Dual working condition refrigeration system for making ice and cold water

Abstract

The invention discloses a dual working condition refrigeration system for making ice and cold water, which comprises a refrigeration compressor, a condenser and an evaporator serving as ice-making equipment, and also comprises a refrigerant feed pump used for supplying a liquid refrigerant condensed by the condenser to the evaporator. A pipeline between the feed pump and the evaporator is provided with a one-way valve; a refrigerant outlet of the evaporator is connected in parallel with an air return valve and an air return bypass throttle valve; an air outlet of the refrigeration compressor is communicated with the evaporator through a hot air deicing electromagnetic valve for deicing. The dual working condition refrigeration system also comprises a temperature sensor for measuring the water inlet temperature of the evaporator and a controller. The temperature sensor is used as the input of the controller; the evaporation temperature of the evaporator is not controlled; and the controller is connected with the air return valve, the air return bypass throttle valve and the hot air deicing electromagnetic valve and controls the on / off of the air return valve, the air return bypass throttle valve and the hot air deicing electromagnetic valve in various working conditions. The refrigeration system can work under dual working conditions, and has high efficiency.

Description

technical field [0001] The invention relates to a refrigerating system, in particular to a refrigerating system capable of realizing double-working conditions of ice making and cooling water. Background technique [0002] At present, the evaporator of the ice machine or the refrigeration system uses differential pressure to supply liquid, and the superheat degree of the outlet refrigerant gas is an index that needs to be controlled. Usually, the evaporation temperature of the refrigerant in the evaporator is basically kept constant, and the change of the refrigeration load is It is achieved by adjusting the amount of liquid supplied to the evaporator, that is, the evaporation amount of the refrigerant. Therefore, the evaporator usually has only two working processes at present, namely, the ice making process and the ice melting process. When low-temperature cold water is required, it is usually necessary to exchange heat between water and ice to cool the water, instead of di...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the current ice machine cannot realize the dual working conditions of ice making and cooling water due to the use of differential pressure liquid supply, the purpose of this invention is to provide a new type of refrigeration system, which can directly use the evaporator to realize ice making Work with cooling water in dual working conditions

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