CN104678209A - Multifunctional overhead crane insulation monitoring system for electrolytic workshops - Google Patents
Multifunctional overhead crane insulation monitoring system for electrolytic workshops Download PDFInfo
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- CN104678209A CN104678209A CN201410788015.9A CN201410788015A CN104678209A CN 104678209 A CN104678209 A CN 104678209A CN 201410788015 A CN201410788015 A CN 201410788015A CN 104678209 A CN104678209 A CN 104678209A
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Abstract
The invention discloses a multifunctional overhead crane insulation monitoring system for electrolytic workshops, which comprises a PLC (programmable logic controller), a human-machine interface, an insulation monitoring controller and a precision regulated power supply; the important insulated parts, which need to be monitored, of an electrolytic overhead crane are respectively connected to the insulation monitoring controller, and insulated wires are then led out to connect to the PLC. The insulation monitoring controller uses shielded measurement input signals to acquire the induced voltage produced between each equipment and each structure of the multifunctional overhead crane in real time, signals are then inputted into the PLC by a high-precision, high-reliability isolated sensor, the PLC carries out arithmetic and logic operation according to a preset program, consequently, a real-time monitoring and alarm function can be implemented on the insulation levels of each equipment and each mechanism of the electrolytic multifunctional overhead crane, and protective action can be implemented on the whole overhead crane in time. Monitoring is accurate, the labor intensity of maintainers is decreased, time is shortened for maintainers, and the multifunctional overhead crane insulation monitoring system for electrolytic workshops ensures that operators cannot be injured and equipment cannot be damaged when insulation is destroyed.
Description
Technical field
The present invention relates to a kind of insulating monitoring technical field, particularly relate to potroom multifunction crane insulation monitoring and warning device.
Background technology
Electrolysis multi-function crane is as the visual plant in Aluminum Electrolysis Production process, the work such as it carries that Aluminum Electrolysis Production goes out aluminium, changes anode, crust breaking, scarfing cinder, bus promote, reinforced insulation, its operational reliability directly has influence on the normal production of whole electrolytic series.In Aluminium Electrolysis process, multifunction crane crust breaking, change anode, go out aluminium, scarfing cinder, anode bus promotes and all directly contacts with Bath, and each mechanism of multifunction crane and running environment are all steel structure materials, multifunction crane insulation status only utilizes megohmmeter to carry out insulation measurement to each syndeton by human at periodic intervals, and in daily spot check is safeguarded, deashing is carried out to overhead traveling crane, the insulation status of each mechanism can not be detected in real time, if the insulation of multifunction crane somewhere mechanism is bad to the metal structure insulation status of main beam of overhead travelling crane, D.C. high-current ground connection can be caused to cause large device damage or human casualty accident, therefore the insulation that guarantee multifunction crane is inter-agency is most important.
Summary of the invention
The present invention is for solving the problem, provide a kind of potroom multifunction crane insulation monitoring and warning device, effect is can the insulation situation of each equipment of Real-Time Monitoring multifunction crane and each structure, and judge whether the insulation of each equipment of multifunction crane and each structure is destroyed according to the insulating resistance value detected, determine to insulate simultaneously and the position of destruction occurs, to notify that maintainer removes fault in time, guarantee the safety of operating personnel and the normal operation of equipment.
The technical solution adopted in the present invention is:
A kind of potroom multifunction crane type insulation monitoring system, electrolysis multi-function crane by multifunction crane girder, tool cart, operation room, go out the several equipment of aluminium dolly, more anode changing device, blanking system, crust breaker, slag cleaning device and electric block and form;
Multifunction crane type insulation monitoring system is primarily of PLC, man-machine interface, insulating monitoring control device, accurate stabilized voltage supply part composition:
Described insulating monitoring control device comprises shield EMC measurement input block, isolation sensor, exports driving governor, combined-voltage o controller;
Electrolysis multi-function crane is also provided with the insulating monitoring control device be connected with the said equipment;
Each apparatus insulated position is connected with insulating monitoring control device respectively, will be welded to connect a little between the insulation course of above-mentioned position, draws shield EMC measurement line access isolation sensor successively from tie point, then draws insulated wire access PLC from isolation sensor output point;
Under normal operation, each equipment of electrolysis multi-function crane is separated by insulation course, by the induced voltage signal produced between each equipment (metallic object) that insulation course separates, be delivered to isolation sensor through shield EMC measurement input block, induced voltage signal converted to effective value voltage signal; It is 1 that voltage signal is sent to PLC A/D conversion value through restrict margin amplifying circuit;
Insulation course between certain two equipment sustains damage and causes insulation breakdown between two equipment, makes potential difference (PD) between two equipment be zero; Be delivered to isolation sensor through shield EMC measurement input block, induced voltage signal converted to effective value voltage signal; It is also zero that voltage signal is sent to PLC A/D conversion value through restrict margin amplifying circuit;
Whether further checking has short-circuit conditions, and PLC outputs control signals to combined-voltage o controller, and combined-voltage outputs on two tested equipment by this combined-voltage o controller; If PLC A/D conversion value is still zero, then confirm that the insulation course between two metallic objects destroys and short circuit, now export driving governor and send signal; Carry out alarm indication by man-machine interface, and demonstrate two device locations of insulation breakdown, alert process.
Advantage of the present invention is:
The present invention can realize real-time monitoring to each equipment of electrolysis multi-function crane and each mechanism's dielectric level, warning function; and realize the overall protection act in time of overhead traveling crane in the controls; monitoring accurately; decrease maintainer's labour intensity and time; improve the automation function of multifunction crane; operating personnel's personal injury and device damage can not be caused, for the normal operation of the production of electrolytic series normal safe and multifunction crane provides guarantee when ensureing insulation breakdown.
Accompanying drawing explanation
Fig. 1 is electrolysis multi-function crane insulation monitoring and warning device composition frame chart.
Fig. 2 is electrolysis multi-function crane insulation monitoring and warning device connection diagram.
Specific implementation method
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, 2, a kind of potroom multifunction crane type insulation monitoring system, electrolysis multi-function crane by multifunction crane girder 1, tool cart 2, operation room 3, go out aluminium dolly 4, more anode changing device 5, blanking system 6, crust breaker 7, slag cleaning device 8 and the several equipment of electric block 9 and form;
Multifunction crane type insulation monitoring system forms primarily of following part: PLC, man-machine interface, insulating monitoring control device 10, accurate stabilized voltage supply are formed; Accurate stabilized voltage supply commercial products.
Described insulating monitoring control device 10 comprises shield EMC measurement input block, isolation sensor, exports driving governor, combined-voltage o controller;
Electrolysis multi-function crane is also provided with the insulating monitoring control device 10 be connected with the said equipment;
Each apparatus insulated position is connected with insulating monitoring control device 10 respectively, to be welded to connect a little between the insulation course of above-mentioned position, draw shield EMC measurement line from tie point and access isolation sensor successively, then draw insulated wire access PLC from isolation sensor output point;
Under normal operation, each equipment of electrolysis multi-function crane is separated by insulation course, by the induced voltage signal produced between each equipment metallic object that insulation course separates, be delivered to isolation sensor through shield EMC measurement input block, induced voltage signal converted to effective value voltage signal; Voltage signal is sent to PLC (in set A/D converter) A/D conversion value as 1 through restrict margin amplifying circuit (available circuit).
Insulation course between certain two equipment sustains damage and causes insulation breakdown between two equipment, makes potential difference (PD) between two equipment be zero; Be delivered to isolation sensor through shield EMC measurement input block, induced voltage signal converted to effective value voltage signal; It is also zero that voltage signal is sent to PLC A/D conversion value through restrict margin amplifying circuit;
Whether further checking has short-circuit conditions, and PLC outputs control signals to combined-voltage o controller, and combined-voltage outputs on two tested equipment by this combined-voltage o controller; If PLC A/D conversion value is still zero, then confirm that the insulation course between two metallic objects destroys and short circuit, now export driving governor and send signal; PLC carries out arithmetic sum logical operation by the program preset, and is fed back to by insulation monitoring data in man-machine interface, mainly realizes the monitoring of dielectric level, warning and parking function.Carry out alarm indication by man-machine interface, and demonstrate two device locations of insulation breakdown, alert process.
For realizing the gamut monitoring of apparatus insulated situation, signal source energy grade and voltage endurance capability must reach high pressure rank, otherwise because feedback signal decay is excessive and the high voltage of electrolytic tank, cannot realize the real-time detection of apparatus insulated situation.
Described PLC, man-machine interface, insulating monitoring control device 10, accurate stabilized voltage supply are installed in MPV (Multi-Purpose Vehicle) operation room.
Described insulating monitoring control device 10 can the dielectric level of each equipment of continuous automatic inspection multifunction crane (metallic object), judges whether each equipment of multifunction crane (metallic object) insulation is destroyed by PLC simultaneously;
Described PLC can according to on-the-spot needs, the feeder number of the required detection of setting and each loop dielectric level alarming value, fault actions value; When there is apparatus insulated fault, automatically disconnecting multifunction crane by PLC output Controlling vertex and performing loop accordingly, ensureing the personal safety of operating personnel and the safety of multifunction crane equipment to greatest extent.
As shown in Figure 2, the important insulation course of multifunction crane has 8 places, electrolysis multi-function crane insulating monitoring control device 10 is utilized to realize detecting in real time and automatic protection functions, wherein main beam of overhead travelling crane and operation room, main beam of overhead travelling crane and tool cart, tool cart and more anode changing device, tool cart and blanking system, tool cart and crust breaker, tool cart and slag cleaning device, main beam of overhead travelling crane and electric block, main beam of overhead travelling crane with go out aluminium dolly and access insulating monitoring control device 10 respectively, to be welded to connect a little between the insulation course of above-mentioned position, shield EMC measurement line access controller isolation sensor is successively drawn from tie point, insulated wire access PLC is drawn again from controller output point.
According to the importance of sky mechanism of car insulation, when main beam of overhead travelling crane is with when going out aluminium dolly insulation fault, main beam of overhead travelling crane and tool cart insulation fault, main beam of overhead travelling crane and electric block insulation fault etc. seriously insulation breakdown occurs, PLC realizes multifunction crane scram according to logical program, main startup is not opened, PLC makes overhead traveling crane produce warning by program simultaneously, at this moment must stop, after eliminating insulation fault point, could continue to use multifunction crane.
Above-mentioned implementation content is to explanation of the present invention, instead of limitation of the invention, anyly all belongs to protection scope of the present invention to the structure after design proposal simple transformation provided by the present invention.
Claims (4)
1. a potroom multifunction crane type insulation monitoring system, electrolysis multi-function crane by multifunction crane girder (1), tool cart (2), operation room (3), go out aluminium dolly (4), more anode changing device (5), blanking system (6), crust breaker (7), slag cleaning device (8) and electric block (9) several equipment and form;
It is characterized in that:
Multifunction crane type insulation monitoring system is primarily of PLC, man-machine interface, insulating monitoring control device (10), accurate stabilized voltage supply part composition:
Described insulating monitoring control device (10) comprises shield EMC measurement input block, isolation sensor, exports driving governor, combined-voltage o controller;
Electrolysis multi-function crane is also provided with the insulating monitoring control device (10) be connected with the said equipment;
Each apparatus insulated position is connected with insulating monitoring control device (10) respectively, to be welded to connect a little between the insulation course of above-mentioned position, draw shield EMC measurement line from tie point and access isolation sensor successively, then draw insulated wire access PLC from isolation sensor output point;
Under normal operation, each equipment of electrolysis multi-function crane is separated by insulation course, by the induced voltage signal produced between each equipment that insulation course separates, be delivered to isolation sensor through shield EMC measurement input block, induced voltage signal converted to effective value voltage signal; It is 1 that voltage signal is sent to PLC A/D conversion value through restrict margin amplifying circuit;
Insulation course between certain two equipment sustains damage and causes insulation breakdown between two equipment, makes potential difference (PD) between two equipment be zero; Be delivered to isolation sensor through shield EMC measurement input block, induced voltage signal converted to effective value voltage signal; It is also zero that voltage signal is sent to PLC A/D conversion value through restrict margin amplifying circuit;
Whether further checking has short-circuit conditions, and PLC outputs control signals to combined-voltage o controller, and combined-voltage outputs on two tested equipment by this combined-voltage o controller; If PLC A/D conversion value is still zero, then confirm that the insulation course between two metallic objects destroys and short circuit, now export driving governor and send signal; Carry out alarm indication by man-machine interface, and demonstrate two device locations of insulation breakdown, alert process.
2. a kind of potroom multifunction crane type insulation monitoring system according to claim 1, is characterized in that:
For realizing the gamut monitoring of apparatus insulated situation, signal source energy grade and voltage endurance capability must reach high pressure rank, otherwise because feedback signal decay is excessive and the high voltage of electrolytic tank, cannot realize the real-time detection of apparatus insulated situation.
3. a kind of potroom multifunction crane type insulation monitoring system according to claim 1, is characterized in that:
Described PLC, man-machine interface, insulating monitoring control device (10), accurate stabilized voltage supply are installed in MPV (Multi-Purpose Vehicle) operation room.
4. a kind of potroom multifunction crane type insulation monitoring system according to claim 1, is characterized in that:
Whether described insulating monitoring control device (10) can the dielectric level of each equipment of continuous automatic inspection multifunction crane, judge that multifunction crane is each to be simultaneously apparatus insulatedly destroyed by PLC;
Described PLC can according to on-the-spot needs, the feeder number of the required detection of setting and each loop dielectric level alarming value, fault actions value; When there is apparatus insulated fault, automatically disconnecting multifunction crane by PLC output Controlling vertex and performing loop accordingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410788015.9A CN104678209A (en) | 2014-12-17 | 2014-12-17 | Multifunctional overhead crane insulation monitoring system for electrolytic workshops |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410788015.9A CN104678209A (en) | 2014-12-17 | 2014-12-17 | Multifunctional overhead crane insulation monitoring system for electrolytic workshops |
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| CN104678209A true CN104678209A (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410788015.9A Pending CN104678209A (en) | 2014-12-17 | 2014-12-17 | Multifunctional overhead crane insulation monitoring system for electrolytic workshops |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109507546A (en) * | 2018-11-06 | 2019-03-22 | 云南云铝涌鑫铝业有限公司 | The detection circuit of aluminium electrolytic cell crust-breaking cylinder and insulation detecting method based on pressure difference |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1865512A (en) * | 2006-04-24 | 2006-11-22 | 沈阳铝镁设计研究院 | Computer on-line insulating monitoring and alarming system of AC power supply device in aluminum electrolysis shop |
| CN201087073Y (en) * | 2007-08-08 | 2008-07-16 | 四川启明星铝业有限责任公司 | Aluminum electrolysis multifunctional traveling hoist |
| CN102502415A (en) * | 2011-11-21 | 2012-06-20 | 重庆大学 | Intelligent insulation monitoring device for multifunctional aluminum electrolysis crown block and method |
-
2014
- 2014-12-17 CN CN201410788015.9A patent/CN104678209A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1865512A (en) * | 2006-04-24 | 2006-11-22 | 沈阳铝镁设计研究院 | Computer on-line insulating monitoring and alarming system of AC power supply device in aluminum electrolysis shop |
| CN201087073Y (en) * | 2007-08-08 | 2008-07-16 | 四川启明星铝业有限责任公司 | Aluminum electrolysis multifunctional traveling hoist |
| CN102502415A (en) * | 2011-11-21 | 2012-06-20 | 重庆大学 | Intelligent insulation monitoring device for multifunctional aluminum electrolysis crown block and method |
Non-Patent Citations (1)
| Title |
|---|
| 潘玉仓: "智能绝缘监测装置在铝电解多功能天车的应用", 《材料与冶金学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109507546A (en) * | 2018-11-06 | 2019-03-22 | 云南云铝涌鑫铝业有限公司 | The detection circuit of aluminium electrolytic cell crust-breaking cylinder and insulation detecting method based on pressure difference |
| CN109507546B (en) * | 2018-11-06 | 2021-03-05 | 云南云铝涌鑫铝业有限公司 | Detection circuit of crust breaking cylinder of aluminum electrolytic cell and insulation detection method based on differential pressure |
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Application publication date: 20150603 |
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