CN217382064U

CN217382064U - Flange type insulating joint

Info

Publication number: CN217382064U
Application number: CN202221574095.4U
Authority: CN
Inventors: 卓国穗; 杨允志
Original assignee: Guotaitong Energy Equipment Group Co ltd
Current assignee: Guotaitong Energy Equipment Group Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-09-06
Anticipated expiration: 2032-06-23

Abstract

The utility model discloses a flange formula insulating joint, which comprises an outer shell, the middle section diameter of shell inner wall is greater than the both ends diameter, the both ends of shell are fixed respectively and are inserted and be equipped with left connecting pipe and right connecting pipe, left forging and right forging are installed respectively in the middle section of shell, the cover is equipped with outer support ring on the left side forging, press from both sides between left side forging and the right forging and establish and install the internal insulation pad, the cover is equipped with the spill sealing washer on the lateral wall of internal insulation pad, the cover is equipped with the external insulation pad on the lateral wall of spill sealing washer. The utility model discloses a set up insulating and sealed in the shell inside, slow down insulating sealed ageing speed, increase life, separate through insulating and avoid voltage conduction to influence follow-up pipe-line system, suppress overvoltage and electric spark through the clearance discharge, avoid insulating and sealed breakdown or the conflagration that takes place, simple structure, protective capacities is better and safer.

Description

Flange type insulating joint

Technical Field

The utility model relates to a pipeline insulation connects the field, especially relates to flange formula insulation connects.

Background

The insulating flange joint usually of current pipe joint, two connecting pipes are mounting flange respectively promptly, accompany insulating sealing gasket between two flanges and install and form sealed insulation system, this mode simple structure, can realize certain insulating sealing protective capability, nevertheless because insulating sealing gasket exposes direct and air contact, then can lead to its ageing speed to accelerate, long service life is shorter, and when meetting transient high voltage input pipe-line systems such as thunderbolt, insulating sealing gasket can be punctured in the twinkling of an eye and lead to insulating inefficacy, can't continue to provide the protection for pipe-line systems promptly, then this mode insulating protective capability is general, can not protect overvoltage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a flange type insulating joint.

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

the flange type insulating joint comprises a shell, the diameter of the middle section of the inner wall of the shell is larger than the diameter of the two ends, a left connecting pipe and a right connecting pipe are respectively fixedly inserted at two ends of the shell, a left forging and a right forging are respectively installed at the middle section of the shell, an outer supporting ring is sleeved on the left forging, an inner insulating pad is clamped and installed between the left forging and the right forging, the outer side wall of the inner insulating pad is sleeved with a concave sealing ring, the outer side wall of the concave sealing ring is sleeved with an outer insulating pad, the inner wall of the middle section area of the shell is provided with an outer sleeve, the inner wall of the outer sleeve is respectively tightly propped against the outer support ring, the outer insulating pad and the outer side wall of the right forging, and a discharge gap is formed between the outer side wall of the left forging and the inner side wall of the outer sleeve as well as between the outer support ring and the outer insulating pad, and a plurality of convex discharge tips are arranged on the outer side wall of the left forging in the discharge gap.

Preferably, the one end that the shell was kept away from to left side connecting pipe extends to the outside of shell and installs left flange, the one end that the shell was kept away from to right side connecting pipe extends to the outside of shell and installs right flange, left side flange and right flange are all fixed on the shell.

Preferably, one end of the left forging, which is far away from the right forging, is abutted against the left connecting pipe, and one end of the right forging, which is far away from the left forging, is abutted against the right connecting pipe.

Preferably, two sides of the concave sealing ring are respectively and tightly contacted with the left forging and the right forging, and two sides of the outer insulating pad are respectively and tightly contacted with the left forging and the right forging.

Preferably, the inner wall of the middle section of the shell is filled with insulating fillers, and the insulating fillers are respectively positioned between the left forging and the inner wall of the middle section of the shell and between the right forging and the inner wall of the middle section of the shell.

Preferably, the outer diameter of the outer support ring is equal to the outer diameter of the outer insulating pad and equal to the outer diameter of the right forging, and the outer diameter of the left forging is smaller than the outer diameter of the right forging.

The utility model discloses beneficial effect: through set up insulating and sealed inside the shell, slow down insulating sealed ageing speed, increase life, separate through insulating and avoid voltage conduction to influence follow-up pipe-line system, suppress overvoltage and electric spark through the clearance discharge, avoid insulating and sealed breakdown or take place electric fire, simple structure, protective capacities is better and safer.

Drawings

Fig. 1 is a schematic structural view of a flange-type insulating joint according to the present invention;

fig. 2 is a cross-sectional view of a flange-type insulated joint according to the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

In the figure: the structure comprises a shell 1, an outer sleeve 11, an insulating filler 12, a left connecting pipe 2, a left flange 21, a right connecting pipe 3, a right flange 31, a left forged piece 4, a discharge tip 41, a right forged piece 5, an inner insulating pad 6, a concave sealing ring 61, an outer supporting ring 7, an outer insulating pad 8 and a discharge gap 9.

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 flange type insulating joint comprises a housing 1, wherein the diameter of the middle section of the inner wall of the housing 1 is larger than the diameters of the two ends, a left connecting pipe 2 and a right connecting pipe 3 are respectively fixedly inserted into the two ends of the housing 1, a left forging 4 and a right forging 5 are respectively installed on the middle section of the housing 1, an outer support ring 7 is sleeved on the left forging 4, an inner insulating pad 6 is clamped and installed between the left forging 4 and the right forging 5, a concave sealing ring 61 is sleeved on the outer side wall of the inner insulating pad 6, an outer insulating pad 8 is sleeved on the outer side wall of the concave sealing ring 61, two sides of the concave sealing ring 61 are respectively in abutting contact with the left forging 4 and the right forging 5, two sides of the outer insulating pad 8 are respectively in abutting contact with the left forging 4 and the right forging 5, an outer sleeve 11 is installed on the inner wall of the middle section area of the housing 1, the inner wall of the outer sleeve 11 is respectively abutted with the outer support ring 7, the outer insulating pad 8 and the outer side wall of the right forging 5, the outer diameter of the outer supporting ring 7 is equal to the outer diameter of the outer insulating pad 8 and equal to the outer diameter of the right forging 5, the outer diameter of the left forging 4 is smaller than the outer diameter of the right forging 5, a discharge gap 9 is formed between the outer side wall of the left forging 4 and the inner side wall of the outer sleeve 11 as well as between the outer supporting ring 7 and the outer insulating pad 8, and a plurality of convex discharge tips 41 are arranged on the outer side wall of the left forging 4 in the discharge gap 9.

The left forging 4 and the right forging 5 are isolated, contacted and insulated through the inner insulating pad 6 and the outer insulating pad 8, the concave sealing ring 61 is positioned between the inner insulating pad 6 and the outer insulating pad 8, the inner insulating pad 6 can be sealed, namely the left forging 4 and the right forging 5 can be sealed, and the insulating and sealing effects of the left forging 4 and the right forging 5 are realized;

discharge gaps 9 are formed between the outer side wall of the left forging 4, the inner side wall of the outer sleeve 11, the outer supporting ring 7 and the outer insulating pad 8, overvoltage and static electricity can be released, the safety performance of the joint is improved, the breakdown of the inner insulating pad 6 and the outer insulating pad 8 can be avoided, and the insulating protection capability of the joint is improved.

One end that shell 1 was kept away from to left connecting pipe 2 extends to the outside of shell 1 and installs left flange 21, the one end that shell 1 was kept away from to right connecting pipe 3 extends to the outside of shell 1 and installs right flange 31, left flange 21 and right flange 31 are all fixed on shell 1, left flange 21 and right flange 31 are used for connecting the outside pipeline, left flange 21 and right flange 31 are fixed at the both ends of shell 1, it is sealed that left connecting pipe 2 and right connecting pipe 3 and left forging 4 and right forging 5 all are located shell 1, can slow down outer support ring 7 and the ageing speed of outer insulating pad 8, increase the life who connects.

One end of the left forging 4, which is far away from the right forging 5, is tightly abutted to the left connecting pipe 2, one end of the right forging 5, which is far away from the left forging 4, is tightly abutted to the right connecting pipe 3, the middle section inner wall of the shell 1 is filled with the insulating filler 12, the insulating filler 12 is respectively positioned between the middle section inner walls of the left forging 4 and the shell 1 and between the middle section inner walls of the right forging 5 and the shell 1, the left connecting pipe 2 and the left forging 4 are tightly abutted and are insulated and sealed by the insulating filler 12, the right connecting pipe 3 and the right forging 5 are tightly abutted and are insulated and sealed by the insulating filler 12, the phenomenon that substances in a pipeline leak out to the shell 1 can be avoided, the electric spark generated in the discharge gap 9 can be prevented from leaking to the pipeline, and the safety protection capability and the sealing capability of the joint are improved.

The utility model discloses when using, connect oil gas system pipeline respectively with left flange 21 and right flange 31, produce static or when leading to the interior voltage increase of pipeline because of the thunderbolt pipe-line system because of flowing friction in the oil gas metal pipeline, through the wall of internal insulation pad 6 and external insulation pad 8, avoid anterior segment pipeline voltage transmission to back end pipeline, can the transmission of even separation voltage, avoid producing the influence or forming the stack with follow-up pipeline to follow-up pipeline, when oil gas system's metal pipeline goes up voltage great, overvoltage discharges from discharge point 41 in discharge gap 9, avoid overvoltage to puncture internal insulation pad 6 and external insulation pad 8 and lead to insulating inefficacy, further increase the insulating protective ability who connects, and can restrain the electric spark in discharge gap 9, avoid it to produce the conflagration danger, the protection is more reliable, safety.

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. Flange type insulating joint comprises a shell (1) and is characterized in that the diameter of the middle section of the inner wall of the shell (1) is larger than the diameters of two ends, a left connecting pipe (2) and a right connecting pipe (3) are fixedly inserted into the two ends of the shell (1) respectively, a left forging piece (4) and a right forging piece (5) are installed in the middle section of the shell (1) respectively, an outer supporting ring (7) is sleeved on the left forging piece (4), an inner insulating pad (6) is installed between the left forging piece (4) and the right forging piece (5) in a clamping mode, a concave sealing ring (61) is sleeved on the outer side wall of the inner insulating pad (6), an outer insulating pad (8) is sleeved on the outer side wall of the concave sealing ring (61), an outer sleeve (11) is installed on the inner wall of the middle section area of the shell (1), and the inner wall of the outer sleeve (11) abuts against the outer side wall of the outer supporting ring (7), the outer insulating pad (8) and the outer side wall of the right forging piece (5) respectively, discharge gap (9) are formed between the outer side wall of left forging (4) and the inner side wall of jacket (11) and between outer support ring (7) and outer insulating pad (8), left forging (4) is located and is equipped with a plurality of bellied most advanced (41) that discharge on the outer side wall in discharge gap (9).

2. The flanged insulation joint according to claim 1, characterized in that the end of the left connecting pipe (2) away from the housing (1) extends to the outside of the housing (1) and is mounted with a left flange (21), the end of the right connecting pipe (3) away from the housing (1) extends to the outside of the housing (1) and is mounted with a right flange (31), and the left flange (21) and the right flange (31) are both fixed on the housing (1).

3. The flange-type insulated joint according to claim 1, characterized in that the end of the left forging (4) remote from the right forging (5) abuts against the left connecting pipe (2), and the end of the right forging (5) remote from the left forging (4) abuts against the right connecting pipe (3).

4. The flange-type insulated joint according to claim 1, wherein the concave sealing ring (61) is in abutting contact with the left forging (4) and the right forging (5) at two sides thereof, and the outer insulating gasket (8) is in abutting contact with the left forging (4) and the right forging (5) at two sides thereof.

5. Flange insulated joint according to claim 1, characterized in that the mid-section inner wall of the housing (1) is filled with an insulating filler (12), the insulating filler (12) being located between the left forging (4) and the mid-section inner wall of the housing (1) and between the right forging (5) and the mid-section inner wall of the housing (1), respectively.

6. Flange insulated joint according to claim 1, characterized in that the outer diameter of the outer support ring (7) is equal to the outer diameter of the outer insulating pad (8) and to the outer diameter of the right forging (5), the outer diameter of the left forging (4) being smaller than the outer diameter of the right forging (5).