CN109322599A - A kind of indoor substation ventilation sound insulation gate - Google Patents
A kind of indoor substation ventilation sound insulation gate Download PDFInfo
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- CN109322599A CN109322599A CN201811498260.0A CN201811498260A CN109322599A CN 109322599 A CN109322599 A CN 109322599A CN 201811498260 A CN201811498260 A CN 201811498260A CN 109322599 A CN109322599 A CN 109322599A
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- Prior art keywords
- noise reduction
- sound
- ventilating noise
- sound insulation
- indoor
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/20—Doors, windows, or like closures for special purposes; Border constructions therefor for insulation against noise
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
- E06B2007/023—Air flow induced by fan
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention discloses a kind of indoor substation ventilation sound insulation gate, including sound absorption module, ventilating noise reduction channel, active control system, connector and affiliated facility.The sound absorption module includes that punching facing aluminium sheet, glass sound-absorbing cotton, back-fire relief glass magnesium board and explosion-proof relief plate, centre have steel structure framework to support from the inside to the outside；The ventilating noise reduction channel is cuboid cavity structure, and cavity wall architecture is lightgage steel joist, and be staggered rectangular ventilation hole inside and outside channel；The active control system includes controller, primary microphone, secondary sound source, error microphone and peripheral circuit.The present invention can effectively eliminate transformer low frequency line spectrum noise while meeting and entering the wind demand in transformer room using main passive composite sound control technology；Using modularized design, it is easily installed and disassembles and maintains maintenance, it is practical；Whole design aesthetics is strong, has the adaptability to match with ambient enviroment.
Description
Technical field
The present invention relates to noise pollutions and prevention and control field, specially a kind of indoor substation ventilation sound insulation gate.
Background technique
As substation's urbanization phenomenon is increasingly severe, Yuan Jian substation periphery creates many residential blocks, creates power transformation
It stands and much also has to addressing in the more location in residential block, substation's neighboring buildings gradually rise with the density of population, substation's phase
Neighbouring region acoustic environment functional areas classification is required to be changed into 2 class area limit values even 1 class area limit value rapidly by 3 class area emission limits.Become
Strong influence can be generated to ambient enviroment by generating the noise based on low frequency in power station in the equipment running process such as transformer, perhaps
Multi-Substation by nearby residents a large amount of complaints, therefore develop substation's noise abatement the relevant technologies it is especially urgent.
Substation is to increase its whole noise reduction effect in city, is usually built as indoor substation, for the ease of the fortune of transformer
Defeated and maintenance, indoor substation generally require one face gate of setting, and gate size is larger, common are 6m × 6m or 6m × 8m,
Therefore indoor substation gate is its critically important one of noise transmission approach.Meanwhile transformer can generate in the process of running
Larger heat causes transformer to shut down and even causes explosion, in transformer room if not to be released in time may cause high temperature failure
Cross-ventilation ventilation be common heat dissipation, also often as one of air inlet path, this also directly reduces indoor at gate
The soundproof effect of substation gate.Therefore, the paradox of indoor substation main transformer room gate sound insulation and ventilation is solved the problems, such as,
Design production indoor substation ventilation sound insulation gate has great importance.
Existing main transformer chamber ventilated soundproof door is mainly the following design: the first, using punching stainless-steel roll
Curtain door is divulged information by a large amount of apertures, and this rolling screen door is generally single layer structure, and a large amount of cavities can seriously affect its sound insulation property
Can, therefore whole oise insulation factor is low, while draught area is also insufficient；Second, using steel door is opened flat, the slit that gathers on door is used for
Ventilation, the oise insulation factor at this gate is slightly better than rolling screen door, but oise insulation factor is still smaller, especially very to low-frequency noise sound insulation effect
Difference；The third, installs ventilating noise-elimination blinds using passive sound absorption formula soundproof door, while in soundproof door lower part, passes through blinds
Channel is aerated, and this soundproof door top has larger oise insulation factor, but leg space ventilation disappears due to using multilayer sound absorption structure
Sound blinds is very poor to low-frequency noise noise reduction effect, is usually designed to noise elimination blinds for enhancing sound transmission loss mazy, this is to logical
Air quantity causes large effect again, therefore whole ventilation soundproof effect is bad.Therefore it is impossible to meet practical need for the prior art
It asks.
Summary of the invention
Small in order to solve existing indoor substation ventilation soundproof door sound transmission loss, sound insulation frequency range is narrow, and ventilation quantity is insufficient, Wu Fayou
Effect solves the problems, such as low frequency spectrum lines noise, and the present invention provides a kind of indoor substation ventilation sound insulation gate.
Technical solution of the present invention:
A kind of indoor substation is divulged information sound insulation gate, it is characterised in that: including inhale gobo body, doorframe, sound absorption module,
Ventilating noise reduction channel mounting hole, ventilating noise reduction channel and active control system,
The doorframe is fixedly mounted on wall by built-in fitting inhales gobo body to support；
Connector is made with T-shaped tabletting between the suction sound insulation module and is screwed, constitutes and inhales gobo body；
Ventilating noise reduction channel mounting hole is reserved in the lower part for inhaling gobo body, embedding at the mounting hole of each ventilating noise reduction channel
Enter a ventilating noise reduction channel, a set of active control system of installation in each ventilating noise reduction channel.
The sound absorption module includes punching facing aluminium sheet, glass sound-absorbing cotton, back-fire relief glass magnesium board and explosion-proof lets out from the inside to the outside
Pressing plate, centre have steel structure framework to support.
The ventilating noise reduction channel is cuboid cavity structure, and cavity wall architecture is lightgage steel joist, ventilating noise reduction channel
The rectangular ventilation hole in outside is arranged in outside, the rectangular ventilation hole in indoor is arranged on the inside of ventilating noise reduction channel, ventilating noise reduction channel is close
Indoor is equipped with the opening handle for being convenient for system maintenance and maintenance in channel on one side, and the rectangular disposed at air vent in outside is equipped with use
To filter the dust-proof primary filter screen of net air inlet air, the rectangular ventilation hole top in indoor is equipped with automation back-fire relief baffle.
The active control system includes controller, with reference to microphone, secondary sound source, error microphone and peripheral circuit,
The active control system is installed on ventilating noise reduction channel one side, is arranged in ventilating noise reduction channel with reference to microphone and faces room
The rectangular ventilation hole side in inside, error microphone are arranged in the ventilating noise reduction channel close to the rectangular ventilation hole one in outside
Side, controller and secondary sound source are arranged between reference microphone and error microphone, wherein secondary sound source with refer to microphone
Distance be 0.4m, controller is separately connected with reference to microphone, error microphone and secondary sound source.
The controller and secondary sound source are individually placed in dust shield case, are respectively arranged with outside with reference to microphone and error microphone
Windproof and dustproof set.
The automation back-fire relief baffle includes whole baffle, smoke inductor, the automatic control switch that can cover ventilation hole
Device.
The maximum secting area of the sound absorption module is not more than 1 square metre, and the punching facing aluminium sheet punching rate is not less than
25%；The glass sound-absorbing cotton thickness is not less than 50mm, is wrapped up outside glass sound-absorbing cotton by glass-fiber-fabric；The back-fire relief glass magnesium board is thick
Degree is 5mm~10mm；The explosion-proof relief plate thickness is 10mm~15mm.
Long 1.6m~the 2m in ventilating noise reduction channel, channel inner section side length are not more than 400mm, the rectangular ventilation hole in indoor
It is not more than 400mm with the rectangular ventilation hole side length in outside.
Distance of the bottom far from ground of ventilating noise reduction channel mounting hole is not less than 30cm.
It is sealed between wall using alternating expression sealing joint strip at the top and bottom of the sound absorbing-insulating body.
Compared with prior art, the beneficial effects of the present invention are: meeting transformation using main passive composite sound control technology
There is larger oise insulation factor, insulate against sound bandwidth, can effectively eliminate transformer low frequency line spectrum noise in device room while air inlet demand；It adopts
With modularized design, it is easily installed and disassembles and maintains maintenance, it is practical；Using Explosion-proof Design and channel automation back-fire relief gear
The intensity of a fire of plate, the works fragment secondary injury and fire incident that can prevent Explosion of Transformer accident from causing is stretched outward, is had
Very high safety；Whole design aesthetics is strong, has the adaptability to match with ambient enviroment.
Detailed description of the invention
A kind of Fig. 1: indoor substation ventilation sound insulation gate main view provided in an embodiment of the present invention；
A kind of Fig. 2: indoor substation ventilation sound insulation gate side view provided in an embodiment of the present invention；
Fig. 3: sound absorption module the schematic diagram of the section structure provided in an embodiment of the present invention；
Fig. 4: ventilating noise reduction channel provided in an embodiment of the present invention and active control system the schematic diagram of the section structure.
In figure: 1- inhales gobo body, 2- doorframe, and 3- inhales sound insulation module, 4- T-shaped tabletting, the installation of 5- ventilating noise reduction channel
Hole, the rectangular ventilation hole in the indoor 6-, 7- ventilating noise reduction channel, the rectangular ventilation hole in the outside 8-, the dust-proof primary filter screen of 9-, 10- steel
Structural framework, 11- automate back-fire relief baffle, 12- active control system, 13- punching facing aluminium sheet, 14- glass-fiber-fabric, 15- glass
Acoustical cotton, 16- back-fire relief glass magnesium board, 17- explosion-proof relief plate, the channel 18- cavity wall, 19- refer to microphone, 20- controller, 21- times
Grade sound source, 22- peripheral circuit, 23- error microphone, 24- opening handle.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of indoor substation ventilation sound insulation gate described in the embodiment of the present invention,
Including sound absorption module 3, ventilating noise reduction channel 5, active control system 12, connector and affiliated facility.Sound absorption module 3 is by even
Fitting T-shaped tabletting 4 connects and composes the suction gobo body 1 at ventilation sound insulation gate, and several ventilating noise reduction channel installations are reserved in lower part
Hole 5 is embedded in a ventilating noise reduction channel 7 at each mounting hole, a set of active control system of installation in each ventilating noise reduction channel 7
12。
A kind of indoor substation ventilation sound insulation gate overall size provided in an embodiment of the present invention are as follows: length × height=6m × 5m,
Top citadel height 3m, thickness about 0.1m, leg space ventilation area height 2m, thickness about 0.5m.Indoor substation ventilation every
Using complete modular, when installation, first installs doorframe 2 at sound gate, and built-in fitting is installed between doorframe and wall to fixed gate, so
Sequentially sound insulation module 3 is inhaled in installation afterwards, is inhaled and is made connector with T-shaped tabletting 4 and be screwed between sound insulation module 3, constitute inhale every
Ventilating noise reduction channel 7 is finally embedded in and inhales the reserved ventilating noise reduction channel mounting hole 5 in 1 lower part of gobo body, needs by sound screen body 1
Inverted sequence is dismantled when opening gate.
As shown in figure 3,3 overall size of suction sound insulation module are as follows: length × height × thickness=1.1m × 0.7m × 0.126m, by interior
To including outside punching facing aluminium sheet 13, glass sound-absorbing cotton 15, back-fire relief glass magnesium board 16 and explosion-proof relief plate 17, there is steel construction bone in centre
Frame 10 supports.The punching facing aluminium sheet 13 is with a thickness of 1mm, punching aperture 2mm, punching rate 30%；The glass sound-absorbing
Cotton 15 is wrapped up with a thickness of 100mm, bulk density 48kg/m3, outside by glass-fiber-fabric 14；The back-fire relief glass magnesium board 16, with a thickness of 10mm；
The explosion-proof relief plate 17 is with a thickness of 15mm.Every piece of suction sound insulation module 3 has an identical structure, adjacent 3 gap of suction sound insulation module by
T-shaped tabletting 4 is filled, and to reduce noise leakage, the suction gobo body 1 being made of suction sound insulation module 3 and T-shaped tabletting 4 is put down
Equal oise insulation factor is more than 30dBA.
The transformer room roof of the embodiment of the present invention is equipped with centrifugal blower, generally natural air inlet-strong-force exhaust ventilation mould
Formula, required ventilation quantity about 30000m3/ h, under roof ventilator effect, indoor negative pressure makes air inlet wind speed be 4.5m/s.Such as figure
Shown in 1, a kind of indoor substation ventilation sound insulation gate provided in an embodiment of the present invention includes 12 ventilating noise reduction channels 7, each
The rectangular ventilation hole side length in ventilating noise reduction channel 7 is 0.4m, and area is 0.16 ㎡, i.e., the ventilation gross area is 1.92 ㎡, practical logical
Air quantity is 31104m3/ h can meet air-conditioning requirement.Mounting hole 5 bottom in the ventilating noise reduction channel can prevent rain far from ground 0.4m
Its ponding diffuses in.In actual use, the number in ventilating noise reduction channel 7 can flexibly be increased and decreased according to required ventilation quantity.
As shown in Fig. 2, the ventilating noise reduction channel 7 is embedded in 1 lower part of sound absorbing-insulating body, overall size are as follows: long × high × thick
=0.532m × 1.6m × 0.532m.
As shown in figure 4, the ventilating noise reduction channel 7 is cuboid cavity structure, 18 architecture of cavity wall is lightgage steel joist,
It is porous aluminium sheet on the inside of cavity wall, is explosion-proof relief plate, internal filling glass acoustical cotton on the outside of cavity wall.Wherein porous aluminium plate thickness is
1mm, aperture 2mm, punching rate 25%；Glass sound-absorbing cotton bulk density is 48Kg/m3, with a thickness of 50mm, wrapped up by glass-fiber-fabric；It is anti-
Quick-fried pressure relief plate is with a thickness of 15mm.Channel lumen cross-sectional dimension is 40cm × 40cm.The rectangular ventilation in outside is set on the outside of channel
The rectangular ventilation hole 6 in indoor is arranged in hole 8, channel inside, and size is 40cm × 40cm.The nearly indoor one in ventilating noise reduction channel 7
Face is openable, when opening handle 24, installation and maintenance active control system are housed, by this side opening.To prevent
The dust accumulation that long-term air inlet carries causes channel blockage or instrument impaired, equipped with dust-proof just effect at the rectangular ventilation hole 8 in outside
Strainer 9, to filter net air inlet air, the service life of dust-proof primary filter screen is about half a year, periodic replacement.Meanwhile it is indoor
6 top of side shape ventilation hole equipped with automation back-fire relief baffle 11, including can cover the whole baffle of ventilation hole, smoke inductor,
Automatic control switch device, when fire incident occurs in transformer room, a large amount of smog can trigger smoke inductor alarm, release
Signal pass to automatic control switch device, derailing switch is closed, then whole baffle covers all ventilation holes, prevents the intensity of a fire from logical
Air holes is stretched outward.In addition, the outermost explosion-proof relief plate in ventilating noise reduction channel 7 is acted in high pressure if transformer explodes
Under can quickly become powder, avoid explosion splash damage nearby residents personal safety, inhale gobo body 1 be also such.
Since transformer noise is mainly using 100Hz octave as the low frequency spectrum lines noise of fundamental frequency, it is easy to logical from ventilation
It is leaked in road and then influences nearby residents environment.In order to eliminate low-frequency noise in channel, in each ventilating noise reduction channel 7
A set of active control system 12 is installed, the active control system 12 includes controller 20, with reference to microphone 19, secondary sound source
21, error microphone 23 and peripheral circuit 22.Wherein, controller 20 and secondary sound source 21 are individually placed in dust shield case, reference
Windproof and dustproof set is respectively arranged with outside microphone 19 and error microphone 23.Active control system 12 is according to the first device of specific order arrangement
Part, and it is installed on channel one side: it is arranged in ventilating noise reduction channel 7 with reference to microphone 19 in face of the rectangular ventilation hole 6 in indoor
Side, error microphone 23 are arranged in the ventilating noise reduction channel 7 close to rectangular 8 side of ventilation hole in outside, controller 20
And secondary sound source 21 be arranged between reference microphone 19 and error microphone 23, wherein secondary sound source 21 and refer to microphone 19
Distance be 0.4m, controller 20 is separately connected with reference to microphone 19, error microphone 23 and secondary sound source 21.Active control system
The concrete operating principle of system 12 are as follows: transformer noise is from ventilating noise reduction channel 7 to external radiation when system is run, through reference microphone
By noise signal transmission to controller 20 after 19 acquisitions, controller 20 calculates secondary acoustic signals according to adaptive algorithm, should
Anti-noise sound field is generated by secondary sound source 21 after power amplifier drives after acoustic signals output, error microphone 23 receives simultaneously
The acoustic pressure of noise sound field and secondary sound field forms error signal after the two superposition, and error signal is input in controller 20, adaptive
Answer algorithm according to it is preset control target adjustment controller 20 weight coefficient to change secondary signal intensity include amplitude,
Frequency and phase make noise sound wave and secondary sound wave destructive interference, this process is continual to go on, until system
Tend towards stability state, final eliminating transformer low-frequency noise.Meanwhile the settable noise threshold of active control system, according to
Transformer noise situation realizes adaptive open and close.
7 section side length of ventilating noise reduction channel described in the embodiment of the present invention is 0.4m, corresponding active control system 12
Cutoff frequency is 425Hz, i.e., the transformer low frequency noise of 425Hz or less frequency range can be reduced using active control system 12.For
Line spectrum 100Hz, 200Hz, 300Hz, 400Hz of transformer noise, can be reduced to environmental background noise grade.Meanwhile ventilating noise reduction
The passive suction sound insulation control of channel cavity wall 18 is more than 30dBA for high-frequency noises sound deadening capacity more than 500Hz octave, therefore
Ventilating noise reduction channel sound deadening capacity to transformer noise containing active control system is more than 30dBA.Due to inhaling gobo body 1
Mean transmission loss also above 30dBA, therefore a kind of ventilation of indoor substation described in embodiment of the present invention sound insulation gate it is whole every
Volume can be more than 30dBA.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
- The sound insulation gate 1. a kind of indoor substation is divulged information, it is characterised in that: including inhaling gobo body (1), doorframe (2), sound absorption Module (3), ventilating noise reduction channel mounting hole (5), ventilating noise reduction channel (7) and active control system (12),The doorframe (2) is fixedly mounted on wall by built-in fitting inhales gobo body (1) to support；Connector is made with T-shaped tabletting (4) between the suction sound insulation module (3) and is screwed, constitutes and inhales gobo body (1)；Reserve ventilating noise reduction channel mounting hole (5), each ventilating noise reduction channel mounting hole in the lower part for inhaling gobo body (1) (5) a ventilating noise reduction channel (7) is embedded at, a set of active control system (12) of installation in each ventilating noise reduction channel (7).
- The sound insulation gate 2. a kind of indoor substation according to claim 1 is divulged information, it is characterised in that: the sound absorption module It (3) from the inside to the outside include punching facing aluminium sheet (13), glass sound-absorbing cotton (15), back-fire relief glass magnesium board (16) and explosion-proof relief plate (17), centre has steel structure framework (10) to support.
- The sound insulation gate 3. a kind of indoor substation according to claim 1 is divulged information, it is characterised in that: the ventilating noise reduction is logical Road (7) is cuboid cavity structure, and cavity wall (18) architecture is lightgage steel joist, and setting is outdoor on the outside of ventilating noise reduction channel (7) The rectangular ventilation hole in indoor (6) are arranged on the inside of ventilating noise reduction channel (7) in side shape ventilation hole (8), and ventilating noise reduction channel (7) are close Indoor is equipped on one side is convenient for system maintenance and the opening handle of maintenance (24), the rectangular ventilation hole in outside (8) in channel Place is equipped with the dust-proof primary filter screen (9) to filter net air inlet air, and indoor rectangular ventilation hole (6) top is equipped with automation back-fire relief Baffle (11).
- The sound insulation gate 4. a kind of indoor substation according to claim 3 is divulged information, it is characterised in that: the active control system System (12) includes controller (20), with reference to microphone (19), secondary sound source (21), error microphone (23) and peripheral circuit (22), the active control system (12) is installed on ventilating noise reduction channel (7) one side, is divulging information with reference to microphone (19) setting The rectangular ventilation hole in indoor (6) side is faced in silencers channel (7), error microphone (23) is arranged in the ventilating noise reduction channel (7) it is arranged close to the rectangular ventilation hole in outside (8) side, controller (20) and secondary sound source (21) in reference microphone (19) in Between error microphone (23), wherein secondary sound source (21) is 0.4m, controller (20) at a distance from reference microphone (19) It is separately connected with reference to microphone (19), error microphone (23) and secondary sound source (21).
- The sound insulation gate 5. a kind of indoor substation according to claim 4 is divulged information, it is characterised in that: the controller (20) It is individually placed in dust shield case with secondary sound source (21), it is anti-with reference to radix saposhnikoviae is respectively arranged with outside microphone (19) and error microphone (23) Dirt set.
- The sound insulation gate 6. a kind of indoor substation according to claim 4 is divulged information, it is characterised in that: the automation back-fire relief Baffle (11) includes the whole baffle that can cover ventilation hole, smoke inductor, automatic control switch device.
- The sound insulation gate 7. a kind of indoor substation according to claim 2 is divulged information, it is characterised in that: the sound absorption module (3) maximum secting area is not more than 1 square metre, and punching facing aluminium sheet (13) punching rate is not less than 25%；The glass is inhaled Sound cotton (15) thickness is not less than 50mm, and glass sound-absorbing cotton (15) is external to be wrapped up by glass-fiber-fabric (14)；The back-fire relief glass magnesium board (16) With a thickness of 5mm~10mm；The explosion-proof relief plate (17) is with a thickness of 10mm~15mm.
- The sound insulation gate 8. a kind of indoor substation according to claim 2 is divulged information, it is characterised in that: the ventilating noise reduction is logical Road (7) long 1.6m~2m, channel inner section side length are not more than 400mm, the rectangular ventilation of the rectangular ventilation hole in indoor (6) and outside Hole (8) side length is not more than 400mm.
- 9. a kind of indoor substation ventilation sound insulation gate, feature described in any one of -8 claims exist according to claim 1 In: distance of the bottom far from ground of ventilating noise reduction channel mounting hole (5) is not less than 30cm.
- The sound insulation gate 10. a kind of indoor substation according to claim 9 is divulged information, it is characterised in that: the sound absorbing-insulating It is sealed between wall using alternating expression sealing joint strip at the top and bottom of body (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811498260.0A CN109322599A (en) | 2018-12-08 | 2018-12-08 | A kind of indoor substation ventilation sound insulation gate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811498260.0A CN109322599A (en) | 2018-12-08 | 2018-12-08 | A kind of indoor substation ventilation sound insulation gate |
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| CN109322599A true CN109322599A (en) | 2019-02-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113437679A (en) * | 2021-05-20 | 2021-09-24 | 国网山东省电力公司淄博供电公司 | Ventilation, noise elimination and pressure relief integrated device suitable for intelligent transformer substation |
| CN114068141A (en) * | 2021-10-29 | 2022-02-18 | 国网湖南省电力有限公司 | Fire-proof explosion-venting sound insulation cover for transformer |
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| CN204139358U (en) * | 2014-09-27 | 2015-02-04 | 苏州市白云环保工程设备有限公司 | A kind of detachable one sound insulating house |
| WO2017139968A1 (en) * | 2016-02-15 | 2017-08-24 | 厦门嘉达环保建造工程有限公司 | Hyperbolic cooling tower noise-attenuating system |
| CN106786042A (en) * | 2016-12-02 | 2017-05-31 | 湖南送变电站勘察设计咨询有限公司 | A kind of indoor substation ventilating noise-elimination pressure release integration unit |
| CN106761296A (en) * | 2016-12-12 | 2017-05-31 | 南京大学 | Ventilating sound-proof door |
| CN209444187U (en) * | 2018-12-08 | 2019-09-27 | 国网湖北省电力有限公司电力科学研究院 | A kind of indoor substation ventilation sound insulation gate |
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| CN113437679A (en) * | 2021-05-20 | 2021-09-24 | 国网山东省电力公司淄博供电公司 | Ventilation, noise elimination and pressure relief integrated device suitable for intelligent transformer substation |
| CN114068141A (en) * | 2021-10-29 | 2022-02-18 | 国网湖南省电力有限公司 | Fire-proof explosion-venting sound insulation cover for transformer |
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