CN209445069U - A kind of gas pipeline valve chamber main pipeline booster monitoring, alarming and interlock protection device - Google Patents
A kind of gas pipeline valve chamber main pipeline booster monitoring, alarming and interlock protection device Download PDFInfo
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- CN209445069U CN209445069U CN201822127004.2U CN201822127004U CN209445069U CN 209445069 U CN209445069 U CN 209445069U CN 201822127004 U CN201822127004 U CN 201822127004U CN 209445069 U CN209445069 U CN 209445069U
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Abstract
The utility model discloses a kind of gas pipeline valve chamber main pipeline booster monitoring, alarming and interlock protection devices, comprising: is provided with the main pipeline of threeway A, block valve for pipeline and threeway B；Impulse pipeline A and impulse pipeline B is arranged on by-pass line for the by-pass line that both ends are connect with threeway A and threeway B respectively；One end of impulse pipeline A is connect with by-pass line upstream, and the other end is connect with block valve for pipeline；One end of impulse pipeline B and by-pass line downstream connection, the other end are connect with block valve for pipeline；Several pressure-detecting devices are respectively set on impulse pipeline A and impulse pipeline B, several pressure-detecting devices and block valve for pipeline are connect via junction box with controller, and controller calculates on-site test value and judges whether to take safeguard measure.The utility model has the following beneficial effects: generation and the alarm of main pipeline booster in time, can be monitored accurately, and safeguard measure isolation emergency pipe line and yard are taken, improves gas pipeline and periphery personnel and property safety.
Description
Technical field
The utility model relates to pipe-line system technical fields, in particular to a kind of gas pipeline valve chamber main pipeline
Booster monitoring, alarming and interlock protection device.
Background technique
During conduit running, due to corrosive pipeline, damage from third-party, construction quality etc., cause natural gas tube
Road rupture is broken and causes natural gas leakage, finally ferments olefiant gas pipe safety accident, causes very to society and enterprise
Big adverse effect, more the security of the lives and property to the pipeline people, which is brought, seriously threatens.If grasped not in time
Whether pipeline the relevant informations such as cracks or fractures, and is handled in time, will lead to damage sequence and constantly aggravate, causes serious ring
Border pollution and the great person and property loss.
The gas pipeline as caused by corrosive pipeline, damage from third-party, construction quality etc. is revealed, since natural gas is
Compressible fluid, previous engineering can not carry out leakage monitoring with the method for oil pipeline, and it is different in appearance to cannot achieve transportation system
Emergency cut-off and station in normal situation emergency shutdown function out of the station cause human eye ought only occur observable natural
When the major accidents such as gas leakage, fire or explosion, relevant issues could be found.
Utility model content
To solve the above problems, the purpose of this utility model is to provide a kind of main pipeline for making gas pipeline valve chamber is quick-fried
Pipe monitoring, alarming speed more in time, the higher device of accuracy rate, improve gas pipeline and periphery personnel and property safety.
The utility model provides a kind of gas pipeline valve chamber main pipeline booster monitoring, alarming and interlock protection device, should
Device includes: main pipeline, sets gradually threeway A, block valve for pipeline and threeway B thereon, and the block valve for pipeline passes through electricity
Cable is connect with junction box；
By-pass line, both ends are connect with the threeway A and the threeway B respectively, and valve is arranged on the bypass duct,
And it is connect with high pressure blow-down pipe；
Impulse pipeline A, one end are connect with the by-pass line upstream, and the other end is connect with the block valve for pipeline, institute
It states and several pressure-detecting devices is set on impulse pipeline A, several pressure-detecting devices pass through gauge valve and the pressure guiding pipe respectively
Line A connection, and several pressure-detecting devices pass through cable respectively and connect with the junction box；
Impulse pipeline B, one end are connect with the block valve for pipeline, the other end and the by-pass line downstream connection；Institute
It states and several pressure-detecting devices is set on impulse pipeline B, several pressure-detecting devices pass through gauge valve and the pressure guiding pipe respectively
Line B connection, and several pressure-detecting devices pass through cable respectively and connect with the junction box；
Controller, input terminal are electrically connected with the junction box, the controller output end and the block valve for pipeline
Executing agency's connection.
It is further improved as the utility model, several gauge valves pass through instrument root valve and the impulse pipeline respectively
A is connected with the impulse pipeline B.
It is further improved as the utility model, the high pressure blow-down pipe passes through flanged (FLGD) valve and the bypass
Pipeline connection.
It is further improved as the utility model, the block valve for pipeline is gas-oil valve.
It is further improved as the utility model, several pressure-detecting devices are high accuracy pressure transmitter.
It is further improved as the utility model, valve B and valve C is respectively set in the upstream and downstream of the by-pass line.
It further being improved as the utility model, the impulse pipeline A is connect by valve E with the by-pass line,
The impulse pipeline A is connect by valve F with the block valve for pipeline；The impulse pipeline B passes through valve G and the shunt valve
Line connection, the impulse pipeline B are connect by valve H with the block valve for pipeline.
It is further improved as the utility model, emptying is set on the by-pass line between the valve B and valve A
Pipe, the blow-down pipe are connect by valve J with the by-pass line.
It is further improved as the utility model, is respectively set two on the impulse pipeline A and the impulse pipeline B
The pressure-detecting device.
It is further improved as the utility model, the valve B and the valve C are ball valve.
The utility model has the following beneficial effects: by being arranged by-pass line on gas pipeline valve chamber main pipeline, and
Pressure-detecting device is installed on by-pass line and monitors piping loss rate value, when the continuous certain number of super setting value of pressure drop rate
Afterwards, controller control warning device issues the block valve for pipeline of upstream and downstream at alarm and interlocking close booster, and emergency pipe line is isolated
With yard, achieve the purpose that the generation of the main pipeline booster of monitoring gas pipeline valve chamber promptly and accurately and alarm, and takes
Emergency pipe line and yard is isolated in safeguard measure, improves gas pipeline and periphery personnel and property safety.
Detailed description of the invention
Fig. 1 is a kind of gas pipeline valve chamber main pipeline booster monitoring, alarming described in the utility model embodiment and chain
The structural schematic diagram of protective device；
In figure,
1, main pipeline；2, threeway A；3, block valve for pipeline；4, threeway B；5, by-pass line；6, impulse pipeline A；7, impulse
Pipeline B；8, several pressure-detecting devices；9, gauge valve；10, instrument root valve；11, junction box；12, valve A；13, band flange
Valve；14, valve B；15, valve C；16, valve E；17, valve G；18, valve F；19, valve H；20, valve J.
Specific embodiment
Below by specific embodiment and in conjunction with attached drawing, the utility model is further described in detail.
As shown in Figure 1, a kind of gas pipeline valve chamber main pipeline booster monitoring, alarming described in the utility model embodiment
Device, the device include: main pipeline 1, set gradually threeway A 2, block valve for pipeline 3 and threeway B 4 thereon, and route is truncated
Valve 3 is connect by cable with junction box 11；
By-pass line 5, both ends are connect with threeway A 2 and threeway B 4 respectively, are arranged valve on bypass duct 5, and with height
Press blow-down pipe connection；
Impulse pipeline A 6, one end is connect with the upstream of by-pass line 5, and the other end is connect with block valve for pipeline 3, impulse
Several pressure-detecting devices 8 are set on pipeline A 6, and several pressure-detecting devices 8 pass through gauge valve 9 and impulse pipeline A 6 respectively
Connection, and several pressure-detecting devices 8 are connect by cable with junction box 11 respectively；
Impulse pipeline B 7, one end is connect with block valve for pipeline 3, the downstream connection of the other end and by-pass line 5；Impulse
Several pressure-detecting devices 8 are set on pipeline B 7, and several pressure-detecting devices 8 pass through gauge valve 9 and impulse pipeline B 7 respectively
Connection, and several pressure-detecting devices 8 are connect by cable with junction box 11 respectively；
Controller, input terminal are connect with junction box's electricity 11, and the controller output end is held with the block valve for pipeline
The connection of row mechanism.
Further, several gauge valves 9 are connected by instrument root valve 10 and impulse pipeline A 6 and impulse pipeline B 7 respectively
It connects.
Further, high pressure blow-down pipe is connect by flanged (FLGD) valve 13 with by-pass line 5.
Further, block valve for pipeline 3 is gas-oil valve.
Further, several pressure-detecting devices 8 are high accuracy pressure transmitter.
Further, valve B 14 and valve C 15 is respectively set in the upstream and downstream of by-pass line 5, and the setting of valve B 14 is being drawn
Between pressure pipeline A 6 and the junction and valve A 12 of by-pass line 5, valve C 15 is arranged in impulse pipeline B 7 and shunt valve
Between the junction and valve A 12 of line 5.
Further, impulse pipeline A 6 is connect by valve E 16 with by-pass line 5, and impulse pipeline A 6 passes through valve F
18 connect with block valve for pipeline 3；Impulse pipeline B 7 is connect by valve G17 with by-pass line 5, and impulse pipeline B 7 passes through valve
H 19 is connect with block valve for pipeline 3.
Further, blow-down pipe is set on the by-pass line 5 between valve B 14 and valve A 12, blow-down pipe passes through valve
J 20 is connect with by-pass line 5.
Further, two pressure-detecting devices 8 are respectively set on impulse pipeline A 6 and impulse pipeline B 7.
Further, valve B 14 and valve C 15 is ball valve.
When specific works:
When being full of high-pressure natural gas in gas pipeline, if some place cracks or fractures, gas pipeline valve chamber
Main pipeline booster monitoring, alarming and interlock protection device can be reduced rapidly according to the pressure of upstream and downstream pipeline judges that pipeline is
It is no to crack or fracture, while the Position Approximate of leakage point can be positioned using the time difference of upstream and downstream.In use, starting a kind of gas transmission
The pressure drop rate critical value of device, the critical value is arranged in pipeline valve chamber main pipeline booster monitoring, alarming and interlock protection device
Judge reference value as judging one that whether pipeline rupture, when at one continuously using the pressure in the period, on impulse pipeline
The pressure value of detection arrangement monitors is simultaneously fed back to controller, and controller carries out calculating analysis to pressure signal, if pressure value continues
Decline, and fall off rate be greater than preset pressure drop rate critical value and keep continuous downward trend for a period of time after, control
Device processed controls alarm equipment alarm and starts insulation blocking measure, closes the route truncation of gas pipeline valve chamber main pipeline upstream and downstream
Emergency pipe line is isolated in valve.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of gas pipeline valve chamber main pipeline booster monitoring, alarming and interlock protection device, which is characterized in that the device packet
It includes:
Main pipeline (1) sets gradually threeway A (2), block valve for pipeline (3) and threeway B (4), and the block valve for pipeline thereon
(3) it is connect by cable with junction box (11)；
By-pass line (5), both ends are connect with the threeway A (2) and the threeway B (4) respectively, on the by-pass line (5)
It is arranged valve A (12), and is connect with high pressure blow-down pipe；
Impulse pipeline A (6), one end are connect with the by-pass line (5) upstream, and the other end and the block valve for pipeline (3) are even
It connects, is arranged several pressure-detecting devices (8) on the impulse pipeline A (6), several pressure-detecting devices (8) pass through instrument respectively
Valve (9) is connect with the impulse pipeline A (6), and several pressure-detecting devices (8) pass through cable and the junction box (11) respectively
Connection；
Impulse pipeline B (7), one end are connect with the block valve for pipeline (3), and the other end and the by-pass line (5) downstream connect
It connects；It is arranged several pressure-detecting devices (8) on the impulse pipeline B (7), several pressure-detecting devices (8) pass through instrument respectively
Valve (9) is connect with the impulse pipeline B (7), and several pressure-detecting devices (8) pass through cable and the junction box (11) respectively
Connection；
Controller, input terminal are electrically connected with the junction box (11), the controller output end and the block valve for pipeline (3)
Executing agency connection.
2. a kind of gas pipeline valve chamber main pipeline booster monitoring, alarming according to claim 1 and interlock protection device,
It is characterized in that, several gauge valves (9) pass through instrument root valve (10) and the impulse pipeline A (6) and the pressure guiding pipe respectively
Line B (7) connection.
3. a kind of gas pipeline valve chamber main pipeline booster monitoring, alarming according to claim 1 and interlock protection device,
It is characterized in that, the high pressure blow-down pipe is connect by flanged (FLGD) valve (13) with the by-pass line (5).
4. a kind of gas pipeline valve chamber main pipeline booster monitoring, alarming according to claim 1 and interlock protection device,
It is characterized in that, the block valve for pipeline (3) is gas-oil valve.
5. a kind of gas pipeline valve chamber main pipeline booster monitoring, alarming according to claim 1 and interlock protection device,
It is characterized in that, several pressure-detecting devices (8) are high accuracy pressure transmitter.
6. a kind of gas pipeline valve chamber main pipeline booster monitoring, alarming according to claim 1 and interlock protection device,
It is characterized in that, valve B (14) and valve C (15) is respectively set in the upstream and downstream of the by-pass line (5).
7. a kind of gas pipeline valve chamber main pipeline booster monitoring, alarming according to claim 1 and interlock protection device,
It is characterized in that, the impulse pipeline A (6) is connect by valve E (16) with the by-pass line (5), the impulse pipeline A
(6) it is connect by valve F (18) with the block valve for pipeline (3)；The impulse pipeline B (7) passes through valve G (17) and the side
Road pipeline (5) connection, the impulse pipeline B (7) are connect by valve H (19) with the block valve for pipeline (3).
8. a kind of gas pipeline valve chamber main pipeline booster monitoring, alarming according to claim 6 and interlock protection device,
It is characterized in that, blow-down pipe is arranged on by-pass line (5) between the valve B (14) and valve A (12), the blow-down pipe is logical
Valve J (20) is crossed to connect with the by-pass line (5).
9. a kind of gas pipeline valve chamber main pipeline booster monitoring, alarming according to claim 1 and interlock protection device,
It is characterized in that, two pressure-detecting devices are respectively set on the impulse pipeline A (6) and the impulse pipeline B (7)
(8)。
10. a kind of gas pipeline valve chamber main pipeline booster monitoring, alarming according to claim 6 and interlock protection device,
It is characterized in that, the valve B (14) and the valve C (15) are ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822127004.2U CN209445069U (en) | 2018-12-18 | 2018-12-18 | A kind of gas pipeline valve chamber main pipeline booster monitoring, alarming and interlock protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822127004.2U CN209445069U (en) | 2018-12-18 | 2018-12-18 | A kind of gas pipeline valve chamber main pipeline booster monitoring, alarming and interlock protection device |
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| Publication Number | Publication Date |
|---|---|
| CN209445069U true CN209445069U (en) | 2019-09-27 |
Family
ID=68014679
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822127004.2U Active CN209445069U (en) | 2018-12-18 | 2018-12-18 | A kind of gas pipeline valve chamber main pipeline booster monitoring, alarming and interlock protection device |
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| CN (1) | CN209445069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386738B (en) * | 2018-12-18 | 2023-11-14 | 中国石油天然气集团有限公司 | Pipe explosion monitoring alarm and interlocking protection device for valve chamber main pipeline of gas pipeline |
-
2018
- 2018-12-18 CN CN201822127004.2U patent/CN209445069U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386738B (en) * | 2018-12-18 | 2023-11-14 | 中国石油天然气集团有限公司 | Pipe explosion monitoring alarm and interlocking protection device for valve chamber main pipeline of gas pipeline |
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