Heat pump heating system, control method and heat pump water heater

A technology of a heating system and a control method, which is applied in the field of heat pump heating systems and heat pump water heaters, can solve problems such as poor work reliability, and achieve the effects of improving reliability, improving heating capacity and energy efficiency, and improving work reliability

Inactive Publication Date: 2016-01-20
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This kind of heat pump water heater with supplementary air enthalpy branch can effectively improve the heating capacity and energy efficiency of the unit under low temperature conditions. poor reliability

Method used

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  • Heat pump heating system, control method and heat pump water heater
  • Heat pump heating system, control method and heat pump water heater
  • Heat pump heating system, control method and heat pump water heater

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Embodiment Construction

[0026] The present invention will be described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. The aspects so defined can be combined with any other aspect or aspects, unless it is clearly indicated that they cannot be combined. In particular, any feature considered to be preferred or advantageous may be combined with one or more other features considered to be preferred or advantageous.

[0027] The terms "first" and "second" appearing in the present invention are only for convenience of description, to distinguish different components with the same name, and do not indicate a sequence or a primary-secondary relationship.

[0028] The present invention first proposes a heat pump heating system, which can absorb heat from a low-temperature heat source and convert it into high-temperature heat by compressing it for use at the user end. Such as figure 2 with image 3 As shown, this type of heat pump heating system inc...

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Abstract

The invention relates to a heat pump heating system, a control method and a heat pump water heater. The heat pump heating system comprises a main loop (1), an air supplementing enthalpy increasing branch (2) and a liquid spraying branch (3). The main loop (1) comprises a compressor (11), a condenser (12), a first throttling component (13) and an evaporator (14) which are sequentially connected in the refrigerant flowing direction. One end of the air supplementing enthalpy increasing branch (2) and one end of the liquid spraying branch (3) are both connected to the part, between the condenser (12) and first throttling component (13), of the main loop (1). The other end of the air supplementing enthalpy increasing branch (2) and the other end of the liquid spraying branch (3) are both connected with an air supplementing port of the compressor (11) to supplement gas-phase and liquid-phase refrigerant to the compressor (11). According to the heat pump heating system, the reliability of the system during low-temperature running can be improved.

Description

Technical field [0001] The invention relates to the technical field of heat pumps, in particular to a heat pump heating system, a control method and a heat pump water heater. Background technique [0002] A heat pump water heater is a device that heats the water on the user side by absorbing heat from a low-temperature heat source and converting it into high-temperature heat by compressing it. Such as figure 1 As shown, the main circulation circuit of a general heat pump water heater includes a compressor 1a, a condenser 2a, a first expansion valve 5a, and an evaporator 6a. The condenser 2a is connected to the user side, and the evaporator 6a is connected to an external low-temperature heat source. Circulate in the main circulation loop. During operation, the liquid-phase refrigerant flowing through the evaporator 6a exchanges heat with the outside through the temperature difference between the inside and the outside. The liquid-phase refrigerant absorbs heat during the evaporat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B30/02F24H4/02
Inventor 杜嘉伟张勇袁明征杨文军
Owner GREE ELECTRIC APPLIANCES INC
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