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Energy-saving compression refrigeration method

A compression refrigeration and compressor technology, which is applied in refrigerators, compressors, refrigeration components, etc., can solve the problems of high energy consumption and poor operation stability, and achieve reduced energy consumption, low power consumption, improved stability and simplicity Effect

Inactive Publication Date: 2016-01-20
王晓伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional technology has the disadvantages of poor operational stability and high energy consumption

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An energy-saving compression refrigeration method. The gaseous propylene from the cooling user enters the inlet of the first stage of the compressor after the separator of the compressor separates the entrained liquid phase; the propylene compressed in the first, second and third stages first passes through the The outlet cooler is cooled, and after being condensed by the condenser, the liquid propylene flows into the buffer tank, and after decompression, it is sent to the flash tank for intermediate flash evaporation; the gas phase of the flash tank is separated by the three-stage inlet separator of the compressor and then sent to the compressor At the entrance of the third section of the machine, the liquid phase of the flash tank is divided into two streams. One stream is decompressed again and then sent to the shell side of the subcooler. After the liquid is separated, it is sent to the inlet of the second stage of the compressor, and the other is sent to the tube of...

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PUM

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Abstract

The invention relates to the technical field of compression refrigeration, in particular to an energy-saving compression refrigeration method. Liquid-phase propylene carried in gaseous-state propylene from a cooling-capacity user is separated by a separator of a compressor, and then the gaseous-state propylene enters a first-section inlet of the compressor; after being subjected to first-section, second-section and third-section compression, the propylene is firstly cooled through an outlet cooler, and then is condensed by a condenser; the liquid-state propylene flows into a buffer tank, and then is sent into a flash tank for intermediate flash after being decompressed; the gas phase of the flash tank is sent into a third-section inlet of the compressor after being subjected to liquid separation by a separator at the third-section inlet of the compressor, and the liquid phase of the flash tank is divided into two portions; propylene discharged from the first section, the second section and the third section of the compressor and the cooling capacity user is sent into a refrigerant discharge evaporation system, and then is sent into the first section inlet of the compressor for performing circular compression refrigeration after being heated by a hot medium; and a compressor anti-surge loop is led from the position behind the compressor outlet cooler and before the condenser. A refrigerant storage tank is included into a refrigeration loop and serves as the liquid-state refrigerant buffer tank, so that the stability and convenience in operation are realized.

Description

technical field [0001] The invention relates to the technical field of compression refrigeration, in particular to an energy-saving compression refrigeration method. Background technique [0002] In the chemical industry, gaseous refrigerant pressurization, condensation and throttling refrigeration technology mostly provide the necessary cold environment for units such as low-temperature methanol washing, low-temperature oil washing, ammonia synthesis and liquid ammonia separation. In traditional industrial production, two-stage compression refrigeration is often used. The gaseous refrigerant flashed at the shell side of the subcooler is merged into the gaseous refrigerant flashed by the cooling user and then sent to the first stage inlet of the compressor; the anti-surge circuit of the compressor is derived from the compressor The outlet of the compressor; the condensed liquid refrigerant gravity flows to the pressure reducing valve to decompress and then flashes; the liqui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B1/10F25B41/00
Inventor 王晓伟
Owner 王晓伟