Solar energy-ground source heat pump and heat supply network complementary heating device

Abstract

The invention relates to a complementary heating device, in particular to the technical field of multi-energy combined heat supply and aims at fully using advantages of solar energy and a ground source heat pump, overcoming defects of heat supply of a conventional energy heat supply network, and achieving energy conservation and emission reduction of the central heat supply in northeast severe cold regions. Complementary heat supply combining three types of energy of solar energy-the ground source heat pump and heat supply network is provided for the first time. The device is applicable to modification projects of the existing buildings. On the basis of the existing heat supply network or the ground source heat pump, energy-saving modification is achieved. The device has the advantages of fully using the advantages of the solar energy and the ground source heat pump, combining the conventional energy heat supply and renewable energy source heat supply, and achieving double values of environment protection and economy. The heat supply network is added into a solar energy-ground source heat pump system, the capacity and size of the solar energy and the ground source heat pump system are reduced, initial investment of the system is reduced, and simultaneously the stability and the reliability of the complementary heat supply system are improved.

Description

technical field [0001] The present invention relates to the technical field of multi-energy combined heating equipment, in particular to a heating device, that is, a solar-ground source heat pump and a heating network complementary heating device. Background technique [0002] In severe cold regions of Northeast China, the heating load is heavy in winter, and the heating time is relatively long. The current heating method is dominated by centralized heating with conventional energy as the main heat source. There is a common problem that the existing heating network cannot meet the heating requirements of the community. Conventional energy is a non-renewable energy source. Extensive use of conventional energy will lead to energy depletion, which does not meet the requirements of a conservation-friendly and environmentally friendly society, and a large amount of harmful gases are emitted, making the environment worse. [0003] Solar energy and soil sources are renewable energy...

AI Technical Summary

Problems solved by technology

However, solar radiant heat is intermittent and very unstable. To use solar energy, it is necessary to solve its intermittent and unreliable problems.

Ground source heat pumps store almost unlimited renewable energy in the shallow layer of the ground, but buried heat exchangers are greatly affected by soil properties. The thermal performance of the soil, energy balance, heat transfer and moisture transfer in the soil have a greater impact on heat transfer big impact

The solar-ground source heat pump system is a combined heating system that combines the characteristics of the two, but the cost of the system is too high, such as the cost of solar collectors, drilling costs, etc., and the huge area of ​​​​the collector and the laying area of ​​​​the buried pipe heat exchanger Bringing difficulties to the implementation of solar-ground source heat pump systems

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