DE19653790B4 - Methods and apparatus for freezing the liquid portion in media - Google Patents
Methods and apparatus for freezing the liquid portion in media Download PDFInfo
- Publication number
- DE19653790B4 DE19653790B4 DE19653790A DE19653790A DE19653790B4 DE 19653790 B4 DE19653790 B4 DE 19653790B4 DE 19653790 A DE19653790 A DE 19653790A DE 19653790 A DE19653790 A DE 19653790A DE 19653790 B4 DE19653790 B4 DE 19653790B4
- Authority
- DE
- Germany
- Prior art keywords
- central spindle
- reaction space
- planetary rollers
- media
- ice
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
- B01D1/222—In rotating vessels; vessels with movable parts
- B01D1/223—In rotating vessels; vessels with movable parts containing a rotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/10—Vacuum distillation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/12—Molecular distillation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/485—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with three or more shafts provided with screws
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
- F28D9/0075—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements the plates having openings therein for circulation of the heat-exchange medium from one conduit to another
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0081—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by a single plate-like element ; the conduits for one heat-exchange medium being integrated in one single plate-like element
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Verfahren
zum Gefrieren des Flüssigkeitsanteiles
in Medien, insbesondere zum Gefrieren von Flüssigkeiten,
wobei die
Medien durch einen Reaktionsraum geführt werden, in dem sie eine
Abkühlung
erfahren, dadurch gekennzeichnet, daß der Reaktionsraum (1) eine
zylindrische Form hat und in dem Reaktionsraum (1) eine Zentralspindel
(3) mit umlaufenden Planetwalzen (2) angeordnet ist,
wobei
die Zentralspindel (3) und die Planetwalzen (2) umlaufen und die
Medien unter gleichzeitiger Durchmischung auf Gefriertemperatur
des Flüssigkeitsanteiles
gekühlt
werden.Method for freezing the liquid fraction in media, in particular for freezing liquids,
wherein the media are passed through a reaction space in which they undergo cooling, characterized in that the reaction space (1) has a cylindrical shape and in the reaction space (1) a central spindle (3) is arranged with circulating planetary rollers (2),
wherein the central spindle (3) and the planetary rollers (2) rotate and the media are cooled while simultaneously mixing to freezing temperature of the liquid portion.
Description
Die Erfindung betrifft ein Verfahren zum Gefrieren des Flüssigkeitsanteiles in Medien gemäß Anspruch 1, Vorrichtung gemäß dem Oberbegriff der Ansprüche 7, 8 und 9 sowie eine Verwendung gemäß Anspruch 13. Dies geschieht mit Hilfe eines Wärmeaustauschaggregates, wobei die Medien durch einen Reaktionsraum geführt werden, in dem sie eine Abkühlung erfahren.The The invention relates to a method for freezing the liquid fraction in media according to claim 1, device according to the preamble the claims 7, 8 and 9 and a use according to claim 13. This happens with the help of a heat exchange unit, wherein the media are passed through a reaction space in which they have a Cooling Experienced.
Besondere Probleme ergeben sich in Wärmeaustauschaggregaten immer dann, wenn aufgrund physikalisch-chemischer Gegebenheiten Einschränkungen vorgegeben sind, z.B. durch die Temperaturempfindlichkeit von Produkten oder hohe Viskosität der Medien, die zu inhomogenen Temperaturverteilungen führen können. Auch bei Auftreten von Änderungen von Aggregatzuständen ändern sich die verfahrenstechnischen Bedingungen in einem Maße, daß hier besondere Verdampferbauformen entwickelt werden mussten.Special Problems arise in heat exchange units always, if due to physical-chemical conditions restrictions are predetermined, e.g. by the temperature sensitivity of products or high viscosity the media, which can lead to inhomogeneous temperature distributions. Also when changes occur of aggregate states change the procedural conditions to an extent that special here Evaporator types had to be developed.
Die Verteilung der Kälte ist für die Kühl- und Klimatisierungssysteme von entscheidender Bedeutung. Üblicherweise wird die Kälte in einer zentralen Kühlanlage erzeugt und mit Kälteträgern in Rohrleitungsnetzen zu den Verbrauchsstellen transportiert. Bei großflächigen Verteilungsnetzen steigt der Aufwand an Installation, Überwachung und Betrieb der zugehörigen Umwälzpumpen sehr stark an. Daraus ergibt sich die Notwendigkeit, Kälteträger möglichst großer spezifischer Kühlleistung zu verwenden, um die Abmessungen des Rohrleitungsnetzes und die umzupumpenden Mengen in Grenzen zu halten.The Distribution of the cold is for the cooling and air conditioning systems of crucial importance. Usually will the cold in a central cooling system generated and with brine in Piping networks transported to the points of consumption. For large distribution networks increases the effort of installation, monitoring and operation of the associated circulation pumps very strong. This results in the need to refrigerants as specific as possible cooling capacity to use the dimensions of the piping network and the umzupumpenden To limit quantities.
Die übertragbaren Kühlleistungen mit den üblichen Kälteträgern auf der Basis von Wasser, z.B. Kaltwasser bis etwa 5 Grad Celsius und Solemischungen unterhalb von 3 bis 5 Grad Celsius- oder Wasser-Glykol-Mischungen werden vor allem durch die spezifische Wärmekapazität des Wassers bestimmt. Es reichen ca. 4,1 kJ pro kg und Grad Celsius für die mit den wässrigen Kälteträgern übertragbaren Kühlleistungen nicht aus, weil sonst die Abmessungen der Rohrleitungsnetze zu groß würden. So werden häufig auch die zur Erzeugung der Kälte eingesetzten Kältemittel direkt umgepumpt. An den Verbrauchsstellen werden dann Verdampfer angeordnet, in denen effektiv die Kälte ausgetauscht wird.The transferable cooling capacity with the usual Brine on the base of water, e.g. Cold water to about 5 degrees Celsius and Sol mixtures below 3 to 5 degrees Celsius or water-glycol mixtures will be especially determined by the specific heat capacity of the water. It reach about 4.1 kJ per kg and degrees Celsius for those with the watery Refrigerants transferable cooling capacity not because otherwise the dimensions of the pipeline networks would be too large. So become common also for the production of cold used refrigerant pumped directly. At the consumption points then evaporator arranged, in which effectively the cold is exchanged.
Höhere spezifische Kälteleistungen können auch durch die Ausnutzung der latenten Schmelzwärmen von Inhaltsstoffen erreicht werden, die beim Phasenübergang fest-flüssig freigesetzt werden. Wasser ist in dieser Hinsicht ein sehr günstiges Medium, da die latente Schmelzwärme des Wassers mit 335 kJ pro kg sehr groß ist. Aus diesem Grunde kann mit Kälteträgern, in denen der Kühleffekt durch Schmelzen von Eis zu Wasser erzeugt wird, eine hohe spezifische Kühlleistung erreicht werden.Higher specific cooling capacities can also achieved by exploiting the latent heat of fusion of ingredients which are at the phase transition solid-liquid be released. Water is a very cheap one in this regard Medium, because the latent heat of fusion The water is very large with 335 kJ per kg. For this reason, can with Refrigerants, in which the cooling effect produced by melting ice to water, a high specific cooling capacity be achieved.
Die in den Verbrauchsstellen durch Schmelzen des Eisanteils freigesetzte "Kälte" muß in der zentralen Eiserzeugungsanlage jeweils wieder in das System eingespeist werden. Dies geschieht durch Erhöhen des Eisanteils beim Durchgang durch die Eiserzeugungsanlage. Eine derartige Eiserzeugungsanlage wird üblicherweise auf der Basis von Platten- oder Rohrbündel-Wärmetauscher realisiert. Dabei scheidet sich das Eis auf den Wandflächen der vom Kühlmedium durchströmten Austauschflächen ab und muß dann durch zusätzliche mechanische Abstreifvorrichtungen abgelöst werden. Dadurch steigt der Eisanteil in der Mischung und die damit gebundene latente Kälte immer weiter an. Die mit Eis angereicherte Mischung wird als Vorlauf mit Hilfe einer Pumpe erneut in das Kälteverteilungssystem eingespeist.The in the consumption points by melting of the ice fraction released "cold" must in the central ice making system each fed back into the system become. This is done by increasing the proportion of ice when passing through the ice-making plant. A Such ice making equipment is usually based on of plate or tube bundle heat exchangers realized. The ice separates on the wall surfaces of the cooling medium perfused Exchange surfaces and then has to by additional mechanical stripping devices are detached. This increases the Ice content in the mixture and the associated latent cold always continue on. The ice-enriched mixture is used as a forerun Help fed a pump again in the cooling distribution system.
Die auf der Basis von Platten- und Rohrbündelwärmetauschern bekannt gewordenen Eiserzeugungsaggregate sind durch die erforderlichen mechanischen Abstreifeinrichfungen aufwendig und störanfällig. Es hat sich gezeigt, daß diese Abstreifeinrichtungen mechanisch relativ stark belastet werden und deshalb nur eine begrenzte Lebensdauer haben. Die Verminderung der Störanfälligkeit durch einfachere technische Lösungen wäre deshalb im Hinblick auf eine höhere Zuverlässigkeit des Gesamtsystems wünschenswert.The become known on the basis of plate and shell and tube heat exchangers Ice making units are characterized by the required mechanical Abstreifeinrichfungen consuming and prone to failure. It has shown, that these Stripping devices are mechanically relatively heavily loaded and therefore have a limited life. The reduction of susceptibility through simpler technical solutions That would be why with regard to a higher reliability of the overall system desirable.
Aus
der
Gleichwohl hat sich die Erfindung die Aufgabe gestellt, ein Verfahren bzw. Vorrichtungen zum Gefrieren des Flüssigkeitsanteils in Medien zu entwickeln, bei denen die Störanfälligkeit gering und die Wärmeaustauschleistung hoch ist.nevertheless The object of the invention is to provide a method or Devices for freezing the liquid content in media to develop in which the susceptibility low and the heat exchange performance is high.
Das wird nach der Erfindung mit den Merkmalen des Hauptanspruches bzw. der Ansprüche 7, 8, 9 und 13 erreicht. Die erfindungsgemäßen Merkmale des Hauptanspruchs eine Planetwalzenanordnung, die für die Eiserzeugung sehr vorteilhaft ist. Dabei wird die sich auf den gekühlten Flächen bildende Eisschicht durch den mechanischen Eingriff der Verzahnungen, der von den umlaufenden Planetenspindeln ausgeübt wird, ständig abgelöst und in die Mischung überführt.The is according to the invention with the features of the main claim or the claims 7, 8, 9 and 13 reached. The features of the main claim according to the invention a planetary roller arrangement, which is very advantageous for ice production is. In this case, the ice formed on the cooled surfaces through mechanical engagement of teeth, that of revolving Planetary spindles exercised will, constantly superseded and transferred to the mixture.
Mit der vorliegenden Erfindung wird ein Wärmeaustauscher realisiert, der hinsichtlich der Behandlung von Fluiden höherer Viskosität sowie bei der Änderung von Aggregatzuständen besondere Vorteile aufweist.With the present invention, a heat exchanger is realized, with regard to the treatment of fluids of higher viscosity and at the change of aggregate states has special advantages.
Die Erfindung beinhaltet eine sinnreiche Verkopplung von thermodynamischen und mechanischen Eigenschaften, die sich gegenseitig begünstigen.The Invention involves an ingenious coupling of thermodynamic and mechanical properties that favor each other.
In
der Zeichnung ist ein Ausführungsbeispiel der
Erfindung dargestellt:
In einem zylindrischen Reaktionsraum
In a cylindrical reaction space
Gleichzeitig wird durch die aufeinander ablaufenden Walzen an den Berührungslinien eine gerichtete Kraft entsprechend der Schrägverzahnung erzeugt, die an den Kontaktflächen eine Abstreifwirkung ausübt, durch die etwaige Ablagerungen zugleich abgelöst werden. Hierdurch wird ein ständiger Selbstreinigungseffekt bewirkt, der die verfahrenstechnische Zuverlässigkeit des Aggregates sichert.simultaneously is due to the successive rolls on the lines of contact generates a directed force corresponding to the helical toothing, the the contact surfaces exerts a wiping action, be replaced by the possible deposits at the same time. This will be a constant self-cleaning effect causes the procedural reliability of the unit ensures.
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19653790A DE19653790B4 (en) | 1996-12-21 | 1996-12-21 | Methods and apparatus for freezing the liquid portion in media |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19653790A DE19653790B4 (en) | 1996-12-21 | 1996-12-21 | Methods and apparatus for freezing the liquid portion in media |
DE19655289A DE19655289B4 (en) | 1996-12-21 | 1996-12-21 | Apparatus and method for short path distillation |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19653790A1 DE19653790A1 (en) | 1998-06-25 |
DE19653790B4 true DE19653790B4 (en) | 2006-09-28 |
Family
ID=7815860
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19653790A Expired - Lifetime DE19653790B4 (en) | 1996-12-21 | 1996-12-21 | Methods and apparatus for freezing the liquid portion in media |
DE19655289A Expired - Lifetime DE19655289B4 (en) | 1996-12-21 | 1996-12-21 | Apparatus and method for short path distillation |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19655289A Expired - Lifetime DE19655289B4 (en) | 1996-12-21 | 1996-12-21 | Apparatus and method for short path distillation |
Country Status (1)
Country | Link |
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DE (2) | DE19653790B4 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4609947B2 (en) | 2003-11-24 | 2011-01-12 | インターテープ ポリマー コーポレーション | Method for preparing an adhesive using a planetary extruder |
DE102011112081A1 (en) | 2011-05-11 | 2015-08-20 | Entex Rust & Mitschke Gmbh | Process for processing elastics |
CN104736317B (en) | 2012-10-11 | 2017-09-22 | 恩特克斯拉斯特及米施克有限责任公司 | The extruder for the plastics being easily bonded for processing |
DE102017001093A1 (en) | 2016-04-07 | 2017-10-26 | Entex Rust & Mitschke Gmbh | Degassing during the extrusion of plastics with sintered metal filter discs |
DE102015001167A1 (en) | 2015-02-02 | 2016-08-04 | Entex Rust & Mitschke Gmbh | Degassing during the extrusion of plastics |
DE102016002143A1 (en) | 2016-02-25 | 2017-08-31 | Entex Rust & Mitschke Gmbh | Filling module in planetary roller extruder design |
DE102017004563A1 (en) | 2017-03-05 | 2018-09-06 | Entex Rust & Mitschke Gmbh | Degassing when extruding polymers |
DE102017003681A1 (en) | 2017-04-17 | 2018-10-18 | Entex Rust & Mitschke Gmbh | Cooling when extruding melt |
DE102017005999A1 (en) | 2017-05-28 | 2018-11-29 | Entex Rust & Mitschke Gmbh | Production of edible sausage pelts from collagen or similar substances by extrusion |
DE102017005998A1 (en) | 2017-06-23 | 2018-12-27 | Entex Rust & Mitschke Gmbh | Chemical process control for flowable feedstock in a planetary roller extruder |
DE102017006638A1 (en) | 2017-07-13 | 2019-01-17 | Entex Rust & Mitschke Gmbh | Filling module in planetary roller extruder design |
DE102018001412A1 (en) | 2017-12-11 | 2019-06-13 | Entex Rust & Mitschke Gmbh | Degassing during the extrusion of substances, preferably plastics |
WO2019166125A1 (en) | 2018-02-28 | 2019-09-06 | Entex Rust & Mitschke Gmbh | Method for producing and processing polymers and polymer mixtures in a modular planetary roller extruder |
EP3892441A1 (en) | 2020-04-07 | 2021-10-13 | Entex Rust & Mitschke GmbH | Retrofitting of an extruder system |
DE102020007239A1 (en) | 2020-04-07 | 2021-10-07 | E N T E X Rust & Mitschke GmbH | Cooling when extruding melts |
CN112933634B (en) * | 2021-03-04 | 2022-04-08 | 安徽金禾实业股份有限公司 | Circular column type sucrose-6-ester continuous production equipment and production process flow |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2687623A (en) * | 1951-01-19 | 1954-08-31 | Frick Co | Ice-making machine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL262464A (en) * | 1960-03-16 | 1900-01-01 | ||
DE1519563A1 (en) * | 1965-11-20 | 1970-02-12 | Basf Ag | Vacuum thin-film evaporator for highly viscous liquids |
-
1996
- 1996-12-21 DE DE19653790A patent/DE19653790B4/en not_active Expired - Lifetime
- 1996-12-21 DE DE19655289A patent/DE19655289B4/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2687623A (en) * | 1951-01-19 | 1954-08-31 | Frick Co | Ice-making machine |
Also Published As
Publication number | Publication date |
---|---|
DE19653790A1 (en) | 1998-06-25 |
DE19655289B4 (en) | 2012-02-16 |
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Owner name: ENTEX RUST & MITSCHKE GMBH, 44805 BOCHUM, DE |
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Free format text: OSER, ERWIN,DR., 50670 KOELN, DE |
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