Solar energy and heat pump combined heat supply system and method suitable for alpine region

Abstract

The invention discloses a solar energy and heat pump combined heat supply system and method suitable for an alpine region. According to the solar energy and heat pump combined heat supply system, a solar heat collector, a heat pump and a heat storage device are combined, so that the solar energy and heat pump combined heat supply system achieves stable and continuous heat supply in the alpine region, when the sun is insufficient or the temperature of external air is too low, the solar energy and heat pump combined heat supply system is overturned into equipment when not working, a heat collection pipe is protected, the heat collection pipe is prevented from being damaged by external impact, the service life of the equipment is greatly prolonged, and an arranged cleaning mechanism can be used for cleaning and maintaining the heat collection pipe, so that the situation that the solar heat collection efficiency is reduced due to dust attached to the heat collection pipe is avoided, the heat supply efficiency of the equipment is prevented from being reduced, the energy utilization rate is guaranteed, and the solar energy and heat pump combined heat supply system has the beneficial effects that heat supply is stable in connection, the service life of the equipment is long, the heat storage speed of the equipment is fast, the energy utilization rate is high, and the solar heat collector is cleaned and maintained.

Description

technical field [0001] The invention belongs to the field of heating systems, and relates to solar energy and heat pump technology, in particular to a solar energy and heat pump combined heating system and method suitable for alpine regions. Background technique [0002] The demand for heating in winter in alpine areas is prominent. However, alpine areas are often too high or inaccessible. Therefore, the energy is extremely scarce, and oil and gas transportation is extremely difficult and costly. Therefore, in order to solve the winter heating demand in the alpine region, and taking into account the energy, climate and terrain characteristics of the alpine region, it is necessary to develop an efficient, clean and stable heating system. Most of the existing clean heating systems use solar energy resources and use solar radiation for heating, but solar energy is discontinuous, unstable, and easily affected by climate and day and night environments, making it impossible to pro...

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Problems solved by technology

Most of the existing clean heating systems use solar energy resources and use solar radiation for heating, but solar energy is discontinuous, unstable, and easily affected by climate and day and night environments, making it impossible to provide stable and continuous heating

The air source heat pump uses the external ambient temperature as a source to reversely convert the temperature in the air into the indoor heating temperature. However, the extremely low temperature in the alpine region greatly affects its heating performance, making it unable to be fully effective. Heating, so a heating system that combines solar energy and air source heat pumps came into being. However, in the existing solar energy and heat pump combined heating system, the heat storage only stores the temperature of the water body that flows out of the solar energy, and the temperature limit of the water body That is 100°C, and then there is a large amount of extra temperature inside the solar collector due to the temperature limit of the water body. These extra temperatures cannot be exported through the water body, and when the sun disappears, the temperature inside the solar collector is useless. Waste, the traditional solar collector is a fixed structure, no matter whether the solar collector is working or not, the heat collecting tube is in the outside world and cannot be protected, so dust is very easy to appear, which will greatly reduce the working efficiency of the heat collecting tube or the heat collecting tube will be hit And the solar collector will cause damage, so a kind of combined solar energy and heat pump heating system suitable for alpine regions that can recover the internal temperature of the solar collector and clean and maintain the solar collector is imminent.

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