CN213348341U - Low-temperature plasma deodorization device - Google Patents
Low-temperature plasma deodorization device Download PDFInfo
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- CN213348341U CN213348341U CN202022033801.1U CN202022033801U CN213348341U CN 213348341 U CN213348341 U CN 213348341U CN 202022033801 U CN202022033801 U CN 202022033801U CN 213348341 U CN213348341 U CN 213348341U
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Abstract
The utility model discloses a low temperature plasma deodorizing device, it relates to plasma deodorization equipment field, its main part is provided with casing and deodorization unit, the deodorization unit sets up in the casing, be provided with air inlet and gas outlet on the casing, wherein the gas outlet is located the casing upper end, make gaseous straight outflow through the gas outlet, can gas emission with higher speed, the deodorization unit is provided with low temperature plasma generator, low temperature plasma generator includes discharge electrode plate, saw-toothed discharge electrode plate is chooseed for use to this discharge electrode plate, discharge according to the pointed end and keep away from, near saw-toothed point discharges comparatively strongly, the energy that produces and obtain the high energy electron with higher speed is great, under the condition that does not improve the voltage, also can obtain high energy electron, improve the deodorization effect.
Description
Technical Field
The utility model relates to a plasma deodorization equipment field, in particular to low temperature plasma deodorizing device.
Background
Along with the development of economic society, the pollution to the environment is intensified, the odor waste gas discharged into the air is increased day by day, and the air pollution to the public environment caused by various toxic gases and particle inhalants contained in various odor waste gases is also increased day by day.
In the odor treatment in the environmental protection industry, the plasma method is an advanced air treatment technology, and has the advantages of low energy consumption, low operation cost and less maintenance workload. Plasma deodorization among the prior art is mostly for the polar plate logical high voltage, produces high-tension electric field, produces a large amount of positive and negative ions that have strong oxidizing property to eliminate the peculiar smell, the polar plate of this kind of technique on the market is glossy plate electrode, if want to produce more higher energy ions and improve the deodorization effect, only can realize through increasing voltage, the higher voltage the higher potential safety hazard that its exists just is big more, consequently need design one kind and need not to increase the deodorizing device that voltage can obtain high energy ion.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the present invention is to provide a low temperature plasma deodorization device, which solves the problem that the existing plasma deodorization device in the market can only acquire high-energy ions by adding higher voltage.
In order to realize the above purpose, the utility model discloses the technical scheme who adopts is: the utility model provides a low temperature plasma deodorizing device, its main part is provided with casing and deodorization unit, the deodorization unit sets up in the casing, is provided with air inlet and gas outlet on the casing, the gas outlet is located the casing upper end, the deodorization unit is provided with low temperature plasma generator, low temperature plasma generator includes discharge electrode plate, high-voltage insulating ceramic post and casing earthing terminal, high-voltage insulating ceramic post sets up inside the casing, discharge electrode plate chooses the cockscomb structure discharge electrode plate for use.
By adopting the technical scheme, the deodorization unit is arranged in the shell, the sawtooth-shaped discharge electrode plate is arranged in the low-temperature plasma generator in the deodorization unit, and according to the principle of point discharge, the discharge near the sawtooth tip is particularly strong, the power lines are dense, the energy of the generated and accelerated high-energy electrons is large, the deodorization effect is better, and higher voltage does not need to be applied to the discharge electrode plate; in addition, the gas outlet is arranged at the upper end of the shell, and the gas can be discharged in the vertical direction by utilizing the characteristic that the gas moves upwards, so that the gas discharge acceleration effect is achieved.
Preferably, the low temperature plasma generator is provided with a microwave excitation region.
By adopting the technical scheme, the air is charged by utilizing the principle of microwave discharge, and the gas is ionized.
Preferably, the high-voltage insulating ceramic column is connected to the side wall of the shell, the other side of the high-voltage insulating ceramic column is connected to the zigzag discharge electrode plate, and the zigzag discharge electrode plate is connected to a high-voltage power supply module through a connection circuit.
By adopting the technical scheme, the high-voltage power supply module provides power for the low-temperature plasma generator, the discharge electrode plate and the shell are separated by the high-voltage insulating ceramic column, the current is prevented from flowing to the shell, and the safety performance of the low-temperature plasma deodorization device is improved.
Preferably, the high-voltage power supply module is provided with a high-voltage pulse power supply with constant current during short circuit.
By adopting the technical scheme, the high-voltage pulse power supply with constant current during short circuit can ensure the long-term stable work of the core power supply in the high-voltage power supply module.
Preferably, an air pipe is connected to the air inlet.
Through adopting above-mentioned technical scheme, the setting of tuber pipe can have the guide effect to the flow of gas.
Preferably, a fan is arranged at the air outlet.
Through adopting above-mentioned technical scheme, the flow of gas can be accelerated to the fan.
Preferably, the fan is an axial flow fan.
Through adopting above-mentioned technical scheme, axial fan installs comparatively portably, and the noise is less.
Preferably, the housing is provided as a sound absorbing housing.
Through adopting above-mentioned technical scheme, the setting of sound absorption casing can further the noise reduction, makes it accord with the environmental protection requirement.
Compared with the prior art, the utility model has the advantages of: (1) the low-temperature plasma generator in the shell is used for generating a large amount of plasma to perform deodorization, the discharge electrode plate in the low-temperature plasma generator is set to be a saw-toothed discharge electrode plate, the discharge phenomenon near a saw-toothed point is stronger, the energy of generated and accelerated high-energy electrons is larger, and the deodorization effect is better; (2) the air outlet is arranged at the upper end of the shell, so that the air can be discharged in the straight direction, and the discharge of the air can be accelerated; (3) the high-voltage power supply module of the high-voltage pulse power supply with constant current during short circuit is selected, so that the power supply can work reliably for a long time.
Drawings
FIG. 1 is a schematic structural view of example 1;
FIG. 2 is a top sectional view of example 1;
FIG. 3 is a schematic structural diagram of the discharge electrode plate in example 1.
In the figure: 1-a shell; 2-low temperature plasma generator; 210-a serrated discharge plate; 3-an air inlet; 4-air outlet; 5-a high voltage power supply module; 6-air pipe; 7-an axial flow fan; 8-high voltage insulating ceramic posts.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Example 1
As shown in fig. 1 to 3, the main body of the low-temperature plasma deodorization device is provided with a housing 1, the housing 1 is provided with an air outlet 4 and an air inlet 3, the air outlet 4 is arranged on the upper end surface of the housing 1, and the gas can be discharged in the vertical direction by utilizing the characteristic that the gas moves upwards, so that the gas discharge can be accelerated.
An air pipe 6 is arranged at the air inlet 3, as shown in fig. 1, the air pipe 6 is connected to the housing 1 and is communicated with the air inlet 3, and the air pipe 6 can guide the flow direction of the air and has a guiding effect on the flow of the air.
And a fan is arranged at the gas outlet 4, and the addition of the fan can accelerate the circulation of gas in the shell 1.
Further, the fan is set to be an axial flow fan 7, and compared with a centrifugal fan, the axial flow fan 7 is convenient to mount and generates relatively small noise.
The casing 1 sets up to the sound absorption casing, and the sound absorption casing adopts sound absorbing material to make, and sound absorbing material can select hard fibreboard, plywood or other hard materials that have the sound absorption characteristic on the market for use, and the sound absorption casing can further reduce the produced noise of this low temperature plasma deodorizing device, makes it accord with the environmental protection requirement.
In this embodiment, the low temperature plasma deodorization device is further provided with a deodorization unit, the deodorization unit is placed in the housing 1, the gas with the odor enters the housing 1 from the gas inlet 3, after passing through the deodorization unit, the odor is eliminated, clean gas is obtained, and the clean gas flows to the gas outlet 4 and is scattered from the gas outlet 4.
The deodorization unit is provided with at least one low-temperature plasma generator 2, and in the embodiment, three low-temperature plasma generators 2 are arranged horizontally, and as shown in fig. 1 and 2, a plurality of low-temperature plasma generators 2 can release more low-temperature plasma.
Specifically, the low-temperature plasma generator 2 includes a discharge plate, the discharge plate is a saw-toothed discharge plate 210, as shown in fig. 1 and 3, according to the principle of point discharge, the discharge near the saw-toothed tip is particularly strong, the power lines are distributed in a beam shape, the power lines at the position are particularly dense, the potential gradient is also particularly large, and because the near the saw-toothed tip is a local strong electric field region, the energy of high-energy electrons generated and accelerated at the position is large, which can exceed 10eV, and the deodorization effect is better; compared with the prior art, under the same condition, the energy of high-energy electrons generated by the 'linear plate type' or 'linear cylinder type' discharge plate is less than or equal to 3 eV; according to analysis, when the energy of the high-energy electrons is more than or equal to 7eV, the xylene molecules can be broken; while xylene is the most difficult organic gas to decompose, molecular breakdown is a prerequisite for the removal of xylene from air. The efficiency of removing the dimethylbenzene by the purifying equipment manufactured by the sawtooth type plasma generator reaches 96 percent; in addition, because the local strong electric field area is arranged near the sawtooth tip, strong oxidants such as O3, OH and the like generated at the position are particularly rich, which is beneficial to removing the organic waste gas flowing through the position; secondly, the space charge generated near the sawtooth point is particularly rich, and the dust flowing through the sawtooth point, including Pm2.5 and Pm10, is charged and is gathered at the negative pole under the action of the electric field force, thereby improving the gas deodorization effect of the deodorization unit.
A large number of sharp-pointed saw teeth in the saw-toothed discharge plate 210 form a low-temperature plasma excitation region, and under the action of a high-voltage electric field, a high-concentration and high-energy plasma is generated by using a sharp-pointed discharge method. The discharge generates a large amount of energetic electrons to bombard pollutant molecules, so that the pollutant molecules are ionized, dissociated and excited, and then a series of physical and chemical reactions are initiated, including the oxidation of an odor source, so that macromolecular pollutants are converted into small molecular substances, or toxic substances are converted into non-toxic or low-toxic substances.
The low-temperature plasma generator 2 is also provided with a microwave excitation area, and the microwave excitation area utilizes the principle of microwave discharge to charge air entering from the air inlet, so that a particle structure chain is rapidly split and decomposed, gas is ionized, and preparation is made for the treatment process of low-temperature plasma deodorization.
The microwave excitation area is combined with the low-temperature plasma excitation area, so that the deodorization effect can be improved.
In this embodiment, the low temperature plasma generator 2 further includes a high voltage insulating ceramic column 8, the high voltage insulating ceramic column 8 is fixed on the inner side wall of the housing 1, and the other side of the high voltage insulating ceramic column 8 is connected to the saw-toothed discharging electrode plate 210, as shown in fig. 2, the high voltage insulating ceramic column 8 has no conductive function, so that the current on the saw-toothed discharging electrode plate 210 is prevented from being conducted toward the housing 1, the risk of electric leakage is reduced, and the safety performance of the low temperature plasma deodorization device is improved.
The high-voltage power supply module 5 is connected to the outer side of the shell 1, the high-voltage power supply module 5 and the zigzag discharge electrode plate 210 achieve transmission of electric signals through a connecting circuit, and electric quantity used for the low-temperature plasma generator 2 is provided.
Furthermore, the high-voltage power supply module 5 is set as a high-voltage pulse power supply, the high-voltage pulse power supply is a constant-current high-voltage pulse power supply during short circuit, and the core power supply of the low-temperature plasma deodorization device can stably and reliably work for a long time by selecting the high-voltage pulse power supply, so that the service life of the low-temperature plasma deodorization device is prolonged. The high-voltage pulse power supply belongs to the prior art and is not described in detail.
The low-temperature plasma generator 2 is further provided with a shell grounding end, and the shell grounding end is connected to the lower end of the shell 1 and is in contact with the ground, so that the safety performance of the low-temperature plasma deodorization device is further improved.
Although the preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a low temperature plasma deodorizing device, its characterized in that, its main part is provided with casing (1) and deodorization unit, the deodorization unit sets up in casing (1), is provided with air inlet (3) and gas outlet (4) on casing (1), gas outlet (4) are located casing (1) upper end, the deodorization unit is provided with low temperature plasma generator (2), low temperature plasma generator (2) are including discharge electrode, high-voltage insulation ceramic post (8) and casing (1) earthing terminal, high-voltage insulation ceramic post (8) set up inside casing (1), discharge electrode chooses cockscomb structure discharge electrode (210) for use.
2. A low temperature plasma deodorization apparatus as claimed in claim 1, wherein the low temperature plasma generator (2) is provided with a microwave excitation region.
3. The low-temperature plasma deodorization device according to claim 1, wherein the high-voltage insulating ceramic column (8) is connected to the side wall of the shell (1), the other side of the high-voltage insulating ceramic column (8) is connected to a serrated discharge electrode plate (210), and the serrated discharge electrode plate (210) is connected with the high-voltage power supply module (5) through a connection circuit.
4. A low temperature plasma deodorizing device according to claim 3, wherein said high voltage power supplying module (5) is provided with a high voltage pulse power source of constant current at the time of short circuit.
5. A low temperature plasma deodorizing device according to claim 1, wherein an air duct (6) is connected to said air inlet (3).
6. A low temperature plasma deodorizing device according to claim 1, wherein a fan is provided at said air outlet (4).
7. A low temperature plasma deodorising apparatus according to claim 6, wherein the fan is arranged as an axial fan (7).
8. A low temperature plasma deodorising apparatus as claimed in claim 1, wherein the housing (1) is provided as a sound absorbing housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022033801.1U CN213348341U (en) | 2020-09-16 | 2020-09-16 | Low-temperature plasma deodorization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022033801.1U CN213348341U (en) | 2020-09-16 | 2020-09-16 | Low-temperature plasma deodorization device |
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| Publication Number | Publication Date |
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| CN213348341U true CN213348341U (en) | 2021-06-04 |
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| CN202022033801.1U Active CN213348341U (en) | 2020-09-16 | 2020-09-16 | Low-temperature plasma deodorization device |
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| CN (1) | CN213348341U (en) |
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