GB1011405A - Improvements in a control system for a steam generator - Google Patents
Improvements in a control system for a steam generatorInfo
- Publication number
- GB1011405A GB1011405A GB3383462A GB3383462A GB1011405A GB 1011405 A GB1011405 A GB 1011405A GB 3383462 A GB3383462 A GB 3383462A GB 3383462 A GB3383462 A GB 3383462A GB 1011405 A GB1011405 A GB 1011405A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steam
- superheater
- flash tank
- boiler
- 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
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
- F22B35/06—Control systems for steam boilers for steam boilers of forced-flow type
- F22B35/14—Control systems for steam boilers for steam boilers of forced-flow type during the starting-up periods, i.e. during the periods between the lighting of the furnaces and the attainment of the normal operating temperature of the steam boilers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (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
1,011,405. Starting forced flow steam boilers. GILBERT ASSOCIATES Inc. Sept. 4, 1962 [Sept. 5, 1961], No. 33834/62. Heading F4A. In a control system for starting a once through steam boiler, especially such a boiler wherein a signal increasing the firing rate according to a fixed starting programme may at any time be overridden by a signal representative of the rate of metal temperature rise at, for example, the superheater outlet header so as to hold this rate of rise within safe limits, a throttle and shut-off valve 9 is provided between the evaporator and superheater zones of the boiler to divert water-steam mixture to a flash tank 6 through a reducing valve 7. In operation steam liberated in the flash tank and the water drain therefrom may be conveyed to a feedwater heater 11, the surplus being delivered to a heat sump 10. Some of the steam may flow from the flash tank to the superheater through a check valve 8 to supplement steam which may be admitted to the superheater through the throttle valve 9. In a modification, Fig. 2 (not shown), the flash tank drain water flows through a reducing valve into a low pressure vessel whence it flows to the feedwater heater or heat sump.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15408761A | 1961-09-05 | 1961-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1011405A true GB1011405A (en) | 1965-12-01 |
Family
ID=22549952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3383462A Expired GB1011405A (en) | 1961-09-05 | 1962-09-04 | Improvements in a control system for a steam generator |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1011405A (en) |
-
1962
- 1962-09-04 GB GB3383462A patent/GB1011405A/en not_active Expired
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