WO2015128514A1 - Self-cleaning filtration system for railway air-conditioning facilities - Google Patents
Self-cleaning filtration system for railway air-conditioning facilities Download PDFInfo
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- WO2015128514A1 WO2015128514A1 PCT/ES2014/070151 ES2014070151W WO2015128514A1 WO 2015128514 A1 WO2015128514 A1 WO 2015128514A1 ES 2014070151 W ES2014070151 W ES 2014070151W WO 2015128514 A1 WO2015128514 A1 WO 2015128514A1
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- filter
- air
- self
- chamber
- cleaning
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/446—Auxiliary equipment or operation thereof controlling filtration by pressure measuring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/90—Cleaning of purification apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
Definitions
- the present invention relates to a self-imminent filtration system, which has been specially designed to be implemented in railway air conditioning installations.
- the object of the invention is to provide a self-cleaning filtration system, which, thanks to its own nature, allows to minimize the maintenance of this type of filtration systems, significantly increasing its efficiency and thereby reducing maintenance costs.
- air conditioning systems in trains the air entering cars and driving cabins, is subjected to a filtering system in order to eliminate different types of particles, such as dust, sand , etc..
- the self-cleaning filtration system for railway air conditioning installations that the invention proposes solves in a fully satisfactory manner the aforementioned problem, thanks to its own self-cleaning character, so that under adverse conditions it can work without No maintenance of the order of six months to a year or even more.
- an air filtration system itself, and its filter cleaning and evacuation system for dust and filtered sand
- the system is integrated into a housing in which a fresh air inlet port is defined externally ⁇ with its corresponding grid and electric gate, which gives fresh air access to a first chamber, with a double function, act as a fresh air inlet chamber, as well as a sand and dust collection duct in the cleaning process of the corresponding filter.
- This first chamber is connected to a second chamber in which a cartridge filter is established, so that the air is passed through it, leaving the sand and dust filtered through the filter's own outer surface.
- the self-cleaning system feeds on the train's own pneumatic system, so that through a series of solenoid valves and nozzles, high pressure air is injected into the filter, which causes dust and sand disposed on the external surface of the same they detach from the filter, going towards the fresh air inlet chamber, being expelled through the access door to said chamber, for which in it can also include nozzles associated to the said circuit of said compressed air facing the grid of It is envisaged that the structure described above will be duplicated, that is, that two filtering circuits face each other in the system, in order that through the duplication of mechanisms the system will function optimally regardless of the direction of the train's advance.
- the system will close the corresponding fresh air inlet gate associated with said filter, and will continue working with the other filter circuit in the normal way.
- the system is properly soundproofed in order to avoid passengers from noise produced during the self-cleaning process
- the system described in this way is connected to the air conditioning unit, and the entire assembly is perfectly integrated with its corresponding housings.
- Figure I Shows my perspective view of a self-cleaning filtration system for railway air conditioning installations carried out in accordance with the object of the present invention, integrated together with the corresponding air conditioning system.
- Figure 2. Shows a plan view of the assembly of the previous figure.
- Figure 3. Shows a detail in perspective of the device of the invention devoid of its covers, as well as its connection to the ventilation group that participates in the air conditioning system.
- Figure 4 shows a view similar to that of Figure 3, but in which a series of arrows corresponding to the air flow according to the system in normal operation, that is in the process of filtering, have been represented.
- Figures 5 and 6, - They show paths similar to those of Figure 3, but in which a series of arrows corresponding to the sequence air flow are represented on the system! that occurs in the self-cleaning process.
- a first chamber (4) participates, which is accessed by fresh air from the outside through an inlet (5), assisted by the corresponding grid, which performs a first stage of coarse particle filtration, next to which a second chamber (6) is established, which can be assisted by an electric intermediate door (7), in which sine cartridge filter (8) is established, which extends to everything along said second chamber, so that, as shown in Figure 4, the air in normal filtering situation enters through the inlet mouth (5), crosses the first chamber (4) and accesses the second chamber (6), crossing the filter (8) through its outer surface, the dust or sand particles contained in the inlet air being left on said external surface, so that said filter communicates internally with a central chamber (9), through a pneumatic gate (10) that to l Close insulates the central chamber to prevent the passage of noise to the passenger room during the cleaning process, in which an electric fan drives said air towards the air conditioning system to which the filtering system is coupled.
- a pressure sensor is established, which measures the pressure variations within said filter, so that a preset value of pressure drop, which will coincide with a saturation value of the filter likewise preset, indicates to the system the need for it to clean itself.
- the described system is duplicated in terms of the arrangement of filters (8) and input chambers (4-6), presenting a symmetrical configuration with respect to my imaginary axis of symmetry orthogonal to the direction of advance of the train, in order that, by the duplication of mechanisms, the system works optimally regardless of the direction of advance of the train.
- the cartridge filters (8) these will be easily interchangeable on the side without removing the upper covers.
- the unit can close the fresh air damper to avoid the accumulation of sand in the filter, being able to selectively use the least visible cleaning circuit. affected by said storm depending on the wind direction.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to a dynamic self-cleaning filtering system which uses cartridge filters (8) into which pressure sensors are inserted such that a pre-established pressure drop value defines the actuation of the self-cleaning system. Said system consists of a store (11) of compressed air, which is supplied by the train's own pneumatic system which, by means of the corresponding electrovalves and diffusion nozzles, injects high-pressure air into the filter (8), decreasing the amount of dust and sand on the outward-facing outer surface thereof.
Description
La presente invención se refiere a un sistema de filtración auto- Imipiante, que ha sido especialmente concebido para implantarse en instalaciones de climatización ferroviarias. The present invention relates to a self-imminent filtration system, which has been specially designed to be implemented in railway air conditioning installations.
El objeto de la invención es proporcionar un sistema de filtración auto-limpliante, que merced a su propia naturaleza permita minimizar el mantenimiento de este tipo de sistemas de filtración, incrementando sensiblemente su eficienci y reduciendo por tanto los costes de manteiiirniento.
The object of the invention is to provide a self-cleaning filtration system, which, thanks to its own nature, allows to minimize the maintenance of this type of filtration systems, significantly increasing its efficiency and thereby reducing maintenance costs.
En el ámbito de aplicación práctica de la invención, los sistemas de climatización en trenes, el aire que entra en los coches y cabinas de conducción, es sometido a un sistema de filtrado en orden a eliminar diferentes tipos de partículas, tales como polvo, arena, etc.. In the practical scope of the invention, air conditioning systems in trains, the air entering cars and driving cabins, is subjected to a filtering system in order to eliminate different types of particles, such as dust, sand , etc..
Hasta la fecha el sistema mas efectivo conocido consiste en la inclusión de sistemas de filtración en los que participa una primera fase a base de filtros ciclónicos, en los que se elimina un tanto por ciento de las partículas, tras la que se establece una segunda fase de filtrado a base de
filü S de bolsa. To date, the most effective system known is the inclusion of filtration systems in which a first phase based on cyclonic filters participates, in which a certain percentage of the particles are removed, after which a second phase is established filtering based on bag filü.
Sí bien este sistema fondona satisfactoriamente desde el punto de vista de filtrado, presenta una problemática que se centra fundamentalmente en el hecho de que los filtros de bolsa deben ser sustituidos cada poco tiempo, lo que supone un mantenimiento caro y frecuente, While this system is satisfactory from the filtering point of view, it presents a problem that focuses primarily on the fact that bag filters must be replaced every so often, which is expensive and frequent maintenance,
Esta problemática se ve agravada cuando los sistemas de filtración están destinados a implantarse en trenes destinados a circular por zonas desérticas, en las que son frecuentes las tormentas de arena, produciéndose una rápida saturación de los filtros de bolsa. This problem is aggravated when the filtration systems are intended to be implemented in trains destined to circulate in desert areas, in which sandstorms are frequent, producing a rapid saturation of bag filters.
En estas condiciones, el niantenimiento o sustitución de los filtros de bolsa debe realizarse cada 10-15 días, con los consecuentes problemas anteriormente comentados que ello supone. Under these conditions, the maintenance or replacement of bag filters must be carried out every 10-15 days, with the consequent problems mentioned above.
DESCRIPCIÓN DE LA INVENCIÓN El sistema de filtración auto-limpiante para instalaciones de climatización ferroviarias que la invención propone resuelve de forma plenamente satisfactoria la problemática anteriormente expuesta, merced a su propio carácter auto-limpiante, de manera que en condiciones adversas puede llegar a funcionar sin nmgún tipo de mantenimiento del orden de seis meses a un año o incluso mas. DESCRIPTION OF THE INVENTION The self-cleaning filtration system for railway air conditioning installations that the invention proposes solves in a fully satisfactory manner the aforementioned problem, thanks to its own self-cleaning character, so that under adverse conditions it can work without No maintenance of the order of six months to a year or even more.
Para ello, en el sistema de la invención participan dos subsistemas; un sistema de filtración de aire propiamente dicho, y u sistema de limpieza de filtros y evacuación para el polvo y la arena filtrada,
De forma mas concreta, el sistema se integra en una carcasa en la que exteriormente se define una boca de entrada de aire fresco } con su correspondiente rejilla y compuerta eléctrica, que da acceso al aire fresco a una primera cámara, con una doble función, actuar como cámara de entrada de aire fresco, así como de conducto de recogida de la arena y polvo en el proceso de limpieza del correspondiente filtro. For this, two subsystems participate in the system of the invention; an air filtration system itself, and its filter cleaning and evacuation system for dust and filtered sand, More specifically, the system is integrated into a housing in which a fresh air inlet port is defined externally } with its corresponding grid and electric gate, which gives fresh air access to a first chamber, with a double function, act as a fresh air inlet chamber, as well as a sand and dust collection duct in the cleaning process of the corresponding filter.
Esta primera cámara se conecta con una segunda cámara en la que se establece un filtro de cartucho, de manera que el aire se hace pasar a través del mismo, quedando la arena y polvo filtrados a través de la propia superficie exter or del filtro. This first chamber is connected to a second chamber in which a cartridge filter is established, so that the air is passed through it, leaving the sand and dust filtered through the filter's own outer surface.
El aire una vez filtrado es aspirado por un ventilador y enviado hacia el correspondiente equipo de climatización, Once filtered air is sucked by a fan and sent to the corresponding air conditioning equipment,
A partir de mi transductor de presión diferencial establecido en el seno del filtro se miden las variaciones de presión a través de dicho filtro, de manera que, un valor preestablecido de caída de presión, que coincidirá con un valor de saturación del filtro igualmente preestablecido, indica al sistema la necesidad de que el mismo se auto-limpie. From my differential pressure transducer established within the filter, the pressure variations are measured through said filter, so that a preset value of pressure drop, which will coincide with a saturation value of the equally preset filter, indicates to the system the need for it to clean itself.
Para ello, el sistema de auto-limpieza se alimenta del propio sistema neumático del tren, de manera que a través de una serie de electroválvulas y boquillas se inyecta aire a alta presión en el seno del filtro, lo que provoca que el polvo y arena dispuestos sobre la superficie extema del mismo se desprendan del filtro, dirigiéndose haci la cámara de entrada de aire fresco, siendo expulsados a través de la compuerta de acceso a dicha cámara, para lo cual en la misma pueden incluirse igualmente boquillas asociadas al comentado circuito de aire comprimido orientadas hacia la rejilla de
Se ha previsto que la estructura anteriormente descrita se vea duplicada, es decir, que en el sistema participen dos circuitos de filtrado enfrentados entre sí, en orden a que mediante la duplicidad de mecanismos el sistema funcione óptimamente indistintamente de la dirección de avance del tren. For this, the self-cleaning system feeds on the train's own pneumatic system, so that through a series of solenoid valves and nozzles, high pressure air is injected into the filter, which causes dust and sand disposed on the external surface of the same they detach from the filter, going towards the fresh air inlet chamber, being expelled through the access door to said chamber, for which in it can also include nozzles associated to the said circuit of said compressed air facing the grid of It is envisaged that the structure described above will be duplicated, that is, that two filtering circuits face each other in the system, in order that through the duplication of mechanisms the system will function optimally regardless of the direction of the train's advance.
En caso de avería de uno de los filtros, el sistema cerrará la correspondiente compuerta de entrada de aire fresco asociada a dicho filtro, y seguirá trabajando con el otro circuito de filtrado de forma normal. In case of failure of one of the filters, the system will close the corresponding fresh air inlet gate associated with said filter, and will continue working with the other filter circuit in the normal way.
De acuerdo con otra de las características de la invención, se ha previsto que el sistema esté debidamente insonorizade en orden a evitar a los pasajeros el ruido que se produce durante el proceso de auto-limpieza, In accordance with another feature of the invention, it is provided that the system is properly soundproofed in order to avoid passengers from noise produced during the self-cleaning process,
El sistema así descrito se conecta al equipo de climatización quedando perfectamente integrado todo el conjunto con sus correspondientes carcasas. The system described in this way is connected to the air conditioning unit, and the entire assembly is perfectly integrated with its corresponding housings.
Se consigue de esta forma, un sistema de filtrado con una larga vida útil y mínimo mantemmiento, especialmente idóneo para zonas en las que exista mucho polvo y/o arena en el ambiente, como por ejemplo en zonas desérticas. In this way, a filtering system with a long service life and minimum maintenance is achieved, especially suitable for areas where there is a lot of dust and / or sand in the environment, such as in desert areas.
DESCRIPCIÓN DE LOS DIBUJOS DESCRIPTION OF THE DRAWINGS
Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características del invento, se acompaña a la presente memoria descriptívaf como parte integrante de la
misma, una figura en la cual 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, the present specification f is attached as an integral part of the same, a figure in which with illustrative and non-limiting nature, the following has been represented:
Figura I Muestra mía vista en perspectiva de un sistema de filtrado autolirnpiante para instalaciones de climatización ferroviarias realizado de acuerdo con el objeto de la presente invención, integrado junto al correspondiente sistema de climatización. Figure I Shows my perspective view of a self-cleaning filtration system for railway air conditioning installations carried out in accordance with the object of the present invention, integrated together with the corresponding air conditioning system.
La figura 2.- Muestra una vista en planta del conjunto de la figura anterior. Figure 2.- Shows a plan view of the assembly of the previous figure.
La figura 3.- Muestra un detalle en perspectiva del dispositivo de la invención desprovisto de sus tapas, así como su conexión al grupo de ventilación que participa en el sistema de climatización. Figure 3.- Shows a detail in perspective of the device of the invention devoid of its covers, as well as its connection to the ventilation group that participates in the air conditioning system.
La figura 4.~ Muestr una vista similar a la de la figura 3, pero en la que se han representado una serie de flechas correspondientes al flujo del aire de acuerdo con el sistema en proceso normal de funcionamiento, es decir en proceso de filtrado. Figure 4 shows a view similar to that of Figure 3, but in which a series of arrows corresponding to the air flow according to the system in normal operation, that is in the process of filtering, have been represented.
Las figuras 5 y 6,- Muestran sendas vistas similares a la de la figura 3, pero en la que sobre el sistema aparecen representadas una serie de flechas correspondientes al flujo de aire secuencia! que se produce en el proceso de auto-limpieza.
Figures 5 and 6, - They show paths similar to those of Figure 3, but in which a series of arrows corresponding to the sequence air flow are represented on the system! that occurs in the self-cleaning process.
En las figuras 1 y 2 se ha representado un sistema de aire acondicionado para trenes, en el que se integra el sistema de filtrado objeto de la invención, de manera que en el mismo participan un equipo de
condensación (1 ) y un equipo de evaporación (2) convencionales, y e! sistema de filtrado auto-limpiante propiamente dicho (3) objeto de la presente invención. Pues bien» en el sistema de filtrado se lia previsto que participe una primera cámara (4) a la que accede el aire fresco del exterior a través de una boca de entrada (5), asistida por la correspondiente rejilla, que realiza una primera etapa de filtración de partículas gruesas, junto a la que se establece una segunda cámara (6), que puede asistida por una puerta intermedia (7) eléctrica, en cuyo seno se establece im filtro (8) de cartucho, que se extiende a todo lo largo de dicha segunda cámara, de manera que, tal y como se representa en la figura 4, el aire en situación normal de filtrado entra a través de la boca de entrada (5), atraviesa la primera cámara (4) y accede a la segunda cámara (6), atravesando el filtro (8) por su superficie extema, quedando sobre dicha superficie externa el polvo o partículas de arena contenidas en el aire de entrada, de modo que dicho filtro comunica internamente con una cámara central (9), a través de una compuerta neumática (10) que al cerrar aisla la cámara central para evitar el paso del ruido a la sala de pasajeros en el proceso de limpieza, en la que un electroventílador impulsa dicho aire hacia el sistema de climatización al que se acopla el sistema de filtrado. In Figures 1 and 2 an air conditioning system for trains has been represented, in which the filtering system object of the invention is integrated, so that in it a team of Condensation (1) and evaporation equipment (2) conventional, ye! self-cleaning filtering system itself (3) object of the present invention. Well, » in the filtering system, it is planned that a first chamber (4) participates, which is accessed by fresh air from the outside through an inlet (5), assisted by the corresponding grid, which performs a first stage of coarse particle filtration, next to which a second chamber (6) is established, which can be assisted by an electric intermediate door (7), in which sine cartridge filter (8) is established, which extends to everything along said second chamber, so that, as shown in Figure 4, the air in normal filtering situation enters through the inlet mouth (5), crosses the first chamber (4) and accesses the second chamber (6), crossing the filter (8) through its outer surface, the dust or sand particles contained in the inlet air being left on said external surface, so that said filter communicates internally with a central chamber (9), through a pneumatic gate (10) that to l Close insulates the central chamber to prevent the passage of noise to the passenger room during the cleaning process, in which an electric fan drives said air towards the air conditioning system to which the filtering system is coupled.
En el seno del filtro (8) se establece un sensor de presión, que mide las variaciones de presión en el seno de dicho filtro, de manera que, un valor preestablecido de caída de presión, que coincidirá con un valor de saturación del filtro igualmente preestablecido, indica al sistema la necesidad de que el mismo se auto-limpie. Within the filter (8) a pressure sensor is established, which measures the pressure variations within said filter, so that a preset value of pressure drop, which will coincide with a saturation value of the filter likewise preset, indicates to the system the need for it to clean itself.
En el seno de la cámara central. (9) se ha previsto que se establezca un depósito (I I) de aire comprimido, que se alimenta del propio
sistema neumático del tren, el cual, gobernado por el sistema electrónico de control y mediante las correspondientes electroválvulas y boquillas difusores inyecta aire a alta presión en el seno del filtro (8), lo que provoca que el polvo y arena dispuestos sobre la superficie externa del mismo se desprendan del filtro, dirigiéndose hacia la primera cámara (4) de entrada de aire limpio tal corno muestra la figura 5, de manera que una vez reconducídos dichos residuos a la primera cámara (4) se cierra la compuerta (7) y se impulsa nuevamente aire a presión en el seno de la primera cámara (4) a través de una boquilla (12) expulsándose dichos residuos a través de la boca de entrada (5) tal como muestra la figura 6. Within the central chamber. (9) it is planned to establish a reservoir (II) of compressed air, which is fed by the own pneumatic train system, which, governed by the electronic control system and by means of the corresponding solenoid valves and diffuser nozzles injects high pressure air into the filter (8), which causes the dust and sand arranged on the external surface from the filter they detach from the filter, going towards the first clean air inlet chamber (4), as shown in Figure 5, so that once said waste has been redirected to the first chamber (4) the gate (7) is closed and Pressurized air is again impelled into the first chamber (4) through a nozzle (12), said waste being expelled through the inlet mouth (5) as shown in Figure 6.
Tal y como se ha comentado anteriormente, y como se puede observar en las figuras, se ha previsto que el sistema descrito se duplique en lo que a la disposición de filtros (8) y cámaras (4-6) de entrada se refiere, presentando una configuración simétrica respecto de mi imaginario eje de simetría ortogonal a la dirección de avance del tren, en orden a que, mediante la duplicidad de mecanismos el sistema funcione óptimamente indistintamente de la dirección de avance del tren. En cuanto a los filtros (8) de cartucho, estos serán fácilmente intercambiables por el lateral sin necesidad de retirar las tapas superiores. As previously mentioned, and as can be seen in the figures, it is provided that the described system is duplicated in terms of the arrangement of filters (8) and input chambers (4-6), presenting a symmetrical configuration with respect to my imaginary axis of symmetry orthogonal to the direction of advance of the train, in order that, by the duplication of mechanisms, the system works optimally regardless of the direction of advance of the train. As for the cartridge filters (8), these will be easily interchangeable on the side without removing the upper covers.
Solo resta señalar que, en caso de tormentas de arena, la unidad puede cerrar la compuerta de aire fresco para evitar la acumulación de arena en el filtro, pudiéndose utilizar selectivamente el circuito de limpieza que menos se vea. afectado por dicha tormenta en función de la dirección del viento.
It only remains to point out that, in case of sandstorms, the unit can close the fresh air damper to avoid the accumulation of sand in the filter, being able to selectively use the least visible cleaning circuit. affected by said storm depending on the wind direction.
Claims
R E I V I N D I C A C I O N E S R E I V I N D I C A C I O N E S
Ia. ~ Sistema de filtración auto-limpiante para instalaciones de climatización ferroviarias, caracterizado porque en el mismo participa al menos una primera cámara (4) a la que accede el aire fresco del exterior a través de una boca de entrada (5). junto a la que se establece una segunda cámara (ó), en cuyo seno se establece un filtro (8) de cartucho, de manera que el aire en situación normal de filtrado entra a través de la boca de entrada (5), atraviesa la primera cámara (4) y accede a la segunda cámara (6), atravesando el filtro (8) por su superficie externa, quedando sobre dicha superficie externa el polvo o partículas de arena contenidas en el aire de entrada, habiéndose previsto que dicho filtro comunique interiormente con una cámara en la que un electraventílador impulsa dicho aire hacia el sistema de climatización al que se acopla el sistema de filtrado, con la particularidad de que en el seno del filtro (8) se establece un sensor de presión, que mide las variaciones de presión en el seno de dicho filtro, de manera que, un valor preestablecido de caída de presión, define la actuación del sistema de auto-limpiado, el cual se constituye a partir de un depósito ( 1) de aire comprimido, que se alimenta del propio sistema neumático del tren, que mediante las correspondientes electroválvulas y boquillas dífusoras inyecta aire a alta presión en el seno del filtro (8), reconduciendo el polvo y arena dispuestos sobre la superficie extema del mismo hacia la boca de entrada (5). I a . ~ Self-cleaning filtration system for railway air conditioning installations, characterized in that at least one first chamber (4) participates in it, which accesses fresh air from outside through an inlet (5). next to which a second chamber (or) is established, in which a cartridge filter (8) is established, so that the air in normal filtering situation enters through the inlet mouth (5), crosses the first chamber (4) and accesses the second chamber (6), through the filter (8) through its external surface, the dust or sand particles contained in the inlet air remaining on said external surface, said filter being provided to communicate internally with a chamber in which an electric fan drives said air towards the air conditioning system to which the filtering system is coupled, with the particularity that a pressure sensor is established within the filter (8), which measures the variations pressure within said filter, so that a preset pressure drop value defines the performance of the self-cleaning system, which is constituted from a reservoir (1) of compressed air, which is fed from pr Opium pneumatic train system, which by means of the corresponding solenoid valves and diffuser nozzles injects high-pressure air into the filter (8), redirecting the dust and sand arranged on the external surface of the filter towards the inlet mouth (5).
2a.- Sistema de filtración auto-limpiante para instalaciones de climatización ferroviarias, según reivindicación , caracterizado porque el depósito (11) de aire comprimido está asociado a al menos una boquilla (12) establecida en la primera cámara (4) en oposición a la boca de entrada de la misma. 2 .- System self-cleaning filter for installation of railway conditioning, according to claim, wherein the reservoir (11) compressed air is associated with at least one nozzle (12) established in the first chamber (4) opposed to the entrance of the same.
3a.- Sistema de filtración auto-limpiante para instalaciones de
climatización ferroviarias, según reivindicación , caracterizado porque incorpora dos filtros (8) con sus correspondientes conducciones y cámaras de flujo de aire y expulsión de residuos, presentando una configuración simétrica respecto de un imaginario eje de simetría ortogonal a la dirección de avance del tren. 3 .- System for self-cleaning filter installations Rail air conditioning, according to claim, characterized in that it incorporates two filters (8) with their corresponding ducts and chambers of air flow and waste expulsion, presenting a symmetrical configuration with respect to an imaginary axis of orthogonal symmetry to the direction of advance of the train.
4a.- Sistema de filtración auto-limpiante para instalaciones de climatización ferroviarias, según reivindicación Ia, caracterizado porque la boca de entrada (5) está asistida por una rejilla como primera etapa de filírado de las partículas gruesas. 4 .- System self-cleaning filter for air conditioning installations rail according to claim I, wherein the inlet (5) is assisted by a grid filírado first stage of coarse particles.
5a.- Sistema de filtración auto-limpiante para instalaciones de climatización ferroviarias, según reivindicación Ia, caracterizado porque entre la primera y segunda cámaras (4-6) se establece una compuerta
5 .- System self-cleaning filter for air conditioning installations rail according to claim I, characterized in that between the first and second chambers (4-6) a gate is set
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2014/070151 WO2015128514A1 (en) | 2014-02-27 | 2014-02-27 | Self-cleaning filtration system for railway air-conditioning facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2014/070151 WO2015128514A1 (en) | 2014-02-27 | 2014-02-27 | Self-cleaning filtration system for railway air-conditioning facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015128514A1 true WO2015128514A1 (en) | 2015-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2014/070151 WO2015128514A1 (en) | 2014-02-27 | 2014-02-27 | Self-cleaning filtration system for railway air-conditioning facilities |
Country Status (1)
| Country | Link |
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| WO (1) | WO2015128514A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247448A (en) * | 2016-08-09 | 2016-12-21 | 广州国灵空调有限公司 | Automatically cleaning defecator is imitated in a kind of air conditioner ventilating system junior middle school |
| CN112319530A (en) * | 2020-11-10 | 2021-02-05 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle |
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| US4445914A (en) * | 1982-05-28 | 1984-05-01 | York-Shipley, Inc. | Industrial dust filter with jet induced reverse air cleaning |
| DE19844441A1 (en) * | 1998-09-28 | 2000-04-06 | Lundin Filter Gmbh | Device and method for separating particles from a fluid |
| WO2009135464A1 (en) * | 2008-05-05 | 2009-11-12 | Mueller Bernd | Filter system for road tunnels or airport terminals |
| DE102011081739A1 (en) * | 2011-08-29 | 2013-02-28 | Siemens Aktiengesellschaft | Air conditioning device |
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| US4445914A (en) * | 1982-05-28 | 1984-05-01 | York-Shipley, Inc. | Industrial dust filter with jet induced reverse air cleaning |
| DE19844441A1 (en) * | 1998-09-28 | 2000-04-06 | Lundin Filter Gmbh | Device and method for separating particles from a fluid |
| WO2009135464A1 (en) * | 2008-05-05 | 2009-11-12 | Mueller Bernd | Filter system for road tunnels or airport terminals |
| DE102011081739A1 (en) * | 2011-08-29 | 2013-02-28 | Siemens Aktiengesellschaft | Air conditioning device |
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| CN106247448A (en) * | 2016-08-09 | 2016-12-21 | 广州国灵空调有限公司 | Automatically cleaning defecator is imitated in a kind of air conditioner ventilating system junior middle school |
| CN112319530A (en) * | 2020-11-10 | 2021-02-05 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle |
| CN112319530B (en) * | 2020-11-10 | 2022-03-25 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle |
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