EP3034968B1 - Assembly for the cooling of objects - Google Patents

Assembly for the cooling of objects Download PDF

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Publication number
EP3034968B1
EP3034968B1 EP15200874.4A EP15200874A EP3034968B1 EP 3034968 B1 EP3034968 B1 EP 3034968B1 EP 15200874 A EP15200874 A EP 15200874A EP 3034968 B1 EP3034968 B1 EP 3034968B1
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EP
European Patent Office
Prior art keywords
fluid
tank
temperature
pipe
controlling
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EP15200874.4A
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German (de)
French (fr)
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EP3034968A1 (en
Inventor
Nico KOWARSCHIK
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KUKA Deutschland GmbH
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KUKA Deutschland GmbH
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D30/00—Cooling castings, not restricted to casting processes covered by a single main group
    • 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
    • F25D1/00—Devices using naturally cold air or cold water
    • 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
    • F25D1/00—Devices using naturally cold air or cold water
    • F25D1/02—Devices using naturally cold air or cold water using naturally cold water, e.g. household tap water
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
    • 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
    • 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
    • F25D31/003—Liquid coolers, e.g. beverage cooler with immersed cooling element
    • 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
    • F25D31/006—Other cooling or freezing apparatus specially adapted for cooling receptacles, e.g. tanks
    • 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
    • F28D1/00—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0206—Heat exchangers immersed in a large body of liquid
    • F28D1/0213—Heat exchangers immersed in a large body of liquid for heating or cooling a liquid in a tank
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/802—Barrels
    • 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
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/804—Boxes

Definitions

  • the invention relates to an arrangement for cooling objects, in particular cast parts, comprising a basin containing liquid with inlet and outlet, level sensor, temperature sensor and first means for tempering the liquid in the basin and second means for supplying the liquid into the basin ,
  • So-called immersion cooling tanks are used to cool cast parts, which can be rectangular containers made of galvanized steel or stainless steel sheet.
  • temperature and fill level sensors are available in the pool.
  • Electromagnetically operated valves are used to control the temperature and the fill level.
  • the water to be cooled is fed to a heat exchanger via a circulation pump in order to ensure the boundary conditions specified by a user.
  • an electrical temperature sensor is usually used, by means of which an electromagnetic water valve is controlled.
  • the minimum fill level is monitored via fill level sensors and magnetic water valves operated by them.
  • Heat exchangers in the form of pipe systems can be used for cooling.
  • Components or means of the arrangement are thus to be supplied with electrical energy in order to be able to cool castings in the basin to the required extent.
  • complex installation measures are sometimes required.
  • Special precautions must also be taken if a pool is to be installed in an explosion-proof area.
  • the GB 608,057 A and the US 2,431,721 A arrangements for cooling drinking water in particular can be found.
  • the drinking water is located in a container in which there is a spiral body, to which liquid coolant is supplied and then expanded in this.
  • the present invention is based on the object of developing an arrangement of the type mentioned at the outset in such a way that it can be operated without problems taking into account the user requirements, the installation effort being reduced in comparison to known constructions.
  • the present invention is disclosed in independent claims 1 and 9. Further embodiments are disclosed in the dependent claims.
  • the invention provides that the arrangement is operated without current by using the first means for tempering the liquid and the second means for supplying liquid into the basin and for regulating the liquid level in the basin, which operate purely mechanically ,
  • the means for cooling the liquid comprises a heat exchanger, in particular heat exchange plate, arranged in the liquid, which is connected to a water-carrying line via a mechanical valve of a mechanical temperature regulator, the sensor of the temperature regulator being located in the liquid.
  • the heat exchanger has a water connection running in the bottom region of the basin and, in the head region of the heat exchanger, an outlet which can be closed by a check valve.
  • the invention is characterized in that the means for supplying liquid to the basin comprise a liquid-carrying line which is connected to the inlet to the basin, a mechanical valve being arranged in the line, which is connected via a connecting element to a swimmers present in the liquid of the pool is connected.
  • the invention also relates to a method for cooling objects in a liquid-filled basin with inlet and outlet, level sensor, temperature sensor and a first device for tempering the liquid and a second device for supplying liquid into the basin, the arrangement being without current is operated using the first means for tempering the liquid and the second means for supplying liquid into the basin and for regulating the liquid level in the basin, which operate purely mechanically.
  • the first device comprises a heat exchanger, such as a heat exchanger plate, arranged in the liquid, which is connected to a mechanical valve of a mechanical temperature controller, the sensor of which is located in the liquid, the valve being connected to a line carrying liquid.
  • the second device comprises a line carrying the liquid which is connected to the inlet, wherein a mechanical valve of the inlet is arranged in the line and is connected via a connecting element, such as a lever, to a float which is present in the pool and is in the liquid is.
  • the sole figure shows a basic illustration of an arrangement 10 for cooling castings in particular.
  • the arrangement 10 comprises, as an essential component, e.g. existing pool 12 made of galvanized steel or stainless steel sheet, which is filled with a liquid 14 such as water. Furthermore, in the basin 12 there is a heat exchanger in the form of a thermal plate 16, which is preferably arranged along a long side of a basin wall, in order to cool the liquid 14 to the required extent.
  • a float valve 17 is provided, which is connected via a float 18 floating on or in the liquid 14, in particular via a lever element, in order to supply water as a function of the fill level in the basin 12 Let it run or shut it off.
  • the water pressure in the water pipe is used to convey the water without the need for any further conveying means.
  • a mechanical temperature regulator preferably in the form of a thermostatic valve 20, is used, which is connected to a temperature sensor 22 in the liquid 14 for switching the thermostatic valve 20.
  • a liquid and water connection 24 leads via a line 26 both to the float valve 17 (branch 28) and to the thermostatic valve 20 (branch 30).
  • the branch 28 of the line 26 connected to the float valve 17 opens into an inlet 29 in the bottom region of the basin 12.
  • a line 32 extends from the top region of the basin 12 and functions as an overflow line and leads to a water drain 34.
  • the connection that is to say the sequence, is identified by reference number 31.
  • the line 30 leading to the thermostatic valve 20 opens into the bottom area of the heat exchanger 16 or the thermal plate.
  • the outlet of the heat exchanger 16 starts from the head region and leads to the water outlet 34 via a line 36.
  • the arrangement 10 can be referred to as an autonomous system, since no electrical energy is required in order to ensure the required liquid level within the basin 12 and, at the same time, to set the temperature in such a way that the cast parts to be introduced are cooled.
  • the float valve 17 is opened when a liquid level is detected by the float 18, which is below a level to be maintained.
  • the water which is present at the float valve 17 and is under pressure is introduced into the bottom region of the basin 12 until the float 18 closes the float valve 17.
  • the function of a float or filling valve is fulfilled, which is a valve controlled by a float, ie if a certain liquid level is undershot, the valve opens and when the desired liquid level is reached, the valve closes again.
  • the water is also under pressure at the thermostatic valve 20 and thus flows into the heat exchanger 16 when the thermostatic valve 20 is switched on, that is to say the temperature sensor 22 detects a temperature in the liquid 14 which is above a desired temperature. Since the liquid 14 is introduced into the heat exchanger 16 in the bottom area thereof and the outflow is in the head area, no further separate valves are required. However, a mechanically operating check valve can be provided in the outlet area or in line 36.
  • the thermostatic valve 20 can also work in a classic manner, i. that is, depending on the temperature of the liquid 14, a lower or higher flow can take place so that the desired liquid temperature prevails in the basin 12.

Description

Die Erfindung bezieht sich auf eine Anordnung zum Kühlen von Gegenständen, insbesondere von Gussteilen, umfassend ein Flüssigkeit enthaltendes Becken mit Zu- und Ablauf, Füllstandssensor, Temperatursensor sowie erste Mittel zum Temperieren der Flüssigkeit in dem Becken und zweite Mittel zum Zuführen der Flüssigkeit in das Becken. Um Gussteile zu kühlen, werden sogenannte Tauchkühlbecken verwendet, bei denen es sich um rechteckige Behälter aus verzinktem Stahl- oder Edelstahlblech handeln kann. Um den Wärme- bzw. Füllstandszustand zu überwachen, sind im Becken Temperatur- und Füllstandssensoren vorhanden. Zur Steuerung der Temperatur bzw. des Füllstandes werden elektromagnetisch betätigte Ventile verwendet. Über eine Umwälzpumpe wird das zu kühlende Wasser einem Wärmetauscher zugeführt, um die von einem Nutzer vorgegebenen Randbedingungen sicherzustellen.The invention relates to an arrangement for cooling objects, in particular cast parts, comprising a basin containing liquid with inlet and outlet, level sensor, temperature sensor and first means for tempering the liquid in the basin and second means for supplying the liquid into the basin , So-called immersion cooling tanks are used to cool cast parts, which can be rectangular containers made of galvanized steel or stainless steel sheet. In order to monitor the heat or fill level, temperature and fill level sensors are available in the pool. Electromagnetically operated valves are used to control the temperature and the fill level. The water to be cooled is fed to a heat exchanger via a circulation pump in order to ensure the boundary conditions specified by a user.

Um eine Kühlung zu ermöglichen, gelangt üblicherweise ein elektrischer Temperatursensor zum Einsatz, mittels dessen ein elektromagnetisches Wasserventil gesteuert wird. Über Füllstandssensoren und von diesen betätigte Magnetwasserventile wird der minimale Füllstand überwacht. Zur Kühlung können Wärmetauscher in Form von Rohrsystemen zum Einsatz gelangen.To enable cooling, an electrical temperature sensor is usually used, by means of which an electromagnetic water valve is controlled. The minimum fill level is monitored via fill level sensors and magnetic water valves operated by them. Heat exchangers in the form of pipe systems can be used for cooling.

Somit sind Komponenten bzw. Mittel der Anordnung mit elektrischer Energie zu versorgen, um im erforderlichen Umfang Gussteile in dem Becken kühlen zu können. Hierdurch bedingt sind zum Teil aufwendige Installationsmaßnahmen erforderlich. Auch sind besondere Vorkehrungen zu treffen, wenn ein Becken in einem ex-geschützten Bereich installiert werden soll.Components or means of the arrangement are thus to be supplied with electrical energy in order to be able to cool castings in the basin to the required extent. As a result, complex installation measures are sometimes required. Special precautions must also be taken if a pool is to be installed in an explosion-proof area.

Der GB 608,057 A und der US 2,431,721 A sind Anordnungen zum Kühlen von insbesondere Trinkwasser zu entnehmen. Das Trinkwasser befindet sich in einem Behälter, in dem sich ein spiralförmiger Körper befindet, dem flüssiges Kühlmittel zugeführt und in diesem sodann entspannt wird.The GB 608,057 A and the US 2,431,721 A arrangements for cooling drinking water in particular can be found. The drinking water is located in a container in which there is a spiral body, to which liquid coolant is supplied and then expanded in this.

Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, eine Anordnung der eingangs genannten Art so weiterzubilden, dass diese problemlos unter Berücksichtigung der Nutzeranforderungen betrieben werden kann, wobei der Installationsaufwand im Vergleich zu bekannten Konstruktionen reduziert werden soll.The present invention is based on the object of developing an arrangement of the type mentioned at the outset in such a way that it can be operated without problems taking into account the user requirements, the installation effort being reduced in comparison to known constructions.

Die vorliegende Erfindung ist in den unabhängigen Ansprüchen 1 und 9 offenbart. Weitere Ausführungsbeispiele sind in den abhängigen Ansprüchen offenbart. Zur Lösung der Aufgabe sieht die Erfindung vor, dass die Anordnung stromlos betrieben ist, indem das erste Mittel zum Temperieren der Flüssigkeit und das zweite Mittel zum Zuführen von Flüssigkeit in das Becken und zum Regeln des Flüssigkeitsniveaus in dem Becken benutzt werden, die rein mechanisch arbeiten.
Erfindungsgemäß wird eine autarke Anordnung zur Verfügung gestellt, für die elektrische Energie nicht benötigt wird. Hierzu ist insbesondere vorgesehen, dass das Mittel zum Kühlen der Flüssigkeit einen in der Flüssigkeit angeordneten Wärmetauscher, insbesondere Wärmetauscheiplatte, umfasst, der über ein mechanisches Ventil eines mechanischen Temperaturreglers mit einer wasserführenden Leitung verbunden ist, wobei sich der Fühler des Temperaturreglers in der Flüssigkeit befindet.The present invention is disclosed in independent claims 1 and 9. Further embodiments are disclosed in the dependent claims. To achieve the object, the invention provides that the arrangement is operated without current by using the first means for tempering the liquid and the second means for supplying liquid into the basin and for regulating the liquid level in the basin, which operate purely mechanically ,
According to the invention, an autonomous arrangement is made available for which electrical energy is not required. For this purpose, it is provided in particular that the means for cooling the liquid comprises a heat exchanger, in particular heat exchange plate, arranged in the liquid, which is connected to a water-carrying line via a mechanical valve of a mechanical temperature regulator, the sensor of the temperature regulator being located in the liquid.

Insbesondere ist vorgesehen, dass der Wärmetauscher einen im Bodenbereich des Beckens verlaufenden Wasseranschluss und im Kopfbereich des Wärmetauschers einen ggfs. von einem Rückschlagventil verschließbaren Ablauf aufweist.In particular, it is provided that the heat exchanger has a water connection running in the bottom region of the basin and, in the head region of the heat exchanger, an outlet which can be closed by a check valve.

Des Weiteren zeichnet sich die Erfindung dadurch aus, dass die Mittel zum Zuführen von Flüssigkeit in das Becken eine Flüssigkeit führende Leitung umfassen, die mit dem Zulauf zum Becken verbunden ist, wobei in der Leitung ein mechanisches Ventil angeordnet ist, das über ein Verbindungselement mit einem in der Flüssigkeit des Beckens vorhandenen Schwimmer verbunden ist.Furthermore, the invention is characterized in that the means for supplying liquid to the basin comprise a liquid-carrying line which is connected to the inlet to the basin, a mechanical valve being arranged in the line, which is connected via a connecting element to a swimmers present in the liquid of the pool is connected.

Somit werden Mittel zum Temperieren bzw. zum Regeln des Flüssigkeitsniveaus in dem Becken benutzt, die rein mechanisch arbeiten, ohne dass es elektrischer Energie bedarf. Eine Installation ohne elektrische Leitungen ist möglich. Ferner kann problemlos ein Einsatz in einem ex-geschützten Raum erfolgen.Thus, means for temperature control or for regulating the liquid level in the basin are used, which work purely mechanically without the need for electrical energy. Installation without electrical cables is possible. It can also be used in an explosion-proof room without any problems.

Gegenstand der Erfindung ist auch ein Verfahren zum Kühlen von Gegenständen in einem mit Flüssigkeit gefüllten Becken mit Zu- und Ablauf, Füllstandssensor, Temperatursensor sowie einer ersten Einrichtung zum Temperieren der Flüssigkeit und einer zweiten Einrichtung zum Zuführen von Flüssigkeit in das Becken, wobei die Anordnung stromlos betrieben wird, indem das erste Mittel zum Temperieren der Flüssigkeit und das zweite Mittel zum Zuführen von Flüssigkeit in das Becken und zum Regeln des Flüssigkeitsniveaus in dem Becken benutzt werden, die rein mechanisch arbeiten. Dabei umfasst die erste Einrichtung einen in der Flüssigkeit angeordneten Wärmetauscher, wie Wärmetauscherplatte, der mit einem mechanischen Ventil eines mechanischen Temperaturreglers verbunden ist, dessen Fühler sich in der Flüssigkeit befindet, wobei das Ventil mit einer Flüssigkeit führenden Leitung verbunden ist. Die zweite Einrichtung umfasst eine die Flüssigkeit führende Leitung, die mit dem Zulauf verbunden ist, wobei in der Leitung ein mechanisches Ventil des Zulaufs angeordnet ist, das über ein Verbindungselement, wie Hebel, mit einem in dem Becken vorhandenen und in der Flüssigkeit befindlichen Schwimmer verbunden ist.The invention also relates to a method for cooling objects in a liquid-filled basin with inlet and outlet, level sensor, temperature sensor and a first device for tempering the liquid and a second device for supplying liquid into the basin, the arrangement being without current is operated using the first means for tempering the liquid and the second means for supplying liquid into the basin and for regulating the liquid level in the basin, which operate purely mechanically. The first device comprises a heat exchanger, such as a heat exchanger plate, arranged in the liquid, which is connected to a mechanical valve of a mechanical temperature controller, the sensor of which is located in the liquid, the valve being connected to a line carrying liquid. The second device comprises a line carrying the liquid which is connected to the inlet, wherein a mechanical valve of the inlet is arranged in the line and is connected via a connecting element, such as a lever, to a float which is present in the pool and is in the liquid is.

Weitere Einzelheiten, Vorteile und Merkmale der Erfindung ergeben sich aus den Ansprüchen.Further details, advantages and features of the invention result from the claims.

Der einzigen Figur ist eine Prinzipdarstellung einer Anordnung 10 zum Kühlen von insbesondere Gussteilen zu entnehmen. Die Anordnung 10 umfasst als wesentlichen Bestandteil ein z.B. aus verzinktem Stahl- oder Edelstahlblech bestehendes Becken 12, das mit einer Flüssigkeit 14 wie Wasser gefüllt ist. Ferner befindet sich in dem Becken 12 ein Wärmetauscher in Form einer Thermoplatte 16, die vorzugsweise entlang einer Längsseite einer Beckenwandung angeordnet ist, um die Flüssigkeit 14 im erforderlichen Umfang zu kühlen.The sole figure shows a basic illustration of an arrangement 10 for cooling castings in particular. The arrangement 10 comprises, as an essential component, e.g. existing pool 12 made of galvanized steel or stainless steel sheet, which is filled with a liquid 14 such as water. Furthermore, in the basin 12 there is a heat exchanger in the form of a thermal plate 16, which is preferably arranged along a long side of a basin wall, in order to cool the liquid 14 to the required extent.

Ferner ist ein Schwimmerventil 17 vorgesehen, das über einen mit einem auf bzw. in der Flüssigkeit 14 schwimmenden Schwimmer 18 über insbesondere ein Hebelelement verbunden ist, um in Abhängigkeit von der Füllstandshöhe in dem Becken 12 Wasser nachlaufen lassen oder dieses abzusperren. Zum Fördern des Wassers wird der in der Wasserleitung vorhandene Wasserdruck benutzt, ohne dass ein weiteres Fördermittel erforderlich ist.Furthermore, a float valve 17 is provided, which is connected via a float 18 floating on or in the liquid 14, in particular via a lever element, in order to supply water as a function of the fill level in the basin 12 Let it run or shut it off. The water pressure in the water pipe is used to convey the water without the need for any further conveying means.

Um die Temperatur zu regeln, wird ein mechanischer Temperaturregler, vorzugsweise in Form eines Thermostatventils 20, benutzt, das mit einem sich in der Flüssigkeit 14 befindlichen Temperaturfühler 22 zum Schalten des Thermostatventils 20 verbunden ist. Des Weiteren ergibt sich aus der Prinzipdarstellung, dass ein Flüssigkeits- wie Wasseranschluss 24 über eine Leitung 26 sowohl zu dem Schwimmerventil 17 (Abzweigung 28) als auch zu dem Thermostatventil 20 (Abzweigung 30) führt. Die mit dem Schwimmerventil 17 verbundene Abzweigung 28 der Leitung 26 mündet in einem im Bodenbereich des Beckens 12 vorhandenen Zulauf 29. Vom Kopfbereich des Beckens 12 geht eine Leitung 32 aus, die die Funktion einer Überlaufleitung hat und zu einem Wasserablauf 34 führt. Der Anschluss, also der Ablauf ist mit dem Bezugszeichen 31 gekennzeichnet.In order to regulate the temperature, a mechanical temperature regulator, preferably in the form of a thermostatic valve 20, is used, which is connected to a temperature sensor 22 in the liquid 14 for switching the thermostatic valve 20. It also follows from the basic diagram that a liquid and water connection 24 leads via a line 26 both to the float valve 17 (branch 28) and to the thermostatic valve 20 (branch 30). The branch 28 of the line 26 connected to the float valve 17 opens into an inlet 29 in the bottom region of the basin 12. A line 32 extends from the top region of the basin 12 and functions as an overflow line and leads to a water drain 34. The connection, that is to say the sequence, is identified by reference number 31.

Die zu dem Thermostatventil 20 führende Leitung 30 mündet im Bodenbereich des Wärmetauschers 16 bzw. der Thermoplatte. Der Ablauf des Wärmetauschers 16 geht vom Kopfbereich aus und führt über eine Leitung 36 zu dem Wasserablauf 34.The line 30 leading to the thermostatic valve 20 opens into the bottom area of the heat exchanger 16 or the thermal plate. The outlet of the heat exchanger 16 starts from the head region and leads to the water outlet 34 via a line 36.

Die Anordnung 10 kann als autarkes System bezeichnet werden, da keinerlei elektrische Energie benötigt wird, um innerhalb des Beckens 12 den erforderlichen Flüssigkeitsstand sicherzustellen und gleichzeitig die Temperatur so einzustellen, dass die notwendige Kühlung der einzubringenden Gussteile erfolgt.The arrangement 10 can be referred to as an autonomous system, since no electrical energy is required in order to ensure the required liquid level within the basin 12 and, at the same time, to set the temperature in such a way that the cast parts to be introduced are cooled.

So wird dann das Schwimmerventil 17 geöffnet, wenn mittels des Schwimmers 18 ein Flüssigkeitsstand erfasst wird, der unterhalb eines einzuhaltenden liegt. In diesem Fall wird das an dem Schwimmerventil 17 anstehende und unter Druck stehende Wasser im Bodenbereich des Beckens 12 eingeleitet solange, bis der Schwimmer 18 das Schwimmerventil 17 schließt. Insoweit wird die Funktion eines Schwimmer- bzw. Füllventils erfüllt, das ein durch einen Schwimmer gesteuertes Ventil ist, d. h., wird ein bestimmter Flüssigkeitsstand unterschritten, öffnet sich das Ventil, und bei Erreichen des Soll-Flüssigkeitsstandes schließt dieses wieder.Thus, the float valve 17 is opened when a liquid level is detected by the float 18, which is below a level to be maintained. In this case, the water which is present at the float valve 17 and is under pressure is introduced into the bottom region of the basin 12 until the float 18 closes the float valve 17. In this respect, the function of a float or filling valve is fulfilled, which is a valve controlled by a float, ie if a certain liquid level is undershot, the valve opens and when the desired liquid level is reached, the valve closes again.

Auch an dem Thermostatventil 20 steht das Wasser unter Druck an und fließt somit dann in den Wärmetauscher 16, wenn das Thermostatventil 20 durchgeschaltet ist, also der Temperaturfühler 22 eine Temperatur in der Flüssigkeit 14 erfasst, die oberhalb einer Solltemperatur liegt. Da die Flüssigkeit 14 in dem Wärmetauscher 16 in dessen Bodenbereich eingeführt wird und der Abfluss im Kopfbereich liegt, bedarf es weiterer gesonderter Ventile nicht. Allerdings kann im Auslassbereich bzw. in der Leitung 36 ein mechanisch arbeitendes Rückschlagventil vorgesehen sein.The water is also under pressure at the thermostatic valve 20 and thus flows into the heat exchanger 16 when the thermostatic valve 20 is switched on, that is to say the temperature sensor 22 detects a temperature in the liquid 14 which is above a desired temperature. Since the liquid 14 is introduced into the heat exchanger 16 in the bottom area thereof and the outflow is in the head area, no further separate valves are required. However, a mechanically operating check valve can be provided in the outlet area or in line 36.

Das Thermostatventil 20 kann aber auch in klassischer Weise arbeiten, d. h., in Abhängigkeit von der Temperatur der Flüssigkeit 14 kann ein niedriger oder höherer Durchfluss erfolgen, damit in dem Becken 12 die gewünschte Flüssigkeitstemperatur herrscht.The thermostatic valve 20 can also work in a classic manner, i. that is, depending on the temperature of the liquid 14, a lower or higher flow can take place so that the desired liquid temperature prevails in the basin 12.

Claims (12)

  1. Arrangement (10) for cooling objects, in particular cast parts, comprising a tank (12) containing fluid (14) with an inflow and outflow (29, 31), filling level sensor (17, 18), temperature sensor (20, 22) and a first device (16) for controlling the temperature of the fluid and a second device (26, 28) for supplying fluid into the tank (12),
    characterised in that the arrangement (10) is operated self-sufficiently, in that the first device (16) is used for controlling the temperature of the fluid and the second device (26, 28) is used for supplying fluid into the tank (12) and for controlling the level of fluid in the tank (12) which operate purely mechanically.
  2. Arrangement according to claim 1, characterised in that the first device (16) for controlling the temperature of the fluid comprises a heat exchanger (16) arranged in the fluid (14), in particular a heat exchanger plate, which is connected to a mechanical valve (20) of a mechanical temperature controller (20, 22), the sensor (22) of which is located in the fluid (14), wherein the mechanical valve (20) is connected to a pipe (26) carrying fluid.
  3. Arrangement according to claim 1 or 2, characterised in that the second device (26, 28) comprises a pipe or the fluid-carrying pipe (26, 28) which is connected to the inflow (29), wherein in the pipe a mechanical valve (17) of the inflow (29) is arranged, which is connected via a connecting element, such as a lever, to a float (18) provided in the tank (12) and located in the fluid (14).
  4. Arrangement according to at least one of the preceding claims,
    characterised in that the inflow (29) is located in the bottom part of the tank (12).
  5. Arrangement according to at least one of the preceding claims,
    characterised in that the outflow (31) is located in the upper edge area of the tank (12).
  6. Arrangement according to at least one of the preceding claims,
    characterised in that the heat exchanger (16) has a water connection in the bottom part of the tank (12) and an outflow in the head area of the heat exchanger, in which or in an adjoining pipe (36) preferably a check valve is arranged.
  7. Arrangement according to at least one of the preceding claims,
    characterised in that the tank (12) is made of galvanised steel sheet or stainless steel sheet.
  8. Arrangement according to claim 2, characterised in that the water in the pipe (26) carrying fluid is pressurised for conveying the water.
  9. Method for cooling objects, in particular cast parts, in a tank (12) containing a fluid (14) with an inflow and outflow (29, 31), filling level sensor (17, 18), temperature sensor (20, 22) and a first device (16) for controlling the temperature of the fluid and a second device (26, 28) for supplying fluid into the tank (12),
    characterised in that the arrangement (10) is operated self-sufficiently, in that the first device (16) is used for controlling the temperature of the fluid and the second device (26, 28) is used for supplying fluid into the tank (12) and for controlling the level of fluid in the tank (12) which operate purely mechanically.
  10. Method according to claim 9, characterised in that the first device (16) for controlling the temperature of the fluid (14) comprises a heat exchanger (16) arranged in the fluid (14), in particular a heat exchanger plate, which is connected to a mechanical valve (20) of a mechanical temperature controller (20, 22), the sensor (22) of which is located in the fluid (14), wherein the mechanical valve (20) is connected to a pipe (26) carrying fluid.
  11. Method according to claim 9 or 10, characterised in that the second device (26, 28) comprises a pipe (26, 28) carrying the fluid, which is connected to the inflow (29), wherein a mechanical valve (17) of the inflow (29) is arranged in the pipe (26, 28) which valve is connected via a connecting element, such as a lever, to a float (18) provided in the tank (12) and located in the fluid (14).
  12. Method according to claim 11, characterised in that the water in the pipe (26, 28) carrying fluid is pressurised for conveying the water.
EP15200874.4A 2014-12-19 2015-12-17 Assembly for the cooling of objects Active EP3034968B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202014106176.2U DE202014106176U1 (en) 2014-12-19 2014-12-19 Arrangement for cooling objects

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EP3034968A1 EP3034968A1 (en) 2016-06-22
EP3034968B1 true EP3034968B1 (en) 2020-01-22

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CN (1) CN105710351B (en)
DE (1) DE202014106176U1 (en)

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Publication number Priority date Publication date Assignee Title
US9846002B2 (en) * 2014-12-18 2017-12-19 GM Global Technology Operations LLC Method and apparatus to determine an effective temperature of coolant fluid for a heat generating device
CN111570768B (en) * 2020-03-31 2021-10-15 扬州戴卡轮毂制造有限公司 Intelligent water cooling plant is used in wheel hub production

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GB608057A (en) * 1945-02-06 1948-09-09 Westinghouse Electric Int Co Improvements in or relating to refrigerating apparatus
US2431721A (en) * 1945-11-21 1947-12-02 Westinghouse Electric Corp Temperature and liquid level control for refrigeration apparatus
US2538016A (en) * 1948-09-18 1951-01-16 Dole Refrigerating Co Liquid cooler
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JP3125975B2 (en) 1995-06-30 2001-01-22 新東工業株式会社 Cooling line for poured molds
JPH1150212A (en) * 1997-07-31 1999-02-23 Mazda Motor Corp Method for heat treating light alloy casting
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DE202014106176U1 (en) 2016-03-24
US10234219B2 (en) 2019-03-19
CN105710351A (en) 2016-06-29
US20160178296A1 (en) 2016-06-23
CN105710351B (en) 2021-08-27
EP3034968A1 (en) 2016-06-22

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