EP0758073B1 - Refrigeration device - Google Patents
Refrigeration device Download PDFInfo
- Publication number
- EP0758073B1 EP0758073B1 EP96111414A EP96111414A EP0758073B1 EP 0758073 B1 EP0758073 B1 EP 0758073B1 EP 96111414 A EP96111414 A EP 96111414A EP 96111414 A EP96111414 A EP 96111414A EP 0758073 B1 EP0758073 B1 EP 0758073B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- refrigerant
- vapour
- plate heat
- drum
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
-
- 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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/022—Evaporators with plate-like or laminated elements
-
- 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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
- F25B2339/024—Evaporators with refrigerant in a vessel in which is situated a heat exchanger
- F25B2339/0241—Evaporators with refrigerant in a vessel in which is situated a heat exchanger having plate-like elements
Definitions
- the invention relates to a device for generating refrigeration in a closed Refrigerant circuit for cooling a refrigerant, in particular of a water-brine mixture, with a compressor in the refrigerant circuit gaseous refrigerant drawn from a steam drum and compressed and with supplies high pressure to a condenser, from which the liquid refrigerant after a pressure release across the liquid space of the steam drum Evaporator is supplied in which the refrigerant by the evaporation of the Heat is removed from the refrigerant and from which the gaseous refrigerant Steam space is fed to the steam drum again, the Heat exchanger surface of the evaporator as a plate heat exchanger with im Cross-countercurrent to each other and formed media Liquid space of the steam drum is arranged.
- Such devices for refrigeration which are also called compression refrigeration machines are known from US-A-3 538 718.
- the heat exchanger in the Center of the housing arranged so that it is a distance from all Has side walls of the housing.
- this is also known Construction by liquid evaporation of the refrigerant in the heat exchanger Refrigerant entrained to the surface of the liquid level, which then sinks back to the bottom of the steam drum due to the density differences, however, this circulation takes place without being influenced by the arrangement of the Heat exchanger in the housing. Because of this, it is necessary to have both a Device for regulating the liquid level as well as a pressure regulator to use.
- the invention has for its object to provide a device for refrigeration as a compact unit, the performance of which can be predetermined by the generation of a defined natural circulation for the refrigerant.
- the solution to this problem by the invention is characterized in that the heat exchanger surface of the plate heat exchanger is integrated in the steam drum designed as a pressure-resistant housing in such a way that both the supply nozzle and the discharge nozzle on one side and a deflection chamber for the coolant flowing horizontally through the plate heat exchanger arranged on the other side outside the housing of the steam drum and defined between the two side walls of the plate heat exchanger and the parallel housing walls of the steam drum drop channels are formed for the refrigerant circulated by gravity in natural circulation.
- the combination of evaporator and steam drum according to the invention results not only in a space-saving construction, but also in the arrangement the heat exchanger surfaces of the evaporator in the liquid space Steam drum an evaporation process in natural circulation, in which the liquid Refrigerant enters the plate heat exchanger from below and as a gaseous one Refrigerant emerges from the top of the plate heat exchanger, but not evaporated refrigerant through integrated drop channels through the side walls of the Evaporator and the steam drum are formed as a result of Difference in density due to gravity flows down.
- the way emerging natural circulation of the refrigerant and thus also the performance of the Device are influenced by the free cross section of the fall channels.
- a Another decisive advantage of the invention is the fact that any Leakage of the plate heat exchanger with regard to the refrigerant through the Arrangement of the heat exchanger surfaces in the liquid space of the steam drum are unproblematic and do not cause refrigerant to leak into the Atmosphere.
- a droplet separator can be located in the steam chamber of the steam drum be arranged.
- the steam drum with a curved bottom can be arranged below the plate heat exchanger be the volume of the liquid space or the filling quantity of the Reduce refrigerant.
- the device to generate only the steam drum 1 to recognize the consists of a pressure-resistant housing with an inlet connection 2 for the refrigerant consisting of a liquid-vapor mixture and with a steam nozzle 3 for the exit of the vaporous refrigerant is.
- a droplet separator in the steam chamber in both exemplary embodiments 4 is arranged.
- the welded Plate heat exchanger 5 designed heat exchanger surface of the evaporator.
- the illustrated embodiment is an im Cross-countercurrent operated plate heat exchanger 5, the liquid Refrigerant from below in vertically upward channels of the Plate heat exchanger 5 occurs and partially evaporates, so that at the top of the plate heat exchanger 5 gaseous refrigerant from the Plate heat exchanger 5 emerges and into the steam space of the steam drum 1 reached.
- the liquid refrigerant is used here (as in particular in FIG. 2 and 4) in natural circulation by gravity in Liquid space of the steam drum 1 circulated. This revolution will caused by drop channels 10 through the side walls of the evaporator and the steam drum are formed.
- the plate heat exchanger 5 is a refrigerant via a supply nozzle 6 fed, preferably a water-brine mixture. This coolant arrives after flowing through the plate heat exchanger 5 in the horizontal direction into a deflection chamber 8, from which the refrigerant again in the opposite Direction flows through the plate heat exchanger 5 before it leaves through a discharge nozzle 7. By the evaporation of the refrigerant in the plate heat exchanger 5, heat is extracted from the refrigerant.
- the steam drum 1 While in the embodiment of Figures 1 and 2, the steam drum 1 is designed with a flat bottom, the steam drum 1 has after the embodiment of Figures 3 and 4 an outwardly curved Bottom, which results in an enlarged liquid space. For that To reduce volume are in the embodiment in the lower part of the Steam drum 1 displacement body 9 arranged.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
Die Erfindung betriffl eine Vorrichtung zur Kälteerzeugung in einem geschlossenen Kältemittelkreislauf zur Kühlung eines Kälteträgers, insbesondere eines Wasser-Sole-Gemisches, wobei im Kältemittelkreislauf ein Verdichter gasförmiges Kältemittel aus einer Dampftrommel ansaugt und verdichtet und mit hohem Druck einem Verflüssiger zuführt, aus dem das flüssige Kältemittel nach einer Druckentspannung über den Flüssigkeitsraum der Dampftrommel einem Verdampfer zugeführt wird, in dem dem Kälteträger durch die Verdampfung des Kältemittels Wärme entzogen wird und aus dem das gasförmige Kältemittel dem Dampfraum der Dampftrommel erneut zugeführt wird, wobei die Wärmetauscherfläche des Verdampfers als Plattenwärmetauscher mit im Kreuzgegenstrom zueinander geführten Medien ausgebildet und im Flüssigkeitsraum der Dampftrommel angeordnet ist.The invention relates to a device for generating refrigeration in a closed Refrigerant circuit for cooling a refrigerant, in particular of a water-brine mixture, with a compressor in the refrigerant circuit gaseous refrigerant drawn from a steam drum and compressed and with supplies high pressure to a condenser, from which the liquid refrigerant after a pressure release across the liquid space of the steam drum Evaporator is supplied in which the refrigerant by the evaporation of the Heat is removed from the refrigerant and from which the gaseous refrigerant Steam space is fed to the steam drum again, the Heat exchanger surface of the evaporator as a plate heat exchanger with im Cross-countercurrent to each other and formed media Liquid space of the steam drum is arranged.
Derartige Vorrichtungen zur Kälteerzeugung, die auch als Kompressionskältemaschinen bezeichnet werden, sind aus der US-A-3 538 718 bekannt. Bei dieser aus der US-A-3 538 718 bekannten Vorrichtung wird der Wärmetauscher in der Mitte des Gehäuses derart angeordnet, daß er einen Abstand von sämtlichen Seitenwänden des Gehäuses hat. Zwar wird auch bei dieser bekannten Konstruktion durch die Verdampfung des Kältemittels im Wärmetauscher flüssiges Kältemittel zur Oberfläche des Flüssigkeitsspiegels mitgerissen, das anschließend aufgrund der Dichteunterschiede auf den Boden der Dampftrommel zurücksinkt, jedoch erfolgt dieser Umlauf ohne Beeinflussung durch die Anordnung des Wärmetauschers im Gehäuse. Aus diesem Grunde ist es erforderlich, sowohl ein Gerät zur Regelung des Flüssigkeitsspiegels als auch einen Druckregler einzusetzen.Such devices for refrigeration, which are also called compression refrigeration machines are known from US-A-3 538 718. At this from US-A-3 538 718 known device, the heat exchanger in the Center of the housing arranged so that it is a distance from all Has side walls of the housing. Although this is also known Construction by liquid evaporation of the refrigerant in the heat exchanger Refrigerant entrained to the surface of the liquid level, which then sinks back to the bottom of the steam drum due to the density differences, however, this circulation takes place without being influenced by the arrangement of the Heat exchanger in the housing. Because of this, it is necessary to have both a Device for regulating the liquid level as well as a pressure regulator to use.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Kälteerzeugung als kompakte Baueinheit zu schaffen, deren Leistung durch die Erzeugung eines definierten Naturumlaufes für das Kältemittel konstruktiv vorgegeben werden kann. The invention has for its object to provide a device for refrigeration as a compact unit, the performance of which can be predetermined by the generation of a defined natural circulation for the refrigerant.
Die Lösung dieser Aufgabenstellung durch die Erfindung ist dadurch gekennzeichnet, daß die Wärmetauscherfläche des Plattenwärmetauschers derart in die als druckfestes Gehäuse ausgebildete Dampftrommel integriert ist, daß sowohl der Zufuhrstutzen und der Abfuhrstutzen auf der einen Seite als auch eine Umlenkkammer für den waagerecht durch den Plattenwärmetauscher strömenden Kälteträger auf der anderen Seite außerhalb des Gehäuses der Dampftrommel angeordnet und zwischen den beiden Seitenwänden des Plattenwärmetauschers und den hierzu parallelen Gehäusewänden der Dampftrommel definierte Fallkanäle für das im Naturumlauf durch Schwerkraft umgewälzte Kältemittel ausgebildet sind.The solution to this problem by the invention is characterized in that the heat exchanger surface of the plate heat exchanger is integrated in the steam drum designed as a pressure-resistant housing in such a way that both the supply nozzle and the discharge nozzle on one side and a deflection chamber for the coolant flowing horizontally through the plate heat exchanger arranged on the other side outside the housing of the steam drum and defined between the two side walls of the plate heat exchanger and the parallel housing walls of the steam drum drop channels are formed for the refrigerant circulated by gravity in natural circulation.
Durch die erfindungsgemäße Kombination von Verdampfer und Dampftrommel ergibt sich nicht nur eine raumsparende Konstruktion, sondern durch die Anordnung der Wärmetauscherflächen des Verdampfers im Flüssigkeitsraum der Dampftrommel ein Verdampfungsprozeß im Naturumlauf, bei welchem das flüssige Kältemittel von unten in den Plattenwärmetauscher eintritt und als gasförmiges Kältemittel oben aus dem Plattenwärmetauscher austritt, wobei das nicht verdampfte Kältemittel über integrierte Fallkanäle, die durch die Seitenwände des Verdampfers und der Dampftrommel gebildet werden, infolge des Dichteunterschiedes aufgrund der Schwerkraft nach unten strömt. Der so entstehende Naturumlauf des Kältemittels und hiermit auch die Leistung der Vorrichtung werden durch den freien Querschnitt der Fallkanäle beeinflußt. Ein weiterer entscheidender Vorteil der Erfindung ist darin zu sehen, daß eventuelle Leckagen des Plattenwärmetauschers bezüglich des Kältemittels durch die Anordnung der Wärmetauscherflächen im Flüssigkeitsraum der Dampftrommel unproblematisch sind und nicht zu einem Austritt von Kältemittel in die Atmosphäre führen.The combination of evaporator and steam drum according to the invention results not only in a space-saving construction, but also in the arrangement the heat exchanger surfaces of the evaporator in the liquid space Steam drum an evaporation process in natural circulation, in which the liquid Refrigerant enters the plate heat exchanger from below and as a gaseous one Refrigerant emerges from the top of the plate heat exchanger, but not evaporated refrigerant through integrated drop channels through the side walls of the Evaporator and the steam drum are formed as a result of Difference in density due to gravity flows down. The way emerging natural circulation of the refrigerant and thus also the performance of the Device are influenced by the free cross section of the fall channels. A Another decisive advantage of the invention is the fact that any Leakage of the plate heat exchanger with regard to the refrigerant through the Arrangement of the heat exchanger surfaces in the liquid space of the steam drum are unproblematic and do not cause refrigerant to leak into the Atmosphere.
Im Dampfraum der Dampftrommel kann erfindungsgemäß ein Tropfenabscheider angeordnet sein.According to the invention, a droplet separator can be located in the steam chamber of the steam drum be arranged.
Bei einer bevorzugten Ausführung der Dampftrommel mit gewölbtem Boden können unterhalb des Plattenwärmetauschers Verdrängungskörper angeordnet sein, um das Volumen des Flüssigkeitsraumes bzw. die Füllmenge des Kältemittels zu verringern.In a preferred embodiment of the steam drum with a curved bottom can be arranged below the plate heat exchanger be the volume of the liquid space or the filling quantity of the Reduce refrigerant.
Auf der Zeichnung sind zwei Ausführungsbeispiele der erfindungsgemäßen Dampftrommel mit integriertem Verdampfer dargestellt, und zwar zeigen:
- Fig. 1
- einen Längsschnitt durch das schematisch dargestellte erste Ausführungsbeispiel,
- Fig. 2
- einen Querschnitt gemäß der Schnittlinie II - II in Fig. 1,
- Fig. 3
- einen der Fig. 1 entsprechenden Längsschnitt durch das zweite Ausführungsbeispiel und
- Fig. 4
- einen Querschnitt gemäß der Schnittlinie IV - IV in Fig. 3.
- Fig. 1
- 2 shows a longitudinal section through the schematically illustrated first exemplary embodiment,
- Fig. 2
- 2 shows a cross section along the section line II-II in FIG. 1,
- Fig. 3
- 1 corresponding longitudinal section through the second embodiment and
- Fig. 4
- 3 shows a cross section along the section line IV-IV in FIG. 3.
Bei beiden schematisch dargestellten Ausführungsbeispielen ist von der Vorrichtung
zur Kälteerzeugung lediglich die Dampftrommel 1 zu erkennen, die
aus einem druckfesten Gehäuse besteht, das mit einem Eintrittsstutzen 2 für
das aus einem Flüssigkeit-Dampf-Gemisch bestehende Kältemittel und mit
einem Dampfstutzen 3 für den Austritt des dampfförmigen Kältemittels versehen
ist.In both schematically illustrated embodiments, the device
to generate only the
Durch Ausbildung eines Flüssigkeitsstandes in der Dampftrommel 1 wird diese
in einen Flüssigkeitsraum und einen darüberbefindlichen Dampfraum unterteilt,
wobei im Dampfraum bei beiden Ausführungsbeispielen ein Tropfenabscheider
4 angeordnet ist.By forming a liquid level in the
Im Flüssigkeitsraum der Dampftrommel 1 befindet sich die als geschweißter
Plattenwärmetauscher 5 ausgebildete Wärmetauscherfläche des Verdampfers.
Beim dargestellten Ausführungsbeispiel handelt es sich um einen im
Kreuzgegenstrom betriebenen Plattenwärmetauscher 5, wobei das flüssige
Kältemittel von unten in senkrecht nach oben verlaufende Kanäle des
Plattenwärmetauschers 5 eintritt und hierbei zum Teil verdampft, so daß an
der Oberseite des Plattenwärmetauschers 5 gasförmiges Kältemittel aus dem
Plattenwärmetauscher 5 austritt und in den Dampfraum der Dampftrommel 1
gelangt. Das flüssige Kältemittel wird hierbei (wie insbesondere die Figuren 2
und 4 erkennen lassen) im Naturumlauf durch Schwerkraft im
Flüssigkeitsraum der Dampftrommel 1 umgewälzt. Diese Umwälzung wird
durch Fallkanäle 10 bewirkt, die durch die Seitenwände des Verdampfers und
der Dampftrommel gebildet werden.In the liquid space of the
Dem Plattenwärmetauscher 5 wird über einen Zufuhrstutzen 6 ein Kälteträger
zugeführt, vorzugsweise ein Wasser-Sole-Gemisch. Dieser Kälteträger gelangt
nach dem Durchströmen des Plattenwärmetauschers 5 in waagerechter Richtung
in eine Umlenkkammer 8, aus der der Kälteträger erneut in entgegengesetzter
Richtung den Plattenwärmetauscher 5 durchströmt, bevor er diesen
durch einen Abfuhrstutzen 7 verläßt. Durch die Verdampfung des Kältemittels
im Plattenwärmetauscher 5 wird dem Kälteträger Wärme entzogen.The
Während beim Ausführungsbeispiel nach den Figuren 1 und 2 die Dampftrommel
1 mit einem Flachboden ausgeführt ist, hat die Dampftrommel 1 nach
dem Ausführungsbeispiel der Figuren 3 und 4 einen nach außen gewölbten
Boden, wodurch sich ein vergrößerter Flüssigkeitsraum ergibt. Um dessen
Volumen zu verringern, sind beim Ausführungsbeispiel im unteren Teil der
Dampftrommel 1 Verdrängungskörper 9 angeordnet.While in the embodiment of Figures 1 and 2, the
Wie die beiden Ausführungsbeispiele erkennen lassen, ergibt sich durch die
Anordnung des Plattenwärmetauschers 5 in der Dampftrommel 1 ein kompakter
Naturumlaufverdampfer, und zwar unter gleichzeitigem Wegfall der bisher
zwischen diesen beiden Bauteilen erforderlichen Leitungen. As can be seen from the two exemplary embodiments, results from the
Arrangement of the
- 11
- DampftrommelSteam drum
- 22nd
- EintrittsstutzenInlet connection
- 33rd
- DampfstutzenSteam nozzle
- 44th
- TropfenabscheiderDroplet separator
- 55
- PlattenwärmetauscherPlate heat exchanger
- 66
- ZufuhrstutzenInlet nozzle
- 77
- AbfuhrstutzenDischarge nozzle
- 88th
- UmlenkkammerDeflection chamber
- 99
- VerdrängungskörperDisplacement body
- 1010th
- FallkanäleFall channels
Claims (3)
- Refrigeration device in a closed refrigerant circuit for cooling a cold transfer medium, in particular a water/brine mixture, in the refrigerant circuit a compressor sucking in gaseous refrigerant from a vapour drum (1), compressing the said refrigerant and supplying it at high pressure to a condenser, out of which, after pressure expansion, the liquid refrigerant is supplied, via the liquid space of the vapour drum (1), to an evaporator, in which heat is extracted from the cold transfer medium as a result of the evaporation of the refrigerant and out of which the gaseous refrigerant is supplied once again to the vapour space of the vapour drum (1), the heat exchanger surface of the evaporator being designed as a plate heat exchanger (5) with media conveyed in cross-current and countercurrent to one another and being arranged in the liquid space of the vapour drum (1), characterized in that the heat exchanger surface of the plate heat exchanger (5) is integrated into the vapour drum (1), designed as a pressure-resistant housing, in such a way that the supply connection piece (6) and the discharge connection piece (7) are arranged on one side and the deflection chamber (8) for the cold transfer medium flowing horizontally through the plate heat exchanger (5) is arranged on the other side, outside the housing of the vapour drum (1), and defined fall ducts (10) for the refrigerant circulated by natural circulation as a result of gravity are formed between the two side walls of the plate heat exchanger (5) and the housing walls of the vapour drum (1) which are parallel thereto.
- Device according to Claim 1, characterized in that a drop separator (4) is arranged in the vapour space of the vapour drum (1).
- Device according to Claim 1 or 2, characterized in that, when the vapour drum (1) is designed with a convexly curved bottom, displacement bodies (9) are arranged below the plate heat exchanger (5).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29512657U DE29512657U1 (en) | 1995-08-05 | 1995-08-05 | Refrigeration device |
| DE29512657U | 1995-08-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0758073A1 EP0758073A1 (en) | 1997-02-12 |
| EP0758073B1 true EP0758073B1 (en) | 1999-10-06 |
Family
ID=8011456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96111414A Expired - Lifetime EP0758073B1 (en) | 1995-08-05 | 1996-07-16 | Refrigeration device |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0758073B1 (en) |
| DE (2) | DE29512657U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005008991B4 (en) * | 2005-02-28 | 2008-05-29 | Wallerus, Sigmund | Plant for cooling and energy production |
| US7594538B2 (en) | 2003-06-18 | 2009-09-29 | Alfa Laval Corporate Ab | Plate package |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1479985B1 (en) * | 2002-01-17 | 2017-06-14 | Alfa Laval Corporate AB | Submerged evaporator comprising a plate heat exchanger and a cylindric casing where the plate heat exchanger is arranged |
| DE202010014128U1 (en) * | 2010-10-12 | 2011-02-24 | Tranter Pressko Gmbh | Assembly of heat exchanger and liquid separator |
| CN106642827B (en) * | 2015-11-04 | 2019-05-31 | 麦克维尔空调制冷(武汉)有限公司 | Economizer and heat-exchange system comprising the economizer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1601063A1 (en) * | 1968-01-22 | 1970-06-18 | Linde Ag | Compression refrigeration machine with flooded evaporator and a liquid level control device on this |
| US3538718A (en) * | 1968-12-26 | 1970-11-10 | Phillips Petroleum Co | Refrigeration evaporator heat exchanger |
| US3563308A (en) * | 1969-04-21 | 1971-02-16 | Stewart Warner Corp | Submerged core heat exchanger |
| SE7904587L (en) * | 1979-05-25 | 1980-11-26 | Alfa Laval Ab | VERMEVEXLARE |
| DE3511829A1 (en) * | 1985-03-30 | 1986-10-09 | Erdmann Horst | Refrigerant evaporator/condenser construction |
| US4843837A (en) * | 1986-02-25 | 1989-07-04 | Technology Research Association Of Super Heat Pump Energy Accumulation System | Heat pump system |
| DE4409338C2 (en) * | 1993-12-24 | 1999-09-23 | Oskar Rothermel | Steam generator |
| DE4414621B4 (en) * | 1994-04-18 | 2005-06-02 | Grasso Gmbh Refrigeration Technology | Device consisting of evaporator and liquid separator |
-
1995
- 1995-08-05 DE DE29512657U patent/DE29512657U1/en not_active Expired - Lifetime
-
1996
- 1996-07-16 DE DE59603273T patent/DE59603273D1/en not_active Expired - Lifetime
- 1996-07-16 EP EP96111414A patent/EP0758073B1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7594538B2 (en) | 2003-06-18 | 2009-09-29 | Alfa Laval Corporate Ab | Plate package |
| DE102005008991B4 (en) * | 2005-02-28 | 2008-05-29 | Wallerus, Sigmund | Plant for cooling and energy production |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0758073A1 (en) | 1997-02-12 |
| DE29512657U1 (en) | 1995-10-19 |
| DE59603273D1 (en) | 1999-11-11 |
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