A kind of pipeline connects and sealing device
Technical field
The present invention relates to a kind of pipeline to connect and sealing device, be particularly well-suited to submarine pipeline local pipeline section and change and maintenance.
Background technology
Sea-bottom oil-gas feed-line is after having laid and having used a period of time, impact due to factors such as burn into external force, defect or damage may occur at local pipeline section, defective or damage pipeline section need to be changed, mostly what adopt at present is welding waterborne or welds in dry work chamber, it is suitable for shallow water area, deepwater regions is then difficult to, the present invention adopts mechanical type type of attachment, under the help of construction equipment and robot or diver under water, pipeline can be keeped in repair, not by the restriction of the depth of water.
Summary of the invention
It is an object of the invention to the defect existed for prior art, it is provided that a kind of pipeline connects and sealing device, the pipeline section to realize submerged pipeline is changed and maintenance.This device have easily install under water, do not limited by the depth of water, fixing reliable, seal pressure high, be particularly well-suited to submerged pipeline underwater maintenance.
The pipeline of the present invention connects and sealing device, mainly by connecting tube 1, pushing wedge 3, formed by pressure wedge 4, half shape pressure ring I 6, tube fixed mass 9, solid block 10, wedge 11, guide ring 12, extension spring 13, pushing block 15, end cap 16, sealing clamp 19, pushing block screw 20, position-limiting drum 21, head bolts 24, junk ring bolt 26 and half shape pressure ring II 27, wherein, connecting tube 1, tube fixed mass 9, end cap 16, position-limiting drum 21 overlap and are sleeved on former pipeline 23 outside successively;Connecting tube 1 right-hand member outer face is provided with location annular projection, coordinates with tube fixed mass 9 left side, and right-hand member inner face has been arranged symmetrically with by pressure wedge 4;Tube fixed mass 9 right side is provided with annular projection, is evenly equipped with the screw hole matched with pushing block screw 20 and head bolts 24 on the end face of annular projection, and annular projection outer round surface coordinates with end cap 16, and internal circular surfaces coordinates with guide ring 12;Guide ring is fixed on tube fixed mass 9, and endoporus is evenly arranged the gathering sill and inclined-plane that coordinate with wedge 11;Position-limiting drum 21 two ends coordinate with tube fixed mass 9 and end cap 16 respectively and position, and are along the circumferential direction uniformly provided with the rectangular opening coordinated with solid block 10;Being evenly arranged the hole matched with pushing block 15 and match with head bolts 24 on end cap 16, outer round surface arranges the hole matched with sealing screw 25;One end that pushing block 15 coordinates with end cap 16 is cylinder, and other end end face contacts with wedge 11, and side coordinates with the gathering sill two sides on guide ring 12;Half shape pressure ring II 27 is provided with the guide plate matched with half shape pressure ring I 6, being connected by junk ring bolt 26, set identical groove in half shape pressure ring II 27 and half shape pressure ring I 6, the one side of groove coordinates with tube fixed mass 9, another side is respectively fixed with pushing wedge 3, and coordinates with by pressure wedge 3.
Such scheme also includes:
Gu block 10 two sides are provided with extension spring 13, Gu the face that block 10 contacts with former pipeline 23 is cambered surface, diameter is identical with former pipeline 23 external diameter, cambered surface has projection, the face contacted with wedge 11 is also for circular arc, diameter is former pipeline 23 external diameter radial thickness plus solid block 10, Gu block 10 material hardness is more than former pipeline 23.
Hanging spring 13 is elastic circular ring, through solid block 10 body, solid block 10 is attached to former pipeline 23 outer surface.
Connecting tube 1 and tube fixed mass 9 endoporus endface position place arrange primary seal circle 5;Primary seal circle 5 is metal o-ring.
Sealing clamp 19 is provided with sealing ring II 17 and the seal groove coordinated with the face of pushing block 15 end face and end cap 16 end contact;Connecting tube 1 left end arranges flange, and endoporus is provided with seal groove and coordinates with auxiliary seal ring I 2;Tube fixed mass 9 left side is provided with and seals the seal groove coordinated and end sealing ring I 7 with connecting tube 1, and endoporus is provided with seal groove and coordinates with auxiliary seal ring II 8;End cap 16 is respectively equipped with and seals sealing ring I 14, sealing ring II 17 and the end cap seal circle 22 and seal groove coordinated with tube fixed mass 9, pushing block 15 and former body 23.
End cap 16 is additionally provided with steam vent and sealing screw 25.
The effect of invention: the present invention squeezes pressing fixed blocks by wedge, makes the projection on solid block intrados be pressed into former duct wall, it is possible to make connecting device be connected reliably with former pipeline;Primary seal circle is extruded so that it is shape on request and position deformation realize sealing reliably by the junk ring bolt between half shape pressure ring I and half shape pressure ring II;Have that adaptability is high, easy and simple to handle, underwater construction convenient, fixing with seal reliably, not by features such as operating water depth are limited, it is achieved that submarine pipeline quickly repair under water needed for the mechanical connection of replacing pipeline section.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that a kind of pipeline connects with sealing device;
Fig. 2 is the side view that a kind of pipeline connects with sealing device;
Fig. 3 is the matching relationship schematic enlarged-scale view of solid block, wedge, guide ring and extension spring.
In figure:
1, connecting tube 2, auxiliary seal ring I 3, push wedge
4, by pressure wedge 5, primary seal circle 6, half shape pressure ring I
7, end sealing ring I 8, auxiliary seal ring II 9, tube fixed mass
10, solid block 11, wedge 12, guide ring
13, spring 14, sealing ring I 15, pushing block are hung
16, end cap 17, sealing ring II 18, end sealing ring II
19, sealing clamp 20, pushing block screw 21, position-limiting drum
22, end cap seal circle 23, former pipeline 24, head bolts
25, sealing screw 26, junk ring bolt 27, half shape pressure ring II.
Detailed description of the invention
In conjunction with Figure of description 1, the invention will be further described for accompanying drawing 2:
A kind of pipeline connects with sealing device by connecting tube 1, auxiliary seal ring I 2, push wedge 3, by pressure wedge 4, primary seal circle 5, half shape pressure ring I 6, end sealing ring I 7, auxiliary seal ring II 8, tube fixed mass 9, Gu block 10, wedge 11, guide ring 12, hang spring 13, sealing ring I 14, pushing block 15, end cap 16, sealing ring II 17, end sealing ring II 18, sealing clamp 19, pushing block screw 20, position-limiting drum 21, end cap seal circle 22, former pipeline 23, head bolts 24, sealing screw 25, junk ring bolt 26, half shape pressure ring II 27 composition.
A kind of pipeline connects and the effect of sealing device is through adopting the mode of machinery carry out fixing reliably and seal with former pipeline, thus the pipeline section realizing being repaired pipeline is changed.Concrete operation process is: connecting tube 1, tube fixed mass 9, end cap 16, position-limiting drum 21 all coordinate with former pipeline 23, are provided with primary seal circle 5 between connecting tube 1 and tube fixed mass 9;Connecting tube 1 right-hand member outer face, is provided with location annular projection, coordinates with tube fixed mass 9 left side annular groove and positions, and connecting tube 1 right-hand member inner face has been arranged symmetrically with by pressure wedge 4, and connecting tube 1 left end can arrange flange or other modes are connected with the pipeline section that will newly change;Tube fixed mass 9 left side coordinates with connecting tube 1, and right side is provided with annular projection, is evenly equipped with the screw hole matched with pushing block screw 20 and head bolts 24 on the end face of annular projection;Guide ring 12 is mounted and fixed on the inner headed face of tube fixed mass 9 annular projection, to wedge 11 guiding and squeezing action;Position-limiting drum 21 is arranged between tube fixed mass 9 and end cap 16 and is enclosed within former pipeline 23, along the circumferential direction having the rectangular opening matched with solid block 10, for the position of fixing solid block 10, hanging spring 13 is elastic circular ring, through solid block 10 body, for solid block 10 being attached to former pipeline 23 outer surface.End cap 16 is enclosed within tube fixed mass 9 annular projection outer round surface, and end cap 16 end face is evenly arranged the hole matched with pushing block 15 and match with head bolts 24;Half shape pressure ring II 27 is provided with the guide plate matched with half shape pressure ring I 6, being connected by junk ring bolt 26, set identical groove in half shape pressure ring II 27 and half shape pressure ring I 6, the one side of groove coordinates with tube fixed mass 9, another side is respectively fixed with pushing wedge 3, and coordinates with by pressure wedge 4;Pushing block 15 can be made to promote wedge 11 by screwing pushing block screw 20, so crowded pressing fixed blocks 10 realize that pipeline connects with sealing device and former pipeline 23 fixing;Make the pushing wedge 3 on half shape pressure ring II 27 and half shape pressure ring I 6 extrude by pressure wedge 4 by screwing junk ring bolt 26, and then make connecting tube 1, tube fixed mass 9 and former pipeline 23 combined effect make primary seal circle 5 be deformed realizing sealing.Screwing pushing block screw 20 and junk ring bolt 26 respectively fully to discharge after gas and liquid screwing hermetic screw 25 again.The left end of connecting tube 1 can pass through flange and be connected with replacing pipeline section under water, it is possible to connect above by other modes at the water surface.
Additionally, solid block 10 two sides are provided with extension spring 13, Gu the face that block 10 contacts with former pipeline 23 is cambered surface, diameter is identical with former outer diameter tube, and cambered surface has projection, and the face contacted with wedge 11 is also for circular arc, diameter is that former outer diameter tube adds solid block 10 radial thickness, Gu block of material hardness is more than former pipeline.
One end that pushing block 15 coordinates with end cap 16 is cylinder, and other end end face contacts with wedge 11, and side coordinates with the gathering sill two sides on guide ring 12.
Sealing clamp 19 is provided with, with the face of pushing block 15 end face and end cap 16 end contact, the seal groove coordinated with sealing ring II 17.