CN108413422A - Accurate Controllable Air shock wave soot blower - Google Patents
Accurate Controllable Air shock wave soot blower Download PDFInfo
- Publication number
- CN108413422A CN108413422A CN201710070791.9A CN201710070791A CN108413422A CN 108413422 A CN108413422 A CN 108413422A CN 201710070791 A CN201710070791 A CN 201710070791A CN 108413422 A CN108413422 A CN 108413422A
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- China
- Prior art keywords
- shock wave
- controlled box
- wave generator
- gas outlet
- pneumatic controlled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000035939 shock Effects 0.000 title claims abstract description 68
- 239000004071 soot Substances 0.000 title claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 description 51
- 239000000428 dust Substances 0.000 description 17
- 238000013517 stratification Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 11
- 238000004939 coking Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 3
- 210000000867 larynx Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 208000025599 Heat Stress disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses a kind of accurate Controllable Air shock wave soot blowers, including electric cabinet, ball valve, Pneumatic controlled box, shock wave generator and the rotary nozzle being set on furnace wall；The gas outlet of the ball valve connects the gas outlet of the air intake and shock wave generator of Pneumatic controlled box by gas pipeline respectively；The gas outlet of the Pneumatic controlled box is connected to the air intake of shock wave generator by gas pipeline；The gas outlet of the shock wave generator is connected to rotary nozzle, is equipped with injection pipe in the shock wave generator, and the outlet side of the injection pipe is towards the gas outlet of shock wave generator；The jet end of the rotary nozzle is set in furnace wall；The rotary nozzle includes outer tube and inner tube, and one end of said inner tube is jet end, and the other end of said inner tube is equipped with the shaft being arranged along inner tube axle center, and the shaft is connected with the stepper motor of drive shaft rotation；The input terminal of the electric cabinet connects power supply, and the output end of the electric cabinet is separately connected shock wave generator, Pneumatic controlled box and stepper motor by controlling cable.
Description
Technical field
The present invention relates to heat exchanger ash removing equipment field, especially a kind of accurate Controllable Air shock wave soot blower.
Background technology
Boiler has heating surface in the long-term use, can accumulate a large amount of dust granules, loose material, binding and deposition
Object reduces boiler thermal efficiency to make boiler tail exhaust gas temperature increase.
Traditional removing ash of boiler is often used gas shock-wave soot blower, it is to utilize acetylene (coal gas, natural gas, liquefied gas)
Etc. common fuel gas and air, after respective flow measuring and controlling system, is uniformly mixed, be then fed by a certain percentage
Pulse-combustion in combustion chamber.Different with conventional combustion process and combustion system, gas impulse burning is using unstable
Burning gases generate compressional wave under high turbulence state, form kinetic energy, acoustic energy, thermal energy.This burning velocity is very fast, burning production
It is suitable in nozzle launching shock wave energy and the dust stratification situation of efferent duct within the scope of raw gas pressure is limited in centainly
It answers.The dust stratification on heating surface is set to fall off by the effect of shock wave, by the dust granule, loose material, viscous on contaminated heating surface
It closes object and deposit removes, reaching reduces boiler tail exhaust gas temperature, improves boiler thermal efficiency.
But using gas shock-wave soot blower, there are the following problems：
1, high directivity has ash disposal dead angle.
2, fuel is high using acetylene, operating cost.
3, using combustion gas（Acetylene, gas）, as combustion explosion air source, there are security risks.
4, SHOCK ENERGY is uncontrollable, and impact failure is caused to furnace wall.
5, gas proportioning changes, and there are miso-fire phenomenon, system stability is poor.
Invention content
Based on this, in view of the above-mentioned problems, it is necessary to propose that a kind of accurate Controllable Air shock wave soot blower, the air shock wave are blown
Using compressed gas as air source, such as air, nitrogen equistability gas as air source burning, explosion etc. do not occur for grey device
Violent chemical reaction, safe to use, dedusting effect is good, and except Transitional Space is without dead angle, and shock strength is controllable.
The technical scheme is that：A kind of accurate Controllable Air shock wave soot blower, including electric cabinet, ball valve, Pneumatic controlled box,
Shock wave generator and the rotary nozzle being set on furnace wall；The gas outlet of the ball valve connects Pneumatic controlled box by gas pipeline respectively
Air intake and shock wave generator gas outlet；The gas outlet of the Pneumatic controlled box is connected to entering for shock wave generator by gas pipeline
Gas port；The gas outlet of the shock wave generator is connected to rotary nozzle, and injection pipe, the injection pipe are equipped in the shock wave generator
Outlet side towards the gas outlet of shock wave generator；The jet end of the rotary nozzle is set in furnace wall；The rotary nozzle
Including 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, said inner tube
The other end be equipped with the shaft that be arranged along inner tube axle center, the shaft is connected with the stepper motor that drive shaft rotates, described turn
It is sealed between axis and outer tube；The input terminal of the electric cabinet connects power supply, and the output end of the electric cabinet is by controlling cable point
It Lian Jie not shock wave generator, Pneumatic controlled box and stepper motor.
The gas of certain pressure（Compressed air）The duration is generated more than 100 millis per subpulse by shock wave generator
Second, intensity are up to 3-5 Mach（Shock strength in jet pipe pipe）Shock wave, in addition with simultaneously generate 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 rotary nozzle inner plane normal shock wave goes out spout, spheric shock can be formed, spheric shock diameter constantly increases, ball
The heart travels forward along spout axis, while with the increase of spheric shock diameter, and shock strength is constantly decayed, and it is sound finally to weaken
Wave.In the confined space of boiler flue, shock wave can generate reflection, refraction because of four wall of flue, and shock wave is produced 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 inside dust stratification by refraction in the physical interface of dust stratification and substrate, the violent pressure of shock wave is vertical
Wave generates a kind of effect for first pressing post-tensioning to dust stratification, and dust stratification is made to rupture, 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, and dust stratification is made to be detached from substrate.
Simultaneously in spout since shock wave and high-speed flow impact, extremely powerful spout noise is generated, 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, it shows as vibration, disturbance and fluctuation, sound
The fierce and fast-changing vibration of wave, the sound intensity reache a certain level（155 decibels of ＞）It afterwards, can be to dust deposition in heating surface
Attachment state generate separation effect, and dust stratification, coking is made to generate fatigue fracture and broken tendency.The compression that spout ejects is empty
After gas reaches heating surface tube wall, dramatic impact is generated to black dirt layer accompanying thereon, coking surface temperature, 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 generate heat fatigue,
So that black dirt layer, coking is generated, fragmentation, fall off tendency.
Spout after shock wave with ejecting high-speed flow（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 injection pipe 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 become larger expands outwardly.Gas moves backward by jet pipe, into injection pipe 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." the small place's flow velocity in section and transonic fluid no longer follows during exercise
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 injection pipe, air-flow
Speed be further accelerated, this creates the terminal huge thrusts.Injection pipe actually plays one " flow velocity enhancer "
Effect, air-flow is accelerated, keeps the energy bigger of shock wave, the effect of soot blowing more preferable.
The inner tube of rotary nozzle is rotatable under the drive of stepper motor, so as to adjust the angle of spout, makes the angle of soot blowing
Degree and range are more flexible, and soot blowing face is wider.
Preferably, air filter pressure reducing valve and solenoid valve are provided in the Pneumatic controlled box, the Pneumatic controlled box enters gas
Mouth, air filter pressure reducing valve, solenoid valve, Pneumatic controlled box gas outlet pass sequentially through gas pipeline connection.
Preferably, the gas pipeline of the air intake of the Pneumatic controlled box is equipped with loose joint.
Loose joint makes dismounting be easier, 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 equipped with pressure gauge.
Pressure gauge understands equipment operation condition, easy to use and maintained equipment for operating personnel.
Preferably, the flange sleeve for being installed on rotary nozzle on furnace wall is also arranged on the rotary nozzle.
Flange sleeve makes dismounting of the rotary nozzle on furnace wall all become convenient.
Preferably, the angle of the stepper motor driving rotary nozzle rotation is 0 degree -180 degree.
Make the nozzle of rotary nozzle only towards direction above the horizontal plane, 180 ° of rotations, left and right cycle, only towards advantageous
Direction is sprayed, and the past is hidden in the place to liquidate with flue gas.Because flue gas has flow velocity, when spout injection direction and flue gas stream
It, can strong counteracting when fast direction is opposite.
Preferably, the timer for start by set date soot blower is additionally provided in the electric cabinet.
It temporally pattern can start ash disposal, ash disposal can also be started by air pressure pattern, can also be transported according to boiler
Row parameter mode starts ash disposal, can both be started with single pattern, and can be started with integrated mode.
Preferably, the diameter of the gas pipeline of the gas outlet connection of the shock wave generator enters gas less than shock wave generator
The diameter of the gas pipeline of mouth connection.Jet port micro-positive pressure is kept, prevents flue gas from pouring in down a chimney into equipment.
The beneficial effects of the invention are as follows：
1, it applies on boiler heating surface, heat exchanger heat exchange efficiency can be improved, belong to energy-saving equipment, exhaust gas temperature often reduces by 10
Degree Celsius, boiler efficiency improves 1%；
2, it applies on garbage fired boiler, biomass boiler, can improve one times of equipment cycle of operation or more, increase economic effect
Benefit；
3, it 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 widely applied steam sootblower and acoustic wave ash ejector on SCR reactors；
4, dedusting effect is good, except Transitional Space is without dead angle；
5, system nature's safety, energy mostlys come from compressed air or dry steam, does not use fuel gas, without motor,
Noise is not generated, security risk is relieved, gas shock-wave is applied especially under the inflammable and explosive environment such as some petroleum and petrochemical industry chemical industry
The security risk of ash handling equipment；
6, air source reference is convenient, and air source need not be separately configured.Existing compressed air and compressed nitrogen may be used.To air source
Pressure requirements are 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；
7, operating cost is low, compared with gas shock-wave soot blower, because using compressed gas merely, gathers materials on the spot conveniently, single
It is the 1/9 of combustion gas that shock wave, which discharges ash disposal cost,；
8, high degree of automation temporally pattern can start ash disposal, can also start ash disposal by air pressure pattern, can be with
Start ash disposal according to boiler operating parameter pattern, both can it is single in pattern start, can be started with integrated mode.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Reference numeral：10- electric cabinets, 20- ball valves, 30- Pneumatic controlled boxes, 31- air filter pressure reducing valves, 32- solenoid valves,
33- loose joints, 40- shock wave generators, 50- stepper motors, 60- outer tubes, 61- inner tubes, 62- shafts, 63- flange sleeves, 70- pressure
Table, 80- injection pipes, 90- furnace walls.
Specific implementation mode
The embodiment of the present invention 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 set 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 is connected to shock wave generator 40 by gas pipeline
Air intake；The gas outlet of the shock wave generator 40 is connected to rotary nozzle, and injection pipe 80 is equipped in the shock wave generator 40,
The outlet side of the injection pipe 80 is towards the gas outlet of shock wave generator 40；The jet end of the rotary nozzle is set to furnace wall 90
It is interior；The rotary nozzle includes outer tube 60 and inner tube 61, and one end of said inner tube 61 is jet end, the jet end of said inner tube 61
It is sealed between outer tube 60, the other end of said inner tube 61 is equipped with the shaft 62 being arranged along 61 axle center of inner tube, and the shaft 62 connects
It is connected to the stepper motor 50 of the rotation of drive shaft 62, is sealed between the shaft 62 and outer tube 60；The input of the electric cabinet 10
The output end of end connection power supply, the electric cabinet 10 is separately connected shock wave generator 40, Pneumatic controlled box 30 and step by controlling cable
Stepper motor 50.
In one of the embodiments, air filter pressure reducing valve 31 and solenoid valve are provided in the Pneumatic controlled box 30
32, the air intake of the Pneumatic controlled box 30, air filter pressure reducing valve 31, solenoid valve 32, Pneumatic controlled box 30 gas outlet pass sequentially through
Gas pipeline is connected to.
The gas pipeline of the air intake of the Pneumatic controlled box 30 is equipped with loose joint 33 in one of the embodiments,.
The high pressure gas pipeline road of 30 gas outlet of the Pneumatic controlled box is equipped with pressure gauge 70 in one of the embodiments,.
It is also arranged on the rotary nozzle for rotary nozzle to be installed on furnace wall 90 in one of the embodiments,
On flange sleeve 63.
It is 0 degree -180 degree that the stepper motor 50, which drives the angle of rotary nozzle rotation, in one of the embodiments,.
The timer for start by set date soot blower is additionally provided in the electric cabinet 10 in one of the embodiments,.
Specific implementation mode of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.
Claims (7)
1. a kind of accurate Controllable Air shock wave soot blower, which is characterized in that including electric cabinet, ball valve, Pneumatic controlled box, shock wave generator
With the rotary nozzle being set on furnace wall；The gas outlet of the ball valve respectively by gas pipeline connect Pneumatic controlled box air intake and
The gas outlet of shock wave generator；The gas outlet of the Pneumatic controlled box is connected to the air intake of shock wave generator by gas pipeline；It is described
The gas outlet of shock wave generator is connected to rotary nozzle, and injection pipe, the outlet side of the injection pipe are equipped in the shock wave generator
Towards the gas outlet of shock wave generator；The jet end of the rotary nozzle is set 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
Equipped with the shaft being arranged along inner tube axle center, the shaft is connected with the stepper motor of drive shaft rotation, the shaft and outer tube
Between seal；The input terminal of the electric cabinet connects power supply, the output end of the electric cabinet by control cable be separately connected it is sharp
Wave producer, Pneumatic controlled box and stepper motor.
2. accurate Controllable Air shock wave soot blower according to claim 1, which is characterized in that setting in the Pneumatic controlled box
There are air filter pressure reducing valve and solenoid valve, air intake, air filter pressure reducing valve, solenoid valve, the Pneumatic controlled box of the Pneumatic controlled box
Gas outlet pass sequentially through gas pipeline connection.
3. accurate Controllable Air shock wave soot blower according to claim 1, which is characterized in that the air intake of the Pneumatic controlled box
Gas pipeline be equipped with loose joint.
4. accurate Controllable Air shock wave soot blower according to claim 1, which is characterized in that the Pneumatic controlled box gas outlet
High pressure gas pipeline road is equipped with pressure gauge.
5. accurate Controllable Air shock wave soot blower according to claim 1, which is characterized in that on the rotary nozzle also
It is arranged with the flange sleeve for being installed on rotary nozzle on furnace wall.
6. accurate Controllable Air shock wave soot blower according to claim 1, which is characterized in that the stepper motor driving rotation
The angle for turning nozzle rotation is 0 degree -180 degree.
7. accurate Controllable Air shock wave soot blower according to claim 1, which is characterized in that also set up in the electric cabinet
It is useful for the timer of start by set date soot blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710070791.9A CN108413422A (en) | 2017-02-09 | 2017-02-09 | Accurate Controllable Air shock wave soot blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710070791.9A CN108413422A (en) | 2017-02-09 | 2017-02-09 | Accurate Controllable Air shock wave soot blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108413422A true CN108413422A (en) | 2018-08-17 |
Family
ID=63124924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710070791.9A Pending CN108413422A (en) | 2017-02-09 | 2017-02-09 | Accurate Controllable Air shock wave soot blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108413422A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111943499A (en) * | 2020-07-17 | 2020-11-17 | 中国航空工业集团公司北京长城航空测控技术研究所 | Ultrafast laser precision cutting method based on ultrasonic nitrogen jet |
| CN116498983A (en) * | 2023-06-27 | 2023-07-28 | 山西毅诚科信科技有限公司 | Rake type soot blower with self-cleaning function |
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|---|---|---|---|---|
| CN201072131Y (en) * | 2007-07-19 | 2008-06-11 | 北京光华启明烽科技有限公司 | Bow-wave ash blowing system |
| CN202647802U (en) * | 2012-02-29 | 2013-01-02 | 黑龙江源锋电站设备有限公司 | Rotary type shock wave nozzle |
| CN103047663A (en) * | 2012-12-15 | 2013-04-17 | 慈溪市隆诚贸易有限公司 | Withdrawal type online impact ash removal device for boiler |
| CN206973590U (en) * | 2017-02-09 | 2018-02-06 | 上海洪声环保科技有限公司 | Accurate controllable air shock wave soot blower |
-
2017
- 2017-02-09 CN CN201710070791.9A patent/CN108413422A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201072131Y (en) * | 2007-07-19 | 2008-06-11 | 北京光华启明烽科技有限公司 | Bow-wave ash blowing system |
| CN202647802U (en) * | 2012-02-29 | 2013-01-02 | 黑龙江源锋电站设备有限公司 | Rotary type shock wave nozzle |
| CN103047663A (en) * | 2012-12-15 | 2013-04-17 | 慈溪市隆诚贸易有限公司 | Withdrawal type online impact ash removal device for boiler |
| CN206973590U (en) * | 2017-02-09 | 2018-02-06 | 上海洪声环保科技有限公司 | Accurate controllable air shock wave soot blower |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111943499A (en) * | 2020-07-17 | 2020-11-17 | 中国航空工业集团公司北京长城航空测控技术研究所 | Ultrafast laser precision cutting method based on ultrasonic nitrogen jet |
| CN116498983A (en) * | 2023-06-27 | 2023-07-28 | 山西毅诚科信科技有限公司 | Rake type soot blower with self-cleaning function |
| CN116498983B (en) * | 2023-06-27 | 2023-08-29 | 山西毅诚科信科技有限公司 | Rake type soot blower with self-cleaning function |
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