CN205565449U - Transformer station owner becomes variable frequency speed governing(VFSG) ventilation system of room - Google Patents
Transformer station owner becomes variable frequency speed governing(VFSG) ventilation system of room Download PDFInfo
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- CN205565449U CN205565449U CN201620349248.3U CN201620349248U CN205565449U CN 205565449 U CN205565449 U CN 205565449U CN 201620349248 U CN201620349248 U CN 201620349248U CN 205565449 U CN205565449 U CN 205565449U
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Abstract
The utility model discloses a transformer station owner becomes variable frequency speed governing(VFSG) ventilation system of room, including the cabinet type centrifugal fan of low noise, the cabinet type centrifugal fan's of low noise air intake connection has the one or seven ten degree centigrade of smoke protection fire prevention valve, the air intake connection of the one or seven ten degree centigrade of smoke protection fire prevention valve has the air -supply line, the air intake of air -supply line becomes the room with the transformer station owner and is connected, the cabinet type centrifugal fan's of low noise air outlet is connected with the tuber pipe check valve, the air outlet of tuber pipe check valve is connected with the two or seven ten degree centigrade of smoke protection fire prevention valve, the air outlet of the two or seven ten degree centigrade of smoke protection fire prevention valve is connected with out the tuber pipe, the air outlet that goes out the tuber pipe is connected with rectangle microperforated panel complex muffler. The utility model discloses effectively reduced the noise that the transformer station owner becomes the room, reduced the transformer station owner and become the influence of the noise of room to all ring edge borders.
Description
Technical field
This utility model relates to a kind of ventilating system, the frequency control ventilating system of a kind of substation transformer chamber.
Background technology
The noise produced in substation transformer chamber ventilating system running is one of main source of transformer station's noise.In recent years, Guangzhou power supply administration is classified as noisiness size as one of main items for acceptance of transformer station, and the noise control more strict requirements that propose to substation transformer chamber ventilating system, therefore take effective noise reduction measure to seem extremely the most urgent main transformer ventilating system.
At present, the conventional substation of the major part indoor layout of main transformer, its main transformer ventilating system still uses wall embedded type axial flow blower as main ventilation installation, by to the investigation of practical situations and the induction and conclusion of substation inspection personnel's operating experience, above-mentioned transformer chamber ventilating system is deposited and is primarily present problems with: 1. overall noise is too big, is extremely difficult to corresponding standard；2. being not provided with any noise elimination device at fan outlet, surrounding enviroment are caused long-term creating disturbances to by the noise produced during fan operation.
Utility model content
For solving the problems referred to above, the purpose of this utility model is to provide the frequency control ventilating system of a kind of substation transformer chamber.
The invention for solving the technical problem be the technical scheme is that the frequency control ventilating system of a kind of substation transformer chamber, including low-noise cabinet type centrifugal blower, the air inlet of low-noise cabinet type centrifugal blower connects the one or seven ten degree Celsius of smoke-and fire-preventing valve, the air inlet of the one or seven ten degree Celsius of smoke-and fire-preventing valve connects blast pipe, the air inlet of blast pipe is connected with substation transformer chamber, the air outlet of low-noise cabinet type centrifugal blower connects air pipe check valve, the air outlet of air pipe check valve connects the two or seven ten degree Celsius of smoke-and fire-preventing valve, the air outlet of the two or seven ten degree Celsius of smoke-and fire-preventing valve connects discharge pipe, the air outlet of discharge pipe connects rectangle microperforated panel complex muffler.Air pipe check valve can be effectively ensured the one-way flow of wind direction, one or seven ten degree Celsius of smoke-and fire-preventing valve and the two or seven ten degree Celsius of smoke-and fire-preventing valve can strengthen system emergency capability in case of emergency, the two arranges and all greatly strengthen practicality of the present utility model, popularization the most of the present utility model.
Further, it is provided with noise elimination ventilating blind at the air outlet of described rectangle microperforated panel complex muffler.This utility model is provided with noise elimination ventilating blind at the air outlet of rectangle microperforated panel complex muffler, can reduce the noise at air outlet further, effectively prevents the noise interference to surrounding enviroment.
Further, being provided with muffler bracket, described rectangle microperforated panel complex muffler is installed on muffler bracket.Rectangle microperforated panel complex muffler is installed on muffler bracket by this utility model, so can effectively weaken the vibration of rectangle microperforated panel complex muffler, be greatly reinforced job stability of the present utility model.
Further, including shearing rubber damper, described shearing rubber damper being provided with damping spring combined vibration-damper, described low-noise cabinet type centrifugal blower is installed on damping spring combined vibration-damper.This utility model includes shearing rubber damper, and it is provided with damping spring combined vibration-damper shearing on rubber damper, low-noise cabinet type centrifugal blower is installed on damping spring combined vibration-damper, so can effectively weaken the vibration of low-noise cabinet type centrifugal blower, be greatly reinforced job stability of the present utility model；Described low-noise cabinet type centrifugal blower is screwed on damping spring combined vibration-damper, and fixed form is simple, good fixing effect, it is simple to installation and removal.
Further, including the installing hole for being installed into airduct and discharge pipe, the plugged zone for increasing air-tightness and firmly installing property between blast pipe and discharge pipe and installing hole, it is provided with.This utility model includes the installing hole for being installed into airduct and discharge pipe, and between blast pipe and discharge pipe and installing hole, it is provided with the plugged zone for increasing air-tightness and firmly installing property, plugged zone of the present utility model is made up of cement layer, bitumen layer and fire prevention mud layer three-layer-material, not only good airproof performance, fastness is high but also has fire-proof function, substantially increases performance of the present utility model.
Further, the air inlet of described blast pipe is provided with rustless steel fly net.This utility model is provided with rustless steel fly net in the air inlet of blast pipe, the bore hole size of rustless steel fly net of the present utility model is less than 6mm*6mm, can effectively prevent insecticide from entering blast pipe, substantially increase job stability of the present utility model, effectively reduce fault rate of the present utility model.
The beneficial effects of the utility model are: this utility model is the frequency control ventilating system of a kind of substation transformer chamber, blower fan of the present utility model uses low-noise cabinet type centrifugal blower, compared with the wall embedded type axial flow blower that conventional substation transformer chamber uses, under conditions of equivalent blast with air quantity, the rotating speed of blower fan is lower with noise figure；This utility model arranges rectangle microperforated panel composite muffler at fan outlet, reduces transformer station's noise emission value to surrounding enviroment, effectively reduce the noise impact on surrounding enviroment at source.
Accompanying drawing explanation
The utility model is described in further detail with example below in conjunction with the accompanying drawings.
Fig. 1 is site plan of the present utility model；
Fig. 2 is profile of the present utility model.
Detailed description of the invention
Fig. 1 is site plan of the present utility model, as shown in Figure 1, a kind of frequency control ventilating system of substation transformer chamber, including low-noise cabinet type centrifugal blower 1, the air inlet of low-noise cabinet type centrifugal blower 1 connects the one or seven ten degree Celsius of smoke-and fire-preventing valve 2, the air inlet of the one or seven ten degree Celsius of smoke-and fire-preventing valve 2 connects blast pipe 3, the air inlet of blast pipe 3 is connected with substation transformer chamber, the air outlet of low-noise cabinet type centrifugal blower 1 connects air pipe check valve 4, the air outlet of air pipe check valve 4 connects the two or seven ten degree Celsius of smoke-and fire-preventing valve 5, the air outlet of the two or seven ten degree Celsius of smoke-and fire-preventing valve 5 connects discharge pipe 6, the air outlet of discharge pipe 6 connects rectangle microperforated panel complex muffler 7.Air pipe check valve 4 can be effectively ensured the one-way flow of wind direction, one or seven ten degree Celsius of smoke-and fire-preventing valve 2 and the two or seven ten degree Celsius of smoke-and fire-preventing valve 5 can strengthen system emergency capability in case of emergency, the two arranges and all greatly strengthen practicality of the present utility model, popularization the most of the present utility model.
Fig. 2 is profile of the present utility model, as shown in Figure 2, it is provided with noise elimination ventilating blind 8 at the air outlet of rectangle microperforated panel complex muffler 7 of the present utility model, so can reduce the noise at air outlet further, effectively prevent the noise interference to surrounding enviroment.This utility model includes shearing rubber damper 9 and muffler bracket 10, it is provided with damping spring combined vibration-damper 11 on described shearing rubber damper 9, described rectangle microperforated panel complex muffler 7 is installed on muffler bracket 10, and described low-noise cabinet type centrifugal blower 1 is installed on damping spring combined vibration-damper 11.So can effectively weaken rectangle microperforated panel complex muffler 7 and the vibration of low-noise cabinet type centrifugal blower 1, be greatly reinforced job stability of the present utility model.This utility model includes the installing hole 12 for being installed into airduct 3 and discharge pipe 6, is provided with the plugged zone 13 for increasing air-tightness and firmly installing property between blast pipe 3 and discharge pipe 6 and installing hole 12.Plugged zone 13 of the present utility model is made up of cement layer, bitumen layer and fire prevention mud layer three-layer-material, not only good airproof performance, and fastness is high but also has fire-proof function, substantially increases performance of the present utility model.The air inlet of blast pipe 3 of the present utility model is provided with rustless steel fly net 14.The bore hole size of rustless steel fly net 14 of the present utility model is less than 6mm*6mm, can effectively prevent insecticide from entering blast pipe 3, substantially increase job stability of the present utility model, effectively reduce fault rate of the present utility model.
Owing to the rotational noise of blower fan is directly proportional to 10 powers of impeller circumferential speed, eddy current crack is directly proportional to speed 6 power or 5 powers of circumference of impeller, therefore reduces rotating speed and can reduce fan noise.Under identical discharge quantity of fan and blast, the rotating speed of axial flow blower and impeller diameter are all greater than centrifugal fan of cabinet type.Considering for noise reduction, this utility model uses centrifugal fan of cabinet type to replace axial flow blower as the main ventilation installation in substation transformer chamber ventilating system.
Owing to dissipative muffler centering, high frequency noise soundproof effect are preferable；Reactive muffler to low, intermediate frequency soundproof effect is preferable.This utility model utilizes above-mentioned characteristic, the two is combined the rectangle microperforated panel complex muffler 7 of composition, noise in basic, normal, high whole frequency range all can be obtained obvious soundproof effect, sound deadening capacity can be controlled in about 25-27dB, the actual measurement noise figure of air outlet meets the regulation of " Industrial Enterprise Factory Boundary environment noise discharge standard " (GB12348-2008) 2 class standard, i.e. between daytime, noise sound level is not higher than 60dB, and night noise sound level is not higher than 50dB.
The above, preferred embodiment the most of the present utility model, this utility model is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection domain of the present utility model.
Claims (6)
1. the frequency control ventilating system of a substation transformer chamber, it is characterized in that: include low-noise cabinet type centrifugal blower (1), the air inlet of low-noise cabinet type centrifugal blower (1) connects the one or seven ten degree Celsius of smoke-and fire-preventing valve (2), the air inlet of the one or seven ten degree Celsius of smoke-and fire-preventing valve (2) connects blast pipe (3), the air inlet of blast pipe (3) is connected with substation transformer chamber, the air outlet of low-noise cabinet type centrifugal blower (1) connects air pipe check valve (4), the air outlet of air pipe check valve (4) connects the two or seven ten degree Celsius of smoke-and fire-preventing valve (5), the air outlet of the two or seven ten degree Celsius of smoke-and fire-preventing valve (5) connects discharge pipe (6), the air outlet of discharge pipe (6) connects rectangle microperforated panel complex muffler (7).
The frequency control ventilating system of a kind of substation transformer chamber the most according to claim 1, it is characterised in that: it is provided with noise elimination ventilating blind (8) at the air outlet of described rectangle microperforated panel complex muffler (7).
The frequency control ventilating system of a kind of substation transformer chamber the most according to claim 1, it is characterised in that: being provided with muffler bracket (10), described rectangle microperforated panel complex muffler (7) is installed on muffler bracket (10).
The frequency control ventilating system of a kind of substation transformer chamber the most according to claim 1, it is characterized in that: include shearing rubber damper (9), being provided with damping spring combined vibration-damper (11) on described shearing rubber damper (9), described low-noise cabinet type centrifugal blower (1) is installed on damping spring combined vibration-damper (11).
The frequency control ventilating system of a kind of substation transformer chamber the most according to claim 1, it is characterized in that: include the installing hole (12) for being installed into airduct (3) and discharge pipe (6), between blast pipe (3) and discharge pipe (6) and installing hole (12), be provided with the plugged zone (13) for increasing air-tightness and firmly installing property.
6. according to the frequency control ventilating system of the arbitrary described a kind of substation transformer chamber of claim 1 or 5, it is characterised in that: the air inlet of described blast pipe (3) is provided with rustless steel fly net (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620349248.3U CN205565449U (en) | 2016-04-21 | 2016-04-21 | Transformer station owner becomes variable frequency speed governing(VFSG) ventilation system of room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620349248.3U CN205565449U (en) | 2016-04-21 | 2016-04-21 | Transformer station owner becomes variable frequency speed governing(VFSG) ventilation system of room |
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|---|---|
| CN205565449U true CN205565449U (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620349248.3U Active CN205565449U (en) | 2016-04-21 | 2016-04-21 | Transformer station owner becomes variable frequency speed governing(VFSG) ventilation system of room |
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| CN (1) | CN205565449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576553A (en) * | 2020-12-22 | 2021-03-30 | 国家电网有限公司 | Main transformer noise reduction method for outdoor transformer substation |
-
2016
- 2016-04-21 CN CN201620349248.3U patent/CN205565449U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576553A (en) * | 2020-12-22 | 2021-03-30 | 国家电网有限公司 | Main transformer noise reduction method for outdoor transformer substation |
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