CN210830896U - Pipeline flange with pressure curve type leakage detection structure - Google Patents
Pipeline flange with pressure curve type leakage detection structure Download PDFInfo
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- CN210830896U CN210830896U CN201921929966.8U CN201921929966U CN210830896U CN 210830896 U CN210830896 U CN 210830896U CN 201921929966 U CN201921929966 U CN 201921929966U CN 210830896 U CN210830896 U CN 210830896U
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Abstract
The utility model discloses a pipeline flange with pressure curve type leakage detection structure, which comprises a flange plate A and a flange plate B, wherein the inner wall of the flange plate A is provided with a thread groove, a protective cylinder is screwed in the thread groove, the left part of the protective cylinder is provided with an external thread, the right part is a smooth outer wall, a built-in pressure sensor is embedded in the protective cylinder, and the left end of the pressure sensor is flush with the left end of the protective cylinder; the inner wall of the flange plate B is provided with a mounting groove, the bottom wall of the mounting groove is fixedly connected with a compression column through a spring, and the left end of the compression column is pressed against the pressure sensor; the pressure sensor is connected with a pressure transmitter, and the pressure transmitter is communicated with a remote DCS monitoring center.
Description
Technical Field
The utility model relates to a pipeline flange field, concretely relates to pipeline flange who detects structure is revealed to pressure curve type.
Background
In pipelines for high temperature, high pressure or hazardous media, leak detection of pipeline flanges is important. The traditional flange leakage detection basically focuses on in-situ inspection of distribution flow, but for small leakage, the leakage is difficult to quickly find from flow reduction, and in-situ inspection basically adopts a regular inspection system, so that 24-hour monitoring cannot be realized, and certain defects exist. Therefore, for the pipeline flanges at some key positions, a separate and reliable leakage detection structure is needed, and leakage parameters which are sensitive enough are presented to remote control DCS monitoring personnel in a curve mode for example, so that the monitoring personnel can conveniently track the leakage parameters in real time, and can timely find the leakage parameters in the early stage of flange loosening to perform flange tightening work.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a pipeline flange who detects structure is revealed to pressure curve type has.
The purpose of the utility model is realized by adopting the following technical scheme:
a pipeline flange with a pressure curve type leakage detection structure comprises a flange plate A and a flange plate B, wherein the inner wall of the flange plate A is provided with a thread groove, a protection cylinder is screwed into the thread groove, the left part of the protection cylinder is provided with an external thread, the right part of the protection cylinder is a smooth outer wall, a pressure sensor is embedded in the protection cylinder, and the left end of the pressure sensor is flush with the left end of the protection cylinder; the inner wall of the flange plate B is provided with a mounting groove, the bottom wall of the mounting groove is fixedly connected with a compression column through a spring, and the left end of the compression column is pressed against the pressure sensor; the pressure sensor is connected with a pressure transmitter, and the pressure transmitter is communicated with a remote DCS monitoring center.
Has the advantages that: this flange utilizes contact pressure sensor, can make things convenient for the staff to judge the not hard up condition with the leakage of bolt through observing the pressure curve, the monitoring of being convenient for, and simple structure, simple to operate.
Drawings
The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
FIG. 1 is an assembly view of the present invention;
fig. 2 is a cross-sectional view of the present invention after assembly.
Detailed Description
The invention will be further described with reference to the following examples.
Referring to fig. 1-2, a pipeline flange with a pressure curve type leakage detection structure includes a flange plate a and a flange plate B, a thread groove 3 is formed in an inner wall of the flange plate a, a casing 4 is screwed into the thread groove 3, an external thread 5 is formed in a left portion of the casing 4, a smooth outer wall is formed in a right portion of the casing 4, a pressure sensor 6 is embedded in the casing 4, and a left end of the pressure sensor 6 is flush with a left end of the casing 4.
More preferably, the groove diameter of the mounting groove 7 is the same as the groove diameter of the thread groove 3.
As a further preferable scheme, the pressure sensor 6 adopts an M10D contact type pressure sensor, and the rated range is 0-20 kg.
As a further preferred option, the electrical connections between pressure sensor 6 and pressure transmitter 11 pass through flange a.
As a further preferred option, the flange a and the flange B are connected by at least two bolts 14 with double nuts 13.
As a further preferable mode, the casing 4 is made of stainless steel, and the right end of the casing 4 is inserted into the mounting groove 7.
The working principle is as follows: during installation, the protective cylinder 4 with the pressure sensor 6 is firstly screwed into the threaded groove 3 until the left end of the pressure sensor 6 contacts the left wall of the threaded groove 3, then the pressing column 9 of the flange plate B is inserted into the protective cylinder 4 in an aligned mode, meanwhile, the protective cylinder 4 is inserted into the installation groove 7, the pressing column 9 is pressed against the pressure sensor 6 at the moment, then the bolt 14 is screwed in, the nuts 13 at two ends are locked, no leakage is detected after media in the pipeline circulate, the pressure logarithm on the remote DCS monitoring center 12 at the moment is recorded as an original reading, a pressure curve is generated along with the time lapse, if the pressure value is obviously reduced or is slowly reduced, the risk of bolt loosening and leakage is indicated or the leakage is caused, and workers need to perform field inspection and tighten the nut 14 to enable the pressure to be recovered to the original reading.
Consider the utility model discloses a cost is with high costs than ordinary flange joint, consequently relatively is applicable to some flange joints that need key guardianship, selects suitable occasion to use according to the condition.
Has the advantages that: this flange utilizes contact pressure sensor, can make things convenient for the staff to judge the not hard up condition with the leakage of bolt through observing the pressure curve, the monitoring of being convenient for, and simple structure, simple to operate.
Each single component itself, and software, control and other programs that may be involved in the present invention are market standard components or the prior art that can be obtained by those skilled in the art through technical manuals and common general knowledge, and do not affect the technical effect to be obtained.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A pipeline flange with a pressure curve type leakage detection structure is characterized by comprising a flange plate A and a flange plate B, wherein the inner wall of the flange plate A is provided with a thread groove, a protective cylinder is screwed into the thread groove, the left part of the protective cylinder is provided with an external thread, the right part of the protective cylinder is a smooth outer wall, a pressure sensor is embedded in the protective cylinder, and the left end of the pressure sensor is flush with the left end of the protective cylinder; the inner wall of the flange plate B is provided with a mounting groove, the bottom wall of the mounting groove is fixedly connected with a compression column through a spring, and the left end of the compression column is pressed against the pressure sensor; the pressure sensor is connected with a pressure transmitter, and the pressure transmitter is communicated with a remote DCS monitoring center.
2. A pipe flange having a pressure curve type leakage detecting structure as set forth in claim 1, wherein a groove diameter of said installation groove is the same as a groove diameter of said screw groove.
3. The piping flange having a pressure curve type leak detecting structure as claimed in claim 2, wherein said pressure sensor is a M10D type contact pressure sensor having a rated range of 0-20 kg.
4. A pipe flange having a pressure curve type leak detecting structure as claimed in claim 3, wherein an electric wiring between said pressure sensor and said pressure transmitter passes through said flange a.
5. A pipeline flange having a pressure curve type leak detection structure as claimed in claim 4, wherein the flange A and the flange B are connected by at least two bolts having double nuts.
6. The pipe flange having a pressure curve type leakage detecting structure as set forth in claim 5, wherein the casing is made of stainless steel, and a right end of the casing is inserted into the installation groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929966.8U CN210830896U (en) | 2019-11-11 | 2019-11-11 | Pipeline flange with pressure curve type leakage detection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929966.8U CN210830896U (en) | 2019-11-11 | 2019-11-11 | Pipeline flange with pressure curve type leakage detection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210830896U true CN210830896U (en) | 2020-06-23 |
Family
ID=71262318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921929966.8U Active CN210830896U (en) | 2019-11-11 | 2019-11-11 | Pipeline flange with pressure curve type leakage detection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210830896U (en) |
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2019
- 2019-11-11 CN CN201921929966.8U patent/CN210830896U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 035400 Ji Zhuang Xiang Xi Zhuang tou Cun, Dingxiang County, Xin Zhou City, Shanxi Province Patentee after: Shanxi new century Forging Co.,Ltd. Address before: 035400 Ji Zhuang Xiang Xi Zhuang tou Cun, Dingxiang County, Xin Zhou City, Shanxi Province Patentee before: Dingxiang New Century Machinery Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |