CN214390689U - Supersonic flame spray gun - Google Patents
Supersonic flame spray gun Download PDFInfo
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- CN214390689U CN214390689U CN202022810605.0U CN202022810605U CN214390689U CN 214390689 U CN214390689 U CN 214390689U CN 202022810605 U CN202022810605 U CN 202022810605U CN 214390689 U CN214390689 U CN 214390689U
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Abstract
The utility model relates to a supersonic flame spray gun, which comprises a first pipe body, a second pipe body and a third pipe body, wherein one end of the first pipe body is inserted into the second pipe body to form a first insertion section, and one end of the second pipe body, which is far away from the first pipe body, is inserted into the third pipe body to form a second insertion section; a first annular sealing plate is arranged between one end of the second pipe body and the circumferential side surface of the first pipe body, and a second annular sealing plate is arranged between one end of the third pipe body and the circumferential side surface of the second pipe body; the first insertion section, the first annular plugging plate and the second pipe body are enclosed to form a first annular chamber; the second insertion section, the second annular plugging plate and the third pipe body are enclosed to form a second annular chamber; a feeding pipe communicated with the first annular chamber is arranged on the second pipe body, and an air inlet pipe communicated with the second annular chamber is arranged on the third pipe body; an ignition needle is arranged at one end of the third pipe body, which is far away from the second pipe body; the air, the spraying material and the fuel gas are fully mixed, burnt and melted, and sprayed to the surface of the base layer.
Description
Technical Field
The utility model belongs to the technical field of flame spray gun, concretely relates to supersonic speed flame spray gun.
Background
Thermal spraying is a method of heating a spraying material to a molten or semi-molten state by using a heat source, and spraying and depositing the spraying material on the surface of a pretreated substrate at a certain speed to form a coating. The working surface with special performance is formed on the surface of the base material, so that the surface of the base material has one or more of good performances of corrosion resistance, wear resistance, friction reduction, high temperature resistance, oxidation resistance, heat insulation, electric conduction and the like, the original performance of the base material is reserved, and the purpose of saving the spraying material is achieved. Wherein, the flame spray gun is used for heating the spraying material to a molten or semi-molten state to spray the spraying material to the surface of the base material; the thermal spraying of the substrate is realized.
The Chinese utility model patent with the publication number of CN202070436U discloses a supersonic flame spray gun; the method comprises the following steps: the device comprises a powder injector, a spark plug, a honeycomb ceramic plate, a combustion chamber, a nozzle, a shell, a gas mixer and a rear cover, wherein the rear cover is provided with a fuel inlet and a powder injection port, and an air inlet is arranged at the joint of the combustion chamber and the nozzle; the solid particle spraying is realized to obtain high-quality metal and metal ceramic functional coatings. However, when the supersonic flame spray gun is used, the powder, the fuel gas and the air are not fully mixed, and the coating quality of the surface of the substrate is reduced.
SUMMERY OF THE UTILITY MODEL
In order to improve the coating quality of the surface of the substrate, the utility model provides a supersonic flame spray gun; in order to achieve the above object, the utility model discloses a technical scheme specifically as follows:
a supersonic flame spray gun comprises a first pipe body, a second pipe body and a third pipe body, wherein one end of the first pipe body is inserted into the second pipe body to form a first insertion section, and one end, far away from the first pipe body, of the second pipe body is inserted into the third pipe body to form a second insertion section; a first annular sealing plate is arranged between one end of the second pipe body and the circumferential side surface of the first pipe body, and a second annular sealing plate is arranged between one end of the third pipe body and the circumferential side surface of the second pipe body; the first insertion section, the first annular plugging plate and the second pipe body are enclosed to form a first annular chamber; the second insertion section, the second annular plugging plate and the third pipe body are enclosed to form a second annular chamber; a feeding pipe communicated with the first annular chamber is arranged on the second pipe body, and an air inlet pipe communicated with the second annular chamber is arranged on the third pipe body; an ignition needle is arranged at one end, far away from the second tube body, of the third tube body.
The utility model discloses a supersonic speed flame spray gun's beneficial effect: air is filled into the second pipe body through the first pipe body, the spraying material enters the second pipe body through the feeding pipe, and the air is mixed with the spraying material in the second pipe body and is filled into the third pipe body under the action of air flow; the gas enters the third pipe body through the gas inlet pipe, and the gas flow carrying the spraying material is mixed with the gas in the third pipe body; and under the ignition action of the ignition needle, the mixed gas is ignited, the gas is combusted, and the spraying material is melted and sprayed to the surface of the base layer.
Furthermore, the first insertion section and the second insertion section are both reducing sections, the first insertion section gradually reduces the diameter along the direction away from the first annular plugging plate, and the second insertion section gradually reduces the diameter along the direction away from the second annular plugging plate.
Has the advantages that: the first insertion section and the second insertion section are set to be reducing sections, pipe holes of the first pipe body and the second pipe body are reduced, pressure of air flow is increased, and mixing of spraying materials, air, fuel gas and air flow is facilitated.
Furthermore, the number of the feeding pipes is at least 2, the feeding pipes are uniformly arranged at intervals along the circumferential direction of the second pipe body, and the axial direction of the air inlet pipe and the radial direction of the second pipe body form an included angle of 30-45 degrees and incline towards the direction far away from the first annular plugging plate.
Has the advantages that: the number of the feeding pipes is at least 2, so that the spraying materials can be uniformly filled into the second pipe body, and the air and the spraying materials can be uniformly mixed; the feeding pipe is obliquely arranged, so that the spraying material can flow into the second pipe body conveniently.
Furthermore, the number of the air inlet pipes is at least 2, the air inlet pipes are uniformly arranged along the circumferential direction of the third pipe body at intervals, and the axial direction of each air inlet pipe and the radial direction of the third pipe body form an included angle of 30-45 degrees and incline towards the direction far away from the second annular plugging plate.
Has the advantages that: the number of the air inlet pipes is at least 2, so that the gas can be uniformly filled into the third pipe body, the gas and the air flow can be uniformly mixed, and the air inlet pipes are obliquely arranged, so that the gas can be filled into the third pipe body.
Further, a material mixing mechanism is arranged on one side, far away from the first insertion section, in the second pipe body, and comprises a support frame, a rotating shaft and a helical blade; the two ends of the support frame are respectively fixed in the second pipe body, the rotating shaft is rotatably assembled on the support frame, and one end of the spiral blade is fixed on the circumferential side face of the rotating shaft.
Has the advantages that: when the air current passes through the mixing mechanism, the air current drives the helical blade to rotate, so that the helical blade forms helical air current, and the uniform mixing of the spraying material and the air current is facilitated.
Furthermore, one end of the third pipe body, which is far away from the second insertion section, is a reducing section, and the diameter of the third pipe body is gradually reduced along the direction far away from the second pipe body; the number of the ignition needles is a plurality, and the ignition needles are evenly arranged at intervals along the circumferential direction of the third pipe body.
Has the advantages that: the third pipe body is far away from the second insertion part and is arranged into a reducing section, the pore diameter of the pipe hole of the third pipe body is reduced, the pressure is increased, and the jet of airflow is facilitated; the ignition needles are arranged in a plurality of numbers, which is beneficial to the ignition of the flame spray gun.
Further, a spiral guide plate is arranged on the inner surface of the reducing section of the third pipe body.
Has the advantages that: the spiral guide plate guides the airflow to form spiral airflow, so that the fuel gas and the airflow are uniformly mixed and sprayed.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the supersonic flame spray gun of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a front view of FIG. 1;
fig. 4 is an enlarged view at B-B in fig. 3.
Reference numbers in the figures: 1-a first pipe body, 2-a second pipe body, 3-a third pipe body, 4-a first insertion section, 5-a second insertion section, 6-a first annular plugging plate, 7-a second annular plugging plate, 8-a first annular chamber, 9-a second annular chamber, 10-a feed pipe, 11-an air inlet pipe, 12-an ignition needle, 13-a support frame, 14-a rotating shaft, 15-a rotating blade and 16-a spiral guide plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:
the specific structure of the embodiment of the supersonic flame spray gun of the utility model is shown in fig. 1-4, and comprises a first pipe body 1, a second pipe body 2 and a third pipe body 3, wherein one end of the first pipe body 1 is inserted into the second pipe body 2 to form a first insertion section 4, and one end of the second pipe body 2 far away from the first pipe body 1 is inserted into the third pipe body 3 to form a second insertion section 5; a first annular sealing plate 6 is arranged between one end of the second pipe body 2 and the circumferential side surface of the first pipe body 1, and a second annular sealing plate 7 is arranged between one end of the third pipe body 3 and the circumferential side surface of the second pipe body 2; the first insertion section 4, the first annular plugging plate 6 and the second pipe body 2 are enclosed to form a first annular chamber 8; the second insertion section 5, the second annular closure plate 7 and the third tubular body 3 enclose a second annular chamber 9. In this embodiment, the first insertion section 4 and the second insertion section 5 are both diameter reduction sections, the first insertion section 4 gradually reduces the diameter along the direction away from the first annular plugging plate 6, and the second insertion section 5 gradually reduces the diameter along the direction away from the second annular plugging plate 7; the first inserting section 4 and the second inserting section 5 are set to be reducing sections, pipe holes of the first pipe body 1 and the second pipe body 2 are reduced, pressure of air flow is increased, and mixing of spraying materials, air, fuel gas and the air flow is facilitated. In other embodiments, only one of the first and second insertion sections may be provided as the reduced diameter section.
A feed pipe 10 communicating with the first annular chamber 8 is provided on the second tubular body 2. In this embodiment, the number of the feeding pipes 10 is specifically 3, the feeding pipes are uniformly arranged at intervals along the circumferential direction of the second pipe body 2, and the axial direction of the air inlet pipe 11 forms an included angle of 45 degrees with the radial direction of the second pipe body 2 and inclines towards the direction far away from the first annular plugging plate 6; 3 feeding pipes 10 are arranged, so that the spraying materials can be uniformly filled into the second pipe body 2, and the air and the spraying materials can be uniformly mixed; the inclined arrangement of the feed tube 10 facilitates the flow of the coating material into the second body 2. In other embodiments, the number of the feeding pipes is specifically 2 or more than 4, the feeding pipes are uniformly arranged at intervals along the circumferential direction of the second pipe body, and an included angle between the axial direction of each air inlet pipe and the radial direction of the second pipe body is 30 degrees or 40 degrees.
An inlet pipe 11 communicating with the second annular chamber 9 is provided in the third pipe body 3. In this embodiment, the number of the air inlet pipes 11 is specifically 3, the air inlet pipes are uniformly arranged at intervals along the circumferential direction of the third pipe body 3, and the axial direction of the air inlet pipes 11 forms an included angle of 45 degrees with the radial direction of the third pipe body 3 and inclines in a direction away from the second annular blocking plate 7; set 3 with intake pipe 11, be favorable to the gas evenly to fill in the third body 3, be favorable to the misce bene of gas and air current, set up the slope of intake pipe 11, be favorable to the gas to fill in the third body 3. In other embodiments, the number of the air inlet pipes is specifically 2 or more than 4, the air inlet pipes are uniformly arranged at intervals along the circumferential direction of the second pipe body, and an included angle between the axial direction of each air inlet pipe and the radial direction of the third pipe body is 30 degrees or 40 degrees.
An ignition needle 12 is arranged at one end of the third tube 3 far away from the second tube 2. In the present embodiment, the number of the ignition needles 12 is several, specifically 3, and the ignition needles are uniformly spaced along the circumferential direction of the third tube 3; is beneficial to the ignition of the flame spray gun. In other embodiments, the number of ignition needles may be 1, 2 or more than 4, provided that the ignition requirements of the flame spray gun are met.
In this embodiment, a mixing mechanism is disposed on a side of the second pipe body 2 away from the first insertion section 4, and the mixing mechanism includes a support frame 13, a rotating shaft 14 and a helical blade 15; two ends of a support frame 13 are respectively fixed in the second pipe body 2, a rotating shaft 14 is rotatably assembled on the support frame 13, and one end of a spiral blade 15 is fixed on the circumferential side surface of the rotating shaft 14; when the air current passes through the mixing mechanism, the air current drives the helical blade 15 to rotate, so that the helical blade forms helical air current, and the uniform mixing of the spraying material and the air current is facilitated. One end of the third pipe body 3, which is far away from the second insertion section 5, is a reducing section, and the diameter of the third pipe body is gradually reduced along the direction far away from the second pipe body 2; the third pipe body 3 is far away from the second insertion and is arranged into a reducing section, the pore diameter of the pipe hole of the third pipe body 3 is reduced, the pressure is increased, and the jet of the airflow is facilitated. The inner surface of the reducing section of the third pipe body 3 is provided with a spiral guide plate 16, and the spiral guide plate 16 guides the air flow to form spiral air flow, so that the uniform mixing and spraying of the fuel gas and the air flow are facilitated. In other embodiments, no spiral flow deflector is disposed on the inner surface of the reduced diameter section of the third tube, or the flow deflector is elongated instead of spiral.
When the device is used, air is filled into the second pipe body 2 through the first pipe body 1, the spraying material enters the second pipe body 2 through the feeding pipe 10, the air is uniformly mixed under the action of the spraying material in the mixing mechanism in the second pipe body 2, and the air is filled into the third pipe body 3 under the action of air flow; the gas enters the third pipe body 3 through the gas inlet pipe 11, the gas flow carrying the spraying material is mixed with the gas in the third pipe body 3, and the gas is sprayed out of the third pipe body 3 under the guiding of the spiral guide plate 16; and under the ignition action of the ignition needle 12, the mixed gas is ignited, the gas is combusted, and the spraying material is melted and sprayed to the surface of the base layer.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (7)
1. A supersonic flame spray gun is characterized by comprising a first pipe body, a second pipe body and a third pipe body, wherein one end of the first pipe body is inserted into the second pipe body to form a first insertion section, and one end, far away from the first pipe body, of the second pipe body is inserted into the third pipe body to form a second insertion section; a first annular sealing plate is arranged between one end of the second pipe body and the circumferential side surface of the first pipe body, and a second annular sealing plate is arranged between one end of the third pipe body and the circumferential side surface of the second pipe body; the first insertion section, the first annular plugging plate and the second pipe body are enclosed to form a first annular chamber; the second insertion section, the second annular plugging plate and the third pipe body are enclosed to form a second annular chamber; a feeding pipe communicated with the first annular chamber is arranged on the second pipe body, and an air inlet pipe communicated with the second annular chamber is arranged on the third pipe body; an ignition needle is arranged at one end, far away from the second tube body, of the third tube body.
2. The supersonic flame lance of claim 1, wherein the first and second insert sections are each reduced diameter sections, the first insert section being progressively reduced in diameter in a direction away from the first annular containment plate, the second insert section being progressively reduced in diameter in a direction away from the second annular containment plate.
3. The supersonic flame lance of claim 2, wherein the number of the inlet pipes is at least 2, the inlet pipes are uniformly spaced along the circumference of the second pipe body, and the axial direction of the inlet pipes forms an included angle of 30-45 degrees with the radial direction of the second pipe body and inclines away from the first annular blocking plate.
4. The supersonic flame lance of claim 2, wherein the number of the inlet pipes is at least 2, the inlet pipes are uniformly spaced along the circumference of the third tubular body, and the axial direction of the inlet pipes forms an angle of 30 ° to 45 ° with the radial direction of the third tubular body, and the inlet pipes are inclined in a direction away from the second annular blocking plate.
5. The supersonic flame spray gun of claim 1, wherein a mixing mechanism is disposed within the second tube on a side remote from the first insert section, the mixing mechanism comprising a support frame, a shaft, and a helical blade; the two ends of the support frame are respectively fixed in the second pipe body, the rotating shaft is rotatably assembled on the support frame, and one end of the spiral blade is fixed on the circumferential side face of the rotating shaft.
6. The supersonic flame lance of claim 1, wherein the end of the third tubular body remote from the second insert section is a reduced diameter section that gradually reduces in a direction away from the second tubular body; the number of the ignition needles is a plurality, and the ignition needles are evenly arranged at intervals along the circumferential direction of the third pipe body.
7. A supersonic flame lance as claimed in claim 1, wherein a helical deflector is provided on the inner surface of the reduced diameter section of the third tube body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022810605.0U CN214390689U (en) | 2020-11-30 | 2020-11-30 | Supersonic flame spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022810605.0U CN214390689U (en) | 2020-11-30 | 2020-11-30 | Supersonic flame spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214390689U true CN214390689U (en) | 2021-10-15 |
Family
ID=78035891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022810605.0U Active CN214390689U (en) | 2020-11-30 | 2020-11-30 | Supersonic flame spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214390689U (en) |
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2020
- 2020-11-30 CN CN202022810605.0U patent/CN214390689U/en active Active
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