WO1991003686A1 - Method of studying pressure combustion processes of stoichiometrically burning hydrogen/oxygen under high pressures - Google Patents
Method of studying pressure combustion processes of stoichiometrically burning hydrogen/oxygen under high pressures Download PDFInfo
- Publication number
- WO1991003686A1 WO1991003686A1 PCT/CH1990/000211 CH9000211W WO9103686A1 WO 1991003686 A1 WO1991003686 A1 WO 1991003686A1 CH 9000211 W CH9000211 W CH 9000211W WO 9103686 A1 WO9103686 A1 WO 9103686A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- combustion processes
- pressure
- under high
- test
- video cameras
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 19
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims description 10
- 239000001257 hydrogen Substances 0.000 title claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 title claims description 10
- 239000001301 oxygen Substances 0.000 title claims description 9
- 229910052760 oxygen Inorganic materials 0.000 title claims description 9
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 title 1
- 238000012360 testing method Methods 0.000 claims abstract description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 239000000446 fuel Substances 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 4
- 239000002826 coolant Substances 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 238000005094 computer simulation Methods 0.000 claims description 2
- 238000007667 floating Methods 0.000 claims description 2
- 238000005457 optimization Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000000155 melt Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
- F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/14—Drilling by use of heat, e.g. flame drilling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2229/00—Flame sensors
- F23N2229/20—Camera viewing
Definitions
- melt drilling according to the international application PCT / DE89 / 00013 and by means of melting drills according to the German patent DE 25 54 101 C2 is carried out by the stoichiometric combustion of hydrogen and oxygen, the fuel jet emerging from a drill head and directly melting the rock.
- the melt is pressed under several hundred bar pressure, which is applied to the drill head, into the cracks generated in the rock due to thermal stress.
- pressures such as those which have to be built up for this melt drilling method cannot be generated in pressure vessels. There is therefore the problem of gaining information about the pressure combustion processes of stoichiometrically burning hydrogen / oxygen in pressures which prevail in the rock at a depth of several thousand meters.
- the object of this invention is to create a method for studying pressure combustion processes of stochiometrically burning hydrogen / oxygen under high pressures, such as occur in melt drilling at a depth of several thousand meters.
- the aim of such studies is to obtain sufficient information about these pressure combustion processes that, for example, optimized burner nozzles or combustion chambers can be produced on the basis of the data obtained.
- melt drilling method it is the object of the invention to demonstrate the maintenance of the burning processes under external pressures of up to 1000 bar and to obtain data on the development of melting drilling devices which, by controlling the fuel gas pressures, set the optimum drilling rate.
- This task is solved by a method for the study of pressure combustion processes of stochiometrically burning hydrogen / oxygen under high pressures, in which the deep sea is used as external pressure medium and coolant by one or more burners are positioned on a floating test stand in such a way that underwater video cameras installed peripherally on the test stand can capture the burning process from all sides.
- the test scaffold is mounted on a ship and lowered to corresponding depths, and the results of the firing tests are made directly visible on monitors in the research laboratory, the data obtained being passed on to simulation computers for use.
- the fuel supply can be carried out via pressure bottle bundles or according to the TUBE-COIL system in accordance with the international application PCT / CH90 / 000123, the pressures via the lines of the TUBE-COIL system being carried out without high loss of useful memory for the combustion process are available, which is particularly important for deep trials.
- the buoyancy of the test facility and the change in its equilibrium position during the burning periods are compensated for by the intrinsic weight of the facility itself.
- the burner is cooled by the test medium.
- test medium as a coolant
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Engines (AREA)
Abstract
The method of directly observing pressure combustion processes in deep seas makes it possible to observe combustion processes taking place under high environmental and even higher internal combustion pressures by means of video cameras and to use the data obtained directly to optimise burner nozzles or combustion chambers, for example. This direct use of the data obtained in the transparent test medium, which at the same time eliminates cooling and technical materials problems, saves valuable development time and costs.
Description
Verfahren zum Studium von Druckverbrennunqsvorcränσen von stochiometrisch verbrennendem Wasserstoff/Sauerstoff unter hohen Drucken Process for the study of pressure combustion precranes of stochiometrically burning hydrogen / oxygen under high pressures
Das Schmelzbohren nach der internationalen Anmeldung PCT/DE89/00013 und mittels Schmelzbohrgeräten gemäss der deutschen Patentschrift DE 25 54 101 C2 erfolgt durch das stöchiometrische verbrennen von Wasserstoff und Sauerstoff, wobei der Brennstrahl aus einem Bohrkopf austritt und direkt das Gestein aufschmilzt. Die Schmelze wird unter mehreren hundert bar Druck, mit welchem der Bohrkopf beaufschlagt wird, in die infolge Thermostress im Seitengestein erzeugten Risse verpresst. Drucke, wie sie für dieses Schmelzbohrver¬ fahren aufgebaut werden müssen, können unter grossräumigen, realistischen Bedingungen in Druckbehältern nicht erzeugt werden. Es besteht daher das Problem, Aufschluss über die Druckverbrennungsvorgänge von stochiometrisch verbrennendem Wasserstoff/Sauerstoff in Drucken, wie sie in mehreren tau¬ send Metern Tiefe im Gestein vorherrschen, zu gewinnen. Sol¬ che Versuche mit einem Wasserstoff/Sauerstoff-Brenner in der¬ art hohen Druckbereichen liegen nicht vor, da die Möglichkeit der Knallgasbildung im Versuchsbehälter bislang einem Versuch entgegenstand. Bekannt sind Unterwasser-Simulationsanlagen
zur Entwicklung von Unterwasserarbeiten, die speziell für die Offshore-Technik benötigt werden. In diesen Druckbehältern wurden auch Schweissverfahren erprobt, wobei die Anwendung der Schweisstechnik im Vordergrund stand und nicht das Stu¬ dium von Druckverbrennungsvorgängen an sich, insbesondere nicht bei Drucken von mehreren hundert oder gar mehreren tau¬ send bar.Melt drilling according to the international application PCT / DE89 / 00013 and by means of melting drills according to the German patent DE 25 54 101 C2 is carried out by the stoichiometric combustion of hydrogen and oxygen, the fuel jet emerging from a drill head and directly melting the rock. The melt is pressed under several hundred bar pressure, which is applied to the drill head, into the cracks generated in the rock due to thermal stress. Under large-scale, realistic conditions, pressures such as those which have to be built up for this melt drilling method cannot be generated in pressure vessels. There is therefore the problem of gaining information about the pressure combustion processes of stoichiometrically burning hydrogen / oxygen in pressures which prevail in the rock at a depth of several thousand meters. Such tests with a hydrogen / oxygen burner in such high pressure ranges are not available, since the possibility of detonating gas formation in the test container has hitherto prevented a test. Underwater simulation systems are known for the development of underwater work that is specifically required for offshore technology. Welding processes were also tested in these pressure vessels, the focus being on the use of welding technology and not on studying pressure combustion processes per se, in particular not on pressures of several hundred or even several thousand bars.
Aufgabe dieser Erfindung ist es, ein Verfahren zum Studium von Druckverbrennungsvorgangen von stochiometrisch verbren¬ nendem Wasserstoff/Sauerstoff unter hohen Drucken zu schaf¬ fen, wie sie beim Schmelzbohren in mehrere tausend Meter Tiefe auftreten. Das Ziel solcher Studien ist es, derart hin¬ reichend Aufschluss über diese Druckverbrennungsvorgänge zu gewinnen, dass aufgrund der gewonnenen Daten zum Beispiel op¬ timierte Brennerdüsen oder Brennkammern hergestellt werden können.The object of this invention is to create a method for studying pressure combustion processes of stochiometrically burning hydrogen / oxygen under high pressures, such as occur in melt drilling at a depth of several thousand meters. The aim of such studies is to obtain sufficient information about these pressure combustion processes that, for example, optimized burner nozzles or combustion chambers can be produced on the basis of the data obtained.
Speziell für das eingangs erwähnte Schmelzbohrverfahren ist es Aufgabe der Erfindung, die Aufrechterhaltung der Brennvor¬ gänge unter Aussendrucken bis zu 1000 bar nachzuweisen und Daten zur Entwicklung von Schmelzbohrgeräten zu gewinnen, die selbststeuernd durch Regelung der Brenngasdrucke die optimale BohrforSchrittsgeschwindigkeit einstellen.Specifically for the melt drilling method mentioned at the outset, it is the object of the invention to demonstrate the maintenance of the burning processes under external pressures of up to 1000 bar and to obtain data on the development of melting drilling devices which, by controlling the fuel gas pressures, set the optimum drilling rate.
Gelöst wird diese Aufgabe von einem Verfahren zum Studium von Druckverbrennungsvorgängen von stochiometrisch verbrennendem Wasserstoff/Sauerstoff unter hohen Drucken, bei dem die Tief- see als Aussendruckmedium und Kühlmittel genutzt wird, indem
ein oder mehrere Brenner an einem schwimmenden Testgerüst so postiert werden, dass peripher am Testgerüst installierte Un¬ terwasser-Videokameras von allen Seiten den Brennvorgang er¬ fassen können.This task is solved by a method for the study of pressure combustion processes of stochiometrically burning hydrogen / oxygen under high pressures, in which the deep sea is used as external pressure medium and coolant by one or more burners are positioned on a floating test stand in such a way that underwater video cameras installed peripherally on the test stand can capture the burning process from all sides.
Das Testgerüst wird an einem Schiff montiert und in entspre¬ chende Tiefen abgesenkt und die Ergebnisse der Brennversuche werden über Monitoren im Forschungslabor direkt sichtbar ge¬ macht, wobei die gewonnen Daten zur Verwertung an Simulationscomputer weitergegeben werden. Die BrennstoffVer¬ sorgung kann über Druckflaschenbündel oder nach dem TUBE- COIL-System gemäss der internationalen Anmeldung PCT/CH90/000123 ausgeführt werden, wobei die über die Leitun¬ gen des TUBE-COIL-Systems geführten Drucke ohne hohen Nutz¬ speicherverlust für den Brennvorgang zur Verfügung stehen, was vorallem für Tiefstversuche von Bedeutung ist. Der Auf¬ trieb der Versuchsanlage und die Veränderung deren Gleichge¬ wichtslage während der Brennperioden wird durch das Eigenge¬ wicht der Anlage selbst kompensiert. Die Kühlung des Brenners wird vom Testmedium übernommen.The test scaffold is mounted on a ship and lowered to corresponding depths, and the results of the firing tests are made directly visible on monitors in the research laboratory, the data obtained being passed on to simulation computers for use. The fuel supply can be carried out via pressure bottle bundles or according to the TUBE-COIL system in accordance with the international application PCT / CH90 / 000123, the pressures via the lines of the TUBE-COIL system being carried out without high loss of useful memory for the combustion process are available, which is particularly important for deep trials. The buoyancy of the test facility and the change in its equilibrium position during the burning periods are compensated for by the intrinsic weight of the facility itself. The burner is cooled by the test medium.
Die Vorteile des erfindungsgemässen Verfahrens zur Simulation von Druckverbrennungsvorgängen unter hohen Drucken liegen:The advantages of the method according to the invention for simulating pressure combustion processes under high pressures are:
1. in der Sichtbarmachung der Verbrennungsvorgänge und ih¬ rer direkten Erfassung über Monitore und Datenspeicher;
2. in der sofortigen Nutzung von Daten zur Computersimula¬ tion und zur Brenner-Optimierung, die über CAD/CAM Ver¬ fahren für die Steuerung von an Bord befindlichen Werk¬ zeugmaschinen zur Herstellung verbesserter Brenner an jene weitergegeben werden. Die so hergestellten Brenner können für weitere Brennversuche während einer Testfahrt bis zum Optimum ausgetestet werden;1. in the visualization of the combustion processes and their direct acquisition via monitors and data storage; 2. in the immediate use of data for computer simulation and for torch optimization, which are passed on to them via CAD / CAM methods for the control of machine tools on board for the production of improved torches. The burners thus produced can be tested to the optimum for further burning tests during a test drive;
3. in der Nutzung des Testmediums als Kühlmittel, wodurch die Lösung materialtechnischer Probleme zeitlich nicht vor der Erprobung von Testgeräten zu stehen braucht;3. in the use of the test medium as a coolant, so that the solution to material problems does not have to be before testing devices;
4. in der Zeit- und Kostenersparnis, die sich aus den Punk¬ ten 1 bis 3 ergibt und speziell die Entwicklung der Schmelzbohrtechnik rapide beschleunigen kann;4. in the time and cost savings which result from items 1 to 3 and in particular can rapidly accelerate the development of the melting drilling technique;
5. in der Durchführung einer Machbarkeits-Studie (FEASIBI- LITY STUDY) , durch die mit relativ geringen Mitteln die technische Durchführbarkeit des Schmelzbohrverfahrens mit den entwickelten Brennern nachweisbar ist, und5. in the implementation of a feasibility study (FEASIBILITY STUDY), by means of which the technical feasibility of the fusion drilling process with the developed burners can be demonstrated with relatively little means, and
6. in der Nutzanwendung der ermittelbaren Daten für alle Druckverbrennungsvorgänge, insbesondere in der Raketen¬ technik und in der Verbrennungstechnik für mit Wasser¬ stoff betriebene Automobile.
6. in the use of the ascertainable data for all pressure combustion processes, in particular in rocket technology and in combustion technology for automobiles operated with hydrogen.
Claims
Patentansprüche Claims
Verfahren zum Studium von Druckverbrennungsvorgängen von stochiometrisch verbrennendem Wasserstoff/Sauerstoff un¬ ter hohen Drucken, bei dem die Tiefsee als Aussendruck¬ medium und Kühlmittel genutzt wird, indem ein oder meh¬ rere Brenner an einem schwimmenden Testgerüst so po¬ stiert werden, dass peripher am Testgerüst installierte Unterwasser-Videokameras von allen Seiten den Brennvor¬ gang erfassen können.Method for studying pressure combustion processes of stochiometrically burning hydrogen / oxygen under high pressures, in which the deep sea is used as an external pressure medium and coolant, in that one or more burners are positioned on a floating test framework in such a way that peripherally at the Test scaffold installed underwater video cameras can capture the burning process from all sides.
Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass zur Brennstrahl-Simulation von stochiometrisch verbren¬ nendem Wasserstoff/Sauerstoff-Gemisch in unter hohem Druck stehender Gesteinsschmelze die Druckverbrennungs¬ vorgänge mittels der Unterwasser-Videokameras direkt be¬ obachtet werden.A method according to claim 1, characterized in that the pressure combustion processes are directly observed by means of the underwater video cameras for the fuel jet simulation of a stochiometrically burning hydrogen / oxygen mixture in a rock melt under high pressure.
Verfahren nach einem der vorhergehenden Ansprüche, da¬ durch gekennzeichnet, dass ein Testgerät, verbunden mit Brennstoff-Druckbehältern beziehungsweise einem Brenn- stoff-Tube-Coil-Druck-Versorgungssystem und ausgestattet
mit Druckbrennern und Unterwasser-Videokameras, abge¬ senkt wird, wobei die Unterwasser-Videokameras so mon¬ tiert werden, dass die Verbrennungsvorgänge allseitig erfassbar sind.Method according to one of the preceding claims, characterized in that a test device, connected to fuel pressure vessels or a fuel tube coil pressure supply system, is equipped with pressure burners and underwater video cameras, the underwater video cameras being mounted in such a way that the combustion processes can be detected on all sides.
Verfahren nach einem der vorhergehenden Ansprüche, da¬ durch gekennzeichnet, dass die gewonnen Daten aus den Verbrennungsvorgängen durch Computersimulation vor Ort zur Herstellung optimierter Versuchsbrenner genutzt wer¬ den, sodass das Optimierungsziel während einer Tiefsee- Testfahrt erreichbar ist.
Method according to one of the preceding claims, characterized in that the data obtained from the combustion processes are used by computer simulation on site to produce optimized test burners, so that the optimization goal can be achieved during a deep-sea test drive.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3930231A DE3930231A1 (en) | 1989-09-11 | 1989-09-11 | METHOD FOR THE DIRECT MONITORING OF PRESSURE BURNING PROCESSES IN THE DEEP SEA FOR FUEL JET SIMULATION OF STOECHIOMETRICALLY BURNING HYDROGEN / OXYGEN IN HIGH PRESSURE STONE MELT |
| DEP3930231.8 | 1989-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1991003686A1 true WO1991003686A1 (en) | 1991-03-21 |
Family
ID=6389133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CH1990/000211 WO1991003686A1 (en) | 1989-09-11 | 1990-09-10 | Method of studying pressure combustion processes of stoichiometrically burning hydrogen/oxygen under high pressures |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0442994A1 (en) |
| JP (1) | JPH04503840A (en) |
| AU (1) | AU6279790A (en) |
| DE (1) | DE3930231A1 (en) |
| WO (1) | WO1991003686A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434876B (en) * | 2019-08-09 | 2024-03-22 | 南京工程学院 | Six-degree-of-freedom ROV simulation driving system and simulation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985001904A1 (en) * | 1983-10-25 | 1985-05-09 | Subsea International Inc. | Apparatus for cutting materials underwater |
| WO1988002891A1 (en) * | 1986-10-16 | 1988-04-21 | Imatran Voima Oy | Method of image analysis in pulverized fuel combustion |
| EP0352620A2 (en) * | 1988-07-29 | 1990-01-31 | MARTIN GmbH für Umwelt- und Energietechnik | Process and apparatus for regulating the firing power of combustion plants |
-
1989
- 1989-09-11 DE DE3930231A patent/DE3930231A1/en not_active Ceased
-
1990
- 1990-09-10 EP EP90912863A patent/EP0442994A1/en not_active Withdrawn
- 1990-09-10 AU AU62797/90A patent/AU6279790A/en not_active Abandoned
- 1990-09-10 WO PCT/CH1990/000211 patent/WO1991003686A1/en not_active Application Discontinuation
- 1990-09-10 JP JP2511964A patent/JPH04503840A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985001904A1 (en) * | 1983-10-25 | 1985-05-09 | Subsea International Inc. | Apparatus for cutting materials underwater |
| WO1988002891A1 (en) * | 1986-10-16 | 1988-04-21 | Imatran Voima Oy | Method of image analysis in pulverized fuel combustion |
| EP0352620A2 (en) * | 1988-07-29 | 1990-01-31 | MARTIN GmbH für Umwelt- und Energietechnik | Process and apparatus for regulating the firing power of combustion plants |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0442994A1 (en) | 1991-08-28 |
| AU6279790A (en) | 1991-04-08 |
| JPH04503840A (en) | 1992-07-09 |
| DE3930231A1 (en) | 1991-03-14 |
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