Solar coupled air source heat pump complementary heating system and control method

Abstract

The invention discloses a solar coupled air source heat pump complementary heating system and a control method. The heating system is composed of a solar heat collection system, an air source heat pump system, a heat storage water tank and end equipment, wherein the heat storage water tank is connected between the solar heat collection system and the air source heat pump system; the solar heat collection system involves a solar heat collector connected to the heat storage water tank through a pipeline, a temperature probe T1 is arranged on the pipeline, a temperature probe T2 and a temperatureprobe T3 are arranged on the upper part and the lower part of the heat storage water tank, a water outlet of the heat storage water tank is connected with a solar-side circulation water pump throughthe lower circulation pipe section, a temperature probe T6 is arranged at the water inlet of the circulation water pump, the upper circulation pipe section and the lower circulation pipe section of the heat collection system are shortly connected through a water pipe, and electric two-way valves are arranged on an upper circulation pipeline, a lower circulation pipeline and a short connection pipeline correspondingly. The solar coupled air source heat pump complementary heating system solves the problem that an existing solar energy and air energy heating technology is used, so that overheating and undercooling of the cycle side of the solar heat collection are considered to appear.

Description

technical field [0001] The invention relates to the technical field of heating, in particular to a solar energy coupled air source heat pump complementary heating system and a control method. Background technique [0002] In the western Sichuan region of my country, the altitude is mostly between 1000 and 4500m, and the climate is mainly severe cold and cold. It is a typical alpine region, and heating is an urgent problem to be solved locally. This type of area is also rich in solar energy resources, and the sunshine time is relatively long. If solar energy is used directly to heat buildings, it will be difficult to guarantee the stability of the heating system due to the intermittent nature of solar energy itself. Therefore, in actual projects using solar heating, a set of auxiliary heat sources is often designed for the system, of which the complementary heating system of air source heat pumps assisting solar heating is the main one. The system has the characteristics of ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a solar energy coupled air source heat pump complementary heating system and control method, to solve the problem of overheating and overcoolin

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