CN2325653Y - Jetting and suction type welding torches using LPG or natural gas as fuel - Google Patents
Jetting and suction type welding torches using LPG or natural gas as fuel Download PDFInfo
- Publication number
- CN2325653Y CN2325653Y CN 98204699 CN98204699U CN2325653Y CN 2325653 Y CN2325653 Y CN 2325653Y CN 98204699 CN98204699 CN 98204699 CN 98204699 U CN98204699 U CN 98204699U CN 2325653 Y CN2325653 Y CN 2325653Y
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- China
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- welding
- nozzle
- injecting tube
- tip
- welding torch
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- Expired - Fee Related
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Abstract
The utility model relates to a jetting and suction type welding torch used for welding ferrous metal and non-ferrous metal, which is composed of a torch body and a welding nozzle which are connected together. The body of the torch body is connected with a fuel gas pipe which is communicated with an annular slot and a centre hole out of an injection nozzle, an oxygen pipe, an injection nozzle which is fixedly connected with the body, an oxygen needle valve which is in thread connection with the body, the fuel gas needle valve which is communicated with the annular slot and a jet-suction pipe which is fixedly connected with the body. The torch body is fixedly connected with a mixing gas pipe, and the mixing gas pipe is fixedly connected with a welding nozzle joint. The utility model has the characteristics that the welding nozzle is composed of a welding nozzle core which is composed of a main flame bore and an assistant slot with a certain conical angle and a welding nozzle external tube which is matched with the welding nozzle core with conicity, and therefore, the utility model has the advantages of low cost, safe production and little pollution.
Description
The utility model relates to a kind of jet absorption type liquefied gas, natural gas welding torch, is applicable to the welding of ferrous and nonferrous metals.
Since liquefied gas, natural gas burning temperature than acetylene gas ignition temperature low 500 °～600 ℃, use traditional welding torch can not satisfy the requirement of welding temperature, thereby can not weld normally.
In order to increase the inner cone temperature, to guarantee the reaching needed ignition temperature of welding when using liquefied gas, natural gas, the utility model provides a kind of jet absorption type liquefied gas, natural gas welding torch.
Task of the present utility model is finished like this: be to be connected and composed by welding torch body and tip.The welding torch body is mainly by main body, the Gas Pipe that inclined hole by main body is communicated with outer annular groove of nozzle and centre bore respectively, oxygen hose, the screw of main body is connected with nozzle, opens and closes the oxygen needle-valve in nozzle center hole, the combustion gas needle-valve that is communicated with annular groove, each needle-valve valve rod and handwheel are threaded respectively, by the injecting tube nut injecting tube and main body are connected, injecting tube one end and mixture pipe are connected, and each movable part is made of sealings such as rubber rings.The mixture pipe other end and tip joint are connected, it is characterized in that, the aperture of strengthening injecting tube is to increase air velocity and throughput, tip by main flame-hole and around its center line of being provided be the welding mouth core that the auxiliary tank of certain cone angle constitutes and the tip overcoat that is taper fit with it constitutes, so that the flame of the flame of auxiliary tank and main flame-hole is drawn close, make main flame be with one deck heat-insulation layer outward, and prevent that temperature from descending, and reached the requirement of welding temperature.
Fig. 1 is the partial sectional view of the utility model structure, and Fig. 2 is the A-A cutaway view of Fig. 1, and Fig. 3 is a vertical view of the present utility model.
In conjunction with the accompanying drawings structure of the present utility model and embodiment are described as follows: the utility model is to be connected and composed by tip joint 2 and tip by the welding torch body.The welding torch body is by main body 7, Gas Pipe 13b and oxygen hose 13a that inclined hole by main body is communicated with outer annular groove of nozzle and centre bore respectively, the screw of main body is connected with nozzle 6, oxygen needle-valve 8, the combustion gas needle-valve 15a that is communicated with annular groove, each needle-valve valve rod and handwheel (11,15) be threaded respectively, 4 of nozzle left end and injecting tubes are pyramidal space, injecting tube nut 5 is connected injecting tube and main body, one end and the mixture pipe 3 of injecting tube are connected, each movable part is with rubber ring etc. (17,18,19) sealing constitutes, the other end of mixture pipe and tip joint 2 are connected, in order to increase the ignition temperature of inner cone, 0.2～0.4mm is strengthened in the aperture of injecting tube; Tip by main flame-hole and around 6～16 its center lines of uniform setting be welding mouth core 1a that the auxiliary tank of 10 °～20 ° of cone angles forms and reach the tip overcoat 1b that is 15 °～25 ° of taper fit with it and constitute, auxiliary groove width is 0.25～0.6mm, and groove depth is 0.4～1.5mm.
The utility model has the advantages that: 1, adopt the utility model to replace the acetylene gas welding torch, cost falls Low by 80 50 percent to percent; 2, owing to liquefied gas burning-point height, chemical property is more stable, So safer reliable; 3, three-waste free pollution environment.
Claims (3)
1, a kind of jet absorption type liquefied gas, the natural gas welding torch, connected and composed by tip joint and tip by the welding torch body: the welding torch body is by main body (7), Gas Pipe (13b) and oxygen hose (13a) that inclined hole by main body is communicated with outer annular groove of nozzle and centre bore respectively, the screw of main body is connected with nozzle (6) and oxygen needle-valve (8), the combustion gas needle-valve (15a) that is communicated with annular groove, each needle-valve valve rod and handwheel (11,15) be threaded respectively, nozzle left end and injecting tube are pyramidal space between (4), injecting tube nut (5) is connected injecting tube (4) and main body (7), one end of injecting tube and mixture pipe (3) are connected, each movable part is with rubber ring etc. (17,18,19) sealing constitutes, it is characterized in that, strengthen the aperture of injecting tube (4); The welding mouth core (1a) that tip is made up of the auxiliary tank of main flame-hole and uniform setting on every side reaches the tip overcoat (1b) that is taper fit with it and constitutes.
2, by the described jet absorption type liquefied gas of claim 1, natural gas welding torch, it is characterized in that 0.2～0.4mm has been strengthened in the aperture of injecting tube.
3, press claim 1 and 2 described jet absorption type liquefied gas, natural gas welding torch, it is characterized in that auxiliary tank is 6～16, its center line is 10 °～20 ° cone angles, and groove width is 0.25～0.6mm, and groove depth is 0.4～1.5mm; Welding mouth core (1a) is 15 °～25 ° with the tapering that cooperates of tip overcoat (1b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98204699 CN2325653Y (en) | 1998-05-25 | 1998-05-25 | Jetting and suction type welding torches using LPG or natural gas as fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98204699 CN2325653Y (en) | 1998-05-25 | 1998-05-25 | Jetting and suction type welding torches using LPG or natural gas as fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2325653Y true CN2325653Y (en) | 1999-06-23 |
Family
ID=33961249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98204699 Expired - Fee Related CN2325653Y (en) | 1998-05-25 | 1998-05-25 | Jetting and suction type welding torches using LPG or natural gas as fuel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2325653Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332147C (en) * | 2004-06-16 | 2007-08-15 | 王培望 | Movable valves |
| CN104874884A (en) * | 2015-06-05 | 2015-09-02 | 中国电子科技集团公司第三十八研究所 | Combined type multihole welding tip for manual brazing of thin-walled aluminum and copper alloy waveguide tubes |
| CN106216804A (en) * | 2016-08-29 | 2016-12-14 | 无锡市锡山区仁景模具厂 | A kind of use safe flame cutting machine |
-
1998
- 1998-05-25 CN CN 98204699 patent/CN2325653Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332147C (en) * | 2004-06-16 | 2007-08-15 | 王培望 | Movable valves |
| CN104874884A (en) * | 2015-06-05 | 2015-09-02 | 中国电子科技集团公司第三十八研究所 | Combined type multihole welding tip for manual brazing of thin-walled aluminum and copper alloy waveguide tubes |
| CN104874884B (en) * | 2015-06-05 | 2017-01-25 | 中国电子科技集团公司第三十八研究所 | Combined type multihole welding tip for manual brazing of thin-walled aluminum and copper alloy waveguide tubes |
| CN106216804A (en) * | 2016-08-29 | 2016-12-14 | 无锡市锡山区仁景模具厂 | A kind of use safe flame cutting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |