Centralized and indirect solar water heating system adopting non-electric auxiliary heat source

Abstract

The invention discloses a centralized and indirect solar water heating system adopting a non-electric auxiliary heat source. The centralized and indirect solar water heating system comprises a centralized solar hot water supply system and a non-electric auxiliary heat source system, wherein the centralized solar hot water supply system comprises a solar heat collector plate group, a heat collecting system circulating water pump, a displacement heat exchanger, a heat collecting system expansion tank, a hot-water system circulating water pump and a hot-water system expansion tank; the displacement heat exchanger is a double-coil displacement heat exchanger. The heat-collecting medium water of the centralized solar hot water supply system is introduced to a group of coil, and the hot water of the non-electric auxiliary heat source system is introduced to the other group of coil. The hot water of the non-electric auxiliary heat source system takes a heat hump, a boiler room or municipal hot water as a heat source, so that the defect that the area is insufficient when the solar water heating system of a huge building or a building group is provided with the heat collector is overcome, or the operating cost of auxiliary heating is reduced when sunlight is lacked; the relevant national energy conservation policy is met, and the supply quality and the assurance rate of the solar water heating system are increased.

Description

technical field [0001] The invention relates to a solar heat collection system, in particular to a solar concentrated indirect hot water system using a non-electric auxiliary heat source. Background technique [0002] The solar hot water system is the most economical domestic hot water system, but its function is affected by the intensity of solar radiation and the arrangement of collectors, so there must be a corresponding auxiliary heating system. [0003] As a high-quality energy source, electric energy should be limited to be directly used as heat energy in heating and domestic hot water supply, which has been clearly stated in the relevant national energy-saving regulations. Especially in the design of solar centralized hot water system, auxiliary electric heating should not be used. [0004] In high-rise residential buildings, the number of households is large, the population density is high, coupled with the influence of architectural shape, air-conditioning equipmen...

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Problems solved by technology

[0004] In high-rise residential buildings, the number of households is large, the population density is high, coupled with the influence of architectural shape, air-conditioning equipment, elevator machine room, water tank room, pipeline occupation, etc., the effective arrangement of the roof of the solar collector area cannot meet the needs of domestic hot water preparation. need

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