CN110206962A - A kind of sealing device for submarine pipeline maintenance pipe clamp - Google Patents
A kind of sealing device for submarine pipeline maintenance pipe clamp Download PDFInfo
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- CN110206962A CN110206962A CN201910472370.8A CN201910472370A CN110206962A CN 110206962 A CN110206962 A CN 110206962A CN 201910472370 A CN201910472370 A CN 201910472370A CN 110206962 A CN110206962 A CN 110206962A
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- 238000007789 sealing Methods 0.000 title claims abstract description 209
- 238000012423 maintenance Methods 0.000 title claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000004323 axial length Effects 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- 230000004913 activation Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 230000008439 repair process Effects 0.000 description 5
- 239000007769 metal material Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/18—Appliances for use in repairing pipes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The present invention relates to a kind of sealing devices for submarine pipeline maintenance pipe clamp, including shell, locking mechanism, sealing structure；The shell includes first shell and second shell；The sealing structure includes along the axial direction setting first axis sealing strip in the housing of shell and the second axial sealing stripe, is separately positioned on first radial direction seal ring at first axis sealing strip both ends along the radial direction of shell and is separately positioned on second radial direction seal ring at the second axial sealing stripe both ends along the radial direction of shell；The axial length of the first axis sealing strip is greater than the axial length of the second axial sealing stripe, and first radial direction seal ring, the second radial direction seal ring include the first half portion being arranged in first shell and the second half portion being arranged in second shell；The locking mechanism is separately positioned on the both ends of shell, to push the first radial direction seal ring, the second radial direction seal ring to push against first axis sealing strip, the second axial sealing stripe respectively.
Description
Technical field
The present invention relates to field of offshore oil development, repair pipe clamp for submarine pipeline more specifically to a kind of
Sealing device.
Background technique
Sea-bottom oil-gas pipeline repairs pipe clamp and is applied to extra large pipe plug leakage maintenance, and installation operating process has operation without welding
The advantages that easy, reparation is quickly, rehabilitation cost is lower is widely used in the neck of the extra large pipe emergency maintenance to local damage or leakage
Domain.
Extra large pipe emergency maintenance pipe clamp is generally the retractable design of two-piece type, is used by diver or underwater robot (ROV)
Bolt, which is installed, is fixed to pipeline external to be repaired, is formed by sealing system in pipe clamp and pipeline enclosure and is able to bear pre- level pressure
The closed annular space of power, while pipe clamp itself strengthens pipeline configuration intensity, to achieve the purpose that closure, pipe-repairing.
Sealing device is the critical component equipment of extra large pipe maintenance pipe clamp, directly the success or failure of decision submerged pipeline maintenance repairing.
Therefore, the sealing device for developing mating sea-bottom oil-gas pipeline maintenance pipe clamp has important meaning to the safety in production for ensureing oil gas field
Justice.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing a kind of for Submarine Pipeline
Road repairs the sealing device of pipe clamp, and sealed pressure is big, good seal performance, high reliablity.
The technical solution adopted by the present invention to solve the technical problems is: constructing a kind of for submarine pipeline maintenance pipe clamp
Sealing device comprising shell, locking mechanism, sealing structure；
The shell includes the first shell and second shell installed that cooperate；
The sealing structure includes the first axis sealing strip disposed in the housing along the axial direction of the shell
First diameter at the first axis sealing strip both ends is separately positioned on the second axial sealing stripe, along the radial direction of the shell
The second radial close of the second axial sealing stripe both ends is separately positioned on to sealing ring and along the radial direction of the shell
Seal；
The axial length of the first axis sealing strip be greater than second axial sealing stripe axial length, described first
Radial direction seal ring, the second radial direction seal ring include the first half portion being arranged in the first shell and are arranged described second
The second half portion in shell；
The locking mechanism is separately positioned on the both ends of the shell, to push first radial direction seal ring, the second diameter
Push against the first axis sealing strip, the second axial sealing stripe respectively to sealing ring.
In some embodiments, the first shell is equipped with the first binding face being bonded with the second shell, described
Second shell is equipped with the second binding face being bonded with the first shell, is offered respectively on first binding face for putting
Set not connected first groove, the second groove of the first axis sealing strip, the second axial sealing stripe.
In some embodiments, second axial sealing stripe is in vertical bar shape, described in the first axis sealing strip correspondence
The position of second axial sealing stripe, which is radially protruded, is formed with bending part.
In some embodiments, the first axis sealing strip, the second axial sealing stripe cross section be circle, it is described
First groove, second groove are square trench, and the cross-sectional area of the square trench is slightly larger than the first axis sealing strip, the
The cross-sectional area of two axial sealing stripes.
In some embodiments, the first axis sealing strip, the second axial sealing stripe, the first radial direction seal ring, second
Radial direction seal ring is all made of fluorubber material and is made.
In some embodiments, the junction of first half portion and second half portion is equipped with the dentation knot being mutually twisted
Structure.
In some embodiments, the sealing structure further includes sealing test component, and the sealing test component includes setting
The oil inlet pipe setting operation panel on the housing and being connect with the operation panel；
The first axis sealing strip, the second axial sealing stripe, the first radial direction seal ring, shape between the second radial direction seal ring
At there is sealing lumen, the oil outlet of the oil inlet pipe is connected with the sealing lumen.
In some embodiments, the locking mechanism includes the flange being arranged in outside the shell end face and the flange
Connect be projecting axially into the shell slip sleeve, cooperation the slip sleeve inner sidewall slips, be arranged in the slips
Cover the radial fastening assembly of push rod and the fixed flange and the shell far from described flange one end；
The sealing device further includes axially fastening component, institute for fix the first shell and the second shell
It states and axially fastens component and the radial fastening assembly is perpendicular.
In some embodiments, the locking mechanism further include setting the push rod and first radial direction seal ring it
Between radial seal compression ring, the radial seal that is arranged between first radial direction seal ring and second radial direction seal ring
Slip ring and radial seal baffle ring of second radial direction seal ring far from first radial direction seal ring one end is set.
In some embodiments, the locking mechanism includes radial seal stop collar, first radial direction seal ring, second
Radial direction seal ring is fastened on respectively between every two radial seal stop collar；The section of the radial seal stop collar is L-shaped, institute
Stating radial seal stop collar has opening towards the side of the first axis sealing strip, the second axial sealing stripe.
Implement the present invention and at least has the advantages that the sealing dress for submarine pipeline maintenance pipe clamp of the invention
It sets, the both ends of first axis sealing strip are in close contact with the first radial direction seal ring respectively, form the first layer sealing for being located at outer layer
Structure；The both ends of second axial sealing stripe are in close contact with the second radial direction seal ring respectively, and the second layer that formation is located at internal layer is close
Seal structure, double-layer seal have many advantages, such as that good seal performance, high sealing reliability, sealed pressure are big, are particularly suitable for deepwater field
Submarine pipeline repair pipe clamp.After being installed, first axis sealing strip, the second axial sealing stripe, the first radial direction seal ring,
Sealing lumen is formed between second radial direction seal ring, it can be by carrying out pressure test in the sealing lumen, it is ensured that sealing dress
It sets and installs successfully.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the structural schematic diagram of submarine pipeline maintenance pipe clamp in some embodiments of the invention；
Fig. 2 is the structural schematic diagram of sealing structure in some embodiments of the invention；
Fig. 3 is the first half portion and second of the first radial direction seal ring and the second radial direction seal ring in some embodiments of the invention
The fit structure schematic diagram of half portion；
Fig. 4 is that the decomposition texture of first axis sealing strip and the second axial sealing stripe is illustrated in some embodiments of the invention
Figure；
Fig. 5 is the structural schematic diagram of submarine pipeline maintenance pipe clamp first shell in some embodiments of the invention；
Fig. 6 is the structural schematic diagram of submarine pipeline maintenance pipe clamp second shell in some embodiments of the invention；
Fig. 7 is the structural schematic diagram of flange in some embodiments of the invention, slips, slip sleeve, push rod.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
As shown in figs. 1-7, the sealing device for submarine pipeline maintenance pipe clamp in some embodiments of the invention may include
Shell, locking mechanism, sealing structure.Wherein, shell may include the first shell 21 and second shell 22 installed that cooperate, the
One shell 21 and 22 capable assembling of second shell form opening-closing structure, in order to be mounted on outside extra large pipe 1.Sealing structure may include axial direction
Sealing system and radial sealing system two parts.The axial length direction of the coastal pipe 1 of axial seal system is sealed, and can be wrapped
Include the axial direction setting first axis sealing strip 41 and the second axial sealing stripe 42 in the housing along shell, and first axis
The axial length of sealing strip 41 and the second axial sealing stripe 42 differs.The radial direction of the coastal pipe 1 of radial sealing system carries out close
Envelope, may include along shell radial direction be separately positioned on 41 both ends of first axis sealing strip the first radial direction seal ring 31,
And second radial direction seal ring 32 at 42 both ends of the second axial sealing stripe is separately positioned on along the radial direction of shell.First axis
The flexibilities such as rubber can be used in sealing strip 41, the second axial sealing stripe 42, the first radial direction seal ring 31, the second radial direction seal ring 32
Material is made, and flexible deformation can occur under the effect of external force.Locking mechanism is separately positioned on the both ends of shell, to push
One radial direction seal ring 31, the second radial direction seal ring 32 push against first axis sealing strip 41, the second axial sealing stripe 42 respectively, realize
Sealing.
In the embodiment of the present invention, the axial length of first axis sealing strip 41 is greater than the axial direction of the second axial sealing stripe 42
Length.First axis sealing strip 41, the second axial sealing stripe 42, the first radial direction seal ring 31, the second radial direction seal ring 32 are all provided with
There are two setting, i.e., axial seal system and radial sealing system are double-layer seal design.Two first axis sealing strips 41
Both ends are in close contact with two the first radial direction seal rings 31 respectively, form the first layer sealing structure for being located at outer layer；Two second
The both ends of axial sealing stripe 42 are in close contact with two the second radial direction seal rings 32 respectively, form the second layer sealing for being located at internal layer
Structure.Double-layer seal design has many advantages, such as that good seal performance, high sealing reliability, sealed pressure are big.After being installed,
One axial sealing stripe 41, the second axial sealing stripe 42, the first radial direction seal ring 31, be formed between the second radial direction seal ring 32 it is close
Lumen 34 is sealed, it can be by carrying out pressure test in the sealing lumen 34, it is ensured that sealing system is installed successfully.
As shown in Fig. 1,5,6, in the present embodiment, first shell 21, the outer cross section of second shell 22 are rectangular.First
Shell 21, second shell 22 can be used the metal materials such as stainless steel and be made.First shell 21 may also include the first of semicircular in shape
Clamping groove 214 can be recessed by first shell 21 towards the one side wall of second shell 22.Second shell 22, which may also include, is in
Semicircular second clamping groove 224 can be recessed by second shell 22 towards the one side wall of first shell 21.First clamping
Slot 214 and the mutual split of the second clamping groove 224 form circular cavity, in order to be installed on the outside of extra large pipe 1.
The first binding face 213 being bonded with second shell 22 can be also equipped in first shell 21, the first binding face 213 can wrap
Include the plane for being located at 214 two sides of the first clamping groove.Second be bonded with first shell 21 can be also equipped in second shell 22
Binding face 223, the second binding face 223 may include the plane for being located at 224 two sides of the second clamping groove.First binding face 213,
Two binding faces 223 are bonded to each other when first shell 21 and second shell 22 are mutually spliced.
In some embodiments, which, which may also include, axially fastens component 8, for fixing first shell 21 and
Two shells 22, while compressing activation first axis sealing strip 41, the second axial sealing stripe 42.Axially fastening component 8 can be along first
The folding direction setting of shell 21, second shell 22.Axially fasten component 8 may include it is multiple axially fasten bolt, can be along shell
The two rows of body are uniformly distributed, and every row axially fastens bolt, and along the axial direction of shell, successively uniform intervals are arranged.
In some embodiments, which may also include location structure, can repair pipe clamp decentralization in submarine pipeline
When setting seabed, before diver or ROV (underwater robot) operation, first shell 21 and second shell 22 are positioned.It is fixed
Bit architecture may include the locating support 25 for being separately mounted to shell axial ends and the connecting rod for connecting two locating supports 25
26.Shackle 24 can be equipped on locating support 25, offshore lifting and decentralization for submarine pipeline maintenance pipe clamp.Connecting rod 26 is along shell
The axial direction of body is arranged, and both ends are stretched out except shell respectively.First shell 21 and second shell 22 can be around connecting rods 26
Rotation, to close or open first shell 21 and second shell 22.
As shown in figures 2-6, the first radial direction seal ring 31, the second radial direction seal ring 32, which may each comprise, is arranged in first shell 21
In first half portion 311 and the second half portion 312 for being arranged in second shell 22.First half portion 311 is fitted to the first card
The inner sidewall of access slot 214, the second half portion 312 are fitted to the inner sidewall of the second clamping groove 224.First half portion 311, the second half
Portion 312 can substantially be in semi-circular shape structure, after first shell 21, second shell 22 are closed, the first half portion 311 and the second half portion
312 mutual splits form a complete annular seal circle, which is fitted tightly over the outside of extra large pipe 1, with
Seal extra large pipe 1.Further, the junction of the first half portion 311 and the second half portion 312 can be equipped with the dentalation being mutually twisted,
Contact area when increasing the first half portion 311, the engagement of the second half portion 312, is pressing the first half portion 311 and the second half portion 312
Mutually close occlusion, improves the reliability of radial seal under the action of power.
In the present embodiment, the first the half of the first half portion 311 of the first radial direction seal ring 31 and the second radial direction seal ring 32
311 structure of portion is identical, and the both ends of respective first half portion 311 are respectively equipped with a toothed projections.First radial direction seal ring 31
The second half portion 312 it is identical as 312 structure of the second half portion of the second radial direction seal ring 32, the two of respective second half portion 312
End is respectively equipped with a tooth form groove.The tooth form groove of second half portion 312 and the toothed projections of the first half portion 311 are mutually twisted.
In other embodiments, the first half portion 311, the second half portion 312 both ends can also respectively correspond be provided with multiple toothed projections and
Multiple tooth form grooves.
In further embodiments, the first half portion 311 of the first radial direction seal ring 31 can also be with the second radial direction seal ring
32 311 structure of the first half portion is different, and the second half portion 312 of the first radial direction seal ring 31 can also be with the second radial direction seal ring 32
The second half portion 312 structure it is different.
In the present embodiment, two first axis sealing strips 41 and two the second axial sealing stripes 42 may be provided at
In first shell 21.It is offered in first shell 21 and is respectively used to installation first axis sealing strip 41, the second axial sealing stripe 42
First groove 211, second groove 212, and first groove 211, second groove 212 are not connected.Specifically, first groove
211, second groove 212 can be provided on the first binding face 213, and the distance between second groove 212 and shell central axes
Less than the distance between first groove 211 and shell central axes.Second axial sealing stripe 42 can be in vertical bar shape；First axis sealing
The position of corresponding second axial sealing stripe 42 of item 41, which is radially protruded, is formed with bending part 411, axial close to provide second
The installation space of strip of paper used for sealing 42.
Second binding face 223 corresponds to first axis sealing strip 41, the position of the second axial sealing stripe 42 is smooth plane.
When first shell 21, second shell 22 are closed and fit closely under the action of axially fastening component 8, first axis sealing strip
41, under the extruding of the second binding face 223 flexible deformation can occur for the second axial sealing stripe 42, to be squeezed by the second patch
In the enclosure space that conjunction face 223 and first groove 211, second groove 212 are formed.
First groove 211, second groove 212 cross-sectional area can be slightly larger than first axis sealing strip 41, the second axis respectively
To the cross-sectional area of sealing strip 42, avoid causing the edge of axial sealing stripe to be overflowed due to interference fit.
Further, first axis sealing strip 41, the second axial sealing stripe 42 cross section can for circle, first groove
211, second groove 212 can be square trench.Circular axial sealing stripe can fit closely in square trench after compression
Wall, it is easier to sealed pressure is generated in square trench, sealing hardness is high." add certainly in addition, circular axial sealing stripe has
By force " the characteristics of, under the action of outer plus-pressure, axial sealing stripe and the contact pressure on shell, 1 surface Hai Guan can increase therewith,
To reach the requirement of sealing.It is to be appreciated that in other embodiments, first axis sealing strip 41, the second axial sealing stripe
42, first groove 211, second groove 212 cross section may be other shapes.
First groove 211, the axial ends of second groove 212 are provided with and the first clamping groove 214 and the second clamping groove
224 openings being connected, in order to which first axis sealing strip 41, the second axial sealing stripe 42 are radial with first respectively in the position
Sealing ring 31, the contact of the second radial direction seal ring 32, realize sealing.
In further embodiments, first axis sealing strip 41, the second axial sealing stripe 42 can also be all disposed within second shell
In body 22 or first axis sealing strip 41, the second axial sealing stripe 42 are separately positioned on first shell 21, second shell 22
In.
In general, the material requirements of sealing structure has good physical mechanical property (elastic strength, hardness, wearability, resistance to
Compressibility, resistance to tearing etc.), lower temperature resistance, heat resistance, air impermeability and chemical stability (oil resistant, acidproof, water-fast etc.).This
In invention, first axis sealing strip 41, the second axial sealing stripe 42, the first radial direction seal ring 31, the second radial direction seal ring 32 are
It is made of the fluorubber material of higher hardness.
As illustrated in figs. 5-7, locking mechanism may include flange 61, slip sleeve 62, slips 63, push rod 64, radial fastening assembly
69, radial seal compression ring 65, radial seal slip ring 66, radial seal stop collar 67 and radial seal baffle ring 68.Flange
61, slip sleeve 62, slips 63, radial seal compression ring 65, radial seal slip ring 66, radial seal stop collar 67 and radial direction
Seal stopper ring 68 may each comprise the first semicircle ring portion being mounted in first shell 21 and be mounted in second shell 22 second
Semicircle ring portion, after first shell 21 and second shell 22 are closed, each complete circular ring structure of self-forming, to be installed on extra large pipe 1
Outside.Flange 61, slip sleeve 62, slips 63, push rod 64, radial seal compression ring 65, radial seal slip ring 66 and radial direction
Seal stopper ring 68, radial fastening assembly 69 can be used stainless steel and other metal materials and be made.
Flange 61 is separately positioned on outside the end face at shell both ends, passes through radial fastening assembly between flange 61 and shell end face
69 are fixedly connected.Radial fastening assembly 69 can be arranged along the axial direction of shell, can be mutually perpendicular to set with component 8 is axially fastened
It sets.Radial fastening assembly 69 may include the radial fastening bolt that multiple circumferential uniform intervals along flange 61 are arranged.Radial fastening
Component 69 can be used for the activation of the first radial direction seal ring 31, the second radial direction seal ring 32, when flange 61 is in radial fastening assembly 69
Under the action of push when squeezing the first radial direction seal ring 31, the second radial direction seal ring 32, the first radial direction seal ring 31, second is radial
Sealing ring 32 and first axis sealing strip 41, the coastal pipe radial direction of the second axial sealing stripe 42, which occur to squeeze, to be contacted, and realizes the
One axial sealing stripe 41, the second axial sealing stripe 42 and the first radial direction seal ring 31,32 junction of the second radial direction seal ring are being set
Count the sealing under sealed pressure.
Slip sleeve 62 connect with flange 61 and is projecting axially into shell, can be sticked in the first clamping groove 214, second
The inner sidewall of clamping groove 224.Further, slip sleeve 62 can be structure as a whole with flange 61.Slips 63 is fitted to slips
The inner sidewall of set 62 can firmly grasp the outer wall of extra large pipe 1 under the promotion of slip sleeve 62.The inner sidewall of slip sleeve 62, slips 63
Lateral wall be respectively equipped at least one first promptly tooth 621, at least one second promptly tooth 631, first promptly tooth 621 and second
Promptly tooth 631 cooperates.Further, the first outside wall surface that promptly inner wall of tooth 621, second firmly grasp tooth 631 is the conical surface
Shape, and the diameter of the conical surface is gradually increased from one end towards flange 61 to one end far from flange 61.First firmly grasps in tooth 621
The conical surface of wall surface and the conical surface of the second promptly 631 outside wall surface of tooth cooperate, and are driven, can pushed by contact between the conical surface
When slips 63, pushing slip sleeve 62, the heart is moved thereto along the radial direction of shell, and then promptly extra large pipe 1, while realizing pair of pipe clamp
Middle operation.The inner sidewall of slips 63 can also be equipped with third and firmly grasp tooth 632, in order to firmly grasp 1 outer wall of extra large pipe.Push rod 64 is arranged in card
Watt set 62 one end far from flange 61, can be arranged along the axial direction of the housing.Push rod 64 can be one or more, and can be along slips
The circumferential uniform intervals setting of set 62.
Radial seal is compressed ring 65 and is arranged between push rod 64 and the first radial direction seal ring 31, and radial seal slip ring 66 is arranged
Between the first radial direction seal ring 31 and the second radial direction seal ring 32, radial seal baffle ring 68 is arranged in the second radial direction seal ring 32
One end far from the first radial direction seal ring 31.Ring 65, radial seal slip ring 66, radial seal baffle ring 68 are compressed in radial seal
It is sticked in the inner sidewall of the first clamping groove 214, the second clamping groove 224.First clamping groove 214, the second clamping groove 224 are corresponding radial
The position of seal stopper ring 68 is formed with step, and radial seal baffle ring 68 is resisted against at the step.In the work of radial fastening assembly 69
Under, the flange 61 at shell both ends pushes radial seal to compress ring 65 and radial seal slip ring 66 by push rod 64, to squeeze
First radial direction seal ring 31, the second radial direction seal ring 32.First radial direction seal ring 31, the second radial direction seal ring 32 are in coastal pipe axis
It under the action of the extruding force of direction, deforms and pushes against extra large pipe outer wall, generate contact pressure, realize sealing.
First radial direction seal ring 31, the second radial direction seal ring 32 axial sides be also provided with radial seal stop collar
67, the first radial direction seal ring 31, the second radial direction seal ring 32 are fastened on respectively between every two radial seal stop collar 67.It is radial
Sealing stop collar 67 is used to limit the position of the first radial direction seal ring 31, the second radial direction seal ring 32, when the first radial direction seal ring
31, when the second radial direction seal ring 32 is compressed, its radial deformation is guided, to block the radial clearance between shell and extra large pipe 1.
Radial seal stop collar 67 can be sticked in the inner sidewall of the first clamping groove 214, the second clamping groove 224, and stainless steel etc. can be used
Metal material is made.The section of radial seal stop collar 67 can be L-shaped, axial close towards first axis sealing strip 41, second
The side of strip of paper used for sealing 42 has opening, in order to which the first radial direction seal ring 31, the second radial direction seal ring 32 can be fitted tightly over first
On axial sealing stripe 41, the second axial sealing stripe 42.Locking mechanism in the present invention, structure is more flexible, convenient for applying in difference
In the shell of length, first axis sealing strip 41, the installation site of the second axial sealing stripe 42 are also more flexible, convenient for meeting not
With the leak stopping demand of sea pipe.
In other embodiments, locking mechanism can also be realized by other structures mode.For example, can not also in locking mechanism
It is provided with push rod 64, radial seal compression ring 65, and the first radial direction seal ring 31 is pushed directly on by slips 63 and/or slip sleeve 62
With the second radial direction seal ring 32；Radial seal baffle ring 68 can also be not provided in locking mechanism, the second radial direction seal ring 32 is directly
It is resisted against at the step of the first clamping groove 214, the second clamping groove 224.
In some embodiments, which may also include sealing test component 7.
Sealing test component 7 can be connect with ROV, be operated by ROV.
Sealing test component 7 may include the operation panel 72 being arranged on shell and connect with operation panel 72 into
Oil pipe 73.The oil outlet of oil inlet pipe 73 is connected with the sealing lumen 34 in sealing structure, after installation is complete, can by this into
Oil pipe 73 does pressure test to sealing lumen 34, to test whether sealing system reaches design requirement.Operation panel 72 can be set
It sets on the outer wall of first shell 21.Operation panel 72 includes the pressure sensing devices such as pressure gauge, pressure sensor, in order to survey
Try and show all data of pressure test.It is also provided with ROV interface on operation panel 72, is grasped in order to connect ROV
Make.
Sealing test component 7 may also include at least one hydraulic cylinder 71.The telescopic direction and first shell 21 of hydraulic cylinder 71,
The folding direction of second shell 22 is parallel, drives first shell 21 and second shell 22 to open by the stretching motion of hydraulic cylinder 71
It closes.In the present embodiment, sealing test component 7 may include two groups of hydraulic cylinders 71 for being separately positioned on shell axial ends, every group
Hydraulic cylinder 71 includes at least one hydraulic cylinder.
In some embodiments, which, which may also include, is arranged in outside shell
Sacrificial anode 23, the underwater anti-corrosion for submarine pipeline maintenance pipe clamp.The mountable outer wall in first shell 21 of sacrificial anode 23
On.
In the present invention for submarine pipeline maintenance pipe clamp sealing device installation process approximately as: in submarine pipeline
After repairing pipe clamp decentralization in place, 72 driving hydraulic cylinder 71 of operation panel, first shell 21 and second are first passed through by diver or ROV
Shell 22 is rotated around connecting rod 26, and first shell 21 and second shell 22 are closed；Make-up axially fastens component 8, by first shell
Body 21 and second shell 22 tighten together, while compressing activation first axis sealing strip 41, the second axial sealing stripe 42；Again by
Diver or ROV operation tighten radial fastening assembly 69, push slips 63 to firmly grasp the outer wall of extra large pipe 1, while compressing activation first
Radial direction seal ring 31, the second radial direction seal ring 32；Finally, doing pressure test to sealing lumen 34 by oil inlet pipe 73, guaranteeing
After pressure does not decline in a period of time, it can confirm that sealing system reaches design requirement, installation process terminates.
Sealing device in the present invention is particularly suitable for the submarine pipeline maintenance pipe clamp of deepwater field, can by diver or
ROV operation installation activation, has the advantages that high sealing reliability, activation are easy, safety is good, maintenance cost is low etc.；Swashing
Pressure test can be sealed to the sealing lumen in double-layer seal system after the completion of work, with ensure sealing system installation activation at
Function；Sealed pressure is big, and maximum sealed pressure can achieve 38MPa or more, has apparent advantage and broad application prospect.It can
To understand ground, the structure of sealing device includes but is not limited to double-layer seal system in the present invention, also can be applied to three layers or
In three layers or more of sealing system.
It is to be appreciated that above-mentioned each technical characteristic can be used in any combination and unrestricted.
Above embodiments only express the preferred embodiment of the present invention, and the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as；It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, above-mentioned technical characterstic can be freely combined, several deformations can also be made
And improvement, these are all within the scope of protection of the present invention；Therefore, all equivalents done with scope of the invention as claimed with
Modification, should belong to the covering scope of the claims in the present invention.
Claims (10)
1. a kind of sealing device for submarine pipeline maintenance pipe clamp, which is characterized in that including shell, locking mechanism, sealing knot
Structure；
The shell includes the first shell (21) and second shell (22) installed that cooperate；
The sealing structure includes the first axis sealing strip (41) disposed in the housing along the axial direction of the shell
First axis sealing strip (41) both ends are separately positioned on the second axial sealing stripe (42), along the radial direction of the shell
The first radial direction seal ring (31) and be separately positioned on second axial sealing stripe (42) along the radial direction of the shell
Second radial direction seal ring (32) at both ends；
The axial length of the first axis sealing strip (41) is greater than the axial length of second axial sealing stripe (42), described
First radial direction seal ring (31), the second radial direction seal ring (32) include the first half portion being arranged in the first shell (21)
(311) and the second half portion (312) in the second shell (22) is set；
The locking mechanism is separately positioned on the both ends of the shell, to push first radial direction seal ring (31), the second diameter
The first axis sealing strip (41), the second axial sealing stripe (42) are pushed against respectively to sealing ring (32).
2. the sealing device according to claim 1 for submarine pipeline maintenance pipe clamp, which is characterized in that the first shell
Body (21) is equipped with the first binding face (213) for be bonded with the second shell (22), the second shell (22) equipped with
The second binding face (223) of the first shell (21) fitting is offered respectively for placing on first binding face (213)
The first axis sealing strip (41), the second axial sealing stripe (42) not connected first groove (211), second groove
(212)。
3. the sealing device according to claim 2 for submarine pipeline maintenance pipe clamp, which is characterized in that second axis
It is in vertical bar shape, the position edge of corresponding second axial sealing stripe (42) of the first axis sealing strip (41) to sealing strip (42)
It projects radially outward and is formed with bending part (411).
4. the sealing device according to claim 2 for submarine pipeline maintenance pipe clamp, which is characterized in that the first axle
Cross section to sealing strip (41), the second axial sealing stripe (42) is circle, the first groove (211), second groove
It (212) is square trench, the cross-sectional area of the square trench is close slightly larger than the first axis sealing strip (41), the second axial direction
The cross-sectional area of strip of paper used for sealing (42).
5. the sealing device according to claim 1 for submarine pipeline maintenance pipe clamp, which is characterized in that the first axle
Fluorine is all made of to sealing strip (41), the second axial sealing stripe (42), the first radial direction seal ring (31), the second radial direction seal ring (32)
Rubber material is made.
6. the sealing device according to claim 1 for submarine pipeline maintenance pipe clamp, which is characterized in that described the first half
Portion (311) and the junction of second half portion (312) are equipped with the dentalation being mutually twisted.
7. the sealing device according to claim 1 for submarine pipeline maintenance pipe clamp, which is characterized in that the sealing knot
Structure further includes sealing test component (7), and the sealing test component (7) includes the operation panel of setting on the housing
(72) and with the operation panel (72) oil inlet pipe (73) connecting；
The first axis sealing strip (41), the second axial sealing stripe (42), the first radial direction seal ring (31), the second radial seal
Sealing lumen (34) is formed between circle (32), the oil outlet of the oil inlet pipe (73) is connected with the sealing lumen (34).
8. the sealing device according to claim 1 for submarine pipeline maintenance pipe clamp, which is characterized in that the locking knot
Structure includes the flange (61) being arranged in outside the shell end face, connect and be projecting axially into the shell with the flange (61)
Slip sleeve (62), cooperation are separate described in the slip sleeve (62) in the slips (63) of the slip sleeve (62) inner sidewall, setting
The push rod (64) of flange (61) one end and the radial fastening assembly (69) of the fixed flange (61) and the shell；
The sealing device further includes axially fastening group for fix the first shell (21) and the second shell (22)
Part (8), it is described to axially fasten component (8) and the radial fastening assembly (69) is perpendicular.
9. the sealing device according to claim 8 for submarine pipeline maintenance pipe clamp, which is characterized in that the locking knot
Structure further includes radial seal compression ring (65) being arranged between the push rod (64) and first radial direction seal ring (31), sets
Set radial seal slip ring (66) between first radial direction seal ring (31) and second radial direction seal ring (32) and
Radial seal baffle ring (68) in second radial direction seal ring (32) far from described first radial direction seal ring (31) one end is set.
10. the sealing device according to claim 1 for submarine pipeline maintenance pipe clamp, which is characterized in that the locking
Structure includes radial seal stop collar (67), and first radial direction seal ring (31), the second radial direction seal ring (32) block respectively to be set
Between every two radial seal stop collar (67)；The section of the radial seal stop collar (67) is L-shaped, the radial seal
Stop collar (67) has opening towards the side of the first axis sealing strip (41), the second axial sealing stripe (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910472370.8A CN110206962A (en) | 2019-05-31 | 2019-05-31 | A kind of sealing device for submarine pipeline maintenance pipe clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910472370.8A CN110206962A (en) | 2019-05-31 | 2019-05-31 | A kind of sealing device for submarine pipeline maintenance pipe clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110206962A true CN110206962A (en) | 2019-09-06 |
Family
ID=67790112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910472370.8A Pending CN110206962A (en) | 2019-05-31 | 2019-05-31 | A kind of sealing device for submarine pipeline maintenance pipe clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110206962A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541995A (en) * | 2019-08-27 | 2019-12-06 | 深圳海油工程水下技术有限公司 | Clamping device of submarine pipeline plugging pipe and submarine pipeline plugging equipment |
| CN110541996A (en) * | 2019-08-27 | 2019-12-06 | 深圳海油工程水下技术有限公司 | Sealing device of sea pipe leaking stoppage pipe clamp and sea pipe leaking stoppage equipment |
| CN110682254A (en) * | 2019-10-24 | 2020-01-14 | 深圳海油工程水下技术有限公司 | Sea pipe leaking stoppage pipe clamp installation device |
| CN113669531A (en) * | 2021-08-26 | 2021-11-19 | 江苏亚星波纹管有限公司 | Maintenance-free omnibearing rotary compensator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541995A (en) * | 2019-08-27 | 2019-12-06 | 深圳海油工程水下技术有限公司 | Clamping device of submarine pipeline plugging pipe and submarine pipeline plugging equipment |
| CN110541996A (en) * | 2019-08-27 | 2019-12-06 | 深圳海油工程水下技术有限公司 | Sealing device of sea pipe leaking stoppage pipe clamp and sea pipe leaking stoppage equipment |
| CN110682254A (en) * | 2019-10-24 | 2020-01-14 | 深圳海油工程水下技术有限公司 | Sea pipe leaking stoppage pipe clamp installation device |
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| CN113669531A (en) * | 2021-08-26 | 2021-11-19 | 江苏亚星波纹管有限公司 | Maintenance-free omnibearing rotary compensator |
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