EP0758073A1 - Dispositif de production du froid - Google Patents

Dispositif de production du froid Download PDF

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Publication number
EP0758073A1
EP0758073A1 EP96111414A EP96111414A EP0758073A1 EP 0758073 A1 EP0758073 A1 EP 0758073A1 EP 96111414 A EP96111414 A EP 96111414A EP 96111414 A EP96111414 A EP 96111414A EP 0758073 A1 EP0758073 A1 EP 0758073A1
Authority
EP
European Patent Office
Prior art keywords
steam drum
refrigerant
heat exchanger
steam
plate heat
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
EP96111414A
Other languages
German (de)
English (en)
Other versions
EP0758073B1 (fr
Inventor
Jiri Svoboda
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.)
Balcke Duerr GmbH
Original Assignee
Balcke Duerr 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 Balcke Duerr GmbH filed Critical Balcke Duerr GmbH
Publication of EP0758073A1 publication Critical patent/EP0758073A1/fr
Application granted granted Critical
Publication of EP0758073B1 publication Critical patent/EP0758073B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 a water-brine mixture, a compressor in the refrigerant circuit sucking and compressing gaseous refrigerant from a steam drum and feeding it at high pressure to a condenser from which the liquid refrigerant after a pressure release via the liquid space of the steam drum, an evaporator is supplied in which heat is extracted from the refrigerant by the evaporation of the refrigerant and from which the gaseous refrigerant is fed back to the steam space of the steam drum.
  • Such devices for refrigeration which are also referred to as compression refrigeration machines, are known in a wide variety of designs, with the compressor, steam drum, condenser and evaporator being connected to one another as separate components by lines.
  • the invention has for its object to provide a device for refrigeration as a compact unit, so that a large performance range can be covered by modular design.
  • the solution to this problem by the invention is characterized in that the heat exchanger surface of the evaporator is designed as a welded plate heat exchanger and is arranged in the liquid space of the steam drum.
  • the combination of evaporator and steam drum according to the invention not only results in a space-saving construction with the corresponding connection lines being eliminated, but also by the arrangement of the heat exchanger surfaces of the evaporator in the liquid space of the steam drum an evaporation process in natural circulation, in which the liquid refrigerant enters the plate heat exchanger from below and emerges as a gaseous refrigerant from the top of the plate heat exchanger, the non-evaporated refrigerant flowing downward via integrated drop channels, which are formed by the side walls of the evaporator and the steam drum, due to the density difference due to gravity.
  • the natural circulation created in this way is influenced by the free cross-section of the fall channels and thus also the performance.
  • the steam drum is designed as a pressure-resistant housing which has either a flat or a curved base.
  • a droplet separator can be arranged in the steam chamber of the steam drum.
  • displacement bodies can be arranged below the plate heat exchanger in order to reduce the volume of the liquid space or the filling quantity of the refrigerant.
  • the steam drum 1 can be seen from the device for cooling, which consists of a pressure-resistant housing, which has an inlet connection 2 for the refrigerant consisting of a liquid-steam mixture and a steam connection 3 for the outlet of the vaporous refrigerant is provided.
  • the steam drum 1 By forming a liquid level in the steam drum 1, the latter is divided into a liquid space and a steam space located above it, a droplet separator 4 being arranged in the steam space in both exemplary embodiments.
  • the heat exchanger surface of the evaporator which is designed as a welded plate heat exchanger 5.
  • the exemplary embodiment shown is a plate heat exchanger 5 operated in cross-countercurrent, the liquid refrigerant entering the channels of the plate heat exchanger 5 running vertically upwards from below and partially evaporating, so that 5 gaseous refrigerant from the plate heat exchanger 5 on the top of the plate heat exchanger emerges and enters the steam room of the steam drum 1.
  • the liquid refrigerant is circulated (as can be seen particularly in FIGS. 2 and 4) in natural circulation by gravity in the liquid space of the steam drum 1. This circulation is caused by drop channels 10, which are formed by the side walls of the evaporator and the steam drum.
  • a cooling medium preferably a water-brine mixture, is supplied to the plate heat exchanger 5 via a supply nozzle 6. After flowing through the plate heat exchanger 5, this coolant passes in a horizontal direction into a deflection chamber 8, from which the coolant flows again through the plate heat exchanger 5 in the opposite direction before it flows through it leaves through a discharge nozzle 7. Evaporation of the refrigerant in the plate heat exchanger 5 removes heat from the refrigerant.
  • the steam drum 1 While in the embodiment according to FIGS. 1 and 2 the steam drum 1 is designed with a flat bottom, the steam drum 1 according to the embodiment of FIGS. 3 and 4 has an outwardly curved base, which results in an enlarged liquid space. In order to reduce its volume, displacement bodies 9 are arranged in the lower part of the steam drum 1 in the exemplary embodiment.
  • the arrangement of the plate heat exchanger 5 in the steam drum 1 results in a compact natural circulation evaporator, with the simultaneous elimination of the lines previously required between these two components.

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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP96111414A 1995-08-05 1996-07-16 Dispositif de production du froid Expired - Lifetime EP0758073B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29512657U DE29512657U1 (de) 1995-08-05 1995-08-05 Vorrichtung zur Kälteerzeugung
DE29512657U 1995-08-05

Publications (2)

Publication Number Publication Date
EP0758073A1 true EP0758073A1 (fr) 1997-02-12
EP0758073B1 EP0758073B1 (fr) 1999-10-06

Family

ID=8011456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96111414A Expired - Lifetime EP0758073B1 (fr) 1995-08-05 1996-07-16 Dispositif de production du froid

Country Status (2)

Country Link
EP (1) EP0758073B1 (fr)
DE (2) DE29512657U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003060411A1 (fr) * 2002-01-17 2003-07-24 York Refrigeration Aps Evaporateur immerge a echangeur thermique integre
WO2012051994A3 (fr) * 2010-10-12 2012-10-04 Tranter Pressko Gmbh Unité modulaire comprenant un échangeur de chaleur et un éliminateur de gouttelettes
CN106642827A (zh) * 2015-11-04 2017-05-10 麦克维尔空调制冷(武汉)有限公司 经济器以及包含该经济器的换热系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE525354C2 (sv) 2003-06-18 2005-02-08 Alfa Laval Corp Ab Värmeväxlaranordning och plattpaket
DE102005008991B4 (de) * 2005-02-28 2008-05-29 Wallerus, Sigmund Anlage zur Kälte- und Energiegewinnung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1601063A1 (de) * 1968-01-22 1970-06-18 Linde Ag Kompressionskaeltemaschine mit ueberflutetem Verdampfer und einer Fluessigkeitsstandregeleinrichtung an diesem
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
DE3019050A1 (de) * 1979-05-25 1980-12-04 Alfa Laval Ab Waermetauscher
DE3511829A1 (de) * 1985-03-30 1986-10-09 Erdmann Horst Kaeltemittelverdampfer- / -kondensatorkonstruktion
US4843837A (en) * 1986-02-25 1989-07-04 Technology Research Association Of Super Heat Pump Energy Accumulation System Heat pump system
DE4409338A1 (de) * 1993-12-24 1995-06-29 Oskar Rothermel Dampferzeuger
DE4414621A1 (de) * 1994-04-18 1995-10-19 Kuehlautomat Berlin Gmbh Kab Vorrichtung, bestehend aus Verdampfer und Flüssigkeitsabscheider

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1601063A1 (de) * 1968-01-22 1970-06-18 Linde Ag Kompressionskaeltemaschine mit ueberflutetem Verdampfer und einer Fluessigkeitsstandregeleinrichtung an diesem
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
DE3019050A1 (de) * 1979-05-25 1980-12-04 Alfa Laval Ab Waermetauscher
DE3511829A1 (de) * 1985-03-30 1986-10-09 Erdmann Horst Kaeltemittelverdampfer- / -kondensatorkonstruktion
US4843837A (en) * 1986-02-25 1989-07-04 Technology Research Association Of Super Heat Pump Energy Accumulation System Heat pump system
DE4409338A1 (de) * 1993-12-24 1995-06-29 Oskar Rothermel Dampferzeuger
DE4414621A1 (de) * 1994-04-18 1995-10-19 Kuehlautomat Berlin Gmbh Kab Vorrichtung, bestehend aus Verdampfer und Flüssigkeitsabscheider

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003060411A1 (fr) * 2002-01-17 2003-07-24 York Refrigeration Aps Evaporateur immerge a echangeur thermique integre
EP1479985A2 (fr) * 2002-01-17 2004-11-24 York Refrigeration APS Echangeur de chaleur à plaques pour utilisation dans un casing en tant qu'évaporateur immergé
CN1308643C (zh) * 2002-01-17 2007-04-04 阿尔法·拉瓦尔股份公司 包括沉入式蒸发器的壳体
US7472563B2 (en) 2002-01-17 2009-01-06 Alfa Laval Corporate Ab Submerged evaporator with integrated heat exchanger
EP1479985A3 (fr) * 2002-01-17 2009-04-29 Alfa Laval Corporate AB Echangeur de chaleur à plaques pour utilisation dans un casing en tant qu'évaporateur immergé
WO2012051994A3 (fr) * 2010-10-12 2012-10-04 Tranter Pressko Gmbh Unité modulaire comprenant un échangeur de chaleur et un éliminateur de gouttelettes
CN106642827A (zh) * 2015-11-04 2017-05-10 麦克维尔空调制冷(武汉)有限公司 经济器以及包含该经济器的换热系统
CN106642827B (zh) * 2015-11-04 2019-05-31 麦克维尔空调制冷(武汉)有限公司 经济器以及包含该经济器的换热系统

Also Published As

Publication number Publication date
DE59603273D1 (de) 1999-11-11
EP0758073B1 (fr) 1999-10-06
DE29512657U1 (de) 1995-10-19

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