CN210686130U

CN210686130U - Low-flow-resistance micro-jet type variable-abortion vortex noise reduction device

Info

Publication number: CN210686130U
Application number: CN201921914951.4U
Authority: CN
Inventors: 许冬雷; 缪宏; 余文彬; 周旭; 韩非; 裴立强; 许欢
Original assignee: Jiangsu Dongze Environmental Protection Technology Co ltd
Current assignee: Jiangsu Dongze Environmental Protection Technology Co ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-06-05
Anticipated expiration: 2029-11-07

Abstract

The utility model provides a device of making an uproar falls in low flow resistance micro-jet formula unsteady flow vortex, belongs to the equipment of making an uproar technical field that falls, structural by the cabinet body, inlet line, motor, fan, sound-proof housing, soundproof cotton layer, fall the pipeline of making an uproar, access door, wind channel silencer, wind channel, gas vent connection constitute, the utility model discloses novel structure falls the structure of making an uproar through micro-jet sound lining and wind channel integral type, forms positive or negative micro-jet, promotes sound vortex conversion, has improved the sound absorption performance of sound lining, and the sawtooth crown structure of air exit for having unsteady flow vortex function can produce a large amount of flow direction whirlpools, forces vortex volume and two vector directions unanimous of velocity of flow in the flow field to reach the purpose of making an uproar, sound-proof housing adopts the nanometer composite material layer, has reduced fan and motor.

Description

Low-flow-resistance micro-jet type variable-abortion vortex noise reduction device

Technical Field

The utility model belongs to the technical field of the equipment of making an uproar falls, a dust removal and noise reduction device is related to, specific saying so relates to a low flow resistance micro-jet type becomes abortion whirlpool and falls device of making an uproar.

Background

The gas turbine is modern energy equipment which is simple in system, novel, environment-friendly, efficient and rapid in starting and stopping, mainly takes gas and air as working media, compressed air also plays a role in ventilating and cooling high-temperature heat components and lubricating oil, and the performance and the operation reliability of the gas turbine are influenced by the quality of inlet air. Generally speaking, the air quantity required by the gas turbine unit during operation is 40-50 times of the fuel quantity, the ambient air is often filled with various impurity particles, impurities are easy to deposit and scale on the blades and the channels of the gas turbine compressor, and can be accumulated for a long time, so that the invasion and corrosion damage can be caused to the blades, the safe operation of the unit is influenced, the performance aging of the gas turbine can be accelerated, meanwhile, an air quality and purity detection and monitoring system is also lacked, and the feedback operation cannot be timely and effectively carried out. In order to solve the problem, an air purification system of the gas turbine unit needs to be additionally arranged, and the gas turbine inlet air filtration system is mainly a device for receiving air, filtering, silencing and guiding atmosphere into the compressor inlet casing and mainly used for filtering out impurity particles in the air, such as dust, sand, inorganic salt, oil gas and the like, and liquid impurities in the air, such as rain drops, fog drops and the like.

At present, the gas inlet filtering and purifying equipment in the gas power generation industry mainly comprises: conventional arresting three-stage filtering device, cyclone type and washable type filtering device, pulse self-cleaning back-blowing air filtering device and air inlet filtering device with electrostatic dust collection technology. The air inlet filtering device with the electrostatic dust removal technology is widely used in the gas power generation production process, and has the advantages of high dust removal efficiency, small pressure loss, simplicity in operation, large flue gas treatment amount, low power consumption, durability of equipment and the likeThe dust content can be less than or equal to 0.03g/m³However, the secondary pollution is easy to cause because of the defects of large mass, low self-cleaning efficiency, secondary dust emission and the like. The dust removal and purification equipment is arranged, so that the pollution of industrial gas and dust can be reduced, but the problem of high noise of a fan, an air channel and a discharge port is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a little efflux formula of low flow resistance becomes abortion whirlpool and falls device of making an uproar to the big problem of fan, wind channel and discharge port noise among the existing equipment, can effectively solve the big problem of motor and wind channel noise.

The technical scheme of the utility model is that: a low flow resistance micro jet type variable flow generation vortex noise reduction device comprises a cabinet body and an air inlet pipeline; the method is characterized in that: the noise reduction device is also formed by connecting a motor, a fan, a sound-proof cover, a sound-proof cotton layer, a noise reduction pipeline, an access door, an air duct silencer, an air duct and an exhaust port; motor, fan, admission line all set up the top at the cabinet body, the motor is connected with the fan drive, the air intake of fan with the admission line is connected, admission line one end stretches out in the outside of the cabinet body, the sound-proof housing cover is established the outside of motor, fan and admission line, the surface of the cabinet body is equipped with the soundproof cotton layer, the inside of the cabinet body is equipped with a plurality of noise reduction pipes, noise reduction pipe with the air outlet of fan is connected, the both sides inner wall of the cabinet body all is equipped with the access door of 3 equidistance, the bottom connection of the cabinet body is equipped with the wind channel silencer, be equipped with wind channel and gas vent on the wind channel silencer in proper order, the wind channel is connected to form by last wind channel and lower wind channel.

And a wind shield is connected to the outer end of the air inlet pipeline.

The inside of the exhaust port is of a sawtooth crown-shaped exhaust port structure with a variable flow vortex function.

The interior of the upper air duct is provided with sound lining small holes which are used for forming positive or negative micro jet flow and promoting sound vortex conversion, so that the sound absorption performance of the sound lining is improved.

The lower air duct is internally provided with a cross-shaped particle filling structure.

The sound-proof housing is lined with a nano aerogel composite material layer.

The utility model has the advantages that: the utility model provides a low flow resistance micro-jet type becomes abortion vortex and falls device of making an uproar, structural by the cabinet body, inlet duct, motor, fan, sound-proof housing, soundproof cotton layer, fall the pipeline of making an uproar, access door, wind channel silencer, wind channel, gas vent connection constitution, the utility model discloses novel structure falls the structure of making an uproar through micro-jet sound lining and wind channel integral type, forms positive or negative micro-jet, promotes sound vortex conversion, has improved the sound absorption performance of sound lining, and the sawtooth crown structure of air exit for having the abortion vortex function of becoming abortion can produce a large amount of flow direction whirlpools, forces the vortex volume unanimous with the direction of velocity of flow two vectors in the flow field to reach the purpose of making an uproar, the sound-proof housing adopts the nanometer composite material layer, has reduced fan and motor noise by a wide margin, has effectively solved present.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic sectional view of the structure at a-a in fig. 1.

Fig. 3 is a schematic cross-sectional view at B-B in fig. 1.

Fig. 4 is a schematic cross-sectional view at C-C in fig. 1.

In the figure: the air conditioner comprises an exhaust port 1, an air duct 2, an upper air duct 2-1, a lower air duct 2-2, an air duct silencer 3, a noise reduction pipeline 4, a soundproof cotton layer 5, a motor 6, a fan 7, a soundproof cover 8, an air inlet pipeline 9, a wind shield 10, an access door 11 and a cabinet body 12.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-4, a low flow resistance micro-jet type variable flow eddy noise reduction device is formed by connecting a cabinet body 12, an air inlet pipeline 9, a motor 6, a fan 7, a sound-proof cover 8, a sound-proof cotton layer 5, a noise reduction pipeline 4, an access door 11, an air duct silencer 3, an air duct 2 and an exhaust port 1; the motor 6, the fan 7 and the air inlet pipeline 9 are all arranged at the top of the cabinet body 12, the motor 6 is in driving connection with the fan 7, an air inlet of the fan 7 is connected with the air inlet pipeline 9, one end of the air inlet pipeline 9 extends out of the cabinet body 12, the sound-proof cover 8 covers the motor 6, the fan 7 and the air inlet pipeline 9, a sound-proof cotton layer 5 is arranged on the outer surface of the cabinet body 12, a plurality of noise reduction pipelines 4 are arranged inside the cabinet body 12, the noise reduction pipelines 4 are connected with an air outlet of the

fan

7, 3 equidistant access doors 11 are arranged on the inner walls of two sides of the cabinet body 12, an air duct silencer 3 is connected to the bottom of the cabinet body 12, an air duct 2 and an air outlet 1 are sequentially arranged on the air duct silencer 3, and the air duct 2.

As shown in fig. 1-4, a low flow resistance micro-jet type variable flow generation vortex noise reduction device, the outer end of an air inlet pipeline 9 is connected with a wind shield 10; the inside of the exhaust port 1 is a sawtooth crown-shaped exhaust port structure with a variable flow vortex function; the interior of the upper air duct 2-1 is provided with sound lining small holes which are used for forming positive or negative micro jet flow and promoting sound vortex conversion, so that the sound absorption performance of the sound lining is improved; the lower air duct 2-2 is internally provided with a cross-shaped particle filling structure; the sound-proof housing 8 is lined with a nano aerogel composite layer.

As shown in fig. 1-4, the operating principle of a low flow resistance micro-jet variable flow eddy noise reducer is as follows: the sound-proof housing is lined with the nano aerogel composite material layer, the nano aerogel composite material has the characteristics of light weight, porosity, high temperature resistance, high strength and the like, and the noise of the fan and the motor can be greatly reduced by lining the housing; the outer side of the cabinet body is wrapped with a soundproof cotton layer 5, a plurality of noise reduction pipelines 4 are distributed in the cabinet body, and the inner walls of two sides of the cabinet body are respectively provided with 3 equidistant access doors 11; an air duct silencer 3 is installed on one side of the bottom of the vertical cabinet device, the air duct silencer 3 is sequentially connected with an air duct 2 and an air exhaust port 1, the air duct is of a micro-jet sound liner and air duct integrated noise reduction structure, and micro air flow (blowing and sucking) is introduced or sucked into small holes of the sound liner to form positive or negative micro jets, so that sound vortex conversion can be promoted, and the sound absorption performance of the sound liner is improved. The acoustic impedance of the acoustic liner can be controlled to a certain extent by adjusting the velocity of the micro-jet; the internal structure of the exhaust port 1 is a sawtooth crown-shaped exhaust port structure, the sawtooth crown-shaped structure can generate a large amount of flow direction vortexes, and the direction of the vortexes and the direction of two vectors of the flow velocity are forced to be consistent in a flow field, so that the purpose of noise reduction is achieved.

Claims

1. A low flow resistance micro jet type variable flow generation vortex noise reduction device comprises a cabinet body (12) and an air inlet pipeline (9); the method is characterized in that: the noise reduction device is also formed by connecting a motor (6), a fan (7), a sound-proof cover (8), a sound-proof cotton layer (5), a noise reduction pipeline (4), an access door (11), an air duct silencer (3), an air duct (2) and an exhaust port (1); the motor (6), the fan (7) and the air inlet pipeline (9) are all arranged at the top of the cabinet body (12), the motor (6) is in driving connection with the fan (7), an air inlet of the fan (7) is connected with the air inlet pipeline (9), one end of the air inlet pipeline (9) extends out of the cabinet body (12), the sound-proof cover (8) covers the motor (6), the fan (7) and the air inlet pipeline (9), a sound-proof cotton layer (5) is arranged on the outer surface of the cabinet body (12), a plurality of noise reduction pipelines (4) are arranged inside the cabinet body (12), the noise reduction pipelines (4) are connected with an air outlet of the fan (7), the inner walls of two sides of the cabinet body (12) are respectively provided with 3 maintenance doors (11) with equal distances, an air duct silencer (3) is connected with the bottom of the cabinet body (12), and an air duct (2) and an air outlet (1) are sequentially arranged on the air duct silencer (3), the air duct (2) is formed by connecting an upper air duct (2-1) and a lower air duct (2-2).

2. The low flow resistance micro-fluidic variable flow eddy noise reducer of claim 1, wherein: and a wind shield (10) is connected to the outer end of the air inlet pipeline (9).

3. The low flow resistance micro-fluidic variable flow eddy noise reducer of claim 1, wherein: the exhaust port (1) is internally provided with a sawtooth crown-shaped exhaust port structure with a variable flow vortex function.

4. The low flow resistance micro-fluidic variable flow eddy noise reducer of claim 1, wherein: the interior of the upper air duct (2-1) is provided with sound lining small holes which are used for forming positive or negative micro jet flow and promoting sound vortex conversion, so that the sound absorption performance of the sound lining is improved.

5. The low flow resistance micro-fluidic variable flow eddy noise reducer of claim 1, wherein: the interior of the lower air duct (2-2) is of a cross-shaped particle filling structure.

6. The low flow resistance micro-fluidic variable flow eddy noise reducer of claim 1, wherein: the sound-proof housing (8) is lined with a nano aerogel composite material layer.