CN115415219B - Flushing method and system of constant-pressure variable-frequency desulfurization demister - Google Patents
Flushing method and system of constant-pressure variable-frequency desulfurization demister Download PDFInfo
- Publication number
- CN115415219B CN115415219B CN202210952575.8A CN202210952575A CN115415219B CN 115415219 B CN115415219 B CN 115415219B CN 202210952575 A CN202210952575 A CN 202210952575A CN 115415219 B CN115415219 B CN 115415219B
- Authority
- CN
- China
- Prior art keywords
- frequency
- power supply
- vibration
- water pressure
- supply frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/18—Cleaning-out devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Physical Water Treatments (AREA)
Abstract
The application discloses a flushing method of a constant-pressure variable-frequency desulfurization demister, which comprises the following steps: a water pressure frequency conversion comparison table and a vibration characteristic frequency conversion comparison table are preset; acquiring water pressure data of a pipeline connected with water equipment, and determining the basic power supply frequency of the flushing water pump according to a preset water pressure variable frequency comparison table; acquiring vibration data acquired by the vibration sensor, and determining the additional power supply frequency of the flushing water pump according to a preset vibration characteristic frequency conversion comparison table; and determining the final power supply frequency of the flushing water pump according to the determined basic power supply frequency and the additional power supply frequency. The application also discloses a flushing system of the constant-pressure variable-frequency desulfurization demister, vibration data and water pressure data are acquired through the vibration device, the vibration sensor and the water pressure sensor, the analysis processing module analyzes and processes the acquired water pressure data and the acquired vibration data, and the constant-pressure variable-frequency control module controls the final power supply frequency of the flushing water pump.
Description
Technical Field
The application relates to the technical field of demister flushing, in particular to a flushing method and a flushing system of a constant-pressure variable-frequency desulfurization demister.
Background
In the running process of the thermal power plant, a large amount of flue gas is generated, and the flue gas contains harmful gases such as sulfur dioxide, so that the flue gas is often led into a sulfur removal mechanism in order to avoid the pollution of the harmful gases such as sulfur dioxide to the environment; the flue gas desulfurization FGD (Flue gas desulfurization) is a desulfurization mode mainly adopted by a thermal power plant, and a corresponding desulfurization system is generally arranged in a coal-fired unit, so that raw flue gas generated by burning coal in the power generation process is discharged to the outside through a series of treatments of the desulfurization system. The desulfurization system is usually provided with a booster fan for introducing the flue gas against the flue gas resistance of the FGD device and a chimney for discharging the flue gas to the outside after further treatment.
When the conventional defogging mechanism operates, fog bodies are easy to generate, sulfuric acid, sulfate, sulfur dioxide and the like are dissolved in the fog bodies, and if the fog bodies are not removed, the fog bodies are easy to pollute and corrode a fan, a heat exchanger and a flue, so that the fog bodies are removed by using a defogger. Because conventional defroster can adsorb on defroster blade when separating gas-liquid, the impurity in its liquid droplet, the thick liquid deposit scale deposit scheduling problem appears easily, and then causes the defogging ability of defroster to reduce, still can increase desulfurization mechanism's resistance to smoke exhaust, leads to smoke exhaust fan's consumption increase, in order to avoid this problem, is provided with the washing mechanism that is used for washing the defroster in the sulfur removal mechanism, washes away the impurity that will adsorb on defroster blade.
The demister is washed through the washing mechanism, so that the problem of slurry deposition scaling of the demister is avoided, but the conventional washing mechanism still has the following defects: 1. the washing mechanism can not wash the actual situation of the demister, because the slurry deposition scaling situations of the demisters of different layers are different, if the washing mechanism adopts uniform washing strength, the washing mechanism can cause overshooting of the demister, thereby causing flue gas to carry water, reducing the service life of the demister, and also causing incomplete washing of the demister; 2. the water system pipeline that the flushing mechanism communicates is more to different water pipeline are connected with different water equipment, so there are multiple pipeline characteristic curves, and the flushing water pump operation mode of flushing mechanism is the power frequency operation, can not realize that the constant voltage is controllable, excessively consumes the energy.
Disclosure of Invention
The application aims to provide a flushing method of a constant-pressure variable-frequency desulfurization demister, which solves the problems that a conventional demister flushing mechanism cannot flush aiming at the actual situation of the demister and cannot realize constant-pressure control to consume energy.
The application discloses a washing method of constant-pressure variable-frequency desulfurization demisters, wherein vibration devices and vibration sensors are arranged on demisters in different layers;
the method comprises the following steps:
a water pressure variable frequency comparison table and a vibration characteristic variable frequency comparison table are preset, the water pressure variable frequency comparison table is used for determining the basic power supply frequency of the flushing water pump according to water pressure data of a pipeline connected with water using equipment, and the vibration characteristic variable frequency comparison table is used for determining the additional power supply frequency of the flushing water pump according to vibration characteristics of demisters of different layers;
acquiring water pressure data of a pipeline connected with water equipment, and determining the basic power supply frequency of the flushing water pump according to a preset water pressure variable frequency comparison table;
acquiring vibration data acquired by the vibration sensor, and determining the additional power supply frequency of the flushing water pump according to a preset vibration characteristic frequency conversion comparison table;
and determining the final power supply frequency of the flushing water pump according to the determined basic power supply frequency and the additional power supply frequency.
In some embodiments of the present application, the method of acquiring the water pressure data is improved to make the water pressure data more accurate, the water pressure data being acquired by a water pressure sensor provided on a pipe to which the water using apparatus is connected.
In some embodiments of the present application, the method for determining the basic power supply frequency is improved, so that the determined basic power supply frequency is more accurate, electric energy is saved, when the basic power supply frequency is determined, the acquired water pressure data is compared with preset water pressure data in the water pressure variable frequency comparison table, and the basic power supply frequency is determined according to the power supply frequency corresponding to the water pressure data in the water pressure variable frequency comparison table.
In some embodiments of the present application, the vibration device and the vibration sensor are improved such that the vibration sensor is convenient to acquire vibration data of the mist eliminator, the vibration device is fixedly installed on the mist eliminator of different layers, and the vibration sensor acquires vibration data of the mist eliminator of different layers.
In some embodiments of the present application, the obtained vibration data of the demister is improved, so that the vibration data is more accurate and perfect, and is convenient to be compared with a preset vibration characteristic variable frequency comparison table, and the vibration data obtained by the vibration sensor includes:
the vibration frequency of the demister is used for determining the vibration frequency of the demister provided with the vibration device;
the amplitude of the demister is used for determining the vibration amplitude of the demister provided with the vibration device.
In some embodiments of the application, the final power frequency is modified to determine an actual power frequency to the rinse water pump, and the actual power frequency to the rinse water pump is controlled based on the determined final power frequency.
The application discloses a flushing method of a constant-pressure variable-frequency desulfurization demister, which comprises the steps of presetting a water pressure variable-frequency comparison table and a vibration characteristic variable-frequency comparison table; acquiring water pressure data of a pipeline connected with water equipment, and determining the basic power supply frequency of the flushing water pump according to a preset water pressure variable frequency comparison table; acquiring vibration data acquired by the vibration sensor, and determining the additional power supply frequency of the flushing water pump according to a preset vibration characteristic frequency conversion comparison table; and determining the final power supply frequency of the flushing water pump according to the determined basic power supply frequency and the additional power supply frequency. The power supply frequency of finally leading in the flushing water pump is determined according to the water pressure data and the vibration data, the flushing can be carried out according to the actual condition of the demister, the service life of the demister is prolonged, constant-pressure variable-frequency control is realized, and energy is saved.
A flushing system for a constant pressure variable frequency desulfurization mist eliminator, said system comprising:
the vibration device is fixedly arranged on demisters of different layers;
the vibration sensor is used for acquiring vibration data of the demisters in different layers;
the water pressure sensor is arranged on the connecting pipeline of the water consumption device and is used for acquiring water pressure data of the connecting pipeline of the water consumption device;
the analysis processing module is used for analyzing and processing the acquired water pressure data and vibration data;
the constant-voltage variable-frequency control module is used for controlling the power supply frequency of the flushing water pump;
before the analysis processing module analyzes and processes the acquired water pressure data and vibration data, a water pressure frequency conversion comparison table and a vibration characteristic frequency conversion comparison table are preset, the water pressure frequency conversion comparison table is used for determining the basic power supply frequency of a flushing water pump according to the water pressure data of a pipeline connected with water using equipment, and the vibration characteristic frequency conversion comparison table is used for determining the additional power supply frequency of the flushing water pump according to the vibration characteristics of demisters of different layers;
the analysis processing module acquires water pressure data of a pipeline connected with the water using equipment, and determines the basic power supply frequency of the flushing water pump according to a preset water pressure variable frequency comparison table; and acquiring vibration data acquired by the vibration sensor, and determining the additional power supply frequency of the flushing water pump according to a preset vibration characteristic variable frequency comparison table.
In some embodiments of the present application, the vibration data of the mist eliminator is modified to obtain a more accurate power supply frequency by comparing the vibration data with the vibration characteristic frequency conversion comparison table, wherein the vibration data comprises the vibration frequency of the mist eliminator and the amplitude of the mist eliminator.
In some embodiments of the present application, the method for determining a basic power supply frequency is improved, so that the determined basic power supply frequency is more accurate, when the basic power supply frequency is determined, the acquired water pressure data is compared with preset water pressure data in the water pressure variable frequency comparison table, and the basic power supply frequency is determined according to the power supply frequency corresponding to the water pressure data in the water pressure variable frequency comparison table.
In some embodiments of the present application, the constant voltage variable frequency control module is improved, so that the constant voltage variable frequency control can determine an actual power supply frequency to the flushing water pump, reduce energy consumption, and determine a final power supply frequency to the flushing water pump according to the determined basic power supply frequency and the additional power supply frequency;
and the constant-voltage variable-frequency control module is used for controlling the actual power supply frequency of the flushing water pump according to the determined final power supply frequency.
The application discloses a flushing system of a constant-voltage variable-frequency desulfurization demister, which is characterized in that vibration data of the demister and water pressure data of a connecting pipeline of water equipment in different layers are obtained through a vibration device, a vibration sensor and a water pressure sensor, an analysis processing module determines basic power supply frequency and additional power supply frequency according to a preset water pressure variable-frequency comparison table and a vibration characteristic variable-frequency comparison table, a final power supply frequency is determined, and a constant-voltage variable-frequency control module regulates and controls the actual power supply frequency of a flushing water pump according to the final power supply frequency so as to finally realize constant-voltage variable-frequency control of the flushing system of the desulfurization demister.
The technical scheme of the application is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a method step diagram of a flushing system for a constant pressure variable frequency desulfurization demister of the present application.
Detailed Description
The technical scheme of the application is further described below through the attached drawings and the embodiments.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, means, components, and/or combinations thereof, but do not exclude other elements or items. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely relational terms determined to facilitate description of the structural relationships of the various components or elements of the application, and are not meant to be limiting of the application. Terms such as "fixedly attached," "connected," "coupled," and the like are to be construed broadly and refer to either a fixed connection or an integral or removable connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the present application can be determined according to circumstances by a person skilled in the relevant art or the art, and is not to be construed as limiting the present application.
Examples
In the running process of the thermal power plant, a large amount of flue gas is generated, and the flue gas contains harmful gases such as sulfur dioxide, so that the flue gas is often led into a sulfur removal mechanism in order to avoid the pollution of the harmful gases such as sulfur dioxide to the environment; the flue gas desulfurization FGD (Flue gas desulfurization) is a desulfurization mode mainly adopted by a thermal power plant, and a corresponding desulfurization system is generally arranged in a coal-fired unit, so that raw flue gas generated by burning coal in the power generation process is discharged to the outside through a series of treatments of the desulfurization system. The desulfurization system is usually provided with a booster fan for introducing the flue gas against the flue gas resistance of the FGD device and a chimney for discharging the flue gas to the outside after further treatment.
When the conventional defogging mechanism operates, fog bodies are easy to generate, sulfuric acid, sulfate, sulfur dioxide and the like are dissolved in the fog bodies, and if the fog bodies are not removed, the fog bodies are easy to pollute and corrode a fan, a heat exchanger and a flue, so that the fog bodies are removed by using a defogger. Because conventional defroster can adsorb on defroster blade when separating gas-liquid, the impurity in its liquid droplet, the thick liquid deposit scale deposit scheduling problem appears easily, and then causes the defogging ability of defroster to reduce, still can increase desulfurization mechanism's resistance to smoke exhaust, leads to smoke exhaust fan's consumption increase, in order to avoid this problem, is provided with the washing mechanism that is used for washing the defroster in the sulfur removal mechanism, washes away the impurity that will adsorb on defroster blade.
The demister is washed through the washing mechanism, so that the problem of slurry deposition scaling of the demister is avoided, but the conventional washing mechanism still has the following defects: 1. the washing mechanism can not wash the actual situation of the demister, because the slurry deposition scaling situations of the demisters of different layers are different, if the washing mechanism adopts uniform washing strength, the washing mechanism can cause overshooting of the demister, thereby causing flue gas to carry water, reducing the service life of the demister, and also causing incomplete washing of the demister; 2. the water system pipeline that the flushing mechanism communicates is more to different water pipeline are connected with different water equipment, so there are multiple pipeline characteristic curves, and the flushing water pump operation mode of flushing mechanism is the power frequency operation, can not realize that the constant voltage is controllable, excessively consumes the energy.
Therefore, the application discloses a washing method of constant-pressure variable-frequency desulfurization demisters, which is characterized in that a vibration device and a vibration sensor are arranged on demisters in different layers, and the method comprises the following steps:
the water pressure variable frequency control table and the vibration characteristic variable frequency control table are preset, the water pressure variable frequency control table is used for determining the basic power supply frequency of the flushing water pump according to water pressure data of a pipeline connected with water equipment, and the vibration characteristic variable frequency control table is used for determining the additional power supply frequency of the flushing water pump according to vibration characteristics of demisters of different layers.
And acquiring water pressure data of a pipeline connected with the water using equipment, and determining the basic power supply frequency of the flushing water pump according to a preset water pressure variable frequency comparison table.
And acquiring vibration data acquired by the vibration sensor, and determining the additional power supply frequency of the flushing water pump according to a preset vibration characteristic variable frequency comparison table.
And determining the final power supply frequency of the flushing water pump according to the determined basic power supply frequency and the additional power supply frequency.
In some embodiments of the present application, in order to acquire water pressure data of a pipe to which the water using apparatus is connected, the water pressure data is acquired by a water pressure sensor provided on the pipe to which the water using apparatus is connected.
In some embodiments of the present application, in order to determine a more accurate basic power supply frequency, when determining the basic power supply frequency, the acquired water pressure data is compared with preset water pressure data in the water pressure variable frequency comparison table, and the basic power supply frequency is determined according to the power supply frequency corresponding to the water pressure data in the water pressure variable frequency comparison table.
In some embodiments of the present application, in order to obtain vibration data of the demister, the vibration device and the vibration sensor are improved so as to be conveniently compared with a preset vibration characteristic variable frequency comparison table, the vibration device is fixedly installed on the demister of the different layers, and the vibration sensor obtains vibration data of the demister of the different layers.
In some embodiments of the present application, in order to obtain more detailed vibration data, the content included in the vibration data is improved, and the vibration data obtained by the vibration sensor includes:
the vibration frequency of the mist eliminator is used for determining the vibration frequency of the mist eliminator provided with the vibration device.
The amplitude of the demister is used for determining the vibration amplitude of the demister provided with the vibration device.
The state of the demister is different, the vibration characteristics of the demister received by the vibration sensor are different, and the power supply frequency of the flushing water pump is adjusted by comparing the vibration characteristics of the demister with the vibration characteristic frequency conversion comparison table.
In some embodiments of the application, the actual power frequency to the rinse water pump is controlled based on the determined final power frequency.
The application discloses a flushing method of a constant-pressure variable-frequency desulfurization demister, which is characterized in that a water pressure variable-frequency comparison table and a vibration characteristic variable-frequency comparison table are preset; acquiring water pressure data of a pipeline connected with water equipment, and determining the basic power supply frequency of the flushing water pump according to a preset water pressure variable frequency comparison table; acquiring vibration data acquired by the vibration sensor, and determining the additional power supply frequency of the flushing water pump according to a preset vibration characteristic frequency conversion comparison table; and determining the final power supply frequency of the flushing water pump according to the determined basic power supply frequency and the additional power supply frequency. The power supply frequency of finally leading in the flushing water pump is determined according to the water pressure data and the vibration data, the flushing can be carried out according to the actual condition of the demister, the service life of the demister is prolonged, constant-pressure variable-frequency control is realized, and energy is saved.
In order to further explain the technical scheme of the application, the method steps of the flushing system of the constant-voltage variable-frequency desulfurization demister are disclosed, so that flushing can be performed according to the actual situation of the demister, constant-voltage variable-frequency control is realized, and the problem of energy consumption is solved.
As shown in fig. 1, the method steps include:
s1, a water pressure frequency conversion comparison table and a vibration characteristic frequency conversion comparison table are preset.
S2, acquiring water pressure data of a pipeline connected with the water using equipment, and determining the basic power supply frequency of the flushing water pump according to a preset water pressure variable frequency comparison table.
And S3, acquiring vibration data acquired by the vibration sensor, and determining the additional power supply frequency of the flushing water pump according to a preset vibration characteristic variable frequency comparison table.
And S4, determining the final power supply frequency of the flushing water pump according to the determined basic power supply frequency and the additional power supply frequency.
In the step S1, the hydraulic variable frequency reference table is used for determining a basic power supply frequency of the flushing water pump according to hydraulic data of a pipeline connected with the water using device, and the vibration characteristic variable frequency reference table is used for determining an additional power supply frequency of the flushing water pump according to vibration characteristics of the demisters of different layers.
In the step S2, when determining the basic power supply frequency, the acquired water pressure data is compared with the preset water pressure data in the water pressure variable frequency comparison table, and the basic power supply frequency is determined according to the power supply frequency corresponding to the water pressure data in the water pressure variable frequency comparison table.
In the step S3, the vibration data acquired by the vibration sensor includes a vibration frequency of the mist eliminator and an amplitude of the mist eliminator;
the states of the demisters are different, the vibration characteristics of the demisters received by the vibration sensor are different, and the additional power supply frequency of the flushing water pump is determined by comparing the vibration characteristics of the demisters with the vibration characteristic frequency conversion comparison table.
The application also discloses a flushing system of the constant-voltage variable-frequency desulfurization demister, which comprises a vibration device, a vibration sensor, a water pressure sensor, an analysis processing module and a constant-voltage variable-frequency control module.
And the vibration device is fixedly arranged on the demisters on different layers.
And the vibration sensor is used for acquiring vibration data of the demisters in different layers.
The water pressure sensor is arranged on the connecting pipeline of the water consumption device and used for acquiring water pressure data of the connecting pipeline of the water consumption device.
And the analysis processing module is used for analyzing and processing the acquired water pressure data and vibration data.
And the constant-voltage variable-frequency control module is used for controlling the power supply frequency of the flushing water pump.
Before the analysis processing module analyzes and processes the obtained water pressure data and vibration data, a water pressure frequency conversion comparison table and a vibration characteristic frequency conversion comparison table are preset, the water pressure frequency conversion comparison table is used for determining the basic power supply frequency of the flushing water pump according to the water pressure data of a pipeline connected with water using equipment, and the vibration characteristic frequency conversion comparison table is used for determining the additional power supply frequency of the flushing water pump according to the vibration characteristics of the demister of different layers.
The analysis processing module acquires water pressure data of a pipeline connected with the water using equipment, and determines the basic power supply frequency of the flushing water pump according to a preset water pressure variable frequency comparison table; and acquiring vibration data acquired by the vibration sensor, and determining the additional power supply frequency of the flushing water pump according to a preset vibration characteristic variable frequency comparison table.
The analysis processing module can adopt a programmable logic controller comprising an input unit, a memory ROM/RAM, a central processing unit CPU and an output unit, wherein the input unit receives the acquired water pressure data and vibration data, the memory is used for storing a preset water pressure frequency conversion comparison table and a preset vibration characteristic frequency conversion comparison table, the central processing unit is used for processing the received data of the input unit, determining the basic power supply frequency and the additional power supply frequency of the flushing water pump through logic operation, determining the final power supply frequency of the flushing water pump, outputting the final power supply frequency to the constant-voltage frequency conversion control module through the output unit, and controlling the power supply frequency of the flushing water pump.
In some embodiments of the application, the vibration data is modified to determine that the acquisition of the vibration data includes details, the vibration data including a vibration frequency of the mist eliminator and an amplitude of the mist eliminator.
In some embodiments of the present application, in order to determine a more accurate basic power supply frequency, when determining the basic power supply frequency, the acquired water pressure data is compared with preset water pressure data in the water pressure variable frequency comparison table, and the basic power supply frequency is determined according to the power supply frequency corresponding to the water pressure data in the water pressure variable frequency comparison table.
In some embodiments of the present application, in order to implement power supply control of the constant voltage variable frequency control module to the flushing water pump, a final power supply frequency to the flushing water pump is determined according to the determined basic power supply frequency and the additional power supply frequency; and the constant-voltage variable-frequency control module is used for controlling the actual power supply frequency of the flushing water pump according to the determined final power supply frequency.
The application discloses a flushing system of a constant-voltage variable-frequency desulfurization demister, which is characterized in that vibration data of the demister and water pressure data of a connecting pipeline of water equipment in different layers are obtained through a vibration device, a vibration sensor and a water pressure sensor, an analysis processing module determines basic power supply frequency and additional power supply frequency according to a preset water pressure variable-frequency comparison table and a vibration characteristic variable-frequency comparison table, and determines final power supply frequency, and a constant-voltage variable-frequency control module regulates and controls actual power supply frequency fed into a flushing water pump according to the final power supply frequency, so that constant-voltage variable-frequency control of the flushing system of the desulfurization demister is finally realized.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application and not for limiting it, and although the present application has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the application can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the application.
Claims (10)
1. A washing method of constant-pressure variable-frequency desulfurization demisters is characterized in that a vibration device and a vibration sensor are arranged on demisters in different layers;
the method comprises the following steps:
a water pressure variable frequency comparison table and a vibration characteristic variable frequency comparison table are preset, the water pressure variable frequency comparison table is used for determining the basic power supply frequency of the flushing water pump according to water pressure data of a pipeline connected with water using equipment, and the vibration characteristic variable frequency comparison table is used for determining the additional power supply frequency of the flushing water pump according to vibration characteristics of demisters of different layers;
acquiring water pressure data of a pipeline connected with water equipment, and determining the basic power supply frequency of the flushing water pump according to a preset water pressure variable frequency comparison table;
acquiring vibration data acquired by the vibration sensor, and determining the additional power supply frequency of the flushing water pump according to a preset vibration characteristic frequency conversion comparison table;
and determining the final power supply frequency of the flushing water pump according to the determined basic power supply frequency and the additional power supply frequency.
2. The method for flushing a constant-pressure variable-frequency desulfurization demister according to claim 1, wherein the water pressure data is acquired by a water pressure sensor provided on a pipe to which the water using apparatus is connected.
3. The method for flushing the constant-pressure variable-frequency desulfurization demister according to claim 2, wherein when a basic power supply frequency is determined, the acquired water pressure data is compared with preset water pressure data in the water pressure variable-frequency comparison table, and the basic power supply frequency is determined according to the power supply frequency corresponding to the water pressure data in the water pressure variable-frequency comparison table.
4. The method for flushing the constant-pressure variable-frequency desulfurization demister according to claim 1, wherein the vibration device is fixedly arranged on the demister of the different layers, and the vibration sensor acquires vibration data of the demister of the different layers.
5. The method for flushing the constant-pressure variable-frequency desulfurization demister according to claim 4, wherein the vibration data acquired by the vibration sensor comprises:
the vibration frequency of the demister is used for determining the vibration frequency of the demister provided with the vibration device;
the amplitude of the demister is used for determining the vibration amplitude of the demister provided with the vibration device.
6. The method for flushing a constant voltage variable frequency desulfurization mist eliminator as claimed in claim 1, characterized in that an actual power supply frequency to said flushing water pump is controlled in accordance with said determined final power supply frequency.
7. A flushing system for a constant pressure variable frequency desulphurisation demister, the system comprising:
the vibration device is fixedly arranged on demisters of different layers;
the vibration sensor is used for acquiring vibration data of the demisters in different layers;
the water pressure sensor is arranged on the connecting pipeline of the water consumption device and is used for acquiring water pressure data of the connecting pipeline of the water consumption device;
the analysis processing module is used for analyzing and processing the acquired water pressure data and vibration data;
the constant-voltage variable-frequency control module is used for controlling the power supply frequency of the flushing water pump;
before the analysis processing module analyzes and processes the acquired water pressure data and vibration data, a water pressure frequency conversion comparison table and a vibration characteristic frequency conversion comparison table are preset, the water pressure frequency conversion comparison table is used for determining the basic power supply frequency of a flushing water pump according to the water pressure data of a pipeline connected with water using equipment, and the vibration characteristic frequency conversion comparison table is used for determining the additional power supply frequency of the flushing water pump according to the vibration characteristics of demisters of different layers;
the analysis processing module acquires water pressure data of a pipeline connected with the water using equipment, and determines the basic power supply frequency of the flushing water pump according to a preset water pressure variable frequency comparison table; and acquiring vibration data acquired by the vibration sensor, and determining the additional power supply frequency of the flushing water pump according to a preset vibration characteristic variable frequency comparison table.
8. The constant pressure variable frequency desulfurization mist eliminator flush system of claim 7, wherein said vibration data includes mist eliminator vibration frequency and mist eliminator amplitude.
9. The system according to claim 7, wherein when determining the basic power supply frequency, the acquired water pressure data is compared with preset water pressure data in the water pressure variable frequency comparison table, and the basic power supply frequency is determined according to the power supply frequency corresponding to the water pressure data in the water pressure variable frequency comparison table.
10. The constant voltage variable frequency desulfurization mist eliminator flush system according to claim 7, wherein a final power supply frequency to said flush water pump is determined based on said determined base power supply frequency and said additional power supply frequency;
and the constant-voltage variable-frequency control module is used for controlling the actual power supply frequency of the flushing water pump according to the determined final power supply frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210952575.8A CN115415219B (en) | 2022-08-09 | 2022-08-09 | Flushing method and system of constant-pressure variable-frequency desulfurization demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210952575.8A CN115415219B (en) | 2022-08-09 | 2022-08-09 | Flushing method and system of constant-pressure variable-frequency desulfurization demister |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115415219A CN115415219A (en) | 2022-12-02 |
| CN115415219B true CN115415219B (en) | 2023-08-29 |
Family
ID=84196909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210952575.8A Active CN115415219B (en) | 2022-08-09 | 2022-08-09 | Flushing method and system of constant-pressure variable-frequency desulfurization demister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115415219B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001123962A (en) * | 1999-10-26 | 2001-05-08 | Matsushita Electric Ind Co Ltd | Estimation terminal pressure constant control device for pump |
| CN103624022A (en) * | 2013-11-21 | 2014-03-12 | 上海大学 | Demister washing technology for ethylene spent caustic flue gas desulfurization and demister washing device thereof |
| CN203950166U (en) * | 2014-07-01 | 2014-11-19 | 辽宁省岭南环保高新技术产业园发展有限公司 | Mist separator of desulfurization timing, variable, transformation self-stripping system |
| CN104153425A (en) * | 2014-08-21 | 2014-11-19 | 巢湖市金辉自控设备有限公司 | Constant-pressure water supply system |
| CN206519022U (en) * | 2017-03-01 | 2017-09-26 | 武汉立为工程技术有限公司 | A kind of improved mist eliminator flushing water system |
| CN209040206U (en) * | 2018-10-25 | 2019-06-28 | 佛山市铸美电气有限公司 | A kind of hydraulic pressure control system of invariable pressure |
| CN209174458U (en) * | 2018-10-22 | 2019-07-30 | 南京中电环保科技有限公司 | A kind of desulfurizer mist eliminator flushing control system |
| CN111997881A (en) * | 2020-08-13 | 2020-11-27 | 优众新能源（深圳）股份有限公司 | Intelligent variable-frequency constant-pressure control system for water supply |
| CN215997728U (en) * | 2021-05-12 | 2022-03-11 | 成都新一驱动技术有限责任公司 | Water pressure self-adaptation washing unit |
-
2022
- 2022-08-09 CN CN202210952575.8A patent/CN115415219B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001123962A (en) * | 1999-10-26 | 2001-05-08 | Matsushita Electric Ind Co Ltd | Estimation terminal pressure constant control device for pump |
| CN103624022A (en) * | 2013-11-21 | 2014-03-12 | 上海大学 | Demister washing technology for ethylene spent caustic flue gas desulfurization and demister washing device thereof |
| CN203950166U (en) * | 2014-07-01 | 2014-11-19 | 辽宁省岭南环保高新技术产业园发展有限公司 | Mist separator of desulfurization timing, variable, transformation self-stripping system |
| CN104153425A (en) * | 2014-08-21 | 2014-11-19 | 巢湖市金辉自控设备有限公司 | Constant-pressure water supply system |
| CN206519022U (en) * | 2017-03-01 | 2017-09-26 | 武汉立为工程技术有限公司 | A kind of improved mist eliminator flushing water system |
| CN209174458U (en) * | 2018-10-22 | 2019-07-30 | 南京中电环保科技有限公司 | A kind of desulfurizer mist eliminator flushing control system |
| CN209040206U (en) * | 2018-10-25 | 2019-06-28 | 佛山市铸美电气有限公司 | A kind of hydraulic pressure control system of invariable pressure |
| CN111997881A (en) * | 2020-08-13 | 2020-11-27 | 优众新能源（深圳）股份有限公司 | Intelligent variable-frequency constant-pressure control system for water supply |
| CN215997728U (en) * | 2021-05-12 | 2022-03-11 | 成都新一驱动技术有限责任公司 | Water pressure self-adaptation washing unit |
Non-Patent Citations (1)
| Title |
|---|
| 除雾器防堵新秀――高流速移动式冲洗系统;刘军峰;;科技传播(10);107-108 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115415219A (en) | 2022-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103912964A (en) | Intelligent detection-control system and method for air purifiers | |
| CN104722203A (en) | SCR denitration control system and SCR denitration control method of heating furnace flue gas | |
| CN1628912A (en) | Method and apparatus for monitoring system integrity in gas conditioning applications | |
| CN110756036B (en) | Thermal power plant flue gas wet desulfurization system with multi-parameter monitoring function | |
| CN113457402A (en) | Efficient composite slurry supply method for desulfurizing tower | |
| KR20080082639A (en) | Emission control system utilizing chlorine dioxide and hydrogen peroxide | |
| CN115415219B (en) | Flushing method and system of constant-pressure variable-frequency desulfurization demister | |
| CN116392938A (en) | Waste gas denitration reaction device | |
| CN110935312A (en) | Dynamic monitoring device and dynamic monitoring method for SCR flue gas denitration system | |
| CN116672879B (en) | Flue gas treatment system of glass kiln | |
| CN108730170A (en) | A kind of more motor Optimal Control Systems and its optimal control method | |
| CN219128842U (en) | Flue gas wet flue gas desulfurization adsorbent slurry concentration monitoring device | |
| CN202666769U (en) | Urea water production equipment for vehicle, ship or thermal power plant | |
| CN111450622B (en) | Demister flushing system capable of automatically adjusting water balance of desulfurizing tower and control method | |
| CN201921618U (en) | Exhausting and defogging device arranged on washing chamber | |
| CN212396137U (en) | Demister flushing system capable of automatically adjusting water balance of desulfurizing tower | |
| CN214829084U (en) | Sewage treatment plant based on PLC control | |
| CN112569772B (en) | Control method for foaming of front-end co-processing desulfurization slurry | |
| CN112229231A (en) | Kiln flue gas waste heat recovery system | |
| CN107991962B (en) | Monitoring method for desulfurization device of thermal power plant and monitoring system using same | |
| CN209962148U (en) | Waste incineration flue gas purification treatment control system | |
| CN111957190A (en) | Feeding control method and system for deacidification atomizer | |
| CN213515117U (en) | Kiln flue gas waste heat recovery system | |
| CN209828671U (en) | Tail gas treatment device for dilute nitric acid production | |
| CN209885493U (en) | High-efficient exhaust system of acid mist scrubbing tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |