CN114515764A - Wall thickness and high temperature on-line measuring system of hot-rolled steel pipe - Google Patents
Wall thickness and high temperature on-line measuring system of hot-rolled steel pipe Download PDFInfo
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- CN114515764A CN114515764A CN202210140922.7A CN202210140922A CN114515764A CN 114515764 A CN114515764 A CN 114515764A CN 202210140922 A CN202210140922 A CN 202210140922A CN 114515764 A CN114515764 A CN 114515764A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 154
- 239000010959 steel Substances 0.000 title claims abstract description 154
- 239000000523 sample Substances 0.000 claims abstract description 100
- 238000012544 monitoring process Methods 0.000 claims abstract description 56
- 238000001816 cooling Methods 0.000 claims abstract description 54
- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 230000006641 stabilisation Effects 0.000 claims abstract description 11
- 238000011105 stabilization Methods 0.000 claims abstract description 11
- 238000005098 hot rolling Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 9
- 206010063385 Intellectualisation Diseases 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000013500 data storage Methods 0.000 description 2
- 238000013079 data visualisation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/006—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B2038/004—Measuring scale thickness
Abstract
The invention discloses a wall thickness and high temperature on-line measuring system of a hot-rolled steel pipe. The monitoring terminal is respectively connected with the multi-channel ultrasonic monitoring module and the electric control module through the communication module, the multi-channel ultrasonic monitoring module is respectively connected with the probe group and the electric control module, and the electric control module is respectively connected with the cooling module, the steel pipe motion stabilization module, the sensor module and the steel pipe follow-up module; the cooling module is respectively connected with the steel pipe follow-up module and the probe group; the multi-channel ultrasonic monitoring module, the electrical control module, the cooling module and the communication module are arranged in the control cabinet, and the probe group is arranged in the steel pipe follow-up module; the control cabinet, the steel pipe motion stabilization module, the sensor module and the steel pipe follow-up module are installed on a hot rolling production line. The invention realizes the automatic online measurement of the wall thickness of the hot rolled steel pipe, fills the technical blank of the online detection of the hot rolled steel pipe, reduces the operation complexity, improves the detection timeliness and provides data support for the automation, digitization and intellectualization of production.
Description
Technical Field
The invention relates to a steel pipe wall thickness online measuring system in the field of hot-rolled steel pipe detection and monitoring, in particular to a wall thickness and high temperature online measuring system of a hot-rolled steel pipe.
Background
Due to the influence of factors such as high temperature (about 800-1200 ℃) of the steel pipe, severe production environment conditions (high temperature, metal dust, vibration and the like) and the like in the hot rolling process, no long-term and stable-running hot rolled steel pipe wall thickness online detection or monitoring system exists at home and abroad at present. At present, the detection method of the hot-rolled steel pipe is mainly off-line (off-line) detection, namely, the steel pipe which is cooled for hours on a cooling bed is detected by tools such as a mechanical measuring tool or ultrasonic detection equipment. The operation of off-line detection is complex, the accuracy and reliability of the detection result are easily influenced by human factors, the hysteresis of the detection result is obvious, the reference effect on the timely adjustment of the production process and parameters cannot be realized, and the realization of production automation, digitization and intellectualization is not facilitated.
Disclosure of Invention
In order to solve the problems and requirements in the background art, the invention provides an online measuring system for the wall thickness and the high temperature of a hot rolled steel pipe, which is used for solving the problem that the prior art cannot realize online measurement of the wall thickness and the high temperature of the hot rolled steel pipe and fills the blank of the online measuring system and the technology for the wall thickness and the high temperature of the hot rolled steel pipe.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The device comprises a control cabinet, a multi-channel ultrasonic monitoring module, an electrical control module, a cooling module, a communication module, a steel pipe motion stabilization module, a sensor module, a steel pipe follow-up module, a probe group and a monitoring terminal;
the monitoring terminal is respectively connected with the multi-channel ultrasonic monitoring module and the electric control module through the communication module, the multi-channel ultrasonic monitoring module is also respectively connected with the probe group and the electric control module, and the electric control module is also respectively connected with the cooling module, the steel pipe motion stabilization module, the sensor module and the steel pipe follow-up module; the cooling module is also respectively connected with the steel pipe follow-up module and the probe group;
the multi-channel ultrasonic monitoring module, the electrical control module, the cooling module and the communication module are arranged in the control cabinet, and the probe group is arranged in the steel pipe follow-up module; the control cabinet, the steel pipe motion stabilization module, the sensor module and the steel pipe follow-up module are integrally installed on a hot rolling production line; the steel pipe motion stabilizing module, the sensor module and the steel pipe follow-up module are sequentially arranged on the outer circumferential side surface of the steel pipe along the advancing direction of the steel pipe, the steel pipe motion stabilizing module is used for reducing radial run-out of the steel pipe, the sensor module is used for measuring the position, the speed and the temperature of the steel pipe, and the probe group arranged on the steel pipe follow-up module is used for measuring the wall thickness of the steel pipe.
The steel pipe follow-up module is sleeved on the outer circumferential side face of the steel pipe, and the steel pipe follow-up module and the steel pipe are arranged at intervals.
The probe set comprises at least one probe, and the probe is respectively connected with the multi-channel ultrasonic monitoring module and the cooling module; the probe group consists of a probe, and the probe is arranged on the inner circumferential side surface of the steel tube follow-up module; the probe group consists of a plurality of probes, the probes are circumferentially and alternately arranged on the inner circumferential side surface of the steel pipe follow-up module, and a gap is formed between the probes and the outer circumferential side surface of the steel pipe; the steel pipe follow-up module adjusts the distance between each probe and the outer circumferential side of the steel pipe along the motion direction of the probe so that each probe can be switched between a probe standby position and a probe working position.
The probe is an electromagnetic ultrasonic probe.
And a cooling mechanism is arranged in the steel pipe follow-up module and is connected with the cooling module through a cooling pipeline.
The probe is internally provided with a cooling mechanism, and the cooling mechanism is connected with a cooling module through a cooling pipeline.
The sensor module comprises a steel pipe position sensor, a steel pipe speed sensor and a steel pipe temperature sensor.
The invention has the beneficial effects that:
The invention realizes the on-line measurement of the wall thickness of the hot-rolled pipe, and improves the measurement precision and the measurement real-time property of the wall thickness of the hot-rolled pipe; labor cost is saved; key parameters are provided for timely adjustment of the production process, so that the product quality is improved, and the production cost is saved; meanwhile, key data are provided for automation and intellectualization of hot rolled pipe production.
Drawings
FIG. 1 is a general block diagram of the system of the present invention;
FIG. 2 is a schematic view of a steel pipe follower module and probe according to an embodiment of the present invention;
in the figure: the device comprises a control cabinet 1, a multi-channel ultrasonic monitoring module 2, an electrical control module 3, a cooling module 4, a communication module 5, a steel pipe motion stabilization module 6, a sensor module 7, a steel pipe follow-up module 8, a probe 9, a monitoring terminal 10, a steel pipe 11, a probe standby position 12 and a probe working position 13.
Detailed Description
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
As shown in fig. 1, the ultrasonic monitoring system comprises a control cabinet 1, a multi-channel ultrasonic monitoring module 2, an electrical control module 3, a cooling module 4, a communication module 5, a steel pipe motion stabilization module 6, a sensor module 7, a steel pipe follow-up module 8, a probe group and a monitoring terminal 10;
The monitoring terminal 10 is installed and arranged in a monitoring room, and wall thickness monitoring results can be checked and analyzed, system monitoring parameters can be set, system states can be monitored and the like through the monitoring terminal 10. The monitoring terminal 10 is internally provided with a temperature compensation algorithm, and can correct the wall thickness measurement result in real time according to the steel pipe temperature measured by the sensor module so as to ensure the accuracy of the measurement result. Meanwhile, the monitoring terminal 10 also has the functions of signal analysis and processing, data fusion, data storage, data review, data visualization and the like. The monitoring terminal 10 is respectively in communication connection with the multi-channel ultrasonic monitoring module 2 and the electric control module 3 through the communication module 5, the multi-channel ultrasonic monitoring module 2 is also respectively connected with the probe group and the electric control module 3, the electric control module 3 is also respectively connected with the cooling module 4, the steel pipe motion stabilizing module 6, the sensor module 7 and the steel pipe follow-up module 8, the electric control module 3 is powered by an external power supply, and the electric control module 3 can receive the measurement data of the sensor module 7 and control the running states of other modules so as to realize automatic and continuous wall thickness measurement; the cooling module 4 is connected with an external compressed air source and a circulating water source, and the cooling module 4 is also connected with the steel pipe follow-up module 8 and the probe group through cooling pipelines respectively;
The multichannel ultrasonic monitoring module 2, the electrical control module 3, the cooling module 4 and the communication module 5 are installed in the control cabinet 1, and the steel pipe follow-up module 8 is internally provided with a probe group; the control cabinet 1, the steel pipe motion stabilizing module 6, the sensor module 7 and the steel pipe follow-up module 8 are integrally installed on a hot rolling production line and positioned behind the tension reducing mill; wherein, steel pipe motion stabilization module 6, sensor module 7 and steel pipe follow-up module 8 are installed in proper order along the steel pipe advancing direction in the outer circumference side of steel pipe 11, and steel pipe motion stabilization module 6 is used for reducing the radial runout of steel pipe 11 to satisfy steel pipe follow-up module 8's requirement. The sensor module 7 is used for measuring the position, speed and temperature of the steel pipe 11, and the probe group arranged on the steel pipe follow-up module 8 is used for measuring the wall thickness of the steel pipe 11.
As shown in fig. 2, the steel tube follow-up module 8 is sleeved on the outer circumferential side surface of the steel tube 11, and the steel tube follow-up module 8 and the steel tube 11 are arranged at intervals.
The probe group comprises at least one probe 9, and the probe 9 is respectively connected with the multi-channel ultrasonic monitoring module 2 and the cooling module 4; the probe group consists of a probe 9, and the probe 9 is arranged on the inner circumferential side surface of the steel tube follow-up module 8; the probe group consists of a plurality of probes 9, the probes 9 are circumferentially installed on the inner circumferential side surface of the steel pipe follow-up module 8 at intervals, and a gap is formed between the probes 9 and the outer circumferential side surface of the steel pipe 11; the steel tube follow-up module 8 adjusts the distance between each probe 9 and the outer circumferential side surface of the steel tube 11 along the self-motion direction 14 of the probe (namely, the position of each probe), namely, the lifting distance of the probe, so that each probe 9 is switched between the probe standby position 12 and the probe working position 13. When the probe 9 is at the probe standby position 12, the probe 9 does not work; when the probe 9 is in the probe operating position 13, the probe 9 is operated. The steel pipe follow-up module 8 can adjust the position of the probe 9 arranged on the steel pipe follow-up module in real time according to the outer diameter of the steel pipe, so that the distance between the probe 9 and the outer surface of the steel pipe is kept constant in the monitoring process. The probe lifting distance is kept constant, so that the direct contact between the probe and the high-temperature surface of the steel pipe is avoided, the requirements on the cooling performance and the mechanical property of the probe are reduced, the risk of probe damage is reduced, and the reduction of the monitoring effect caused by the increase of the lifting distance is avoided.
The probe 9 is an electromagnetic ultrasonic probe. The multi-channel ultrasonic monitoring module 2 is provided with a plurality of monitoring channels, each monitoring channel is provided with an electromagnetic ultrasonic probe, and in specific implementation, the number of the monitoring channels and the number of the probes are 3-12.
Because the probe 9 and the steel pipe follow-up module 8 are arranged near the steel pipe and are susceptible to high temperature, a cooling mechanism is arranged in the steel pipe follow-up module 8 and is connected with the cooling module 4 through a cooling pipeline. A cooling mechanism is arranged in the probe 9 and connected with the cooling module 4 through a cooling pipeline. A plurality of air pressure valves and flow valves are installed inside the cooling module 4, each air pressure valve and each flow valve control corresponding parts respectively, and the parts comprise a steel pipe follow-up module 8 and a probe group connection. The cooling module is connected with an external compressed air source and a circulating water source, provides compressed air and circulating water for the cooling mechanism connected with the cooling module through a cooling pipeline, and adjusts air pressure and water flow through an air pressure valve and a flow valve so as to regulate and control the cooling effect of the cooling mechanism.
The sensor module 7 includes a steel pipe position sensor, a steel pipe speed sensor, and a steel pipe temperature sensor.
The system can automatically and continuously run to complete the on-line automatic monitoring of the wall thickness of the steel pipe.
When the cooling system works, the electric control module 3 firstly controls the cooling module 4 to enter a working state, and after the cooling module 4 works normally, the system enters a standby state. The electric control module 3 judges the position of the steel pipe through a steel pipe position sensor in the sensor module 7. Before the steel pipe reaches the steel pipe follow-up module 8, the multi-channel ultrasonic monitoring module 2 is in a standby state, and the probe 9 on the steel pipe follow-up module 8 is located at a standby position, as shown in fig. 2. When the steel pipe reaches the steel pipe follow-up module 8, the electric control module 3 controls the steel pipe follow-up module 8 to move the probe 9 to the working position, and the lifting distance of the probe is kept unchanged. Meanwhile, the electrical control module 3 controls the multi-channel ultrasonic monitoring module 2 to enter a working state, and wall thickness monitoring is started. At this time, the multi-channel ultrasonic monitoring module 2 transmits an excitation signal to the probe 9 of each channel and receives a monitoring signal, and then transmits monitoring data to the monitoring terminal 10 in real time through the communication module 5. Meanwhile, the electrical control module 3 receives the steel pipe temperature and the traveling speed detected by the sensor module 7, and transmits the steel pipe temperature and the traveling speed to the monitoring terminal 10 through the communication module. The monitoring terminal 10 fuses, analyzes and processes the received steel pipe thickness, steel pipe temperature and steel pipe advancing speed, calculates the steel pipe outer diameter, thickness, inner diameter, roundness and the like through a built-in algorithm, and completes data storage and data visualization for operators to check and analyze. When the steel pipe leaves the steel pipe follow-up module 8, the monitoring is suspended, the electrical control module 3 controls the multi-channel ultrasonic monitoring module 2 to be switched to a standby state, and the electrical control module 3 controls the steel pipe follow-up module 8 to move the probe 9 to a standby position. And the system enters the standby state again to wait for the next steel pipe to be tested.
When the device works, the probe 9 needs to go from the standby position to the working position and then returns to the standby position, so that the safety of monitoring steel pipes with different outer diameters is improved, and the steel pipes are prevented from colliding with the steel pipe follow-up module.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (7)
1. The on-line measuring system for the wall thickness and the high temperature of the hot-rolled steel pipe is characterized by comprising a control cabinet (1), a multi-channel ultrasonic monitoring module (2), an electrical control module (3), a cooling module (4), a communication module (5), a steel pipe motion stabilizing module (6), a sensor module (7), a steel pipe follow-up module (8), a probe group and a monitoring terminal (10);
The monitoring terminal (10) is respectively connected with the multi-channel ultrasonic monitoring module (2) and the electric control module (3) through the communication module (5), the multi-channel ultrasonic monitoring module (2) is also respectively connected with the probe group and the electric control module (3), and the electric control module (3) is also respectively connected with the cooling module (4), the steel pipe motion stabilizing module (6), the sensor module (7) and the steel pipe follow-up module (8); the cooling module (4) is also connected with the steel pipe follow-up module (8) and the probe group respectively;
the multi-channel ultrasonic monitoring module (2), the electrical control module (3), the cooling module (4) and the communication module (5) are installed in the control cabinet (1), and the probe group is installed in the steel pipe follow-up module (8); the control cabinet (1), the steel pipe motion stabilizing module (6), the sensor module (7) and the steel pipe follow-up module (8) are integrally installed on a hot rolling production line; the steel pipe motion stabilization module (6), the sensor module (7) and the steel pipe follow-up module (8) are sequentially installed on the outer circumferential side face of the steel pipe (11) along the steel pipe advancing direction, the steel pipe motion stabilization module (6) is used for reducing radial runout of the steel pipe (11), the sensor module (7) is used for measuring the position, the speed and the temperature of the steel pipe (11), and the probe group installed on the steel pipe follow-up module (8) is used for measuring the wall thickness of the steel pipe (11).
2. The on-line measuring system for the wall thickness and the high temperature of the hot-rolled steel pipe according to claim 1, wherein the steel pipe follow-up module (8) is sleeved on the outer circumferential side surface of the steel pipe (11), and the steel pipe follow-up module (8) and the steel pipe (11) are arranged at intervals.
3. The on-line measuring system for the wall thickness and the high temperature of the hot-rolled steel pipe according to claim 1, wherein the probe group comprises at least one probe (9), and the probe (9) is respectively connected with the multi-channel ultrasonic monitoring module (2) and the cooling module (4); the probe group consists of a probe (9), and the probe (9) is arranged on the inner circumferential side surface of the steel pipe follow-up module (8); the probe group is composed of a plurality of probes (9), the probes (9) are circumferentially installed on the inner circumferential side surface of the steel pipe follow-up module (8) at intervals, and a gap is formed between the probes (9) and the outer circumferential side surface of the steel pipe (11); the steel pipe follow-up module (8) adjusts the distance between each probe (9) and the outer circumferential side of the steel pipe (11) along the self movement direction (14) of the probe, so that each probe (9) is switched between a probe standby position (12) and a probe working position (13).
4. The on-line measuring system for the wall thickness and the high temperature of the hot-rolled steel pipe according to claim 3, wherein the probe (9) is an electromagnetic ultrasonic probe.
5. The on-line measuring system for the wall thickness and the high temperature of the hot-rolled steel pipe according to claim 1, characterized in that a cooling mechanism is arranged in the steel pipe follow-up module (8), and the cooling mechanism is connected with the cooling module (4) through a cooling pipeline.
6. The on-line measuring system for the wall thickness and the high temperature of the hot-rolled steel pipe according to the claim 3 or 4, characterized in that a cooling mechanism is arranged in the probe (9), and the cooling mechanism is connected with the cooling module (4) through a cooling pipeline.
7. The on-line measuring system for the wall thickness and the high temperature of the hot-rolled steel pipe as claimed in claim 1, wherein the sensor module (7) comprises a steel pipe position sensor, a steel pipe speed sensor and a steel pipe temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210140922.7A CN114515764A (en) | 2022-02-16 | 2022-02-16 | Wall thickness and high temperature on-line measuring system of hot-rolled steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210140922.7A CN114515764A (en) | 2022-02-16 | 2022-02-16 | Wall thickness and high temperature on-line measuring system of hot-rolled steel pipe |
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| Publication Number | Publication Date |
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| CN114515764A true CN114515764A (en) | 2022-05-20 |
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| CN202210140922.7A Pending CN114515764A (en) | 2022-02-16 | 2022-02-16 | Wall thickness and high temperature on-line measuring system of hot-rolled steel pipe |
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Citations (7)
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-
2022
- 2022-02-16 CN CN202210140922.7A patent/CN114515764A/en active Pending
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|---|---|---|---|---|
| KR19980066348A (en) * | 1997-01-22 | 1998-10-15 | 서원석 | Manufacturing method of stainless steel thermos |
| CN1259063A (en) * | 1997-06-05 | 2000-07-05 | 曼内斯曼股份公司 | Method and device for detecting the actual state of a hot tube |
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