CN218673962U - Online temperature and heat flow detection device for crystallizer copper plate in laboratory - Google Patents
Online temperature and heat flow detection device for crystallizer copper plate in laboratory Download PDFInfo
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- CN218673962U CN218673962U CN202223187855.9U CN202223187855U CN218673962U CN 218673962 U CN218673962 U CN 218673962U CN 202223187855 U CN202223187855 U CN 202223187855U CN 218673962 U CN218673962 U CN 218673962U
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Abstract
The utility model discloses it provides a laboratory crystallizer copper online temperature and heat flow detection device to fit, including hot plate, copper, cooling device and thermocouple, the copper sets up on the hot plate, cooling device sets up on the copper, cooling device has the business turn over water pipe way that supplies the cooling water business turn over, cooling device is used for cooling off the copper, the thermocouple is used for detecting the temperature of copper. The heat flow at a certain position in the copper plate is obtained by a Fourier heat conduction formula through two thermocouples arranged at the positions with different thicknesses at the position by directly measuring the temperatures of the copper plate at the different thicknesses. The utility model discloses an online temperature of laboratory crystallizer copper and heat flow detection device can guide the online temperature of square billet crystallizer copper pipe and heat flow in the actual production to guarantee to gather temperature data's reliability, can provide the foundation for follow-up research such as blank shell thickness distribution, casting blank crackle prediction, casting blank surface quality diagnosis and equipment state diagnosis.
Description
Technical Field
The utility model belongs to the technical field of the metallurgical continuous casting technique and specifically relates to a laboratory crystallizer copper is at line temperature and heat flow detection device.
Background
The crystallizer, called the "heart" of the continuous casting machine, takes on the task of initially solidifying the molten steel and forming a continuous cast slab with a certain slab shell thickness. On-line temperature and heat flow detection of a crystallizer copper pipe becomes important content of detection in the modern continuous casting production process, but the aspect has some problems, mainly comprising the following steps:
(1) Most of the currently detected parameters are temperature, and the heat flow distribution condition is calculated through a model, but the heat transfer and solidification conditions of the casting blank cannot be truly reflected, and actually measured heat flow data are lacked;
(2) Due to the lack of field measured data, the study on the heat flow of the crystallizer mostly analyzes the average heat flow of the slab crystallizer, and only can reflect the cooling and heat transfer effects of the crystallizer on the whole and cannot accurately describe the heat flow of different positions of the crystallizer;
(3) Because the slab crystallizer has a large section, a thermocouple is usually inserted into a hole on the crystallizer and is fastened by a threaded rod with a spring; because the section of the small square billet crystallizer is small, the adoption of a thermocouple similar to a slab crystallizer can cause insufficient installation space, and the acquired inaccurate temperature data can influence the control link of the subsequent production process and the post-analysis processing part of the data.
Therefore, the heat flow of the crystallizer, particularly the size and the distribution of the local heat flow of the small square billet crystallizer are researched, the reliability of the collected temperature data is ensured, and a basis can be provided for subsequent researches such as billet shell thickness distribution, billet crack prediction, billet surface quality diagnosis, equipment state diagnosis and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an online temperature of laboratory crystallizer copper and thermal current detection device aims at through the principle experiment, guides the online temperature of square billet crystallizer copper pipe and thermal current in the actual production to detect, guarantees the reliability of gathering temperature data.
The utility model provides a pair of online temperature of laboratory crystallizer copper and thermal current detection device adopts following technical scheme:
the utility model provides an online temperature of laboratory crystallizer copper and heat flow detection device, includes hot plate, copper, cooling device and thermocouple, the copper sets up on the hot plate, cooling device sets up on the copper, cooling device has the business turn over water pipe that supplies the cooling water business turn over, cooling device is used for cooling off the copper, the thermocouple is used for detecting the temperature of copper.
Optionally, a temperature measuring hole is formed in the copper plate, and the thermocouple is inserted into the temperature measuring hole to detect the temperature of the copper plate.
Optionally, the temperature measuring holes are arranged in 1-3 rows along the water flow direction of the copper plate, 1-4 groups of the temperature measuring holes are arranged in each row, and each group of the temperature measuring holes is arranged in a deep and shallow manner.
Optionally, the thermocouple includes a long thermocouple and a short thermocouple, the long thermocouple is inserted into the deep hole of the temperature measuring hole, and the short thermocouple is inserted into the shallow hole of the temperature measuring hole.
Optionally, a wiring groove is formed in the copper plate, and a lead of the thermocouple is arranged in the wiring groove.
Optionally, the cooling device includes a cooling water channel communicated with the water inlet and outlet pipeline, and a cooling water seam communicated with the cooling water channel is arranged on one side of the cooling device close to the copper plate.
Optionally, the height of the cooling water seam is 1-4 mm.
Optionally, the water inlet and outlet pipeline includes an inlet side water inlet pipeline and an outlet side water outlet pipeline, the inlet side of the inlet side water inlet pipeline is provided with a flow sensor and a temperature sensor i, and the outlet side water outlet pipeline is provided with a temperature sensor ii.
Optionally, the cross-sectional dimension of the cooling device is the same as the cross-sectional dimension of the copper plate.
Optionally, the copper plate has a cross-sectional dimension (90 mm × 90 mm) to 200mm × 200 mm) and a thickness of 10 to 20mm.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the heat flow at a certain position in the copper plate is obtained by a Fourier heat conduction formula through two thermocouples arranged at the positions with different thicknesses at the position by directly measuring the temperature of the copper plate at the positions with different thicknesses. The utility model discloses an online temperature of laboratory crystallizer copper and heat flow detection device can guide the online temperature of square billet crystallizer copper pipe and heat flow in the actual production to guarantee to gather temperature data's reliability, can provide the foundation for follow-up research such as blank shell thickness distribution, casting blank crackle prediction, casting blank surface quality diagnosis and equipment state diagnosis etc
2. The thermocouple is fastened in the temperature measuring hole, and the thermocouple head is in close contact with the bottom of the temperature measuring hole, so that the reliability of the acquired temperature data is ensured;
3. the size and distribution of the local heat flow of the copper plate can be obtained through the temperature gradient measured by a long thermocouple and a short thermocouple and the depth difference of a deep temperature measuring hole and a shallow temperature measuring hole;
4. the cross section size of the copper plate is equivalent to the cross section size of the copper pipe of the small square billet crystallizer, and the online temperature and heat flow detection of the copper pipe of the small square billet crystallizer in actual production is guided through the principle test.
Drawings
FIG. 1 is a schematic view of the on-line temperature and heat flow detection device for the crystallizer copper plate in the laboratory;
FIG. 2 is a schematic view of the crystallizer copper plate temperature measuring holes and wiring grooves of the present invention;
fig. 3 is a schematic view showing the thermocouple embedded in the present invention.
Description of reference numerals: 1. heating plates; 2. a copper plate; 3. a cooling device; 4. a water inlet and outlet pipeline; 5. a flow sensor; 6. a temperature sensor I; 7. a temperature sensor II; 8. a temperature measuring hole; 9. wiring grooves; 10. a thermocouple; 11. a cooling water passage; 12. and cooling the water seam.
Detailed Description
The present invention will be described in further detail with reference to the accompanying fig. 1-3.
The embodiment of the utility model discloses laboratory crystallizer copper is temperature and heat flux detection device on line.
Referring to fig. 1, 2 and 3, the on-line temperature and heat flow detection device for the crystallizer copper plate in the laboratory comprises a heating plate 1, a copper plate 2, a cooling device 3, a water inlet and outlet pipeline 4 and a thermocouple 10. The copper plate 2 is arranged above the heating plate 1, the cooling device 33 is arranged above the copper plate 2, the cooling device 33 is used for cooling the copper plate 2, the cooling device 33 is provided with a water inlet and outlet pipeline 11 for cooling water to enter and exit, and the thermocouple 10 is used for detecting the temperature of the copper plate 2.
The heating plate 1 can set different temperatures according to requirements, and the hot surface temperature of the crystallizer copper pipe can be truly reflected as far as possible.
The cross-sectional dimension of the copper plate 2 is equivalent to the cross-sectional dimension of the copper tube of the billet mold, and is generally (90 mm × 90 mm) to (200 mm × 200 mm), and the thickness is 10 to 20mm, and in the present embodiment, the dimension of the copper plate 2 is 200mm × 150mm × 15mm.
The thermocouple 10 is arranged in the temperature measuring hole 8 of the copper plate 2 and is fastened in the temperature measuring hole, and the head of the thermocouple 10 is in close contact with the bottom of the temperature measuring hole 8, so that the reliability of temperature data acquisition is ensured. Two thermocouples 10 are arranged, the two thermocouples 10 are arranged in a long-short mode, the long thermocouple 10 is inserted into a deep hole of the temperature measuring hole 8, the short thermocouple 10 is inserted into a shallow hole of the temperature measuring hole 8, and a lead of the thermocouple 10 is arranged in the wiring groove 9. The size and distribution of the local heat flow of the copper plate 2 can be obtained through the temperature gradient measured by the long and short thermocouples 10 and the depth difference of the deep and shallow temperature measuring holes 8.
The cooling device 3 is provided with a cooling water slit 12 on the side close to the copper plate 2, and the height of the cooling water slit 12 is 1 to 4mm, and in the present embodiment, the height of the cooling water slit 12 is 3mm.
Inlet and outlet water pipe 4 divides into entrance side inlet channel and exit side outlet channel, is provided with flow sensor 5 and temperature sensor I6 at the entrance side of entrance side inlet channel, is provided with temperature sensor II 7 at the exit side of exit side outlet channel, and in this embodiment, flow sensor 5 is used for the flow of record experiment in-process cooling water, and temperature sensor I6 is used for the temperature of record experiment in-process cooling water entrance side, and temperature sensor II 7 is used for the temperature of record experiment in-process cooling water exit side.
In this embodiment, the flow sensor 5, the temperature sensor i 6, and the temperature sensor ii 7 all adopt a control method in the prior art, which is not described herein again.
The size of the cross section of the cooling device 3, which is in contact with the copper plate 2, is the same as that of the cross section of the copper plate 2, and the online temperature and heat flow detection of the small square billet crystallizer copper pipe in actual production is guided through the principle test.
The working principle is as follows: the smooth surface of the copper plate 2 is attached to the heating plate 1, and the surface provided with the temperature measuring holes 8 and the wiring groove 9 is attached to the cooling device 3; cooling water is connected, and the heating plate 1 is heated; the cooling water flows into the cooling water channel 11 of the cooling device 3 through the inlet side water inlet pipeline and then enters the cooling water seam 12; the cooling water seam 12 of the experimental device is equivalent to the water seam between the outer side of the copper pipe of the small square billet crystallizer and the inner side of the water jacket and is used for taking away the heat of the copper plate 2; the cooling water with the increased temperature flows out from the outlet side water outlet pipeline.
The method for measuring the local heat flow of the copper plate 2 comprises the following steps: the heat flow at a certain location in the copper plate 2 is derived from the fourier heat transfer formula by means of the directly measured temperatures at different thicknesses of the copper plate 2 by means of two thermocouples 10 placed at different thicknesses of the location.
In the formula, T is the temperature measured by the long thermocouple 10, T0 is the temperature measured by the short thermocouple 10, Δ r is the distance between the two thermocouples 10, and λ is the thermal conductivity of the copper tube. According to the formula, the heat flow of each detection point can be directly calculated.
Above is the preferred embodiment of the utility model, not limit according to this the utility model discloses a protection scope, the event: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The utility model provides an online temperature of laboratory crystallizer copper and heat flow detection device which characterized in that: including hot plate (1), copper (2), cooling device (3) and thermocouple (10), copper (2) set up on hot plate (1), cooling device (3) set up on copper (2), cooling device (3) have business turn over water pipe (4) that supply the cooling water business turn over, cooling device (3) are used for cooling off copper (2), thermocouple (10) are used for detecting the temperature of copper (2).
2. The on-line temperature and heat flow detection device for the crystallizer copper plate in the laboratory according to claim 1, characterized in that: temperature measuring holes (8) are formed in the copper plate (2), and the thermocouples (10) are inserted into the temperature measuring holes (8) to detect the temperature of the copper plate (2).
3. The on-line temperature and heat flow detection device for the crystallizer copper plate in the laboratory according to claim 2, characterized in that: the temperature measuring holes (8) are arranged in 1-3 rows along the water flow direction of the copper plate (2), 1-4 groups of temperature measuring holes (8) are arranged in each row, and each group of temperature measuring holes (8) are arranged in a deep-shallow manner.
4. The on-line temperature and heat flow detection device for the crystallizer copper plate in the laboratory according to claim 3, wherein: the thermocouple (10) comprises a long thermocouple and a short thermocouple, the long thermocouple is inserted into a deep hole of the temperature measuring hole (8), and the short thermocouple is inserted into a shallow hole of the temperature measuring hole (8).
5. The on-line temperature and heat flow detection device for the crystallizer copper plate in the laboratory according to claim 4, wherein: a wiring groove (9) is formed in the copper plate (2), and a lead of the thermocouple (10) is arranged in the wiring groove (9).
6. The on-line temperature and heat flow detection device for the crystallizer copper plate in the laboratory according to claim 1, characterized in that: the cooling device (3) comprises a cooling water channel (11) communicated with the water inlet and outlet pipeline (4), and a cooling water seam (12) communicated with the cooling water channel (11) is arranged on one side, close to the copper plate (2), of the cooling device (3).
7. The on-line temperature and heat flow detection device for the crystallizer copper plate in the laboratory according to claim 6, wherein: the height of the cooling water seam (12) is 1-4 mm.
8. The on-line temperature and heat flow detection device for the crystallizer copper plate in the laboratory according to claim 1, characterized in that: the water inlet and outlet pipeline (4) comprises an inlet side water inlet pipeline and an outlet side water outlet pipeline, a flow sensor (5) and a temperature sensor I (6) are arranged on the inlet side of the inlet side water inlet pipeline, and a temperature sensor II (7) is arranged on the outlet side water outlet pipeline.
9. The on-line temperature and heat flow detection device for the crystallizer copper plate in the laboratory according to claim 1, characterized in that: the cross section of the cooling device (3) is the same as the cross section of the copper plate (2).
10. The on-line temperature and heat flow detection device for the crystallizer copper plate in the laboratory according to claim 1, characterized in that: the copper plate (2) has a cross-sectional dimension (90 mm × 90 mm) to (200 mm × 200 mm) and a thickness of 10 to 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223187855.9U CN218673962U (en) | 2022-11-29 | 2022-11-29 | Online temperature and heat flow detection device for crystallizer copper plate in laboratory |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223187855.9U CN218673962U (en) | 2022-11-29 | 2022-11-29 | Online temperature and heat flow detection device for crystallizer copper plate in laboratory |
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| CN218673962U true CN218673962U (en) | 2023-03-21 |
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| CN202223187855.9U Active CN218673962U (en) | 2022-11-29 | 2022-11-29 | Online temperature and heat flow detection device for crystallizer copper plate in laboratory |
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