ES2735632T3 - Self-pumping heat exchange unit - Google Patents
Self-pumping heat exchange unit Download PDFInfo
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- ES2735632T3 ES2735632T3 ES14382024T ES14382024T ES2735632T3 ES 2735632 T3 ES2735632 T3 ES 2735632T3 ES 14382024 T ES14382024 T ES 14382024T ES 14382024 T ES14382024 T ES 14382024T ES 2735632 T3 ES2735632 T3 ES 2735632T3
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- exchange unit
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G3/00—Rotary appliances
- F28G3/08—Rotary appliances having coiled wire tools, i.e. basket type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
- F28F13/125—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation by stirring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/008—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using scrapers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G3/00—Rotary appliances
- F28G3/10—Rotary appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0042—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for foodstuffs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/08—Fluid driving means, e.g. pumps, fans
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Cleaning In General (AREA)
Abstract
Unidad de intercambio térmico (1) autobombeante que comprende una carcasa externa (10) dotada de una boca de entrada (11) y una boca de salida (12) de un fluido caloportador; tres tubos interiores (20) alojados dentro de la carcasa externa (10) y vinculados igualmente con unas bocas de entrada (21) y salida (22) de un fluido producto, fluido que se desea calentar o enfriar; una barra giratoria (30) alargada dispuesta dentro de cada tubo interior (20) y que dispone de unos medios de limpieza de la pared interna del al menos un tubo interior (20), los medios de limpieza comprenden: - unos elementos rascadores (40), vinculados a la barra giratoria (30) y adaptados para rascar y desprender el fluido producto acumulado o fijado en la pared interna del al menos un tubo interior (20), y - una espiral sinfín (50) vinculada igualmente a la barra giratoria (30), - un motorreductor principal (60) conectado a través de un eje central (70) con un engranaje principal (71), conectado a su vez con el extremo de la barra giratoria (30), en la que la espiral sinfín (50) está dimensionalmente adaptada para discurrir a lo largo y rodear longitudinalmente la barra giratoria (30) a través de los espacios existentes entre los elementos rascadores (40), estando dicha espiral sinfín (50) adaptada para provocar un desplazamiento del fluido producto que circula a través del tubo interior (20) respectivo, generando un efecto de autobombeo, caracterizada porque la unidad de intercambio térmico (1) autobombeante además comprende: - un motorreductor auxiliar (80), acoplado al motorreductor principal (60), y conectado con un husillo roscado y una tuerca para permitir la separación de la unidad de intercambio térmico en dos bloques; - un bastidor inferior (90) que constituye el soporte de base de la unidad de intercambio térmico (1), comprendiendo dicho bastidor inferior (90) una prolongación adicional telescópica (91) dotada de unas ruedas (92) en la parte inferior; y en la que el engranaje principal (71) está vinculado con los engranajes secundarios (72) conectados a los extremos de cada una de las barras giratorias (30), estando dichos engranajes secundarios (72) fabricados en un material plástico.Self-pumping heat exchange unit (1) comprising an external casing (10) provided with an inlet port (11) and an outlet port (12) for a heat transfer fluid; three inner tubes (20) housed inside the outer casing (10) and also linked to inlet (21) and outlet (22) mouths of a product fluid, fluid that is to be heated or cooled; an elongated rotating bar (30) arranged inside each inner tube (20) and having means for cleaning the inner wall of the at least one inner tube (20), the cleaning means comprising: - scraping elements (40 ), linked to the rotating bar (30) and adapted to scrape and remove the product fluid accumulated or fixed on the internal wall of the at least one inner tube (20), and - an endless spiral (50) also linked to the rotating bar (30), - a main gearmotor (60) connected through a central shaft (70) with a main gear (71), connected in turn with the end of the rotating bar (30), in which the endless spiral (50) is dimensionally adapted to run along and longitudinally surround the rotating bar (30) through the spaces between the scraper elements (40), said endless spiral (50) being adapted to cause a displacement of the product fluid that circulates through tube in respective interior (20), generating a self-pumping effect, characterized in that the self-pumping heat exchange unit (1) also comprises: - an auxiliary gearmotor (80), coupled to the main gearmotor (60), and connected with a threaded spindle and a nut to allow the separation of the heat exchange unit into two blocks; - a lower frame (90) constituting the base support of the heat exchange unit (1), said lower frame (90) comprising an additional telescopic extension (91) provided with wheels (92) in the lower part; and wherein the main gear (71) is linked with the secondary gears (72) connected to the ends of each of the rotating bars (30), said secondary gears (72) being made of a plastic material.
Description
DESCRIPCIÓNDESCRIPTION
Unidad de intercambio térmico autobombeanteSelf-pumping heat exchange unit
Objeto de la invenciónObject of the invention
La presente invención pertenece al campo de los aparatos intercambiadores de calor, y más concretamente a máquinas de intercambio térmico entre fluidos, de iguales o distintas características, de aplicación en diferentes sectores, tales como el alimentario, farmacéutico, de la salud, etc.The present invention belongs to the field of heat exchangers, and more specifically to heat exchange machines between fluids, of the same or different characteristics, applicable in different sectors, such as food, pharmaceutical, health, etc.
El objeto principal de la presente invención es una unidad de intercambio térmico que destaca fundamentalmente por proporcionar un efecto autobombeante, y mantener limpia en todo momento su superficie de intercambio, mejorando el coeficiente de transferencia térmica, y permitiendo reducir sustancialmente las pérdidas de carga a través de sus tubos internos y externo, dichas pérdidas de carga estando generadas por la fricción de las paredes internas reales de los tubos.The main object of the present invention is a thermal exchange unit that stands out fundamentally for providing a self-pomp effect, and keeping its exchange surface clean at all times, improving the thermal transfer coefficient, and allowing substantially reducing load losses through of its internal and external tubes, said pressure losses being generated by the friction of the actual internal walls of the tubes.
Antecedentes de la invenciónBackground of the invention
En la actualidad son conocidas las máquinas de intercambio térmico entre fluidos, las cuales constan generalmente de al menos un tubo interior, por el que circula el “fluido producto”, fluido que se desea calentar o enfriar, y un tubo exterior o carcasa, por el que circula el “fluido servicio”, fluido de transmisión térmica.At present, thermal fluid exchange machines are known, which generally consist of at least one inner tube, through which the "product fluid" circulates, fluid that is to be heated or cooled, and an outer tube or shell, by the one that circulates the "service fluid", thermal transmission fluid.
Más concretamente, se conocen en el actual estado de la técnica intercambiadores térmicos cuyos conductos interiores están dotados de medios de limpieza, proporcionando así un efecto de autolimpieza de su superficie interior y permitiendo prolongar la vida útil y el mantenimiento de dichos intercambiadores térmicos, reduciendo el tiempo muerto de los mismos. Un ejemplo de estos intercambiadores arriba mencionados puede encontrarse en la solicitud de patente española ES2158752. Por otro lado, la solicitud de patente internacional WO2013/007842 A1 describe un dispositivo de intercambio térmico, que puede utilizarse para el tratamiento térmico de productos tales como zumos, pulpa y otros productos alimenticios, líquidos o en partículas. No obstante, las actuales máquinas de intercambio térmico entre fluidos adolecen de varios problemas e inconvenientes entre los que destacan:More specifically, heat exchangers whose inner ducts are provided with cleaning means are known in the current state of the art, thus providing a self-cleaning effect of their inner surface and allowing prolonging the life and maintenance of said heat exchangers, reducing the Dead time of them. An example of these exchangers mentioned above can be found in Spanish patent application ES2158752. On the other hand, the international patent application WO2013 / 007842 A1 describes a thermal exchange device, which can be used for the thermal treatment of products such as juices, pulp and other foodstuffs, liquids or particles. However, current thermal fluid exchange machines suffer from several problems and disadvantages, among which are:
- Presentan una elevada pérdida de carga, lo que produce un descenso importante y significativo en el rendimiento de la máquina.- They present a high loss of load, which produces a significant and significant decrease in machine performance.
- Las paredes internas de sus tubos sufren unas presiones de bombeo muy elevadas, con los riesgos y problemas que ello conlleva, sobretodo en casos de fluidos de alta viscosidad o con concentración de sólidos.- The internal walls of its tubes suffer very high pumping pressures, with the risks and problems that this entails, especially in cases of high viscosity or solids concentration fluids.
- No permiten regular o modificar el caudal de bombeo del fluido producto, pues viene predeterminado por la bomba previa a la que están conectadas.- They do not allow to regulate or modify the pumping flow of the product fluid, as it is predetermined by the previous pump to which they are connected.
- Sus carcasas son de un único paso, por lo que presentan un bajo coeficiente de transferencia térmica, además de que suponen una mayor exigencia de bombeo del fluido de servicio a la bomba, aumentando los costes.- Their housings are of a single step, reason why they present a low coefficient of thermal transfer, in addition to that they suppose a greater demand of pumping of the fluid of service to the pump, increasing the costs.
- La limpieza de las paredes internas de los tubos interiores no es total, dejando partes o tramos de dichos tubos por los que no actúan los medios de limpieza.- The cleaning of the inner walls of the inner tubes is not total, leaving parts or sections of said tubes for which the cleaning means do not act.
- Requieren de modo imprescindible estar conectadas a una bomba que provoque el movimiento y bombeo de los fluidos que circulan por el interior de los tubos.- They must be connected to a pump that causes the movement and pumping of the fluids that circulate inside the tubes.
- Los mecanismos de apertura de las actuales máquinas de intercambio a la hora de realizar labores de inspección y mantenimiento, son mecanismos complejos, lentos y tediosos.- The opening mechanisms of the current exchange machines when performing inspection and maintenance work are complex, slow and tedious mechanisms.
- Únicamente son operativas para un tipo concreto de fluidos, bien de baja viscosidad, o de alta viscosidad, pero sin posibilidad de trabajar con ambos fluidos.- They are only operative for a specific type of fluid, either of low viscosity, or of high viscosity, but without the possibility of working with both fluids.
Descripción de la invenciónDescription of the invention
Mediante la presente invención se solucionan los inconvenientes anteriormente citados proporcionando una unidad de intercambio térmico autobombeante que consigue reducir la pérdida de carga a través de sus conductos, optimizando sustancialmente el coeficiente de transferencia térmica, y permitiendo asimismo regular y obtener diferentes caudales de bombeo del fluido producto, fluido que se desea calentar o enfriar.By means of the present invention, the aforementioned drawbacks are solved by providing a self-pumping heat exchange unit that manages to reduce the loss of load through its ducts, substantially optimizing the thermal transfer coefficient, and also allowing to regulate and obtain different fluid pumping rates. product, fluid to be heated or cooled.
Más en particular, la unidad de intercambio térmico objeto de la invención es del tipo que comprende una carcasa externa dotada de una boca de entrada y una boca de salida de un fluido de “servicio”, es decir, fluido caloportador, pudiendo ser vapor de agua fría o glicolada, aceite térmico, etc.; al menos un tubo interior hueco, alojado dentro de la carcasa externa, y vinculado igualmente con unas bocas de entrada y salida de un fluido producto, fluido que se desea calentar o enfriar; una barra giratoria alargada dispuesta dentro del al menos un tubo interior y que dispone de unos medios de limpieza de la pared interna del al menos un tubo interior. En este contexto, "pérdidas de carga" debe entenderse como pérdidas generadas por la fricción de las paredes internas reales de los tubos.More particularly, the heat exchange unit object of the invention is of the type comprising an external housing provided with an inlet and an outlet of a "service" fluid, that is, heat transfer fluid, which can be steam of cold or glycol water, thermal oil, etc .; at least one hollow inner tube, housed inside the outer casing, and also linked with inlet and outlet mouths of a product fluid, fluid that is desired to be heated or cooled; an elongated rotating bar disposed within the at least one inner tube and having means for cleaning the inner wall of the at least one inner tube. In this context, "head losses" should be understood as losses generated by the friction of the actual internal walls of the tubes.
Así, la unidad de intercambio térmico aquí descrita destaca fundamentalmente por comprender adicionalmente: unos elementos rascadores, vinculados a la barra giratoria, y adaptados para rascar y desprender el fluido producto acumulado o fijado en la pared interna del al menos un tubo interior; y una espiral sinfín vinculada igualmente a la barra giratoria, dimensionalmente adaptada para recorrer y rodear longitudinalmente la barra por los espacios existentes entre los elementos rascadores, estando dicha espiral sinfín adaptada para provocar un desplazamiento del fluido producto circulante a través del al menos un tubo interior, generando un efecto de autobombeo.Thus, the heat exchange unit described here stands out primarily for additionally comprising: scraper elements, linked to the rotating bar, and adapted to scratch and release the product fluid accumulated or fixed on the inner wall of the at least one inner tube; and an endless spiral linked equally to the rotating bar, dimensionally adapted to travel and longitudinally surround the bar through the spaces between the scraper elements, said endless spiral being adapted to cause displacement of the circulating product fluid through the at least one inner tube, generating a self-pumping effect.
Preferentemente, los elementos rascadores presentan una configuración plana y alargada, permitiendo cubrir así la totalidad de la superficie interna de los tubos interiores, aumentando la eficiencia de limpieza.Preferably, the scraper elements have a flat and elongated configuration, thus allowing to cover the entire internal surface of the inner tubes, increasing the cleaning efficiency.
De acuerdo con la invención, la unidad de intercambio térmico comprende tres tubos interiores. De este modo, mediante una variación de la velocidad de giro de las barras existentes en los tubos interiores, y por tanto, de las espirales sinfín, es posible conseguir distintos caudales de bombeo del fluido producto que circula por dichos tubos interiores, permitiendo mejorar el coeficiente de transferencia térmica y reduciendo las pérdidas de carga generadas por el rozamiento de las propias paredes internas de los tubos.According to the invention, the heat exchange unit comprises three inner tubes. In this way, by varying the speed of rotation of the existing bars in the inner tubes, and therefore, of the endless spirals, it is possible to achieve different flow rates of the product fluid circulating through said inner tubes, allowing to improve the coefficient of thermal transfer and reducing the losses of load generated by the friction of the inner walls of the tubes.
Por otro lado, en relación con el accionamiento del movimiento de rotación de cada una de las barras giratorias, se ha previsto la disposición de un motorreductor conectado a través de un eje central con un engranaje principal, al cual se encuentran vinculados unos engranajes secundarios conectados con los extremos de cada una de las barras giratorias. De esta manera se consigue un movimiento solidario y un giro sincronizado de las barras. Asimismo, de forma preferente, el engranaje principal arriba citado es de acero inoxidable, mientras que los engranajes secundarios están fabricados en un material plástico, consiguiendo así evitar los molestos ruidos producidos por las transmisiones de los engranajes, al mismo tiempo que dichos engranajes secundarios constituyen un elemento fusible como medio de protección contra sobrecorrientes.On the other hand, in relation to the actuation of the rotation movement of each of the rotating bars, the provision of a gearmotor connected through a central axis with a main gear is provided, to which connected secondary gears are connected. with the ends of each of the rotating bars. In this way a solidarity movement and a synchronized rotation of the bars is achieved. Likewise, preferably, the main gear mentioned above is made of stainless steel, while the secondary gears are made of a plastic material, thus avoiding the annoying noise produced by the transmissions of the gears, at the same time that said secondary gears constitute a fuse element as a means of protection against overcurrents.
Finalmente, cabe señalar que se ha previsto que la unidad de intercambio térmico aquí descrita pueda ser de aplicación tanto en el sector alimentario, como en el de la salud, medioambiental o industrial. Asimismo, puede emplearse como unidad regenerativa, esto es, empleando un mismo fluido producto en ambas partes de la unidad, carcasa y tubos interiores, recuperando de esta manera la propia energía del fluido producto.Finally, it should be noted that the thermal exchange unit described here is expected to be applicable both in the food sector, as well as in the health, environmental or industrial sector. Likewise, it can be used as a regenerative unit, that is, using the same product fluid in both parts of the unit, housing and inner tubes, thus recovering the energy of the product fluid itself.
Por tanto, mediante la presente invención se proporciona una unidad de intercambio térmico de acuerdo con la reivindicación 1 que, además de eliminar eficientemente los residuos de la pared interna de los tubos, reducir la pérdida de carga y mejorar sustancialmente el coeficiente de transferencia térmica, destaca asimismo por la obtención de un “efecto de autobombeo” del fluido producto que circula por dichos tubos internos, lo que hace posible que los requerimientos de la bomba externa sean menores, llegando incluso a poder prescindir de ella en algunos casos, constituyendo una solución alternativa más eficiente, económica y viable que los sistemas de autolimpieza de los intercambiadores de calor actuales.Therefore, by means of the present invention a thermal exchange unit according to claim 1 is provided which, in addition to efficiently eliminating waste from the inner wall of the tubes, reducing the loss of load and substantially improving the thermal transfer coefficient, It also stands out for obtaining a “self-pumping effect” of the product fluid that circulates through said internal tubes, which makes it possible that the requirements of the external pump are lower, even being able to do without it in some cases, constituting a solution alternative more efficient, economical and viable than the self-cleaning systems of current heat exchangers.
Descripción de los dibujosDescription of the drawings
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 una realización preferente 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 made and in order to help a better understanding of the characteristics of the invention, in accordance with a practical preferred embodiment thereof, a set of drawings is attached as an integral part of said description. In an illustrative and non-limiting manner, the following has been represented:
La Figura 1 muestra una vista en perspectiva general de la unidad de intercambio térmico autobombeante objeto de invención.Figure 1 shows a general perspective view of the self-pumping heat exchange unit object of the invention.
La Figura 2 muestra una vista en perspectiva de la carcasa de la unidad de intercambio de la invención, con sus bocas de entrada y salida del fluido de servicio, apreciándose tres tubos interiores según esta realización.Figure 2 shows a perspective view of the housing of the exchange unit of the invention, with its inlet and outlet mouths of the service fluid, showing three inner tubes according to this embodiment.
La Figura 3 muestra una vista en perspectiva de una de las barras dispuestas internamente, dentro de cada uno de los tres tubos interiores de la figura 2.Figure 3 shows a perspective view of one of the bars arranged internally, within each of the three inner tubes of Figure 2.
La Figura 4 muestra una vista detallada de los engranajes de accionamiento de cada una de las barras existentes en el interior de los tubos interiores.Figure 4 shows a detailed view of the drive gears of each of the existing bars inside the inner tubes.
Realización preferente de la invenciónPreferred Embodiment of the Invention
Se describe a continuación una realización preferente haciendo mención a las figuras arriba citadas, sin que ello limite o reduzca el ámbito de protección de la presente invención.A preferred embodiment is described below with reference to the aforementioned figures, without limiting or reducing the scope of protection of the present invention.
En la figura 1 se puede apreciar una vista general de la unidad de intercambio térmico (1) autobombeante, la cual comprende:In figure 1 a general view of the self-pumping heat exchange unit (1) can be seen, which comprises:
- una carcasa externa (10), mostrada con mayor detalle en la figura 2, dotada de una boca de entrada (11) y una boca de salida (12), por las cuales está destinado a circular un fluido de “servicio”, fluido caloportador;- an external housing (10), shown in greater detail in Figure 2, provided with an inlet (11) and an outlet (12), through which a fluid "service", fluid is intended to circulate heat carrier;
- tres tubos interiores (20) huecos, alojados dentro de la carcasa externa (10), y vinculados igualmente con unas bocas de entrada (21) y salida (22) de un fluido producto, fluido que se desea calentar o enfriar;- three hollow inner tubes (20), housed inside the outer casing (10), and also connected with inlet (21) and outlet (22) mouths of a product fluid, fluid that is to be heated or cooled;
- una barra giratoria (30) alargada, mostrada en la figura 3, dispuesta dentro del al menos un tubo interior (20),- an elongated rotating bar (30), shown in Figure 3, arranged inside the at least one inner tube (20),
- unos elementos rascadores (40) de configuración plana y alargada, representados igualmente en la figura 3, vinculados a la barra giratoria (30) y adaptados para rascar y desprender el fluido producto acumulado o fijado en la pared interna del al menos un tubo interior (20), y- scraper elements (40) of flat and elongated configuration, also shown in figure 3, linked to the rotating bar (30) and adapted to scratch and release the product fluid accumulated or fixed on the inner wall of the at least one inner tube (20), and
- una espiral sinfín (50) vinculada igualmente a la barra giratoria (30), dimensionalmente adaptada para recorrer y rodear longitudinalmente a la barra giratoria (30) por los espacios existentes entre los elementos rascadores (40), tal y como se observa en dicha figura 3, estando dicha espiral sinfín (50) adaptada para provocar el desplazamiento del fluido producto circulante a través del al menos un tubo interior (20), generando un efecto de autobombeo.- an endless spiral (50) also linked to the rotating bar (30), dimensionally adapted to travel and longitudinally surround the rotating bar (30) through the spaces between the scraper elements (40), as observed in said Figure 3, said endless spiral (50) being adapted to cause the displacement of the circulating product fluid through the at least one inner tube (20), generating a self-pumping effect.
Además, tal y como se puede observar en la figura 1, la unidad de intercambio térmico (1) comprende adicionalmente un motorreductor principal (60) conectado a través de un eje central (70), mostrado en la figura 4, a un engranaje principal (71) de acero inoxidable, éste último conectado a su vez con unos engranajes secundarios (72) que se encuentran vinculados a los extremos de cada una de las barras giratorias (30), tal y como se muestra en la figura 3. Dichos engranajes secundarios (72), representados en las figuras 3 y 4, están fabricados en material plástico, de modo que además de servir como elemento fusible de seguridad, permite evitar el molesto ruido generalmente producido por las transmisiones de engranajes.Furthermore, as can be seen in Figure 1, the heat exchange unit (1) additionally comprises a main gearmotor (60) connected through a central shaft (70), shown in Figure 4, to a main gear (71) stainless steel, the latter connected in turn with secondary gears (72) that are linked to the ends of each of the rotating bars (30), as shown in Figure 3. Said gears Secondary (72), represented in Figures 3 and 4, are made of plastic material, so that in addition to serving as a safety fuse element, it allows to avoid the annoying noise generally produced by gear transmissions.
Asimismo, en dicha figura 1 se muestra un motorreductor auxiliar (80), acoplado al motorreductor principal (60), y que en conexión con un husillo roscado y una tuerca, permite la separación de la unidad de intercambio térmico en dos bloques, para una rápida, sencilla y cómoda apertura de la unidad de intercambio térmico (1), que facilite las tareas de inspección y/o mantenimiento por parte de personal cualificado. Finalmente, señalar que la unidad incorpora un bastidor inferior (90), mostrado igualmente en la figura 1, constituyendo el soporte base de la unidad de intercambio térmico (1), y que en la presente realización comprende además una prolongación adicional telescópica (91) dotada inferiormente de unas ruedas (92) en la parte inferior, facilitando así su desplazamiento y permitiendo ocupar un mínimo espacio.Likewise, in said figure 1 an auxiliary gearmotor (80) is shown, coupled to the main gearmotor (60), and which, in connection with a threaded spindle and a nut, allows the separation of the thermal exchange unit into two blocks, for a Quick, simple and convenient opening of the thermal exchange unit (1), which facilitates inspection and / or maintenance tasks by qualified personnel. Finally, it should be noted that the unit incorporates a lower frame (90), also shown in Figure 1, constituting the base support of the heat exchange unit (1), and that in the present embodiment it also comprises an additional telescopic extension (91) provided with lower wheels (92) in the lower part, thus facilitating its displacement and allowing it to occupy a minimum space.
Por último, cabe citar las mejoras y ventajas obtenidas mediante la unidad de intercambio térmico de la presente invención:Finally, it is worth mentioning the improvements and advantages obtained through the thermal exchange unit of the present invention:
- Aumento de su rendimiento total, como resultado de una reducción sustancial de la pérdida de carga a través de sus conductos.- Increase of its total performance, as a result of a substantial reduction in the loss of load through its ducts.
- Debido a su efecto autobombeante se eliminan los problemas derivados de las altas presiones de bombeo.- Due to its self-pumping effect, problems arising from high pumping pressures are eliminated.
- Posibilidad de regulación del caudal de bombeo del fluido producto según las necesidades de cada aplicación.- Possibility of regulating the pumping flow of the product fluid according to the needs of each application.
- Posibilidad de “multipaso” de la espiral sinfín, mejorando así el coeficiente de transferencia térmica, por lo que los requerimientos de la bomba son inferiores.- Possibility of “multipass” of the endless spiral, thus improving the coefficient of thermal transfer, so the pump requirements are lower.
- Maximización de la limpieza de las paredes internas de los tubos interiores.- Maximization of the cleaning of the inner walls of the inner tubes.
- Permite prescindir o reducir significativamente las necesidades de una bomba previa, por ser el efecto autobombeante suficiente.- Allows you to dispense or significantly reduce the needs of a pre-pump, as the self-pumped effect is sufficient.
- Permite una apertura/cierre rápida, cómoda y sencilla de la unidad de intercambio para tareas de inspección y/o mantenimiento.- Allows quick, convenient and easy opening / closing of the exchange unit for inspection and / or maintenance tasks.
- Permite trabajar y operar con diferentes tipos de fluidos, ya sean de baja o alta viscosidad. - Allows working and operating with different types of fluids, whether low or high viscosity.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201330088A ES2481190B1 (en) | 2013-01-25 | 2013-01-25 | Self-pumping heat exchange unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2735632T3 true ES2735632T3 (en) | 2019-12-19 |
Family
ID=50068953
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201330088A Active ES2481190B1 (en) | 2013-01-25 | 2013-01-25 | Self-pumping heat exchange unit |
| ES14382024T Active ES2735632T3 (en) | 2013-01-25 | 2014-01-27 | Self-pumping heat exchange unit |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201330088A Active ES2481190B1 (en) | 2013-01-25 | 2013-01-25 | Self-pumping heat exchange unit |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20140209274A1 (en) |
| EP (1) | EP2759796B1 (en) |
| ES (2) | ES2481190B1 (en) |
| PT (1) | PT2759796T (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107205426A (en) * | 2014-12-23 | 2017-09-26 | 开利公司 | Freezing jar agitator |
| CN106736328B (en) * | 2016-11-30 | 2021-02-09 | 重庆渝青机械配件制造有限公司 | Processing technology of multi-ligament spoiler |
| AT519546B1 (en) * | 2017-04-12 | 2018-08-15 | Brandstetter Johann | heat exchangers |
| NL2024720B1 (en) | 2020-01-21 | 2021-09-09 | Ireliemar B V | Heat exchanger and use of heat exchanger |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1184612A (en) * | 1957-07-12 | 1959-07-23 | Holo Flite Int Inc | Heat exchange device |
| FR1214074A (en) * | 1958-01-22 | 1960-04-06 | Zieren Chemiebau Gmbh Dr A | Improvements in processes and devices for heat exchange between liquid or gaseous fluids liable to soil heat exchange surfaces |
| FR2224728A1 (en) * | 1973-04-09 | 1974-10-31 | Rouchy Christian | Spirally wound scraper rod - for automatic internal cleaning of heat exchanger tubes |
| US3848289A (en) * | 1973-04-16 | 1974-11-19 | Chemetron Corp | Scraper blade |
| JPS564467Y2 (en) * | 1975-11-15 | 1981-01-30 | ||
| US4240401A (en) * | 1978-02-21 | 1980-12-23 | Arvin Industries, Inc. | Fireplace heat exchanger |
| FR2439630A1 (en) * | 1978-10-23 | 1980-05-23 | Montage Cie Indle | Mechanism to clean smoke tubes of boiler, economiser etc. - in which each tube is scraped by internal power driven auger |
| ES2158752B1 (en) | 1998-07-16 | 2002-06-16 | Hrs Spiratube S L | IMPROVEMENTS IN THERMAL EXCHANGERS FOR TREATMENT OF LIQUIDS. |
| DE102009026173A1 (en) * | 2009-02-24 | 2010-08-26 | Georg Hipp Maschinenbau Gmbh | Low-maintenance exhaust gas heat exchanger for e.g. combustion gases, of e.g. internal-combustion engines, has strippers connected with transmission by shaft, where motor is arranged at transmission |
| EP2593728B1 (en) * | 2010-07-12 | 2019-09-18 | Evert Frederik Potgieter | Industrial shell and tube heat exchanger |
| EP2410279A1 (en) * | 2010-07-21 | 2012-01-25 | Thomas Hipp | Low-maintenance heat exchanger comprising rotating scrapers |
| EP2684004B1 (en) * | 2011-03-11 | 2016-09-14 | Blentech Corporation | Multi-surface heat exchange with vacuum capability and magnetic scrapers |
| ES2398978B2 (en) * | 2011-07-14 | 2013-10-10 | Antonio MORENO GARCÍA | IMPROVED THERMAL EXCHANGER DEVICE FOR TREATMENT OF LIQUIDS AND OTHERS. |
| WO2013046433A1 (en) * | 2011-09-30 | 2013-04-04 | 三菱電機株式会社 | Motor |
-
2013
- 2013-01-25 ES ES201330088A patent/ES2481190B1/en active Active
- 2013-10-07 US US14/047,712 patent/US20140209274A1/en not_active Abandoned
-
2014
- 2014-01-27 EP EP14382024.9A patent/EP2759796B1/en active Active
- 2014-01-27 PT PT14382024T patent/PT2759796T/en unknown
- 2014-01-27 ES ES14382024T patent/ES2735632T3/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP2759796A3 (en) | 2015-05-27 |
| PT2759796T (en) | 2019-07-25 |
| ES2481190B1 (en) | 2015-01-16 |
| ES2481190A1 (en) | 2014-07-29 |
| US20140209274A1 (en) | 2014-07-31 |
| EP2759796B1 (en) | 2019-06-05 |
| EP2759796A2 (en) | 2014-07-30 |
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