CN2476733Y - Combustion gas pulse dusting device with safety protection function - Google Patents
Combustion gas pulse dusting device with safety protection function Download PDFInfo
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- CN2476733Y CN2476733Y CN 01207797 CN01207797U CN2476733Y CN 2476733 Y CN2476733 Y CN 2476733Y CN 01207797 CN01207797 CN 01207797 CN 01207797 U CN01207797 U CN 01207797U CN 2476733 Y CN2476733 Y CN 2476733Y
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- protection function
- safety protection
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Abstract
The utility model relates to a combustion gas pulse dusting device with safety protection function applying to the air warm-up machine of the electricity station, coal-saving machine and the hearth ash removing. The device comprises an exit of the flowmeter which is connected with a mixer, a damper and a lighter via a pipe, a temperature sensor connected with the firebox via a pipe, a pressure sensor arranged on the pipe wall of the firebox. The exit of the firebox is connected with the pulse output pipe. The entire manner of connecting is flange connection or weld. The device conquers the problems of system complicating and high cost caused by using compressed air of the prior device. The utility model is characterized in that the structure is simple, safe and credible, having a lasting effect on the boiler device ash cleaning.
Description
The utility model relates to a kind of device applicable to energy power system back-end surfaces removing dust stratification, in particular for the Combustion Gas Pulse Ash Cleaning device with safety protection function of station boiler air preheater, economizer and burner hearth ash disposal.
China's station boiler uses a large amount of high ashes, sulphur coal, cause back-end surfaces serious dust stratification to occur, the less convection heating surface of channel cross-section especially, even can stop up the passage of flue gas, cause heat transfer deterioration, cigarette resistance increase, cigarette temperature rise, thereby boiler efficiency is descended.When stifled ash was serious, Generator Set can only the load down operation.More serious situation is, a large amount of dust stratifications and the grease of precipitation also may cause burning again, and boiler plant is wrecked, and major accident takes place, and influence the security and the reliability of generating set operation.Therefore how to remove the dust stratification of heated surface at the end of boiler effectively, become China's power industry and needed to be resolved hurrily for a long time and fail the important key technical problem of fine solution always.At present, the most frequently used steam soot blowing method tends to make smoke moisture to increase easier dust stratification, corrosion and the obstruction that causes heated surface at the end of boiler both at home and abroad.In addition, methods such as adopting chemistry and mechanical cleaning, compressed air soot-blowing, sound wave ashing is also arranged, but these technology exist or servicing unit is huge, maintenance cost is high, or cost height, effective cycle of operation weak point, or complicated operation, fault rate height, or defective such as dedusting effect is not good enough.
Documents 1: name is called " Gas-pulse Ash-cleaning device ", introduces in the file of the patent No.: ZL 93 2 24560.9, and be a kind of blender, igniter and ash handling equipment that is communicated with combustion chamber, efferent duct by pipeline of comprising.This dedusting effect and economic benefit are all apparently higher than existent method, but this device safety protection function is not perfect, therefore, reliability of operation and security are had certain influence.
The purpose of this utility model is intended to overcome the problem that prior art exists, and in order to enlarge range of application, guarantees that ash handling equipment can move safely and reliably, thereby a kind of Combustion Gas Pulse Ash Cleaning device with safety protection function is provided.
The purpose of this utility model is achieved in that the utility model provides a kind of Combustion Gas Pulse Ash Cleaning device with safety protection function, mainly comprise: blender, igniter, indoor combustion chamber, the impulse wave efferent duct that is equipped with the disturbance device, and be linked in sequence by pipeline; Whole connected mode is that flange connects or welding, it is characterized in that: also be included in the gas pipeline entrance and pacify a gas flowmeter, peace one damper on the pipeline between blender and the igniter, temperature sensor is installed on the pipeline between igniter and the combustion chamber, and the probe of pressure sensor is installed on the tube wall of combustion chamber; The output lead of pressure sensor, temperature sensor is connected with flowmeter; Another termination impulse wave efferent duct of combustion chamber.
Described damper is that end sealing, an end open wide the steel pipe that tube wall is covered with aperture all around, or plectane, and plectane is covered with aperture, and described small aperture is not more than flame-out aperture, and it is long-pending that aperture area summation is not less than pipeline section.Combustion mixture can pass through aperture, but flame can not pass, and guarantees safe operation thereby can suppress tempering.
Be welded with a plurality of jet pipes on the tube wall of described impulse wave efferent duct, jet pipe can be straight tube or bend pipe, also can have the spout of rhombus, ellipse or slit-type on tube wall.
The described indoor disturbance device that is welded in the combustion chamber of disturbance device that is equipped with can be circular ring plate, steel plate bar, pin etc., also can be other device that can strengthen turbulence intensity, can be equidistant installation, also can be that unequal-interval is installed.When adopting the steel plate bar, arrange by screw type or screw feeder type.
Principle of the present utility model is to utilize fuel gas conflagration to produce the pressure pulse wave of certain intensity, acts on repeatedly on the dust stratification surface by the impulse wave efferent duct, thereby dust stratification or black dirt are shot down.Technological process of the present utility model: air and combustible gas enter blender by flowmeter by certain air-fuel ratio, after mixing therein, the aperture by damper flows out along pipeline, is lighted by igniter, enter rapid combustion chamber through pipeline, because the effect of the indoor perturbator spare of conflagration, burning is quickened gradually, produces impulse wave, enter efferent duct, spout ejection from the efferent duct upside acts directly on the heated surface at the end of boiler, exports with the sound wave of strong energy simultaneously.Under the acting in conjunction of impulse wave and sound wave, the dust stratification of heated surface at the end of boiler is eliminated.
Device of the present utility model both can be used for coal burning boiler of power station, also can be used for oil burning boiler, also was applicable to other power boiler simultaneously.The situation that contains corrosive mediums such as HF in flue gas also can be used.This system can use the gaseous fuel various commonly used that comprises hydrogen, acetylene gas, liquefied petroleum gas, coal gas etc.
Advantage of the present utility model is: 1, the utility model is suitable for China power plant existing weaponry and equipment, the low-pressure gas source (station-service burning wind) that can use power plant's routine is as combustion air source, needs with compressed air complex system, cost to be increased and may have problem such as potential safety hazard thereby overcome:
2, have simple in structure, safe and reliable, operating cost is low, maintenance load is few; , remarkable in economical benefits lasting to the boiler plant ash-removal effect;
3, easy to operate, not only possess manual, electronic but also have three retaining functions of automatic operation; And when operation to the device of boiler without any harmful effect; And be easy to promote commercial Application.
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of damper.
Fig. 3 is the longitudinal sectional drawing of combustion chamber.
Fig. 4 is the front view of efferent duct.
Drawing is described as follows: (1) is flow measurement device, and (2) are blender, and (3) are damper, and (4) are igniter, and (5) are pipeline, and (6) are temperature sensor, and (7) are pressure sensor, and (8) are the combustion chamber, and (9) are the impulse wave efferent duct.
Embodiment 1
Manufacture a soot blower by the utility model structure shown in Figure 1, the outlet of flowmeter (1) connects blender (2), damper (3), igniter (4) by pipeline, temperature sensor (6) is connected with combustion chamber (8) order by pipeline (5), the probe of pressure sensor (7) is contained on the tube wall of combustion chamber (8), the outlet of combustion chamber (8) connects impulse wave efferent duct (9), and whole connected mode is that flange connects or welding.
Damper (3) is that the long 100mm of being, a caliber are the steel pipe of Φ 50mm, its surface arrangement aperture, and the aperture is Φ 0.2mm, it is long-pending that aperture area summation is not less than pipeline section, as shown in Figure 2.The inner disturbance device (10) that is welded with 20 circular ring types of equidistantly arranging in combustion chamber (8), the longitudinal profile of combustion chamber is seen Fig. 3, the impulse wave efferent duct is communicated with the outlet in the combustion chamber, Fig. 4 is the front view of impulse wave efferent duct, a plurality of spouts (11) are arranged on the impulse wave efferent duct, spout (11) is the multitube straight tube, and its axis is parallel with the axis of efferent duct (9).
Embodiment 2
The utility model structure is to manufacture a soot blower on the basis of embodiment 1, and wherein the disturbance device that is welded in combustion chamber (8) is to wait the steel plate bar of arranging by screw type; A plurality of spouts (11) are arranged on the wherein said impulse wave efferent duct, and spout (11) is a bend pipe.
Claims (6)
1. Combustion Gas Pulse Ash Cleaning device with safety protection function comprises: blender, igniter, indoor combustion chamber, the impulse wave efferent duct that is equipped with the disturbance device, and be linked in sequence by pipeline; Whole connected mode is that flange connects or welding, it is characterized in that: also be included in the gas pipeline entrance and pacify a gas flowmeter, peace one damper on the pipeline between blender and the igniter, temperature sensor is installed on the pipeline between igniter and the combustion chamber, and the probe of pressure sensor is installed on the inner tubal wall of combustion chamber; The output lead of pressure sensor, temperature sensor is connected with flowmeter; Another termination impulse wave efferent duct of combustion chamber.
2. by the described a kind of Combustion Gas Pulse Ash Cleaning device with safety protection function of claim 1, it is characterized in that: described damper is the steel pipe that end sealing, an end open wide, and is covered with aperture around the tube wall, or plectane, and plectane is covered with aperture.
3. the described a kind of Combustion Gas Pulse Ash Cleaning device of claim 2 with safety protection function, it is characterized in that: the small aperture of opening on the described damper is not more than flame-out aperture, and it is long-pending that aperture area summation is not less than pipeline section.
4. by the described a kind of Combustion Gas Pulse Ash Cleaning device of claim 1, it is characterized in that with safety protection function: the disturbance device in the described indoor combustion chamber that is equipped with the disturbance device be circular ring plate by equidistant layout, or unequal-interval is installed.
5. by claim 1,4 described a kind of Combustion Gas Pulse Ash Cleaning devices with safety protection function, it is characterized in that: the disturbance device in the described indoor combustion chamber that is equipped with the disturbance device is that steel plate bar, pinning are installed by screw type or screw feeder type.
6. by the described a kind of Combustion Gas Pulse Ash Cleaning device with safety protection function of claim 1, it is characterized in that: the spout of described impulse wave efferent duct is rhombus, ellipse or slit-type, perhaps directly welds straight tube or bend pipe on efferent duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01207797 CN2476733Y (en) | 2001-03-26 | 2001-03-26 | Combustion gas pulse dusting device with safety protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01207797 CN2476733Y (en) | 2001-03-26 | 2001-03-26 | Combustion gas pulse dusting device with safety protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2476733Y true CN2476733Y (en) | 2002-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01207797 Expired - Fee Related CN2476733Y (en) | 2001-03-26 | 2001-03-26 | Combustion gas pulse dusting device with safety protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2476733Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846325A (en) * | 2010-06-02 | 2010-09-29 | 中国石油化工集团公司 | Soot blower |
| CN102278764A (en) * | 2010-06-11 | 2011-12-14 | 通用电气公司 | Pulsed detonation cleaning device with multiple folded flow paths |
-
2001
- 2001-03-26 CN CN 01207797 patent/CN2476733Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846325A (en) * | 2010-06-02 | 2010-09-29 | 中国石油化工集团公司 | Soot blower |
| CN101846325B (en) * | 2010-06-02 | 2012-08-22 | 中国石油化工集团公司 | Soot blower |
| CN102278764A (en) * | 2010-06-11 | 2011-12-14 | 通用电气公司 | Pulsed detonation cleaning device with multiple folded flow paths |
| CN102278764B (en) * | 2010-06-11 | 2015-11-25 | Bha阿尔泰尔有限责任公司 | There is the pulsed detonation cleaning device of multiple folded flow paths |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |