CN101285620B - Split pressure bearing type solar water heater - Google Patents
Split pressure bearing type solar water heater Download PDFInfo
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- CN101285620B CN101285620B CN2008101138085A CN200810113808A CN101285620B CN 101285620 B CN101285620 B CN 101285620B CN 2008101138085 A CN2008101138085 A CN 2008101138085A CN 200810113808 A CN200810113808 A CN 200810113808A CN 101285620 B CN101285620 B CN 101285620B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Abstract
The present invention discloses a split pressure bearing type solar water heater, comprising a heat collecting header (15), a plurality of heat collecting and guide units arranged in parallel, a pressure bearing water tank (8) and a temperature difference control unit, wherein, a heat exchange pipe coil (82) is arranged inside the pressure bearing water tank (8) which is connected with the heat collecting header (15) by a conduit tube A (6) and a conduit tube B (7) which is provided with a recycle pump (11); the inner wall of the pressure bearing water tank (8) is provided with a temperature sensor B(13) which is used for sensing the water temperature inside the pressure bearing water tank (8), that is the hot water temperature T13, and for outputting the hot water temperature T13 to a temperature difference controller (14); a temperature sensor A (12) is arranged on the outer wall of a heat pipe C (3c) of the third heat collecting and guide unit, the temperature sensor A (12) is used for sensing the temperature inside a vacuum heat collecting pipe in the third heat collecting and guide unit, that is the heat energy temperature T12, and for outputting the heat energy temperature T12 to the temperature difference controller (14) which compares the difference value between the received hot water temperature T13 and the heat energy temperature T12 and obtains the on and off information for driving the recycle pump (11), wherein, delta T is equal to T12 minus T13.
Description
Technical field
The present invention relates to a kind of solar water heater, more particularly say, be meant that mode that a kind of employing circulates the liquid forced heat-exchanging carries out the split pressure-bearing type solar water heater of exchange heat.
Background technology
Solar water heater is made up of complete glass vacuum sun thermal-collecting tube (or claiming vacuum tube, vacuum heat collection pipe), attemperater, bearing support three big parts, and its core set thermal element is an all-glass vacuum thermal-collecting tube.Plate multilayer gradual change aluminium-nitrogen aluminized coating or stainless steel aluminium nitride through magnetron sputtering technology at the outer wall of inner tube of thermal-collecting tube, this coating can stand 400 ℃ high temperature to the selective absorption of sunshine, its absorptance 〉=0.92, and emission is than≤0.09 (80 ℃).Vacuum heat collection pipe selectivity absorption sunshine is converted into heat energy with luminous energy constantly heats the water in the vacuum tube.Because " thermal siphon " effect, promptly the proportion of cold water is bigger, and the proportion of hot water is less, thereby the hot water in the vacuum tube enters water tank naturally constantly toward come-up.Water in water tank constantly sinks naturally, enters vacuum heat collection pipe.Go round and begin again, the water in solar water heater's attemperater also just has been heated.
Direct insertion all-glass vacuum thermal-collecting tube solar water heater, be high-absorbility and the low-launch-rate that utilizes vacuum heat collection pipe to have, convert the solar radiation that absorbs to heat energy, utilize cold water than great, the characteristics that hot water proportion is little form cold water from top to bottom, hot water Natural Circulation from bottom to top in vacuum tube, the temperature of whole water is progressively raise, reach uniform temperature.But the pipe inner storing water amount of existing vacuum heat collection pipe is excessive, and heat conduction toggle speed is slow, easily causes heat waste.Water capacity is 3L in the general diameter 58mm, the pipe of the vacuum heat collection pipe of long 1.8m, and the solar water heater water tank capacity of one 30 arm is 250L, and then the water in the vacuum heat collection pipe will reach 90L, account for 26% of Total Water.Because of the defective of existing structure, store this part water in vacuum heat collection pipe and entrained heat thereof after the intensification, not only can not be used effectively, play the effect of heat radiation on the contrary.
The defective that existing direct insertion all-glass vacuum thermal-collecting tube solar water heater roughly exists is as follows:
(1) water yield in the vacuum heat collection pipe is excessive, and toggle speed is slow.With diameter 58mm, the vacuum heat collection pipe of long 1.5m is an example, and the water yield accounts for about 1/3 of water volume that can be utilized in the pipe, and the water in the necessary first heating tube of the heat of the sun of conversion is so cause toggle speed slow;
(2) heat waste is big, and available heat is low.Water in the vacuum heat collection pipe pipe not only can not use, and cause heat waste, make the water that resides in the vacuum heat collection pipe play the reaction of heat radiation, especially the water in the pipe is through night or cloudy day cooling, and when solar temperature rising once more, heating earlier is with the water of cooling.This problem especially severe in northerly winter, especially when ice and snow covered, the water freezing in the pipe caused breaking of vacuum tube, causes the thing of systemic breakdown to occur repeatedly;
(3) breaking of single vacuum tube promptly caused the whole system paralysis, special circumstances, and as balcony wall-hanging, peril is easily brewageed in breaking of single vacuum tube;
(4) because of the requirement of manufacturing process and installation, ligament is big, and the photo-thermal conversion ratio of unit are is low.With the vacuum tube of diameter 58mm, long 1.8m, tube pitch is from being generally 80mm, and its photo-thermal conversion ratio generally is lower than 55%;
(5) vacuum heat-collecting in-tube fouling and precipitation have a strong impact on exchange heat, even make the vacuum heat-collecting tube failure.
(6) can not bearing operation.Direct insertion all-glass vacuum thermal-collecting tube solar water heater can only bear the pressure of 0.03MPa, and general city tap-water pressure criteria is 0.14MPa by the sealing of silica gel circle.
Summary of the invention
The purpose of this invention is to provide mode that a kind of employing circulates the liquid forced heat-exchanging and carry out the split pressure-bearing type solar water heater of exchange heat, this split pressure-bearing type solar water heater has changed existing direct insertion vacuum heat-collecting cast solar water heater and has carried out the mode of exchange heat with " thermal siphon ", in the mode of forcing the circulation of power drive heat transferring medium the heat in the vacuum heat collection pipe is swapped out.In addition, heat exchange coil 82 is set in press-bearing water tank 8, the water in the press-bearing water tank 8 has been realized secondary heat exchange.
The present invention is a kind of split pressure-bearing type solar water heater, and it includes a thermal-arrest header (15), a plurality of thermal-arrest heat-conducting unit that is arranged in parallel, a press-bearing water tank (8), a temperature difference control module; The structure of described a plurality of thermal-arrest heat-conducting units that are arranged in parallel is identical, and adopts the layout that is arranged in parallel to be installed on the thermal-arrest header (15); Heat exchange coil (82) is installed in the press-bearing water tank (8); Press-bearing water tank (8) is connected with thermal-arrest header (15) by A conduit (6), B conduit (7), B conduit (7) is provided with circulating pump (11), B temperature sensor (13) is installed on the inwall of press-bearing water tank (8), and B temperature sensor (13) is used for the water temperature hot water water temperature T in the perception press-bearing water tank (8)
13, and with the hot water water temperature T
13Export to differential temperature controller (14); A temperature sensor (12) is installed in the outer wall of the C heat pipe (3c) of the 3rd group of thermal-arrest heat-conducting unit, and the temperature that A temperature sensor (12) is used in the 3rd group of thermal-arrest heat-conducting unit vacuum heat collection pipe of perception is the heat energy temperature T
12, and with the heat energy temperature T
12Export to differential temperature controller (14); The hot water water temperature T of differential temperature controller (14) to receiving
13, the heat energy temperature T
12Carry out difference relatively, obtain to drive the opening and closing information Δ T=T of circulating pump (11)
12-T
13
Split pressure-bearing type solar water heater of the present invention has following advantage:
(1) provide a kind of novel heat exchange pattern, the power that provides with circulating pump 11 makes the liquid in the thermal-arrest header 15 realize the forced circulation heat exchange, carries out secondary heat exchange by the water in heat exchange heat exchange coil 82 and the press-bearing water tank 8 again, and heat exchange efficiency improves 10～25%.
(2) realized efficient heat-collecting heat conduction, a small amount of heat transferring medium (water or conduction oil or anti-icing fluid) of only depositing by the heat pipe that is installed in vacuum heat collection pipe inside, and outer power drives the heat transferring medium circulation heat in the thermal-collecting tube is taken out of; Effectively improve day available heat that gets and reach 10～30%.
(3) adopt vacuum tube solid matter mode, the vacuum tube that with the diameter is 58mm is an example, spacing in the existing solar water heater between vacuum tube and the vacuum tube is that 80mm, gap are 22mm, and the present invention adopts the spacing that can narrow down between vacuum tube and the vacuum tube after the close-spaced technique is that 60mm, gap are 2mm, has improved unit thermal-arrest rate effectively and can reach 25%.
(4) do not have heat transferring medium between thermal-collecting tube and heat pipe, then heat waste reduces significantly;
(5) the pipe-in-pipe structure of employing intensify heat transfer pipe, heat pipe, vacuum heat collection pipe can be because of the bombing that contacts of heat transferring medium and vacuum heat-collecting tube wall, even single vacuum heat collection pipe cracking can not make the paralysis of overall thermal hydrophone;
(6) the present invention's employing circulates liquid forced heat-exchanging mode and can really realize quick conductive, owing to adopt close-spaced technique by the collector tube inner wall location, the integral thickness of thermal-arrest header 15 among the present invention, thermal-arrest heat-conducting unit is reduced greatly, reach the ultrathin design of 8～10cm, easily combine with building;
(7) by the heat exchange coil 82 in the press-bearing water tank 8, the water in the press-bearing water tank 8 is realized secondary heat exchange, realized solar water heater and the same equal pressure in municipal tap water, also avoided the secondary pollution of water in the solar water heater of the present invention simultaneously.
Description of drawings
Fig. 1 is the circulating fluid forced heat-exchanging schematic diagram of solar water heater of the present invention.
Figure 1A is the installation diagram of solar water heater of the present invention.
Fig. 2 is the structure chart of thermal-arrest heat-conducting unit of the present invention.
Fig. 2 A is the blast diagrammatic sketch of Fig. 2.
Fig. 3 is the configuration diagram of thermal-arrest header of the present invention.
Fig. 3 A is another configuration diagram of thermal-arrest header of the present invention.
Fig. 4 is the structure chart of heat exchange heat exchange coil of the present invention.
Among the figure: 1a.A vacuum heat collection pipe 1b.B vacuum heat collection pipe 1c.C vacuum heat collection pipe 1d. through hole
2a.A heat pipe 2b.B heat pipe 2c.C heat pipe 2d. wire 21. openends
22. closed end 3a.A intensify heat transfer pipe 3b.B intensify heat transfer pipe 3c.C intensify heat transfer pipe 31.A openend
32.B the openend 4. mainstream channel outer tube 4a.A outer tube mouth 4b.B of the UNICOM outer tube mouth 4c.C of UNICOM outer tube UNICOM mouths
41. pipe UNICOM mouth in the pipe 5a.A in outer wall 42. inwalls 43. incubation cavities 5. mainstream channels
5b.B pipe UNICOM mouth 51. right-hand member 6.A conduit 7.B conduits in the interior pipe mouth 5c.C of UNICOM
8. press-bearing water tank 801.A interface 802.B interface 803.C interface 804.D interface
80. fluid infusion case 81. air bleeding valves 82. heat exchange coil 821.A connector 822.B connectors
83.C conduit 84.D conduit 85.A valve 86.B valve 9a.A location thermal resistance plug
9b.B thermal resistance plug 9c.C location, location thermal resistance plug 91. central through holes 92. stick harnesses 11. circulating pumps
12.A temperature sensor 13.B temperature sensor 14. differential temperature controllers 15. thermal-arrest headers
151.A interface 152.B interface 153. right-hand member end faces 154. left end end faces
16.A thermal-arrest heat-conducting unit 17.B thermal-arrest heat-conducting unit 18.C thermal-arrest heat-conducting unit
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Shown in Fig. 1, Figure 1A, split pressure-bearing type solar water heater of the present invention includes a thermal-arrest header 15, a plurality of thermal-arrest heat-conducting unit that is arranged in parallel, press-bearing water tank 8, a temperature difference control module; A plurality of thermal-arrest heat-conducting units that are arranged in parallel are installed on the thermal-arrest header 15, be provided with heat exchange coil 82 in the press-bearing water tank 8, A interface 801 backs that one end of heat exchange coil 82 passes press-bearing water tank 8 are connected on the B interface 152 of thermal-arrest header 15 by A conduit 6, and B interface 802 backs that the other end of heat exchange coil 82 passes press-bearing water tank 8 are connected on the A interface 151 of thermal-arrest header 15 by B conduit 7;
Described a plurality of thermal-arrest heat-conducting unit that is arranged in parallel is meant A thermal-arrest heat-conducting unit 16, B thermal-arrest heat-conducting unit 17, C thermal-arrest heat-conducting unit 18; In the present invention, the arrangement number of thermal-arrest heat-conducting unit can be mated assembling according to the hot water amount that the user uses.As a water heater that uses the hot water amount as 350L, 30～35 support thermal conductance hot cells that can be arranged in parallel are assemblied on the thermal-arrest header 15.
Described temperature difference control module is made up of A temperature sensor 12, B temperature sensor 13, differential temperature controller 14, circulating pump 11; The temperature value that this temperature difference control module is exported to differential temperature controller 14 according to A temperature sensor 12, B temperature sensor 13 is used to provide difference relatively, decide to start or close circulating pump 11, thus the unlatching of heat exchange or stop between control solar thermal collector part and the press-bearing water tank 8.
Have A interface 801, B interface 802, C interface 803,804 4 interfaces of D interface on the described press-bearing water tank 8, the upper end of press-bearing water tank 8 is equipped with air bleeding valve 81, be provided with heat exchange coil 82 in the press-bearing water tank 8, heat exchange coil 82 is helical structure (referring to shown in Figure 4), two ends are respectively A connector 821, B connector 822, A connector 821 is connected with conduit by A interface 801, and B connector 822 is connected press-bearing water tank with conduit by B interface 802;
A interface 801 is connected with the B interface 152 of thermal-arrest header 15 by A conduit 6, and the other end of A conduit 6 is connected with the A connector 821 of heat exchange coil 82;
In the present invention, shown in Fig. 1, Figure 1A, described thermal-arrest header 15 is made of pipe 5 in mainstream channel outer tube 4 and the mainstream channel, pipe 5 places and forms the pipe-in-pipe structure in the mainstream channel outer tube 4 in the mainstream channel, and the right-hand member 51 of pipe 5 is connected for sealing with the madial wall of the right-hand member end face 153 of mainstream channel outer tube 4 in the mainstream channel;
Have A interface 151 on the left end end face 154 of mainstream channel outer tube 4, have B interface 152 on the right-hand member end face 153 of mainstream channel outer tube 4, fluid infusion case 80 is installed on the body of mainstream channel outer tube 4, the body of mainstream channel outer tube 4 below has a plurality of outer tube UNICOM's mouths (the mouth 4a of A outer tube UNICOM, the mouth 4b of B outer tube UNICOM, the mouth 4c of C outer tube UNICOM), and this outer tube UNICOM mouth is used for being connected with the heat pipe of thermal-arrest heat-conducting unit (connection herein can be weld, be threaded, grafting etc.); In the present invention, be placed with heat transferring medium in the fluid infusion case 80, for solar water heater, heat transferring medium can be water, conduction oil or anti-icing fluid.The A interface 151 of thermal-arrest header 15 is connected with the B connector 822 of heat exchange coil 82 by B conduit 7, and the B interface 152 of thermal-arrest header 15 is connected with the A connector 821 of heat exchange coil 82 by A conduit 6.
The left end of pipe 5 is sealing in the mainstream channel, and right-hand member 51 is an opening; In the mainstream channel body of pipe 5 below have a plurality of in pipe UNICOM mouths (in the A in pipe the mouth 5a of UNICOM, the B in pipe the mouth 5b of UNICOM, the C pipe mouth 5c of UNICOM), pipe UNICOM mouth is used for being connected with the intensify heat transfer pipe of thermal-arrest heat-conducting unit (connection herein can be weld, be threaded, grafting etc.) in this.
Be depicted as another structure of mainstream channel outer tube 4 referring to Fig. 3, Fig. 3 A.Mainstream channel outer tube 4 is a double-decker, be that mainstream channel outer tube 4 is made of mainstream channel outer tube wall 42, mainstream channel outer tube outer wall 41 and incubation cavity 43, be incubation cavity 43 between the mainstream channel outer tube wall 42 of mainstream channel outer tube 4 and the mainstream channel outer tube outer wall 41, can place insulation material (foaming Polyurethane) in the incubation cavity 43 or vacuumize.
In the present invention, about thermal-arrest header 15 be connected (shown in Figure 1A) as described below with a plurality of thermal-arrest heat-conducting units (A thermal-arrest heat-conducting unit 16, B thermal-arrest heat-conducting unit 17, C thermal-arrest heat-conducting unit 18): the pipe mouth 5a of UNICOM is connected in the A in the A openend 31 of the A intensify heat transfer pipe 3a of A thermal-arrest heat-conducting unit 16 and the mainstream channel on the pipe 5, and the mouth 4a of A outer tube UNICOM that the B openend 32 of A intensify heat transfer pipe 3a passes on the mainstream channel outer tube 4 is placed in the A heat pipe 2a of A thermal-arrest heat-conducting unit 16; The A openend of the B intensify heat transfer pipe 3b of B thermal-arrest heat-conducting unit 17 is connected with the pipe mouth 5b of UNICOM in the interior B that manages on 5 of mainstream channel, and the mouth 4b of B outer tube UNICOM that the B openend of B intensify heat transfer pipe 3b passes on the mainstream channel outer tube 4 is placed in the B heat pipe 2b of B thermal-arrest heat-conducting unit 17; The A openend of the C intensify heat transfer pipe 3c of C thermal-arrest heat-conducting unit 18 is connected with the pipe mouth 5c of UNICOM in the interior C that manages on 5 of mainstream channel, and the mouth 4c of C outer tube UNICOM that the B openend of C intensify heat transfer pipe 3c passes on the mainstream channel outer tube 4 is placed in the C heat pipe 2c of C thermal-arrest heat-conducting unit 18.
Mainstream channel outer tube 4 can be metal tube or plastic tube.The height D of mainstream channel outer tube 4
4=40～200mm.
Referring to shown in Figure 1, on the thermal-arrest header 15 among the present invention a plurality of thermal-arrest heat-conducting units can be installed, a plurality of thermal-arrest heat-conducting units adopt the layout that is arranged in parallel, as parallel placement between A thermal-arrest heat-conducting unit 16, B thermal-arrest heat-conducting unit 17, the C thermal-arrest heat-conducting unit 18, and the clearance D of each thermal-arrest heat-conducting unit=1～15mm (be clearance D=1～15mm between A thermal-arrest heat-conducting unit 16 and the B thermal-arrest heat-conducting unit 17, clearance D=1～15mm) between B thermal-arrest heat-conducting unit 17 and the C thermal-arrest heat-conducting unit 18.
In the present invention, for the structure of thermal-arrest heat-conducting unit shown in Fig. 2, Fig. 2 A, A thermal-arrest heat-conducting unit 16 is by the tube-in-tube structure that outside to inside is A vacuum heat collection pipe 1a, A heat pipe 2a, A intensify heat transfer pipe 3a in turn, A heat pipe 2a is installed in the through hole 1d of A vacuum heat collection pipe 1a by A location thermal resistance plug 9a, and A intensify heat transfer pipe 3a inserts in the A heat pipe 2a;
A location thermal resistance plug 9a adopts silica gel, vegetable cork to be processed into one-body molded, and the center of A location thermal resistance plug 9a has central through hole 91, and the cock body of A location thermal resistance plug 9a is provided with stick harness 92; The blind end 22 that the central through hole 91 of A location thermal resistance plug 9a is used for A heat pipe 2a passes through.The stick harness 92 of A location thermal resistance plug 9a and the through hole 1d inwall fluid-tight engagement of A vacuum heat collection pipe 1a do not lose with the heat that reaches in the A vacuum heat collection pipe 1a.
A vacuum heat collection pipe 1a one end is a blind end, and the other end has through hole 1d, and the end that through hole 1d is used for A heat pipe 2a passes and by A location thermal resistance plug 9a A heat pipe 2a and A vacuum heat collection pipe 1a is installed together.In the present invention, A vacuum heat collection pipe 1a selects double-deck complete glass vacuum sun thermal-collecting tube common on the market for use.A vacuum heat collection pipe 1a length H
1=1.15～3.0m, the outer diameter D of A vacuum heat collection pipe 1a
1=40～80mm, the inside diameter D of A vacuum heat collection pipe 1a
10=30～70mm.
Be wound with wire 2d (be generally on the outer wall that inserts that section A heat pipe 2a in the A vacuum heat collection pipe 1a and be wound with wire 2d) on the outer wall of A heat pipe 2a, wire 2d is used to accelerate the conversion of heat.The end of A heat pipe 2a is a blind end 22, the other end is an openend 21, the blind end 22 of A heat pipe 2a inserts in the A vacuum heat collection pipe 1a, and the openend 21 of A heat pipe 2a connects (can be to be threaded or to peg graft or weld) on mainstream channel outer tube 4.A heat pipe 2a realizes location with A vacuum heat collection pipe 1a by A location thermal resistance plug 9a, promptly A heat pipe 2a insert in the A vacuum heat collection pipe 1a length and with being connected of A vacuum heat collection pipe 1a.The length H of A heat pipe 2a
2=0.5～3.0m, the outer diameter D of A heat pipe 2a
2=15～65mm, the inside diameter D of A heat pipe 2a
20=10～64mm.
The two ends of A intensify heat transfer pipe 3a are opening (A openend 31, B openend 32), in the A openend 31 of A intensify heat transfer pipe 3a and the mainstream channel in the A of pipe 5 the pipe mouth 5a of UNICOM is connected (can be to be threaded or to peg graft or weld), the B openend 32 of A intensify heat transfer pipe 3a passes behind the mouth 4a of A outer tube UNICOM of mainstream channel outer tube 4 in the insertion A heat pipe 2a; The length H of A intensify heat transfer pipe 3a
3=0.5～3.0m, the outer diameter D of A intensify heat transfer pipe 3a
3=4～30mm, the inside diameter D of A intensify heat transfer pipe 3a
30=1～29mm.
Shown in Fig. 1, Figure 1A, B temperature sensor 13 is installed on the inwall of press-bearing water tank 8, B temperature sensor 13 is used for the water temperature T in the perception press-bearing water tank 8
13(abbreviate the hot water water temperature T as
13), and with the hot water water temperature T
13Export to differential temperature controller 14.
A temperature sensor 12 is installed in the outer wall of the C heat pipe 3c of the 3rd group of thermal-arrest heat-conducting unit, and A temperature sensor 12 is used for the temperature T in the 3rd group of thermal-arrest heat-conducting unit vacuum heat collection pipe of perception
12(abbreviate the heat energy temperature T as
12), and with the heat energy temperature T
12Export to differential temperature controller 14.
The hot water water temperature T of 14 pairs of receptions of differential temperature controller
13, the heat energy temperature T
12Carry out difference relatively, obtain to drive the opening and closing information Δ T=T of circulating pump 11
12-T
13ON cycle pump 11, i.e. Δ T=T when the temperature difference of described opening and closing information Δ T is higher than 8 ℃
12-T
13＞8; When being lower than 2 ℃, the temperature difference of described opening and closing information Δ T closes circulating pump 11, i.e. Δ T=T
12-T
13＜2.
In the mainstream channel pipe 5 be provided with a plurality of in pipe UNICOM mouths, promptly be provided with in the A in pipe the mouth 5a of UNICOM, the B pipe mouth 5c of UNICOM in pipe the mouth 5b of UNICOM, the C in turn from A port to the B port of mainstream channel outer tube 4.The pipe mouth 5a of UNICOM is used for being connected with the end of A intensify heat transfer pipe 3a in the A, and the pipe mouth 5b of UNICOM is used for being connected with the end of B intensify heat transfer pipe 3b in the B, and the pipe mouth 5c of UNICOM is used for being connected with the end of C intensify heat transfer pipe 3c in the C.
Mainstream channel outer tube 4 is provided with a plurality of outer tube UNICOM mouth, and promptly A port to the B port from mainstream channel outer tube 4 is provided with the mouth 4a of A outer tube UNICOM, the mouth 4b of B outer tube UNICOM, the mouth 4c of C outer tube UNICOM in turn.The mouth 4a of A outer tube UNICOM is used for being connected with the end of A heat pipe 2a, and the mouth 4b of B outer tube UNICOM is used for being connected with the end of B heat pipe 2b, and the mouth 4c of C outer tube UNICOM is used for being connected with the end of C heat pipe 2c.
A location thermal resistance plug 9a realizes the location between A vacuum heat collection pipe 1a and the A heat pipe 2a is assembled; B location thermal resistance plug 9b realizes the location between B vacuum heat collection pipe 1b and the B heat pipe 2b is assembled; C location thermal resistance plug 9c realizes the location between C vacuum heat collection pipe 1c and the C heat pipe 2c is assembled.
The workflow of split pressure-bearing type solar water heater of the present invention is:
(1) open B valve 86, running water injects to press-bearing water tank 8 through D conduit 84; Under the pressure of running water self, the air in the press-bearing water tank 8 is discharged with air bleeding valve 81; Fill with press-bearing water tank 8 up to running water, B valve 86 is often opened;
(2) when solar radiation is to vacuum heat collection pipe, the plated film in the vacuum heat collection pipe inner layer glass outside is a heat energy with the transform light energy more than 90%, owing to vacuumize between the vacuum heat collection pipe double glazing, top has location thermal resistance plug to stop heat to distribute again, causes the heat of vacuum heat collection pipe inside to be dispersed in the atmosphere and goes;
(3) the hot water temperature T that receives when differential temperature controller 14
13, the heat energy temperature T
12Temperature difference T start circulating pump 11 when being higher than the design temperature value range;
(4) under the drive of circulating pump 11, the heat transferring medium in mainstream channel, split channel, the heat exchange coil begins circulation.Being installed in the heat exchange coil 82 in the press-bearing water tank 8 has heat transferring medium, is flowed out by B interface 802, enter through circulating pump 11, A interface 151 and manage 5 in the mainstream channel, again in mainstream channel in each on the pipe 5 the pipe connecting port flow in each split channel and manage.Heat transferring medium pipe in each split channel enters each split channel outer tube after stretching into into the openend of split channel outer tube separately; At this moment, the cavity that forms between each split channel outer tube and vacuum heat-collecting inside pipe wall is a relative high-temperature area.After heat transferring medium pipe in each split channel flow into the split channel outer tube, heat transferring medium promptly was heated, and had taken away the heat in the vacuum heat collection pipe by the heat transferring medium circulation that is:; The heated heat transferring medium behind each split channel outer tube of flowing through through being opened in the outer tube connecting port of mainstream channel outer tube separately, imports mainstream channel outer tube 4;
(5) enter heat exchange coil 82 behind the B interface 152 of Xun Huan heat transferring medium by mainstream channel outer tube 4, carry out secondary heat exchange with the contacting of running water in the press-bearing water tank 8 by heat exchange coil 82 tube walls.Like this, the heat transferring medium of the heat of solar energy by circulation taken heat in the running water in the press-bearing water tank 8 to, and storage is in order to using, that is: the running water of press-bearing water tank 8 li has been heated by solar vacuum heat-collecting pipe;
(6) through the circulation of an end time, the heat energy temperature T that A temperature sensor 12 detects
12Can reduce gradually, and the hot water water temperature T that B temperature sensor 13 detects
13Can be gradually raise, when the temperature difference was lower than 2 ℃ of setting values, circulating pump 11 quit work;
(7) through the unlatching of circulating pump 11 repeatedly, close, the heat of solar energy will be converted to thermal energy storage continuously in press-bearing water tank 8, open the A valve 85 on the press-bearing water tank 8, derive by C conduit 83, can use the solar water identical, also have new running water to head in the press-bearing water tank 8 simultaneously with tap water pressure.
Claims (8)
1. a split pressure-bearing type solar water heater is characterized in that: include a thermal-arrest header (15), a plurality of thermal-arrest heat-conducting unit that is arranged in parallel, a press-bearing water tank (8), a temperature difference control module; The structure of described a plurality of thermal-arrest heat-conducting units that are arranged in parallel is identical, and adopts the layout that is arranged in parallel to be installed on the thermal-arrest header (15);
Have A interface (801), B interface (802), C interface (803), (804) four interfaces of D interface on the described press-bearing water tank (8), the upper end of press-bearing water tank (8) is equipped with air bleeding valve (81), be provided with heat exchange coil (82) in the press-bearing water tank (8), heat exchange coil (82) is a helical structure, and two ends are respectively A connector (821), B connector (822);
A interface (801) is connected with the B interface (152) of thermal-arrest header (15) by A conduit (6), and the other end of A conduit (6) is connected with the A connector (821) of heat exchange coil (82);
B interface (802) is connected with the A interface (151) of thermal-arrest header (15) by B conduit (7), and B conduit (7) is provided with circulating pump (11), and the other end of B conduit (7) is connected with the B connector (822) of heat exchange coil (82);
C interface (803) is supplied with the output of the hot water in the press-bearing water tank (8) to the user by C conduit (83) and is used, and A valve (85) is installed on the C conduit (83);
D interface (804) is connected with the tap of outside running water by D conduit (84), realizes that cold water injects in the press-bearing water tank (8), is equipped with B valve (86) on the D conduit (84);
Described thermal-arrest header (15) is made of pipe (5) in mainstream channel outer tube (4) and the mainstream channel, pipe (5) places and forms the pipe-in-pipe structure in the mainstream channel outer tube (4) in the mainstream channel, and the right-hand member (51) of pipe (5) is connected for sealing with the madial wall of the right-hand member end face (153) of mainstream channel outer tube (4) in the mainstream channel;
Have A interface (151) on the left end end face (154) of mainstream channel outer tube (4), have B interface (152) on the right-hand member end face (153) of mainstream channel outer tube (4), fluid infusion case (80) is installed on the body of mainstream channel outer tube (4), and the body of mainstream channel outer tube (4) below has a plurality of outer tube UNICOM mouth; The A interface (151) of thermal-arrest header (15) is connected with the B connector (822) of heat exchange coil (82) by B conduit (7), and the B interface (152) of thermal-arrest header (15) is connected with the A connector (821) of heat exchange coil (82) by A conduit (6);
The left end of pipe (5) is sealing in the mainstream channel, and right-hand member (51) is an opening; The body of pipe (5) below has a plurality of interior UNICOM's mouths of managing in the mainstream channel;
A thermal-arrest heat-conducting unit (16) is by the tube-in-tube structure that outside to inside is A vacuum heat collection pipe (1a), A heat pipe (2a), A intensify heat transfer pipe (3a) in turn, A heat pipe (2a) is installed in the through hole (1d) of A vacuum heat collection pipe (1a) by A location thermal resistance plug (9a), and A intensify heat transfer pipe (3a) inserts in the A heat pipe (2a);
The center of A location thermal resistance plug (9a) has central through hole (91), and the cock body of A location thermal resistance plug (9a) is provided with stick harness (92); The blind end (22) that the central through hole (91) of A location thermal resistance plug (9a) is used for A heat pipe (2a) passes through;
A vacuum heat collection pipe (1a) end is a blind end, and the other end has through hole (1d), and the end that through hole (1d) is used for A heat pipe (2a) passes and by A location thermal resistance plug (9a) A heat pipe (2a) and A vacuum heat collection pipe (1a) is installed together;
One end of A heat pipe (2a) is blind end (22), and the other end is openend (21), and the blind end (22) of A heat pipe (2a) inserts in the A vacuum heat collection pipe (1a), and the openend (21) of A heat pipe (2a) is connected on the mainstream channel outer tube (4); Be wound with wire (2d) on the outer wall of A heat pipe (2a);
The A openend (31) of A intensify heat transfer pipe (3a) is connected with A interior pipe UNICOM's mouth (5a) of pipe (5) in the mainstream channel, and the B openend (32) of A intensify heat transfer pipe (3a) passes A outer tube UNICOM mouth (4a) back of mainstream channel outer tube (4) and inserts in the A heat pipe (2a);
Temperature difference control module is made up of A temperature sensor (12), B temperature sensor (13), differential temperature controller (14), circulating pump (11);
B temperature sensor (13) is installed on the inwall of press-bearing water tank (8), and B temperature sensor (13) is used for the water temperature hot water water temperature T in the perception press-bearing water tank (8)
13, and with the hot water water temperature T
13Export to differential temperature controller (14);
A temperature sensor (12) is installed in the outer wall of the C heat pipe (3c) of the 3rd group of thermal-arrest heat-conducting unit, and the temperature that A temperature sensor (12) is used in the 3rd group of thermal-arrest heat-conducting unit vacuum heat collection pipe of perception is the heat energy temperature T
12, and with the heat energy temperature T
12Export to differential temperature controller (14);
The hot water water temperature T of differential temperature controller (14) to receiving
13, the heat energy temperature T
12Carry out difference relatively, obtain to drive the opening and closing information Δ T=T of circulating pump (11)
12-T
13
2. split pressure-bearing type solar water heater according to claim 1, it is characterized in that: mainstream channel outer tube (4) is a double-decker, be that mainstream channel outer tube (4) is made of mainstream channel outer tube wall (42), mainstream channel outer tube outer wall (41) and incubation cavity (43), be incubation cavity (43) between the mainstream channel outer tube wall (42) of mainstream channel outer tube (4) and the mainstream channel outer tube outer wall (41), place insulation material in the incubation cavity (43) or vacuumize.
3. split pressure-bearing type solar water heater according to claim 1 is characterized in that: ON cycle pump (11), i.e. Δ T=T when the temperature difference of opening and closing information Δ T is higher than 8 ℃ in the temperature difference control module
12-T
13＞8; When being lower than 2 ℃, the temperature difference of opening and closing information Δ T closes circulating pump (11), i.e. Δ T=T
12-T
13＜2.
4. split pressure-bearing type solar water heater according to claim 1 is characterized in that: the clearance D=1～15mm of adjacent two thermal-arrest heat-conducting units in a plurality of thermal-arrest heat-conducting units.
5. split pressure-bearing type solar water heater according to claim 1 is characterized in that: A vacuum heat collection pipe (1a) length H
1=1.15～3.0m, the outer diameter D of A vacuum heat collection pipe (1a)
1=40～80mm, the inside diameter D of A vacuum heat collection pipe (1a)
10=30～70mm.
6. split pressure-bearing type solar water heater according to claim 1 is characterized in that: the length H of A heat pipe (2a)
2=0.5～3.0m, the outer diameter D of A heat pipe (2a)
2=15～65mm, the inside diameter D of A heat pipe (2a)
20=10～64mm.
7. split pressure-bearing type solar water heater according to claim 1 is characterized in that: the length H of A intensify heat transfer pipe (3a)
3=0.5～3.0m, the outer diameter D of A intensify heat transfer pipe (3a)
3=4～30mm, the inside diameter D of A intensify heat transfer pipe (3a)
30=1～29mm.
8. split pressure-bearing type solar water heater according to claim 1 is characterized in that: the height D of mainstream channel outer tube (4)
4=40～200mm; The inside diameter D of pipe (5) in the mainstream channel
5=10～40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101138085A CN101285620B (en) | 2008-05-30 | 2008-05-30 | Split pressure bearing type solar water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101138085A CN101285620B (en) | 2008-05-30 | 2008-05-30 | Split pressure bearing type solar water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101285620A CN101285620A (en) | 2008-10-15 |
| CN101285620B true CN101285620B (en) | 2011-10-12 |
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ID=40057947
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101138085A Expired - Fee Related CN101285620B (en) | 2008-05-30 | 2008-05-30 | Split pressure bearing type solar water heater |
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| Country | Link |
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| CN (1) | CN101285620B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769635B (en) * | 2010-01-15 | 2012-05-23 | 大连希奥特检测设备有限公司 | Heat collection module of water-injection pressure-bearing circulating full-glass vacuum tube |
| CN101999844A (en) * | 2010-10-21 | 2011-04-06 | 莱芜市凤凰太阳能有限公司 | Solar-powered water dispenser |
| CN102261755A (en) * | 2011-05-20 | 2011-11-30 | 张振华 | Solar energy header with double inner containers |
| CN102261759A (en) * | 2011-05-20 | 2011-11-30 | 张振华 | Solar vacuum heat collecting pipe with double metal flow channels |
| CN104374098A (en) * | 2014-11-25 | 2015-02-25 | 白峻光 | Vacuum tube solar heat collector |
| CN105571152B (en) * | 2015-08-27 | 2017-06-30 | 佛山光腾新能源股份有限公司 | Solar water heater |
| CN113091329A (en) * | 2021-04-13 | 2021-07-09 | 临沂市兰山区永汇不锈钢制品厂 | Pressure-bearing solar boiler |
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| CN2809505Y (en) * | 2005-06-13 | 2006-08-23 | 北京清华阳光能源开发有限责任公司 | Solar water heater |
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| CN201237377Y (en) * | 2008-05-30 | 2009-05-13 | 朱彤 | Split bearing type solar water heater |
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| US4353352A (en) * | 1980-10-23 | 1982-10-12 | Bio-Energy Systems, Inc. | Solar thermosyphon water heater |
| CN2292257Y (en) * | 1995-03-28 | 1998-09-23 | 于兆范 | Separated heat-pipe solar energy water heater used for all year round |
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| CN201237377Y (en) * | 2008-05-30 | 2009-05-13 | 朱彤 | Split bearing type solar water heater |
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|---|---|
| CN101285620A (en) | 2008-10-15 |
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