A billet surface temperature measurement system with adaptive air jet

Abstract

The present invention relates to an adaptive air-jet billet surface temperature measurement system, comprising: a housing, one end of which has an air outlet pipe, a crystal rod disposed within the housing, a telescopic tube connected to the rear end of the crystal rod, a temperature measuring device disposed at the front end of the air outlet pipe, an air-jet assembly disposed on each side of the crystal rod, and the crystal rod connected to a temperature measuring device; the temperature measuring device, the heating device, the thermometer, and the telescopic tube are all connected to a control device. The adaptive air-jet billet surface temperature measurement system provided by the present invention uses a temperature detection device to measure the ambient temperature, heats the temperature of the gas ejected from the nozzle, and then generates a supersonic gas jet consistent with the ambient temperature through a jet gas source, continuously blowing out a stable, interference-free channel. This establishes a stable surface temperature characteristic signal transmission channel between the high-temperature smelting material and other signal receiving systems, thereby enabling continuous online measurement of the surface temperature of the high-temperature object.

Description

Technical Field

[0001] The invention relates to the field of temperature measuring equipment, in particular to a steel billet surface temperature measuring system with adaptive air jet. Background Art

[0002] my country is a major manufacturing country, but intelligent manufacturing has not been fully developed in many traditional industrial sectors, and the application of artificial intelligence is still limited. Currently, temperature monitoring is a key indicator in many industrial production processes. Online temperature measurement is of great significance for improving the quality of industrial products and realizing the automation and intelligent control of industrial production. Currently, there are some relatively mature technologies for industrial temperature measurement. For example, in general industrial environments, thermocouples and infrared thermometers are often used to measure the temperature of industrial production processes. However, for certain operating conditions with extremely high temperatures (over 1600°C) and accompanied by external environmental interference such as water vapor, such as in industries such as continuous casting and steelmaking, continuous online temperature measurement has not been well implemented. Summary of the Invention

[0003] The present invention aims to solve the problem that interference substances, mainly water vapor, can cause inaccurate measurement results when measuring the surface temperature of steel billets in the water cooling zone. The technical solution adopted by the present invention is: an adaptive air-jet steel billet surface temperature measurement system, comprising: a box body, an air outlet pipe at one end of the box body, a crystal rod disposed within the box body, a telescopic tube connected to the rear end of the crystal rod, a temperature measuring device disposed at the front end of the air outlet pipe, an air-jet assembly disposed on each side of the crystal rod, and the crystal rod connected to the temperature measuring device;

[0004] The jet assembly includes: an air storage device, an air storage bin and a nozzle, wherein the air storage device, the air storage bin and the nozzle are connected in sequence, the air storage bin is provided with a heating device, and the air storage bin is provided with a temperature gauge;

[0005] The temperature measuring device, the heating device, the temperature gauge and the telescopic tube are all connected to a control device.

[0006] A further improvement is that the nozzle is a Laval nozzle.

[0007] A further improvement is that a water cooling component is provided outside the nozzle.

[0008] A further improvement is that a semi-circular cone-shaped air jet outlet is provided at the front end of the nozzle.

[0009] A further improvement is that the water cooling assembly includes a water cooling sleeve, a water circulation device and a water circulation valve, the water cooling sleeve is arranged outside the nozzle, the water circulation device is connected to the water cooling sleeve through an inlet pipe and a return pipe, the water circulation valve is arranged on the inlet pipe and the return pipe, and the water circulation device and the water circulation valve are both connected to the control device.

[0010] A further improvement is that the control device includes: a temperature measuring controller, an air storage tank valve controller, a heating controller and a telescopic tube controller, the temperature measuring controller is connected to the temperature measuring device, the air storage tank valve controller is connected to the valve between the air storage tank and the nozzle, the heating controller is connected to the heating device, and the telescopic tube controller is connected to the telescopic tube.

[0011] The beneficial effects of the present invention are:

[0012] The adaptive air-jet billet surface temperature measurement system provided by the present invention uses a temperature detection device to measure the ambient temperature, heats the temperature of the gas ejected from the nozzle, and then generates a supersonic gas jet consistent with the ambient temperature through a blowing gas source, eliminating interferences such as smoke, water vapor, etc. that may be generated in industrial environments such as steelmaking, laser processing, and crystal growth, continuously blowing out a stable and interference-free channel, and establishing a stable surface temperature characteristic signal transmission channel between the high-temperature smelting material and other signal receiving systems, thereby realizing continuous online measurement of the surface temperature of high-temperature objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and examples.

[0014] Figure 1 The present invention is a schematic structural diagram of a steel billet surface temperature measurement system with adaptive air jet. DETAILED DESCRIPTION

[0015] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0016] In the description of the invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the invention.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of an invention, "plurality" means two or more, unless otherwise specifically defined.

[0018] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0019] like Figure 1 As shown, the present invention provides a billet surface temperature measurement system with adaptive air jet, comprising: a box 100, which may be a hollow barrel-shaped box, with an air outlet pipe 2 at one end of the box 100, a crystal rod 3 disposed in the box 100, a telescopic tube 7 connected to the rear end of the crystal rod 3, the telescopic tube 7 being capable of driving the crystal rod 3 to extend or retract into the air outlet pipe 2, a temperature measuring device 1 disposed at the front end of the air outlet pipe 2 for detecting the ambient temperature of the environment, an air jet assembly disposed on each side of the crystal rod 3 for jetting high-speed gas, and a temperature measuring device 8 connected to the crystal rod 3 for measuring the billet surface temperature;

[0020] The jet assembly includes: an air storage device 13, an air storage bin 6 and a nozzle 4. The air storage device 13, the air storage bin 6 and the nozzle 4 are connected in sequence. A valve is provided between the air storage bin 6 and the nozzle 4. A valve is also provided between the air storage device 13 and the air storage bin 6. A heating device 5 is provided on the air storage bin 6 for heating the gas in the air storage bin to the same temperature as the ambient temperature. A thermometer 19 is provided on the air storage bin 6. The heating device 5 can be a high-temperature resistance wire.

[0021] The temperature measuring device 1 , the heating device 5 , the temperature gauge 19 and the telescopic tube 7 are all connected to a control device 9 .

[0022] The gas storage device 13 in this embodiment stores nitrogen.

[0023] This measurement system uses temperature detection equipment to measure the ambient temperature, heats the temperature of the gas ejected from the nozzle, and then generates a supersonic gas jet consistent with the ambient temperature through the injection gas source. This eliminates interference such as smoke, water vapor, etc. that may be generated in industrial environments such as steelmaking, laser processing, and crystal growth, and continuously blows out a stable and interference-free channel. It establishes a stable surface temperature characteristic signal transmission channel between the high-temperature smelting object and other signal receiving systems, thereby realizing continuous online measurement of the surface temperature of high-temperature objects.

[0024] A further improvement is that the nozzle 4 is a Laval nozzle.

[0025] A further improvement is that the nozzle 4 is provided with a water cooling component outside.

[0026] A further improvement is that a semi-circular cone-shaped air injection port 17 is provided at the front end of the nozzle 4.

[0027] A further improvement is that the water cooling assembly includes a water cooling sleeve, a water circulation device 15 and a water circulation valve 14, the water cooling sleeve is arranged outside the nozzle 4, the water circulation device 15 is connected to the water cooling sleeve through an inlet pipe and a return pipe, the water circulation valve 14 is arranged on the inlet pipe and the return pipe, and the water circulation device 15 and the water circulation valve 14 are both connected to the control device 9.

[0028] Further improvement: the control device 9 includes: a temperature measurement controller 16, an air storage tank valve controller 13, a heating controller 11 and a telescopic tube controller 10, the temperature measurement controller 16 is connected to the temperature measuring device 1, the air storage tank valve controller 13 is connected to the valve group between the air storage tank 6 and the nozzle 4, the heating controller 11 is connected to the heating device 5, and the telescopic tube controller 10 is connected to the telescopic tube 7.

[0029] The method for continuously measuring the temperature of a steel billet in a water-cooling chamber by using the measurement system comprises the following steps:

[0030] Step 1: Adjust the signal converter in the control console, open the water cooling component gear, and inject water into the two Laval nozzles containing water cooling sleeves through the water cooling pipes. Close the gear after filling.

[0031] Step 2: Adjust the signal converter in the console, open the valve group gear, inject nitrogen gas source into the two gas storage bins through the nitrogen gas source inlet until they are full, and then close the gear. The stop time depends on the output efficiency of the gas storage device and the size of the gas storage bin;

[0032] Step 3: Adjust the signal converter in the console and turn on the "sensing system" gear to send out an ambient temperature measurement detection signal. The temperature measurement device starts working and transmits back the ambient temperature signal while the billet is cooled by water mist;

[0033] Step 4: The control and signal receiving station obtains the real-time temperature data in the water-cooling chamber based on the signal sent back by the temperature measuring device;

[0034] Step 5: Adjust the signal converter in the control console and turn on the "current output" gear to heat the heating device wrapped around the gas storage tank body. At the same time, the real-time temperature inside the tank is reflected on the gas storage tank temperature gauge. When the temperature data obtained by the gas storage tank temperature gauge and the control and signal receiving station are consistent, turn off the gear;

[0035] Step 6: Adjust the gas storage valve control system on the console to the "on" position and simultaneously open the valves of both gas storage tanks. Acceleration through the Laval nozzle generates a supersonic gas jet, which penetrates the water mist in the water-cooling chamber through the gas output channel, and the exposed billet surface appears in the jet impact zone. After 1-2 seconds, the supersonic gas jet stabilizes, forming a pure cylindrical, water vapor-free crystal temperature measurement channel between the exposed billet surface and the gas output channel.

[0036] Step 7: Adjust the signal converter in the control console to the "telescopic tube control" position. Extend the crystal rod fixed inside the front end of the telescopic tube through the air outlet pipe 2 into the water cooling chamber. Receive the temperature signal of the exposed billet surface. Determine the signal reception time as Tc, which is 5-10s.

[0037] Step 8: The temperature measurement signal is transmitted to the temperature measurement control system of the temperature measurement equipment via the transmission wire. The measured surface temperature of the steel billet is obtained after calculation. After reaching the set temperature measurement time Tc, the "sensing system" gear, "current output" gear and "telescopic tube control" gear are turned off, the crystal rod is retracted, and the gas storage valve control system of the console is adjusted to the "off gear". The temperature measurement is completed and return to step 2.

[0038] Furthermore, the control converter will not automatically stop outputting the original gear signal when opening other gears, that is, the other gears will not automatically rebound to the "off" end after switching. If the original gear is not needed to continue working, the original gear must be manually adjusted to the "off" end.

[0039] In the present invention, the crystal signal receiving, the gas storage valve group control and the signal converter are three independent systems, which do not interfere with each other and work independently.

[0040] The invention is suitable for monitoring the real-time temperature of the steel billet surface when the molten steel is pulled out of the crystallizer at a certain speed by the billet drawing machine for secondary cooling and forced cooling after being quenched.

[0041] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A billet surface temperature measurement system with adaptive air jet, characterized in that: include: A box body, one end of which has an air outlet pipe, a crystal rod is arranged in the box body, a telescopic tube is connected to the rear end of the crystal rod, a temperature measuring device is arranged at the front end of the air outlet pipe, an air injection assembly is respectively provided on both sides of the crystal rod, and the crystal rod is connected to the temperature measuring device; The jet assembly includes: an air storage device, an air storage bin and a nozzle, wherein the air storage device, the air storage bin and the nozzle are connected in sequence, the air storage bin is provided with a heating device, and the air storage bin is provided with a temperature gauge; The temperature measuring device, the heating device, the temperature gauge and the telescopic tube are all connected to a control device; A water cooling component is provided outside the nozzle; The nozzle is a Laval nozzle; The front end of the nozzle is provided with a semi-circular table-shaped air jet; The control device includes: a temperature measurement controller, a gas storage tank valve controller, a heating controller and a telescopic tube controller, wherein the temperature measurement controller is connected to the temperature measurement device, the gas storage tank valve controller is connected to the valve between the gas storage tank and the nozzle, the heating controller is connected to the heating device, and the telescopic tube controller is connected to the telescopic tube; The temperature measuring device is used to detect the ambient temperature of the environment; The temperature measuring device is used to measure the surface temperature of the steel billet; The heating device is used to heat the gas in the gas storage bin to the same temperature as the ambient temperature.

2. The billet surface temperature measurement system with adaptive air jet according to claim 1, characterized in that: The water cooling assembly includes a water cooling sleeve, a water circulation device and a water circulation valve. The water cooling sleeve is arranged outside the nozzle. The water circulation device is connected to the water cooling sleeve through an inlet pipe and a return pipe. The water circulation valve is arranged on the inlet pipe and the return pipe, and the water circulation device and the water circulation valve are both connected to the control device.

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