CN216520131U - Insulating flange for gas pipeline - Google Patents
Insulating flange for gas pipeline Download PDFInfo
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- CN216520131U CN216520131U CN202123139707.5U CN202123139707U CN216520131U CN 216520131 U CN216520131 U CN 216520131U CN 202123139707 U CN202123139707 U CN 202123139707U CN 216520131 U CN216520131 U CN 216520131U
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- insulating
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- sleeved
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Abstract
The utility model relates to an insulating flange for a gas pipeline, which comprises two connecting flanges and an insulating pad, wherein the connecting flanges are connected with the insulating pad through the insulating pad; one end of each of the two connecting flanges is a connecting end, the two connecting flanges are mutually attached through the connecting ends, and an insulating pad is arranged between the connecting ends on the two connecting flanges; the parts of the two connecting flanges, which are close to the connecting ends, are provided with flange plates; the flange plate is provided with a plurality of connecting through holes, and one side of each connecting through hole, which is back to the connecting end, is provided with a connecting part; the connecting through holes are all sleeved with insulating sleeves, one end of each insulating sleeve is provided with a sleeved part matched with the connecting part, and the insulating sleeves are sleeved on the connecting parts on the connecting through holes through the sleeved parts; a bolt is sleeved on the insulating sleeve, and a nut is arranged at one end of the bolt; the two connecting flanges are connected with each other through bolts on the flange plate and locked through nuts on the bolts. The insulating flange for the gas pipeline, provided by the utility model, realizes the detachable connection of the insulating sleeve and the connecting through hole, is convenient to install, and improves the safety performance of the insulating flange.
Description
Technical Field
The utility model relates to the technical field of flanges, in particular to an insulating flange for a gas pipeline.
Background
The insulating flange is a general name for a pipeline flange joint which simultaneously has the sealing performance required by a buried steel pipeline and the electric insulating performance required by the galvanic corrosion protection project. It includes a pair of steel flanges, insulating sealing member between two flanges, flange fastener and fastener insulating component and a pair of steel short pipes respectively welded with two flanges.
Chinese utility model patent with publication number CN206206852U discloses an insulating flange, including two ring flanges and insulating pad, the insulating pad is installed between two ring flanges, be provided with first ring channel and second ring channel on the terminal surface that two ring flanges and insulating pad contacted, the intussuseption of first ring channel is filled with the sealing washer. The insulating flange has better sealing performance, can not cause leakage even after long-term use, and has longer service life. However, whether the bolts connected with the two flanges are sleeved with the insulating materials is not described, so that certain potential safety hazards exist, and in addition, in the prior art, the bolt connecting holes in the flanges are usually filled with the insulating materials, so that the flange is very inconvenient to maintain or replace.
Therefore, it is desirable to provide an insulating flange for a gas pipe, which can solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an insulating flange for a gas pipeline, which realizes detachable connection of an insulating sleeve and a connecting through hole, is convenient to install and improves the safety performance of the insulating flange.
An insulating flange for a gas pipeline comprises two connecting flanges and an insulating pad;
one end of each of the two connecting flanges is a connecting end, the two connecting flanges are mutually attached through the connecting ends, and an insulating pad is arranged between the connecting ends on the two connecting flanges;
the two connecting flanges are provided with flange plates at positions close to the connecting ends, and the flange plates and the connecting flanges are of an integrally formed structure; the flange plate is provided with a plurality of connecting through holes, and one side of each connecting through hole, back to the connecting end, is provided with a connecting part; the connecting through holes are all sleeved with insulating sleeves, one end of each insulating sleeve is provided with a sleeved part matched with the connecting part, and the insulating sleeves are sleeved on the connecting parts on the connecting through holes through the sleeved parts; a bolt is sleeved on the insulating sleeve, and a nut is arranged at one end of the bolt; the two connecting flanges are connected with each other through bolts on the flange plate and locked through nuts on the bolts.
Preferably, the two connecting ends of the connecting flange are both provided with annular limiting grooves which are inwards recessed, the two sides of the insulating pad are both provided with annular protrusions matched with the annular limiting grooves, and the insulating pad is inserted into the annular limiting grooves on the two connecting ends through the annular protrusions on the two sides.
Preferably, the connecting through holes are provided with a plurality of inserting strips in an annular array mode, the outer surface of the insulating sleeve is provided with inserting slots matched with the inserting strips, and the insulating sleeve is inserted into the inserting strips on the connecting through holes through the inserting slots.
Preferably, the connecting device further comprises an annular insulating pipe, the inner wall of the annular insulating pipe is matched with the outer diameter of the connecting flange, the annular insulating pipe is sleeved between the two flange plates on the connecting flange, the two ends of the annular insulating pipe are attached to the two flange plates, a channel hole for a bolt to pass through is formed in the annular insulating pipe, the channel hole penetrates through the two ends of the annular insulating pipe, and the bolt passes through the channel hole in the annular insulating pipe and is locked through a nut.
Compared with the prior art, the insulating flange for the gas pipeline has the following advantages:
(1) the insulating sleeve is detachably inserted into the connecting through hole in the flange plate, so that the purpose of insulating the bolt is achieved, in addition, when the flange plate is maintained and replaced, the dismounting is convenient, and the safety performance is improved;
(2) simple structure, simple to operate is swift.
Drawings
Fig. 1 is a schematic structural view 1 of a connecting flange in the present embodiment;
FIG. 2 is a schematic structural view of a connecting flange in the present embodiment 2;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is a schematic structural diagram of the insulating sleeve in the present embodiment;
FIG. 5 is a schematic structural diagram of an insulating pad in the present embodiment;
fig. 6 is a schematic structural view of an insulating flange for a gas pipeline in the present embodiment;
FIG. 7 is a schematic structural view of an annular insulating tube in the present embodiment;
fig. 8 is a schematic structural view of an insulating flange for a gas pipeline, to which an annular insulating pipe is sleeved in the present embodiment.
Detailed Description
The utility model is further described below with reference to the following figures and specific examples.
The utility model relates to an insulating flange for a gas pipeline, which comprises two connecting flanges 1 and an insulating pad 10;
as shown in fig. 2, one end of each of the two connecting flanges 1 is a connecting end, the two connecting flanges 1 are attached to each other through the connecting ends, and an insulating pad 10 is arranged between the connecting ends of the two connecting flanges 1, so that an insulating effect is achieved. Preferably, as shown in fig. 1, the connecting ends of the two connecting flanges 1 are both provided with an annular limiting groove 3 which is recessed inwards, as shown in fig. 5, the two sides of the insulating pad 10 are both provided with an annular protrusion 11 which is matched with the annular limiting groove 3, and the insulating pad 10 is inserted into the annular limiting grooves 3 of the two connecting ends through the annular protrusions 11 of the two sides, so that when the two connecting flanges 1 are installed, the insulating pad 10 can be effectively prevented from sliding.
As shown in fig. 2 and 3, two connecting flanges 1 are provided with flanges 2 at positions close to the connecting ends, and the flanges 2 and the connecting flanges 1 are of an integrally formed structure; a plurality of connecting through holes 4 are formed in the flange plate 2, and a connecting part 5 is arranged on one side, back to the connecting end, of each connecting through hole 4; the connecting through holes 4 are all sleeved with insulating sleeves 7, as shown in fig. 4, one end of each insulating sleeve 7 is provided with a sleeved part 8 matched with the connecting part 5, and each insulating sleeve 7 is sleeved on the connecting part 5 on the connecting through hole 4 through the sleeved part 8; a bolt 12 is sleeved on the insulating sleeve 7, and a nut 13 is arranged at one end of the bolt 12; the two connecting flanges 1 are connected with each other through bolts 12 on the flange plate 2 and locked through nuts 13 on the bolts 12. The insulating sleeve 7 is sleeved on the connecting through hole 4, so that the dismounting and the replacement are convenient, and the insulating sleeve is very convenient to mount.
In this embodiment, a plurality of inserting strips 6 are arranged on the connecting through hole 4 in an annular array manner, slots 9 matched with the inserting strips 6 are formed in the outer surface of the insulating sleeve 7, the insulating sleeve 7 is inserted into the inserting strips 6 on the connecting through hole 4 through the slots 9, positioning is achieved, the mounting speed is further increased, and in addition, when the bolt 12 is mounted, the insulating sleeve 7 is prevented from loosening
As shown in fig. 6, when two connecting flanges 1 are installed, firstly, the insulating pad 10 is inserted into any connecting flange through the annular limiting groove 3 of the connecting end, and then the other connecting flange is moved, so that the two connecting flanges 1 are tightly attached to the insulating pad 10, and are fastened and locked through the bolts 12 and the nuts 13 on the flange plate 2, when the insulating sleeve needs to be maintained and replaced, because the insulating sleeve 7 is detachably connected with the connecting through holes 4, only the insulating sleeve 7 needs to be detached, and a new insulating sleeve can be installed.
Further, the insulating flange for the gas pipeline further comprises an annular insulating pipe 14; as shown in fig. 7, the inner wall of the annular insulating tube 14 is adapted to the outer diameter of the connecting flange 1, the annular insulating tube 14 is sleeved between the flanges 2 on the two connecting flanges 1, two ends of the annular insulating tube 14 are attached to the two flanges 2, a channel hole 15 for the bolt 12 to pass through is formed in the annular insulating tube 14, the channel hole 15 passes through two ends of the annular insulating tube 14, and as shown in fig. 8, the bolt 12 passes through the channel hole 15 in the annular insulating tube 14 and is locked by a nut 13. Thus, the bolt 12 is further insulated and protected to some extent.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (4)
1. An insulating flange for a gas pipeline is characterized by comprising two connecting flanges and an insulating pad;
one end of each of the two connecting flanges is a connecting end, the two connecting flanges are mutually attached through the connecting ends, and an insulating pad is arranged between the connecting ends on the two connecting flanges;
the two connecting flanges are provided with flange plates at positions close to the connecting ends, and the flange plates and the connecting flanges are of an integrally formed structure; the flange plate is provided with a plurality of connecting through holes, and one side of each connecting through hole, back to the connecting end, is provided with a connecting part; the connecting through holes are all sleeved with insulating sleeves, one end of each insulating sleeve is provided with a sleeved part matched with the connecting part, and the insulating sleeves are sleeved on the connecting parts on the connecting through holes through the sleeved parts; a bolt is sleeved on the insulating sleeve, and a nut is arranged at one end of the bolt; the two connecting flanges are connected with each other through bolts on the flange plate and locked through nuts on the bolts.
2. The insulating flange for the gas pipeline according to claim 1, wherein the connecting ends of the two connecting flanges are each provided with an annular limiting groove which is recessed inwards, the two sides of the insulating pad are each provided with an annular protrusion which is matched with the annular limiting groove, and the insulating pad is inserted into the annular limiting grooves of the two connecting ends through the annular protrusions of the two sides.
3. The insulating flange for the gas pipeline as claimed in claim 1 or 2, wherein a plurality of the insertion strips are arranged on the connecting through hole in an annular array manner, the outer surface of the insulating sleeve is provided with insertion slots matched with the insertion strips, and the insulating sleeve is inserted on the insertion strips on the connecting through hole through the insertion slots.
4. The insulating flange for the gas pipeline according to claim 1 or 2, further comprising an annular insulating pipe, wherein an inner wall of the annular insulating pipe is adapted to an outer diameter of the connecting flange, the annular insulating pipe is sleeved between the flanges on the two connecting flanges, two ends of the annular insulating pipe are attached to the two flanges, and a passage hole for a bolt to pass through is formed in the annular insulating pipe, the passage hole penetrates through two ends of the annular insulating pipe, and the bolt passes through the passage hole in the annular insulating pipe and is locked by a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123139707.5U CN216520131U (en) | 2021-12-14 | 2021-12-14 | Insulating flange for gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123139707.5U CN216520131U (en) | 2021-12-14 | 2021-12-14 | Insulating flange for gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216520131U true CN216520131U (en) | 2022-05-13 |
Family
ID=81498160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123139707.5U Active CN216520131U (en) | 2021-12-14 | 2021-12-14 | Insulating flange for gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216520131U (en) |
-
2021
- 2021-12-14 CN CN202123139707.5U patent/CN216520131U/en active Active
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