CN209196557U - A kind of oil pipeline variable frequency pump combines regulator with regulating valve - Google Patents
A kind of oil pipeline variable frequency pump combines regulator with regulating valve Download PDFInfo
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- CN209196557U CN209196557U CN201821803369.6U CN201821803369U CN209196557U CN 209196557 U CN209196557 U CN 209196557U CN 201821803369 U CN201821803369 U CN 201821803369U CN 209196557 U CN209196557 U CN 209196557U
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Abstract
The utility model discloses a kind of oil pipeline variable frequency pumps to combine regulator with regulating valve, include: process pipelines, sets first pressure transmitter, first pressure indicator, the first process gate valve, second pressure transmitter, second pressure indicator, variable-frequency control pump, third pressure indicator, third pressure transmitter, the second process gate valve, the 4th pressure transmitter, the 4th pressure indicator, the first technique ball valve, the 5th pressure indicator, regulating valve, the 6th pressure indicator, the second technique ball valve and the 5th pressure transmitter thereon；By-pass line, one end are connected between first pressure indicator and the first process gate valve, and the other end is connected between the second process gate valve and the 4th pressure transmitter, are connected with check-valves along oil product flow direction；Pressure control device comprising two control assemblies of manual/auto control variable-frequency control pump and regulating valve.The utility model has the beneficial effects that improving continuity, accuracy, agility, stability and the safety of pumping plant pressure control out of the station.
Description
Technical field
The utility model relates to oil pipeline technical fields, in particular to a kind of oil pipeline variable frequency pump and adjust
Valve combines regulator.
Background technique
In oil pipeline yard, for meet pipeline operate normally need to flow to oil pipeline and pressure carry out detection and
Control.Two methods were mainly used for the regulative mode of the pressure out of the station of pumping plant in the past: method one, according to pressure out of the station
Force snesor, the revolving speed of variable-frequency control pump is adjusted by two-way PID controller out of the station, to control pumping plant inlet and outlet pressure
Power；Method two adjusts main pump outlet regulating valve by two-way PID controller out of the station according to pressure sensor out of the station
Aperture, to control pumping plant inlet and outlet pressure.
With popularizing for converter technology, a large amount of uses of variable-frequency control pump, more and more oil transportation yards are equipped with change
Two kinds of voltage adjusting devices of frequency governor impeller and regulating valve.If simply the whole of the two kinds of voltage adjusting devices PID control that comes into operation will be caused
System it is unstable, identical pressure set points can make two different voltage adjusting devices interfere with each other vibration.Currently, common solution
When certainly method is that variable-frequency control pump operates in the control of PID pressure, the manual control of valve position of regulating valve；And regulating valve PID pressure controls
When, the manual revolving speed control of variable-frequency control pump.In variable-frequency control pump and regulating valve both voltage adjusting devices, only one can be thrown
It is controlled with PID pressure.
This method has the disadvantage in that the range of one, variable-frequency control pump progress PID pressure control is smaller, only supports most
The slow-speed of revolution between maximum speed, can not the total head range to variable-frequency control pump carry out pressure regulation；Two, variable-frequency control pump drops to most
Slow-speed of revolution pressure is still excessively high, needs to manually set variable-frequency control pump in minimum speed, and regulating valve is switched to PID pressure
Control continues pressure regulation, this process can only be completed manually；Three, under the manual revolving speed control of variable-frequency control pump, regulating valve PID pressure
Power control standard-sized sheet after, pressure beat less than setting value and pump revolving speed still have surplus energy, it is necessary to manually will adjusting Vavle switching hand-operated valve position
It controls to standard-sized sheet, and variable-frequency control pump is switched into the control of PID pressure.
On the whole, variable-frequency control pump must be completed manually with regulating valve cooperation pressure regulation, time-consuming and laborious, there is switching
Operate not prompt enough and maloperation risk.
Utility model content
Combine to solve the above problems, the purpose of this utility model is to provide a kind of oil pipeline variable frequency pumps with regulating valve
Regulator, the joint Regulation Control of realization variable-frequency control pump and regulating valve, the continuity of raising pumping plant pressure control out of the station,
Accuracy, agility, stability and safety facilitate operation to run.
The utility model provides a kind of oil pipeline variable frequency pump and combines regulator with regulating valve, comprising:
Process pipelines, both ends are separately connected first flange and second flange, the first flange and the second flange
Between be disposed with first pressure transmitter, first pressure indicator, the first process gate valve, second pressure transmitter, second
Pressure indicator, variable-frequency control pump, third pressure indicator, third pressure transmitter, the second process gate valve, the 4th pressure inverting
Device, the 4th pressure indicator, the first technique ball valve, the 5th pressure indicator, regulating valve, the 6th pressure indicator, the second technique
Ball valve and the 5th pressure transmitter；
By-pass line, one end are connected to the process duct between the first pressure indicator and first process gate valve
On line, the by-pass line other end is connected to the process duct between second process gate valve and the 4th pressure transmitter
On line, check-valves is connected with along oil product flow direction on the by-pass line；
Pressure control device comprising the first control assembly and hand of the manual/auto control variable-frequency control pump
Second control assembly of dynamic/automatic control regulating valve.
It is further improved as the utility model, first control assembly includes: and the first pressure transmitter
The first pressure controller of connection, the 4th pressure controller being connect with the 5th pressure transmitter and the first pressure
The first of controller and the 4th pressure controller connection is low to select controller and the controller and described of selecting low with described first
First-hand/automatic transfer switch of variable-frequency control pump connection.
It is further improved as the utility model, the first pressure controller passes through first instrument cable and described the
The connection of one pressure transmitter, the 4th pressure controller are connect by the 4th instrument cable with the 5th pressure transmitter.
It is further improved as the utility model, described first low selects controller to pass through the 5th instrument cable and described the
The connection of one pressure controller, described first low selects controller to be connect with the 4th pressure controller by the 8th instrument cable.
Further improved as the utility model, the first-hand/automatic transfer switch by the 9th instrument cable with
Described first it is low select controller to connect, the first-hand/automatic transfer switch passes through the 11st instrument cable and the frequency conversion tune
Speed pump connection.
It is further improved as the utility model, second control assembly includes: and the first pressure transmitter
The second pressure controller of connection, the third pressure controller being connect with the 5th pressure transmitter and the second pressure
The second of controller and third pressure controller connection is low to select controller and the controller and described of selecting low with described second
Second-hand/automatic transfer switch of regulating valve connection.
It is further improved as the utility model, the second pressure controller passes through second instrument cable and described the
The connection of one pressure transmitter, the third pressure controller are connect by third instrument cable with the 5th pressure transmitter.
It is further improved as the utility model, described second low selects controller to pass through the 6th instrument cable and described the
The connection of two pressure controllers, described second low selects controller to be connect with the third pressure controller by the 7th instrument cable.
Further improved as the utility model, the second-hand/automatic transfer switch by the tenth instrument cable with
Described second it is low select controller to connect, the second-hand/automatic transfer switch passes through the 12nd instrument cable and the regulating valve
Connection.
It is further improved as the utility model, the variable-frequency control pump is centrifugal pump.
The utility model has the following beneficial effects:
By first-hand/automatic transfer switch and second-hand/automatic transfer switch operation, so that variable-frequency control pump and adjusting
It is flexible and changeable that valve combines Regulation Control mode；
By low choosing protection i.e. it is low select controller be applied to two kinds of voltage adjusting devices of variable-frequency control pump and regulating valve on, substantially reduce
Oil pipeline yard Outlet pressure not superelevation and not ultralow two Risks of Inlet pressure；
By pressure set points difference, variable-frequency control pump and pressure-regulating valve can come into operation the control of PID pressure simultaneously, realize and exist
Line is hot standby, greatly improves oil pipeline yard pressure control stability, real-time and reliability, has control precision height, speed
Fastly, stable, it is easy to implement and safeguards；
Under the premise of guaranteeing preferentially to use variable-frequency control pump economizer pressure, pressure-regulating valve is realized in variable-frequency control pump
Timely automated intervention when pressure regulation deficiency supplements regulating valve voltage regulation function；
Not only energy saving, but also the small short slab of range of regulation is compensated for, enhance the operational efficiency of entire joint regulator
And safety, while Optimization of Energy Saving.
Detailed description of the invention
Fig. 1 combines the knot of regulator for a kind of oil pipeline variable frequency pump described in the utility model embodiment with regulating valve
Structure schematic diagram.
In figure,
1, first flange；2, process pipelines；3, the first process gate valve；4, variable-frequency control pump；5, the second process gate valve；6, other
Road pipeline；7, check-valves；8, the first technique ball valve；9, regulating valve；10, the second technique ball valve；11, second flange；12, the first pressure
Power transmitter；13, first pressure indicator；14, second pressure transmitter；15, second pressure indicator；16, third pressure refers to
Show device；17, third pressure transmitter；18, the 4th pressure transmitter；19, the 4th pressure indicator；20, the 5th pressure indicator；
21, the 6th pressure indicator；22, the 5th pressure transmitter；23, first pressure controller；24, second pressure controller；25,
Three pressure controllers；26, the 4th pressure controller；27, first low controller is selected；28, second low controller is selected；29, first-hand/
Automatic transfer switch；30, second-hand/automatic transfer switch；31, first instrument cable；32, second instrument cable；33, third instrument
Table cable；34, the 4th instrument cable；35, the 5th instrument cable；36, the 6th instrument cable；37, the 7th instrument cable；38,
Eight instrument cables；39, the 9th instrument cable；40, the tenth instrument cable；41, the 11st instrument cable；42, the 12nd instrument electricity
Cable.
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 oil pipeline variable frequency pump of the utility model embodiment combines regulator with regulating valve, packet
It includes:
Process pipelines 2, both ends are separately connected first flange 1 and second flange 11, first flange 1 and second flange 11 it
Between be disposed with first pressure transmitter 12, first pressure indicator 13, the first process gate valve 3, second pressure transmitter 14,
Second pressure indicator 15, variable-frequency control pump 4, third pressure indicator 16, third pressure transmitter 17, the second process gate valve 5,
4th pressure transmitter 18, the 4th pressure indicator 19, the first technique ball valve 8, the 5th pressure indicator 20, regulating valve the 9, the 6th
Pressure indicator 21, the second technique ball valve 10 and the 5th pressure transmitter 22.
By-pass line 6, one end are connected to the process pipelines 2 between first pressure indicator 13 and the first process gate valve 3
On, 6 other end of by-pass line is connected on the process pipelines 2 between the second process gate valve 5 and the 4th pressure transmitter 18, bypass
Check-valves 7 is connected with along oil product flow direction on pipeline 6.
Pressure control device comprising the first control assembly of manual/auto control variable-frequency control pump 4, and manually/from
Dynamic the second control assembly for controlling to adjust valve 9.
Wherein, the first control assembly includes: the first pressure controller 23 connecting with first pressure transmitter 12 and the 5th
The 4th pressure controller 26 that pressure transmitter 22 connects is connect with first pressure controller 23 and the 4th pressure controller 26
First low selects controller 27 and the first-hand/automatic transfer switch for selecting controller 27 and variable-frequency control pump 4 to connect low with first
29.First pressure controller 23 is connect by first instrument cable 31 with first pressure transmitter 12, the 4th pressure controller 26
It is connect by the 4th instrument cable 34 with the 5th pressure transmitter 22.First it is low select controller 27 by the 5th instrument cable 35 with
First pressure controller 23 connect, first it is low select controller 27 by the 8th instrument cable 38 and the 4th pressure controller 26 company
It connects.First-hand/automatic transfer switch 29 selects controller 27 to connect by the way that the 9th instrument cable 39 is low with first, first-hand/automatic
Switching switch 29 is connect by the 11st instrument cable 41 with variable-frequency control pump 4.
Second control assembly includes: the second pressure controller 24 connecting with first pressure transmitter 12 and the 5th pressure
The third pressure controller 25 of the connection of transmitter 22, second connect with second pressure controller 24 and third pressure controller 25
It is low to select controller 28 and the second-hand/automatic transfer switch 30 for selecting controller 28 and regulating valve 9 to connect low with second.Second
Pressure controller 24 is connect by second instrument cable 32 with first pressure transmitter 12, and third pressure controller 25 passes through third
Instrument cable 33 is connect with the 5th pressure transmitter 22.Second it is low select controller 28 pass through the 6th instrument cable 36 and second pressure
Controller 24 connects, and second low selects controller 28 to be connect with third pressure controller 25 by the 7th instrument cable 37.Second-hand/
Automatic transfer switch 30 selects controller 28 to connect by the way that the tenth instrument cable 40 is low with second, second-hand/automatic transfer switch 30
It is connect by the 12nd instrument cable 42 with regulating valve 9.
Wherein, variable-frequency control pump 4 is centrifugal pump, can be there are many control selections, and compact structure, range of flow are wide, raise
Journey range is wide, is suitable for oil pipeline, uniform flow, smooth running, with small vibration, does not need the basis of special damping, equipment peace
Dress, Maintenance and Repair expense are lower.
The oil pipeline variable frequency pump of the utility model combine with regulating valve regulator by two hands automatic transfer switch
Operation, can switch variable-frequency control pump 4 and regulating valve 9PID pressure control the state that comes into operation.The throwing controlled according to PID pressure
With state, entire oil pipeline variable frequency pump combines regulator tool with regulating valve, and there are four types of operating modes: (1) variable-frequency control pump hand
The turn speed control+manual control of valve position of regulating valve；(2) variable-frequency control pump automatic pressure control+manual control of valve position of regulating valve；
(3) the manual revolving speed control of variable-frequency control pump+regulating valve automatic pressure control；(4) variable-frequency control pump automatic pressure control+regulating valve
Automatic pressure control.
When variable-frequency control pump 4 is controlled using manual revolving speed, frequency conversion is directly set by first-hand/automatic transfer switch 29
The revolving speed of governor impeller 4, output are executed to variable-frequency control pump 4.When variable-frequency control pump 4 is controlled using automatic pressure, first pressure
Controller 23 and the 4th pressure controller 26 calculate separately to obtain different revolution speeds, and first low selects controller 27 from first pressure
It selects smaller revolution speed to export in the output of controller 23 and the 4th pressure controller 36 to execute to variable-frequency control pump 4.Work as frequency conversion
The control model of governor impeller 4 needs to do switching undisturbed to the 4th pressure controller 26 from when being cut to automatic pressure control manually,
Undisturbed processing is not done to first pressure controller 23, guarantees that variable-frequency control pump 4 is in from when switching to automatic pressure control manually
Under 4th pressure controller, 23 control model.
When regulating valve 9 is using manual control of valve position, regulating valve 9 is directly set by second-hand/automatic transfer switch 30
Valve seat opening, output are executed to regulating valve 9.When regulating valve 9 is controlled using automatic pressure, second pressure controller 24 and third
Pressure controller 25 calculates separately to obtain different valve seat openings, and second low selects controller 30 from second pressure controller 24 and
It selects smaller valve seat opening to export in the output of three pressure controllers 25 to execute to regulating valve 9.When regulating valve 9 control model from
When being cut to automatic pressure control manually, need to do switching undisturbed to third pressure controller 25, to second pressure controller 24
Undisturbed processing is not done, guarantees that regulating valve 9 is in third pressure controller 25 and controls mould from when switching to automatic pressure control manually
Under formula.
When variable-frequency control pump 4 run, and variable-frequency control pump 4 and regulating valve 9 all come into operation PID automatic pressure control when, need to open
Dynamic joint pressure regulation mode.After joint pressure regulation mode comes into operation, 24 pressure set points of second pressure controller are controlled in first pressure
Operation obtains on the basis of 23 pressure set points of device, i.e., the pressure set points of first pressure controller 23 are SP1, second pressure control
The pressure set points of device 24 are then SP1- △ P1.The pressure set points of third pressure controller 25 are in the 4th pressure controller 26
Pressure set points on the basis of operation obtain, i.e., the pressure set points of the 4th pressure controller 26 be SP2, third pressure controller
25 pressure set points are then SP2+ △ P2.Usual △ P1=0.05MPa, △ P2=0.1MPa.When variable-frequency control pump 4 stop or
When the manual revolving speed of variable-frequency control pump 4 controls or regulates 9 manual control of valve position of valve, joint pressure regulation mode is automatically terminated.
The outdoor design of present apparatus skid, degree of protection IP65, explosive-proof grade EXdIIBT4 fully meet outdoor ring
Border and live requirement of explosion proof.It is connected between the device and process pipeline using standard flange, and is suitable for the operating condition of high pressure.
The present apparatus realizes pressure-regulating valve in frequency conversion under the premise of guaranteeing preferentially to use variable-frequency control pump economizer pressure
Timely automated intervention when governor impeller pressure regulation deficiency supplements regulating valve voltage regulation function.The present apparatus was not only energy saving, but also compensated for pressure regulation
The small short slab of range enhances the operational efficiency and safety of entire control pressurer system, while Optimization of Energy Saving.
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 oil pipeline variable frequency pump combines regulator with regulating valve characterized by comprising
Process pipelines (2), both ends are separately connected first flange (1) and second flange (11), the first flange (1) and described
First pressure transmitter (12), first pressure indicator (13), the first process gate valve are disposed between second flange (11)
(3), second pressure transmitter (14), second pressure indicator (15), variable-frequency control pump (4), third pressure indicator (16),
Three pressure transmitters (17), the second process gate valve (5), the 4th pressure transmitter (18), the 4th pressure indicator (19), the first work
Skill ball valve (8), the 5th pressure indicator (20), regulating valve (9), the 6th pressure indicator (21), the second technique ball valve (10) and
5th pressure transmitter (22)；
By-pass line (6), one end are connected between the first pressure indicator (13) and first process gate valve (3)
On process pipelines (2), by-pass line (6) other end is connected to second process gate valve (5) and the 4th pressure becomes
It send on the process pipelines (2) between device (18), is connected with check-valves (7) along oil product flow direction on the by-pass line (6)；
Pressure control device comprising the first control assembly of the manual/auto control variable-frequency control pump (4), and manually/
Automatically control the second control assembly of the regulating valve (9).
2. oil pipeline variable frequency pump according to claim 1 combines regulator with regulating valve, which is characterized in that described
One control assembly includes: the first pressure controller (23) connecting with the first pressure transmitter (12) and the 5th pressure
4th pressure controller (26) of power transmitter (22) connection and the first pressure controller (23) and the 4th pressure control
The first of device (26) processed connection be low to be selected controller (27) and low with described first selects controller (27) and the variable-frequency control pump
(4) first-hand/automatic transfer switch (29) connected.
3. oil pipeline variable frequency pump according to claim 2 combines regulator with regulating valve, which is characterized in that described
One pressure controller (23) is connect by first instrument cable (31) with the first pressure transmitter (12), the 4th pressure
Controller (26) is connect by the 4th instrument cable (34) with the 5th pressure transmitter (22).
4. oil pipeline variable frequency pump according to claim 2 combines regulator with regulating valve, which is characterized in that described
One it is low select controller (27) to be connect with the first pressure controller (23) by the 5th instrument cable (35), the first low choosing
Controller (27) is connect by the 8th instrument cable (38) with the 4th pressure controller (26).
5. oil pipeline variable frequency pump according to claim 2 combines regulator with regulating valve, which is characterized in that described
On the other hand/automatic transfer switch (29) selects controller (27) to connect by the way that the 9th instrument cable (39) is low with described first, and described the
On the other hand/automatic transfer switch (29) is connect by the 11st instrument cable (41) with the variable-frequency control pump (4).
6. oil pipeline variable frequency pump according to claim 1 combines regulator with regulating valve, which is characterized in that described
Two control assemblies include: the second pressure controller (24) connecting with the first pressure transmitter (12) and the 5th pressure
The third pressure controller (25) of power transmitter (22) connection and the second pressure controller (24) and the third pressure control
The second of device (25) processed connection be low to be selected controller (28) and low with described second selects controller (28) and the regulating valve (9)
Second-hand/automatic transfer switch (30) of connection.
7. oil pipeline variable frequency pump according to claim 6 combines regulator with regulating valve, which is characterized in that described
Two pressure controllers (24) are connect by second instrument cable (32) with the first pressure transmitter (12), the third pressure
Controller (25) is connect by third instrument cable (33) with the 5th pressure transmitter (22).
8. oil pipeline variable frequency pump according to claim 6 combines regulator with regulating valve, which is characterized in that described
Two it is low select controller (28) to be connect with the second pressure controller (24) by the 6th instrument cable (36), the second low choosing
Controller (28) is connect by the 7th instrument cable (37) with the third pressure controller (25).
9. oil pipeline variable frequency pump according to claim 6 combines regulator with regulating valve, which is characterized in that described
Second-hand/automatic transfer switch (30) selects controller (28) to connect by the way that the tenth instrument cable (40) is low with described second, and described the
Second-hand/automatic transfer switch (30) is connect by the 12nd instrument cable (42) with the regulating valve (9).
10. oil pipeline variable frequency pump according to claim 1 combines regulator with regulating valve, which is characterized in that described
Variable-frequency control pump (4) is centrifugal pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821803369.6U CN209196557U (en) | 2018-11-02 | 2018-11-02 | A kind of oil pipeline variable frequency pump combines regulator with regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821803369.6U CN209196557U (en) | 2018-11-02 | 2018-11-02 | A kind of oil pipeline variable frequency pump combines regulator with regulating valve |
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| Publication Number | Publication Date |
|---|---|
| CN209196557U true CN209196557U (en) | 2019-08-02 |
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ID=67410268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821803369.6U Active CN209196557U (en) | 2018-11-02 | 2018-11-02 | A kind of oil pipeline variable frequency pump combines regulator with regulating valve |
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| CN (1) | CN209196557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210381A (en) * | 2018-11-02 | 2019-01-15 | 中国石油天然气集团公司 | A kind of oil pipeline variable frequency pump combines regulator with regulating valve |
-
2018
- 2018-11-02 CN CN201821803369.6U patent/CN209196557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210381A (en) * | 2018-11-02 | 2019-01-15 | 中国石油天然气集团公司 | A kind of oil pipeline variable frequency pump combines regulator with regulating valve |
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