CN206805305U - Pump capacity automatic regulating system - Google Patents
Pump capacity automatic regulating system Download PDFInfo
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- CN206805305U CN206805305U CN201720453671.2U CN201720453671U CN206805305U CN 206805305 U CN206805305 U CN 206805305U CN 201720453671 U CN201720453671 U CN 201720453671U CN 206805305 U CN206805305 U CN 206805305U
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- valve
- control valve
- pneumatic control
- industrial computer
- flowmeter
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Abstract
The utility model belongs to automatic control technology field, and in particular to a kind of pump capacity automatic regulating system；Including adjusting means and control system, adjusting means includes motor, shaft coupling, flowmeter and pneumatic control valve, motor is connected with tested pump by shaft coupling, water influent pipeline is connected with tested pump intake, drain pipe road is connected with tested pump discharge, and drain pipe curb media flow direction and is connected with flowmeter and pneumatic control valve in turn；Control system includes control cabinet and industrial computer, and control cabinet and industrial computer are coupled by Ethernet to be communicated；The utility model is communicated by the flowmeter on the industrial computer and adjusting means in control system and pneumatic control valve, so as to gradually increase or reduce the valve opening of pneumatic control valve, flow is reached default flow target value；Whole regulation process flow degree of regulation is high, automaticity is high, so as to improve operating efficiency, improves the working environment of tester.
Description
Technical field
The utility model belongs to automatic control technology field, and in particular to a kind of pump discharge automatic regulating system.
Background technology
Flow-rate adjustment is the key content of the regulating working conditions in water pump all-round property testing and field application.And current water
Pump discharge regulative mode still generally uses manual adjustment, degree of regulation and efficiency is low and labor intensity is high, operating environment difference and pacifies
Overall coefficient is low.With the development of computer technology, automatic technology and sensing technology, automation regulating system necessarily replaces by hand
Regulating system, and the automated system of existing market is varied, interface differs, very flexible, is not easy to extend and upgrades.Cause
This, autonomous Design research and development pump capacity automatic regulating system has important practical meaning in engineering.
Utility model content
Efficiency is low, labor intensity is high, operating environment is poor in order to solve existing for current pump capacity regulation for the utility model
Or very flexible, be not easy extension upgrading etc. the problem of, and provide a kind of pump capacity automatic regulating system.
To reach above-mentioned function, technical scheme provided by the utility model is：
A kind of pump capacity automatic regulating system, including adjusting means and control system, wherein：
The adjusting means includes motor, shaft coupling, flowmeter and pneumatic control valve, and the motor is with being tested
Pump is connected by the shaft coupling, and water influent pipeline is connected with tested pump intake, and drain pipe road is connected with tested pump discharge, drain pipe
Curb media flow direction and is connected with the flowmeter and the pneumatic control valve in turn；
The control system includes control cabinet and industrial computer, and the control cabinet and the industrial computer are coupled logical by Ethernet
News；The control cabinet is integrated with Analog input mModule and analog output module, and the Analog input mModule gathers in real time
The reading of the flowmeter simultaneously transmits a signal to the industrial computer, the industrial computer contrast meter readings and default flow
Desired value, so that it is determined that valve regulated value, the analog output module transmits valve regulated value to the pneumatic control valve,
The pneumatic control valve responds according to valve regulated value, adjusts the aperture of the pneumatic control valve.
Preferably, the control cabinet is NIcDAQ Ethernet cabinets.
Preferably, during regulation, the amplitude of increase or the reduction of the valve opening of the pneumatic control valve is described
The valve Sensitirity va1ue of pneumatic control valve.
The beneficial effects of the utility model are：The utility model passes through on the industrial computer and adjusting means in control system
Flowmeter and pneumatic control valve communication, so as to gradually increase or reduce pneumatic control valve valve opening, flow is reached pre-
If flow target value；Whole regulation process flow degree of regulation is high, automaticity is high, so as to improve operating efficiency, changes
It has been apt to the working environment of tester, there is practical implementation value.
Brief description of the drawings
Fig. 1 is the structural representation of adjusting means；
Fig. 2 is composition frame chart of the present utility model；
Fig. 3 is flow self-regulating process flow chart.
Embodiment
1 the utility model is further elaborated to accompanying drawing 3 below in conjunction with the accompanying drawings：
A kind of pump capacity automatic regulating system, including adjusting means and control system.Wherein adjusting means such as Fig. 1 institutes
Show, motor 3 is connected with tested pump 1 by shaft coupling 2, and water influent pipeline 4 is connected with surveying the entrance of pump 1, and drain pipe road 7 is with surveying pump
1 outlet is connected, and flowmeter 5 and pneumatic control valve 6 are connected with turn along media flow direction on drain pipe road 7.Water influent pipeline 4
Pipeline corresponding to other end connection pumped medium, drain pipe road 7 connects pipeline corresponding to pumped medium transmission objectives object, actual
In, medium enters from water influent pipeline 4 to be surveyed after pump 1 from drain pipe road 7 with draining into target, and on the drain pipe road 7
Flowmeter 5 measures medium transmission quantity in real time, then in real time medium can be controlled to pass according to demand by the aperture for adjusting pneumatic control valve 6
Throughput rate.
Pump capacity automatic regulating system composition is as shown in Figure 2.Analog input mModule and analog output module integrate
On NIcDAQ Ethernet cabinets, NIcDAQ Ethernet cabinets pass through netting twine and industrial computer communication.Analog input mModule is real-time
Gather the reading of flowmeter 5 and transmit a signal to industrial computer, the program write, program contrast flowmeter are run on industrial computer
Reading and default flow target value, and determine valve opening regulated value according to control algolithm, analog output module is by valve
Aperture regulation value is transmitted to the signal input part of pneumatic control valve 6, pneumatic control valve 6 and responded according to regulated value, so as to reach
To the purpose for changing transmission flow.Above step is circulated, until the reading of flowmeter 5 and preset flow desired value approximately equal.
Fig. 3 is flow self-regulating process flow chart.A in flow chart is the valve Sensitirity va1ue of pneumatic control valve 6.Stream
It is as follows to measure regulating step：
(1) the output flow signal of flowmeter 5 is transmitted to industrial computer；
(2) the program contrast meter readings and preset flow desired value on industrial computer；
(3) if meter readings are more than preset flow desired value, pneumatic control valve opening value reduces A；
(4) repeat step (2) and (3), until meter readings are detected less than preset flow desired value for the first time, then adjust
Section end；
(5) if meter readings are less than preset flow desired value, pneumatic control valve opening value increase A；
(6) repeat step (2) and (5), until meter readings are detected more than preset flow desired value for the first time, then adjust
Section end.
The utility model selects the pneumatic control valve of response quickly as adjustment actuating mechanism, and considers to adjust threshold sensitivity
Influence to Flow-rate adjustment error, during regulation, the increase of valve opening or reduction amplitude are with valve Sensitirity va1ue
It is defined, and valve regulated is slow in one's movements, whole adjusting means tends to dynamic equilibrium.Therefore, when original state is meter readings
During more than preset flow desired value, valve opening slowly reduces to detects that meter readings are less than preset flow target for the first time
Value, then regulation terminate；Or when original state is that meter readings are less than preset flow desired value, valve opening slowly increases to
Program detects that meter readings are more than preset flow desired value for the first time, then regulation terminates.Adjusting method is simple, and program is easily real
It is existing.
The utility model improves Flow-rate adjustment precision and whole regulation process automaticity is high, so as to improve work
Efficiency, the working environment of tester is improved, there is practical implementation value.
Embodiment described above, simply preferred embodiments of the present utility model, are not to limit implementation model of the present utility model
Enclose, therefore the equivalent change or modification that all construction, feature and principles according to described in present utility model application the scope of the claims are done, all should
It is included in the utility model patent application range.
Claims (3)
- A kind of 1. pump capacity automatic regulating system, it is characterised in that：Including adjusting means and control system, wherein：The adjusting means includes motor, shaft coupling, flowmeter and pneumatic control valve, and the motor leads to tested pump The shaft coupling connection is crossed, water influent pipeline is connected with tested pump intake, and drain pipe road is connected with tested pump discharge, drain pipe curb Media flow direction and be connected with the flowmeter and the pneumatic control valve in turn；The control system includes control cabinet and industrial computer, and the control cabinet and the industrial computer are coupled by Ethernet to be communicated； The control cabinet is integrated with Analog input mModule and analog output module, and the Analog input mModule is in real time described in collection The reading of flowmeter simultaneously transmits a signal to the industrial computer, the industrial computer contrast meter readings and default flow targets Value, so that it is determined that valve regulated value, the analog output module transmits valve regulated value to the pneumatic control valve, described Pneumatic control valve responds according to valve regulated value, adjusts the aperture of the pneumatic control valve.
- 2. pump capacity automatic regulating system as claimed in claim 1, it is characterised in that：The control cabinet is NIcDAQ ether Net cabinet.
- 3. pump capacity automatic regulating system as claimed in claim 1 or 2, it is characterised in that：It is described pneumatic during regulation The amplitude of increase or the reduction of the valve opening of regulating valve is the valve Sensitirity va1ue of the pneumatic control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720453671.2U CN206805305U (en) | 2017-04-26 | 2017-04-26 | Pump capacity automatic regulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720453671.2U CN206805305U (en) | 2017-04-26 | 2017-04-26 | Pump capacity automatic regulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206805305U true CN206805305U (en) | 2017-12-26 |
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ID=60738548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720453671.2U Active CN206805305U (en) | 2017-04-26 | 2017-04-26 | Pump capacity automatic regulating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206805305U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667973A (en) * | 2019-01-16 | 2019-04-23 | 苏州仁甬得物联科技有限公司 | A kind of high-precision flow valve control system |
| CN112327951A (en) * | 2020-12-04 | 2021-02-05 | 中国船舶工业集团公司第七0八研究所 | Automatic flow control system for water pump hydraulic performance test bed |
-
2017
- 2017-04-26 CN CN201720453671.2U patent/CN206805305U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667973A (en) * | 2019-01-16 | 2019-04-23 | 苏州仁甬得物联科技有限公司 | A kind of high-precision flow valve control system |
| CN112327951A (en) * | 2020-12-04 | 2021-02-05 | 中国船舶工业集团公司第七0八研究所 | Automatic flow control system for water pump hydraulic performance test bed |
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| GR01 | Patent grant |