CN105289913B - Liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun - Google Patents
Liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun Download PDFInfo
- Publication number
- CN105289913B CN105289913B CN201510754837.XA CN201510754837A CN105289913B CN 105289913 B CN105289913 B CN 105289913B CN 201510754837 A CN201510754837 A CN 201510754837A CN 105289913 B CN105289913 B CN 105289913B
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- Prior art keywords
- plug
- gun
- gun barrel
- powder feeding
- powder
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0692—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by a fluid
Abstract
The invention discloses a kind of liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun, including gun housing and gun barrel, also include atomizer, spark plug, oxygen jet, combustion chamber, powder feeding pin, convergence section, the annular throat with inclination angle, diffuser, delivery port, the gun barrel port of export, plug cone and water inlet, described water inlet and delivery port are provided with the gun housing, the combustion chamber rear end is provided with described atomizer, spark plug and oxygen jet, the chamber front end is provided with described plug cone, the plug cone flare；Space between the plug cone surrounding and the gun barrel forms described convergence section, the convergence section front end forms the described annular throat with inclination angle, the annular throat front end with inclination angle is described diffuser, and the diffuser front end is the described gun barrel port of export.After the present invention, the transmitting of liquid fuel more at a high speed, flame beam more concentrate, the more efficient effect of powder on powder, while can obviously reduce the wear intensity of gun barrel.
Description
Technical field
The present invention relates to a kind of liquid fuel spray gun, more particularly to a kind of liquid fuel axle center powder feeding circumferential weld plug Supersonic
Fast spray gun.
Background technology
The general principle of traditional liquid fuel supersonic spray gun is by liquid by combustion adjuvant oxygen by atomizer
Fluid fuel forms combustion mixture and enters combustion chamber, the high-temperature high-pressure fuel gas that ignition system is lighted, through drawing after being fully atomized
The supersonic speed flame stream that HTHP is formed after nozzle divergence is cut down, dusty material is radially sent into flame stream by powder feed system from low-pressure area
In, add
Temperature sprays to workpiece surface and forms quality coating after accelerating.This traditional supersonic spray gun has the following disadvantages：
(1) flame beam is not enough concentrated, and the lifting of flame core jet velocity runs into bottleneck；(2) powder can not effectively reach flame core, and powder is not
Optimal combustion state and particle flight speed can be obtained；(3) powder is elegant excessive, and workpiece powder utilization efficiency is low；(4) gun barrel
Easily there is abrasion groove in inwall, causes leak to be failed；(5) powder is easily in gun barrel inwall pickup and blocking.
The content of the invention
The technical problems to be solved by the invention are：There is provided it is a kind of more at a high speed, flame beam is more concentrated, powder efficiency is more on powder
Efficiently at the same can reduce gun barrel abrasion liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun.
It is of the invention to be for the technical solution adopted for solving the technical problem：
A kind of liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun, including gun housing and gun barrel, in addition to atomizer, fire
Hua Sai, oxygen jet, combustion chamber, powder feeding pin, convergence section, the annular throat with inclination angle, diffuser, delivery port, gun barrel outlet
End, plug is bored and water inlet, and described water inlet and delivery port are provided with the gun housing, and the combustion chamber rear end is provided with described
Atomizer, spark plug and oxygen jet, the chamber front end is provided with described plug cone, the plug cone flare；Institute
State the space between plug cone surrounding and the gun barrel and form described convergence section, the convergence section front end forms described carrying and inclined
The annular throat at angle, the annular throat front end with inclination angle are described diffuser, and the diffuser front end is described
The gun barrel port of export.
The powder feeding pin is L-shaped, and it exports the center of plug cone and convergence section described in face.
The gun housing has a cooling water intake and delivery port, and cooling water enters from water inlet, from going out after each water channel
The mouth of a river is flowed out, and is taken away waste heat, is maintained the normal working temperature of spray gun.Fuel oil injects combustion chamber from atomizer, and oxygen passes through
Oxygen jet enters combustion chamber, and spark plug is used for lighting the mixture of fuel oil and oxygen；Powder enters flame core, flame from powder feeding pin
Enter convergence section from combustion chamber, throat entered after compression, subsequently into diffuser, flame accelerated after by powder particle from rifle
The pipe port of export sprays.
The concrete operating principle and process of the present invention is as follows：
1. fuel oil injects combustion chamber from atomizer, oxygen enters combustion chamber by oxygen jet, and then oxygen is by fuel spray
Enter combustion chamber with oxygen mix after change；
2. by plug ignition, mixture in combustion chamber is fully burnt, forms high temperature and high pressure gas；
3. high temperature and high pressure gas bore both sides by the plug of combustion chamber enters convergence section, gas is compressed again, Ran Houtong
Throat is crossed, enters back into diffuser, forms supersonic airstream, the air-flow makes flame flame stream from the annular throat outflow with inclination angle
To diffuser center convergence, concentrate flame Shu Gengwei；
4. powder enters flame core from powder feeding pin, the flame come out from diffuser brings powder particle into flame after being accelerated
Flame core, powder obtain heat in flame and burnt to molten condition, accelerate to spray from the gun barrel port of export by flame stream；
5. powder is sprayed in flame core to workpiece, powder is reduced to the elegant of flame flame envelope, improves the upper powder efficiency of powder,
It is in when powder accelerates in gun barrel in flame core, reduces the friction with gun barrel inwall, powder does not contact directly with gun barrel inwall,
Prevent powder in gun barrel inwall pickup and blocking；
6. cooling water flows through outer wall of combustion chamber, plug cone inside, gun barrel outer wall successively, gun body all parts are cooled down.
After the present invention, the transmitting of liquid fuel more at a high speed, flame beam more concentrate, the more efficient effect of powder on powder, together
When can obviously reduce the wear intensity of gun barrel.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
The present invention is made further explanation and description below in conjunction with the accompanying drawings：
Referring to Fig. 1, a kind of liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun, including gun housing 4 and gun barrel 10, also
Including atomizer 1, spark plug 2, oxygen jet 3, combustion chamber 5, powder feeding pin 6, convergence section 7, the annular throat 8 with inclination angle, expansion
Section 9, delivery port 11, the gun barrel port of export 12, plug cone 13 and water inlet 14 are dissipated, water inlet 14 and water outlet are provided with gun housing 4
Mouth 11, atomizer 1, spark plug 2 and oxygen jet 3 are provided with the rear end of combustion chamber 5, and plug cone is provided with the front end of combustion chamber 5
13, plug 13 flares of cone；Space between plug 13 surroundings of cone and gun barrel 10 forms convergence section 7, and the front end of convergence section 7 is formed
Annular throat 8 with inclination angle, the front end of annular throat 8 with inclination angle are diffuser 9, are gone out in the front end of diffuser 9 for gun barrel
Mouth end 12.
Wherein：Powder feeding pin 6 is L-shaped, and it exports the center of face plug cone 13 and convergence section 7.
The specific work process of the present invention is as follows：
1. fuel oil injects combustion chamber 5 from atomizer 1, oxygen enters combustion chamber 5 by oxygen jet 3, and then oxygen will
Enter combustion chamber 5 with oxygen mix after fuel-oil atmozation；
2. being lighted a fire by spark plug 2, mixture in combustion chamber 5 is fully burnt, forms high temperature and high pressure gas；
3. high temperature and high pressure gas bore 13 both sides by the plug of combustion chamber 5 enters convergence section 7, gas is compressed again,
Then by throat, diffuser is entered back into, forms supersonic airstream, the air-flow flows out from the annular throat 8 with inclination angle, made
Flame flame flows to diffuser center convergence, concentrates flame Shu Gengwei；
4. powder enters flame core from powder feeding pin 6, the flame come out from diffuser 9 brings powder particle into after being accelerated
Flame flame core, powder obtain heat in flame and burnt to molten condition, accelerate to spray from the gun barrel port of export 12 by flame stream；
5. powder is sprayed in flame core to workpiece, powder is reduced to the elegant of flame flame envelope, improves the upper powder efficiency of powder,
It is in when powder accelerates in gun barrel in flame core, reduces the friction with gun barrel inwall, powder does not contact directly with gun barrel inwall,
Prevent powder in gun barrel inwall pickup and blocking；
6. cooling water flows through outer wall of combustion chamber, plug cone inside, gun barrel outer wall successively, gun body all parts are cooled down.
After the present invention, the transmitting of liquid fuel more at a high speed, flame beam more concentrate, the more efficient effect of powder on powder, together
When can obviously reduce the wear intensity of gun barrel；
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, it is all
It is any simple modification, equivalent change and modification made according to the technical spirit of the present invention to above example, still falls within
Within the protection domain of technical solution of the present invention.
Claims (1)
1. a kind of liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun, including gun housing（4）And gun barrel（10）, its feature exists
In：The liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun also includes atomizer（1）, spark plug（2）, oxygen jet
（3）, combustion chamber（5）, powder feeding pin（6）, convergence section（7）, annular throat with inclination angle（8）, diffuser（9）, delivery port（11）、
The gun barrel port of export（12）, plug cone（13）And water inlet（14）, the gun housing（4）On be provided with described water inlet（14）And water outlet
Mouthful（11）, the combustion chamber（5）Rear end is provided with described atomizer（1）, spark plug（2）And oxygen jet（3）, described spray
Oil nozzle（1）, spark plug（2）And oxygen jet（3）From the combustion chamber（5）Inner side to outside in diffusion type set, the combustion
Burn room（5）Front end is provided with described plug cone（13）, the plug cone（13）Flare；The plug cone（13）Surrounding and the rifle
Pipe（10）Between space form described convergence section（7）, the convergence section（7）Front end forms the described ring-type with inclination angle
Throat（8）, the annular throat with inclination angle（8）Front end is described diffuser（9）, the diffuser（9）Front end is institute
The gun barrel port of export stated（12）；The powder feeding pin（6）L-shaped, it, which is exported, fills in cone described in face（13）And convergence section（7）In
The heart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510754837.XA CN105289913B (en) | 2015-11-09 | 2015-11-09 | Liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510754837.XA CN105289913B (en) | 2015-11-09 | 2015-11-09 | Liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105289913A CN105289913A (en) | 2016-02-03 |
| CN105289913B true CN105289913B (en) | 2018-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510754837.XA Active CN105289913B (en) | 2015-11-09 | 2015-11-09 | Liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun |
Country Status (1)
| Country | Link |
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| CN (1) | CN105289913B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106591764B (en) * | 2017-02-27 | 2019-08-23 | 郑州立佳热喷涂机械有限公司 | Liquid fuel inner hole supersonic spray gun |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5372857A (en) * | 1992-12-17 | 1994-12-13 | Browning; James A. | Method of high intensity steam cooling of air-cooled flame spray apparatus |
| CN1119401A (en) * | 1994-08-08 | 1996-03-27 | 普拉塞尔技术有限公司 | Laminar flow shielding of fluid jet |
| CN1278461A (en) * | 2000-08-10 | 2001-01-03 | 沈阳航空工业学院 | Supersonic flame smelting and painting method |
| CN2617477Y (en) * | 2003-01-21 | 2004-05-26 | 王泰兴 | Axial power feeding supersonic flame jet with liquid fuel as power supply |
| CN101410551A (en) * | 2006-03-24 | 2009-04-15 | 林德股份公司 | Cold-gas spray gun |
| CN102560326A (en) * | 2012-02-24 | 2012-07-11 | 中国科学院金属研究所 | Thermal spraying device and method for manufacturing quasicrystalline coating |
| CN103506232A (en) * | 2013-07-31 | 2014-01-15 | 中国船舶重工集团公司第七二五研究所 | Internally and externally installed thermal spraying gun improved from internally installed thermal spraying gun and using method of internally and externally installed thermal spraying gun |
| CN205074129U (en) * | 2015-11-09 | 2016-03-09 | 郑州立佳热喷涂机械有限公司 | Liquid fuel send in axle center whitewashed circumferential weld stopper formula supersonic speed spray gun |
-
2015
- 2015-11-09 CN CN201510754837.XA patent/CN105289913B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5372857A (en) * | 1992-12-17 | 1994-12-13 | Browning; James A. | Method of high intensity steam cooling of air-cooled flame spray apparatus |
| CN1119401A (en) * | 1994-08-08 | 1996-03-27 | 普拉塞尔技术有限公司 | Laminar flow shielding of fluid jet |
| CN1278461A (en) * | 2000-08-10 | 2001-01-03 | 沈阳航空工业学院 | Supersonic flame smelting and painting method |
| CN2617477Y (en) * | 2003-01-21 | 2004-05-26 | 王泰兴 | Axial power feeding supersonic flame jet with liquid fuel as power supply |
| CN101410551A (en) * | 2006-03-24 | 2009-04-15 | 林德股份公司 | Cold-gas spray gun |
| CN102560326A (en) * | 2012-02-24 | 2012-07-11 | 中国科学院金属研究所 | Thermal spraying device and method for manufacturing quasicrystalline coating |
| CN103506232A (en) * | 2013-07-31 | 2014-01-15 | 中国船舶重工集团公司第七二五研究所 | Internally and externally installed thermal spraying gun improved from internally installed thermal spraying gun and using method of internally and externally installed thermal spraying gun |
| CN205074129U (en) * | 2015-11-09 | 2016-03-09 | 郑州立佳热喷涂机械有限公司 | Liquid fuel send in axle center whitewashed circumferential weld stopper formula supersonic speed spray gun |
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| Publication number | Publication date |
|---|---|
| CN105289913A (en) | 2016-02-03 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160203 Assignee: Wuxi Lijia Technology Co.,Ltd. Assignor: ZHENGZHOU LIJIA THERMAL SPRAYING MACHINERY Co.,Ltd. Contract record no.: X2022980024332 Denomination of invention: Liquid fuel axial powder feeding annular slot plug supersonic spray gun Granted publication date: 20180105 License type: Common License Record date: 20221201 |
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| EE01 | Entry into force of recordation of patent licensing contract |