Efficient ozone denitration device

Abstract

This utility model relates to the field of denitrification equipment technology, specifically to a high-efficiency ozone denitrification device, including a scrubbing tower. The bottom of the scrubbing tower has a mixing section, which is connected to the top of a combustion tower via a downflow pipe. A cooling component is fitted around the outside of the mixing section. The mixing section is connected to an ozone generating component via a first connecting pipe. A spray component is provided on one side of the scrubbing tower. An exhaust ring is fixedly installed inside the mixing section, and a first annular cavity is provided inside the exhaust ring. An isolation plate and multiple exhaust holes arranged in a ring array are provided at the end of the exhaust ring away from the exhaust direction of the mixing section. The exhaust holes are connected to the first annular cavity. Symmetrically arranged arc-shaped guide plates are provided on the isolation plate, which are bent towards the end away from the exhaust holes. This invention solves the problem that in the conventional method of adding ozone into the exhaust pipe, some exhaust gas does not come into contact with the odor, requiring repeated mixing to achieve the desired ozone denitrification target, thus reducing the efficiency of ozone denitrification.

Description

Technical Field

[0001] This utility model relates to the field of denitrification equipment technology, specifically to a high-efficiency ozone denitrification device. Background Technology

[0002] Ozone oxidation denitrification mainly utilizes the strong oxidizing properties of ozone to convert more than 95% of the insoluble NO in flue gas into soluble high-valence nitrogen oxides. Then, in a scrubbing tower, the high-valence nitrogen oxides are absorbed by water or alkali to generate nitric acid or its salt, thereby achieving the purpose of removing NOx.

[0003] Mixing ozone with exhaust gas is crucial in the process of using ozone for denitrification. Ozone is usually added to the exhaust pipe and mixed naturally with the exhaust gas. However, because the exhaust gas has a certain flow rate, some of the exhaust gas will not come into contact with the ozone, requiring repeated mixing to achieve the expected ozone denitrification target, thus reducing the efficiency of ozone denitrification. Utility Model Content

[0004] The purpose of this invention is to provide a highly efficient ozone denitrification device, which solves the problem that in the common method of adding ozone into the exhaust pipe, some exhaust gas does not come into contact with the odor, requiring repeated mixing to achieve the expected ozone denitrification target, thus reducing the efficiency of ozone denitrification.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A high-efficiency ozone denitrification device includes a scrubbing tower. A horizontally arranged mixing section is located at one bottom end of the scrubbing tower. The mixing section is connected to the top of a combustion tower via a Z-shaped downflow pipe. A cooling component is fitted around the outside of the mixing section. An ozone generating component is connected to the mixing section via a first connecting pipe. A spraying component is located on one side of the scrubbing tower. An exhaust ring is fixedly installed inside the mixing section. A closed first annular cavity is located inside the exhaust ring. The first connecting pipe communicates with the first annular cavity. An isolation plate and multiple exhaust holes arranged in a ring array are located at the end of the exhaust ring away from the exhaust direction of the mixing section. The exhaust holes communicate with the first annular cavity. Symmetrically arranged arc-shaped guide plates are provided on the isolation plate, and the arc-shaped guide plates are bent towards the end away from the exhaust holes.

[0007] A further technical solution is that the spray assembly includes a washing liquid tank, a first water pump is connected to one side of the washing liquid tank, a vertical pipe is provided at the output end of the first water pump, a plurality of spray pipes are connected to the vertical pipe, and the end of the spray pipe away from the vertical pipe extends into the washing tower and is connected to a nozzle.

[0008] A further technical solution is that the bottom of the washing tower is connected to a waste liquid collection tank via a conduit.

[0009] A further technical solution is that the cooling component includes a protective sleeve fitted onto the mixing section, the protective sleeve having a second annular cavity inside, a coolant tank being provided between the combustion tower and the washing tower, a second water pump being provided at the top of the coolant tank and connected to the coolant tank, the output end of the second water pump being connected to the upper end of the protective sleeve through a second connecting pipe, and the lower end of the protective sleeve being connected to the coolant tank through a third connecting pipe.

[0010] A further technical solution is that the ozone generating assembly includes a liquid oxygen storage tank, a vaporizer, a pressure reducing valve, and an ozone generator arranged in sequence.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The exhaust gas generated by combustion in the combustion tower is transported to the mixing section through a downcomer. The Z-shaped downcomer helps to reduce the flow rate of the exhaust gas. Ozone is discharged from the exhaust port. The exhaust gas passes through the inner ring of the exhaust ring and is separated by a baffle plate. Then, the exhaust gas direction is changed by an arc-shaped guide plate, causing the exhaust gas to flow towards the exhaust port, so that the exhaust gas and the ozone discharged from the exhaust port can fully contact each other, thereby improving the ozone denitrification efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a high-efficiency ozone denitrification device according to the present invention.

[0014] Figure 2 This is a schematic diagram of the exhaust ring structure in this utility model. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] Example:

[0017] refer to Figures 1 to 2As shown, a high-efficiency ozone denitrification device is disclosed, including a scrubbing tower 1. A horizontally arranged mixing section 2 is provided at one bottom end of the scrubbing tower 1. The mixing section 2 is connected to the top of a combustion tower 4 through a Z-shaped downflow pipe 3. A cooling component is sleeved on the outside of the mixing section 2. An ozone generating component is connected to the mixing section 2 through a first connecting pipe. A spraying component is provided on one side of the scrubbing tower 1. An exhaust ring 5 is fixedly provided on the inside of the mixing section 2. A closed first annular cavity is provided on the inside of the exhaust ring 5. The first connecting pipe is connected to the first annular cavity. An isolation plate 6 and a plurality of exhaust holes 7 arranged in a ring array are provided on the end of the exhaust ring 5 away from the exhaust direction of the mixing section 2. The exhaust holes 7 are connected to the first annular cavity. A symmetrically arranged arc-shaped guide plate 8 is provided on the isolation plate 6. The arc-shaped guide plate 8 is bent toward the end away from the exhaust holes 7.

[0018] In this invention, the exhaust gas generated by combustion in the combustion tower 4 is transported to the mixing section 2 through the downcomer 3. The downcomer 3, arranged in a Z-shape, facilitates the reduction of the exhaust gas flow rate. Ozone is discharged from the exhaust port 7. The exhaust gas passes through the inner ring of the exhaust ring 5 and is separated by the isolation plate 6. The exhaust gas direction is then changed by the arc-shaped guide plate 8, causing the exhaust gas to flow towards the exhaust port 7. This ensures that the exhaust gas and the ozone discharged from the exhaust port 7 are in full contact, eliminating the need for a second mixing process between the exhaust gas and ozone, thereby improving the ozone denitrification efficiency.

[0019] For details, please refer to Figure 2 As shown, the two arc-shaped guide plates 8 do not completely block the mixing section 2. The arc-shaped guide plates 8 only change the direction of the exhaust gas flow, so that the exhaust gas is directed toward the exhaust port 7, and after mixing with ozone, it is finally discharged into the scrubbing tower 1.

[0020] The spray assembly includes a washing liquid tank 9, and a first water pump 10 is connected to one side of the washing liquid tank 9. The output end of the first water pump 10 is provided with a vertical pipe 11, and multiple spray pipes 12 are connected to the vertical pipe 11. The end of the spray pipe 12 away from the vertical pipe 11 extends into the scrubbing tower 1 and is connected to a nozzle. By setting multiple spray pipes 12, it is convenient to spray the exhaust gas at different heights, so that the sprayed washing liquid can fully contact the exhaust gas, thereby further improving the purification efficiency of the exhaust gas. The washing liquid can be water, alkaline solution, acid solution, or metal complex solution, etc.

[0021] The bottom of the washing tower 1 is connected to a waste liquid collection tank 13 via a conduit. The waste liquid collection tank 13 facilitates the collection of the washing liquid after spraying, and facilitates the collection of the washing liquid for subsequent treatment.

[0022] The cooling assembly includes a protective sleeve 14 fitted onto the mixing section 2. The protective sleeve 14 has a second annular cavity inside. A coolant tank 15 is provided between the combustion tower 4 and the washing tower 1. A second water pump is provided at the top of the coolant tank 15 and is connected to the coolant tank 15. The output end of the second water pump is connected to the upper end of the protective sleeve 14 through a second connecting pipe. The lower end of the protective sleeve 14 is connected to the coolant tank 15 through a third connecting pipe.

[0023] The coolant is pumped into the second annular cavity by the second water pump, and the coolant exchanges heat with the protective sleeve 14, thereby reducing the temperature of the mixing section 2.

[0024] The ozone generating assembly includes a liquid oxygen storage tank 16, a vaporizer 17, a pressure reducing valve 18, and an ozone generator 19 arranged in sequence. The ozone generator 19 is connected to the first annular cavity through a first connecting pipe. The entire ozone generating assembly is an existing design, and its principle and operation process will not be described in detail.

[0025] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A highly efficient ozone denitrification device, characterized in that: The system includes a scrubbing tower, with a horizontally arranged mixing section at one bottom end. The mixing section is connected to the top of a combustion tower via a Z-shaped downflow pipe. A cooling component is fitted around the outside of the mixing section. An ozone generating component is connected to the mixing section via a first connecting pipe. A spraying component is provided on one side of the scrubbing tower. An exhaust ring is fixedly provided inside the mixing section. A closed first annular cavity is provided inside the exhaust ring. The first connecting pipe is connected to the first annular cavity. An isolation plate and multiple exhaust holes arranged in a ring array are provided at the end of the exhaust ring away from the exhaust direction of the mixing section. The exhaust holes are connected to the first annular cavity. Symmetrically arranged arc-shaped guide plates are provided on the isolation plate. The arc-shaped guide plates are bent toward the end away from the exhaust holes.

2. The high-efficiency ozone denitrification device according to claim 1, characterized in that: The spray assembly includes a washing liquid tank, a first water pump is connected to one side of the washing liquid tank, a vertical pipe is provided at the output end of the first water pump, a plurality of spray pipes are connected to the vertical pipe, and the end of the spray pipe away from the vertical pipe extends into the washing tower and is connected to a nozzle.

3. The high-efficiency ozone denitrification device according to claim 1, characterized in that: The bottom of the washing tower is connected to a waste liquid collection tank via a conduit.

4. The high-efficiency ozone denitrification device according to claim 1, characterized in that: The cooling assembly includes a protective sleeve fitted onto the mixing section, with a second annular cavity inside the protective sleeve. A coolant tank is provided between the combustion tower and the washing tower. A second water pump is provided at the top of the coolant tank and connected to the coolant tank. The output end of the second water pump is connected to the upper end of the protective sleeve through a second connecting pipe, and the lower end of the protective sleeve is connected to the coolant tank through a third connecting pipe.

5. The high-efficiency ozone denitrification device according to claim 1, characterized in that: The ozone generating assembly includes a liquid oxygen storage tank, a vaporizer, a pressure reducing valve, and an ozone generator, which are connected in sequence.

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