CN101307908A - Improved shared thermal explosion pulse soot blower and use method thereof - Google Patents
Improved shared thermal explosion pulse soot blower and use method thereof Download PDFInfo
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- CN101307908A CN101307908A CNA2008101118081A CN200810111808A CN101307908A CN 101307908 A CN101307908 A CN 101307908A CN A2008101118081 A CNA2008101118081 A CN A2008101118081A CN 200810111808 A CN200810111808 A CN 200810111808A CN 101307908 A CN101307908 A CN 101307908A
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- air
- distributor
- formula heat
- valve
- improved shared
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000004071 soot Substances 0.000 title abstract description 15
- 238000004880 explosion Methods 0.000 title abstract description 9
- 239000002737 fuel gas Substances 0.000 claims abstract description 22
- 239000000446 fuel Substances 0.000 claims abstract description 19
- 238000010926 purge Methods 0.000 claims abstract description 6
- 239000008246 gaseous mixture Substances 0.000 claims description 29
- 210000000664 rectum Anatomy 0.000 claims description 10
- 239000007789 gas Substances 0.000 abstract description 12
- 238000007664 blowing Methods 0.000 abstract description 7
- 238000005474 detonation Methods 0.000 abstract description 6
- 238000005496 tempering Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000002360 explosive Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
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Abstract
The invention belongs to the technical field of thermal explosion pulse soot blowing, and particularly relates to an improved shared thermal explosion pulse soot blower and a using method thereof. The improved shared heat explosion pulse soot blower has mainly one air pipeline with switch valve, mixed gas branch pipe connecting the distributor and the pulse generator and with diameter not greater than DN20mm, compressed air as air source, fuel switch valve and air switch valve closed before ignition and air switch valve opened after ignition. The advantages are that: on the premise of not affecting purging and increasing detonation pressure in the mixed gas branch pipe, the shared pulse soot blower overcomes the major defects of high danger, easy tempering, low reliability and the like of the existing shared pulse soot blower, and can effectively reduce the manufacturing cost of the mixed gas branch pipe and greatly save fuel gas.
Description
Technical field
The invention belongs to the heat explosion pulse ash-blowing technical field, be specifically related to a kind of improved shared formula heat exploding pulse sootblower and using method thereof.
Background technology
Heat exploding pulse sootblower is called for short pulse soot blower, have another name called the shock-wave ash blowing device, the shock wave soot blower, weak quick-fried soot blower, blast wave blower, the detonation wave soot blower, pinking pulse soot blower etc., invent by the people of the former Soviet Union the earliest, imported China in 1988 into, develop by " gas big gun ", its basic principle of blowing ash is: the gaseous mixture that makes fuel and oxidant gas with impulse generator that flue is communicated with in light a fire and explode, utilize " the alternation punching press is inhaled and drawn effect " of the compression shock ripple of blast generation, " the purging effect " of " physics effect of micro-explosion " and high-speed pulse jet blown down the various dust stratifications on boiler heating surface and the flue wall, has vibration simultaneously concurrently, three kinds of deashing effects of sound wave and high temperature pyrolysis.Impulse generator claims shock wave generator, surge generator, blast wave generator, detonation wave generator, blast jar, Impulsive tank etc. again; Impulse generator can directly be communicated with flue, also can be communicated with flue by pulse conduit, and pulse conduit claims transmitting tube, jet pipe etc. again.Because belonging to dry type blows ash, and blow that grey intensity height, no dead angle, sphere of action are big, good energy-conserving effect, equipment dependability height, to blow grey expense cheap, has impayable superiority with traditional steam soot blowing ratio, not only be used for heated surface at the end of boiler at large and replaced traditional steam soot blowing, and begin to be used to blow down industrial furnace interior dust stratification and slagging scorification, even also attempted being used for other occasions such as auxiliary deashing of electrostatic precipitator.
The so-called formula heat exploding pulse sootblower of sharing is exactly each impulse generator or impulse generator group are all shared air distributing device by distributor a heat exploding pulse sootblower, for example application number be 2004200045324 utility model patent disclosed be exactly a kind of shared formula heat exploding pulse sootblower.All there is following shortcoming in existing shared formula heat exploding pulse sootblower:
1. on the fuel gas pipeline and air pipe line in air distributing device, for the high-temperature gas that after igniting blast, the most in time blast produced with analyse carbon and purge, simultaneously also for simplified structure and reduce cost, only has magnetic valve on the fuel gas pipeline, fuel gas concentration is crossed low even is had only air and cause miso-fire in the gaseous mixture at when igniting igniter head place like this, generally to light a fire earlier and afterwards close the fuel gas switch valve, this causes blast impulse on the one hand, the high-temperature gas that explosive flame and blast produce passes fuel gas magnetic valve upstream pipeline and fuel gas source transmission in instant of detonation, cause serious potential safety hazard, explosive flame on the other hand, the high-temperature gas that blast produces, combustion explosion produces analyses carbon, and entrained the jar hermetically-sealed construction and the rubber seal that pass the fuel gas magnetic valve interior and the interior dust of pipe of air blast has serious destructive, very easily cause serious interior leakage of fuel magnetic valve service time one for a long time, so that the fuel magnetic valve is difficult to normally cut out, thereby cause leakage type tempering in the very dangerous fuel magnetic valve after outage;
Since carry in each branch road after the distributor be gaseous mixture and reach tens meters to tens meters mostly, flame propagation in the gaseous mixture arm is near confined explosion, thereby reduce dangerous in order to reduce blast pressure, all adopt pressure well below compressed-air actuated air blast as the air source, cause the caliber of air pipe line and gaseous mixture pipeline bigger, not only waste material, and waste fuel gas.
Summary of the invention
The objective of the invention is to: a kind of improved shared formula heat exploding pulse sootblower and using method thereof are provided, can overcome the above-mentioned deficiency of prior art.
Soot blower scheme of the present invention is: improved shared formula heat exploding pulse sootblower, mainly comprise air distributing device, distributor and impulse generator, wherein air distributing device mainly comprises fuel gas pipeline and air pipe line, on fuel gas pipeline and air pipe line, be serially connected with fuel cock valve and air switching valve respectively, be connected by the gaseous mixture pipeline between air distributing device and the distributor, impulse generator then is connected with distributor by the gaseous mixture arm, connect distributor and impulse generator the gaseous mixture arm latus rectum to small part smaller or equal to DN20mm.
What described fuel cock valve and air switching valve preferably adopted is magnetic valve, the latus rectum of described air pipe line preferably also to small part smaller or equal to DN20mm, the latus rectum of described air pipe line and gaseous mixture arm preferably all equals DN15mm.
Method scheme of the present invention is: the using method of above-mentioned improved shared formula heat exploding pulse sootblower, mainly be before igniting, to close earlier fuel cock valve and air switching valve simultaneously, opening air switching valve after igniting immediately, secondly is to adopt compressed air as the air source.
Owing to all be serially connected with switch valve on fuel gas pipeline in the distribution igniter and the air pipe line, and close fuel cock valve and air switching valve simultaneously at igniter, high-temperature gas that blast pressure, explosive flame, blast produce and explosive combustion produce analyses carbon and the entrained dust of air blast just is difficult to pass fuel cock valve upstream fuel gas pipeline and fuels sources transmission, also be difficult to the structure and the seal of fuel cock valve (comprising that the fuel cock valve adopts the situation of magnetic valve) are caused damage, thereby can overcome aforementioned article one deficiency of prior art; Because owing to adopt compressed air as the air source, the air supply gas pressure is far longer than the air blast air blast, the caliber of gaseous mixture arm fully can be smaller or equal to DN20, be significantly smaller than the DN50 that prior art generally adopts, Zhi Guanyong material and the gaseous mixture that flame propagation consumed also are significantly less than prior art, thereby have overcome the aforementioned second deficiency of prior art; Owing to all be serially connected with switch valve on fuel gas pipeline in the distribution igniter and the air pipe line, and elder generation closes fuel cock valve and air switching valve simultaneously before igniting, the big pressure that then causes owing to caliber is tiny in the gaseous mixture arm also unloads after closing air switching valve and fuel gas switch valve fully and is kept to normal pressure or little negative pressure, thereby can not cause in the gaseous mixture arm detonation pressure too high at the explosion time of lighting a fire.
The advantage of heat exploding pulse sootblower of the present invention and using method thereof is: in time purge, do not increase under the prerequisite of detonation pressure in the gaseous mixture arm not influencing the high-temperature gas that blast is produced and analyse carbon, not only overcome and existing shared significant deficiency such as dangerous big, the easily tempering of formula heat exploding pulse sootblower, reliability be low, and can reduce the cost of gaseous mixture arm and fuel saving gas significantly effectively.
Description of drawings
Below in conjunction with accompanying drawing, the present invention is provided further instruction by specific embodiment.
Accompanying drawing 1 is the schematic diagram of the shared formula heat exploding pulse sootblower of the embodiment of the invention 1;
Among the figure: 1. fuel gas pipeline, 2. air pipe line, 3. fuel cock valve, 4. air switching valve, 5. gaseous mixture pipeline, 6. distributor, 7,8,9,10. gaseous mixture arm, 11. impulse generator, 12,13,14. impulse generator groups, 15. air distributing devices, 16. air compression stations, 17. blender, 18. igniter head.
The specific embodiment
Embodiment 1:
Present embodiment is to the further specifying of heat exploding pulse sootblower of the present invention, and also is further specifying its using method.As shown in Figure 1, pulse soot blower mainly comprises air distributing device 15, distributor 6, impulse generator 11 and impulse generator group 12,13,14; Be connected by gaseous mixture pipeline 5 between air distributing device 15 and the distributor 6, impulse generator 11 is connected with distributor 6 by gaseous mixture arm 7,8,9,10 respectively with impulse generator group 12,13,14; Have fuel gas pipeline 1 and air pipe line 2 in air distributing device 15, its latus rectum all is DN15mm, is serially connected with the identical electrical ball valve 3,4 of specifications and models on fuel gas pipeline 1 and air pipe line 2 respectively, and air pipe line 2 also is connected with air compression station 16; The latus rectum of gaseous mixture arm 7,8,9,10 all is DN15mm; What distributor 6 adopted is to distribute header, and igniter head 18 also is housed on it.
When blowing grey operation, open the valve of a certain gaseous mixture arm on the distributor 6 earlier and guarantee that the valve of other gaseous mixture arm is in closed condition, then opening electrical ball valve 3,4 simultaneously inflates for certain or certain group pulse generator, after reaching requirement, aeration quantity closes electrical ball valve 3,4 simultaneously, igniter head igniting blasting gaseous mixture then, and after igniting, open air electrical ball valve 4 immediately and purge.
Embodiment 2:
As shown in Figure 2, present embodiment is substantially the same manner as Example 1, and difference is: what fuel cock valve 3 and air switching valve 4 adopted is duplex magnetic valve group; Air distributing device also comprises the blender 17 that is serially connected on the gaseous mixture pipeline 5; Igniter head 18 is installed in the end of blender 17; What distributor 6 adopted is rotary distributor; The latus rectum of air pipe line and gaseous mixture arm all is DN20mm.
Claims (9)
1. improved shared formula heat exploding pulse sootblower, mainly comprise air distributing device (15), distributor (6), and impulse generator (11,12,13,14), wherein air distributing device (15) mainly comprises fuel gas pipeline (1) and air pipe line (2), be serially connected with fuel cock valve (3) at fuel gas pipeline (1), be connected by gaseous mixture pipeline (5) between air distributing device (15) and the distributor (6), impulse generator (11,12,13,14) then by gaseous mixture arm (7,8,9,10) be connected with distributor (6), it is characterized in that: be serially connected with air switching valve (4) on the air pipe line (2), connect distributor (6) and impulse generator (11,12,13,14) gaseous mixture arm (7,8,9,10) latus rectum to small part smaller or equal to DN20mm.
2. improved shared formula heat exploding pulse sootblower according to claim 1 is characterized in that: the latus rectum of described air pipe line (2) to small part smaller or equal to DN20mm.
3. according to claim 1 and 2 described improved shared formula heat exploding pulse sootblowers, it is characterized in that: the latus rectum of described gaseous mixture arm (7,8,9,10) and air pipe line (2) is all smaller or equal to DN20mm.
4. improved shared formula heat exploding pulse sootblower according to claim 3, it is characterized in that: described latus rectum all equals DN15mm.
5. improved shared formula heat exploding pulse sootblower according to claim 1 is characterized in that: what described fuel gas switch valve (3) and air switching valve (4) adopted all is magnetic valve.
6. improved shared formula heat exploding pulse sootblower according to claim 1 is characterized in that: what described fuel gas switch valve (3) and air switching valve (4) adopted all is electrical ball valve.
7. improved shared formula heat exploding pulse sootblower according to claim 1 is characterized in that: what described distributor (6) adopted is to distribute header.
8. improved shared formula heat exploding pulse sootblower according to claim 1 is characterized in that: what described distributor (6) adopted is rotary distributor.
9. the using method of improved shared formula heat exploding pulse sootblower according to claim 1, it is characterized in that: adopt compressed air as the air source, earlier close fuel cock valve (3) and air switching valve (4) simultaneously before igniting, the upright air switching valve (4) of opening purges after igniting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101118081A CN101307908A (en) | 2008-05-19 | 2008-05-19 | Improved shared thermal explosion pulse soot blower and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101118081A CN101307908A (en) | 2008-05-19 | 2008-05-19 | Improved shared thermal explosion pulse soot blower and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101307908A true CN101307908A (en) | 2008-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101118081A Pending CN101307908A (en) | 2008-05-19 | 2008-05-19 | Improved shared thermal explosion pulse soot blower and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101307908A (en) |
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2008
- 2008-05-19 CN CNA2008101118081A patent/CN101307908A/en active Pending
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Open date: 20081119 |