LU504071B1 - Automatic adjustment and conversion method of high voltage control system of electrostatic precipitator - Google Patents
Automatic adjustment and conversion method of high voltage control system of electrostatic precipitator Download PDFInfo
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- LU504071B1 LU504071B1 LU504071A LU504071A LU504071B1 LU 504071 B1 LU504071 B1 LU 504071B1 LU 504071 A LU504071 A LU 504071A LU 504071 A LU504071 A LU 504071A LU 504071 B1 LU504071 B1 LU 504071B1
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- ash
- ash collecting
- electrostatic precipitator
- weighing
- high voltage
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- 239000012717 electrostatic precipitator Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 18
- 238000005303 weighing Methods 0.000 claims abstract description 44
- 239000000428 dust Substances 0.000 claims abstract description 42
- 238000012806 monitoring device Methods 0.000 claims abstract description 10
- 230000008859 change Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 31
- 238000009825 accumulation Methods 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 22
- 238000004140 cleaning Methods 0.000 claims description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 11
- 239000003546 flue gas Substances 0.000 claims description 11
- 239000003245 coal Substances 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000003500 flue dust Substances 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/66—Applications of electricity supply techniques
- B03C3/68—Control systems therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/24—Details of magnetic or electrostatic separation for measuring or calculating parameters, efficiency, etc.
-
- 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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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electrostatic Separation (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
An automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator is provided according to the present application. The method includes the following steps: setting a reference value; obtaining data; determining data; adjusting an output. According to the present application, a dust concentration is detected by multiple dust collection units in a circulating weighing dust monitoring device by a weighing method, and a median dust concentration is calculated based on the detected dust concentrations to obtain more accurate dust concentration detection data. The dust concentration detection data and the real-time load data of a unit are matched with a preset database, and a corresponding duty ratio is determined to automatically adjust the current of a control cabinet, thereby automatically adjusting the operating power of the electrostatic precipitator. In this way, no matter how the load of the unit and the ash content change, the environmental protection index can be effectively guaranteed.
Description
AUTOMATIC ADJUSTMENT AND CONVERSION METHOD OF HIGH VOLTAGE
CONTROL SYSTEM OF ELECTROSTATIC PRECIPITATOR
[0001] The present application relates to the technical field of electrostatic precipitation equipment, and in particular to an automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator.
[0002] A high-voltage control cabinet of an electrostatic precipitator operates in the following manners:
[0003] first, the output power of a transformer is constant;
[0004] second, different currents are set for different load sections;
[0005] third, a secondary current is automatically adjusted based on the concentration of flue gas and dust at an outlet of the electrostatic precipitator.
[0006] Operating in the above manners has the following disadvantages.
[0007] first, energy consumption is high in low load and low ash content period;
[0008] second, the ash content changing greatly has a significant impact on the dust content at the outlet of the electrostatic precipitator;
[0009] third, at present, a turbidity meter of flue gas and dust concentration at the outlet of electrostatic precipitator on the market has poor accuracy, poor linearity, many factors affecting the measurement precision and poor reliability, and thus cannot be applied in this field.
[0010] The patent document CN201911028658.2 disclosed a high-frequency voltage control method and device for an electrostatic precipitator. The method includes: obtaining the basic ash content corresponding to different coal types and a unit operation coal quantity; determining, based on the base ash content and the unit operation coal quantity, a corresponding coal consumption and a corresponding total ash production amount under different loads within a preset time; determining, based on the total ash production amount and the proportion of ash produced by each power plant area within the unit power plant, a demanded voltage for each power plant area; controlling the electrostatic precipitator to release a high voltage of a corresponding level according to the demanded voltage. According to the present application, the content of ash entering different power plants is determined by using the integration of the ash quantity corresponding to the coal quantity under different loads, so as to determine the voltage level of the electrostatic precipitator in different power plants, and achieve energy saving and consumption reduction while ensuring system safety, which can save a lot of energy and greatly reduce the damage of equipment while ensuring good dust removal effect.
[0011] According to the technical solution of the above patent application, the integral of the corresponding ash amount can only be obtained indirectly by calculating based on the front- end data, and then the content of the ash entering different power plants can be determined.
However, the change in load of each unit is not closely related to the corresponding ash content, and the reaction cannot be transmitted fast, thereby being difficult to achieve good effects.
[0012] In view of the above problems, an automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator is provided according to the present application, which aims to solve the technical problems raised in the above conventional technology, that is, the dust concentration detection devices are inaccurate and the operating power of the electrostatic precipitator cannot be automatically adjusted, which in turn results in high energy consumption of the electrostatic precipitator in the period of low load and low ash content.
[0013] In order to achieve the above object, the following technical solutions are provided as follows according to the present application. An automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator includes the following steps:
[0014] S1, setting a reference value by setting a current of a control cabinet by a central controller based on an ash reference value of commonly used coal, and sets a duty ratio as a middle value;
[0015] S2, obtaining data by obtaining real-time weighing data of flue gas and dust at a front end of the electrostatic precipitator through a circulating weighing dust monitoring device, and transmitting the data to the central controller;
[0016] S3, determining data by determining a corresponding duty ratio by the central controller by matching a change in load parameter of a front-end unit and the data obtained in the step S2 with a preset duty ratio database;
[0017] S4, adjusting an output by automatically adjusting the current of the control cabinet based on the duty ratio determined in the step S3.
[0018] Further, the circulating weighing dust monitoring device in the step S2 includes a flue connecting frame, multiple ash collecting units are arranged in the middle of the flue connecting frame, lower ends of the ash collecting units are arranged on one side of an ash cleaning mechanism, and each of the ash collecting units is communicably connected to the central controller.
[0019] Further, each of the ash collecting units includes an ash accumulation column, an upper end of the ash accumulation column 1s arranged on an inner top surface of the flue connecting frame, a lower end of the ash accumulation column is embedded in a bottom surface of the flue connecting frame, the middle of the ash accumulation column is slidably connected to an ash collecting pipe, a fixing bracket 1s arranged below the ash accumulation column, a top surface of the fixing bracket is arranged on the bottom surface of the flue connecting frame, the middle of the ash collecting pipe is slidably connected to the middle of the fixing bracket, a motor is arranged on one side of the fixing bracket, an output end of the motor is coaxially connected to an ash collecting gear, the ash collecting gear is engaged with one side of the ash collecting pipe, and a weighing component is arranged at the lower part of the ash collecting pipe and the lower part of the fixing bracket.
[0020] Further, the ash accumulation column includes a cross cylinder, an upper sealing block is arranged at an upper end of the cross cylinder, a pipe mouth sealing groove is arranged in the middle of the upper sealing block, where a shape of the pipe mouth sealing groove is matched with a cross section of the ash collecting pipe, a lower sealing block is arranged at a lower end of the cross cylinder, the lower sealing block is embedded in the bottom surface of the flue connecting frame, where a sealing channel is defined in the middle of the lower sealing block, and an outer side of the ash collecting pipe is slidably connected to an interior of the sealing channel.
[0021] Further, an ash column clamping groove is defined on one side of the ash collecting pipe, ash collecting sliding grooves are symmetrically defined on two sides of the ash column clamping groove, a rack is arranged at one side of each of the ash collecting sliding grooves,
each of the racks is engaged with the ash collecting gear, where an ash collecting scraper is arranged at an inner upper end of the ash collecting pipe, one side of the ash collecting scraper is slidably connected to a windward side of the ash accumulation column, and a spoiler is arranged above the ash collecting scraper.
[0022] Further, sliding limit strips are symmetrically arranged on two sides of an inner part of the fixing bracket, and the sliding limit strips are respectively slidably connected to two sides of the ash collecting pipe.
[0023] Further, the weighing component includes a bearing block, the bearing block is arranged inside the ash collecting pipe, a bottom surface of the bearing block is arranged at one end of a weighting sensor, the other end of the weighing sensor is arranged in the middle of a top surface of a weighing bracket, and the weighing bracket is arranged at a lower part of the fixing bracket.
[0024] Further, the ash cleaning mechanism includes an ash storage box, multiple ash suction nozzles are arranged on one side of an upper part of the ash storage box, actuating ends of the ash suction nozzles are respectively arranged at a lower side of the ash collecting units, ash cleaning brackets are respectively arranged on two sides of each of the ash suction nozzles, one end of the ash cleaning brackets is arranged at two sides of the lower part of the ash collecting units, multiple air suction pipes are arranged at one side of the upper part of the ash storage box, and the air suction pipes are connected with an external air suction pump through pipelines.
[0025] Further, multiple ash guide plates are arranged in the middle of the ash storage box, positions of the ash guide plates correspond to positions of the ash suction nozzles, respectively, and a bottom surface of the ash storage box is slidably connected to an ash removal extraction plate.
[0026] Further, the preset duty ratio database in the step S3 is an optimal duty ratio database corresponding to a combination of the load parameter of the front-end unit and the weighing data of the flue gas and dust at the front end of the electrostatic precipitator. The optimal duty ratio database is data sets with monitoring data and duty ratio being optimally collocated obtained through many experiments.
[0027] Compared with the conventional technology, the present application has the following advantageous effects.
[0028] The dust concentration is detected by multiple dust collection units in a circulating weighing dust monitoring device by a weighing method, and a median dust concentration 1s calculated based on the detected dust concentrations to obtain more accurate dust concentration detection data. The dust concentration detection data and the real-time load data 5 of a unit are matched with a preset database, and a corresponding duty ratio is determined to automatically adjust the current of the control cabinet, thereby automatically adjusting the operating power of the electrostatic precipitator. In this way, no matter how the load of the unit and the ash content change, the environmental protection index can be effectively guaranteed.
[0029] FIG. 1 is a schematic structural view showing an appearance of a circulating weighing dust monitoring device according to the present application;
[0030] FIG. 2 is an exploded schematic view of an internal structure of a circulating weighing dust monitoring device according to the present application;
[0031] FIG. 3 is an exploded schematic structural view of an ash collecting unit according to the present application;
[0032] FIG. 4 is an exploded schematic structural view of an ash accumulation column according to the present application;
[0033] FIG. 5 is a schematic sectional view of an internal structure of an ash collecting pipe according to the present application;
[0034] FIG. 6 is a schematic structural view of a fixing bracket according to the present application;
[0035] FIG. 7 is a schematic structural view of a weighing component according to the present application; and
[0036] FIG. 8 is a schematic sectional structural view of an ash cleaning mechanism according to the present application.
[0037] Reference numerals in the drawings is listed as follows: 1, flue connecting frame; 2, ash collecting unit; 21, ash accumulation column; 211, cross cylinder, 212, upper sealing block; 213, pipe mouth sealing groove; 214, lower sealing block; 215, sealing channel; 22, ash collecting pipe; 221, ash column clamping slot; 222, ash collecting sliding groove; 223, rack; 224, ash collecting scraper; 225, spoiler; 23, fixing bracket; 231, sliding limit strip; 24,
motor, 25, ash collecting gear, 26, weighing component; 261, bearing block; 262, weighing sensor, 263, weighing bracket; 3, ash cleaning mechanism; 31, ash storage box; 311, ash guide plate; 312, ash removal extraction plate; 32, ash suction nozzle; 33, ash cleaning bracket; 34, air suction pipe.
[0038] In order to facilitate the understanding of the present application, the present application will be described in full details with reference to the relevant drawings, several embodiments of the present application are shown in the attached drawings. However, the present application can be implemented in different forms, and is not limited to the embodiments described in the specification. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.
[0039] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on another element or there may be an intermediate element, when an element is considered to be "connected" to the other element, it can be directly connected to the other element or there may be an intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the specification are for illustrative purposes only.
[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the technical field of the present application. Terms used in the specification of the present application are only for the purpose of describing particular embodiments and is not aimed to limit the present application. The term "and/or" as used herein includes any and all combinations of one or more related listed items.
[0041] In an embodiment, an automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator includes the following steps S1 to S4.
[0042] In S1, a reference value is set by setting a current of a control cabinet by a central controller based on an ash reference value of commonly used coal, and setting a duty ratio as a middle value. — [0043] In S2, data is obtained by obtaining real-time weighing data of flue gas and dust at a front end of the electrostatic precipitator through a circulating weighing dust monitoring device, and transmitting the data to the central controller;
[0044] In S3, data is determined by determining a corresponding duty ratio by the central controller by matching a change in load parameter of a front-end unit and the data obtained in the step S2 with a preset duty ratio database;
[0045] In S4, an output is adjusted by automatically adjusting the current of the control cabinet based on the duty ratio determined in the step S3.
[0046] In an embodiment, with particular reference to FIG. 1 to FIG. 2, the circulating weighing dust monitoring device in the step S2 includes a flue connecting frame 1, multiple ash collecting units 2 are arranged in the middle of the flue connecting frame 1, lower ends of the ash collecting units 2 are arranged on one side of an ash cleaning mechanism 3, and each of the ash collecting units 2 is communicably connected to the central controller. In this embodiment, multiple ash collecting units 2 collect data at the same time, and a median of the collected data is calculated to obtain more accurate monitoring data.
[0047] In an embodiment, with particular reference to FIG. 3, each of the ash collecting units 2 includes an ash accumulation column 21, an upper end of the ash accumulation column 21 is arranged on an inner top surface of the flue connecting frame 1, a lower end of the ash accumulation column 21 is embedded in a bottom surface of the flue connecting frame 1, the middle of the ash accumulation column 21 is slidably connected to an ash collecting pipe 22, a fixing bracket 23 is arranged below the ash accumulation column 21, a top surface of the fixing bracket 23 is arranged on the bottom surface of the flue connecting frame 1, the middle of the ash collecting pipe 22 is slidably connected to the middle of the fixing bracket 23, a motor 24 is arranged on one side of the fixing bracket 23, an output end of the motor 24 is coaxially connected to an ash collecting gear 25, the ash collecting gear 25 is engaged with one side of the ash collecting pipe 22, and a weighing component 26 is arranged at the lower part of the ash collecting pipe 22 and the lower part of the fixing bracket 23. In this embodiment, the motor 24 drives the ash collecting gear 25 to rotate, and then drives the ash collecting pipe 22 to move up and down.
[0048] With particular reference to FIG. 4, the ash accumulation column 21 includes a cross cylinder 211, an upper sealing block 212 is arranged at an upper end of the cross cylinder 211, a pipe mouth sealing groove 213 is arranged in the middle of the upper sealing block 212. A shape of the pipe mouth sealing groove 213 is matched with a cross section of the ash collecting pipe 22, a lower sealing block 214 is arranged at a lower end of the cross cylinder 211, and the lower sealing block 214 is embedded in the bottom surface of the flue connecting frame 1. A sealing channel 215 is defined in the middle of the lower sealing block 214, and an outer side of the ash collecting pipe 22 is slidably connected to an interior of the sealing channel 215. The amount of dust accumulated on the windward side of the cross cylinder 211 depends on the dust concentration in the flue gas.
[0049] With particular reference to FIG. 5, an ash column clamping groove 221 is defined on one side of the ash collecting pipe 22, ash collecting sliding grooves 222 are symmetrically defined on two sides of the ash column clamping groove 221, a rack 223 is arranged at one side of each of the ash collecting sliding grooves 222, each of the racks 223 is engaged with the ash collecting gear 25. An ash collecting scraper 224 is arranged at an inner upper end of the ash collecting pipe 22, and one side of the ash collecting scraper 224 is slidably connected to a windward side of the ash accumulation column 21. A spoiler 225 is arranged above the ash collecting scraper 224. During the ascent of the ash collecting pipe 22, the ash collecting scraper 224 scrapes off the dust accumulated on the windward side of the cross cylinder 211, and the dust falls from the ash collecting pipe 22 onto the weighing component 26.
[0050] With particular reference to FIG. 6, sliding limit strips 231 are symmetrically arranged on two sides of an inner part of the fixing bracket 23, and the sliding limit strips 231 are respectively slidably connected to two sides of the ash collecting pipe 22. In this embodiment, the sliding limit strip 231 limits the vertical movement state of the ash collecting pipe 22.
[0051] With particular reference to FIG. 7, the weighing component 26 includes a bearing block 261, the bearing block 261 is arranged inside the ash collecting pipe 22, a bottom surface of the bearing block 261 is arranged at one end of a weighing sensor 262, the other end of the weighing sensor 262 is arranged in the middle of a top surface of a weighing bracket 263, and the weighing bracket 263 is arranged at a lower part of the fixing bracket 23.
In this embodiment, the falling dust is received by the bearing block 261, and the data is obtained by the weighing sensor 262.
[0052] For example, with particular reference to FIG. 8, the ash cleaning mechanism 3 includes an ash storage box 31, multiple ash suction nozzles 32 are arranged on one side of an upper part of the ash storage box 31, actuating ends of the ash suction nozzles 32 are respectively arranged at a lower side of the ash collecting units 2, ash cleaning brackets 33 are respectively arranged on two sides of each of the ash suction nozzles 32, one end of the ash cleaning brackets 33 is arranged at two sides of the lower part of the ash collecting units 2, multiple air suction pipes 34 are arranged at one side of the upper part of the ash storage box
31, and the air suction pipes 34 are connected with an external air suction pump through pipelines. Multiple ash guide plates 311 are arranged in the middle of the ash storage box 31, positions of the ash guide plates 311 correspond to positions of the ash suction nozzles 32, respectively, and a bottom surface of the ash storage box 31 is slidably connected to an ash removal extraction plate 312. In this embodiment, a negative pressure is generated in the ash storage box 31 by an external air pump, causing multiple ash suction nozzles 32 to respectively suck dust from the bearing block 261 into the ash storage box 31. Under the action of the ash guide plate 311, the dust falls to the lower part of the ash storage box 31 and is not sucked away by the external air pump. The ash removal extraction plate 312 is pulled outregularly, thereby discharging the dust.
[0053] In an embodiment, the preset duty ratio database in the step S3 is an optimal duty ratio database corresponding to a combination of the load parameter of the front-end unit and the weighing data of the flue gas and dust at the front end of the electrostatic precipitator. Duty ratios most suitable for operation powers of the electrostatic precipitator corresponding to dust weighing data is determined through many experiments, where the dust weighing data is detected under different unit load parameters. The duty ratios are collected into a database for quick call in practical application.
[0054] The duty ratio is set as 3 based on the ash content of common coal being the reference value, the duty ratio of each control cabinet is automatically adjusted when the ash content changes beyond a set reference value range. The duty ratio is set as 0:6/6, 1:6/7, 2:6/8, 3:6/9, 4:6/10, and so on.
[0055] Operating principle: firstly, the motor 24 starts forward or reversely to drive the ash collecting gear 25 to rotate forward or backward, and then drives the ash collecting pipe 22 to move up and down. During the descending process of the ash collecting pipe 22, the cross cylinder 211 is exposed to the flue gas, the windward side of the cross cylinder begins to accumulate dust, and the amount of accumulated dust depends on the dust concentration in the flue gas. During the ascent of the ash collecting pipe 22, the ash collecting scraper 224 scrapes off the dust accumulated in the windward side of the cross cylinder 211, the dust falls in the ash collecting pipe 22 onto the bearing block 261, and the data is obtained by the weighing sensor 262. After the data is obtained, in the ash cleaning mechanism 3, a negative pressure is generated in the ash storage box 31 by an external air pump, causing multiple ash suction nozzles 32 to respectively suck dust from the bearing block 261 into the ash storage box 31. Under the action of the ash guide plate 311, the dust falls to the lower part of the ash storage box 31 and is not sucked away by the external air pump. That is, a load bearing monitoring is completed, the central controller determines a corresponding duty ratio by matching a change in the load parameter of the front-end unit and the obtained monitoring data with the preset duty ratio database, thereby automatically adjusting the current of the control cabinet.
[0056] The present application is exemplarily described above in combination with the attached drawings. Apparently, the specific implementation of the present application is not limited by the above methods. As long as the non-substantive improvement of the method concept and technical solution of the present application is adopted, or the idea and technical solution of the present application are directly applied to other occasions without improvement, it is within the scope of protection of the present application.
Claims (10)
1. An automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator, comprising the following steps: S1, setting a reference value by setting a current of a control cabinet by a central controller based on an ash reference value of commonly used coal, and setting a duty ratio as a middle value; S2, obtaining data by obtaining real-time weighing data of flue gas and dust at a front end of the electrostatic precipitator through a circulating weighing dust monitoring device, and transmitting the data to the central controller; S3, determining data by determining a corresponding duty ratio by the central controller by matching a change in load parameter of a front-end unit and the data obtained in the step S2 with a preset duty ratio database; S4, adjusting an output by automatically adjusting the current of the control cabinet based on the duty ratio determined in the step S3.
2. The automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator according to claim 1, wherein the circulating weighing dust monitoring device in the step S2 comprises a flue connecting frame (1), a plurality of ash collecting units (2) are arranged in the middle of the flue connecting frame (1), lower ends of the ash collecting units (2) are arranged on one side of an ash cleaning mechanism (3), and each of the ash collecting units (2) is communicably connected to the central controller.
3. The automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator according to claim 2, wherein each of the ash collecting units (2) comprises an ash accumulation column (21), an upper end of the ash accumulation column (21) 1s arranged on an inner top surface of the flue connecting frame (1), a lower end of the ash accumulation column (21) is embedded in a bottom surface of the flue connecting frame (1), the middle of the ash accumulation column (21) is slidably connected to an ash collecting pipe (22), a fixing bracket (23) is arranged below the ash accumulation column (21), a top surface of the fixing bracket (23) is arranged on the bottom surface of the flue connecting frame (1), the middle of the ash collecting pipe (22) is slidably connected to the middle of the fixing bracket (23), a motor (24) is arranged on one side of the fixing bracket (23), an output end of the motor (24) is coaxially connected to an ash collecting gear (25), the ash collecting gear (25) is engaged with one side of the ash collecting pipe (22), and a weighing component (26) is arranged at the lower part of the ash collecting pipe (22) and the lower part of the fixing bracket (23).
4. The automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator according to claim 3, wherein the ash accumulation column (21) comprises a cross cylinder (211), an upper sealing block (212) is arranged at an upper end of the cross cylinder (211), a pipe mouth sealing groove (213) is arranged in the middle of the upper sealing block (212), wherein a shape of the pipe mouth sealing groove (213) is matched with a cross section of the ash collecting pipe (22), a lower sealing block (214) is arranged at a lower end of the cross cylinder (211), the lower sealing block (214) is embedded in the bottom surface of the flue connecting frame (1), wherein a sealing channel (215) is defined in the middle of the lower sealing block (214), and an outer side of the ash collecting pipe (22) is slidably connected to an interior of the sealing channel (215).
5. The automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator according to claim 3, wherein an ash column clamping groove (221) is defined on one side of the ash collecting pipe (22), ash collecting sliding grooves (222) are symmetrically defined on two sides of the ash column clamping groove (221), a rack (223) is arranged at one side of each of the ash collecting sliding grooves (222), each of the racks (223) is engaged with the ash collecting gear (25), wherein an ash collecting scraper (224) 1s arranged at an inner upper end of the ash collecting pipe (22), one side of the ash collecting scraper (224) is slidably connected to a windward side of the ash accumulation column (21), and a spoiler (225) is arranged above the ash collecting scraper (224).
6. The automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator according to claim 3, wherein sliding limit strips (231) are symmetrically arranged on two sides of an inner part of the fixing bracket (23), and the sliding limit strips (231) are respectively slidably connected to two sides of the ash collecting pipe (22).
7. The automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator according to claim 3, wherein the weighing component (26) comprises a bearing block (261), the bearing block (261) is arranged inside the ash collecting pipe (22), a bottom surface of the bearing block (261) is arranged at one end of a weighing sensor (262), the other end of the weighing sensor (262) is arranged in the middle of a top surface of a weighing bracket (263), and the weighing bracket (263) is arranged at a lower part of the fixing bracket (23).
8. The automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator according to claim 2, wherein the ash cleaning mechanism (3) comprises an ash storage box (31), a plurality of ash suction nozzles (32) are arranged on one side of an upper part of the ash storage box (31), actuating ends of the ash suction nozzles (32) are respectively arranged at a lower side of the ash collecting units (2), ash cleaning brackets (33) are respectively arranged on two sides of each of the ash suction nozzles (32), one end of the ash cleaning brackets (33) is arranged at two sides of the lower part of the ash collecting units (2), a plurality of air suction pipes (34) are arranged at one side of the upper part of the ash storage box (31), and the air suction pipes (34) are connected with an external air suction pump through pipelines.
9. The automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator according to claim 8, wherein a plurality of ash guide plates (311) are arranged in the middle of the ash storage box (31), positions of the ash guide plates (311) correspond to positions of the ash suction nozzles (32), respectively, and a bottom surface of the ash storage box (31) is slidably connected to an ash removal extraction plate (312).
10. The automatic adjustment and conversion method of a high voltage control system of an electrostatic precipitator according to claim 1, wherein the preset duty ratio database in the step S3 is an optimal duty ratio database corresponding to a combination of the load parameter of the front-end unit and the weighing data of the flue gas and dust at the front end of the electrostatic precipitator.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310260167.0A CN116273474A (en) | 2023-03-17 | 2023-03-17 | Automatic adjustment and conversion method for high-voltage control system of electric dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU504071B1 true LU504071B1 (en) | 2023-10-26 |
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| CN109482004B (en) * | 2017-09-12 | 2021-09-14 | 苏州协昌环保科技股份有限公司 | Intelligent industrial flue gas and dust treatment cloud platform and control method thereof |
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| CN113134905A (en) * | 2021-04-27 | 2021-07-20 | 华能国际电力股份有限公司营口电厂 | Wet desulphurization high-salinity material and fly ash blending control method and system |
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