EP2204627B1 - Cooker for a diffusion absorption assembly - Google Patents
Cooker for a diffusion absorption assembly Download PDFInfo
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- EP2204627B1 EP2204627B1 EP20090179846 EP09179846A EP2204627B1 EP 2204627 B1 EP2204627 B1 EP 2204627B1 EP 20090179846 EP20090179846 EP 20090179846 EP 09179846 A EP09179846 A EP 09179846A EP 2204627 B1 EP2204627 B1 EP 2204627B1
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- heat transfer
- transfer medium
- filled
- boiler
- annular cylindrical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B33/00—Boilers; Analysers; Rectifiers
Definitions
- the invention relates to a digester for a diffusion absorption system according to the preamble of claim 1.
- Diffusion absorption systems have long been known as small refrigeration systems for use in household refrigerators. They can be used with a corresponding structural design as heat pumps for heating or cooling purposes.
- the refrigerant ammonia (NH 3 ) and water is used as a substance pair.
- the water is the solvent as the absorbent material, being used as a pressure-compensating carrier gas usually hydrogen or helium.
- the ammonia / water mixture is set in motion by heat by temperature and concentration differences in motion.
- the heat is supplied in a stove.
- By boiling gas bubbles are expelled from the NH 3 -rich solution.
- the proportion of water in this gas stream is separated or recycled in the rectifier, so that almost only NH 3 vapor flows to the condenser.
- the gas bubble pump must be designed so that it pumps the liquid to a considerable height in order to generate the necessary driving force.
- the high-purity ammonia vapor condenses and releases the heat of condensation to the heating water. Subsequently, the liquid ammonia flows down into the evaporator. In the helium / ammonia atmosphere, the ammonia evaporates while absorbing ambient energy.
- the gas mixture passes through a gas-7Gas heat exchanger and flows to the absorber, where the gaseous ammonia is absorbed by the NH 3 low-ammonia / water solution and the heat of absorption to the heating water releases before the noiseless process starts again.
- Both the EP 0 413 791 B1 as well as the EP 0 419 606 B1 show a diffusion absorption system with the individual units. These are each designed as separate components and connected to each other via lines. Because the working pressure in such systems is more than 20 bar, all units and lines must be designed to be pressure resistant. Therefore, in this structure results in a large number of welds, which must be very high quality or accurate. Overall arises for the individual pressure vessels and lines a considerable material, manufacturing and testing costs.
- the EP 0 419 606 B1 contains an expeller with a gas bubble pump. This has six circular arranged pump tubes and in the lower area also six flame tubes on a pitch circle for heating, each with a gas burner. In the alternating arrangement, each flame tube contacts two pump tubes and is welded to them. In addition, the pump tubes run as separate individual components directly in the central exhaust stack. With this relatively complicated construction of elbows and single tubes, the need for producing and welding many individual components arises with the effort described above.
- the DE-OS 24 05 950 shows, for example, an absorption chiller with rectifier. Each individual cooker tube is surrounded by a cylindrical, concentric jacket and the heating device is connected to this outer tube. In the intermediate space flows the refrigerant solution. However, it can only be achieved with small benefits. Also a concentric arrangement of the necessary for the formation of a stove pipes is from the US 55 33 362 and the DE-PS 478 338 known, wherein in the DE-PS 478 338 a heating tube forms a central heating device within a liquid container.
- a cooker for a diffusion absorption system known.
- several cooker tubes are arranged in a circle around a central heating device with overlying exhaust stack.
- There is a ring-cylindrical space around the cooker tubes which is bounded at the bottom on the inside by a wall around the heater or further above the flue.
- Another wall forms the outer jacket around the cooker tubes.
- the space between the inner and outer wall is filled in particular with poor ammonia / water solution and the cooker tubes open with their lower end face in the lower intake.
- a downwardly open annular space isolates the space around the heated cooker tubes from the surrounding suction space and / or reservoir with the rich ammonia / water solution.
- the invention has for its object to optimize the construction of a digester for a diffusion absorption system, in particular to make the power distribution to the stove pipes optimal and to allow easy monitoring.
- the cooker according to the invention is characterized in that the cooker tubes arranged around the common heating device are enclosed by a ring-cylindrical space filled with a heat transfer medium.
- this space around the cooker tubes preferably has a ring-cylindrical shape.
- On the inside it is surrounded by a wall enclosing a combustion chamber around the heating device, which also encloses in the upper area and the exhaust gas ducts leading to the exhaust gas chimney, and bounded on the outside by a surrounding wall.
- the cooker tubes are straight and penetrate the ring-cylindrical, filled with a heat transfer medium space vertically and at a distance from the vertical boundary walls, so that only the ends of the individual cooker tubes protrude from the ring-cylindrical, filled with a heat transfer medium space.
- a lower annular, the ring-cylindrical, filled with a heat transfer medium space horizontally limiting flange plate is mounted approximately at the bottom of the combustion chamber and above or in the upper part of the manifold for rich ammonia / water solution, which also serves as a reservoir.
- the ends of the cooker tubes protrude freely from there into the distributor as suction space.
- the heat transfer medium in the annular cylindrical filled with a heat transfer medium space around the cooker tubes a working temperature in the range of about 90 ° C to 200 ° C and a working pressure in the range of about 0 bar to 20 bar.
- Water is preferably provided as a heat transfer medium in the annular cylindrical, filled with a heat transfer medium space around the cooker tubes.
- it can also be another medium used.
- approximately 10 to 20 cooker tubes are arranged on at least one pitch circle in the annular cylindrical space filled with a heat transfer medium.
- a monitoring device for the annular cylindrical, filled with a heat transfer medium space can be provided around the cooker tubes, are monitored with the indirect function and operation of the cooker tubes.
- a pressure and / or temperature measurement at the annular cylindrical, filled with a heat transfer medium space around the cooker tubes which is characteristic of the function and operation of the cooker tubes in operation.
- the measurement can be done for example in this room or on the wall.
- the determined measured values are monitored and compared with predefinable threshold values.
- the ring-cylindrical space filled with a heat transfer medium around the cooker tubes is bordered on the outside by a further space, at least over a partial area of its vertical extent.
- This is preferably likewise designed annular cylindrical and provided in the lower and in the upper region with nozzles so that it can circulate a heat transfer medium of a circuit via a heat consumer or a heat generator.
- a digester of a diffusion absorption system is optimized.
- the power distribution is optimally designed on the cooker tubes and allows easy monitoring of the Kocher horres.
- the safety is increased because the otherwise possibly in case of damage possibly possible release of an ammonia / water mixture in a room can be virtually eliminated.
- the essential design criterion for this is the pressure-resistant closed jacket, in particular around the cooker tubes, in the zone of the most intense heat by the heating device. Otherwise, the danger of bursting is usually greatest when a pipe is completely sealed. If such a case of silting of one or more tubes occurs, this can now be easily determined by the invention via temperature and / or pressure deviations of the medium in the annular cylindrical space.
- the cooker tubes are now heated via an intermediate medium in the ring-cylindrical space filled with a heat transfer medium. So there is no direct contact with the flame anymore.
- the heat transfer from the combustion chamber wall to the cooker tubes and the power distribution to the individual tubes is very good, and the temperature distribution is very uniform. This makes possible a simple indirect monitoring of the cooker tubes via the intermediate medium in the annular cylindrical space.
- Another advantage is the inventively achieved independence of the heat source or the fuel, because the heat distribution in the stove and the design of the combustion chamber is easier and can be easily adapted to the heating device used. Where so far only one gas firing has been used, oil can now also be used, for example.
- the cooker tubes are protected by the expansion of the invention against any corrosive effects of the flame occurring.
- Another advantage of the arrangement according to the invention is the flexible power adjustment.
- the maximum power range of a diffusion absorption system as a gas heat pump has hitherto been limited by the modulability of the cooker tubes, that is to say their working range up to the beginning or end of vapor bubble formation.
- the invention it is even possible, via the other, outer annular cylindrical, filled with a heat transfer medium space, which surrounds the inner ring-cylindrical, filled with a heat transfer medium space around the cooker tubes to take energy. There is thus no restriction anymore by the maximum or minimum output of the cooker tubes.
- the power range, ie the modulated power output, according to the invention is determined exclusively by fuel and / or combustion chamber and can thus be adjusted more easily.
- the cooker for a diffusion absorption system consists essentially of a common heating device 1 in a combustion chamber 2 with overlying exhaust stack 3 and a plurality of vertically oriented, arranged around the heating device 1 cooker tubes 4 as expeller or gas bubble pump and a lower intake, not shown with a reservoir for rich ammonia - / Water solution as the lower part of a surrounding sealed, pressure-resistant container.
- the cooker tubes 4 are arranged in a circle around a common heating device and are surrounded by a ring-cylindrical, filled with a heat transfer medium space 5.
- This space 5 is bounded inwardly by a wall 6 which surrounds the combustion chamber 2 and the exhaust gas ducts 7 leading to the exhaust gas chimney 3.
- Another wall 8 forms outwardly the coat-like boundary.
- the cooker tubes penetrate the annular cylindrical, filled with a heat transfer medium space 5 vertically and at a distance from the vertical boundary walls 6, 8. Only the ends of the cooker tubes 4 protrude from the annular cylindrical, filled with a heat transfer medium space 5, the lower annular, the annular cylindrical , with a heat transfer medium filled space 5 horizontally delimiting flange plate 9 is mounted approximately at the bottom of the combustion chamber 2.
- Fig. 2 is the ring-cylindrical, filled with a heat transfer medium space 5 to the cooker tubes 4 at least on a portion of its vertical extent outside bordered by another annular cylindrical, filled with a heat transfer medium space 10.
- This is provided in the lower part with an inlet nozzle 11 and in the upper part with a discharge nozzle 12 so that it circulates a heat transfer medium of a circuit via a heat consumer or a heat generator. The circulation can also be reversed via the two ports 11, 12.
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- Physics & Mathematics (AREA)
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Description
Die Erfindung betrifft einen Kocher für eine Diffusionsabsorptionsanlage nach dem Oberbegriff des Patentanspruches 1.The invention relates to a digester for a diffusion absorption system according to the preamble of claim 1.
Diffusionsabsorptionsanlagen sind als Kleinkälteanlagen zur Verwendung in Haushaltskühlschränken seit langem bekannt. Sie können mit einer entsprechenden konstruktiven Gestaltung auch als Wärmepumpen zu Heiz- oder Kühlzwecken eingesetzt werden. In diesen Anlagen wird das Kältemittel Ammoniak (NH3) und Wasser als Stoffpaar eingesetzt. Dabei stellt das Wasser als Lösungsmittel den absorbierenden Stoff dar, wobei als druckausgleichendes Trägergas in der Regel Wasserstoff oder Helium verwendet wird. Als Arbeitsmedium im Kreisprozess setzt sich das Ammoniak-/Wasser-Gemisch bei Wärmezufuhr durch Temperatur- und Konzentrationsunterschiede in Bewegung.Diffusion absorption systems have long been known as small refrigeration systems for use in household refrigerators. They can be used with a corresponding structural design as heat pumps for heating or cooling purposes. In these plants, the refrigerant ammonia (NH 3 ) and water is used as a substance pair. In this case, the water is the solvent as the absorbent material, being used as a pressure-compensating carrier gas usually hydrogen or helium. As a working medium in the cyclic process, the ammonia / water mixture is set in motion by heat by temperature and concentration differences in motion.
Die Wärmezufuhr erfolgt in einem Kocher. Durch Sieden werden Gasblasen aus der NH3-reichen Lösung ausgetrieben. Der Wasseranteil in diesem Gasstrom wird im Rektifikator abgeschieden bzw. zurückgeführt, so daß fast nur NH3-Dampf zum Kondensator strömt. Dabei muss die Gasblasenpumpe so ausgebildet sein, dass sie die Flüssigkeit auf eine erhebliche Höhe pumpt, um die nötige Antriebskraft zu erzeugen. Der hochreine Ammoniakdampf kondensiert und gibt dabei die Kondensationswärme an das Heizungswasser ab. Anschließend strömt das flüssige Ammoniak nach unten in den Verdampfer. In der Helium-/Ammoniak-Atmosphäre verdampft das Ammoniak unter Aufnahme von Umgebungsenergie. Danach gelangt das Gasgemisch durch einen Gas-7Gas-Wärmetauscher und strömt zum Absorber, wo das gasförmige Ammoniak von der NH3-armen Ammoniak-/Wasser-Lösung absorbiert wird und die Absorptionswärme an das Heizungswasser abgibt, bevor der geräuschfreie Prozess wieder neu beginnt.The heat is supplied in a stove. By boiling gas bubbles are expelled from the NH 3 -rich solution. The proportion of water in this gas stream is separated or recycled in the rectifier, so that almost only NH 3 vapor flows to the condenser. In this case, the gas bubble pump must be designed so that it pumps the liquid to a considerable height in order to generate the necessary driving force. The high-purity ammonia vapor condenses and releases the heat of condensation to the heating water. Subsequently, the liquid ammonia flows down into the evaporator. In the helium / ammonia atmosphere, the ammonia evaporates while absorbing ambient energy. Thereafter, the gas mixture passes through a gas-7Gas heat exchanger and flows to the absorber, where the gaseous ammonia is absorbed by the NH 3 low-ammonia / water solution and the heat of absorption to the heating water releases before the noiseless process starts again.
Sowohl die
Die
Aus der Konstruktion von Kälteanlagen sind einzelne Zellen mit Kocherrohren bekannt. Die
Weiterhin ist aus der
Bei dieser Anordnung werden mehrere parallele Röhrchen des Kochers direkt vom Brenner erhitzt, so dass sich Feuerungseinflüsse, wie zum Beispiel eine ungleichmäßigeIn this arrangement, several parallel tubes of the digester are heated directly from the burner, so that firing influences, such as uneven
Flammenverteilung bei einem Gasbrenner, auch direkt bemerkbar machen. Durch die Parallelschaltung kann daher die Leistungsverteilung pro Rohr unterschiedlich sein. Bei Überlastung von einem Rohr produziert dieses ständig mehr Gas und weniger Flüssigkeit. Überhitzung, Rohrbruch sind dann möglicherweise die Folgen. Zudem ist die Einzelüberwachung von 16 parallelen Röhrchen bei diesem Aufbau relativ kompliziert und auch relativ störungsanfällig.Flame distribution in a gas burner, also directly noticeable. Due to the parallel connection, therefore, the power distribution per pipe can be different. When overloaded by a pipe, this constantly produces more gas and less liquid. Overheating, pipe burst are then possibly the consequences. In addition, the single monitoring of 16 parallel tubes in this structure is relatively complicated and also relatively prone to failure.
Der Erfindung liegt die Aufgabe zugrunde, den Aufbau eines Kochers für eine Diffusionsabsorptionsanlage zu optimieren, dabei insbesondere die Leistungsverteilung auf die Kocherrohre optimal zu gestalten und eine einfache Überwachung zu ermöglichen.The invention has for its object to optimize the construction of a digester for a diffusion absorption system, in particular to make the power distribution to the stove pipes optimal and to allow easy monitoring.
Erfindungsgemäß wird dies mit den Merkmalen des Patentanspruches 1 gelöst. Vorteilhafte Weiterbildungen sind den Unteransprüchen zu entnehmen.This is achieved with the features of claim 1 according to the invention. Advantageous developments can be found in the dependent claims.
Der erfindungsgemäße Kocher ist dadurch gekennzeichnet, dass die um die gemeinsame Beheizungseinrichtung angeordneten Kocherrohre von einem ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum eingefasst sind. Dabei besitzt dieser Raum um die Kocherrohre vorzugsweise eine ringzylindrische Form. An der Innenseite ist er von einer einen Brennraum um die Beheizungseinrichtung einfassenden Wand, welche im oberen Bereich auch und die zum Abgaskamin führenden Abgaskanäle einfasst, und nach außen hin von einer umgebenden Wand begrenzt.The cooker according to the invention is characterized in that the cooker tubes arranged around the common heating device are enclosed by a ring-cylindrical space filled with a heat transfer medium. In this case, this space around the cooker tubes preferably has a ring-cylindrical shape. On the inside, it is surrounded by a wall enclosing a combustion chamber around the heating device, which also encloses in the upper area and the exhaust gas ducts leading to the exhaust gas chimney, and bounded on the outside by a surrounding wall.
Die Kocherrohre sind gerade ausgebildet und durchdringen den ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum vertikal und mit Abstand zu den vertikalen Begrenzungswänden, so dass nur die Enden der einzelnen Kocherrohre aus dem ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum heraus ragen.The cooker tubes are straight and penetrate the ring-cylindrical, filled with a heat transfer medium space vertically and at a distance from the vertical boundary walls, so that only the ends of the individual cooker tubes protrude from the ring-cylindrical, filled with a heat transfer medium space.
Eine untere ringförmige, den ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum horizontal begrenzende Flanschplatte ist etwa an der Unterseite des Brennraumes und oberhalb oder im oberen Bereich des Verteilers für reiche Ammoniak-/WasserLösung angebracht, welcher gleichzeitig als Reservoir dient. Dabei ragen die Enden der Kocherrohre von dort aus frei in den Verteiler als Ansaugraum.A lower annular, the ring-cylindrical, filled with a heat transfer medium space horizontally limiting flange plate is mounted approximately at the bottom of the combustion chamber and above or in the upper part of the manifold for rich ammonia / water solution, which also serves as a reservoir. The ends of the cooker tubes protrude freely from there into the distributor as suction space.
Vorteilhafterweise weist das Wärmeträgermedium im ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum um die Kocherrohre eine Arbeitstemperatur im Bereich von etwa 90 °C bis 200 °C sowie einen Arbeitsdruck im Bereich von etwa 0 bar bis 20 bar auf. Wasser ist vorzugsweise als Wärmeträgermedium im ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum um die Kocherrohre vorgesehen. Es kann aber auch ein anderes Medium zum Einsatz kommen. Beispielsweise ein Öl, welches einen höheren Siedepunkt besitzt und somit zu einem niedrigeren Dampfdruck führt. Dadurch ist eine Begrenzung des maximalen Druckes des Mediums im ringzylindrischen Raum zu erreichen.Advantageously, the heat transfer medium in the annular cylindrical, filled with a heat transfer medium space around the cooker tubes a working temperature in the range of about 90 ° C to 200 ° C and a working pressure in the range of about 0 bar to 20 bar. Water is preferably provided as a heat transfer medium in the annular cylindrical, filled with a heat transfer medium space around the cooker tubes. But it can also be another medium used. For example, an oil which has a higher boiling point and thus leads to a lower vapor pressure. This makes it possible to achieve a limitation of the maximum pressure of the medium in the annular cylindrical space.
In einer bevorzugten Ausführungsform sind im ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum etwa 10 bis 20 Kocherrohre auf mindestens einem Teilkreis angeordnet. Vorzugsweise werden 16 Kocherrohre auf einem Teilkreis eingesetzt.In a preferred embodiment, approximately 10 to 20 cooker tubes are arranged on at least one pitch circle in the annular cylindrical space filled with a heat transfer medium. Preferably 16 cooker tubes are used on a pitch circle.
Weiterhin kann eine Überwachungseinrichtung für den ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum um die Kocherrohre vorgesehen sein, mit der indirekt Funktion und Wirkungsweise der Kocherrohre überwacht werden. Dabei erfolgt mit der Überwachungseinrichtung eine Druck- und/oder Temperaturmessung am ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum um die Kocherrohre, welche charakteristisch für Funktion und Wirkungsweise der Kocherrohre im Betrieb ist. Die Messung kann zum Beispiel in diesem Raum oder auch an der Wand erfolgen. Die ermittelten Messwerte werden überwacht und mit vorgebbaren Schwellwerten verglichen.Furthermore, a monitoring device for the annular cylindrical, filled with a heat transfer medium space can be provided around the cooker tubes, are monitored with the indirect function and operation of the cooker tubes. In this case, with the monitoring device, a pressure and / or temperature measurement at the annular cylindrical, filled with a heat transfer medium space around the cooker tubes, which is characteristic of the function and operation of the cooker tubes in operation. The measurement can be done for example in this room or on the wall. The determined measured values are monitored and compared with predefinable threshold values.
In einer weiteren Ausführungsform ist der ringzylindrische, mit einem Wärmeträgermedium gefüllte Raum um die Kocherrohre mindestens auf einem Teilbereich seiner Höhenerstreckung außen durch einem weiteren Raum eingefasst. Dieser ist vorzugsweise ebenfalls ringzylindrisch gestaltet sowie im unteren und im oberen Bereich mit Stutzen versehen, so dass darüber ein Wärmeträgermedium eines Kreislaufs über einen Wärmeverbraucher oder einen Wärmeerzeuger zirkulieren kann.In a further embodiment, the ring-cylindrical space filled with a heat transfer medium around the cooker tubes is bordered on the outside by a further space, at least over a partial area of its vertical extent. This is preferably likewise designed annular cylindrical and provided in the lower and in the upper region with nozzles so that it can circulate a heat transfer medium of a circuit via a heat consumer or a heat generator.
Mit dem erfindungsgemäßen Aufbau wird ein Kocher einer Diffusionsabsorptionsanlage optimiert. Insbesondere wird dabei die Leistungsverteilung auf die Kocherrohre optimal gestaltet und eine einfache Überwachung des Kocherbetriebes ermöglicht.With the construction according to the invention, a digester of a diffusion absorption system is optimized. In particular, while the power distribution is optimally designed on the cooker tubes and allows easy monitoring of the Kocherbetriebes.
Außerdem wird die Sicherheit erhöht, weil die sonst im Schadensfall eventuell mögliche Freisetzung eines Ammoniak-/Wasser-Gemisches in einem Aufstellungsraum praktisch ausgeschlossen werden kann. Das wesentliche Gestaltungskriterium dafür ist der druckbeständige geschlossene Mantel, insbesondere rund um die Kocherrohre, in der Zone der intensivsten Wärmeeinwirkung durch die Beheizungseinrichtung. Die Rohrbruch-Gefahr ist nämlich ansonsten in der Regel am größten, wenn ein Rohr vollständig dicht zugesetzt ist. Tritt ein derartiger Fall von Verschlammung von einem oder mehreren Röhrchen auf, ist dies nun durch die Erfindung einfach über Temperatur- und/oder Druckabweichungen des Mediums im ringzylindrischen Raum festzustellen.In addition, the safety is increased because the otherwise possibly in case of damage possibly possible release of an ammonia / water mixture in a room can be virtually eliminated. The essential design criterion for this is the pressure-resistant closed jacket, in particular around the cooker tubes, in the zone of the most intense heat by the heating device. Otherwise, the danger of bursting is usually greatest when a pipe is completely sealed. If such a case of silting of one or more tubes occurs, this can now be easily determined by the invention via temperature and / or pressure deviations of the medium in the annular cylindrical space.
Erfindungsgemäß werden die Kocherrohre nun über ein Zwischenmedium im-ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum erhitzt. Es besteht also kein direkter Kontakt mehr mit der Flamme. Die Wärmeübertragung von der Brennraumwand zu den Kocherrohren sowie die Leistungsverteilung auf die einzelnen Rohre ist sehr gut, und die Temperaturverteilung ist sehr gleichmäßig. Dies macht eine einfache indirekte Überwachung der Kocherrohre über das Zwischenmedium im ringzylindrischen Raum möglich.According to the invention, the cooker tubes are now heated via an intermediate medium in the ring-cylindrical space filled with a heat transfer medium. So there is no direct contact with the flame anymore. The heat transfer from the combustion chamber wall to the cooker tubes and the power distribution to the individual tubes is very good, and the temperature distribution is very uniform. This makes possible a simple indirect monitoring of the cooker tubes via the intermediate medium in the annular cylindrical space.
Ein weiterer Vorteil ist die erfindungsgemäß erreichte Unabhängigkeit von der Wärmequelle bzw. des Brennstoffes, weil die Wärmeverteilung im Kocher sowie die Gestaltung des Brennraumes einfacher wird und gut an die verwendete Beheizungseinrichtung angepasst werden kann. Wo bisher nur eine Gasfeuerung verwendet wurde, kann nun zum Beispiel auch Öl eingesetzt werden. Auch werden die Kocherrohre durch den erfindungsgemäßen Ausbau vor eventuell auftretenden korrosiven Einflüssen der Flamme geschützt.Another advantage is the inventively achieved independence of the heat source or the fuel, because the heat distribution in the stove and the design of the combustion chamber is easier and can be easily adapted to the heating device used. Where so far only one gas firing has been used, oil can now also be used, for example. The cooker tubes are protected by the expansion of the invention against any corrosive effects of the flame occurring.
Ein weiterer Vorteil der erfindungsgemäßen Anordnung ist die flexible Leistungsanpassung. Gemäß dem Stand der Technik wird bisher der maximale Leistungsbereich einer Diffusionsabsorptionsanlage als Gaswärmepumpe durch die Modulierbarkeit der Kocherrohre, also deren Arbeitsbereich bis zum Beginn bzw. Ende der Dampfblasenbildung, beschränkt. Erfindungsgemäß ist es sogar möglich, über den weiteren, äußeren ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum, welcher den inneren ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum um die Kocherrohre einfasst, Energie wegzunehmen. Es liegt somit keine Einschränkung mehr durch die maximale oder minimale Leistung der Kocherrohre vor. Der Leistungsbereich, also die modulierbare Leistungsabgabe, wird erfindungsgemäß ausschließlich durch Brennstoff und/oder Brennraum bestimmt und lässt sich somit einfacher anpassen.Another advantage of the arrangement according to the invention is the flexible power adjustment. According to the prior art, the maximum power range of a diffusion absorption system as a gas heat pump has hitherto been limited by the modulability of the cooker tubes, that is to say their working range up to the beginning or end of vapor bubble formation. According to the invention, it is even possible, via the other, outer annular cylindrical, filled with a heat transfer medium space, which surrounds the inner ring-cylindrical, filled with a heat transfer medium space around the cooker tubes to take energy. There is thus no restriction anymore by the maximum or minimum output of the cooker tubes. The power range, ie the modulated power output, according to the invention is determined exclusively by fuel and / or combustion chamber and can thus be adjusted more easily.
Weiterhin besteht die Möglichkeit, über den weiteren, äußeren ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum zusätzliche Energie in den Prozess einzubringen. Beispielsweise kann dies solar erzeugte Energie sein, insbesondere bei Anlagen, welche für solare Kühlung zum Einsatz kommen.Furthermore, it is possible to introduce additional energy into the process via the further, outer ring-cylindrical space filled with a heat transfer medium. For example, this can be solar-generated energy, especially in systems that are used for solar cooling.
Die Zeichnung stellt ein Ausführungsbeispiel der Erfindung dar. Es zeigt, jeweils im vertikalen Schnitt, einen Kocher für eine Diffusionsabsorptionsanlage:
-
Fig. 1 : mit einem ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum um die Kocherrohre und -
Fig. 2 : wieFig. 1 , aber mit einem weiteren, äußeren ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum mit Anschluss an einen Kreislauf eines Wärmeträgermediums über einen Wärmeverbraucher oder einen Wärmeerzeuger.
-
Fig. 1 with a ring-cylindrical, with a heat transfer medium filled space around the cooker tubes and -
Fig. 2 : asFig. 1 but with a further, outer ring-cylindrical, filled with a heat transfer medium space with connection to a circuit of a heat transfer medium via a heat consumer or a heat generator.
Der Kocher für eine Diffusionsabsorptionsanlage besteht im Wesentlichen aus einer gemeinsamen Beheizungseinrichtung 1 in einem Brennraum 2 mit darüberliegendem Abgaskamin 3 sowie, mehreren vertikal ausgerichteten, um die Beheizungseinrichtung 1 angeordneten Kocherrohren 4 als Austreiber oder Gasblasenpumpe sowie einem nicht dargestellten unteren Ansaugraum mit einem Reservoir für reiche Ammoniak-/Wasser-Lösung als unterer Teil eines umgebenden abgeschlossenen, druckbeständigen Behälters.The cooker for a diffusion absorption system consists essentially of a common heating device 1 in a
Die Kocherrohre 4 sind kreisförmig um eine gemeinsame Beheizungseinrichtung angeordnet und werden von einem ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum 5 eingefasst. Dieser Raum 5 ist nach innen hin von einer Wand 6 begrenzt, welche den Brennraum 2 und die zum Abgaskamin 3 führenden Abgaskanäle 7 umgibt. Eine weitere Wand 8 bildet nach außen hin die mantelartige Begrenzung.The
Die Kocherrohre durchdringen den ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum 5 vertikal und mit Abstand zu den vertikalen Begrenzungswänden 6, 8. Nur die Enden der Kocherrohre 4 ragen aus dem ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum 5 heraus, wobei die untere ringförmige, den ringzylindrischen, mit einem Wärmeträgermedium gefüllten Raum 5 horizontal begrenzende Flanschplatte 9 etwa an der Unterseite des Brennraumes 2 angebracht ist.The cooker tubes penetrate the annular cylindrical, filled with a heat
Gemäß
Claims (10)
- Boiler for a diffusion absorption system comprising a central heating device (1) with waste gas flue (3) located thereabove, a surrounding, liquid-carrying jacket, a plurality of vertically aligned boiler tubes (4) arranged around the common heating device (1) as an expeller or gas bubble pump and a lower suction chamber with a reservoir for a strong ammonia-water solution as lower part of a closed, pressure-resistant container,
characterized in that the boiler tubes (4) arranged around the common heating device (1) are bordered by an annular cylindrical chamber (5) filled with a heat transfer medium. - The boiler according to claim 1,
characterized in that the chamber (5) filled with a heat transfer medium has an annular cylindrical shape around the boiler tubes (4), is delimited on the inner side by a wall (6) bordering a combustion chamber (2) around the heating device (1) and waste gas channels (7) leading to the waste gas flue (3) and towards the outside by a circumferential wall (8). - The boiler according to claims 1 or 2, characterized in that the boiler tubes (4) are configured to be straight, pass through the annular cylindrical chamber (5) filled with a heat transfer medium vertically and at a distance from the vertical boundary walls (6, 8) and that only the ends of the individual boiler tubes (4) project from the annular cylindrical chamber (5).
- The boiler according to any one of claims 1 to 3, characterized in that a lower annular flange plate (9) horizontally delimiting the annular cylindrical chamber (5) filled with a heat transfer medium is attached approximately on the lower side of the combustion chamber (2) and above or in the upper region of the reservoir as distributor for strong ammonia-water solution, wherein the ends of the boiler tubes (4) project from there freely into the distributor as suction chamber.
- The boiler according to any one of claims 1 to 4, characterized in that the heat transfer medium in the annular cylindrical chamber (5) filled with a heat transfer medium around the boiler tubes (4) has an operating temperature in the range of about 90°C to 200°C and an operating pressure in the range of about 0 bar to 20 bar.
- The boiler according to any one of claims 1 to 5, characterized in that water is provided as heat transfer medium in the annular cylindrical chamber (5) filled with a heat transfer medium around the boiler tubes (4).
- The boiler according to any one of claims 1 to 6, characterized in that approximately 10 to 20 boiler tubes are arranged on at least one pitch circle in the annular cylindrical chamber (5) filled with a heat transfer medium.
- The boiler according to any one of claims 1 to 7, characterized in that a monitoring device is provided for the annular cylindrical chamber (5) filled with a heat transfer medium around the boiler tubes (4), with which function and operating mode of the boiler tubes (4) is indirectly monitored.
- The boiler according to any one of claims 1 to 8, characterized in that the monitoring device monitors function and operating mode of the boiler tubes (4) by means of pressure and/or temperature measured on the annular cylindrical chamber (5) filled with a heat transfer medium around the boiler tubes (4) and compares them with predefinable threshold values.
- The boiler according to any one of claims 1 to 9, characterized in that the annular cylindrical chamber (5) filled with a heat transfer medium around the boiler tubes (4) is bordered on the outside at least on a partial region of its height extension by another chamber (10), which is provided with an inlet connector (11) and an outlet connector (12) so that a heat transfer medium of a circuit is circulated thereover via a heat consumer or a heat generator.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910003912 DE102009003912B4 (en) | 2009-01-03 | 2009-01-03 | Cooker for a diffusion absorption system |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2204627A2 EP2204627A2 (en) | 2010-07-07 |
EP2204627A3 EP2204627A3 (en) | 2012-02-01 |
EP2204627B1 true EP2204627B1 (en) | 2013-02-20 |
Family
ID=42112181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20090179846 Not-in-force EP2204627B1 (en) | 2009-01-03 | 2009-12-18 | Cooker for a diffusion absorption assembly |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2204627B1 (en) |
DE (1) | DE102009003912B4 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9664451B2 (en) | 2013-03-04 | 2017-05-30 | Rocky Research | Co-fired absorption system generator |
CN103148640A (en) * | 2013-03-20 | 2013-06-12 | 浙江腾云制冷科技有限公司 | Inner pipe for generator |
DE102013222658A1 (en) * | 2013-11-07 | 2015-05-07 | Robert Bosch Gmbh | absorption heat pump |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE478338C (en) | 1929-06-22 | Sulzer Akt Ges Geb | Cooker absorber for absorption refrigeration machines with intermittent operation | |
EP0413791B1 (en) | 1989-03-14 | 1993-05-12 | STIERLIN, Hans | Absorber for a diffusion absorption plant |
DE59006680D1 (en) | 1989-03-14 | 1994-09-08 | Hans Dipl Ing Dr Stierlin | DRIVER WITH A GAS BUBBLE PUMP. |
US5067330A (en) | 1990-02-09 | 1991-11-26 | Columbia Gas System Service Corporation | Heat transfer apparatus for heat pumps |
DE10014128C1 (en) | 2000-03-22 | 2001-08-30 | Buderus Heiztechnik Gmbh | Boiler for diffusion absorption system has boiler tubes arranged in circle about central heater in closed pressure-resistant container forming annular chamber |
DE10154032B4 (en) * | 2001-11-02 | 2005-06-23 | Bbt Thermotechnik Gmbh | Diffusion absorption plant |
DE10248557B4 (en) * | 2002-10-18 | 2006-06-14 | Robert Bosch Gmbh | Diffusion absorption plant |
-
2009
- 2009-01-03 DE DE200910003912 patent/DE102009003912B4/en not_active Expired - Fee Related
- 2009-12-18 EP EP20090179846 patent/EP2204627B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
DE102009003912B4 (en) | 2011-11-03 |
EP2204627A3 (en) | 2012-02-01 |
EP2204627A2 (en) | 2010-07-07 |
DE102009003912A1 (en) | 2010-07-08 |
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