Uniform light micro-resonance exhaust gas treatment device

Abstract

The invention discloses a uniform light micro-light resonance exhaust gas treatment device, comprising a shell, an air inlet pipe and an air outlet pipe. A plurality of staggered ultraviolet components and photocatalyst components are arranged in the shell. The ultraviolet component comprises a lamp holder and an ultraviolet lamp tube. The photocatalyst component comprises a plate holder and a photocatalyst plate. The photocatalyst plate is an air-permeable mesh plate. The plate holder and the lamp holder are both airtight plate-like structures. An air flow channel for the exhaust gas to pass through is formed between the lamp holder and the plate holder. The photocatalyst plate is located in the air flow channel. The photocatalyst plate is semicircular or parabolic. By arranging the photocatalyst plate in the channel through which the exhaust gas passes, the annular photocatalyst plate completely encloses the ultraviolet lamp tube, so that sufficient light can be obtained to generate a large amount of ozone and free hydroxyl. The exhaust gas passes through the photocatalyst plate and takes away the ozone and hydroxyl generated on both sides of the photocatalyst plate, so that the exhaust gas is fully purified. Moreover, the staggered arrangement of the lamp holder and the plate holder prolongs the exhaust gas purification path, and the exhaust gas purification is more thorough.

Description

Technical Field

[0001] The invention belongs to the technical field of waste gas treatment, and in particular relates to a uniform light micro-light resonance waste gas treatment device. Background Art

[0002] With the current development of industry and commerce and the enhancement of environmental awareness, the deteriorating living environment has been widely valued by the general public and the industry. Due to the vigorous development of industry, air pollution has spread rapidly, harmful waste gas has spread over a wide area, and the pollutants in the waste gas directly harm people's health through the respiratory system. In response to this development trend, various technologies and equipment for environmental protection projects have been continuously developed. The purification of industrial waste gas is one of the most important issues faced in many environmental protection cases.

[0003] At present, the industry mainly adopts activated carbon method, condensation method, spray absorption method, etc. The existing activated carbon waste gas adsorption equipment is complicated, the adsorbent is easily saturated, and the waste gas treatment cost is high due to frequent replacement or regeneration; the simple spray absorption method is not ideal for organic waste gas, and can only remove part of the organic matter and particulate matter in the waste gas, which is difficult to meet the emission standards. Therefore, it is necessary to provide a waste gas treatment device with good purification effect.

[0004] The patent document with the announcement number CN204816178U discloses an exhaust gas treatment device, including a reflective shell, a microwave electrodeless lamp tube arranged in the reflective shell, a microwave converter arranged outside the reflective shell, and a microwave generator connected to the microwave converter through a microwave transmission line. The reflective shell is provided with an air inlet for introducing exhaust gas on one side near one end thereof, and the reflective shell is provided with an air outlet on one side near the other end thereof. The microwave converter is arranged at the end of the reflective shell near the air inlet and is electrically connected to the microwave electrodeless lamp tube. The exhaust gas treatment device generates continuous wavelength microwaves through the microwave generator and transmits them to the microwave converter. A part of the microwaves can excite the microwave electrodeless lamp tube to emit high-intensity ultraviolet rays, and another part of the microwaves and the high-intensity ultraviolet rays are reflected back and forth in the reflective shell for multiple times, and react with the exhaust gas in the reflective tube to obtain a large amount of ozone and free hydroxyl groups, which strongly destroy and oxidize and reduce the exhaust gas molecules, thereby obtaining clean gas.

[0005] The patent document with the announcement number CN206229137U discloses a micro-light resonance waste gas processor, including a body, a waste gas reaction chamber is provided on the body, an air inlet port and an air outlet port for waste gas to enter and exit the waste gas reaction chamber are provided on the body, a microwave generator and an electrodeless ultraviolet lamp assembly electrically connected to the microwave generator are provided in the waste gas reaction chamber, a plurality of vertically arranged ultraviolet lamps with electrodes are provided on one side of the waste gas reaction chamber close to the air outlet, and a first filter is provided at the air outlet. It can strongly destroy and oxidize and reduce waste gas molecules by generating a large amount of ozone and free hydroxyl in the waste gas reaction chamber, and the waste gas molecules after oxidation and reduction can be further oxidized by ultraviolet rays when discharged from the waste gas reaction chamber, and finally remove dust particles in the waste gas molecules through the filter at the air outlet.

[0006] However, due to its short path, that is, the exhaust gas purification time is relatively short, resulting in part of the exhaust gas being discharged without being completely purified. Therefore, it is necessary to extend the exhaust gas purification time and at the same time strengthen the intensity of redox to improve the purification rate.

[0007] Furthermore, during the use of the UV lamp, the user will add a planar photocatalyst plate. The existing photocatalyst plate has the following disadvantages:

[0008] 1. Since the ultraviolet rays emitted by the lamp are diffuse, and the photocatalyst plate is a planar structure, the middle of the photocatalyst plate is close to the lamp, while its edge is far away from the lamp. Therefore, the light intensity obtained in the middle is much greater than that at the edge, resulting in the purification capacity of the middle of the photocatalyst plate being much greater than that at the edge, and the distribution is uneven.

[0009] 2. The exhaust gas flows along one side of the photocatalyst plate, making the ozone and hydroxyl concentrations on one side of the photocatalyst plate lower than those on the other side, resulting in low purification efficiency. Summary of the invention

[0010] The purpose of the present invention is to provide a uniform light micro-light resonance exhaust gas treatment device. By arranging a photocatalyst plate in the channel through which the exhaust gas passes, the annular photocatalyst plate completely encloses the ultraviolet lamp tube, which can obtain sufficient light to produce a large amount of ozone and free hydroxyl. The exhaust gas passes through the photocatalyst plate and takes away the ozone and hydroxyl generated on both sides of the photocatalyst plate, so that the exhaust gas is fully purified. The staggered arrangement of the lamp rack and the plate rack extends the exhaust gas purification path, and the exhaust gas purification is more thorough.

[0011] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: a uniform light micro-light resonance exhaust gas treatment device, comprising a shell, an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe are fixed at both ends of the shell; a plurality of staggered ultraviolet components and photocatalyst components are arranged in the shell, the ultraviolet component comprises a lamp holder and an ultraviolet lamp tube, the ultraviolet lamp tube is fixed on the surface of the lamp holder, the photocatalyst component comprises a plate holder and a photocatalyst plate, the photocatalyst plate is fixed on the surface of the plate holder, and the photocatalyst plate is a breathable mesh plate;

[0012] The board frame and the lamp frame are both airtight plate-like structures, the lamp frame and the board frame are staggeredly arranged inside the shell, an air flow channel for exhaust gas to pass through is formed between the lamp frame and the board frame, the air flow channel is S-shaped, the photocatalyst plate is located in the air flow channel, the photocatalyst plate is semicircular or parabolic, the opening of the photocatalyst plate faces the ultraviolet lamp tube, the ultraviolet lamp tube is located at the center of the circle or center of the photocatalyst plate, the middle end of the photocatalyst plate close to the lamp frame is the low beam end, and the two ends close to the board frame are the high beam ends, the low beam end is sealed with the lamp frame, and the high beam end is sealed with the board frame; the high beam end is arranged opposite to the ultraviolet lamp tube, and the low beam end is located on both sides of the ultraviolet lamp tube; photocatalyst plates are provided on both sides of the board frame, and the photocatalyst plates on both sides of the board frame enclose the ultraviolet lamp tube in a circular or elliptical shape; the ultraviolet lamp tube is located in the middle of the lamp frame, and the ultraviolet lamp tube is exposed on the outer surfaces on both sides of the lamp frame. The uniform light micro-light resonance exhaust gas treatment device also includes a microwave generator, and the microwave generator is electrically connected to the ultraviolet lamp tube.

[0013] Preferably, the lamp holder is provided with a pressing seal, which includes a sealing strip and a sealing plate, one side of the sealing plate is fixed to the surface of the lamp holder, the other side of the sealing plate is fixed to the sealing strip, and the other end of the sealing plate is pressed against the low beam end.

[0014] Preferably, a sealing strip having the same structure as the sealing strip on the sealing plate is provided on the low beam end portion, and the two sealing strips on the low beam end portion and the sealing plate are pressed against each other and sealed.

[0015] Preferably, the sealing strip is made of rubber, and a reflective layer is plated on the surface of the sealing strip for reflecting ultraviolet light and isolating the rubber from contacting exhaust gas, and the reflective layer completely covers the surface of the sealing strip.

[0016] Preferably, the reflective layer is a silver-plated film made of silver.

[0017] Preferably, the air inlet pipe and the air outlet pipe are both located on one side of the edge of the shell where they are located.

[0018] Preferably, the board frame is provided with an inserting plate, the inner surface of the shell is provided with a slot, and the inserting plate is detachably connected to the slot.

[0019] Preferably, the lamp holder is provided with an inserting plate, and the inner surface of the shell is provided with a slot, and the inserting plate is detachably connected to the slot.

[0020] Compared with the prior art, the uniform light micro-light resonance exhaust gas treatment device using the above technical solution has the following beneficial effects:

[0021] 1. Since the photocatalyst plate encloses the ultraviolet lamp to form an ellipse or a circle, the light of the ultraviolet lamp is evenly diffused toward the periphery with the ultraviolet lamp as the axis, and the ultraviolet light can be irradiated on the photocatalyst plate more evenly, and the ultraviolet light is irradiated perpendicular to the surface of the photocatalyst plate, with the maximum intensity. The ultraviolet light irradiation intensity obtained by the low beam end and the high beam end of the photocatalyst plate is relatively close (while the light intensity of a single flat photocatalyst plate is greater than that of the edge because the middle part is close to the ultraviolet lamp), so the ozone and hydroxyl generated on the photocatalyst plate are more uniform and the concentration is also higher, and the purification effect on the exhaust gas is more obvious.

[0022] 2. The photocatalyst board of the present invention is irradiated with sufficient ultraviolet light intensity. At the same time, since the photocatalyst board is curved in a semicircular or parabolic shape, the space occupancy rate of the photocatalyst board is effectively compressed, and uniform irradiation of the ultraviolet lamp is achieved, thereby raising the amount of ozone generated to a higher level.

[0023] 3. Since the low beam end and the high beam end of the photocatalyst plate are sealed and fixed to the lamp frame and the plate frame respectively, the air flow channel passes through the mesh-shaped photocatalyst plate, and the exhaust gas passes through the photocatalyst plate, taking away the ozone and hydroxyl generated on the photocatalyst plate. There is no unreacted ozone and hydroxyl remaining on both sides of the photocatalyst plate, so the ozone and hydroxyl are fully utilized, effectively improving the exhaust gas purification efficiency.

[0024] Fourth, the lamp rack and the plate rack are staggered to form an S-shaped airflow channel for the exhaust gas to pass through, so that the exhaust gas can flow back and forth from the shell. The purification time and path of the exhaust gas in the same space are longer, and the purification efficiency is higher and more complete.

[0025] 5. The microwave generator generates microwaves of continuous wavelength. A part of the microwaves excites the ultraviolet lamp to emit high-intensity ultraviolet rays. The generated high-intensity ultraviolet rays, together with the other part of the microwaves, are reflected and resonated back and forth in the waste gas reaction chamber for many times, obtaining a large amount of ozone and free hydroxyl groups. A large amount of ozone and free hydroxyl groups can strongly destroy and oxidize and reduce waste gas molecules, thereby obtaining clean gas, and then achieving the purpose of organic waste gas treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of an embodiment of a long-path micro-optical resonance exhaust gas treatment device of the present invention;

[0027] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0028] Figure 3 This is a schematic diagram of the structure of the long-diameter micro-optical resonance exhaust gas treatment device in this embodiment;

[0029] Figure 4 Schematic diagram of the structure of the UV component in this embodiment;

[0030] Figure 5 Schematic diagram of the structure of the photocatalyst component in this embodiment;

[0031] Figure 6 Schematic diagram of the combination of the photocatalyst component and the ultraviolet component in this embodiment;

[0032] Figure 7 Schematic diagram of the structure of the housing in this embodiment.

[0033] Figure numerals: 10, outer shell; 11, air inlet pipe; 12, air outlet pipe; 13, slot; 14, plug-in board; 2, photocatalyst assembly; 20, board frame; 22, photocatalyst board; 221, low beam end; 222, high beam end; 3, ultraviolet assembly; 30, lamp frame; 32, sealing plate; 33, sealing strip; 34, ultraviolet lamp tube. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings.

[0035] like Figure 1 and Figure 3 The long-diameter micro-light resonance exhaust gas treatment device shown includes a housing 10, an air inlet pipe 11 and an air outlet pipe 12, wherein the air inlet pipe 11 and the air outlet pipe 12 are fixed at both ends of the housing 10; a plurality of staggered ultraviolet components 3 and photocatalyst components 2 are arranged in the housing 10.

[0036] like Figure 5 As shown, the photocatalyst assembly 2 includes a plate frame 20 and a photocatalyst plate 22, the photocatalyst plate 22 is fixed to the surface of the plate frame 20, and the photocatalyst plate 22 is a semicircular or parabolic breathable mesh plate; the plate frame 20 is an airtight plate structure, the end of the photocatalyst plate 22 close to the lamp frame 30 is a low beam end 221, and the two ends close to the plate frame 20 are high beam ends 222, and an airtight metal plate is provided between the high beam end 222 and the plate frame 20, so that the high beam end 222 and the plate frame 20 are sealed and connected, and the exhaust gas cannot pass through the gap between the high beam end 222 and the plate frame 20, and the low beam end 221 is close to the lamp frame 30, and the low beam end 221 is provided with a sealing strip 33.

[0037] like Figure 4 As shown, the ultraviolet assembly 3 includes a lamp holder 30 and an ultraviolet lamp tube 34. The ultraviolet lamp tube 34 is fixed to the surface of the lamp holder 30. The lamp holder 30 is an airtight plate-like structure. Both sides of the lamp holder 30 are provided with pressing seals. The pressing seals include a sealing strip 33 and a sealing plate 32. One side of the sealing plate 32 is fixed to the surface of the lamp holder 30. The other side of the sealing plate 32 is fixed with the sealing strip 33. The sealing strip 33 of the sealing plate 32 is pressed against the sealing strip 33 of the low beam end 221. The gap between the lamp holder 30 and the low beam end 222 is completely closed by the sealing strip 33.

[0038] like Figure 1 and Figure 2 As shown, the lamp holder 30 and the plate holder 20 are staggered inside the housing 10, and an airflow channel for the exhaust gas to pass through is formed between the lamp holder 30 and the plate holder 20, and the airflow channel is S-shaped, and the photocatalyst plate 22 is located in the airflow channel, and the photocatalyst plate 22 is tilted in the airflow channel. The lamp holder 30 and the plate holder 20 are staggered to form an S-shaped airflow channel (indicated by the dotted line in the figure) for the exhaust gas to pass through, so that the exhaust gas flows back and forth from the housing, and the purification time and path of the exhaust gas in the same space are longer, and the purification efficiency is higher and more complete.

[0039] The low beam end 221 of the photocatalyst board 22 is sealed with the sealing plate 32 by the sealing strip 33, so that the low beam end 221 and the lamp holder 20 are sealed and no longer airtight, and the gap between the lamp holder 30 and the low beam end 222 is completely closed, so that the exhaust gas can only pass through the through hole or mesh surface in the middle of the photocatalyst board 22, and completely take away the ozone and hydroxyl generated on the photocatalyst board 22. In the subsequent airflow, the exhaust gas and hydroxyl are completely mixed and reacted, and no unreacted ozone and hydroxyl remain on both sides of the photocatalyst board 22.

[0040] like Figure 1 and Figure 3 As shown, the ultraviolet lamp 34 is located in the middle of the lamp holder 30, and the ultraviolet lamp 34 is exposed on the outer surface of both sides of the lamp holder 30. The ultraviolet lamp 34 can produce two arc-shaped illumination areas, corresponding to the photocatalyst components 2 located on both sides of the ultraviolet component 3. The surfaces of both sides of the lamp holder 30 are provided with pressing seals. Both sides of the plate frame 20 are provided with photocatalyst plates 22. The air flow channel in the entire housing 10 is always kept in a state of penetrating the photocatalyst plate 22, and the exhaust gas enters the air outlet pipe 12 from the air inlet pipe 11 and flows out, and is always kept in a purified state.

[0041] The sealing strip 30 is made of rubber so that the sealing strip 30 can be pressed against the low beam end portion 221 and fully deformed to form a better sealing effect.

[0042] At the same time, the surface of the sealing strip 30 is coated with a reflective layer. The reflective layer is first used to reflect ultraviolet light to prevent the rubber from being hardened and deteriorated due to long-term exposure; secondly, the reflective layer completely covers the surface of the sealing strip 30. The reflective layer is used to isolate the rubber from contacting exhaust gas, ozone and free hydroxyl groups, avoiding the reaction of substances in the airflow channel to corrode the rubber, and effectively improving the service life of the rubber.

[0043] The reflective layer in this embodiment is a silver-plated film made of silver. The advantages of the silver-plated film are that the cost is relatively low, it is not easy to fall off, and it has good reflective ability.

[0044] like Figure 6As shown, two photocatalyst plates 22 surround the ultraviolet lamp tube 34 to form a circular or nearly circular ellipse, which completely surrounds the ultraviolet lamp tube, so that the ultraviolet light generated by the ultraviolet lamp tube 34 can be irradiated vertically to the surface of the photocatalyst plate 22 with the maximum intensity. The ultraviolet light irradiation intensity obtained by the low beam end and the high beam end of the photocatalyst plate is relatively close, so the ozone and hydroxyl generated on the photocatalyst plate are more uniform and the concentration is also higher, and the purification effect on the exhaust gas is more obvious.

[0045] The ultraviolet lamp 34 achieves uniform irradiation of the photocatalyst plate 22, raising the amount of ozone generated to a higher level; secondly, since the photocatalyst plates are arranged in an inclined and staggered manner, the space occupancy rate of the photocatalyst plates 22 is effectively compressed, reducing the volume of the entire micro-light resonance exhaust gas treatment device; the number of photocatalyst plates 22 per unit volume is increased, and the purification efficiency is improved.

[0046] The plate frame 20 and the lamp frame 30 are both provided with a plug-in board 14, and the inner surface of the housing 10 is provided with a slot 13, and the plug-in board 14 is detachably connected to the slot 13. When the photocatalyst plate 22 is overly dusty, it can be easily removed for cleaning, or when the ultraviolet lamp 34 is damaged, the entire ultraviolet assembly 3 can also be taken out for replacement, simplifying the replacement operation steps.

[0047] The air inlet pipe 11 and the air outlet pipe 12 are both located on one side of the edge of the housing 10 where they are located. The arrangement of the two is determined by the arrangement of the internal ultraviolet component 3 and the photocatalyst component 2. Figure 1 Install as shown.

[0048] The above are preferred embodiments of the present invention. It is apparent to those skilled in the art that several modifications and improvements may be made without departing from the principles of the present invention, and these modifications and improvements should also be considered as the scope of protection of the present invention.

Claims

1. A uniform light micro-resonance exhaust gas treatment device, comprising a housing (10), an air inlet pipe (11) and an air outlet pipe (12), wherein the air inlet pipe (11) and the air outlet pipe (12) are fixed at both ends of the housing (10); characterized in that: A plurality of staggered ultraviolet components (3) and photocatalyst components (2) are arranged in a housing (10); the ultraviolet component (3) comprises a lamp frame (30) and an ultraviolet lamp tube (34); the ultraviolet lamp tube (34) is fixed to the surface of the lamp frame (30); the photocatalyst component (2) comprises a plate frame (20) and a photocatalyst plate (22); the photocatalyst plate (22) is fixed to the surface of the plate frame (20); and the photocatalyst plate (22) is a breathable mesh plate; The plate frame (20) and the lamp frame (30) are both airtight plate-like structures. The lamp frame (30) and the plate frame (20) are staggeredly arranged inside the housing (10). An airflow channel for exhaust gas to pass through is formed between the lamp frame (30) and the plate frame (20). The airflow channel is S-shaped. The photocatalyst plate (22) is located in the airflow channel. The photocatalyst plate (22) is semicircular or parabolic. The opening of the photocatalyst plate (22) faces the ultraviolet lamp tube (34). The ultraviolet lamp tube (34) is located at the center of the photocatalyst plate (22). The two ends of the photocatalyst plate (22) close to the lamp frame (30) are low beam ends (221). The ends close to the plate frame (20) are low beam ends (222). One end of the lamp is a high beam end (222), the low beam end (221) is sealed and connected to the lamp holder (30), and the high beam end (222) is sealed and connected to the board frame (20); the high beam end (222) is arranged opposite to the ultraviolet lamp tube (34), and the low beam end (221) is located on both sides of the ultraviolet lamp tube (34); photocatalyst plates (22) are provided on both sides of the board frame (20), and the photocatalyst plates (22) on both sides of the board frame (20) surround the ultraviolet lamp tube (34) and are circular or elliptical; the ultraviolet lamp tube (34) is located in the middle of the lamp holder (30), and the ultraviolet lamp tube (34) is exposed on the outer surfaces of both sides of the lamp holder (30); The uniform light micro-light resonance exhaust gas treatment device also includes a microwave generator, and the microwave generator is electrically connected to the ultraviolet lamp tube (34); The lamp holder (30) is provided with a pressing seal, the pressing seal comprising a sealing strip (33) and a sealing plate (32), one side of the sealing plate (32) is fixed to the surface of the lamp holder (30), the other side of the sealing plate (32) is fixed to the sealing strip (33), and the other end of the sealing plate (32) is pressed against the low beam end (221); The low beam end portion (221) is provided with a sealing strip (33) having the same structure as the sealing strip on the sealing plate (32), and the low beam end portion (221) and the two sealing strips (33) on the sealing plate (32) are pressed against each other for sealing; The sealing strip (33) is made of rubber, and the surface of the sealing strip (33) is plated with a reflective layer for reflecting ultraviolet light and isolating the rubber from contacting exhaust gas, and the reflective layer completely covers the surface of the sealing strip (33); The reflective layer is a silver-plated film made of silver; The air inlet pipe (11) and the air outlet pipe (12) are both located on one side of the edge of the housing (10) where they are located; The plate frame (20) is provided with an inserting plate (14), and the inner surface of the housing (10) is provided with a slot (13), and the inserting plate (14) and the slot (13) are detachably connected; The lamp holder (30) is provided with an inserting plate (14), and the inner surface of the housing (10) is provided with a slot (13), and the inserting plate (14) and the slot (13) are detachably connected.

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