CN205405204U - A pipe network pressure alarm system that descends fast for natural gas long -distance transport pipe - Google Patents
A pipe network pressure alarm system that descends fast for natural gas long -distance transport pipe Download PDFInfo
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- CN205405204U CN205405204U CN201620152788.2U CN201620152788U CN205405204U CN 205405204 U CN205405204 U CN 205405204U CN 201620152788 U CN201620152788 U CN 201620152788U CN 205405204 U CN205405204 U CN 205405204U
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Abstract
The utility model relates to a pipe network pressure alarm system that descends fast for natural gas long -distance transport pipe, including a N pressure transmitter, a N communications facilities, a N the control unit, a N actuating mechanism, alarm unit, divide into the N section with long distance pipeline, N is more than or equal to 1's integer, sets up a pressure transmitter, an actuating mechanism, a control unit, a communications facilities on every section long distance pipeline, and pressure transmitter, actuating mechanism are connected with the control unit, and the control unit and communications facilities are connected, and communications facilities is connected with the alarm unit. The advantage is: utilizing pressure transmitter to gather the pipeline pressure of corresponding long distance pipeline section in real time, can in time discovering pressure variation and then discover the leakage and the condition such as the position of judgement emergence, degree, through alarm unit, communications facilities, the control unit's communicate with connection, remote control natural gas transfer line actuating mechanism in time closes leakage pipeline section and maintains.
Description
Technical field
This utility model relates to a kind of ductwork pressure rapid decrease warning system for Gao Long-distance Transmission Pipeline.
Background technology
Along with widely using of natural gas, the SCADA system of Gao Long-distance Transmission Pipeline is had higher requirement.In order to ensure the stable operation of Gao Long-distance Transmission Pipeline, SCADA system needs find the leakage of pipeline in time and judge the situations such as the position of leakage, degree.Gao Long-distance Transmission Pipeline can arrange several actuator room, when long-distance transport pipes leakage occurs, stop the supple of gas or steam maintenance time can remote switch actuator, reduce the harm that causes of leakage, it is ensured that the stable operation of long-distance transport pipes.Traditional Natural Gas Pipeline with SCADA System finds the function of leakage generation, discriminatory analysis leak position and leakiness, the only function of remote switch actuator in time.The generation of natural gas leaking is only artificially found in conventional line walking process by patrolman, and the section scope being responsible for due to patrolman extensively can not find the leakage of pipeline in time, and the stable operation of pipeline is very unfavorable.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this utility model is to provide a kind of ductwork pressure rapid decrease warning system for Gao Long-distance Transmission Pipeline, structure is relatively simple, leakage can be found and judge the position occurred, also remote controlled natural gas transmission pipeline actuator, improves Gao Long-distance Transmission Pipeline stable operation.
For achieving the above object, this utility model is achieved through the following technical solutions:
A kind of ductwork pressure rapid decrease warning system for Gao Long-distance Transmission Pipeline, including N number of pressure transmitter, N number of communication apparatus, N number of control unit, N number of actuator, alarm unit, long-distance transport pipes are divided into N section, N is the integer be more than or equal to 1, every section of long-distance transport pipes arrange a pressure transmitter, actuator, control unit, a communication apparatus, pressure transmitter, actuator are connected with control unit, control unit is connected with communication apparatus, and communication apparatus is connected with alarm unit；The line pressure of the corresponding long-distance transport pipes section of pressure transmitter Real-time Collection, and the information of collection is sent to control unit, after control unit processes, it is sent to alarm unit by communication apparatus；Control unit controls the operation of actuator.
Described control unit is connected by RS485 interface with communication apparatus.
Described communication apparatus and alarm unit are communicated by GPRS or cdma wireless transmission means.
Described actuator is electrical ball valve.
Compared with prior art, the beneficial effects of the utility model are:
Utilize the line pressure of the corresponding long-distance transport pipes section of pressure transmitter Real-time Collection, pressure change can be found in time and then find leakage and judge the situations such as the position of generation, degree, connected by the mutual communication of alarm unit, communication apparatus, control unit, also remote controlled natural gas transmission pipeline actuator, close blow-by tube line segment in time to keep in repair, improve Gao Long-distance Transmission Pipeline stable operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is structured flowchart of the present utility model.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is described in detail, it should be noted that enforcement of the present utility model is not limited to following embodiment.
See Fig. 1, Fig. 2, ductwork pressure rapid decrease warning system for Gao Long-distance Transmission Pipeline, including N number of pressure transmitter, N number of communication apparatus, N number of control unit, N number of actuator, alarm unit, long-distance transport pipes are divided into N section, N is the integer be more than or equal to 1, every section of long-distance transport pipes arrange a pressure transmitter, actuator, control unit, a communication apparatus, pressure transmitter, actuator are connected with control unit, control unit is connected with communication apparatus, and communication apparatus is connected with alarm unit；The line pressure of the corresponding long-distance transport pipes section of pressure transmitter Real-time Collection, and the information of collection is sent to control unit, after control unit processes, it is sent to alarm unit by communication apparatus；Control unit controls the operation of actuator.When the force value rapid decrease that multiple pressure transmitters collect, by analyzing the speed that each pressure declines, it is judged that situations such as the position of natural gas generation, degree.Alarm unit, according to the result analyzed, remotely controls actuator by communication apparatus and control unit and carries out cut-out action.
Wherein, control unit is connected by RS485 interface with communication apparatus.Communication apparatus and alarm unit are communicated by GPRS or cdma wireless transmission means.Actuator is electrical ball valve；The defeated quantity of line pressure transmitter of every segment length and the quantity of actuator match, if this section of long-distance transport pipes are longer, can arrange two or more pressure transmitters.
Alarm unit includes server, active station, and active station is connected with communication apparatus by server, and control unit is connected with communication apparatus, actuator, pressure transmitter, and ductwork pressure uploaded in real time by pressure transmitter.
Communication apparatus is the GPRSMODEM of CSE-Semaphore company；Control unit is the TBOX series of PLC of CSE-Semaphore.Server and control unit are communicated by 3G network, and described communication apparatus is the GPRSMODEM of CSE-Semaphore.
Embodiment:
Gao Long-distance Transmission Pipeline has N number of actuator, N number of pressure transmitter, N number of control unit, N number of communication apparatus, and wherein N is the integer number be more than or equal to 1.Pressure transmitter adopts 3051 pressure transmitters of Rosemount, and control unit adopts CSE-Semaphore company's T BOX series of PLC, and communication apparatus adopts the GPRSMODEM of CSE-Semaphore company.Pressure transmitter is connected with control unit.
The alarm unit of SCADA system carries out communication by wireless 3G network and each valve chamber control unit, and control unit controls and the actuator switch command that gathers on long-distance transport pipes and on off state.Wherein, the PowerEdgeR710 that server is Dell that the supervision system of alarm unit adopts, active station and engineer station all adopt the desktop computer OptiPlex9020MT of Dell.
When Gao Long-distance Transmission Pipeline due to the reasons such as other unit violence construction or contingency cause rupture and leakage time.Force value meeting rapid decrease near leakage point, it is more slow that the distance more remote force value of leakage point declines, and it is more fast that the distance more near force value of leakage point declines.SCADA system is separately provided alarm unit, is analyzed pressure drop everywhere judging, judge the position of leakage point, leakiness according to analyzing result, while sending warning, two actuators near leakage point are sent shutdown command.Situation according to pressure drop everywhere is it is estimated that the leakage rate of natural gas, and the alarm unit amount of will leak out is transferred to SCADA system, and the work carrying out repairing and emergency evacuation for operator provides reference.
When, after two actuator successful execution shutdown commands, the force value outside two actuators should no longer decline or progressively return to the value before leakage.
Claims (4)
1. the ductwork pressure rapid decrease warning system for Gao Long-distance Transmission Pipeline, it is characterized in that, including N number of pressure transmitter, N number of communication apparatus, N number of control unit, N number of actuator, alarm unit, long-distance transport pipes are divided into N section, N is the integer be more than or equal to 1, every section of long-distance transport pipes arrange a pressure transmitter, actuator, control unit, a communication apparatus, pressure transmitter, actuator are connected with control unit, control unit is connected with communication apparatus, and communication apparatus is connected with alarm unit；The line pressure of the corresponding long-distance transport pipes section of pressure transmitter Real-time Collection, and the information of collection is sent to control unit, after control unit processes, it is sent to alarm unit by communication apparatus；Control unit controls the operation of actuator.
2. a kind of ductwork pressure rapid decrease warning system for Gao Long-distance Transmission Pipeline according to claim 1, it is characterised in that described control unit is connected by RS485 interface with communication apparatus.
3. a kind of ductwork pressure rapid decrease warning system for Gao Long-distance Transmission Pipeline according to claim 1, it is characterised in that described communication apparatus and alarm unit are communicated by GPRS or cdma wireless transmission means.
4. a kind of ductwork pressure rapid decrease warning system for Gao Long-distance Transmission Pipeline according to claim 1, it is characterised in that described actuator is electrical ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620152788.2U CN205405204U (en) | 2016-02-29 | 2016-02-29 | A pipe network pressure alarm system that descends fast for natural gas long -distance transport pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620152788.2U CN205405204U (en) | 2016-02-29 | 2016-02-29 | A pipe network pressure alarm system that descends fast for natural gas long -distance transport pipe |
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| CN205405204U true CN205405204U (en) | 2016-07-27 |
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| CN201620152788.2U Active CN205405204U (en) | 2016-02-29 | 2016-02-29 | A pipe network pressure alarm system that descends fast for natural gas long -distance transport pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464850A (en) * | 2021-06-29 | 2021-10-01 | 佛燃能源集团股份有限公司 | Natural gas pipe network leakage monitoring and emergency disposal system |
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2016
- 2016-02-29 CN CN201620152788.2U patent/CN205405204U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464850A (en) * | 2021-06-29 | 2021-10-01 | 佛燃能源集团股份有限公司 | Natural gas pipe network leakage monitoring and emergency disposal system |
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