Direct-expansion solar heat pump and sewage source heat pump coupling heat supply system

A technology of solar heat pump and sewage source heat pump, applied in hot water central heating system, heating system, renewable energy integration, etc., can solve problems such as instability and intermittent solar resources, and achieve the effect of improving system performance

Active Publication Date: 2017-04-26
大连葆光节能空调有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, to solve the problem of intermittency and instability of solar energy resources, how to develop high-efficiency solar heat collection and thermal storage technology coupled with sewage source heat pump has become a bottleneck for popularization and application

Method used

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  • Direct-expansion solar heat pump and sewage source heat pump coupling heat supply system

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specific Embodiment approach

[0019] Such as figure 1 As shown, the refrigerant absorbs solar energy through the solar heat collector (9), and enters the phase change heat storage device (12), compressor (13), heat storage tank (7), and electronic expansion valve (8) in sequence, completing a The closed circuit finally stores the solar energy in the heat storage tank (7). The sewage in the main sewage canal (1) is pumped into the automatic decontamination device (3) by the sewage pump (2), and large-scale pollutants are removed; the filtered sewage enters the sewage heat exchanger (4) to exchange heat with the intermediate water, After the heat exchange, the sewage is discharged to the downstream of the main sewage canal (1) through the sewage return pipe (5). Driven by the intermediate water circulation pump (6), the intermediate water enters the sewage heat exchanger (4) to extract the heat in the sewage, and then is further heated through the heat storage tank (7), and then enters the sewage source hea...

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Abstract

The invention discloses a direct-expansion solar heat pump and sewage source heat pump coupling heat supply system. The direct-expansion solar heat pump and sewage source heat pump coupling heat supply system is characterized in that a direct-expansion solar heat pump system body enables the evaporation temperature of refrigerants to be maintained within a certain range by arranging a phase change heat storage device, and accordingly the influence of the change of solar radiation intensity on the system stability is greatly reduced; a heat storage water tank stores solar energy and preheats intermediary water, so that heat produced by the direct-expansion solar heat pump system body is effectively transmitted to a heat consumer, and effective coupling of solar heat collection, the heat storage technology and a sewage source heat pump is completed. The direct-expansion solar heat pump and sewage source heat pump coupling heat supply system has the benefits and effects that the problems of intermittency and unstability of solar energy resources are effectively solved, the effect that the system can supply energy is ensured, the system performance is improved substantially, and the system is efficient and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of energy utilization, and relates to a heat supply system coupled with a direct expansion solar heat pump and a sewage source heat pump. Background technique [0002] The use of cold and heat sources of sewage can alleviate the current situation of energy shortage. It has good energy-saving effects, environmental protection benefits and economic benefits. It will save increasingly scarce fresh water resources, open up new fields for energy utilization, and provide comprehensive and comprehensive utilization of water resources. A new train of thought. Solar energy is inexhaustible and clean renewable energy. my country has a vast territory and abundant solar energy resources. Solar radiation is dispersive. The collector is a device that collects solar energy and converts it into heat energy. The performance of the collector directly affects the quality of the collected solar energy. At the same time, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D3/00F24D3/18F24D11/02F25B27/00F25B27/02F25B41/06F25B49/02F25B41/31
CPCF24D3/005F24D3/18F24D11/0221F24D11/025F25B27/005F25B27/02F25B49/02F25B41/31Y02B10/70Y02A30/274Y02B30/70
Inventor 姚伟君毕海洋
Owner 大连葆光节能空调有限公司
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