Ternary environment-friendly mixed refrigerant, preparation method thereof and refrigerating system
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A mixed refrigerant and refrigeration system technology, applied in chemical instruments and methods, sustainable manufacturing/processing, chemical industry, etc., can solve the problems of poor environmental performance and low GWP of refrigerants, and achieve reduction of irreversible heat transfer losses, good Environmental protection effect
Active Publication Date: 2021-12-28
GREE ELECTRIC APPLIANCES INC
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[0004]
In order to solve the technical problem of poor environmental protection performance of refrigerants in the prior art, the primary purpose of the present invention is to propose an environmentally friendly mixed refrigerant, which has good environmental performance and has an extremely low GWP. It can meet the energy saving requirement and improve the energy efficiency of the system
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Embodiment 1
[0026] The three components of monofluoromethane (R41), fluoroethane (R161) and n-butane (R600) are physically mixed in a liquid phase at room temperature in a mass ratio of 45:50:5 to obtain a three-component environmental protection For the mixed refrigerant, the sum of the mass percentages of monofluoromethane (R41), fluoroethane (R161) and n-butane (R600) is 100%.
Embodiment 2
[0028] The three components of monofluoromethane (R41), fluoroethane (R161) and n-butane (R600) are physically mixed in a liquid phase at room temperature at a mass ratio of 50:40:10 to obtain a three-component environmental protection For the mixed refrigerant, the sum of the mass percentages of monofluoromethane (R41), fluoroethane (R161) and n-butane (R600) is 100%.
Embodiment 3
[0030] The three components of monofluoromethane (R41), fluoroethane (R161) and n-butane (R600) are physically mixed in a liquid phase at room temperature at a mass ratio of 10:70:20 to obtain a three-component environmental protection For the mixed refrigerant, the sum of the mass percentages of monofluoromethane (R41), fluoroethane (R161) and n-butane (R600) is 100%.
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Abstract
The invention relates to the technical field of refrigerants, in particular to a ternary environment-friendly mixed refrigerant, a preparation method of the ternary environment-friendly mixed refrigerant and a refrigerating system. The ternary environment-friendly mixed refrigerant comprises a first component, a second component and a third component, wherein the first component is fluoromethane, the second component is fluoroethane, and the third component is one of n-butane, dimethyl ether, isobutane, 2, 3, 3, 3-tetrafluoropropene, trans-1, 3, 3, 3-tetrafluoropropene, tetrafluoroethane, 1, 1-difluoroethane and 1, 1, 1, 3, 3-pentafluoropropane. The ternary environment-friendly mixed refrigerant has good environment protection performance, and the GWP is smaller than or equal to 500; and the obtained non-azeotropic mixed working medium has a temperature change phenomenon in a phase change process, so that irreversible heat transfer loss caused by a heat exchange temperature difference between the non-azeotropic mixed working medium and a heat exchange fluid can be reduced, system circulation is close to Lorenz circulation, and the purposes of energy conservation and efficiency improvement are achieved.
Description
technical field [0001] The present application relates to the technical field of refrigerants, in particular, to a ternary environmentally friendly mixed refrigerant, a preparation method of the environmentally friendly mixed refrigerant, and a refrigeration system. Background technique [0002] In recent years, in response to global warming and frequent extreme weather, a series of policies have been formulated internationally to accelerate the phase-out of HCFCs refrigerants and gradually reduce the use of HFCs to limit the use of high-GWP refrigerants. According to the Montreal Protocol and the Kyoto Protocol, the next-generation refrigerant should have the characteristics of zero ODP and low GWP. At present, the HFCs refrigerants R134a, 410A, R134a, R404A and R407C widely used in the refrigeration and air-conditioning industry have high warming potential (GWP≥1300), so it is urgent to find alternative refrigerants with excellent environmental performance. Considering th...
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