CN207945373U - A kind of first conduit sealing structure - Google Patents

Abstract

The utility model provides a kind of first conduit sealing structure, belongs to conduit interconnection technique field.First conduit sealing structure includes first flange and the first conduit, and the first conduit includes first end and second end, and the first conduit is set in first flange and second end stretches out first flange.This first conduit sealing structure will not keep sealing technique effect more preferable, avoid the generation of pipeline internal medium leakage and leakage accident to being caused stress at the sealing of pipeline.

Description

A kind of first conduit sealing structure

Technical field

The utility model is related to conduit interconnection technique fields, in particular to a kind of first conduit sealing structure.

Background technology

Long term distance conveys the anti-corrosion pipe of various media, and pipeline is connected by flanged joint technology, realizes and supplies Draining, gas, a variety of different medium conveyings of oil, are widely used in production and construction and the living needs of multi-field conglomerate.

Anti-corrosion pipe flanged joint nozzle must carry the equivalent pressure of tube body, and this pressure is sealed by silicone gasket (requiring be divided into low pressure, middle pressure, high pressure according to pipe laying flange technology), flanged joint nozzle pressure is close under external force Encapsulation technique has limitation, can cause media leaks and leakage accident.

Utility model content

The purpose of this utility model is to provide a kind of first conduit sealing structures, will not be to causing to press at the sealing of pipeline Power keeps sealing technique effect more preferable, avoids the generation of pipeline internal medium leakage and leakage accident.

The utility model is realized using following technical scheme：

A kind of first conduit sealing structure, including first flange and the first conduit, the first conduit include first end and second End, the first conduit is set in first flange and second end stretches out first flange.

Further, in the utility model preferred embodiment, above-mentioned first conduit is steel pipe, and the first conduit is welded in In first flange and second end stretches out first flange.

Further, in the utility model preferred embodiment, above-mentioned first flange includes for annular shape, including inner ring Face, inner ring surface and the welding of the first conduit and second end stretching inner ring surface.

Further, in the utility model preferred embodiment, the length of the stretching inner ring surface of above-mentioned second end is 5- 15mm。

Further, in the utility model preferred embodiment, above-mentioned first flange further includes in outer ring surface and connection The distance of the first side and second side of anchor ring and outer ring surface, first side and second side is 5-15mm.

Further, in the utility model preferred embodiment, multiple first through hole are provided in above-mentioned first flange, Each first through hole runs through first side and second side.

Further, in the utility model preferred embodiment, the weld of above-mentioned inner ring surface and the first conduit has Close to the first welding section of second end and far from the second welding section of second end.

Further, in the utility model preferred embodiment, above-mentioned second welding section is 60 ° of welding sections, the first weldering It is 30 ° of welding sections to meet area.

Further, in the utility model preferred embodiment, above-mentioned first conduit is coated with anticorrosion internal layer and anti-corrosion Lose outer layer.

Further, in the utility model preferred embodiment, above-mentioned first end is provided with the dynamic of connection actuating unit Power jointing.

The advantageous effect for the first conduit sealing structure that the preferred embodiment of the utility model provides is：First conduit is arranged It is wrong in first flange and second end stretching first flange, the end of the second end of the first conduit and the both ends of first flange It opens, makes to form no pressure sealing structure between the first conduit and first flange, it will not be to the end of the second end of the first conduit It causes stress, keeps sealing technique effect more preferable, avoid the generation of pipeline internal medium leakage and leakage accident, give full play to flange Connect the advantage with preferable intensity and compactness, the wide effect of suitable dimensions range.

Description of the drawings

It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also The scope of protection of the utility model is also belonged to obtain other relevant attached drawings according to these attached drawings.

Fig. 1 is the attachment structure schematic diagram for the conduit no pressure sealing structure that the utility model embodiment provides；

Fig. 2 is the attachment structure schematic diagram for the first conduit sealing structure that the utility model embodiment provides；

Fig. 3 is the enlarged drawing at III in Fig. 2；

Fig. 4 is the enlarged drawing at IV in Fig. 2；

Fig. 5 is the attachment structure schematic diagram for the second conduit sealing structure that the utility model embodiment provides.

Icon：100- conduit no pressure sealing structures；130- the first conduit sealing structures；The second conduits of 140- sealing knot Structure；200- first flanges；300- second flanges；The first conduits of 400-；The second conduits of 500-；110- gaskets；401- anticorrosions Internal layer；402- anticorrosion outer layers；410- first ends；420- second ends；120- be connected by power connectors；210- inner ring surfaces；Outside 220- Anchor ring；230- first sides；240- second sides；250- first through hole；The second welding sections 260-；The first welding sections 270-； 510- thirds end；The 4th ends 520-；310- inner surfaces；The outer surfaces 320-；The first joint faces of 330-；The second joint faces of 340-； The second through-holes of 350-；360- thirds welding section；370- Sealing shield rings；380- sealing rings.

Specific implementation mode

It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.Therefore, below to attached The detailed description of the embodiments of the present invention provided in figure is not intended to limit claimed the scope of the utility model, But it is merely representative of the selected embodiment of the utility model.Based on the embodiments of the present invention, ordinary skill people The every other embodiment that member is obtained without creative efforts belongs to the model of the utility model protection It encloses.

It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.

Embodiment

Fig. 1 is the attachment structure schematic diagram of conduit no pressure sealing structure 100 provided in this embodiment.Referring to Fig. 1, this In embodiment, conduit no pressure sealing structure 100 is used to seal the pipeline of two docking, causes to press at the sealing between pipeline Power keeps sealing technique effect more preferable, avoids the generation of media leaks and leakage accident in steel pipe.

Conduit no pressure sealing structure 100 includes the first conduit sealing structure 130 and the second conduit sealing structure 140, the One conduit sealing structure 130 includes the first conduit 400 and first flange 200, and the second conduit sealing structure 140 includes the second conduit 500 and second flange 300, the first conduit 400 and the docking of the second conduit 500, first flange 200 and second flange 300 are docked, the One flange 200 is sheathed on 400 outer and the first conduit 400 the end docked with the second conduit 500 of the first conduit and stretches out the first method Orchid 200, second flange 300 are sheathed on 500 outer and the second conduit 500 the end position docked with the first conduit 400 of the second conduit In in second flange 300.

At the docking of first conduit 400 and the second conduit 500 place's mistake is docked with first flange 200 and second flange 300 It opens, makes to constitute no pressure sealing structure between the first conduit 400 and the second conduit 500, second flange 300 directly may be used To dock the nozzle at place with the second conduit 500 to the first conduit 400 and the second conduit 500 docks place with the first conduit 400 Nozzle coats, and will not be caused stress to the end of the first conduit 400 and the end of the second conduit 500, make sealing technique effect more It is good, the generation of pipeline internal medium leakage and leakage accident is avoided, the connection for giving full play to flange has preferable intensity and compactness Advantage, the wide effect of suitable dimensions range.

Preferably, it is provided with gasket 110 at the docking of first flange 200 and second flange 300, keeps conduit no pressure close The sealing effect of seal structure 100 is more preferable, can play secondary seepage, leakage protective effect.

In the present embodiment, the material of the first conduit 400 and the second conduit 500 can not be limited, as long as can carry out This mode connects, such as：Steel pipe, plastic tube, iron pipe etc..Preferably, the first conduit 400 and the second conduit 500 are steel It is commonplace to realize that the different medium of water supply, gas supply and fuel feeding carries out delivery application as anti-corrosion pipe for pipe, steel pipe.And steel Connection between pipe and flange is even closer, easier for installation.

First conduit 400 is coated with anticorrosion internal layer 401 and anticorrosion outer layer 402, and the second conduit 500 is also coated in anticorrosion Layer 401 and anticorrosion outer layer 402.Keep the anticorrosion ability of pipeline more preferable, disclosure satisfy that the transmission demand of various media.

Fig. 2 is the attachment structure schematic diagram for the first conduit sealing structure 130 that the utility model embodiment provides.Please together Refering to fig. 1 and Fig. 2, in the present embodiment, the first conduit 400 includes first end 410 and second end 420,410 company of being provided with of first end The be connected by power connector 120 for connecing actuating unit can when needing to be attached the first conduit 400 and the second conduit 500 By be connected by power connector 120, to connect actuating unit, the connection of auxiliary the first conduit 400 and the second conduit 500 is carried out.

First conduit 400 is set in first flange 200 and second end 420 stretches out first flange 200, the first conduit 400 Second end 420 end and the both ends of first flange 200 be staggered, make to be formed between the first conduit 400 and first flange 200 No pressure sealing structure, will not cause stress the end of the second end 420 of the first conduit 400, make sealing technique effect more It is good, avoid the generation of pipeline internal medium leakage and leakage accident.

Preferably, the first conduit 400 is welded in first flange 200 and second end 420 stretches out first flange 200.Make The connection of one conduit 400 and first flange 200 is more secured, also, avoids the generation of media leaks and leakage accident in conduit. Welding procedure is simple and quick, saves work efficiency, so that whole pipe-line system is formed and is seamlessly connected nozzle, plays no pressure effect.

First flange 200 includes for annular shape, including inner ring surface 210, outer ring surface 220 and connection inner ring surface 210 and outer shroud The first side 230 and second side 240 in face 220, are provided with multiple first through hole 250 in first flange 200, and each first Through-hole 250 runs through first side 230 and second side 240, and the setting of first through hole 250 facilitates first flange 200 and second Being fixedly connected between flange 300.

First conduit 400 is welded in first flange 200, inner ring surface 210 and the first conduit 400 welding and second end 420 Inner ring surface 210 is stretched out, the length of the stretching inner ring surface 210 of second end 420 is 5-15mm, first side 230 and second side 240 Distance be 5-15mm.

The length of the stretching inner ring surface 210 of second end 420 i.e. first method at a distance from first side 230 and second side 240 The thickness of orchid 200 is related, also related with the internal diameter of the first conduit 400.The internal diameter of first conduit 400 is bigger, then second end 420 is stretched The length for going out inner ring surface 210 is longer, and the thickness of first flange 200 is thicker.The preferably inside radius and second end of the first conduit 400 420 stretch out the consistency of thickness of the length of inner ring surfaces 210 and first flange 200, make the first conduit 400 and first flange 200 with And first conduit 400 and second flange 300 connection it is more secured.

Preferably, the weld of inner ring surface 210 and the first conduit 400 has close to the first welding section 270 of second end 420 With the second welding section 260 far from second end 420, the second welding section 260 is 60 ° of welding sections, and the first welding section 270 is 30 ° of welderings Area is met, keeps its welding more secured.

Fig. 3 is the enlarged drawing at III in Fig. 2, Fig. 4 be IV in Fig. 2 at enlarged drawing.Also referring to Fig. 2-Fig. 4, this reality It applies in example, the positioning electric welding of the second welding section 260 forms 60 ° of welding sections of bull nose, i.e. separate first conduit of the second welding section 260 400 and first flange 200 side be cancave cambered surface, radian be π/3rad, keep the welding of the second welding section 260 more secured. First welding section, 270 face bonding forms 30 ° of welding sections of filleted corner, i.e. separate first conduit 400 and first of the first welding section 270 Flange 200 is followed successively by cambered surface, and radian is π/6rad, makes the first conduit 400 and first flange 200 in the first welding section 270 On the basis of stable connection, the connection of the first conduit 400 and the second conduit 500 is also more secured.

Second welding section 260 is arranged between the first conduit 400 and first flange 200, keeps its welding more secured.And the One welding section 270 is arranged between first flange 200, second flange 300 and the first conduit 400, is arranged in 200 He of first flange In second flange 300, so, it is 30 ° of welding sections, with the first conduit 400, the position of first flange 200 and second flange 300 Relationship matches, and connection is more secured.

Fig. 5 is the attachment structure schematic diagram of the second conduit sealing structure 140 provided in this embodiment.Also referring to Fig. 1 And Fig. 5, in the present embodiment, the second conduit 500 includes third end 510 and the 4th end 520, and the second conduit 500 is set to the second method In orchid 300 and third end 510 is located in second flange 300, and the end at the third end 510 of the second conduit 500 is located at second flange In 300, make to form no pressure sealing structure between the second conduit 500 and second flange 300, second flange 300 directly can be with To the nozzle cladding at the third end 510 of the second conduit 500, the end at the third end 510 of the second conduit 500 will not be caused to press Power keeps sealing technique effect more preferable, avoids the generation of pipeline internal medium leakage and leakage accident.

Preferably, the second conduit 500 is welded in second flange 300 and third end 510 is located in second flange 300, is made Connection between second conduit 500 and second flange 300 is more secured.Welding procedure is simple and quick, saves work efficiency, makes whole Pipe-line system, which is formed, is seamlessly connected nozzle, plays no pressure effect.

Second flange 300 includes that inner surface 310, outer surface 320 and connection inner surface 310 connect with the first of outer surface 320 Junction 330 and the second joint face 340, multiple second through-holes 350 are provided in second flange 300, and each second through-hole 350 is equal Through the first joint face 330 and the second joint face 340, the setting of the second through-hole 350 facilitates first flange 200 and second flange Being fixedly connected between 300.

Second flange 300 is cylindric, and first flange 200 is consistent with the structure of second flange 300 and shape, makes the first method It can be docked between orchid 200 and second flange 300, the connection of conduit no pressure sealing structure 100 is more secured, also, shape It is more beautiful.

Inner surface 310 is located at the welding of the second conduit 500 and third end 510 in inner surface 310,330 He of the first joint face The distance of second joint face 340 is 5-15mm, and the second conduit 500 forms circular groove with inner surface 310, and the groove depth of circular groove is 5- 15mm。

The groove depth of circular groove is consistent with the stretching of second end 420 length of inner ring surface 210, keeps second end 420 and third end 510 right Connect, to keep the connection of the first conduit 400 and the second conduit 500 more secured, the first conduit 400 and the second conduit 500 it is interior Diameter is consistent, and with the consistency of thickness of second flange 300.

The weld of inner surface 310 and the second conduit 500 is third welding section 360, i.e. second flange 300 and third end 510 third welding section 360 is 60 ° of welding sections, keeps its welding more secured.The positioning electric welding of third welding section 360 forms outer circle The side far from the second conduit 500 and second flange 300 of 60 ° of angle welding section, i.e. third welding section 360 is cancave cambered surface, arc Degree is π/3rad, keeps the welding of third welding section 360 more secured.

The place contacted with inner surface 310 at third end 510 is provided with Sealing shield ring 370, avoids the anti-of the second conduit 500 Corrosion internal layer 401 is destroyed, also, keeps the second conduit 500 and the connection sealing of second flange 300 more preferable.

When between the first conduit 400, the second conduit 500, first flange 200 and second flange 300 connection formed conduit without When pressure sealing structure 100, the first welding section 270 and third welding section 360 are contacted with the external world, and the second welding section 260 In inside, so it is respectively 60 ° of welding sections and 30 ° of welding sections.

The end set at third end 510 has sealing ring 380, close before the first conduit 400 is connect with the second conduit 500 Seal 380 is arranged in inner surface 310, so that the setting of sealing ring 380 is more stablized, when the first conduit 400 and the second conduit 500 When connection, the second end 420 of the first conduit 400 passes through sealing ring with the place of docking at the third end 510 of the second conduit 500 380 connections, make to be better able to form sealing structure between the first conduit 400 and the second conduit 500.Protect steel pipe inside and outside coating not It is destroyed, the liquid in pipeline will not be by secondary pollution.

In the present embodiment, first through hole 250 is corresponding with the second through-hole 350, i.e., is provided with multiple first in first flange 200 Through-hole 250, is provided with multiple second through-holes 350 corresponding with first through hole 250 in second flange 300, and a screw rod passes through the One through-hole 250 and corresponding second through-hole 350 are simultaneously fixed by nut.

First flange 200 is being set in outside the first conduit 400, second flange 300 is set in outside the second conduit 500, and By be staggered with the place of docking of the first conduit 400 and the second conduit 500 at the docking of first flange 200 and second flange 300 when It waits, will be fixed up between first flange 200 and second flange 300 by screw rod and nut, to make the first conduit 400 and the Fixed effect between two conduits 500 is more preferable.

Preferably, first through hole 250 and second through-hole 350 corresponding with first through hole 250 coaxial arrangement, make screw rod and spiral shell The installation of cap is all more convenient, also more laborsaving.

Second end 420 and third end 510 are docked, and second end 420 stretches out first flange 200 and in second flange 300, Third end 510 is located in second flange 300, further illustrates the first conduit 400, the second conduit 500, first flange 200 and the Link position relationship between two flanges 300 forms the sealed connection between the first conduit 400 and the second conduit 500.

Preferably, second end 420 is welded in first flange 200 and second flange 300, and third end 510 is welded in second In flange 300.That is the second end 420 of the first conduit 400 is welded in first flange 200 and second flange 300, the first conduit 400 are welded in first flange 200 and second end 420 stretches out first flange 200, and the second end 420 for stretching out first flange 200 is set It sets in second flange 300, the third end 510 of the second steel pipe is welded in second flange 300, makes setting in second flange 300 Interior second end 420 is docked with third end 510, and the third end 510 of the second end 420 of the first conduit 400 and the second conduit 500 is right It connects, the position that second end 420 stretches out first flange 200 is fixed in second flange 300, to make second end 420 and third end It is staggered with the place of docking of first flange 200 and second flange 300 at 510 docking, the first conduit 400 and the second conduit 500 It is staggered with the place of docking of first flange 200 and second flange 300 at docking, conduit no pressure sealing structure 100 will not be to pipeline Sealing at cause stress, keep sealing technique effect more preferable, avoid pipeline internal medium leakage and leakage accident generation.

With good economic benefit and social benefit：Leakage accident, processing cost 1-5 occur for buried pipeline system Wan Yuan increases considerably maintenance cost in case of multiple leakage accident, and leakage accident does not occur for no pressure conduit sealing technique, Economic benefit is considerable.Meet user's anti-corrosion pipe it is buried it is water-tight do not repair, do not leak economic use value, life drink With the requirement of water lines water quality non-secondary pollution green technology.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (8)

1. a kind of first conduit sealing structure, which is characterized in that including first flange and the first conduit, first conduit includes First end and second end, first conduit is set in the first flange and the second end stretches out the first flange, The first flange is including being annular shape, including inner ring surface, and the inner ring surface is welded with first conduit and the second end The inner ring surface is stretched out, the length that the second end stretches out the inner ring surface is 5-15mm.

2. the first conduit sealing structure according to claim 1, which is characterized in that first conduit is steel pipe, described First conduit is welded in the first flange and the second end stretches out the first flange.

3. the first conduit sealing structure according to claim 2, which is characterized in that the first flange further includes outer ring surface With the first side and second side for connecting the inner ring surface and the outer ring surface, the first side and the second side Distance be 5-15mm.

4. the first conduit sealing structure according to claim 3, which is characterized in that be provided in the first flange multiple First through hole, each first through hole run through the first side and the second side.

5. the first conduit sealing structure according to claim 2, which is characterized in that the inner ring surface and first conduit Weld have close to the second end the first welding section and far from the second end the second welding section.

6. the first conduit sealing structure according to claim 5, which is characterized in that second welding section is 60 ° of welding Area, first welding section are 30 ° of welding sections.

7. the first conduit sealing structure according to claim 2, which is characterized in that first conduit is coated in anticorrosion Layer and anticorrosion outer layer.

8. according to claim 1-7 any one of them the first conduit sealing structures, which is characterized in that the first end is provided with Connect the be connected by power connector of actuating unit.