A UV treatment device suitable for high-salinity wastewater

Abstract

The utility model relates to wastewater treatment technical field discloses a kind of ultraviolet treatment devices suitable for high-salinity wastewater, including cavity, the water inlet is provided in the bottom of cavity, the water outlet is provided in the upper portion of cavity, several ultraviolet tubes are arranged in annular array in cavity, the lower end of ultraviolet tube is fixed through lamp tube inner support, lamp tube inner support is detachably connected in cavity, the upper end of ultraviolet tube is fixedly connected in the top of cavity through waterproof joint, quartz sleeve is sleeved outside ultraviolet tube, and polytetrafluoroethylene tube lining is equipped in the inside of ultraviolet tube.The utility model imports the high-salinity wastewater to be handled into filter assembly, removes large particle solid in high-salinity wastewater after double filtration by coarse filter screen, fine filter screen, then by water inlet is introduced into cavity inside, solve the problem that solid particle in high-salinity wastewater causes damage to ultraviolet tube, and detachable lamp tube inner support design can facilitate the overhaul of ultraviolet tube.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an ultraviolet treatment device suitable for high-salt wastewater. Background Technology

[0002] Ultraviolet (UV) technology has wide applications in wastewater treatment. UV light can damage the DNA and RNA of bacteria, viruses, and other harmful microorganisms, rendering them unable to reproduce and thus achieving disinfection. Furthermore, it can be applied to advanced oxidation processes (AOP) and UV catalytic oxidation. High-salinity wastewater contains high concentrations of inorganic salts and recalcitrant organic matter. These substances inhibit and toxicize traditional biological treatment processes, increasing the difficulty of treatment. UV technology, with its advantages of high efficiency, safety, and environmental friendliness, has become one of the important means of treating high-salinity wastewater. The energy of UV light stimulates oxidants such as hydrogen peroxide and sodium hypochlorite to generate highly reactive free radicals, such as hydroxyl radicals. These free radicals can rapidly oxidize and degrade organic pollutants in the water, converting them into harmless small molecules, thereby purifying the wastewater.

[0003] High-salinity wastewater mainly originates from chemical, pesticide, and dyeing production processes. In actual treatment, due to the complex composition of high-salinity wastewater and the vulnerability of equipment, frequent cleaning, maintenance, and replacement of parts are required, resulting in high operation and maintenance costs for the treatment equipment. Utility Model Content

[0004] To address the problems of existing ultraviolet generators being easily damaged during high-salinity wastewater treatment and the time-consuming and labor-intensive maintenance of ultraviolet lamps, this invention provides an ultraviolet treatment device suitable for high-salinity wastewater.

[0005] This utility model adopts the following technical solution: an ultraviolet (UV) treatment device suitable for high-salinity wastewater, comprising a cavity, an inlet at the bottom of the cavity, an outlet at the top of the cavity, a plurality of UV lamps arranged in a circular array inside the cavity, the lower end of each UV lamp being fixed by an inner lamp support, the inner lamp support being detachably mounted inside the cavity, the upper end of each UV lamp being fixedly connected to the top of the cavity by a waterproof connector, a quartz sleeve being fitted around the outside of each UV lamp, and a polytetrafluoroethylene (PTFE) lamp liner being fitted inside the UV lamp, a filter assembly being provided at the front end of the inlet, the filter assembly comprising a filter chamber, an inner filter screen being provided in the filter chamber, a flow guide being provided in the inner filter screen, the filter chamber being divided into a first filter chamber and a second filter chamber by a partition, the first filter chamber containing a coarse filter screen, and the second filter chamber containing a fine filter screen, the flow guide being rotatably connected inside the filter assembly by a motor drive, and reinforcing ribs being provided on the inner filter screen to prevent deformation of the inner filter screen.

[0006] Furthermore, an air outlet is provided at the top of the cavity, and a support leg is fixedly connected to the bottom of the cavity.

[0007] Furthermore, an ultraviolet light intensity sensor is fixedly connected to one side of the cavity, and a display is provided on one side of the outer wall of the cavity, which is electrically connected to the ultraviolet light intensity sensor.

[0008] Furthermore, an observation window is provided on the opposite side of the water outlet of the cavity, and the observation window is flush with the liquid level of the water outlet.

[0009] Furthermore, the top of the filter assembly is connected to a connecting pipe.

[0010] Furthermore, a bracket base is fixedly installed inside the cavity, and an inlay is provided on the bracket base. The lamp tube bracket is sleeved on the inlay of the bracket base.

[0011] Furthermore, a first sealing strip and a second sealing strip are respectively provided between the embedded body and the inner bracket of the lamp tube.

[0012] Improve the tightness of the installation between the lamp tube bracket and the bracket base.

[0013] Furthermore, the inner side of the bracket base is provided with a number of inner water guide vanes, and the outer side of the bracket base is provided with a number of outer water guide vanes.

[0014] The design of the inner and outer water guide plates optimizes the flow of high-salt wastewater at the inlet, ensuring even distribution, preventing water accumulation, reducing the impact of water hammer on the lamp support and UV lamp, and mitigating the water hammer effect.

[0015] This utility model has the following beneficial effects: 1. The high-salt wastewater to be treated first passes through the filtration assembly. The dual filtration of coarse and fine filters can remove most of the solid particles, reducing the damage to the ultraviolet lamps inside the chamber.

[0016] 2. The ultraviolet lamps are arranged in a single ring, which maximizes the superposition effect of ultraviolet lamps and improves the irradiation effect of ultraviolet rays.

[0017] 3. The inner bracket of the lamp tube adopts a detachable fixing method, which facilitates the installation and maintenance of the ultraviolet lamp tube. The inner bracket of the lamp tube adopts a large-diameter flow area design, which can reduce water inlet resistance and avoid excessive water resistance at the inlet. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the ultraviolet treatment device for high-salt wastewater in this utility model; Figure 2 This is a schematic diagram of the internal structure of the ultraviolet treatment device for high-salt wastewater in this utility model. Figure 3 This is a schematic cross-sectional view of the filter component of the ultraviolet treatment device for high-salt wastewater in this utility model. Figure 4 This is a schematic diagram of the internal support structure of the lamp tube in the ultraviolet treatment device for high-salt wastewater according to this utility model.

[0019] Figure label: 1. Chamber; 2. Filter assembly; 3. Air outlet; 4. Quartz sleeve; 5. Ultraviolet lamp tube; 6. Support leg; 7. Inner support of lamp tube; 8. PTFE lamp tube liner; 9. Connecting pipe; 10. Water inlet; 11. Ultraviolet light intensity sensor; 12. Waterproof connector; 13. Observation window; 14. Water outlet; 15. Display; 16. Inner water guide plate; 17. Outer water guide plate; 18. Support base; 19. Embedded body; 20. First sealing strip; 21. Second sealing strip; 22. Motor; 23. Flow guide; 24. Inner filter screen; 25. Fine filter screen; 26. Partition plate; 27. Reinforcing rib; 28. Coarse filter screen. 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] Reference Figures 1-3 An ultraviolet (UV) treatment device suitable for high-salinity wastewater includes a cavity 1 made of corrosion-resistant stainless steel. The cavity 1 has an inlet 10 at its bottom and an outlet 14 at its top. Several UV lamps 5 are arranged in a circular array inside the cavity 1. The lower ends of the UV lamps 5 are fixed by an inner lamp support 7, and the upper ends are fixedly connected to the top of the cavity 1 by a waterproof connector 12. A quartz sleeve 4 is fitted around the outside of each UV lamp 5, and a polytetrafluoroethylene (PTFE) lamp liner 8 is provided inside the UV lamps 5. The outlet water from the cavity 1... An observation window 13 is provided on the opposite side of the inlet 14. A filter assembly 2 is fixedly connected to one end of the inlet 10. A connecting pipe 9 is connected to the top of the filter assembly 2. The filter assembly 2 includes a filter chamber, in which a filter inner screen 24 is provided. A flow guide 23 is provided in the filter inner screen 24. The filter chamber is divided into a first filter chamber and a second filter chamber by a partition 26. The first filter chamber contains a coarse filter screen 28, and the second filter chamber contains a fine filter screen 25. The flow guide 23 is driven to rotate and connected inside the filter assembly 2 by a motor 22. A reinforcing rib 27 is provided on the filter inner screen to prevent deformation of the filter inner screen. Reference Figure 1 and Figure 2The cavity 1 has an air outlet 3 at the top and a support leg 6 fixedly connected to the bottom. An ultraviolet light intensity sensor 11 is fixedly connected to one side of the cavity 1, and a display 15 is fixedly connected to one side of the outer wall of the cavity 1. This sensor can monitor the intensity of ultraviolet light in real time and display the ultraviolet radiation dose in real time on the display 15. When the ultraviolet light intensity drops to the threshold, an alarm signal is issued to ensure that the ultraviolet lamp tube always maintains efficient ultraviolet output. The observation window 13 is flush with the liquid surface of the water outlet 14. Through the observation window 13, it is possible to see whether the ultraviolet lamp tube 5 is working properly, such as whether the lamp tube is lit and whether the light emission is uniform. If the lamp tube malfunctions or is abnormal, such as the lamp tube is broken, the light emission intensity is weakened, or it does not emit light, it can be detected in time and corresponding measures can be taken to avoid affecting the treatment effect. Furthermore, it is possible to observe the cleanliness of the quartz sleeve 4 and promptly detect whether there is dirt, scale, or biofilm on the surface of the sleeve.

[0022] Reference Figure 1 and Figure 4 The lamp tube inner bracket is detachably installed in the cavity, and a bracket base 18 is fixedly installed in the cavity. An inlay 19 is provided on the bracket base 18. The lamp tube inner bracket 7 is sleeved on the inlay 19 of the bracket base 18. A first sealing strip 20 and a second sealing strip 21 are respectively provided between the inlay 19 and the lamp tube inner bracket 7. Several inner water guide plates 16 are provided on the inner side of the bracket base 18, and several outer water guide plates 17 are provided on the outer side of the bracket base. This can significantly reduce water flow resistance, make the water flow smoother at the inlet, and extend the service life of the device.

[0023] Working principle: High-salinity wastewater enters the filter chamber of filter assembly 2 through connecting pipe 9. A partition divides the filter chamber into a first filter chamber and a second filter chamber. The high-salinity wastewater enters through the coarse filter screen in the first filter chamber. The motor drives the guide component to rotate, which carries the high-salinity wastewater through the coarse filter screen into the second filter chamber. After a second filtration through fine filter screen 25, the high-salinity wastewater flows out. The high-salinity wastewater treated by filter assembly 2 enters the chamber 1 through inlet 10, adopting a "bottom-in, top-out" flow pattern to ensure sufficient residence time for the high-salinity wastewater in the ultraviolet irradiation zone. After entering the cavity, the inner and outer guide strips on both sides of the support base can effectively disperse the water flow and avoid resistance at the water inlet. The large-diameter flow area structure of the lamp tube support 7 can increase the water flow rate. The lamp tube is fixed to the lamp tube support 7 by the polytetrafluoroethylene lamp tube liner 8 in a single ring arrangement to ensure the maximum light superposition effect. The ultraviolet lamp tube 5 is covered with a quartz sleeve 4, which can ensure the high transmittance of ultraviolet light and prevent high-salt wastewater from directly contacting the lamp tube. The high-salt wastewater, which has been fully disinfected by ultraviolet light, is discharged from the outlet 14. An ultraviolet light intensity sensor 11 is installed inside the cavity 1 to monitor the ultraviolet light intensity in real time. After being fully treated by ultraviolet light, the high-salt wastewater flows out from the outlet 14. The observation window 13 is flush with the liquid surface, which makes it convenient for operators to monitor the liquid level and equipment operation status in real time. If the high-salt wastewater contains volatile gases, they can be discharged from the top vent. When it is necessary to repair the ultraviolet lamp tube, the inner support of the lamp tube can be disassembled to separate the inner support of the lamp tube from the support base. The structural design of the disassembled inner support of the lamp tube improves the maintenance efficiency of the equipment.

Claims

1. An ultraviolet treatment device suitable for high-salinity wastewater, comprising a cavity (1), characterized in that: The cavity (1) has an inlet (10) at the bottom and an outlet (14) at the top. Several ultraviolet lamps (5) are arranged in a circular array inside the cavity (1). The lower end of the ultraviolet lamps (5) is fixed by an inner lamp support (7). The inner lamp support (7) is detachably installed inside the cavity (1). The upper end of the ultraviolet lamps (5) is fixedly connected to the top of the cavity (1) by a waterproof connector (12). A quartz sleeve (4) is fitted on the outside of the ultraviolet lamps (5). A polytetrafluoroethylene lamp liner is provided on the inside of the ultraviolet lamps (5). (8) The inlet (10) is provided with a filter assembly (2) at the front end. The filter assembly (2) includes a filter chamber. The filter chamber is provided with a filter inner screen (24). The filter inner screen (24) is provided with a flow guide (23). The filter chamber is divided into a first filter chamber and a second filter chamber by a partition (26). The first filter chamber is a coarse filter screen (28). The second filter chamber is a fine filter screen (25). The flow guide (23) is driven to rotate inside the filter assembly (2) by a motor (22). The filter inner screen is provided with reinforcing ribs (27) to prevent deformation of the filter inner screen.

2. The ultraviolet treatment device for high-salinity wastewater according to claim 1, characterized in that: The cavity (1) is provided with an air outlet (3) at the top and a support leg (6) is fixedly connected to the bottom of the cavity (1).

3. The ultraviolet treatment device for high-salinity wastewater according to claim 1, characterized in that: An ultraviolet light intensity sensor (11) is fixedly connected to one side of the cavity (1), and a display (15) is provided on one side of the outer wall of the cavity (1) and electrically connected to the ultraviolet light intensity sensor.

4. The ultraviolet treatment device for high-salinity wastewater according to claim 1, characterized in that: An observation window (13) is provided on the opposite side of the outlet (14) of the cavity (1), and the observation window (13) is flush with the liquid level of the outlet (14).

5. The ultraviolet treatment device for high-salinity wastewater according to claim 1, characterized in that: The top of the filter assembly (2) is connected to the connecting pipe (9).

6. The ultraviolet treatment device for high-salinity wastewater according to claim 1, characterized in that: A bracket base (18) is fixedly installed inside the cavity, and an inlay (19) is provided on the bracket base (18). The lamp tube bracket (7) is sleeved on the inlay (19) of the bracket base (18).

7. The ultraviolet treatment device for high-salinity wastewater according to claim 6, characterized in that: A first sealing strip (20) and a second sealing strip (21) are respectively provided between the inlay (19) and the lamp tube inner bracket (7).

8. The ultraviolet treatment device for high-salinity wastewater according to claim 6, characterized in that: The support base (18) has a number of inner water guide plates (16) on its inner side and a number of outer water guide plates (17) on its outer side.

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