EP3583355A1 - Wasserrückführung in vertikalen zwangdurchlaufdampferzeugern - Google Patents
Wasserrückführung in vertikalen zwangdurchlaufdampferzeugernInfo
- Publication number
- EP3583355A1 EP3583355A1 EP18715494.3A EP18715494A EP3583355A1 EP 3583355 A1 EP3583355 A1 EP 3583355A1 EP 18715494 A EP18715494 A EP 18715494A EP 3583355 A1 EP3583355 A1 EP 3583355A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- working fluid
- separator
- evaporator
- bottle
- steam generator
- 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.)
- Granted
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
- F22B29/12—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 with superimposed recirculation during starting and low-load periods, e.g. composite boilers
-
- 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
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
- F22B35/007—Control systems for waste heat boilers
-
- 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
- F22B35/10—Control systems for steam boilers for steam boilers of forced-flow type of once-through type
-
- 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
- F22B35/10—Control systems for steam boilers for steam boilers of forced-flow type of once-through type
- F22B35/102—Control systems for steam boilers for steam boilers of forced-flow type of once-through type operating with fixed point of final state of complete evaporation, e.g. in a steam-water separator
-
- 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
-
- 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
- F22B37/26—Steam-separating arrangements
-
- 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
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/003—Feed-water heater systems
Definitions
- the invention relates to a method for starting up a vertical once-through steam generator in a waste heat steam ⁇ generator and a device for starting a vertical forced once-through steam generator in a heat recovery steam generator.
- Heat recovery steam generators with forced circulation evaporators are known as so-called horizontal (with horizontal flue gas path) and vertical (with vertical flue gas path) BENSON heat recovery steam generator.
- the embodiment with vertical flue gas path has cost advantages over the horizontal construction ⁇ form.
- the object of the invention is therefore to provide a method for starting a vertical once-through steam generator, ie with a vertical flue gas path, in a heat recovery steam generator, in which the water consumption is reduced compared to the prior art.
- Another object of the inven ⁇ tion is to provide a corresponding device for starting ei ⁇ nes vertical forced once-through steam generator in one
- the invention solves the to a process for starting up a vertical forced-flow steam generator directed in a waste heat ⁇ vapor generating task by providing that in such a method for starting up a vertical forced-flow steam generator in a heat recovery steam generator, wherein the once-through steam generator feed water is supplied beitsfluid as Ar, and There first flows through a feedwater ⁇ servor Anlagenr and then an evaporator and thereby at least partially evaporated, wherein the partially evaporated working fluid is fed to a Wasserabscheidesystem, in separating the non-vaporized working fluid vaporized working fluid and collected, at least a portion of the collected in the water separating unvaporized Ar- beitsfluids the evaporator is supplied to the geodetically and a certain amount of accumulated non-vaporized working fluid a remaining part automatically from the water separator ⁇ system is discharged.
- the Wasserabscheidesystem includes a separator and a bottle and the unevaporated working fluid is recycled from the separator, as this keeps the cost of a geodesic feedback compared to ei ⁇ ner execution without separation of separator and bottle low.
- Feedwater can be supplied as working fluid via a feedwater feed line, an evaporator which is connected downstream of the feedwater pre-heater in the direction of flow of the working fluid and through which the working fluid can flow and at least partially vaporize it, a water separation system at the outlet of the evaporator, the
- the Wasserabscheidesystem comprises a separator and a bottle, which are ⁇ out as separate containers, with a return from the separator opens into a binding location of the evaporator and a Hästoff- outlet for the return line in the separator so far above the binding site is that a geodesic return of the non-evaporated working fluid via the return line in the evaporator is possible, further wherein a drain line branches off from the separator and opens into the bottle and so in
- Wasserabscheidesystem is arranged so that it is at least partially disposed above the return line.
- a shut-off valve is arranged in the return line, so that at the end of the water discharge, the return line to the evaporator can be closed.
- the drain line comprises a tube projecting through the bottom of the separator into the separator.
- a first drain line is arranged at a lower end of the separator and opens into the bottle that as complete as possible Ent ⁇ emptying of the separator is possible. It may also be advantageous if a portion of the drain line between separator and bottle siphon-like keptbil ⁇ det and is provided at its lowest point with a second discharge line, which opens into the bottle.
- Figure 2 shows a device for starting a vertical
- Figure 3 shows a device for starting a vertical
- FIG. 4 shows a device for starting a vertical
- the drain line comprises a arranged between the separator and bottle siphon and
- Figure 5 shows a device for starting a vertical
- the lower end 17 of the separator 4 is well above a binding point 10 in the evaporator 2, for example, above the inlet ⁇ collector 20.
- a geodesic flow from the separator 4 to the evaporator 2 is thereby possible.
- the sequence is from Ar- beitsstoffauslass 11 via the return line 9 and the shut-off valve therein 6 to the integration point 10.
- FER is ner in the embodiment of Figure 1, a non-return ⁇ flap 13 disposed in the return line. 9
- FIG. 2 shows a less advantageous solution to the problem.
- separator 4 and water bottle 5 of the water separation system 3 can remain in a common vessel.
- the return of the non-evaporated separated working fluid into the evaporator 2 is again via the return line 9 and the shut-off valve 6 and the check valve 13.
- the water level rises first in the water bottle 5 to the level of An ⁇ conclusion of the return line 9 at.
- water can run back into the evaporator 2.
- the shut-off valve 6 is closed in the return line 9 to the inlet header 20 of the evaporator 2.
- the efficiency of this solution described in Figure 2 is less than that of the embodiment of Figure 1, as a return to the evaporator 2 is only possible when the water bottle 5 is largely filled.
- FIG. 3 like the following embodiments, again has a water separation system 3, in which separator 4 and bottle 5 are separated, and differs from the embodiment of FIG. 1 by the formation of the discharge line 12.
- the overflow to the bottle 5 takes place here not on the outer wall of the separator 4, son ⁇ countries through a through the bottom 14 of the separator 4 carried out inserted tube 15.
- the length of this tube 15 determines the self-adjusting level in the separator. 4
- the overflow to the bottle 5 does not take place here via the outer ⁇ wall of the separator 4 or via a pipe 15, but via a disposed between the separator 4 and 5 bottle siphon 22.
- the height of this siphon 22 determines the adjusting level in the separator 4.
- a portion of the drain line 12 between the separator 4 and bottle 5 siphon-like and provided at its lowest point 18 with a second discharge line 19, which opens into the bottle 5.
- Figure 5 shows a device for starting a vertical forced once-through steam generator with deviating from the previous figures return line 9 and drain line 12.
- a valve assembly 23 is arranged with the function of a three-way valve, from which a line 24 into the bottle 5 branches off, so that both, recirculation and drain to the bottle 5, done here via a three-way control valve 23.
- the position of this three-way control valve 23 is controlled by the level in the separator 5.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017205382.8A DE102017205382A1 (de) | 2017-03-30 | 2017-03-30 | Wasserrückführung in vertikalen Zwangdurchlaufdampferzeugern |
| PCT/EP2018/056199 WO2018177738A1 (de) | 2017-03-30 | 2018-03-13 | Wasserrückführung in vertikalen zwangdurchlaufdampferzeugern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3583355A1 true EP3583355A1 (de) | 2019-12-25 |
| EP3583355B1 EP3583355B1 (de) | 2021-05-19 |
Family
ID=61899161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18715494.3A Active EP3583355B1 (de) | 2017-03-30 | 2018-03-13 | Wasserrückführung in vertikalen zwangdurchlaufdampferzeugern |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US11692703B2 (de) |
| EP (1) | EP3583355B1 (de) |
| JP (1) | JP6906627B2 (de) |
| KR (1) | KR102315403B1 (de) |
| CN (1) | CN110476014B (de) |
| CA (1) | CA3058356C (de) |
| DE (1) | DE102017205382A1 (de) |
| ES (1) | ES2882191T3 (de) |
| WO (1) | WO2018177738A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3739176A1 (de) * | 2019-05-15 | 2020-11-18 | Siemens Aktiengesellschaft | Kraftwerk und wasserreinigungsverfahren für einen nichtrezirkulierten wasser-/dampfkreislauf einer kraftwerksanlage |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3532453A (en) * | 1968-07-02 | 1970-10-06 | Foster Wheeler Corp | Start-up system for once-through boiler |
| JPS4818082U (de) | 1971-07-10 | 1973-03-01 | ||
| US4129140A (en) * | 1977-05-09 | 1978-12-12 | Carlin Richard D | Automatic flushing device |
| DE3236979A1 (de) | 1982-10-06 | 1984-04-12 | Deutsche Babcock Werke AG, 4200 Oberhausen | Zwangsdurchlaufdampferzeuger und verfahren zu seiner inbetriebnahme |
| JPS59209628A (ja) * | 1983-05-13 | 1984-11-28 | Kogata Gas Reibou Gijutsu Kenkyu Kumiai | ドレン分離器 |
| JPS61228201A (ja) * | 1985-03-30 | 1986-10-11 | 清水建設株式会社 | 高性能セパレ−タ |
| TW212826B (de) * | 1991-11-28 | 1993-09-11 | Sulzer Ag | |
| DE4303613C2 (de) | 1993-02-09 | 1998-12-17 | Steinmueller Gmbh L & C | Verfahren zur Erzeugung von Dampf in einem Zwangsdurchlaufdampferzeuger |
| DE19504308C1 (de) * | 1995-02-09 | 1996-08-08 | Siemens Ag | Verfahren und Vorrichtung zum Anfahren eines Durchlaufdampferzeugers |
| DK0812407T3 (da) * | 1995-09-08 | 2000-10-23 | Bbp Energy Gmbh | Fremgangsmåde og system til start af en gennemstrømningsdampgenerator |
| US5713311A (en) * | 1996-02-15 | 1998-02-03 | Foster Wheeler Energy International, Inc. | Hybrid steam generating system and method |
| DE19702133A1 (de) * | 1997-01-22 | 1997-12-11 | Siemens Ag | Durchlaufdampferzeuger und Verfahren zum Betreiben eines Durchlaufdampferzeugers |
| KR100439080B1 (ko) * | 1997-06-30 | 2004-07-05 | 지멘스 악티엔게젤샤프트 | 폐열 증기 발생기 |
| JP4847213B2 (ja) * | 2006-05-29 | 2011-12-28 | バブコック日立株式会社 | 貫流型排熱回収ボイラ |
| DE102011006390A1 (de) * | 2011-03-30 | 2012-10-04 | Siemens Aktiengesellschaft | Verfahren zum Betreiben eines Durchlaufdampferzeugers und zur Durchführung des Verfahrens ausgelegter Dampferzeuger |
-
2017
- 2017-03-30 DE DE102017205382.8A patent/DE102017205382A1/de not_active Ceased
-
2018
- 2018-03-13 EP EP18715494.3A patent/EP3583355B1/de active Active
- 2018-03-13 KR KR1020197031580A patent/KR102315403B1/ko active Active
- 2018-03-13 WO PCT/EP2018/056199 patent/WO2018177738A1/de not_active Ceased
- 2018-03-13 CN CN201880022844.2A patent/CN110476014B/zh active Active
- 2018-03-13 ES ES18715494T patent/ES2882191T3/es active Active
- 2018-03-13 CA CA3058356A patent/CA3058356C/en active Active
- 2018-03-13 JP JP2019553203A patent/JP6906627B2/ja active Active
- 2018-03-13 US US16/492,140 patent/US11692703B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110476014A (zh) | 2019-11-19 |
| KR102315403B1 (ko) | 2021-10-21 |
| EP3583355B1 (de) | 2021-05-19 |
| JP6906627B2 (ja) | 2021-07-21 |
| CA3058356A1 (en) | 2018-10-04 |
| JP2020512522A (ja) | 2020-04-23 |
| KR20190128719A (ko) | 2019-11-18 |
| ES2882191T3 (es) | 2021-12-01 |
| US20210131312A1 (en) | 2021-05-06 |
| CA3058356C (en) | 2021-06-22 |
| WO2018177738A1 (de) | 2018-10-04 |
| CN110476014B (zh) | 2021-08-03 |
| DE102017205382A1 (de) | 2018-10-04 |
| US11692703B2 (en) | 2023-07-04 |
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