Solar energy and air source heat pump joint heating and defrosting system

A solar energy and heat collection technology, applied in the field of heat pumps, can solve problems such as indoor temperature reduction, and achieve the effects of reducing power consumption, avoiding indoor temperature reduction, reducing power consumption and defrosting time

Pending Publication Date: 2018-11-02
TIANJIN UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a combined heating and defrosting system of solar energy and air source heat pump. consumption; this system can also overcome the shortcomings of the traditional air source heat pump defrosting method, use solar energy to defrost, and take into account the heat supply to the room during defrosting, thus solving the problem of indoor temperature drop

Method used

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  • Solar energy and air source heat pump joint heating and defrosting system

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 As shown, a combined heating and defrosting system of solar energy and air source heat pump, including:

[0024] The solar heat storage tank 7, the heat collection outlet end of the solar heat storage tank 7 is connected to the heat collection inlet end of the circulating water pump 9, the solar heat collection plate 8 and the solar heat storage tank 7 successively through the heat collection circulation pipeline, The first temperature sensor 10 for detecting the real-time water temperature in the solar thermal storage tank is installed on the described solar thermal storage tank 7, and the solar thermal storage tank 7 is installed in the described solar thermal storage tank 7. Refrigerant coil 7-1;

[0025] The indoor side heat exchanger 5, the refrigerant coil 5-1 of the indoor side heat exchanger 5 is inst...

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Abstract

The invention discloses a solar energy and air source heat pump joint heating and defrosting system which comprises an outdoor side heat exchanger, a four-way reversing valve, a gas-liquid separator,a compressor, an indoor side heat exchanger, an expansion valve, a solar heat storage water tank, a solar heat collection plate, a circulating water pump, a temperature sensor, a circuit switch, an electric defrosting heating pipe and a solenoid valve. The solar energy and air source heat pump joint heating and defrosting system has the advantages that (1) solar energy is sufficiently utilized, and consumption of electric energy can be lowered effectively; (2) the heating system can be switched among three operating modes, and the energy is saved to the largest limit under the situation that the demand for water heating by winter heating is meet; (3) heat is supplied to the indoor space during defrosting, and the problems of indoor temperature decreasing and indoor comfort lowering which are caused by reverse-cycle defrosting are avoided; and (4) defrosting is conducted through the energy stored by the solar energy, the wasted work of the compressor and the defrosting time are reduced,and the energy-saving effect is better.

Description

technical field [0001] The invention relates to the technical field of heat pumps, in particular to a combined heating and defrosting system of solar energy and air source heat pumps. Background technique [0002] With the increasing shortage of conventional energy and the serious pollution of the environment, the development and utilization of new energy has been paid more and more attention. Solar energy has a wide range of distribution, is safe and environmentally friendly, and is an inexhaustible renewable energy source. my country is rich in solar energy resources, and the areas with annual sunshine time exceeding 2200h account for about 2 / 3 of the total area of ​​the country, which has the economic value of utilizing solar energy. The annual average total solar radiation is 5.86GJ / m 2 , with good conditions for utilizing solar energy. The solar water heating system is widely used in various places because of its convenient and economical way of providing hot water f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D11/02F25B47/00
CPCF24D11/0221F24D2200/123F24D2200/14F25B47/00Y02B10/70Y02B30/12
Inventor 马洪亭李琛赖俊文杨帆李子豪
Owner TIANJIN UNIV
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