A drainage and ventilation pipe filtering and disinfection device

Abstract

The present invention discloses a drainage and breathable pipeline filtering and disinfection device, which comprises a frame, a disinfection box and an activated carbon filtering chamber. An exhaust port is installed on the outer wall of one side of the disinfection box. The activated carbon filtering chamber is installed on the intake pipe of the disinfection box. Equally spaced ultraviolet disinfection and inactivation bins are arranged inside the activated carbon filtering chamber. A plurality of groups of ultraviolet disinfection and inactivation bins are communicated with each other. An ultraviolet disinfection component is arranged in each group of ultraviolet disinfection and inactivation bins. The present invention sterilizes and inactivates the air containing viruses and bacteria multiple times, and enables the main control air plates and the sub-control air plates in a plurality of ultraviolet disinfection and inactivation bins to swing and debug together, so that the gas is concentrated and flows near the ultraviolet lamp tubes, increasing the residence time of the air on the ultraviolet lamp tubes and improving the filtering and disinfection performance of the device for the gas in the drainage pipes of the infectious disease area.

Description

Technical Field

[0001] The present invention relates to the public health technical field of sewage and wastewater drainage pipeline systems in building water supply and drainage, and specifically to a drainage and ventilation pipeline filtration and disinfection device. Background Art

[0002] In a building drainage system, ventilation is as important as drainage. When sewage or wastewater is exhausted in the pipeline system, it needs to exchange air with the atmosphere to balance the pressure. For the ventilation and disinfection of the sewage and wastewater pipes in the infectious departments of medical institutions, it is necessary to strengthen the public health safety of the air environment in medical institutions. The conventional drainage design of medical institutions requires the disinfection treatment of its drainage (sewage and wastewater). In particular, hospital sewage must be disinfected, and the gas discharged from the sewage drainage pipe needs to be filtered and disinfected. Usually, methods such as ultraviolet rays and ozone are used for gas disinfection and filtration. However, during the exhaust disinfection process, with the ultraviolet lamp tube radiation intensity unchanged, due to the too fast gas flow rate, the radiation time of the ultraviolet lamp tube on the gas is short, and most of the gas is often discharged before being irradiated, which results in poor disinfection effect of the device and is difficult to meet the operation requirements of high-intensity and high-load exhaust disinfection. Summary of the Invention

[0003] The purpose of the present invention is to provide a drainage and ventilation pipeline filtration and disinfection device to solve the problem that in the operation process of the exhaust disinfection device, the gas flow rate is fast and most of the gas is difficult to be fully irradiated and disinfected by the ultraviolet lamp tube as mentioned in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A drainage and ventilation pipeline filtration and disinfection device includes a frame, a disinfection box, and an activated carbon filtration chamber. An exhaust port is installed on the outer wall of one side of the disinfection box. The activated carbon filtration chamber is installed on the air inlet pipe of the disinfection box. Equally spaced ultraviolet disinfection and inactivation chambers are arranged inside the activated carbon filtration chamber. A plurality of groups of ultraviolet disinfection and inactivation chambers are communicated with each other. Each group of ultraviolet disinfection and inactivation chambers is provided with an ultraviolet disinfection component. The ultraviolet disinfection component includes an ultraviolet lamp tube installed on the top of the ultraviolet disinfection and inactivation chamber, and a double-channel filter structure is installed inside the ultraviolet disinfection and inactivation chamber on one side of the ultraviolet lamp tube. A negative ion generator is installed on one side of the top of the disinfection box. A sealed long frame is fixed at the top of the disinfection box. A rotary drive member is installed on one side of the top of the sealed long frame. First vertical shafts and second vertical shafts are respectively rotatably installed on both sides of the bottom of each group of ultraviolet disinfection and inactivation chambers. The first vertical shaft and the second vertical shaft are symmetrically structured about the center line of the disinfection box. Main control air plates and sub-control air plates are respectively fixed on the surfaces of the first vertical shaft and the second vertical shaft. Gas diversion gaps are arranged at the ends of the main control air plates and the sub-control air plates;

[0006] A synchronous transmission assembly for driving the first vertical shaft and the second vertical shaft to rotate is installed on the top of each group of the ultraviolet disinfection and inactivation chambers. A sprocket direct-drive structure for driving several groups of synchronous transmission assemblies to work together is arranged inside the sealed long frame. A control box is installed at the bottom end of the frame, and a ballast is installed at the bottom of the control box. The output end of the ballast is electrically connected to the input end of the ultraviolet lamp. A PLC control panel is installed on one side of the surface of the control box, and the output end of the PLC control panel is electrically connected to the ballast and the input end of the rotating drive member.

[0007] Preferably, a plurality of groups of equally spaced zigzag partition plates are fixed to the bottom of the activated carbon filter chamber, a plurality of groups of support plates are fixed to the outer wall of one side of the zigzag partition plate, and a block of honeycomb activated carbon for absorbing gas odor is installed on the top of the support plate.

[0008] Preferably, an air inlet is installed at one end of the activated carbon filter chamber away from the disinfection box, an upper stainless steel inspection port is installed at the top of the activated carbon filter chamber, and a lower stainless steel inspection port is installed at the bottom of the activated carbon filter chamber.

[0009] Preferably, the double-pass filter structure consists of a U-shaped partition, a photocatalyst filter and a high-efficiency particulate filter. The U-shaped partition is fixed to the bottom of the ultraviolet disinfection and inactivation chamber, the photocatalyst filter is fixed to the outer wall on one side of the U-shaped partition, the high-efficiency particulate filter is fixed to the outer wall on the other side of the U-shaped partition, and the photocatalyst filter is opposite to the ultraviolet lamp.

[0010] Preferably, the U-shaped partition is made by welding a group of rectangular bottom columns and two groups of rectangular hollow columns.

[0011] Preferably, the synchronous transmission assembly includes a driven bevel gear that drives the first vertical shaft and the second vertical shaft to rotate, and a transmission shaft that is rotatably installed at the center position of the top of the ultraviolet disinfection and inactivation chamber. The top end of the transmission shaft extends to the interior of the sealing long frame and is interconnected with the sprocket direct drive structure, and an active bevel gear is fixed to the bottom end of the transmission shaft.

[0012] Preferably, the rotary drive member includes a motor seat fixed to the top of the sealing long frame, a reduction motor is fixed to the outer wall of one side of the motor seat, and the main shaft of the reduction motor is fixedly connected to one set of transmission shafts through a coupling.

[0013] Preferably, the driven bevel gear member is a fixed seat and a horizontal shaft. Vertical bearing seats are installed on both sides of the top of the ultraviolet disinfection and inactivation chamber. One end of the horizontal shaft extends to the outside of the vertical bearing seat. The fixed seat is fixed on the top of the ultraviolet disinfection and inactivation chamber. The horizontal shaft is rotatably installed inside the fixed seat. One end of the horizontal shaft extends to the outside of the fixed seat and is fixed with a third driven bevel gear. The third driven bevel gear meshes with the driving bevel gear. The other end of the horizontal shaft is fixed with a second driven bevel gear.

[0014] Preferably, the tops of the first vertical shaft and the second vertical shaft penetrate to the outside of the fixed seat. First driven bevel gears are fixed to the tops of the first vertical shaft and the second vertical shaft. The first driven bevel gear meshes with the second driven bevel gear.

[0015] Preferably, the sprocket direct drive structure is several groups of sprocket bodies and a set of chains. The several groups of sprocket bodies are fixed to the tops of each group of transmission shafts. The chain is wound around the several groups of sprocket bodies.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1) The present invention can sterilize and inactivate the air containing viruses and bacteria multiple times. When the gas passes through multiple ultraviolet disinfection and inactivation chambers for disinfection and inactivation, the gas can be fully purified. Through the mutual cooperation of the rotary drive member, the sprocket direct drive structure, and the synchronous transmission component, the main control air plates and the sub-control air plates in several ultraviolet disinfection and inactivation chambers swing and debug together, so that the gas flows concentratedly near the ultraviolet lamp tubes, increasing the residence time of the air on the ultraviolet lamp tubes, improving the filtering and disinfection performance of the device for the gas in the drainage pipes of the infectious disease area, and thus improving the air safety of the public health environment.

[0018] 2) By providing a structure in which a block-shaped honeycomb activated carbon and an ultraviolet disinfection component cooperate with each other, the air containing viruses and bacteria in the drainage pipes of the infectious disease area enters the activated carbon filtration chamber through the air inlet. The block-shaped honeycomb activated carbon mainly filters out the peculiar smell in the gas. The ultraviolet disinfection component in the ultraviolet disinfection and inactivation chamber sterilizes and inactivates the air containing viruses and bacteria. The air after multiple sterilizations and inactivations is discharged to the outside through the exhaust port for safe emission. When the gas passes through multiple ultraviolet disinfection and inactivation chambers for disinfection and inactivation, the gas can be fully purified, improving the filtering and disinfection performance of the device for the gas in the drainage pipes of the infectious disease area, ensuring the safe emission of the gas in the drainage pipes, and improving the air safety of the public health environment.

[0019] 3) By setting up structures such as ultraviolet lamps and auxiliary control air plates that cooperate with each other, when the gas flows over the ultraviolet lamp, the main control air plate and the auxiliary control air plate are used to centrally guide the gas, so that the gas is concentrated and flows near the ultraviolet lamp, increasing the residence time of the air on the ultraviolet lamp. Without changing the radiation intensity of the ultraviolet lamp, the inactivation and disinfection performance of the ultraviolet lamp on the gas can be improved. During this process, the staff can adjust the diversion gap between the main control air plate and the auxiliary control air plate according to the working intensity of the fan. The higher the working wind speed of the fan, the faster the gas flow speed. At this time, it is necessary to lower the gas diversion gap between the main control air plate and the auxiliary control air plate. During this process, the mutual cooperation of the rotary drive member, the sprocket direct drive structure, and the synchronous transmission assembly enables the main control air plates and the auxiliary control air plates in several ultraviolet disinfection and inactivation chambers to swing and adjust together. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the front view structural schematic diagram of the present invention;

[0021] Figure 2 is the front view sectional structural schematic diagram of the present invention;

[0022] Figure 3 is the side view structural schematic diagram of the present invention;

[0023] Figure 4 is the present invention Figure 2 the enlarged structural schematic diagram at A in;

[0024] Figure 5 is the side view sectional structural schematic diagram of the disinfection box of the present invention;

[0025] Figure 6 is the three-dimensional structural schematic diagram of the bevel gear driven rotary structure of the present invention;

[0026] Figure 7 is the present invention Figure 5 the enlarged structural schematic diagram at B in;

[0027] Figure 8 is the three-dimensional structural schematic diagram of the U-shaped partition of the present invention;

[0028] In the figure: 1, rack; 2, control box; 201, PLC control panel; 202, ballast; 3, disinfection box; 301, exhaust port; 302, negative ion generator; 4, activated carbon filter chamber; 401, upper stainless steel inspection port; 402, lower stainless steel inspection port; 403, air inlet; 404, circular partition board; 405, support plate; 406, block honeycomb activated carbon; 5, sealing long frame; 501, sprocket body; 502, chain; 6, motor seat; 7, reduction motor; 701, main shaft; 8, ultraviolet disinfection and inactivation chamber; 9, U-shaped partition board; 10, photocatalyst filter; 11, high-efficiency particulate filter; 12, ultraviolet lamp; 13, first vertical axis; 14, main air control plate; 15, second vertical axis; 16, auxiliary air control plate; 17, driven bevel gear; 1701, fixed seat; 1702, first driven bevel gear; 1703, horizontal axis; 1704, second driven bevel gear; 1705, third driven bevel gear; 18, transmission shaft; 19, driving bevel gear; 20, vertical bearing seat. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1

[0031] Depend on Figures 1 to 8 As shown, the drainage ventilation pipeline filtering and disinfecting device of the present invention comprises a frame 1, a disinfection box 3 and an activated carbon filter chamber 4, a plurality of groups of equally spaced round-shaped partition plates 404 are fixed to the bottom of the activated carbon filter chamber 4, a plurality of groups of supporting plates 405 are fixed to the outer wall of one side of the round-shaped partition plate 404, and a block honeycomb activated carbon 406 for absorbing gas odor is installed on the top of the supporting plate 405;

[0032] An air inlet 403 is installed at one end of the activated carbon filter chamber 4 away from the disinfection box 3, and the air containing viruses and bacteria in the drainage pipe of the infectious disease area enters the activated carbon filter chamber 4 through the air inlet 403;

[0033] An upper stainless steel inspection port 401 is installed at the top of the activated carbon filter chamber 4, and a lower stainless steel inspection port 402 is installed at the bottom of the activated carbon filter chamber 4. The upper stainless steel inspection port 401 and the lower stainless steel inspection port 402 are provided to facilitate the staff to replace the failed block honeycomb activated carbon 406;

[0034] An exhaust port 301 is installed on the outer wall of one side of the disinfection box 3. The activated carbon filtration chamber 4 is installed on the intake pipe of the disinfection box 3. The gas first contacts and is filtered by several groups of block-shaped honeycomb activated carbon 406. The block-shaped honeycomb activated carbon 406 mainly filters out the odor in the gas, and the preliminarily filtered gas enters the disinfection box 3.

[0035] It should be noted that equidistant ultraviolet disinfection and inactivation chambers 8 are provided inside the activated carbon filtration chamber 4. Several groups of ultraviolet disinfection and inactivation chambers 8 are interconnected. Each group of ultraviolet disinfection and inactivation chambers 8 is provided with an ultraviolet disinfection component. Several ultraviolet disinfection and inactivation chambers 8 are formed in the disinfection box 3. The ultraviolet disinfection components in the ultraviolet disinfection and inactivation chambers 8 sterilize and inactivate the air containing viruses and bacteria. The air after multiple sterilizations and inactivations is discharged to the outside through the exhaust port 301 for safe emission.

[0036] Specifically, the ultraviolet disinfection component includes an ultraviolet lamp tube 12 installed on the top of the ultraviolet disinfection and inactivation chamber 8, and a double-channel filter structure is installed inside the ultraviolet disinfection and inactivation chamber 8 on one side of the ultraviolet lamp tube 12. A negative ion generator 302 is installed on one side of the top of the disinfection box 3. The staff turns on the ballast 202 and the ultraviolet lamp tubes 12 in several groups of ultraviolet disinfection and inactivation chambers 8 through the PLC control panel 201 to work. The gas flows over the ultraviolet lamp tube 12, and the ultraviolet lamp tube 12 irradiates the gas with high-intensity ultraviolet rays to achieve the inactivation function of bacteria and viruses.

[0037] Through the above settings, the air that has been filtered and disinfected three times in the above-mentioned ultraviolet disinfection and inactivation chamber 8 of the present invention is filtered again by the high-efficiency particulate filter 11, that is, the gas in a single ultraviolet disinfection and inactivation chamber 8 is disinfected and filtered three times. When the gas passes through multiple ultraviolet disinfection and inactivation chambers 8 for fire extinguishing and disinfection, the gas can be fully purified, improving the filtering and disinfection performance of the device for the gas in the drainage pipe of the infectious disease area, ensuring the safe emission of the gas in the drainage pipe, and improving the air safety of the public health environment.

[0038] In some embodiments, a sealed long frame 5 can also be fixed to the top end of the disinfection box 3. A rotary drive member is installed on one side of the top end of the sealed long frame 5. The two sides of the bottom of each group of ultraviolet disinfection and inactivation chambers 8 are respectively rotatably installed with a first vertical shaft 13 and a second vertical shaft 15. The first vertical shaft 13 and the second vertical shaft 15 are symmetrically structured with respect to the center line of the disinfection box 3. The main control air plates 14 and the sub-control air plates 16 are respectively fixed on the surfaces of the first vertical shaft 13 and the second vertical shaft 15. Gas diversion gaps are provided at the ends of the main control air plates 14 and the sub-control air plates 16;

[0039] With the above settings, when the gas flows over the ultraviolet lamp tube 12, the main control air plate 14 and the sub-control air plate 16 can centrally guide the gas, causing the gas to flow concentratedly near the ultraviolet lamp tube 12, increasing the residence time of the air on the ultraviolet lamp tube 12. Without changing the radiation intensity of the ultraviolet lamp tube 12, the inactivation and disinfection performance of the ultraviolet lamp tube 12 on the gas can be improved.

[0040] At the top of each ultraviolet disinfection and inactivation chamber 8, a synchronous transmission component for driving the rotation of the first vertical shaft 13 and the second vertical shaft 15 is installed. Inside the sealed long frame 5, a sprocket direct drive structure for driving several groups of synchronous transmission components to work together is provided. At the bottom end of the frame 1, a control box 2 is installed. At the bottom of the control box 2, a ballast 202 is installed. The output end of the ballast 202 is electrically connected to the input end of the ultraviolet lamp tube 12. On one side of the surface of the control box 2, a PLC control panel 201 is installed. The output end of the PLC control panel 201 is electrically connected to the input ends of the ballast 202 and the rotation drive member;

[0041] The staff can adjust the diversion gap between the main control air plate 14 and the sub-control air plate 16 according to the working intensity of the fan. The higher the working wind speed of the fan, the faster the gas flow rate. At this time, it is necessary to lower the gas diversion gap between the main control air plate 14 and the sub-control air plate 16. In this process, through the mutual cooperation of the rotation drive member, the sprocket direct drive structure and the synchronous transmission component, the main control air plates 14 and the sub-control air plates 16 in several ultraviolet disinfection and inactivation chambers 8 swing and adjust together.

[0042] Embodiment 2

[0043] On the basis of Embodiment 1, it is given by Figure 1 , Figure 2 , Figure 3 and Figure 8 . The double-channel filter structure is a U-shaped partition 9, a photocatalyst filter screen 10 and a high-efficiency particulate filter screen 11. The U-shaped partition 9 is made by welding a group of rectangular bottom columns and two groups of rectangular hollow columns.

[0044] The U-shaped partition 9 is fixed at the bottom of the ultraviolet disinfection and inactivation chamber 8. The photocatalyst filter screen 10 is fixed on the outer wall of one side of the U-shaped partition 9. The high-efficiency particulate filter screen 11 is fixed on the outer wall of the other side of the U-shaped partition 9. The photocatalyst filter screen 10 faces the ultraviolet lamp tube 12. The ultraviolet light of the ultraviolet lamp tube 12 irradiates on the photocatalyst filter screen 10. The photocatalyst filter screen 10 uses sunlight, fluorescent lamps, and ultraviolet light as energy sources to excite electrons in the valence band to generate active oxygen and hydroxyl free radicals with extremely strong oxidation effects, oxidize and decompose harmful organic substances, pollutants, odors, bacteria, etc. such as formaldehyde and methylamine into harmless carbon dioxide and water, thereby achieving the purpose of purifying the air and decomposing harmful organic substances, and improving the disinfection and fire extinguishing performance of the device for waste gas.

[0045] Embodiment III

[0046] Based on Embodiment I, it is given by Figure 4 , Figure 5 , Figure 6 and Figure 7 The synchronous transmission assembly includes a driven bevel gear member 17 that drives the first vertical shaft 13 and the second vertical shaft 15 to rotate, and a transmission shaft 18 rotatably installed at the center of the top of the ultraviolet disinfection and inactivation chamber 8. The top end of the transmission shaft 18 extends into the interior of the sealed long frame 5 and is connected to the sprocket direct drive structure. A driving bevel gear 19 is fixed to the bottom end of the transmission shaft 18. When adjusting the gas diversion gaps of the main control air plate 14 and the sub-control air plate 16, the PLC control panel 201 is used to turn on the reduction motor 7 to work, so that the reduction motor 7 first drives the main shaft 701, the transmission shaft 18, and the driving bevel gear 19 to rotate.

[0047] The sprocket direct drive structure includes several groups of sprocket bodies 501 and a group of chains 502. Several groups of sprocket bodies 501 are fixed to the top ends of each group of transmission shafts 18, and the chain 502 is wound around several groups of sprocket bodies 501.

[0048] The rotary drive member 17 includes a motor base 6 fixed to the top end of the sealed long frame 5. A reduction motor 7 is fixed to the outer wall on one side of the motor base 6. The main shaft 701 of the reduction motor 7 is fixedly connected to one group of transmission shafts 18 through a coupling.

[0049] The driven bevel gear member includes a fixed seat 1701 and a horizontal shaft 1703. Vertical bearing seats 20 are installed on both sides of the top of the ultraviolet disinfection and inactivation chamber 8. One end of the horizontal shaft 1703 extends outside the vertical bearing seat 20. The fixed seat 1701 is fixed to the top of the ultraviolet disinfection and inactivation chamber 8. The horizontal shaft 1703 is rotatably installed inside the fixed seat 1701. One end of the horizontal shaft 1703 extends outside the fixed seat 1701 and is fixed with a third driven bevel gear 1705. The third driven bevel gear 1705 meshes with the driving bevel gear 19. A second driven bevel gear 1704 is fixed to the other end of the horizontal shaft 1703.

[0050] The driving bevel gear 19 drives the two groups of third driven bevel gears 1705 that are engaged to rotate, and then the third driven bevel gear 1705, the horizontal shaft 1703, and the second driven bevel gear 1704 rotate;

[0051] The tops of the first vertical shaft 13 and the second vertical shaft 15 penetrate to the outside of the fixed seat 1701, and a first driven bevel gear 1702 is fixed to the tops of the first vertical shaft 13 and the second vertical shaft 15. The first driven bevel gear 1702 and the second driven bevel gear 1704 mesh with each other. The second driven bevel gear 1704 is used to rotate the first driven bevel gear 1702 and the first vertical shaft 13. Finally, the main control air plate 14 swings around the first vertical shaft 13. Similarly, the secondary control air plate 16 is driven to swing.

[0052] The ends of the main control air plate 14 and the secondary control air plate 16 can approach or move away from each other. When the ends of the main control air plate 14 and the secondary control air plate 16 approach each other, the gas diversion gap formed between the main control air plate 14 and the secondary control air plate 16 becomes smaller, causing the gas to flow concentratedly near the ultraviolet lamp tube 12. Furthermore, the ultraviolet lamp tube 12 can fully irradiate the gas, improving the filtering and disinfection effect of the device on the gas.

[0053] Since a sprocket body 501 is installed at the top of each set of transmission shafts 18 in the ultraviolet disinfection inactivation chamber 8, and a chain 502 is installed between multiple sprocket bodies 501, the synchronous transmission assembly in the ultraviolet disinfection inactivation chamber 8 and the main control air plate 14 and the secondary control air plate 16 work synchronously, that is, the gas diversion gap in the ultraviolet disinfection inactivation chamber 8 is uniformly adjusted, providing convenience for the later debugging by the staff.

[0054] When the embodiment of the present application is in use, first, the air containing viruses and bacteria in the drainage pipe of the infectious disease area enters the activated carbon filtration chamber 4 through the air inlet 403. This part of the gas first comes into contact with and is filtered by several groups of block honeycomb activated carbon 406. The block honeycomb activated carbon 406 mainly filters out the odor in the gas. The preliminarily filtered gas enters the disinfection box 3. Several ultraviolet disinfection and inactivation chambers 8 are formed in the disinfection box 3. The ultraviolet disinfection components in the ultraviolet disinfection and inactivation chambers 8 sterilize and inactivate the air containing viruses and bacteria. The air that has been sterilized and inactivated multiple times is discharged to the outdoor for safe emission through the exhaust port 301. During this process, the staff turns on the ballast 202 and the ultraviolet lamps 12 in several groups of ultraviolet disinfection and inactivation chambers 8 through the PLC control panel 201 to work. The gas flows over the ultraviolet lamps 12. The ultraviolet lamps 12 use high-intensity ultraviolet light to irradiate the gas to achieve the inactivation function of bacteria and viruses. At the same time, the ultraviolet light of the ultraviolet lamps 12 irradiates the photocatalyst filter screen 10. The photocatalyst filter screen 10 uses sunlight, fluorescent lamps, and ultraviolet light as energy sources to excite the electrons in the valence band to generate active oxygen and hydroxyl free radicals with extremely strong oxidation effects, which oxidize and decompose harmful organic substances, pollutants, odors, bacteria, etc. such as formaldehyde and methylamine into harmless carbon dioxide and water, so as to achieve the purpose of purifying the air and decomposing harmful organic substances. At this time, the air that has been filtered and disinfected three times in the ultraviolet disinfection and inactivation chamber 8 is filtered again by the high-efficiency particulate filter screen 11, that is, the gas in a single ultraviolet disinfection and inactivation chamber 8 is disinfected and filtered three times. When the gas passes through multiple ultraviolet disinfection and inactivation chambers 8 for fire extinguishing and disinfection, the gas can be fully purified, improving the filtration and disinfection performance of the device for the gas in the drainage pipe of the infectious disease area, ensuring the safe emission of the gas in the drainage pipe, and improving the air safety of the public health environment;

[0055] When the gas flows over the ultraviolet lamps 12, the main control air plate 14 and the sub-control air plate 16 are used to centrally divert the gas, so that the gas is concentrated near the ultraviolet lamps 12, increasing the residence time of the air on the ultraviolet lamps 12. Without changing the radiation intensity of the ultraviolet lamps 12, the inactivation and disinfection performance of the ultraviolet lamps 12 for the gas can be improved. During this process, the staff can adjust the diversion gap between the main control air plate 14 and the sub-control air plate 16 according to the working intensity of the fan. The higher the working wind speed of the fan, the faster the gas flow speed. At this time, it is necessary to lower the gas diversion gap between the main control air plate 14 and the sub-control air plate 16. During this process, the mutual cooperation of the rotary drive member, the sprocket direct drive structure, and the synchronous transmission component enables the main control air plates 14 and the sub-control air plates 16 in several ultraviolet disinfection and inactivation chambers 8 to swing and debug together.

[0056] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0057] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drainage and ventilation pipe filtering and disinfection device, characterized in that: It includes a frame (1), a disinfection chamber (3), and an activated carbon filtration chamber (4). An exhaust port (301) is installed on the outer wall of one side of the disinfection chamber (3). The activated carbon filtration chamber (4) is installed on the intake pipe of the disinfection chamber (3). Inside the activated carbon filtration chamber (4), there are equally spaced ultraviolet disinfection and inactivation chambers (8). A number of groups of ultraviolet disinfection and inactivation chambers (8) are interconnected. In each group of ultraviolet disinfection and inactivation chambers (8), there is an ultraviolet disinfection component. The ultraviolet disinfection component includes an ultraviolet lamp tube (12) installed at the top of the ultraviolet disinfection and inactivation chamber (8), and a double-channel filter structure is installed inside the ultraviolet disinfection and inactivation chamber (8) on one side of the ultraviolet lamp tube (12). On one side of the top of the disinfection chamber (3), a negative ion generator (302) is installed. At the top of the disinfection chamber (3), a sealed long frame (5) is fixed. On one side of the top of the sealed long frame (5), a rotary drive member is installed. On both sides of the bottom of each group of ultraviolet disinfection and inactivation chambers (8), a first vertical shaft (13) and a second vertical shaft (15) are respectively rotatably installed. The first vertical shaft (13) and the second vertical shaft (15) are symmetrically structured with respect to the center line of the disinfection chamber (3). On the surfaces of the first vertical shaft (13) and the second vertical shaft (15), a main control air plate (14) and a sub-control air plate (16) are respectively fixed. At the ends of the main control air plate (14) and the sub-control air plate (16), there are gas diversion gaps. On the top of each group of ultraviolet disinfection and inactivation chambers (8), a synchronous transmission component for driving the first vertical shaft (13) and the second vertical shaft (15) to rotate is installed. Inside the sealed long frame (5), a sprocket direct drive structure for driving a number of groups of synchronous transmission components to work together is provided. At the bottom end of the frame (1), a control box (2) is installed. At the bottom of the control box (2), a ballast (202) is installed. The output end of the ballast (202) is electrically connected to the input end of the ultraviolet lamp tube (12). On one side of the surface of the control box (2), a PLC control panel (201) is installed. The output end of the PLC control panel (201) is electrically connected to the input ends of the ballast (202) and the rotary drive member.

2. The drainage and ventilation pipe filtering and disinfection device according to claim 1, characterized in that: At the bottom of the activated carbon filtration chamber (4), a number of groups of equally spaced return partition plates (404) are fixed. On the outer wall of one side of the return partition plate (404), a number of groups of support plates (405) are fixed. At the top of the support plate (405), a block-shaped honeycomb activated carbon (406) for adsorbing gas odor is installed.

3. The drainage and ventilation pipe filtering and disinfection device according to claim 2, characterized in that: At one end of the activated carbon filtration chamber (4) away from the disinfection chamber (3), an air inlet (403) is installed. At the top of the activated carbon filtration chamber (4), an upper stainless steel inspection opening (401) is installed. At the bottom of the activated carbon filtration chamber (4), a lower stainless steel inspection opening (402) is installed.

4. The drainage and ventilation pipe filtering and disinfection device according to claim 1, characterized in that: The double-channel filter structure is a U-shaped partition (9), a photocatalyst filter screen (10), and a high-efficiency particulate filter screen (11). The U-shaped partition (9) is fixed to the bottom of the ultraviolet disinfection and inactivation chamber (8). The photocatalyst filter screen (10) is fixed to the outer wall on one side of the U-shaped partition (9), and the high-efficiency particulate filter screen (11) is fixed to the outer wall on the other side of the U-shaped partition (9). The photocatalyst filter screen (10) faces the ultraviolet lamp tube (12).

5. The drainage and ventilation pipe filtering and disinfection device according to claim 4, characterized in that: The U-shaped partition (9) is made by welding a group of rectangular bottom columns and two groups of rectangular hollow columns.

6. The drainage and ventilation pipe filtering and disinfection device according to claim 1, characterized in that: The synchronous transmission assembly includes a driven bevel gear part (17) that drives the first vertical shaft (13) and the second vertical shaft (15) to rotate, and a transmission shaft (18) rotatably installed at the center position of the top of the ultraviolet disinfection and inactivation chamber (8). The top end of the transmission shaft (18) extends into the interior of the sealed long frame (5) and is connected to the sprocket direct drive structure. A driving bevel gear (19) is fixed to the bottom end of the transmission shaft (18).

7. The drainage and ventilation pipe filtering and disinfection device according to claim 6, characterized in that: The rotation driving part includes a motor base (6) fixed to the top end of the sealed long frame (5). A reduction motor (7) is fixed to the outer wall on one side of the motor base (6). The main shaft (701) of the reduction motor (7) is fixedly connected to one of the transmission shafts (18) through a coupling.

8. The drainage and ventilation pipe filtering and disinfection device according to claim 6, characterized in that: The driven bevel gear part is a fixed seat (1701) and a horizontal shaft (1703). Vertical bearing seats (20) are installed on both sides of the top of the ultraviolet disinfection and inactivation chamber (8). One end of the horizontal shaft (1703) extends outside the vertical bearing seat (20). The fixed seat (1701) is fixed to the top of the ultraviolet disinfection and inactivation chamber (8). The horizontal shaft (1703) is rotatably installed inside the fixed seat (1701). One end of the horizontal shaft (1703) extends outside the fixed seat (1701) and is fixed with a third driven bevel gear (1705). The third driven bevel gear (1705) meshes with the driving bevel gear (19). A second driven bevel gear (1704) is fixed to the other end of the horizontal shaft (1703).

9. The drainage and ventilation pipe filtering and disinfection device according to claim 8, characterized in that: The top ends of the first vertical shaft (13) and the second vertical shaft (15) penetrate outside the fixed seat (1701). First driven bevel gears (1702) are fixed to the top ends of the first vertical shaft (13) and the second vertical shaft (15). The first driven bevel gears (1702) mesh with the second driven bevel gears (1704).

10. The drainage and ventilation pipe filtering and disinfection device according to any one of claims 6-9, characterized in that: The sprocket direct drive structure is a number of sprocket bodies (501) and a chain (502). The number of sprocket bodies (501) is fixed to the top end of each transmission shaft (18). The chain (502) is wound around the number of sprocket bodies (501).

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