CN220802649U

CN220802649U - Plasma catalytic oxidation waste gas treatment device

Info

Publication number: CN220802649U
Application number: CN202322167447.5U
Authority: CN
Inventors: 李操
Original assignee: Suzhou Rizhen Environmental Equipment Co ltd
Current assignee: Suzhou Rizhen Environmental Equipment Co ltd
Priority date: 2023-08-14
Filing date: 2023-08-14
Publication date: 2024-04-19
Anticipated expiration: 2033-08-14

Abstract

The utility model discloses a plasma catalytic oxidation waste gas treatment device which comprises a box body, a catalytic mechanism and a plasma reaction mechanism. According to the utility model, the microwave generator is turned on through the control panel, the microwave energy is contacted with the waste gas and converted into heat energy, the waste gas forms a plasma state under the excitation of high temperature and high energy, electrons and ions in reactants are excited and heated under the electromagnetic field effect of the microwave energy, so that the activation and conversion of the waste gas are promoted, the microwave realizes nonuniform heating on a molecular level, so that the reaction can be activated at a relatively low temperature, when the temperature detector detects that the temperature in the reaction chamber is too high, the water-cooling radiator can be turned on, and the coolant in the water inlet pipe and the water outlet pipe circularly flow through the plasma reaction mechanism to absorb and take away the heat in the reaction chamber, so that the reaction environment is ensured to be in a proper temperature range, and the catalytic reaction effect and the stability of the system are optimized.

Description

Plasma catalytic oxidation waste gas treatment device

Technical Field

The utility model relates to the technical field of waste gas treatment, in particular to a plasma catalytic oxidation waste gas treatment device.

Background

The technology aims to treat pollutants in industrial waste gas, vehicle tail gas and other discharged waste gases by interacting waste gas with plasma and combining the action of a catalyst to realize the oxidative conversion and removal of harmful substances in the waste gas.

The existing plasma catalytic oxidation waste gas treatment device has the following problems when in use: too high or too low a temperature may lead to plasma generation and instability of the catalytic reaction, as well as damage to the equipment.

Disclosure of utility model

The present utility model is directed to a plasma catalytic oxidation exhaust gas treatment device, which solves the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a plasma catalytic oxidation exhaust treatment device, includes box, catalytic unit and plasma reaction mechanism, the inside of box is provided with catalytic unit, catalytic unit includes catalytic bed, catalyst and dehumidification box, one side of catalytic unit is provided with the trachea, one side of tracheal is provided with plasma reaction mechanism, plasma reaction mechanism includes plasma cavity electric capacity, reaction chamber, microwave generator and spiral electrode, one side of plasma reaction mechanism is provided with detection mechanism, detection mechanism includes temperature detector, inlet tube, outlet pipe, water-cooling radiator, flow controller and sensor, one side of box is provided with check valve mechanism, check valve mechanism includes valve casing, ball valve and limiting plate, the surface of box is provided with the control screen, the below of check valve mechanism is provided with the air inlet, the opposite side of box is provided with the gas outlet.

Preferably, the bottom of the inner wall of the box body is in threaded connection with a catalytic bed, a catalyst is smeared on the periphery of the inner wall of the catalytic bed, the catalyst comprises platinum, and a dehumidifying box is clamped at the bottom of the inner wall of the catalytic bed

Preferably, one side threaded connection of catalyst bed has the trachea, one side threaded connection of trachea has plasma cavity electric capacity, one side joint of plasma cavity electric capacity has the reaction chamber, the material of reaction chamber is quartzy, the inside threaded connection of reaction chamber has two sets of microwave generator, one side welding of two sets of microwave generator has the spiral electrode.

Preferably, a temperature detector is connected to one side of the inner wall of the plasma cavity capacitor in a threaded manner, a water inlet pipe is embedded in the front face of the plasma cavity capacitor, a water outlet pipe is embedded in the back face of the plasma cavity capacitor, the water inlet pipe is connected with a water outlet pipe in a clamping manner, and a water cooling radiator is connected to the upper sides of the water inlet pipe and the water outlet pipe in a threaded manner.

Preferably, one side of the plasma cavity capacitor is connected with a flow controller in a threaded mode, and the surface of the flow controller is connected with a sensor in a threaded mode.

Preferably, one side threaded connection of flow controller has the trachea, tracheal one side threaded connection has the valve casing, the inside swing joint of valve casing has the ball valve, the bottom welding of valve casing has the limiting plate.

Preferably, the surface of the box body is connected with a control screen in a threaded manner, and the plasma reaction mechanism and the detection mechanism are electrically connected with the control screen.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, the microwave generator, the reaction chamber and the spiral electrode can be controlled to be opened by the control screen, the microwave generator generates high-frequency microwave energy, the microwave energy is transmitted into the reaction chamber by the spiral electrode, and after entering the reaction chamber, the microwave energy contacts with waste gas and is converted into heat energy, the waste gas forms a plasma state under the excitation of high temperature and high energy, electrons and ions in the reactant are excited and heated under the electromagnetic field effect of the microwave energy, so that the activation and conversion of the waste gas are promoted, the efficiency of catalytic oxidation reaction is improved, and the microwave realizes nonuniform heating on a molecular level, so that the reaction can be activated at a relatively low temperature;

2. According to the utility model, when the temperature detector detects that the temperature in the reaction chamber is too high, the water-cooling radiator can be opened through the control screen, so that the coolant in the water inlet pipe and the water outlet pipe circularly flows through the plasma reaction mechanism to absorb and take away the heat in the reaction chamber, the reaction environment is ensured to be in a proper temperature range, and the catalytic reaction effect and the system stability are optimized.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic view of the internal structure of the case of the present utility model.

FIG. 3 is a schematic view of the internal structure of the catalytic mechanism according to the present utility model.

FIG. 4 is a schematic view of the internal mechanism of the plasma reaction mechanism of the present utility model.

FIG. 5 is a schematic view of a one-way valve mechanism of the present utility model.

In the figure: 1. a case; 2. a catalytic mechanism; 201. a catalytic bed; 202. a catalyst; 203. a dehumidifying box; 3. an air pipe; 4. a plasma reaction mechanism; 401. a plasma cavity capacitance; 402. a reaction chamber; 403. a microwave generator; 404. a spiral electrode; 5. a detection mechanism; 501. a temperature detector; 502. a water inlet pipe; 503. a water outlet pipe; 504. a water-cooled radiator; 505. a flow controller; 506. a sensor; 6. a one-way valve mechanism; 601. a valve housing; 602. a ball valve; 603. a limiting plate; 7. a control screen; 8. an air inlet; 9. and an air outlet.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, an embodiment of the present utility model is provided: the utility model provides a plasma catalytic oxidation exhaust treatment device, including box 1, catalytic mechanism 2 and plasma reaction mechanism 4, the inside of box 1 is provided with catalytic mechanism 2, catalytic mechanism 2 includes catalytic bed 201, catalyst 202 and dehumidification box 203, one side of catalytic mechanism 2 is provided with trachea 3, one side of trachea 3 is provided with plasma reaction mechanism 4, plasma reaction mechanism 4 includes plasma cavity electric capacity 401, reaction chamber 402, microwave generator 403 and spiral electrode 404, one side of plasma reaction mechanism 4 is provided with detection mechanism 5, detection mechanism 5 includes temperature detector 501, inlet tube 502, outlet tube 503, water-cooling radiator 504, flow controller 505 and sensor 506, one side of box 1 is provided with check valve mechanism 6, check valve mechanism 6 includes valve casing 601, ball valve 602 and limiting plate 603, the surface of box 1 is provided with control screen 7, the below of check valve mechanism 6 is provided with air inlet 8, the opposite side of box 1 is provided with gas outlet 9.

The bottom of the inner wall of the box body 1 is in threaded connection with a catalytic bed 201, a catalyst 202 is smeared on the periphery of the inner wall of the catalytic bed 201, the components of the catalyst 202 are platinum, a dehumidifying box 203 is clamped at the bottom of the inner wall of the catalytic bed 201, after waste gas enters the catalytic bed 201, harmful substances in the waste gas can undergo oxidation reaction with the catalyst 202 and are converted into harmless substances or low-toxicity substances, so that waste purification and treatment are realized, a dehumidifying agent such as silicon dioxide can be placed in the dehumidifying box 203, the catalyst 202 and device components are protected, stable plasma environment is provided, corrosion is avoided, the catalytic reaction effect is improved, and the dehumidifying agent maintains the performance and reliability of a waste gas treatment device by removing moisture.

One side of the catalytic bed 201 is connected with an air pipe 3 in a threaded manner, one side of the air pipe 3 is connected with a plasma cavity capacitor 401 in a threaded manner, one side of the plasma cavity capacitor 401 is connected with a reaction chamber 402 in a clamping manner, the reaction chamber 402 is made of quartz, two groups of microwave generators 403 are connected with one side of the reaction chamber 402 in a threaded manner, a spiral electrode 404 is welded on one side of each of the two groups of microwave generators 403, the microwave generators 403 can be opened through a control screen 7, high-frequency microwave energy is generated by the microwave generators 403 and is transmitted into the reaction chamber 402 by the spiral electrode 404, the microwave energy contacts with waste gas and is converted into heat energy after entering the reaction chamber 402, the waste gas forms a plasma state under the excitation of the high temperature and the high energy, electrons and ions in the reactant are excited and heated under the electromagnetic field effect of the microwave energy, so that the activation and conversion of the waste gas are promoted, and the efficiency of catalytic oxidation reaction is improved.

The inner wall one side threaded connection of plasma cavity electric capacity 401 has temperature detector 501, the front of plasma cavity electric capacity 401 is embedded to have inlet tube 502, the back of plasma cavity electric capacity 401 is embedded to have outlet pipe 503, inlet tube 502 and outlet pipe 503 joint, the top threaded connection of inlet tube 502 and outlet pipe 503 has water-cooling radiator 504, when temperature detector 501 detects the temperature in the reaction chamber 402 too high, can open water-cooling radiator 504 through control panel 7, make the coolant circulation flow in inlet tube 502 and the outlet pipe 503 plasma reaction mechanism 4 absorb and take away the heat in the reaction chamber 402, in order to ensure that the reaction environment is in suitable temperature range, thereby optimize catalytic reaction's effect and system's stability.

One side of the plasma cavity capacitor 401 is connected with a flow controller 505 in a threaded manner, the surface of the flow controller 505 is connected with a sensor 506 in a threaded manner, and when waste gas enters the device, the flow controller 505 can be opened through the control screen 7 to control the amount of the waste gas entering the device, so that the reaction is ensured to be carried out under the ideal flow rate, and the optimal performance of the treatment effect is achieved.

One side threaded connection of flow controller 505 has trachea 3, and one side threaded connection of trachea 3 has valve casing 601, and the inside swing joint of valve casing 601 has ball valve 602, and the bottom welding of valve casing 601 has limiting plate 603, and when waste gas entered, can jack-up the inside ball valve 602 of valve casing 601 to get into through trachea 3, when no waste gas discharge in the waste gas case, ball valve 602 can fall on limiting plate 603, blocks up air inlet 8, thereby prevents the gaseous backward flow.

The surface of the box body 1 is connected with a control screen 7 in a threaded manner, and the plasma reaction mechanism 4 and the detection mechanism 5 are electrically connected with the control screen 7.

Working principle: when in use, the air inlet 8 is connected with the waste gas box, the waste gas box is opened to enable the waste gas to enter the device, then the flow controller 505 is opened through the control screen 7 to control the waste gas amount entering the device, so that the reaction is ensured to be carried out under the ideal flow rate to achieve the optimal performance of the treatment effect, when the waste gas enters, the ball valve 602 in the valve housing 601 is jacked up and enters through the air pipe 3, then the microwave generator 403 is opened through the control screen 7, the microwave generator 403 generates high-frequency microwave energy, the microwave energy is transmitted into the reaction chamber 402 by the spiral electrode 404, the microwave energy contacts with the waste gas and is converted into heat energy after entering the reaction chamber 402, the waste gas forms a plasma state under the excitation of the high temperature and the high energy, electrons and ions in the reactant 402 are excited and heated under the electromagnetic field effect of the microwave energy, so that the activation and the conversion of the waste gas are promoted, the efficiency of catalytic oxidation reaction is improved, when the temperature detector 501 detects that the temperature in the reaction chamber 402 is too high, the water cooling radiator 504 can be opened through the control screen 7, so that the coolant in the water inlet pipe 502 and the water outlet pipe 503 circularly flows through the plasma reaction mechanism 4 to absorb and take away the heat in the reaction chamber, then the waste gas can enter the catalytic bed 201, and harmful substances in the waste gas can be oxidized with the catalyst 202 and converted into harmless substances or low-toxicity substances, thereby realizing waste purification and treatment, simultaneously, the dehumidifying agent in the dehumidifying box 203 can protect the catalyst 202 and device parts, provide stable plasma environment, avoid corrosion and improve the catalytic reaction effect, and maintain the performance and reliability of the waste gas treatment device through removing water, the ball valve 602 falls on the limiting plate 603 to block the gas inlet 8, thereby preventing the gas from flowing back.

The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a plasma catalytic oxidation exhaust treatment device, includes box (1), catalytic mechanism (2) and plasma reaction mechanism (4), its characterized in that: the inside of box (1) is provided with catalytic mechanism (2), catalytic mechanism (2) are including catalytic bed (201), catalyst (202) and dehumidification box (203), one side of catalytic mechanism (2) is provided with trachea (3), one side of trachea (3) is provided with plasma reaction mechanism (4), plasma reaction mechanism (4) are including plasma cavity electric capacity (401), reaction chamber (402), microwave generator (403) and spiral electrode (404), one side of plasma reaction mechanism (4) is provided with detection mechanism (5), detection mechanism (5) are including temperature detector (501), inlet tube (502), outlet pipe (503), water-cooling radiator (504), flow controller (505) and sensor (506), one side of box (1) is provided with check valve mechanism (6), check valve mechanism (6) are including valve casing (601), ball valve (602) and limiting plate (603), the surface of box (1) is provided with control screen (7), check valve mechanism (6) below is provided with gas outlet (8), box (9) are provided with gas outlet (9).

2. The plasma catalytic oxidation exhaust treatment device according to claim 1, wherein: the catalytic bed (201) is connected to the bottom of the inner wall of the box body (1) in a threaded mode, a catalyst (202) is smeared on the periphery of the inner wall of the catalytic bed (201), the catalyst (202) comprises platinum, and a dehumidifying box (203) is clamped at the bottom of the inner wall of the catalytic bed (201).

3. The plasma catalytic oxidation exhaust treatment device according to claim 1, wherein: one side threaded connection of catalytic bed (201) has trachea (3), one side threaded connection of trachea (3) has plasma cavity electric capacity (401), one side joint of plasma cavity electric capacity (401) has reaction chamber (402), the material of reaction chamber (402) is quartzy, the inside threaded connection of reaction chamber (402) has two sets of microwave generator (403), one side welding of two sets of microwave generator (403) has spiral electrode (404).

4. The plasma catalytic oxidation exhaust treatment device according to claim 1, wherein: the plasma chamber capacitor (401) is characterized in that a temperature detector (501) is connected to one side of the inner wall of the plasma chamber capacitor (401) in a threaded mode, a water inlet pipe (502) is embedded in the front face of the plasma chamber capacitor (401), a water outlet pipe (503) is embedded in the back face of the plasma chamber capacitor (401), the water inlet pipe (502) is clamped with the water outlet pipe (503), and a water cooling radiator (504) is connected to the upper portions of the water inlet pipe (502) and the water outlet pipe (503) in a threaded mode.

5. The plasma catalytic oxidation exhaust treatment device according to claim 1, wherein: one side of the plasma cavity capacitor (401) is in threaded connection with a flow controller (505), and the surface of the flow controller (505) is in threaded connection with a sensor (506).

6. The plasma catalytic oxidation exhaust treatment device according to claim 1, wherein: one side threaded connection of flow controller (505) has trachea (3), one side threaded connection of trachea (3) has valve casing (601), the inside swing joint of valve casing (601) has ball valve (602), the bottom welding of valve casing (601) has limiting plate (603).

7. The plasma catalytic oxidation exhaust treatment device according to claim 1, wherein: the surface screw thread of box (1) is connected with control screen (7), plasma reaction mechanism (4), detection mechanism (5) and control screen (7) electric connection.