U-tube welding method for low-cost gas-liquid separator
A gas-liquid separator and welding method technology, which are applied in welding equipment, copying/marking methods, manufacturing tools, etc., can solve the problems that affect the sealing and firmness of the gas outlet pipe, and the circumferential direction between pipes and pipes cannot be fully welded. , to achieve the effect of increasing the connection strength and sealing, and reducing the cost
Active Publication Date: 2021-05-25
浙江富源制冷设备股份有限公司
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Problems solved by technology
[0004] Since the pipes need to be fully welded in the circumferential direction, and then the pipes are placed horizontally for welding in the prior art, the circumferential direction between the pipes cannot be fully welded, which affects the sealing and firmness of the air outlet pipe
Method used
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Embodiment Construction
[0057] Such as Figure 1 to Figure 11 Shown, be the low-cost gas-liquid separator of the present invention U-shaped pipe welding method, comprise the steps:
[0058] a. Blank the steel pipe, then perform pipe bending operation, and then flaring the end of the steel pipe, which is used to weld and fix the copper pipe.
[0059] After the operation of step a is completed, soak the copper tube in copper tube cleaning agent, control the soaking temperature at 50-60°C, and control the soaking time at 20-30 minutes, then take out the copper tube, wash it with clean water, and clean the processed copper tube Wash to remove impurities. The cleaning agent for copper pipes is prior art, as the Chinese patent discloses an invention patent named copper pipe cleaning agent and cleaning method (application number: CN201110053171.7) on 2011.03.07.
[0060] b. Install the copper tube clamping device 1 on the rotary table 2:
[0061] (1) The copper pipe clamping device 1 that adopts comprise...
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The invention discloses a U-shaped pipe welding method for a low-cost gas-liquid separator, comprising the following steps: a. processing a steel pipe; b. installing a copper pipe clamping device on a rotary workbench; c. installing a blocking device on a mounting bracket d, install and bidirectionally clamp the copper pipe; e, block and shape the copper pipe; f, inkjet the outer surface of the copper pipe; g, fix the connection between the copper pipe and the steel pipe; h, repeat the steps d to step g, batch processing to obtain U-shaped tubes. The invention adopts steel pipe as the lower end structure and copper pipe as the upper end structure, which can reduce the cost of the U-shaped pipe. The invention can keep the steel pipe and the copper pipe in a vertical state when they are brazed, so that the welding surface between the steel pipe and the copper pipe is in a horizontal state, and then acts as a limit on the steel pipe and the copper pipe, and then rotates the steel pipe and the copper pipe in a horizontal plane. The circumferential full welding between the steel pipe and the copper pipe increases the connection strength and tightness of the steel pipe and the copper pipe; and facilitates the rapid discharge of waste generated by welding.
Description
technical field [0001] The invention belongs to the technical field of gas-liquid separator processing, and in particular relates to a U-shaped pipe welding method for a low-cost gas-liquid separator. Background technique [0002] In the evaporator of the air conditioner, due to the process of liquid evaporating in the evaporator and changing from liquid to gas, considering the change of load, some refrigerant may not be completely evaporated, but will directly enter the compressor. Due to the incompressibility of the liquid, before entering the compressor, the gas and liquid must be separated from each other first to prevent the low-pressure and low-temperature steam returning to the compressor from carrying too much liquid refrigerant into the compressor cylinder, and ensure that the refrigerant entering the compressor All are gas to ensure the normal operation of the compressor. [0003] The outlet pipe of the gas-liquid separator in the prior art is connected to the pip...
Claims
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IPC IPC(8): B23P15/00B23K1/00B23K3/08B23P19/02B41M5/00
CPCB23K1/0008B23K3/08B23P15/00B23P19/02B41M5/00B41M5/0047B41M5/0058B41M5/0088
Inventor 王卫勇
Owner 浙江富源制冷设备股份有限公司