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High pressure gas vortex expanded carbon dioxide low temperature refrigerating system

A low-temperature refrigeration system and high-pressure gas technology, used in refrigerators, refrigeration and liquefaction, compressors, etc., can solve the problems of low system performance coefficient, large throttling process loss of throttling and pressure-reducing components, and achieve no moving parts, Easy maintenance and lightweight structure

Inactive Publication Date: 2014-04-16
惠州市鹏强子力机械设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Existing CO 2 CO in the refrigeration system 2 The fluid is a transcritical cycle, the throttling process of the throttling step-down element has a large loss, and the performance coefficient of the system is low

Method used

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  • High pressure gas vortex expanded carbon dioxide low temperature refrigerating system
  • High pressure gas vortex expanded carbon dioxide low temperature refrigerating system
  • High pressure gas vortex expanded carbon dioxide low temperature refrigerating system

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] The schematic diagram of the low-temperature refrigeration system of the high-pressure gas vortex expansion of the present invention is as follows Figure 1-Figure 4 As shown, a gas cooler 1 , a heat exchanger 2 , a high pressure stage compressor 3 , a low pressure stage compressor 4 , an evaporator 5 and a vortex tube 6 are included. The vortex tube of the present invention is an improvement on the prior art, and the original hot section is improved into a hot diffuser section with a diffusion effect. Specifically: the vortex tube 6 includes a vortex chamber 8, a cold section 9 and a hot diffuser section 7, the hot diffuser section 7 includes a diffuser body 21 communicated with the vortex chamber 8, and the diffuser body 21 A saturated liquid collection groove 18 is provided on the inner wall of the saturated liquid collecti...

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Abstract

The invention discloses a high pressure gas vortex expanded low temperature refrigerating system, and provides a system for reducing pressure by virtue of vortex expansion. The high pressure gas vortex expanded carbon dioxide low temperature refrigerating system is characterized in that a vortex pipe comprises a vortex chamber, a cold section and a hot pressure expanding section, and the center of a bottom plate of the hot pressure expanding section is provided with a center baffle enabling cold gas in a center region to go back towards the cold section; the outlet of a high-pressure stage compressor is connected with the inlet of a gas cooler, and the outlet of the gas cooler is connected with a high-pressure gas inlet connecting pipe; one of cold gas outlet connecting pipes of the cold section is connected in parallel with a collected saturation liquid outlet connecting pipe and then is connected with the inlet of an evaporator, the other cold gas outlet connecting pipe is connected with a heat exchanger low temperature cold gas inlet connecting pipe, and a heat exchanger low temperature cold gas outlet is connected in parallel with the outlet of the evaporator and then is connected with the inlet of a low-pressure stage compressor; the outlet of the low-pressure stage compressor is connected in parallel with a heat exchanger high temperature hot gas outlet and then is connected with the inlet of the high-pressure stage compressor, and a hot gas outlet connecting pipe is connected with a heat exchanger high temperature hot gas inlet. The irreversible loss high pressure gas vortex expanded carbon dioxide low temperature refrigerating system provided by the invention is reduced by virtue of depressurization with vortex expansion.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a carbon dioxide low-temperature refrigeration system in which high-pressure gas vortex expands. Background technique [0002] With the rapid development of science and technology, the resulting environmental pollution and resource scarcity have caused the international community to pay attention to energy conservation and environmental protection, an important issue related to sustainable development. The replacement of natural working fluid and the improvement of the performance of the refrigeration system are problems to be solved urgently by the workers in the refrigeration industry. CO 2 Has good thermodynamic properties, improves CO 2 performance of refrigeration systems and the development of new CO 2 The refrigeration cycle system has attracted the attention of researchers. [0003] Existing CO 2 CO in the refrigeration system 2 The fluid is a transcritical cy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B9/04
Inventor 宁静红刘圣春郭宪民叶庆银
Owner 惠州市鹏强子力机械设备有限公司
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