CN206378220U - The acquisition device of pipeline hull-skin temperature - Google Patents
The acquisition device of pipeline hull-skin temperature Download PDFInfo
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- CN206378220U CN206378220U CN201621484182.5U CN201621484182U CN206378220U CN 206378220 U CN206378220 U CN 206378220U CN 201621484182 U CN201621484182 U CN 201621484182U CN 206378220 U CN206378220 U CN 206378220U
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Abstract
The utility model discloses a kind of acquisition device of pipeline hull-skin temperature.The acquisition device of the pipeline hull-skin temperature includes：Measurement apparatus, is in contact with pipeline outer surface, measurement temperature and external environment condition data for measuring pipeline outer surface；Harvester, is connected with measurement apparatus, the true temperature for obtaining pipeline outer surface according to measurement temperature and external environment condition data under the first default processing model；Carrying vehicle, for carrying measurement apparatus and harvester.By the utility model, the effect for improving the accuracy that pipeline hull-skin temperature is obtained has been reached.
Description
Technical field
The utility model is related to petrochemical industry, in particular to a kind of acquisition device of pipeline hull-skin temperature.
Background technology
At present, the insulation of pipeline is the important engineering problem of industrial equipment.Such as, Xinjiang Oilfield Company has steam injection pipe at present
Line about 800km, while being played an important role in oil-field thick-oil exploitation, the energy consumption problem that it is produced is very huge, viscous crude
Thermal recovery pipeline heat insulation effect directly affects the recovery ratio and oil field production total energy consumption of crude oil.The insulation of pipeline is commonly configured with protecting
The external thermal insulation of warm layer, the either inside holding of pipeline or pipeline, the quality of heat insulation effect is all influence Business Economic Benefit
One important indicator.
A large amount of heavy crude heat extraction pipelines are used in petroleum industry, these heavy crude heat extraction pipelines are uninterrupted length in the process of running
Run periodically, general insulation detection means is difficult to the temperature and radiation loss value for accurately drawing pipeline outer surface.It is infrared
Detection means hand propelled or other maneuver modes mainly at ground carry out In-service testing, and current thermal infrared imager is used to survey
Determine Industrial Boiler surface heat radiating loss, but apply to process structure complicated machinery, and do not provide specific calculating radiating
The mathematical modeling of loss, does not refer to how hull-skin temperature obtains exactly yet.The temperature of infrared radiation thermometer measuring target point, no
The measurement in face is can relate to, causes the acquisition accuracy of pipeline hull-skin temperature low.
The problem of accuracy obtained for pipeline hull-skin temperature in the prior art is low, not yet proposes effective solution at present
Certainly scheme.
Utility model content
Main purpose of the present utility model is to provide a kind of acquisition device of pipeline hull-skin temperature, at least to solve pipe
The problem of accuracy that line hull-skin temperature is obtained is low.
To achieve these goals, according to one side of the present utility model there is provided a kind of measurement apparatus, outside the pipeline
The acquisition device of surface temperature includes：Measurement apparatus, is in contact with pipeline outer surface, the measurement temperature for measuring pipeline outer surface
Degree and external environment condition data；Harvester, is connected with measurement apparatus, for warm according to measurement under the first default processing model
Degree and external environment condition data obtain the true temperature of pipeline outer surface；Carrying vehicle, for carrying measurement apparatus and harvester.
Further, the measurement apparatus includes：Thermal infrared imager, is connected with harvester, for measuring pipeline appearance
Measurement temperature on the given cross-sectional in face.
Further, the external environment condition data include the solar radiation heat flow that pipeline outer surface is received, measurement apparatus bag
Include：Radiant heat flux sensor, is contacted with pipeline outer surface, for measuring solar radiation heat flow.
Further, the external environment condition data include the temperature of external environment condition residing for pipeline outer surface, and measurement apparatus includes：
First surface thermometer, is arranged at the pre-determined distance of pipeline outer surface, the temperature for measuring external environment condition.
Further, external environment condition data include the wind speed of external environment condition residing for pipeline outer surface, and the measurement apparatus is also wrapped
Include：Anemobiagraph, is arranged on carrying vehicle, the wind speed for measuring external environment condition residing for pipeline outer surface.
Further, the harvester is additionally operable under the second default processing model according to true temperature, external environment condition
The wind speed of temperature and external environment condition obtains the radiation loss value of pipeline outer surface.
Further, the harvester includes：Data collecting instrument, is connected with measurement apparatus, for recording measurement temperature
With external environment condition data.
Further, the harvester also includes：Computer, is connected with data collecting instrument, for by measurement temperature and
External environment condition data are true temperature according to the first default processing model treatment.
Further, the carrying vehicle includes：Support base；Telescopic lever frame, is connected with support base, for mobile branch
Support base.
Further, the harvester includes：Second surface thermometer, is contacted with pipeline outer surface, for measuring pipeline
The true temperature of the target point of the predetermined number of outer surface.
Further, the second surface temperature is calculated as surface temperature sensor, the probe and target of surface temperature sensor
Point passes through heat-conducting glue adhesion.
By the utility model, using measurement apparatus, it is in contact with pipeline outer surface, the survey for measuring pipeline outer surface
Amount temperature and external environment condition data；Harvester, is connected with measurement apparatus, under the first default processing model according to survey
Amount temperature and external environment condition data obtain the true temperature of pipeline outer surface；Carrying vehicle, is filled for carrying measurement apparatus and collection
Put, due to being adapted to the change of a variety of external environment condition data by having incorporated the preset model of external environment condition data to obtain pipe
The true temperature of line outer surface, solve pipeline hull-skin temperature acquisition accuracy it is low the problem of, and then reached raising pipe
The effect for the accuracy that line hull-skin temperature is obtained.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing further understanding to of the present utility model, of the present utility model
Schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.In accompanying drawing
In：
Fig. 1 is a kind of schematic diagram of the acquisition device of pipeline hull-skin temperature according to the utility model embodiment；And
Fig. 2 is the schematic diagram of the acquisition device of another pipeline hull-skin temperature according to the utility model embodiment.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
1st, support base；2nd, telescopic lever frame；3rd, thermal infrared imager；4th, anemobiagraph；5th, land surface pyrometer；6th, industry control is calculated
Machine；7th, data collecting instrument；8th, radiant heat flux sensor；9th, hot insulated line.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order that those skilled in the art more fully understand application scheme, below in conjunction with the embodiment of the present application
Accompanying drawing, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application part, rather than whole embodiments.Based on the embodiment in the application, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model of the application protection
Enclose.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to embodiments herein described herein.In addition, term " comprising " and " tool
Have " and their any deformation, it is intended that covering is non-exclusive to be included, for example, containing a series of system of units, production
Product or equipment are not necessarily limited to those units clearly listed, but may include not list clearly or for these products
Or the intrinsic other units of equipment.
Embodiment 1
The utility model embodiment provides a kind of acquisition device of pipeline hull-skin temperature.
Fig. 1 is a kind of schematic diagram of the acquisition device of pipeline hull-skin temperature according to the utility model embodiment.Such as Fig. 1
Shown, the acquisition device of the pipeline outer surface includes：Measurement apparatus 10, harvester 20 and carrying vehicle 30.
Measurement apparatus 10, is in contact with pipeline outer surface, measurement temperature and external environment condition for measuring pipeline outer surface
Data.
Pipeline outer surface can be hot insulated line outer surface, in outdoor environment, such as, the pipeline field measurement in field
In.Measurement apparatus 10 is in contact with pipeline outer surface, alternatively, and the measurement apparatus 10 passes through outside radiant heat flux sensor and pipeline
Surface is contacted, wherein, radiant heat flux sensor and the target point joint on pipeline outer surface connect for measuring pipeline outer surface
The solar radiation heat flow of receipts.The measurement apparatus 10 is used for the measurement temperature for measuring pipeline outer surface, the measurement temperature and pipeline
There is certain error in the true temperature of outer surface.Alternatively, by the measurement temperature of infrared heat image instrument measuring pipeline outer surface,
The thermal infrared imager can measure the temperature on the section of a pipeline outer surface one, compared to land surface pyrometer and infrared radiation thermometer
It is limited to the limitation of the temperature survey to point, the scope that the measurement apparatus can measure the measurement temperature of pipeline outer surface is more than table
The scope of the measurement temperature of surface thermometer and infrared radiation thermometer measurement measurement pipeline outer surface, thus avoid land surface pyrometer and
The deficiency for the temperature that infrared radiation thermometer must be appeared by the temperature of measurement point, and then improve pipeline outer surface measuring temperature
Accuracy.
Measurement apparatus 10 can be also used for measuring the external environment condition data of the external environment condition residing for pipeline outer surface, outside this
The accuracy of the temperature survey of environmental data influence pipeline outer surface, can include the wind of external environment condition residing for pipeline outer surface
The external environment condition data such as speed, solar radiation heat flow, ambient air temperature, wherein, the wind speed of external environment condition can pass through wind speed
Instrument measurement is obtained, and solar radiation heat flow can be obtained by radiant heat flux sensor measurement, including not spoke in the same time in one day
Heat flow is penetrated, ambient air temperature can be obtained by land surface pyrometer measurement, within a certain period of time can be approximately constant.
Harvester 20, is connected with measurement apparatus 10, under the first default processing model according to measurement temperature and
External environment condition data obtain the true temperature of pipeline outer surface.
Harvester 20 is connected with measurement apparatus 10, for obtaining measurement temperature and the outside that measurement apparatus 10 is collected
Environmental data.First preset model has preset relation for true temperature, measurement temperature, the external environment condition data of pipeline outer surface
Equation of heat balance, the true of pipeline outer surface can be obtained according to the first preset model by measurement temperature, external environment condition data
Real temperature, or approximate true temperature, so as to incorporate influence factor of the external environment condition to the temperature of pipeline outer surface, are improved
The accuracy that pipeline hull-skin temperature is obtained.
Alternatively, harvester 20 gathers measurement temperature and external environment condition that measurement apparatus 10 is measured by data collecting instrument
Data, calculate obtaining pipeline outer surface according to the first preset model by computer to measurement temperature and external environment condition data
True temperature, improve pipeline hull-skin temperature acquisition accuracy.
Carrying vehicle 30, for carrying measurement apparatus 10 and harvester 20.
Carrying vehicle 30 includes support base, and the support base is used to carry measurement apparatus 10 and harvester 30, the carrying
Car can also include telescopic lever, and the acquisition device of user's hand pushing movable pipeline outer surface can be made by telescopic lever, is carried
The high flexibility of the deployment of the acquisition device of the pipeline outer surface, so it is user-friendly, it is more suitable for field operation, reduces
The limitation that the acquisition device of pipeline outer surface is used.
The embodiment is in contact by measurement apparatus 10 with pipeline outer surface, the measurement temperature of measurement pipeline outer surface and outer
The measurement data of portion's ambient parameter；It is connected by harvester 20 with measurement apparatus 10, the root under the first default processing model
The true temperature of pipeline outer surface is obtained according to measurement temperature and measurement data；Measurement apparatus is carried by carrying vehicle 30 and collection is filled
Put, due to being adapted to the change of a variety of external environment condition data by having incorporated the preset model of external environment condition data to obtain pipe
The true temperature of line outer surface, solve pipeline hull-skin temperature acquisition accuracy it is low the problem of, and then reached raising pipe
The effect for the accuracy that line hull-skin temperature is obtained.
Alternatively, the measurement apparatus includes：Thermal infrared imager, is connected with harvester, for measuring pipeline outer surface
Given cross-sectional on measurement temperature.
Measurement apparatus includes thermal infrared imager, and the thermal infrared imager is connected with harvester, for measuring pipeline appearance
Measurement temperature on the default interface in face, and measurement temperature is transmitted to harvester.Alternatively, thermal infrared imager is used to measure
Temperature at the target point of pipeline outer surface, opens thermal infrared imager debugging Inside Parameter Value, and the Inside Parameter Value includes environment
Between temperature, radiance, measuring distance etc., the target point in angle and default interface by adjusting thermal infrared imager away from
From making thermal infrared imager alignment target point, obtain the Infrared Thermogram of target point, and Infrared Thermogram is transferred into computer
On, by computer according to the temperature value at Infrared Thermogram record target point, so that facilitate the collection of pipeline hull-skin temperature,
The temperature of measurement pipeline outer surface in pipeline field in the wild is applicable simultaneously.
Alternatively, external environment condition data include the solar radiation heat flow that pipeline outer surface is received, and the measurement apparatus includes：
Radiant heat flux sensor, is contacted with pipeline outer surface, for measuring solar radiation heat flow.
Measurement apparatus can include radiant heat flux sensor, and the radiant heat flux sensor can be solar radiation device, with pipe
Line outer surface is contacted, for measuring the solar radiation heat flow that pipeline outer surface is received.Such as, radiant heat flux sensor and pipe
Target point on given cross-sectional on line outer surface is in close contact, and is measured and is recorded not pipeline outer surface reception in the same time in one day
The solar radiation heat flow arrived.Measurement temperature is calculated according to the first preset model with reference to solar radiation heat flow, obtained
The true temperature of pipeline outer surface, so as to adapt to the change of a variety of external environment condition parameters, improves the acquisition of pipeline hull-skin temperature
Accuracy.
Alternatively, external environment condition data include the temperature of external environment condition residing for pipeline outer surface, and the measurement apparatus includes：The
One land surface pyrometer, is arranged at the pre-determined distance of pipeline outer surface, the temperature for measuring external environment condition.
The external environment condition data that measurement apparatus is collected include the temperature of external environment condition residing for pipeline outer surface, can pass through
First surface thermometer measures ambient temperature.The first surface thermometer can be placed on apart from the default of pipeline outer surface
At distance, such as, the position at 2 meters from pipeline outer surface is placed on, to determine ambient outdoor air temperature, alternatively, this
One land surface pyrometer can be also used for measuring the true temperature of the target point of pipeline outer surface.According to the temperature of external environment condition to surveying
Amount temperature is calculated according to the first preset model.Alternatively, with reference to solar radiation heat flow, the temperature of external environment condition to measurement
Temperature is calculated according to the first preset model, obtains the true temperature of pipeline outer surface, so as to adapt to a variety of external environment condition ginsengs
Several changes, improves the accuracy of pipeline hull-skin temperature acquisition.
Alternatively, external environment condition data include the wind speed of external environment condition residing for pipeline outer surface, and measurement apparatus also includes：Wind
Fast instrument, is arranged on carrying vehicle, the wind speed for measuring external environment condition residing for pipeline outer surface.
The external environment condition data that measurement apparatus is collected include the wind speed of external environment condition residing for pipeline outer surface, that is, surveying
Test tube line outer surface wind speed, can be measured by anemobiagraph.The anemobiagraph can be placed on carrying vehicle, and monitoring wind speed is big in real time
The tendency of small and wind direction.Measurement temperature is calculated according to the first preset model according to the wind speed of external environment condition, so as to obtain
The true temperature of pipeline outer surface.Alternatively, with reference to solar radiation heat flow, the temperature of external environment condition, external environment condition wind speed
Measurement temperature is calculated according to the first preset model, the true temperature of pipeline outer surface is obtained, so as to adapt to a variety of outsides
The change of ambient parameter, improves the accuracy of pipeline hull-skin temperature acquisition.
Alternatively, harvester is additionally operable under the second default processing model according to true temperature, the temperature of external environment condition
The radiation loss value of pipeline outer surface is obtained with the wind speed of external environment condition.
Harvester according to measurement temperature and external environment condition data under the first default processing model except for obtaining pipe
Outside the true temperature of line outer surface, it can be also used for according to the true temperature of pipeline outer surface, the temperature of external environment condition and outer
The wind speed of portion's environment obtains the heat loss value of pipeline outer surface according to the second preset model, wherein, the wind speed of external environment condition is used for
Calculate convection transfer rate.Alternatively, the heat loss value is unit area pipeline outer surface radiation loss, can be by heat convection
The difference of heat flow density and radiation heat transfer heat flow density is obtained.
, can be according to pipeline exterior surface area and Time Calculation outlet pipe after the radiation loss value of pipeline outer surface is obtained
Line monthly or annual radiation loss amount, so as to take counter-measure in time.
Alternatively, harvester includes：Data collecting instrument, is connected with measurement apparatus, for recording measurement temperature and outer
Portion's environmental data.
Harvester, is connected with measurement apparatus, and the survey that measurement apparatus measurement is obtained can be received by signal transmssion line
Amount temperature and external environment condition data, are obtained outside pipeline under the first default processing model according to measurement temperature and external environment condition data
The true temperature on surface.The harvester includes data collecting instrument, can be connected with measurement apparatus by signal transmssion line, connect
Receive the obtained measurement temperature of measurement apparatus measurement and external environment condition data and record automatically, it is achieved thereby that the collection to data.
Alternatively, the harvester also includes：Computer, is connected with data collecting instrument, for by measurement temperature and outside
Portion's environmental data is true temperature according to the first default processing model treatment.
Harvester can also include computer, the computer can be industry control meter in addition to including data collecting instrument
Calculation machine, is connected with data collecting instrument, for measurement temperature and external environment condition data to be processed as into pipe according to the first preset model
The true temperature and record of line outer surface.
Alternatively, the carrying vehicle includes：Support base；Telescopic lever frame, is connected with support base, for mobile support
Base.
Carrying vehicle is used to carry measurement apparatus and harvester, can be the dolly of hand pushing movable.The carrying vehicle includes branch
Base is supportted, measurement apparatus and harvester are carried by support base.The carrying vehicle, can be with addition to including support base
Including telescopic lever frame, it can elongate, receive short, for moving support base.
Alternatively, the harvester includes：Second surface thermometer, is contacted with pipeline outer surface, for measuring outside pipeline
The true temperature of the target point of the predetermined number on surface.
The harvester can also include second surface thermometer, pipeline outer surface is attached to, for measuring given cross-sectional
Target point true temperature value, the true temperature of target point is transmitted to data collecting instrument by signal transmssion line carry out it is automatic
Record.Alternatively, the true temperature of target point can be used for amendment under the first preset model according to measurement temperature and external rings
Border data obtain the true temperature of pipeline outer surface, improve the accuracy of pipeline hull-skin temperature acquisition.
Alternatively, the second surface temperature is calculated as surface temperature sensor, the probe and target point of surface temperature sensor
Pass through heat-conducting glue adhesion.
Second surface thermometer can be surface temperature sensor, and the probe of surface temperature sensor should be abundant with target point
Contact, it is possible to use its adhesion is consolidated and air-dried more than 20 minutes by heat-conducting glue, so that the true temperature of accurate measuring target point.
The measurement apparatus of the utility model includes thermal infrared imager, anemobiagraph, land surface pyrometer, radiant heat flux sensor,
Harvester includes data collecting instrument, industrial computer.Local environment wind speed is tested by anemobiagraph, can by land surface pyrometer
To draw true temperature value at ambient temperature value and hot insulated line outer surface target point, pass through radiant heat flux sensor record one
Not radiant heat flux value in the same time in it.Adjust the angle of thermal infrared imager and the distance between with tested target point, be directed at mesh
Punctuate, obtains Infrared Thermogram and is transferred on computer, the temperature value at the target point of record thermal imaging system measurement.The embodiment
The pipeline field that the acquisition device of line hull-skin temperature is applied to field is measured, can be to having wind and solar radiation weather can be with
Monitored in real time, measurement show that model of the substantial amounts of database with having set up is combined outside the pipeline that can be drawn not in the same time
Surface true temperature value and different time sections, the radiation loss value of Various Seasonal.
The embodiment has been effectively shielded from emissivity in thermal imaging system and has been difficult to determination problem, and solar radiation hot-fluid is carried from setting up
The mathematical modeling of amount is set out, and draws the true temperature calculation formula under thermal infrared imager, while the experimental provision built can be fitted
The change of a variety of external environment condition parameters is answered, while be capable of accurate quick draws pipeline hull-skin temperature and radiation loss.
Embodiment 2
The technical solution of the utility model is illustrated with reference to preferred embodiment.
The utility model proposes a kind of outdoor acquisition pipeline hull-skin temperature, the device of radiation loss, the device includes：
Carrying vehicle, measurement apparatus system, data acquisition recording device.Wherein, carrying vehicle includes support base and telescopic lever frame；Measurement
Apparatus system includes thermal infrared imager, anemobiagraph, land surface pyrometer, radiant heat flux sensor；Data acquisition recording device includes
Data collecting instrument, industrial computer.
The outdoor acquisition pipeline hull-skin temperature of the embodiment, the experimental provision of radiation loss test local using anemobiagraph
Ambient wind velocity, the true temperature at ambient temperature value and hot insulated line outer surface target point can be drawn by land surface pyrometer
Value, solar radiation device have recorded in one day not radiant heat flux value in the same time.Adjust the angle and and measured target of thermal infrared imager
Point distance, is directed at measured target point, obtains Infrared Thermogram and is transferred on computer, at the target point of record thermal imaging system measurement
Temperature value.The device is conveniently used in the pipeline field measurement in field, can be to having wind and solar radiation weather to carry out
Monitoring in real time, measurement, which show that model of the substantial amounts of database with having set up is combined, can show that pipeline outer surface not in the same time is true
Real temperature value and different time sections, the radiation loss value of Various Seasonal.
The utility model is effectively shielded from emissivity in thermal imaging system and is difficult to determination problem, from number of the foundation with solar radiation
Learn model set out, draw the true temperature calculation formula under infrared temperature-test technology, at the same the experimental provision built be adapted to it is many
The change of kind of external environment condition data, while be capable of accurate quick draws pipeline hull-skin temperature and radiation loss.
Fig. 2 is the schematic diagram of the acquisition device of another pipeline hull-skin temperature according to the utility model embodiment.Such as
Shown in Fig. 2, the acquisition device of the pipeline hull-skin temperature includes：Support base 1, telescopic lever frame 2, thermal infrared imager 3, wind speed
Instrument 4, land surface pyrometer 5, industrial computer 6, data collecting instrument 7 and radiant heat flux sensor 8.
The acquisition device of the pipeline hull-skin temperature is used for the pipeline hull-skin temperature for obtaining hot insulated line 9.
The acquisition device of the pipeline hull-skin temperature of the embodiment includes：Carrying vehicle, measurement apparatus system and data acquisition
Tape deck.Wherein, carrying vehicle is made up of support base 1 and the two parts of telescopic lever frame 2, and measurement apparatus system includes infrared heat
As instrument 3, anemobiagraph 4, land surface pyrometer 5 and radiant heat flux sensor 8.Data acquisition recording device includes the He of industrial computer 6
The main body measured in data collecting instrument 7, outdoor background environment is hot insulated line 9.Some section of selected hot insulated line outer surface,
And three tested target points are equally spacedly demarcated in section, hot insulated line outer surface target point is measured by thermal infrared imager 3
The temperature at place, the solar radiation heat flow that pipeline outer surface is received is measured by radiant heat flux sensor 8, and land surface pyrometer 5 is put
The air themperature of outdoor environment can be determined by putting the position at from pipeline outer surface 2m, while can also be labelled to land surface pyrometer
At tested heat insulation material surface, the true temperature value of target point is measured.Radiant heat flux sensor 8, land surface pyrometer 5 are gathered
Data are connected to the record automatically of data collecting instrument 7 by signal transmssion line, wherein, data collecting instrument 7 is connected with industrial computer 6
Connect.
Equation of heat balance between thermal infrared imager and pipeline outer surface and surrounding environment is set up, outlet pipe is derived by the equation
Line hull-skin temperature and radiation loss theoretical model.
Pipeline outer surface true temperature T is as follows：
εσT0 4=ε σ T4+ρ(I+εσTsky 4),
Wherein, ε is pipeline external surface emissivity；
σ is Boltzmann constant, and its value is 5.67 × 10-8W/ (m2.K4)；
T0For the temperature at the pipeline external surface target point under infrared heat image instrument measuring；
T is the true temperature at pipeline external surface target point；
ρ is reflectivity；
I is solar radiation heat flow；
TskyFor sky temperature.
The radiation loss of pipeline outer surface is as follows：
qs=qd-qf,
Wherein：qdFor heat convection heat flow density；
qfFor radiation heat transfer heat flow density；
qsFor unit area pipeline outer surface radiation loss.
qs=αcr(t-tk)-εσ[T4-Tk 4],
Wherein, αcrFor convection transfer rate；
T, T are the true temperature at the target point of pipeline outer surface, wherein, t is that Celsius temperature, T are Fahrenheit temperature；
tk、TkThe ambient air temperature pointed out for pipeline outer surface target, wherein, tkFor Celsius temperature, TkFor Fahrenheit temperature
Degree.
Convection transfer rate empirical equation is as follows：
Wherein, ω is pipeline outer surface wind speed.
For outdoor acquisition pipeline hull-skin temperature, the acquisition of radiation loss, its specific implementation process is as follows：
A section is chosen at 1m in hot insulated line outer surface, each section can averagely choose three target points.
It is to have wind fine day and the early, middle and late period in calm fine day in the period specifically tested.It is true at measuring target point
During temperature value, the probe of surface temperature sensor is fully contacted with target point, it is possible to use its adhesion is consolidated and air-dried by heat-conducting glue
More than 20min.Radiant heat flux sensor is also in close contact with target point.In order to measure the radiation that real pipeline outer surface is received
Heat flow value, anemobiagraph is placed on carrying vehicle, so that monitoring wind speed size and the tendency of wind direction in real time.Open infrared thermal imagery
Instrument debugs Inside Parameter Value, such as, environment temperature, radiance, measuring distance etc., adjustment angle alignment target point are measured,
Most at last the data record data Acquisition Instrument of all surveys and preserve into industrial computer.
In data acquisition recording device, by above-mentioned measurement data is by the temperature calculation models of pipeline outer surface and dissipates
Heat loss model, so as to obtain the temperature of pipeline outer surface exactly, and pipeline outer surface radiating heat flow density, further according to
Radiating heat flow density can go out pipeline monthly or annual radiation loss value according to the surface area of hot insulated line and Time Calculation.
The outdoor acquisition pipeline hull-skin temperature, the core of the experimental provision of radiation loss are that harvester is set up outside pipeline
Surface true temperature and radiation loss computation model.The true temperature model take into account the influence of solar radiation, radiation loss
The influence of wind speed is added in computation model, for plateau is windy, sunshine-duration longer region has good practical significance.Should
The tested hot insulated line in outdoor is made up of three parts, from the inside to the outside respectively working steel tube layer, polyurethane insulation coating and galvanized iron sheet
Layer.Radiant heat flux sensor is placed in galvanized iron sheet outer surface, the sensor heat flux measurement scope is 0~1000W/m2, together
When outer surface arrange temperature sensor.Selected in tested pipeline outer surface at certain three section, section and averagely demarcate three
Measured target point, adjusts thermal infrared imager inner parameter and with measured target point section into 900 deflections, finally preserves and remember
The tested experimental data of record, improves the accuracy of DATA REASONING.
The carrying vehicle of the embodiment is made up of support base and telescopic lever frame；Local environment wind is tested by anemobiagraph
Speed, can draw true temperature value at ambient temperature value and hot insulated line outer surface target point, by too by land surface pyrometer
Not radiant heat flux value in the same time during positive radiator is recorded one day, by adjust thermal infrared imager angle and with measured target point away from
From, measured target point is directed at, Infrared Thermogram is obtained and is transferred on computer, the temperature at record thermal imaging system measuring target point
Value, so as to thering is wind and solar radiation weather to be monitored in real time, obtain accurately and quickly pipeline outer surface temperature
Degree, radiation loss value, for evaluating heat insulation effect, optimize thermal-insulating scheme, reduction production power consumption tool is of great significance.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (11)
1. a kind of acquisition device of pipeline hull-skin temperature, it is characterised in that including：
Measurement apparatus, is in contact with pipeline outer surface, measurement temperature and external environment condition number for measuring the pipeline outer surface
According to；
Harvester, is connected with the measurement apparatus, under the first default processing model according to the measurement temperature and
The external environment condition data obtain the true temperature of the pipeline outer surface；
Carrying vehicle, for carrying the measurement apparatus and the harvester.
2. device according to claim 1, it is characterised in that the measurement apparatus includes：Thermal infrared imager, is adopted with described
Acquisition means are connected, the measurement temperature on given cross-sectional for measuring the pipeline outer surface.
3. device according to claim 1, it is characterised in that the external environment condition data connect including the pipeline outer surface
The solar radiation heat flow of receipts, the measurement apparatus includes：Radiant heat flux sensor, contacts with the pipeline outer surface, is used for
Measure the solar radiation heat flow.
4. device according to claim 1, it is characterised in that the external environment condition data include the pipeline outer surface institute
Locate the temperature of external environment condition, the measurement apparatus includes：First surface thermometer, is arranged on apart from the pre- of the pipeline outer surface
If at distance, the temperature for measuring the external environment condition.
5. device according to claim 4, it is characterised in that the external environment condition data include the pipeline outer surface institute
Locate the wind speed of external environment condition, the measurement apparatus also includes：Anemobiagraph, is arranged on the carrying vehicle, for measuring the pipe
The wind speed of external environment condition residing for line outer surface.
6. device according to claim 5, it is characterised in that the harvester is additionally operable in the second default processing model
The lower wind speed according to the true temperature, the temperature of the external environment condition and the external environment condition obtains the pipeline outer surface
Radiation loss value.
7. device according to claim 1, it is characterised in that the harvester includes：Data collecting instrument, is surveyed with described
Amount device is connected, for recording the measurement temperature and the external environment condition data.
8. device according to claim 7, it is characterised in that the harvester also includes：Computer, with the data
Acquisition Instrument is connected, for the measurement temperature and the external environment condition data to be preset into processing model treatment according to described first
For the true temperature.
9. device according to claim 1, it is characterised in that the carrying vehicle includes：
Support base；
Telescopic lever frame, is connected with the support base, for moving the support base.
10. device according to claim 1, it is characterised in that the harvester includes：Second surface thermometer, with
The pipeline outer surface contact, the true temperature of the target point of the predetermined number for measuring the pipeline outer surface.
11. device according to claim 10, it is characterised in that the second surface temperature is calculated as surface temperature sensing
Device, the probe of the surface temperature sensor passes through heat-conducting glue adhesion with the target point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843348A (en) * | 2017-12-14 | 2018-03-27 | 东方电气集团东方锅炉股份有限公司 | A kind of heat dump energy-flux density measurement apparatus and measuring method |
| 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843348A (en) * | 2017-12-14 | 2018-03-27 | 东方电气集团东方锅炉股份有限公司 | A kind of heat dump energy-flux density measurement apparatus and measuring method |
| CN107843348B (en) * | 2017-12-14 | 2023-05-30 | 东方电气集团东方锅炉股份有限公司 | Device and method for measuring energy flow density of heat absorber |
| 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 |
| CN115901020B (en) * | 2023-01-09 | 2023-10-20 | 江苏龙英管道新材料有限公司 | Heat dissipation measuring device and measuring method for heat preservation pipeline |
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