EP1259769A1 - Dispositif de production d'eau froide servant a la refrigeration de locaux - Google Patents

Dispositif de production d'eau froide servant a la refrigeration de locaux

Info

Publication number
EP1259769A1
EP1259769A1 EP01902417A EP01902417A EP1259769A1 EP 1259769 A1 EP1259769 A1 EP 1259769A1 EP 01902417 A EP01902417 A EP 01902417A EP 01902417 A EP01902417 A EP 01902417A EP 1259769 A1 EP1259769 A1 EP 1259769A1
Authority
EP
European Patent Office
Prior art keywords
cooling
evaporative cooler
heat exchanger
water
condenser
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
EP01902417A
Other languages
German (de)
English (en)
Other versions
EP1259769B1 (fr
Inventor
Horst Doerk
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.)
Menerga GmbH
Original Assignee
Menerga Apparatebau GmbH
MENERGA APPBAU 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
Priority claimed from DE10042828A external-priority patent/DE10042828A1/de
Application filed by Menerga Apparatebau GmbH, MENERGA APPBAU GmbH filed Critical Menerga Apparatebau GmbH
Priority to DK01902417T priority Critical patent/DK1259769T3/da
Publication of EP1259769A1 publication Critical patent/EP1259769A1/fr
Application granted granted Critical
Publication of EP1259769B1 publication Critical patent/EP1259769B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B9/00—Auxiliary systems, arrangements, or devices
    • F28B9/04—Auxiliary systems, arrangements, or devices for feeding, collecting, and storing cooling water or other cooling liquid
    • F28B9/06—Auxiliary systems, arrangements, or devices for feeding, collecting, and storing cooling water or other cooling liquid with provision for re-cooling the cooling water or other cooling liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0089—Systems using radiation from walls or panels
    • 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
    • F25B2339/047—Water-cooled condensers

Definitions

  • the invention relates to a device for generating cold water for room cooling, in particular for cooling surfaces and coolers in building equipment, in particular for cooling ceilings with a refrigerator and an evaporative cooler connected in front of it, which is flowed through by liquid and air to be cooled.
  • the object of the invention is to improve the cooling capacity of a device of the type mentioned at the outset with low installation and cost expenditure.
  • the object is achieved in that the cooling air flow of the evaporative cooler can be acted upon with water and that the cooling liquid flows either through the condenser of the chiller or directly to the consumer or to both.
  • the provision of the required cooling capacity becomes more efficient in a simple and inexpensive manner. This is particularly advantageous if larger cooling capacities, such as in summer, are required.
  • the heat of condensation is removed at a low temperature level. Due to the low condensation temperature, the chiller works with a correspondingly low coefficient of performance.
  • the evaporative cooler is a plate heat exchanger made of polypropylene.
  • the material for the plate heat exchanger plays an important role.
  • polypropylene a material is used in which no solid deposits can occur due to the use of water.
  • a heat exchanger through which the water flows, is arranged in the cooling circuit on the refrigerator before the expansion valve, before the water is introduced into the air flow of the evaporative cooler.
  • a further increase in the cooling capacity is possible by an air condenser upstream of the water condenser, which is arranged in particular in the exhaust air duct or the exhaust air opening of the evaporative cooler.
  • Another advantage is the increase in the exhaust air temperature and the resulting reduction in the relative air humidity. This reduces the risk of condensation in the exhaust air duct. Evaporation of the aerosols present in the exhaust air after the evaporative cooler removes the basis of life for any bacteria, especially Legionella pneumophila. It is particularly advantageous here if the air condenser is arranged in the exhaust air duct of the evaporative cooler.
  • Another advantage is the compactness of the system. This avoids energy losses due to the heating of the cold water pipes between the individual components of the system and the usual energy expenditure for the pumps.
  • Fig. 1 shows a first embodiment
  • Fig. 2 shows a second embodiment.
  • the device or system has a refrigerator, with a refrigerant circuit 1, in which a compressor (compressor) 2 is arranged.
  • a condenser (condenser) 3 is arranged in the flow direction behind the compressor 2 and is cooled by the second liquid circuit 4, which is described in more detail below. From the condenser 3, the refrigerant passes through an expansion valve 5 to an evaporator 6, to which a third circuit 7 is connected.
  • the cooling power delivered by the evaporator 6 to the third circuit 7 is fed to a buffer store 9 via a pump 8.
  • the cooling capacity of the intermediate storage 9 is via a fourth circuit 10 Cooling surface 1 1 supplied via a distribution system 12.
  • the second circuit 4 connected to the condenser 3 is guided by a pump 13 through an evaporative cooler 14, which is designed as a plate heat exchanger and is resistant to contamination and corrosion.
  • the plate heat exchanger 14 has air flowing through it, which passes between the plates via an inlet 15 and is released into the environment via an outlet 16. This flow is caused by a fan 17.
  • water is introduced into the air flow via a distribution system 18, in particular sprayed, as a result of which the cooling capacity of the air reached in the heat exchanger is increased due to the evaporative cooling.
  • a pump 19 is located in the water supply line for introducing the water.
  • the intermediate store 9 can be dispensed with.
  • the liquid circuit 7 then leads directly to the distribution system 12.
  • a heat exchanger 25 can be used upstream of the expansion valve 5, through which the water flows, which is then fed to the distribution system 18. This enables a further improvement in the cooling performance.
  • a heat exchanger 26 can be used in the cooling circuit of the refrigerator in front of the water condenser 3, through which the air which flows out of the evaporative cooler 14 flows.
  • the resulting increased heat dissipation increases the overall performance of the device.
  • the fact is used that the heat from the heat exchanger 14 of the refrigerator 3, 13, 14 is still more receptive to heat that comes from the same refrigeration circuit of the refrigerator.
  • the device or system is preferably operated in three different stages:
  • the liquid 21 to be cooled can circulate either via the heat exchanger 23 and then via the evaporator 6 of the refrigerator or by switching the valve 24 only via the evaporator 6.
  • All parts of the device or system that is, all parts of the refrigeration machine, the evaporative cooler 14 and the open-loop and closed-loop control, and also all liquids and current-carrying lines, are arranged in a compact manner within a housing 20.
  • the housing can consist of several easily transportable units.
  • a bypass 28 bridging the water condenser 3 is arranged, through which the second liquid circuit 4 flows in partial load operation when a valve (three-way valve) 27 is opened. The condensation thus takes place only in the heat exchanger (condenser) 26.
  • the compressor 2 works in several stages. This has the advantage that the circuit 4 is not thermally stressed, so that the energy consumption of the overall system is reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

La présente invention concerne un dispositif permettant la production d'eau froide servant à la réfrigération de locaux, destinée en particulier à des surfaces de réfrigération (11) et à des systèmes de réfrigération faisant partie des installations de bâtiment, et en particulier à des plafonds réfrigérants, ledit dispositif comprenant une machine de réfrigération (1) et un système de réfrigération à évaporation (14) étant situé en amont de ladite machine et étant parcouru par du liquide à refroidir et de l'air. Le flux d'air réfrigérant du système de réfrigération à évaporation (14) est mis en contact avec de l'eau et le liquide à refroidir circule en passant par un échangeur thermique (23) ou se dirige directement vers un réservoir intermédiaire (9) ou directement vers l'utilisateur (11).
EP01902417A 2000-03-02 2001-02-06 Dispositif de production d'eau froide servant a la refrigeration de locaux Expired - Lifetime EP1259769B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK01902417T DK1259769T3 (da) 2000-03-02 2001-02-06 Anordning til frembringelse af koldt vand til rumköling

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10010216 2000-03-02
DE10010216 2000-03-02
DE10042828A DE10042828A1 (de) 2000-03-02 2000-08-30 Vorrichtung zum Erzeugen von Kaltwasser für Kühlflächen (bzw. zur Flächenkühlung oder Bauteilkühlung)
DE10042828 2000-08-30
PCT/EP2001/001249 WO2001065188A1 (fr) 2000-03-02 2001-02-06 Dispositif de production d'eau froide servant a la refrigeration de locaux

Publications (2)

Publication Number Publication Date
EP1259769A1 true EP1259769A1 (fr) 2002-11-27
EP1259769B1 EP1259769B1 (fr) 2004-11-24

Family

ID=26004644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01902417A Expired - Lifetime EP1259769B1 (fr) 2000-03-02 2001-02-06 Dispositif de production d'eau froide servant a la refrigeration de locaux

Country Status (10)

Country Link
EP (1) EP1259769B1 (fr)
AT (1) ATE283463T1 (fr)
AU (1) AU2001230251A1 (fr)
CZ (1) CZ304827B6 (fr)
ES (1) ES2230266T3 (fr)
HU (1) HU228723B1 (fr)
NO (1) NO315440B1 (fr)
PT (1) PT1259769E (fr)
SK (1) SK286594B6 (fr)
WO (1) WO2001065188A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100242532A1 (en) 2009-03-24 2010-09-30 Johnson Controls Technology Company Free cooling refrigeration system
EP2464924B1 (fr) 2009-08-14 2018-10-24 Johnson Controls Technology Company Système de réfrigération à refroidissement naturel
CN101988722A (zh) * 2010-10-27 2011-03-23 郭海新 一种自然冷源冷水机组
US20140096562A1 (en) * 2012-10-09 2014-04-10 Inertech Ip Llc Cooling system including a controlled atmospheric heat rejection cycle with water re-capture
DE102017212131A1 (de) * 2017-07-14 2019-01-17 Efficient Energy Gmbh Wärmepumpenanordnung mit einem steuerbaren Wärmetauscher und Verfahren zur Herstellung einer Wärmepumpenanordnung
DE102021127490A1 (de) * 2021-10-22 2023-04-27 Efficient Energy Gmbh Der umgebung ausserhalb einer gebäudehülle exponierte wasser-kältemaschine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH146211A (de) * 1930-01-11 1931-04-15 Simmen Oscar Raumbelüftungsanlage mit künstlicher Kühlung der in den Raum einzuführenden Luft.
DE972293C (de) * 1952-09-21 1959-07-02 Gea Luftkuehler Ges M B H Verdunstungskuehler, insbesondere Verdunstungskondensator fuer Kaeltemaschinen
CH326705A (de) * 1954-11-10 1957-12-31 Sulzer Ag Kühleinrichtung, insbesondere Verflüssiger für Kälteanlagen
CH392576A (de) * 1962-04-27 1965-05-31 Sulzer Ag Verfahren zum Betrieb von Kältemaschinen
DE1947848U (de) * 1966-07-29 1966-10-13 Sueddeutsche Kuehler Behr Klimaanlage fuer kraftfahrzeuge.
CH655690B (fr) * 1982-05-19 1986-05-15
GB2122335B (en) * 1982-06-15 1985-05-01 Wright Air Conditioning Limite Air conditioning system
GB8719345D0 (en) * 1987-08-14 1987-09-23 British Telecomm Cooling equipment
US5377500A (en) * 1993-06-03 1995-01-03 Fast Maker Enterprise Co., Ltd. Water cooled air conditioner
US5651264A (en) * 1993-06-29 1997-07-29 Siemens Electric Limited Flexible process controller
DE29716682U1 (de) * 1997-09-17 1997-11-06 Otto Pfannenberg Elektro-Spezialgerätebau GmbH, 21035 Hamburg Vorrichtung zum Austausch von Wärmeenergie zwischen einem Gehäuseinnenraum und einer Umgebung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0165188A1 *

Also Published As

Publication number Publication date
SK286594B6 (sk) 2009-01-07
HUP0300422A2 (en) 2003-06-28
NO315440B1 (no) 2003-09-01
PT1259769E (pt) 2005-03-31
AU2001230251A1 (en) 2001-09-12
CZ304827B6 (cs) 2014-11-26
ES2230266T3 (es) 2005-05-01
HU228723B1 (en) 2013-05-28
WO2001065188A1 (fr) 2001-09-07
SK12462002A3 (sk) 2002-12-03
EP1259769B1 (fr) 2004-11-24
ATE283463T1 (de) 2004-12-15
NO20024015D0 (no) 2002-08-22
NO20024015L (no) 2002-10-28
CZ20022941A3 (cs) 2002-11-13

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