Evaporator refrigerant flow rate distribution control method and device and air conditioner system
A technology of distribution control device and refrigerant flow, applied in evaporator/condenser, refrigeration and liquefaction, refrigerator and other directions, can solve the problems of uneven temperature distribution in the flow path, reduced air conditioning performance, unreasonable, etc., to achieve refrigerant flow distribution Reasonable, improve the cooling and heating performance, improve the effect of adaptability
Active Publication Date: 2017-07-21
WUHAN REFRIGERATION EQUIP OF MIDEA GROUP +1
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Problems solved by technology
Appropriate flow path arrangement can make full use of the latent heat of the refrigerant and improve the cooling and heating performance; poor flow path arrangement will cause uneven temperature distribution of each flow path, which may cause the branch with a large refrigerant flow rate to fail to completely evaporate , and the branch refrigerant with a small flow rate evaporates prematurely, so that the latent heat of the circulating refrigerant cannot be fully utilized, reducing the performance of the air conditioner
At the same time, since air conditioner manufacturers design products, the flow path design mainly refers to the design working conditions, so a reasonable flow path under the design working conditions may not be reasonable in the actual application of the user
Method used
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[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0032] It can be understood that, for an air-conditioning system in which the evaporator is divided into multiple channels, such as a heat pump air-conditioning system, when the frequency of the compressor is constant and the state of the suction port is constant, the circulation volume of the air-conditioning refrigerant is basically determined, and the optimal condition of the refrigerant outlet of the evaporator is generally The outlet temperature is slightly overheated. However, due to the influence of the air supply system o...
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The invention discloses an evaporator refrigerant flow rate distribution control method. An evaporator comprises a plurality of refrigerant flow paths. The refrigerant flow rate distribution control method comprises the steps that refrigerant outlet temperatures of the multiple refrigerant flow paths under current working conditions are detected correspondingly; the outlet superheat degrees of all the refrigerant flow paths are calculated according to the refrigerant outlet temperatures and refrigerant saturation temperatures of the refrigerant flow paths; and the refrigerant flow rates of the multiple refrigerant flow paths are adjusted according to the outlet superheat degrees of the refrigerant flow paths correspondingly. According to the evaporator refrigerant flow rate distribution control method, refrigerant distribution is more reasonable, and the use ratio of latent heat of evaporation of a refrigerant under the current working conditions can be increased. The invention further discloses an evaporator refrigerant flow rate distribution control device and an air conditioner system.
Description
technical field [0001] The invention belongs to the technical field of electric appliance manufacturing, and in particular relates to an evaporator refrigerant flow distribution control method, an evaporator refrigerant flow distribution control device and an air conditioner system. Background technique [0002] At present, the indoor evaporator of the heat pump air conditioning system is generally composed of multiple flow paths, and the distribution characteristics of the refrigerant flow in each flow path have a great influence on the performance and comfort of the air conditioning system. Appropriate flow path arrangement can make full use of the latent heat of the refrigerant and improve the cooling and heating performance; poor flow path arrangement will cause uneven temperature distribution of each flow path, which may cause the branch with a large refrigerant flow rate to fail to completely evaporate , and the branch refrigerant with a small flow rate evaporates prem...
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IPC IPC(8): F25B39/02F25B49/02
CPCF25B39/02F25B49/02
Inventor 申立亮
Owner WUHAN REFRIGERATION EQUIP OF MIDEA GROUP
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