CN211423613U

CN211423613U - Sealing element for natural gas pipeline connection

Info

Publication number: CN211423613U
Application number: CN201921638636.3U
Authority: CN
Inventors: 王刚
Original assignee: Chongqing Shengyan Energy Co ltd
Current assignee: Chongqing Shengyan Energy Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-09-04
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a sealing element for natural gas pipeline connection, which comprises a shell; a sealing ring is arranged in the middle of the inner side of the shell, a plurality of positioning rods are fixedly arranged on two sides of the circumferential surface of the sealing ring, and the other ends of the positioning rods are fixed on the inner side of the shell; a plurality of telescopic rods are arranged at openings at two sides of the shell; the shell is internally provided with internal threads, the outer side of the circumference of the first heat insulation ring is provided with external threads, the first heat insulation ring is fixedly connected to one side of the sealing ring in the shell through threads, and the outer side of the first heat insulation ring is fixedly provided with a handle; a second heat insulation ring is arranged on the other side of the sealing ring, a plurality of limiting bulges are arranged on the outer side of the circumference of the second heat insulation ring, a groove is formed in the corresponding position of the shell, and the second heat insulation ring is fixed on the other side of the sealing ring in the shell through the clamping of the limiting bulges and the groove; the utility model discloses make sealing washer and external environment keep apart, guarantee the leakproofness that the sealing washer is all, improve the security and the suitability of pipeline.

Description

Sealing element for natural gas pipeline connection

Technical Field

The utility model relates to a pipeline sealing technical field specifically is a sealing member is used in natural gas line connection.

Background

The natural gas pipeline is a pipeline for conveying natural gas from a mining place or a processing plant to an urban gas distribution center or industrial enterprise users, and is also called a gas conveying pipeline.

In cold areas or winter, the gas transmission pipeline is easy to break down due to weather conditions or temperature changes, and the main reason of the failure is that the sealing element used at the pipeline joint is influenced by the temperature or the weather changes and deforms under the action of expansion with heat and contraction with cold so that the sealing property of the sealing element is not strong; thereby causing the pipe to fail.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealing member is used in natural gas line connection to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a sealing element for natural gas pipeline connection comprises a shell; a sealing ring is arranged in the middle of the inner side of the shell, a plurality of positioning rods are fixedly arranged on two sides of the circumferential surface of the sealing ring, and the other ends of the positioning rods are fixed on the inner side of the shell; a plurality of telescopic rods are arranged at openings at two sides of the shell; the shell is internally provided with internal threads, the outer side of the circumference of the first heat insulation ring is provided with external threads, the first heat insulation ring is fixedly connected to one side of the sealing ring in the shell through threads, and the outer side of the first heat insulation ring is fixedly provided with a handle; a second heat insulation ring is arranged on the other side of the sealing ring, a plurality of limiting bulges are arranged on the outer side of the circumference of the second heat insulation ring, a groove is formed in the corresponding position of the shell, and the second heat insulation ring is fixed on the other side of the sealing ring in the shell through the clamping of the limiting bulges and the groove; heat insulation layers are arranged on two sides of the sealing ring, and the heat insulation layers are filled with heat insulation materials; the heat insulation layer is arranged between the first heat insulation ring and the sealing ring and between the second heat insulation ring and the sealing ring.

Preferably, two mounting rings are arranged on the outer side of the circumference of the shell, and the two mounting rings are symmetrically distributed around the central axis of the shell; the mounting ring is provided with a screw hole, and a bolt penetrates through the screw hole to be fixed with the nut.

Preferably, the sealing ring is made of B-14 rubber, and an anti-corrosion coating is arranged on the inner side of the sealing ring; in order to identify natural gas, hydrogen sulfide gas is generally added into the natural gas, the hydrogen sulfide gas has certain corrosiveness, and the service life of the sealing ring can be prolonged by arranging the anti-corrosion coating.

Preferably, a clamping mechanism is arranged in the shell; the clamping mechanism comprises a pressure spring, a clamping block and an anti-skid pad; the pressure spring is arranged in the middle of the inner side of the shell, one end of the pressure spring is fixed on the inner side of the shell, the other end of the pressure spring is fixedly connected with the clamping block, the clamping block is arranged on the circumferential surface of the sealing ring, a non-slip mat is arranged at the joint of the clamping block and the sealing ring, and the non-slip mat is fixedly connected with the clamping block and the sealing ring through glue respectively.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a thereby set up first ring, heat insulation layer, the second separates the ring with the sealing washer with external isolation, make the pipe installation in cold areas or when winter, the sealing washer of pipe connection department can both have fine leakproofness, guarantees the invariant of sealing washer temperature, thereby makes the sealing washer can not stretch out and draw back along with the change of temperature and take place the problem damaged, reveal, improves the security and the suitability of pipeline.

Drawings

Fig. 1 is an overall cross-sectional view of the present invention;

fig. 2 is a schematic overall surface view of the present invention.

In the figure: 1. a housing; 2. a seal ring; 3. positioning a rod; 4. a first thermal isolation ring; 5. a second thermal insulation ring; 6. a heat insulating layer; 7. a mounting ring; 8. a bolt; 9. a nut; 10. a pressure spring; 11. a clamping block; 12. a non-slip mat; 13. and a screw hole.

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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a sealing member for natural gas pipeline connection comprises a shell 1; a sealing ring 2 is arranged in the middle of the inner side of the shell 1, a plurality of positioning rods 3 are fixedly arranged on two sides of the circumferential surface of the sealing ring 2, and the other ends of the positioning rods 3 are fixed on the inner side of the shell 1; an internal thread is arranged in the shell 1, an external thread is arranged on the outer side of the circumference of the first heat insulation ring 4, the first heat insulation ring 4 is fixedly connected to one side of the sealing ring 2 in the shell 1 through a thread, and a handle is fixedly arranged on the outer side of the first heat insulation ring 4; a second heat insulation ring 5 is arranged on the other side of the sealing ring 2, a plurality of limiting protrusions are arranged on the outer side of the circumference of the second heat insulation ring 5, grooves are formed in the corresponding positions of the shell 1, and the second heat insulation ring 5 is fixed on the other side of the sealing ring 2 in the shell 1 through the clamping of the limiting protrusions and the grooves; two sides of the sealing ring 2 are provided with heat insulating layers 6; the heat insulation layer 6 is arranged between the first heat insulation ring 4 and the sealing ring 2 and between the second heat insulation ring 5 and the sealing ring 2.

Furthermore, two mounting rings 7 are arranged on the outer side of the circumference of the shell 1, and the two mounting rings 7 are symmetrically distributed around the central axis of the shell 1; the mounting ring 7 is provided with a screw hole 13, and a bolt 8 penetrates through the screw hole 13 to be fixed with the nut 9.

Further, the sealing ring 2 is made of B-14 rubber, and an anti-corrosion coating is arranged on the inner side of the sealing ring 2; in order to identify natural gas, hydrogen sulfide gas is generally added into the natural gas, and the hydrogen sulfide gas has certain corrosiveness, and the service life of the sealing ring 2 can be prolonged by arranging the anti-corrosion coating.

Further, a clamping mechanism is arranged in the shell 1; the clamping mechanism comprises a pressure spring 10, a clamping block 11 and an anti-skid pad 12; the pressure spring 10 is arranged in the middle of the inner side of the shell 1, one end of the pressure spring 10 is fixed on the inner side of the shell 1, the other end of the pressure spring 10 is fixedly connected with the clamping block 11, the clamping block 11 is arranged on the circumferential surface of the sealing ring 2, a non-slip mat 12 is arranged at the joint of the clamping block 11 and the sealing ring 2, and the non-slip mat 12 is fixedly connected with the clamping block 11 and the sealing ring 2 through glue respectively.

The working principle is as follows: when a user installs the sealing ring 2, the sealing ring 2 is coated at the joint of a pipeline, a bolt 8 penetrates through a screw hole 13 formed in the mounting ring 7 and is fixed with a nut 9 so as to fix the shell 1, the sealing ring 2 is fixed at the middle position in the shell 1 by a positioning rod 3, then, a heat insulating layer 6 on the right side of the sealing ring 2 is filled with a heat insulating material (the heat insulating material can be polyurethane or rock wool material), and after the filling is finished, the second temperature insulation ring 5 is fixed at one side of the sealing ring 2 in the shell 1 by the clamping of a plurality of limiting bulges arranged on the outer side of the circumference and grooves arranged at the corresponding positions in the inner side of the; sealing washer 2 opposite side heat insulation layer 6 is filled with same heat insulating material, thereby later the user rotates the handle that first heat insulation ring 4 outside set up and with first heat insulation ring 4 threaded fixation in sealing washer 2 opposite side, first heat insulation ring 4 and second heat insulation ring 5 finish after fixed, sealing washer 2 is fixed in between first heat insulation ring 4 and the second heat insulation ring 5, and first heat insulation ring 4 and second heat insulation ring 5 extrusion sealing washer 2 make sealing washer 2 fixed more firm, and the heat insulation layer 6 that sealing washer 2 both sides set up can be fine isolated external temperature, make the piping erection in cold area or when winter, sealing washer 2 of pipe connection department can both have fine leakproofness, thereby can not stretch out and draw back along with the change of temperature and take place the damage, the problem of revealing, better realization sealing washer 2 constancy of temperature, the security performance of pipeline is improved.

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. The utility model provides a natural gas line connects and uses sealing member which characterized in that: comprises a shell (1); a sealing ring (2) is arranged in the middle of the inner side of the shell (1), a plurality of positioning rods (3) are fixedly arranged on two sides of the circumferential surface of the sealing ring (2), and the other ends of the positioning rods (3) are fixed on the inner side of the shell (1); an internal thread is arranged in the shell (1), an external thread is arranged on the outer side of the circumference of the first heat insulation ring (4), the first heat insulation ring (4) is fixed on one side of the sealing ring (2) in the shell (1) through threaded connection, and a handle is fixedly arranged on the outer side of the first heat insulation ring (4); a second heat insulation ring (5) is arranged on the other side of the sealing ring (2), a plurality of limiting bulges are arranged on the outer side of the circumference of the second heat insulation ring (5), a groove is formed in the corresponding position of the shell (1), and the second heat insulation ring (5) is fixed on the other side of the sealing ring (2) in the shell (1) through the clamping of the limiting bulges and the groove; heat insulation layers (6) are arranged on two sides of the sealing ring (2); the heat insulation layer (6) is arranged between the first heat insulation ring (4) and the sealing ring (2), and between the second heat insulation ring (5) and the sealing ring (2).

2. The seal for a natural gas pipe connection according to claim 1, wherein: two mounting rings (7) are arranged on the outer side of the circumference of the shell (1), and the two mounting rings (7) are symmetrically distributed around the central axis of the shell (1); the mounting ring (7) is provided with a screw hole (13), and a bolt (8) penetrates through the screw hole (13) to be fixed with the nut (9).

3. The seal for a natural gas pipe connection according to claim 1, wherein: the sealing ring (2) is made of B-14 rubber materials, and an anti-corrosion coating is arranged on the inner side of the sealing ring (2).

4. The seal for a natural gas pipe connection according to claim 1, wherein: a clamping mechanism is arranged in the shell (1); the clamping mechanism comprises a pressure spring (10), a clamping block (11) and an anti-skid pad (12); the pressure spring (10) is arranged in the middle of the inner side of the shell (1), one end of the pressure spring (10) is fixed on the inner side of the shell (1), the other end of the pressure spring is fixedly connected with the clamping block (11), the clamping block (11) is arranged on the circumferential surface of the sealing ring (2), an anti-skid pad (12) is arranged at the joint of the clamping block (11) and the sealing ring (2), and the anti-skid pad (12) is fixedly connected with the clamping block (11) and the sealing ring (2) through glue.