Gas-solid mixed type nano-refrigerant filling device
A hybrid, refrigerant technology, applied in the direction of refrigerants, refrigerators, refrigeration components, etc., can solve the problems of air mixing, the device cannot be directly applied to the refrigeration system, damage system components, etc., to improve heat exchange performance and good application prospects. , Overcome the effect of air mixing
Active Publication Date: 2016-05-18
SHANGHAI JIAO TONG UNIV
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Problems solved by technology
However, the design of the bypass circuit means that the existing refrigeration system needs to be modified, so the device cannot be directly applied to the existing refrigeration system
Also, when nanoparticles are added to the bypass loop, some air will be mixed into the refrigeration system, which will reduce system energy efficiency and may damage system components
Method used
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Embodiment 1
[0020] Such as figure 1 As shown, this embodiment includes: refrigerant storage tank 2, charging inlet stop valve 3, storage bin inlet regulating valve 10, storage bin 8, gas exchange membrane 9, gas-solid mixing bin 5, storage bin outlet A regulating valve 11, a shut-off valve 12 for vacuuming and a vacuum pump 14, wherein: the refrigerant storage tank 2 is respectively connected to the inlet of the storage bin 8 and an inlet of the gas-solid mixing bin 5 through the filling inlet shut-off valve 3, and the gas-solid mixing bin 5 is connected to each other. The solid mixing chamber 5 is connected with the refrigeration system loop 16;
[0021] The gas exchange membrane 9 divides the storage bin 8 into upper and lower layers, wherein: the inlet of the upper layer storage bin 8a is provided with a storage bin inlet regulating valve 10, and the outlet of the upper layer storage bin 8a is connected with a vacuum pump 14 and set There is a shut-off valve 12 for vacuuming; the lowe...
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The invention belongs to the technical field of refrigeration systems, and provides a gas-solid mixed type nano-refrigerant filling device. The gas-solid mixed type nano-refrigerant filling device comprises a refrigerant storage tank, a storage cabin with a gas exchange film and a gas-solid mixing cabin, wherein the refrigerant storage tank is connected with an inlet of the storage cabin and one inlet of the gas-solid mixing cabin through filling inlet stop valves correspondingly, and an outlet of the gas-solid mixing cabin is connected with a refrigeration system loop. The storage cabin is divided into an upper layer and a lower layer by the gas exchange film, an inlet of the upper layer of the storage cabin is provided with a storage cabin inlet adjusting valve, and an outlet of the upper layer of the storage cabin is connected with a vacuum pump and provided with a stop valve used for vacuumizing; nano-particles are arranged in the lower layer of the storage cabin, and an outlet of the lower layer of the storage cabin is connected with the other inlet of the gas-solid mixing cabin and provided with a storage cabin outlet adjusting valve. By means of the gas-solid mixed type nano-refrigerant filling device, the nano-particles and refrigerants are directly mixed on the basis of an existing refrigeration system which does not need to be modified, and meanwhile air can be prevented from being mixed in the refrigeration system.
Description
technical field [0001] The invention relates to a technology in the field of refrigeration systems, in particular to a gas-solid hybrid nano-refrigerant charging device. Background technique [0002] Nano-particles are mixed with conventional refrigerants to form nano-refrigerants, and the heat transfer performance of nano-refrigerants is significantly improved compared with conventional refrigerants. However, the internal pressure of the refrigeration system is much higher than atmospheric pressure and needs to be isolated from the air, which makes it difficult to directly add and inject nanoparticles. [0003] The current method of nano-refrigerant filling is to first mix nanoparticles with lubricating oil and disperse them ultrasonically to form "nano-oil", and then inject them into the refrigeration system. Because the solubility of nanoparticles in lubricating oil is very low, and the oil content in the refrigeration system is low (generally 1-5wt%), so this charging m...
Claims
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IPC IPC(8): F25B45/00
CPCF25B45/00F25B2345/001
Inventor 丁国良林灵楠
Owner SHANGHAI JIAO TONG UNIV