Module machine anti-freezing system

Abstract

The invention relates to a modular machine anti-freezing system which comprises a charging module, a power storage module, a heating module and a central processing module. The central processing module compares the temperature in a shell with a preset temperature lower limit threshold value, and when the temperature in the shell is lower than the preset temperature lower limit threshold value, itis indicated that the temperature in the shell is low at the moment, the risk of frost cracking exists, the central processing module controls the heating module to start heating a shell tube, the heating module takes power from the power storage module to electrically heat the shell tube, and the charging module supplements electric energy lost by the power storage module. According to the modular machine anti-freezing system, on one hand, the temperature in the shell tube is monitored, and when the temperature in the shell tube is lower than a preset temperature lower limit threshold value,the shell tube is automatically heated and prevented from frost cracking; and on the other hand, the supply of electric energy required by heating is met in a charging and electric power storage combined mode, the electric energy is stable and continuous, and the heating function is stable. The whole module machine anti-freezing system can prevent a module machine from being frozen, and the riskthat the module machine breaks down due to frost cracking of the shell tube is remarkably reduced.

Description

technical field [0001] The present application relates to the technical field of modular machines, in particular to an antifreeze system for modular machines. Background technique [0002] Modular machine (modular air-cooled cold (hot) water unit) is widely used in new and renovated large and small industrial and civil building air conditioning projects due to its remarkable cooling and heating performance. [0003] In the modular machine, the shell-and-tube heat exchanger is widely used in the modular air-cooled cold (hot) water unit due to its compact structure, good heat transfer performance, and easy cleaning. However, for a long time, the modular air-cooled cold (hot) water units sold outside are prone to internal leakage of the shell and tube. After analysis, the main reason is that the modular unit does not operate for a long time under cold conditions, and the internal fluorine system and water system are in a static state. Among them, the circulating water around ...

AI Technical Summary

Problems solved by technology

Among them, the circulating water around the shell-and-tube heat exchanger becomes cooling and standing water. If the temperature is too low, the water will gradually freeze, causing the volume expansion of the expansion tube at both ends of the shell-tube tube plate. The copper tube after the tube expansion process has a very thin tube wall. , after being squeezed by expanding water, it is easy to break, which will lead to the leakage of the internal fluorine system and significantly reduce the performance

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