EP0173034A1 - Système de régulation des circuits frigorifiques pour au moins deux niveaux de froid - Google Patents

Système de régulation des circuits frigorifiques pour au moins deux niveaux de froid Download PDF

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Publication number
EP0173034A1
EP0173034A1 EP85108401A EP85108401A EP0173034A1 EP 0173034 A1 EP0173034 A1 EP 0173034A1 EP 85108401 A EP85108401 A EP 85108401A EP 85108401 A EP85108401 A EP 85108401A EP 0173034 A1 EP0173034 A1 EP 0173034A1
Authority
EP
European Patent Office
Prior art keywords
cooling
circuit
sensors
circuit arrangement
logic
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
EP85108401A
Other languages
German (de)
English (en)
Other versions
EP0173034B1 (fr
Inventor
Matthias Dipl.-Ing. Aschberger
Karlheinz Dipl.-Ing. Färber
Anton Dipl.-Ing. Deininger
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.)
BOSCH-SIEMENS HAUSGERAETE GMBH
Coca Cola Co
Original Assignee
Coca Cola Co
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 Coca Cola Co filed Critical Coca Cola Co
Priority to AT85108401T priority Critical patent/ATE34039T1/de
Publication of EP0173034A1 publication Critical patent/EP0173034A1/fr
Application granted granted Critical
Publication of EP0173034B1 publication Critical patent/EP0173034B1/fr
Expired legal-status Critical Current

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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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/0857—Cooling arrangements
    • B67D1/0858—Cooling arrangements using compression systems
    • B67D1/0861—Cooling arrangements using compression systems the evaporator acting through an intermediate heat transfer means
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/002—Liquid coolers, e.g. beverage cooler
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2511—Evaporator distribution valves

Definitions

  • the present invention relates to a circuit arrangement for controlling cooling circuits for at least two cooling areas, in particular in vending machines with cooling of the CO Z water supply and the space for the beverage concentrates, by means of one of two evaporators which can optionally be switched into the cooling circuit of a condenser via a valve arrangement Dependency of the cooling demand detected by sensors with priority connection of one of the cooling circuits.
  • a valve system optionally connecting the evaporator part to the condensers .
  • Compressor condensers are usually used in this context.
  • the evaporators are preferably connected alternately to the condenser in order to achieve the best possible efficiency and to keep the manufacturing outlay low. If one of the cooling areas is to be cooled particularly - for example the freezer unit in a fridge-freezer combination - a priority circuit is used in a known manner. Only when this preferred cooling area has been sufficiently subjected to the cooling process is the further cooling area supplied when there is a need for cooling.
  • a mixed drink in which a mixed drink can be provided by mixing carbonated water with beverage concentrates, it is necessary, or at least to a great extent, to cool the container in which the carbonated water is kept ready or the water is carbonized. The cooler the water, the greater its absorption capacity for CO 2 gas.
  • the volume fraction is a multiple of the volume fraction of the beverage concentration concentrate, so that the temperature of the carbonator is also essentially determining the temperature of the mixed beverage.
  • the cooling of the carbonated water has a natural limit set by the freezing point of the mixture.
  • part of the carbonated water is stored in ice form.
  • the ice sheet that forms is evaluated as a criterion for the cooling supply.
  • the temperature of the mixed beverage can be higher than the desired beverage temperature. For this reason and in order to expose the stored beverage concentrates to advantageous storage conditions, it may also be necessary to cool the storage space for the beverage concentrates. On the other hand, however, it is also desirable to expand the "refrigeration capacity" as much as possible in the event of a relatively high expected beverage dispensing requirement, namely through the provisional formation of the strongest possible ice sheet.
  • the present invention is based on the object of providing a circuit arrangement for controlling cooling circuits for at least two cooling areas, in particular for the described application area, which is able to meet different cooling energy needs from a common cooling system for the two cooling areas.
  • a circuit arrangement for a cooling circuit with a condenser and with a plurality of evaporators, which can be connected to this condenser by means of a valve arrangement, is characterized according to the invention in that sensors are assigned to at least one of the cooling areas for at least two cooling demand criteria and at least one further cooling area for at least one cooling demand criterion and that the sensors are assigned different priorities in such a way that the priority of the refrigeration requirement criteria alternates between the cooling areas by means of a logic link circuit connected downstream of the sensors.
  • a circuit arrangement for controlling cooling circuits constructed according to these criteria according to the invention is preferably suitable for vending machines with separate storage of carbonated water and beverage concentrates to the extent that the cooling of the water supply to a predetermined basic value takes priority over the cooling of the storage space for the beverage concentrates.
  • the water supply is to be subjected to additional cooling - for example in the event that provision is made for increased output of carbonated water, which is replaced by warmer fresh water, then this cooling requirement is subordinate to the cooling of the beverage concentrate storage space.
  • the circuit arrangement according to the invention when used in vending machines is characterized in that the sensors for the provision of the cooling requirement criteria for the carbonated water are electrodes which are arranged in areas of the ice sheet being formed at different distances from the cooling device.
  • the electrode by means of which the highest-ranking cooling requirement within the vending machine can be ascertained, is arranged in an area in which the ice sheet that forms has a predetermined minimum thickness.
  • the second electrode detects an additionally reinforced formation of the ice sheet. Regardless of the thickness of the ice sheet formed, however, the temperature of the carbonator is approximately the same in the area near and above the freezing point.
  • An electronic evaluable switching element for example an NTC switching element, can expediently be used to record the cooling requirement in the pre-locking space for the beverage concentrates.
  • a circuit arrangement constructed according to the features according to the invention will expediently be designed in such a way that all sensors for providing the cooling requirement criteria are linked via an OR link and can thus be evaluated for activating the cooling circuit.
  • a priority must be assigned to the individual cooling demand criteria by means of a further logic logic circuit, to which the signals from the heat demand sensors are fed, the output signal of this further logic logic circuit controlling the changeover valve for the cooling circuit. If the circuit is designed in such a way that the changeover valve assumes a preferred switching position, the effort for this further logic logic circuit can be simplified. Is this preferred basic position assigned, for example, to the refrigeration area, from which the refrigeration requirement is also assigned criterion for the last-ranking cold area can be tapped, the detection of this criterion in the further logic logic circuit can be dispensed with.
  • the cooling circuit for the vending machine essentially consists of a compressor VD driven by a motor M, a condenser section VS, a switchover valve UPS which can be controlled by a switching magnet USM, and two evaporator sections VDS1 and VDS2 with associated throttle valves DrVl and DrV2 for the storage tank VT for the CO Z water supply or for the VR storage room for the beverage concentrates.
  • Sensors ES1 and ES2 for monitoring ice sheet formation in the CO 2 water supply are arranged in the storage tank VT.
  • the different resistance value of the liquid state or the ice state between the respective sensors and the housing wall of the storage tank VT is evaluated and supplied to the differential amplifiers DV1 and DV2 as a control criterion.
  • a temperature-dependent variable resistor TR is used, which is assigned to the differential amplifier DV3.
  • the sensor ES2 can only be switched on as required via a switch ZS. In normal operation for the vending machine, only the sensor ES1 and the sensor TR supply cold requirement criteria to the evaluation circuit. If, however, increased ice sheet formation is to be formed in the storage tank VT for the carbonized water, the sensor ES2 is also connected to the evaluation circuit via the switch ZS.
  • the outputs of all differential amplifiers DV1, DV2, DV3 are linked via an OR logic circuit OG and control the motor M for the refrigerant compressor VD via an amplifier stage V2 and a power amplifier. This means that regardless of which of the sensors signals a need for cooling, the cooling system comes into operation.
  • the outputs of the differential amplifiers DV1 and DV2 are fed to an AND logic circuit UG, the output of which controls the switching magnet USM for the refrigerant switching valve UPS via an amplifier circuit V1 and a power amplifier.
  • the output signal of the DIN differential amplifier DV1 is fed inverted to the input of the AND logic circuit UG.
  • the refrigerant changeover valve UPS preferably takes the starting position, in which the refrigeration cycle is conducted via the evaporator section VDS1 of the storage tank VT for the carbonated water.
  • the refrigerant changeover valve UPS returns to its starting position.
  • the switch ZS is closed, a refrigeration requirement criterion from the sensor ES2 is only evaluated to control the refrigerant compressor VD via its motor M, so that refrigerant is again applied to the evaporator section VDS1.
  • circuit arrangement specified as an exemplary embodiment will be part of an overall circuit for operating a beverage machine.
  • control logic it is then conceivable and expedient to use a microprocessor circuit instead of discrete switching elements.
  • circuitry measures are implemented by functional modules, in particular in the form of logic logic elements.
  • functional modules in particular in the form of logic logic elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
EP85108401A 1984-08-22 1985-07-06 Système de régulation des circuits frigorifiques pour au moins deux niveaux de froid Expired EP0173034B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85108401T ATE34039T1 (de) 1984-08-22 1985-07-06 Schaltungsanordnung zum steuern von kuehlkreislaeufen fuer zumindest zwei kuehlbereiche.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3430946 1984-08-22
DE19843430946 DE3430946A1 (de) 1984-08-22 1984-08-22 Schaltungsanordnung zum steuern von kuehlkreislaeufen fuer zumindest zwei kuehlbereiche

Publications (2)

Publication Number Publication Date
EP0173034A1 true EP0173034A1 (fr) 1986-03-05
EP0173034B1 EP0173034B1 (fr) 1988-05-04

Family

ID=6243669

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108401A Expired EP0173034B1 (fr) 1984-08-22 1985-07-06 Système de régulation des circuits frigorifiques pour au moins deux niveaux de froid

Country Status (10)

Country Link
US (1) US4655050A (fr)
EP (1) EP0173034B1 (fr)
JP (1) JPS61119964A (fr)
KR (1) KR900002318B1 (fr)
AT (1) ATE34039T1 (fr)
AU (1) AU592313B2 (fr)
CA (1) CA1238393A (fr)
DE (2) DE3430946A1 (fr)
ES (1) ES8605090A1 (fr)
ZA (1) ZA855303B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990000517A1 (fr) * 1988-07-07 1990-01-25 Valpar Industrial Limited Systemes de regulation thermique
EP1162168A1 (fr) * 2000-06-07 2001-12-12 Ugolini S.P.A. Distributeur de boissons avec plusieurs récipients d'ingrédients réfrigérés individuellement et procédé de contrôle

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545602C1 (de) * 1985-12-21 1987-08-13 Danfoss As Steuerschaltung fuer eine Kuehlvorrichtung
US4823556A (en) * 1987-05-15 1989-04-25 Lancer Corporation Electronic ice bank control
DE3940878C2 (de) * 1989-12-11 1993-10-14 Bosch Siemens Hausgeraete Vorrichtung zum Kühlen von Getränkekomponenten in einem Getränkeautomaten
DE59104379D1 (de) * 1990-08-16 1995-03-09 Bosch Siemens Hausgeraete Anordnung, insbesondere für einen Getränkeautomaten mit einem zur Vorratshaltung, Kühlung und Karbonisierung von Wasser dienenden Behälter.
US5219225A (en) * 1992-06-29 1993-06-15 The United States Of America As Represented By The Secretary Of The Army Electronic triple point cell
DE4228752C2 (de) * 1992-09-01 1995-07-20 Henry Helmuth Vorrichtung zum Kühlen von Milch und Verfahren zum Betrieb einer Milchlagervorrichtung
US6067815A (en) * 1996-11-05 2000-05-30 Tes Technology, Inc. Dual evaporator refrigeration unit and thermal energy storage unit therefore
US6370908B1 (en) 1996-11-05 2002-04-16 Tes Technology, Inc. Dual evaporator refrigeration unit and thermal energy storage unit therefore
KR100468125B1 (ko) * 2002-07-04 2005-01-26 삼성전자주식회사 다실형 김치 저장고의 제어방법
ES2389071A1 (es) * 2010-04-16 2012-10-23 Heineken España, S.A. Columna dispensadora de bebidas.
CN106610159A (zh) * 2015-10-22 2017-05-03 杭州三花家电热管理系统有限公司 冷饮机及其冷热循环系统
CN106802039A (zh) 2015-11-25 2017-06-06 杭州三花家电热管理系统有限公司 冷却装置及其控制方法、控制系统
CN113203245A (zh) * 2021-04-30 2021-08-03 无锡酒龙仓定制酒科技发展有限公司 酒柜的控制系统和方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3681937A (en) * 1970-11-20 1972-08-08 Rowe International Inc Refrigeration system for cold drink machines
US3898859A (en) * 1974-02-13 1975-08-12 Duke H C & Son Inc Apparatus and method for the preparation of soft serve products
GB2044424A (en) * 1979-02-28 1980-10-15 Alco Foodservice Equip Refrigeration system for plurality of temperature controlled locations
DE3016941A1 (de) * 1980-05-02 1981-11-05 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Getraenkeautomat mit einem zur vorratshaltung, kuehlung und karbonisierung von trinkwasser dienenden behaelter
GB2083928A (en) * 1980-09-04 1982-03-31 Gen Electric Apparatus and Method of Controlling Temperature of a Two Evaporator Refrigeration System
FR2494412A1 (fr) * 1980-11-20 1982-05-21 Bosch Siemens Hausgeraete Appareil de refrigeration et en particulier refrigerateur-congelateur combine
EP0066553A1 (fr) * 1981-05-15 1982-12-08 INDESIT S.r.l. Système de commande pour améliorer le rendement d'appareils de chauffage ou de refroidissement
US4365486A (en) * 1981-06-29 1982-12-28 Fuji Electric Co., Ltd. Water-cooled heat-accumulating type drink cooling system
DE3243498A1 (de) * 1982-07-14 1984-01-19 Reed Industries, Ind., Stone Mountain, Ga. Mikroprozessor-schaltungsanordnung
FR2545914A1 (fr) * 1983-05-10 1984-11-16 Bosch Siemens Hausgeraete Ensemble combine de refrigerateur et congelateur equipe d'un groupe frigorifique commun

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1523112A (en) * 1924-05-31 1925-01-13 Frank Kanter Refrigerating apparatus
US2133949A (en) * 1935-03-30 1938-10-25 Westinghouse Electric & Mfg Co Refrigeration apparatus
US3323681A (en) * 1965-10-22 1967-06-06 Honeywell Inc Control apparatus for mixing two ingredients in definite ratios
US3496733A (en) * 1968-05-01 1970-02-24 Vendo Co Electronic ice bank control
US4439998A (en) * 1980-09-04 1984-04-03 General Electric Company Apparatus and method of controlling air temperature of a two-evaporator refrigeration system
US4510767A (en) * 1981-07-03 1985-04-16 Mitsubishi Denki Kabushiki Kaisha Cold storage and refrigeration system
US4485633A (en) * 1982-10-18 1984-12-04 The Coca-Cola Company Temperature-based control for energy management system
US4497179A (en) * 1984-02-24 1985-02-05 The Coca-Cola Company Ice bank control system for beverage dispenser

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3681937A (en) * 1970-11-20 1972-08-08 Rowe International Inc Refrigeration system for cold drink machines
US3898859A (en) * 1974-02-13 1975-08-12 Duke H C & Son Inc Apparatus and method for the preparation of soft serve products
GB2044424A (en) * 1979-02-28 1980-10-15 Alco Foodservice Equip Refrigeration system for plurality of temperature controlled locations
DE3016941A1 (de) * 1980-05-02 1981-11-05 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Getraenkeautomat mit einem zur vorratshaltung, kuehlung und karbonisierung von trinkwasser dienenden behaelter
GB2083928A (en) * 1980-09-04 1982-03-31 Gen Electric Apparatus and Method of Controlling Temperature of a Two Evaporator Refrigeration System
FR2494412A1 (fr) * 1980-11-20 1982-05-21 Bosch Siemens Hausgeraete Appareil de refrigeration et en particulier refrigerateur-congelateur combine
EP0066553A1 (fr) * 1981-05-15 1982-12-08 INDESIT S.r.l. Système de commande pour améliorer le rendement d'appareils de chauffage ou de refroidissement
US4365486A (en) * 1981-06-29 1982-12-28 Fuji Electric Co., Ltd. Water-cooled heat-accumulating type drink cooling system
DE3243498A1 (de) * 1982-07-14 1984-01-19 Reed Industries, Ind., Stone Mountain, Ga. Mikroprozessor-schaltungsanordnung
FR2545914A1 (fr) * 1983-05-10 1984-11-16 Bosch Siemens Hausgeraete Ensemble combine de refrigerateur et congelateur equipe d'un groupe frigorifique commun

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990000517A1 (fr) * 1988-07-07 1990-01-25 Valpar Industrial Limited Systemes de regulation thermique
GB2231946A (en) * 1988-07-07 1990-11-28 Valpar Ind Ltd Temperature control systems
GB2231946B (en) * 1988-07-07 1992-08-12 Valpar Ind Ltd Temperature control systems
EP1162168A1 (fr) * 2000-06-07 2001-12-12 Ugolini S.P.A. Distributeur de boissons avec plusieurs récipients d'ingrédients réfrigérés individuellement et procédé de contrôle

Also Published As

Publication number Publication date
CA1238393A (fr) 1988-06-21
JPH0356393B2 (fr) 1991-08-28
KR860001997A (ko) 1986-03-24
AU592313B2 (en) 1990-01-11
DE3562525D1 (en) 1988-06-09
ES8605090A1 (es) 1986-03-01
KR900002318B1 (ko) 1990-04-11
ES546301A0 (es) 1986-03-01
DE3430946A1 (de) 1986-03-06
JPS61119964A (ja) 1986-06-07
DE3430946C2 (fr) 1987-09-24
ZA855303B (en) 1986-03-26
AU4612985A (en) 1986-04-10
US4655050A (en) 1987-04-07
ATE34039T1 (de) 1988-05-15
EP0173034B1 (fr) 1988-05-04

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