CN116006786A - Petroleum pipeline leakage-proof protection device - Google Patents
Petroleum pipeline leakage-proof protection device Download PDFInfo
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- CN116006786A CN116006786A CN202310299655.2A CN202310299655A CN116006786A CN 116006786 A CN116006786 A CN 116006786A CN 202310299655 A CN202310299655 A CN 202310299655A CN 116006786 A CN116006786 A CN 116006786A
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- buffer
- petroleum pipeline
- nail
- plate
- protection device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The invention relates to petroleum pipeline related equipment, in particular to a petroleum pipeline leakage-proof protection device, which comprises a buffer device arranged outside a petroleum pipeline suspension section, wherein the buffer device comprises a plurality of buffer plates distributed along the outer wall of the petroleum pipeline, the outer wall of the petroleum pipeline is provided with a force unloading plate matched with the buffer plates, the buffer plates are perpendicular to the force unloading plate, a supporting device is arranged between the force unloading plate and the buffer plates, the buffer plates are at least distributed on the side part and the lower part of the petroleum pipeline, the buffer plates are perpendicular to the force unloading plate, the buffer plates are laterally vertical and have good bending resistance, impact force is transmitted to the force unloading plate through the buffer plates, the damage to the petroleum pipeline is reduced, the buffer plates are connected with an animal driving device, the animal driving device comprises nails arranged on the buffer plates, the nail tips are outwards arranged, and the buffer device can be installed at the position with higher animal appearance probability in the process of the action of the buffer plates.
Description
Technical Field
The invention relates to petroleum pipeline related equipment, in particular to a petroleum pipeline leakage-proof protection device.
Background
Petroleum pipelines are important channels for petroleum crude oil transportation, and comprise buried petroleum pipelines and overhead petroleum pipelines, wherein the buried petroleum pipelines are high in construction difficulty, high in maintenance cost and easy to be polluted by water and the like, and the overhead petroleum pipelines are relatively simple to construct, but are greatly influenced by liquid flow impact vibration and thermal shock due to the existence of more suspended parts, and are greatly influenced by collision risks, and the liquid flow impact vibration and collision easily lead to loosening of joints, so that leakage is caused.
To reduce the risk of leakage caused by impact shock of liquid flow, those skilled in the art usually use means to control the pressure in the pipeline, in particular the pressure at the high point of the line is close to the maximum allowable movement pressure (MAOP), the pressure at the high point of the line is close to the Saturated Vapor Pressure (SVP) of the oil product to be transported, the pressure at the inlet is close to the Net Positive Suction Head (NPSH), more flow detection points are designed on the pipeline, at the same time, a more stable supporting structure is provided, a more optimized joint connection structure is designed, a pipe structure capable of being replaced more quickly is researched, pipeline materials and coatings capable of preventing small molecule corrosion are developed, a cleaning device layer capable of cleaning the fouling in the pipe is designed, and the like, so that great help is provided for the stable operation of the petroleum pipeline, the person skilled in the art wraps the heat insulation layer outside the pipeline, the heat preservation layer is generally made of heat preservation cotton with the thickness of 25-40mm, the reflective layer is arranged outside the heat preservation layer, the good heat insulation effect can be achieved, thermal shock resistance is achieved, preliminary collision protection can be carried out, nails are used for solving the problem of collision, in the installation process, shipping equipment which is not easy to collide is adopted, more marks are mainly arranged in the use process, substances which are easy to collide, such as houses, trees and the like are cleared, isolation nets are arranged at positions where animals easily appear, weeding is carried out in a certain range along a pipeline, an acousto-optic drive separation device, a planning patrol device, a fixed point guard and the like are arranged for preventive protection, the sleeve pipe is arranged outside the petroleum pipeline, however, the suspended position of the petroleum pipeline is protected through the sleeve pipe device, the whole weight is heavy, and more connecting positions cannot be provided, therefore, a sleeve is not generally selected for carrying out anti-collision protection on the petroleum pipeline.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a petroleum pipeline leakage-proof protection device capable of carrying out local animal collision prevention protection on a petroleum pipeline.
The invention is realized by the following technical scheme: the utility model provides a petroleum pipeline leak protection device, includes the setting at the outside buffer of petroleum pipeline unsettled section, under the normality, buffer parcel is in the heat preservation, buffer includes a plurality of buffer boards of following petroleum pipeline outer wall distribution, and petroleum pipeline outer wall is provided with and unloads the power board with buffer board matched with, the buffer board is perpendicular with unloading the power board, it is provided with strutting arrangement to unload between power board and the buffer board, the buffer board distributes at least in petroleum pipeline's lateral part and lower part, the buffer board is connected with the animal and drives away the device, the animal drives away the nail that the device is including setting up on the buffer board, the nail point is outside, set up to, the in-process that the buffer board acted can make the nail outwards stretch out.
Further, the force unloading plate comprises a base, a boss is arranged on the base, and a groove matched with the buffer plate is arranged on the boss.
Further, be provided with the nail hole that is used for passing the nail on the buffer board, the lateral part of nail is provided with the elastic component, under the normality, the elastic component is compressed in the nail hole, and the elastic component can prevent the nail from moving backwards with nail hole tip cooperation after breaking away from the nail hole along with the nail action, nail and the cooperation of unloading the power board.
Further, the supporting device comprises a through hole arranged on the side wall of the buffer plate, and the supporting device comprises a supporting rod penetrating between two adjacent buffer plates through the through hole.
Further, the bracing piece is cyclic annular, the bracing piece has many, and many bracing pieces are along the length direction interval setting of buffer board.
Further, the support bar is a rigid bar.
Further, the supporting rod is an elastic rod, the supporting rod comprises an elastic core rod, and a tearing-resistant layer is arranged outside the elastic core rod.
Further, the support device includes a return spring disposed between the buffer plate and the force-unloading plate.
The invention has the beneficial effects that: petroleum pipeline leak protection device, including setting up at the outside buffer of the unsettled section of petroleum pipeline, under the normality, buffer parcel is in the heat preservation, and the heat preservation includes heat preservation cotton and reflector layer, and buffer parcel is in the heat preservation, can avoid destroying the reflector layer, can judge whether petroleum pipeline receives the collision through long-range observation reflector layer, conveniently maintains, buffer includes a plurality of buffer plates that distribute along petroleum pipeline outer wall, and petroleum pipeline outer wall is provided with and unloads the power board with buffer plate matched with, the buffer plate is perpendicular with unloading the power board, it is provided with strutting arrangement to unload between power board and the buffer plate, the buffer plate distributes at least in the lateral part of petroleum pipeline and lower part, because the outside collision of aerial petroleum pipeline mainly is by the animal and the animal collision mainly appears as the mistake collision, rubs and itches etc. with the buffer plate setting in the position down in leaning on, can be under the circumstances of control weight, the buffer plate is abundant with the power board, and buffer plate side stand up, has better bending resistance ability, and with impact force transmission to unloading the power board through the buffer plate, destroy the animal and reduce and to the animal and be connected with the nail to the outside the animal, can be in the outside the device, the nail can be more stretch out to the outside the device, the nail can be driven to the outside the nail if the animal is out.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1;
FIG. 2 is a schematic diagram of an exploded view of embodiment 1;
FIG. 3 is a schematic diagram of the connection between a buffer plate and a force-releasing plate;
FIG. 4 is a schematic view in front elevation of a staple;
FIG. 5 is a schematic cross-sectional view of a support rod according to example 2;
FIG. 6 is a schematic cross-sectional view of a second support rod according to example 2;
FIG. 7 is a schematic cross-sectional view of a third support bar according to example 2;
FIG. 8 is a schematic diagram of the connection between the petroleum pipeline and the buffer device in example 3;
FIG. 9 is a schematic diagram of the connection between the buffer plate and the force-releasing plate according to example 3.
Wherein: 1. a light reflecting layer; 2. a heat preservation cotton layer; 3. petroleum pipeline; 4. a force-unloading plate; 5. a buffer plate; 6. a support rod; 7. a boss; 8. a groove; 9. a through hole; 10. a nail sleeve; 11. nailing; 12. a limit spring; 13. steel strand; 14. compressing the sponge layer; 15. a cotton cloth layer; 16. a styrene-butadiene rubber core; 17. a limit column; 18. A guide post; 19. a return spring; 20. a buffer spring; 21. a sponge core; 22. a filling layer; 23. positioning holes; 24. a core wire.
Detailed Description
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1-4, a petroleum pipeline leakage protection device comprises a buffer device arranged outside a suspension section of a petroleum pipeline 3, the buffer device is wrapped in a heat preservation layer in a normal state, the heat preservation layer comprises a heat preservation cotton layer 2 and a reflecting layer 1, the buffer device is wrapped in the heat preservation layer, the reflecting layer 1 can be prevented from being damaged, the heat preservation cotton layer 2 is foaming sponge, the reflecting layer 1 is an aluminum foil layer, the thickness is 2mm, an acrylic emulsion layer is coated on the surface of the aluminum foil layer, the coating thickness is 0.5-1mm, the oxidation speed of the aluminum foil layer is reduced, meanwhile, the petroleum pipeline 3 can be judged to be collided or not by the reflecting layer 1, the maintenance is convenient, the petroleum pipeline 3 can be subjected to preliminary anti-collision buffer protection through the heat preservation layer, and a waterproof felt layer is also required to be arranged between the heat preservation cotton layer 2 and the reflecting layer 1.
The buffer device comprises a plurality of buffer plates 5 distributed along the outer wall of the petroleum pipeline 3, in the embodiment, the buffer plates 5 are arranged along the length direction of the petroleum pipeline 3, the buffer plates 5 are aluminum alloy plates or steel plates, the thickness of the buffer plates 5 is 8-12mm, the height is 20mm, the length is greater than 1m, the outer wall of the petroleum pipeline 3 is welded and fixed with a force-unloading plate 4 matched with the buffer plates 5, the buffer plates 5 are perpendicular to the force-unloading plate 4, the force-unloading plate 4 comprises a base, a boss 7 is arranged on the base, a groove 8 matched with the buffer plates 5 is arranged on the boss 7, in the embodiment, the base, the boss 7 and the groove 8 are integrally formed into a steel piece through extrusion molding, wherein the thickness of the base is 4-5mm, the width is 16-20mm, the bending strength of the force-unloading plate 4 can be ensured under the condition of reducing the total weight through the boss 7, the force-unloading plate 4 and the support device is arranged between the force-unloading plate 4 and the buffer plates 5, the buffer plates 5 are at least distributed on the side part and the lower part of the petroleum pipeline 3, in this embodiment, the buffer plates 5 are distributed on the side part, the side lower part and the lower part of the petroleum pipeline 3, the number of the buffer plates 5 at each part is selected according to the requirement, the reference data are the statistical data such as the number of animals in the region, the body shape and the like, and the bearing condition of the petroleum pipeline 3, the supporting device comprises a through hole 9 processed on the side wall of the buffer plates 5, the supporting device comprises a supporting rod 6 penetrating between two adjacent buffer plates 5 through the through hole 9, in this embodiment, the supporting rod 6 is a rigid rod, a steel pipe is specifically selected and fixed with the buffer plates 5 through a spot welding mode, the aperture of the through hole 9 is 12-14mm, in order to ensure the connection stability of the buffer plates 5 and the supporting rod 6, the buffer plates 5 are increased in height at the through hole 9, a larger basic area is provided for processing of the through hole 9, the buffer plate 5 has a plurality of through holes 9, the weight of the buffer plate 5 can be reduced under the condition of ensuring the bending strength of the buffer plate 5, a plurality of support rods 6 can be distributed along the length direction of the buffer plate 5 due to the plurality of through holes 9, and then a plurality of connecting plates are connected into a whole to form a buffer frame.
The buffer plate 5 is connected with an animal driving device, the animal driving device comprises nails 11 arranged on the buffer plate 5, the nails 11 are stainless steel nails, the tips of the nails 11 are outwards arranged, the nails 11 can outwards extend in the process of the action of the buffer plate 5, specifically, nail sleeves 10 are welded on the buffer plate 5, nail 11 holes are formed in the nail sleeves 10, the nails 11 can also be integrally formed through casting, the outer diameter of the nails 11 is 8-10mm, the wall thickness of the nail sleeves 10 is 4mm, for convenient manufacture, the nail sleeves 10, through holes 9 and the buffer plate 5 are integrally cast, firstly, short pieces with the length of 400-500mm are manufactured, then the buffer plate 5 with the required length is obtained through welding and fixing, under normal conditions, the distance between the end parts of the nails 11 and the reflecting layer 1 is 8mm, elastic pieces are arranged on the side parts of the nails 11, under normal conditions, the elastic pieces are compressed in the nail 11 holes, for convenient manufacture, in the embodiment, the elastic pieces are limiting springs 12, the nail 11 is provided with a transverse limit spring hole at a corresponding position, the limit spring 12 is penetrated in the limit spring hole, the limit spring hole is positioned in the nail sleeve 10 under normal state, the nail 11 can slide along the nail sleeve 10, the elastic piece can be matched with the end part of the nail hole to prevent the nail 11 from backing after being separated from the nail hole along with the action of the nail 11, the nail 11 is matched with the force-unloading plate 4, the buffer plate 5 at the collided side is close to the force-unloading plate 4 in the action process, the nail 11 is pushed outwards, the limit spring hole is exposed out of the nail sleeve 10, the two ends of the limit spring 12 extend out of the nail sleeve 10 to prevent the nail 11 from backing, correspondingly, the extension length of the nail 11 is increased, the nail 11 can be sensed by the first collision of animals, the nail 11 can be sensed more quickly by the second collision of animals, the collision strength is reduced, the third collision is not performed, the reflecting layer 1 caused by the collision is deformed, the reflection layer can be observed at a distance, the petroleum pipeline leakage protection device provided by the embodiment can prevent animals from colliding with the petroleum pipeline 3 to a greater extent by tracking large animals and managing animal moving areas, and is protected at lower cost when the collision probability is relatively low.
In the petroleum pipeline leakage protection device provided by the embodiment, in the installation process, the joint and the supporting device with the leakage protection effect on the petroleum pipeline 3 are installed through the prior art, then the force unloading plate 4 and the buffer plate 5 are welded, in order to control the distance between the buffer plate 5 and the force unloading plate 4, the transverse positioning holes 23 are processed on the nails 11, the positioning holes 23 are positioned close to the force unloading plate 4, the limiting springs 12 are inserted into the positioning holes 23, then the supporting rods 6 are installed, after the supporting rods 6 are installed, the limiting springs 12 are pulled out, the nails 11 are pulled outwards, the limiting springs 12 are inserted into the limiting spring holes, then the nails 11 are inserted inwards, the limiting springs 12 are compressed in the nail holes, then the heat insulation cotton layer 2 is constructed, foaming sponge is selected, the foaming sponge fills the through holes 9, and gaps between the force unloading plate 4 and the buffer plate 5 are filled with the buffer frames, the buffer frames are positioned, then the reflecting layer 1 is constructed, and the leakage protection effect is further ensured by the implementation of the existing leakage protection detection technology.
It should be noted that in this embodiment, the two spacing springs 12 have different heights, the height spacing is 3-4mm, after the first spacing spring 12 exposes the nail 11 sleeve 10, the nail 11 is blocked to retract, the nail 11 extends for a length, and when the nail 11 is impacted again, if the impact force is larger, the nail 11 is blocked by the insulation cotton layer 2, further extends, is stopped by the second spacing spring 12, the extending length of the nail 11 is increased, and is more easily perceived by animals.
Example 2
As shown in fig. 5, unlike the embodiment 1, the support rod 6 is an elastic rod, and the support rod 6 includes an elastic core rod, and a tear-resistant layer is provided outside the elastic core rod.
According to the first embodiment, the steel stranded wires 13 are selected as the elastic core bars, the distance between two adjacent buffer plates 5 is 150-250mm, the outer diameter of each steel stranded wire 13 is 8-10mm, the elastic core bars have good elasticity, can be matched with the heat insulation cotton layer 2 to form good collision buffer, and can be automatically reset, the compression sponge layer 14 is arranged outside the steel stranded wires 13, so that the outer diameter of each supporting rod 6 is slightly larger than the aperture of the corresponding through hole 9, the supporting rods 6 are positioned through deformation of the compression sponge, the anti-tearing layer is sleeved outside the compression sponge layer 14 and is a cotton cloth layer 15, and damage of the through hole 9 to the compression sponge layer 14 can be reduced.
In the second embodiment, the elastic core rod is a styrene-butadiene rubber core 16, as shown in fig. 6, the outer diameter of the styrene-butadiene rubber core 16 is the same as the inner diameter of the through hole 9, the cotton cloth layer 15 is sleeved outside the styrene-butadiene rubber layer, the overall weight is smaller than that of the first embodiment, the elasticity is reduced, the resetting effect is slightly poor, the core wire 24 is embedded in the styrene-butadiene rubber core 16 by positioning between the elastic deformation of the styrene-butadiene rubber and the through hole 9, and the core wire 24 is one of steel wire, polyester and cotton fiber, so that the tensile strength of the styrene-butadiene rubber core 16 can be increased.
In the third embodiment, the elastic core rod includes a buffer spring 20, as shown in fig. 7, the buffer spring 20 has better elasticity, a sponge core 21 is coaxially installed in the buffer spring 20, a filling layer 22 is arranged outside the sponge core, the filling layer 22 is made of the same material as the white hot melt adhesive rod, ethylene-vinyl acetate copolymer is used as a main raw material, the elastic core rod has better elasticity, a spring ring of the buffer spring 20 is located in the filling layer 22, the deformation resistance is improved, and meanwhile, the engagement with the through hole 9 is avoided through the cooperation of the elastic core rod and the cotton cloth layer 15, so that the installation is convenient.
Unlike embodiment 1, the petroleum pipeline leakage protection device provided in this embodiment has the advantages that the mutual influence between the buffer plates 5 is small, and the buffer plates 5 can be automatically reset after the collision, so that the maintenance is convenient, and the defect is that the protection capability for the first collision is weak, the animal feeling nail 11 is used as the main protection mode, and the device is convenient to maintain and has low cost.
Example 3
As shown in fig. 8-9, unlike the embodiments 1 and 2, the support device includes a return spring 19 installed between the buffer plate 5 and the force-releasing plate 4, specifically, the buffer plate 5 has a length of 80-100mm, the force-releasing plate 4 and the buffer plate 5 have the same length, the buffer plate 5 has 3 nail holes, the nail 11 holes on both sides are penetrated with guide posts 18, the guide posts 18 are welded and fixed with the force-releasing plate 4, the nail 11 holes on the middle position are penetrated with nails 11, the return spring 19 is sleeved on the guide posts 18 and the nails 11, and in order to prevent the buffer plate 5 from separating from the force-releasing plate 4, the end of the guide post 18 is welded with a transverse limit post 17.
The petroleum pipeline leak protection device that this embodiment provided, the volume is less, according to design demand array distribution at petroleum pipeline 3 outer wall, and construction convenience can also be preassembled, and can buckle buffer board 5 into with petroleum pipeline 3 outer wall radian assorted shape, with petroleum pipeline 3's connection stability is high, and the shortcoming lies in weak to petroleum pipeline 3's anticollision protection, relies on animal perception nail 11 completely.
Under the condition that has controlled the petroleum pipeline 3 internal pressure, adopt the joint that has leak protection protect function among the prior art, then reduce the probability that the animal collided through modes such as guardrail, patrol, on duty, the rethread petroleum pipeline leak protection device that this application provided carries out collision protection to avoid the animal to be close to as main purpose, the probability that reduces petroleum pipeline 3 that can be very big leaks.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (8)
1. The utility model provides a petroleum pipeline leak protection device, its characterized in that, including setting up at the outside buffer of petroleum pipeline unsettled section, under the normality, buffer parcel is in the heat preservation, buffer includes a plurality of buffer boards that distribute along petroleum pipeline outer wall, and petroleum pipeline outer wall is provided with and unloads the power board with buffer board matched with, the buffer board is perpendicular with unloading the power board, it is provided with strutting arrangement to unload between power board and the buffer board, the buffer board distributes at least at petroleum pipeline's lateral part and lower part, the buffer board is connected with the animal and drives away the device, the animal drives away the device and including setting up the nail on the buffer board, the nail point is outside, set up to, the in-process that the buffer board was moved can make the nail outwards stretch out.
2. The petroleum pipeline leakage protection device according to claim 1, wherein the force unloading plate comprises a base, a boss is arranged on the base, and a groove matched with the buffer plate is arranged on the boss.
3. The petroleum pipeline leakage protection device according to claim 1, wherein the buffer plate is provided with a nail hole for penetrating through a nail, an elastic piece is arranged on the side part of the nail, the elastic piece is compressed in the nail hole in a normal state, the elastic piece can be matched with the end part of the nail hole to prevent the nail from retreating after being separated from the nail hole along with the action of the nail, and the nail is matched with the force unloading plate.
4. The petroleum pipeline leakage protection device of claim 1, wherein the support means comprises a through hole provided in a side wall of the buffer plate, and the support means comprises a support rod penetrating between two adjacent buffer plates through the through hole.
5. The petroleum pipeline leakage protection device according to claim 4, wherein the support rods are annular, and a plurality of support rods are arranged at intervals along the length direction of the buffer plate.
6. The petroleum pipeline leak protection apparatus of claim 5, wherein the support bar is a rigid bar.
7. The petroleum pipeline leakage protection device according to claim 5, wherein the support rod is an elastic rod, the support rod comprises an elastic core rod, and a tearing-resistant layer is arranged outside the elastic core rod.
8. A petroleum pipeline leakage protection device according to claim 3, wherein the support means comprises a return spring disposed between the buffer plate and the force release plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310299655.2A CN116006786A (en) | 2023-03-25 | 2023-03-25 | Petroleum pipeline leakage-proof protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310299655.2A CN116006786A (en) | 2023-03-25 | 2023-03-25 | Petroleum pipeline leakage-proof protection device |
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| Publication Number | Publication Date |
|---|---|
| CN116006786A true CN116006786A (en) | 2023-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310299655.2A Withdrawn CN116006786A (en) | 2023-03-25 | 2023-03-25 | Petroleum pipeline leakage-proof protection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN116006786A (en) |
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| KR20130015283A (en) * | 2011-08-03 | 2013-02-14 | 윤관영 | A pipeline guard for crime prevention |
| CN207527153U (en) * | 2017-11-22 | 2018-06-22 | 蒲靓春 | A kind of petroleum transportation pipeline with double-layer structure |
| CN212203570U (en) * | 2020-06-11 | 2020-12-22 | 王永东 | Pipeline protection device for oil exploitation |
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| CN213685826U (en) * | 2020-11-20 | 2021-07-13 | 天津市斯特斯通石油技术有限公司 | Petroleum pipeline sleeve |
| CN214579421U (en) * | 2021-04-15 | 2021-11-02 | 李珏琦 | Special pipeline for oil and gas exploitation |
| CN215635752U (en) * | 2021-06-25 | 2022-01-25 | 桐乡大诚筒管股份有限公司 | High wear-resisting PE pipe for gas |
| CN215831330U (en) * | 2021-08-21 | 2022-02-15 | 浙江洁水管道科技有限公司 | High stability PE pipe |
| WO2022094849A1 (en) * | 2020-11-05 | 2022-05-12 | 徐州鑫隆管业有限公司 | Low-temperature-resistant and impact-resistant pvc pipeline |
| CN114704713A (en) * | 2022-04-01 | 2022-07-05 | 河北元丰管道工程有限公司 | Polyurethane insulating tube with withstand voltage anticollision |
-
2023
- 2023-03-25 CN CN202310299655.2A patent/CN116006786A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130015283A (en) * | 2011-08-03 | 2013-02-14 | 윤관영 | A pipeline guard for crime prevention |
| CN207527153U (en) * | 2017-11-22 | 2018-06-22 | 蒲靓春 | A kind of petroleum transportation pipeline with double-layer structure |
| CN212203570U (en) * | 2020-06-11 | 2020-12-22 | 王永东 | Pipeline protection device for oil exploitation |
| CN212564771U (en) * | 2020-07-16 | 2021-02-19 | 浙江中德实业有限公司 | Industrial PP-R cold and hot water conveying pipe |
| WO2022094849A1 (en) * | 2020-11-05 | 2022-05-12 | 徐州鑫隆管业有限公司 | Low-temperature-resistant and impact-resistant pvc pipeline |
| CN213685826U (en) * | 2020-11-20 | 2021-07-13 | 天津市斯特斯通石油技术有限公司 | Petroleum pipeline sleeve |
| CN214579421U (en) * | 2021-04-15 | 2021-11-02 | 李珏琦 | Special pipeline for oil and gas exploitation |
| CN215635752U (en) * | 2021-06-25 | 2022-01-25 | 桐乡大诚筒管股份有限公司 | High wear-resisting PE pipe for gas |
| CN215831330U (en) * | 2021-08-21 | 2022-02-15 | 浙江洁水管道科技有限公司 | High stability PE pipe |
| CN114704713A (en) * | 2022-04-01 | 2022-07-05 | 河北元丰管道工程有限公司 | Polyurethane insulating tube with withstand voltage anticollision |
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