CN102095751A - Vehicle-mounted physical parameter tester of geological heat of ground source heat pump - Google Patents

Vehicle-mounted physical parameter tester of geological heat of ground source heat pump Download PDF

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Publication number
CN102095751A
CN102095751A CN 201110008854 CN201110008854A CN102095751A CN 102095751 A CN102095751 A CN 102095751A CN 201110008854 CN201110008854 CN 201110008854 CN 201110008854 A CN201110008854 A CN 201110008854A CN 102095751 A CN102095751 A CN 102095751A
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evaporator
heat
heat pump
water
attemperater
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CN 201110008854
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Chinese (zh)
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李�浩
张燕立
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Tianjin Mammoth Electromechanical Equipment Engineering Co., Ltd.
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TIANJIN MAMMOTH ELECTROMECHANICAL EQUIPMENT ENGINEERING Co Ltd
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Abstract

The invention discloses a vehicle-mounted physical parameter tester of geological heat of a ground source heat pump. The physical parameter tester comprises a heat-insulating water tank, an electrical heating tube, a circulating pump for a buried tube, a circulating pump for an evaporator, an air-cooled heat pump unit consisting of the evaporator, a compressor, a condenser, an expansion valve and a fan, and a controller. In the vehicle-mounted physical parameter tester of the geological heat of the ground source heat pump, the cold and heat source is provided by the air-cooled heat pump unit, so the whole tester has a compact structure, can be placed on a vehicle, and is very flexible and convenient to use. In addition, the cold and heat source mainly comes from air, so that other cooling and heating facilities are not needed. During testing, only a group of heat exchangers for the buried tube are needed to be buried, so that the testing cost can be greatly reduced. As the tester can be used for cooling (preparing cold water) and heating (preparing hot water), only one tester can meet the testing requirements of a thermal response method and a simulation method. Therefore, the tester is dual-purpose, and has a wide application range. In addition, the tester has high automation degree.

Description

Vehicular earth source heat pump geology thermophysical parameter tester
Technical field
The present invention relates to a kind of proving installation, particularly relate to a kind of vehicular earth source heat pump geology thermophysical parameter tester.
Background technology
The essence of ground source heat pump technology is holed at the earth with trepan exactly, in the hole, bury underground then by the PE plastics make and specialty on be called the U type pipe of ground heat exchanger, in ground heat exchanger, inject heat transferring medium afterwards, absorb heat or cold by the heat interchange between this heat transferring medium and the earth from the earth, heat transferring medium offers source pump with this heat or cold then, is used to regulate the temperature of the interior space.Heat transferring medium can be source pump during from the earth heat-obtaining heat is provided, and heat transferring medium then provides cold for source pump when the earth heat release.
The heat transferring medium that flows in the ground heat exchanger is the core of earth source heat pump engineering design from the heat-obtaining ability or the heat-sinking capability of the earth, its determining the form of ground heat exchanger in every engineering and quantity what.The geology thermophysical parameter that is mainly concerned with when calculating heat-obtaining or heat-sinking capability comprises: the calorific value of the average coefficient of heat conductivity of the earth, thermal diffusion coefficient and the earth volume etc.
Geology thermophysical parameter method of testing commonly used at present has two kinds, and 1. thermal response method is simulation 2.
Thermal response method: in the earth, bury the test ground heat exchanger underground, in ground heat exchanger, inject the heat transferring medium that has heated then, utilize earth source heat pump geology thermophysical parameter tester to gather the size of this heat transferring medium release heat and the delta data of underground temperature field, and the data that collect are carried out computational analysis by special software, thereby can draw the geology thermophysical parameter, calculate every required ground heat exchanger of engineering in view of the above quantity is installed.
Simulation: according to air-conditioning cooling, heat supply actual operating mode by one group or several groups of ground heat exchangers to the earth heat release or heat-obtaining, utilize earth source heat pump geology thermophysical parameter tester to measure the thermal discharge or the heat-obtaining amount of every group of ground heat exchanger, calculate every required ground heat exchanger of engineering thus quantity is installed.
A kind of earth source heat pump geology thermophysical parameter proving installation commonly used is at present disclosed in No. the 200410072380.6th, the Chinese invention patent application.But there is following point in this proving installation:
1, Cooling and Heat Source adopts the water cooling heat pump unit to provide, bury three groups of ground heat exchangers underground at the minimum need of test site during test, one group for test usefulness, other two groups provide Cooling and Heat Source for the water cooling heat pump unit, so not only can cause testing cost to raise, and might there be interference in other two groups of ground heat exchangers to tested ground heat exchanger.
2, because this proving installation adopts the water cooling heat pump unit, thus cause entire equipment bulky, therefore carrying inconvenience, adapted lifting transportation equipment just can be delivered to test site in addition.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of compact conformation, measuring accuracy height and multiple functional vehicular earth source heat pump geology thermophysical parameter tester.
In order to achieve the above object, vehicular earth source heat pump geology thermophysical parameter tester provided by the invention is arranged on the vehicle, and it comprises Air-Cooled Heat Pump Unit and controller that attemperater, electrothermal tube, buried effective ebullator, evaporator are formed with ebullator, by evaporator, compressor, condenser, expansion valve and fan; Wherein attemperater is used to hold the test loop water, and electrothermal tube is installed in it, and is connected with the import and export and the evaporator of test with ground heat exchanger respectively by four water pipes; Evaporator is installed in ebullator on the water pipe that is connected between attemperater and the evaporator, and buried effective ebullator then is arranged on the water pipe that is connected between attemperater and the test usefulness ground heat exchanger; Evaporator, compressor, condenser and expansion valve link to each other by the refrigerant pipeline successively, and fan is installed in the outside of condenser, and controller then is used to control the operation of total system.
Described evaporator is the coaxial sleeve tube structure, and being arranged in the medium that the pipe at center flows is refrigerant, and the medium that flows in the outer tube is a water, and attemperater is connected with the two ends of outer tube on the evaporator respectively by two water pipes.
Describedly be connected attemperater and test with being separately installed with a temperature sensor on two water pipes between the ground heat exchanger, and wherein on a water pipe flowmeter be installed also.
On arbitrary a temperature sensor is installed in described two water pipes that are connected between attemperater and the evaporator.
Described evaporator ebullator is fixed water pump frequently.
Described buried effective ebullator is a variable frequency pump.
Vehicular earth source heat pump geology thermophysical parameter tester provided by the invention has following advantage:
1, because Cooling and Heat Source is to be provided by Air-Cooled Heat Pump Unit, so whole tester compact conformation, so can be placed on the vehicle, using like this will be very flexible.In addition, the Cooling and Heat Source major part no longer needs other cold and hot facility from air, and test the time only need bury one group of ground heat exchanger underground, so can reduce testing cost significantly.
Therefore 2, because this tester both can freeze in (preparation cold water), can heat (preparation hot water) again, a tester can satisfy thermal response method and simulation test request, thus can dual-use, thereby applied widely.
3, the operation of this tester is all controlled by controller, so the automaticity height, and the temperature of heat transferring medium, flow control accuracy height, so test result is accurate.
Description of drawings
Fig. 1 is a vehicular earth source heat pump geology thermophysical parameter tester part-structure synoptic diagram provided by the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments vehicular earth source heat pump geology thermophysical parameter tester provided by the invention is elaborated.
As shown in Figure 1, vehicular earth source heat pump geology thermophysical parameter tester provided by the invention is arranged on the vehicle, and it comprises Air-Cooled Heat Pump Unit that attemperater 5, electrothermal tube 9, buried effective ebullator 6, evaporator are formed with ebullator 7, by evaporator 3, compressor 1, condenser 2, expansion valve 4 and fan 10 and not shown controller; Wherein attemperater 5 is used to hold the test loop water, and electrothermal tube 9 is installed in it, and is connected with the import and export and the evaporator 3 of test with ground heat exchanger 8 respectively by four water pipes 14,15; Evaporator is installed in ebullator 7 on the water pipe 15 that is connected between attemperater 5 and the evaporator 3, and buried effective ebullator 6 then is arranged on the water pipe 14 that is connected between attemperater 5 and the test usefulness ground heat exchanger 8; Evaporator 3, compressor 1, condenser 2 and expansion valve 4 link to each other by refrigerant pipeline 16 successively, and fan 10 is installed in the outside of condenser 2, and controller then is used to control the operation of total system.
Described evaporator 3 is the coaxial sleeve tube structure, and being arranged in the medium that the pipe at center flows is refrigerant, and the medium that flows in the outer tube is a water, and attemperater 5 is connected with the two ends of outer tube on the evaporator 3 respectively by two water pipes 15.
Describedly be connected attemperater 5 and test with being separately installed with a temperature sensor 11 on two water pipes 14 between the ground heat exchanger 8, and wherein on a water pipe 14 flowmeter 12 be installed also.
On arbitrary a temperature sensor 13 is installed in described two water pipes 15 that are connected between attemperater 5 and the evaporator 3, controller is adjusted the refrigerating capacity of Air-Cooled Heat Pump Unit by frequency converter according to the detection signal of temperature sensor 13.
Described evaporator is fixed water pump frequently with ebullator 7.
Described buried effective ebullator 6 is a variable frequency pump.
When needs utilize vehicular earth source heat pump geology thermophysical parameter tester provided by the invention to test the geology thermophysical parameter at a certain scene, at first will be loaded with the appropriate location of the vehicle parking of above-mentioned tester, then with 14 ends of two water pipes on the attemperater 5 and the import and export sweat soldering of test with ground heat exchanger 8 in test site.Afterwards attemperater 5 is full of water, the start-up control device, under the control of controller, open buried effective ebullator 6, water in the attemperater 5 will circulate at attemperater 5 with between testing with ground heat exchanger 8 by two water pipes 14, and controller is noted the import and export water temperature of test with ground heat exchanger 8 simultaneously.The operation some time, identical and keep invariable until test with the import and export water temperature of ground heat exchanger 8, the temperature of this moment be exactly test with the interior medial temperature of ground heat exchanger 8 location MTD scopes, also be the earth initial temperature.
One, heat-obtaining working condition measurement
Under the control of controller, open buried effective ebullator 6, evaporator with ebullator 7 and Air-Cooled Heat Pump Unit, on controller, set inflow temperature (be water tank cold water steady temperature) and the leaving water temperature of test then with ground heat exchanger 8.Under the effect of buried effective ebullator 6, water in the attemperater 5 will circulate at attemperater 5 with between testing with ground heat exchanger 8 by two water pipes 14, and the display on the controller will demonstrate inflow temperature, leaving water temperature, circulating water flow and the heat of test with ground heat exchanger 8 automatically.With under the effect of ebullator 7, the water in the attemperater 5 will circulate between the outer tube of attemperater 5 and evaporator 3 by two water pipes 15 at evaporator.
Meanwhile, the compressor 1 in the Air-Cooled Heat Pump Unit is constantly drawn gaseous coolant by consumed power from the interior pipe of evaporator 3, enter condenser 2 then after overcompression.The high-pressure gaseous refrigerant that enters condenser 2 condenses and becomes the high-pressure liquid refrigerant in generation in the heat radiation of outside, and the heat that discharges when condensing is dispelled in the air by fan 10.The high-pressure liquid refrigerant of discharging from condenser will flow to expansion valve 4 with its temperature and pressure of remarkable reduction, then the interior pipe of this low temperature, low pressure refrigerant inflow evaporator 3.Enter pipes in the evaporator 3 refrigerant will by with carry out heat interchange from attemperater 5 and the recirculated water that in outer tube, flows, from recirculated water, absorb heat and flash to gaseous state, the temperature with recirculated water reduces simultaneously.
Through the operation of long period, when the inflow temperature with ground heat exchanger 8 to be tested, leaving water temperature, circulating water flow and heat all reached steady state value, maintenance can think that the heat-obtaining working condition measurement finished in 4 hours under this state.
Two, heat release working condition measurement
Under the control of controller, close Air-Cooled Heat Pump Unit and evaporator ebullator 7, open buried effective ebullator 6 and electrothermal tube 9, utilize electrothermal tube 9 to give the heating of the water in the attemperater 5, buried effective ebullator 6 constantly injects test with ground heat exchanger 8 with the hot water in the attemperater 5, by the continuous circulation of above-mentioned hot water to the earth transfer heat.On controller, set inflow temperature (be water tank hot water steady temperature) and the leaving water temperature of test then with ground heat exchanger 8.Display on the controller will demonstrate inflow temperature, leaving water temperature, circulating water flow and the heat of test with ground heat exchanger 8 automatically.Through the operation of long period, when the inflow temperature with ground heat exchanger 8 to be tested, leaving water temperature, circulating water flow and heat all reach steady state value, can think that the heat release working condition measurement finishes at this moment.

Claims (6)

1. vehicular earth source heat pump geology thermophysical parameter tester, it is characterized in that: described vehicular earth source heat pump geology thermophysical parameter tester is arranged on the vehicle, and it comprises Air-Cooled Heat Pump Unit and controller that attemperater (5), electrothermal tube (9), buried effective ebullator (6), evaporator are formed with ebullator (7), by evaporator (3), compressor (1), condenser (2), expansion valve (4) and fan (10); Wherein attemperater (5) is used to hold the test loop water, and electrothermal tube (9) is installed in it, and is connected with the import and export and the evaporator (3) of test with ground heat exchanger (8) respectively by four water pipes (14,15); Evaporator is installed in ebullator (7) on the water pipe (15) that is connected between attemperater (5) and the evaporator (3), and buried effective ebullator (6) then is arranged on the water pipe (14) that is connected between attemperater (5) and the test usefulness ground heat exchanger (8); Evaporator (3), compressor (1), condenser (2) and expansion valve (4) link to each other by refrigerant pipeline (16) successively, and fan (10) is installed in the outside of condenser (2), and controller then is used to control the operation of total system.
2. vehicular earth source heat pump geology thermophysical parameter tester according to claim 1, it is characterized in that: described evaporator (3) is the coaxial sleeve tube structure, the mobile medium of pipe that is arranged in the center is a refrigerant, and the medium that flows in the outer tube is a water, and attemperater (5) upward is connected at the two ends of outer tube with evaporator (3) respectively by two water pipes (15).
3. vehicular earth source heat pump geology thermophysical parameter tester according to claim 1, it is characterized in that: describedly be connected attemperater (5) and test with being separately installed with a temperature sensor (11) on two water pipes (14) between the ground heat exchanger (8), and wherein on the water pipe (14) flowmeter (12) be installed also.
4. vehicular earth source heat pump geology thermophysical parameter tester according to claim 1 is characterized in that: on arbitrary a temperature sensor (13) is installed in described two water pipes (15) that are connected between attemperater (5) and the evaporator (3).
5. vehicular earth source heat pump geology thermophysical parameter tester according to claim 1 is characterized in that: described evaporator is fixed water pump frequently with ebullator (7).
6. vehicular earth source heat pump geology thermophysical parameter tester according to claim 1, it is characterized in that: described buried effective ebullator (6) is a variable frequency pump.
CN 201110008854 2011-01-17 2011-01-17 Vehicle-mounted physical parameter tester of geological heat of ground source heat pump Pending CN102095751A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103115943A (en) * 2013-01-11 2013-05-22 安徽省建筑工程质量监督检测站 Dew-point tester for electronic hollow glass
CN103616405A (en) * 2013-11-21 2014-03-05 苏州科技学院 Detection device of buried pipe system of ground source heat pump
CN104614163A (en) * 2015-01-19 2015-05-13 北京中科华誉能源技术发展有限责任公司 Thermal response testing device in ground-source heat pump system
CN109030059A (en) * 2018-09-08 2018-12-18 湖南东尤水汽能热泵制造有限公司 A kind of low-temperature thermal source heat pump experiment detection platform and detection method

Citations (4)

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CN2679563Y (en) * 2004-03-09 2005-02-16 刘卫东 Water heater of heat pump air conditioner
CN201242503Y (en) * 2008-08-13 2009-05-20 上海亚新建设工程总承包有限公司 Portable device for testing heat exchange capability of buried tube heat exchanger
US20090151370A1 (en) * 2007-12-14 2009-06-18 Venturedyne, Ltd. Test chamber with temperature and humidity control
CN201917539U (en) * 2011-01-17 2011-08-03 天津美意机电设备工程有限公司 Vehicle-mounted testing instrument for testing geological thermal physical parameter of ground source heat pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2679563Y (en) * 2004-03-09 2005-02-16 刘卫东 Water heater of heat pump air conditioner
US20090151370A1 (en) * 2007-12-14 2009-06-18 Venturedyne, Ltd. Test chamber with temperature and humidity control
CN201242503Y (en) * 2008-08-13 2009-05-20 上海亚新建设工程总承包有限公司 Portable device for testing heat exchange capability of buried tube heat exchanger
CN201917539U (en) * 2011-01-17 2011-08-03 天津美意机电设备工程有限公司 Vehicle-mounted testing instrument for testing geological thermal physical parameter of ground source heat pump

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《太阳能学报》 20100531 王华军等 土壤热响应特性的一种改进实验装置 第615-619页 1-6 第31卷, 第5期 2 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103115943A (en) * 2013-01-11 2013-05-22 安徽省建筑工程质量监督检测站 Dew-point tester for electronic hollow glass
CN103115943B (en) * 2013-01-11 2015-08-12 安徽省建筑工程质量监督检测站 Electronics hollow-glass dew-point tester
CN103616405A (en) * 2013-11-21 2014-03-05 苏州科技学院 Detection device of buried pipe system of ground source heat pump
CN103616405B (en) * 2013-11-21 2016-01-20 苏州科技学院 A kind of pick-up unit to ground buried pipe of ground source heat pump system
CN104614163A (en) * 2015-01-19 2015-05-13 北京中科华誉能源技术发展有限责任公司 Thermal response testing device in ground-source heat pump system
CN109030059A (en) * 2018-09-08 2018-12-18 湖南东尤水汽能热泵制造有限公司 A kind of low-temperature thermal source heat pump experiment detection platform and detection method
CN109030059B (en) * 2018-09-08 2023-10-03 湖南东尤水汽能热泵制造有限公司 Low-temperature heat source heat pump experiment detection platform and detection method

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