Water seal overflow device for an ozone treatment basin

Abstract

The utility model relates to a water seal overflow device for ozone treatment pool, including first overflow weir, guide pipe, tail gas treatment subassembly and overflow liquid treatment subassembly, first overflow weir is connected with guide pipe, guide pipe is connected with tail gas treatment subassembly and overflow liquid treatment subassembly respectively, first overflow weir sets up at the top of ozone treatment pool, first overflow weir includes overflow pipe, inner water seal weir wall and outer overflow weir wall, outer overflow weir wall is the groove -like structure, inner water seal weir wall sets up in the groove body of outer overflow weir wall and is connected with both ends of its groove body, will groove body separate into inner overflow chamber and outer overflow channel, the top of outer overflow channel communicates with ozone treatment pool, the both sides of the bottom of inner water seal weir wall form water seal area, inner overflow chamber communicates with guide pipe through overflow pipe, the utility model can solve the technical problem that the overflow device set up in the ozone treatment pool of present -day cannot satisfy the overflow demand simultaneously, effectively prevent ozone leak in ozone treatment pool.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to a water seal overflow device for an ozone treatment tank. Background Technology

[0002] Ozone, as a strong oxidant, is widely used in water treatment systems, wastewater treatment systems, and advanced oxidation processes. In water treatment processes, ozone treatment tanks, such as ozone contact tanks and ozone oxidation tanks, are the core structures for the reaction between ozone and water. To ensure the safe operation of these tanks and prevent overflow in case of excessive influent or drainage blockage, overflow facilities must be installed.

[0003] Currently, common overflow systems typically involve pre-installing an overflow pipe in the pool wall, with its inlet slightly lower than the top of the pool. When the liquid level in the pool exceeds a set height and reaches the overflow pipe, excess water can be discharged through the overflow pipe. However, this traditional overflow method has a significant drawback: ozone gas leakage.

[0004] Because ozone is poorly soluble in water, and unreacted exhaust gases are often present in the contact tank, the space above the liquid surface is filled with ozone-containing gas. When water flows out through the overflow pipe, it creates a negative pressure at the overflow pipe inlet, acting like a pump and drawing ozone gas from the top of the tank. This causes the ozone-containing exhaust gases to escape from the overflow pipe along with the water flow. This can cause the following problems:

[0005] 1. Safety hazards: Ozone buildup in enclosed or poorly ventilated workshops can pose serious safety hazards.

[0006] 2. Environmental pollution and health hazards: As a toxic gas, ozone, when directly leaked into the atmosphere, will not only harm the health of operators in the workshop, but may also pollute the surrounding environment.

[0007] 3. Ozone waste: Unreacted ozone in the treatment tank is directly discharged, which not only reduces the utilization rate of ozone, but also increases the operating cost of the ozone treatment system.

[0008] Therefore, there is an urgent need in the field for a device that can effectively prevent ozone leakage without affecting its normal overflow function. Utility Model Content

[0009] (a) Technical problems to be solved

[0010] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a water seal overflow device for ozone treatment ponds, which solves the technical problem that the overflow devices installed in existing ozone treatment ponds cannot effectively prevent ozone leakage in ozone treatment ponds while meeting the overflow requirements.

[0011] (II) Technical Solution

[0012] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0013] This utility model embodiment provides a water seal overflow device for an ozone treatment tank, characterized in that it includes:

[0014] A first overflow weir for discharging overflow liquid, a guide pipe connected to the first overflow weir for guiding the flow of overflow liquid discharged from the first overflow weir, a tail gas treatment component connected to the guide pipe for harmlessly treating the gas discharged through the first overflow weir, and an overflow liquid treatment component connected to the guide pipe for treating overflow liquid.

[0015] The first overflow weir is located at the top of the inner wall of the ozone treatment tank; the first overflow weir includes an overflow pipe for connecting the first overflow weir and the guide pipe, an inner water seal weir wall, and an outer overflow weir wall; the bottom of the outer overflow weir wall extends towards the inner wall of the ozone treatment tank and forms a water overflow cavity with the inner wall of the ozone treatment tank; the inner water seal weir wall is located inside the water overflow cavity; the inner water seal weir wall divides the water overflow cavity into an inner overflow cavity and an outer overflow channel; the top of the inner overflow cavity is sealed, and the bottom is connected to the bottom of the outer overflow channel; the top of the outer overflow channel is connected to the interior of the ozone treatment tank; the inner overflow cavity is connected to the guide pipe through the overflow pipe;

[0016] The bottom of the inner overflow cavity, which connects to the outer overflow channel, is a water-sealed area.

[0017] Optionally, the inner overflow cavity is connected to the ozone treatment pool only through the outer overflow channel; the vertical height of the lowest point of the connection between the overflow pipe and the inner overflow cavity is lower than the connection between the top of the outer overflow channel and the ozone treatment pool; the height of the top of the inner overflow cavity does not exceed the height of the outer overflow channel; after the water seal area is formed, its top is higher than the bottom of the inner water seal weir wall.

[0018] Optionally, the inner water seal weir wall located inside the outer overflow weir wall and the inner wall of the ozone treatment tank are enclosed to form an inner overflow cavity that communicates with the bottom of the outer overflow channel.

[0019] The top of the inner water seal weir extends toward the inner wall of the ozone treatment tank, sealing the top of the inner overflow chamber; both ends of the inner water seal weir and the outer overflow weir are connected to the inner wall of the ozone treatment tank.

[0020] Optionally, the exhaust gas treatment assembly may include ozone adsorption materials and / or ozone catalytic materials.

[0021] Optionally, the overflow weir wall can be an arc-shaped or polygonal structure, and 7 is an arc-shaped or polygonal structure.

[0022] Optionally, the guide pipe includes an air intake pipe and a drain pipe; the outlet of the overflow pipe is connected to the air intake pipe; and the top of the air intake pipe is connected to the exhaust gas treatment assembly.

[0023] Optionally, the bottom of the air intake pipe is connected to the intake pipe via a second overflow weir, and the intake pipe is connected to the overflow liquid treatment component; the exhaust gas treatment component is connected to the outside.

[0024] Optionally, the diameter of the ventilator tube is larger than the diameter of the overflow tube.

[0025] Optionally, the second overflow weir includes a first weir wall and a second weir wall; the bottom of the first weir wall extends toward the diversion pipe and encloses it to form a second water overflow cavity; the second weir wall is disposed in the first weir wall, dividing the second water overflow cavity into a receiving channel and an overflow channel.

[0026] Optionally, the bottom of the receiving channel is connected to the bottom of the overflow channel, forming a second water seal area on both sides of the bottom of the second weir wall; the receiving channel is connected to the bottom of the air intake pipe; the top of the overflow channel is connected to the overflow liquid treatment component through the drainage pipe; the first weir wall is connected to the pipe walls of the air intake pipe and the drainage pipe respectively; and the second weir wall is connected to the pipe wall of the air intake pipe.

[0027] (III) Beneficial Effects

[0028] The beneficial effects of this utility model are as follows: The water seal overflow device for ozone treatment tank of this utility model adopts an inner water seal weir wall and an outer overflow weir wall to form a water seal structure with two chambers (inner overflow chamber and outer overflow channel). Compared with the prior art, it can physically isolate the ozone gas at the top of the tank during the overflow process, effectively avoiding the problem of ozone leakage when the liquid overflows in the ozone treatment tank.

[0029] Meanwhile, since this utility model also sets up an exhaust gas treatment component to cooperate with the water seal set in the first overflow weir, the first overflow weir of this utility model not only has the function of liquid overflow, but also the function of gas overpressure release. When the gas pressure in the ozone treatment tank is too high, the gas inside can automatically break through the water seal to release pressure and be safely treated through the exhaust gas treatment component. This can further simplify the structure of the ozone treatment tank and improve its safety.

[0030] Furthermore, the exhaust gas treatment component can further and completely adsorb ozone that diffuses through liquid dissolution, further improving the safety of the water seal of this invention, completely avoiding pollution problems that may be caused by ozone leakage, and achieving harmlessness.

[0031] Furthermore, in this invention, the water seal in the first overflow weir can be continuously and automatically updated and maintained during the normal operation and overflow of the ozone treatment pool. Even after overpressure release, it can automatically recover as the water level recovers. The entire process does not require external power to maintain, operates reliably for a long time, and is relatively simple to maintain. Attached Figure Description

[0032] Figure 1 This is a cross-sectional structural schematic diagram of the water seal overflow device for an ozone treatment tank according to Embodiment 1 of this utility model;

[0033] Figure 2 This is a schematic diagram of the vertical cross-sectional structure of the water seal overflow device for an ozone treatment pond at the first overflow weir in Embodiment 1 of this utility model.

[0034] Figure 3 This is a schematic diagram of the horizontal cross-sectional structure of the water seal overflow device for an ozone treatment pond at the first overflow weir in Embodiment 1 of this utility model.

[0035] Figure 4 This is a schematic diagram of the horizontal cross-sectional structure of the water seal overflow device for an ozone treatment tank in Embodiment 1 of this utility model at the connection between the guide pipe and the overflow liquid treatment component.

[0036] Figure 5 This is a cross-sectional structural schematic diagram of the water seal overflow device for an ozone treatment tank according to Embodiment 2 of this utility model;

[0037] Figure 6 This is a schematic diagram of the vertical cross-sectional structure of the water seal overflow device for an ozone treatment pond at the second overflow weir in Embodiment 2 of this utility model.

[0038] [Explanation of Labels in the Attached Image]

[0039] 1: First overflow weir; 2: Guide pipe; 3: Exhaust gas treatment component; 4: Overflow liquid treatment component; 5: Ozone treatment tank; 6: Overflow pipe; 7: Inner water seal weir wall; 8: Outer overflow weir wall; 9: Inner overflow cavity; 10: Outer overflow channel; 11: Water seal area; 12: Air intake pipe; 13: Drainage pipe; 14: Second overflow weir; 15: First weir wall; 16: Second weir wall; 17: Receiving passage; 18: Overflow passage; 19: Second water seal area. Detailed Implementation

[0040] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper," "lower," "left," "right," "front," and "rear" are used interchangeably with other directional terms. Figure 1 The orientation is used as a reference.

[0041] Example 1:

[0042] Reference Figure 1This embodiment provides a water seal overflow device for an ozone treatment tank 5, comprising a first overflow weir 1 for sealing the fluid (including gases such as ozone and air, and liquids such as water) in the ozone treatment tank 5 with water and overflowing when there is excess fluid, discharging the overflow liquid; a guide pipe 2 for guiding the fluid (including overflow liquid and gas) overflowing from the first overflow weir 1; a tail gas treatment component 3 for harmlessly treating the overflow gas in the ozone treatment tank 5; and an overflow liquid treatment component 4 for treating (mainly collecting) the overflow liquid in the ozone treatment tank 5. The first overflow weir 1 is connected to the guide pipe 2. The guide pipe 2 is connected to the tail gas treatment component 3 and the overflow liquid treatment component 4, respectively. The first overflow weir 1 is located at the top of the ozone treatment tank 5, and its specific installation height is determined according to the actual overflow height required.

[0043] Among them, reference Figure 2-3 The first overflow weir 1 is located at the top of the inner wall of the ozone treatment tank 5. The first overflow weir 1 includes an overflow pipe 6 for connecting the first overflow weir 1 and the guide pipe 2, an inner water seal weir wall 7, and an outer overflow weir wall 8.

[0044] Both ends and the bottom of the external overflow weir 8 extend towards the inner wall of the ozone treatment tank 5, forming a water overflow cavity with the inner wall of the ozone treatment tank 5. For ease of understanding, the external overflow weir 8 can be regarded as a trough-shaped structure extending from the inner wall of the ozone treatment tank 5 towards its center. That is, the external overflow weir 8 is a flange extending from the inner wall of the ozone treatment tank 5 towards its center. The edge of the flange bends upward into an L-shape, forming a trough-shaped structure with the inner wall of the ozone treatment tank 5, thus forming a water overflow cavity.

[0045] Reference Figure 2 The inner water seal weir wall 7 is located inside the water overflow cavity, or more specifically, inside the outer overflow weir wall. The inner water seal weir wall 7 divides the water overflow cavity into an inner overflow cavity 9 and an outer overflow channel 10. The top of the inner overflow cavity 9 is sealed, and its bottom is connected to the bottom of the outer overflow channel 10. The top of the outer overflow channel 10 is connected to the interior of the ozone treatment tank 5. The inner overflow cavity 9 is connected to the guide pipe 2 via the overflow pipe 6.

[0046] Among them, reference Figure 2 The top of the inner overflow chamber 9 is sealed, and it is connected to the ozone treatment tank 5 only through the outer overflow channel 10. This prevents ozone and other gases in the ozone treatment tank 5 from entering the top of the inner overflow chamber 9.

[0047] Reference Figure 2The top of the overflow channel 10 is connected to the ozone treatment tank 5, allowing it to receive and collect the fluid overflowing from the ozone treatment tank 5. The bottom of the inner overflow chamber 9 is connected to the bottom of the outer overflow channel 10, forming a water seal area 11, or in other words, water seal areas 11 are formed on both sides of the bottom of the inner water seal weir wall 7. Water is provided in the water seal area 11, which can form a water seal between the inside of the inner overflow chamber 9 and the gas space at the top of the ozone treatment tank 5.

[0048] Reference Figure 2 After the water seal is formed, ozone gas cannot effectively pass through the water seal into the inner overflow cavity 9. The top of the inner overflow cavity is also a sealed structure. Under the action of the water seal in the water seal area 11, the inner overflow cavity 9 is separated from the gas space at the top of the ozone treatment tank 5. Regardless of whether the ozone treatment tank 5 overflows, the bottom of the inner water seal weir wall 7 will always be submerged in water, forming a reliable hydraulic seal zone that effectively and permanently separates the ozone in the ozone treatment tank 5 from the inner overflow cavity 9, preventing ozone from overflowing from the ozone treatment tank 5.

[0049] Simultaneously, when the gas pressure in the ozone treatment tank 5 abnormally increases, causing overpressure, the higher gas pressure can overcome the static pressure of the water seal, pushing the water overflow pipe 6 in the water seal area 11 to discharge, forming an airflow channel. The overflowing airflow, under the action of the guide pipe 2, enters the exhaust gas treatment component 3 to treat the overflowing ozone, ensuring safe discharge and thus playing a role in safe pressure relief. After pressure relief, the tank water in the ozone treatment tank 5 will automatically replenish the water seal area 11 during overflow, restoring the water seal seal. Of course, the water seal can also be quickly restored by automatically raising the water level after overpressure.

[0050] The top of the inner overflow chamber 9 is connected to the guide pipe 2 through the overflow pipe 6. When the liquid in the ozone treatment tank 5 enters the outer overflow channel 10, it pushes the water in the water seal into the inner overflow chamber 9, and then into the overflow pipe 6, and further flows to the overflow liquid treatment component 4.

[0051] Reference Figure 2The vertical height of the lowest point at the connection between the overflow pipe 6 and the inner overflow cavity 9 is lower than the vertical height of the connection between the top of the outer overflow channel 10 and the ozone treatment tank 5, but higher than the bottom of the inner water seal weir wall 7. This ensures that in the event of an overflow, the liquid in the ozone treatment tank 5 must first pass over the outer overflow weir wall 8, enter the outer overflow channel 10, and continuously flow into the water seal area 11. Then, under the action of gravity and water pressure (similar to the principle of communicating vessels, the water level in the inner overflow cavity 9 and the outer overflow channel 10 tends to be consistent), the water in the water seal area 11 is pushed through the bottom of the inner water seal weir wall 7 (whose top is not higher than the top of the outer overflow wall), into the inner overflow cavity 9, and finally discharged into the guide pipe 2 from the higher overflow pipe 6. The overflowing liquid is connected to the water seal. During the flow of liquid, no water will be mixed in. Because the connection between the overflow pipe 6 and the inner overflow cavity 9 is relatively high, it can ensure that during the overflow process, the water flow will actively maintain and refresh the water in the water seal area 11, avoiding the situation where gas directly short-circuits into the inner overflow cavity 9 (i.e., the water seal position is too low, causing the water seal to fail, and the gas enters the inner overflow cavity 9 from the top of the water seal, bypassing the water seal, and through the gap between the water seal and the inner water seal weir wall 7, thus strengthening the reliability of the water seal seal).

[0052] This embodiment provides a water seal overflow device for an ozone treatment tank 5. By using an inner water seal weir wall 7 and an outer overflow weir wall 8 to form a water seal structure with two chambers (inner overflow chamber 9 and outer overflow channel 10), compared with the prior art, it can physically isolate the ozone gas at the top of the tank during the overflow process, effectively avoiding the problem of ozone leakage when the liquid overflows in the ozone treatment tank 5.

[0053] Meanwhile, since the embodiment also sets the exhaust gas treatment component 3 to cooperate with the water seal set in the first overflow weir 1, the first overflow weir 1 of this utility model has the function of liquid overflow and gas overpressure release. When the gas pressure in the ozone treatment tank 5 is too high, the gas inside can automatically break through the water seal to release pressure and be safely treated by the exhaust gas treatment component 3. This can further simplify the structure of the ozone treatment tank 5 and improve its safety.

[0054] Furthermore, the exhaust gas treatment component 3 can further and completely adsorb ozone that diffuses through liquid dissolution, further improving the safety of the water seal of this utility model, completely avoiding pollution problems that may be caused by ozone leakage, and achieving complete harmlessness.

[0055] In addition, in this embodiment, the water seal can be automatically updated and maintained during the normal operation and overflow of the ozone treatment tank 5. Even after the overpressure is released, it can automatically recover as the water level recovers. The whole process does not require external power to maintain, the operation is reliable for a long time, and the maintenance is relatively simple.

[0056] After the water seal area 11 is formed, its top is higher than the bottom of the inner water seal weir wall 7. A higher water level is required to maintain the sealing effect of the water seal area 11. This further ensures that after the overflow ends, the water remaining in the water seal area 11 has a sufficiently high height to form a new water seal, ensuring the long-term existence of the water seal and ensuring that the water seal has sufficient ability to prevent gas penetration, thus avoiding problems such as water seal failure.

[0057] The height of the top of the inner overflow chamber 9 shall not exceed the height of the outer overflow channel 10. Ensure that the sealing structure at the top of the inner overflow chamber 9 and the position of the overflow pipe 6 are always below the highest possible liquid level in the pool (i.e., the height of the top of the outer overflow channel 10). Ensure the smooth flow of overflow liquid and ensure that the inner overflow chamber 9 does not experience excessive static pressure, ensuring the long-term integrity and safety of its top sealing structure.

[0058] Reference Figure 2-3 The inner water seal weir 7, located inside the outer overflow weir 8, surrounds the inner wall of the ozone treatment pool (5) to form an inner overflow cavity 9 that is connected to the bottom of the outer overflow channel 10.

[0059] Both ends and the top of the inner water seal weir 7 extend toward the inner wall of the ozone treatment tank 5, sealing the top of the inner overflow chamber 9. Both ends of the inner water seal weir 7 and the outer overflow weir 8 are connected to the inner wall of the ozone treatment tank 5.

[0060] In this design, the inner water seal weir wall 7 and the outer overflow weir wall 8 are directly connected to the ozone treatment tank 5 to form a single unit, enclosing the water overflow cavity and the inner overflow cavity 9. This connection method, which uses the inner wall (tank body) of the ozone treatment tank 5 as part of the water overflow cavity and the inner overflow cavity 9, and directly connects the inner water seal weir wall 7 and the outer overflow weir wall 8 to it for sealing, saves materials, improves the stability and sealing effect of the first overflow weir 1 structure, making its structure more robust, avoiding additional sealing connections, and reducing potential leakage points at the first overflow weir 1. Of course, in actual use, the first overflow weir 1 can be set at any position on the top of the ozone treatment tank 5, and does not necessarily have to be set on the inner wall, but this may lead to material waste and reduced stability and sealing performance of the first overflow weir.

[0061] The opening of the overflow pipe 6 is located inside the inner overflow cavity 9, and the overflow liquid overflowing from the bottom of the inner overflow cavity 9 can be discharged from the inner overflow cavity through the overflow pipe 9.

[0062] The inner water seal weir wall 7 is set vertically along the axial direction of the channel of the outer overflow weir wall 8, which facilitates processing and ensures smooth water flow. The outer overflow weir wall 8 is an arc-shaped or polygonal structure, and the cross-sectional shape of the water overflow cavity it forms is a polygon (such as a rectangle) or arc with an opening (at the outer overflow channel 10).

[0063] In this embodiment, preferably, referring to Figure 2-3 The first overflow weir 1 adopts an arc-shaped structure, namely, the outer overflow weir wall 8 and the inner water seal weir wall 7, both with arc-shaped structures. The edge of the arc-shaped outer overflow weir wall 8, or the outer perimeter of the top of the outer overflow channel 10, has a longer length. During overflow, the water flow can enter the outer overflow channel 10 evenly over a longer distance, reducing the likelihood of dead zones. This improves the water intake capacity of the first overflow weir 1 and makes the internal water flow more stable, further preventing ozone leakage.

[0064] In this embodiment, specifically, refer to... Figure 2-3 The external overflow weir wall 8 is a weir wall structure with sealed ends, an arc-shaped outer perimeter, and an L-shaped cross-section. One side of it is connected to the side wall of the ozone treatment tank 5, forming a U-shaped trough structure. The internal water seal weir wall is also a weir wall structure with an arc-shaped outer perimeter and an L-shaped cross-section. One side of it is connected to the side wall of the ozone treatment tank 5, and both ends are fixedly connected to the two ends of the external overflow weir wall 8, forming an internal overflow cavity 9.

[0065] Reference Figure 4 The overflow treatment component 4 can adopt any structure such as a conventional collection pool or collection tank. These structures can be open or sealed, as long as they can collect the overflow liquid flowing out of the guide pipe 2.

[0066] Reference Figure 4 Preferably, in this embodiment, the overflow liquid adopts a conventional collection tank structure, and the bottom of the guide pipe 2 is connected to the bottom of the overflow liquid treatment component 4, or in other words, the outlet of the guide pipe 2 is immersed in the overflow liquid collected in the overflow liquid treatment component 4. The overflow liquid in the overflow liquid treatment component 4 is used to seal the outlet of the guide pipe 2, further avoiding the problem of ozone and other gases that may be directly leaked to the outside from the guide pipe 2, especially the guide pipe 2 connected to the overflow liquid treatment component 4 with an open collection tank or other similar structures, thereby further improving the safety of this utility model.

[0067] Of course, in actual use, a water pump or other structure can also be set in the overflow treatment component 4 to directly transport the overflow to other treatment processes or to re-enter the ozone treatment tank 5 for further treatment.

[0068] Reference Figure 1 The top of the guide pipe 2 is connected to the exhaust gas treatment component 3, and the bottom is connected to the overflow liquid treatment component 4. The exhaust gas treatment component 3 is connected to the outside. When the ozone treatment tank 5 overflows, the overflowing liquid will automatically flow into the overflow liquid treatment component 4 under the action of gravity. The water seal and the ozone diffused from the overflow liquid will be dispersed in the pipe of the guide pipe 2. Over time, it will gradually diffuse to the exhaust gas treatment component 3, where it will be gradually adsorbed and / or decomposed for harmless treatment.

[0069] Furthermore, and importantly, during overpressure release, because the bottom of the guide pipe 2 is connected to the overflow treatment component 4, which is not directly connected to the outside and has relatively high air resistance, the ozone released during overpressure release will still preferentially flow to the exhaust gas treatment component 3, which is connected to the outside and has lower air resistance, and thus be quickly treated. By setting up the exhaust gas treatment component 3, ozone is prevented from being pushed into the liquid in the overflow treatment component 4 during overpressure release, thus avoiding problems such as overflow or ozone leakage.

[0070] The exhaust gas treatment component 3 is equipped with ozone adsorption material and / or ozone catalytic material.

[0071] Among them, ozone adsorption materials can be activated carbon, aerogel, etc., which capture and concentrate ozone molecules through physical adsorption. They are relatively inexpensive, but they are prone to saturation under long-term high-intensity operation and need to be replaced regularly. They are suitable for environments with low operating intensity. Ozone catalytic materials, such as oxide catalysts containing manganese and copper, can catalyze the rapid decomposition of ozone. They can be stably deployed in the exhaust gas treatment component 3 for a long time, ensuring that in most cases, diffused or released ozone can be treated quickly and efficiently. However, their cost is relatively high.

[0072] Furthermore, in practical applications, the first overflow weirs 1 on multiple ozone treatment tanks 5 can be connected to the same exhaust gas treatment assembly 3 via guide pipes 2, ensuring smooth gas flow. This method can further reduce costs.

[0073] Example 2:

[0074] Reference Figure 5 This utility model provides a water-sealed overflow device for an ozone treatment tank 5. The difference from Embodiment 1 is that the guide pipe 2 includes an air intake pipe 12 and a flow pipe 13. The outlet of the overflow pipe 6 is connected to the air intake pipe 12. The top of the air intake pipe 12 is connected to the exhaust gas treatment component 3. The bottom of the air intake pipe 12 is connected to the flow pipe 13 via a second overflow weir 14, and the flow pipe 13 is connected to the overflow liquid treatment component 4. A water seal is also provided in the second overflow weir 14. By setting up the air intake pipe 12, the flow pipe 13, and the second overflow weir 14, the gas path and liquid path are further separated, thereby improving the treatment efficiency, safety, and reliability of the water-sealed overflow device in this embodiment.

[0075] Specifically, the vent pipe 12 directly receives the discharge from the overflow pipe 6. The liquid in the pipe flows into the second overflow weir 14 under the influence of gravity, and then enters the vent pipe 13 through the second overflow weir 14, further flowing into the overflow liquid treatment component 4. Gases such as ozone are blocked by the second overflow weir 14 and deposited in the vent pipe 12, and are finally guided by the vent pipe 12 to the exhaust gas treatment component 3 for harmless treatment.

[0076] Furthermore, compared to a single guide pipe 2, the length of the air intake pipe 12 can be set to be shorter, or the second overflow weir 14 can be set closer to the overflow pipe 6, making it easier for gases such as ozone in the air intake pipe 12 to flow to or come into contact with the exhaust gas treatment component 3, thereby improving the treatment effect of the exhaust gas treatment component 3 and preventing a large amount of ozone from depositing in the guide pipe 2.

[0077] Furthermore, when overpressure is released, the water seal in the first overflow weir 1 is pushed out and flows into the second overflow weir 14. The water seal in the second overflow weir 14 can still play a blocking role, which can better guide the gas during overpressure release into the tail gas treatment component 3 and maintain the sealing effect of the ozone treatment pool 5. This prevents the ozone gas from depositing in the guide pipe 2, especially in the diversion pipe 13, and prevents ozone from leaking through the overflow liquid treatment component 4. It also prevents external gas from backflowing through the tail gas treatment component 3 or the gas in the tail gas treatment component 3.

[0078] In addition, the water seal in the second overflow weir 14 can further prevent problems such as backflow of external gas after overpressure release, especially the problem of backflow of external gas through the outlet of the drainage pipe 13 in the open structure overflow liquid treatment component 4.

[0079] Reference Figure 6 The second overflow weir 14 includes a first weir wall 15 and a second weir wall 16. The two ends and bottom of the first weir wall 15 extend towards the drainage pipe 13 and enclose it to form a second water overflow cavity. The second weir wall 16 is disposed within the first weir wall 15, or in other words, within the second water overflow cavity, and its two ends are connected to the first weir wall 15, dividing the second water overflow cavity into a receiving channel 17 and an overflow channel 18. The bottom of the receiving channel 17 communicates with the bottom of the overflow channel 18, forming a second water seal area 19 on both sides of the bottom of the second weir wall 16. The receiving channel 17 is connected to the bottom of the air intake pipe 12. The top of the overflow channel 18 is connected to the overflow liquid treatment assembly 4 via the drainage pipe 13.

[0080] The top of the second weir wall 16 also extends into the wall of the drainage pipe, sealing the top of the overflow channel to prevent overflow liquid from leaking out.

[0081] The second overflow weir 14 operates on the same principle as the first overflow weir 1. The first weir wall 15 is divided into two parts by the second weir wall 16: a receiving channel 17 for receiving the fluid in the air intake pipe 12 and an overflow channel 18 for further forming a water seal. A water seal area 11 is formed at the bottom of both channels, separating the air intake pipe 12 from the drainage pipe 13. When the ozone treatment tank 5 overflows, the liquid discharged from the overflow pipe 6 enters the receiving channel 17 of the second overflow weir 14, then the water seal area 11 within the second overflow weir 14, and then passes through the bottom of the second weir wall 16 into the overflow channel 18. Finally, it enters the overflow liquid treatment assembly 4 from the top of the overflow channel 18.

[0082] Reference Figure 5-6 The diameter of the vent pipe 12 is larger than that of the overflow pipe 6. During overpressure release, the flow rate and velocity of the gas at the release point are generally high. The larger diameter of the vent pipe 12 reduces pipeline resistance during pressure relief and provides a buffer to some extent, ensuring smoother and faster gas discharge during overpressure release. This ensures a rapid reduction in gas pressure within the ozone treatment tank 5, guaranteeing efficient and responsive pressure relief, while preventing excessive pressure build-up in the vent pipe 12, which could completely push out the water seal in the second overflow weir 14, thus ensuring a tight seal.

[0083] Reference Figure 6 The top of the first weir wall 15 is connected to the wall of the air intake pipe 12, and its two ends and bottom are connected to the wall of the drainage pipe 13. The second weir wall 16 is connected to the wall of the air intake pipe 12. In actual operation, both the first weir wall 15 and the second weir wall 16 can be used as part of the pipeline between the air intake pipe 12 and the drainage pipe 13, integrally formed with the pipeline to achieve a better sealing effect. Alternatively, corresponding connection structures can be set on the basis of the drainage pipe 13 and the air intake pipe 12, and connected to the corresponding pipeline through welding, bolts, flanges, etc., as long as a water seal is formed and a seal is ensured.

[0084] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0085] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0086] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0087] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0088] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A water seal overflow device for an ozone treatment tank, characterized in that, include: A first overflow weir (1) for discharging overflow liquid, a guide pipe (2) connected to the first overflow weir (1) for guiding the flow of overflow liquid discharged from the first overflow weir (1), a tail gas treatment component (3) connected to the guide pipe (2) for harmlessly treating the gas discharged through the first overflow weir (1), and an overflow liquid treatment component (4) connected to the guide pipe (2) for treating overflow liquid. The first overflow weir (1) is located at the top of the inner wall of the ozone treatment tank (5); the first overflow weir (1) includes an overflow pipe (6) for connecting the first overflow weir (1) and the guide pipe (2), an inner water seal weir wall (7) and an outer overflow weir wall (8); the bottom of the outer overflow weir wall (8) extends toward the inner wall of the ozone treatment tank (5) and forms a water overflow cavity with the inner wall of the ozone treatment tank (5); the inner water seal weir wall (7) is located inside the water overflow cavity; the inner water seal weir wall (7) divides the water overflow cavity into an inner overflow cavity (9) and an outer overflow channel (10); the top of the inner overflow cavity (9) is sealed, and the bottom is connected to the bottom of the outer overflow channel (10); the top of the outer overflow channel (10) is connected to the interior of the ozone treatment tank (5); the inner overflow cavity (9) is connected to the guide pipe (2) through the overflow pipe (6); The bottom of the inner overflow cavity (9) and the outer overflow channel (10) is a water seal area (11).

2. The water seal overflow device for an ozone treatment tank as described in claim 1, characterized in that, The inner overflow cavity (9) is connected to the ozone treatment tank (5) only through the outer overflow channel (10); the vertical height of the lowest point of the connection between the overflow pipe (6) and the inner overflow cavity (9) is lower than the connection between the top of the outer overflow channel (10) and the ozone treatment tank (5); the height of the top of the inner overflow cavity (9) does not exceed the height of the outer overflow channel (10); after the water seal area (11) is formed, its top is higher than the bottom of the inner water seal weir wall (7).

3. The water seal overflow device for an ozone treatment tank as described in claim 1, characterized in that, The inner water seal weir wall (7) located inside the outer overflow weir wall (8) and the inner wall of the ozone treatment tank (5) form an inner overflow cavity (9) that communicates with the bottom of the outer overflow channel (10). The top of the inner water seal weir (7) extends toward the inner wall of the ozone treatment tank (5), sealing the top of the inner overflow cavity (9); both ends of the inner water seal weir (7) and the outer overflow weir (8) are connected to the inner wall of the ozone treatment tank (5).

4. The water seal overflow device for an ozone treatment tank as described in claim 1, characterized in that, The exhaust gas treatment component (3) is provided with ozone adsorption material and / or ozone catalytic material.

5. The water seal overflow device for an ozone treatment tank as described in any one of claims 1-4, characterized in that, The overflow weir wall (8) is an arc-shaped or polygonal structure, and the 7 is an arc-shaped or polygonal structure.

6. The water seal overflow device for an ozone treatment tank as described in any one of claims 1-4, characterized in that, The guide pipe (2) includes an air intake pipe (12) and a drainage pipe (13); the outlet of the overflow pipe (6) is connected to the air intake pipe (12); the top of the air intake pipe (12) is connected to the exhaust gas treatment assembly (3).

7. The water seal overflow device for an ozone treatment tank as described in claim 6, characterized in that, The bottom of the air intake pipe (12) is connected to the drainage pipe (13) through the second overflow weir (14), and the drainage pipe (13) is connected to the overflow liquid treatment component (4); the exhaust gas treatment component (3) is connected to the outside.

8. The water seal overflow device for an ozone treatment tank as described in claim 7, characterized in that, The diameter of the air intake pipe (12) is larger than the diameter of the overflow pipe (6).

9. The water seal overflow device for an ozone treatment tank as described in claim 7, characterized in that, The second overflow weir (14) includes a first weir wall (15) and a second weir wall (16); the bottom of the first weir wall (15) extends toward the diversion pipe (13) and encloses it to form a second water overflow cavity; the second weir wall (16) is disposed in the first weir wall (15) and divides the second water overflow cavity into a receiving channel (17) and an overflow channel (18).

10. The water seal overflow device for an ozone treatment tank as described in claim 9, characterized in that, The bottom of the receiving channel (17) is connected to the bottom of the overflow channel (18), forming a second water seal area (19) on both sides of the bottom of the second weir wall (16); the receiving channel (17) is connected to the bottom of the air intake pipe (12); the top of the overflow channel (18) is connected to the overflow liquid treatment assembly (4) through the drainage pipe (13); the first weir wall (15) is connected to the pipe walls of the air intake pipe (12) and the drainage pipe (13) respectively; the second weir wall (16) is connected to the pipe wall of the air intake pipe (12).

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