Ground source heat pump heat exchanger heat-transfer performance test device and its measuring and controlling method
A technology for testing device and heat transfer performance, which is used in measurement devices, testing of machine/structural components, heat pumps, etc. It can solve the problem that the cooling and heating capacity cannot be achieved, the heat dissipation and heat extraction cannot be simulated at the same time, and it is difficult to ensure the accuracy of the measurement. and other problems, to achieve the effect of saving hard disk space, convenient capacity adjustment, and automatic monitoring.
Active Publication Date: 2010-01-06
SHANGHAI GENERAL FUSHI REFRIGERATION EQUIP
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Problems solved by technology
[0003] However, at present in China, there are few equipments that can test the heat transfer performance of ground source heat exchangers, and there are still the following deficiencies: the two working conditions of heat dissipation and heat extraction cannot be simulated at the same time; the cooling and heating capacity cannot be realized Convenient adjustment of size; the developed devices have not fully automated the measurement and control process, data storage, and data analysis, so it brings inconvenience to the measurement and it is difficult to ensure the accuracy of the measurement, which may bring errors to the engineering design
Method used
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[0043] Such as figure 1 As shown, the heat transfer performance testing device of the ground source heat pump heat exchanger of the present invention includes an electric heating and heat pump device and a data acquisition device. Electric heating and heat pump devices include circulating water pumps, electric heaters, scroll compressors, inverter compressors, plate heat exchangers, heat exchangers I, heat exchangers II, air-cooled condensers, electromagnetic expansion valves, fans, frequency converters j, thyristor i and some solid state relays. The frequency converter is connected with the circulating water pump. The electric heater includes a front heater e and a rear heater b. The front heater includes two front heaters of 2KW and 4KW, and the rear heater is 0-12KW. The two front heaters are connected with solid state The relay, the afterheater are connected with the thyristor. The data acquisition device includes 6 temperature sensors PT100 temperature sensors, 2 press...
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The invention discloses a heat transfer performance test device for a heat exchanger of a geothermal pump and monitoring method thereof, especially a heat transfer performance test device for the heat exchanger of the geothermal pump and monitoring software system relating to HVAC (heating ventilation and air conditioning) technical field. The device comprises pipe system and circuit thereof; the electric heating and heat pump device comprises a recycling water pump, a electric heater, a vortex compressor, a frequency conversion compressor, a plate heat exchanger, an air-cooled condenser, a fan, a frequency converter flow control system, a SCR (silicon controlled rectifier) regulating system and various contactors, relay control elements; the data collecting device comprises 6 temperature sensors, 2 pressure sensors, 2 flow sensors, a temperature collecting module, a pressure flow collecting module, a digital amount output module and a analog amount output module. The invention also discloses the monitoring software system of the heat transfer performance test device for a heat exchanger of a geothermal pump developed according to LabVIEW programming language.
Description
technical field [0001] The invention relates to a heat transfer performance testing device of a ground source heat pump heat exchanger in the technical field of HVAC engineering and a measurement and control software system thereof. Background technique [0002] The use of ground source heat pumps that use surface soil or water as a cold / heat source to provide heating and cooling for buildings has become a technical hotspot in building energy conservation at home and abroad in recent years. The heat transfer performance and operational reliability of ground source heat exchangers are the key to the success of this energy-saving technology. Since the geological composition, hydrological characteristics, physical characteristics and other parameters of the surface are different, the corresponding heat transfer performance will change accordingly, so the heat transfer performance of ground source heat exchangers buried in different regions will be different. Engaged in the des...
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IPC IPC(8): G01M19/00F25B30/06G01M99/00
Inventor 陈九法徐催沈炜华郑红旗郭彬贾彩英
Owner SHANGHAI GENERAL FUSHI REFRIGERATION EQUIP