EP0943882A2 - Tour de refroidissement sèche pour la condensation hybride d'un réfrigérant - Google Patents

Tour de refroidissement sèche pour la condensation hybride d'un réfrigérant Download PDF

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Publication number
EP0943882A2
EP0943882A2 EP99103889A EP99103889A EP0943882A2 EP 0943882 A2 EP0943882 A2 EP 0943882A2 EP 99103889 A EP99103889 A EP 99103889A EP 99103889 A EP99103889 A EP 99103889A EP 0943882 A2 EP0943882 A2 EP 0943882A2
Authority
EP
European Patent Office
Prior art keywords
cooling tower
condenser
dry cooling
dry
tower according
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.)
Granted
Application number
EP99103889A
Other languages
German (de)
English (en)
Other versions
EP0943882A3 (fr
EP0943882B1 (fr
Inventor
Darko Capi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JAEGGI/GUENTNER (SCHWEIZ) AG
Original Assignee
Hans Guentner GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hans Guentner GmbH filed Critical Hans Guentner GmbH
Publication of EP0943882A2 publication Critical patent/EP0943882A2/fr
Publication of EP0943882A3 publication Critical patent/EP0943882A3/fr
Application granted granted Critical
Publication of EP0943882B1 publication Critical patent/EP0943882B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 the hybrid liquefaction of refrigerants, with a water-wettable, air-side heat transfer surface to liquefy the refrigerant by means of ambient air drawn in as a coolant by means of at least one fan and evaporation of circulated water.
  • Hybrid dry air coolers are known (EP 428 647 B1), in which the medium to be cooled, for example water or water-glycol mixture, the primary cooling circuit Flows through the fin heat exchanger and the cooling fins to the air flow to be removed Emits heat. Fans draw the air flow through the heat exchanger and always have the same speed.
  • the wetting water is integrated in the cooler Collecting tray in open channels via two V-shaped heat exchanger elements pumped where it is unaffected by the air flow on the air side heat transfer surface is abandoned. The excess drips directly under the heat exchanger elements Water back into the collecting bowl.
  • Such dry cooling towers are normally set to a maximum allowable air pollution designed, which is given by the fact that when the heat exchanger is wetted, no drip flight arises.
  • hybrid here means the hermaphrodite mode of operation of the drying tower, namely once without wetting the heat exchanger with water and secondly with wetting.
  • the object of the invention is now to design the dry cooling tower so that it suitable for the hybrid liquefaction of refrigerants.
  • the dry cooling tower has a heat exchanger has by which to heat or pre-cool the hot gas of the refrigerant dry ambient air is divided into a desuperheater and a condenser, the latter wettable with water and the desuperheater for the liquefaction and subcooling of the hot gas is connected downstream and both the desuperheater and the condenser are flowed through by cooling air become.
  • variable-speed fans can be used 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 considerably lower.
  • water is also saved because the air pollution decreases the proportion of convective heat emission increases.
  • the wetting water tends to increase on the colder Trickle down the heat exchanger part.
  • the one located in the warmer heat exchanger part The lamella surface remains dry and transfers sensitive heat to the pre-cooled air. Through the reduced evaporation surface, less latent heat is dissipated and water consumption decreases significantly.
  • a device can be located in the area of the remaining part of the upper end face Provide for the water to be used to wet the condenser.
  • the cooling tower head 13 is equipped with a fan 11 which is driven by a motor 14 is, whose speed is adjustable and the cooling air in the direction of arrows A 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 Küblturmkopf 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 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 raw 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 is achieved 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 at 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 at 23 from the finned heat exchanger 4, 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 the condenser with water within the cooling tower in a structurally separate manner Form units.
  • the condenser as well as the heater can consist 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)
EP99103889A 1998-03-20 1999-03-01 Tour de refroidissement sèche pour la condensation hybride d'un réfrigérant Expired - Lifetime EP0943882B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29805111U 1998-03-20
DE29805111U DE29805111U1 (de) 1998-03-20 1998-03-20 Trockenkühlturm für die hybride Verflüssigung von Kältemitteln

Publications (3)

Publication Number Publication Date
EP0943882A2 true EP0943882A2 (fr) 1999-09-22
EP0943882A3 EP0943882A3 (fr) 2000-08-23
EP0943882B1 EP0943882B1 (fr) 2003-09-24

Family

ID=8054527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99103889A Expired - Lifetime EP0943882B1 (fr) 1998-03-20 1999-03-01 Tour de refroidissement sèche pour la condensation hybride d'un réfrigérant

Country Status (3)

Country Link
EP (1) EP0943882B1 (fr)
AT (1) ATE250744T1 (fr)
DE (2) DE29805111U1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
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
JP2011508865A (ja) * 2007-12-18 2011-03-17 アー − ヒート アライド ヒート イクスチェンジ テクノロジー アクチェンゲゼルシャフト 熱交換装置
EP2177854A1 (fr) 2008-10-16 2010-04-21 Ludwig Michelbach Dispositif de refroidissement
EP3002530B1 (fr) * 2014-10-03 2019-04-10 Güntner GmbH & Co. KG Échangeur thermique, dispositif d'échangeur thermique et procédé d'utilisation d'un échangeur thermique
DE202016105392U1 (de) 2016-09-28 2016-11-10 Thermofin Gmbh Hybridkühlanordnung
EP3306246B1 (fr) 2016-10-06 2020-09-30 Jaeggi HybridTechnologie AG Dispositif d'échange thermique
DE202016107184U1 (de) 2016-12-20 2018-03-21 Güntner Gmbh & Co. Kg Wärmetauschereinrichtung
DE202018103180U1 (de) 2017-07-06 2018-06-15 Jaeggi Hybridtechnologie Ag Kühlanordnung für die hybride Rückkühlung oder Verflüssigung eines Kühl- oder Kältemittels

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0428647A1 (fr) 1989-05-30 1991-05-29 Jaeggi Ag Bern Installation refrigerante de type hybride.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0428647A1 (fr) 1989-05-30 1991-05-29 Jaeggi Ag Bern Installation refrigerante de type hybride.

Also Published As

Publication number Publication date
EP0943882A3 (fr) 2000-08-23
DE59907072D1 (de) 2003-10-30
EP0943882B1 (fr) 2003-09-24
ATE250744T1 (de) 2003-10-15
DE29805111U1 (de) 1998-06-25

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