Straight-expansion type solar energy heat pump based solar energy architecture integrated energy-saving hot-water system

Abstract

An integrated energy-saving water heating system of solar architecture is based on a direct-expansion solar heat pump in the technical field of energy conservation. An outlet of a solar heat collector of the invention is connected with an air suction port of an inverter compressor, an air outlet of the compressor is connected with the air inlet of a double-pipe heat exchanger, an outlet of the double-pipe heat exchanger is connected with an inlet of a thermostatic expansion valve, an inlet of the thermostatic expansion valve is connected with the outlet of the solar heat collector, and then a closed circulation of a coolant-side system is finished. A water circulation inlet of a hot-water storage tank is connected with a water pump, an outlet of the water pump is connected with an inlet of the double-pipe heat exchanger, a water outlet of the double-pipe heat exchanger is connected with a water circulation inlet of the hot-water storage tank, and then the closed circulation of a water-side system is finished. The two circulations are realized through controlling a control display circuit. The integrated energy-saving water heating system of solar architecture employs glass cover plates, bottom foaming material for heat preservation and the planar heat collector, surface of which is painted with Ni-Cr selective absorption coatings, and has the advantages of low cost, high system performance, wide adapting areas, greenness and non-pollution.

Description

technical field [0001] The invention relates to a hot water system in the technical field of solar energy, and is a building-integrated solar energy-saving hot water system based on a direct expansion solar heat pump. Background technique [0002] Solar energy is a huge, non-polluting energy source. It is the energy produced by the continuous nuclear fusion reaction process inside the sun. It is both a primary energy source and a renewable energy source. The wind energy, water energy, ocean temperature difference energy, wave energy, biomass energy and part of tidal energy on the earth all come from the sun; even the fossil fuels on the earth (such as coal, oil, natural gas, etc.) are fundamentally ancient. stored solar energy. Other forms of energy (except geothermal energy resources) ultimately also come from the sun, so it can be said that it is the source of energy for human survival. my country's solar energy resources are very rich, mainly concentrated in Tibet, Qing...

AI Technical Summary

Problems solved by technology

Its shortcoming is that the structure is relatively complex, and it is not easy to maintain daily. Since the condenser is arranged in the hot water storage tank, the connecting pipe is long, the system charging volume is large, and it is prone to leakage, which limits its popularization and application and mass production. In addition, the key component of the system - the heat collector is difficult to integrate with the building structure, and its application in the building is bound to be restricted

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