CN216695293U - Temperature measuring system for measuring surface temperature of steel billet in two cooling chambers at multiple angles - Google Patents
Temperature measuring system for measuring surface temperature of steel billet in two cooling chambers at multiple angles Download PDFInfo
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- CN216695293U CN216695293U CN202123168653.5U CN202123168653U CN216695293U CN 216695293 U CN216695293 U CN 216695293U CN 202123168653 U CN202123168653 U CN 202123168653U CN 216695293 U CN216695293 U CN 216695293U
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Abstract
The utility model relates to a temperature measuring system for measuring the surface temperature of steel billets in a secondary cooling chamber at multiple angles, which comprises: the crystal bar temperature measuring device comprises a box body, wherein an air outlet pipe is arranged at one end of the box body, an air injection assembly is arranged in the box body, a crystal bar is arranged in the air injection assembly, the rear end of the crystal bar is connected with a telescopic pipe, the crystal bar is connected with a temperature measuring device, and a rotary driving assembly is arranged on the box body; the gas injection assembly comprises: the crystal bar is arranged in each spray pipe; the telescopic pipe is connected with a control device. The temperature measuring system for measuring the surface temperature of the steel billet in the secondary cooling chamber in multiple angles, provided by the utility model, has the advantages that the inert gas sprayed out of the spray pipe is utilized to form a temperature measuring channel so as to reduce the influence of interference substances such as smoke dust, water vapor and the like on temperature measurement, the system is rotated to realize multiple-angle measurement, and then the measurement results at different angles are averaged, so that the measurement precision is greatly improved.
Description
Technical Field
The utility model relates to the field of temperature measuring equipment, in particular to a temperature measuring system for measuring the surface temperature of steel billets in a secondary cooling chamber at multiple angles.
Background
At present, in the steelmaking continuous casting process, the surface temperature of a casting blank is an important parameter in the steelmaking continuous casting process. The existing automatic control method for the secondary cooling zone is generally in dynamic control, namely, temperature measuring equipment is adopted to measure the temperature of a steel billet to adjust the flow and the speed of water spraying. However, the conventional method for measuring the surface temperature of the steel billet is not easy, and though the thermocouple contact type temperature measurement precision is high, sufficient heat exchange is required, so that time delay and operation errors are caused, and dynamic control cannot be effectively realized. If a conventional infrared non-contact type temperature measuring instrument is used for measurement, although direct contact with the steel billet can be avoided, the response speed is improved, due to the fact that the surrounding environment of the secondary cooling area is poor, water mist steam is filled nearby the steel billet, and data acquired by the infrared temperature measuring instrument is extremely inaccurate. At present, the influence of water vapor of a radiation channel between an infrared sensor and a casting blank is usually eliminated in an air curtain mode, but the influence of water mist and air on an infrared light path system can only be limited to a certain range, and the influence of the water vapor on temperature measurement data cannot be fundamentally solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that when the surface temperature of the steel billet in the existing water cooling area is measured, the measuring result is inaccurate due to interfering substances mainly comprising water vapor, and the adopted technical scheme is as follows: a temperature measuring system for measuring the surface temperature of steel billets in a two-cold-chamber in multiple angles comprises: the crystal bar temperature measuring device comprises a box body, wherein one end of the box body is provided with an air outlet pipe, an air injection assembly is arranged in the box body, a crystal bar is arranged in the air injection assembly, the rear end of the crystal bar is connected with a telescopic pipe, the crystal bar is connected with a temperature measuring device, and a rotary driving assembly is arranged on the box body;
the gas injection assembly comprises: the air storage bin and the spray pipes are sequentially communicated, the spray pipes are arranged in the air outlet pipe, at least two spray pipes are arranged, the outer side end of each spray pipe is exposed out of the air outlet pipe, and each spray pipe is internally provided with one crystal rod;
the telescopic pipe is connected with a control device.
Of course, in other embodiments, there may be multiple jets with one crystal rod disposed within each jet.
The improved gas storage device is characterized in that a heating device is arranged on the gas storage bin, a thermometer is arranged on the gas storage bin, and the heating device and the thermometer are connected with the control device.
The improved structure is characterized in that a temperature measuring device is arranged at the outer side end of the air outlet pipe and connected with the control device.
In a further improvement, the spray pipe is a Laval spray pipe.
The further improvement is that a water cooling component is arranged outside the spray pipe.
The improvement is that, water-cooling subassembly includes water-cooling sleeve pipe, water circulating equipment and hydrologic cycle valve, the water-cooling sleeve pipe set up in spout outside the pipe, water circulating equipment passes through inlet tube and wet return intercommunication the water-cooling sleeve pipe, the hydrologic cycle valve set up in on inlet tube and the wet return, just water circulating equipment water circulating valve all with controlgear is connected.
In a further refinement, the control device comprises: the temperature measurement controller is connected with the temperature measurement equipment, the gas storage bin valve controller is connected with a valve between the gas storage bin and the spray pipe, the heating controller is connected with the heating equipment, and the telescopic pipe controller is connected with the telescopic pipe.
In a further refinement, the rotary drive assembly includes: the box body is arranged on the rotating holder, and the rotating holder is arranged on the base.
The further improvement is that the temperature measuring device is a monochromatic temperature measuring device or a colorimetric temperature measuring device.
The utility model has the beneficial effects that:
the temperature measuring system for measuring the surface temperature of the steel billet in the secondary cooling chamber in multiple angles, provided by the utility model, has the advantages that the inert gas sprayed out of the spray pipe is utilized to form a temperature measuring channel so as to reduce the influence of interference substances such as smoke dust, water vapor and the like on temperature measurement, the system is rotated to realize multiple-angle measurement, and then the measurement results at different angles are averaged, so that the measurement precision is greatly improved.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a temperature measuring system for measuring the surface temperature of a steel billet in a secondary cooling chamber at multiple angles according to the present invention;
FIG. 2 is a schematic structural diagram of a temperature measuring system for measuring the surface temperature of steel billets in a secondary cooling chamber at multiple angles according to the utility model;
FIG. 3 is a schematic view of the nozzle structure of the temperature measuring system for measuring the surface temperature of the steel billet in the secondary cooling chamber in multiple angles according to the present invention;
FIG. 4 is a schematic structural diagram of the temperature measuring device 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 views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution 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 utility model, "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 fig. 1 and 2, the present invention provides a temperature measuring system for measuring the surface temperature of a steel billet in a secondary cooling chamber at multiple angles, comprising: box 1, box one end has out tuber pipe 2, goes out 2 shapes of tuber pipe and can set up according to actual need, adopt the rectangle shell in this embodiment, with two vertical placements of spray tube, because two vertical intervals of spray tube are very little, the difference in height is not big, therefore, horizontal position is unanimous roughly, it is unanimous roughly like this, can avoid horizontal position to differ too greatly, the data that leads to two crystal bar probes to feed back differ too greatly, two vertical placements of spray tube simultaneously, the reliability of test has also been increased, final data get two test data's average value. The end part of the spray pipe is exposed out of the end part of the air pipe, an air injection assembly 3 is arranged in the box body 1, a crystal bar 4 is arranged in the air injection assembly 3, the rear end of the crystal bar 4 is connected with a telescopic pipe 5, the crystal bar 4 is connected with a temperature measuring device 100, and a rotary driving assembly 6 is arranged on the box body 1; when the system works, the inert gas sprayed by the gas spraying component forms a temperature measuring channel for isolating water mist interference in the secondary cooling chamber, and then the crystal rod extends out of the air outlet pipe under the driving of the telescopic pipe and enters the temperature measuring channel for measuring temperature. The starting point position of crystal bar detection can be easily adjusted through the telescopic pipe, the optimal detection point is found, the phenomenon that the crystal bar probe is damaged due to overhigh temperature caused by too close distance or the heat loss of a radiation heat source is overlarge caused by too far distance is avoided, and the temperature fed back by the crystal bar probe in detection is too low.
As shown in fig. 1, the gas injection unit 3 includes: the air storage bin 31 and the spray pipes 32 are sequentially communicated, the spray pipes 32 are arranged in the air outlet pipe 2, the number of the spray pipes 32 is at least two, the outer side end of each spray pipe 32 is exposed out of the air outlet pipe 2, and each spray pipe 32 is internally provided with one crystal rod 4 (shown in figure 3); the telescopic tube 5 is connected with a control device. In the process of blowing out the temperature measurement channel by using the spray pipe 32, most of gas can be blown out, but a small amount of gas can be stored in the channel inevitably, and certain influence is generated on temperature measurement. And two vertically placed spray pipes are adopted, the upper crystal rod and the lower crystal rod are used for measuring the temperature, the signal values of two points near the same position can be effectively and simultaneously tested, and the influence of trace gas on the temperature measurement precision can be reduced to a great extent by averaging the data of the two detected data, so that the real temperature of the surface of the steel billet is obtained. The distance between the upper spray pipe and the lower spray pipe is not too large, and in the embodiment, the distance between the upper spray pipe and the lower spray pipe is 5 cm.
This temperature measurement system utilizes spray tube spun inert gas to form a temperature measurement passageway in order to reduce the influence of interferents such as smoke and dust and steam to the temperature measurement, in order to realize multi-angle measurement through rotating this system moreover, and then obtains the temperature data of different positions department, knows the temperature value change of different positions.
Because the temperature of the high-pressure gas sprayed out of the spray pipe is different from the temperature of the temperature measuring environment, the crystal bar may have an influence when collecting signals, and in order to avoid the influence, a further improvement of the embodiment is that a heating device 33 is arranged on the gas storage chamber 31, a thermometer is arranged on the gas storage chamber 31, and the heating device 33 and the thermometer are connected with the control device. The during operation, firing equipment 33 heats gas storage chamber 31, and then the inside gas temperature in gas storage chamber 31 rises, simultaneously, predetermines the temperature that a gas storage chamber 31 internal gas need reach through controlgear to and install the thermometer on gas storage chamber 31, form a temperature control's closed loop. The heating device 33 may be a heating resistance wire wound around the outer surface of the gas storage bin, or may be a heating blanket or other flexible heating device coated outside the gas storage bin.
In order to make the temperature of the gas sprayed out of the spray pipe keep consistent with the temperature of the temperature measuring environment, the further improvement of the embodiment is that the outer side end of the air outlet pipe 2 is provided with a temperature measuring device, and the temperature measuring device is connected with the control device. Through this temperature measurement equipment real-time measurement temperature measurement ambient temperature to give control device with this temperature real-time feedback, and then, control device implements closed-loop heating control to the gas storage storehouse based on this temperature measurement equipment and thermometer, has both guaranteed that gas temperature can keep unanimous with temperature measurement ambient temperature in the gas storage storehouse, has avoided the waste of the energy again. Meanwhile, if the gas is blown to the surface of the steel billet carelessly, the local temperature of the steel billet cannot be reduced due to too low gas temperature, and the local quality of the steel billet is prevented from being influenced unnecessarily.
In order to isolate the water mist interference in the temperature measuring channel to the maximum extent, the spray pipe 32 is a laval spray pipe. The Laval nozzle can be used for easily spraying a cylindrical vacuum environment with the diameter of the Laval nozzle, and the interference of heavy water mist in the secondary cooling chamber is isolated.
In a further improvement, a water cooling assembly is arranged outside the spray pipe 32.
The improvement is that, water-cooling subassembly includes water-cooling sleeve pipe, water circulating equipment and hydrologic cycle valve, the water-cooling sleeve pipe set up in spout outside the pipe, water circulating equipment passes through inlet tube and wet return intercommunication the water-cooling sleeve pipe, the hydrologic cycle valve set up in on inlet tube and the wet return, just water circulating equipment water circulating valve all with controlgear is connected.
In a further refinement, the control device comprises: the temperature measurement controller is connected with the temperature measurement equipment, the gas storage bin valve controller is connected with the gas storage bin and the valve 34 between the spray pipes, the heating controller is connected with the heating equipment, and the telescopic pipe controller is connected with the telescopic pipe.
In a further development, the rotary drive assembly 6 comprises: base 61 and rotatory cloud platform 62, the box 1 set up in rotate on the cloud platform 62, rotatory cloud platform 62 set up in on the base 61, implement to rotate cloud platform 62 and can rotate under controlgear's control. The rotating cradle head can preset the rotating angle of the cradle head and the pause time at each position according to the azimuth angles of a plurality of important points of the two cold rooms to be tested. Each rotation is typically set for a 10 minute time interval, and the next angular rotation is performed, with a 10 second dwell at each location point, and then the next rotation is performed.
The further improvement is that the temperature measuring device is a monochromatic temperature measuring device or a colorimetric temperature measuring device.
As shown in fig. 4, the colorimetric thermometry apparatus comprises: the device comprises an optical coupling device 110 and a temperature measuring component 120, wherein one end of the crystal rod 4 is arranged in the steelmaking furnace, the other end of the crystal rod is connected with the optical coupling device 110 and used for collecting light rays in the furnace and guiding the light rays to the optical coupling device connected with the other end of the crystal rod 4, and the optical coupling device 110 is connected with the temperature measuring component 120 through optical fibers; the temperature measuring assembly 120 includes: signal processing equipment 121 and two photoelectric detector 122, two photoelectric detector 122 all is connected with signal processing equipment 121, optical coupling equipment 110 connects two single mode fiber 130, two single mode fiber 130 connects one respectively photoelectric detector 122, and signal processing equipment 121 is connected with display device 123 for show temperature measurement result. The luminous flux is coupled into two single-mode fibers and transmitted in the 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 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.
The optical coupling device 110 comprises: the outer wall of bucket type, it has two lenses to inlay in the outer wall inner chamber, the outer wall is equipped with water cooling equipment outward. The water cooling equipment continuously cools the optical coupling equipment through circulating water.
Referring to the colorimetric temperature measurement device, the optical coupling device in the monochromatic temperature measurement device is connected to the photodetector 122 through an optical fiber, and the photodetector is connected to the signal processing device.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. 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 (9)
1. The utility model provides a temperature measurement system of two cold chamber steel billet surface temperature of multi-angle measurement which characterized in that includes: the crystal bar temperature measuring device comprises a box body, wherein one end of the box body is provided with an air outlet pipe, an air injection assembly is arranged in the box body, a crystal bar is arranged in the air injection assembly, the rear end of the crystal bar is connected with a telescopic pipe, the crystal bar is connected with a temperature measuring device, and a rotary driving assembly is arranged on the box body;
the gas injection assembly comprises: the air storage bin and the spray pipes are sequentially communicated, the spray pipes are arranged in the air outlet pipe, the outer side ends of at least two spray pipes are exposed out of the air outlet pipe, and each spray pipe is internally provided with one crystal rod;
the telescopic pipe is connected with a control device.
2. The system for measuring the temperature of the surface of the steel billet in the secondary cooling chamber in multiple angles as claimed in claim 1, wherein a heating device is arranged on the gas storage bin, a temperature meter is arranged on the gas storage bin, and the heating device and the temperature meter are connected with the control device.
3. The system for measuring the temperature of the surface of the steel billet in the secondary cooling chamber in multiple angles as claimed in claim 2, wherein a temperature measuring device is arranged at the outer end of the air outlet pipe, and the temperature measuring device is connected with the control device.
4. The system of claim 3, wherein the nozzle is a laval nozzle.
5. The system for measuring the temperature of the surface of the steel billet in the secondary cooling chamber in the multi-angle mode according to claim 4, wherein a water cooling assembly is arranged outside the spraying pipe.
6. The system for measuring the temperature of the surface of the steel billet in the secondary cooling chamber in multiple angles as claimed in claim 5, wherein the water cooling component comprises a water cooling sleeve, a water circulation device and a water circulation valve, the water cooling sleeve is arranged outside the spray pipe, the water circulation device is communicated with the water cooling sleeve through a water inlet pipe and a water return pipe, the water circulation valve is arranged on the water inlet pipe and the water return pipe, and the water circulation device and the water circulation valve are connected with the control device.
7. The system of claim 6, wherein the control device comprises: the temperature measurement controller is connected with the temperature measurement equipment, the gas storage bin valve controller is connected with a valve between the gas storage bin and the spray pipe, the heating controller is connected with the heating equipment, and the telescopic pipe controller is connected with the telescopic pipe.
8. The system of claim 1, wherein the rotary drive assembly comprises: the box body is arranged on the rotating holder, and the rotating holder is arranged on the base.
9. The system for measuring the temperature of the surface of the steel billet in the secondary cooling chamber in multiple angles according to claim 1, wherein the temperature measuring device is a monochromatic temperature measuring device or a colorimetric temperature measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123168653.5U CN216695293U (en) | 2021-12-16 | 2021-12-16 | Temperature measuring system for measuring surface temperature of steel billet in two cooling chambers at multiple angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123168653.5U CN216695293U (en) | 2021-12-16 | 2021-12-16 | Temperature measuring system for measuring surface temperature of steel billet in two cooling chambers at multiple angles |
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| Publication Number | Publication Date |
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| CN216695293U true CN216695293U (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123168653.5U Active CN216695293U (en) | 2021-12-16 | 2021-12-16 | Temperature measuring system for measuring surface temperature of steel billet in two cooling chambers at multiple angles |
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| CN (1) | CN216695293U (en) |
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- 2021-12-16 CN CN202123168653.5U patent/CN216695293U/en active Active
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