A method and system for high-speed wire air-cooling drive control that is stable, shock-absorbing, safe and reliable

By optimizing the current control and logical timing design of the air-cooled fan, the vibration and equipment damage caused by direct start of the air-cooled roller fan is solved, and efficient and safe air-cooled transmission control is achieved, which improves production efficiency and finished product quality.

CN115853816BActive Publication Date: 2025-08-01YANGCHUN NEW STEEL CO LTD
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Patent Information

Application Number
CN202310010677.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-01-05
Publication Date
2025-08-01
Estimated Expiration
2043-01-05

AI Technical Summary

Technical Problem

In the prior art, the air-cooled fan of the air-cooled rollers in the rolling mill directly starts, resulting in large vibrations, high loads, easy tripping, and lack of on-site and centralized control, resulting in low production efficiency, frequent equipment damage and high cost.

Method used

Design the air-cooled fan current optimization control module, on-site centralized operation module, on-site operation timing control module, fan valve interlocking linkage module, fan start time control module, intelligent equipment safety protection module and shutdown protection module, and optimize the fan start and shutdown process through logical timing and intelligent control.

Benefits of technology

It realizes smooth control of fan start and shutdown, reduces equipment vibration and tripping, improves production efficiency, reduces equipment accidents and costs, and improves finished product quality.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The present invention discloses a method and system for high-speed wire air-cooling drive control that is stable, shock-absorbing, safe and reliable in the technical field of steel production. The air-cooling fan current optimization and local centralized operation unit realizes the convenient processing of the production process and equipment operation through the innovative design of the control mode; the local operation timing control and fan valve interlock unit realizes the optimal control of the control process through the innovative design of timing and interlock; the fan startup time control and intelligent safety protection unit realizes the precise interval optimal control of the process control through the intelligent innovative design of time; the shutdown timing protection and centralized logic sequence control unit realizes a method and system for high-speed wire air-cooling drive control that is stable, shock-absorbing, safe and reliable through the innovative design of timing logic, and thus can contribute to the improvement of the product quality and production efficiency of double high-speed wires.
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Description

Technical Field

[0001] The present invention relates to the technical field of steel production, and in particular to a method and system for high-speed wire air-cooling drive control that is stable, shock-absorbing, safe and reliable. Background Art

[0002] The air-cooling fan cooling system of the air-cooling roller table of the double high-speed wire in the rolling mill is very important, which is directly related to the cooling quality of the finished coil on the air-cooling roller table, and thus directly affects important quality parameters such as the mechanical properties and yield strength of the finished product. However, in the prior art, the cooling fans under the air-cooling roller table are directly started by motors to achieve drive, and direct start control is performed on the three main power supplies in the rear area of the high-speed wire. Such prior art has great defects and drawbacks. Firstly, during the direct start process, due to large vibrations, the load will be large, which may lead to tripping. Secondly, the prior art does not design local and centralized control, which brings bottlenecks to the convenient control during the production process and severely restricts the improvement of production efficiency. Finally, there is no timing protection system for the motor and fan equipment, which may lead to equipment damage due to unscientific operation, resulting in equipment accidents and wasting equipment costs. Therefore, the prior art cannot be well matched with the lean production and smooth rolling on site, and there are many technical bottlenecks in terms of equipment accidents and equipment cost waste, which severely restricts the performance of the equipment and the improvement of the production operation rate, and thus fundamentally restricts the stable and high-yield production during the production process. Summary of the Invention

[0003] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of this part, the abstract and the title, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] To solve the above technical problems, the object of the present invention is to provide a method for high-speed wire air-cooling drive control that is stable, shock-absorbing, safe and reliable, specifically including the following steps:

[0005] Step S1: Design an optimized control module for the air-cooling fan current. There are 4 air-cooling fans in the air-cooling line, all of which are MCC soft-start controlled, and the fan opening degree is adjusted through an electric actuator;

[0006] Step S2: Design a local and centralized operation module. The operation is divided into "local operation" and "centralized operation". When the fan MCC is ready is displayed on the fan diagnosis screen in the HMI, the fan can be operated;

[0007] Step S3: Design the in-situ operation timing control module. Each fan is equipped with an in-situ operation box beside the machine. The in-situ operation box has a "local / centralized" selection switch, a "start" pushbutton, a "stop" pushbutton, and an "in-situ operation allowed" indicator light. When the local mode is selected, the fan can be started and stopped locally only when the "operation allowed" light is on. During the start-up process, the "start" pushbutton flashes and remains on after start-up is completed.

[0008] Step S4: Design the fan valve interlock linkage module. Through logical timing design, ensure that the fan valve is closed in place before the fan starts.

[0009] Step S5: Design the fan start-up time control module. Through precise quantitative control, the fan valve can be opened 20 seconds after the fan starts.

[0010] Step S6: Design the intelligent device safety protection module. Ensure that no more than 2 fans can be started simultaneously, and the start-up interval between each fan is at least 30 seconds.

[0011] Step S7: Design the shutdown timing protection module. Ensure that the fan cannot be started again within 10 minutes after it stops to prevent the motor from being burned out due to overheating caused by frequent fan start-ups.

[0012] Step S8: Design the centralized operation logic sequence control module. When all fans are selected for "centralized operation", the fans can be started and stopped centrally. On the centralized control panel of the fans, the opening delay time of the fan valve, the start-up interval time of the fans, and the opening degree parameter of the fan valve can be set. The start-up interval time of the fans is generally not less than 20 seconds, and the opening degree of the fan valve is determined by the technological requirements. After setting the above parameters, select the "fan centralized control" selection button, then select the fan to be started, and finally control the start and stop of the fan through the start / stop button. After selecting start, the fans will start one by one in sequence. After all fans have started, a certain fan can be started and stopped through the selection button. "Control mode selection" can select manual or automatic to open the valve.

[0013] Optionally, the air-cooled fan current refers to the actual operating current of the finished coil cooling fan under the five-meter platform of the air-cooled roller table. The air-cooled line refers to the finished coil transportation line of the air-cooled roller table. MCC refers to the air-cooled fan drive control cabinet. Soft start control refers to optimized control through current sections.

[0014] Optionally, the local / centralized operation refers to two operation methods distinguished from the operation in the main power room. Among them, centralized operation refers to the operation performed on the centralized operation console. HMI refers to the human-machine operation and human-machine display interface. The diagnostic screen refers to the comparative diagnosis of various control conditions and status conditions. Operating the fan refers to the standardized operation of the relevant drive components for fan control after confirming that the conditions are met.

[0015] Optionally, the on-site operation timing control refers to a timing control system designed based on the logical sequence and logical conditions of on-site operations. The local area refers to the local operation box corresponding to each air-cooled fan. "Start" refers to the operation of the corresponding fan after condition recognition and condition judgment. "Stop" refers to the operation of the corresponding fan after condition recognition and condition judgment.

[0016] Optionally, the fan valve refers to the connection system between the outlet of the fan and the coiling cooling area. Interlock linkage refers to the conditional connection and logical drive connection designed based on the characteristics and essential attributes of fan actions and valve actions.

[0017] Optionally, the fan startup time control refers to a time node trigger and time interval recording system based on fan startup. 20 seconds after startup is the optimal time parameter obtained based on big data.

[0018] Optionally, the intelligent device safety protection refers to the active protection of the safe operation of the device by designing an intelligent protection system. Such a design is based on various precise protection requirements and precise action timings of the device. The requirement that no more than 2 fans can be started simultaneously is the precise parameter control obtained based on repeated on-site tests.

[0019] Optionally, the shutdown timing protection refers to a process protection system designed based on various risk factors and equipment trend change conditions during the shutdown process. The inability to start again is an output of a protective instruction. Through the introduction of interlock control, the safety of the equipment is ensured.

[0020] Optionally, the centralized operation refers to the control process based on the centralized operation console and the process operators at the centralized operation console. The logical sequence control refers to the logical conditions and sequence conditions designed based on the basic attributes and process characteristics of the centralized operation. The control mode selection refers to the mode switching based on the human-machine interface.

[0021] It also includes a high-speed wire air-cooled drive control system that is stable, vibration-damping, safe and reliable. The high-speed wire air-cooled drive control system that is stable, vibration-damping, safe and reliable includes:

[0022] The air-cooled fan current optimization and local / centralized operation unit, including

[0023] The air-cooled fan current optimization control module, which is used for 4 air-cooled fans in the air-cooled line, all of which are MCC soft-start controlled, and the fan opening degree is adjusted through an electric actuator;

[0024] The local / centralized operation module, and the operation is divided into "local operation" and "centralized operation". The fan can only be operated when the fan MCC is ready is displayed on the fan diagnosis screen in the HMI;

[0025] Local operation timing control and fan valve interlock unit, including

[0026] Local operation timing control module. For each fan, there is a local operation box beside the machine. The local operation box has a "local / centralized" selection switch, a "start" push-button light, a "stop" push-button light, and a "local operation allowed" indicator light. When the local mode is selected, the fan can be started and stopped locally only when the "operation allowed" light is on. During the start-up process, the "start" push-button light flashes, and the push-button light remains on after the start-up is completed;

[0027] Fan valve interlock linkage module. Through logical timing design, it is ensured that the fan valve is closed in place before the fan starts;

[0028] Fan start-up time control and intelligent safety protection unit, including

[0029] Fan start-up time control module. It is used to realize that the fan valve can be opened only after 20 seconds of fan start-up through precise quantitative control;

[0030] Intelligent device safety protection module. It is used to ensure that 2 or more fans cannot be started simultaneously, and the start-up interval between each fan is at least 30 seconds;

[0031] Shutdown timing protection and centralized logic step sequence control unit, including

[0032] Shutdown timing protection module. It ensures that the fan cannot be started again within 10 minutes after it stops, to prevent the fan from overheating and burning out the motor due to frequent start-up;

[0033] Centralized operation logic step sequence control module. When all fans are selected for "centralized operation", the fans can be started and stopped centrally. On the fan centralized control screen, the fan valve opening delay time, fan start-up interval time, and fan valve opening degree parameters can be set. The fan start-up time interval is generally not less than 20 seconds, and the fan valve opening degree is determined by process requirements. After setting the above parameters, select the "fan centralized control" selection button, then select the fan to be started, and finally control the start and stop of the fan through the start / stop button. After selecting start, the fans will start one by one in sequence. After all fans have started, a certain fan can be started and stopped through the selection button. The "control mode selection" can select manual or automatic to open the valve.

[0034] In summary, the present invention includes at least one of the following beneficial effects:

[0035] 1. By designing an optimized control module for the current of the air-cooled fan, it is possible to avoid large loads caused by strong vibrations, which may lead to tripping. Then, a local centralized operation module is designed, which brings great convenience to the convenient control during the production process, thereby improving the production efficiency. A local operation timing control module is designed to avoid equipment damage caused by unscientific operations, thus preventing equipment accidents and saving costs. A fan valve interlock linkage module is designed. Through logical timing design, it is ensured that the fan valve is closed in place before the fan starts. Then, a fan start time control module is designed. Through precise quantitative control, the fan valve can be opened 20 seconds after the fan starts. Next, an intelligent device safety protection module is designed to ensure that no more than 2 fans can be started simultaneously, and the start interval between each fan is at least 30 seconds. Then, a shutdown timing protection module is designed to ensure that the fan cannot be started again within 10 minutes after it stops, preventing the fan from overheating and burning out the motor due to frequent starts. Finally, a centralized operation logic sequence control module is designed. When all fans are selected for centralized operation, the start and stop of the fans can be centrally controlled. On the centralized control screen of the fan, parameters such as the opening delay time of the fan valve, the start interval time of the fan, and the opening degree of the fan valve can be set. The start interval time of the fan is generally not less than 20 seconds, and the opening degree of the fan valve is determined by process requirements. This can help to execute the air-cooling of the coil with high efficiency and high quality, thereby improving the finished product quality and reducing the accident time and the equipment cost per ton of steel.

[0036] 2. The optimized current control and local centralized operation unit of the air-cooled fan realizes the convenient processing of the production process and equipment operation through innovative design of the control method; the local operation timing control and fan valve interlock unit realizes the optimal control of the control process through innovative design of timing and interlock; the fan start time control and intelligent safety protection unit realizes the optimal control of the precise interval of the process control through the intelligent innovative design of time; the shutdown timing protection and centralized logic sequence control unit realizes a method and system for high-speed wire air-cooled drive control that is stable, vibration-damping, safe and reliable through innovative design of the timing logic, thereby helping to improve the product quality and production efficiency of the double high-speed wires. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 It is a flowchart of a method for high-speed wire air-cooled drive control that is stable, vibration-damping, safe and reliable according to the present invention;

[0039] Figure 2 This is the principle block diagram of a stable vibration-damping, safe and reliable high-speed wire air-cooling drive control system according to the present invention. Specific implementation manners

[0040] The following will further elaborate on the present invention in conjunction with the attached Figure 1-2 drawings.

[0041] Embodiment 1

[0042] Referring to Figure 1 , the present invention discloses a stable vibration-damping, safe and reliable high-speed wire air-cooling drive control method, which specifically includes the following steps:

[0043] Step S1: Design an optimized control system for the current of the air-cooling fans. There are 4 air-cooling fans in the air-cooling line, all of which are MCC soft-start controlled, and the opening degree of the fans is adjusted through an electric actuator;

[0044] The current of the air-cooling fan refers to the actual operating current of the finished coil cooling fan under the five-meter platform of the air-cooling roller table. The air-cooling line refers to the finished coil transportation line of the air-cooling roller table. MCC refers to the drive control cabinet of the air-cooling fan. Soft-start control means that through current section optimization control, the current is made stable and the vibration is uniform during the motor startup process, thereby realizing the safe and stable operation of the equipment during the startup process.

[0045] Step S2: Design a local centralized operating system. The operation is divided into "local operation" and "centralized operation". When the fan MCC is ready is displayed on the fan diagnosis screen in the HMI, the fan can be operated;

[0046] Local centralized operation refers to two operation methods different from those in the main switchboard room. Among them, centralized operation refers to the operation carried out on the centralized operation console. HMI refers to the human-machine operation and human-machine display interface. The diagnosis screen refers to the comparative diagnosis of various control conditions and status conditions. Operating the fan means performing standardized operations on the relevant drive components for fan control after confirming that the conditions are met.

[0047] Step S3: Design a local operation timing control system. Each fan is equipped with a local operation box beside the machine. The local operation box has a "local / centralized" selection switch, a "start" pushbutton, a "stop" pushbutton, and a "local operation allowed" indicator light. When local is selected, the fan can be started and stopped locally only when the "operation allowed" light is on. During the startup process, the "start" pushbutton flashes, and the pushbutton remains on after startup;

[0048] In-situ operation timing control refers to a timing control system designed based on the logical sequence and logical conditions of in-situ operations. Beside the machine refers to the in-situ operation box corresponding to each corresponding air-cooled fan. "Start" refers to the operation of the corresponding fan after condition recognition and condition judgment are met. "Stop" refers to the operation of the corresponding fan after condition recognition and condition judgment are met.

[0049] Step S4: Design a fan valve interlock linkage system. Through logical timing design, ensure that the fan valve is fully closed before the fan starts.

[0050] The fan valve refers to the connection system between the outlet of the fan and the coiling cooling area. Through such innovative design, the high efficiency of air-cooled transmission can be achieved. Interlock linkage refers to the condition connection and logical drive connection designed based on the characteristics and essential attributes of the fan action and the valve action, so as to achieve efficient cooling and smooth transportation of the coil under various working conditions and various rolling loads.

[0051] Step S5: Design a fan start-up time control system. Through precise quantification control, the fan valve can be opened only after 20 seconds of the fan starting.

[0052] Fan start-up time control refers to the time node trigger and time interval recording system based on the fan start-up. After 20 seconds of starting is the optimal time parameter obtained based on big data. The acquisition and optimization of such time parameters realize the essential protection of on-site equipment and the optimal design based on different equipment attributes combined with different equipment surrounding environments.

[0053] Step S6: Design an intelligent device safety protection system to ensure that no more than 2 fans can be started simultaneously, and the start interval between each fan is at least 30 seconds.

[0054] Intelligent device safety protection refers to the active protection of the safe operation of the equipment by designing an intelligent protection system. Such design is carried out based on various precise protection requirements and various precise action timings of the equipment. The requirement that no more than 2 fans can be started simultaneously is the precise parameter control obtained based on repeated on-site tests and combined with systematic design, thus realizing the full-process and full-link protection of equipment safety.

[0055] Step S7: Design a shutdown timing protection system to ensure that the fan cannot be started again within 10 minutes after it stops, so as to prevent the fan from overheating and burning out the motor due to frequent starting.

[0056] The shutdown timing protection refers to a process protection system designed based on various risk factors during the shutdown process and the equipment trend change conditions. Through such innovative design, it is possible to achieve all-round protection for the fan body and related auxiliary components in the rapid shutdown and related links with rapid changes. The inability to restart is a protective instruction output, and through the introduction of interlock control, the absolute safety of the equipment can be ensured.

[0057] Step S8: Design a centralized operation logic sequence control system. Only when all fans are selected for centralized operation can the fans be started and stopped centrally. On the centralized control screen of the fan, parameters such as the fan valve opening delay time, the fan start interval time, and the fan valve opening degree can be set. The fan start time interval is generally not less than 20 seconds, and the fan valve opening degree is determined by the process requirements. After setting the above parameters, select the "Fan Centralized Control" selection button, then select the fan to be started, and finally control the start and stop of the fan through the start / stop button. After selecting start, the fans will start one by one in sequence. After all fans have started, a certain fan can be started and stopped through the selection button. "Control Mode Selection" can select manual or automatic to open the valve.

[0058] Centralized operation refers to the control process based on the centralized operation console and the process operators at the centralized operation console. Logic sequence control refers to the logical conditions and sequence conditions designed based on the basic attributes and process characteristics of centralized operation. Through such logical integration and time sequence integration, the optimal control and clear control of centralized operation can be achieved. Control mode selection refers to the mode switching based on the human-machine interface.

[0059] Embodiment 2

[0060] Refer to Figure 2 , based on the same concept as in the above Embodiment 1, it also includes a system for a high-speed wire air-cooled transmission control method that is stable, shock-absorbing, safe and reliable.

[0061] It also includes a high-speed wire air-cooled transmission control system that is stable, shock-absorbing, safe and reliable. The high-speed wire air-cooled transmission control system that is stable, shock-absorbing, safe and reliable includes:

[0062] The air-cooled fan current optimization and local centralized operation unit has functions such as air-cooled fan current optimization data identification, air-cooled fan current optimization process sub-region control, air-cooled fan current optimization dynamic adjustment, local centralized operation logic condition design, local centralized operation drive component control, and local centralized operation interlock connection. Through the innovative design of the control method, the air-cooled fan current optimization and local centralized operation unit realizes the convenient processing of the production process and equipment operation; specifically includes

[0063] The air-cooled fan current optimization control module is used for the air-cooled line with a total of 4 air-cooled fans, all of which are MCC soft-start controlled, and the fan opening degree is adjusted through an electric actuator;

[0064] The local centralized operation module has operations divided into "local operation" and "centralized operation". When the fan MCC is ready as shown in the fan diagnosis screen of the HMI, the fan can be operated;

[0065] The local operation timing control and fan valve interlock unit has functions such as local operation timing control input signal control, local operation timing control output signal control, local operation timing control instruction execution control, fan valve interlock logic symmetric connection, fan valve interlock signal transmission, and fan valve interlock timing connection. Through innovative design of timing and interlock, the local operation timing control and fan valve interlock unit realizes the optimal control of the control process; specifically including

[0066] The local operation timing control module is used for each fan to be equipped with a local operation box beside the machine. The local operation box has a "local / centralized" selection switch, a "start" pushbutton, a "stop" pushbutton, and a "local operation allowed" indicator light. When local is selected, the fan can be started and stopped locally only when the "operation allowed" light is on. During the start-up process, the "start" pushbutton flashes and remains on after start-up;

[0067] The fan valve interlock linkage module, through logical timing design, ensures that the fan valve is closed in place before the fan starts;

[0068] The fan start time control and intelligent safety protection unit has functions such as optimized fan start time control interval, cumulative control of fan start time control time, drive control of fan start time control time, identification of intelligent safety protection active devices, rapid response of intelligent safety protection, and intelligent switching of intelligent safety protection. Through the intelligent innovation design of time, the fan start time control and intelligent safety protection unit realizes the precise interval optimal control of the process control; specifically including

[0069] The fan start time control module is used to open the fan valve 20 seconds after the fan starts through precisely quantified control;

[0070] The intelligent device safety protection module is used to ensure that 2 or more fans cannot be started simultaneously, and the start interval between each fan is at least 30 seconds;

[0071] The shutdown timing protection and centralized logic step sequence control unit has functions such as shutdown timing protection action trigger acquisition, optimization control of key links in shutdown timing protection, shutdown timing protection logic output, centralized logic step sequence control mode switching, centralized logic step sequence control action control, and centralized logic step sequence control signal feedback. Through the innovative design of timing logic, the shutdown timing protection and centralized logic step sequence control unit realizes a method and system for high-speed wire air-cooled drive control that is stable, shock-absorbing, safe and reliable, and can thus contribute to the improvement of the product quality and production efficiency of double high-speed wires; specifically including

[0072] The shutdown timing protection module ensures that the fan cannot be started again within 10 minutes after it stops, to prevent the fan from overheating and burning out the motor due to frequent starting;

[0073] The centralized operation logic step sequence control module is used to enable centralized operation of the fan start and stop only when all fans are selected for "centralized operation". On the fan centralized control screen, the fan valve opening delay time, fan start interval time, and fan valve opening parameter can be set. The fan start time interval is generally not less than 20 seconds, and the fan valve opening is determined by process requirements. After setting the above parameters, select the "fan centralized control" selection button, then select the fan to be started, and finally control the start and stop of the fan through the start / stop button. After selecting start, the fans will start one by one in sequence. After all fans have started, a certain fan can be started and stopped through the selection button. "Control mode selection" can select manual or automatic to open the valve.

[0074] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A high-speed wire air-cooling drive control method that is stable, shock-absorbing, safe and reliable, characterized in that: Specifically, it includes the following steps: Step S1: Design an optimized control module for the current of the air-cooled fan. There are 4 air-cooled fans in the air-cooled line, all of which are MCC soft-start controlled, and the opening degree of the fan is adjusted through an electric actuator; the air-cooled fan current refers to the actual operating current of the finished coil cooling fan under the five-meter platform of the air-cooled roller table. The air-cooled line refers to the finished coil transportation line of the air-cooled roller table, and MCC refers to the drive control cabinet of the air-cooled fan. Soft-start control means optimizing control through current sections; Step S2: Design a local centralized operation module. The operation is divided into "local operation" and "centralized operation". The fan can only be operated when the fan MCC is ready as shown in the fan diagnosis screen of the HMI; Step S3: Design a local operation timing control module. Each fan is equipped with a local operation box beside the machine. The local operation box has a "local / centralized" selection switch, a "start" pushbutton, a "stop" pushbutton, and a "local operation allowed" indicator light. When local is selected, the fan can be started and stopped locally only when the "operation allowed" light is on. During the start-up process, the "start" pushbutton flashes, and the pushbutton remains on after start-up; Step S4: Design a fan valve interlock linkage module. Through logical timing design, ensure that the fan valve is closed in place before the fan starts; Step S5: Design a fan start-up time control module. Through precise quantitative control, the fan valve can be opened 20 seconds after the fan starts; Step S6: Design an intelligent device safety protection module. Ensure that 2 or more fans cannot be started simultaneously, and the start-up interval between each fan is at least 30 seconds; Step S7: Design a shutdown timing protection module. Ensure that the fan cannot be started again within 10 minutes after the fan stops to prevent the motor from being burned out due to overheating caused by frequent start-up of the fan; Step S8: Design a centralized operation logic step sequence control module. The centralized operation refers to the control process based on the centralized operation console and the process operators at the centralized operation console. The logic step sequence control refers to the logical conditions and step conditions designed based on the basic attributes and process characteristics of the centralized operation. The control mode selection refers to the mode switching based on the human-machine interface; When all fans are selected for "centralized operation", the fan can be started and stopped centrally. On the centralized control screen of the fan, the opening delay time of the fan valve, the start-up interval time of the fan, and the opening degree parameter of the fan valve can be set. The start-up time interval of the fan is not less than 20 seconds, and the opening degree of the fan valve is determined by the process requirements. After setting the above parameters, select the "fan centralized control" selection button, then select the fan to be started, and finally control the start and stop of the fan through the start / stop button. After selecting start, the fans will start one by one in sequence. After all fans have started, a certain fan can be started and stopped through the selection button. The "control mode selection" can select manual or automatic to open the valve.

2. A high-speed wire air-cooling transmission control method that is stable, shock-absorbing, safe and reliable according to claim 1, characterized in that: The on-site centralized operation refers to two operation modes differentiated from the main power room operation. Among them, the centralized operation refers to the operation carried out on the centralized operation console. HMI refers to the human-machine operation and human-machine display interface. The diagnostic screen refers to the comparative diagnosis of various control conditions and status conditions. Operating the fan means performing a standardized operation on the relevant drive components for fan control after confirming that the conditions are met.

3. A stable vibration damping, safe and reliable high-speed wire air-cooled transmission control method according to claim 1, characterized in that: The on-site operation timing control refers to the timing control system designed based on the logical sequence and logical conditions of the on-site operation. Beside the machine refers to the on-site operation box corresponding to each corresponding air-cooled fan. "Start" means operating the corresponding fan after condition recognition and condition judgment are met. "Stop" means operating the corresponding fan after condition recognition and condition judgment are met.

4. A high-speed wire air-cooled transmission control method that is stable, shock-absorbing, safe and reliable according to claim 1, characterized in that: The fan valve refers to the connection system between the outlet of the fan and the coil cooling area. Interlock linkage refers to the conditional connection and logical drive connection designed based on the characteristics and essential attributes of the fan action and valve action.

5. A high-speed wire air-cooling drive control method that is stable, shock-absorbing, safe and reliable according to claim 1, characterized in that: The fan start time control refers to the time node trigger and time interval recording system based on the fan start. 20 seconds after starting is the optimal time parameter obtained based on big data.

6. A high-speed wire air-cooled drive control method that is stable, shock-absorbing, safe and reliable according to claim 1, characterized in that: The intelligent device safety protection refers to actively protecting the safe operation of the device by designing an intelligent protection system. Such a design is carried out based on various precise protection requirements and various precise action timings of the device. The requirement that no more than 2 fans can be started simultaneously is the precise parameter control obtained based on repeated on-site tests.

7. A high-line air-cooled drive control method that is stable, shock-absorbing, safe and reliable according to claim 1, characterized in that: The shutdown timing protection refers to the process protection system designed based on various risk factors and device trend change conditions during the shutdown process. The instruction that it cannot be started again is an output of protective instructions. Through the introduction of interlock control, the safety of the device is ensured.

8. A high-speed wire air-cooling drive control method that is stable, shock-absorbing, safe and reliable according to any one of claims 1-7, characterized in that: It also includes a high-speed wire air-cooled drive control system that is stable, shock-absorbing, safe and reliable. The high-speed wire air-cooled drive control system that is stable, shock-absorbing, safe and reliable includes: The air-cooled fan current optimization and on-site centralized operation unit, including The air-cooled fan current optimization control module, which is used for all 4 air-cooled fans in the air-cooled line, all of which are MCC soft start controls, and the opening degree of the fan is adjusted through an electric actuator; The on-site centralized operation module. The operation is divided into "on-site operation" and "centralized operation". Only when the fan MCC is ready is displayed on the fan diagnostic screen in the HMI can the fan be operated; The on-site operation timing control and fan valve interlock unit, including The on-site operation timing control module, which is used for each fan to be equipped with an on-site operation box beside the machine. The on-site operation box has a "local / centralized" selection switch, a "start" push button, a "stop" push button, and an "on-site operation allowed" indicator light. When local is selected, the fan can be started and stopped locally only when the "operation allowed" indicator light is on. During the start-up process, the "start" push button flashes, and the push button remains on after start-up is completed; The fan valve interlock linkage module, through logical timing design, ensures that the fan valve is closed in place before the fan starts; The fan start time control and intelligent safety protection unit, including The fan startup time control module is used to realize that the fan valve can be opened only after 20 seconds of fan startup through precise and quantified control; The intelligent device safety protection module is used to ensure that no more than 2 fans can be started simultaneously, and the startup interval between each fan is at least 30 seconds; The shutdown timing protection and centralized logic sequence control unit includes The shutdown timing protection module ensures that the fan cannot be started again within 10 minutes after it stops, to prevent the motor from being burned out due to overheating caused by frequent startup of the fan; The centralized operation logic sequence control module is used to enable centralized control of the fan startup and shutdown only when all fans are selected for "centralized operation". On the fan centralized control screen, parameters such as the fan valve opening delay time, fan startup interval time, and fan valve opening degree can be set. The fan startup time interval is not less than 20 seconds, and the fan valve opening degree is determined by the process requirements. After setting the above parameters, select the "fan centralized control" selection button, then select the fan to be started, and finally control the startup and shutdown of the fan through the start / stop button. After selecting startup, the fans will start one by one in sequence. After all fans have started, a certain fan can be started and stopped through the selection button. "Control mode selection" can be used to select manual or automatic to open the valve.

Citation Information

Patent Citations

  • Integrated fan processing system for vacuum cleaning

    CN111706533A

  • Large fan's interlocking control system

    CN208752431U