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Gas replenishing and enthalpy increasing heat pump system and heating control method thereof

A technology of heat pump system, supplementing air and increasing enthalpy, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as reverse injection of heat pump units, achieve the effect of improving heating capacity and energy efficiency, and avoiding reverse injection

Pending Publication Date: 2017-07-04
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem that heat pump units are prone to reverse injection in the prior art

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  • Gas replenishing and enthalpy increasing heat pump system and heating control method thereof
  • Gas replenishing and enthalpy increasing heat pump system and heating control method thereof
  • Gas replenishing and enthalpy increasing heat pump system and heating control method thereof

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0034] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or position...

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Abstract

The invention relates to the technical field of heat pump systems, in particular to a gas replenishing and enthalpy increasing heat pump system and a heating control method thereof. The gas replenishing and enthalpy increasing heat pump system comprises a compressor, an indoor heat exchanger, a flash evaporator and an outdoor heat exchanger which are connected into a heating loop. A first throttling device is arranged between the indoor heat exchanger and the flash evaporator. A second throttling device is arranged between the outdoor heat exchanger and the flash evaporator. The compressor is provided with a gas replenishing port, and the flash evaporator is provided with a gas exhaust port. The gas exhaust port of the flash evaporator communicates with the gas replenishing port of the compressor through a check valve. The gas replenishing and enthalpy increasing heat pump system further comprises a controller. The controller is connected with the first throttling device and used for adjusting the opening degree of the first throttling device. By the adoption of the heat pump system, opposed injection of the compressor is avoided, and the heating capacity and energy efficiency of the system are improved.

Description

technical field [0001] The invention relates to the technical field of heat pump systems, in particular to a heat pump system for replenishing air and increasing enthalpy and a heating control method thereof. Background technique [0002] In order to avoid excessive pressure ratio and increase the effective enthalpy of the system, the current air-conditioning units often add multiple intermediate throttles on the refrigeration cycle. Generally, a flash evaporator is added to the intermediate pipeline to make up the flashed refrigerant into the compressor for re-compression, thereby lowering the pressure ratio, replenishing air and increasing enthalpy. However, if the control is not good or the design is unreasonable, when the pressure at the inlet of the compressor injection enthalpy is higher than the pressure at the outlet of the flasher, it will lead to reverse injection, which will reduce the performance and energy efficiency of the air conditioning unit, and will not ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B13/00F25B41/04F25B41/06F25B49/02F25B41/20F25B41/30
CPCF25B13/00F25B49/02F25B2700/2103F25B2600/25F25B2313/02741F25B41/22F25B41/30
Inventor 韦汉儒李嗣平
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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