CN108331648B - Dedicated aircraft tail gas cleanup unit of aerospace - Google Patents

Dedicated aircraft tail gas cleanup unit of aerospace Download PDF

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Publication number
CN108331648B
CN108331648B CN201810082380.6A CN201810082380A CN108331648B CN 108331648 B CN108331648 B CN 108331648B CN 201810082380 A CN201810082380 A CN 201810082380A CN 108331648 B CN108331648 B CN 108331648B
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China
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polygonal
tail gas
layer
filter screen
end cover
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CN201810082380.6A
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Chinese (zh)
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CN108331648A (en
Inventor
倪惠芳
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/009Exhaust 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 having two or more separate purifying devices arranged in series
    • F01N13/0093Exhaust 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 having two or more separate purifying devices arranged in series the purifying devices are of the same type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/08Other arrangements or adaptations of exhaust conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/18Construction facilitating manufacture, assembly, or disassembly
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021Exhaust 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses an aircraft tail gas purification device special for aerospace, which comprises a polygonal purification box, an end cover, a bottom cover and a hollow polygonal prism, wherein the end cover is rotatably arranged at one end face of the polygonal purification box, the other end of the polygonal purification box is fixedly provided with the bottom cover, the hollow polygonal prism fixed on the surface of the bottom cover is arranged at the center position in the polygonal purification box, a partition plate is fixedly arranged between the hollow polygonal prism and each corner of the polygonal purification box, and a first filter screen layer, an active carbon filter layer, a plant cleaning filter layer and a second filter screen layer are sequentially arranged between the polygonal purification box and the hollow polygonal prism in a sliding manner in the direction from the end cover to the bottom cover; the invention has simple structure and convenient use, can purify the tail gas of the airplane more effectively, ensures the air quality, is convenient to replace the purifying device and has lower manufacturing cost.

Description

Dedicated aircraft tail gas cleanup unit of aerospace
Technical Field
The invention relates to the technical field of aerospace, in particular to a special aircraft tail gas purification device for aerospace.
Background
The tail gas pollution refers to the pollution of the discharged tail gas to the atmosphere, such as the incomplete combustion of motor vehicle fuel. Mainly comprises the following steps: carbon monoxide, nitrogen oxides, hydrocarbons. Carbon monoxide is an intermediate product of hydrocarbon fuel combustion, is mainly generated due to incomplete combustion of hydrocarbons under the condition of local oxygen deficiency or low temperature, and is mixed in the exhaust gas of the internal combustion engine to be discharged. The amount of nitrogen oxide discharged depends on factors such as combustion temperature, time, and air-fuel ratio. From the combustion process, more than 95% of the nitrogen oxides emitted may be nitrogen monoxide, the remainder being nitrogen dioxide. The case that people are poisoned by nitric oxide is not found, but nitrogen dioxide is a reddish brown respiratory tract irritant gas, the odor threshold value is about 1.5 times of the air quality, and the influence on the human body is great. Because the water solubility of the tail gas purifying device is low, the tail gas is not easy to be absorbed by an upper respiratory tract and go deep into the lower respiratory tract and lung, diseases such as bronchitis, pulmonary edema and the like are caused, the environment protection is promoted day by day, the tail gas of an airplane needs to be further processed to ensure the quality of air, the generated tail gas needs to be purified and then discharged into the atmosphere besides the further combustion of fuel, the existing purifying devices have more types and uneven quality, but most of the purifying devices have the phenomenon of incomplete purification, and most of the tail gas is discharged after being not purified due to the fact that a large amount of tail gas is poured in once, so that a new technical means is needed to solve the problem, the tail gas is purified more thoroughly, and the safety of the environment is protected.
Disclosure of Invention
The invention aims to provide an aircraft tail gas purification device special for aerospace, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an aircraft tail gas purification device special for aerospace comprises a multi-edge purification box, an end cover, a bottom cover and a hollow multi-edge prism, wherein the end cover is rotatably arranged at one end face of the multi-edge purification box, the other end of the multi-edge purification box is fixedly provided with the bottom cover, the hollow multi-edge prism fixed on the surface of the bottom cover is arranged at the center position inside the multi-edge purification box, a partition plate is fixedly arranged between the hollow multi-edge prism and each corner of the multi-edge purification box, a first filter screen layer, an active carbon filter layer, a plant cleaning filter layer and a second filter screen layer are sequentially arranged between the multi-edge purification box and the hollow multi-edge prism in a sliding mode in the direction from the end cover to the bottom cover, a tail gas inlet is fixedly arranged on the side face of the end cover, which is far away from the multi-edge purification box, a plurality of tail gas dispersing outlet, and a plurality of tail gas outlets are uniformly arranged on the surface of the bottom cover.
As a preferable technical solution of the present invention, the first filter screen layer is composed of a plurality of sets of sliding units slidably disposed between the partition plates, each of the sliding units includes an outer frame, a baffle table, and a slider, the outer frame is slidably disposed between two sets of adjacent partition plates, the baffle table is fixedly disposed on a side surface of the outer frame close to the polygonal purification box, the slider is fixedly disposed on a side surface of the outer frame close to the hollow polygonal prism, and the filter screen layer is fixedly disposed inside the outer frame.
In a preferred embodiment of the present invention, the activated carbon filter layer, the plant cleaning filter layer, and the second filter screen layer have a structure similar to that of the first filter screen layer, and the activated carbon layer, the cleaning adsorption layer, and the filter screen layer are respectively provided inside the outer frame.
As a preferable technical scheme of the invention, the tail gas dispersing outlet end comprises an outlet cavity and a guide pipe, the outlet cavity is uniformly fixed on the inner surface of the end cover, the outlet cavity is fixedly connected with the guide pipe, and the guide pipe is provided with a control valve.
As a preferable technical scheme of the invention, each edge of the hollow polygonal prism is provided with a sliding groove matched with the sliding block.
In a preferred embodiment of the present invention, a sealing layer having a shape corresponding to the end surface of the hollow polygonal prism is fixed to the center of the inner surface of the end cap, and the sealing layer is preferably made of rubber.
As a preferable technical scheme of the invention, a handle positioned at one side of the tail gas inlet is fixedly arranged on the outer surface of the end cover.
Compared with the prior art, the invention has the beneficial effects that: in the traditional process, most of tail gas is discharged after being purified due to the fact that a large amount of tail gas is gushed, and pollution still can be caused; meanwhile, a control valve is arranged at each tail gas shunt hole, the flow of tail gas is controllable, excessive tail gas is prevented from flowing in at one time, the purification effect is ensured, the control is convenient to implement, and the purification device of each layer is divided into a plurality of small-area outer frame bodies, so that different areas can be conveniently replaced, later-stage inspection and maintenance are convenient, and material waste is avoided; the tail gas purifier is simple in structure, convenient to use, capable of purifying the tail gas of the airplane more effectively, capable of guaranteeing air quality, convenient to replace a purifying device and low in manufacturing cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a sliding unit according to the present invention;
FIG. 3 is a schematic view of the structure of the tail gas dispersing outlet end of the present invention;
FIG. 4 is a schematic diagram of a hollow polygonal prism structure according to the present invention;
FIG. 5 is a schematic view of the end cap of the present invention;
in the figure: 1-multilateral purification box, 2-end cover, 3-bottom cover, 4-hollow multilateral prism, 5-tail gas dispersion outlet end, 51-outlet cavity, 52-guide pipe, 53-control valve, 6-partition plate, 7-first filter screen layer, 71-sliding unit, 711-outer frame body, 712-grinding table, 713-filter screen layer, 714-chute, 8-active carbon filter layer, 9-plant cleaning filter layer, 10-second filter screen layer, 11-sealing layer, 12-tail gas inlet, 13-handle, 14-chute and 15-tail gas outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 5, the present invention provides a technical solution: an aircraft tail gas purification device special for aerospace comprises a polygonal purification box 1, an end cover 2, a bottom cover 3 and a hollow polygonal prism 4, wherein the end cover 2 is rotatably arranged at one end face of the polygonal purification box 1, the other end of the polygonal purification box 1 is fixedly provided with the bottom cover 3, the hollow polygonal prism 4 fixed on the surface of the bottom cover 3 is arranged at the center position in the polygonal purification box 1, a partition plate 6 is fixedly arranged between the hollow polygonal prism 4 and each corner of the polygonal purification box 1, a first filter screen layer 7, an active carbon filter layer 8, a plant cleaning filter layer 9 and a second filter screen layer 10 are sequentially arranged between the polygonal purification box 1 and the hollow polygonal prism 4 in a sliding manner in the direction from the end cover 2 to the bottom cover 3, a tail gas inlet 12 is fixedly arranged on the side of the end cover 2 departing from the polygonal purification box 1, a plurality of tail gas dispersion outlet ends 5 communicated with the tail gas inlet 12 are uniformly and fixedly arranged on one side of the end cover 2 close to, evenly on the surface of bottom 3 be equipped with a plurality of tail gas outlets 15, let in tail gas purification case 1 through tail gas import 12, through tail gas dispersion exit end 5 before getting into tail gas purification case 1, let in tail gas dispersion among hollow multilateral prism 4 and the multilateral cavity between the purification case 1, purification structure can purify this regional tail gas among every adjacent two group partition plates 6, guarantee purifying effect, the filter screen layer at 1 head and the tail both ends of multilateral purification case can prevent that external large granule impurity from carrying out among the box, pollute the clean environment, influence the purifying effect in later stage.
Referring to fig. 2, the first filter screen layer 7 is composed of a plurality of sets of sliding units 71 slidably disposed between the partition plates 6, each sliding unit 71 includes an outer frame 711, a baffle block 712 and a slider 714, the outer frame 711 is slidably disposed between two sets of adjacent partition plates 6, the baffle block 712 is fixedly disposed on the side surface of the outer frame 711 close to the polygonal purification box 1, the slider 714 is fixedly disposed on the side surface of the outer frame 711 close to the hollow polygonal prism 4, the filter screen layer 713 is fixedly disposed inside the outer frame 711, and the outer frame 711 is slidably disposed between each region between the polygonal purification box 1 and the hollow polygonal prism 4, so that later-stage maintenance and replacement are facilitated; and the structures of the activated carbon filter layer 8, the plant cleaning filter layer 9 and the second filter screen layer 10 are similar to the structure of the first filter screen layer 7, and the activated carbon layer, the cleaning adsorption layer and the filter screen layer are respectively arranged in the outer frame 711, so that the tail gas is purified, and each area is conveniently maintained and regulated.
Please refer to fig. 3, the tail gas dispersing outlet 5 includes an outlet cavity 51 and a guide pipe 52, the outlet cavity 51 is uniformly fixed on the inner surface of the end cover 2, the outlet cavity 51 is fixedly connected with the guide pipe 52, a control valve 53 is disposed on the guide pipe 52, the flow of the tail gas introduced each time can be carefully controlled by the control valve 53, the inflow rate of the tail gas can be adjusted, and the tail gas introduced into the multi-side purifying box 1 can be completely purified.
Please refer to fig. 4, each side of the hollow polygonal prism 4 is provided with a sliding slot 14 used in cooperation with the sliding block 714, the sliding block 714 sequentially slides into the polygonal purifying box 1 along the sliding slot 14, when the outer frame 711 is taken out in the later stage, the sliding block 714 extending into the hollow polygonal prism 4 is pushed in and pulled out, the purifying structure is conveniently taken out, the structure is simple, the use is convenient, meanwhile, the sealing layer 11 with the same shape as the end surface of the hollow polygonal prism 4 is fixedly arranged at the center of the inner surface of the end cover 2, the sealing layer 11 is preferably made of rubber, when the end cover 2 is closed, the sealing layer 11 seals the port of the hollow polygonal prism 4, so that the tail gas is prevented from entering, and the purifying effect is.
Referring to fig. 5, a handle 13 is fixed on the outer surface of the end cap 2 and is positioned at one side of the tail gas inlet 12, so that the end cap 2 is convenient to open and close, and the structure is simple.
In the traditional process, most of tail gas is discharged after being purified due to the fact that a large amount of tail gas is gushed, and pollution still can be caused; meanwhile, a control valve is arranged at each tail gas shunt hole, the flow of tail gas is controllable, excessive tail gas is prevented from flowing in at one time, the purification effect is ensured, the control is convenient to implement, and the purification device of each layer is divided into a plurality of small-area outer frame bodies, so that different areas can be conveniently replaced, later-stage inspection and maintenance are convenient, and material waste is avoided; the tail gas purifier is simple in structure, convenient to use, capable of purifying the tail gas of the airplane more effectively, capable of guaranteeing air quality, convenient to replace a purifying device and low in manufacturing cost.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a dedicated aircraft tail gas cleanup unit of aerospace, includes multilateral purifying box (1), end cover (2), bottom (3) and hollow multilateral prism (4), its characterized in that: the end cover (2) is rotatably arranged on one end face of the polygonal purifying box (1), a bottom cover (3) is fixedly arranged at the other end of the polygonal purifying box (1), a hollow polygonal prism (4) fixed on the surface of the bottom cover (3) is arranged at the center position inside the polygonal purifying box (1), a partition plate (6) is fixedly arranged between each corner of the hollow polygonal prism (4) and the polygonal purifying box (1), a first filter screen layer (7), an active carbon filter layer (8), a plant cleaning filter layer (9) and a second filter screen layer (10) are sequentially arranged between the polygonal purifying box (1) and the hollow polygonal prism (4) in a sliding mode in the direction from the end cover (2) to the bottom cover (3), a tail gas inlet (12) is fixedly arranged on the side face, deviating from the polygonal purifying box (1), of the end cover (2), and a plurality of tail gas communicated with the tail gas inlet (12) are uniformly and fixedly arranged on one side, close to the polygonal purifying box (1), of the end cover (2) Disperse exit end (5) be equipped with a plurality of tail gas outlets (15) on the surface of bottom (3) uniformly, first filter screen layer (7) slide by a plurality of groups and set up slip unit (71) between division board (6) and constitute, slip unit (71) include outer frame (711), whetstone (712) and slider (714), outer frame (711) slide and set up between two sets of adjacent division boards (6), whetstone (712) are fixed to be set up on outer frame (711) are close to multilateral purge bin (1) the fixed slider (714) that is equipped with on the side that is close to hollow multilateral prism (4) of outer frame (711) the fixed filter screen layer (713) that is equipped with in inside of outer frame (711).
2. An aerospace dedicated aircraft exhaust gas purification device according to claim 1, wherein: the structure of the activated carbon filter layer (8), the structure of the plant cleaning filter layer (9) and the structure of the second filter screen layer (10) are similar to the structure of the first filter screen layer (7), and the activated carbon layer, the cleaning adsorption layer and the filter screen layer are respectively arranged inside the outer frame body (711).
3. An aerospace dedicated aircraft exhaust gas purification device according to claim 1, wherein: tail gas dispersion exit end (5) are including export chamber (51) and stand pipe (52), export chamber (51) are fixed in the internal surface department of end cover (2) uniformly, export chamber (51) and stand pipe (52) fixed connection be equipped with control valve (53) on stand pipe (52).
4. An aerospace dedicated aircraft exhaust gas purification device according to claim 1, wherein: each edge of the hollow polygonal prism (4) is provided with a sliding groove (14) matched with the sliding block (714) for use.
5. An aerospace dedicated aircraft exhaust gas purification device according to claim 1, wherein: and a sealing layer (11) which is consistent with the end face of the hollow polygonal prism (4) in shape is fixedly arranged at the center of the inner surface of the end cover (2), and the sealing layer (11) is made of rubber.
6. An aerospace dedicated aircraft exhaust gas purification device according to claim 1, wherein: and a handle (13) positioned on one side of the tail gas inlet (12) is fixedly arranged on the outer surface of the end cover (2).
CN201810082380.6A 2018-01-23 2018-01-23 Dedicated aircraft tail gas cleanup unit of aerospace Active CN108331648B (en)

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Publication number Priority date Publication date Assignee Title
CN109340821B (en) * 2018-10-16 2020-09-08 安徽省飞腾航空科技有限公司 Light aero-engine combustion chamber structure and working mode thereof
CN109224651A (en) * 2018-10-29 2019-01-18 合肥康尔信电力系统有限公司 A kind of diesel-driven generator exhaust gas cleaner
CN110714812A (en) * 2019-10-25 2020-01-21 辽宁工程技术大学 Dedicated aircraft tail gas cleanup unit of aerospace

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FR2976620A1 (en) * 2011-06-20 2012-12-21 Peugeot Citroen Automobiles Sa Method for monitoring operating state of post-treatment system of exhaust line of internal combustion engine of vehicle, involves detecting crack in element according to comparison result

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