Heat storing type solar ground source heat pump coupling system

Abstract

The invention discloses a heat storing type solar ground source heat pump coupling system which comprises a solar thermal collector, a solar water storing tank, a temperature converting water storing tank, a heat pipe heat exchanger, a water knockout drum, a water collector, a ground heat exchanger, a heat pump unit and an indoor unit. The heat storing type solar ground source heat pump coupling system can meet the requirements for refrigerating, heating and domestic hot water supplying, a solar thermal collecting system can achieve seasonal heat storing, and the temperature converting water storing tank can achieve high-quality heating in winter and can replace an existing absorption or adsorption refrigerating device with solar hot water as driving force in the solar ground source heat pump system in summer. Heat exchanging with a falling film method is used for recycling heat of condensation, and high-efficiency refrigerating is achieved. Thus, the ground source heat pump system heat storing type solar system operates intermittently, recovery of an underground temperature field is facilitated, and therefore the heat exchanging efficiency of a buried pipe is improved and the service life of the ground source heat pump system is prolonged.

Description

technical field [0001] The invention relates to a solar ground source heat pump, in particular to a thermal storage type solar energy ground source heat pump coupling system. Background technique [0002] The "Twelfth Five-Year Plan Outline for Land and Resources" issued on May 19, 2011 pointed out that during the "Twelfth Five-Year Plan" period, energy and mineral exploration should be strengthened, resources should be conserved, new energy developed, and renewable energy technology research and development and use should be increased. . At the beginning of the 21st century, my country began the practice of ground source heat pump projects, basically increasing at a rate of 20% to 25% per year. The ratio of the heat absorbed by the underground is 2.36. Continuous long-term operation will take too much heat from the underground or dissipate too much heat to the underground, causing fluctuations in the underground temperature field, reducing the COP value of the unit, and inc...

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Problems solved by technology

[0003] In order to overcome the shortage of existing ground source heat pumps that take heat from the ground or release heat to the ground for a long time when they work alone, which will cause unbalanced underground cold and heat loads, affect the heat exchange efficiency of the ground pipe heat exchanger, and increase the energy consumption of the system, the present invention Provide a thermal storage type solar ground source heat pump coupling system, in which the solar heat collection system and the ground source heat pump system are coupled to operate, not only can realize the traditional cooling, heating and domestic hot water supply, but also can recycle in the system Condensation heat for efficient use of energy

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