Solar hot water high-temperature heating and low-temperature recycling system

Abstract

The invention discloses a solar hot water high-temperature heating and low-temperature recycling system which comprises solar hot water heat collecting equipment, a water source heat pump, a methanol boiler, a soft water tank and a control device. The hot water outlet end of the solar hot water heat collecting device is communicated with a heat supply main pipeline through an electromagnetic valve B. The hot water outlet end of the water source heat pump is communicated with the heat supply main pipeline through an electric valve A. According to the system, low-temperature hot water of the solar hot water heat collecting equipment is effectively utilized, and the energy consumption caused when the water source heat pump is used is reduced. Meanwhile, a methanol boiler is further arranged, when the temperature of hot water provided by the solar hot water heat collection equipment is low (9 DEG C or below), electric energy is consumed, the heat supply cost is relatively high and the economical efficiency is poor when only the water source heat pump is adopted, and therefore the methanol boiler with the good economical efficiency can be adopted for heat supply at the moment, and better economic benefits are obtained.

Description

technical field [0001] The invention relates to the field of solar heating, in particular to a solar hot water heating system with high temperature and low temperature recovery. Background technique [0002] Solar energy refers to the radiant energy of sunlight. Solar energy is a renewable energy source. Solar water heaters are devices that convert solar energy into heat energy and heat water from low temperature to high temperature to meet the needs of people in daily life. . Solar water heaters are divided into vacuum tube solar water heaters and flat plate solar water heaters according to their structure. Vacuum tube solar water heaters are the main ones, accounting for 95% of the domestic market share. Vacuum tube household solar water heaters are composed of heat collecting tubes, water storage tanks, brackets and other related accessories. The conversion of solar energy into heat mainly depends on the heat collecting tubes. hot water. [0003] The solar hot water he...

AI Technical Summary

Problems solved by technology

After that, the heat of the low-temperature hot water in the entire solar system will be wasted because it is not effectively utilized, and the heat loss of the entire solar hot water heating system is relatively large, and the effective utilization rate is low

[0005] In addition, the traditional solar heating system generally adopts the method of collecting heat by the solar system, storing heat in the heat preservation water tank, and supplying heat to the secondary network from the self heat preservation water tank through the circulating water pump pressurization. loss, and the volume of heat storage and heat preservation water tanks in thermal stations is generally relatively large, which increases a lot of investment costs

[0006] At the same time, in rainy weather, the low-temperature heat generated in the solar system has not been paid attention to and effectively utilized.

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