Photocatalytic waste gas treatment equipment

Abstract

The utility model discloses photocatalytic waste gas treatment equipment which comprises a box body and is characterized by further comprising a catalytic plate fixing mechanism and an ultraviolet lamp tube shrinking mechanism, the catalytic plate fixing mechanism comprises rectangular strips, sliding grooves and sliding strips, the rectangular strips are arranged in the middles of the upper inner wall and the lower inner wall of the box body respectively, the sliding grooves are formed in the temporal portions of the rectangular strips respectively, the sliding strips are slidably connected into the sliding grooves respectively, and a catalytic plate is fixedly connected between the inner side ends of the two sliding strips; the ultraviolet lamp tube shrinking mechanism comprises T-shaped sliding strips and a supporting plate, strip-shaped blocks which are in bilateral symmetry are arranged at the upper end of the box body, sliding grooves are formed in the strip-shaped blocks respectively, and the T-shaped sliding strips are slidably connected into the sliding grooves respectively. The ultraviolet lamp tube is convenient to maintain, and meanwhile, the catalytic plate is convenient to mount and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of photocatalytic waste gas treatment, in particular to a photocatalytic waste gas treatment device. Background Technique

[0002] Photocatalytic waste gas treatment is a new and promising waste gas treatment technology. Its core principle is to utilize the strong oxidation ability generated by photocatalysts under light irradiation of a specific wavelength to decompose and transform harmful components in the waste gas. Common photocatalysts such as titanium dioxide will generate electron-hole pairs under the irradiation of ultraviolet light. These electrons and holes have strong redox abilities and can react with organic and inorganic substances in the waste gas. Photocatalytic waste gas treatment has many advantages. First, it has wide applicability and can treat various types of waste gas, including volatile organic compounds, nitrogen oxides, sulfides, etc. Second, the treatment effect is relatively remarkable, and harmful substances in the waste gas can be decomposed into harmless small molecule substances such as carbon dioxide and water. Third, the reaction conditions are relatively mild and usually can be carried out at normal temperature and pressure, reducing energy consumption and operating costs.

[0003] In some existing photocatalytic waste gas treatment devices, when photocatalytically treating waste gas, an ultraviolet lamp tube and a catalytic plate are installed inside the chassis. Under the operation of the ultraviolet lamp tube, ultraviolet light is irradiated on the surface of the catalytic plate, and strongly oxidizing free radicals are generated. These free radicals can quickly react with harmful substances in the waste gas and decompose them into harmless substances.

[0004] Some traditional photocatalytic waste gas treatment devices have the following problems: when photocatalytically treating waste gas, during long-term operation, when repairing the ultraviolet lamp tube, it is inconvenient for workers to enter the interior of the chassis for maintenance, and at the same time, the catalytic plate is not easy to install and replace. For this reason, we propose a photocatalytic waste gas treatment device. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a photocatalytic waste gas treatment device. When photocatalytically treating waste gas, the ultraviolet lamp tube can automatically retract, which is convenient for maintaining the ultraviolet lamp tube, and at the same time, it is convenient for installing and replacing the catalytic plate, and can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A photocatalytic waste gas treatment device, including a box body, characterized in that: it further includes a catalytic plate fixing mechanism and an ultraviolet lamp tube retracting mechanism;

[0007] Catalytic plate fixing mechanism: It includes a rectangular bar, a sliding groove and a sliding bar. The middle parts of the upper and lower inner walls of the box body are respectively provided with rectangular bars. The temporal parts of the rectangular bars are respectively provided with sliding grooves. The inner parts of the sliding grooves are respectively slidably connected with sliding bars. A catalytic plate is fixedly connected between the inner ends of the two sliding bars;

[0008] Ultraviolet lamp retraction mechanism: It includes a T-shaped sliding bar and a support plate. Symmetrically arranged strip-shaped blocks are provided at the upper end of the box body. The inner parts of the strip-shaped blocks are respectively provided with sliding grooves. The inner parts of the sliding grooves are respectively slidably connected with T-shaped sliding bars. The lower ends of the T-shaped sliding bars are respectively fixedly connected with support plates. Uniformly distributed ultraviolet lamps are respectively provided at the lower ends of the support plates. When performing photocatalytic treatment on waste gas, the ultraviolet lamps can automatically retract, which is convenient for maintaining the ultraviolet lamps and at the same time convenient for installing and replacing the catalytic plate.

[0009] Furthermore, a control switch group is provided at the front end of the left side of the box body. The input end of the control switch group is electrically connected to an external power supply, and the input ends of the ultraviolet lamps are all electrically connected to the output end of the control switch group to provide electrical connections for each electrical appliance.

[0010] Furthermore, the catalytic plate fixing mechanism further includes small support plates, pin shafts and C-shaped retaining bars. Small support plates are respectively provided at the front ends of the left sides of the rectangular bars. The front sides of the outer ends of the small support plates are respectively fixedly connected with pin shafts. The outer ends of the pin shafts are respectively rotatably connected with C-shaped retaining bars. The right ends of the C-shaped retaining bars are respectively installed in cooperation with the front ends of the right sides of the adjacent rectangular bars to provide rotational connection.

[0011] Furthermore, the catalytic plate fixing mechanism further includes threaded rods and dial wheels. Threaded holes are respectively provided inside the front ends of the right sides of the rectangular bars and the right ends of the C-shaped retaining bars. The inner parts of the threaded holes are respectively threadedly connected with threaded rods. The right ends of the threaded rods are respectively fixedly connected with dial wheels to facilitate locking.

[0012] Furthermore, the ultraviolet lamp retraction mechanism further includes racks, rotating shafts, gears and motors. Support plates are respectively provided at the front ends of the upper surfaces of the strip-shaped blocks. Motors are respectively provided at the upper ends of the support plates. The lower ends of the motors are respectively fixedly connected with rotating shafts. Gears are respectively fixedly sleeved in the middle parts of the rotating shafts. Racks are respectively provided at the inner ends of the T-shaped sliding bars. The racks are respectively meshed with the adjacent gears. The input ends of the motors are all electrically connected to the output end of the control switch group to provide retraction drive.

[0013] Furthermore, vertically arranged bars are provided symmetrically in the front and back at the right end inside the box body. The inner parts of the vertically arranged bars are respectively slidably connected with I-shaped sliding bars. A filter cotton is provided between the inner ends of the I-shaped sliding bars to provide filtration.

[0014] Furthermore, air inlets are respectively arranged at the left and right ends of the box body. The left and right sides of the front end of the box body are respectively hinged with box doors through hinges, and the right side of the upper end of the box body is hinged with a baffle door corresponding to the filter cotton through a hinge, which is convenient for maintenance.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: This photocatalytic waste gas treatment equipment has the following advantages:

[0016] 1. Driven by the motor, the rotating shaft rotates. The rotating shaft will respectively drive the T-shaped sliding strips to move forward inside the sliding grooves through the gears and the engaged racks, and then drive the ultraviolet lamp tubes to extend out of the box body through the support plates, so that workers can maintain the ultraviolet lamp tubes. When photocatalytically treating waste gas, the ultraviolet lamp tubes can automatically retract, which is convenient for maintaining the ultraviolet lamp tubes.

[0017] 2. By rotating the dial wheels, the dial wheels will respectively drive the threaded rods to rotate and move rightward in the adjacent threaded holes, so that the threaded rods will respectively disengage from the threaded holes. Then rotate the C-shaped retaining strips, and the sliding strips will disengage from the blocking of the C-shaped retaining strips. Then pull out the sliding strips from the inside of the sliding grooves to replace the catalytic plates, which is convenient for installing and replacing the catalytic plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a schematic sectional structural diagram of the present utility model;

[0020] Figure 3 is a schematic front-side sectional structural diagram of the present utility model;

[0021] Figure 4 is an enlarged structural diagram at position A of the present utility model;

[0022] Figure 5 is an enlarged structural diagram at position B of the present utility model.

[0023] In the figure: 1 box body, 2 air inlet, 3 box door, 4 catalytic plate fixing mechanism, 41 rectangular strip, 42 sliding groove, 43 sliding strip, 44 small support plate, 45 pin shaft, 46 threaded rod, 47 dial wheel, 48 C-shaped retaining strip, 5 catalytic plate, 6 strip-shaped block, 7 support plate, 8 ultraviolet lamp tube retracting mechanism, 81 T-shaped sliding strip, 82 support plate, 83 rack, 84 rotating shaft, 85 gear, 86 motor, 9 ultraviolet lamp tube, 10 vertical strip, 11 I-shaped sliding strip, 12 filter cotton, 13 baffle door, 14 control switch group. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-5 , this embodiment provides a technical solution: a photocatalytic waste gas treatment device, including a box body 1, characterized in that: it further includes a catalytic plate fixing mechanism 4 and an ultraviolet lamp tube retracting mechanism 8. There are vertically symmetric strips 10 at the right end inside the box body 1. The inside of the strips 10 are respectively slidably connected with I-shaped sliders 11. A filter cotton 12 is provided between the inner ends of the I-shaped sliders 11. Air inlets 2 are respectively opened at the left and right ends of the box body 1. The left and right sides of the front end of the box body 1 are respectively hinged with box doors 3 through hinges. The right side of the upper end of the box body 1 is hinged with a baffle door 13 corresponding to the filter cotton 12 through a hinge. When photocatalytically treating waste gas, first connect it to the left air inlet 2 through an external connecting pipe, then the waste gas will be injected into the interior of the box body 1. Then, by adjusting the control switch group 14, the ultraviolet lamp tube 9 operates, and the ultraviolet lamp tube 9 emits ultraviolet light. The ultraviolet light irradiates on the surface of the catalytic plate 5, exciting the generation of strongly oxidizing free radicals. These free radicals can quickly react with the harmful substances in the waste gas and decompose them into harmless substances. Then, the gas of the waste gas will be filtered through the filter cotton 12 again;

[0026] Catalytic plate fixing mechanism 4: It includes a rectangular bar 41, a chute 42 and a sliding bar 43. The middle parts of the upper and lower inner walls of the box body 1 are respectively provided with a rectangular bar 41. The temporal parts of the rectangular bar 41 are respectively provided with a chute 42. The inner parts of the chutes 42 are respectively slidably connected with a sliding bar 43. A catalytic plate 5 is fixedly connected between the inner ends of the two sliding bars 43. The catalytic plate fixing mechanism 4 further includes a small support plate 44, a pin shaft 45 and a C-shaped retaining bar 48. Small support plates 44 are respectively provided at the front ends on the left side of the rectangular bar 41. The front sides of the outer ends of the small support plates 44 are respectively fixedly connected with a pin shaft 45. The outer ends of the pin shafts 45 are respectively rotatably connected with a C-shaped retaining bar 48. The right ends of the C-shaped retaining bars 48 are respectively fitted and installed with the front ends on the right side of the adjacent rectangular bar 41. The catalytic plate fixing mechanism 4 further includes a threaded rod 46 and a dial 47. Threaded holes are respectively provided inside the front ends on the right side of the rectangular bar 41 and at the right ends of the C-shaped retaining bars 48. The inner parts of the threaded holes are respectively threadedly connected with a threaded rod 46. The right ends of the threaded rods 46 are respectively fixedly connected with a dial 47. When replacing the catalytic plate 5, first rotate the dials 47 respectively. The rotation of the dials 47 will respectively drive the threaded rods 46 to rotate and move to the right in the adjacent threaded holes, so that the threaded rods 46 will respectively fall out of the threaded holes. Then rotate the C-shaped retaining bars 48. Then pull out the sliding bars 43 from the inside of the chutes 42 to replace the catalytic plate 5;

[0027] Ultraviolet lamp tube retraction mechanism 8: It includes a T-shaped slide bar 81 and a support plate 82. Symmetrically arranged strip-shaped blocks 6 are provided at the upper end of the box body 1. Slide grooves are respectively formed inside the strip-shaped blocks 6. T-shaped slide bars 81 are respectively slidably connected inside the slide grooves. Support plates 82 are respectively fixedly connected to the lower ends of the T-shaped slide bars 81. Uniformly distributed ultraviolet lamp tubes 9 are respectively provided at the lower ends of the support plates 82. A control switch group 14 is provided at the front end of the left side surface of the box body 1. The input end of the control switch group 14 is electrically connected to an external power supply. The input ends of the ultraviolet lamp tubes 9 are all electrically connected to the output end of the control switch group 14. The ultraviolet lamp tube retraction mechanism 8 further includes a rack 83, a rotating shaft 84, a gear 85 and a motor 86. Support plates 7 are respectively provided at the front ends of the upper surfaces of the strip-shaped blocks 6. Motors 86 are respectively provided at the upper ends of the support plates 7. The motors 86 are respectively fixedly connected to the lower ends of the rotating shafts 84. Gears 85 are respectively fixedly sleeved in the middle parts of the rotating shafts 84. Racks 83 are respectively provided at the inner ends of the T-shaped slide bars 81. The racks 83 are respectively meshed with the adjacent gears 85. The input ends of the motors 86 are all electrically connected to the output end of the control switch group 14. When in long-term use and it is necessary to clean and repair the ultraviolet lamp tubes 9 and replace the catalytic plate 5, first open the box door 3, and then through the regulation of the control switch group 14, the motors 86 operate respectively. The output shafts of the motors 86 will respectively drive the rotating shafts 84 to rotate. The rotation of the rotating shafts 84 will respectively drive the gears 85 to rotate. The rotation of the gears 85 will respectively make the T-shaped slide bars 81 move forward inside the slide grooves through the meshed racks 83, and then will respectively drive the support plates 82 to move forward, so that the ultraviolet lamp tubes 9 extend out of the box body 1, facilitating workers to maintain the ultraviolet lamp tubes 9.

[0028] The working principle of a photocatalytic waste gas treatment device provided by the present utility model is as follows: When performing photocatalytic treatment on waste gas, first connect it to the air inlet 2 on the left through an external connecting pipe, and then the waste gas will be injected into the interior of the box body 1. Then, by adjusting the control switch group 14, the ultraviolet lamp tube 9 operates, and the ultraviolet lamp tube 9 emits ultraviolet light. The ultraviolet light irradiates on the surface of the catalytic plate 5, exciting the generation of strongly oxidizing free radicals. These free radicals can quickly react with the harmful substances in the waste gas and decompose them into harmless substances. Then, the gas of the waste gas will be filtered through the filter cotton 12 again. When the ultraviolet lamp tube 9 needs to be cleaned and maintained and the catalytic plate 5 needs to be replaced after long-term use, first open the box door 3, and then by adjusting the control switch group 14, the motors 86 operate respectively. The output shafts of the motors 86 will drive the rotating shafts 84 to rotate respectively. The rotation of the rotating shafts 84 will drive the gears 85 to rotate respectively. The rotation of the gears 85 will respectively make the T-shaped sliding bars 81 move forward inside the sliding grooves through the engaged racks 83, thereby driving the support plates 82 to move forward respectively, and further making the ultraviolet lamp tube 9 extend out of the interior of the box body 1 so that workers can maintain the ultraviolet lamp tube 9. Then, when replacing the catalytic plate 5, first rotate the dials 47 respectively. The rotation of the dials 47 will drive the threaded rods 46 to rotate and move to the right inside the adjacent threaded holes respectively, so that the threaded rods 46 will respectively fall off the threaded holes. Then rotate the C-shaped stop bars 48, and then pull out the sliding bars 43 from the interior of the sliding grooves 42 to replace the catalytic plate 5.

[0029] It should be noted that for the motors 86 disclosed in the above embodiments, the motors 86 can both be selected as 5I k12RGU-CF. On the control switch group 14, there are switch buttons corresponding to the motors 86 and the ultraviolet lamp tubes 9 one by one for controlling their on / off operations.

[0030] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A photocatalytic waste gas treatment device, characterized in that: It comprises a box body (1), characterized in that it also comprises a catalytic plate fixing mechanism (4) and an ultraviolet lamp tube retracting mechanism (8); The catalytic plate fixing mechanism (4) comprises a rectangular bar (41), a slide groove (42) and a slide bar (43). The middle parts of the upper and lower inner walls of the box body (1) are respectively provided with a rectangular bar (41). The temporal parts of the rectangular bar (41) are respectively provided with a slide groove (42). The interior of the slide groove (42) is respectively slidably connected with a slide bar (43). The catalytic plate (5) is fixedly connected between the inner ends of the two slide bars (43). The ultraviolet lamp tube retracting mechanism (8) comprises a T-shaped slide bar (81) and a support plate (82). The upper end of the box body (1) is provided with a left-right symmetrical strip block (6). The strip blocks (6) are provided with sliding grooves inside. The insides of the sliding grooves are slidably connected with T-shaped slide bars (81). The lower ends of the T-shaped slide bars (81) are fixedly connected with support plates (82). The lower ends of the support plates (82) are provided with uniformly distributed ultraviolet lamp tubes (9).

2. A photocatalytic waste gas treatment device according to claim 1, characterized in that: A control switch group (14) is provided at the front end of the left side of the box body (1), the input end of the control switch group (14) is electrically connected to an external power source, and the input end of the ultraviolet lamp (9) is electrically connected to the output end of the control switch group (14).

3. The photocatalytic exhaust gas treatment device according to claim 1, characterized in that: The catalyst plate fixing mechanism (4) further comprises a small support plate (44), a pin shaft (45) and a C-shaped stop bar (48), the front end of the left side of the rectangular bar (41) is respectively provided with a small support plate (44), the front side of the outer end of the small support plate (44) is respectively fixedly connected with a pin shaft (45), the outer end of the pin shaft (45) is respectively rotatably connected with a C-shaped stop bar (48), and the right end of the C-shaped stop bar (48) is respectively mounted in cooperation with the right front end of the adjacent rectangular bar (41).

4. The photocatalytic exhaust gas treatment device according to claim 3, characterized in that: The catalyst plate fixing mechanism (4) also includes a threaded rod (46) and a thumbwheel (47). The right front end of the rectangular bar (41) and the right end of the C-shaped stop bar (48) are respectively provided with threaded holes, the threaded rods (46) are respectively threadedly connected to the inside of the threaded holes, and the thumbwheel (47) is respectively fixedly connected to the right end of the threaded rod (46).

5. The photocatalytic exhaust gas treatment device according to claim 2, characterized in that: The ultraviolet lamp tube retracting mechanism (8) further comprises a rack (83), a rotating shaft (84), a gear (85) and a motor (86); the front end of the upper surface of the bar block (6) is respectively provided with a support plate (7); the upper end of the support plate (7) is respectively provided with a motor (86); the lower end of the motor (86) is respectively fixedly connected with a rotating shaft (84); the middle part of the rotating shaft (84) is respectively fixedly sleeved with a gear (85); the inner side end of the T-shaped slide bar (81) is respectively provided with a rack (83); the rack (83) is respectively meshed and connected with the adjacent gear (85); the input end of the motor (86) is electrically connected to the output end of the control switch group (14).

6. The photocatalytic waste gas treatment device according to claim 1, characterized in that: The right end of the box body (1) is provided with a front-to-back symmetrical vertical bar (10), the interior of the vertical bar (10) is slidably connected with an I-shaped sliding bar (11), and filter cotton (12) is provided between the inner ends of the I-shaped sliding bar (11).

7. The photocatalytic exhaust gas treatment device according to claim 6, characterized in that: The left and right ends of the box body (1) are respectively provided with air inlets (2); the left and right sides of the front end of the box body (1) are respectively hinged with box doors (3) via hinges; and the right side of the upper end of the box body (1) is hinged with a blocking door (13) corresponding to the filter cotton (12) via a hinge.

Images