High-density plasma deodorization device

Abstract

The utility model provides a high-density plasma deodorization device relating to the technical field of air purification, which comprises a filter, a plasma generator, a gas input device, a plasma reaction chamber and a gas output device, the filter is connected with the plasma generator, the plasma generator and the gas input device are respectively connected with the plasma reaction chamber, and the gas output device is connected with the plasma reaction chamber. The plasma reaction chamber is connected with a gas output device; the plasma generator comprises a power module, a high-frequency transformer, a discharge electrode and a light-transmitting electrode, the power module is electrically connected with the high-frequency transformer, and the high-frequency transformer is connected with the discharge electrode and the light-transmitting electrode. By optimizing the density and the reaction time of the plasma, the deodorization efficiency is improved, the modular design is adopted, maintenance and large-scale application are facilitated, the energy consumption is low, and the operation cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification, and particularly to a high-density plasma deodorization device. Background Art

[0002] With the development of economy and the progress of society, the public environmental protection awareness has been continuously strengthened, and people have higher and higher requirements for the quality of life.

[0003] The plasma deodorization technology is one of the main deodorization technologies in the current market. The main principles of this technology are corona discharge and dielectric barrier discharge. A single plasma deodorization process can meet the standard treatment requirements (odor concentration < 1000 (dimensionless)). If a combined process (such as a combination of two or more of plasma deodorization, biological deodorization, chemical scrubbing deodorization, photocatalytic deodorization, activated carbon adsorption deodorization, etc.) is adopted, it is very difficult to achieve the index requirement of odor concentration < 500 (dimensionless), or even if the index requirement is met, it will be penetrated soon. In practical applications, even if the odor is treated to the odor concentration index of ~500 (dimensionless), the exhaust gas still has an odor, which will still cause discomfort to the surrounding or downwind residents.

[0004] Moreover, the more units there are in the combined treatment process, the greater the investment will be, and the higher the energy consumption of the supporting fans, water pumps, etc. will be. Therefore, a deodorization process that cooperates with plasma to achieve the goal of no odor has become an urgent matter at present. Content of the Utility Model

[0005] Aiming at the defects in the prior art, the purpose of the utility model is to provide a high-density plasma deodorization device.

[0006] According to a high-density plasma deodorization device provided by the utility model, it includes: a filter, a plasma generator, a gas input device, a plasma reaction chamber and a gas output device. The filter is connected to the plasma generator, the plasma generator and the gas input device are respectively connected to the plasma reaction chamber, and the plasma reaction chamber is connected to the gas output device;

[0007] The plasma generator includes a power supply module, a high-frequency transformer, a discharge electrode and a light-transmitting electrode. The power supply module is electrically connected to the high-frequency transformer, and the high-frequency transformer is connected to the discharge electrode and the light-transmitting electrode.

[0008] Preferably, the discharge electrode and the light-transmitting electrode are installed inside the plasma reaction chamber.

[0009] Preferably, a plurality of discharge electrodes are placed in parallel.

[0010] Preferably, the discharge electrode is in a flat plate shape or a tubular shape.

[0011] Preferably, a plurality of flow guiding plates are arranged inside the plasma reaction chamber.

[0012] Preferably, the plasma generator is a high-density plasma generator, and the power of the plasma generator is set between 10 kW and 50 kW.

[0013] Preferably, the air flow rate at the inlet of the filter is between 0.5 m / s and 2 m / s.

[0014] Preferably, the temperature range of the plasma reaction chamber is between 20 °C and 80 °C.

[0015] Preferably, it further includes a sensor, a controller, and a display screen. The display screen is connected to the controller, and the controller is respectively connected to the sensor by signals. The sensor is connected to the plasma generator, the gas input device, the plasma reaction chamber, and the gas output device.

[0016] Preferably, a voltage U is applied between the transparent electrodes, and the voltage in the discharge space is:

[0017]

[0018] where ε1 is the dielectric constant of the non-metal electrode, ε2 is the dielectric constant of the gas in the discharge space, d1 is the thickness of the non-metal electrode, and d2 is the thickness of the discharge space.

[0019] Compared with the prior art, the present utility model has the following beneficial effects:

[0020] This application adopts a distributed electrode system, which can evenly distribute the plasma, improve the density and uniformity of the plasma; each reaction chamber and electrode system adopt a modular design, which is convenient for maintenance and expansion; combined with the use of sensors and controllers, based on real-time data, the system parameters are automatically adjusted, so as to achieve the effect of saving energy consumption and reducing operating costs. Description of the Drawings

[0021] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes, and advantages of the present utility model will become more obvious:

[0022] Figure 1 is the process flow chart of the present utility model;

[0023] Figure 2 is the discharge diagram of the transparent electrode in the present utility model.

[0024] The figure shows: filter 1, plasma generator 2, gas input device 3, plasma reaction chamber 4, gas output device 5. Detailed Embodiments

[0025] The present utility model will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present utility model, but do not limit the present utility model in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several changes and improvements can still be made. These all belong to the protection scope of the present utility model.

[0026] Example 1

[0027] A high-density plasma deodorization device provided by the present utility model, as Figure 1-2 shown, includes: a filter 1, a plasma generator 2, a gas input device 3, a plasma reaction chamber 4, and a gas output device 5. The filter 1 is connected to the plasma generator 2. The plasma generator 2 and the gas input device 3 are respectively connected to the plasma reaction chamber 4. The outlet of the plasma reaction chamber 4 is connected to the gas output device 5. The plasma reaction chamber 4 is a closed container, and is internally provided with a plurality of flow guiding plates to ensure a long gas flow path and sufficient contact, ensuring sufficient contact between the plasma and the gas to be treated, and maximizing the deodorization effect.

[0028] The plasma generator 2 adopts a high-density plasma generator, and the power of the plasma generator 2 is set between 10 kW and 50 kW. The plasma generator 2 includes a power supply module, a high-frequency transformer, a discharge electrode, and a light-transmitting electrode. The discharge electrode is in a flat plate shape or a tubular shape. Two discharge electrodes and two light-transmitting electrodes are sequentially and parallelly installed inside the plasma reaction chamber 4. The power supply module is electrically connected to the high-frequency transformer, and the high-frequency transformer is connected to the discharge electrode and the light-transmitting electrode through wires. By providing low-voltage direct current through the power supply module, and boosting the voltage through the high-frequency transformer, the low-voltage electricity is converted into high-frequency high-voltage electricity. The high-frequency high-voltage electricity generates an electric field between the discharge electrode and the light-transmitting electrode, and excites and generates high-density plasma.

[0029] As Figure 1 shown, if a voltage U is applied between the light-transmitting electrodes, the voltage in the discharge space is:

[0030]

[0031] where ε1 is the dielectric constant of the non-metallic electrode, ε2 is the dielectric constant of the gas in the discharge space, d1 is the thickness of the non-metallic electrode, and d2 is the thickness of the discharge space. Since ε2 << ε1, under reasonable design, the voltage applied to the light-transmitting non-metallic electrode is mainly concentrated in the discharge space. Under the action of an extremely high electric field, high-density blue light plasma with three-dimensional ultraviolet rays (the active substance concentration reaches 1013 (trillion) per cm3) is generated. Pollutants in the odor can react with these substances with higher energy, causing the pollutants to decompose in a very short time, and subsequent various reactions occur to achieve the purpose of degrading pollutants.

[0032] Working principle: After the air filters large particles through Filter 1, it enters the plasma generator. Under the action of a high-frequency high-voltage electric field, a high-density plasma is generated between the discharge electrode and the light-transmitting electrode in the plasma generator; the gas input device 3 guides the odor-containing gas into the plasma reaction chamber, and the odor molecules react with the high-density plasma and are decomposed into harmless small molecules or neutral molecules. Finally, the clean gas is discharged from the outlet through the gas output device 5.

[0033] More specifically, the discharge electrode is connected to the high-frequency high-voltage power supply through a wire, and the voltage U provided by the power supply module is transmitted to the two light-transmitting electrodes through the wire. When the voltage U is applied between the electrodes, an electric field will be formed between the electrodes, exciting gas molecules to generate plasma. The light-transmitting property ensures the uniform generation and distribution of plasma in the reaction chamber without being hindered by materials.

[0034] Under the action of the electric field between the light-transmitting electrodes, gas molecules in the air (such as oxygen and nitrogen) are excited to form plasma. Plasma is composed of high-energy electrons, ions, and neutral particles, and has strong oxidation and reduction capabilities, capable of decomposing odor molecules.

[0035] The plasma makes full contact with the odor molecules in the reaction chamber, undergoes a chemical reaction, and decomposes the odor into harmless small molecule substances such as water vapor and carbon dioxide. The light-transmitting electrode ensures the uniform generation and distribution of plasma, improving the reaction efficiency and effect.

[0036] Distributed electrode system: The adoption of a distributed electrode system can evenly distribute the plasma, improving the density and uniformity of the plasma. Each electrode module can be independently controlled and adjusted to achieve the best reaction conditions.

[0037] Modular design: Each reaction chamber and electrode system adopt a modular design, which is convenient for maintenance and expansion. The modular design includes: Standardized dimensions and interfaces: Ensure the compatibility and interchangeability between different modules. Quick connection and disassembly: Adopt quick connectors and convenient disassembly mechanisms for easy replacement and maintenance.

[0038] Example 2

[0039] This Embodiment 2 is completed on the basis of Embodiment 1, with the addition of an intelligent control device. Specifically:

[0040] The intelligent control device includes a sensor, a controller, and a display screen. The display screen is connected to the controller, and the controller is respectively signal-connected to the sensor. The sensor is connected to the plasma generator 2, the gas input device 3, the plasma reaction chamber 4, and the gas output device 5. The air flow rate in the gas input device 3 is controlled between 0.5 m / s and 2 m / s. The temperature of the plasma reaction chamber 4 is regulated between 20°C and 80°C.

[0041] The integrated intelligent control system monitors and adjusts the working parameters of each module (such as voltage, current, air flow rate, etc.) in real time to ensure that the system operates in the best state. The intelligent control system includes: a real-time monitoring sensor: installing sensors for temperature, humidity, gas concentration, etc., to obtain operation data in real time. An adaptive adjustment algorithm: based on the real-time data, automatically adjusts the system parameters to achieve the best operating state, thereby achieving the effect of saving energy consumption and reducing operating costs.

[0042] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0043] The specific embodiments of the present utility model have been described above. It should be understood that the present utility model is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present utility model. Without conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

Claims

1. A high-density plasma deodorization device, characterized in that, Comprising: A filter (1), a plasma generator (2), a gas input device (3), a plasma reaction chamber (4), and a gas output device (5). The filter (1) is connected to the plasma generator (2), the plasma generator (2) and the gas input device (3) are respectively connected to the plasma reaction chamber (4), and the plasma reaction chamber (4) is connected to the gas output device (5); The plasma generator (2) includes a power supply module, a high-frequency transformer, a discharge electrode, and a light-transmitting electrode. The power supply module is electrically connected to the high-frequency transformer, and the high-frequency transformer is connected to the discharge electrode and the light-transmitting electrode.

2. The high-density plasma deodorization device according to claim 1, characterized in that, The discharge electrode and the light-transmitting electrode are respectively installed inside the plasma reaction chamber (4).

3. The high-density plasma deodorization device according to claim 1, characterized in that, A plurality of the discharge electrodes are placed in parallel.

4. The high-density plasma deodorizing device according to claim 1, wherein The discharge electrode is in the shape of a flat plate or a tube.

5. The high-density plasma deodorization device according to claim 1, characterized in that, A plurality of flow guide plates are provided inside the plasma reaction chamber (4).

6. The high-density plasma deodorization device according to claim 1, characterized in that, The plasma generator (2) is a high-density plasma generator, and the power of the plasma generator (2) is set between 10 kW and 50 kW.

7. The high-density plasma deodorization device according to claim 1, wherein The air flow rate at the inlet of the filter (1) is 0.5 m / s to 2 m / s.

8. The high-density plasma deodorization device according to claim 1, characterized in that, The temperature range of the plasma reaction chamber (4) is 20 °C to 80 °C.

9. The high-density plasma deodorization device according to claim 1, characterized in that, It further includes a sensor, a controller, and a display screen. The display screen is connected to the controller, the controller is respectively signal-connected to the sensor, and the sensor is connected to the plasma generator (2), the gas input device (3), the plasma reaction chamber (4), and the gas output device (5).

10. The high-density plasma deodorization device according to any one of claims 1-9, characterized in that, When a voltage U is applied between the light-transmitting electrodes, the voltage in the discharge space is: Where ε1 is the dielectric constant of the non-metal electrode, ε2 is the dielectric constant of the gas in the discharge space, d1 is the thickness of the non-metal electrode, and d2 is the thickness of the discharge space.

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