CN206973595U - Ash ejector of air shock wave with playpipe - Google Patents
Ash ejector of air shock wave with playpipe Download PDFInfo
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- CN206973595U CN206973595U CN201720119290.0U CN201720119290U CN206973595U CN 206973595 U CN206973595 U CN 206973595U CN 201720119290 U CN201720119290 U CN 201720119290U CN 206973595 U CN206973595 U CN 206973595U
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Abstract
The utility model discloses a kind of ash ejector of air shock wave with playpipe, including electric cabinet, ball valve, Pneumatic controlled box, shock wave generator and the rotary nozzle being arranged on furnace wall；The gas outlet of the ball valve connects the air intake of Pneumatic controlled box and the gas outlet of shock wave generator by gas pipeline respectively；The gas outlet of the Pneumatic controlled box connects the air intake of shock wave generator by gas pipeline；The gas outlet connection rotary nozzle of the shock wave generator, the shock wave generator is interior to be provided with playpipe；The jet end of the rotary nozzle is arranged in furnace wall；The rotary nozzle includes outer tube and inner tube, one end of said inner tube is jet end, the other end of said inner tube is provided with the rotating shaft set along inner tube axle center, and the rotating shaft is connected with the cylinder of drive shaft rotation, and the air intake of the cylinder connects the gas outlet of Pneumatic controlled box by gas pipeline；The input connection power supply of the electric cabinet, the output end of the electric cabinet is by controlling cable to connect shock wave generator and Pneumatic controlled box respectively.
Description
Technical field
It the utility model is related to heat exchanger ash removing equipment field, particularly a kind of ash ejector of air shock wave with playpipe.
Background technology
Boiler has heating surface during long-term use, can accumulate a large amount of dust granules, loose material, binding and deposition
Thing, so that boiler tail exhaust gas temperature raises, reduce boiler thermal output.
Traditional removing ash of boiler, gas shock-wave soot blower often is used, it is to utilize acetylene (coal gas, natural gas, liquefied gas)
Etc. conventional fuel gas and air, after respective flow measuring and controlling system, uniformly mixed, be then fed into by a certain percentage
Pulse-combustion in combustion chamber.Different with the combustion process and combustion system of routine, gas impulse burning is using unstable
Burning gases produce compressional wave under high turbulence state, form kinetic energy, acoustic energy, heat energy.This burning velocity is very fast, burning production
Within the scope of raw gas pressure is limited in necessarily, fitted in nozzle launching shock wave energy and the dust stratification situation of efferent duct
Should.The dust stratification on heating surface is come off by the effect of shock wave, by the dust granule on contaminated heating surface, loose material, glue
Compound and deposit remove, and reaching reduces boiler tail exhaust gas temperature, improve boiler thermal output.
But using gas shock-wave soot blower, there are the following problems：
1st, high directivity, there is ash disposal dead angle.
2nd, fuel is high using acetylene, operating cost.
3rd, using combustion gas（Acetylene, gas）, as combustion explosion source of the gas, potential safety hazard be present.
4th, SHOCK ENERGY is uncontrollable, and destruction is impacted to furnace wall.
5th, gas proportioning changes, and miso-fire phenomenon be present, and the stability of a system is poor.
Utility model content
Based on this, in view of the above-mentioned problems, being necessary to propose a kind of ash ejector of air shock wave with playpipe, the air shock wave
Soot blower is not burnt, exploded as source of the gas as source of the gas, such as air, nitrogen equistability gas using compressed gas
Safe to use etc. violent chemical reaction, dedusting effect is good, and except Transitional Space is without dead angle, and shock strength can control.
The technical solution of the utility model is：A kind of ash ejector of air shock wave with playpipe, including electric cabinet, ball valve,
Pneumatic controlled box, shock wave generator and the rotary nozzle being arranged on furnace wall；The gas outlet of the ball valve is connected by gas pipeline respectively
Connect the air intake of Pneumatic controlled box and the gas outlet of shock wave generator；The gas outlet of the Pneumatic controlled box connects shock wave by gas pipeline and sent out
The air intake of raw device；The gas outlet connection rotary nozzle of the shock wave generator, the shock wave generator is interior to be provided with playpipe, institute
The outlet side of playpipe is stated towards the gas outlet of shock wave generator；The jet end of the rotary nozzle is arranged in furnace wall；It is described
Rotary nozzle includes outer tube and inner tube, and one end of said inner tube is jet end, is sealed between the jet end and outer tube of said inner tube,
The other end of said inner tube is provided with the rotating shaft set along inner tube axle center, and the rotating shaft is connected with the cylinder of drive shaft rotation, institute
The air intake for stating cylinder connects the gas outlet of Pneumatic controlled box by gas pipeline, is sealed between the rotating shaft and outer tube；It is described automatically controlled
The input connection power supply of case, the output end of the electric cabinet is by controlling cable to connect shock wave generator and Pneumatic controlled box respectively.
The gas of certain pressure（Compressed air）100 millis are more than by shock wave generator each pulses generation duration
Second, intensity are up to 3-5 Mach（Shock strength in jet pipe pipe）Shock wave, plus with caused strong acoustic energy, high speed gas
The impact kinetic energy of body, the cleaning effect of air-flow, collective effect, can be effective on the dust stratification layer of boiler heating surface or on coking layer
Removing boiler heating surface on various types of dust stratification or coking.
After cylinder tube inner plane normal shock wave goes out spout, spheric shock can be formed, spheric shock diameter constantly increases, its centre of sphere
Travelled forward along spout axis, while as the increase of spheric shock diameter, shock strength are constantly decayed, it is sound finally to weaken
Ripple.In the confined space of boiler flue, shock wave can produce reflection, refraction because of the wall of flue four, and shock wave produces in heating surface tube interfascicular
Raw transmission, refraction, reflection, in the space of limitation, the useful effect space of shock wave can be than the increase in free-space field.Shock wave
It can reflect, and can be imported by refraction inside dust stratification in the physical interface of dust stratification and substrate, the violent pressure of shock wave is indulged
Ripple produces a kind of effect for first pressing post-tensioning to dust stratification, ruptures dust stratification, and the refraction shock wave imported in dust stratification can also produce in grey body
The raw shear wave of production, and incidence involve reflection interaction, dust stratification is departed from substrate.
Simultaneously in spout because shock wave and high velocity air impact, extremely powerful spout noise is produced, at 1 meter away from spout,
The sound intensity is 160-170 decibels.Sound wave is a kind of with mechanical wave existing for form of energy, and it shows as vibrating, disturb and fluctuating, sound
The fierce and fast-changing vibration of ripple, the sound intensity reach to a certain degree（155 decibels of ＞）Afterwards, can be to dust deposition in heating surface
Attachment state produce separation effect, and dust stratification, coking is produced fatigue fracture and broken tendency.The compression that spout ejects is empty
Gas reach heating surface tube wall after, to black dirt layer accompanying thereon, coking surface temperature produce dramatic impact, break black dirt layer,
Temperature alternating occurs for the original temperature equilibrium of coking, black dirt layer, coking surface temperature, and black dirt layer, coking produce heat fatigue,
Make black dirt layer, coking generation fragmentation, come off tendency.
After the gas outlet of shock wave generator connects source of the gas, when not having shock wave, shock wave generator gas outlet can be kept
Malleation, prevent dust from entering shock wave generator, result in blockage.
Spout after shock wave with ejecting high velocity air（The speed ＞ velocities of sound）, direct projection, refraction and reflected gas stream kinetic energy are directly made
For dust stratification, coking layer, make to be attached to the dust stratification on heating surface surface, coking because being acted on directly disengaging by air-flow mechanical external force.
The first half of playpipe be from large to small to middle shrinkage to a narrow larynx, the jet pipe after narrow larynx it is latter half of and by
Small change expands outwardly greatly.Gas moves backward by jet pipe, into playpipe first half when, in this stage, air motion
The principle of " when fluid moves in pipe, the small place's flow velocity in section is big, and section general goal flow velocity is small " is followed, therefore air-flow constantly accelerates.
When reaching narrow larynx, flow velocity has been over velocity of sound.And transonic fluid no longer follows " the small place's flow velocity in section in motion
Greatly, general goal flow velocity in section is small " principle, but on the contrary, section is bigger, flow velocity is faster.In the latter half of of playpipe, air-flow
Speed be further accelerated, this creates the terminal huge thrust.Playpipe actually serves one " flow velocity enhancer "
Effect, air-flow is accelerated, makes the energy of shock wave bigger, the effect of soot blowing is more preferable.
The inner tube of rotary nozzle is rotatable under the drive of cylinder, so as to adjust the angle of spout, make soot blowing angle and
Scope is more flexible, and soot blowing face is wider.
Preferably, air cleaner pressure-reducing valve and magnetic valve are provided with described Pneumatic controlled box, the Pneumatic controlled box enters gas
Mouth, air cleaner pressure-reducing valve, magnetic valve, the gas outlet of Pneumatic controlled box pass sequentially through the connection of high pressure gas pipeline road.
Preferably, the high pressure gas pipeline road of the air intake of the Pneumatic controlled box is provided with loose joint.
Loose joint is easier dismounting, and renewal part is also convenient for, and reduces equipment installation maintenance cost.
Preferably, the high pressure gas pipeline road of the Pneumatic controlled box gas outlet is provided with pressure gauge.
Pressure gauge is available for operating personnel to understand equipment operation condition, convenient use and maintained equipment.
Preferably, be also arranged with the flange sleeve for rotary nozzle being installed on furnace wall on described rotary nozzle.
Flange sleeve causes dismounting of the rotary nozzle on furnace wall all to become convenient.
The beneficial effects of the utility model are：
1st, apply on boiler heating surface, heat exchanger heat exchange efficiency can be improved, belong to energy-saving equipment, exhaust gas temperature often drops
Low 10 degrees Celsius, boiler efficiency improves 1%；
2nd, apply on garbage fired boiler, biomass boiler, can improve more than one times of the equipment cycle of operation, increase is economical
Benefit；
3rd, because of controllable shock strength, can apply on SCR denitration reactor, it is small to catalyst breakage, moreover it is possible to
Remove toughness ash, thick-layer dust stratification.Make up the deficiency of wide variety of steam sootblower and acoustic wave ash ejector on SCR reactors；
4th, dedusting effect is good, except Transitional Space is without dead angle；
5th, system nature's safety, energy mostly come from compressed air or dry steam, without using fuel gas, without electricity
Machine, noise is not produced, relieve potential safety hazard, particularly swashed under the inflammable and explosive environment such as some petroleum and petrochemical industry chemical industry using combustion gas
The potential safety hazard of ripple ash handling equipment；
6th, source of the gas is quoted convenient, it is not necessary to source of the gas is separately configured.Existing compressed air and compressed nitrogen can be used.It is right
Bleed pressure requires low.High pressure can be depressured by voltage-stabilizing voltage regulator and be used, and low pressure can be pressurized by booster pump and be used；
7th, operating cost is low, compared with gas shock-wave soot blower, because using compressed gas merely, gathers materials on the spot conveniently,
Single shock wave release ash disposal cost is the 1/9 of combustion gas；
8th, automaticity is high, temporally pattern can start ash disposal, can also start ash disposal by air pressure pattern, also
Can according to boiler operating parameter pattern start ash disposal, both can singly in pattern startup, can be started with integrated mode.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Reference：10- electric cabinets, 20- ball valves, 30- Pneumatic controlled boxes, 31- air cleaner pressure-reducing valves, 32- magnetic valves,
33- loose joints, 40- shock wave generators, 50- cylinders, 60- outer tubes, 61- inner tubes, 62- rotating shafts, 63- flange sleeves, 70- pressure gauges,
80- playpipes, 90- furnace walls.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
Embodiment
As shown in figure 1, a kind of ash ejector of air shock wave with playpipe, including electric cabinet 10, ball valve 20, Pneumatic controlled box 30,
Shock wave generator 40 and the rotary nozzle being arranged on furnace wall 90；The gas outlet of the ball valve 20 is connected by gas pipeline respectively
The air intake of Pneumatic controlled box 30 and the gas outlet of shock wave generator 40；The gas outlet of the Pneumatic controlled box 30 is connected by gas pipeline swashs
The air intake of wave producer 40；The gas outlet of the shock wave generator 40 connects rotary nozzle, is set in the shock wave generator 40
There is a playpipe 80, the outlet side of the playpipe 80 is towards the gas outlet of shock wave generator 40；The jet end of the rotary nozzle
It is arranged in furnace wall 90；The rotary nozzle includes outer tube 60 and inner tube 61, and one end of said inner tube 61 is jet end, described interior
Being sealed between the jet end and outer tube 60 of pipe 61, the other end of said inner tube 61 is provided with the rotating shaft 62 set along the axle center of inner tube 61,
The rotating shaft 62 is connected with the cylinder 50 of the rotation of drive shaft 62, and the air intake of the cylinder 50 connects gas control by gas pipeline
The gas outlet of case 30, sealed between the rotating shaft 62 and outer tube 60；The input connection power supply of the electric cabinet 30, it is described automatically controlled
The output end of case 30 is by controlling cable to connect shock wave generator 40 and Pneumatic controlled box 30 respectively.
In one of the embodiments, air cleaner pressure-reducing valve 31 and magnetic valve are provided with described Pneumatic controlled box 30
32, the air intake of the Pneumatic controlled box 30, air cleaner pressure-reducing valve 31, magnetic valve 32, the gas outlet of Pneumatic controlled box 30 pass sequentially through
High pressure gas pipeline road connects.
In one of the embodiments, the high pressure gas pipeline road of the air intake of the Pneumatic controlled box 30 is provided with loose joint 33.
In one of the embodiments, the high pressure gas pipeline road of the gas outlet of Pneumatic controlled box 30 is provided with pressure gauge 70.
In one of the embodiments, also it is arranged with described rotary nozzle for rotary nozzle to be installed on into furnace wall 90
On flange sleeve 63.
Embodiment described above only expresses specific embodiment of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to the utility model patent scope.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.
Claims (4)
1. a kind of ash ejector of air shock wave with playpipe, it is characterised in that occur including electric cabinet, ball valve, Pneumatic controlled box, shock wave
Device and the rotary nozzle being arranged on furnace wall；The gas outlet of the ball valve connects the air intake of Pneumatic controlled box by gas pipeline respectively
With the gas outlet of shock wave generator；The gas outlet of the Pneumatic controlled box connects the air intake of shock wave generator by gas pipeline；Institute
The gas outlet connection rotary nozzle of shock wave generator is stated, playpipe, the outlet of the playpipe are provided with the shock wave generator
Hold towards the gas outlet of shock wave generator；The jet end of the rotary nozzle is arranged in furnace wall；The rotary nozzle includes outer
Pipe and inner tube, one end of said inner tube is jet end, is sealed between the jet end and outer tube of said inner tube, said inner tube it is another
End is provided with the rotating shaft set along inner tube axle center, and the rotating shaft is connected with the cylinder of drive shaft rotation, the air intake of the cylinder
The gas outlet of Pneumatic controlled box is connected by gas pipeline, is sealed between the rotating shaft and outer tube；The input connection of the electric cabinet
Power supply, the output end of the electric cabinet is by controlling cable to connect shock wave generator and Pneumatic controlled box respectively；In described Pneumatic controlled box
It is provided with air cleaner pressure-reducing valve and magnetic valve, air intake, air cleaner pressure-reducing valve, magnetic valve, the gas of the Pneumatic controlled box
The gas outlet of control case passes sequentially through the connection of high pressure gas pipeline road.
2. the ash ejector of air shock wave with playpipe according to claim 1, it is characterised in that the Pneumatic controlled box air intake
High pressure gas pipeline road is provided with loose joint.
3. the ash ejector of air shock wave with playpipe according to claim 1, it is characterised in that the Pneumatic controlled box gas outlet
High pressure gas pipeline road is provided with pressure gauge.
4. the ash ejector of air shock wave with playpipe according to claim 1, it is characterised in that also covered on the rotary nozzle
Provided with the flange sleeve for being arranged on rotary nozzle on furnace wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720119290.0U CN206973595U (en) | 2017-02-09 | 2017-02-09 | Ash ejector of air shock wave with playpipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720119290.0U CN206973595U (en) | 2017-02-09 | 2017-02-09 | Ash ejector of air shock wave with playpipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206973595U true CN206973595U (en) | 2018-02-06 |
Family
ID=61414791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720119290.0U Active CN206973595U (en) | 2017-02-09 | 2017-02-09 | Ash ejector of air shock wave with playpipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206973595U (en) |
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2017
- 2017-02-09 CN CN201720119290.0U patent/CN206973595U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180124 Address after: 053000 Hengshui City, Hebei province Jizhou District Industrial Park Kaiyuan North Road South Patentee after: Hebei Chengyi environmental protection equipment Co., Ltd. Address before: 201401 Fengxian District, Fengxian District, Shanghai, round City West Road, No. 3111, No. 555, -1720 Patentee before: Shanghai Hong Sheng Environmental Protection Technology Co., Ltd. |