Heat pump system
A heat pump system and heat technology, used in heat pumps, lighting and heating equipment, fluid circulation arrangements, etc., can solve problems such as low energy efficiency, and achieve the effect of improving energy efficiency and increasing the ability to transport heat
Active Publication Date: 2020-05-08
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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Problems solved by technology
[0005] In order to solve the technical problem of low energy efficiency when the inlet water temperature is high in the existing heat pump system, the present invention provides a heat pump hot water system, which reduces the temperature of the refrigerant before evaporation and increases the energy efficiency of the refrigerant when it evaporates. Absorbed heat, improving system energy efficiency
Method used
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Embodiment 1
[0041] Such as figure 2 As shown, the heat pump system of this embodiment includes a compressor 11, a first heat exchanger 12, a first throttling device 13, a second heat exchanger 14 and a gas-liquid separation device 15, and the compressor 11, the first A heat exchanger 12 , a first throttling device 13 , a second heat exchanger 14 and a gas-liquid separation device 15 form a closed-loop refrigerant main circuit. The heat pump system also includes a first auxiliary condensing circuit 16, its inlet is connected between the first heat exchanger 12 and the first throttling device 13, its outlet is connected with the gas-liquid separation device 15, and the first auxiliary condensing circuit 16 is used for The heat of the refrigerant in the main refrigerant circuit is absorbed, and the temperature of the refrigerant entering the second heat exchanger 14 before evaporating is lowered, so as to increase the heat that the refrigerant can absorb when evaporating.
[0042] The refr...
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The invention discloses a heat pump system. The heat pump system comprises a refrigerant main loop, the refrigerant main loop comprises a compressor, a first heat exchanger, a first throttling device,a second heat exchanger and a gas-liquid separation device, wherein the first heat exchanger is used for condensing refrigerant; the first throttling device is used for throttling and depressurizingthe refrigerant; the second heat exchanger is used for evaporating the refrigerant; the gas-liquid separation device is arranged at a gas inlet end of the compressor and is used for carrying out gas-liquid separation on the refrigerant before entering the compressor; and the heat pump system further comprises a first auxiliary condensation loop, an inlet of the first auxiliary condensation loop isconnected between the first heat exchanger and the first throttling device, and an outlet of the first auxiliary condensation loop is connected with the gas-liquid separation device. According to theheat pump hot water system, the temperature of the refrigerant in the main loop before evaporation can be absorbed by arranging the first auxiliary condensation loop, heat which can be absorbed by the refrigerant during evaporation is increased, and the energy efficiency of the system is improved. After absorbing the heat in the main loop, the refrigerant in the first auxiliary condensation loopsupplements gaseous refrigerant for the compressor, and the heat carrying capacity of the refrigerant can be further improved.
Description
technical field [0001] The invention relates to the technical field of hot water heating equipment, in particular to a heat pump hot water system. Background technique [0002] The heat pump hot water system is usually used with a water tank, and the hot water of the set temperature is stored in the water tank, and then supplied to users for different purposes (bathing, heating, etc.). [0003] Since the hot water in the water tank is required to be maintained at a certain temperature, if the hot water is not used in time, the water temperature in the water tank will drop. When the water temperature is lower than the required temperature, the heat pump hot water system needs to operate in the "keep warm mode". That is to say, the water in the water tank is pumped again into the heat pump system for heating to produce high-temperature hot water that meets the requirements. [0004] Because the inlet water temperature in the heat preservation mode is usually very high (genera...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F25B30/02F25B41/04F25B43/00F25B49/02F25B41/20
CPCF25B30/02F25B43/00F25B49/02F25B2500/28F25B41/40F25B41/20
Inventor 周敏邓玉平夏兴祥赵东方
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST