CN109731448B - Integrated VOCs treatment device combining excimer radiation - Google Patents
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- CN109731448B CN109731448B CN201910142067.1A CN201910142067A CN109731448B CN 109731448 B CN109731448 B CN 109731448B CN 201910142067 A CN201910142067 A CN 201910142067A CN 109731448 B CN109731448 B CN 109731448B
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Abstract
An integrated VOCs treatment device combined with excimer radiation effectively solves the problem that different VOCs gases cannot be effectively treated when plasma technology is combined with excimer ultraviolet light; comprises a gas reaction device, a reaction gas replacing device, a gas extracting and injecting device and a shell; the gas reaction device is arranged in the shell and comprises a shell, an annular baffle is arranged on the outer side of the shell, an inner electrode and an outer electrode are respectively arranged on the middle side of the shell and the inner side of the annular baffle, and a power supply connected with the inner electrode and the outer electrode is arranged at the lower end of the shell; the invention has novel conception and ingenious structure, stores catalytic gas through the two groups of detachable sleeves, can change the positions of the two groups of sleeves at any time, greatly saves the time for changing the gas, saves the manpower and material resources, improves the efficiency and exerts the synergistic advantages of dielectric barrier discharge low-temperature plasma and excimer radiation catalysis on the treatment of VOCs.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to an integrated VOCs treatment device combining excimer radiation.
Background
The Volatile Organic Compounds (VOCs) are organic compounds with saturated vapor pressure of more than 70Pa at normal temperature and boiling point within 260 ℃ at normal pressure, and can be divided into aliphatic hydrocarbon, aromatic hydrocarbon, halogenated hydrocarbon, alcohol, aldehyde, acid, ester, ether, ketone and the like according to different chemical structures, and the harm of the VOCs is divided into direct harm and indirect harm, wherein the direct harm mainly refers to poisoning caused by the fact that the dose of the VOCs ingested by a human body exceeds a certain amount, and carcinogenesis can be caused by long-term contact. While indirect harm mainly refers to photochemical smog, ozone and secondary organic pollution aerosol (SOA) secondary pollution caused by VOCs.
The traditional treatment methods of VOCs, such as absorption, adsorption, condensation, membrane separation, combustion method, and biological method and photocatalytic method commonly used at present have certain defects, especially the defects exist in the treatment of organic waste gas with low concentration (volume fraction less than 10 x 10-4), so that the search for an economic, safe and effective method for removing VOCs with low concentration is the key point of research in recent years, while the advantages of simple and efficient process, large treatment capacity, less secondary pollution and the like of low-temperature plasma are gradually shown in economic and technical aspects, the generation forms of low-temperature plasma include corona discharge, dielectric barrier discharge, glow discharge, spark discharge, sliding arc discharge, microwave plasma and radio-frequency plasma, and considering the use cost, the most discharge mode is generally adopted at present as dielectric barrier discharge, but the single process of low-temperature plasma is still has many defects in treating VOCs, for example, the energy efficiency is low, more CO is generated during degradation, and VOCs intermediates are not completely degraded, so that the VOCs gas is treated by taking a low-temperature plasma technology as a main body and cooperating with other treatment processes; the photocatalysis technology utilizes ultraviolet light to irradiate a catalyst, so that a valence band filled with electrons of the catalyst is transited to an empty conduction band, a positive hole (h +) is left in the valence band to form an electron-hole pair, the photoinduced hole has strong oxidizability and can capture electrons in organic matters adsorbed on the surface of semiconductor particles, and the photoinduced electron also has strong reducibility, so that an electron acceptor is reduced, hydroxyl radicals with strong oxidizing power and the like are generated to finally decompose most organic matters into water and carbon dioxide, and the treatment effect on VOCs can be effectively improved by adopting low-temperature plasma to treat VOCs gas in cooperation with ultraviolet light irradiation.
In practical applications, the gas to be processed is usually a dopant gas, i.e. a plurality of different-component VOCs, so that when the excimer ultraviolet irradiation is used, a plurality of different gases are used to generate illumination with different radiation wavelengths, so that the VOCs gas needs to be processed by combining the low-temperature plasma technology with the illumination with the corresponding radiation wavelength selected according to the processed VOCs gas, i.e. Ar, Kr, Xe, Ne, F2, Cl2 or their mixture gas is needed to form different radiation wavelengths, but in practical applications, the gas inside the apparatus needs to be replaced with troublesome, and a plurality of devices are needed to replace the gas inside the apparatus.
There is a need for an integrated VOCs treatment device that addresses this problem in combination with excimer radiation.
Disclosure of Invention
In view of the above situation, the present invention aims to provide an integrated apparatus for treating VOCs in combination with excimer radiation, which effectively solves the problem that different VOCs cannot be effectively treated when plasma technology is combined with excimer ultraviolet.
The technical scheme for solving the problem is that the device comprises a gas reaction device, a reaction gas replacing device, a gas extracting and injecting device and a shell;
the gas reaction device is arranged in the shell and comprises a shell, an annular baffle is arranged on the outer side of the shell, an inner electrode is arranged on the middle side of the shell, an outer electrode is arranged on the inner side of the annular baffle, a power supply for connecting the inner electrode and the outer electrode is arranged at the lower end of the shell, a plurality of first sleeves are inserted between the annular baffle and the shell, the plurality of first sleeves form an annular cavity surrounding the shell, and a gas collecting and discharging pipeline and a gas collecting pipeline are respectively arranged at the upper end and the lower end of the shell;
the reaction gas replacing device comprises an annular positioning plate fixedly arranged in a shell, the annular positioning plate surrounds the outer side of the gas reaction device, a plurality of vertical sliding grooves in the vertical direction are uniformly distributed on the annular positioning plate, a wedge-shaped sliding block is slidably arranged in the vertical sliding grooves, an annular plate is fixedly arranged on the wedge-shaped sliding block, a plurality of first transverse sliding grooves and a plurality of second transverse sliding grooves are uniformly distributed on the annular plate, the first transverse sliding grooves and the second transverse sliding grooves are arranged in a staggered manner, a first connecting rod and a second connecting rod are respectively slidably arranged in the first transverse sliding grooves and the second transverse sliding grooves, the lower end of the first connecting rod is fixedly connected with a first sleeve, the lower end of the second connecting rod is fixedly connected with a second sleeve, the second sleeve and the first sleeve have the same structure, a plurality of push rods capable of driving the wedge-shaped sliding block to move up and down are arranged on the outer side of the annular positioning plate, the wedge-shaped sliding block can slide clockwise under the action of gravity when leaving the vertical sliding grooves under the drive of the push rod, the upper end of the annular positioning plate is provided with a plurality of inclined sliding grooves which are connected with two adjacent vertical sliding grooves, the height of each inclined sliding groove slides downwards along the clockwise direction, the wedge-shaped sliding block falling on the upper end of each inclined sliding groove slides clockwise to the position of the adjacent vertical sliding groove in the clockwise direction, the upper end of the wedge-shaped sliding block is provided with an electric telescopic rod, the end part of the electric telescopic rod is fixedly connected with a first connecting rod or a second connecting rod, the lower ends of the first sleeve and the second sleeve are respectively provided with a scavenging port, a first check valve is arranged in the scavenging port, the shell is connected with a gas conveying device for extracting or conveying gas in the first sleeve or the second sleeve, the first sleeve and the second sleeve are provided with sealing connecting devices which enable the first sleeve or the second sleeve to be connected with the gas conveying device;
the outside slidable mounting of shell has the sliding sleeve, and the side of shell is equipped with a plurality of logical grooves, is equipped with a plurality of straight-bars that pass logical groove and push rod fixed connection on the sliding sleeve, and the shell upper end is equipped with the power structure that drives the sliding sleeve and reciprocate.
The invention has the beneficial effects that: the device has novel conception and ingenious structure, catalytic gas is stored through the two groups of detachable sleeves, the positions of the two groups of sleeves can be changed at any time, one group of sleeves can work in cooperation with low-temperature plasma to generate excimer laser with relative wavelength, and the other group of sleeves can be used for putting or inputting gas to deal with later use, so that the time for changing the gas can be greatly saved, the manpower and material resources are saved, the efficiency is improved, and the device is provided with two processing channels, so that the waste gas can be degraded independently through excimer radiation; the product can also be used as a photoionization agent, is coupled with plasma, reduces gas breakdown voltage, improves energy utilization rate, can improve removal rate of VOCs, and exerts the synergistic advantages of dielectric barrier discharge low-temperature plasma and excimer radiation catalysis in treating VOCs.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a front sectional view of the present invention.
Fig. 3 is a sectional view taken along the line a-a in fig. 2 according to the present invention.
Fig. 4 is a cross-sectional view taken along line B-B of fig. 2 of the present invention.
Fig. 5 is a cross-sectional view taken along line C-C of fig. 2 of the present invention.
Fig. 6 is an enlarged view D of fig. 1 according to the present invention.
Fig. 7 is an enlarged view E of fig. 1 of the present invention.
Fig. 8 is a sectional view taken along direction F-F in fig. 4 of the present invention.
Fig. 9 is a schematic view of the invention of fig. 8 with the first or second sleeve in place in the alignment receptacle.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Example (b):
as shown in fig. 1 to 9, the present invention includes a gas reaction device, a reaction gas exchange device, a gas extraction and injection device, and a housing 1, the housing 1 is made of metal or quartz having low light transmittance;
the gas reaction device is arranged in the shell 1 and comprises a shell 2, the shell 2 is a cylindrical quartz tube, the light transmittance of the shell 2 reaches more than 90%, the outer side of the shell 2 is provided with an annular baffle 3, the annular baffle 3 is made of quartz, the light transmittance reaches more than 90%, the middle side of the shell 2 is provided with an inner electrode 4, the inner side of the annular baffle 3 is provided with an outer electrode 5, the lower end of the shell 2 is provided with a power supply connected with the inner electrode 4 and the outer electrode 5, the outer side of the power supply is provided with an anti-corrosion protective layer, a plurality of first sleeves 6 are inserted between the annular baffle 3 and the shell 2, the first sleeves 6 contain Ar, Kr, Xe, Ne, F2, Cl2 or mixed gas thereof, the first sleeves 6 are arc-shaped quartz tubes, the light transmittance reaches more than 90%, the plurality of first sleeves 6 form an annular cavity surrounding the shell 2, the plurality of first sleeves 6 can be combined into an annular, the upper end and the lower end of the shell 2 are respectively provided with a gas collecting and discharging pipeline and a gas collecting and discharging pipeline, and the gas collecting and discharging pipeline can respectively discharge VOCs gas to be purified into the gas reaction device and discharge the purified gas out of the shell 1;
the reaction gas replacing device comprises an annular positioning plate 7 fixedly arranged in a shell 1, the light transmittance of the annular positioning plate 7 is less than 10%, the annular positioning plate 7 surrounds the outer side of the gas reaction device, a plurality of vertical sliding grooves 8 in the vertical direction are uniformly distributed on the annular positioning plate 7, wedge-shaped sliders 9 are slidably arranged in the vertical sliding grooves 8, the widths of the wedge-shaped sliders 9 are the same as the widths of the vertical sliding grooves 8, the wedge-shaped sliders 9 are seamlessly connected with the vertical sliding grooves 8 so as to keep the stability of the wedge-shaped sliders 9 during sliding, the lower end faces of the wedge-shaped sliders 9 are inclined planes, the heights of the lower end faces of the wedge-shaped sliders 9 are sequentially increased from left to right, namely the thickness of the right ends of the wedge-shaped sliders 9 is larger than that of the left ends, an annular plate 10 which is slidably connected with a gas collecting and discharging pipeline is fixedly arranged on the wedge-shaped sliders 9, a plurality of horizontal first horizontal, the structure of the first transverse chute 11 is the same as that of the second transverse chute 12, the first transverse chute 11 and the second transverse chute 12 are arranged in a staggered manner, the first transverse chute 11 and the second transverse chute 12 correspond to the vertical chute 8, a first connecting rod 13 and a second connecting rod 14 are respectively arranged in the first transverse chute 11 and the second transverse chute 12 in a sliding manner, the first connecting rod 13 and the second connecting rod 14 are respectively connected with the first transverse chute 11 and the second transverse chute 12 in a vertical direction, the lower end of the first connecting rod 13 is fixedly connected with the first sleeve 6, the lower end of the second connecting rod 14 is fixedly connected with the second sleeve 15, the second sleeve 15 and the first sleeve 6 have the same structure, the outer side of the annular positioning plate 7 is provided with a plurality of push rods 16 capable of driving the wedge-shaped sliding block 9 to move up and down, the push rods 16 are slidably arranged on the annular positioning plate 7, each push rod 16 is respectively positioned at the corresponding vertical chute 8, the upper ends of the push rods 16 are inclined planes which are in fit with, the wedge-shaped sliding block 9 can slide clockwise under the action of gravity when leaving the vertical sliding grooves 8 under the drive of the push rod 16, namely slide leftward, the upper end of the annular positioning plate 7 is provided with a plurality of inclined sliding grooves which are connected with two adjacent vertical sliding grooves 8, so that each two vertical sliding grooves 8 are connected by the inclined sliding grooves, the height of each inclined sliding groove slides downward along the clockwise direction, namely slides downward leftwards, the wedge-shaped sliding block 9 falling on the upper end of each inclined sliding groove is clockwise slid to the position of the adjacent vertical sliding groove 8 in the clockwise direction under the action of self gravity, the upper end of the wedge-shaped sliding block 9 is provided with a horizontally arranged electric telescopic rod 17, the electric telescopic rod 17 is fixedly connected with the wedge-shaped sliding block 9, the width of the electric telescopic rod 17 is smaller than or equal to the width of the vertical sliding grooves 8, the outer surface of the electric telescopic rod 17 is provided with an, when the electric telescopic rod 17 extends or contracts, the first connecting rod 13 or the second connecting rod 14 drives the first sleeve 6 or the second sleeve 15 to gather into a ring shape or disperse, the lower ends of the first sleeve 6 and the second sleeve 15 are respectively provided with a ventilation port 18, the ventilation ports 18 are vertically downward, a first one-way valve is arranged in each ventilation port 18, the shell 1 is connected with a gas conveying device for extracting or conveying gas in the first sleeve 6 or the second sleeve 15 through the ventilation ports 18, and the shell 1, the first sleeve 6 and the second sleeve 15 are provided with a sealing connecting device for connecting the first sleeve 6 or the second sleeve 15 with the gas conveying device;
the outside slidable mounting of shell 1 has sliding sleeve 19, the side of shell 1 is equipped with a plurality of logical grooves 20, the quantity and the position that lead to groove 20 all correspond with the quantity and the position of erecting spout 8, be equipped with a plurality of straight-bars 21 that pass through groove 20 and push rod 16 fixed connection on the sliding sleeve 19, be equipped with a straight-bar 21 in every logical groove 20 promptly, straight-bar 21 and logical groove 20 sliding connection, can keep the stability that straight-bar 21 reciprocated, shell 1 upper end is equipped with the power structure that drives sliding sleeve 19 and reciprocate.
In order to input gas into the first sleeve 6 or the second sleeve 15 through the check valve when the first sleeve 6 or the second sleeve 15 is connected with the gas conveying device, the first check valve comprises a bracket arranged in the first sleeve 6 or the second sleeve 15, the bracket is composed of a plurality of connecting rods, the connecting rods are fixedly connected on the inner wall of the first sleeve 6 or the second sleeve 15, the lower end of the bracket is provided with a vertically arranged first spring 22, the direction of the first spring 22 is vertical downwards, the lower end of the first spring 22 is connected with a ball 23 with the diameter larger than that of the ventilation opening 18, so that the ball 23 can block the ventilation opening 18 under the action of the first spring 22, the sealing connecting device comprises a plurality of connecting pipelines 24 vertically arranged at the lower end of the shell 1 and a sealing flange 25 slidably arranged on the ventilation opening 18, the ventilation opening 18 is sleeved with a first tension spring 26, one end of the first tension spring 26 is fixedly connected with the first sleeve 6 or the second sleeve 15, the other end of the first tension spring 26 is fixedly connected with the sealing flange 25, so that the sealing flange 25 is positioned at the upper end of the ventilation opening 18 under the action of the first tension spring 26, the upper end of the connecting pipeline 24 is provided with an inner pipe 27 which is matched and connected with the ventilation opening 18, the outer side wall of the inner pipe 27 is seamlessly attached to the inner side wall of the ventilation opening 18, the length of the inner pipe 27 is greater than that of the ventilation opening 18, so that when the ventilation opening 18 is installed on the connecting pipeline 24, the inner pipe 27 can penetrate through the ventilation opening 18 and abut against the spherical body 23, so that the spherical body 23 leaves the ventilation opening 18, that is, the connecting pipeline 24 is communicated with the first sleeve 6 or the second sleeve 15, the outer side of the lower end face of the first sleeve 6 or the second sleeve 15 is provided with an annular groove, the lower end face of the first sleeve 6 or the second sleeve 15 is movably connected with a plurality of deflector rods 28 at the annular groove, the lower end of the roller, the lower end of the shell 1 is provided with a plurality of ejector rods 30 which are connected with the deflector rod 28 in a matching manner around the connecting pipeline 24, and the ejector rods 30 are positioned on the lower side of the annular groove on the first sleeve 6 or the second sleeve 15, so that when the first sleeve 6 or the second sleeve 15 is installed in the annular baffle plate 3, the ejector rods 30 are abutted against the outer end of the deflector rod 28, the deflector rod 28 is rotated, and the lower end of the deflector rod 28 drives the sealing flange 25 to move downwards to the connecting part of the scavenging port 18 and the connecting pipeline 24 through the roller 29.
The lower end of the shell 1 is provided with a base 31 with supporting and ventilating functions, the upper end of the base 31 is provided with a sealing shell 32 arranged outside the gas reaction device, the sealing shell 32 is fixedly connected with the lower end of the shell 1, and the lower end of the base 31 is provided with a plurality of supporting legs 33, so that a certain space exists between the base 31 and the ground.
The gas conveying device comprises an inflation tank 35 arranged on the shell 1 and a recovery tank 34 arranged on the base 31, a pneumatic three-way regulating valve 36 respectively connected with the inflation tank 35, the recovery tank 34 and the connecting pipeline 24 is arranged at the upper end of the base 31, so that Ar, Kr, Xe, Ne, F2, Cl2 or mixed gas thereof in the inflation tank 35 enters the first sleeve 6 or the second sleeve 15 through the pneumatic three-way regulating valve 36, or the gas in the first sleeve 6 or the second sleeve 15 is discharged into the recovery tank 34 through the pneumatic three-way regulating valve 36, a gas distribution device is arranged in the inflation tank 35, the pneumatic three-way regulating valve 36 is respectively connected with the inflation tank 35 and the recovery tank 34 through the first pipeline 37 and the second pipeline 38, a first gas compressor 39 and a vacuum pump 40 are arranged in the base 31, the first gas compressor 39 is connected with the first pipeline 37, the vacuum pump 40 is connected with the second pipeline 38, the connecting pipeline 24 is internally provided with an air pressure sensor, the type of the air pressure sensor can be HP303B, the base 31 is provided with a controller connected with the air pressure sensor, the controller is also connected with the first air compressor 39 and the vacuum pump 40 and is connected with the pneumatic three-way regulating valve 36, the controller is also connected with the electric telescopic rod 17, the controller can be a computer, the computer can be a household computer or an MCU computer, and corresponding programs set by the computer can be controlled by a DSP chip to complete corresponding operations.
The gas distribution device comprises a plurality of inflation ports arranged in the inflation box 35, wherein the inflation ports are sequentially connected with a manual diaphragm valve, a second one-way valve, a pneumatic diaphragm valve and a second gas compressor, and the second gas compressor is connected with a gas tank filled with high-purity gas, so that different or same gas can be filled into the inflation box 35 through each inflation port, and pure gas or mixed gas of Ar, Kr, Xe, Ne, F2, Cl2 and the like can be formed in the inflation box 35.
The gas collecting pipe including the annular duct 41 of connecting the casing 2 inner chamber, penetrate first straight tube 42 and a plurality of second straight tube 43 of base 31, annular duct 41, first straight tube 42 and second straight tube 43 all communicate, install two-position three-way valve 44 on the second straight tube 43, the one end of two-position three-way valve 44 stretches out seal housing 32 and is connected with air compressor, make can air compressor pass through two-position three-way valve 44 with the air injection second straight tube 43 in, the second end and the second straight tube 43 of two-position three-way valve 44 are connected, the opening of the third end of two-position three-way valve 44 is vertical upwards.
The gas collecting and discharging pipeline comprises a conical cavity 45 arranged at the upper end of a shell 2, the conical cavity 45 is communicated with the inside of the shell 2 through a plurality of air holes at the upper end of the shell 2, an exhaust pipeline 46 arranged at the upper end of the shell 2 is arranged at the upper side of the conical cavity 45, the upper end of the exhaust pipeline 46 extends out of the shell 1, the upper end and the lower end of the conical cavity 45 are respectively communicated with the exhaust pipeline 46 and the shell 2, so that a first straight pipe 42, a ring pipe, the shell 2, the conical cavity 45 and the exhaust pipeline 46 form a first VOCs gas purifying and discharging channel, namely VOCs gas enters the shell 2 through the first straight pipe 42 and the ring pipe, the VOCs gas is jointly purified through excimer radiation and plasma formed by the first sleeve 6 or the second sleeve 15 and the shell 2, the gas is suitable for purifying the VOCs gas with higher concentration, the upper ends of the first sleeve 6 and the second sleeve 15 are both, the lower end of the exhaust pipeline 46 is provided with a special-shaped cavity 48 communicated with a communication port 47, so that the first straight pipe 42, the second branch pipe, the cavity formed by the seal housing 32 and the annular baffle 3, and the special-shaped cavity 48 and the exhaust pipeline 46 form a second VOCs gas purification exhaust pipeline, so that VOCs gas enters the cavity formed by the seal housing 32 and the annular baffle 3 through the first straight pipe 42 and the second straight pipe 43, and simultaneously air is injected into the cavity formed by the seal housing 32 and the annular baffle 3 through an air compressor, so that the concentration of the VOCs gas entering the cavity formed by the seal housing 32 and the annular baffle 3 is reduced, the VOCs gas entering the cavity formed by the seal housing 32 and the annular baffle 3 is subjected to photodegradation through excimer radiation transmitted through the first sleeve 6 or the second sleeve 15, and the VOCs gas purification exhaust channel can be selected according to the treatment amount or concentration of VOCs to be treated to be purified by only using the first VOCs gas purification exhaust channel or simultaneously using the first VOCs gas purification exhaust channel and the second VOCs gas purification The two-VOCs gas purification discharge channel purifies VOCs gas.
In order to consider the installation problem and the transmission stability, the power structure comprises an inner gear 49 arranged at the upper end of the inner side surface of the sliding sleeve 19 and an inner thread 50 arranged at the lower end of the inner side surface of the sliding sleeve 19, an outer thread matched with the inner thread 50 is arranged on the shell 1, a rotating motor 51 is fixedly connected to the upper end of the exhaust pipeline 46, the shell 1 is driven to rotate through the rotating motor 51, the rotating motor 51 is connected with a controller, a first gear 52 is arranged on a rotating shaft of the rotating motor 51, a second gear 53 and a third gear 54 are arranged on the exhaust pipeline 46, the second gear 53 is fixedly connected with the third gear 54, the second gear 53 is meshed with the first gear 52, a planet carrier 55 is fixedly connected to the upper end of the shell 1, a plurality of planet gears 56 are arranged on the planet carrier 55, the planet gears 56 are simultaneously meshed with the inner gear 49 and, The planetary gear 56 and the internal gear 49 form a reduction planetary gear 56 train, which can reduce the axial stress of the rotating motor 51 and prolong the service life of the rotating motor 51.
The upper end of the annular positioning plate 7 is provided with a positioning socket 57 in the middle of the inclined sliding groove, so that the first sleeve 6 or the second sleeve 15 cannot fall into the lower end of the shell 1 when the wedge-shaped sliding block 9 slides into the positioning socket 57, and the positioning socket 57 and the vertical sliding groove 8 are arranged in a staggered manner, so that the first sleeve 6 and the second sleeve 15 are arranged at the upper end of the shell 1 when the device is not used or fails, and the first sleeve 6 and the second sleeve 15 can be conveniently installed, replaced and installed or observed through the through groove 20.
In order to improve the sealing performance of the device and prevent the VOCs gas from flowing out of the joint of the first sleeve 6 or the second sleeve 15 through sealing, the upper end of the sealing shell 32 is provided with a sealing ring which is matched and connected with the first sleeve 6 or the second sleeve 15.
When the gas purification device is used, when other VOCs gas needs to be treated so that catalytic gas needs to be replaced, the VOCs gas purified according to needs is filled with appropriate gas in the inflation box 35 through the gas distribution device, and the gas in the inflation box 35 is filled into the first sleeve 6 through the ventilation port 18 by using the first gas compressor 39.
The second sleeve 15 is installed in the annular baffle 3, the rotation motor 51 is controlled to rotate by the controller, the sliding sleeve 19 is driven to rotate by the reduction planetary gear train, the sliding sleeve 19 is connected with the external thread by the matching of the internal thread 50, so that the sliding sleeve 19 moves upwards, the sliding sleeve 19 drives the wedge-shaped slider 9 to move upwards by the push rod 16, the annular plate 10 fixedly connected with the wedge-shaped slider 9 drives the first sleeve 6 and the second sleeve 15 to move upwards along with the wedge-shaped slider 9 until the wedge-shaped slider 9 leaves the vertical chute 8, when the wedge-shaped slider 9 leaves the vertical chute 8, the wedge-shaped slider 9 slides downwards along with the inclined plane at the upper end of the push rod 16, namely slides for a certain distance in the clockwise direction, the rotation motor 51 rotates reversely, so that the sliding sleeve 19 moves downwards, so that the push rod 16 moves downwards, when the wedge-shaped slider, when wedge slider 9 removes in locating socket 57, electric telescopic handle 17 work, impel first sleeve 6 to the upside of ring baffle 3, then a plurality of first sleeve 6 form annular sleeve pipe, pull out second sleeve 15 to the gas delivery device upside, rotation motor 51 forward rotation, make push rod 16 rebound, drive wedge slider 9 and leave locating socket 57, make wedge slider 9 slide in the vertical chute 8, at this moment, first sleeve 6 removes the angle to second sleeve 15, second sleeve 15 removes the angle to first sleeve 6, when wedge slider 9 and annular plate 10 move down to the bottommost under self effect, first sleeve 6 gets into in ring baffle 3, can purify work.
The ventilation port 18 of the second sleeve 15 is connected with the connecting pipe 24, when the second sleeve moves downwards, the ejector rod 30 is pressed against the outer end of the shift rod 28, the inner end of the shift rod 28 rotates downwards, the shift rod 28 sleeves the sealing flange 25 at the joint of the ventilation port 18 and the connecting pipe 24, when the built-in pipe 27 on the connecting pipe 24 pushes the ball 23 open against the elastic force of the first spring 22, the pneumatic three-way regulating valve 36 enables the second sleeve 15 to be communicated with the recycling tank 34, the gas in the second sleeve 15 is pumped into the recycling tank 34 through the vacuum pump 40, the gas distribution device fills the catalytic gas suitable for the VOCs gas of the next project into the inflation tank 35, the pneumatic three-way regulating valve 36 is controlled to enable the second sleeve 15 to be communicated with the inflation tank 35, the first gas compressor 39 is controlled to inject the gas into the second sleeve 15, when the pressure sensor senses that the pressure in the second sleeve 15 and the connecting pipe reaches a certain intensity, the pneumatic three-way regulating valve 36 is closed to enable the valves in three directions to be opened, and after VOCs gas treatment in the engineering is finished, the positions of the first sleeve 6 and the second sleeve 15 can be replaced by the method for treating VOCs gas in the next engineering.
In the course of handling VOCs gas, can come to fill into the air in the gaseous exhaust passage of second VOCs through controlling two-position three-way valve 44 to reduce the gaseous concentration of VOCs, can be complete handle VOCs gas.
The invention has the beneficial effects that: the device has novel conception and ingenious structure, catalytic gas is stored through the two groups of detachable sleeves, the positions of the two groups of sleeves can be changed at any time, one group of sleeves can work in cooperation with low-temperature plasma to generate excimer laser with relative wavelength, and the other group of sleeves can be used for putting or inputting gas to deal with later use, so that the time for changing the gas can be greatly saved, the manpower and material resources are saved, the efficiency is improved, and the device is provided with two processing channels, so that the waste gas can be degraded independently through excimer radiation; the product can also be used as a photoionization agent, is coupled with plasma, reduces gas breakdown voltage, improves energy utilization rate, can improve removal rate of VOCs, and exerts the synergistic advantages of dielectric barrier discharge low-temperature plasma and excimer radiation catalysis in treating VOCs.
Claims (10)
1. An integrated VOCs treatment device combining excimer radiation comprises a gas reaction device, a reaction gas replacement device, a gas extraction and injection device and a shell (1); the gas reaction device is arranged in the shell (1) and comprises a shell (2), an annular baffle (3) is arranged on the outer side of the shell (2), an inner electrode (4) is arranged on the middle side of the shell (2), an outer electrode (5) is arranged on the inner side of the annular baffle (3), a power supply for connecting the inner electrode (4) and the outer electrode (5) is arranged at the lower end of the shell (2), a plurality of first sleeves (6) are inserted between the annular baffle (3) and the shell (2), the first sleeves (6) form an annular cavity surrounding the shell (2), and a gas collecting and discharging pipeline and a gas collecting pipeline are respectively arranged at the upper end and the lower end of the shell (2); the reaction gas replacing device comprises an annular positioning plate (7) fixedly arranged in a shell (1), the annular positioning plate (7) surrounds the outer side of the gas reaction device, a plurality of vertical sliding grooves (8) in the vertical direction are uniformly distributed on the annular positioning plate (7), wedge-shaped sliding blocks (9) are arranged in the vertical sliding grooves (8) in a sliding manner, annular plates (10) fixedly arranged on the wedge-shaped sliding blocks (9), a plurality of first transverse sliding grooves (11) and a plurality of second transverse sliding grooves (12) are uniformly distributed on the annular plates (10), the first transverse sliding grooves (11) and the second transverse sliding grooves (12) are arranged in a staggered manner, first connecting rods (13) and second connecting rods (14) are respectively arranged in the first transverse sliding grooves (11) and the second transverse sliding grooves (12) in a sliding manner, the lower ends of the first connecting rods (13) are fixedly connected with a first sleeve (6), and the lower ends of the second connecting rods (14) are fixedly connected with a second sleeve (, the structure of the second sleeve (15) is the same as that of the first sleeve (6), a plurality of push rods (16) capable of driving the wedge-shaped sliding block (9) to move up and down are arranged on the outer side of the annular positioning plate (7), the upper end of each push rod (16) is an inclined plane matched with the lower end face of the wedge-shaped sliding block (9), so that the wedge-shaped sliding block (9) can slide clockwise under the action of gravity when leaving the vertical sliding groove (8) under the driving of the push rods (16), a plurality of inclined sliding grooves are arranged on the upper end of the annular positioning plate (7), the inclined sliding grooves are connected with two adjacent vertical sliding grooves (8), the heights of the inclined sliding grooves slide downwards along the clockwise direction, the wedge-shaped sliding block (9) falling on the upper end of the inclined sliding grooves slide clockwise to the adjacent vertical sliding groove (8) in the clockwise direction, an electric telescopic rod (17) is arranged on the upper end of the wedge-shaped sliding block (9), and the, the lower ends of the first sleeve (6) and the second sleeve (15) are respectively provided with a scavenging port (18), a first one-way valve is arranged in the scavenging port (18), the shell (1) is connected with a gas conveying device for extracting or conveying gas in the first sleeve (6) or the second sleeve (15) through the scavenging port (18), and the shell (1), the first sleeve (6) and the second sleeve (15) are provided with a sealing connecting device for connecting the first sleeve (6) or the second sleeve (15) with the gas conveying device; the outer side of the shell (1) is slidably provided with a sliding sleeve (19), the side face of the shell (1) is provided with a plurality of through grooves (20), the sliding sleeve (19) is provided with a plurality of straight rods (21) which penetrate through the through grooves (20) and are fixedly connected with the push rod (16), and the upper end of the shell (1) is provided with a power structure which drives the sliding sleeve (19) to move up and down.
2. The integrated VOCs treatment device of claim 1, wherein the first one-way valve comprises a support arranged in the first sleeve (6) or the second sleeve (15), a first spring (22) is vertically arranged at the lower end of the support, a ball (23) with a diameter larger than that of the ventilation port (18) is connected to the lower end of the first spring (22), the sealing connection device comprises a plurality of connecting pipes (24) vertically arranged at the lower end of the housing (1) and a sealing flange (25) slidably arranged on the ventilation port (18), a first tension spring (26) is sleeved on the ventilation port (18), one end of the first tension spring (26) is fixedly connected with the first sleeve (6) or the second sleeve (15), the other end of the first tension spring (26) is fixedly connected with the sealing flange (25), an inner pipe (27) matched and connected with the ventilation port (18) is arranged at the upper end of the connecting pipe (24), the length of inner pipe (27) is greater than the length of scavenge port (18), the outside of the lower terminal surface of first sleeve pipe (6) or second sleeve pipe (15) is equipped with the annular groove, on the lower terminal surface of first sleeve pipe (6) or second sleeve pipe (15) in annular groove swing joint have a plurality of driving lever (28), the lower extreme of driving lever (28) is equipped with a plurality of gyro wheels (29), gyro wheel (29) and sealing flange (25) roll connection, the lower extreme of shell (1) is equipped with a plurality of ejector pins (30) of being connected with driving lever (28) cooperation around connecting tube (24).
3. An integrated VOCs treatment device in combination with excimer radiation according to claim 1, wherein the lower end of the casing (1) is provided with a base (31), the upper end of the base (31) is provided with a sealed casing (32) installed outside the gas reaction device, and the lower end of the base (31) is provided with a plurality of support legs (33).
4. The integrated VOCs treatment device for combined excimer radiation according to claim 3, wherein the gas delivery device comprises an inflation tank (35) mounted on the housing (1) and a recovery tank (34) mounted on the base (31), the upper end of the base (31) is provided with a pneumatic three-way regulating valve (36) respectively connected with the inflation tank (35), the recovery tank (34) and the connecting pipeline (24), a gas distribution device is arranged in the inflation tank (35), the pneumatic three-way regulating valve (36) is respectively connected with the inflation tank (35) and the recovery tank (34) through a first pipeline (37) and a second pipeline (38), a first gas compressor (39) and a vacuum pump (40) are arranged in the base (31), the first gas compressor (39) is connected with the first pipeline (37), the vacuum pump (40) is connected with the second pipeline (38), and a gas pressure sensor is arranged in the connecting pipeline (24), the base (31) is provided with a controller connected with an air pressure sensor, and the controller is also connected with a first air compressor (39), a vacuum pump (40) and a pneumatic three-way regulating valve (36).
5. An integrated VOCs treatment device in combination with excimer radiation according to claim 4, wherein the gas dispensing device comprises a plurality of inflation ports arranged in an inflation tank (35), and a manual diaphragm valve, a second one-way valve, a pneumatic diaphragm valve and a second gas compressor are connected to the inflation ports in sequence, and the second gas compressor is connected to a gas tank filled with high-purity gas.
6. An integrated VOCs treatment device combining excimer radiation according to claim 1, wherein the gas collection pipeline comprises an annular pipeline (41) connecting the inner cavity of the shell (2), a first straight pipe (42) penetrating into the base (31) and a plurality of second straight pipes (43), a two-position three-way valve (44) is installed on each second straight pipe (43), one end of the two-position three-way valve (44) extends out of the sealed shell (32) and is connected with an air compressor, the second end of the two-position three-way valve (44) is connected with the second straight pipes (43), and the opening of the third end of the two-position three-way valve (44) is vertically upward.
7. The integrated VOCs treatment device combining excimer radiation as claimed in claim 1, wherein the gas collection and discharge pipeline comprises a conical cavity (45) arranged at the upper end of the casing (2), an exhaust pipeline (46) arranged at the upper end of the casing (2) is arranged on the upper side of the conical cavity (45), the upper end of the exhaust pipeline (46) extends out of the casing (1), the upper end and the lower end of the conical cavity (45) are respectively communicated with the exhaust pipeline (46) and the casing (2), the upper ends of the first sleeve (6) and the second sleeve (15) are respectively provided with a communication port (47), and the lower end of the exhaust pipeline (46) is provided with a special-shaped cavity (48) communicated with the communication port (47).
8. The integrated VOCs treatment device of claim 2, wherein the power structure comprises an internal gear (49) arranged at the upper end of the inner side of the sliding sleeve (19) and an internal thread (50) arranged at the lower end of the inner side of the sliding sleeve (19), the housing (1) is provided with an external thread matched and connected with the internal thread (50), the upper end of the exhaust pipeline (46) is fixedly connected with a rotating motor (51), a rotating shaft of the rotating motor (51) is provided with a first gear (52), the exhaust pipeline (46) is provided with a second gear (53) and a third gear (54), the second gear (53) is fixedly connected with the third gear (54), the second gear (53) is meshed with the first gear (52), the upper end of the housing (1) is fixedly connected with a planet carrier (55), the planet carrier (55) is provided with a plurality of planet gears (56), the planet gears (56) mesh with both the internal gear (49) and the third gear (54).
9. The integrated VOCs treatment device combining excimer radiation as claimed in claim 1, wherein the upper end of the annular positioning plate (7) is provided with positioning sockets (57) in the middle of the inclined sliding chute, and the positioning sockets (57) and the vertical sliding chutes (8) are staggered.
10. An integrated VOCs treatment apparatus in combination with excimer radiation as claimed in claim 3, wherein the upper end of the sealed housing (32) is provided with a sealing ring which is adapted to engage with the first sleeve (6) or the second sleeve (15).
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| DE102019129864B4 (en) * | 2019-11-06 | 2023-04-20 | Schaeffler Technologies AG & Co. KG | Anvil tool and method of joining machine parts |
| CN111606310B (en) * | 2020-05-28 | 2021-12-17 | 杭州博大净化设备有限公司 | Nitrogen purifier capable of replacing catalyst on line |
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