CN108331648A - Dedicated aircraft tail gas cleanup unit of aerospace - Google Patents

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

Aircraft exhaust purification device dedicated to aerospace

technical field

The invention relates to the technical field of aerospace, in particular to an aircraft exhaust purification device dedicated to aerospace.

Background technique

Exhaust gas pollution refers to the pollution of the atmosphere caused by the exhausted exhaust gas caused by the incomplete combustion of motor vehicle fuel. Mainly: carbon monoxide, nitrogen oxides, hydrocarbons. Carbon monoxide is an intermediate product of hydrocarbon fuel combustion. It is mainly produced due to the incomplete combustion of hydrocarbons under local anoxic or low temperature conditions, and is mixed with the exhaust gas of the internal combustion engine and discharged. The emission of nitrogen oxides 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, and the rest is nitrogen dioxide. No cases of humans being poisoned by nitric oxide have been found yet, but nitrogen dioxide is a reddish-brown respiratory irritant gas with an odor threshold about 1.5 times that of air quality, which has a great impact on the human body. Due to its low solubility in water, it is not easy to be absorbed by the upper respiratory tract and penetrate deep into the lower respiratory tract and lungs, causing bronchitis, pulmonary edema and other diseases. In the contemporary era where environmental protection is increasingly advocated, further treatment of aircraft exhaust is required to ensure air quality. In addition to the further combustion of fuel, it is also necessary to purify the exhaust gas and then discharge it into the atmosphere. There are many types of purification devices and their quality is uneven, but most of the purification devices have incomplete purification. , due to the one-time injection of a large amount of exhaust gas, most of the exhaust gas will be discharged without purification. Therefore, a new technical means is needed to solve this problem, so that the exhaust gas can be purified more thoroughly and the safety of the environment can be protected.

Contents of the invention

The object of the present invention is to provide an aircraft exhaust purification device dedicated to aerospace to solve the problems raised in the background technology above.

In order to achieve the above object, the present invention provides the following technical solutions: a special aircraft exhaust purification device for aerospace, including a polygonal purification box, an end cover, a bottom cover and a hollow polygonal prism, and the end cover is rotatably arranged on one side of the polygonal purification box. At the end face, a bottom cover is fixed at the other end of the polygonal purification box, and a hollow polygonal prism fixed on the surface of the bottom cover is provided at the center of the polygonal purification box. Between the hollow polygonal prism and the polygonal purification box A partition plate is fixed between each corner of each corner, and between the polygonal purification box and the hollow polygonal prism, the first filter screen layer, activated carbon filter layer, plant Clean the filter layer and the second filter screen layer. The side of the end cover away from the multilateral purification box is fixed with an exhaust gas inlet. The tail gas dispersing outlet end is uniformly provided with several tail gas outlets on the surface of the bottom cover.

As a preferred technical solution of the present invention, the first filter layer is composed of several sets of sliding units that are slidably arranged between the partition plates, and the sliding units include an outer frame, a platform and a slider. The outer frame body is slidably arranged between two groups of adjacent partition plates, the platform is fixedly arranged on the side of the outer frame body close to the polygonal purification box, and the side surface of the outer frame body close to the hollow polygonal prism is fixedly arranged There is a slide block, and a filter screen layer is fixed inside the outer frame body.

As a preferred technical solution of the present invention, the structure of the activated carbon filter layer, the plant cleaning filter layer and the second filter screen layer is similar to the structure of the first filter screen layer, and an activated carbon layer is respectively arranged inside the outer frame , Clean the adsorption layer and the filter layer.

As a preferred technical solution of the present invention, the exhaust gas dispersing outlet includes 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 tube, and the The guide pipe is provided with a control valve.

As a preferred technical solution of the present invention, each side of the hollow polygonal prism is provided with a slide groove used in conjunction with the slider.

As a preferred technical solution of the present invention, a sealing layer consistent with the shape of the end face of the hollow polygonal prism is fixed at the center of the inner surface of the end cap, and the sealing layer is preferably made of rubber.

As a preferred technical solution of the present invention, a handle on the side of the exhaust gas inlet is fixed on the outer surface of the end cover.

Compared with the prior art, the beneficial effect of the present invention is: in the traditional process, due to the influx of a large amount of tail gas, most of the tail gas is discharged without time to be purified, which still causes pollution. The tail gas of each branch flow is passed into different purification chambers, so that the purification efficiency of the tail gas is higher and the air quality is guaranteed; at the same time, a control valve is set at each tail gas diversion port to control the flow of the tail gas and prevent Excessive exhaust gas is poured in at one time to ensure the purification effect and facilitate the implementation of control, and the purification device on each floor is divided into several small areas of the outer frame, which is convenient for replacement in different areas, convenient for later inspection and maintenance, and eliminates waste of materials The present invention is simple in structure, easy to use, can carry out more effective purification to aircraft exhaust, guarantees air quality, is convenient to replace purifying device simultaneously, and cost is lower, and the present invention is easy to operate, and is practical, and is convenient to popularize and use.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural schematic diagram of the sliding unit of the present invention;

Fig. 3 is a schematic diagram of the structure of the tail gas dispersion outlet of the present invention;

Fig. 4 is the schematic diagram of hollow polygonal prism structure of the present invention;

Fig. 5 is a schematic diagram of the structure of the end cap of the present invention;

In the figure: 1-Multilateral purification box, 2-End cover, 3-Bottom cover, 4-Hollow polygonal prism, 5-Exhaust gas dispersion outlet, 51-Exit mouth, 52-Guide pipe, 53-Control valve, 6-Point Partition, 7-first filter layer, 71-sliding unit, 711-outer frame, 712-stand, 713-filter layer, 714-chute, 8-activated carbon filter layer, 9-plant cleaning filter layer , 10-second filter screen layer, 11-sealing layer, 12-exhaust gas inlet, 13-handle, 14-chute, 15-exhaust gas outlet.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1 and Fig. 5, the present invention provides a kind of technical scheme: a kind of aircraft exhaust purification device dedicated to aerospace, including polygonal purification box 1, end cover 2, bottom cover 3 and hollow polygonal prism 4, end cover 2 rotates It is arranged at one end face of the polygonal purification box 1, and a bottom cover 3 is fixed at the other end of the polygonal purification box 1. A hollow polygonal prism 4 fixed on the surface of the bottom cover 3 is provided at the center of the polygonal purification box 1. A partition plate 6 is fixed between the hollow polygonal prism 4 and each corner of the polygonal clean box 1, and a partition plate 6 is installed between the polygonal clean box 1 and the hollow polygonal prism 4 in order to slide from the end cover 2 to the bottom cover 3. The first filter layer 7, the active carbon filter layer 8, the plant cleaning filter layer 9 and the second filter layer 10 in turn, the end cover 2 is fixedly provided with an exhaust gas inlet 12 on the side away from the multilateral purification box 1, and the end cover 2 is close to the multilateral One side of the purification box 1 is evenly fixed with a number of tail gas dispersion outlets 5 communicating with the tail gas inlet 12, and a number of tail gas outlets 15 are uniformly arranged on the surface of the bottom cover 3, and the tail gas is passed into the tail gas through the tail gas inlet 12. In the purification box 1, before entering the exhaust gas purification box 1, through the exhaust gas dispersion outlet 5, the exhaust gas is dispersed into the cavity between the hollow polygonal prism 4 and the polygonal purification box 1. 6. The purification structure can purify the exhaust gas in this area to ensure the purification effect. The filter layers at both ends of the multilateral purification box 1 can prevent large particles from the outside from entering the box, pollute the purification environment, and affect the later purification effect. .

Please refer to Fig. 2, the first filter screen layer 7 is composed of several groups of sliding units 71 slidingly arranged between the partition plates 6, the sliding unit 71 includes an outer frame body 711, a platform 712 and a slider 714, the outer frame body 711 Slidingly arranged between two groups of adjacent partition plates 6, the platform 712 is fixedly arranged on the side of the outer frame body 711 close to the polygonal purification box 1, and a slide is fixed on the side of the outer frame body 711 near the hollow polygonal prism 4. Block 714, the filter screen layer 713 is fixed inside the outer frame body 711, and the outer frame body 711 is slidably arranged between the polygonal purification box 1 and the hollow polygonal prism 4 to facilitate later maintenance and Replacement, because only part needs to be replaced, eliminate the waste of raw materials, reduce maintenance costs, and facilitate operation; The structure is similar, and the inside of the outer frame 711 is respectively provided with an activated carbon layer, a clean adsorption layer and a filter layer, which can facilitate the maintenance and regulation of each area while purifying the exhaust gas.

Please refer to Fig. 3, the tail gas dispersing outlet port 5 includes an outlet cavity 51 and a guide tube 52, the outlet cavity 51 is evenly fixed on the inner surface of the end cover 2, the outlet cavity 51 is fixedly connected with the guide tube 52, and the guide tube 52 is provided with There is a control valve 53, through which the flow of the exhaust gas can be carefully controlled each time, and the influx rate of the exhaust gas can be adjusted to ensure that all the exhaust gas entering the multilateral purification box 1 can be purified. The structure is simple and easy to operate .

Please combine with Fig. 4, each side of the hollow polygonal prism 4 is provided with a chute 14 used in conjunction with the slide block 714, slide the slide block 714 into the polygonal purification box 1 sequentially along the chute 14, and later put the outer When the frame body 711 is taken out, the sliding block 714 inserted into the hollow polygonal prism 4 realizes pushing and pulling out, so that the purification structure can be taken out conveniently. The structure is simple and easy to use. The sealing layer 11 consistent with the shape of the end face of the hollow polygonal prism 4, the sealing layer 11 is preferably made of rubber, and when the end cover 2 is closed, the sealing layer 11 will seal the port of the hollow polygonal prism 4 to prevent exhaust gas from entering and affecting the purification effect.

Please refer to FIG. 5 , the outer surface of the end cover 2 is fixed with a handle 13 located on the side of the exhaust gas inlet 12 to facilitate the opening and closing of the end cover 2 , and the structure is simple.

In the traditional process, due to the influx of a large amount of exhaust gas, most of the exhaust gas is discharged without time to be purified, which will still cause pollution. The present invention divides and refines the exhaust gas influx, and passes the exhaust gas of each branch into different purification chambers. , so that the purification efficiency of exhaust gas is higher, ensuring the quality and safety of the air; at the same time, a control valve is set at each exhaust gas diversion port to control the flow of exhaust gas, preventing excessive exhaust gas from entering at one time, ensuring the purification effect, and convenient Control is implemented, and the purification device on each floor is divided into several small areas of the outer frame, which is convenient for replacement in different areas, convenient for later inspection and maintenance, and eliminates waste of materials; More effective purification can ensure air quality, and at the same time, it is convenient to replace the purification device, and the cost is low.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (7)

1. a kind of dedicated aircraft exhaust gas cleaner of aerospace, including polygon purifying box (1), end cap (2), bottom cover (3) and Hollow polygonal prism (4), it is characterised in that：The end cap (2) is rotatably dispose at the end face of polygon purifying box (1), in institute The other end for stating polygon purifying box (1) is fixed with bottom cover (3), is equipped in the internal center of the polygon purifying box (1) It is fixed on the hollow polygonal prism (4) on bottom cover (3) surface, in each of the hollow polygonal prism (4) and polygon purifying box (1) Demarcation strip (6) is fixed between turning, between the polygon purifying box (1) and hollow polygonal prism (4) extremely from end cap (2) On the direction of bottom cover (3) successively sliding be equipped with successively the first filter mesh layer (7), activated carbon filtering layer (8), plant clean filter bed (9) and Second filter mesh layer (10), the end cap (2) is fixed with inlet exhaust gas (12) on the side of polygon purifying box (1), in institute It states end cap (2) and is uniformly fixed with several tail gas communicated with inlet exhaust gas (12) point close to the side of polygon purifying box (1) It dissipates outlet end (5), several tail gas gas outlets (15) is uniformly equipped on the surface of the bottom cover (3).

2. the dedicated aircraft exhaust gas cleaner of a kind of aerospace according to claim 1, it is characterised in that：Described One filter mesh layer (7) is slideably positioned in the sliding unit (71) between demarcation strip (6) by several groups and forms, the sliding unit (71) Including outer frame body (711), whetstone platform (712) and sliding block (714), the outer frame body (711) is slideably positioned in two groups of adjacent separations Between plate (6), the whetstone platform (712) is fixedly installed on outer frame body (711) on the side of polygon purifying box (1), described Outer frame body (711) is fixed with sliding block (714) on the side of hollow polygonal prism (4), in the interior of the outer frame body (711) Portion is fixed with filter mesh layer (713).

3. the dedicated aircraft exhaust gas cleaner of a kind of aerospace according to claim 1 or 2, it is characterised in that：Institute The structure for stating activated carbon filtering layer (8), plant clean filter bed (9) and the second filter mesh layer (10) is similar to the first filter mesh layer (7) structure, It is respectively equipped with active carbon layer, cleaning adsorption layer and filter mesh layer in the inside of the outer frame body (711).

4. the dedicated aircraft exhaust gas cleaner of a kind of aerospace according to claim 1, it is characterised in that：The tail Gas dispersion outlet end (5) includes outlet plenum (51) and guide pipe (52), and the outlet plenum (51) is uniformly fixed on end cap (2) At inner surface, the outlet plenum (51) is fixedly connected with guide pipe (52), and control valve (53) is equipped on the guide pipe (52).

5. the dedicated aircraft exhaust gas cleaner of a kind of aerospace according to claim 1 or 2, it is characterised in that：Institute State the sliding slot (14) for being equipped on each side of hollow polygonal prism (4) and being used cooperatively with sliding block (714).

6. the dedicated aircraft exhaust gas cleaner of a kind of aerospace according to claim 1, it is characterised in that：Described The sealant consistent with hollow polygonal prism (4) end surface shape (11) is fixed at the center of the inner surface of end cap (2), it is described Sealant (11) is preferably rubber material.

7. the dedicated aircraft exhaust gas cleaner of a kind of aerospace according to claim 1, it is characterised in that：The end It covers on the outer surface of (2) and is fixed with the handle (13) positioned at inlet exhaust gas (12) side.