Intense heat type outdoor unit, heat pump system and control method of intense heat type outdoor unit and heat pump system
A technology for outdoor units and outdoor heat exchangers, applied in the field of air conditioning, can solve problems such as high exhaust temperature of compressors and insufficient heating capacity, increase mass flow rate, reduce exhaust temperature, and solve excessive exhaust temperature high effect
Active Publication Date: 2016-05-18
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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Problems solved by technology
[0005] Embodiments of the present invention provide a strong heating outdoor unit, a heat pump system and a control method thereof, which can solve the problem of excessively high discharge temperature of the compressor in the heating mode of the heat pump system in a low-temperature environment in the prior art, resulting in heating The problem of insufficient ability
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[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0026] An embodiment of the present invention provides an outdoor unit, which is used in the heating mode. Refer to figure 1 As shown, the outdoor unit 10 includes: a compression module 101 , an outdoor heat exchanger 102 and a liquid injection circuit 103 .
[0027] The first end 1021 of the outdoor heat exchanger 102 is connected to the suction end 1013 of the compression module 101, the second end 1022 of the outdoor heat exchanger 102 is connected to the i...
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The invention discloses an intense heat type outdoor unit, a heat pump system and a control method of the intense heat type outdoor unit and the heat pump system, and relates to the field of air conditioners. The problem that in the prior art, when a heat pump system in the low temperature environment is in a heating mode, the exhaust temperature of a compressor is too high, and consequently the heating capability is insufficient can be solved. According to the specific scheme, the outdoor unit comprises a compression module, an outdoor heat exchanger and a liquid spraying loop. The liquid spraying loop can be opened when the temperature of the environment where the outdoor unit is located is smaller than or equal to the first threshold value and the outdoor unit is in a heating mode, throttling and pressure reducing are carried out on a refrigerant flowing into the liquid spraying loop from an indoor unit, the refrigerant subjected to throttling and pressure reducing flows into the compression module through a liquid spraying end of the compression module, and therefore the refrigerant flowing into the compression module from the liquid spraying loop is subjected to flash vaporization and heat absorption to become a gas-state refrigerant. The intense heat type outdoor unit, the heat pump system and the control method of the intense heat type outdoor unit and the heat pump system are mainly used for refrigerating and heating.
Description
technical field [0001] The invention relates to the field of air conditioning, in particular to a strong heat outdoor unit, a heat pump system and a control method thereof. Background technique [0002] A heat pump system can transfer heat energy from a low-level heat source to a high-level heat source. Usually, it first obtains low-grade heat energy from natural air, water or soil, performs work through electricity, and then provides high-grade heat energy that can be used by people. [0003] The heat pump system is capable of cooling and heating, and its heating capacity decreases as the ambient temperature of the outdoor unit decreases. When the ambient temperature of the outdoor unit is too low, on the one hand, the compression ratio of the heat pump system is relatively large, that is, the ratio of the discharge pressure to the suction pressure of the heat pump system is too large, which will reduce the volumetric efficiency of the compressor of the heat pump system. A...
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IPC IPC(8): F25B30/02F25B41/00F25B49/02F24F5/00F25B41/40
Inventor 刘敏刘立强梁爱云
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST