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A heat pump system using evaporative cooling

An evaporative cooling and heat pump system technology, which is applied in heat pumps, household heating, air-conditioning systems, etc., can solve problems such as icing on the outer surface, deterioration of heat transfer conditions, and difficulty in water spraying of outdoor heat exchangers, achieving improved The effect of heat transfer efficiency

Active Publication Date: 2021-09-17
ZHEJIANG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The heat pump system will face problems when it operates in heating mode in winter. If the ambient temperature is close to zero, not only will it be difficult to spray water on the outdoor side heat exchanger, but also the outer surface will freeze and the thermal resistance will increase. If there is no deicing measure, the transmission Thermal conditions will continue to deteriorate until the system becomes inoperable

Method used

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  • A heat pump system using evaporative cooling
  • A heat pump system using evaporative cooling
  • A heat pump system using evaporative cooling

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] The present invention is not limited to the specific embodiments described above, and it is not intended to limit the present invention. All technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

[0025] In the specification, it can be understood that when "first" and "second" refer to components, they are only used for the purpose of distinction, and do not limit the sequence or importance of the components. Similarly, "a", "b", "c", "d", etc. in the description only represent different inlets or outlets of components, and do not represent their order.

[0026] Such as figure 1 , the present invention comprises a compressor 1, an indoor heat exchanger 2, a four-way reversing valve 3, a solenoid valve 4, a first throttle valve 5, a second throttle v...

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Abstract

The invention discloses a heat pump system using evaporative cooling. Including compressor, indoor heat exchanger, outdoor heat exchanger, first throttle valve, second throttle valve, solenoid valve, three-way regulating valve, water pump, sprayer, evaporator for concentration, crystal separator and four Through the reversing valve, the outdoor heat exchanger of the heat pump system uses evaporative cooling technology, and the outer surface of the heat exchanger is sprayed with ethylene glycol solution. When the system is running in summer, the evaporator for concentration does not work. Heat exchange with the sprayed ethylene glycol solution and outdoor air. The evaporator for concentration is responsible for cooling the ethylene glycol solution below the freezing temperature. Together with the crystallizer, the concentration of the ethylene glycol solution is increased to ensure participation in the outdoor exchange. The ethylene glycol solution exchanged by the heat exchanger does not freeze. The invention improves the heat exchange efficiency of the outdoor evaporator in winter, and the phenomenon of frosting does not occur during operation in winter.

Description

technical field [0001] The invention belongs to the technical field of heat pump air conditioners, and in particular relates to a heat pump system using evaporative cooling. Background technique [0002] With the development of science and technology, the problems of environmental protection and lack of resources have become increasingly prominent worldwide. Improving energy efficiency and reducing the consumption of fossil energy are currently hot issues. A heat pump is an energy device that obtains low-grade heat from environmental media and waste heat resources, and improves the heat grade through a suitable thermodynamic cycle for use by end users. It has high energy utilization efficiency and is an energy-saving device worthy of promotion. [0003] Chinese Patent Publication No. CN107110516A discloses a heat pump system using an evaporative cooler, which combines a condenser and a water-cooled cooling tower. When running in summer, the evaporative cooler can provide mor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F5/00F25B30/02F25B41/30F25B13/00F25B41/20
CPCF24F5/0003F25B30/02F25B13/00F25B41/30
Inventor 张绍志吴昊徐以洋陈光明
Owner ZHEJIANG UNIV
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