US20190226675A1 - Steam generation system - Google Patents

Steam generation system Download PDF

Info

Publication number
US20190226675A1
US20190226675A1 US16/316,240 US201716316240A US2019226675A1 US 20190226675 A1 US20190226675 A1 US 20190226675A1 US 201716316240 A US201716316240 A US 201716316240A US 2019226675 A1 US2019226675 A1 US 2019226675A1
Authority
US
United States
Prior art keywords
steam
steam generator
generating system
drum
water jacket
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.)
Abandoned
Application number
US16/316,240
Other languages
English (en)
Inventor
Antonio Coscia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Publication of US20190226675A1 publication Critical patent/US20190226675A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • F22B37/14—Supply mains, e.g. rising mains, down-comers, in connection with water tubes
    • 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
    • F22B37/34—Adaptations of boilers for promoting water circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B9/00—Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body
    • F22B9/10—Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body the boiler body being disposed substantially horizontally, e.g. at the side of the combustion chamber

Definitions

  • the invention relates to a steam generating system comprising
  • the invention furthermore relates to use of this steam generating system.
  • Steam generating systems of the type described at the outset are known from the prior art, e.g. from International Application WO 2011/104328 A2.
  • the steam generator is designed as a horizontally arranged, cylindrical shell-and-tube heat exchanger.
  • a shell-and-tube heat exchanger of this kind and the use thereof to cool hot synthesis gas is described by European Patent EP 2312252 B1, for example.
  • a pre-heater which is often likewise designed as a shell-and-tube heat exchanger, can be arranged downstream of the steam generator, as regards the heat transfer medium, and a superheater can be arranged upstream.
  • a “steam drum”, often likewise a horizontally arranged pressure vessel, is installed above the steam generator.
  • the steam drum and the steam generator are connected to one another by riser pipes and downpipes. This enables the water/steam mixture to be circulated, thereby enabling the steam to be discharged efficiently from the steam generator and making possible more effective heat transfer at the surface of the heating tubes of the steam generator. If the steam drum can be positioned at a sufficient distance above the steam generator, this circulation can operate as natural circulation. If there is not sufficient space available for this, pumps must assist circulation. The term “forced circulation” is then used.
  • the laterally attached supports for the downpipes furthermore induce forces on the jacket of the steam generator, namely static forces due to the deadweight of the downpipes and due to thermal expansion forces, as well as dynamic forces due to wind and earthquake loads.
  • forces on the jacket of the steam generator namely static forces due to the deadweight of the downpipes and due to thermal expansion forces, as well as dynamic forces due to wind and earthquake loads.
  • a steam generator having a water jacket and at least one heating tube extending therein for the passage of a heat transfer medium
  • the steam generating system according to the invention makes it possible to position the steam generator close to the ground since the downpipes no longer form the lowest point of the system. This simplifies the design of the upstream and downstream system components.
  • a preferred embodiment of the invention is characterized in that the steam generator and the steam drum are arranged in such a way relative to one another, and the riser pipe and downpipe are designed in such a way that the water to be evaporated can be moved between the water jacket of the steam generator and the steam drum by natural circulation. This eliminates the installation of pumps and the associated outlay on maintenance and repair as well as investment costs.
  • An alternative embodiment of the invention is characterized in that at least one pump is installed to assist water circulation between the water jacket of the steam generator and the steam drum. Even if there is no space for an adequate distance between the steam drum and the steam generator, sufficient water circulation can be achieved in the steam generator in this case.
  • Another preferred embodiment of the invention is characterized in that the steam generator and the steam drum are designed as horizontally arranged, cylindrical pressure vessels.
  • the cylindrical shape with correspondingly arched ends has long proven its worth in the construction of apparatus and can be produced at low cost.
  • the horizontal arrangement allows a lower overall height and hence good accessibility of the system.
  • Another preferred embodiment of the invention is characterized in that the riser pipes and the downpipes enter the water jacket of the steam generator in the 0 o'clock position and enter the steam drum jacket in the 6 o'clock position.
  • the pipes can also be used as structural elements for supporting the steam drum.
  • Another preferred embodiment of the invention is characterized in that the steam generator is designed as a shell-and-tube evaporator. This type of construction has long proven its worth in the construction of apparatus and can be produced at low cost.
  • Another preferred embodiment of the invention is characterized in that the downpipe is passed around the heating tube or heating tubes within the water jacket of the steam generator, as far as the steam generator volume region situated thereunder.
  • Another preferred embodiment of the invention is characterized in that the downpipe is passed through the heating tube bundle within the boiler.
  • the downpipe or downpipes can run in a straight line, thereby keeping the flow resistance in the pipe low.
  • the invention furthermore also relates to the use of a steam generating system according to the invention, consisting in that the steam generating system is arranged downstream of a steam reforming reactor and the synthesis gas emerging from the steam reforming reactor is used as a heat transfer medium in the steam generator of the steam generating system.
  • the steam reforming of hydrocarbons to give synthesis gas takes place with a high expenditure of energy and at high temperatures.
  • the synthesis gas produced in this process leaves the reactor at a temperature of over 800° C.
  • the synthesis gas is used as a heat transfer medium to operate a steam generating system according to the invention.
  • FIG. 1 shows a longitudinal section through a steam generating system according to the invention
  • FIG. 2 shows a cross section through a steam generating system according to the prior art
  • FIG. 3 a shows a first cross section through a steam generating system according to the invention
  • FIG. 3 b shows a second cross section through a steam generating system according to the invention.
  • FIG. 1 illustrates the steam generating system 1 , comprising the steam generator 2 and the steam drum 3 as principal components.
  • the steam generator 2 is designed as a shell-and-tube evaporator and is set up horizontally.
  • the hot synthesis gas 4 coming from a steam reforming reactor (not depicted) is introduced into the inlet chamber 5 of the steam generator 2 , is distributed there between the tubes 6 of the tube bundle 13 , flows onward into the outlet chamber 7 and leaves the steam generator 2 for further treatment or use (not shown).
  • the steam drum 3 is arranged above the steam generator 2 .
  • the boiler feedwater 8 to be evaporated is fed into said steam drum.
  • the water to be evaporated is circulated via the riser pipes 9 and the downpipes 10 in a natural circulation.
  • the steam/water mixture entering the steam drum 3 via the riser pipes 9 is separated there, the steam 11 is discharged for further use and the water is fed back into the steam generator via the downpipes 10 .
  • the downpipes enter the jacket 12 of the steam generator 2 in the 0 o'clock position and then run past the heating tubes of the tube bundle 6 within the jacket 12 as far as the lower volume region of the jacket 12 .
  • the downpipes end as low as possible in the jacket to avoid steam bubbles getting into the downpipe and to achieve as large as possible a static head, i.e. as large as possible a vertical distance between the lower and the upper end of the downpipe, thereby assisting natural circulation.
  • FIG. 2 shows a cross section through a steam generating system with the downpipes 10 ′ routed in accordance with the prior art.
  • the riser pipes have not been depicted, but, as in the example shown in FIG. 1 , they are once again arranged in the 0 o'clock position of the jacket 12 .
  • the downpipes 10 ′ are connected to the steam drum 3 in the 4 and in the 8 o'clock position, run externally around the steam generator 2 and likewise open in the steam generator jacket 12 in the 4 and the 8 o'clock position.
  • FIG. 3 a shows a cross section through a steam generating system 1 with the downpipe 10 routed in accordance with the invention.
  • the downpipe 10 is connected to the steam drum 3 in the 6 o'clock position and passes through the jacket 12 of the steam generator 2 in the 0 o'clock position. Within the jacket 12 , the downpipe 10 runs around the tube bundle 13 as far as the volume region of the water jacket 12 situated thereunder.
  • FIG. 3 b likewise shows a cross section through a steam generating system with the downpipe 10 routed in accordance with the invention.
  • the downpipe 10 is likewise connected to the steam drum 3 in the 6 o'clock position and passes through the jacket 12 of the steam generator 2 in the 0 o'clock position. Within the jacket 12 , the downpipe 10 passes through the tube bundle 13 to the volume region of the water jacket 12 situated thereunder.
  • the invention offers the possibility of embodying a steam generating system in a less expensive and more space-saving way, wherein the setup of the system can also be carried out more flexibly in relation to the upstream and downstream apparatus.
  • “Comprising” in a claim is an open transitional term which means the subsequently identified claim elements are a nonexclusive listing (i.e., anything else may be additionally included and remain within the scope of “comprising”). “Comprising” as used herein may be replaced by the more limited transitional terms “consisting essentially of” and “consisting of” unless otherwise indicated herein.
  • Providing in a claim is defined to mean furnishing, supplying, making available, or preparing something. The step may be performed by any actor in the absence of express language in the claim to the contrary.
  • Optional or optionally means that the subsequently described event or circumstances may or may not occur.
  • the description includes instances where the event or circumstance occurs and instances where it does not occur.
  • Ranges may be expressed herein as from about one particular value, and/or to about another particular value. When such a range is expressed, it is to be understood that another embodiment is from the one particular value and/or to the other particular value, along with all combinations within said range.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Detergent Compositions (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • External Artificial Organs (AREA)
US16/316,240 2016-07-08 2017-07-03 Steam generation system Abandoned US20190226675A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP16400027.5A EP3267100B1 (de) 2016-07-08 2016-07-08 Dampferzeugungsanlage
EP16400027.5 2016-07-08
PCT/EP2017/025193 WO2018007024A1 (en) 2016-07-08 2017-07-03 Steam generating system

Publications (1)

Publication Number Publication Date
US20190226675A1 true US20190226675A1 (en) 2019-07-25

Family

ID=56799385

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/316,240 Abandoned US20190226675A1 (en) 2016-07-08 2017-07-03 Steam generation system

Country Status (9)

Country Link
US (1) US20190226675A1 (ru)
EP (1) EP3267100B1 (ru)
KR (1) KR20190024974A (ru)
CN (2) CN107588414A (ru)
DE (1) DE102016120170A1 (ru)
EA (1) EA039024B1 (ru)
PL (1) PL3267100T3 (ru)
SG (1) SG11201811692PA (ru)
WO (1) WO2018007024A1 (ru)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3267100T3 (pl) * 2016-07-08 2021-10-25 L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Urządzenie wytwarzające parę

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463125A (en) * 1967-11-16 1969-08-26 James T Voorheis Horizontal boilers,apparatus in combination therewith and methods for heating same
US4074660A (en) * 1975-11-24 1978-02-21 The Lummus Company Waste heat recovery from high temperature reaction effluents
US4643747A (en) * 1984-08-09 1987-02-17 L. & C. Steinmuller Gmbh Reaction gas cooler for low-energy plants
US7784433B2 (en) * 2006-11-24 2010-08-31 Borsig Gmbh Heat exchanger for cooling reaction gas
US20130041049A1 (en) * 2010-04-30 2013-02-14 Compactgtl Plc Gas-to-Liquid Technology
US20130118419A1 (en) * 2009-06-24 2013-05-16 Balcke-Durr Gmbh Heat exchanger for steam generation for a solar thermal power plant

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE571207C (de) * 1929-05-04 1933-02-24 Otto Buehring Vorrichtung zum Erhoehen des Wasserumlaufs bei Verdampfern oder Dampfkesseln
DE1148239B (de) * 1957-06-27 1963-05-09 Andre Huet Dampfkessel, insbesondere fuer Schiffe, bestehend aus mehreren in einem gemein-samenBehaelter oder mehreren solchen parallel zueinander angeordneten lotrechten Rohren mit koaxialen Innenrohren
US7500999B2 (en) * 2004-09-01 2009-03-10 Praxair Technology, Inc. Catalytic reactor
EP2312252B1 (de) 2009-10-07 2013-03-20 Lurgi GmbH Abhitzekessel und Verfahren zur Abkühlung von Synthesegas
WO2011104328A2 (de) 2010-02-26 2011-09-01 Siemens Aktiengesellschaft Vorrichtung und verfahren zur erzeugen von überhitztem wasserdampf mittels solar-energie basierend auf dem naturumlauf-konzept sowie verwendung des überhitzten wasserdampfs
DE102010044939C5 (de) * 2010-09-10 2015-11-19 Thyssenkrupp Industrial Solutions Ag Verfahren und Vorrichtung zur Erzeugung von Prozessdampf und Kesselspeisewasserdampf in einem beheizbaren Reformierreaktor zur Herstellung von Synthesegas
PL3267100T3 (pl) * 2016-07-08 2021-10-25 L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Urządzenie wytwarzające parę

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463125A (en) * 1967-11-16 1969-08-26 James T Voorheis Horizontal boilers,apparatus in combination therewith and methods for heating same
US4074660A (en) * 1975-11-24 1978-02-21 The Lummus Company Waste heat recovery from high temperature reaction effluents
US4643747A (en) * 1984-08-09 1987-02-17 L. & C. Steinmuller Gmbh Reaction gas cooler for low-energy plants
US7784433B2 (en) * 2006-11-24 2010-08-31 Borsig Gmbh Heat exchanger for cooling reaction gas
US20130118419A1 (en) * 2009-06-24 2013-05-16 Balcke-Durr Gmbh Heat exchanger for steam generation for a solar thermal power plant
US20130041049A1 (en) * 2010-04-30 2013-02-14 Compactgtl Plc Gas-to-Liquid Technology

Also Published As

Publication number Publication date
WO2018007024A1 (en) 2018-01-11
SG11201811692PA (en) 2019-01-30
EP3267100A1 (de) 2018-01-10
EP3267100B1 (de) 2021-04-14
EA201990072A1 (ru) 2019-05-31
CN208139236U (zh) 2018-11-23
EA039024B1 (ru) 2021-11-23
CN107588414A (zh) 2018-01-16
PL3267100T3 (pl) 2021-10-25
KR20190024974A (ko) 2019-03-08
DE102016120170A1 (de) 2018-01-11

Similar Documents

Publication Publication Date Title
US10386120B2 (en) Shell and tube heat exchanger
US7270086B2 (en) Steam generator
CN102667338B (zh) 用于太阳能发电厂的产生蒸汽的热交换器
US20160222761A1 (en) Subsea Heat Exchangers For Offshore Hydrocarbon Production Operations
JP6542224B2 (ja) ２つの流体の間で熱交換するための熱交換器、液体金属及びガスでの当該熱交換器の使用並びに液体金属により冷却される高速中性子原子炉への利用
González-Gómez et al. Thermo-economic optimization of molten salt steam generators
US20190226675A1 (en) Steam generation system
EP1664650B1 (en) Apparatus and process for cooling hot gas
US5247991A (en) Heat exchanger unit for heat recovery steam generator
US11454452B2 (en) Heat exchanger for a molten salt steam generator in a concentrated solar power plant (III)
JP5733822B2 (ja) ボイラ
US8318102B2 (en) Process for increasing the efficiency of heat removal from a Fischer-Tropsch slurry reactor
CN107667271B (zh) 用于换热器系统的集管装置、换热器系统和加热流体的方法
KR101984361B1 (ko) 열 복구 스팀 발생기를 위한 열 교환 시스템 및 방법
EP3502608B1 (en) Heat exchanger for a molten salt steam generator in a concentrated solar power plant (iii)
CN105333761B (zh) 换热器管箱的集成结构
CN205373460U (zh) 正置立式三段式u形管高压加热器
Zorin et al. The new generation of high-pressure heaters for steam turbine units at nuclear power plants
Rechtman Economizers and feedwater heaters
JP2018534520A (ja) 工業製造プラントのための熱交換器の配置
AU2006225253A1 (en) Cooling exhaust gases from furnace
KR20190103334A (ko) 멀티레벨 가열용 코일 번들
ITMI20090746A1 (it) Caldaie
US2372675A (en) Heat exchange device
JP5733821B2 (ja) ボイラ

Legal Events

Date Code Title Description
STPP Information on status: patent application and granting procedure in general

Free format text: APPLICATION DISPATCHED FROM PREEXAM, NOT YET DOCKETED

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION