ES2390551B1 - MEASUREMENT DEVICE FOR THE CONCENTRATION OF ANTI-FREEZER - Google Patents
MEASUREMENT DEVICE FOR THE CONCENTRATION OF ANTI-FREEZER Download PDFInfo
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- ES2390551B1 ES2390551B1 ES201031113A ES201031113A ES2390551B1 ES 2390551 B1 ES2390551 B1 ES 2390551B1 ES 201031113 A ES201031113 A ES 201031113A ES 201031113 A ES201031113 A ES 201031113A ES 2390551 B1 ES2390551 B1 ES 2390551B1
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- concentration
- antifreeze
- measuring device
- solution
- electrical conductivity
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- 238000005259 measurement Methods 0.000 title claims description 3
- 239000000243 solution Substances 0.000 claims abstract description 30
- 230000002528 anti-freeze Effects 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 239000003507 refrigerant Substances 0.000 claims abstract description 13
- 239000007864 aqueous solution Substances 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 235000013405 beer Nutrition 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 206010013496 Disturbance in attention Diseases 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 238000011005 laboratory method Methods 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
Dispositivo de medida de la concentración de anticongelante.#Basado en el principio de conductividad eléctrica de soluciones acuosas, permite conocer la concentración exacta de anticongelante presente en una disolución refrigerante, incluso para disoluciones inferiores a 0ºC. Dicho dispositivo de medida (1) comprende un sensor de temperatura (2); un sensor de conductividad (3) eléctrica, que emplea el valor obtenido por el sensor de temperatura (2) para determinar la conductividad eléctrica de dicha disolución, un microcontrolador (4) adaptado para la determinación de la concentración de anticongelante a partir de los valores obtenidos por el sensor de temperatura (2) y sensor de conductividad (3); una interfaz de usuario (5), dotado preferentemente de teclado (6) y pantalla (7), mediante la cual es posible calibrar el dispositivo de medida (1) para diferentes disoluciones refrigerantes, y conocer distintos parámetros de la disolución; y una fuente de alimentación (8) que proporciona energía eléctrica a los componentes arriba citados del dispositivo de medida (1).Device for measuring the concentration of antifreeze. # Based on the principle of electrical conductivity of aqueous solutions, it allows to know the exact concentration of antifreeze present in a cooling solution, even for solutions below 0 ° C. Said measuring device (1) comprises a temperature sensor (2); an electrical conductivity sensor (3), which uses the value obtained by the temperature sensor (2) to determine the electrical conductivity of said solution, a microcontroller (4) adapted for the determination of the concentration of antifreeze from the values obtained by the temperature sensor (2) and conductivity sensor (3); a user interface (5), preferably provided with a keyboard (6) and screen (7), by means of which it is possible to calibrate the measuring device (1) for different refrigerant solutions, and to know different parameters of the solution; and a power supply (8) that provides electrical power to the above-mentioned components of the measuring device (1).
Description
la presente invención pertenece al campo del análisis de materiales para la determinación de sus propiedades químicas o físicas, y más concretamente al análisis de IIquidos refrigerantes y anticongelantes. The present invention belongs to the field of material analysis for the determination of its chemical or physical properties, and more specifically to the analysis of refrigerant and antifreeze liquids.
El objeto principal de la presente invención es un dispositivo de medida The main object of the present invention is a measuring device
que permite determinar la temperatura y la concentración de anticongelante which allows to determine the temperature and concentration of antifreeze
presente en una disolución, incluso para disoluciones por debajo de O oC, avisando mediante una señal de alarma en caso de que dicho anticongelante se encuentre por debajo de un determinado valor. present in a solution, even for solutions below O oC, warning by means of an alarm signal in case said antifreeze is below a certain value.
Actualmente, para conocer las características y calidad de un fluido de refrigeración se utiliza, o bien un pesa-glicol, o bien un dispositivo refractómetro, mediante los cuales es posible determinar la temperatura de protección, a partir de la cual el fluído pierde sus propiedades refrigerantes y cambia a fase sólida. Para dosificar los líquidos anticongelantes, las técnicas utilizadas son esencialmente métodos de laboratorio tales como la cromatografia líquida o la electroforesis, difícilmente transportables al lugar de la explotación, y en ningún caso adaptados al hombre de campo, por ejemplo personas encargadas del buen funcionamiento de los motores industriales o de los motores de un parque de automóviles, camiones o autobuses. Currently, to know the characteristics and quality of a cooling fluid, either a glycol-weight, or a refractometer device is used, by means of which it is possible to determine the protection temperature, from which the fluid loses its properties refrigerants and changes to solid phase. To dose the antifreeze liquids, the techniques used are essentially laboratory methods such as liquid chromatography or electrophoresis, difficult to transport to the place of exploitation, and in no case adapted to the man in the field, for example people responsible for the proper functioning of the industrial engines or engines of a car, truck or bus park.
conocidas de antemano por el consumidor ya que las consecuencias de utilizar un liquido sin las condiciones adecuadas, pueden ser de gran importancia para el circuito refrigerador. known in advance by the consumer since the consequences of using a liquid without the right conditions, can be of great importance for the cooling circuit.
Es evidente que actualmente existen en el mercado densimetros y otros aparatos de precisión adaptados para conocer la densidad o grado de concentración de un liquido cualquiera, pero estos aparatos de medición resultan ser muy delicados y costosos. Dichos dispositivos están basados en el principio de "refracción de la luz" en soluciones acuosas, por el cual, cuando aumenta la densidad de un fluido (por ejemplo: cuando se disuelve azúcar en agua), el indice de refracción aumenta proporcionalmente. It is evident that densimeters and other precision devices adapted to know the density or degree of concentration of any liquid currently exist on the market, but these measuring devices turn out to be very delicate and expensive. Such devices are based on the principle of "light refraction" in aqueous solutions, whereby, when the density of a fluid increases (for example: when sugar is dissolved in water), the index of refraction increases proportionally.
El problema técnico aqui planteado es que los instrumentos y dispositivos anteriormente citados, basados en fenómenos de refracción, no permiten conocer en tiempo real la concentración exacta de anticongelante presente en una disolución que se encuentre a una temperatura inferior a O·C, con lo cual no es posible controlar de forma eficiente y precisa procesos de refrigeración desarrollados por debajo de dicha temperatura. The technical problem raised here is that the instruments and devices mentioned above, based on refraction phenomena, do not allow to know in real time the exact concentration of antifreeze present in a solution that is at a temperature below O · C, whereby It is not possible to efficiently and accurately control cooling processes developed below that temperature.
Mediante la presente invención se resuelve el problema técnico anteriormente planteado proporcionando un dispositivo de medida de la concentración de anticongelante existente en una disolución refrigerante, la cual se encuentra a una temperatura inferior a QOC , avisando en caso de que dicha disolución pierda sus caracteristicas ideales de refrigeración, al encontrarse el anticongela nte por debajo de un determinado valor. By means of the present invention, the aforementioned technical problem is solved by providing a device for measuring the concentration of antifreeze in a refrigerant solution, which is at a temperature below QOC, warning if said solution loses its ideal characteristics of refrigeration, when antifreeze is found below a certain value.
soluciones acuosas, por el cual, en todo medio acuoso existe una relación aqueous solutions, whereby, in every aqueous medium there is a relationship
directa entre su temperatura y su conductividad eléctrica, por tanto a mayor temperatura de la disolución refrigerante mayor es su conductividad. A su vez, la conductividad eléctrica es inversamente proporcional a su porcentaje en la disolución, esto es, cuanto mayor es la conductividad de una disolución refrigerante, menor es su concentración de anticongelante. Direct between its temperature and its electrical conductivity, therefore the higher the temperature of the refrigerant solution, the greater its conductivity. In turn, the electrical conductivity is inversely proportional to its percentage in the solution, that is, the higher the conductivity of a cooling solution, the lower its concentration of antifreeze.
Empleando este principio, el dispositivo de medida objeto de invención es Using this principle, the measuring device object of the invention is
capaz de realizar mediciones de disoluciones refrigerantes con temperaturas able to perform measurements of cooling solutions with temperatures
negativas, lo cual permite optimizar considerablemente los procesos de control de refrigeración de numerosas aplicaciones industriales, como por ejemplo en la negative, which allows to optimize considerably the refrigeration control processes of numerous industrial applications, such as in the
industria cervecera, en los refrigeradores comerciales de cerveza de barril. beer industry, in commercial beer coolers on tap.
Dicho dispositivo de medida, el cual puede ser portátil o instalable, comprende al menos: un sensor de temperatura , preferentemente un termistor NTC, adaptado para medir la temperatura exacta de una disolución refrigerante; un sensor de conductividad eléctrica; un microcontrolador vinculado al sensor de temperatura y al sensor de conductividad eléctrica, adaptado para la gestión y procesamiento de la información obtenida por dichos sensores, y dotado del software necesario para determinar la concentración de anticongelante presente en la disolución refrigerante; una interfaz de usuario, que preferentemente comprende un teclado y una pantalla, mediante la cual es posible calibrar el dispositivo de medida objeto de invención para diferentes disoluciones refrigerantes, y a través de la cual un usuario puede conocer distintos parámetros de la disolución refrigerante; y una fuente de alimentación conectada a la red eléctrica general, que proporciona energía al resto de componentes anteriormente citados. Said measuring device, which can be portable or installable, comprises at least: a temperature sensor, preferably an NTC thermistor, adapted to measure the exact temperature of a cooling solution; an electrical conductivity sensor; a microcontroller linked to the temperature sensor and the electrical conductivity sensor, adapted for the management and processing of the information obtained by said sensors, and equipped with the necessary software to determine the concentration of antifreeze present in the refrigerant solution; a user interface, which preferably comprises a keyboard and a screen, by means of which it is possible to calibrate the measuring device object of the invention for different refrigerant solutions, and through which a user can know different parameters of the refrigerant solution; and a power supply connected to the general power grid, which provides power to the other components mentioned above.
Para los casos en que la disolución refrigerante pierda sus propiedades For cases where the cooling solution loses its properties
refrigerantes y el anticongelante disminuya por debajo de un determi nado coolants and antifreeze decrease below a certain
umbral, el cual ha sido previamente establecido mediante la interfaz de threshold, which has been previously established through the interface of
5 usuario, se ha previsto que el dispositivo de medida objeto de invención disponga de unos medios de alarma, que pueden ser luminosos y/o acústicos, mediante los cuales el usuario tiene conocimiento en tiempo real del estado 5 user, it is provided that the measuring device object of the invention has alarm means, which can be luminous and / or acoustic, by means of which the user has real-time knowledge of the status
de dicha disolución refrigerante. of said cooling solution.
10 Por otra parte, se ha previsto que el microcontrolador disponga preferentemente de un sistema de detección de hielo, para aquellas 10 On the other hand, it is envisaged that the microcontroller preferably has an ice detection system for those
situaciones en las que la disolución refrigerante supere la temperatura de situations in which the cooling solution exceeds the temperature of
cambio de fase y se solidifique , lo cual si se deja pasar podría tener fatales phase change and solidify, which if left pass could be fatal
Para complementar la descripción que se está realizando y con objeto 20 de ayudar a una mejor comprensión de las características de la invención, de To complement the description being made and in order to help a better understanding of the features of the invention,
acuerdo con un ejemplo preferente de realización práctica de la misma, se according to a preferred example of practical realization thereof,
acompaña como parte integrante de dicha descripción, un juego de dibujos en accompanies as an integral part of this description, a set of drawings in
donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente: where for illustrative and non-limiting purposes, the following has been represented:
25 Figura 1.-Muestra una vista esquemática de los elementos que componen el dispositivo de medida objeto de invención. Figure 1.- Shows a schematic view of the elements that make up the measuring device object of the invention.
de la figura 1, el dispositivo de medida (1) de la concentración de of figure 1, the measuring device (1) of the concentration of
5 anticongelante presente en una disolución refrigerante comprende: Antifreeze present in a refrigerant solution comprises:
- --
- un sensor de temperatura (2) del tipo termistor NTC, el cual presenta a temperature sensor (2) of the NTC thermistor type, which has
un tamaño reducido y proporciona medidas rápidas de temperatura con una alta sensibilidad para un rango de funcionamiento comprendido entre a small size and provides rapid temperature measurements with high sensitivity for a range of operation between
10 aproximadamente -1 OO' C y 450 ' C, 10 approximately -1 OO 'C and 450' C,
- --
- un sensor de conductividad (3) eléctrica, an electrical conductivity sensor (3),
15 sensor de conductividad (3) eléctrica, dotado del software necesario para la 15 electrical conductivity sensor (3), equipped with the necessary software for the
respecto de la disolución refrigerante, combinando los datos aportados por ambos sensores (2 , 3), regarding the cooling solution, combining the data provided by both sensors (2, 3),
20 -una interfaz de usuario (5) vinculada al microcontrolador (4) , dotado de un teclado (6) y una pantalla (7), mediante la cual es posible calibrar el dispositivo de medida (1) para diferentes disoluciones refrigerantes, ya través de la cual un usuario puede conocer distintos parámetros de la disolución, y 20 -a user interface (5) linked to the microcontroller (4), equipped with a keyboard (6) and a screen (7), by means of which it is possible to calibrate the measuring device (1) for different cooling solutions, and through of which a user can know different parameters of the dissolution, and
25 -una fuente de alimentación (8) que proporciona energía eléctrica al resto de componentes del dispositivo de medida (1) objeto de invención. 25 -a power source (8) that provides electrical power to the other components of the measuring device (1) object of the invention.
Claims (4)
- --
- un sensor de temperatura (2) adaptado para medir la temperatura de a temperature sensor (2) adapted to measure the temperature of
- --
- un sensor de conductividad (3) eléctrica, an electrical conductivity sensor (3),
- --
- un microcontrolador (4) vinculado al sensor de temperatura (2) y al a microcontroller (4) linked to the temperature sensor (2) and the
- --
- una interfaz de usuario (5) vinculada al microcontrolador (4), mediante 20 la cual es posible calibrar el dispositivo de medida (1) para diferentes a user interface (5) linked to the microcontroller (4), by means of which it is possible to calibrate the measuring device (1) for different
- --
- una fuente de alimentación (8) adaptada para proporcionar energía 25 eléctrica al resto de componentes del dispositivo de medida (1). a power supply (8) adapted to provide electrical power to the other components of the measuring device (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201031113A ES2390551B1 (en) | 2010-07-20 | 2010-07-20 | MEASUREMENT DEVICE FOR THE CONCENTRATION OF ANTI-FREEZER |
| PCT/ES2011/070532 WO2012010736A1 (en) | 2010-07-20 | 2011-07-19 | Antifreeze concentration conductivity measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201031113A ES2390551B1 (en) | 2010-07-20 | 2010-07-20 | MEASUREMENT DEVICE FOR THE CONCENTRATION OF ANTI-FREEZER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2390551A1 ES2390551A1 (en) | 2012-11-14 |
| ES2390551B1 true ES2390551B1 (en) | 2013-10-02 |
Family
ID=44764177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201031113A Active ES2390551B1 (en) | 2010-07-20 | 2010-07-20 | MEASUREMENT DEVICE FOR THE CONCENTRATION OF ANTI-FREEZER |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES2390551B1 (en) |
| WO (1) | WO2012010736A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9351431B2 (en) | 2012-10-11 | 2016-05-24 | International Business Machines Corporation | Cooling system with automated seasonal freeze protection |
| CN108153208B (en) * | 2018-02-24 | 2024-05-14 | 广州晓网电子科技有限公司 | Fire control pipeline monitoring system that prevents frostbite |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19649366C2 (en) * | 1996-11-28 | 1999-05-27 | Siemens Automotive Sa | Microsensor for liquid analysis, especially of alcohol-gasoline mixtures |
| JP3118211B2 (en) * | 1997-08-27 | 2000-12-18 | 核燃料サイクル開発機構 | Method for measuring sodium concentration in alcohol |
| US6590402B2 (en) * | 2001-10-02 | 2003-07-08 | Delphi Technologies, Inc. | Engine oil contamination sensor |
| DE10152777A1 (en) * | 2001-10-29 | 2003-05-15 | Hydac Electronic Gmbh | Device and method for determining the quality of a medium, in particular a lubricant and / or coolant |
| SE523531C2 (en) * | 2001-12-21 | 2004-04-27 | Scania Cv Ab | Method and monitoring device for monitoring a corrosion protection capacity for a coolant in a cooling system |
-
2010
- 2010-07-20 ES ES201031113A patent/ES2390551B1/en active Active
-
2011
- 2011-07-19 WO PCT/ES2011/070532 patent/WO2012010736A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012010736A4 (en) | 2012-04-12 |
| WO2012010736A1 (en) | 2012-01-26 |
| ES2390551A1 (en) | 2012-11-14 |
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