Tail gas treatment device for oil-powered unmanned aerial vehicle

Abstract

The utility model relates to the technical field of tail gas treatment of unmanned aerial vehicles, and discloses a tail gas treatment device for an oil-powered unmanned aerial vehicle, which comprises a gas inlet mechanism, a filter mechanism is arranged on one side of the gas inlet mechanism, an exhaust mechanism is arranged on one side of the filter mechanism, the gas inlet mechanism comprises a gas inlet pipe, a filter screen is mounted in the gas inlet pipe, and a gas outlet is formed in the gas outlet pipe. According to the scheme, the air inlet mechanism, the filtering mechanism and the air exhaust mechanism are used in cooperation, under the combination of the air inlet pipe, the connecting cylinder and the connecting cylinder, the two sides of the inner space are conical, and the middle of the inner space is cylindrical; according to the tail gas treatment device, high-frequency noise can be counteracted through airflow resonance, the noise is reduced, meanwhile, power loss caused by a traditional silencer is avoided, carbon particles can be intercepted through matched use of the filter screen, the first filter cartridge and the second filter cartridge, environmental pollution can be reduced, and therefore the environmental protection property of the tail gas treatment device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned aerial vehicle tail gas treatment technical field, concretely is a tail gas treatment device for oil power unmanned aerial vehicle. BACKGROUND

[0002] Industrial grade unmanned aerial vehicle develops rapidly in the domestic, has become the leader of unmanned aerial vehicle industry. Industrial grade oil power unmanned aerial vehicle occupies the important position in industrial grade unmanned aerial vehicle. Oil power unmanned aerial vehicle is widely applied in the field of industry, agriculture, rescue and so on because of its high power quality ratio, long endurance and big load capacity.

[0003] The existing sound traditional oil power unmanned aerial vehicle tail gas treatment adopts direct discharge or simple silencer design, and the flight noise is big, and the concealment is poor and the people are disturbed, and the engine exhaust contains unburned fuel, lubricating oil carbon particles and harmful gas (such as CO, HC), direct discharge will pollute the environment, therefore we propose a tail gas treatment device for oil power unmanned aerial vehicle. UTILITY MODEL CONTENT

[0004] In view of the deficiency of prior art, the utility model aims at providing a tail gas treatment device for oil power unmanned aerial vehicle to solve the problems in the background art.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a tail gas treatment device for oil power unmanned aerial vehicle, comprising, air inlet mechanism, one side of the air inlet mechanism is equipped with filter mechanism, one side of the filter mechanism is equipped with exhaust mechanism;

[0006] The air inlet mechanism includes an air inlet pipe, a filter screen is installed in the air inlet pipe, a first sealing ring is arranged in the air inlet pipe, a connecting piece is fixedly connected to the surface of the air inlet pipe, and two fixing pieces are arranged on the surface of the connecting piece.

[0007] The filter mechanism includes a connecting cylinder fixedly connected to the surface of the air inlet pipe, a connecting ring is arranged in the connecting cylinder, a first filter cylinder is arranged in the connecting ring, a second filter cylinder and a second sealing ring are arranged in the connecting ring, and a first air guide pipe is fixedly connected to the inside of the second sealing ring.

[0008] The exhaust mechanism includes a second air guide pipe fixedly connected to the surface of the connecting ring, a third sealing ring is installed in the second air guide pipe, a plurality of three-way catalysts are arranged in the form of annular array on the surface of the third sealing ring, a fourth sealing ring is arranged in the second air guide pipe, and an exhaust pipe is arranged in the fourth sealing ring.

[0009] Preferably, the outer diameter of the filter screen is equal to the inner diameter of the air inlet end of the air inlet pipe, and the outer diameter of the filter screen is equal to the inner diameter of the first sealing ring.

[0010] Preferably, one side of the connecting piece surface is provided with a fixing screw, and the other side of the connecting piece surface is provided with a fixing nut matched with the fixing screw.

[0011] Preferably, the first filter cartridge is clamped into the inner part of the connecting ring through first clamping teeth, and the second filter cartridge is screwed to the inner wall of the connecting ring.

[0012] Preferably, the surface of the second filter cartridge is provided with first clamping teeth, and the surface of the second sealing ring is provided with second clamping teeth matched with the first clamping teeth.

[0013] Preferably, one end of the exhaust pipe is located between the plurality of three-way catalysts, and one end of the first air guide pipe is located between the plurality of three-way catalysts.

[0014] Preferably, the first filter cartridge and the second filter cartridge are both granular activated carbon, and the first air guide pipe and the exhaust pipe are both titanium alloy pipes.

[0015] Compared with the prior art, the utility model reaches the beneficial effects that:

[0016] Firstly, the utility model cooperatively uses the air inlet mechanism, the filtering mechanism and the exhaust mechanism, wherein the combination of the air inlet pipe, the connecting cylinder and the connecting cylinder makes the internal space be a two-side conical middle cylindrical shape, can make the airflow resonance offset high-frequency noise, reduce the noise, and avoid the power loss caused by the traditional silencer.

[0017] Secondly, the utility model cooperatively uses the filter screen, the first filter cartridge and the second filter cartridge, can intercept carbon particles, reduce environmental pollution, and improve the environmental protection of the tail gas treatment device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the utility model;

[0019] Figure 2 It is an explosion view of the air inlet mechanism in the structure of the utility model;

[0020] Figure 3 It is an explosion view of the filtering mechanism in the structure of the utility model;

[0021] Figure 4 It is an explosion view of the exhaust mechanism in the structure of the utility model.

[0022] Wherein: 1, air inlet mechanism; 101, air inlet pipe; 102, filter screen; 103, first sealing ring; 104, connecting piece; 105, fixing piece; 106, fixing screw; 107, fixing nut; 2, filtering mechanism; 201, connecting barrel; 202, connecting ring; 203, first filter barrel; 204, second filter barrel; 205, second sealing ring; 206, first air guide pipe; 207, first clamping tooth; 208, second clamping tooth; 3, exhaust mechanism; 301, second air guide pipe; 302, third sealing ring; 303, three-way catalyst; 304, fourth sealing ring; 305, exhaust pipe. DETAILED DESCRIPTION

[0023] The specific embodiments of the utility model will be described in further detail below with reference to the drawings.

[0024] Please refer to Figures 1-4 An oil-powered unmanned aerial vehicle tail gas treatment device, air inlet mechanism 1, one side of air inlet mechanism 1 is provided with filtering mechanism 2, one side of filtering mechanism 2 is provided with exhaust mechanism 3, air inlet mechanism 1 includes air inlet pipe 101, the inside of air inlet pipe 101 is provided with filter screen 102, the inside of air inlet pipe 101 is provided with first sealing ring 103, the surface of air inlet pipe 101 is fixedly connected with connecting piece 104, the surface of connecting piece 104 is provided with two fixing pieces 105, filtering mechanism 2 includes connecting barrel 201 fixedly connected to the surface of air inlet pipe 101, the inside of connecting barrel 201 is provided with connecting ring 202, the inside of connecting ring 202 is provided with first filter barrel 203, the inside of connecting ring 202 is provided with second filter barrel 204 and second sealing ring 205, the inside of second sealing ring 205 is fixedly connected with first air guide pipe 206, exhaust mechanism 3 includes second air guide pipe 301 fixedly connected to the surface of connecting ring 202, the inside of second air guide pipe 301 is provided with third sealing ring 302, a plurality of three-way catalysts 303 are installed in the form of annular array on the surface of third sealing ring 302, the inside of second air guide pipe 301 is provided with fourth sealing ring 304, the inside of fourth sealing ring 304 is provided with exhaust pipe 305.

[0025] Through the above technical scheme, through the cooperation of air inlet mechanism 1, filtering mechanism 2 and exhaust mechanism 3, the combination of air inlet pipe 101, connecting barrel 201 and connecting barrel 201 makes the internal space be two-sided conical and middle cylindrical, which can make the airflow resonance cancel high-frequency noise and reduce noise, and at the same time avoid the power loss caused by the traditional silencer, through the cooperation of filter screen 102, first filter barrel 203 and second filter barrel 204, carbon particles can be intercepted, environmental pollution can be reduced, and the environmental protection of the tail gas treatment device is improved.

[0026] The outer diameter of the filter screen 102 is equal to the inner diameter of the air inlet end of the air inlet pipe 101, and the outer diameter of the filter screen 102 is equal to the inner diameter of the first sealing ring 103. Through the size setting of the filter screen 102, the air inlet pipe 101 and the first sealing ring 103, the probability of exhaust gas leaking from the gap between the filter screen 102, the air inlet pipe 101 and the first sealing ring 103 is reduced, thereby increasing the air tightness between the filter screen 102, the air inlet pipe 101 and the first sealing ring 103.

[0027] The surface of the connecting piece 104 is provided with a fixing screw 106, and the other surface of the connecting piece 104 is provided with a fixing nut 107 matched with the fixing screw 106. Through the cooperation of the fixing screw 106 and the fixing nut 107, the air inlet pipe 101 is conveniently fixed to the surface of the unmanned aerial vehicle, thereby increasing the practicability of the exhaust treatment device.

[0028] The first filter cartridge 203 is clamped into the inside of the connecting ring 202 through the first clamping teeth, and the second filter cartridge 204 is threadedly connected to the inner wall of the connecting ring 202. Through the setting of the first clamping teeth, the stability between the first filter cartridge 203 and the connecting ring 202 is increased, and through the thread connection of the second filter cartridge 204 to the inner wall of the connecting ring 202, the disassembly and installation between the connecting ring 202 and the connecting cylinder 201 are facilitated.

[0029] The surface of the second filter cartridge 204 is provided with first clamping teeth 207, and the surface of the second sealing ring 205 is provided with second clamping teeth 208 matched with the first clamping teeth 207. Through the cooperation of the first clamping teeth 207 and the second clamping teeth 208, the mutual rotation of the second filter cartridge 204 and the second sealing ring 205 can be prevented, and the air guiding effect of the first air guiding pipe 206 is increased.

[0030] One end of the exhaust pipe 305 is located between the plurality of three-way catalysts 303, and one end of the first air guiding pipe 206 is located between the plurality of three-way catalysts 303. Through the position setting of the exhaust pipe 305 and the first air guiding pipe 206, the time for temporarily storing exhaust gas in the second air guiding pipe 301 can be increased, thereby increasing the silencing effect.

[0031] The first filter cartridge 203 and the second filter cartridge 204 are both granular activated carbon, and the first air guiding pipe 206 and the exhaust pipe 305 are both titanium alloy pipes. Through the material setting of the first filter cartridge 203 and the second filter cartridge 204, the filtering effect of the exhaust gas can be increased, and through the material setting of the first air guiding pipe 206 and the exhaust pipe 305, the mechanical strength of the first air guiding pipe 206 and the exhaust pipe 305 can be increased, and the corrosion resistance thereof is increased.

[0032] In use, the connecting piece 104 is connected with the unmanned aerial vehicle through the fixing piece 105, and the air inlet pipe 101 is attached to the unmanned aerial vehicle, then the fixing piece 105 is fixed with the unmanned aerial vehicle through the fixing screw 106 and the fixing nut 107, the gas enters the inside of the air inlet pipe 101 through the filter screen 102, at this time the tail gas is preliminarily filtered through the filter screen 102, then the tail gas is secondarily filtered through the first filter cylinder 203 and the second filter cylinder 204, the filtered gas enters the inside of the second gas guide pipe 301 through the first gas guide pipe 206, at this time the gas passes through the third sealing ring 302 through the three-way catalyst 303, and finally is discharged through the exhaust pipe 305, so that the internal space is a two-side conical middle cylindrical shape, and the tail gas can be silenced.

[0033] Although the specific embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the specific embodiments can be substituted with other embodiments without departing from the spirit and scope of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A gas treatment device for exhaust gas from a fuel-powered unmanned aerial vehicle (UAV), characterized in that, It includes an air intake mechanism (1), a filter mechanism (2) on one side of the air intake mechanism (1), and an exhaust mechanism (3) on one side of the filter mechanism (2). The air intake mechanism (1) includes an air intake pipe (101), a filter screen (102) is installed inside the air intake pipe (101), a first sealing ring (103) is provided inside the air intake pipe (101), and a connector (104) is fixedly connected to the surface of the air intake pipe (101). Two fasteners (105) are provided on the surface of the connector (104). The filtration mechanism (2) includes a connecting cylinder (201) fixedly connected to the surface of the air inlet pipe (101). The connecting cylinder (201) has a connecting ring (202) inside. The connecting ring (202) has a first filter cylinder (203) inside. The connecting ring (202) has a second filter cylinder (204) and a second sealing ring (205) inside. The second sealing ring (205) has a first air guide pipe (206) fixedly connected inside. The exhaust mechanism (3) includes a second air guide pipe (301) fixedly connected to the surface of the connecting ring (202). A third sealing ring (302) is installed inside the second air guide pipe (301). Multiple three-way catalytic converters (303) are installed in a ring array on the surface of the third sealing ring (302). A fourth sealing ring (304) is provided inside the second air guide pipe (301). An exhaust pipe (305) is provided inside the fourth sealing ring (304).

2. The exhaust gas treatment device for a fuel-powered unmanned aerial vehicle according to claim 1, characterized in that: The outer diameter of the filter screen (102) is equal to the inner diameter of the air inlet end of the air inlet pipe (101), and the outer diameter of the filter screen (102) is equal to the inner diameter of the first sealing ring (103).

3. The exhaust gas treatment device for a fuel-powered unmanned aerial vehicle according to claim 1, characterized in that: A fixing screw (106) is provided on one side of the surface of the connector (104), and a fixing nut (107) adapted to the fixing screw (106) is provided on the other side of the surface of the connector (104).

4. The exhaust gas treatment device for a fuel-powered unmanned aerial vehicle according to claim 1, characterized in that: The first filter cartridge (203) is inserted into the interior of the connecting ring (202) by the first locking teeth, and the second filter cartridge (204) is threaded to the inner wall of the connecting ring (202).

5. The exhaust gas treatment device for a fuel-powered unmanned aerial vehicle according to claim 1, characterized in that: The surface of the second filter cartridge (204) is provided with a first snap-fit ​​tooth (207), and the surface of the second sealing ring (205) is provided with a second snap-fit ​​tooth (208) that is adapted to the first snap-fit ​​tooth (207).

6. The exhaust gas treatment device for a gasoline-powered unmanned aerial vehicle according to claim 1, characterized in that: One end of the exhaust pipe (305) is located between multiple three-way catalytic converters (303), and one end of the first air guide pipe (206) is located between multiple three-way catalytic converters (303).

7. The exhaust gas treatment device for a fuel-powered unmanned aerial vehicle according to claim 1, characterized in that: The first filter cartridge (203) and the second filter cartridge (204) are both made of granular activated carbon, and the first air guide pipe (206) and the exhaust pipe (305) are both made of titanium alloy.

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