CN107389727A - A kind of Frozen Ground Area heat pipe floor data detection means based on temperature differential method - Google Patents
A kind of Frozen Ground Area heat pipe floor data detection means based on temperature differential method Download PDFInfo
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- CN107389727A CN107389727A CN201710588133.9A CN201710588133A CN107389727A CN 107389727 A CN107389727 A CN 107389727A CN 201710588133 A CN201710588133 A CN 201710588133A CN 107389727 A CN107389727 A CN 107389727A
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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
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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Abstract
The present invention relates to a kind of Frozen Ground Area heat pipe floor data detection means based on temperature differential method, the detection means includes protection shell（1）, it is located at protection shell（1）Internal infrared temperature sensor（2）, internal thermometer（3）And data storage（4）, it is located at protection shell（1）Outside external thermometer（5）And it is located at protection shell（1）On fixator, fixator is used to the detection means being fixed on heat pipe（9）On；Protect shell（1）Upper and infrared temperature sensor（2）The position of detection direction face offers detection hole（6）.The present invention establishes semi-open, semienclosed detection environment and employs test technique automatic, its application can ensure the accuracy of testing result, the operating efficiency of detection is improved, and then cracks the detection crucial problem of transmission line of electricity heat pipe, maintenance engineering safety and stability.
Description
Technical field
The present invention relates to frozen soil engineering testing techniques of equipment field, more particularly to a kind of Frozen Ground Area heat based on temperature differential method
Plumber's condition data detection device.
Background technology
Frozen soil refers to there is subzero temperature and the soil body and rock containing ice, and China's frozen soil area is mainly distributed on Qinghai-Tibet Platean, east
The area such as northern Xing'anling mountains and Tianshan Mountains, Altai Mountains.With the continuous quickening of national economic development, these Special sections exist
Constantly build various means of transportation, such as national major project of Qinghai-Tibet Highway, Qinghai-Tibet Railway.
Due to the presence of ever-frozen ground and Thick Underground Ice so that Permafrost Area transmission line of electricity column foot stability of foundation has
There is great uncertainty：With the change of external environment, in frozen soil the thawing of ice body can cause the rapid deterioration of column foot foundation,
Safe operation and long-time stability to column foot produce material impact.To avoid this kind from influenceing, it will usually laid around column foot
A number of heat pipe is so as to safeguarding the stability of column foot.
A kind of vapour of heat pipe, the heat-conducting system of liquid two-phase convection circulation, it is the steel pipe of a sealing vacuum, and the inside is filled with
The liquid and gaseous working medium of highly volatile（Such as nitrogen, freon, propane, CO2）, upper end is the gelled radiating of installation
Section, lower end is endotherm section.Using when, frozen soil that the insertion of the endotherm section of heat pipe is needed to cool.When environment temperature is radiating segment
When temperature is less than underground endotherm section temperature, heat pipe is started working and is in heat conduction state, and the heat in foundation soil is constantly dissipated
Send out and cool down the soil body.
It can be seen that heat pipe is making, any slight flaws during installation and use or impaired can all cause internal working medium
Leakage, and then the task performance for influenceing heat pipe is even scrapped.Therefore, detect whether heat pipe working condition is normally an important work
Make.In existing detection means, generally it is required for testing staff to hold instrument to the collection later stage point in front of the heat pipe to work
Data needed for analysis, and the working hour of heat pipe is generally the cool night temperatures environment in winter, daytime is by solar radiation, heat pipe heat radiation section
Heat absorption heats up and is stopped.I.e.：Wanting to obtain effective floor data, the detection period limits to night in the winter time, regardless of whether
It is the expansion that the low temperature in winter or the dark at night are all unfavorable for detecting work；In addition, by environment temperature, wind speed, solar heat
The influence and interference of all many conditions such as radiation, plus different heat pipe service behaviours and the difference of state, tube surface temperature, radiation
The stability of temperature and it can all occur largely to change with the difference of environment temperature.These all opposite heat tube thermal parameters,
The measurement of working condition causes bigger difficulty so that testing result error that post analysis obtains is big, precision is low.
For example for the heat pipe of transmission line of electricity column foot, there is following difficulty in the expansion of its floor data detection work：
1st, compared with the linear engineerings such as highway, railway, transmission line of electricity column foot is typically erected at inclined apart from highway certain distance or comparison
Remote unfrequented position, under the conditions of the extremely cold area such as Qinghai-Tibet Platean, road is difficult, and particularly night is even more and is difficult to
Reach, waste time and energy.2nd, night sight is limited is unfavorable for accurately searching out heat pipe：（1）Iron tower of power transmission line, heat pipe are metal material
Material, and heat pipe is embedded close to column foot foundation, with electric power line pole tower in observation visual line of sight it is overlapped, cause serious dry
Disturb；（2）Under the conditions of at midnight, temperature is too low, tower material, heat pipe metal material show as identical thermal infrared property, can not use existing
There is method to be detected.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of Frozen Ground Area heat pipe floor data inspection based on temperature differential method
Device is surveyed, realizes the degree of accuracy for ensureing measurement data while automatic measurement heat pipe floor data, and then improves detection effect
The accuracy of rate and testing result.
To solve existing issue, a kind of Frozen Ground Area heat pipe floor data detection dress based on temperature differential method of the present invention
Put, the detection means includes protection shell, is located at infrared temperature sensor, the internal thermometer sum of the protection enclosure
According to memory, the external thermometer of the protection housing exterior and the fixator being located on the protection shell are located at, it is described
Fixator is used to the detection means being fixed on heat pipe；The data storage and the infrared temperature sensor, internal temperature
Degree meter is connected with the external thermometer, for recording and storing the measurement data from them；On the protection shell with
The position of the infrared temperature sensor detection direction face offers detection hole, so that the infrared temperature sensor is directly surveyed
Measure the tube wall temperature of the heat pipe.
Preferably, the protection upper lateral part of shell two offers heat emission hole.
Preferably, the fixator is specially to be located on the inside of the protection shell close to the magnetic of the heat pipe side.
The present invention has advantages below compared with prior art：
1st, the accuracy of testing result is high
（1）Establish a kind of new detection pattern
Heat pipe is metal circular tube, and its curved surface, metal fever are good to lead property etc., under the extreme natural conditions of Han Qu, all to its surface temperature
The accurate calibration tape of the thermal parameters such as degree, hot-fluid carrys out many difficulties.The present invention is semi-open, semiclosed using protecting shell to establish
The detection environment of formula so that detection is not by external environmental interference（Except external thermometer）, pass through high accuracy, thermal infrared temperature
Observation, preferably solves the temperature detection problems of metal surface, ensure that the degree of accuracy of measurement data；Meanwhile between protection shell
The effect of serving hot-fluid detection is connect, passes through comparative analysis of the later stage to internal and external temperature, you can know heat pipe in varying environment bar
Specific heat load under part.
（2）Ensure the complete and accurate of testing result
The present invention be provided with infrared temperature sensor and internal and external temperature meter, its can not only opposite heat tube tube wall temperature detected, moreover it is possible to
Housing internal and external environment temperature is detected, is so easy to the later stage to judge heat by the height of comparative analysis tube surface relative ambient temperature
Pipe working condition, further increase the accuracy and confidence level of the testing result that post analysis obtains.
, automatic detection break through it is existing detection the period limitation, improve operating efficiency
（1）Change heat pipe detection condition of work
The present invention is provided with fixator and data storage, detection means can be fixed on heat pipe on daytime, detection means energy
Carry out automatic measurement and measurement data record is got up, take again afterwards.It is manually close to compare night in the prior art
Autonomous test, man power and material is saved while ensureing that testing staff is safe.
（2）Crack the detection crucial problem of transmission line of electricity heat pipe, maintenance engineering safety and stability
The present invention uses touch sensor, can accomplish not damage heat pipe quick detection in the case where keeping heat pipe original state, during detection
Only detection means need to be fixed on tube surface.And due to present device small volume, in light weight, can largely it take
Band, therefore, multiple heat pipes can be detected simultaneously, fundamentally solve heat pipe once laying, it can not just be carried out accurately
The technical barrier detected on a large scale.
, the present invention integrate infrared, temperature detection, opposite heat tube is accurate, the detection that automates ensure that the later stage can be fast
Speed judges whether heat pipe exception occurs exactly, enabling is safeguarded or is changed to there is abnormal heat pipe in time, enters one
Transmission line of electricity column foot of step opposite heat tube protection etc. provides safeguard in the safe operation of the job facilities of Frozen Ground Area.
Brief description of the drawings
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the cross-sectional configuration schematic diagram of the present invention.
Fig. 2 is relative position schematic diagram of the present invention in application with tested heat pipe.
Fig. 3 is the stereoscopic schematic diagram of the present invention
In figure：1-protection shell, 2-infrared temperature sensor, 3-internal thermometer, 4-data storage, 5-outside warm
Degree meter, 6-detection hole, 7-heat emission hole, 8-magnetic, 9-heat pipe.
Embodiment
As shown in Fig. 1 ~ 3, a kind of Frozen Ground Area heat pipe floor data detection means based on temperature differential method, the detection means bag
Protection shell 1 is included, infrared temperature sensor 2, internal thermometer 3 and the data storage 4 being located inside protection shell 1, is located at
The fixator protected the external thermometer 5 outside shell 1 and be located on protection shell 1, for the detection means to be fixed on
On heat pipe 9.Infrared temperature sensor 2, internal thermometer 3 and external thermometer 5 are connected by transmission cable and data storage 4
Connect, the data each measured can be periodically transmitted to data storage 4 by them, are recorded and are protected by the data storage 4
Store away.
In use, detection means can be fixed on heat pipe 9 on daytime, allowing it, voluntarily perform detection works, by one
Such as second day daytime after automatic Observation after the section time, testing staff takes out the data of storage, in later stage room points
Analyse and judge the working condition of heat pipe.It is to be understood that those skilled in the art are by observing the measurement data taken out
It can interpolate that out that wherein which is effective floor data, i.e., heat pipe 9 is under work heat conduction state the data measured.
Protection shell 1 offers detection hole 6 close to the side of heat pipe 9, and the pipe of heat pipe 9 is detected for infrared temperature sensor 2
Wall temperature is used, and the tube wall of heat pipe 9 is in the opening position of detection hole 6 during use；Protection 1 liang of upper lateral part of shell offers radiating
Hole 7 so that whole device can be with ventilation and heat.During actual fabrication, protection shell 1 can be by PVC, opaque organic
Can the keep out wind and rain material of keeping off the sunshine such as glass or metal is made, for example, by the PVC board that thickness is 0.3mm be made 10cm ×
5cm × 3cm cuboid as protection shell 1, opened up in a 10cm × 5cm Middle face upper position length of side 1.5mm ×
1.5mm square holes are as detection hole 6, and in protection shell 1, remaining both sides opens up multiple circular apertures as heat emission hole 7.
Infrared temperature sensor 2 is located at the inside of protection the shell 1 remote side of heat pipe 9, the opening position of face detection hole 6, its
The detection direction of probe passes through the tube wall temperature of radiation modality direct detection heat pipe 9 during work towards heat pipe 9.
Fixator is specifically as follows the magnetic 8 for being located at the inner side of protection shell 1 close to the side of heat pipe 9, can fill detection
Overall absorption is put on the tube wall of heat pipe 9, is specifically as follows the four blocks of magnetic set up separately at the inner side of protection shell 1 four angles up and down
Iron.It is of course also possible to be set up separately protection shell 1 both sides bundle or other detection means can be integrally attached to heat pipe
Fixation object on 9.
In the assembling process of reality, internal thermometer 3 can be laid in and protect position top inside shell 1, one
As above infrared temperature sensor 2；External thermometer 5 is laid in the lower section outside protection shell 1；Finally by data storage
Device 4 is laid in the lowermost part inside protection shell 1, and it is passed through into transmission cable and infrared temperature sensor 2, internal temperature
Meter 3 is connected with external thermometer 5.
It can be seen that detection means of the present invention integrates infrared, temperature detection, possess easy to operate, quickly retracting, Ge Xiangjian
Continuous parameters, automatic Observation and other effects are surveyed,（1）Pass through the structure that semi-open, air-flow is relatively stable, lucifuge detection environment is sensing chamber
Build, high-precision Accurate Determining can be carried out to outer surface of metal pipe thermal infrared temperature；（2）By detecting protection shell 1 simultaneously
Internal temperature, external temperature, can be the analysis of heat release efficiency, working condition of the different heat pipes under varying environment temperature conditionss
Critical data is provided；（3）The present invention has the automatic record efficiency of detection data, can be according to setting, between progress different time
Every long-term record；（4）According to live overall, actual measurement big data network analysis, it is possible to establish different heat pipe work
The foundation of the determinating mode of character, and complete knowledge to different heat pipe working conditions according to the continuously record data of different heat pipes
Not and judge, supported so as to which the reparation and replacement of opposite heat tube provide data.
Claims (3)
- A kind of 1. Frozen Ground Area heat pipe floor data detection means based on temperature differential method, it is characterised in that：The detection means includes Protect shell（1）, it is located at the protection shell（1）Internal infrared temperature sensor（2）, internal thermometer（3）Deposited with data Reservoir（4）, it is located at the protection shell（1）Outside external thermometer（5）And it is located at the protection shell（1）On fixation Device, the fixator are used to the detection means being fixed on heat pipe（9）On；The data storage（4）With the infrared temperature sensor（2）, internal thermometer（3）With the external thermometer（5） It is connected, for recording and storing the measurement data from them；The protection shell（1）The upper and infrared temperature sensor （2）The position of detection direction face offers detection hole（6）, so that the infrared temperature sensor（2）It is hot described in direct measurement Pipe（9）Tube wall temperature.
- 2. detection means as claimed in claim 1, it is characterised in that：The protection shell（1）Two upper lateral parts offer radiating Hole（7）.
- 3. detection means as claimed in claim 1, it is characterised in that：The fixator is specially to be located at the protection shell （1）Inner side is close to the heat pipe（9）The magnetic of side（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710588133.9A CN107389727B (en) | 2017-07-19 | 2017-07-19 | Frozen soil area heat pipe working condition data detection device based on temperature difference method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710588133.9A CN107389727B (en) | 2017-07-19 | 2017-07-19 | Frozen soil area heat pipe working condition data detection device based on temperature difference method |
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| Publication Number | Publication Date |
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| CN107389727A true CN107389727A (en) | 2017-11-24 |
| CN107389727B CN107389727B (en) | 2023-09-01 |
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| CN201710588133.9A Active CN107389727B (en) | 2017-07-19 | 2017-07-19 | Frozen soil area heat pipe working condition data detection device based on temperature difference method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115901020A (en) * | 2023-01-09 | 2023-04-04 | 江苏龙英管道新材料有限公司 | Heat-insulation pipeline heat dissipation measuring device and measuring method |
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| CN107389727B (en) | 2023-09-01 |
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