CN215060251U

CN215060251U - Threaded flange for petroleum pipeline

Info

Publication number: CN215060251U
Application number: CN202121044026.8U
Authority: CN
Inventors: 邰华
Original assignee: Ma'anshan Guangyuan Flange Rings Co ltd
Current assignee: Ma'anshan Guangyuan Flange Rings Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-12-07
Anticipated expiration: 2031-05-17

Abstract

The utility model relates to a pipe connection spare technical field, and disclose a threaded flange for petroleum pipeline, including ring flange and pipeline, the inside wall fixed connection of ring flange has the internal thread cover, and the inside wall of internal thread cover and the lateral wall threaded connection of pipeline, the inside wall left end fixedly connected with of internal thread cover supports the clamping ring, support the right side wall fixedly connected with sealing member of clamping ring, and the lateral wall of sealing member offsets the setting with the tip of pipeline, support the buffer board of a plurality of evenly distributed of left side wall fixedly connected with of clamping ring, every buffer board is the slope setting, the seal groove has been seted up to the inside wall left end of ring flange, a plurality of evenly distributed's screw hole has been seted up to the lateral wall of ring flange. The utility model discloses can effectively improve the leakproofness of being connected between flange and the pipeline to avoid the leakage phenomenon that the fluid impact sealing member leads to, connect stably simultaneously, can reduce the influence that outside collision impact caused the junction.

Description

Threaded flange for petroleum pipeline

Technical Field

The utility model relates to a pipe connection spare technical field especially relates to a threaded flange for petroleum pipeline.

Background

The flange is also called flange disk or flange, the flange is the part for connecting the pipe and the pipe, and is used for connecting the pipe ends, the flange is provided with holes, the two flanges are tightly connected by bolts, the flange is sealed by a liner, the flange comprises a threaded flange and a welding flange, wherein the threaded flange is screwed and connected by utilizing the threads processed in the inner hole of the flange and the pipe with the threads, welding is not needed, and therefore, the flange has the characteristic of convenient installation.

At present, threaded flanges are commonly used for connection between petroleum pipelines, but in the actual use process, sealing parts are generally arranged at the joints of the two flanges, and the threaded joints between the threaded flanges and the pipelines are not provided with the sealing parts, so that the possibility of petroleum leakage from the threaded joints of the threaded flanges and the pipelines exists, and when the pipelines are used for conveying petroleum, fluid impacts the joints of the two flanges for a long time, so that the sealing parts are unevenly stressed for a long time, the sealing parts are easily damaged, and the sealing performance of the joints is influenced, therefore, the threaded flange for the petroleum pipelines is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art and generally setting up the sealing member with two flange joint, and threaded joint between screw flange and the pipeline does not set up the sealing member, lead to having the oil from the possibility that screw flange and pipeline threaded joint leaked, and the pipeline is when carrying oil moreover, the junction of two flanges is strikeed for a long time to the fluid, lead to the long-term atress of this sealing member uneven, easily make the sealing member damage, influence the problem of junction leakproofness, and the screw flange for the petroleum pipeline who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a threaded flange for petroleum pipeline, includes ring flange and pipeline, the inside wall fixed connection of ring flange has the internal thread cover, and the inside wall of internal thread cover and the lateral wall threaded connection of pipeline, the inside wall left end fixedly connected with of internal thread cover supports the clamping ring, support the right side wall fixedly connected with sealing member of clamping ring, and the lateral wall of sealing member offsets the setting with the tip of pipeline, support the buffer board of a plurality of evenly distributed of left side wall fixedly connected with of clamping ring, every the buffer board is the slope setting, the seal groove has been seted up to the inside wall left end of ring flange, a plurality of evenly distributed's screw hole has been seted up to the lateral wall of ring flange, the ring flange is connected with the location and prevents that favourable turn constructs and buffering protection machanism.

Preferably, buffering protection machanism includes external screw thread ring, interior lag, rubber sleeve and outer lag, the fixed cover of lateral wall that the external screw thread ring lies in the ring flange is established, the lateral wall of external screw thread ring and the inside wall threaded connection of interior lag, the fixed cover of lateral wall that the rubber sleeve lies in interior lag is established, and the fixed cover of lateral wall that outer lag is located the rubber sleeve is established.

Preferably, the positioning rotation-preventing mechanism comprises square holes formed in the upper end and the lower end of the side wall of the flange plate, and the inside of each square hole is inserted with a T-shaped retaining column in a sliding mode.

Preferably, the left ends of the two T-shaped retaining columns are fixedly connected with threaded columns, and the column walls of the two threaded columns are in threaded connection with limit stops.

Preferably, a connecting rod is fixedly arranged between two adjacent buffer plates.

Preferably, the outer side wall of the outer protective sleeve is fixedly sleeved with an anti-slip rubber sleeve.

Compared with the prior art, the utility model provides a threaded flange for petroleum pipeline possesses following beneficial effect:

1. this threaded flange for petroleum pipeline, flange dish through being equipped with, mutually supporting of a plurality of screw holes and internal thread cover, can regard as the connection of petroleum pipeline to use, through the mutually supporting of the clamping ring that supports that is equipped with and sealing member, can seal threaded connection department between internal thread cover and the pipeline, prevent that the here from taking place the leakage phenomenon, through a plurality of buffer boards that are equipped with, can cushion the speed reduction to the oil of flange connection department, reduce its impact force to two flange connection departments, thereby can avoid the sealing member to receive the leakage phenomenon that long-term impact damage leads to.

2. This threaded flange for petroleum pipeline through the buffering protection machanism that is equipped with, accomplishes the back at two ring flanges installations, can protect two ring flange junctions from the outside, reduces the influence that outside collision impact led to the fact the junction, prevents through the location that is equipped with that favourable turn constructs, when the installation, can fix a position two ring flanges to it is spacing, prevents that it from receiving exciting force etc. and taking place the relative rotation phenomenon, guarantees the compactness of connecting.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can effectively improve the leakproofness of being connected between flange and the pipeline to avoid the fluid to strike the leakage phenomenon that the sealing member leads to, connect stably simultaneously, can reduce the influence that external collision strikes and causes the junction.

Drawings

FIG. 1 is a schematic structural view of a threaded flange for a petroleum pipeline according to the present invention;

FIG. 2 is a schematic side view of the structure of FIG. 1;

fig. 3 is an enlarged view of a portion a of fig. 1.

In the figure: 1 ring flange, 2 pipelines, 3 internal thread cover, 4 are supported clamping ring, 5 sealing members, 6 buffer boards, 7 seal grooves, 8 screw holes, 9 external thread ring, 10 interior lag, 11 rubber sleeve, 12 outer lag, 13 anti-skidding rubber sleeves, 14T shape bumping post, 15 screw post, 16 limit stop, 17 connecting rods.

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.

Referring to fig. 1-3, a screwed flange for petroleum pipeline, including ring flange 1 and pipeline 2, ring flange 1's inside wall fixed connection has internal thread cover 3, and internal thread cover 3's inside wall and pipeline 2's lateral wall threaded connection, internal thread cover 3's inside wall left end fixedly connected with supports clamping ring 4, support clamping ring 4's right side wall fixedly connected with sealing member 5, and sealing member 5's lateral wall offsets with pipeline 2's tip and sets up, support clamping ring 4's a plurality of evenly distributed's of left side wall fixedly connected with buffer board 6, every buffer board 6 is the slope setting, seal groove 7 has been seted up to ring flange 1's inside wall left end, a plurality of evenly distributed's screw hole 8 has been seted up to ring flange 1's lateral wall, ring flange 1 is connected with location rotation prevention mechanism and buffering protection machanism.

Buffering protection mechanism includes external screw thread ring 9, interior lag 10, rubber sleeve 11 and outer lag 12, external screw thread ring 9 is located the fixed cover of the lateral wall of ring flange 1 and establishes, the lateral wall of external screw thread ring 9 and the inside wall threaded connection of interior lag 10, the fixed cover of the lateral wall of lag 10 is established in rubber sleeve 11 is located, and outer lag 12 is located the fixed cover of the lateral wall of rubber sleeve 11 and establishes, after the installation is accomplished, through twisting interior lag 10 move and with two ring flange 1 on external screw thread ring 9 threaded connection, can protect two ring flange 1 junctions from the outside, reduce outside collision impact, the influence that the extrusion etc. caused the junction.

The positioning rotation-preventing mechanism comprises square holes formed in the upper end and the lower end of the side wall of the flange plate 1, T-shaped retaining columns 14 are inserted into the two square holes in a sliding mode, the two flange plates 1 can be positioned during installation and are limited, the phenomenon of relative rotation caused by the fact that the two flange plates receive exciting force and the like is prevented, and connection tightness is guaranteed.

The equal fixedly connected with screw post 15 in left end of two T shape bumping posts 14, the equal threaded connection of the post wall of two screw posts 15 has limit stop 16, and after the installation, with

limit stop

16 and 15 threaded connection of screw post, can prevent that T shape bumping post 14 from breaking away from ring flange 1 this moment.

The connecting rod 17 is fixedly arranged between the two adjacent buffer plates 6, so that the stability of connection between the buffer plates 6 can be improved, and the impact resistance can be improved.

The outer side wall of the outer protection sleeve 12 is fixedly sleeved with the anti-slip rubber sleeve 13, so that the friction force between a human hand and the outer protection sleeve 12 can be increased, and people can conveniently rotate the outer protection sleeve 12.

The utility model discloses in, during the use, during the installation, earlier through the lateral wall threaded connection of internal thread cover 3 with pipeline 2, can make sealing member 5 and pipeline 2 tip closely offset through supporting clamping ring 4, can seal the processing through the gap of sealing member 5 internal thread cover 3 and pipeline 2 junction this moment, prevent that this place from taking place to leak, can link together two pipelines 2 through another ring flange 1 this moment, when carrying oil, oil flows to the junction of two ring flanges 1 when, owing to receive the buffering that blocks of a plurality of buffer boards 6, can reduce the oil velocity of flow, and because a plurality of buffer boards 6 are the slope setting, so most oil can not directly impact the junction of two ring flanges 1, thereby can effectively reduce the influence of impact force to the junction of ring flange 1.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The threaded flange for the petroleum pipeline comprises a flange plate (1) and a pipeline (2) and is characterized in that an inner wall of the flange plate (1) is fixedly connected with an inner thread sleeve (3), the inner wall of the inner thread sleeve (3) is in threaded connection with the outer wall of the pipeline (2), a pressing ring (4) is fixedly connected to the left end of the inner wall of the inner thread sleeve (3), a sealing piece (5) is fixedly connected to the right side wall of the pressing ring (4), the side wall of the sealing piece (5) is abutted to the end of the pipeline (2), a plurality of buffer plates (6) which are uniformly distributed are fixedly connected to the left side wall of the pressing ring (4), each buffer plate (6) is obliquely arranged, a sealing groove (7) is formed in the left end of the inner wall of the flange plate (1), and a plurality of threaded holes (8) which are uniformly distributed are formed in the side wall of the flange plate (1), the flange plate (1) is connected with a positioning anti-rotation mechanism and a buffering protection mechanism.

2. A threaded flange for a petroleum pipeline according to claim 1, characterized in that the buffer protection mechanism comprises an external thread ring (9), an internal protection sleeve (10), a rubber sleeve (11) and an external protection sleeve (12), the external thread ring (9) is located on the outer side wall of the flange (1) and is fixedly sleeved, the outer side wall of the external thread ring (9) is in threaded connection with the inner side wall of the internal protection sleeve (10), the rubber sleeve (11) is located on the outer side wall of the internal protection sleeve (10) and is fixedly sleeved, and the external protection sleeve (12) is located on the outer side wall of the rubber sleeve (11) and is fixedly sleeved.

3. A threaded flange for petroleum pipelines according to claim 1, characterized in that said positioning and rotation-preventing mechanism comprises square holes provided at the upper and lower ends of the side wall of the flange plate (1), and T-shaped retaining posts (14) are inserted into the two square holes in a sliding manner.

4. A threaded flange for petroleum pipelines according to claim 3, characterized in that the left ends of two T-shaped retaining posts (14) are fixedly connected with threaded posts (15), and the post walls of the two threaded posts (15) are connected with limit stops (16) in a threaded manner.

5. A threaded flange for petroleum pipelines according to claim 1, characterized in that a connecting rod (17) is fixedly arranged between two adjacent buffer plates (6).

6. A threaded flange for petroleum pipelines according to claim 2, characterized in that the outer side wall of the outer protective sleeve (12) is fixedly sleeved with a non-slip rubber sleeve (13).