CN2132082Y - Steam removing silencer for boiler - Google Patents
Steam removing silencer for boiler Download PDFInfo
- Publication number
- CN2132082Y CN2132082Y CN 92220203 CN92220203U CN2132082Y CN 2132082 Y CN2132082 Y CN 2132082Y CN 92220203 CN92220203 CN 92220203 CN 92220203 U CN92220203 U CN 92220203U CN 2132082 Y CN2132082 Y CN 2132082Y
- Authority
- CN
- China
- Prior art keywords
- spray orifice
- deflecting
- pipe
- circular hole
- arrangement
- 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
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- Exhaust Silencers (AREA)
Abstract
The utility model relates to a steam removing silencer for boiler, comprising an outer shell and a silencing mechanism arranged in the outer shell. The silencing mechanism comprises a pressure reducing plate, a direct bump resisting pipe, a flow direction deflector, an expansion depressing chamber, a spray orifice diffuser and a resistant expanding chamber with 180 DEG bending. After high-pressure steam enters the silencer, the high-pressure steam is throttled and decompressed repeatedly, is silenced with resistance, and is discharged; the sound pressure level can be reduced by 40-50 decibels. The silencer has the advantage of small volume, and compared with a like product, the weight of the utility model is 1/70-1/300 the weight of the like product; the rolled steel is saved by 99.5%, the equipment investment is saved by 84.3%, and the installation cost is saved by 41%. The utility model is suitable for a steam boiler whose pressure region is 4-40 kilograms per square centimeter.
Description
The utility model belongs to the device of eliminating noise, relates to a kind of steam exhaust-gas muffler for boiler.
Existing steam exhaust-gas muffler for boiler mainly contains dilatation buck and composite structure.Dilatation buck structure is utilized the Throttle Principle step-down and is obtained the noise elimination effect, be characterized in airtight housing, being provided with one or more layers microwell plate that interlocks formula or side-by-side or microporous pipe, when steam passes through, sound wave obtains decaying through shrinking repeatedly, expand and spreading and (sees " the 1951st page to 1954 pages of simple and clear mechanical engineer's handbook, the publication of Yunnan science and technology publishing house; " invisible pollution and control " the 284th page～285 pages, workman publishing house publishes).Composite structure is that the dilatation step-down is combined with resistance noise reduction, both realizes eliminating the noise by the throttling step-down, utilizes sound-absorbing material to realize eliminating the noise again.Though the silencer of said structure can obtain the noise elimination effect in wider frequency range, but because the structure of its noise elimination mechanism does not fully utilize noise-cancelling theory, cause huge, heavy (φ 800 * 1800～φ 1219 * 5000mm of whole muffler volume, 0.5～2.4 tons), this not only will consume a large amount of high-quality steel, and the installation floor space is big and inconvenient.Especially to the production of steam equipment of general frequent exhaust,,, can't install part if amassing huge silencer because own vol is little at all.
The purpose of this utility model is to overcome the deficiency of prior art, provides a kind of volume little, in light weight, the effective steam exhaust-gas muffler of eliminating the noise.
The utility model is achieved in that reactive muffling, the organic knot combination of resistance noise reduction principle, the structure of noise elimination mechanism is improved.Noise elimination mechanism comprise the decompression plate, directly hit resistive pipe, flow to arrangement for deflecting, expansion pressure-reducing chamber, spray orifice diffuser and resistance bending and dilate the chamber for 180 °.Mechanism adapts with noise elimination, and shell is designed to " worker " font, is passed through mutually with a horizontal pipe by the vertical pipe of a flanged dish to form, and the endoporus of vertical pipe is an air admission hole.The decompression plate is the plectane that the center has a circular hole, is installed in the air admission hole near the end; Flowing to arrangement for deflecting is the plectane that the center has a circular hole, is installed in the horizontal pipe near a certain end; The spray orifice diffuser is a plectane, its center have one with flow to circular hole on the arrangement for deflecting with the circular hole of diameter, have some spray orifices on its anchor ring, be installed in the horizontal pipe near the place, other end; The external diameter that directly hits resistive pipe is complementary with the circular hole aperture that flows to arrangement for deflecting and spray orifice diffuser center, and it is also fixing to insert the circular hole that flows to arrangement for deflecting and spray orifice diffuser center during installation; 180 ° of chambers of dilating of resistance bending are an arcuate bottom cylinder, and its external diameter, internal diameter are all identical with horizontal pipe, are connected the end that horizontal pipe is installed the spray orifice diffuser; Directly hit the inwall of the outer wall of resistive pipe and horizontal pipe and flow to arrangement for deflecting and space that the end face of spray orifice diffuser surrounds forms the expansion pressure-reducing chamber.
In order to make the noise elimination better effects if, should be by following parameter designing: the circular hole area at decompression plate center be 10～15% of an air admission hole sectional area, total area of nozzle hole on the little spray orifice diffuser anchor ring is 8～10% of an air admission hole sectional area, and injection diameter is 1.5～2.5 millimeters.
The utility model is applicable to 25～40kg/cm
2The utility boiler of pressure, 25kg/cm
2Production steam boiler and 4kg/cm that pressure is following
2The life steam boiler that pressure is above.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof:
Fig. 1 is a kind of structure chart of the present utility model;
Fig. 2 is the 1-1 profile of Fig. 1.
The details and the working condition of a kind of concrete structure that provides according to the utility model are provided in detail below in conjunction with accompanying drawing.
This silencer is pressed 40kg/cm
2Pressure rating design, its structure are made up of the noise elimination mechanism that is provided with in shell (9) and the shell as shown in Figure 1 and Figure 2.Noise elimination mechanism comprise decompression plate (2), directly hit resistive pipe (3), flow to arrangement for deflecting (4), expansion pressure-reducing chamber (5), spray orifice diffuser (6) and resistance bending and dilate chamber (8) for 180 °.Shell (9) is " worker " font, is passed through mutually with a horizontal pipe by the vertical pipe of a flanged dish (1) to form, and the endoporus of vertical pipe is an air admission hole, and its aperture is 50 millimeters; The area of decompression plate (2) circular hole that open at the center is 10% of an air admission hole sectional area; The gross area of the spray orifice of opening is 8% of an air admission hole sectional area on spray orifice diffuser (6) anchor ring, and injection diameter is 2 millimeters.
The material of each part of silencer: constituting the vertical pipe and the horizontal pipe of shell (9) and directly hitting resistive pipe (3) is 20# steel hot rolled seamless steel tube (YB231-70); Decompression plate (2), to flow to arrangement for deflecting (4) and spray orifice diffuser (6) be 5 millimeters 20# steel plate making by thickness; Ring flange (1) and resistance bending dilate chamber (8) for 180 ° and are done by the 20# steel.
During assembling, the mode that is connected and fixed between each part must be used short arc operation for welding, welding, is advisable with bead weld.
By said structure and the 40kg/cm that is dimensioned to
2The pressure rating silencer, long 180 millimeters, high 180 millimeters, weight has only 8 kilograms.
The working condition of silencer is as follows:
After silencer is connected in the gas exhaust piping, high steam enters silencer by air admission hole, through decompression plate (2) throttling step-down, directly hit resistive pipe (3) and flow to the spray orifice throttling step-down of arrangement for deflecting (4) reactive muffling, expansion pressure-reducing chamber (5) expansion step-down, spray orifice diffuser (6) and 180 ° of resistance bendings dilate chamber (8) reactive muffling after by the endoporus discharge of directly hitting resistive pipe (3), its sound pressure level can reduce by 40～50 decibels.For easy to install and have interchangeability, silencer can be designed to a kind of specification, if the exhaust caliber is 40～50 millimeters, then installs one, if the exhaust caliber is 75～100 millimeters, then installs two.
The utlity model has following advantage:
1, volume is little, in light weight, compares with the weight of like product, and its weight only is 1/70～1/300.
2, soundproof effect is good, and behind high steam process silencer, its sound pressure level can reduce by 40～50 decibels.
3, easy to install, do not need to increase any infrastructure during installation.
4, compare with existing like product, save steel 99.5%, save equipment investment 84.3%, save installation fee 40%.
Claims (2)
1, a kind of steam exhaust-gas muffler for boiler, form by the noise elimination mechanism that is provided with in shell (9) and the shell, it is characterized in that eliminating the noise mechanism comprise decompression plate (2), directly hit resistive pipe (3), flow to arrangement for deflecting (4), expansion pressure-reducing chamber (5), spray orifice diffuser (6), resistance bending and dilate chamber (8) for 180 °
Shell (9) is " worker " font, is passed through mutually with a horizontal pipe by the vertical pipe of a flanged dish (1) to form, and the endoporus of vertical pipe is an air admission hole,
Decompression plate (2) is installed in close end in the air admission hole for the center has the plectane of a circular hole,
Flow to arrangement for deflecting (4) for the center has the plectane of a circular hole, be installed in the horizontal pipe near a certain end,
Spray orifice diffuser (6) is a plectane, its center have one with flow to circular hole on the arrangement for deflecting with the circular hole of diameter, have some spray orifices on its anchor ring, be installed in the horizontal pipe near the place, other end,
The external diameter that directly hits resistive pipe (3) is complementary with the circular hole aperture that flows to arrangement for deflecting (4) and spray orifice diffuser (6) center, and it is also fixing to insert the circular hole that flows to arrangement for deflecting and spray orifice diffuser center during installation,
It is an arcuate bottom cylinder that the resistance bending dilates chamber (8) for 180 °, and its external diameter, internal diameter are all identical with the horizontal pipe of horizontal pipe, is connected the end that horizontal pipe is installed spray orifice diffuser (6),
Directly hit the inwall of the outer wall of resistive pipe (3) and horizontal pipe and flow to the space that the end face of arrangement for deflecting (4) and spray orifice diffuser (6) surrounds and form expansion pressure-reducing chamber (5).
2, silencer according to claim 1, the circular hole area at plate (2) center of it is characterized in that reducing pressure is 10～15% of an air admission hole sectional area, total area of nozzle hole on spray orifice diffuser (6) anchor ring is 8～10% of an air admission hole sectional area, and injection diameter is 1.5～2.5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92220203 CN2132082Y (en) | 1992-09-02 | 1992-09-02 | Steam removing silencer for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92220203 CN2132082Y (en) | 1992-09-02 | 1992-09-02 | Steam removing silencer for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2132082Y true CN2132082Y (en) | 1993-05-05 |
Family
ID=33767280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92220203 Expired - Fee Related CN2132082Y (en) | 1992-09-02 | 1992-09-02 | Steam removing silencer for boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2132082Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519646A (en) * | 2018-12-05 | 2019-03-26 | 上海市安装工程集团有限公司 | Apply to the silencer and its manufacturing method of jet chimney gas purging |
-
1992
- 1992-09-02 CN CN 92220203 patent/CN2132082Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519646A (en) * | 2018-12-05 | 2019-03-26 | 上海市安装工程集团有限公司 | Apply to the silencer and its manufacturing method of jet chimney gas purging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |