CH156669A - High pressure steam generation system. - Google Patents
High pressure steam generation system.Info
- Publication number
- CH156669A CH156669A CH156669DA CH156669A CH 156669 A CH156669 A CH 156669A CH 156669D A CH156669D A CH 156669DA CH 156669 A CH156669 A CH 156669A
- Authority
- CH
- Switzerland
- Prior art keywords
- high pressure
- generation system
- steam generation
- pressure steam
- boiler
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/10—Water tubes; Accessories therefor
- F22B37/12—Forms of water tubes, e.g. of varying cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
Dampferzeugungsanlage für hohen Druck. Die Erfindung betrifft eine Dampferzeu- gungsanlage für hohen Druck nach dem Pa tentanspruch des Hauptpatentes mit Siede rohren, die am obern Ende weiter sind als am untern. Bisher sind solche Rohre auf ihrer ganzen Länge gleich dick ausgeführt worden, wobei die Beanspruchung an der Stelle .des grössten Rohrdurchmessers für die Festlegung der Wandstärke bestimmend war.
Die Wand stärke solcher Rohre ist daher auf dem gröss ten Teil ihrer Länge zu stark bemessen, was den Preis und das Gewicht des Kessels un nötigerweise erhöht; zudem können im untern Rohrteil. gefährliche Spannungen auftreten, weil infolge der zu grossen Wandstärke Wärmestauungen stattfinden.
Zwecks Behebung dieses Übelstandes nimmt gemäss der Erfindung die Wandstärke der Siederohre von oben nach unten derart ab, dass die Wandung auf der ganzen Rohr länge im wesentlichen gleich beansprucht ist.
Auf der beiliegenden Zeichnung ist je ein Siederohr von zwei Ausführungsbeispielen des Erfindungsgegenstandes veranschaulicht, und. zwar zeigt Fig. 1 einen senkrechten Längsschnitt durch ein sich von unten nach oben konisch erweiterndes Siederohr, wobei der Einfachheit halber die obern und untern Anschlussstücke, die meistens angeschweisst sind, weggelassen sind; Fig. 2 zeigt einen entsprechenden Schnitt durch ein Siederohr, das sich von unten nach oben stufenförmig erweitert, wobei die An schlussstücke ebenfalls weggelassen sind.
Bei beiden Siederohren 1 nimmt die Wandstärke derselben von oben nach unten ab, und zwar derart, dass die Wandung auf der ganzen Rohrlänge im wesentlichen gleich beansprucht ist.
High pressure steam generation system. The invention relates to a steam generation system for high pressure according to the patent claim of the main patent with boiling tubes that are wider at the top than at the bottom. So far, such pipes have been made the same thickness over their entire length, with the stress at the point .the largest pipe diameter was determining the wall thickness.
The wall thickness of such pipes is therefore too strong over the largest part of their length, which increases the price and weight of the boiler un necessarily; in addition, in the lower pipe part. Dangerous tensions occur because the excessive wall thickness causes heat build-up.
In order to remedy this inconvenience, according to the invention, the wall thickness of the boiler pipes decreases from top to bottom in such a way that the wall is stressed essentially equally over the entire length of the pipe.
In the accompanying drawing, a boiler tube of two embodiments of the subject invention is illustrated, and. 1 shows a vertical longitudinal section through a boiler pipe which widens conically from bottom to top, the upper and lower connection pieces, which are mostly welded on, being omitted for the sake of simplicity; Fig. 2 shows a corresponding section through a boiler pipe, which expands in steps from bottom to top, the connection pieces are also omitted.
In the case of both boiler tubes 1, the wall thickness of the same decreases from top to bottom, in such a way that the wall is stressed essentially equally over the entire length of the tube.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH156669T | 1931-05-11 | ||
CH132415T | 1933-03-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH156669A true CH156669A (en) | 1932-08-15 |
Family
ID=25711872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH156669D CH156669A (en) | 1931-05-11 | 1931-05-11 | High pressure steam generation system. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH156669A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1145183B (en) * | 1960-06-25 | 1963-03-14 | Schmidt Sche Heissdampf | Waste heat boiler built from double pipe registers with pinned heating pipes with high heating surface load |
WO2012028512A3 (en) * | 2010-09-03 | 2012-06-21 | Siemens Aktiengesellschaft | Solar-thermal once-through steam generator for direct evaporation, in particular in a solar-tower power plant |
WO2011091885A3 (en) * | 2010-02-01 | 2012-06-28 | Siemens Aktiengesellschaft | Suppression of static and dynamic instabilities in forced flow steam generators in solar thermal plants by expanding the heating surface pipes |
EP2798269A1 (en) * | 2011-12-21 | 2014-11-05 | Alstom Technology Ltd | Shape optimized headers and methods of manufacture thereof |
-
1931
- 1931-05-11 CH CH156669D patent/CH156669A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1145183B (en) * | 1960-06-25 | 1963-03-14 | Schmidt Sche Heissdampf | Waste heat boiler built from double pipe registers with pinned heating pipes with high heating surface load |
WO2011091885A3 (en) * | 2010-02-01 | 2012-06-28 | Siemens Aktiengesellschaft | Suppression of static and dynamic instabilities in forced flow steam generators in solar thermal plants by expanding the heating surface pipes |
WO2012028512A3 (en) * | 2010-09-03 | 2012-06-21 | Siemens Aktiengesellschaft | Solar-thermal once-through steam generator for direct evaporation, in particular in a solar-tower power plant |
EP2798269A1 (en) * | 2011-12-21 | 2014-11-05 | Alstom Technology Ltd | Shape optimized headers and methods of manufacture thereof |
JP2015507164A (en) * | 2011-12-21 | 2015-03-05 | アルストム テクノロジー リミテッドALSTOM Technology Ltd | Shape optimized header and manufacturing method thereof |
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