CN114534383A - Pulse blowing control method - Google Patents
Pulse blowing control method Download PDFInfo
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- CN114534383A CN114534383A CN202210305404.6A CN202210305404A CN114534383A CN 114534383 A CN114534383 A CN 114534383A CN 202210305404 A CN202210305404 A CN 202210305404A CN 114534383 A CN114534383 A CN 114534383A
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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
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0086—Filter condition indicators
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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
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0095—Means acting upon failure of the filtering system, e.g. in case of damage of the filter elements; Failsafes
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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
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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
- B01D46/04—Cleaning filters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to a pulse blowing control method, which comprises the steps of periodically detecting first differential pressure data, wherein the first differential pressure data is the differential pressure data between an air inlet and an air outlet of a dust remover; taking the pressure difference data between openings at two ends of the filtering piece as second pressure difference data, and detecting the second pressure difference data corresponding to each filtering piece when the first pressure difference data is abnormal so as to judge whether the filtering piece is abnormal; and if the filter element is abnormal, performing pulse blowing cleaning or replacement on the abnormal filter element. It carries out pulse jetting clearance respectively to the filter piece of jam, and no longer adopts the clearance mode of unified jetting purification, can improve the jetting structure and carry out the efficiency that the jetting purified to filter piece, practices thrift the energy of air supply to alleviate the interference to the flue gas flow. In addition, to the second differential pressure data analysis that filters the piece correspondence, can discern damaged and filter the piece to be convenient for the staff finds the position that damaged was filtered the piece, and change.
Description
Technical Field
The invention relates to the field of dust removing equipment, in particular to a pulse blowing control method.
Background
A pulse blowing cloth bag type/filter cylinder type dust remover (hereinafter referred to as dust remover) is a dry type physical filtering and purifying treatment device which is suitable for trapping fine, dry and non-fibrous dust, a cloth bag/filter cylinder (hereinafter referred to as filter element) is made of woven filter cloth or non-woven felt, and the dust-containing smoke is physically filtered by using fiber fabrics. After the dust-containing flue gas enters the dust remover, the dust with large particles and large specific gravity firstly settles and falls into the ash bucket due to the self gravity, and then when the flue gas flows, the fine dust in the flue gas is filtered by the cloth bag or the filter cylinder, so that the flue gas is purified.
Generally be provided with a plurality of filtration storehouses in the dust remover, every storehouse evenly distributed has a plurality of to filter again, carries out filterable in-process to the dusty flue gas, and filter the piece surface and can collect a large amount of dust that do not subside down, leads to filtering piece filtration resistance increase, consequently the interval certain time just need carry out the pulse jetting to filtering the piece to will filter the attached dust of piece surface and shake off. However, the working process of the dust collector has the following problems:
1. the pulse blowing device of the dust remover is generally provided with a fixed blowing pipe (or called blowing mechanism) at the opening at the top end of each filter element, and because the dust collecting conditions of each bin, each area of each bin and even each filter element are different, the efficiency of uniformly blowing and purifying the filter elements by using the blowing pipe is low, the energy of an air source is wasted, and the fluency of smoke flowing can also be influenced;
2. a plurality of filtering pieces are arranged in each bin, and once a certain filtering piece is damaged and fails, the position of the damaged filtering piece is difficult to determine in time for replacement.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, it is an object of the present invention to provide a method for controlling pulse blowing, which solves one or more of the problems of the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a pulse blowing control method comprises
Periodically detecting first pressure difference data, wherein the first pressure difference data are pressure difference data between an air inlet and an air outlet of a dust remover;
taking the pressure difference data between openings at two ends of the filtering pieces as second pressure difference data, and detecting the second pressure difference data corresponding to each filtering piece when the first pressure difference data is abnormal so as to judge whether the filtering pieces are abnormal;
and if the filter element is abnormal, performing pulse blowing cleaning or replacement on the abnormal filter element.
Further, a first differential pressure range is preset, and if the first differential pressure data is out of the first differential pressure range, the first differential pressure data is abnormal.
Further, a second differential pressure range is preset, and if the second differential pressure data is out of the second differential pressure range, the filter element is abnormal.
Further, when the second differential pressure data is larger than the value of the second differential pressure range, pulse blowing cleaning is carried out on the corresponding filter element;
and when the second differential pressure data is smaller than the value of the second differential pressure range, reminding a worker to replace the corresponding filter element.
Further, when the second differential pressure data is smaller than the value of the second differential pressure range, the position of the corresponding filter element is recorded, so that the filter element can be conveniently replaced by a worker.
Furthermore, when a plurality of the filter pieces need to be subjected to pulse blowing cleaning, the filter pieces are sequentially subjected to blowing cleaning.
Further, a blowing mechanism is movably arranged in the dust remover, and when pulse blowing treatment is required to be carried out on the filter elements, the blowing mechanism is moved to the filter elements; and after the pulse injection treatment is finished, the injection mechanism is moved away to ensure that the openings at the two ends of the filter element are smooth.
Further, the operation of moving the blowing mechanism is realized by a driving mechanism, and the driving mechanism is arranged in the dust remover.
Further, detect the process of second differential pressure data is realized through first differential pressure gauge, first differential pressure gauge is connected with first measuring head and second measuring head, first measuring head with the second measuring head is located respectively filter the both ends of piece, the second measuring head sets up on the jetting mechanism, actuating mechanism moves, can drive jetting mechanism with the second measuring head passes through each filter the top opening of piece.
Further, the interval for detecting the first pressure difference data is 1min-20 min.
Compared with the prior art, the invention has the following beneficial technical effects:
(one) the periodic detection first pressure difference data, when first pressure difference data is unusual, detect each second pressure difference data that filter the piece and correspond again, through to second pressure difference data analysis, can judge whether each filters piece unusual (jam or damaged), carry out the pulse to the filter piece that blocks up afterwards and spout the clearance, and no longer adopt the clearance mode that unified jetting purified, can improve the efficiency that the jetting structure was blown and is purified to filtering piece, the energy of saving air supply, and alleviate the interference to the flue gas flow. In addition, to the second differential pressure data analysis that filters the piece correspondence, can discern damaged and filter the piece to be convenient for the staff finds the position that damaged was filtered the piece, and change.
And (II) pulse blowing cleaning is carried out on the blocked filter pieces one by one, so that the interference of the airflow of the blowing mechanism on the flow of the flue gas can be reduced, and the flow stability of the flue gas is improved.
And (III) after the pulse injection treatment is finished, the injection mechanism is moved away, so that the openings at the two ends of the filter piece are smooth, and the interference of the injection mechanism to the flow of the flue gas is reduced.
(IV) the air pressure before the dust-containing flue gas passes through each filter element is the same, and because the degree of blocking and the surface damage degree of each filter element are different, the air pressure when the dust-containing flue gas flows out from each filter element is different. The first measuring head is used for measuring the air pressure of the dust-containing flue gas before the dust-containing flue gas passes through the filter element, and only one measuring head can be arranged; the second measuring head is used for measuring the atmospheric pressure that the flue gas flows from filtering the piece, because the top opening that can pass through a plurality of filtration pieces in the injection mechanism removes the in-process with the second measuring head, consequently the second measuring head need not set up with filtering a piece one-to-one, can reduce the use amount of second measuring head to reduce the configuration cost of pulse injection device.
Drawings
FIG. 1 is a schematic structural view of a pulse blowing device and a dust collector in an embodiment of the present invention;
FIG. 2 shows a schematic view of the connection of a dust catcher to a second differential pressure gauge in an embodiment of the present invention;
fig. 3 shows a flow chart of a pulse blowing control method in an embodiment of the invention;
FIG. 4 shows a schematic structural diagram of a card in an embodiment of the invention;
FIG. 5 is a schematic diagram illustrating the connection of a second measuring head to a gas storage bag in an embodiment of the present invention.
In the drawings, the reference numbers:
1. an ash hopper; 11. a first case; 111. a pipeline; 112. a pattern plate; 113. a filter member; 12. a second case; 2. a first differential pressure gauge; 21. a first measuring head; 22. a second measuring head; 3. a gas storage bag; 31. a pulse blowing valve; 4. a linear motor; 41. a drag chain; 5. a second differential pressure gauge; 6. a controller; 61. a CRT industrial personal computer; 62. an alarm lamp.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, a pulse blowing control method according to the present invention is described in further detail below with reference to the accompanying drawings and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
Examples
Referring to fig. 1 and 2, a schematic structural diagram of a dust collector is shown, which includes an ash bucket 1, a first box 11 and a second box 12 that are sequentially arranged from bottom to top, the first box 11 and the second box 12 are sequentially communicated, wherein a side surface of the first box 11 is provided with an air inlet and an air outlet, a bottom wall of the first box 11 is communicated with a pipeline 111, the pipeline 111 is used for communicating the air inlet with an inner wall of the ash bucket 1, and the air outlet is communicated with the second box 12. A plurality of plate bodies are welded in the first box body 11, the first box body 11 is divided into twelve chambers through the plate bodies, and the twelve chambers are symmetrically arranged on two sides of the first box body 11. The top end of each bin is provided with a flower plate 112, twelve groups of through holes are uniformly distributed on the flower plate 112, and the twelve groups of through holes are distributed in a 3 x 4 layout. The number of each group of through holes is sixteen, and the through holes of the same group are arranged in a 4 x 4 layout, and each through hole is provided with a filtering piece 113, wherein the filtering piece 113 in the embodiment is a cloth bag. The number of the ash buckets 1 is also twelve, each ash bucket 1 corresponds to one bin, the ash buckets 1 are arranged under the corresponding bin and are communicated with the corresponding bin, and each ash bucket 1 is also communicated with the air inlet through a pipeline 111.
Referring to fig. 3, the present application provides a pulse blowing control method, which includes:
s1, periodically detecting first pressure difference data, wherein the first pressure difference data are pressure difference data between an air inlet and an air outlet of a dust remover;
s2, taking the pressure difference data between the openings at the two ends of the filtering pieces 113 as second pressure difference data, and detecting the second pressure difference data corresponding to each filtering piece 113 when the first pressure difference data is abnormal so as to judge whether the filtering piece 113 is abnormal;
and S3, if the filtering piece 113 is abnormal, performing pulse blowing cleaning or replacement on the abnormal filtering piece 113.
In this embodiment, the operating state of the dust collector can be analyzed by periodically detecting the first differential pressure data, and then the respective filter members 113 are detected based on the operating state of the dust collector. The state of the filter members 113 can be analyzed by detecting the second differential pressure data corresponding to each filter member 113. As the amount of dust adhering to the surface of the filter member 113 increases, the filter member 113 is clogged, and the pressure difference between the flue gas flow before and after passing through the filter member 113 increases, and if the filter member 113 is damaged, the pressure difference between the flue gas flow before and after passing through the filter member 113 decreases. By monitoring the differential pressure data across the filter member 113 using the first differential pressure gauge 2, it is possible to determine whether the filter member 113 is clogged or not and whether the filter member 113 is broken or not. If filter 113 blocks up, it can to the corresponding filter 113 spray the clearance, if filter 113 is damaged, then fix a position corresponding filter 113, can make things convenient for the staff to discern damaged filter 113, and change. It should be understood that, in addition to periodically detecting the first differential pressure data, the change of the first differential pressure data can also be continuously monitored, so that the working state of the dust remover can be known in time.
Furthermore, a first differential pressure range and a second differential pressure range are preset, in this embodiment, when the dust remover works normally to filter the dust-laden flue gas, the first differential pressure data and the second differential pressure data are recorded, and the first differential pressure range and the second differential pressure range are set according to the distribution range of the first differential pressure data and the second differential pressure data. The "first differential pressure data abnormality" referred to in this embodiment is represented by the first differential pressure data being outside the first differential pressure range. If the second differential pressure data is outside the second differential pressure range, it is assumed that the second differential pressure data is abnormal, which indicates that the corresponding filter element 113 is abnormal (has a problem of clogging or breakage).
Specifically, when the second differential pressure data is greater than the value of the second differential pressure range, the corresponding filter element 113 is subjected to pulse blowing cleaning; and when the second differential pressure data is smaller than the value of the second differential pressure range, reminding the operator to replace the corresponding filter element 113. The blocked filter element 113 is cleaned by blowing, so that the blowing and purifying efficiency can be improved, and the energy consumption of an air source is reduced; in time change damaged filter piece 113, then can guarantee to filter piece 113 and can normally accomplish filtering work, avoid the direct gas outlet from the dust remover of dusty flue gas to flow.
Specifically, when the second differential pressure data is smaller than the value of the second differential pressure range, it indicates that the filter element 113 is damaged, and records the position of the corresponding filter element 113, so as to facilitate replacement by a worker. The position of the damaged filter member 113 is recorded, so that when the worker replaces the damaged filter member 113, the worker can easily recognize and replace the damaged filter member 113.
Further, when the plurality of filter members 113 need to be subjected to the pulse blowing cleaning, the respective filter members 113 are sequentially subjected to the blowing cleaning. The multiple filtering pieces 113 are sequentially subjected to blowing cleaning, so that the interference of pulse blowing treatment on the flowing of the dust-containing flue gas can be reduced, the smoothness and the stationarity of the flowing of the dust-containing flue gas in the dust remover are improved, and the accuracy of the first pressure difference data and the second pressure difference data is improved.
The blowing mechanism is movably arranged in the dust remover, and when pulse blowing treatment is required to be carried out on the filter element 113, the blowing mechanism is moved to the position of the filter element 113; after the pulse blowing process is completed, the blowing mechanism is removed to ensure that the openings at the two ends of the filter member 113 are unobstructed.
Referring to fig. 1 to 5, the scheme in the present embodiment can be implemented by the following means:
a pulse blowing device comprises a first differential pressure meter 2 used for detecting second differential pressure data and a second differential pressure meter 5 used for detecting the first differential pressure data, wherein the first differential pressure meter 2 and the second differential pressure meter 5 are connected with a controller 6. In each cabin, a driving mechanism is installed on the side wall of the second box body 12, the driving mechanism is a linear motor 4, the linear motor 4 is connected with a power transmission line, and a drag chain 41 used for containing the power transmission line is further installed in the second box body 12. The stator of the linear motor 4 is installed on the side wall of the second box 12, the rotor of the linear motor 4 is installed with the gas storage bag 3, and the gas storage bag 3 is externally connected with a gas source (not shown in the figure). The gas storage bag 3 is also communicated with a plurality of pulse blowing valves 31, the driving mechanism drives the gas storage bag 3 to slide, and the positions of the pulse blowing valves 31 can be adjusted, so that the pulse blowing valves 31 are aligned with the filter pieces 113 to be cleaned. In this embodiment, the stator of the linear motor 4 is directly mounted on the side wall of the second casing 12, but it is also possible to provide a bracket on the side wall of the second casing 12 and mount the stator of the linear motor 4 on the bracket.
Specifically, the first differential pressure gauge 2 is connected to a first measuring head 21 and a second measuring head 22, and the first measuring head 21 and the second measuring head 22 are respectively disposed at openings at two ends of the filter member 113, so as to monitor differential pressure data before and after the dusty flue gas flow passes through the filter member 113. In this embodiment, only one first measuring head 21 is provided, and the first measuring head 21 is installed in the first box 11 and is lower than the bottom end of the filter 113; the second measuring head 22 is provided with a plurality of second measuring heads 22, the second measuring heads 22 are all provided with the side surfaces of the air storage bags 3, when the second measuring heads 22 are aligned with the top openings of the filter members 113, the first differential pressure gauge 2 measures the air pressure data of the top ends and the bottom ends of the filter members 113 through the first measuring head 21 and the second measuring head 22, and the pressure difference change of the dust-containing smoke air flow before and after passing through the filter members 113 can be measured. When the gas reservoir 3 is moved, the second measuring head 22 passes through the plurality of filters 113, so that the pressure difference across the respective filter 113 is detected. The air pressure before the dust-containing flue gas passes through each filter 113 is the same, and because the blockage degree and the surface damage degree of each filter 113 are different, the air pressure when the dust-containing flue gas flows out from each filter 113 is different, and the pressure difference before and after the dust-containing flue gas passes through different filters 113 can be measured by matching the first measuring head 21 with the second measuring head 22, so as to analyze whether the filter 113 is damaged or blocked.
Specifically, twelve pulse injection valves 31 are installed on the side face of the air storage bag 3, the twelve pulse injection valves 31 are arranged along the Y direction, twelve corresponding second measuring heads 22 are arranged, and the twelve second measuring heads 22 are connected with the first differential pressure gauge 2. In this embodiment, four sets of through holes are distributed along the X direction and three sets of through holes are distributed along the Y direction in each chamber, and the positions of the twelve measuring heads are respectively aligned with the twelve filtering members 113 arranged along the Y direction. When the driving mechanism drives the gas storage bag 3 to slide along the X direction, the second measuring head 22 passes through the plurality of filtering pieces 113 along the X direction, and can collect the air pressure data at the top opening of each filtering piece 113, that is, each second measuring head 22 can collect the air pressure data at the top opening of the plurality of filtering pieces 113 arranged along the X direction, and the air pressure data collected by the plurality of second measuring heads 22 is compared with the air pressure data collected by the first measuring head 21, so as to obtain the pressure difference data of the dust-containing flue gas before and after passing through each filtering piece 113. In this embodiment, the X direction and the Y direction are perpendicular to each other and are all located on the same horizontal plane, and the specific directions of the X direction and the Y direction are selected according to the arrangement mode of the through holes.
Two measuring heads of the second differential pressure gauge 5 are respectively arranged at the air inlet and the air outlet so as to be used for monitoring the pressure difference of the dust-containing flue gas before and after passing through the dust remover, and the second differential pressure gauge 5 is electrically connected with the controller 6. The first differential pressure range and the second differential pressure range are both preset in the controller 6, so that the controller 6 can analyze whether the first differential pressure data and the second differential pressure data exceed the ranges. When the dust remover works, only the second differential pressure gauge 5 works, the second differential pressure gauge 5 detects first differential pressure data every 1min-20min, when the controller 6 judges that the first differential pressure data is abnormal, the controller 6 drives the mechanism to work with the first differential pressure gauge 2, the differential pressure data at two ends of each filter element 113 are detected, if the filter elements 113 are detected to be blocked, the pulse injection valve 31 is started, and the blocked filter elements 113 are injected; if a breakage of the filter member 113 is detected, the position of the filter member 113 is recorded to facilitate the replacement of the broken filter member 113 by the worker. In addition, the blockage degree of the filter element 113 can be judged according to the first pressure difference data, and when the pulse blowing valve 31 is controlled by the controller 6 to perform pulse blowing treatment on the filter element 113, the opening size of the pulse blowing valve 31 can be adjusted according to the blockage degree of the filter element 113, so that the blowing intensity and the blowing duration of the pulse blowing valve 31 are changed, and the working efficiency of the air source is improved.
After the completion dredges the detection of filtering piece 113, or accomplish the discernment work to damaged filter piece 113, actuating mechanism drives the gas storage package 3 and slides, until removing gas storage package 3 to the lateral wall counterbalance with second box 12 for each filters piece 113 is avoided to gas storage package 3, in order to avoid influencing the smooth and easy nature of flue gas when filtering the flow of 113 top openings of piece. In this embodiment, controller 6 still is connected with CRT industrial computer 61 in addition, and when controller 6 discerned damaged filter piece 113, CRT industrial computer 61's screen display damaged filter piece 113's position to find corresponding filter piece 113 fast and change when being convenient for the staff maintenance, improved staff's work efficiency. It should be noted that the driving mechanism can also be selected from the motor and the ball screw assembly or other assemblies as long as the air storage bag 3 can be driven to move back and forth.
The controller 6 is also electrically connected with an alarm assembly, and when the first pressure difference data is too large or too small, the controller 6 controls the alarm assembly to operate to remind workers of paying attention to the working state of the dust remover. In this embodiment, the alarm component is an alarm lamp 62, and when the alarm lamp 62 works, the alarm lamp sends out an audible and visual signal to remind a worker.
The working principle is as follows:
regularly detect first pressure difference data, when first pressure difference data is unusual, detect the second pressure difference data that each filtration piece 113 corresponds again, through to second pressure difference data analysis, can judge whether each filtration piece 113 is unusual (jam or damaged), carry out the pulse to the filtration piece 113 that blocks up afterwards and spout the clearance, and no longer adopt the clearance mode that unified jetting purified, can improve the efficiency that the jetting structure was blown and is purified to filtration piece 113, the energy of saving air supply, and alleviate the interference to the flue gas flow. In addition, the damaged filter member 113 can be identified by analyzing the second differential pressure data corresponding to the filter member 113, so that the worker can conveniently find the position of the damaged filter member 113 and replace the damaged filter member.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (10)
1. A pulse blowing control method is characterized in that: comprises that
Periodically detecting first pressure difference data, wherein the first pressure difference data are pressure difference data between an air inlet and an air outlet of a dust remover;
taking the pressure difference data between openings at two ends of the filtering pieces as second pressure difference data, and detecting the second pressure difference data corresponding to each filtering piece when the first pressure difference data is abnormal so as to judge whether the filtering pieces are abnormal;
and if the filter element is abnormal, performing pulse blowing cleaning or replacement on the abnormal filter element.
2. The pulse blowing control method according to claim 1, wherein: presetting a first differential pressure range, and if the first differential pressure data is out of the first differential pressure range, determining that the first differential pressure data is abnormal.
3. The pulse blowing control method according to claim 1, wherein: presetting a second differential pressure range, and if the second differential pressure data is out of the second differential pressure range, judging that the filter element is abnormal.
4. A pulse blowing control method according to claim 3, characterized in that: when the second pressure difference data is larger than the value of the second pressure difference range, carrying out pulse blowing cleaning on the corresponding filter element;
and when the second differential pressure data is smaller than the value of the second differential pressure range, reminding a worker to replace the corresponding filter element.
5. The pulse blowing control method according to claim 4, wherein: and when the second differential pressure data is smaller than the value of the second differential pressure range, recording the position of the corresponding filter element so as to facilitate the replacement of the filter element by workers.
6. The pulse blowing control method according to claim 4, wherein: when a plurality of the filter pieces need to be subjected to pulse blowing cleaning, the filter pieces are sequentially subjected to blowing cleaning.
7. The pulse blowing control method according to claim 4, wherein: the injection mechanism is movably arranged in the dust remover, and when pulse injection treatment is required to be carried out on the filter elements, the injection mechanism is moved to the filter elements; and after the pulse injection treatment is finished, the injection mechanism is moved away to ensure that the openings at the two ends of the filter element are smooth.
8. The pulse blowing control method according to claim 7, wherein: the operation of moving the blowing mechanism is realized by a driving mechanism, and the driving mechanism is arranged in the dust remover.
9. The pulse blowing control method according to claim 8, wherein: detect the process of second differential pressure data is realized through first differential pressure gauge, first differential pressure gauge is connected with first measuring head and second measuring head, first measuring head with the second measuring head is located respectively filter the both ends of piece, the second measuring head sets up on the jetting mechanism, actuating mechanism moves, can drive jetting mechanism with the second measuring head is through each filter the top opening of piece.
10. The pulse blowing control method according to claim 1, wherein: the interval for detecting the first pressure difference data is 1-20 min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117398773A (en) * | 2023-12-14 | 2024-01-16 | 江苏奥利思特环保科技有限公司 | Industrial waste gas dust removal desulfurization device |
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