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Publication numberCN101896771 A
Publication typeApplication
Application numberCN 200880118719
PCT numberPCT/PL2008/000092
Publication dateNov 24, 2010
Filing dateDec 1, 2008
Priority dateDec 3, 2007
Also published asCA2705730A1, EP2217858A2, EP2217858B1, EP2461098A2, EP2461098A3, US20100307393, WO2009072909A2, WO2009072909A3, WO2009072909A4
Publication number200880118719.8, CN 101896771 A, CN 101896771A, CN 200880118719, CN-A-101896771, CN101896771 A, CN101896771A, CN200880118719, CN200880118719.8, PCT/2008/92, PCT/PL/2008/000092, PCT/PL/2008/00092, PCT/PL/8/000092, PCT/PL/8/00092, PCT/PL2008/000092, PCT/PL2008/00092, PCT/PL2008000092, PCT/PL200800092, PCT/PL8/000092, PCT/PL8/00092, PCT/PL8000092, PCT/PL800092
Inventors威透德科瓦勒维斯基
Applicant威透德科瓦勒维斯基
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Stoker-fired boiler, a method of modernization of stoker-fired boilers and a method of elimination of uncontrolled leakages of air not taking part in the combustion process in a stoker-fired boiler
CN 101896771 A
Abstract
A boiler according to the invention contains an additional air channel (9) with an inbuilt fan (10) with adjustable output. The first end (91) of the additional air channel (9) is connected with the under-stoker space (11) located outside of the wind boxes (5) of the under-stoker wind boxes system (4). The other end (9') of the additional air channel (9) is connected with either the space of the channel (6) supplying outside air to the wind boxes (5) or with the atmosphere or with the secondary air channel of the combustion chamber (2). Modernization of the existing boilers consists in installation in the described above method of an additional air channel (9) with an inbuilt fan (10). The method of elimination of uncontrolled leakages in a stoker-fired boiler consist in leading out and air, getting through air gaps, from the under-stoker space of the boiler located outside of the wind boxes (5) to the described above additional air channel (6), wherein current output of the fan (10) built into this channel is proportional to the current difference between temperature of air supplied to the wind boxes (5) and temperature of air in the additional air channel (6).
Claims(16)  translated from Chinese
  1. 一种利用加煤机加煤的锅炉,其具有带有次级空气通道的燃烧室(2)、可移动的机械加煤机(3)和加煤机下空间(11),所述加煤机下空间包含带有风箱(5)的加煤机下风箱系统(4)以及将空气从大气供应到所述风箱(5)的内部的通道(6),其特征在于:所述锅炉包含具有输出可调节的内置风扇(10)的额外空气通道(9),其中所述额外空气通道(9)的第一端(9')与位于所述加煤机下风箱系统(4)的所述风箱(5)外面的所述加煤机下空间(11)连接。 An added advantage of stoker coal boiler having a combustion chamber with secondary air passage (2), a movable mechanical stokers (3) and processing coal at space (11), the stoker channel (6) inside the machine under the space contains stoker wind boxes system with bellows (5) (4), and the air is supplied from the atmosphere to the bellows (5), characterized in that: the boiler comprises a Adjustable output built-in fan (10) additional air channel (9), wherein the additional air channel (9) and a second end (9 ') and the stoker is located under the bellows system (4) bellows (5) outside under the stoker space (11).
  2. 2.根据权利要求1所述的锅炉,其特征在于,所述额外空气通道(9)的另一端(9”)与将外部空气供应到所述加煤机下风箱系统(4)的所述风箱(5)的所述通道(6)的空间连接。 The boiler according to claim 1, characterized in that said additional air channel (9) at the other end (9 ") and the outside air supplied to the stoker wind boxes system (4) bellows (5) of the channel (6) of space connection.
  3. 3.根据权利要求1所述的锅炉,其特征在于,所述额外空气通道(9)的另一端(9”)与大气连接。 Boiler according to claim 1, characterized in that the additional air channel (9) and the other end (9 ') is connected to the atmosphere.
  4. 4.根据权利要求1所述的锅炉,其特征在于,所述额外空气通道(9)的另一端(9”)与所述燃烧室(2)的所述次级空气通道连接。 Boiler according to claim 1, characterized in that the additional air channel (9) and the other end (9 ') is connected to the combustion chamber (2) of the secondary air passage.
  5. 5.根据权利要求1到4中任一所述的锅炉,其特征在于,在将空气从大气供应到所述风箱(5)内部的所述通道(6)的空间中,以及在所述额外空气通道(9)的空间中,设置有至少一个空气温度传感器。 Boiler according to claim any one of claims 1-4, characterized in that the air supply from the atmosphere into the bellows (5) inside the channel (6) in the space, and in the additional an air passage (9) in the space, provided with at least one air temperature sensor.
  6. 6.根据权利要求5所述的锅炉,其特征在于,所述空气温度传感器被连接到所述额外空气通道(9)的所述风扇(10)的控制器。 6. Boiler according to claim 5, characterized in that said air temperature sensor is connected to the additional air channel (9) of the fan (10) of the controller.
  7. 7. 一种现代化改装利用加煤机加煤的锅炉的方法,所述锅炉包含具有次级空气通道的燃烧室(2)、可移动的机械加煤机(3)和加煤机下空间(11),所述加煤机下空间包含带有风箱(5)的加煤机下风箱系统(4)以及将空气从大气供应到所述风箱(5)的内部的通道(6), 其特征在于,使位于所述加煤机下风箱系统(4)的所述风箱(5)外面的所述加煤机下空间(11)与具有输出可调节的内置风扇(10)的额外空气通道(9)的第一端(9' )连接。 A modernizing use stoker stoker boiler, said boiler comprising a combustion chamber having a secondary air passage (2), a movable mechanical stokers (3) and processing coal in Space ( 11), under the stoker stoker space included under the bellows system with bellows (5) (4), and the air is supplied from the atmosphere to the bellows (5) inside the channel (6), characterized that makes the stoker located under the bellows system (4) of the bellows (5) outside under the stoker space (11) and having an output adjustable built-in fan (10) additional air passage ( 9) the first end (9 ') connection.
  8. 8.根据权利要求7所述的现代化改装锅炉的方法,其特征在于,所述额外空气通道(9) 的另一端(9”)与将外部空气供应到所述加煤机下风箱系统(4)的所述风箱(5)的所述通道(6)的空间连接。 8. The method of modernization of the boiler as claimed in claim 7, wherein said additional air channel (9) at the other end (9 ") and the outside air supplied to the stoker wind boxes system (4 ) of the bellows (5) of the channel (6) of space connection.
  9. 9.根据权利要求7所述的现代化改装锅炉的方法,其特征在于,使所述额外空气通道(9)的另一端(9”)与大气连接。 9. The method of modernization boiler according to claim 7, characterized in that said additional air channel (9) and the other end (9 ') is connected to the atmosphere.
  10. 10.根据权利要求7所述的现代化改装锅炉的方法,其特征在于,使所述额外空气通道(9)的另一端(9”)与所述燃烧室(2)的所述次级空气通道连接。 10. The method of modernization of the boiler with said combustion chamber (2) a secondary air passage according to the preceding claims, characterized in that said additional air channel (9) and the other end (9 ") connection.
  11. 11.根据权利要求7到10中任一所述的现代化改装锅炉的方法,其特征在于,在将空气从大气供应到所述风箱(5)内部的所述通道(6)的空间中,以及在所述额外空气通道(9) 的空间中,设置至少一个空气温度传感器。 11. The method of modernization of a boiler according to any of claim 7-10, characterized in that the air supply from the atmosphere into the bellows (5) inside the channel (6) in the space, and In the additional air channel (9) in the space provided at least one air temperature sensor.
  12. 12.根据权利要求11所述的现代化改装锅炉的方法,其特征在于,将所述空气温度传感器连接到所述额外空气通道(9)的所述风扇(10)的控制器。 12. The method of modernization boiler according to claim 11, characterized in that said air temperature sensor is connected to the additional air channel (9) of the fan (10) of the controller.
  13. 13. 一种消除未参与在利用加煤机加煤的锅炉中的燃烧过程的空气的不受控制的泄漏的方法,所述锅炉包含燃烧室(2)、可移动的机械加煤机(3)和加煤机下空间(11),所述加煤机下空间包含带有风箱(5)的加煤机下风箱系统(4)以及将空气从大气供应到所述风箱(5)的内部的通道(6),其特征在于,将空气从位于所述加煤机下风箱系统(4)的所述风箱(5)外面的加煤机下空间(11) 引出到具有输出可调节的内置风扇(10)的额外空气通道(9),其中该风扇(10)的当前输出与供应到风箱(5)的空气的温度和在所述额外空气通道(9)中的空气的温度之间的当前差异成比例。 13. A method to eliminate uncontrolled air leakage using stoker stoker boiler combustion process is not participating, said boiler comprising a combustion chamber (2), a movable mechanical stokers (3 ) and processing coal lower space (11), under the stoker stoker space included under the bellows system with bellows (5) (4), and the air is supplied from the atmosphere to the bellows (5) of the Internal The channel (6), characterized in that the air from the stoker is located under the bellows system (4) of the bellows (5) outside under stoker space (11) leads to an output of the built-in adjustable a fan (10) of the additional air channel (9), wherein the fan (10) is supplied to the current output of the bellows (5) and the temperature of the air between the additional air channel (9) of the air temperature The current proportional to the difference.
  14. 14.根据权利要求13所述的消除不受控制的泄漏的方法,其特征在于,将所述被引出到所述额外空气通道(9)的空气供应到所述加煤机下风箱系统(4)的所述风箱(5)。 Elimination of uncontrolled leakage method according to claim 13, characterized in that said additional air is drawn into said passage (9) of the air supplied to the stoker wind boxes system (4 ) of the bellows (5).
  15. 15.根据权利要求13所述的消除不受控制的泄漏的方法,其特征在于,将所述被引出到所述额外空气通道(9)的空气进一步引出到大气。 15. Elimination of uncontrolled leakage method according to claim 13, characterized in that said additional air is drawn into said passage (9) of the air is further drawn to the atmosphere.
  16. 16.根据权利要求13所述的消除不受控制的泄漏的方法,其特征在于,将所述被引出到所述额外空气通道(9)的空气供应到所述燃烧室(2)的所述次级空气通道。 Elimination of uncontrolled leakage 16. The method according to claim 13, characterized in that the lead is supplied to the additional air channel (9) to the air in the combustion chamber (2) secondary air passage.
Description  translated from Chinese

利用加煤机加煤的锅炉,现代化改装利用加煤机加煤的锅炉的方法以及消除未参与利用加煤机加煤的锅炉中的燃烧过程中的空气的不受控制的泄漏的方法 Use stoker stoker boiler modernization plus the use of coal stoker boiler method and was not involved in the elimination of the use of stoker stoker boiler combustion process in uncontrolled air leakage method

技术领域 Technical Field

[0001] 本发明的主体是在燃烧区中包含可移动加煤机和加煤机下风箱系统的利用加煤机加煤的锅炉、现代化改装这种锅炉的方法,以及消除未参与锅炉中的燃烧过程的空气的不受控制的泄漏的方法。 [0001] The subject of the present invention includes a movable use and processing coal stoker wind boxes system stoker stoker boilers, boiler modernization of this approach in the combustion zone, and the elimination was not involved in the boiler Leak uncontrolled air combustion process.

背景技术 Background

[0002] 在商业电力工业和供热工业中,一般使用用于产生热量的利用加煤机加煤的锅炉,其中固体燃料特别是煤的燃烧发生在移动的机械加煤机上。 [0002] In the commercial power industry and heating industry, generally used for generating heat using stoker stoker boiler, wherein the solid fuel especially coal combustion occurs on moving mechanical stokers. 在该加煤机上方有具有次级空气通道的燃烧室,而在加煤机下面有包含具有风箱的加煤机下风箱系统的加煤机下空间,以及将空气从大气提供到风箱内部的通道,其对于在加煤机上发生燃烧过程是必需的。 In the stoker above machine has a combustion chamber having a secondary air passage, and in the stokers below contains at having bellows stoker wind boxes system stoker space, and the air from the air supplied to the bellows inside channel, which the combustion process takes place in the stoker is required. 在锅炉使用期间,在风箱空间中,气压通常达到接近200-500Pa。 During the boiler, the bellows space, the pressure usually reaches close 200-500Pa. 在加煤机下空间的剩余部分中,压力接近燃烧室中的压力,通常达到-30到-50Pa左右。 In the remainder of the space under the stoker, the pressure close to the pressure in the combustion chamber, usually reaches about -30 to -50Pa. 在风箱空间、加煤机下空间和大气之间显露出来的压力差异导致气流的不受控制的泄漏,其流经存在于这些空间之间的间隙,然而锅炉的探查制造并不能保证它完全密封。 Bellows space, revealing the atmosphere between space and stoker out under pressure differences lead to uncontrolled leakage air flow, it flows through a gap exists between these spaces, but exploration manufacture boiler does not guarantee that it is completely sealed . 在利用加煤机加煤的锅炉中密封上述空间,意图消除未参与固体燃料燃烧过程中的空气的不受控制的泄漏,是许多解决方案和尝试的主题。 Sealed in use stoker stoker boilers in the space, it is intended to eliminate uncontrolled leakage of solid fuel combustion air is not involved in the process is that many solutions and try theme. 从波兰专利183654的描述中,可以知道已经借助于金属膜壁密封的利用加煤机加煤的锅炉。 From the Polish patent description 183654 in, you can know already sealed by means of a metal membrane wall using stoker stoker boilers. 在利用加煤机加煤的锅炉中的气流的迁移也可以通过对加煤机下风箱系统的风箱适当成形而受到控制。 Migration stream using stoker stoker boiler can also bellows stoker wind boxes system is controlled by an appropriate molding. 在申请号P-355555的波兰专利中,公开了加煤机下风箱系统的结构的方案的例子,其减少多余气体的比例。 Application No. P-355555 Polish patent discloses an example of the structure of the program stoker wind boxes system, which reduces the proportion of excess gas.

发明内容 DISCLOSURE

[0003] 本发明的目的是减少在利用加煤机加煤的锅炉中的气流的不受控制的流动,这种流动会负面地影响锅炉的性能。 [0003] The object of the present invention is to reduce the use of coal stoker boilers plus uncontrolled air flow, such flows can negatively affect the performance of the boiler.

[0004] 根据本发明的锅炉包含具有次级空气通道的燃烧室、可移动的机械加煤机,包含具有风箱的加煤机下风箱系统的加煤机下空间,以及将空气供应到风箱内部的通道。 [0004] comprising a combustion chamber having a secondary air passage boiler according to the present invention, the movable mechanical stokers, including stoker next space has a bellows stoker wind boxes system, and the air supply to the bellows inside channel. 本发明的关键在于该锅炉包含额外的空气通道,其具有内置的且输出可调节的风扇。 The key of the present invention is that the boiler comprises additional air passage, having a built-in fan and the output can be adjusted. 这个额外的空气通道的一端与位于加煤机下风箱系统的风箱外面的加煤机下空间连接。 One end of the additional air passage connected to the stoker located under the bellows system of bellows out stoker next space.

[0005] 在根据本发明的锅炉的其他实施例中,该额外空气通道的另一端与将外部空气提供给加煤机下风箱系统的风箱的通道的空间连接,或者与大气连接,或者与燃烧室的次级空气通道连接。 [0005] In accordance with other embodiments of the boiler of the present invention, the space and the other end of the additional air passage and the outside air supplied to the stoker wind boxes system of bellows channel or connect with the atmosphere, or the combustion secondary air passage connecting room.

[0006] 在根据本发明的锅炉的另一实施例中,在将空气从大气提供到风箱内部的通道的空间中,以及在所述额外空气通道的空间中,设置至少一个空气温度传感器。 [0006] In the boiler according to another embodiment of the present invention, in the air from the atmosphere is supplied to the interior of the bellows space, and the extra space in the air passage, provided with at least one air temperature sensor. 这些传感器可以被连接到额外空气通道的风扇的控制器上。 These controllers can be connected to additional sensors air passage of the fan.

[0007] 根据本发明的一种现代化改装的方法,在于前面提到的锅炉的所述加煤机下空 [0007] According to one modern method of the present invention is modified, that under the aforementioned boiler stoker empty

4间,其位于加煤机下风箱系统的风箱的外面,与具有内置的输出可调节的风扇的额外空气通道的第一端连接。 4, which is located outside the stoker wind boxes system bellows, connected to the first end having a built-in adjustable fan output additional air passage.

[0008] 在该现代化改装方法的其他实施例中,所述额外空气通道的另一端与将空气提供到加煤机下风箱系统的风箱的通道的空间连接,或者与大气连接,或者与燃烧室的次级空气通道连接。 [0008] In other embodiments of the modernization process, the other end of the additional air passage connected to the air supplied to the stoker wind boxes system bellows channel space, or the connection with the atmosphere, or the combustion chamber secondary air channel connection.

[0009] 在该现代化改装方法的另一实施例中,在将空气从大气提供到风箱内部的通道的空间中,以及在所述额外空气通道的空间中,设置至少一个空气温度传感器。 [0009] In a further modernization of the embodiment of the method, the air from the air supplied to the interior of the bellows space, and additional space in the air passage, provided with at least one air temperature sensor. 这些传感器可以被连接到该额外空气通道的风扇的控制器。 These sensors may be connected to the additional air channel fan controller.

[0010] 根据本发明的消除不受控制的空气泄漏的方法在于,将空气从位于加煤机下风箱系统的风箱外面的锅炉的加煤机下空间引出,引到具有可改变输出的内置风扇的额外空气通道。 [0010] uncontrolled air leakage method is that according to the elimination of the present invention, a stoker in Space bellows air from located stoker wind boxes system outside the boiler leads, lead to having to change the output of the built-in fan Additional air passages. 该风扇的当前的输出与供应到风箱的空气的温度和在所述额外空气通道中的空气的温度之间的当前的差异成比例。 The fan is supplied to the current output of the current proportional to the difference bellows air temperature and the air temperature in the additional air passage between.

[0011] 在所述消除不受控制的空气泄漏的方法的其他实施例中,被引出到额外空气通道的空气或者被供应到加煤机下风箱系统的风箱,或者被进一步引出到大气中,或是被供应到锅炉的燃烧室的次级空气通道。 [0011] In other embodiments of uncontrolled air leakage method according to the elimination of the additional air is drawn into the air passage, or is supplied to the bellows stoker wind boxes system, or is further drawn into the atmosphere, or it is supplied to the combustion chamber of the boiler secondary air passage.

[0012] 本发明减少了通过间隙进来并与燃烧烟气结合的空气的量,从而得到的结果是, 在烟气中的多余空气的比例减小。 [0012] The present invention reduces the gap by the combustion flue gas in and combined with the amount of air, so that the results obtained, the ratio of excess air in the flue gas is reduced. 这使得在烟气中的有形损失减小,其也意味着锅炉性能的提升,通常是大约2%到5%,具体取决于它的技术条件、负荷的改变、燃烧装了的品质, 以及正确的维护和操作。 This makes tangible losses in the flue gas is reduced, which also means that enhance the performance of the boiler, usually from about 2% to 5%, depending on the technical conditions change, the load, the combustion quality installed, and the correct maintenance and operation. 应用本发明还减少了锅炉的部件的电力的消耗近10-20%。 Application of the present invention also reduces the power consumption of boiler components for nearly 10-20%. 由于从锅炉中排出的烟气数量的普遍减少,抽风机的负荷更小,所述额外空气通道的风扇所消耗的能量被风箱通风扇的有限的能量消耗抵消。 Due to a general reduction in the number discharged from the boiler flue gas blower load is smaller, the extra energy consumed by the fan air passage through the bellows is limited energy consumption fan offset. 本发明的一个有益的特征是,对于锅炉的现代化改装所需要的时间也较短,并且这种现代化改装的费用较低,相当于替换加煤机下风箱系统的费用的10%。 An advantageous feature of the present invention is that, for the time required for modernization of the boiler is also shorter, and lower the cost of this modernization, the equivalent of 10% of the replacement stoker wind boxes system costs.

[0013] 未曾预料到的,本发明的基本优势是粉尘排放的显著减少(20-70% ),其对不建立昂贵的静电除尘器(脱尘器)而满足未来的排放标准的要求的可能性给予希望。 [0013] The unexpected, the basic advantages of the present invention is to significantly reduce dust emissions (20-70%), which do not build expensive electrostatic precipitator (dust removal devices) and to meet future emissions standards may of giving hope. 同样未曾预料到的,在使用本发明的锅炉的运行中,一氧化碳(CO)的排放减小了40-80%。 Also unexpected, and in the use of boiler operation of the present invention, carbon monoxide (CO) emissions reduced by 40-80%. 这使得可以不用给锅炉装备次级风扇,减少了对电力的消耗。 This makes it possible to the boiler equipment without secondary fan, reducing the power consumption.

附图说明 Brief Description

[0014] 在附图中示出本发明,呈现的是利用加煤机加煤的锅炉的示意性垂直截面,其中图1示出具有额外空气通道的第一变型的锅炉,图2示出具有该通道的第二变型的锅炉,图3示出具有该通道的第三变型的锅炉。 [0014] In the present invention, shown in the figures, showing the use of added coal stoker boilers schematic vertical sectional view, in which Figure 1 shows a first modification of the boiler with additional air passages, Figure 2 shows with The second variant of the channel boiler, FIG. 3 shows a third modification of the boiler with the channel.

具体实施方式 DETAILED DESCRIPTION

[0015] 典型的利用加煤机加煤的锅炉具有带有烟气抽风机1的烟气区,和燃烧器区。 [0015] A typical use stoker stoker boiler having flue area with smoke exhaust fan 1 and burner area. 在燃烧器区中,有燃烧室2、可移动的机械加煤机3、具有风箱5的加煤机下风箱系统4,以及借助于风箱通风扇7将空气从大气供应到风箱5内部的通道6。 In the burner zone, there is a combustion chamber 2, the movable mechanical stokers 3, with stoker wind boxes system bellows 5 4, as well as by means of a bellows through fan 7 to supply air from the atmosphere to the wind box 5 inside the channel 6. 燃烧室2具有有风扇8提供动力的次级空气通道。 8 combustor 2 has a fan-powered secondary air passage. 根据本发明的锅炉具有额外空气通道9,其具有输出可调节的内置的风扇10。 With an additional air channel 9, which has an adjustable output of the built-in fan 10 according to the present invention the boiler. 额外空气通道9的一端9'与位于所述加煤机下风箱系统4的风箱5外面的加煤机下空间连接,额外空气通道9的另一端9”可以和将外部空气供应到加煤机下风箱系统4的风箱5的通道6的空间连接,或者和大气连接,或者和燃烧室2的次级空气通道连接。通过控制风扇10的输出,来自不受控制的泄漏的空气的适当数量被从加煤机下区域11移走,并通过额外空气通道9被导向选定的位置。可以手动控制风扇10的输出,但是为此目的使用有关知识是有益的,所述有关知识指在从大气将空气提供到风箱5的通道6的空间中的空气温度以及在额外空气通道9的空间中的空气温度。为了这么做,在这些地方至少放置一个空气温度传感器(未在附图中示出)。对于典型的利用加煤机提供动力的锅炉,在通道6中的风箱气流的温度和在额外空气通道9中的气流的温度之间的差不超过5 度则表明通过通道9流动的仅仅是来自不受控制的泄漏到加煤机下空间的空气。在温度上的差异达到5到10度给出的信息是,在所述额外空气通道9中还有来自不受控制的泄漏的空气,该泄漏发生在加煤机3的不再发生燃烧过程或者燃烧过程的程度有限的部分上。在这种情况中,不受控制的泄漏查想燃烧室2的底部部分发生,它们的接收对烟气的有形损失具有积极的效果。在温度中超过10度的差异给出的信息是,在通道9中另外流入了一些来自燃烧室2的烟气,并且未在烟气中造成有形损失。这些依赖性允许通过连接所述温度传感器到风扇控制器而实现风扇10的输出调节的自动化,而借助于这些传感器所测量的温度之间的差异被应用作为控制参数。未曾预料到的,当锅炉具有小的负荷,例如达到额定负载的10-20%时,从间隙来的空气的数量足以进行燃烧过程。在这种情况下,当不可能将通道6从大气隔离开时,风箱通风扇7停止为燃烧过程提供空气而仅仅开始阻止空气从锅炉外流。在大多数情况下,消除通过间隙从烟气流来的空气导致下述情形:烟囱的自然牵引足以保证在燃烧室2中有适当的负压,使得烟气抽风机1的操作无目的性。然而,根据强制规定,没有抽风机1的锅炉运行是不允许的。对这一问题的解决方案可以是在较低压力值(例如在燃烧室2中为-50到-80Pa)下运行,以及限制抽风机1的输出。对于正确使用锅炉来说非常重要的是,向风箱提供空气的通道6的空间与额外空气通道9的空间的连接点。 如果在某点连接导致出现由风扇10供应的大多数空气到达前风箱5的情况的话,则对锅炉的运行不不利的,尤其是在上述温度差异超过10C时,因为这意味着提供了另外的氧含量较低的气流。 One end of the additional air channel 9 9 'connected to located the plus outside 4 bellows 5 coal under the bellows system of stoker at space, additional air passage and the other end 9 of 9 "can be outside air supplied to the stoker Space bellows system 4 5 6 bellows channel connection or connections and atmosphere, and the combustion chamber or the secondary air passage 2 is connected via the control output of the fan 10, an appropriate amount of air leakage from uncontrolled be from stokers lower region 11 is removed, and can be manually control the output of the fan 10 through the additional air channel 9 is directed to selected locations, but the use of knowledge is useful for this purpose, said knowledge means from the atmosphere air is supplied to the wind box 5 of the channel 6 in the space air temperature and the air temperature in the extra space in the air passage 9 in order to do so, where to place in the at least one air temperature sensor (not shown in the drawings) For typical use stoker boiler powered difference in channel 6 bellows stream temperature and humidity in the additional air passage 9 stream does not exceed 5 degrees indicates that the flow through the channel 9 is only From uncontrolled air leakage to Canadian coal under space. Differences in temperature 5-10 degrees reach information given is that the additional air channel 9 as well as uncontrolled air leakage from the, The leak occurred in a limited extent stoker 3 no longer occur during combustion or partial combustion process. In this case, check the want uncontrolled leakage chamber bottom part 2 of occurrence, and their reception of the smoke loss of tangible air of having a positive effect. information exceeds 10 degrees difference in temperature is given in the channel 9, a number of additional flue gas from flowing into the combustion chamber 2, and did not cause physical damage in the flue gas. These dependence allows to connect the temperature sensor to achieve the output fan controller and automatic adjustment of the fan 10, and by means of which the difference between the temperature measured by the sensor is applied as a control parameter. unanticipated, when the boiler has small loads, for example 10-20% of the rated load, the number of air coming from the gap enough for the combustion process. In this case, when the channel 6 is not possible to isolate from the atmosphere, bellows ventilation fan 7 stops supplying air to the combustion process but only the beginning to prevent air from the boiler drain in most cases, eliminate the gap from the flue gas stream by air led to the following circumstances: natural pull of the chimney in the combustion chamber 2 sufficient to ensure that there is appropriate negative pressure, so that the flue gas exhaust fan operation 1 no purpose. However, according to mandatory, no boiler exhaust fan 1 is not allowed. The solution to this problem may be in the lower pressure value (for example, burning Run chamber 2 -50 to -80Pa), the output of the blower and restrictions 1. For the proper use of the boiler is very important that the connection to the bellows to provide air passage 6 and the extra space air passage space 9 point. If the connection at some point lead to the situation before the wind box 5 by a majority of the air supply fan 10 to reach, then not detrimental to the operation of the boiler, especially when said temperature difference exceeds 10 C, because it means Providing additional low oxygen content gas stream. 同样在温度差异超过10C时,同样的气流被指向最后运行的风箱5则正面地影响锅炉运行的参数。 Similarly when the temperature difference exceeds 10 C, the same airflow is directed last run bellows five positive impact on boiler operation parameters. 这与在加煤机的这一股份中的燃烧过程的低强度有关,低强度意思是说在相同时间对氧的需要更小。 This low intensity at the stake stoker in the combustion process is related to low intensity means that at the same time the need for oxygen smaller. 未曾预料到的,通过额外空气通道9将加煤机下空间11 和大气连接并不需要对到应用范围内的锅炉的运行(手动或自动)进行改变。 Unanticipated, additional air passage through 9 under stoker space 11 and the atmospheric connection does not need to run (manual or automatic) of the boiler within the scope of application changes. 当加煤机下空间11与通道6或者燃烧室2的次级空气通道连接,气流的相互作用,尤其是在温度差异超过5C时,改变燃烧过程的现有范围进程,导致需要测量气流并且改变锅炉控制算法。 When the stoker space 11 and the secondary air channel 6 or channel 2 is connected to the combustion chamber, the interaction of air flow, especially when the temperature difference exceeds 5 C, change the existing scope of the process of the combustion process, resulting in the need for airflow measurement and change the boiler control algorithm. 然而,由更低电力消耗、对来自空隙的气流的热量的使用所产生的经济上和生态上的益处,证明了在实现该方案(而非对加煤机下空间11与大气的连接的更简单的控制)中出现的额外的支出是合适的。 However, the lower power consumption, the economic and ecological benefits of airflow from the gap on the use of heat generated, and proved that implement the program (as opposed to under the stoker space 11 is connected with the atmosphere more Additional expenditures simple control) that occur are suitable. 同样未曾预料到的是,应用本发明提供了另外的操作上的好处。 Also unexpected is the application of the present invention provides additional operational benefits. 将从风箱气流分开的第一风箱与加煤机下空间相连接允许锅炉操作者控制下述距离:在加煤机上煤点火点处离滑动门及加煤机结构的前面部分的距离。 Bellows separated from the airflow first bellows and stoker boiler at space connected to allow the operator to control the following distance: distance to the front part of the structure of the sliding door and stoker coal ignition point from the stoker. 类似地,在之前与风箱气流分开以后,将最后的非运行风箱与加煤机下空间相连接减少了从风箱空间到燃烧室的不受控制的泄漏。 Similarly, after the gas stream before parting with the bellows, the lower the final non-operating bellows and stoker space connected to reduce the space from the bellows to the combustion chamber of uncontrolled leakage.

[0016] 根据本发明,可以构造新的锅炉,以及快速地、便宜地且有效地对现有的锅炉进行现代化改装。 [0016] According to the present invention can construct a new boiler, and quickly, cheaply and efficiently the existing boiler modernization. 例如,对普遍使用的WE-10型锅炉进行现代化改装需要安装额外空气通道9, 该通道具有离心型风扇WW0ax-50(由Owent Olkusz制造),其装备有5. 5kff马达,它的转速依靠变频器控制。 For example, the widespread use of WE-10 type boilers modernization need to install additional air channel 9, the channel has a centrifugal type fan WW0ax-50 (manufactured by the Owent Olkusz), which is equipped with 5. 5kff motor, its speed relies on frequency control. 通过手动控制该风扇,获得了供应到锅炉的气流的平均6000m3/h的下降,其中锅炉发在在30-80%。 By manual control of the fan, you get a decline in supply to the boiler airflow average 6000m3 / h, where the boiler made in the 30 to 80%. 在对WR-25型双加煤机锅炉的现代化改装中以相同的风扇控制方式应用两个ffff0ax-50型风扇,得到下述情况:在40-80 %的负载范围内,在烟气中的多余气体系数从2. 0-2. 5水平下降到大约1. 4-1. 7。 In the modernization of the WR-25 twin stoker boiler in the same way the fan control using two ffff0ax-50 type fan, to obtain the following: in the range of 40-80% of the load in the flue gas coefficient of excess gas from 2. 0-2. 5 levels down to about 1. 4-1. 7. 在锅炉之后的燃烧烟气的温度下降了15至20C,在这些烟气流中的灰尘含量下降了20-70%,而一氧化碳(CO)的含量下降了40-80%。 After the boiler combustion flue gas temperature drop between 15 and 20 C, the dust content in the flue gas stream fell 20-70%, and carbon monoxide (CO) content decreased by 40-80%.

Classifications
International ClassificationF23H11/10, F23B30/08
Cooperative ClassificationF23B1/22, F23B30/08, F23H11/10
European ClassificationF23H11/10, F23B1/22, F23B30/08
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Nov 24, 2010C06Publication
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