CN-117646961-B - Plasma ventilation and purification device and method

CN117646961BCN 117646961 BCN117646961 BCN 117646961BCN-117646961-B

Abstract

The invention discloses a plasma ventilation purifying device and a plasma ventilation purifying method, and relates to the field of energy conservation and environmental protection. When wind passes through the plasma ventilation purification device, the wind pressure sensor collects wind pressure data and sends the wind pressure data to the centralized control module, the centralized control module outputs registered voltage, current and frequency working parameters to supply power to the plasma generator, the generated plasma density is indirectly detected by the ultraviolet sensor and the ozone sensor, the detection data are sent to the centralized control module and then automatically adjusted to output proper voltage, current and frequency values, the highest density and the minimum ozone amount of the constantly generated plasma under different environments are ensured, the cathode plate can collect particles and can be extracted for cleaning, a medium filter screen, a high filter screen, an ultraviolet generator and other facilities are not needed, the volume and the weight of the device are reduced, the ozone degradation device changes ozone into oxygen, the ozone amount is prevented from exceeding the standard, the air purification efficiency is improved, and the energy-saving and environment-friendly effects of no consumption, human-machine coexistence, sterilization, pollution degradation, automatic operation and the like are realized.

Inventors

ZHU SUSHENG
Zhu pengda
SHI YIZHAN

Assignees

华禺通风(北京)技术有限公司

Dates

Publication Date: 20260505
Application Date: 20231201

Claims (7)

1. A plasma ventilation and purification device comprises a shell, an air inlet, an air outlet, a coarse filter screen, a plasma generator, a sensor module, a centralized control module and an ozone degradation device; The air inlet and the air outlet are respectively arranged at two opposite sides of the outer part of the shell, the coarse filter screen is arranged at one side of the inner part of the shell close to the air inlet, the ozone degradation device is arranged at one side of the inner part of the shell close to the air outlet, the plasma generator, the sensor module and the centralized control module are positioned between the coarse filter screen and the ozone degradation device, the plasma generator is positioned at one side of the coarse filter screen, and the sensor module and the centralized control module are positioned at one side of the ozone degradation device; The plasma generator comprises a plurality of cathode plates which are arranged side by side and a row of anode wires which are arranged between every two adjacent cathode plates, each row of anode wires is formed by winding one anode wire in a snake shape on an insulating frame, the turning positions of the snake-shaped wound anode wires are fixed on the insulating frame, two ends of each anode wire are respectively communicated so as to lead the anode wires to be connected in parallel on a circuit, the cathode plates are communicated through metal guide posts, the distance between the two adjacent cathode plates is the same, and the sensor module comprises an ultraviolet sensor, an ozone sensor and a wind pressure sensor; The large holes and the small holes on two adjacent cathode plates are staggered, and the large hole on the previous cathode plate faces the small hole on the next cathode plate, and the small hole Kong Duizhao on the previous cathode plate is the large hole on the next cathode plate; the centralized control module indirectly detects the density of the generated plasma according to the intensity of ultraviolet rays and the ozone amount, and adjusts output working parameters in real time according to the density of the generated plasma, so that the density of the constantly generated plasma is highest and the ozone amount is least in different environments, wherein the working parameters comprise voltage, current and frequency.
2. The plasma ventilation purifying apparatus according to claim 1, wherein the ozone content of the air purified by the plasma ventilation purifying apparatus is less than 0.02mg/m 3 .
3. The plasma ventilation purification apparatus according to claim 1, wherein the plasma ventilation purification apparatus is installed in a ventilation duct, a central air conditioner or a fresh air system.
4. A plasma ventilation purifying method, characterized in that the plasma ventilation purifying device according to claim 1 comprises: when air with certain wind pressure is sent into the air inlet, larger particles in the air are filtered by the coarse filter screen, and the air is discharged from the air outlet through the plasma generator, the sensor module and the ozone degradation device in sequence; the ultraviolet intensity and the ozone amount of the plasma generator are detected by an ultraviolet sensor and an ozone sensor respectively and are sent to a centralized control module; The centralized control module indirectly detects the density of the generated plasma according to the intensity of ultraviolet rays and the ozone amount, and adjusts the output working parameters in real time according to the density of the generated plasma, so as to ensure that the density of the constantly generated plasma is the highest and the ozone amount is the least in different environments; the centralized control module supplies power to the plasma generator according to the working parameters, so that high-density plasma is generated between the multi-row anode wires and the cathode plates; The plasma performs disinfection and sterilization and pollutant decomposition on the air flowing through, meanwhile, the cathode plate adsorbs the particles with the size in the air, the ozone degradation device degrades the ozone generated along with the air into oxygen, and pure and healthy air is discharged from the air outlet.
5. The plasma ventilation purification method according to claim 4, wherein the factory calibration method of the plasma ventilation purification device comprises: Configuring the number of cathode plates and anode wires in the plasma generator according to the flow of the required purified air; placing the prepared number of plasma generators in a constant temperature and humidity experiment box, injecting air with different PM2.5 contents into the experiment box, and measuring working parameters and corresponding ultraviolet intensity and ozone amount data when the air outlet has the optimal purifying effect; Taking the plasma generator out of the experiment box, and obtaining a plasma density value by using a plasma density detector; corresponding working parameters, ultraviolet intensity, ozone amount data and plasma density values are calibrated and written into a CPU of the centralized control module.
6. The plasma ventilation cleaning method as set forth in claim 4, further comprising: and when the centralized control module detects that the plasma density or the ozone amount deviates from the factory calibration value range, an audible and visual alarm prompt is sent out.
7. The plasma ventilation cleaning method as set forth in claim 4, further comprising: When the wind pressure sensor senses that wind passes, the centralized control module synchronously starts up and operates, and when the wind pressure sensor does not sense wind pressure, the centralized control module synchronously shuts down.

Description

Plasma ventilation and purification device and method Technical Field The invention relates to the technical field of energy conservation and environmental protection, in particular to a plasma ventilation purifying device and a plasma ventilation purifying method. Background With the development of industry, environmental pollution is gradually worsened, air quality is continuously reduced, and harmful gases, tiny particles and pathogenic microorganisms in the air can cause diseases in severe cases, so that the efficient sterilization of the air is particularly important in the places where people flow and are dense. The existing low-temperature plasma generating device and method in the market at present cannot ensure all-weather, high-density and pure plasma generation, and have the problems of poor air purification efficiency, exceeding ozone amount, large volume and weight, high energy consumption and the like. Disclosure of Invention Aiming at the problems in the background technology, the invention provides a plasma ventilation purifying device and a method, which can generate pure high-density plasma all weather, reduce the volume weight and the ozone amount of the device and improve the air purifying efficiency. In order to achieve the above object, the present invention provides the following solutions: In one aspect, the invention provides a plasma ventilation and purification device, which comprises a shell, an air inlet, an air outlet, a coarse screen, a plasma generator, a sensor module, a centralized control module and an ozone degradation device; The air inlet and the air outlet are respectively arranged at two opposite sides of the outer part of the shell, the coarse filter screen is arranged at one side of the inner part of the shell close to the air inlet, the ozone degradation device is arranged at one side of the inner part of the shell close to the air outlet, the plasma generator, the sensor module and the centralized control module are positioned between the coarse filter screen and the ozone degradation device, the plasma generator is positioned at one side of the coarse filter screen, and the sensor module and the centralized control module are positioned at one side of the ozone degradation device; the plasma generator comprises a plurality of cathode plates which are arranged side by side and a row of anode wires which are arranged between every two adjacent cathode plates, each row of anode wires is formed by winding one anode wire in a snake shape on an insulating frame, the turning positions of the snake-shaped wound anode wires are fixed on the insulating frame, two ends of each anode wire are respectively communicated so that a plurality of anode wires are connected in parallel on a circuit, the cathode plates are communicated through metal guide posts, the distance between the two adjacent cathode plates is the same, and the sensor module comprises an ultraviolet sensor, an ozone sensor and an air pressure sensor. Alternatively, the big holes and the small holes are distributed on the cathode plate, and the big holes and the small holes on the two adjacent cathode plates are distributed in a dislocation way. Optionally, the ozone content of the air purified and output by the plasma ventilation purifying device is less than 0.02mg/m 3. Optionally, the plasma ventilation purification device is installed in a ventilation pipeline, a central air conditioner or a fresh air system. On the other hand, the invention also provides a plasma ventilation purification method based on the plasma ventilation purification device, which comprises the following steps: when air with certain wind pressure is sent into the air inlet, larger particles in the air are filtered by the coarse filter screen, and the air is discharged from the air outlet through the plasma generator, the sensor module and the ozone degradation device in sequence; the ultraviolet intensity and the ozone amount of the plasma generator are detected by an ultraviolet sensor and an ozone sensor respectively and are sent to a centralized control module; The centralized control module indirectly detects the density of the generated plasma according to the intensity of ultraviolet rays and the ozone amount, and adjusts the output working parameters in real time according to the density of the generated plasma, so as to ensure that the density of the constantly generated plasma is the highest and the ozone amount is the least in different environments; the centralized control module supplies power to the plasma generator according to the working parameters, so that high-density plasma is generated between the multi-row anode wires and the cathode plates; The plasma performs disinfection and sterilization and pollutant decomposition on the air flowing through, meanwhile, the cathode plate adsorbs the particles with the size in the air, the ozone degradation device degrades the ozone generated along with the air into oxygen, and