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A method of using a welding protection device for an air-conditioning liquid reservoir

A protection device and liquid storage technology, applied in welding equipment, gas flame welding equipment, metal processing equipment, etc., can solve the problems of reliable welding, poor quality of weld seam, surface oxidation of welding parts, etc., so as to facilitate welding operation and avoid Pollution, good protection effect

Active Publication Date: 2018-08-31
ANHUI ZHONGHUI REFRIGERATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems that the existing air-conditioning liquid storage adopts the flame brazing method of welding steel parts and steel parts, which will cause surface oxidation of welding parts, reliable welding and poor weld quality, the invention provides a welding protection for air-conditioning liquid storage The device and its use method use welding fixtures to assist in the flame brazing process of the liquid reservoir, and protect the welding seam by introducing protective gas to avoid surface oxidation of the welding part. At the same time, the welding method is optimized to improve the quality of the welding seam

Method used

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Embodiment 1

[0053] Such as Figure 1 to Figure 9 As shown, this embodiment provides a welding protection device for an air conditioner liquid reservoir, including an outer ventilation block 1 and an inner ventilation block 2; Groove 101, the groove 101 is matched with the outlet pipe of the liquid reservoir, the left end of the bottom surface of the outer ventilation block 1 is provided with a boss 102, and the bosses 102 on both sides of the groove 101 are symmetrically provided with two transverse air blowing holes 103, The horizontal air blowing hole 103 is connected to the right end surface of the boss 102; two air distribution channels 104 are arranged symmetrically on both sides above the groove 101 in the outer ventilation block 1, and the horizontal air blowing hole 103 passes through the air passing hole 105 and the air distribution channel. 104 connected; the right side of the boss 102 in the outer ventilation block 1 is symmetrically distributed along the length direction with ...

Embodiment 2

[0059] This embodiment provides a method for using a welding protection device for an air-conditioning liquid storage device. The device adopts the welding protection device for an air-conditioning liquid storage device in Embodiment 1, and is used for welding the cylinder body of the liquid storage device and the air outlet pipe. The air outlet pipes are made of steel. The part of the air outlet pipe inside the cylinder is a straight pipe, and the part outside the cylinder is a 90° elbow. The outer diameter of the air outlet pipe is φ15mm, the wall thickness is 1mm, and the wall thickness of the cylinder is 1.5mm. mm, the welding clearance between the cylinder body and the outlet pipe is 0.1mm, and the matching length of the welding section is 5mm. The automatic turntable brazing machine is used to weld by flame brazing. The specific operation steps are as follows:

[0060] ① Ultrasonic cleaning is performed on the barrel and outlet pipe of the liquid receiver to be welded to...

Embodiment 3

[0078] This embodiment provides a method for using a welding protection device for an air-conditioning liquid storage device. The device adopts the welding protection device for an air-conditioning liquid storage device in Embodiment 1, and is used for welding the cylinder body of the liquid storage device and the air outlet pipe. The air outlet pipes are all made of steel. The part of the air outlet pipe located inside the cylinder is a straight pipe, and the part outside the cylinder is a 90° elbow. The outer diameter of the air outlet pipe is φ12mm, and the wall thickness is 0.8mm. The wall thickness of the cylinder is 1.6mm, the welding clearance between the cylinder body and the outlet pipe is 0.2mm, and the matching length of the welding section is 7mm. The automatic turntable brazing machine is used to weld by flame brazing. The specific operation steps are as follows:

[0079] ① Ultrasonic cleaning is performed on the barrel and outlet pipe of the liquid receiver to be...

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Abstract

The invention discloses an air conditioner liquid storage device welding protection device and an application method thereof, and belongs to the technical field of welding. The air conditioner liquid storage device welding protection device comprises an outer ventilation block and an inner ventilation block. The outer ventilation block is of a rectangular block-shaped structure and is provided with a transverse air blowing hole and longitudinal air blowing holes and connected with an air source through an outer ventilation connecting hole. An inner air blowing hole is formed in the inner ventilation block and connected with the air source through an inner ventilation connecting hole. According to the method, a cylinder is inflated with protection air through the inner ventilation block in the welding process, the welding position is immediately inflated with the protection air through the outer ventilation block after welding is finished, and air is prevented from making contact with a welding line. By means of the air conditioner liquid storage device welding protection device and the application method thereof, the surface of a welded part can be prevented from being oxidized during liquid storage device welding, the connecting strength of the welding line is improved, the quality of a finished product is improved, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of welding technology, and more specifically relates to a welding protection device for an air-conditioning liquid storage device and a using method thereof. Background technique [0002] The air conditioner liquid receiver is used to store refrigerant, and its main functions include realizing gas-liquid separation, removing foreign matter, and controlling the amount of oil returned. The material used for the air inlet and outlet pipes of the traditional liquid receiver is copper, and the welding process between the air inlet and outlet pipes and the cylinder is mostly flame welding, brazing in the furnace, and high-frequency welding. The welding materials are silver solder, brass solder, phosphorus solder, etc. Bronze solder; products processed by the above process have high material cost and welding cost, and the working environment is poor. [0003] In the air conditioner liquid receiver, the outlet pipe is divide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K5/02B23K5/22
CPCB23K5/003B23K5/02B23K5/22
Inventor 潘新阳李洪洋王永
Owner ANHUI ZHONGHUI REFRIGERATION
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