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Refrigeration method and apparatus therefor

A refrigeration method and refrigeration device technology, which is applied in the direction of refrigerators, refrigeration and liquefaction, energy-saving heating/cooling, etc., can solve the problems of high operating noise of compressors and damage to the environment by refrigerant Freon, so as to avoid vibration and noise and benefit Environmental protection, good effect of environmental protection

Inactive Publication Date: 2006-04-26
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vapor compression refrigeration is the most economical and widely used refrigeration method at present. Its principle is to use the latent heat of evaporation of refrigerant (such as Freon 22) liquid to absorb heat from the object to be cooled to achieve refrigeration. The refrigeration equipment is mainly composed of compression The compressor is composed of four major parts: machine, condenser, throttling mechanism (such as expansion valve, main thin tube, etc.), and evaporator. The compressor compresses the low-pressure steam sent from the evaporator into high-temperature and high-pressure steam and enters condensation The evaporator is cooled by air or water to condense into a high-pressure liquid, and then becomes a low-pressure liquid after being throttled by a throttling mechanism, so it absorbs heat in the evaporator, and a low temperature is obtained in a cold place, and the low-pressure steam that absorbs the heat of vaporization returns to the evaporator. Compressor, continue to the next cycle; the refrigerant Freon used in this refrigeration method seriously damages the environment, and the compressor works loudly

Method used

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  • Refrigeration method and apparatus therefor
  • Refrigeration method and apparatus therefor
  • Refrigeration method and apparatus therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The specific structure of the present invention is as figure 1 shown by figure 1 It can be seen that the refrigeration device includes a cavity 3 that can be sealed. The cavity 3 is provided with a liquid inlet and a liquid outlet. The liquid inlet is connected to the water storage container 2. A water storage container 19 is arranged under the liquid outlet. The cavity 3 communicates with the vacuum pump 6 through the pipeline 10, and the vacuum pump 6 is provided with an exhaust port 7; the cavity 3 is also provided with a pipeline 16, and a hole 17 is opened on the pipeline 16, and one end of the pipeline 16 extends out of the cavity to connect with the pump. The air machine 12 is connected; a liquid level gauge 15 is fixedly arranged on the inner wall of the cavity 3; on-off valves 1, 8, 9, 11, 13, 14, 18 are arranged on the liquid inlet, liquid outlet and pipelines 10, 16; The cavity 3 is filled with water 4 , and there is a space 5 above the water 4 .

[0026] T...

Embodiment 2

[0028] The device part of this embodiment is the same as that of Embodiment 1. The specific operation steps are the same as embodiment 1 except the following features: the water 4 in the chamber 3 which has been vacuumed and the temperature is reduced cools the gas, and when the water temperature rises, the on-off valve 11 is opened, and the air pump 12 pumps the gas Pumped into the space 5 in the chamber 3, the gas pressure is applied on the water surface, and the water is quickly discharged into the water storage container 19 through the valve 18, and then the water in the water storage container 2 is re-input into the chamber 3.

Embodiment 3

[0030] This embodiment is the same as Embodiment 1 except for the following features: the liquid inlet provided in the chamber 3 is directly connected to the water pipe, and water is input into the chamber 3 through the water pipe.

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Abstract

The invention provides a refrigerating method, including the below concrete steps: placing liquid in a cavity, then sealing the cavity and pumping air to release the gas from the liquid, thus lowering the temperature of the liquid in the cavity, then using the liquid as cooling working medium to cool other substances. A device implementing this method includes a sealable cavity, on which is set liquid inlet and outlet, and the air pumping device is connected with the cavity through pipeline. The invention has the advantages of saving energy and reducing consumption, good environmental protection effect, and high refrigerating efficiency, and has simple structure and low fabrication cost, easy to spread and use, and has obvious economic benefits and good prospect in market.

Description

technical field [0001] The invention relates to the field of refrigeration and low temperature engineering, in particular to a refrigeration method and a device thereof. Background technique [0002] At present, the methods of refrigeration mainly include: thermoelectric refrigeration, magnetic refrigeration, gas adiabatic expansion refrigeration, liquid evaporative refrigeration and other methods. Among them, thermoelectric refrigeration is also called "semiconductor refrigeration" or "electronic refrigeration". It is a special refrigeration method that utilizes the thermoelectric refrigeration effect. Specifically, it uses two different types of semiconductor materials, and the two ends are connected with conductive materials to form a The loop is connected to a DC power supply; when the circuit is turned on, the temperature of one end of the semiconductor material decreases (endothermic cooling), and the temperature of the other end increases, re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B15/16F25B23/00
CPCY02A30/27Y02B30/62
Inventor 周照耀李元元龙雁王郡文
Owner SOUTH CHINA UNIV OF TECH