A unit electric dust removal wide load self-adaptive optimization system

Abstract

The application relates to the technical field of electric dust removal systems, and discloses a wide-load self-adaptive optimization system for a unit electric dust removal system, which comprises an electric dust removal system, an automatic cruise mode on / off system, a wide-load automatic cruise control system and two connected electric dust removal devices, the electric dust removal system, the automatic cruise mode on / off system and the wide-load automatic cruise control system are mutually connected in communication, the wide-load automatic cruise control system controls the power of the two connected electric dust removal devices, the automatic cruise mode on / off system controls the start and stop of the wide-load automatic cruise control system, dirt determination modules are arranged in the two electric dust removal devices, and electric dust removal device cleaning machines are arranged outside the two electric dust removal devices. The wide-load self-adaptive optimization system for the unit electric dust removal system can greatly reduce the energy consumption of the equipment under the condition of ensuring the dust removal efficiency, and can be freely switched between automatic control and manual control.

Description

Technical Field

[0001] This invention relates to the field of electrostatic precipitator system technology, specifically to a wide-load adaptive optimization system for electrostatic precipitators in generator units. Background Technology

[0002] Boilers are crucial equipment in thermal power plants, and their load reflects the power output of the plant. Boiler combustion produces a large amount of dust, which is typically removed using electrostatic precipitators (ESPs). ESPs, including dry and wet ESPs, are the primary method for dust control. During operation, the dust from boiler combustion enters the ESP, which uses high-voltage static electricity generated by a power frequency or high-frequency DC power supply to collect the dust. The greater the boiler load, the more dust is emitted, placing a heavier burden on the ESP. ESPs are energy-intensive devices; therefore, optimizing the ESP operating system to reduce energy consumption without compromising dust removal efficiency has significant economic and social value.

[0003] Patent CN213435054U discloses an embedded electrostatic precipitator (ESP) operation optimization system, comprising an embedded optimization system, an ESP control device, and a boiler detection device. The embedded optimization system is communicatively connected to both the ESP control device and the boiler detection device. The ESP control device includes a dust emission detection device, a carbon monoxide concentration detection device, a high-voltage DC power supply control device, and a dust removal rapping control device. The embedded optimization system reads detection information from the ESP control system and the boiler detection system. By combining operational design indicators, historical operation records, the physical characteristics of the coal burned in the boiler, and real-time operation data of the ESP system, it dynamically controls the output power of the high-voltage DC power supply of the ESP through a closed-loop control system.

[0004] This technical solution still has shortcomings:

[0005] First, the technical solution only controls the output power of the high voltage DC power supply of a single electrostatic precipitator to reduce energy consumption. However, after a period of operation, the dust removal effect of a single electrostatic precipitator at the same output power will be greatly reduced. It is necessary to continuously increase the output power to ensure the dust removal effect, so the effect of reducing energy consumption is not particularly obvious.

[0006] Secondly, the entire system in this technical solution is fully automated. In some special use cases (such as the testing phase), it is not convenient for operators to freely choose whether the system equipment is automatically or manually controlled, which limits its use.

[0007] Third, in this technical solution, the electrostatic precipitator is used continuously, and after a period of use, a lot of dust will accumulate inside it, which will greatly affect the dust removal performance of the electrostatic precipitator, resulting in the need to use more power to handle the same amount of dust. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a wide-load adaptive optimization system for electrostatic precipitators, which significantly reduces equipment energy consumption while ensuring dust removal efficiency, and allows for free switching between automatic and manual control. This solves the problems of poor energy reduction effect and inability to freely switch between automatic and manual control in existing embedded electrostatic precipitator operation optimization systems.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a wide-load adaptive optimization system for electrostatic precipitators, comprising an electrostatic precipitator system, an automatic cruise mode on / off system, a wide-load automatic cruise control system, and two interconnected electrostatic precipitators. The electrostatic precipitator system, the automatic cruise mode on / off system, and the wide-load automatic cruise control system are all interconnected. The wide-load automatic cruise control system controls the power of the two interconnected electrostatic precipitators. The automatic cruise mode on / off system controls the start and stop of the wide-load automatic cruise control system. Each of the two electrostatic precipitators is equipped with a dirt detection module inside, and each of the two electrostatic precipitators is equipped with an electrostatic precipitator cleaning machine outside. Each of the two dirt detection modules is interconnected with the corresponding electrostatic precipitator cleaning machine.

[0010] Preferably, the electrostatic precipitator system includes an inlet dust value detection module and two outlet dust value detection modules;

[0011] The inlet dust value detection module specifically comprises: the inlet dust detection of the two electrostatic precipitators is completed under the control of the electrostatic precipitator system, and the dust value at the inlet of the two connected electrostatic precipitators is detected online;

[0012] The outlet dust value detection module specifically comprises: dust detection at the connection point of the two electrostatic precipitators is completed under the control of the electrostatic precipitator system, and the dust value at the connection point of the two connected electrostatic precipitators is detected online.

[0013] Preferably, the wide-load automatic cruise control system includes a deep optimization control module, a wide-load control unit, and an electrostatic precipitator high-frequency power supply control unit;

[0014] The electrostatic precipitator high-frequency power supply control unit specifically comprises: during the wide-load cruise of the unit, the wide-load control unit controls the load increase and decrease of the unit, and at the same time, the wide-load control unit communicates with the electrostatic precipitator high-frequency power supply control unit, and the electrostatic precipitator high-frequency power supply control unit controls the high-frequency power of the electrostatic precipitator.

[0015] Preferably, the automatic cruise mode switching system includes a control panel;

[0016] The control panel specifically comprises: the automatic cruise mode switching system disconnects the communication connection between the wide-load automatic cruise control system and the wide-load control unit, while the control panel establishes a communication connection with the wide-load control unit, and the control panel directly controls the wide-load control unit.

[0017] Preferably, the two interconnected electrostatic precipitators include an outlet solenoid valve and an emission control module;

[0018] The emission control module specifically includes: setting an upper limit warning value for emissions; and after the outlet dust value detection module completes its detection, when the detected value is lower than the set upper limit warning value for emissions, the emission control module is powered on and triggered.

[0019] Specifically, the solenoid valve at the discharge port is energized and opened when the emission control module is triggered, and is normally closed at other times when it is de-energized.

[0020] Preferably, it also includes a control system that uploads the data generated by the electrostatic precipitator and the automatic cruise mode switching system to the control system in real time.

[0021] Compared with the prior art, the present invention provides a wide-load adaptive optimization system for electrostatic precipitators in power plants, which has the following beneficial effects:

[0022] 1. The unit's wide-load adaptive optimization system for electrostatic precipitators uses inlet dust detection modules and outlet dust detection modules installed at the inlet and connection points of two connected electrostatic precipitators. This allows dust to flow back and forth between the two electrostatic precipitators until the dust meets the standards before being discharged. This can greatly reduce the load required by the electrostatic precipitators and maximize the effect of controlling the output current to reduce equipment energy consumption.

[0023] 2. The electrostatic precipitator wide-load adaptive optimization system of this unit disconnects the communication connection between the wide-load automatic cruise control system and the wide-load control unit through the automatic cruise mode switching system. At the same time, the control panel and the wide-load control unit establish a communication connection, and the control panel directly controls the wide-load control unit, thereby realizing the ability to freely switch between automatic control and manual control.

[0024] 3. The unit's wide-load adaptive optimization system for electrostatic precipitators has a dirt detection module installed inside each of the two electrostatic precipitators. When there is a lot of dirt inside the two electrostatic precipitators, it directly communicates with the external electrostatic precipitator cleaning machine to automatically clean the two electrostatic precipitators, ensuring the cleanliness of the inside of the electrostatic precipitators and preventing any impact on the dust removal efficiency of the electrostatic precipitators. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a wide-load adaptive optimization system for electrostatic precipitators proposed in this invention. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1 An adaptive optimization system for wide-load electrostatic precipitators (ESPs) is disclosed, comprising an ESP system, an automatic cruise mode on / off system, a wide-load automatic cruise control system, and two interconnected ESPs. The ESP system, the automatic cruise mode on / off system, and the wide-load automatic cruise control system are all interconnected. The wide-load automatic cruise control system controls the power of the two interconnected ESPs, and the automatic cruise mode on / off system controls the activation and deactivation of the wide-load automatic cruise control system. Each of the two ESPs is equipped with a dirt detection module, and each of the two ESPs is externally equipped with an ESP cleaning machine. Both dirt detection modules are communicatively connected to their respective ESP cleaning machines.

[0028] The electrostatic precipitator system includes an inlet dust level detection module and two outlet dust level detection modules;

[0029] The imported dust value detection module specifically includes: the dust detection of the inlet of two electrostatic precipitators is completed under the control of the electrostatic precipitator system, and the dust value at the inlet of the two connected electrostatic precipitators is detected online;

[0030] The dust value detection module at the outlet is specifically designed to detect dust at the connection point of two electrostatic precipitators under the control of the electrostatic precipitator system, and to detect the dust value at the connection point of the two connected electrostatic precipitators online.

[0031] The wide-load automatic cruise control system includes a deep optimization control module, a wide-load control unit, and an electrostatic precipitator high-frequency power supply control unit;

[0032] The high-frequency power supply control unit of the electrostatic precipitator is specifically designed to control the load increase and decrease of the unit during the wide-load cruise process. At the same time, the wide-load control unit communicates with the high-frequency power supply control unit of the electrostatic precipitator, which in turn controls the high-frequency power of the electrostatic precipitator.

[0033] The automatic cruise mode switching system includes a control panel;

[0034] The control panel, specifically, is designed to: disconnect the communication connection between the wide-load automatic cruise control system and the wide-load control unit when the automatic cruise mode is switched on / off; at the same time, establish a communication connection between the control panel and the wide-load control unit, allowing the control panel to directly control the wide-load control unit.

[0035] The two interconnected electrostatic precipitators include an exhaust solenoid valve and an exhaust control module;

[0036] The emission control module is specifically designed to: set an upper limit warning value for emissions; and after the outlet dust value detection module completes its detection, the emission control module is powered on and triggered when the detected value is lower than the set upper limit warning value for emissions.

[0037] The solenoid valve at the discharge port is specifically designed to be energized and opened when the emission control module is triggered, and otherwise remains de-energized and normally closed.

[0038] It also includes a control system that uploads data generated during the operation of the electrostatic precipitator and the automatic cruise mode switching system to the control system in real time.

[0039] In summary, the electrostatic precipitator (ESP) wide-load adaptive optimization system operates by having the inlet dust detection module monitor the dust levels at the inlets of the two connected ESPs online. This inlet dust detection module transmits the detected values ​​to the wide-load automatic cruise control system. During wide-load cruise, the wide-load control unit adjusts the unit load accordingly. Simultaneously, the wide-load control unit communicates with the ESP's high-frequency power control unit, which controls the ESP's high-frequency power supply. This allows for automated control of the two connected ESPs. Because the inlet connection of the two connected ESPs is equipped with an outlet dust detection module, dust flows back and forth between the two ESPs under the control of the ESP system. The system continuously monitors the dust levels at the connection point of the two connected ESPs online until the detected values ​​fall below the set emission upper limit warning value, at which point emission control is activated. When the module is powered on, the emission control module controls the solenoid valve at the emission port to open and discharge. The two electrostatic precipitators operate in a closed-loop cycle, which greatly reduces the load required by a single electrostatic precipitator and maximizes the effect of controlling the output current to reduce equipment energy consumption. At the same time, since both electrostatic precipitators are equipped with a dirt detection module, when there is a lot of dirt inside the two electrostatic precipitators, they can directly communicate with the external electrostatic precipitator cleaning machine to automatically clean the two electrostatic precipitators, ensuring the cleanliness of the inside of the electrostatic precipitators and preventing any impact on the dust removal efficiency. When manual control is required, the automatic cruise mode switching system disconnects the communication connection between the wide-load automatic cruise control system and the wide-load control unit, while the control panel establishes a communication connection with the wide-load control unit. The control panel directly controls the wide-load control unit, thus enabling free switching between automatic and manual control.

[0040] It should be noted that the term "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wide-load adaptive optimization system for electrostatic precipitators in generator units, characterized in that, The system includes an electrostatic precipitator system, an automatic cruise mode on / off system, a wide-load automatic cruise control system, and two interconnected electrostatic precipitators. The electrostatic precipitator system, the automatic cruise mode on / off system, and the wide-load automatic cruise control system are all interconnected. The wide-load automatic cruise control system controls the power of the two interconnected electrostatic precipitators. The automatic cruise mode on / off system controls the start and stop of the wide-load automatic cruise control system. Each of the two electrostatic precipitators is equipped with a dirt detection module inside, and each of the two electrostatic precipitators is equipped with an electrostatic precipitator cleaning machine outside. Each of the two dirt detection modules is interconnected with the corresponding electrostatic precipitator cleaning machine. The electrostatic precipitator system includes an inlet dust value detection module and two outlet dust value detection modules. Specifically, the inlet dust value detection module performs online detection of the dust value at the inlet of the two connected electrostatic precipitators under the control of the system. The outlet dust value detection module performs online detection of the dust value at the connection point between the two connected electrostatic precipitators under the control of the system. The wide-load automatic cruise control system includes a deep optimization control module, a wide-load control unit, and an electrostatic precipitator high-frequency power supply control unit. Specifically, the deep optimization control module optimizes the operation of the electrostatic precipitator system to ensure its safe operation. It incorporates load judgment and introduces PID control to further improve the high-frequency power supply's dust removal efficiency, thus enhancing control quality. The electrostatic precipitator high-frequency power supply control unit controls the unit's load increase and decrease during wide-load cruise. Simultaneously, the wide-load control unit communicates with the electrostatic precipitator high-frequency power supply control unit, which controls the high-frequency power supply power of the electrostatic precipitator. The automatic cruise mode switching system includes a control panel; specifically, the automatic cruise mode switching system disconnects the communication connection between the wide-load automatic cruise control system and the wide-load control unit, while the control panel establishes a communication connection with the wide-load control unit, and the control panel directly controls the wide-load control unit; The two interconnected electrostatic precipitators include an outlet solenoid valve and an emission control module. Specifically, the emission control module sets an upper emission warning value. After the outlet dust value detection module completes its detection, the emission control module is energized and triggered when the detected value is lower than the set upper emission warning value. Specifically, the outlet solenoid valve is energized and opened when the emission control module is triggered, and remains normally closed at other times.

2. The unit electrostatic precipitator wide-load adaptive optimization system according to claim 1, characterized in that, It also includes a control system that uploads data generated during the operation of the electrostatic precipitator and the automatic cruise mode switching system to the control system in real time.

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