CN208673122U - A kind of flowmeter control system - Google Patents
A kind of flowmeter control system Download PDFInfo
- Publication number
- CN208673122U CN208673122U CN201821219663.2U CN201821219663U CN208673122U CN 208673122 U CN208673122 U CN 208673122U CN 201821219663 U CN201821219663 U CN 201821219663U CN 208673122 U CN208673122 U CN 208673122U
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- CN
- China
- Prior art keywords
- flowmeter
- plc controller
- flow monitor
- relay
- control system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000001514 detection method Methods 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 2
- 238000004886 process control Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000005856 abnormality Effects 0.000 abstract description 3
- 230000007306 turnover Effects 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a kind of flowmeter control systems comprising industrial control computer, flow monitor, PLC controller, several relays and several flowmeters；The output end of each flowmeter is connect by a relay with the flow monitor；The control terminal of each relay is connect with the PLC controller；The flow monitor and the PLC controller are connect with the industrial control computer.The utility model has the advantages that: it is simple, convenient.Booting can effectively reduce influence of circuit problem early period to monitoring result, and circuit abnormality state is intuitive, and allow to remotely operate and automatically control, and can effectively save labour turnover, lose caused by reducing due to operation error.It is smaller by environmental restrictions, can be suitble to many operators can not long period of operation environment.
Description
Technical field
The utility model belongs to industrial control field, and in particular to a kind of flowmeter control system.
Background technique
Partial discharge meter transmits flow signal using electric current loop in the prior art.Electric current loop (current loop) is a kind of
Analogue communication mode, compared with various modern digital communication modes, it does not need complicated coding, decoding effort, communication mode
Simply；Due to the inherent anti-interference ability of electric current loop, there is very high reliability in the industry spot of noise circumstance complexity；
Meanwhile 4~20mA current ring communication has reliable fault diagnosis functions again.
However when receiving electric current ring signal, since industrial control system usually has a large amount of flowmeter, so that when detection flows
Need to switch the electric current loop of each flowmeter, inevasible the case where having many operation errors causes monitored results inaccurate
Really.And since the handover operation panel of flowmeter uses full mechanically actuated, the operation of service life of flowmeter by material and operator
Habit limitation.For the operation panel frequently used for a long time, operation panel is easier to every disadvantage such as damage.And it cannot be long-range
Control can not recycle self-test, check that flow meter itself is abnormal.So it is larger to there is manpower consumption in use, uses
The more situation of environmental restrictions.
In addition, being difficult to ensure the electric current loop of only one flowmeter of synchronization by access detection system using manual operation
System；This electric current that detection system is received is the superposition of the output signal of multiple flowmeters.If operator occurs above-mentioned
Monitored results will be seriously affected.And above-mentioned mistake can not remotely operate amendment, without startup self-detection function when unlatching, only grasp
Abnormal conditions can just be perceived by accomplishing when the access, can seriously affect monitoring progress.
Summary of the invention
The purpose of this utility model is to provide a kind of flowmeter control system according in place of above-mentioned the deficiencies in the prior art,
The flowmeter control system realizes the automatic switchover of flowmeter current signal by using PLC control device.
The utility model aim realization is completed by following technical scheme:
A kind of flowmeter control system comprising industrial control computer, flow monitor, PLC controller, several relays
And several flowmeters；The output end of each flowmeter is connect by a relay with the flow monitor；Each institute
The control terminal for stating relay is connect with the PLC controller；The flow monitor and the PLC controller with the work
Control computer connection.
The current range of the output end output of the flowmeter is in 4mA between 20mA.
The flow monitor is internally provided with the current detection module and communication module of interconnection, the electric current inspection
It surveys module and is used to be converted to the current signal that the flowmeter exports digital signal, the communication module is used for the electric current
The digital signal of detection module output is sent to the industrial control computer.
The PLC controller is for controlling being turned on and off for each relay.
The industrial control computer is connected with acoustic-optic alarm.
It further include remote control terminal；The remote control terminal is connect by network with the industrial control computer.
The utility model has the advantages that: it is simple, convenient.Booting can effectively reduce circuit problem early period to monitoring result
Influence, circuit abnormality state is intuitive, and allow remotely operate and automatically control, can effectively save labour turnover, reduce because behaviour
Make mistakes and caused by loss.It is smaller by environmental restrictions, can be suitble to many operators can not long period of operation environment.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model flowmeter control system.
Specific embodiment
The feature of the utility model and other correlated characteristics are made further specifically by embodiment below in conjunction with attached drawing
It is bright, in order to the understanding of technical staff of the same trade:
Embodiment: as shown in Figure 1, the present embodiment is specifically related to a kind of flowmeter control system, which includes industry control meter
Calculation machine 1, flow monitor 2, PLC controller 3, remote control terminal 4, several relays 5 and several flowmeters 6.
The output end of each flowmeter 6 is connect by a relay 5 with flow monitor 2.The control terminal of each relay 5
It is connect with PLC controller 3.Flow monitor 2 and PLC controller 3 are connect with industrial control computer 1.Industrial control computer 1 can lead to
It crosses PLC controller 3 and controls being turned on and off for each relay 5, while receiving and storing the flow letter that flow monitor 2 detects
Number.
Specifically, the current range that exports of the output end of flowmeter 6 is in 4mA between 20mA.In synchronization, PLC control
Device 3 processed makes 5 number of relay in the conductive state less than two, and such flow monitor 2 will not receive more than one
The current signal that flowmeter 6 exports.The program pathing of relay 5 has uniqueness, only single channel is allowed to be connected, can effectively avoid flowing
Amount monitor 2 monitors multiple flowmeters 6 simultaneously, causes monitoring result inaccurate.And the service life of relay 5 is far longer than machinery
The service life of operation panel.
In the present embodiment, flow monitor 2 is internally provided with the current detection module and communication module of interconnection.Electricity
Stream detection module is used to be converted to the current signal that flowmeter 6 exports digital signal, what digital signal and flowmeter 6 detected
The vertical existence function relationship of flow.Communication module is used to the digital signal that current detection module exports being sent to industrial control computer
1。
Self-test can be booted up when the control system starting of the present embodiment.During startup self-detection, PLC controller according to
It is secondary to open each relay 5, while successively detecting whether the current signal that each flowmeter 6 exports is in just using flow monitor 2
In normal range.If some flowmeter is in malfunction, industrial control computer 1 controls acoustic-optic alarm connected to it and issues
Sound and light alarm signal, while industrial control computer 1 is in program display interface display warning mark and fault message.
The control system of the present embodiment further includes remote control terminal 4.Remote control terminal 4 passes through network and industrial control computer 1
Connection.The long-range control of whole system can be realized by remote control terminal 4.
The control system of the present embodiment can be in the case where unattended, the signal of each road flowmeter 6 of circulatory monitoring, and will
Data on flows after conversion is stored in real time in industrial control computer 1；The sample cyclic interval of each flowmeter 6 can be carried out by PLC
Control.
The advantageous effects of the present embodiment are as follows: simple, convenient.Booting can effectively reduce circuit problem early period to prison
The influence of result is surveyed, circuit abnormality state is intuitive, and allows to remotely operate and automatically control, and can effectively save labour turnover, drop
It is low due to operation error caused by lose.It is smaller by environmental restrictions, can be suitble to many operators can not long period of operation ring
Border.
Claims (6)
1. a kind of flowmeter control system, it is characterised in that including industrial control computer, flow monitor, PLC controller, several
Relay and several flowmeters；The output end of each flowmeter is connected by a relay and the flow monitor
It connects；The control terminal of each relay is connect with the PLC controller；The flow monitor and the PLC controller are equal
It is connect with the industrial control computer.
2. a kind of flowmeter control system according to claim 1, it is characterised in that the output end of the flowmeter exports
Current range in 4mA between 20mA.
3. a kind of flowmeter control system according to claim 1, it is characterised in that setting inside the flow monitor
There are the current detection module and communication module of interconnection, the current detection module is used for the electricity for exporting the flowmeter
Stream signal is converted to digital signal, and the communication module is used to the digital signal that the current detection module exports being sent to institute
State industrial control computer.
4. a kind of flowmeter control system according to claim 1, it is characterised in that the PLC controller is each for controlling
The relay is turned on and off.
5. a kind of flowmeter control system according to claim 1, it is characterised in that the industrial control computer connection is sound
Light warning device.
6. a kind of flowmeter control system according to claim 1, it is characterised in that further include remote control terminal；It is described remote
Process control end is connect by network with the industrial control computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821219663.2U CN208673122U (en) | 2018-07-27 | 2018-07-27 | A kind of flowmeter control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821219663.2U CN208673122U (en) | 2018-07-27 | 2018-07-27 | A kind of flowmeter control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208673122U true CN208673122U (en) | 2019-03-29 |
Family
ID=65833203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821219663.2U Expired - Fee Related CN208673122U (en) | 2018-07-27 | 2018-07-27 | A kind of flowmeter control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208673122U (en) |
-
2018
- 2018-07-27 CN CN201821219663.2U patent/CN208673122U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190329 |