Method for controlling pulse valve matrix of bag-type dust collector

Abstract

The invention belongs to the technical field of bag-type dust collector pulse valve control, and particularly relates to a bag-type dust collector pulse valve matrix control method, which comprises the following steps: S1, designing a matrix layout, determining the number of pulse valves and the arrangement mode of the pulse valves in a matrix, and utilizing a matrix control circuit to realize the purpose that A = the number of bins N + the number of single-bin pulse valves X, s2, configuring a controller, selecting a proper PLC (Programmable Logic Controller) or controller, and programming to control the working period and time of each pulse valve; S3, wiring, wiring the pulse valves to the controller according to a matrix layout, ensuring the correct circuit connection, and controlling the circuit by utilizing the matrix, so as to achieve the purpose of controlling the working period and time of each pulse valve. A = the number of chambers N + the number X of single-chamber pulse valves, B = the number N of chambers * the number X of single-chamber pulse valves can be achieved, a proper pulse valve matrix can be designed according to the number N of chambers and the number X of single-chamber pulse valves in combination with actual working condition requirements, and cooperative work and flexible adjustment of the pulse valves can be met.

Description

Technical Field

[0001] The invention relates to the technical field of bag filter pulse valve control, and in particular to a bag filter pulse valve matrix control method. Background Art

[0002] The control principle of the pulse valve of the bag dust collector mainly relies on the working mechanism of the electromagnetic pulse valve, which controls the opening and closing of the valve through electrical signals, thereby realizing the pulse jet cleaning process.

[0003] The working principle of the pulse valve of the bag dust collector, especially the right-angle electromagnetic pulse valve and the submerged pulse valve, is roughly the same, and the main difference lies in the slight difference in structure. Both pulse valves are composed of an electromagnetic pilot head, a diaphragm and a valve body, in which the area of ​​the rear cavity of the diaphragm is usually larger than the area of ​​the front cavity. This design allows the diaphragm to remain in the closed position under the action of air pressure. When the electronic controller inputs an electrical signal, the electromagnetic pilot head attracts the moving column and opens the unloading hole, so that the pressure gas in the rear cavity of the diaphragm is quickly discharged. At the same time, the pressure gas in the front cavity of the diaphragm lifts the diaphragm and opens the channel for blowing. After the electrical pulse signal disappears, the spring of the electromagnetic pilot head immediately resets the moving column to close the unloading hole. The gas pressure in the rear cavity of the diaphragm and the spring force jointly cause the diaphragm to close the channel and stop blowing.

[0004] The characteristic of the right-angle pulse valve is that its air inlet and outlet pipes are at a 90° right angle, while the submerged pulse valve directly uses the air bag as the lower air chamber. When the two pulse valves are not powered, the gas enters the decompression chamber through the constant pressure pipes of the upper and lower shells and the throttle holes therein. Because the valve core blocks the pressure relief hole under the action of the spring, the gas will not be discharged, making the pressure of the decompression chamber and the lower air chamber consistent. When the pulse valve is powered, the valve core is lifted up by the electromagnetic force, the pressure relief hole opens, and the gas is ejected for blowing.

[0005] This working principle enables the pulse valve of the bag filter to clean dust efficiently. Through a short blowing process, a strong vibration effect is generated, which effectively shakes off the dust and particles on the filter bag. At the same time, it uses compressed air as the power source, without the need to add additional chemicals or fuel, which is energy-saving and environmentally friendly.

[0006] Therefore, there are a large number of electromagnetic pulse valves inside the bag dust collector. The number of pulse valves B = the number of chambers N * the number of pulse valves in a single chamber X. For example, in the bag dust collector system supporting the circulating fluidized bed boiler with a common steam capacity of 220t / h, there are generally 8 chambers, each chamber is equipped with 18 pulse valves, and a total of 144 pulse valves need to be remotely controlled to realize the remote automatic blowing of the bag dust collector. This requires the laying of a large number of cables to meet the needs of controlling the pulse valves, resulting in high construction costs and extremely complex later maintenance. In order to save the project construction cable materials and the number of DCS / PLC io modules purchased, a centralized matrix control circuit can be used to control the blowing of the pulse valve with very few DO control points, thereby adjusting the working status and timing of the pulse valves in each chamber. Summary of the invention

[0007] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0008] Therefore, the purpose of the present invention is to provide a bag filter pulse valve matrix control method, which uses a matrix control circuit to achieve A=number of chambers N+number of pulse valves in a single chamber X, that is, B=number of chambers N*number of pulse valves in a single chamber X. According to the number of chambers N and the number of pulse valves in a single chamber X, combined with actual working conditions, a suitable pulse valve matrix can be designed to meet the coordinated work and flexible adjustment of each pulse valve.

[0009] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0010] A bag filter pulse valve matrix control method, comprising the following steps:

[0011] S1. Design matrix layout: determine the number of pulse valves and their arrangement in the matrix, and use the matrix control circuit to achieve A = number of chambers N + number of pulse valves in a single chamber X, which can achieve B = number of chambers N * number of pulse valves in a single chamber X;

[0012] S2. Configure the controller: Select a suitable PLC or controller and program it to control the working cycle and time of each pulse valve;

[0013] S3. Wiring: Wire the pulse valve to the controller according to the matrix layout to ensure that the circuit is connected correctly;

[0014] S4. Write control program: Write program in the controller to realize sequential or group control of pulse valves;

[0015] S5. Testing and adjustment: Run the system and monitor its performance, and adjust the program and circuit configuration according to the actual results.

[0016] As a preferred solution of the pulse valve matrix control method for a bag filter according to the present invention, the step S1 includes the following operation steps:

[0017] A1. Demand Analysis:

[0018] System specifications, understand the specifications and requirements of the bag filter, such as the filter area and pulse valve coverage;

[0019] Cleaning requirements, determine the bag area that each pulse valve needs to cover to estimate the number of pulse valves required;

[0020] A2. Calculate the number of pulse valves required:

[0021] Number of filter bags: Calculate the total number of pulse valves required based on the number of filter bags in the bag filter and the cleaning requirements of each bag;

[0022] Pulse valve capacity, considering the cleaning capacity and coverage area of ​​each pulse valve, ensuring sufficient number to cover all filter bags;

[0023] A3. Select the matrix layout mode:

[0024] The number of rows and columns determines the number of rows and columns of the matrix. For example, if 20 pulse valves are required, a layout of 5 rows and 4 columns or 4 rows and 5 columns can be selected;

[0025] Compact layout: If space is limited, you can choose a compact layout and adjust the number and arrangement of pulse valves to the most effective mode;

[0026] A4. Determine the arrangement method:

[0027] Even distribution, ensuring that the pulse valves are evenly distributed in the matrix so that each pulse valve can effectively cover the designated area;

[0028] Row and column arrangement: select the row and column arrangement to ensure that the layout and connection of equipment in actual installation meet the design requirements;

[0029] A5. Calculate spacing and position:

[0030] Spacing calculation, calculate the spacing between each pulse valve to ensure that they can cover the entire bag area and do not interfere with each other;

[0031] Installation location: determine the precise installation location of each pulse valve to ensure that they can be effectively cleaned in actual operation;

[0032] A6. Verification and optimization:

[0033] Simulation test: perform layout simulation before installation to verify the coverage effect and wiring scheme of the pulse valve;

[0034] Adjustment and optimization: adjust the number, position and arrangement of pulse valves according to the test results to optimize system performance.

[0035] As a preferred solution of the pulse valve matrix control method for a bag filter according to the present invention, the step S2 includes the following steps:

[0036] B1. Control interface:

[0037] Controller selection: select a suitable PLC or other controller to ensure that it can process the control signals of all pulse valves in the matrix and control and record the working cycle and time of each pulse valve;

[0038] Interface configuration, configure a control interface for each pulse valve and connect it to the controller;

[0039] B2. Programming control logic:

[0040] Set control parameters, write programs in the controller, and set the start time, stop time and interval time of the pulse valve;

[0041] Matrix control strategy, define the matrix control strategy, such as row-by-row and column-by-column cleaning or group cleaning;

[0042] B3. Verification and debugging:

[0043] System test, run the system test to check whether each pulse valve works as expected;

[0044] Adjustment and optimization: adjust control parameters and layout according to test results to improve the overall performance of the system;

[0045] B4. Documentation and Maintenance:

[0046] Record layout and control schemes, record matrix layout, wiring schemes and control procedures for future reference and maintenance;

[0047] Develop a maintenance plan and formulate a regular maintenance plan to ensure the long-term stable operation of the system.

[0048] As a preferred solution of the pulse valve matrix control method for a bag filter of the present invention, in which: in the pulse valve matrix circuit of step S3, a diode is used, and the operation method of step S3 is:

[0049] C1. Wiring planning:

[0050] Cable layout: Design the cable layout according to the matrix layout to ensure that the power supply and control signal of each pulse valve can be correctly connected and that the cables do not interfere with each other;

[0051] C2. Control interface planning:

[0052] Interface configuration, configure the controller interface to ensure that the control system can manage the operation of all pulse valves.

[0053] As a preferred solution of the pulse valve matrix control method for a bag filter according to the present invention, the step S4 includes the following specific operations:

[0054] D1. Define control requirements:

[0055] Operation objectives: clarify the operation purpose of the pulse valve, such as regular cleaning of the bag, controlling the pulse time, etc.

[0056] Control mode, determine the control mode of the pulse valve, individual control or group control;

[0057] D2. Select programming environment:

[0058] Programming tools, choose appropriate programming tools or software;

[0059] Controller type, determine the type and specifications of the controller used, such as PLC, DCS;

[0060] D3. Design control logic:

[0061] Pulse cycle: set the pulse cycle of each pulse valve, including opening and closing time;

[0062] Timer configuration, use timer or timer function to achieve accurate time control;

[0063] Matrix scanning, if there are multiple pulse valves, design the scanning sequence to activate the pulse valves by row or column;

[0064] Group control, start the pulse valve according to the preset group to improve cleaning efficiency.

[0065] D4. Write the control program:

[0066] Write ladder diagrams and use ladder diagram programming language to design the switching logic of pulse valves, including timers, relays and conditional judgments;

[0067] Write a function block diagram:

[0068] Design function blocks, create pulse generation blocks, timer blocks and control blocks to form the overall control logic;

[0069] Example, use the timer block to control the switch of the pulse valve and create a periodic pulse output;

[0070] Writing structured text:

[0071] Write code to write control programs using structured text language, handling complex logic and loops.

[0072] As a preferred solution of the pulse valve matrix control method for bag filter of the present invention, the test and adjustment in step S5 include the following:

[0073] E1. Testing and debugging:

[0074] Simulation test: simulate in programming software to verify control logic and time settings;

[0075] On-site debugging, download the program to the actual controller, connect the pulse valve for on-site testing;

[0076] Optimize and adjust the time settings and control logic according to the test results to ensure stable operation of the system.

[0077] Compared with the prior art, the present invention has the following beneficial effects:

[0078] 1. Using the matrix control circuit, A = number of chambers N + number of pulse valves in a single chamber X can be used to achieve B = number of chambers N * number of pulse valves in a single chamber X. According to the number of chambers N and the number of pulse valves in a single chamber X, combined with the actual working conditions, a suitable pulse valve matrix can be designed to meet the coordinated work and flexible adjustment of each pulse valve;

[0079] 2. By arranging multiple pulse valves in a matrix form and controlling them in sequence or in groups, efficient cleaning of dust collector bags can be achieved, so as to accurately control the pulse spraying time and interval, improve dust removal effect, and extend the service life of bags. The system sets the working cycle and pulse time of the pulse valve according to actual needs, and programs and schedules them through PLC or other controllers to achieve the best dust removal effect;

[0080] 3. In the pulse valve matrix circuit, diodes are used to protect integrated circuits and pulse valves to prevent reverse voltage and current generated by electromagnetic induction from damaging circuits and components, and also to stabilize the voltage. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in combination with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0082] Figure 1 This is a schematic diagram of the pulse valve matrix control steps of the present invention;

[0083] Figure 2 This is a schematic diagram of the matrix layout operation steps of the present invention;

[0084] Figure 3 A schematic diagram of the controller configuration steps of the present invention;

[0085] Figure 4 A schematic diagram of the wiring layout operation steps of the present invention;

[0086] Figure 5 A schematic diagram of the operation steps for writing the control program of the present invention;

[0087] Figure 6 It is a schematic diagram of the matrix control circuit of the present invention. DETAILED DESCRIPTION

[0088] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0089] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0090] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0091] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0092] The present invention provides a pulse valve matrix control method for bag filter, please refer to Figure 1 , including the following steps:

[0093] S1. Design matrix layout: determine the number of pulse valves and their arrangement in the matrix, and use the matrix control circuit to achieve A = number of chambers N + number of pulse valves in a single chamber X, which can achieve B = number of chambers N * number of pulse valves in a single chamber X;

[0094] S2. Configure the controller: Select a suitable PLC or controller and program it to control the working cycle and time of each pulse valve;

[0095] S3. Wiring: Wire the pulse valve to the controller according to the matrix layout to ensure that the circuit is connected correctly;

[0096] S4. Write control program: Write program in the controller to realize sequential or group control of pulse valves;

[0097] S5, Testing and Adjustment: Run the system and monitor its performance, and adjust the program and circuit configuration according to the actual results;

[0098] Step S1 includes the following steps:

[0099] A1. Demand Analysis:

[0100] System specifications, understand the specifications and requirements of the bag filter, such as the filter area and pulse valve coverage;

[0101] Cleaning requirements, determine the bag area that each pulse valve needs to cover to estimate the number of pulse valves required;

[0102] A2. Calculate the number of pulse valves required:

[0103] Number of filter bags: Calculate the total number of pulse valves required based on the number of filter bags in the bag filter and the cleaning requirements of each bag;

[0104] Pulse valve capacity, considering the cleaning capacity and coverage area of ​​each pulse valve, ensuring sufficient number to cover all filter bags;

[0105] A3. Select the matrix layout mode:

[0106] The number of rows and columns determines the number of rows and columns of the matrix. For example, if 20 pulse valves are required, a layout of 5 rows and 4 columns or 4 rows and 5 columns can be selected;

[0107] Compact layout: If space is limited, you can choose a compact layout and adjust the number and arrangement of pulse valves to the most effective mode;

[0108] A4. Determine the arrangement method:

[0109] Even distribution, ensuring that the pulse valves are evenly distributed in the matrix so that each pulse valve can effectively cover the designated area;

[0110] Row and column arrangement: select the row and column arrangement to ensure that the layout and connection of equipment in actual installation meet the design requirements;

[0111] A5. Calculate spacing and position:

[0112] Spacing calculation, calculate the spacing between each pulse valve to ensure that they can cover the entire bag area and do not interfere with each other;

[0113] Installation location: determine the precise installation location of each pulse valve to ensure that they can be effectively cleaned in actual operation;

[0114] A6. Verification and optimization:

[0115] Simulation test: perform layout simulation before installation to verify the coverage effect and wiring scheme of the pulse valve;

[0116] Adjustment and optimization: adjust the number, position and arrangement of pulse valves according to the test results to optimize system performance;

[0117] Step S2 includes the following steps:

[0118] B1. Control interface:

[0119] Controller selection: select a suitable PLC or other controller to ensure that it can process the control signals of all pulse valves in the matrix and control and record the working cycle and time of each pulse valve;

[0120] Interface configuration, configure a control interface for each pulse valve and connect it to the controller;

[0121] B2. Programming control logic:

[0122] Set control parameters, write programs in the controller, and set the start time, stop time and interval time of the pulse valve;

[0123] Matrix control strategy, define the matrix control strategy, such as row-by-row and column-by-column cleaning or group cleaning;

[0124] B3. Verification and debugging:

[0125] System test, run the system test to check whether each pulse valve works as expected;

[0126] Adjustment and optimization: adjust control parameters and layout according to test results to improve the overall performance of the system;

[0127] B4. Documentation and Maintenance:

[0128] Record layout and control schemes, record matrix layout, wiring schemes and control procedures for future reference and maintenance;

[0129] Develop a maintenance plan and formulate a regular maintenance plan to ensure the long-term stable operation of the system.

[0130] In the pulse valve matrix circuit of step S3, a diode is used, and the operation method of step S3 is:

[0131] C1. Wiring planning:

[0132] Cable layout: Design the cable layout according to the matrix layout to ensure that the power supply and control signal of each pulse valve can be correctly connected and that the cables do not interfere with each other;

[0133] C2. Control interface planning:

[0134] Interface configuration, configure the controller interface to ensure that the control system can manage the operation of all pulse valves.

[0135] Step S4 includes the following operations:

[0136] D1. Define control requirements:

[0137] Operation objectives: clarify the operation purpose of the pulse valve, such as regular cleaning of the bag, controlling the pulse time, etc.

[0138] Control mode, determine the control mode of the pulse valve, individual control or group control;

[0139] D2. Select programming environment:

[0140] Programming tools, choose appropriate programming tools or software;

[0141] Controller type, determine the type and specifications of the controller used, such as PLC, DCS;

[0142] D3. Design control logic:

[0143] Pulse cycle: set the pulse cycle of each pulse valve, including opening and closing time;

[0144] Timer configuration, use timer or timer function to achieve accurate time control;

[0145] Matrix scanning, if there are multiple pulse valves, design the scanning sequence to activate the pulse valves by row or column;

[0146] Group control, start the pulse valve according to the preset group to improve cleaning efficiency.

[0147] D4. Write the control program:

[0148] Write ladder diagrams and use ladder diagram programming language to design the switching logic of pulse valves, including timers, relays and conditional judgments;

[0149] Write a function block diagram:

[0150] Design function blocks, create pulse generation blocks, timer blocks and control blocks to form the overall control logic;

[0151] Example, use the timer block to control the switch of the pulse valve and create a periodic pulse output;

[0152] Writing structured text:

[0153] Write code to write control programs using structured text languages, handling complex logic and loops.

[0154] The testing and adjustment in step S5 include the following:

[0155] E1. Testing and debugging:

[0156] Simulation test: simulate in programming software to verify control logic and time settings;

[0157] On-site debugging, download the program to the actual controller, connect the pulse valve for on-site testing;

[0158] Optimize and adjust the time settings and control logic according to the test results to ensure stable operation of the system.

[0159] 1. After applying this technology, the number of control points of DCS / PLC can be greatly reduced. For example, for the 220T / H steam boiler mentioned above, DCS / PLC needs to be equipped with 144 DO points to control the pulse valve 1 to 1. After adopting matrix control, only 26 DO points are needed to control the pulse valve, which greatly reduces the procurement cost of the engineering control system, reduces the labor input in the debugging stage, and saves resources;

[0160] 2. After applying this technology, the number of circuit cores from pulse valve to DCS / plc is reduced from N*X*2 to (N+X)*2. For example, in the above-mentioned 220T / H steam boiler, 144 pulse valves need to be controlled in the past, which requires 144 2-core control cables to be pulled from the pulse valve to the DCS. However, after adopting the matrix control circuit, only 26 (8+18=26) 2-core control cables are needed to connect to the DCS, which optimizes a large number of cables and saves a lot of construction costs for the construction unit.

[0161] 3. In the pulse valve matrix circuit, a diode is used in the DC circuit. The main characteristic of the diode is unidirectional conductivity, that is, under the action of the forward voltage, the on-resistance is very small; under the action of the reverse voltage, the on-resistance is extremely large or infinite. Because the diode has the above characteristics, it can be used to protect integrated circuits and pulse valve coils to prevent the reverse voltage and current generated by electromagnetic induction from damaging the circuit and components, and also plays a role in stabilizing the voltage. Extending the service life of the equipment

[0162] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A bag filter pulse valve matrix control method, characterized in that: The steps are as follows: S1. Design matrix layout: determine the number of pulse valves and their arrangement in the matrix, and use the matrix control circuit to achieve B = number of chambers N * number of pulse valves in a single chamber X by using A = number of chambers N + number of pulse valves in a single chamber X; S2. Configure the controller: Select a suitable PLC or controller and program it to control the working cycle and time of each pulse valve; S3. Wiring: Wire the pulse valve to the controller according to the matrix layout to ensure that the circuit is connected correctly; S4. Write control program: Write program in the controller to realize sequential or group control of pulse valves; S5. Testing and adjustment: Run the system and monitor its performance, and adjust the program and circuit configuration according to the actual results.

2. A bag filter pulse valve matrix control method according to claim 1, characterized in that: The step S1 includes the following steps: A1. Demand Analysis: System specifications, understand the specifications and requirements of the bag filter, such as the filter area and pulse valve coverage; Cleaning requirements, determine the bag area that each pulse valve needs to cover to estimate the number of pulse valves required; A2. Calculate the number of pulse valves required: Number of filter bags: Calculate the total number of pulse valves required based on the number of filter bags in the bag filter and the cleaning requirements of each bag; Pulse valve capacity, considering the cleaning capacity and coverage area of ​​each pulse valve, ensuring sufficient number to cover all filter bags; A3. Select the matrix layout mode: The number of rows and columns determines the number of rows and columns of the matrix. For example, if 20 pulse valves are required, a layout of 5 rows and 4 columns or 4 rows and 5 columns can be selected; Compact layout: If space is limited, you can choose a compact layout and adjust the number and arrangement of pulse valves to the most effective mode; A4. Determine the arrangement method: Even distribution, ensuring that the pulse valves are evenly distributed in the matrix so that each pulse valve can effectively cover the designated area; Row and column arrangement: select the row and column arrangement to ensure that the layout and connection of equipment in actual installation meet the design requirements; A5. Calculate spacing and position: Spacing calculation, calculate the spacing between each pulse valve to ensure that they can cover the entire bag area and do not interfere with each other; Installation location: determine the precise installation location of each pulse valve to ensure that they can be effectively cleaned in actual operation; A6. Verification and optimization: Simulation test: perform layout simulation before installation to verify the coverage effect and wiring scheme of the pulse valve; Adjustment and optimization: adjust the number, position and arrangement of pulse valves according to the test results to optimize system performance.

3. A bag filter pulse valve matrix control method according to claim 2, characterized in that: The step S2 includes the following steps: B1. Control interface: Controller selection: select a suitable PLC or other controller to ensure that it can process the control signals of all pulse valves in the matrix and control and record the working cycle and time of each pulse valve; Interface configuration, configure a control interface for each pulse valve and connect it to the controller; B2. Programming control logic: Set control parameters, write programs in the controller, and set the start time, stop time and interval time of the pulse valve; Matrix control strategy, define the matrix control strategy, such as row-by-row and column-by-column cleaning or group cleaning; B3. Verification and debugging: System test, run the system test to check whether each pulse valve works as expected; Adjustment and optimization: adjust control parameters and layout according to test results to improve the overall performance of the system; B4. Documentation and Maintenance: Record layout and control schemes, record matrix layout, wiring schemes and control procedures for future reference and maintenance; Develop a maintenance plan and formulate a regular maintenance plan to ensure the long-term stable operation of the system.

4. A bag filter pulse valve matrix control method according to claim 3, characterized in that: In the pulse valve matrix circuit of step S3, a diode is used, and the operation method of step S3 is: C1. Wiring planning: Cable layout: Design the cable layout according to the matrix layout to ensure that the power supply and control signal of each pulse valve can be correctly connected and that the cables do not interfere with each other; C2. Control interface planning: Interface configuration, configure the controller interface to ensure that the control system can manage the operation of all pulse valves.

5. A bag filter pulse valve matrix control method according to claim 4, characterized in that: The step S4 includes the following specific operations: D1. Define control requirements: Operation objectives: clarify the operation purpose of the pulse valve, such as regular cleaning of the bag, controlling the pulse time, etc. Control mode, determine the control mode of the pulse valve, individual control or group control; D2. Select programming environment: Programming tools, choose appropriate programming tools or software; Controller type, determine the type and specifications of the controller used, such as PLC, DCS; D3. Design control logic: Pulse cycle: set the pulse cycle of each pulse valve, including opening and closing time; Timer configuration, use timer or timer function to achieve accurate time control; Matrix scanning, if there are multiple pulse valves, design the scanning sequence to activate the pulse valves by row or column; Group control, start the pulse valve according to the preset group to improve cleaning efficiency. D4. Write the control program: Write ladder diagrams and use ladder diagram programming language to design the switching logic of pulse valves, including timers, relays and conditional judgments; Write a function block diagram: Design function blocks, create pulse generation blocks, timer blocks and control blocks to form the overall control logic; Example, use the timer block to control the switch of the pulse valve and create a periodic pulse output; Writing structured text: Write code to write control programs using structured text languages, handling complex logic and loops.

6. A bag filter pulse valve matrix control method according to claim 5, characterized in that: The testing and adjustment in step S5 include the following: E1. Testing and debugging: Simulation test: simulate in programming software to verify control logic and time settings; On-site debugging, download the program to the actual controller, connect the pulse valve for on-site testing; Optimize and adjust the time settings and control logic according to the test results to ensure stable operation of the system.

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