Electric heating steam generator control system and using method

Abstract

The invention relates to the technical field of temperature control, in particular to an electric heating steam generator control system and a using method, and the system comprises an operation state monitoring module, a dynamic power distribution module, a temperature pressure compensation module, an abnormity monitoring and early warning module and an operation control optimization module. According to the method, by comprehensively mastering the multi-dimensional operation data of the steam system, the over-limit value of the steam temperature adjustment rate is effectively screened, the heating power requirement is accurately evaluated, adjustment lag is avoided, the dynamic compensation power interval adjustment ensures the steam supply stability, heat loss compensation is optimized, and the heat supply quality is improved; the efficient early warning system recognizes pipeline blockage and pressure abnormity, safety is improved, steam flow distribution is optimized, operation efficiency is improved, and reasonable utilization of energy is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature control, and in particular to an electric steam generator control system and a use method thereof. Background Art

[0002] The field of temperature control technology includes technical means to measure, adjust and maintain the stability of temperature variables. This technology involves multiple disciplines such as thermodynamics, automatic control, sensor measurement, etc., and is widely used in industrial production, environmental control, medical equipment and household appliances. In temperature control technology, common methods include sensor-based data acquisition, the application of control algorithms, and the adjustment of actuators, such as thermocouples, thermistors and other sensor elements for collecting temperature information, microprocessors or dedicated control chips for data processing, and electric heaters, refrigeration systems, etc. as the actuators for temperature adjustment. This technical field covers sub-directions such as constant temperature control, temperature compensation, and adaptive adjustment to ensure that the target environment or equipment operates within a predetermined temperature range.

[0003] Among them, the electric steam generator control system refers to a system used to control the operating state of the electric steam generator so that it can generate steam within the set temperature range. The system involves technical matters such as temperature detection, heating power adjustment, and water level management. Temperature detection usually uses thermocouples or thermistors to measure the internal temperature of the steam generator, and transmits the temperature data to the microprocessor for calculation and analysis. Heating power adjustment uses solid-state relays, thyristor rectifiers or pulse width modulation to control the power output of the electric heating element, thereby accurately controlling the steam temperature. Water level management uses liquid level sensors to monitor the water storage status, combined with solenoid valves or water pumps to adjust the water inlet to ensure that the steam generator can operate continuously and stably. The core technology of this system is to monitor the working parameters of the steam generator in real time, and dynamically adjust the heating power and water level according to temperature changes to ensure that the steam output meets the set requirements.

[0004] The existing technology has a relatively single monitoring dimension for the operating status of electric steam generators, and lacks in-depth analysis of parameters such as steam flow and pressure change rate, which makes it difficult to accurately match the heating power adjustment with the steam temperature adjustment requirements, and there are lags or excessive changes in temperature regulation. The power distribution method mostly adopts a fixed compensation mode, which is difficult to respond to changes in steam flow and temperature in real time, and the stability and response speed of steam supply are limited. In the process of steam transportation, the temperature lag factor of the high and low pressure ends is not fully considered, resulting in uneven temperature distribution in the heating area, affecting the thermal energy conversion efficiency of the steam user end. In terms of abnormal monitoring, the traditional method relies on a single pressure monitoring point, which cannot accurately identify the blockage trend in the pipeline and the abnormal valve opening. It is difficult for the heating system to issue an early warning before a failure occurs, which may lead to unstable operation or delayed fault handling. The heating control strategy lacks dynamic optimization means, and the adjustment of steam supply power mainly relies on fixed parameter settings, which is difficult to adapt to rapid changes in load, resulting in a decrease in heating efficiency and an increase in energy consumption under some working conditions. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an electric steam generator control system and a method of use.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: an electric steam generator control system comprises: The data acquisition submodule operation status monitoring module extracts equipment status data, calculates steam pressure and temperature adjustment rate, screens temperature adjustment rate exceeding limit value according to ratio, evaluates heating power adjustment demand, and generates steam generator operation status data; The dynamic power allocation module calculates the ratio of the steam flow rate increase rate to the steam temperature decrease rate based on the steam generator operation status data, selects the power compensation demand, quantifies the compensation power adjustment amount, and outputs the heating power allocation parameter; The temperature and pressure compensation module retrieves the steam temperature change rate and lag time based on the output heating power allocation parameter, calculates the steam transfer delay coefficient, selects the steam temperature adjustment compensation amount, corrects the pressure adjustment compensation value, and generates the temperature and pressure adjustment parameters; The abnormal monitoring and early warning module analyzes the pipeline pressure difference change rate based on the temperature and pressure adjustment parameters, screens the pipeline blockage judgment value and the pressure drop trend judgment value, analyzes the pipeline abnormal state, extracts the valve opening fluctuation rate, and generates steam heating abnormal early warning data.

[0007] As a further scheme of the present invention, the steam generator operation status data includes start and stop status, water level status, make-up water pump status, heating standby status, water heater operation status, steam flow, steam pressure, pressure change rate, temperature adjustment rate, temperature adjustment over-limit value, and power adjustment demand. The heating power allocation parameters include steam pressure change rate, steam flow adjustment rate, steam temperature adjustment rate, steam flow rise rate, steam temperature decrease rate, power compensation demand value, and dynamic compensation power interval adjustment amount. The temperature and pressure adjustment parameters include high-pressure end steam temperature change rate, low-pressure end steam temperature lag time, steam transfer delay coefficient, steam temperature adjustment compensation amount, steam flow trough area pressure gradient change rate, steam transmission path temperature change curve, steam transmission temperature deviation interval, and pressure regulation compensation value. The steam heating abnormality warning data includes the main steam pipeline inlet pressure, branch outlet pressure, pressure difference change rate, pipeline blockage judgment value, pressure drop trend judgment value, pipeline abnormal state, and valve opening fluctuation rate.

[0008] As a further solution of the present invention, the operation status monitoring module includes: Obtain the start and stop status of the electric steam generator, water level status, water supply pump start and stop status, heating standby status, and air source heat pump water heater operation status; collect steam flow, pressure, and temperature data; calculate the steam pressure change rate and steam temperature adjustment rate; and obtain the steam state change rate; The data analysis submodule calls the steam state change rate, identifies the ratio of the steam temperature adjustment rate to the steam pressure change rate, selects the steam temperature adjustment rate with the ratio exceeding the limit, calculates the corresponding steam temperature offset value, analyzes the degree of steam temperature offset based on the selected steam temperature adjustment rate and the steam pressure change, and obtains the steam temperature offset; The power adjustment evaluation submodule calls the steam temperature offset, calculates the start / stop status index of the water supply pump, analyzes the influence of the heating standby status on the steam temperature offset, and generates the steam generator operating status data by combining the current steam generator operating power and the heating standby status.

[0009] As a further solution of the present invention, the steam temperature offset value calculation formula is specifically: ; in, represents the calculated steam temperature offset value, Represents the steam temperature adjustment rate calculated at the current moment, Represents the ratio threshold of steam temperature adjustment rate to steam pressure change rate, represents the steam pressure change rate calculated at the current moment, Represents the time from the first sampling point to the The data of the sampling points are summed. Represents the absolute error value calculated from the ratio of the steam temperature adjustment rate to the steam pressure change rate threshold. Representative The rate of change of steam pressure at a time point, Represents the number of sampled data points in the time window used for calculation.

[0010] As a further solution of the present invention, the dynamic power allocation module includes: The ratio calculation submodule obtains the steam generator operation status data, calls the steam pressure change rate, the steam flow adjustment rate, and the steam temperature adjustment rate, calculates the ratio of the steam flow increase rate to the steam temperature decrease rate, and obtains the steam temperature flow ratio; The power demand screening submodule calls the steam temperature flow ratio, screens the power compensation demand values ​​whose ratios exceed the threshold, calculates the dynamic compensation power interval corresponding to the power compensation demand value, analyzes the corresponding relationship between the compensation power interval and the steam pressure change rate, and obtains the dynamic compensation power interval adjustment amount; The power parameter correction submodule calls the dynamic compensation power interval adjustment amount, combines the current heating power allocation parameter, calculates the corrected heating power allocation value, and outputs the heating power allocation parameter.

[0011] As a further solution of the present invention, the modified heating power distribution value calculation formula is specifically: ; in, Represents the corrected heating power distribution value, represents the current baseline heating power allocation value, Represents the adjustment coefficient, which is used to adjust the sensitivity of power. Represents the time from the first sampling point to the The data of the sampling points are summed. Representative The dynamic compensation power adjustment value at a time point, Represents the weight coefficient, which adjusts the relationship between the current heating power and the compensation value. Representative The current heating power value at a time point, represents another adjustment factor used to smooth the fluctuations of the corrected power, Represents the dynamic compensation power interval adjustment calculated at the current moment, Represents the heating power at the current moment, Represents the number of sampled data points in the time window used for calculation, Indicates taking the cube root of the difference between the compensation power and the current power.

[0012] As a further solution of the present invention, the temperature and pressure compensation module includes: The transfer delay calculation submodule obtains the heating power allocation parameter, calls the high-pressure end steam temperature change rate and the low-pressure end steam temperature lag time, calculates the steam transfer delay index, and obtains the steam transfer delay coefficient; The compensation amount screening submodule calls the steam transfer delay coefficient, screens the steam temperature adjustment compensation amount, analyzes the pressure gradient change rate in the steam flow valley area, calculates the temperature change interval value of the steam transmission path, evaluates the steam transmission temperature index based on the steam temperature adjustment compensation amount and the pressure gradient change rate, and obtains the steam transmission temperature deviation interval; The pressure regulation correction submodule calls the steam delivery temperature deviation interval, calculates the pressure regulation compensation value correction amount, and generates the temperature and pressure adjustment parameters in combination with the pressure regulation compensation value.

[0013] As a further solution of the present invention, the abnormal monitoring and early warning module includes: The pressure difference change calculation submodule obtains the temperature and pressure adjustment parameters, calls the main steam pipeline inlet pressure and the branch outlet pressure, calculates the pressure difference change rate between the two, screens the pressure difference change rate exceeding the limit value, and obtains the pressure difference change result; The pipeline abnormality analysis submodule calls the pressure difference change result, screens the pipeline blockage judgment value and the pressure drop trend judgment value, calculates the change rate of the pipeline blockage judgment value, evaluates the deviation degree of the pressure drop trend, analyzes the pipeline abnormal state, calls the valve opening data, calculates the valve opening fluctuation rate, evaluates the pipeline transportation stability based on the ratio of the fluctuation rate to the pressure drop trend change rate, and obtains the pipeline abnormal state parameters in combination with the pressure drop trend judgment value; The heating abnormality warning submodule calls the pipeline abnormal state parameters, calculates the impact of steam flow changes on pressure stability, screens abnormal state judgment signals, calculates heating abnormality level parameters, establishes abnormal warning trigger thresholds, and generates steam heating abnormality warning data in combination with pressure gradient change characteristics.

[0014] As a further solution of the present invention, the system further includes an operation control optimization module; The operation control optimization module calls the automatic control system to calculate the start and stop control parameters, measures the heating state adjustment value, and generates the electric steam generator operation control plan based on the steam heating abnormality warning data; The electric steam generator operation control scheme includes steam generator start and stop control parameters, steam supply power adjustment amount, electric steam generator heating state adjustment value, steam supply adjustment interval, and steam flow distribution optimization; The operation control optimization module includes: The start-stop control submodule obtains the abnormal warning data of steam heating, calls the electric steam generator automatic control system, calculates the start-stop control index of the steam generator, screens the start-stop control range, and obtains the start-stop control parameters of the steam generator; The power adjustment submodule calls the steam generator start and stop control parameters, calls the steam supply power adjustment amount, measures the electric steam generator heating state adjustment value, calculates the steam supply adjustment interval value, screens the power adjustment range based on the ratio of the steam supply adjustment interval to the heating state adjustment value, and obtains the steam supply adjustment interval in combination with the operating state; The flow optimization submodule calls the steam supply adjustment interval, analyzes the impact of the steam supply adjustment on the flow distribution, optimizes the steam delivery path, calculates the adjusted flow distribution value, and generates an electric steam generator operation control plan in combination with the power adjustment range.

[0015] A method for controlling an electric steam generator comprises the following steps: S1: Obtain the start and stop status, water level status, start and stop status of the water supply pump, heating standby status, and operating status of the air source heat pump water heater of the electric steam generator, call the data of the steam flow and pressure detection equipment, calculate the steam pressure change rate, calculate the steam temperature adjustment rate, calculate the ratio of the steam temperature adjustment rate to the steam pressure change rate, screen the steam temperature adjustment rate over-limit value, and obtain the steam temperature adjustment over-limit value; S2: Based on the steam temperature adjustment over-limit value, the steam pressure change rate, the steam flow rate adjustment rate, and the steam temperature adjustment rate are called to calculate the change ratio between the steam flow rate increase rate and the steam temperature decrease rate, screen the power compensation demand value, quantify the dynamic compensation power interval adjustment amount, correct the heating power allocation parameter, and obtain the heating power allocation adjustment amount; S3: Based on the heating power distribution adjustment amount, the high-pressure end steam temperature change rate and the low-pressure end steam temperature lag time are called to calculate the steam transfer delay coefficient, screen the steam temperature adjustment compensation amount, analyze the pressure gradient change rate in the steam flow valley area, calculate the steam transmission path temperature change curve, and obtain the temperature and pressure compensation parameters; S4: Based on the temperature and pressure compensation parameters, the main steam pipeline inlet pressure and the branch outlet pressure are called to calculate the pressure difference change rate, filter the pipeline blockage judgment value and the pressure drop trend judgment value, analyze the pipeline abnormal state, extract the valve opening fluctuation rate, and obtain the steam heating abnormal warning value; S5: Based on the abnormal warning value of steam heating, call the electric steam generator automatic control system, calculate the start and stop control parameters of the steam generator, call the steam supply power adjustment amount, calculate the heating state adjustment value of the electric steam generator, screen the steam supply adjustment interval, optimize the steam flow distribution, and obtain the electric steam generator control plan.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are: In the present invention, by comprehensively mastering the multi-dimensional operating data of the steam system, the over-limit value of the steam temperature adjustment rate is effectively screened, the heating power demand is accurately evaluated, the adjustment lag is avoided, the dynamic compensation power range is adjusted to ensure the stability of the steam supply, optimize the compensation of heat loss, improve the heating quality, and an efficient early warning system identifies pipeline blockages and abnormal pressures, improves safety, optimizes steam flow distribution, improves operating efficiency, and realizes rational use of energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a system flow chart of the present invention; Figure 2 It is a submodule flow chart of the present invention; Figure 3 The figure is a flow chart of the steps of the method of the present invention. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is described below in conjunction with the accompanying drawings.

[0020] In the embodiments of the present invention, words such as "exemplarily" and "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "example" in the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the word "example" is intended to present the concept in a specific way. In addition, in the embodiments of the present invention, the meaning expressed by "and / or" can be both, or it can be either of the two.

[0021] In the embodiments of the present invention, "image" and "picture" can sometimes be used interchangeably. It should be noted that when the difference between them is not emphasized, the meanings they intend to express are the same. "of", "corresponding, relevant" and "corresponding" can sometimes be used interchangeably. It should be noted that when the difference between them is not emphasized, the meanings they intend to express are the same.

[0022] In the embodiments of the present invention, sometimes a subscript such as W1 may be written as a non-subscript such as W1. When the difference is not emphasized, the meanings to be expressed are the same.

[0023] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0024] See also Figure 1 and Figure 2 , an electric steam generator control system comprises: The operation status monitoring module extracts the start and stop status of the electric steam generator, the water level status, the start and stop status of the water supply pump, the heating standby status, and the operation status of the air source heat pump water heater, retrieves the data of the steam flow and pressure detection equipment, and calculates the steam pressure change rate and the steam temperature adjustment rate. Based on the ratio of the steam temperature adjustment rate to the steam pressure change rate, the steam temperature adjustment rate exceeding the limit value is screened, the heating power adjustment demand is evaluated, and the steam generator operation status data is generated; The dynamic power allocation module calls the steam pressure change rate, steam flow adjustment rate, and steam temperature adjustment rate based on the steam generator operation status data, calculates the change ratio between the steam flow increase rate and the steam temperature decrease rate, selects the power compensation demand value, quantifies the dynamic compensation power interval adjustment amount, corrects the heating power allocation parameters, and outputs the heating power allocation parameters; Based on the heating power allocation parameters, the temperature and pressure compensation module retrieves the steam temperature change rate at the high-pressure end and the steam temperature lag time at the low-pressure end, calculates the steam transmission delay coefficient, selects the steam temperature adjustment compensation amount, analyzes the pressure gradient change rate in the steam flow valley area and the temperature change curve of the steam transmission path, evaluates the steam transmission temperature deviation range, corrects the pressure regulation compensation value, and generates the temperature and pressure adjustment parameters; The abnormal monitoring and early warning module adjusts the temperature and pressure parameters, calls the main steam pipeline inlet pressure and branch outlet pressure, calculates the pressure difference change rate, selects the pipeline blockage judgment value and the pressure drop trend judgment value, analyzes the pipeline abnormal state, extracts the valve opening fluctuation rate, and generates steam heating abnormal warning data; Based on the abnormal warning data of steam heating, the operation control optimization module calls the electric steam generator automatic control system, calculates the start and stop control parameters of the steam generator, retrieves the steam supply power adjustment, measures the heating state adjustment value of the electric steam generator, screens the steam supply adjustment interval, optimizes the steam flow distribution, and generates the electric steam generator operation control plan.

[0025] The steam generator operation status data includes the start and stop status, water level status, water supply pump status, heating standby status, water heater operation status, steam flow, steam pressure, pressure change rate, temperature adjustment rate, temperature adjustment over-limit value, power adjustment demand, the heating power allocation parameters include the steam pressure change rate, steam flow adjustment rate, steam temperature adjustment rate, steam flow increase rate, steam temperature decrease rate, power compensation demand value, dynamic compensation power interval adjustment amount, the temperature and pressure adjustment parameters include the high-pressure end steam temperature change rate, low-pressure end steam temperature lag time, steam transfer delay coefficient, steam temperature adjustment compensation amount, pressure gradient change rate in the steam flow valley area, steam transmission path temperature change curve, steam transmission temperature deviation range, pressure regulation compensation value; the steam heating abnormality warning data include the main steam pipeline inlet pressure, branch outlet pressure, pressure difference change rate, pipeline blockage judgment value, pressure drop trend judgment value, pipeline abnormal state, valve opening fluctuation rate; the electric steam generator operation control scheme includes steam generator start and stop control parameters, steam supply power adjustment amount, electric steam generator heating state adjustment value, steam supply adjustment range, and steam flow distribution optimization.

[0026] See also Figure 2 , the operation status monitoring module includes: The data acquisition submodule obtains the start and stop status of the electric steam generator, the water level status, the start and stop status of the water supply pump, the heating standby status, and the operating status of the air source heat pump water heater, collects steam flow, pressure, and temperature data, calculates the steam pressure change rate and the steam temperature adjustment rate, and obtains the steam state change rate; Get the start and stop status of the electric steam generator, call the steam generator start and stop control signal in turn, and judge whether the current steam generator is in operation by reading the on and off status of the control signal in real time. If the control signal is detected to be "on", record the start status, otherwise record the stop status. The water level status is obtained by reading the water level sensor signal. The water level sensor feeds back different electrical signals according to the liquid level height, corresponding to "low water level", "normal water level" and "high water level" respectively. The start and stop status of the make-up water pump is collected by reading the relay output signal. The make-up water pump works when the relay is energized and stops when the power is off. The sampling signal is periodically stored to record the start and stop changes of the make-up water pump. The collection of the heating standby status depends on the on and off status of the heating element. The power supply current of the heating element is detected. If the current is zero, it is judged that the heating is on. The thermal element is in standby mode. The operating status of the air source heat pump water heater is obtained through the water heater control module signal. The water heater start relay is read to see if it is in the energized state to determine whether it is running. The steam flow is measured by a flow meter. The flow meter converts the speed of steam through the flow sensor element into an electrical signal and outputs the corresponding flow value. The pressure data is obtained by a pressure sensor. The sensor measures the pressure change in the steam pipeline, outputs a standardized signal and converts it into pressure data. The temperature data is collected by a temperature sensor. The temperature sensor reads the temperature change in the steam pipeline and converts it into a corresponding digital signal. The steam temperature, pressure, and flow data are periodically stored through the data acquisition module. The method for calculating the steam pressure change rate is to divide the pressure value difference at adjacent moments by the time interval. The formula is: ,in and are the steam pressure at the current moment and the previous moment respectively, is the sampling time interval. The steam temperature adjustment rate is calculated in a similar way, using the temperature change at adjacent time points divided by the time interval. The formula is: ,in and They represent the steam temperature values ​​at the current moment and the previous moment respectively. After the steam state change rate is obtained, it is stored in the data recording module for subsequent analysis and call.

[0027] The data analysis submodule calls the steam state change rate, identifies the ratio of the steam temperature adjustment rate to the steam pressure change rate, selects the steam temperature adjustment rate with an over-limit ratio, calculates the corresponding steam temperature offset value, analyzes the degree of steam temperature offset based on the selected steam temperature adjustment rate and the steam pressure change, and obtains the steam temperature offset value; The specific calculation formula for steam temperature offset value is: ; in, represents the calculated steam temperature offset value, Represents the steam temperature adjustment rate calculated at the current moment, Represents the ratio threshold of steam temperature adjustment rate to steam pressure change rate, represents the steam pressure change rate calculated at the current moment, Represents the time from the first sampling point to the The data of the sampling points are summed. Represents the absolute error value calculated from the ratio of the steam temperature adjustment rate to the steam pressure change rate threshold. Representative The rate of change of steam pressure at a time point, Represents the number of sampled data points in the time window used for calculation: To calculate the steam temperature offset , it is necessary to determine the current steam temperature adjustment rate , steam pressure change rate , and the ratio threshold The formula for calculating the steam temperature offset value depends on the above variables and their values ​​for different time windows. The cumulative average error.

[0028] Suppose we collected the following real monitoring data: Degrees, indicating the steam temperature adjustment rate at the current moment. bar / min, represents the rate of change of steam pressure at the current moment. , which represents the ratio threshold of the steam temperature adjustment rate to the steam pressure change rate. This value is set based on the system's previous operating experience and engineering requirements.

[0029] Collect data over a period of time (assuming ), the steam temperature adjustment rate at each time point and the rate of change of steam pressure as follows: , , , , , , , , ,

[0030] Calculate the error value at each time point : , , , ,

[0031] Calculate the mean error value: ; Substitution The calculation formula is: ; The results show that the temperature adjustment rate of the current steam system deviates from the ideal adjustment model. The specific deviation is degrees, indicating that the actual temperature adjustment is slightly lower than expected, and it may be necessary to adjust the control strategy or conduct a system check to ensure the balance between steam supply and demand.

[0032] The power adjustment evaluation submodule calls the steam temperature offset, calculates the start and stop status index of the water supply pump, analyzes the impact of the heating standby state on the steam temperature offset, and generates the steam generator operating status data by combining the current steam generator operating power and the heating standby state; Call the steam temperature offset data, combine the start and stop status of the make-up water pump to calculate the start and stop status index of the make-up water pump, and define the start and stop frequency of the make-up water pump as ,in For the water supply pump The number of starts within the time period is calculated, and the influence of the heating standby state on the steam temperature offset is calculated. The correlation between the heating standby state and the steam temperature offset is calculated using statistical analysis methods. If the heating standby time Exceeding the set threshold , and the steam temperature offset Beyond normal range , it is determined that the heating standby state affects the steam temperature deviation. Based on the current steam generator operating power, the power adjustment demand is analyzed and the operating power adjustment step is set. If the steam temperature deviation is positive and the absolute value exceeds the set range, the operating power is reduced. If the steam temperature deviation is negative and the absolute value exceeds the set range, increase the operating power , and finally generates the steam generator operating status data and stores it in the system control module.

[0033] See also Figure 2 , the dynamic power allocation module includes: The ratio calculation submodule obtains the steam generator operation status data, calls the steam pressure change rate, steam flow adjustment rate, and steam temperature adjustment rate, calculates the ratio of the steam flow increase rate to the steam temperature decrease rate, and obtains the steam temperature flow ratio; After obtaining the steam generator operating status data, the steam pressure change rate, steam flow adjustment rate and steam temperature adjustment rate are called in sequence. First, to obtain the steam pressure change rate, the pressure sensor data in the steam pipeline is called to trace back the pressure values ​​at multiple moments from the current time point, calculate the pressure change at adjacent time points, and divide it by the corresponding time interval. Each calculated change rate data will be stored in the ratio calculation module for subsequent calls. If the pressure change rate at a certain moment is detected to be zero or abnormal, the data point will be marked as invalid and the calculation of the point will be skipped. The steam flow adjustment rate is obtained in a similar way. The steam flow data at the current time point is read through the flow meter, the change between the current flow and the flow at the previous moment is calculated, and the flow adjustment rate is calculated in combination with the time interval. At the same time, the system will identify the overall trend of the flow adjustment after comparing the data at multiple time points, and determine whether the flow is continuously rising, falling or fluctuating. If it is detected that the flow adjustment rate is zero or the change range is very small for multiple consecutive time points, the flow adjustment rate for this period is marked as abnormal. The steam temperature adjustment rate is calculated by reading the temperature sensor data, extracting the steam temperature values ​​at the current time and multiple historical times, calculating the temperature change at each time and combining the time interval to obtain the temperature adjustment rate, and setting the temperature reduction rate to a negative value. If the temperature adjustment rate at the current time point is abnormal, such as drastic temperature fluctuations or sudden changes exceeding the preset threshold, the data point is marked as abnormal and stored in the abnormal database. Finally, when calculating the ratio of the steam flow increase rate to the steam temperature decrease rate, the system takes a positive value for the flow adjustment rate and an absolute value for the temperature adjustment rate. If the temperature adjustment rate is zero, the ratio calculation is invalid, and the system automatically skips the data point and records the abnormal point in the data storage module for subsequent data analysis. Finally, the steam temperature flow ratio is obtained and stored in the ratio calculation module for subsequent use.

[0034] The power demand screening submodule calls the steam temperature flow ratio, screens the power compensation demand values ​​whose ratios exceed the threshold, calculates the dynamic compensation power interval corresponding to the power compensation demand value, analyzes the corresponding relationship between the compensation power interval and the steam pressure change rate, and obtains the dynamic compensation power interval adjustment amount; The steam temperature flow ratio data is called, the currently calculated ratio is compared with the set threshold range, the power compensation demand value exceeding the threshold is screened out, the historical data stored in the ratio calculation module is read, and the changing trend of the steam temperature flow ratio is analyzed. If the ratio deviates from the set threshold for multiple consecutive time points, the system records the changing trend and calculates the power compensation value required under the current operating conditions. The calculation of the power compensation demand value is based on the deviation degree of the steam temperature flow ratio. If the deviation is large, the power compensation demand value is increased accordingly. If the deviation is small, the power compensation demand value is reduced accordingly. After the calculation is completed, the system stores the compensation demand value in the data module and uses it for subsequent dynamic compensation power interval calculations. The power interval is calculated by multiplying the power compensation demand value by the adjustment coefficient, where the adjustment coefficient is calculated based on the steam temperature flow. The abnormal degree of the ratio is dynamically set. If the ratio is significantly higher than the set upper limit, the adjustment coefficient takes a lower value to reduce the compensation power. If the ratio is significantly lower than the set lower limit, the adjustment coefficient takes a higher value to increase the compensation power. After calculating the dynamic compensation power range, the system further analyzes the relationship between the power range and the steam pressure change rate, calls the pressure change rate data, and determines whether the current operating condition is in the low-pressure, medium-pressure or high-pressure range. If it is in the low-pressure range, the low-pressure compensation strategy is adopted to adjust the compensation power range to adapt to the needs of the low-pressure state. If it is in the medium-pressure range, the standard compensation strategy is adopted. If it is in the high-pressure range, the compensation power is appropriately reduced to prevent the steam system from overloading. Finally, the system calculates the dynamic compensation power range adjustment amount and stores it in the power parameter adjustment module for subsequent power allocation.

[0035] The power parameter correction submodule calls the dynamic compensation power interval adjustment amount, combines the current heating power allocation parameter, calculates the corrected heating power allocation value, and outputs the heating power allocation parameter; The corrected calculation formula for the heating power distribution value is: ; in, Represents the corrected heating power distribution value, represents the current baseline heating power allocation value, Represents the adjustment coefficient, which is used to adjust the sensitivity of power. Represents the time from the first sampling point to the The data of the sampling points are summed. Representative The dynamic compensation power adjustment value at a time point, Represents the weight coefficient, which adjusts the relationship between the current heating power and the compensation value. Representative The current heating power value at a time point, represents another adjustment factor used to smooth the fluctuations of the corrected power, Represents the dynamic compensation power interval adjustment calculated at the current moment, Represents the heating power at the current moment, Represents the number of sampled data points in the time window used for calculation, Indicates taking the cube root of the difference between the compensation and current power: This formula is used to calculate the corrected heating power distribution value. The specific calculation process is as follows: Basic heating power Real-time data acquisition directly provided by the control system of the steam generator, assuming its value is 1000kW.

[0036] Dynamic compensation power It is calculated from historical operating data and involves the power adjustment requirements for the past few time periods. For example, (5 sampling points), the specific values ​​are as follows: kW; kW; kW; kW; kW; Current heating power Also obtained from the system real-time monitoring data, assuming that the historical data is: kW; kW; kW; kW; kW; Weight coefficient Determined by system performance analysis, used to balance historical power with current demand, set to 1.0.

[0037] Adjustment factor and , according to the system's response sensitivity and stability requirements, assuming and .

[0038] Substituting these values ​​into the formula, the calculation process is as follows: ; ; ; The result shows that the corrected heating power has increased slightly, reflecting that the system has made a small adjustment to the base power according to the dynamic compensation power adjustment. This shows that the system has made slight optimization adjustments based on the actual operating conditions while maintaining the original heating power to cope with possible short-term power demand changes.

[0039] See also Figure 2 , the temperature and pressure compensation module includes: The transfer delay calculation submodule obtains the heating power allocation parameters, calls the high-pressure end steam temperature change rate and the low-pressure end steam temperature lag time, calculates the steam transfer delay index, and obtains the steam transfer delay coefficient; The high-pressure end steam temperature change rate and the low-pressure end steam temperature lag time are called in sequence. First, the heating power distribution parameter is read, the heating power at the current moment is extracted from the heating module of the steam generator, and the steam temperature data of the corresponding time period is matched to obtain the temperature change rate of the high-pressure end of the steam generator. The temperature change rate is calculated by the ratio of the high-pressure end temperature change amount and the time interval at adjacent moments, and stored in the data processing module. The calculation of the low-pressure end steam temperature lag time is based on the data of the pressure sensor and the temperature sensor. First, the high-pressure end steam temperature data is called to detect the temperature change trend, and then the temperature data of the same time period is detected at the low-pressure end to calculate the lag time of the temperature response, that is, to find the time alignment point of the high-pressure end temperature change and the low-pressure end temperature change, measure the time difference between the two, and store the time difference data. When calculating the steam transfer delay index, the high-pressure end temperature change rate and the low-pressure end temperature lag time are combined, and the steam transfer delay index is obtained by dividing the lag time by the high-pressure end temperature change rate, and the data of multiple time periods are smoothed to eliminate data noise, and finally the steam transfer delay coefficient is obtained and stored in the delay calculation module for subsequent use.

[0040] The compensation screening submodule calls the steam transfer delay coefficient, screens the steam temperature adjustment compensation, analyzes the pressure gradient change rate in the steam flow valley area, calculates the temperature change interval value of the steam transmission path, evaluates the steam transmission temperature index based on the steam temperature adjustment compensation and the pressure gradient change rate, and obtains the steam transmission temperature deviation interval; Compare the currently calculated delay coefficient with the set normal range, select the steam temperature adjustment compensation, read historical data, analyze the change trend of the delay coefficient, if the delay coefficient continues to exceed the set range at multiple time points, the system records the abnormal data and calculates the corresponding steam temperature adjustment compensation. When calculating the compensation, set the compensation intensity according to the size of the transmission delay coefficient. If the delay coefficient is large, the compensation amount increases, and if the delay coefficient is small, the compensation amount decreases. The calculated compensation amount is stored in the data module and used for subsequent steam transmission temperature evaluation. When analyzing the pressure gradient change rate in the steam flow valley area, call the flow The flow rate data is used to identify the flow valley section and calculate the pressure change rate in the section. If the pressure change rate is low, the section is marked as a low-speed pressure gradient area. If the pressure change rate is high, the section is marked as a high-speed pressure gradient area. Combined with the temperature change data of the steam transport path, the temperature change interval value is calculated. Based on the steam temperature adjustment compensation amount and the pressure gradient change rate, the system further evaluates the steam transport temperature index. If the compensation amount is high and the pressure gradient change rate is low, the temperature transport parameters are adjusted to ensure the rationality of the temperature regulation. Finally, the steam transport temperature deviation interval is obtained and stored in the data processing module.

[0041] The pressure regulation correction submodule calls the steam delivery temperature deviation interval, calculates the pressure regulation compensation value correction amount, and generates the temperature and pressure adjustment parameters in combination with the pressure regulation compensation value; First, compare the upper and lower limits of the temperature deviation range to determine whether the current temperature deviation exceeds the normal range. If the deviation exceeds the set range, calculate the pressure regulation compensation value correction, call the pressure regulation compensation value, and calculate the corrected pressure regulation compensation value according to the size of the temperature deviation range. If the temperature deviation is too large, increase the compensation value. If the temperature deviation is small, reduce the compensation value. The calculated correction amount is stored in the data module, and combined with the pressure regulation parameters of the current system, the temperature and pressure adjustment parameters are generated and stored in the system control module for subsequent steam transportation pressure and temperature regulation.

[0042] See also Figure 2 , the abnormal monitoring and early warning module includes: The pressure difference change calculation submodule obtains the temperature and pressure adjustment parameters, calls the main steam pipeline inlet pressure and branch outlet pressure, calculates the pressure difference change rate between the two, screens the pressure difference change rate exceeding the limit value, and obtains the pressure difference change result; First, the system extracts the real-time pressure data of the main steam pipeline inlet from the steam pipeline pressure sensor, and synchronously reads the outlet pressure data of the branch pipeline to calculate the instantaneous pressure difference between the inlet and the outlet. Subsequently, the system extracts the pressure difference values ​​at different time points in turn, and obtains the pressure difference change rate by dividing the pressure difference change between the two time points by the corresponding time interval. During the calculation process, if the inlet pressure or outlet pressure data is detected to be abnormal, such as no change or abnormal fluctuation of the pressure value at multiple consecutive time points, the system marks the data point as invalid and stores it in the abnormal data marking library. When filtering the pressure difference change rate exceeding the limit value, the system calls the set pressure difference change rate threshold. If the currently calculated pressure difference change rate is higher than the set upper limit or lower than the set lower limit, the system records the abnormal change rate and stores it in the abnormal data recording module. At the same time, the data at multiple consecutive time points are trend analyzed. If it is found that the pressure difference change rate exceeds the limit for a long time, the trend data is further recorded and the average rate of the trend change is calculated. Finally, the system stores the filtered pressure difference change rate data and uses it as the pressure difference change result for subsequent sub-modules to call.

[0043] The pipeline abnormality analysis submodule calls the pressure difference change result, screens the pipeline blockage judgment value and the pressure drop trend judgment value, calculates the change rate of the pipeline blockage judgment value, evaluates the deviation degree of the pressure drop trend, analyzes the pipeline abnormal state, calls the valve opening data, calculates the valve opening fluctuation rate, and evaluates the pipeline transportation stability based on the ratio of the fluctuation rate to the pressure drop trend change rate, combined with the pressure drop trend judgment value, and obtains the pipeline abnormal state parameters; First, the system extracts historical data and compares the current pipeline pressure difference change rate with the standard pressure difference rate range under normal operating conditions. If the pressure difference change rate increases abnormally, it is determined that there may be a risk of pipeline blockage. If the pressure difference change rate decreases abnormally, there may be pipeline leakage or unstable gas supply problems. The system sets the pipeline blockage judgment value and calculates the rate of change of the judgment value. It calls historical time period data to calculate the pipeline blockage judgment value at different times, and calculates the rate of change of the judgment value based on the changes before and after. If the rate of change continues to increase, it is considered that the pipeline blockage trend is increasing. If the rate of change continues to decrease, the risk of pipeline blockage is reduced. At the same time, the system analyzes the pressure drop trend, calculates its deviation, calls historical pressure data, analyzes the pressure change rate at multiple time points, and calculates its deviation value relative to the set standard pressure change trend. If the pressure drops If the trend deviates from the normal range, the trend is further marked as abnormal and stored in the data module. Subsequently, the system analyzes the abnormal state of the pipeline. Combined with the pipeline pressure drop trend and the change rate of the blockage judgment value, the system further evaluates the current operating state of the pipeline and calls the valve opening data. The valve opening data at the current moment is extracted from the steam pipeline control system, and the valve opening change value at the previous and next time points is calculated. The valve opening fluctuation rate is calculated. If the fluctuation rate is high and the pressure drop trend change rate is large, it indicates that the flow state inside the pipeline is unstable. If the fluctuation rate is low and the pressure drop trend change rate is small, the pipeline transportation state is relatively stable. Finally, the system evaluates the pipeline transportation stability based on the ratio of the valve opening fluctuation rate to the pressure drop trend change rate, combined with the pressure drop trend judgment value, and stores the evaluated pipeline abnormal state parameters for use by subsequent modules.

[0044] The heating abnormality warning submodule calls the pipeline abnormal state parameters, calculates the impact of steam flow changes on pressure stability, screens abnormal state judgment signals, calculates heating abnormality level parameters, establishes abnormal warning trigger thresholds, and generates steam heating abnormality warning data in combination with pressure gradient change characteristics; First, the system analyzes the impact of steam flow changes on pressure stability, extracts steam pipeline flow sensor data, calculates the change in steam flow at different time points, and analyzes flow fluctuation trends in combination with historical data. If the flow fluctuation is large, it may have a greater impact on pressure stability. If the flow fluctuation is small, the impact is weak. Subsequently, the system screens the abnormal state judgment signal, calls the set abnormal state threshold, and compares the current pipeline abnormal state parameter with the set standard value. If the current abnormal state parameter exceeds the set range, the abnormal state judgment signal is triggered and stored in the abnormal state recording module. Next, the system calculates the heating abnormal level parameters, calls historical data, and calculates the current abnormal state judgment signal. The deviation of the previous abnormal state relative to the historical average state, combined with the duration of the abnormal state, is used to divide the abnormal level. If the abnormal state lasts for a short time and the deviation is small, it is judged as a low-level abnormality. If it lasts for a long time and the deviation is large, it is judged as a high-level abnormality. Finally, the system establishes an abnormal warning trigger threshold, and combined with the pressure gradient change characteristics, the system calculates the pressure gradient change rate at different time points and analyzes the pressure change trend. If the current pressure gradient change exceeds the set normal range, the system adjusts the abnormal warning threshold to adapt to the changes under different working conditions. Finally, the system generates steam heating abnormal warning data and stores it in the warning system for use by the control module.

[0045] See also Figure 2 , the operation control optimization module includes: The start-stop control submodule obtains the abnormal warning data of steam heating, calls the electric steam generator automatic control system, calculates the steam generator start-stop control index, screens the start-stop control range, and obtains the steam generator start-stop control parameters; First, the steam generator automatic control system is called to extract the current operating status data, identify the heating pressure fluctuation, steam temperature abnormality or flow deviation in the abnormal warning data, and calculate the steam generator start-stop control index. The system calls historical data to analyze the start-stop status of the steam generator in the past period of time, and calculates the corresponding power demand changes. Combined with the steam temperature fluctuation range in the abnormal warning data, the temperature offset is calculated, and the start-stop control index interval is defined according to the temperature offset. If the temperature offset is small, the start-stop control adjustment range is reduced accordingly. If the temperature offset is large, the control range is expanded. Subsequently, the system screens the start-stop control range, calls the set start-stop threshold, and determines whether the current steam generator operation status needs to be adjusted. If the deviation value in the steam heating abnormal warning data exceeds the set normal operating range, and the pressure or temperature continues to be unstable, the system determines that the current state needs to be started and stopped, and combines the steam generator operation cycle to set the start-stop delay time. Finally, the steam generator start-stop control parameters are calculated and stored for subsequent sub-module calls.

[0046] The power adjustment submodule calls the steam generator start and stop control parameters, calls the steam supply power adjustment amount, measures the electric steam generator heating state adjustment value, calculates the steam supply adjustment interval value, and based on the ratio of the steam supply adjustment interval to the heating state adjustment value, screens the power adjustment range, and obtains the steam supply adjustment interval in combination with the operating state; First, retrieve the current steam supply power adjustment, extract the steam generator power distribution data, and compare the start-stop control parameters to determine whether the current power needs to be adjusted. When calculating the heating state adjustment value of the electric steam generator, the system calls historical data to calculate the heating state changes of the current steam generator under different temperature offset conditions. Combined with the current load demand, calculate the appropriate heating adjustment amount. If the current temperature offset is large, increase the power adjustment range. If the temperature offset is small, reduce the adjustment range. At the same time, calculate the steam supply adjustment interval value, combine the current steam supply and historical supply trends, set the adjustment range, and if the supply exceeds the expected range, appropriately shrink the adjustment. If the supply is lower than the demand, the adjustment interval is expanded. Subsequently, the system calculates the power adjustment range based on the ratio of the steam supply adjustment interval value to the heating state adjustment value. If the ratio is large, it indicates that the steam supply is highly dependent on the heating power and requires more precise power adjustment. If the ratio is small, the power adjustment range can be appropriately reduced. Combined with the operating status data of the steam generator, the system evaluates whether the current operating mode is suitable for power adjustment. If the current operating load is high and the pressure is stable, the power adjustment range is appropriately increased. If the operating load is low and the temperature fluctuates greatly, the power adjustment range is appropriately reduced. Finally, the steam supply adjustment interval is stored for subsequent sub-modules to call.

[0047] The flow optimization submodule calls the steam supply adjustment interval, analyzes the impact of steam supply adjustment on flow distribution, optimizes the steam delivery path, calculates the adjusted flow distribution value, and generates an electric steam generator operation control plan in combination with the power adjustment range; First, the influence of steam supply adjustment on flow distribution is analyzed, and the steam pipeline flow sensor data is extracted. The flow distribution before and after adjustment is compared, and the flow deviation before adjustment and the balance degree of flow after adjustment are calculated. If the flow distribution of each branch pipeline is more balanced after flow adjustment, the adjustment is judged to be reasonable, otherwise further optimization is required. When optimizing the steam transmission path, the system calls the steam pipeline flow data, analyzes the flow fluctuation of different pipelines, and sets the optimization target. If the flow load of a pipeline is too high, it is necessary to redistribute the steam flow direction to reduce the flow load of the pipeline. If the flow of a pipeline is low, the flow transmission is appropriately increased. When calculating the adjusted flow distribution value, the system recalculates the flow distribution ratio based on the current steam supply adjustment interval and the demand of each pipeline, and compares the flow balance before and after adjustment. If the flow balance is improved after adjustment, the optimized flow distribution value is stored. Combined with the power adjustment range, the system analyzes the influence of steam power adjustment on flow distribution. If the power adjustment range is large, the flow optimization plan needs to be appropriately adjusted to adapt to the power change. Finally, the electric steam generator operation control plan is generated and stored in the system control module for the steam generator to execute control instructions.

[0048] See also Figure 3 , a method for controlling an electric steam generator, comprising the following steps: S1: Obtain the start and stop status, water level status, start and stop status of the water supply pump, heating standby status, and operating status of the air source heat pump water heater of the electric steam generator, call the data of the steam flow and pressure detection equipment, calculate the steam pressure change rate, calculate the steam temperature adjustment rate, calculate the ratio of the steam temperature adjustment rate to the steam pressure change rate, screen the steam temperature adjustment rate over-limit value, and obtain the steam temperature adjustment over-limit value; S2: Based on the steam temperature adjustment over-limit value, call the steam pressure change rate, steam flow adjustment rate, and steam temperature adjustment rate, calculate the change ratio between the steam flow increase rate and the steam temperature decrease rate, screen the power compensation demand value, quantify the dynamic compensation power interval adjustment amount, correct the heating power allocation parameters, and obtain the heating power allocation adjustment amount; S3: Based on the heating power allocation adjustment, the high-pressure end steam temperature change rate and the low-pressure end steam temperature lag time are called to calculate the steam transfer delay coefficient, screen the steam temperature adjustment compensation amount, analyze the pressure gradient change rate in the steam flow valley area, calculate the steam transmission path temperature change curve, and obtain the temperature and pressure compensation parameters; S4: Based on the temperature and pressure compensation parameters, the main steam pipeline inlet pressure and branch outlet pressure are called to calculate the pressure difference change rate, screen the pipeline blockage judgment value and the pressure drop trend judgment value, analyze the pipeline abnormal state, extract the valve opening fluctuation rate, and obtain the steam heating abnormal warning value; S5: Based on the abnormal warning value of steam heating, call the electric steam generator automatic control system, calculate the start and stop control parameters of the steam generator, call the steam supply power adjustment amount, calculate the heating state adjustment value of the electric steam generator, screen the steam supply adjustment interval, optimize the steam flow distribution, and obtain the electric steam generator control plan.

[0049] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An electric steam generator control system, characterized in that: The system comprises: The data acquisition submodule operation status monitoring module extracts equipment status data, calculates steam pressure and temperature adjustment rate, screens temperature adjustment rate exceeding limit value according to ratio, evaluates heating power adjustment demand, and generates steam generator operation status data; The dynamic power allocation module calculates the ratio of the steam flow rate increase rate to the steam temperature decrease rate based on the steam generator operation status data, selects the power compensation demand, quantifies the compensation power adjustment amount, and outputs the heating power allocation parameter; The temperature and pressure compensation module retrieves the steam temperature change rate and lag time based on the output heating power allocation parameter, calculates the steam transfer delay coefficient, selects the steam temperature adjustment compensation amount, corrects the pressure adjustment compensation value, and generates the temperature and pressure adjustment parameters; The abnormal monitoring and early warning module analyzes the pipeline pressure difference change rate based on the temperature and pressure adjustment parameters, screens the pipeline blockage judgment value and the pressure drop trend judgment value, analyzes the pipeline abnormal state, extracts the valve opening fluctuation rate, and generates steam heating abnormal early warning data.

2. The electric steam generator control system according to claim 1, characterized in that: The steam generator operation status data includes start and stop status, water level status, make-up water pump status, heating standby status, water heater operation status, steam flow, steam pressure, pressure change rate, temperature adjustment rate, temperature adjustment over-limit value, and power adjustment demand. The heating power allocation parameters include steam pressure change rate, steam flow adjustment rate, steam temperature adjustment rate, steam flow rise rate, steam temperature decrease rate, power compensation demand value, and dynamic compensation power interval adjustment amount. The temperature and pressure adjustment parameters include high-pressure end steam temperature change rate, low-pressure end steam temperature lag time, steam transfer delay coefficient, steam temperature adjustment compensation amount, steam flow trough area pressure gradient change rate, steam transmission path temperature change curve, steam transmission temperature deviation interval, and pressure regulation compensation value. The steam heating abnormality warning data includes the main steam pipeline inlet pressure, branch outlet pressure, pressure difference change rate, pipeline blockage judgment value, pressure drop trend judgment value, pipeline abnormal state, and valve opening fluctuation rate.

3. The electric steam generator control system according to claim 1, characterized in that: The operation status monitoring module comprises: Obtain the start and stop status of the electric steam generator, water level status, water supply pump start and stop status, heating standby status, and air source heat pump water heater operation status; collect steam flow, pressure, and temperature data; calculate the steam pressure change rate and steam temperature adjustment rate; and obtain the steam state change rate; The data analysis submodule calls the steam state change rate, identifies the ratio of the steam temperature adjustment rate to the steam pressure change rate, selects the steam temperature adjustment rate with the ratio exceeding the limit, calculates the corresponding steam temperature offset value, analyzes the degree of steam temperature offset based on the selected steam temperature adjustment rate and the steam pressure change, and obtains the steam temperature offset; The power adjustment evaluation submodule calls the steam temperature offset, calculates the start / stop status index of the water supply pump, analyzes the influence of the heating standby status on the steam temperature offset, and generates the steam generator operating status data by combining the current steam generator operating power and the heating standby status.

4. The electric steam generator control system according to claim 3, characterized in that: The steam temperature offset value calculation formula is specifically: ； in, represents the calculated steam temperature offset value, Represents the steam temperature adjustment rate calculated at the current moment, Represents the ratio threshold of steam temperature adjustment rate to steam pressure change rate, represents the steam pressure change rate calculated at the current moment, Represents the time from the first sampling point to the The data of the sampling points are summed. Represents the absolute error value calculated from the ratio of the steam temperature adjustment rate to the steam pressure change rate threshold. Representative The rate of change of steam pressure at a time point, Represents the number of sampled data points in the time window used for calculation.

5. The electric steam generator control system according to claim 1, characterized in that: The dynamic power allocation module comprises: The ratio calculation submodule obtains the steam generator operation status data, calls the steam pressure change rate, the steam flow adjustment rate, and the steam temperature adjustment rate, calculates the ratio of the steam flow increase rate to the steam temperature decrease rate, and obtains the steam temperature flow ratio; The power demand screening submodule calls the steam temperature flow ratio, screens the power compensation demand values ​​whose ratios exceed the threshold, calculates the dynamic compensation power interval corresponding to the power compensation demand value, analyzes the corresponding relationship between the compensation power interval and the steam pressure change rate, and obtains the dynamic compensation power interval adjustment amount; The power parameter correction submodule calls the dynamic compensation power interval adjustment amount, combines the current heating power allocation parameter, calculates the corrected heating power allocation value, and outputs the heating power allocation parameter.

6. The electric steam generator control system according to claim 5, characterized in that: The corrected heating power distribution value calculation formula is specifically: ； in, Represents the corrected heating power distribution value, represents the current baseline heating power allocation value, Represents the adjustment coefficient, which is used to adjust the sensitivity of power. Represents the time from the first sampling point to the The data of the sampling points are summed. Representative The dynamic compensation power adjustment value at a time point, Represents the weight coefficient, which adjusts the relationship between the current heating power and the compensation value. Representative The current heating power value at a time point, represents another adjustment factor used to smooth the fluctuations of the corrected power, Represents the dynamic compensation power interval adjustment calculated at the current moment, Represents the heating power at the current moment, Represents the number of sampled data points in the time window used for calculation, Indicates taking the cube root of the difference between the compensation power and the current power.

7. The electric steam generator control system according to claim 1, characterized in that: The temperature and pressure compensation module comprises: The transfer delay calculation submodule obtains the heating power allocation parameter, calls the high-pressure end steam temperature change rate and the low-pressure end steam temperature lag time, calculates the steam transfer delay index, and obtains the steam transfer delay coefficient; The compensation amount screening submodule calls the steam transfer delay coefficient, screens the steam temperature adjustment compensation amount, analyzes the pressure gradient change rate in the steam flow valley area, calculates the temperature change interval value of the steam transmission path, evaluates the steam transmission temperature index based on the steam temperature adjustment compensation amount and the pressure gradient change rate, and obtains the steam transmission temperature deviation interval; The pressure regulation correction submodule calls the steam delivery temperature deviation interval, calculates the pressure regulation compensation value correction amount, and generates the temperature and pressure adjustment parameters in combination with the pressure regulation compensation value.

8. The electric steam generator control system according to claim 1, characterized in that: The abnormal monitoring and early warning module includes: The pressure difference change calculation submodule obtains the temperature and pressure adjustment parameters, calls the main steam pipeline inlet pressure and the branch outlet pressure, calculates the pressure difference change rate between the two, screens the pressure difference change rate exceeding the limit value, and obtains the pressure difference change result; The pipeline abnormality analysis submodule calls the pressure difference change result, screens the pipeline blockage judgment value and the pressure drop trend judgment value, calculates the change rate of the pipeline blockage judgment value, evaluates the deviation degree of the pressure drop trend, analyzes the pipeline abnormal state, calls the valve opening data, calculates the valve opening fluctuation rate, evaluates the pipeline transportation stability based on the ratio of the fluctuation rate to the pressure drop trend change rate, and obtains the pipeline abnormal state parameters in combination with the pressure drop trend judgment value; The heating abnormality warning submodule calls the pipeline abnormal state parameters, calculates the impact of steam flow changes on pressure stability, screens abnormal state judgment signals, calculates heating abnormality level parameters, establishes abnormal warning trigger thresholds, and generates steam heating abnormality warning data in combination with pressure gradient change characteristics.

9. The electric steam generator control system according to claim 1, characterized in that: The system also includes an operation control optimization module; The operation control optimization module calls the automatic control system to calculate the start and stop control parameters, measures the heating state adjustment value, and generates the electric steam generator operation control plan based on the steam heating abnormality warning data; The electric steam generator operation control scheme includes steam generator start and stop control parameters, steam supply power adjustment amount, electric steam generator heating state adjustment value, steam supply adjustment interval, and steam flow distribution optimization; The operation control optimization module includes: The start-stop control submodule obtains the abnormal warning data of steam heating, calls the electric steam generator automatic control system, calculates the start-stop control index of the steam generator, screens the start-stop control range, and obtains the start-stop control parameters of the steam generator; The power adjustment submodule calls the steam generator start and stop control parameters, calls the steam supply power adjustment amount, measures the electric steam generator heating state adjustment value, calculates the steam supply adjustment interval value, screens the power adjustment range based on the ratio of the steam supply adjustment interval to the heating state adjustment value, and obtains the steam supply adjustment interval in combination with the operating state; The flow optimization submodule calls the steam supply adjustment interval, analyzes the impact of the steam supply adjustment on the flow distribution, optimizes the steam delivery path, calculates the adjusted flow distribution value, and generates an electric steam generator operation control plan in combination with the power adjustment range.

10. A method for controlling an electric steam generator, characterized in that: According to an electric steam generator control system according to any one of claims 1 to 9, The following steps are involved: S1: Obtain the start and stop status, water level status, start and stop status of the water supply pump, heating standby status, and operating status of the air source heat pump water heater of the electric steam generator, call the data of the steam flow and pressure detection equipment, calculate the steam pressure change rate, calculate the steam temperature adjustment rate, calculate the ratio of the steam temperature adjustment rate to the steam pressure change rate, screen the steam temperature adjustment rate over-limit value, and obtain the steam temperature adjustment over-limit value; S2: Based on the steam temperature adjustment over-limit value, the steam pressure change rate, the steam flow rate adjustment rate, and the steam temperature adjustment rate are called to calculate the change ratio between the steam flow rate increase rate and the steam temperature decrease rate, screen the power compensation demand value, quantify the dynamic compensation power interval adjustment amount, correct the heating power allocation parameter, and obtain the heating power allocation adjustment amount; S3: Based on the heating power distribution adjustment amount, the high-pressure end steam temperature change rate and the low-pressure end steam temperature lag time are called to calculate the steam transfer delay coefficient, screen the steam temperature adjustment compensation amount, analyze the pressure gradient change rate in the steam flow valley area, calculate the steam transmission path temperature change curve, and obtain the temperature and pressure compensation parameters; S4: Based on the temperature and pressure compensation parameters, the main steam pipeline inlet pressure and the branch outlet pressure are called to calculate the pressure difference change rate, filter the pipeline blockage judgment value and the pressure drop trend judgment value, analyze the pipeline abnormal state, extract the valve opening fluctuation rate, and obtain the steam heating abnormal warning value; S5: Based on the abnormal warning value of steam heating, call the electric steam generator automatic control system, calculate the start and stop control parameters of the steam generator, call the steam supply power adjustment amount, calculate the heating state adjustment value of the electric steam generator, screen the steam supply adjustment interval, optimize the steam flow distribution, and obtain the electric steam generator control plan.

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