CN209444187U - 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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- CN209444187U CN209444187U CN201822053409.6U CN201822053409U CN209444187U CN 209444187 U CN209444187 U CN 209444187U CN 201822053409 U CN201822053409 U CN 201822053409U CN 209444187 U CN209444187 U CN 209444187U
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- 238000009423 ventilation Methods 0.000 title claims abstract description 59
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 239000004411 aluminium Substances 0.000 claims abstract description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 8
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Abstract
The utility model 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 utility model 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 utility model 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.
Utility model content
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 that low frequency spectrum lines noise, the utility model provide a kind of indoor substation ventilation sound insulation gate.
The technical solution of the utility model includes:
A kind of indoor substation is divulged information sound insulation gate, it is characterised in that: including inhale gobo body, doorframe, inhale sound insulation 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 suction sound insulation 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 for inhaling sound insulation 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 suction gobo body.
Compared with prior art, the utility model has the beneficial effects that being met 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 and make an uproar in transformer room while air inlet demand
Sound；Using modularized design, it is easily installed and disassembles and maintains maintenance, it is practical；Using Explosion-proof Design and channel automation resistance
The intensity of a fire of fiery baffle, the works fragment secondary injury and fire incident that can prevent Explosion of Transformer accident from causing is stretched outward,
With 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 by the embodiment of the utility model；
A kind of Fig. 2: indoor substation ventilation sound insulation gate side view provided by the embodiment of the utility model；
Fig. 3: suction sound insulation module the schematic diagram of the section structure provided by the embodiment of the utility model；
Fig. 4: ventilating noise reduction channel provided by the embodiment of the utility model 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, 5- ventilating noise reduction channel peace
Fill 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 structure framework, 11- automate back-fire relief baffle, 12- active control system, 13- punching facing aluminium sheet, 14- glass-fiber-fabric, 15- glass
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-
Secondary sound source, 22- peripheral circuit, 23- error microphone, 24- opening handle.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of indoor substation ventilation sound insulation described in the utility model embodiment is big
Door, including inhale sound insulation module 3, ventilating noise reduction channel 5, active control system 12, connector and affiliated facility.Inhale sound insulation module 3
The suction gobo body 1 at ventilation sound insulation gate is connected and composed by connector T-shaped tabletting 4, several ventilating noise reduction channels are reserved in lower part
Mounting hole 5 is embedded in a ventilating noise reduction channel 7 at each mounting hole, a set of active control of installation in each ventilating noise reduction channel 7
System 12.
A kind of indoor substation ventilation sound insulation gate overall size provided by the embodiment of the utility model 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.The indoor substation ventilation
Using complete modular, when installation, first installs doorframe 2 at sound insulation gate, built-in fitting is installed between doorframe and wall to fixed gate,
Then sound insulation module 3 is inhaled in sequentially installation, is made connector between suction sound insulation module 3 with T-shaped tabletting 4 and is screwed, constitutes and inhale
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 gobo 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 outer includes punching facing aluminium sheet 13, glass sound-absorbing cotton 15, back-fire relief glass magnesium board 16 and explosion-proof relief plate 17, and there is steel construction in centre
Skeleton 10 supports.The punching facing aluminium sheet 13 is with a thickness of 1mm, punching aperture 2mm, punching rate 30%；The glass is inhaled
Sound 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, between adjacent suction sound insulation module 3
Gap is filled by T-shaped tabletting 4, to reduce noise leakage, the suction gobo body that is made of suction sound insulation module 3 and T-shaped tabletting 4
1, mean transmission loss is more than 30dBA.
The transformer room roof of the utility model embodiment is equipped with centrifugal blower, and generally natural air inlet-strong-force exhaust is logical
Wind mode, required ventilation quantity about 30000m3/ h, under roof ventilator effect, indoor negative pressure makes air inlet wind speed be 4.5m/s.
As shown in Figure 1, a kind of indoor substation ventilation sound insulation gate provided by the embodiment of the utility model includes that 12 ventilating noise reductions are logical
Road 7, the rectangular ventilation hole side length in each ventilating noise reduction channel 7 are 0.4m, and area is 0.16 ㎡, i.e., the ventilation gross area is 1.92
㎡, practical ventilation quantity are 31104m3/ h can meet air-conditioning requirement.Mounting hole 5 bottom in the ventilating noise reduction channel is far from ground
0.4m can prevent rainy day ponding from diffusing in.In actual use, ventilating noise reduction channel 7 can flexibly be increased and decreased according to required ventilation quantity
Number.
As shown in Fig. 2, 1 lower part of gobo body, overall size are inhaled in the insertion of ventilating noise reduction channel 7 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 light steel dragon
Bone, cavity wall inside are porous aluminium sheet, are explosion-proof relief plate, internal filling glass acoustical cotton on the outside of cavity wall.Wherein porous aluminum plate thickness
Degree is 1mm, aperture 2mm, punching rate 25%；Glass sound-absorbing cotton bulk density is 48Kg/m3, with a thickness of 50mm, by glass cloth bag
It wraps up in；Explosion-proof relief plate thickness is 15mm.Channel lumen cross-sectional dimension is 40cm × 40cm.Setting outside is rectangular on the outside of channel
The rectangular ventilation hole 6 in indoor is arranged in ventilation hole 8, channel inside, and size is 40cm × 40cm.Ventilating noise reduction channel 7 is close indoor
Side is openable on one side, when opening handle 24, installation and maintenance active control system are housed, by this side opening.For
Prevent the dust accumulation for entering the wind carrying for a long time from causing channel blockage or instrument impaired, equipped with dust-proof at the rectangular ventilation hole 8 in outside
Primary filter screen 9, to filter net air inlet air, the service life of dust-proof primary filter screen is about half a year, periodic replacement.Meanwhile
Rectangular 6 top of ventilation hole in indoor is equipped with automation back-fire relief baffle 11, whole baffle, smog sense including that can cover ventilation hole
Device, automatic control switch device are answered, when fire incident occurs in transformer room, a large amount of smog can trigger smoke inductor report
Alert, the signal of release passes to automatic control switch device, and derailing switch is closed, then whole baffle covers all ventilation holes, prevents
The intensity of a fire is stretched outward from ventilation hole.In addition, the outermost explosion-proof relief plate in ventilating noise reduction channel 7 exists if transformer explodes
Powder can be quickly become under high pressure effect, avoids the personal safety of explosion splash damage nearby residents, inhaling gobo body 1 is also
So.
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 with refer to microphone
19 distance is 0.4m, and controller 20 is separately connected with reference to microphone 19, error microphone 23 and secondary sound source 21.Actively control
The concrete operating principle of system 12 processed are as follows: transformer noise is passed from ventilating noise reduction channel 7 to external radiation through reference when system is run
By noise signal transmission to controller 20 after the acquisition of sound device 19, controller 20 calculates secondary sound wave letter according to adaptive algorithm
Number, anti-noise sound field is generated by secondary sound source 21 after power amplifier drives after acoustic signals output, error microphone 23 is same
When receive noise sound field and secondary sound field acoustic pressure, the two superposition after form error signal, error signal is input to controller 20
In, adaptive algorithm is according to the weight coefficient of preset control target adjustment controller 20 to change secondary signal intensity packet
Amplitude, frequency and phase are included, noise sound wave and secondary sound wave destructive interference are made, this process is continual to go on,
Until system tends towards stability state, final eliminating transformer low-frequency noise.Meanwhile the settable noise threshold of active control system
Value realizes adaptive open and close according to transformer noise situation.
7 section side length of ventilating noise reduction channel described in the utility model embodiment 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, environmental background noise grade can be reduced to.Meanwhile it divulging information
The passive suction sound insulation control of silencers 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
The mean transmission loss of body 1 is also above 30dBA, therefore a kind of indoor substation ventilation sound insulation gate described in the utility model embodiment
Whole oise insulation factor can be more than 30dBA.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
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), inhaling sound insulation 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 suction sound insulation 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 suction sound insulation 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 suction gobo It is sealed between wall using alternating expression sealing joint strip at the top and bottom of body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822053409.6U CN209444187U (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 |
|---|---|---|---|
| CN201822053409.6U CN209444187U (en) | 2018-12-08 | 2018-12-08 | A kind of indoor substation ventilation sound insulation gate |
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| Publication Number | Publication Date |
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| CN209444187U true CN209444187U (en) | 2019-09-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322599A (en) * | 2018-12-08 | 2019-02-12 | 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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2018
- 2018-12-08 CN CN201822053409.6U patent/CN209444187U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322599A (en) * | 2018-12-08 | 2019-02-12 | 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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