CN206973589U - Ash ejector of air shock wave - Google Patents
Ash ejector of air shock wave Download PDFInfo
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- CN206973589U CN206973589U CN201720119186.1U CN201720119186U CN206973589U CN 206973589 U CN206973589 U CN 206973589U CN 201720119186 U CN201720119186 U CN 201720119186U CN 206973589 U CN206973589 U CN 206973589U
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Abstract
The utility model discloses a kind of ash ejector of air shock wave, 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 jet end of the rotary nozzle are arranged in furnace wall；The rotary nozzle includes outer tube and inner tube, one end of said inner tube is jet end, 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, the rotating shaft is connected with the cylinder of drive shaft rotation, the air intake of the cylinder connects the gas outlet of Pneumatic controlled box by gas pipeline, is sealed between the rotating shaft and outer tube；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.
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, the ash ejector of air shock wave uses
Compressed gas is as source of the gas, for example air, nitrogen equistability gas is as source of the gas, the violent change such as do not burn, explode
Reaction is learned, safe to use, 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, 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 entering for Pneumatic controlled box by gas pipeline respectively
The gas outlet of gas port and shock wave generator；The gas outlet of the Pneumatic controlled box enters gas by gas pipeline connection shock wave generator
Mouthful；The gas outlet connection rotary nozzle of the shock wave generator, the jet end of the rotary nozzle are arranged in furnace wall；The rotation
Turning shower 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, institute
The other end for stating 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, described
The air intake of cylinder connects the gas outlet of Pneumatic controlled box by gas pipeline, is sealed between the rotating shaft and outer tube；The electric cabinet
Input connection power supply, 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 shower nozzle inner plane normal shock wave goes out spout, spheric shock can be formed, spheric shock diameter constantly increases, its centre of sphere edge
Spout axis travels forward, while as the increase of spheric shock diameter, shock strength are constantly decayed, it is sound wave finally to weaken.
In the confined space of boiler flue, shock wave can produce reflection, refraction because of the wall of flue four, and shock wave produces saturating in heating surface tube interfascicular
Penetrate, reflect, reflect, in the space of limitation, the useful effect space of shock wave can be than the increase in free-space field.Shock wave can be
Dust stratification and the physical interface of substrate reflect, and can be imported by refraction inside dust stratification, the violent pressure compressional wave pair of shock wave
Dust stratification produces a kind of effect for first pressing post-tensioning, ruptures dust stratification, and the refraction shock wave imported in dust stratification can also produce production in grey body
Raw shear wave, 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 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 gas pipeline connection.
Preferably, the gas pipeline 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 gas pipeline of the gas outlet of the Pneumatic controlled box 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, ash ejector of air shock wave energy of the present utility model mostly come from compressed air or drying
Steam, without using fuel gas, without motor, noise is not produced, relieves potential safety hazard, particularly some petroleum and petrochemical industry chemical industry
Etc. the potential safety hazard that gas shock-wave ash handling equipment is applied under inflammable and explosive environment；
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,
40- shock wave generators, 50- cylinders, 60- outer tubes, 61- inner tubes, 62- rotating shafts, 63- flange sleeves, 70- loose joints, 80- pressure gauges,
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, including electric cabinet 10, ball valve 20, Pneumatic controlled box 30, shock wave generator
40 and the rotary nozzle that is arranged on furnace wall 90；The gas outlet of the ball valve 20 connects Pneumatic controlled box 30 by gas pipeline respectively
The gas outlet of air intake and shock wave generator 40；The gas outlet of the Pneumatic controlled box 30 connects shock wave generator 40 by gas pipeline
Air intake；The gas outlet connection rotary nozzle of the shock wave generator 40, the jet end of the rotary nozzle are arranged at furnace wall
In 90；The rotary nozzle includes outer tube 60 and inner tube 61, and one end of said inner tube 61 is jet end, the jet of said inner tube 61
Sealed between end and outer tube 60, 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
The cylinder 50 of the rotation of drive shaft 62 is connected with, the air intake of the cylinder 50 connects the outlet of Pneumatic controlled box 30 by gas pipeline
Mouthful, sealed between the rotating shaft 62 and outer tube 60；The input connection power supply of the electric cabinet 30, the output of the electric cabinet 30
End 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
Gas pipeline connects.
In one of the embodiments, the gas pipeline of the air intake of the Pneumatic controlled box 30 is provided with loose joint 70.
In one of the embodiments, the gas pipeline of the gas outlet of the Pneumatic controlled box 30 is provided with pressure gauge 80.
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 (5)
1. a kind of ash ejector of air shock wave, it is characterised in that including electric cabinet, ball valve, Pneumatic controlled box, shock wave generator and be arranged at
Rotary nozzle on furnace wall；The gas outlet of the ball valve connects the air intake of Pneumatic controlled box by gas pipeline respectively and shock wave occurs
The gas outlet of device；The gas outlet of the Pneumatic controlled box connects the air intake of shock wave generator by gas pipeline；The shock wave occurs
The gas outlet connection rotary nozzle of device, the jet end of the rotary nozzle are arranged in furnace wall；The rotary nozzle includes outer tube
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, the other end of said inner tube
Provided with the rotating shaft set along inner tube axle center, the rotating shaft is connected with the cylinder of drive shaft rotation, and the air intake of the cylinder leads to
The gas outlet of gas pipeline connection Pneumatic controlled box is crossed, is sealed between the rotating shaft and outer tube；The input connection electricity of the electric cabinet
Source, the output end of the electric cabinet is by controlling cable to connect shock wave generator and Pneumatic controlled box respectively.
2. ash ejector of air shock wave according to claim 1, it is characterised in that air mistake is provided with described Pneumatic controlled box
Filter pressure-reducing valve and magnetic valve, the air intake of the Pneumatic controlled box, air cleaner pressure-reducing valve, magnetic valve, the gas outlet of Pneumatic controlled box
Pass sequentially through gas pipeline connection.
3. ash ejector of air shock wave according to claim 1, it is characterised in that the appendix of the air intake of the Pneumatic controlled box
Road is provided with loose joint.
4. ash ejector of air shock wave according to claim 1, it is characterised in that the appendix of the gas outlet of the Pneumatic controlled box
Road is provided with pressure gauge.
5. ash ejector of air shock wave according to claim 1, it is characterised in that be also arranged with use on described rotary nozzle
In the flange sleeve being arranged on rotary nozzle on furnace wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720119186.1U CN206973589U (en) | 2017-02-09 | 2017-02-09 | Ash ejector of air shock wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720119186.1U CN206973589U (en) | 2017-02-09 | 2017-02-09 | Ash ejector of air shock wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206973589U true CN206973589U (en) | 2018-02-06 |
Family
ID=61414794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720119186.1U Active CN206973589U (en) | 2017-02-09 | 2017-02-09 | Ash ejector of air shock wave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206973589U (en) |
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2017
- 2017-02-09 CN CN201720119186.1U patent/CN206973589U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180126 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. |
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| TR01 | Transfer of patent right |