A constant temperature and humidity box refrigeration device

Abstract

A constant temperature and humidity box refrigeration device of the present invention includes two refrigeration lines and an evaporator in the box, and the first refrigeration line includes a first-stage refrigeration compressor, a first condenser, a first liquid storage tank and a second refrigeration compressor connected in sequence. A filter; the output end of the first filter is respectively connected to the first solenoid valve and the second solenoid valve; the first solenoid valve is connected to the evaporator through a manual valve; the second solenoid valve is connected to the expansion tank; the evaporator is connected to the evaporator through a The return line with a balance valve is connected to the primary refrigeration compressor; the second refrigeration line includes the secondary refrigeration compressor, the second condenser, the second liquid storage tank and the second filter; the second filter passes through the second The three solenoid valves are connected to the return line of the first refrigeration line; the secondary refrigeration compressor and the evaporator are directly connected through the fourth solenoid valve; the expansion tank is connected to the fourth solenoid valve and the evaporator through another manual valve In the connecting pipeline; the evaporator is also directly connected to the secondary refrigeration compressor through another return line.

Description

technical field [0001] The invention relates to the field of electromechanical equipment, in particular to a refrigeration device for a constant temperature and humidity box. Background technique [0002] A problem with conventional manufacturing of refrigeration devices is that the development of production lines and the like requires high investment costs. This results in little flexibility, mainly in the ability to produce small series of refrigeration units with different sizes and multiple equipment options. Often, new product designs require large product families that are economically viable. Manufacturers are reluctant to develop products with new approaches because the economic stakes are too great, so consistent production lines, or more exotic products will cost more to produce and sell for a higher price. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a constant temperature and humidity box re...

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Problems solved by technology

[0003] The main technical problem to be solved by the present invention is to provide a constant temperature and humidity box refrigeration device, which has a reasonable design and a simple structure, and solves the problem that the system is too complicated to cause reflux waste and not save energy

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