GB172355A - Improved means for controlling the pressure in fluid-pressure systems - Google Patents
Improved means for controlling the pressure in fluid-pressure systemsInfo
- Publication number
- GB172355A GB172355A GB2225220A GB2225220A GB172355A GB 172355 A GB172355 A GB 172355A GB 2225220 A GB2225220 A GB 2225220A GB 2225220 A GB2225220 A GB 2225220A GB 172355 A GB172355 A GB 172355A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pipe
- pressure
- valve
- fluid
- feed
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
- F22D5/14—Controlling water feed or water level; Automatic water feeding or water-level regulators responsive to thermal expansion and contraction, e.g. of solid elements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
172,355. Marks, E. C. R., (Veenschoten, V. V.). July 26, 1920. Stop-gear. - In apparatus controlled by variations in the pressure of a fluid, a valve is arranged to admit a second fluid when the pressure of the controlling-fluid falls by a predetermined amount. Fig. 1 shows the application to a boiler feed-pump, having a valve in the feed-pipe controlled by the level of the water in the boiler. The stop-valve 12 in the steam-pipe 11 is controlled by a cylinder 13, the upper end of which is connected by pipes 25, 19 to the boiler feed-pipe, while the lower end is connected by a pipe 21 with the steam-pipe. The pipes 25, 19 communicate by means of a casing 14, Fig. 2. A valve 22 in the casing is acted on on its upper surface by the pressure in the feed-pipe and by a spring 35 regulated by a screw sleeve 39. The lower surface of the valve is acted on by steam and a head of condensation water in a pipe 20 communicating with the boiler. In the event of a great fall in the pressure in the feed-pipe, the water and steam in the pipe 20 lift the valve 22 and pass by the pipe 25 to the cylinder 13, thus closing the stop valve 12. In order to re-start the pump, a stop valve 51 in the pipe 20 is closed. The pressure of the spring 35 may be so regulated that slight fall in the feedwater pressure is sufficient to open the valve 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2225220A GB172355A (en) | 1920-07-26 | 1920-07-26 | Improved means for controlling the pressure in fluid-pressure systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2225220A GB172355A (en) | 1920-07-26 | 1920-07-26 | Improved means for controlling the pressure in fluid-pressure systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB172355A true GB172355A (en) | 1921-11-28 |
Family
ID=10176347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2225220A Expired GB172355A (en) | 1920-07-26 | 1920-07-26 | Improved means for controlling the pressure in fluid-pressure systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB172355A (en) |
-
1920
- 1920-07-26 GB GB2225220A patent/GB172355A/en not_active Expired
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