DE3214216A1 - Heat recovery device for dishwashers - Google Patents

Heat recovery device for dishwashers

Info

Publication number
DE3214216A1
DE3214216A1 DE19823214216 DE3214216A DE3214216A1 DE 3214216 A1 DE3214216 A1 DE 3214216A1 DE 19823214216 DE19823214216 DE 19823214216 DE 3214216 A DE3214216 A DE 3214216A DE 3214216 A1 DE3214216 A1 DE 3214216A1
Authority
DE
Germany
Prior art keywords
recovery device
heat
heat recovery
valve
automatic shut
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
DE19823214216
Other languages
German (de)
Inventor
Berthold Dipl.-Ing.(Fh) 7500 Karlsruhe Schmidt
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.)
Stierlen Maquet AG
Original Assignee
Stierlen Maquet AG
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 DE19803048268 external-priority patent/DE3048268A1/en
Application filed by Stierlen Maquet AG filed Critical Stierlen Maquet AG
Priority to DE19823214216 priority Critical patent/DE3214216A1/en
Publication of DE3214216A1 publication Critical patent/DE3214216A1/en
Granted legal-status Critical Current

Links

Classifications

    • 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
    • F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

A heat pump extracts the lost heat from the water vapour emerging from a dishwasher and transmits it, via three condensers connected in series, to three different heat consumers.

Description

W0kRMEROCKGEWINNUNGSEINRICHTUNG FOR WORK ROCK EXTRACTION DEVICE FOR

GESCH 1 RRSPOLMASCHI NEN Die Erfindung betrifft eine Einrichtung, mit welcher die Verlustwärme von Geschirrspülmaschinen, sowie die Verlustwärme unabhängig von Geschirrspülmaschinen betriebener Energieverbraucher zurückgewonnen, und für eine Geschirrspülmaschine oder für unabhängig von einer Geschirrspülmaschine betriebene Warmwasserspeicher nutzbar gemacht werden kann. Gesch 1 RRSPOLMASCHI NEN The invention relates to a device with which the heat loss from dishwashers, as well as the heat loss independently energy consumers powered by dishwashers recovered, and for a dishwasher or for independently operated by a dishwasher Hot water storage can be made usable.

Es hat sich gezeigt, daß die WärmerUckgewinnungseinrichtung für Geschirrspülmaschinen gemäß Patentanmeldung P 30 48 268.9 weiter verbessert werden kann. Die vorliegende verbesserte Erfindung ist in Figur 1 dargestellt, und wird nachfolgend beschrieben: Die zur Wärmerückgewinnung genutzte Wärmepumpe besteht im wesentlichen aus dem Kältemittelverdichter 12, den Kondensatoren 1, 2 und 3, den Expansionselementen 13, 37, 38, automatischen Absperrelementen 34, 35, 36 und dem Verdampfer 4.It has been shown that the heat recovery device for dishwashers according to patent application P 30 48 268.9 can be further improved. The present improved invention is shown in Figure 1, and is described below: the The heat pump used for heat recovery essentially consists of the refrigerant compressor 12, the capacitors 1, 2 and 3, the expansion elements 13, 37, 38, automatic Shut-off elements 34, 35, 36 and the evaporator 4.

Im Verdampfer 4 wird dem aus der Geschirrspülmaschine austretendem Wasserdampf, und außerdem der Umgebungsluft Wärme entzogen. Die zurückgewonnene Warme wird über die Kondensatoren 1, 2 und 3 wieder an Verbraucher abgegeben. Der Kondensator 3 dient im wesentlichen als Sammler und Unterkühler und wird vorzugsweise vom Nachspülwasser für die Geschirrspülmaschine genutzt. Das Nachspülzçasser strömt von der Frischwasserleitung über die Leitung 91 zum Kondensator 3, und vom Kondensator 3 über die Leitung 92 zum Nachspülboiler 10, und von dort über Düsen 11 in die Geschirrspülmaschine.In the evaporator 4 is the emerging from the dishwasher Water vapor, and also heat extracted from the ambient air. The recovered Heat is returned to the consumer via the capacitors 1, 2 and 3. Of the Condenser 3 serves essentially as a collector and sub-cooler and is preferred used by the rinse water for the dishwasher. The rinsing water flows from the fresh water line via line 91 to condenser 3, and from the condenser 3 via line 92 to final rinse boiler 10, and from there via nozzles 11 into the dishwasher.

Bei diesem Betriebszustand sind die automatischen Absperrventile 42, 43, 41 geöffnet, und daß automatische Absperrventil 44 geschlossen. Wenn der Nachspülboiler 10 keine Wärmeenergie benötigt, werden die automatischen Absperrventile 41 und 43 geschlossen, sowie das Ventil 44 geöffnet.In this operating state, the automatic shut-off valves 42, 43, 41 open and that automatic shut-off valve 44 closed. When the rinse boiler 10 does not require any thermal energy, the automatic shut-off valves 41 and 43 closed and the valve 44 opened.

Das Ventil 42 kann geöffnet oder geschlossen sein.The valve 42 can be open or closed.

Bei diesem Schaltzustand strömt Frischwasser über die Leitung 46 zum Kondensator 3, und vom Kondensator 3 über die Leitung 45 zu einem Warmwasserspeicher 6.In this switching state, fresh water flows via line 46 to the Condenser 3, and from the condenser 3 via line 45 to a hot water tank 6th

Im Kondensator 2 wird im wesentlichen das Tankwasser der Geschirrspülmaschine erwärmt. Das Tankwsser strömt über eine Leitung 82 zum Kondensator 2 und durch eine Leitung 81 vom Kondensator 2 wieder zurück in den Geschirrspülmaschinentank 22.The tank water of the dishwasher is essentially in the condenser 2 warmed up. The tank water flows via a line 82 to the condenser 2 and through a Line 81 from the condenser 2 back into the dishwasher tank 22.

Um alle zurückgewonnene Wärme nutzen zu können, auch wenn vom Nachspülboiler 10 der Geschirrspülmaschine oder vom Tank 22 der Geschirrspülmaschine keine Wärme benötigt und angefordert wird, ist zusätzlich ein Kondensator 1 vorgesehen, in welchem Wärme an den unabhängig von der Geschirrspülmaschine betriebenen Warmwasserspeicher 6 abgegeben wird.In order to be able to use all the recovered heat, even if from the rinse boiler 10 of the dishwasher or from the tank 22 of the dishwasher is required and requested, a capacitor 1 is also provided in which Heat to the hot water tank, which is operated independently of the dishwasher 6 is delivered.

Dies wird z. B. dadurch bewirkt, daß eine Umwälzpumpe 14 einen Wärmeträger z. B. Wasser über eine Leitung 71 vom Warmwasserspeicher 6 zum Kondensator 1, und durch eine Leitung 72 vom Kondensator 1 zum Warmwasserspeicher 6 fördert.This is z. B. causes a circulation pump 14, a heat transfer medium z. B. water via a line 71 from the hot water tank 6 to the condenser 1, and promotes through a line 72 from the condenser 1 to the hot water tank 6.

Durch die beschriebene Anordnung ist sichergestellt, daß zu jeder Zeit Abwärme, die von der WärmerUckgewinnungseinrichtung zur Verfügung gestellt werden kann, nutzbar ist.The arrangement described ensures that each Time waste heat provided by the heat recovery device can be used.

Wenn die vom Verdampfer 4 aufgenommene Abwärme voll genutzt werden soll, entweder durch die Geschirrspülmaschine oder den Warmwasserbereiter 6, oder beide gemeinsam, dann sind die automatischen Absperrventile 35, 36 geschlossen, und das automatische Absperrventil 34 geöffnet. Wenn nur ein Teil der vom Verdampfer 4 aufgenommenen Abwärme genutzt werden soll durch die Geschirrspülmaschine oder/und dem Warmwasserspeicher 6, dann sind die automatischen Absperrventile 34 und 36 geschlossen, und das automatische Absperrventil 35 geöffnet.When the waste heat absorbed by the evaporator 4 is fully used should, either by the dishwasher or the water heater 6, or both together, then the automatic shut-off valves 35, 36 are closed, and the automatic shut-off valve 34 opened. If only part of the from the vaporizer 4 absorbed waste heat is to be used by the dishwasher and / or the hot water tank 6, then the automatic shut-off valves 34 and 36 are closed, and the automatic shutoff valve 35 is opened.

Wenn bei abgeschalteter Geschirrspülmaschine nur die Abwärme unabhängig von der Geschirrspülmaschine betriebener Verbraucher zurückgewonnen, und dem Warmwasserspeicher 6 zugeführt wird, dann sind die automatischen Absperrventile 34, 35 geschlossen und das automatische Absperrventil 36 geöffnet.If only the waste heat is independent when the dishwasher is switched off Recovered consumer operated by the dishwasher, and the hot water storage tank 6 is supplied, then the automatic shut-off valves 34, 35 are closed and the automatic shut-off valve 36 is opened.

Das dann wirksame Expansionselement 38 ist vorzugsweise für konstant zu haltende Leistung einstellbar.The then effective expansion element 38 is preferably for constant adjustable power to be maintained.

Ein Thermostat 39 schaltet die Betriebszustände ein, in denen dem Warmwasserspeicher 6 Energie zugeführt wird. Eir Thermostat 40 schaltet abhängig von der Temperatur vor dem Verdampfer 4 der mit 21 bezeichneten Umgebungsluft die automatischen Absperrventile 36, 34 und 35. Die Steuerung dieser drei automatischen Absperrventile wird außerdem von dem Betriebszustand der Geschirrspülmaschine überlagert.A thermostat 39 switches on the operating states in which the Hot water tank 6 energy is supplied. The thermostat 40 switches depending of the temperature in front of the evaporator 4 of the ambient air designated by 21 automatic shut-off valves 36, 34 and 35. The control of these three automatic The operating state of the dishwasher is also superimposed on shut-off valves.

Wenn die Temperatur des Luftgemisches 21 am Meßpunkt des Thermostates 40 über dem einstellbaren Schaltpunkt des Thermostaten 40 liegt, ist das automatische Absperrventil 36 geschlossen, Ventil 34 und/oder Ventil 35 geöffnet. Wenn die Temperatur des Luftgemisches 21 im Meßbereich des Thermostates 40 unterhalb eines einstellbaren Schaltpunktes des Thermostates 40 liegt, dann sind die automatischen Absperrventile 34 und 35 geschlossen, sowie das automatische Absperrventil 36 geöffnet.When the temperature of the air mixture 21 at the measuring point of the thermostat 40 is above the adjustable switching point of the thermostat 40 is automatic Shut-off valve 36 closed, valve 34 and / or valve 35 open. When the temperature of the air mixture 21 in the measuring range of the thermostat 40 below an adjustable The switching point of the thermostat 40 is then the automatic shut-off valves 34 and 35 closed and the automatic shut-off valve 36 opened.

Ein in der Leitung 91 eingebautes Rückschlagventil 47 verhindert das Zurückstrrjmen von Frischwasser aus der Leitung 46 in die Leitung 91.A check valve 47 built into line 91 prevents this Fresh water flows back from the line 46 into the line 91.

Claims (6)

PATENTANSPROCHE @ Wärmerückgewinnungseinrichtung für Geschirrspülmaschinen, d a d u r c h g e k e n n -z e i c h n e t , daß eine Wärmepumpe dem aus der Geschirrspülmaschine austretenden Wasserdampf und der Umgebungsluft Wärme entzieht, und die zurückgewonnene Wärme über drei hintereinandergeschaltete Kondensatoren an drei Wärmeverbraucher abgibt. PATENT APPROACH @ Heat recovery device for dishwashers, d a d u r c h g e k e n n -z e i c h n e t that a heat pump is the one from the dishwasher escaping water vapor and the ambient air removes heat, and the recovered Heat via three capacitors connected in series to three heat consumers gives away. 2. Wärmerückgwinnungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Kältemittel von der Kondensation zum Verdampfer (4) über drei unabhängig voneinander schaltbare, und beliebig kombinierbare Expansionsstrecken (31), (32), (33) strömen kann. 2. Heat recovery device according to claim 1, characterized in that that the refrigerant of the condensation to the evaporator (4) over three independent expansion sections (31), (32) that can be switched from one another and combined as required, (33) can flow. 3. Wärmerückgewinnungseinrichtung nach den Arsprüclen 1 und 2, d a d u r c h g e -k e n n z e i c h n e t , daß die Expansionsstrecke (31) ein Expansionselement (13) und ein automatisches Absperrelement (34), die Expansionsstrecke (32) ein Expansionselement (37) und ein Absperrelement (35), sowie die Expansionsstrecke (33) ein Expansionselement (38) und Absperrelement (36) enthält.3. Heat recovery device according to Arprüclen 1 and 2, d a d u r c h g e -k e n n n z e i c h n e t that the expansion section (31) is an expansion element (13) and an automatic shut-off element (34), the expansion section (32) an expansion element (37) and a shut-off element (35), and the expansion section (33) is an expansion element (38) and shut-off element (36). 4. Wärmerückgewinnungseinrichtung nach den Ansprüchen 1 bis 3, d a d u r c h g e -k e n n z e i c h n e t , daß vor dem Verdampfer (4) ein Thermostat (40) eingebaut ist.4. Heat recovery device according to claims 1 to 3, d a d u r c h g e -k e n n n z e i c h n e t that there is a thermostat in front of the evaporator (4) (40) is built in. 5. Wärmerückge\innunoseinrichtung nach den vorgehenden Ansprüchen, d a d u r c h g e -k e n n z e i c h n e t , daß im Warmwasserspeicher (6) ein Thermostat (39) eingebaut ist.5. Heat recovery device according to the preceding claims, d a d u r c h g e -k e n n n z e i c h n e t that there is a thermostat in the hot water tank (6) (39) is built in. 6. Wärmerückgewinnungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß in die Wasserzuleitung zum Warmwasserspeicher (6) ein automatisches Absperrventil (41), in die Leitung (91) ein automatisches Absperrventil (43), und in die Verbindungsleitung (45) ein automatisches Absperrventil (44), sowie in die Leitung (91) ein Rückflußverhinderer (47) eingebaut ist.6. Heat recovery device according to claim 1, characterized in that that in the water supply line to the hot water tank (6) an automatic shut-off valve (41), in line (91) an automatic shut-off valve (43), and in the connecting line (45) an automatic shut-off valve (44) and a backflow preventer in line (91) (47) is installed.
DE19823214216 1980-12-20 1982-04-17 Heat recovery device for dishwashers Granted DE3214216A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823214216 DE3214216A1 (en) 1980-12-20 1982-04-17 Heat recovery device for dishwashers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803048268 DE3048268A1 (en) 1980-12-20 1980-12-20 Heat recovery system for dishwashers - has heat pump drawing off and supplying heat independently of dishwasher operation
DE19823214216 DE3214216A1 (en) 1980-12-20 1982-04-17 Heat recovery device for dishwashers

Publications (1)

Publication Number Publication Date
DE3214216A1 true DE3214216A1 (en) 1983-10-27

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ID=25789898

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823214216 Granted DE3214216A1 (en) 1980-12-20 1982-04-17 Heat recovery device for dishwashers

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DE (1) DE3214216A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0473286A2 (en) * 1990-08-30 1992-03-04 Union Kogyo Kabushiki Kaisha An apparatus and method for heating and cooling with a refrigerant
EP0862889A2 (en) * 1997-02-24 1998-09-09 Premark FEG L.L.C. Heat pump for a dishwashing machine
ITBO20080716A1 (en) * 2008-11-28 2010-05-29 Rivacold S R L DEVICE FOR STEAM CONDENSATION AND ENERGY RECOVERY
EP2206824A2 (en) * 2010-02-16 2010-07-14 V-Zug AG Household device with barrel, heat pump and tank
DE102012105906A1 (en) * 2012-07-03 2014-01-09 Miele & Cie. Kg Dishwasher and method for operating a dishwasher
DE102012105902A1 (en) * 2012-07-03 2014-05-08 Miele & Cie. Kg Dishwasher and method for operating a dishwasher
WO2015090409A1 (en) * 2013-12-19 2015-06-25 Electrolux Appliances Aktiebolag Dishwasher comprising heat pump system
EP3257422A1 (en) * 2016-06-17 2017-12-20 Electrolux Professional S.p.A. Dishwashing machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2457182A1 (en) * 1974-12-03 1976-06-10 Stierlen Maquet Ag HEAT RECOVERY DEVICE FOR DISHWASHING MACHINES
DE3019922A1 (en) * 1980-05-24 1981-12-03 Stierlen Maquet Ag Commercial dish washer system - incorporates heat-pump for washing, rinsing and drying operations

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2457182A1 (en) * 1974-12-03 1976-06-10 Stierlen Maquet Ag HEAT RECOVERY DEVICE FOR DISHWASHING MACHINES
DE3019922A1 (en) * 1980-05-24 1981-12-03 Stierlen Maquet Ag Commercial dish washer system - incorporates heat-pump for washing, rinsing and drying operations

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DE-B.: Recknagel Taschenbuch für Heizung u. Klimatechnik 77/78, Oldenbourg Verlag München *
DE-B.: v. Miller Rudolf, Lexikon d. Energietechnik DVA Stuttgart 4. Aufl., 1965 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0473286A2 (en) * 1990-08-30 1992-03-04 Union Kogyo Kabushiki Kaisha An apparatus and method for heating and cooling with a refrigerant
EP0473286A3 (en) * 1990-08-30 1992-09-02 Union Kogyo Kabushiki Kaisha An apparatus and method for heating and cooling with a refrigerant
EP0862889A2 (en) * 1997-02-24 1998-09-09 Premark FEG L.L.C. Heat pump for a dishwashing machine
EP0862889A3 (en) * 1997-02-24 1999-04-07 Premark FEG L.L.C. Heat pump for a dishwashing machine
ITBO20080716A1 (en) * 2008-11-28 2010-05-29 Rivacold S R L DEVICE FOR STEAM CONDENSATION AND ENERGY RECOVERY
EP2192370A1 (en) * 2008-11-28 2010-06-02 Rivacold S.R.L. Device for vapour condensation and for energy recovery
EP2206824A2 (en) * 2010-02-16 2010-07-14 V-Zug AG Household device with barrel, heat pump and tank
EP2206824A3 (en) * 2010-02-16 2010-12-22 V-Zug AG Household device with barrel, heat pump and tank
DE102012105906A1 (en) * 2012-07-03 2014-01-09 Miele & Cie. Kg Dishwasher and method for operating a dishwasher
DE102012105902A1 (en) * 2012-07-03 2014-05-08 Miele & Cie. Kg Dishwasher and method for operating a dishwasher
WO2015090409A1 (en) * 2013-12-19 2015-06-25 Electrolux Appliances Aktiebolag Dishwasher comprising heat pump system
AU2013407868B2 (en) * 2013-12-19 2019-04-11 Electrolux Appliances Aktiebolag Dishwasher comprising heat pump system
EP3257422A1 (en) * 2016-06-17 2017-12-20 Electrolux Professional S.p.A. Dishwashing machine

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