CN203095594U - Automatic oil discharging control device - Google Patents
Automatic oil discharging control device Download PDFInfo
- Publication number
- CN203095594U CN203095594U CN 201320058225 CN201320058225U CN203095594U CN 203095594 U CN203095594 U CN 203095594U CN 201320058225 CN201320058225 CN 201320058225 CN 201320058225 U CN201320058225 U CN 201320058225U CN 203095594 U CN203095594 U CN 203095594U
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- plc
- programmable logic
- logic controller
- pump
- electric control
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Abstract
An automatic oil discharging control device is characterized in that a controller text displayer wire is connected with a communication port C of a programmable logic controller (PLC), a remote control computer wire is connected with a communication port B of the PLC, a flow meter wire is connected with a digital quantity input point DI of the PLC, a pipeline pump wire is connected with a digital quantity output point DO0 of the PLC, a stripping pump wire is connected with a digital quantity output point DO1 of the PLC, and an output point D wire of an analog quantity output module is connected with an electric control valve. A PLC control technology and a network communication technology are adopted, and a flow signal, a pipeline pump, a stripping pump, a control signal of the electric control valve and a current signal of an oil discharging pump motor are integrated on the automatic oil discharging control device. The working state of the pump and the valve is controlled by detecting the inputting of the flow signal and the current signal of the oil discharging pump motor and preset oil discharging quantity, and the oil discharging of each swivel pipe position is controlled automatically.
Description
Technical field
The utility model is the integrated corollary apparatus that unloads the hair oil device of diesel locomotive---automatic emptying control setup, and particularly to the improvement of its structure.
Background technology
At present, diesel locomotive is reorganized and outfit and is unloaded oil distribution facilities and do not have the emptying automatic control device, only limit to artificial frequent M/C, its structure is, the emptying process is after N oil filling riser put into truck tanker, manually to open first oil filling riser manually-operated gate, manually opens tubing pump again, at the bottom of first truck tanker of artificial visually examine is discharged to jar, manually stop first oil filling riser manually-operated gate; Manually open second oil filling riser manually-operated gate again, the rest may be inferred until finishing whole RTC unloading.The shortcoming of this structure is, each process is manual operation, not only need the manning many, and need operating personal sense of responsibility extremely strong, emptying phenomenon will appear in case be connected bad, and manual operation also is difficult to satisfy quick, accurate, safe emptying job requirements, and the emptying precision is not high.
Summary of the invention
For overcoming the shortcoming that above-mentioned prior art exists, the utility model provides a kind of improved automatic emptying control setup.
A kind of automatic emptying control setup is characterized in that, controller text display lead connects the PORT COM of programmable logic controller (PLC); The remote control computer lead connects the PORT COM of programmable logic controller (PLC); The flow counter lead connects the digital quantity entrance point of programmable logic controller (PLC); The tubing pump lead connects the digital quantity output point of programmable logic controller (PLC); The stripping pump lead connects the digital quantity output point of programmable logic controller (PLC); The output point lead of analog output module connects electric control valve.
Emptying can be carried out successively according to the sequencing of setting in each crane position of the utility model, and each crane position reserved part oil product is done sweeping usefulness, more independent sweeping is carried out in each crane position after all crane position emptying is finished.
The utility model adopts PLC control technology, the network communications technology, control signal with flow signal, tubing pump, stripping pump and electric control valve, the set of unloading pump motor current signal is automatic emptying control setup, detect by input flow signal, the input of unloading pump motor current signal detects, and preset unload oil mass, come the mode of operation of control pump and valve, guarantee the automation control of each crane position emptying.
The utility model is with programmable logic controller (PLC) PLC, flow counter, electric control valve, unloading pump, stripping pump, friendly remote control computer HMI man-machine interface and scene controller text display HMI man-machine interface on the spot combine, and constitute control, order circuit with the lead ways of connecting.The utility model changes original more loaded down with trivial details manual start and stop pump and the operating process of hand switch valve, artificial judgement testing process according to emptying technology (finishing emptying---sweeping successively according to the oil mass of unloading that presets) into and is connected with the flow counter flow signal by programmable logic controller (PLC) PLC, by detecting the current value of unloading pump motor, by the logic start and stop of control unloading pump and each road control cock, realize automation control to on-the-spot emptying operation.Programmable logic controller (PLC) PLC is connected simple and clear with the peripheral logic control unit, control stiffness is good, fault rate is low, safe reliability and oil discharging rate have greatly been improved, introduce multi-faceted demonstration and PLC core control technology and make the whole device of user's more convenient and quicker ground operation, also improved debugging speed simultaneously.
Description of drawings
Accompanying drawing 1 is the utility model functional block diagram.
Accompanying drawing 2 is the utility model circuit diagrams.
1 controller text display, 2 remote control computers, 3 flow counter, 4 tubing pumps, 5 stripping pumps, 6PWM current detection module, 7 programmable logic controller (PLC) PLC, 8AI analog output module, 9AI analog output module, 10AI analog output module, 11 first crane position electric control valves, 12 electric control valves, 13 electric control valves, 14, electric control valve, 15 electric control valves.
The specific embodiment
Automatic emptying control setup, controller text display 1 lead connects the PORT COM C of programmable logic controller (PLC) PLC7; Remote control computer 2 leads connect the PORT COM B of programmable logic controller (PLC) PLC7; Flow counter 3 leads connect the digital quantity entrance point DI of programmable logic controller (PLC) PLC7; Tubing pump 4 leads connect the digital quantity output point DO0 of programmable logic controller (PLC) PLC7; Stripping pump 5 leads connect the digital quantity output point DO1 of programmable logic controller (PLC) PLC7; The output point D lead of analog output module 8 connects electric control valve 11.
The output point E lead of analog output module 8 connects electric control valve 12.
Principle of work of the present utility model is,
Detect the flow signal of flow counter by digital quantity entrance point DI by programmable logic controller (PLC) PL7, by 5 operations of digital quantity output point DO0 control unloading pump, move the first crane position electric control valve 11 by output 4-20MA signal, this moment, the first crane position began emptying, programmable logic controller (PLC) PL7 detects the impulse singla of flow counter in real time in the emptying process, detects the current value of unloading pump motor.When emptying, need to set and unload oil mass, be generally total flow and deduct 2 tons or 2 cubes; Two kinds of situations are arranged, first kind of situation, unloading pump current of electric no change when unloading oil mass arrival set amount, it then is benchmark with the set amount, export 11: the second kinds of situations of electric control valve that the 4-20MA current signal is closed the first crane position by programmable logic controller (PLC) PL7, when unloading oil mass no show set amount, unloading pump motor current value fluctuation deviation is bigger, be benchmark constantly then with the current of electric fluctuation, electric control valve 11, the first crane position emptyings by the programmable logic controller (PLC) PL7 output 4-20MA signal at stop first crane position are in halted state; Close unloading pump.Programmable logic controller (PLC) PL7 starts stripping pump 5 by digital quantity output point DO1 then, move the electric control valve of the first crane position by output 4-20MA signal, first crane position sweeping begins, the PLC controller was by the output 4-20MA signal at stop first crane position electric control valve after sweeping was finished, and the first crane position emptying is finished;
In order to realize many cranes position emptying, improve the precision of emptying and the safety of emptying, can increase a plurality of electric control valves and come corresponding a plurality of cranes position emptying.The output point E lead of analog output module 8 connects electric control valve 12.Analog output module 9 output point F leads connect electric control valve 13, and analog output module 9 output point G leads connect electric control valve 14; The output point H lead of analog output module 10 connects electric control valve 15 respectively.
When the first crane position emptying is in halted state, move the electric control valve 12 of the second crane position simultaneously, the second crane position begins emptying, according to above-mentioned rule by that analogy, after all said process is finished in the crane position, move the second crane position electric control valve simultaneously, the second crane position begins sweeping, according to above-mentioned rule by that analogy, finish the sweeping of whole cranes position, all crane position emptying is finished.
In whole emptying and sweeping process, programmable logic controller (PLC) PL7 passes through the collection to the signal of flow, the operation of pump and valve, the detection of halted state, it is presented on the man-machine interface of on-the-spot controller text display 1, simultaneously it being presented on the remote control computer man-machine interface, is that commander center personnel or field man all can clear real-time statuss of watching on-the-spot emptying easily.
In order to determine the sweeping time more accurately, adopt current detection module 6 leads to connect the analog quantity entrance point A of programmable logic controller (PLC) PLC7, can in time detect the variation of unloading pump current of electric, guarantee determining of sweeping time point.
Claims (5)
1. an automatic emptying control setup is characterized in that, controller text display lead connects the PORT COM of programmable logic controller (PLC); The remote control computer lead connects the PORT COM of programmable logic controller (PLC); The flow counter lead connects the digital quantity entrance point of programmable logic controller (PLC); The tubing pump lead connects the digital quantity output point of programmable logic controller (PLC); The stripping pump lead connects the digital quantity output point of programmable logic controller (PLC); The output point lead of analog output module connects electric control valve.
2. according to the described automatic emptying control setup of claim 1, it is characterized in that the output point lead of analog output module connects electric control valve.
3. according to claim 1 or 2 described automatic emptying control setups, it is characterized in that analog output module output point lead connects electric control valve, analog output module output point lead connects electric control valve; The output point H lead of analog output module connects electric control valve respectively.
4. according to claim 1 or 2 described automatic emptying control setups, it is characterized in that current detection module (6) lead connects the analog quantity entrance point of programmable logic controller (PLC).
5. according to the described automatic emptying control setup of claim 3, it is characterized in that the current detection module lead connects the analog quantity entrance point of programmable logic controller (PLC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320058225 CN203095594U (en) | 2013-02-01 | 2013-02-01 | Automatic oil discharging control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320058225 CN203095594U (en) | 2013-02-01 | 2013-02-01 | Automatic oil discharging control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203095594U true CN203095594U (en) | 2013-07-31 |
Family
ID=48847013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320058225 Expired - Lifetime CN203095594U (en) | 2013-02-01 | 2013-02-01 | Automatic oil discharging control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203095594U (en) |
-
2013
- 2013-02-01 CN CN 201320058225 patent/CN203095594U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300308 Li Hong Building, 82 west two Avenue, Tianjin Airport Economic Zone, Binhai New Area, Tianjin, 201 Patentee after: CHINA RAILWAY DESIGN Corp. Address before: 300308 Li Hong Building, 82 west two Avenue, Tianjin Airport Economic Zone, Binhai New Area, Tianjin, 201 Patentee before: THE THIRD RAILWAY SURVEY AND DESIGN INSTITUTE Group Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |