A sanitary fully enclosed filter press and control method

Abstract

The present invention provides a sanitary fully enclosed filter press and a control method, which belong to the field of separation technology, and specifically include: using a preset automatic revision processing strategy to automatically revise the correction value of the hydraulic pressure of the filter press; when the change data of the hydraulic pressure after different automatic revision processing processes does not meet the requirements, based on the change of the revision value in the different automatic revision processing processes, the revision processing method of the hydraulic pressure of the monitoring node when the change occurs is determined; based on the automatic revision processing results and the revision processing method of the monitoring node, and combined with the change of the hydraulic pressure after the automatic revision processing in different hydraulic pressure ranges, the revision processing method of the revision value of the temperature of the filter press is determined, thereby improving the reliability of the filtration process.

Description

Technical Field

[0001] The invention belongs to the field of separation technology, and in particular relates to a sanitary fully enclosed filter press and a control method thereof. Background Art

[0002] The sanitary, fully enclosed plate and frame filter press is primarily composed of a stainless steel frame and pharmaceutical-grade polypropylene plates and frames. It provides a safe and efficient deep filtration system for customers in the biopharmaceutical field. It can be widely used in the separation and collection of plasma products; initial cell harvesting; and clarification of vaccines, enzyme preparations, and antibiotics.

[0003] During the operation of the filter press, various alarm signals are inevitably generated. Specifically, in order to realize the recognition and processing of the alarm signals of the filter press, the invention patent application CN202311638597.8 "A vertical filter press automatic control system and method" adopts an extreme random forest prediction algorithm to monitor material properties and filtration status in real time, automatically adjust the operating parameters of the filter press, and classify the faults caused by abnormal data. According to the fault type, corresponding alarm signals are generated, so that maintenance personnel can more clearly judge the level of the fault and quickly deal with it, thereby improving the reliability of the analysis and processing of the alarm data. However, the above technical solution has the following technical problems:

[0004] As the operating time of the filter press increases, the sealing condition will inevitably deteriorate. Therefore, after the hydraulic pressure monitoring node is calibrated, that is, after revision, the hydraulic pressure gradually changes, which requires adjustment of the hydraulic pressure. At the same time, the filtration temperature needs to be considered when adjusting the hydraulic pressure, so as to avoid the influence of excessive hydraulic pressure on the filtration temperature of blood products, resulting in an increased risk of deterioration. Since the reliability of different monitoring nodes in the historical revision process needs to be considered when revising the temperature, how to determine the revision method of the filtration temperature based on the adjustment requirements of the hydraulic pressure and the revision method of the hydraulic pressure, so as to ensure the reliability of the temperature monitoring data when the hydraulic pressure is adjusted, has become a technical problem that needs to be solved urgently.

[0005] In order to solve the above technical problems, the present application provides a sanitary fully enclosed filter press and a control method. Summary of the Invention

[0006] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0007] Specifically, the present application provides a control method, which specifically includes:

[0008] S1 determines the temperature monitoring data of the filter press during operation based on the operating data of the filter press, and proceeds to the next step when it is determined that the temperature revision value can be automatically revised based on the temperature monitoring data;

[0009] S2 performs automatic revision processing of the correction value of the hydraulic pressure of the filter press using a preset automatic revision processing strategy, and when the change data of the hydraulic pressure after different automatic revision processing processes does not meet the requirements, proceeds to the next step;

[0010] S3 determines a revision processing method when the hydraulic pressure of the monitoring node changes based on the change of the revision value in different automatic revision processing processes;

[0011] S4 determines a revision processing method for the revision value of the temperature of the filter press based on the automatic revision processing result and revision processing method of the monitoring node and in combination with the change of the hydraulic pressure after the automatic revision processing in different hydraulic pressure ranges.

[0012] The beneficial effects of the present invention are:

[0013] Based on the changes in the revision values ​​during different automatic revision processing processes, the revision processing method of the monitoring node when the hydraulic pressure changes is determined, thereby fully taking into account the differences in the setting positions and methods of the monitoring nodes, which lead to differences in the monitoring reliability when the hydraulic pressure changes, and thus the differences in the changes in the revision values. This not only avoids the emergence of technical problems caused by the difficulty of revision processing due to frequent revision processing, but also ensures the reliability of the monitoring processing of hydraulic pressure.

[0014] Based on the automatic revision processing results and revision processing methods of the monitoring nodes, and the changes in hydraulic pressure after automatic revision processing in different hydraulic pressure ranges, a revision processing method for determining the revision value of the temperature of the filter press is determined. This not only takes into account the differences in the demand for revision processing and the difference in pressure adjustment demand caused by the differences in the change trends of the hydraulic pressure under the automatic revision processing results, but also realizes the determination of the revision processing method for the revision value of the temperature of the filter press from the two perspectives of pressure adjustment demand and revision processing demand. Since the reliability of different monitoring nodes in the historical revision process needs to be considered when revising the temperature, the reliability of the temperature revision is guaranteed by dynamically adjusting the revision processing method.

[0015] A further technical solution is that the temperature monitoring data is determined based on monitoring data of the filtration temperature of the filter press during operation.

[0016] A further technical solution is to determine whether the automatic revision process of the revised value of the temperature can be performed, specifically including:

[0017] Determining monitoring data of the filtration temperature of the filter press during operation using the temperature monitoring data;

[0018] Based on the monitoring data of the filtration temperature at different moments, determining the deviation of the filtration temperature from a preset filtration temperature threshold, and using the deviation to determine the risk moment of the monitoring data;

[0019] According to the distribution data of the monitoring data at the risk moment, it is determined whether automatic revision processing of the revised value of the temperature can be performed.

[0020] A further technical solution is that the method for determining the revised processing method of the revised value of the temperature of the filter press is:

[0021] Determining a corrected monitoring pressure of the monitoring node based on the automatic revision processing result of the monitoring node and the pressure monitoring data of the monitoring node;

[0022] Determining a predicted revision duration at the revised monitoring pressure based on a match between the revised monitoring pressure and the hydraulic pressure range and in combination with the revision processing method, and determining a predicted adjustment duration at the revised monitoring pressure based on an adjustment condition for the monitoring pressure;

[0023] Based on the predicted revision duration and the predicted adjustment duration, a revision processing method for the revised value of the temperature of the filter press is determined.

[0024] In a second aspect, the present invention provides a sanitary fully enclosed filter press, which adopts the above-mentioned control method, specifically comprising:

[0025] Pressure monitoring module, temperature monitoring module, automatic revision module;

[0026] The pressure monitoring module is responsible for monitoring the hydraulic pressure of the filter press;

[0027] The temperature monitoring module is responsible for monitoring the temperature of the filter press;

[0028] The automatic revision module is responsible for the revision process of temperature and hydraulic pressure.

[0029] Other features and advantages will be described in the following description. The objectives and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and drawings.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the accompanying drawings;

[0032] Figure 1 It is a flow chart of a control method;

[0033] Figure 2 It is a flow chart for determining that the change data of the hydraulic pressure does not meet the requirements;

[0034] Figure 3 A flowchart of a method for determining a revised processing method when a hydraulic pressure of a monitoring node changes;

[0035] Figure 4 A flowchart of a method for determining a revised processing method for a revised value of a temperature of a filter press;

[0036] Figure 5 This is a frame diagram of a sanitary fully enclosed filter press. DETAILED DESCRIPTION

[0037] To help those skilled in the art better understand the technical solutions in this specification, the following will provide a clear and complete description of the technical solutions in the embodiments of this specification, in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this specification, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this specification without creative work should fall within the scope of protection of this specification.

[0038] In the present application, when the sealing state of the filter press is aged, since the pressure and temperature of the filter press are automatically revised, that is, automatically corrected, it is necessary to combine the historical data of different monitoring nodes for automatic revision processing. Therefore, by combining the pressure adjustment requirements of the filter press with the matching of the pressure revision nodes, the automatic temperature revision processing strategy is determined, thereby ensuring the reliability of the temperature revision processing, and further ensuring the operating stability and safety of the equipment during the pressure adjustment process.

[0039] When blood products are being filtered, they need to be stabilized between 10-35°C. The risk moment of the monitoring data is when the deviation from the endpoint value is less than 1 degree Celsius. When the number of risk moments of the monitoring data is large, that is, greater than a certain number percentage threshold, in a possible embodiment, that is, greater than 0.1, in order to ensure the reliability of the blood products, the automatic revision of the temperature revision value cannot be performed.

[0040] The change in hydraulic pressure after different automatic revision processing processes within a preset time period is taken as the pressure change. When the average value of the pressure change after different automatic revision processing processes is greater than the preset change threshold, it is determined that the hydraulic pressure change data does not meet the requirements.

[0041] The revised processing method is determined based on the maximum hydraulic pressure variation range in which the change in the revised value meets the requirements. Specifically, the hydraulic pressure variation range in which the change in the revised value is less than the preset change threshold is used as the hydraulic pressure variation range in which the change in the revised value meets the requirements.

[0042] Determine the revised monitoring pressure of the monitoring node based on the automatic revision processing result of the monitoring node and the pressure monitoring data of the monitoring node; and determine the predicted duration for the hydraulic pressure change to reach the hydraulic pressure change interval corresponding to the revised processing method based on the matching between the revised monitoring pressure and the hydraulic pressure interval, and use this duration as the predicted revision duration under the revised monitoring pressure;

[0043] Based on the adjustment conditions of the monitored pressure, the predicted time for the change in hydraulic pressure to reach the hydraulic pressure change range corresponding to the adjustment conditions is determined, and it is used as the predicted adjustment time. The predicted adjustment time and the predicted revision time are determined based on the changes in historical pressure within the hydraulic pressure range, that is, the average time it takes for the historical pressure to change to the target condition.

[0044] When the number of revision processes for the hydraulic pressure reaching the predicted revision time period within the predicted adjustment time period meets the requirement based on the predicted adjustment time period, in a possible embodiment, that is, when the number of revision processes is 4 or more, it is only necessary to perform a revision process for the revised value of the temperature of the filter press when performing the revision process for the hydraulic pressure;

[0045] When the number of revision processing times of the hydraulic pressure reaching the predicted revision time within the predicted adjustment time is not more than 4 times, the revision processing method of the revised value of the temperature of the filter press is determined by using the preset pressure change amount, that is, when the pressure change reaches the preset pressure change amount, the revision processing of the revised value of the temperature of the filter press is performed.

[0046] Example 1

[0047] like Figure 1 As shown, the present application provides a control method, which specifically includes:

[0048] S1 determines the temperature monitoring data of the filter press during operation based on the operating data of the filter press, and proceeds to the next step when it is determined that the temperature revision value can be automatically revised based on the temperature monitoring data;

[0049] Furthermore, the temperature monitoring data is determined based on monitoring data of the filtration temperature of the filter press during operation.

[0050] Specifically, determining that the automatic revision process of the temperature revision value can be performed specifically includes:

[0051] Determining monitoring data of the filtration temperature of the filter press during operation using the temperature monitoring data;

[0052] Based on the monitoring data of the filtration temperature at different moments, determining the deviation of the filtration temperature from a preset filtration temperature threshold, and using the deviation to determine the risk moment of the monitoring data;

[0053] According to the distribution data of the monitoring data at the risk moment, it is determined whether automatic revision processing of the revised value of the temperature can be performed.

[0054] It can be understood that the risk moment of the monitoring data is the moment when the deviation between the monitoring data and the preset filtration temperature threshold is less than the preset deviation threshold. It can be understood that blood products need to be stabilized between 10-35°C during filtration processing. In a possible embodiment, the risk moment of the monitoring data is the moment when the deviation from the endpoint value is less than 1 degree Celsius. At this time, automatic correction processing is performed. Once there is a deviation in the temperature of the automatic correction processing, the filtration result of the blood product may not meet the requirements due to the inability to accurately monitor the temperature.

[0055] It should be noted that when the number of risk moments in the monitoring data is large, that is, greater than a certain number percentage threshold, in a possible embodiment, that is, greater than 0.1, in order to ensure the reliability of blood products, the temperature revision value cannot be automatically revised.

[0056] It is understandable that when the automatic revision process of the temperature revision value cannot be performed, the temperature revision process is performed regularly by the operation and maintenance personnel to ensure the reliability of the temperature.

[0057] Optionally, determining that the revised value of the temperature can be automatically revised includes:

[0058] S11 determines the monitoring data of the filtration temperature of the filter press during operation based on the temperature monitoring data, determines the deviation between the filtration temperature and a preset filtration temperature threshold based on the monitoring data of the filtration temperature at different moments, and determines the risk moment of the monitoring data based on the deviation;

[0059] The preset filtering temperature thresholds are 10 degrees and 35 degrees.

[0060] It should be noted that it is necessary to determine whether there is a moment when the temperature is greater than 35 degrees Celsius or less than 10 degrees Celsius during the operation of the filter press. When there is a moment when the temperature is greater than 35 degrees Celsius or less than 10 degrees Celsius, it is regarded as an abnormal moment. When there is an abnormal moment, it is directly determined that the automatic revision of the temperature revision value cannot be performed.

[0061] It can be understood that when there is no risk moment and abnormal moment in the monitoring data, it is determined that the automatic revision process of the revised value of the temperature can be performed.

[0062] In addition, it should be noted that when there are risk moments in the monitoring data, it is necessary to further determine whether the number of risk moments in the monitoring data meets the requirements. When the number of risk moments in the monitoring data does not meet the requirements, that is, when the number of risk moments in the monitoring data is large, that is, when it is greater than a certain number percentage threshold, in a possible embodiment, that is, when it is greater than 0.1, in order to ensure the reliability of blood products, the automatic revision of the temperature revision value cannot be performed.

[0063] S12: determining the number of monitoring data risk moments in different unit time periods according to the distribution data of the monitoring data risk moments;

[0064] It should also be noted that in the above steps, if there are risk moments in the monitoring data within different unit time periods, in order to ensure the reliability of blood products, the automatic revision of the temperature revision value cannot be performed.

[0065] It can also be understood that when there are uneven monitoring data risk moments in different unit time periods, it is necessary to determine the number of unit time periods in which there are monitoring data risk moments. When the number of unit time periods in which there are monitoring data risk moments is small, that is, less than the time period number threshold, it can be directly determined that the temperature revision value can be automatically revised.

[0066] If the number of unit time periods of risk moments in the monitoring data is large, it is necessary to further determine the unit time periods in which the number of risk moments in the monitoring data accounts for a greater proportion than the threshold. In a possible embodiment, unit time periods greater than 0.3 are regarded as risk time periods. When the number of risk time periods does not meet the requirements, that is, it is greater than the time period number threshold, then in order to ensure the reliability of blood products, the automatic revision of the temperature revision value cannot be performed.

[0067] It should also be noted that when the number of risk periods meets the requirements, the process directly proceeds to the next step.

[0068] S13 determines whether automatic revision processing of the temperature revision value can be performed based on the number of risk moments of the monitoring data in different unit time periods and the number of unit time periods in which the risk moments of the monitoring data exist.

[0069] It can also be understood that in the above steps, in a possible embodiment, the risk value for automatic revision processing is determined based on the average value of the proportion of the number of risk moments of monitoring data in different unit time periods and the average value of the proportion of the number of unit time periods in which there are risk moments of monitoring data. When the risk value is greater than the preset risk threshold, it is determined that automatic revision processing of the temperature revision value cannot be performed.

[0070] S2 performs automatic revision processing of the correction value of the hydraulic pressure of the filter press using a preset automatic revision processing strategy, and when the change data of the hydraulic pressure after different automatic revision processing processes does not meet the requirements, proceeds to the next step;

[0071] Furthermore, the automatic revision processing of the correction value of the hydraulic pressure of the filter press is performed using a preset automatic revision processing strategy, specifically including:

[0072] According to a preset time period, based on the monitoring values ​​of the hydraulic pressure of the filter press at different measuring points, the measuring points with consistent monitoring values ​​of the hydraulic pressure are divided into the same combination, and the credible combination is determined according to the sum of the credible values ​​of the measuring points in different combinations. The deviation value between the monitoring value of the hydraulic pressure corresponding to the credible combination and the monitoring value of the monitoring point is used as the revised value, and the sum of the revised value and the actual monitoring value of the hydraulic pressure is used as the current hydraulic pressure.

[0073] It can be understood that the credibility value of the measuring point is determined according to the ratio of the number of automatic revision processes with the largest number of measuring points in the combination where the measuring point is located within the latest preset period to the number of automatic revision processes.

[0074] Specifically, the preset time period has a value range of 3 days.

[0075] Specifically, the actual hydraulic pressure is the monitoring value of the hydraulic pressure at the largest number of measuring points having consistent monitoring values ​​of the hydraulic pressure, where the measuring points include spare measuring points and monitoring measuring points.

[0076] Specifically, such as Figure 2 As shown, it is determined that the hydraulic pressure change data does not meet the requirements, specifically including:

[0077] Determining a change in hydraulic pressure within a preset time period based on hydraulic pressure change data after different automatic revision processes;

[0078] taking the variation of the hydraulic pressure after different automatic revision processes within a preset time period as the pressure variation;

[0079] According to the pressure variation after different automatic revision processes, it is determined whether the hydraulic pressure variation data meets the requirements.

[0080] It should be noted that the preset time period ranges from 1 hour to 3 hours.

[0081] It is understandable that when the pressure variation after different automatic revision processes is greater than the preset variation threshold, it is determined that the hydraulic pressure variation data does not meet the requirements.

[0082] It should also be noted that when the change data of the hydraulic pressure meets the requirements, it means that the sealing state of the filter press is reliable. Therefore, on this basis, the revised value of the temperature of the filter press is revised according to the preset time period. In a possible embodiment, the value range of the preset time period is between 30 minutes and 1 hour.

[0083] Specifically, the measurement points with consistent temperature monitoring values ​​are divided into the same combination, the credible combination is determined based on the sum of the credible values ​​of the measurement points in different combinations, and the deviation value between the temperature monitoring value corresponding to the credible combination and the monitoring value of the temperature monitoring point is used as the revision value.

[0084] Optionally, determining that the hydraulic pressure change data does not meet the requirements includes:

[0085] Determining a change in hydraulic pressure within a preset time period based on hydraulic pressure change data after different automatic revision processes;

[0086] taking the variation of the hydraulic pressure after different automatic revision processes within a preset time period as the pressure variation;

[0087] Whether the hydraulic pressure variation data meets the requirements is determined based on the average values ​​of the pressure variation amounts after different automatic revision processes.

[0088] It should be noted that the preset time period ranges from 1 hour to 3 hours.

[0089] It can be understood that when the average value of the pressure variation after different automatic revision processes is greater than the preset variation threshold, it is determined that the hydraulic pressure variation data does not meet the requirements.

[0090] S3 determines a revision processing method when the hydraulic pressure of the monitoring node changes based on the change of the revision value in different automatic revision processing processes;

[0091] Specifically, such as Figure 3 As shown, the method for determining the revised processing mode when the hydraulic pressure of the monitoring node changes is:

[0092] Determining a change amount of the revised value of the monitoring node during the automatic revision process within different hydraulic pressure variation intervals based on a change in the revised value during the different automatic revision processes;

[0093] Based on the change amount, a revised processing method is determined when the hydraulic pressure of the monitoring node changes.

[0094] It can be understood that the variation of the revision value is determined according to the average value of the absolute values ​​of the deviations of the revision values ​​between different automatic revision processing processes within the hydraulic pressure variation interval.

[0095] It should be noted that the revision processing method is determined based on the maximum hydraulic pressure change range in which the change in the revised value meets the requirements. Whether the requirements are met is determined by taking the hydraulic pressure change range in which the change in the revised value is less than the preset change threshold as the hydraulic pressure change range in which the change in the revised value meets the requirements.

[0096] Specifically, the maximum hydraulic pressure variation interval is a hydraulic pressure variation interval having a maximum endpoint value.

[0097] S4 determines a revision processing method for the revision value of the temperature of the filter press based on the automatic revision processing result and revision processing method of the monitoring node and in combination with the change of the hydraulic pressure after the automatic revision processing in different hydraulic pressure ranges.

[0098] Specifically, such as Figure 4 As shown, the method for determining the revised processing method of the revised value of the temperature of the filter press is:

[0099] Determining a corrected monitoring pressure of the monitoring node based on the automatic revision processing result of the monitoring node and the pressure monitoring data of the monitoring node;

[0100] Determining a predicted revision duration at the revised monitoring pressure based on a match between the revised monitoring pressure and the hydraulic pressure range and in combination with the revision processing method, and determining a predicted adjustment duration at the revised monitoring pressure based on an adjustment condition for the monitoring pressure;

[0101] Based on the predicted revision duration and the predicted adjustment duration, a revision processing method for the revised value of the temperature of the filter press is determined.

[0102] It can be understood that the predicted revision duration is determined by correcting the predicted duration of the hydraulic pressure change interval corresponding to the revised processing method within the hydraulic pressure range where the monitored pressure is located. It is specifically determined based on the average duration of reaching the hydraulic pressure change interval after different automatic revision processing processes within the hydraulic pressure range.

[0103] A further technical solution is that the predicted adjustment time is determined by correcting the hydraulic pressure range in which the monitored pressure is located, and the predicted time for reaching the hydraulic pressure change range in which the hydraulic pressure needs to be adjusted is determined specifically based on the average time for reaching the hydraulic pressure change range in which the hydraulic pressure needs to be adjusted after different automatic revision processing processes within the hydraulic pressure range.

[0104] Furthermore, based on the predicted revision duration and the predicted adjustment duration, a revision processing method for determining a revised value of the temperature of the filter press specifically includes:

[0105] When the number of revision processing times of the hydraulic pressure reaching the predicted revision time within the predicted adjustment time is determined to meet the requirement based on the predicted adjustment time, that is, is greater than a preset revision number threshold, it is only necessary to perform a revision processing on the revised value of the temperature of the filter press when performing the revision processing on the hydraulic pressure;

[0106] It is understandable that when the predicted adjustment time is reached and the hydraulic pressure needs to be revised more than four times, it is only necessary to revise the revised value of the temperature of the filter press when revising the hydraulic pressure.

[0107] It can also be understood that when the number of revision processing times for the hydraulic pressure to reach the predicted revision time within the predicted adjustment time does not meet the requirements, that is, the number of revision processing times is too small, the revision processing method for the revised value of the temperature of the filter press is determined by using a preset pressure change.

[0108] Specifically, when the hydraulic pressure variation reaches a preset pressure variation, the revised value of the temperature of the filter press is automatically revised.

[0109] Optionally, the method for determining the revised processing method of the revised value of the temperature of the filter press is:

[0110] S41 determines a revised monitoring pressure of the monitoring node based on the automatic revision processing result of the monitoring node and the pressure monitoring data of the monitoring node, and determines a predicted adjustment time under the revised monitoring pressure based on an adjustment condition of the monitoring pressure;

[0111] It should be noted that in the above steps, if the estimated adjustment time is less than the preset adjustment time threshold, it means that the frequency of adjustment of the hydraulic pressure at this time is relatively high. Therefore, on this basis, the revision processing method of using the preset pressure change to revise the temperature value of the filter press can be directly determined.

[0112] In addition, if the estimated adjustment time is not less than the preset adjustment time threshold, when the estimated adjustment time is greater than the preset time threshold, it means that the frequency of adjustment of the hydraulic pressure is low. At the same time, it means that the change trend of the hydraulic pressure at this time is slow. Therefore, on this basis, it can be directly determined to revise the revised value of the temperature of the filter press according to the preset time period. In other cases, proceed to the next step.

[0113] S42 determines, based on the matching of the revised monitoring pressure and the hydraulic pressure range and in combination with the revision processing method, a predicted revision duration at the revised monitoring pressure, and determines a revision duration ratio of the filter press based on a ratio of the predicted adjustment duration to the preset revision duration;

[0114] It can also be understood that in the above steps, if the predicted revision time is less than the preset revision time threshold, it means that the predicted revision time is shorter, which means that the time interval for the hydraulic pressure revision processing during the change process is shorter. Therefore, on this basis, it is only necessary to revise the temperature value of the filter press when revising the hydraulic pressure, thereby further improving the reliability of the pressure in the adjustment process and linking the pressure and temperature revision processing together, thereby avoiding the technical problem that the reliability of the revision processing does not meet the requirements due to the small number of temperature revision processing caused by sudden changes in pressure.

[0115] Furthermore, in the above steps, when the predicted revision time is not less than the preset revision time threshold, it is necessary to further determine whether the revision time ratio of the filter press is greater than the preset revision time ratio threshold, wherein when the revision time ratio of the filter press is greater than the preset revision time ratio threshold, it is only necessary to revise the revision value of the temperature of the filter press when revising the hydraulic pressure.

[0116] However, if the predicted revision time is not less than the preset revision time threshold, especially when the number of revision processing times for the hydraulic pressure to reach the predicted revision time within the predicted adjustment time does not meet the requirements, that is, the number of revision processing times is too small, that is, less than the threshold, the preset pressure change amount is used to determine the revision processing method for the revised value of the temperature of the filter press.

[0117] S43 determines a revision processing method for the revised value of the temperature of the filter press based on the revision duration ratio and the predicted adjustment duration.

[0118] In another possible embodiment, based on the predicted adjustment time, a preset time ratio threshold of the specified time ratio is determined; when the revised time ratio is greater than the preset time ratio threshold, it is only necessary to revise the revised value of the temperature of the filter press when revising the hydraulic pressure; in other cases, the preset pressure change is used to determine the revision processing method for the revised value of the temperature of the filter press.

[0119] Example 2

[0120] Second, as Figure 5 As shown, the present invention provides a sanitary fully enclosed filter press, which adopts the above-mentioned control method, specifically comprising:

[0121] Pressure monitoring module, temperature monitoring module, automatic revision module;

[0122] The pressure monitoring module is responsible for monitoring the hydraulic pressure of the filter press;

[0123] The temperature monitoring module is responsible for monitoring the temperature of the filter press;

[0124] The automatic revision module is responsible for the revision process of temperature and hydraulic pressure.

[0125] The various embodiments in this specification are described in a progressive manner. Similar portions between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the device, apparatus, and non-volatile computer storage medium embodiments are generally similar to the method embodiments, so their descriptions are relatively simplified. For relevant details, refer to the descriptions of the method embodiments.

[0126] The foregoing description of this specification describes specific embodiments. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or the sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0127] The foregoing description is merely one or more embodiments of this specification and is not intended to limit this specification. It will be apparent to those skilled in the art that various modifications and variations may be made to one or more embodiments of this specification. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of one or more embodiments of this specification are intended to be within the scope of the claims of this specification.

Claims

1. A control method, characterized in that: Specifically include: Based on the operating data of the filter press, determining the temperature monitoring data of the filter press during operation, and when it is determined based on the temperature monitoring data that the temperature revision value can be automatically revised, proceeding to the next step; Performing automatic revision processing of the correction value of the hydraulic pressure of the filter press using a preset automatic revision processing strategy, and when the change data of the hydraulic pressure after different automatic revision processing processes does not meet the requirements, proceeding to the next step; Based on the changes in the revision values ​​during different automatic revision processes, a revision processing method is determined when the hydraulic pressure of the monitoring node changes; Determining a revision processing method for a revised value of the temperature of the filter press based on the automatic revision processing result and revision processing method of the monitoring node and in combination with the change of the hydraulic pressure after the automatic revision processing in different hydraulic pressure intervals; The method for determining the revised processing method of the revised value of the temperature of the filter press is: Determining a corrected monitoring pressure of the monitoring node based on the automatic revision processing result of the monitoring node and the pressure monitoring data of the monitoring node; Determining a predicted revision duration at the revised monitoring pressure based on a match between the revised monitoring pressure and the hydraulic pressure range and in combination with the revision processing method, and determining a predicted adjustment duration at the revised monitoring pressure based on an adjustment condition for the monitoring pressure; Determining a revision processing method for a revised value of the temperature of the filter press based on the predicted revision duration and the predicted adjustment duration; The revision processing method for determining the revised value of the temperature of the filter press based on the predicted revision duration and the predicted adjustment duration specifically includes: When the number of revision processing times for the hydraulic pressure to reach the predicted revision time within the predicted adjustment time is determined to meet the requirements based on the predicted adjustment time, it is only necessary to revise the revision value of the temperature of the filter press when revising the hydraulic pressure.

2. The control method according to claim 1, wherein: The temperature monitoring data is determined based on the monitoring data of the filtration temperature of the filter press during operation.

3. The control method according to claim 1, wherein: Determine whether automatic revision processing of the temperature revision value can be performed, specifically including: Determining monitoring data of the filtration temperature of the filter press during operation using the temperature monitoring data; Based on the monitoring data of the filtration temperature at different moments, determining the deviation of the filtration temperature from a preset filtration temperature threshold, and using the deviation to determine the risk moment of the monitoring data; According to the distribution data of the monitoring data at the risk moment, it is determined whether automatic revision processing of the revised value of the temperature can be performed.

4. The control method according to claim 3, wherein: The monitoring data risk moment is the moment when the deviation between the monitoring data and the preset filtering temperature threshold is less than the preset deviation threshold.

5. The control method according to claim 1, wherein: When the automatic revision of the temperature value cannot be performed, the temperature is revised regularly by the operation and maintenance personnel to ensure the reliability of the temperature.

6. The control method according to claim 1, wherein: The automatic revision processing of the correction value of the hydraulic pressure of the filter press is performed using a preset automatic revision processing strategy, specifically including: According to the preset time period, based on the monitoring values ​​of the hydraulic pressure of the filter press at different measuring points, the measuring points with consistent monitoring values ​​of the hydraulic pressure are divided into the same combination, and the credible combination is determined according to the sum of the credible values ​​of the measuring points in different combinations, and the deviation value between the monitoring value of the hydraulic pressure corresponding to the credible combination and the monitoring value of the monitoring point is used as the revision value.

7. The control method according to claim 1, wherein: Determine that the hydraulic pressure change data does not meet the requirements, including: Determining a change in hydraulic pressure within a preset time period based on hydraulic pressure change data after different automatic revision processes; taking the variation of the hydraulic pressure after different automatic revision processes within a preset time period as the pressure variation; According to the pressure variation after different automatic revision processes, it is determined whether the hydraulic pressure variation data meets the requirements.

8. A sanitary fully enclosed filter press, using a control method according to any one of claims 1 to 7, characterized in that: Specifically include: Pressure monitoring module, temperature monitoring module, automatic revision module; The pressure monitoring module is responsible for monitoring the hydraulic pressure of the filter press; The temperature monitoring module is responsible for monitoring the temperature of the filter press; The automatic revision module is responsible for the revision process of temperature and hydraulic pressure.

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