Heat source driven vacuum refrigerating system

A vacuum refrigeration and heat source technology, applied in refrigerators, refrigeration and liquefaction, machines using waste heat, etc., can solve the problems of limited carrying capacity and limited applicability of ejectors, and achieve heat exchanger savings, improved applicability, and structural simple effect

Active Publication Date: 2012-08-01
浙江和际投资管理有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coefficient of performance COP (conversion ratio between energy and heat, referred to as energy efficiency ratio) of ejector refrigeration technology is too low, generally lower than

Method used

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  • Heat source driven vacuum refrigerating system
  • Heat source driven vacuum refrigerating system
  • Heat source driven vacuum refrigerating system

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Embodiment Construction

[0026] The core of the present invention is to provide a vacuum refrigeration system driven by a heat source. The vacuum refrigeration system has high working refrigeration efficiency, low cost and good applicability.

[0027] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] The heat source-driven vacuum refrigeration system provided by the present invention includes an evaporation chamber, an air extraction device and a condensation chamber, the air extraction port of the air extraction device communicates with the steam outlet of the evaporation chamber, and the gas outlet of the air extraction device communicates with the vapor outlet of the evaporation chamber. The inlet of the condensing chamber is connected, and it is characterized in that the air extraction device includes a...

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Abstract

The invention discloses a heat source driven vacuum refrigerating system, which comprises an evaporation chamber, an air extractor and a condensation chamber, wherein the extraction opening of the air extractor is communicated with a steam outlet of the evaporation chamber, the gas outlet of the air extractor is communicated with the inlet of the condensation chamber, and the air extractor comprises a centrifugal turbine and a centripetal turbine which is coaxial with the centrifugal turbine; power gas sequentially passes by a radial communicating port and an axial communicating port of the centripetal turbine; and the steam outlet of the evaporation chamber is communicated with the axial communicating port of the centrifugal turbine, and the inlet of the condensation chamber is communicated with the radial communicating port of the centrifugal turbine. The vacuum refrigerating system utilizes the power gas to drive the centripetal turbine so as to drive the centrifugal turbine to carry out vacuum-pumping. The vacuum refrigerating system takes water as a working medium, does not have depletion ozone and greenhouse gas emission, and has the advantage of environmental friendliness. A high-speed turbomachine is used, so the volume flow is large, the defect of small flow due to the small density of water which is taken as the working medium can be made up, and meanwhile, the vacuum refrigerating system has the advantages of simple and compact structure and the like.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a vacuum refrigeration system driven by a heat source. Background technique [0002] Vacuum refrigeration is a technology that has been around for decades. Its basic principle is to use the method of vacuuming and depressurization to make the liquid in the object to be cooled undergo adiabatic evaporation in a vacuum (low pressure) state, and the evaporation process absorbs heat to cool down the object to be cooled. The outstanding advantage of vacuum refrigeration technology is the fast refrigeration speed, which is mainly used for rapid refrigeration of food, fruit and other items. Vacuum refrigeration generally uses water as the working medium, which has the advantage of environmental protection compared with the common air conditioning system using Freon working medium. The vacuum refrigeration system is generally composed of vacuum chamber, evaporation chamber, conde...

Claims

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Application Information

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IPC IPC(8): F25B11/00F25B27/02F25B27/00
CPCY02A30/274
Inventor 邹江王耀光王景鹏
Owner 浙江和际投资管理有限公司
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