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Air source heat pump unit

An air source heat pump and unit technology, applied in space heating and ventilation, space heating and ventilation details, household heating and other directions, can solve problems such as high cost and occupy space, and achieve the effect of reducing production costs and reducing occupation.

Active Publication Date: 2020-04-17
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention aims at the problem of high cost and occupied space in the prior art that the air source heat pump unit uses a high-pressure liquid receiver to store the refrigerant

Method used

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0036] It should be noted that, in the description of the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate directions or positions The terms of the relationship are based on the orientation or positional relationship shown in the drawings, which are for convenience of description only, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be interpreted as Limitations on the Invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

[0037] The present...

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Abstract

The invention discloses an air source heat pump unit. The air source heat pump unit comprises an indoor unit, an outdoor unit, a refrigerant circulation loop, a refrigerant bypass unloading branch anda controller, wherein there is a volume difference between the indoor unit and the outdoor unit; the refrigerant circulation loop can make a refrigerant circulate between a compressor, an outdoor heat exchanger, an indoor heat exchanger and a four-way valve; the refrigerant bypass unloading branch is connected between the outdoor heat exchanger and a gas-liquid separator, and can store the excessrefrigerant in the outdoor heat exchanger into the gas-liquid separator when the volume of the outdoor unit is smaller than the volume of the indoor unit and the units conduct refrigerating; or the refrigerant bypass unloading branch is connected between the indoor heat exchanger and the gas-liquid separator, and can transfer the excess refrigerant in the indoor heat exchanger to the gas-liquid separator when the volume of the outdoor unit is larger than the volume of the indoor unit and the units conduct heating; and the controller is arranged to be at least capable of controlling the on-offstate of the refrigerant bypass unloading branch according to the subcooling degree value. The air source heat pump unit can solve the problem that an air source heat pump unit in the prior art is high in cost.

Description

technical field [0001] The invention belongs to the technical field of air conditioning equipment, and in particular relates to an improvement of the structure of an air source heat pump unit. Background technique [0002] Air source heat pump units usually use water modules as indoor units. Because water module heat exchangers mostly use plate heat exchangers and shell-and-tube heat exchangers, compared with finned tube heat exchangers, the inner volume of the heat exchangers is smaller. Small, so that the refrigeration process and the heating process require a different amount of refrigerant circulation. In the existing structure, there is a corresponding high-pressure accumulator to store excess refrigerant, but adding a high-pressure accumulator not only increases the cost but also increases the high pressure. The liquid reservoir takes up a lot of space. If the size of the whole machine is fixed, the design space of other parts will become smaller and the design difficu...

Claims

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Application Information

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IPC IPC(8): F24F5/00F24F11/64F24F11/65F24F11/84F24F13/30F24F140/12F24F140/20
CPCF24F5/0003F24F13/30F24F11/64F24F11/65F24F11/84F24F2140/12F24F2140/20
Inventor 贾庆磊张驰梁爱云
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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