Carbon dioxide transcrisis refrigeration circulation rotor type expansion energy-saving device

A refrigeration cycle and carbon dioxide technology, which is applied in refrigerators, refrigeration and liquefaction, gas cycle refrigerators, etc., can solve the problems of efficiency reduction, difficulty in coaxial expansion between the expander and the main compressor, and difficulty in guaranteeing the life of the generator.

Inactive Publication Date: 2003-05-21
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the method of recovering work, such as mechanical work to drive the generator to generate electricity, is difficult to use due to the unstable output voltage, and the energy conversion will cause energy loss, resulting in a decrease in efficiency
It is difficult to guarantee the life of the generator

Method used

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  • Carbon dioxide transcrisis refrigeration circulation rotor type expansion energy-saving device
  • Carbon dioxide transcrisis refrigeration circulation rotor type expansion energy-saving device
  • Carbon dioxide transcrisis refrigeration circulation rotor type expansion energy-saving device

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Experimental program
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Embodiment Construction

[0009] The present invention is in the layout of the system as attached image 3 The dotted box part in .

[0010] During installation, the inlet pipe port (11) of the expansion cylinder of the carbon dioxide transcritical refrigeration cycle rotor type expansion economizer (the present invention) is connected with the outlet of the gas cooler (25), and the exhaust port (18) is connected with the evaporator ( 24) is connected to the inlet, and the inlet of the compression cylinder is a gas-liquid separator, which separates the gas from the evaporator, and the exhaust gas at the outlet of the compression cylinder is mixed with the exhaust gas of the main compressor and enters the gas cooler.

[0011] When working, the supercritical high-pressure carbon dioxide fluid (usually with a pressure of about 10Mpa) enters the high-pressure chamber (B) from the intake pipe (11). (5) Rotate and drive the eccentric shaft (3) according to the attached figure 2 Rotate in the direction sho...

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Abstract

The carbon dioxide transcritical refrigeration circualting rotor type expansion energy-saving device is formed from cylinder body, rolling piston, eccentric wheel shaft, base seat and electromagnetic valve. The internal cavity of expansion energy-saving device can be divided into two high-pressure cavities and two low-pressure cavities by means of main and secondary bearings and partion board. After the carbon dioxide is come into the expasion cylinder, it can driven eccentric wheel shaft to make it rotate and make expansion cylinder produce volume change to lower liquid pressure and output mechanical power. According to the rotating angle of eccentric wheel shaft its circuit control system can output signal to control opening and closing of the electromagentic valve to control suction time of the expansion energy-saving device to make it circularly apply work.

Description

technical field [0001] The invention belongs to an energy-saving device in refrigeration air-conditioning or heating mechanical equipment. Background technique [0002] At present, the refrigerants commonly used in the refrigeration and air-conditioning industry are CFCs (chlorofluorocarbons) and HCFCs (hydrochlorofluorocarbons). Because of their damaging effects on the ozone layer and their greenhouse effect, scientists around the world are intensely researching alternatives. Among them, carbon dioxide has been reintroduced into the refrigeration heat pump industry due to its excellent environmental protection characteristics, good heat transfer and flow properties. Professor Gustav Lorentzen, the former chairman of the International Society of Refrigeration, first proposed the use of transcritical cycles in the early 1990s, using CO 2 Refrigerant is the fundamental method to solve CFC replacement. However, to achieve CO in industrial tech...

Claims

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Application Information

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IPC IPC(8): F25B9/00F25B9/06
CPCF25B9/06F25B9/008F25B2309/061
Inventor 马一太杨昭李敏霞张云宪涂铭海苏维诚
Owner TIANJIN UNIV
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