• 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:
    Method and arrangement for regulating a diffuser. The diffuser (50) is located in connection with the ceiling (12) in the space (10) to be ventilated and comprises an air duct (51), in connection with which control means (52, 60, 61) are provided, by means of which the air flow (LA, LB) flowing out of the air duct (51) in the space (10) to be ventilated is directed in the direction along the ceiling (12) out of the diffuser (50). The temperature caused by an external heat source with respect to the heating and cooling system in the space (10) to be ventilated is measured with at least one temperature sensor (20), the measuring signal of which is led to a control unit (30) which controls an actuator (40). The operating means (40) controls a control means (53a, 53b, 55, 57, 60) mounted in connection with the air duct (51) of the diffuser (50), with which the throwing figure of the air flow (LA, LB) flowing out from the diffuser (50) to the space (10) to be ventilated is regulated to become asymmetrical on the basis of the measured temperature. (FIG. 1)
    公开号:SE1151006A1
    申请号:SE1151006
    申请日:2011-10-28
    公开日:2012-05-02
    发明作者:Pekka Vuorimaa；Risto Kosonen；Panu Mustakallio；Mika Ruponen
    申请人:Halton Oy；
    IPC主号:
    专利说明:

    the outlet channel transverse shaft and a flap pivotally arranged on the shaft. The air control element regulates the direction of the supply air flow flowing from the supply air device into the room space to be ventilated in such a way that the supply air flow is controlled straight down or straight to the side.
    In practice, the scattering of the jet from the diffuser is also affected by convection currents caused by external heat sources in relation to the heating and cooling system in the room space to be ventilated.
    Such external sources of heat in relation to the heating and cooling system in the room space to be ventilated consist, for example, of people in the room space and sunlight radiating in through windows in the room space. In particular, one-sided friend loads in the room space to be ventilated can swing the supply air flow from the diffuser so that it becomes one-sided. This becomes a particular problem in situations where the exhaust air devices in the air conditioning system are located on the opposite side of the room space to be ventilated in relation to the wall with windows in the room space.
    In such a case, the convection flow at the window can swing the supply air jet from the diffuser directly to the exhaust air device. The fresh supply air is thus not evenly distributed in the room space to be ventilated, which leads to the efficiency of the ventilation in the room space to be ventilated decreasing and in a cooling situation a temperature gradient is formed between a window zone and a corridor zone.
    SUMMARY OF THE INVENTION The essential features of the method according to the invention appear from the characterizing part of claim 1.
    The essential features of the arrangement according to the invention appear from the characterizing part of claim 4. In the solution according to the invention, the temperature of the inner surface of a window is measured in a space to be ventilated with a temperature sensor arranged on the inner surface of the window and a measuring signal from the sensor is routed to a control unit.
    The control unit controls an actuator mounted in connection with an air duct in a diffuser, which regulates a control element, the control element regulating the throw figure of the air flow flowing out of the air duct in the diffuser to the space to be ventilated at the base of the measured temperature.
    With the solution according to the invention, the above-mentioned problems in connection with the distribution of fresh air from the diffuser are reduced, which problems are due to external heat sources in relation to the heating and cooling system in the room space to be ventilated.
    In a situation with maximum cooling in the summer, the surface of a window in the room space that is to be ventilated is hot due to radiation protection from the sun.
    The protective load from the window then easily causes the jet of supply air from the roof diffuser to swing away from the window. This oscillation of the jet of supply air from the roof diffuser can be prevented by making the jet of supply air from the roof diffuser one-sided so that a larger part of the supply air jet is directed towards the window and a smaller part of the supply air jet is directed to another place in the room.
    In a situation with maximum heating in winter, the surface of the window in the room to be ventilated is in turn cold. A strong supply air jet directed from the roof diffuser towards the window can then cause a feeling of draft. The situation can be controlled by making the jet of supply air from the ceiling diffuser into the room space to be ventilated unilaterally so that a smaller part of the supply air jet is directed towards the window and a larger part of the supply air jet is directed to another place in the room space to be ventilated. In a situation with maximum heating in winter when the room is empty and needs to be heated up, a larger part of the supply air jet from the roof diffuser can be directed towards the cold window surface, whereby an effective mixing of the room air is achieved.
    The alignment of the supply air jet from the roof diffuser can in the above-mentioned case be controlled on the basis of a measurement signal from a temperature sensor mounted on the inner surface of the window.
    The invention can be applied to all injectors placed in connection with a roof from which the flow of fresh air runs along the roof surface. The flow of fresh air can exit the room space from the diffuser, for example in the form of a radial jet, a current vortex jet or a linear jet. The solution according to the invention can of course also be applied in a situation where one-sided protective load is caused by other than the sun. than from the window temperature.
    The invention is described in the following with reference to the figures in the accompanying drawings.
    BRIEF EXPLANATION OF THE FIGURES Fig. 1 shows a cross section of a room space and the principle for regulating a diffuser which is placed in connection with the ceiling in the space to be ventilated.
    Fig. 2 shows a cross section of a spreader placed in connection with the ceiling in the space to be ventilated and an arrangement for regulating the spreader.
    Fig. 3 shows a cross section of the spreader shown in Fig. 2 and another arrangement for controlling the spreader. Fig. 4 shows a cross section of the spreader shown in Fig. 2 and a third arrangement for controlling the spreader.
    Fig. 5 shows a cross section of another diffuser placed in connection with the ceiling in the space to be ventilated and a fourth arrangement for regulating the diffuser.
    Fig. 6 shows a cross section of a third spreader placed in connection with the ceiling in the space to be ventilated, which also applies the arrangement shown in Fig. 5 for regulating the spreader.
    DESCRIPTION OF ADVANTAGEOUS EMBODIMENTS Fig. 1 shows a cross section of a room space and the principle of regulating a diffuser which is placed in connection with a ceiling in the space to be ventilated. In connection with the ceiling 12 in the space 10 to be ventilated, a diffuser 50 is placed, from which a jet LA, LB of supply air flows in a direction along the ceiling 12 into the space 10 to be ventilated. Attached to the inner surface of a window 11 in the space to be ventilated is a temperature sensor 20, with which the temperature of the inner surface of the window 11 is measured. The temperature sensor 20 is connected to a control unit 30, which controls an actuator 40. To the actuator 40 is in turn connected a suitable control element, by means of which the throwing figure of the jet of fresh air flowing from the diffuser 50 along the ceiling 12 in the space 10 to be ventilated can be adjusted in the desired way so that it becomes asymmetrical.
    Fig. 2 shows a cross section of a spreader placed in connection with the ceiling in the space to be ventilated and an arrangement for regulating the spreader. It is a so-called radial spreader 50, which comprises an air duct 51 which is circular in diameter, which is directed towards the space 10 to be ventilated, advantageously towards the floor of the space 10 to be ventilated. At the lower end of the air duct 51 there are guide means 52a, 52b, which consist of a round, closed bottom plate 52a and a round roof plate 52b located at a distance therefrom, which has an opening in the middle. The roof plate 52b is at the opening connected to the lower end of the air duct 51. Between the bottom plate 52a and the roof plate 52b a radial guide channel 52 is thus formed, through which a downward flow L1 of fresh air flowing in the lu duct 51 is guided in radial direction LA, LB out of the diffuser 50.
    The diffuser 50 further comprises a control means 53a, 53b in the air duct 51.
    The control member 53a, 53b is formed in this embodiment by two horizontal, superimposed, round control discs 53a, 53b in contact with each other. The first or upper control disk 53a rotates in a horizontal plane and the second or lower control disk 53b is fixedly supported on the air duct 51. The first control disk 53a is supported by the transmission of a vertical shaft 41 on an actuator 40, which may be a drive motor. The first control disk 53a fixed to the shaft 41 rotates driven by the drive motor 40, whereby the position of the disk relative to the second fixed control disk 53b changes.
    Each control disk 53a, 53b has large openings through which a flow L1 of fresh air flows from the air duct 51 into the control duct 52. When the first control disk 53a is rotated with the drive motor 40 to a first outermost position, first openings in the first control disk 53a and second opening in the second control disc in such a position relative to each other that on the left side of the motor 40 a larger free opening for fresh air L1 is formed in comparison with the free opening on the higher side of the motor 40. The left-hand air flow LA from the control channel 52 in the diffuser 50 is thus larger than the right-hand air flow LB from the control channel 52. When the first rotatable control disk 53a is rotated to a second, opposite extreme position relative to the first outermost position, an opposite situation arises. The air flow LA in the figure on the left is then smaller than the air flow LB in the figure on the right. When the first rotating control disk 53a is moved to an intermediate position between the outermost positions, the air flow LA shown in the figure to the left is as large as the air flow LB directed in the figure to the right.
    From the control channel 52 in the diffuser 50, of course, an air flow goes radially in all directions, but the left-hand air flow LA and the right-hand air flow LB are those which one primarily tries to influence with the control. The openings in the control discs 53a, 53b are advantageously such that the total area of the air-permeable free openings is equal in all positions on the control discs 53a, 53b, the pressure drop in the air flow over the control discs 53a, 53b remaining constant.
    Fig. 3 shows a cross section of the spreader shown in Fig. 2 and another arrangement for controlling the spreader. In this embodiment, only a round control disk 55 is used, which is supported via a shaft 41 on a drive motor 40, the control disk 55 rotating driven by the motor 40. The inner surface of the lower part of the air duct 51 has two opposite, vertical control pins 54a, 54b and the upper surface of the control disc 55 has an elevation 55a.
    When the control disk 55 is rotated with the drive motor 40 to a first outermost position, the elevation 55a on the control disk is located in the middle of the first control pin 54a to the left in the figure, the control disk 55 being inclined in a first direction in the manner shown in the figure. On the left side of the control disc 55 in relation to the drive motor 40, a larger free opening for fresh air L1 is formed in comparison with the free opening on the right side of the drive motor 40. The one in the figure on the left, i.e. in the slope of the control disc 55 the directed air flow LA is then larger than the air flow LB directed in the figure to the right. When the control plate 55 is rotated to a second, in opposite relation to the first opposite outermost position, the elevation 54a on the control plate 55 stands in the middle of the right-hand control pin 54b, the control plate 55 being inclined in another, opposite direction. On the right side of the control plate 55 a larger free opening for fresh air L1 is formed in comparison with the free opening on the left side of the control plate 55. The one in the figure to the right, i.e. in the slope of the control disc 55 the directed air flow LA is then larger than the air flow LB directed in the figure to the left. When the control plate 55 is set in a position midway between the outermost positions, the air flow LA in the figure on the left is as large as the air flow LB in the figure on the right. The control disc 55 can be stiffened with a spring so that the control disc does not start to swing in the air flow in the intermediate positions.
    The control pins 54a, 54b are so regulated that the total area of the air-permeable free openings is equal in all control positions.
    Fig. 4 shows a cross section of the spreader shown in Fig. 2 and a third arrangement for controlling the spreader. In this embodiment, the control member consists of a horizontal, round control disc 57, which is supported by an intermediate body 58 on a horizontal control rod 56, which extends through the air duct 51. The control rod 56 is rotatably supported at the jacket of the air duct 51 and the control rod 56 is by means of a horizontal shaft 41 coupled to a drive motor 40. When the control rod 56 is rotated with the drive motor 40, the control disk 57 moves in a rocking motion with the rotational movement of the shaft 56. When the control disk 57 is rotated with the drive motor 40 to a first extreme position, the control disk 57 tilts from the paper toward the viewer, a larger free opening is formed for a flow of fresh air directed from the paper towards the viewer in comparison with the free opening for a flow LB of fresh air directed towards the paper. When the control disk 57 is rotated to a second extreme position opposite to the first extreme position, an opposite situation arises. When the control disc 57 is set in a position midway between the outermost positions, the flow LA of fresh air directed from the paper towards the viewer is as large as the flow LB of fresh air directed towards the paper. The control disc 57 is thus inclined here in principle in the same way as in the embodiment according to Fig. 3.
    Fig. 5 shows a cross section of another diffuser placed in connection with the ceiling in the space to be ventilated and a fourth arrangement for regulating the diffuser. It is a so-called ventilation beam 50, which comprises an elongate, in cross-section rectangular air duct 51, which is directed towards the space 10 to be ventilated, advantageously towards the floor of the space 10 to be ventilated.
    The end of the air duct 51 which opens towards the space 10 to be ventilated has control means 60, 61, by means of which the air flow L1 + L2 from the air duct 51 is directed in the direction LA, LB along the ceiling in the space to be ventilated out. from the diffuser 50. The guide means 60, 61 are formed by a cross-section triangularly shaped control body 60, which extends longitudinally over the entire length of the air duct 51, and a guide plate 61 transverse to the air duct 51, on which the base of the triangular-shaped control body 60 rests. The diffuser 50 further comprises a control means 60 in the air duct 51.
    Above the air duct 51 is an elongate, in cross-section rectangular fresh air chamber 51a, the bottom wall of which has a row of nozzles 5b and the rear wall of which has an inlet opening 51c, through which fresh air is blown into the fresh air chamber 51a. The fresh air is controlled from the fresh air chamber 51a through the nozzle row 51b into the air duct 51. The side walls of the air duct 51 are formed by cross-sectional rectangular heat exchangers 70a, 70b. The flow L1 of fresh air blown into the air duct 51 induces a circulating air flow L2 to flow from the space to be vented through the heat exchangers 70a, 70b to the air duct 51, where the fresh air flow L1 and the circulating air flow L2 are mixed into a combined air flow L1 + L2, which is controlled in direction along the ceiling to the left LA and to the right LB out into the space to be ventilated.
    The air duct 51 thus also serves as a mixing chamber. In the heat exchangers 70a, 70b, the circulating air flow L2 can either be aggravated or cooled. Instead of a row of nozzles 51b in the fresh air chamber 51a, a nozzle gap can be used.
    The control member 60 in this embodiment consists of the above-mentioned triangular-shaped control body 60. The base of the triangular-shaped control body 60 rests on the transverse guide plate 61 in the air duct 51. The control body 60 is connected to the actuator 40, the control body 60 being displaced in the transverse direction 61. When the control body 60 is located in the middle of the air duct 51, as shown in the figure, it is distributed from the air duct 51 in the space to be ventilated outflowing the combined air flow L1 + L2 evenly to the left LA and to the right LB. When the control body 60 is displaced to the right in the figure, a larger part of the air flow L1 + L2 flowing from the air duct 51 in the room space to be ventilated is directed to the Left LA than to the right LB.
    When the control body is shifted to the left in the figure, the situation becomes the opposite, i.e. a larger part of the air flow L1 + L2 flowing from the air duct 51 in the room space to be ventilated is directed to the right LB than to the left LA. The operating member 40 can be constituted, for example, by a drive motor and a gear connected to it via a shaft (not shown in the figure). The gear on the drive motor can in turn be coupled to a rack attached to the lower surface of the control body 60.
    The drive motor drives the gear, which in turn displaces the rack and thus the control body 60 in the transverse direction S1 of the air duct 51.
    Fig. 6 shows a cross section of a third spreader placed in connection with the ceiling in the space to be ventilated, which also applies the arrangement shown in Fig. 5 for regulating the spreader. It is a so-called gap spreader 50, which comprises an elongate, cross-sectional rectangular air duct 51, which is directed towards the space 10 to be ventilated, advantageously towards the floor of the space 10 to be ventilated. The control means 60, 61 and the control means 60 located at the lower end of the air duct 51 correspond completely to the solution shown in Fig. 5. The side walls of the air duct 51 here consist of plates 7la, 7lb, the lower ends of which have bends which control the flow L1 to the sides.
    Above the air duct 51 there is an elongated, rectangular fresh air chamber 51a, the bottom of which is completely open or covered with a sparse grid and the side wall of which is provided with an inlet opening 51c, through which fresh air is blown into the fresh air L1 fresh air chamber 51a to the air duct 51. 51a. The control unit 30 shown in Fig. 1 can be constituted by a separate control unit 30, but the control unit 30 can also be integrated in the control electronics for the drive motor 40. 11 Only a few advantageous embodiments of the invention have been described above and for a person skilled in the art it is clear that these can be modified in numerous ways within the scope of the appended claims.
    权利要求:
    Claims (8)
    [1]
    A method of controlling a spreader (50), which spreader (50) is located in connection with the ceiling (12) in a space (10) to be ventilated and which spreader (50) comprises a counter space (10) to be ventilated. ventilated directional air duct (51) and control means (52, 60, 61) arranged in connection with the air duct (51), by means of which an air stream (LA, LB) flowing out of the air duct (51) in the space (10) to be ventilated ventilated is controlled in the direction along the ceiling (12) out of the diffuser (50), characterized in that in the process the temperature of the inner surface of a window (11) in the space (10) to be ventilated is measured by one on the inner surface of the window (11) arranged temperature sensor (20), the measuring signal of which is led to a control unit (30) and with the control unit (30) a control means (40) is controlled, which regulates a control part (53a, 53b, 55) mounted in connection with the air duct (51) air duct (51). , 57, 60), wherein with the control means (53a, 53b, 55, 57, 60) the throwing figure of the air flow (LA, LB) flowing out from the air duct (51) in the diffuser (50) to the space (10) to be ventilated is regulated to become asymmetrical at the base of the measured temperature.
    [2]
    Method according to claim 1, characterized in that the throw uren of the air flow (LA, LB) flowing out of the air duct (51) in the diffuser (50) to the space (10) to be ventilated is regulated to become asymmetrical in such a way that when the measured temperature of the inner surface of the window (11) is higher than a predetermined setpoint, a larger part of the fresh air flow (LA, LB) flowing out of the diffuser (50) is regulated in the direction of the window (11) and when the measured temperature is lower than the predetermined setpoint, a smaller part of the fresh air flow (LA, LB) flowing out of the diffuser (50) is regulated in the direction of the window (11).
    [3]
    Method according to claim 1, characterized in that the throwing figure of the air flow (LA, LB) flowing out of the air duct (51) in the diffuser (50) to the space (10) to be ventilated is regulated to become asymmetrical in such a way that when the measured temperature of the inner surface of the window (11) is lower than a predetermined setpoint, a larger part of the fresh air flow (LA, LB) flowing out of the diffuser (50) is regulated in the direction of the window (11) in a situation where the space (10) to be ventilated is empty and heating needs occur in the space (10) to be ventilated.
    [4]
    Arrangement for regulating a spreader (50), which spreader (50) is located in connection with the ceiling (12) in a space (10) to be ventilated and which spreader (50) comprises one against the space (10) to be ventilated. ventilated directional air duct (51), in connection with which control means (52, 60, 61) are arranged, by means of which an air stream (LA, LB) flowing out of the air duct (51) in the space (10) to be ventilated is controlled in the direction along the ceiling (12) out of the diffuser (50), characterized in that the arrangement comprises a temperature sensor (20) arranged on the inner surface of a window (11) in the space (10) to be ventilated, which measures the temperature of the inner surface of the window (11), a control member (53a, 53b, 55, 57, 60) located in connection with the air duct (51), which controls the throwing figure of the air flow (LA, LB) flowing out of the air duct (51) in the diffuser (50) to the space (10) to be ventilated, an actuator (40) which controls the control means (53a, 53b, 55, 57, 60) and a man the control unit (30) controlling the upper means (40), to which the measuring signal of the temperature sensor (20) is conducted, said throw fi of the air flow (LA, LB) flowing out into the space (10) to be ventilated can be controlled to become asymmetrical on the basis of the the temperature sensor (20) measured the temperature.
    [5]
    Arrangement according to claim 4, characterized in that the control member (53a, 53b, 55, 57, 60) comprises two horizontal, superimposed and apertured, round control discs (53a, 53b), of which the first control disc (53a , 53b) is coupled to a drive motor (40) by means of a shaft (41) for rotating in a horizontal plane and the second control disc (53a, 53b) is fixedly supported on the air duct (51), the throwing of the one from the air duct ( 51) to 10 15 20 25 30 14 a spreading unit (52) and Further to the space (10) to be ventilated outflowing the air flow (LA, LB) can be adjusted to become asymmetrical by changing the mutual position between the first openings in the first control disc (53a, 53b) and the second openings in the second control disc (53a, 53b) by means of the drive motor (40).
    [6]
    Arrangement according to Claim 4, characterized in that the control element (53a, 53b, 55, 57, 60) comprises a round control plate (55) rotating in a horizontal plane by means of a shaft (41) connected to a drive motor (40). , the upper surface of which has an elevation (55a), and two opposite vertical control pins (54a, 54b) on the inner surface of the lower part of the air duct (51), the control plate (55) being rotatable by means of the drive motor (40) between two outermost positions in such a way that in the first outermost position the elevation (55a) on the upper surface of the control plate (55) stands in the middle of the first control pin (54a, 54b) and tilts the control plate (55) in a first direction and in the second extreme position the ridge (55a) on the upper surface of the control plate (55) stands in the middle of the second control pin (54a, 54b) and tilts the control plate (5 5) in a second, opposite direction, a larger part of it from the air duct to a spreading unit (52) flowing the air flow (L1) is always controlled ir the inclination of the slope and a smaller part in the opposite direction, whereby the throwing figure of the air flow (LA, LB) flowing out in the room space (10) to be ventilated changes to become asymmetrical.
    [7]
    Arrangement according to claim 4, characterized in that the control member (53a, 53b, 55, 57, 60) comprises a horizontally round control plate (57) which is supported by an intermediate piece (58) on an air duct (51) extending through the air duct (51). and by transmitting a shaft (41) to a drive motor (40) coupled to the control rod (56) in such a way that the control plate (57) can be moved with a rocking movement between two extreme positions, in which the control plate (57) is inclined in opposite directions , by rotating with the drive motor (40) the shaft (41) and thereby the control rod (56), whereby the throwing figure of the fresh air flow (Lla, L1b) flowing out of the roof diffuser (50) into the space can be regulated to become asymmetrical. 10 15
    [8]
    Arrangement according to claim 4, characterized in that the control member (53a, 53b, 55, 57, 60) comprises a triangular control body (60), the base of which is movably supported on one transversely to the air duct located in the air duct (51), guide plate (61) in such a way that the control body (60) can be displaced by an actuator (40) along the guide plate (61) in the transverse direction (S1) of the air duct (51) between two outermost positions, throwing the gear of the one from the diffuser (50) in the space (10) to be ventilated the outflowing air flow (LA, LB) can be regulated to become asymmetrical.
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    法律状态:
    2013-05-07| NAV| Patent application has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    FI20106139A|FI126198B|2010-11-01|2010-11-01|Procedure and arrangement for regulating a spreader|
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