WO1999025956A1 - Procede pour faire fonctionner un moteur a vapeur par injection d'eau dans une chambre de travail chauffee - Google Patents

Procede pour faire fonctionner un moteur a vapeur par injection d'eau dans une chambre de travail chauffee Download PDF

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Publication number
WO1999025956A1
WO1999025956A1 PCT/DE1998/003318 DE9803318W WO9925956A1 WO 1999025956 A1 WO1999025956 A1 WO 1999025956A1 DE 9803318 W DE9803318 W DE 9803318W WO 9925956 A1 WO9925956 A1 WO 9925956A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
pressure
cylinder
injected
dead center
Prior art date
Application number
PCT/DE1998/003318
Other languages
German (de)
English (en)
Inventor
Gerhard Buschmann
Michael HÖTGER
Thomas Komischke
Original Assignee
Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr
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 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr filed Critical Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr
Publication of WO1999025956A1 publication Critical patent/WO1999025956A1/fr

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Classifications

    • 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
    • F01K21/02—Steam engine plants not otherwise provided for with steam-generation in engine-cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B29/00—Machines or engines with pertinent characteristics other than those provided for in preceding main groups
    • F01B29/08—Reciprocating-piston machines or engines not otherwise provided for
    • F01B29/10—Engines
    • F01B29/12—Steam engines

Definitions

  • the invention relates to a method for operating a steam engine with the injection of water into a heated work space according to the preamble of the main claim.
  • Generic steam engines are previously known from the documents DE-PS 828 988 and DE 27 43 584 A1 in whose cylinder-piston unit, after metered water injection, steam is generated with the supply of heat in a heated cylinder chamber.
  • the heat is supplied to the cylinder-piston element via cylinder ribs by means of an open burner on the cylinder head and on the cylinder in the stroke area of an insulated heat head which is arranged on the piston and is insulated towards the inside.
  • the heat is supplied via a heated pipe arrangement which is arranged in the cylinder head and the spaces between which form the compression space of the cylinder element.
  • the steam charge is expanded with the supply of heat from the cylinder head and the cylinder element.
  • the outlet for the expanding steam forms in the area of bottom dead center through the pistons released slots.
  • Pressure and temperature can be so high that the water is injected into the cylinder chamber in a supercritical, quasi-liquid vapor state.
  • the injected, quasi-liquid vapor evaporates with high compression in the upper cylinder area, the compressed residual charge of the previous work cycle is also heated, increasing the pressure
  • the work on the piston is carried out by the expansion of the charge in the cylinder, which consists of the water injected and then evaporated at this work cycle and the remaining charge
  • the invention has for its object to provide a working method for a steam engine with both high internal and external process heat supply, the operating parameters are adapted to mechanical engineering and material technology as well as low-pollution combustion conditions for heat generation This object is achieved by the process parameters mentioned in the characterizing part of the main claim.
  • the combination according to the invention of the application of supplying internal process heat by injecting supercritical water vapor in its quasi-liquid form and external process heat by supplying heat via the cylinder and cylinder head into the working cylinder permits rapid power modulation from work cycle to work cycle With a delay, the internal and external power supply rates can be changed for the same power, for example to optimize the overall efficiency of the machine
  • the method according to the invention is used for steam engines which are operated with the injection of water in the area of top dead center into a heated cylinder or work space.
  • the water is evaporated in the work space and the evaporated water is released in the area around bottom dead center Exhaust valves
  • the amount of water injected can be varied according to the set load.
  • water is injected as water vapor in the quasi-liquid, supercritical state at high admission pressure and high temperature into the cylinder chamber when the piston is in the area of top dead center against the pressure in the cylinder chamber still the external heat supply to the cylinder piston unit and thus to the work space and its charge.
  • the temperature in the compression space is thus high when passing through the area around top dead center and in the work space when relaxation begins r as the temperature of the vapor injected in the quasi-liquid state Residual filling and compression as well as the cylinder pressure in the TDC position of the piston and the compression temperature can be adjusted for the purpose of regulating the performance of the machine by means of a variable exhaust control
  • a temperature of up to 1000 ° C can be set in the heated compression and working chamber of the cylinder-piston unit when the piston is in the TDC position. This is possible if ceramic or carbon-containing materials are preferably used for the displacer on the piston
  • preheated water is demanded in a heated pressure storage circuit with such a high temperature and high pre-pressure that it is heated to a quasi-liquid, supercritical vapor state
  • the quasi-liquid vapor is injected from this pressure storage circuit into the cylinder space and from this charge, which is subsequently heated and expanded
  • the steam injected in the supercritical liquid state can be conditioned in the range of over 220.4 bar pressure and with temperatures above 374 ° C. In these areas of pressure and temperature, common metallic materials can be used for the necessary pressure accumulator or the high pressure generator.
  • the admission pressure and temperature in the heated pressure storage circuit for the steam injected in the quasi-liquid state can be regulated depending on the set output, the temperature state of the cylinder-piston unit, and the cylinder pressure before TDC.This means that less effort can be achieved for the heat supply and pressure generation in the operating range of part load

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

L'invention concerne un procédé permettant de faire fonctionner un moteur à vapeur par injection d'eau dans une chambre de travail chauffée, dans la zone du point mort haut, et par détente des charges ultérieures, dans la zone entourant le point mort haut, la quantité d'eau injectée pouvant être modifiée en fonction de la position de la charge. L'objectif de l'invention est de créer un procédé de travail avec une conduction de chaleur, chaleur qui résulte du processus, élevée aussi bien à l'intérieur qu'à l'extérieur, dont les paramètres sont adaptés aux données relatives à la mécanique et à la technique des matériaux, ainsi qu'aux conditions de combustion à faible pollution pour la production de chaleur. Cet objectif est atteint, selon l'invention, grâce à l'obtention des caractéristiques suivantes: l'eau est injectée, à l'état quasi liquide surchauffé, sous une pression initiale élevée et à une température élevée, dans la chambre de cylindre, avec une pression dépassant celle régnant dans ladite chambre de cylindre, lorsque le piston se trouve à proximité du point mort haut. La température de l'unité cylindre-piston est, dans la zone du point mort haut et au début de la détente, supérieure à celle de l'eau à l'état surchauffé quasi liquide.
PCT/DE1998/003318 1997-11-14 1998-11-12 Procede pour faire fonctionner un moteur a vapeur par injection d'eau dans une chambre de travail chauffee WO1999025956A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19750360.8 1997-11-14
DE1997150360 DE19750360A1 (de) 1997-11-14 1997-11-14 Verfahren zum Betreiben einer Dampfkraftmaschine mit Einspritzung von Wasser in einen beheizten Arbeitsraum

Publications (1)

Publication Number Publication Date
WO1999025956A1 true WO1999025956A1 (fr) 1999-05-27

Family

ID=7848651

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1998/003318 WO1999025956A1 (fr) 1997-11-14 1998-11-12 Procede pour faire fonctionner un moteur a vapeur par injection d'eau dans une chambre de travail chauffee

Country Status (2)

Country Link
DE (1) DE19750360A1 (fr)
WO (1) WO1999025956A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010105288A1 (fr) * 2009-03-15 2010-09-23 Ivec Pty Ltd Moteur thermique utilisant une source extérieure de chaleur

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007104087A1 (fr) * 2006-03-10 2007-09-20 David Ernest Ide Moteur à vapeur
AU2007225001B2 (en) * 2006-03-10 2012-03-22 Bluegreen Power Technologies Pty Ltd A steam driven engine
US10018078B2 (en) * 2009-05-21 2018-07-10 Richard E. Aho Apparatus for recovering energy from water
DE102013013807A1 (de) * 2013-07-23 2015-01-29 Fikret Güloglu Verdampfungs-Hubkolbenmotor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE689961C (de) * 1937-08-06 1940-04-10 Kloeckner Humboldt Deutz Akt G Dampfkraftmaschine mit Dampfbildung im Zylinder
CH243903A (de) * 1944-09-23 1946-08-15 Treiber Hermann Verfahren und Einrichtung zum Betriebe von Dampfkraftmaschinen.
DE828988C (de) 1949-11-01 1952-01-21 Siegfried Grantz Dr Ing Dampfkraftmaschine mit Dampferzeugung im Zylinder
DE1909007A1 (de) * 1969-02-22 1970-08-27 Augsburg Nuernberg Ag Zweignie Verfahren und Einrichtung zum Betreiben einer Kolben-Waermekraftmaschine
US4077214A (en) * 1976-08-16 1978-03-07 Burke Jr Jerry Allen Condensing vapor heat engine with constant volume superheating and evaporating
DE2743584A1 (de) 1977-09-28 1979-04-05 Cycle Ass Waermekraftmaschine
DE3049024A1 (de) 1980-08-18 1982-03-25 Thermal Systems Ltd., Grand Cayman, Cayman Islands, Britisch Westindien "verbrennungsmotor mit hin und hergehendem kolben und mit aeusserer verbrennung"

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE689961C (de) * 1937-08-06 1940-04-10 Kloeckner Humboldt Deutz Akt G Dampfkraftmaschine mit Dampfbildung im Zylinder
CH243903A (de) * 1944-09-23 1946-08-15 Treiber Hermann Verfahren und Einrichtung zum Betriebe von Dampfkraftmaschinen.
DE828988C (de) 1949-11-01 1952-01-21 Siegfried Grantz Dr Ing Dampfkraftmaschine mit Dampferzeugung im Zylinder
DE1909007A1 (de) * 1969-02-22 1970-08-27 Augsburg Nuernberg Ag Zweignie Verfahren und Einrichtung zum Betreiben einer Kolben-Waermekraftmaschine
US4077214A (en) * 1976-08-16 1978-03-07 Burke Jr Jerry Allen Condensing vapor heat engine with constant volume superheating and evaporating
DE2743584A1 (de) 1977-09-28 1979-04-05 Cycle Ass Waermekraftmaschine
DE3049024A1 (de) 1980-08-18 1982-03-25 Thermal Systems Ltd., Grand Cayman, Cayman Islands, Britisch Westindien "verbrennungsmotor mit hin und hergehendem kolben und mit aeusserer verbrennung"

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010105288A1 (fr) * 2009-03-15 2010-09-23 Ivec Pty Ltd Moteur thermique utilisant une source extérieure de chaleur

Also Published As

Publication number Publication date
DE19750360A1 (de) 1999-05-20

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