CN208750191U - A kind of buried steam pipeline heat-insulation performance monitoring apparatus based on the measurement of online temperature - Google Patents
A kind of buried steam pipeline heat-insulation performance monitoring apparatus based on the measurement of online temperature Download PDFInfo
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- CN208750191U CN208750191U CN201821298177.4U CN201821298177U CN208750191U CN 208750191 U CN208750191 U CN 208750191U CN 201821298177 U CN201821298177 U CN 201821298177U CN 208750191 U CN208750191 U CN 208750191U
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- steel sleeve
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- fixed knot
- expansion joint
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Abstract
The utility model discloses a kind of buried steam pipeline heat-insulation performance monitoring apparatus based on the measurement of online temperature, including Buried Steam Pipe, on-line temperature monitoring system.Buried Steam Pipe includes main pipeline expansion joint and fixed knot, and main pipeline, expansion joint and fixed knot include instrumentation tubes, steel sleeve and insulating layer；Bellows is welded in the instrumentation tubes of expansion joint, the steel sleeve of fixed knot includes interior steel sleeve and outer steel sleeve pipe.Main pipeline, expansion joint instrumentation tubes and steel sleeve between by between steel sleeve side and the interior steel sleeve and outer steel sleeve pipe of fixed knot outer steel sleeve side be coaxially provided with sensor protection casing respectively.On-line temperature monitoring system includes temperature sensor and remote temperature monitoring terminal.The utility model realizes the measurement to buried pipeline global temperature by the arrangement mounting means of temperature sensor on solution underground pipe difference pipe fitting.
Description
Technical field
The utility model relates to heating steam pipe technology more particularly to a kind of buried steam based on the measurement of online temperature
Pipe insulation performance monitoring apparatus.
Background technique
Heat distribution pipeline is the basic component of heat distribution pipe network system, and the performance of heat distribution pipeline directly determines heat distribution pipe network system
The key characterization parameters such as energy consumption index, heat range of heat.Underground pipe exists extensively to one of the principal mode as heat distribution pipeline
Application.
It should be pointed out that due to the environment characteristics of the buried underground of underground pipe, it is likely that due to originals such as burn into immersions
Cause leads to insulating layer failure, even service pipe leakage explosion, and the performance and safety to therrmodynamic system all constitute very big prestige
The side of body, it is possible to cause great economic loss and undesirable social influence.In addition, due to buried underground, to its thermal insulation property
There are extreme difficulties for measurement.Therefore, how to realize that the efficient quick measurement of buried pipeline thermal insulation property becomes current heat distribution pipeline
The key content of system performance detection.
It can not achieve the measurement of non-blind area whole process temperature profile, Chinese patent for existing heat distribution pipeline
CN201711425052.3 is proposed by realizing in a kind of novel heat distribution pipeline of laying optical cable whole outside heat distribution pipeline
Measurement to whole temperature.Chinese patent CN201711424989.9 proposes the thermometric based on heat distribution pipeline and leaks hunting cable network,
The corresponding relationship for how passing through temperature change and/or noise disturbance signal using optical cable realized, by temperature and disturbance realization to pipeline
The monitoring of leakage loss.Nevertheless, the main deficiency of the prior art is to lack the cloth to the optical cable in heat distribution pipeline Building Model of Special Fittings
The design set, and the judgement to heat distribution pipeline thermal insulation property and damage characteristic how is realized by whole temperature profile.
Therefore, the characteristics of how being directed to underground pipe is realized and is measured the whole process of underground pipe temperature, and it is real to be based on temperature profile
The now accurate judgement to pipe insulation performance and leakage loss feature and positioning is the key that solve underground pipe performance maintenance.
Summary of the invention
In view of the above deficiencies, the utility model proposes a kind of buried steam pipeline heat-insulations based on the measurement of online temperature
It can monitoring device.
To achieve the above object, the utility model uses following technical scheme:
A kind of direct-buried steam pipeline heat-insulation performance monitoring apparatus based on the measurement of online temperature comprising Buried Steam Pipe,
On-line temperature monitoring system two parts；Buried Steam Pipe includes main pipeline, expansion joint and fixed knot, main pipeline, expansion joint and solid
Fixed section is welded to connect by series connection；Main pipeline, expansion joint and fixed knot include instrumentation tubes, steel sleeve and insulating layer；Instrumentation tubes
It is coaxially arranged with steel sleeve, and steel sleeve is nested in outside instrumentation tubes, and insulating layer is filled between instrumentation tubes and steel sleeve；
Bellows is welded in the instrumentation tubes of expansion joint；Steel sleeve in fixed knot includes interior steel sleeve and outer steel sleeve pipe, outer steel sleeve pipe
Coaxial nesting is installed on the outside of interior steel sleeve, and is also filled with insulating layer between the two；The instrumentation tubes of main pipeline and expansion joint
By steel sleeve side difference outer between steel sleeve side and the interior steel sleeve and outer steel sleeve pipe of fixed knot between steel sleeve
Equipped with sensor protection casing, and each section of sensor protection casing series connection communicates, and is continuous through whole Buried Steam Pipe；Online temperature
Spending monitoring system includes temperature sensor and remote temperature monitoring terminal；Temperature sensor is installed on sensor protection casing along journey
Interior, the temperature sensor in main pipeline, expansion joint and fixed knot passes through serial or parallel connection mode and remote temperature monitoring terminal phase
Even.
In the cross section of Buried Steam Pipe, sensor protection casing can be one, be also possible to circumferentially equal along section
More of even arrangement, and temperature sensor is equipped in every sensor protection casing.
The temperature sensor can be temperature sensing optical fiber, thermoelectricity occasionally thermal resistance.
In the fixed knot, it is also provided with the first concentric reducer and the second concentric reducer；First concentric size
The larger diameter end (one end being relatively large in diameter) of head is close to interior steel bushing inside pipe wall and is fixed, smaller diameter end (i.e. lesser one end of diameter)
It is close to work pipe outer wall to fix, for forming support between interior steel sleeve and instrumentation tubes；The outer steel sleeve pipe both ends are respectively set
There is second concentric reducer, the larger diameter end of second concentric reducer at both ends is closely sealed solid with the end face of outer steel sleeve pipe
Fixed, smaller diameter end is close to interior steel bushing pipe outer wall and is fixed, for forming support between interior steel sleeve and outer steel sleeve pipe.
Steel bushing tube cavity and outer steel sleeve tube cavity in being connected to can be equipped in the fixed knot, on the tube wall of interior steel sleeve
Through-hole.
First concentric reducer and the second concentric reducer can make first in pipeline axial direction interlaced arrangement
The fixation position of concentric reducer and the second concentric reducer on interior steel sleeve is not overlapped.
The utility model compared with prior art, has the advantages that
(1) the utility model is realized by the arrangement mounting means of temperature sensor on solution underground pipe difference pipe fitting
Measurement to buried pipeline global temperature.
(2) the utility model can use insulating layer temperature and the two threshold value conducts of heat supply temperature change rate and maximum temperature
The evaluation criteria of buried pipeline thermal performance realizes the purpose quickly detected to underground pipe performance.
(3) the utility model is led using concentric reducer so that being fixedly connected between instrumentation tubes and interior steel sleeve is staggered
It causes the heat transfer temperature difference at concentric reducer both ends to reduce, to reduce the heat bridge of support construction, is conducive to keep the temperature.And it utilizes
Steel sleeve and outer steel sleeve pipe in concentric reducer is fixed improve the support performance of inside and outside steel sleeve, avoid insulation construction
Deformation, ensure that the reliability of thermal insulation property.
Detailed description of the invention
Fig. 1 is the direct-buried steam pipeline heat-insulation performance monitoring apparatus schematic diagram based on the measurement of online temperature；
Fig. 2 is a kind of sectional view of main pipeline；
Fig. 3 is another sectional view of main pipeline；
Fig. 4 is the structural schematic diagram of fixed knot in another embodiment；
In figure: Buried Steam Pipe 1, on-line temperature monitoring system 2, main pipeline 1-1, expansion joint 1-2, fixed knot 1-3, work
Pipe 1-4, steel sleeve 1-5, insulating layer 1-6, bellows 1-7, interior steel sleeve 1-8, outer steel sleeve pipe 1-9, sensor protection casing 1-
10, through-hole 1-11, the first concentric reducer 1-12, the second concentric reducer 1-13, temperature sensor 2-1, remote temperature monitoring
Terminal 2-2.
Specific embodiment
The utility model is further elaborated with reference to the accompanying drawing, so as to those skilled in the art can better understand that
The essence of the utility model.
As shown in Figure 1, a kind of direct-buried steam pipeline heat-insulation performance monitoring apparatus based on the measurement of online temperature, is mainly wrapped
Include Buried Steam Pipe 1,2 two parts of on-line temperature monitoring system.
Buried Steam Pipe 1 includes main pipeline 1-1, expansion joint 1-2 and fixed knot 1-3, main pipeline 1-1, expansion joint 1-2 and solid
Surely section 1-3 is welded to connect by series connection.
It include instrumentation tubes 1-4, steel sleeve 1-5 and insulating layer 1-6 in main pipeline 1-1, expansion joint 1-2 and fixed knot 1-3.
Instrumentation tubes 1-4 and steel sleeve 1-5 in main pipeline 1-1, expansion joint 1-2 and fixed knot 1-3 is coaxially arranged, and steel sleeve 1-5
It is nested in outside instrumentation tubes 1-4, insulating layer 1-6 is filled between instrumentation tubes 1-4 and steel sleeve 1-5.
One section of bellows 1-7 is welded on the instrumentation tubes 1-4 of expansion joint 1-2, for compensating the axial stretching of pipeline.Supervisor
Steel sleeve 1-5 in road 1-1, expansion joint 1-2 is single layer casing, and the steel sleeve 1-5 in fixed knot 1-3 is bilayer sleeve,
Including interior steel sleeve 1-8 and outer steel sleeve pipe 1-9, insulating layer 1-6, outer steel sleeve are filled between interior steel sleeve 1-8 and instrumentation tubes 1-4
The coaxial nesting of pipe 1-9 is installed on the outside of interior steel sleeve 1-8, and is also filled with insulating layer 1-6 between the two.
The side steel sleeve 1-5 and fixation are leaned between the instrumentation tubes 1-4 and steel sleeve 1-5 of main pipeline 1-1 and expansion joint 1-2
It saves the side outer steel sleeve 1-9 between the interior steel sleeve 1-8 and outer steel sleeve pipe 1-9 of 1-3 and is respectively equipped with sensor protection casing 1-
10, and three sections of sensor protection casing 1-10 series connection in main pipeline 1-1, expansion joint 1-2 and fixed knot 1-3 communicates, and forms one
Item is continuous through the sensor protection casing 1-10 of whole Buried Steam Pipe 1, for protecting the internal sensor installed.
On-line temperature monitoring system 2 includes temperature sensor 2-2 and remote temperature monitoring terminal 2-1；Temperature sensor 2-2
It is installed in sensor protection casing 1-10 along journey, the temperature sensor 2- in main pipeline 1-1, expansion joint 1-2 and fixed knot 1-3
2 are connected by serial or parallel connection mode with remote temperature monitoring terminal 2-1, and the temperature data sensed is transmitted to remote temperature
Monitoring terminal 2-1 is stored, for subsequent analysis.Insulation layer 1-6 package outside sensor protection casing 1-10, but due to
It is laid with close to outermost steel sleeve, therefore the temperature that internal temperature sensor is sensed can reflect on the outside of insulating layer
Temperature change.Remote temperature monitoring terminal 2-1 is the terminal dress for capableing of each temperature sensor 2-2 signal transmitted of real-time reception
It sets, such as temperature monitor, moisture recorder, online monitoring temperature analysis system.Remote temperature monitoring terminal 2-1 is received
To signal be converted into temperature data storage after, manual or automatic can be sent to other platforms and be analyzed, if it is certainly long-range
Temperature monitoring terminal itself has analysis ability, directly can also display data and analyze in terminal.
In the cross section of Buried Steam Pipe 1, sensor protection casing 1-10 can only be arranged one, sensor protective sleeve
Temperature sensor 2-2 is equipped in pipe 1-10, as shown in Figure 2.It is of course also possible to more be arranged circumferentially along section, and it is every
It is equipped with temperature sensor 2-2 in sensor protection casing 1-10, as shown in figure 3, it is possible thereby to more accurate monitoring pipe
The thermal insulation property of road different location.
Temperature sensor 2-2 in on-line temperature monitoring system 2 can be temperature sensing optical fiber, be also possible to thermoelectricity occasionally thermoelectricity
Resistance.Temperature sensing optical fiber thermometric in laying range has continuity, therefore only needs temperature sensing optical fiber along sensor protection casing 1-
10 continuous layings can obtain the temperature data that all optical fiber are laid with each point in range.And thermoelectricity occasionally thermal resistance
Thermometric do not have continuity, be only capable of reaction setting position temperature, therefore its needed in sensor protection casing 1-10 every
Certain intervals are arranged one, and specific setting interval and density need depending on measurement accuracy.In order to Buried Steam Pipe 1 into
The comprehensive monitoring of row, no matter which kind of temperature sensor 2-2, setting area range should all cover all direct-burrieds to be monitored and steam
1 range of steam pipe.
Fixed knot is one of the core component in Buried Steam Pipe, improves the thermal protection of fixed knot, avoids leakage thermal phenomenon,
It is of great significance for improving directly buried pipeline integral heat insulation performance.And the fixed section structure of tradition, often in insulation thickness or
Supporting reliability aspect, there are problems, lead to leakage heat.In another embodiment, it is supervised based on above-mentioned direct-buried steam pipeline heat-insulation performance
Control device further improves fixed knot 1-3.As shown in figure 4, in the fixed knot 1-3 of the embodiment, in addition to instrumentation tubes
Except 1-4, insulating layer 1-6, interior steel sleeve 1-8 and outer steel sleeve pipe 1-9, it is additionally provided with 1 first concentric reducer 1-12 and 2
Two concentric reducer 1-13；The larger diameter end of first concentric reducer 1-12 is close to interior steel sleeve 1-8 inner wall circumferential direction and is welded and fixed,
Smaller diameter end is close to instrumentation tubes 1-4 outer wall circumferential direction and is welded and fixed, and thus forms between interior steel sleeve 1-8 and instrumentation tubes 1-4
Support.The both ends outer steel sleeve pipe 1-9 are respectively provided with a second concentric reducer 1-13, and the second concentric reducer 1-13's at both ends is big
End face circumferential direction of the diameter end with outer steel sleeve pipe 1-9 is welded and fixed, and smaller diameter end is close to interior steel sleeve 1-8 outer wall circumferential direction welding
It is fixed, thus support is also formed between interior steel sleeve 1-8 and outer steel sleeve pipe 1-9.Three concentric reducers are in bilayer sleeve
Between form reliable and stable support, eccentric phenomena can be generated under anti-external force influences heat insulation effect.And second is same
The larger diameter end of heart concentric reducer 1-13 is identical as the diameter of outer steel sleeve pipe 1-9, welds latter two end face coaxially and keeps closely sealed, interior
The sealing space that a filling heat insulating wall 1-6 is formed between steel sleeve 1-8 and outer steel sleeve pipe 1-9, can increase insulation thickness.At this
In kind fixed knot 1-3, sensor protection casing 1-10 needs to pass through interior steel from the inner cavity interior steel sleeve 1-8 of the one end fixed knot 1-3
After casing 1-8 tube wall, into the sealing space, it then is then passed through tube wall in the other end of fixed knot 1-3, comes back to interior steel bushing
In the inner cavity pipe 1-8.Moreover, the first concentric reducer 1-12 and the second concentric reducer 1-13 interlocks cloth in pipeline axial direction
It sets, is overlapped the fixation position of the first concentric reducer 1-12 and the second concentric reducer 1-13 on interior steel sleeve 1-8 not, phase
There is certain spacing between mutually.As a result, under the action of guaranteeing support, reduce the heat bridge of support construction by interlaced arrangement,
And then improve the thermal insulation property of fixed knot.In the present embodiment, fixation of the first concentric reducer 1-12 on interior steel sleeve 1-8
Position is located just at the centre of fixation position of two the second concentric reducer 1-13 on interior steel sleeve 1-8.
In addition, in fixed knot 1-3, the inner cavity steel sleeve 1-8 and outer can also be opened up in connection on the tube wall of interior steel sleeve 1-8
The through-hole 1-11 of the inner cavity steel sleeve 1-9 guarantees not generate high-pressure phenomena under special circumstances in casing.
Detection method is damaged using the pipe of the above-mentioned direct-buried steam pipeline heat-insulation performance monitoring apparatus based on the measurement of online temperature,
Detailed process is as follows for it:
Temperature sensor 2-2 is installed on the sensor protection casing of main pipeline 1-1, expansion joint 1-2 and fixed knot 1-3 in advance
In 1-10, and after constructing together with main pipeline 1-1, expansion joint 1-2 and fixed knot 1-3, temperature of each section sensor 2-2 passes through series connection
Or parallel way is connect with remote temperature monitoring terminal 2-1, is realized and is carried out far to the temperature value at direct-buried steam pipeline any point
Journey on-line monitoring；
Remote temperature monitoring terminal 2-1 obtains the temperature T on the outside of any point insulating layeri, while obtaining Buried Steam Pipe
Heat supply temperature TsWith pressure P parameter；It is interior with monitoring and setting time interval Δ t (specific value can be according to practical adjustment) by calculating
Temperature change slope k on the outside of any point insulating layeriWith heat supply temperature parameter change rate ks, work as ki/ksWhen more than given threshold,
It alarms, shows that the thermal insulation property deteriorates；At the same time, it is set by the steam to different heat supply temperatures different
Threshold temperature Tc；When occurring temperature T on the outside of any point insulating layer simultaneouslyiHigher than threshold temperature TcAnd ki/ksMore than given threshold
When, determine utilidor damage, and according to the quantity of alert detecting point, determine the length of pipeline damage, determines maintenance position, row
Look into hidden danger.
The specific work process of the utility model is as follows:
For temperature sensor while pipeline difference tube manufacture, i.e., mounting arrangements are in pipe fitting；Construction stage at the scene,
Each pipe fitting is installed at the scene respectively, and at the same time, the temperature sensor between each pipe fitting is constituted by way of serial or parallel connection
The thermometric network of all pipeline ranges to be monitored is covered, and is connected with remote temperature monitoring terminal, by the monitoring temperature of each point
Data are sent to terminal.
In the buried pipeline conveying steam course of work, remote temperature monitoring terminal passes through the heat supply for reading Buried Steam Pipe
Parameter obtains the heat supply temperature (T of heating steams) and pressure (P).At the same time, the temperature sensor arranged in buried pipeline
The thermometric network of composition can obtain the temperature value (T on the outside of the insulating layer of any positioni), pass through TiBuried pipeline can be assessed
Thermal insulation property.
It is calculated, is acquired on the outside of insulating layer by the temperature change feature to (such as 1 hour) in certain time interval
Rate of temperature change (ki) and heat supply temperature parameter change rate (ks), when instrumentation tubes leak, heating steam temperature change is not
Greatly, but insulating layer temperature outside will appear apparent increase, at this point, the rate of temperature change (k on the outside of insulating layeri) it will appear obvious liter
High phenomenon, works as ki/ksHigher than given threshold, it is abnormal to show that thermal insulation property occurs for teleterminal system alarm；With temperature after
Height of continuing rising, insulating layer temperature outside are increased to certain degree, more than the threshold temperature (T of settingc), pipe insulation performance at this time
It has been lost that, determine utilidor damage, and according to the quantity of alert detecting point and position, determined the length of pipeline damage, really
Regular inspection repairs position, checks hidden danger.
When instrumentation tubes are not revealed, there is soaked phenomenon due to outer tube breakage etc. in single insulating layer, at this time insulating layer
Heat insulation effect reduces, the rate of temperature change (k on the outside of insulating layeri) it will appear significantly raised phenomenon, work as ki/ksHigher than given threshold,
It equally alarms, shows pipe insulation reduced performance；But since the temperature on the outside of insulating layer is not above threshold temperature, this
When only show that thermal insulation property reduces, but also be not up to replacement standard.
The utility model is realized by solving the arrangement mounting means of temperature sensor on underground pipe difference pipe fitting to burying
The measurement of ground pipeline global temperature, in addition, by utilizing insulating layer temperature and two thresholds of heat supply temperature change rate and maximum temperature
It is worth the evaluation criteria as buried pipeline thermal performance, realizes the purpose quickly detected to underground pipe performance.
Claims (6)
1. a kind of buried steam pipeline heat-insulation performance monitoring apparatus based on the measurement of online temperature, it is characterised in that steamed including direct-burried
Steam pipe (1), on-line temperature monitoring system (2) two parts；
Buried Steam Pipe (1) includes main pipeline (1-1), expansion joint (1-2) and fixed knot (1-3), main pipeline (1-1), expansion joint
(1-2) and fixed knot (1-3) are welded to connect by series connection；
Main pipeline (1-1), expansion joint (1-2) and fixed knot (1-3) include instrumentation tubes (1-4), steel sleeve (1-5) and insulating layer
(1-6)；Instrumentation tubes (1-4) and steel sleeve (1-5) are coaxially arranged, and steel sleeve (1-5) is nested in instrumentation tubes (1-4) outside,
Insulating layer (1-6) is filled between instrumentation tubes (1-4) and steel sleeve (1-5)；
Bellows (1-7) is welded in the instrumentation tubes (1-4) of expansion joint (1-2)；Steel sleeve (1-5) packet in fixed knot (1-3)
Interior steel sleeve (1-8) and outer steel sleeve pipe (1-9) are included, the coaxial nesting of outer steel sleeve pipe (1-9) is installed on the outer of interior steel sleeve (1-8)
Portion, and it is also filled with insulating layer (1-6) between the two；
Between main pipeline (1-1) and the instrumentation tubes (1-4) and steel sleeve (1-5) of expansion joint (1-2) by the steel sleeve side (1-5) with
And outer steel sleeve (1-9) side is respectively equipped with biography between the interior steel sleeve (1-8) and outer steel sleeve pipe (1-9) of fixed knot (1-3)
Sensor protection sleeve pipe (1-10), and each section of sensor protection casing (1-10) series connection communicates, and is continuous through whole Buried Steam Pipe
(1)；
On-line temperature monitoring system (2) includes temperature sensor (2-2) and remote temperature monitoring terminal (2-1)；Temperature sensor
(2-2) is installed in sensor protection casing (1-10) along journey, in main pipeline (1-1), expansion joint (1-2) and fixed knot (1-3)
Temperature sensor (2-2) be connected by serial or parallel connection mode with remote temperature monitoring terminal (2-1).
2. a kind of buried steam pipeline heat-insulation performance monitoring apparatus based on the measurement of online temperature according to claim 1,
It is characterized in that the sensor protection casing (1-10) has one or along disconnected in the cross section of Buried Steam Pipe (1)
Be arranged circumferentially more of face, and temperature sensor (2-2) is equipped in every sensor protection casing (1-10).
3. a kind of buried steam pipeline heat-insulation performance monitoring apparatus based on the measurement of online temperature according to claim 1,
It is characterized in that the temperature sensor (2-2) is temperature sensing optical fiber, thermoelectricity occasionally thermal resistance.
4. a kind of buried steam pipeline heat-insulation performance monitoring apparatus based on the measurement of online temperature according to claim 1,
It is characterized in that being additionally provided with the first concentric reducer (1-12) and the second concentric reducer (1- in the fixed knot (1-3)
13)；The larger diameter end of first concentric reducer (1-12) is close to interior steel sleeve (1-8) inner wall and is fixed, and smaller diameter end is close to work
Pipe (1-4) outer wall is fixed, for forming support between interior steel sleeve (1-8) and instrumentation tubes (1-4)；The outer steel sleeve pipe
The both ends (1-9) are respectively provided with second concentric reducer (1-13), the larger diameter end of second concentric reducer (1-13) at both ends
With the closely sealed fixation in end face of outer steel sleeve pipe (1-9), smaller diameter end is close to interior steel sleeve (1-8) outer wall and is fixed, including being used for
Support is formed between steel sleeve (1-8) and outer steel sleeve pipe (1-9).
5. a kind of buried steam pipeline heat-insulation performance monitoring apparatus based on the measurement of online temperature according to claim 4,
It is characterized in that the tube wall of interior steel sleeve (1-8), which is equipped with, is connected to interior inner cavity steel sleeve (1-8) in the fixed knot (1-3)
With the through-hole (1-11) of the inner cavity outer steel sleeve pipe (1-9).
6. a kind of buried steam pipeline heat-insulation performance monitoring apparatus based on the measurement of online temperature according to claim 4,
It is characterized in that first concentric reducer (1-12) and the second concentric reducer (1-13) is interlocked in pipeline axial direction
Arrangement, makes the fixation position of the first concentric reducer (1-12) and the second concentric reducer (1-13) on interior steel sleeve (1-8)
It is not overlapped.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821298177.4U CN208750191U (en) | 2018-08-13 | 2018-08-13 | A kind of buried steam pipeline heat-insulation performance monitoring apparatus based on the measurement of online temperature |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821298177.4U CN208750191U (en) | 2018-08-13 | 2018-08-13 | A kind of buried steam pipeline heat-insulation performance monitoring apparatus based on the measurement of online temperature |
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| CN208750191U true CN208750191U (en) | 2019-04-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027442A (en) * | 2018-08-13 | 2018-12-18 | 宁波万里管道有限公司 | Buried steam pipeline heat-insulation performance monitoring apparatus and method based on the measurement of online temperature |
-
2018
- 2018-08-13 CN CN201821298177.4U patent/CN208750191U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027442A (en) * | 2018-08-13 | 2018-12-18 | 宁波万里管道有限公司 | Buried steam pipeline heat-insulation performance monitoring apparatus and method based on the measurement of online temperature |
| CN109027442B (en) * | 2018-08-13 | 2024-01-23 | 宁波万里管道有限公司 | Buried steam pipeline heat preservation performance monitoring device and method based on online temperature measurement |
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