JPS56113074A - Water hammer preventive device - Google Patents
Water hammer preventive deviceInfo
- Publication number
- JPS56113074A JPS56113074A JP1547180A JP1547180A JPS56113074A JP S56113074 A JPS56113074 A JP S56113074A JP 1547180 A JP1547180 A JP 1547180A JP 1547180 A JP1547180 A JP 1547180A JP S56113074 A JPS56113074 A JP S56113074A
- Authority
- JP
- Japan
- Prior art keywords
- water
- water piping
- reservoir
- air
- pump
- 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
Landscapes
- Reciprocating Pumps (AREA)
Abstract
PURPOSE: To prevent producing water hammer with minimizing average flow speed change in a water piping in such a way that the condition of losing power from a prime mover for a pump is detected, and high pressure is forced into the water piping by the detecting signals.
CONSTITUTION: Water is fed from a suction reservoir 1 through a water piping 12 to a discharge reservoir 9 by a pump 2. Then, when a prime mover for the pump 2 loses power by some cause, a driving condition detector 3 detects it, which gives signals to a sequence device 4, the sequence device 4 gives open signals to a pneumatic valve 5, and high pressure air is forced from an air reservoir 6 through a nozzle 8 into the water piping 12. The air forced into the water piping 12 is expandingly moved in the direction of the discharge reservoir 9, at the same time, water in the water piping 12 is moved likewise in the same direction. These movements continue until inner pressure in the air reservoir 6 balances with the inner pressure in the water piping 12. Thus, water hammer is prevented by minimizing average flow speed change of flowing water.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1547180A JPS56113074A (en) | 1980-02-13 | 1980-02-13 | Water hammer preventive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1547180A JPS56113074A (en) | 1980-02-13 | 1980-02-13 | Water hammer preventive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56113074A true JPS56113074A (en) | 1981-09-05 |
Family
ID=11889704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1547180A Pending JPS56113074A (en) | 1980-02-13 | 1980-02-13 | Water hammer preventive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56113074A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0383741U (en) * | 1989-12-11 | 1991-08-26 |
-
1980
- 1980-02-13 JP JP1547180A patent/JPS56113074A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0383741U (en) * | 1989-12-11 | 1991-08-26 |
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