ES297959A1 - Wall arrangement for vapor generator - Google Patents
Wall arrangement for vapor generatorInfo
- Publication number
- ES297959A1 ES297959A1 ES0297959A ES297959A ES297959A1 ES 297959 A1 ES297959 A1 ES 297959A1 ES 0297959 A ES0297959 A ES 0297959A ES 297959 A ES297959 A ES 297959A ES 297959 A1 ES297959 A1 ES 297959A1
- Authority
- ES
- Spain
- Prior art keywords
- gas pass
- furnace
- tubes
- wall
- header
- 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
- F22B29/00—Steam boilers of forced-flow type
- F22B29/06—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes
- F22B29/067—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes operating at critical or supercritical pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B29/00—Steam boilers of forced-flow type
- F22B29/06—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes
- F22B29/061—Construction of tube walls
- F22B29/062—Construction of tube walls involving vertically-disposed water tubes
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)
Abstract
A forced - flow once - through supercritical vapour generator comprises an elongated furnace from which extends a gas pass having side walls parallel to those of the furnace, the walls of the furnace and the gas pass are lined with tubes extending longitudinally and integrally joined together throughout the length of each wall and at the junctions between furnace and gas pass walls, the tubes being connected such that working fluid passes in parallel and in the same direction first through the furnace tubes and then through the gas pass tubes with a recirculation circuit increasing the flow through all the tubes at least at or below a predetermined load. As shown the generator comprises a vertical furnace 10 partitioned by a centre tube wall 16 extending between headers 42, 46 into two chambers each of which may be fired separately, e.g. by tangentially arranged burners 13, 15. Working fluid passes up through the centre wall tubes and then through the furnace and gas pass tubes. Horizontal and vertical portions 26, 28 of a gas pass 24 extend from the furnace, all are of rectangular cross-section, the side walls of the pass being coplanar with those of the furnace. The wall tubes are welded together between webs 66 to form imperforate metallic lining walls for the furnace and gas pass, the width of the web being greater in parts of the gas pass than in the furnace. The tubes of the gas pass may have diametrically opposed rectangular fins, those of adjacent tubes being welded together and the gas pass cased for fluid tightness. The furnace tube walls extend from bottom headers 50 below each furnace outer wall, side walls terminating in upper headers (not shown) connected to header 54, the front wall extending forward to cover part of the gas pass roof and then leading to header 54 and the rear wall extending forward to cover approximately half of the gas pass floor then upward and out of alignment across the gas pass and finally extending back to line the gas pass roof before terminating in header 54. The front tube wall of the vertical gas pass is similarly bent to cover the remaining floor and roof of the gas pass. The front, rear and side walls of the vertical gas pass extend between headers 62 and 70a, the side walls being connected to an intermediate header. The side walls of the horizontal pass extend between inlet header 60 and the intermediate header. Economizer, superheater and reheater sections are located in the gas pass and fluid passes from the economizer 32 through the centre tube wall 16, the outer furnace tube walls and then in the same direction and in parallel through all of the gas pass tube walls before entering the superheater sections. Recirculation through all of the tubes is maintained by a pump 40 connecting header 70a with the inlet header 42 of the centre tube wall.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US267516A US3172396A (en) | 1963-03-25 | 1963-03-25 | Wall arrangement for vapor generator |
Publications (1)
Publication Number | Publication Date |
---|---|
ES297959A1 true ES297959A1 (en) | 1964-09-01 |
Family
ID=23019116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0297959A Expired ES297959A1 (en) | 1963-03-25 | 1964-03-24 | Wall arrangement for vapor generator |
Country Status (8)
Country | Link |
---|---|
US (1) | US3172396A (en) |
BE (1) | BE645708A (en) |
CH (1) | CH438372A (en) |
DE (1) | DE1275072B (en) |
ES (1) | ES297959A1 (en) |
FR (1) | FR1386152A (en) |
GB (1) | GB1022838A (en) |
NL (2) | NL6403202A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3397679A (en) * | 1966-12-20 | 1968-08-20 | Combustion Eng | Through-flow steam generator circuit |
US3872836A (en) * | 1973-09-18 | 1975-03-25 | Foster Wheeler Corp | Coal-fired generator of medium to large capacity |
CH642155A5 (en) * | 1979-08-22 | 1984-03-30 | Sulzer Ag | STEAM GENERATOR WITH PARTITION BETWEEN TWO COMBUSTION CHAMBERS. |
EP0349834B1 (en) * | 1988-07-04 | 1996-04-17 | Siemens Aktiengesellschaft | Once-through steam generator |
DE102013215456A1 (en) * | 2013-08-06 | 2015-02-12 | Siemens Aktiengesellschaft | Through steam generator |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2840054A (en) * | 1951-10-08 | 1958-06-24 | Babcock & Wilcox Co | Power generating and superheating method, and apparatus therefor |
BE564616A (en) * | 1957-02-07 | |||
US3003482A (en) * | 1958-04-29 | 1961-10-10 | Babcock & Wilcox Co | Integral furnace-vapor generator |
US2962005A (en) * | 1958-05-16 | 1960-11-29 | Babcock & Wilcox Co | Forced flow vapor generating unit |
US2987052A (en) * | 1958-09-29 | 1961-06-06 | Comb Engineers Inc | Wall construction for pressurized furnace |
-
0
- NL NL130376D patent/NL130376C/xx active
-
1963
- 1963-03-25 US US267516A patent/US3172396A/en not_active Expired - Lifetime
-
1964
- 1964-03-19 GB GB11767/64A patent/GB1022838A/en not_active Expired
- 1964-03-23 CH CH373564A patent/CH438372A/en unknown
- 1964-03-23 DE DEC32477A patent/DE1275072B/en not_active Withdrawn
- 1964-03-24 ES ES0297959A patent/ES297959A1/en not_active Expired
- 1964-03-24 FR FR968498A patent/FR1386152A/en not_active Expired
- 1964-03-25 BE BE645708A patent/BE645708A/xx unknown
- 1964-03-25 NL NL6403202A patent/NL6403202A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
FR1386152A (en) | 1965-01-15 |
NL6403202A (en) | 1964-09-28 |
DE1275072B (en) | 1968-08-14 |
CH438372A (en) | 1967-06-30 |
NL130376C (en) | |
GB1022838A (en) | 1966-03-16 |
BE645708A (en) | 1964-09-25 |
US3172396A (en) | 1965-03-09 |
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