• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    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.
    公开号:ES2587073A1
    申请号:ES201690036
    申请日:2014-02-27
    公开日:2016-10-20
    发明作者:Felipe PEREZ ESTEBAN
    申请人:Knorr Bremse Espana SA；
    IPC主号:
    专利说明:

    SELF-CLEANING FILTRATION SYSTEM FOR RAIL AIR CONDITIONING FACILITIES

    D E S C R I P C I Ó N
     5

    OBJECT OF THE INVENTION

    The present invention relates to a self-cleaning filtration system, which has been specially designed to be implemented in 10 railway air conditioning installations.

    The object of the invention is to provide a self-cleaning filtration system, which thanks to its own nature allows minimizing the maintenance of this type of filtration systems, substantially increasing its efficiency and thus reducing maintenance costs.

    BACKGROUND OF THE INVENTION 20

    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 ... 25

    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 based filtering of 30
    bag filters

    Although this system works satisfactorily from the point of view of filtering, it presents a problem that focuses primarily on the fact that bag filters must be replaced every 5 times, which is expensive and frequent maintenance.

    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.

    Under these conditions, the maintenance or replacement of the bag filters must be performed every 10-15 days, with the consequent problems mentioned above. fifteen
    DESCRIPTION OF THE INVENTION

    The self-cleaning filtration system for railway air conditioning installations proposed by the invention 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 any type of maintenance of the order of six months to a year or even more. 25

    For this, two subsystems participate in the system of the invention; an air filtration system itself, and a filter cleaning and evacuation system for dust and filtered sand.
     30
    More specifically, the system is integrated into a housing in which a fresh air inlet port is defined externally, with its corresponding grille 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, the sand and dust being filtered through the own outer surface of the filter.

    Once filtered air is sucked by a fan and sent to the corresponding air conditioning equipment.
     fifteen
    From a differential pressure transducer established within the filter, the pressure variations through said filter are measured, 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. twenty

    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 thereof, 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 compressed air facing the inlet grill. 30

    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 works optimally regardless of the direction of advance of the 5 train .

    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. 10

    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.
     fifteen
    The system described in this way is connected to the air conditioning unit, and the entire assembly is perfectly integrated with its corresponding housings.

    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.

     25 DESCRIPTION OF THE DRAWINGS

    To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, this descriptive report is attached as an integral part of the
    same, a figure in which with illustrative and non-limiting nature, the following has been represented:

    Figure 1.- Shows a perspective view of a self-cleaning filtering 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. 10

    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.
     fifteen
    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 to say in the filtering process, have been represented.
     twenty
    Figures 5 and 6.- They show paths similar to those of Figure 3, but in which a series of arrows corresponding to the sequential air flow that occurs in the self-cleaning process are represented on the system.
     25
    PREFERRED EMBODIMENT OF THE INVENTION

    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 a team of 30
    conventional condensation (1) and evaporation equipment (2), and the self-cleaning filtering system itself (3) object of the present invention.

    Well, in the filtering system it is planned to participate a first chamber (4) to which fresh air from outside accesses through an inlet (5), assisted by the corresponding grid, which performs a first stage of filtration of coarse particles, next to which a second chamber (6) is established, which can be assisted by an electric intermediate door (7), in which a cartridge filter (8) is established, which extends to 10 all 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 to the second chamber (6), the filter (8) passing through its external surface, the dust or sand particles 15 contained in the inlet air remaining on said external surface, so that said filter communicates internally with a central chamber ( 9), through a pneumatic gate (10) that when closing it isolates 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.

    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 value of 25 saturation of the filter also preset, it indicates to the system the need for it to clean itself.

    Within the central chamber (9), it is planned to establish a reservoir (11) of compressed air, which is fed by itself 30
    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 they detach from the filter, going towards the first chamber (4) of 5 clean air inlet as shown in figure 5, so that once said waste is redirected to the first chamber (4) the gate (7) is closed and pressurized air is again impelled within the first chamber (4) through a nozzle (12) said waste being expelled through the inlet mouth (5) as shown in Figure 6. 10

     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 an imaginary axis of 15 orthogonal symmetry 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.

    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 cleaning circuit that is less affected by said storm depending on wind direction
    权利要求:
    Claims (1)
    [1]
    R E I V I N D I C A C I O N E S
    1st.- Self-cleaning filtration system for railway air conditioning installations, characterized in that at least one first chamber (4) participates in which fresh air from outside accesses through 5 through an inlet (5), next to which a second chamber (6) 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 outer surface, the dust or sand particles contained in the inlet air remaining on said outer surface 10, said filter having been provided 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 goes Riations of pressure within said filter, so that a preset value of pressure drop defines the performance of the self-cleaning system, which is constituted from a reservoir (11) of compressed air, which It feeds on the train's own pneumatic system, which by means of the corresponding solenoid valves and diffuser nozzles injects high pressure air into the sine 20 of the filter (8), redirecting the dust and sand arranged on the external surface of the same towards the inlet mouth ( 5).
    2nd.- Self-cleaning filtration system for railway air conditioning installations, according to claim 1, characterized in that the reservoir (11) of compressed air is associated with at least one nozzle (12) established in the first chamber (4) in opposition to the entrance of the same.
    3rd.- Self-cleaning filtration system for 30 installations
    Railway air conditioning, according to claim 1, 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. 5
    4th.- Self-cleaning filtration system for railway air conditioning installations, according to claim 1, characterized in that the inlet (5) is assisted by a grid as the first stage of filtering the coarse particles. 10
    5th.- Self-cleaning filtration system for railway air conditioning installations, according to claim 1, characterized in that an electric gate is established between the first and second chambers (4-6). fifteen
    类似技术:
    公开号 | 公开日 | 专利标题
    CN203898976U|2014-10-29|Intelligent breathing mask
    ES2587073B2|2017-05-17|SELF-CLEANING FILTRATION SYSTEM FOR RAIL AIR CONDITIONING FACILITIES
    WO2015128514A1|2015-09-03|Self-cleaning filtration system for railway air-conditioning facilities
    KR20150028466A|2015-03-16|Air circulating purifier
    CN105984787A|2016-10-05|Air-purifying elevator car roof
    CN106729786A|2017-05-31|Personnel's purification channel in GMP workshops
    KR20190000356U|2019-02-11|Air Supply System for Air Supply Pipe with Self-Cleaning Fucntion
    ES2721436T3|2019-07-31|Filtration system and method to clean the inlet air of a gas turbine
    US7934981B2|2011-05-03|Patient isolation module and use thereof
    JP2006003058A|2006-01-05|Smoking space with air cleaner
    JP2012006529A5|2013-08-08|
    JP2005201488A|2005-07-28|Zone purification system
    JP2008107056A|2008-05-08|Underfloor utilization air cleaning system
    CN201757470U|2011-03-09|Clean workroom
    CN207378972U|2018-05-18|The split type new wind turbine of unidirectionally stream with dehumidification function and with interior circularly purifying
    CN205517118U|2016-08-31|Air purification device for survival capsule
    JP2015014381A|2015-01-22|Air shower device
    KR101732405B1|2017-05-10|Platform exhaust system with trains wind
    CN104713175B|2017-07-21|Interlayer structure
    KR20190059105A|2019-05-30|unit for filtering and humidification having function of air cleaning and dust removal
    CN205505190U|2016-08-24|New trend and air purification system
    CN105444321B|2018-05-22|A kind of system for introducing and purifying for door-window opening realization air
    CN204717879U|2015-10-21|A kind of air cleaning unit with sterilizing viral function
    CN211926020U|2020-11-13|Epidemic prevention new trend system that disinfects
    PL70136Y1|2018-08-31|Device for air ventilation and/or filtration, in the first place, in industrial halls
    同族专利:
    公开号 | 公开日
    ES2587073B2|2017-05-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2677761C1|2017-12-27|2019-01-21|СиАрАрСи ЧАНЧУНЬ РЭЙЛВЭЙ ВИИКЛЗ КО., ЛТД.|Railway train and equipment kit for single air conditioning unit of railway train|
    法律状态:
    2017-05-17| FG2A| Definitive protection|Ref document number: 2587073 Country of ref document: ES Kind code of ref document: B2 Effective date: 20170517 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201690036A|ES2587073B2|2014-02-27|2014-02-27|SELF-CLEANING FILTRATION SYSTEM FOR RAIL AIR CONDITIONING FACILITIES|ES201690036A| ES2587073B2|2014-02-27|2014-02-27|SELF-CLEANING FILTRATION SYSTEM FOR RAIL AIR CONDITIONING FACILITIES|
    [返回顶部]