CN204359900U - The on-line insulation monitoring device that TFT-LCD glass furnace and passage are built - Google Patents
The on-line insulation monitoring device that TFT-LCD glass furnace and passage are built Download PDFInfo
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- CN204359900U CN204359900U CN201420851485.0U CN201420851485U CN204359900U CN 204359900 U CN204359900 U CN 204359900U CN 201420851485 U CN201420851485 U CN 201420851485U CN 204359900 U CN204359900 U CN 204359900U
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Abstract
The on-line insulation monitoring device that a kind of TFT-LCD glass furnace and passage are built, comprise the insulation values detected electrons circuit that processing sections steel structure different from glass connects respectively, the detection signal input control device that insulation values detected electrons circuit collects, controller external can with the monitoring display of its bidirectional data transfers and parameter setting module; Monitoring display and parameter setting module carry out numerical value display to the detection signal that controller inputs, and to the comparison parameter of controller output detections signal; Controller is the external alarm for pointing out detection signal comparative result also.The utility model is by the voltage of test under constant current state on steel structure, then the resistance that namely controller can calculate this section of steel structure is inputed to, by the setting value of detection signal and monitoring display and parameter setting module is compared, judge that whether the insulation values detecting steel structure is qualified, the alerting signal of answering is sent by alarm to underproof steel structure, and generates corresponding fault form.
Description
Technical field
The utility model relates to TFT-LCD glass furnace and passage builds servicing unit, is specifically related to the on-line insulation monitoring device of a kind of TFT-LCD glass furnace and passage construction.
Background technology
In TFT-LCD glass production, electric smelting solution kiln and platinum channel are of paramount importance key equipments, and the designed life of kiln and passage, generally at 2-3, must be carried out dismounting and rebuild after reaching designed life.Due to the electrical heating requirement of electric smelting solution kiln and platinum channel, install kiln and platinum channel each section of steel construction must insulation against ground good, prevent electric leakage, in order to avoid bring harm to personal safety and production quality control etc., the kiln built up and the insulation resistance value of passage require to be not less than 8M Ω.Due to glass furnace and channel body huge, periphery auxiliary equipment is numerous and diverse, in the construction of kiln and passage, pipeline, instrument, electrically, the construction operation simultaneously of each specialty such as air-conditioning, the wide people of operation mixes, the insulation against ground of kiln and passage steel construction is usually difficult to ensure, going wrong to do over again searches, and wastes time and energy.
At present in order to ensure the insulativity of steel structure in kiln and passage process of construction, require special messenger with insulating megger (1000V or the 500V) every day of test twice sooner or later and record, once pinpoint the problems, the shut-down inspection immediately of whole work post, until the shorted to earth point getting rid of steel structure.During insulating megger test, the relevant operating personnel in kiln and passage must stop operation away from, prevent megger voltage from hurting sb.'s feelings.Because the insulation against ground trouble spot of searching kiln and passage steel structure is extremely difficult, particularly when trouble spot occur in concealment part, interlayer or without obvious short dot time, pinpoint the problems a little extremely difficult especially, usually in order to search problem a little, require that the operation in test is for the previous period removed by relevant speciality work post, do over again, waste time and energy very much.
Utility model content
The purpose of this utility model is for above-mentioned defect of the prior art, the on-line insulation monitoring device that a kind of TFT-LCD glass furnace and passage are built is provided, online Insulation test can be carried out to the kiln in construction and passage steel structure, under the prerequisite not affecting personnel's construction, real-time monitoring insulation change, accomplish timely reminding alarm, minimizing is done over again, and saves manpower.
To achieve these goals, the technical solution adopted in the utility model is: comprise the insulation values detected electrons circuit that processing sections steel structure different from glass connects respectively, the detection signal input control device that insulation values detected electrons circuit collects, controller external can with the monitoring display of its bidirectional data transfers and parameter setting module; Described monitoring display and parameter setting module carry out numerical value display to the detection signal that controller inputs, and to the comparison parameter of controller output detections signal; Controller is the external alarm for pointing out detection signal comparative result also.
Described glass different processing sections steel structure comprises the steel structure being arranged on intensification section, settling section and temperature descending section that temperature in glass processing process raises successively.
Described insulation values detected electrons circuit comprises power supply circuit, for exporting the constant current source control circuit of steady current, for detecting the testing circuit of output end voltage size and the constant current value initialization circuit for arranging steady current size under steady current; Described testing circuit is connected to the input end of controller.
Described constant current value initialization circuit comprises the potentiometer for adjusting steady current size.
Described alarm is audible-visual annunciator.
Described controller is PLC.
Described monitoring display and parameter setting module adopt HMI monitoring display and parameter setting module.
Compared with prior art, the different processing sections steel structures of the utility model insulation values detected electrons circuit to glass detect respectively in real time, the detection signal input control device that insulation values detected electrons circuit collects, controller is by comparing the setting value of detection signal and monitoring display and parameter setting module, judge that whether the insulation values detecting steel structure is qualified, by controller external alarm, the alerting signal of answering is sent to underproof steel structure, and generates corresponding fault form.Because the output voltage of detection line is below safe voltage, therefore there is not potential safety hazard, do not affect staff's operation.The utility model detected by instant, and the destruction that in Timeliness coverage TFT-LCD glass furnace and passage process of construction, each work post insulate to each section of steel structure, decreases the time of people finder's problem, stopped to do over again.
Further, the utility model insulation values detected electrons circuit, by the voltage of test under constant current state on steel structure, then inputs to the resistance that namely controller can calculate this section of steel structure, R=U/I.
Further, the utility model adopts HMI monitoring display and parameter setting module, HMI monitoring display and parameter setting module can realize human-computer interaction interface, facilitate personnel check the same day or former arbitrary period Insulation monitoring situation, failure logging, patrol and examine the information such as setting.
Accompanying drawing explanation
Fig. 1 the utility model system architecture diagram;
Fig. 2 the utility model insulation values detected electrons circuit interconnect pattern;
Fig. 3 the utility model PLC control system electric hookup;
In accompanying drawing: I-insulation values detected electrons circuit; II-controller; III-monitoring display and parameter setting module; IV-alarm; A-power supply circuit; B-constant current source control circuit; C-testing circuit; D-constant current value initialization circuit; VR1-potentiometer.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See Fig. 1, the insulation values detected electrons circuit I that the steel structure that the utility model comprises intensification section, settling section and the temperature descending section raised successively with temperature in glass processing process in system architecture is connected respectively, the detection signal input control device II that insulation values detected electrons circuit I collects, controller II is PLC; Controller II external can with the monitoring display of its bidirectional data transfers and parameter setting module III; Monitoring display and parameter setting module III adopt HMI monitoring display and parameter setting module, and the detection signal that monitoring display and the parameter setting module III pair of controller II input carries out numerical value display, and to the comparison parameter of controller II output detections signal; Controller II is the external alarm IV for pointing out detection signal comparative result also, and alarm IV is audible-visual annunciator.
See Fig. 2, insulation values detected electrons circuit I comprises power supply circuit a, the external constant current source control circuit b for exporting steady current of power supply circuit a, for detecting the testing circuit c of output end voltage size and the constant current value initialization circuit d for arranging steady current size under steady current.Constant current value initialization circuit d wherein comprises the potentiometer VR1 for adjusting steady current size; Power supply circuit a exports 15V voltage by 7815 voltage stabilizing chips; Constant current source control circuit b, testing circuit c, constant current value initialization circuit d all comprises operational amplifier LM348; Testing circuit c is connected to the input end of controller II.
See Fig. 3, the utility model PLC control system controls each section of steel structure circling measurment, detect contact KA1, KA2, KA3 steel structure of intensification section, settling section and temperature descending section that temperature raises successively in external glass process respectively, collection signal inputs PLC by insulation values detected electrons circuit I, PLC simultaneously external HMI monitoring display and parameter setting module and audible-visual annunciator.
The utility model is by the voltage of test under constant current state on steel structure, then the resistance that namely controller can calculate this section of steel structure is inputed to, by the setting value of detection signal and monitoring display and parameter setting module is compared, judge that whether the insulation values detecting steel structure is qualified, the alerting signal of answering is sent by alarm to underproof steel structure, and generates corresponding fault form.Because the output voltage of detection line is below safe voltage, therefore there is not potential safety hazard, do not affect staff's operation.The utility model detected by instant, and the destruction that in Timeliness coverage TFT-LCD glass furnace and passage process of construction, each work post insulate to each section of steel structure, decreases the time of people finder's problem, stopped to do over again.
Claims (7)
1. the on-line insulation monitoring device of a TFT-LCD glass furnace and passage construction, it is characterized in that: comprise the insulation values detected electrons circuit (I) that processing sections steel structure different from glass connects respectively, the detection signal input control device (II) that insulation values detected electrons circuit (I) collects, controller (II) external can with the monitoring display of its bidirectional data transfers and parameter setting module (III); Described monitoring display and parameter setting module (III) carry out numerical value display to the detection signal that controller (II) inputs, and to the comparison parameter of controller (II) output detections signal; Controller (II) is the external alarm (IV) for pointing out detection signal comparative result also.
2. the on-line insulation monitoring device that the TFT-LCD glass furnace according to claims 1 and passage are built, is characterized in that: described glass different processing sections steel structure comprises the steel structure being arranged on intensification section, settling section and temperature descending section that temperature in glass processing process raises successively.
3. the on-line insulation monitoring device that the TFT-LCD glass furnace according to claims 1 and passage are built, it is characterized in that: described insulation values detected electrons circuit (I) comprises power supply circuit (a), for exporting the constant current source control circuit (b) of steady current, for detecting the testing circuit (c) of output end voltage size and constant current value initialization circuit (d) for arranging steady current size under steady current; Described testing circuit (c) is connected to the input end of controller (II).
4. the on-line insulation monitoring device that the TFT-LCD glass furnace according to claims 3 and passage are built, is characterized in that: described constant current value initialization circuit (d) comprises the potentiometer (VR1) for adjusting steady current size.
5. the on-line insulation monitoring device that the TFT-LCD glass furnace according to claims 1 and passage are built, is characterized in that: described alarm (IV) is audible-visual annunciator.
6. the on-line insulation monitoring device that the TFT-LCD glass furnace according to claims 1 and passage are built, is characterized in that: described controller (II) is PLC.
7. the on-line insulation monitoring device that the TFT-LCD glass furnace according to claims 1 and passage are built, is characterized in that: described monitoring display and parameter setting module (III) adopt HMI monitoring display and parameter setting module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420851485.0U CN204359900U (en) | 2014-12-27 | 2014-12-27 | The on-line insulation monitoring device that TFT-LCD glass furnace and passage are built |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420851485.0U CN204359900U (en) | 2014-12-27 | 2014-12-27 | The on-line insulation monitoring device that TFT-LCD glass furnace and passage are built |
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| Publication Number | Publication Date |
|---|---|
| CN204359900U true CN204359900U (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420851485.0U Active CN204359900U (en) | 2014-12-27 | 2014-12-27 | The on-line insulation monitoring device that TFT-LCD glass furnace and passage are built |
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| Country | Link |
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| CN (1) | CN204359900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970267A (en) * | 2017-03-17 | 2017-07-21 | 郑州旭飞光电科技有限公司 | Measuring method, controller and the control system of conductor insulation against ground resistance |
| CN110981166A (en) * | 2019-11-14 | 2020-04-10 | 成都中光电科技有限公司 | TFT-LCD glass substrate kiln electrode brick propulsion method |
-
2014
- 2014-12-27 CN CN201420851485.0U patent/CN204359900U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970267A (en) * | 2017-03-17 | 2017-07-21 | 郑州旭飞光电科技有限公司 | Measuring method, controller and the control system of conductor insulation against ground resistance |
| CN106970267B (en) * | 2017-03-17 | 2019-10-08 | 郑州旭飞光电科技有限公司 | Measurement method, controller and the control system of conductor insulation against ground resistance |
| CN110981166A (en) * | 2019-11-14 | 2020-04-10 | 成都中光电科技有限公司 | TFT-LCD glass substrate kiln electrode brick propulsion method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |