Waste gas purification assembly utilizing plasma flame

Abstract

The utility model discloses a waste gas purification component utilizing plasma flame, which comprises a purification cavity, a gas inlet is arranged at one end of the purification cavity, and a stirring dispersion mechanism is fixedly connected in the purification cavity close to the gas inlet. Plasma flame generators are symmetrically and fixedly connected to the surface of the side, close to the air inlet, of the purification cavity, an exhaust pipe is fixedly connected to the end, away from the air inlet, of the purification cavity, a gas detection mechanism is arranged between the exhaust pipe and the purification cavity, and supporting legs are arranged at the bottoms of the purification cavity and the exhaust pipe correspondingly; according to the waste gas purification device disclosed by the utility model, entering waste gas is stirred through the stirring and dispersing mechanism, so that components in the waste gas are uniformly distributed in the purification cavity as far as possible, and the purified gas is stirred through the second stirring fan, so that the purified gas is in full contact with the gas component detection sensor, thereby improving the waste gas purification effect; and the detection accuracy of the purified gas is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to waste gas purification technical field especially, it is a kind of waste gas purification assembly using plasma flame. BACKGROUND

[0002] Plasma is the fourth state of matter, which is composed of electrons, ions and neutral particles. It has extremely high temperature and activity, and can initiate complex chemical reactions. Since the mid-20th century, plasma technology has been widely used in material processing, surface treatment, semiconductor manufacturing and other fields. With increasing concern about environmental issues, plasma has also been used for waste gas purification.

[0003] In the existing published patent, the Chinese utility model with application number 202020658612.0 is used for treating organic waste gas by plasma flame catalytic purification device, including shell, the one end of shell is equipped with waste gas inlet, the other end of shell is equipped with clean gas outlet, also is equipped with at least one plasma flame catalyst, the plasma flame catalyst is installed on or in the shell by uniform distribution symmetrical installation or tangential installation or circle cutting installation mode, catalytic degradation of cyclone waste gas is carried out by using plasma and plasma flame, and high-temperature plasma flame is generated by cooperating with plasma flame catalyst to catalytically combust waste gas.

[0004] However, the existing technology has some problems: the above-mentioned catalytic purification device only uses plasma flame to purify waste gas, but when waste gas passes through plasma flame, it cannot guarantee that waste gas is fully contacted with plasma flame, and a part of gas will leak through plasma flame, thereby affecting the purification effect of waste gas. In addition, the gas composition sensor cannot guarantee that the purified gas is fully and comprehensively detected before the purified gas is discharged, resulting in a part of unqualified gas being discharged, therefore we propose a waste gas purification assembly using plasma flame. UTILITY MODEL CONTENTS

[0005] In view of the problems existing in the prior art, the utility model aims to provide a waste gas purification assembly using plasma flame. The incoming waste gas is stirred by the stirring and dispersing mechanism, so that the components in the waste gas are evenly distributed in the purification cavity as much as possible. The purified gas is stirred by the second stirring fan, so that the purified gas is fully contacted with the gas composition detection sensor, thereby improving the waste gas purification effect and improving the detection accuracy of the purified gas.

[0006] The utility model discloses a waste gas purification assembly utilizing plasma flame, which comprises a purification cavity, an air inlet is arranged at one end of the purification cavity, an agitating and dispersing mechanism is fixedly connected to the purification cavity inside close to the air inlet, a plasma flame generator is fixedly connected to the surface of the purification cavity close to the air inlet in a symmetrical manner, an exhaust pipe is fixedly connected to the end of the purification cavity far from the air inlet, a gas detection mechanism is arranged between the exhaust pipe and the purification cavity, and support legs are arranged at the bottom of the purification cavity and the exhaust pipe.

[0007] Optionally, a connecting port is arranged at the bottom of the plasma flame generator, a connecting hole is arranged on the surface of the purification cavity in correspondence, the plasma flame generator is in communication with the inside of the purification cavity through the connecting port, and an air duct is fixedly connected to the side of the plasma flame generator.

[0008] Optionally, the agitating and dispersing mechanism comprises a grid air inlet partition plate, the grid air inlet partition plate is fixedly connected to the inside of the purification cavity, and air inlet grilles are evenly arranged on the grid air inlet partition plate.

[0009] Optionally, a dispersing and exhausting mechanism is fixedly connected to the side of the grid air inlet partition plate far from the plasma flame generator.

[0010] Optionally, the dispersing and exhausting mechanism is in the shape of a circular truncated cone, and annular holes are evenly arranged on the dispersing and exhausting mechanism.

[0011] Optionally, support plates are fixedly connected between the annular holes, and a first agitating fan is rotatably arranged in the middle of the side of the dispersing and exhausting mechanism far from the grid air inlet partition plate.

[0012] Optionally, the gas detection mechanism comprises a detection cavity, gas component detection sensors are fixedly connected to the inside of the detection cavity in a symmetrical manner, and a second agitating fan is fixedly connected to the side of the detection cavity close to the purification cavity.

[0013] Optionally, an exhaust pipe is fixedly connected to the side of the purification cavity far from the purification cavity, an exhaust port is arranged at one end of the exhaust pipe, and the exhaust port is arranged vertically upward.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The agitating and dispersing mechanism agitates the entering waste gas through the first agitating fan, so that the harmful components in the waste gas are uniformly mixed, and the subsequent plasma flame is facilitated to contact the waste gas and be fully purified.

[0016] 2. After the exhaust gas is discharged from the annular hole in the stirring and dispersing mechanism, it enters the purification chamber through the air inlet grid on the grid inlet baffle, so that the components in the exhaust gas are distributed as evenly as possible in the purification chamber. This slows down the speed of the gas when it passes through the plasma flame and allows it to fully contact the plasma flame, thereby improving the purification effect of the exhaust gas.

[0017] 3. The purified gas is agitated by the second stirring fan, which makes the purified gas components uniform and ensures full contact with the gas component detection sensor, thereby improving the detection accuracy of the purified gas.

[0018] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure provided by this utility model;

[0020] Figure 2 This is a schematic diagram of the interior of the purification chamber provided by this utility model;

[0021] Figure 3 This is a schematic diagram of the stirring and dispersing mechanism provided by this utility model;

[0022] Figure 4 This is a schematic diagram of the plasma flame generator provided by this utility model;

[0023] Figure 5 This is a schematic diagram of the catalytic oxidizer provided by this utility model.

[0024] In the diagram: 1. Purification chamber; 101. Air inlet; 2. Agitation and dispersion mechanism; 210. First agitator fan; 220. Dispersion and exhaust mechanism; 221. Annular hole; 222. Support plate; 230. Grid air inlet baffle; 231. Air inlet grille; 3. Plasma flame generator; 301. Connection port; 302. Ventilation pipe; 4. Gas detection mechanism; 401. Detection chamber; 402. Second agitator fan; 403. Gas composition detection sensor; 5. Exhaust pipe; 501. Exhaust port. Detailed Implementation

[0025] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0026] like Figures 1 to 5As shown, the utility model embodiment provides a kind of waste gas purification assembly using plasma flame, purification cavity 1 one end is provided with air inlet 101, stirring dispersion mechanism 2 is fixedly connected in the inside of purification cavity 1 close to air inlet 101, the surface of purification cavity 1 close to air inlet 101 side is fixedly connected with plasma flame generator 3 symmetrically, purification cavity 1 is fixedly connected with exhaust pipe 5 in the end away from air inlet 101, gas detection mechanism 4 is arranged between exhaust pipe 5 and purification cavity 1, the bottom of purification cavity 1, exhaust pipe 5 is all provided with support leg;

[0027] It needs to be explained that after waste gas enters after air inlet 101, first pass through the first stirring fan 210 in stirring dispersion mechanism 2 and then enter the annular hole 221 on dispersion exhaust mechanism 220 to be dispersed, the waste gas discharged from the annular hole 221 enters the air inlet grating 231 on the grid air inlet baffle 230, so that the waste gas is evenly distributed in the purification cavity 1, the plasma flame generated by the plasma flame generator 3 contacts the waste gas as much as possible, and the toxic gas in the waste gas is decomposed and purified, the gas after purification is subjected to secondary purification by the catalytic oxidizer at the end of the purification cavity 1, so that the harmful gas components are decomposed, and the waste gas is discharged from the exhaust pipe 5 after being detected by the gas component detection sensor 403 in the detection cavity 401.

[0028] In the embodiment of the present application, preferably, a connecting port 301 is formed in the bottom of the plasma flame generator 3, a connecting hole is formed in the surface of the purification cavity 1, the plasma flame generator 3 is in communication with the inside of the purification cavity 1 through the connecting port 301, and an air duct 302 is fixedly connected to the side surface of the plasma flame generator 3.

[0029] It needs to be explained that the air duct 302 is connected with a gas supply device, the plasma flame generator 3 ionizes the supplied gas to form a plasma flame, the plasma flame generated by the plasma flame generator 3 is injected through the connecting port 301, the harmful gas components in the waste gas are pyrolyzed into harmless gases such as carbon dioxide at high temperature, and finally discharged through the exhaust pipe 5, which has the advantages of high purification efficiency and strong adaptability.

[0030] In the embodiment of the present application, preferably, the stirring dispersion mechanism 2 comprises a grid air inlet baffle 230, the grid air inlet baffle 230 is fixedly connected to the inside of the purification cavity 1, and the air inlet grating 231 is uniformly formed in the grid air inlet baffle 230.

[0031] It needs to be explained that the grid air inlet baffle 230 uniformly sends the waste gas dispersed by the stirring dispersion mechanism 2 from the air inlet grating 231 into the purification cavity 1, so that the waste gas can be fully contacted with the plasma flame for decomposition and purification.

[0032] In the embodiment of the present application, preferably, the grid air inlet baffle 230 is fixedly connected with a dispersion exhaust mechanism 220 on the side away from the plasma flame generator 3.

[0033] It should be noted that the dispersion exhaust mechanism 220 ensures that the exhaust gas is uniformly dispersed into the purification cavity 1 by dispersing the incoming exhaust gas.

[0034] In the embodiment of the present application, preferably, the dispersion exhaust mechanism 220 is in the shape of a circular truncated cone, and annular holes 221 are uniformly arranged on the dispersion exhaust mechanism 220.

[0035] It should be noted that the exhaust gas is dispersed through the annular holes 221 to the front of the grid air inlet baffle 230, and then is sent into the purification cavity 1 by the nearest air inlet grid 231, so that it is uniformly distributed in the purification cavity 1.

[0036] In the embodiment of the present application, preferably, support plates 222 are fixedly connected between the annular holes 221, and a first stirring fan 210 is rotatably arranged in the middle of the side of the dispersion exhaust mechanism 220 away from the grid air inlet baffle 230.

[0037] It should be noted that the first stirring fan 210 stirs the incoming exhaust gas, uniformly mixes the harmful components in the exhaust gas, and facilitates subsequent full purification of the exhaust gas after the plasma flame contacts the exhaust gas.

[0038] In the embodiment of the present application, preferably, the gas detection mechanism 4 comprises a detection cavity 401, gas component detection sensors 403 are symmetrically fixedly connected in the cavity of the detection cavity 401, and a second stirring fan 402 is fixedly connected to the side of the detection cavity 401 close to the purification cavity 1.

[0039] It should be noted that the second stirring fan 402 stirs the detected gas, uniformly distributes the components in the gas, makes the purified gas fully contact the gas component detection sensors 403, and avoids the situation that the detection is wrong due to uneven distribution of the gas components.

[0040] In the embodiment of the present application, preferably, the purification cavity 1 is fixedly connected with an exhaust pipe 5 on the side away from the purification cavity 1, an exhaust port 501 is arranged at one end of the exhaust pipe 5, and the arrangement direction of the exhaust port 501 is vertically upward.

[0041] It should be noted that the arrangement direction of the exhaust port 501 is vertically upward, so that the high-temperature purified gas is discharged faster, and at the same time, the influence of the over-standard discharged carbon dioxide and other gases on the surrounding low-altitude air components is avoided.

[0042] The use process of the embodiment is as follows:

[0043] The exhaust gas is sent from the air inlet 101, first passes through the first stirring fan 210 on the stirring dispersion mechanism 2 to be stirred, and the components in the exhaust gas are uniformly distributed, then passes through the multiple sets of annular holes 221 on the dispersion exhaust mechanism 220, the exhaust gas dispersed and distributed in front of the grid air inlet baffle 230 is discharged through the annular holes 221, the exhaust gas enters the inside of the purification cavity 1 through the air inlet grid 231 in proximity, then contacts the high-temperature plasma flame generated by the multiple sets of plasma flame generators 3 and is injected into the purification cavity 1 through the connecting port 301, the multiple sets of plasma flames cross cover the space of the purification cavity 1, the harmful components in the high-temperature exhaust gas are decomposed into harmless components such as carbon dioxide, then passes through the catalytic oxidizer at the end of the inside of the purification cavity 1 to be secondarily purified, the harmful components that are not completely decomposed are completely purified, finally the purified clean gas is stirred by the second stirring fan 402, the gas components are stirred again to be uniform, fully contacts and detects the gas component detection sensor 403 in the detection cavity 401 to ensure the accuracy of the gas detection, and the clean gas that meets the detection standard is discharged upward through the exhaust port 501 on the exhaust pipe 5.

[0044] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste gas purification assembly utilizing plasma flame, comprising a purification chamber (1), characterized in that: The purification chamber (1) is provided with an air inlet (101) at one end. A stirring and dispersing mechanism (2) is fixedly connected inside the purification chamber (1) near the air inlet (101). A plasma flame generator (3) is symmetrically fixedly connected to the surface of the purification chamber (1) near the air inlet (101). An exhaust pipe (5) is fixedly connected to the end of the purification chamber (1) away from the air inlet (101). A gas detection mechanism (4) is provided between the exhaust pipe (5) and the purification chamber (1). Support legs are provided at the bottom of both the purification chamber (1) and the exhaust pipe (5).

2. The waste gas purification component utilizing plasma flame according to claim 1, characterized in that: The plasma flame generator (3) has a connection port (301) at its bottom, and the purification chamber (1) has a corresponding connection hole on its surface. The plasma flame generator (3) and the interior of the purification chamber (1) are connected through the connection port (301). A ventilation pipe (302) is fixedly connected to the side of the plasma flame generator (3).

3. The waste gas purification component utilizing plasma flame according to claim 1, characterized in that: The stirring and dispersing mechanism (2) includes a grid air intake baffle (230), which is fixedly connected to the interior of the purification chamber (1), and the grid air intake baffle (230) is uniformly provided with air intake grilles (231).

4. The waste gas purification component utilizing plasma flame according to claim 3, characterized in that: A dispersed exhaust mechanism (220) is fixedly connected to the side of the grid air intake baffle (230) away from the plasma flame generator (3).

5. The waste gas purification component utilizing plasma flame according to claim 4, characterized in that: The dispersed exhaust mechanism (220) is frustum-shaped, and annular holes (221) are uniformly opened on the dispersed exhaust mechanism (220).

6. The waste gas purification component utilizing plasma flame according to claim 5, characterized in that: A support plate (222) is fixedly connected between the annular holes (221), and a first agitator fan (210) is rotatably mounted on the side of the dispersed exhaust mechanism (220) away from the grid air intake baffle (230).

7. The waste gas purification component utilizing plasma flame according to claim 1, characterized in that: The gas detection mechanism (4) includes a detection chamber (401), in which gas composition detection sensors (403) are symmetrically fixedly connected, and a second stirring fan (402) is fixedly connected to the side of the detection chamber (401) near the purification chamber (1).

8. The waste gas purification component utilizing plasma flame according to claim 1, characterized in that: An exhaust pipe (5) is fixedly connected to the side of the purification chamber (1) away from the purification chamber (1). An exhaust port (501) is opened at one end of the exhaust pipe (5), and the exhaust port (501) is opened vertically upward.

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