CN210510629U

CN210510629U - Ultra-low temperature dual-phase steel flange

Info

Publication number: CN210510629U
Application number: CN201921260802.0U
Authority: CN
Inventors: 陈章
Original assignee: Changzhou Changwu Xinshe Petrochemical Fittings Co ltd
Current assignee: Changzhou Changwu Xinshe Petrochemical Fittings Co ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-05-12
Anticipated expiration: 2029-08-06

Abstract

The utility model discloses an ultra-low temperature dual-phase steel flange, which comprises two external flanges, wherein the two external flanges are symmetrically arranged, one side of the two external flanges, which is far away from each other, is fixedly connected with a dual-phase steel sleeve, one side of the two external flanges, which is close to each other, is provided with a flange groove, the inside of the flange groove is provided with an internal flange, and one side of the two flange grooves, which is far away from each other, is provided with four clamping grooves, the utility model has simple structure, and can weld a large area and weld a plurality of welding points by arranging the external flanges and the dual-phase steel sleeve, thereby leading the connection between the dual-phase steel sleeve and a steel pipe to be firmer and not easy to loose, leading two rubber sealing strips arranged to be tightly propped against an annular lug at the same time inside an annular sealing groove by screwing a nut, improving, the condition of liquid leakage can not occur.

Description

Ultra-low temperature dual-phase steel flange

Technical Field

The utility model relates to a diphase steel flange, in particular to ultra-low temperature diphase steel flange belongs to flange technical field.

Background

An ultra-low temperature dual-phase steel flange is a flange made of ferrite-austenite dual-phase steel, has wide application in the industries of chemical industry, petroleum, energy, ocean and the like, is mainly applied to a steel pipe channel and the like, and is required to be welded at a steel pipe port and connected with steel pipes at two ends through two corresponding flanges when the steel pipes are connected. When the ultralow-temperature dual-phase steel flange in the prior art is welded at a port of a steel pipe, the contact surface between the flange and the steel pipe is small, the welding point is only one circle around the flange, so that the connection between the flange and the steel pipe is not firm and is easy to loosen, and the two flanges are connected only through bolts.

SUMMERY OF THE UTILITY MODEL

The utility model provides an ultra-low temperature dual phase steel flange has effectually solved the problem that exists among the prior art.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to an ultra-low temperature diphase steel flange, including the external flange, the external flange is provided with two, two the external flange symmetry sets up, two the equal fixedly connected with diphase steel bushing in one side that the external flange was kept away from each other, two the flange groove has all been seted up to one side that the external flange is close to each other, two the inside in flange groove is provided with inside flange, two four draw-in grooves have all been seted up to one side that the flange groove was kept away from each other, four fixture blocks of the equal fixedly connected with of both sides lateral wall that the inside flange is relative, eight the fixture block difference joint is in the inside of eight draw-in grooves, two a plurality of evenly distributed's through-.

As a preferred technical scheme of the utility model, the fixed cover of lateral wall of inside flange is equipped with annular lug, two the annular seal groove has all been seted up to the inside wall in flange groove, annular lug is located the inside of two annular seal grooves, two the equal fixedly connected with sealing rubber ring in one side that the annular seal groove was kept away from each other, two one side that sealing rubber ring is close to each other all offsets with annular lug.

As a preferred technical scheme of the utility model, homonymy outside flange and diphase steel bushing integrated into one piece set up, fixture block and inside flange integrated into one piece set up, annular lug sets up with inside flange integrated into one piece.

As an optimized technical scheme of the utility model, the both sides lateral wall that the annular lug is relative all inclines to set up.

As a preferred technical scheme of the utility model, two a plurality of evenly distributed's first welding groove has all been seted up to the one end that the diphase steel bushing was kept away from each other, second welding groove has all been seted up to the both sides cell wall that first welding groove is relative.

As an optimal technical scheme of the utility model, two the same and position one-to-one of through-hole figure on the external flange, two all alternate jointly between two last corresponding through-holes of external flange and be equipped with the bolt, it is a plurality of the equal threaded connection of one end of bolt has the nut, the nut all is located the outside of through-hole and offsets rather than one of them external flange.

The utility model discloses the beneficial effect who reaches is:

1. the utility model discloses simple structure, through setting up external flange and diphase steel bushing, during the use, with diphase steel bushing at the steel pipe outside, weld in first welding groove and second welding inslot portion, can carry out welding of large tracts of land and weld a plurality of welding points to make the firm cover of diphase more firm with the being connected of steel pipe, be difficult to appear becoming flexible.

2. The utility model discloses a set up inside flange and flange groove, place inside flange behind two flange grooves, make the fixture block difference joint of inside flange both sides in the inside of both sides draw-in groove, through screwing up the nut, make two rubber seal strips that set up tightly offset with annular lug inside the ring seal groove simultaneously, can improve the leakproofness between two outside flanges, when using, the condition of weeping can not appear.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the external structure of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic structural view of the inner flange of the present invention.

In the figure: 1. an outer flange; 2. a two-phase steel sleeve; 3. a flange groove; 31. an annular seal groove; 4. an inner flange; 5. a card slot; 51. a clamping block; 6. a through hole; 7. an annular projection; 71. sealing the rubber ring; 8. a first welding groove; 81. a second welding groove; 9. a bolt; 91. and (4) a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): as shown in figures 1-3, the ultra-low temperature dual-phase steel flange of the utility model comprises two external flanges 1, two external flanges 1 are symmetrically arranged, the side close to each other of the two external flanges 1 is tightly abutted, the side far away from each other of the two external flanges 1 is fixedly connected with a dual-phase steel jacket 2, when in use, the dual-phase steel jacket 2 can be sleeved on the outer wall of a steel pipe port, the side close to each other of the two external flanges 1 is provided with a flange groove 3, the inside of the two flange grooves 3 is provided with an internal flange 4, the internal flange 4 is positioned inside the two flange grooves 3, the side far away from each other of the two flange grooves 3 is provided with four clamping grooves 5, the side walls at the two opposite sides of the internal flange 4 are fixedly connected with four clamping blocks 51, the eight clamping blocks 51 are respectively clamped inside the eight clamping grooves 5, the two external flanges 1 are provided with a plurality of through holes 6 which are, the through holes 6 on the two external flanges 1 are respectively communicated with each other.

The outer side wall of the inner flange 4 is fixedly sleeved with an annular convex block 7, the inner side walls of the two flange grooves 3 are respectively provided with an annular sealing groove 31, the annular convex block 7 is positioned inside the two annular sealing grooves 31, one side, far away from each other, of each annular sealing groove 31 is fixedly connected with a sealing rubber ring 71, one side, close to each other, of each sealing rubber ring 71 is abutted against the annular convex block 7, the sealing performance of each annular sealing groove 31 can be improved, when the flange is used, the liquid leakage situation cannot occur, the outer flange 1 and the two-phase steel sleeve 2 are integrally formed and arranged on the same side, the fixture block 51 and the inner flange 4 are integrally formed and arranged, the sealing performance of the ultra-low temperature two-phase steel flange can be improved, the side walls on two opposite sides of the annular convex block 7 are obliquely arranged, the sealing rubber rings 71 and the annular convex blocks 7 are more compact and tighter, the first welding groove 8 of a plurality of evenly distributed has all been seted up to the one end that two diphase steel casings 2 kept away from each other, when the workman welds diphase steel casing 2 on the pipeline port, can increase the welding area of diphase steel casing 2 and pipeline lateral wall, second welding groove 81 has all been seted up to the both sides cell wall that first welding groove 8 is relative, the welding point has been increased, 6 figure of through-hole on two external flanges 1 are the same and the position one-to-one, all alternate jointly between two corresponding through-hole 6 on two external flanges 1 and be equipped with bolt 9, the equal threaded connection of one end of a plurality of bolts 9 has nut 91, nut 91 all is located through-hole 6's outside and offsets rather than one of them external flange 1, through twisting nut 92, make the firm of connecting between two external flanges 1.

Specifically, when the utility model is used, a worker respectively sleeves two biphase steel sleeves 2 on the outer side walls of two steel pipe ports to be connected, welds the two biphase steel sleeves 2 in a first welding groove 8 and a second welding groove 81 to firmly connect the two steel sleeves 2 and a pipeline, places an inner flange 4 in a flange groove 3 of one of outer flanges 1, respectively positions four fixture blocks 51 on one side of the inner flange 4 in four clamping grooves 5 of one of the flange grooves 3, sleeves the inner flange 4 in the other outer flange 1 through the flange groove 3, respectively clamps the four fixture blocks 51 on the other side of the inner flange 4 in the four clamping grooves 5 of the other flange groove 3, aligns each bolt 9 with two corresponding through holes 6 on the two outer flanges 1 and inserts the two through holes 6, screws a nut 91 on the bolt 9, and screws up to make the nut 91 contact with one of the outer flanges 1, at this time, the two sealing rubber rings 71 are tightly abutted against the annular convex block 7 in the annular sealing groove 31, so that the sealing performance of the annular sealing groove 31 can be improved, the sealing performance of the two outer flanges 1 can be improved, and liquid in the pipeline cannot leak out.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An ultra-low temperature dual-phase steel flange is characterized by comprising an external flange (1), the two external flanges (1) are symmetrically arranged, one sides, far away from each other, of the two external flanges (1) are fixedly connected with a two-phase steel sleeve (2), one sides, near to each other, of the two external flanges (1) are respectively provided with a flange groove (3), the inner parts of the two flange grooves (3) are respectively provided with an internal flange (4), one sides, far away from each other, of the two flange grooves (3) are respectively provided with four clamping grooves (5), the two opposite side walls of the inner flange (4) are fixedly connected with four clamping blocks (51), eight clamping blocks (51) are respectively clamped in the eight clamping grooves (5), and a plurality of uniformly distributed through holes (6) are formed in the outer flange (1).

2. The ultra-low temperature dual-phase steel flange as claimed in claim 1, wherein an annular bump (7) is fixedly sleeved on an outer side wall of the inner flange (4), annular sealing grooves (31) are formed in inner side walls of the two flange grooves (3), the annular bump (7) is located inside the two annular sealing grooves (31), sealing rubber rings (71) are fixedly connected to sides, away from each other, of the two annular sealing grooves (31), and one sides, close to each other, of the two sealing rubber rings (71) are abutted to the annular bump (7).

3. An ultra-low temperature dual-phase steel flange as claimed in claim 2, wherein the external flange (1) and the dual-phase steel sleeve (2) are integrally formed on the same side, the clamping block (51) and the internal flange (4) are integrally formed, and the annular projection (7) and the internal flange (4) are integrally formed.

4. An ultra-low temperature dual-phase steel flange according to claim 2, wherein the opposite side walls of the annular projection (7) are obliquely arranged.

5. An ultra-low temperature dual-phase steel flange as claimed in claim 1, wherein the two dual-phase steel sleeves (2) are provided with a plurality of uniformly distributed first welding grooves (8) at one end away from each other, and the two opposite groove walls of the first welding grooves (8) are provided with second welding grooves (81).

6. An ultra-low temperature dual-phase steel flange according to claim 1, wherein the number of the through holes (6) on the two external flanges (1) is the same, the positions of the through holes are in one-to-one correspondence, bolts (9) are inserted between the two corresponding through holes (6) on the two external flanges (1), one ends of the bolts (9) are connected with nuts (91) in a threaded manner, and the nuts (91) are located outside the through holes (6) and abut against one of the external flanges (1).