JPH0425094U - - Google Patents
Info
- Publication number
- JPH0425094U JPH0425094U JP6678690U JP6678690U JPH0425094U JP H0425094 U JPH0425094 U JP H0425094U JP 6678690 U JP6678690 U JP 6678690U JP 6678690 U JP6678690 U JP 6678690U JP H0425094 U JPH0425094 U JP H0425094U
- Authority
- JP
- Japan
- Prior art keywords
- hole
- orifice plates
- porous
- stage
- view
- 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.)
- Granted
Links
- 230000006837 decompression Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Description
第１図は本考案の一実施例に係る低騒音多段減
圧装置の縦断面図、第２図は第１図に示した１段
目多孔オリフイス板２ａ〜２ｃの正面図、第３図
は第１図に示した２段目多孔オリフイス板３ａ，
３ｂの正面図、第４図は本考案の一実施例と従来
例との減圧・減音性能を示す比較線図、第５図は
従来のオリフイス単段減圧装置を示す縦断面図、
第６図は従来のオリフイス多段減圧装置を示す縦
断面図、第７図は従来の金属線絡体による減圧装
置を示す図で、ａは縦断面図、ｂは押さえ金網の
正面図、第８図は従来の低騒音減圧装置を示す図
で、ａは縦断面図、ｂは格子状押さえ枠の正面図
である。
１……多孔質金属、２ａ〜２ｃ……１段目多孔
オリフイス板、３ａ，３ｂ……２段目多孔オリフ
イス板、４……減圧配管、５……フランジ、６…
…スペーサ。
FIG. 1 is a vertical cross-sectional view of a low-noise multi-stage decompression device according to an embodiment of the present invention, FIG. 2 is a front view of the first stage porous orifice plates 2a to 2c shown in FIG. 1, and FIG. The second stage porous orifice plate 3a shown in FIG.
3b is a front view, FIG. 4 is a comparison diagram showing the pressure reduction and sound reduction performance of an embodiment of the present invention and a conventional example, and FIG. 5 is a longitudinal cross-sectional view showing a conventional orifice single-stage pressure reduction device.
Fig. 6 is a vertical cross-sectional view showing a conventional multi-stage orifice decompression device, and Fig. 7 is a view showing a conventional depressurization device using a metal wire entanglement, in which a is a longitudinal cross-sectional view, b is a front view of a presser wire mesh, and Fig. The figures show a conventional low-noise pressure reducing device, in which a is a longitudinal cross-sectional view and b is a front view of a grid-like holding frame. 1... Porous metal, 2a to 2c... 1st stage porous orifice plate, 3a, 3b... 2nd stage porous orifice plate, 4... Decompression piping, 5... Flange, 6...
…Spacer.
Claims (1)
を保つて配設された複数段の多孔オリフイス板と
、同多孔オリフイス板のそれぞれに複数設けられ
後流側の段になるに従つて孔径が大きくなると共
に上段の孔から流れの方向に見た次段の孔が見通
し不能の位置に設けられた貫通孔と、多孔オリフ
イス板の相互間に設けられた多孔質金属とを具備
してなることを特徴とする低騒音多段減圧装置。 Multiple stages of porous orifice plates are arranged from the upstream side of the flow path to the downstream side with a required gap maintained, and each of the same porous orifice plates is provided with a plurality of holes, and the pore diameter increases as the stage goes downstream. The through hole is provided at a position where the next hole cannot be seen from the upper hole as viewed in the direction of flow as the hole becomes larger, and a porous metal is provided between the porous orifice plates. A low-noise multi-stage decompression device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6678690U JPH075357Y2 (en) | 1990-06-26 | 1990-06-26 | Low noise multi-stage depressurizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6678690U JPH075357Y2 (en) | 1990-06-26 | 1990-06-26 | Low noise multi-stage depressurizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0425094U true JPH0425094U (en) | 1992-02-28 |
| JPH075357Y2 JPH075357Y2 (en) | 1995-02-08 |
Family
ID=31599796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6678690U Expired - Lifetime JPH075357Y2 (en) | 1990-06-26 | 1990-06-26 | Low noise multi-stage depressurizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH075357Y2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005180690A (en) * | 2003-12-15 | 2005-07-07 | Pibiviesse Spa | Ball valve having high damping property against noise of fluid passage |
| WO2006059466A1 (en) * | 2004-11-30 | 2006-06-08 | Fujikura Rubber Ltd. | Rectified flow restricting device |
| WO2015064180A1 (en) * | 2013-10-31 | 2015-05-07 | 三菱日立パワーシステムズ株式会社 | Multistage pressure reduction device and boiler |
| WO2015098389A1 (en) * | 2013-12-27 | 2015-07-02 | 三菱日立パワーシステムズ株式会社 | Low-noise pressure reduction device and combustion device |
| CN108799685A (en) * | 2018-08-16 | 2018-11-13 | 西安希佛隆阀门有限公司 | A kind of multi-level throttle orifice plate |
-
1990
- 1990-06-26 JP JP6678690U patent/JPH075357Y2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005180690A (en) * | 2003-12-15 | 2005-07-07 | Pibiviesse Spa | Ball valve having high damping property against noise of fluid passage |
| JP4700956B2 (en) * | 2003-12-15 | 2011-06-15 | ピビビーゼ・エス・アール・エル | Ball valve with high damping against flow path noise |
| WO2006059466A1 (en) * | 2004-11-30 | 2006-06-08 | Fujikura Rubber Ltd. | Rectified flow restricting device |
| JPWO2006059466A1 (en) * | 2004-11-30 | 2008-06-05 | 藤倉ゴム工業株式会社 | Rectification diaphragm device |
| WO2015064180A1 (en) * | 2013-10-31 | 2015-05-07 | 三菱日立パワーシステムズ株式会社 | Multistage pressure reduction device and boiler |
| WO2015098389A1 (en) * | 2013-12-27 | 2015-07-02 | 三菱日立パワーシステムズ株式会社 | Low-noise pressure reduction device and combustion device |
| CN108799685A (en) * | 2018-08-16 | 2018-11-13 | 西安希佛隆阀门有限公司 | A kind of multi-level throttle orifice plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH075357Y2 (en) | 1995-02-08 |
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