Calibration system and calibration method for a continuous-casting machine molten steel temperature measurement system

Abstract

The application discloses a continuous-casting-machine-liquid-steel temperature measuring system calibration system and a calibration method. The calibration system comprises a calibration main body, a reference temperature radiation source, an adjusting module, a locking module, a standard probe and a standard temperature measuring module. The adjusting module is used for outputting an adjusting signal to adjust the reference temperature output by the reference temperature radiation source. The standard temperature measuring module is used for measuring the reference temperature detected by the standard probe. The locking module is used for locking the adjusting signal output by the adjusting module when the reference temperature detected by the standard temperature measuring module reaches a preset calibration temperature. The adjusting module is further used for outputting the adjusting signal locked by the locking module when the probe connecting assembly is connected with the measuring probe, so as to calibrate the continuous temperature measuring system based on the deviation between the temperature detected by the measuring probe measured by the continuous temperature measuring system and the preset calibration temperature. Through the above scheme, the problem that the existing continuous-casting-machine-liquid-steel temperature measuring system is difficult to calibrate is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of temperature measurement system calibration, and in particular to a continuous casting machine molten steel temperature measurement system calibration system and a calibration method. BACKGROUND

[0002] The existing continuous casting machine molten steel temperature measurement system generally uses an infrared high-temperature radiation measurement probe to measure the molten steel temperature. A photoelectric converter on the measurement probe converts the temperature signal into an electrical signal and transmits it to a secondary instrument. Finally, the temperature is displayed through a large display screen. At the same time, the existing temperature measurement system calibration is usually calibrated by using a blackbody furnace.

[0003] Since the molten steel temperature in the continuous casting machine can be as high as 1650℃, the related components of the infrared high-temperature radiation measurement probe, power supply and signal transmission cable need to be cooled by nitrogen. The outer diameter of the probe measurement tube is more than 40mm, and the diameter of the blackbody cavity of the general blackbody furnace is relatively small. The blackbody furnace with a large diameter and a high-temperature section is expensive. The infrared high-temperature radiation measurement probe and the line pipe are usually 6 meters long, plus the secondary instrument and the display screen, etc. The continuous casting machine molten steel temperature measurement system is large in size, the installation process is complex, and after the system is installed, it is difficult to disassemble and calibrate it with a blackbody furnace in the laboratory. SUMMARY

[0004] The present application provides a continuous casting machine molten steel temperature measurement system calibration system and a calibration method to solve the problem that the existing continuous casting machine molten steel temperature measurement system is difficult to calibrate.

[0005] According to one aspect of the present application, a continuous casting machine molten steel temperature measurement system calibration system is provided for calibrating a continuous casting machine molten steel temperature measurement system. The continuous casting machine molten steel temperature measurement system includes a measurement probe and a continuous temperature measurement system. The continuous temperature measurement system is electrically connected to the measurement probe and is used to measure the molten steel temperature detected by the measurement probe. The continuous casting machine molten steel temperature measurement system calibration system includes a calibration main body, a reference temperature radiation source, an adjustment module, a locking module, a standard probe and a standard temperature measurement module.

[0006] The reference temperature radiation source is used to output a reference temperature. The input end of the adjustment module is electrically connected to the control end of the reference temperature radiation source, and is used to output an adjustment signal to adjust the size of the reference temperature output by the reference temperature radiation source.

[0007] The reference temperature radiation source is arranged on the calibration main body. The calibration main body is provided with a probe connection assembly. One end of the probe connection assembly is connected to the reference temperature radiation source, and the other end of the probe connection assembly is used to connect at least one of the standard probe and the measurement probe.

[0008] The standard probe is used for detecting a reference temperature output by the reference temperature radiation source, an input end of the standard temperature measurement module is electrically connected with an output end of the standard probe, and the standard temperature measurement module is used for measuring the reference temperature detected by the standard probe;

[0009] The locking module is electrically connected with the adjusting module, and the adjusting module is used for outputting the adjusting signal when the reference temperature detected by the standard temperature measurement module reaches a preset calibration temperature when the probe connecting assembly is connected with the standard probe;

[0010] The adjusting module is further used for outputting the adjusting signal locked by the locking module when the probe connecting assembly is connected with the measurement probe, so that the continuous temperature measurement system is calibrated based on a deviation between the temperature detected by the measurement probe and the preset calibration temperature.

[0011] In an optional embodiment of the present application, the reference temperature radiation source comprises an iodine tungsten lamp radiation light source, the adjusting module comprises a current controller, and the adjusting signal is a current signal.

[0012] In an optional embodiment of the present application, the iodine tungsten lamp radiation light source comprises an iodine tungsten lamp, a first convex lens, a second convex lens and a frosted glass arranged in sequence from a direction away from the probe connecting assembly to a direction close to the probe connecting assembly.

[0013] In an optional embodiment of the present application, the standard temperature measurement module comprises a photoelectric conversion module, a measurement module and a display module.

[0014] An input end of the photoelectric conversion module is electrically connected with the standard probe, an output end of the photoelectric conversion module is electrically connected with an input end of the measurement module, the photoelectric conversion module is used for converting an optical signal detected by the standard probe into an electrical signal, and the measurement module is used for determining the reference temperature detected by the standard probe based on the electrical signal converted by the photoelectric conversion module.

[0015] An output end of the measurement module is electrically connected with the display module, and the display module is used for displaying the detected reference temperature.

[0016] In an optional embodiment of the present application, the standard temperature measurement module further comprises a gain adjusting module, the gain adjusting module is electrically connected with the measurement module, and the gain adjusting module is used for adjusting a signal gain of the measurement module to adjust the detected reference temperature.

[0017] In an optional embodiment of the present application, the probe connecting assembly comprises a probe connecting pipe, and the number of the probe connecting pipes is one or two.

[0018] One end of the probe connecting pipe is connected with the reference temperature radiation source, and the other end is used for connecting at least one of the standard probe and the measuring probe;

[0019] Two ends of the probe connecting pipe are connected with the reference temperature radiation source, and the other ends are used for connecting the standard probe and the measuring probe respectively.

[0020] According to another aspect of the present application, a calibration method of a continuous casting machine molten steel temperature measurement system is provided, characterized in that the calibration method is used for the calibration system of the continuous casting machine molten steel temperature measurement system according to any one of the embodiments of the present application, and the calibration method comprises the following steps:

[0021] Connecting the standard probe with the probe connecting assembly;

[0022] Adjusting an adjustment signal output by the adjustment module to the reference temperature radiation source until a reference temperature detected by the standard temperature measurement module reaches a preset calibration temperature;

[0023] Locking, by the locking module, the adjustment signal when the reference temperature detected by the standard temperature measurement module reaches the preset calibration temperature;

[0024] Connecting the measuring probe with the probe connecting assembly;

[0025] Controlling the adjustment module to output the adjustment signal locked by the locking module;

[0026] Determining whether there is a temperature deviation between a temperature measured by the continuous temperature measurement system and the preset calibration temperature;

[0027] If yes, calibrating the temperature measured by the continuous temperature measurement system based on the temperature deviation until there is no temperature deviation between the temperature measured by the continuous temperature measurement system and the preset calibration temperature.

[0028] In an optional embodiment of the present application, before the step of adjusting the adjustment signal output by the adjustment module to the reference temperature radiation source until the reference temperature detected by the standard temperature measurement module reaches the preset calibration temperature, the method further comprises the following steps:

[0029] Calibrating the standard temperature measurement module.

[0030] In an optional embodiment of the present application, the step of calibrating the standard temperature measurement module comprises the following steps:

[0031] Putting the standard probe into a blackbody furnace;

[0032] Determining whether there is a deviation between the reference temperature detected by the standard temperature measurement module and a standard temperature of the blackbody furnace;

[0033] If yes, calibrate the reference temperature detected by the standard temperature measurement module based on the standard temperature of the blackbody furnace.

[0034] In an optional embodiment of the present application, calibrating the reference temperature detected by the standard temperature measurement module based on the standard temperature of the blackbody furnace comprises:

[0035] Adjusting the signal gain of the measurement module by the gain adjustment module until the reference temperature detected by the measurement module is consistent with the standard temperature of the blackbody furnace.

[0036] The technical scheme of the embodiment of the present application, by setting the calibration main body, the reference temperature radiation source, the adjustment module, the locking module, the standard probe and the standard temperature measurement module, can first detect the reference temperature radiated by the reference temperature radiation source through the standard probe and the probe connecting assembly, determine the reference temperature detected by the standard probe through the standard temperature measurement module, adjust the reference temperature radiated by the reference temperature radiation source through the adjustment module output adjustment signal until the reference temperature detected by the standard temperature measurement module reaches the preset calibration temperature, and lock the adjustment signal output by the adjustment module through the locking module. The adjustment signal refers to the signal that can make the reference temperature output by the reference temperature radiation source be the preset calibration temperature. When it is necessary to calibrate the continuous temperature measurement system of the continuous casting machine, the calibration main body, the reference temperature radiation source, the adjustment module and the locking module are only needed to be taken to the site, the measurement probe is connected with the probe connecting assembly, the adjustment signal locked by the locking module is output by the adjustment module, and at this time the continuous temperature measurement system can determine the temperature radiated by the reference temperature radiation source detected by the measurement probe. The theoretical value of this temperature is the preset calibration temperature. The deviation between the temperature detected by the continuous temperature measurement system and the preset calibration temperature can calibrate the continuous temperature measurement system, that is, calibrate the continuous casting machine molten steel temperature measurement system. The problem that the existing continuous casting machine molten steel temperature measurement system is difficult to calibrate is solved. The continuous casting machine molten steel temperature measurement system can be calibrated in time according to the on-site use condition, the measurement probe does not need to be disassembled and sent to the laboratory blackbody furnace for calibration, the problem that the diameter of the blackbody cavity of the blackbody furnace is not large and the temperature is not high is solved, and the on-site calibration needs can be met as long as the continuous casting machine molten steel temperature measurement system calibration system is used.

[0037] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0039] Figure 1 A structure schematic diagram of a calibration system of a continuous casting machine liquid steel temperature measuring system provided by the embodiment one of the present application;

[0040] Figure 2 A circuit block diagram of the calibration system of the continuous casting machine liquid steel temperature measuring system provided by the embodiment one of the present application;

[0041] Figure 3 A circuit block diagram of the calibration system of the continuous casting machine liquid steel temperature measuring system provided by the embodiment one of the present application and the connection of the continuous casting machine liquid steel temperature measuring system;

[0042] Figure 4 A structure schematic diagram of the connection of an iodine tungsten lamp radiation light source and a probe connecting assembly provided by the embodiment one of the present application;

[0043] Figure 5 A circuit block diagram of another calibration system of the continuous casting machine liquid steel temperature measuring system provided by the embodiment one of the present application;

[0044] Figure 6 A flow chart of a calibration method of the continuous casting machine liquid steel temperature measuring system provided by the embodiment two of the present application;

[0045] Figure 7 A flow chart of a calibration method of the continuous casting machine liquid steel temperature measuring system provided by the embodiment three of the present application;

[0046] Figure 8 A flow chart of the calibration of the standard temperature measuring module in step Figure 7 .

[0047] Wherein: 1, calibration main body; 2, reference temperature radiation source; 21, iodine tungsten lamp radiation light source; 211, iodine tungsten lamp; 212, first convex lens; 213, second convex lens; 214, ground glass; 3, adjustment module; 4, locking module; 41, locking switch; 5, standard probe; 6, standard temperature measuring module; 61, photoelectric conversion module; 62, measuring module; 63, display module; 64, gain adjustment module; 7, probe connecting assembly; 71, probe connecting pipe; 8, measuring probe; 9, continuous temperature measuring system; 10, adjustment knob; 11, probe signal connector; 12, measuring circuit board; 13, current control board. DETAILED DESCRIPTION

[0048] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0049] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0050] Example 1

[0051] Figure 1 This is a schematic diagram of a calibration system for a continuous casting machine molten steel temperature measurement system provided in Embodiment 1 of the present invention. This calibration system is used to calibrate the continuous casting machine molten steel temperature measurement system. Figures 1-3 As shown, the continuous casting machine molten steel temperature measurement system includes a measuring probe 8 and a continuous temperature measurement system 9. The continuous temperature measurement system 9 is electrically connected to the measuring probe 8 and is used to measure the molten steel temperature detected by the measuring probe 8. When measuring the molten steel temperature, the measuring probe 8 is usually placed in the molten steel, and then the continuous temperature measurement system 9 can confirm the molten steel temperature based on the signal fed back by the measuring probe 8. The calibration system of the continuous casting machine molten steel temperature measurement system includes a calibration body 1, a reference temperature radiation source 2, an adjustment module 3, a locking module 4, a standard probe 5, and a standard temperature measurement module 6.

[0052] Reference temperature radiation source 2 is used to output a reference temperature. The input terminal of adjustment module 3 is electrically connected to the control terminal of reference temperature radiation source 2, and is used to output an adjustment signal to adjust the reference temperature output by reference temperature radiation source 2. Reference temperature radiation source 2 refers to a radiation source capable of radiating temperature, which is the reference temperature. Adjustment module 3 is a module capable of adjusting the temperature radiated by reference temperature radiation source 2. The adjustment signal is a signal indicating the radiation status of reference temperature radiation source 2; different adjustment signals will result in different reference temperatures output by reference temperature radiation source 2.

[0053] The reference temperature radiation source 2 is arranged on the calibration main body 1, and the calibration main body 1 is provided with a probe connection assembly 7, one end of the probe connection assembly 7 is connected with the reference temperature radiation source 2, and the other end of the probe connection assembly 7 is used for connecting at least one of the standard probe 5 and the measurement probe 8. As shown in Figure 2 and Figure 3 , the calibration main body 1 refers to the main part of the continuous casting machine molten steel temperature measurement system calibration system, which can be a box body, and the reference temperature radiation source 2 and the adjusting module 3 can be arranged in the box body. The probe connection assembly 7 refers to an assembly capable of being connected with the standard probe 5 and the measurement probe 8, when the probe connection assembly 7 is connected with the standard probe 5, the standard probe 5 can detect the reference temperature radiated by the reference temperature radiation source 2, and when the probe connection assembly 7 is connected with the measurement probe 8, the measurement probe 8 can detect the reference temperature radiated by the reference temperature radiation source 2.

[0054] The standard probe 5 is used for detecting the reference temperature output by the reference temperature radiation source 2, and the input end of the standard temperature measurement module 6 is electrically connected with the output end of the standard probe 5, for measuring the reference temperature detected by the standard probe 5. Wherein, in actual detection, the standard probe 5 will feedback a signal capable of reflecting the temperature value of the detected reference temperature, and the standard temperature measurement module 6 refers to a module capable of determining the reference temperature detected by the standard probe 5 according to the signal feedback by the standard probe 5, and the reference temperature output by the reference temperature radiation source 2 detected by the standard probe 5 can be detected through the standard temperature measurement module 6.

[0055] The locking module 4 is electrically connected with the adjusting module 3, and is used for locking the adjusting signal output by the adjusting module 3 when the reference temperature detected by the standard temperature measurement module 6 reaches the preset calibration temperature. Wherein, the preset calibration temperature refers to the temperature value of the preset calibration point, and the number of the preset calibration temperature can be multiple, and the next preset calibration temperature can be calibrated after the calibration of a single preset calibration temperature is completed, until all the preset calibration temperatures are calibrated. The locking module 4 refers to a module capable of locking the adjusting signal output by the adjusting module 3, and in a specific embodiment, as shown in Figure 1 , the locking module 4 is a locking switch 41, which only needs to be pressed to be locked. When the reference temperature detected by the standard temperature measurement module 6 reaches the preset calibration temperature, it means that when the adjusting module 3 adjusts the signal output by the reference temperature radiation source 2 at this time, the reference temperature output by the reference temperature radiation source 2 is the preset calibration temperature.

[0056] As shown in Figures 1-3As shown, the adjustment module 3 is also used to output an adjustment signal for locking the lock module 4 when the probe connecting assembly 7 is connected to the measuring probe 8, so as to calibrate the continuous temperature measurement system 9 based on the deviation between the temperature detected by the measuring probe 8 and the preset calibration temperature. The adjustment signal for locking the lock module 4 refers to a signal capable of making the reference temperature output by the reference temperature radiation source 2 be the preset calibration temperature. In an ideal case, when the continuous temperature measurement system 9 has no deviation, the probe connecting assembly 7 is connected to the measuring probe 8, and the temperature detected by the continuous temperature measurement system 9 should be the preset calibration temperature. When there is a deviation between the temperature detected by the continuous temperature measurement system 9 and the preset calibration temperature, it indicates that the temperature detected by the continuous temperature measurement system 9 has a deviation, and the theoretical value should be the preset calibration temperature. At this time, the continuous temperature measurement system 9 can be calibrated based on the preset calibration temperature, and the continuous temperature measurement system 9 is adjusted to output the detected temperature as the preset calibration temperature, so as to calibrate the continuous temperature measurement system 9.

[0057] The above scheme, by setting the calibration main body 1, the reference temperature radiation source 2, the adjustment module 3, the lock module 4, the standard probe 5 and the standard temperature measurement module 6, the standard probe 5 can detect the reference temperature radiated by the reference temperature radiation source 2 through the probe connecting assembly 7, the reference temperature detected by the standard probe 5 is determined through the standard temperature measurement module 6, the reference temperature radiated by the reference temperature radiation source 2 is adjusted through the adjustment module 3 outputting the adjustment signal until the reference temperature detected by the standard temperature measurement module 6 reaches the preset calibration temperature, at this time the lock module 4 will lock the adjustment signal output by the adjustment module 3, which is a signal capable of making the reference temperature output by the reference temperature radiation source 2 be the preset calibration temperature. When it is necessary to calibrate the continuous temperature measurement system of the continuous casting machine, the calibration main body 1, the reference temperature radiation source 2, the adjustment module 3 and the lock module 4 are brought to the scene, the measuring probe 8 is connected to the probe connecting assembly 7, and the adjustment signal locked by the lock module 4 is output by the adjustment module 3, at this time the continuous temperature measurement system 9 can determine the temperature of the reference temperature radiation source 2 radiated by the measuring probe 8, the theoretical value of which is the preset calibration temperature, and the continuous temperature measurement system 9 can be calibrated through the deviation between the detected temperature and the preset calibration temperature, that is, the continuous casting machine molten steel temperature measurement system is calibrated. The problem that the existing continuous casting machine molten steel temperature measurement system is difficult to calibrate is solved, and the continuous casting machine molten steel temperature measurement system can be calibrated in time according to the on-site use, without the need to disassemble the measuring probe 8 and send it to the laboratory blackbody furnace for calibration. The problem that the diameter of the blackbody cavity of the blackbody furnace is not large and the temperature is not high is solved, and the on-site calibration needs can be met by using the continuous casting machine molten steel temperature measurement system calibration system.

[0058] In the optional embodiment of the present application, the calibration main body 1 is further provided with an adjusting knob 10, which is electrically connected with the adjusting module 3, and is used for adjusting the size of the adjusting signal output by the adjusting module 3. Through the adjusting knob 10, the user can more conveniently adjust the size of the adjusting signal output by the adjusting module 3.

[0059] In the optional embodiment of the present application, as shown in Figure 1 and Figure 4 , the reference temperature radiation source 2 comprises an iodine tungsten lamp radiation light source 21, the adjusting module 3 comprises a current controller, and the adjusting signal is a current signal. The current controller refers to a controller capable of controlling the output current signal, and the iodine tungsten lamp radiation light source 21 refers to a radiation source capable of radiating a brightness temperature through an iodine tungsten lamp 211. Under certain conditions, the iodine tungsten lamp 211 has a stable relationship between the radiant flux in the effective area of the tungsten band surface and the current passing through, and can replicate 800℃-1800℃ brightness temperature as a reference radiation source. Therefore, the adjusting signal can be a current signal, the adjusting module 3 comprises a current controller, the current signal input to the iodine tungsten lamp radiation light source 21 is different, the radiant flux of the iodine tungsten lamp radiation light source 21 is different, that is, the radiated brightness temperature is different. Optionally, the calibration main body 1 is provided with a current control panel 13, and the current controller is arranged on the current control panel 13.

[0060] On the basis of the above-mentioned embodiments, as shown in Figure 4 , the iodine tungsten lamp radiation light source 21 comprises an iodine tungsten lamp 211, a first convex lens 212, a second convex lens 213 and a ground glass 214 arranged in sequence from the direction of the probe connection assembly 7 away to the probe connection assembly 7.

[0061] The ground glass 214 can cause light to produce diffuse reflection, so the light emitted by the iodine tungsten lamp 211 will pass through the first convex lens 212, the second convex lens 213 and the ground glass 214, and be uniformly dispersed to the measurement probe 8 or the standard probe 5 connected with the probe connection assembly 7, so that the detected result is more accurate.

[0062] In the optional embodiment of the present application, as shown in Figure 5 , the standard temperature measurement module 6 comprises a photoelectric conversion module 61, a measurement module 62 and a display module 63; the input end of the photoelectric conversion module 61 is electrically connected with the standard probe 5, the output end of the photoelectric conversion module 61 is electrically connected with the input end of the measurement module 62, the photoelectric conversion module 61 is used for converting the light signal detected by the standard probe 5 into an electric signal, and the measurement module 62 is used for determining the reference temperature detected by the standard probe 5 based on the electric signal converted by the photoelectric conversion module 61; the output end of the measurement module 62 is electrically connected with the display module 63, and the display module 63 is used for displaying the detected reference temperature.

[0063] The photoelectric conversion module 61 refers to a module capable of converting optical signals into electrical signals, and the measurement module 62 refers to a module capable of determining specific information of the reference temperature detected by the standard probe 5 according to the electrical signals. Since the iodine tungsten lamp radiation source 21 radiates optical signals, the standard probe 5 also detects optical signals, which are converted into electrical signals by the photoelectric conversion module 61, so that the measurement module 62 can determine the brightness temperature of the iodine tungsten lamp radiation source 21 radiated by the standard probe 5, that is, the reference temperature based on the electrical signals. The display module 63 refers to a module for display. In a specific embodiment, the display module 63 can be a display screen. The photoelectric conversion module 61, the measurement module 62 and the display module 63 can be arranged on the calibration main body 1. The photoelectric conversion module 61 and the measurement module 62 can be located inside the calibration main body 1, and the display module 63 can be located on the outer wall of the calibration main body 1, so as to facilitate the user to view. Meanwhile, the calibration main body 1 can be provided with a measurement circuit board 12, and the photoelectric conversion module 61 and the measurement module 62 can be arranged on the measurement circuit board 12 and connected through the measurement circuit board 12. The display module 63 can also be used to display the size of the current signal and other information.

[0064] Optionally, as shown in Figure 1 and Figure 5 , the calibration main body 1 is also provided with a probe signal connector 11, which is located on the same side of the probe connection assembly 7 on the calibration main body 1. The probe signal connector 11 is electrically connected with the photoelectric conversion module 61, so that when the standard probe 5 is connected with the probe connection assembly 7, the electrical connection between the standard probe 5 and the photoelectric conversion module 61 can be easily realized through the probe signal connector 11.

[0065] In an optional embodiment of the present application, as shown in Figure 1 and Figure 5 , the standard temperature measurement module 6 further comprises a gain adjustment module 64, which is electrically connected with the measurement module 62 and is used for adjusting the signal gain of the measurement module 62 to adjust the detected reference temperature. The gain adjustment module 64 refers to a module capable of adjusting the gain of the electrical signal obtained by the measurement module 62. When the gain is different, the value of the reference temperature determined by the measurement module 62 based on the electrical signal will also be different. In actual use, the measurement module 62 may also have deviation. By adjusting the signal gain of the measurement module 62 through the gain adjustment module 64, the value of the reference temperature detected by the measurement module 62 can be adjusted, so that the measurement module 62 can be calibrated.

[0066] In an optional embodiment of the present application, as shown in Figures 1-3 , the probe connection assembly 7 comprises a probe connection pipe 71, and the number of the probe connection pipe 71 is one. One end of the probe connection pipe 71 is connected with the reference temperature radiation source 2, and the other end is used for connecting at least one of the standard probe 5 and the measurement probe 8.

[0067] The probe connecting pipe 71 can be connected with at least one of the standard probe 5 and the measuring probe 8, and the probe connecting pipe 71 can be connected with the standard probe 5 or the measuring probe 8 according to requirements in use.

[0068] In the optional embodiment of the present application, the probe connecting assembly 7 comprises two probe connecting pipes 71, one end of each of the two probe connecting pipes 71 is connected with the reference temperature radiation source 2, and the other end of each of the two probe connecting pipes 71 is used for connecting the standard probe 5 and the measuring probe 8, respectively.

[0069] The two probe connecting pipes 71 can be connected with the standard probe 5 and the measuring probe 8, respectively, so that the reference temperature measured by the continuous temperature measuring system 9 and the standard temperature measuring module 6 can be compared, and the continuous temperature measuring system 9 can be calibrated more conveniently.

[0070] Embodiment two

[0071] Figure 6 A flow chart of a continuous casting machine molten steel temperature measuring system calibration method is provided for the continuous casting machine molten steel temperature measuring system calibration system of any embodiment of the present application, as shown in the figure, the continuous casting machine molten steel temperature measuring system calibration method comprises the following steps. Figure 6

[0072] S110, connecting the standard probe with the probe connecting assembly.

[0073] When the standard probe is connected with the probe connecting assembly, the standard probe can detect the reference temperature radiated by the reference temperature radiation source, and at this time, the standard temperature measuring module can determine the reference temperature based on the signal detected by the standard probe.

[0074] S120, adjusting the adjustment signal output to the reference temperature radiation source by the adjustment module until the reference temperature detected by the standard temperature measuring module reaches the preset calibration temperature.

[0075] The reference temperature radiated by the reference temperature radiation source is different when the adjustment signal is different, and when the reference temperature detected by the standard temperature measuring module reaches the preset calibration temperature, it means that the adjustment signal at this time is the signal that can make the reference temperature output by the reference temperature radiation source be the preset calibration temperature.

[0076] S130, locking the adjustment signal when the reference temperature detected by the standard temperature measuring module reaches the preset calibration temperature by the locking module.

[0077] ​The locking module can lock the adjustment signal output by the adjustment module, so as to facilitate subsequent control of the adjustment module to output a specific adjustment signal.

[0078] S140, connecting the measurement probe and the probe connection assembly.

[0079] When the measurement probe is connected to the probe connection assembly, the measurement probe can detect the reference temperature radiated by the reference temperature radiation source, and the continuous temperature measurement system can determine the reference temperature based on the signal detected by the measurement probe.

[0080] S150, controlling the adjustment module to output the adjustment signal locked by the locking module.

[0081] The adjustment signal locked by the locking module is a signal that can make the reference temperature output by the reference temperature radiation source be a preset calibration temperature.

[0082] S160, determining whether there is a temperature deviation between the temperature measured by the continuous temperature measurement system and the preset calibration temperature.

[0083] If yes, step S170 is performed, and if no, the calibration process can be ended. If there are multiple preset calibration temperatures to be calibrated, the step of connecting the standard probe and the probe connection assembly can be performed again to calibrate the next preset calibration temperature, until all the preset calibration temperatures are calibrated.

[0084] S170, calibrating the temperature measured by the continuous temperature measurement system based on the temperature deviation, until there is no temperature deviation between the temperature measured by the continuous temperature measurement system and the preset calibration temperature.

[0085] Since the adjustment signal locked by the locking module is a signal that can make the reference temperature output by the reference temperature radiation source be a preset calibration temperature, when the adjustment module outputs the adjustment signal locked by the locking module, the temperature measured by the continuous temperature measurement system is theoretically the preset calibration temperature. When the temperature detected by the continuous temperature measurement system deviates from the preset calibration temperature, it indicates that the temperature detected by the continuous temperature measurement system deviates, and the theoretical value should be the preset calibration temperature. At this time, the continuous temperature measurement system can be calibrated based on the preset calibration temperature, and the continuous temperature measurement system is adjusted to output the detected temperature as the preset calibration temperature, so as to realize calibration of the continuous temperature measurement system.

[0086] The scheme is realized by connecting the standard probe with the probe connecting assembly first, then adjusting the adjustment signal output by the adjustment module to the reference temperature radiation source until the reference temperature detected by the standard temperature measurement module reaches the preset calibration temperature, then locking the adjustment signal when the reference temperature detected by the standard temperature measurement module reaches the preset calibration temperature by the locking module, then connecting the measurement probe with the probe connecting assembly, then controlling the adjustment module to output the adjustment signal locked by the locking module, then determining whether there is a temperature deviation between the temperature measured by the continuous temperature measurement system and the preset calibration temperature, and finally calibrating the temperature measured by the continuous temperature measurement system based on the temperature deviation when there is a temperature deviation until there is no temperature deviation between the temperature measured by the continuous temperature measurement system and the preset calibration temperature. Therefore, the calibration of the continuous temperature measurement system is realized, the problem that the existing continuous casting machine molten steel temperature measurement system is difficult to calibrate is solved, the continuous casting machine molten steel temperature measurement system can be calibrated in time according to the field use condition, the measurement probe does not need to be disassembled and sent to the laboratory blackbody furnace for calibration, and the problems that the diameter ratio of the blackbody cavity opening of the blackbody furnace is not large and the temperature is not high are solved.

[0087] Embodiment three

[0088] Figure 7 A flowchart of a continuous casting machine molten steel temperature measurement system calibration method provided by Embodiment three of the application, optionally, before the adjustment of the adjustment signal output by the adjustment module to the reference temperature radiation source until the reference temperature detected by the standard temperature measurement module reaches the preset calibration temperature, the method further comprises calibrating the standard temperature measurement module. As shown in the figure, the continuous casting machine molten steel temperature measurement system calibration method comprises the following steps. Figure 7

[0089] S210, calibrate the standard temperature measurement module.

[0090] In actual application, the standard temperature measurement module may also have errors, and by calibrating the standard temperature measurement module, the subsequent calibration of the continuous casting machine molten steel temperature measurement system can be more accurate. In actual application, the continuous casting machine molten steel temperature measurement system can be calibrated according to the field use condition, and the standard temperature measurement module can be calibrated regularly, so that the calibration result is more accurate.

[0091] S220, connect the standard probe with the probe connecting assembly.

[0092] S230, adjust the adjustment signal output by the adjustment module to the reference temperature radiation source until the reference temperature detected by the standard temperature measurement module reaches the preset calibration temperature.

[0093] S240, lock the adjustment signal when the reference temperature detected by the standard temperature measurement module reaches the preset calibration temperature by the locking module.​

[0094] S250, connecting the measurement probe with the probe connection assembly.

[0095] S260, controlling the adjustment module to output the adjustment signal for locking the locking module.

[0096] S270, determining whether there is a temperature deviation between the temperature measured by the continuous temperature measurement system and the preset calibration temperature.

[0097] If yes, step S280 is performed, and if no, the calibration process can be ended. If there are multiple preset calibration temperatures to be calibrated, the step of connecting the standard probe with the probe connection assembly can be performed again to calibrate the next preset calibration temperature when no, until all the preset calibration temperatures are calibrated.

[0098] S280, calibrating the temperature measured by the continuous temperature measurement system based on the temperature deviation, until there is no temperature deviation between the temperature measured by the continuous temperature measurement system and the preset calibration temperature.

[0099] In an optional embodiment of the present application, as shown in Figure 8 calibrating the standard temperature measurement module comprises:

[0100] S211, placing the standard probe into the blackbody furnace.

[0101] The blackbody furnace refers to an object that can completely absorb external radiant energy and completely radiate all its own energy, so the temperature inside the blackbody furnace is relatively uniform.

[0102] S212, determining whether there is a deviation between the reference temperature detected by the standard temperature measurement module and the standard temperature of the blackbody furnace.

[0103] If yes, step S213 is performed, and if no, the calibration can be ended. When there are multiple preset calibration temperatures, the next preset calibration temperature can be calibrated when no, until all the preset calibration temperatures are calibrated.

[0104] S213, calibrating the reference temperature detected by the standard temperature measurement module based on the standard temperature of the blackbody furnace.

[0105] The standard temperature of the blackbody furnace refers to the temperature inside the blackbody furnace, which is a standard value. Since the standard probe is placed in the blackbody furnace, theoretically, the reference temperature detected by the standard temperature measurement module is consistent with the standard temperature of the blackbody furnace. When there is a deviation between the two, it indicates that the result measured by the standard temperature measurement module is not accurate and needs to be calibrated. At this time, the reference temperature detected by the standard temperature measurement module can be calibrated based on the standard temperature of the blackbody furnace, thereby realizing the calibration of the standard temperature measurement module.

[0106] On the basis of the above-mentioned embodiments, the standard temperature of the blackbody furnace is used to calibrate the reference temperature detected by the standard temperature measurement module, including:

[0107] The signal gain of the measurement module is adjusted by the gain adjustment module until the reference temperature detected by the measurement module is consistent with the standard temperature of the blackbody furnace.

[0108] The gain adjustment module is a module that can adjust the gain of the electrical signal obtained by the measurement module. When the gain is different, the value of the reference temperature determined by the measurement module based on the electrical signal will also be different. In actual use, the measurement module may also have deviations. By adjusting the signal gain of the measurement module through the gain adjustment module, the value of the reference temperature detected by the measurement module can be adjusted. By adjusting it to be consistent with the standard temperature of the blackbody furnace, the measurement module can be calibrated.

[0109] In an optional embodiment of the present application, the number of preset calibration temperatures is multiple, and the calibration of the standard temperature measurement module includes:

[0110] The standard temperature measurement module is calibrated based on a preset temperature calibration range, and the preset temperature calibration range includes multiple temperature calibration points, each temperature calibration point corresponding to a different preset calibration temperature.

[0111] The calibration of the standard temperature measurement module based on the preset temperature calibration range includes:

[0112] The preset temperature calibration range is divided into multiple calibration range segments based on multiple temperature calibration points.

[0113] Multiple preset calibration temperatures of the standard temperature measurement module are calibrated based on multiple temperature calibration points.

[0114] Multiple calibration range segments of the standard temperature measurement module are calibrated based on the calibration results of multiple temperature calibration points.

[0115] The plurality of temperature calibration points can be divided from small to large, so that two adjacent temperature calibration points and the temperature points therebetween can constitute a calibration range segment, and the two temperature calibration points are the end points of the calibration range segment. When the calibration value of the standard temperature measurement module at the temperature calibration point of the end point is obtained, that is, the deviation between the temperature measured by the standard temperature measurement module and the standard temperature of the black body furnace, the linear calibration formula for calibrating the standard temperature measurement module of the calibration range segment constituted by the two end point temperature calibration points can be determined. The adjacent calibration range segments are calibrated in sequence, and the calibration relationship of all the calibration range segments can be obtained, so that the calibration of the preset temperature calibration range of the standard temperature measurement module is realized. Through the above-mentioned segmented linear calibration, the calibration of the temperature calibration points does not affect each other, and the calibration accuracy is improved.

[0116] It should be understood that the various forms of flow shown above can be reordered, added to, or deleted from without departing from the scope of the present application. For example, the steps described in the present application can be executed in parallel, in sequence, or in a different order, as long as the desired results of the technical solutions of the present application can be achieved, and the present application is not limited herein.

[0117] The above detailed description does not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent replacement and improvement within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A continuous-caster-molten-steel-temperature-measuring-system calibration system for calibrating a continuous-caster-molten-steel-temperature-measuring system, the continuous-caster-molten-steel-temperature-measuring system comprising a measuring probe and a continuous temperature measuring system, the continuous temperature measuring system being electrically connected with the measuring probe and being configured to measure a molten-steel temperature detected by the measuring probe; characterized in that, The continuous-casting-steel-temperature measuring system calibration system comprises a calibration main body, a reference temperature radiation source, an adjusting module, a locking module, a standard probe and a standard temperature measuring module; The reference temperature radiation source is used for outputting a reference temperature, and an input end of the adjusting module is electrically connected with a control end of the reference temperature radiation source, for outputting an adjusting signal to adjust the reference temperature output by the reference temperature radiation source. The reference temperature radiation source is arranged on the calibration main body, and the calibration main body is provided with a probe connecting assembly, one end of the probe connecting assembly is connected with the reference temperature radiation source, and the other end of the probe connecting assembly is used for connecting at least one of the standard probe and the measuring probe. The standard probe is used for detecting the reference temperature output by the reference temperature radiation source, an input end of the standard temperature measuring module is electrically connected with an output end of the standard probe, for measuring the reference temperature detected by the standard probe; the standard temperature measuring module comprises a photoelectric conversion module and a measuring module; an input end of the photoelectric conversion module is electrically connected with the standard probe, an output end of the photoelectric conversion module is electrically connected with an input end of the measuring module, the photoelectric conversion module is used for converting the optical signal detected by the standard probe into an electric signal, and the measuring module is used for determining the reference temperature detected by the standard probe based on the electric signal converted by the photoelectric conversion module; the standard temperature measuring module further comprises a gain adjusting module, which is electrically connected with the measuring module, for adjusting the signal gain of the measuring module to adjust the detected reference temperature. The locking module is electrically connected with the adjusting module, for locking the adjusting signal output by the adjusting module when the reference temperature detected by the standard temperature measuring module reaches a preset calibration temperature when the probe connecting assembly is connected with the standard probe; The adjusting module is further used for outputting the adjusting signal locked by the locking module when the probe connecting assembly is connected with the measuring probe, so as to calibrate the continuous temperature measuring system based on the deviation between the temperature detected by the measuring probe measured by the continuous temperature measuring system and the preset calibration temperature.

2. The calibration system for a continuous caster molten steel temperature measurement system as claimed in claim 1, characterized by, The reference temperature radiation source comprises an iodine tungsten lamp radiation light source, and the adjusting module comprises a current controller, and the adjusting signal is a current signal.

3. The continuous caster molten steel temperature measuring system calibration system according to claim 2, characterized by, The iodine tungsten lamp radiation light source comprises an iodine tungsten lamp, a first convex lens, a second convex lens and a frosted glass which are sequentially arranged from a direction away from the probe connecting assembly to a direction close to the probe connecting assembly.

4. The calibration system for a continuous-caster molten-steel temperature measuring system according to claim 2 or 3, characterized by The standard temperature measuring module further comprises a display module; An output end of the measuring module is electrically connected with the display module, and the display module is used for displaying the detected reference temperature.

5. The continuous caster molten steel temperature measuring system calibration system according to any one of claims 1 to 3, characterized by, The probe connecting assembly comprises one or two probe connecting pipes; One end of one of the probe connecting pipes is connected with the reference temperature radiation source, and the other end is used for connecting at least one of the standard probe and the measuring probe; Two ends of the two probe connecting pipes are respectively connected with the reference temperature radiation source and the standard probe and the measuring probe.

6. A method of calibrating a continuous-caster molten-steel temperature measuring system, characterized by, The calibration method of the continuous-casting-steel-temperature measuring system according to any one of claims 1-5 comprises: connecting the standard probe with the probe connecting assembly; adjusting the adjustment signal output by the adjustment module to the reference temperature radiation source until the reference temperature detected by the standard temperature measuring module reaches the preset calibration temperature; locking the adjustment signal when the reference temperature detected by the standard temperature measuring module reaches the preset calibration temperature by the locking module; connecting the measuring probe with the probe connecting assembly; controlling the adjustment module to output the adjustment signal locked by the locking module; determining whether there is a temperature deviation between the temperature measured by the continuous temperature measuring system and the preset calibration temperature; if yes, calibrating the temperature measured by the continuous temperature measuring system based on the temperature deviation until there is no temperature deviation between the temperature measured by the continuous temperature measuring system and the preset calibration temperature; before the adjusting the adjustment signal output by the adjustment module to the reference temperature radiation source until the reference temperature detected by the standard temperature measuring module reaches the preset calibration temperature, the method further comprises calibrating the standard temperature measuring module by the gain adjustment module.

7. The method of calibrating a continuous caster molten steel temperature measurement system of claim 6, wherein, the calibrating the standard temperature measuring module by the gain adjustment module comprises: putting the standard probe into the blackbody furnace; determining whether there is a temperature deviation between the reference temperature detected by the standard temperature measuring module and the standard temperature of the blackbody furnace; if yes, calibrating the reference temperature detected by the standard temperature measuring module based on the standard temperature of the blackbody furnace by the gain adjustment module.

8. The method of calibrating a continuous caster molten steel temperature measurement system of claim 7, wherein, the calibrating the reference temperature detected by the standard temperature measuring module based on the standard temperature of the blackbody furnace by the gain adjustment module comprises: adjusting the signal gain of the measuring module by the gain adjustment module until the reference temperature detected by the measuring module is consistent with the standard temperature of the blackbody furnace.

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