CN110017522B

CN110017522B - Exhaust gas system is got rid of to lampblack absorber plasma that discharges a little

Info

Publication number: CN110017522B
Application number: CN201910406567.1A
Authority: CN
Inventors: 李平; 刘秀萍; 李宁宁; 宫心
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2020-11-03
Anticipated expiration: 2039-05-15
Also published as: CN110017522A

Abstract

The invention relates to the field of range hoods and discloses a micro-discharge plasma waste gas removing system for range hoods, which comprises a case, an exhaust chamber, an external port and an air inlet end, wherein the inner side of the case is provided with a ventilation chamber in a penetrating manner, the case is fixedly paved with medium blocking plates with the same height along two sides of the outer surface of the inner side, the outer surface of the inner side of each medium blocking plate is provided with a longitudinal polar plate along the vertical direction, the outer surface of the inner side of each medium blocking plate is fixedly provided with a transverse polar plate close to the lower end of the longitudinal polar plate, the outer surface of the case is fixedly provided with a plasma power supply device, and the outer surface of the inner side of. According to the system for removing the waste gas from the micro-discharge plasma of the range hood, the flue gas is ionized by using the high-voltage electric field, and the charged dust is separated from the air flow under the action of the electric field, so that the purpose of purifying the waste gas of the range hood is achieved, and the system has the advantages of purifying the air, reducing the air pollution, saving energy and reducing emission.

Description

Exhaust gas system is got rid of to lampblack absorber plasma that discharges a little

Technical Field

The invention relates to the field of range hoods, in particular to a system for removing waste gas by micro-discharge plasma of a range hood.

Background

In recent years, haze which takes inhalable fine particles (PM1.0, PM2.5 and PM10), Volatile Organic Compounds (VOCs), moisture and harmful microorganisms as main components is a serious environmental problem which is continuously troubled and seriously affects the health of people, oil smoke is generated due to high-temperature heating of food oil and food, oil smoke condensate in a high-temperature state has strong carcinogenic and mutation-causing hazards, as most of restaurants and restaurants are located in downtown areas and residential areas, the oil smoke emission of the restaurants and restaurants has serious influence on surrounding residents and the environment, and the oil smoke pollution of catering industry disturbs people and becomes one of the hot problems of environmental protection complaints of urban residents.

The micro discharge plasma is a special form of non-equilibrium plasma, and means that the electron energy reaches 1-20eV in the plasma formation process, while other particles with larger mass have lower temperature and are close to the room temperature state, the energy distribution among the particles in the system is far from equilibrium, and the micro discharge plasma is rich in a large amount of active particles such as free radicals, atomic oxygen and high-energy electrons, and discharge companion substances such as ozone, ultraviolet rays and the like.

Most of the existing range hoods mostly adopt a fabric filtering or wet processing method for waste gas treatment, wherein the fabric filtering method has large resistance and large occupied area, and in addition, filter materials are required to be frequently replaced, so that the energy consumption is large; the wet treatment method has the problem of secondary pollution of oil sewage, and therefore a micro-discharge plasma waste gas removing system of a range hood is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a micro-discharge plasma waste gas removing system for a range hood, which has the advantages of purifying air, reducing air pollution and saving energy and reducing emission, and solves the problems of frequent filter material replacement, large energy consumption and secondary pollution of oil sewage generation of the traditional oil smoke waste gas removing system.

(II) technical scheme

In order to achieve the purposes of purifying air, reducing air pollution, saving energy and reducing emission, the invention provides the following technical scheme: the utility model provides a waste gas system is got rid of to lampblack absorber micro discharge plasma, includes quick-witted case, exhaust chamber, external tapping and air inlet end, the inboard of machine case runs through and is provided with the plenum chamber, the medium barrier plate of equal height has been laid along the both sides of inboard surface are fixed to the machine case, the inboard surface of medium barrier plate is provided with vertical polar plate along vertical direction, the inboard surface of medium barrier plate is close to the fixed horizontal polar plate that is provided with of lower extreme department of vertical polar plate, the surface mounting of machine case is provided with plasma power supply unit, the inboard surface of machine case is close to lower extreme department and is provided with the smoke and dust sensor.

Preferably, the fixed air inlet end that is provided with of lower extreme of machine case, the upper end surface of air inlet end is close to the fixed curved sunshade that is provided with of edge, the front end surface of air inlet end is provided with control panel, control panel's surface is provided with the display screen, one side that control panel's surface is close to the display screen is provided with control button, control button's quantity is a plurality of groups, control button is the array and arranges, the port of control button and display screen respectively with control panel electric connection, control panel's input port and the output port electric connection of machine case.

Preferably, the lower extreme surface of air inlet end runs through and is provided with the air intake, the upper end of air intake is opened and is linked together with the plenum, the lower extreme of air intake is opened and is communicated with in the outside, the place ahead that the lower extreme surface of air inlet end is close to the air intake is provided with the LED lamp, the input port of LED lamp and control panel's output port electric connection.

Preferably, the rear end of the external interface is opened, the inner side of the external interface is communicated with the inner side of the air exhaust chamber, the inner side of the air exhaust chamber is communicated with the inner side of the ventilation chamber, the front end of the external interface is fixedly connected with the outer surface of the rear end of the air exhaust chamber, and the lower end of the air exhaust chamber is fixedly connected with the upper end of the case in a smooth mode.

Preferably, vertical polar plate vertically installs in the upper end surface of horizontal polar plate, the edge of vertical polar plate and horizontal polar plate respectively with the medium stop plate between the inboard surface fixed connection, the surface of vertical polar plate is provided with the first through-hole that a plurality of groups array were arranged, and first through-hole runs through in the surface of vertical polar plate, the upper end of vertical polar plate is not higher than the upper end of medium stop plate, the surface of horizontal polar plate is the camber, the surface of horizontal polar plate is provided with the second through-hole that a plurality of groups were array and arrange, and the second through-hole runs through in the surface of horizontal polar plate.

Preferably, the plasma power supply device comprises an EHC high-frequency power supply fixedly mounted on the outer surface of the chassis, a connection wire and a grounding wire, an output port of the EHC high-frequency power supply is electrically connected with input ports of the transverse polar plate and the longitudinal polar plate respectively through the connection wire, one end of the grounding wire is connected to the outer surface of the chassis, and the chassis is made of metal.

Preferably, the smoke sensor comprises an LED light emitting module, a light refractive index calculating module, a smoke content calculating module and a voltage adjusting module, wherein a signal output port of the light refractive index calculating module is connected to a signal input port of the smoke content calculating module, a signal output port of the smoke content calculating module is connected to a signal output port of the voltage adjusting module, and the smoke sensor is fixedly mounted on the outer surface of the inner side of the case.

Preferably, the input port of the smoke sensor is electrically connected with the output port of the control panel, the signal port of the EHC high-frequency power supply and the signal port of the control panel are connected with the signal port of the control panel, the inner side of the exhaust chamber is fixedly provided with a fan exhausting air towards the direction of the outer interface, the input port of the fan is electrically connected with the output port of the voltage adjusting module, and the input port of the voltage adjusting module is electrically connected with the output port of the control panel.

(III) advantageous effects

Compared with the prior art, the invention provides a system for removing waste gas by micro-discharge plasma of a range hood, which has the following beneficial effects:

1. the smoke exhaust removing system utilizing the high-voltage electric field to ionize smoke, and dust charges in air flow are separated from air flow under the action of the electric field, so that the aim of purifying smoke exhaust of an oil smoke machine is achieved, through the action of the EHC high-frequency power supply, when working voltage reaches 80kV, and output current reaches 2.4A, micro discharge can be achieved on a longitudinal polar plate and a transverse polar plate, the power factor is larger than 0.95, phase loss is avoided, no power grid pollution exists, the performance of a smoke exhaust removing electric field can be better improved, the average value and the peak value of output voltage are improved, the fact that the micro discharge plasma runs efficiently in a full load mode on the longitudinal polar plate and the transverse polar plate is guaranteed, oil particles, dust and the like in passing oil smoke are adsorbed, the effect of purifying air is achieved, and pollution to air is reduced.

2. The exhaust gas removing system for the micro-discharge plasma of the range hood comprises an LED light emitting module, a light refractive index calculating module, a voltage adjusting module, a light refractive index calculating module, a smoke content calculating module and a power adjusting module.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a schematic view of a longitudinal plate and a transverse plate of the present invention;

fig. 4 is a working principle diagram of the present invention.

In the figure: 1. a chassis; 2. an exhaust chamber; 3. an external interface; 4. a ventilation chamber; 5. a fan; 6. an air inlet end; 7. a shutter; 8. a control panel; 9. a display screen; 10. a control button; 11. an LED lamp; 12. an air inlet; 13. longitudinal pole plates; 14. a first through hole; 15. a transverse polar plate; 16. a second through hole; 17. a dielectric barrier sheet; 18. a plasma power supply; 181. an EHC high frequency power supply; 182. connecting a wiring; 183. a grounding wire; 19. a smoke sensor; 191. an LED light emitting module; 192. a light refractive index calculation module; 193. a smoke content calculation module; 194. and a voltage adjusting module.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a micro-discharge plasma waste gas removing system for a range hood, comprising a case 1, an exhaust chamber 2, an external port 3 and an air inlet end 6, wherein a ventilation chamber 4 is arranged inside the case 1 in a penetrating manner, medium blocking plates 17 with the same height are fixedly laid on both sides of the outer surface of the inner side of the case 1, a longitudinal polar plate 13 is arranged on the outer surface of the inner side of each medium blocking plate 17 along the vertical direction, a transverse polar plate 15 is fixedly arranged on the outer surface of the inner side of each medium blocking plate 17 close to the lower end of the corresponding longitudinal polar plate 13, a plasma power supply device 18 is fixedly arranged on the outer surface of the case 1, and a smoke sensor 19 is arranged on the.

An air inlet end 6 is fixedly arranged at the lower end of the case 1 to ensure that oil smoke gas can flow in, an arc-shaped shielding plate 7 is fixedly arranged on the outer surface of the upper end of the air inlet end 6 close to the edge to prevent the smoke from scattering, a control panel 8 is arranged on the outer surface of the front end of the air inlet end 6, a display screen 9 is arranged on the outer surface of the control panel 8, control buttons 10 are arranged on one side of the outer surface of the control panel 8 close to the display screen 9, the number of the control buttons 10 is a plurality of groups, the control buttons 10 are arranged in an array mode, ports of the control buttons 10 and the display screen 9 are respectively electrically connected with the control panel 8, an input port of the control panel 8 is electrically connected with an output port of the case 1; an air inlet 12 penetrates through the outer surface of the lower end of the air inlet end 6 to ensure that smoke flows into the ventilation chamber 4, the upper end of the air inlet 12 is open and communicated with the ventilation chamber 4, the lower end of the air inlet 12 is open and communicated with the outside, an LED lamp 11 is arranged on the outer surface of the lower end of the air inlet end 6 close to the front of the air inlet 12, the LED lamp 11 provides a lighting effect, an input port of the LED lamp 11 is electrically connected with an output port of the control panel 8, and the type of the LED lamp 11 is RZD 60-1; in order to ensure that the purified flue gas can be discharged, the rear end of the external interface 3 is open, meanwhile, the inner side of the external interface 3 is communicated with the inner side of the exhaust chamber 2, the inner side of the exhaust chamber 2 is communicated with the inner side of the ventilation chamber 4, the front end of the external interface 3 is fixedly connected with the outer surface of the rear end of the exhaust chamber 2, the stability of the external interface 3 is ensured, and the lower end of the exhaust chamber 2 is smoothly and fixedly connected with the upper end of the case 1; the longitudinal polar plate 13 is vertically arranged on the outer surface of the upper end of the transverse polar plate 15, the expanded area is large, particles can be adsorbed to a large degree, the edges of the longitudinal polar plate 13 and the transverse polar plate 15 are fixedly connected with the inner side outer surface of the medium barrier plate 17 respectively, the outer surface of the longitudinal polar plate 13 is provided with a plurality of groups of first through holes 14 which are arranged in an array mode, air circulation is ensured, the first through holes 14 penetrate through the outer surface of the longitudinal polar plate 13, the upper end of the longitudinal polar plate 13 is not higher than the upper end of the medium barrier plate 17, the outer surface of the transverse polar plate 15 is in an arc shape, the contact surface with smoke is improved, the outer surface of the transverse polar plate 15 is provided with a plurality of groups of second through holes 16 which are arranged in an array mode, and the second through; the plasma power supply device 18 comprises an EHC high-frequency power supply 181 fixedly mounted on the outer surface of the chassis 1, a connecting wire 182 and a grounding wire 183, wherein an output port of the EHC high-frequency power supply 181 is electrically connected with input ports of the transverse polar plate 15 and the longitudinal polar plate 13 respectively through the connecting wire 182, one end of the grounding wire 183 is connected to the outer surface of the chassis 1, the chassis 1 is made of metal, and the EHC high-frequency power supply 181 is S-960-24 in model number; the smoke sensor 19 comprises an LED light emitting module 191, a light refractive index calculating module 192, a smoke content calculating module 193 and a voltage adjusting module 194, a signal output port of the light refractive index calculating module 192 is connected with a signal input port of the smoke content calculating module 193, a signal output port of the smoke content calculating module 193 is connected with a signal output port of the voltage adjusting module 194, the smoke sensor 19 is fixedly installed on the outer surface of the inner side of the case 1, the type of the smoke sensor 19 is GP2Y1010AUOF, and the smoke sensor has the function of calculating smoke content according to the light refractive index; an input port of the smoke sensor 19 is electrically connected with an output port of the control panel 8, a signal port of the EHC high-frequency power supply 181 is connected with a signal port of the control panel 8, a fan 5 exhausting towards the direction of the outer interface 3 is fixedly arranged on the inner side of the exhaust chamber 2, the model of the fan 5 is HF-200P, an input port of the fan 5 is electrically connected with an output port of the voltage adjusting module 194, and an input port of the voltage adjusting module 194 is electrically connected with an output port of the control panel 8, so that the rotating speed of the fan 5 can be regulated and controlled through the voltage adjusting module 194.

When the device works, a user starts the device by the control panel 8, the device is matched with the display screen 9 and the control button 10 to operate, the fan 5 rotates, smoke enters from the air inlet 12 and flows into the ventilation chamber 4, under the action of the EHC high-frequency power source 181, when the working voltage reaches 80kV and the output current reaches 2.4A, micro discharge can be realized on the longitudinal polar plate 13 and the transverse polar plate 15, the power factor is larger than 0.95, no phase loss and network pollution exist, the performance of an oil smoke removing electric field can be better improved, the average value and the peak value of the output voltage are improved, the micro discharge plasma is ensured to fully load and efficiently run on the longitudinal polar plate 13 and the transverse polar plate 15, oil particles, dust and the like in passing oil smoke are adsorbed, the effect of purifying air is achieved, the pollution to air is reduced, the emission of LED light is carried out by the LED light emission module 191 under the action of the smoke sensor 19, the refractive index is calculated by the light refractive index calculating module 192 by means of the content of smoke dust in the air of the LED light, the content of the smoke dust is judged by the smoke dust content calculating module 193, finally the voltage supplied to the fan 5 is adjusted by the voltage adjusting module 194 according to the content of the smoke dust so as to change the running speed of the fan 5, the circulating speed of the air is changed to achieve the purposes of energy conservation and emission reduction, and the purified flue gas is discharged from the external interface 3.

In conclusion, the smoke is ionized by the high-voltage electric field, and the charged dust in the airflow is separated from the airflow under the action of the electric field, so that the purpose of purifying the waste gas of the range hood is achieved, through the action of the EHC high-frequency power source 181, when the working voltage reaches 80kV and the output current reaches 2.4A, micro-discharge can be realized on the longitudinal polar plate 13 and the transverse polar plate 15, the power factor is greater than 0.95, no phase loss exists, no grid pollution exists, the performance of the smoke-removing electric field can be better improved, the average value and the peak value of the output voltage are improved, the micro-discharge plasma is ensured to fully load and efficiently run on the longitudinal polar plate 13 and the transverse polar plate 15, oil particles, dust and the like in the passing smoke are adsorbed, the effect of purifying the air is achieved, and the pollution to the air; the LED light is emitted by the LED light emitting module 191 under the action of the smoke sensor 19, the refractive index is calculated by the light refractive index calculating module 192 according to the content of smoke in the air of the LED light, the content of the smoke is judged by the smoke content calculating module 193, and finally the voltage supplied to the fan 5 is adjusted by the voltage adjusting module 194 according to the content of the smoke so as to change the running speed of the fan 5 and change the circulation speed of the air to achieve the purposes of energy conservation and emission reduction.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides a little discharge plasma of lampblack absorber gets rid of exhaust gas system, includes quick-witted case (1), exhaust chamber (2), external tapping (3) and air inlet end (6), its characterized in that: the inboard of quick-witted case (1) is run through and is provided with ventilation chamber (4), machine case (1) has laid medium barrier plate (17) of same height along the both sides of inboard surface are fixed, the inboard surface of medium barrier plate (17) is provided with vertical polar plate (13) along vertical direction, the inboard surface of medium barrier plate (17) is close to the fixed horizontal polar plate (15) that is provided with of lower extreme department of vertical polar plate (13), the fixed plasma power supply unit (18) that is provided with of surface of machine case (1), the inboard surface of machine case (1) is close to lower extreme department and is provided with smoke and dust sensor (19).

2. The micro-discharge plasma exhaust gas removal system of a range hood according to claim 1, wherein: the fixed air inlet end (6) that is provided with of lower extreme of machine case (1), the upper end surface of air inlet end (6) is close to edge fixed being provided with and is curved sunshade (7), the front end surface of air inlet end (6) is provided with control panel (8), control panel (8)'s surface is provided with display screen (9), one side that control panel (8)'s surface is close to display screen (9) is provided with control button (10), the quantity of control button (10) is a plurality of groups, control button (10) are the array and arrange, the port of control button (10) and display screen (9) respectively with control panel (8) electric connection, the input port of control panel (8) and the output port electric connection of machine case (1).

3. The micro-discharge plasma exhaust gas removal system of a range hood according to claim 2, wherein: the utility model discloses a LED air conditioner, including air inlet end (6), plenum chamber (4), the lower extreme surface of air inlet end (6) runs through and is provided with air intake (12), the upper end of air intake (12) is opened and is linked together with plenum chamber (4), the lower extreme of air intake (12) is opened and is communicated with in the outside, the place ahead that the lower extreme surface of air inlet end (6) is close to air intake (12) is provided with LED lamp (11), the input port of LED lamp (11) and the output port electric connection of control panel (8).

4. The micro-discharge plasma exhaust gas removal system of a range hood according to claim 1, wherein: the rear end of external tapping (3) is opened, the inboard of external tapping (3) is linked together with the inboard of room (2) of airing exhaust, the inboard of room (2) of airing exhaust is linked together with the inboard of room (4) of airing exhaust, be fixed connection between the front end of external tapping (3) and the rear end surface of room (2) of airing exhaust, smooth fixed connection between the lower extreme of room (2) of airing exhaust and the upper end of quick-witted case (1).

5. The micro-discharge plasma exhaust gas removal system of a range hood according to claim 1, wherein: vertical polar plate (13) vertically install in the upper end surface of horizontal polar plate (15), the edge of vertical polar plate (13) and horizontal polar plate (15) respectively with the inboard surface between fixed connection of medium stopper plate (17), the surface of vertical polar plate (13) is provided with first through-hole (14) that a plurality of groups array were arranged, and first through-hole (14) run through in the surface of vertical polar plate (13), the upper end of vertical polar plate (13) is not higher than the upper end of medium stopper plate (17), the surface of horizontal polar plate (15) is the camber, the surface of horizontal polar plate (15) is provided with second through-hole (16) that a plurality of groups were the array and arranged, and second through-hole (16) run through in the surface of horizontal polar plate (15).

6. The micro-discharge plasma exhaust gas removal system of a range hood according to claim 1, wherein: the plasma power supply device (18) comprises an EHC high-frequency power supply (181), a connecting wire (182) and a grounding wire (183) which are fixedly installed on the outer surface of the case (1), an output port of the EHC high-frequency power supply (181) is respectively electrically connected with input ports of a transverse polar plate (15) and a longitudinal polar plate (13) through the connecting wire (182), one end of the grounding wire (183) is connected to the outer surface of the case (1), and the case (1) is made of metal.

7. The micro-discharge plasma exhaust gas removal system of a range hood according to claim 1, wherein: the smoke sensor (19) comprises an LED light emitting module (191), a light refractive index calculating module (192), a smoke content calculating module (193) and a voltage adjusting module (194), a signal output port of the light refractive index calculating module (192) is connected with a signal input port of the smoke content calculating module (193), a signal output port of the smoke content calculating module (193) is connected with a signal output port of the voltage adjusting module (194), and the smoke sensor (19) is fixedly installed on the outer surface of the inner side of the case (1).

8. The micro-discharge plasma exhaust gas removal system of a range hood according to any one of claims 1 to 7, wherein: the input port of the smoke sensor (19) is electrically connected with the output port of the control panel (8), the signal port of the EHC high-frequency power supply (181) is connected with the signal port of the control panel (8), the fan (5) exhausting towards the direction of the external interface (3) is fixedly arranged on the inner side of the exhaust chamber (2), the input port of the fan (5) is electrically connected with the output port of the voltage adjusting module (194), and the input port of the voltage adjusting module (194) is electrically connected with the output port of the control panel (8).