CN205074129U - Liquid fuel send in axle center whitewashed circumferential weld stopper formula supersonic speed spray gun - Google Patents
Liquid fuel send in axle center whitewashed circumferential weld stopper formula supersonic speed spray gun Download PDFInfo
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- CN205074129U CN205074129U CN201520885650.9U CN201520885650U CN205074129U CN 205074129 U CN205074129 U CN 205074129U CN 201520885650 U CN201520885650 U CN 201520885650U CN 205074129 U CN205074129 U CN 205074129U
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Abstract
The utility model discloses a liquid fuel send in axle center whitewashed circumferential weld stopper formula supersonic speed spray gun, including firearm housing and barrel, the cyclic annular throat, diffuser, delivery port, barrel exit end, the stopper that still include fuel sprayer, spark plug, oxygen nozzle, combustion chamber, send whitewashed needle, the section of assembling, have an inclination are bored and the water inlet, firearm housing is last to be provided with water inlet and delivery port, the combustion chamber rear end is provided with fuel sprayer, spark plug and oxygen nozzle, the chamber front end is provided with stopper awl, the stopper awl is tubaeformly, stopper awl all around with void formation between the barrel the section of assembling, the section of assembling front end forms the cyclic annular throat that has an inclination, the cyclic annular throat front end that has the inclination does the diffuser, the diffuser front end does the barrel exit end. Use the utility model discloses afterwards, liquid fuel's transmission is more high -speed, flame is restrainted and more to be concentrated, powder efficiency is more high -efficient on the powder, can obviously reduce the adradability of barrel simultaneously.
Description
Technical field:
The utility model relates to a kind of liquid fuel spray gun, particularly relates to a kind of liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun.
Background technology:
The general principle of traditional liquid fuel supersonic spray gun liquid fuel is fully atomized rear formation combustion mixture by atomizer by combustion adjuvant oxygen enter combustion chamber, the high-temperature high-pressure fuel gas that ignition system is lighted, the supersonic speed flame stream of HTHP is formed after drawing and cutting down nozzle divergence, dusty material is sent into flame stream from low-pressure area radial direction by powder feed system, heats after accelerating and sprays to surface of the work formation quality coating.There is following shortcoming in this traditional supersonic spray gun: (1) flame bundle is concentrated not, and flame core jet velocity promotes and runs into bottleneck; (2) powder effectively can not arrive flame core, and powder can not obtain optimal combustion state and particle flight speed; (3) powder is too much elegant, workpiece powder utilization inefficiency; (4) easily there is the groove that weares and teares in gun barrel inwall, causes inefficacy of leaking; (5) powder is easily in gun barrel inwall pickup and blocking.
Utility model content:
Technical problem to be solved in the utility model is: provide a kind of more at a high speed, more efficient, the liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun that simultaneously can reduce gun barrel wearing and tearing of powder efficiency on more concentrated, the powder of flame bundle.
The technical scheme that the utility model is taked for technical solution problem is:
A kind of liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun, comprise rifle shell and gun barrel, also comprise atomizer, spark plug, oxygen jet, combustion chamber, powder feeding pin, convergence section, annular throat with inclination angle, diffuser, delivery port, the gun barrel port of export, plug cone and water inlet, described rifle shell is provided with described water inlet and delivery port, rear end, described combustion chamber is provided with described atomizer, spark plug and oxygen jet, described chamber front end is provided with described plug cone, described plug cone flare; Space between described plug cone surrounding and described gun barrel forms described convergence section, described convergence section front end forms the described annular throat with inclination angle, the described annular throat front end with inclination angle is described diffuser, and described diffuser front end is the described gun barrel port of export.
Described powder feeding pin is in " L " type, and its outlet is just to described center of filling in cone and convergence section.
Described rifle shell has cooling water intake and delivery port, and cooling water enters from water inlet, flows out, take away waste heat after each water channel from delivery port, maintains the normal working temperature of spray gun.Fuel oil injects combustion chamber from atomizer, and oxygen enters combustion chamber by oxygen jet, and spark plug is used for lighting the mixture of fuel oil and oxygen; Powder enters flame core from powder feeding pin, and flame enters convergence section from combustion chamber, enters throat after compression, then enters diffuser, and powder particle sprays from the gun barrel port of export after obtaining and accelerating by flame.
Specific works principle of the present utility model and process as follows:
1. fuel oil injects combustion chamber from atomizer, and oxygen enters combustion chamber by oxygen jet, and then oxygen enters combustion chamber by after fuel-oil atmozation with oxygen mix;
2. by plug ignition, by mixture Thorough combustion in combustion chamber, high temperature and high pressure gas is formed;
3. high temperature and high pressure gas enters convergence section by the plug cone both sides of combustion chamber, and gas compresses again, then passes through throat, enter diffuser again, form supersonic airstream, this air-flow flows out from the annular throat with inclination angle, make flame flame flow to diffuser center convergence, flame Shu Gengwei is concentrated;
4. powder enters flame core from powder feeding pin, after diffuser flame out obtains acceleration, bring powder particle into flame flame core, and powder obtains heat burning to molten condition in flame, accelerates to spray from the gun barrel port of export by flame stream;
5. powder sprays to workpiece in flame core, reduces elegant to flame flame envelope of powder, improves the upper powder efficiency of powder, be in when powder accelerates in gun barrel in flame core, decrease the friction with gun barrel inwall, powder does not directly contact with gun barrel inwall, prevents 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, cooling gun body all parts.
Use after the utility model, powder efficiency is more efficient more at a high speed, on more concentrated, the powder of flame bundle in the transmitting of liquid fuel, obviously can reduce the wear intensity of gun barrel simultaneously.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is further explained and illustrate:
See Fig. 1, a kind of liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun, comprise rifle shell 4 and gun barrel 10, also comprise atomizer 1, spark plug 2, oxygen jet 3, combustion chamber 5, powder feeding pin 6, convergence section 7, annular throat 8 with inclination angle, diffuser 9, delivery port 11, the gun barrel port of export 12, plug cone 13 and water inlet 14, rifle shell 4 is provided with water inlet 14 and delivery port 11, rear end, combustion chamber 5 is provided with atomizer 1, spark plug 2 and oxygen jet 3, plug cone 13 is provided with, plug cone 13 flare in front end, combustion chamber 5; Space between plug cone 13 surrounding and gun barrel 10 forms convergence section 7, and convergence section 7 front end forms the annular throat 8 with inclination angle, and annular throat 8 front end with inclination angle is diffuser 9, is the gun barrel port of export 12 in diffuser 9 front end.
Wherein: powder feeding pin 6 is in " L " type, and its outlet is just to the center of filling in cone 13 and convergence section 7.
Specific works process of the present utility model is as follows:
1. fuel oil injects combustion chamber 5 from atomizer 1, and oxygen enters combustion chamber 5 by oxygen jet 3, and then oxygen enters combustion chamber 5 by after fuel-oil atmozation with oxygen mix;
2. lighted a fire by spark plug 2, by mixture Thorough combustion in combustion chamber 5, form high temperature and high pressure gas;
3. high temperature and high pressure gas is bored 13 both sides by the plug of combustion chamber 5 and is entered convergence section 7, gas compresses again, then throat is passed through, enter diffuser again, form supersonic airstream, this air-flow flows out from the annular throat 8 with inclination angle, makes flame flame flow to diffuser center convergence, and flame Shu Gengwei is concentrated;
4. powder enters flame core from powder feeding pin 6, after diffuser 9 flame out obtains acceleration, bring powder particle into flame flame core, and powder obtains heat burning to molten condition in flame, accelerates to spray from the gun barrel port of export 12 by flame stream;
5. powder sprays to workpiece in flame core, reduces elegant to flame flame envelope of powder, improves the upper powder efficiency of powder, be in when powder accelerates in gun barrel in flame core, decrease the friction with gun barrel inwall, powder does not directly contact with gun barrel inwall, prevents 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, cooling gun body all parts.
Use after the utility model, powder efficiency is more efficient more at a high speed, on more concentrated, the powder of flame bundle in the transmitting of liquid fuel, obviously can reduce the wear intensity of gun barrel simultaneously.
The above; it is only preferred embodiment of the present utility model; not any pro forma restriction is done to the utility model; every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, within the protection domain all still belonging to technical solutions of the utility model.
Claims (2)
1. a liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun, comprise rifle shell (4) and gun barrel (10), it is characterized in that: described liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun also comprises atomizer (1), spark plug (2), oxygen jet (3), combustion chamber (5), powder feeding pin (6), convergence section (7), with the annular throat (8) at inclination angle, diffuser (9), delivery port (11), the gun barrel port of export (12), plug cone (13) and water inlet (14), described rifle shell (4) is provided with described water inlet (14) and delivery port (11), described combustion chamber (5) rear end is provided with described atomizer (1), spark plug (2) and oxygen jet (3), described combustion chamber (5) front end is provided with described plug cone (13), described plug cone (13) flare, space between described plug cone (13) surrounding and described gun barrel (10) forms described convergence section (7), described convergence section (7) front end forms the described annular throat with inclination angle (8), the described annular throat with inclination angle (8) front end is described diffuser (9), and described diffuser (9) front end is the described gun barrel port of export (12).
2. liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun according to claim 1, is characterized in that: described powder feeding pin (6) is in " L " type, and the center of (13) and convergence section (7) is just being bored in its outlet to described plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520885650.9U CN205074129U (en) | 2015-11-09 | 2015-11-09 | Liquid fuel send in axle center whitewashed circumferential weld stopper formula supersonic speed spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520885650.9U CN205074129U (en) | 2015-11-09 | 2015-11-09 | Liquid fuel send in axle center whitewashed circumferential weld stopper formula supersonic speed spray gun |
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| Publication Number | Publication Date |
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| CN205074129U true CN205074129U (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520885650.9U Active CN205074129U (en) | 2015-11-09 | 2015-11-09 | Liquid fuel send in axle center whitewashed circumferential weld stopper formula supersonic speed spray gun |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289913A (en) * | 2015-11-09 | 2016-02-03 | 郑州立佳热喷涂机械有限公司 | Liquid fuel axis powder feeding circular seam plug type supersonic speed spray gun |
-
2015
- 2015-11-09 CN CN201520885650.9U patent/CN205074129U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289913A (en) * | 2015-11-09 | 2016-02-03 | 郑州立佳热喷涂机械有限公司 | Liquid fuel axis powder feeding circular seam plug type supersonic speed spray gun |
| CN105289913B (en) * | 2015-11-09 | 2018-01-05 | 郑州立佳热喷涂机械有限公司 | Liquid fuel axle center powder feeding circumferential weld plug supersonic spray gun |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |