• 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 variable prechamber (2) according to the invention is manufactured as a sheet metal box of a rectangular cut. The box has an inlet connection on one side and is fastened to a distribution chamber on the other side and has an axis (9) on the upper wall in the middle of the antechamber (2) arranged so as to be in the immediate vicinity the upper wall and is mounted on the side walls of the pre-chamber (2), and on the axis (9) a flap (1) is suspended such that its free movement from the vertical to almost horizontal in the air outlet direction, and that the antechamber ( 2) at the air outlet side in the lower part and parallel to the lower wall has a gap (7) whose plate is fixed to the opposite vertical wall of the prechamber (2), and of the lower wall between 10% and 50% of the height of Prechamber (2) is spaced, wherein the gap (7) on the outlet side to the flange (10) and extends so far into the interior that it rotatable for a minimum distance movable flap (1) is spaced.
    公开号:AT513767A2
    申请号:T50854/2013
    申请日:2013-12-23
    公开日:2014-07-15
    发明作者:
    申请人:Hidria Imp Klima D O O；
    IPC主号:
    专利说明:

    -1-
    The invention relates to a variable prechamber with a flap which belongs to the field of mechanics of the fluids. It can be used in facilities for ventilation, heating and cooling of rooms. The variable pre-chamber opens certain spaces due to the pressure or. Flow difference. The flap is self-regulating, so it needs no regulation. The variable prechamber in room ventilation, heating and cooling equipment is installed between a supply duct and a distribution chamber. The distribution chamber consists of several spaces, which, depending on the opening of the flap, direct the air to a slot passage or to another Luftverteilelement. The variable pre-chamber with flap can also be connected to another distribution element and thus ensure an even distribution of the air or another fluid.
    The construction of a variable prechamber of Trox is well known. This has arranged the variable pre-chamber on a only two spaces having slot passage. With an initial setting of the weights on the flap axis, the opening regime of the second gap is determined if it exceeds a sufficient pressure or flow difference. This solution is characterized in that it has a free opening on the pre-chamber, which is guided on a whole row of the slot passage, except in the case of a single-row slot passage, wherein the opening is guided on the central segment of the slot. The flap axis transmits a torque that changes by a lever having a weight such that the flow rate at which the second gap begins to open, is determined.
    The disadvantage of such pre-chambers is the complexity of the preparation and the required presetting to ensure accurate operation.
    The underlying problem for developing such a variable element was to ensure a suitable range in various temperature and flow regimes. The focus is on automatic operation without later determining the appropriate operating point for accurate operation.
    The above problem is optimally solved by the present invention in that it was already planned at the beginning so that it provides for a maximum flow at a minimum flow, which is allowed by the surface of the Austrittsöffhung, but not too large pressure drop on the distribution element , is conditional. 2/12 -2-
    In the following, an exemplary embodiment of the invention illustrated in the drawings is explained. Show it:
    FIG. 1 shows a side section of the variable pre-chamber according to the first exemplary embodiment,
    FIG. 2: a projection of the variable pre-chamber according to the first exemplary embodiment,
    3 shows a side section of the variable pre-chamber according to the second exemplary embodiment with a free space above,
    FIG. 4 shows the variable pre-chamber attached to a distribution chamber,
    FIG. 5 shows the variable pre-chamber attached to a distribution chamber with a mask or a passage.
    The inventive variable pre-chamber according to the first embodiment of Figures 1 and 2 is made as a metal box of a rectangular section. The box has on one side a connecting piece 3 for the supply air 19 and on the other, air outlet side, a flange 10 for attachment to a distribution chamber 11. The opposite walls of the prechamber 2 are thus parallel, while the adjacent ones are perpendicular. Approximately in the middle of the prechamber 2 in the direction of air on the upper wall, an axis 9 is arranged such that it is in the immediate vicinity of the upper wall and is mounted on the side walls of the pre-chamber 2. On the axis 9, a flap 1 is suspended such that its free movement is the angle 20, that is, approximately from the vertical, which is determined by the weight of the weight of the flap 1, almost to the horizontal in the air outlet direction through the dynamic air pressure is determined. The depth of the flap 1 extends from the upper wall of the prechamber 2 to a distance between 10% and 50% of the lower wall of the prechamber second
    The pre-chamber 2 according to the invention has at the air outlet side in the lower part of a gap 7, which forms the opening 4.
    The intermediate space 7 is parallel to the lower wall of the prechamber 2 or at an angle of up to 3 ° thereto, and rises from the flange 10 in the direction of the interior of the prechamber 2.
    The non-parallelism of the gap 7 serves to better seal between the flap 1 and the gap 7 and also to avoid the movement of the flap in a wrong direction and thus the possibility of sticking at the edge of the first gap 7. The 3/12 -3-
    Gap 7 in the embodiment is formed as a metal plate which is fixed to the opposite vertical walls of the pre-chamber 2. The gap 7 is spaced from the bottom wall between 10% and 50% of the height of the prechamber 2. The gap 7 extends on the exit side to the flange 10 and far enough into the interior that it is spaced for a minimum distance from the rotatable movable flap 1. The prechamber from the exemplary embodiment and from FIGS. 1 and 2 has a second intermediate space 8, which forms the opening 6. The second gap 8 is located above the first gap 7 and parallel to it and is spaced from the lower wall between 20% and 60% of the height of the pre-chamber 2. The intermediate space 8 extends on the outlet side to the flange 10 and far into the interior, that it is at a minimum distance from the rotatable movable flap 1 or the flap 2 is not hindered in their circular motion. The pre-chamber according to the invention may have one or more intermediate spaces.
    The variable pre-chamber of the invention is an element for distributing a fluid, preferably air, and for regulating air flow in ventilation systems. The working principle is based on a deflection of the flap 1 by a certain angle 20 at a certain flow or a pressure change through the variable antechamber. The dead weight of the flap 1 determines at which pressure difference the next opening 5 bounded by the first 7 and the second gap 7 is inserted, thus allowing the air flow to be distributed to the next opening 5 and further to the third opening 6, avoiding that the pressure drop exceeds a certain limit. The concept provides a constant possible air bubbles at the exit from the distribution chamber 11 ready. It is intended that the vertical velocity profile be as constant as possible, regardless of the flow rate change and the temperature conditions of the air through a passage 17. The horizontal velocity profile is determined by the arrangement of the spaces 15, 16 in the distribution chamber 11.
    As the flap moves, it begins to open the second opening 5, allowing the air to escape through the second opening. The number of gaps 7, 8 may be greater, the only limitation is the construction or in the space for fixing the gaps 7, 8, which are curved in the embodiment and riveted to the housing of the prechamber 2. The section of the openings 4, 5, 6 is designed so that they align the air to the next 4/12 -4- opening at a certain flow or at a certain pressure difference, thus relieving the first free opening 4. If the flow exceeds this limit, opens the next opening 5, which is bounded by the gap 7 and the gap 8. If the flow rate continues to increase, the third opening 6 is also used.
    By the weight of the flap 1 is determined at which flow the flap 1 will deflect by a certain angle 20. The lighter the flap 1 is, the more sensitive it is to flow changes and is the better for smaller flows or smaller pressure differences between the nozzle 3 and the outlet opening at the distribution chamber 12, 13, 14 suitable. The heavier the flap 1, the higher the flow required or the greater the pressure difference must be in order to move them by the same angle 20.
    With regard to the angle 20 of the flap 1 at a certain pressure difference, the interstices 7, 8 in the housing of the variable prechamber 2, which is preferably made of sheet steel, arranged. The pre-chamber is designed so that it allows a flow through the same even at minimum flow. This is made possible by the first free opening 4, which is not in the periphery of the flap 1 and is separated from the second opening by the first gap 7. The second opening 5 and the third opening 6 are separated from each other with the second gap 8, which is like the first gap 7 made of sheet steel and riveted to the housing of the variable prechamber 2, separated.
    The first gap 7 in the variable pre-chamber is slightly angled, and preferably between 1 and 3 ° with respect to the lower wall of the housing of the prechamber 2, with the intention of achieving a better seal and also the movement of the flap into the wrong one Direction and thus the possibility of stuttering at the edge of the first gap 7, to avoid.
    When fixing the gaps 7, 8 with the riveting method must be taken to ensure that the steel sheet is curved so that the attachment point is remote from the direction of movement of the flap 1, otherwise the flap 1 would lock, which would lead to inaccurate operation. If the flap 1 at an increased flow reaches the third opening 6, the upper limit of the flow is not limited yet. The flap 1 moves only at a higher angle and allows the free air flow. Theoretically, the maximum angle of the flap 1 can be 90 °. The number of spaces, as in our example the first space 7 and the second space 8, is also not limited, it depends on the 5/12 -5 available mounting space. The separation of the gaps can be arbitrarily chosen during construction depending on the desired regime of the opening of the individual openings 5, 6.
    In the second embodiment of Figure 3, the free opening is on the upper side of the variable chamber. Approximately in the middle of the pre-chamber 2, an axis 9 is arranged in the direction of air flow under the first gap 7 such that it is located in the immediate vicinity of the inner edge of the first gap 7 and is mounted on the side walls of the pre-chamber 2. On the axis 9, a flap 1 is suspended such that its free movement is the angle 20, which is approximately from the vertical, which is determined by the weight of the weight of the flap 1, almost to the horizontal in the air outlet direction, through the dynamic air pressure is determined. The depth of the flap 1 extends from the attachment of the gap 7, which may be located between 10% and 50% of the upper wall of the pre-chamber 2 to the minimum distance from the lower wall of the pre-chamber 2. The pre-chamber 2 according to this embodiment, has at the air outlet side in the lower part of a gap 7, which forms the opening 4. The space 7 is parallel to the lower wall of the pre-chamber 2. The space 7 in the embodiment is formed by a metal plate which is fixed to the opposite vertical wall of the pre-chamber 2. The space 7 is spaced from the top wall between 10% and 50% of the height of the pre-chamber 2. The gap 7 extends on the exit side to the flange 10 and far enough into the interior that it is spaced for a minimum distance from the rotatable movable flap 1. The pre-chamber has a second intermediate space 8 which forms the opening 5 with the lower wall of the housing of the prechamber 2 and the opening 6 on the upper side of the intermediate space 8. The second gap 8 is parallel to the gap 7 and is spaced from the lower wall between 10% and 40% of the height of the pre-chamber 2. The gap 8 extends at the outlet side to the flange 10 and far into the interior, that it is spaced by a minimum distance from the rotatable movable flap 1 and the flap 1 does not interfere with their circular motion. The pre-chamber according to the invention can have one or more intermediate spaces, which are opened due to the pressure difference through the flap 1.
    The flap 1 is used in the construction according to the invention at a slot passage. The task of the passage is to maintain a sufficient flow of air from the slot passage at various flow and temperature regimes. The function of the 6/12 -6 variable chamber is to increase or decrease the exit cut at the slot passage to ensure a suitable exit velocity and hence a suitable reach.
    In a slot passage in which the distribution chamber 11, with the variable antechamber attached to the mounting flange 10, the opening of the openings 12, 13, 14 acts on the enlargement of the section of the passage slot, preferably also the rows of the passage, as well as on a more predictable Velocity profile from the passage at different flow rates. This allows such a distribution element to have a more constant range regardless of the flow regime flowing therethrough. However, the flow is limited to the top because it causes greater noise.
    In the construction of the variable prechamber, the opening regimes do not need to be additionally set, since they have already been determined in advance by the pitch of the gaps 7, 8. If a different opening ratio is desired, a flap 1 with a different weight can be used or the gaps 7, 8 can be arranged differently in the planning.
    The pre-chamber in combination with the arrangement of the intermediate spaces 15, 16 in the distribution chamber 11, can open individual segments of the exit slot or the openings 12, 13, 14. The opening of the individual openings 5, 6 in the variable pre-chamber allows a later distribution of the air flow in the distribution chamber 11 or in another distribution element. In the distribution chamber 11 are also located inside the intermediate spaces 15, 16, which are used for air distribution from the chamber 11 and are connected to the spaces in the variable chamber. The distribution chamber 11 and the intermediate spaces 15, 16 are preferably made of sheet steel. But it could also be used another material, which also applies to the entire construction of the variable pre-chamber and the distribution chamber 11. 7/12
    权利要求:
    Claims (8)
    [1]
    1. Variable prechamber, which is made as a sheet metal box of a rectangular section, each with a horizontal upper and lower wall and two vertical side walls and on one side has a connecting piece for the supply air and on the other side, the air outlet side, on a Distributed chamber is fixed, characterized in that the pre-chamber (2) at the air outlet side has a gap (7) which forms an opening (4) with the upper or lower wall, and in at least one over the remainder of the height of the pre-chamber ( 2) extending opening (5, 6) on an axis (9) a flap (1) is suspended such that its free movement is an angle (20) which is approximately from the vertical, by the weight of the weight of the flap ( 1) is determined to be almost defined in the horizontal direction in the air outlet direction, which is determined by the dynamic air pressure, wherein the axis (9) on the side walls of Vorkam (2) is mounted and the depth of the flap (1) from the axis (9) extends to a minimum distance from the lower limit of over the remainder of the height of the pre-chamber (2) extending opening (5, 6) ,
    [2]
    2. Variable pre-chamber according to claim 1, characterized in that the axis (9) is arranged approximately in the middle of the prechamber (2) on the upper wall such that it is in the immediate vicinity of the upper wall, and that the intermediate space ( 7) has a plate fixed to both opposite vertical walls of the prechamber (2), and is spaced from the bottom wall by between 10% and 50% of the height of the prechamber (2), with the gap (7) on the exit side up to a flange (10) provided for attachment to the distribution chamber and extending so far into the interior that it is at a minimum distance from the rotatable movable flap (1).
    [3]
    3. Variable prechamber according to claim 2, characterized in that the intermediate space (7) parallel to the lower wall of the prechamber (2) or at an angle up to 3 ° thereto, and the flange (10) towards the interior of the prechamber (2 ) increases.
    [4]
    4. Variable pre-chamber according to one of claims 1 to 3, characterized in that the depth of the flap (1) from the upper wall of the pre-chamber (2) to a distance between 10% and 50% of the lower wall of the prechamber (2) extends.
    [5]
    5. Variable pre-chamber according to one of claims 1 to 4, characterized in that above the first intermediate space (7) further intermediate spaces (8) are located. 8/12 -8-
    [6]
    6. variable prechamber according to claim 1, characterized in that the intermediate space (7) is parallel to the lower wall of the prechamber (2) and is spaced from the upper wall between 10% and 50% of the height of the prechamber (2) and that the Axis (9) under the space (7) is arranged so that it is in the immediate vicinity of the space (7), wherein the depth of the flap (1) from the attachment of the gap (7), the between 10% and 50% of the upper wall of the prechamber (2) can be arranged to the minimum distance from the lower wall of the prechamber (2) extends.
    [7]
    7. variable pre-chamber according to claim 6, characterized in that it comprises a second intermediate space (8) with the lower wall of the housing of the prechamber (2) has an opening (5) and on the upper side of the intermediate space (8) has an opening (6), wherein the second space (8) is spaced from the bottom wall by between 10% and 40% of the height of the pre-chamber (2), and the space (8) is at the exit side to one for attachment to the distribution chamber provided flange (10) and extends so far into the interior that it is spaced by a minimum distance from the rotatable movable flap (1) so that it does not hinder the flap (1) in their circular motion.
    [8]
    8. Variable pre-chamber according to claim 7, characterized in that there are further intermediate spaces (8) on its lower side. 9 / f 2
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    同族专利:
    公开号 | 公开日
    FR3000540A1|2014-07-04|
    AT513767B1|2018-03-15|
    AT513767A3|2017-09-15|
    SI24261A|2014-06-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2017202071A1|2016-05-23|2017-11-30|珠海格力电器股份有限公司|Air conditioner|
    WO2018014549A1|2016-07-19|2018-01-25|珠海格力电器股份有限公司|Air conditioner|DE2842924C2|1978-10-02|1986-11-06|Gebrüder Trox, GmbH, 4133 Neukirchen-Vluyn|Ceiling air outlet for air conditioners|EP3772624A1|2019-08-05|2021-02-10|Madel Air Technical Diffusion, S.A.|Dual plenum for air distribution|
    法律状态:
    2019-08-15| MM01| Lapse because of not paying annual fees|Effective date: 20181223 |
    优先权:
    申请号 | 申请日 | 专利标题
    SI201200388A|SI24261A|2012-12-27|2012-12-27|Variable pre-chamber|
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