a co 2 Liquid working medium filling device and method for experimental system
An experimental system and liquid working medium technology, applied in the direction of refrigeration and liquefaction, refrigeration components, refrigerators, etc., can solve problems such as energy consumption, earth biological hazards, and ozone layer destruction, so as to reduce the overall experiment time, improve the experimental technology level, The effect of fast filling speed
Active Publication Date: 2017-02-22
INST OF MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology
CO 2 It has the characteristics of low critical temperature and high operating pressure. Due to the limitation of the technical level at that time, CO 2 Cycle efficiency of vapor compression refrigeration is low
After the 1930s, Freon refrigerants were widely used in the world. However, in the 1970s, it was discovered that the ozone layer in the atmosphere was destroyed due to the extensive use of Freon refrigerants, which caused the creatures on the earth to suffer from ultraviolet rays. At the same time, freon refrigerants can also cause the greenhouse effect
With this gaseous CO 2 Compression filling device, on the one hand, the compressor consumes a lot of electricity; on the other hand, due to the gaseous CO 2 is compressed, the temperature rises, and the CO entering the experimental system 2 Cooling water is also needed for cooling, which also consumes energy
With this gaseous CO 2 Another disadvantage of the compression filling device is that the filling speed of the working fluid is very slow and the filling efficiency is very low
Method used
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[0023] Such as figure 1 As shown, this CO 2 The liquid working medium filling device of the experimental system includes a clamping device, a gas cylinder rack, a CO 2 Gas cylinders, electric heating devices, high pressure hoses, CO 2 The gas cylinder is fixed on the gas cylinder rack through the clamping device, and the gas cylinder rack stands on the ground, and the CO 2 The outlet of the gas cylinder faces the ground and there is a gas cylinder valve at the outlet, and the filling port of the experimental system working fluid filling part is equipped with an experimental system filling valve. 2 The outlet of the gas cylinder is connected with the filling port of the working medium filling part of the experimental system through a high-pressure resistant hose, and the electric heating device is in CO 2 on the outer wall of the cylinder.
[0024] Due to CO 2 During the filling process, the CO in the cylinder 2 There is an endothermic process of evaporation, and the CO i...
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The invention discloses a CO2 experiment system liquid work medium injection device which is small in electricity consumption, high in injection speed and favorable for shortening the overall experiment time and improving the experiment technical level. The CO2 experiment system liquid work medium injection device comprises a clamping device, a gas cylinder rack, a CO2 gas cylinder, an electric heating device and a high-pressure-resistant hose, wherein the CO2 gas cylinder is fixed to the gas cylinder rack through the clamping device, the gas cylinder rack is erected on the ground, the outlet of the CO2 gas cylinder faces the ground and provided with a gas cylinder valve, an experiment system injection valve is arranged at an injection port of an experiment system work medium injection component, the outlet of the CO2 gas cylinder and the injection port of the experiment system work medium injection component are connected through the high-pressure-resistant hose, and the electric heating device is arranged on the outer wall of the CO2 gas cylinder. The invention further provides a CO2 experiment system liquid work medium injection method adopting the device.
Description
technical field [0001] The invention belongs to the technical field of energy utilization, in particular to a CO 2 A liquid working fluid filling device for an experimental system, and a method for using the device. Background technique [0002] 1880s to 1930s, CO 2 As the first generation refrigerant, it was widely used in refrigeration and air conditioning systems. CO 2 It has the characteristics of low critical temperature and high operating pressure. Due to the limitation of the technical level at that time, CO 2 The cycle efficiency of vapor compression refrigeration is low. After the 1930s, freon refrigerants were widely used in the world, but in the 1970s, it was discovered that the ozone layer in the atmosphere was destroyed due to the extensive use of freon refrigerants, which caused the creatures on the earth to suffer from ultraviolet rays. , At the same time, freon refrigerants can also cause the greenhouse effect. [0003] Since freon refrigerants generall...
Claims
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IPC IPC(8): F25B45/00
CPCF25B45/00
Inventor 潘利生魏小林李博李腾
Owner INST OF MECHANICS CHINESE ACAD OF SCI