Gas collecting tube assembly, combination method thereof and air conditioning system

Abstract

The invention relates to a gas collecting tube assembly, a combination method thereof and an air conditioning system using the gas collecting tube assembly. The gas collecting tube assembly comprises a main gas collecting tube (1), a plurality of branch tubes (2) communicated with the main gas collecting tube (1), and a guide-out tube (3) welded to one end of the main gas collecting tube (1). The gas collecting tube assembly is characterized in that a closed communicated gas collecting cavity is formed by welding and fixing the main gas collecting tube (1) and the branch tubes (2) and the guide-out tube (3) through furnace brazing in one step. The gas collecting tube assembly is reliable in airtightness, simplifies process, is free of acid washing, meets environment-friendly requirements, and is especially suitable for large air conditioners such as commercial air conditioners.

Description

technical field [0001] The invention belongs to the technical field of refrigeration, and mainly relates to an air collecting pipe assembly and an air conditioning system using the air collecting pipe assembly. Background technique [0002] State-of-the-art air conditioning or other forms of heat pump refrigeration systems such as Figure 8 As shown, it mainly includes functional components such as a compressor 101, a first heat exchanger 102, a second heat exchanger 103, a throttling element 104, and a pipeline connection piece 105 that connects each functional component to form a medium circulation path. Through the change of pressure and the conversion of vapor / liquid form in the circulation passage, the effect of heat exchange with the surrounding environment is achieved to adjust the ambient temperature. In a general structure, a flow distributor 106 is connected to the inlet of the heat exchanger (such as the first heat exchanger 102 in the figure), and a collector...

AI Technical Summary

Problems solved by technology

The flame brazing method is generally used between the main air collecting pipe 1' and each branch pipe 2', and between the main air collecting pipe 1' and the pipeline connector. more difficult

At the same time, the surface quality after flame brazing is poor, and necessary pickling is required, which has a great impact on the environment

[0005] At the same time, with the continuous development of industrial technology in recent years, the use of commercial air conditioners with large cooling ton capacity is also increasing. As a large cooling ton air conditioning system, the pressure of the medium circulation system is relatively high, and the airtight pressure is required to be increased. , the air collecting pipe assembly mainly made of copper materials is bulky and consumes more copper materials. This is not conducive to cost control and sustainable development under the circumstances of high copper prices and increasingly scarce copper resources.

Images