Multi-stage temperature-controlling and humidity-adjusting cooling system

Abstract

The present invention relates to the technical field of cooling machines and particularly relates to a multi-stage temperature-controlling and humidity-adjusting cooling system. The multi-stage temperature-controlling and humidity-adjusting cooling system at least comprises three cooling systems of a first humidity-adjusting and temperature-controlling system, a second cooling system and a third cooling system; the first humidity-adjusting and temperature-controlling system comprises a first compressor, a first condenser and a hot coil connected by pipelines; the second cooling system comprises a second compressor, a second condenser, a throttling valve and a second evaporator successively connected by pipelines; the second evaporator is connected with the second compressor through pipelines to form a refrigeration circuit; and the third cooling system is the same as the second cooling system. The first humidity-adjusting and temperature-controlling system is used to conduct temperature controlling and adjusting; the second cooling system and third cooling system conduct combined refrigeration; and according to the refrigeration needs, the second cooling system and third cooling system are enabled or disenabled, so that the second cooling system and third cooling system are used a supplement to the first humidity-adjusting and temperature-controlling system.

Description

technical field [0001] The invention relates to the technical field of coolers, in particular to a cooling system with multi-stage temperature control and humidity regulation. Background technique [0002] When storing grain in the grain industry, the average grain temperature below 15°C is called low-temperature storage, and the average grain temperature between 15°C-20°C is called quasi-low temperature storage. The low-temperature storage of grain is recognized as a green, environmentally friendly, safe, and fresh-keeping method. With the improvement of people's living standards, the requirements for food safety and green pollution-free are getting higher and higher. Grain coolers have the advantages of ensuring bulk grain cooling, keeping fresh, reducing the use of pesticides, etc., and are used more and more. [0003] In order to meet the cooling capacity, the existing grain coolers generally use multiple compressors for refrigeration. During the application process, t...

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Problems solved by technology

[0004] Aiming at the problems of the above-mentioned existing grain cold dryers that are on and off, unable to cooperate effectively in cooling, resulting in waste of energy and loss of equipment, poor cooling effect, and no dehumidification function, the present invention provides a multi-level temperature control system. The wet cooling system, through the joint refrigeration of multiple compressor units, turns on the compressor units for cooling according to the cooling needs, and uses its own heat exchanger to heat and dehumidify, improve the comprehensive utilization of energy, and the equipment structure is simple and easy to control

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