CN112833270B - Natural gas conveying pipeline - Google Patents
Natural gas conveying pipeline Download PDFInfo
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- CN112833270B CN112833270B CN202110169938.6A CN202110169938A CN112833270B CN 112833270 B CN112833270 B CN 112833270B CN 202110169938 A CN202110169938 A CN 202110169938A CN 112833270 B CN112833270 B CN 112833270B
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- Prior art keywords
- cavity
- pipe body
- natural gas
- lining
- inner pipe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
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- 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
- F16L53/70—Cooling of pipes or pipe systems
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- 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
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeve, two half sleeves
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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
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a natural gas conveying pipeline, and relates to the technical field of natural gas conveying pipelines. The coaxial-distribution type vacuum tube comprises an outer tube body and an inner tube body, wherein the inner tube body is coaxially distributed in the outer tube body, a cavity is formed between the outer tube body and the inner tube body, and ports on two sides of the cavity are respectively sealed through two end covers; the outer side of the inner tube body is sleeved with a lining, the lining is located in the cavity, and the lining divides the cavity into a first cavity and a second cavity. The inner pipe body is used for conveying natural gas, the outer pipe body is sleeved on the outer side of the inner pipe body, and the cavity is formed, so that the temperature is blocked, the heat preservation effect is realized, the influence of external temperature on the gas pressure in the inner pipe body is reduced, and the stability of the natural gas conveying process is ensured.
Description
Technical Field
The invention belongs to the technical field, and particularly relates to a natural gas conveying pipeline.
Background
Natural gas is a high-quality fuel and a chemical raw material. For convenience of transportation, natural gas produced from oil fields is compressed into liquid and then transported through pipelines. Liquefied natural gas has certain viscosity, and current natural gas transport pipe's thermal insulation performance is poor, influences the normal transportation of natural gas very easily when the very low time like the winter of external environment temperature, and natural gas takes place to leak at the in-process of carrying in addition, is not convenient for perceive.
Disclosure of Invention
The invention aims to provide a natural gas conveying pipeline, which is used for conveying natural gas through an inner pipe body, wherein an outer pipe body is sleeved on the outer side of the inner pipe body, and a cavity is formed, so that the effects of blocking temperature and preserving heat are achieved, the influence of external temperature on the gas pressure in the inner pipe body is reduced, the stability of the natural gas conveying process is ensured, and the related problems in the background art are solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a natural gas conveying pipeline which comprises an outer pipe body and an inner pipe body, wherein the inner pipe body is coaxially distributed in the outer pipe body, a cavity is formed between the outer pipe body and the inner pipe body, and ports on two sides of the cavity are respectively sealed through two end covers; the outer side of the inner tube body is sleeved with a lining, the lining is located in the cavity, and the lining divides the cavity into a first cavity and a second cavity.
Further, the bushing includes a spacer portion, a bellows, and a moving portion; the two adjacent corrugated pipes are connected through a spacing part, the outer ends of the corrugated pipes at the two ends are connected with a moving part, and the spacing part, the corrugated pipes and the moving part form an integral part; and a second press switch is arranged between the moving part and the end cover.
Furthermore, a plurality of balls are uniformly distributed on the spacing part, and the inner side cavity of each ball is communicated with the annular groove formed in the spacing part through an air inlet channel; meanwhile, a contraction component is arranged in the ball body, and the end part of the contraction component extends into the annular groove; the annular groove and the second cavity are divided by a sealing component.
Furthermore, the retraction assembly comprises a support rod, a compression spring, a top block, a sealing block, a connecting block and a movable seat; the two supporting rods are symmetrically distributed, meanwhile, the same end of each of the two supporting rods is hinged with a connecting block, the connecting block positioned on the upper side can extrude a first press switch arranged on the outer pipe body, and the connecting block positioned on the lower side pushes a moving seat arranged in the air inlet channel in a sliding mode to move; the air inlet channel is characterized in that a sealing block is matched in the moving seat and closely attached to the side wall of the air inlet channel, a compression spring is installed on one side of the moving seat, and a top block is connected to the bottom of the compression spring.
Furthermore, the bracing piece constitutes for two bent shape branches interconnect, connects through tension spring between two bent shape branches simultaneously.
Further, the seal assembly includes an elastic rod and a seal cap; and a through hole communicated with the second cavity is formed in the annular groove wall of the spacing part, the end part of the through hole close to the second cavity is arranged on the sealing cover, and an elastic rod connected with the sealing cover is arranged in the through hole.
Furthermore, two frameworks are symmetrically arranged in the light hole inside the moving part, and a sealed cavity is formed between the two frameworks; and rollers are rotatably arranged in the framework.
The invention has the following beneficial effects:
1. the inner pipe body is used for conveying natural gas, the outer pipe body is sleeved on the outer side of the inner pipe body, a cavity is formed, the temperature is blocked, the heat preservation effect is realized, the influence of external temperature on the gas pressure in the inner pipe body is reduced, and the stability of the natural gas conveying process is ensured; in addition, the outer side of the inner pipe body is sleeved with the lining, the cavity is divided into a first cavity and a second cavity, water is filled into the first cavity, heat dissipation of the outer pipe body is achieved, the influence of external temperature on the outer pipe body is reduced, and the vacuum heat preservation effect is improved in the second cavity.
2. When the local leakage of the pipe body occurs, the leaked natural gas enters the second cavity, so that the volume of the second cavity is increased, the water in the first cavity is extruded, and meanwhile, the water pushes the ball extending into the first cavity to contract, so that the spacing part is increased, the local area is sealed, the leakage of the natural gas is effectively relieved, and the rescue waiting time is prolonged.
3. The contracted ball body pushes the supporting rod arranged in the ball body to contract, the connecting block connected with the end part of the supporting rod pushes the sealing block, gas in the ball body enters the ring groove by contraction, the ball body is ensured to be in an extension state, different areas are ensured to be sealed, and meanwhile, the other connecting block connected with the end part of the deformed supporting rod pushes the corresponding push switch to extrude to realize alarming.
Of course, it is not necessary for any product to practice the invention 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 are briefly introduced below, and it is obvious that the drawings in the description below 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 the present invention;
FIG. 2 is a schematic overall sectional structure of the present invention;
FIG. 3 is an enlarged schematic view of FIG. 2 at A according to the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 3 at C according to the present invention;
FIG. 5 is an enlarged view of FIG. 3;
FIG. 6 is an enlarged view of the structure at B of FIG. 2 according to the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-outer tube, 2-end cap, 3-inner tube, 4-bushing, 401-spacer, 4011-sphere, 4012-support rod, 4013-compression spring, 4014-top block, 4015-seal block, 4016-tension spring, 4017-connection block, 4018-moving seat, 402-bellows, 403-moving part, 4031-unthreaded hole, 4032-framework, 4033-roller, 4034-seal cavity, 5-cavity, 501-cavity one, 502-cavity two, 6-push switch one, 7-push switch two, 8-seal assembly, 801-through hole, 802-elastic rod, 803-seal cap.
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.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
Referring to fig. 1-6, the present invention is a natural gas pipeline, including an outer pipe 1 and an inner pipe 3, the outer pipe 1 is internally installed with the inner pipe 3 coaxially distributed, a cavity 5 is formed between the outer pipe 1 and the inner pipe 3, and two side ports of the cavity 5 are respectively sealed by two end caps 2;
the outer side of the inner tube body 3 is sleeved with a lining 4, the lining 4 is positioned in the cavity 5, and the cavity 5 is divided into a first cavity 501 and a second cavity 502 by the lining 4.
The inner pipe body 3 is used for conveying natural gas, the outer pipe body 1 is sleeved on the outer side of the inner pipe body 3, a cavity 5 is formed, the temperature is blocked, the heat preservation effect is realized, the influence of external temperature on the gas pressure in the inner pipe body 3 is reduced, and the stability of the natural gas conveying process is ensured; in addition, the outer side of the inner pipe body 3 is sleeved with the lining 4, the cavity 5 is divided into a first cavity 501 and a second cavity 502, water is filled into the first cavity 501, heat dissipation of the outer pipe body 1 is achieved, the influence of external temperature on the outer pipe body is reduced, and the vacuum heat preservation effect is achieved in the second cavity 502.
The bushing 4 comprises a spacing part 401, a corrugated pipe 402 and a moving part 403, and the spacing part 401, the corrugated pipe 402 and the moving part 403 are all rubber pieces so as to be convenient to deform;
two adjacent corrugated pipes 402 are connected through a spacing part 401, the outer ends of the corrugated pipes 402 at two ends are connected with a moving part 403, and the spacing part 401, the corrugated pipes 402 and the moving part 403 form an integral piece;
the partition 401 is a ring structure, and the partition 401 is fitted between the inner surface of the outer tube 1 and the outer surface of the inner tube 3.
A second push switch 7 is installed between the moving part 403 and the end cover 2, natural gas leakage occurs at the joint, the moving part 403 is pulled to move inwards, and the second push switch 7 is pulled to trigger an alarm.
A plurality of spheres 4011 are uniformly distributed on the partition part 401, and a cavity inside each sphere 4011 is communicated with a ring groove formed in the partition part 401 through an air inlet channel; meanwhile, a contraction component is arranged in the sphere 4011, and the end part of the contraction component extends into the annular groove;
the annular groove and the second cavity 502 are divided by the sealing component 8.
The retraction assembly comprises a support rod 4012, a compression spring 4013, a top block 4014, a sealing block 4015, a connecting block 4017 and a moving seat 4018;
the two supporting rods 4012 are symmetrically distributed, meanwhile, the same ends of the two supporting rods 4012 are hinged to connecting blocks 4017, the connecting block 4017 located on the upper side can extrude a first press switch 6 installed on the outer pipe body 1, and the connecting block 4017 located on the lower side pushes a moving seat 4018 which is installed in the air inlet channel in a sliding mode to move;
remove seat 4018 fit in has sealed piece 4015, and sealed piece 4015 closely laminates with the inlet channel lateral wall, removes one side of seat 4018 and installs compression spring 4013, and compression spring 4013 bottom is connected with kicking block 4014.
The supporting rod 4012 is formed by connecting two curved supporting rods, and the two curved supporting rods are connected through a tension spring 4016.
Seal assembly 8 includes a resilient stem 802 and a seal cap 803; the through hole 801 communicated with the second cavity 502 is formed in the annular groove wall of the partition part 401, the end, close to the second cavity 502, of the through hole 801 is mounted on the sealing cover 803, meanwhile, the elastic rod 802 connected with the sealing cover 803 is mounted in the through hole 801, and gas pressure in the annular groove of the partition part 401 is larger than gas pressure in the second cavity 502, so that the sealing cover 803 is pushed to move, the through hole 801 is opened, the annular groove of the partition part 401 flows into the second cavity 502, and meanwhile, only one-way flow can be achieved.
An internal optical aperture 4031 of the moving part 403, wherein two skeletons 4032 are symmetrically installed in the optical aperture 4031, and a sealed cavity 4034 is formed between the two skeletons 4032; a roller 4033 is rotatably mounted in the frame 4032.
When the local emergence of body is leaked, the natural gas of leakage gets into cavity two 502 to the volume of the two 502 of increase cavity extrudees the water in cavity 501, and the spheroid 4011 that the water promotion stretched into in cavity 501 simultaneously realizes the shrink, thereby makes interval 401 increase, realizes the sealed to local region, and the effectual leakage of alleviating the natural gas prolongs the latency of rescue. The spheroid 4011 of shrink promotes the bracing piece 4012 shrink of installation in the spheroid 4011, and the connecting block 4017 of the end connection of bracing piece 4012 pushes up and moves sealed block 4015, and the shrink realizes in the gaseous entering annular in the spheroid 4011, guarantees that spheroid 4011 is in the extension state, guarantees to seal different regions, and another connecting block 4017 of the bracing piece 4012 end connection that warp simultaneously pushes up and moves corresponding press switch 6 and extrude and realize reporting to the police.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., 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 (3)
1. A natural gas transportation pipeline, includes outer body (1) and interior body (3), its characterized in that:
the inner pipe body (3) which is distributed coaxially is arranged in the outer pipe body (1), a cavity (5) is formed between the outer pipe body (1) and the inner pipe body (3), and ports on two sides of the cavity (5) are sealed through two end covers (2) respectively;
a lining (4) is sleeved on the outer side of the inner pipe body (3), the lining (4) is located in the cavity (5), and the lining (4) divides the cavity (5) into a first cavity (501) and a second cavity (502);
the bushing (4) comprises a spacing part (401), corrugated pipes (402) and a moving part (403), two adjacent corrugated pipes (402) are connected through the spacing part (401), the outer ends of the corrugated pipes (402) at two ends are connected with the moving part (403), the spacing part (401), the corrugated pipes (402) and the moving part (403) form an integral piece, and a second push switch (7) is installed between the moving part (403) and the end cover (2);
a plurality of spheres (4011) are uniformly distributed on the spacing part (401), and a cavity inside the sphere (4011) is communicated with a ring groove formed on the spacing part (401) through an air inlet channel; meanwhile, a contraction component is installed in the sphere (4011), the end part of the contraction component extends into the annular groove, and the annular groove and the second cavity (502) are divided by a sealing component (8);
the shrink subassembly includes bracing piece (4012), compression spring (4013), kicking block (4014), sealed piece (4015), connecting block (4017) and removal seat (4018), two bracing piece (4012) symmetric distribution, two simultaneously the bracing piece (4012) articulates with one end has connecting block (4017), and the connecting block (4017) that is located the upside realizes squeezing press switch (6) of installation on external pipe body (1), and connecting block (4017) that is located the downside promotes air inlet channel slidable mounting's removal seat (4018) and moves, it has sealed piece (4015) to move seat (4018) fit in, sealed piece (4015) and air inlet channel lateral wall closely laminate, compression spring (4013) are installed to one side of removal seat (4018), compression spring (4013) bottom is connected with kicking block (4014);
the bracing piece (4012) constitutes for two bent shape branch interconnect, connects through tension spring (4016) between two bent shape branch simultaneously.
2. A natural gas transportation pipeline according to claim 1, characterized in that the sealing assembly (8) comprises an elastic rod (802) and a sealing cover (803); and a through hole (801) communicated with the second cavity (502) is formed in the annular groove wall of the spacing part (401), the end part, close to the second cavity (502), of the through hole (801) is installed on a sealing cover (803), and meanwhile, an elastic rod (802) connected with the sealing cover (803) is installed in the through hole (801).
3. A natural gas transportation pipeline according to claim 2, wherein the inner aperture (4031) of the moving part (403), two skeletons (4032) are symmetrically installed in the aperture (4031), and a sealed cavity (4034) is formed between the two skeletons (4032); and rollers (4033) are rotatably mounted in the framework (4032).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110169938.6A CN112833270B (en) | 2021-02-05 | 2021-02-05 | Natural gas conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110169938.6A CN112833270B (en) | 2021-02-05 | 2021-02-05 | Natural gas conveying pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112833270A CN112833270A (en) | 2021-05-25 |
| CN112833270B true CN112833270B (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110169938.6A Active CN112833270B (en) | 2021-02-05 | 2021-02-05 | Natural gas conveying pipeline |
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| CN (1) | CN112833270B (en) |
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| DE69709341D1 (en) * | 1997-08-04 | 2002-01-31 | Soremartec Sa | Tempered, deformable coupling |
| CN105864576A (en) * | 2016-06-22 | 2016-08-17 | 陈广生 | Convenient-to-mount and dismount pipeline safety protecting cover structure and mounting method thereof |
| CN111022804A (en) * | 2019-12-26 | 2020-04-17 | 中国科学院长春光学精密机械与物理研究所 | Low vacuum protection and monitoring device for cooling circulation system in X-ray vacuum equipment |
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| CN110173600B (en) * | 2019-06-10 | 2021-02-09 | 宁乡新奥燃气有限公司 | Prevent leaking PE gas pipeline |
| CN111520555A (en) * | 2020-06-05 | 2020-08-11 | 合肥神马科技集团有限公司 | Water-cooling rotary air inlet device |
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|---|---|---|---|---|
| DE69709341D1 (en) * | 1997-08-04 | 2002-01-31 | Soremartec Sa | Tempered, deformable coupling |
| JPH1194188A (en) * | 1997-09-19 | 1999-04-09 | Benkan Corp | Vacuum insulating body, vacuum insulating pipe and vacuum insulating and heat transporting piping |
| CN105864576A (en) * | 2016-06-22 | 2016-08-17 | 陈广生 | Convenient-to-mount and dismount pipeline safety protecting cover structure and mounting method thereof |
| CN111022804A (en) * | 2019-12-26 | 2020-04-17 | 中国科学院长春光学精密机械与物理研究所 | Low vacuum protection and monitoring device for cooling circulation system in X-ray vacuum equipment |
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|---|---|
| CN112833270A (en) | 2021-05-25 |
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Effective date of registration: 20221122 Address after: 065000 No. 111, beiwaihuan Road, Sanhe City, Langfang City, Hebei Province Applicant after: Hebei Hongke qingneng environmental protection equipment Co.,Ltd. Address before: 314051 2nd floor, building 8, No. 111, Qixing Road, Qixing street, Nanhu District, Jiaxing City, Zhejiang Province Applicant before: Huang Zhizhong |
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Denomination of invention: A natural gas transmission pipeline Effective date of registration: 20230922 Granted publication date: 20221213 Pledgee: Hebei Bank Co.,Ltd. Langfang Yanjiao Branch Pledgor: Hebei Hongke qingneng environmental protection equipment Co.,Ltd. Registration number: Y2023110000412 |
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