CN203807496U - Concentrated on-line monitoring system for environment coal gas of multiple blast furnaces - Google Patents
Concentrated on-line monitoring system for environment coal gas of multiple blast furnaces Download PDFInfo
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- CN203807496U CN203807496U CN201420128309.4U CN201420128309U CN203807496U CN 203807496 U CN203807496 U CN 203807496U CN 201420128309 U CN201420128309 U CN 201420128309U CN 203807496 U CN203807496 U CN 203807496U
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Abstract
The utility model discloses a concentrated on-line monitoring system for environment coal gas of multiple blast furnaces. The concentrated on-line monitoring system comprises a plurality of blast furnace main control chamber monitoring subsystems, wherein any blast furnace main control chamber monitoring subsystem is connected with a switchboard through a plurality of stages of optical fiber transceivers; the switchboard is connected with a safety section monitoring subsystem and a factory dispatching room monitoring subsystem respectively; any blast furnace main control chamber monitoring subsystem comprises a monitoring computer, a PLC (programmable logic control) unit and a plurality of on-spot detection units connected with the PLC unit; any on-spot detection unit connected with the PLC comprises a coal gas alarm device and an isolation transducer. According to the concentrated on-line monitoring system for the environment coal gas of the multiple blast furnaces, the monitoring distance is lengthened, so that the coal gas amounts of all the blast furnaces can be displayed concentratively, and sound alarming can be realized; furthermore, safety supervision personnel can perform concentrated monitoring so as to pay attention, and personal injuries and equipment accidents are prevented.
Description
Technical field
The utility model belongs to blast furnace production safety monitoring field, and particularly, the utility model relates to a kind of many blast furnace environment coal gas and concentrates on line monitoring system.
Background technology
In blast-furnace smelting is produced, due to the operation of blast furnace inner high voltage and blast furnace sealing, cause the larger coal gas amount of existence in the regional environment such as blast furnace, stokehold, furnace roof, in operation process, there is potential danger in people.And under normal circumstances, blast furnace each several part is left unguarded, likely cause the serious leakage situation everywhere such as body of heater, cause human casualty accident and great equipment breakdown.
Utility model content
The purpose of this utility model is, provide a kind of many blast furnace environment coal gas to concentrate on line monitoring system, this Monitoring systems can allow safety manager understand the coal gas regional environment gas content situation of each blast furnace within the scope of whole iron work, to the supervision that exercises supervision of the large region of coal gas, avoid occurring operating personnel's gas poisoning and great equipment breakdown.
For achieving the above object, the utility model has adopted following technical scheme:
A kind of many blast furnace environment coal gas concentrate on line monitoring system, described on-line monitoring system comprises several blast furnace master control room monitoring subsystems, described arbitrary blast furnace master control room monitoring subsystem is connected with exchange board by some grades of fiber optical transceivers, and described exchange board is connected with factory operation department monitoring subsystem with Safety Section monitoring subsystem respectively;
Described arbitrary blast furnace master control room monitoring subsystem comprises monitoring computer, PLC unit and several on-site detecting units being connected with PLC, and described arbitrary on-site detecting unit being connected with PLC comprises gas leak detector and isolating transmitter;
In described arbitrary blast furnace master control room monitoring subsystem, establish the coal gas amount alarming value corresponding to arbitrary on-site detecting unit being connected with PLC, and can realize audible alarm;
Described monitoring computer is for showing the gas content that gas leak detector detects.
Preferably, described PLC unit adopts siemens S7-300 type, and equipped power module, CPU module, analog input module and ethernet module, detects picture making and adopts WINCC software.
Preferably, described blast furnace master control room Monitor And Control Subsystem is furnished with CP5611 address card, and CP5611 address card and PLC CPU module PROFIBUS-DP interface direct direct by PROFIBUS cable and PLC connects in succession, realizes PROFIBUS bus communication.
Preferably, described gas leak detector adopts fixed gas leak detector, and this gas leak detector has 4-20mA analog output function.
Preferably, described some grades of fiber optical transceivers, adopt optical cable transmission, have increased the transmission range of monitoring, have realized centralized detecting.
Several blast furnace master control room monitoring subsystems described in the utility model can be two blast furnaces, can be to be also four blast furnaces etc. according to practical situation.
Some grades of fiber optical transceivers described in the utility model, can be one-level, and this one-level fiber optical transceiver is to use in pairs, and sending and receiving adopts a model, guarantees the reliability of transmitting-receiving.Simultaneously, in order to increase the transmission range of monitoring, can adopt more multi-level fiber optical transceiver, such as secondary, three grades etc.
On-site detecting unit described in the utility model can adopt 5, can comprise a gas leak detector and an isolating transmitter in arbitrary on-site detecting unit.Those skilled in the art can select the on-site detecting unit of other quantity as required, such as 8,10 etc.
The utility model also provides a kind of control method that concentrates on line monitoring system based on above-mentioned many blast furnace environment coal gas, said method comprising the steps of:
1) at stokehold, furnace roof, body of heater, furnace bottom, the install of hot-air furnace gas leak detector of blast furnace, gas leak detector is transformed into 4-20mA current signal by the environment gas content detecting and introduces isolating transmitter input terminus by cable;
2) by isolating transmitter, send to PLC again, PLC is presented at gas content on the monitoring computer of blast furnace master control room monitoring subsystem by CPU module arithmetic;
3) when isolating transmitter sends to PLC by 4-20mA current signal, by the ethernet module of PLC, this signal is passed through to fiber optical transceiver, optical cable, fiber optical transceiver, then by exchange board, signal is delivered to respectively to Safety Section's monitoring subsystem and factory's operation department monitoring subsystem.
The utility model can accomplish every blast furnace operation environment to carry out centralized supervisory control.Make safety supervision personnel shoot the arrow at the target, accomplish key area management and control, avoid occurring carbon monoxide poisoning security incident.When ought occur that coal gas amount is very large, can tentatively judge that the possibility that certain point leaks appears in blast furnace simultaneously, can remind worker to do further inspection, prevent that large equipment breakdown from occurring.
The utility model, with respect to prior art, has the following advantages:
1) can remote monitoring, understand in real time the coal gas amount of each blast furnace site environment, accomplish centralized supervisory control, pay close attention to.
2) adopt optical cable transmission, increased the transmission range of monitoring.
3) each blast furnace master control room is furnished with monitoring computer, can monitor in real time the coal gas amount of this blast furnace regional.
4) monitoring of environmental point can increase, and extended capability is more intense.
5) by PLC, programme and can show intuitively the coal gas amount of each regional environment.
6) by software, can different alarming values be set respectively to each monitoring point, when environment coal gas amount reaches set(ting)value, by monitoring computer audio amplifier, send warning.
Accompanying drawing explanation
Fig. 1 is the structure iron that the utility model concentrates on line monitoring system.
Embodiment
With the drawings and specific embodiments, the utility model is described in further detail below.
As shown in Figure 1, a kind of many blast furnace environment coal gas concentrate on line monitoring system, described on-line monitoring system comprises several blast furnace master control room monitoring subsystems, described arbitrary blast furnace master control room monitoring subsystem is connected with exchange board by some grades of fiber optical transceivers, and described exchange board is connected with factory operation department monitoring subsystem with Safety Section monitoring subsystem respectively;
Described arbitrary blast furnace master control room monitoring subsystem comprises monitoring computer, PLC unit and several on-site detecting units being connected with PLC, and described arbitrary on-site detecting unit being connected with PLC comprises gas leak detector and isolating transmitter;
In described arbitrary blast furnace master control room monitoring subsystem, establish the coal gas amount alarming value corresponding to arbitrary on-site detecting unit being connected with PLC, and can realize audible alarm;
Described monitoring computer is for showing the gas content that gas leak detector detects.
Gas leak detector adopts fixed gas leak detector, has display screen, can show instant coal gas amount, and has the output of coal gas amount 4-20mA signal.
In the stokehold of blast furnace everywhere, the key position such as furnace roof, body of heater, furnace bottom, hotblast stove installs gas leak detector, by cable, the coal gas analog signals of each gas leak detector introduced to the isolating transmitter input terminus of power distribution cabinet.
PLC power distribution cabinet is installed in configuration, alternating current 220V is installed in cabinet and is straightened stream 24V power supply, for isolating transmitter, does power supply; PLC unit adopts siemens S7-300 type, is equipped with power module, CPU module, ethernet communication module and analog input module, and according to the number of on-the-spot gas leak detector, configures the quantity of analog input module.8 configurable ethernet communication modules of gas leak detector.
At master control room, one of monitoring computer is installed, due to the close together of master control room and power distribution cabinet, therefore communication modes adopts PROFIBUS bus communication, master control room monitoring computer is installed CP5611 address card, by PROFIBUS cable, is connected with the CPU of PLC.
Ethernet communication module is connected with fiber optical transceiver by twisted-pair feeder, and fiber optical transceiver is installed on power distribution cabinet inside.
Between fiber optical transceiver, with optical cable, connect, increased the distance of communication.
Complex building end is installed the supporting fiber optical transceiver of each blast furnace, and fiber optical transceiver is connected with exchange board by Category-5 twisted pair.
In Safety Section and factory operation department, monitoring computer is installed, configuration ethernet card in monitoring computer, uses Category-5 twisted pair to be connected with the network interface card of monitoring computer by exchange board, realizes ethernet communication.
Monitored picture is made the WINCC system that adopts.
Coal gas amount alarming value is set respectively on monitoring computer, and warning can be carried out key monitoring according to practical situation after sending.
If there is the very large phenomenon of coal gas amount, can judge in time whether blast furnace system goes out a serious leakage situation, can remind worker to do further inspection to equipment, prevent that large equipment breakdown from occurring.
Several blast furnace master control room monitoring subsystems described in the present embodiment can be two blast furnaces, can be to be also four blast furnaces etc. according to practical situation.
Some grades of fiber optical transceivers described in the present embodiment, can be one-level, and this one-level fiber optical transceiver is to use in pairs, and sending and receiving adopts a model, guarantees the reliability of transmitting-receiving.Simultaneously, in order to increase the transmission range of monitoring, can adopt more multi-level fiber optical transceiver, such as secondary, three grades etc.
On-site detecting unit described in the present embodiment can adopt 5, can comprise a gas leak detector and an isolating transmitter in arbitrary on-site detecting unit.Those skilled in the art can select the on-site detecting unit of other quantity as required, such as 8,10 etc.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described.Although the utility model is had been described in detail with reference to embodiment, will be understood by those skilled in the art that, the technical solution of the utility model is modified or is equal to replacement, do not depart from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (5)
1. one kind many blast furnace environment coal gas concentrate on line monitoring system, it is characterized in that, described on-line monitoring system comprises several blast furnace master control room monitoring subsystems, described arbitrary blast furnace master control room monitoring subsystem is connected with exchange board by some grades of fiber optical transceivers, and described exchange board is connected with factory operation department monitoring subsystem with Safety Section monitoring subsystem respectively;
Described arbitrary blast furnace master control room monitoring subsystem comprises monitoring computer, PLC unit and several on-site detecting units being connected with PLC, and described arbitrary on-site detecting unit being connected with PLC comprises gas leak detector and isolating transmitter;
In described arbitrary blast furnace master control room monitoring subsystem, establish the coal gas amount alarming value corresponding to arbitrary on-site detecting unit being connected with PLC, and can realize audible alarm;
Described monitoring computer is for showing the gas content that gas leak detector detects.
2. many blast furnace environment coal gas according to claim 1 concentrate on line monitoring system, it is characterized in that, described PLC unit adopts siemens S7-300 type, and equipped power module, CPU module, analog input module and ethernet module, detects picture making and adopts WINCC software.
3. many blast furnace environment coal gas according to claim 1 concentrate on line monitoring system, it is characterized in that, described blast furnace master control room monitoring subsystem is furnished with CP5611 address card, CP5611 address card and PLC CPU module PROFIBUS-DP interface direct direct by PROFIBUS cable and PLC connects in succession, realizes PROFIBUS bus communication.
4. many blast furnace environment coal gas according to claim 1 concentrate on line monitoring system, it is characterized in that, described gas leak detector adopts fixed gas leak detector, and this gas leak detector has 4-20mA analog output function.
5. many blast furnace environment coal gas according to claim 1 concentrate on line monitoring system, it is characterized in that, described multi-stage fiber transceiver, adopts optical cable transmission, have increased the transmission range of monitoring, have realized concentrated monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420128309.4U CN203807496U (en) | 2014-03-20 | 2014-03-20 | Concentrated on-line monitoring system for environment coal gas of multiple blast furnaces |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420128309.4U CN203807496U (en) | 2014-03-20 | 2014-03-20 | Concentrated on-line monitoring system for environment coal gas of multiple blast furnaces |
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| CN203807496U true CN203807496U (en) | 2014-09-03 |
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| CN201420128309.4U Expired - Fee Related CN203807496U (en) | 2014-03-20 | 2014-03-20 | Concentrated on-line monitoring system for environment coal gas of multiple blast furnaces |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866069A (en) * | 2014-03-20 | 2014-06-18 | 莱芜钢铁集团有限公司 | Centralized online monitoring system of multiple blast furnaces coal gas environment and control method thereof |
| CN104811471A (en) * | 2015-01-27 | 2015-07-29 | 安阳钢铁股份有限公司 | Network sharing gas alarm multi-level monitoring system |
-
2014
- 2014-03-20 CN CN201420128309.4U patent/CN203807496U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866069A (en) * | 2014-03-20 | 2014-06-18 | 莱芜钢铁集团有限公司 | Centralized online monitoring system of multiple blast furnaces coal gas environment and control method thereof |
| CN104811471A (en) * | 2015-01-27 | 2015-07-29 | 安阳钢铁股份有限公司 | Network sharing gas alarm multi-level monitoring system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20170320 |
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| CF01 | Termination of patent right due to non-payment of annual fee |