Tail gas treatment device for aero-engine test bed

Abstract

The utility model discloses an aero-engine test bed tail gas treatment device, which relates to the technical field of tail gas treatment, and comprises a bottom plate, a silencing mechanism is arranged at the top of the bottom plate, an adsorption mechanism is arranged at one end of the silencing mechanism, a spraying mechanism is arranged at one end of the adsorption mechanism, and the spraying mechanism comprises a spraying box. And the spraying box is fixedly connected to the top surface of the bottom plate. Through cooperation of the spraying mechanism, the spraying box, the drainage pipe, the fixing ring, the motor, the first gear, the second gear, a water guide pipe, a gas outlet pipe, a valve, a water tank, a water inlet pipe, a hollow pipe, an atomizing nozzle and a connecting groove, tail gas is atomized and sprayed by using a catalyst in the spraying box after being adsorbed, so that the temperature of the tail gas can be reduced; the device can protect surrounding facilities and instruments, absorb unadsorbed toxic gas in the tail gas, prevent the toxic gas from being discharged into the air, reduce pollution of harmful gas emission to the atmospheric environment and protect the ecological environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to tail gas treatment technical field, concretely relates to an aeroengine test bed tail gas treatment device. BACKGROUND

[0002] The aeroengine test bed tail gas treatment device is a device for treating tail gas generated during the test run of an aeroengine, and its main purpose is to reduce the pollution of tail gas to the environment and reduce noise. The main functions include pollutant removal, high-efficiency filter in the tail gas treatment device can intercept and capture these particulate matters to prevent them from being discharged into the atmosphere, thereby reducing the impact on air quality, harmful gas purification, and the tail gas treatment device can convert or remove these harmful gases to meet environmental emission standards.

[0003] Patent publication number CN221933533U discloses a tail gas treatment device, which comprises a box lower, the box lower top end is placed with a box upper, the box lower outer side is fixedly installed with a supporting plate, the supporting plate upper surface is fixedly installed with a cylinder, the cylinder upper surface is fixedly connected with a pressing plate, the pressing plate lower surface is in contact with a filter element bag, and the filter element bag is placed in the box upper interior.

[0004] In order to solve the problem that the activated carbon particles in the purification box are not convenient for personnel to replace after a long time of use, and the adsorption layer is also not convenient for personnel to take out, the prior art adopts the mode of quickly replacing activated carbon particles by placing the filter element bag loaded with activated carbon particles in the box upper interior, and taking the box upper from the top end of the box lower, but there is still the problem that the adsorption effect of activated carbon particles is not good, some gases cannot be adsorbed, and the tail gas treatment effect is not good, which pollutes the air. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an aeroengine test bed tail gas treatment device to solve the problems in the background art.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of:

[0007] An aeroengine test bed tail gas treatment device, comprising a bottom plate, wherein the top of the bottom plate is provided with a sound attenuation mechanism, one end of the sound attenuation mechanism is provided with an adsorption mechanism, one end of the adsorption mechanism is provided with a spraying mechanism, the spraying mechanism comprises a spraying box, the spraying box is fixedly connected to the top surface of the bottom plate, one side of the spraying box is fixedly connected with a drain pipe, one side of the spraying box is fixedly connected with a fixing ring, the inner wall of the fixing ring is fixedly connected with a motor, and the output end surface of the motor is fixedly connected with a gear one.

[0008] The further improvement in the utility model technical scheme lies in that the surface of the gear one is engaged with a gear two, the middle part of the gear two is rotationally connected with a water guide pipe, one end of the water guide pipe is fixedly connected with a water tank, the bottom of the water tank is fixedly connected with the top of a spraying tank, the top of the water tank is fixedly connected with a water inlet pipe, one side of the spraying tank is fixedly connected with an air outlet pipe, the surface of the air outlet pipe is fixedly connected with a valve.

[0009] The further improvement in the utility model technical scheme lies in that the surface of the gear one is engaged with a gear two, the middle part of the gear two is rotationally connected with a water guide pipe, one end of the water guide pipe is fixedly connected with a water tank, the bottom of the water tank is fixedly connected with the top of a spraying tank, the top of the water tank is fixedly connected with a water inlet pipe, one side of the spraying tank is fixedly connected with an air outlet pipe, the surface of the air outlet pipe is fixedly connected with a valve.

[0010] The further improvement in the utility model technical scheme lies in that the surface of the gear one is engaged with a gear two, the middle part of the gear two is rotationally connected with a water guide pipe, one end of the water guide pipe is fixedly connected with a water tank, the bottom of the water tank is fixedly connected with the top of a spraying tank, the top of the water tank is fixedly connected with a water inlet pipe, one side of the spraying tank is fixedly connected with an air outlet pipe, the surface of the air outlet pipe is fixedly connected with a valve.

[0011] The further improvement in the utility model technical scheme lies in that the surface of the gear one is engaged with a gear two, the middle part of the gear two is rotationally connected with a water guide pipe, one end of the water guide pipe is fixedly connected with a water tank, the bottom of the water tank is fixedly connected with the top of a spraying tank, the top of the water tank is fixedly connected with a water inlet pipe, one side of the spraying tank is fixedly connected with an air outlet pipe, the surface of the air outlet pipe is fixedly connected with a valve.

[0012] The further improvement in the utility model technical scheme lies in that the surface of the gear one is engaged with a gear two, the middle part of the gear two is rotationally connected with a water guide pipe, one end of the water guide pipe is fixedly connected with a water tank, the bottom of the water tank is fixedly connected with the top of a spraying tank, the top of the water tank is fixedly connected with a water inlet pipe, one side of the spraying tank is fixedly connected with an air outlet pipe, the surface of the air outlet pipe is fixedly connected with a valve.

[0013] The further improvement in the utility model technical scheme lies in that the surface of the gear one is engaged with a gear two, the middle part of the gear two is rotationally connected with a water guide pipe, one end of the water guide pipe is fixedly connected with a water tank, the bottom of the water tank is fixedly connected with the top of a spraying tank, the top of the water tank is fixedly connected with a water inlet pipe, one side of the spraying tank is fixedly connected with an air outlet pipe, the surface of the air outlet pipe is fixedly connected with a valve.

[0014] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0015] 1. The utility model provides a kind of aeroengine test bed tail gas treatment device, cooperation between spray mechanism, spray tank, drain pipe, fixed ring, motor, gear one, gear two, water guide pipe, air pipe, valve, water tank, inlet pipe, hollow tube, atomizing nozzle, connecting groove is carried out, by the catalyst atomizing spray in spray tank inside after being adsorbed to tail gas, the temperature of tail gas can be reduced, can protect peripheral facilities instrument, absorb the toxic gas not being adsorbed in tail gas, prevent its discharge into air, can reduce the pollution of harmful gas emission to atmospheric environment, protect ecological environment.

[0016] 2, the utility model provides a kind of aeroengine test bed tail gas treatment device, cooperation between adsorption mechanism, adsorption tank, connector, plugboard, limit board, pull ring, activated carbon particle, round hole is carried out, by the activated carbon particle to tail gas for adsorption by adsorption tank, removes particulate matter therein, particulate matter can be attached in activated carbon, tail gas can contain a variety of organic compounds, activated carbon has highly developed pore structure, when tail gas passes through activated carbon, these organic pollutant molecules are captured by activated carbon pore, to be removed from tail gas, further improve the purification effect of tail gas, reduce the emission of particulate matter.

[0017] 3, the utility model provides a kind of aeroengine test bed tail gas treatment device, cooperation between silencing mechanism, fixed base, flow guide pipe, soundproof board, connecting pipe is carried out, by the exhaust port being aligned with the end of flow guide pipe, soundproof board can be sound-absorbed during test, protect the hearing health of staff, noise reduction silencing can reduce background noise, reduce the interference of noise to test instrument and equipment, make measurement result more accurate and reliable, some accurate instruments are protected, reduce maintenance cost and equipment update frequency. ACCURACY

[0018] Figure 1 It is the three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is the structure schematic view of the utility model spray mechanism;

[0020] Figure 3 It is the structure schematic view of the utility model spray mechanism;

[0021] Figure 4 It is the structure schematic view of the utility model adsorption mechanism;

[0022] Figure 5 It is the structure schematic view of the utility model silencing mechanism.

[0023] In the figure: 1, sound attenuation mechanism; 2, adsorption mechanism; 3, spraying mechanism; 4, bottom plate; 11, fixed seat; 12, flow guide pipe; 13, sound insulation board; 14, connecting pipe; 21, adsorption box; 22, connecting head; 23, plugboard; 24, limiting plate; 25, pull ring; 26, activated carbon particles; 27, round hole; 31, spraying box; 32, drain pipe; 33, fixed ring; 34, motor; 35, gear one; 36, gear two; 37, water guide pipe; 38, air outlet pipe; 39, valve; 301, water tank; 302, water inlet pipe; 303, hollow pipe; 304, atomizing nozzle; 305, connecting groove. DETAILED DESCRIPTION

[0024] The utility model will be made further detailed explanation in combination with example:

[0025] Example 1

[0026] As Figures 1-5 shown, the utility model provides an aeroengine test bed tail gas treatment device, including bottom plate 4, the top of bottom plate 4 is provided with sound attenuation mechanism 1, one end of sound attenuation mechanism 1 is provided with adsorption mechanism 2, one end of adsorption mechanism 2 is provided with spraying mechanism 3, and spraying mechanism 3 includes spraying box 31, and spraying box 31 is fixedly connected at the top surface of bottom plate 4, one side of spraying box 31 is fixedly connected with drain pipe 32, one side of spraying box 31 is fixedly connected with fixed ring 33, the inner wall of fixed ring 33 is fixedly connected with motor 34, the output end surface of motor 34 is fixedly connected with gear one 35, the surface of gear one 35 is engaged with gear two 36, the middle part of gear two 36 is rotatably connected with water guide pipe 37, one end of water guide pipe 37 is fixedly connected with water tank 301, and the bottom of water tank 301 is fixedly connected with the top of spraying box 31, the top of water tank 301 is fixedly connected with water inlet pipe 302, one side of spraying box 31 is fixedly connected with air outlet pipe 38, the surface of air outlet pipe 38 is fixedly connected with valve 39, the side of spraying box 31 is provided with connecting groove 305, the inner wall of spraying box 31 is rotatably connected with hollow pipe 303, the surface of hollow pipe 303 is fixedly connected with atomizing nozzle 304, hollow pipe 303 penetrates one side of spraying box 31 and extends right, and the extension end of hollow pipe 303 is fixedly connected with one side of water guide pipe 37, and one end of water guide pipe 37 is rotatably connected with the inside of hollow pipe 303.

[0027] In the embodiment, the catalyst is injected into the water tank 301 from the water inlet pipe 302, the motor 34 fixed by the fixed ring 33 is started, the motor 34 drives the gear one 35 and the gear two 36 engaged with the gear one 35, the gear two 36 drives the hollow pipe 303, the catalyst is sprayed from the atomizing nozzle 304 after entering the inside of the hollow pipe 303 from the water guide pipe 37 in the water tank 301, and finally flows out from the water outlet pipe 32, the valve 39 is opened to discharge the gas, the temperature of the exhaust gas can be reduced, the surrounding facilities and instruments can be protected, the toxic gas not adsorbed in the exhaust gas of the aero-engine is absorbed, the exhaust gas is prevented from being discharged into the air, the pollution of the harmful gas discharge to the atmospheric environment can be reduced, and the ecological environment is protected, the water tank 301 is provided with the catalyst capable of absorbing the exhaust gas of the aero-engine, such as a noble metal catalyst, a metal oxide catalyst and a molecular sieve catalyst.

[0028] Embodiment 2

[0029] As Figures 1-5 shown, based on the embodiment 1, the utility model provides a technical scheme: preferably, the adsorption mechanism 2 includes adsorption box 21, connecting head 22, plugboard 23, limit plate 24, pull ring 25, activated carbon particle 26, round hole 27, adsorption box 21 fixed connection is established at the top of bottom plate 4, connecting head 22 fixed connection is established at one end of adsorption box 21, the one end of connecting head 22 is fixedly connected with the inner wall of connecting groove 305, round hole 27 is established at one end of adsorption box 21, plugboard 23 swing connection is established at the inside of adsorption box 21, limit plate 24 fixed connection is established at the top of plugboard 23, pull ring 25 fixed connection is established at the top of limit plate 24, activated carbon particle 26 fixed connection is established at the surface of plugboard 23.

[0030] In the embodiment, the exhaust gas passes through the adsorption box 21, and the activated carbon particles 26 are used to adsorb the exhaust gas, so that the particulate matters in the exhaust gas are removed, the particulate matters are attached to the activated carbon, the exhaust gas contains various organic compounds, the activated carbon has a highly developed pore structure, when the exhaust gas passes through the activated carbon, the organic pollutant molecules are captured by the pores of the activated carbon, so that the organic pollutant molecules are removed from the exhaust gas, and the purification effect of the exhaust gas is further improved, and the emission of the particulate matters is reduced.

[0031] Embodiment 3

[0032] As Figures 1-5 shown, based on the embodiment 1, the utility model provides a technical scheme: preferably, the sound attenuation mechanism 1 includes fixed seat 11, flow guide pipe 12, sound insulation board 13, connecting pipe 14, the bottom of fixed seat 11 is fixedly connected with the top surface of bottom plate 4, the surface of flow guide pipe 12 is fixedly connected with the top surface of fixed seat 11, connecting pipe 14 fixed connection is established at one end of flow guide pipe 12, the one end of connecting pipe 14 is fixedly connected with the inner wall of round hole 27, sound insulation board 13 fixed connection is established at the top of bottom plate 4.

[0033] In this embodiment, by aligning the exhaust port with one end of the guide pipe 12, the sound insulation plate 13 can absorb sound during the test run, protecting the hearing health of the staff. The noise reduction and silencing can reduce background noise, reduce noise interference to test instruments and equipment, make the measurement results more accurate and reliable, protect some precision instruments, reduce maintenance costs and equipment replacement frequency. The sound insulation plate 13 is made of high temperature resistant sound-absorbing material.

[0034] The working principle of the exhaust gas treatment device on the aero-engine test stand will be explained in detail below.

[0035] like Figures 1-5 As shown, during the test run, the exhaust gas is aligned with the guide pipe 12. After the test run, the sound insulation plate 13 absorbs and eliminates the noise generated. The exhaust gas enters the guide pipe 12 and then re-enters the adsorption box 21 through the connecting pipe 14. The activated carbon particles 26 installed inside the adsorption box 21 adsorb the particles and adsorbable substances in the exhaust gas. Subsequently, it enters the spray box 31 through the connector 22. Before that, the catalyst is injected into the water tank 301 from the water inlet pipe 302. The motor fixed by the fixing ring 33 is started. 34. Motor 34 drives gear 1 35 and gear 2 36 meshing with gear 1 35. Gear 2 36 drives hollow tube 303. Catalyst enters hollow tube 303 from water tank 301 through water pipe 37, is sprayed out from atomizing nozzle 304, and finally flows out from drain pipe 32. Opening valve 39 can release gas. When activated carbon granules 26 need to be replaced, pull ring 25 to pull out insert plate 23. After replacement, put the new insert plate 23 into adsorption box 21 to complete the operation.

[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An exhaust gas treatment device for an aero-engine test stand, comprising a base plate (4), characterized in that: The bottom plate (4) is provided with a silencing mechanism (1) at the top, an adsorption mechanism (2) is provided at one end of the silencing mechanism (1), and a spraying mechanism (3) is provided at one end of the adsorption mechanism (2). The spraying mechanism (3) includes a spray box (31), which is fixedly connected to the top surface of the base plate (4). A drain pipe (32) is fixedly connected to one side of the spray box (31), and a fixing ring (33) is fixedly connected to one side of the spray box (31). A motor (34) is fixedly connected to the inner wall of the fixing ring (33), and a gear (35) is fixedly connected to the output end surface of the motor (34).

2. The exhaust gas treatment device for an aero-engine test stand according to claim 1, characterized in that: Gear 1 (35) is meshed with gear 2 (36), and a water guide pipe (37) is rotatably connected to the middle of gear 2 (36). A water tank (301) is fixedly connected to one end of the water guide pipe (37). The bottom of the water tank (301) is fixedly connected to the top of the spray box (31). A water inlet pipe (302) is fixedly connected to the top of the water tank (301). An air outlet pipe (38) is fixedly connected to one side of the spray box (31). A valve (39) is fixedly connected to the surface of the air outlet pipe (38).

3. The exhaust gas treatment device for an aero-engine test stand according to claim 2, characterized in that: A connecting groove (305) is provided on one side of the spray box (31). A hollow tube (303) is rotatably connected to the inner wall of the spray box (31). An atomizing nozzle (304) is fixedly connected to the surface of the hollow tube (303). The hollow tube (303) passes through one side of the spray box (31) and extends to the right. The extended end of the hollow tube (303) is fixedly connected to one side of the water guide pipe (37). One end of the water guide pipe (37) is rotatably connected to the inside of the hollow tube (303).

4. The exhaust gas treatment device for an aero-engine test stand according to claim 3, characterized in that: The adsorption mechanism (2) includes an adsorption box (21), a connector (22), an insert plate (23), a limiting plate (24), a pull ring (25), activated carbon particles (26), and a round hole (27). The adsorption box (21) is fixedly connected to the top of the base plate (4). The connector (22) is fixedly connected to one end of the adsorption box (21). One end of the connector (22) is fixedly connected to the inner wall of the connecting groove (305). The round hole (27) is opened at one end of the adsorption box (21).

5. The exhaust gas treatment device for an aero-engine test stand according to claim 4, characterized in that: The insert plate (23) is movably connected to the inside of the adsorption box (21), the limiting plate (24) is fixedly connected to the top of the insert plate (23), the pull ring (25) is fixedly connected to the top of the limiting plate (24), and the activated carbon particles (26) are fixedly connected to the surface of the insert plate (23).

6. The exhaust gas treatment device for an aero-engine test stand according to claim 5, characterized in that: The noise reduction mechanism (1) includes a fixed base (11), a guide pipe (12), a sound insulation plate (13), and a connecting pipe (14). The bottom of the fixed base (11) is fixedly connected to the top surface of the base plate (4).

7. The exhaust gas treatment device for an aero-engine test stand according to claim 6, characterized in that: The surface of the guide pipe (12) is fixedly connected to the top surface of the fixed base (11), the connecting pipe (14) is fixedly connected to one end of the guide pipe (12), one end of the connecting pipe (14) is fixedly connected to the inner wall of the round hole (27), and the sound insulation plate (13) is fixedly connected to the top of the base plate (4).

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