CN214741496U - Silencer for outlet of steam turbine diffusing pipe - Google Patents
Silencer for outlet of steam turbine diffusing pipe Download PDFInfo
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- CN214741496U CN214741496U CN202120885115.9U CN202120885115U CN214741496U CN 214741496 U CN214741496 U CN 214741496U CN 202120885115 U CN202120885115 U CN 202120885115U CN 214741496 U CN214741496 U CN 214741496U
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- exhaust pipe
- shell
- steam turbine
- wall
- pipe
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Abstract
The utility model discloses a silencer for the outlet of a steam turbine diffusing pipe, which is characterized by comprising a tubular shell; the left axial end of the exhaust pipe is a closed section positioned in the shell, the right axial end of the exhaust pipe is an open end positioned outside the shell, the exhaust pipe is in sealing fit with the right end of the shell, and a plurality of exhaust holes for communicating an exhaust cavity in the exhaust pipe with a cavity between the outer wall of the exhaust pipe and the inner wall of the shell are formed in the upper side wall of the exhaust pipe; one end of each partition board is fixed on the inner wall of the shell, the other end of each partition board is fixed on the outer wall of the exhaust pipe, intervals are arranged between the two circumferential ends of each partition board, and the partition boards are arranged at intervals in the circumferential direction; and the wire mesh is fixed in the cavity between the left end of the exhaust pipe and the left end of the shell. Through install silencing device additional at the mouth of diffusing of steam turbine, can expand the dilatation step-down to the gas of diffusing pipe exhaust to reduce sound attenuation, noise abatement.
Description
Technical Field
The utility model belongs to the technical field of the steam turbine, concretely relates to steam turbine diffuses tub export silencing device.
Background
Because the steam source of the steam turbine is not enough due to the fault of the previous process, the shutdown requirement is met by slowly cooling the high-pressure steam of the diffusing part for more than 2 hours, and at the moment, the noise of about 230 decibels is formed at the outlet of the diffusing pipe due to the emission of the high-pressure steam (about 8 MP), so that noise pollution is caused, and the human health of surrounding workers is seriously influenced.
Disclosure of Invention
The utility model provides a steam turbine diffuses tub export silencing device installs silencing device additional through the mouth of diffusing at the steam turbine, can be to diffusing the gaseous dilatation step-down of tub exhaust to reduce sound attenuation, noise reduction.
The utility model discloses a technical scheme as follows: the silencer for the outlet of the steam turbine diffusing pipe comprises,
a tubular housing;
the left axial end of the exhaust pipe is a closed section positioned in the shell, the right axial end of the exhaust pipe is an open end positioned outside the shell, the exhaust pipe is in sealing fit with the right end of the shell, and a plurality of exhaust holes for communicating an exhaust cavity in the exhaust pipe with a cavity between the outer wall of the exhaust pipe and the inner wall of the shell are formed in the upper side wall of the exhaust pipe;
one end of each partition board is fixed on the inner wall of the shell, the other end of each partition board is fixed on the outer wall of the exhaust pipe, intervals are arranged between the two circumferential ends of each partition board, and the partition boards are arranged at intervals in the circumferential direction;
and the wire mesh is fixed in the cavity between the left end of the exhaust pipe and the left end of the shell.
In addition to the above, preferably, the projections of the partition plates in the axial direction form a complete circle, and the projections of any two partition plates do not intersect.
In addition to the above-mentioned aspects, preferably, the housing and the exhaust pipe are both circular pipes, and the partition plate is an 1/4 arc-shaped long partition plate.
On the basis of the scheme, the wire mesh is preferably a steel wire mesh.
On the basis of the scheme, preferably, a flange used for connecting the shell with the outlet of the steam turbine diffusing pipe is fixedly installed at the left end of the shell.
On the basis of the above scheme, the silk screen preferably has a plurality of layers, and is arranged in a stacking manner in the axial direction.
In addition to the above, preferably, a drain outlet is provided below the left end of the housing, and a drain pipe is mounted on the drain outlet and a drain valve is mounted on the drain pipe.
Compared with the prior art, the utility model discloses following beneficial effect has: through install silencing device additional at the mouth of diffusing of steam turbine, can expand the dilatation step-down to the gas of diffusing pipe exhaust to reduce sound attenuation, noise abatement.
The water outlet is designed on the shell, so that water can be discharged in time.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the separator.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
As shown in fig. 1-2, a steam turbine diffuser exit silencer assembly includes,
a tubular housing 1;
the exhaust pipe 2 is provided with a closed section positioned in the shell at the axial left end and an open end positioned outside the shell at the axial right end, the exhaust pipe is in sealing fit with the right end of the shell, and the upper side wall of the exhaust pipe is provided with a plurality of exhaust holes 3 for communicating an exhaust cavity in the exhaust pipe with a cavity 6 between the outer wall of the exhaust pipe and the inner wall of the shell;
one end of each partition board is fixed on the inner wall of the shell, the other end of each partition board is fixed on the outer wall of the exhaust pipe, intervals are arranged between the two circumferential ends of each partition board, and the partition boards are arranged at intervals in the circumferential direction;
and the wire mesh 5 is fixed in a cavity between the left end of the exhaust pipe and the left end of the shell.
In the scheme, the silencer is additionally arranged at the diffusing port of the steam turbine, so that the exhausted gas of the diffusing pipe can be expanded and decompressed, the sound attenuation is reduced, and the noise is reduced.
Wherein, the projections of the partition boards in the axial direction form a complete circle, and the projections of any two partition boards are not crossed.
The shell and the exhaust pipe are both round pipes, and the partition plate is an 1/4 arc long partition plate.
The wire mesh is a steel wire mesh.
The left end fixed mounting of shell has and is used for the flange 7 with shell and steam turbine diffuse pipe exit linkage, and the flange design is convenient for install the shell to the diffuse mouth of pipe.
The silk screen has a plurality of layers, and the setting is overlapped in the axial, and the mesh of two adjacent silk screens is in order not to coincide in the axial projection, and the attenuation effect of sound is better.
A water outlet is arranged below the left end of the shell, a water discharging pipe is arranged on the water outlet, and a water discharging valve is arranged on the water discharging pipe. Liquid water is generated during the gas silencing treatment, so that the water outlet is designed to discharge water in time.
The method specifically comprises the following steps: the original DN200 pipeline is connected with a shell of the DN400 through a flange, a steel wire mesh is laid on one side, close to a diffusing port, of the interior of the shell, an exhaust pipe of the DN300 is connected with the DN400, 480 small holes (uniformly distributed) of D16MM are formed in the DN300, sound is attenuated layer by layer, and the sound is below 80 decibels after installation.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The silencer for the outlet of the steam turbine diffusing pipe is characterized by comprising,
a tubular housing;
the left axial end of the exhaust pipe is a closed section positioned in the shell, the right axial end of the exhaust pipe is an open end positioned outside the shell, the exhaust pipe is in sealing fit with the right end of the shell, and a plurality of exhaust holes for communicating an exhaust cavity in the exhaust pipe with a cavity between the outer wall of the exhaust pipe and the inner wall of the shell are formed in the upper side wall of the exhaust pipe;
one end of each partition board is fixed on the inner wall of the shell, the other end of each partition board is fixed on the outer wall of the exhaust pipe, intervals are arranged between the two circumferential ends of each partition board, and the partition boards are arranged at intervals in the circumferential direction;
and the wire mesh is fixed in the cavity between the left end of the exhaust pipe and the left end of the shell.
2. The steam turbine diffuser exit silencer assembly of claim 1, wherein the projections of said partitions in the axial direction form a complete circle and the projections of any two partitions do not intersect.
3. The steam turbine discharge duct outlet silencer according to claim 1, wherein the casing and the discharge duct are both circular pipes, and the partition is an 1/4 arc-shaped partition.
4. The steam turbine diffuser exit silencer assembly of claim 1 wherein said wire mesh is steel wire mesh.
5. The steam turbine discharge nozzle outlet silencer assembly of claim 1 wherein a flange is fixedly attached to the left end of the casing for connecting the casing to the turbine discharge nozzle outlet.
6. The steam turbine diffuser exit silencer assembly of claim 1 wherein said wire mesh has a plurality of layers stacked in an axial direction.
7. The steam turbine diffuser exit silencer assembly of claim 1, wherein a drain opening is provided below the left end of the casing, the drain opening having a drain pipe, the drain pipe having a drain valve mounted thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120885115.9U CN214741496U (en) | 2021-04-27 | 2021-04-27 | Silencer for outlet of steam turbine diffusing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120885115.9U CN214741496U (en) | 2021-04-27 | 2021-04-27 | Silencer for outlet of steam turbine diffusing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214741496U true CN214741496U (en) | 2021-11-16 |
Family
ID=78614181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120885115.9U Active CN214741496U (en) | 2021-04-27 | 2021-04-27 | Silencer for outlet of steam turbine diffusing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214741496U (en) |
-
2021
- 2021-04-27 CN CN202120885115.9U patent/CN214741496U/en active Active
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