CN106640772A - Draught fan for special grade low-noise tunnel construction - Google Patents
Draught fan for special grade low-noise tunnel construction Download PDFInfo
- Publication number
- CN106640772A CN106640772A CN201611034931.9A CN201611034931A CN106640772A CN 106640772 A CN106640772 A CN 106640772A CN 201611034931 A CN201611034931 A CN 201611034931A CN 106640772 A CN106640772 A CN 106640772A
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- China
- Prior art keywords
- muffler
- silencer
- air inlet
- straight section
- water conservancy
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A draught fan for special grade low-noise tunnel construction comprises a side air inflow silencer, a straight-and-curved combination silencer, a flow guiding air inflow silencer, a main machine and a flow guiding air outflow silencer; the straight-and-curved combination silencer comprises a front straight-section air inflow silencer, a curved plate silencer and a rear straight-section air inflow silencer; and a plurality of curved silencing plates are installed in the curved plate silencer, silencing tubes are installed outside the tube walls of the flow guiding air inflow silencer, the main machine and the flow guiding air outflow silencer in a sleeving mode, and the interiors of the silencing tube walls are filled with silencing materials. The draught fan for special grade low-noise tunnel construction has the beneficial effects that on the basis of a flow guiding air inflow silencer and a side air inflow silencer of the prior art, the amount of the straight-and-curved combination silencers and the silencing tubes is increased, so that noise leakage is greatly reduced, and through test comparing, noise can be lowered by about 30 dB.
Description
Technical field
The present invention relates to a kind of blower fan, and in particular to a kind of superfine low noise constructing tunnel blower fan.
Background technology
At present, prior art removes haze high tower special fan（As shown in accompanying drawing 1, Fig. 2）, Chinese Patent Application No.：
2016107923810, it is characterized in that：There are multiple vertically disposed bloops 11 in bend pipe 10, bloop 11 is super by orifice plate cladding
Thin glass yarn cotton system is formed；Noise can reduce 15dB or so.Vertically disposed bloop windage is little, and processing cost is low, but noise reduction
Effect is further improved.
A kind of super low noise constructing tunnel blower fan of prior art（As shown in accompanying drawing 3,4,5）, Chinese Patent Application No.：
201610919059X, is characterized in that：Three sections are respectively mounted acoustical panel 6, stage casing before, during and after dividing in anti-coagulating action formula reflection muffler 2
Acoustical panel 6 vertically install, the acoustical panel 6 of leading portion and back segment is transversely mounted respectively；Noise can reduce 10dB or so.Due to anti-coagulating action
Formula reflection the inner casing 5 of muffler 2 in before, during and after three sections all point-blank, erasure effect is further improved.
The content of the invention
The purpose of the present invention is exactly that prior art is improved, and provides a kind of superfine low noise constructing tunnel wind
Machine.
To achieve these goals the technical solution used in the present invention is：A kind of superfine low noise constructing tunnel blower fan,
Including side suction silencer, straight curved combination muffler, water conservancy diversion suction silencer, main frame, water conservancy diversion air-out muffler, its feature exists
In：Described straight curved combination muffler includes front straight section air inlet fan muffler, bent plate muffler, rear straight section air inlet fan muffler；
There is multi-disc acoustical panel in the front straight section air inlet fan muffler and rear straight section air inlet fan muffler；There is multi-disc curved in bent plate muffler
Shape acoustical panel；The two ends of bent plate muffler flange connects front straight section air inlet fan muffler and rear straight section air inlet fan muffler, curved
Bending acoustical panel in plate muffler staggers with the acoustical panel in front straight section air inlet fan muffler and rear straight section air inlet fan muffler
Install；The front end of front straight section air inlet fan muffler is connected with side suction silencer flange；Afterwards straight section air inlet fan muffler, water conservancy diversion enter
Wind muffler, main frame, water conservancy diversion air-out muffler are connected successively with flange；The acoustical panel and bending acoustical panel are super by orifice plate cladding
Thin glass yarn cotton system is formed；Straight curved combination muffler, water conservancy diversion suction silencer, main frame, the barrel of water conservancy diversion air-out muffler are all
Deadener is filled with bilayer, double-deck barrel；Water conservancy diversion suction silencer, main frame, water conservancy diversion air-out muffler barrel overcoat
Have in hush pipe, hush pipe barrel and be filled with deadener.
Compared with prior art, the invention has the beneficial effects as follows：Disappear in prior art water conservancy diversion suction silencer 24, side air intake
Increase straight curved combination muffler and hush pipe 9 on the basis of sound device 1, noise leakage is greatly reduced, through test comparison, noise
30dB or so can be reduced.
Description of the drawings
Below in conjunction with the accompanying drawings the invention will be further described.
Fig. 1 is prior art except a kind of structural representation of combination muffler of haze high tower special fan；
Fig. 2 is Figure 1A-A generalized sections；
Fig. 3 is the structural representation of prior art super low noise constructing tunnel blower fan；
Fig. 4 is Fig. 3 stage casings D-D profiles；
Fig. 5 is Fig. 3 leading portions B-B or back segment C-C profiles；
Fig. 6 is the structural representation of superfine low noise constructing tunnel blower fan embodiment of the invention；
Fig. 7 is the sectional view of Fig. 6 E-E or G-G positions；
Fig. 8 is the sectional view of Fig. 6 F-F positions；
Icon explanation：1. side suction silencer；2. anti-coagulating action formula reflects muffler；3. main frame；4. shell；5. inner casing；6.
Acoustical panel；7. deadener；8. bending acoustical panel；9. hush pipe；10. bend pipe；11. bloops；13. air inlet through hollow shaft machines
Muffler；Straight section air inlet fan muffler before 21.；22. bent plate mufflers；Straight section air inlet fan muffler after 23.；24. water conservancy diversion air intakes
Muffler；25. water conservancy diversion air-out mufflers.
Specific embodiment
Fig. 1 is prior art except a kind of structural representation of combination muffler of haze high tower special fan；Fig. 2 is Figure 1A-A
Generalized section；Except haze high tower special fan is by 13 groups of side suction silencer 1, elbow muffler and air inlet through hollow shaft machine muffler
Into including the side suction silencer 1, elbow muffler, air inlet through hollow shaft machine muffler 13 that are sequentially connected, the elbow muffler bag
Flange 4, bend pipe 10, bloop 11 are included, the two ends of the bend pipe 10 have in flange 4, bend pipe 10 and there are multiple vertically disposed noise reductions
Piece 11, bloop 11 is formed by orifice plate Coated glass silk flosssilk wadding system.Vertically disposed bloop windage is little, and processing cost is low,
But erasure effect is further improved.
Fig. 3 is the structural representation of prior art super low noise constructing tunnel blower fan；Fig. 4 is Fig. 3 stage casings D-D sections
Figure；Fig. 5 is Fig. 3 leading portions B-B or back segment C-C profiles；Super low noise constructing tunnel blower fan, including side suction silencer 1, resistance
Solidifying formula reflection muffler 2, main frame 3, there is deadener 7 between shell, the inner casing of main frame 3, deadener is superfine glass silk flosssilk wadding,
The inlet side and air side of main frame 3 is respectively connected with an anti-coagulating action formula reflection muffler 2, and the present embodiment main frame 3 lists two-stage
To revolving main frame, compared to existing technology the invention provides anti-coagulating action formula reflection muffler 2, the anti-coagulating action formula reflection muffler 2 is by outer
Shell 4, inner casing 5, acoustical panel 6 are constituted, and deadener 7 is filled between shell 4, inner casing 5, and deadener is superfine glass silk flosssilk wadding,
Three sections are respectively mounted acoustical panel 6 before, during and after dividing in inner casing 5, and the acoustical panel 6 in stage casing is vertically installed, the acoustical panel of leading portion and back segment
6 are transversely mounted respectively, and the deadener of acoustical panel 6 is formed by orifice plate Coated glass silk flosssilk wadding system.Because the reflection of anti-coagulating action formula disappears
Before, during and after in the inner casing 5 of sound device 2 three sections all point-blank, erasure effect is further improved.
Fig. 6 is the structural representation of superfine low noise constructing tunnel blower fan embodiment of the invention, and Fig. 7 is Fig. 6 E-E or G-
The sectional view of G positions, Fig. 8 is the sectional view of Fig. 6 F-F positions, a kind of superfine low noise constructing tunnel blower fan of the present invention, including
Side suction silencer 1, straight curved combination muffler, water conservancy diversion suction silencer 24, main frame 3, water conservancy diversion air-out muffler 25, with existing skill
The difference of art is：Described straight curved combination muffler includes front straight section air inlet fan muffler 21, bent plate muffler 22, rear straight section
Air inlet fan muffler 23；There is multi-disc acoustical panel 6 in the front straight section air inlet fan muffler 21 and rear straight section air inlet fan muffler 23；
There is multi-disc bending acoustical panel 8 in bent plate muffler 22；The straight section air inlet fan noise reduction before flange connection of the two ends of bent plate muffler 22
Device 21 and rear straight section air inlet fan muffler 23, the bending acoustical panel 8 in bent plate muffler 22 and front straight section air inlet fan muffler 21
Stagger installation with the acoustical panel 6 in rear straight section air inlet fan muffler 23；The front end of front straight section air inlet fan muffler 21 and side air intake
The flange of muffler 1 connects；Straight section air inlet fan muffler 23, water conservancy diversion suction silencer 24, main frame 3, water conservancy diversion air-out muffler 25 afterwards
Connected with flange successively；The acoustical panel 6 and bending acoustical panel 8 are formed by orifice plate Coated glass silk flosssilk wadding system；Straight curved combination
Muffler, water conservancy diversion suction silencer 24, main frame 3, the barrel of water conservancy diversion air-out muffler 25 are all double-deck, are filled with double-deck barrel
Deadener 7；Hush pipe 9, hush pipe are cased with outside water conservancy diversion suction silencer 24, main frame 3, the barrel of water conservancy diversion air-out muffler 25
Deadener 7 is filled with 9 barrels.The above deadener 7 is superfine glass silk flosssilk wadding.
The present invention increases straight curved combination on the basis of prior art water conservancy diversion suction silencer 24, side suction silencer 1 and disappears
Sound device and hush pipe 9, greatly reduce noise leakage, and through test comparison, noise can reduce 30dB or so.
Claims (1)
1. a kind of superfine low noise constructing tunnel blower fan, including side suction silencer, straight curved combination muffler, water conservancy diversion air intake disappear
Sound device, main frame, water conservancy diversion air-out muffler, it is characterised in that：Described straight curved combination muffler includes front straight section air inlet fan noise reduction
Device, bent plate muffler, rear straight section air inlet fan muffler；In the front straight section air inlet fan muffler and rear straight section air inlet fan muffler
There is multi-disc acoustical panel；There is multi-disc bending acoustical panel in bent plate muffler；Straight section enters before the two ends flange connection of bent plate muffler
Muffler for fan and rear straight section air inlet fan muffler, the bending acoustical panel in bent plate muffler and front straight section air inlet fan muffler and
Afterwards the acoustical panel in straight section air inlet fan muffler staggers installation；The front end of front straight section air inlet fan muffler and side suction silencer method
Orchid connection；Afterwards straight section air inlet fan muffler, water conservancy diversion suction silencer, main frame, water conservancy diversion air-out muffler are connected successively with flange；Institute
State acoustical panel and bending acoustical panel to be formed by orifice plate Coated glass silk flosssilk wadding system；Straight curved combination muffler, water conservancy diversion air intake noise reduction
Device, main frame, the barrel of water conservancy diversion air-out muffler are all double-deck, and deadener is filled with double-deck barrel；In water conservancy diversion air intake noise reduction
It is cased with being filled with deadener in hush pipe, hush pipe barrel outside device, main frame, the barrel of water conservancy diversion air-out muffler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611034931.9A CN106640772A (en) | 2016-11-23 | 2016-11-23 | Draught fan for special grade low-noise tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611034931.9A CN106640772A (en) | 2016-11-23 | 2016-11-23 | Draught fan for special grade low-noise tunnel construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106640772A true CN106640772A (en) | 2017-05-10 |
Family
ID=58808951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611034931.9A Pending CN106640772A (en) | 2016-11-23 | 2016-11-23 | Draught fan for special grade low-noise tunnel construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640772A (en) |
Cited By (3)
| 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 |
| CN110529168A (en) * | 2019-10-13 | 2019-12-03 | 山西巨龙风机有限公司 | It is a kind of can automatic temperature-control air feed constructing tunnel ventilation blower |
| CN110821545A (en) * | 2019-12-03 | 2020-02-21 | 上海进贤机电科技有限公司 | Self-silencing axial flow fan ventilation system for tunnel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1262666A2 (en) * | 2001-05-30 | 2002-12-04 | M & I Heat Transfer Products Ltd. | Air inlet and outlet silencer structures for turbine |
| CN2527765Y (en) * | 2001-12-31 | 2002-12-25 | 南阳防爆集团有限公司 | Low noise explosion-proof convection rotary main ventilator for mine |
| CN201228644Y (en) * | 2008-06-05 | 2009-04-29 | 赵和富 | Exhaustion, heat radiation and silencing device for deep well ore |
| CN201461471U (en) * | 2009-07-30 | 2010-05-12 | 山西省侯马市鑫丰康风机有限公司 | Energy-saving axial-flow fan for long and large tunnel construction |
| CN206246425U (en) * | 2016-11-23 | 2017-06-13 | 山西巨龙风机有限公司 | A kind of superfine low noise constructing tunnel blower fan |
-
2016
- 2016-11-23 CN CN201611034931.9A patent/CN106640772A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1262666A2 (en) * | 2001-05-30 | 2002-12-04 | M & I Heat Transfer Products Ltd. | Air inlet and outlet silencer structures for turbine |
| CN2527765Y (en) * | 2001-12-31 | 2002-12-25 | 南阳防爆集团有限公司 | Low noise explosion-proof convection rotary main ventilator for mine |
| CN201228644Y (en) * | 2008-06-05 | 2009-04-29 | 赵和富 | Exhaustion, heat radiation and silencing device for deep well ore |
| CN201461471U (en) * | 2009-07-30 | 2010-05-12 | 山西省侯马市鑫丰康风机有限公司 | Energy-saving axial-flow fan for long and large tunnel construction |
| CN206246425U (en) * | 2016-11-23 | 2017-06-13 | 山西巨龙风机有限公司 | A kind of superfine low noise constructing tunnel blower fan |
Cited By (3)
| 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 |
| CN110529168A (en) * | 2019-10-13 | 2019-12-03 | 山西巨龙风机有限公司 | It is a kind of can automatic temperature-control air feed constructing tunnel ventilation blower |
| CN110821545A (en) * | 2019-12-03 | 2020-02-21 | 上海进贤机电科技有限公司 | Self-silencing axial flow fan ventilation system for tunnel |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |
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| WD01 | Invention patent application deemed withdrawn after publication |