CN207053003U - A kind of ventilation silencer of main transformer of transformer substation room - Google Patents
A kind of ventilation silencer of main transformer of transformer substation room Download PDFInfo
- Publication number
- CN207053003U CN207053003U CN201720994100.XU CN201720994100U CN207053003U CN 207053003 U CN207053003 U CN 207053003U CN 201720994100 U CN201720994100 U CN 201720994100U CN 207053003 U CN207053003 U CN 207053003U
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- sound absorption
- plate body
- absorption plate
- shell
- board group
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Abstract
The utility model discloses a kind of ventilation silencer of main transformer of transformer substation room, it is connected to the outside of shutter on main transformer room wall, including shell and the acoustic board group being arranged in shell, acoustic board group includes the sound absorption plate body that polylith is arranged in parallel along air flow direction, sound absorption plate body has sound-absorbing material layer, the inner chamber of shell is separated into some gas channels by sound absorption plate body, and each gas channel passes through sound-absorbing material noise reduction.The air outlet of shell upward, is provided with filter screen, rain cover is provided with above air outlet at air outlet.The arrangement of sound absorption plate body, considerably increases the length of silencer and the girth in break-make face, greatly improves noise reduction.Sound absorption plate body is arranged in parallel along air flow direction, so the arrangement of sound absorption plate body does not influence the ventilation in main transformer room in shell.In order that this silencer be applicable to shutter ground clearance it is near when connection installation, air outlet is upwardly disposed, so expand the scope of application.
Description
Technical field
The utility model belongs to noise control technique field, and in particular to a kind of main transformer of transformer substation room is by within the walls to wall
Outer ventilating noise silencer.
Background technology
Noise pollution is listed in the pollution greatly of the whole world three together with water pollution, atmosphere pollution.Noise pollution is good for people's body and mind
The harm of health is increasingly recognized and paid close attention to by people, and in densely populated, economically developed large- and-medium size cities, noise pollution is tighter
Weight, acoustic environment just turn into the important indicator that people weigh environmental quality.
With the fast development of economy, urbanization process quickly propels, and transformer station's noise emission excessive problem becomes increasingly conspicuous.
In face of the exceeded complaint that disturbs residents of increasingly strict environmental standard and ever-increasing noise, to the improvement work of the exceeded transformer station of noise
Make extremely urgent.
When substation transformer is run, transformer and its attached cooling device can produce larger noise, to ring around
Border produces certain influence.During main transformer room noise abatement, it is necessary to while consider its draught effect.Main transformer pressure at present
Device room is largely provided with ventilation shutter, but the noise reduction very little of shutter, and it is exceeded to easily cause transformer station's noise emission.This
Outside, shutter lower end is nearer apart from ground, generally less than 1 meter, traditional ventilation silencer being open straight down, is not easy to pacify
Dress arrangement.
Utility model content
The purpose of this utility model is that providing a kind of acoustical behavior and aerodynamic quality obtains well balanced ventilation
Silencer, under the premise of the air-conditioning requirement of main transformer room is met, solve because main transformer room ventilation shutter leakage sound causes
Noise emission excessive problem.
The ventilation silencer of this main transformer of transformer substation room provided by the utility model, is connected to main transformer room wall
The outside of upper shutter, including shell and the acoustic board group that is arranged in shell, acoustic board group are put down including polylith along air flow direction
The sound absorption plate body of row arrangement, sound absorption plate body have sound-absorbing material layer, and the inner chamber of shell is separated into some gas channels by sound absorption plate body,
Each gas channel passes through sound-absorbing material noise reduction；The air outlet of shell upward, is provided with filter screen at air outlet, air outlet it is upper
Side is provided with rain cover.
In a kind of embodiment of above-mentioned technical proposal, the shell is L-type housing, including be connected with the shutter
The shape of cross section of horizontal segment and the vertical section of horizontal segment outer end, horizontal segment and vertical section is rectangle.
In a kind of embodiment of above-mentioned technical proposal, the acoustic board group includes I grade of acoustic board group and II grade of acoustic board
Group, I grade of acoustic board group are installed in the horizontal segment, and II grade of acoustic board group is installed in the vertical section, two-stage acoustic board group
Arranged respectively along horizontal segment and the length direction of vertical section.
In a kind of embodiment of above-mentioned technical proposal, I grade of acoustic board group and II grade of acoustic board group are that polylith is put down
The sound absorption plate body of row arrangement, every piece of sound absorption plate body include galvanized steel plain sheet, super glass wool and microperforated panel, galvanized steel plain sheet
Both sides attach super glass wool, and microperforated panel is set on the outside of super glass wool.
In a kind of embodiment of above-mentioned technical proposal, the sound absorption plate body includes corrugated plating and flat board, the level
One flat plate is respectively arranged on the short transverse median plane of section and vertical section, the both sides of flat board are arranged symmetrically corrugated plating.
In a kind of embodiment of above-mentioned technical proposal, the inwall of the horizontal segment and vertical section is laid with sound absorption damping material
The bed of material, the shape for the Damping material layer that absorbs sound are consistent with the shape of the corrugated plating.
The utility model is connected to the outside of shutter on main transformer room wall, and sound-absorbing material layer is provided with shell
Sound absorption plate body, sound absorption plate body be arranged in parallel along air flow direction, the inner chamber of shell is separated into some gas channels, each air-flow
Passage passes through the plate body noise reduction that absorbs sound.So equivalent to the length and the girth in break-make face for adding silencer, noise reduction is more
It is good.Because sound absorption plate body is arranged in parallel along air flow direction, so the arrangement of sound absorption plate body is not influenceed in main transformer room in shell
Ventilation.In order that this silencer be applicable to shutter ground clearance it is near when connection installation, air outlet is upwardly disposed, this
Sample expands the scope of application.In order to be further ensured that noise reduction, the shelling machine l-shaped of this silencer can according to circumstances exist
Sound absorption plate body is set respectively in its horizontal segment and/or vertical section, it is cost-effective while avoiding performance surplus.Experiment proves that water
When flat section and vertical section are respectively mounted sound absorption plate body, the noise reduction of this silencer is up to 25~30dB.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the mplifying structure schematic diagram of sound absorption plate body in Fig. 1.
Sequence number in Fig. 1：1st, shutter；2nd, shell；3rd, I grade of acoustic board group；4th, II grade of acoustic board group；5th, filter screen；6th, rain-proof
Cover.
Sequence number in Fig. 2：11st, galvanized steel plain sheet；12nd, super glass wool；13rd, microperforated panel.
Embodiment
As shown in figure 1, the ventilation silencer of this main transformer of transformer substation room disclosed in the present embodiment, including shell 2, I
3, II grades of acoustic board groups 4 of level acoustic board group, filter screen 5 and rain cover 6.Shell 1 is shaped as L-type, including shape of cross section is
The horizontal segment and vertical section of rectangle, vertical section is upwardly disposed, and I grade of suction is disposed with along airflow direction respectively in horizontal segment and vertical section
Sound plate group 3 and II grade of acoustic board group 4.
As shown in figure 1, I grade of acoustic board group 3 and II grade of acoustic board group 4 include two kinds of sound absorptions of corrugated plating BWB and flat board PB
Plate body.One flat plate is installed, one piece of installation is flat at the width median plane of vertical section at the short transverse center line face of horizontal segment
Plate, the both sides of flat board are arranged symmetrically four pieces of corrugated platings, that is to say, that the two-stage acoustic board group of the present embodiment includes one flat plate
With four pieces of corrugated platings.Inwall of the both sides of flat board and corrugated plating with shell is connected.It is seen also in fig. l that horizontal segment
The sound absorption damping material consistent with corrugated plate shape is laid with the inwall of vertical section.
As shown in figure 1, the horizontal segment end of shell is connected as a single entity with the shutter on main transformer room wall, filter screen installation
In the upper end of housing vertical section.Rain cover is additionally provided with above vertical section.The setting of filter screen can avoid the debris in the external world from entering
Ventilation effect is influenceed in shell, the setting of rain cover can avoid rainwater from entering in shell.
As shown in Fig. 2 two kinds of sound absorption plate bodys of corrugated plating and flat board are following structure：Middle galvanized steel plain sheet, in galvanized steel
The both sides of plate attach super glass wool as sound-absorbing material layer, set microperforated panel again on the outside of super glass wool.
Understand that the noise reduction process of the present embodiment is as follows with reference to Fig. 1 and Fig. 2：Noise enters ventilation silencer through shutter, makes an uproar
Sound is with the plate body impact several times that absorb sound in six gas channels being separated into, and in collision process, a part of acoustic energy is constantly inhaled
The microperforated panel of sound plate body is weakened, and a part of acoustic energy is absorbed by the super glass wool set by layer in acoustic board body.Noise
Discharged after two-stage acoustic board group noise reduction process from outlet.
Because each acoustic board is arranged along airflow direction, so considerably increasing the length and passage section of noise elimination noise reduction
Girth, noise reduction is greatly improved；Vertical section is upwardly disposed, and in-site installation is convenient, and applied widely, application prospect is wide
It is wealthy.
Whether need installation sound absorption plate body to determine as needed in vertical section, to meet that discharge is defined, avoid performance mistake
It is surplus.
Claims (6)
1. a kind of ventilation silencer of main transformer of transformer substation room, the outside of shutter on main transformer room wall is connected to, its
It is characterised by：It includes shell and the acoustic board group being arranged in shell, and acoustic board group includes polylith along the parallel cloth of air flow direction
The sound absorption plate body put, sound absorption plate body have sound-absorbing material layer, and the inner chamber of shell is separated into some gas channels by sound absorption plate body, each
Gas channel passes through sound-absorbing material noise reduction；The air outlet of shell upward, is provided with filter screen, set above air outlet at air outlet
It is equipped with rain cover.
2. the ventilation silencer of main transformer of transformer substation room according to claim 1, it is characterised in that：The shell is L
Shell body, including the horizontal segment and the vertical section of horizontal segment outer end being connected with the shutter, horizontal segment and vertical section it is transversal
Face is shaped as rectangle.
3. the ventilation silencer of main transformer of transformer substation room according to claim 2, it is characterised in that：The acoustic board group
Including I grade of acoustic board group and II grade of acoustic board group, I grade of acoustic board group is installed in the horizontal segment, II grade of acoustic board group installation
In in the vertical section, two-stage acoustic board group is arranged along horizontal segment and the length direction of vertical section respectively.
4. the ventilation silencer of main transformer of transformer substation room according to claim 3, it is characterised in that：I grade of sound absorption
Plate group and II grade of acoustic board group include the sound absorption plate body of polylith parallel arrangement, every piece of sound absorption plate body include galvanized steel plain sheet,
Super glass wool and microperforated panel, the both sides of galvanized steel plain sheet attach super glass wool as sound-absorbing material layer, super glass wool
Outside sets microperforated panel.
5. the ventilation silencer of main transformer of transformer substation room according to claim 4, it is characterised in that：The sound absorption plate body
Including corrugated plating and flat board, one flat plate, the width side of the vertical section are arranged on the short transverse median plane of the horizontal segment
Arrange one flat plate on to median plane, the both sides of horizontal segment and vertical section middle plateform are arranged symmetrically corrugated plating.
6. the ventilation silencer of main transformer of transformer substation room according to claim 5, it is characterised in that：The horizontal segment and
The inwall of vertical section is laid with sound absorption Damping material layer, and the shape for the Damping material layer that absorbs sound is consistent with the shape of the corrugated plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720994100.XU CN207053003U (en) | 2017-08-10 | 2017-08-10 | A kind of ventilation silencer of main transformer of transformer substation room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720994100.XU CN207053003U (en) | 2017-08-10 | 2017-08-10 | A kind of ventilation silencer of main transformer of transformer substation room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207053003U true CN207053003U (en) | 2018-02-27 |
Family
ID=61499657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720994100.XU Active CN207053003U (en) | 2017-08-10 | 2017-08-10 | A kind of ventilation silencer of main transformer of transformer substation room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207053003U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606170A (en) * | 2021-08-20 | 2021-11-05 | 国网湖南省电力有限公司 | Indoor transformer substation side wall fan noise reduction device |
| CN113669303A (en) * | 2021-08-20 | 2021-11-19 | 国网湖南省电力有限公司 | Indoor transformer substation roof fan noise reduction device |
-
2017
- 2017-08-10 CN CN201720994100.XU patent/CN207053003U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606170A (en) * | 2021-08-20 | 2021-11-05 | 国网湖南省电力有限公司 | Indoor transformer substation side wall fan noise reduction device |
| CN113669303A (en) * | 2021-08-20 | 2021-11-19 | 国网湖南省电力有限公司 | Indoor transformer substation roof fan noise reduction device |
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