CN201614947U - Combined exhaust muffler for steam turbine generator set - Google Patents
Combined exhaust muffler for steam turbine generator set Download PDFInfo
- Publication number
- CN201614947U CN201614947U CN2010201319948U CN201020131994U CN201614947U CN 201614947 U CN201614947 U CN 201614947U CN 2010201319948 U CN2010201319948 U CN 2010201319948U CN 201020131994 U CN201020131994 U CN 201020131994U CN 201614947 U CN201614947 U CN 201614947U
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- CN
- China
- Prior art keywords
- chamber
- generator set
- suction tude
- muffler
- turbo
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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.)
- Expired - Lifetime
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Abstract
A combined exhaust muffler for a steam turbine generator set is provided with a casing, an air inlet pipe mounted in the casing and an exhaust pipe mounted on the exterior of the casing; the utility model is characterized in that: a plurality layers of annular resonance chambers are arranged on the exterior of the air inlet pipe in the casing, an expansion chamber is arranged on the exterior of the resonance chambers, a water distribution chamber is arranged on upper parts of the resonance chambers and the expansion chamber, and a water distribution hole is machined at the bottom of the water distribution chamber; a plurality of sound absorption holes are machined on the cavity walls of the air inlet pipe and the resonance chambers; the water distribution chamber is connected with the water inlet pipe and a drain pipe is mounted at the bottom of the expansion chamber; the combined exhaust muffler has the muffling frequency characteristics of both a resistant muffler and an atomizing muffler, also has compact structure, high intensity, long service life and good muffling effect.
Description
(1) technical field: the utility model relates to a kind of baffler, specifically is the combined muffler of a kind of Turbo-generator Set.
(2) prior art: the noise of heat power equipment discharge of steam is the aerodynamic noise that discharge of steam gave off in one of man-made noise source, particularly steam turbine, propagate far away, the principal element of befouling environment especially.
The exhaust mode of the steam turbine of smelting enterprise's use at present is air to air in line for delivering to the 25m height by the DN350mm straight tube.In fact, gauge pressure is 1kg/cm
2Saturated vapour, its speed can reach 30～40m/S, high-speed like this steam, the noise that causes when arranging to atmosphere is very high, after measured, steam turbine is when normal steam discharge, the noise sound level that is produced is 115dB (A), because sound source radiation point is in the high-altitude, so propagate far away, the greatest irradiation radius of influence reaches more than 1000 meter, and then noise is bigger when exhaust steam pressure is higher, and (existing enterprise permission noise sound level is 90dB (A) before 1 day January in 1980 considerably beyond the numerical value of " industrial enterprise's noise sanitary standard " that China issued regulation, it is 85dB (A) that enterprise's permission noise sound level is reconstructed in newly-built enlarging), therefore, must install baffler additional in the steam-expelling port design, to improve environmental pollution.
(3) summary of the invention: the purpose of this utility model just provides a kind of compact structure, intensity height, the combined muffler of the Turbo-generator Set of good muffling effect.
The utlity model has shell, suction tude is housed in the shell, shell is equipped with outlet pipe outward, suction tude in described housing is outside equipped with several layers annular resonant chamber, resonant chamber is outside equipped with expansion chamber, and resonant chamber and expansion chamber top are provided with water-dividing chamber, and the water-dividing chamber bottom has tapping hole; Be equipped with some sound-absorption hole on the chamber wall of described suction tude and resonant chamber; On water-dividing chamber, be connected with intake pipe, drain pipe be housed in the expansion chamber bottom.
Described suction tude is outside equipped with two resonant chambers that are made of three layers of acoustic board.
Sound-absorption hole position on described suction tude and the resonance chamber wall shifts to install up and down.
The central axis of described suction tude and outlet pipe point-blank.
Described outlet pipe is a breeches pipe.
The utility model makes sound wave produce reflection, interfere by adopting the porous diffusion, reduce flow velocity, disperse step-down and changing acoustic reactance etc.; Adopt the series connection of more piece resonant cavity can obtain acoustic attenuation performance preferably; On acoustic board, drill many sound-absorption hole simultaneously, each aperture is equivalent to a single resonance sound-absorbing device, and its effect is equivalent to a continuous single resonance sound-absorbing device, but than single resonance sound-absorbing device economy.
Simultaneously, introduce cooling water by the tapping hole that drills on the water-dividing chamber bottom to the stream passageway internal spraying; Produce friction when on the one hand, utilizing liquid, the mixing of gas two media and consume a part of acoustic energy; On the other hand, utilize mix cold in baffler the formation temperature gradient, thereby cause sound velocity gradient to change and improve acoustic attenuation performance; Simultaneously, because cooling is shunk vapour volume significantly, steam flow speed reduces and raising noise elimination effect.
The utility model is through on probation at turbine discharge mouth place, in 20m place, distance baffler center, the mensuration that we carry out sound deadening capacity, following table as a result.
Sound deadening capacity detects table
| Project | Before being unkitted baffler | After installing combined baffler additional |
| Noise figure/dB (A) | 115 | 63 |
| Project | Before being unkitted baffler | After installing combined baffler additional |
| Influence to language | Shout and also do not hear | 1.3m interior can normally the talk |
Illustrate install the utility model additional after, working environment is greatly improved, and has reduced the noise pollution to environment, effect is obvious.
The utility model has the frequency of noise elimination characteristic of resistant noise-reducing device and spraying baffler simultaneously, compact structure, and intensity height, steam ouput are designed to the Y-type three way type structure, the recoil that in the time of can offsetting exhaust baffler itself is produced.
(4) description of drawings
Fig. 1 is a sectional structure schematic representation of the present utility model;
Fig. 2 be among Fig. 1 A-A to the sectional structure schematic representation;
Among the figure, 1-shell, 2-suction tude, 3-outlet pipe, 4-resonant chamber, 5-expansion chamber, 6-water-dividing chamber, 7-tapping hole, 8-sound-absorption hole, 9-intake pipe, 10-drain pipe.
(5) embodiment:
Referring to Fig. 1, Fig. 2, the combined muffler of this Turbo-generator Set has shell 1, and suction tude 2 is equipped with at the middle part in the shell, and housing is equipped with outlet pipe 3 outward, the central axis of suction tude and outlet pipe point-blank, and outlet pipe is a breeches pipe; Be outside equipped with several layers annular resonant chamber 4 in described suction tude, suction tude is outside equipped with two resonant chambers that are made of three layers of acoustic board in the present embodiment; The quantity of resonant chamber is calculated according to air displacement and is decided.Resonant chamber is outside equipped with expansion chamber 5, and resonant chamber and expansion chamber top are provided with water-dividing chamber 6, and the water-dividing chamber bottom has tapping hole 7; Be equipped with some sound-absorption hole 8 on the chamber wall of described suction tude 2 and two resonant chambers; For reaching better absorbing sound and lowering noise effect, the sound-absorption hole position shifts to install up and down.On water-dividing chamber, be connected with intake pipe 9, drain pipe 10 be housed in the expansion chamber bottom.
Suction tude, resonant chamber, expansion chamber, water-dividing chamber all are welded into a whole in the said structure.
Claims (5)
1. the combined muffler of Turbo-generator Set, has shell, suction tude is housed in the shell, shell is equipped with outlet pipe outward, it is characterized in that: the suction tude in described housing is outside equipped with several layers annular resonant chamber, resonant chamber is outside equipped with expansion chamber, and resonant chamber and expansion chamber top are provided with water-dividing chamber, and the water-dividing chamber bottom has tapping hole; Be equipped with some sound-absorption hole on the chamber wall of described suction tude and resonant chamber; On water-dividing chamber, be connected with intake pipe, drain pipe be housed in the expansion chamber bottom.
2. the combined muffler of Turbo-generator Set according to claim 1 is characterized in that: described suction tude is outside equipped with two resonant chambers that are made of three layers of acoustic board.
3. the combined muffler of Turbo-generator Set according to claim 1 and 2 is characterized in that: the sound-absorption hole position on described suction tude and the resonance chamber wall shifts to install up and down.
4. the combined muffler of Turbo-generator Set according to claim 1, it is characterized in that: the central axis of described suction tude and outlet pipe point-blank.
5. the combined muffler of Turbo-generator Set according to claim 1 is characterized in that: described outlet pipe is a breeches pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201319948U CN201614947U (en) | 2010-03-11 | 2010-03-11 | Combined exhaust muffler for steam turbine generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201319948U CN201614947U (en) | 2010-03-11 | 2010-03-11 | Combined exhaust muffler for steam turbine generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201614947U true CN201614947U (en) | 2010-10-27 |
Family
ID=43001317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201319948U Expired - Lifetime CN201614947U (en) | 2010-03-11 | 2010-03-11 | Combined exhaust muffler for steam turbine generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201614947U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836339A (en) * | 2012-11-27 | 2014-06-04 | 深圳市达航工业有限公司 | Air feed silencer of aircraft air source truck |
| CN104564181A (en) * | 2014-12-02 | 2015-04-29 | 宝钢集团新疆八一钢铁有限公司 | Small-bore jet dissipative muffler |
| CN109404344A (en) * | 2018-10-26 | 2019-03-01 | 华帝股份有限公司 | Low-noise range hood |
-
2010
- 2010-03-11 CN CN2010201319948U patent/CN201614947U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836339A (en) * | 2012-11-27 | 2014-06-04 | 深圳市达航工业有限公司 | Air feed silencer of aircraft air source truck |
| CN104564181A (en) * | 2014-12-02 | 2015-04-29 | 宝钢集团新疆八一钢铁有限公司 | Small-bore jet dissipative muffler |
| CN104564181B (en) * | 2014-12-02 | 2020-02-04 | 新疆喜马力热力股份有限公司 | Small hole injection dissipative muffler |
| CN109404344A (en) * | 2018-10-26 | 2019-03-01 | 华帝股份有限公司 | Low-noise range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DAYE NONFERROUS METALS GROUP HOLDING CO., LTD. Free format text: FORMER NAME: DAYE NON-FERROUS METALS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 435005 Hubei city of Huangshi Province under new smelting Road No. 65 Co-patentee after: Daye Nonferrous Metals Co., Ltd. Patentee after: Daye Nonferrous Metals Group Holdings Co., Ltd. Co-patentee after: Daye Nonferrous Metals Design Institute Co., Ltd. Address before: 435005 Hubei city of Huangshi Province under new smelting Road No. 65 Co-patentee before: Daye Nonferrous Metals Co., Ltd. Patentee before: Daye Non-ferrous Metals Co., Ltd. Co-patentee before: Daye Nonferrous Metals Design Institute Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101027 |
|
| CX01 | Expiry of patent term |