CN112126934A - Regional cathodic protection testing arrangement in natural gas station yard - Google Patents
Regional cathodic protection testing arrangement in natural gas station yard Download PDFInfo
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- CN112126934A CN112126934A CN202010994930.9A CN202010994930A CN112126934A CN 112126934 A CN112126934 A CN 112126934A CN 202010994930 A CN202010994930 A CN 202010994930A CN 112126934 A CN112126934 A CN 112126934A
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- China
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- inspection window
- natural gas
- pile body
- sealing
- cathodic protection
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/22—Monitoring arrangements therefor
Abstract
The utility model provides a regional cathodic protection testing arrangement in natural gas station field, includes the test stake body, still includes: inspection window mechanism, the inspection window has been seted up on the test stake body outer wall, one side of inspection window is rotated and is installed metal baffle, inspection window mechanism include with test stake body sliding connection, and detachable sealed the package establishes the sealed pad outside metal baffle. According to the invention, the sealing gasket is completely wrapped outside the metal baffle plate in a horizontal sliding mode, or the sealing gasket and the metal baffle plate are completely staggered, so that the defense protection of the inspection window and the opening of the inspection window are realized, the operation is simple and convenient, the arrangement of a locking assembly is not required, the high efficiency and convenience of the opening and inspection operation of the inspection window are improved, the leakage-proof protection is carried out on the inspection window of the test pile, the phenomenon that the circuit test is unstable due to the water seepage of the wiring board at the inspection window is reduced, and the use safety and stability of the test pile are improved.
Description
Technical Field
The invention relates to a regional cathodic protection testing device for a natural gas station.
Background
The existing regional cathodic protection testing device for the natural gas station field is mostly completed through a testing pile, and the testing pile is special equipment for testing the cathodic protection of a pipeline. The device is mainly used for detecting parameters such as cathodic protection current, potential, insulating property and the like, is an essential device in pipeline management and maintenance, and is arranged along a line according to a test function.
However, in the long-term use of the testing pile, the cathode protection testing pile is found in the open environment, rainwater easily permeates into the testing pile, so that a tester is corroded and rusted, a wiring board is damaged and aged, and the service life of the testing pile is shortened; moreover, the part of the test pile extending into the ground and the part of the bottom of the test pile close to the ground are easy to collide to influence the electric connection of a wiring board inside the test pile, and the bottom of the test pile is in contact with the ground for a long time, so that the corrosion and rust phenomena can occur, and the service life of the test pile is greatly influenced;
therefore, the regional cathodic protection testing device for the natural gas station is provided, the testing pile is protected from rain leakage, impact and bottom corrosion and rust, so that the service life of the testing pile is prolonged, the working stability of the testing pile is ensured, and the usability of the testing pile is improved.
Disclosure of Invention
The invention aims to provide a regional cathodic protection testing device for a natural gas station, which solves the problems that in the prior art, a testing pile for the regional cathodic protection testing device for the natural gas station is prone to rainwater leakage and lacks of collision resistance and corrosion resistance.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a regional cathodic protection testing arrangement in natural gas station field, includes the test stake body, still includes:
the inspection window mechanism comprises a sealing gasket which is connected with the testing pile body in a sliding manner and is detachably and hermetically wrapped outside the metal baffle;
the supporting mechanism comprises a supporting barrel sleeved at the bottom of the testing pile body, and the supporting barrel limits the vertical movement of the testing pile body;
the gasbag cover, the gasbag cover sets up in supporting the bucket, the gasbag cover is established outside the test stake body, the interior outer wall of gasbag cover laminates with test stake body and support bucket inner wall respectively.
Preferably, inspection window mechanism still includes the sealing strip that is the annular structure of fixed connection in sealed the pad, test stake body outer wall offer with the seal groove of inspection window coaxial center, the external diameter of seal groove is greater than the external diameter of metal baffle, be detachable sealing connection between sealing strip and the seal groove.
Preferably, the sealing strip is including the rubber circle that is the loop configuration, the inside of rubber circle is inlayed and is equipped with the powerful magnetic path that is less than the thickness of rubber circle, the inboard of seal groove is inlayed and is equipped with the powerful magnetic plate of being connected with powerful magnetic path magnetism, the outer fixedly connected with rubber pad of powerful magnetic plate, pass through magnetism sealing connection between sealing strip and the seal groove.
Preferably, two sliding rods which are of L-shaped structures are arranged on the end face of the inner side of the sealing gasket in parallel, and a sliding groove which is of an annular structure and used for limiting sliding of the sliding rods is formed in the outer opening of the testing pile body.
Preferably, the distance between the two sliding rods is larger than the longest diameter of the sealing strip, and the two sliding rods are vertically symmetrical about the horizontal center line of the sealing strip.
Preferably, the distance from the end face of the inner side of the sealing gasket to the outer wall of the testing pile body is smaller than the thickness of the rubber ring, and the thickness of the rubber ring is larger than the distance from the end face of the inner side of the sealing gasket to the sealing groove.
Preferably, the bottom of the supporting barrel is fixedly connected with the ground, and supporting legs fixedly connected with the ground are obliquely arranged on two sides of the supporting barrel.
Preferably, the slide rail that is the loop configuration is seted up at the top of support bucket, the outer wall of test stake body is provided with the thread circle structure, test stake body screw thread closes soon and is connected with the holding ring, the both sides fixedly connected with bracing piece of holding ring, and the extension end of two sets of bracing pieces slides in the slide rail to inject the up-and-down motion of test stake body.
Preferably, the bottom of gasbag cover and the inner wall fixed connection who supports the bucket, the top and the holding ring fixed connection of gasbag cover.
Preferably, the gasbag cover is the rubber gasbag material, the length of gasbag cover equals the interval between gasbag cover bottom to the holding ring.
The invention has at least the following beneficial effects:
1. through horizontal slip's mode, will seal up the complete package of pad outside metal baffle, perhaps will seal up pad and metal baffle dislocation completely, with the defense protection that realizes inspection window and the opening of inspection window, not only easy operation is convenient, and need not locking Assembly's setting, the high efficiency and the convenience that inspection window opened inspection operation have been improved, carry out the protection of rain leakage prevention through the inspection window to the test stake, with the wiring board infiltration that reduces inspection window department leads to the unstable phenomenon of circuit test to take place, the security and the stability that the improvement test stake was used.
2. Through supporting the barrel casing in test stake body bottom, support bucket and ground fixed contact, support bucket and the above-ground external contact, the bottom of test stake simultaneously receives the protection of supporting the bucket to reduce the direct and foreign matter contact in test stake bottom, reduce the possibility that the test stake is corroded damage, improve the life of test stake body.
3. Cushion the power of testing stake body horizontal direction through the gasbag cover, improve the anti striking performance of testing stake, test simultaneously stake body can with the convenient dismouting of supporting mechanism to the change of gasbag cover is used, prevents that the gasbag cover from running out the gas influence to the buffering guard action of testing stake, thereby has realized a life height, uses the convenient stable testing stake that is used for the regional cathodic protection of natural gas station field.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a test pile structure;
FIG. 2 is a schematic cross-sectional view of a test pile at an inspection window;
FIG. 3 is an enlarged view of the structure at A;
FIG. 4 is a schematic front view of the gasket;
FIG. 5 is a schematic view of a vertical cross-section structure of the test pile at an inspection window;
fig. 6 is a schematic structural view of the support mechanism.
In the figure: 1. testing the pile body; 2. an inspection window mechanism; 3. a support mechanism; 4. checking the window; 5. a metal baffle plate; 6. a sealing groove; 7. a sealing strip; 8. a gasket; 9. a rubber ring; 10. a powerful magnetic block; 11. a rubber pad; 12. a strong magnetic plate; 13. a slide bar; 14. a chute; 15. a positioning ring; 16. a support bar; 17. a slide rail; 18. an air bag cover; 19. supporting the barrel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
As shown in fig. 1 to 5, a regional cathodic protection testing device for a natural gas station site includes a testing pile body 1, and further includes:
the inspection window mechanism 2 is characterized in that an inspection window 4 is formed in the outer wall of the testing pile body 1, a metal baffle 5 is rotatably mounted on one side of the inspection window 4, and the inspection window mechanism 2 comprises a sealing gasket 8 which is connected with the testing pile body 1 in a sliding mode and is detachably and hermetically wrapped outside the metal baffle 5; the inspection window mechanism 2 further comprises a sealing strip 7 which is fixedly connected in a sealing gasket 8 and is of an annular structure, a sealing groove 6 which is coaxial with the inspection window 4 is formed in the outer wall of the testing pile body 1, the outer diameter of the sealing groove 6 is larger than that of the metal baffle 5, and the sealing strip 7 is detachably connected with the sealing groove 6 in a sealing mode; the sealing strip 7 comprises a rubber ring 9 in an annular structure, a strong magnetic block 10 with the thickness smaller than that of the rubber ring 9 is embedded in the rubber ring 9, a strong magnetic plate 12 magnetically connected with the strong magnetic block 10 is embedded in the inner side of the sealing groove 6, a rubber pad 11 is fixedly connected to the outer side of the strong magnetic plate 12, and the sealing strip 7 is in magnetic sealing connection with the sealing groove 6; two sliding rods 13 in an L-shaped structure are parallelly installed on the end face of the inner side of the sealing gasket 8, a sliding groove 14 which is in an annular structure and used for limiting sliding of the sliding rods 13 is formed in the outer portion of the testing pile body 1, the distance between the two sliding rods 13 is larger than the longest diameter of the sealing strip 7, the two sliding rods 13 are vertically symmetrical about the horizontal center line of the sealing strip 7, the distance from the end face of the inner side of the sealing gasket 8 to the outer wall of the testing pile body 1 is smaller than the thickness of the rubber ring 9, and the thickness of the rubber ring 9 is larger than the distance from the end face;
the specific working process of this embodiment is as follows: the sealing gasket 8 slides along the annular sliding groove 14, and after the sealing gasket 8 and the metal baffle 5 are completely dislocated, the metal baffle 5 can be opened, and the wiring board in the test pile body 1 is inspected through the inspection window 4; by pulling the sealing gasket 8, the sliding rods 13 on the upper side and the lower side of the sealing gasket 8 slide along the sliding groove 14, the sealing strip 7 of the sealing gasket 8 abuts against the outer wall of the testing pile body 1 until the sealing strip 7 is completely clamped with the sealing groove 6 by pulling, and under the action of the powerful magnetic block 10 and the powerful magnetic plate 12, the sealing strip 7 abuts against the sealing groove 6 through rubber, so that the metal baffle 5 attached to the inspection window 4 is completely wrapped in a cavity formed by the annular sealing strip 7 and the outer wall of the testing pile body 1; thereby achieving sealing of the inspection window 4;
in this embodiment, through the mode of horizontal slip, not only easy operation is convenient, does not need locking Assembly's setting moreover, both can accomplish inspection window 4's sealed to reduce the rainwater and have the possibility that inspection window 4 leaks into, improved inspection window 4 and opened high efficiency and convenience of inspection operation.
Example two
As shown in fig. 1 and fig. 6, a regional cathodic protection testing device for a natural gas station site includes a testing pile body 1, and further includes:
the supporting mechanism 3 comprises a supporting barrel 19 which is sleeved at the bottom of the testing pile body 1, and the supporting barrel 19 limits the vertical movement of the testing pile body 1;
the air bag sleeve 18 is arranged in the supporting barrel 19, the air bag sleeve 18 is sleeved outside the testing pile body 1, and the inner wall and the outer wall of the air bag sleeve 18 are respectively attached to the testing pile body 1 and the inner wall of the supporting barrel 19;
the bottom of the supporting barrel 19 is fixedly connected with the ground, and supporting legs fixedly connected with the ground are obliquely arranged on two sides of the supporting barrel 19; the top of the supporting barrel 19 is provided with a sliding rail 17 in an annular structure, the outer wall of the testing pile body 1 is provided with a threaded ring structure, the testing pile body 1 is connected with a positioning ring 15 in a threaded manner, two sides of the positioning ring 15 are fixedly connected with supporting rods 16, and the extending ends of the two groups of supporting rods 16 slide in the sliding rail 17 to limit the up-and-down movement of the testing pile body 1; the bottom of the air bag sleeve 18 is fixedly connected with the inner wall of the supporting barrel 19, and the top of the air bag sleeve 18 is fixedly connected with the positioning ring 15; the air bag sleeve 18 is made of rubber air bag material, and the length of the air bag sleeve 18 is equal to the distance between the bottom of the air bag sleeve 18 and the positioning ring 15;
the specific working process of this embodiment is as follows: the testing pile body 1 is inserted into the supporting barrel 19 and then is inserted into the air bag sleeve 18 to be slidably penetrated through the positioning ring 15, when the ring 15 to be positioned slides to the thread structure of the testing pile, the positioning ring 15 is rotated to realize locking between the testing pile body 1 and the positioning ring 15, so that the vertical height of the testing pile body 1 is limited;
in the embodiment, the supporting barrel 19 is sleeved at the bottom of the testing pile body 1, the supporting barrel 19 is fixedly contacted with the ground, and the supporting barrel 19 is contacted with the outside above the ground, so that the possibility of corrosion damage to the bottom of the testing pile body 1 is greatly reduced; meanwhile, the arrangement of the air bag sleeve 18 and the air bag sleeve 18 are respectively abutted against the inner walls of the testing pile body 1 and the supporting barrel 19 so as to buffer the force of the testing pile body 1 in the horizontal direction, improve the impact resistance of the testing pile and prolong the service life of the testing pile.
EXAMPLE III
As shown in fig. 1-6, a regional cathodic protection testing device for a natural gas station site includes a testing pile body 1, and further includes:
the inspection window mechanism 2 is characterized in that an inspection window 4 is formed in the outer wall of the testing pile body 1, a metal baffle 5 is rotatably mounted on one side of the inspection window 4, and the inspection window mechanism 2 comprises a sealing gasket 8 which is connected with the testing pile body 1 in a sliding mode and is detachably and hermetically wrapped outside the metal baffle 5; the inspection window mechanism 2 further comprises a sealing strip 7 which is fixedly connected in a sealing gasket 8 and is of an annular structure, a sealing groove 6 which is coaxial with the inspection window 4 is formed in the outer wall of the testing pile body 1, the outer diameter of the sealing groove 6 is larger than that of the metal baffle 5, and the sealing strip 7 is detachably connected with the sealing groove 6 in a sealing mode; the sealing strip 7 comprises a rubber ring 9 in an annular structure, a strong magnetic block 10 with the thickness smaller than that of the rubber ring 9 is embedded in the rubber ring 9, a strong magnetic plate 12 magnetically connected with the strong magnetic block 10 is embedded in the inner side of the sealing groove 6, a rubber pad 11 is fixedly connected to the outer side of the strong magnetic plate 12, and the sealing strip 7 is in magnetic sealing connection with the sealing groove 6; two sliding rods 13 in an L-shaped structure are parallelly installed on the end face of the inner side of the sealing gasket 8, a sliding groove 14 which is in an annular structure and used for limiting sliding of the sliding rods 13 is formed in the outer portion of the testing pile body 1, the distance between the two sliding rods 13 is larger than the longest diameter of the sealing strip 7, the two sliding rods 13 are vertically symmetrical about the horizontal center line of the sealing strip 7, the distance from the end face of the inner side of the sealing gasket 8 to the outer wall of the testing pile body 1 is smaller than the thickness of the rubber ring 9, and the thickness of the rubber ring 9 is larger than the distance from the end face;
the supporting mechanism 3 comprises a supporting barrel 19 which is sleeved at the bottom of the testing pile body 1, and the supporting barrel 19 limits the vertical movement of the testing pile body 1;
the air bag sleeve 18 is arranged in the supporting barrel 19, the air bag sleeve 18 is sleeved outside the testing pile body 1, and the inner wall and the outer wall of the air bag sleeve 18 are respectively attached to the testing pile body 1 and the inner wall of the supporting barrel 19;
the bottom of the supporting barrel 19 is fixedly connected with the ground, and supporting legs fixedly connected with the ground are obliquely arranged on two sides of the supporting barrel 19; the top of the supporting barrel 19 is provided with a sliding rail 17 in an annular structure, the outer wall of the testing pile body 1 is provided with a threaded ring structure, the testing pile body 1 is connected with a positioning ring 15 in a threaded manner, two sides of the positioning ring 15 are fixedly connected with supporting rods 16, and the extending ends of the two groups of supporting rods 16 slide in the sliding rail 17 to limit the up-and-down movement of the testing pile body 1; the bottom of the air bag sleeve 18 is fixedly connected with the inner wall of the supporting barrel 19, and the top of the air bag sleeve 18 is fixedly connected with the positioning ring 15; the air bag sleeve 18 is made of rubber air bag material, and the length of the air bag sleeve 18 is equal to the distance between the bottom of the air bag sleeve 18 and the positioning ring 15;
in the embodiment, the rain leakage prevention protection is carried out on the inspection window 4 of the test pile, so that the phenomenon that the circuit test is unstable due to the water seepage of the wiring board at the inspection window 4 is reduced, and the use safety and stability of the test pile are improved; the bottom of test stake simultaneously receives the protection of support bucket 19 to reduce the direct and foreign matter contact of test stake bottom, reduce the possibility that the test stake is corroded damage, test stake body 1 can with the convenient dismouting of supporting mechanism 3, so that the change of gasbag cover 18 is used, prevent that gasbag cover 18 from running gas influence the buffering guard action to the test stake, thereby realized a life height, used the regional cathodic protection's of natural gas station field test stake convenient and stable.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a regional cathodic protection testing arrangement in natural gas station field, includes test stake body (1), its characterized in that still includes:
the inspection window mechanism (2), an inspection window (4) is arranged on the outer wall of the testing pile body (1), a metal baffle (5) is rotatably installed on one side of the inspection window (4), the inspection window mechanism (2) comprises a sealing gasket (8) which is in sliding connection with the testing pile body (1) and is detachably sealed and wrapped outside the metal baffle (5);
the supporting mechanism (3) comprises a supporting barrel (19) sleeved at the bottom of the testing pile body (1), and the supporting barrel (19) limits the vertical movement of the testing pile body (1);
gasbag cover (18), gasbag cover (18) set up in supporting bucket (19), gasbag cover (18) cover is established outside test stake body (1), the interior outer wall of gasbag cover (18) is laminated with test stake body (1) and support bucket (19) inner wall respectively.
2. The regional cathodic protection testing device of a natural gas station as claimed in claim 1, wherein the inspection window mechanism (2) further comprises a sealing strip (7) which is fixedly connected in the sealing gasket (8) and has an annular structure, the outer wall of the testing pile body (1) is provided with a sealing groove (6) which is coaxial with the inspection window (4), the outer diameter of the sealing groove (6) is larger than the outer diameter of the metal baffle (5), and the sealing strip (7) is detachably connected with the sealing groove (6) in a sealing manner.
3. The regional cathodic protection testing device of a natural gas station field according to claim 1, characterized in that the sealing strip (7) comprises a rubber ring (9) with an annular structure, a powerful magnetic block (10) with a thickness smaller than that of the rubber ring (9) is embedded in the rubber ring (9), a powerful magnetic plate (12) magnetically connected with the powerful magnetic block (10) is embedded in the sealing groove (6), a rubber pad (11) is fixedly connected to the outside of the powerful magnetic plate (12), and the sealing strip (7) and the sealing groove (6) are connected through magnetic sealing.
4. The regional cathodic protection testing device for the natural gas station as claimed in claim 1, wherein two sliding rods (13) with L-shaped structures are installed on the inner side end surface of the sealing gasket (8) in parallel, and a sliding groove (14) with an annular structure for limiting sliding of the sliding rod (13) is arranged outside the testing pile body (1).
5. The regional cathodic protection testing device for natural gas stations is characterized in that the distance between the two sliding rods (13) is larger than the longest diameter of the sealing strip (7), and the two sliding rods (13) are vertically symmetrical about the horizontal center line of the sealing strip (7).
6. The regional cathodic protection testing device of a natural gas station as claimed in claim 1, wherein the distance from the inner side end face of the sealing gasket (8) to the outer wall of the testing pile body (1) is less than the thickness of the rubber ring (9), and the thickness of the rubber ring (9) is greater than the distance from the inner side end face of the sealing gasket (8) to the sealing groove (6).
7. The regional cathodic protection testing device for the natural gas station field according to claim 1, wherein the bottom of the supporting barrel (19) is fixedly connected with the ground, and supporting legs fixedly connected with the ground are obliquely arranged on two sides of the supporting barrel (19).
8. The regional cathodic protection testing device for the natural gas station yard according to claim 1, wherein a sliding rail (17) with an annular structure is opened at the top of the supporting barrel (19), the outer wall of the testing pile body (1) is provided with a thread ring structure, the testing pile body (1) is connected with a positioning ring (15) in a threaded manner, supporting rods (16) are fixedly connected to two sides of the positioning ring (15), and the extending ends of the two groups of supporting rods (16) slide in the sliding rail (17) to limit the up-and-down movement of the testing pile body (1).
9. The regional cathodic protection testing device for natural gas stations is characterized in that the bottom of the air bag sleeve (18) is fixedly connected with the inner wall of the supporting barrel (19), and the top of the air bag sleeve (18) is fixedly connected with the positioning ring (15).
10. The regional cathodic protection testing device for natural gas stations is characterized in that the air bag sleeve (18) is made of rubber air bag material, and the length of the air bag sleeve (18) is equal to the distance between the bottom of the air bag sleeve (18) and the positioning ring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010994930.9A CN112126934B (en) | 2020-09-21 | 2020-09-21 | Regional cathodic protection testing arrangement of natural gas station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010994930.9A CN112126934B (en) | 2020-09-21 | 2020-09-21 | Regional cathodic protection testing arrangement of natural gas station |
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| CN112126934A true CN112126934A (en) | 2020-12-25 |
| CN112126934B CN112126934B (en) | 2022-07-08 |
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| CN207608633U (en) * | 2017-12-25 | 2018-07-13 | 重庆特胜机电设备有限公司 | A kind of cathodic protection test pile |
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| CN109972150A (en) * | 2019-05-16 | 2019-07-05 | 重庆市机电设计研究院 | A kind of test pile for cathodic protection detection |
| CN209584377U (en) * | 2019-01-07 | 2019-11-05 | 华润燃气（郑州）市政设计研究院有限公司 | A kind of cathodic protection test pile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3339415A (en) * | 1963-04-19 | 1967-09-05 | Elektro Watt Elek Sche Und Ind | Device for protection from and detection of leaks in pipelines conveying liquids or gases |
| US20060070871A1 (en) * | 2004-10-04 | 2006-04-06 | Bushman James B | Cathodic protection system for underground storage tank |
| CN202090060U (en) * | 2011-05-30 | 2011-12-28 | 重庆市机电设计研究院 | Cathode protection test pile for underground gas pipeline |
| CN203034102U (en) * | 2012-11-12 | 2013-07-03 | 中国石油天然气股份有限公司 | Glass reinforced plastic test pile |
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| Publication number | Publication date |
|---|---|
| CN112126934B (en) | 2022-07-08 |
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