EP0943882B1 - Trockenkühlturm für die hybride Verflüssigung von Kältemitteln - Google Patents
Trockenkühlturm für die hybride Verflüssigung von Kältemitteln Download PDFInfo
- Publication number
- EP0943882B1 EP0943882B1 EP99103889A EP99103889A EP0943882B1 EP 0943882 B1 EP0943882 B1 EP 0943882B1 EP 99103889 A EP99103889 A EP 99103889A EP 99103889 A EP99103889 A EP 99103889A EP 0943882 B1 EP0943882 B1 EP 0943882B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- condenser
- cooling tower
- dry cooling
- deheater
- dry
- 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
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
-
- 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
- F25B39/04—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
- F28D5/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation in which the evaporating medium flows in a continuous film or trickles freely over the conduits
-
- 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
- F25B2339/04—Details of condensers
- F25B2339/041—Details of condensers of evaporative condensers
-
- 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
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
Definitions
- the invention relates to a dry cooling tower for hybrid liquefaction refrigerant according to the preamble of claim 1.
- a dry cooling tower is from US-A-2166397 known.
- Hybrid dry air coolers are also known (EP 428 647 B1), in which this too cooling medium, for example water or water-glycol mixture, of the primary Cooling circuit flows through a finned heat exchanger and over the cooling fins gives off the heat to be dissipated to the air flow. Fans suck the air flow through the heat exchanger and always have the same speed.
- the Wetting water is converted from a collecting bowl integrated in the cooler into open channels pumped over two V-shaped heat exchanger elements where it Released unaffected by the air flow on the air-side heat transfer surface becomes. Excess water drips directly under the heat exchanger elements back into the collecting bowl.
- Such dry cooling towers are normally allowed to a maximum Air pollution designed, which is given by the fact that when wetting the Heat exchanger no drop flight arises.
- hybrid here means the hermaphrodite mode of operation of the drying tower, namely once without wetting the heat exchanger with water and the other with Wetting.
- the object of the invention is now the dry cooling tower which is particularly suitable for the hybrid liquefaction of refrigerants, so that both reduce its manufacturing costs as well as its operating costs.
- variable speed fans can be used to save energy a fact that is essential in cases where the Cooling tower / condenser works below the design point and in the partial load range, because then the power consumption and thus the power consumption of the fans is significantly lower.
- speed control water is also saved because the proportion of convective heat emission increases with decreasing air pollution.
- the fin area located in the warmer heat exchanger part stays dry and transfers sensitive heat to the pre-cooled air. Through the reduced evaporation surface, less latent heat is dissipated and the Water consumption drops significantly.
- the cooling tower head 13 is equipped with a fan 11 which is driven by a motor 14 is whose speed is adjustable and which in the direction of arrows A cooling air in the Sucks in the tower, which leaves it again in the direction of arrow B on the tower head.
- a heat exchanger 2 which is inclined to the longitudinal axis 6 so that it with its counterpart on the other side of this axis forms a V-arrangement, which forms the cooling tower head 13 expanded.
- the heat exchanger 2 consists of a desuperheater 3 and a condenser 4, which is arranged below the desuperheater and thus further from the cooling tower head is more distant than the desuperheater.
- the desuperheater is used to de-heat or pre-cool the hot gas of the refrigerant that is supplied at the hot gas inlet 15.
- the desuperheater 3 is expediently, just like the condenser 4 connected to it, a finned heat exchanger.
- the condenser can be wetted with water, which is applied to its upper end face 8 with the aid of a device 9 and, together with the cooling air, serves to liquefy and subcool the gaseous refrigerant, for example NH 3 .
- the desuperheater 3 and the condenser 4 are offset from one another arranged that the lower end face 7 of the desuperheater 3 only part of the upper end face 8 of the Condenser 4 covered, so that in the area of the remaining part of the upper end face 8 over a device 9 water can be given to the condenser to its heat exchange surface to wet.
- the pipe coil 12 of the desuperheater 3 carrying the refrigerant goes directly into the coil 10 leading the refrigerant of the condenser 4.
- the wetting water applied to the fins of the condenser with the aid of the feed device 9 is from a tub 21 at the bottom of the dry cooling tower with the help of a pump 19 supplied via a riser 16 and after draining from the condenser in the above Tub collected again.
- a fresh water connection 17 is used to evaporate Add water while the water level in the tub 21 using a level probe 18th is kept at a desired level. This probe influences the fresh water supply 17.
- the level probe also serves to protect the pump 19 from running dry.
- the hybrid liquefaction of the refrigerant, using the heat exchanger described above 2 has the advantage that the hot refrigerant gas, for example with a Temperature of 130 ° C at 15 enters the desuperheater 3, initially only cooled with cooling air so far is, for example to 40 ° C, that then liquefaction in the condenser 4 with the help of cooling air and wetting water can take place without the latter evaporating too much.
- the Liquefied coolant then emerges from the finned heat exchanger 4 at 23, for example a temperature of 38 ° C.
- the cooling capacity of the ambient air drawn in as cooling air is thermal by air temperature control and / or mechanically by means of the heat exchanger downstream baffles depending on the temperature of the hot gas of the refrigerant adjustable.
- the heater and also the condenser can improve the Wetting of the condenser with water within the cooling tower Form units.
- the condenser and the heater can be made up of several independent, interconnected units exist that are connected in parallel or in series are.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
- Fig. 1
- eine schematische Seitenansicht der einen Hälfte des Trockenkühlturms und
- Fig. 2
- eine im Vergleich zu Fig. 1 vergrößerte schematische Seitenansicht des Wärmeaustauschers des Trockenkühlturms, bestehend aus einem hybriden Verflüssiger und einem separaten, trockenen Erhitzer für das Heißgas oberhalb des Verflüssigers.
Claims (10)
- Trockenkühlturm für die hybride Verflüssigung eines Kältemittels, mit einem Wärmeaustauscher (2), der zur Enthitzung bzw. Vorkühlung des Heißgases des Kältemittels durch trockene Umgebungsluft in einen Enthitzer (3) und einen dem Enthitzer nachgeschalteten Verflüssiger (4) aufgeteilt ist, wobei der Verflüssiger (4) mit Wasser benetzbar ist und sowohl der Enthitzer (3) als auch der Verflüssiger (4) von Kühlluft durchströmt werden, die von wenigstens einen ventilator aus der Umgebung ausgesangt wird, dadurch gekennzeichnet, dass der Enthitzer (3) sowie der Verflüssiger (4) mit ihren Längsachsen (5) zur Längsachse (6) des Trockenkühlturms geneigt und so zueinander versetzt sind, daß die untere Stirnseite (7) des Enthitzers (3) nur einen Teil der oberen Stirnseite (8) des Verflüssigers (4) bedeckt und dass im Bereich des freibleibenden Teils der oberen Stirnseite (8) eine Vorrichtung zur Aufgabe des Wassers vorgesehen ist, mit dem der Verflüssiger benetzt wird.
- Trockenkühlturm nach Anspruch 1, dadurch gekennzeichnet, dass der Enthitzer (3) und der verflüssiger (4) Lamellenwärmeaustauscher sind.
- Trockenkühlturm nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die das Kältemittel führende Rohrschlange (12) des Enthitzers (3) direkt in die das Kältemittel des Verflüssigers (4) führende Rohrschlange (10) übergeht.
- Trockenkühlturm nach einem der Ansprüche 1-3, dadurch gekennzeichnet, dass in bezug auf die Längsachse (6) des Trockenkühlturms (1 zwei Wärmeaustauscher (2) einander gegenüberliegend angeordnet sind, so dass sie mit ihren Längsachsen (5) ein V bilden.
- Trockenkühlturm nach einem der Ansprüche 1 - 4, dadurch gekennzeichnet, dass der Kühlluftstrom mit Hilfe wenigstens eines Ventilators (11), dessen Drehzahl regulierbar ist, durch den Turm hindurchsaugbar ist.
- Trockenkühlturm nach Anspruch 5, dadurch gekennzeichnet, dass die Leistung des oder der Ventilatoren (11) so bemessen ist, dass selbst bei höchster Drehzahl und damit maximaler Luftbelastung an der benetzten Oberfläche des Verflüssigers (4) kein Tropfenaustrag erfolgt.
- Trockenkühlturm nach Anspruch 6, dadurch gekennzeichnet, dass bei maximaler Ventilatordrehzahl der Wärmeaustauscher über die ganze Tiefe und bei reduzierter Ventilatordrehzahl nur der kältere Teil beim Rücklauf benetzbar ist.
- Trockenkühlturm nach einem der Ansprüche 1-7, dadurch gekennzeichnet, dass die Kühlkapazität der als Kühlluft angesaugten Umgebungsluft thermisch durch Lufttemperatursteuerung und/oder mechanisch mittels dem Wärmeaustauscher (2) vor- oder nachgeschalteter Schikanen in Abhängigkeit von der Temperatur des Heißgases des Kältemittels einstellbar ist.
- Trockenkühlturm nach einem der Ansprüche 1-8, dadurch gekennzeichnet, dass der Enthitzer (3) und der Verflüssiger (1) zur Verbesserung der Benetzung des Verflüssigers (4) mit Wasser innerhalb des Kühlturms baulich voneinander getrennte Einheiten bilden.
- Trockenkühlturm nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass sowohl der Verflüssiger (4) als auch der Enthitzer (3) aus mehreren selbständigen, miteinander verbundenen Einheiten bestehen, die zueinander parallel oder in Reihe geschaltet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29805111U DE29805111U1 (de) | 1998-03-20 | 1998-03-20 | Trockenkühlturm für die hybride Verflüssigung von Kältemitteln |
DE29805111U | 1998-03-20 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0943882A2 EP0943882A2 (de) | 1999-09-22 |
EP0943882A3 EP0943882A3 (de) | 2000-08-23 |
EP0943882B1 true EP0943882B1 (de) | 2003-09-24 |
Family
ID=8054527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99103889A Expired - Lifetime EP0943882B1 (de) | 1998-03-20 | 1999-03-01 | Trockenkühlturm für die hybride Verflüssigung von Kältemitteln |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0943882B1 (de) |
AT (1) | ATE250744T1 (de) |
DE (2) | DE29805111U1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3002530A1 (de) | 2014-10-03 | 2016-04-06 | Güntner GmbH & Co. KG | Wärmeaustauscher, Wärmeaustauschervorrichtung und Verfahren zur Benetzung eines Wärmeaustauschers |
EP3306246A1 (de) | 2016-10-06 | 2018-04-11 | Jaeggi HybridTechnologie AG | Wärmeaustauschvorrichtung, abdeckung und schiene |
DE202018103180U1 (de) | 2017-07-06 | 2018-06-15 | Jaeggi Hybridtechnologie Ag | Kühlanordnung für die hybride Rückkühlung oder Verflüssigung eines Kühl- oder Kältemittels |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2365955A (en) * | 1998-09-09 | 2002-02-27 | Liu Fu Chin | Evaporative condensing apparatus |
ITPD20050132A1 (it) * | 2005-05-11 | 2006-11-12 | Costan Spa | Procedimento per raffreddare la co2 in un impianto frigorifero ed uno scambiatore di calore a batteria alettata per realizzare tale procedimento |
ATE523748T1 (de) * | 2007-12-18 | 2011-09-15 | Heat Alliedheat Exchange Technology Ag A | Wärmetauschsystem |
EP2177854A1 (de) | 2008-10-16 | 2010-04-21 | Ludwig Michelbach | Kühlvorrichtung |
DE202016105392U1 (de) | 2016-09-28 | 2016-11-10 | Thermofin Gmbh | Hybridkühlanordnung |
DE202016107184U1 (de) | 2016-12-20 | 2018-03-21 | Güntner Gmbh & Co. Kg | Wärmetauschereinrichtung |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2166397A (en) * | 1937-02-12 | 1939-07-18 | Niagara Blower Co | Evaporative cooler |
US3800861A (en) * | 1969-12-05 | 1974-04-02 | Gen Electric | Air cooled vapor condenser module |
FR2135442A1 (en) * | 1971-05-05 | 1972-12-22 | Jacir Joseph | Air-cooled condenser with air outlet heater to prevent - emission of condensate cloud |
DE3237860A1 (de) * | 1982-10-13 | 1984-04-19 | Hütötechnika Ipari Szövetkezet, 2891 Tata | Kombinierter dampfvorkuehler zu verdunstungskondensatoren |
DE59002837D1 (de) | 1989-05-30 | 1993-10-28 | Jaeggi Ag Bern Bern | Kühlanlage des hybriden typs. |
-
1998
- 1998-03-20 DE DE29805111U patent/DE29805111U1/de not_active Expired - Lifetime
-
1999
- 1999-03-01 EP EP99103889A patent/EP0943882B1/de not_active Expired - Lifetime
- 1999-03-01 DE DE59907072T patent/DE59907072D1/de not_active Expired - Lifetime
- 1999-03-01 AT AT99103889T patent/ATE250744T1/de active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3002530A1 (de) | 2014-10-03 | 2016-04-06 | Güntner GmbH & Co. KG | Wärmeaustauscher, Wärmeaustauschervorrichtung und Verfahren zur Benetzung eines Wärmeaustauschers |
EP3306246A1 (de) | 2016-10-06 | 2018-04-11 | Jaeggi HybridTechnologie AG | Wärmeaustauschvorrichtung, abdeckung und schiene |
DE202018103180U1 (de) | 2017-07-06 | 2018-06-15 | Jaeggi Hybridtechnologie Ag | Kühlanordnung für die hybride Rückkühlung oder Verflüssigung eines Kühl- oder Kältemittels |
Also Published As
Publication number | Publication date |
---|---|
EP0943882A3 (de) | 2000-08-23 |
ATE250744T1 (de) | 2003-10-15 |
DE29805111U1 (de) | 1998-06-25 |
DE59907072D1 (de) | 2003-10-30 |
EP0943882A2 (de) | 1999-09-22 |
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