CN107701834B - A kind of sealing force adjustable water lower flange - Google Patents
A kind of sealing force adjustable water lower flange Download PDFInfo
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- CN107701834B CN107701834B CN201711225935.XA CN201711225935A CN107701834B CN 107701834 B CN107701834 B CN 107701834B CN 201711225935 A CN201711225935 A CN 201711225935A CN 107701834 B CN107701834 B CN 107701834B
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- sealing
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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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
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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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
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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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
- Gasket Seals (AREA)
Abstract
The present invention relates to a kind of sealing force adjustable water lower flanges, by housing system, holds system tightly and sealing system is constituted, it is characterized in that: the inside left of housing system is equipped with holding system, inner right side is equipped with sealing system, and the inner surface contact of holding system and sealing system has pipeline.Working principle are as follows: turning nut makes fastening bolt push rotary flange axial movement, and rotary flange axial movement pushes hold-fast ring radial contraction, and hold-fast ring radial contraction holds pipeline tightly in turn;Puller bolt is turned, puller bolt pushes shift(ing) ring axial, shift(ing) ring axial movement and then compresses seal, is sealed after sealing ring compressive deformation and then to pipeline.Compared with prior art, the present invention can be separately adjustable to the radial enclasping force and sealing force of pipeline, and can be underwater submarine pipeline Fast Installation flange, realize the quick reparation connection of submarine pipeline, and then it short submarine pipeline repairing efficiency, reduces labor intensity, and reduce 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 sealing force is adjustable
Underwater 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 sealing forces
Adjustable water lower flange, which can be underwater submarine pipeline Fast Installation flange, and sealing force, radial enclasping force size are all
Can be separately adjustable, 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 sealing force adjustable water lower flange is held tightly system 2 and sealing system 3 is constituted, feature by housing system 1
Are as follows: the rotary flange 11 and mounting flange 12 of housing system 1 form cavity, are equipped with holding system 2 on the left of cavity, cavity
Right side is equipped with sealing system 3, and the inner surface contact of holding system 2 and sealing system 3 has pipeline 4;
The housing system 1 includes rotary flange 11 and mounting flange 12;Rotary flange 11 is in hollow ladder shaft-like, mobile
The big axis left side design of flange 11 has uniformly distributed regular hexagon blind hole, and the spiral shell of fastening bolt 19 is equipped in regular hexagon blind hole
Bolt head, the floor design of regular hexagon blind hole have circular through hole, and fastening bolt 19, which passes through circular through hole, to be made rotary flange 11 and consolidate
Determine flange 12 and forms bolt fastening connection;The inside design of regular hexagon blind hole has uniformly distributed small through hole 17, has in small through hole 17
The polished rod of puller bolt 31 passes through;The circumferential design of 17 end face of small through hole has ring-shaped groove 18, and the is equipped in ring-shaped groove 18
One sealing ring, the first sealing ring are contacted with gasket 32, and gasket 32 is pressed in 11 left side of rotary flange by puller bolt 31;It is mobile
The big axis right side design of flange 11 has small multi-diameter shaft 13, and the outer surface of small multi-diameter shaft 13 is contacted with the inner surface for holding cylinder 21 tightly;
Design has bellmouth, the appearance face contact of taper internal surface of hole and hold-fast ring 22 on the right side of the inner surface of small multi-diameter shaft 13;Mobile Method
The big axis right end face contact of orchid 11 has mounting flange 12;Mounting flange 12 is in hollow cylindrical, and the left side of mounting flange 12 is set
In respect of annular groove, the second sealing ring is installed in annular groove;The middle part design of mounting flange 12 has outwardly directed step, step
Interior design has uniformly distributed first through hole, and fastening bolt 19, which passes through first through hole, makes mounting flange 12 and rotary flange 11 form bolt
It is fastenedly connected;The right side design of mounting flange 12 has ring flange, and the design of flange side surface has for connecting prefabricated flange pipe 5
The second through-hole;The inner surface design of mounting flange 12 has big stepped hole 14, middle stepped hole 15 and small stepped hole 16, big stepped hole
Holding system 2 is installed in 14, sealing system 3 is installed in middle stepped hole 15, rubber sheet gasket 34 is installed in small stepped hole 16;
The holding system 2 includes holding cylinder 21 and hold-fast ring 22 tightly;Holding cylinder 21 is cylindrical, holds the left side of cylinder 21 tightly
Design has long through-hole 23, has puller bolt 31 to pass through in long through-hole 23, and the right side design of long through-hole 23 has threaded hole, threaded hole
The external screw thread of internal screw thread and puller bolt 31 be mutually twisted;The left side for holding cylinder 21 tightly is contacted with rotary flange 11, holds cylinder tightly
21 right sides are contacted with step in mounting flange 12;Holding the design of 21 inner surface of cylinder tightly has stepped hole, the right side design of stepped hole
There is conical bore, the outer surface of the inner surface and hold-fast ring 22 of conical bore contacts with each other;Hold-fast ring 22 is to be provided with rectangular notch 24
Annulus, the cross section of annulus are right angled isosceles triangle, and the inner surface design of hold-fast ring 22 has axial rectangle groove 25 and ring
To triangular groove 26;
The sealing system 3 includes puller bolt 31, gasket 32, shift(ing) ring 33 and rubber sheet gasket 34;The gasket 32 is pacified
Loaded between 11 left side of puller bolt 31 and rotary flange, the right side of gasket 32, which compresses, the first sealing ring;Puller bolt
31 have held out against shift(ing) ring 33 after the small through hole 17 of rotary flange 11 and the long through-hole 23 of holding cylinder 21;Shift(ing) ring 33 is in annulus
Shape, the right side of shift(ing) ring 33, which is circumferentially designed, circular groove, and third sealing ring is equipped in circular groove, and third is close
The right side of seal is contacted with 15 end face of middle stepped hole of mounting flange 12;Rubber sheet gasket 34 is installed on 4 end face of pipeline and fixation
In gap between blue 12 small stepped holes 16.
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
It is simple to hold holding system tightly, it is easy to manufacture, and then the production of the present apparatus, manufacturing cost can be reduced.
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.
Fig. 7 rotary flange three dimensional sectional view.
Fig. 8 mounting flange three dimensional sectional view.
Fig. 9 holds system three dimensional sectional view tightly.
Figure 10 holds cylinder three dimensional sectional view tightly.
The top view of Figure 11 hold-fast ring reset condition.
Figure 12 is the schematic three dimensional views after hold-fast ring is shunk.
Figure 13 is the partial enlarged view for holding ring inner surface tightly.
Figure 14 is sealing system schematic three dimensional views.
Figure 15 is shift(ing) ring schematic three dimensional views.
Figure 16 is the floor map after the present invention is connect with prefabricated flange pipe.
1. housing system, 2. hold system, 3. sealing systems, 4. casings, 5. prefabricated flange pipes tightly;11. rotary flange,
12. mounting flange, 13. small multi-diameter shafts, 14. big stepped holes, stepped hole in 15., 16. small stepped holes;17. small through hole, 18. annulars
Groove, 19. fastening bolts;21. hold cylinder tightly, 22. hold-fast rings, 23. long through-holes, 24. notches, 25. axial rectangular recess, 26. rings
Shape triangular groove;31. puller bolt, 32. gaskets, 33. shift(ing) rings, 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 16, a kind of 4 connecting flange of submarine pipeline hold system 2 and sealing system tightly by housing system 1
System 3 is constituted, it is characterized in that: the rotary flange 11 and mounting flange 12 of housing system 1 form cavity, are equipped with and embrace on the left of cavity
Clamping system 2, sealing system 3 is equipped on the right side of cavity, and the inner surface contact of holding system 2 and sealing system 3 has pipeline 4.Its
Working principle are as follows: turning nut makes fastening bolt 19 that rotary flange 11 be pushed to move axially, and the axial movement of rotary flange 11 pushes
22 radial contraction of hold-fast ring, 22 radial contraction of hold-fast ring and then holding pipeline 4;Puller bolt 31 is turned, puller bolt 31 pushes
Shift(ing) ring 33 is axial, the axial movement of shift(ing) ring 33 and then compresses seal, carries out after sealing ring compressive deformation and then to pipeline 4 close
Envelope;The size of bolt pretightening is tightened in adjustment, thus it is possible to vary the size of 22 enclasping force of hold-fast ring adjusts 31 swinging radius of puller bolt
From size, thus it is possible to vary the size of sealing force, and the size of the size of enclasping force and sealing force relatively independent can be adjusted.
Referring to Fig. 4~Fig. 7, holding system 2 tightly includes rotary flange 11 and mounting flange 12, holds system 2 tightly for holding system tightly
System 2 and sealing system 3, and the size for adjusting enclasping force and sealing force.Rotary flange 11 is for sealing 12 end of mounting flange
Face, and axial motive force is provided for hold-fast ring 22.Rotary flange 11 is in hollow ladder shaft-like, and big axis left side design has uniformly distributed
Regular hexagon blind hole, regular hexagon blind hole are used for the reaction torque of bearing bolt when tools for bolts ' pretension;It is equipped in regular hexagon blind hole
The bolt head of fastening bolt 19, the floor design of regular hexagon blind hole have circular through hole, and fastening bolt 19 makes across circular through hole
Rotary flange 11 forms bolt fastening with mounting flange 12 and connects.The inside design of regular hexagon blind hole has uniformly distributed small through hole
17, small through hole 17 is for installing puller bolt 31;There is the polished rod of puller bolt 31 to pass through in small through hole 17;17 end face of small through hole
Circumferential design has ring-shaped groove 18, sealing ring is equipped in ring-shaped groove 18, sealing ring is contacted with gasket 32, and gasket 32 is by holding out against
Bolt 31 is pressed in 11 left side of rotary flange, and then prevents gap location of the seawater between puller bolt 31 and rotary flange 11
Into inside housing system 1.The big axis right side design of rotary flange 11 has a small multi-diameter shaft 13, the outer surface of small multi-diameter shaft 13 with
The inner surface contact of cylinder 21 is held tightly, thus load when being bent present apparatus carrying pipeline 4;On the right side of the inner surface of small multi-diameter shaft 13
Design has bellmouth, the appearance face contact of taper internal surface of hole and hold-fast ring 22, due to the effect of bellmouth, when rotary flange 11
It can make 22 radial contraction of hold-fast ring when axial movement, to realize that hold-fast ring 22 holds the purpose of pipeline 4 tightly.Rotary flange 11 it is big
Axis right end face contact has mounting flange 12.
Referring to Fig. 8, mounting flange 12 is for installing holding system 2 and sealing system 3.Mounting flange 12 is in hollow cylinder
The left side design of shape, mounting flange 12 has annular groove, sealing ring is equipped in annular groove, sealing ring is for preventing seawater from shifting
Gap location between dynamic flange 11 and mounting flange 12 enters inside housing system 1.The middle part design of mounting flange 12 has outward
The step of stretching, the interior design of step have uniformly distributed through-hole, and through-hole passes through for fastening bolt 19 and make mounting flange 12 and movement
Flange 11 forms bolt fastening connection.The right side design of mounting flange 12 has ring flange, and the design of flange side surface has for connecting
Connect the through-hole of prefabricated flange pipe 5.The inner surface design of mounting flange 12 has the big stepped hole 14 of meter, middle stepped hole 15 and small ladder
Hole 16, big stepped hole 14 is for installing holding system 2, and middle stepped hole 15 is for installing sealing system 3, and small stepped hole 16 is for pacifying
Fill rubber sheet gasket 34.
Referring to Fig. 9~Figure 10, holding system 2 tightly includes holding cylinder 21 and hold-fast ring 22 tightly;Holding system 2 is used to hold pipeline 4 tightly,
To prevent housing system 1 arbitrarily mobile.Cylinder 21 is held tightly for installing hold-fast ring 22, and makes 22 radial contraction of hold-fast ring to embrace
Tight pipeline 4.Holding cylinder 21 is cylindrical, and the left side design for holding cylinder 21 tightly has long through-hole 23, and long through-hole 23 is held out against for installing
Bolt 31;There is puller bolt 31 to pass through in long through-hole 23, the right side design of long through-hole 23 has threaded hole, the internal screw thread of threaded hole
It is mutually twisted with the external screw thread of puller bolt 31, so that puller bolt 31 be made to be threadedly coupled with the formation of cylinder 21 is held tightly, is pushed up when turning
When tight bolt 31, puller bolt 31, which enters to stretch out, holds cylinder 21 tightly, so that puller bolt 31 be made to hold out against shift(ing) ring 33, and with holding out against
The distance that bolt 31 stretches out is different, so that it may obtain different sealing power.The left side for holding cylinder 21 tightly is contacted with rotary flange 11, right
End face and mounting flange 12, and then limit the axial movement for holding cylinder 21 tightly.Holding the design of 21 inner surface of cylinder tightly has stepped hole, rank
The right side design in terraced hole has conical bore, and the outer surface of the inner surface and hold-fast ring 22 of conical bore contacts with each other, and works as rotary flange
11 when pushing hold-fast rings 22 to move axially, and the hold-fast ring 22 on right side is since radial contraction can occur for the effect of conical bore, to make
Hold-fast ring 22 is radial to hold pipeline 4 tightly.
1~Figure 13 referring to Fig.1, for holding pipeline 4 tightly after 22 deformation retract of hold-fast ring;Hold-fast ring 22 is to be provided with rectangular notch
24 annulus, and the outer diameter of annulus is greater than the diameter of 11 bellmouth of rotary flange and holds the diameter of 21 conical bore of cylinder tightly, works as movement
When flange 11 pushes 22 axial displacement of hold-fast ring, hold-fast ring 22 can deform under the action of the conical surface and notch 24, make to hold tightly
The internal-and external diameter of ring 22 reduces to hold pipeline 4 tightly.The cross section of annulus is right angled isosceles triangle, and the inner surface for holding diameter ring tightly is set
In respect of axial rectangle groove 25 and circumferential triangular groove 26, rectangle groove and triangular groove are for increasing hold-fast ring 22
To the holding active force of pipeline 4.
Referring to Fig.1 4~15, sealing system 3 includes puller bolt 31, gasket 32, shift(ing) ring 33 and rubber seal 34;It is close
Envelope system 3 is for the gap between sealing pipeline 4 and device, to prevent oil gas from revealing, in addition, sealing system 3 can also be used in
Adjust the size of sealing force.Gasket 32 is installed between 11 left side of puller bolt 31 and rotary flange, the right side of gasket 32
Compression has sealing ring, and sealing ring is used to prevent extraneous or between puller bolt 31 and rotary flange 11 gap location from entering shell
Inside system system 1.Puller bolt 31 has held out against shifting after passing through the small through hole 17 of rotary flange 11 and the long through-hole 23 of holding cylinder 21
Rotating ring 33, adjustment puller bolt 31, which stretches out, holds 21 distance of cylinder, the sealing force of adjustable sealing ring tightly.Shift(ing) ring 33 is in annulus
Shape, the right side of shift(ing) ring 33, which is circumferentially designed, circular groove, and toroidal cavity is for installing sealing ring;The right side of sealing ring
Side is contacted with 15 end face of middle stepped hole of mounting flange 12, and then forms second sealing.Rubber sheet gasket 34 is installed on 4 end of pipeline
In gap between face and the small stepped hole 16 of mounting flange 12, and then form first of sealing.
Referring to Fig.1 6, compared with prior art, the present invention can independently adjust the radial enclasping force and sealing force of pipeline 4
Section, and 4 Fast Installation flange of submarine pipeline that can be underwater realize the quick reparation connection of submarine pipeline 4, and then short submarine pipeline
4 repairing efficiencies reduce labor intensity, and reduce the overall cost of marine oil and gas conveying.
Claims (1)
1. a kind of sealing force adjustable water lower flange is held tightly system (2) and sealing system (3) is constituted by housing system (1),
Feature are as follows: the rotary flange (11) and mounting flange (12) of housing system (1) form cavity, and holding system is equipped on the left of cavity
It unites (2), is equipped with sealing system (3) on the right side of cavity, the inner surface contact for holding system (2) and sealing system (3) tightly has pipeline
(4);
The housing system (1) includes rotary flange (11) and mounting flange (12);Rotary flange (11) is in hollow ladder shaft-like,
The big axis left side design of rotary flange (11) has uniformly distributed regular hexagon blind hole, is equipped with fastening bolt in regular hexagon blind hole
(19) bolt head, the floor design of regular hexagon blind hole have circular through hole, and fastening bolt (19), which passes through circular through hole, to be made to move
Flange (11) forms bolt fastening with mounting flange (12) and connects;The inside design of regular hexagon blind hole has uniformly distributed small through hole
(17), the polished rod of puller bolt (31) passes through in small through hole (17);The circumferential design of small through hole (17) end face has ring-shaped groove
(18), the first sealing ring is installed in ring-shaped groove (18), the first sealing ring is contacted with gasket (32), and gasket (32) is by holding out against spiral shell
Bolt (31) is pressed in rotary flange (11) left side;The big axis right side design of rotary flange (11) has small multi-diameter shaft (13), small
The outer surface of multi-diameter shaft (13) is contacted with the inner surface for holding cylinder (21) tightly;Design has taper on the right side of the inner surface of small multi-diameter shaft (13)
Hole, the appearance face contact of taper internal surface of hole and hold-fast ring (22);The big axis right end face contact of rotary flange (11) has fixation
Blue (12);Mounting flange (12) is in hollow cylindrical, and the left side design of mounting flange (12) has annular groove, installation in annular groove
There is the second sealing ring;The middle part design of mounting flange (12) has outwardly directed step, and design has uniformly distributed first logical in step
Hole, fastening bolt (19), which passes through first through hole, connect mounting flange (12) with rotary flange (11) formation bolt fastening;It is fixed
The right side design of flange (12) has ring flange, and the design of flange side surface has second for connecting prefabricated flange pipe (5) to lead to
Hole;The inner surface design of mounting flange (12) has big stepped hole (14), middle stepped hole (15) and small stepped hole (16), big stepped hole
(14) it is equipped with holding system (2) in, is equipped with sealing system (3) in middle stepped hole (15), is equipped in small stepped hole (16)
Rubber sheet gasket (34);
The holding system (2) includes holding cylinder (21) and hold-fast ring (22) tightly;Holding cylinder (21) is cylindrical, holds cylinder (21) tightly
Left side design has long through-hole (23), has puller bolt (31) to pass through in long through-hole (23), the right side design of long through-hole (23)
There is threaded hole, the external screw thread of the internal screw thread and puller bolt (31) of threaded hole is mutually twisted;Hold left side and the shifting of cylinder (21) tightly
Dynamic flange (11) contact is held cylinder (21) right side tightly and is contacted with mounting flange (12) interior step;Hold the design of cylinder (21) inner surface tightly
There is stepped hole, the right side design of stepped hole has conical bore, the outer surface phase mutual connection of the inner surface and hold-fast ring (22) of conical bore
Touching;Hold-fast ring (22) is the annulus for being provided with rectangular notch (24), and the cross section of annulus is right angled isosceles triangle, hold-fast ring (22)
Inner surface design have axial rectangle groove (25) and circumferential triangular groove (26);
The sealing system (3) includes puller bolt (31), gasket (32), shift(ing) ring (33) and rubber sheet gasket (34);The pad
Piece (32) is installed between puller bolt (31) and rotary flange (11) left side, the right side of gasket (32) compress have it is first close
Seal;Puller bolt (31) has been held out against after passing through the small through hole (17) of rotary flange (11) and the long through-hole (23) of holding cylinder (21)
Shift(ing) ring (33);Shift(ing) ring (33) is annular in shape, and the right side of shift(ing) ring (33), which is circumferentially designed, circular groove, arc-shaped
Third sealing ring is installed, the right side of third sealing ring is contacted with middle stepped hole (15) end face of mounting flange (12) in groove;
Rubber sheet gasket (34) is installed in the gap between pipeline (4) end face and mounting flange (12) small stepped hole (16).
Priority Applications (1)
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CN201711225935.XA CN107701834B (en) | 2017-11-29 | 2017-11-29 | A kind of sealing force adjustable water lower flange |
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CN201711225935.XA CN107701834B (en) | 2017-11-29 | 2017-11-29 | A kind of sealing force adjustable water lower flange |
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CN107701834A CN107701834A (en) | 2018-02-16 |
CN107701834B true CN107701834B (en) | 2019-07-12 |
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CN201711225935.XA Expired - Fee Related CN107701834B (en) | 2017-11-29 | 2017-11-29 | A kind of sealing force adjustable water lower flange |
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CN108626513B (en) * | 2018-03-28 | 2023-11-24 | 国投新疆罗布泊钾盐有限责任公司 | Quick connector for glass fibre reinforced plastic pipeline |
CN108533852B (en) * | 2018-04-20 | 2019-10-25 | 绍兴市亚索新能源科技有限公司 | A kind of petrochemical industry pipeline connecting device |
CN108561658B (en) * | 2018-04-20 | 2020-04-17 | 邹海娟 | Oil conveying method |
CN110553104A (en) * | 2019-08-22 | 2019-12-10 | 李龙明 | Joint leakage-proof pipe |
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