CN107654775B - A kind of submarine pipeline connecting flange - Google Patents
A kind of submarine pipeline connecting flange Download PDFInfo
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- CN107654775B CN107654775B CN201711225780.XA CN201711225780A CN107654775B CN 107654775 B CN107654775 B CN 107654775B CN 201711225780 A CN201711225780 A CN 201711225780A CN 107654775 B CN107654775 B CN 107654775B
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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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Gasket Seals (AREA)
Abstract
The present invention relates to a kind of submarine pipeline connecting flanges, by housing system, hold system tightly and sealing system is constituted, it is characterized in that: holding system and sealing system are installed in the cavity of housing system, pipeline is installed in holding system and sealing system.Working principle: turning nut moves axially rotary flange, and rotary flange, which moves axially to push in turn, holds cylinder axial movement tightly, and holding cylinder tightly axially extends radially out holding column, holds column tightly and extends radially out to hold pipeline tightly；Puller bolt is turned, then the compression degree of metal o-ring can be changed, to realize the purpose for changing sealing force size.Compared with prior art, the diameter enclasping force and sealed pressure of the independent adjustment device of the present invention, it and is underwater submarine pipeline Fast Installation flange, realize the quick reparation connection of submarine pipeline, it so as to shorten submarine pipeline repairing efficiency, reduces labor intensity, and reduces the overall cost of marine oil and gas conveying.
Description
Technical field
The present invention relates to petroleum gas submarine pipelines to repair equipment technology field, in particular to a kind of submarine pipeline connection
Flange.
Background technique
With the shortage of landing field petroleum resources, coastal countries are explored and have been opened to Marine oil and gas resource successively
It adopts, and has gradually become the main trend of domestic and international oil and gas industry development with exploitation to the exploration of Marine oil and gas resource.In addition, with
China's economy grow continuously and fast, petroleum resources insufficient supply will become hinder economic development principal contradiction, for improve oil
The occupancy volume of gas resource, the exploration and exploitation of marine oil and gas have become the strategic emphasis that China realizes energy sustainable development.
Submarine pipeline, which carries subsea well and goes out liquid, seabed crude oil, natural gas and association gas medium, transports etc. important
Business, thus the operation of the safety and stability of submarine pipeline is of great significance to the development and utilization of Marine oil and gas resource.Due to seabed
The particular surroundings of operating condition and surrounding seawater, there are fatigue rupture, geological disaster destruction, corrosion failures, ship for submarine pipeline
Cast anchor the risks such as destruction and marine exploration and development damage from third-party, and submarine pipeline is once revealed, not only can to downstream and
Terminal user it is normal production and life adversely affect, but also will cause marine environmental pollution, petroleum resources waste and
Oil field production disruption.
If submarine pipeline encounters damage or destruction at runtime, reparation or reinforcement need to be carried out to it.Submarine pipeline is repaired at present
Multiple or reinforcement technology has: pipe clamp leak stopping, composite material reinforcement and underwater pipeline section replace three kinds of main submarine pipelines and repair skill
Art.Wherein, composite material Strengthening Technology, such as note epoxy resin material, the recovery technique easily generate the tube body of submarine pipeline
Impact failure, and the device is complicated and huge for implanter, and from work and underwater operation complex process, these are all unfavorable for live material
The quick reparation of submarine pipeline.Pipe clamp leak stopping recovery technique is blocked using mechanical, be the advantage is that and is implemented simple, operation week
Phase is short, pipe leakage caused by can be used for Bohai Offshore due to burn into base material defect, crackle etc., once but submarine pipeline
When occurring seriously destroying or have moderate finite deformation and submarine pipeline to be in relatively depth or deep water sea area, which is just difficult to realize effectively
Closure reparation.Seabed pipe Replacement and Repair technology is its main feature is that have a wide range of application, the various forms such as achievable corrosion or fracture
Submarine pipeline destroy repair；Seabed pipe replacement is divided into: submarine pipeline welding replacement technology is connected with submarine pipeline connector
Technology.And submarine pipeline welding replacement technology that there are processes is more, to environmental requirement height, structure is complicated, can not achieve quick-replaceable,
Therefore pipeline section replacement is inefficient, and the reliability of connection is undesirable；Submarine pipeline connector technique can solve the above problem, but lack
Point, which is reparation, rests in always state with the production of mechanical connector this key spare parts and its repair device and work flow
In outer specialized company's hand, domestic corresponding equipment and technology are less.In addition, the equipment master that seabed pipe both domestic and external is replaced at present
It will be based on connector, as patent No. CN201620156196.8 discloses a kind of novel seabed pipe jointer, the patent No.
CN201510054118.7 discloses a kind of submarine pipeline clip reparation connector, and patent No. CN201621328659.0 is disclosed
A kind of submarine pipeline device for plugging and split type submarine pipeline blocking clamper, a kind of adjustable offset of patent No. CN201610319504.9
Formula submarine pipeline quickly repairs attachment device.And the middle sealing force size of above-mentioned apparatus has the pretightning force size of bolt to determine, and
Bolt will realize radial holding pipeline, and have the connection realized between flange end cap, cannot so as to cause the size of sealing force
It is separately adjustable；If bolt pretightening is too small, it will lead to the too small sealing force deficiency that is not enough to of sealing force and reveal, if tools for bolts ' pretension
Power is excessive, will reduce the service life of sealing system.It would therefore be highly desirable to design a kind of radial enclasping force and sealing force can be separately adjustable
Device.
Summary of the invention
In order to overcome the disadvantages mentioned above of existing seabed pipe more replacing equipment, the purpose of the present invention is to provide a kind of subaqueous pipes
Road connecting flange, which can be underwater submarine pipeline Fast Installation flange, and sealing force, radial enclasping force size all can be only
It is vertical to adjust, and then realize the quick reparation connection of submarine pipeline, shorten the repairing efficiency of submarine pipeline.
In order to achieve the above object, the technical scheme of the present invention is realized as follows:
A kind of submarine pipeline connecting flange is held tightly system 2 and sealing system 3 is constituted by housing system 1, it is characterized in that: shell
Holding system 2 is installed on the left of the inner surface of system system 1, sealing system 3 is installed in the inner surface right side of housing system 1；
The inner surface of holding system 2 and sealing system 3 contacts respectively pipeline 4；
The housing system 1 includes rotary flange 11 and mounting flange 12；Rotary flange 11 is cyclic annular in open circles, and annulus is left
End face design has uniformly distributed regular hexagon blind hole, bolt head is equipped in regular hexagon blind hole, the bottom surface of regular hexagon blind hole is set
In respect of circular through hole, bolt, which passes through circular through hole, connects rotary flange 11 with the formation of mounting flange 12 bolt fastening；Mobile Method
Design has small through hole on the inside of blue 11 left sides, has the polished rod of puller bolt 31 to pass through in small through hole, the bolt head of puller bolt 31
It is in close contact with rotary flange 11；The right side design of rotary flange 11 has an annulus protrusion 13, the outer surface of annulus protrusion 13 with
The inner surface of ladder cylinder 21 contacts；The inner surface of mounting flange 12 designs big stepped hole 14, middle stepped hole 15 and small stepped hole 16,
Holding system 2 is installed in big stepped hole 14, sealing system 3 is installed in middle stepped hole 15, rubber is installed in small stepped hole 16
Glue gasket 34；Middle 15 end face of stepped hole design has first annular groove, and metal o-ring 33 is equipped in first annular groove；Gu
Determining design in the middle part of 12 outer surface of flange has outwardly directed step, and step end face design has uniformly distributed first through hole, and bolt passes through
First through hole and nut are fastenedly connected rotary flange 11 with the formation of mounting flange 12；The right side design of mounting flange 12 has
Second through-hole of cloth, another bolt, which passes through the second through-hole, connect mounting flange 12 with prefabricated flange pipe 5 formation bolt fastening；
The holding system 2 includes ladder cylinder 21, holds cylinder 22 tightly, holds column 23, trapezoid block 24, positioning pin 25 tightly；Ladder cylinder
21 be in hollow stepped cylinder, and the left side design of ladder cylinder 21 has long through-hole 26, and the design of 26 end face of long through-hole has threaded hole, spiral shell
The internal screw thread of pit and the external screw thread of puller bolt 31 are mutually twisted；The right side design of ladder cylinder 21 has interior ladder 27, interior rank
Terraced 27 left sides are evenly equipped with blind hole, and positioning pin 25 is fitted in blind hole；The inner surface of ladder cylinder 21 is outer with holding cylinder 22
Surface contact, the inner surface design for holding cylinder 22 tightly have the wedge surface being evenly distributed；It holds the wedge surface of cylinder 22 tightly and holds 23 top of column tightly
Contact is held column 23 tightly and is installed in trapezoid block 24；Holding column 23 is cylindrical, and the tip designs for holding column 23 tightly have wedge surface, holds tightly
The wedge surface of column 23 and the wedge surface for holding cylinder 22 tightly, which cooperate, to be slid；The bottom end design for holding column 23 tightly has ball, and ball passes through trapezoidal
Block 24 and tube contacts；The middle part design for holding column 23 tightly has multi-diameter shaft, and the lower end face contact of multi-diameter shaft has pressure spring, and pressure spring bottom connects
Touching has trapezoid block 24；24 inner surface of trapezoid block be it is arc-shaped, the outer surface of trapezoid block 24 is stairstepping, and the surface of per pass ladder is equal
Design has vertical through-hole, is inserted in vertical through-hole and holds column 23 tightly；The right side design of ladder block has blind hole, is coupled in blind hole
There is positioning pin 25, the right side of trapezoid block 24 is contacted with the interior ladder 27 of ladder cylinder 21；
The sealing system 3 includes puller bolt 31, shift(ing) ring 32, metal o-ring 33, rubber sheet gasket 34；Puller bolt
The bolt head in 31 left side is contacted with rotary flange 11, and the external screw thread and 21 screw-internal thread fit of ladder cylinder of puller bolt 31 are held out against
The right side of bolt 31 is contacted with shift(ing) ring 32；The right side design of shift(ing) ring 32 has second annular groove, second annular groove
Metal o-ring 33 is inside installed, metal o-ring 33 is H-shaped；The inner surface of metal o-ring 33 is provided with third annular groove；
Rubber sheet gasket 34 is installed between pipeline and the small stepped hole 16 of mounting flange 12.
Compared with the prior art, the beneficial effects of the present invention are: (1) is that submarine pipeline replaces section quick Fabrication flange, from
And realize the quick connection of replacement segment pipe；(2) size of present apparatus sealing force can carry out separately adjustable, and then guarantee flange
Connect safety, the reliability of sealing；(3) present apparatus can also be separately adjustable to the radial enclasping force of pipeline, to make diameter
The adjusting of adjusting and sealing force to enclasping force separates, and ensure that the present apparatus to the radial holding ability of pipeline；(4) present apparatus
Bulb holds column and tube contacts tightly, to reduce holding system to the Clamping damage of pipeline.
Detailed description of the invention
Section plan Fig. 1 of the invention.
Schematic three dimensional views Fig. 2 of the invention.
Three dimensional sectional view Fig. 3 of the invention.
Three-dimensional planar cross-sectional view Fig. 4 of the invention.
Fig. 5 housing system three dimensional sectional view.
Fig. 6 housing system three-dimensional planar cross-sectional view.
The connection schematic diagram of Fig. 7 rotary flange and bolt.
The connection schematic diagram of Fig. 8 mounting flange and bolt.
Fig. 9 holds system schematic three dimensional views tightly.
Figure 10 holds system three-dimensional perspective view of the explosion tightly.
Figure 11 ladder cylinder three-dimensional planar cross-sectional view.
Figure 12 holds cylinder three-dimensional planar cross-sectional view tightly.
The scheme of installation of Figure 13 holding column and trapezoid block.
Figure 14 single group holds column tightly and holds the scheme of installation of block tightly.
Figure 15 holds column tightly and holds the three dimensional sectional view of block tightly.
Figure 16 is the perspective view of the explosion for holding block and trapezoid block and positioning pin tightly.
Figure 17 is the three-dimensional planar sterogram of trapezoid block.
Figure 18 is sealing system schematic three dimensional views.
Figure 19 is shift(ing) ring three dimensional sectional view.
Figure 20 is metal o-ring three dimensional sectional view.
Figure 21 is the connection schematic diagram of pipeline and prefabricated flange.
1. housing system, 2. hold system, 3. sealing systems, 4. casings, 5. prefabricated flange pipes tightly；11. rotary flange,
12. mounting flange, 13. annulus are raised, 14. big stepped holes, stepped hole in 15., 16. small stepped holes；21. ladder cylinder, 22. hold tightly
Cylinder, 23. hold columns, 24. trapezoid blocks, 25. positioning pins, 26. long through-holes, ladder in 27. tightly；31. puller bolt, 32. shift(ing) rings,
33. metal o-ring, 34. rubber sheet gaskets.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
Referring to Fig.1~Fig. 3, Figure 21, a kind of submarine pipeline connecting flange hold system 2 and sealing system tightly by housing system 1
System 3 is constituted, it is characterized in that: holding system 2, the inner surface right side of housing system 1 are installed on the left of the inner surface of housing system 1
Sealing system 3 is inside installed, holding system 2 and the contact of 3 inner surface of sealing system have pipeline 4.Its working principle is that: turn nut
Move axially rotary flange 11 along 12 direction of mounting flange, the axial movement of rotary flange 11 holds 22 axis of cylinder tightly to push
To movement, the axial movement of cylinder 22 is held tightly to make to hold tightly cylinder 22 and hold column 23 tightly, Relative sliding occurs, held column 23 tightly and occur relatively
Sliding holds out against pipeline external surface to make holding column 23 extend radially out, and then realizes and hold the radial purpose for holding pipeline tightly of column 23 tightly,
And apply different pretightning forces to bolt, different radial enclasping forces can be obtained, to realize separately adjustable radial enclasping force
Purpose；Puller bolt 31 is turned, puller bolt 31 moves axially and then shift(ing) ring 32 is pushed to move axially, and shift(ing) ring 32 is axial to be moved
It is dynamic to be in turn in close contact metal o-ring 33 and mounting flange 12, by adjusting the axial movement distance of puller bolt 31, then
The compression degree of changeable metal o-ring 33, to realize the purpose for changing sealing force size, and the size of sealing force can be with
It is separately adjustable.
Referring to Fig. 4~Fig. 7, housing system 1 includes rotary flange 11 and mounting flange 12.Rotary flange 11 is pushed up for axial
Tight cylinder 22 is hugged, and forms the cavity of sealing with shell.Rotary flange 11 is cyclic annular in open circles, and the design of annulus left side has uniformly distributed
Regular hexagon blind hole, regular hexagon blind hole be used for tools for bolts ' pretension when bearing bolt reaction torque；Installation in regular hexagon blind hole
There is bolt head, the floor design of regular hexagon blind hole has circular through hole, and bolt, which passes through circular through hole, to be made rotary flange 11 and fix
Flange 12 forms bolt fastening connection.Design has small through hole on the inside of 11 left side of rotary flange, and small through hole holds out against spiral shell for installing
Bolt 31；There is the polished rod of puller bolt 31 to pass through in small through hole, the bolt head and rotary flange 11 of puller bolt 31 are in close contact.It moves
The right side design of dynamic flange 11 has annulus protrusion 13, and annulus protrusion 13 makes the outer of annulus protrusion 13 for being inserted into stepped hole
Surface is contacted with the inner surface of ladder cylinder 21, to carry the bending load of pipeline.
Referring to Fig. 8, Figure 21, mounting flange 12 is for installing holding system 2 and sealing system 3.Mounting flange 12 is in hollow
The inner surface of ladder shaft-like, mounting flange 12 designs big stepped hole 14, middle stepped hole 15 and small stepped hole 16.Big stepped hole 14 is used
In installation holding system 2, middle stepped hole 15 is for installing sealing system 3, and small stepped hole 16 is for installing rubber sheet gasket 34.Scala media
Terraced 15 end face of hole design has half H-shaped annular groove, metal o-ring 33 is equipped in annular groove, to prevent oil gas from revealing.
Design has outwardly directed step in the middle part of 12 outer surface of mounting flange, and step end face design has uniformly distributed through-hole, and through-hole end face connects
Touching has nut, and bolt, which passes through through-hole and nut, is fastenedly connected rotary flange 11 with the formation of mounting flange 12.Mounting flange 12
Right side design has uniformly distributed through-hole, and bolt, which passes through through-hole, makes mounting flange 12 and prefabricated flange pipe 5 form bolt fastening company
It connects.
Referring to Fig. 9~Figure 11, holding system 2 tightly includes ladder cylinder 21, holds cylinder 22 tightly, holds column 23, trapezoid block 24, positioning pin tightly
25.Ladder cylinder 21 holds cylinder 22 and puller bolt 31 tightly for installing.Holding cylinder 22 tightly is in hollow stepped cylinder, a left side for ladder cylinder 21
End face design has long through-hole 26, and long through-hole 26 is for installing puller bolt 31；The design of 26 end face of long through-hole has threaded hole, threaded hole
The external screw thread of internal screw thread and puller bolt 31 be mutually twisted, so that puller bolt 31 be made so that puller bolt 31 is held out against shifting when rotating
Rotating ring 32.The right side design of ladder cylinder 21 has interior ladder 27, and interior ladder 27 is used for location and installation trapezoid block 24；Interior ladder 27 is left
End face is evenly equipped with blind hole, positioning pin 25 is fitted in blind hole, positioning pin 25 is for installing trapezoid block 24.Ladder cylinder 21 it is interior
Surface and the appearance face contact for holding cylinder 22 tightly, to carry the bending load of pipeline.
Referring to Fig.1 2, cylinder 22 is held tightly for pushing and holds that 23 diameter of column is mobile tightly, realizes that holding the radial of column 23 tightly holds function tightly.It embraces
Tight cylinder 22 is in hollow cylindrical, and the inner surface design of cylinder has 12 wedge surfaces being evenly distributed, and holds the wedge surface of cylinder 22 tightly and embraces
Tight column 23 contacts, and Relative sliding can occur.Make to hold the stretching of 23 diameter of column tightly when holding cylinder 22 tightly and moving axially, to make to hold tightly
Column 23 is radial to hold pipeline tightly.
Referring to Fig.1 3~16, column 23 is held tightly for radial and holds out against pipeline, and reduces the damage of pipeline.Column is held out against in cylinder
Shape, the tip designs for holding column 23 tightly have wedge surface, and the wedge surface for holding column 23 tightly and the wedge surface for holding cylinder 22 tightly cooperate and slide, and work as holding
Cylinder 22 makes to hold the stretching of 23 diameter of column tightly when moving axially, to make holding column 23 is radial to hold pipeline tightly.Hold the bottom end design of column 23 tightly
There is ball, ball passes through trapezoid block 24 and tube contacts, and ball and tube contacts, which can be reduced, holds column 23 tightly to pipeline external surface
Damage.The middle part design for holding column 23 tightly has multi-diameter shaft, and pressure spring is cased on the downside of multi-diameter shaft, and pressure spring is used to overcome the weight for holding column 23 tightly
Power, to prevent from holding the sagging installation for interfering pipeline due to gravity of column 23 tightly；Pressure spring bottom is contacted with trapezoid block 24.
Referring to Fig.1 7, trapezoid block 24 holds column 23 tightly for installing, and supports pressure spring.24 inner surface of trapezoid block be it is arc-shaped,
The outer surface of trapezoid block 24 is stairstepping, and the bottom surface of per pass ladder is designed with circular through hole, and circular through hole is held tightly for installing
Column 23.The right side design of ladder block has blind hole, and blind hole is for installing positioning pin 25.The right side of trapezoid block 24 and ladder cylinder 21
Interior ladder 27 contact, the installation of positioning pin 25 in the blind hole of trapezoid block 24 and ladder cylinder 21.
Referring to Fig.1 8, sealing system 3 includes puller bolt 31, shift(ing) ring 32, metal o-ring 33, rubber sheet gasket 34.Top
Tight bolt 31 is used to adjust the size of 33 sealing force of metal o-ring.The bolt head of puller bolt 31 is contacted with rotary flange 11,
The external screw thread and ladder bushing screw-internal thread fit of puller bolt 31.The right side of puller bolt 31 is contacted with shift(ing) ring 32, is turned
Fixed tight bolt just will push the axial movement of shift(ing) ring 32, and shift(ing) ring 32 moves axially and then carries out metal o-ring 33 to pipeline
Sealing.
9~Figure 20 referring to Fig.1, shift(ing) ring 32 is for compressing metal o-ring 33.The right side design of shift(ing) ring 32 has half H
Shape annular groove is equipped with metal o-ring 33 in annular groove.Metal o-ring 33 is H-shaped, using H-shaped metal o-ring 33
Two seals can be formed to pipeline；The inner surface of metal o-ring 33 is provided with annular groove, and annular groove is close for discharging metal
The part stress of 33 deformation process of seal.Rubber sheet gasketing is first of sealing of device, for preventing the oil gas in pipeline
Leakage；Rubber sheet gasket 34 is installed between pipeline and the small stepped hole 16 of mounting flange 12.
Claims (1)
1. a kind of submarine pipeline connecting flange is held tightly system (2) and sealing system (3) is constituted, feature by housing system (1)
Are as follows: it is equipped with holding system (2) on the left of the inner surface of housing system (1), is equipped in the inner surface right side of housing system (1)
Sealing system (3)；The inner surface of holding system (2) and sealing system (3) contacts respectively pipeline (4)；
The housing system (1) includes rotary flange (11) and mounting flange (12)；Rotary flange (11) is cyclic annular in open circles, circle
The design of ring left side has uniformly distributed regular hexagon blind hole, and bolt head, the bottom of regular hexagon blind hole are equipped in regular hexagon blind hole
Face design has circular through hole, and bolt, which passes through circular through hole, makes rotary flange (11) and mounting flange (12) form bolt fastening company
It connects；Design has small through hole on the inside of rotary flange (11) left side, has the polished rod of puller bolt (31) to pass through in small through hole, holds out against spiral shell
The bolt head of bolt (31) and rotary flange (11) are in close contact；The right side design of rotary flange (11) has annulus protrusion (13),
The outer surface of annulus protrusion (13) is contacted with the inner surface of ladder cylinder (21)；The inner surface of mounting flange (12) designs big stepped hole
(14), middle stepped hole (15) and small stepped hole (16), big stepped hole (14) is interior to be equipped with holding system (2), middle stepped hole (15)
It is inside equipped with sealing system (3), rubber sheet gasket (34) is installed in small stepped hole (16)；The design of middle stepped hole (15) end face has the
One annular groove is equipped with metal o-ring (33) in first annular groove；Design is oriented in the middle part of mounting flange (12) outer surface
The step of outer stretching, step end face design have uniformly distributed first through hole, and bolt, which passes through first through hole and nut, makes rotary flange
(11) it is formed and is fastenedly connected with mounting flange (12)；The right side design of mounting flange (12) has the second uniformly distributed through-hole, another
Bolt, which passes through the second through-hole, connect mounting flange (12) with prefabricated flange pipe (5) formation bolt fastening；
The holding system (2) includes ladder cylinder (21), is held tightly cylinder (22), is held tightly column (23), trapezoid block (24), positioning pin
(25)；Ladder cylinder (21) is in hollow stepped cylinder, and the left side design of ladder cylinder (21) has long through-hole (26), long through-hole (26)
End face design has threaded hole, and the external screw thread of the internal screw thread and puller bolt (31) of threaded hole is mutually twisted；The right side of ladder cylinder (21)
End face design has interior ladder (27), and interior ladder (27) left side is evenly equipped with blind hole, and positioning pin (25) are fitted in blind hole；Rank
The inner surface of terraced cylinder (21) and the appearance face contact for holding cylinder (22) tightly, the inner surface design of holding cylinder (22) tightly, which has, to be evenly distributed
Wedge surface；The wedge surface for holding cylinder (22) tightly is contacted with column (23) top is held tightly, is held column (23) tightly and is installed in trapezoid block (24)；Hold column tightly
(23) cylindrical, the tip designs for holding column (23) tightly have wedge surface, hold the wedge surface of column (23) and the wedge surface phase for holding cylinder (22) tightly tightly
Mutually cooperation sliding；The bottom end design for holding column (23) tightly has ball, and ball passes through trapezoid block (24) and tube contacts；It holds tightly column (23)
Middle part design have a multi-diameter shaft, the lower end face contact of multi-diameter shaft has pressure spring, and the contact of pressure spring bottom has trapezoid block (24)；Trapezoid block
(24) inner surface is arc-shaped, and the outer surface of trapezoid block (24) is stairstepping, and the surface of per pass ladder is designed with vertical through-hole,
It is inserted in vertical through-hole and holds column (23) tightly；The right side design of ladder block has blind hole, and positioning pin (25) are fitted in blind hole,
The right side of trapezoid block (24) is contacted with the interior ladder (27) of ladder cylinder (21)；
The sealing system (3) includes puller bolt (31), shift(ing) ring (32), metal o-ring (33), rubber sheet gasket (34)；Top
The bolt head in the left side of tight bolt (31) is contacted with rotary flange (11), in the external screw thread of puller bolt (31) and ladder cylinder (21)
It is threadedly engaged, the right side of puller bolt (31) is contacted with shift(ing) ring (32)；The right side design of shift(ing) ring (32) has the second ring
Connected in star is equipped with metal o-ring (33) in second annular groove, and metal o-ring (33) is H-shaped；Metal o-ring (33)
Inner surface be provided with third annular groove；Rubber sheet gasket (34) be installed on pipeline and mounting flange (12) small stepped hole (16) it
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711225780.XA CN107654775B (en) | 2017-11-29 | 2017-11-29 | A kind of submarine pipeline connecting flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711225780.XA CN107654775B (en) | 2017-11-29 | 2017-11-29 | A kind of submarine pipeline connecting flange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107654775A CN107654775A (en) | 2018-02-02 |
| CN107654775B true CN107654775B (en) | 2019-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711225780.XA Expired - Fee Related CN107654775B (en) | 2017-11-29 | 2017-11-29 | A kind of submarine pipeline connecting flange |
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| CN107654775A (en) | 2018-02-02 |
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