Full liquid type ice water machine

Abstract

The invention relates to a flooded water chiller, comprising a compressor, a condenser, a control valve for refrigerant flow, an evaporator and a controller. The compressor comprises a temperature detector and there is a pressure detector on the condenser. The control valve for refrigerant flow is connected between the condenser and the evaporator for controlling refrigerant flow entering into the evaporator. The controller obtains a target output temperature of compressor according to the calculation of condensing pressure value and the target output temperature of compressor is compared with the actual temperature of compressor measured by the temperature detector on the compressor to determine opening degree of the control valve of refrigerant flow. In addition, a control method for refrigerant liquid level of flooded water chiller evaporator is disclosed at the same time.

Description

technical field [0001] The invention relates to a flooded ice water machine, in particular to a flooded ice water machine with automatic control of the height of the refrigerant liquid level. Background technique [0002] With the advancement of science and technology, people's requirements for the comfort of daily life are also increasing. The basic requirement of a comfortable living environment is a comfortable indoor temperature, so that the human body can work and rest comfortably in such an environment. In addition, lower temperatures are often required for food preservation and production. [0003] Therefore, the technology of refrigeration and air conditioning is also improving day by day. For large-scale central air-conditioning equipment, an ice water machine composed of a motor, a compressor, a heat exchanger, and a refrigerant expansion device is usually used to cool down the ice water, and the ice water circulation system sends it to the blower or air conditio...

AI Technical Summary

Problems solved by technology

[0012] Another object of the present invention is to provide a flooded ice water machine with a new structure. The technical problem to be solved is to use a relatively cheap and highly reliable temperature detector to measure the outlet temperature of the compressor. To control the refrigerant flow and ensure the refrigerant liquid level of the evaporator, and then replace the expensive liquid level sensor, effectively reduce the manufacturing cost of the flooded ice water machine, so it is more suitable for practical use

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