CN115126946A

CN115126946A - High-pressure flange

Info

Publication number: CN115126946A
Application number: CN202210733447.4A
Authority: CN
Inventors: 马崇琦; 张新涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-09-30

Abstract

The invention relates to a high-pressure flange, comprising: the left flange can be welded with a first pipeline, a first installation groove is formed in the left flange, and a hook fastener is rotationally arranged in the first installation groove; the right flange can be welded with a second pipeline, a second mounting groove is formed in the right flange, the hook piece can stretch into the second mounting groove, and the hook piece can be hooked in the right flange in a forward rotating mode, so that the left flange is connected with the right flange. The invention has the advantages that: through setting up torsional spring and hook fastener and set up at hook fastener front end and pass the inclined plane for the flange need not use the bolt when the installation, but directly pushes left flange and right flange to each other in order to be connected, can be fixed left flange and right flange through hook fastener promptly, convenient and fast.

Description

High-pressure flange

Technical Field

The invention relates to the technical field of flanges, in particular to a high-pressure flange.

Background

A flange, also known as a flange collar or flange. The flange is a part for connecting the shaft and the shaft or the pipeline and is used for connecting pipe ends; the flange connection is that two pipelines, pipe fittings or equipment are respectively fixed on a flange plate, a flange pad is added between the two flange plates and fastened together by bolts to complete the connection. The flange connection is an important connection mode for pipeline construction. The following problems often occur in the prior art flanges when in use:

(1) when the existing flange is installed, two flange plates are fixed together through bolts, and in the connection mode, when the flange is installed, a plurality of nuts and bolts need to be screwed together, so that the installation of the flange can be completed, but the connection mode has large installation workload and low efficiency;

(2) when the existing flange is used, because the high-pressure medium in a pipeline can generate pressure impact for many times when flowing, bolts and nuts of the connecting flange can be loosened, and connection failure can be generated in serious cases, so that accidents are caused;

(3) when the existing flange is used, a sealing gasket is required to be added between two flange plates so as to complete high-pressure sealing, and the sealing element is easy to lose elasticity and loose after long-time use, so that leakage is caused.

Disclosure of Invention

Therefore, in order to solve the above problems, a high-pressure flange is needed, which has better connection stability and is not easy to loosen.

The invention discloses a high-pressure flange, which comprises: the left flange can be welded with a first pipeline, a first mounting groove is formed in the left flange, and a hook fastener is rotationally arranged in the first mounting groove; the right flange can be welded with a second pipeline, a second mounting groove is formed in the right flange, the hook piece can stretch into the second mounting groove, and the hook piece can be hooked in the right flange in a forward rotating mode, so that the left flange is connected with the right flange.

In one embodiment, the left flange is sleeved with a fixed disc, the fixed disc is in threaded connection with the left flange, a limiting disc is fixedly arranged on the fixed disc, a linkage disc is rotatably arranged between the fixed disc and the limiting disc, a connecting rod is fixedly arranged on the linkage disc, an annular piston cavity is arranged on the end surface of the left flange close to the right flange, the connecting rod penetrates through the left flange and extends into the annular piston cavity, an annular piston is arranged at the end part of the connecting rod, an annular sealing element is arranged between the annular piston and the right flange, a flow passage is arranged on the left flange, the flow passage is communicated with the first pipeline and the annular piston cavity, so that the medium in the first pipeline can enter the annular piston cavity through the flow passage, thereby pushing the annular piston to compress the annular seal to seal the junction between the left and right flanges.

In one embodiment, the hook member has a hook portion and a tail portion, and the hook portion and the tail portion are respectively located at two sides of the rotation center.

In one embodiment, a torsion spring is arranged between the hook piece and the left flange, and the torsion spring can drive the hook piece to rotate in the positive direction.

In one embodiment, the limiting disc can abut against the tail part, so that the hook fastener is limited from rotating reversely.

In one embodiment, an abutting inclined surface is arranged on the limiting disc and can abut against the tail part.

In one embodiment, two first mounting grooves are symmetrically formed in the left flange, two second mounting grooves are correspondingly formed in the right flange, one hook member and the torsion spring are arranged in each of the two first mounting grooves, the two hook members can be synchronously hooked on the right flange, and the two hook members can be synchronously abutted against the limiting disc to be fixed.

In one embodiment, the hook part is provided with a pushing inclined surface, and when the right flange is close to the left flange, the right flange can abut against the pushing inclined surface and push the hook fastener to rotate reversely.

In one embodiment, a plurality of connecting rods are arranged on the linkage disc, and the connecting rods penetrate through the left flange and are fixedly connected with the piston.

In one embodiment, the right flange is composed of a pipe body and a sleeve body, the pipe body is welded with the second pipeline, the sleeve body is sleeved on the pipe body, the end of the pipe body is provided with a butting ring, the sleeve body is butted against the butting ring, and the second mounting groove is formed in the sleeve body.

The invention has the advantages that:

1. by arranging the torsion spring and the hook fastener and arranging the pushing inclined plane at the front end of the hook fastener, the left flange and the right flange are directly pushed to each other for connection without using bolts when the flanges are installed, namely, the left flange and the right flange can be fixed through the hook fastener, so that the convenience and the rapidness are realized;

2. the left flange is provided with the threads, so that the fixing sleeve is in threaded connection with the left flange, the hook fastener can be limited only by rotating the fixing sleeve to move towards the right flange after the fixing sleeve is installed, the left flange and the right flange are locked and fixed together, and the installation is convenient and rapid;

3. by arranging the annular piston, when high-pressure medium passes through a pipeline, the medium enters the annular piston cavity to push the annular piston to move, the positioning disc is pulled to move towards the right flange, the hook fastener is controlled to continuously rotate in the forward direction, the right flange is hooked tightly, looseness between the flanges is avoided, and the connection between the hook fastener and the right flange is firm when the medium pressure is higher;

4. through setting up annular piston, when the high pressure medium in the pipeline, the medium gets into annular piston chamber, promotes annular piston motion, will set up the sealing member of annular piston front end and push to right flange for the gap between left flange and the right flange can be sealed to the sealing member, and also can not appear leaking because the sealing member elasticity reduces after long-time the use.

Drawings

FIG. 1 is a cross-sectional view of a high pressure flange according to the present invention, wherein the left flange is fully connected to the right flange;

FIG. 2 is a cross-sectional view of the present invention during installation with the right flange abutting the push ramp;

FIG. 3 is a cross-sectional view of the present invention during installation with the right flange urging the hook members to rotate in opposite directions;

FIG. 4 is a cross-sectional view of the present invention during installation with the hook member hooked to the right flange;

FIG. 5 is a cross-sectional view of the left flange of the present invention;

FIG. 6 is a cross-sectional view of the right flange of the present invention.

In the figure, a left flange 1, a first pipeline 101, a first installation groove 11, a flow channel 13, an annular piston cavity 12, a right flange 3, a second pipeline 301, a second installation groove 31, a pipe body 32, a butting ring 321, a sleeve body 33, a hook fastener 4, a tail 41, a hook 42, a pushing inclined surface 421, a fixed disk 51, a limiting disk 52, a butting inclined surface 521, a linkage disk 62, a connecting rod 621, an annular piston 61, a sealing element 7 and a torsion spring 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 6, the present invention discloses a high-pressure flange, which includes: a left flange 1 and a right flange 3 which can be connected with each other, as shown in fig. 5, the left flange 1 can be welded with a first pipeline 101, a first installation groove 11 is formed on the left flange 1, and a hook fastener 4 is rotatably arranged in the first installation groove 11; as shown in fig. 6, the right flange 3 can be welded to the second pipeline 301, a second mounting groove 31 is formed in the right flange 3, the hook member 4 can extend into the second mounting groove 31, and the hook member 4 can be hooked to the right flange 3 by forward rotation, so that the left flange 1 is connected to the right flange 3.

The right flange 3 is composed of a pipe body 32 and a sleeve body 33, the pipe body 32 is welded with the second pipeline 301, the sleeve body 33 is sleeved on the pipe body 32, the end part of the pipe body 32 is provided with a butting ring 321, the sleeve body 33 is butted against the butting ring 321, and the second mounting groove 31 is formed in the sleeve body 33.

It can be understood that, by rotating the sleeve 33 to align the second mounting groove 31 with the first mounting groove 11, the hooking part extends into the second mounting groove 31, so that the hooking part 4 is hooked on the sleeve 33, and the left flange 1 and the right flange 3 are closed and fixed.

Preferably, a fixed disk 51 is sleeved on the left flange 1, the fixed disk 51 is in threaded connection with the left flange 1, a limiting disk 52 is fixedly arranged on the fixed disk 51, a linkage disk 62 is rotatably arranged between the fixed disk 51 and the limiting disk 52, a connecting rod 621 is fixedly arranged on the linkage disk 62, an annular piston cavity 12 is formed in the end face, close to the right flange 3, of the left flange 1, the connecting rod 621 penetrates through the left flange 1 and extends into the annular piston cavity 12, an annular piston 61 is arranged at the end part of the connecting rod 621, an annular sealing element 7 is arranged between the annular piston 61 and the right flange 3, a flow channel 13 is formed in the left flange 1, the flow channel 13 is communicated with the first pipeline 101 and the annular piston cavity 12, so that a medium in the first pipeline 101 can enter the annular piston cavity 12 through the flow channel 13, thereby pushing the annular piston 61 against the annular seal 7 to seal the connection between the left and

right flanges

1, 3.

It is worth mentioning that the connecting rod 621 passes left flange 1 is connected with annular piston 61, makes the linkage disk 62 can be followed left flange 1 slides, and fixed disk 51 is located respectively with spacing dish 52 the both sides of linkage disk 62 are so that linkage disk 62 with fixed disk 51 swivelling joint, and can by fixed disk 51 drives and slides, fixed disk 51 with left flange 1 threaded connection, thereby through the rotation fixed disk 51 can drive annular piston 61 removes. And the annular piston cavity 12 is connected with the first pipeline 101 through the flow passage 13, when a high-pressure medium exists in the first pipeline 101, the high-pressure medium can enter the annular piston cavity 12 to press the piston 61, so that the piston 61 pulls the linkage disc 62 to move towards the right flange 3, and the fixed disc 51 is limited to rotate reversely.

Preferably, the hook member 4 has a hook portion 42 and a tail portion 41, and the hook portion 42 and the tail portion 41 are respectively located on both sides of the rotation center.

It will be appreciated that when the hook 42 is rotated downwardly, the tail 41 is rotated upwardly.

Preferably, the hook member 4 and the left flange 1 are provided with a torsion spring 8 therebetween, and the torsion spring 8 can drive the hook member 4 to rotate in the forward direction, so as to be connected with the right flange 3.

Preferably, the limiting disc 52 can abut against the tail 41, so as to limit the reverse rotation of the hook 4.

It can be understood that, after the hook portion 42 of the hook fastener 4 is fastened to the right flange 3, the left flange 1 and the right flange 3 are fastened by the hook fastener 4, and the limiting plate 52 abuts against the tail portion 41 of the hook fastener 4 to limit the reverse rotation of the hook fastener 4, thereby locking the hook fastener 4.

Preferably, the stopper disc 52 is provided with an abutting inclined surface 521, and the abutting inclined surface 521 can abut against the tail 41.

It can be understood that, by providing the abutting inclined surface 521, when the limiting disc 52 is close to the hook 4, the abutting inclined surface 521 can push the tail 41 outwards, so as to lock the hook 4.

Preferably, the left flange 1 is gone up the symmetry and has been seted up two first mounting grooves 11, the right flange 3 is gone up corresponding two second mounting grooves 31 of having seted up, two all be provided with one in the first mounting groove 11 the fastener 4 and torsional spring 8, and two the fastener 4 can hook in step in the right flange 3, two the fastener 4 can the synchronous butt in thereby spacing dish 52 is fixed.

It can be understood that the stability of the connection of the left flange 1 and the right flange 3 can be improved by symmetrically arranging the hook fasteners 4 at both sides.

Further, in this embodiment, it is provided with four first mounting grooves 11, every to be annular distribution on the flange 1 of a left side first mounting groove 11 all is provided with a fastener 4, correspond on the flange 3 of the right side and be provided with four second mounting grooves 31 with first mounting groove 11.

Preferably, a pushing inclined plane 421 is arranged on the hook portion 42, and when the right flange 3 is close to the left flange 1, the right flange 3 can abut against the pushing inclined plane 421 and push the hook member 4 to rotate reversely.

It can be understood that, when the right flange 3 is close to the left flange 1, the right flange 3 is firstly abutted against the pushing inclined plane 421, the right flange 3 is continuously pushed to be close to the left flange 1, the hook member 4 can be driven to rotate reversely through the pushing inclined plane 421, and when the right flange 3 is closed with the left flange 1, the hook member 4 is hooked and buckled on the sleeve body 33 of the right flange 3, so that the left flange 1 is fixedly connected with the right flange 3.

Preferably, a plurality of connecting rods 621 are arranged on the linkage disc 62, and the connecting rods 621 penetrate through the left flange 1 and the piston 61 to be fixedly connected, so that the stability of connection between the linkage disc 62 and the piston 61 can be improved.

The working mode of the invention is as follows: when the pipeline connecting device is used for connecting pipelines, firstly, a left flange 1 and a first pipeline 101 need to be welded together, a right flange 3 and a second pipeline 301 need to be welded together, then, the right flange 3 is rotated to align a second installation groove 31 with a hook fastener 4, as shown in fig. 2, the right flange 3 is close to the left flange 1, when the right flange 3 abuts against a pushing inclined plane 421, the right flange 3 is continuously pushed leftwards, as shown in fig. 3, the right flange 3 can drive the hook fastener 4 to rotate reversely, when the right flange 3 and the left flange 1 are folded, as shown in fig. 4, a hook part 42 rotates forwards under the action of a torsion spring 8 and is hooked on a sleeve body 33 of the right flange 3, so that the left flange 1 and the right flange 3 are fixedly connected, then, a fixed disc 51 is rotated, so that the fixed disc 51 drives a linkage disc 62 to move rightwards until the inclined plane abuts against the hook part 521, by pushing the tail part 41 to rotate in the forward direction, the hook part 42 is driven to rotate in the forward direction to press the right flange 3 towards the left flange 1. At the same time, the piston 61 presses the sealing member 7 to seal the joint of the left flange 1 and the right flange 3.

It should be mentioned that, when a high-pressure medium is introduced into the first pipeline 101, the medium enters the piston cavity 12 through the flow channel 13 to push the piston 61 to move rightward, so that the sealing member 7 is more closely attached, and the purpose of preventing leakage is achieved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A high pressure flange, comprising:

the left flange can be welded with a first pipeline, a first mounting groove is formed in the left flange, and a hook fastener is rotationally arranged in the first mounting groove;

the right flange can be welded with a second pipeline, a second mounting groove is formed in the right flange, the hook piece can stretch into the second mounting groove, and the hook piece can be hooked in the right flange in a forward rotating mode, so that the left flange is connected with the right flange.

2. The high-pressure flange according to claim 1, wherein a fixed disk is sleeved on the left flange, the fixed disk is in threaded connection with the left flange, a limiting disk is fixedly arranged on the fixed disk, a linkage disk is rotatably arranged between the fixed disk and the limiting disk, a connecting rod is fixedly arranged on the linkage disk, an annular piston cavity is formed in the end face, close to the right flange, of the left flange, the connecting rod penetrates through the left flange and extends into the annular piston cavity, an annular piston is arranged at the end of the connecting rod, an annular sealing element is arranged between the annular piston and the right flange, a flow channel is formed in the left flange and communicated with the first pipeline and the annular piston cavity, so that media in the first pipeline can enter the annular piston cavity through the flow channel, and the annular piston is pushed to extrude the annular sealing element to seal the annular sealing element between the left flange and the right flange And (4) a connecting part.

3. A high pressure flange according to claim 2, wherein the hook member has a hook portion and a tail portion, the hook portion and the tail portion being located on both sides of the rotational center.

4. A high-pressure flange according to claim 3, wherein a torsion spring is provided between said hooking member and said left flange, and said torsion spring can drive said hooking member to rotate in a forward direction.

5. The high-pressure flange as claimed in claim 4, wherein the retainer disk can abut against the tail portion, thereby restricting the reverse rotation of the hooking member.

6. The high-pressure flange as claimed in claim 5, wherein the limiting disc is provided with an abutting inclined surface, and the abutting inclined surface can abut against the tail part.

7. The high-pressure flange according to claim 6, wherein the left flange is symmetrically provided with two first mounting grooves, the right flange is correspondingly provided with two second mounting grooves, the two first mounting grooves are respectively provided with one hook member and the torsion spring, the two hook members can be synchronously hooked on the right flange, and the two hook members can be synchronously abutted against the limiting disc to be fixed.

8. A high-pressure flange according to claim 3, wherein the hook portion is provided with a pushing slope, and when the right flange approaches the left flange, the right flange can abut against the pushing slope and push the hook member to rotate in the opposite direction.

9. A high-pressure flange according to claim 2, wherein a plurality of said connecting rods are arranged on said linking plate, and each of said plurality of connecting rods passes through said left flange and is fixedly connected with said piston.

10. The high-pressure flange as claimed in claim 1, wherein the right flange is formed by a pipe body and a sleeve body, the pipe body is welded to the second pipeline, the sleeve body is sleeved on the pipe body, the end of the pipe body is provided with a butting ring, the sleeve body is butted against the butting ring, and the second mounting groove is formed in the sleeve body.