Wastewater ultraviolet disinfection device

Abstract

The utility model discloses a waste water ultraviolet disinfection device, which relates to the technical field of waste water treatment and comprises a disinfection cabinet, a flowing type disinfection cavity and a spraying type disinfection cavity are arranged in the disinfection cabinet, and a plurality of flow guide plates are arranged in the flowing type disinfection cavity at equal intervals from bottom to top. According to the waste water ultraviolet disinfection device, the flowing type disinfection cavity and the spraying type disinfection cavity are arranged, the flowing type disinfection cavity is designed to be shaped like a Chinese character'gong ', waste water can be guided to slowly flow in the flowing type disinfection cavity in a shape like a Chinese character'gong', and the waste water can be disinfected in the spraying type disinfection cavity. The waste water can be irradiated by ultraviolet rays for a longer time, the disinfection effect of the waste water is better, the spraying type disinfection cavity can atomize and spray out the waste water subjected to primary disinfection through the flowing type disinfection cavity, the ultraviolet irradiation surface area is increased, and the fire extinguishing efficiency is improved; through two times of disinfection, the contact between wastewater and ultraviolet rays is more comprehensive, the contact time is longer, and the disinfection is more thorough.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater ultraviolet disinfection device. Background Technology

[0002] Domestic sewage and some industrial wastewater not only contain a large number of bacteria, but also often contain viruses, amoebic cysts, and other pathogens. These cannot be eradicated through conventional wastewater treatment processes. Ordinary biological filters in urban sewage treatment systems can only remove 80-90% of E. coli, and activated sludge processes can only remove 90-95%. To prevent the spread of disease, sewage (wastewater) generally undergoes mechanical and biological secondary treatment, and sometimes still requires disinfection. Common disinfection methods include ultraviolet irradiation, chlorination, ozone, sodium hypochlorite, and chlorine dioxide.

[0003] Ultraviolet (UV) sterilization utilizes the ability of UV light of appropriate wavelengths to destroy the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in microbial cells, causing cell death during growth and / or regeneration, thus achieving sterilization. Existing UV disinfection methods for wastewater often involve directly pumping wastewater into a disinfection channel equipped with UV lamps, such as the continuous flow wastewater UV disinfection device disclosed in patent publication number CN 206069445U, which allows wastewater to flow in an I-shape within the UV disinfection channel. However, disinfection using only this method is not thorough enough, as the wastewater does not fully contact the UV light, resulting in a generally poor disinfection effect. Utility Model Content

[0004] This invention provides a wastewater ultraviolet disinfection device, which has the advantage of more thorough disinfection, thus solving the problem that existing disinfection devices are not thorough enough.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wastewater ultraviolet disinfection device, comprising a disinfection cabinet, wherein a flow-type disinfection chamber and a spray-type disinfection chamber are arranged inside the disinfection cabinet. Multiple guide plates are arranged at equal intervals from bottom to top inside the flow-type disinfection chamber. A water passage is left between one end of each guide plate and the flow-type disinfection chamber. The guide plates divide the flow-type disinfection chamber into an arc-shaped wastewater channel. Each layer of the arc-shaped wastewater channel is equipped with a first ultraviolet device. The most... The lower water inlet is connected to an external water inlet pipe, on which a Y-type filter is installed. A spray pipe is installed inside the spray disinfection chamber. One end of the spray pipe is closed, and the other end is connected to the uppermost water outlet of the flow disinfection chamber. An atomizing nozzle is installed at the lower part of the spray pipe. A second ultraviolet device is installed on the side wall of the spray disinfection chamber. A first air nozzle and a second air nozzle are installed inside the spray disinfection chamber. Both the first and second air nozzles are connected to external air pipes, which are connected to an air pump installed on the outer wall of the disinfection cabinet.

[0006] As a preferred technical solution of this utility model, the Y-type filter includes a Y-shaped tube, a retaining ring, a filter screen cylinder, and a sealing ring. The two ends of the Y-shaped tube are sealed to the inlet pipe flange. The filter screen cylinder is installed inside the bottom opening of the Y-shaped tube. The upper opening of the filter screen cylinder abuts against the retaining ring set inside the Y-shaped tube. A sealing ring is provided between the bottom plate of the filter screen cylinder and the Y-shaped tube. The filter screen cylinder is fixedly connected to the Y-shaped tube by a second screw.

[0007] As a preferred technical solution of this utility model, both the first ultraviolet device and the second ultraviolet device include a transparent sealing cover and an ultraviolet lamp body. The ultraviolet lamp body is fixed to the disinfection cabinet by a first screw, and the transparent sealing cover is disposed outside the ultraviolet lamp body and is bonded to the inner wall of the disinfection cabinet by sealant.

[0008] As a preferred technical solution of this utility model, two adjacent guide plates are staggered.

[0009] As a preferred embodiment of this utility model, the bottom of the disinfection cabinet is equipped with support legs.

[0010] As a preferred embodiment of this utility model, the first air nozzle and the second air nozzle are staggered vertically within the spray-type disinfection chamber, and both the first air nozzle and the second air nozzle are tilted upwards.

[0011] As a preferred embodiment of this utility model, a water outlet pipe is installed on one side of the bottom of the spray disinfection chamber, and an inlet control valve and an outlet control valve are respectively installed on the inlet pipe and the outlet pipe.

[0012] Compared with the prior art, the present invention provides a wastewater ultraviolet disinfection device, which has the following beneficial effects:

[0013] 1. This wastewater ultraviolet disinfection device, by setting up a flowing disinfection chamber and a spray disinfection chamber, the flowing disinfection chamber is designed in an arc shape, which can guide the wastewater to flow slowly in an arc shape within the flowing disinfection chamber, thereby allowing the wastewater to be irradiated by ultraviolet light for a longer period of time, resulting in better disinfection effect. The spray disinfection chamber can atomize and spray the wastewater after the initial disinfection in the flowing disinfection chamber, increasing the surface area for ultraviolet irradiation and improving fire extinguishing efficiency. This utility model, through two disinfection processes, allows the wastewater to have more comprehensive contact with ultraviolet light, longer contact time, and more thorough disinfection.

[0014] 2. This wastewater ultraviolet disinfection device is equipped with a first air nozzle, a second air nozzle, an air pipe, and an air pump. The air pump can deliver high-pressure gas to the first and second air nozzles through the air pipe. After the high-pressure gas is sprayed out from the first and second air nozzles, it forms an upward airflow in the spray disinfection chamber, which is opposite to the direction of water mist falling. This slows down the falling speed of the water mist, allowing the wastewater to stay in the spray disinfection chamber for a longer time and achieve better disinfection effect.

[0015] 3. By setting up a Y-type filter, this utility model can filter impurities in wastewater before it enters the disinfection cabinet, preventing impurities in the wastewater from clogging the atomizing nozzles when they pass through, thereby ensuring the effectiveness of spray disinfection and reducing the probability of device damage. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This utility model Figure 1 A schematic diagram of the internal structure of a Y-type filter.

[0019] In the diagram: 1. Disinfection cabinet; 2. Support leg; 3. Water inlet pipe; 4. Y-type filter; 5. Flow disinfection chamber; 6. Spray disinfection chamber; 7. Guide plate; 8. First ultraviolet device; 9. Transparent sealing cover; 10. Ultraviolet lamp body; 11. Water inlet control valve; 12. Water outlet control valve; 13. Spray pipe; 14. Atomizing nozzle; 15. Second ultraviolet device; 16. First air nozzle; 17. Second air nozzle; 18. Air pipe; 19. Air pump; 20. First screw; 21. Water outlet pipe; 22. Air outlet; 23. Demister; 24. Sealing ring; 25. Y-type tube; 26. Retaining ring; 27. Filter screen cylinder; 28. Second screw. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-3 This utility model discloses a wastewater ultraviolet disinfection device, including a disinfection cabinet 1. The disinfection cabinet 1 contains a flow-type disinfection chamber 5 and a spray-type disinfection chamber 6. Multiple guide plates 7 are evenly spaced from bottom to top within the flow-type disinfection chamber 5. A water passage is left between one end of each guide plate 7 and the flow-type disinfection chamber 5. The guide plates 7 divide the flow-type disinfection chamber 5 into an arc-shaped wastewater channel. Each layer of the arc-shaped wastewater channel is equipped with a first ultraviolet device 8. An inlet pipe 3 is connected to the bottom inlet end of the flow-type disinfection chamber 5, and a Y-type filter 4 is installed on the inlet pipe 3. A spray pipe 13 is installed within the spray-type disinfection chamber 6. One end of the spray pipe 13 is closed, and the other end is connected to the uppermost water outlet of the flow disinfection chamber 5. An atomizing nozzle 14 is installed at the lower part of the spray pipe 13. A second ultraviolet device 15 is installed on the side wall of the spray disinfection chamber 6. A first air nozzle 16 and a second air nozzle 17 are provided inside the spray disinfection chamber 6. Both the first air nozzle 16 and the second air nozzle 17 are connected to an external air pipe 18. The air pipe 18 is connected to an air pump 19 installed on the outer wall of the disinfection cabinet 1. An air outlet 22 is provided on the spray disinfection chamber 6. A demister 23 is provided at the top of the spray disinfection chamber 6 directly opposite the air outlet 22. The demister 23 is provided to prevent sewage from being discharged with the airflow.

[0022] Specifically, the Y-type filter 4 includes a Y-type tube 25, a retaining ring 26, a filter screen cylinder 27, and a sealing ring 24. Both ends of the Y-type tube 25 are sealed to the flanges of the water inlet pipe 3. The filter screen cylinder 27 is installed inside the bottom opening of the Y-type tube 25. The upper opening of the filter screen cylinder 27 abuts against the retaining ring 26 installed inside the Y-type tube 25. A sealing ring 24 is provided between the bottom plate of the filter screen cylinder 27 and the Y-type tube 25. The filter screen cylinder 27 is fixedly connected to the Y-type tube 25 by a second screw 28.

[0023] In this embodiment, the Y-type filter 4 can filter impurities in the wastewater before it enters the disinfection cabinet 1, preventing impurities in the wastewater from clogging the atomizing nozzle 14 when it passes through it, thereby ensuring the effectiveness of spray disinfection and reducing the probability of device damage.

[0024] Specifically, both the first ultraviolet device 8 and the second ultraviolet device 15 include a transparent sealing cover 9 and an ultraviolet lamp body 10. The ultraviolet lamp body 10 is fixed to the disinfection cabinet 1 by the first screw 20. The transparent sealing cover 9 is located outside the ultraviolet lamp body 10 and is bonded to the inner wall of the disinfection cabinet 1 by sealant.

[0025] In this embodiment, the transparent sealing cover 9 can isolate the ultraviolet lamp body 10 from the wastewater, preventing the ultraviolet lamp body 10 from being damaged by water.

[0026] Specifically, the two adjacent guide vanes are staggered.

[0027] In this implementation plan, the staggered arrangement is intended to make the flow disinfection chamber 5 form an arc-shaped wastewater channel.

[0028] Specifically, the bottom of the disinfection cabinet 1 is equipped with support legs 2.

[0029] In this implementation scheme, the support legs 2 make the disinfection cabinet 1 more stable and prevent the bottom of the cabinet from touching the ground and getting damp and damaged.

[0030] Specifically, the first air nozzle 16 and the second air nozzle 17 are staggered vertically within the spray-type disinfection chamber 6, and both the first air nozzle 16 and the second air nozzle 17 are tilted upwards.

[0031] In this embodiment, the first air nozzle 16 and the second air nozzle 17 are designed to be staggered vertically, which can prevent interference between airflows and avoid excessive local airflow that would make it difficult for atomized water droplets to fall.

[0032] Specifically, a water outlet pipe 21 is installed on one side of the bottom of the spray disinfection chamber 6. A water inlet control valve 11 and a water outlet control valve 12 are installed on the water inlet pipe 3 and the water outlet pipe 21, respectively. Flanges are provided at the ports of the water inlet pipe 3 and the water outlet pipe 21, which facilitates the connection of the water inlet pipe 3 and the water outlet pipe 21 to the wastewater pipe.

[0033] In this embodiment, the inlet control valve 11 and the outlet control valve 12 are provided to facilitate personnel control of the inflow and outflow of wastewater.

[0034] The working principle and usage process of this utility model are as follows: During use, wastewater is drawn into the Y-type filter 4 from the inlet pipe 3 by the sewage pump. The Y-type filter 4 filters out particulate impurities in the wastewater. Then, the wastewater enters the flow disinfection chamber 5. In the flow disinfection chamber 5, the wastewater flows slowly upward in an arc shape. During the flow, it is irradiated by the ultraviolet light emitted by the first ultraviolet device 8, achieving initial ultraviolet disinfection. When the wastewater flows to the uppermost wastewater channel, it enters the spray pipe 13 and is then sprayed out by the atomizing nozzle 14 into the spray disinfection chamber 6. At this time, the air pump 19 is turned on to generate a high-pressure airflow. The airflow passes through the air pipe 18 and is sprayed upward through the first air nozzle 16 and the second air nozzle 17, making counter-current contact with the descending atomized water droplets, thereby slowing down the downward speed of the wastewater. This allows the wastewater to be fully irradiated by the ultraviolet light emitted by the second ultraviolet device 15, achieving secondary ultraviolet disinfection. Finally, the wastewater is discharged through the outlet pipe 21.

[0035] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater ultraviolet disinfection device, comprising a disinfection cabinet (1), characterized in that: The disinfection cabinet (1) is equipped with a flow-type disinfection chamber (5) and a spray-type disinfection chamber (6). Multiple guide plates (7) are evenly spaced from bottom to top within the flow-type disinfection chamber (5). A water passage is left between one end of each guide plate (7) and the flow-type disinfection chamber (5). The guide plates (7) divide the flow-type disinfection chamber (5) into a bow-shaped wastewater channel. Each layer of the bow-shaped wastewater channel is equipped with a first ultraviolet device (8). The bottom water inlet of the flow-type disinfection chamber (5) is connected to an inlet pipe (3). A Y-type filter (4) is installed on the inlet pipe (3). A spray pipe (13) is installed inside the spray disinfection chamber (6). One end of the spray pipe (13) is closed, and the other end is connected to the uppermost water outlet of the flow disinfection chamber (5). An atomizing nozzle (14) is installed at the lower part of the spray pipe (13). A second ultraviolet device (15) is installed on the side wall of the spray disinfection chamber (6). A first air nozzle (16) and a second air nozzle (17) are installed inside the spray disinfection chamber (6). Both the first air nozzle (16) and the second air nozzle (17) are connected to an external air pipe (18). The air pipe (18) is connected to an air pump (19) installed on the outer wall of the disinfection cabinet (1).

2. The wastewater ultraviolet disinfection device according to claim 1, characterized in that: The Y-type filter (4) includes a Y-type tube (25), a retaining ring (26), a filter screen cylinder (27), and a sealing ring (24). The two ends of the Y-type tube (25) are sealed to the flange of the water inlet pipe (3). The filter screen cylinder (27) is installed in the bottom opening of the Y-type tube (25). The upper opening of the filter screen cylinder (27) abuts against the retaining ring (26) set in the Y-type tube (25). A sealing ring (24) is provided between the bottom plate of the filter screen cylinder (27) and the Y-type tube (25). The filter screen cylinder (27) is fixedly connected to the Y-type tube (25) by a second screw (28).

3. The wastewater ultraviolet disinfection device according to claim 1, characterized in that: The first ultraviolet device (8) and the second ultraviolet device (15) both include a transparent sealing cover (9) and an ultraviolet lamp body (10). The ultraviolet lamp body (10) is fixed to the disinfection cabinet (1) by a first screw (20). The transparent sealing cover (9) is set outside the ultraviolet lamp body (10) and is bonded to the inner wall of the disinfection cabinet (1) by sealant.

4. The wastewater ultraviolet disinfection device according to claim 1, characterized in that: The two adjacent guide vanes (7) are staggered.

5. The wastewater ultraviolet disinfection device according to claim 1, characterized in that: The bottom of the disinfection cabinet (1) is equipped with support legs (2).

6. The wastewater ultraviolet disinfection device according to claim 1, characterized in that: The first air nozzle (16) and the second air nozzle (17) are staggered vertically within the spray-type disinfection chamber (6), and both the first air nozzle (16) and the second air nozzle (17) are tilted upwards.

7. The wastewater ultraviolet disinfection device according to claim 1, characterized in that: The spray-type disinfection chamber (6) has an outlet pipe (21) installed on one side of its bottom. The inlet pipe (3) and the outlet pipe (21) are respectively equipped with an inlet control valve (11) and an outlet control valve (12).

Images