Tail gas treatment device of ozone generator

Abstract

The utility model relates to the technical field of ozone tail gas, and discloses a tail gas treatment device of an ozone generator, which comprises a treatment box body, the interior of the treatment box body is divided into a pyrolysis chamber, two catalysis chambers, an adsorption chamber and a reduction chamber, and a stirring mechanism and a quantitative feeding mechanism are mounted at the upper end of the reduction chamber in an embedded manner. The tail gas of the ozone generator is subjected to pyrolytic reaction through the high-temperature pyrolysis mechanism in the pyrolysis chamber, is subjected to catalytic reaction through the catalytic chamber, is subjected to adsorption reaction through the adsorption chamber, and is subjected to reduction reaction through the reduction chamber finally, so that the tail gas of the ozone generator is subjected to catalytic reaction. Ozone in the ozone tail gas is thoroughly purified; and the concentration of the sodium thiosulfate liquid medicine in the reduction chamber can be controlled within a set range through the quantitative feeding mechanism, the stirring mechanism and the concentration detection sensor, so that the reduction reaction is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ozone tail gas, in particular to a tail gas treatment device of an ozone generator. Background Art

[0002] Ozone generators mainly use high voltage discharge to split oxygen molecules into free oxygen atoms, which then react with oxygen molecules to generate ozone. Ozone can oxidize and degrade harmful gases, bacteria, viruses and other substances, so it is widely used in indoor air purification and other fields; however, ozone itself is also a harmful substance. If the tail gas of the ozone generator is directly discharged into the atmosphere, it will cause atmospheric environmental pollution; therefore, the tail gas treatment of the ozone generator is also very important.

[0003] A Chinese patent discloses an ozone generator tail gas treatment device (authorization announcement number CN 214389491 U). The patented technology inputs the tail gas generated by the ozone generator through a first pipe, starts the power supply, and energizes the heater through a first wire. The heater generates heat, and the heat is dispersed inside the cavity of the heating chamber. The tail gas is input into the curved pipe through the first pipe, and the heat purifies the tail gas in the curved pipe. The curved curved pipe makes the tail gas purification more thorough, thereby improving the use effect of the equipment. However, the tail gas treatment is not thorough enough, and some odors may not be decomposed. Utility Model Content

[0004] The purpose of the utility model is to provide an ozone generator tail gas treatment device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A tail gas treatment device for an ozone generator comprises a treatment box, the interior of the treatment box is divided into a pyrolysis chamber, two catalytic chambers, an adsorption chamber and a reduction chamber, a high-temperature pyrolysis mechanism is arranged inside the pyrolysis chamber, a bent connecting pipe is arranged inside the adsorption chamber, a concentration detection sensor and a plurality of gas outlet pipes are installed on the inner side of the reduction chamber, a gas outlet head is installed at the lower end of each gas outlet pipe, a stirring mechanism and a quantitative feeding mechanism are embedded and installed at the upper end of the reduction chamber, the high-temperature pyrolysis mechanism comprises an outer pyrolysis cylinder and a pyrolysis cylinder cover fixed at the upper end of the outer pyrolysis cylinder, the upper end of the pyrolysis cylinder cover is connected with a connecting pipe, an inner pyrolysis cylinder is arranged on the inner side of the outer pyrolysis cylinder, and a plurality of guide plates are connected between the outer pyrolysis cylinder and the inner pyrolysis cylinder, an inner electric heating rod is arranged on the inner side of the inner pyrolysis cylinder, an outer electric heating rod is arranged between the outer pyrolysis cylinder, the inner pyrolysis cylinder and the guide plate, and a plurality of air holes are opened on the side walls of the outer pyrolysis cylinder and the inner pyrolysis cylinder.

[0007] As a further solution of the utility model: the pyrolysis chamber and the high-temperature pyrolysis mechanism are filled with heat-insulating cotton, the catalytic chamber is respectively located at the front and rear sides of the pyrolysis chamber, the adsorption chamber is located at one side of the pyrolysis chamber, and the reduction chamber is located at one side of the adsorption chamber.

[0008] As a further solution of the utility model: a plurality of air holes are provided between the pyrolysis chamber and the catalytic chamber, the two ends of the curved connecting pipe are respectively connected to a catalytic chamber, and a plurality of air holes are also provided on the curved connecting pipe, and the air outlet pipe is connected to the adsorption chamber.

[0009] As a further solution of the utility model: an air inlet is provided at the upper end of the pyrolysis chamber, the air inlet is connected to the connecting pipe, an exhaust port is provided on the front side of the upper end of the reduction chamber, and a liquid discharge port is provided on one side of the lower end of the reduction chamber.

[0010] As a further solution of the utility model: the quantitative feeding mechanism includes a feeding barrel, one side of the upper end of the feeding barrel is connected to a material bin, and the other side of the lower end of the feeding barrel is connected to a discharge port, an auger shaft is installed inside the feeding barrel, and a feeding motor is installed at one end of the feeding barrel, the output end of the feeding motor is fixedly connected to the auger shaft, and the discharge port is connected to the reduction chamber.

[0011] As a further solution of the utility model: the stirring mechanism includes a stirring motor, a transmission is fixedly installed at the lower end of the stirring motor, a stirring rod is fixedly connected to the output end of the transmission, and a stirring blade is installed on the stirring rod.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model firstly performs a pyrolysis reaction on the tail gas of the ozone generator through a high-temperature pyrolysis mechanism in a pyrolysis chamber, then performs a catalytic reaction on the tail gas of the ozone generator through a catalytic chamber, then performs an adsorption reaction on the tail gas of the ozone generator through an adsorption chamber, and finally performs a reduction reaction on the tail gas of the ozone generator through a reduction chamber, so that the ozone in the ozone tail gas is completely purified, and the cleanliness of the tail gas treatment is effectively guaranteed; the concentration of the sodium thiosulfate liquid in the reduction chamber can be controlled within a set range through a quantitative feeding mechanism, a stirring mechanism and a concentration detection sensor, and the reduction reaction is effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an ozone generator tail gas treatment device;

[0015] Figure 2 It is a schematic cross-sectional structure diagram of an ozone generator tail gas treatment device;

[0016] Figure 3It is a schematic diagram of the decomposed structure of a high-temperature pyrolysis mechanism in an ozone generator tail gas treatment device;

[0017] Figure 4 It is a partial cross-sectional structural schematic diagram of a quantitative feeding mechanism in an ozone generator tail gas treatment device;

[0018] Figure 5 The present invention is a schematic diagram of the structure of a stirring mechanism in an ozone generator tail gas treatment device.

[0019] In the figure: 1. treatment box; 101. pyrolysis chamber; 102. catalytic chamber; 103. adsorption chamber; 104. reduction chamber; 2. stirring mechanism; 21. stirring motor; 22. transmission; 23. stirring rod; 24. stirring blade; 3. quantitative feeding mechanism; 31. feeding barrel; 32. feeding motor; 33. feeding port; 34. auger shaft; 35. silo; 4. air inlet; 5. drain port; 6. exhaust port; 7. elbow connecting pipe; 8. high-temperature pyrolysis mechanism; 81. external pyrolysis barrel; 82. external electric heating rod; 83. internal electric heating rod; 84. pyrolysis barrel cover; 85. connecting pipe; 86. guide plate; 87. internal pyrolysis barrel; 9. gas outlet; 10. concentration detection sensor; 11. gas outlet pipe. DETAILED DESCRIPTION

[0020] See also Figures 1 to 5In one embodiment of the utility model, an ozone generator tail gas treatment device comprises a treatment box 1, the interior of the treatment box 1 is divided into a pyrolysis chamber 101, two catalytic chambers 102, an adsorption chamber 103 and a reduction chamber 104, a high-temperature pyrolysis mechanism 8 is arranged inside the pyrolysis chamber 101, a bent connecting pipe 7 is arranged inside the adsorption chamber 103, a concentration detection sensor 10 and a plurality of gas outlet pipes 11 are installed on the inner side of the reduction chamber 104, a gas outlet head 9 is installed at the lower end of each gas outlet pipe 11, a stirring mechanism 2 and a quantitative feeding mechanism 3 are embedded and installed at the upper end of the reduction chamber 104, the high-temperature pyrolysis mechanism 8 comprises an outer pyrolysis cylinder 81 and a pyrolysis cylinder cover 84 fixed at the upper end of the outer pyrolysis cylinder 81, the upper end of the pyrolysis cylinder cover 84 is connected with a connecting pipe 85, an inner pyrolysis cylinder 87 is arranged on the inner side of the outer pyrolysis cylinder 81, and the outer pyrolysis cylinder 81 and the inner pyrolysis cylinder A plurality of guide plates 86 are connected between 87, an inner electric heating rod 83 is installed on the inner side of the inner pyrolysis tube 87, an outer electric heating rod 82 is arranged between the outer pyrolysis tube 81, the inner pyrolysis tube 87 and the guide plate 86, and a plurality of air holes are opened on the side walls of the outer pyrolysis tube 81 and the inner pyrolysis tube 87. The interior of the inner pyrolysis tube 87 is heated by the inner electric heating rod 83, and the outer pyrolysis tube 81, the inner pyrolysis tube 87 and the guide plate 86 are heated by the outer electric heating rod 82. The tail gas of the ozone generator enters the inner pyrolysis tube 87 from the connecting pipe 85, and a part of the ozone is decomposed by heat under high temperature environment. The decomposed gas enters the position of the outer electric heating rod 82 through the air holes on the inner pyrolysis tube 87, and is pyrolyzed at high temperature again. The pyrolyzed gas enters the position between the pyrolysis chamber 101 and the high-temperature pyrolysis mechanism 8 through the air holes on the outer pyrolysis tube 81.

[0021] exist Figure 1 and Figure 2 In the figure, the space between the pyrolysis chamber 101 and the high-temperature pyrolysis mechanism 8 is filled with heat insulation cotton to reduce the heat loss in the high-temperature pyrolysis mechanism 8; the catalyst chamber 102 is respectively located at the front and rear sides of the pyrolysis chamber 101, and the catalyst chamber 102 is filled with a catalyst; the adsorption chamber 103 is located at one side of the pyrolysis chamber 101, and the adsorption chamber 103 is filled with activated carbon; the reduction chamber 104 is located at one side of the adsorption chamber 103, and the reduction chamber 104 is filled with sodium thiosulfate solution.

[0022] exist Figure 1 and Figure 2 In the figure, a plurality of air holes are provided between the pyrolysis chamber 101 and the catalytic chamber 102, the two ends of the curved connecting pipe 7 are respectively connected with a catalytic chamber 102, and a plurality of air holes are also provided on the curved connecting pipe 7, and the outlet pipe 11 is connected with the adsorption chamber 103. The ozone tail gas first undergoes a pyrolysis reaction in the pyrolysis chamber 101, then enters the catalytic chamber 102 for a catalytic reaction, then enters the adsorption chamber 103 for an adsorption reaction, and finally enters the reduction chamber 104 for a reduction reaction, so that the ozone in the ozone tail gas is completely purified.

[0023] exist Figure 1 , Figure 2 and Figure 3 In the figure, an air inlet 4 is provided at the upper end of the pyrolysis chamber 101, and the air inlet 4 is connected to the connecting pipe 85, so that the tail gas containing ozone can enter the high-temperature pyrolysis mechanism 8 through the air inlet 4 for pyrolysis reaction. An exhaust port 6 is provided on the front side of the upper end of the reduction chamber 104, and a drain port 5 is provided on one side of the lower end of the reduction chamber 104. The liquid medicine after the reduction reaction can be discharged through the drain port 5, and the tail gas after the ozone purification can be discharged through the exhaust port 6.

[0024] exist Figure 1 and Figure 4 In the embodiment, the quantitative feeding mechanism 3 includes a feeding barrel 31, one side of the upper end of the feeding barrel 31 is connected to a silo 35, and the other side of the lower end of the feeding barrel 31 is connected to a discharge port 33, an auger shaft 34 is installed inside the feeding barrel 31, and a feeding motor 32 is installed at one end of the feeding barrel 31, the output end of the feeding motor 32 is fixedly connected to the auger shaft 34, and the discharge port 33 is connected to the reduction chamber 104, the sodium thiosulfate particles are stored in the silo 35, and a solvent is added to the reduction chamber 104 so that the solvent covers the gas outlet 9, and the auger shaft 34 is driven to rotate by the feeding motor 32, so that the sodium thiosulfate particles in the silo 35 quantitatively enter the feeding barrel 31, and under the transportation of the auger shaft 34, enter the reduction chamber 104 from the discharge port 33 to form a sodium thiosulfate solution.

[0025] exist Figure 1 and Figure 5 In the embodiment, the stirring mechanism 2 includes a stirring motor 21, a transmission 22 is fixedly installed at the lower end of the stirring motor 21, a stirring rod 23 is fixedly connected to the output end of the transmission 22, and a stirring blade 24 is installed on the stirring rod 23. The stirring motor 21 drives the transmission 22 to run, and the transmission 22 drives the stirring rod 23 and the stirring blade 24 to rotate together. The sodium thiosulfate solution in the reduction chamber 104 is stirred by the stirring blade 24, so that the sodium thiosulfate particles are completely dissolved in the solvent. The concentration of the sodium thiosulfate solution is monitored by the concentration detection sensor 10. When the concentration is lower than the set value, the quantitative feeding mechanism 3 is started to add sodium thiosulfate particles into the reduction chamber 104.

[0026] Working principle of the utility model: when the tail gas of the ozone generator needs to be treated, first, heat insulation cotton is filled between the pyrolysis chamber 101 and the high-temperature pyrolysis mechanism 8, the catalyst is filled in the catalytic chamber 102, the activated carbon is filled in the adsorption chamber 103, and sodium thiosulfate solution is prepared in the reduction chamber 104;

[0027] Next, the tail gas of the ozone generator is fed into the air inlet 4, and the tail gas enters the inner pyrolysis tube 87 through the connecting pipe 85, and the interior of the inner pyrolysis tube 87 is heated by the inner electric heating rod 83, and the outer pyrolysis tube 81, the inner pyrolysis tube 87 and the guide plate 86 are heated by the outer electric heating rod 82. After the tail gas enters the inner pyrolysis tube 87, a part of the ozone is thermally decomposed under the high temperature environment, and the decomposed gas enters the position of the outer electric heating rod 82 through the air holes on the inner pyrolysis tube 87, and is pyrolyzed again at high temperature. The pyrolyzed gas enters the position between the pyrolysis chamber 101 and the high-temperature pyrolysis mechanism 8 through the air holes on the outer pyrolysis tube 81, and then enters the catalytic chamber 102 through the air holes between the pyrolysis chamber 101 and the catalytic chamber 102;

[0028] The unpyrolyzed ozone in the exhaust gas undergoes a catalytic reaction under the action of the catalyst in the catalyst chamber 102; the exhaust gas after the catalytic reaction enters the elbow pipe 7, and then enters the adsorption chamber 103 from the air holes on the elbow pipe 7, and the unreacted ozone in the exhaust gas is adsorbed by the activated carbon filled in the adsorption chamber 103; after the adsorption reaction, the exhaust gas enters the exhaust pipe 11, and then enters the reduction chamber 104 from the exhaust head 9, and the previously unreacted ozone is completely reduced in the sodium thiosulfate solution, so that the purified exhaust gas is discharged from the exhaust port 6.

[0029] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. An ozone generator tail gas treatment device, comprising a treatment box (1), characterized in that: The interior of the treatment box (1) is divided into a pyrolysis chamber (101), two catalytic chambers (102), an adsorption chamber (103) and a reduction chamber (104); a high-temperature pyrolysis mechanism (8) is arranged inside the pyrolysis chamber (101); a curved connecting pipe (7) is arranged inside the adsorption chamber (103); a concentration detection sensor (10) and a plurality of gas outlet pipes (11) are installed on the inner side of the reduction chamber (104); a gas outlet head (9) is installed at the lower end of each gas outlet pipe (11); a stirring mechanism (2) and a quantitative feeding mechanism (3) are embedded and installed at the upper end of the reduction chamber (104); the high-temperature pyrolysis mechanism (8) comprises An outer pyrolysis cylinder (81) and a pyrolysis cylinder cover (84) fixed on the upper end of the outer pyrolysis cylinder (81), the upper end of the pyrolysis cylinder cover (84) is connected to a connecting pipe (85), an inner pyrolysis cylinder (87) is arranged on the inner side of the outer pyrolysis cylinder (81), and a plurality of guide plates (86) are connected between the outer pyrolysis cylinder (81) and the inner pyrolysis cylinder (87), an inner electric heating rod (83) is installed on the inner side of the inner pyrolysis cylinder (87), an outer electric heating rod (82) is arranged between the outer pyrolysis cylinder (81), the inner pyrolysis cylinder (87) and the guide plate (86), and the side walls of the outer pyrolysis cylinder (81) and the inner pyrolysis cylinder (87) are provided with a plurality of air holes.

2. The tail gas treatment device of an ozone generator according to claim 1, characterized in that: The pyrolysis chamber (101) and the high-temperature pyrolysis mechanism (8) are filled with heat-insulating cotton, the catalytic chamber (102) is respectively located at the front and rear sides of the pyrolysis chamber (101), the adsorption chamber (103) is located at one side of the pyrolysis chamber (101), and the reduction chamber (104) is located at one side of the adsorption chamber (103).

3. The tail gas treatment device of an ozone generator according to claim 1, characterized in that: A plurality of air holes are provided between the pyrolysis chamber (101) and the catalyst chamber (102), the two ends of the curved connecting pipe (7) are respectively connected to one catalyst chamber (102), and a plurality of air holes are also provided on the curved connecting pipe (7), and the air outlet pipe (11) is connected to the adsorption chamber (103).

4. The tail gas treatment device of an ozone generator according to claim 1, characterized in that: The upper end of the pyrolysis chamber (101) is provided with an air inlet (4), and the air inlet (4) is connected to the connecting pipe (85). The front side of the upper end of the reduction chamber (104) is provided with an exhaust port (6), and a side of the lower end of the reduction chamber (104) is provided with a liquid discharge port (5).

5. The tail gas treatment device of an ozone generator according to claim 1, characterized in that: The quantitative feeding mechanism (3) comprises a feeding cylinder (31), one side of the upper end of the feeding cylinder (31) is connected to a material bin (35), and the other side of the lower end of the feeding cylinder (31) is connected to a discharge port (33), an auger shaft (34) is installed inside the feeding cylinder (31), and a feeding motor (32) is installed at one end of the feeding cylinder (31), the output end of the feeding motor (32) is fixedly connected to the auger shaft (34), and the discharge port (33) is connected to the reduction chamber (104).

6. The tail gas treatment device of an ozone generator according to claim 1, characterized in that: The stirring mechanism (2) comprises a stirring motor (21), a transmission (22) is fixedly mounted on the lower end of the stirring motor (21), a stirring rod (23) is fixedly connected to the output end of the transmission (22), and a stirring blade (24) is mounted on the stirring rod (23).

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