Ozone release tower without aeration backwashing

Abstract

The utility model relates to an ozone release tower without aeration backwashing, which comprises an ozone release tank, a water inlet pipe, a water outlet pipe and a gas outlet pipe, and is technically characterized in that a central cylinder communicated with the tail end of the water inlet pipe is arranged in the center of the ozone release tank, a plurality of gas overflow holes are formed in the top of the central cylinder, and an upper water passing hole is formed in the upper part of the side wall of the central cylinder; an annular transition space is formed between the central cylinder and the ozone release tank, three concentric separation cylinders are sequentially arranged in the annular transition space from inside to outside, a starting end lower water passing hole is formed in the lower end of the first concentric separation cylinder adjacent to the central cylinder, and a terminal end lower water passing hole is formed in the lower end of the third concentric separation cylinder adjacent to the inner side wall of the ozone release tank; a middle water passing hole is formed in the upper portion of the side wall of the second concentric partition barrel, a horizontal baffle is fixed to the upper ends of the three concentric partition barrels together, multiple sets of exhaust holes are formed in the horizontal baffle, the upper water passing hole and the middle water passing hole are equal in height, and the water outlet pipe is lower than the middle water passing hole. The reaction time of ozone and water is prolonged, and the sewage treatment cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage and wastewater treatment equipment, specifically to an ozone release tower that does not require aeration and backwashing. Background Technology

[0002] Ozone catalytic oxidation technology uses ozone to oxidize wastewater, significantly reducing the content of phenolic substances and ammonia nitrogen, greatly lowering COD, killing bacteria in wastewater, preventing microbial growth, and reducing the difficulty of subsequent biological treatment of wastewater.

[0003] In existing technology, the sewage pipeline is connected to the inlet at the top of the ozone catalytic oxidation tower. Sewage enters the tower via spray pipes inside, while ozone gas generated by the ozone generator is transported through pipelines to the air inlet at the bottom. The gas and water flow counter-currently, and microporous aeration discs arranged on the air inlet pipeline disperse the ozone gas into tiny bubbles, increasing the gas-liquid contact area. Simultaneously, a solid packing catalyst layer within the tower accelerates ozone decomposition and promotes the ozone oxidation reaction. To achieve ozone recycling, each tower is connected to an ozone release tower at its outlet, facilitating ozone overflow and collection. The ozone release tower does not require a solid packing catalyst layer, thus eliminating the need for aeration backwashing. However, this does extend the reaction time between ozone and water to some extent, enhancing the sewage treatment effect.

[0004] Currently, in order to better treat wastewater, ozone catalytic oxidation towers and ozone release towers are usually combined into one treatment unit, and then multiple treatment units are connected in series. However, connecting multiple treatment units in series results in high treatment costs. Utility Model Content

[0005] The purpose of this invention is to provide a reasonably structured and reliable ozone release tower that does not require aeration and backwashing. Compared with existing technologies, it extends the reaction time between ozone and water, thereby further reducing wastewater treatment costs.

[0006] The technical solution of this utility model is:

[0007] An ozone release tower without aeration and backwashing includes an ozone release tank, an inlet pipe located at the lower part of the side wall of the ozone release tank, an outlet pipe located at the upper part of the side wall of the ozone release tank, and an outlet pipe located at the top of the ozone release tank. The key technical features are: a central cylinder connected to the end of the inlet pipe is located at the center of the ozone release tank; multiple overflow holes are located at the top of the central cylinder; an upper water passage hole is located at the upper part of the side wall of the central cylinder; an annular transition space is formed between the central cylinder and the ozone release tank; and three concentric partitions are arranged sequentially from the inside to the outside of the annular transition space. The system utilizes three concentric partitions to form a first, second, third, and fourth compartment from the inside out. The first concentric partition, adjacent to the central compartment, has a starting end lower water passage at its lower end. The third concentric partition, adjacent to the inner wall of the ozone release tank, has a terminal lower water passage at its lower end. The second concentric partition has a middle water passage at its upper side wall. A horizontal baffle is fixed to the upper ends of the three concentric partitions. Multiple sets of vent holes are arranged on the horizontal baffle. The upper water passage and the middle water passage are at the same height, and the water outlet pipe is lower than the height of the middle water passage.

[0008] In the aforementioned ozone release tower without aeration and backwashing, a first sludge removal pipe is fixed at the bottom of the ozone release tank corresponding to the position of the central cylinder, and a first sludge removal valve is provided on the first sludge removal pipe; a second sludge removal pipe is fixed at the bottom of the ozone release tank corresponding to the position of the first compartment, and a second sludge removal valve is provided on the second sludge removal pipe; and a third sludge removal pipe is fixed at the bottom of the ozone release tank corresponding to the position of the third compartment, and a third sludge removal valve is provided on the third sludge removal pipe.

[0009] The aforementioned ozone release tower without aeration and backwashing has a first inlet valve at the inner end of the inlet pipe, a second reversing valve at the position corresponding to the second compartment of the inlet pipe, a third reversing valve fixed at the position corresponding to the fourth compartment of the inlet pipe, and a cleaning branch pipe at the outer end of the inlet pipe.

[0010] The aforementioned ozone release tower without aeration and backwashing has four sets of exhaust holes, which are respectively connected to the first, second, third, and fourth compartments. Each set of exhaust holes is evenly distributed around the center line of the ozone release tank.

[0011] The beneficial effects of this utility model are:

[0012] In operation, wastewater treated by the ozone catalytic oxidation tower is introduced into the central cylinder through the inlet pipe. It then enters the first compartment through the upper water passage, then the second compartment through the lower water passage at the starting end, followed by the third compartment through the middle water passage, and finally the fourth compartment through the lower water passage at the end. The wastewater is then discharged through the outlet pipe. This continuous flow of wastewater prolongs the discharge path, thus extending the reaction time between ozone and water, resulting in better wastewater treatment. This reduces the number of treatment units required and lowers wastewater treatment costs. Ozone overflows from the liquid surface during the wastewater flow and is finally discharged through the overflow and exhaust ports to the vent pipe at the top of the ozone release tank, achieving the purpose of ozone release. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] In the diagram: 1. Exhaust pipe, 2. Ozone release tank, 3. Horizontal baffle, 4. Exhaust port, 5. Concentric partition, 6. Fourth compartment, 7. Third compartment, 8. Second compartment, 9. First compartment, 10. Cleaning branch pipe, 11. Water inlet pipe, 12. Third directional valve, 13. Second directional valve, 14. First water inlet valve, 15. First sludge removal valve, 16. Second sludge removal valve, 17. Third sludge removal valve, 18. Central cylinder, 19. Lower water passage at the starting end, 20. Lower water passage at the end, 21. Upper water passage, 22. Middle water passage, 23. Exhaust pipe, 24. Overflow port. Detailed Implementation

[0015] The present invention will be described in detail with reference to the accompanying drawings.

[0016] like Figure 1 As shown, the ozone release tower without aeration and backwashing includes an ozone release tank 2, an inlet pipe 11 located at the lower part of the side wall of the ozone release tank 2, an outlet pipe 23 located at the upper part of the side wall of the ozone release tank 2, and an outlet pipe 1 located at the top of the ozone release tank 2.

[0017] The ozone release tank 2 has a central cylinder 18 connected to the end of the water inlet pipe 11. The top of the central cylinder 18 has multiple overflow holes 24, and the upper side wall of the central cylinder 18 has an upper water passage hole 21.

[0018] An annular transition space is formed between the central cylinder 18 and the ozone release tank 2. This annular transition space contains three concentric partitions 5 arranged sequentially from the inside out, forming a first compartment 9, a second compartment 8, a third compartment 7, and a fourth compartment 6 from the inside out. The lower end of the first concentric partition 5 adjacent to the central cylinder 18 has a starting end lower water passage hole 19. The lower end of the third concentric partition 5 adjacent to the inner wall of the ozone release tank 2 has a terminal lower water passage hole 20. The upper side wall of the second concentric partition 5 has a middle water passage hole 22. The upper water passage hole 21 and the middle water passage hole 22 are at the same height, and the water outlet pipe 23 is lower than the height of the middle water passage hole 22.

[0019] A horizontal baffle 3 is fixed to the upper end of the three concentric partition cylinders 5, and multiple sets of exhaust holes 4 are arranged on the horizontal baffle 3. In this embodiment, there are four sets of exhaust holes 4, which are respectively connected to the first partition 9, the second partition 8, the third partition 7 and the fourth partition 6, and each set of exhaust holes 4 is evenly distributed around the center line of the ozone release tank 2.

[0020] In this embodiment, a first cleaning pipe is fixed at the bottom of the ozone release tank 2 corresponding to the position of the central cylinder 18, and a first cleaning valve 15 is provided on the first cleaning pipe. A second cleaning pipe is fixed at the bottom of the ozone release tank 2 corresponding to the position of the first compartment 9, and a second cleaning valve 16 is provided on the second cleaning pipe. A third cleaning pipe is fixed at the bottom of the ozone release tank 2 corresponding to the position of the third compartment 7, and a third cleaning valve 17 is provided on the third cleaning pipe. A first inlet valve 14 is provided at the inner end of the water inlet pipe 11. A second reversing valve 13 is provided at the position of the water inlet pipe 11 corresponding to the position of the second compartment 8. A third reversing valve 12 is fixed at the position of the water inlet pipe 11 corresponding to the position of the fourth compartment 6. A cleaning branch pipe 10 is provided at the outer end of the water inlet pipe 11.

[0021] Working principle:

[0022] During operation, wastewater treated by the ozone catalytic oxidation tower enters the central cylinder 18 through the inlet pipe 11, then flows into the first compartment 9 through the upper water passage 21, then turns into the second compartment 8 through the lower water passage 19 at the starting end, then into the third compartment 7 through the middle water passage 22, and finally into the fourth compartment 6 through the lower water passage 20 at the end, and is finally discharged through the outlet pipe 23. The continuous turning process of the wastewater extends the discharge path and enhances the treatment effect. Ozone overflows from the liquid surface during the wastewater turning process and is finally discharged through the overflow hole 24 and the exhaust hole 4 to the gas outlet pipe 1 at the top of the ozone release tank 2, achieving the purpose of releasing ozone.

[0023] To prevent impurities in the wastewater from accumulating and affecting the effluent, the bottom of the ozone catalytic oxidation tower should be cleaned regularly. First, stop the wastewater from entering, then open the cleaning branch pipe 10. First, open the first inlet valve 14 and the first sludge removal valve 15 to clean the bottom of the central cylinder 18; then close the first inlet valve 14, switch the second reversing valve 13 to directly connect to the second compartment 8, open the second sludge removal valve 16, and clean the bottom of the first compartment 9 and the second compartment 8; finally, switch the third reversing valve 12 to directly connect to the fourth compartment 6, open the third sludge removal valve 17, and clean the bottom of the third compartment 7 and the fourth compartment 6.

[0024] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this utility model.

Claims

1. An ozone release tower without aeration and backwashing, comprising an ozone release tank, an inlet pipe disposed at the lower part of the side wall of the ozone release tank, an outlet pipe disposed at the upper part of the side wall of the ozone release tank, and an outlet pipe disposed at the top of the ozone release tank, characterized in that: The ozone release tank has a central cylinder connected to the end of the water inlet pipe. The top of the central cylinder has multiple vent holes, and the upper side wall of the central cylinder has an upper water passage hole. An annular transition space is formed between the central cylinder and the ozone release tank. The annular transition space has three concentric partitions arranged sequentially from the inside to the outside, forming a first compartment, a second compartment, a third compartment, and a fourth compartment from the inside to the outside. The lower end of the first concentric partition adjacent to the central cylinder has a starting end lower water passage hole, the lower end of the third concentric partition adjacent to the inner side wall of the ozone release tank has a terminal lower water passage hole, and the upper side wall of the second concentric partition has a middle water passage hole. The upper ends of the three concentric partitions are fixed together by a horizontal baffle. Multiple sets of vent holes are arranged on the horizontal baffle. The upper water passage hole and the middle water passage hole are at the same height, and the water outlet pipe is lower than the height of the middle water passage hole.

2. The ozone releasing un-aerated backwashable tower according to claim 1, characterized in that: A first sludge removal pipe is fixed at the bottom of the ozone release tank corresponding to the position of the central cylinder, and a first sludge removal valve is provided on the first sludge removal pipe. A second sludge removal pipe is fixed at the bottom of the ozone release tank corresponding to the position of the first compartment, and a second sludge removal valve is provided on the second sludge removal pipe. A third sludge removal pipe is fixed at the bottom of the ozone release tank corresponding to the position of the third compartment, and a third sludge removal valve is provided on the third sludge removal pipe.

3. The ozone releasing un-aerated backwashable tower of claim 1, wherein: The inner end of the water inlet pipe is provided with a first water inlet valve, the water inlet pipe is provided with a second reversing valve corresponding to the position of the second diaphragm, the water inlet pipe is fixed with a third reversing valve corresponding to the position of the fourth diaphragm, and the outer end of the water inlet pipe is provided with a cleaning branch pipe.

4. The ozone releasing un-aerated backwashable tower of claim 1, wherein: There are four sets of exhaust holes, which are connected to the first, second, third and fourth compartments respectively. Each set of exhaust holes is evenly distributed around the center line of the ozone release tank.

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