Energy-saving type concrete block brick autoclaving device

Abstract

The invention discloses an energy-saving type concrete block brick autoclaving device, and relates to the technical field of brick autoclaving devices. The device comprises an autoclave body, an autoclave cover, an inner sleeve, a steam pipe, a flow guide assembly, a control cabinet, a safety valve and an autoclave control system matched with a core mechanical structure. The steam pressure control system comprises a parameter sensing module, a dynamic matching control module, an execution driving module, a safety monitoring module and a data storage and tracing module. The parameter sensing module collects multi-point pressure, temperature and steam circulation rate data, the dynamic matching control module generates differential regulation and control instructions through an algorithm, the execution driving module accurately adjusts the steam input amount, the flow guide rate and cooling water input, and the safety monitoring module achieves whole-process safety protection. The device solves the problems of non-uniform steam distribution, energy consumption waste and quality fluctuation of a traditional device, and through cooperation of a mechanical structure and a control system, the product quality consistency is improved, the energy consumption is reduced, and stable and reliable operation is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of autoclaving devices for bricks, and more particularly to an energy-saving autoclaving device for concrete blocks. Background Technology

[0002] In the construction materials industry, concrete blocks have become one of the core wall materials for various building projects due to their high strength, high durability, and environmental friendliness and economy. Autoclaving, as a key process in block production, directly determines the structural strength, dimensional stability, and service life of the product. Its technological level and equipment performance have a decisive impact on production efficiency, product quality, and production costs. Therefore, high-performance autoclaving equipment has become a core requirement for block manufacturing enterprises.

[0003] Traditional autoclaves generally employ a "direct steam injection + natural diffusion" operating mode, which presents significant technical challenges: Firstly, uneven steam distribution within the autoclave leads to substantial temperature and pressure differences in different areas, resulting in inconsistent heating and stress on the brickwork blocks and significant fluctuations in product quality. Secondly, the natural diffusion mode results in low steam heat transfer efficiency, necessitating extended curing cycles to achieve uniform curing across the entire area, leading to substantial energy waste. With increasingly stringent energy conservation and environmental protection policies and rising market demands for consistent product quality, traditional equipment can no longer meet the demands for low-energy consumption and high-quality production. There is an urgent need to develop an energy-efficient autoclave that achieves uniform steam distribution and precise pressure-temperature matching to overcome this industry bottleneck. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an energy-saving autoclaving device for concrete blocks, which solves the problems of uneven steam distribution, energy waste, and quality fluctuations caused by dynamic mismatch between pressure and temperature in traditional devices.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an energy-saving concrete block autoclaving device, comprising an autoclave body, a lid at one end of the autoclave body, an inner sleeve fixedly connected inside by a support rod, a track assembly at the lower end of the inner wall of the inner sleeve, an axially extending steam pipe at the bottom end of the inner wall of the autoclave body, multiple steam ports extending into the inner sleeve on the steam pipe, a flow guiding assembly installed at one end of the inner sleeve, a control cabinet on the outer wall of the autoclave body, a safety valve at the top of the outer wall of the autoclave body, and an autoclaving control system adapted to the core mechanical structure. The autoclaving control system is electrically connected to the flow guiding assembly, the steam conveying unit of the steam pipe, and the control cabinet to achieve synergistic control of energy saving and improved autoclaving effect. The autoclaving control system includes: The parameter sensing module is used to collect pressure parameters, temperature parameters, and fluid flow parameters within the autoclaving area. The dynamic matching control module is connected to the parameter sensing module and has built-in algorithm logic with energy saving and steam pressure effect improvement as its core. It is used to analyze and process the collected parameters and output pressure-temperature matching control commands. The execution drive module is connected to the dynamic matching control module and the core mechanical structure, and is used to receive control commands and drive the mechanical structure to perform corresponding actions. The safety monitoring module, in conjunction with the parameter sensing module and the dynamic matching control module, is used to monitor safety parameters during the autoclaving process. When the parameters exceed the preset range, it triggers an early warning or emergency control command.

[0006] Preferably, the parameter sensing module includes multiple pressure sensors, temperature sensors, and airflow velocity sensors; The pressure sensor and temperature sensor are distributed at intervals along the axial and circumferential directions of the inner sleeve, and their detection ends extend into the autoclaving area to collect pressure and temperature data at different points. The airflow velocity sensor is installed inside the inner sleeve and is used to collect steam flow rate data; Both the pressure sensor and the temperature sensor establish a communication connection with the dynamic matching control module through the signal transmission unit.

[0007] Preferably, the dynamic matching control module includes a data preprocessing unit, a parameter analysis unit, and an instruction generation unit; The data preprocessing unit is used to perform noise reduction and normalization processing on the raw data collected by the parameter sensing module. The parameter analysis unit has a built-in pressure-temperature adaptation threshold model, which is used to determine the degree of matching between the current pressure and temperature. The instruction generation unit generates steam delivery rate control instructions and flow rate control instructions based on the matching degree analysis results.

[0008] Preferably, the flow guiding component in the core mechanical structure includes an axial flow fan and a drive motor. The flow guiding drive unit of the execution drive module is connected to the drive motor through a frequency conversion control circuit to achieve stepless adjustment of the drive motor speed.

[0009] Preferably, the security monitoring module includes a security parameter threshold storage unit, an anomaly judgment unit, and an emergency execution unit; The safety parameter threshold storage unit pre-stores pressure safety threshold, temperature safety threshold, and equipment operation safety parameter threshold; The anomaly detection unit compares the collected parameters with the preset threshold in real time. When the parameter exceeds the threshold, the emergency execution unit triggers the auxiliary pressure relief action of the safety valve, the steam conveying shutdown action, or the flow guiding component speed reduction action.

[0010] Preferably, the dynamic matching control module incorporates a pressure-temperature dynamic coupling algorithm, the algorithm comprising: Based on the thermodynamic properties of autoclaving curing of brick blocks, a dynamic pressure-temperature matching function is established. The function aims to achieve the optimal curing effect per unit energy consumption and clarifies the pressure and temperature adaptation relationship at different autoclaving stages. Based on the partition parameter data collected by the parameter sensing module, multiple control partitions are divided through cluster analysis. Differentiated control commands are generated for the pressure-temperature deviation values ​​of each partition to achieve precise matching between partitions.

[0011] Preferably, the dynamic matching control module further includes an adaptive learning unit; The adaptive learning unit is used to record the autoclaving parameters, energy consumption data and curing quality test results of different batches of brick blocks, and optimizes the parameter coefficients of the pressure-temperature dynamic matching function through machine learning algorithms.

[0012] Preferably, a connecting pipe is provided at the lower end of the outer wall of one section of the autoclave body, an L-shaped pipe is flanged at one end of the connecting pipe, a T-shaped pipe is flanged at one end of the L-shaped pipe, and an electrically controlled valve is flanged at the other two ends of the T-shaped pipe; the execution drive module also includes a cooling control drive unit. The cooling regulation drive unit is electrically connected to the electronically controlled valve tube and is used to adjust the opening of the electronically controlled valve tube according to the cooling regulation command output by the dynamic matching control module, control the input rate and input volume of cooling water, and realize the synergy between the cooling process after steam pressure and the energy-saving target.

[0013] Preferably, the autoclaving control system further includes a data storage and traceability module, which is connected to the dynamic matching control module and the parameter sensing module. It is used to store all parameter data, control commands and operation logs during the autoclaving process, and supports data traceability and analysis.

[0014] Preferably, the execution drive module includes a steam regulation drive unit and a flow guiding drive unit; The steam regulation drive unit is electrically connected to the steam delivery control valve of the steam pipe and is used to adjust the steam input according to the regulation command. The flow guiding drive unit is electrically connected to the drive motor of the flow guiding component and is used to adjust the output speed of the motor according to the control command, thereby changing the airflow disturbance rate of the axial flow fan.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This solution utilizes a combination of steam pipes and multiple steam inlets to evenly distribute steam to all areas of the inner sleeve, establishing a foundation for a uniform steam environment. The axial flow fan in the flow guiding component further accelerates steam circulation and diffusion, overcoming the limitations of natural diffusion. Simultaneously, the parameter sensing module of the autoclaving control system collects multi-point data in real time, dynamically matching the control module to generate differentiated control commands. This precisely adjusts the steam input and flow rate, achieving uniform steam distribution throughout the entire area. This ensures consistent heating and stress distribution across all parts of the brickwork, significantly improving the stability of core performance characteristics such as product strength and durability.

[0016] 2. The autoclaving control system of this solution incorporates a pressure-temperature dynamic coupling algorithm, establishing a matching function with the goal of achieving optimal curing effect per unit energy consumption, and clarifying the pressure-temperature adaptation relationship at different autoclaving stages. Through cluster analysis, control zones are divided, and precise control commands are generated for deviations in each zone. Combined with an adaptive learning unit, algorithm parameters are continuously optimized, ensuring that pressure and temperature are always in an optimal matching state, significantly improving steam heat transfer efficiency and shortening heating time. Simultaneously, the insulation effect of the inner sleeve reduces heat loss, and the cooling control drive unit precisely controls the cooling water input, avoiding resource waste and comprehensively reducing energy consumption during the autoclaving process.

[0017] 3. The safety monitoring module of this solution pre-stores multiple safety thresholds. The anomaly judgment unit compares the collected pressure, temperature and equipment operating parameters in real time. Once the threshold is exceeded, the emergency execution unit immediately triggers emergency actions such as auxiliary pressure relief, steam shutdown, flow diversion and speed reduction or equipment shutdown, forming a full-process safety protection. At the same time, the data storage and traceability module completely records the parameter data, control commands and operation logs of the steaming process, supports data traceability and analysis, facilitates timely investigation of potential hazards, provides data support for equipment maintenance and process optimization, and ensures long-term stable and reliable operation of the steaming operation.

[0018] In summary, this solution, through the coordinated design of mechanical structure optimization and autoclaving control system, addresses the technical pain points of traditional autoclaving devices from three core dimensions: uniform steam distribution, precise pressure and temperature control, and comprehensive safety monitoring. It achieves stable improvement in the quality of masonry blocks while significantly reducing energy consumption and production costs. Simultaneously, it establishes a comprehensive safety protection system, balancing product quality, energy efficiency, and operational safety. This provides an efficient, reliable, and economical solution for the autoclaving of concrete masonry blocks, demonstrating significant practical value and potential for wider application. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1This is a first-view schematic diagram of the overall structure proposed in this invention; Figure 2 This is a second-view schematic diagram of the overall structure proposed in this invention; Figure 3 This is a first-view schematic diagram of the overall structure of the inner sleeve proposed in this invention; Figure 4 This is a second-view schematic diagram of the overall structure of the inner sleeve proposed in this invention; Figure 5 This is the core control logic block diagram of the autoclaving control system proposed in this invention.

[0020] The numbers in the diagram are: 1. Autoclave body; 2. Autoclave lid; 3. Inner sleeve; 4. Steam pipe; 5. Steam port; 6. T-pipe; 7. Electrically controlled valve pipe; 8. Guide rail; 9. Axial flow fan; 10. Drive motor; 11. Control cabinet; 12. Safety valve. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] See Figures 1 to 5 An energy-saving concrete block autoclaving device of the present invention includes 1. an autoclave body 1, an autoclave body 1 with a lid 2 at one end, an inner sleeve 3 fixed inside the autoclave body 1 by a support rod, a track assembly at the lower end of the inner wall of the inner sleeve 3, a steam pipe 4 extending axially at the bottom end of the inner wall of the autoclave body 1, a plurality of steam ports 5 extending into the inner sleeve 3 on the steam pipe 4, a flow guiding assembly installed at one end of the inner sleeve 3, a control cabinet 11 on the outer wall of the autoclave body 1, and a safety valve 12 at the top of the outer wall of the autoclave body 1, with the air inlet end of the safety valve 12 extending into the interior of the autoclave body 1. The autoclave body 1 is composed of multiple welded cylinders. A fixed cover is welded to the end of the autoclave body 1 away from the cover 2. One end of the steam pipe 4 passes through the outer wall of the fixed cover and is fixedly connected to the first flange. A connecting pipe is provided at the lower end of the outer wall of one section of the autoclave body 1. An L-shaped pipe is connected to one end of the connecting pipe by a flange. A three-way pipe 6 is connected to one end of the L-way pipe by a flange. The other two ports of the three-way pipe 6 are connected to an electric control valve pipe 7 by flanges. Multiple water inlet holes are equidistantly opened on both sides of the inner wall of the inner sleeve 3. The track assembly includes support frames that are equidistantly fixed to the inner walls on both sides of the inner sleeve 3. Guide rails 8 are fixed to the top of both support frames. Multiple connecting rods are equidistantly fixed between the opposite surfaces of the two guide rails 8. A limit plate is fixed to one end of the guide rail 8. A spring telescopic rod is fixed to the limit plate. A buffer pad is fixed to the telescopic end of the spring telescopic rod. The flow guiding assembly includes an axial flow fan 9 installed at one end of the inner sleeve 3 near the fixed cover. A frame is bolted to the outer wall of the fixed cover, and a drive motor 10 with an output shaft coaxially fixed to the axial flow fan 9 is provided on the frame.

[0023] This invention also includes a steam pressure control system adapted to the core mechanical structure. The steam pressure control system is electrically connected to the flow guiding component, the steam delivery unit of the steam pipe 4, and the control cabinet 11 to achieve synergistic control of energy saving and improved steam pressure effect. The steam pressure control system includes: The parameter sensing module is used to collect pressure parameters, temperature parameters, and fluid flow parameters within the autoclaving area. The dynamic matching control module is connected to the parameter sensing module and has built-in algorithm logic with energy saving and steam pressure improvement as its core. It is used to analyze and process the collected parameters and output pressure-temperature matching control commands. The execution drive module is connected to the dynamic matching control module and the core mechanical structure, and is used to receive control commands and drive the mechanical structure to perform corresponding actions. The safety monitoring module, in conjunction with the parameter sensing module and the dynamic matching control module, is used to monitor safety parameters during the autoclaving process. When the parameters exceed the preset range, it triggers an early warning or emergency control command.

[0024] Specifically, the parameter sensing module includes multiple pressure sensors, temperature sensors, and airflow velocity sensors: The parameter sensing module consists of N pressure sensors (N≥4), M temperature sensors (M≥4), and K airflow velocity sensors (K≥2). All sensors are resistant to high temperature and high pressure, and are suitable for working environments with a temperature range of 100-200℃ and a pressure range of 0.8-1.6MPa inside the autoclave. The pressure sensor and temperature sensor are evenly divided into three monitoring areas (front end area, middle area, and rear end area) along the axial direction of the inner sleeve 3. At least two sensors are arranged in each area at equal angles along the circumference. The sensor probes extend into the autoclaving area through the pre-set sealing mounting holes in the inner sleeve 3. The vertical distance between the probes and the surface of the masonry bricks is 5-15cm to ensure that the collected data can accurately reflect the pressure and temperature status around the masonry bricks. The pressure sensor is used to collect instantaneous pressure data at each monitoring point in real time; the temperature sensor is used to collect instantaneous temperature data at each monitoring point in real time. The airflow velocity sensor is installed on the axial center line inside the inner sleeve 3, on the sensor mounting brackets in the front and rear regions respectively. The sensor detection direction is consistent with the steam flow direction, and it is used to collect the instantaneous flow rate data of steam in the vessel. Both the pressure sensor and the temperature sensor integrate a wired signal transmission unit (using the RS485 communication protocol). The signal transmission unit establishes a bidirectional communication connection with the signal interface of the dynamic matching control module through a shielded cable. The data transmission rate is no less than 9600bps, ensuring that the collected parameter data can be transmitted to the dynamic matching control module in real time without distortion.

[0025] Specifically, the dynamic matching control module includes a data preprocessing unit, a parameter analysis unit, and an instruction generation unit; The data preprocessing unit is used to perform noise reduction and normalization on the raw data collected by the parameter sensing module, specifically: A moving average filtering algorithm is used to smooth the raw pressure, temperature, and airflow velocity data. The filter window size is set to n data points, and the formula is as follows: ;in, For the i-th data point after filtering, The original data sequence is represented by n, which is the size of the filtering window. This formula is applicable to the noise reduction processing of the original data of pressure, temperature and airflow velocity, and is used to eliminate random interference caused by sensor measurement errors. The denoised data is then normalized using a min-max normalization method to map the data to the [0,1] interval, as shown in the formula. ;in, For the i-th data point after normalization, The original data after noise reduction. , These are the historical minimum and maximum values ​​of the parameter, respectively, to accommodate the differences in magnitude between different parameters and facilitate subsequent analysis and calculation; The parameter analysis unit incorporates a pressure-temperature adaptation threshold model. This model is based on the process requirements of autoclaving of concrete blocks and pre-stores pressure-temperature adaptation threshold ranges for different autoclaving stages (heating stage, isothermal and isobaric stage, and cooling stage). For the heating stage, the adaptation threshold range meets the following requirements: (a and b are stage adaptation coefficients, a>0), meaning that temperature increases linearly with pressure; for the isothermal and isobaric stage, the adaptation threshold range is... ( This represents the upper and lower limits of pressure during this phase. (This refers to the upper and lower limits of temperature for this stage); by comparing the current pressure data P and temperature data T of each region, the matching coefficient is calculated. ,in The current standard pressure and standard temperature are used; a preset matching judgment threshold Cth is set. When C≤Cth, the matching is considered good; when C>Cth, the matching is considered poor.

[0026] Based on the matching degree analysis results output by the parameter analysis unit, the instruction generation unit generates two types of control instructions: when the matching degree coefficient C≤Cth, an instruction to maintain the current state is generated; when C>Cth, if the deviation is caused by low pressure, an instruction to increase the steam delivery volume is generated; if the deviation is caused by high pressure, an instruction to decrease the steam delivery volume is generated; if the deviation is caused by uneven temperature distribution, an instruction to adjust the flow rate is generated. The instructions contain specific adjustment range parameters to ensure that the control action is precise and controllable.

[0027] Specifically, the execution drive module includes a steam regulation drive unit and a flow guiding drive unit; The steam control drive unit consists of a drive circuit, a power amplifier module, and a feedback detection module. Its signal input terminal is electrically connected to the command output terminal of the dynamic matching control module, and its signal output terminal is electrically connected to the steam delivery control valve (electromagnetic proportional valve) of steam pipe 4. After receiving the steam delivery control command from the dynamic matching control module, the steam control drive unit converts the command signal into a drive current signal (4-20mA standard current signal) for the control valve through the drive circuit. The power amplifier module amplifies the current signal to drive the valve core displacement of the steam delivery control valve, thereby adjusting the steam input. The feedback detection module collects the actual opening signal of the control valve in real time and feeds it back to the dynamic matching control module to form a closed-loop control, ensuring that the steam input is consistent with the control command. The flow guiding drive unit consists of a frequency conversion control circuit, a frequency adjustment module, and a speed detection module. Its signal input terminal is electrically connected to the command output terminal of the dynamic matching control module, and its signal output terminal is electrically connected to the drive motor 10 of the flow guiding component via the frequency conversion control circuit. After receiving the flow guiding rate adjustment command, the frequency adjustment module adjusts the output frequency (5-50Hz) according to the command requirements, thereby changing the output speed of the drive motor 10. The speed of the drive motor 10 and the output frequency satisfy... (n is the motor speed, f is the output frequency, s is the slip rate, and p is the number of motor pole pairs); The airflow disturbance rate of the axial fan 9 is positively correlated with the speed of the drive motor 10. The airflow disturbance rate can be precisely controlled by adjusting the speed of the drive motor 10. The speed detection module collects the actual speed signal of the drive motor 10 in real time and feeds it back to the dynamic matching control module to realize closed-loop control.

[0028] Specifically, the security monitoring module includes a security parameter threshold storage unit, an anomaly detection unit, and an emergency execution unit; Safety parameter threshold storage unit pre-stored pressure safety threshold (upper limit threshold) lower threshold Temperature safety threshold (upper limit threshold) lower threshold ) and equipment operating safety parameter thresholds (motor operating current threshold) Vibration threshold of axial flow fan operation Steam delivery control valve operating voltage threshold All thresholds can be modified and updated through the operation interface of the control cabinet (11), and the stored data can be retained for a long time after power failure; The anomaly detection unit receives pressure, temperature, and equipment operating parameter data transmitted from the parameter sensing module in real time via the signal acquisition interface. It then compares the acquired data with the corresponding thresholds pre-stored in the safety parameter threshold storage unit in real time: when pressure data... or Temperature data or If the equipment operating parameters exceed the corresponding threshold, it is determined to be an abnormal parameter; the abnormality judgment unit transmits the abnormality type (pressure abnormality, temperature abnormality, equipment operation abnormality) and abnormal parameter value to the emergency execution unit; After receiving the abnormal signal from the abnormality judgment unit, the emergency execution unit triggers the corresponding emergency action according to the abnormality type: when pressure When the pressure is high, the auxiliary pressure relief action of safety valve 12 is triggered, and a steam delivery shutdown command is generated to control the steam delivery control valve to close; when the pressure is high... If there are no other abnormalities, a steam delivery increase command is generated; if accompanied by temperature abnormalities, a safety warning is triggered first; when the temperature... When the flow guide component is decelerated, the cooling water input is opened by controlling the electronically controlled valve 7. When the equipment operating parameters are abnormal, the equipment shutdown command is triggered, and an audible and visual warning signal is issued through the control cabinet 11. The execution status of all emergency actions is fed back to the safety monitoring module in real time.

[0029] Specifically, the dynamic matching control module incorporates a pressure-temperature dynamic coupling algorithm, which includes: Based on the thermodynamic properties of autoclaved brick curing, a pressure-temperature dynamic matching function is established with the goal of achieving optimal curing effect per unit energy consumption. ; in, The objective function is denoted by (a larger value indicates a better matching effect). Here, Q represents the curing effect weighting coefficient, Q is the curing degree of the brick blocks, and E is the energy consumption per unit time. , This is the deviation penalty coefficient. Let be the optimal pressure value at time t. The optimal temperature value at time t is given. This function is applied to the entire autoclaving process. By calculating the target function value in real time, the pressure and temperature adaptation relationship of different autoclaving stages (heating, constant temperature and pressure, cooling) is clarified to ensure the best curing effect with the lowest energy consumption. Based on the pressure and temperature zoning parameter data collected by the parameter sensing module at each monitoring point, the K-means clustering analysis algorithm is used to divide the control zones into multiple zones. The number of clusters K is determined based on the length of the inner sleeve 3 and the distribution of monitoring points (K=3-5). The algorithm steps are as follows: Step 1: Randomly select parameter data from K monitoring points as initial cluster centers; Step 2: Calculate the Euclidean distance between the data at each monitoring point and each cluster center. ,in , The pressure and temperature values ​​for the cluster centers; Step 3: Assign each monitoring point to the nearest cluster center to form K control zones; Step 4: Recalculate the cluster centers of each partition (take the average pressure and temperature of all points within the partition). Repeat steps two through four until the cluster centers no longer change, thus completing the partitioning. For each control zone, calculate the pressure deviation value for that zone. ( (Average pressure of zones) and temperature deviation value ( Based on the average temperature of each zone, and according to the sign and absolute value of the deviation, differentiated steam delivery control commands and flow rate control commands are generated to achieve precise pressure-temperature matching for each zone.

[0030] Specifically, the dynamic matching control module also includes an adaptive learning unit; The adaptive learning unit connects with the dynamic matching control module, parameter sensing module, and external quality inspection equipment through a data interface. It records the autoclaving parameters (pressure, temperature, steam delivery, and flow rate at each stage), energy consumption data (total energy consumption throughout the autoclaving process), and curing quality test results (compressive strength σ and durability grade D) of each batch of bricks in real time. The recorded data of each batch is associated with a unique batch number, forming a complete historical database. The adaptive learning unit uses the gradient descent algorithm to optimize the parameter coefficients (η, λ, μ) of the pressure-temperature dynamic matching function. The optimization objective is to make the average objective function value of all batches in the historical database equal. The steps to maximize and optimize are as follows: Step 1, Initialize parameter coefficients ; Step 2: Calculate the partial derivatives of the objective function with respect to the coefficients of each parameter. ; Step 3, according to Update the parameter coefficients (α is the learning rate, 0 < α < 1); Step 4: Repeat steps 2-3 until the objective function value converges (the difference between the objective function values ​​of two adjacent iterations is less than 1). ); Through continuous iterative optimization, the parameter coefficients of the pressure-temperature dynamic matching function are constantly corrected, improving the adaptability of the function to the autoclaving process of different batches of masonry blocks, thereby improving the pressure-temperature matching accuracy and energy-saving effect.

[0031] Specifically, the execution drive module also includes a cooling regulation drive unit; The cooling regulation drive unit consists of an instruction parsing module, a valve drive module, and a flow detection module. Its signal input terminal is electrically connected to the instruction output terminal of the dynamic matching control module, and its signal output terminal is electrically connected to the electric ball valve of the electric control valve tube 7. The instruction parsing module is used to receive the cooling regulation instruction output by the dynamic matching control module and parse the cooling rate requirement and target temperature value contained in the instruction. The valve drive module outputs the corresponding drive signal according to the parsing result to control the opening degree of the electric ball valve. The flow detection module has a built-in flow sensor to collect the actual flow data of the cooling water in real time and feed it back to the dynamic matching control module. The cooling control drive unit, based on the cooling control command, controls the input rate and quantity of cooling water by adjusting the opening of the electronically controlled valve 7. The cooling water input rate and cooling rate satisfy... (k is the flow coefficient, specifically designed based on the vessel volume and cooling water temperature); When the actual cooling rate is greater than the required cooling rate, the opening of the electrically controlled valve 7 is reduced to decrease the cooling water input rate; when the actual cooling rate is less than the required cooling rate, the opening of the electrically controlled valve 7 is increased to increase the cooling water input rate; simultaneously, based on the real-time temperature data inside the autoclave, when the temperature drops to the target temperature value, the electrically controlled valve 7 is closed to stop the cooling water input, thus achieving synergy between the cooling process after autoclaving and the energy-saving target, and avoiding excessive consumption of cooling water.

[0032] Specifically, the autoclaving control system also includes a data storage and traceability module. The data storage and traceability module adopts a distributed storage architecture and establishes a two-way communication connection with the dynamic matching control module and parameter sensing module through a data bus. Data transmission adopts the TCP / IP protocol to ensure the stability and efficiency of data transmission. The module is also connected to the human-machine interface of the control cabinet 11, supporting data query and export. The data storage and traceability module stores the following data: all parameter data during the autoclaving process (real-time data and pre-processed data collected by pressure sensors, temperature sensors, and airflow velocity sensors, with a sampling frequency of 1 time / second), all control commands generated by the dynamic matching control module (command type, generation time, and execution parameters), and equipment operation logs (equipment start-up time, shutdown time, operating status of each component, and abnormal alarm records). All data is classified and stored according to batch number and timestamp, with a storage period of not less than 1 year. The data storage and traceability module supports querying corresponding data records by batch number, time range and other search conditions. The query results can be displayed in the human-machine interface of control cabinet 11 in the form of tables, curves and other forms, and can also be exported as an Excel file via USB interface. The module has built-in basic data analysis function, which can automatically calculate statistical indicators such as average energy consumption, autoclaving cycle and average pressure-temperature matching degree for each batch, providing data support for process optimization and equipment maintenance.

[0033] Specifically, the flow guiding components in the core mechanical structure include an axial flow fan 9 and a drive motor 10. The blades of the axial flow fan 9 are made of aviation aluminum alloy, which has high strength and low wind resistance characteristics. The number of blades is 4-6, and the rated air volume of the fan is not less than 1000m³ / h. The drive motor 10 is a three-phase asynchronous variable frequency motor with a rated power of 1.5-5.5kW and a rated speed of 1500-3000r / min, which has a wide range of stepless speed regulation capability. The current-guiding drive unit of the execution drive module is electrically connected to the drive motor 10 through the frequency conversion control circuit. The frequency conversion control circuit adopts an AC-DC-AC frequency conversion topology, with an input voltage of 380V three-phase AC power and an output frequency that can be continuously adjusted within the range of 5-50Hz, thereby realizing stepless adjustment of the speed of the drive motor 10 (adjustment range of 150-3000r / min). The steam flow rate of the axial flow fan 9 is linearly and positively correlated with the speed of the drive motor 10, as expressed by the following expression: (V is the steam flow rate, kn is the speed-flow coefficient, and n is the motor speed); By adjusting the speed of the drive motor 10 through the frequency conversion control circuit, the air volume output of the axial flow fan 9 can be precisely controlled, thereby achieving precise control of the steam flow rate with a control accuracy of ±0.1m / s, ensuring uniform steam distribution in the autoclave.

[0034] Working principle of the invention: When using this device, first connect one electrically controlled valve pipe 7 to a cooling water pipe and the other electrically controlled valve pipe 7 to a pressure relief drain pipe to complete the pipeline connection preparation.

[0035] Then, open the lid 2 at one end of the autoclave body 1, and push the curing trolley loaded with concrete blocks into the autoclave along the guide rail 8 of the lower end of the inner sleeve 3 track assembly until the trolley touches the buffer pad on the limit plate at one end of the guide rail 8. At this time, the spring telescopic rod plays a buffering role to prevent the trolley from having a hard collision with the limit plate and ensure that the trolley is parked smoothly.

[0036] After the trolley is parked, the autoclave cover 2 is closed, and the device is started through the control cabinet 11 on the outer wall of the autoclave body 1. Steam is introduced through the first flange at one end of the steam pipe 4, and then evenly injected into the inner sleeve 3 through multiple steam ports 5 equidistantly arranged on the top surface of the steam pipe 4, providing a basic steam environment for the autoclaving of the block bricks.

[0037] Simultaneously, the autoclaving control system starts working: the parameter sensing module collects pressure, temperature, and steam flow rate data at different points in the autoclaving area in real time through pressure sensors, temperature sensors, and airflow velocity sensors, and transmits the data to the dynamic matching control module; the dynamic matching control module performs noise reduction and normalization processing on the received raw data, and then judges the matching degree of the current pressure and temperature through the built-in pressure-temperature adaptation threshold model, and divides the control zone by combining the pressure-temperature dynamic coupling algorithm to generate differentiated steam delivery control instructions and flow rate control instructions; after the execution drive module receives the control instructions, the steam control drive unit adjusts the steam delivery control valve of the steam pipe 4 to accurately control the steam input, and the flow guide drive unit adjusts the speed of the drive motor 10 in the flow guide component through the frequency conversion control circuit, thereby changing the airflow disturbance rate of the axial flow fan 9, accelerating the flow and diffusion of steam inside the inner sleeve 3, and reducing heat loss in conjunction with the heat preservation effect of the inner sleeve 3, so that the steam quickly and evenly fills the entire space inside the vessel, avoiding local temperature differences and shortening the heating time.

[0038] During the steam pressing process, the safety monitoring module monitors the pressure, temperature data, and equipment operating parameters collected by the parameter sensing module in real time and compares them with pre-stored safety thresholds. If the parameters exceed the preset range, it will promptly trigger warnings or emergency actions, such as activating safety valve 12 to assist in pressure relief, shutting off steam delivery, or reducing the speed of the flow guiding components, to ensure the safe and stable operation of the steam pressing process. The data storage and traceability module synchronously stores the parameter data, control commands, and operating logs of the entire steam pressing process, providing support for subsequent traceability and analysis.

[0039] After steam curing is completed, the steam input is turned off. First, the pressure is released by controlling the electrically controlled valve 7 of the external pressure relief drain pipe through the control cabinet 11. After the pressure is released, cooling water is injected into the reactor through the electrically controlled valve 7 of the external cooling water pipe. The water inlet holes on both sides of the inner wall of the inner sleeve 3 allow the cooling water to circulate fully, achieving rapid cooling inside the reactor.

[0040] After cooling is completed, the cooling water is still discharged through the electrically controlled valve pipe 7 of the external pressure relief drain pipe. Finally, the kettle cover 2 is opened and the steam curing trolley is pushed out, and the entire steam curing operation process is completed.

[0041] In addition, the adaptive learning unit in the dynamic matching control module records the autoclaving parameters, energy consumption data and curing quality test results of each batch of brick blocks. Through machine learning algorithms, it continuously optimizes the parameter coefficients of the pressure-temperature dynamic matching function, providing a more accurate control basis for subsequent batches of autoclaving operations, and continuously improving the autoclaving effect and energy efficiency.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An energy-saving autoclaving device for concrete blocks, comprising an autoclave body (1), wherein one end of the autoclave body (1) is provided with an autoclave cover (2), and an inner sleeve (3) is fixed inside the autoclave body via a support rod. A track assembly is provided at the lower end of the inner wall of the inner sleeve (3). A steam pipe (4) extending axially is provided at the bottom end of the inner wall of the autoclave body (1). Multiple steam ports (5) extending into the inner sleeve (3) are provided on the steam pipe (4). A flow guiding assembly is installed at one end of the inner sleeve (3). A control cabinet (11) is provided on the outer wall of the autoclave body (1). A safety valve (12) is provided at the top of the outer wall of the autoclave body (1). The device is characterized in that… It also includes a steam pressure control system adapted to the core mechanical structure. The steam pressure control system is electrically connected to the flow guiding component, the steam conveying unit of the steam pipe (4), and the control cabinet (11) to achieve coordinated control of energy saving and steam pressure improvement. The steam pressure control system includes: The parameter sensing module is used to collect pressure parameters, temperature parameters, and fluid flow parameters within the autoclaving area. The dynamic matching control module is connected to the parameter sensing module and has built-in algorithm logic with energy saving and steam pressure effect improvement as its core. It is used to analyze and process the collected parameters and output pressure-temperature matching control commands. The execution drive module is connected to the dynamic matching control module and the core mechanical structure, and is used to receive control commands and drive the mechanical structure to perform corresponding actions. The safety monitoring module, in conjunction with the parameter sensing module and the dynamic matching control module, is used to monitor safety parameters during the autoclaving process. When the parameters exceed the preset range, it triggers an early warning or emergency control command.

2. The energy-saving autoclaving device for concrete blocks according to claim 1, characterized in that: The parameter sensing module includes multiple pressure sensors, temperature sensors, and airflow velocity sensors; The pressure sensor and temperature sensor are distributed at intervals along the axial and circumferential directions of the inner sleeve (3), and their detection ends extend into the steam pressure area to collect pressure data and temperature data at different points. The airflow velocity sensor is installed inside the inner sleeve (3) and is used to collect steam flow rate data; Both the pressure sensor and the temperature sensor establish a communication connection with the dynamic matching control module through the signal transmission unit.

3. The energy-saving autoclaving device for concrete blocks according to claim 2, characterized in that: The dynamic matching control module includes a data preprocessing unit, a parameter analysis unit, and an instruction generation unit; The data preprocessing unit is used to perform noise reduction and normalization processing on the raw data collected by the parameter sensing module. The parameter analysis unit has a built-in pressure-temperature adaptation threshold model, which is used to determine the degree of matching between the current pressure and temperature. The instruction generation unit generates steam delivery rate control instructions and flow rate control instructions based on the matching degree analysis results.

4. The energy-saving autoclaving device for concrete blocks according to claim 1, characterized in that: The flow guiding components in the core mechanical structure include an axial flow fan (9) and a drive motor (10). The flow guiding drive unit of the execution drive module is connected to the drive motor (10) through a frequency conversion control circuit to achieve stepless adjustment of the speed of the drive motor (10).

5. The energy-saving autoclaving device for concrete blocks according to claim 1, characterized in that: The security monitoring module includes a security parameter threshold storage unit, an anomaly judgment unit, and an emergency execution unit; The safety parameter threshold storage unit pre-stores pressure safety threshold, temperature safety threshold, and equipment operation safety parameter threshold; The anomaly judgment unit compares the collected parameters with the preset threshold in real time. When the parameter exceeds the threshold, the emergency execution unit triggers the auxiliary pressure relief action of the safety valve (12), the steam conveying shutdown action, or the flow guiding component speed reduction action.

6. The energy-saving autoclaving device for concrete blocks according to claim 2, characterized in that: The dynamic matching control module incorporates a pressure-temperature dynamic coupling algorithm, which includes: Based on the thermodynamic properties of autoclaving curing of brick blocks, a dynamic pressure-temperature matching function is established. The function aims to achieve the optimal curing effect per unit energy consumption and clarifies the pressure and temperature adaptation relationship at different autoclaving stages. Based on the partition parameter data collected by the parameter sensing module, multiple control partitions are divided through cluster analysis. Differentiated control commands are generated for the pressure-temperature deviation values ​​of each partition to achieve precise matching between partitions.

7. The energy-saving autoclaving device for concrete blocks according to claim 6, characterized in that, The dynamic matching control module also includes an adaptive learning unit; The adaptive learning unit is used to record the autoclaving parameters, energy consumption data and curing quality test results of different batches of brick blocks, and optimizes the parameter coefficients of the pressure-temperature dynamic matching function through machine learning algorithms.

8. The energy-saving autoclaving device for concrete blocks according to claim 1, characterized in that, The autoclave body (1) has a connecting pipe at the lower end of the outer wall of one section of the cylinder. One end of the connecting pipe is flanged and connected to an L-shaped pipe. One end of the L-shaped pipe is flanged and connected to a tee pipe (6). The other two ports of the tee pipe (6) are flanged and connected to electrically controlled valve pipes (7). The execution drive module also includes a cooling control drive unit. The cooling regulation drive unit is electrically connected to the electric control valve tube (7) and is used to adjust the opening of the electric control valve tube (7) according to the cooling regulation command output by the dynamic matching control module, control the input rate and input amount of cooling water, and realize the synergy between the cooling process after steam pressure and the energy-saving target.

9. The energy-saving autoclaving device for concrete blocks according to claim 1, characterized in that, The autoclaving control system also includes a data storage and traceability module, which is connected to the dynamic matching control module and the parameter sensing module. It is used to store all parameter data, control commands and operation logs during the autoclaving process, and supports data traceability and analysis.

10. An energy-saving autoclaving device for concrete blocks according to claim 4, characterized in that, The execution drive module includes a steam regulation drive unit and a flow guiding drive unit; The steam regulation drive unit is electrically connected to the steam delivery control valve of the steam pipe (4) and is used to adjust the steam input according to the regulation command; The flow guiding drive unit is electrically connected to the drive motor (10) of the flow guiding component, and is used to adjust the output speed of the motor (10) according to the control command, thereby changing the airflow disturbance rate of the axial flow fan (9).

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