CN210267224U - Gas-air mixer for flame welding device with air replacing oxygen - Google Patents
Gas-air mixer for flame welding device with air replacing oxygen Download PDFInfo
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- CN210267224U CN210267224U CN201921004025.3U CN201921004025U CN210267224U CN 210267224 U CN210267224 U CN 210267224U CN 201921004025 U CN201921004025 U CN 201921004025U CN 210267224 U CN210267224 U CN 210267224U
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- compressed air
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Abstract
The utility model provides a flame welding is gas air mixer for device of air replacement oxygen, it relates to the welding technology field, concretely relates to flame welding is gas air mixer for device of air replacement oxygen. It contains compressed air entry, gas entry, air and penetrates suction nozzle, fire extinguishing gas entry, mixes and penetrates the suction body base member, pipeline, mist outlet, mixing chamber of giving vent to anger, the mixture penetrate the inside of suction body base member and be provided with compressed air entry, gas entry, air and penetrate suction nozzle, fire extinguishing gas entry, pipeline, mist outlet, mixing chamber of giving vent to anger, compressed air entry's right side is penetrated the suction nozzle with the air and is connected. After the technical scheme is adopted, the utility model discloses beneficial effect does: the original design scheme that fuel gas is used as jet power is changed, compressed air is used as jet power, fuel gas consumption is obviously reduced, and flame pressure is obviously increased; has the advantages of stable flame, difficult external influence on process parameters and thorough elimination of oxygen.
Description
Technical Field
The utility model relates to the field of welding technique, concretely relates to gas air mixer for flame welding device that oxygen was replaced to air.
Background
In the prior art, compressed oxygen is generally matched with fuel gas to realize flame welding, and enterprises try to realize welding by matching fuel gas with air instead of oxygen. But because principle design and pipe fitting part design problem cause poor stability in the use, the welding effect is far less than oxygen gas mixture welding, therefore development is limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a gas-air mixer for flame welding device, which replaces oxygen with air, and changes the original design scheme of using gas as injection power, and uses compressed air as injection power, so that the gas consumption is obviously reduced, and the flame pressure is obviously increased; the design of the mixing chamber is changed, the traditional idea of natural mixing in a closed cavity is broken through, and the gas and the compressed air are forced to be mixed in a rotating way by utilizing the pressure difference in a specially designed injection and suction body, so that the full and uniform mixing is ensured; has the advantages of stable flame, difficult external influence on process parameters and thorough elimination of oxygen.
In order to achieve the above purpose, the utility model adopts the following technical scheme: it comprises a compressed air inlet 1, a gas inlet 2, an air injection suction nozzle 3, a fire extinguishing gas inlet 4, a mixed injection suction body matrix 5, an air outlet pipeline 6, a mixed gas outlet 7 and a mixing chamber 8, wherein the mixed injection suction body matrix 5 is internally provided with the compressed air inlet 1, the gas inlet 2, the air injection suction nozzle 3, the fire extinguishing gas inlet 4, the air outlet pipeline 6, the mixed gas outlet 7 and the mixing chamber 8, the right side of the compressed air inlet 1 is connected with the air injection suction nozzle 3, the outer side of the air injection suction nozzle 3 is provided with the mixing chamber 8, the right side of the air injection suction nozzle 3 is connected with the air outlet pipeline 6, the right side of the air outlet pipeline 6 is connected with the mixed gas outlet 7, the gas inlet 2 is arranged below the compressed air inlet 1, the right side of the gas inlet 2 is connected with the mixing chamber 8, the fire extinguishing gas inlet 4 is arranged on the lower end surface of the mixed injection suction, the fire suppressing gas inlet 4 is connected to the mixing chamber 8.
The gas inlet 2 is connected with the mixing chamber 8 through a pipeline.
The fire extinguishing gas inlet 4 is connected with the mixing chamber 8 through a pipeline.
The gas inlet 2 and the fire extinguishing gas inlet 4 are connected through a pipeline.
The utility model discloses a theory of operation: it adopts a jet pump type mixing chamber structure specially designed based on hydromechanics, its key structure is jet pump, the jet pump is a pump without moving component, it utilizes the energy of one fluid to pump another fluid, when the jet pump is worked, the high-pressure air can be jetted out by jet pump nozzle with flow rate V1 at high speed, continuously takes away the gas of suction chamber, and forms low-pressure zone in the suction chamber, the pumped gas can be fed into the suction chamber with flow rate V2 under the action of air pressure, two fluids can be undergone the processes of air flow entanglement and mixing in the throat tube, the speed of working fluid can be reduced, and the speed of sucked fluid can be increased until the outlet of throat tube, and the flow rate and pressure of both can be made into identical, then the above-mentioned two fluids can be converted into pressure energy by means of diffusion tube, and transferred into the nozzle of welding torch by means of pipeline, and mixed combustion can be implemented at the nozzle, and the compressed air can be fed into the compressor inlet, the gas gets into from gas entry 2, and both penetrate suction nozzle 3 internal mixing at the air, and the mist uses compressed air as the carrier, high-speed blowout cavity, in the design of current product gas circuit, is the gas and inhales the air from the surrounding environment, and fire extinguishing gas gets into from fire extinguishing gas entry 4, and the gas can not remain in mixing chamber 8 when can guaranteeing to put out a fire, has improved system security.
After the technical scheme is adopted, the utility model discloses beneficial effect does: the original design scheme that fuel gas is used as jet power is changed, compressed air is used as jet power, fuel gas consumption is obviously reduced, and flame pressure is obviously increased; the design of the mixing chamber is changed, the traditional idea of natural mixing in a closed cavity is broken through, and the gas and the compressed air are forced to be mixed in a rotating way by utilizing the pressure difference in a specially designed injection and suction body, so that the full and uniform mixing is ensured; has the advantages of stable flame, difficult external influence on process parameters and thorough elimination of oxygen.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: the fire extinguishing device comprises a compressed air inlet 1, a fuel gas inlet 2, an air injection nozzle 3, a fire extinguishing gas inlet 4, a mixed injection and suction body matrix 5, an air outlet pipeline 6, a mixed gas outlet 7 and a mixing chamber 8.
Detailed Description
Referring to fig. 1, the technical solution adopted in the present embodiment is that it includes a compressed air inlet 1, a gas inlet 2, an air injection and suction nozzle 3, a fire extinguishing gas inlet 4, a mixed injection and suction body base body 5, an air outlet pipe 6, a mixed gas outlet 7, and a mixing chamber 8, where the compressed air inlet 1 is connected with the air injection and suction nozzle 3, the air injection and suction nozzle 3 is connected with the air outlet pipe 6, the right end of the air outlet pipe 6 is provided with a moderation gas outlet 7, the air injection and suction nozzle 3 is arranged inside the mixing chamber 8, the mixing chamber 8 is connected with the gas inlet 2 and the fire extinguishing gas inlet 4, and the mixing chamber 8 is arranged in the mixed injection and suction body base body 5.
The utility model discloses a theory of operation: it adopts a jet pump type mixing chamber structure specially designed based on hydromechanics, its key structure is jet pump, the jet pump is a pump without moving component, it utilizes the energy of one fluid to pump another fluid, when the jet pump is worked, the high-pressure air can be jetted out by jet pump nozzle with flow rate V1 at high speed, continuously takes away the gas of suction chamber, and forms low-pressure zone in the suction chamber, the pumped gas can be fed into the suction chamber with flow rate V2 under the action of air pressure, two fluids can be undergone the processes of air flow entanglement and mixing in the throat tube, the speed of working fluid can be reduced, and the speed of sucked fluid can be increased until the outlet of throat tube, and the flow rate and pressure of both can be made into identical, then the above-mentioned two fluids can be converted into pressure energy by means of diffusion tube, and transferred into the nozzle of welding torch by means of pipeline, and mixed combustion can be implemented at the nozzle, and the compressed air can be fed into the compressor inlet, the gas gets into from gas entry 2, and both penetrate suction nozzle 3 internal mixing at the air, and the mist uses compressed air as the carrier, high-speed blowout cavity, in the design of current product gas circuit, is the gas and inhales the air from the surrounding environment, and fire extinguishing gas gets into from fire extinguishing gas entry 4, and the gas can not remain in mixing chamber 8 when can guaranteeing to put out a fire, has improved system security.
After the technical scheme is adopted, the utility model discloses beneficial effect does: the original design scheme that fuel gas is used as jet power is changed, compressed air is used as jet power, fuel gas consumption is obviously reduced, and flame pressure is obviously increased; the design of the mixing chamber is changed, the traditional idea of natural mixing in a closed cavity is broken through, and the gas and the compressed air are forced to be mixed in a rotating way by utilizing the pressure difference in a specially designed injection and suction body, so that the full and uniform mixing is ensured; has the advantages of stable flame, difficult external influence on process parameters and thorough elimination of oxygen.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (4)
1. The utility model provides a flame welding is gas air mixer for device that oxygen is replaced to air which characterized in that: the fire extinguishing device comprises a compressed air inlet (1), a gas inlet (2), an air jetting suction nozzle (3), a fire extinguishing gas inlet (4), a mixed jetting suction body base body (5), a gas outlet pipeline (6), a mixed gas outlet (7) and a mixing chamber (8), wherein the compressed air inlet (1), the gas inlet (2), the air jetting suction nozzle (3), the fire extinguishing gas inlet (4), the gas outlet pipeline (6), the mixed gas outlet (7) and the mixing chamber (8) are arranged inside the mixed jetting suction body base body (5), the right side of the compressed air inlet (1) is connected with the air jetting suction nozzle (3), the mixing chamber (8) is arranged outside the air jetting suction nozzle (3), the right side of the air jetting suction nozzle (3) is connected with the gas outlet pipeline (6), the right side of the gas outlet pipeline (6) is connected with the mixed gas outlet (7), the gas inlet (2) is arranged below the compressed air inlet (1), the right side of the gas inlet (2) is connected with a mixing chamber (8), the fire extinguishing gas inlet (4) is arranged on the lower end face of the mixed injection and suction body base body (5), and the fire extinguishing gas inlet (4) is connected with the mixing chamber (8).
2. A gas-air mixer for an air-instead-of-oxygen flame welding apparatus as claimed in claim 1, wherein: the gas inlet (2) is connected with the mixing chamber (8) through a pipeline.
3. A gas-air mixer for an air-instead-of-oxygen flame welding apparatus as claimed in claim 1, wherein: the fire extinguishing gas inlet (4) is connected with the mixing chamber (8) through a pipeline.
4. A gas-air mixer for an air-instead-of-oxygen flame welding apparatus as claimed in claim 1, wherein: the gas inlet (2) is connected with the fire extinguishing gas inlet (4) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921004025.3U CN210267224U (en) | 2019-07-01 | 2019-07-01 | Gas-air mixer for flame welding device with air replacing oxygen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921004025.3U CN210267224U (en) | 2019-07-01 | 2019-07-01 | Gas-air mixer for flame welding device with air replacing oxygen |
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| CN210267224U true CN210267224U (en) | 2020-04-07 |
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| CN201921004025.3U Active CN210267224U (en) | 2019-07-01 | 2019-07-01 | Gas-air mixer for flame welding device with air replacing oxygen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621045A (en) * | 2020-12-07 | 2021-04-09 | 合肥阿格德信息科技有限公司 | Quantum intelligent industrial robot protector |
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2019
- 2019-07-01 CN CN201921004025.3U patent/CN210267224U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621045A (en) * | 2020-12-07 | 2021-04-09 | 合肥阿格德信息科技有限公司 | Quantum intelligent industrial robot protector |
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