GB541449A - Improvements in and relating to the control of feed water supply to boilers and generators - Google Patents
Improvements in and relating to the control of feed water supply to boilers and generatorsInfo
- Publication number
- GB541449A GB541449A GB895940A GB895940A GB541449A GB 541449 A GB541449 A GB 541449A GB 895940 A GB895940 A GB 895940A GB 895940 A GB895940 A GB 895940A GB 541449 A GB541449 A GB 541449A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- bellows
- actuated
- subject
- valve
- 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 Fluid Pressure (AREA)
- Safety Valves (AREA)
- Irons (AREA)
Abstract
541,449. Feed-water regulators. ARMSTRONG, C. H., BROWN, N. H., and COPES REGULATORS, Ltd. May 20, 1940, No. 8959. [Class 135] An apparatus for controlling the supply of feed water to steam boilers in which the main feed valve is actuated by differential pressure has one of the actuating pressures variable by a control valve actuated by means responsive to the water level and the load on the generator. In the form shown in the Figure, the main feed valve 8 is formed integrally with a plunger 12 subject to feed pressure admitted through a passage 17 throttled by a needle valve 18 and with a leaky piston 10 subject on one side to boiler pressure and on the other to a variable pressure controlled by a needle valve 14 cooperating with a seat removably secured to the plunger. The valve 14 is actuated by a floating lever 16 one end of which is pivoted to a float-actuated lever turning on a fixed pivot 23 while the other end is coupled to a lever 25 turning on a pivot 26 and connected by a link 27 to a bellows 28. The bellows, which is adjustably loaded by a spring 31, has its open end secured to an annular plate while its closed end is guided by a spider 29, collapse of the bellows being limited by a stop 32. The outside of the bellows is subject to the pressure in the float chamber 3 which is connected to the generator by pipes 4, 5, while the outside of the bellows is subject to the pressure in the steam main on the discharge side of a superheater so that the presdifferential gives a measure of the steam flow. In a modification the float lever is pivoted on a link joined to the lever 26 and is linked directly to the pilot valve spindle. In a further modification the pilot valve spindle is connected by a link and lever to the midpoint of a floating lever one end of which is coupled by a link including a compression relief spring to a lever connected to a spring-loaded diaphragm subject to superheater inlet and discharge pressures. The other end of the floating lever is coupled by a link including a tension relief spring to one end of a spring-loaded bell-crank lever actuated by an inclined expanding tube connected by piping at both its free and anchored end to the generator. Specifications 418,208 and 491,271 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB895940A GB541449A (en) | 1940-05-20 | 1940-05-20 | Improvements in and relating to the control of feed water supply to boilers and generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB895940A GB541449A (en) | 1940-05-20 | 1940-05-20 | Improvements in and relating to the control of feed water supply to boilers and generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB541449A true GB541449A (en) | 1941-11-27 |
Family
ID=9862614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB895940A Expired GB541449A (en) | 1940-05-20 | 1940-05-20 | Improvements in and relating to the control of feed water supply to boilers and generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB541449A (en) |
-
1940
- 1940-05-20 GB GB895940A patent/GB541449A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB541449A (en) | Improvements in and relating to the control of feed water supply to boilers and generators | |
| US2563374A (en) | Pressure operated boiler feed water control | |
| US2228769A (en) | Combustion control | |
| US1563097A (en) | Automatic controller for liquid levels | |
| US1849601A (en) | Safety steam regulator | |
| GB698882A (en) | Improvements in or relating to feed water regulators for controlling the water levelin steam boilers | |
| US2129515A (en) | Injector | |
| GB491271A (en) | Improvements relating to boiler feed control | |
| GB363796A (en) | Improvements in and relating to regulating valves for liquid fuel burning plant | |
| GB303630A (en) | Improvements in automatic regulators particularly applicable for regulating the supply of feed water to steam boilers | |
| US1878660A (en) | Steam pressure governor | |
| US328468A (en) | Governor for supplying gaseous fuel | |
| GB216984A (en) | Steam pressure control gas valve for automatically regulating the pressure in all kinds of gas fired steam boilers and heating apparatus | |
| GB480812A (en) | Improvements in control systems | |
| GB775751A (en) | Improvements in or relating to the control of water flow through steam boilers | |
| GB331935A (en) | Means for controlling boiler feed supply and like systems | |
| SU63741A1 (en) | Three-pulse steam boiler power controller | |
| GB460869A (en) | Improvements in or relating to steam generators | |
| GB315976A (en) | Improvements in pressure regulators | |
| GB690570A (en) | Improvements relating to cut-off valves for use with fluid mixing valves | |
| GB603588A (en) | Improvements in or relating to the regulation of the water level in steam generators | |
| GB597142A (en) | Improved feed water regulating apparatus for steam boiler installations | |
| GB957481A (en) | Forced-flow once-through steam generators for critical or super-critical conditions | |
| GB474538A (en) | Improvements relating to the control of the flow of fluids, particularly of the feedwater supply to steam boilers | |
| GB390702A (en) | Improvements in or relating to apparatus for regulating water tube steam generators |