CN111287820B - Environment-friendly automobile exhaust handles a section of thick bamboo - Google Patents
Environment-friendly automobile exhaust handles a section of thick bamboo Download PDFInfo
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- CN111287820B CN111287820B CN202010084805.4A CN202010084805A CN111287820B CN 111287820 B CN111287820 B CN 111287820B CN 202010084805 A CN202010084805 A CN 202010084805A CN 111287820 B CN111287820 B CN 111287820B
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- Prior art keywords
- barrel
- driving
- block
- cylinder
- automobile exhaust
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/0214—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters with filters comprising movable parts, e.g. rotating filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The invention relates to the technical field of tail gas purification, and discloses an environment-friendly automobile tail gas treatment barrel which comprises a barrel body, wherein an air inlet barrel is arranged in the middle of the left end of the barrel body, an air outlet barrel is arranged in the middle of the right end of the barrel body, a filter cover is arranged at the right end of the air inlet barrel, a driving barrel is connected to the right end of the filter cover, a driving block is arranged on the left side inside the driving barrel, a driving rod is arranged at the left end of the driving block, the left end of the driving rod penetrates through the driving barrel and is arranged inside the air inlet barrel, a plurality of driving blades are arranged on the outer side of the driving rod inside the air inlet barrel, a telescopic block is arranged on the right side inside the driving barrel, a. According to the invention, the telescopic block can drive the telescopic filter block to move left and right, so that the contact time and contact distance between the automobile exhaust and the telescopic filter block are increased, the catalytic efficiency is improved, and meanwhile, the power cost is saved by introducing high-pressure automobile exhaust as power.
Description
Technical Field
The invention relates to the technical field of tail gas purification, in particular to an environment-friendly automobile tail gas treatment cylinder.
Background
Automobile exhaust is exhaust gas generated when an automobile is used, and contains hundreds of different compounds, wherein pollutants comprise solid suspended particles, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, lead, sulfur oxides and the like. The tail gas can not only directly harm human health, but also have a profound influence on the environment of human life. The sulfur dioxide in the tail gas has strong pungent smell, and the sulfur dioxide easily causes the generation of acid rain when reaching a certain concentration, so that soil and water sources are acidified, and the growth of crops and forests is influenced.
Therefore, the automobile is necessary to be provided with an exhaust treatment device, and the traditional automobile exhaust treatment device has the defects of low catalytic efficiency, incomplete treatment and direct emission of a large amount of pollutants in the exhaust. Chinese patent (publication No. 110559857A) discloses an environment-friendly automobile exhaust treatment cylinder, which comprises a cylinder, wherein two groups of cylinders are arranged on the left and right, pipelines are fixedly arranged on two sides which are far away from each other, the pipelines are communicated with the interior of the cylinder, the pipeline on the left side is communicated with an air inlet pipeline, the pipeline on the right side is communicated with an air outlet pipeline, an inner cavity is arranged in each cylinder, sliding cavities are arranged on the circumferential outer wall of the inner cavity, sliding cylinders are arranged in the sliding cavities in a sliding manner, fixed disks are fixedly arranged in the sliding cylinders, rotatable rotating bodies are arranged in the sliding cylinders, stand columns are fixedly arranged on the peripheries of the rotating bodies, curved catalytic blocks are fixedly arranged on the stand columns, although the device improves the treatment effect of automobile exhaust to a certain degree, the device still cannot treat the exhaust thoroughly in the actual exhaust treatment, and the internal structure is too complicated and the cost is too high, and therefore, further improvement is still required.
Disclosure of Invention
The invention aims to provide an environment-friendly automobile exhaust treatment cylinder to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an environment-friendly automobile exhaust handles section of thick bamboo, includes the barrel, barrel left end mid-mounting advances inflator, and barrel right-hand member mid-mounting goes out a gas section of thick bamboo, it installs the filter mantle to admit air the section of thick bamboo right-hand member, and the filter mantle right-hand member is connected with the driving cylinder, and the inside left side of driving cylinder installs the drive block, and the drive block left end installation actuating lever, actuating lever left end pass the driving cylinder locate inside the admission cylinder, are located the inside actuating lever outside of admission cylinder and are equipped with a plurality of drive blades, the inside right side of driving cylinder is equipped with flexible piece, long limit one side middle part of flexible piece is equipped with the guide slot, and the inside slip of guide slot is provided with the guide block, flexible piece right-.
As a further scheme of the invention: a plurality of fixing rods are installed on two sides of the outer wall of the driving cylinder and fixed on the inner wall of the cylinder body.
As a further scheme of the invention: and a plurality of fixing bolts are arranged in the middle of the outer sides of the air inlet cylinder and the air outlet cylinder.
As a further scheme of the invention: the middle part of the outer side of the driving cylinder is provided with a filter ring, and the other side of the filter ring is fixed in the cylinder body.
As a further scheme of the invention: and a telescopic spring is sleeved on the outer side of the telescopic rod between the right end of the telescopic block and the inner wall of the driving cylinder.
As a further scheme of the invention: the left side of the telescopic block and the right side of the driving block are provided with oblique sections with the same inclination angle.
As a further scheme of the invention: and tail gas catalysts are respectively arranged in the filter cover, the filter ring and the telescopic filter block.
As a further scheme of the invention: the inclination angle of the inclined section is 30-45 degrees.
As a further scheme of the invention: the guide block is fixed on the inner wall of the driving cylinder.
As a still further scheme of the invention: the telescopic block and the driving block are both of cylindrical structures.
Compared with the prior art, the invention has the beneficial effects that:
the utility model provides an environment-friendly automobile exhaust handles a section of thick bamboo, rational in infrastructure, the modern design through set up the oblique cross-section at the same inclination between flexible piece and drive block for flexible piece can drive flexible filter block and control the removal, makes automobile exhaust and the increase of contact time and contact distance between the flexible filter block, has improved catalysis efficiency greatly, and whole device installation simple and convenient, simultaneously through letting in highly compressed automobile exhaust for power, has also saved the power cost, and the practicality is strong, and the reliability is high.
Drawings
FIG. 1 is a schematic structural diagram of an environmentally friendly automobile exhaust treatment canister.
FIG. 2 is a schematic view of the internal structure of a driving cylinder in an environmentally friendly automobile exhaust treatment cylinder.
FIG. 3 is a schematic view of an external mounting structure of a driving cylinder in an environmentally friendly automobile exhaust treatment cylinder.
In the figure: 1-cylinder body, 2-air inlet cylinder, 3-fixing bolt, 4-driving rod, 5-driving blade, 6-driving cylinder, 7-filtering ring, 8-fixing rod, 9-telescopic rod, 10-telescopic filtering block, 11-air outlet cylinder, 12-driving block, 13-telescopic block, 14-guide groove, 15-guide block, 16-telescopic spring, 17-oblique section and 18-filtering cover.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
Referring to fig. 1 to 3, in the embodiment of the invention, an environment-friendly automobile exhaust treatment barrel comprises a barrel body 1, an air inlet barrel 2 is installed in the middle of the left end of the barrel body 1, the air inlet barrel 2 is used for introducing automobile exhaust, an air outlet barrel 11 is installed in the middle of the right end of the barrel body 1 and is used for discharging automobile exhaust, a filter cover 18 is installed at the right end of the air inlet barrel 2 and is used for primarily filtering the automobile exhaust, a driving barrel 6 is connected to the right end of the filter cover 18, a filter ring 7 is installed in the middle of the outer side of the driving barrel 6 and is used for secondarily filtering the automobile exhaust, the other side of the filter ring 7 is fixed in the barrel body 1, so that the filter ring 7 is sealed and fixed, non-filtering leakage of the automobile exhaust is avoided, a plurality of fixing rods 8 are installed on two sides of the outer wall of the driving barrel 6, the fixing rods 8 are, the left end of the driving rod 4 penetrates through the driving barrel 6 and is arranged inside the air inlet barrel 2, a plurality of driving blades 5 are arranged on the outer side of the driving rod 4 inside the air inlet barrel 2 and are used for generating rotating force, the rotation of the whole driving rod 4 is realized, further, the rotation of the driving block 12 provides a power source, a telescopic block 13 is arranged on the right side inside the driving barrel 6, the left side of the telescopic block 13 and the right side of the driving block 12 are provided with oblique sections 17 with the same inclination angle, the oblique sections can generate certain degree of front and back displacement while the driving block 12 rotates by arranging the oblique sections 17, further, the telescopic block 13 can drive the telescopic rod 9 to move back and forth by matching with the telescopic block 13, a telescopic spring 16 is sleeved on the outer side of the telescopic rod 9 between the right end of the telescopic block 13 and the inner wall of the driving barrel 6, and the telescopic block 13 can generate backward reset movement of the, the middle part of one side of the long edge of the telescopic block 13 is provided with a guide groove 14, the guide groove 14 is internally provided with a guide block 15 in a sliding manner, the guide block 15 is fixed on the inner wall of a driving cylinder 6, the front and back linear reciprocating motion of the whole telescopic filter block 10 is realized by arranging the guide block 15 and moving the telescopic filter block back and forth along the guide groove 14 so as to generate a resetting acting force on the front and back movement of the telescopic block 13, the right end of the telescopic block 13 is provided with a telescopic rod 9, the right end of the telescopic rod 9 penetrates through the driving cylinder 6 to be connected with the telescopic filter block 10, the telescopic filter block 10 is arranged in an air outlet cylinder 11 in a sliding manner so as to finally filter tail gas when the air outlet cylinder 11 discharges, the environment-friendly treatment effect of the tail gas is ensured, the middle parts of the outer sides of the air inlet cylinder 2 and the air outlet cylinder 11 are provided with a plurality of, thereby realizing the filtration of the automobile exhaust.
Example 2
In another embodiment of the invention, the device comprises a cylinder body 1, an air inlet cylinder 2 is arranged in the middle of the left end of the cylinder body 1, an air outlet cylinder 11 is arranged in the middle of the right end of the cylinder body 1, a filter cover 18 is arranged at the right end of the air inlet cylinder 2, a driving cylinder 6 is connected at the right end of the filter cover 18, a filter ring 7 is arranged in the middle of the outer side of the driving cylinder 6, the other side of the filter ring 7 is fixed in the cylinder body 1, a plurality of fixing rods 8 are arranged at two sides of the outer wall of the driving cylinder 6, the fixing rods 8 are fixed on the inner wall of the cylinder body 1, a driving block 12 is arranged at the left side in the driving cylinder 6, a driving rod 4 is arranged at the left end of the driving block 12, the left end of the driving rod 4 passes through the driving cylinder 6 and is arranged in the air inlet cylinder 2, a plurality, the outer side of a telescopic rod 9 between the right end of the telescopic block 13 and the inner wall of the driving barrel 6 is sleeved with a telescopic spring 16, the middle part of one long side of the telescopic block 13 is provided with a guide groove 14, the guide groove 14 is internally provided with a guide block 15 in a sliding manner, the guide block 15 is fixed on the inner wall of the driving barrel 6, the right end of the telescopic block 13 is provided with the telescopic rod 9, the right end of the telescopic rod 9 penetrates through the driving barrel 6 to be connected with a telescopic filter block 10, the telescopic filter block 10 is arranged in the air outlet barrel 11 in a sliding manner, the middle parts of the outer sides of the air inlet barrel 2 and the air outlet barrel 11 are provided with a plurality of fixing bolts 3, the filter cover 18, the filter ring 7 and the telescopic filter block 10 are respectively internally provided with a tail gas catalyst, the inclined section 17 has an inclination angle of 30-45 degrees, the inclined section is provided with an inclination angle, thereby ensuring the filtering treatment effect of the tail gas.
When the automobile exhaust gas filter is used, the exhaust cylinder 11 and the intake cylinder 2 at two ends of the whole device are fixed on an automobile exhaust cylinder through the fixing bolt 3, in the process of automobile exhaust gas emission, generated high-pressure exhaust gas enters the inside of the intake cylinder 2, so that the driving blade 5 can rotate, then the driving block 12 is driven to rotate through the action of the driving rod 4, the telescopic block 13 can be driven to move outwards under the action of the inclined section 17 and the guide block 15, the telescopic spring 16 is compressed at the moment, and then the telescopic spring 16 is reset, so that the telescopic block 13 can move back, the telescopic filter block 10 can move back and forth along the inside of the exhaust cylinder 11 through the action of the driving rod 9, the front and back filtration of the exhaust gas is realized, the filtration time is increased, the filtration distance is also increased, and the filtration effect is increased. The invention has reasonable structure and novel design, the telescopic block 13 can drive the telescopic filter block 10 to move left and right by arranging the inclined section 17 with the same inclination angle between the telescopic block 13 and the driving block 12, so that the contact time and the contact distance between automobile exhaust and the telescopic filter block 10 are increased, the catalytic efficiency is greatly improved, the whole device is simple and convenient to install, meanwhile, the power cost is saved by introducing high-pressure automobile exhaust as power, the practicability is strong, and the reliability is high.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides an environment-friendly automobile exhaust handles a section of thick bamboo, includes barrel (1), barrel (1) left end mid-mounting section of thick bamboo (2) of admitting air, barrel (1) right-hand member mid-mounting goes out a section of thick bamboo (11), its characterized in that, admit air a section of thick bamboo (2) right-hand member installation filter mantle (18), filter mantle (18) right-hand member is connected with driving barrel (6), inside left side installation driving block (12) of driving barrel (6), driving block (12) left end installation actuating lever (4), actuating lever (4) left end pass inside driving barrel (6) locate the section of thick bamboo of admitting air (2), be located the inside actuating lever (4) outside of admission barrel (2) and be equipped with a plurality of drive vanes (5), the inside right side of driving barrel (6) is equipped with flexible piece (13), long limit one side middle part of flexible piece (13) is equipped with guide slot (14), guide, telescopic link (9) are installed to flexible piece (13) right-hand member, and telescopic link (9) right-hand member passes driving cylinder (6) and is connected with flexible filter block (10), and flexible filter block (10) slide and locate inside gas outlet tube (11), a plurality of dead levers (8) of driving cylinder (6) outer wall both sides installation, dead lever (8) are fixed in barrel (1) inner wall, telescopic link (9) outside cover between flexible piece (13) right-hand member and driving cylinder (6) inner wall is equipped with expanding spring (16), flexible piece (13) left side and driving block (12) right side are equipped with oblique cross-section (17) at the same inclination, guide block (15) are fixed in driving cylinder (6) inner wall.
2. The environment-friendly automobile exhaust treatment cylinder according to claim 1, wherein a plurality of fixing bolts (3) are arranged in the middle of the outer sides of the air inlet cylinder (2) and the air outlet cylinder (11).
3. The environment-friendly automobile exhaust processing barrel according to claim 1, wherein a filter ring (7) is installed in the middle of the outer side of the driving barrel (6), and the other side of the filter ring (7) is fixed inside the barrel body (1).
4. The environment-friendly automobile exhaust treatment cylinder according to claim 3, wherein exhaust catalysts are respectively arranged in the filter cover (18), the filter ring (7) and the telescopic filter block (10).
5. The environment-friendly automobile exhaust gas treatment cylinder according to claim 1, wherein the inclined section (17) has an inclination angle of 30-45 °.
6. The environment-friendly automobile exhaust processing cylinder according to claim 1 or 5, wherein the telescopic block (13) and the driving block (12) are both cylindrical structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084805.4A CN111287820B (en) | 2020-02-10 | 2020-02-10 | Environment-friendly automobile exhaust handles a section of thick bamboo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084805.4A CN111287820B (en) | 2020-02-10 | 2020-02-10 | Environment-friendly automobile exhaust handles a section of thick bamboo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111287820A CN111287820A (en) | 2020-06-16 |
| CN111287820B true CN111287820B (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010084805.4A Active CN111287820B (en) | 2020-02-10 | 2020-02-10 | Environment-friendly automobile exhaust handles a section of thick bamboo |
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| CN (1) | CN111287820B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111999180A (en) * | 2020-08-19 | 2020-11-27 | 李修启 | Building material strength detection device |
| CN112576355B (en) * | 2021-01-13 | 2021-11-19 | 夏银萍 | Automobile exhaust funnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000157820A (en) * | 1998-11-25 | 2000-06-13 | Taketsuna Seisakusho:Kk | Dust extractor of filter for filtering dust collector |
| CN106285849B (en) * | 2016-08-24 | 2019-01-01 | 嵊州市鑫聚源厨具有限公司 | A kind of eco-friendly car gas emission device |
| CN106437984B (en) * | 2016-11-24 | 2018-11-27 | 福州大学 | A kind of diesel engine silencer with soot particles collecting function |
| CN108442997B (en) * | 2018-02-28 | 2019-07-09 | 重庆市铭鼎机械制造有限公司 | A kind of exhaust pipe |
| CN209630914U (en) * | 2019-01-28 | 2019-11-15 | 安徽俊中环保科技有限公司 | A kind of gas fired-boiler exhaust gas purification and treatment device |
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| CN111287820A (en) | 2020-06-16 |
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