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WO2002065098A1 - Liquid densimeter - Google Patents

Liquid densimeter Download PDF

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Publication number
WO2002065098A1
WO2002065098A1 PCT/ES2002/000056 ES0200056W WO02065098A1 WO 2002065098 A1 WO2002065098 A1 WO 2002065098A1 ES 0200056 W ES0200056 W ES 0200056W WO 02065098 A1 WO02065098 A1 WO 02065098A1
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WO
WIPO (PCT)
Prior art keywords
densimeter
hollow tube
liquid
tubular extension
transparent tubular
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.)
Ceased
Application number
PCT/ES2002/000056
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Spanish (es)
French (fr)
Inventor
Didier Ginés SOTO OLIVARES
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Soda SA
Original Assignee
Soda SA
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Filing date
Publication date
Application filed by Soda SA filed Critical Soda SA
Publication of WO2002065098A1 publication Critical patent/WO2002065098A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G01N33/14—Beverages
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/10—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials
    • G01N9/12—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers
    • G01N9/14—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers the body being built into a container

Definitions

  • the present invention relates to a densimeter for liquids, which finds particular application for measuring the density of wines and spirits contained in fermentation tanks.
  • the alcohol content of a wine or must in the fermentation phase is approximately directly related to the density of the wine or must, so the control of its evolutionary density is a good system for the control of the alcohol content or the content of sugars
  • densimeters are currently used of the aerometric type, which are density measurement devices constituted by a rod graduated in Baumé grades, which are placed in a test tube filled with a sample of the wine whose density or alcoholic strength is to be determined and on which they float.
  • the aerometer rises more or less above the free level of wine depending on the lower or higher density of the liquid, in direct application of the Archimedes principle.
  • the inventors have devised a densimeter for the continuous measurement of the density of the wine in a fermentation vessel, which is completely exempt from the previous drawback, and which significantly improves the functionality of the current Baumé type aerometers or densimeters.
  • the object of the present invention is a denser ether, of novel concept and functionality, which in essence is characterized by the fact that it comprises an elongated hollow tube communicated with two parallel ducts essentially perpendicular to the axis of the hollow tube, intended for be introduced in two holes made for this purpose in the wall of said liquid container reservoir whose density is to be measured, the hollow tube being coupled, in its upper part, to a transparent tubular extension of constant diameter, in fluid communication with The said hollow tube.
  • the densimeter comprises in its interior an aerometer, equipped with a graduated elongated upper rod and arranged free of vertical displacement but with a certain axial play inside the assembly.
  • the transparent tubular extension can be coupled to the elongated hollow tube by threading or, alternatively, it can be attached to the elongated hollow tube without continuity solution.
  • At least one of the two parallel ducts comprises a shut-off valve of the liquid passage.
  • the elongated hollow tube is open at its bottom and comprises, immediately upstream of the corresponding opening, a normally closed purge valve.
  • the densimeter according to the present invention comprises, at its upper end, an air valve, adapted for the introduction or extraction of air from inside the transparent tubular extension.
  • the parallel ducts are provided, at their ends intended to remain inside the tank under operating conditions, of two filters, adapted to prevent the passage of solid particles into the densimeter.
  • the densimeter comprises automatic free level sensing means that the liquid acquires inside the den a meter with respect to the graduated rod of the aerometer, means generating a signal representative of said level, and means transmitting said signal to a remote data processing device.
  • said automatic level sensing means are constituted by an electronic altimetric reader, communicated by means of a wire or wirelessly with said remote data processing device.
  • the liquid densimeter of the present invention is constituted, as main elements, by an elongated hollow tube 18, two parallel ducts 1 and 2, a transparent upper tubular extension 12 and an inner aerometer 13, constituted for example a Baumé type aerometer.
  • the liquid densimeter of the present invention is particularly designed for the determination of the density and alcoholic strength of the wine 6 contained in a fermentation vessel or tank 24. Therefore, the embodiment of the present invention is explained in relation to this application, although you should it is not limited to it, but the densimeter in question can be applied equally to other types of liquids. Therefore, the terms “wine 6" and “liquid 6” and “tank 24" or “fermentation tank 24" are used interchangeably in the following.
  • the elongated hollow tube 18 is open at its bottom and comprises, immediately upstream of the corresponding opening 19, a normally closed purge valve 11.
  • Both parallel ducts 1, 2 are essentially perpendicular to the axis of the hollow tube 18 and are adapted to collaborate with each other and corresponding holes made for this purpose in the wall 5 of the wine fermentation tank 24 6. In their operative position, the tubes 1, 2 remain in horizontal position.
  • the parallel ducts 1, 2 have at their ends intended to be inside the fermentation vessel 24, with two perforated filters 22, 23, which serve to prevent the introduction of solid particles, for example the skin or the seeds of the grape, inside the densimeter.
  • the diameter of the holes may be about 2 mouse.
  • the hollow tube 18 receives, in its upper part, the coupling of said transparent tubular extension 12, whose diameter is constant and with which it is in permanent fluid communication.
  • the transparent tubular extension 12 is coupled to the elongated hollow tube 18 by means of a thread 21.
  • the transparent tubular extension 12 can be attached to the elongated hollow tube 18 without continuity solution, that is to say forming a single piece with it.
  • the transparent tubular extension 12 comprises, at its upper end, an air valve 16, adapted for the introduction or extraction of air from the top of the transparent tubular extension 12.
  • the tubular extension 12 can be of any transparent material compatible with the liquid 6 whose density is to be measured - in this case it came - for example glass or transparent plastic.
  • the elongated hollow tube 18 is preferably of a liquid resistant material 6, such as stainless steel, for example AISI 316, although, of course, other materials are not excluded.
  • the inner diameter of the tube assembly 18 and extension 12 may be about 24 mm, while the total length of said assembly may be between about 200 and about 500 mm , being an estimated length as preferable of about 400 mm. It has been estimated that the distance between the axes of the ducts 1 and 2 can be between 10 and 40 c, preferably 24 cm.
  • Said assembly formed by the tube 18 and the extension 12 houses said aerometer 13 inside it, which is provided with a graduated elongated upper rod 20 and can move freely with a certain axial play through the assembly 12, 18.
  • the upper and lower ducts 2 can be removable from the elongated hollow tube by means of threaded joints 9, 10 or equivalent means.
  • the conduits 1, 2 can be introduced in the tank 24, and coupled to the wall 6 thereof, for example by means of threading 3, 4, and mounting the tube 18 through said threaded joints 9, 10.
  • the threading means 3, 4; threaded joints 9, 10; and, where appropriate, the thread 21 is preferably provided with sealing means, for example, gaskets or equivalent elements.
  • Plugs can be provided for closing the holes in the fermentation tank 24 when the density is not installed.
  • the parallel ducts 1, 2 comprise two shut-off valves 7, 8.
  • the vertical displacement of the aerometer 13 will be determined by the density of the liquid 6, in this case it came 6, under analysis, in direct application of the Archimedes principle.
  • the concrete, the height of the free level 17 of liquid 6 with respect to the rod 20 of the aerometer 13 is a direct function of the density or alcohol content of the liquid 6.
  • the rod 20 can be directly calibrated in units of density, for example, g / cm 3 , or well in percentage units of alcohol content.
  • the densimeter comprises automatic sensing means of the free level 17, constituted in this example of concrete embodiment, by an electronic altimetric reader 14, communicated by means of a wire 15 or wirelessly with a remote computer processing device of data.
  • the system is preferably provided with generating means. of a representative signal of said level.
  • the liquid 6 is in permanent communication with the cylindrical cavity of said assembly formed by the extension 12 and the tube 18 that houses the aerometer 13, so that the measurements can be carried out continuously both visually and automatically, being sent in the latter case, also continuously, to a computerized data processing system.
  • the densimeter In order to achieve perfect homogeneity with the rest of the contents of the tank 24, the densimeter must be purged periodically, preferably every 24 hours, closing the shut-off valves 7 and 8 and opening the purge valve 11.
  • the pressure in the upper part of the densimeter must be adjusted through said upper air valve 16 ,, insufflating air inside the assembly 12, 18 until the pressure gauge is equalized.
  • the altimeter reader 14 is adjusted by means of the height adjustment of the optical reader.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Food Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
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  • Pathology (AREA)
  • Medicinal Chemistry (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Devices For Use In Laboratory Experiments (AREA)

Abstract

The invention comprises a long hollow tube (18) which is connected to two parallel pipes (1, 2) which are essentially perpendicular to the axis of the hollow tube and which are intended to be inserted in each of the openings made in the wall (5) of the liquid container (6). The upper part of the hollow tube is coupled to a transparent tubular extension (12) which is in fluid communication with said hollow tube. The inventive device also comprises an aerometer (13) which is fitted with a long upper graduated rod (20) and which can move freely in the vertical direction but with a certain degree of axial clearance inside the assembly. The upper end of the device comprises an air valve (16) for supplying air to or extracting air from said device and an electronic altimetrical reader (14) which is connected to a remote data processing device. The inventive device is particularly suitable for measuring densities of wines in fermentation vats.

Description

D E S C R I P C I Ó N D E S C R I P C I Ó N

Densímetro para líquidosDensimeter for liquids

Sector técnico de la invenciónTechnical sector of the invention

La presente invención se refiere a un densímetro para líquidos, que encuentra particular aplicación para la medición de la densidad de vinos y licores contenidos en cubas de fermentación.The present invention relates to a densimeter for liquids, which finds particular application for measuring the density of wines and spirits contained in fermentation tanks.

Estado de la técnicaState of the art

Es sabido en el sector de la viticultura y vinicultura que, durante la fase de fermentación en cubas de los mostos de uva para su transformación en vino, que el gra- do alcohólico que adquirirá el producto final depende principalmente, aunque no de manera exclusiva, del contenido en azúcares de la uva, a costa del cual se realiza la fermentación. Este contenido final en alcohol, constituido por etanol o alcohol etílico, será uno de los fac- tores determinantes de la calidad y propiedades definitivas del vino, y por ello, es muy importante controlar su evolución durante la fase de fermentación, dado que durante su envejecimiento eventualmente en barricas no variará ostensiblemente. El contenido en alcohol de un vino o mosto en fase de fermentación, está en relación aproximadamente directa con la densidad del vino o mosto, por lo que el control de su densidad evolutiva es un buen sistema para el control del grado alcohólico o del contenido en azúcares. Para determinar la densidad de los mostos y vinos en su evolución a fin de controlar la destilación o grado de fermentación del mosto y determinar el momento en que acaba la fermentación, se emplean actualmente densímetros del tipo aerómetrico, que son unos dispositivos de medición de la densidad constituidos por un vastago graduado en grados Baumé, que se colocan en una probeta llena de una muestra del vino cuya densidad o grado alcohólico se desea determinar y sobre el cual flotan. El aerómetro se eleva más o menos sobre el nivel libre de vino en función de la menor o mayor densidad del líquido, en aplicación directa del principio de Arquímedes.It is known in the sector of viticulture and winemaking that, during the fermentation phase in vats of grape must for its transformation into wine, that the alcoholic grade that will acquire the final product depends mainly, although not exclusively, of the sugar content of the grapes, at the expense of which fermentation takes place. This final alcohol content, consisting of ethanol or ethyl alcohol, will be one of the determining factors of the quality and definitive properties of the wine, and therefore, it is very important to control its evolution during the fermentation phase, given that during its aging in barrels will not vary ostensibly. The alcohol content of a wine or must in the fermentation phase is approximately directly related to the density of the wine or must, so the control of its evolutionary density is a good system for the control of the alcohol content or the content of sugars To determine the density of musts and wines in their evolution in order to control the distillation or degree of fermentation of the must and determine when fermentation ends, densimeters are currently used of the aerometric type, which are density measurement devices constituted by a rod graduated in Baumé grades, which are placed in a test tube filled with a sample of the wine whose density or alcoholic strength is to be determined and on which they float. The aerometer rises more or less above the free level of wine depending on the lower or higher density of the liquid, in direct application of the Archimedes principle.

Sin embargo, estos densímetros o aerómetros conoci- dos adolecen del inconveniente de que requieren extraer de la cuba de fermentación una cierta cantidad de líquido, lo cual, además de ser engorroso, puede dar lugar a una medición no fiable ni repetitiva de la muestra, máxime si ésta extrae de una zona de la cuba que no sea re- presentativa.However, these known densimeters or aerometers suffer from the disadvantage that they require extracting a certain amount of liquid from the fermentation vessel, which, in addition to being cumbersome, can lead to an unreliable or repetitive measurement of the sample, especially if it is taken from an area of the tank that is not representative.

Los inventores han ideado un densímetro para la medición en continuo de la densidad del vino en una cuba de fermentación, que está por completo exenta del anterior inconveniente, y que mejora sensiblemente la funcionali- dad de los actuales aerómetros o densímetros de tipo Baumé.The inventors have devised a densimeter for the continuous measurement of the density of the wine in a fermentation vessel, which is completely exempt from the previous drawback, and which significantly improves the functionality of the current Baumé type aerometers or densimeters.

Explicación de la invenciónExplanation of the invention.

El objeto de la presente invención es un densí e- tro, de novedoso concepto y funcionalidad, que en su esencia se caracteriza por el hecho de que comprende un tubo hueco alargado comunicado con dos conductos paralelos esencialmente perpendiculares al eje del tubo hueco, destinados a ser introducidos en sendos orificios practi- cados a tal efecto en la pared del citado depósito contenedor del líquido cuya densidad se quiere medir, estando el tubo hueco acoplado, en su parte superior, a una prolongación tubular transparente de diámetro constante, en comunicación fluida con el citado tubo hueco. Según la invención, el densímetro comprende en su interior un aerómetro, dotado de un vastago superior alargado graduado y dispuesto libre de desplazamiento vertical pero con un cierto juego axial en el interior del conjunto. Gracias a ello, al poner en comunicación fluida el densímetro con el líquido en cuestión, llenándolo parcialmente del mismo, la altura de líquido con respecto al citado vastago es función directa de la densidad o contenido en alcohol del líquido. La prolongación tubular transparente puede estar acoplada al tubo hueco alargado mediante roscado o, alternativamente, puede estar unida al tubo hueco alargado sin solución de continuidad.The object of the present invention is a denser ether, of novel concept and functionality, which in essence is characterized by the fact that it comprises an elongated hollow tube communicated with two parallel ducts essentially perpendicular to the axis of the hollow tube, intended for be introduced in two holes made for this purpose in the wall of said liquid container reservoir whose density is to be measured, the hollow tube being coupled, in its upper part, to a transparent tubular extension of constant diameter, in fluid communication with The said hollow tube. According to In this invention, the densimeter comprises in its interior an aerometer, equipped with a graduated elongated upper rod and arranged free of vertical displacement but with a certain axial play inside the assembly. Thanks to this, by putting the densimeter in fluid communication with the liquid in question, filling it partially therewith, the height of the liquid with respect to said rod is a direct function of the density or alcohol content of the liquid. The transparent tubular extension can be coupled to the elongated hollow tube by threading or, alternatively, it can be attached to the elongated hollow tube without continuity solution.

Según otra característica de la presente invención, al menos uno de los dos conductos paralelos comprende una válvula de corte del paso de líquido.According to another feature of the present invention, at least one of the two parallel ducts comprises a shut-off valve of the liquid passage.

Se ha previsto que el tubo hueco alargado esté abierto por su parte inferior y comprenda, inmediatamente aguas arriba de la correspondiente abertura, una válvula de purga normalmente cerrada.It is provided that the elongated hollow tube is open at its bottom and comprises, immediately upstream of the corresponding opening, a normally closed purge valve.

Preferiblemente, el densímetro según la presente invención comprende, en su extremo superior, una válvula de aire, adaptada para la introducción o extracción de aire del interior de la prolongación tubular transparen- te.Preferably, the densimeter according to the present invention comprises, at its upper end, an air valve, adapted for the introduction or extraction of air from inside the transparent tubular extension.

Según otra característica del densímetro objeto de la presente invención, los conductos paralelos están dotados, en sus extremos destinados a quedar dentro del depósito en condiciones operativas, de sendos filtros, adaptados para impedir el paso de partículas sólidas al interior del densímetro.According to another characteristic of the densimeter object of the present invention, the parallel ducts are provided, at their ends intended to remain inside the tank under operating conditions, of two filters, adapted to prevent the passage of solid particles into the densimeter.

De acuerdo con una realización preferida, el densímetro comprende unos medios sensores automáticos del nivel libre que adquiere el líquido en el interior del den- símetro con respecto al vastago graduado del aerómetro, unos medios generadores de una señal representativa de dicho nivel, y unos medios transmisores de dicha señal a un dispositivo remoto de tratamiento informático de da- tos .According to a preferred embodiment, the densimeter comprises automatic free level sensing means that the liquid acquires inside the den a meter with respect to the graduated rod of the aerometer, means generating a signal representative of said level, and means transmitting said signal to a remote data processing device.

Preferiblemente, dichos medios sensores automáticos de nivel están constituidos por un lector altimétrico electrónico, comunicado mediante un hilo o inalámbricamente con dicho dispositivo remoto de tratamiento infor- mático de datos.Preferably, said automatic level sensing means are constituted by an electronic altimetric reader, communicated by means of a wire or wirelessly with said remote data processing device.

Breve descripción de los dibujosBrief description of the drawings

A continuación se hace la descripción de una forma preferida, aunque no limitativa, de realización del den- símetro para líquidos de la presente invención, para cuya mejor comprensión se acompaña de una hoja de dibujos, dados meramente a título de ejemplo no limitativo, cuya única figura es una representación esquemática, en alzado y en sección parcial, de un densímetro según la inven- ción.The description is made below of a preferred, but not limited to, embodiment of the liquid meter of the present invention, for which better understanding is accompanied by a sheet of drawings, given merely by way of non-limiting example, whose The only figure is a schematic representation, in elevation and in partial section, of a densimeter according to the invention.

Descripción de una realización preferidaDescription of a preferred embodiment

En la Fig. 1 puede verse que el densímetro para líquidos de la presente invención está constituido, como elementos principales, por un tubo hueco alargado 18, dos conductos paralelos 1 y 2, una prolongación tubular transparente 12 superior y un aerómetro interior 13, constituido por ejemplo un aerómetro de tipo Baumé.In Fig. 1 it can be seen that the liquid densimeter of the present invention is constituted, as main elements, by an elongated hollow tube 18, two parallel ducts 1 and 2, a transparent upper tubular extension 12 and an inner aerometer 13, constituted for example a Baumé type aerometer.

El densímetro para líquidos de la presente inven- ción está particularmente ideado para la determinación de la densidad y del grado alcohólico del vino 6 contenido en una cuba o depósito de fermentación 24. Por lo tanto, el ejemplo de realización de la presente invención se explica en relación con esta aplicación, si bien debe en- tenderse que no se limita a ella sino que el densímetro en cuestión puede aplicarse por igual a otros tipos de líquidos. Por ello, en lo que sigue se utilizan indistintamente las expresiones "vino 6" y "líquido 6" y "depósi- to 24" o "cuba de fermentación 24".The liquid densimeter of the present invention is particularly designed for the determination of the density and alcoholic strength of the wine 6 contained in a fermentation vessel or tank 24. Therefore, the embodiment of the present invention is explained in relation to this application, although you should it is not limited to it, but the densimeter in question can be applied equally to other types of liquids. Therefore, the terms "wine 6" and "liquid 6" and "tank 24" or "fermentation tank 24" are used interchangeably in the following.

El tubo hueco alargado 18 está abierto por su parte inferior y comprende, inmediatamente aguas arriba de la correspondiente abertura 19, una válvula de purga 11 normalmente cerrada. Ambos conductos paralelos 1, 2 son esencialmente perpendiculares al eje del tubo hueco 18 y están adaptados para colaborar con sendos y correspondientes orificios practicados a tal efecto en la pared 5 de la cuba de fermentación 24 de vino 6. En su posición operativa, los tubos 1, 2 quedan en posición horizontal.The elongated hollow tube 18 is open at its bottom and comprises, immediately upstream of the corresponding opening 19, a normally closed purge valve 11. Both parallel ducts 1, 2 are essentially perpendicular to the axis of the hollow tube 18 and are adapted to collaborate with each other and corresponding holes made for this purpose in the wall 5 of the wine fermentation tank 24 6. In their operative position, the tubes 1, 2 remain in horizontal position.

Los conductos paralelos 1, 2 cuentan en sus extremos destinados a quedar dentro de la cuba de fermentación 24, con sendos filtros agujerados 22, 23, que sirven para impedir la introducción de partículas sólidas, por ejem- pío la piel o las pepitas de la uva, en el interior del densímetro. Convenientemente, el diámetro de los orificios puede ser de unos 2 ratn.The parallel ducts 1, 2 have at their ends intended to be inside the fermentation vessel 24, with two perforated filters 22, 23, which serve to prevent the introduction of solid particles, for example the skin or the seeds of the grape, inside the densimeter. Conveniently, the diameter of the holes may be about 2 mouse.

El tubo hueco 18 recibe, en su parte superior, el acoplamiento de la citada prolongación tubular transpa- rente 12, cuyo diámetro es constante y con el cual está en comunicación fluida permanente.The hollow tube 18 receives, in its upper part, the coupling of said transparent tubular extension 12, whose diameter is constant and with which it is in permanent fluid communication.

En el ejemplo que se ilustra, la prolongación tubular transparente 12 está acoplada al tubo hueco alargado 18 mediante un roscado 21. Alternativamente, la prolonga- ción tubular transparente 12 puede estar unida al tubo hueco alargado 18 sin solución de continuidad, es decir formando una sola pieza con el mismo.In the example illustrated, the transparent tubular extension 12 is coupled to the elongated hollow tube 18 by means of a thread 21. Alternatively, the transparent tubular extension 12 can be attached to the elongated hollow tube 18 without continuity solution, that is to say forming a single piece with it.

La prolongación tubular transparente 12 comprende, en su extremo superior, una válvula de aire 16, adaptada para la introducción o extracción de aire por la parte superior de la prolongación tubular transparente 12.The transparent tubular extension 12 comprises, at its upper end, an air valve 16, adapted for the introduction or extraction of air from the top of the transparent tubular extension 12.

La prolongación tubular 12 puede ser de cualquier material transparente compatible con el líquido 6 cuya densidad se desea medir - en este caso vino -, por ejemplo de vidrio o plástico transparente. El tubo hueco alargado 18 es preferiblemente de un material resistente al líquido 6, tal como el acero inoxidable, por ejemplo AISI 316, si bien, naturalmente, no se excluyen otros a- feriales.The tubular extension 12 can be of any transparent material compatible with the liquid 6 whose density is to be measured - in this case it came - for example glass or transparent plastic. The elongated hollow tube 18 is preferably of a liquid resistant material 6, such as stainless steel, for example AISI 316, although, of course, other materials are not excluded.

Para una cuba de fermentación 24 estándar se ha pensado que el diámetro interior del conjunto de tubo 18 y prolongación 12 puede ser de unos 24 mm, mientras que la longitud total de dicho conjunto puede estar compren- dido, entre aproximadamente 200 y aproximadamente 500 mm, siendo una longitud estimada como preferible de unos 400 mm. Se ha estimado que la distancia entre los ejes de los conductos 1 y 2 puede estar comprendida entre 10 y 40 c , siendo preferiblemente 24 cm. El citado conjunto formado por el tubo 18 y la prolongación 12 aloja en su interior a dicho aerómetro 13, el cual está dotado de un vastago superior alargado graduado 20 y puede desplazarse libremente con un cierto juego axial por el conjunto 12, 18. Con todo ello, para instalar el densímetro de la invención en su posición operativa, no hay más que introducir los extremos de los conductos 1 y 2 en el interior de la cuba de fermentación 24, para poner en comunicación fluida el densímetro con el líquido 6 en cuestión, lle- nándose parcialmente del mismo. Para ello, los conductos superior 1 e inferior 2 pueden ser desmontables del tubo hueco alargado por medio de sendas uniones roscadas 9, 10 o medios equivalentes. Los conductos 1, 2 pueden introducirse en la cuba 24, y acoplarse a la pared 6 del mismo, por ejemplo por unos medios de roscado 3, 4, y montando el tubo 18 a través de las citadas uniones roscadas 9, 10.For a standard fermentation tank 24 it has been thought that the inner diameter of the tube assembly 18 and extension 12 may be about 24 mm, while the total length of said assembly may be between about 200 and about 500 mm , being an estimated length as preferable of about 400 mm. It has been estimated that the distance between the axes of the ducts 1 and 2 can be between 10 and 40 c, preferably 24 cm. Said assembly formed by the tube 18 and the extension 12 houses said aerometer 13 inside it, which is provided with a graduated elongated upper rod 20 and can move freely with a certain axial play through the assembly 12, 18. With all in order to install the densimeter of the invention in its operative position, it is only necessary to introduce the ends of the ducts 1 and 2 inside the fermentation tank 24, to put the densimeter in fluid communication with the liquid 6 in question , partially filling it. For this, the upper and lower ducts 2 can be removable from the elongated hollow tube by means of threaded joints 9, 10 or equivalent means. The conduits 1, 2 can be introduced in the tank 24, and coupled to the wall 6 thereof, for example by means of threading 3, 4, and mounting the tube 18 through said threaded joints 9, 10.

Los medios de roscado 3, 4; las uniones roscadas 9, 10; y, en su caso, el roscado 21 están preferiblemente dotados de medios de estanqueidad, por ejemplo juntas tó- ricas o elementos equivalentes .The threading means 3, 4; threaded joints 9, 10; and, where appropriate, the thread 21 is preferably provided with sealing means, for example, gaskets or equivalent elements.

Se pueden prever unos tapones para el cierre de los orificios de la cuba de fermentación 24 cuando el densí- metro no esté instalado.Plugs can be provided for closing the holes in the fermentation tank 24 when the density is not installed.

Para cerrar a voluntad el paso del líquido 6 a través del densímetro, los conductos paralelos 1, 2 comprenden sendas válvulas 7, 8 de corte.To close the passage of liquid 6 through the densimeter at will, the parallel ducts 1, 2 comprise two shut-off valves 7, 8.

Así las cosas, y de un modo en sí conocido, el des- plazamiento vertical del aerómetro 13 vendrá determinado por la densidad del líquido 6, en este caso vino 6, bajo análisis, en aplicación directa del principio de Arquíme- des. El concreto, la altura del nivel libre 17 de líquido 6 con respecto al vastago 20 del aerómetro 13 es función directa de la densidad o contenido en alcohol del líquido 6.Thus, and in a manner known per se, the vertical displacement of the aerometer 13 will be determined by the density of the liquid 6, in this case it came 6, under analysis, in direct application of the Archimedes principle. The concrete, the height of the free level 17 of liquid 6 with respect to the rod 20 of the aerometer 13 is a direct function of the density or alcohol content of the liquid 6.

Para la lectura de esta altura, y por lo tanto la determinación de la densidad o grado alcohólico del vino 6 o líquido en cuestión, el vastago 20 puede venir direc- tamente calibrado en unidades de densidad, por ejemplo, g/cm3, o bien en unidades porcentuales de contenido en alcohol .For the reading of this height, and therefore the determination of the alcoholic density or grade of the wine 6 or liquid in question, the rod 20 can be directly calibrated in units of density, for example, g / cm 3 , or well in percentage units of alcohol content.

En la Fig. 1 puede verse que el densímetro comprende unos medios sensores automáticos del nivel libre 17, constituidos en este ejemplo de realización concreto, por un lector altimétrico electrónico 14, comunicado mediante un hilo 15 o inalámbricamente con un dispositivo remoto de tratamiento informático de datos. Para ello, el sistema está preferiblemente dotado de unos medios generadores de una señal representativa de dicho nivel.In Fig. 1 it can be seen that the densimeter comprises automatic sensing means of the free level 17, constituted in this example of concrete embodiment, by an electronic altimetric reader 14, communicated by means of a wire 15 or wirelessly with a remote computer processing device of data. For this, the system is preferably provided with generating means. of a representative signal of said level.

El líquido 6 está en comunicación permanente con la cavidad cilindrica del citado conjunto formado por la prolongación 12 y el tubo 18 que aloja al aerómetro 13, por lo que las mediciones pueden realizarse en continuo tanto visualmente como automáticamente, siendo enviadas en este último caso, asimismo continuamente, a un sistema informático de proceso de datos.The liquid 6 is in permanent communication with the cylindrical cavity of said assembly formed by the extension 12 and the tube 18 that houses the aerometer 13, so that the measurements can be carried out continuously both visually and automatically, being sent in the latter case, also continuously, to a computerized data processing system.

De esta manera, en aplicaciones de cubas de fermen- tación 24 de mostos de uva, puede realizarse un seguimiento continuo del progreso de la fermentación del vino 6.In this way, in applications of fermentation vats 24 of grape must, continuous monitoring of the progress of the fermentation of wine 6 can be carried out.

Con objeto de conseguir una perfecta homogeneidad con el resto del contenido del depósito 24, el densímetro debe ser purgado periódicamente, de preferencia cada 24 horas, cerrando las válvulas de corte 7 y 8 y abriendo la válvula de purga 11.In order to achieve perfect homogeneity with the rest of the contents of the tank 24, the densimeter must be purged periodically, preferably every 24 hours, closing the shut-off valves 7 and 8 and opening the purge valve 11.

Al principio de la fermentación, debe ajustarse la presión en la parte superior del densímetro a través de la citada válvula de aire superior 16,, insuflando aire en el interior del conjunto 12, 18 hasta igualar la presión manométrica. Al estabilizarse ésta, se procede al ajuste del lector altimétrico 14 mediante el reglaje en altura del lector óptico. Descrita suficientemente la naturaleza de la presente invención, así como la manera de ponerla en práctica, se hace constar que cuanto no altere, cambie o modifique su principio fundamental puede quedar sometido a variaciones de detalle. At the beginning of the fermentation, the pressure in the upper part of the densimeter must be adjusted through said upper air valve 16 ,, insufflating air inside the assembly 12, 18 until the pressure gauge is equalized. When stabilized, the altimeter reader 14 is adjusted by means of the height adjustment of the optical reader. Describing sufficiently the nature of the present invention, as well as the way of putting it into practice, it is stated that whatever does not alter, change or modify its fundamental principle may be subject to variations in detail.

Claims

RE I V I N D I C A C I O N E S RE I V I N D I C A C I O N E S 1.- Densímetro para líquidos, en particular vinos y licores, contenidos en un depósito (24), que se caracteriza por el hecho de que comprende un tubo hueco alargado (18) comunicado con dos conductos (1, 2) paralelos esencialmente perpendiculares al eje del tubo hueco, destinados a ser introducidos en sendos orificios practicados a tal efecto en la pared (5) del citado depósito contenedor del líquido (6) cuya densidad se quiere medir, estando el tubo hueco acoplado, en su parte superior, a una prolongación tubular transparente (12) de diámetro constante, en comunicación fluida con el citado tubo hueco, y com- prendiendo el densímetro en su interior un aerómetro (13), dotado de un vastago superior alargado graduado (20) y dispuesto libre de desplazamiento vertical pero con un cierto juego axial en el interior del conjunto, de forma que, al poner en comunicación fluida el densímetro con el líquido en cuestión, llenándolo parcialmente del mismo, la altura de líquido con respecto al citado vastago es función directa de la densidad o contenido en alcohol del líquido.1.- Densimeter for liquids, in particular wines and spirits, contained in a tank (24), which is characterized by the fact that it comprises an elongated hollow tube (18) communicated with two parallel ducts (1, 2) essentially perpendicular to the shaft of the hollow tube, intended to be introduced in two holes made for this purpose in the wall (5) of said liquid container reservoir (6) whose density is to be measured, the hollow tube being coupled, in its upper part, to a transparent tubular extension (12) of constant diameter, in fluid communication with said hollow tube, and the densimeter comprising an aerometer (13), provided with a graduated elongated upper rod (20) and arranged free of vertical displacement but with a certain axial play inside the assembly, so that, by fluidly communicating the densimeter with the liquid in question, partially filling it, the height of liquid with res The aforementioned rod is a direct function of the density or alcohol content of the liquid. 2.- Densímetro según la reivindicación 1, que se caracteriza por el hecho de que la prolongación tubular transparente (12) está acoplada al tubo hueco alargado (18) mediante roscado.2. Densimeter according to claim 1, characterized in that the transparent tubular extension (12) is coupled to the elongated hollow tube (18) by means of threading. 3.- Densímetro según la reivindicación 1, que se caracteriza por el hecho de que la prolongación tubular transparente (12) está unida al tubo hueco alargado (18) sin solución de continuidad.3. Densimeter according to claim 1, characterized in that the transparent tubular extension (12) is attached to the elongated hollow tube (18) without continuity solution. 4.- Densímetro según cualquiera de las reivindicaciones anteriores, que se caracteriza por el hecho de que al menos uno de los dos conductos paralelos (1, 2) com- prende una válvula (7, 8) de corte del paso de líquido (6) .4. Densimeter according to any of the preceding claims, characterized in that at least one of the two parallel ducts (1, 2) comprises turn on a valve (7, 8) for cutting the liquid passage (6). 5.- Densímetro según cualquiera de las reivindicaciones anteriores, que se caracteriza por el hecho de que el tubo hueco alargado (18) está abierto por su parte inferior y comprende, inmediatamente aguas arriba de la correspondiente abertura (19), una válvula de purga (11) normalmente cerrada.5. Densimeter according to any of the preceding claims, characterized in that the elongated hollow tube (18) is open at its bottom and comprises, immediately upstream of the corresponding opening (19), a purge valve (11) normally closed. 6.- Densímetro según cualquiera de las reivindícaciones anteriores, que se caracteriza por el hecho de que comprende, en su extremo superior, una válvula de aire (16) , adaptada para la introducción o extracción de aire del interior de la prolongación tubular transparente (12) . 1 . - Densímetro según cualquiera de las reivindicaciones anteriores, que se caracteriza por el hecho de que los conductos paralelos (1, 2) están dotados, en sus extremos destinados a quedar dentro del depósito (24) en condiciones operativas, de sendos filtros (22, 23), adap- tados para impedir el paso de partículas sólidas al interior del densímetro.6. Densimeter according to any of the preceding claims, characterized in that it comprises, at its upper end, an air valve (16), adapted for the introduction or extraction of air from inside the transparent tubular extension ( 12). one . - Densimeter according to any of the preceding claims, characterized in that the parallel ducts (1, 2) are provided, at their ends, intended to remain inside the tank (24) under operating conditions, of two filters (22, 23), adapted to prevent the passage of solid particles into the densimeter. 8.- Densímetro según cualquiera de las reivindicaciones anteriores, que se caracteriza por el hecho de que comprende unos medios sensores automáticos del nivel li- bre (17) que adquiere el líquido (6) en el interior del densímetro con respecto al vastago graduado (20) del aerómetro (13) , unos medios generadores de una señal representativa de dicho nivel, y unos medios transmisores de dicha señal a un dispositivo remoto de tratamiento infor- mático de datos.8. Densimeter according to any of the preceding claims, characterized in that it comprises automatic sensing means of the free level (17) that the liquid (6) acquires inside the densimeter with respect to the graduated rod ( 20) of the aerometer (13), means generating a signal representative of said level, and means transmitting said signal to a remote data processing device. 9- Densímetro según la reivindicación 8, que se caracteriza por el hecho de que dichos medios sensores automáticos de nivel están constituidos por un lector altimétrico electrónico (14), comunicado mediante un hilo (15) o inalámbricamente con dicho dispositivo remoto de tratamiento informático de datos. 9- Densimeter according to claim 8, characterized in that said automatic level sensing means are constituted by an electronic altimetric reader (14), communicated by means of a wire (15) or wirelessly with said remote data processing device.
PCT/ES2002/000056 2001-02-09 2002-02-08 Liquid densimeter Ceased WO2002065098A1 (en)

Applications Claiming Priority (2)

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ES200100293A ES2171150B1 (en) 2001-02-09 2001-02-09 DENSIMETER FOR LIQUIDS
ESP200100293 2001-02-09

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2002183A (en) * 1930-02-06 1935-05-21 Albert G Mccaleb Combination thermometer and hydrometer
US2182172A (en) * 1937-03-29 1939-12-05 Schutte & Koerting Company Specific gravity indicator
US2713258A (en) * 1949-09-15 1955-07-19 Walton Charles Emmet Hydrometer or beverage testers
US3126745A (en) * 1958-11-24 1964-03-31 Lotke
US3269184A (en) * 1964-04-24 1966-08-30 Lummus Co Apparatus for measuring fluid characteristics
US3754446A (en) * 1970-06-03 1973-08-28 Lummus Co Apparatus for measuring fluid characteristics
US4077265A (en) * 1976-02-20 1978-03-07 Harvey Alec Strain Alcohol testers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2002183A (en) * 1930-02-06 1935-05-21 Albert G Mccaleb Combination thermometer and hydrometer
US2182172A (en) * 1937-03-29 1939-12-05 Schutte & Koerting Company Specific gravity indicator
US2713258A (en) * 1949-09-15 1955-07-19 Walton Charles Emmet Hydrometer or beverage testers
US3126745A (en) * 1958-11-24 1964-03-31 Lotke
US3269184A (en) * 1964-04-24 1966-08-30 Lummus Co Apparatus for measuring fluid characteristics
US3754446A (en) * 1970-06-03 1973-08-28 Lummus Co Apparatus for measuring fluid characteristics
US4077265A (en) * 1976-02-20 1978-03-07 Harvey Alec Strain Alcohol testers

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ES2171150B1 (en) 2003-12-16

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