CN218624773U - Thermal power plant's fan vibration/noise reduction device - Google Patents

Abstract

The utility model discloses a fan vibration/noise reduction device of thermal power plant belongs to the relevant technical field of thermal power plant, including vibration/noise reduction mechanism, vibration/noise reduction mechanism internally mounted has the fan, vibration/noise reduction mechanism includes upper cover subassembly, shell subassembly, elasticity dustproof component, subassembly and damper assembly that goes to the bottom, the shell subassembly includes first casing, second skeleton, second casing, filter screen, second sound absorption piece and wedge sound absorption strip, the upper cover subassembly is installed at shell subassembly top, the upper cover subassembly includes first apron, first skeleton, second apron and first sound absorption piece, the utility model discloses fan vibration/noise reduction device of thermal power plant inhales the sound piece through a plurality of wedge sound absorption strip cooperation second, can more high-efficiently inhale the sound, cooperates double-deck hollow upper cover subassembly, shell subassembly and shell subassembly that goes to the bottom, and through the flexible elasticity dustproof component of double-deck filter screen and shell, and dustproof effectual.

Description

Thermal power plant's fan vibration/noise reduction device

Technical Field

The utility model relates to a relevant device field of thermal power plant specifically is a fan vibration/noise reduction device of thermal power plant.

Background

A thermal power plant, referred to as a thermal power plant, is a plant that produces electric energy using a combustible (e.g., coal) as a fuel. The basic production process is as follows: when the fuel is burnt, water is heated to generate steam, chemical energy of the fuel is converted into heat energy, the steam pressure pushes a steam turbine to rotate, the heat energy is converted into mechanical energy, and then the steam turbine drives a generator to rotate, so that the mechanical energy is converted into electric energy. In a thermal power plant, a fan is often used for air supply or air exhaust and the like; the fan generally comprises a fan, an impeller shell and the like, in operation, a mounting seat below the fan is directly fixed to a specified position by using an expansion bolt, and the fan drives the impeller to rotate so as to generate vibration, so that a large amount of noise pollution is generated and the working environment is influenced, and a damping and noise reducing device is required to damp and reduce noise of the fan of the thermal power plant;

the patent number CN202021380393.0 discloses a thermal power plant fan damping and noise reducing device, and vibration caused by the work of a fan can be reduced through arrangement of a buffer column and a buffer pad; the noise generated by the working of the fan can be reduced by arranging the noise reduction cover and the micropore sound absorption cotton; the fan can be fixed and fixed firmly through the arrangement of the casing bracket, the motor bracket and the supporting plate.

The fan vibration/noise reduction device of thermal power plant that publishes in the above-mentioned patent only inhales the sound cotton through making an uproar cover and micropore and inhales the sound, and it is poor to inhale the sound effect, and because diffuse coal ash etc. in the thermal power plant air, coal ash gets into from the ventilation hole, easily falls on fan and damping device, is difficult to the clearance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fan vibration/noise reduction device of thermal power plant, the utility model discloses fan vibration/noise reduction device of thermal power plant can more the efficient inhale the sound through a plurality of wedges sound absorption strip cooperation second sound absorption piece, cooperates double-deck hollow upper cover subassembly, shell subassembly and the subassembly of going to the bottom, and it is effectual to give sound insulation, and through the flexible dustproof subassembly of elasticity of double-deck filter screen and shell, dustproof effectual to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

fan vibration/noise reduction device of thermal power plant, including vibration/noise reduction mechanism, the fan is equipped with in the vibration/noise reduction mechanism, vibration/noise reduction mechanism includes upper cover subassembly, shell subassembly, the dustproof subassembly of elasticity, subassembly and damper assembly go to the bottom, the upper cover subassembly is installed at shell subassembly top, the subassembly of going to the bottom is installed to shell subassembly bottom, damper assembly is installed to subassembly bottom going to the bottom, subassembly and damper assembly lateral wall demountable installation have the dustproof subassembly of elasticity to go to the bottom.

The fan shock absorption and noise reduction device for the thermal power plant comprises an upper cover assembly and a lower cover assembly, wherein the upper cover assembly comprises a first cover plate, the first cover plate is connected with a second cover plate through a first framework, and the second cover plate is connected with a first sound absorption sheet; the lower bottom assembly comprises a third sound absorption sheet, the top of the first bottom plate is provided with the third sound absorption sheet, and the first bottom plate is connected with a second bottom plate through a third framework; the shock absorption assembly comprises a spring, an upper column, a lower sleeve and a third bottom plate; the second bottom plate is equipped with spring and upper prop, upper prop sliding connection is at the lower cover inside wall, spring and lower cover bottom all are connected with the third bottom plate.

The thermal power plant fan damping and noise reducing device comprises a shell assembly, wherein the outer side wall of the shell assembly comprises a first shell, a second shell is fixedly connected to the outer side wall of the first shell through a second framework, filter screens are respectively installed at air ports of the first shell and the second shell, a second sound absorbing sheet is installed on the inner side wall of the first shell, and a wedge sound absorbing strip is installed on the inner side wall of the second sound absorbing sheet; the elastic dustproof assembly comprises an upper rubber frame, a rubber telescopic cylinder and a lower rubber frame; the top of the rubber telescopic cylinder is integrally connected with an upper rubber frame, and the bottom of the rubber telescopic cylinder is integrally connected with a lower rubber frame.

Advantageous effects

The utility model discloses fan vibration/noise reduction device of thermal power plant inhales sound piece through a plurality of wedges sound absorption strip cooperation second, can more the efficient inhale the sound, cooperate double-deck hollow upper cover subassembly, shell subassembly and the subassembly that goes to the bottom, it is effectual to give sound insulation, and through the flexible dustproof subassembly of double-deck filter screen and shell, it is dustproof effectual, solve the fan vibration/noise reduction device of thermal power plant who publishes in the above-mentioned patent and only inhale the sound through noise reduction cover and micropore sound absorption cotton and inhale the sound, sound absorbing effect is poor, and because coal ash etc. is diffused in the thermal power plant air, coal ash gets into from the ventilation hole, easily fall on fan and damping device, be difficult to the problem of clearance.

Specifically speaking, the utility model discloses 2 vibration/noise reduction devices of thermal power plant fan pass through a plurality of wedges sound absorption strip 1026 cooperation second and inhale sound sheet 1025, can inhale the sound more efficiently, cooperation double-deck hollow upper cover subassembly 101, shell subassembly 102 and lower bottom assembly 104, it is effectual to give sound insulation, and through the flexible dustproof subassembly 103 of double-deck filter screen 1024 and shell, it is dustproof effectual, when fan 2 produces the noise, the sound wave is from the most advanced incident of a plurality of wedges sound absorption strip 1026, because the gradual transition acoustic impedance of sound-absorbing layer, the sound that porous material made splits sound absorption strip and the matching that can be better of air, make the sound wave spread into second and inhale sound sheet 1025, and absorbed by the efficient, the first sound absorption sheet 1014 and the third sound absorption sheet 1041 of top and bottom also inhale the sound in step, interbedded upper cover subassembly 101 simultaneously, shell subassembly 102 and lower bottom assembly 104's syllable-dividing is effectual, the cooperation is used effectually, when fan 2 vibrates, upper cover subassembly 101, fan 2, shell subassembly 102 and lower bottom assembly 104 form wholly transmit the vibration for vibration/noise reduction assembly 105, spring 1051 upper cover 1053 is along the slip direction that the flexible subassembly 105, prevent the flexible subassembly 105 that the flexible dust absorption on the dust absorption screen 105, it can not descend along with the flexible subassembly to prevent the dust absorption on the dust absorption screen 105.

Drawings

Fig. 1 is a schematic structural diagram of a thermal power plant fan damping and noise reducing device according to an embodiment of the present invention;

fig. 2 is an explosion structure schematic diagram of a thermal power plant fan damping and noise reducing device according to an embodiment of the present invention;

fig. 3 is an exploded schematic view of a thermal power plant fan damping and noise reducing device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram at a in fig. 3.

In the figure: 1. a vibration and noise reduction mechanism; 101. an upper cover assembly; 1011. a first cover plate; 1012. a first skeleton; 1013. a second cover plate; 1014. a first sound absorbing sheet; 102. a housing assembly; 1021. a first housing; 1022. a second skeleton; 1023. a second housing; 1024. a filter screen; 1025. a second sound absorbing sheet; 1026. a wedge sound absorption strip; 103. an elastic dust-proof component; 1031. mounting a rubber frame; 1032. a rubber telescopic cylinder; 1033. a lower rubber frame; 104. a lower bottom assembly; 1041. a third sound absorbing sheet; 1042. a first base plate; 1043. a third skeleton; 1044. a second base plate; 105. a shock absorbing assembly; 1051. a spring; 1052. putting the column on; 1053. sleeving; 1054. a third base plate; 2. a fan.

Detailed Description

Please refer to fig. 1-4, in an embodiment of the present invention, a thermal power plant fan damping and noise reducing device, including damping and noise reducing mechanism 1, damping and noise reducing mechanism 1 internally mounted has a fan 2, damping and noise reducing mechanism 1 includes upper cover assembly 101, shell assembly 102, elasticity dustproof assembly 103, lower bottom assembly 104 and damping assembly 105, shell assembly 102 includes first casing 1021, second skeleton 1022, second casing 1023, filter screen 1024, second sound absorption piece 1025 and sharp sound absorption bar 1026, shell assembly 102 installs upper cover assembly 101 at the top, upper cover assembly 101 includes first apron 1011, first skeleton 1012, second apron 1013 and first sound absorption piece 1014, shell assembly 104 is installed to shell assembly 102 bottom, lower bottom assembly 104 includes third sound absorption piece 1041, first bottom plate 1042, third skeleton 1043 and second bottom plate 1044, damping assembly 105 is installed to shell assembly 104 bottom, damping assembly 105 includes spring 1051, upper column 1052, lower cover 1053 and third bottom plate 1054, lower bottom assembly 104 and damping assembly 105 can dismantle and install elasticity dustproof assembly 103, elasticity dustproof assembly 103 includes upper rubber 1031, the noise reduction assembly 1033, the noise reduction device cooperates with a plurality of sound absorption pieces 104, the sound absorption effect of the utility model, the noise reduction device is more efficient through the two-absorbing rubber components 1032.

The bottom of the first cover plate 1011 is fixedly connected with a second cover plate 1013 through a first framework 1012, the bottom of the second cover plate 1013 is provided with a first sound absorption sheet 1014, and the sound absorption and insulation effects at the top are good; the outer side wall of the first shell 1021 is fixedly connected with a second shell 1023 through a second framework 1022, filter screens 1024 are installed at air ports of the first shell 1021 and the second shell 1023, a second sound-absorbing sheet 1025 is installed on the inner side wall of the first shell 1021, and a plurality of wedge sound-absorbing strips 1026 are installed on the inner side wall of the second sound-absorbing sheet 1025, so that the sound-absorbing and sound-insulating effects are good; the top of the rubber telescopic cylinder 1032 is integrally connected with an upper rubber frame 1031, the bottom of the rubber telescopic cylinder 1032 is integrally connected with a lower rubber frame 1033, and the rubber telescopic cylinder 1032 is telescopic, so that the dustproof effect is good on the basis of not obstructing the damping of the damping component 105; the top of the first bottom plate 1042 is provided with a third sound absorbing sheet 1041, the bottom of the first bottom plate 1042 is fixedly connected with a second bottom plate 1044 through a third framework 1043, and the sound absorbing and insulating effect of the bottom is good; the spring 1051 and the upper column 1052 are installed at the bottom of the second bottom plate 1044, the upper column 1052 is slidably connected to the inner side wall of the lower sleeve 1053, the third bottom plate 1054 is connected to the bottoms of the spring 1051 and the lower sleeve 1053, when the fan 2 vibrates, the whole formed by the upper cover assembly 101, the fan 2, the shell assembly 102 and the lower bottom assembly 104 transmits the vibration to the damping assembly 105, and the spring 1051 elastically dampens along the direction in which the upper column 1052 slides in the lower sleeve 1053.

Claims (3)

1. The utility model provides a fan vibration/noise reduction device of thermal power plant which characterized in that: including vibration/noise reduction mechanism, the fan is equipped with in the vibration/noise reduction mechanism, vibration/noise reduction mechanism includes upper cover subassembly, shell subassembly, the dustproof subassembly of elasticity, subassembly and damper assembly go to the bottom, the upper cover subassembly is installed at shell subassembly top, the subassembly of going to the bottom is installed to shell subassembly bottom, damper assembly is installed to subassembly bottom of going to the bottom, subassembly and damper assembly lateral wall demountable installation have the dustproof subassembly of elasticity to go to the bottom.

2. The thermal power plant fan vibration/noise reduction device according to claim 1, characterized in that: the upper cover assembly comprises a first cover plate, the first cover plate is connected with a second cover plate through a first framework, and the second cover plate is connected with a first sound absorption sheet; the lower bottom assembly comprises a third sound absorption sheet, the top of the first bottom plate is provided with the third sound absorption sheet, and the first bottom plate is connected with a second bottom plate through a third framework; the shock absorption assembly comprises a spring, an upper column, a lower sleeve and a third bottom plate; the second bottom plate is equipped with spring and upper prop, upper prop sliding connection is at the lower cover inside wall, spring and lower cover bottom all are connected with the third bottom plate.

3. The thermal power plant fan vibration/noise reduction device according to claim 2, characterized in that: the shell assembly comprises a first shell, the outer side wall of the first shell is fixedly connected with a second shell through a second framework, filter screens are installed on air ports of the first shell and the second shell, a second sound absorption sheet is installed on the inner side wall of the first shell, and a wedge sound absorption strip is installed on the inner side wall of the second sound absorption sheet; the elastic dustproof assembly comprises an upper rubber frame, a rubber telescopic cylinder and a lower rubber frame; the top of the rubber telescopic cylinder is integrally connected with an upper rubber frame, and the bottom of the rubber telescopic cylinder is integrally connected with a lower rubber frame.

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