CN214168098U - Air combustion-supporting supersonic flame spray gun - Google Patents
Air combustion-supporting supersonic flame spray gun Download PDFInfo
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- CN214168098U CN214168098U CN202023114882.4U CN202023114882U CN214168098U CN 214168098 U CN214168098 U CN 214168098U CN 202023114882 U CN202023114882 U CN 202023114882U CN 214168098 U CN214168098 U CN 214168098U
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Abstract
The utility model discloses an air combustion-supporting type supersonic speed flame spray gun, its combustion chamber is located the inner chamber front portion of body of a gun, the inner chamber rear portion of body of a gun has set gradually ceramic combustion board, outer shunt, shunt connector and interior shunt from head to tail, be provided with the air runner along the axis on the body of a gun, be provided with the propane runner along the axis on the interior shunt, shunt connector and interior shunt junction are provided with the mist runner, air runner and propane runner respectively with mist runner intercommunication, interior shunt, shunt connector and outer shunt all are provided with along the axle center and send the powder runner, be provided with air intlet, propane import and send the powder needle mouth on the gun tail connector respectively. The utility model discloses a change of system architecture for the cost reduction of consumption oxygen has suitably reduced flame temperature and has solved the problem that the barrel glues the powder.
Description
The technical field is as follows:
the utility model relates to a hot spraying equipment especially relates to an air combustion-supporting type supersonic speed flame spray gun.
Background art:
the prior supersonic flame spray gun, whether a gas fuel spray gun or a liquid fuel spray gun, uses a pure oxygen combustion-supporting and water circulation cooling form. Due to the limitation of the conditions of the spray gun, the fuel consumption cost is high, the energy utilization rate is low, and partial heat energy is consumed by the water cooling circulation of the spray gun. Although supersonic flame guns can deliver very high density, high bond strength and hardness coatings, they still have their own insurmountable drawbacks: the gun barrel is easy to adhere to powder; the spraying material still undergoes a certain degree of oxidative decomposition; the water cooling spray gun has low energy utilization rate; the cost is high.
The utility model has the following contents:
the utility model discloses the technical problem that will solve is: overcomes the defects of the prior art, and provides the air combustion-supporting supersonic flame spray gun which has reasonable design, can reduce oxygen consumption, solves the problem of barrel adhesion and improves the spraying effect.
The technical scheme of the utility model is that:
the air combustion-supporting supersonic flame spray gun comprises a gun sleeve, a gun barrel, a gun body, a combustion chamber, an ignition spark plug and a gun tail connector, wherein the combustion chamber is positioned at the front part of an inner cavity of the gun body, the rear part of the inner cavity of the gun body is sequentially provided with a ceramic combustion plate, an outer shunt, a shunt connector and an inner shunt from head to tail, the gun body is provided with an air flow channel along an axis, the inner shunt is provided with a propane flow channel along the axis, a mixed gas flow channel is arranged at the joint of the shunt connector and the inner shunt, the air flow channel and the propane flow channel are respectively communicated with the mixed gas flow channel, the inner shunt, the shunt connector and the outer shunt are respectively provided with a powder feeding flow channel along the axis, the gun tail connector is respectively provided with an air inlet, a propane inlet and a powder feeding needle port, and the air inlet, the propane inlet and the powder feeding needle port are respectively communicated with the air flow channel, The propane flow passage is communicated with the powder feeding flow passage.
The gun sleeve and the gun barrel are fixedly sleeved and a hollow clamping sleeve is arranged between the gun sleeve and the gun barrel, the tail end of the gun sleeve is connected with the head end of the gun body through a locking nut, an air outlet is formed in the head end of the hollow clamping sleeve, and the tail end of the hollow clamping sleeve is communicated with the air flow channel.
The gun body tail end is connected with the gun tail connector through a bolt, the gun body and the gun tail connector are both triangular prism structures, the number of the air flow channels and the number of the air inlets are two, the air flow channels and the air inlets are respectively located at two edges of the gun body, and the number of the propane flow channels and the number of the propane inlets are one and are respectively located between the two air inlets.
And a gap is formed between the combustion chamber and the gun body, and the gap is respectively communicated with the air flow channel and the mixed gas flow channel.
The utility model has the advantages that:
1. the utility model discloses can reduce the content of the oxide in the coating for the density of coating obtains further promotion, and then improves the spraying quality of coating.
2. The utility model discloses a change of system architecture for the cost reduction of consumption oxygen has suitably reduced flame temperature and has solved the problem that the barrel glues the powder.
3. The utility model greatly improves the source utilization rate; the heat enthalpy value of the spray gun is very high, the working efficiency of the spray gun is greatly increased, and the manufacturing efficiency of the coating is improved.
4. The utility model relates to a rationally, can reduce oxygen consumption, solve the barrel and bond and improve the spraying effect, its application scope is wide, has good economic benefits after promoting.
Description of the drawings:
FIG. 1 is a schematic structural view of an air combustion-supporting supersonic flame spray gun;
fig. 2 is a right side view of the air-assisted supersonic flame spray gun shown in fig. 1.
The specific implementation mode is as follows:
example (b): referring to fig. 1-2, there are shown 1-a locking nut, 2-an ignition spark plug, 3-an air channel, 4-a body, 5-a mixed gas channel, 6-a breech connector, 7-a propane channel, 8-a powder feeding needle port, 9-an internal splitter, 10-a splitter connector, 11-an external splitter, 12-a ceramic combustion plate, 13-a combustion chamber, 14-a barrel, 15-a gun case, 16-an air inlet, and 17-a propane inlet.
Air combustion-supporting type supersonic speed flame spray gun, including gun case 15, barrel 14, body of a gun 4, combustion chamber 13, ignition spark plug 2 and rifle tail connector 6, wherein: the combustion chamber 13 is positioned in the front of an inner cavity of the gun body 4, the rear part of the inner cavity of the gun body 4 is sequentially provided with a ceramic combustion plate 12, an outer splitter 11, a splitter connector 10 and an inner splitter 9 from head to tail, an air flow channel 3 is arranged on the gun body 4 along an axis, a propane flow channel 7 is arranged on the inner splitter 9 along the axis, a mixed gas flow channel 5 is arranged at the joint of the splitter connector 10 and the inner splitter 9, the air flow channel 3 and the propane flow channel 7 are respectively communicated with the mixed gas flow channel 5, the inner splitter 9, the splitter connector 10 and the outer splitter 11 are respectively provided with a powder feeding flow channel along the axis, an air inlet 16, a propane inlet 17 and a powder feeding needle port 8 are respectively arranged on the gun tail connector 6, and the air inlet 16, the propane inlet 17 and the powder feeding needle port 8 are respectively communicated with the air flow channel 3, the propane flow channel 7 and the powder feeding flow channel.
The preferred scheme is as follows: the gun case 15 and the barrel 14 are fixedly sleeved and connected, a hollow clamping sleeve is arranged between the gun case 15 and the barrel 14, the tail end of the gun case 15 is connected with the head end of the gun body 4 through a locking nut 1, an air outlet is formed in the head end of the hollow clamping sleeve, and the tail end of the hollow clamping sleeve is communicated with the air flow channel 3.
The tail end of the gun body 4 is connected with the gun tail connector 6 through a bolt, the gun body 4 and the gun tail connector 6 are both triangular prism structures, the number of the air flow channels 3 and the number of the air inlets 16 are two, the air flow channels are respectively located at two edges of the gun body 4, the number of the propane flow channels 7 and the number of the propane inlets 17 are one, and the propane flow channels are respectively located between the two air inlets 16.
A gap is reserved between the combustion chamber 13 and the gun body 4, and the gap is respectively communicated with the air flow passage 3 and the mixed gas flow passage 5, so that the mixed flow of the gas is realized.
The working process of the spray gun comprises the following steps:
1. air, combustible gas (generally propane) and powder (powder is fed by taking the powder as a center and is directly fed into a combustion chamber) are respectively connected to the interface of the gun tail connector 6;
2. air enters the gun and enters the hollow jackets of the gun barrel 14 and the gun sleeve 15 along the air flow channel 3 of the gun body 4, one part of the air is directly blown out from an air outlet, the other part of the air flows into the interlayer gap between the combustion chamber 13 and the gun body 4 to form a cooling path of the air, and then the air enters a cavity between the flow dividing connecting body 10 and the inner flow divider 9 through the hole on the flow dividing connecting body 10;
3. combustible gas propane enters from an inlet, enters a mixed gas channel 5 between an inner splitter 9 and a flow splitting connecting body 10 through a propane channel 7 on the inner splitter 9, and is mixed with air to form mixed gas;
4. the mixed gas enters the cavities of the outer splitter 11 and the ceramic combustion plate 12 through the outer splitter 11, and finally enters the combustion chamber 13 uniformly through the pores of the ceramic combustion plate 12;
5. a high-pressure flame flow is formed in the combustion chamber 13 by controlling the ignition plug 2 inserted into the combustion chamber 13 to ignite it;
6. powder enters from a powder feeding needle opening 8 of the gun tail connector 6 and enters into a combustion chamber 13 from a powder feeding flow passage at the axis of the spray gun;
7. the high pressure flame stream in the combustion chamber 13 surrounds the powder and accelerates the flame stream through the throat of the combustion chamber 13 into the barrel 14;
the gas is accelerated again in the gun tube 14 through the contraction and re-expansion of the gun tube, and forms supersonic flame flow to the surface of the workpiece to form a compact coating.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments still fall within the scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides an air combustion-supporting type supersonic speed flame spray gun, includes gun case, barrel, body of a gun, combustion chamber, ignition spark plug and rifle tail connector, characterized by: the combustion chamber is located the inner chamber front portion of body of a gun, ceramic combustion plate, outer shunt, shunt connector and interior shunt have set gradually from head to tail at the inner chamber rear portion of body of a gun, be provided with the air runner along the axis on the body of a gun, be provided with the propane runner along the axis on the interior shunt, shunt connector and interior shunt junction are provided with the mist runner, air runner and propane runner respectively with the mist runner intercommunication, interior shunt, shunt connector and outer shunt all are provided with the powder feeding runner along the axle center, be provided with air intlet, propane import and powder feeding needle mouth on the connector of a gun respectively, air intlet, propane import and powder feeding needle mouth respectively with air runner, propane runner and powder feeding runner intercommunication.
2. The air-assisted supersonic flame lance according to claim 1, wherein: the gun sleeve and the gun barrel are fixedly sleeved and a hollow clamping sleeve is arranged between the gun sleeve and the gun barrel, the tail end of the gun sleeve is connected with the head end of the gun body through a locking nut, an air outlet is formed in the head end of the hollow clamping sleeve, and the tail end of the hollow clamping sleeve is communicated with the air flow channel.
3. The air-assisted supersonic flame lance according to claim 1, wherein: the gun body tail end is connected with the gun tail connector through a bolt, the gun body and the gun tail connector are both triangular prism structures, the number of the air flow channels and the number of the air inlets are two, the air flow channels and the air inlets are respectively located at two edges of the gun body, and the number of the propane flow channels and the number of the propane inlets are one and are respectively located between the two air inlets.
4. The air-assisted supersonic flame lance according to claim 1, wherein: and a gap is formed between the combustion chamber and the gun body, and the gap is respectively communicated with the air flow channel and the mixed gas flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023114882.4U CN214168098U (en) | 2020-12-22 | 2020-12-22 | Air combustion-supporting supersonic flame spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023114882.4U CN214168098U (en) | 2020-12-22 | 2020-12-22 | Air combustion-supporting supersonic flame spray gun |
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| Publication Number | Publication Date |
|---|---|
| CN214168098U true CN214168098U (en) | 2021-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023114882.4U Active CN214168098U (en) | 2020-12-22 | 2020-12-22 | Air combustion-supporting supersonic flame spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214168098U (en) |
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2020
- 2020-12-22 CN CN202023114882.4U patent/CN214168098U/en active Active
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