CN115624821A - Method and device for determining residual life of dust removal cloth bag, electronic equipment and storage medium - Google Patents

Method and device for determining residual life of dust removal cloth bag, electronic equipment and storage medium Download PDF

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CN115624821A
CN115624821A CN202211266267.6A CN202211266267A CN115624821A CN 115624821 A CN115624821 A CN 115624821A CN 202211266267 A CN202211266267 A CN 202211266267A CN 115624821 A CN115624821 A CN 115624821A
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filter material
clean filter
obtaining
breaking strength
air permeability
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唐郭安
杜振
郭栋
朱文韬
信晓颖
胡凯妮
王明轩
张琳
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Huadian Electric Power Research Institute Co Ltd
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Huadian Electric Power Research Institute Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/0086—Filter condition indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration

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  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The application provides a method and a device for determining the residual life of a dust removal cloth bag, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring the service life, the breaking strength, the clean filter material resistance and the air permeability of the dust removal cloth bag; obtaining the residual service life of the breaking strength according to the used time, the breaking strength and a first preset formula; obtaining the residual service life of the clean filter material according to the used time, the resistance of the clean filter material and a second preset formula; obtaining the residual life of the air permeability according to the used time, the air permeability and a third preset formula; and obtaining the residual life of the dust removal cloth bag according to the residual life of the breaking strength, the residual life of the clean filter material, the residual life of the air permeability and a fourth preset formula. Through the application, the problem that the accurate residual life of the dust removal cloth bag cannot be obtained in the related technology is solved.

Description

Method and device for determining residual life of dust removal cloth bag, electronic equipment and storage medium
Technical Field
The invention relates to the technical field of dust removal filter bag detection, in particular to a method and a device for determining the residual life of a dust removal cloth bag, electronic equipment and a storage medium.
Background
Under the situation that the current thermal power generating unit needs to realize ultralow dust emission, the bag-type dust collector is an important control device for enabling the dust emission concentration of the thermal power generating unit to reach the standard. The resistance characteristic and air permeability of the clean filter material of the dust-removing cloth bag in the cloth bag dust remover are important parameters influencing the residual service life of the dust-removing cloth bag. However, after the bag-type dust collector is put into use, dust particles are continuously accumulated in the filter material of the dust-collecting bag, so that the resistance characteristic of the filter material and the air permeability of the dust-collecting bag are obviously changed, and the residual service life of the dust-collecting bag is further influenced. In addition, the filter material is affected by physical abrasion, chemical erosion and other factors, so that the breaking strength of the dust removal cloth bag is reduced, the dust removal cloth bag is easy to break, and the residual service life of the dust removal cloth bag is also affected. In the using process, the residual service life of the dust removal cloth bag is attenuated continuously, the dust removal performance of the dust removal cloth bag is reduced continuously, and the requirement for reducing dust emission may not be met. 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. However, the prior art cannot obtain accurate residual life of the dust removal cloth bag.
Therefore, it is necessary to develop a method for determining the remaining life of a dust removal cloth bag, which can comprehensively consider the above factors, so as to determine whether the dust removal cloth bag needs to be replaced.
Disclosure of Invention
The application provides a method and a device for determining the residual life of a dust removal cloth bag, electronic equipment and a storage medium, which are used for at least solving the problem that the accurate residual life of the dust removal cloth bag cannot be obtained in the related technology.
According to an aspect of the embodiment of the application, a method for determining the residual life of a dust removal cloth bag is provided, and the method comprises the following steps:
acquiring the service life, the breaking strength, the clean filter material resistance and the air permeability of the dust removal cloth bag;
obtaining the residual service life of the breaking strength according to the used time, the breaking strength and a first preset formula;
obtaining the residual service life of the clean filter material according to the used time, the resistance of the clean filter material and a second preset formula;
obtaining the residual service life of the air permeability according to the used time, the air permeability and a third preset formula;
and obtaining the residual life of the dust removal cloth bag according to the residual life of the breaking strength, the residual life of the clean filter material, the residual life of the air permeability and a fourth preset formula.
According to another aspect of the embodiments of the present application, there is provided a device for determining the remaining life of a dust removal cloth bag, the device including:
the acquisition module is used for acquiring the used time, the breaking strength, the clean filter material resistance and the air permeability of the dust removal cloth bag;
the first obtaining module is used for obtaining the residual service life of the breaking strength according to the used time, the breaking strength and a first preset formula;
the second obtaining module is used for obtaining the residual service life of the clean filter material according to the used time, the resistance of the clean filter material and a second preset formula;
the third obtaining module is used for obtaining the residual service life of the air permeability according to the used time, the air permeability and a third preset formula;
and the fourth obtaining module is used for obtaining the residual life of the dust removal cloth bag according to the residual life of the breaking strength, the residual life of the clean filter material, the residual life of the air permeability and a fourth preset formula.
Optionally, the obtaining module includes:
the device comprises a first obtaining unit, a second obtaining unit and a control unit, wherein the first obtaining unit is used for obtaining a clean filter material resistance data set in a preset time period under the condition that the flow velocity of air flow passing through a clean filter material sample is a preset velocity, and the clean filter material sample is used for determining the clean filter material resistance;
the first obtaining unit is used for obtaining an average gradient absolute value according to the clean filter material resistance data set;
and the first judgment unit is used for judging whether the average gradient absolute value is smaller than a preset threshold value, and if so, acquiring the clean filter material resistance according to the clean filter material resistance data set.
The second acquisition unit is used for acquiring a preset pressure drop;
a second obtaining unit configured to obtain the air permeability based on the preset pressure drop.
Optionally, the first obtaining unit includes:
the obtaining submodule is used for obtaining a weight data set of the filter material sample processed by the preset method, wherein the weight data set comprises a preset number of weight data;
the first obtaining submodule is used for obtaining the average value of the weight data according to the weight data group;
a second obtaining submodule for obtaining an average absolute error from each of the weight data and the average value;
and the judging submodule is used for judging whether the average absolute error is smaller than a second preset threshold value, if so, the filter material sample is the clean filter material sample, otherwise, the subsequent steps are executed from the weight data set of the filter material sample processed by the preset method.
Optionally, the second obtaining module includes:
the third acquisition unit is used for acquiring a clean filter material resistance initial value and a clean filter material resistance critical value corresponding to the clean filter material resistance;
and the third obtaining unit is used for obtaining the residual service life of the clean filter material according to the used time, the resistance of the clean filter material, the initial value of the resistance of the clean filter material, the critical value of the resistance of the clean filter material and the second preset formula.
Optionally, the third obtaining module includes:
the fourth acquisition unit is used for acquiring an air permeability initial value and an air permeability critical value corresponding to the air permeability;
and the fourth obtaining unit is used for obtaining the residual 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.
Optionally, the first obtaining module includes:
a second judging unit, configured to judge whether the warp breaking strength is smaller than the weft breaking strength, if so, take the warp breaking strength as a target breaking strength, otherwise, take the weft breaking strength as a target breaking strength;
a fifth obtaining unit, configured to obtain a breaking strength initial value and a breaking strength critical value corresponding to the target breaking strength;
and a fifth obtaining unit, configured to obtain the residual 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.
According to another aspect of the embodiments of the present application, there is also provided an electronic device, including a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory communicate with each other through the communication bus; wherein the memory is used for storing the computer program; a processor for performing the method steps in any of the above embodiments by running the computer program stored on the memory.
According to a further aspect of the embodiments of the present application, there is also provided a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to perform the method steps of any of the above embodiments when the computer program is executed.
In the embodiment of the application, the used time, the breaking strength, the clean filter material resistance and the air permeability of the dust removal cloth bag are obtained; obtaining the residual service life of the breaking strength according to the used time, the breaking strength and a first preset formula; obtaining the residual service life of the clean filter material according to the used time, the resistance of the clean filter material and a second preset formula; obtaining the residual service life of the air permeability according to the used time, the air permeability and a third preset formula; and obtaining the residual life of the dust removal cloth bag according to the residual life of the breaking strength, the residual life of the clean filter material, the residual life of the air permeability and a fourth preset formula. According to the method and the device, the used time, the breaking strength, the clean filter material resistance and the air permeability of the dust removal cloth bag are obtained firstly, then the breaking strength residual life, the clean filter material resistance residual life and the air permeability residual life are obtained by using corresponding formulas respectively, and finally the final residual life of the dust removal cloth bag is obtained after the three residual lives are comprehensively considered. The obtained residual life of the dust removal cloth bag is obtained after the mechanical property attenuation condition and the physical property change characteristic of the dust removal cloth bag are comprehensively considered, and the method is more reasonable and more accurate. The problem that the accurate residual service life of the dust removal cloth bag cannot be obtained in the related technology is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic flow chart diagram illustrating an alternative method for determining the remaining life of a dust collection bag in accordance with an embodiment of the present application;
FIG. 2 is a block diagram of an alternative dust collection bag remaining life determining device according to an embodiment of the present application;
fig. 3 is a block diagram of an alternative electronic device according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Under the situation that the current thermal power generating unit needs to realize ultralow dust emission, the bag-type dust collector is important control equipment for enabling the dust emission concentration of the thermal power generating unit to reach the standard. In the using process, the residual life of the dust removal cloth bag is attenuated continuously, the dust removal performance of the dust removal cloth bag is reduced continuously, and the requirement for reducing dust emission can not be met, so that the residual life of the dust removal cloth bag needs to be evaluated accurately, and the dust removal cloth bag with insufficient residual life is replaced in time. Based on this, according to an aspect of the embodiments of the present application, there is provided a method for determining the remaining life of a dust removal cloth bag, as shown in fig. 1, the method may include the following steps:
and S101, acquiring the used time, the breaking strength, the clean filter material resistance and the air permeability of the dust removal cloth bag.
Alternatively, the elapsed time is the actual number of hours of operation of the dust cloth bag in the precipitator.
The breaking strength of the dust removal cloth bag comprises warp-wise breaking strength and weft-wise breaking strength, and the warp-wise breaking strength and the weft-wise breaking strength are not determined to be connected and need to be discussed respectively. Respectively obtaining warp and weft samples from the dust removal cloth bag, wherein the samples are filter material blocks of 200mm multiplied by 50mm, fixing one end of each sample by using a clamp, connecting the other end of each sample with a movable force application component, stretching the samples until the samples are completely broken, the force of the force application component at the moment is breaking strength, repeating the steps, and respectively obtaining the breaking strength of the warp and weft, and the unit of the breaking strength is N.
The resistance of the clean filter material is obtained by calculating the air pressure difference of the front air flow and the rear air flow of the clean filter material, wherein the clean filter material is obtained from a dust removal cloth bag, and the unit of the resistance of the clean filter material is Pa.
According to the actual use condition, setting the pressure drop of the airflow passing through the dust removal cloth bag, and calculating the air permeability according to the volume of the airflow penetrating through the dust removal cloth bag in unit time and unit area, wherein the unit of the air permeability is m 3 /(m 2 ×min)。
And S102, obtaining the residual service life of the fracture strength according to the used time, the fracture strength and a first preset formula.
Optionally, different minimum breaking strengths are set according to the use scene and the use requirement of the dust removal cloth bag, then the breaking strength of the dust removal cloth bag after being used for a certain time and the breaking strength when leaving a factory are analyzed, and a first preset formula for representing the relation between the breaking strength variation and the use time can be obtained by combining the used time of the dust removal cloth bag.
And substituting the smaller value of the warp-wise breaking strength and the weft-wise breaking strength and the used time into the obtained first preset formula, and obtaining an estimated breaking strength life value, namely the residual breaking strength life, by calculation.
And step S103, obtaining the residual service life of the clean filter material according to the used time, the clean filter material resistance and a second preset formula.
Optionally, as the service life of the dust removal cloth bag is continuously increased, the filter material in the dust removal cloth bag is affected by physical and chemical erosion, and the service life of the dust removal cloth bag is further affected. The degree of the influence can be determined through the resistance of the clean filter material, and then the residual service life of the dust removal cloth bag is evaluated. In actual use, it is found that the influence of physical and chemical erosion on the dust removal cloth bag is uniform in a certain period of time, that is, the influence is uniformly increased along with the use time, and the relationship can be reflected by a second preset formula.
And calculating to obtain an estimated value of the service life of the clean filter material, namely the residual service life of the clean filter material according to the used time, the resistance of the clean filter material at the moment and a second preset formula.
And step S104, obtaining the residual life of the air permeability according to the used time, the air permeability and a third preset formula.
Optionally, the air permeability can reflect the ability of the air flow to pass through the filter material in the dust removal cloth bag, and an estimated value of the air permeability life, that is, the residual life of the air permeability can be calculated according to the used time of the dust removal cloth bag, the current air permeability and a third preset formula reflecting the relationship between the air permeability and the time.
And S105, obtaining the residual life of the dust removal cloth bag according to the fracture strength residual life, the clean filter material residual life, the air permeability residual life and a fourth preset formula.
Optionally, after obtaining the breaking strength residual life, the clean filter material residual life and the air permeability residual life, the dust removal cloth bag can be used continuously only under the condition that the breaking strength, the clean filter material resistance and the air permeability all meet the use requirements, for example, if the current breaking strength of the dust removal cloth bag is very low, a notch is easily formed in the dust removal cloth bag, the clean filter material resistance can be reduced on the contrary, the air permeability can be increased on the contrary, and obviously, dust can penetrate through the dust removal cloth bag more easily at the moment, and the dust removal cloth bag cannot meet the dust removal requirements. Therefore, according to the barrel effect, the smallest of the three remaining lifetimes is selected as the remaining lifetime of the final dust removal cloth bag, as shown in equation (1), i.e., the fourth predetermined equation:
Figure BDA0003893364210000081
wherein, T F 、
Figure BDA0003893364210000082
T p 、T C The estimated values are fracture strength life, clean filter material life, air permeability life and residual life of the cloth bag, namely the residual life of the dust removal cloth bag.
In the embodiment of the application, the used time, the breaking strength, the clean filter material resistance and the air permeability of the dust removal cloth bag are obtained; obtaining the residual service life of the breaking strength according to the used time, the breaking strength and a first preset formula; obtaining the residual service life of the clean filter material according to the used time, the resistance of the clean filter material and a second preset formula; obtaining the residual service life of the air permeability according to the used time, the air permeability and a third preset formula; and obtaining the residual life of the dust removal cloth bag according to the fracture strength residual life, the clean filter material residual life, the air permeability residual life and a fourth preset formula. According to the method and the device, the used time, the breaking strength, the clean filter material resistance and the air permeability of the dust removal cloth bag are firstly obtained, then the breaking strength residual life, the clean filter material resistance residual life and the air permeability residual life are respectively obtained by using the corresponding formulas, and finally the final dust removal cloth bag residual life is obtained after the three types of residual lives are comprehensively considered, so that the obtained dust removal cloth bag residual life is obtained after the mechanical property attenuation condition and the physical property change characteristic of the cloth bag are comprehensively considered, and the method and the device are more reasonable and more accurate. The problem that the accurate residual life of the dust removal cloth bag cannot be obtained in the related technology is solved.
As an alternative embodiment, obtaining the clean filter material resistance of the dust removal cloth bag comprises:
under the condition that the flow velocity of air flow passing through a clean filter material sample is a preset velocity, acquiring a clean filter material resistance data set in a preset time period, wherein the clean filter material sample is used for determining the clean filter material resistance;
obtaining an average gradient absolute value according to the clean filter material resistance data set;
and judging whether the absolute value of the average gradient is smaller than a preset threshold value, and if so, obtaining the resistance of the clean filter material according to the resistance data set of the clean filter material.
Optionally, the resistance of the clean filter material reflects the energy loss degree of the dust removal cloth bag in the filtering process, and the lower the resistance of the clean filter material is, the smaller the filtering load is, the lower the operation cost is, and the longer the service life of the dust removal cloth bag is.
Stabilizing the flow velocity of the air flow passing through the clean filter material sample at 1.85m 3 And h, measuring the resistance of the clean filter material, and continuously recording for 5 minutes, namely a preset time period to obtain a clean filter material resistance data set. At this time, the preset speed is 1.85m 3 And h, adjusting the preset speed according to the use scene and the use requirement of the dust removal cloth bag.
And calculating the average gradient of the clean filter material resistance in the clean filter material resistance data set.
When the absolute value of the average gradient is less than 0.5, the clean filter material resistance data set is considered to be in accordance with the true value, and then the average value of the clean filter material resistance in the clean filter material resistance data set is calculated to be used as the final clean filter material resistance
Figure BDA0003893364210000091
At this time, the first preset threshold is 0.5, which can be adjusted according to the requirement.
In the embodiment of the application, whether the resistance data set accords with the true value or not is judged by recording the resistance data set of the clean filter material within 5 minutes and according to the average gradient of the resistance data set of the clean filter material, and the average value of the resistance data set of the clean filter material is used as the final resistance of the clean filter material, so that on one hand, the blank of the industry for detecting the resistance of the clean filter material of the dust removal cloth bag is made up, and on the other hand, the data is accurate, the operation is simple and convenient, and a basis is provided for the subsequent calculation of the service life value of the clean filter material.
As an alternative embodiment, before acquiring the clean filter material resistance data set within a preset time period in the case that the flow rate of the air flow passing through the clean filter material sample is a preset speed, the method further includes:
acquiring a weight data set of the filter material sample treated by a preset method, wherein the weight data set comprises a preset number of weight data;
obtaining an average value of the weight data according to the weight data group;
obtaining an average absolute error according to each weight data and the average value;
and judging whether the average absolute error is smaller than a second preset threshold value, if so, determining that the filter material sample is a clean filter material sample, otherwise, executing the subsequent steps from the weight data set of the filter material sample processed by the preset method.
Optionally, a round filter material sample with the diameter of 155mm is cut from the dust removal cloth bag, and the cross section area is 23-25 cm 2 The filter material sample is subjected to dust collection treatment by the dust collection equipment with the oval or round dust collection port and the vacuum degree of 2 kPa. When dust is sucked, the surface of a filter bag sample is covered for reciprocating dust suction within 60 s. Weighing the filter bag by using a percentage after dust collection is finished, repeating the weighing for 3 times to obtain 3 weight data, forming a weight data set by the 3 weight data, and setting the preset number to be 3.
And calculating an average value of the 3 weight data, subtracting the average value from the 3 weight data in sequence, and dividing the average value by the average value to finally obtain 3 absolute errors.
And (3) taking absolute values of the 3 absolute errors, calculating the average value of the 3 absolute errors to obtain an average absolute error, and if the average absolute error is less than 1%, namely a second preset threshold, determining that the current filter material sample is a clean filter material sample. And if the average absolute error is more than 1%, performing dust collection treatment on the filter material sample again, and performing subsequent weighing and calculation.
In the embodiment of the application, the filter material sample is firstly intercepted from the dust removal cloth bag, then the dust absorption treatment is carried out on the filter material sample, whether the filter material sample is clean or not is judged by calculating 3 times of weight data until the clean filter material sample is obtained, and a basis is provided for subsequent measurement and calculation of clean filter material resistance.
As an alternative embodiment, the obtaining of the remaining life of the clean filter material according to the used time, the clean filter material resistance and the second preset formula comprises:
acquiring an initial value of the resistance of the clean filter material and a critical value of the resistance of the clean filter material corresponding to the resistance of the clean filter material;
and obtaining the residual service life of the clean filter material according to the used time, the resistance of the clean filter material, the initial value of the resistance of the clean filter material, the critical value of the resistance of the clean filter material and a second preset formula.
Optionally, the clean filter material resistance corresponding to the newly-shipped dust removal cloth bag is called as the initial clean filter material resistance value
Figure BDA0003893364210000101
The clean filter material resistance of the dust removal cloth bag which can meet the minimum dust removal requirement is called as the clean filter material resistance critical value
Figure BDA0003893364210000102
Critical value of
Figure BDA0003893364210000103
Usually taking a fixed empirical value. ,
the used time t,
Figure BDA0003893364210000104
Resistance of clean filter material
Figure BDA0003893364210000105
Substituting into a second preset formula, namely formula (2), to obtain the residual service life of the clean filter material
Figure BDA0003893364210000106
If it is not
Figure BDA0003893364210000107
Is less than or equal to
Figure BDA0003893364210000108
The residual service life of the clean filter material of the dust removal cloth bag is 0 and the filter material needs to be replaced.
Figure BDA0003893364210000111
In the embodiment of the application, the relation between the resistance variation quantity of the clean filter material and the used time is represented by a second preset formula, and then the resistance variation quantity of the clean filter material is substituted into each data of the current cloth bag, and the residual life of the clean filter material is obtained through calculation.
As an alternative embodiment, obtaining the air permeability of the dust collection cloth bag comprises:
acquiring a preset pressure drop;
based on the preset pressure drop, the air permeability is obtained.
Optionally, the air permeability is also called air permeability, and under the pressure drop of 200Pa, namely the preset pressure drop, the volume of the air flow passing through the filter material of the dust removal cloth bag in unit area in unit time is obtained through measurement and calculation, namely the air permeability P t 。
In the embodiment of the application, the air permeability is used for reflecting the capacity of air flow passing through the dust removal cloth bag, so that the measurement and calculation are convenient, and a basis is provided for the subsequent calculation of the residual life of the air permeability.
As an alternative embodiment, the obtaining of the remaining life of the air permeability according to the elapsed time, the air permeability and the third preset formula comprises:
acquiring an initial value of air permeability and a critical value of the air permeability corresponding to the air permeability;
and obtaining the residual service 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.
Optionally, the air permeability corresponding to the newly-shipped dust removal cloth bag is called as an initial value of air permeability P 0 The lowest air permeability of the dust-removing cloth bag capable of meeting the dust-removing requirement is called as an air permeability critical value P c Critical value P c Usually taking a fixed empirical value.
Will use the time t, P 0 Air permeability P t 、P c Substituting into a third preset formula, namely formula (3), to obtain the residual service life T of the air permeability p . If P is t Is less than or equal to P c The residual air permeability life of the dust removal cloth bag is 0 and the cloth bag needs to be replaced.
Figure BDA0003893364210000112
In the embodiment of the application, the relationship between the air permeability variation and the used time is represented by a third preset formula, and then the relationship is substituted into each data of the current cloth bag, and the air permeability residual life is obtained through calculation.
As an alternative embodiment, the breaking strength includes a warp breaking strength and a weft breaking strength of the dust collection cloth bag, and the obtaining of the remaining life of the breaking strength according to the used time, the breaking strength and a first preset formula includes:
judging whether the warp breaking strength is smaller than the weft breaking strength, if so, taking the warp breaking strength as a target breaking strength, otherwise, taking the weft breaking strength as the target breaking strength;
acquiring a breaking strength initial value and a breaking strength critical value corresponding to the target breaking strength;
and obtaining the residual 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.
Optionally, the target breaking strength, which is the smaller of the warp and weft breaking strengths, is called the current value F t 。
The corresponding breaking strength of the newly-delivered dust removal cloth bag is called as an initial value F of the breaking strength 0 The force of the dust-collecting cloth bag just beginning to break is called a breaking strength critical value F c Critical value F c Usually taking a fixed empirical value.
Will use time t, F t 、F 0 、F c Substituting into a first preset formula, namely formula (4), to obtain the residual service life T of the fracture strength F . Otherwise, if the current value F is t Equal to or less than a critical value F c The fracture strength residual life of the current dust removal cloth bag is 0 and the cloth bag needs to be replaced.
Figure BDA0003893364210000121
In the embodiment of the application, the relation between the breaking strength variation and the used time is represented by a first preset formula, and then the breaking strength variation is substituted into each data of the current cloth bag, and the breaking strength residual life is obtained through calculation.
According to another aspect of the embodiment of the application, a dust removing cloth bag residual life determining device for implementing the dust removing cloth bag residual life determining method is also provided. Fig. 2 is a block diagram of an alternative remaining life determining device for a dust collecting bag according to an embodiment of the present application, and as shown in fig. 2, the device may include:
an obtaining module 201, configured to obtain the used time, breaking strength, resistance of clean filter material, and air permeability of the dust removal cloth bag;
a first obtaining module 202, configured to obtain a residual life of the breaking strength according to the used time, the breaking strength, and a first preset formula;
the second obtaining module 203 is used for obtaining the residual life of the clean filter material according to the used time, the resistance of the clean filter material and a second preset formula;
a third obtaining module 204, configured to obtain the remaining life of the air permeability according to the used time, the air permeability, and a third preset formula;
and a fourth obtaining module 205, configured to obtain the remaining life of the dust removal cloth bag according to the breaking strength remaining life, the clean filter material remaining life, the air permeability remaining life, and a fourth preset formula.
It should be noted that the obtaining module 201 in this embodiment may be configured to execute the step S101, the first obtaining module 202 in this embodiment may be configured to execute the step S102, the first obtaining module 203 in this embodiment may be configured to execute the step S103, the first obtaining module 204 in this embodiment may be configured to execute the step S104, and the first obtaining module 205 in this embodiment may be configured to execute the step S105.
Through the modules, the used time, the breaking strength, the clean filter material resistance and the air permeability of the dust removal cloth bag are firstly obtained, then the breaking strength residual life, the clean filter material resistance residual life and the air permeability residual life are respectively obtained by utilizing corresponding formulas, and finally the final dust removal cloth bag residual life is obtained after comprehensively considering the three types of residual life. The problem that the accurate residual life of the dust removal cloth bag cannot be obtained in the related technology is solved.
As an alternative embodiment, the obtaining module includes:
the device comprises a first obtaining unit, a second obtaining unit and a control unit, wherein the first obtaining unit is used for obtaining a clean filter material resistance data set in a preset time period under the condition that the flow velocity of air flow passing through a clean filter material sample is a preset velocity, and the clean filter material sample is used for determining the clean filter material resistance;
the first obtaining unit is used for obtaining an average gradient absolute value according to the clean filter material resistance data set;
and the first judgment unit is used for judging whether the absolute value of the average gradient is smaller than a preset threshold value or not, and if so, obtaining the clean filter material resistance according to the clean filter material resistance data set.
The second acquisition unit is used for acquiring a preset pressure drop;
a second obtaining unit for obtaining the air permeability based on the preset pressure drop.
As an alternative embodiment, the first obtaining unit includes:
the obtaining submodule is used for obtaining a weight data set of the filter material sample processed by the preset method, wherein the weight data set comprises a preset number of weight data;
a first obtaining submodule for obtaining an average value of the weight data based on the weight data group;
a second obtaining submodule for obtaining an average absolute error according to each weight data and the average value;
and the judging submodule is used for judging whether the average absolute error is smaller than a second preset threshold value, if so, the filter material sample is a clean filter material sample, otherwise, the subsequent steps are executed from the weight data set of the filter material sample processed by the preset method.
As an alternative embodiment, the second obtaining module includes:
the third acquisition unit is used for acquiring a clean filter material resistance initial value and a clean filter material resistance critical value corresponding to the clean filter material resistance;
and the third obtaining unit is used for obtaining the residual service life of the clean filter material according to the used time, the resistance of the clean filter material, the initial value of the resistance of the clean filter material, the critical value of the resistance of the clean filter material and a second preset formula.
As an alternative embodiment, the third obtaining module includes:
the fourth acquisition unit is used for acquiring an air permeability initial value and an air permeability critical value corresponding to the air permeability;
and the fourth obtaining unit is used for obtaining the residual service 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.
As an alternative embodiment, the first obtaining module includes:
the second judgment unit is used for judging whether the warp breaking strength is smaller than the weft breaking strength, if so, the warp breaking strength is used as the target breaking strength, otherwise, the weft breaking strength is used as the target breaking strength;
the fifth acquisition unit is used for acquiring a breaking strength initial value and a breaking strength critical value corresponding to the target breaking strength;
and the fifth obtaining unit is used for obtaining the residual service 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.
It should be noted that the modules described above are the same as examples and application scenarios realized by corresponding steps, but are not limited to what is disclosed in the foregoing embodiments.
According to another aspect of the embodiment of the present application, there is also provided an electronic device for implementing the method for determining the remaining life of a dust removal cloth bag, wherein the electronic device may be a server, a terminal, or a combination thereof.
Fig. 3 is a block diagram of an alternative electronic device according to an embodiment of the present application, as shown in fig. 3, including a processor 301, a communication interface 302, a memory 303 and a communication bus 304, where the processor 301, the communication interface 302 and the memory 303 communicate with each other through the communication bus 304, and where,
a memory 303 for storing a computer program;
the processor 301, when executing the computer program stored in the memory 303, implements the following steps:
acquiring the service life, the breaking strength, the clean filter material resistance and the air permeability of the dust removal cloth bag;
obtaining the residual service life of the breaking strength according to the used time, the breaking strength and a first preset formula;
obtaining the residual service life of the clean filter material according to the used time, the resistance of the clean filter material and a second preset formula;
obtaining the residual life of the air permeability according to the used time, the air permeability and a third preset formula;
and obtaining the residual life of the dust removal cloth bag according to the fracture strength residual life, the clean filter material residual life, the air permeability residual life and a fourth preset formula.
Alternatively, in this embodiment, the communication bus may be a PCI (Peripheral Component Interconnect) bus, an EISA (Extended Industry Standard Architecture) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 3, but this does not mean only one bus or one type of bus.
The communication interface is used for communication between the electronic equipment and other equipment.
The memory may include RAM, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory. Alternatively, the memory may be at least one memory device located remotely from the processor.
As an example, as shown in fig. 3, the memory 303 may include, but is not limited to, an obtaining module 201, a first obtaining module 202, a second obtaining module 203, a third obtaining module 204, and a fourth obtaining module 205 of the dust collecting bag remaining life determining device. In addition, the remaining life determining device may further include, but is not limited to, other module units in the remaining life determining device for the dust removal cloth bag, which is not described in detail in this example.
The processor may be a general-purpose processor, and may include but is not limited to: a CPU (Central Processing Unit), an NP (Network Processor), and the like; but also a DSP (Digital Signal Processing), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment is not described herein again.
It can be understood by those skilled in the art that the structure shown in fig. 3 is only an illustration, and the device implementing the method for determining the remaining life of the dust removal cloth bag may be a terminal device, and the terminal device may be a terminal device such as a smart phone (e.g., an Android Mobile phone, an iOS Mobile phone, etc.), a tablet computer, a palm computer, a Mobile Internet Device (MID), a PAD, and the like. Fig. 3 is a diagram illustrating a structure of the electronic device. For example, the terminal device may also include more or fewer components (e.g., network interfaces, display devices, etc.) than shown in FIG. 3, or have a different configuration than shown in FIG. 3.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by a program instructing hardware associated with the terminal device, where the program may be stored in a computer-readable storage medium, and the storage medium may include: flash disk, ROM, RAM, magnetic or optical disk, and the like.
According to still another aspect of an embodiment of the present application, there is also provided a storage medium. Alternatively, in this embodiment, the storage medium may be used to store program codes for executing the method for determining the remaining life of the dust collection cloth bag.
Optionally, in this embodiment, the storage medium may be located on at least one of a plurality of network devices in a network shown in the above embodiment.
Optionally, in this embodiment, the storage medium is configured to store program code for performing the following steps:
acquiring the service life, the breaking strength, the clean filter material resistance and the air permeability of the dust removal cloth bag;
obtaining the residual service life of the breaking strength according to the used time, the breaking strength and a first preset formula;
obtaining the residual service life of the clean filter material according to the used time, the resistance of the clean filter material and a second preset formula;
obtaining the residual life of the air permeability according to the used time, the air permeability and a third preset formula;
and obtaining the residual life of the dust removal cloth bag according to the residual life of the breaking strength, the residual life of the clean filter material, the residual life of the air permeability and a fourth preset formula.
Optionally, the specific example in this embodiment may refer to the example described in the above embodiment, which is not described again in this embodiment.
Optionally, in this embodiment, the storage medium may include but is not limited to: various media capable of storing program codes, such as a U disk, a ROM, a RAM, a removable hard disk, a magnetic disk, or an optical disk.
In the description herein, reference to the description of the terms "this embodiment," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (10)

1. A method for determining the residual life of a dust removal cloth bag is characterized by comprising the following steps:
acquiring the service life, the breaking strength, the clean filter material resistance and the air permeability of the dust removal cloth bag;
obtaining the residual service life of the breaking strength according to the used time, the breaking strength and a first preset formula;
obtaining the residual service life of the clean filter material according to the used time, the resistance of the clean filter material and a second preset formula;
obtaining the residual service life of the air permeability according to the used time, the air permeability and a third preset formula;
and obtaining the residual life of the dust removal cloth bag according to the residual life of the breaking strength, the residual life of the clean filter material, the residual life of the air permeability and a fourth preset formula.
2. The method of claim 1, wherein obtaining clean filter material resistance of the dust collection cloth bag comprises:
under the condition that the flow velocity of air flow passing through a clean filter material sample is a preset velocity, acquiring a clean filter material resistance data set in a preset time period, wherein the clean filter material sample is used for determining the clean filter material resistance;
obtaining an average gradient absolute value according to the clean filter material resistance data set;
and judging whether the absolute value of the average gradient is smaller than a preset threshold value, and if so, obtaining the resistance of the clean filter material according to the resistance data set of the clean filter material.
3. The method of claim 2, wherein prior to the obtaining the clean filter material resistance dataset over a preset time period, the method further comprises:
acquiring a weight data set of the filter material sample processed by a preset method, wherein the weight data set comprises a preset number of weight data;
obtaining an average value of the weight data according to the weight data group;
obtaining an average absolute error from each of the weight data and the average;
and judging whether the average absolute error is smaller than a second preset threshold, if so, determining the filter material sample as the clean filter material sample, otherwise, executing the subsequent steps from the weight data set of the filter material sample processed by the preset method.
4. The method of claim 3, wherein obtaining the clean filter material residual life according to the elapsed time, the clean filter material resistance, and a second predetermined formula comprises:
acquiring a clean filter material resistance initial value and a clean filter material resistance critical value corresponding to the clean filter material resistance;
and obtaining the residual service life of the clean filter material according to the used time, the resistance of the clean filter material, the initial value of the resistance of the clean filter material, the critical value of the resistance of the clean filter material and the second preset formula.
5. The method of claim 4, wherein obtaining the air permeability of the dust collection bag comprises:
acquiring a preset pressure drop;
and obtaining the air permeability based on the preset pressure drop.
6. The method of claim 5, wherein said deriving an air permeability remaining life from said elapsed time, said air permeability, and a third predetermined formula comprises:
acquiring an air permeability initial value and an air permeability critical value corresponding to the air permeability;
and obtaining the residual 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.
7. The method of claim 6, wherein said burst strength comprises a warp-wise burst strength and a weft-wise burst strength of said dust removal cloth bag, and said deriving a burst strength residual life from said elapsed time, said burst strength, and a first predetermined formula comprises:
judging whether the warp breaking strength is smaller than the weft breaking strength, if so, taking the warp breaking strength as a target breaking strength, otherwise, taking the weft breaking strength as the target breaking strength;
acquiring a breaking strength initial value and a breaking strength critical value corresponding to the target breaking strength;
and obtaining the residual service 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.
8. A device for determining the remaining life of a dust removal cloth bag is characterized by comprising:
the acquisition module is used for acquiring the used time, the breaking strength, the clean filter material resistance and the air permeability of the dust removal cloth bag;
the first obtaining module is used for obtaining the residual service life of the breaking strength according to the used time, the breaking strength and a first preset formula;
the second obtaining module is used for obtaining the residual service life of the clean filter material according to the used time, the resistance of the clean filter material and a second preset formula;
the third obtaining module is used for obtaining the residual life of the air permeability according to the used time, the air permeability and a third preset formula;
and the fourth obtaining module is used for obtaining the residual life of the dust removal cloth bag according to the residual life of the breaking strength, the residual life of the clean filter material, the residual life of the air permeability and a fourth preset formula.
9. An electronic device comprising a processor, a communication interface, a memory and a communication bus, wherein said processor, said communication interface and said memory communicate with each other via said communication bus,
the memory for storing a computer program;
the processor for performing the method steps of any one of claims 1 to 7 by running the computer program stored on the memory.
10. A computer-readable storage medium, in which a computer program is stored, wherein the computer program realizes the method steps of any one of claims 1 to 7 when executed by a processor.
CN202211266267.6A 2022-10-17 2022-10-17 Method and device for determining residual life of dust removal cloth bag, electronic equipment and storage medium Pending CN115624821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211266267.6A CN115624821A (en) 2022-10-17 2022-10-17 Method and device for determining residual life of dust removal cloth bag, electronic equipment and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211266267.6A CN115624821A (en) 2022-10-17 2022-10-17 Method and device for determining residual life of dust removal cloth bag, electronic equipment and storage medium

Publications (1)

Publication Number Publication Date
CN115624821A true CN115624821A (en) 2023-01-20

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Application Number Title Priority Date Filing Date
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Country Link
CN (1) CN115624821A (en)

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