A dual temperature heat pump air conditioning system, control method, intermediate heat exchanger and application
An intermediate heat exchanger and heat pump air-conditioning technology, which is applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of single equipment function, unable to adjust the load capacity of two evaporators, etc., to achieve powerful functions and wide application Scenarios to achieve the effect of capacity adjustment
Active Publication Date: 2021-11-30
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0005] (1) The existing technology cannot realize the dual-function operation of refrigeration and heating with dual evaporation temperatures in one system
[0006] (2) The existing technology cannot adjust the capacity for the load of the two evaporators
Cause the function of prior art equipment to be single
Method used
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[0038] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0039] Aiming at the problems existing in the prior art, the present invention provides a dual-temperature heat pump air-conditioning system and a control method. The present invention will be described in detail below with reference to the accompanying drawings.
[0040] Such as figure 1 As shown, the embodiment of the present invention also provides a dual-temperature heat pump air-conditioning system, including: a compressor 1, a first heat exchanger 2, a second heat exchanger 3, a third heat exchanger 4, and an intermediate heat exchanger 5 , the first electronic expansion valve 6 , the second electronic expansion valv...
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The invention belongs to the technical field of air-conditioning control, and discloses a dual-temperature heat pump air-conditioning system, a control method, an intermediate heat exchanger and its application. It adopts a double-suction and single-row compressor unit ring system to perform different medium and low temperature evaporation temperatures under refrigeration conditions. Control, and adjust the load on the medium and low temperature side through the intermediate heat exchanger; under the heating condition, the dual evaporation temperature heating control is carried out at the same time. The invention realizes the functions of cooling and heating with dual evaporation temperatures in a single-unit system, and can meet the requirements of independent control of temperature and humidity in cooling working conditions and heating with dual heat sources. At the same time, the intermediate heat exchanger is used to realize capacity adjustment and improve the performance under different working conditions. Compared with the prior art, the present invention only realizes the function of refrigeration with double evaporation temperatures. It cannot realize the heating working condition and the function of heating double evaporation temperature, and it does not have the ability to adjust the capacity between the medium and low evaporation temperatures. However, the present invention has wider application scenarios and superior system functions.
Description
technical field [0001] The invention belongs to the technical field of air-conditioning control, and in particular relates to a dual-temperature heat pump air-conditioning system, a control method, an intermediate heat exchanger and its application. Background technique [0002] At present, with the intensification of environmental pollution and the depletion of energy sources, countries all over the world have strict requirements for building energy conservation year by year, and the energy-saving effect of heat pump air-conditioning equipment is very important. At present, manufacturers in the field of heat pump air conditioners are gradually introducing high-efficiency and energy-saving heat pump air-conditioning equipment, and many high-efficiency and energy-saving technical means have also appeared one after another. Such as (temperature and humidity independent control technology and low-temperature supplementary air enthalpy increase technology) to achieve the goal of...
Claims
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IPC IPC(8): F25B13/00F25B41/20F25B41/31F25B49/02F25B39/00
CPCF25B13/00F25B39/00F25B49/022F25B2600/2513
Inventor 柯彬彬黄昌成荆莹
Owner GREE ELECTRIC APPLIANCES INC