Hot air deicing refrigeration system of single-plate plate ice machine

A refrigeration system and plate ice technology, applied in the field of hot gas deicing refrigeration system of a single-group plate ice machine, can solve the problems of low exhaust pressure, low suction pressure, unstable refrigeration system, etc., to increase pressure and increase speed , to ensure the effect of stability

Inactive Publication Date: 2010-09-01
中机西南能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention provides a single-group plate ice machine hot gas deicing refrigeration system to improve the instability of the refrigeration system caused by low suction pressure and low exhaust pressure during the deicing process.

Method used

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  • Hot air deicing refrigeration system of single-plate plate ice machine
  • Hot air deicing refrigeration system of single-plate plate ice machine

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Embodiment Construction

[0010] For the sake of reference and clarity, the meanings represented by the symbols in the accompanying drawings are explained as follows:

[0011] 1. Refrigeration compressor, 2. High-efficiency oil separator, 3. Differential pressure solenoid valve, 4. Exhaust bypass valve, 5. Water-cooled condenser, 6. Liquid supply filter, 7. Gas-liquid separator with heat exchange , 8. Liquid supply solenoid valve, 9. Thermal expansion valve, 10. Liquid separator and capillary tube, 11. Plate ice plate heat exchanger, 12. Short circulation pipe, 13. Return air solenoid valve, 14. Return air hot gas Solenoid valve, 15, return air filter, 16, liquid supply hot gas solenoid valve, 17, bypass solenoid valve, 18, KVC pressure control valve.

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments a...

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PUM

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Abstract

The embodiment of the invention discloses a hot air deicing refrigeration system of a single-plate plate ice machine. In the hot air deicing refrigeration system of the single-plate plate ice machine, a bypass electromagnetic valve and a pressure control valve are sequentially connected in series between the outlet end of a pressure-difference electromagnetic valve and the outlet of a return-air filter. In the hot air deicing refrigeration system of the single-plate plate ice machine provided by the embodiment of the invention, a KVC pressure control valve and the bypass electromagnetic valve are connected in series between the output end of the pressure-different electromagnetic valve and the air outlet end of the return-air filter, wherein the bypass electromagnetic valve ensures that the air absorption pressure of a refrigeration compressor is not too low and that part of the hot air is used for deicing; and the KVC pressure control valve adjusts the opening thereof according to the pressure behind the valve to ensure that the suction pressure of the refrigeration compressor is identical with the pressure in an ice making process. Thus, the stability of the refrigeration system is ensured.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a single-group plate ice machine hot gas deicing refrigeration system. Background technique [0002] At present, the existing one-group plate ice machine hot gas deicing refrigeration system is divided into ice making stage and deicing stage. During the de-icing process, the high-temperature and high-pressure refrigerant passes through the plate-ice plate heat exchanger and undergoes de-icing, turning into a low-temperature and low-pressure refrigerant gas, so that the pressure of the gas returning to the gas-liquid separator with heat exchange is very low , the suction pressure of the refrigeration compressor is too low, which makes the work of the refrigeration compressor unstable, and even automatically stops the compressor, which aggravates the low suction pressure and low discharge pressure of the deicing, which can not completely deice and cause the whole The refrige...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/02F25B41/04
Inventor 刘楷周国均
Owner 中机西南能源科技有限公司
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