CN204164042U - A kind of air exhausting soundproofing elbow for 35kV transformer chamber - Google Patents

A kind of air exhausting soundproofing elbow for 35kV transformer chamber Download PDF

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Publication number
CN204164042U
CN204164042U CN201420574189.0U CN201420574189U CN204164042U CN 204164042 U CN204164042 U CN 204164042U CN 201420574189 U CN201420574189 U CN 201420574189U CN 204164042 U CN204164042 U CN 204164042U
Authority
CN
China
Prior art keywords
elbow
air exhausting
exhaust outlet
shell
transformer chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420574189.0U
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Chinese (zh)
Inventor
宗明
李明
陈锦栋
黄维华
王骅
朱钦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI ELECTROPHYSICS COLLECTIVE ASSET MANAGEMENT CO Ltd
State Grid Shanghai Electric Power Co Ltd
Original Assignee
SHANGHAI ELECTROPHYSICS COLLECTIVE ASSET MANAGEMENT CO Ltd
State Grid Shanghai Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI ELECTROPHYSICS COLLECTIVE ASSET MANAGEMENT CO Ltd, State Grid Shanghai Electric Power Co Ltd filed Critical SHANGHAI ELECTROPHYSICS COLLECTIVE ASSET MANAGEMENT CO Ltd
Priority to CN201420574189.0U priority Critical patent/CN204164042U/en
Application granted granted Critical
Publication of CN204164042U publication Critical patent/CN204164042U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of air exhausting soundproofing elbow for 35kV transformer chamber, be installed on the exhaust outlet place of the wall type axial flow blower on 35kV transformer chamber exterior wall, comprise shell and be located at the ventilation cavity in this shell, ventilation cavity is respectively equipped with wind inlet and exhaust outlet on described shell, the center line of ventilation cavity wind inlet overlaps with the center line of locular wall formula axial flow blower, also comprise and be arranged on shell and be positioned at the Stainless Steel Cloth at exhaust outlet place and be arranged at ventilation cavity center place and the anechoic sheet extended along its bearing of trend, the wind inlet end of anechoic sheet is provided with conical flow guiding part, and be provided with gap between the top of this conical flow guiding part and the residing plane of wind inlet, the other end of anechoic sheet and the planes align residing for exhaust outlet.The overall sound deadening capacity of the utility model air exhausting soundproofing elbow is higher, and comparatively prior art can improve more than 3dB (A), and has better soundproof effect at the crest frequency place of 35kV transformer noise.

Description

A kind of air exhausting soundproofing elbow for 35kV transformer chamber
Technical field
The utility model relates to field of environment engineering technology, particularly relates to a kind of air exhausting soundproofing elbow for 35kV transformer chamber.
Background technique
Along with the quickening of expanding economy and urbanization process, the power load in city constantly increases, and the electric substation in city also gets more and more, and the 35kV electric substation especially directly to customer power supply moves into residential belt, office area more and more.Because city land used is nervous, add the problem of noise pollution of electric substation, the 35kV electric substation therefore in city is mostly indoor substation, and main transformer is arranged in 35kV transformer chamber.For 35kV indoor substation, although the noise of topmost noise source in electric substation---main transformer substantially by enclosure in 35kV transformer chamber, but the noise of main transformer still can produce propagation effect by the exhaust port External Environment of transformer chamber, the noise of adding main transformer is significant arrowband low frequency characteristic, it presents sound pressure level peak value at 100Hz, 200Hz and 400Hz place, its all-bottom sound is affected more obvious.In addition, the air bells exhauster of transformer chamber's ventilation and heat self also can produce noise, and its noise also can produce propagation effect along with air draft External Environment.
Most of 35kV indoor substation in current city is near residential building, these noises can inevitably have an impact to the resident of periphery, easy generation noise transmission affects the environment contradiction caused, to become in network system a main environmental pollution problem, be badly in need of carrying out noise elimination process to the exhaust port of 35kV transformer chamber.
The effective ways that exhaust port carries out noise elimination process are on exhaust port, install air exhausting soundproofing elbow additional.The bend muffler of current ventilation system is generally selected according to national standard drawings " ZP type strip-type silencer ZW type noise elimination bend pipe ", the sound deadening capacity of ZW type noise elimination bend pipe is about 10dB (A), but ZW type noise elimination bend pipe is on the low side at the sound deadening capacity at transformer noise crest frequency place, and its total sound deadening capacity is not good enough yet.In addition, what the air bells exhauster of indoor substation adopted is wall type axial-flow fan, is directly be enclosed within the exhaust outlet of air bells exhauster, presses close to air bells exhauster when bend muffler is installed, and ZW type noise elimination bend pipe is only applicable to be arranged in air pipeline system, certain distance need be separated with air bells exhauster.In sum, ZW type noise elimination bend pipe is not suitable for the air exhausting soundproofing of 35kV transformer chamber.
Summary of the invention
The purpose of this utility model, providing a kind of air exhausting soundproofing elbow for 35kV transformer chamber exactly, having good soundproof effect in order to solve the problem.
The purpose of this utility model is achieved in that
A kind of air exhausting soundproofing elbow for 35kV transformer chamber of the present utility model, described air exhausting soundproofing elbow is installed on the exhaust outlet place of the wall type axial flow blower on 35kV transformer chamber exterior wall, this air exhausting soundproofing elbow comprises shell and is located at the ventilation cavity in this shell, described ventilation cavity is respectively equipped with wind inlet and exhaust outlet on described shell, the center line of described ventilation cavity wind inlet overlaps with the center line of described locular wall formula axial flow blower, described air exhausting soundproofing elbow also comprise be arranged on described shell and be positioned at described exhaust outlet place Stainless Steel Cloth and be arranged at described ventilation cavity center place and the anechoic sheet extended along its bearing of trend, the wind inlet end of described anechoic sheet is provided with conical flow guiding part, and be provided with gap between the top of this conical flow guiding part and the residing plane of described wind inlet, the other end of described anechoic sheet and the planes align residing for described exhaust outlet.
Above-mentioned a kind of air exhausting soundproofing elbow for 35kV transformer chamber, wherein, described shell comprises the perforation galvanized steel plain sheet/Pierced Aluminum Plank, glass fibre cloth, centrifugally glass-wool plate and the galvanized steel plain sheet that set gradually from inside to outside, is provided with Lightgage Steel Joist in described centrifugally glass-wool plate.
Above-mentioned a kind of air exhausting soundproofing elbow for 35kV transformer chamber, wherein, described anechoic sheet comprises the perforation galvanized steel plain sheet/Pierced Aluminum Plank, glass fibre cloth, centrifugally glass-wool plate, glass fibre cloth and the perforation galvanized steel plain sheet/Pierced Aluminum Plank that set gradually, is provided with Lightgage Steel Joist in described centrifugally glass-wool plate.
Above-mentioned a kind of air exhausting soundproofing elbow for 35kV transformer chamber, wherein, the hole pitch of described Stainless Steel Cloth is 10mm × 10mm.
Compared with prior art, overall sound deadening capacity is higher for the utility model, can improve more than 3dB (A), and has better soundproof effect at the crest frequency place of 35kV transformer noise.During installation, the wind inlet of the utility model air exhausting soundproofing elbow is directly enclosed within the exhaust outlet of 35kV transformer chamber wall type axial flow blower, has the feature of compact structure, easy for installation, low cost of manufacture, is particularly useful for the air exhausting soundproofing of 35kV transformer chamber.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic cross-section of the utility model housing;
Fig. 3 is the schematic cross-section of anechoic sheet in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to Fig. 1, there is shown a kind of air exhausting soundproofing elbow for 35kV transformer chamber of the utility model, air exhausting soundproofing elbow is installed on the exhaust outlet place of the wall type axial flow blower 5 on 35kV transformer chamber exterior wall 6, the ventilation cavity 7 that the utility model air exhausting soundproofing elbow comprises shell 1 and is located in this shell 1, ventilation cavity 7 is respectively equipped with wind inlet 71 and exhaust outlet 72 on shell 1, the center line of ventilation cavity 7 wind inlet 71 overlaps with the center line of wall type axial flow blower 5, the utility model air exhausting soundproofing elbow also comprises and is arranged on shell 1 and is positioned at the Stainless Steel Cloth 4 at exhaust outlet 72 place and is arranged at ventilation cavity 7 center and the anechoic sheet 2 extended along its bearing of trend, the wind inlet end of anechoic sheet 2 is provided with conical flow guiding part 3, and be provided with gap between the top of this conical flow guiding part 3 and the residing plane of wind inlet 71, the other end of anechoic sheet 2 and the planes align residing for exhaust outlet 72, the hole pitch of Stainless Steel Cloth 4 is 10mm × 10mm.
Refer to Fig. 2, shell 1 comprise set gradually from inside to outside first perforation galvanized steel plain sheet/Pierced Aluminum Plank 15, first glass fibre cloth 14, first centrifugally glass-wool plate 13 and galvanized steel plain sheet 11, first centrifugally glass-wool plate 13 in be provided with the first Lightgage Steel Joist 12.
Refer to Fig. 3, anechoic sheet 2 comprises in the second perforation galvanized steel plain sheet/Pierced Aluminum Plank 21, second glass fibre cloth 23, second centrifugally glass-wool plate 24, second glass fibre cloth 23 and second perforation galvanized steel plain sheet/Pierced Aluminum Plank 21, second centrifugally glass-wool plate 24 that set gradually and is provided with the second Lightgage Steel Joist 22.
The utility model air exhausting soundproofing elbow is 90 ° of elbows, is resistive chip bend muffler.This bend muffler has better soundproof effect at the crest frequency place of 35kV transformer noise, and overall sound deadening capacity comparatively ZW type noise elimination bend pipe improve more than 3dB (A).In addition, this bend muffler is provided with conical flow guiding part 3 at wind inlet 71 end, and air-flow can be made to enter bend muffler reposefully, can directly be sleeved on the exhaust outlet of wall type axial flow blower 5.In sum, the utility model air exhausting soundproofing elbow is particularly useful for the air exhausting soundproofing of 35kV transformer chamber.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, when not departing from spirit and scope of the present utility model, various conversion or modification can also be made, therefore all equivalent technological schemes also should belong to category of the present utility model, should be limited by each claim.

Claims (4)

1. the air exhausting soundproofing elbow for 35kV transformer chamber, described air exhausting soundproofing elbow is installed on the exhaust outlet place of the wall type axial flow blower on 35kV transformer chamber exterior wall, this air exhausting soundproofing elbow comprises shell and is located at the ventilation cavity in this shell, described ventilation cavity is respectively equipped with wind inlet and exhaust outlet on described shell, it is characterized in that, the center line of described ventilation cavity wind inlet overlaps with the center line of described locular wall formula axial flow blower, described air exhausting soundproofing elbow also comprise be arranged on described shell and be positioned at described exhaust outlet place Stainless Steel Cloth and be arranged at described ventilation cavity center place and the anechoic sheet extended along its bearing of trend, the wind inlet end of described anechoic sheet is provided with conical flow guiding part, and be provided with gap between the top of this conical flow guiding part and the residing plane of described wind inlet, the other end of described anechoic sheet and the planes align residing for described exhaust outlet.
2. a kind of air exhausting soundproofing elbow for 35kV transformer chamber as claimed in claim 1, it is characterized in that, described shell comprises the perforation galvanized steel plain sheet/Pierced Aluminum Plank, glass fibre cloth, centrifugally glass-wool plate and the galvanized steel plain sheet that set gradually from inside to outside, is provided with Lightgage Steel Joist in described centrifugally glass-wool plate.
3. a kind of air exhausting soundproofing elbow for 35kV transformer chamber as claimed in claim 1, it is characterized in that, described anechoic sheet comprises the perforation galvanized steel plain sheet/Pierced Aluminum Plank, glass fibre cloth, centrifugally glass-wool plate, glass fibre cloth and the perforation galvanized steel plain sheet/Pierced Aluminum Plank that set gradually, is provided with Lightgage Steel Joist in described centrifugally glass-wool plate.
4. a kind of air exhausting soundproofing elbow for 35kV transformer chamber as claimed in claim 1, it is characterized in that, the hole pitch of described Stainless Steel Cloth is 10mm × 10mm.
CN201420574189.0U 2014-09-30 2014-09-30 A kind of air exhausting soundproofing elbow for 35kV transformer chamber Expired - Fee Related CN204164042U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420574189.0U CN204164042U (en) 2014-09-30 2014-09-30 A kind of air exhausting soundproofing elbow for 35kV transformer chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420574189.0U CN204164042U (en) 2014-09-30 2014-09-30 A kind of air exhausting soundproofing elbow for 35kV transformer chamber

Publications (1)

Publication Number Publication Date
CN204164042U true CN204164042U (en) 2015-02-18

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108194395A (en) * 2018-02-12 2018-06-22 山西巨龙风机有限公司 A kind of axis stream booster elbow intake silencer
CN111207114A (en) * 2020-03-13 2020-05-29 空气动力学国家重点实验室 Exhaust expander structure for reducing pneumatic noise of fan
CN111928689A (en) * 2020-07-23 2020-11-13 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) Printed circuit board type heat exchanger with noise elimination function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108194395A (en) * 2018-02-12 2018-06-22 山西巨龙风机有限公司 A kind of axis stream booster elbow intake silencer
CN111207114A (en) * 2020-03-13 2020-05-29 空气动力学国家重点实验室 Exhaust expander structure for reducing pneumatic noise of fan
CN111928689A (en) * 2020-07-23 2020-11-13 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) Printed circuit board type heat exchanger with noise elimination function
CN111928689B (en) * 2020-07-23 2021-12-03 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) Printed circuit board type heat exchanger with noise elimination function

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150218

Termination date: 20150930

EXPY Termination of patent right or utility model