CN207555028U - A kind of conduit no pressure sealing structure - Google Patents

Abstract

The utility model provides a kind of conduit no pressure sealing structure, belongs to conduit interconnection technique field.Conduit no pressure sealing structure includes first flange, second flange, the first conduit and the second conduit, first conduit and the docking of the second conduit, first flange and second flange docking, first flange is sheathed on outside the first conduit and first flange is stretched out in the end docked with the second conduit of the first conduit, and second flange is sheathed on outside the second conduit and the end docked with the first conduit of the second conduit is located in second flange.This conduit no pressure sealing structure will not make 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 conduit no pressure sealing structure

Technical field

The utility model is related to conduit interconnection technique field, in particular to a kind of conduit no pressure 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 conduit no pressure sealing structures, will not be to being caused at the sealing of pipeline Pressure makes 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 conduit no pressure sealing structure, including first flange, second flange, the first conduit and the second conduit, first Conduit and the docking of the second conduit, first flange and second flange docking, first flange is sheathed on outside the first conduit and the first conduit The end docked with the second conduit stretch out first flange, second flange be sheathed on that the second conduit is outer and the second conduit with first The end of conduit docking is located in second flange.

Further, in the utility model preferred embodiment, above-mentioned first flange is set with the place of docking of second flange It is equipped with gasket.

Further, in the utility model preferred embodiment, multiple first through hole are provided in above-mentioned first flange, Multiple the second through-holes corresponding with first through hole are provided in second flange, a screw rod passes through first through hole and corresponding second Through-hole simultaneously passes through nut and fixes.

Further, in the utility model preferred embodiment, above-mentioned first through hole and corresponding with first through hole Two through-holes are coaxially disposed.

Further, in the utility model preferred embodiment, above-mentioned first conduit includes first end and second end, the Two conduits include third end and the 4th end, second end and the docking of third end, and first end stretches out first flange and positioned at second flange Interior, third end is located in second flange.

Further, in the utility model preferred embodiment, above-mentioned first conduit and the second conduit are steel pipe, the Two ends are welded in first flange and second flange, and third end is welded in second flange.

Further, in the utility model preferred embodiment, above-mentioned first flange and the weld of the first conduit have There are the first welding section of close second end and the second welding section far from second end, the first welding section is 60 ° of welding sections, and second welds Area is met as 30 ° of welding sections.

Further, in the utility model preferred embodiment, above-mentioned second flange and the third welding section at third end For 60 ° of welding sections.

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

Further, in the utility model preferred embodiment, above-mentioned first conduit is set with the place of docking of the second conduit It is equipped with sealing ring.

The advantageous effect for the conduit no pressure sealing structure that the preferred embodiment of the utility model provides is：First flange set Outside the first conduit and first flange is stretched out in the end docked with the second conduit of the first conduit, and second flange is sheathed on second Outside the conduit and end docked with the first conduit of the second conduit is located in second flange, the docking of the first conduit and the second conduit Place is staggered with the place of docking of first flange and second flange, makes to constitute no pressure between the first conduit and the second conduit Sealing structure, second flange directly can lead the first conduit with the nozzle at the second conduit place of docking and the second conduit with first Nozzle cladding at pipe docking, will not cause stress the end of the first conduit and the end of the second conduit, imitate sealing technique Fruit is more preferable, avoids the generation of pipeline internal medium leakage and leakage accident, and giving full play to the connection of flange has preferable intensity and tight The advantage of close property, the wide effect of suitable dimensions range.

Description of the drawings

It, below will be to use required 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 of conduit no pressure sealing structure that the utility model embodiment provides；

Fig. 2 is the connection structure signal of the first conduit in the conduit no pressure sealing structure that the utility model embodiment provides Figure；

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 connection structure signal of the second conduit in the conduit no pressure sealing structure that the utility model embodiment provides Figure.

Icon：100- conduit no pressure sealing structures；200- first flanges；300- second flanges；The first conduits of 400-； The second conduits of 500-；110- gaskets；401- anticorrosion internal layers；402- anticorrosion outer layers；410- first ends；420- second ends； 120- power connector connectors；210- inner ring surfaces；220- outer ring surfaces；230- first sides；240- second sides；250- first is logical Hole；The second welding sections of 260-；The first welding sections of 270-；510- thirds end；The 4th ends of 520-；310- inner surfaces；320- outer surfaces； 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- is close Seal.

Specific embodiment

Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality 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 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 configured to arrange and design with a variety of different.Therefore, below to attached The detailed description of the embodiment of the utility model 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 embodiment in the utility model, ordinary skill people Member's all other embodiments obtained without creative efforts belong to the model of the utility model protection It encloses.

It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent 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 causes to press for sealing the pipeline of two docking at the sealing between pipeline Power makes sealing technique effect more preferable, avoids the generation of media leaks and leakage accident in steel pipe.

Conduit no pressure sealing structure 100 includes first flange 200, second flange 300, the first conduit 400 and second and leads Pipe 500, the first conduit 400 and the second conduit 500 dock, and first flange 200 and second flange 300 are docked, 200 sets of first flange First flange 200, the second method are stretched out set on 400 outer and the first conduit 400 the end docked with the second conduit 500 of the first conduit Orchid 300 is sheathed on 500 outer and the second conduit 500 the end docked with the first conduit 400 of the second conduit and is located at second flange 300 It is interior.

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 the end of the first conduit 400 and the end of the second conduit 500 will not be caused stress, 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, gasket 110 is provided at the docking of first flange 200 and second flange 300, makes 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 it 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 Pipe, steel pipe realize that the different medium progress delivery application of water supply, gas supply and fuel feeding is commonplace as anti-corrosion 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.The anticorrosion ability for making pipeline is more preferable, disclosure satisfy that the transmission demand of various media.

Fig. 2 is the connection knot of the first conduit 400 in the conduit no pressure sealing structure 100 that the utility model embodiment provides Structure schematic diagram.Also referring to Fig. 1 and Fig. 2, in the present embodiment, the first conduit 400 includes first end 410 and second end 420, the One end 410 is provided with the power connector connector 120 of connection actuating unit, need to the first conduit 400 and the second conduit 500 into When row connection, can actuating unit be connected by power connector connector 120, carry out auxiliary the first conduit 400 and second and lead The connection of pipe 500.

First conduit 400 is set in first flange 200 and second end 420 stretches out first flange 200, it is preferable that first Conduit 400 is welded in first flange 200 and second end 420 stretches out first flange 200.Make the first conduit 400 and first flange 200 connection is more secured, also, avoids the generation of media leaks and leakage accident in conduit.

First flange 200 is included to be circular, including inner ring surface 210, outer ring surface 220 and connection inner ring surface 210 and outer shroud The first side 230 in face 220 and second side 240, are provided with multiple first through hole 250 in first flange 200, and each first For through-hole 250 through first side 230 and second side 240, 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, and 210 and first conduit 400 of inner ring surface welds and second end 420 Inner ring surface 210 is stretched out, welding procedure is simple and quick, saves work efficiency, forms whole pipe-line system and is seamlessly connected nozzle, rises To no pressure effect.

The length of the stretching inner ring surface 210 of second end 420 is the distance of 5-15mm, first side 230 and second side 240 For 5-15mm.Second end 420 stretches out the length of inner ring surface 210 and first side 230 and distance i.e. the first method of 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 210 and first conduit 400 of inner ring surface 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, makes 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 for cancave cambered surface, radian is π/3rad, and the welding for making the second welding section 260 is 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, makes its welding more secured.And the One welding section 270 is arranged between first flange 200,300 and first conduit 400 of second flange, is arranged on 200 He of first flange In second flange 300, so, for 30 ° of welding sections, the position with the first conduit 400, first flange 200 and second flange 300 Relationship matches, and connection is more secured.

Fig. 5 is the connection structure signal of the second conduit 500 in conduit no pressure sealing structure 100 provided in this embodiment Figure.Also referring to Fig. 1 and Fig. 5, in the present embodiment, the second conduit 500 includes 510 and the 4th end 520 of third end, the second conduit 500 are set in second flange 300 and third end 510 is located in second flange 300, i.e. 420 He of second end of the first conduit 400 The third end 510 of second conduit 500 is docked, and the position that second end 420 stretches out first flange 200 is fixed in second flange 300, So as to make to be staggered at the docking at second end 420 and third end 510 with the place of docking of first flange 200 and second flange 300.

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.

Second flange 300 includes inner surface 310, outer surface 320 and connection inner surface 310 and connects with the first of outer surface 320 330 and second joint face 340 of junction, 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 and shape of second flange 300, 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.

310 and second conduit 500 of inner surface welds and third end 510 is located 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 length that the groove depth of circular groove stretches out inner ring surface 210 with second end 420 is consistent, makes second end 420 and third end 510 right Connect, so as to make 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 310 and second conduit 500 of inner surface is third welding section 360, i.e. second flange 300 and third end 510 third welding section 360 is 60 ° of welding sections, makes 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 It spends for π/3rad, the welding for making third welding section 360 is 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, make 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, the setting of sealing ring 380 is made more to stablize, 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 in second flange 300 multiple with 250 corresponding second through-hole 350 of first through hole, and a screw rod passes through the One through-hole 250 and corresponding second through-hole 350 simultaneously pass through nut and fix.

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

Preferably, it first through hole 250 and is coaxially disposed with 250 corresponding second through-hole 350 of first through hole, makes screw rod and spiral shell The installation of cap is all more convenient, also more laborsaving.

First conduit 400 includes first end 410 and second end 420, and the second conduit 500 includes 510 and the 4th end of third end 520, second end 420 and third end 510 are docked, and first end 410 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 500,200 and second method of first flange Link position relationship between orchid 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 puts in second flange 300, the third end 510 of the second steel pipe is welded in second flange 300, makes to be arranged on second flange 300 Interior second end 420 is docked with third end 510, at the docking of the first conduit 400 and the second conduit 500 with first flange 200 and It is staggered at the docking of second flange 300, conduit no pressure sealing structure 100 will not make close to being caused stress at the sealing of pipeline Encapsulation technique effect is more preferable, avoids the generation of pipeline internal medium leakage and leakage accident.

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 (10)

1. a kind of conduit no pressure sealing structure, which is characterized in that including first flange, second flange, the first conduit and second Conduit, first conduit and second conduit docking, the first flange and second flange docking, first method Orchid is sheathed on outside first conduit and first method is stretched out in the end docked with second conduit of first conduit Orchid, the second flange is sheathed on outside second conduit and the end docked with first conduit position of second conduit In in the second flange.

2. conduit no pressure sealing structure according to claim 1, which is characterized in that the first flange and described second Gasket is provided at the docking of flange.

3. conduit no pressure sealing structure according to claim 2, which is characterized in that be provided in the first flange more A first through hole is provided with multiple the second through-holes corresponding with the first through hole in the second flange, and a screw rod passes through The first through hole and corresponding second through-hole simultaneously pass through nut and fix.

4. conduit no pressure sealing structure according to claim 3, which is characterized in that the first through hole and with described The corresponding second through-hole coaxial arrangement of one through-hole.

5. conduit no pressure sealing structure according to claim 1, which is characterized in that first conduit includes first end And second end, second conduit include third end and the 4th end, the second end and third end docking, the first end Stretch out the first flange and in the second flange, the third end is located in the second flange.

6. conduit no pressure sealing structure according to claim 5, which is characterized in that first conduit and described second Conduit is steel pipe, and the second end is welded in the first flange and the second flange, and the third end is welded in institute It states in second flange.

7. conduit no pressure sealing structure according to claim 6, which is characterized in that the first flange and the first conduit Weld have close to second end the first welding section and far from second end the second welding section, first welding section is 60 ° of welding sections, second welding section are 30 ° of welding sections.

8. conduit no pressure sealing structure according to claim 7, which is characterized in that the second flange and the third The third welding section at end is 60 ° of welding sections.

9. conduit no pressure sealing structure according to claim 6, which is characterized in that first conduit and described second Conduit is coated with anticorrosion internal layer and anticorrosion outer layer.

10. conduit no pressure sealing structure according to claim 1, which is characterized in that first conduit and described the Sealing ring is provided at the docking of two conduits.