Sanitary totally-closed filter press and control method

Abstract

The invention provides a sanitary totally-closed filter press and a control method, and belongs to the technical field of separation, and the control method specifically comprises the following steps: carrying out automatic revision treatment on a correction value of hydraulic pressure of the filter press by utilizing a preset automatic revision treatment strategy, when the change data of the hydraulic pressure after the different automatic revision processing processes do not meet the requirements, determining a revision processing mode when the hydraulic pressure of the monitoring node changes on the basis of the change condition of the revision value in the different automatic revision processing processes; according to the revision processing method, the revision value of the temperature of the filter press is determined on the basis of the automatic revision processing result and the revision processing mode of the monitoring node in combination with the change condition of the hydraulic pressure subjected to automatic revision processing in different hydraulic pressure intervals, and the reliability degree of filtering processing is improved.

Description

Technical Field

[0001] The present invention belongs to the field of separation technology, and particularly relates to a hygienic fully enclosed filter press and a control method. Background Art

[0002] The hygienic fully enclosed plate and frame filter press is mainly composed of a stainless steel frame and a pharmaceutical grade polypropylene plate and frame. It provides a safe and efficient deep filtration system for customers in the biopharmaceutical field, and can be widely used in the separation and collection of plasma products, the initial acquisition of cells, and the clarification of vaccines, enzyme preparations, antibiotics, etc.

[0003] During the operation of the filter press, various warning signals will inevitably occur. Specifically, in order to identify and process the warning signals of the filter press, in the invention patent application CN202311638597.8 "An Automatic Control System and Method for a Vertical Filter Press", an extreme random forest prediction algorithm is adopted to monitor the material characteristics and filtration status in real time, automatically adjust the operating parameters of the filter press, and classify the faults generated by abnormal data, and make corresponding warning signals according to the fault types, so that maintenance personnel can more clearly judge the level of the faults and make quick handling, improving the reliability of the analysis and processing of warning data. However, the following technical problems exist in the above technical solution: As the operation time of the filter press increases, the sealing condition will inevitably deteriorate. Therefore, after the monitoring node of the hydraulic pressure is corrected, that is, after revision, the hydraulic pressure gradually changes, which requires adjustment of the hydraulic pressure. At the same time, when adjusting the hydraulic pressure, the filtration temperature also needs to be considered to avoid the influence of excessive hydraulic pressure on the filtration temperature of blood products, resulting in an increased risk of deterioration. Since the temperature needs to consider the reliability of different monitoring nodes in the historical revision process during the revision process, how to determine the revision method of the filtration temperature according to 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 adjusting the hydraulic pressure has become an urgent technical problem to be solved.

[0004] To solve the above technical problems, the present application provides a hygienic fully enclosed filter press and a control method. Summary of the Invention

[0005] To achieve the object of the present invention, the present invention adopts the following technical solutions: Specifically, the present application provides a control method, which specifically includes: S1 Based on the operation data of the filter press, determine the temperature monitoring data during the operation of the filter press. When it is determined that the automatic revision process of the revision value of the temperature can be carried out based on the temperature monitoring data, proceed to the next step; S2 performs automatic revision processing on the correction value of the hydraulic pressure of the filter press using a preset automatic revision processing strategy. When the change data of the hydraulic pressure after different automatic revision processing processes does not meet the requirements, proceed to the next step; S3 determines the revision processing method when the hydraulic pressure of the monitoring node changes based on the change situation of the revision values in different automatic revision processing processes; S4 determines the revision processing method for the revision value of the temperature of the filter press based on the automatic revision processing result and the revision processing method of the monitoring node, and in combination with the change situation of the hydraulic pressure after automatic revision processing in different hydraulic pressure intervals.

[0006] The beneficial effects of the present invention are as follows: Based on the change situation of the revision values in different automatic revision processing processes, determine the revision processing method when the hydraulic pressure of the monitoring node changes, thereby fully considering the differences in the monitoring reliability when the hydraulic pressure changes due to the differences in the installation position and method of the monitoring node, and further leading to the differences in the change situation of the revision values. This not only avoids the technical problem of excessive difficulty in revision processing caused by frequent revision processing, but also ensures the reliability of the monitoring and processing of the hydraulic pressure.

[0007] Based on the automatic revision processing result and the revision processing method of the monitoring node, and the change situation of the hydraulic pressure after automatic revision processing in different hydraulic pressure intervals, determine the revision processing method for the revision value of the temperature of the filter press. This not only considers the differences in the revision processing requirements and the pressure adjustment requirements due to the differences in the change trends of the hydraulic pressure under the automatic revision processing result, but also realizes the determination of the revision processing method for the revision value of the temperature of the filter press from two perspectives of the pressure adjustment requirement and the revision processing requirement. Since the temperature needs to consider the reliability of different monitoring nodes in the historical revision process during revision processing, the revision processing method is dynamically adjusted, thereby ensuring the reliability of the temperature revision processing.

[0008] A further technical solution is that the temperature monitoring data is determined based on the monitoring data of the filtration temperature during the operation of the filter press.

[0009] A further technical solution is that determining that automatic revision processing of the revision value of the temperature can be performed specifically includes: Based on the temperature monitoring data, determine the monitoring data of the filtration temperature during the operation of the filter press; Based on the monitoring data of the filtration temperature at different times, determine the deviation amount between the filtration temperature and the preset filtration temperature threshold, and use the deviation amount to determine the monitoring data risk moment; Determine whether automatic revision processing of the revised value of the temperature can be performed according to the distribution data of the risk moments of the monitored data.

[0010] A further technical solution lies in that the method for determining the revision processing method of the revised value of the temperature of the filter press is as follows: Determine the corrected monitored 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; According to the matching situation between the corrected monitored pressure and the hydraulic pressure range, and in combination with the revision processing method, determine the predicted revision duration under the corrected monitored pressure, and determine the predicted adjustment duration under the corrected monitored pressure based on the adjustment conditions of the monitored pressure; Based on the predicted revision duration and the predicted adjustment duration, determine the revision processing method of the revised value of the temperature of the filter press.

[0011] In a second aspect, the present invention provides a hygienic fully enclosed filter press, adopting the above control method, specifically including: A pressure monitoring module, a temperature monitoring module, and an automatic revision module; The pressure monitoring module is responsible for monitoring and processing the hydraulic pressure of the filter press; The temperature monitoring module is responsible for monitoring and processing the temperature of the filter press; The automatic revision module is responsible for performing revision processing on the temperature and the hydraulic pressure.

[0012] Other features and advantages will be described in the subsequent description, and the objectives and other advantages of the present invention are achieved and obtained by the structures specifically pointed out in the description and the drawings.

[0013] To make the above objectives, features, and advantages of the present invention more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the accompanying drawings, the detailed description is as follows. Description of the Drawings

[0014] By referring to the accompanying drawings and describing its exemplary embodiments in detail, the above and other features and advantages of the present invention will become more obvious; Figure 1 It is a flowchart of a control method; Figure 2 It is a flowchart for determining that the variation data of the hydraulic pressure does not meet the requirements; Figure 3 It is a flowchart of the method for determining the revision processing method when the hydraulic pressure of the monitoring node changes; Figure 4 It is a flowchart of the method for determining the revision processing method of the revised value of the temperature of the filter press; Figure 5 It is a framework diagram of a hygienic fully enclosed filter press. Specific implementation manners

[0015] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all the embodiments. Based on the embodiments of this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this specification.

[0016] In this application, when the sealing state of the filter press is aging, since the pressure and temperature of the filter press need to be automatically revised, that is, during the automatic correction process, it is necessary to perform automatic revision in combination with the historical data of different monitoring nodes. Therefore, by combining the pressure adjustment requirements of the filter press with the matching situation of the pressure revision nodes, the automatic revision processing strategy of the temperature is determined, thereby ensuring the reliability of the temperature revision process, and further ensuring the operation stability and safety of the equipment during the pressure adjustment process.

[0017] When blood products are being filtered, they need to be stabilized between 10–35 °C. The monitoring data risk moment is the moment when the deviation from the endpoint value is less than 1 degree Celsius. When the number of monitoring data risk moments is relatively large, that is, when it is greater than a certain quantity ratio threshold, in a possible embodiment, that is, when it is greater than 0.1 or more, at this time, in order to ensure the reliability of blood products, the automatic revision of the temperature revision value cannot be performed.

[0018] Take the change amount of the hydraulic pressure within a preset time period after different automatic revision processes as the pressure change amount. When the average value of the pressure change amounts after different automatic revision processes is greater than the preset change amount threshold, it is determined that the change data of the hydraulic pressure does not meet the requirements.

[0019] The revision processing method is determined according to the hydraulic pressure change interval where the change amount of the revision value meets the requirements. Specifically, the hydraulic pressure change interval where the change amount of the revision value is less than the preset change amount threshold is used as the hydraulic pressure change interval where the change amount of the revision value meets the requirements.

[0020] Based on the automatic revision result of the monitoring node and the pressure monitoring data of the monitoring node, determine the corrected monitoring pressure of the monitoring node. According to the matching situation between the corrected monitoring pressure and the hydraulic pressure interval, determine the predicted duration for the change amount of the hydraulic pressure to reach the hydraulic pressure change interval corresponding to the revision processing method, and use it as the predicted revision duration under the corrected monitoring pressure; Based on the adjustment conditions monitored by pressure, determine the predicted duration for the change amount of the hydraulic pressure to reach the hydraulic pressure change range corresponding to the adjustment conditions, and use it as the predicted adjustment duration. The predicted adjustment duration and the predicted revision duration are determined according to the change situation of the historical pressure within the hydraulic pressure range, that is, the average duration when the historical pressure changes to the target conditions.

[0021] Based on the predicted adjustment duration, when the number of revision processes of the hydraulic pressure reaching the predicted revision duration within the predicted adjustment duration meets the requirements, in a possible embodiment, that is, when it is more than 4 times, only the revision process of the revised value of the temperature of the filter press needs to be carried out when the revision process of the hydraulic pressure is carried out; When the number of revision processes of the hydraulic pressure reaching the predicted revision duration within the predicted adjustment duration is not more than 4 times, therefore, a method for determining the revision process of the revised value of the temperature of the filter press by using a preset pressure change amount is adopted, that is, when the pressure change reaches the preset pressure change amount, the revision process of the revised value of the temperature of the filter press is carried out.

[0022] Embodiment 1 As Figure 1 shown, the present application provides a control method, which specifically includes: S1 Based on the operation data of the filter press, determine the temperature monitoring data of the filter press during operation. When it is determined that the automatic revision process of the revised value of the temperature can be carried out based on the temperature monitoring data, proceed to the next step; Furthermore, the temperature monitoring data is determined according to the monitoring data of the filtration temperature of the filter press during operation.

[0023] Specifically, determining that the automatic revision process of the revised value of the temperature can be carried out specifically includes: Based on the temperature monitoring data, determine the monitoring data of the filtration temperature of the filter press during operation; Based on the monitoring data of the filtration temperature at different times, determine the deviation amount between the filtration temperature and the preset filtration temperature threshold, and use the deviation amount to determine the risk moment of the monitoring data; According to the distribution data of the risk moments of the monitoring data, determine whether the automatic revision process of the revised value of the temperature can be carried out.

[0024] It can be understood that 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. It can be understood that when filtering blood products, the temperature needs to be stabilized between 10–35°C. In a possible embodiment, the monitoring data risk moment 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 during the automatic correction processing, since the temperature cannot be accurately monitored, it may cause the filtering result of the blood product not to meet the requirements.

[0025] It should be noted that when the number of monitoring data risk moments is large, that is, when it is greater than a certain quantity ratio threshold, in a possible embodiment, that is, when it is greater than 0.1 or more, at this time, in order to ensure the reliability of the blood product, the automatic revision processing of the temperature revision value cannot be performed.

[0026] It can be understood that when the automatic revision processing of the temperature revision value cannot be performed, the temperature revision is performed regularly by the operation and maintenance personnel to ensure the reliability of the temperature.

[0027] Optionally, determining that the automatic revision processing of the temperature revision value can be performed specifically includes: S11 Using the temperature monitoring data, determine the monitoring data of the filtering temperature during the operation of the filter press. Based on the monitoring data of the filtering temperature at different moments, determine the deviation between the filtering temperature and the preset filtering temperature threshold, and use the deviation to determine the monitoring data risk moment; The preset filtering temperature threshold is 10 degrees and 35 degrees.

[0028] It should be noted that it is necessary to determine whether there is a moment greater than 35 degrees or less than 10 degrees Celsius during the operation of the filter press. When there is a moment greater than 35 degrees or less than 10 degrees Celsius, at this time, it is regarded as an abnormal moment. When there is an abnormal moment, it is directly determined that the automatic revision processing of the temperature revision value cannot be performed.

[0029] It can be understood that when there is no monitoring data risk moment and abnormal moment, it is determined that the automatic revision processing of the temperature revision value can be performed.

[0030] In addition, it should be noted that when there is a monitoring data risk moment, it is also necessary to further determine whether the number of monitoring data risk moments meets the requirements. When the number of monitoring data risk moments does not meet the requirements, that is, when the number of monitoring data risk moments is large, that is, when it is greater than a certain quantity ratio threshold, in a possible embodiment, that is, when it is greater than 0.1 or more, at this time, in order to ensure the reliability of the blood product, the automatic revision processing of the temperature revision value cannot be performed.

[0031] S12 determines the number of monitoring data risk moments within different unit time periods according to the distribution data of the monitoring data risk moments; In addition, it should be noted that if there are monitoring data risk moments in different unit time periods in the above steps, in order to ensure the reliability of blood products, the automatic revision process of the temperature revision value cannot be performed at this time.

[0032] In addition, it can be understood that when there are not evenly distributed monitoring data risk moments in different unit time periods, it is necessary to determine the number of unit time periods with monitoring data risk moments at this time. When the number of unit time periods with monitoring data risk moments is small, that is, less than the time period number threshold, it can be directly determined that the automatic revision process of the temperature revision value can be performed at this time.

[0033] If the number of unit time periods of the monitoring data risk moments is not small, it is also necessary to further determine the unit time periods in which the proportion of the number of monitoring data risk moments is greater than the threshold. In a possible embodiment, the unit time periods greater than 0.3 are used as risk time periods. When the number of risk time periods does not meet the requirements, that is, greater than the time period number threshold, in order to ensure the reliability of blood products, the automatic revision process of the temperature revision value cannot be performed at this time.

[0034] In addition, it should be noted that when the number of risk time periods meets the requirements, it directly proceeds to the next step.

[0035] S13 determines whether the automatic revision process of the temperature revision value can be performed according to the number of monitoring data risk moments within different unit time periods and in combination with the number of unit time periods with monitoring data risk moments.

[0036] In addition, it can be understood that in the above steps, in a possible embodiment, based on the average value of the proportion of the number of monitoring data risk moments within different unit time periods and the average value of the proportion of the number of unit time periods with monitoring data risk moments, the risk value of the automatic revision process is determined. When the risk value is greater than the preset risk threshold, it is determined that the automatic revision process of the temperature revision value cannot be performed.

[0037] S2 performs the automatic revision process of the correction value of the hydraulic pressure of the filter press by using a preset automatic revision process strategy. When the change data of the hydraulic pressure after different automatic revision processes does not meet the requirements, it proceeds to the next step; Furthermore, performing the automatic revision process of the correction value of the hydraulic pressure of the filter press by using a preset automatic revision process strategy specifically includes: According to a preset time period, based on the monitored values of the hydraulic pressure at different measurement points of the filter press, the measurement points with consistent monitored values of the hydraulic pressure are divided into the same group. The reliable group is determined according to the sum of the reliable values of the measurement points in different groups. The deviation value between the monitored value of the hydraulic pressure corresponding to the reliable group and the monitored value of the measurement point is used as the revised value, and the sum of the revised value and the actual monitored value of the hydraulic pressure is used as the current hydraulic pressure.

[0038] It can be understood that the reliable value of the measurement point is determined according to the ratio of the number of automatic revision processing procedures with the largest number of measurement points in the group where the measurement point is located within the most recent preset time period to the number of automatic revision processing procedures.

[0039] Specifically, the value range of the preset time period is 3 days.

[0040] Specifically, the true hydraulic pressure is the monitored value of the hydraulic pressure with the largest number of measurement points having consistent monitored values, where the measurement points include spare measurement points and monitored measurement points.

[0041] Specifically, as Figure 2 shown, it is determined that the change data of the hydraulic pressure does not meet the requirements, specifically including: Based on the change data of the hydraulic pressure after different automatic revision processing procedures, the change amount of the hydraulic pressure within a preset time period is determined; The change amounts of the hydraulic pressure after different automatic revision processing procedures within a preset time period are used as the pressure change amounts; According to the pressure change amounts after different automatic revision processing procedures, it is determined whether the change data of the hydraulic pressure meets the requirements.

[0042] It should be noted that the value range of the preset time period is between 1 hour and 3 hours.

[0043] It can be understood that when the pressure change amounts after different automatic revision processing procedures are all greater than the preset change amount threshold, it is determined that the change data of the hydraulic pressure does not meet the requirements.

[0044] In addition, it should be noted that when the change data of the hydraulic pressure meets the requirements, it indicates that the sealing state of the filter press is reliable. Therefore, on this basis, the revision processing of the revised value of the temperature of the filter press is carried out according to a preset time period. In a possible embodiment, the value range of the preset time period is between 30 minutes and 1 hour.

[0045] Specifically, the measurement points with consistent monitored values of the temperature are divided into the same group. The reliable group is determined according to the sum of the reliable values of the measurement points in different groups. The deviation value between the monitored value of the temperature corresponding to the reliable group and the monitored value of the temperature measurement point is used as the revised value.

[0046] Optionally, determining that the hydraulic pressure change data does not meet the requirements includes: 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; 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.

[0047] It should be noted that the preset time period ranges from 1 hour to 3 hours.

[0048] 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.

[0049] 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; 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: 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; Based on the change amount, a revised processing method is determined when the hydraulic pressure of the monitoring node changes.

[0050] 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.

[0051] 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.

[0052] Specifically, the maximum hydraulic pressure variation interval is a hydraulic pressure variation interval having a maximum endpoint value.

[0053] S4 determines the revision processing method of the revision value of the temperature of the filter press based on the automatic revision processing result and the revision processing method of the monitoring node, and combines the change of the hydraulic pressure after the automatic revision processing in different hydraulic pressure ranges.

[0054] Specifically, as Figure 4 shown, the method for determining the revision processing method of the revision value of the temperature of the filter press is: Determine the 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; According to the matching situation between the corrected monitoring pressure and the hydraulic pressure range, and combining the revision processing method, determine the predicted revision duration under the corrected monitoring pressure, and determine the predicted adjustment duration under the corrected monitoring pressure based on the adjustment condition of the monitoring pressure; Based on the predicted revision duration and the predicted adjustment duration, determine the revision processing method of the revision value of the temperature of the filter press.

[0055] It can be understood that the predicted revision duration is determined according to the predicted duration to reach the hydraulic pressure change range corresponding to the revision processing method within the hydraulic pressure range where the corrected monitoring pressure is located, specifically determined according to the average duration to reach the hydraulic pressure change range after different automatic revision processing processes within the hydraulic pressure range.

[0056] A further technical solution is that the predicted adjustment duration is determined according to the predicted duration to reach the hydraulic pressure change range that the hydraulic pressure needs to be adjusted within the hydraulic pressure range where the corrected monitoring pressure is located, specifically determined according to the average duration to reach the hydraulic pressure change range that the hydraulic pressure needs to be adjusted after different automatic revision processing processes within the hydraulic pressure range.

[0057] Further, based on the predicted revision duration and the predicted adjustment duration, determine the revision processing method of the revision value of the temperature of the filter press, specifically including: When it is determined based on the predicted adjustment duration that the number of revision processing times of the hydraulic pressure reaching the predicted revision duration within the predicted adjustment duration meets the requirement, that is, is greater than the preset revision times threshold, then only when performing the revision processing of the hydraulic pressure, perform the revision processing of the revision value of the temperature of the filter press; It can be understood that when the number of revision processing times of the hydraulic pressure reaches more than 4 times when the predicted adjustment duration is reached, then only when performing the revision processing of the hydraulic pressure, perform the revision processing of the revision value of the temperature of the filter press.

[0058] 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.

[0059] Specifically, when the hydraulic pressure variation reaches a preset pressure variation, the revised value of the temperature of the filter press is automatically revised.

[0060] Optionally, the method for determining the revised processing method of the revised value of the temperature of the filter press is: 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; 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.

[0061] 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.

[0062] 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; 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] Example 2 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: 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.

[0068] 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.

[0069] The specific embodiments of the present specification have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve the desired results. Additionally, the processes depicted in the drawings do not necessarily require the particular order or sequential order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0070] The above description is only for one or more embodiments of the present specification and is not intended to limit the present specification. For those skilled in the art, various changes and modifications can be made to one or more embodiments of the present specification. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of the present specification shall be included within the scope of the claims of the present specification.

Claims

1. A control method, characterized in that, Specifically include: Based on the operation data of the filter press, determine the temperature monitoring data during the operation of the filter press. When it is determined that automatic revision processing of the revision value of the temperature can be performed based on the temperature monitoring data, proceed to the next step; Perform automatic revision processing of the correction value of the hydraulic pressure of the filter press using a preset automatic revision processing strategy. When the variation data of the hydraulic pressure after different automatic revision processing processes does not meet the requirements, proceed to the next step; Based on the variation of the revision value during different automatic revision processing processes, determine the revision processing method when the hydraulic pressure at the monitoring node changes; Based on the automatic revision processing results and revision processing methods of the monitoring node, and combined with the variation of the hydraulic pressure after automatic revision processing in different hydraulic pressure intervals, determine the revision processing method of the revision value of the temperature of the filter press.

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

3. The control method according to claim 1, wherein Determining that automatic revision processing of the revision value of the temperature can be performed specifically includes: Based on the temperature monitoring data, determine the monitoring data of the filtration temperature during the operation of the filter press; Based on the monitoring data of the filtration temperature at different times, determine the deviation between the filtration temperature and the preset filtration temperature threshold, and use the deviation to determine the monitoring data risk moment; According to the distribution data of the monitoring data risk moment, determine whether automatic revision processing of the revision 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 deviation threshold of the filtration temperature threshold is less than the preset deviation threshold.

5. The control method according to claim 1, characterized in that, When automatic revision processing of the revision value of the temperature cannot be performed, the maintenance personnel perform temperature revision processing regularly to ensure the reliability of the temperature.

6. The control method according to claim 1, characterized in that Performing automatic revision processing of the correction value of the hydraulic pressure of the filter press using a preset automatic revision processing strategy specifically includes: According to a preset time period, based on the monitoring values of the hydraulic pressure at different measuring points of the filter press, divide the measuring points with the same monitoring value of the hydraulic pressure into the same combination. Determine the reliable combination according to the sum of the reliable values of the measuring points in different combinations, and use the deviation value between the monitoring value of the hydraulic pressure corresponding to the reliable combination and the monitoring value of the monitoring measuring point as the revision value.

7. The control method according to claim 1, characterized in that Determining that the variation data of the hydraulic pressure does not meet the requirements specifically includes: Based on the variation data of the hydraulic pressure after different automatic revision processing processes, determine the variation amount of the hydraulic pressure within a preset time period; Use the variation amount of the hydraulic pressure within a preset time period after different automatic revision processing processes as the pressure variation amount; According to the pressure variation amount after different automatic revision processing processes, determine whether the variation data of the hydraulic pressure meets the requirements.

8. The control method according to claim 1, characterized in that The method for determining the revision processing method of the revision value of the temperature of the filter press is: Based on the automatic revision processing results of the monitoring node and the pressure monitoring data of the monitoring node, determine the corrected monitoring pressure of the monitoring node; Based on the matching situation between the corrected monitoring pressure and the hydraulic pressure range, and in combination with the revised processing method, determine the predicted revision duration at the corrected monitoring pressure, and based on the adjustment condition of the monitoring pressure, determine the predicted adjustment duration at the corrected monitoring pressure; Based on the predicted revision duration and the predicted adjustment duration, determine the revision processing method for the revised value of the temperature of the filter press.

9. The control method according to claim 8, characterized in that, Based on the predicted revision duration and the predicted adjustment duration, determine the revision processing method for the revised value of the temperature of the filter press, specifically including: Based on the predicted adjustment duration, when the number of revision processes of the hydraulic pressure reaching the predicted revision duration within the predicted adjustment duration meets the requirements, only the revision process of the revised value of the temperature of the filter press needs to be carried out when the revision process of the hydraulic pressure is carried out.

10. A hygienic fully enclosed filter press, adopting a control method according to any one of claims 1-9, characterized in that, Specifically including: Pressure monitoring module, temperature monitoring module, automatic revision module; The pressure monitoring module is responsible for monitoring and processing the hydraulic pressure of the filter press; The temperature monitoring module is responsible for monitoring and processing the temperature of the filter press; The automatic revision module is responsible for carrying out the revision processing of the temperature and the hydraulic pressure.

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