Shell and Tube Condenser and Air Conditioning System

Abstract

The invention provides a shell and tube type condenser and an air conditioning system. The shell and tube type condenser comprises a shell, a first tube plate, a second tube plate, a first channel, a second channel, a heat exchange tube bundle and a heat regenerative tube bundle, wherein the shell is provided with a condensate gas inlet used for communicating with a compressor exhaust port, a condensate liquid outlet used for communicating with a throttling element liquid inlet, a heat regenerative gas inlet used for communicating with an evaporator gas outlet, and a heat regenerative gas outlet used for communicating with a compressor gas suction port; the first tube plate and the second tube plate are arranged at the axial two ends of the shell correspondingly; the first channel and the second channel are arranged outside the first tube plate and the second tube plate correspondingly, and a cooling water inlet and a cooling water outlet are formed in the first channel or the second channel; the heat exchange tube bundle is arranged inside the shell, and the two ends of the heat exchange tube bundle communicate with the first channel and the second channel correspondingly and fixed to the first tube plate and the second tube plate correspondingly; and the heat regenerative tube bundle is arranged inside the shell, and the two ends of the heat regenerative tube bundle communicate with the heat regenerative gas inlet and the heat regenerative gas outlet correspondingly. According to the shell and tube type condenser and the air conditioning system, a freezing medium in the shell is utilized for conduction heat regeneration on exhaust gas of an evaporator, and meanwhile, supercooling of a freezing medium in the condenser is achieved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a shell and tube condenser and an air conditioning system. Background technique [0002] In the vapor compression refrigeration cycle system, usually the suction temperature of the compressor should be higher than the evaporation temperature of the evaporator, even if the suction has a certain degree of superheat, so that the temperature of the refrigerant before throttling (subcooling temperature) is lower than that of the condenser Condensation temperature, that is, the refrigerant has a certain degree of subcooling before throttling. If the degree of superheat or subcooling is not enough, it will bring many problems to the refrigeration system, such as compressor suction liquid, cooling capacity reduction, expansion valve malfunction and so on. [0003] A gas-liquid separator is usually installed after the evaporator in a large air-conditioning unit to prevent the co...

AI Technical Summary

Problems solved by technology

If the degree of superheat or subcooling is not enough, it will bring many problems to the refrigeration system, such as compressor suction with liquid, cooling capacity reduction, expansion valve malfunction, etc.

[0003] A gas-liquid separator is usually installed after the evaporator in a large air-conditioning unit to prevent the compressor from sucking liquid, and a subcooler is installed after the condenser to increase the cooling capacity, but this will increase the cost of the unit and increase the cost of the unit. The pipeline is very complicated

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