CN216555807U

CN216555807U - Flange for pipeline

Info

Publication number: CN216555807U
Application number: CN202123226240.8U
Authority: CN
Inventors: 张润宏; 徐向宏
Original assignee: Dingxiang Xinkun Flange Forging Co ltd
Current assignee: Dingxiang Xinkun Flange Forging Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-17
Anticipated expiration: 2031-12-21

Abstract

The utility model relates to the technical field of flanges, and particularly discloses a flange for a pipeline, which comprises a pipe body and a flange plate, the pipe body is divided into two sections, the flange plate is fixed on the outer surface of one section of the pipe body, the outer side of the other section of the pipe body is provided with an adjusting plate, the adjusting disc is movably sleeved on the outer surface of the pipe body, the inner side of the adjusting disc is provided with a mounting hole which penetrates through the adjusting disc, the inner side of the flange plate is provided with a nut which is movably arranged on the inner side of the flange plate and can axially move relative to the flange plate, one side of the adjusting disk is provided with a sealing block which is fixed on the inner side of the adjusting disk, the flange plate for the pipeline provided by the utility model can be used for conveniently connecting two sections of pipelines, compared with the common pipeline flange, the pipeline flange provided by the utility model can be used for conveniently enhancing the sealing performance of the flange and preventing the pipeline flange from being knocked when being disassembled.

Description

Flange for pipeline

Technical Field

The utility model relates to the technical field of flanges, in particular to a flange for a pipeline.

Background

The pipe flanges are classified into the following six basic types according to the connection mode with the pipe: a flat welding flange, a butt welding flange, a socket welding flange, a loose sleeve flange, a threaded flange and an integral flange. Flat welding of the flange: the device is mainly used under the condition of mild medium conditions, such as low-pressure non-purified compressed air and low-pressure circulating water, and has the advantage of low price; and (3) welding a flange: the most commonly used one is butt welding connection with the pipe, the welding joint has better quality, and the neck of the flange can bear harsher conditions by using taper transition; socket welding a flange: the method is commonly used in pipelines with PN less than or equal to 10.0MPa and DN less than or equal to 40; loosening the flange: it is often used when the medium is not at high temperature or pressure and is more corrosive. When the medium is strong in corrosivity, the part (flanging short section) of the flange contacting the medium is made of corrosion-resistant high-grade materials such as stainless steel and the like, and the flange ring made of the low-grade materials such as carbon steel is used for clamping the flange ring outside to realize sealing; integral flange: flanges are often integrated with equipment, pipes, tubes, valves, etc., of the type commonly used in equipment and valves.

Adopt the sealed mode of filling up of installation to increase the leakproofness of pipe connection department among the prior art, when corrosion damage appears in the sealed pad of flange inside, the condition of leaking will appear to influenced operational aspect greatly, the flange can appear the corrosion after long-time the use and the condition of tightly closing, need use to beat the instrument and just can be two flange phase separation, greatly increased operating personnel's work load.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a flange for a pipeline, which can be used for conveniently enhancing the sealing property of the flange and preventing knocking from being required during disassembly, and solves the problems that in the prior art, when a sealing gasket in the flange is corroded and damaged, the leakage condition occurs, so that the working condition is seriously influenced, the flange is corroded and tightly closed after being used for a long time, and two flanges can be separated from each other only by using a knocking tool.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a flange for pipeline, including body and ring flange, this body is two sections, the ring flange is fixed in one section body surface, another section body outside is provided with the adjustment disk, this body surface is located to this adjustment disk activity cover, this adjustment disk inboard has the mounting hole, this mounting hole runs through in this adjustment disk, the inboard of this ring flange has the nut, this nut sets up in this ring flange inboard movably, and this nut can be axial displacement for the ring flange, this adjustment disk one side has sealed piece, this sealed piece is fixed in the adjustment disk inboard, the inboard of this body has the constant head tank, this constant head tank is seted up in this body inner wall.

Compared with the common pipeline flange, the pipeline flange provided by the utility model can be used for conveniently connecting two sections of pipelines, and can be used for conveniently enhancing the sealing property of the flange and preventing the flange from being knocked when being disassembled, so that the problem that in the prior art, when a sealing gasket in the flange is corroded and damaged, the leakage condition occurs, the working condition is greatly influenced, the flange is corroded and tightly closed after being used for a long time, and the two flanges can be separated by using a knocking tool is solved.

In a possible embodiment, the adjusting disc can rotate relative to the tube body, the sealing block can be in contact with the tube body, and a positioning block is arranged on the outer side of the sealing block and fixed on the outer surface of the sealing block.

In a possible embodiment, the positioning block is located in the positioning groove and contacts with the tube, and the sealing block has a sealing ring outside, and the sealing ring contacts with the sealing block, the positioning block and the tube.

In one possible embodiment, the nut has a top plate on one side, which is movably arranged inside the flange and which is axially movable and rotatable relative to the flange.

In one possible embodiment, a compression spring is arranged between the top plate and the nut, one end of the compression spring is fixed on the outer surface of the nut, and the other end of the compression spring is in contact with the top plate.

Roof and nut that can be convenient for adjust position between ring flange and the adjustment disk can be when installing and dismantling, adjust the interval between two sections pipelines, avoid when dismantling, and the ring flange corrodes, need carry out the problem that can just dismantle of beating repeatedly to the ring flange, have shortened the takedown time greatly.

In a possible embodiment, the mounting hole has a bolt inside, the bolt is movably placed inside the mounting hole, the bolt can be in threaded connection with a nut, and the bolt has a fixture block outside.

In a possible implementation manner, the fixture block is fixed on the outer surface of the bolt, the position of the bolt can be limited by the fixture block, and the fixture block can be clamped with the top plate.

Through setting up bolt and nut that can be convenient for connect ring flange and adjustment disk, can guarantee the connection to ring flange and adjustment disk at the in-process that uses to can guarantee the stability of ring flange in the installation, and can utilize the locating piece to protect the sealing ring, prevent that inside liquid from corroding the sealing ring.

The utility model has the beneficial effects that:

1. the bolt and the nut which can be used for conveniently connecting the flange plate and the adjusting disc are arranged, so that the connection of the flange plate and the adjusting disc can be ensured in the use process, the stability of the flange plate in the installation process can be ensured, the sealing ring can be protected by the positioning block, and the sealing ring is prevented from being corroded by internal liquid;

2. the top plate and the nut which can be convenient for adjust the position between the flange plate and the adjusting plate are arranged, so that the interval between two sections of pipelines can be adjusted when the pipeline is installed and disassembled, the problem that the flange plate is corroded, repeated knocking on the flange plate can be used for disassembling is avoided, and the disassembling time is greatly shortened.

Drawings

Fig. 1 is a perspective view of a flange for pipes according to the present invention.

Fig. 2 is a schematic view showing an internal structure of a flange for piping according to the present invention.

Fig. 3 is a sectional view of a flange for pipes according to the present invention.

Fig. 4 is a sectional view showing a structure of a bolt and a nut of the flange for a pipe according to the present invention.

In the figure, 1-pipe body, 2-flange plate, 3-mounting hole, 4-adjusting plate, 5-bolt, 6-nut, 7-top plate, 8-clamping block, 9-compression spring, 10-sealing block, 11-positioning block, 12-sealing ring and 13-positioning groove.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1-4, a flange for a pipeline according to this embodiment includes a pipe body 1 and a flange 2, where the pipe body 1 has two sections, the flange 2 is fixed on an outer surface of one section of the pipe body 1, an adjusting plate 4 is disposed on an outer side of the other section of the pipe body 1, the adjusting plate 4 is movably sleeved on the outer surface of the pipe body 1, a mounting hole 3 is disposed on an inner side of the adjusting plate 4, the mounting hole 3 penetrates through the adjusting plate 4, a nut 6 is disposed on an inner side of the flange 2, the nut 6 is movably disposed on the inner side of the flange 2, the nut 6 can move axially relative to the flange 2, a sealing block 10 is disposed on one side of the adjusting plate 4, the sealing block 10 is fixed on the inner side of the adjusting plate 4, a positioning groove 13 is disposed on an inner wall of the pipe body 1, and the positioning groove 13 is disposed on the inner wall of the pipe body 1.

The flange plate 2 for the pipeline can be used for conveniently connecting two sections of pipelines 1, and compared with a common flange for the pipeline 1, the flange for the pipeline 1 provided by the utility model can be used for conveniently enhancing the sealing performance of the flange, and can also be used for preventing knocking when being disassembled, so that the problem that in the prior art, when a sealing gasket in the flange is corroded and damaged, the leakage condition occurs, the working condition is greatly influenced, the flange is corroded and closed after being used for a long time, and a knocking tool is needed to separate the two flanges is solved.

In a possible embodiment, the adjusting disc 4 can rotate relative to the tube 1, the sealing block 10 can contact with the tube 1, and the outer side of the sealing block 10 is provided with a positioning block 11, and the positioning block 11 is fixed on the outer surface of the sealing block 10.

In a possible embodiment, the positioning block 11 is located in the positioning groove 13 and contacts with the tube 1, and the sealing block 10 has a sealing ring 12 outside, and the sealing ring 12 contacts with the sealing block 10, the positioning block 11 and the tube 1.

In a possible embodiment, the nut 6 has a top plate 7 on one side, the top plate 7 being movably arranged inside the flange 2, and the top plate 7 being axially movable and rotatable relative to the flange 2.

In a possible embodiment, a compression spring 9 is arranged between the top plate 7 and the nut 6, one end of the compression spring 9 is fixed on the outer surface of the nut 6, and the other end of the compression spring 9 is in contact with the top plate 7.

Roof 7 and nut 6 of position between can be convenient for adjust ring flange 2 and adjusting disk 4 can be when installing and dismantling, adjust the interval between two sections pipelines 1, avoid when dismantling, ring flange 2 corrodes, need carry out the problem that repeated beating just can dismantle to ring flange 2, shortened the takedown time greatly.

In a possible embodiment, the mounting hole 3 is provided with a bolt 5 on the inner side, the bolt 5 is movably placed in the mounting hole 3, the bolt 5 can be in threaded connection with a nut 6, and the bolt 5 is provided with a fixture block 8 on the outer side.

In a possible embodiment, the fixture block 8 is fixed on the outer surface of the bolt 5, and the fixture block 8 can limit the position of the bolt 5, and the fixture block 8 can also be clamped with the top plate 7.

Through setting up bolt 5 and the nut 6 that can be convenient for connect ring flange 2 and adjustment disk 4, can guarantee the connection to ring flange 2 and adjustment disk 4 at the in-process that uses to can guarantee the stability of ring flange 2 in the installation, and can utilize locating piece 11 to protect sealing ring 12, prevent that inside liquid from corroding sealing ring 12.

The working principle is as follows: when installing, insert sealed piece 10 in pipeline 1, rotate adjustment disk 4, make bolt 5 be connected with nut 6, rotate bolt 5, make nut 6 remove, thereby fix ring flange 2 and adjustment disk 4, later bolt 5 can be with roof 7 joint under the effect of pressure, when dismantling, reverse rotation bolt 5, bolt 5 promotes nut 6 case roof 7 and removes, later make adjustment disk 4 and ring flange 2 remove under the effort of bolt 5 and nut 6, thereby accomplish and break away from, and when bolt 5 was dismantled outward, because nut 6 and compression spring 9 to the restriction of roof 7, bolt 5 breaks away from the joint with roof 7.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, and the scope of protection is still within the scope of the utility model.

Claims

1. A flange for a pipeline is characterized in that: comprises a pipe body (1) and a flange plate (2), wherein the pipe body (1) is divided into two sections, the flange plate (2) is fixed on the outer surface of one section of the pipe body (1), an adjusting disc (4) is arranged on the outer side of the other section of the pipe body (1), the adjusting disc (4) is movably sleeved on the outer surface of the pipe body (1), the inner side of the adjusting disc (4) is provided with a mounting hole (3), the mounting hole (3) penetrates through the adjusting disc (4), the inner side of the flange disc (2) is provided with a nut (6), the nut (6) is movably arranged at the inner side of the flange plate (2), and the nut (6) can move axially relative to the flange plate (2), one side of the adjusting disk (4) is provided with a sealing block (10), the sealing block (10) is fixed on the inner side of the adjusting disk (4), the inner side of the tube body (1) is provided with a positioning groove (13), and the positioning groove (13) is arranged on the inner wall of the tube body (1).

2. A flange for pipes according to claim 1, wherein: the adjusting disc (4) can rotate relative to the pipe body (1), the sealing block (10) can be in contact with the pipe body (1), a positioning block (11) is arranged on the outer side of the sealing block (10), and the positioning block (11) is fixed on the outer surface of the sealing block (10).

3. A flange for pipes according to claim 2, wherein: the positioning block (11) is positioned in the positioning groove (13) and is in contact with the pipe body (1), a sealing ring (12) is arranged on the outer side of the sealing block (10), and the sealing ring (12) is in contact with the sealing block (10), the positioning block (11) and the pipe body (1).

4. A flange for pipes according to claim 3, wherein: the nut (6) is provided with a top plate (7) on one side, the top plate (7) is movably arranged on the inner side of the flange plate (2), and the top plate (7) can axially move and rotate relative to the flange plate (2).

5. A flange for pipes according to claim 4, wherein: a compression spring (9) is arranged between the top plate (7) and the nut (6), one end of the compression spring (9) is fixed on the outer surface of the nut (6), and the other end of the compression spring (9) is in contact with the top plate (7).

6. A flange for pipes according to claim 5, wherein: the inner side of the mounting hole (3) is provided with a bolt (5), the bolt (5) is movably placed in the mounting hole (3), the bolt (5) can be in threaded connection with a nut (6), and the outer side of the bolt (5) is provided with a clamping block (8).

7. A flange for pipes according to claim 6, wherein: this fixture block (8) is fixed in this bolt (5) surface, and this fixture block (8) can restrict the position of bolt (5), and this fixture block (8) can also with roof (7) joint.