• 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 flue gas filter system comprising a filter housing (21) with side walls (22) defining an interior, and filter elements, which are arranged in the interior of the filter housing (21). A capillary element (42) is provided between the side walls (22) and the filter elements.
    公开号:CH711185A2
    申请号:CH00846/15
    申请日:2015-06-12
    公开日:2016-12-15
    发明作者:Frick Adolf；Frick Arnold
    申请人:Frick Adolf；
    IPC主号:
    专利说明:

    The invention relates to a flue gas filter system, according to the preamble of claim 1.
    In order to prevent that accumulates in the combustion of particulate matter in large quantities in the environment, flue gas filter systems are provided.
    From GB 650 852 a flue gas filter system is known, comprising a filter housing with side walls defining an interior, and a filter element which is arranged in the interior of the filter housing.
    The combustion material, e.g. Wood waste or wood chips, often has a high water content, so that in the resulting in the combustion flue gas also a high water content is present. The flue gas filter system for filtering the flue gas is usually outside a building and is thus exposed to the local temperatures, especially in winter.
    If the flue gas filter system has a temperature of less than 60 ° Celsius, the water in the flue gas condenses and settles on the inside of the side walls. This precipitated water binds fine dust located in the interior and cures it during the next drying process. The hardened fine dust at least partially closes the filter element and can be removed from the filter housing - if at all - only with difficulty.
    In order to prevent condensation in flue gas filter systems, it is known to heat the flue gas filter system by means of a heater, so that the temperature in the flue gas filter system never falls below 60 ° Celsius.
    A disadvantage of this known solution is that the heating requires additional energy and especially in winter, the energy demand is enormously high to keep the temperature of the flue gas filter system at the desired level. A drop in the temperature in the flue gas filter system and thus the need to heat the flue gas filter system, sometimes occurs even in short interruptions of the combustion process. A drop in temperature can also occur, for example, when the combustion furnace is operated under partial load.
    In order to reduce the heating demand for flue gas filter systems to prevent condensation, known flue gas filter systems are also provided with an external insulation, which surrounds the filter housing of the flue gas filter system mostly completely.
    A disadvantage of this known solution is that the inside of the filter housing can continue to cool so that condensation occurs in the filter housing and thus the flue gas filter system still has to be separately heated.
    The object of the present invention is thus to provide a flue gas filter system which does not have the aforementioned disadvantages and in particular requires no or only a small demand for separately guided heating energy compared to the already known flue gas filter systems.
    The object is solved by the features of the independent claim. Advantageous developments are set forth in the figures and in the dependent claims.
    According to the invention, at least one capillary element is provided between the side walls and the at least one filter element.
    The at least one capillary takes on any water vapor present in the flue gas, water or condensate occurring on. As the temperature increases, the water in the at least one capillary element evaporates again and is removed by the flue gas leaving the flue gas filter system.
    The at least one capillary is advantageously directly on the inside or with an air gap, i. E. facing the interior, arranged on the side walls.
    The created with the at least one capillary insulation extends the period until the side walls of the filter housing, which are usually made of steel, cool down so that condensate can form in the filter housing. Even when operating the combustion furnace under partial load or when it is shut down for a short period of time, the internal insulation reduces condensation of water vapor in the filter housing. In addition, the risk of condensation forming at each starting phase of the incinerator is reduced.
    The situations in which the flue gas filter system with a separate heater must be brought to a temperature of 60 ° C, reduce significantly compared to the known from the prior art designs. If the flue gas filter system has to be heated with a separate heater, the required temperatures are quickly reached due to the inside of the filter housing arranged at least one capillary, so that the energy required for any heating of the flue gas filter system compared to the previous solutions is much lower.
    Does the flue gas filter system to a residual heat recovery or residual heat recovery device, is achieved by the elimination or at least by the low energy requirements for heating the flue gas filter system much earlier, the return on investment (Rol = return of investment).
    At extremely low outside temperatures, the inventive flue gas filter system can be additionally provided with an external insulation.
    Preferably, the capillarity of the at least one capillary element is more than 50 vol .-%, so that it can absorb a large amount of water or condensation if necessary. Advantageously, the capillarity of the at least one capillary element is more than 60% by volume, with which an even greater absorption capacity is available.
    Preferably, the at least one capillary is plate-shaped and has a length, a width which is less than or equal to the length, and a thickness. A trained as a capillary capillary has particularly advantageous properties for use in a flue gas filter system and is easy to manufacture or integrated into the flue gas filter system.
    Preferably, the thickness corresponds to 0.05 times to 0.13 times the width. Such a capillary element can be produced with sufficient strength, so that also flue gas filter system can be realized in large dimensions.
    Advantageously, the thickness corresponds to 0.08 times to 0.11 times the width of the at least one plate-shaped capillary element, whereby this is optimally produced in particular with regard to its strength with sufficient usability.
    The at least one capillary is made of a material that is sufficiently resistant to heat to withstand the occurring in the flue gas filter system temperatures of the flue gas.
    Preferably, the at least one capillary is at least partially made of calcium silicate (CaSiO3), since this material has advantageous material properties for the present purpose. Particularly advantageously, the entire capillary element is made of calcium silicate.
    Further advantages, features and details of the invention will become apparent from the following description in which embodiments of the invention are described with reference to the drawings.
    The list of reference numerals as well as the technical content of the claims and figures are part of the disclosure. The figures are described coherently and comprehensively. The same reference symbols denote the same components, reference symbols with different indices indicate functionally identical or similar components.
    It shows:<Tb> FIG. 1 <SEP> a flue gas filter system according to the invention in a side view,<Tb> FIG. 2 <SEP> the flue gas filter system in a section along the line II-II in Fig. 1,<Tb> FIG. 3 <SEP> an insulating insert of the flue gas filter system in plan view,<Tb> FIG. 4 <SEP> the insulation insert acc. Fig. 3 in a side view, and<Tb> FIG. 5 <SEP> the flue gas filter system acc. Fig. 1 in an exploded view.
    The flue gas filter system 11 shown in FIGS. 1, 2 and 5 with residual heat recovery comprises a filter housing 21 which is arranged on a stator structure 31. The bottom portion 33 of the filter housing 21 has a funnel-shaped configuration with a dust outlet 34. At the dust outlet 34 is e.g. a transport container 36, e.g. a so-called big-bag, connected, which can be decoupled from the flue gas filter system 11.
    In the illustrated embodiment, the filter housing 21 has a connecting piece 26 to which an exhaust pipe of a combustion furnace (not shown here) is connected, and two outlet nozzle 27, through which the filtered flue gas can escape into the environment.
    The filter housing 21 made of steel has four side walls 22 which define an interior 23. In the - in this embodiment - square interior 23 of the filter housing 21 a plurality of flat bag filters as filter elements 24 and two heat exchanger elements 25 are arranged.
    Are the filter elements 24 covered with fine dust they are dedusted, for example by means of a compressed air shock, wherein the dissolved particulate matter through dust outlet 34 in the bottom portion 33 of the filter housing 21 into the transport container 36 and thus the fine dust collected therein can be safely disposed of.
    Between the side walls 22 and the filter elements 24 an insulation 41 is provided on the inside of each side wall. The insulation 41 is formed by a plurality of plate-shaped capillary elements 42 (capillary plates) each having a length L, a width B which is smaller than the length L, and a thickness D (FIGS. 3 and 4). The thickness D corresponds to 0.05 times to 0.13 times, advantageously 0.08 times to 0.11 times, the width B. Each plate-shaped capillary element 42 has the same dimensions. Four capillary elements 42 are assembled into a frame 43. As can be seen in particular from FIG. 5, a plurality of frames 43 are arranged one above the other, so that over the entire height H of the side walls 22 of the filter housing 21 they are provided on the inside with the insulation 41.
    Each capillary element 42 is made of calcium silicate. The capillarity of the capillary elements 42 is more than 50 vol .-%. Particularly advantageously, the capillarity of the capillary elements 42 is more than 60% by volume. The capillary elements 42 absorb moisture in the filter housing 21 and release it again as the temperature increases.
    The individual parts of the filter housing are screwed together (see also Fig. 5) and not - as usual in the art usually - welded together. The glands can be solved if necessary, and thus the filter housing can be opened to replace, for example, defective elements of the flue gas filter system 11 or existing elements by elements of the newer generation. Thus, the flue gas filter system 11 has a much longer service life compared to previous systems. Also, the flue gas filter system 11 can be kept continuously on the latest technical standard.
    LIST OF REFERENCE NUMBERS
    [0035]<Tb> 11 <September> flue gas filter system<Tb> <September><Tb> 21 <September> filter housing<Tb> 22 <September> sidewall<Tb> 23 <September> Interior<Tb> 24 <September> filter element<Tb> 25 <September> heat exchanger element<Tb> 26 <September> spigot<Tb> 27 <September> outlet connection<Tb> <September><Tb> 31 <September> Stands construction<Tb> <September><tb> 33 <SEP> Ground section v. 21<Tb> 34 <September> dust outlet<Tb> <September><Tb> 36 <September> Transport containers<Tb> <September><Tb> 41 <September> insulation<Tb> 42 <September> capillary<Tb> 43 <September> Frames<Tb> <September><tb> H <SEP> Height v. 21<Tb> <September><tb> B <SEP> width v. 42<tb> D <SEP> Thickness v. 42<tb> L <SEP> length v. 42
    权利要求:
    Claims (5)
    [1]
    A flue gas filter system comprising a filter housing (21) having side walls (22) defining an interior space (23) and at least one filter element (24) disposed in the interior space (23) of the filter housing (21) in that at least one capillary element (42) is provided between the side walls (22) and the at least one filter element (24).
    [2]
    2. flue gas filter system according to claim 1, characterized in that the capillarity of the at least one capillary element (42) more than 50 vol .-%, advantageously more than 60 vol .-%, is.
    [3]
    3. flue gas filter system according to claim 1 or 2, characterized in that the at least one capillary element (42) is plate-shaped and has a length (L), a width (B) which is less than or equal to the length (L), and a thickness (D).
    [4]
    4. flue gas filter system according to claim 3, characterized in that the thickness (D) 0.05 times to 0.13 times, advantageously 0.08 times to 0.11 times, the width (B)
    [5]
    5. flue gas filter system according to one of claims 1 to 4, characterized in that the insulation (41) is at least partially made of calcium silicate.
    类似技术:
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    同族专利:
    公开号 | 公开日
    CH711185B1|2019-07-15|
    AT517269A2|2016-12-15|
    AT517269A3|2017-11-15|
    AT517269B1|2017-11-15|
    DE102016210054A1|2016-12-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB650852A|1948-08-10|1951-03-07|Walter Louis Fleisher|Improvements in or relating to air conditioning apparatus|
    JPH0523542A|1991-07-22|1993-02-02|Daikin Ind Ltd|Harmful gas removing apparatus|
    CN201560207U|2010-03-03|2010-08-25|无锡金龙石化冶金设备制造有限公司|Blast furnace blast-dehumidification device utilizing waste heat of flue gas from hot blast furnace|
    CN204275745U|2014-11-26|2015-04-22|上海禾益净化设备制造有限公司|The multistage dehumidifying filter of integral type ammonia|
    法律状态:
    2020-10-15| PCAR| Change of the address of the representative|Free format text: NEW ADDRESS: ROTENBODENSTRASSE 12, 9497 TRIESENBERG (LI) |
    优先权:
    申请号 | 申请日 | 专利标题
    CH00846/15A|CH711185B1|2015-06-12|2015-06-12|Flue gas filter system.|CH00846/15A| CH711185B1|2015-06-12|2015-06-12|Flue gas filter system.|
    ATA278/2016A| AT517269B1|2015-06-12|2016-06-07|Flue gas filter system|
    DE102016210054.8A| DE102016210054A1|2015-06-12|2016-06-08|FUMES FILTER SYSTEM|
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