CN203116042U - On-line impact ash removing device of single superimposed boiler - Google Patents
On-line impact ash removing device of single superimposed boiler Download PDFInfo
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- CN203116042U CN203116042U CN 201220736374 CN201220736374U CN203116042U CN 203116042 U CN203116042 U CN 203116042U CN 201220736374 CN201220736374 CN 201220736374 CN 201220736374 U CN201220736374 U CN 201220736374U CN 203116042 U CN203116042 U CN 203116042U
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- boiler
- wave generator
- impact wave
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Abstract
The utility model belongs to the field of ash removing devices, and in particular relates to an on-line ash removing device of a boiler. An on-line impact ash removing device of a single superimposed boiler comprises two parts of an impact wave generator and an impact wave jet device, wherein an air inlet pipe of the impact wave generator is communicated with a compressed air tank; a control valve is assembled on the impact wave generator; the control end of the control valve is connected with a programming controller; the impact wave jet ports of the impact wave generator are communicated with the impact wave jet device through a plurality of impact wave branch pipelines; and the lengths of all the impact wave branch pipelines are different. The impact wave generator can generate multiple impacts to remove ash at one start, so that an ash removing effect is improved; large angles are formed between the jet ports and the horizontal line, the jet directions of the jet port are close to a boiler wall, and boundary waves are reflected by the boiler wall to oscillate; and a pneumatic stepping rotary spray nozzle does not need a drive motor, is designed in a pure pneumatic mode, operates reliably and can effectively remove various accumulated soot or coke on a heating surface.
Description
Technical field
The utility model belongs to field of dust, particularly relates to a kind of boiler online ash removal device.
Background technology
Convection section finned tube dust stratification can directly cause exhaust gas temperature to raise in the boiler, 10～15 ℃ of the warm every risings of discharging fume, boiler thermal output descends 1%, behind the each thoroughly deashing of boiler, general exhaust gas temperature can drop to below 200 ℃, in boiler operatiopn as fuel, atomizing, the air distribution imbalance can cause boiler " over-emitting black exhaust " to aggravate the boiler cigarette temperature rate of climb, boiler convection section deashing generally manually carries out under blowing out cold conditions state, after opening stove, the cigarette temperature rises day by day and can't the on-line implement deashing, can cause waste of fuel, oily vapour unit consumption rises, so need a kind of device that can online ash removal.
Present online ash removal device is divided into three kinds, steam dust remover, acoustic wave soot blower and gas shock-wave dust remover.
Steam dust remover operation principle is to utilize steam, superheated steam with certain pressure to be blowing medium, the tubulose of the long number rice of, rotation scalable by purges rifle and puts in the middle of the convection section finned tube, directly purges dust stratification on the heating surface with steam or superheated steam.The major defect of this kind pattern dust remover is that Mechanical Reliability is poor, deashing just has a large amount of mechanical parts wearing and tearing after often experiencing a period of time operation, damages, failure mode is generally stuck, bite, the result is not that dust remover can not cause boiler thermal output to descend by bringing normally into operation, be exactly because purge with the high steam long-time continuous, high steam carries dust erosive wear heating surface tube wall, cause the boiler pipe explosion accident, and because this type dust remover is to utilize high steam to purge working method continuously, the energy consumption of equipment itself is very big.
Acoustic wave soot blower refers to utilize the effect of sound field energy, removes the method for boiler heat-exchanger superficial dust and coking, and this kind dust remover acoustic energy of maximum at present only can reach 150 decibels, and the energy intensity deficiency is very limited to the scavenging action of dust stratification.
The gas shock-wave dust remover mainly be with fuel gas (acetylene, natural gas, oil gas is useful fuel-oil atmozation also) with air with certain proportion in the gaseous mixture in-tank mixing, after lighting a fire, produce detonation, impact the mouth of pipe at front end and produce shock wave, utilize shock wave that heating surface is purged.This dust remover because of working media be fuel gas, and the interior cigarette Wen Wendu of each section flue is very high in the boiler, fuel gas enters burner hearth without igniting or flue can cause tempering detonation or cause the bursting of boilers, so can only be used for low-temperature zone, range of application has significant limitation.
The shock wave generator startup once can only produce one shock wave in these above impact class deashing devices, and ash-removal effect is limited.
Summary of the invention
Technical problem to be solved in the utility model provides the online impact deashing device of a kind of single eclipsed form boiler, makes the shock wave generator one-shot can produce multiple shock wave deashing by many different shock wave bye-passes of length, has improved ash-removal effect.
The online impact deashing device of a kind of single eclipsed form boiler, constituted by shock wave generator and shock wave injection apparatus two parts, the air inlet pipe of described shock wave generator is communicated with compressed air reservoir, control valve is housed on the shock wave generator, the control end of control valve is connected with cyclelog, the shock wave spout of described shock wave generator is communicated with the shock wave injection apparatus by some shock wave bye-passes, and the length of every shock wave bye-pass has nothing in common with each other.
Described control valve is single control magnetic valve.
Described shock wave bye-pass has three, and shock wave generator starts once makes the shock wave injection apparatus spray three road shock waves.
Described shock wave injection apparatus is pneumatic stepping rotary nozzle, and the control mouth of described pneumatic stepping rotary nozzle is communicated with shock wave generator by wireway.
Described pneumatic stepping rotary nozzle single step stepping angle is 45 °
The axis of the spout of described shock wave generator and horizontal angle are 65 °～75 °.
Shock wave generator one-shot in the online impact deashing device of the utility model single eclipsed form boiler can produce multiple shock wave deashing, has improved ash-removal effect; Spout and horizontal line are the wide-angle setting, and injection direction is adjacent to the furnace wall, and boundary wave can vibration occur in the furnace wall reflection; Pneumatic stepping rotary nozzle need not drive motors, for pure air-driven type design, moves very reliable.This device has utilized shock wave, strong acoustic energy, the comprehensive function of high velocity air kinetic energy in dust stratification to greatest extent, destroys the stable state of dust stratification, reaches the purpose of cleaning heating surface, can effectively remove various dissimilar dust stratifications or coking on the heating surface.
Description of drawings
Fig. 1 is the online impact deashing device of the utility model single eclipsed form boiler structural representation.
Among the figure: 1 compressed air reservoir, 2 shock wave generators, 3 control valves, 4 bellowss, 5 shock wave injection apparatus, 51 spouts, 6 furnace walls, 7 linings, 8 flanges.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only are used for explanation the utility model and are not used in the scope of the present utility model that limits.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in Figure 1, the online impact deashing device of a kind of single eclipsed form boiler, constituted by shock wave generator 2 and shock wave injection apparatus 5 two parts, the air inlet pipe of described shock wave generator 2 is communicated with compressed air reservoir 1, control valve 3 is housed on the shock wave generator 2, described control valve 3 is single control magnetic valve in the present embodiment, the control end of control valve 3 is connected with cyclelog, the shock wave spout of described shock wave generator 2 is communicated with shock wave injection apparatus 5 by some shock wave bye-passes 4, and the length of every shock wave bye-pass 4 has nothing in common with each other; Perforate on furnace wall 6 during installation, the shower nozzle 51 with shock wave injection apparatus 5 inserts in the hole with back, lining 7 location by fixing the getting final product of flange 8 welding then.
When starting the deashing operation, because the shock wave that shock wave generator 2 produces can arrive shock wave injection apparatus 5 from each different bar shock wave bye-pass 4 of length, so the time that shock wave arrives has successively, makes shock wave generator 2 one-shots can produce multiple shock wave deashing; In the present embodiment, described shock wave bye-pass 4 has three, and shock wave generator 2 starts once makes shock wave injection apparatus 5 ejections three road shock waves.
In the utility model, in order to increase effective deashing sphere of action of deashing device, described shock wave injection apparatus 5 is selected pneumatic stepping rotary nozzle for use, the control mouth of described pneumatic stepping rotary nozzle is communicated with shock wave generator 2 by wireway, spout 51 can rotate around the stepping of shower nozzle axis with shock wave pulse each time, enlarge dust remover and purged spatial dimension, the pneumatic stepping rotary nozzle single step stepping angle of selecting for use in the present embodiment is 45 °, and 8 subpulses can promote pneumatic stepping rotary nozzle and rotate a circle.
Of particular note, the axis of the spout 51 of described shock wave generator 2 and horizontal angle are 65 °～75 °, the purpose that this kind wide-angle is set is can be in the furnace wall 6 to reflect for the boundary wave that makes the shock wave that spout 51 launches, the effect of the resonance that superposes out, the ability of enhancing deashing.
Claims (6)
1. online impact deashing device of single eclipsed form boiler, constituted by shock wave generator (2) and shock wave injection apparatus (5) two parts, the air inlet pipe of described shock wave generator (2) is communicated with compressed air reservoir (1), control valve (3) is housed on the shock wave generator (2), the control end of control valve (3) is connected with cyclelog, it is characterized in that: the shock wave spout of described shock wave generator (2) is communicated with shock wave injection apparatus (5) by some shock wave bye-passes (4), and the length of every shock wave bye-pass (4) has nothing in common with each other.
2. the online impact deashing device of single eclipsed form boiler as claimed in claim 1 is characterized in that: described control valve (3) is single control magnetic valve.
3. the online impact deashing device of single eclipsed form boiler as claimed in claim 1, it is characterized in that: described shock wave bye-pass (4) has three, and shock wave generator (2) starts once makes shock wave injection apparatus (5) ejection three road shock waves.
4. the online impact deashing device of single eclipsed form boiler as claimed in claim 1, it is characterized in that: described shock wave injection apparatus (5) is pneumatic stepping rotary nozzle, and the control mouth of described pneumatic stepping rotary nozzle is communicated with shock wave generator (2) by wireway.
5. the online impact deashing device of single eclipsed form boiler as claimed in claim 4, it is characterized in that: described pneumatic stepping rotary nozzle single step stepping angle is 45 °.
6. as the online impact deashing device of the described single eclipsed form of any claim boiler in the claim 1～5, it is characterized in that: the axis of the spout (51) of described shock wave generator (2) and horizontal angle are 65 °～75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736374 CN203116042U (en) | 2012-12-15 | 2012-12-15 | On-line impact ash removing device of single superimposed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736374 CN203116042U (en) | 2012-12-15 | 2012-12-15 | On-line impact ash removing device of single superimposed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203116042U true CN203116042U (en) | 2013-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220736374 Expired - Fee Related CN203116042U (en) | 2012-12-15 | 2012-12-15 | On-line impact ash removing device of single superimposed boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN203116042U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047665A (en) * | 2012-12-15 | 2013-04-17 | 慈溪市观海卫镇鸿轩汽车修理店 | Single-pass overlapping online impact wave dedusting device for boilers |
-
2012
- 2012-12-15 CN CN 201220736374 patent/CN203116042U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047665A (en) * | 2012-12-15 | 2013-04-17 | 慈溪市观海卫镇鸿轩汽车修理店 | Single-pass overlapping online impact wave dedusting device for boilers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20131215 |