CN2325400Y - Optical fiber device for checking thinkness of burner lining of blast furnace - Google Patents
Optical fiber device for checking thinkness of burner lining of blast furnace Download PDFInfo
- Publication number
- CN2325400Y CN2325400Y CN 97241674 CN97241674U CN2325400Y CN 2325400 Y CN2325400 Y CN 2325400Y CN 97241674 CN97241674 CN 97241674 CN 97241674 U CN97241674 U CN 97241674U CN 2325400 Y CN2325400 Y CN 2325400Y
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- China
- Prior art keywords
- optical fiber
- detector
- blast furnace
- light intensity
- thickness
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- Expired - Lifetime
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- Length Measuring Devices By Optical Means (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model provides an optical fiber device for checking the thickness of a burner lining of a blast furnace. The utility model is mainly composed of a computer 1, a time-domain reflectometer 2, a tree type coupler 3, an optical switch 4 and a sensor 5. The utility model is characterized in that an optical fiber caliper detector 7, an optical fiber intensity of light detector 8 and an optical fiber temperature probe 9 are arranged in the sensor 5. The optical fiber caliper detector arranged in the sensor 5 is connected with a corresponding optical switch 4. The other two detectors are connected with a respective system. The device collects probing and transmission in one and adopts a passive device. The utility model has the advantages that the device can carry out multipoint and multifunctional detection, is free from environmental intrusion and can measure exactly. The device also has simple structure and convenient maintenance.
Description
This device relates to the on-line measuring device instrument of the ablated back of a kind of blast furnace lining variation in thickness situation.
Before the utility model, the detection of blast furnace lining ablation situation, adopt pre-buried many thermocouple to carry out its deficiency mostly: the one, be active part; The 2nd, can not effectively reflect furnace lining ablation situation, measured data are inaccurate; Other has a kind of is the device that adopts electrical resistance method to measure, and this device not only is an active part, and complex process, and is difficult in maintenance, and can only measure shaft, not the energy measurement furnace bottom; Also have a kind ofly be that number of patent application is 94228802.5, name is called the technology of " blast furnace lining thickness gauge ", promptly adopt ultrasonic wave to detect, because the Primary Component that ultrasonic emitting receives is the semi-conductor receiving and transmitting unit, the phenomenon of its at high temperature normal generation and transmitter loose contact, cause prohibited data detection, influence work quality.
The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of that form by passive device, collection is surveyed be transmitted as one, multi-functional detection, and measure accurate, high temperature resistant, easy to maintenance, be suitable for any permission and lay furnace lining ablation detection device on the blast furnace of optical fiber.
The purpose of this utility model is achieved in that mainly by computer, time domain reflectometer, tree type coupling mechanism, photoswitch, the optical fiber that transmitter is formed detects the device of blast furnace lining thickness, be and detect the caliper detector of the ablated situation of furnace lining, detecting the optical fiber light intensity detector of furnace flame intensity and the detector of the interior temperature of detection stove is contained in the transmitter respectively, the thickness channel controller that is connected with lead with computer, the corresponding therewith optical fiber caliper detector of its corresponding interface joins, be connected with the light intensity channel controller with the light intensity measuring instrument that lead is connected with computer, the optical fiber light intensity detector is connected with the corresponding interface on the light intensity channel controller, be connected with the temperature channel controller with the temperature measuring set that lead is connected with computer, the fiber optic temperature detector is connected with the corresponding interface on the temperature channel controller.
During installation, this transmitter is embedded in the furnace lining, and vertical with the furnace wall, and becomes the tangential motion state arrangement with furnace charge.
Require height as accuracy of measurement, then optical fiber is wrapped in the groove of fire-resistant rod, the number of turn of being twined is directly proportional with the precision of system requirements; If the measuring accuracy that requires is not too high, fiber-coaxial can be imbedded in the hole that fire-resistant rod reserves in advance.
Its principle of work: time domain reflectometer sends the monopulse optical signal, and this pulse signal passes to the terminal of optical fiber caliper detector by tree type coupling mechanism, photoswitch, and this pulse signal by photoswitch and tree type coupling mechanism, turns back to time domain reflectometer through end reflection.The timed interval between signal that time domain reflectometer sends and the reflected signal that returns, i.e. reaction is the ablated situation signal of fire-resistant rod, and this signal is computer as calculated, just is the length after fire-resistant rod is ablated.Because when ablating, fire-resistant rod and furnace lining carry out synchronously, so the length after the fire-resistant excellent ablation also is the thickness of furnace lining after ablated.Duplicate detection is the changing conditions of lining thickness like this.Detection about furnace flame intensity and temperature, as calculated behind the machine gating measuring point, then optical fiber light intensity detector, fiber optic temperature detector then will be separately measured signal be transferred to light intensity measuring instrument and temperature measuring set respectively, and then be defeated by the data that computer can obtain the measuring point of wanting.
This device collects surveys and is transmitted as one, and adopts passive device, and is multiple spot, multi-functional detection, carries out data processing by computer, so be not subjected to ambient interference, makes that the detection data are accurate, simple in structure, easy to maintenance.Thereby guarantee effect has been played in the safe operation to blast furnace, is the desirable proofing unit of the ablated back of online blast furnace lining variation in thickness situation.
Description of drawings is as follows:
Fig. 1 is an optical fiber measurement blast furnace lining thickness apparatus structure formula synoptic diagram
Fig. 2 is sensor construction figure
Fig. 3 installs sectional view with blast furnace
Be described in further detail as follows below in conjunction with accompanying drawing: the optical fiber of being made up of computer 1, time domain reflectometer 2, tree type coupling mechanism 3, photoswitch 4, transmitter 5 detects the device of blast furnace lining thickness, for making that this device is a passive device, and collection is surveyed and is transmitted as one, makes sensitive detection parts with optical fiber.For reaching the ablated and temperature variations of flame intensity, liner of multi-functional detection blast furnace inside, optical fiber caliper detector 7, optical fiber light intensity detector 8 and fiber optic temperature detector 9 are housed in transmitter 5.The thickness channel controller 6 that is connected with computer 1 usefulness lead, the corresponding therewith optical fiber caliper detector 7 of its corresponding interface joins, the light intensity measuring instrument 11 that is connected with computer 1 usefulness lead is connected with light intensity channel controller 10, optical fiber light intensity detector 8 is connected with the corresponding interface on the light intensity channel controller 10, the temperature measuring set 13 that is connected with computer 1 usefulness lead is connected with temperature channel controller 12, and fiber optic temperature detector 9 is connected with the corresponding interface on the temperature channel controller 12.
During installation transmitter 5 is embedded in the furnace lining 14, and with furnace wall 15 vertical installations, become the tangential motion state arrangement with furnace charge.
For the data that make detection accurate, can accurately reflect furnace lining ablation situation, so the optical fiber caliper detector 7 in the transmitter 5 is wrapped on fire-resistant excellent 16 by optical fiber and with it and is made every the made groove 17 of a determining deviation, its groove " the interval and be to make in the optical fiber number of turn of 17 li windings of each groove according to accuracy requirement; the spacing between the general groove 17 is 10～30 millimeters, and the optical fiber number of turn is 5～20.The density of twining is big more, and then the data of Ce Lianging are accurate more.If not high, also can directly optical fiber be imbedded in fire-resistant excellent 16 the hole of reservation in advance for the data demand of measuring.
In order accurately to reflect situation in the whole furnace body, guarantee the blast furnace safe operation, same plane at furnace bottom, body of heater different heights is provided with several sensing points, imbed plurality of sensors 5 as requested respectively, wherein the optical fiber caliper detector 7 on each transmitter 5 is connected with corresponding photoswitch 4, and each photoswitch 4 is connected with corresponding joint on the tree type coupling mechanism 3.Corresponding light intensity channel controller 10, temperature channel controller 12 are connected respectively with separately for optical fiber light intensity detector 8, fiber optic temperature detector 9.
Principle of work; The single light pulse signal that sends from time domain reflectometer 2, be transferred to the terminal of optical fiber caliper detector 7 by tree type coupling mechanism 3, photoswitch 4, signal is at this moment through this end reflection, again by photoswitch 4, tree type coupling mechanism 3, turn back to time domain reflectometer 2, the signal that 2 pairs of time domain reflectometers send and the timed interval between the return signal measure, and obtain fire-resistant excellent 16 length, be transferred to computer 1 again and carry out data processing, just obtain the thickness data of furnace lining 14.Resulting fire-resistant excellent 16 length is the thickness of furnace lining after ablated, is because when furnace lining 14 was ablated, fire-resistant excellent 16 is ablated synchronously with it.This duplicate detection is the situation of blast furnace lining variation in thickness.Detection about furnace flame intensity and temperature, as calculated behind the machine 1 gating measuring point, then 9 of optical fiber light intensity detectors 8, fiber optic temperature detector separately measured signal be transferred to light intensity measuring instrument 11 and temperature measuring set 13 respectively, and then be defeated by the data that computer 1 can obtain wanting measuring point.
Claims (3)
1, a kind of optical fiber detects the device of blast furnace lining thickness, mainly by computer 1, time domain reflectometer 2, tree type coupling mechanism 3, photoswitch 4, transmitter 5 is formed, it is characterized in that being equipped with respectively in the transmitter 5 optical fiber caliper detector 7, optical fiber light intensity detector 8 and fiber optic temperature detector 9, the thickness channel controller 6 that is connected with computer 1 usefulness lead, its corresponding interface optical fiber caliper detector 7 corresponding with it joins, the light intensity measuring instrument 11 that is connected with computer 1 usefulness lead is connected with light intensity channel controller 10, optical fiber light intensity detector 8 is connected with the corresponding interface on the light intensity channel controller 10 by lead, the temperature measuring set 13 that is connected with computer 1 usefulness lead is connected with temperature channel controller 12, and fiber optic temperature detector 9 is connected with the corresponding interface on the temperature channel controller 12 by lead.
2, a kind of optical fiber according to claim 1 detects the device of blast furnace lining thickness, it is characterized in that optical fiber caliper detector 7 for optical fiber is wrapped in 17 li of fire-resistant excellent 16 grooves, perhaps fiber-coaxial is imbedded in fire-resistant excellent 16 the hole.
3, a kind of optical fiber according to claim 1 detects the device of blast furnace lining thickness, it is characterized in that the optical fiber light intensity detector 8 that is provided with in the transmitter 5, the length of optical fiber caliper detector 7 equate that with the thickness of blast furnace furnace wall 15 length of fiber optic temperature detector 9 is longer than the thickness of blast furnace cooling layer slightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97241674 CN2325400Y (en) | 1997-12-29 | 1997-12-29 | Optical fiber device for checking thinkness of burner lining of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97241674 CN2325400Y (en) | 1997-12-29 | 1997-12-29 | Optical fiber device for checking thinkness of burner lining of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2325400Y true CN2325400Y (en) | 1999-06-23 |
Family
ID=33951090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97241674 Expired - Lifetime CN2325400Y (en) | 1997-12-29 | 1997-12-29 | Optical fiber device for checking thinkness of burner lining of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2325400Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900696B (en) * | 2006-07-26 | 2010-05-26 | 中北大学 | Hollow core photon crystal fiber-optic fiber gas sensor |
| CN105890798A (en) * | 2016-06-12 | 2016-08-24 | 华电郑州机械设计研究院有限公司 | Distributed optical fiber corrosion detecting device for wet devulcanizing chimney |
| CN110954241A (en) * | 2019-12-09 | 2020-04-03 | 武汉理工大学 | Real-time monitoring device for lining state of steel ladle |
| CN111854668A (en) * | 2020-08-25 | 2020-10-30 | 中冶赛迪工程技术股份有限公司 | Blast furnace lining thickness calculation device and method based on distributed optical fiber temperature measurement |
| CN112985278A (en) * | 2021-02-22 | 2021-06-18 | 南方电网电力科技股份有限公司 | Method for measuring and calculating ash deposition thickness of high-temperature superheater of coal-fired power station boiler |
| CN113667784A (en) * | 2021-06-28 | 2021-11-19 | 鞍钢股份有限公司 | Method for judging erosion condition of blast furnace hearth |
-
1997
- 1997-12-29 CN CN 97241674 patent/CN2325400Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900696B (en) * | 2006-07-26 | 2010-05-26 | 中北大学 | Hollow core photon crystal fiber-optic fiber gas sensor |
| CN105890798A (en) * | 2016-06-12 | 2016-08-24 | 华电郑州机械设计研究院有限公司 | Distributed optical fiber corrosion detecting device for wet devulcanizing chimney |
| CN110954241A (en) * | 2019-12-09 | 2020-04-03 | 武汉理工大学 | Real-time monitoring device for lining state of steel ladle |
| CN110954241B (en) * | 2019-12-09 | 2021-05-18 | 武汉理工大学 | Real-time monitoring device for lining state of steel ladle |
| CN111854668A (en) * | 2020-08-25 | 2020-10-30 | 中冶赛迪工程技术股份有限公司 | Blast furnace lining thickness calculation device and method based on distributed optical fiber temperature measurement |
| CN112985278A (en) * | 2021-02-22 | 2021-06-18 | 南方电网电力科技股份有限公司 | Method for measuring and calculating ash deposition thickness of high-temperature superheater of coal-fired power station boiler |
| CN112985278B (en) * | 2021-02-22 | 2022-06-14 | 南方电网电力科技股份有限公司 | Method for measuring and calculating ash deposition thickness of high-temperature superheater of coal-fired power station boiler |
| CN113667784A (en) * | 2021-06-28 | 2021-11-19 | 鞍钢股份有限公司 | Method for judging erosion condition of blast furnace hearth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |