CN107525821A - Live thermal property tester caliberating device and method - Google Patents
Live thermal property tester caliberating device and method Download PDFInfo
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- CN107525821A CN107525821A CN201710888426.9A CN201710888426A CN107525821A CN 107525821 A CN107525821 A CN 107525821A CN 201710888426 A CN201710888426 A CN 201710888426A CN 107525821 A CN107525821 A CN 107525821A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
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Abstract
The invention discloses a kind of live thermal property tester caliberating device and method, described device includes buried tubing loop and outside major loop；Buried tubing loop includes sandbox, and uniform fine sand is filled up in the sandbox, and sandbox central horizontal places drilling, and single U-shaped underground pipe is inserted in drilling；Outside major loop includes：The outlet of water circulating pump and the import of water tank are connected, and the triple valve of outlet second of water tank is connected with the import of single U-shaped underground pipe；The triple valve of outlet first of single U-shaped underground pipe and the entrance of water circulating pump connect；First temperature sensor and flowmeter are between the outlet of the U-shaped underground pipe of the list and the first triple valve, and second temperature sensor is between the import of the second triple valve and single U-shaped underground pipe；First temperature sensor, flowmeter and second temperature sensor are connected with data acquisition device；Thermal property tester to be calibrated is incorporated to outside major loop by the first and second triple valves.The present invention can be demarcated exactly to tester.
Description
Technical field
The present invention relates to technical field of ground source heat pump, more particularly to a kind of live thermal property tester caliberating device and side
Method.
Background technology
Shallow layer geothermal energy has the characteristics of reserves are huge, regeneration is rapid, widely distributed, the temperature four seasons are moderate, utilization
Shallow layer geothermal energy, the raising to energy supply, the optimization of energy resource structure, and preserve the ecological environment significant.
Earth source heat pump is the main utilization ways of shallow layer geothermal energy resource, because China's underground heat water shortage, water resource are serious
Shortage, therefore ground source heat pump technology is in widespread attention.When carrying out ground heat exchanger design to earth-source hot-pump system, if
The quantitative design of pipe laying is on the low side, the heating refrigerating capacity deficiency of system, makes source pump fluctuation of service, influences system and use the longevity
Life；If design is on the high side, the loss for the increase and soil resource tentatively invested is caused.Therefore, ground heat exchanger is ground source
The emphasis of heat pump system designs.The design of ground heat exchanger need to obtain ground thermal property parameter, and its accuracy is directly connected to
The investment of system and performance.
It is the most accurate and universal with live geo-thermal response test method in existing ground thermal property parameter determination method.Live heat
Response test is realized by live thermal property tester, error caused by can thus avoiding On-the-spot factor from influenceing, makes survey
It is more accurate to measure the result calculated.So the measurement accuracy of live thermal property tester and the degree of accuracy have very big shadow to test result
Ring.
Therefore, the demarcation to live thermal property tester is realized, ensures the measurement accuracy and standard of live thermal property tester
Exactness, it is the current technical issues that need to address of those skilled in the art.
The content of the invention
To achieve these goals, the invention provides a kind of live thermal property tester caliberating device and method, to existing
The measuring accuracy of field thermal property tester and the degree of accuracy are detected and demarcated, and live thermal property tester is reached specification will
Ask, so as to improve the accuracy of ground heat exchanger design, realize the energy-conservation and Effec-tive Function of earth-source hot-pump system.
The present invention adopts the following technical scheme that：
A kind of live thermal property tester caliberating device, including the buried tubing loop of sandbox and exterior line；
The buried tubing loop of sandbox includes sandbox (1), and uniform fine sand is filled up in the sandbox (1), and sandbox central horizontal is placed
Drilling, single U-shaped underground pipe is embedded in drilling；Wherein, known to the thermal physical property parameter of the fine sand and the backfilling material in drilling；
Exterior line includes the first temperature sensor (2), flowmeter (3), the first triple valve (5), water circulating pump (6), water
Case (7), the second triple valve (9), second temperature sensor (10), data acquisition device (11), wherein, water circulating pump (6) go out
Mouth is connected with the import of water tank (7), and the import of the triple valve of outlet second (9) of the water tank (7) and single U-shaped underground pipe connects
Connect；The triple valve of outlet first (5) of the U-shaped underground pipe of list is connected with the entrance of the water circulating pump (6)；First temperature passes
Sensor (2) and flowmeter (3) are between the outlet of the U-shaped underground pipe of the list and the first triple valve (5), second temperature sensor
(10) between the import of second triple valve (9) and single U-shaped underground pipe；First temperature sensor (2), flowmeter
(3) it is connected with second temperature sensor (10) with data acquisition device (11)；
Thermal property tester (4) inlet and outlet to be calibrated passes through the 3rd interface with the first triple valve (5) respectively
Connected with the 3rd interface of the second triple valve (9) and be incorporated to exterior line.
Further, the open top of sandbox 1, certain distance sets spray equipment (12) above sandbox；Sandbox (1)
Bottom has constant slope, is tilted towards water tank side, and sandbox is towards being additionally provided with discharge outlet, water tank peripheral hardware below water tank side
There is gutter.
Further, the spray equipment (12) is a drainpipe, and spray apertures, the drainpipe and earth's surface are beaten on drainpipe
On water pipe be connected.
Further, it is additionally provided with the three-temperature sensor being connected with data acquisition device (11) in the sandbox 1.
Further, heater is set in the water tank (7).
Further, it is additionally provided with water supply tank (8) between the water circulating pump (6) and water tank (7).
According to the second object of the present invention, surveyed present invention also offers a kind of using the live hot physical property of the caliberating device
Try instrument scaling method, it is characterised in that comprise the following steps：
Step 1：The switch of the first triple valve (5) and the second triple valve (9) is controlled, makes thermal property tester to be calibrated
(4) connected between sandbox (1), close the connection with water tank (7) and pump (6)；
Step 2：Start thermal property tester to be calibrated (4), the water for making thermal property tester (4) internal passes through sandbox 1
The U-shaped underground pipe of interior list circulates；
Step 3：Instrument measurement is carried inside by the use of thermal property tester (4) and records temperature and flow etc. as test number
According to；
Step 4：Using gained test data and known mathematical modeling, returned in the interior sand of estimation sandbox (1) and/or drilling
The thermal physical property parameter of filling chock material；
Step 5：The parameter estimated is compared with the thermal physical property parameter of known sand and backfilling material, with
Demarcate the thermal property tester (4).
According to the third object of the present invention, there is seepage action of ground water using the caliberating device present invention also offers one kind
In the case of live thermal property tester scaling method, it is characterised in that comprise the following steps：
Step 1：The switch of the first triple valve (5) and the second triple valve (9) is controlled, makes thermal property tester to be calibrated
(4) connected between sandbox (1), close the connection with water tank (7) and pump (6)；
Step 2：Start spray equipment (12), the sand measured using data acquisition device (11) collection three-temperature sensor
The temperature data of specified point in case；After certain time, start thermal property tester to be calibrated (4), make thermal property tester (4)
Internal water is circulated by the U-shaped underground pipe of list in sandbox (1)；
Step 3：Instrument measurement is carried inside by the use of thermal property tester (4) and records temperature and flow as test number
According to；
Step 4：Using the test data and given mathematical modeling, backfilled in the interior sand of estimation sandbox (1) and/or drilling
The thermal physical property parameter of material；
Step 5：The parameter and known models estimated according to step 3, the thermo parameters method of fine sand inside sandbox is calculated, is obtained
The temperature value of the specified point.
Step 6：The temperature value for the point that the temperature value of the specified point and data acquisition device (11) are measured compares, with
Demarcate thermal property tester (4).
According to the fourth object of the present invention, surveyed present invention also offers a kind of using the live hot physical property of the caliberating device
Try instrument scaling method, it is characterised in that comprise the following steps：
Step 1：The switch of the first triple valve (5) and the second triple valve (9) is controlled, makes to connect between water tank (7) and sandbox (1)
It is logical, make to fill water in caliberating device；
Step 2：Open water circulating pump (6), drive the water in the caliberating device pipeline to flow, and control heater with
Constant power heats to the water in water tank (7)；The first temperature sensor (2), stream are gathered using data acquisition device (11)
Gauge (3), second temperature sensor (10) data measured are as test data；
Step 3：The test data and given mathematical modeling gathered according to data acquisition device (11), estimation sandbox (1) are interior
The thermal physical property parameter of backfilling material in sand and/or drilling；
Step 4：The switch of the first triple valve (5) and the second triple valve (9) is controlled, makes thermal property tester to be calibrated
(4) connected between sandbox (1)；
Step 5：Start thermal property tester to be calibrated (4), the water for making thermal property tester (4) internal passes through sandbox 1
Interior U-shaped underground pipe circulates；By the use of carry instrument measurement inside thermal property tester (4) and record temperature and flow as
Test data；
Step 6：The test data and given mathematical modeling measured according to thermal property tester (4) to be calibrated, estimation are husky
The thermal physical property parameter of backfilling material in the interior sand of case (1) and/or drilling；
Step 7：Step 6 is compared with the thermal physical property parameter that step 3 is calculated, with the hot physical property measurement in demarcation scene
Instrument.
Further, spray equipment (12) is also opened before opening water circulating pump (6), for the scene mark under seepage flow scene
It is fixed.
Beneficial effects of the present invention：
1st, caliberating device of the invention is made up of the buried tubing loop of sandbox and exterior line, and wherein exterior line is provided with water
Case, and the data acquisition device of the multiple sensors of connection, to obtain the normal data of demarcation institute foundation；Hot physical property to be calibrated is surveyed
Examination instrument is connected in caliberating device by triple valve, to obtain actual test data, is surveyed based on difference therebetween
Instrument demarcation is tried, ensure that the precision of thermal property tester.
2nd, the present invention simulates rainwash scene, by true by installing spray equipment and setting sandbox bottom angled
The reduction of real field scape, the precision for the demarcation of live thermal property tester provide guarantee.
3rd, caliberating device of the invention possesses various calibration method, can be selected according to practical situations.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not form the improper restriction to the application.
Fig. 1 is the live thermal property tester caliberating device system diagram of the present invention；
Fig. 2 is the drilling drawing inside sandbox, engineer's scale 1 in the live thermal property tester caliberating device of the present invention:10；
Fig. 3 is the profile of the drilling inside Fig. 2 sandboxs of the present invention.
In figure, 1 sandbox；2 first temperature sensors；3 flowmeters；4 testers；5 first triple valves；6 water circulating pumps；7 water
Case；8 water supply tanks；9 second triple valves；10 second temperature sensors；11 data acquisition devices；12 spray equipments；13PE32 is managed；14
Pipe of concrete.
Embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
In the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined.
Embodiment one
Present embodiments provide a kind of live thermal property tester caliberating device.
As shown in figure 1, the device includes：The buried tubing loop of sandbox and exterior line.
The buried tubing loop of sandbox includes sandbox 1, and uniform fine sand, sandbox known to thermal physical property parameter are filled up in the sandbox 1
Central horizontal places drilling, and drilling, it is concrete prefabricated to use, and the thermal physical property parameter of cement is, it is known that be embedded to single U of PE materials in drilling
Type underground pipe；The open top of sandbox 1, provided with dismountable thermal baffle；Certain distance sets spray equipment above sandbox 1
12.The spray equipment is a sparge pipe, is equipped with spray apertures thereon, and sparge pipe is connected with the water pipe on ground；The bottom of sandbox 1
With constant slope, tilted towards the side of water tank 7, sandbox 1 is provided with discharge outlet towards the lower section of the side of water tank 7, and water tank is externally provided with
Gutter.Drawing and pulling type maintenance door is left in the side of sandbox 1, facilitates the back-up sand in later stage and the inspection toward equipment such as effluent sand and sensors
Repair.The exterior wall of sandbox 1 is made using insulation foam plate and cement mortar.It is additionally provided with what is be connected with data acquisition device 11 in sandbox 1
Three-temperature sensor.
Exterior line includes the first temperature sensor 2, flowmeter 3, the first triple valve 5, water circulating pump 6, water tank 7, second
Triple valve 9, second temperature sensor 10, data acquisition device 11, wherein, the outlet of water circulating pump 6 connects with the import of water tank 7
Connect, the second triple valve of outlet 9 of the water tank 7 is connected with the import of single U-shaped underground pipe；Heater is set in water tank 7；It is described
The first triple valve of outlet 5 of single U-shaped underground pipe is connected with the entrance of the water circulating pump 6；First temperature sensor 2 and flow
For meter 3 between the outlet of the U-shaped underground pipe of the list and the first triple valve 5, second temperature sensor 10 is located at the described 2nd 3
Between the import of port valve 9 and single U-shaped underground pipe；First temperature sensor 2, flowmeter 3 and second temperature sensor 10 are equal
It is connected with data acquisition device 11；Water supply tank 8 is additionally provided between water circulating pump 6 and water tank 7.
The inlet and outlet of thermal property tester 4 to be calibrated passes through the 3rd interface with the first triple valve 5 respectively
Connected with the 3rd interface of the second triple valve 9 and be incorporated to exterior line.
The inlet and outlet of thermal property tester 4 to be calibrated passes through the 3rd interface and second of the first triple valve 5 respectively
The 3rd interface connection of triple valve 9.
In the present embodiment, the size of sandbox 1 is 2.55 × 2.55 × 21m, and its agent structure is armored concrete, and thickness is
250mm；The uniform fine sand filled up in sandbox 1 is used to alternatively descend ground；The drilling that sandbox 1 central horizontal is placed uses one
Diameter 15cm concrete column, drill the single U-shaped underground pipe of interior insertion, and U-tube is horizontal positioned, its axis and concrete column center superposition.
Sliding door is left in the side of sandbox 1, facilitates the back-up sand in later stage and past effluent sand.To avoid influence of the indoor environment to sandbox,
The external wall of sandbox 1 need to do isothermal holding, be completed using insulation foam plate and cement mortar.The thickness of warming plate is 50mm.
Alternatively, demarcated to be realized to the thermal property tester under seepage flow scene, the open top of sandbox 1, in sand
Certain distance sets spray equipment 12 above case；The spray equipment is a drainpipe, and spray apertures, the draining are played on drainpipe
Pipe is connected with the water pipe in earth's surface.In the present embodiment, drainpipe is arranged on above sandbox at 1m~1.5m.Spray equipment 12
To simulate underground percolation.
Now, the bottom of sandbox 1 has constant slope, and the gradient is i=0.005 slope aspect water tanks side；Sandbox is towards water tank one
The lower section of side is provided with discharge outlet, is convenient for draining during Seepage Experiment.
Heater is set in the water tank 7, for the water in heating water tank.
Alternatively, water supply tank 8 is additionally provided between the water circulating pump 6 and water tank 7, for making up water when caliberating device is run
Loss in the place such as pipeline junction.
According to different scenes or demarcation foundation, the application method of the caliberating device is referring to embodiment two-five.
Embodiment two
The present embodiment uses foundation of known sand and the backfilling material thermal physical property parameter as demarcation in sandbox, there is provided
A kind of thermal property tester scaling method using caliberating device in embodiment one, comprise the following steps：
Step 1：The switch of the first triple valve 5 and the second triple valve 9 is controlled, makes thermal property tester 4 and sand to be calibrated
Connected between case 1, close the connection with water tank (7) and pump (6)；
Step 2：Start thermal property tester 4 to be calibrated, the water inside thermal property tester 4 is passed through in sandbox 1
Single U-shaped underground pipe circulates；
Step 3：Using carried inside thermal property tester 4 instrument (temperature, flow sensor etc.) measure and record temperature,
The parameter such as flow and power is as test data；
Step 4：Using gained test data and known mathematical modeling, estimate in sandbox 1 and backfilled in sand and/or drilling
The thermal physical property parameter of material；
Step 5：The parameter estimated is compared with the thermal physical property parameter of known sand and backfilling material, with
Demarcate the thermal property tester 4.
Embodiment three
The present embodiment is using foundation of the thermal physical property parameter that the caliberating device measures as demarcation, there is provided using implementation
The thermal property tester scaling method of caliberating device, comprises the following steps in example one：
Step 1：The switch of the first triple valve 5 and the second triple valve 9 is controlled, makes to connect between water tank 7 and sandbox 1, makes mark
Determine to fill water in device；
Step 2：Water circulating pump 6 is opened, drives the water in the caliberating device pipeline to flow, and controls heater with solid
Determine power to heat the water in water tank 7；The first temperature sensor 2, flowmeter 3, the are gathered using data acquisition device 11
The parameters such as temperature that two temperature sensors 10 measure, flow are as test data；
Step 3：The test data and given mathematical modeling gathered according to data acquisition device 11, estimates sand in sandbox 1
And/or drilling in backfilling material thermal physical property parameter；
Step 4：The switch of the first triple valve 5 and the second triple valve 9 is controlled, makes thermal property tester 4 and sand to be calibrated
Connected between case 1；
Step 5：Start thermal property tester 4 to be calibrated, the water inside thermal property tester 4 is passed through the U in sandbox 1
Type underground pipe circulates；Measure using instrument (temperature, flow sensor) is carried inside thermal property tester 4 and record temperature
The parameters such as degree, flow and power are as test data；
Step 6：The test data and given mathematical modeling measured according to thermal property tester 4 to be calibrated, estimate sandbox 1
The thermal physical property parameter of backfilling material in interior sand and/or drilling；
Step 7：Step 6 is compared with the thermal physical property parameter that step 3 is calculated, to demarcate thermal property tester
Inside carries instrument.
During test, water is filled in systems first, performance adjustment is carried out to detection platform.When detection platform each side is run
When normal, the detection of thermal property tester can be carried out.Devices to test is done to test running experiment on monitor station, by monitor station with
Devices to test is connected, and adjustment valve connects whole loop operation, and now water circulating pump (5) is closed, and fluid flows from sandbox (1)
Enter in Devices to test by triple valve (4) after going out, flow back into by triple valve (4) during sandbox (1) exchanged heat.Inspection is set
Whether the communication, data acquisition and output between standby normal, and whether there is the place of leak, if all go well operation work it
Afterwards, the performance detection of equipment can be carried out.The thermal physical property parameter for the quartz sand that Devices to test is measured and known accurate data
It is analyzed, compares the error and accuracy of Devices to test test.
Example IV
Foundation of the temperature data of specified point as demarcation in the sandbox that the present embodiment is gathered using data acquisition device 11,
One kind is provided in the case of having seepage action of ground water, using the thermal property tester demarcation side of caliberating device described in embodiment one
Method, comprise the following steps：
Step 1：The switch of the first triple valve 5 and the second triple valve 9 is controlled, makes thermal property tester 4 and sand to be calibrated
Connected between case 1, close the connection with water tank 7 and pump 6；
Step 2：Start spray equipment 12, in the sandbox measured using the collection three-temperature sensor of data acquisition device 11
The temperature data of specified point；After certain time, start thermal property tester 4 to be calibrated, make the water inside thermal property tester 4
Circulated by the U-shaped underground pipe of list in sandbox 1；
Step 3：Using carried inside thermal property tester 4 instrument (temperature, flow sensor) measure and record temperature, stream
The parameter such as amount and power is as test data；
Step 4：Using gained test data and known mathematical modeling, estimate in sandbox 1 and backfilled in sand and/or drilling
The thermal physical property parameter of material；
Step 5：The parameter and known models estimated according to step 3, the thermo parameters method of fine sand inside sandbox is calculated, is obtained
The temperature value of the specified point.
Step 6：The temperature value for the point that the temperature value of the specified point is measured with data acquisition device 11 compares, with mark
Determine thermal property tester 4.
Embodiment five
The present embodiment is using foundation of the thermal physical property parameter that the caliberating device measures as demarcation, there is provided one kind uses
Thermal property tester scaling method under the underground percolation situation of caliberating device, comprises the following steps in embodiment one：
Step 1：The switch of the first triple valve 5 and the second triple valve 9 is controlled, makes to connect between water tank 7 and sandbox 1, makes mark
Determine to fill water in device；
Step 2：Start spray equipment 12, open water circulating pump 6, drive the water in the caliberating device pipeline to flow, and
And control heater is heated with constant power to the water in water tank 7；The first temperature is gathered using data acquisition device 11 to pass
The parameters such as temperature that sensor 2, flowmeter 3, second temperature sensor 10 measure, flow are as test data；
Step 3：The test data and given mathematical modeling gathered according to data acquisition device 11, estimates sand in sandbox 1
And/or drilling in backfilling material thermal physical property parameter；
Step 4：The switch of the first triple valve 5 and the second triple valve 9 is controlled, makes thermal property tester 4 and sand to be calibrated
Connected between case 1；
Step 5：After certain time (being 30 minutes in the present embodiment), start thermal property tester 4 to be calibrated, make hot thing
Water inside property tester 4 is circulated by the U-shaped underground pipe in sandbox 1；Using carrying instrument inside thermal property tester 4
(temperature, flow sensor) measures and records the parameters such as temperature, flow and power as test data；
Step 6：The test data and given mathematical modeling measured according to thermal property tester 4 to be calibrated, estimate sandbox 1
The thermal physical property parameter of backfilling material in interior sand and/or drilling；
Step 7：Step 6 is compared with the thermal physical property parameter that step 3 is calculated, with the hot physical property measurement in demarcation scene
Instrument 4.
The present invention is respectively adopted water tank and underground pipe pipeline is connected with thermal property tester, to obtain for demarcating reference
Normal data and actual test data, tester demarcation is carried out based on difference therebetween, ensure that thermal property tester
Precision.The tester that the present invention is applied to different scenes is demarcated, and the precision for the demarcation of live thermal property tester provides guarantee.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.
Claims (10)
1. a kind of live thermal property tester caliberating device, including the buried tubing loop of sandbox and exterior line；
The buried tubing loop of sandbox includes sandbox (1), and uniform fine sand is filled up in the sandbox (1), and sandbox central horizontal places drilling,
Single U-shaped underground pipe is embedded in drilling；Wherein, known to the thermal physical property parameter of the fine sand and the backfilling material in drilling；
Exterior line includes the first temperature sensor (2), flowmeter (3), the first triple valve (5), water circulating pump (6), water tank
(7), the second triple valve (9), second temperature sensor (10), data acquisition device (11), wherein, the outlet of water circulating pump (6)
Import with water tank (7) is connected, and the triple valve of outlet second (9) of the water tank (7) is connected with the import of single U-shaped underground pipe；
The triple valve of outlet first (5) of the U-shaped underground pipe of list is connected with the entrance of the water circulating pump (6)；First TEMP
Device (2) and flowmeter (3) are between the outlet of the U-shaped underground pipe of the list and the first triple valve (5), second temperature sensor
(10) between the import of second triple valve (9) and single U-shaped underground pipe；First temperature sensor (2), flowmeter
(3) it is connected with second temperature sensor (10) with data acquisition device (11)；
Thermal property tester (4) inlet and outlet to be calibrated passes through the 3rd interface with the first triple valve (5) and respectively
The 3rd interface connection of two triple valves (9) is incorporated to exterior line.
A kind of 2. live thermal property tester caliberating device as claimed in claim 1, it is characterised in that the top of sandbox 1
Opening, certain distance sets spray equipment (12) above sandbox；Sandbox (1) bottom has constant slope, towards water tank side
Tilt, for sandbox towards discharge outlet is additionally provided with below water tank side, water tank is externally provided with gutter.
A kind of 3. live thermal property tester caliberating device as claimed in claim 2, it is characterised in that the spray equipment
(12) it is a drainpipe, beats spray apertures on drainpipe, the drainpipe is connected with the water pipe in earth's surface.
4. a kind of live thermal property tester caliberating device as claimed in claim 2 or claim 3, it is characterised in that in the sandbox 1
It is additionally provided with the three-temperature sensor being connected with data acquisition device (11).
5. a kind of live thermal property tester caliberating device as claimed in claim 1, it is characterised in that in the water tank (7)
Heater is set.
A kind of 6. live thermal property tester caliberating device as claimed in claim 1, it is characterised in that the water circulating pump
(6) water supply tank (8) is additionally provided between water tank (7).
7. a kind of live thermal property tester scaling method using any one of the claim 1-6 caliberating devices, its feature
It is, comprises the following steps：
Step 1：Control the switch of the first triple valve (5) and the second triple valve (9), make thermal property tester to be calibrated (4) and
Sandbox connects between (1), closes the connection with water tank (7) and pump (6)；
Step 2：Start thermal property tester to be calibrated (4), the water for making thermal property tester (4) internal passes through in sandbox 1
Single U-shaped underground pipe circulates；
Step 3：Carry instrument measurement inside by the use of thermal property tester (4) and record temperature and flow and be used as test data；
Step 4：Using gained test data and known mathematical modeling, material is backfilled in the interior sand of estimation sandbox (1) and/or drilling
The thermal physical property parameter of material；
Step 5：The parameter estimated is compared with the thermal physical property parameter of known sand and backfilling material, with demarcation
The thermal property tester (4).
A kind of 8. lower hot physical property in scene using any one of the claim 2-4 caliberating devices in the case of having seepage action of ground water
Tester scaling method, it is characterised in that comprise the following steps：
Step 1：Control the switch of the first triple valve (5) and the second triple valve (9), make thermal property tester to be calibrated (4) and
Sandbox connects between (1), closes the connection with water tank (7) and pump (6)；
Step 2：Start spray equipment (12), in the sandbox measured using data acquisition device (11) collection three-temperature sensor
The temperature data of specified point；After certain time, start thermal property tester to be calibrated (4), make thermal property tester (4) internal
Water circulated by the U-shaped underground pipe of list in sandbox (1)；
Step 3：Carry instrument measurement inside by the use of thermal property tester (4) and record temperature and flow and be used as test data；
Step 4：Using the test data and known mathematical modeling, material is backfilled in the interior sand of estimation sandbox (1) and/or drilling
The thermal physical property parameter of material；
Step 5：The parameter and known models estimated according to step 3, the thermo parameters method of fine sand inside sandbox is calculated, obtained described
The temperature value of specified point.
Step 6：The temperature value for the point that the temperature value of the specified point and data acquisition device (11) are measured compares, with demarcation
Thermal property tester (4).
9. a kind of live thermal property tester scaling method using any one of the claim 1-6 caliberating devices, its feature
It is, comprises the following steps：
Step 1：The switch of the first triple valve (5) and the second triple valve (9) is controlled, makes to connect between water tank (7) and sandbox (1),
Make to fill water in caliberating device；
Step 2：Water circulating pump (6) is opened, drives the water in the caliberating device pipeline to flow, and control heater with fixation
Power heats to the water in water tank (7)；The first temperature sensor (2), flowmeter are gathered using data acquisition device (11)
(3), second temperature sensor (10) data measured is as test data；
Step 3：The test data and given mathematical modeling gathered according to data acquisition device (11), estimates sandbox (1) interior sand
And/or drilling in backfilling material thermal physical property parameter；
Step 4：Control the switch of the first triple valve (5) and the second triple valve (9), make thermal property tester to be calibrated (4) and
Sandbox connects between (1)；
Step 5：Start thermal property tester to be calibrated (4), the water for making thermal property tester (4) internal passes through the U in sandbox 1
Type underground pipe circulates；Instrument measurement is carried inside by the use of thermal property tester (4) and records temperature and flow as test
Data；
Step 6：The test data and given mathematical modeling measured according to thermal property tester (4) to be calibrated, estimation sandbox (1)
The thermal physical property parameter of backfilling material in interior sand and/or drilling；
Step 7：Step 6 is compared with the thermal physical property parameter that step 3 is calculated, to demarcate live thermal property tester
Inside carries instrument.
10. live thermal property tester scaling method as claimed in claim 9, it is characterised in that before opening water circulating pump (6)
Spray equipment (12) is also opened, for the field calibration under seepage flow scene.
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| CN201710888426.9A CN107525821A (en) | 2017-09-27 | 2017-09-27 | Live thermal property tester caliberating device and method |
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