CN207992785U - A kind of desander sediment outflow pre-alarming control system - Google Patents
A kind of desander sediment outflow pre-alarming control system Download PDFInfo
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- CN207992785U CN207992785U CN201820262469.6U CN201820262469U CN207992785U CN 207992785 U CN207992785 U CN 207992785U CN 201820262469 U CN201820262469 U CN 201820262469U CN 207992785 U CN207992785 U CN 207992785U
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Abstract
The utility model provides a kind of desander sediment outflow pre-alarming control system, pressure transmitter module, upstream pressure and downstream pressure for measuring desander, and upstream pressure and downstream pressure are sent to PLC controller；PLC controller, for the pressure difference of upstream pressure and downstream pressure and preset first operting differential pressure to be compared, when pressure difference is not less than the first operting differential pressure, alarm enabling signal and electrically operated valve enabling signal are generated, and alarm enabling signal and electrically operated valve enabling signal are sent to alarm and electrically operated valve respectively；Alarm, for according to alarm enabling signal, starting alarm；Electrically operated valve start electronic according to electrically operated valve enabling signal, and the super-pressure in desander is drained.Thus, it is ensured that strainer pressure difference is in the monitoring state always；Operating personnel can be reminded to pay attention to pressure difference, prevent strainer pressure difference superpressure；The integrity for ensuring extreme condition lower filter screen ensures the normal use of desander.
Description
Technical field
The utility model is related to technical field of oil drilling equipment, and in particular to a kind of desander sediment outflow early warning control system
System.
Background technology
Desander isolates the device of foreign particle from gas and water or waste water fluid stream.Filter net type desander is the one of desander
Kind, in oil-well drilling equipment field, filter net type desander has application in underground work, for example, long celebrating underground technology
It is excessively high that operation company pressure difference has occurred since introducing filter net type desander, during being applied multiple times, and causes strainer to damage, desander
Can not normal use the problem of, since filter net type desander is commonly used to shake out and go out the liquid less middle and later periods, rarely encounter pole
The operating condition at end, therefore there is no the similar control systems under the extreme operating condition of filter net type desander both at home and abroad.
Therefore, urgent need will develop a set of desander sediment outflow pre-alarming control system, can monitor strainer pressure difference and timely in real time
Accurately manipulation desander sediment outflow prior-warning device carries out operation, and filter net type desander is solved sand production rate is too big, viscosity to reach
Under excessively high extreme operating condition, pressure difference can be more than the problem of allowing operting differential pressure, strainer is caused to damage rapidly.
Utility model content
The purpose of this utility model is to provide a kind of desander sediment outflow pre-alarming control systems, to solve existing strainer
Formula desander is not suitable with extreme operating condition problem.
To achieve the above object, the utility model provides a kind of desander sediment outflow pre-alarming control system, the desander
Sediment outflow pre-alarming control system includes：Pressure transmitter module, PLC controller, alarm and electrically operated valve；
The output end of the pressure transmitter module is connected to the input terminal of PLC controller, and the first of the PLC controller
Output end is connected to the input terminal of alarm, and the second output terminal of the PLC controller is connected to the input of the electrically operated valve
End；
The pressure transmitter module, upstream pressure and downstream pressure for measuring desander, and the upstream is pressed
Power and downstream pressure are sent to the PLC controller；
The PLC controller, for the pressure difference of the upstream pressure and the downstream pressure and preset first to work
Pressure difference is compared, and when the pressure difference is not less than first operting differential pressure, generates alarm enabling signal and electrically operated valve opens
Dynamic signal, and the alarm enabling signal and electrically operated valve enabling signal are sent to the alarm and electrically operated valve respectively；
The alarm, for according to the alarm enabling signal, starting alarm；
The electrically operated valve is started according to the electrically operated valve enabling signal, by the superelevation pressure in desander
It releases.
In one possible implementation, the PLC controller is additionally operable to, and is pressed no more than the second work in the pressure difference
When poor, Alerts Off signal and electrically operated valve shutdown signal are generated；
The alarm is closed according to the Alerts Off signal；
The electrically operated valve is closed according to the electrically operated valve shutdown signal.
In one possible implementation, the pressure transmitter module includes first pressure transmitter and second pressure
Transmitter；
The first pressure transmitter is arranged in the upstream of the desander, and the upstream for measuring the desander is pressed
Power；
The second pressure transmitter is arranged in the downstream of the desander, and the downstream for measuring the desander is pressed
Power.
In one possible implementation, the desander sediment outflow pre-alarming control system further includes：Electric machine control system,
The electric machine control system is connected with the desander；For driving the desander to work.
In one possible implementation, the desander sediment outflow pre-alarming control system further includes：Display screen；
Have on the display screen and manual control button and automatically control button, by press the manual control button or
Person automatically controls button, determines the opening ways of electrically operated valve.
In one possible implementation, when pressing automatically controls button, the display screen shows first work
Make pressure difference and second operting differential pressure.
In one possible implementation, the desander is filter net type desander.
The utility model has the following advantages that：
1, strainer pressure difference is monitored in real time by calculating the upstream and downstream data that pressure transmitter uploads, it is ensured that strainer pressure difference begins
It is in the monitoring state eventually；
2, operating personnel can be reminded to pay attention to pressure difference, prevent strainer pressure difference superpressure；
3, data remote, visualizing are shown ensure that operating personnel can not take into account pressure difference in the case of, operator on duty can be with
Remote monitoring further increases the safety of desanding operation；
4, desander sediment outflow pre-alarming control system is completed to switch in 10S dynamic according to the pressure difference control electric gate valve monitored
Make, it is ensured that the integrity of extreme condition lower filter screen ensures the normal use of desander.
Description of the drawings
Fig. 1 is desander sediment outflow pre-alarming control system structural schematic diagram provided by the utility model；
Fig. 2 is desander sediment outflow pre-alarming control system pictorial diagram provided by the utility model.
Specific implementation mode
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment 1
Fig. 1 is desander sediment outflow pre-alarming control system structural schematic diagram provided by the utility model.As shown in Figure 1, described
Desander sediment outflow pre-alarming control system includes：Pressure transmitter module 110, programmable logic controller (PLC) (Programmable
Logic Controller, PLC) controller 120, alarm 130 and electrically operated valve 140.
The output end of the pressure transmitter module 110 is connected to the input terminal of PLC controller 120, the PLC controller
120 the first output end is connected to the input terminal of alarm 130, and the second output terminal of the PLC controller 120 is connected to described
The input terminal of electrically operated valve 140.
The pressure transmitter module 110, upstream pressure and downstream pressure for measuring desander, and by the upstream
Pressure and downstream pressure are sent to the PLC controller 120.
The PLC controller 120 is used for the pressure difference and preset first work of the upstream pressure and the downstream pressure
It is compared as pressure difference, when the pressure difference is not less than first operting differential pressure, generates alarm enabling signal, and by the report
Alert enabling signal is sent to the alarm 130 and is respectively sent to the alarm enabling signal and electrically operated valve enabling signal
The alarm 130 and electrically operated valve 140.
The alarm 130, for according to the alarm enabling signal, starting alarm.
The electrically operated valve 140 is started according to the electrically operated valve enabling signal, by the super-pressure in desander
It drains.The electrically operated valve starts in 10s, it is ensured that the integrity of extreme condition lower filter screen ensures that the normal of desander makes
With.
Further, the PLC controller 120 is additionally operable to, and when the pressure difference is not more than the second operting differential pressure, generates report
Alert shutdown signal and electrically operated valve shutdown signal；The alarm is closed according to the Alerts Off signal；It is described electronic
Valve is closed according to the electrically operated valve shutdown signal.
Wherein, the first operting differential pressure is maximum allowable operting differential pressure, and maximum allowable operting differential pressure, i.e. electrically operated valve open pressure
Difference, the second operting differential pressure are that electrically operated valve closes pressure difference.For example, the first operting differential pressure can be 200psi, the second operting differential pressure
Can be 100psi.
Further, the pressure transmitter module includes first pressure transmitter and second pressure transmitter；
The first pressure transmitter is arranged in the upstream of the desander, and the upstream for measuring the desander is pressed
Power；
The second pressure transmitter is arranged in the downstream of the desander, and the downstream for measuring the desander is pressed
Power.Strainer pressure difference is monitored by calculating the upstream and downstream data that pressure transmitter uploads in real time, it is ensured that strainer pressure difference is always as a result,
It is in the monitoring state；Operating personnel can be reminded to pay attention to pressure difference, prevent strainer pressure difference superpressure.
Further, the desander sediment outflow pre-alarming control system further includes：Electric machine control system,
The electric machine control system is connected with the desander；For driving the desander to work.
Further, the desander sediment outflow pre-alarming control system further includes：Display screen；
Have on the display screen and manual control button and automatically control button, by press the manual control button or
Person automatically controls button, determines the opening ways of electrically operated valve.
Further, when pressing automatically controls button, the display screen shows first operting differential pressure and described
Two operting differential pressures.Data remote, visualizing are shown as a result, ensure that operating personnel can not take into account pressure difference in the case of, watch
Member can further increase the safety of desanding operation with remote monitoring.
Further, which is characterized in that the desander is filter net type desander.
Embodiment 2
Fig. 2 is desander sediment outflow pre-alarming control system pictorial diagram provided by the utility model.Including：1. first pressure pick-up
Device 1, imported valve 2, the filter cylinder 3 of desander, the strainer 4 of desander, second pressure transmitter 5, explosion-proof light (power) distribution
Case 6, sediment outflow valve 7 and electrically operated valve 8.
First on a display screen, manual setting desander starting differential pressure is 200psi, and closing pressure difference is 100psi.Select calibration
Good Jing Du≤1%psi geostatic pressures meters (calibration).It helps calibration starting differential pressure and closes the accuracy of pressure difference.
It by water pressure testing, is suppressed from entrance, when pressure reaches 200psi, desander sediment outflow prior-warning device is alarmed, and 10s
Interior electrically operated valve is opened.Then it is depressured, when pressure difference reaches 100psi, electrically operated valve is completed to close in 10.Alarm simultaneously
Stop alarm.The above experiment 3 times repeatedly, it is as a result identical.
Thus, it is possible to determine desander sediment outflow prior-warning device warning device starting differential pressure 200psi, pressure difference 100psi is closed,
Switch time≤10s, alarm pressure difference 200psi.
Embodiment 3
In this embodiment, third operting differential pressure can also be set, PLC controller 120, by the upstream pressure and described
The pressure difference of downstream pressure and preset first operting differential pressure are compared, when the pressure difference is not less than first operting differential pressure
When, alarm enabling signal is generated, and the alarm enabling signal is sent to the alarm 130, is not less than in the pressure difference
When the third operting differential pressure, electrically operated valve enabling signal is generated, and the alarm enabling signal and electrically operated valve are started into letter
Number it is sent to the electrically operated valve 140.
The alarm 130, for according to the alarm enabling signal, starting alarm.
The electrically operated valve 140 starts desander, so that the desander starts according to the electrically operated valve enabling signal
Work.The electrically operated valve starts in 10s, it is ensured that the integrity of extreme condition lower filter screen ensures the normal use of desander.
Further, the PLC controller 120 is additionally operable to, and when the pressure difference is not more than the second operting differential pressure, generates report
Alert shutdown signal and electrically operated valve shutdown signal；The alarm is closed according to the Alerts Off signal；It is described electronic
Valve is closed according to the electrically operated valve shutdown signal.
Wherein, the first operting differential pressure is maximum allowable operting differential pressure, and maximum allowable operting differential pressure, i.e. electrically operated valve open pressure
Difference, the second operting differential pressure are that electrically operated valve closes pressure difference, and third operting differential pressure is dangerous pressure difference, wherein third operting differential pressure is big
In the first operting differential pressure, the first operting differential pressure is more than third operting differential pressure.
For example, when pressure difference is close to maximum allowable operting differential pressure, PLC controller generates alarm signal, and indicating alarm is opened
Begin to alarm, prompts operating personnel to carry out sediment outflow or the cylinder of falling sand with this, (360PSI is about if pressure difference continues to rise to dangerous values
2.5MPa), PLC controller generates electrically operated valve enabling signal, and electrically operated valve quickly opens (about 10S) and carries out sediment outflow operation to drop
Low voltage difference achievees the purpose that protect strainer.When seating nipple pressure difference is reduced to no more than the second operting differential pressure, PLC controller is assigned
Electrically operated valve and alarm are closed in instruction.
Strainer pressure difference is monitored by calculating the upstream and downstream data that pressure transmitter uploads in real time, it is ensured that strainer pressure as a result,
Difference is in the monitoring state always；Operating personnel can be reminded to pay attention to pressure difference, prevent strainer pressure difference superpressure；Data remote, visualizing
In the case that display ensure that operating personnel can not take into account pressure difference, operator on duty can further increase desanding with remote monitoring
The safety of operation；
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention belong to what this was claimed
Range.
Claims (7)
1. a kind of desander sediment outflow pre-alarming control system, which is characterized in that the desander sediment outflow pre-alarming control system includes：Pressure
Power transmitter module, PLC controller, alarm and electrically operated valve；
The output end of the pressure transmitter module is connected to the input terminal of PLC controller, the first output of the PLC controller
End is connected to the input terminal of alarm, and the second output terminal of the PLC controller is connected to the input terminal of the electrically operated valve；
The pressure transmitter module, upstream pressure and downstream pressure for measuring desander, and by the upstream pressure and
Downstream pressure is sent to the PLC controller；
The PLC controller is used for the pressure difference and preset first operting differential pressure of the upstream pressure and the downstream pressure
It is compared, when the pressure difference is not less than first operting differential pressure, generates alarm enabling signal and electrically operated valve starts letter
Number, and the alarm enabling signal and electrically operated valve enabling signal are sent to the alarm and the electrically operated valve respectively；
The alarm, for according to the alarm enabling signal, starting alarm；
The electrically operated valve is started according to the electrically operated valve enabling signal, and the super-pressure in desander is drained.
2. desander sediment outflow pre-alarming control system according to claim 1, which is characterized in that the PLC controller is also used
In, when the pressure difference is not more than the second operting differential pressure, generation Alerts Off signal and electrically operated valve shutdown signal；
The alarm is closed according to the Alerts Off signal；
The electrically operated valve is closed according to the electrically operated valve shutdown signal.
3. desander sediment outflow pre-alarming control system according to claim 1, which is characterized in that the pressure transmitter module
Including first pressure transmitter and second pressure transmitter；
The first pressure transmitter is arranged in the upstream of the desander, the upstream pressure for measuring the desander；
The second pressure transmitter is arranged in the downstream of the desander, the downstream pressure for measuring the desander.
4. desander sediment outflow pre-alarming control system according to claim 1, which is characterized in that the desander sediment outflow early warning
Control system further includes：Electric machine control system,
The electric machine control system is connected with the desander；For driving the desander to work.
5. desander sediment outflow pre-alarming control system according to claim 1, which is characterized in that the desander sediment outflow early warning
Control system further includes：Display screen；
There is manual control button on the display screen and automatically control button, by the pressing manual control button or certainly
Dynamic control button, determines the opening ways of electrically operated valve.
6. desander sediment outflow pre-alarming control system according to claim 5, which is characterized in that when pressing automatically controls button
When, the display screen shows first operting differential pressure, the second operting differential pressure, wherein the first operting differential pressure is more than the second work
Pressure difference.
7. desander sediment outflow pre-alarming control system according to claim 1, which is characterized in that the desander is filter net type
Desander.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820262469.6U CN207992785U (en) | 2018-02-22 | 2018-02-22 | A kind of desander sediment outflow pre-alarming control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820262469.6U CN207992785U (en) | 2018-02-22 | 2018-02-22 | A kind of desander sediment outflow pre-alarming control system |
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| Publication Number | Publication Date |
|---|---|
| CN207992785U true CN207992785U (en) | 2018-10-19 |
Family
ID=63824718
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| CN201820262469.6U Active CN207992785U (en) | 2018-02-22 | 2018-02-22 | A kind of desander sediment outflow pre-alarming control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115981385A (en) * | 2023-02-10 | 2023-04-18 | 浙江安喆计量检测技术有限公司 | System for monitoring and controlling pressure balance of primary and secondary insulation layers of LNG ship |
-
2018
- 2018-02-22 CN CN201820262469.6U patent/CN207992785U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115981385A (en) * | 2023-02-10 | 2023-04-18 | 浙江安喆计量检测技术有限公司 | System for monitoring and controlling pressure balance of primary and secondary insulation layers of LNG ship |
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