EP0091493A1 - Method and apparatus for the extraction of heat from ground-water for the heating of dwellings - Google Patents

Method and apparatus for the extraction of heat from ground-water for the heating of dwellings Download PDF

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Publication number
EP0091493A1
EP0091493A1 EP82102592A EP82102592A EP0091493A1 EP 0091493 A1 EP0091493 A1 EP 0091493A1 EP 82102592 A EP82102592 A EP 82102592A EP 82102592 A EP82102592 A EP 82102592A EP 0091493 A1 EP0091493 A1 EP 0091493A1
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EP
European Patent Office
Prior art keywords
water
ice
heat
ground
extraction
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.)
Withdrawn
Application number
EP82102592A
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German (de)
French (fr)
Inventor
Theo Wessa
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.)
WESSAMAT - EISWUERFELAUTOMATEN INH. THEO WESSA
Original Assignee
Wessamat - Eiswuerfelautomaten Inh Theo Wessa
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.)
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Publication date
Application filed by Wessamat - Eiswuerfelautomaten Inh Theo Wessa filed Critical Wessamat - Eiswuerfelautomaten Inh Theo Wessa
Priority to EP82102592A priority Critical patent/EP0091493A1/en
Publication of EP0091493A1 publication Critical patent/EP0091493A1/en
Withdrawn legal-status Critical Current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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C1/00—Producing ice
    • F25C1/08—Producing ice by immersing freezing chambers, cylindrical bodies or plates into water

Definitions

  • the invention relates to a method and device for extracting the groundwater heat by means of an ice maker and the supply of this heat to heating systems for living rooms.
  • the object is achieved by a process in which groundwater is introduced into an open container and evaporator profiles are immersed in this water. With the subsequent heat extraction in the minus range, small ice bodies form around the immersed profiles. The water is moved so that the heat removal is accelerated and crystallization of the water when the minus range is reached is avoided. After the ice bodies have formed, the body of ice flowing around the water has achieved a temperature of below 0 0 C, the tub pivots downward, through the evaporator hot refrigerant vapor is passed and the ice bodies fall off. When the tub has reached its lower position, the ice bodies slide into a screw conveyor to be transported outside. At the same time, the ice water is pumped outside using a pump. Ice and water are preferably passed onto a bed of gravel, the ice bodies melting and thus melted and residual water being returned to the groundwater, warmed up.
  • the details of the invention with its advantages are shown in the accompanying drawing Fig. 1 + 2.
  • the facility has an outer housing and is installed in the basement of a residential building.
  • the groundwater is pumped from a small blow well (12) with a pump (11) through the feed line (10) into the water tank (13).
  • the pump is switched off via a level switch after the tub is filled.
  • Refrigerant vapor is forced through the high-pressure line (2) by the compressor (1).
  • the container (3) and the radiator (17) are filled with water (4) and connected to each other by the flow line (7) and the return line (6). Due to the onset of heat removal of the water in the container (13), the water is heated by the coil (2). The hot water is circulated by the pump (5).
  • the container (13) is now tipped for emptying, so that the ice bodies fall off and slide with the residual water into the screw conveyor (14), by means of which they are transported outside.
  • the residual water runs through the outer jacket of the screw conveyor into the container (15) and is also pumped outside by the pump (16). After emptying, the container (13) swings up again for the next heat removal period.
  • a drip pan (18) is attached to the evaporator (8), which prevents leaks, brine, refrigerants or oils from getting into the groundwater.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Water Treatments (AREA)

Abstract

For heat extraction from ground-water, the latter is removed from a driven well (12) and conducted into an open container (13). Heat extraction profiles (8) are immersed in this water and the water is moved to speed up extraction. After small pieces of ice have formed around the profiles (8) during the extraction process, the water tank (13) pivots downwards, the pieces of ice fall into the worm conveyor (14) and are conveyed with the residual water into the open, where the pieces of ice melt and are returned to the ground-water as melt water and residual water. Arranged on the evaporator (8) is a collecting bowl (18) which, in the event of a lack of tightness, prevents sols, coolants or oils escaping into the ground-water. <IMAGE>

Description

Die Erfindung bezieht sich auf ein Verfahren und Vorrichtung zum Entzug der Grundwasserwärme mittels eines Eisbereiters und die Zuführung dieser Wärme an Heizsysteme für Wohnräume.The invention relates to a method and device for extracting the groundwater heat by means of an ice maker and the supply of this heat to heating systems for living rooms.

Es ist bekannt, dem Grundwasser Wärme zu entziehen, wobei das Grundwasser aus einem Förderbrunnen entnommen, durch einen Verdampfer zum Wärmeentzug geleitet und einem Schluckbrunnen wieder zugeführt wird. Dabei muss der Wärmeentzug in einem Temperaturbereich über dem Gefrierpunkt erfolgen, um ein Zufrieren der Rohrleitungen des Verdampfers zu vermeiden. Auch muss nach den Auflagen der staatlichen Ämter für Wasserwirtschaft, das dem Schluckbrunnen wieder zugeführte Wasser noch mindestens eine Temperatur von + 4° aufweisen. Durch diesen geringen Wärmeentzug sind große Wassermengen erforderlich und somit auch die entsprechenden Pumpen und Brunnen. Eine rasche Ablagerung von Kalk oder sonstigen Rückständen in den wasserführenden Kondensator-Rohren ist deshalb unvermeidlich, wobei die Reinigung dieser Rohre sehr problematisch ist. Auch besteht die Möglichkeit bei einer Undichtigkeit im Kühlkreislauf, daß Kühlsole, Kältemittel und Öl direkt in das Grundwasser gelangen. Die Wärmeausbeute ist sehr gering im Vergleich der dazu benötigten Wassermenge.It is known to extract heat from the groundwater, wherein the groundwater is removed from a production well, passed through an evaporator to the heat extraction and fed back into a swallowing well. The heat must be removed in a temperature range above freezing to avoid the evaporator piping from freezing. Also, according to the requirements of the state offices for water management, the water returned to the swallow well must still have a temperature of at least + 4 °. Due to this low heat removal, large amounts of water are required, and with it the corresponding pumps and wells. Rapid deposition of lime or other residues in the water-carrying condenser pipes is therefore inevitable, and cleaning these pipes is very problematic. If there is a leak in the cooling circuit, there is also the possibility that cooling brine, refrigerant and oil get directly into the groundwater. The heat yield is very low compared to the amount of water required.

Die gestellte Aufgabe der Erfindung besteht demgegenüber darin,

  • 1) dem Grundwasser die Wärme bis in den Minus-Bereich zu entziehen,
  • 2) auf wasserführende Rohre wegen Ablagerung von Rückständen zu verzichten,
  • 3) das durch den Wärmeentzug produzierte Eis, nach dem natürlichen Schmelzprozess und der Erwärmung, dem Grundwasser wieder zuzuführen,
  • 4) eine Verunreinigung des Grundwassers durch auslaufende Sole, Kältemittel, Öle, bei Undichtigkeit im Kühlsystem, auszuschließen.
In contrast, the object of the invention is to
  • 1) extract heat from the groundwater to the minus range,
  • 2) do not use water-carrying pipes because of deposits of residues,
  • 3) the ice produced by the heat extraction, after the natural melting process and the warming, to be returned to the groundwater,
  • 4) Exclude contamination of the groundwater by leaking brine, refrigerants, oils, if there is a leak in the cooling system.

Gelöst wird die Aufgabe durch ein Verfahren, wobei Grundwasser in einen offenen Behälter eingeleitet wird und in dieses Wasser Verdampferprofile eingetaucht sind. Bei dem nun folgenden Wärmeentzug im Minus-Bereich, bilden sich um die eingetauchten Profile kleine Eiskörper. Das Wasser wird bewegt, damit der Wärmeentzug beschleunigt wird und ein Kristallisieren des Wassers beim Erreichen des Minus-Bereiches, vermieden wird. Nachdem sich die Eiskörper gebildet haben, das die Eiskörper umspülende Wasser dadurch eine Temperatur von unter 00 C erreicht hat, schwenkt die Wanne nach unten, durch den Verdampfer wird heißer Kältemitteldampf geleitet und die Eiskörper fallen ab. Wenn die Wanne ihre untere Position erreicht hat, rutschen die Eiskörper in eine Förderschnecke zum Abtransport ins Freie. Parallel dazu wird das Eiswasser mittels einer Pumpe ins Freie befördert. Vorzugsweise wird Eis und Wasser auf ein Kiesbett geleitet, wobei die Eiskörper schmelzen und somit Schmelz- und Restwasser dem Grundwasser, aufgewärmt, wieder zugeführt wird. Die Einzelheiten der Erfindung mit ihren Vorteilen wird auf der beigefügten Zeichnung Fig. 1 + 2 dargestellt.The object is achieved by a process in which groundwater is introduced into an open container and evaporator profiles are immersed in this water. With the subsequent heat extraction in the minus range, small ice bodies form around the immersed profiles. The water is moved so that the heat removal is accelerated and crystallization of the water when the minus range is reached is avoided. After the ice bodies have formed, the body of ice flowing around the water has achieved a temperature of below 0 0 C, the tub pivots downward, through the evaporator hot refrigerant vapor is passed and the ice bodies fall off. When the tub has reached its lower position, the ice bodies slide into a screw conveyor to be transported outside. At the same time, the ice water is pumped outside using a pump. Ice and water are preferably passed onto a bed of gravel, the ice bodies melting and thus melted and residual water being returned to the groundwater, warmed up. The details of the invention with its advantages are shown in the accompanying drawing Fig. 1 + 2.

Beispiel : Die Einrichtung ist mit einem Außengehäuse versehen und im Keller eines Wohnhauses aufgestellt.Example: The facility has an outer housing and is installed in the basement of a residential building.

Das Grundwasser wird aus einem kleinen Schlagbrunnen (12) mit einer Pumpe (11) durch die Zuleitung (10) in den Wasserbehälter (13) gepumpt. Die Abschaltung der Pumpe erfolgt über einen Niveauschalter, nachdem die Wanne gefüllt ist.The groundwater is pumped from a small blow well (12) with a pump (11) through the feed line (10) into the water tank (13). The pump is switched off via a level switch after the tub is filled.

Von dem Kompressor (1) wird Kältemitteldampf durch die Hochdruckleitung (2) gedrückt. Der Behälter (3) und der Heizkörper (17) sind mit Wasser (4) gefüllt und durch die Vorlaufleitung (7) und die Rücklaufleitung (6) miteinander verbunden. Durch den einsetzenden Wärmeentzug des Wassers im Behälter (13) wird das Wasser durch die Rohrschlange (2) erhitzt. Die Heißwasserumwälzung erfolgt durch die Pumpe (5).Refrigerant vapor is forced through the high-pressure line (2) by the compressor (1). The container (3) and the radiator (17) are filled with water (4) and connected to each other by the flow line (7) and the return line (6). Due to the onset of heat removal of the water in the container (13), the water is heated by the coil (2). The hot water is circulated by the pump (5).

Der Wärmeentzug des Wassers im Behälter (13) wird nun so lange fortgesetzt, bis sich an den Verdampferprofilen (8) Eiskörper gebildet haben und somit die Wasserwärme bis in den Minus-Bereich entzogen ist.The heat removal of the water in the container (13) is now continued until ice bodies have formed on the evaporator profiles (8) and the water heat is thus withdrawn to the minus range.

Der Behälter (13) wird nun zur Entleerung abgekippt, so daß die Eiskörper abfallen und mit dem Restwasser in die Förderschnecke (14) rutschen, mittels welcher sie ins Freie befördert werden. Das Restwasser läuft durch den Außenmantel der Förderschnecke in den Behälter (15) und wird mit der Pumpe (16) ebenfalls ins Freie gepumpt. Nach der Entleerung schwenkt der Behälter (13) wieder hoch für die nächste Wärmeentzugsperiode.The container (13) is now tipped for emptying, so that the ice bodies fall off and slide with the residual water into the screw conveyor (14), by means of which they are transported outside. The residual water runs through the outer jacket of the screw conveyor into the container (15) and is also pumped outside by the pump (16). After emptying, the container (13) swings up again for the next heat removal period.

An dem Verdampfer (8) ist eine Auffangschale (18) angebracht, welche verhindert, daß bei Undichtigkeit, Sole, Kältemittel oder Öle, in das Grundwasser gelangen können.A drip pan (18) is attached to the evaporator (8), which prevents leaks, brine, refrigerants or oils from getting into the groundwater.

Claims (4)

1) Verfahren zum Entzug von Grundwasserwärme für die Beheizung von Wohnräumen, dadurch gekennzeichnet, daß Verdampferprofile in einen Wasserbehälter eingetaucht sind, wobei sich um die Profile während des Wärmeentzuges, Eiskörper bilden, das Wasser um ein Kristalliesieren zu vermeiden, bewegt wird, der Wärmeentzug bis in den Minus-Bereich erfolgt, bei Erreichen der max. Eiskörpergröße diese mittels heißem Kältemitteldampf abgetaut , mit dem Restwasser entleert werden und der Entzugsvorgang von neuem wieder eingeleitet wird.1) Method for extracting groundwater heat for heating living spaces, characterized in that evaporator profiles are immersed in a water container, with the body being moved around the profiles during the heat removal, ice bodies, the water to avoid crystallization, the heat removal until in the minus range when the max. Ice body size these are defrosted by means of hot refrigerant vapor, with which residual water is emptied and the withdrawal process is started again. 2) Verfahren nach Anspruch 1) dadurch gekennzeichnet, daß unterhalb des Verdampfers eine Auffangschale angebracht ist, um bei Undichtigkeit das Eindringen von Sole, Kältemittel und Ölen in das Grundwasser zu vermeiden.2) Method according to claim 1) characterized in that a collecting tray is attached below the evaporator to prevent the ingress of brine, refrigerant and oils into the groundwater in the event of a leak. 3) Verfahren nach Anspruch 1) + 2) dadurch gekennzeichnet, daß bei der Entleerung die Eiskörper in eine Förderschnecke fallen und von dieser ins Freie transportiert werden und unter dieser Förderschnecke ein Sammelbehälter angebracht ist, von welchem aus das Restwasser gleichzeitig mit den Eiskörpern ins Freie befördert wird.3) Method according to claim 1) + 2) characterized in that when emptying, the ice bodies fall into a screw conveyor and are transported outside by this and a collecting container is attached under this screw conveyor, from which the residual water is released into the open at the same time as the ice bodies is promoted. Skizze: Fig. 1 - Einrichtung beim Entzug Fig. 2 - Einrichtung bei der EntleerungSketch: Fig. 1 - Device for withdrawal Fig. 2 - Device for emptying
EP82102592A 1982-04-08 1982-04-08 Method and apparatus for the extraction of heat from ground-water for the heating of dwellings Withdrawn EP0091493A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP82102592A EP0091493A1 (en) 1982-04-08 1982-04-08 Method and apparatus for the extraction of heat from ground-water for the heating of dwellings

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Application Number Priority Date Filing Date Title
EP82102592A EP0091493A1 (en) 1982-04-08 1982-04-08 Method and apparatus for the extraction of heat from ground-water for the heating of dwellings

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EP0091493A1 true EP0091493A1 (en) 1983-10-19

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EP82102592A Withdrawn EP0091493A1 (en) 1982-04-08 1982-04-08 Method and apparatus for the extraction of heat from ground-water for the heating of dwellings

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007099453A2 (en) * 2006-03-01 2007-09-07 Electrolux Home Products Corporation N.V. Ice-making machine

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH231449A (en) * 1943-04-01 1944-03-31 Max Dipl Ing Egli Method for operating a heat pump system.
GB652215A (en) * 1947-10-07 1951-04-18 James Harold Evans Thermo-pump heating systems
US4003213A (en) * 1975-11-28 1977-01-18 Robert Bruce Cox Triple-point heat pump
DE2552492A1 (en) * 1975-11-22 1977-06-02 Castel Mac Spa Batch type ice cube making machine - has freezer elements which dip into pivotable water trough
US4192151A (en) * 1977-09-07 1980-03-11 Vivian Manufacturing Company Ice making apparatus
US4199956A (en) * 1978-10-04 1980-04-29 Lunde Howard L Ice cube making machine
FR2438806A1 (en) * 1978-10-12 1980-05-09 Scsee Heat pump with de-icing system for evaporator - has valved by=pass line using hot recycled gas to melt ice
DE2855926A1 (en) * 1978-12-23 1980-07-10 Thore Abrahamsson Heat pump with accumulator in circulation system of evaporator - transfers ice slush formed by evaporator to accumulator
DE2946708A1 (en) * 1979-11-20 1981-05-27 Theo 6751 Mackenbach Wessa Refrigerator for producing small ice cubes - has solid freezing fingers immersed in water and washed by refrigerant at one end
EP0042795A1 (en) * 1980-06-20 1981-12-30 Electricite De France Hot water installation comprising a thermodynamic circuit

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH231449A (en) * 1943-04-01 1944-03-31 Max Dipl Ing Egli Method for operating a heat pump system.
GB652215A (en) * 1947-10-07 1951-04-18 James Harold Evans Thermo-pump heating systems
DE2552492A1 (en) * 1975-11-22 1977-06-02 Castel Mac Spa Batch type ice cube making machine - has freezer elements which dip into pivotable water trough
US4003213A (en) * 1975-11-28 1977-01-18 Robert Bruce Cox Triple-point heat pump
US4192151A (en) * 1977-09-07 1980-03-11 Vivian Manufacturing Company Ice making apparatus
US4199956A (en) * 1978-10-04 1980-04-29 Lunde Howard L Ice cube making machine
FR2438806A1 (en) * 1978-10-12 1980-05-09 Scsee Heat pump with de-icing system for evaporator - has valved by=pass line using hot recycled gas to melt ice
DE2855926A1 (en) * 1978-12-23 1980-07-10 Thore Abrahamsson Heat pump with accumulator in circulation system of evaporator - transfers ice slush formed by evaporator to accumulator
DE2946708A1 (en) * 1979-11-20 1981-05-27 Theo 6751 Mackenbach Wessa Refrigerator for producing small ice cubes - has solid freezing fingers immersed in water and washed by refrigerant at one end
EP0042795A1 (en) * 1980-06-20 1981-12-30 Electricite De France Hot water installation comprising a thermodynamic circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007099453A2 (en) * 2006-03-01 2007-09-07 Electrolux Home Products Corporation N.V. Ice-making machine
WO2007099453A3 (en) * 2006-03-01 2008-05-02 Electrolux Home Prod Corp Ice-making machine

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