JPS5524555A - Electrical dust precipitator - Google Patents
Electrical dust precipitatorInfo
- Publication number
- JPS5524555A JPS5524555A JP9769178A JP9769178A JPS5524555A JP S5524555 A JPS5524555 A JP S5524555A JP 9769178 A JP9769178 A JP 9769178A JP 9769178 A JP9769178 A JP 9769178A JP S5524555 A JPS5524555 A JP S5524555A
- Authority
- JP
- Japan
- Prior art keywords
- fan
- foaming material
- sound
- noise
- rib
- 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.)
- Pending
Links
Abstract
PURPOSE: To improve the fan efficiency and to lower the noise, by providing slanting part and side wall part etc. made of foaming material having specified specific gravity at a fixed position of exhaust air passage and forming so as the inner part not to be seen from exhaust side.
CONSTITUTION: The exhaust air passage 4 is provided surrounding by the partition wall 2, 3 outside of the fan 1 in circumference direction and the slanting part 6 made of polyurethane like foaming material having 0.018W0.026 of specific gravity at the tip end of the tongue-shaped part 5, positioning along the outer circumference of the fan 1 nearly, slowly heightening in rotating direction of the fan 1 and making nearly the same height against the part 5 at the position of the part 5. Also, the passage 4 is formed as volute room by the side wall part 8, 9 made of the above mentioned foaming material and the foaming material rib 11 is joined with the above part 8, 9 and then, is provided corresponding to the part 6 so as the inner fan not to be seen from the exhaust side A directly. Thus, sound is scattered by the part 6 and noise is decreased by the sound absorbing effect of the foaming material and the prevention of directly transmitted sound by the rib 11 etc.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9769178A JPS5524555A (en) | 1978-08-09 | 1978-08-09 | Electrical dust precipitator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9769178A JPS5524555A (en) | 1978-08-09 | 1978-08-09 | Electrical dust precipitator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5524555A true JPS5524555A (en) | 1980-02-21 |
Family
ID=14198970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9769178A Pending JPS5524555A (en) | 1978-08-09 | 1978-08-09 | Electrical dust precipitator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5524555A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02266096A (en) * | 1989-04-06 | 1990-10-30 | Nippon Tetsudo Kensetsu Kodan | Constructing method for invert in shield tunnel, and classifier to be used for it |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1318986A (en) * | 1969-10-10 | 1973-05-31 | Zenkner K | Cross flow blower |
JPS5146167B2 (en) * | 1973-12-25 | 1976-12-07 |
-
1978
- 1978-08-09 JP JP9769178A patent/JPS5524555A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1318986A (en) * | 1969-10-10 | 1973-05-31 | Zenkner K | Cross flow blower |
JPS5146167B2 (en) * | 1973-12-25 | 1976-12-07 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02266096A (en) * | 1989-04-06 | 1990-10-30 | Nippon Tetsudo Kensetsu Kodan | Constructing method for invert in shield tunnel, and classifier to be used for it |
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