Solar central heat collecting hot water system with non-electric auxiliary hot water source

Abstract

The invention discloses a solar central heat collecting hot water system with a non-electric auxiliary hot water source. A central hot water system performing heating through a non-electric heating medium is adopted as a non-electric auxiliary hot water source system. The solar central heat collecting hot water system comprise a solar heat collector plate set, a circulation water pump, a displacement heat exchanger, an expansion tank, a temperature control valve and a temperature control switch controller. By means of control of the temperature control valve, the system in which the solar hot water system serves as the main part, the non-electric heating medium heating central hot water system serves as an auxiliary part, when areas are not enough or sunlight is lacked for arranging heat collectors in the solar hot water system of a large building or a building group, the auxiliary heating running cost can be reduced, the supply quality and the guarantee rate of the solar hot water system can be improved, and other central hot water supply systems are used for assisting central solar water heating in cooperative water supply is achieved. The solar central heat collecting hot water system is particularly suitable for the solar hot water system and various heat pump and boiler hot water systems, and hot water heating through high-quality electric energy is avoided.

Description

technical field [0001] The invention relates to a solar heat collecting system, in particular to a solar concentrated heat collecting hot water system with a non-electric auxiliary hot water source. technical background [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-conditioni...

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Problems solved by technology

The use of other solar thermal water heating syste

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