Ground source heat pump-based soil thermophysical property tester and testing vehicle

A ground source heat pump and soil heat technology, applied in the field of testers, can solve the problems of inability to measure in winter conditions, performance degradation of air-cooled heat pumps, freezing damage to equipment and pipelines, etc. The effect of easy transportation and handling

Inactive Publication Date: 2012-07-11
北京华清新源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the outdoor temperature is lower than 10°C, the performance of the air-cooled heat pump drops significantly or even fails to work

Method used

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  • Ground source heat pump-based soil thermophysical property tester and testing vehicle
  • Ground source heat pump-based soil thermophysical property tester and testing vehicle
  • Ground source heat pump-based soil thermophysical property tester and testing vehicle

Examples

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Embodiment Construction

[0035] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0036] Such as figure 1 As shown, a ground-source heat pump-based soil thermal performance tester includes a frequency-variable heat pump unit 1, which consists of a condenser 101, a frequency-variable compressor 102, an evaporator 103, and a throttling element. The throttling element is an expansion valve 104, and the hot water outlet end of the condenser 101 is sequentially connected to the first variable frequency water pump 2, the first temperature sensor 3, the first electromagnetic flowmeter 4, and the first buried water pump through pipelines. pipe 5 and the second temperature sensor 6, and return to the cold water inlet port of the condenser 101 to form a circulating first closed loop, and the cold water out...

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PUM

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Abstract

The invention relates to a ground source heat pump-based soil thermophysical property tester and a testing vehicle. The tester comprises a variable-frequency heat pump unit, a first closed loop and a second closed loop; a condenser, a variable-frequency compressor, an evaporator and a throttling element are sequentially connected through tubes to form the variable-frequency heat pump unit; the hot water outlet end of the condenser is sequentially connected with a first variable-frequency water pump, a first temperature sensor, a first electromagnetic flowmeter, a first buried tube, a second temperature sensor and the cold water inlet end of the condenser through tubes, so that the first closed loop is formed; and the cold water outlet end of the evaporator is sequentially connected with a second variable-frequency water pump, a third temperature sensor, a second electromagnetic flowmeter, a second buried tube, a fourth temperature sensor and the hot water inlet end of the evaporator through tubes, so that the second closed loop is formed. The tester overcomes the limitation of the conventional testing method, testing is not affected by outdoor temperature, the equipment number is reduced, the principle is simple, the structure is compact, and the tester is easy to operate.

Description

technical field [0001] The invention relates to a tester for testing the heat transfer performance and soil thermal performance of an underground pipe heat exchanger of a ground source heat pump system, and a test vehicle. Background technique [0002] As a green, energy-saving and environmentally friendly system technology, the ground source heat pump system is more and more widely used in cold and heat source systems. However, due to the lack of shallow geological data, the research on underground pipe heat exchangers has always been a Difficulties of source heat pump technology. However, the buried tube heat exchanger is the core and application basis of the ground source heat pump system, so the testing and research of the buried tube heat exchanger is very important. The heat transfer performance of different forms of the buried tube heat exchanger and the soil It can provide guidance and data support for the engineering simulation and engineering design of the ground ...

Claims

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Application Information

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IPC IPC(8): G01N25/20B60P3/00
Inventor 陈燕民邹元霖张文秀王磊
Owner 北京华清新源科技有限公司
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