• 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 chimney (12), which comprises an inner tube (18) which forms a rock channel (21), a surrounding insulating layer (20) and an outer casing (22). In addition, a cooling duct is included, which transports cooling air from below and upwards, the intermediate inner tube (18) and the outer casing (22), equipped with valve devices which control the temperature of the exhaust gas, for lowering the temperature in the outer casing.
    公开号:SE534083C2
    申请号:SE0950024
    申请日:2009-01-22
    公开日:2011-04-26
    发明作者:Paavo Valkama
    申请人:Paavo Valkama；
    IPC主号:
    专利说明:

    534 083 2 The application publication DE 2317972 describes a system adjacent to a chimney equipped with a cooling duct.
    The system includes a temperature sensor, an electrical regulator and an actuator as well as a flap valve in the upper end of the cooling duct. With the help of a temperature sensor it can be detected if the temperature on the outer surface of the cooling duct rises. On the basis of this, a regulator controls the opening of the flap valve, whereby the air flow rises in the cooling duct and the inner surface of the outer casing is only cooled when necessary. The problem with this system is the technical complexity of the devices and the need for external energy.
    The object of this invention is to provide a chimney in which, with simple arrangements, an efficient flow of cooling air is created when needed. This characterizing feature of the invention appears from the appended claims. The flow of cooling air is regulated with a valve, which gets its power from the pipe that forms the flue, most advantageously from the thermal expansion of a steel pipe.
    The cooling starts automatically only when needed, with the help of a very simple arrangement. The system works without electricity or other external force.
    In the following the invention is described in detail with reference to the attached figures, which show an application of the invention, according to which Figure 1a shows a chimney according to the invention in connection with a fireplace 30Figure 1b shows a chimney in section Figure 2 shows a chimney flap valve in closed position Figure 3 shows a chimney flap valve in open position Figure 4 shows the cooling function in a chimney 534 083 3 Figure 5 shows another application on a chimney in accordance with the invention A chimney according to the invention is suitable as a chimney for many different types of fireplaces. When it is desired that a flue extends straight upwards from a fireplace (here a fireplace 10, figure 1), a finished chimney 12 according to figure 1a is used, which chimney is generally a steel chimney enclosed by an insulating jacket. Despite the insulation, the outer temperature of the chimney rises high in an ordinary chimney, which makes it particularly difficult for a bushing 16 through a floor 15 or other such construction. The fire regulations require a remarkably low surface temperature on the chimney.
    To lower the temperature of the outer casing of a chimney, air is led into the chimney via a connection 14, which is described in more detail below. Even a small flow, which can easily be achieved with a natural circulation, cools the chimney's outer casing efficiently.
    According to Figure 1b, the chimney 12 comprises an inner pipe 18 which forms Z) a flue 21, an intermediate casing 19, an insulating layer 20 and an outer casing 22. In particular the outer temperature of the outer casing is decisive according to the fire regulations with regard to the required safety distances. The air duct 17 formed between the inner tube 18 and the intermediate housing 19 is a central factor, by means of which the surface temperature of the outer housing 2522 can be lowered. The connection 14 is 50 - 100 cm below the bushing 16. The connection 14 leads room air to the cooling duct 17, which is open to the outdoor air at the upper end of the chimney. In this case, the temperature of the intermediate casing 19 and further the outer casing 22 drops considerably when the fireplace is used, compared with a position without a cooling flow inside the chimney in the air duct 17 between the inner pipe 18 and the outer casing 19. The chimney upper end is protected so that no rainwater can enter the cooling duct. in stormy weather (not shown). 534 083 4 At the connection 14 there is a break in the insulating jacket 20, although the upper and lower part are firmly connected to each other with suitable fastening devices (not shown). The lower part has an upper end 27, against which a flange 26 presses when the inner tube 18 is cold, Figures 2 and 3. The valve is then closed. When the fireplace is used, the hot flue gases heat the inner tube 18, which expands heat a few millimeters along its length below the connection 14. The flange 26 lies against the intermediate housing 19, which in turn lies against the inner tube 18. The flange 26 thus rises from the end 27 due to The thermal expansion of the inner tube 18. At the same time, the holes 24 emerge, through which cooling air enters the cooling duct between the inner tube 18 and the intermediate housing 19, which air when heated causes a strong draft. The flange 26 has space to move between the ends.
    The insulating jacket 20 is heat expanded only to a very small extent.
    The connection 14 is in Figures 2 and 3 protected with the aesthetically designed protection 32, which has no technical significance as long as it does not impede the flow to the connection.
    According to Figure 4, the inner tube 18 causes heating due to under the influence of the hot flue gases flowing in the flue 21, an expansion of the inner pipe, which opens the valve in the connection 2514. In this case, cooling air flows to the cooling duct which encloses the inner pipe. The temperature of the outer casing remains low and it is possible to apply simpler fire protection regulations e.g. for safety distances. A flap valve or the like can of course also be placed in the upper end of the chimney, where the displacement caused by the thermal expansion is considerably larger than in the above-mentioned example. In any case, the upper end of the cooling duct must be particularly well protected, since in stormy weather rainwater falls horizontally. In addition to the chimney cap 30, the upper connection of the cooling duct 17 includes special protection devices (not shown). In Figure 5, the same reference numbers as above have been used for functionally the same kind of parts. Thus, cooling air is led from the connection 14 to the air duct 17, which has been formed between the inner tube 18 of steel and the intermediate casing 19. The insulating layer 20 has been placed between the intermediate casing 19 and the outer casing 22. The inner tube 1018 is here a very coherent and ordinary steel pipe.
    The intermediate housing 19 has here been made of galvanized sheet steel. The outer casing 22 which remains visible indoors is advantageously made of shiny stainless steel or of plastic-coated steel sheet. The connection 14 comprises one or more openings for directing air from the room to the air duct 17. Around the connection 14 there may be an aesthetic protection 32 as shown in figures 1a and 2.
    If necessary, spacers are used between the inner tube 18 and the intermediate housing 19 to keep the air duct shape intact (not shown). However, attention should be paid to the quality of the spacers, so that they do not cause noise due to the movements of thermal expansion. In particularly high chimneys, the casing attaches to the inner tube at such a height that the upper height of the inner tube to the end provides a sufficient thermal expansion distance. A flap valve is formed in the upper part of the chimney by means of a flange 26 which acts as a rain cover and the upper flange 27, where the flange 26 gets its driving force from the thermal expansion of the inner pipe. The upper flange 26 comprises a protection 25, which prevents rainwater from entering the air duct.
    Around the hot inner tube 18 and against this, a particularly thin thermal insulation layer can be used if desired, which construction means that the total thickness of the insulation layers is kept to a minimum.
    The diameter of the most common inner tubes is 100 - 150 mm. A standard insulation thickness is 50 - 60 mm and the air gap 10 - 15 mm. The total diameter of a chimney intended for ordinary indoor spaces, including insulation, will thus be 250 - 300 mm.
    权利要求:
    Claims (7)
    [1]
    A chimney (12) emanating from a room space via a bushing, which comprises an inner pipe (18) forming a flue 5 (21), a surrounding insulating layer (20), an outer casing (22) and a cooling duct (17) between the inner tube (18) and the outer casing (22) for lowering the temperature in the outer casing and valve devices (26, 27) which are controlled by the temperature of the flue gas for controlling the flow of the cooling air, characterized in that the said valve devices consist of a flap valve (26, 27) arranged to be operated by the thermal expansion of the inner tube (18).
    [2]
    A chimney according to claim 1, characterized in that the inner pipe (18) is a steel pipe. 15
    [3]
    A chimney according to claim 1 or 2, characterized in that the insulating layer (20) is placed between a special intermediate layer (19) and the outer layer (22).
    [4]
    A chimney according to any one of claims 1 to 3, characterized in that the cooling channel (17) is located between the insulating layer (20) and the inner tube (18).
    [5]
    A chimney according to any one of claims 1 to 4, characterized in that the flap valve (26, 27) is located in the lower end of the cooling duct (17).
    [6]
    A chimney according to any one of claims 1 to 4, characterized in that the flap valve (26, 27) is located in the upper end of the cooling duct (17).
    [7]
    A chimney according to any one of claims 1 to 4, characterized in that a connection (14) leading to the cooling duct (17) is located in a room space. 35
    类似技术:
    公开号 | 公开日 | 专利标题
    US3944136A|1976-03-16|Small building heating system
    EP2808543B1|2017-11-01|De-humidifying system
    CN102099636A|2011-06-15|System and method to reduce standby energy loss in a gas burning appliance
    SE534083C2|2011-04-26|Chimney with valve devices arranged to be operated by the inner tube's thermal expansion
    CA2260524A1|2000-04-13|Positive air flow ventilation system
    US4300527A|1981-11-17|Bi-loop heat recovery system
    RU2349844C1|2009-03-20|Outdoor boiler plant
    KR101326939B1|2013-11-11|Stovepipe for heat recovery
    JP4213709B2|2009-01-21|Indoor heating system
    RU169049U1|2017-03-02|Chimney - heat exchanger
    GB2447975A|2008-10-01|Flue liner having thermal energy recovery apparatus
    KR100885702B1|2009-02-26|Energy saving type hot wind heater for cultivation facilities and stalls
    RU2282111C1|2006-08-20|Heat-saving room ventilation device
    EP2426415B1|2015-12-30|Fireplace insert and fireplace stove with outer convection jacket with device for ventilation of over-door space
    KR20110001607U|2011-02-17|Fire Wood Boiler
    SE1251136A1|2014-03-01|Plant for combustion
    US10982850B2|2021-04-20|Flow measurement system
    SE518478C2|2002-10-15|Solid fuel boiler with heat exchange tubes, uses air to blow air through a grate, a nozzle in top of combustion region and the tubes
    CN102261738A|2011-11-30|Air heater
    RU67232U1|2007-10-10|OUTDOOR BOILER
    FI122931B|2012-09-14|Fan unit by a chimney
    RU113563U1|2012-02-20|OUTDOOR BOILER
    CN201032348Y|2008-03-05|Multifunctional coal, firewood two-purpose hot air furnace
    SE541301C2|2019-06-18|Air heat exchanger system for self-contained housing
    FI63825C|1983-08-10|ANORDNING VID UPPVAERMNINGSANLAEGGNING
    同族专利:
    公开号 | 公开日
    FI20085069A0|2008-01-29|
    FI20095031A|2009-07-30|
    SE0950024L|2009-07-30|
    FI20095031A0|2009-01-15|
    FI120987B|2010-05-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FI20105354A0|2010-04-07|2010-04-07|Hautala Ky R|An arrangement for controlling the operation of the flue duct valve|
    CN101812308B|2010-04-28|2013-10-16|曹志德|Oil shale reaction furnace|
    FI9582U1|2011-04-20|2012-02-28|Ventia Oy|The damper module|
    法律状态:
    2015-09-01| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    FI20085069A|FI20085069A0|2008-01-29|2008-01-29|Chimney|
    [返回顶部]