ES2372085A1 - Portable thermal bath - Google Patents
Portable thermal bath Download PDFInfo
- Publication number
- ES2372085A1 ES2372085A1 ES201030780A ES201030780A ES2372085A1 ES 2372085 A1 ES2372085 A1 ES 2372085A1 ES 201030780 A ES201030780 A ES 201030780A ES 201030780 A ES201030780 A ES 201030780A ES 2372085 A1 ES2372085 A1 ES 2372085A1
- Authority
- ES
- Spain
- Prior art keywords
- channel
- liquid
- thermal bath
- portable thermal
- heating
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 238000009533 lab test Methods 0.000 claims abstract description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 238000002474 experimental method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000523 sample Substances 0.000 description 4
- 238000007654 immersion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001418 larval effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- 230000000384 rearing effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
-
- 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
- F24H1/06—Portable or mobile, e.g. collapsible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0832—Geometry, shape and general structure cylindrical, tube shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/18—Means for temperature control
- B01L2300/1805—Conductive heating, heat from thermostatted solids is conducted to receptacles, e.g. heating plates, blocks
- B01L2300/1827—Conductive heating, heat from thermostatted solids is conducted to receptacles, e.g. heating plates, blocks using resistive heater
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
- B01L7/04—Heat insulating devices, e.g. jackets for flasks
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices For Medical Bathing And Washing (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Central Heating Systems (AREA)
Abstract
Description
Baño térmico portátil.Portable thermal bath
La presente invención pertenece al campo de los dispositivos calentadores de líquidos con medios para producir calor, y más concretamente a calentadores de agua portátiles.The present invention belongs to the field of liquid heating devices with means to produce heat, and more specifically to portable water heaters.
El objeto principal de la presente invención es un baño térmico portátil que permite el calentamiento uniforme de un líquido, manteniendo su temperatura constante a lo largo de toda su extensión de forma indefinida en el tiempo, y permaneciendo dicho líquido en condiciones estáticas, sin turbulencias ni movimientos del caudal de líquido.The main object of the present invention is a portable thermal bath that allows uniform heating of a liquid, keeping its temperature constant throughout its entire extension indefinitely over time, and remaining said liquid in static conditions, without turbulence or movement of the liquid flow.
Actualmente son conocidos en el estado del arte aparatos calentadores de líquidos, principalmente agua, de especial aplicación en laboratorios de investigación y análisis, fábricas de productos químicos o farmacéuticos, clínicas, hospitales, etc. Dichos calentadores de agua existentes actualmente en el mercado tienen entre otros los siguientes inconvenientes:They are currently known in the state of the art liquid heating devices, mainly water, especially application in research and analysis laboratories, factories Chemical or pharmaceutical products, clinics, hospitals, etc. These water heaters currently available in the market they have among others the following disadvantages:
- Calientan el agua con un elemento calefactor y la recirculan con una bomba con el fin de que la temperatura sea homogénea, esto implica movimiento del fluido, lo cual no es apto para este tipo de experimentos.- They heat the water with a heating element and they recirculate it with a pump so that the temperature is homogeneous, this implies movement of the fluid, which is not suitable For this kind of experiments.
- Emplean termostatos, cuyo funcionamiento se basa en un continuo corte y rearme de sus dispositivos para volver a alcanzar la temperatura requerida en el líquido, lo que provoca unos cambios importantes de temperatura, debido principalmente a la histéresis propia de cualquier termostato.- They use thermostats, whose operation is based on a continuous cut and reset of their devices to return to reach the required temperature in the liquid, which causes about major temperature changes, mainly due to the hysteresis typical of any thermostat.
- El uso de termostatos implica la lectura, mediante una sonda, de la temperatura del agua. En función de la ubicación de la sonda (coordenadas verticales - horizontales), se obtiene una lectura de temperatura, que puede coincidir o no, con la que queremos conseguir. De otra forma, si la sonda se encuentra inmersa en el fondo del canal, el termostato se regirá por la temperatura en el fondo del canal y no por la temperatura en la zona del canal donde de forma habitual se llevan a cabo los experimentos, es decir, en la superficie.- The use of thermostats involves reading, by means of a probe, of the water temperature. In function of the probe location (vertical - horizontal coordinates), it you get a temperature reading, which can match or not, with the What we want to achieve Otherwise, if the probe is found immersed in the bottom of the channel, the thermostat will be governed by the temperature at the bottom of the channel and not by the temperature in the area of the channel where experiments are usually carried out, that is, on the surface.
- Dichos termostatos presentan generalmente una bomba para la recirculación del líquido, lo que provoca turbulencias y movimientos del caudal indeseables.- These thermostats generally have a liquid recirculation pump, which causes turbulence and undesirable flow movements.
- Uso de resistencias eléctricas de inmersión situadas dentro del líquido a calentar, las cuales producen también unas variaciones de temperatura del líquido muy grandes entre diferentes partes del recipiente, que dependiendo de la longitud, volumen-superficie del canal-líquido y potencia del elemento calefactor, pueden ser del orden de 4 y 5ºC.- Use of immersion electric resistors located inside the liquid to be heated, which also produce very large liquid temperature variations between different parts of the container, which depending on the length, volume-surface of the channel-liquid and heating element power, can be of the order of 4 and 5 ° C.
- Presentan grandes dimensiones, ocupando un volumen considerable e impidiendo su transporte y manejo en distintos laboratorios o lugares.- They have large dimensions, occupying a considerable volume and preventing its transport and handling in Different laboratories or places.
- Su instalación resulta, por lo dicho en el punto anterior, bastante compleja y dificultosa.- Its installation results, as stated in the Previous point, quite complex and difficult.
Mediante la presente invención se resuelven los inconvenientes anteriormente citados proporcionando un baño térmico portátil de reducidas dimensiones y peso ligero, de especial aplicación en experimentos de laboratorio y centros de investigación, mediante el cual es posible calentar un líquido de manera uniforme a lo largo de toda su extensión, con unas variaciones de temperatura por debajo de los \pm 0.5ºC, permaneciendo dicho líquido estático y quieto, sin movimientos o turbulencias innecesarios.The present invention resolves the drawbacks mentioned above providing a thermal bath Small and lightweight notebook, especially application in laboratory experiments and centers research, whereby it is possible to heat a liquid from uniform way along its entire length, with some temperature variations below ± 0.5 ° C, said static liquid remaining still, without movements or unnecessary turbulence.
El baño térmico portátil, objeto de la presente invención comprende:The portable thermal bath, object of the present invention comprises:
- --
- un canal, preferentemente de configuración alargada en forma de "U", en cuyo interior se encuentra un volumen de líquido que se quiere calentar,a channel, preferably elongated configuration in the form of "U", inside which is a volume of liquid that wants to warm up
- --
- un cable calefactor resistivo, situado en la cara exterior del canal, y que se encuentra conectado a una fuente de alimentación externa que le aporta energía eléctrica produciendo su calentamiento y permitiendo regular la temperatura del líquido, ya resistive heating cable, located on the outer face of the channel, and which is connected to an external power source that it provides electric energy producing its heating and allowing to regulate the temperature of the liquid, and
- --
- una capa aislante, preferentemente de poliuretano, dispuesta inferiormente a continuación del cable calefactor, envolviendo la superficie exterior del canal, adaptada para hacer menos influenciable la temperatura ambiente exterior, así como evitar el escape de calor, de forma que dicho calor sea transmitido íntegramente hacia el canal, calentando éste el líquido contenido en su interior.a insulating layer, preferably polyurethane, arranged below the heating cable, wrapping the outer surface of the canal, adapted to do less influenceable outside ambient temperature, as well as avoid heat escape, so that said heat is transmitted entirely towards the channel, heating it the liquid contained in its interior.
\newpage\ newpage
Tal y como se ha mencionado anteriormente la fuente de alimentación está adaptada para la regulación manual de la temperatura del líquido, sin más que modificar los valores de tensión e intensidad transmitidos al cable calefactor.As mentioned above the power supply is adapted for manual regulation of the liquid temperature, without changing the values of voltage and intensity transmitted to the heating cable.
La eliminación del empleo de termostatos elimina, por tanto, el uso de sondas. Una vez medida la temperatura en la ubicación preferida, empleando un termómetro adicional, es posible obtener esta temperatura deseada, constante en el tiempo, mediante la fuente de alimentación regulable.The elimination of the use of thermostats eliminates, therefore, the use of probes. Once the temperature is measured in the preferred location, using an additional thermometer, it is possible to obtain this desired temperature, constant over time, through the adjustable power supply.
Preferentemente el canal es de metacrilato, el cual proporciona unas propiedades óptimas de transparencia, resistencia y tolerancia a un amplio rango de temperaturas, aproximadamente de entre -90ºC y 85ºC, pudiendo ser de cualquier otro material que soporte las temperaturas a las que se vaya a trabajar en cada experimento.Preferably the channel is methacrylate, the which provides optimal transparency properties, resistance and tolerance to a wide range of temperatures, approximately between -90ºC and 85ºC, being able to be of any other material that supports the temperatures at which it goes to Work on each experiment.
Se ha previsto que el canal pueda presentar una forma y dimensiones variables en función de la aplicación a que vaya estar destinado.It is planned that the channel can present a variable shape and dimensions depending on the application you go to be destined
Por tanto, mediante el baño térmico portátil aquí descrito se consigue mantener un volumen de líquido estático a temperatura uniforme y constante en toda su extensión, con una variación inferior a los \pm 0.5ºC, evitando el empleo de termostatos, bombas y resistencias de inmersión que producen variaciones notables de temperaturas, haciéndolos inútiles en un gran número de experimentos e investigaciones científicas en las que se necesita mantener un líquido a una determinada temperatura, con muy reducidas variaciones.Therefore, using the portable thermal bath described here it is possible to maintain a volume of static liquid at uniform and constant temperature throughout its length, with a variation below ± 0.5ºC, avoiding the use of thermostats, pumps and immersion resistors that produce notable variations in temperatures, rendering them useless in a large number of experiments and scientific research in which it is necessary to keep a liquid at a certain temperature, with Very small variations.
Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características de la invención, de acuerdo con un ejemplo preferente de realización práctica de la misma, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to an example preferred practical implementation of it, is accompanied as integral part of that description, a set of drawings where with an illustrative and non-limiting nature, what has been represented next:
Figura 1.- Muestra una vista en perspectiva general del baño térmico portátil objeto de invención.Figure 1.- Shows a perspective view General portable thermal bath object of invention.
Figura 2.- Muestra una vista en planta del baño térmico portátil.Figure 2.- Shows a plan view of the bathroom portable thermal
Figura 3.- Muestra una vista lateral seccionada del baño térmico portátil donde se aprecia el cable calefactor situado entre el canal y la capa aislante.Figure 3.- Shows a sectioned side view of the portable thermal bath where the heating cable can be seen located between the channel and the insulating layer.
De acuerdo con una realización preferente mostrada en las figuras 1 a 3, el baño térmico portátil (1) comprende:According to a preferred embodiment shown in figures 1 to 3, the portable thermal bath (1) understands:
- --
- un canal (2) de metacrilato de 125 cm. de longitud y 3.5 cm. de altura, de configuración alargada y en forma de "U", en cuyo interior se encuentra un volumen de líquido (10) a calentar,a 125 cm methacrylate channel (2). in length and 3.5 cm. Tall, of elongated configuration and in the form of "U", in whose interior a volume of liquid (10) to be heated is found,
- --
- un cable calefactor (3) resistivo, mostrado en las figuras 2 y 3, situado en la cara exterior del canal (2), uniformemente distribuido a lo largo y ancho de su superficie, a modo de "suelo radiante", conectado a una fuente de alimentación (11) externa que le aporta energía eléctrica produciendo su calentamiento, y mediante la cual es posible regular la temperatura del líquido (10) sin más que modificar los valores de tensión e intensidad transmitidos al cable calefactor (3),a resistive heating cable (3), shown in figures 2 and 3, located on the outer face of the channel (2), evenly distributed along its surface, as a "ground radiant ", connected to an external power supply (11) which provides electric energy producing heating, and by which it is possible to regulate the temperature of the liquid (10) without more than changing the voltage and intensity values transmitted to the heating cable (3),
- --
- una capa aislante (4) de poliuretano, dispuesta inferiormente a continuación del cable calefactor (3), envolviendo la superficie exterior del canal (2), adaptada para hacer menos influenciable la temperatura ambiente exterior, así como evitar la pérdida de calor, de forma que dicho calor sea transmitido íntegramente hacia el canal (2), ya insulating layer (4) of polyurethane, arranged inferiorly to continuation of the heating cable (3), wrapping the surface outside of the channel (2), adapted to make the outside ambient temperature, as well as prevent heat loss, so that said heat is transmitted entirely to the channel (2 and
- --
- dos cuerpos de tope (5) laterales, situados en ambos extremos longitudinales del canal (2), estableciendo un cierre de tipo estanco para evitar la salida del líquido (10).two lateral stop bodies (5), located at both ends longitudinal channels (2), establishing a type closure tight to prevent liquid leakage (10).
En esta realización preferente, el cable calefactor (3) recorre hasta cuatro veces la longitud del canal (2), de forma que se asegura el calentamiento de éste último en todos sus puntos, tal y como se puede apreciar en la figura 2.In this preferred embodiment, the cable heater (3) runs up to four times the length of the channel (2), so that the latter is warmed in all its points, as can be seen in figure 2.
De acuerdo con los resultados obtenidos en un experimento de cría de larvas de anfibios, se ha registrado una variación máxima de temperatura del líquido (10) entre la parte inferior y superior del canal (2) de \pm 0.2ºC, mientras que la variación máxima a lo largo del canal (2) es de \pm 0.5ºC.According to the results obtained in a amphibian larval rearing experiment, a maximum variation of liquid temperature (10) between the part lower and upper channel (2) of ± 0.2 ° C, while the Maximum variation along the channel (2) is ± 0.5 ° C.
El baño térmico portátil (1) aquí descrito destaca además por sus reducidas dimensiones y peso ligero, haciéndolo apto para ser transportado de manera sencilla y cómoda, sin tener que estar limitado exclusivamente a su instalación en un laboratorio o centro de investigación.The portable thermal bath (1) described here It also stands out for its small size and light weight, making it suitable for transport in a simple and comfortable way, without having to be limited exclusively to its installation in a Laboratory or research center.
Claims (5)
- --
- un canal (2) en cuyo interior se encuentra un volumen de líquido (10) a calentar,a channel (2) inside which is a volume of liquid (10) a to warm,
- --
- un cable calefactor (3) resistivo situado en la cara exterior del canal (2) uniformemente distribuido a lo largo y ancho de su superficie, que se encuentra conectado a una fuente de alimentación (11) externa que le aporta energía eléctrica produciendo su calentamiento, y mediante la cual es posible regular la temperatura del líquido (10) sin más que modificar los valores de tensión e intensidad transmitidos al cable calefactor (3), ya heating cable (3) resistive located on the outer face of the channel (2) evenly distributed along its surface, which is connected to an external power supply (11) which provides electric energy producing heating, and by which it is possible to regulate the temperature of the liquid (10) without more than changing the voltage and intensity values transmitted to the heating cable (3), and
- --
- una capa aislante (4) dispuesta inferiormente a continuación del cable calefactor (3), envolviendo la superficie exterior del canal (2), estando dicha capa aislante (4) adaptada para hacer menos influenciable la temperatura ambiente exterior, así como evitar la pérdida de calor, de forma que éste sea transmitido íntegramente hacia el canal (2), el cual calienta a su vez el líquido (10) contenido en su interior.a insulating layer (4) arranged below the cable heater (3), wrapping the outer surface of the channel (2), said insulating layer (4) being adapted to do less influenceable outside ambient temperature, as well as avoid heat loss, so that it is transmitted entirely towards the channel (2), which in turn heats the liquid (10) content inside.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201030780A ES2372085B1 (en) | 2010-05-24 | 2010-05-24 | PORTABLE THERMAL BATH. |
| PCT/ES2011/070367 WO2011148019A1 (en) | 2010-05-24 | 2011-05-23 | Portable thermal bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201030780A ES2372085B1 (en) | 2010-05-24 | 2010-05-24 | PORTABLE THERMAL BATH. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2372085A1 true ES2372085A1 (en) | 2012-01-13 |
| ES2372085B1 ES2372085B1 (en) | 2012-11-22 |
Family
ID=45003371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201030780A Expired - Fee Related ES2372085B1 (en) | 2010-05-24 | 2010-05-24 | PORTABLE THERMAL BATH. |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES2372085B1 (en) |
| WO (1) | WO2011148019A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2296479Y (en) * | 1996-10-22 | 1998-11-04 | 李发斌 | Insulation porcelain multifunctional water boiling device |
| JP2001250663A (en) * | 2000-03-03 | 2001-09-14 | Hakko Electric Mach Works Co Ltd | Portable beverage heater |
| CN201166445Y (en) * | 2007-12-07 | 2008-12-17 | 慈溪市福音电器有限公司 | Intelligent pocket-size electric boiler |
-
2010
- 2010-05-24 ES ES201030780A patent/ES2372085B1/en not_active Expired - Fee Related
-
2011
- 2011-05-23 WO PCT/ES2011/070367 patent/WO2011148019A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2296479Y (en) * | 1996-10-22 | 1998-11-04 | 李发斌 | Insulation porcelain multifunctional water boiling device |
| JP2001250663A (en) * | 2000-03-03 | 2001-09-14 | Hakko Electric Mach Works Co Ltd | Portable beverage heater |
| CN201166445Y (en) * | 2007-12-07 | 2008-12-17 | 慈溪市福音电器有限公司 | Intelligent pocket-size electric boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011148019A1 (en) | 2011-12-01 |
| ES2372085B1 (en) | 2012-11-22 |
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