Method and device for determining remaining life of dust removal filter bag, electronic device and storage medium

Abstract

The present application provides a method and device for determining the remaining life of a dust removal cloth bag, an electronic device, and a storage medium. Among them, the method includes: obtaining the used time, breaking strength, clean filter media resistance, and air permeability of the dust removal cloth bag; obtaining the remaining life of the breaking strength according to the used time, breaking strength, and a first preset formula; obtaining the remaining life of the clean filter media according to the used time, clean filter media resistance, and a second preset formula; obtaining the remaining life of the air permeability according to the used time, air permeability, and a third preset formula; and obtaining the remaining life of the dust removal cloth bag according to the remaining life of the breaking strength, the remaining life of the clean filter media, the remaining life of the air permeability, and a fourth preset formula. Through the present application, the problem in the related art that an accurate remaining life of the dust removal cloth bag cannot be obtained is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal filter bag detection, and in particular, to a method and device for determining the remaining life of a dust removal cloth bag, an electronic device, and a storage medium. Background Art

[0002] Under the current situation that thermal power units need to achieve ultra-low dust emissions, bag filters are important control devices for enabling thermal power units to meet the dust emission concentration standards. The resistance characteristics of the clean filter media and the air permeability of the dust removal filter bags in bag filters are important parameters affecting their remaining life. However, after the bag filter is put into use, dust particles will continuously accumulate in the filter media of the dust removal filter bag, resulting in relatively obvious changes in the resistance characteristics of the filter media and the air permeability of the dust removal filter bag, thereby affecting the remaining life of the dust removal filter bag. In addition, the filter media will be affected by factors such as physical wear and chemical erosion, resulting in a decrease in the breaking strength of the dust removal filter bag and being prone to breakage, which will also affect the remaining life of the dust removal filter bag. During use, the remaining life of the dust removal filter bag continuously decays, and the dust removal performance of the dust removal filter bag continuously deteriorates, and it may not be able to meet the requirements of reducing dust emissions. Therefore, it is necessary to accurately evaluate the remaining life of the dust removal filter bag and timely replace the dust removal filter bag with insufficient remaining life. However, the existing technology cannot obtain the accurate remaining life of the dust removal filter bag.

[0003] Therefore, it is necessary to research and develop a method for determining the remaining life of a dust removal filter bag that can comprehensively consider the above factors to determine whether the dust removal filter bag needs to be replaced. Summary of the Invention

[0004] The present application provides a method and device for determining the remaining life of a dust removal filter bag, an electronic device, and a storage medium, so as to at least solve the problem in the related art that the accurate remaining life of the dust removal filter bag cannot be obtained.

[0005] According to one aspect of the embodiments of the present application, a method for determining the remaining life of a dust removal filter bag is provided, and the method includes:

[0006] Obtain the used time, breaking strength, clean filter media resistance, and air permeability of the dust removal filter bag;

[0007] Obtain the remaining life of the breaking strength according to the used time, the breaking strength, and a first preset formula;

[0008] Obtain the remaining life of the clean filter media according to the used time, the clean filter media resistance, and a second preset formula;

[0009] Obtain the remaining life of the air permeability according to the used time, the air permeability, and a third preset formula;

[0010] The remaining life of the dust removal bag is obtained according to the remaining life of the breaking strength, the remaining life of the clean filter material, the remaining life of the air permeability, and a fourth preset formula.

[0011] According to another aspect of the embodiments of the present application, there is also provided a device for determining the remaining life of a dust removal bag, the device includes:

[0012] An acquisition module, configured to acquire the used time, breaking strength, clean filter material resistance, and air permeability of the dust removal bag;

[0013] A first obtaining module, configured to obtain the remaining life of the breaking strength according to the used time, the breaking strength, and a first preset formula;

[0014] A second obtaining module, configured to obtain the remaining life of the clean filter material according to the used time, the clean filter material resistance, and a second preset formula;

[0015] A third obtaining module, configured to obtain the remaining life of the air permeability according to the used time, the air permeability, and a third preset formula;

[0016] A fourth obtaining module, configured to obtain the remaining life of the dust removal bag according to the remaining life of the breaking strength, the remaining life of the clean filter material, the remaining life of the air permeability, and a fourth preset formula.

[0017] Optionally, the acquisition module includes:

[0018] A first acquisition unit, configured to acquire a clean filter material resistance data set within a preset time period when the air flow velocity passing through the clean filter material sample is a preset velocity, wherein the clean filter material sample is used to determine the clean filter material resistance;

[0019] A first obtaining unit, configured to obtain the absolute value of the average gradient according to the clean filter material resistance data set;

[0020] A first judgment unit, configured to judge whether the absolute value of the average gradient is less than a preset threshold, and if so, obtain the clean filter material resistance according to the clean filter material resistance data set.

[0021] A second acquisition unit, configured to acquire a preset pressure drop;

[0022] A second obtaining unit, configured to obtain the air permeability based on the preset pressure drop.

[0023] Optionally, the first acquisition unit includes:

[0024] An acquisition sub-module, configured to acquire a weight data group of the filter material sample processed by a preset method, wherein the weight data group includes a preset number of weight data;

[0025] The first obtaining sub-module is configured to obtain the average value of the weight data according to the weight data group;

[0026] The second obtaining sub-module is configured to obtain the mean absolute error according to each of the weight data and the average value;

[0027] The judging sub-module is configured to judge whether the mean absolute error is less than a second preset threshold. If it is less than, the filter media sample is the clean filter media sample; otherwise, subsequent steps are executed starting from the weight data group of the filter media sample processed by the obtaining preset method.

[0028] Optionally, the second obtaining module includes:

[0029] The third obtaining unit is configured to obtain the initial value of the clean filter media resistance and the critical value of the clean filter media resistance corresponding to the clean filter media resistance;

[0030] The third obtaining unit is configured to obtain the remaining life of the clean filter media according to the used time, the clean filter media resistance, the initial value of the clean filter media resistance, the critical value of the clean filter media resistance, and the second preset formula.

[0031] Optionally, the third obtaining module includes:

[0032] The fourth obtaining unit is configured to obtain the initial value of the air permeability and the critical value of the air permeability corresponding to the air permeability;

[0033] The fourth obtaining unit is configured to obtain the remaining life of the air permeability according to the used time, the air permeability, the initial value of the air permeability, the critical value of the air permeability, and the third preset formula.

[0034] Optionally, the first obtaining module includes:

[0035] The second judging unit is configured to judge whether the warp breaking strength is less than the weft breaking strength. If it is less than, the warp breaking strength is used as the target breaking strength; otherwise, the weft breaking strength is used as the target breaking strength;

[0036] The fifth obtaining unit is configured to obtain the initial value of the breaking strength and the critical value of the breaking strength corresponding to the target breaking strength;

[0037] The fifth obtaining unit is configured to obtain the remaining life of the breaking strength according to the used time, the target breaking strength, the initial value of the breaking strength, the critical value of the breaking strength, and the first preset formula.

[0038] According to another aspect of the embodiments of the present application, an electronic device is further provided, including a processor, a communication interface, a memory, and a communication bus. Among them, the processor, the communication interface, and the memory complete communication with each other through the communication bus. Among them, the memory is used to store a computer program. The processor is used to execute the method steps in any of the above embodiments by running the computer program stored on the memory.

[0039] According to another aspect of the embodiments of the present application, a computer-readable storage medium is further provided. A computer program is stored in the storage medium. Among them, the computer program is set to execute the method steps in any of the above embodiments when running.

[0040] In the embodiments of the present application, by obtaining the used time, breaking strength, clean filter media resistance, and air permeability of the dust removal cloth bag; obtaining the remaining life of the breaking strength according to the used time, breaking strength, and a first preset formula; obtaining the remaining life of the clean filter media according to the used time, clean filter media resistance, and a second preset formula; obtaining the remaining life of the air permeability according to the used time, air permeability, and a third preset formula; obtaining the remaining life of the dust removal cloth bag according to the remaining life of the breaking strength, the remaining life of the clean filter media, the remaining life of the air permeability, and a fourth preset formula. Since the embodiments of the present application first obtain the used time, breaking strength, clean filter media resistance, and air permeability of the dust removal cloth bag, then use the corresponding formulas to obtain the remaining life of the breaking strength, the remaining life of the clean filter media resistance, and the remaining life of the air permeability respectively, and finally obtain the final remaining life of the dust removal cloth bag after comprehensively considering the above three remaining lives. The remaining life of the dust removal cloth bag obtained in this way is obtained after comprehensively considering the attenuation of the mechanical properties and the change characteristics of the physical properties of the dust removal cloth bag, which is more reasonable and accurate. It solves the problem that it is impossible to obtain the accurate remaining life of the dust removal cloth bag in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present invention and used together with the specification to explain the principles of the present invention.

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0043] Figure 1 It is a schematic flowchart of an optional method for determining the remaining life of a dust removal cloth bag according to the embodiments of the present application;

[0044] Figure 2It is a structural block diagram of an optional device for determining the remaining life of a dust removal cloth bag according to an embodiment of the present application;

[0045] Figure 3 It is a structural block diagram of an optional electronic device according to an embodiment of the present application. Detailed implementation manners

[0046] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0047] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily need to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0048] In the current situation where thermal power units need to achieve ultra-low dust emissions, bag filters are important control devices for making the dust emission concentration of thermal power units meet the standards. During use, the remaining life of the dust removal cloth bag continuously decays, and the dust removal performance of the dust removal cloth bag continuously deteriorates, which may not be able to meet the requirements of reducing dust emissions. Therefore, it is necessary to accurately evaluate the remaining life of the dust removal cloth bag and timely replace the dust removal cloth bag with insufficient remaining life. Based on this, according to one aspect of the embodiments of the present application, a method for determining the remaining life of a dust removal cloth bag is provided. As Figure 1 shown, the process of this method may include the following steps:

[0049] Step S101, obtain the used time, breaking strength, clean filter media resistance, and air permeability of the dust removal cloth bag.

[0050] Optionally, the used time is the actual operating hours of the dust removal cloth bag in the dust collector.

[0051] The breaking strength of the dust removal cloth bag has warp and weft breaking strengths. There is no definite connection between the warp and weft breaking strengths, and they need to be discussed separately. Take warp and weft samples from the dust removal cloth bag. The samples are filter material blocks of 200mm×50mm. Fix one end with a fixture and connect the other end to a moving force-applying component. Stretch the sample until it breaks completely. The force of the force-applying component at this time is the breaking strength. Repeat the above steps to obtain the warp and weft breaking strengths respectively. The unit of the breaking strength is N.

[0052] The resistance of the clean filter material is obtained by calculating the air pressure difference of the air flow before and after passing through the clean filter material. The clean filter material here is obtained from the dust removal cloth bag. The unit of the clean filter material resistance is Pa.

[0053] According to the actual use situation, set the air flow pressure drop passing through the dust removal cloth bag, and calculate the air permeability according to the volume of the air flow penetrating the dust removal cloth bag per unit time and per unit area. The unit of the air permeability is m 3 / (m 2 ×min).

[0054] Step S102, obtain the remaining life of the breaking strength according to the used time, the breaking strength and the first preset formula.

[0055] Optionally, set different minimum breaking strength values according to the use scenario and use requirements of the dust removal cloth bag, then analyze the breaking strength of the dust removal cloth bag after being used for a certain time and the breaking strength at the time of leaving the factory, and combine the used time of the dust removal cloth bag to obtain the first preset formula representing the relationship between the change amount of the breaking strength and the use time.

[0056] Then substitute the smaller value of the above warp and weft breaking strengths and the used time into the obtained first preset formula, and the remaining life of the breaking strength, that is, the remaining life of the breaking strength, can be obtained through calculation.

[0057] Step S103, obtain the remaining life of the clean filter material according to the used time, the clean filter material resistance and the second preset formula.

[0058] Optionally, as the use time of the dust removal cloth bag increases continuously, the filter material in the dust removal cloth bag will be affected by physical and chemical erosion, which will in turn affect the service life of the dust removal cloth bag. The degree of the above influence can be determined by the clean filter material resistance, and then the remaining life of the dust removal cloth bag can be evaluated. In actual use, it is found that the influence of physical and chemical erosion on the dust removal cloth bag is uniform within a certain time, that is, the above influence increases uniformly with the use time, and the above relationship can be reflected by the second preset formula.

[0059] Calculate the remaining life of the clean filter material, that is, the remaining life of the clean filter material, according to the used time, the clean filter material resistance at this time and the second preset formula.

[0060] Step S104: Obtain the remaining life of the air permeability according to the used time, the air permeability, and a third preset formula.

[0061] Optionally, the air permeability can reflect the ability of air flow to pass through the filter material in the dust removal bag. According to the used time of the dust removal bag, the current air permeability, and a third preset formula reflecting the relationship between the air permeability and time, the remaining life of the air permeability, that is, the remaining life of the air permeability, can be calculated.

[0062] Step S105: Obtain the remaining life of the dust removal bag according to the remaining life of the breaking strength, the remaining life of the clean filter material, the remaining life of the air permeability, and a fourth preset formula.

[0063] Optionally, after obtaining the remaining life of the breaking strength, the remaining life of the clean filter material, and the remaining life of the air permeability, since the dust removal bag can continue to be used only when the breaking strength, the resistance of the clean filter material, and the air permeability all meet the usage requirements. For example, if the current breaking strength of the dust removal bag is very low, there are easily gaps on the dust removal bag, and instead, the resistance of the clean filter material will decrease and the air permeability will increase. Obviously, at this time, the dust is more likely to penetrate the dust removal bag, and the dust removal bag cannot meet the dust removal requirements. Therefore, according to the cask effect, the smallest of the three remaining lives is selected as the final remaining life of the dust removal bag, as shown in formula (1), that is, the fourth preset formula:

[0064]

[0065] where T F 、 T p 、T C are the estimated life of the breaking strength, the estimated life of the clean filter material, the estimated life of the air permeability, and the evaluation value of the remaining life of the dust removal bag, that is, the remaining life of the dust removal bag, respectively.

[0066] In an embodiment of the present application, the used time, breaking strength, clean filter media resistance, and air permeability of a dust removal cloth bag are obtained; the remaining life of the breaking strength is obtained according to the used time, breaking strength, and a first preset formula; the remaining life of the clean filter media is obtained according to the used time, clean filter media resistance, and a second preset formula; the remaining life of the air permeability is obtained according to the used time, air permeability, and a third preset formula; and the remaining life of the dust removal cloth bag is obtained according to the remaining life of the breaking strength, the remaining life of the clean filter media, the remaining life of the air permeability, and a fourth preset formula. Since in the embodiment of the present application, the used time, breaking strength, clean filter media resistance, and air permeability of the dust removal cloth bag are first obtained, and then the remaining life of the breaking strength, the remaining life of the clean filter media resistance, and the remaining life of the air permeability are obtained by using the corresponding formulas respectively, and finally the final remaining life of the dust removal cloth bag is obtained after comprehensively considering the above three types of remaining lives, the remaining life of the dust removal cloth bag obtained in this way is obtained after comprehensively considering the attenuation of the mechanical properties of the cloth bag and the change characteristics of the physical properties, which is more reasonable and accurate. It solves the problem in the related art that an accurate remaining life of the dust removal cloth bag cannot be obtained.

[0067] As an alternative embodiment, obtaining the clean filter media resistance of the dust removal cloth bag includes:

[0068] When the air flow velocity through the clean filter media sample is a preset velocity, a clean filter media resistance data set within a preset time period is obtained, where the clean filter media sample is used to determine the clean filter media resistance;

[0069] The absolute value of the average gradient is obtained according to the clean filter media resistance data set;

[0070] It is determined whether the absolute value of the average gradient is less than a preset threshold. If it is less than, the clean filter media resistance is obtained according to the clean filter media resistance data set.

[0071] Optionally, the clean filter media resistance reflects the degree of energy loss of the dust removal cloth bag during the filtration process. The lower the clean filter media resistance, the smaller the filtration load, the lower the operating cost, and the longer the service life of the dust removal cloth bag.

[0072] Stabilize the air flow velocity through the clean filter media sample at 1.85 m 3 / h, measure the clean filter media resistance, and continuously record for 5 minutes, i.e., the preset time period, to obtain the clean filter media resistance data set. At this time, the preset velocity is 1.85 m 3 / h, and the preset velocity can be adjusted according to the usage scenario and usage requirements of the dust removal cloth bag.

[0073] Calculate the average gradient of the clean filter media resistance in the clean filter media resistance data set.

[0074] When the absolute value of the above average gradient is less than 0.5, it is considered that the clean filter media resistance data set conforms to the true value, and then the average value of the clean filter media resistance in the clean filter media resistance data set is calculated as the final clean filter media resistance. At this time, the first preset threshold is 0.5, which can be adjusted according to requirements.

[0075] In the embodiment of the present application, by recording the clean filter media resistance data set within 5 minutes and judging whether it conforms to the true value according to the average gradient of the clean filter media resistance data set, and then using the average value of the clean filter media resistance data set as the final clean filter media resistance, on the one hand, it makes up for the blank in the detection of the clean filter media resistance of the dust removal cloth bag in the industry, and on the other hand, the data is accurate, the operation is simple, and it provides a basis for calculating the clean filter media life value in the future.

[0076] As an alternative embodiment, before obtaining the clean filter media resistance data set within a preset time period when the air flow velocity through the clean filter media sample is the preset velocity, the method further includes:

[0077] Obtaining a weight data group of the filter media sample processed by a preset method, where the weight data group includes a preset number of weight data;

[0078] Obtaining the average value of the weight data according to the weight data group;

[0079] Obtaining the mean absolute error according to each weight data and the average value;

[0080] Judging whether the mean absolute error is less than a second preset threshold. If it is less, the filter media sample is a clean filter media sample; otherwise, the subsequent steps are executed starting from obtaining the weight data group of the filter media sample processed by the preset method.

[0081] Optionally, a circular filter media sample with a diameter of 155 mm is intercepted from the dust removal cloth bag, and a dust suction device with an elliptical or circular dust suction port with a cross-sectional area of 23 - 25 cm 2 and a vacuum degree of 2 kPa is used to perform dust suction treatment on the filter media sample. During dust suction, it is necessary to cover the surface of the filter bag sample and perform reciprocating dust suction within 60 s. After the dust suction is completed, the filter bag is weighed with a centesimal balance, repeated 3 times, and 3 weight data are obtained. The 3 weight data are formed into a weight data group, and the preset number is 3.

[0082] Calculating the average value of the 3 weight data, successively subtracting the average value from the 3 weight data, and then dividing by the average value to finally obtain 3 absolute errors.

[0083] Take the absolute values of the 3 absolute errors first, and then calculate the average of the 3 absolute errors to obtain the mean absolute error. If the mean absolute error is less than 1% (i.e., the second preset threshold), the current filter media sample is a clean filter media sample. If the mean absolute error is greater than 1%, re-vacuum the filter media sample and perform subsequent weighing and calculation.

[0084] In the embodiment of the present application, first intercept a filter media sample from the dust removal cloth bag, then perform a dust suction treatment on the filter media sample, and judge whether the filter media sample is clean by calculating 3 weight data until a clean filter media sample is obtained, providing a basis for subsequent measurement and calculation of the resistance of the clean filter media.

[0085] As an alternative embodiment, obtaining the remaining life of the clean filter media according to the used time, the resistance of the clean filter media, and the second preset formula includes:

[0086] Obtain the initial value of the resistance of the clean filter media corresponding to the resistance of the clean filter media and the critical value of the resistance of the clean filter media;

[0087] Obtain the remaining life of the clean filter media according to the used time, the resistance of the clean filter media, the initial value of the resistance of the clean filter media, the critical value of the resistance of the clean filter media, and the second preset formula.

[0088] Optionally, the resistance of the clean filter media corresponding to the newly manufactured dust removal cloth bag is called the initial value of the resistance of the clean filter media The resistance of the clean filter media when the dust removal cloth bag can meet the lowest dust removal requirement is called the critical value of the resistance of the clean filter media Critical value Usually take a fixed empirical value.

[0089] Substitute the used time t, The resistance of the clean filter media into the second preset formula, i.e., formula (2), to obtain the remaining life of the clean filter media If Less than or equal to It means that the remaining life of the clean filter media of the dust removal cloth bag is 0 and needs to be replaced.

[0090]

[0091] In the embodiment of the present application, first represent the relationship between the change in the resistance of the clean filter media and the used time by the second preset formula, and then substitute the respective data of the current cloth bag, and calculate the remaining life of the clean filter media. The method is easy to implement and the value is accurate, providing a basis for subsequent obtaining of the final remaining life.

[0092] As an alternative embodiment, obtaining the air permeability of the dust removal cloth bag includes:

[0093] Obtain the preset pressure drop;

[0094] Based on a preset pressure drop, the air permeability is obtained.

[0095] Optionally, the air permeability, also known as the air flow rate, is the volume of air flowing through the filter material of the dust removal bag per unit area per unit time obtained through measurement and calculation under a pressure drop of 200 Pa, which is the preset pressure drop, and is denoted as the air permeability P. t .

[0096] In the embodiments of the present application, the air permeability is used to reflect the ability of air to pass through the dust removal bag, which is convenient for measurement and calculation and provides a basis for calculating the remaining life of the air permeability.

[0097] As an alternative embodiment, obtaining the remaining life of the air permeability according to the used time, the air permeability, and a third preset formula includes:

[0098] Obtaining the initial value of the air permeability and the critical value of the air permeability corresponding to the air permeability;

[0099] Obtaining the remaining life of the air permeability according to the used time, the air permeability, the initial value of the air permeability, the critical value of the air permeability, and the third preset formula.

[0100] Optionally, the air permeability corresponding to a newly manufactured dust removal bag is called the initial value of the air permeability P 0 , and the air permeability at which the dust removal bag can meet the lowest dust removal requirement is called the critical value of the air permeability P c , and the critical value P c usually takes a fixed empirical value.

[0101] Substitute the used time t, P 0 , the air permeability P t , P c into the third preset formula, i.e., formula (3), to obtain the remaining life of the air permeability T p . If P t is less than or equal to P c , it means that the remaining life of the air permeability of the dust removal bag is 0 and needs to be replaced.

[0102]

[0103] In the embodiments of the present application, first, the relationship between the change in air permeability and the used time is represented by the third preset formula, and then after substituting the data of the current bag, the remaining life of the air permeability is obtained through calculation. The method is easy to implement and the numerical value is accurate, providing a basis for obtaining the final remaining life.

[0104] As an alternative embodiment, the breaking strength includes the warp breaking strength and the weft breaking strength of the dust removal bag. Obtaining the remaining life of the breaking strength according to the used time, the breaking strength, and a first preset formula includes:

[0105] Judge whether the warp breaking strength is less than the weft breaking strength. If it is less, take the warp breaking strength as the target breaking strength; otherwise, take the weft breaking strength as the target breaking strength.

[0106] Obtain the initial breaking strength value and the breaking strength critical value corresponding to the target breaking strength.

[0107] Obtain the remaining life of the breaking strength according to the used time, the target breaking strength, the initial breaking strength value, the breaking strength critical value and the first preset formula.

[0108] Optionally, take the smaller value of the warp and weft breaking strengths as the target breaking strength, denoted as the current value F t .

[0109] Denote the breaking strength corresponding to the newly manufactured dust removal cloth bag as the initial breaking strength value F 0 , and denote the force at which the dust removal cloth bag just begins to break as the breaking strength critical value F c , and the critical value F c usually takes a fixed empirical value.

[0110] Substitute the used time t, F t , F 0 , F c into the first preset formula, i.e., formula (4), to obtain the remaining life T of the breaking strength F . In addition, if the current value F t is equal to or less than the critical value F c , it means that the remaining life of the breaking strength of the current dust removal cloth bag is 0 and needs to be replaced.

[0111]

[0112] In the embodiment of the present application, first, represent the relationship between the change in breaking strength and the used time through the first preset formula, and then substitute the respective data of the current cloth bag, and calculate the remaining life of the breaking strength. The method is easy to implement and the value is accurate, providing a basis for obtaining the final remaining life.

[0113] According to another aspect of the embodiment of the present application, there is also provided a device for determining the remaining life of a dust removal cloth bag for implementing the above method for determining the remaining life of a dust removal cloth bag. Figure 2 is a structural block diagram of an optional device for determining the remaining life of a dust removal cloth bag according to an embodiment of the present application. As Figure 2 shown, the device may include:

[0114] An acquisition module 201, configured to acquire the used time, breaking strength, clean filter medium resistance and air permeability of the dust removal cloth bag.

[0115] The first obtaining module 202 is configured to obtain the remaining life of the breaking strength according to the used time, the breaking strength, and a first preset formula;

[0116] The second obtaining module 203 is configured to obtain the remaining life of the clean filter media according to the used time, the resistance of the clean filter media, and a second preset formula;

[0117] The third obtaining module 204 is configured to obtain the remaining life of the air permeability according to the used time, the air permeability, and a third preset formula;

[0118] The fourth obtaining module 205 is configured to obtain the remaining life of the dust removal bag according to the remaining life of the breaking strength, the remaining life of the clean filter media, the remaining life of the air permeability, and a fourth preset formula.

[0119] It should be noted that the obtaining module 201 in this embodiment can be used to execute the above step S101, the first obtaining module 202 in this embodiment can be used to execute the above step S102, the first obtaining module 203 in this embodiment can be used to execute the above step S103, the first obtaining module 204 in this embodiment can be used to execute the above step S104, and the first obtaining module 205 in this embodiment can be used to execute the above step S105.

[0120] Through the above modules, first obtain the used time, breaking strength, resistance of the clean filter media, and air permeability of the dust removal bag, then use the corresponding formulas to obtain the remaining life of the breaking strength, the remaining life of the resistance of the clean filter media, and the remaining life of the air permeability respectively, and finally obtain the final remaining life of the dust removal bag after comprehensively considering the above three types of remaining lives. The remaining life of the dust removal bag obtained in this way is obtained after comprehensively considering the attenuation of the mechanical properties of the bag and the change characteristics of the physical properties, which is more reasonable and accurate. It solves the problem that it is impossible to obtain the accurate remaining life of the dust removal bag in the related art.

[0121] As an alternative embodiment, the obtaining module includes:

[0122] The first obtaining unit is configured to obtain a dataset of the resistance of the clean filter media within a preset time period when the airflow velocity through the clean filter media sample is a preset velocity, where the clean filter media sample is used to determine the resistance of the clean filter media;

[0123] The first obtaining unit is configured to obtain the absolute value of the average gradient according to the dataset of the resistance of the clean filter media;

[0124] The first judging unit is configured to judge whether the absolute value of the average gradient is less than a preset threshold. If it is less than, the resistance of the clean filter media is obtained according to the dataset of the resistance of the clean filter media.

[0125] The second obtaining unit is configured to obtain a preset pressure drop;

[0126] A second obtaining unit, configured to obtain an air permeability based on a preset pressure drop.

[0127] As an optional embodiment, the first obtaining unit includes:

[0128] An obtaining sub-module, configured to obtain a weight data set of a filter media sample processed by a preset method, where the weight data set includes a preset number of weight data;

[0129] A first obtaining sub-module, configured to obtain an average value of the weight data according to the weight data set;

[0130] A second obtaining sub-module, configured to obtain an average absolute error according to each weight data and the average value;

[0131] A judging sub-module, configured to judge whether the average absolute error is less than a second preset threshold. If it is less, the filter media sample is a clean filter media sample; otherwise, the subsequent steps are executed starting from obtaining the weight data set of the filter media sample processed by the preset method.

[0132] As an optional embodiment, the second obtaining module includes:

[0133] A third obtaining unit, configured to obtain an initial value of the clean filter media resistance and a critical value of the clean filter media resistance corresponding to the clean filter media resistance;

[0134] A third obtaining unit, configured to obtain a remaining life of the clean filter media according to the used time, the clean filter media resistance, the initial value of the clean filter media resistance, the critical value of the clean filter media resistance, and a second preset formula.

[0135] As an optional embodiment, the third obtaining module includes:

[0136] A fourth obtaining unit, configured to obtain an initial value of the air permeability and a critical value of the air permeability corresponding to the air permeability;

[0137] A fourth obtaining unit, configured to obtain a remaining life of the air permeability according to the used time, the air permeability, the initial value of the air permeability, the critical value of the air permeability, and a third preset formula.

[0138] As an optional embodiment, the first obtaining module includes:

[0139] A second judging unit, configured to judge whether the warp breaking strength is less than the weft breaking strength. If it is less, the warp breaking strength is used as the target breaking strength; otherwise, the weft breaking strength is used as the target breaking strength;

[0140] A fifth obtaining unit, configured to obtain an initial value of the breaking strength and a critical value of the breaking strength corresponding to the target breaking strength;

[0141] A fifth obtaining unit, configured to obtain the remaining life of the breaking strength according to the used time, the target breaking strength, the initial value of the breaking strength, the critical value of the breaking strength, and a first preset formula.

[0142] It should be noted here that the examples and application scenarios implemented by the above modules and the corresponding steps are the same, but are not limited to the content disclosed in the above embodiments.

[0143] According to another aspect of the embodiments of the present application, there is also provided an electronic device for implementing the method for determining the remaining life of the dust removal filter bag. The electronic device may be a server, a terminal, or a combination thereof.

[0144] Figure 3 is a structural block diagram of an optional electronic device according to an embodiment of the present application, as Figure 3 shown, including a processor 301, a communication interface 302, a memory 303, and a communication bus 304. Among them, the processor 301, the communication interface 302, and the memory 303 complete mutual communication through the communication bus 304. Among them,

[0145] The memory 303 is used to store a computer program;

[0146] The processor 301, when executing the computer program stored on the memory 303, implements the following steps:

[0147] Obtain the used time, breaking strength, clean filter material resistance, and air permeability of the dust removal filter bag;

[0148] Obtain the remaining life of the breaking strength according to the used time, the breaking strength, and a first preset formula;

[0149] Obtain the remaining life of the clean filter material according to the used time, the clean filter material resistance, and a second preset formula;

[0150] Obtain the remaining life of the air permeability according to the used time, the air permeability, and a third preset formula;

[0151] Obtain the remaining life of the dust removal filter bag according to the remaining life of the breaking strength, the remaining life of the clean filter material, the remaining life of the air permeability, and a fourth preset formula.

[0152] Optionally, in this embodiment, the above communication bus may be a PCI (Peripheral Component Interconnect) bus, an EISA (Extended Industry Standard Architecture) bus, etc. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For the sake of easy representation, Figure 3It is represented only by a thick line, but it does not mean that there is only one bus or one type of bus.

[0153] The communication interface is used for communication between the above-mentioned electronic device and other devices.

[0154] The memory may include RAM, or may also include non-volatile memory, for example, at least one disk memory. Optionally, the memory may also be at least one storage device located far from the aforementioned processor.

[0155] As an example, as Figure 3 shown, the above-mentioned memory 303 may but is not limited to include the acquisition module 201, the first obtaining module 202, the second obtaining module 203, the third obtaining module 204, and the fourth obtaining module 205 in the above-mentioned remaining life determination device for dust removal filter bags. In addition, it may also include but is not limited to other module units in the above-mentioned remaining life determination device for dust removal filter bags, which will not be elaborated in this example.

[0156] The above-mentioned processor may be a general-purpose processor, which may include but is not limited to: CPU (Central Processing Unit, central processor), NP (Network Processor, network processor), etc.; it may also be a DSP (Digital Signal Processing, digital signal processor), ASIC (Application Specific Integrated Circuit, application-specific integrated circuit), FPGA (Field-Programmable Gate Array, field programmable gate array) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0157] Optionally, the specific examples in this embodiment may refer to the examples described in the above-mentioned embodiment, and will not be elaborated here.

[0158] Those of ordinary skill in the art can understand that Figure 3 the structure shown is only schematic, and the device for implementing the above-mentioned remaining life determination method for dust removal filter bags may be a terminal device, and the terminal device may be a smart phone (such as an Android phone, an iOS phone, etc.), a tablet computer, a palm computer, and a mobile Internet device (Mobile Internet Devices, MID), a PAD and other terminal devices. Figure 3 It does not limit the structure of the above-mentioned electronic device. For example, the terminal device may also include more or fewer components (such as a network interface, a display device, etc.) than those shown in Figure 3 or have a structure different from that shown in Figure 3The different configurations shown.

[0159] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing the relevant hardware of the terminal device through a program, and the program can be stored in a computer-readable storage medium. The storage medium may include: a flash drive, ROM, RAM, a magnetic disk, or an optical disc, etc.

[0160] According to another aspect of the embodiments of the present application, a storage medium is further provided. Optionally, in this embodiment, the above storage medium can be used to store the program code for executing the method for determining the remaining life of the dust removal bag.

[0161] Optionally, in this embodiment, the above storage medium can be located on at least one of the multiple network devices in the network shown in the above embodiments.

[0162] Optionally, in this embodiment, the storage medium is set to store the program code for executing the following steps:

[0163] Obtain the used time, breaking strength, clean filter media resistance, and air permeability of the dust removal bag;

[0164] Obtain the remaining life of the breaking strength according to the used time, breaking strength, and a first preset formula;

[0165] Obtain the remaining life of the clean filter media according to the used time, clean filter media resistance, and a second preset formula;

[0166] Obtain the remaining life of the air permeability according to the used time, air permeability, and a third preset formula;

[0167] Obtain the remaining life of the dust removal bag according to the remaining life of the breaking strength, the remaining life of the clean filter media, the remaining life of the air permeability, and a fourth preset formula.

[0168] Optionally, the specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be elaborated herein.

[0169] Optionally, in this embodiment, the above storage medium may include but is not limited to: various media such as a USB flash drive, ROM, RAM, a mobile hard disk, a magnetic disk, or an optical disc that can store program code.

[0170] In the description of this specification, the descriptions referring to terms such as "this embodiment", "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0171] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A method for determining the remaining life of a dust removal cloth bag, characterized in that, the method includes: Obtaining the used time, breaking strength, clean filter media resistance, and air permeability of the dust removal cloth bag; Obtaining the remaining life of the breaking strength according to the used time, the breaking strength, and a first preset formula; Obtaining the remaining life of the clean filter media according to the used time, the clean filter media resistance, and a second preset formula; Obtaining the remaining life of the air permeability according to the used time, the air permeability, and a third preset formula; Obtaining the remaining life of the dust removal cloth bag according to the remaining life of the breaking strength, the remaining life of the clean filter media, the remaining life of the air permeability, and a fourth preset formula; Obtaining the clean filter media resistance of the dust removal cloth bag includes: When the air flow velocity passing through the clean filter media sample is a preset velocity, obtaining a clean filter media resistance data set within a preset time period, wherein the clean filter media sample is used to determine the clean filter media resistance; Obtaining the average absolute gradient value according to the clean filter media resistance data set; Judging whether the average absolute gradient value is less than a preset threshold value. If it is less than, obtaining the clean filter media resistance according to the clean filter media resistance data set; Before obtaining the clean filter media resistance data set within the preset time period, the method further includes: Obtaining a weight data group of the filter media sample processed by a preset method, wherein the weight data group contains a preset number of weight data; Obtaining the average value of the weight data according to the weight data group; Obtaining the average absolute error according to each weight data and the average value; Judging whether the average absolute error is less than a second preset threshold value. If it is less than, the filter media sample is the clean filter media sample, otherwise, starting from the weight data group of the filter media sample processed by the preset method, performing subsequent steps; The obtaining the remaining life of the clean filter media according to the used time, the clean filter media resistance, and the second preset formula includes: Obtaining the initial value of the clean filter media resistance and the critical value of the clean filter media resistance corresponding to the clean filter media resistance; Obtaining the remaining life of the clean filter media according to the used time, the clean filter media resistance, the initial value of the clean filter media resistance, the critical value of the clean filter media resistance, and the second preset formula; Obtaining the air permeability of the dust removal cloth bag includes: Obtaining a preset pressure drop; Based on the preset pressure drop, obtaining the air permeability; The obtaining the remaining life of the air permeability according to the used time, the air permeability, and the third preset formula includes: Obtaining the initial value of the air permeability and the critical value of the air permeability corresponding to the air permeability; Obtaining the remaining life of the air permeability according to the used time, the air permeability, the initial value of the air permeability, the critical value of the air permeability, and the third preset formula; The breaking strength includes the warp breaking strength and the weft breaking strength of the dust removal cloth bag. The obtaining the remaining life of the breaking strength according to the used time, the breaking strength, and the first preset formula includes: Determine whether the warp breaking strength is less than the weft breaking strength. If it is less, use the warp breaking strength as the target breaking strength; otherwise, use the weft breaking strength as the target breaking strength; Obtain the initial breaking strength value and the breaking strength critical value corresponding to the target breaking strength; Obtain the remaining life of the breaking strength according to the used time, the target breaking strength, the initial breaking strength value, the breaking strength critical value, and the first preset formula.

2. A device for determining the remaining life of a dust removal cloth bag, characterized in that, applied to the method for determining the remaining life of a dust removal cloth bag according to claim 1, the device includes: an acquisition module, configured to acquire the used time, breaking strength, clean filter medium resistance, and air permeability of the dust removal cloth bag; a first obtaining module, configured to obtain the remaining life of the breaking strength according to the used time, the breaking strength, and the first preset formula; a second obtaining module, configured to obtain the remaining life of the clean filter medium according to the used time, the clean filter medium resistance, and the second preset formula; a third obtaining module, configured to obtain the remaining life of the air permeability according to the used time, the air permeability, and the third preset formula; a fourth obtaining module, configured to obtain the remaining life of the dust removal cloth bag according to the remaining life of the breaking strength, the remaining life of the clean filter medium, the remaining life of the air permeability, and the fourth preset formula.

3. An electronic device, comprising a processor, a communication interface, a memory, and a communication bus, wherein, the processor, the communication interface, and the memory complete communication with each other through the communication bus, characterized in that, the memory is used to store a computer program; the processor is configured to execute the method described in claim 1 by running the computer program stored on the memory.

4. A computer-readable storage medium, characterized in that, the storage medium stores a computer program, wherein the computer program, when executed by a processor, implements the method described in claim 1.

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