CN115493671A - Material level monitoring method and system of ash bucket for electrostatic dust removal device - Google Patents
Material level monitoring method and system of ash bucket for electrostatic dust removal device Download PDFInfo
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- CN115493671A CN115493671A CN202210952581.3A CN202210952581A CN115493671A CN 115493671 A CN115493671 A CN 115493671A CN 202210952581 A CN202210952581 A CN 202210952581A CN 115493671 A CN115493671 A CN 115493671A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
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- 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
- B03C3/88—Cleaning-out collected particles
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Control Of Conveyors (AREA)
Abstract
The application discloses material level monitoring method of ash bucket for electrostatic precipitator device, through material level detection device acquires the material level data to according to predetermined operating parameter contrast table, confirm the operating parameter of dust pelletizing system and fortune ash system, and then make dust pelletizing system and fortune ash system move with more energy-conserving mode. The application also discloses a material level monitoring system of ash bucket for electrostatic precipitator detects the height that solid powder piles up in the ash bucket through material level detection device to obtain the material level data, confirm the operating parameter of dust pelletizing system and fortune ash system through the analysis and processing module analysis, and then make dust pelletizing system and fortune ash system move with more energy-conservation, low-loss mode.
Description
Technical Field
The invention relates to the technical field of power plant ash removal, in particular to a material level monitoring method and system of an ash hopper for an electrostatic dust removal device.
Background
The dust remover is an important device in a thermal power plant, the widely applied dust remover comprises an electrostatic dust remover, an ash hopper for collecting solid dust is arranged below the electrostatic dust remover, and after the dust remover runs for a certain period, a discharge valve at the bottom of the ash hopper is opened, so that the solid dust in the ash hopper is discharged to an ash conveying system.
The existing ash bucket is not provided with a real-time detection device for solid-state dust, and ash discharge of the ash bucket is carried out according to a period, so that the solid-state dust is easily accumulated in the ash bucket too high, an electrode plate in contact with a dust remover is arranged, the function failure of the electrode plate and even the deformation of a motor plate can be caused, and the ash bucket only carries out ash removal according to the period because the amount of the solid-state dust generated by power generation equipment of a power plant is not the same all the time, and the energy-saving operation of an ash removal system and an ash conveying system is not facilitated.
Disclosure of Invention
The invention aims to provide a method and a system capable of monitoring the accumulation degree of solid dust in an ash hopper in real time, so that the ash hopper can shoot ash according to the accumulation of the solid dust, and further mechanical loss and energy loss are reduced.
The invention discloses a material level monitoring method of an ash bucket for an electrostatic dust removal device, which is applied with a material level detection device, wherein the material level detection device is arranged in the ash bucket, and the method comprises the following steps:
presetting a system operation parameter comparison table, wherein the system operation parameter comparison table is used for determining operation parameters of a dust removal system and an ash conveying system according to the material level data in the ash hopper;
and acquiring the material level data acquired by the material level detection device, determining the operating parameters of the dust removal system and the ash conveying system according to a preset system operating parameter comparison table, and driving the dust removal system and the ash conveying system to operate according to the determined operating parameters.
In some embodiments of the present application, a plurality of level monitoring devices are disclosed, the level monitoring devices being any one of a mechanical level gauge, a capacitive level gauge, a permanent magnetic level gauge, a radio frequency admittance level gauge, a tuning fork level gauge, a vibrating rod level gauge and a weight level gauge.
In some embodiments of the present application, the method is improved in order to be able to determine whether the level monitoring device is malfunctioning, the method further comprising:
a material level switch is also arranged in the ash hopper and used for determining whether the solid dust reaches the height of the ash hopper;
if the material level switch detects that the solid dust reaches the height of the material level switch, the material level detection device detects that the material level data is compared with the height of the material level switch, and if the difference value between the material level data and the height of the material level switch is smaller than a preset value, the material level detection device is judged to normally operate.
In some embodiments of the present application, a specific structure of the material level detection device is disclosed, the material level detection device comprises a motor, a packing auger plate and a rotation speed detection device;
the middle shaft of the auger plate is connected with the output shaft of the motor, and the rotating speed detection device is connected with the middle shaft of the auger plate;
the method for detecting the height of the solid powder in the ash hopper by the material level device comprises the following steps:
the motor is driven to drive the auger plate to rotate according to rated power;
and acquiring auger plate rotation data detected by the rotation speed detection device, and judging the height of the solid powder in the ash hopper according to the auger plate rotation data.
In some embodiments of the present application, there is provided a method for enabling the level detecting device to determine the height of the solid powder, the method for determining the height of the solid powder in the ash hopper according to the rotation data of the auger plate comprising:
and presetting a solid powder height comparison table, wherein the solid powder height comparison table is used for determining the height of the solid powder in the ash bucket according to the rotation data of the auger plate.
In some embodiments of the present application, specific contents of a powder height control table are disclosed, the contents of the powder height control table including:
the height points determine the points where the height of the solid powder in the ash bucket reaches;
and the rotating speed values of the auger plates correspond to the height point positions one by one.
In some embodiments of the present application, in order to enable a worker to know the operation states of the dust removal system and the ash conveying system accurately in time, the method further includes:
drawing a dust removal and ash transportation dynamic picture, and determining the dynamic characteristics of the dust removal and ash transportation dynamic picture according to the material level data, the operation parameters of the dust removal system and the operation parameters of the ash transportation system.
The application discloses material level monitoring method of ash bucket for electrostatic precipitator device, through material level detection device acquires the material level data to according to predetermined operating parameter contrast table, confirm the operating parameter of dust pelletizing system and fortune ash system, and then make dust pelletizing system and fortune ash system move with more energy-conserving mode.
In some embodiments of the present application, there is also disclosed a level monitoring system of an ash bucket for an electrostatic precipitator, wherein the apparatus comprises:
the material level detection device is used for detecting the accumulation height of solid powder in the ash hopper so as to obtain material level data;
the analysis processing module is used for determining the operating parameters of the dust removal system and the ash conveying system;
the analysis processing module is internally provided with a system operation parameter comparison table, and the analysis processing module inquires the corresponding quantity of the material level data in the system parameter comparison table, determines the operation parameters of the dust removal system and the operation parameters of the ash conveying system, and drives the dust removal system and the ash conveying system to operate according to the determined operation parameters.
In some embodiments of the present application, in order to enable the system to determine whether the level detection device is malfunctioning, the system further comprises a plurality of level switches disposed in the ash hopper, the level switches being configured to determine whether the solid dust reaches a self-height;
if the analysis processing module acquires the trigger signal of the material level switch, the detection result of the material level detection device is compared with the self height of the material level switch, and if the difference value between the material level data and the self height of the material level switch is smaller than a preset value, the operation of the material level detection device is judged to be normal.
In some embodiments of the present application, a specific structure and an application method of a material level detection device applied to the system are further provided, the material level detection device includes a motor, a auger plate and a rotation speed detection device, a middle shaft of the auger plate is connected with an output shaft of the motor, and the rotation speed detection device is connected with the middle shaft of the auger plate;
the method for detecting the height of the solid powder in the ash hopper by the material level device comprises the steps of driving the motor to drive the auger plate to rotate according to rated power, then obtaining auger plate rotation data detected by the rotating speed detection device, and judging the height of the solid powder in the ash hopper according to the auger plate rotation data;
the method for judging the height of the solid powder in the ash bucket according to the rotation data of the auger plate comprises the steps of presetting a solid powder height comparison table, wherein the solid powder height comparison table is used for determining the height of the solid powder in the ash bucket according to the rotation data of the auger plate;
wherein, the content of the solid powder height comparison table comprises: the ash bucket comprises a plurality of height point positions and a plurality of auger plate rotating speed values, wherein the height point positions are determined by the point positions where the height of solid powder in the ash bucket reaches, and the auger plate rotating speed values correspond to the height point positions one by one.
The application also discloses a material level monitoring system of ash bucket for electrostatic precipitator device detects the height that solid powder is piled up in the ash bucket through material level detection device to obtain the material level data, confirm the operating parameter of dust pelletizing system and fortune ash system through analysis processes module analysis, and then make dust pelletizing system and fortune ash system move with more energy-conserving mode.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a step of a method for monitoring the material level of an ash hopper for an electrostatic dust collector in the practice of the present application;
fig. 2 is a schematic structural diagram of a level detection device in an embodiment of the present application.
Reference numerals
1. A motor; 2. a twisted plate; 3. and a rotation speed detection device.
Detailed Description
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Example (b):
the invention discloses a material level monitoring method of an ash bucket for an electrostatic dust removal device, which is applied with a material level detection device, wherein the material level detection device is arranged in the ash bucket, and the method comprises the following steps:
and a preparation step, wherein a system operation parameter comparison table is preset and used for determining operation parameters of the dust removal system and the ash conveying system according to the material level data in the ash hopper.
Step 1, acquiring material level data acquired by the material level detection device, and determining operation parameters of the dust removal system and the ash conveying system according to a preset system operation parameter comparison table.
And 2, driving the dust removal system and the ash conveying system to operate according to the determined operation parameters.
In step 1, the material level data may include a material level height or a material level rising rate, whether solid powder in the ash hopper reaches the ash discharge height or not may be determined according to the material level height, an increment rate of solid dust filtered into the ash hopper by the dust removal system under the condition is determined by analysis according to the material level rising rate, and in order to avoid inefficient operation of the dust removal system, an operation parameter of the dust removal system may be determined according to the increment rate of the solid dust determined by the analysis.
In some embodiments of the present application, a number of level monitoring devices are disclosed, the level detecting devices being any one of a mechanical level indicator, a capacitive level indicator, a permanent magnet level indicator, a radio frequency admittance level indicator, a tuning fork level indicator, a vibrating rod level indicator and a weighted level indicator.
In order to be able to determine whether the level monitoring device is malfunctioning, in some embodiments of the present application, the method is improved, the method further comprising:
A. and a material level switch is further arranged in the ash hopper and used for determining whether the solid dust reaches the height of the ash hopper.
B. If the material level switch detects that the solid dust reaches the height of the material level switch, the material level detection device detects that the material level data is compared with the height of the material level switch, and if the difference value between the material level data and the height of the material level switch is smaller than a preset value, the material level detection device is judged to normally operate.
In some embodiments of the present application, a specific structure of the material level detecting device is disclosed, which includes a motor 1, a auger plate 2, and a rotation speed detecting device 3.
The middle shaft of the auger plate is connected with the output shaft of the motor 1, and the rotating speed detection device 3 is connected with the middle shaft of the auger plate 2.
The method for detecting the height of the solid powder in the ash hopper by the material level device comprises the following steps:
A. and driving the motor 1 to drive the auger plate 2 to rotate according to rated power.
B. And acquiring auger plate rotation data detected by the rotation speed detection device 3, and judging the height of the solid powder in the ash hopper according to the auger plate rotation data.
In some embodiments of the present application, there is provided a method for enabling the level detecting device to determine the height of the solid powder, and the method for determining the height of the solid powder in the ash hopper according to the rotation data of the auger plate 2 comprises: and presetting a solid powder height comparison table, wherein the solid powder height comparison table is used for determining the height of the solid powder in the ash bucket according to the rotation data of the auger plate.
In some embodiments of the present application, specific contents of a powder height control table are disclosed, the contents of the powder height control table including:
1. and the height points determine the points where the height of the solid powder in the ash bucket reaches.
2. And the rotating speed values of the plurality of auger plates 2 correspond to the height point positions one by one.
In some embodiments of the present application, in order to enable a worker to timely and accurately know the operation states of the dust removal system and the ash conveying system, the method further includes: and drawing a dust removal and ash transportation dynamic picture, and determining the dynamic characteristics of the dust removal and ash transportation dynamic picture according to the material level data, the operating parameters of the dust removal system and the operating parameters of the ash transportation system.
The application discloses material level monitoring method of ash bucket for electrostatic precipitator device, through material level detection device acquires the material level data to according to predetermined operating parameter contrast table, confirm the operating parameter of dust pelletizing system and fortune ash system, and then make dust pelletizing system and fortune ash system move with more energy-conserving mode.
In order to further illustrate the technical scheme of the application, a specific application scene is combined, and the steps of the material level monitoring method for the ash bucket of the electrostatic dust removal device are disclosed.
In this specific application scenario, a material level monitoring device is also applied, and the device includes a motor 1, a screw plate 2 and a rotation speed detection device 3.
In summary, as shown in fig. 1, the method includes the steps of:
s1, driving the motor 1 to drive the auger plate 2 to rotate according to rated power.
And S2, acquiring auger plate rotation data detected by the rotation speed detection device 3, judging the height of the solid powder in the ash bucket according to the auger plate rotation data, and analyzing to obtain material level data.
And S3, acquiring the material level data acquired by the material level detection device, and determining the operation parameters of the dust removal system and the ash conveying system according to a preset system operation parameter comparison table.
And S4, driving the dust removal system and the ash conveying system to operate according to the determined operation parameters.
The auger plate 2 can drive the solid powder to tumble in the rotating process, so that the problem of hardening of the solid powder is reduced.
In the specific application scenario, in order to avoid system failure caused by the occurrence of a problem of the material level detection device, a method for judging the failure is disclosed, wherein a material level switch is arranged in the ash hopper and is used for determining whether solid dust reaches the height of the material level switch; if the material level switch detects that the solid dust reaches the height of the material level switch, the material level detection device detects that the material level data is compared with the height of the material level switch, and if the difference value between the material level data and the height of the material level switch is smaller than a preset value, the material level detection device is judged to normally operate.
In some embodiments of the present application, there is also disclosed a level monitoring system of an ash bucket for an electrostatic precipitator, wherein the apparatus comprises: a material level detection device and an analysis processing module.
The material level detection device is used for detecting the accumulation height of the solid powder in the ash hopper so as to obtain material level data.
And the analysis processing module is used for determining the operating parameters of the dust removal system and the ash conveying system.
The analysis processing module is internally provided with a system operation parameter comparison table, and the analysis processing module inquires the corresponding quantity of the material level data in the system parameter comparison table, determines the operation parameters of the dust removal system and the operation parameters of the ash conveying system, and drives the dust removal system and the ash conveying system to operate according to the determined operation parameters.
In order to enable the system to judge whether the material level detection device fails, in some embodiments of the present application, the system further includes a plurality of material level switches disposed in the ash hopper, and the material level switches are used for determining whether the solid dust reaches the height of the material level switches; if the analysis processing module acquires the trigger signal of the material level switch, the detection result of the material level detection device is compared with the self height of the material level switch, and if the difference value between the material level data and the self height of the material level switch is smaller than a preset value, the operation of the material level detection device is judged to be normal.
In some embodiments of the present application, a specific structure and an application method of a material level detection device applied to the system are further provided, the material level detection device includes a motor 1, a twisted plate 2 and a rotation speed detection device 3, a middle shaft of the twisted plate is connected with an output shaft of the motor 1, and the rotation speed detection device 3 is connected with the middle shaft of the twisted plate 2.
The method for detecting the height of the solid powder in the ash hopper by the material level device comprises the steps of driving the motor 1 to drive the auger plate 2 to rotate according to rated power, then obtaining auger plate rotation data detected by the rotating speed detection device 3, and judging the height of the solid powder in the ash hopper according to the auger plate rotation data.
The method for judging the height of the solid powder in the ash bucket according to the rotation data of the auger plate 2 comprises the step of presetting a solid powder height comparison table, wherein the solid powder height comparison table is used for determining the height of the solid powder in the ash bucket according to the rotation data of the auger plate.
Wherein, the content of the solid powder height comparison table comprises: the ash bucket comprises a plurality of height point positions and a plurality of auger plate 2 rotating speed values, wherein the height point positions determine the point positions where the heights of the solid powder in the ash bucket reach, and the auger plate 2 rotating speed values are in one-to-one correspondence with the height point positions.
The application also discloses a material level monitoring system of ash bucket for electrostatic precipitator device detects the height that solid powder is piled up in the ash bucket through material level detection device to obtain the material level data, confirm the operating parameter of dust pelletizing system and fortune ash system through analysis processes module analysis, and then make dust pelletizing system and fortune ash system move with more energy-conserving mode.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a material level monitoring method of ash bucket for electrostatic precipitator device, has material level detection device in the application, material level detection device sets up in the ash bucket, its characterized in that, the method includes:
presetting a system operation parameter comparison table, wherein the system operation parameter comparison table is used for determining operation parameters of a dust removal system and an ash conveying system according to the material level data in the ash hopper;
and acquiring the material level data acquired by the material level detection device, determining the operation parameters of the dust removal system and the ash conveying system according to a preset system operation parameter comparison table, and driving the dust removal system and the ash conveying system to operate according to the determined operation parameters.
2. The method as claimed in claim 1, wherein the level detecting means is any one of a mechanical level meter, a capacitive level meter, a permanent magnet level meter, a radio frequency admittance level meter, a tuning fork level meter, a vibrating rod level meter and a weight level meter.
3. The method for monitoring the material level of the ash hopper for the electrostatic dust collector as claimed in claim 1, wherein the method further comprises the following steps:
a material level switch is further arranged in the ash hopper and used for determining whether the solid dust reaches the height of the ash hopper;
if the material level switch detects that the solid dust reaches the height of the material level switch, the material level detection device detects that the material level data is compared with the height of the material level switch, and if the difference value between the material level data and the height of the material level switch is smaller than a preset value, the material level detection device is judged to normally operate.
4. The method for monitoring the material level of the ash hopper for the electrostatic dust collector as claimed in claim 1, wherein the material level detection device comprises a motor, an auger plate and a rotating speed detection device;
the middle shaft of the auger plate is connected with the output shaft of the motor, and the rotating speed detection device is connected with the middle shaft of the auger plate;
the method for detecting the height of the solid powder in the ash hopper by the material level device comprises the following steps:
the motor is driven to drive the auger plate to rotate according to rated power;
and acquiring auger plate rotation data detected by the rotation speed detection device, and judging the height of the solid powder in the ash hopper according to the auger plate rotation data.
5. The method for monitoring the material level of the ash bucket for the electrostatic dust collector as claimed in claim 4, wherein the method for judging the height of the solid powder in the ash bucket according to the rotation data of the auger plate comprises the following steps:
and presetting a solid powder height comparison table, wherein the solid powder height comparison table is used for determining the height of the solid powder in the ash bucket according to the rotation data of the auger plate.
6. The method as claimed in claim 5, wherein the content of the solid powder level comparison table comprises:
the height points determine the points where the height of the solid powder in the ash bucket reaches;
and the rotating speed values of the auger plates correspond to the height point positions one by one.
7. The method for monitoring the material level of the ash hopper for the electrostatic dust collector as claimed in claim 1, wherein the method further comprises the following steps:
and drawing a dust removal and ash transportation dynamic picture, and determining the dynamic characteristics of the dust removal and ash transportation dynamic picture according to the material level data, the operating parameters of the dust removal system and the operating parameters of the ash transportation system.
8. The utility model provides a material level monitoring system of ash bucket for electrostatic precipitator device which characterized in that, the device includes:
the material level detection device is used for detecting the accumulation height of the solid powder in the ash hopper so as to obtain material level data;
the analysis processing module is used for determining the operating parameters of the dust removal system and the ash conveying system;
the analysis processing module is internally provided with a system operation parameter comparison table, and the analysis processing module inquires the corresponding quantity of the material level data in the system parameter comparison table, determines the operation parameters of the dust removal system and the operation parameters of the ash conveying system, and drives the dust removal system and the ash conveying system to operate according to the determined operation parameters.
9. The system for monitoring the material level of the ash hopper for the electrostatic dust collector as claimed in claim 8, wherein the system further comprises a plurality of material level switches arranged in the ash hopper, and the material level switches are used for determining whether the solid dust reaches the height of the solid dust;
if the analysis processing module acquires the trigger signal of the material level switch, the detection result of the material level detection device is compared with the self height of the material level switch, and if the difference value between the material level data and the self height of the material level switch is smaller than a preset value, the operation of the material level detection device is judged to be normal.
10. The ash bucket material level monitoring system for the electrostatic dust collection device according to claim 8, wherein the material level detection device comprises a motor, a auger plate and a rotating speed detection device, a middle shaft of the auger plate is connected with an output shaft of the motor, and the rotating speed detection device is connected with a middle shaft of the auger plate;
the method for detecting the height of the solid powder in the ash hopper by the material level device comprises the steps of driving the motor to drive the auger plate to rotate according to rated power, then obtaining auger plate rotation data detected by the rotating speed detection device, and judging the height of the solid powder in the ash hopper according to the auger plate rotation data;
the method for judging the height of the solid powder in the ash bucket according to the rotation data of the auger plate comprises the steps of presetting a solid powder height comparison table, wherein the solid powder height comparison table is used for determining the height of the solid powder in the ash bucket according to the rotation data of the auger plate;
wherein, the content of the solid powder height comparison table comprises: the ash bucket comprises a plurality of height point positions and a plurality of auger plate rotating speed values, wherein the height point positions determine the point positions where the heights of the solid powder in the ash bucket reach, and the auger plate rotating speed values correspond to the height point positions one to one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210952581.3A CN115493671A (en) | 2022-08-09 | 2022-08-09 | Material level monitoring method and system of ash bucket for electrostatic dust removal device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210952581.3A CN115493671A (en) | 2022-08-09 | 2022-08-09 | Material level monitoring method and system of ash bucket for electrostatic dust removal device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116007712A (en) * | 2023-03-27 | 2023-04-25 | 河北省地质矿产勘查开发局第五地质大队(河北省海洋地质环境调查中心) | Hydrologic engineering geology water level monitoring devices |
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2022
- 2022-08-09 CN CN202210952581.3A patent/CN115493671A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116007712A (en) * | 2023-03-27 | 2023-04-25 | 河北省地质矿产勘查开发局第五地质大队(河北省海洋地质环境调查中心) | Hydrologic engineering geology water level monitoring devices |
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