A ceramic feed valve control method, device, electronic device and storage medium

Abstract

This application belongs to the technical field of valve control, and discloses a control method, device, electronic device and storage medium for a ceramic feed valve. The method includes: obtaining the operating parameters of the ceramic feed valve and the nitrogen input parameters of the nitrogen input system, predicting the sediment reduction rate, sediment accumulation amount and sediment wear amount based on the sediment reduction rate model, dynamic sediment accumulation model and sediment wear model, combining the operating parameters and nitrogen input parameters, designing a nitrogen input strategy according to the sediment reduction rate, sediment accumulation amount and sediment wear amount, and controlling the ceramic feed valve and the nitrogen input system according to the nitrogen input strategy to clean the sediment; the nitrogen input strategy designed by the sediment reduction rate, sediment accumulation amount and sediment wear amount is used to control the ceramic feed valve and the nitrogen input system to clean the sediment, realizing the effective control of the ceramic feed valve.

Description

Technical Field

[0001] This application relates to the technical field of valve control. Specifically, it relates to a ceramic feed valve control method, device, electronic device, and storage medium. Background Art

[0002] In modern coking production processes, the control of pulverized coal feeding at the inlet of the coking chamber in a coking plant is crucial, as it directly affects the quality and production efficiency of coke products. Currently, the widely used pulverized coal feeding control device is a ceramic feed valve. This valve utilizes the high-temperature resistance and wear resistance of ceramic materials to adapt to the harsh working conditions such as high temperature and dust at the coking chamber inlet.

[0003] However, the ceramic feed valve faces severe technical challenges during actual operation. The temperature at the coking chamber inlet is extremely high, where gas and pulverized coal are mixed to form a high-temperature and high-concentration mixed gas. Inevitably, this mixed gas will seep into the tiny gaps between the sealing surfaces of the ceramic feed valve. The gas contains a large amount of tar components, which are prone to pyrolysis and polymerization reactions under high temperature. After mixing with pulverized coal particles, they form a viscous mixture. When the valve of the ceramic feed valve closes, the viscous mixture remaining in the sealing surface gap gradually cools and hardens, eventually solidifying into hard coking deposits. These deposits are like grit and firmly adhere between the ceramic sealing surfaces. Since the valve needs to be frequently opened and closed to control the amount of pulverized coal feeding, relative movement occurs between the sealing surfaces each time it is opened and closed. The deposit particles are repeatedly squeezed and rubbed between the sealing surfaces, acting like abrasives and accelerating the wear of the ceramic sealing surfaces. Even worse, the presence of deposits will exacerbate the expansion of microcracks on the sealing surfaces, further damaging the sealing surfaces and thus damaging the ceramic feed valve.

[0004] Therefore, in order to solve the technical problem that the use of a ceramic feed valve in a coking production process may cause valve damage due to coking deposits generated in the sealing surface gap of the ceramic feed valve, thereby affecting production efficiency, there is an urgent need for a ceramic feed valve control method, device, electronic device, and storage medium. Summary of the Invention

[0005] The purpose of this application is to provide a method, device, electronic device and storage medium for controlling a ceramic feed valve. By calculating the sediment reduction rate, sediment accumulation and sediment wear obtained from a preset sediment reduction rate model, a preset dynamic sediment accumulation model and a preset sediment wear model, a nitrogen input strategy is designed to control the ceramic feed valve and the nitrogen input system to clean the sediment, so as to solve the problem that when the ceramic feed valve is used in the coking production process, the coking sediment generated due to the sealing surface gap of the ceramic feed valve causes valve damage and affects the production efficiency. The nitrogen input can be dynamically adjusted according to the operating state of the ceramic feed valve and the sediment situation to effectively reduce sediment accumulation, realizing effective control of the ceramic feed valve.

[0006] In a first aspect, this application provides a method for controlling a ceramic feed valve, including:

[0007] Obtain the operating parameters of the ceramic feed valve and the nitrogen input parameters of the nitrogen input system;

[0008] Based on a preset sediment reduction rate model, a preset dynamic sediment accumulation model and a preset sediment wear model, and combining the operating parameters and the nitrogen input parameters, predict the sediment reduction rate, sediment accumulation and sediment wear;

[0009] According to the sediment reduction rate, the sediment accumulation and the sediment wear, as well as the composition parameters of the sediment and the structural parameters of the ceramic feed valve, and combining a preset valve sealing reliability target and nitrogen consumption constraint conditions, design a nitrogen input strategy;

[0010] According to the nitrogen input strategy, control the ceramic feed valve and the nitrogen input system to clean the sediment.

[0011] The method for controlling a ceramic feed valve provided by this application can realize the control of the ceramic feed valve. By calculating the sediment reduction rate, sediment accumulation and sediment wear obtained from a preset sediment reduction rate model, a preset dynamic sediment accumulation model and a preset sediment wear model, a nitrogen input strategy is designed to control the ceramic feed valve and the nitrogen input system to clean the sediment, so as to solve the problem that when the ceramic feed valve is used in the coking production process, the coking sediment generated due to the sealing surface gap of the ceramic feed valve causes valve damage and affects the production efficiency. The nitrogen input can be dynamically adjusted according to the operating state of the ceramic feed valve and the sediment situation to effectively reduce sediment accumulation, realizing effective control of the ceramic feed valve.

[0012] Optionally, according to the sediment reduction rate, the sediment accumulation amount, the sediment wear amount, the composition parameters of the sediment, and the structural parameters of the ceramic feed valve, in combination with the preset valve sealing reliability target and the nitrogen consumption constraint conditions, design a nitrogen input strategy, including:

[0013] Obtain the composition parameters of the sediment and the structural parameters of the ceramic feed valve;

[0014] According to the composition parameters and the structural parameters, in combination with the preset valve sealing reliability target and the nitrogen consumption constraint conditions, construct a preliminary nitrogen input strategy;

[0015] Based on the sediment reduction rate, the sediment accumulation amount, and the sediment wear amount, optimize the preliminary nitrogen input strategy to obtain the nitrogen input strategy.

[0016] The ceramic feed valve control method provided by the present application can control the ceramic feed valve. By calculating the sediment reduction rate, the sediment accumulation amount, and the sediment wear amount, optimize the preliminary nitrogen input strategy constructed according to the composition parameters of the sediment and the structural parameters of the ceramic feed valve to obtain the nitrogen input strategy. By adding the composition parameters of the sediment and the structural parameters of the ceramic feed valve, the design of the nitrogen input strategy is made more refined and targeted, which is beneficial to improving the cleaning efficiency of the sediment.

[0017] Optionally, according to the composition parameters and the structural parameters, in combination with the preset valve sealing reliability target and the nitrogen consumption constraint conditions, construct a preliminary nitrogen input strategy, including:

[0018] According to the composition parameters, determine the material properties of the sediment;

[0019] Extract the sealing surface gap distribution of the ceramic feed valve from the structural parameters;

[0020] Based on the material properties and the sealing surface gap distribution, in combination with the preset valve sealing reliability target and the nitrogen consumption constraint conditions, construct the preliminary nitrogen input strategy.

[0021] Optionally, based on the material properties and the sealing surface gap distribution, in combination with the preset valve sealing reliability target and the nitrogen consumption constraint conditions, construct a preliminary nitrogen input strategy, including:

[0022] According to the preset valve sealing reliability target and the nitrogen consumption constraint conditions, construct an initial preliminary nitrogen input strategy;

[0023] Based on the material properties and the sealing surface gap distribution, the nitrogen input pressure and nitrogen input time in the initial preliminary nitrogen input strategy are optimized to obtain a preliminary nitrogen input strategy.

[0024] Optionally, based on the deposit reduction rate, the deposit accumulation amount and the deposit wear amount, the preliminary nitrogen input strategy is optimized to obtain a nitrogen input strategy, comprising:

[0025] When the accumulated amount of deposits is greater than or equal to a preset accumulated amount threshold, increasing the nitrogen input pressure of the nitrogen input system or extending the nitrogen input time of the nitrogen input system to increase the deposit reduction rate and the deposit wear amount, thereby optimizing the preliminary nitrogen input strategy to obtain a nitrogen input strategy;

[0026] When the accumulated amount of the deposit is less than the preset accumulated amount threshold, determine whether the nitrogen input consumption of the nitrogen input system is greater than the preset nitrogen consumption threshold; if so, reduce the nitrogen input pressure of the nitrogen input system or shorten the nitrogen input time of the nitrogen input system to reduce the nitrogen consumption, thereby optimizing the preliminary nitrogen input strategy to obtain a nitrogen input strategy; if not, maintain the existing nitrogen input pressure and nitrogen input time to obtain a nitrogen input strategy.

[0027] Optionally, according to the nitrogen input strategy, controlling the ceramic feed valve and the nitrogen input system to clean the deposits comprises:

[0028] Controlling the nitrogen input system to execute the nitrogen input strategy to clean the deposits while obtaining the real-time flow rate of the mixed gas of coal gas and coal powder when passing through the ceramic feed valve;

[0029] The valve opening of the ceramic feed valve is adjusted so that the real-time flow rate tends to the preset coking production target flow rate.

[0030] The ceramic feed valve control method provided in the present application can realize the control of the ceramic feed valve. While implementing the nitrogen input strategy to reduce deposits, the ceramic feed valve can also be controlled to maintain the stability of the flow rate of the coal gas and coal powder mixed gas, ensuring that the coking production process proceeds according to the predetermined target and ensuring the production efficiency of the coking production.

[0031] In a second aspect, the present application provides a ceramic feed valve control device, comprising:

[0032] An acquisition module, used for acquiring operating parameters of the ceramic feed valve and nitrogen input parameters of the nitrogen input system;

[0033] A prediction module, configured to predict a sediment reduction rate, a sediment accumulation amount, and a sediment wear amount based on a preset sediment reduction rate model, a preset dynamic sediment accumulation model, and a preset sediment wear model, in combination with the operating parameters and the nitrogen input parameters;

[0034] A design module, configured to design a nitrogen input strategy according to the sediment reduction rate, the sediment accumulation amount, and the sediment wear amount, as well as the composition parameters of the sediment and the structural parameters of the ceramic feed valve, in combination with a preset valve sealing reliability target and a nitrogen consumption constraint condition;

[0035] A control module, configured to control the ceramic feed valve and the nitrogen input system according to the nitrogen input strategy to clean the sediment.

[0036] The ceramic feed valve control device calculates the sediment reduction rate, the sediment accumulation amount, and the sediment wear amount through a preset sediment reduction rate model, a preset dynamic sediment accumulation model, and a preset sediment wear model, and designs a nitrogen input strategy to control the ceramic feed valve and the nitrogen input system to clean the sediment, solving the problem that in the coking production process, when using a ceramic feed valve, the coking sediment generated due to the sealing surface gap of the ceramic feed valve causes valve damage and affects production efficiency. The nitrogen input can be dynamically adjusted according to the operating state of the ceramic feed valve and the sediment situation to effectively reduce sediment accumulation, realizing effective control of the ceramic feed valve.

[0037] In a third aspect, the present application provides an electronic device, including a processor and a memory, where the memory stores a computer program executable by the processor, and when the processor executes the computer program, it runs the steps in the ceramic feed valve control method as described above.

[0038] In a fourth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it runs the steps in the ceramic feed valve control method as described above.

[0039] Beneficial effects: The ceramic feed valve control method, device, electronic device, and storage medium provided by the present application calculate the sediment reduction rate, the sediment accumulation amount, and the sediment wear amount through a preset sediment reduction rate model, a preset dynamic sediment accumulation model, and a preset sediment wear model, and design a nitrogen input strategy to control the ceramic feed valve and the nitrogen input system to clean the sediment, solving the problem that in the coking production process, when using a ceramic feed valve, the coking sediment generated due to the sealing surface gap of the ceramic feed valve causes valve damage and affects production efficiency. The nitrogen input can be dynamically adjusted according to the operating state of the ceramic feed valve and the sediment situation to effectively reduce sediment accumulation, realizing effective control of the ceramic feed valve. Description of the Drawings

[0040] Figure 1 This is a flowchart of the ceramic feed valve control method provided by the embodiment of the present application.

[0041] Figure 2 This is a schematic structural diagram of the ceramic feed valve control device provided by the embodiment of the present application.

[0042] Figure 3 This is a schematic structural diagram of the electronic device provided by the embodiment of the present application.

[0043] Reference numeral description: 1, acquisition module; 2, prediction module; 3, design module; 4, control module; 301, processor; 302, memory; 303, communication bus. Detailed Embodiments

[0044] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts belong to the scope of protection of the present application.

[0045] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0046] Please refer to Figure 1 , Figure 1 which is a ceramic feed valve control method in some embodiments of the present application for controlling a ceramic feed valve, including the steps of:

[0047] Step S101, obtaining the operating parameters of the ceramic feed valve and the nitrogen input parameters of the nitrogen input system;

[0048] Step S102, based on a preset sediment reduction rate model, a preset dynamic sediment accumulation model, and a preset sediment wear model, combining the operating parameters and the nitrogen input parameters, predicting the sediment reduction rate, the sediment accumulation amount, and the sediment wear amount;

[0049] Step S103: Design a nitrogen input strategy based on the sediment reduction rate, sediment accumulation amount, sediment wear amount, composition parameters of the sediment, and structural parameters of the ceramic feed valve, in combination with the preset valve sealing reliability target and nitrogen consumption constraint conditions.

[0050] Step S104: Control the ceramic feed valve and the nitrogen input system according to the nitrogen input strategy to clean the sediment.

[0051] This ceramic feed valve control method calculates the sediment reduction rate, sediment accumulation amount, and sediment wear amount through a preset sediment reduction rate model, a preset dynamic sediment accumulation model, and a preset sediment wear model, and designs a nitrogen input strategy to control the ceramic feed valve and the nitrogen input system to clean the sediment, solving the problem that when using a ceramic feed valve in the coking production process, the coking sediment generated due to the sealing surface gap of the ceramic feed valve can cause valve damage and affect production efficiency. It can dynamically adjust the nitrogen input according to the operating state of the ceramic feed valve and the sediment situation to effectively reduce sediment accumulation, achieving effective control of the ceramic feed valve.

[0052] Specifically, the nitrogen input system is pre-set opposite the ceramic feed valve so that the nitrogen output by the nitrogen input system can act on the ceramic feed valve.

[0053] Specifically, in step S101, the operating parameters of the ceramic feed valve and the nitrogen input parameters of the nitrogen input system are obtained. Among them, the operating parameters include valve opening degree of the ceramic feed valve, size of the sealing surface gap, flow rate of the mixed gas of gas and pulverized coal, valve inlet pressure, valve outlet pressure (i.e., the internal pressure of the carbonization chamber), valve temperature, valve opening time (i.e., the time when the mixed gas is introduced), and valve closing time (i.e., the time interval when the mixed gas is introduced), etc., which are parameters that can reflect the operating state of the valve. The nitrogen input parameters can include nitrogen input pressure, nitrogen input time, and nitrogen input frequency, etc., which are parameters that can reflect the operating state of the nitrogen input system.

[0054] Specifically, in step S102, the operating parameters and nitrogen input parameters are input into a preset sediment reduction rate model, a preset dynamic sediment accumulation model, and a preset sediment wear model to calculate the predicted sediment reduction rate (the sediment reduction rate is the efficiency of purging the sediment by the nitrogen output from the nitrogen input system to remove the sediment), sediment accumulation amount, and sediment wear amount (the sediment wear amount is the sediment wear amount caused by the friction of the ceramic valve on the sediment during opening and closing). Among them, the preset sediment reduction rate model is specifically:

[0055] ;

[0056] Among them, is the sediment reduction rate; is the nitrogen purging efficiency coefficient, calibrated through experiments or CFD (Computational Fluid Dynamics) simulations; is the nitrogen input pressure; is the internal pressure of the carbonization chamber; represents the nitrogen input pressure and the internal pressure of the carbonization chamber the maximum value between the difference and 0, when the sediment reduction rate is 0 (i.e., ineffective purging). Therefore, to ensure the sediment cleaning effect (i.e., ensure the sediment reduction rate is greater than 0), it is necessary to ensure that the nitrogen input pressure is greater than the internal pressure of the carbonization chamber ; is the nitrogen input time; is the size of the sealing surface gap of the ceramic feed valve; is the natural exponential function, representing the exponential function with the natural constant e as the base, representing e to the power.

[0057] The preset dynamic sediment accumulation model is specifically:

[0058] ;

[0059]

[0060] wherein, is the sediment generation amount during a single valve operation; is the deposition rate without nitrogen injection, which can be calculated through experiments or on-site data; is the valve closing time; is the sediment accumulation amount; n is the total number of valve operation cycles; i is the number of the i-th valve operation.

[0061] The preset sediment wear model is specifically:

[0062] ;

[0063] wherein, is the sediment wear amount; is the wear coefficient, reflecting the wear ability of the sediment on the valve material; is the wear cycle coefficient, indicating the influence of the valve opening and closing times on wear. Among them, the wear coefficient and the wear cycle coefficient can be calculated through experiments or on-site data.

[0064] Specifically, in step S103, according to the sediment reduction rate, sediment accumulation amount, sediment wear amount, as well as the composition parameters of the sediment and the structural parameters of the ceramic feed valve, combined with the preset valve sealing reliability target and nitrogen consumption constraint conditions, design a nitrogen input strategy, including:

[0065] Obtain the composition parameters of the sediment and the structural parameters of the ceramic feed valve;

[0066] According to the composition parameters and structural parameters, combined with the preset valve sealing reliability target and nitrogen consumption constraint conditions, construct a preliminary nitrogen input strategy;

[0067] Based on the sediment reduction rate, sediment accumulation amount, and sediment wear amount, optimize the preliminary nitrogen input strategy to obtain the nitrogen input strategy.

[0068] In step S103, obtain the composition parameters of the sediment and the structural parameters of the ceramic feed valve. Among them, the composition parameters are parameters such as the tar content and ash content in the sediment that can characterize the sediment characteristics, and the structural parameters include the sealing surface gap distribution or valve material, etc., that can characterize the structure of the ceramic feed valve.

[0069] Specifically, in step S103, according to the composition parameters and structural parameters, combined with the preset valve sealing reliability target and nitrogen consumption constraint conditions, construct a preliminary nitrogen input strategy, including:

[0070] According to the composition parameters, determine the material properties of the sediment;

[0071] Extract the sealing surface gap distribution of the ceramic feed valve from the structural parameters;

[0072] Based on the material properties and the sealing surface gap distribution, combined with the preset valve sealing reliability target and nitrogen consumption constraint conditions, construct the preliminary nitrogen input strategy.

[0073] In step S103, by analyzing the composition parameters of the sediment, such as through the tar content, determine the material properties such as the viscosity and hardness of the sediment. For example, if the tar component in the sediment accounts for a relatively high proportion, the sediment may exhibit a relatively high viscosity and a relatively low hardness. When the sediment viscosity is relatively high, a relatively high nitrogen input pressure is required to effectively remove it. Among them, the material properties of the sediment can be obtained by means of experimental tests, theoretical analysis, or empirical data, etc. Or, the material properties of the sediment are determined by means of component analysis methods such as spectroscopic analysis and chromatographic analysis, combined with physical property test methods such as rheological tests and hardness tests. Thus, accurate sediment material property parameters can be obtained, providing a reliable basis for the construction of the subsequent nitrogen input strategy.

[0074] By extracting the gap distribution of the sealing surface of the ceramic feed valve, it is possible to understand the areas where nitrogen is easy to enter and difficult to enter, and thus a more targeted nitrogen input strategy can be designed. For example, for areas with smaller gaps, the nitrogen input pressure can be appropriately increased or the nitrogen input time can be extended.

[0075] Specifically, in step S103, based on the material properties and the gap distribution of the sealing surface, combined with the preset valve sealing reliability target and the nitrogen consumption constraint condition, a preliminary nitrogen input strategy is constructed, including:

[0076] According to the preset valve sealing reliability target and the nitrogen consumption constraint condition, an initial preliminary nitrogen input strategy is constructed;

[0077] Based on the material properties and the gap distribution of the sealing surface, the nitrogen input pressure and the nitrogen input time in the initial preliminary nitrogen input strategy are optimized to obtain the preliminary nitrogen input strategy.

[0078] In step S103, the valve sealing reliability target is the sealing degree that the valve needs to achieve. For example, the valve sealing reliability target can be set to ensure that the valve has no leakage within a certain period of time. The nitrogen consumption constraint condition is the nitrogen consumption limit of the nitrogen input system. For example, the nitrogen consumption constraint condition can be set to that the nitrogen consumption of the nitrogen input system does not exceed a certain value.

[0079] Based on the valve sealing reliability target and the nitrogen consumption constraint condition, the initial nitrogen input pressure and the initial nitrogen input time are set as the initial preliminary nitrogen input strategy. For example, the initial nitrogen input pressure can be set to a lower pressure value, and the initial nitrogen input time can be set to a shorter time value to meet the basic sealing requirements and nitrogen consumption limit.

[0080] According to the material properties of the sediment and the gap distribution of the sealing surface of the ceramic feed valve, the nitrogen input pressure and the nitrogen input time in the initial preliminary nitrogen input strategy are optimized. For example, if the sediment is easy to clean and the sealing surface gap is large, the initial nitrogen input pressure can be appropriately reduced, and the initial nitrogen input time can be appropriately shortened; if the sediment is not easy to clean and the sealing surface gap is small, the initial nitrogen input pressure can be appropriately increased, and the initial nitrogen input time can be appropriately extended. Thus, by optimizing the nitrogen input pressure and the nitrogen input time, the preliminary nitrogen input strategy is constructed.

[0081] Specifically, in step S103, based on the sediment reduction rate, the sediment accumulation amount, and the sediment wear amount, the preliminary nitrogen input strategy is optimized to obtain the nitrogen input strategy, including:

[0082] When the sediment accumulation amount is greater than or equal to a preset accumulation threshold, increase the nitrogen input pressure of the nitrogen input system or extend the nitrogen input time of the nitrogen input system to increase the sediment reduction rate and sediment wear amount, thereby optimizing the preliminary nitrogen input strategy to obtain the nitrogen input strategy;

[0083] When the sediment accumulation amount is less than the preset accumulation threshold, determine whether the nitrogen input consumption of the nitrogen input system is greater than the preset nitrogen consumption threshold; if so, reduce the nitrogen input pressure of the nitrogen input system or shorten the nitrogen input time of the nitrogen input system to reduce the nitrogen consumption, thereby optimizing the preliminary nitrogen input strategy to obtain the nitrogen input strategy; if not, maintain the existing nitrogen input pressure and nitrogen input time to obtain the nitrogen input strategy.

[0084] In step S103, the sediment accumulation amount during the operation of the ceramic feed valve is monitored in real time. When the sediment accumulation amount reaches or exceeds the preset accumulation threshold, it indicates that there is more sediment accumulation in the valve. At this time, the control system can increase the nitrogen input pressure of the nitrogen input system or extend the nitrogen input time of the nitrogen input system. In this way, the nitrogen purging intensity is increased, thereby increasing the sediment reduction rate and sediment wear amount, achieving effective removal of sediment, and ensuring the sealing performance and operation reliability of the ceramic feed valve. Among them, the preset accumulation threshold can be set according to actual needs. For example, for a ceramic feed valve with a larger sealing surface gap, the sediment accumulation threshold can be appropriately increased; for a valve with higher sealing requirements, the threshold can be reduced.

[0085] When the sediment accumulation amount is lower than the preset accumulation threshold, it indicates that there is less sediment accumulation in the valve. At this time, further determine whether the nitrogen consumption of the nitrogen input system exceeds the preset nitrogen consumption threshold. If the nitrogen consumption is too high (i.e., exceeds the preset nitrogen consumption threshold), the nitrogen input pressure can be appropriately reduced or the nitrogen input time can be shortened so that the nitrogen consumption is less than or equal to the preset nitrogen consumption threshold to reduce nitrogen consumption and lower the operating cost. If the nitrogen consumption does not exceed the preset nitrogen consumption threshold, maintain the existing nitrogen input pressure and nitrogen input time to obtain the nitrogen input strategy. Among them, the preset nitrogen consumption threshold can be set according to actual needs.

[0086] For example, set the sediment accumulation threshold to 10 grams. During the operation of the valve, predict the sediment accumulation through a preset model. If the predicted sediment accumulation exceeds 10 grams, the control system determines that there is a large amount of sediment accumulation and needs to enhance the nitrogen purging effect. At this time, the control system can control the nitrogen input system to increase the nitrogen input pressure or extend the nitrogen input time. For example, increase the nitrogen input pressure from 0.2 MPa to 0.3 MPa, or extend the nitrogen input time from 5 seconds to 8 seconds. By increasing the nitrogen input pressure or extending the nitrogen input time, the scouring force of nitrogen on the sediment is enhanced, which can more effectively reduce sediment accumulation and accelerate sediment wear, thus ensuring the sealing performance of the valve. On the contrary, if the predicted sediment accumulation is less than 10 grams, the control system further evaluates the nitrogen consumption. Assume the preset nitrogen consumption threshold is 5 liters per minute. If the actual nitrogen consumption exceeds 5 liters per minute, the control system determines that the nitrogen consumption is high and there is a possibility of waste. To reduce nitrogen consumption, the control system can control the nitrogen input system to reduce the nitrogen input pressure or shorten the nitrogen input time. For example, reduce the nitrogen input pressure from 0.3 MPa to 0.25 MPa, or shorten the nitrogen input time from 8 seconds to 6 seconds. If the actual nitrogen consumption does not exceed 5 liters per minute, then maintain the existing nitrogen input pressure and nitrogen input time. By reducing the nitrogen input pressure or shortening the nitrogen input time, on the premise of ensuring the basic sediment removal effect, the nitrogen consumption can be effectively reduced, achieving the purpose of energy conservation and consumption reduction. In this way, the nitrogen input strategy can be adaptively adjusted according to the feedback of sediment accumulation and nitrogen consumption, making the nitrogen input control more refined and intelligent.

[0087] In practical applications, the optimal sediment accumulation threshold, nitrogen consumption threshold, and the adjustment range of nitrogen input pressure and nitrogen input time can be determined through experiments or simulation and other means.

[0088] Specifically, in step S104, according to the nitrogen input strategy, control the ceramic feed valve and the nitrogen input system to clean the sediment, including:

[0089] Control the nitrogen input system to execute the nitrogen input strategy to clean the sediment, and at the same time, obtain the real-time flow rate of the mixed gas of coal gas and pulverized coal when passing through the ceramic feed valve;

[0090] Adjust the valve opening of the ceramic feed valve to make the real-time flow rate tend to the preset coking production target flow rate.

[0091] In step S104, according to parameters such as the nitrogen input pressure and nitrogen input time in the nitrogen input strategy, drive the nitrogen input system to output nitrogen to clean the sediment of the ceramic feed valve. At the same time, the flow rate of the mixed gas of coal gas and pulverized coal is monitored in real time through a flow sensor installed downstream of the ceramic feed valve.

[0092] In practical applications, in the coking production task, according to the coking production plan and process parameters, a preset coking production target flow rate will be determined. The input of nitrogen will affect the flow rate of the mixed gas of gas and pulverized coal, that is, it will affect the input flow rate of the mixed gas. Therefore, in order to ensure the normal operation of the coking production task, it is necessary to adjust the valve opening of the ceramic feed valve to maintain the stable operation of the coking production process.

[0093] Specifically, in step S104, adjusting the valve opening of the ceramic feed valve to make the real-time flow rate tend to the preset coking production target flow rate includes:

[0094] Calculating the deviation value between the real-time flow rate and the preset coking production target flow rate;

[0095] Using the PID algorithm, based on the deviation value, adjusting the valve opening of the ceramic feed valve.

[0096] In step S104, the real-time flow rate is compared with the preset coking production target flow rate, and the deviation value between the two is calculated. This deviation value directly reflects the degree of deviation between the current flow rate and the target flow rate. Subsequently, the deviation value is input into a preset PID algorithm. The PID algorithm calculates the adjustment amount of the valve opening according to the magnitude and direction of the deviation value according to the set control law. The calculated adjustment amount of the valve opening is converted into a control signal and sent to the valve actuator of the ceramic feed valve. After receiving the control signal, the valve actuator drives the valve stem to act, precisely adjusting the valve opening of the ceramic feed valve, and the change of the valve opening will directly affect the flow rate of the mixed gas of gas and pulverized coal. If the real-time flow rate is too small, the PID algorithm will control the valve actuator to increase the valve opening, thereby increasing the flow rate; conversely, if the real-time flow rate is too large, the PID algorithm will control the valve actuator to decrease the valve opening, thereby reducing the flow rate. Through the above closed-loop control process, the real-time flow rate is continuously adjusted and finally stabilized near the preset coking production target flow rate, thus realizing the precise control of the flow rate and ensuring that the flow rate of the mixed gas of gas and pulverized coal meets the coking production target flow rate. Among them, the PID algorithm is an existing algorithm and will not be elaborated here.

[0097] In some alternative embodiments, a corresponding PID controller can be generated in advance according to the PID algorithm. After calculating the deviation value between the real-time flow rate and the preset coking production target flow rate, the PID controller will automatically adjust the valve opening of the ceramic feed valve to maintain the stable operation of the coking production process.

[0098] As can be seen from the above, the control method of the ceramic feed valve obtains the operating parameters of the ceramic feed valve and the nitrogen input parameters of the nitrogen input system, and based on the preset sediment reduction rate model, the preset dynamic sediment accumulation model, and the preset sediment wear model, combines the operating parameters and the nitrogen input parameters to predict the sediment reduction rate, the sediment accumulation amount, and the sediment wear amount. According to the sediment reduction rate, the sediment accumulation amount, the sediment wear amount, as well as the composition parameters of the sediment and the structural parameters of the ceramic feed valve, combines the preset valve sealing reliability target and the nitrogen consumption constraint condition to design a nitrogen input strategy. According to the nitrogen input strategy, it controls the ceramic feed valve and the nitrogen input system to clean the sediment. Thus, through the sediment reduction rate, the sediment accumulation amount, and the sediment wear amount calculated by the preset sediment reduction rate model, the preset dynamic sediment accumulation model, and the preset sediment wear model, it designs a nitrogen input strategy to control the ceramic feed valve and the nitrogen input system to clean the sediment, solving the problem that when using a ceramic feed valve in the coking production process, the coking sediment generated due to the sealing surface gap of the ceramic feed valve causes valve damage and affects the production efficiency. It can dynamically adjust the nitrogen input according to the operating state of the ceramic feed valve and the sediment situation to effectively reduce sediment accumulation, achieving effective control of the ceramic feed valve.

[0099] Reference Figure 2 , this application provides a control device for a ceramic feed valve, which is used to control the ceramic feed valve, including:

[0100] An acquisition module 1, which is used to acquire the operating parameters of the ceramic feed valve and the nitrogen input parameters of the nitrogen input system;

[0101] A prediction module 2, which is used to predict the sediment reduction rate, the sediment accumulation amount, and the sediment wear amount based on the preset sediment reduction rate model, the preset dynamic sediment accumulation model, and the preset sediment wear model, and combines the operating parameters and the nitrogen input parameters;

[0102] A design module 3, which is used to design a nitrogen input strategy according to the sediment reduction rate, the sediment accumulation amount, the sediment wear amount, as well as the composition parameters of the sediment and the structural parameters of the ceramic feed valve, and combines the preset valve sealing reliability target and the nitrogen consumption constraint condition;

[0103] A control module 4, which is used to control the ceramic feed valve and the nitrogen input system according to the nitrogen input strategy to clean the sediment.

[0104] The ceramic feed valve control device designs a nitrogen input strategy based on the sediment reduction rate, sediment accumulation amount, and sediment wear amount calculated by a preset sediment reduction rate model, a preset dynamic sediment accumulation model, and a preset sediment wear model to control the ceramic feed valve and the nitrogen input system to clean the sediment, solving the problem that when using a ceramic feed valve in the coking production process, the coking sediment generated due to the sealing surface gap of the ceramic feed valve causes valve damage and affects production efficiency. The nitrogen input can be dynamically adjusted according to the operating state of the ceramic feed valve and the sediment situation to effectively reduce sediment accumulation, achieving effective control of the ceramic feed valve.

[0105] Specifically, the nitrogen input system is pre-set opposite to the ceramic feed valve so that the nitrogen output by the nitrogen input system can act on the ceramic feed valve.

[0106] Specifically, when the acquisition module 1 executes, it acquires the operating parameters of the ceramic feed valve and the nitrogen input parameters of the nitrogen input system. Among them, the operating parameters include the valve opening degree of the ceramic feed valve, the size of the sealing surface gap, the flow rate of the mixed gas of gas and pulverized coal, the valve inlet pressure, the valve outlet pressure (i.e., the internal pressure of the carbonization chamber), the valve temperature, the valve opening time (i.e., the mixed gas inlet time), and the valve closing time (i.e., the inlet time interval of the mixed gas), etc., which can reflect the operating state of the valve. The nitrogen input parameters can include the nitrogen input pressure, the nitrogen input time, and the nitrogen input frequency, etc., which can reflect the operating state of the nitrogen input system.

[0107] Specifically, when the prediction module 2 executes, it inputs the operating parameters and the nitrogen input parameters into a preset sediment reduction rate model, a preset dynamic sediment accumulation model, and a preset sediment wear model, and calculates the predicted sediment reduction rate (the sediment reduction rate is the efficiency of purging the sediment by the nitrogen output by the nitrogen input system to remove the sediment), the sediment accumulation amount, and the sediment wear amount (the sediment wear amount is the sediment wear amount caused by the friction of the ceramic valve on the sediment during opening and closing). Among them, the preset sediment reduction rate model is specifically:

[0108] ;

[0109] Among them, is the sediment reduction rate; is the nitrogen purging efficiency coefficient, calibrated by experiments or CFD (Computational Fluid Dynamics) simulations; is the nitrogen input pressure; is the internal pressure of the carbonization chamber; represents the nitrogen input pressure and the internal pressure of the carbonization chamber The maximum value between the difference value and 0, when is the case, the sediment reduction rate is 0 (i.e., ineffective sweeping and blowing). Therefore, in order to ensure the sediment cleaning effect (i.e., ensure that the sediment reduction rate is greater than 0), it is necessary to ensure that the nitrogen input pressure is greater than the internal pressure of the carbonization chamber ; is the nitrogen input time; is the size of the clearance of the sealing surface of the ceramic feed valve; is the natural exponential function, representing the exponential function with the natural constant e as the base, represents the power of e.

[0110] The preset dynamic sediment accumulation model is specifically:

[0111] ;

[0112]

[0113] Among them, is the sediment generation amount during a single operation of the valve; is the deposition rate without nitrogen injection, which can be calculated through experiments or on-site data; is the valve closing time; is the sediment accumulation amount; n is the total number of valve operation cycles; i is the number of the i-th valve operation.

[0114] The preset sediment wear model is specifically:

[0115] ;

[0116] Among them, is the sediment wear amount; is the wear coefficient, which reflects the wear ability of the sediment on the valve material; is the wear cycle coefficient, indicating the influence of the valve opening and closing times on wear. Among them, the wear coefficient and the wear cycle coefficient can be calculated through experiments or on-site data.

[0117] Specifically, when the design module 3 designs the nitrogen input strategy according to the sediment reduction rate, sediment accumulation amount, sediment wear amount, as well as the composition parameters of the sediment and the structural parameters of the ceramic feed valve, in combination with the preset valve sealing reliability target and nitrogen consumption constraint conditions, it executes:

[0118] Obtain the composition parameters of the sediment and the structural parameters of the ceramic feed valve;

[0119] Construct a preliminary nitrogen input strategy based on the component parameters and structural parameters, in combination with the preset valve sealing reliability target and nitrogen consumption constraint conditions;

[0120] Optimize the preliminary nitrogen input strategy based on the sediment reduction rate, sediment accumulation amount, and sediment wear amount to obtain the nitrogen input strategy.

[0121] When the design module 3 is executed, obtain the component parameters of the sediment and the structural parameters of the ceramic feed valve. Among them, the component parameters are parameters such as the tar content and ash content in the sediment that can characterize the sediment characteristics, and the structural parameters include the sealing surface gap distribution or valve material, etc., that can characterize the structure of the ceramic feed valve.

[0122] Specifically, when the design module 3 constructs a preliminary nitrogen input strategy according to the component parameters and structural parameters, in combination with the preset valve sealing reliability target and nitrogen consumption constraint conditions, it executes:

[0123] Determine the material properties of the sediment according to the component parameters;

[0124] Extract the sealing surface gap distribution of the ceramic feed valve from the structural parameters;

[0125] Based on the material properties and the sealing surface gap distribution, in combination with the preset valve sealing reliability target and nitrogen consumption constraint conditions, construct a preliminary nitrogen input strategy.

[0126] When the design module 3 is executed, by analyzing the component parameters of the sediment, such as through the tar content, determine the material properties such as the viscosity and hardness of the sediment. For example, if the tar component in the sediment accounts for a relatively high proportion, the sediment may exhibit a relatively high viscosity and a relatively low hardness. When the sediment viscosity is relatively high, a relatively high nitrogen input pressure is required to effectively remove it. Among them, the material properties of the sediment can be obtained by means of experimental tests, theoretical analysis, or empirical data, etc. Or, the material properties of the sediment are determined through component analysis means such as spectral analysis and chromatographic analysis, in combination with physical property test means such as rheological tests and hardness tests. Thus, accurate sediment material property parameters can be obtained, providing a reliable basis for the construction of the subsequent nitrogen input strategy.

[0127] By extracting the sealing surface gap distribution of the ceramic feed valve, the areas where nitrogen is easy to enter and difficult to enter can be understood, so that the nitrogen input strategy can be designed more targeted. For example, for areas with smaller gaps, the nitrogen input pressure can be appropriately increased or the nitrogen input time can be extended.

[0128] Specifically, when the design module 3 constructs a preliminary nitrogen input strategy based on the material properties and the sealing surface gap distribution, in combination with the preset valve sealing reliability target and nitrogen consumption constraint conditions, it executes:

[0129] Construct an initial preliminary nitrogen input strategy according to the preset valve sealing reliability target and nitrogen consumption constraint conditions;

[0130] Optimize the nitrogen input pressure and nitrogen input time in the initial preliminary nitrogen input strategy based on the material properties and the sealing surface gap distribution to obtain a preliminary nitrogen input strategy.

[0131] When the design module 3 executes, the valve sealing reliability target is the sealing degree that the valve needs to achieve. For example, the valve sealing reliability target can be set to ensure that the valve has no leakage within a certain period of time. The nitrogen consumption constraint condition is the nitrogen consumption limit of the nitrogen input system. For example, the nitrogen consumption constraint condition can be set so that the nitrogen consumption of the nitrogen input system does not exceed a certain value.

[0132] Based on the valve sealing reliability target and nitrogen consumption constraint conditions, set the initial nitrogen input pressure and the initial nitrogen input time as the initial preliminary nitrogen input strategy. For example, the initial nitrogen input pressure can be set to a relatively low pressure value, and the initial nitrogen input time can be set to a relatively short time value to meet the basic sealing requirements and nitrogen consumption limit.

[0133] Optimize the nitrogen input pressure and nitrogen input time in the initial preliminary nitrogen input strategy according to the material properties of the sediment and the sealing surface gap distribution of the ceramic feed valve. For example, if the sediment is easy to clean and the sealing surface gap is large, the initial nitrogen input pressure can be appropriately reduced, and the initial nitrogen input time can be appropriately shortened; if the sediment is not easy to clean and the sealing surface gap is small, the initial nitrogen input pressure can be appropriately increased, and the initial nitrogen input time can be appropriately extended. Thus, a preliminary nitrogen input strategy is constructed by optimizing the nitrogen input pressure and nitrogen input time.

[0134] Specifically, when the design module 3 optimizes the preliminary nitrogen input strategy based on the sediment reduction rate, sediment accumulation amount, and sediment wear amount to obtain the nitrogen input strategy, it executes:

[0135] When the sediment accumulation amount is greater than or equal to the preset accumulation threshold, increase the nitrogen input pressure of the nitrogen input system or extend the nitrogen input time of the nitrogen input system to increase the sediment reduction rate and sediment wear amount, thereby optimizing the preliminary nitrogen input strategy to obtain the nitrogen input strategy;

[0136] When the sediment accumulation amount is less than the preset accumulation threshold, it is judged whether the nitrogen input consumption of the nitrogen input system is greater than the preset nitrogen consumption threshold; if so, the nitrogen input pressure of the nitrogen input system is reduced or the nitrogen input time of the nitrogen input system is shortened to reduce the nitrogen consumption, thereby optimizing the preliminary nitrogen input strategy to obtain the nitrogen input strategy; if not, the existing nitrogen input pressure and nitrogen input time are maintained to obtain the nitrogen input strategy.

[0137] When the design module 3 is executed, the sediment accumulation amount during the operation of the ceramic feed valve is monitored in real time. When the sediment accumulation amount reaches or exceeds the preset accumulation threshold, it indicates that there is more sediment accumulation in the valve. At this time, the control system can increase the nitrogen input pressure of the nitrogen input system or extend the nitrogen input time of the nitrogen input system. In this way, the nitrogen purging intensity is increased, so as to increase the sediment reduction rate and the sediment wear amount, realize the effective removal of sediment, and ensure the sealing performance and operation reliability of the ceramic feed valve. Among them, the preset accumulation threshold can be set according to actual needs. For example, for a ceramic feed valve with a larger sealing surface gap, the sediment accumulation threshold can be appropriately increased; for a valve with higher sealing requirements, the threshold can be reduced.

[0138] When the sediment accumulation amount is lower than the preset accumulation threshold, it indicates that there is less sediment accumulation in the valve. At this time, it is further judged whether the nitrogen consumption of the nitrogen input system exceeds the preset nitrogen consumption threshold. If the nitrogen consumption is too high (that is, exceeds the preset nitrogen consumption threshold), the nitrogen input pressure can be appropriately reduced or the nitrogen input time can be shortened so that the nitrogen consumption is less than or equal to the preset nitrogen consumption threshold to reduce the nitrogen consumption and lower the operating cost. If the nitrogen consumption does not exceed the preset nitrogen consumption threshold, the existing nitrogen input pressure and nitrogen input time are maintained to obtain the nitrogen input strategy. Among them, the preset nitrogen consumption threshold can be set according to actual needs.

[0139] For example, set the sediment accumulation threshold to 10 grams. During the operation of the valve, predict the sediment accumulation through a preset model. If the predicted sediment accumulation exceeds 10 grams, the control system determines that there is a large amount of sediment accumulation and the nitrogen purge effect needs to be enhanced. At this time, the control system can control the nitrogen input system to increase the nitrogen input pressure or extend the nitrogen input time. For example, increase the nitrogen input pressure from 0.2 MPa to 0.3 MPa, or extend the nitrogen input time from 5 seconds to 8 seconds. By increasing the nitrogen input pressure or extending the nitrogen input time, the scouring force of nitrogen on the sediment is enhanced, which can more effectively reduce sediment accumulation and accelerate sediment wear, thus ensuring the sealing performance of the valve. Conversely, if the predicted sediment accumulation is less than 10 grams, the control system further evaluates the nitrogen consumption. Assume the preset nitrogen consumption threshold is 5 liters per minute. If the actual nitrogen consumption exceeds 5 liters per minute, the control system determines that the nitrogen consumption is relatively high and there is a possibility of waste. To reduce nitrogen consumption, the control system can control the nitrogen input system to reduce the nitrogen input pressure or shorten the nitrogen input time. For example, reduce the nitrogen input pressure from 0.3 MPa to 0.25 MPa, or shorten the nitrogen input time from 8 seconds to 6 seconds. If the actual nitrogen consumption does not exceed 5 liters per minute, the existing nitrogen input pressure and nitrogen input time are maintained. By reducing the nitrogen input pressure or shortening the nitrogen input time, on the premise of ensuring the basic sediment removal effect, the nitrogen consumption is effectively reduced, achieving the purpose of energy conservation and consumption reduction. In this way, the nitrogen input strategy can be adaptively adjusted according to the feedback of sediment accumulation and nitrogen consumption, making the nitrogen input control more refined and intelligent.

[0140] In practical applications, the optimal sediment accumulation threshold and nitrogen consumption threshold, as well as the adjustment range of nitrogen input pressure and nitrogen input time, can be determined through experiments or simulation and other means.

[0141] Specifically, when the control module 4 controls the ceramic feed valve and the nitrogen input system according to the nitrogen input strategy to clean the sediment, it executes:

[0142] Control the nitrogen input system to execute the nitrogen input strategy to clean the sediment, and at the same time, obtain the real-time flow rate of the mixed gas of coal gas and pulverized coal when passing through the ceramic feed valve;

[0143] Adjust the valve opening of the ceramic feed valve to make the real-time flow rate tend to the preset coking production target flow rate.

[0144] When the control module 4 executes, according to parameters such as the nitrogen input pressure and nitrogen input time in the nitrogen input strategy, drive the nitrogen input system to output nitrogen to clean the sediment of the ceramic feed valve. At the same time, the flow rate of the mixed gas of coal gas and pulverized coal is monitored in real time through a flow sensor installed downstream of the ceramic feed valve.

[0145] In practical applications, in the coking production task, a preset coking production target flow rate is determined according to the coking production plan and process parameters. The input of nitrogen affects the flow rate of the mixed gas of gas and pulverized coal, that is, it affects the input flow rate of the mixed gas. Therefore, in order to ensure the normal operation of the coking production task, it is necessary to adjust the valve opening of the ceramic feed valve to maintain the stable operation of the coking production process.

[0146] Specifically, when the control module 4 adjusts the valve opening of the ceramic feed valve to make the real-time flow rate tend to the preset coking production target flow rate, it performs:

[0147] Calculate the deviation value between the real-time flow rate and the preset coking production target flow rate;

[0148] Using the PID algorithm, based on the deviation value, adjust the valve opening of the ceramic feed valve.

[0149] When the control module 4 executes, it compares the real-time flow rate with the preset coking production target flow rate and calculates the deviation value between the two. This deviation value directly reflects the deviation degree between the current flow rate and the target flow rate. Subsequently, the deviation value is input into the preset PID algorithm. The PID algorithm calculates the adjustment amount of the valve opening according to the size and direction of the deviation value according to the set control law. The calculated adjustment amount of the valve opening is converted into a control signal and sent to the valve actuator of the ceramic feed valve. After receiving the control signal, the valve actuator drives the valve stem to act and precisely adjusts the valve opening of the ceramic feed valve. The change of the valve opening will directly affect the flow rate of the mixed gas of gas and pulverized coal. If the real-time flow rate is too small, the PID algorithm will control the valve actuator to increase the valve opening, thereby increasing the flow rate; conversely, if the real-time flow rate is too large, the PID algorithm will control the valve actuator to decrease the valve opening, thereby reducing the flow rate. Through the above closed-loop control process, the real-time flow rate is continuously adjusted and finally stabilized near the preset coking production target flow rate, thereby realizing the precise control of the flow rate and ensuring that the flow rate of the mixed gas of gas and pulverized coal meets the coking production target flow rate. Among them, the PID algorithm is an existing algorithm and will not be elaborated here.

[0150] In some alternative embodiments, a corresponding PID controller can be generated in advance according to the PID algorithm. After the control module 4 calculates the deviation value between the real-time flow rate and the preset coking production target flow rate, it drives the PID controller to automatically adjust the valve opening of the ceramic feed valve according to the deviation value to maintain the stable operation of the coking production process.

[0151] As can be seen from the above, the ceramic feed valve control device obtains the operating parameters of the ceramic feed valve and the nitrogen input parameters of the nitrogen input system, and based on the preset sediment reduction rate model, the preset dynamic sediment accumulation model, and the preset sediment wear model, combines the operating parameters and the nitrogen input parameters to predict the sediment reduction rate, the sediment accumulation amount, and the sediment wear amount. According to the sediment reduction rate, the sediment accumulation amount, the sediment wear amount, as well as the composition parameters of the sediment and the structural parameters of the ceramic feed valve, combines the preset valve sealing reliability target and the nitrogen consumption constraint condition to design a nitrogen input strategy. According to the nitrogen input strategy, it controls the ceramic feed valve and the nitrogen input system to clean the sediment; thus, by using the sediment reduction rate, the sediment accumulation amount, and the sediment wear amount calculated by the preset sediment reduction rate model, the preset dynamic sediment accumulation model, and the preset sediment wear model, it designs a nitrogen input strategy to control the ceramic feed valve and the nitrogen input system to clean the sediment, solving the problem that when using a ceramic feed valve in the coking production process, the coking sediment generated due to the sealing surface gap of the ceramic feed valve may cause valve damage and affect the production efficiency. It can dynamically adjust the nitrogen input according to the operating state of the ceramic feed valve and the sediment situation to effectively reduce sediment accumulation, achieving effective control of the ceramic feed valve.

[0152] Please refer to Figure 3 , Figure 3 FIG. [Reference numerals not provided in the original text] is a schematic structural diagram of an electronic device provided by an embodiment of the present application. The present application provides an electronic device, including: a processor 301 and a memory 302. The processor 301 and the memory 302 are interconnected and communicate with each other through a communication bus 303 and / or other forms of connection mechanisms (not marked). The memory 302 stores a computer program executable by the processor 301. When the electronic device runs, the processor 301 executes the computer program to execute the ceramic feed valve control method in any optional implementation manner of the above embodiment to achieve the following functions: obtaining the operating parameters of the ceramic feed valve and the nitrogen input parameters of the nitrogen input system, based on the preset sediment reduction rate model, the preset dynamic sediment accumulation model, and the preset sediment wear model, combining the operating parameters and the nitrogen input parameters to predict the sediment reduction rate, the sediment accumulation amount, and the sediment wear amount, according to the sediment reduction rate, the sediment accumulation amount, the sediment wear amount, as well as the composition parameters of the sediment and the structural parameters of the ceramic feed valve, combining the preset valve sealing reliability target and the nitrogen consumption constraint condition to design a nitrogen input strategy, and according to the nitrogen input strategy, controlling the ceramic feed valve and the nitrogen input system to clean the sediment.

[0153] An embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it executes the ceramic feed valve control method in any optional implementation manner of the above embodiment to achieve the following functions: obtaining the operating parameters of the ceramic feed valve and the nitrogen input parameters of the nitrogen input system, predicting the sediment reduction rate, sediment accumulation amount, and sediment wear amount based on a preset sediment reduction rate model, a preset dynamic sediment accumulation model, and a preset sediment wear model, combining the operating parameters and nitrogen input parameters, and designing a nitrogen input strategy according to the sediment reduction rate, sediment accumulation amount, sediment wear amount, the composition parameters of the sediment, and the structural parameters of the ceramic feed valve, in combination with a preset valve sealing reliability target and nitrogen consumption constraint conditions. According to the nitrogen input strategy, the ceramic feed valve and the nitrogen input system are controlled to clean the sediment. Among them, the storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, abbreviated as SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, abbreviated as EEPROM), erasable programmable read-only memory (Erasable Programmable Read Only Memory, abbreviated as EPROM), programmable read-only memory (Programmable Red-Only Memory, abbreviated as PROM), read-only memory (Read-Only Memory, abbreviated as ROM), magnetic memory, flash memory, a magnetic disk, or an optical disc.

[0154] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed mutual coupling or direct coupling or communication connection may be through some communication interfaces, and the indirect coupling or communication connection of the devices or units may be in an electrical, mechanical, or other form.

[0155] In addition, the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units. They can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0156] Furthermore, each functional module in various embodiments of the present application may be integrated together to form an independent part, or each module may exist alone, or two or more modules may be integrated to form an independent part.

[0157] In this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0158] The above are only the embodiments of the present application and are not used to limit the protection scope of the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A ceramic feed valve control method for controlling a ceramic feed valve, characterized in that: Includes steps: Obtaining the operating parameters of the ceramic feed valve and the nitrogen input parameters of the nitrogen input system; Based on a preset deposit reduction rate model, a preset dynamic deposit accumulation model and a preset deposit wear model, combined with the operating parameters and the nitrogen input parameters, the deposit reduction rate, the deposit accumulation amount and the deposit wear amount are predicted; Designing a nitrogen input strategy according to the deposit reduction rate, the deposit accumulation amount and the deposit wear amount, as well as the composition parameters of the deposit and the structural parameters of the ceramic feed valve, combined with the preset valve sealing reliability target and nitrogen consumption constraint conditions; According to the nitrogen input strategy, controlling the ceramic feed valve and the nitrogen input system to clean the deposits; According to the deposit reduction rate, the deposit accumulation amount and the deposit wear amount, as well as the composition parameters of the deposit and the structural parameters of the ceramic feed valve, combined with the preset valve sealing reliability target and nitrogen consumption constraint conditions, a nitrogen input strategy is designed, including: Obtaining composition parameters of the sediment and structural parameters of the ceramic feed valve; According to the composition parameters and the structural parameters, combined with the preset valve sealing reliability target and nitrogen consumption constraint conditions, a preliminary nitrogen input strategy is constructed; Based on the deposit reduction rate, the deposit accumulation amount and the deposit wear amount, optimizing the preliminary nitrogen input strategy to obtain a nitrogen input strategy; Based on the deposit reduction rate, the deposit accumulation amount and the deposit wear amount, the preliminary nitrogen input strategy is optimized to obtain a nitrogen input strategy, including: When the accumulated amount of deposits is greater than or equal to a preset accumulated amount threshold, increasing the nitrogen input pressure of the nitrogen input system or extending the nitrogen input time of the nitrogen input system to increase the deposit reduction rate and the deposit wear amount, thereby optimizing the preliminary nitrogen input strategy to obtain a nitrogen input strategy; When the accumulated amount of the deposits is less than the preset accumulated amount threshold, it is determined whether the nitrogen input consumption of the nitrogen input system is greater than the preset nitrogen consumption threshold; if so, the nitrogen input pressure of the nitrogen input system is reduced or the nitrogen input time of the nitrogen input system is shortened to reduce the nitrogen consumption, thereby optimizing the preliminary nitrogen input strategy to obtain a nitrogen input strategy; if not, the existing nitrogen input pressure and nitrogen input time are maintained to obtain a nitrogen input strategy; The preset sediment reduction rate model is specifically: ； in, is the sediment reduction rate; is the nitrogen purge efficiency coefficient; Input pressure for nitrogen; is the internal pressure of the carbonization chamber; Indicates nitrogen input pressure The pressure inside the carbonization chamber The maximum value between the difference of When the sediment reduction rate is 0, therefore, in order to ensure the sediment cleaning effect, the nitrogen input pressure must be guaranteed. Greater than the pressure inside the carbonization chamber ; Enter the time for nitrogen; is the gap size of the sealing surface of the ceramic feed valve; is the natural exponential function, which represents the exponential function with the natural constant e as the base. Indicates e Power; The preset dynamic sediment accumulation model is specifically: ； in, It is the amount of deposit generated during a single operation of the valve; is the deposition rate without nitrogen injection; is the valve closing time; is the accumulated amount of sediment; n is the total number of valve operation cycles; i is the number of valve operation times for the ith time; The preset deposit wear model is specifically: ； in, is the amount of deposit wear; is the wear coefficient, which reflects the wear capacity of the deposits on the valve material; is the wear cycle coefficient, which indicates the effect of valve opening and closing times on wear.

2. The ceramic feed valve control method according to claim 1, characterized in that: According to the composition parameters and the structural parameters, combined with the preset valve sealing reliability target and nitrogen consumption constraint conditions, a preliminary nitrogen input strategy is constructed, including: determining the material properties of the sediment according to the composition parameters; Extracting the sealing surface gap distribution of the ceramic feed valve from the structural parameters; Based on the material properties and the sealing surface gap distribution, combined with the preset valve sealing reliability target and nitrogen consumption constraint conditions, a preliminary nitrogen input strategy is constructed.

3. The ceramic feed valve control method according to claim 2, characterized in that: Based on the material properties and the sealing surface gap distribution, combined with the preset valve sealing reliability target and nitrogen consumption constraint conditions, a preliminary nitrogen input strategy is constructed, including: Construct an initial preliminary nitrogen input strategy based on preset valve seal reliability targets and nitrogen consumption constraints; Based on the material properties and the sealing surface gap distribution, the nitrogen input pressure and nitrogen input time in the initial preliminary nitrogen input strategy are optimized to obtain a preliminary nitrogen input strategy.

4. The ceramic feed valve control method according to claim 1, characterized in that: According to the nitrogen input strategy, the ceramic feed valve and the nitrogen input system are controlled to clean the deposits, including: Controlling the nitrogen input system to execute the nitrogen input strategy to clean the deposits while obtaining the real-time flow rate of the mixed gas of coal gas and coal powder when passing through the ceramic feed valve; The valve opening of the ceramic feed valve is adjusted so that the real-time flow rate tends to the preset coking production target flow rate.

5. The ceramic feed valve control method according to claim 4, characterized in that: Adjusting the valve opening of the ceramic feed valve so that the real-time flow rate tends to a preset coking production target flow rate includes: Calculating and obtaining a deviation value between the real-time flow rate and the preset coking production target flow rate; The valve opening of the ceramic feed valve is adjusted based on the deviation value using a PID algorithm.

6. A ceramic feed valve control device, used to control a ceramic feed valve, characterized in that: include: An acquisition module, used for acquiring operating parameters of the ceramic feed valve and nitrogen input parameters of the nitrogen input system; A prediction module, for predicting the deposit reduction rate, the deposit accumulation amount and the deposit wear amount based on a preset deposit reduction rate model, a preset dynamic deposit accumulation model and a preset deposit wear model, in combination with the operating parameters and the nitrogen input parameters; A design module, for designing a nitrogen input strategy according to the deposit reduction rate, the deposit accumulation amount and the deposit wear amount, as well as the composition parameters of the deposit and the structural parameters of the ceramic feed valve, combined with a preset valve sealing reliability target and nitrogen consumption constraint conditions; A control module, for controlling the ceramic feed valve and the nitrogen input system according to the nitrogen input strategy to clean the deposits; According to the deposit reduction rate, the deposit accumulation amount and the deposit wear amount, as well as the composition parameters of the deposit and the structural parameters of the ceramic feed valve, combined with the preset valve sealing reliability target and nitrogen consumption constraint conditions, a nitrogen input strategy is designed, including: Obtaining composition parameters of the sediment and structural parameters of the ceramic feed valve; According to the composition parameters and the structural parameters, combined with the preset valve sealing reliability target and nitrogen consumption constraint conditions, a preliminary nitrogen input strategy is constructed; Based on the deposit reduction rate, the deposit accumulation amount and the deposit wear amount, optimizing the preliminary nitrogen input strategy to obtain a nitrogen input strategy; Based on the deposit reduction rate, the deposit accumulation amount and the deposit wear amount, the preliminary nitrogen input strategy is optimized to obtain a nitrogen input strategy, including: When the accumulated amount of deposits is greater than or equal to a preset accumulated amount threshold, increasing the nitrogen input pressure of the nitrogen input system or extending the nitrogen input time of the nitrogen input system to increase the deposit reduction rate and the deposit wear amount, thereby optimizing the preliminary nitrogen input strategy to obtain a nitrogen input strategy; When the accumulated amount of the deposits is less than the preset accumulated amount threshold, it is determined whether the nitrogen input consumption of the nitrogen input system is greater than the preset nitrogen consumption threshold; if so, the nitrogen input pressure of the nitrogen input system is reduced or the nitrogen input time of the nitrogen input system is shortened to reduce the nitrogen consumption, thereby optimizing the preliminary nitrogen input strategy to obtain a nitrogen input strategy; if not, the existing nitrogen input pressure and nitrogen input time are maintained to obtain a nitrogen input strategy; The preset sediment reduction rate model is specifically: ； in, is the sediment reduction rate; is the nitrogen purge efficiency coefficient; Input pressure for nitrogen; is the internal pressure of the carbonization chamber; Indicates nitrogen input pressure The pressure inside the carbonization chamber The maximum value between the difference of When the sediment reduction rate is 0, therefore, in order to ensure the sediment cleaning effect, the nitrogen input pressure must be guaranteed. Greater than the pressure inside the carbonization chamber ; Enter the time for nitrogen; is the gap size of the sealing surface of the ceramic feed valve; is the natural exponential function, which represents the exponential function with the natural constant e as the base. Indicates e Power; The preset dynamic sediment accumulation model is specifically: ； in, It is the amount of deposit generated during a single operation of the valve; is the deposition rate without nitrogen injection; is the valve closing time; is the accumulated amount of sediment; n is the total number of valve operation cycles; i is the number of valve operation times for the ith time; The preset deposit wear model is specifically: ； in, is the amount of deposit wear; is the wear coefficient, which reflects the wear capacity of the deposits on the valve material; is the wear cycle coefficient, which indicates the effect of valve opening and closing times on wear.

7. An electronic device, characterized in that: It comprises a processor and a memory, wherein the memory stores a computer program executable by the processor, and when the processor executes the computer program, it runs the steps in the ceramic feed valve control method according to any one of claims 1 to 5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the ceramic feed valve control method according to any one of claims 1 to 5 are executed.

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