Heat exchange capability testing equipment of underground heat exchanger of ground source heat pump

Abstract

The invention discloses heat exchange capability testing equipment of an underground heat exchanger of a ground source heat pump. The heat exchange capability testing equipment of the underground heat exchanger of the ground source heat pump comprises a heat preservation water tank (internally provided with a heater), three brass ball valves, two sets of Y-type pipeline filters, a stainless steel variable gear water pump, a flow control system, two pressure gages, two temperature sensors, a temperature monitoring system, an elbow meter and a flow monitoring system. A water inlet and a water outlet are formed in the heat preservation water tank, a water circulation is formed between the heat preservation water tank and a pipeline of a tested well heat exchanger, and the testing equipment achieves heat exchange capacity testing of the tested well heat exchanger by measuring the inlet water and outlet water temperature and flow of the tested well heat exchanger in the continuous heating process. The heat exchange capability testing equipment has the advantages of being high in testing upper limit of the heat exchange capacity, stable in flow control, high in temperature testing precision, and the like, and solves the problem that an efficient heat exchanger with high heat exchange capacity can not be tested.

Description

technical field [0001] The invention relates to the development and utilization of renewable energy, in particular to a test device for the heat exchange capacity of an underground heat exchanger of a ground source heat pump. Background technique [0002] The ground source heat pump air conditioning system is the most effective technical method for building energy conservation. Its energy saving effect has been unanimously recognized by domestic and foreign experts. Compared with conventional air conditioners, ground source heat pump air conditioners can save about 50% of energy. The current ground source heat pump air-conditioning system is ideal for small buildings, but due to the low heat exchange efficiency of underground heat exchangers and large floor area, there is not enough space for large and medium-sized buildings to arrange heat exchangers. In areas with large heating needs in winter, A large number of buildings do not have the conditions to use ground source he...

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Problems solved by technology

[0005] The present invention is to avoid the deficiencies in the above-mentioned prior art, and provides a ground source heat pump underground heat exchanger heat exchange capacity testing equipment to improve the equipment Test the upper limit of heat exchange capacity and solve the problem that heat exchangers with high heat exchange capacity cannot be tested

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