CN102502415A - Intelligent insulation monitoring device for multifunctional aluminum electrolysis crown block and method - Google Patents
Intelligent insulation monitoring device for multifunctional aluminum electrolysis crown block and method Download PDFInfo
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- CN102502415A CN102502415A CN2011103705566A CN201110370556A CN102502415A CN 102502415 A CN102502415 A CN 102502415A CN 2011103705566 A CN2011103705566 A CN 2011103705566A CN 201110370556 A CN201110370556 A CN 201110370556A CN 102502415 A CN102502415 A CN 102502415A
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Abstract
The invention discloses an intelligent insulation monitoring device for a multifunctional aluminum electrolysis crown block and a method, belongs to the field of insulation monitoring, and particularly relates to the intelligent insulation monitoring device for the multifunctional aluminum electrolysis crown block and the method. The intelligent insulation monitoring device comprises a stabilized voltage power supply, wherein, the stabilized voltage power supply is connected with an AC/DC (Alternating Current/Direct Current) voltage output controller; the AC/DC voltage output controller is connected with a measuring input system; the measuring input system is connected with an isolating sensor; the isolating sensor is connected with a detection insulation controller; the stabilized voltage power supply is respectively connected with the isolating sensor and the detection insulation controller; and the AC/DC voltage output controller is connected with the detection insulation controller. The intelligent insulation monitoring device can detect the insulating property between two metal bodies accurately and reliably, achieves low power consumption, is convenient to install and debug, and reduces the detection workload and can complete the detection more timely by compared with a traditional detection method.
Description
Technical field
The invention belongs to insulation monitoring field, especially relate to a kind of aluminum electrolysis multifunctional overhead crane intelligence insulation control monitor unit and method.
Background technology
Aluminum electrolysis multifunctional overhead crane since its working environment and its technological requirement determined will carry out multistage insulation processing between the multifunction crane each several part; Otherwise will cause moving and controlling on interior heavy DC electricity of electrolytic bath and the overhead traveling crane being short-circuited with alternating current; Cause control system to be burnt out; Damage multifunction crane and electrolytic bath, short circuit current also will cause overhead traveling crane operator's personal injury simultaneously, so the monitoring of insulating in real time between the each several part of aluminum electrolysis multifunctional overhead crane is very important.
At present; Aluminum electrolysis multifunctional overhead crane is not all installed insulation monitored control system in real time; But in the aluminum electrolysis multifunctional overhead crane real work, climb to multifunction crane by the maintenance worker overhead traveling crane insulating point at different levels are carried out offline inspection afterwards, the testing amount is very big, and testing is inconvenient; On the other hand; Because the multifunction crane insulating point is more; Scope distributes wide, is the parking offline inspection in addition, is destroyed and during short circuit as an insulating point; Therefore can't detect the insulation situation of this point timely, be easy to cause the insulation short circuit of aluminum electrolysis multifunctional overhead crane and burn out equipment and harm operator's personal safety.
Summary of the invention
The technical matters that the present invention will solve provides a kind of aluminum electrolysis multifunctional overhead crane intelligence insulation control monitor unit of the monitoring of can under the situation of not stopping, insulating in real time.
Another technical matters that the present invention will solve provides a kind of easy to detect and method for supervising of intelligence insulation more timely.
To achieve these goals, the invention provides a kind of aluminum electrolysis multifunctional overhead crane intelligence insulation control monitor unit, comprise constant voltage power suspply; Said constant voltage power suspply is connected with the combined-voltage o controller; Said combined-voltage o controller is connected with the measurement input system; Said measurement input system is connected with isolation sensor; Said isolation sensor is connected with detection insulation controller; Said constant voltage power suspply is connected with said detection insulation controller with said isolation sensor respectively; Said combined-voltage o controller is connected with said detection insulation controller;
Said constant voltage power suspply is used for to said combined-voltage o controller, said isolation sensor and said detection insulation controller power supply being provided;
Said combined-voltage o controller is used for to treating that the metal target body applies voltage;
Said measurement input system is used to detect the voltage difference of metal target body, and sends induced voltage to said isolation sensor;
Said isolation sensor converts induced voltage the available voltage signal to and sends this available voltage signal to said detection insulation controller;
Said detection insulation controller receives voltage signal the voltage signal that receives is carried out the A/D conversion; Said detection insulation controller control combined-voltage o controller output voltage is to the metal target body.
Preferable, said detection insulation controller is connected with the output driving governor; Said constant voltage power suspply is connected with said output driving governor; Said constant voltage power suspply provides power supply to said output driving governor; Said detection insulation controller is controlled said output driving governor output relay on-off signal.
Preferable, said output driving governor is connected with the input end of programmable logic controller (PLC); Be provided with short circuit relay between said output driving governor and the said programmable logic controller (PLC); Said output driving governor is controlled the closure of said short circuit relay; Said programmable logic controller (PLC) receives the signal that said detection insulation controller sends through the output driving governor.
Preferable, said output driving governor is connected with the input end of attention display through alarm relay; Said output driving governor is controlled the closure of said alarm relay.
Preferable, be provided with clipping amplifier between said isolation sensor and the said detection insulation controller; The mouth of said isolation sensor is connected with the input end of said clipping amplifier, and the mouth of said clipping amplifier is connected with the input end of said detection insulation controller; Said constant voltage power suspply is supplied power to said clipping amplifier.
The present invention also provides a kind of intelligence insulation method for supervising based on aluminum electrolysis multifunctional overhead crane intelligence insulation control monitor unit, carries out according to the following steps:
Voltage between step 1, inspection metal target body;
Step 4, its aviation value is repeatedly measured and asked to the voltage between the metal target body;
Step 6, when the impedance between the metal target body when setting impedance, said output driving governor output relay on-off signal control short circuit relay is closed, execution in step one after accomplishing; Otherwise, execution in step seven;
Preferable, the present invention also comprises the step of said detection insulation controller memory failure self check; When detecting fault, said detection insulation controller sends signal and gives said attention display.
Preferable, the present invention also comprises the step of said detection insulation controller A/D function self check; When detecting fault, said detection insulation controller sends signal and gives said attention display.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows: can detect the insulating power between two metallic objects accurately and reliably, low in energy consumption, Installation and Debugging are convenient, compare traditional detection method and reduced testing amount and more timely.
Description of drawings
The present invention will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the schematic circuit diagram of the embodiment of the invention one;
Fig. 2 is the schematic circuit diagram of the embodiment of the invention two;
Fig. 3 is the diagram of circuit of intelligence insulation method for supervising.
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that the specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Embodiment one: shown in Fig. 1, a kind of aluminum electrolysis multifunctional overhead crane intelligence insulation control monitor unit comprises constant voltage power suspply 1, and constant voltage power suspply is connected with combined-voltage o controller 2, and combined-voltage o controller 2 is connected with measurement input system 3; Measuring input system 3 is connected with isolation sensor 4; Isolation sensor 4 is connected with detection insulation controller 5; Constant voltage power suspply 1 is connected with detection insulation controller 5 with isolation sensor 4 respectively; Combined-voltage o controller 2 is connected with detection insulation controller 5; Constant voltage power suspply 1 is used for to combined-voltage o controller 2, isolation sensor 4 and detects insulation controller 5 power supply is provided, and combined-voltage o controller 2 is used for measuring the voltage difference that input system 3 is used to detect the metal target body to treating that the metal target body applies voltage; And send induced voltage to isolation sensor 4; Isolation sensor 4 converts induced voltage to the available voltage signal and also sends this available voltage signal to detection insulation controller 5, and detection insulation controller 5 reception voltage signals carry out A/D with the voltage signal that receives to be changed, and detects to insulate controller 5 control combined-voltage o controllers 2 output voltages to the metal target body.
Discharge signal cable to measuring input system 3 from each insulating point of multifunction crane; Overhead traveling crane is insulated the induced voltage that produces between layer two metallic object that separates under normal operation, be input to isolation sensor 4 by the shielding measuring line; Make it convert the available voltage signal to; Isolation sensor 4 is sent into this signal and is detected insulation controller 5, detects in the insulation controller 5 and establishes A/D converter, detects insulation controller 5 the available voltage signal is carried out the A/D conversion; When the insulating barrier decreasing insulating between the metal target body causes two metallic object short circuits; Difference of potential is zero between the metal target body, and whether the A/D conversion value also is zero in the detection insulation this moment controller 5, have short-circuit conditions to occur in order to verify; Combined-voltage in detection insulation controller 5 control combined-voltage o controllers 2 will install outputs on the metal target body, and the A/D conversion value still is that the decreasing insulating of zero insulating barrier between the confirmation metal target body causes short circuit.
Embodiment two: as shown in Figure 2, the structure of present embodiment and embodiment 1 are basic identical, and different is: detect insulation controller 5 and be connected with output driving governor 6; Constant voltage power suspply 1 is connected with output driving governor 6; Constant voltage power suspply 1 provides power supply to output driving governor 6; Detect insulation controller 5 control output driving governors 6 output relay on-off signals.
Programmable logic controller (PLC) (the Programmable Logic Controller of output driving governor 6 and aluminum electrolysis multifunctional overhead crane; PLC) 10 input end connects, and is provided with short circuit relay 11 between output driving governor 6 and the programmable logic controller (PLC) 10; The closure of output driving governor 6 control short circuit relays 11; Programmable logic controller (PLC) 10 receives through output driving governor 6 and detects the insulating monitoring control signal that insulation controller 5 sends.
Output driving governor 6 is connected with the input end of attention display 7 through alarm relay 8; The closure of output driving governor 6 control alarm relaies 8.
Be provided with clipping amplifier 9 between isolation sensor 4 and the detection insulation controller 5; The mouth of isolation sensor 4 is connected with the input end of clipping amplifier 9, and the mouth of clipping amplifier 9 is connected with the input end that detects insulation controller 5; Constant voltage power suspply 1 is to clipping amplifier 9 power supplies.
Isolation sensor 4 is sent into the available voltage signal and is detected insulation controller 5 through clipping amplifier 9; The decreasing insulating of the insulating barrier between the metal target body and cause short circuit time output driving governor 6 output relay on-off signals control alarm relay 8 and short circuit relay 11 closures; Detect insulation controller 5 and output signal to attention display 7 and programmable logic controller (PLC) 10, attention display 7 demonstrates alerting signal, and programmable logic controller (PLC) 10 is according to the signal of the receiving warning of insulating; The insulation fault point is presented on the operator's compartment screen; And stop the aluminum electrolysis multifunctional overhead crane operation, behind failure recovery, overhead traveling crane resumes operation.
Because aluminum electrolysis multifunctional overhead crane has a plurality of insulating point, between output driving governor 6 and the programmable logic controller (PLC) can there be a plurality of the connection, transmit the insulating monitoring control signal between the respective objects metallic object respectively.
Embodiment three: as shown in Figure 3, a kind of intelligence insulation method for supervising based on aluminum electrolysis multifunctional overhead crane intelligence insulation control monitor unit, carry out according to the following steps:
Detect insulation controller 5 and carry out the memory failure self check; When detecting fault, detect insulation controller 5 and send signal to attention display 7.
Detect insulation controller 5 and carry out the self check of A/D function; When detecting fault, detect insulation controller 5 and send signal to attention display 7.
Discharge signal cable to measuring input system 3 from each insulating point of multifunction crane; Overhead traveling crane is under normal operation; Be insulated the induced voltage that produces between layer two metallic object that separates; Be input to isolation sensor 4 by the shielding measuring line; Make it convert the available voltage signal to, isolation sensor 4 is sent into this signal and is detected insulation controller 5, detects in the insulation controller 5 and establishes A/D converter; Detect insulation controller 5 the available voltage signal is carried out the A/D conversion; Useful signal and the inspection-free voltage of setting after the conversion are compared, and when the voltage between the metal target body during greater than inspection-free voltage, the voltage between the metal target body is also reexamined in output driving governor 6 output relay on-off signals control short circuit relay 11 and alarm relay 8 disconnections; Detect 5 outputs of insulation controller and detect the control signal between the metal target body; Its aviation value is repeatedly measured and asked to the voltage that detects between 5 pairs of metal target bodies of insulation controller, calculates the impedance between the metal target body according to the voltage between the metal target body, when the impedance between the metal target body when setting impedance; Output driving governor 6 output relay on-off signals control short circuit relay 11 is closed also to reexamine the voltage between the metal target body, and output driving governor 6 output relay on-off signals control short circuit relay 11 breaks off and judges that impedance between the metal target body is whether less than 10 times of setting impedance; When the impedance between the metal target body when setting 10 times of impedance; Export driving governor 6 output relay on-off signals control alarm relay 8 closures and also reexamine the voltage between the metal target body, otherwise output driving governor 6 output relay on-off signals are controlled alarm relay 8 disconnections and reexamined the voltage between the metal target body.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (8)
1. an aluminum electrolysis multifunctional overhead crane intelligence insulation control monitor unit is characterized in that: comprise constant voltage power suspply (1); Said constant voltage power suspply is connected with combined-voltage o controller (2); Said combined-voltage o controller (2) is connected with measurement input system (3); Said measurement input system (3) is connected with isolation sensor (4); Said isolation sensor (4) is connected with detection insulation controller (5); Said constant voltage power suspply (1) is connected with said detection insulation controller (5) with said isolation sensor (4) respectively; Said combined-voltage o controller (2) is connected with said detection insulation controller (5);
Said constant voltage power suspply (1) is used for to said combined-voltage o controller (2), said isolation sensor (4) and said detection insulation controller (5) power supply being provided;
Said combined-voltage o controller (2) is used for to treating that the metal target body applies voltage;
Said measurement input system (3) is used to detect the voltage difference of metal target body, and sends induced voltage to said isolation sensor (4);
Said isolation sensor (4) converts induced voltage the available voltage signal to and sends this available voltage signal to said detection insulation controller (5);
Said detection insulation controller (5) receives voltage signal the voltage signal that receives is carried out the A/D conversion; Said detection insulation controller (5) control combined-voltage o controller (2) output voltage is to the metal target body.
2. aluminum electrolysis multifunctional overhead crane intelligence insulation control monitor unit according to claim 1, it is characterized in that: said detection insulation controller (5) is connected with output driving governor (6); Said constant voltage power suspply (1) is connected with said output driving governor (6); Said constant voltage power suspply (1) provides power supply to said output driving governor (6); Said detection insulation controller (5) control said output driving governor (6) output relay on-off signal.
3. aluminum electrolysis multifunctional overhead crane intelligence insulation control monitor unit according to claim 2, it is characterized in that: said output driving governor (6) is connected with the input end of programmable logic controller (PLC) (10); Be provided with short circuit relay (11) between said output driving governor (6) and the said programmable logic controller (PLC) (10); Said output driving governor (6) is controlled the closure of said short circuit relay (11); Said programmable logic controller (PLC) (10) receives the signal that said detection insulation controller (5) sends through output driving governor (6).
4. according to claim 1,2 or 3 described aluminum electrolysis multifunctional overhead crane intelligence insulation control monitor units, it is characterized in that: said output driving governor (6) is connected with the input end of attention display (7) through alarm relay (8); Said output driving governor (6) is controlled the closure of said alarm relay (8).
5. aluminum electrolysis multifunctional overhead crane intelligence insulation control monitor unit according to claim 4 is characterized in that: be provided with clipping amplifier (9) between said isolation sensor (4) and the said detection insulation controller (5); The mouth of said isolation sensor (4) is connected with the input end of said clipping amplifier (9), and the mouth of said clipping amplifier (9) is connected with the input end of said detection insulation controller (5); Said constant voltage power suspply (1) is supplied power to said clipping amplifier (9).
6. intelligence insulation method for supervising based on aluminum electrolysis multifunctional overhead crane intelligence insulation control monitor unit is characterized in that may further comprise the steps:
Voltage between step 1, inspection metal target body;
Step 2, when the voltage between the metal target body during greater than inspection-free voltage, said output driving governor (6) output relay on-off signal control short circuit relay (11) breaks off execution in step one after the completion with alarm relay (8); Otherwise execution in step three;
Step 3, said detection insulation controller (5) output detect the control signal between the metal target body;
Step 4, its aviation value is repeatedly measured and asked to the voltage between the metal target body;
Step 5, calculate the impedance between the metal target body according to the voltage between the metal target body;
Step 6, when the impedance between the metal target body when setting impedance, said output driving governor (6) output relay on-off signal control short circuit relay (11) closure, execution in step one after accomplishing; Otherwise, execution in step seven;
Step 7, said output driving governor (6) output relay on-off signal control short circuit relay (11) breaks off and judges that impedance between the metal target body is whether less than 10 times of setting impedance; When the impedance between the metal target body when setting 10 times of impedance, said output driving governor (6) output relay on-off signal control alarm relay (8) closure, execution in step one after accomplishing; Otherwise said output driving governor (6) output relay on-off signal control alarm relay (8) breaks off, execution in step one after accomplishing.
7. intelligence insulation method for supervising according to claim 6 is characterized in that: the step that also comprises the memory failure self check of said detection insulation controller (5); When detecting fault, said detection insulation controller (5) sends signal and gives said attention display (7).
8. according to claim 6 or 7 described intelligence insulation method for supervising, it is characterized in that: the step that also comprises the self check of said detection insulation controller (5) A/D function; When detecting fault, said detection insulation controller (5) sends signal and gives said attention display (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110370556.6A CN102502415B (en) | 2011-11-21 | 2011-11-21 | Intelligent insulation monitoring device for multifunctional aluminum electrolysis crown block and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110370556.6A CN102502415B (en) | 2011-11-21 | 2011-11-21 | Intelligent insulation monitoring device for multifunctional aluminum electrolysis crown block and method |
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| CN102502415A true CN102502415A (en) | 2012-06-20 |
| CN102502415B CN102502415B (en) | 2014-05-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104678209A (en) * | 2014-12-17 | 2015-06-03 | 沈阳铝镁设计研究院有限公司 | Multifunctional overhead crane insulation monitoring system for electrolytic workshops |
| CN107366006A (en) * | 2017-09-05 | 2017-11-21 | 广西南宁凡成电子科技有限公司 | Electrolytic aluminum crane block insulation detecting method and detection means |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678209A (en) * | 2014-12-17 | 2015-06-03 | 沈阳铝镁设计研究院有限公司 | Multifunctional overhead crane insulation monitoring system for electrolytic workshops |
| CN107366006A (en) * | 2017-09-05 | 2017-11-21 | 广西南宁凡成电子科技有限公司 | Electrolytic aluminum crane block insulation detecting method and detection means |
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| CN102502415B (en) | 2014-05-14 |
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