Quality detection system of filter

Abstract

The invention relates to the technical field of filter detection, and discloses a filter quality detection system, which comprises a data acquisition module, a data preprocessing module, a data analysis module and a result output module. According to the quality detection system of the filter, after the concentration content of particulate matters in liquid during liquid feeding and discharging, the speed value of the liquid during liquid feeding and discharging and the pressure value of the liquid during liquid feeding and discharging are collected, abnormal values in the values are cleaned to obtain corresponding corrected values, and the corrected values are compared with corresponding threshold values to determine the quality of the filter. The data analysis module judges whether the filter is abnormal or not, when any kind of abnormal data appears, the data analysis module judges that the filter is abnormal and sends out an abnormal signal, and therefore when the filter is detected, the filtering effect, the pressure and the flow speed of the filter can be detected at the same time, the detection duration is shortened, and the detection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of filter detection, in particular to a filter quality detection system. Background Art

[0002] A filter is a device or equipment used to separate, remove or extract substances. They are usually designed to remove solid particles from liquids, impurities in liquids or gases, or to separate specific components from a mixture. Filters can adopt a variety of working principles and structural designs to adapt to different filtering needs and application scenarios. Common filters include but are not limited to water filters and oil filters. They are widely used in industrial production, environmental protection, medical care, food processing and other fields; The purpose of testing the quality of filters is to ensure that they can work effectively when performing filtering tasks and avoid "damage". Currently, the quality of filters is determined by observing and measuring the external characteristics or performance of the filters, but the pressure and flow rate cannot be tested at the same time, which leads to prolonged testing time and low testing efficiency. Summary of the invention

[0003] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a filter quality detection system, which has the function of collecting the particle concentration content in the liquid during liquid inlet and outlet, the liquid speed value during liquid inlet and outlet, and the liquid pressure value during liquid inlet and outlet, and cleaning the abnormal values ​​among these values ​​to obtain the corresponding correction value, and compare the correction value with the corresponding threshold value to determine whether the filter has an abnormality. When any abnormal data appears, the data analysis module determines that the filter is abnormal and sends an abnormal signal. Then, when the filter is detected, its filtering effect, pressure and flow rate can be detected at the same time, which has the advantages of shortening the detection time, improving the detection efficiency, etc., and solves the above-mentioned problems.

[0004] (II) Technical solution To achieve the above object, the present invention provides the following technical solutions: a filter quality detection system, comprising a data acquisition module, a data preprocessing module, a data analysis module and a result output module; The data acquisition module includes a particle concentration acquisition unit, an outflow rate acquisition unit, an inflow rate acquisition unit, and an inflow and outflow pressure acquisition unit, wherein; The particle concentration collection unit is used to collect the particle concentration content value in the liquid when the filter is inflowing and the particle concentration content value in the liquid when the filter is outflowing, and the particle concentration content value in the liquid when the filter is outflowing and the particle concentration content value in the liquid when the filter is inflowing are grouped into 20 values ​​respectively; The liquid outflow velocity collection unit is used to collect the velocity values ​​of the liquid when it flows out of the filter, and the velocity values ​​of the liquid when it flows out of the filter are grouped into 10 values. The liquid inflow velocity collection unit is used to collect the velocity values ​​of the liquid when it enters the filter, and the velocity values ​​of the liquid when it enters the filter are grouped into 10 values. The inlet and outlet liquid pressure collection unit is used to collect the liquid pressure value when the filter is inlet and the liquid pressure value when the filter is outlet, and these two values ​​are grouped into 10; The data acquisition module sends the collected data to the data preprocessing module through the network. The data preprocessing module preprocesses the particle concentration content value in the liquid when the liquid is inlet, the particle concentration content value in the liquid when the filter is outlet, the speed value when the liquid flows out of the filter, the speed value when the liquid enters the filter, the liquid pressure value when the liquid is inlet, and the liquid pressure value when the liquid is outlet according to the algorithm model, eliminates abnormal data to obtain the corresponding correction value of the particle concentration content in the liquid when the liquid is inlet, the correction value of the particle concentration content in the liquid when the liquid is outlet, the speed correction value when the liquid flows out of the filter, the speed correction value when the liquid enters the filter, the liquid pressure correction value when the liquid is inlet, and the liquid pressure correction value when the liquid is outlet. The data preprocessing module sends the multiple correction values ​​obtained through the preprocessing to the data analysis module through the network; The data analysis module compares the particle concentration value in the liquid when the liquid is entering the filter with the particle concentration value in the liquid when the filter is exiting the filter to determine whether the filter is abnormal. The data analysis module compares the speed correction value when the liquid flows out of the filter with the speed correction value when the liquid enters the filter to determine whether the filter is abnormal. The data analysis module compares the liquid pressure correction value when the liquid is entering the filter with the liquid pressure correction value when the liquid is exiting the filter to determine whether the filter is abnormal. When the filter is judged to be abnormal at any time, the data analysis module sends an abnormal signal to the result output module. When the result output module receives an abnormal signal, it sends a prompt to the detection personnel.

[0005] Preferably, the correction value of the concentration of particles in the liquid during the liquid inlet is The algorithm formula is as follows: In the formula, It indicates the average of 20 values ​​in the particle concentration group of the liquid when the liquid is introduced. Indicates the 20th value in the numerical group of particle concentration in the liquid when the liquid is introduced. There are 20 data in the numerical group representing the particle concentration content in the liquid when the liquid is introduced.

[0006] Preferably, the correction value of the particle concentration in the liquid when the liquid is discharged is The algorithm formula is as follows: In the formula, It indicates the average of 20 values ​​in the particle concentration group of the liquid when the liquid is discharged. Indicates the 20th value in the numerical group of particle concentration in the liquid when the liquid is discharged. There are 20 data in the numerical group representing the particle concentration content in the liquid when the liquid is discharged.

[0007] Preferably, the velocity correction value of the liquid when it flows out of the filter is The algorithm formula is as follows: In the formula, It represents the 10th value in a group of 10 velocity values ​​when flowing out of the filter. Indicates the weight of the 10th value in the velocity value group when flowing out of the filter. The weight is a fixed value and its value range is 0.9~0.95.

[0008] Preferably, the velocity correction value of the liquid when entering the filter is The algorithm formula is as follows: In the formula, It represents the 10th value in the group of 10 speed values ​​entering the filter. Indicates the weight of the 10th value in the speed value group when entering the filter. The weight is a fixed value and its value range is 0.9~0.95.

[0009] Preferably, the liquid pressure correction value during liquid inlet is The algorithm formula is as follows: In the formula, It means that there are 10 filter liquid pressure values ​​in the filter liquid pressure value group. It represents the tenth filter filling liquid pressure value in the filter filling liquid pressure value group.

[0010] Preferably, the liquid pressure correction value when the liquid is discharged is The algorithm formula is as follows: In the formula, It means that there are 10 filter outlet liquid pressure values ​​in the filter outlet liquid pressure value group. Indicates the tenth filter outlet liquid pressure value in the filter outlet liquid pressure value group.

[0011] Preferably, the data analysis module receives the corrected value of the particle concentration in the liquid during the liquid inlet. , Correction value of particle concentration in liquid when discharging , the velocity correction value of the liquid flowing out of the filter , the velocity correction value when the liquid enters the filter , Liquid pressure correction value when liquid is inlet And the liquid pressure correction value when discharging liquid Temporarily stored in the internal storage medium, and the storage medium is also set with the inlet and outlet liquid particle concentration difference threshold , Inlet and outlet flow rate difference threshold And the threshold of the pressure difference between the inlet and outlet .

[0012] Preferably, the data analysis module determines the criteria as follows: when - When the filter filters the liquid, it determines that the content of particles in the liquid exceeds the standard, and sends an abnormal signal to the result output module; when - When the filter inlet and outlet flow rates are abnormal, the abnormality signal is sent to the result output module; when - When the filter pressure is abnormal, leakage occurs, and an abnormal signal is sent to the result output module.

[0013] Preferably, when the result output module receives any one or more abnormal signals, it issues a prompt to the detection personnel and displays the reason for the abnormality to the detection personnel.

[0014] Compared with the prior art, the present invention provides a filter quality detection system, which has the following beneficial effects: The present invention collects the particle concentration content in the liquid when the liquid enters and exits, the speed value of the liquid when the liquid enters and exits, and the liquid pressure value when the liquid enters and exits, and cleans the abnormal values ​​among these values ​​to obtain the corresponding correction value, and compares the correction value with the corresponding threshold value to determine whether the filter has an abnormality. When any abnormal data appears, the data analysis module determines that the filter is abnormal and sends an abnormal signal. Then, when the filter is detected, its filtering effect, pressure and flow rate can be detected at the same time, which shortens the detection time and improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the system flow of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] In order to detect the pressure, flow rate and filtering effect of the filter at the same time, a filter quality detection system is proposed. Figure 1 ,The system includes: a data acquisition module, a data preprocessing module, a data analysis module and a result output module; The data acquisition module includes a particle concentration acquisition unit, an outlet flow rate acquisition unit, an inlet flow rate acquisition unit and an inlet and outlet pressure acquisition unit, wherein; The particle concentration collection unit is used to collect the particle concentration value in the liquid when the filter is filled with liquid. And the concentration of particles in the liquid when the filter is discharged , and the particle concentration content value in the liquid when the liquid is discharged and the particle concentration content value in the liquid when the liquid is inlet are grouped into 20 values ​​respectively. By collecting the particle concentration content in the liquid when the liquid is inlet and outlet, the two data can be processed, and by observing the difference between the two, the filtering effect of the filter can be evaluated; The liquid flow rate collection unit is used to collect the velocity value of the liquid when it flows out of the filter , the velocity value when flowing out of the filter Each group of 10 values, the liquid inlet flow rate collection unit is used to collect the speed value of the liquid entering the filter , the velocity of the liquid entering the filter Every 10 values ​​form a group. Since the filtering effect of the filter is affected by the inlet flow rate and the outlet flow rate, when the inlet flow rate is greater than the outlet flow rate, the liquid can stay in the filter for a longer time. Therefore, it is particularly important to collect the inlet flow rate and the outlet flow rate, which can be used to evaluate whether the filter flow rate is abnormal later. The inlet and outlet liquid pressure collection unit is used to collect the liquid pressure value when the filter is inlet and the liquid pressure value when the filter is outlet, and these two values ​​are grouped into 10 values. By collecting the liquid pressure values ​​when the filter is inlet and outlet, it can be evaluated whether the filter is leaking according to the inlet and outlet liquid pressure values. When leakage occurs, there is a large error between the two pressure values. The data acquisition module sends the collected data to the data preprocessing module through the network. The data preprocessing module calculates the particle concentration value in the liquid according to the algorithm model. , the particle concentration value in the liquid when the filter is discharged , the velocity value of the liquid when it flows out of the filter , the velocity value of the liquid when it enters the filter , Liquid pressure value when liquid is inlet And the liquid pressure value when the liquid is discharged Perform preprocessing to eliminate abnormal data and obtain the corresponding correction value of particle concentration in the liquid when the liquid is inlet , Correction value of particle concentration in liquid when discharging , the velocity correction value of the liquid flowing out of the filter , the velocity correction value when the liquid enters the filter , Liquid pressure correction value when liquid is inlet And the liquid pressure correction value when discharging liquid , the data preprocessing module sends the multiple correction values ​​obtained through preprocessing to the data analysis module through the network; The specific algorithm formula is as follows: Correction value of particle concentration in liquid during liquid inlet The algorithm formula is as follows: In the formula, It indicates the average of 20 values ​​in the particle concentration group of the liquid when the liquid is introduced. Indicates the 20th value in the numerical group of particle concentration in the liquid when the liquid is introduced. It indicates that there are 20 data in the numerical group of particle concentration in the liquid when the liquid is introduced; Correction value of particle concentration in liquid at the time of discharge The algorithm formula is as follows: In the formula, It indicates the average of 20 values ​​in the particle concentration group of the liquid when the liquid is discharged. Indicates the 20th value in the numerical group of particle concentration in the liquid when the liquid is discharged. There are 20 data in the numerical group indicating the concentration of particles in the liquid when the liquid is discharged; Correction value for the velocity of the liquid when it leaves the filter The algorithm formula is as follows: In the formula, It represents the 10th value in a group of 10 velocity values ​​when flowing out of the filter. Indicates the weight of the 10th value in the velocity value group when flowing out of the filter. The weight is a fixed value, and its value range is 0.9~0.95; Correction value for the velocity of the liquid entering the filter The algorithm formula is as follows: In the formula, It represents the 10th value in the group of 10 speed values ​​entering the filter. Indicates the weight of the 10th value in the speed value group when entering the filter. The weight is a fixed value, and its value range is 0.9~0.95; Liquid pressure correction value when filling liquid The algorithm formula is as follows: In the formula, It means that there are 10 filter liquid pressure values ​​in the filter liquid pressure value group. Indicates the tenth filter liquid pressure value when liquid is being filled in the filter liquid pressure value group; Liquid pressure correction value when discharging liquid The algorithm formula is as follows: In the formula, It means that there are 10 filter outlet liquid pressure values ​​in the filter outlet liquid pressure value group. Indicates the tenth filter outlet liquid pressure value in the filter outlet liquid pressure value group; By calculating the correction value of each data value, the abnormal values ​​in the collected data group can be eliminated, the influence of the abnormal values ​​on the calculation results can be reduced, the accuracy of the calculation results can be improved, and thus the accuracy of the test results can be increased; The data analysis module receives the correction value of the particle concentration in the liquid when the liquid is fed , Correction value of particle concentration in liquid when discharging , the velocity correction value of the liquid flowing out of the filter , the velocity correction value when the liquid enters the filter , Liquid pressure correction value when liquid is inlet And the liquid pressure correction value when discharging liquid Temporarily stored in the internal storage medium, and the storage medium is also set with the inlet and outlet liquid particle concentration difference threshold , Inlet and outlet flow rate difference threshold And the threshold of the pressure difference between the inlet and outlet The data analysis module is based on the particle concentration value in the liquid when the liquid is introduced. The particle concentration value in the liquid when the filter is discharged By comparison, determine whether there is any abnormality in the filter. The data analysis module corrects the speed of the liquid flowing out of the filter. Correction value for the velocity of the liquid entering the filter By comparison, we can judge whether there is any abnormality in the filter. The data analysis module will correct the liquid pressure when the liquid is inlet. And the correction value of liquid pressure when discharging liquid By comparison, it is determined whether the filter is abnormal. When any filter is judged to be abnormal, the data analysis module sends an abnormal signal to the result output module. The specific judgment criteria are as follows: when - When the filter filters the liquid, it determines that the content of particles in the liquid exceeds the standard, and sends an abnormal signal to the result output module; when - When the filter inlet and outlet flow rates are abnormal, the abnormality signal is sent to the result output module; when - When the filter pressure is abnormal, leakage occurs, and an abnormal signal is sent to the result output module; When the result output module receives any one or more abnormal signals, it will issue a prompt to the inspector and display the cause of the abnormality to the inspector. The inspector will mark the corresponding fault for the abnormal filter based on the displayed cause of the abnormality.

[0018] By collecting the particle concentration content in the liquid when it enters and exits, the speed value of the liquid when it enters and exits, and the liquid pressure value when it enters and exits, and cleaning the abnormal values ​​in these values, the corresponding correction value is obtained, and the correction value is compared with the corresponding threshold value to determine whether the filter has an abnormality. When any abnormal data appears, the data analysis module determines that the filter is abnormal and sends an abnormal signal. Then, when testing the filter, its filtering effect, pressure and flow rate can be tested at the same time, shortening the detection time and improving the detection efficiency.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter quality detection system, characterized in that: It includes data acquisition module, data preprocessing module, data analysis module and result output module; The data acquisition module includes a particle concentration acquisition unit, an outflow rate acquisition unit, an inflow rate acquisition unit, and an inflow and outflow pressure acquisition unit, wherein; The particle concentration collection unit is used to collect the particle concentration value in the liquid when the filter is filled with liquid. And the concentration of particles in the liquid when the filter is discharged , and the particle concentration content values ​​in the liquid when the liquid is discharged and the particle concentration content values ​​in the liquid when the liquid is inlet are grouped into 20 values ​​respectively; The liquid outflow velocity collection unit is used to collect the velocity value of the liquid when it flows out of the filter. , the velocity value when flowing out of the filter Each group consists of 10 values. The liquid inlet flow rate collection unit is used to collect the speed value of the liquid entering the filter. , the velocity value of the liquid when it enters the filter Each group consists of 10 values; The inlet and outlet liquid pressure collection unit is used to collect the liquid pressure values ​​when the filter is filled with liquid. And the liquid pressure value when the filter is discharged , and these two values ​​are grouped into groups of 10; The data acquisition module sends the collected data to the data preprocessing module through the network. The data preprocessing module calculates the particle concentration value in the liquid when the liquid is injected according to the algorithm model. , the particle concentration value in the liquid when the filter is discharged , the velocity value of the liquid when it flows out of the filter , the velocity value of the liquid when it enters the filter , Liquid pressure value when liquid is inlet And the liquid pressure value when the liquid is discharged Perform preprocessing to eliminate abnormal data and obtain the corresponding correction value of particle concentration in the liquid when the liquid is inlet , Correction value of particle concentration in liquid when discharging , the velocity correction value of the liquid flowing out of the filter , the velocity correction value of the liquid entering the filter , Liquid pressure correction value when liquid is inlet And the liquid pressure correction value when the liquid is discharged , the data preprocessing module sends the multiple correction values ​​obtained through preprocessing to the data analysis module through the network; The data analysis module is based on the particle concentration value in the liquid when the liquid is fed. The particle concentration value in the liquid when the filter is discharged By comparison, it is determined whether there is an abnormality in the filter. The data analysis module corrects the speed of the liquid flowing out of the filter. Correction value for the velocity of the liquid entering the filter By comparison, it is determined whether the filter is abnormal. The data analysis module corrects the liquid pressure when the liquid is inlet. And the correction value of liquid pressure when discharging liquid By comparison, it is determined whether the filter is abnormal. When it is determined that the filter is abnormal at any time, the data analysis module sends an abnormal signal to the result output module; When the result output module receives an abnormal signal, it sends a prompt to the detection personnel.

2. A filter quality detection system according to claim 1, characterized in that: The correction value of the particle concentration in the liquid during liquid inlet The algorithm formula is as follows: In the formula, It indicates the average of 20 values ​​in the particle concentration group of the liquid when the liquid is introduced. Indicates the 20th value in the numerical group of particle concentration in the liquid when the liquid is introduced. There are 20 data in the numerical group representing the particle concentration content in the liquid when the liquid is introduced.

3. A filter quality detection system according to claim 1, characterized in that: The correction value of the particle concentration in the liquid at the time of liquid discharge The algorithm formula is as follows: In the formula, It indicates the average of 20 values ​​in the particle concentration group of the liquid when the liquid is discharged. Indicates the 20th value in the numerical group of particle concentration in the liquid when the liquid is discharged. There are 20 data in the numerical group representing the particle concentration content in the liquid when the liquid is discharged.

4. A filter quality detection system according to claim 1, characterized in that: The velocity correction value of the liquid as it flows out of the filter The algorithm formula is as follows: In the formula, It represents the 10th value in a group of 10 velocity values ​​when flowing out of the filter. Indicates the weight of the 10th value in the velocity value group when flowing out of the filter. The weight is a fixed value and its value range is 0.9~0.

95.

5. The filter quality detection system according to claim 1, characterized in that: Correction value for the velocity of the liquid as it enters the filter The algorithm formula is as follows: In the formula, It represents the 10th value in the group of 10 speed values ​​entering the filter. Indicates the weight of the 10th value in the speed value group when entering the filter. The weight is a fixed value and its value range is 0.9~0.

95.

6. A filter quality detection system according to claim 1, characterized in that: The liquid pressure correction value when the liquid is inlet The algorithm formula is as follows: In the formula, It means that there are 10 filter liquid pressure values ​​in the filter liquid pressure value group. It represents the tenth filter filling liquid pressure value in the filter filling liquid pressure value group.

7. A filter quality detection system according to claim 1, characterized in that: The liquid pressure correction value when the liquid is discharged The algorithm formula is as follows: In the formula, It means that there are 10 filter outlet liquid pressure values ​​in the filter outlet liquid pressure value group. Indicates the tenth filter outlet liquid pressure value in the filter outlet liquid pressure value group.

8. A filter quality detection system according to claim 2 or 3 or 4 or 5 or 6 or 7, characterized in that: The data analysis module receives the correction value of the concentration of particles in the liquid during the liquid inlet. , Correction value of particle concentration in liquid when discharging , the velocity correction value of the liquid flowing out of the filter , the velocity correction value when the liquid enters the filter , Liquid pressure correction value when liquid is inlet And the liquid pressure correction value when discharging liquid Temporarily stored in the internal storage medium, and the storage medium is also set with the inlet and outlet liquid particle concentration difference threshold , Inlet and outlet flow rate difference threshold And the threshold of the pressure difference between the inlet and outlet .

9. A filter quality detection system according to claim 8, characterized in that: The data analysis module judgment criteria are as follows: when - When the filter filters the liquid, it determines that the content of particles in the liquid exceeds the standard, and sends an abnormal signal to the result output module; when - When the filter inlet and outlet flow rates are abnormal, an abnormal signal is sent to the result output module; when - When the filter pressure is abnormal, leakage occurs, and an abnormal signal is sent to the result output module.

10. A filter quality detection system according to claim 9, characterized in that: When the result output module receives any one or more abnormal signals, it issues a prompt to the detection personnel and displays the reason for the abnormality to the detection personnel.

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