A multi-point jet temperature measuring instrument for a continuous casting secondary cooling zone

Abstract

This invention discloses a multi-point air-jet temperature measuring instrument for the secondary cooling zone of continuous casting, relating to the technical field of temperature measuring devices for metal casting. The invention includes an outer shell, comprising a sleeve, a conical shell, and guide vanes. The inner side of the outlet end of the sleeve is a conical surface, within which coaxially distributed conical shells are installed. The conical surface and the conical shells are connected by guide vanes. A connecting seat is provided at the end of the conical shells away from the outlet of the outer shell. A second tube is connected to the end face of the connecting seat, and a rotating part is sleeved on the outer side of the second tube. Both the rotating part and the second tube are located within the outer shell, forming an air intake channel between the outer shell and the rotating part, and a heat dissipation channel between the rotating part and the second tube. The connecting end of a temperature measuring head installed inside the conical shell extends outwards through the second tube and the seat. This invention uses gas from the air intake pipe, which is discharged through a gas supply pipe and the outlet end of the sleeve, to remove dust and mist from the measuring end of the temperature measuring head, ensuring the accuracy of the detection.

Description

Technical Field

[0001] This invention belongs to the technical field of temperature measuring devices for metal casting, and in particular relates to a multi-point air jet temperature measuring instrument for the secondary cooling zone of continuous casting. Background Technology

[0002] In the continuous casting process of steel slabs in the metallurgical industry, secondary cooling determines the cooling effect and internal solidification behavior of the slab during solidification, and is a key aspect of slab internal quality control. Therefore, during continuous casting, controlling the slab to its optimal thermal state through online temperature monitoring is of great significance for ensuring slab quality.

[0003] The difficulty in measuring the surface temperature of slabs in continuous casting lies in the fact that the slab is in a continuous motion state, requiring the temperature measuring instrument to have a fast dynamic response time; and because the surface of the continuously cast slab is covered with iron oxide scale, water film, and water vapor in the space, it is difficult to measure accurately. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-point air jet temperature measuring instrument for the secondary cooling zone of continuous casting. The gas in the air inlet pipe is discharged through the air supply pipe and the outlet end of the shell to remove dust and mist from the measuring end of the temperature measuring head, thereby ensuring the accuracy of the detection and solving the related problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a multi-point air jet temperature measuring instrument for the secondary cooling zone of continuous casting, comprising an outer shell, which includes a shell sleeve, a conical shell, and guide vanes. The inner side of the outlet end of the shell sleeve is a conical surface, and conical shells coaxially distributed within the conical surface are installed. The conical surface and the conical shells are connected by the guide vanes. A connecting seat is provided at the end of the conical shells away from the outlet of the outer shell. A second tube is connected to the end face of the connecting seat, and a rotating part is sleeved on the outer side of the second tube. Both the rotating part and the second tube are located within the outer shell, forming an air intake channel between the outer shell and the rotating part, and a heat dissipation channel between the rotating part and the second tube. The port formed by the outer shell, the rotating part, and the second tube is fitted onto a base. An air intake pipe communicating with the air intake channel is installed on the base, and a drain pipe and an inlet pipe communicating with the heat dissipation channel are also provided on the base. The connecting end of the temperature measuring head installed inside the conical shell extends outward through the second tube and the base in sequence.

[0007] Furthermore, the side of the conical surface near the outlet end of the shell is the smaller end; the side of the conical shell near the outlet end of the shell is the smaller end, and the gap formed between the conical surface and the conical shell gradually decreases towards the outlet end.

[0008] Furthermore, a through groove is opened at the end of the tube body two near the connecting seat, and the tube body two is located outside the temperature measuring head; a heat dissipation channel one is formed between the tube body two and the temperature measuring head, and the heat dissipation channel one is connected to the liquid inlet pipe; a heat dissipation channel two is formed between the rotating part and the tube body two, and the heat dissipation channel two is connected to the liquid outlet pipe; the heat dissipation channel one and the heat dissipation channel two are connected by a through groove.

[0009] Furthermore, the rotating part includes a tube body and helical blades, with helical blades provided on both the inner and outer sides of the tube body; the two different helical blades have different rotation directions.

[0010] Furthermore, the end of the rotating part is sealed and mounted on the outside of the connecting seat by a bearing.

[0011] Furthermore, the end face of the seat is provided with multiple stepped holes; the ports of the rotating part and the tube body located on the outside of the outer shell increase in length sequentially.

[0012] Furthermore, a temperature measuring head is installed inside the conical shell, and the gap between the temperature measuring head and the conical shell support is filled with sealant.

[0013] Furthermore, the bottom surface of the base is evenly distributed with several threaded seats.

[0014] Furthermore, the outer shell is made of ceramic material.

[0015] The present invention has the following beneficial effects:

[0016] 1. In this invention, the air inlet pipe is connected to the air supply pipe, and the liquid inlet pipe is connected to the liquid supply pipe. External cooling water enters the heat dissipation channel through the liquid inlet pipe and is discharged through the liquid outlet pipe, thereby completing the heat dissipation of the temperature measuring head surface and isolating external heat from being transferred to the temperature measuring head. In addition, the gas in the air inlet pipe is discharged through the air supply pipe through the outlet end of the shell, completing the dust removal and demisting of the temperature measuring end of the temperature measuring head and ensuring the accuracy of the detection.

[0017] 2. In this invention, the gap between the conical surface and the conical shell gradually decreases towards the side closer to the outlet end. As the air passes through the outlet end, its volume gradually decreases, thereby increasing the airflow velocity and improving the effect of blowing away dust and water vapor at the shell detection end. In addition, the discharged gas moves along the spiral guide vanes, and the gas diffuses outward in a ripple pattern when discharged, improving the cleaning effect.

[0018] 3. In this invention, the gas passes through the spiral blades on the outside of the tube body in the air intake channel, which drive the tube body to rotate. At the same time, the two different spiral blades rotate in the same direction. The rotating spiral blades push the liquid in the heat dissipation channel two, which is formed by the rotating part and the tube body, to move outward, thereby drawing out cooling water and discharging it through the heat dissipation channel two. The external cooling water enters the heat dissipation channel one, reducing the use of power components.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the outer shell structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the outer shell of the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the seat structure of the present invention;

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Outer shell; 11. Shell sleeve; 111. Conical surface; 12. Conical shell; 121. Connecting seat; 13. Guide vane; 2. Seat body; 21. Threaded seat; 3. Air inlet pipe; 4. Drain pipe; 5. Liquid inlet pipe; 6. Rotating part; 61. Pipe body one; 62. Spiral blade; 7. Pipe body two; 8. Bearing; 9. Temperature measuring head. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0031] Please see Figure 1-6 As shown, this invention is a multi-point jet temperature measuring instrument for the secondary cooling zone of continuous casting, including an outer shell 1. The outer shell 1 includes a sleeve 11, a conical shell 12, and guide vanes 13. The inner side of the outlet end of the sleeve 11 is a conical surface 111. The conical shells 12 are coaxially distributed inside the conical surface 111. The conical surface 111 and the conical shells 12 are connected by the guide vanes 13. A connecting seat 121 is provided at the end of the conical shell 12 away from the outlet of the outer shell 1. A tube 7 is connected to the end face of the connecting seat 121. The outer surface of the tube 7... A rotating part 6 is sleeved on the side. The rotating part 6 and the second tube 7 are both located inside the outer shell 1. An air intake channel is formed between the outer shell 1 and the rotating part 6, and a heat dissipation channel is formed between the rotating part 6 and the second tube 7. The port formed by the outer shell 1, the rotating part 6 and the second tube 7 is fitted and installed on the base 2. An air intake pipe 3 connected to the air intake channel is installed on the base 2. The base 2 is also provided with a drain pipe 4 and an inlet pipe 5 connected to the heat dissipation channel. The connecting end of the temperature measuring head 9 installed inside the conical shell 12 extends outward through the second tube 7 and the base 2 in sequence.

[0032] The air inlet pipe 3 is connected to the air supply pipe, and the liquid inlet pipe 5 is connected to the liquid supply pipe. External cooling water enters the heat dissipation channel through the liquid inlet pipe 5 and is discharged through the liquid outlet pipe 4, thereby completing the heat dissipation of the surface of the temperature measuring head 9 and isolating the external heat from being transferred to the temperature measuring head 9. In addition, the gas in the air inlet pipe 3 is discharged through the air supply pipe through the outlet end of the shell 11, completing the dust removal and demisting of the temperature measuring end of the temperature measuring head 9 and ensuring the accuracy of the detection.

[0033] The side of the conical surface 111 closest to the outlet end of the shell 11 is the smaller end; the side of the conical shell 12 closest to the outlet end of the shell 11 is also the smaller end, and the gap formed between the conical surface 111 and the conical shell 12 gradually decreases towards the outlet end.

[0034] The gap formed between the conical surface 111 and the conical shell 12 gradually decreases towards the side closer to the outlet end. As the air passes through the outlet end, its volume gradually decreases, thereby increasing the airflow velocity and improving the effect of blowing away dust and water vapor at the detection end of the shell 11. In addition, the discharged gas moves along the spiral guide vane 13, and the gas diffuses outward in a ripple pattern when it is discharged, improving the cleaning effect.

[0035] The end of the tube body 7 near the connecting seat 121 has a through groove, and the tube body 7 is located outside the temperature measuring head 9; a heat dissipation channel 1 is formed between the tube body 7 and the temperature measuring head 9, and the heat dissipation channel 1 is connected to the liquid inlet pipe 5; a heat dissipation channel 2 is formed between the rotating part 6 and the tube body 7, and the heat dissipation channel 2 is connected to the liquid outlet pipe 4; the heat dissipation channel 1 and the heat dissipation channel 2 are connected by a through groove.

[0036] The rotating part 6 includes a tube body 61 and a spiral blade 62. The inner and outer sides of the tube body 61 are provided with spiral blades 62; the two different spiral blades 62 have different directions of rotation.

[0037] The gas passes through the spiral blades 62 located on the outside of the pipe body 61 in the air intake channel, which drive the pipe body 61 to rotate. At the same time, the two different spiral blades 62 rotate in different directions. The rotating spiral blades 62 push the liquid in the heat dissipation channel 2 formed by the rotating part 6 and the pipe body 7 to move outward, thereby drawing out the cooling water and discharging it through the heat dissipation channel 2. The external cooling water enters the heat dissipation channel 1, reducing the use of the power components.

[0038] The end of the rotating part 6 is sealed and installed on the outside of the connecting seat 121 by the bearing 8; the end face of the seat 2 is provided with multiple stepped holes; the rotating part 6 and the port of the tube 7 located on the outside of the outer shell 1 grow in sequence and are installed in the stepped holes.

[0039] The base 2 can also be provided with multiple stepped holes to enable the installation of a temperature measuring device consisting of multiple sets of outer shell 1, rotating part 6, tube 2 7 and temperature measuring head 9 on the base 2.

[0040] A temperature measuring head 9 is installed inside the conical shell 12. The gap between the temperature measuring head 9 and the bracket of the conical shell 12 is filled with sealant. The temperature measuring head 9 is a high-temperature infrared thermometer.

[0041] The bottom surface of the base 2 is evenly distributed with several threaded seats 21, which facilitates the fixed installation of the base 2. The outer shell 1 is made of ceramic material.

[0042] In use, the air inlet pipe 3 is connected to the air supply pipe, and the liquid inlet pipe 5 is connected to the liquid supply pipe. External cooling water enters the heat dissipation channel through the liquid inlet pipe 5 and is discharged through the liquid outlet pipe 4, thereby dissipating heat from the surface of the temperature sensor 9 and isolating external heat from being transferred to the temperature sensor 9. In addition, the gas in the air inlet pipe 3 is discharged through the air supply pipe through the outlet end of the housing 11, thus removing dust and mist from the temperature measuring end of the temperature sensor 9 and ensuring the accuracy of the detection.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-point jet temperature measuring instrument for the secondary cooling zone of continuous casting, comprising an outer casing (1), characterized in that: The outer shell (1) includes a shell sleeve (11), a conical shell (12), and guide vanes (13). The inner side of the outlet end of the shell sleeve (11) is a conical surface (111). The conical shells (12) are installed in the conical surface (111) and are coaxially distributed. The conical surface (111) and the conical shells (12) are connected by guide vanes (13). The end of the conical shells (12) away from the outlet of the outer shell (1) is provided with a connecting seat (121). The end face of the connecting seat (121) is connected to the tube body two (7), and the outer side of the tube body two (7) is fitted with a rotating part (6). The rotating part (6) and the tube body two (7) are both located inside the outer shell (1). An air intake channel is formed between the outer shell (1) and the rotating part (6), and a heat dissipation channel is formed between the rotating part (6) and the tube body two (7). The rotating part (6) includes a tube body one (61) and a spiral blade (62). The inner and outer sides of the tube body one (61) are provided with spiral blades (62), and the two different spiral blades (62) have different rotation directions. The port formed by the outer shell (1), the rotating part (6) and the second tube (7) is installed in the base (2). An air intake pipe (3) connected to the air intake channel is installed on the base (2). A drain pipe (4) and an inlet pipe (5) connected to the heat dissipation channel are also provided on the base (2). The connection end of the temperature measuring head (9) installed inside the conical shell (12) extends outward through the tube body (7) and the seat body (2) in sequence.

2. The multi-point jet air temperature measuring instrument for the secondary cooling zone of a continuous caster according to claim 1, characterized in that, The conical surface (111) has a smaller end on the side near the outlet end of the shell (11); The conical shell (12) has a smaller end on the side near the outlet end of the shell sleeve (11), and the gap formed between the conical surface (111) and the conical shell (12) gradually decreases towards the side near the outlet end.

3. The multi-point air jet temperature measuring instrument for the secondary cooling zone of continuous casting according to claim 1, characterized in that, The end of the tube body two (7) near the connecting seat (121) has a through groove, and the tube body two (7) is located on the outside of the temperature measuring head (9); A heat dissipation channel 1 is formed between the second tube (7) and the temperature measuring head (9). The first heat dissipation channel is connected to the liquid inlet pipe (5). A second heat dissipation channel 2 is formed between the rotating part (6) and the second tube (7). The second heat dissipation channel 2 is connected to the liquid outlet pipe (4). The first heat dissipation channel and the second heat dissipation channel are connected by a through groove.

4. The multi-point air jet temperature measuring instrument for the secondary cooling zone of continuous casting according to claim 1, characterized in that, The end of the rotating part (6) is sealed and mounted on the outside of the connecting seat (121) by a bearing (8).

5. The multi-point air jet temperature measuring instrument for the secondary cooling zone of continuous casting according to claim 1, characterized in that, The end face of the seat (2) is provided with multiple stepped holes; The rotating part (6) and the second tube (7) are located on the outside of the outer shell (1) and their ports grow sequentially.

6. The multi-point air jet temperature measuring instrument for the secondary cooling zone of continuous casting according to claim 1, characterized in that, A temperature measuring head (9) is installed inside the conical shell (12), and the gap between the temperature measuring head (9) and the bracket of the conical shell (12) is filled with sealant.

7. The multi-point air jet temperature measuring instrument for the secondary cooling zone of continuous casting according to claim 1, characterized in that, The bottom surface of the seat (2) is evenly distributed with several threaded seats (21).

8. The multi-point air jet temperature measuring instrument for the secondary cooling zone of continuous casting according to claim 1, characterized in that, The outer shell (1) is made of ceramic material.

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