Solar phase change heat storage heating and hot water supply system

Abstract

The invention discloses a solar phase change heat storage heating and hot water supply system. The system mainly comprises a solar thermal collector (1), a supplementary heat source (2), a solar circulating pump (4), a phase change heat storage box (5), a plate-type heat exchanger (6), a heating circulating pump (9) and a heating end (10) which are connected through water pipes and are regulated through arranging a valve, wherein the solar thermal collector is connected with the supplementary heat source in series or in parallel; phase change materials within 0-100 DEG C are adopted by the phase change heat storage box according to requirements; when the system is just started, the solar thermal collector directly exchanges heat with heating return water through the plate-type heat exchanger; when residual heat exists, the residual heat is firstly stored in the phase change heat storage box; and when solar radiation is not enough, the residual heat exchanges heat with the heating return water. With the adoption of the solar phase change heat storage heating and hot water supply system, a manner of combining various pipelines and various valves of the solar thermal collector, and the characteristics of large heat storing amount of the phase change heat storage material and stable heat storage temperature are utilized, so that the defect that the solar radiation is not stable is solved, the supplementary heat source starting time is shortened, the energy is saved, and the environment is protected.

Description

technical field [0001] The invention relates to solar heating technology, in particular to a solar energy phase change thermal storage heating and hot water supply system. Background technique [0002] As a renewable and clean energy, solar energy has been widely concerned by people. With the continuous deterioration of the environment, a low-carbon and green living environment has become a long-term goal of global sustainable development. According to the needs of the living environment, building heating is a high-energy-consuming industry that must be faced in many cold regions. A large amount of energy consumption has led to an increase in energy use year by year. From the initial coal heating to the gas and heat pump heating in recent years, all of them are completed under the premise of consuming a large amount of basic energy. Therefore, seeking a new heating method centered on energy conservation and environmental protection, and replacing traditional energy with cle...

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Problems solved by technology

In addition, CN 101832590 A "solar heating system and its heating a

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