CN113309989A - Heat tracing pipeline with leakage point detection function - Google Patents
Heat tracing pipeline with leakage point detection function Download PDFInfo
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- CN113309989A CN113309989A CN202110533862.0A CN202110533862A CN113309989A CN 113309989 A CN113309989 A CN 113309989A CN 202110533862 A CN202110533862 A CN 202110533862A CN 113309989 A CN113309989 A CN 113309989A
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- pipeline
- pipeline body
- heat tracing
- driving machine
- fixedly connected
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- 238000001514 detection method Methods 0.000 title claims abstract description 36
- 239000002184 metal Substances 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000011324 bead Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 12
- 238000004321 preservation Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- 229920001940 conductive polymer Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/35—Ohmic-resistance heating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a heat tracing pipeline with a leakage point detection function, and relates to the technical field of heat tracing pipelines with leakage points detection functions. The invention comprises a pipeline body, a driving machine and a state alarm display. According to the invention, the annular detector, the detection groove and the pressure sensing piece are arranged, the annular detector is designed into an annular shape and is sleeved on the outer side of the pipeline body, so that the upper detector and the lower detector are both attached to the pipeline, and when the pressure sensing piece encounters a leakage point in the moving process, the airflow at the leakage point can be different from the airflow at the normal position of the pipeline body, and when the pressure sensing piece detects a position with larger pressure change, a signal can be sent out, so that leakage can be detected. Set up the driving machine, remove and change pearl, steady connector can drive the annular detector and move the detection leak source gently in the heat pipe outside, can detect out the leak source in time with sound and display lamp warning people, in time revise, avoid causing great loss when the annular detector detects out the leak source.
Description
Technical Field
The invention belongs to the technical field of leakage point detection heat tracing pipelines, and particularly relates to a leakage point detection heat tracing pipeline.
Background
The heat tracing pipeline is composed of a conductive polymer, two parallel metal conducting wires and an insulating protective layer. The conductive polymer has high positive temperature coefficient characteristic, is connected in parallel, can automatically adjust output power along with the temperature change of a heated system, automatically limits the heating temperature, can be arbitrarily shortened or used for a long time within a certain range, and allows multiple cross overlapping without the worry of high temperature hot spots and burning. In production practice, some easily-coagulated media, such as crude oil, heavy oil and the like, gradually increase in viscosity due to gradual temperature reduction and even solidification during pipeline transportation, and thus production is affected. Therefore, when conveying such media, heat preservation measures must be taken to maintain a certain temperature of the material. The heat tracing is a constant temperature or heating mode adopted for preventing the materials in the pipeline from crystallizing, solidifying or meeting the process requirements and keeping the materials at a certain temperature. The conventional heat tracing pipeline is generally detected by manually taking an instrument in the process of detecting a leakage point, the operation efficiency is low, the material temperature is low, and a large amount of manpower and material resources are consumed, so that the improvement is carried out, and the heat tracing pipeline with the leakage point is provided.
Disclosure of Invention
The invention aims to provide a heat tracing pipeline with a leak detection point, which solves the existing problems: the process of the existing heat tracing pipeline for detecting the leakage point is generally that an instrument is manually taken for detection, the operation efficiency is low, and the material temperature is lowered to cause the consumption of a large amount of manpower and material resources.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a heat tracing pipeline with a leak detection point, which comprises a pipeline body, a driving machine and a state alarm display, wherein the driving machine is fixedly arranged on the outer side of the pipeline body, the bottom end of the driving machine is rotatably connected with the outer side of the pipeline body, and the state alarm display is fixedly arranged in the middle of the driving machine.
Further, the outside of pipeline body is provided with annular detector, just the inboard of annular detector and the outside sliding connection of pipeline body, the inboard inside fixed detection groove that is provided with of annular detector, detect inslot portion and be provided with pressure sensing piece, just the rear end of pressure sensing piece and the inboard fixed connection of annular detector.
Further, the rear side of the driving machine is provided with a stable connector, the rear end of the stable connector is fixedly connected with the rear side of the driving machine, the front end of the stable connector is provided with a processor, the two sides of the processor are fixedly connected with the front end of the stable connector, the inner side of the processor is provided with an annular detector, and the upper end of the annular detector is fixedly connected with the inner side of the processor.
Further, the state alarm display comprises a voice ring, a display lamp and a sound outlet hole, the bottom end of the display lamp is fixedly installed at the upper end of the state alarm display, the voice ring is fixedly arranged on the outer side of the state alarm display, the sound outlet hole is formed in the outer side of the voice ring, and the rear end of the sound outlet hole is fixedly connected with the front end of the voice ring.
Further, the inside of driving machine is provided with the shifting chute, just the rear end of shifting chute and the inside fixed connection of driving machine, the inside removal that is provided with of driving machine changes the pearl, just the upper end that the pearl was changeed in the removal rotates with the inside of shifting chute to be connected, the lower extreme that the pearl was changeed in the removal is provided with the pipeline body, just the outside of pipeline body rotates with the lower extreme that the pearl was changeed in the removal to be connected.
Furthermore, a first connecting frame is fixedly arranged on the upper side and the lower side of the driving machine, a second connecting frame is arranged at the upper end of the first connecting frame, the lower end of the second connecting frame is fixedly connected with the upper end of the first connecting frame, a third connecting frame is fixedly mounted at the upper end of the second connecting frame, and a locking block is connected with an upper end clamping hole of the third connecting frame.
Further, the pipeline body is internally provided with an insulating layer, the outer side of the insulating layer is fixedly connected with the inner side of the pipeline body, a heat insulating layer is arranged on the inner side of the insulating layer, and the outer end of the heat insulating layer is fixedly connected with the inner side of the insulating layer.
Further, the fixed heat preservation that is provided with in inside of pipeline body, the inside of heat preservation is provided with flexible inner tube, just fixed mounting is hired in the inside of heat preservation outside of flexible inner tube, the number of flexible inner tube is two.
Further, the inside fixed mounting of pipeline body has metal mesh grid, just the outside of metal mesh grid and the inboard fixed connection of heat preservation, the fixed right that sets up at flexible inner tube of metal mesh grid, the inside heated pipe that is provided with of metal mesh grid, just the outer end of heated pipe and the inside upper end fixed connection of metal mesh grid.
Furthermore, a heated pipe is arranged in the pipeline body, a heating element is arranged at the lower part of the heated pipe, the outer side of the heating element is fixedly arranged below the inner part of the metal mesh grid, and the diameter of the heating element is smaller than that of the heated pipe.
The invention has the following beneficial effects:
1. according to the invention, the annular detector, the detection groove and the pressure sensing piece are arranged, the annular detector is designed into an annular shape and is sleeved on the outer side of the pipeline body, so that the upper detector and the lower detector are both attached to the pipeline, the detectors are prevented from being separated from the pipeline, when the pressure sensing piece encounters a leakage point in the moving process, the airflow at the leakage point can be different from the airflow at the normal position of the pipeline body, and when the pressure sensing piece detects a position with larger pressure change, a signal can be sent out, so that leakage is detected.
2. The invention can drive the annular detector to gently move outside the heat pipe to detect the leak point by arranging the driving machine, the movable rotating bead and the stable connector, and can remind people of finding the leak point in time by sound and the display lamp when the annular detector detects the leak point by arranging the display lamp, the voice ring and the sound outlet hole, so that the leak point can be corrected in time, and the major loss can be avoided.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a heat trace line with leak detection according to the present invention;
FIG. 2 is a top view of the overall construction of the heat trace line with leak detection of the present invention;
FIG. 3 is an enlarged view of the pressure sensing plate structure in the trace heating line with leak detection according to the present invention;
FIG. 4 is a schematic view of the overall configuration of a status alarm display in a heat trace line with leak detection points according to the present invention;
FIG. 5 is a schematic view of the connection structure of the pipeline body and the driving machine in the heat tracing pipeline with leak detection points according to the present invention;
FIG. 6 is a schematic view of the internal structure of the pipeline body in the heat tracing pipeline with leak detection points according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a pipeline body; 2. a driver; 3. a first connecting frame; 4. a second link frame; 5. a third connecting frame; 6. a locking block; 7. a stationary connector; 8. a status alarm display; 9. a processor; 10. an annular detector; 11. a detection tank; 12. a pressure sensing sheet; 13. moving the rotating beads; 14. a voice ring; 15. a display lamp; 16. a sound outlet hole; 17. a moving groove; 18. a heating element; 19. an insulating layer; 20. a heat-insulating layer; 21. a flexible inner tube; 22. a metal mesh grid; 23. the tube is heated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the invention relates to a heat tracing pipeline with a leak detection function, which comprises a pipeline body 1, a driving machine 2 and a state alarm display 8, wherein the driving machine 2 is fixedly arranged on the outer side of the pipeline body 1, the bottom end of the driving machine 2 is rotatably connected with the outer side of the pipeline body 1, and the state alarm display 8 is fixedly arranged in the middle of the driving machine 2. The outer side of the pipeline body 1 is provided with an annular detector 10, the inner side of the annular detector 10 is connected with the outer side of the pipeline body 1 in a sliding mode, a detection groove 11 is fixedly arranged inside the inner side of the annular detector 10, a pressure sensing piece 12 is arranged inside the detection groove 11, and the rear end of the pressure sensing piece 12 is fixedly connected with the inner side of the annular detector 10. The rear side of driving machine 2 is provided with steady connector 7, and the rear end of steady connector 7 and the rear side fixed connection of driving machine 2, and the front end of steady connector 7 is provided with treater 9, and the both sides of treater 9 and the front end fixed connection of steady connector 7, and the inboard of treater 9 is provided with annular detector 10, and the inboard fixed connection of the upper end of annular detector 10 and treater 9. The state alarm display 8 comprises a voice ring 14, a display lamp 15 and a sound outlet hole 16, the bottom end of the display lamp 15 is fixedly installed at the upper end of the state alarm display 8, the voice ring 14 is fixedly arranged on the outer side of the state alarm display 8, the sound outlet hole 16 is arranged on the outer side of the voice ring 14, the rear end of the sound outlet hole 16 is fixedly connected with the front end of the voice ring 14, the annular detector 10 is designed to be in a ring shape and is sleeved on the outer side of the pipeline body 1, so that the upper detector and the lower detector are both attached to the pipeline, the detectors can not be separated from the pipeline, and when the pressure sensing piece 12 encounters a leak point in the moving process, the air flow at the leak point can be different from the air flow at the normal position of the pipeline body 1, when the pressure sensing piece 12 detects that the pressure has a large change position, the leak can be detected.
The inside of driving machine 2 is provided with shifting chute 17, and the rear end of shifting chute 17 and the inside fixed connection of driving machine 2, and driving machine 2 is inside to be provided with to move changes pearl 13, and moves the inside rotation of the upper end of changeing pearl 13 and shifting chute 17 and be connected, and the lower extreme that moves and change pearl 13 is provided with pipeline body 1, and the outside of pipeline body 1 rotates with the lower extreme that moves and change pearl 13 and is connected. The upper and lower both sides of driving machine 2 are fixed and are provided with first link 3, and the upper end of first link 3 is provided with second link 4, and the lower extreme of second link 4 and the upper end fixed connection of first link 3, and the upper end fixed mounting of second link 4 has third link 5, and the upper end card jogged joint of third link 5 has locking piece 6. Inside insulating layer 19 that is provided with of pipeline body 1, and the outside of insulating layer 19 and the inboard fixed connection of pipeline body 1, the inboard of insulating layer 19 is provided with heat preservation 20, and the outer end of heat preservation 20 and the inboard fixed connection of insulating layer 19, and driving machine 2, removal change pearl 13, steady connector 7 can drive annular detector 10 and gently move in the heat pipe outside and detect the leak source.
The fixed heat preservation 20 that is provided with in inside of pipeline body 1, the inside of heat preservation 20 is provided with flexible inner tube 21, and the inside of hiring fixed mounting in heat preservation 20 outside of flexible inner tube 21, and the number of flexible inner tube 21 is two. Inside fixed mounting of pipeline body 1 has metal mesh grid 22, and the outside of metal mesh grid 22 and the inboard fixed connection of heat preservation 20, and metal mesh grid 22 is fixed to be set up on the right of flexible inner tube 21, and metal mesh grid 22 is inside to be provided with by heating pipe 23, and by the inside upper end fixed connection of the outer end of heating pipe 23 and metal mesh grid 22. The inside that pipeline body 1 is provided with inside of pipeline body 1 is provided with heated pipe 23, the lower part of heated pipe 23 is provided with heating element 18, and the outside fixed mounting of heating element 18 is in the inside below of woven wire netting 22, the diameter of heating element 18 is less than the diameter of heated pipe 23, display lamp 15, pronunciation ring 14 and play sound hole 16 can be when annular detector 10 detects out the leak source with sound and display lamp warning people in time discover the leak source, in time revise, avoid causing great loss.
One specific application of this embodiment is: during the use, install driver 2 and annular detector 10 in the pipeline body 1 outside earlier, then first link 3, second link 4, third link 5 are closed from top to bottom, carry out the card hole by locking piece 6 to third link 5 and pin, the inboard and the outside sliding connection of pipeline body 1 of annular detector 10, the inboard inside fixed detection groove 11 that is provided with of annular detector 10, the rear end of pressure sensing piece 12 and the inboard fixed connection of annular detector 10. The rear end of the stationary connector 7 is fixedly connected with the rear side of the driving machine 2, the two sides of the processor 9 are fixedly connected with the front end of the stationary connector 7, and the upper end of the annular detector 10 is fixedly connected with the inner side of the processor 9. Annular detector 10 designs into annular shape cover and makes two detectors about 1 outside of pipeline make all paste tightly on the pipeline, guarantees that the detector can not break away from the pipeline to pressure sensing piece 12 is when moving the in-process and meet the leak source, and leak source department air current can be distinguished from the air current of pipeline body 1 normal position, just can signal when pressure sensing piece 12 measures pressure and has great change position, detects out the hourglass. The inside of driving machine 2 is provided with shifting chute 17, and the upper end that removes to change pearl 13 is connected with the inside rotation of shifting chute 17, and the lower extreme that removes to change pearl 13 is provided with pipeline body 1, and the lower extreme of second link 4 and the upper end fixed connection of first link 3, driving machine 2, removal change pearl 13, steady connector 7 can drive annular detector 10 and gently move in the heat pipe outside and detect the leak source. The bottom fixed mounting of display lamp 15 is in the upper end of state alarm display 8, and the fixed pronunciation ring 14 that is provided with in the outside of state alarm display 8, and the outside of pronunciation ring 14 is provided with out the sound hole 16, and display lamp 15, pronunciation ring 14 and play sound hole 16 can remind people in time to discover the leak source with sound and display lamp when annular detector 10 detects out the leak source, in time revise, avoid causing great loss.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The utility model provides a have detection leak source heat tracing pipeline, includes pipeline body (1), driving machine (2), state alarm display (8), its characterized in that: the pipeline is characterized in that a driving machine (2) is fixedly arranged on the outer side of the pipeline body (1), the bottom end of the driving machine (2) is rotatably connected with the outer side of the pipeline body (1), and the state alarm display (8) is fixedly installed in the middle of the driving machine (2).
2. The heat tracing pipeline with the leak detection function according to claim 1, wherein an annular detector (10) is arranged on the outer side of the pipeline body (1), the inner side of the annular detector (10) is slidably connected with the outer side of the pipeline body (1), a detection groove (11) is fixedly arranged inside the inner side of the annular detector (10), a pressure sensing piece (12) is arranged inside the detection groove (11), and the rear end of the pressure sensing piece (12) is fixedly connected with the inner side of the annular detector (10).
3. Heat tracing line with leak detection according to claim 1, characterized in that the rear side of the driver (2) is provided with a stationary connector (7) and the rear end of the stationary connector (7) is fixedly connected with the rear side of the driver (2), the front end of the stationary connector (7) is provided with a processor (9) and both sides of the processor (9) are fixedly connected with the front end of the stationary connector (7), the inner side of the processor (9) is provided with a ring detector (10) and the upper end of the ring detector (10) is fixedly connected with the inner side of the processor (9).
4. The heat tracing pipeline with the leakage point detection function according to claim 1, wherein the status alarm display (8) comprises a voice ring (14), a display lamp (15) and a sound outlet hole (16), the bottom end of the display lamp (15) is fixedly installed at the upper end of the status alarm display (8), the voice ring (14) is fixedly arranged on the outer side of the status alarm display (8), the sound outlet hole (16) is arranged on the outer side of the voice ring (14), and the rear end of the sound outlet hole (16) is fixedly connected with the front end of the voice ring (14).
5. The heat tracing pipeline with the leakage point detection function according to claim 1, wherein a moving groove (17) is formed in the driving machine (2), the rear end of the moving groove (17) is fixedly connected with the inside of the driving machine (2), a moving rotating bead (13) is arranged in the driving machine (2), the upper end of the moving rotating bead (13) is rotatably connected with the inside of the moving groove (17), a pipeline body (1) is arranged at the lower end of the moving rotating bead (13), and the outer side of the pipeline body (1) is rotatably connected with the lower end of the moving rotating bead (13).
6. The heat tracing pipeline with the leakage point detection function according to claim 1, wherein first connecting frames (3) are fixedly arranged on the upper side and the lower side of the driving machine (2), a second connecting frame (4) is arranged at the upper end of each first connecting frame (3), the lower end of each second connecting frame (4) is fixedly connected with the upper end of each first connecting frame (3), a third connecting frame (5) is fixedly arranged at the upper end of each second connecting frame (4), and a locking block (6) is connected with the upper end of each third connecting frame (5) in a clamping hole mode.
7. The heat tracing pipeline with the leakage point detection function according to claim 1, wherein an insulating layer (19) is arranged inside the pipeline body (1), the outer side of the insulating layer (19) is fixedly connected with the inner side of the pipeline body (1), an insulating layer (20) is arranged on the inner side of the insulating layer (19), and the outer end of the insulating layer (20) is fixedly connected with the inner side of the insulating layer (19).
8. The heat tracing pipeline with the leakage point detection function according to claim 1, wherein an insulating layer (20) is fixedly arranged inside the pipeline body (1), a flexible inner pipe (21) is arranged inside the insulating layer (20), the outer portion of the flexible inner pipe (21) is fixedly arranged inside the insulating layer (20), and the number of the flexible inner pipes (21) is two.
9. The heat tracing pipeline with the leakage point detection function according to claim 1, wherein a metal mesh grid (22) is fixedly installed inside the pipeline body (1), the outer side of the metal mesh grid (22) is fixedly connected with the inner side of the heat insulation layer (20), the metal mesh grid (22) is fixedly arranged on the right side of the flexible inner pipe (21), a heated pipe (23) is arranged inside the metal mesh grid (22), and the outer end of the heated pipe (23) is fixedly connected with the inner upper end of the metal mesh grid (22).
10. The heat tracing pipeline with the leak detection function according to claim 1, wherein a heated pipe (23) is arranged inside the pipeline body (1) and inside the pipeline body (1), a heating element (18) is arranged at the lower part of the heated pipe (23), the outer side of the heating element (18) is fixedly arranged below the inner part of the metal mesh grid (22), and the diameter of the heating element (18) is smaller than that of the heated pipe (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110533862.0A CN113309989A (en) | 2021-05-17 | 2021-05-17 | Heat tracing pipeline with leakage point detection function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110533862.0A CN113309989A (en) | 2021-05-17 | 2021-05-17 | Heat tracing pipeline with leakage point detection function |
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| CN113309989A true CN113309989A (en) | 2021-08-27 |
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| CN202110533862.0A Pending CN113309989A (en) | 2021-05-17 | 2021-05-17 | Heat tracing pipeline with leakage point detection function |
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2021
- 2021-05-17 CN CN202110533862.0A patent/CN113309989A/en active Pending
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|---|---|---|---|---|
| US20030192875A1 (en) * | 2002-04-12 | 2003-10-16 | Lisa Bieker | Heating jacket assembly with field replaceable thermostat |
| US20060137431A1 (en) * | 2004-06-04 | 2006-06-29 | Leslie Fernandes | Bleed leak detection system |
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Application publication date: 20210827 |
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