CN210741680U - Colorimetric temperature measuring device in steelmaking furnace without light splitting device - Google Patents
Colorimetric temperature measuring device in steelmaking furnace without light splitting device Download PDFInfo
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- CN210741680U CN210741680U CN201921932646.8U CN201921932646U CN210741680U CN 210741680 U CN210741680 U CN 210741680U CN 201921932646 U CN201921932646 U CN 201921932646U CN 210741680 U CN210741680 U CN 210741680U
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Abstract
The utility model relates to a no beam splitter's steelmaking furnace internal color comparison temperature measuring device, include: the device comprises a high-temperature-resistant light guide transistor, optical coupling equipment and a temperature measurement component, wherein one end of the high-temperature-resistant light guide transistor is arranged in a steelmaking furnace, the other end of the high-temperature-resistant light guide transistor is connected with the optical coupling equipment, and the optical coupling equipment is connected with the temperature measurement component through an optical fiber; the high-temperature-resistant light guide transistor comprises a ceramic outer tube, a light guide crystal rod is arranged in an inner cavity of the ceramic outer tube, and a support is filled between the light guide crystal rod and the inner wall of the ceramic outer tube. The utility model provides a colorimetric temperature measuring device in steelmaking furnace of no beam split device replaces traditional beam split device through optical coupling equipment, not only simple structure, with low costs, assembly simple moreover.
Description
Technical Field
The utility model relates to a temperature measuring equipment field especially relates to a colorimetric temperature measuring device in steelmaking furnace of no beam split device.
Background
The industrial temperature measurement and high-temperature section temperature measurement are usually carried out by a colorimetric temperature measurement method, the temperature measurement range is large, the anti-interference capability is high, for the colorimetric temperature measurement method, a light splitting device is usually required, and a filtering device is required to be added in front of a detector. The light splitting device conducts the luminous flux by adopting an optical fiber, and the light splitting system is composed of a plurality of semi-reflecting and semi-transparent lenses and optical lenses arranged behind the light splitting device to split the luminous flux into two paths.
The light splitting device has a complex structure and high cost, and is not beneficial to popularization and use.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the complicated, with high costs problem of current color comparison temperature measuring device beam split device structure, the technical scheme who adopts is: a colorimetric temperature measuring device in a steelmaking furnace without a light splitting device comprises: the device comprises a high-temperature-resistant light guide transistor, optical coupling equipment and a temperature measurement component, wherein one end of the high-temperature-resistant light guide transistor is arranged in a steelmaking furnace, the other end of the high-temperature-resistant light guide transistor is connected with the optical coupling equipment, and the optical coupling equipment is connected with the temperature measurement component through an optical fiber;
the high-temperature-resistant light guide transistor comprises a ceramic outer tube, a light guide crystal rod is arranged in an inner cavity of the ceramic outer tube, and a support is filled between the light guide crystal rod and the inner wall of the ceramic outer tube.
In a further improvement, the temperature measuring assembly comprises: the optical coupling device is connected with two single-mode optical fibers, and the two single-mode optical fibers are respectively connected with the photoelectric detectors.
In a further refinement, the optical coupling device comprises: the outer wall of bucket type, it has lens to inlay in the outer wall inner chamber, the outer wall is equipped with water cooling equipment outward.
The improved structure is characterized in that one end of the optical coupling device is in threaded connection with the inner wall of one end of the water cooling device, and the other end of the water cooling device is in threaded connection with the high-temperature-resistant light guide transistor.
The water cooling device is characterized in that a water inlet of the water cooling device is connected with a water pump through a pipeline, and the water pump is connected with a control device.
The improved water cooling device is characterized in that a temperature sensor is arranged on the water cooling device and connected with the control device.
The utility model has the advantages that:
the utility model provides a colorimetric temperature measuring device in steelmaking furnace of no beam split device, through optical coupling equipment direct luminous flux coupling to two optic fibre in, and need not subsequent beam split device, not only simple structure, with low costs, assembly are simple moreover.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic structural view of a temperature colorimetric and thermometric device in a steelmaking furnace according to the present invention;
fig. 2 is a schematic structural diagram of the high temperature resistant light-guiding transistor of the present invention;
fig. 3 is a schematic structural diagram of the optical coupling device of the present invention;
FIG. 4 is a schematic structural view of the water cooling apparatus of the present invention;
fig. 5 is a schematic view of the water cooling cycle of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the utility model can be understood according to specific situations by those skilled in the art.
As shown in figure 1, the utility model provides a colorimetric temperature measuring device in steelmaking furnace without a light splitting device, which comprises: the high-temperature-resistant light guide device comprises a high-temperature-resistant light guide transistor 1, an optical coupling device 2 and a temperature measurement component 3, wherein one end of the high-temperature-resistant light guide transistor 1 is arranged in the steelmaking furnace 100, the other end of the high-temperature-resistant light guide transistor is connected with the optical coupling device 2 and used for collecting light rays in the furnace and guiding the light rays to the other end of the high-temperature-resistant transistor to be connected into the optical coupling device, and the optical coupling device 2 is connected with the temperature;
as shown in fig. 2, the high temperature resistant light guide transistor 1 includes: the light guide structure comprises a ceramic outer tube 11, wherein a light guide crystal rod 12 arranged along the extension direction of the ceramic outer tube is arranged in an inner cavity of the ceramic outer tube, and a support 13 is filled between the light guide crystal rod 12 and the inner wall of the ceramic outer tube 11. Specifically, the ceramic outer tube may be made of zirconia (ZrO2) -based ceramic or Zirconia Toughened Alumina (ZTA), the light-guiding crystal rod is an alumina crystal rod, and the support filled between the light-guiding crystal rod and the inner wall of the ceramic outer tube may be any high-temperature-resistant powder, such as: zirconia powder, alumina powder, or the like. In this embodiment, the filler is made of alumina powder, and when the crystal rod and the filler powder are made of the same material, the crystal rod and the filler powder have the same expansion and absorption parameters, so that the crystal rod and the filler powder can be well combined, and the generated thermal stress is also small, so that the high-temperature-resistant light-guiding transistor has strong thermal shock and thermal shock resistance.
Meanwhile, in order to facilitate the connection between the high-temperature-resistant light guide transistor and the optical coupling device, a connecting end 14 is installed at one end of the high-temperature-resistant light guide transistor, the light guide crystal rod extends out of the connecting end, the connecting end is in threaded connection with the optical coupling device, and when the water cooling device is arranged outside the optical coupling device, the connecting end is connected with the water cooling device arranged outside the optical coupling device in a threaded connection mode.
The device replaces the traditional light splitting device through the optical coupling equipment, and has the advantages of simple structure, low cost and simple assembly.
As shown in fig. 1, in a further improvement, the temperature measuring component 3 includes: signal processing equipment 31 and two photoelectric detector 32, two photoelectric detector 32 all is connected with signal processing equipment 31, two single mode fiber 5 are connected to optical coupling equipment 2, two single mode fiber 5 connects one respectively photoelectric detector 32. The luminous flux is coupled into two single-mode fibers and transmitted in the two single-mode fibers, the same germanium detector (photoelectric detector) is connected behind the single-mode fibers to receive the luminous flux transmitted by different single-mode fibers, the signal processing equipment converts and processes the optical signals, and then the temperature of the surface of the object to be measured is displayed through the display equipment 33 connected with the signal processing equipment. Specifically, single mode fibers of different wave bands are selected according to different temperature measurement ranges. In the example, we selected a single mode fiber with wavelengths of 1310nm and 1550nm, the core diameter of the single mode fiber being 8 microns, the cladding being 125 microns, the outer cladding being a protective sleeve or metal hose, and the interface being SMA 905. Wherein, the signal processing equipment is a singlechip or a computer.
As shown in fig. 3, the optical coupling device 2 is further improved to include: the outer wall 21 of bucket type, it has two lenses 23 to inlay in the outer wall 21 inner chamber 22, be equipped with water cooling plant 4 outside outer wall 21. The water cooling equipment continuously cools the optical coupling equipment through circulating water.
As shown in fig. 4, in a further modification, one end of the water cooling device 4 along the extending direction of the optical coupling device 2 is provided with a water inlet 41, and the other end is provided with a water outlet 42. The inlet 41 and outlet 42 are connected by pipes to a reservoir or other container.
The further improvement is that one end of the optical coupling device 2 is in threaded connection with the inner wall of one end of the water cooling device 4, and the other end of the water cooling device 4 is in threaded connection with the high-temperature-resistant light guide transistor 1. Specifically, as shown in the figure, the inner wall of the right end of the water cooling device 4 has an internal thread 43, and the outer wall of the right end of the optical coupling device 2 has an external thread 24 matching with the internal thread, and the two are connected by thread fit. The left end of the water cooling device 4 has an external thread 44, and is connected to the high temperature resistant light guide transistor 1 through the external thread 44.
As shown in fig. 5, the improvement is that the water inlet 41 is connected with a water pump 45 through a pipeline, and the water pump 45 is connected with a control device 47. In this embodiment, controlgear is the singlechip for the operating condition of control water pump makes the hydrologic cycle in the water cooling plant rapider through the water pump, improves cooling efficiency. The heat conducted by the high-temperature-resistant light-conducting transistor in the steelmaking furnace is contacted with the front end of the water cooling equipment and is taken away through water cooling circulation. The heat radiated from the outer wall of the steel-making furnace is directly absorbed by the outer wall of the water cooling equipment and is taken away through water cooling circulation, so that the optical coupling equipment is effectively protected, and although the temperature in the steel-making furnace reaches more than 1500 ℃, the temperature of the outer wall of the steel-making furnace also reaches more than 150 ℃, the heat can be effectively protected by the water cooling equipment, and the radiation flux in the steel-making furnace can be effectively transmitted out.
The temperature in the steelmaking furnace changes along with the industrial process, and the internal temperature of the water cooling system is kept below 150 ℃ so as to ensure the normal work of the optical coupling equipment. The water circulation speed is lower when the temperature is low, and is higher when the temperature in the steelmaking furnace is high. In order to control the speed of the water circulation, in this embodiment, the water cooling device is provided with a temperature sensor 46, and the temperature sensor 46 is connected to the control device 47. At least one temperature value is preset in the control equipment, and when the temperature measured by the temperature sensor is higher than the temperature value, the control equipment improves the working power of the water pump so as to improve the rotating speed of the water pump and accelerate the water circulation speed in the water cooling equipment. In another embodiment, a plurality of temperature values are preset in the control device, if the measured water temperature is lower than 100 ℃, the water pump can not work, the rotating speed of the water pump is gradually increased along with the increase of the measured temperature value, when the measured temperature exceeds 150 ℃, the control device can drive the alarm to give an alarm, and at the moment, the fan can be started, and air cooling is used for assisting in cooling. Specifically, when the temperature measured by the temperature sensor is less than 100 ℃, the rotating speed of the water pump is 0 (not working); when the temperature measured by the temperature sensor is less than 110 ℃, the rotating speed of the water pump is 1; the temperature measured by the temperature sensor at 110 ℃ is less than 120 ℃, and the rotating speed of the water pump is 2; the temperature measured by the temperature sensor at 120 ℃ is less than 130 ℃, and the rotating speed of the water pump is 3; the temperature measured by the temperature sensor at 130 ℃ is less than 140 ℃, and the rotating speed of the water pump is 4; the temperature measured by the temperature sensor at 140 ℃ is less than 150 ℃, and the rotating speed of the water pump is 5; when the temperature sensor measures the temperature at 150 ℃, the alarm gives an alarm.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. A colorimetric temperature measuring device in a steelmaking furnace without a light splitting device is characterized by comprising: the device comprises a high-temperature-resistant light guide transistor, optical coupling equipment and a temperature measurement component, wherein one end of the high-temperature-resistant light guide transistor is arranged in a steelmaking furnace, the other end of the high-temperature-resistant light guide transistor is connected with the optical coupling equipment, and the optical coupling equipment is connected with the temperature measurement component through an optical fiber;
the high-temperature-resistant light guide transistor comprises a ceramic outer tube, a light guide crystal rod is arranged in an inner cavity of the ceramic outer tube, and a support is filled between the light guide crystal rod and the inner wall of the ceramic outer tube.
2. The steelmaking furnace colorimetric temperature measuring device without a spectroscopic device as set forth in claim 1, wherein the temperature measuring unit includes: the optical coupling device is connected with two single-mode optical fibers, and the two single-mode optical fibers are respectively connected with the photoelectric detectors.
3. The steelmaking furnace colorimetric temperature measuring device without a spectroscopic device as set forth in claim 1, wherein the optical coupling means includes: the outer wall of bucket type, it has lens to inlay in the outer wall inner chamber, the outer wall is equipped with water cooling equipment outward.
4. The steelmaking furnace internal colorimetric temperature measurement device without a light splitting device according to claim 3, wherein one end of the optical coupling device is connected with the inner wall of one end of the water cooling device through a screw thread, and the other end of the water cooling device is connected to the high temperature resistant light guide transistor through a screw thread.
5. The steelmaking furnace colorimetric temperature measuring device without a light splitting device as claimed in claim 4, wherein the water inlet of the water cooling device is connected with a water pump through a pipeline, and the water pump is connected with a control device.
6. The steelmaking furnace colorimetric temperature measuring device without a light splitting device as claimed in claim 5, wherein a temperature sensor is provided on the water cooling equipment, and the temperature sensor is connected with the control equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921932646.8U CN210741680U (en) | 2019-11-11 | 2019-11-11 | Colorimetric temperature measuring device in steelmaking furnace without light splitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921932646.8U CN210741680U (en) | 2019-11-11 | 2019-11-11 | Colorimetric temperature measuring device in steelmaking furnace without light splitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210741680U true CN210741680U (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921932646.8U Active CN210741680U (en) | 2019-11-11 | 2019-11-11 | Colorimetric temperature measuring device in steelmaking furnace without light splitting device |
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| Country | Link |
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| CN (1) | CN210741680U (en) |
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- 2019-11-11 CN CN201921932646.8U patent/CN210741680U/en active Active
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