• 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 device for humidifying air in an air duct (1) with an inlet device for a liquid mist (10) and with an air guiding device arranged upstream of this inlet device in the flow direction (2). In order to provide advantageous moistening conditions, it is proposed that the air guiding device comprises at least one wing (7) extending transversely to the flow direction (2) and having an airfoil profile which is set opposite the flow direction (2).
    公开号:AT516173A4
    申请号:T50780/2014
    申请日:2014-10-29
    公开日:2016-03-15
    发明作者:
    申请人:Merlin Technology Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a device for air humidification in an air duct with an inlet device for a liquid mist and with an air guiding device arranged upstream of this inlet device in the flow direction (3).
    In order to achieve the most complete possible absorption of liquid mist in the air flow in devices of this type, it has already been proposed (WO2003 / 001120 A1) to construct the inlet device for the liquid mist from nozzles arranged in rows for atomizing the liquid and the nozzles arranged in rows Vorver¬lagern air guide within the air channel, which is constructed of turbulence wings in the form of right triangles, de¬ren shorter side of the catheter in the direction of the nozzle row and the longer Katheten¬seite are aligned perpendicular thereto. These turbulence wings are arranged adjustable relative to the air flow in the air duct so that air turbulence with a respective nozzle coaxial spin axis arise, so that the preferably spray nozzles as nozzles formed in the flow air droplets are entrained substantially in a helical air flow, which indeed within the air duct however, does not result in substantial evaporation of the liquid without the risk of droplet deposition.
    The invention is thus based on the object of designing an apparatus for air humidification within an air duct in such a way that extensive evaporation of the liquid mist introduced into the air flow can be calculated within a comparatively short longitudinal section of the air duct.
    Starting from a device of the type described above, the invention achieves the stated object in that the louver comprises at least one transverse to the flow direction wing with a wing profile, which is set against the flow direction.
    By providing at least one wing with an airfoil, on the one hand, the flow resistance caused by the air guiding device is kept small and, on the other hand, due to a corresponding blade adjustment on the profile trailing edge, a whirl separation extending over the blade length is achieved, so that the liquid mist of air swirls introduced into the air flow is detected, whose swirl axis is transverse to the flow direction. The entrained by these air vortices liquid droplets of the liquid mist are finely distributed due to the turbulence in the air flow to be humidified and entail the transverse to the air flow vortex axes a multiple of the given by the air duct conveyor line with the effect that a weitweitgehende evaporation of all liquid droplets within a comparatively short longitudinal section of the air duct can be ensured. Thus, a separation of the otherwise non-evaporated liquid droplets can be avoided and the efficiency of air humidification can be significantly improved.
    If the wing runs parallel to at least one row of discharge openings for the liquid mist aligned transversely to the flow direction, the liquid mist is advantageously introduced into the airflow distributed over the spin axis of the air vortex separating along the rear profile edge of the airfoil from the wing uniform distribution of the liquid mist supported by the vortex zone, in particular if between the wing and the row of the discharge openings, a corresponding distance perpendicular to the flow direction and perpendicular to the row of the discharge openings for the Wirbelausbildung is maintained. The row of discharge openings can also be replaced by a Austrag¬schlitz for the liquid mist, so that adjust with respect to the Eintra¬gung the liquid mist transverse to the flow direction comparable conditions.
    Although under certain conditions it may make sense to assign only one wing with a bearing surface profile to a row of the discharge openings for the liquid mist, in general particularly advantageous flow conditions result if the row of discharge openings is preceded by two vanes arranged symmetrically with respect to the direction of flow. The liquid mist introduced into the air flow is detected by the vortex formed on both sides of the opening row, detached from the profile trailing edge of the airfoil profiles, and intimately mixed with the air to be humidified within these turbulences, the ejection distance of the liquid mist from the arrangement the wing profiles depends. If the upper sides of the airfoil profiles which cause an acceleration of the flow velocity face the row of the discharge openings, the air vortices tearing off the airfoils require bundling of the introduced liquid mist, while in the case of an airfoil arrangement the underside facing the row of the discharge openings is one Analogous flow conditions can be found in a symmetrical to a discharge slot arrangement of the wings.
    If an inlet profile is provided in front of the row of discharge openings or the discharge slot, this results in particularly favorable flow conditions in the discharge area of the liquid mist, especially if a flow passage is created by this inflow profile in connection with the respectively associated wing of the louver.
    As already stated, vortex formation depends on the one hand on the wing profile and on the other hand on the angle of attack of the wing profile. In order to make it possible to adapt to the respective requirements, the angle of incidence of the wing or of the wings can be adjustable. For this purpose, the wings only have to be mounted in a swivel-adjustable manner about an axis parallel to the longitudinal axis of the wing.
    In the drawing, the subject invention is shown, for example. It shows
    1 shows a device according to the invention for air humidification in a schematic longitudinal section of the air duct perpendicular to the axis of the rows of discharge openings,
    2 shows a row of the discharge openings with a guide device comprising two wings with a wing profile in a section perpendicular to the row of outlet openings on a larger scale, wherein the flow conditions are schematically indicated by flow lines,
    Fig. 3 is a representation corresponding to FIG. 2 a design variant with in comparison to FIG. 2 different arrangement of the airfoils andFig. FIG. 4 is an illustration, corresponding to FIG. 2, of an air guiding device for a row of the discharge openings with only one airfoil profile.
    In order to humidify the air conveyed through an air duct 1 of usually rectangular cross-section, according to FIG. 1 an inlet device for a liquid mist with a plurality of parallel distribution pipes 3 running transversely to the flow direction 2 is provided for a liquid to be atomized Pipe length distributed, aligned in the flow direction 2 nozzles 4 are acted upon, which enter the liquid under a corresponding pressure in mist form in the air flow. The discharge openings 5 of these nozzles each form a row 6 extending transversely to the flow direction 2, to which air guiding devices are arranged upstream of wings 7 running parallel to the rows 6 of the discharge openings 5 and having an airfoil profile. These wings 7 can be adjusted about pivot axes 8 in their angle of attack with respect to the flow direction 2. On the side facing the vanes 7, the distribution pipes 3 are covered with an inflow profile 9, between which flow passages for the air flow are formed between the associated vanes 7 in order to achieve advantageous flow conditions in the injection area of the liquid mist.
    In FIG. 2, the flow conditions in the region of a row 6 of the discharge openings 5 for a liquid mist 10 are schematically indicated by flow lines. Due to the wing arrangement with an airfoil profile whose top side causing a flow acceleration faces the nozzles 4 or the inflow profile 9, flow vortices detach at the profile trailing edge, which cause bundling of the injected liquid mist 10. It can be seen that the swirl axes are essentially parallel to the profile trailing edge, ie transverse to the direction of flow 2, so that the liquid droplets captured by these fluidized beds are not only intimately mixed with the flow air but also, due to the swirling motion, transversely to the flow direction 2 This means that, within a comparatively short longitudinal section of the air duct 1, a path is made available for the liquid droplets within a comparatively short longitudinal section of the air duct 1 can, which is sufficient for a complete evaporation of the liquid droplets, especially since these vortex patterns ensure an intimate mixing of the liquid droplets with the air.
    According to the embodiment according to FIG. 3, in comparison to FIG. 2, the wings 7 are aligned with the underside of the profile against the row of nozzles or the inflow profile 9, which leads to a vortex shedding on the profile side facing away from the nozzle row. The sprayed liquid mist 10 is therefore auffächert over the air vortices, so that can be met by such a wing assembly compared to the wing assembly of FIG. 2 different requirements.
    From Fig. 4 it can be seen that under certain conditions, ei¬ne one-sided wing assembly may be useful. With the provided on one side of the Dü¬senanordnung wing 7 unsymmetrical conditions are achieved with respect to the entry of the Flüssig¬keitsnebels 10 in the air flow, which spielsweise in edge regions of the air duct 1 may be beneficial.
    Although it is basically possible to provide an air humidifying device according to the invention with only one row of nozzles, the arrangement of several rows of nozzles creates particularly advantageous construction conditions, not only with regard to the nozzle distribution over the cross section of the air channel 1, but also with respect to the metered dose of the quantity of liquid injected. In order to achieve a predetermined moisture content for the air flowing out of the air duct 1, an amount of liquid which is dependent on the moisture content of the air flowing into the air duct and is to be evaporated is required. The amount of liquid which can be injected via a row of nozzles depends on the fluid pressure with which the individual nozzles 4 are charged, given the design requirements. If only a small amount of liquid is required to achieve a predetermined moisture content of the air emerging from the air duct 1, this quantity of liquid can be introduced into the air duct via a row of nozzles, the amount of liquid being metered via the liquid pressure. If the liquid requirement exceeds the liquid quantity which can be introduced via a row of nozzles at maximum application pressure, a further row of nozzles can be supplied with liquid, wherein the minimum pressure required for a sufficiently fine nebulization of the liquid is started in both rows of nozzles in order to adjust the liquid pressure for the liquid as required to increase both rows of nozzles up to the maximum pressure before, to cover an additional liquid requirement, a further row of nozzles is connected at minimum pressure for all rows of nozzles now being used.
    Although, according to the illustrated embodiment, the liquid mist to be introduced into the air to be humidified is easily generated by atomizing the liquid by means of nozzles 14 to be pressurized by a corresponding pressure, the invention is by no means limited to such generation of liquid mist, since it is only important to enter a liquid mist in the air to be humidified. The generation of mist could therefore also be effected by an ultrasonic generator, wherein the introduction device must essentially comprise discharge openings, through which the liquid mist is introduced into the air duct 1. The rows 6 of such discharge openings 5 can also be replaced by discharge slots.
    权利要求:
    Claims (6)
    [1]
    1. Device for air humidification in an air duct (1) with an entry device for a liquid mist (10) and with an entry device in the direction of flow (2) upstream louver, characterized in that the louver at least one transversely to the flow direction (2) verlau ¬fenden wing (7) comprises a wing profile, which is employed opposite to the Strö¬mungsrichtung (2).
    [2]
    2. Apparatus according to claim 1, characterized in that the wing (7) parallel to at least one transversely to the flow direction (2) aligned row (6) of discharge openings (5) for the liquid mist (10) and extends in azur to the flow direction (2). and to the row (6) of the discharge openings (5) is arranged perpendicular distance from the row (6) of the discharge openings (5).
    [3]
    Device according to claim 1, characterized in that the wing (7) extends parallel to at least one discharge slot for the liquid mist (10) aligned transversely to the air duct (1) and is arranged in a direction perpendicular to the flow direction (2) and the discharge slot from the discharge slot ,
    [4]
    4. Apparatus according to claim 2 or 3, characterized in that zumin¬dest a row (6) of the discharge openings (5) or at least one discharge slot are two vor¬gelagert symmetrically arranged with respect to the flow direction (2) wings (7).
    [5]
    5. Device according to one of claims 2 to 4, characterized in that the row (6) of the discharge openings (5) or the discharge slot upstream of a profile (9) is mounted.
    [6]
    6. Device according to one of claims 1 to 5, characterized in that the angle of attack of the wing (7) or the wing (7) is adjustable.
    类似技术:
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    同族专利:
    公开号 | 公开日
    WO2016065384A1|2016-05-06|
    RU2663103C1|2018-08-01|
    EP3213001A1|2017-09-06|
    AT516173B1|2016-03-15|
    EP3213001B1|2018-06-06|
    US20170248334A1|2017-08-31|
    CA2965838A1|2016-05-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0251196A2|1986-06-25|1988-01-07|Kiesel, Vera|Air washer for humidifying and heating of air in air conditioning plants or the like|
    WO2003001120A1|2001-06-20|2003-01-03|Klingenburg Gmbh|Air humidifying device|US20180231335A1|2017-02-16|2018-08-16|Hs Marston Aerospace Limited|Flow guide for heat exchanger|US4913856A|1988-02-04|1990-04-03|Dri-Steem Humidifier Company|Humidifier system|
    US4980099A|1990-01-16|1990-12-25|The Babcock & Wilcox Company|Airfoil lance apparatus for homogeneous humidification and sorbent dispersion in a gas stream|
    SU1753198A1|1990-08-02|1992-08-07|Научно-исследовательский институт механики МГУ им.М.В.Ломоносова|Device for electrolyzing aerosol|
    IT1303661B1|1998-12-24|2001-02-21|Tecmeco S R L|WATER NEBULIZATION AIR CLEANER|
    法律状态:
    2020-08-15| MM01| Lapse because of not paying annual fees|Effective date: 20191029 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50780/2014A|AT516173B1|2014-10-29|2014-10-29|Device for air humidification in an air duct|ATA50780/2014A| AT516173B1|2014-10-29|2014-10-29|Device for air humidification in an air duct|
    RU2017118144A| RU2663103C1|2014-10-29|2015-10-28|Device for air humidification in air channel|
    CA2965838A| CA2965838A1|2014-10-29|2015-10-28|An apparatus for humidifying air in an air duct|
    EP15793687.3A| EP3213001B1|2014-10-29|2015-10-28|Apparatus for humidifying air in an air duct|
    PCT/AT2015/050270| WO2016065384A1|2014-10-29|2015-10-28|Apparatus for humidifying air in an air duct|
    US15/519,899| US20170248334A1|2014-10-29|2015-10-28|Apparatus for humidifying air in an air duct|
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