GB845342A - Prevention of harmful effects of steam decomposition in steam generating plants - Google Patents
Prevention of harmful effects of steam decomposition in steam generating plantsInfo
- Publication number
- GB845342A GB845342A GB34725/58A GB3472558A GB845342A GB 845342 A GB845342 A GB 845342A GB 34725/58 A GB34725/58 A GB 34725/58A GB 3472558 A GB3472558 A GB 3472558A GB 845342 A GB845342 A GB 845342A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steam
- hydrogen
- inlet
- boiler
- hot well
- 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
- 238000000354 decomposition reaction Methods 0.000 title abstract 2
- 230000009931 harmful effect Effects 0.000 title 1
- 230000002265 prevention Effects 0.000 title 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 6
- 239000001257 hydrogen Substances 0.000 abstract 6
- 229910052739 hydrogen Inorganic materials 0.000 abstract 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 230000007797 corrosion Effects 0.000 abstract 2
- 238000005260 corrosion Methods 0.000 abstract 2
- 238000001704 evaporation Methods 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000007872 degassing Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000003303 reheating Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
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
- F22D11/00—Feed-water supply not provided for in other main groups
- F22D11/006—Arrangements of feedwater cleaning with a boiler
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K21/00—Steam engine plants not otherwise provided for
- F01K21/06—Treating live steam, other than thermodynamically, e.g. for fighting deposits in engine
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
845,342. Preventing corrosion. SULZER FRERES S. A. Oct. 29, 1958 [Feb. 4, 1958], No. 34725/58. Class 123(1) [Also in Group XIII] In a steam power plant including a boiler generating steam at high pressure and temperature, especially a supercritical boiler, oxygen corrosion of pipelines, valves, turbines, &c., due to steam decomposition is reduced or prevented by artificially increasing the hydrogen content of the working medium. In the plant shown a once-through boiler 1 having a preheater 2, evaporating section 3 and superheater 4 supplies steam to a H.P. turbine 6. After reheating at 8, the steam flows through an L.P. turbine 9 and exhausts into a condenser 10. Condensate flows through a degasser 12 into a hot well 13. Feedwater is drawn from the hot well through a preheater 15 by a pump 16 and fed to the boiler. A storage vessel 17 for hydrogen is connected to a valved distribution line 18 whence pipes 20, 21, 24, 26, 28, 30, 32 lead respectively to the inlet of the heater 15, the inlet and outlet of the pump 16, the inlet and outlet of the evaporating section 3, the inlet of the reheater and the hot well. In general hydrogen is supplied to only one of the points in the water or steam flow, for example, after the main feed pump, the amount being regulated according to the hydrogen content of the feed water to maintain a predetermined concentration. In the degassing device 12 the condensate is partially degassed by physical or chemical means so that all of the dissolved oxygen and sufficient of the dissolved hydrogen to leave the required amount in the condensate passing to the hot well are removed, only very small amounts of hydrogen then being required to be added artificially.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH845342X | 1958-02-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB845342A true GB845342A (en) | 1960-08-17 |
Family
ID=4541758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34725/58A Expired GB845342A (en) | 1958-02-04 | 1958-10-29 | Prevention of harmful effects of steam decomposition in steam generating plants |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB845342A (en) |
-
1958
- 1958-10-29 GB GB34725/58A patent/GB845342A/en not_active Expired
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