Bidirectional heat pump solar energy heating system

Abstract

The invention discloses a bidirectional heat pump solar energy heating system with solar heat collection and earth source heat pump combined heating. The system comprises a solar heat collection cycle, two paralleled direct heating heat exchange cycles, two paralleled indirect heating heat exchange cycles, a bidirectional fork heat pump cycle (an earth source heat pump cycle and an indirect heating heat pump cycle are in reversed parallel connection), and an earth source heat exchange cycle. A heat storage water tank serves as a hinge of heat collection and exchange of the cycles. The system can not only absorb heat energy in the soil through the earth source heat pump cycle, but also absorb solar energy through the solar heat collection cycle. The heat storage water tank supplies heat to the heating heat exchange cycles in the following two modes: one mode is as follows: a direct heat exchange coil pipe in the water tank transfers heat to the heating system at a high heat storage water temperature; and the other mode is as follows: the indirect heating heat pump cycle exchanges the heat with the heating system after the grade of the stored heat energy is improved through the indirect heating heat pump cycle under the condition of a low heat storage water temperature.

Description

technical field [0001] The invention patent belongs to the design and development of building energy collection, storage and supply system equipment. It mainly involves solar heat collection, vapor compression refrigeration cycle, ground source heat pump and heating and heating equipment. Background technique [0002] In the 21st century with the rapid development of science and technology, all walks of life in society are undergoing rapid changes. This has led to a huge increase in the energy consumption of the entire society in the fields of production and life. Energy has become the most critical social and economic issue in this century, and the energy crisis is entering our life at an unexpected speed. The demand for traditional primary energy is increasing day by day, but the output is limited, so the consumption cost is getting higher and higher. People can only find hope in new ways. Both solar energy and soil-source thermal energy are good new energy sources, bu...

AI Technical Summary

Problems solved by technology

However, all kinds of new energy sources have their own weaknesses when used alone for heating. For this reason, we must seek a reasonable way to comprehensively utilize multiple energy sources, and save energy as much as possible on the basi

Images