CN208587113U - A kind of jointing for salt well protective casing - Google Patents

Abstract

The utility model discloses a kind of jointings for salt well protective casing, including level-one outer tube and second level outer tube, fixing sleeve is equipped with level-one terminal pad and second level terminal pad respectively on level-one outer tube and second level outer tube, level-one outer tube offers limiting slot on one end, and seal gasket has been correspondingly connected on one end of second level outer tube and limiting slot, fixing sleeve is equipped with inner tube in level-one outer tube and second level outer tube, and level-one outer tube it is corresponding on the mutually separate one end of second level outer tube it is equidistantly recessed there are three thread groove.The utility model is fixed between level-one outer tube and second level outer tube using clutch disk progress bolt by making, and effectively promotes connector connective stability；By being connected together for gasket and limiting slot, facilitates the tightness for promoting connector, salt well is effectively reduced to the corrosion rate of pipeline；By convenient dismounting connection component on inner pipe, wear protection is carried out to internal lining pipe using limit casing, the service life time limit of internal lining pipe can be extended.

Description

A kind of jointing for salt well protective casing

Technical field

The utility model relates to salt well technical field of anticorrosion more particularly to a kind of connection for salt well protective casing to connect Head.

Background technique

With salt well development technique and horizontal continuous improvement, Underground Dissolved Cavity constantly expands, and salt well returns halogen concentration and constantly rises Height is also easy to produce the stifled well phenomenon of crystallization, in order to prevent the problem, it is necessary to take with the reduction for returning out surface temperature and pressure Return the center sparge pipe added in halogen well protective casing and reduce concentration.Because salt well is to tube inner wall seriously corroded, while because burning It might have a small amount of free chlorine in alkali device abnormality, so need frequently to replace pipeline, it otherwise can be because of corrosion Cause strength reduction, screwed connection variation etc. that it is made to fall off and cause down-hole accident.

In order to reinforce corrosion resistance, anticorrosive guarantor is carried out to salt well conduit so adopting internal lining pipe made of polythene material Shield, can effectively extend the service life of pipeline, but the prior art is to internal lining pipe when carrying out being laid with installation, because connector lacks It is stably connected with, so that pipeline is easy to fall off, and because of metallic conduit junction structure than sharp, it is easy that internal lining pipe is caused seriously Abrasion, so that the outer tube to internal lining pipe has some impact on.

Utility model content

Purpose of the utility model is to solve lack to stablize when salt well corrosion-proof pipe line in the prior art is laid with and installs to connect It connects and problem that attrition is serious, and a kind of jointing for salt well protective casing proposed.

To achieve the goals above, the utility model adopts the technical scheme that

A kind of jointing for salt well protective casing, including level-one outer tube and second level outer tube, the level-one outer tube with Fixing sleeve is distinguished on second level outer tube and is equipped with level-one terminal pad and second level terminal pad, and the level-one outer tube offers limit on one end Slot, and seal gasket has been correspondingly connected on one end of second level outer tube and limiting slot, the level-one outer tube with it is solid in second level outer tube Surely it is arranged with inner tube, and level-one outer tube is corresponding on the mutually separate one end of second level outer tube equidistant recessed there are three thread groove, and two Card slot is symmetrically recessed on the mutually separate one end of root inner tube, two said inner tubes are equipped with connection component in mutually separate one end, Erosion resistant coating is symmetrically offered in the level-one outer tube and second level outer tube.

Preferably, the connection component includes with flowering structure: sliding is arranged in the mutually separate one end of two said inner tubes There is a connecting tube, and connecting tube is far from being welded with limit casing on one end of inner tube, and equidistantly offers three companies on limit casing Hole is connect, is symmetrically opened up in the limit casing there are two spoon bar, and symmetrically opens up that there are two through-holes in spoon bar, described in two Through-hole internal clearance is combined with pulling plug, and two pulling plugs are embedded in spoon bar and are welded with limited block on one end jointly.

Preferably, the connection tube opening outer diameter is less than inner tube opening inside diameter, and limit casing opening inside diameter is greater than inner tube Be open outer diameter, and the limited block is movably fastened in card slot.

Preferably, in the level-one terminal pad and second level terminal pad respectively circumference equidistantly open up there are three step of threads hole with Three second level threaded holes, and three step of threads holes are respectively corresponded with three second level threaded holes, the step of threads hole and second level Threaded hole internal screw thread is connected with expansion bolt.

Preferably, the seal gasket is movably fastened in limiting slot.

Preferably, three thread grooves are corresponding with three connecting holes respectively, and screw thread between thread groove and connecting hole It is connected with hexagon socket head cap screw.

Compared with prior art, the utility model has following advantages:

1, the utility model by opened up respectively on level-one outer tube one end corresponding with second level outer tube limiting slot with it is close Packing can promote the tightness that level-one outer tube is connect with second level outer tube, the leakage during avoiding substance from transporting；Outside by level-one Bolt when pipe offsets with second level outer tube between level-one terminal pad and second level terminal pad is fixedly connected, and effectively promotes the two connection Stability can avoid gasket and be detached from out of limiting slot.

2, the utility model is engaged in card slot solid by flexibly dismounting connection component in inner tube both ends by limited block It is fixed, limit casing is connected and fixed to realize；Using the limit casing made of polyethylene nano material to anti-corrosion The internal lining pipe of effect is protected, and is avoided internal lining pipe from generating with inner tube and is directly contacted, so that reducing internal lining pipe is laid with installation process In caused by attrition, and help to reduce frictional resistance when internal lining pipe movement, so that it is anti-to carry out appearance to internal lining pipe Shield.

In conclusion the utility model is solid using clutch disk progress bolt between level-one outer tube and second level outer tube by making It is fixed, effectively promote connector connective stability；By being connected together for gasket and limiting slot, help to promote the tight of connector Salt well is effectively reduced to the corrosion rate of pipeline in close property；By convenient dismounting connection component on inner pipe, limit casing pair is utilized Internal lining pipe carries out wear protection, can extend the service life time limit of internal lining pipe.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of jointing for salt well protective casing structural schematic diagram；

Fig. 2 be the utility model proposes a kind of jointing for salt well protective casing second level outer tube part structure Stereoscopic schematic diagram；

Fig. 3 be the utility model proposes a kind of jointing for salt well protective casing connecting component structure it is three-dimensional Schematic diagram；

Fig. 4 be the utility model proposes a kind of jointing for salt well protective casing limit casing structure section view Schematic diagram；

Fig. 5 be the utility model proposes a kind of jointing for salt well protective casing schematic cross-sectional view.

In figure: 1 level-one outer tube, 2 second level outer tubes, 3 level-one terminal pads, 4 step of threads holes, 5 second level terminal pads, 6 second level spiral shells Pit, 7 limiting slots, 8 seal gaskets, 9 inner tubes, 10 thread grooves, 11 card slots, 12 connecting tubes, 13 limit casings, 14 connecting holes, 15 Spoon bar, 16 limited blocks, 17 pulling plugs, 18 erosion resistant coatings.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

Referring to Fig.1-5, a kind of jointing for salt well protective casing, including level-one outer tube 1 and second level outer tube 2, one Fixing sleeve is equipped with level-one terminal pad 3 and second level terminal pad 5 respectively on grade outer tube 1 and second level outer tube 2, and level-one outer tube is opened on 1 one end Equipped with limiting slot 7, limiting slot 7 uses ring structure, and has been correspondingly connected with sealant on one end of second level outer tube 2 and limiting slot 7 Pad 8, gasket 8 use rubber material, and leakproofness is preferable, and fixing sleeve is equipped with inner tube 9 in level-one outer tube 1 and second level outer tube 2, and Level-one outer tube 1 it is corresponding on the mutually separate one end of second level outer tube 2 it is equidistant it is recessed there are three thread grooves 10, and two inner tubes 9 are mutually remote From one end on be symmetrically recessed with card slot 11,11 depth of card slot and 16 equal, mutually separate one end of two inner tubes 9 of height of limited block It is inside equipped with connection component, erosion resistant coating 18 is symmetrically offered in level-one outer tube 1 and second level outer tube 2, is filled in erosion resistant coating 18 anti- Rotten glue.

It should be noted that the connector overall structure uses stainless steel material, and on stainless steel material outer surface uniformly It is coated with antiseptic oil paint layer, can effectively extend the service life time limit of connector.

Connection component includes with flowering structure: equal sliding sleeve is equipped with connecting tube 12 in the mutually separate one end of two inner tubes 9, and even Adapter tube 12 is welded with limit casing 13 on one end far from inner tube 9, limit casing 13 uses polythene material, can reduce to liner The abrasion of pipe, and three connecting holes 14 are equidistantly offered on limit casing 13, symmetrically opens up that there are two curved in limit casing 13 Slot 15, and symmetrically opened up in spoon bar 15 there are two through-hole, two through-hole internal clearances are combined with pulling plug 17, and in two pulling plugs 17 It is welded with limited block 16 jointly on one end in spoon bar 15, limited block 16 uses and the consistent structure of card slot 11.

Connecting tube 12 is open outer diameter less than 9 opening inside diameter of inner tube, and 13 opening inside diameter of limit casing is greater than inner tube 9 and is open outside Diameter, limited block 16 are movably fastened in card slot 11, and circumference equidistantly offers three respectively in level-one terminal pad 3 and second level terminal pad 5 A step of threads hole 4 and three second level threaded holes 6, and three step of threads holes 4 are respectively corresponded with three second level threaded holes 6, one Grade threaded hole 4 and 6 internal screw thread of second level threaded hole are connected with expansion bolt, effectively promote degree of being completely embedded.

Seal gasket 8 is movably fastened in limiting slot 7, and three thread grooves 10 are corresponding with three connecting holes 14 respectively, and Be threaded with hexagon socket head cap screw between thread groove 10 and connecting hole 14, can prevent internal lining pipe and bolt upper end be in contact to Internal lining pipe is protected.

The utility model can illustrate its principle of work and power by following operating procedure:

Step 1: offseting level-one outer tube 1 is corresponding with the opposite one end of second level outer tube 2, and seal gasket 8 is made to be sticked in limit In the slot 7 of position, and respectively correspond step of threads hole 4 with second level threaded hole 6, by step of threads hole 4 and second level threaded hole 6 Expansion bolt is installed, to realize being stably connected with for level-one outer tube 1 and second level outer tube 2.

Step 2: pulling up pulling plug 17 by manpower, limited block 16 is driven to move into spoon bar 15 using pulling plug 17, Two connecting tubes 12 are distinguished sliding sleeve again to be set in two inner tubes 9, when limit casing 13 is respectively and outside level-one outer tube 1 and second level When pipe 2 offsets, by fine rotation limit casing 12, keep limited block 16 corresponding with card slot 11, at the same time, three connecting holes 14 is corresponding with three thread grooves 10 respectively.

Step 4: being sticked in limited block 16 completely in card slot 11 by pressing down on pulling plug 17, and use interior hexagonal spiral shell Silk knife carries out hexagon socket head cap screw in thread groove 10 to tighten fixation, to realize the installation of connection component.

Laying installation is carried out to internal lining pipe again: at the construction field (site) by the shipment of internal lining pipe roller, supporting rolling with special stand Cylinder installs dragger to facilitate rotation release internal lining pipe, in internal lining pipe end, and size reducing machine is installed in front end, the internal lining pipe warp on roller Cross after size reducing machine compression diameter reduces, the wirerope through dragger pulls in pipeline, pull in the internal lining pipe of pipeline by air or Water pressurized expansion is tightly attached on steel pipe inner wall, and internal lining pipe flanging seal is formed interior erosion resistant coating, each section of installation liner by pipe ends Pipeline when needing to connect, pipeline is connect and have been formed by steel/modeling liner pipe weld connection weld with each conduit fittings The inside lining anti-corrosive conveyance conduit of whole continuous corrosion-free leak source.

It should be noted that limit casing 13 is to interior made of polythene material when drawing to internal lining pipe Bushing pipe carries out package protection, avoids internal lining pipe from generating with inner tube 9 and contacts, to carry out wear protection, internal lining pipe peace to internal lining pipe After dress, by disassembling connection component, so that limit casing 13 be made to separate respectively with level-one outer tube 1 and second level outer tube 2.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (6)

1. a kind of jointing for salt well protective casing, including level-one outer tube (1) and second level outer tube (2), which is characterized in that Fixing sleeve is equipped with level-one terminal pad (3) and second level terminal pad (5) respectively on the level-one outer tube (1) and second level outer tube (2), described It offers limiting slot (7), and has been correspondingly connected on second level outer tube (2) and one end of limiting slot (7) close on level-one outer tube (1) one end Potting pad (8), the level-one outer tube (1) is equipped with inner tube (9) with fixing sleeve equal in second level outer tube (2), and level-one outer tube (1) and two It is corresponding equidistant recessed there are three thread groove (10) on grade outer tube (2) mutually separate one end, and one end that two inner tubes (9) are mutually separate On be symmetrically recessed with card slot (11), two said inner tubes (9) are equipped with connection component, the level-one outer tube in mutually separate one end (1) and erosion resistant coating (18) are symmetrically offered in second level outer tube (2).

2. a kind of jointing for salt well protective casing according to claim 1, which is characterized in that the connection group Part includes with flowering structure: equal sliding sleeve is equipped with connecting tube (12) in the mutually separate one end of two said inner tubes (9), and connecting tube (12) it is welded with limit casing (13) on one end far from inner tube (9), and equidistantly offers three connections on limit casing (13) Hole (14), symmetrically opens up that there are two spoon bar (15) in the limit casing (13), and symmetrically offers two in spoon bar (15) A through-hole, two through-hole internal clearances are combined with pulling plug (17), and two pulling plugs (17) are embedded in one end in spoon bar (15) On be welded with limited block (16) jointly.

3. a kind of jointing for salt well protective casing according to claim 2, which is characterized in that the connecting tube (12) opening outer diameter is less than inner tube (9) opening inside diameter, and limit casing (13) opening inside diameter is greater than inner tube (9) opening outer diameter, institute Limited block (16) is stated to be movably fastened in card slot (11).

4. a kind of jointing for salt well protective casing according to claim 1, which is characterized in that a cascade It connects on disk (3) and second level terminal pad (5) circumference respectively and equidistantly opens up that there are three step of threads hole (4) and three second level threaded holes (6), and three step of threads holes (4) respectively correspond with three second level threaded holes (6), the step of threads hole (4) and second level spiral shell Pit (6) internal screw thread is connected with expansion bolt.

5. a kind of jointing for salt well protective casing according to claim 1, which is characterized in that the sealant Pad (8) is movably fastened in limiting slot (7).

6. a kind of jointing for salt well protective casing according to claim 2, which is characterized in that three spiral shells Groove (10) is corresponding with three connecting hole (14) respectively, and interior six are threaded between thread groove (10) and connecting hole (14) Corner bolt.