EP2226582B1 - Dispositif de régulation de la température pour liquides - Google Patents

Dispositif de régulation de la température pour liquides Download PDF

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Publication number
EP2226582B1
EP2226582B1 EP10002116.1A EP10002116A EP2226582B1 EP 2226582 B1 EP2226582 B1 EP 2226582B1 EP 10002116 A EP10002116 A EP 10002116A EP 2226582 B1 EP2226582 B1 EP 2226582B1
Authority
EP
European Patent Office
Prior art keywords
temperature
container
control device
liquid
heat exchanger
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.)
Not-in-force
Application number
EP10002116.1A
Other languages
German (de)
English (en)
Other versions
EP2226582A3 (fr
EP2226582A2 (fr
Inventor
Tim Köckritz
Michael Dühren
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.)
Proserve Engineering Ug (haftungsbeschraenkt)
Original Assignee
Proserve Engineering Ug (haftungsbeschrankt)
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Publication date
Application filed by Proserve Engineering Ug (haftungsbeschrankt) filed Critical Proserve Engineering Ug (haftungsbeschrankt)
Publication of EP2226582A2 publication Critical patent/EP2226582A2/fr
Publication of EP2226582A3 publication Critical patent/EP2226582A3/fr
Application granted granted Critical
Publication of EP2226582B1 publication Critical patent/EP2226582B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/0009—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters of the reduced pressure or vacuum steam type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
    • F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
    • 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
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • 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
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect

Definitions

  • the invention relates to a tempering device for liquids with a fluid line (1), through which the liquid to be tempered can be passed, and with a container (2) for a heat exchange medium, through which the fluid line (1) is guided.
  • Such temperature control devices are used in all areas of technology in which liquids must comply with exact temperature limits, e.g. in injection molding plants, refinery plants, but also in viscosity measuring devices for liquids.
  • the WO01 / 31265A1 describes a water heater in which water to be heated is passed in a conduit through a closed container in which water is in equilibrium between the liquid and the gaseous phase.
  • the water in the container is heated by a burner or an electrical resistance heater.
  • the liquid to be tempered is passed through a conduit whose outer shell is flowed around by a liquid heat exchange medium.
  • the temperature of the heat exchanger medium is set as a function of the measured final temperature of the liquid.
  • the heat exchange medium is mixed together from two reservoirs with different temperatures by means of a controlled mixing valve.
  • the object of the invention is to provide a reliable tempering, which does not have this disadvantage.
  • the heat exchange medium is in an equilibrium between the liquid and the gaseous phase, the heat exchange medium is always at the equilibrium temperature, regardless of the volume of heat exchanged with the volume flow. A regulation of the temperature of the heat exchanger medium is therefore not required, so that control vibrations can not occur.
  • a compensation device is provided according to the invention, by which the exchanged between the liquid to be tempered liquid and the heat exchange medium heat quantity is compensated. On This avoids that the amount of heat exchanged leads to a shift in the phase equilibrium.
  • This compensation device can be an expansion vessel or a heating and / or cooling device according to particularly advantageous embodiments.
  • electrical heating and / or cooling devices such as heating resistors, heating transistors or Peltier elements offer.
  • the heating and / or cooling device is formed by a second fluid line, which passes through the container, and through which a second heat exchange medium is guided.
  • a temperature sensor for measuring the final temperature of the liquid is provided after exiting the container. It may be additionally or alternatively provided a temperature sensor for the temperature of the liquid prior to entry into the container. Furthermore, a sensor for the pressure of the gas phase of the heat exchange medium may be provided in the container.
  • the compensation device is controlled by means of a controller. In this way, the balance of the heat exchange medium can keep particularly constant.
  • the container may be thermally insulated from the ambient atmosphere to avoid affecting ambient temperature to phase equilibrium.
  • the figure shows the basic structure of a tempering device according to the invention.
  • a liquid X to be tempered is conducted with a volume flow V through a first fluid line 1.
  • it is water, which is passed through the fluid line 1 with a volume flow of 2 l / h.
  • the water is fed to the line 1 at a temperature of 90 ° C and is to be tempered to a temperature of 80 ° C ⁇ 0.1 ° C. In doing so, a heat flow Q ⁇ of 23.2 J / s must be removed from the water.
  • the water in the fluid line 1 is passed through a container 2, in which a heat exchange medium Y is located.
  • the heat exchange medium is also water.
  • the container has in the example a volume of 20 liters and contains 10 liters of water.
  • the remaining volume of the container 2 is filled with air, the air pressure is set to a value which corresponds to the vapor pressure of the heat exchange medium at the target temperature, in the example, that is 475 hpa.
  • the volume of the container 2 is constant. But it can also be an expansion tank used equally.
  • the heat exchange medium in the container 2 is heated to its boiling point.
  • the heat flow of 23.2 J / s is completely implemented by evaporation of the heat exchange medium, wherein in the example about 10 mg / s of water are evaporated.
  • a second heat exchanger medium Z is passed through the container 2, in the example also water at a temperature of 20 ° C. At the second fluid line 3 condenses a part of the vaporized heat exchange medium and thus outputs the heat absorbed during the evaporation of heat to the second heat exchange medium.
  • the second fluid line is dimensioned such that through its surface at maximum flow, when the temperature of the second heat exchanger medium remains practically constant, the maximum amount of heat to be expected at the prevailing temperature difference can be transported.
  • the fluid lines 1, 3 are shown in simplified form in the figure as straight tubes, but will normally be designed as spiral tube coils in order to achieve the surfaces required for the heat transfer.
  • the lines may be spatially separated from each other or intertwined. The latter version allows a particularly compact design. It can also be arranged below the normal liquid level of the heat exchange medium in the container 2, both fluid lines.
  • the fluid lines 1,3 and the container 2 can be made of materials commonly used in plant engineering, such as e.g. Copper, aluminum or stainless steel. For particularly aggressive media special alloys or even plastics can be used. The determination of the respectively suitable materials as well as the geometries required for the required heat flow is readily possible for the person skilled in the art.
  • the operating point of the temperature control device described is determined by the boiling point of the heat exchanger medium in the container 2, which in turn is dependent on the pressure prevailing in the container 2 gas pressure. By evaporating the heat exchange medium, the gas pressure is increased, which also leads to an increase in the boiling temperature.
  • the amount of heat supplied for example, by fluctuation of
  • Input temperature of the water to be tempered varies by 10%, the amount of evaporated water changes by 1 mg / s. In the available gas volume of 10 l, this leads to a pressure change of about 0.1 hpa / s, while the boiling temperature shifts by less than 0.05 K / hpa, ie only by just under 0.005 K / s
  • a temperature sensor 4 may be provided at the outlet of the fluid line 1, which measures the temperature of the liquid to be tempered.
  • a pressure sensor 5 is arranged in the container 2, which measures the prevailing gas pressure.
  • a temperature sensor 6 may be provided at the inlet of the fluid line 1, which measures the inlet temperature of the liquid to be tempered.
  • the measured values of the sensors 4, 5, 6 are fed to a controller 7.
  • the temperature difference prevailing over the surface of the second fluid line and thus the amount of heat transported changes.
  • the amount of heat exchange medium condensing on the second fluid line 3 is adjusted so that the gas pressure in the container 2 and thus the boiling temperature of the heat exchange medium remain constant.
  • an adaptation of the volume flow of the second heat exchanger medium can take place even before the occurrence of a pressure or temperature deviation.
  • the operating pressure in the container 2 can be varied in order to adapt the boiling temperature of the heat exchanger medium to the respective intended use.
  • a heating element 10 may be provided in the container 1, e.g. in the form of a conventional heating coil.
  • the heat exchange medium will remain collected at the bottom of the container.
  • an agitator 11 may additionally be provided, shown in the figure as a propeller.
  • a mixing device 12 may be provided which provides for a continuous mixing of the liquid and gas phases in the container, e.g. in the form of an ultrasonic nebuliser. This ensures that throughout the container volume there is always a balance of the phases. In this case, of course, the heat input must be taken into account by the mixing device in the dimensioning of the tempering.
  • a Verregnungs e.g. a Verregnungs
  • the mixing device works without pressure, otherwise the phase equilibrium of the heat exchanger medium would be affected.
  • the container may be surrounded by an insulation 13.
  • tempering device can be tempered with minimal effort and larger volume flows of any liquids, this can be scaled according to the device described in the example.
  • other media may be used as the heat exchange medium.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Control Of Temperature (AREA)

Claims (8)

  1. Dispositif de régulation de la température pour des liquides, comprenant une conduite de fluide (1) à travers laquelle peut être conduit le liquide devant être régulé en température, et comprenant un récipient (2) pour un milieu d'échange thermique à travers lequel est guidé la conduite de fluide (1), le récipient présentant un volume fermé à l'intérieur duquel le milieu d'échange thermique se trouve en équilibre entre la phase liquide et la phase gazeuse, et un dispositif de compensation étant prévu pour compenser la quantité de chaleur échangée entre le fluide devant être régulé en température et le milieu d'échange thermique, caractérisé en ce qu'une sonde de mesure (4) pour la température du liquide devant être régulé en température est prévue après le passage à travers le récipient et/ou une sonde de mesure (6) pour la température du liquide devant être régulé en température est prévue avant le passage à travers le récipient et/ou une sonde de mesure (5) est prévue pour la pression dans le récipient, et un dispositif de commande (7) est prévu pour commander le dispositif de compensation en fonction des températures mesurées et/ou des pressions mesurées, afin d'éviter un décalage de l'équilibre des phases dû à la quantité de chaleur échangée.
  2. Dispositif de régulation de la température selon la revendication 1, caractérisé en ce que le dispositif de compensation est un vase d'expansion.
  3. Dispositif de régulation de la température selon la revendication 1, caractérisé en ce que le dispositif de compensation est un dispositif de refroidissement.
  4. Dispositif de régulation de la température selon la revendication 1, caractérisé en ce que le dispositif de compensation est un dispositif de chauffage.
  5. Dispositif de régulation de la température selon l'une quelconque des revendications 3 à 4, caractérisé en ce que le dispositif de compensation est un élément de chauffage et/ou de refroidissement électrique.
  6. Dispositif de régulation de la température selon l'une quelconque des revendications 3 à 4, caractérisé en ce que le dispositif de compensation est une deuxième conduite de fluide (3) guidée à travers le récipient, à travers laquelle est conduit un deuxième milieu d'échange thermique.
  7. Dispositif de régulation de la température selon la revendication 6, caractérisé par une soupape (8) prévue pour faire varier la quantité de débit du deuxième milieu échangeur de chaleur à travers le récipient.
  8. Dispositif de régulation de la température selon l'une quelconque des revendications précédentes, caractérisé en ce que le récipient est isolé thermiquement par rapport à l'atmosphère environnante.
EP10002116.1A 2009-03-04 2010-03-02 Dispositif de régulation de la température pour liquides Not-in-force EP2226582B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009011168 2009-03-04
DE102009011698 2009-03-09
DE102009038348A DE102009038348A1 (de) 2009-03-04 2009-08-21 Temperiereinrichtung für Flüssigkeiten

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
DE102009038434 Previously-Filed-Application 2009-08-21

Publications (3)

Publication Number Publication Date
EP2226582A2 EP2226582A2 (fr) 2010-09-08
EP2226582A3 EP2226582A3 (fr) 2013-11-06
EP2226582B1 true EP2226582B1 (fr) 2018-11-07

Family

ID=42153921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10002116.1A Not-in-force EP2226582B1 (fr) 2009-03-04 2010-03-02 Dispositif de régulation de la température pour liquides

Country Status (2)

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EP (1) EP2226582B1 (fr)
DE (2) DE202009018655U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108279185B (zh) * 2018-03-21 2024-03-08 江苏省产品质量监督检验研究院 一种气液组份粘度的测量装置及测量方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60164177A (ja) * 1984-02-06 1985-08-27 Matsushita Electric Ind Co Ltd 太陽熱集熱装置
JP3359555B2 (ja) * 1997-02-07 2002-12-24 友子 原嶋 ヒートパイプ、及び同ヒートパイプの製造方法、並びに同ヒートパイプの利用方法
FR2800447B1 (fr) * 1999-10-28 2001-12-07 Armines Ass Pour La Rech Et Le Procede et dispositif d'accumulation de chaleur a effet caloduc
WO2004048855A1 (fr) * 2002-11-28 2004-06-10 Kohno Company, Limited Radiateur de type a panneaux
DE502004009974D1 (de) * 2004-11-16 2009-10-08 Abb Schweiz Ag Hochspannungsleistungsschalter mit Kühlung

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
DE202009018655U1 (de) 2012-07-12
EP2226582A3 (fr) 2013-11-06
DE102009038348A1 (de) 2010-09-09
EP2226582A2 (fr) 2010-09-08

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