CN107084281B - Fixing device for laying seabed flexible pipe - Google Patents
Fixing device for laying seabed flexible pipe Download PDFInfo
- Publication number
- CN107084281B CN107084281B CN201710480153.4A CN201710480153A CN107084281B CN 107084281 B CN107084281 B CN 107084281B CN 201710480153 A CN201710480153 A CN 201710480153A CN 107084281 B CN107084281 B CN 107084281B
- Authority
- CN
- China
- Prior art keywords
- fixing device
- exhaust
- ground fixing
- block
- pipe
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- 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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
- F16L3/1091—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing with two members, the two members being fixed to each other with fastening members on each side
-
- 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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/20—Accessories therefor, e.g. floats, weights
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a fixing device for laying a seabed flexible pipe, which comprises a ground fixing device and a pipeline limiting device, wherein the ground fixing device is inserted into soil, the ground fixing device is kept stable by utilizing the friction force, the adsorption force, the end bearing force, the negative pressure of the device and an internal balance weight of the soil, and a pipeline penetrates through the pipeline limiting device and is annularly fixed; the ground fixing device is of a hollow bottomless cylindrical structure and comprises an upper shell and a side wall; the middle of the upper shell is provided with an inserting groove to be connected with the pipeline limiting device, a counterweight groove and an exhaust through hole are circumferentially arranged around the inserting groove, and a counterweight block and an exhaust device are respectively arranged in the counterweight groove and the exhaust through hole; the bottom end of the side wall of the ground fixing device is provided with a sharp part which is beneficial to the initial insertion of the ground fixing device, and the inner wall of the ground fixing device is provided with inverted teeth to increase the soil friction force when the ground fixing device is pulled out. The device provided by the invention has the advantages of ingenious structural design, high flexibility, wide application range and convenience in installation and disassembly, effectively reduces the cost of installation, transportation and recovery, and improves the pipe laying efficiency.
Description
Technical Field
The invention relates to the technical field of submarine pipeline matching equipment, in particular to a fixing device for paving a submarine flexible pipe.
Background
Flexible pipes for use in the sea bottom are generally formed by bonding a reinforcing layer wound with glass fibers, carbon fibers, aramid fibers, or the like, an outer jacket layer made of high-density polyethylene, polypropylene, or the like, and an inner liner layer, or may be formed by compounding a metal layer and a non-metal layer. Due to the materials, the overall density of the composite reinforced pipeline is often not much different from that of seawater, so that a special method is needed to immerse the pipeline into the seabed and ensure the stability of the pipeline after laying.
After a flexible submarine pipe (hereinafter referred to as a submarine pipe) is sunk to the seabed, the safety and stability of the submarine pipe can be endangered by waves, ocean currents and nearby ships in anchoring. The pipeline is required to be moved upwards to the surface of the seabed when a seabed with more hard rocks is encountered, the pipeline is covered by a stone laying method, the stone throwing method has low cost but is obviously influenced by the depth and the dumping accuracy of the working water, the counterweight pressure distribution is not even, the ballast effect of the part of the pipeline area flushed by wave current and the like for long time of gravel is invalid, in addition, the axial displacement of the pipeline in the laying or part of the counterweight block is limited, the pipeline is extremely unstable under the combined action of the axial force and the circumferential force in the two laying method transition areas or the transition area from the laying pipe to the stand pipe, and the surface abrasion local buckling or other forms of fatigue are easily caused.
In deep sea, the cost is too high due to the inconvenience of trenching and burying, and the artificial influence is small, and the flexible pipe mainly adopts modes of a counterweight pressure pad, a stable pressure block, a counterweight block and the like. For the counterweight pressure pad mode, the counterweight pressure pad mode is generally only used for protecting a local pipeline, the fitting degree of the local pipeline and a seabed is increased, and the large-scale use of the pressure pad is unrealistic; the stabilizing pressing block can be divided into a hinge type stabilizing pressing block and a saddle type stabilizing pressing block according to forms, the seabed needs to be smoothly processed in a counterweight mode, otherwise local stress concentration of the flexible pipe caused by extrusion with a raised surface is easily formed; the balancing weight usually comprises upper and lower two, first-selected symmetry in the design of pipe center, then through bolted connection, can make different shapes such as circular, rectangle, star, in the actual laying, the many gross weight of balancing weight quantity that needs are too big, and the flexible pipe generally needs the support of stinger and tensioning ware when the installation, therefore the counter weight method has a lot of inconveniences in the actual installation. In the deep sea, receive the restriction of detection technique, can't draw out the topography geomorphology of submarine pavement region totally, also can't guarantee the complete level of topography simultaneously on laying the circuit, must have more complicated topography district, and it is too big to reform transform deep sea topography cost, also consequently, laying of balancing weight is an examination, will guarantee keeping flat of balancing weight very difficult, otherwise is an examination to balancing weight locking bolt's long-term shear stress fatigue performance.
In addition, all the above counterweight modes are relatively difficult to maintain, replace and recycle, and have high cost, and in the face of the problems existing in the counterweight laying mode, in the face of deeper applied water areas and more complicated geographical conditions, a new flexible pipe laying device is needed, which can not only overcome the above problems, but also maintain good stability.
Disclosure of Invention
The invention aims to provide a fixing device for laying a seabed flexible pipe, which can meet the laying requirement of most flexible pipes, can ensure the ground gripping stability of the device no matter the seabed is horizontal or has an inclined angle, has good adaptability to the terrain, and is convenient to install and implement.
The invention is realized by adopting the following technical scheme: a fixing device for laying a seabed flexible pipe comprises a ground fixing device and a pipeline limiting device connected with the ground fixing device, wherein the ground fixing device is inserted into soil and is kept stable by utilizing soil friction, the pressure difference between the inside and the outside of seawater and internal balance weight, and a pipeline penetrates through the pipeline limiting device and is annularly fixed; the ground fixing device is of a hollow bottomless cylindrical structure and comprises an upper shell and a side wall, and the upper shell is thicker; the middle of the upper shell is provided with an inserting groove to be connected with the pipeline limiting device, a counterweight groove and an exhaust through hole are circumferentially arranged around the inserting groove, and a counterweight and an exhaust device are respectively arranged in the counterweight groove and the exhaust through hole; the shape of the balancing weight is consistent with the outline of the bottom of the balancing weight groove, the height of the balancing weight is smaller than that of the balancing weight groove, and the actual weight and the shape of the balancing weight can be determined according to actual needs; the bottom end of the side wall of the ground fixing device is a sharp part which is beneficial to the initial insertion of the ground fixing device, and the inner side wall of the ground fixing device is provided with inverted teeth so as to increase the soil friction force when the ground fixing device is pulled out.
Further, the pipeline stop device includes the pipe box that plays the guard action to the pipeline and with the plug that the slot matches, and the cover is equipped with and goes on fixed last ferrule and the lower ferrule of pipe box outside the pipe box, goes up ferrule and lower ferrule and passes through bolt fixed connection, just the plug is connected with the lower ferrule, and the pipeline passes through the pipe box to cramp the pipe box through upper and lower ferrule, the plug inserts in the slot to it is fixed through a lock ring, with pipeline stop device and solid ground device connection.
Furthermore, the slot is of an inverted cone structure, correspondingly, an inverted cone is arranged inside the ground fixing device, and similarly, the plug is of an inverted cone structure so as to be matched with the slot.
Furthermore, the exhaust device comprises an outer barrel, an air vent plate is arranged at the top of the outer barrel, a plurality of air ports are formed in the air vent plate, an upper sealed cabin and a lower sealed cabin are arranged in the outer barrel, inverted cone-shaped valve ports are formed in the bottoms of the upper sealed cabin and the lower sealed cabin, an upper sealed block and a lower sealed block which can locally move up and down to realize sealing or circulation are respectively arranged in the upper sealed cabin and the lower sealed cabin, and a stop column which extends into the upper sealed cabin and is used for preventing the upper sealed block from excessively moving upwards is arranged below the air vent plate.
Furthermore, urceolus upper portion is cylindrical, the lower part is the structure of obconic, and it is corresponding, be provided with the inverted cone mouth that matches with urceolus lower part obconic structure in the bottom of exhaust through-hole.
Furthermore, exhaust apparatus and exhaust through-hole threaded connection are provided with the external screw thread on exhaust apparatus's lateral wall promptly, are provided with the internal thread on exhaust through-hole's inside wall, through with exhaust apparatus screw in exhaust through-hole and make exhaust apparatus's lower part obconic structure card in exhaust through-hole bottom obconic mouth department, form simultaneously sealedly.
Furthermore, the pipe sleeve is composed of two semi-cylindrical shells which are clamped with each other, the inner diameter of the pipe sleeve is slightly larger than the outer diameter of the pipeline so as to allow certain radial displacement and pipeline ovality, a protruding ring matched with the upper pipe hoop and the lower pipe hoop is arranged on the outer wall of the middle of the pipe sleeve, and two end parts of the pipe sleeve are machined into arc-shaped sharp shapes.
Furthermore, the upper pipe hoop and the lower pipe hoop respectively comprise two semicircular hoops and two connecting blocks, the connecting blocks are welded at two end parts of the semicircular hoops, and a gap between the two semicircular hoops is embedded with the protruding ring, so that the upper pipe hoop and the lower pipe hoop are prevented from displacing, and the fixing is firmer.
Further, the plug includes with lower ferrule welded last piece and the piece under the obconic, it is cylindrical to go up the piece, and the diameter of piece is greater than the diameter of last piece down, the piece under the obconic with the slot is closely laminated.
Furthermore, the locking ring comprises an upper disc and a lower clamping shaft, the outer surface of the lower clamping shaft is provided with threads, and the lower clamping shaft is tightly attached to the lower plug block.
Compared with the prior art, the invention has the advantages and positive effects that:
firstly, the biggest advantage of the fixing device provided by the scheme is represented by the flexibility: (1) the whole structure has small volume and weight; the generation principle of the fixed supporting force is different from the traditional counterweight mode; the whole device is assembled, and all parts can be disassembled and replaced; (2) the method can adapt to different terrain environments, soil types and earth surface inclination angles; the method meets the laying requirements of most flexible pipes and can be combined with other laying methods for use; (3) the functions are diversified, on one hand, the pipeline can be fixed at a certain horizontal height to reduce the vibration of the pipeline, and on the other hand, the pipeline fixing device can be used for fixing various seabed equipment except the pipeline; the installation and the disassembly are convenient, and the maintenance and the replacement are convenient;
secondly, the fixing device is stable and the counterweight mechanism effectively reduces the transportation weight of the counter weight block of the pipe laying ship, and the pipe laying ship is convenient and quick to put in water compared with the traditional counter weight block mode or the trenching mode, so that the installation, transportation and recovery costs are effectively reduced, the pipe laying efficiency is improved, and the stabilizing effect is guaranteed to be not inferior to that of the traditional mode;
thirdly, the fixing device has great value for laying or fixing in deep water: in deep water, the cost of both ditching and counterweight is greatly increased; for deeper water areas, on the seabed which is inconvenient for delicate exploration and smooth treatment, the device has excellent adaptability, and can ensure that the pipeline can effectively avoid the complex seabed ground surface; the deeper the sea bottom, the greater the seawater pressure, and the more the device is ensured to be stable by utilizing the seawater pressure difference, and the greater the water pressure, the better the installation and stabilizing effects are.
Drawings
FIG. 1 is a schematic view of an overall structure of a fixing device according to an embodiment of the present invention;
FIG. 2 is an exploded view of the fastening device of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the fixture of FIG. 1;
FIG. 4 is a schematic structural view of a pipeline limiting device according to an embodiment of the present invention;
FIG. 5 is a schematic view of a ground fixing apparatus according to an embodiment of the present invention;
FIG. 6 is a perspective view of an exhaust apparatus according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of an exhaust apparatus according to an embodiment of the present invention in a sealed state;
fig. 8 is a schematic cross-sectional view of the exhaust apparatus according to the embodiment of the present invention in an exhaust state.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples.
A fixing device for laying a seabed flexible pipe is shown in figures 1 and 2 and comprises a ground fixing device 3 and a pipeline limiting device 2 connected with the ground fixing device 3, wherein the ground fixing device 3 is inserted into soil and is kept stable by utilizing soil friction, the pressure difference between the inside and the outside of seawater and internal balance weight, and a pipeline 1 penetrates through the pipeline limiting device 2 and is annularly fixed; referring to fig. 3 and 5, the ground fixing device 3 is a hollow cylindrical structure without bottom, and includes an upper shell 31 and a sidewall 32, where the upper shell 31 is thicker; a slot 33 is arranged in the middle of the upper shell 31 to be connected with the pipeline limiting device 2, a counterweight groove 34 and an exhaust through hole 35 are annularly arranged around the slot 33, and a counterweight block 4 and an exhaust device 5 are respectively arranged in the counterweight groove 34 and the exhaust through hole 35; the shape of balancing weight 4 keeps unanimous with balancing weight tank bottom profile, can be fan-shaped or other shapes, and its height is less than the 34 degree of depth of balancing weight groove, and the actual weight and the shape of balancing weight 4 can be confirmed according to actual need, put into behind the balancing weight 4 of different weight, size, density and welding seal. As can be seen from fig. 3 and 5, the bottom end of the side wall 32 of the ground fixing device 3 is a tip portion 321, the thickness of the side wall 32 gradually increases from bottom to top, which facilitates the initial insertion of the ground fixing device 3, and the inner side wall of the ground fixing device 3 is provided with inverted teeth 36 to increase the soil friction force when the ground fixing device is pulled out.
Referring to fig. 4, the pipe stopper 2 includes a pipe sleeve 21 for protecting the pipe and a plug 22 having a contour and an angle matching with those of the slot 33, an upper pipe clamp 23 and a lower pipe clamp 24 for fixing the pipe sleeve are sleeved outside the pipe sleeve 21, the upper pipe clamp 23 and the lower pipe clamp 24 are fixedly connected by a bolt 25, and the plug 22 is connected with the lower pipe clamp 24, the pipe 1 is clamped to the pipe sleeve 21 by the upper pipe clamp and the lower pipe clamp, the plug 22 is inserted into the slot 33 and fixed by a locking ring 6, so as to connect the pipe stopper 2 with the ground fixing device 3. The slot 33 is of an inverted cone structure, correspondingly, an inverted cone 37 is arranged in the ground fixing device 3, meanwhile, the soil is gradually compacted and hardened due to the existence of the inverted cone 37, water and air in the soil are discharged, the soil is fully contacted with the inverted teeth, and the holding power of the ground fixing device is increased.
In this embodiment, referring to fig. 6-8, the exhaust device 5 is an axisymmetric structure, and includes an outer cylinder, a vent plate is disposed on the top of the outer cylinder, and a plurality of air ports 51 are disposed on the vent plate; fig. 7 and 8 are structural diagrams of a sealing state and a section of an exhaust state of the unidirectional self-closing exhaust device, respectively, specifically, an upper sealed cabin 52 and a lower sealed cabin 53 are arranged in an outer cylinder, the bottoms of the upper sealed cabin 52 and the lower sealed cabin 53 are provided with an inverted cone-shaped valve port 7, an upper sealed block 521 and a lower sealed block 531 which can move up and down to realize sealing or circulation are respectively arranged in the upper sealed cabin 52 and the lower sealed cabin 53, the cone angle of the two sealed blocks is consistent with the cone angle of the sealed cabin wall, complete sealing can be formed by bonding after being pressed, and a stopping column 54 which extends into the upper sealed cabin to prevent the upper sealed block 521 from excessively moving upwards is arranged below the vent plate.
When the suction pipe sucks water from the air port 51 of the exhaust device 5, the sealing block in the exhaust device 5 moves upwards due to the pressure change, in fig. 6, the upper part of the outer cylinder is cylindrical 55, the lower part of the outer cylinder is an inverted conical structure 56, and correspondingly, an inverted conical opening 351 matched with the inverted conical structure of the lower part of the outer cylinder is arranged at the bottom of the exhaust through hole 35 to provide corresponding sealing pressure. The exhaust device 5 is in threaded connection with the exhaust through hole 35. Namely, an external thread is arranged on the outer side wall of the exhaust device 5, an internal thread is arranged on the inner side wall of the exhaust through hole 35, and the exhaust device 5 is screwed into the exhaust through hole, so that the lower inverted cone structure of the exhaust device is clamped at the inverted cone opening at the bottom of the exhaust through hole, and meanwhile, sealing is formed.
During air exhaust, in fig. 8, the upper sealing block 521 is firstly sucked up, the lower sealing block 531 is sucked up next, due to the special structural shape, the sealing blocks cannot be reversely sealed, a complete and smooth path is formed in the whole air exhaust device, the inside and air water flow into the suction pipe along the path and are pumped into the water absorber, when the pressure difference between the inside and the outside of the soil fixing device cylinder is the same, the soil fixing device starts to descend and is gradually inserted into the soil, after the soil fixing device is arranged in the soil, the suction pipe is pulled out, and the upper sealing block and the lower sealing block return to the original position under the action of the pressure difference between the inside and the outside and the self gravity, so that the double-pressure sealing original position is formed.
In addition, as can be understood from fig. 2, the pipe sleeve 21 is composed of two semi-cylindrical shells 26 which are clamped with each other, the inner diameter of the pipe sleeve 21 is slightly larger than the outer diameter of the pipeline 1 so as to allow a certain radial displacement and ovality of the pipeline, a raised ring 27 which is matched with the upper pipe hoop 23 and the lower pipe hoop 24 is arranged on the outer wall of the middle part of the pipe sleeve 1, and the cross section of the raised ring 27 is isosceles trapezoid. The pipe sleeve edge is designed to buffer transition and reduce contact stress concentration with a pipeline, the upper pipe hoop 23 and the lower pipe hoop 24 respectively comprise two semicircular hoops 28 and two connecting blocks 29, the connecting blocks 29 are welded at two ends of the semicircular hoops 28, a gap 281 between the two semicircular hoops 28 is embedded with the protruding ring 27, and after the upper pipe hoop and the lower pipe hoop are connected through bolts, the two semicircular cylindrical shells are clamped to form an interference fit so as to be fixed, so that the upper pipe hoop 23 and the lower pipe hoop 24 are prevented from displacement, and the fixation is firmer.
The plug 22 comprises an upper block 221 welded with a lower pipe hoop and an inverted conical lower block 222, the upper block 221 is cylindrical, the diameter of the lower block 222 is larger than that of the upper block, and the inverted conical lower block 222 is tightly attached to the insertion groove 33. The locking ring 6 comprises an upper disc 61 and a lower clamping shaft 62, and the outer surface of the lower clamping shaft 62 is provided with threads.
When the whole fixing device lands on the ground, because the device and the weight of the balancing weight have certain initial involved amount on the soil, the inside of the ground fixing device is sealed. Absorbing water and gas in the ground fixing device through an exhaust device to form a pressure difference with external seawater, and pressing the side wall of the ground fixing device into soil under the action of pressure; under the action of the inverted cone inside the soil fixing device, the pressed soil is compacted more and is tightly combined with the side wall and the inverted teeth. After the pressing-in is finished, the inside of the fixing device is sealed, and the whole fixing device is kept stable under the combined action of soil friction force, seawater pressure difference and balance weight; when in air exhaust, under the action of the air exhaust device, the upper sealing block and the lower sealing block are sequentially sucked up under the suction of the air inlet, and a passage from top to bottom is formed due to the special internal structural design, and the internal seawater and air are exhausted along the passage; when the air port is exposed to seawater, the two sealing blocks are pressed down to the conical surfaces of the two sealing blocks to be tightly attached to the conical surface of the inverted conical valve port under the pressure of the seawater, the passage is closed at the moment, and double sealing is formed inside the exhaust device.
The fixing device provided by the embodiment can form a stable and lasting seabed fixing effect on a flexible paved pipeline, the stability of the whole device is ensured by utilizing the soil resistance of the ground fixing device at the ground structure, the negative pressure of the device and the balance weight in the upper shell, the gripping force and the stability of the ground fixing device are further improved through the arrangement of local structures such as inverted teeth and inverted cones, and a good and lasting fixing effect is formed; a limiting device for fixing other seabed equipment can be arranged above the ground fixing device according to the requirement, and the limiting device is not described in detail and has general applicability and flexibility for fixing the seabed structure; moreover, the device has high adaptability and flexibility, has strong adaptability to complex terrains and different soils, and can be inserted and fastened in soils with different soil textures.
In addition, the insertion depth of the ground fixing device, the insertion angle with the ground and the like can be properly adjusted to adapt to different seabed conditions; meanwhile, the exhaust device and the limiting device are convenient to assemble and disassemble, convenient to maintain and replace, and safer and more flexible than a traditional exhaust port due to the self-tightening and double-sealing effects of the design of the exhaust device, and have better sealing effects and longer service life; the whole fixing device is small in size, simple to install and free of the need of diving operation of workers, laying cost of the seabed flexible pipeline is saved, the fixing device has more economic benefits and safety compared with a traditional seabed composite pipeline fixing mode, the fixing device can be matched with other counterweight modes to be used according to needs, such as ditching, ditch burying and the like, and the application range is wider.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (7)
1. A fixing device for laying a seabed flexible pipe is characterized by comprising a ground fixing device and a pipeline limiting device connected with the ground fixing device;
the ground fixing device is of a hollow bottomless cylindrical structure and comprises an upper shell and a side wall; the middle of the upper shell is provided with an inserting groove used for being connected with a pipeline limiting device, a counterweight groove and an exhaust through hole are annularly arranged around the inserting groove, and a counterweight block and an exhaust device are respectively arranged in the counterweight groove and the exhaust through hole; the bottom end of the side wall of the ground fixing device is provided with a sharp part, and the inner side wall of the ground fixing device is provided with inverted teeth;
the pipeline limiting device comprises a pipe sleeve and a plug matched with the slot; an upper pipe hoop and a lower pipe hoop for fixing the pipe sleeve are sleeved outside the pipe sleeve and fixedly connected through bolts; the plug is connected with the lower pipe hoop, the plug is inserted into a slot and fixed through a locking ring, the slot is of an inverted cone structure, and correspondingly, an inverted cone is arranged inside the ground fixing device;
the exhaust device comprises an outer barrel, the top of the outer barrel is provided with a vent plate, and the vent plate is provided with a plurality of air ports; an upper sealed cabin and a lower sealed cabin are arranged in the outer barrel, inverted cone-shaped valve ports are formed in the bottoms of the upper sealed cabin and the lower sealed cabin, an upper sealed block and a lower sealed block which can move up and down to realize sealing or circulation are respectively arranged in the upper sealed cabin and the lower sealed cabin, and a stopping column which stretches into the upper sealed cabin and is used for stopping the upper sealed block is arranged below the vent plate.
2. The fixture according to claim 1, wherein: the upper part of the outer barrel is of a cylindrical structure, the lower part of the outer barrel is of an inverted cone structure, and correspondingly, an inverted cone opening matched with the inverted cone structure at the lower part of the outer barrel of the exhaust device is arranged at the bottom of the exhaust through hole.
3. The fixture according to claim 2, wherein: the exhaust device is in threaded connection with the exhaust through hole.
4. The fixture according to claim 1, wherein: the pipe sleeve is composed of two semi-cylindrical shells which are clamped with each other, the inner diameter of the pipe sleeve is larger than the outer diameter of the pipeline, and a protruding ring matched with the upper pipe hoop and the lower pipe hoop is arranged on the outer wall of the middle of the pipe sleeve.
5. The fixture according to claim 4, wherein: the upper pipe hoop and the lower pipe hoop respectively comprise two semicircular hoops and two connecting blocks, the connecting blocks are welded at two end parts of the semicircular hoops, and a gap between the two semicircular hoops is embedded with the protruding ring.
6. The fixture according to claim 1, wherein: the plug comprises an upper block and an inverted conical lower block, wherein the upper block is welded with the lower pipe hoop, the upper block is cylindrical, and the diameter of the lower block is larger than that of the upper block.
7. The fixture according to claim 6, wherein: the locking ring comprises an upper disc and a lower clamping shaft, threads are arranged on the outer surface of the lower clamping shaft, and the lower clamping shaft is tightly attached to the lower plug block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710480153.4A CN107084281B (en) | 2017-06-22 | 2017-06-22 | Fixing device for laying seabed flexible pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710480153.4A CN107084281B (en) | 2017-06-22 | 2017-06-22 | Fixing device for laying seabed flexible pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107084281A CN107084281A (en) | 2017-08-22 |
| CN107084281B true CN107084281B (en) | 2022-12-23 |
Family
ID=59606402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710480153.4A Active CN107084281B (en) | 2017-06-22 | 2017-06-22 | Fixing device for laying seabed flexible pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107084281B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654734A (en) * | 2017-11-22 | 2018-02-02 | 江苏德创制管有限公司 | A kind of anchor ear support component for pipe fitting connection |
| CN109357083B (en) * | 2018-11-21 | 2024-07-23 | 武汉理工大学 | Indoor heating and ventilation pipeline fixing device |
| CN118128973B (en) * | 2024-05-07 | 2024-07-02 | 山西旺中塑料管有限公司 | PE plastic pipe body clamping device and clamping crane thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB899283A (en) * | 1957-10-30 | 1962-06-20 | Seetru Ltd | Improvements in fluid control valves |
| JP3275812B2 (en) * | 1997-12-12 | 2002-04-22 | 日本電気株式会社 | ID-authenticated key distribution method and apparatus, and machine-readable recording medium recording program |
| CN1579879A (en) * | 2003-07-31 | 2005-02-16 | 中国石化集团胜利石油管理局钻井工艺研究院 | Shallow sea submarine pipeline (cable) detecting and maintaining device |
| US20050098137A1 (en) * | 2003-11-11 | 2005-05-12 | Hisato Tanaka | Intake/exhaust valve and its seal for internal combustion engine |
| CN101963257A (en) * | 2010-09-30 | 2011-02-02 | 天津大学 | Method for fixing seabed pipeline and preventing buckle propagation |
| CN102022585A (en) * | 2010-11-17 | 2011-04-20 | 中国海洋石油总公司 | Submarine pipeline buckling preventing device, and manufacturing method and mounting method thereof |
| CN201916598U (en) * | 2010-11-17 | 2011-08-03 | 中国海洋石油总公司 | Submarine pipeline bend-preventing device |
| CN105133661A (en) * | 2015-08-11 | 2015-12-09 | 深圳市腾海油田工程技术有限公司 | Inflatable packer based on undersea pile leg |
| WO2016020275A1 (en) * | 2014-08-04 | 2016-02-11 | Werner Hunziker | Device and method for irradiating a suspension on workpieces |
| CN105926627A (en) * | 2016-05-11 | 2016-09-07 | 中国海洋大学 | Suction anchor capable of downwards penetrating to position below sea bottom surface and mounting method thereof |
| CN206234474U (en) * | 2016-11-24 | 2017-06-09 | 河南省电力勘测设计院 | A kind of seabed HDPE pipeline saddle weights |
| CN207333958U (en) * | 2017-06-22 | 2018-05-08 | 中国海洋大学 | A kind of seabed flexible pipe laying fixing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2718241B2 (en) * | 1990-03-23 | 1998-02-25 | 鹿島建設株式会社 | Foundation construction method on soft submarine ground |
-
2017
- 2017-06-22 CN CN201710480153.4A patent/CN107084281B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB899283A (en) * | 1957-10-30 | 1962-06-20 | Seetru Ltd | Improvements in fluid control valves |
| JP3275812B2 (en) * | 1997-12-12 | 2002-04-22 | 日本電気株式会社 | ID-authenticated key distribution method and apparatus, and machine-readable recording medium recording program |
| CN1579879A (en) * | 2003-07-31 | 2005-02-16 | 中国石化集团胜利石油管理局钻井工艺研究院 | Shallow sea submarine pipeline (cable) detecting and maintaining device |
| US20050098137A1 (en) * | 2003-11-11 | 2005-05-12 | Hisato Tanaka | Intake/exhaust valve and its seal for internal combustion engine |
| CN101963257A (en) * | 2010-09-30 | 2011-02-02 | 天津大学 | Method for fixing seabed pipeline and preventing buckle propagation |
| CN102022585A (en) * | 2010-11-17 | 2011-04-20 | 中国海洋石油总公司 | Submarine pipeline buckling preventing device, and manufacturing method and mounting method thereof |
| CN201916598U (en) * | 2010-11-17 | 2011-08-03 | 中国海洋石油总公司 | Submarine pipeline bend-preventing device |
| WO2016020275A1 (en) * | 2014-08-04 | 2016-02-11 | Werner Hunziker | Device and method for irradiating a suspension on workpieces |
| CN105133661A (en) * | 2015-08-11 | 2015-12-09 | 深圳市腾海油田工程技术有限公司 | Inflatable packer based on undersea pile leg |
| CN105926627A (en) * | 2016-05-11 | 2016-09-07 | 中国海洋大学 | Suction anchor capable of downwards penetrating to position below sea bottom surface and mounting method thereof |
| CN206234474U (en) * | 2016-11-24 | 2017-06-09 | 河南省电力勘测设计院 | A kind of seabed HDPE pipeline saddle weights |
| CN207333958U (en) * | 2017-06-22 | 2018-05-08 | 中国海洋大学 | A kind of seabed flexible pipe laying fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107084281A (en) | 2017-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107084281B (en) | Fixing device for laying seabed flexible pipe | |
| CN104843146A (en) | Bionic suction anchor | |
| CN109736343A (en) | Offshore wind power foundation, its installation method and wind power generating set | |
| CN103628509B (en) | Inner and outer pipes for bearing capacity of pile foundation test adopts double-tube structure and the construction method of unlike material | |
| CN110185409A (en) | A kind of separate type underwater well head suction anchor of highly-efficient processing transport | |
| CN107559502B (en) | Underwater attached self-stabilizing oil and gas conveying pipeline | |
| CN210797617U (en) | Pile barrel composite truss type offshore wind turbine foundation | |
| CN208266910U (en) | Negative pressure bucket | |
| CN207333958U (en) | A kind of seabed flexible pipe laying fixing device | |
| CN209799872U (en) | Device for quickly forming vertical well on seabed shallow layer by utilizing continuous casing of suction anchor | |
| CN108679304A (en) | A kind of tortoise shape flexibility submerged pipeline clump weight | |
| CN210066693U (en) | Offshore geological exploration platform structure with assembled barrel-shaped foundation | |
| KR102247425B1 (en) | Suction pile capable of supplying fluid and Vertical alignment method of the Suction pile | |
| CN211423550U (en) | Reinforced concrete pipe | |
| CN205062834U (en) | Marine ground | |
| CN203836378U (en) | Stable type pipeline | |
| CN201866407U (en) | Seabed PE pipe cast iron counterweight block | |
| CN207073150U (en) | A kind of buffer-type plastic inspection well | |
| RU2664323C1 (en) | Device for underwater pipeline ballasting | |
| CN205877572U (en) | Cast iron balancing weight | |
| CN217927574U (en) | Submarine pipeline installed under shallow sea coast | |
| CN204475480U (en) | A kind of novel plastic manhole | |
| CN211500667U (en) | A modularization fixing device for foundation is pour | |
| CN208348720U (en) | Pipeline leakage plugging device and tap water water intaking gravity line for tap water water intaking gravity line | |
| CN211287632U (en) | Bidirectional pressure-bearing wellhead stabilizing base |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |