Carbon dioxide liquid evaporation self-driven refrigerating system

Abstract

The invention relates to a carbon dioxide liquid evaporation self-driven refrigerating system. The refrigerating system is formed by sequentially connecting a carbon dioxide low-temperature storage tank, a needle valve, an evaporator, a fan, a capillary pipe, a heat exchanger, a one-way valve and a cutoff valve through a pipeline, wherein the carbon dioxide low-temperature storage tank is provided with a safety valve, a release valve and a ball valve; the output end of the carbon dioxide low-temperature storage tank is communicated with the input end of the ball valve; and the output end of the ball valve is connected with the input end of the needle valve. According to the technical scheme, carbon dioxide liquid is mainly pressed into the evaporator for evaporative refrigeration by using the internal pressure of the carbon dioxide low-temperature storage tank, and a refrigerant is directly discharged into the atmospheric air after absorbing heat. Refrigeration lasting for a corresponding period of time is performed according to the storage volume of the carbon dioxide low-temperature storage tank, so that refrigeration without any external driving power is realized, that is to say, normal work of the refrigerating system can be ensured when power is dissipated.

Description

[0001] technical field [0002] The invention relates to an air-conditioning refrigeration system, in particular to a carbon dioxide liquid evaporation self-driven refrigeration system. Background technique [0003] At present, the refrigeration system usually needs to be driven by external power to achieve refrigeration, but when the power or backup power is completely lost, some important equipment, such as high-end electronic equipment, instruments, hospitals, weaponry and other equipment There is still a need for refrigeration to ensure that it can be safely operated and shut down within a certain period of time. At this time, in an environment without external power drive, refrigeration cannot be realized. Contents of the invention [0004] The purpose of the present invention is to provide a carbon dioxide liquid evaporation self-driven refrigeration system, which can ensure local room temperature control within a certain period of time without any external drive en...

AI Technical Summary

Problems solved by technology

[0003] At present, the refrigeration system usually needs to be driven by external power to achieve refrigeration, but when the power or backup power is completely lost, some important equipment, such as high-end electronic equipment, instruments, hospitals, weapons and other equipment There is still a need for refrigeration to ensure that it can be safely operated and shut down within a certain period of time. At this time, refrigeration cannot be realized without external power drive

Images