GB254772A - Improvements in or relating to apparatus for use in connection with the supply of feed water to steam boilers - Google Patents
Improvements in or relating to apparatus for use in connection with the supply of feed water to steam boilersInfo
- Publication number
- GB254772A GB254772A GB678525A GB678525A GB254772A GB 254772 A GB254772 A GB 254772A GB 678525 A GB678525 A GB 678525A GB 678525 A GB678525 A GB 678525A GB 254772 A GB254772 A GB 254772A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pressure
- feed
- steam
- boiler
- 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
- F22D5/06—Controlling water feed or water level; Automatic water feeding or water-level regulators with receptacles external to, but in free communication with, the boilers and adapted to move up and down in accordance with change in water level
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
254,772. Myers, J. N. March 12, 1925. Fluid-actuated valves.-Feedwater is forced through a feed-heater into a gravity-feed apparatus in which the feeding pressure is maintained during charging, after which the pressure is so increased to boiler pressure as to allow the water to pass into the boiler without the increased pressure being transmitted to the feed heater. The apparatus consists of a cylinder A, Fig. 2, containing a steam tight piston B below which the feed is admitted through a pipe G and having pipes connected to its upper part for admitting and exhausting boiler steam through a pressure operated valve C. A spring loaded or like valve K in the steam exhaust pipe K<1> maintains a uniform back pressure in the cylinder while it is being supplied with fresh feed. A check valve prevents the boiler pressure from being transmitted to the feed heater and other auxiliaries. The sliding valve C, Figs. 4 and 6, is operated by boiler steam admitted to the top of a piston D' on the valve under the control of a pilot valve F operated by projections B<3> on a rod attached to the piston B. The projections engage in openings in a frame attached to the pilot valve and cause the valve to so slide backwards and forwards as to control ports allowing boiler steam to pass through passages C'. C<8> to the back of the piston D<1> or to exhaust through the passage C<8> and a pipe E<7>. Ports C<4> in the lining of the valve C place a pipe A<7> opening into the top of the cylinder A in communication with the exhaust pipe K<1> in the upper position of the valve, and with the steam admission pipe I<1> in the lower position of the valve. The piston B, the valve C and the pilot valve are formed or provided with rustless steel surfaces and work in rustless steel liners.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB678525A GB254772A (en) | 1925-03-12 | 1925-03-12 | Improvements in or relating to apparatus for use in connection with the supply of feed water to steam boilers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB678525A GB254772A (en) | 1925-03-12 | 1925-03-12 | Improvements in or relating to apparatus for use in connection with the supply of feed water to steam boilers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB254772A true GB254772A (en) | 1926-07-12 |
Family
ID=9820693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB678525A Expired GB254772A (en) | 1925-03-12 | 1925-03-12 | Improvements in or relating to apparatus for use in connection with the supply of feed water to steam boilers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB254772A (en) |
-
1925
- 1925-03-12 GB GB678525A patent/GB254772A/en not_active Expired
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