Gas pipeline device for flame brazing equipment

Abstract

The utility model discloses a gas pipeline device for flame brazing equipment, which comprises a gas control pipeline and a soldering flux control pipeline, the gas control pipeline is used for conveying gas, the soldering flux control pipeline is used for conveying soldering flux, and the gas control pipeline and the soldering flux control pipeline are arranged in parallel. The gas control pipeline and the scaling powder control pipeline are connected in parallel and intersect to form a mixed control pipeline, and the mixed control pipeline is communicated with a welding gun nozzle of flame brazing equipment. The device is reasonable in design and high in practicability, the soldering flux is conveyed by adopting the independent soldering flux control pipeline, the soldering flux is prevented from directly passing through the gas control pipeline, the blocking risk of the gas control pipeline is reduced, the pipeline safety is improved, and the gas control pipeline is ensured to be clean and smooth, so that the gas flow stability is improved, and the welding quality is improved.

Description

Technical Field

[0001] This utility model belongs to the field of gas pipeline control technology, specifically relating to a gas pipeline device for flame brazing equipment. Background Technology

[0002] A flame welding machine is a device that uses the flame generated by the combustion of a mixture of fuel gas and oxygen to melt and weld metals. Oxygen and fuel gas (such as acetylene, propane, natural gas, etc.) are mixed and burned inside the torch to produce a high-temperature flame. This high-temperature flame can melt the metal to be welded, thus achieving the purpose of welding. Furthermore, the nozzle size of a flame welding machine is adjustable, allowing the size and shape of the flame to be adjusted according to welding requirements.

[0003] Flux plays a crucial role in the flame welding process. Its main functions include assisting heat conduction, removing oxides, reducing the surface tension of the materials being welded, removing oil stains from the surface of the materials being welded, increasing the welding area, and preventing re-oxidation. Traditionally, flux in flame welding machines is introduced via the gas fuel. However, as the flux passes through the pipeline, it crystallizes and precipitates, easily causing blockages in the gas pipeline and valves of various control components, affecting the stability of the gas flow. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art, and to provide a gas pipeline device for flame brazing equipment. The device is reasonably designed and highly practical. It uses a separate flux control pipeline to deliver flux, avoiding the flux from passing directly through the gas control pipeline, reducing the risk of blockage in the gas control pipeline, improving pipeline safety, ensuring the cleanliness and smooth flow of the gas control pipeline, thereby improving the stability of gas flow and improving welding quality.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A gas pipeline system for flame brazing equipment includes a gas control pipeline and a flux control pipeline. The gas control pipeline delivers the gas, and the flux control pipeline delivers the flux. The gas control pipeline and the flux control pipeline are connected in parallel. After their parallel connections intersect, they form a mixed control pipeline, which is connected to the welding torch nozzle of the flame brazing equipment. This application features a reasonable and practical design. By using a separate flux control pipeline for flux delivery, it avoids direct flux flow through the gas control pipeline, reducing the risk of blockage, improving pipeline safety, and ensuring the cleanliness and unobstructed flow of the gas control pipeline. This, in turn, improves the stability of the gas flow and enhances welding quality.

[0007] Further, the gas control pipeline comprises a fuel gas control pipeline and a combustion-supporting gas control pipeline, the fuel gas control pipeline realizes fuel gas delivery, and the combustion-supporting gas control pipeline realizes combustion-supporting gas delivery, the gas control pipeline comprises two separately arranged fuel gas control pipelines and combustion-supporting gas control pipelines, independent control elements are arranged on the two control pipelines, so that fuel gas and combustion-supporting gas delivery is more accurate and flexible, and subsequent device maintenance and expansion are facilitated.

[0008] Further, the gas pipeline device further comprises a fuel gas mixer, the fuel gas control pipeline and the combustion-supporting gas control pipeline are in communication with an inlet end of the fuel gas mixer, an outlet end of the fuel gas mixer is in communication with the mixed control pipeline, the fuel gas mixer is used for mixing fuel gas and combustion-supporting gas, the fuel gas and the combustion-supporting gas are uniformly mixed in the fuel gas mixer first, and then enter the mixed control pipeline to be delivered to the welding torch nozzle, so as to form a stable flame together with the flux for welding.

[0009] Further, the flux control pipeline is connected after the outlet end of the fuel gas mixer and before the inlet end of the welding torch nozzle, which is a clever and reasonable design, so that the flux delivery does not pass through the gas control pipeline and the fuel gas mixer, thereby avoiding blockage of the gas control pipeline, the control elements on the gas control pipeline and the fuel gas mixer caused by flux crystallization.

[0010] Further, the fuel gas control pipeline is sequentially provided with a solenoid valve one and a flow controller one, the fuel gas flows to the flow controller one after passing through the solenoid valve one, the solenoid valve one can quickly and accurately control the on-off of the fuel gas control pipeline, realize accurate control of the welding process, help to ensure the stability and consistency of the welding process, improve the welding quality, and the flow controller one can accurately measure and control the flow of the fuel gas, ensure that the fuel gas is supplied to the flame brazing equipment according to the set flow, and improve the welding stability and welding quality.

[0011] Further, the fuel gas control pipeline is provided with a filter one, the filter one filters the fuel gas entering from the inlet end of the fuel gas control pipeline, the filter one is arranged on the front side of the solenoid valve one, and the fuel gas must be filtered by the filter one before flowing to the solenoid valve one, impurities can be avoided from entering the equipment to cause damage to the equipment by filtering and removing the impurities from the fuel gas, the service life of the equipment is prolonged, the purity and quality of the impurities-removed fuel gas are good, the combustion effect is guaranteed, and the welding effect is improved. The fuel gas can be natural gas, liquefied gas or the like, and natural gas is preferably used.

[0012] Further, the gas control pipeline is provided with a pressure reducing valve one, which reduces and adjusts the gas entering the gas control pipeline, and is arranged in front of the electromagnetic valve one. The gas must flow through the pressure reducing valve one before flowing to the electromagnetic valve one, so that the gas is pressure-adjusted before entering the electromagnetic valve one, thereby ensuring the stability and service life of the electromagnetic valve one. When the gas control pipeline is provided with the pressure reducing valve one and the filter one at the same time, the filter one is also preferably arranged in front of the pressure reducing valve one, so that the gas entering the gas control pipeline must be filtered by the filter one before flowing to other control elements, thereby avoiding the influence and damage of impurities on the control elements, protecting the equipment, improving the safety of the equipment, and the stable gas pressure can also ensure that the flame generated by the flame brazing equipment remains stable, thereby helping to achieve precise welding operation.

[0013] Further, the gas control pipeline is provided with a one-way valve one, which realizes one-way conduction of the gas control pipeline. The one-way valve one and the flow controller one are arranged behind the electromagnetic valve one, and the front and back order between the one-way valve one and the flow controller one can be adjusted according to requirements. The gas flows to the one-way valve one and the flow controller one after passing through the electromagnetic valve one. The arrangement of the one-way valve one enables the gas control pipeline to realize one-way conduction only, and the gas flows in the gas control pipeline in a predetermined direction, thereby avoiding reverse flow of the gas and ensuring normal operation of the flame brazing equipment, avoiding damage to the equipment caused by reverse flow of the gas during welding, and improving the safety and reliability of the entire equipment operation.

[0014] Further, the combustion-supporting gas control pipeline is sequentially provided with an electromagnetic valve two and a flow controller two. The combustion-supporting gas flows to the flow controller two after passing through the electromagnetic valve two. The electromagnetic valve two can quickly and accurately control the on-off of the combustion-supporting gas control pipeline, thereby ensuring stable and adjustable supply of the combustion-supporting gas during welding and helping to achieve precise welding operation. The flow controller two can measure and control the flow of the combustion-supporting gas, thereby ensuring stable flow and meeting the welding requirements and ensuring welding quality.

[0015] Further, the combustion-supporting gas control pipeline is provided with a filter two, which filters the combustion-supporting gas entering from the inlet end of the combustion-supporting gas control pipeline. The filter two is arranged in front of the electromagnetic valve two. The combustion-supporting gas must be filtered by the filter two before flowing to the electromagnetic valve two. Filtering and removing impurities from the combustion-supporting gas can avoid damage to the equipment caused by impurities entering the equipment, thereby improving the reliability and stability of the equipment operation, and the quality of the impurity-removed combustion-supporting gas is good, thereby improving the welding quality. The combustion-supporting gas is oxygen or air, and oxygen is preferably used.

[0016] Further, the combustion-supporting gas control pipeline is provided with a one-way valve two, and the one-way valve two is used to realize one-way conduction of the combustion-supporting gas control pipeline. The one-way valve two and the flow controller two are arranged on the rear side of the electromagnetic valve two, and the front-rear sequence between the one-way valve two and the flow controller two is not limited and can be adjusted according to requirements. The combustion-supporting gas flows to the one-way valve two and the flow controller two only after passing through the electromagnetic valve two. The one-way valve two is arranged to enable the combustion-supporting gas control pipeline to realize one-way conduction only. The combustion-supporting gas flows in the combustion-supporting gas control pipeline in a predetermined direction, avoiding reverse flow of the combustion-supporting gas, thereby ensuring normal operation of the flame brazing equipment, avoiding damage to the equipment caused by reverse flow of the combustion-supporting gas during welding, and improving safety and reliability of the entire equipment operation.

[0017] Further, the combustion-supporting gas control pipeline is provided with a pressure reducing valve two, which is used to reduce and adjust the pressure of the combustion-supporting gas entering the combustion-supporting gas control pipeline. The pressure reducing valve two is arranged on the front side of the electromagnetic valve two. The combustion-supporting gas must flow to the electromagnetic valve two only after passing through the pressure reducing valve two, thereby ensuring that the combustion-supporting gas has been pressure-adjusted before entering the electromagnetic valve two, thereby ensuring stability and service life of the electromagnetic valve two. When the filter two and the pressure reducing valve two are arranged on the combustion-supporting gas control pipeline at the same time, the filter two is preferentially arranged on the front side of the pressure reducing valve two, so that the combustion-supporting gas entering the combustion-supporting gas control pipeline must pass through the filter two before flowing to other control elements, thereby avoiding the influence and wear of impurities on other control elements. The pressure reducing valve two can adjust and stabilize the pressure of the combustion-supporting gas entering the combustion-supporting gas control pipeline, thereby protecting the equipment and prolonging the service life of the equipment. The pressure reducing valve two also helps to maintain stability and uniformity of the welding flame and improve welding quality.

[0018] Further, the flux control pipeline is provided with a flux atomizing tank. The flux atomizing tank stores atomized flux. The inlet end of the flux control pipeline is connected to an inert gas. The inert gas carries the atomized flux to the mixing control pipeline. The inert gas is a non-combustible gas such as nitrogen. The flux atomizing tank atomizes the flux into small particles, which can more fully mix with the fuel gas and the combustion-supporting gas, thereby being more uniformly distributed in the welding area, improving the utilization efficiency of the flux, and improving the welding quality. The inert gas acts as a carrier to ensure stable delivery of the atomized flux to the mixing control pipeline. The inert gas can also prevent oxidation and nitriding during welding, further improving welding quality.

[0019] Further, the flux control pipeline is provided with an electromagnetic valve three. The electromagnetic valve three can quickly and accurately control the on-off of the flux control pipeline, thereby realizing accurate control of the flux and helping to stably supply the flux during welding, thereby improving welding quality.

[0020] Further, the flux control pipeline is provided with a throttle valve, the throttle valve is arranged at the rear side of the electromagnetic valve three, the flux flows to the throttle valve after passing through the electromagnetic valve three, the throttle valve can adjust and control the flux flow, ensure the stability and quality of the welding process, and the throttle valve can also stabilize the pressure while adjusting the flow, and ensure the pressure stability in the flux conveying process.

[0021] Further, the flux control pipeline is provided with a one-way valve three, the one-way valve three realizes the one-way conduction of the flux control pipeline, the one-way valve three and the throttle valve are both arranged at the rear side of the electromagnetic valve three, and the front-rear sequence between the one-way valve three and the throttle valve is not limited and can be adjusted according to requirements, the flux flows to the one-way valve three and the throttle valve after passing through the electromagnetic valve three, the one-way valve three is arranged to enable the flux control pipeline to only realize one-way conduction, the flux flows in a predetermined direction in the flux control pipeline, the reverse flow of the flux is avoided, the normal operation of the flame brazing equipment is ensured, the damage of the equipment caused by the reverse flow of the flux during the welding process is avoided, and the safety and reliability of the entire equipment operation are improved.

[0022] The utility model discloses a kind of flame brazing equipment gas pipeline devices, which has the beneficial effects as follows:

[0023] The utility model discloses reasonable, practical, using separate flux control pipeline to convey flux, avoid flux directly through gas control pipeline, reduce gas control pipeline blockage risk, improve pipeline safety, ensure that gas control pipeline is clean and unobstructed, to improve gas flow stability, improve welding quality. BRIEF DESCRIPTION OF DRAWINGS

[0024] The utility model will be further described below with reference to the drawings:

[0025] Figure 1 It is the structural schematic diagram of the utility model flame brazing equipment gas pipeline device.

[0026] In the drawing, 1-gas control pipeline;2-assisting gas control pipeline;3-flux control pipeline;4-mixture control pipeline;5-gas;6-assisting gas;7-inert gas;8-reducing valve one;9-electromagnetic valve one;10-flow controller one;11-reducing valve two;12-electromagnetic valve two;13-flow controller two;14-flux atomizing tank;15-gas mixer;16-electromagnetic valve three;17-throttle valve;18-one-way valve one;19-one-way valve two;20-one-way valve three;21-welding torch nozzle;22-filter one;23-filter two. DETAILED DESCRIPTION

[0027] As Figure 1The utility model flame brazing equipment with gas pipeline device, including gas control pipeline and flux control pipeline 3, gas control pipeline realizes the delivery of gas, flux control pipeline 3 realizes the delivery of flux, gas control pipeline and flux control pipeline 3 are in parallel arrangement, gas control pipeline and flux control pipeline 3 are in parallel and meet after forming mixed control pipeline 4, mixed control pipeline 4 is connected with the torch nozzle 21 of flame brazing equipment. The present application design is reasonable, and the practicality is strong, adopts separate flux control pipeline 3 to carry out the delivery of flux, avoids the flux to pass through gas control pipeline directly, reduces the risk of gas control pipeline blockage, improves the safety of pipeline, guarantees the clean and unobstructed of gas control pipeline, thereby improves the flow stability of fuel gas 5, improves the welding quality. Gas control pipeline includes parallelly arranged fuel gas control pipeline 1 and combustion-supporting gas control pipeline 2, fuel gas control pipeline 1 realizes the delivery of fuel gas, combustion-supporting gas control pipeline 2 realizes the delivery of combustion-supporting gas, and the gas control pipeline includes two separately arranged fuel gas control pipeline 1 and combustion-supporting gas control pipeline 2, independent control elements are arranged on the two control pipelines, so that the delivery of fuel gas and combustion-supporting gas is more accurate and flexible, and the subsequent device is convenient to maintain and expand.

[0028] The gas pipeline device further comprises a gas mixer 15, the fuel gas control pipeline 1 and the combustion-supporting gas control pipeline 2 are both in communication with the inlet end of the gas mixer 15, the inlet end of the gas mixer 15 is provided with two interfaces, the two interfaces are connected with the fuel gas control pipeline 1 and the combustion-supporting gas control pipeline 2 respectively, the outlet end of the gas mixer 15 is in communication with the mixed control pipeline 4, the gas mixer 15 is used for mixing the fuel gas 5 and the combustion-supporting gas 6, the fuel gas 5 and the combustion-supporting gas 6 are uniformly mixed in the gas mixer 15 first and then enter the mixed control pipeline 4 to be delivered to the torch nozzle 21, and form a stable flame together with the flux to perform welding. The flux control pipeline 3 is connected after the outlet end of the gas mixer 15 and before the inlet end of the torch nozzle 21, and the position is designed to be ingenious and reasonable, so that the flux delivery does not pass through the gas control pipeline and the gas mixer 15, thereby avoiding the blockage of the gas control pipeline, the control elements on the gas control pipeline and the gas mixer 15 caused by the crystallization of the flux.

[0029] The fuel gas control pipeline 1 is sequentially provided with a solenoid valve one 9 and a flow controller one 10, the fuel gas 5 flows to the flow controller one 10 after passing through the solenoid valve one 9, the solenoid valve one 9 can quickly and accurately control the on-off of the fuel gas control pipeline 1, realize accurate control of the welding process, help to ensure the stability and consistency of the welding process, improve the welding quality, and the flow controller one 10 can accurately measure and control the flow of the fuel gas 5, ensure that the fuel gas 5 is supplied to the flame brazing equipment according to the set flow, and improve the welding stability and welding quality.

[0030] The gas control pipeline 1 is provided with a filter one 22, which filters the gas 5 entering from the inlet end of the gas control pipeline 1, and is arranged on the front side of the electromagnetic valve one 9. The gas 5 must pass through the filter one 22 before flowing to the electromagnetic valve one 9. By filtering the gas 5, impurities can be avoided from entering the equipment and causing damage, prolonging the service life of the equipment. The purity and quality of the filtered gas 5 are good, ensuring the combustion effect and improving the welding effect. The gas 5 can be natural gas, liquefied gas, etc., preferably natural gas.

[0031] The gas control pipeline 1 is provided with a pressure reducing valve one 8, which adjusts the pressure of the gas 5 entering the gas control pipeline 1. The pressure reducing valve one 8 is arranged on the front side of the electromagnetic valve one 9. The gas 5 must pass through the pressure reducing valve one 8 before flowing to the electromagnetic valve one 9, ensuring that the gas 5 has been pressure-adjusted before entering the electromagnetic valve one 9, thereby ensuring the stability and service life of the electromagnetic valve one 9. When the gas control pipeline 1 is provided with both the pressure reducing valve one 8 and the filter one 22, the filter one 22 is preferably arranged on the front side of the pressure reducing valve one 8, so that the gas 5 entering the gas control pipeline 1 must pass through the filter one 22 before flowing to other control elements, avoiding the influence and damage of impurities on the control elements. The pressure reducing valve one 8 can adjust and stabilize the pressure of the gas 5 entering the gas control pipeline 1, protecting the equipment and improving the safety of the equipment. Stable gas pressure can also ensure that the flame produced by the flame brazing equipment remains stable, thereby facilitating precise welding operations.

[0032] The gas control pipeline 1 is provided with a one-way valve one 18, which realizes one-way conduction of the gas control pipeline 1. The one-way valve one 18 and the flow controller one 10 are both arranged on the rear side of the electromagnetic valve one 9, and the front and rear order between the one-way valve one 18 and the flow controller one 10 can be adjusted according to needs. The gas 5 flows to the one-way valve one 18 and the flow controller one 10 only after passing through the electromagnetic valve one 9. The one-way valve one 18 allows the gas control pipeline 1 to only conduct in one direction, and the gas 5 flows in the predetermined direction in the gas control pipeline 1, avoiding reverse flow of the gas 5 and ensuring normal operation of the flame brazing equipment, thereby improving the safety and reliability of the entire equipment operation.

[0033] The combustion-supporting gas control pipeline 2 is sequentially provided with the electromagnetic valve two 12 and the flow controller two 13, the combustion-supporting gas 6 flows to the flow controller two 13 after passing through the electromagnetic valve two 12, the electromagnetic valve two 12 can quickly and accurately control the on-off of the combustion-supporting gas control pipeline 2, and ensure that the supply of the combustion-supporting gas 6 is stable and adjustable during the welding process, thereby helping to realize precise welding operation, and the flow controller two 13 can measure and control the flow of the combustion-supporting gas 6, ensure that the flow is stable and meets the welding requirements, and thereby ensure the welding quality.

[0034] The combustion-supporting gas control pipeline 2 is provided with the filter two 23, the filter two 23 filters the combustion-supporting gas 6 flowing from the inlet end of the combustion-supporting gas control pipeline 2, the filter two 23 is arranged on the front side of the electromagnetic valve two 12, and the combustion-supporting gas 6 must be filtered by the filter two 23 before flowing to the electromagnetic valve two 12, by filtering the combustion-supporting gas 6, impurities can be avoided from entering the equipment to cause damage to the equipment, improve the reliability and stability of the equipment operation, and the impurity-removed combustion-supporting gas 6 has good quality, which can improve the welding quality. The combustion-supporting gas 6 is oxygen or air, and oxygen is preferably used.

[0035] The combustion-supporting gas control pipeline 2 is provided with the one-way valve two 19, the one-way valve two 19 realizes the one-way conduction of the combustion-supporting gas control pipeline 2, the one-way valve two 19 and the flow controller two 13 are both arranged on the rear side of the electromagnetic valve two 12, and the front-rear sequence between the one-way valve two 19 and the flow controller two 13 is not limited and can be adjusted according to requirements, the combustion-supporting gas 6 flows to the one-way valve two 19 and the flow controller two 13 after passing through the electromagnetic valve two 12, the one-way valve two 19 is arranged to make the combustion-supporting gas control pipeline 2 only realize one-way conduction, the combustion-supporting gas 6 flows in the combustion-supporting gas control pipeline 2 in a predetermined direction, and reverse flow of the combustion-supporting gas 6 is avoided, thereby ensuring the normal operation of the flame brazing equipment, avoiding backflow of the combustion-supporting gas 6 during the welding process to cause damage to the equipment, and improving the safety and reliability of the entire equipment operation.

[0036] The combustion-supporting gas control pipeline 2 is provided with a pressure reducing valve 11, which reduces and adjusts the pressure of the combustion-supporting gas 6 entering the combustion-supporting gas control pipeline 2. The pressure reducing valve 11 is arranged in front of an electromagnetic valve 12. The combustion-supporting gas 6 must pass through the pressure reducing valve 11 before flowing to the electromagnetic valve 12, so that the combustion-supporting gas 6 is pressure-adjusted before entering the electromagnetic valve 12, thereby ensuring the stability and service life of the electromagnetic valve 12. When the combustion-supporting gas control pipeline 2 is provided with both the filter 23 and the pressure reducing valve 11, the filter 23 is arranged in front of the pressure reducing valve 11, so that the combustion-supporting gas 6 entering the combustion-supporting gas control pipeline 2 must pass through the filter 23 before flowing to other control elements, thereby avoiding the influence and damage of impurities on other control elements. The pressure reducing valve 11 can adjust and stabilize the pressure of the combustion-supporting gas 6 entering the combustion-supporting gas control pipeline 2, thereby protecting the equipment, prolonging the service life of the equipment, and helping to maintain the stability and uniformity of the welding flame and improve the welding quality.

[0037] The flux control pipeline 3 is provided with a flux atomizing tank 14, which stores atomized flux. The inlet end of the flux control pipeline 3 is connected to an inert gas 7, which carries the atomized flux to the mixing control pipeline 4. The flux atomizing tank 14 is arranged in front of an electromagnetic valve 16. The inert gas 7 is a non-combustible gas such as nitrogen. The flux atomizing tank 14 atomizes the flux into small particles, which can more fully mix with the fuel gas 5 and the combustion-supporting gas 6, thereby more evenly distributing in the welding area, improving the utilization efficiency of the flux, and improving the welding quality. The inert gas 7 as a carrier can ensure the stable delivery of the atomized flux to the mixing control pipeline 4, and can also prevent oxidation and nitriding during welding, further improving the welding quality.

[0038] The flux control pipeline 3 is provided with an electromagnetic valve 16 and a throttle valve 17. The electromagnetic valve 16 can quickly and accurately control the opening and closing of the flux control pipeline 3, thereby achieving precise control of the flux and helping to stably supply the flux during welding, thereby improving the welding quality. The throttle valve 17 is arranged behind the electromagnetic valve 16. The flux flows to the throttle valve 17 after passing through the electromagnetic valve 16. The throttle valve 17 can adjust and control the flow of the flux, thereby ensuring the stability and quality of the welding process. In addition, the throttle valve 17 can also stabilize the pressure while adjusting the flow, thereby ensuring the pressure stability during the delivery of the flux.

[0039] The one-way valve three 20 is arranged on the flux control pipeline 3, and the one-way valve three 20 realizes one-way conduction of the flux control pipeline 3, the one-way valve three 20 and the throttle valve 17 are arranged on the rear side of the electromagnetic valve three 16, and the front-rear sequence between the one-way valve three 20 and the throttle valve 17 is not limited and can be adjusted according to requirements, the flux flows to the one-way valve three 20 and the throttle valve 17 after passing through the electromagnetic valve three 16 first, the one-way valve three 20 is arranged to enable the flux control pipeline 3 to realize one-way conduction only, the flux flows in the flux control pipeline 3 in a predetermined direction, reverse flow of the flux is avoided, and therefore, normal operation of the flame brazing equipment is ensured, damage of the equipment caused by reverse flow of the flux during welding is avoided, and safety and reliability of the entire equipment operation are improved.

[0040] The utility model discloses the reasonable design, practicality is strong, adopts the separate flux control pipeline 3 to carry out the delivery of flux, and the inert gas 7 brings the atomized flux into the mixed control pipeline 4, and this kind of mode can avoid the flux directly through the gas control pipeline 1, reduces the gas control pipeline 1 block risk, improves the pipeline safety, guarantees the cleanliness of gas control pipeline 1 and is unobstructed, thereby improves gas 5 flow stability, and the welding quality is greatly improved.

[0041] The above is only the specific embodiment of the utility model, but the technical features of the utility model are not limited to this. Any simple change, equivalent replacement or modification, etc. based on the utility model to solve the basically same technical problem and realize the basically same technical effect, all are covered in the protection scope of the utility model.

Claims

1. A gas piping device for a flame brazing apparatus, characterized by The utility model relates to a gas pipeline device for flame brazing equipment, which comprises: a gas control pipeline for conveying gas; a flux control pipeline for conveying flux; the gas control pipeline and the flux control pipeline are connected in parallel; the gas control pipeline and the flux control pipeline are connected in parallel and then connected to a mixed control pipeline, which is connected to a torch nozzle of the flame brazing equipment.

2. The gas piping device for a flame brazing apparatus according to claim 1, characterized by: The gas control pipeline comprises a fuel gas control pipeline and an auxiliary fuel gas control pipeline.

3. The gas piping device for a flame brazing apparatus according to claim 2, characterized by: The gas pipeline device further comprises a fuel gas mixer, the fuel gas control pipeline and the auxiliary fuel gas control pipeline are connected to an inlet end of the fuel gas mixer, an outlet end of the fuel gas mixer is connected to the mixed control pipeline, and the fuel gas mixer is used for mixing fuel gas and auxiliary fuel gas.

4. The gas piping device for a flame brazing apparatus according to claim 3, characterized by: The flux control pipeline is connected after the outlet end of the fuel gas mixer and before the inlet end of the torch nozzle.

5. The gas piping device for a flame brazing apparatus according to claim 2, characterized by: An electromagnetic valve one and a flow controller one are sequentially arranged on the fuel gas control pipeline.

6. The gas piping device for a flame brazing apparatus according to claim 5, characterized by: A filter one is arranged on the fuel gas control pipeline to filter the fuel gas entering from the inlet end of the fuel gas control pipeline.

7. The gas piping device for a flame brazing apparatus according to claim 5, characterized by: A pressure reducing valve one is arranged on the fuel gas control pipeline to reduce the pressure of the fuel gas entering the fuel gas control pipeline.

8. The gas piping device for a flame brazing apparatus according to claim 5, characterized by: A one-way valve one is arranged on the fuel gas control pipeline to realize one-way conduction of the fuel gas control pipeline.

9. The gas line set for a flame brazing apparatus according to claim 2, characterized by: An electromagnetic valve two and a flow controller two are sequentially arranged on the auxiliary fuel gas control pipeline.

10. The gas line set for a flame brazing apparatus according to claim 9, characterized by: A filter two is arranged on the auxiliary fuel gas control pipeline to filter the auxiliary fuel gas entering from the inlet end of the auxiliary fuel gas control pipeline.

11. The gas line set for a flame brazing apparatus according to claim 9, characterized by: A one-way valve two is arranged on the auxiliary fuel gas control pipeline to realize one-way conduction of the auxiliary fuel gas control pipeline.

12. The gas line set for a flame brazing apparatus according to claim 9, characterized by: A pressure reducing valve two is arranged on the auxiliary fuel gas control pipeline to reduce the pressure of the auxiliary fuel gas entering the auxiliary fuel gas control pipeline.

13. The gas line set for a flame brazing apparatus according to claim 1, characterized by: A flux atomizing tank is arranged on the flux control pipeline to store atomized flux, an inert gas is introduced into the inlet end of the flux control pipeline, and the inert gas carries the atomized flux to the mixed control pipeline.

14. The gas line set for a flame brazing apparatus according to claim 13, characterized by: An electromagnetic valve three is arranged on the flux control pipeline.

15. The gas line set for a flame brazing apparatus according to claim 14, characterized by: A throttle valve is arranged on the flux control pipeline.

16. The gas line set for a flame brazing apparatus according to claim 14, characterized by: A one-way valve three is arranged on the flux control pipeline to realize one-way conduction of the flux control pipeline.

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