Pickling control system capable of improving safety performance

Abstract

The invention relates to the technical field of pickling control systems, in particular to a pickling control system capable of improving safety performance, which comprises a workpiece information determination module, a pickling control module and a pickling control module, the historical workpiece information module is used for generating a recommended process parameter range, and the recommended process parameter range comprises the predicted production amount of hydrogen in unit time; the acid liquor control module is used for generating a recommended process parameter range based on the historical workpiece information module and adjusting parameters of acid liquor in the pickling tank; the hydrogen content detection module is used for collecting the hydrogen content in the workpiece pickling process and generating a judgment result whether the hydrogen content exceeds the standard or not according to the actual hydrogen generation amount collected in unit time; and a ventilation control module. Through mutual cooperation of all the modules, the problem that an existing pickling control system cannot accurately control the hydrogen generation amount in the pickling process, and consequently potential safety hazards are large is solved.

Description

Technical Field

[0001] The invention relates to the technical field of pickling control systems, and in particular to a pickling control system with improved safety performance. Background Art

[0002] The method of using acid solution to remove oxide scale and rust on the surface of steel is called pickling, which is a method of cleaning the metal surface.

[0003] During the pickling process, the acid reacts with the oxides on the surface of the steel to produce hydrogen. In the prior art, the pickling control system simply uses ventilation to control the hydrogen content in the workshop. It cannot accurately adjust the hydrogen content in the workshop according to different workpieces, different acid solutions and other conditions, which will cause hydrogen to accumulate in the workshop and easily cause safety accidents.

[0004] Therefore, the present invention provides a pickling control system with improved safety performance to solve the above problems. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a pickling control system with improved safety performance to solve the problem that the hydrogen content in the workshop cannot be accurately controlled during the pickling process, resulting in safety hazards.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a pickling control system with improved safety performance, comprising: a workpiece information determination module, used to determine the process parameters of the workpiece to be pickled; a historical workpiece information module, which stores historical pickling records of workpieces of different specifications, and generates a recommended process parameter range based on the process parameters of the workpiece to be pickled determined by the workpiece information determination module, wherein the recommended process parameter range includes the expected amount of hydrogen produced per unit time; an acid liquid control module, which generates the recommended process parameter range based on the historical workpiece information module and adjusts the parameters of the acid liquid in the pickling tank; a hydrogen content detection module, which is used to collect the hydrogen content during the pickling process of the workpiece, and the collected hydrogen content range includes at least the hydrogen content in the pickling tank, the hydrogen content in the air above the pickling tank, and the hydrogen content in the ventilation duct , and generates a judgment result of whether the hydrogen content exceeds the standard according to the actual amount of hydrogen generated per unit time; the ventilation control module adjusts the hydrogen content in the pickling process based on the estimated amount of hydrogen generated per unit time generated by the historical artifact information module and the hydrogen content collected by the hydrogen content detection module, and the adjustment of the hydrogen content in the pickling process includes the following steps: Step 1: Obtain the estimated amount of hydrogen generated per unit time generated by the historical artifact information module, and generate a first-level ventilation mode; Step 2: Obtain the judgment result generated by the hydrogen content detection module, and generate a second-level ventilation mode, a third-level ventilation mode, ..., an N-1-level ventilation mode or an N-level ventilation mode according to the actual amount of hydrogen generated per unit time; Step 3: Repeat step 2 until the hydrogen content in the pickling process is controlled within a safe threshold.

[0007] A further improvement of the present application is that the workpiece information determination module includes: a workpiece information input module, used to input the specifications of the workpiece to be pickled, the specifications of the workpiece to be pickled include the material of the workpiece, the size of the workpiece, the original surface condition of the workpiece and the surface requirements after the workpiece is processed; a workpiece information output module, used to output the process parameters of the workpiece to be pickled, the process parameters of the workpiece to be pickled include the moving speed of the workpiece and the maximum allowable corrosion rate of the workpiece.

[0008] A further improvement of the present application is that the historical workpiece information module includes: a historical workpiece data storage module, which is used to store historical pickling records of workpieces of different specifications, wherein the historical pickling records include the initial concentration of acid solution, pickling temperature, pickling time and historical hydrogen production per unit time corresponding to workpieces of different specifications; a historical data analysis module, which establishes a prediction model between the initial concentration of acid solution, pickling temperature, pickling time and corresponding hydrogen production corresponding to the workpiece based on the historical pickling records stored in the historical workpiece data storage module, and generates an estimated production of hydrogen per unit time; the expression for generating the estimated production of hydrogen per unit time is as follows: (1), In expression (1), It indicates the expected amount of hydrogen produced per unit time. represents the initial concentration of the acid solution, is the gas constant, Indicates the pickling temperature, represents the pre-exponential factor, represents the activation energy, Indicates the pickling time. The exponential term representing the activation energy at the pickling temperature, is the reaction rate constant, An exponential function that represents the change in reaction rate over time.

[0009] A further improvement of the present application is that the acid control module includes: an acid preparation module, which adjusts the initial concentration of the acid according to the estimated amount of hydrogen generated per unit time generated by the historical workpiece information module and the process parameters of the workpiece to be pickled output by the workpiece information determination module; an acid temperature control module, which heats or cools the acid in the pickling tank based on the pickling temperature generated by the historical workpiece information module and the process parameters of the workpiece to be pickled output by the workpiece information determination module to ensure that the temperature during the pickling process is constant within the set pickling temperature range; an acid circulation module, which circulates the acid in the pickling tank through a pump and a pipeline to ensure that the acid is evenly distributed in the pickling tank and prevents the precipitate in the acid from accumulating on the workpiece surface; an acid replenishment module, which monitors the concentration and volume of the acid in the pickling tank in real time, and replenishes new acid into the pickling tank when the acid concentration drops or the volume decreases to below a set threshold.

[0010] A further improvement of the present application is that the hydrogen content detection module comprises: a hydrogen content collection module, which is connected to a plurality of hydrogen content collection units, and the plurality of hydrogen content collection units are respectively used to obtain the hydrogen content in the pickling tank, in the air above the pickling tank and in the ventilation duct within a unit time, wherein the hydrogen content collection units in the pickling tank are located on the same horizontal plane, the hydrogen content collection units in the air above the pickling tank are distributed from bottom to top between the pickling tank and the ventilation duct, and the hydrogen content collection units in the ventilation duct are distributed from bottom to top in the ventilation duct; a hydrogen content data processing module, which is used to receive the hydrogen content within a unit time transmitted by the plurality of hydrogen content collection units, number the original data and perform calculation processing, wherein the hydrogen content collected by the hydrogen content collection units in the pickling tank are sequentially recorded as a1, a2, a3, ..., a n-1 ,a n (n≥2), the hydrogen content collected by each hydrogen content collection unit in the air above the pickling tank is recorded as b1, b2, b3, ..., b m-1 ,b m(m≥2), the hydrogen content collected by each hydrogen content collection unit in the ventilation duct is recorded as c1, c2, c3, ..., c k-1 ,c k (k≥2), then, The actual amount of hydrogen produced per unit time is: (2); The average value of hydrogen content in the air above the pickling tank per unit time is: (3); The average value of hydrogen content in the ventilation duct per unit time is: (4); The hydrogen content analysis module generates a determination result of whether the hydrogen content exceeds the standard based on the data generated by the hydrogen content data processing module and the recommended process parameter range generated by the historical workpiece information module.

[0011] A further improvement of the present application is that the hydrogen content analysis module generates a determination result of whether the hydrogen content exceeds the standard, including: If satisfied ≥ , ≥0.6* or ≥0.2* If any two of the following conditions are met, it is determined that the hydrogen content exceeds the standard.

[0012] A further improvement of the present application is that the hydrogen content analysis module generates a determination result of whether the hydrogen content exceeds the standard, and further includes: If b1, b2, b3, …, b m-1 ,b m Any value in (m≥2) is greater than or equal to 1.1* Or satisfy c1,c2,c3,…,c k-1 ,c k Any value in (k≥2) is greater than or equal to 1.1* , it is judged that the hydrogen content exceeds the standard.

[0013] A further improvement of the present application is that the ventilation control module includes: a ventilation equipment control module, which controls the ventilation equipment to execute a first-level ventilation mode according to the estimated amount of hydrogen produced per unit time generated by the historical data analysis module, and controls the ventilation equipment to execute a second-level ventilation mode, a third-level ventilation mode, ..., an N-1-level ventilation mode or an N-level ventilation mode according to the determination result of the hydrogen content analysis module, wherein the wind force provided by the second-level ventilation mode, the third-level ventilation mode, ..., the N-1-level ventilation mode or the N-level ventilation mode is greater than the wind force provided by the first-level ventilation mode, and in the second-level ventilation mode, the third-level ventilation mode, ..., the N-1-level ventilation mode and the N-level ventilation mode, the wind force provided increases with the level of the ventilation mode; a ventilation equipment status monitoring module, which monitors the operating status of the ventilation equipment in real time, including the on / off status, speed / air volume and other information of the ventilation equipment, and issues an alarm message when an abnormal condition occurs in the ventilation equipment; an auxiliary ventilation module, which starts when the ventilation equipment cannot meet the demand for quickly reducing the hydrogen content; A further improvement of the present application is that the steps of the ventilation equipment control module controlling the ventilation equipment to execute the secondary ventilation mode, the tertiary ventilation mode, ..., the N-1 level ventilation mode or the N level ventilation mode are: Step 4: Settings / The ratio is K, and multiple ratios K1, K2, K3, ..., K are obtained in a continuous time. N-1 ,K N (N≥1), the conditions for the ventilation equipment to execute different ventilation modes are: if the difference between any ratio and the ratio of its previous digit is a negative number, then a ventilation mode with a ventilation mode level one level lower than the current ventilation mode level is executed; if the difference between any ratio and the ratio of its previous digit is a positive number, then a ventilation mode with a ventilation mode level one level higher than the current ventilation mode level is executed.

[0014] The beneficial effects of the present invention are: The present invention generates an estimated amount of hydrogen generated per unit time through a historical workpiece information module, controls the upcoming process parameters of a new workpiece within a controllable range according to the information of the historical workpiece, performs initial control on the amount of hydrogen generated, collects the actual amount of hydrogen generated per unit time through a hydrogen content detection module, generates a determination result of whether the hydrogen content exceeds the standard, further controls the amount of hydrogen generated, and finally, adjusts the proportion of hydrogen in the pickling process through a ventilation control module, further controls the hydrogen content in the workshop, and achieves the purpose of accurately controlling the hydrogen content. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a pickling control system for improving safety performance of the present invention; Figure 2is a schematic structural diagram of a historical artifact information module in one embodiment of the present invention; Figure 3 The figure is a schematic structural diagram of a hydrogen content detection module in one embodiment of the present invention. DETAILED DESCRIPTION

[0016] The following will refer to Figures 1 to 3 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0017] refer to Figure 1 The present invention provides a pickling control system with improved safety performance, comprising: A workpiece information determination module is used to determine the process parameters of the workpiece to be pickled; A historical workpiece information module stores historical pickling records of workpieces of different specifications, and generates a recommended process parameter range based on the process parameters of the workpiece to be pickled determined by the workpiece information determination module, wherein the recommended process parameter range includes an estimated amount of hydrogen generated per unit time; The acid control module generates a recommended process parameter range based on the historical workpiece information module and adjusts the parameters of the acid in the pickling tank; The hydrogen content detection module is used to collect the hydrogen content during the pickling process of the workpiece. The hydrogen content range collected includes at least the hydrogen content in the pickling tank, the hydrogen content in the air above the pickling tank, and the hydrogen content in the ventilation duct, and generates a judgment result of whether the hydrogen content exceeds the standard based on the actual amount of hydrogen generated collected per unit time; The ventilation control module adjusts the hydrogen content in the pickling process based on the estimated amount of hydrogen generated per unit time generated by the historical workpiece information module and the hydrogen content collected by the hydrogen content detection module. The adjustment of the hydrogen content in the pickling process includes the following steps: Step 1: Obtain the estimated amount of hydrogen produced per unit time generated by the historical workpiece information module and generate a first-level ventilation mode; Step 2: Obtain the determination result generated by the hydrogen content detection module, and generate a secondary ventilation mode, a tertiary ventilation mode, ..., an N-1 ventilation mode or an N ventilation mode according to the actual amount of hydrogen generated collected per unit time; Step 3: Repeat step 2 until the hydrogen content during the pickling process is controlled within the safety threshold.

[0018] In this embodiment, preferably, the workpiece information determination module includes: A workpiece information input module is used to input the specifications of the workpiece to be pickled, wherein the specifications of the workpiece to be pickled include the material of the workpiece, the size of the workpiece, the original surface condition of the workpiece, and the surface requirements of the workpiece after treatment; The workpiece information output module is used to output the process parameters of the workpiece to be pickled, wherein the process parameters of the workpiece to be pickled include the moving speed of the workpiece and the maximum allowable corrosion rate of the workpiece.

[0019] The beneficial effects of the above technical solution are: through the workpiece information input module inputting the workpiece material, workpiece size, workpiece surface original condition and workpiece surface requirements after processing and the workpiece movement speed and the maximum allowable corrosion rate of the workpiece output by the workpiece information output module, the process parameters of the workpiece to be processed are controlled within a controllable range, so as to make preliminary control for controlling the amount of hydrogen generated; through the historical workpiece information module generating the estimated amount of hydrogen generated per unit time, the staff can predict and control the amount of hydrogen generated in advance, and then take corresponding safety measures. In addition, the hydrogen content data collected in real time by the hydrogen content detection module provides accurate feedback for the ventilation control module, ensuring that the hydrogen content in the pickling process can be effectively controlled.

[0020] refer to Figure 2 Based on Example 1, the historical artifact information module includes: A historical workpiece data storage module, used to store historical pickling records of workpieces of different specifications, wherein the historical pickling records include initial concentration of acid solution, pickling temperature, pickling time and historical amount of hydrogen generated per unit time corresponding to workpieces of different specifications; The historical data analysis module establishes a prediction model between the initial concentration of the acid solution, the pickling temperature, the pickling time and the corresponding hydrogen production amount corresponding to the workpiece based on the historical pickling records stored in the historical workpiece data storage module, and generates the estimated production amount of hydrogen per unit time; The expression for the expected amount of hydrogen produced per unit time is as follows: (1), In expression (1), It indicates the expected amount of hydrogen produced per unit time. represents the initial concentration of the acid solution, is the gas constant, Indicates the pickling temperature, represents the pre-exponential factor, represents the activation energy, Indicates the pickling time. The exponential term representing the activation energy at the pickling temperature, is the reaction rate constant, An exponential function that represents the change in reaction rate over time.

[0021] During the pickling process, the main factors affecting the amount of hydrogen produced are the initial concentration of the acid solution, the pickling temperature, and the pickling time. The historical pickling records of workpieces of different specifications stored in the historical workpiece data storage module are used to give recommended values ​​for the above factors. Based on the recommended values ​​and the prediction model, the estimated amount of hydrogen produced per unit time is calculated, which further provides a basis for controlling the hydrogen content in the pickling process.

[0022] In this embodiment, preferably, the acid liquid control module includes: The acid solution preparation module adjusts the initial concentration of the acid solution according to the estimated amount of hydrogen produced per unit time generated by the historical workpiece information module and the process parameters of the workpiece to be pickled output by the workpiece information determination module; The acid solution temperature control module heats or cools the acid solution in the pickling tank based on the pickling temperature generated by the historical workpiece information module and the process parameters of the workpiece to be pickled output by the workpiece information determination module, so as to ensure that the temperature during the pickling process is constant within the set pickling temperature range; The acid circulation module circulates the acid in the pickling tank through pumps and pipes to ensure that the acid is evenly distributed in the pickling tank and prevent the sediment in the acid from accumulating on the surface of the workpiece; The acid replenishment module monitors the concentration and volume of the acid in the pickling tank in real time. When the acid concentration drops or the volume decreases below the set threshold, new acid is added to the pickling tank.

[0023] refer to Figure 3 Based on Example 2, the hydrogen content detection module includes: A hydrogen content collection module is connected to a plurality of hydrogen content collection units, which are respectively used to obtain the hydrogen content in the pickling tank, in the air above the pickling tank, and in the ventilation duct within a unit time, wherein the hydrogen content collection units in the pickling tank are located on the same horizontal plane, the hydrogen content collection units in the air above the pickling tank are distributed from bottom to top between the pickling tank and the ventilation duct, and the hydrogen content collection units in the ventilation duct are distributed from bottom to top in the ventilation duct; The hydrogen content data processing module is used to receive the hydrogen content per unit time transmitted by multiple hydrogen content collection units, number the original data and perform calculation processing. The hydrogen content collected by each hydrogen content collection unit in the pickling tank is recorded as a1, a2, a3, ..., a n-1 ,a n (n≥2), the hydrogen content collected by each hydrogen content collection unit in the air above the pickling tank is recorded as b1, b2, b3, ..., b m-1 ,b m (m≥2), the hydrogen content collected by each hydrogen content collection unit in the ventilation duct is recorded as c1, c2, c3, ..., ck-1 ,c k (k≥2), then, The actual amount of hydrogen produced per unit time is: (2); The average value of hydrogen content in the air above the pickling tank per unit time is: (3); The average value of hydrogen content in the ventilation duct per unit time is: (4); The hydrogen content analysis module generates a determination result of whether the hydrogen content exceeds the standard based on the data generated by the hydrogen content data processing module and the recommended process parameter range generated by the historical workpiece information module.

[0024] In this embodiment, preferably, the hydrogen content analysis module generates a determination result of whether the hydrogen content exceeds the standard, including: If satisfied ≥ , ≥0.6* or ≥0.2* If any two of the following conditions are met, it is determined that the hydrogen content exceeds the standard.

[0025] In this embodiment, preferably, the hydrogen content analysis module generates a determination result of whether the hydrogen content exceeds the standard, and further includes: If b1, b2, b3, …, b m-1 ,b m Any value in (m≥2) is greater than or equal to 1.1* Or satisfy c1,c2,c3,…,c k-1 ,c k Any value in (k≥2) is greater than or equal to 1.1* , it is judged that the hydrogen content exceeds the standard.

[0026] It should be noted that, in the above scheme, since the hydrogen content collection units in the pickling tank are located on the same horizontal plane, the actual amount of hydrogen produced per unit time is recorded as the average value of the values ​​collected by the hydrogen content collection units, and the hydrogen content collection units in the air above the pickling tank are distributed from bottom to top between the pickling tank and the ventilation duct, and the hydrogen content collection units in the ventilation duct are distributed from bottom to top in the ventilation duct. When the ventilation system is operating normally, the hydrogen content values ​​per unit time collected by the hydrogen content collection units in the air above the pickling tank and in the ventilation duct become smaller as the distance from the pickling tank increases. Based on this principle, a judgment condition for whether the hydrogen content exceeds the standard is formed.

[0027] Based on Example 3, the ventilation control module includes: The ventilation equipment control module controls the ventilation equipment to execute the first-level ventilation mode according to the estimated amount of hydrogen generated per unit time generated by the historical data analysis module, and controls the ventilation equipment to execute the second-level ventilation mode, the third-level ventilation mode, ..., the N-1-level ventilation mode or the N-level ventilation mode according to the determination result of the hydrogen content analysis module, wherein the wind force provided by the second-level ventilation mode, the third-level ventilation mode, ..., the N-1-level ventilation mode or the N-level ventilation mode is greater than the wind force provided by the first-level ventilation mode, and in the second-level ventilation mode, the third-level ventilation mode, ..., the N-1-level ventilation mode and the N-level ventilation mode, the wind force provided increases with the level of the ventilation mode; The ventilation equipment status monitoring module monitors the operating status of the ventilation equipment in real time, including the opening / closing status, speed / air volume and other information of the ventilation equipment, and issues an alarm message when the ventilation equipment has an abnormal condition; Auxiliary ventilation module, when the ventilation equipment cannot meet the demand of quickly reducing the hydrogen content, the auxiliary ventilation module will start; In this embodiment, preferably, the steps of the ventilation equipment control module controlling the ventilation equipment to execute the secondary ventilation mode, the tertiary ventilation mode, ..., the N-1 level ventilation mode or the N level ventilation mode are: Step 4: Settings / The ratio is K, and multiple ratios K1, K2, K3, ..., K are obtained in a continuous time. N-1 ,K N (N≥1), the conditions for the ventilation equipment to perform different ventilation modes are: If the difference between any ratio and its previous ratio is a negative number, a ventilation mode with a ventilation mode level one level lower than the current ventilation mode level is executed; If the difference between any ratio and the ratio of the previous one is a positive number, a ventilation mode with a ventilation mode level one level higher than the current ventilation mode level is executed.

[0028] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0029] The program code for implementing the method of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0030] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0031] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0032] The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0033] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship with each other. The server may be a cloud server, a server of a distributed system, or a server combined with a blockchain.

[0034] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0035] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A pickling control system with improved safety performance, characterized in that: include: A workpiece information determination module is used to determine the process parameters of the workpiece to be pickled; A historical workpiece information module stores historical pickling records of workpieces of different specifications, and generates a recommended process parameter range based on the process parameters of the workpiece to be pickled determined by the workpiece information determination module, wherein the recommended process parameter range includes an estimated amount of hydrogen generated per unit time; The acid control module generates a recommended process parameter range based on the historical workpiece information module and adjusts the parameters of the acid in the pickling tank; The hydrogen content detection module is used to collect the hydrogen content during the pickling process of the workpiece. The hydrogen content range collected includes at least the hydrogen content in the pickling tank, the hydrogen content in the air above the pickling tank, and the hydrogen content in the ventilation duct, and generates a judgment result of whether the hydrogen content exceeds the standard based on the actual amount of hydrogen generated collected per unit time; The ventilation control module adjusts the hydrogen content in the pickling process based on the estimated amount of hydrogen generated per unit time generated by the historical workpiece information module and the hydrogen content collected by the hydrogen content detection module. The adjustment of the hydrogen content in the pickling process includes the following steps: Step 1: Obtain the estimated amount of hydrogen produced per unit time generated by the historical workpiece information module and generate a first-level ventilation mode; Step 2: Obtain the determination result generated by the hydrogen content detection module, and generate a secondary ventilation mode, a tertiary ventilation mode, ..., an N-1 ventilation mode or an N ventilation mode according to the actual amount of hydrogen generated collected per unit time; Step 3: Repeat step 2 until the hydrogen content during the pickling process is controlled within the safety threshold.

2. A pickling control system with improved safety performance according to claim 1, characterized in that: The workpiece information determination module includes: A workpiece information input module is used to input the specifications of the workpiece to be pickled, wherein the specifications of the workpiece to be pickled include the material of the workpiece, the size of the workpiece, the original surface condition of the workpiece, and the surface requirements of the workpiece after treatment; The workpiece information output module is used to output the process parameters of the workpiece to be pickled, wherein the process parameters of the workpiece to be pickled include the moving speed of the workpiece and the maximum allowable corrosion rate of the workpiece.

3. A pickling control system with improved safety performance according to claim 2, characterized in that: The historical artifact information module includes: A historical workpiece data storage module, used to store historical pickling records of workpieces of different specifications, wherein the historical pickling records include initial concentration of acid solution, pickling temperature, pickling time and historical amount of hydrogen generated per unit time corresponding to workpieces of different specifications; The historical data analysis module establishes a prediction model between the initial concentration of the acid solution, the pickling temperature, the pickling time and the corresponding hydrogen production amount corresponding to the workpiece based on the historical pickling records stored in the historical workpiece data storage module, and generates the estimated production amount of hydrogen per unit time; The expression for the expected amount of hydrogen produced per unit time is as follows: （1）， In expression (1), It indicates the expected amount of hydrogen produced per unit time. represents the initial concentration of the acid solution, is the gas constant, Indicates the pickling temperature, represents the pre-exponential factor, represents the activation energy, Indicates the pickling time. The exponential term representing the activation energy at the pickling temperature, is the reaction rate constant, An exponential function that represents the change in reaction rate over time.

4. A pickling control system with improved safety performance according to claim 3, characterized in that: The acid liquid control module comprises: The acid solution preparation module adjusts the initial concentration of the acid solution according to the estimated amount of hydrogen produced per unit time generated by the historical workpiece information module and the process parameters of the workpiece to be pickled output by the workpiece information determination module; The acid solution temperature control module heats or cools the acid solution in the pickling tank based on the pickling temperature generated by the historical workpiece information module and the process parameters of the workpiece to be pickled output by the workpiece information determination module, so as to ensure that the temperature during the pickling process is constant within the set pickling temperature range; The acid circulation module circulates the acid in the pickling tank through pumps and pipes to ensure that the acid is evenly distributed in the pickling tank and prevent the sediment in the acid from accumulating on the surface of the workpiece; The acid replenishment module monitors the concentration and volume of the acid in the pickling tank in real time. When the acid concentration drops or the volume decreases below the set threshold, new acid is added to the pickling tank.

5. A pickling control system with improved safety performance according to claim 3, characterized in that: The hydrogen content detection module comprises: A hydrogen content collection module is connected to a plurality of hydrogen content collection units, which are respectively used to obtain the hydrogen content in the pickling tank, in the air above the pickling tank, and in the ventilation duct within a unit time, wherein the hydrogen content collection units in the pickling tank are located on the same horizontal plane, the hydrogen content collection units in the air above the pickling tank are distributed from bottom to top between the pickling tank and the ventilation duct, and the hydrogen content collection units in the ventilation duct are distributed from bottom to top in the ventilation duct; The hydrogen content data processing module is used to receive the hydrogen content per unit time transmitted by multiple hydrogen content collection units, number the original data and perform calculation processing. The hydrogen content collected by each hydrogen content collection unit in the pickling tank is recorded as a1, a2, a3, ..., a n-1 ,a n (n≥2), the hydrogen content collected by each hydrogen content collection unit in the air above the pickling tank is recorded as b1, b2, b3, ..., b m-1 ,b m (m≥2), the hydrogen content collected by each hydrogen content collection unit in the ventilation duct is recorded as c1, c2, c3, ..., c k-1 ,c k (k≥2), then, The actual amount of hydrogen produced per unit time is: （2）； The average value of hydrogen content in the air above the pickling tank per unit time is: （3）； The average value of hydrogen content in the ventilation duct per unit time is: （4）； The hydrogen content analysis module generates a determination result of whether the hydrogen content exceeds the standard based on the data generated by the hydrogen content data processing module and the recommended process parameter range generated by the historical workpiece information module.

6. A pickling control system with improved safety performance according to claim 5, characterized in that: The hydrogen content analysis module generates a determination result of whether the hydrogen content exceeds the standard, including: If satisfied ≥ , ≥0.6* or ≥0.2* If any two of the following conditions are met, it is determined that the hydrogen content exceeds the standard.

7. A pickling control system with improved safety performance according to claim 5, characterized in that: The hydrogen content analysis module generates a determination result of whether the hydrogen content exceeds the standard, and also includes: If b1, b2, b3, …, b m-1 ,b m Any value in (m≥2) is greater than or equal to 1.1* Or satisfy c1,c2,c3,…,c k-1 ,c k Any value in (k≥2) is greater than or equal to 1.1* , it is judged that the hydrogen content exceeds the standard.

8. A pickling control system with improved safety performance according to claim 6 or 7, characterized in that: The ventilation control module comprises: The ventilation equipment control module controls the ventilation equipment to execute the first-level ventilation mode according to the estimated amount of hydrogen generated per unit time generated by the historical data analysis module, and controls the ventilation equipment to execute the second-level ventilation mode, the third-level ventilation mode, ..., the N-1-level ventilation mode or the N-level ventilation mode according to the determination result of the hydrogen content analysis module, wherein the wind force provided by the second-level ventilation mode, the third-level ventilation mode, ..., the N-1-level ventilation mode or the N-level ventilation mode is greater than the wind force provided by the first-level ventilation mode, and in the second-level ventilation mode, the third-level ventilation mode, ..., the N-1-level ventilation mode and the N-level ventilation mode, the wind force provided increases with the level of the ventilation mode; The ventilation equipment status monitoring module monitors the operating status of the ventilation equipment in real time, including the opening / closing status, speed / air volume and other information of the ventilation equipment, and issues an alarm message when the ventilation equipment has an abnormal condition; Auxiliary ventilation module: When the ventilation equipment cannot meet the demand of quickly reducing the hydrogen content, the auxiliary ventilation module will start.

9. A pickling control system with improved safety performance according to claim 8, characterized in that: The steps of the ventilation equipment control module controlling the ventilation equipment to execute the secondary ventilation mode, the tertiary ventilation mode, ..., the N-1 ventilation mode or the N ventilation mode are as follows: Step 4: Settings / The ratio is K, and multiple ratios K1, K2, K3, ..., K are obtained in a continuous time. N-1 ,K N (N≥1), the conditions for the ventilation equipment to perform different ventilation modes are: If the difference between any ratio and the ratio of the previous one is negative, a ventilation mode with a ventilation mode level one level lower than the current ventilation mode level is executed; If the difference between any ratio and the ratio of the previous one is a positive number, a ventilation mode with a ventilation mode level one level higher than the current ventilation mode level is executed.

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