Defrosting method of high-temperature air source heat supply system

Abstract

The invention relates to a defrosting method of a high-temperature air source heat supply system, which comprises the following steps: 1) treatment before installation: (1) disassembly of a compressor shell: a welding filler on the outer surface of the compressor shell is polished and removed, the filler can be cleaned by a polishing machine, and after the filler is cleaned up, the compressor shell is defrosted; the compressor shell can be knocked open by a hammer to be divided into an upper part and a lower part; and (2) cleaning the compressor shell and the fins: removing rusty parts on the inner side surface, the outer surface and the surfaces of the fins of the compressor shell, and washing away residual dirt by using clean water. According to the defrosting method of the high-temperature air source heat supply system, the compressor shell and the fins are treated before the capillary tubes are installed, the treatment mode is detailed to removal of rusty parts and dirt on the surfaces of the compressor shell and the fins, and therefore the installation stability of the capillary tubes after welding is avoided; and the capillary tubes are welded after being embedded by forming the grooves, so that the overall stability of welding installation is improved.

Description

technical field [0001] The invention relates to the technical field of high-temperature air source heating, in particular to a defrosting method for a high-temperature air source heating system. Background technique [0002] The twin-screw compressor has a pair of rotors with helical teeth that mesh with each other and rotate in opposite directions. The rotor with protruding tooth surfaces is called the male rotor, and the rotor with concave tooth surfaces is called the female rotor. The teeth of the rotor are equivalent to pistons. , the working volume composed of the tooth grooves of the rotor, the inner wall of the body and the end caps at both ends is equivalent to a cylinder, and the two ends of the body are provided with suction and exhaust holes arranged in diagonal lines. The internal rotary motion makes the working volume change continuously due to the intrusion or disengagement of the teeth, thereby periodically changing the volume between each pair of tooth slots ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a defrosting method for a high-temperature air source heating system, which has the advantages of fully recovering heat and transferring heat to fins for defrosting, etc. When the heating system operates in a low-temperature environment in winter, the evaporator is prone to frost, resulting in increased wind resistance, lower evaporation temperature, lower heat transfer efficiency, and reduced heating capacity.

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