CN101118426A - Air/water cooler control device special for electric machine - Google Patents
Air/water cooler control device special for electric machine Download PDFInfo
- Publication number
- CN101118426A CN101118426A CNA2007100432541A CN200710043254A CN101118426A CN 101118426 A CN101118426 A CN 101118426A CN A2007100432541 A CNA2007100432541 A CN A2007100432541A CN 200710043254 A CN200710043254 A CN 200710043254A CN 101118426 A CN101118426 A CN 101118426A
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- controller
- plc controller
- pilot lamp
- water cooler
- control device
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Abstract
The present invention provides a control device of a motor special water cooler, and aims at solving the technical problem of the autocontrolled motor special water cooler. The I/O module of a PLC controller is respectively connected with the output ends of a temperature controller, a differential pressure controller, a flow rate controller, and a leakage alarm; the display module of the PLC controller is connected with a status indicator lamp; the output end of the PLC controller is connected with a DC machine starting loop; the PLC controller is connected with an external power supply. The present invention has the advantages that the loop is cut by the PLC controller output order to deal with the failure signal automatically when the failure to the PLC control input signal happens.
Description
Technical field
The present invention relates to a kind of control device, the control device of the special-purpose air/water cooler of particularly a kind of motor.
Background technology
The special-purpose air/water cooler of motor generally all is placed in above the motor, and traditional control device connects with relay, manually controls when breaking down, and automaticity is low.
Summary of the invention
Technical matters of the present invention is the control device that a kind of special-purpose air/water cooler of motor with PLC control will be provided.
In order to solve above technical matters, the invention provides the control device of the special-purpose air/water cooler of a kind of motor, the I/O module of PLC controller is connected with temperature controller, differential pressure pilot, flow controller, water-leakage alarm output terminal, the display module of PLC controller is connected with status indicator lamp, the PLC controller output end starts the loop with direct current generator and links to each other, and the PLC controller also links to each other with external power supply.
Described status indicator lamp, it is the normal pilot lamp of blast, calm pressure pilot lamp, the normal pilot lamp of flow, no flow pilot lamp, overtemperature alarm pilot lamp, water leakage alarm pilot lamp.
Superior effect of the present invention is: the PLC control input signals, in case break down, PLC control output order cut-off loop carries out robotization to fault-signal and handles.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present invention;
Fig. 2 is the schematic block circuit diagram of temperature controller of the present invention;
Fig. 3 is the schematic block circuit diagram of differential pressure pilot of the present invention;
Fig. 4 is the schematic block circuit diagram of flow controller of the present invention;
Fig. 5 is the schematic block circuit diagram of water-leakage alarm of the present invention.
The number in the figure explanation
The 1-PLC controller; The 2-temperature controller;
The 3-differential pressure pilot; The 4-flow controller;
The 5-water-leakage alarm; The 6-direct current motor starts the loop;
The 7-power module; The normal pilot lamp of 8-blast;
The calm pressure pilot lamp of 9-; The normal pilot lamp of 10-flow;
11-does not have the flow pilot lamp; 12-overtemperature alarm pilot lamp;
13-water leakage alarm pilot lamp.
Embodiment
See also shown in the accompanying drawing, the invention will be further described.
Shown in Fig. 1 schematic block circuit diagram of the present invention, the invention provides the control device of the special-purpose air/water cooler of a kind of motor, the I/O module of PLC controller 1 is connected with the output terminal of temperature controller 2, differential pressure pilot 3, flow controller 4, water-leakage alarm 5, the display module of PLC controller 1 is connected with status indicator lamp, PLC controller 1 output terminal starts loop 6 with direct current generator and links to each other, and PLC controller 1 also links to each other with external power supply module 7.
Described status indicator lamp, it is the normal pilot lamp 8 of blast, calm pressure pilot lamp 9, the normal pilot lamp 10 of flow, no flow pilot lamp 11, overtemperature alarm pilot lamp 12, water leakage alarm pilot lamp 13.When motor normally started, the normal pilot lamp of blast, the normal pilot lamp of flow were lighted.
Shown in the schematic block circuit diagram of Fig. 2 temperature controller 2 of the present invention; temperature controller 2 be input as thermal air pressure; the leaving air temp of setting refrigeratory simultaneously is 42 ℃; the thermal air pressure amount of temperature controller 2 control inputs is converted into temperature value; when the sensor in the temperature controller 2 receives above 42 ℃; normally closed point is jumped in the contact of relay from normal battle; after PLC controller 1 is received the output signal of temperature controller 2; overtemperature alarm pilot lamp 12 is lighted in the 1 control output of PLC controller; illustrate that motor or cooling system go wrong; PLC control output order cut-off loop; fault-signal is carried out robotization to be handled; shutdown is fixed a breakdown and is normally moved with the safety of guaranteeing motor, and the model that this temperature controller 2 adopts is XMT/8002.The leaving air temp that typical temperature controller 2 is set refrigeratorys is 42 ℃, but certain areas, as high temperature areas such as Nanjing, Chongqing, because of its inflow temperature greater than 33 ℃, so the leaving air temp of refrigeratory is set at 45 ℃.
Shown in the schematic block circuit diagram of Fig. 3 differential pressure pilot 3 of the present invention; the multipath wind pressure amount that is input as of differential pressure pilot 3; allow motor start-up when setting differential pressure simultaneously greater than 260Pa; fan blower is running always when refrigeratory normally moves; at this moment differential pressure pilot 3 exists differential pressure; if fan blower breaks down or stops transport; variation has just taken place in the blast of air circulating system so; at this moment differential pressure is 0; normally closed point is jumped in the contact of differential pressure pilot 3 relays from normal battle; after PLC controller 1 is received the output signal of differential pressure pilot 3; calm pressure pilot lamp 9 is lighted in control, and PLC control output order cut-off loop carries out robotization to fault-signal and handles; shutdown is fixed a breakdown or is shut down maintenance, and these differential pressure pilot 3 adoptable models are CPK/1.
Shown in the schematic block circuit diagram of Fig. 4 flow controller 4 of the present invention, the flow that is input as rising pipe of flow controller 4, setting streamflow simultaneously is 34 liters/minute, when flow is lower than 34 liters/timesharing, normally closed point is jumped in the contact of flow controller 4 relays from normal battle, PLC controller 1 is received the output signal of flow controller 4, no flow pilot lamp 11 is lighted in control, PLC control output order cut-off loop, fault-signal is carried out robotization to be handled, can avoid not reaching specified heat exchange power because of the deficiency of the water yield, flow controller 4 adopts LKB/01.
Shown in the schematic block circuit diagram of Fig. 5 water-leakage alarm 5 of the present invention; even refrigeratory leaks also water to be drained in the motor and goes; there is individual ponding dish the refrigeratory below; the input end of water-leakage alarm 5 is arranged in the ponding dish; when if refrigeratory takes place to leak; lead input signal in the ponding dish is to water-leakage alarm 5; the relay of water-leakage alarm 5 jumps to normally closed point from normal battle; PLC controller 1 is received the output signal of water-leakage alarm 5; water leakage alarm pilot lamp 13 is lighted in control, and PLC control output order cut-off loop carries out robotization to fault-signal and handles; at once shut down maintenance, normally move with the safety of guaranteeing motor.
Claims (2)
1. the control device of the special-purpose air/water cooler of a motor, it is characterized in that: the I/O module of PLC controller is connected with temperature controller, differential pressure pilot, flow controller, water-leakage alarm output terminal, the display module of PLC controller is connected with status indicator lamp, the PLC controller output end starts the loop with direct current generator and links to each other, and the PLC controller also links to each other with external power supply.
2. press the control device of the special-purpose air/water cooler of the described a kind of motor of claim 1, it is characterized in that: described status indicator lamp, it is the normal pilot lamp of blast, calm pressure pilot lamp, the normal pilot lamp of flow, no flow pilot lamp, overtemperature alarm pilot lamp, water leakage alarm pilot lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100432541A CN101118426A (en) | 2007-06-29 | 2007-06-29 | Air/water cooler control device special for electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100432541A CN101118426A (en) | 2007-06-29 | 2007-06-29 | Air/water cooler control device special for electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101118426A true CN101118426A (en) | 2008-02-06 |
Family
ID=39054571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100432541A Pending CN101118426A (en) | 2007-06-29 | 2007-06-29 | Air/water cooler control device special for electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101118426A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807071A (en) * | 2010-04-02 | 2010-08-18 | 天津理工大学 | Input-output terminal continuous controller based on RS485 bus |
| CN103353751A (en) * | 2013-07-31 | 2013-10-16 | 济钢集团有限公司 | High-power motor water leakage detection apparatus |
| WO2013163786A1 (en) * | 2012-04-29 | 2013-11-07 | 四川宏华石油设备有限公司 | Fracturing pump |
| CN112399681A (en) * | 2020-11-30 | 2021-02-23 | 中国第一汽车股份有限公司 | Intelligent display system for bench test state and control method |
-
2007
- 2007-06-29 CN CNA2007100432541A patent/CN101118426A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807071A (en) * | 2010-04-02 | 2010-08-18 | 天津理工大学 | Input-output terminal continuous controller based on RS485 bus |
| CN101807071B (en) * | 2010-04-02 | 2012-05-30 | 天津理工大学 | Input-output terminal continuous controller based on RS485 bus |
| WO2013163786A1 (en) * | 2012-04-29 | 2013-11-07 | 四川宏华石油设备有限公司 | Fracturing pump |
| CN104204521A (en) * | 2012-04-29 | 2014-12-10 | 四川宏华石油设备有限公司 | Fracturing pump |
| CN103353751A (en) * | 2013-07-31 | 2013-10-16 | 济钢集团有限公司 | High-power motor water leakage detection apparatus |
| CN112399681A (en) * | 2020-11-30 | 2021-02-23 | 中国第一汽车股份有限公司 | Intelligent display system for bench test state and control method |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20080206 |