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Screw brine refrigeration unit

A salt water unit, screw type technology, applied in compressors, refrigerators, refrigeration components, etc., can solve the problems of unstable oil supply, high oil supply temperature of compressors, affecting compressor efficiency, etc. oily effect

Active Publication Date: 2013-02-06
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oil in the oil separator of the screw type brine unit in the prior art directly enters the compressor for oil supply, and the oil supply temperature of the compressor is high and the oil supply is unstable, which affects the efficiency of the compressor

Method used

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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below in conjunction with accompanying drawings:

[0022] Such as figure 1 As shown, the screw type brine unit of the present invention includes compressors 1A, 1B, and an oil cooler 2 connected to the compressors 1A, 1B, a condenser 3, a dry filter 4, an economizer 5, and an evaporator 6 And oil separator 7.

[0023] Wherein, the compressors 1A, 1B are connected in parallel. The output cooling capacity of the compressor 1A or 1B can be adjusted through the slide valves of the compressors 1A, 1B and respectively controlling the start and stop of the two compressors 1A, 1B. When the cooling capacity load of the screw type brine unit is small, one compressor can be turned on through the control system to run at 1A to realize the operation of adjusting the cooling capacity from 12.5% ​​to 50%. If the cooling capacity demand is large, the control system of the screw type brine unit will automatically Detection ...

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Abstract

The invention discloses a screw brine refrigeration unit, which comprises compressors, an oil cooler, a condenser, a dry filter, an economizer, an evaporator and an oil separator, wherein the oil cooler, the condenser, the dry filter, the economizer, the evaporator and the oil separator are connected with the compressors; an oil outlet pipe of the oil separator comprises a first branch and a second branch; the oil of the first branch oil is not cooled by the oil cooler, and the second oil branch is connected with the first branch and the compressor after the oil of the second branch is cooled by the oil cooler. The temperature and the flow of the oil of the screw brine refrigeration unit entering each compressor are controllable; the stability of the temperature of the oil entering each compressor is ensured, and the oil supply is enough; adjustment of cold flow in a 12.5-100% of large range is achieved by parallel connection of two compressors, and the outlet water temperature range is -10 DEG C to 50 DEG C.

Description

technical field [0001] The invention relates to the field of industrial refrigeration, in particular to a screw type brine unit. Background technique [0002] The screw type brine unit is suitable for industrial and commercial refrigeration or similar purposes: including providing low-temperature frozen water for the production process of fine chemicals, electroplating, shoemaking, injection molding, ice making, cold drinks, health care products, blood products, pharmaceuticals and other industries. The oil in the oil separator of the screw type brine unit in the prior art directly enters the compressor for oil supply, and the oil supply temperature of the compressor is high and the oil supply is unstable, which affects the efficiency of the compressor. Contents of the invention [0003] The object of the present invention is to provide a screw type brine unit, which can reduce the oil supply temperature of the compressor and improve the reliability and efficiency of the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/04F25B41/06F25B31/00
Inventor 于洪海苗志强陈涛军肖福佳成浩霍美琳
Owner GREE ELECTRIC APPLIANCES INC
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