CN114534383B - Pulse blowing control method - Google Patents
Pulse blowing control method Download PDFInfo
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- CN114534383B CN114534383B CN202210305404.6A CN202210305404A CN114534383B CN 114534383 B CN114534383 B CN 114534383B CN 202210305404 A CN202210305404 A CN 202210305404A CN 114534383 B CN114534383 B CN 114534383B
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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 & Material Sciences (AREA)
- 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 pressure difference data, wherein the first pressure difference data is pressure difference data between an air inlet and an air outlet of a dust remover; taking the pressure difference data between the openings at the two ends of the filter element as second pressure difference data, and detecting the second pressure difference data corresponding to each filter element when the first pressure difference data is abnormal so as to judge whether the filter element is abnormal or not; if the filter element is abnormal, pulse blowing cleaning or replacement is carried out on the abnormal filter element. The pulse blowing cleaning is respectively carried out on the blocked filter pieces, a cleaning mode of uniform blowing cleaning is not adopted any more, the blowing cleaning efficiency of the blowing structure on the filter pieces can be improved, the energy of an air source is saved, and the interference on the flow of smoke is reduced. In addition, the second differential pressure data corresponding to the filter element is analyzed, and the damaged filter element can be identified, so that a worker can find the position of the damaged filter element conveniently and replace the damaged filter element.
Description
Technical Field
The invention relates to the field of dust removing equipment, in particular to a pulse blowing control method.
Background
The pulse blowing bag-type dust collector is one dry physical filtering and purifying device suitable for collecting fine, dry and non-fibrous dust, and the bag-type dust collector is made of woven filter cloth or non-woven felt and has fiber fabric to physically filter dust-containing fume. When the dust-containing flue gas enters the dust remover, the dust with large particles and large specific gravity firstly subsides and falls into the ash bucket due to the gravity of the dust-containing flue gas, and then the fine dust in the flue gas is filtered by a cloth bag or a filter cylinder when the flue gas flows, so that the flue gas is purified.
The dust remover is generally provided with a plurality of filtering chambers, each chamber is uniformly provided with a plurality of filtering pieces, a large amount of dust which does not settle down can be collected on the surfaces of the filtering pieces in the process of filtering dust-containing flue gas, so that the filtering resistance of the filtering pieces is increased, and pulse blowing is required to be carried out on the filtering pieces at intervals, so that the dust attached to the surfaces of the filtering pieces is shaken off. However, the following problems exist in the working process of the dust remover:
1. the pulse blowing device of the dust remover is generally provided with a fixed blowing pipe (or called a blowing mechanism) at the top end opening of each filter element, and the blowing pipes are used for uniformly blowing and purifying the filter elements, so that the efficiency of blowing and purifying the filter elements is low, the energy of an air source is wasted, and the smoothness of the flow of smoke gas is also influenced because the dust collection conditions of each bin, each region of each bin and even each filter element are different;
2. and a plurality of filter elements are arranged in each bin, so that once a certain filter element is damaged and fails, the position of the damaged filter element is difficult to be timely determined for replacement.
Disclosure of Invention
In view of the foregoing deficiencies of the prior art, it is an object of the present invention to provide a pulse blowing control method, which solves one or more of the problems of the prior art.
In order to achieve the above 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 is pressure difference data between an air inlet and an air outlet of the dust remover;
taking the pressure difference data between the openings at two ends of the filter element as second pressure difference data, and detecting the second pressure difference data corresponding to each filter element when the first pressure difference data is abnormal so as to judge whether the filter element is abnormal or not;
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 performed on the corresponding filter element;
and reminding a worker to replace the corresponding filter element when the second differential pressure data is smaller than the numerical value of the second differential pressure range.
Further, when the second differential pressure data is smaller than the value of the second differential pressure range, the corresponding position of the filter element is recorded, so that the replacement of the worker is facilitated.
Further, when a plurality of filtering pieces need to be cleaned by pulse blowing, the filtering pieces are sequentially cleaned by blowing.
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 piece, the blowing mechanism is moved to the filter piece; after the pulse blowing treatment is completed, the blowing mechanism is removed to ensure that openings at two ends of the filter piece are smooth.
Further, the operation of moving the blowing mechanism is achieved by a driving mechanism provided in the dust remover.
Further, the process of detecting the second differential pressure data is realized through a first differential pressure gauge, the first differential pressure gauge is connected with a first measuring head and a second measuring head, the first measuring head and the second measuring head are respectively positioned at two ends of the filtering piece, the second measuring head is arranged on the blowing mechanism, and when the driving mechanism operates, the blowing mechanism and the second measuring head can be driven to pass through the top openings of the filtering pieces.
Further, the interval for detecting the first differential pressure data is 1min-20min.
Compared with the prior art, the invention has the following beneficial technical effects:
first differential pressure data are detected regularly, when the first differential pressure data are abnormal, second differential pressure data corresponding to each filter element are detected, whether each filter element is abnormal (blocked or damaged) can be judged through analysis of the second differential pressure data, then pulse blowing cleaning is carried out on the blocked filter element, a cleaning mode of uniform blowing cleaning is not adopted any more, blowing cleaning efficiency of a blowing structure on the filter element can be improved, energy of an air source is saved, and interference on smoke flow is reduced. In addition, the second differential pressure data corresponding to the filter element is analyzed, and the damaged filter element can be identified, so that a worker can find the position of the damaged filter element conveniently and replace the damaged filter element.
And secondly, pulse blowing cleaning is carried out on the blocked filtering pieces one by one, so that the interference of air flow of a blowing mechanism on the flow of the smoke can be reduced, and the flow stability of the smoke is improved.
And thirdly, after the pulse blowing treatment is finished, the blowing mechanism is moved away, and the opening at the two ends of the filter piece is ensured to be smooth, so that the interference of the blowing mechanism on the flow of smoke is reduced.
And (IV) the air pressure of the dust-containing flue gas before passing through each filter element is the same, and the air pressure of the dust-containing flue gas when flowing out of each filter element is different because the blocking degree and the surface breakage degree of each filter element are 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 air pressure of the flue gas flowing out of the filtering piece, and the injection mechanism and the second measuring head can pass through the top openings of the filtering pieces in the moving process, so that the second measuring head does not need to be arranged in one-to-one correspondence with the filtering pieces, the using amount of the second measuring head can be reduced, and the configuration cost of the pulse injection device is reduced.
Drawings
FIG. 1 shows a schematic diagram of a pulse blowing device and a dust collector in an embodiment of the invention;
FIG. 2 shows a schematic diagram of the connection of a dust collector to a second differential pressure gauge in an embodiment of the invention;
FIG. 3 is a flow chart of a pulse-jet control method in an embodiment of the invention;
FIG. 4 shows a schematic structural view of a pattern plate in an embodiment of the present invention;
FIG. 5 is a schematic diagram showing the connection of the second measuring head to the air reservoir according to an embodiment of the present invention.
The reference numerals in the drawings:
1. an ash bucket; 11. a first case; 111. a pipe; 112. a flower plate; 113. a filter; 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. the CRT industrial personal computer; 62. and an alarm lamp.
Detailed Description
In order to make the objects, technical schemes and advantages of the present invention more apparent, a pulse blowing control method according to the present invention will be described in further detail with reference to the accompanying drawings and detailed description. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for the purpose of facilitating and clearly aiding in the description of embodiments of the invention. For a better understanding of the invention with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that any modifications, changes in the proportions, or adjustments of the sizes of structures, proportions, or otherwise, used in the practice of the invention, are included in the spirit and scope of the invention which is otherwise, without departing from the spirit or essential characteristics thereof.
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 sequentially arranged from bottom to top, the first box 11 is sequentially communicated with the second box 12, wherein an air inlet and an air outlet are formed in a side surface of the first box 11, 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, twelve chambers are separated from the first box body 11 through the plate bodies, and the twelve chambers are symmetrically arranged on two sides of the first box body 11. The top of each bin is provided with a pattern plate 112, twelve groups of through holes are uniformly distributed on the pattern plate 112, and the twelve groups of through holes are distributed in a 3 multiplied by 4 layout. The number of each group of through holes is sixteen, the through holes in the same group are distributed in a 4×4 layout, each through hole is provided with a filter element 113, and the filter element 113 in the embodiment is a cloth bag. The number of the ash hoppers 1 is also twelve, each ash hopper 1 corresponds to one bin, the ash hoppers 1 are arranged right below the corresponding bin and are communicated with the corresponding bin, and each ash hopper 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 is pressure difference data between an air inlet and an air outlet of the dust remover;
s2, taking the pressure difference data between the openings at the two ends of the filter element 113 as second pressure difference data, and detecting the second pressure difference data corresponding to each filter element 113 when the first pressure difference data is abnormal so as to judge whether the filter element 113 is abnormal;
s3, if the filter element 113 is abnormal, pulse blowing cleaning or replacement is carried out on the abnormal filter element 113.
In this embodiment, the operation state of the dust remover can be analyzed by periodically detecting the first differential pressure data, and then the respective filter elements 113 are detected according to the operation state of the dust remover. The state of the filter 113 may be analyzed by detecting the second differential pressure data corresponding to each filter 113. As dust adhering to the surface of the filter element 113 increases, the filter element 113 may be clogged, so that a pressure difference between the flow of flue gas passing through the filter element 113 increases, and if the filter element 113 is broken, the pressure difference between the flow of flue gas passing through the filter element 113 decreases. By monitoring the differential pressure data across the filter element 113 with the first differential pressure gauge 2, it is possible to determine whether the filter element 113 is clogged, and whether the filter element 113 is broken. If the filter element 113 is blocked, the corresponding filter element 113 is cleaned by blowing, and if the filter element 113 is damaged, the corresponding filter element 113 is positioned, so that a worker can conveniently identify the damaged filter element 113 and replace the damaged filter element. It should be understood that, in addition to periodically detecting the first differential pressure data, the change of the first differential pressure data may also be continuously monitored, so as to facilitate timely knowing the working state of the dust collector.
Further, a first pressure difference range and a second pressure difference range are preset, in this embodiment, when the dust collector works normally to filter dust-laden gas, first pressure difference data and second pressure difference data are recorded, and the first pressure difference range and the second pressure difference range are set according to the distribution range of the first pressure difference data and the second pressure difference data. The "first differential pressure data anomaly" in this embodiment is expressed as that the first differential pressure data is out of the first differential pressure range. If the second differential pressure data is outside the second differential pressure range, the second differential pressure data is abnormal, which indicates that the corresponding filter 113 is abnormal (there is a problem of clogging or breakage).
Specifically, when the second differential pressure data is greater than the value of the second differential pressure range, pulse blowing cleaning is performed on the corresponding filter 113; when the second differential pressure data is smaller than the value of the second differential pressure range, the staff is reminded to replace the corresponding filter 113. The blocked filtering piece 113 is subjected to blowing cleaning, so that the blowing cleaning efficiency can be improved, and the energy consumption of an air source is reduced; the damaged filter element 113 is replaced in time, so that the filter element 113 can be ensured to normally finish the filtering work, and dust-containing flue gas is prevented from directly flowing out of the air outlet of the dust remover.
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 the corresponding position of the filter element 113 is recorded, so that the replacement of the worker is facilitated. When the position of the broken filter element 113 is recorded, the worker can conveniently identify and replace the broken filter element 113 when replacing the broken filter element 113.
Further, when there are a plurality of filter elements 113 to be cleaned by pulse blowing, the cleaning of each filter element 113 is sequentially performed. The plurality of filtering pieces 113 are sequentially subjected to blowing cleaning, so that the interference of pulse blowing treatment on the flow of the dust-containing smoke can be reduced, the smoothness and stability of the flow of the dust-containing smoke 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 filter element 113; after the pulse blowing treatment is completed, the blowing mechanism is removed to ensure that the openings at the two ends of the filter element 113 are smooth.
Referring to fig. 1 to 5, the solution in this embodiment may be implemented by the following devices:
a pulse blowing device comprises a first differential pressure meter 2 for detecting second differential pressure data and a second differential pressure meter 5 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 mounted on the side wall of the second box 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 for accommodating the power transmission line is further mounted in the second box 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 an air storage bag 3, and the air storage bag 3 is externally connected with an air source (not shown in the figure). The air storage bag 3 is also communicated with a plurality of pulse injection valves 31, the driving mechanism drives the air storage bag 3 to slide, and the position of the pulse injection valves 31 can be adjusted, so that the pulse injection valves 31 are aligned with the filter 113 to be cleaned. In this embodiment, the stator of the linear motor 4 is directly mounted on the side wall of the second case 12, but it is also possible to provide a bracket on the side wall of the second case 12 and mount the stator of the linear motor 4 on the bracket.
Specifically, the first differential pressure gauge 2 is connected with 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 element 113, so as to monitor differential pressure data of the dust-laden flue gas flow before and after passing through the filter element 113. In this embodiment, only one first measuring head 21 is provided, and the first measuring head 21 is installed in the first housing 11 and is lower than the bottom end of the filter 113; the second measuring heads 22 are provided with a plurality of second measuring heads 22, the second measuring heads 22 are all installed on the side face of the air storage bag 3, when the second measuring heads 22 are aligned with the top end opening of one filtering piece 113, the first differential pressure meter 2 measures the air pressure data of the top end and the bottom end of the filtering piece 113 through the first measuring heads 21 and the second measuring heads 22, and then the differential pressure change of the dust-containing smoke flow before and after passing through the filtering piece 113 can be measured. As the air reservoir 3 moves, the second measuring head 22 passes through the plurality of filter elements 113, thereby detecting the pressure difference across each filter element 113. The air pressure before the dust-containing flue gas passes through each filter element 113 is the same, and the air pressure when the dust-containing flue gas flows out of each filter element 113 is different due to the different blocking degree and surface breakage degree of each filter element 113, and the pressure difference before and after the dust-containing flue gas passes through different filter elements 113 can be measured by utilizing the cooperation of the first measuring head 21 and the second measuring head 22 so as to be used for analyzing whether the filter elements 113 are broken or blocked.
Specifically, twelve pulse blowing valves 31 are installed on the side surface of the gas storage bag 3, the twelve pulse blowing valves 31 are arranged along the Y direction, twelve corresponding second measuring heads 22 are also arranged, and the twelve second measuring heads 22 are all connected with the first differential pressure meter 2. In this embodiment, four groups of through holes are distributed in the X direction and three groups of through holes are distributed in the Y direction in each chamber, and the positions of the twelve measuring heads are aligned with the twelve filter elements 113 arranged in the Y direction. When the driving mechanism drives the air storage bag 3 to slide along the X direction, the second measuring heads 22 pass through the plurality of filtering pieces 113 along the X direction, so that air pressure data of the top end openings of the filtering pieces 113 can be collected, namely, each second measuring head 22 can collect air pressure data of the top end openings 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 heads 21, so that pressure difference data of dust-containing smoke before and after passing through the filtering pieces 113 can be obtained. 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.
The two measuring heads of the second differential pressure meter 5 are respectively arranged at the air inlet and the air outlet for monitoring the differential pressure of the dust-containing flue gas before and after passing through the dust remover, and the second differential pressure meter 5 is electrically connected with the controller 6. The first pressure difference range and the second pressure difference range are preset in the controller 6, so that the controller 6 can analyze whether the first pressure difference data and the second pressure difference data are out of range. When the dust remover works, only the second differential pressure meter 5 works, the second differential pressure meter 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 meter 2, the differential pressure data at the two ends of each filter element 113 is detected, if the filter elements 113 are detected to be blocked, the pulse blowing valve 31 is started, and blowing treatment is carried out on the blocked filter elements 113; if breakage of the filter 113 is detected, the position of the filter 113 is recorded so that the worker can easily replace the broken filter 113. In addition, the degree of clogging of the filter element 113 can be determined according to the first pressure difference data, and when the controller 6 controls the pulse injection valve 31 to perform pulse injection treatment on the filter element 113, the opening degree of the pulse injection valve 31 can be adjusted according to the degree of clogging of the filter element 113, so that the injection strength and the injection duration of the pulse injection valve 31 are changed, and the working efficiency of the air source is improved.
After the detection and dredging of the filter elements 113 are completed, or after the identification work of the damaged filter elements 113 is completed, the driving mechanism drives the gas storage bag 3 to slide until the gas storage bag 3 is moved to be propped against the side wall of the second box body 12, so that the gas storage bag 3 avoids each filter element 113, and the smoothness of the smoke flowing at the top end opening of the filter element 113 is not affected. In this embodiment, the controller 6 is further connected with the CRT industrial personal computer 61, and when the controller 6 identifies the damaged filter element 113, the screen of the CRT industrial personal computer 61 displays the position of the damaged filter element 113, so that the corresponding filter element 113 can be quickly found and replaced when the worker maintains, and the working efficiency of the worker is improved. It should be noted that the driving mechanism may also be a motor matched with the ball screw assembly or other assemblies, so long as the driving mechanism can drive the air storage bag 3 to reciprocate.
The controller 6 is also electrically connected with an alarm component, and when the first pressure difference data is too large or too small, the controller 6 controls the alarm component to operate so as to remind a worker of paying attention to the working state of the dust remover. In this embodiment, the alarm assembly is an alarm lamp 62, and when the alarm lamp 62 works, an audible and visual signal is sent to remind the staff.
Working principle:
the first differential pressure data is detected regularly, when the first differential pressure data is abnormal, the second differential pressure data corresponding to each filter element 113 is detected, whether each filter element 113 is abnormal (blocked or damaged) can be judged through analysis of the second differential pressure data, then pulse blowing cleaning is carried out on the blocked filter element 113, a cleaning mode of uniform blowing cleaning is not adopted any more, blowing cleaning efficiency of a blowing structure on the filter element 113 can be improved, energy of an air source is saved, and interference on smoke flow is reduced. In addition, the broken filter element 113 can be identified by analyzing the second differential pressure data corresponding to the filter element 113, so that the worker can find the position of the broken filter element 113 and replace the broken filter element 113.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. A pulse blowing control method is characterized in that: comprising
Periodically detecting first pressure difference data, wherein the first pressure difference data is pressure difference data between an air inlet and an air outlet of the dust remover;
taking the pressure difference data between the openings at two ends of the filter element as second pressure difference data, and detecting the second pressure difference data corresponding to each filter element when the first pressure difference data is abnormal so as to judge whether the filter element is abnormal or not;
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;
presetting a second differential pressure range, and if the second differential pressure data is out of the second differential pressure range, the filter element is abnormal;
and if the filter element is abnormal, performing pulse blowing cleaning or replacement on the abnormal filter element.
2. A pulse-jet control method as defined in claim 1, wherein: when the second pressure difference data is larger than the numerical value of the second pressure difference range, performing pulse blowing cleaning on the corresponding filter element;
and reminding a worker to replace the corresponding filter element when the second differential pressure data is smaller than the numerical value of the second differential pressure range.
3. A pulse-jet control method as defined in claim 2, wherein: and when the second differential pressure data is smaller than the numerical value of the second differential pressure range, recording the corresponding position of the filter element so as to facilitate the replacement of staff.
4. A pulse-jet control method as defined in claim 2, wherein: when a plurality of filtering pieces need to be cleaned by pulse blowing, the filtering pieces are sequentially cleaned by blowing.
5. A pulse-jet control method as defined in claim 2, wherein: the blowing mechanism is movably arranged in the dust remover, and when pulse blowing treatment is required to be carried out on the filter piece, the blowing mechanism is moved to the filter piece; after the pulse blowing treatment is completed, the blowing mechanism is removed to ensure that openings at two ends of the filter piece are smooth.
6. The pulse-jet control method of claim 5, wherein: the operation of moving the blowing mechanism is realized by a driving mechanism, and the driving mechanism is arranged in the dust remover.
7. The pulse-jet control method of claim 6, wherein: the process of detecting the second differential pressure data is realized through a first differential pressure meter, the first differential pressure meter is connected with a first measuring head and a second measuring head, the first measuring head and the second measuring head are respectively positioned at two ends of the filter element, the second measuring head is arranged on the blowing mechanism, and when the driving mechanism operates, the blowing mechanism and the second measuring head can be driven to pass through the top openings of the filter elements.
8. A pulse-jet control method as defined in claim 1, wherein: the interval for detecting the first differential pressure data is 1min-20min.
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| CN202210305404.6A CN114534383B (en) | 2022-03-25 | 2022-03-25 | Pulse blowing control method |
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| CN202210305404.6A CN114534383B (en) | 2022-03-25 | 2022-03-25 | Pulse blowing control method |
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| CN114534383B true CN114534383B (en) | 2023-07-21 |
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| 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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