CN202486081U - Geotechnical thermal physical property tester for ground source heat pump - Google Patents
Geotechnical thermal physical property tester for ground source heat pump Download PDFInfo
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- CN202486081U CN202486081U CN2012201325505U CN201220132550U CN202486081U CN 202486081 U CN202486081 U CN 202486081U CN 2012201325505 U CN2012201325505 U CN 2012201325505U CN 201220132550 U CN201220132550 U CN 201220132550U CN 202486081 U CN202486081 U CN 202486081U
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Abstract
The utility model discloses a geotechnical thermal physical property tester for a ground source heat pump. A water inlet of a water supplying pipeline on the ground side and a water outlet of a water return pipeline on the ground side are respectively connected with a heater, a temperature sensor, a flow sensor, a circulation water pump and a temperature sensor are installed on the water supplying pipeline on the ground side, a temperature sensor, a flow sensor and a temperature sensor are installed on the water return pipeline on the ground side, and a power sensor is installed at the position to a current inlet of the heater. An outlet end of the water supplying pipeline on the ground side and an inlet end of the water return pipeline eon the ground side are respectively connected with an underground heat exchanger, and all the sensors are connected with a data acquisition modules connected with a processing module. Temperature redundancy and flow redundancy are adopted, heating power is measured in time, and redundancy is high. With combination of a power voltage stabilizing method, the tester solves the problem that an existing geotechnical thermal physical property tester for the ground source heat pump is not high in precision, enables a test result to be more reliable, and is easy to operate and expand.
Description
Technical field
The utility model belongs to source (soil source), ground art of heat pumps, is specifically related to a kind of earth source heat pump ground thermal property tester.
Background technology
At present, general earth source heat pump ground thermal property tester have ground source supply channel temperature sensor, source return water temperature sensor, flow sensor, pressure transducer, every type of sensor is one.Ground source confession, the water return pipeline temperature difference, rate-of flow and heater power directly influence the accuracy of soil thermal physical property parameter.Yet much existing earth source heat pump ground thermal property tester does not have redundant measurement, and heater power is not measured the U type passage temperature difference, flow.During actual field was used, the voltage fluctuation meeting produced temperature, flow sensor and disturbs, and influences measuring accuracy.Voltage fluctuation causes that flow and power swing also can produce negative interaction to hot rerum natura result's precision.
Summary of the invention
In order to overcome the deficiency that existing earth source heat pump ground thermal property tester measuring accuracy can't be protected; The utility model provides a kind of high precision earth source heat pump ground thermal property tester; This tester utilizes the sensor redundancy; For overcoming the interference of on-the-spot voltage fluctuation, install voltage stabilizer additional at the general supply input end to sensor accuracy, rate-of flow and heater power.Through the redundant measurement of temperature sensors of high precision redundant measurement, flow sensor, the high-acruracy survey of heating power and the effect of shielding line and voltage stabilizer, can realize the high-acruracy survey of earth source heat pump ground thermal property parameter.
In order to achieve the above object, the utility model has adopted following technical solution:
A kind of earth source heat pump ground thermal property tester; It is characterized in that, comprise power supply, temperature sensor, second temperature sensor, three-temperature sensor, the 4th temperature sensor, first flow sensor and second flow sensor, power sensor, data acquisition module, processing module, voltage stabilizer, the source supply channel, source water return pipeline, well heater and water circulating pump;
Power supply is connected respectively to water circulating pump, well heater and data acquisition module after through voltage stabilizer; The water inlet of source supply channel is connected with well heater respectively with the water delivering orifice of ground source water return pipeline on ground, on ground source supply channel, by water (flow) direction temperature sensor, flow sensor, water circulating pump and temperature sensor is installed successively; On ground source water return pipeline, by water (flow) direction temperature sensor, flow sensor and temperature sensor are installed successively, wherein, three-temperature sensor and the 4th temperature sensor lay respectively at the water inlet and the water delivering orifice place of well heater; Electric current porch at well heater is equipped with power sensor;
The endpiece of ground source supply channel and the inlet end of ground source water return pipeline are connected subterranean heat exchanger respectively;
First temperature sensor, second temperature sensor, three-temperature sensor, the 4th temperature sensor, first flow sensor and second flow sensor and power sensor all are connected to data acquisition module, and data acquisition module links to each other with processing module.
Said data acquisition module adopts NI USB-6008.
Said processing module adopts notebook computer.
Said first temperature sensor, second temperature sensor, three-temperature sensor, the 4th temperature sensor, first flow sensor and second flow sensor and power sensor all are connected to data acquisition module through shielded signal wire.
The utility model employing temperature is redundant, flow is redundant, and measures heating power in real time, and redundance is high.Solve the not high problem of present earth source heat pump ground thermal property tester precision in conjunction with power supply voltage stabilizing means, make test result more reliable, more identical with actual result, measuring accuracy is high.The utility model can be realized equipment interlocking start and stop-safeguard protection-status monitoring-upper management functions such as (data in real time are handled with graphical and shown), and corresponding power-off protection is arranged.The utility model is easy to operate, is prone to expansion.
Description of drawings
Fig. 1 is the system architecture synoptic diagram of the utility model.
Fig. 2 is the system data acquisition principle figure of the utility model.
Fig. 3 is the system electrical wiring schematic diagram of the utility model.
Among the figure: 1-first temperature sensor, 2-second temperature sensor, 3-three-temperature sensor; 4-the 4th temperature sensor 5-flow sensor, 6-second flow sensor, 7-power sensor; The 8-data acquisition module, 9-processing module, 10-voltage stabilizer; 11-ground source supply channel, 12-ground source water return pipeline, 13-well heater, 14-water circulating pump.
Below in conjunction with accompanying drawing and embodiment explanation the utility model is further explained.
Embodiment
Like Fig. 1, shown in Figure 2, the utility model comprise power supply, temperature sensor 1, second temperature sensor 2, three-temperature sensor 3, the 4th temperature sensor 4, first flow sensor 5 and second flow sensor 6, power sensor 7, data acquisition module 8, processing module 9, voltage stabilizer 10, source supply channel 11, source water return pipeline 12, well heater 13 and water circulating pump 14.
Power supply is connected respectively to water circulating pump 14, well heater 13 and data acquisition module 8 after through voltage stabilizer 10; The water delivering orifice of the water inlet of source supply channel 11 and ground source water return pipeline 12 is connected with well heater 13 respectively on ground, on ground source supply channel 11, by water (flow) direction temperature sensor 4, flow sensor 6, water circulating pump 14 and temperature sensor 1 is installed successively; On ground source water return pipeline 12, by water (flow) direction temperature sensor 2, flow sensor 5 and temperature sensor 3 are installed successively, wherein, three-temperature sensor 3 and the 4th temperature sensor 4 lay respectively at the water inlet and the water delivering orifice place of well heater 13; Electric current porch at well heater 13 is equipped with power sensor 7, in real time the monitoring record heater power;
The endpiece of ground source supply channel 11 and the inlet end of ground source water return pipeline 12 are connected subterranean heat exchanger respectively.
As shown in Figure 2; First temperature sensor 1, second temperature sensor 2, three-temperature sensor 3, the 4th temperature sensor 4, first flow sensor 5 and second flow sensor 6 and power sensor 7 all are connected to data acquisition module 8 through shielded signal wire, and data acquisition module 8 converts all analog quantitys into digital quantity; First temperature sensor 1 and the 4th temperature sensor 4 are redundant each other; Second temperature sensor 2 and three-temperature sensor 3 are redundant each other; The first flow sensor 5 and second flow sensor 6 are redundant each other; Data acquisition module 8 links to each other with processing module 9.
Processing module 9 is used for the temperature of all the sensors collection, flow and performance number are carried out real-time curve demonstration, historical trend curve display and data recording, processing, can utilize measurement data to calculate the ground thermal property parameter, adopts notebook computer.
As shown in Figure 3, three-phase four-wire power is connected respectively to water circulating pump 14 after through voltage stabilizer 10, well heater 13 and data acquisition module 8, and have standby power supply.Voltage stabilizer 10 can overcome the variation issue that on-the-spot voltage fluctuation causes well heater 13 power, fluid flow.Each equipment all is equipped with air switch, can realize equipment interlocking start and stop-safeguard protection, and corresponding power-off protection is arranged.
The utility model is applied to the test of earth source heat pump ground thermal property parameter, and " permanent hot-fluid " the heat release method of employing is tested.Tube fluid is recycled water pump 14 conveyings and is sent into subterranean heat exchanger after well heater 13 heating.Utilize the temperature sensor monitors fluid temperature (F.T.), flow sensor monitoring fluid flow, power sensor 7 monitoring heater powers.After fluid is heated by well heater 13; Pass through successively temperature sensor 4, flow sensor 6, water circulating pump 14, first temperature sensor 1, source supply channel 11, pipe laying (subterranean heat exchanger), behind source water return pipeline 12, temperature sensor 2, flow sensor 5 and the temperature sensor 3, get back to well heater 13.Heated fluid is through ground source heat interchanger and soil generation heat interchange, soil is carried out heat release after, return water temperature is lower than supply water temperature.So continuous circulation through behind the certain hour, reaches the heat transfer balance.Utilize all the sensors measured value can calculate the ground thermal property parameter.
Claims (4)
1. earth source heat pump ground thermal property tester; It is characterized in that, comprise power supply, temperature sensor (1), second temperature sensor (2), three-temperature sensor (3), the 4th temperature sensor (4), first flow sensor (5) and second flow sensor (6), power sensor (7), data acquisition module (8), processing module (9), voltage stabilizer (10), source supply channel (11), source water return pipeline (12), well heater (13) and water circulating pump (14);
Said power supply is connected respectively to water circulating pump (14), well heater (13) and data acquisition module (8) after through voltage stabilizer (10); The water delivering orifice of the water inlet of source supply channel (11) and ground source water return pipeline (12) is connected with well heater (13) respectively on ground, and source supply channel (11) is gone up and by water (flow) direction temperature sensor (4), flow sensor (6), water circulating pump (14) and temperature sensor (1) is installed successively on ground; Source water return pipeline (12) is gone up and by water (flow) direction temperature sensor (2), flow sensor (5) and temperature sensor (3) is installed successively on ground; Wherein, three-temperature sensor (3) and the 4th temperature sensor (4) lay respectively at the water inlet and the water delivering orifice place of well heater (13); In the electric current porch of well heater (13) power sensor (7) is installed;
The endpiece of ground source supply channel (11) and the inlet end of ground source water return pipeline (12) are connected subterranean heat exchanger respectively;
First temperature sensor (1), second temperature sensor (2), three-temperature sensor (3), the 4th temperature sensor (4), first flow sensor (5) and second flow sensor (6) and power sensor (7) all are connected to data acquisition module (8), and data acquisition module (8) links to each other with processing module (9).
2. earth source heat pump ground thermal property tester as claimed in claim 1 is characterized in that, said data acquisition module (8) adopts NI USB-6008.
3. earth source heat pump ground thermal property tester as claimed in claim 1 is characterized in that, said processing module (9) adopts notebook computer.
4. earth source heat pump ground thermal property tester as claimed in claim 1; It is characterized in that said first temperature sensor (1), second temperature sensor (2), three-temperature sensor (3), the 4th temperature sensor (4), first flow sensor (5) and second flow sensor (6) and power sensor (7) all are connected to data acquisition module (8) through shielded signal wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201325505U CN202486081U (en) | 2012-03-31 | 2012-03-31 | Geotechnical thermal physical property tester for ground source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201325505U CN202486081U (en) | 2012-03-31 | 2012-03-31 | Geotechnical thermal physical property tester for ground source heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202486081U true CN202486081U (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201325505U Expired - Fee Related CN202486081U (en) | 2012-03-31 | 2012-03-31 | Geotechnical thermal physical property tester for ground source heat pump |
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| CN (1) | CN202486081U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115937A (en) * | 2013-02-28 | 2013-05-22 | 河海大学 | Physical model experiment system for water-heat coupling sand slot of porous medium aquifer |
| CN106770439A (en) * | 2016-11-28 | 2017-05-31 | 南京大学 | Rock-soil layer is layered Determination of conductive coefficients method |
-
2012
- 2012-03-31 CN CN2012201325505U patent/CN202486081U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115937A (en) * | 2013-02-28 | 2013-05-22 | 河海大学 | Physical model experiment system for water-heat coupling sand slot of porous medium aquifer |
| CN103115937B (en) * | 2013-02-28 | 2016-03-23 | 河海大学 | A kind of porous medium aquifer water-thermal coupling sand launder physical model experiment system |
| CN106770439A (en) * | 2016-11-28 | 2017-05-31 | 南京大学 | Rock-soil layer is layered Determination of conductive coefficients method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20130331 |