Waste gas purifier for plasma heat treatment

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By incorporating a cooling mechanism and a multi-layer filtration system into the exhaust gas purifier, the problems of short filter component lifespan and low purification efficiency in high-temperature exhaust gas treatment are solved, achieving efficient exhaust gas purification and low-cost maintenance.

CN223668916UActive Publication Date: 2025-12-16WUHAN FENGERSHUN HEAT TREATMENT EQUIP CO LTD

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Patent Information

Application Number: CN202520212359.9
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2025-02-11
Publication Date: 2025-12-16
Estimated Expiration: 2035-02-11

AI Technical Summary

Technical Problem

Existing exhaust gas purifiers struggle to effectively reduce exhaust gas temperature during high-temperature, high-energy heat treatment, resulting in shortened filter component lifespan and high replacement costs. Additionally, their purification efficiency is low, failing to achieve high-standard purification results.

Method used

The cooling mechanism reduces the temperature of the exhaust gas through a water storage box, a guide pipe, and an atomizing nozzle. Combined with a multi-layer filtration system consisting of a HEPA filter, a microporous filter, and an activated carbon adsorption screen, it achieves multi-stage filtration and purification, and facilitates the replacement of filter elements.

Benefits of technology

It effectively reduces exhaust gas temperature, improves purification efficiency, extends the life of filter components, ensures high purification standards, and reduces maintenance costs.

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Abstract

The utility model relates to the field of waste gas purification equipment, and discloses a waste gas purifier for plasma heat treatment, which comprises a purification barrel, a cooling mechanism is arranged at the lower end in the purification barrel, the cooling mechanism comprises a water storage box fixedly connected to the inner bottom surface of the purification barrel, and a through groove is formed in the center of the upper surface of the water storage box. The inner wall of the through groove is fixedly connected with a flow guide pipe, and the upper end of the outer wall of the flow guide pipe is fixedly connected with a plurality of flow dividing guide pipes. According to the utility model, the flow guide pipe and the flow division guide pipe are matched, so that waste gas is divided and respectively enters the water storage box, and when the waste gas is in contact with cooling water, the cooling water preliminarily reduces the temperature in the waste gas, increases the viscosity among impurity molecules in the waste gas, mutually condenses impurities in the waste gas, increases the overall weight, and avoids blowing out along with the waste gas; therefore, the effect of preliminary filtering is achieved while preliminary cooling is conducted, purified water is atomized through an arranged atomization nozzle, and therefore the temperature of waste gas can be further reduced.

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Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas purification equipment field especially, relates to a waste gas purification machine for plasma heat treatment. BACKGROUND

[0002] With the continuous advancement of industrialization process, especially in the metal heat treatment, welding, coating and other fields, plasma technology is widely used in various heat treatment processes, however, in these high-temperature and high-energy heat treatment processes, a large amount of harmful waste gas and pollutants, such as nitrogen oxides (NOx), volatile organic compounds (VOCs), hydrocarbons, etc., are often generated, which not only pollute the environment, but also may threaten the health of operators, therefore, how to effectively remove these harmful gases has become a problem that needs to be solved in the industrial heat treatment process, for this purpose, a waste gas purification machine for plasma heat treatment is proposed.

[0003] The existing waste gas purification machine cannot effectively reduce the heat contained in the waste gas when filtering the gas, so the service life of the filter assembly as a whole is easily reduced when filtering high-temperature gas, thus increasing the maintenance and replacement cost in the later period, and the existing waste gas purification machine can purify the gas to a certain extent, but it needs a certain time for replacement.

[0004] Therefore, the skilled in the art to solve the above technical problems, and put forward a kind of waste gas purification machine for plasma heat treatment, to solve the above technical problems. UTILITY MODEL CONTENT

[0005] The utility model discloses a waste gas purification machine for plasma heat treatment, which is proposed to solve the shortcomings of the prior art, and comprises a purification mechanism, a HEPA filter screen, a microporous filter screen and an activated carbon adsorption screen.

[0006] To achieve the above object, the utility model provides the following technical scheme.

[0007] The utility model provides an exhaust gas purification machine for plasma heat treatment, including the purification bucket, the lower end inside the purification bucket is provided with cooling mechanism, cooling mechanism includes the water storage box fixedly connected in the bottom surface in the purification bucket, the upper surface of water storage box is equipped with the through slot in the center, the inner wall of through slot is fixedly connected with the flow guide pipe, the outer wall of flow guide pipe is fixedly connected with a plurality of shunt catheter in the upper end, cooling mechanism still includes the flow ring fixedly connected outside the purification bucket, the inner wall of the middle part of purification bucket is fixedly connected with a plurality of atomizing nozzles,

[0008] The upper end inside the purification bucket is provided with purification mechanism, the inner wall of the lower end of the clamping ring is slid with the HEPA filter screen, and the upper end of the HEPA filter screen is provided with a microporous filter screen and an activated carbon adsorption screen in sequence.

[0009] Through the above technical scheme, the water storage box, the flow guide pipe and the atomizing nozzle in the cooling mechanism can effectively reduce the temperature of the exhaust gas and prevent the influence of high-temperature components contained in the exhaust gas on the subsequent purification process, thereby improving the purification efficiency. The HEPA filter screen, the microporous filter screen and the activated carbon adsorption screen in the purification mechanism are combined to form a multi-layer filtration system, which can effectively remove particulate matter, gas pollutants and harmful substances in the exhaust gas, and ensure that the exhaust gas purification meets high standards.

[0010] Further, a plurality of support columns are fixedly connected to the edge of the middle part of the upper surface of the purification bucket, and a water stop plate is fixedly connected to the upper surface of each support column. An arc-shaped flow distribution block is fixedly connected to the center of the lower surface of the water stop plate.

[0011] Through the above technical scheme, the water stop plate can effectively prevent rainwater from entering, and the arc-shaped flow distribution block can more conveniently discharge other substances from the surrounding.

[0012] Further, a lid plate is hingedly connected to one side of the purification bucket wall, and a handle is fixedly connected to the outer wall of one side of the lid plate.

[0013] Through the above technical scheme, the handle can more conveniently open the lid plate, and the lid plate can better keep the inside of the purification bucket airtight.

[0014] Further, a communication valve is fixedly connected to the outer wall of one side of the flow ring, the communication valve is in through connection with the flow ring, and the atomizing nozzle is in through connection with the flow ring.

[0015] Through the above technical scheme, the communication valve can more conveniently connect the external water pipe with the flow ring.

[0016] Further, the upper surface of the water storage box is provided with a water storage groove at the edge, the inside of the water storage groove is provided with cooling liquid, and one end of the shunt conduit penetrates into the inside of the cooling liquid.

[0017] Through the above technical scheme, the cooling liquid can conveniently reduce the heat in the exhaust gas.

[0018] Further, the water injection valve is fixedly connected to one side of the purification barrel, and the water injection valve is in communication with the water storage box.

[0019] Through the above technical scheme, the water injection valve can conveniently supplement the cooling liquid in the water storage box.

[0020] Further, the lower surface of the flow guide pipe is in communication with an air inlet arc plate.

[0021] Through the above technical scheme, the air inlet arc plate can conveniently make the gas enter the inside of the flow guide pipe.

[0022] Further, the sewage valve is fixedly connected to one side of the lower surface of the purification barrel, and the sewage valve is in communication with the water storage box.

[0023] Through the above technical scheme, the sewage valve can conveniently discharge the dirt in the water storage box.

[0024] The utility model has the advantages of the following beneficial effects:

[0025] 1. The utility model discloses a waste gas purification machine for plasma heat treatment, through the cooling mechanism, the flow guide pipe and the shunt conduit are matched, the entering waste gas is shunted, and the waste gas respectively enters the inside of the water storage box, when the waste gas contacts the cooling water, the temperature of the waste gas is preliminarily cooled through the cooling water, then the viscosity between the impurity molecules in the waste gas is increased through the cooling water, so that the impurities in the waste gas are condensed, the overall weight is increased, and the waste gas is prevented from floating out, so that the preliminary cooling plays a role of preliminary filtering, then the pure water is atomized through the atomizing nozzle, and the temperature of the waste gas can be further reduced, so that the cooling mechanism can play the roles of cooling and filtering.

[0026] 2. The utility model discloses a waste gas purification machine for plasma heat treatment, through the purification mechanism, the small particles in the waste gas are filtered out through the HEPA filter screen, the water content in the air is controlled at the same time, then the micro-porous filter screen and the activated carbon adsorption screen are used for secondary filtering, then the HEPA filter screen, the micro-porous filter screen and the activated carbon adsorption screen can be taken out from the inside of the snap ring and replaced by opening the cover plate. DRAWINGS

[0027] Figure 1 A shaft drawing of the waste gas purification machine for plasma heat treatment is provided in the utility model;

[0028] Figure 2 A structure schematic view of the water blocking plate in the waste gas purification machine for plasma heat treatment is provided in the utility model;

[0029] Figure 3 A sectional view of the purification barrel in the waste gas purification machine for plasma heat treatment is provided in the utility model;

[0030] Figure 4 A shaft drawing of the water storage box in the waste gas purification machine for plasma heat treatment is provided in the utility model;

[0031] Figure 5 A structure schematic view of the shunt conduit in the waste gas purification machine for plasma heat treatment is provided in the utility model.

[0032] Legend:

[0033] 1, purification barrel;

[0034] 2, cooling mechanism; 201, flow ring; 202, atomizing nozzle; 203, flow guide pipe; 204, shunt conduit; 205, cooling liquid; 206, blowdown valve; 207, air inlet arc plate; 208, water storage box; 209, water storage tank; 210, through groove;

[0035] 3, water blocking plate; 4, support column; 5, cover plate;

[0036] 6, purification mechanism; 601, snap ring; 602, HEPA filter screen; 603, microporous filter screen; 604, activated carbon adsorption screen;

[0037] 7, handle; 8, communication valve; 9, water filling valve; 10, arc-shaped shunt block. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0039] With reference to Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the utility model is as follows:

[0040] The utility model provides an exhaust gas purifier for plasma heat treatment, including purifying bucket 1, the lower end inside purifying bucket 1 is provided with cooling mechanism 2, and cooling mechanism 2 includes the fixed connection of water storage box 208 in the bottom surface in purifying bucket 1, the upper surface of water storage box 208 is provided with through slot 210 at the center, the inner wall of through slot 210 is fixedly connected with flow guide pipe 203, a plurality of shunt catheter 204 are fixedly connected to the upper end of the outer wall of flow guide pipe 203, and cooling mechanism 2 further includes flow circulation ring 201 fixedly connected to the outer wall of purifying bucket 1, and the middle part of the inner wall of purifying bucket 1 is fixedly connected with a plurality of atomizing nozzles 202;

[0041] The upper end inside purifying bucket 1 is provided with purifying mechanism 6, and purifying mechanism 6 includes a plurality of clamping rings 601 fixedly connected to the upper end of the inner wall of purifying bucket 1, and the inner wall of the lower end clamping ring 601 is slidably provided with HEPA filter screen 602, and the upper end of HEPA filter screen 602 is sequentially provided with microporous filter screen 603 and activated carbon adsorption screen 604;

[0042] Through water storage box 208, flow guide pipe 203 and atomizing nozzle 202 in cooling mechanism 2, the temperature of exhaust gas can be effectively reduced, the influence of high-temperature components contained in exhaust gas on subsequent purification process is prevented, thereby improving the purification efficiency, and HEPA filter screen 602, microporous filter screen 603 and activated carbon adsorption screen 604 in purifying mechanism 6 are combined to form a multi-layer filtration system, which can effectively remove particulate matter, gas pollutants and harmful substances in exhaust gas, and ensure that exhaust gas purification reaches a higher standard.

[0043] With reference to Figure 1 , Figure 2 and Figure 4 , a plurality of support columns 4 are fixedly connected to the edge of the middle part of the upper surface of purifying bucket 1, the upper surfaces of the support columns 4 are all fixedly connected with water stop plates 3, the center of the lower surface of each water stop plate 3 is fixedly connected with an arc-shaped shunt block 10, the water stop plates 3 can effectively prevent rainwater from entering, and the arc-shaped shunt blocks 10 can more conveniently discharge other substances from the surroundings, one side of the wall body of purifying bucket 1 is hingedly connected with a cover plate 5, one side of the outer wall of the cover plate 5 is fixedly connected with a handle 7, the handle 7 can more conveniently open the cover plate 5, and the cover plate 5 can better keep the inside of purifying bucket 1 airtight.

[0044] With reference to Figure 1 and Figure 3The outer wall of one side of the flow ring 201 is fixedly connected with a communication valve 8, the communication valve 8 is in through connection with the flow ring 201, the atomizing nozzle 202 is in through connection with the flow ring 201, the communication valve 8 is arranged to conveniently connect the external water pipe with the flow ring 201, the edge of the upper surface of the water storage box 208 is provided with a water storage groove 209, the water storage groove 209 is internally provided with cooling liquid 205, one end of each of the shunt conduits 204 penetrates into the cooling liquid 205, and the cooling liquid 205 is arranged to conveniently reduce the heat in the waste gas.

[0045] With reference to Figure 1 and 5 The outer wall of one side of the purification bucket 1 is fixedly connected with a water injection valve 9, the water injection valve 9 is in through connection with the water storage box 208, the water injection valve 9 is arranged to conveniently supplement the cooling liquid 205 in the water storage box 208, the lower surface of the flow guide pipe 203 is in through connection with an air inlet arc plate 207, the air inlet arc plate 207 is arranged to conveniently make the gas enter the inside of the flow guide pipe 203, one side of the lower surface of the purification bucket 1 is fixedly connected with a blowdown valve 206, the blowdown valve 206 is in through connection with the water storage box 208, and the blowdown valve 206 is arranged to conveniently discharge the dirt in the water storage box 208.

[0046] Working principle: in use, the external water source is connected with the communication valve 8, then the water injection valve 9 is used to pour the cooling water into the water storage tank, the air inlet arc plate 207 is connected with the waste gas outlet, then the waste gas enters the inside of the flow guide pipe 203, then the waste gas is shunted through the multiple shunt conduits 204, then the shunted waste gas enters the inside of the water storage box 208, when the waste gas contacts the cooling water, the temperature of the waste gas is preliminarily reduced by the cooling water, then the viscosity between the impurity molecules in the waste gas is increased by the cooling water, so that the impurities in the waste gas are condensed, the overall weight is increased, and the impurities are precipitated in the water storage groove 209, thus avoiding floating out with the waste gas, therefore, the preliminary cooling plays a role of preliminary filtering, then the pure water is atomized and sprayed out through the atomizing nozzle 202, then the atomized water contacts the waste gas, so that the temperature of the waste gas is further reduced, then the waste gas floats upwards, the small particles in the waste gas are filtered out through the HEPA filter screen 602, and the water content in the air is controlled at the same time, then the waste gas is secondarily filtered through the microporous filter screen 603 and the activated carbon adsorption screen 604, when the purification mechanism 6 needs to be replaced, the cover plate is opened, then the HEPA filter screen 602, the microporous filter screen 603 and the activated carbon adsorption screen 604 are pulled out from the inside of the snap ring 601 and are replaced.

[0047] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. An exhaust gas purifier for plasma heat treatment, comprising a purifying tank (1), characterized in that: The lower end of the purification barrel (1) is provided with a cooling mechanism (2), the cooling mechanism (2) comprises a water storage box (208) fixedly connected to the inner bottom of the purification barrel (1), a through groove (210) is formed in the center of the upper surface of the water storage box (208), a flow guide pipe (203) is fixedly connected to the inner wall of the through groove (210), a plurality of shunt pipes (204) are fixedly connected to the outer wall of the flow guide pipe (203), the cooling mechanism (2) further comprises a flow ring (201) fixedly connected to the outer wall of the purification barrel (1), a plurality of atomizing nozzles (202) are fixedly connected to the middle of the inner wall of the purification barrel (1). The upper end of the purification barrel (1) is provided with a purification mechanism (6), the purification mechanism (6) comprises a plurality of clamping rings (601) fixedly connected to the inner wall of the purification barrel (1), a HEPA filter screen (602) is slidably arranged on the inner wall of the clamping ring (601), a microporous filter screen (603) and an activated carbon adsorption screen (604) are sequentially arranged on the upper end of the HEPA filter screen (602).

2. The exhaust gas purifier for a plasma heat treatment apparatus according to claim 1, characterized by: A plurality of support columns (4) are fixedly connected to the edge of the middle of the upper surface of the purification barrel (1), a water blocking plate (3) is fixedly connected to the upper surface of each support column (4), an arc-shaped shunt block (10) is fixedly connected to the center of the lower surface of the water blocking plate (3).

3. The exhaust gas purifier for a plasma heat treatment apparatus according to claim 1, characterized by: A cover plate (5) is hingedly connected to one side of the wall of the purification barrel (1), a handle (7) is fixedly connected to the outer wall of one side of the cover plate (5).

4. The exhaust gas purifier for a plasma heat treatment apparatus according to claim 1, characterized by: A communication valve (8) is fixedly connected to the outer wall of one side of the flow ring (201), the communication valve (8) is in through connection with the flow ring (201), and the atomizing nozzle (202) is in through connection with the flow ring (201).

5. The exhaust gas purifier for a plasma heat treatment apparatus according to claim 1, characterized by: A water storage groove (209) is formed in the edge of the upper surface of the water storage box (208), a cooling liquid (205) is arranged in the water storage groove (209), and one end of each shunt pipe (204) penetrates into the cooling liquid (205).

6. The exhaust gas purifier for a plasma heat treatment apparatus according to claim 1, characterized by: A water injection valve (9) is fixedly connected to the outer wall of one side of the purification barrel (1), and the water injection valve (9) is in through connection with the water storage box (208).

7. The exhaust gas purifier for a plasma heat treatment apparatus according to claim 1, characterized by: The lower surface of the flow guide pipe (203) is in through connection with an air inlet arc plate (207).

8. The exhaust gas purifier for a plasma heat treatment apparatus according to claim 1, characterized by: A sewage valve (206) is fixedly connected to one side of the lower surface of the purification barrel (1), and the sewage valve (206) is in through connection with the water storage box (208).