EP3150936A1 - Air outlet and method for operating the air outlet - Google Patents
Air outlet and method for operating the air outlet Download PDFInfo
- Publication number
- EP3150936A1 EP3150936A1 EP15187721.4A EP15187721A EP3150936A1 EP 3150936 A1 EP3150936 A1 EP 3150936A1 EP 15187721 A EP15187721 A EP 15187721A EP 3150936 A1 EP3150936 A1 EP 3150936A1
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- EP
- European Patent Office
- Prior art keywords
- air
- air outlet
- hollow body
- outlet according
- adjusting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 8
- 238000004146 energy storage Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000875 corresponding effect Effects 0.000 description 21
- 238000009423 ventilation Methods 0.000 description 20
- 238000011144 upstream manufacturing Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 15
- 238000001816 cooling Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 210000002837 heart atrium Anatomy 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F13/065—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as cylindrical or spherical bodies which are rotatable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/745—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity the air flow rate increasing with an increase of air-current or wind pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F2013/0608—Perforated ducts
Definitions
- the invention relates to an air outlet in the form of a hollow body, which has a lateral surface and opposite end surfaces, wherein the lateral surface is provided with air outlet and one of the end faces has an air inlet, at full load, the air outlet in an upper region of the hollow body as Misch Kunststoffauslassö Maschinenen and in a lower Area of the hollow body serve as Banlluftauslassö Maschinenen, and the full load is defined by the size of the air inlet supplied air volume flow of the air.
- the known air outlets are operated with a constant air volume flow, that is, in their air inlet occurs in each case a constant volume flow of air.
- different large-sized air outlets are available for different constant volume flows.
- five to six sizes are offered.
- so ventilation, heating or cooling is an adjustment, namely such that in the heating case, the bottom of the hollow body is opened and closed in the cooling case. By opening the floor, the warm air can reach the floor area of the room to be heated. In cooling, the cool air automatically sinks to the bottom.
- the invention therefore has the object to avoid the disadvantages mentioned above.
- This object is achieved according to the invention by means of an adjusting device arranged in the interior of the hollow body which keeps the pressure of the air prevailing in the interior of this or of an upper region even at partial load so that mixed air continues to emerge from at least a portion of the air outlet openings.
- the air inlet volume flow supplied a division in a mixed air volume flow and a source volume flow are set / regulated so that a mixed air ventilation is always ensured, ie in case of ventilation, heating and / or cooling and works well in the partial load range ,
- Said mixed air volume flow refers to the air that emerges as mixed air from the air outlet openings, so that these air outlet openings serve as Mischluftauslassö Maschinenen and said source air volume flow relates to the air that emerge as source air from the respective air outlet openings, so that they serve as Banlluftauslassö Eisenen.
- the adjusting device is provided which keeps the prevailing pressure of the air even at partial load in the upper region of the hollow body so large that further mixed air exiting from at least a portion of the air outlet openings located there, Thus, it remains at the mentioned air distribution, namely outlet of mixed air from the corresponding upper region and exit of source air from the corresponding lower region of the lateral surface of the hollow body.
- this or an upper portion means that the upper portion that discharges mixed air at full load is the same upper mixed air ejecting portion at part load, or another upper portion, eg, shortening or lengthening the upper portion Accordingly, the lower range changes.
- the adjusting device is an adjustable throttling device in its air passage cross-section. Due to the fact that the air passage cross-section can be influenced and thus the pressure of the air rises in front of the throttling device (dynamic pressure), the upstream of the throttling device it is possible to keep the pressure of the air correspondingly large, so that the above-mentioned effect, namely the Outlet of mixed air is maintained even under partial load conditions.
- the adjustment (controlled or regulated) of the air passage cross-section can be gradual or continuous.
- the adjusting device of the invention in particular the throttle device is always formed in all embodiments such that it does not act absolutely occlusive in its closed position, but leaves a small air passage cross-section, so that a correspondingly small proportion of the air inlet air supplied pass through the actuator and in can reach the lower portion of the hollow body to escape there as source air can.
- a closed actuator / throttle device so the above state is meant.
- the adjusting device is a throttle device which is adjustable in its position present in the hollow body. Due to the throttling effect of the throttle device results before her an increase in the pressure of the air, ie upstream of the throttle device increases inside the hollow cylinder, the air pressure (dynamic pressure), wherein the position of the throttle device is adjusted depending on the size of the partial load. Is a part-load operation with a relatively large Volumetric flow, it is sufficient to move the throttle device in a relatively distant position to the air inlet, wherein upstream of it, the air pressure is sufficient to allow mixed air from at least a portion of the air outlet openings lying there. If a partial load operation is set in which a relatively small volume flow flows into the air inlet, the position of the variable throttle device is displaced closer to the air inlet in order to bring about the desired pressure increase for a mixed air operation upstream.
- the end face lying opposite the air inlet is designed as a bottom, wherein the bottom is closed or substantially closed.
- the feature of the closed bottom is intended to clarify in particular that absolutely no adjustable floor is required (although, in a specific embodiment of the invention, however, could still be present). If the heating operation is carried out in the prior art, the floor is opened in the known air outlets. This switching, so the opening of the soil and the closing of the soil is not required in the subject of the invention.
- the hollow body has a leading from the air inlet to the bottom longitudinal axis and that the adjustment of the Position of the throttle device takes place along the longitudinal axis of the hollow body. Since the air inlet is located at one end of the hollow body and - preferably opposite - the bottom at the other end of the hollow body, the longitudinal axis from the one end to the other end, the adjustment along the longitudinal axis so cause the Throttle device depending position either closer to the air inlet and further away to the ground or closer to the ground and thus further away from the air inlet. Any number of intermediate positions can be approached continuously. It is always the mixed air operation to realize.
- the adjusting device is arranged between an upper and a lower zone of the hollow body.
- This statement is to be understood in such a way that the upper zone of the hollow body is formed above the adjusting device, that is to say upstream of the latter, and below the adjusting device, that is to say downstream of the adjusting device, the lower zone of the hollow body.
- the adjusting device is displaceable with respect to its spatial position along the longitudinal axis of the hollow body, then the respective zone changes with the displacement of the adjusting device, for example the upper zone becomes larger and accordingly the lower zone becomes smaller or vice versa. It must be distinguished from these zones that the mentioned areas, ie the upper area and the lower area of the hollow body, characterize the exit of the air type.
- the upper zone In the upper part of the hollow body occurs mixed air and in the lower part of the source air. If the pressure conditions in the interior of the hollow body are designed such that above, ie upstream of the actuator, the pressure in the upper zone is insufficient to allow mixed air to escape everywhere, the upper zone can be subdivided into an upper region from the mixed air emerges, and in an underlying part, which belongs to the lower area, emerges from the source air. Below the adjusting device then also exits source air. As a result, the function of respective air outlet openings changes by serving either as mixed air outlet openings or as source air outlet openings. From the explained terms "zone” and "area”, the term “section” is to be further distinguished.
- portion relating to the construction of the air outlet, namely at least one Embodiment with, for example, polygonal cylinder (upper portion) and, for example, circular cylinder (lower portion).
- the adjusting device is a throttle device which is manually, motorically and / or automatically adjustable with regard to the air passage cross section and / or the local position, depending on the load state.
- “Motorized” means that the air passage cross section and / or the spatial position is changed by means of a drive device, for example an electric drive device.
- a drive device for example an electric drive device.
- at least one sensor is provided, which senses the load case, ie the full load or the corresponding partial load and engages accordingly by a motor.
- the load case ie the full load or the corresponding partial load
- the adjustment takes place with regard to the air passage cross section and / or the location position without a drive device is present and without a manual operation.
- a parameter of the present load case in particular a resulting from the supplied flow rate parameter, particularly preferably the self-adjusting pressure inside the hollow body, used to make the adjustment of the throttle device with respect to their air passage cross-section and / or their spatial position automatically.
- the pressure acts on a throttle element of the throttle device and influences the setting of the air passage cross-section (in particular, for example, by acting on a throttle valve biased into a preferred position) and / or the pressure displaces the throttle element (in particular, for example, by displacement of the throttle element biased in a preferred direction).
- a development of the invention provides that the adjusting device is mounted positionally displaceable against the force of an energy storage device along the longitudinal axis, in particular in the direction of the ground, in the hollow body.
- the adjusting device is acted upon by the force of the force accumulator and thereby urged at zero load in a predetermined position, in particular provided with a stop starting position. If the load is increased, this causes the air pressure in the interior of the hollow body, namely on the upstream side of the actuator increases, with the result that that thereby the adjusting device is displaced against the force of the energy storage device.
- the pressure dynamic pressure
- a displacement of the actuating device along the longitudinal axis, in the direction of the ground, that is, down takes place.
- the throttle device has at least one throttle element which is adjustable in the air passage cross section.
- the throttle element can be manually, motorically and / or automatically, in particular against the force of an energy storage device, be adjustable in the air passage cross-section.
- the pressure conditions in the hollow body can also be set such that all air outlet openings located upstream of the throttling element discharge mixed air, that is, the upper area corresponds to the upper zone, and that all the air outlet openings downstream of the throttling element output source air, that is, the lower area corresponds to the lower area Zone of the hollow body.
- the displacement with respect to the position and / or the adjustment with respect to the air passage cross section of the adjusting device, in particular of the throttle element, by a force acting on the adjusting device, in particular the throttle element, back pressure of the air resulting force, ie the inside of the hollow body present pressure conditions upstream or downstream of the adjusting device.
- the throttle element is a position-displaceable plate, in particular a plate, a flap pivotally mounted on the edge, a centrally or approximately centrally mounted double flap, an aperture and / or a butterfly flap.
- the position-displaceable flap, in particular the plate act more or less as a bluff body, whereby the positional displacement, preferably counter to the force of the force accumulator, takes place due to the dynamic pressure.
- a throttling of the air flow within the hollow body is generated as a function of the flap angle. If the flap is closed, a large part of the air in the upper zone of the hollow body emerges.
- the dimensions of the flap are chosen such that no complete closure of the airway takes place, but in the closed position of the flap still an air passage can take place.
- a throttle element a centrally or approximately centrally mounted double flap.
- a double flap is designed like a rocker.
- the mentioned aperture is preferably arranged transversely to the longitudinal axis of the hollow body.
- the butterfly flap has a central or approximately central bearing point for the damper blades.
- the compression spring can act on the positionally displaceable plate.
- the compression spring is located on the downstream side of the plate.
- the aforementioned torsion spring can act on the edge pivotally mounted flap or on the butterfly flap and urge the corresponding flap in each case in the closing direction. Due to the increased pressure upstream of the respective flap, it is forced into a corresponding open position under the action of the force storage device.
- the torsion spring can also be formed by a plurality of torsion spring elements, for example, to each act on a flap of the pair of flaps.
- the energy accumulator has a tension spring, which is connected to a pliable traction means and a deflecting device deflecting the pliable traction means, in particular deflecting device deflecting by 180 °.
- the pliable traction means is mounted on the upstream side of the position-displaceable plate and leads to one end of the tension spring whose other end is fixed to the hollow body.
- a deflection can be provided by 180 °.
- a balance weight can be attached to the traction means, which at least partially compensates for the weight of the throttle element, so for example the position displaceable plate. Depending on the balance weight can be carried out a calibration of the arrangement.
- the hollow body - as seen along the longitudinal axis - has two sections, wherein the upper portion of a polygonal cylinder, in particular eight-corner cylinder, and the lower portion is formed by a circular cylinder.
- the arrangement is preferably made such that the lateral surface of the polygonal cylinder has first air outlet openings and that the circular cylinder has second air outlet openings in its lateral surface.
- the first air outlet openings differ in terms of on the size of the second air outlet openings.
- the arrangement is such that the lying in the circular cylinder second air outlet along the longitudinal axis from top to bottom, ie in the direction of the ground, zoom out.
- the first air outlet openings which lie on the lateral surface of the polygonal cylinder, all have the same diameter.
- the diameter of the first air outlet openings is smaller than the diameter of the smallest second air outlet openings.
- the above explanation of the effects of the sizes of the air outlet openings can also be realized in that the number of air outlet openings lying in a certain surface area is chosen to be correspondingly large.
- the operating procedure is always such that by means of the adjusting device, the pressure conditions are set in the interior of the hollow body that emerges from the air outlet openings of the polygonal cylinder mixed air and from the air outlet openings of the circular cylinder source air.
- adjusting devices which are adjustable in the air passage cross-section and / or when the adjusting device is arranged displaceably in the hollow body. Their position is then taken accordingly automatically, in particular, to let the mentioned types of air from the respective sections, ie polygonal cylinder and circular cylinder exit.
- an inner cylinder in the lower section an inner cylinder is arranged, which has air passage openings.
- the air located there in the inner cylinder will thus first pass through the air passage openings of the inner cylinder, then get to the air outlet openings of the lower portion of the hollow body and exit there, namely as source air.
- the inner cylinder has a radial distance to the circular cylinder.
- the inner cylinder with his Air passage openings are used in particular for flow compensation and in particular also for a speed reduction of the air takes place.
- the above explanation of the effects of the free cross sections of the air outlet openings or passage openings are also realized by the number of air outlet openings lying in a certain area being chosen to be correspondingly large.
- the diaphragm rings which are transverse, in particular perpendicular to the longitudinal axis of the hollow cylinder, prevent the air in this part from the air outlet openings is blown obliquely downward. So they have air guiding function, such that preferably blown in the horizontal direction or in approximately horizontal direction, that is as perpendicular as possible to the longitudinal axis or approximately at right angles to the longitudinal axis.
- the air inlet is formed on a connecting piece.
- the air outlet can be very easily connected to a pipe system of an air distribution network via the connecting piece.
- a development of the invention provides that the throttle device, in particular at least in no-load operation, is located between the upper and the lower section of the hollow body. This has already been discussed above.
- the no-load operation indicates the situation that no air is supplied to the air outlet.
- the throttle element designed as a plate in particular a plate, has a peripheral edge which lies at a distance from the inside of the hollow body and / or to the inside of the inner cylinder. This distance represents a constriction, so a corresponding throttle point.
- the plate in particular the plate, extends transversely, in particular at right angles, to the longitudinal axis of the hollow body. This has already been discussed.
- the actuating device carries out a control operation or a control operation.
- a control operation which, however, - are not compensated - for example, in pressure fluctuations of the air inlet air supplied.
- the adjusting device is always adapted with regard to its spatial position and / or its air passage cross section according to the current situation.
- the invention further relates to a method for operating an air outlet formed in the form of a hollow body, in particular as described above according to the various variants, wherein an upper end of the hollow body supplied air exits or substantially from air outlet openings on a lateral surface of the hollow body, wherein provided is that depending on the size of the volume flow of the supplied air, the air pressure inside the hollow body is controlled or regulated so that always emerges from the located in an upper region of the hollow body air outlet openings mixed air and preferably that of which located in a lower portion of the hollow body Air outlet openings always escape source air.
- the air pressure in the hollow body is controlled by adjusting an air passage cross section of one of the adjusting devices arranged in the interior of the hollow body and / or by means of a local position adjustment of one or more adjusting devices arranged displaceably in the interior of the hollow body is regulated.
- adjusting device a throttle device is preferably used.
- the air outlet blows the mixed air above the source air such that the mixed air slides over the source air.
- This principle causes the source air in the floor area of the room in which the air outlet is held, and thus there their effect, in particular the heating effect unfolds.
- the particular warm source air can therefore not quickly rise again due to the mixed air located above it, so get to the ceiling of the room.
- the FIG. 1 shows an area of a room 1 of a building, preferably an industrial hall.
- at least one air outlet 2 is arranged in the space 1 and is arranged standing on a floor 3 of the room 1.
- the air outlet 2 is supplied via an air line 4 with air.
- the air duct 4 is installed under a ceiling 5 of the room 1 and leads from above to the air outlet 2, as shown in FIG. 1 seen.
- the air supplied via the air line 4 to the air outlet 2 is preferably treated centrally, in particular treated by having a sufficient fresh air portion, for example, cooled, heated and / or moistened.
- FIG. 1 shows an area of a room 1 of a building, preferably an industrial hall.
- the air outlet 2 is not placed on the floor 3 of the room 1, but hanging in the room 1 is arranged.
- the suspension device is in the FIG. 2 not shown.
- the air outlet 2 with its bottom is about two to three meters above the bottom 3.
- a ventilation and / or air conditioning preferably also a pollutant dilution takes place, so contaminated with pollutants room air through the Supply air of the air outlet is reduced in the pollutant content.
- cooling and / or heating a corresponding effect must always be achieved in a living zone of the room 1, that is, where, for example, people in the room 1 reside and / or machines are, for example, fresh air / Treated air can be discharged by means of the air outlet 2, where appropriate, a heating effect or a cooling effect can be realized, that is, the exiting the air outlet 2 air is cooler than the room air or warmer than the room air.
- a heating effect or a cooling effect can be realized, that is, the exiting the air outlet 2 air is cooler than the room air or warmer than the room air.
- the air emerging from the air outlet 2 approximately has the temperature of the room air.
- cooling it must be ensured that in the area of the floor 3, in particular in the occupied zone, temperatures that are too low are not perceived as being uncomfortable by persons staying there.
- the air outlet 2 is usually also referred to as industrial air outlet.
- FIG. 3 illustrates the air outlet 2, which has a hollow body 6.
- the hollow body 6 has a lateral surface 7 and two mutually opposite end surfaces 8 and 9.
- an air inlet 10 is formed, in particular realized by means of a connecting piece 11, which in the FIG. 3 is not shown in detail.
- the air line 4 according to the Figures 1 or 2 connected.
- the end face 9 forms a bottom 12 of the hollow body 6, wherein the bottom 12 is firmly closed, the hollow body 6 has accordingly at the lower end 40, ie in the region of the bottom 12, no opening and can not be opened there.
- the hollow body 6 has a longitudinal extent, which is characterized by a longitudinal axis 13.
- the longitudinal axis 13 extends from the end face 8 to the end face 9 and represents a central axis of the hollow body 6.
- the hollow body 6 is formed around the longitudinal axis 13 around cylindrical.
- the air connection piece 11 at the upper end 19 of the hollow body 6 preferably has a circular cross-section.
- the different cross-sectional designs are the FIG. 4 clearly removable, which shows a plan view of the end face 8 of the air outlet 2.
- the jacket wall is formed in this section 14 of the hollow body 6 by a plurality of planar wall parts 20, which are arranged at an angle to each other.
- the lower portion 15 of the hollow body is due to the design as a circular cylinder 18 before a peripheral with a corresponding radius shell wall.
- There are a plurality of air outlet openings 21 are provided, which enforce the lateral surface 22 of the entire air outlet 2, so the entire hollow body 6, accordingly in the upper portion 14, the individual wall portions 20 and in the lower portion 15 to enforce the circular cylinder 18. From the FIG. 3 the air outlet openings 21 in the upper portion 14 are clearly visible.
- the air outlet openings 21 in the lower section 15 are in the FIG. 3 indicated by a corresponding dashed line.
- the air outlet openings 21 in the upper section 14 all have the same cross-section.
- the air outlet openings 21 in the lower section 15 are designed such that downwards, ie in the direction of the floor 12, the diameter of the air outlet openings 21 located there is reduced.
- the diameters of the air outlet openings 21 in the upper section 14 are smaller than the smallest diameters of the air outlet openings 21 in the lower section 15.
- the air outlet openings 21 are distributed in the lower section such that the number from above becomes smaller down, but all have the same diameter.
- an optional inner cylinder 23 may be located, which is preferably also designed as a circular cylinder and has a smaller diameter than the circular cylinder 18.
- the outer surface of the inner cylinder 23 is provided with air passage openings 24.
- the arrangement of diaphragm rings 55 between the circular cylinder 18 and the inner cylinder 23 (FIG. FIG. 3 ).
- an adjusting device 26 is disposed in the interior of the hollow body 6, which in the FIG. 3 is shown only schematically.
- the adjusting device 26 is designed in particular as a throttle device 27, that is, it throttles acting on an air flow, which is present in the interior of the hollow body 6 in that a volume flow of air is supplied to the air inlet 10, from the lateral surface 22, ie from the plurality the air outlet openings 21 located there of the air outlet 2 accordingly exits and enters the room 1, there to realize a ventilation, heating and / or cooling.
- a corresponding air pressure ratio upstream and downstream of the actuator 26 is set depending on the throttle effect of the actuator 26, ie above the actuator 26, namely in the interior of the upper portion 14, or downstream of the actuator 26, ie Interior of the lower portion 15 of the Hollow body 6.
- the air outlet 2 carries out a heating operation or a cooling operation as a function of the temperature of the air introduced into the air inlet 10. If there is no temperature treatment of the supplied air, ventilation takes place. It is also important how large the volume flow of the air inlet 10 supplied air. If full load is present, then the size of the volume flow supplied to the air inlet has a maximum value for the size of the air outlet 2. If a smaller volume flow is supplied to the air inlet 10, then the air outlet 2 operates in part-load operation.
- the part-load operation includes a plurality of operating states, for example, stepped possible sizes of the volume flows. However, a continuously adjustable size of the volume flow is also conceivable.
- the invention makes it possible to blow off mixed air in the upper region 28 of the hollow body 6 and source air in the lower region 32.
- the upper portion 28 is in the embodiment of FIG. 3 in the polygonal cylinder 16 and the lower portion 32 is in the embodiment of the FIG. 3 at the circular cylinder 18 before.
- the mixing air 29 pushes over the source air 31, so that the source air 31 is in the region of the bottom 3 of the room 1, which is particularly important in the heating case is.
- the mixed air 29 prevents the source air 31 from rising, since the mixed air 29 covers the source air 31, warm air "trapped" in the heating area in the area of the bottom 3, whereby a good heating effect and a pleasant room climate is created in the room 1.
- FIGS. 13 and 14 the effect described above, wherein the FIG. 13 the air outlet 2 at full load and the FIG. 14 shows the air outlet 2 in partial load operation.
- the air inlet 2 supplied, in particular by means of the air line 4 supplied volume flow of air enters this in the interior of the air outlet 2 and - according to FIG. 13 - From the upper portion 14 as mixed air 29 from. Due to the throttling action of the adjusting device 26 further air exits from the lower portion 15 as source air 31 from. It is in the FIGS. 13 and 14 recognizable that the mixed air 29 pushes over the source air 31, so that, for example, in the heating case, when warm air exits, the high velocity, especially high impulse emerging mixed air 29 quasi erected a screen over the source air 31 and thereby the source air in the area the floor 3 of the room 1 holds.
- the actuator 26 is active by being adjustable.
- the adjusting device 26 with respect to its air passage cross section and / or in view of their local position within the hollow body 6, is adjustable to the above-mentioned principle of air distribution in each operating case, ie under full load and also under any part load case to uphold.
- FIGS. 5 to 7 illustrate an embodiment of the air outlet 2, the design of the air outlet 2 of the FIG. 3 corresponds, wherein the throttle device 27 acting as adjusting device 26 is formed in this embodiment as a damper (throttle element 54), namely centrally mounted double flap 33.
- the double flap 33 can be adjusted manually or by means of a motor drive.
- the device for manual adjustment or the motorized adjustment is not shown in detail, but can be realized by the average person skilled in the art.
- the FIG. 5 shows the double flap 33 in the fully open state. In the FIG. 6 is the double flap 33 partially closed and in the FIG. 7 completely closed.
- the FIG. 5 illustrates the full load case, so that emerges from the upper section 14 mixed air and from the lower section 15 of source air.
- the double flap 33 is so far closed according to the size of the partial load case that further from the upper portion 14 mixed air and from the lower section 15 exiting source air. If there is only a very small partial load case, that is to say that only a very small volume flow is supplied to the air outlet 2, then the situation can be determined according to FIG FIG. 7 occur, that is, the double flap 33 is closed and acts strongly throttling, so that mainly air exiting from the upper portion 14.
- FIGS. 8 to 10 show various embodiments of the adjusting device 26 with a corresponding throttle element 54, namely in the case of FIG. 8 as aperture 34, in the Trap of FIG. 9 as butterfly flap 35 and in the case of FIG. 10 As a plate 36, in particular plate 37.
- the aperture 34 and the butterfly flap 35 are respectively fixed within the volume of the hollow body 6, that is, their spatial position is fixed, but they can cause depending on the load case, the throttle effect by appropriate Heil joslassquer4.000sver ein.
- the plate 36 is displaceably mounted within the hollow body 6, so can change their position.
- a guide rod 38 may be disposed within the hollow body 6, preferably along the longitudinal axis 13, on which the plate 36, which extends transversely, in particular at right angles, to the longitudinal axis 13, is mounted, so that they are displaced in the direction of the double arrow 39 can.
- a bit wherein this shutdown can be effected manually, can be effected by a motor, but preferably takes place automatically, namely as a function of the air pressure, which builds up inside the hollow body 6.
- FIG. 11 has the adjusting device 26 according to the FIG. 10 the displaceable plate 36, which is designed in particular as a plate 37 and can be displaced on the guide rod 38 in the direction of the double arrow 39.
- the plate 36 On the downstream side, the plate 36 has a compression spring 43 acting as a force accumulator 42, which is designed as a helical compression spring 44 and reverses the guide rod 38.
- One end 45 of the helical compression spring 44 is supported on the plate 36 and the other end 46 on the bottom 12, preferably within a receiving sleeve 47 arranged there.
- a volume flow of supplied air is fed into the upper end 19 of the hollow body 6.
- the plate 36 Due to the air pressure prevailing upstream of the plate 36, the plate 36 is against the force of the energy storage device 42 in the direction of the ground 12 moves. This in the FIG. 11 shown in dashed lines.
- the arrangement is made in such a way that mixed air 29 emerges from the air outlet openings 21 located in the polygonal cylinder 16 and that source air 31 exits from the air outlet openings 21 located in the circular cylinder 18.
- the construction may also be designed differently, for example such that the helical compression spring 44 is supported on a transverse element of the guide rod 38, that is, it does not extend to the bottom 12.
- FIG. 12 shows a further embodiment, the embodiment of the FIG. 11 corresponds and only differs in that as power storage 42, a tension spring 49 is used, which is designed as a helical tension spring 50.
- the helical tension spring 50 is attached to the housing of the air outlet 2, for example to the hollow body 6 or, if present, to the inner cylinder 23 at one end.
- the other end is connected to a balance weight 51, to which a slippery traction means 52 is attached, which leads into an upper inner region of the air outlet 2, where it is deflected by means of a deflection device 53 by 180 ° and is secured to the plate 36.
- the functioning of the FIG. 12 corresponds to the functioning of the FIG. 11 However, wherein the balance weight 51 at least partially compensates for the weight of the plate 36, whereby an optimal calibration of the device can take place.
- the invention allows in all load cases a mixing ventilation combined with a displacement ventilation.
- the mixing ventilation preferably has inductive single jets which emerge from the air outlet openings 21.
- an adjustable throttle element is arranged, which can be adjusted according to the desired requirements.
- the hollow body of two concrete components namely the polygonal cylinder 16 and the circular cylinder 18 is formed, due to the invention always mixed air from the polygonal cylinder 16 and source air from the circular cylinder 18 exits.
- the polygonal cylinder 16 can therefore also be referred to as a mixing head.
- the hollow body 7 has no such structural division into two special types of cylinders, but that due to the adjusting device 26, the pressure in the interior of the hollow body 6 is controlled / regulated such that in an upper part mixed air and in a lower Part source air leaks, and this in every load case, ie at full load and in any part load case.
- the function of the air outlet openings vary (once as Misch Kunststoffauslassö Maschinenen, another time as Banl Kunststoffauslassötechnisch).
- the FIG. 15 shows a diagram.
- the abscissa shows the volume flow V of the air inlet 10 supplied air and the ordinate a pressure difference .DELTA.p, wherein the pressure difference, the pressure of the air inside the polygonal cylinder 16 (eg FIG. 3 ) to the external pressure, ie the air pressure outside of the air outlet 2.
- the characteristic B relates to the mixed air and the source air at the maximum open actuator 26 and the maximum displacement actuator 26. Due to the actuator 26 results from the diagram of FIG.
- an air outlet in the form of a hollow body the lateral surface is provided with air outlet opening, wherein the bottom is closed or at least partially closed and which is provided with an air inlet opposite the bottom, wherein at maximum flow (full load), the air outlet in a Upper portion of the hollow body, in which a static pressure p M is present, as Mischauslassö réelleen and in a lower portion of the hollow body (in which a static pressure p Q is present) serve as Banlluftauslassö réelleen, wherein disposed in the interior of the hollow body actuating device is provided at reduced volume flow (part load) keeps the pressure prevailing in the interior of the upper region p M of the air (where p M is greater p Q ) that mixed air exits.
- there is a mixed ventilation form consisting of the discharge of mixed air and the emission of source air.
- the free cross section of the sum of the air outlet openings in the upper portion of the hollow body is at most half as large as the free cross section of the sum of the air outlet openings in the lower portion of the hollow body.
- the adjustment range / control range of the volume flows of the air outlet relates to the ratio of the volume flows of both flow forms (Mixed air and source air, where the volume flow of the mixed air is denoted by V M and the volume flow of the source air with V Q.
- V M / V Q 1 / 10 to 1 / 4th
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Abstract
Die Erfindung betrifft einen Luftauslass (2) in Form eines Hohlkörpers (6), der eine Mantelfläche (22) und einander gegenüberliege Stirnflächen aufweist, wobei die Mantelfläche mit Luftauslassöffnungen (21) versehen ist und eine der Stirnflächen einen Lufteinlass aufweist, bei Volllast die Luftauslassöffnungen (21) in einem oberen Bereich (28) des Hohlkörpers (6) als Mischluftauslassöffnungen (30) und in einem unteren Bereich (32) des Hohlkörpers als Quellluftauslassöffnungen (41) dienen, und die Volllast durch die Größe eines dem Lufteinlass (2) zugeführten Volumenstroms der Luft definiert ist. Es ist eine im Innern des Hohlkörpers (6) angeordnete Stelleinrichtung (26) vorgesehen, die auch bei Teillast den im Innern dieses oder eines oberen Bereichs (28) herrschenden Druck der Luft derart groß hält, dass weiterhin Mischluft (29) aus zumindest einem Anteil der Luftauslassöffnungen (21) austritt. Ferner betrifft die Erfindung ein Verfahren zum Betreiben eines/des Luftauslasses (2).The invention relates to an air outlet (2) in the form of a hollow body (6) having a lateral surface (22) and opposite end faces, wherein the lateral surface is provided with Luftauslassöffnungen (21) and one of the end faces has an air inlet, at full load, the air outlet openings (21) in an upper portion (28) of the hollow body (6) serve as Mischluftauslassöffnungen (30) and in a lower portion (32) of the hollow body as Quellluftauslassöffnungen (41), and the full load by the size of the air inlet (2) supplied Volume flow of the air is defined. An adjusting device (26) arranged inside the hollow body (6) is provided which, even at partial load, keeps the pressure of the air prevailing in the interior of this or an upper region (28) so great that mixed air (29) also consists of at least a portion the air outlet openings (21) emerges. Furthermore, the invention relates to a method for operating an air outlet (2).
Description
Die Erfindung betrifft einen Luftauslass in Form eines Hohlkörpers, der eine Mantelfläche und einander gegenüberliegende Stirnflächen aufweist, wobei die Mantelfläche mit Luftauslassöffnungen versehen ist und eine der Stirnflächen einen Lufteinlass aufweist, bei Volllast die Luftauslassöffnungen in einem oberen Bereich des Hohlkörpers als Mischluftauslassöffnungen und in einem unteren Bereich des Hohlkörpers als Quellluftauslassöffnungen dienen, und die Volllast durch die Größe eines dem Lufteinlass zugeführten Luftvolumenstroms der Luft definiert ist.The invention relates to an air outlet in the form of a hollow body, which has a lateral surface and opposite end surfaces, wherein the lateral surface is provided with air outlet and one of the end faces has an air inlet, at full load, the air outlet in an upper region of the hollow body as Mischluftauslassöffnungen and in a lower Area of the hollow body serve as Quellluftauslassöffnungen, and the full load is defined by the size of the air inlet supplied air volume flow of the air.
Derartige Luftauslässe sind bekannt, sie dienen insbesondere dem Lüften, Heizen und/oder Kühlen von industriell genutzten Räumen, beispielsweise Hallen. Insbesondere gelten die vorstehenden Ausführungen auch für den Gegenstand der Erfindung.Such air outlets are known, they are used in particular the ventilation, heating and / or cooling of industrial spaces, such as halls. In particular, the above statements also apply to the subject matter of the invention.
Die bekannten Luftauslässe werden mit konstantem Luftvolumenstrom betrieben, das heißt, in ihren Lufteinlass tritt jeweils ein konstanter Volumenstrom der Luft ein. In Abhängigkeit des Einsatzfalls stehen unterschiedliche groß ausgelegte Luftauslässe für unterschiedliche Konstant-Volumenströme zur Verfügung. Üblich sind fünf bis sechs Baugrößen, die angeboten werden. In Abhängigkeit des jeweiligen Betriebsfalls, also Lüften, Heizen oder Kühlen erfolgt eine Verstellung, nämlich derart, dass im Heizfall der Boden des Hohlkörpers geöffnet und im Kühlfall geschlossen wird. Durch das Öffnen des Bodens kann die warme Luft in den Bodenbereich des zu heizenden Raumes gelangen. Im Kühlfall sinkt die kühle Luft selbsttätig bis in den Bodenbereich.The known air outlets are operated with a constant air volume flow, that is, in their air inlet occurs in each case a constant volume flow of air. Depending on the application, different large-sized air outlets are available for different constant volume flows. Usually five to six sizes are offered. Depending on the respective operating case, so ventilation, heating or cooling is an adjustment, namely such that in the heating case, the bottom of the hollow body is opened and closed in the cooling case. By opening the floor, the warm air can reach the floor area of the room to be heated. In cooling, the cool air automatically sinks to the bottom.
Bei der bekannten Lösung ist ein Antrieb zum Öffnen und Schließen des Bodens erforderlich. Ferner ist die Luftverteilung in dem zu lüftenden, zu kühlenden und/oder zu heizenden Raum verbesserungswürdig.In the known solution, a drive for opening and closing the soil is required. Furthermore, the air distribution in the room to be ventilated, to be cooled and / or to be heated room for improvement.
Die Erfindung hat daher die Aufgabe, die vorstehend genannten Nachteile zu vermeiden.The invention therefore has the object to avoid the disadvantages mentioned above.
Diese Aufgabe wird erfindungsgemäß gelöst durch eine im Innern des Hohlkörpers angeordnete Stelleinrichtung, die auch bei Teillast den im Innern dieses oder eines oberen Bereichs herrschenden Druck der Luft derart groß hält, dass weiterhin Mischluft aus zumindest einem Anteil der Luftauslassöffnungen austritt. Bei der Erfindung soll auch bei einem variablen, dem Lufteinlass zugeführten Volumenstrom eine Aufteilung in einem Mischluftvolumenstrom und einem Quellvolumenstrom so eingestellt/geregelt werden, dass eine Mischluft-Lüftung immer sichergestellt ist, also im Lüftungsfall, Heizfall und/oder Kühlfall und auch im Teillastbereich funktioniert. Der genannte Mischluftvolumenstrom betrifft die Luft, die als Mischluft aus den Luftauslassöffnungen austritt, sodass diese Luftauslassöffnungen als Mischluftauslassöffnungen dienen und der genannte Quellluftvolumenstrom betrifft die Luft, die als Quellluft aus den entsprechenden Luftauslassöffnungen austreten, sodass diese als Quellluftauslassöffnungen dienen. Durch die Zuführung der Luft in den Lufteinlass ergibt sich im Innern des Hohlkörpers ein bestimmter Druck der Luft, der im Falle einer Volllast dazu führt, dass die Luft im oberen Bereich des Hohlkörpers mit hoher Geschwindigkeit aus den Luftauslassöffnungen als Luftstrahlen austritt, die Raumluft induzieren, wodurch sich eine Luftvermischung in dem zu belüftenden Raum einstellt. Hieraus resultiert die Bezeichnung "Mischluft". Nach unten hin, also weiter entfernt vom Lufteinlass des Hohlkörpers, stellt sich ein entsprechend geringerer Druck im Innern des Hohlkörpers ein, derart, dass die dort vorhandene Luft mit geringerer Geschwindigkeit aus den dort liegenden Luftauslassöffnungen austritt, nämlich induktionsfrei, sodass hier die Quellluft vorliegt. Wenn nun der Luftauslass mit einem geringerem Volumenstrom als bei Volllast gespeist wird, so würde der Druck im Innern des Hohlkörpers auch im oberen Bereich zurückgehen, beispielsweise derart weit, dass die aus den Luftauslassöffnungen dieses Bereichs austretende Luft keine hinreichende Geschwindigkeit mehr aufweist, um eine Induktion herbeizuführen, dass also dort keine Mischluft mehr vorliegt. Um dieses zu verhindern, ist erfindungsgemäß im Innern des Hohlkörpers die Stelleinrichtung vorgesehen, die den herrschenden Druck der Luft auch bei Teillast im oberen Bereich des Hohlkörpers derart groß hält, dass weiterhin Mischluft aus zumindest einem Anteil der dort gelegenen Luftauslassöffnungen austritt, es also bei der erwähnten Luftverteilung bleibt, nämlich Austritt von Mischluft aus dem entsprechenden oberen Bereich und Austritt von Quellluft aus dem entsprechenden unteren Bereich der Mantelfläche des Hohlkörpers. Die Formulierung "dieses oder eines oberen Bereichs" bedeutet, dass der obere Bereich, der bei Volllast Mischluft ausstößt, bei Teillast derselbe obere, Mischluft ausstoßende Bereich ist oder ein anderer oberer Bereich, also zum Beispiel eine Verkürzung oder Verlängerung des oberen Bereichs stattfindet, wobei sich dementsprechend der untere Bereich verändert.This object is achieved according to the invention by means of an adjusting device arranged in the interior of the hollow body which keeps the pressure of the air prevailing in the interior of this or of an upper region even at partial load so that mixed air continues to emerge from at least a portion of the air outlet openings. In the invention, even in a variable, the air inlet volume flow supplied a division in a mixed air volume flow and a source volume flow are set / regulated so that a mixed air ventilation is always ensured, ie in case of ventilation, heating and / or cooling and works well in the partial load range , Said mixed air volume flow refers to the air that emerges as mixed air from the air outlet openings, so that these air outlet openings serve as Mischluftauslassöffnungen and said source air volume flow relates to the air that emerge as source air from the respective air outlet openings, so that they serve as Quellluftauslassöffnungen. By supplying the air into the air inlet results in the interior of the hollow body, a certain pressure of the air, which in the case of full load causes the air in the upper region of the hollow body at high speed exits the air outlet openings as air jets that induce room air, causing air mixing in the room to be ventilated. This results in the term "mixed air". Towards the bottom, ie further away from the air inlet of the hollow body, a correspondingly lower pressure arises in the interior of the hollow body, such that the air present there emerges at a lower speed from the air outlet openings located there, namely without induction, so that the source air is present here. If now the air outlet is fed with a smaller volume flow than at full load, the pressure inside the hollow body would also decrease in the upper region, for example to such an extent that the air emerging from the air outlet openings of this region no longer has sufficient speed to induce cause, that therefore there is no more mixed air. In order to prevent this, according to the invention inside the hollow body, the adjusting device is provided which keeps the prevailing pressure of the air even at partial load in the upper region of the hollow body so large that further mixed air exiting from at least a portion of the air outlet openings located there, Thus, it remains at the mentioned air distribution, namely outlet of mixed air from the corresponding upper region and exit of source air from the corresponding lower region of the lateral surface of the hollow body. The phrase "this or an upper portion" means that the upper portion that discharges mixed air at full load is the same upper mixed air ejecting portion at part load, or another upper portion, eg, shortening or lengthening the upper portion Accordingly, the lower range changes.
Nach einer Weiterbildung der Erfindung ist vorgesehen, dass die Stelleinrichtung ein in ihrem Luftdurchlassquerschnitt verstellbare Drosseleinrichtung ist. Dadurch, dass der Luftdurchlassquerschnitt beeinflusst werden kann und bei entsprechend weit geschlossenem Luftdurchlassquerschnitt somit vor der Drosseleinrichtung der Druck der Luft ansteigt (Staudruck) ist es möglich, stromaufseitig der Drosseleinrichtung den Druck der Luft entsprechend groß zu halten, sodass die vorstehend genannte Wirkung, nämlich der Austritt von Mischluft auch bei Teillastzuständen erhalten bleibt. Die Verstellung (gesteuert oder geregelt) des Luftdurchlassquerschnitts kann stufenweise oder kontinuierlich erfolgen.According to a development of the invention, it is provided that the adjusting device is an adjustable throttling device in its air passage cross-section. Due to the fact that the air passage cross-section can be influenced and thus the pressure of the air rises in front of the throttling device (dynamic pressure), the upstream of the throttling device it is possible to keep the pressure of the air correspondingly large, so that the above-mentioned effect, namely the Outlet of mixed air is maintained even under partial load conditions. The adjustment (controlled or regulated) of the air passage cross-section can be gradual or continuous.
Die Stelleinrichtung der Erfindung, insbesondere die Drosseleinrichtung, ist bei sämtlichen Ausführungsbeispielen stets derart ausgebildet, dass sie auch in ihrer geschlossenen Stellung nicht absolut verschließend wirkt, sondern einen kleinen Luftdurchlassquerschnitt belässt, sodass ein entsprechend kleiner Anteil der dem Lufteinlass zugeführten Luft die Stelleinrichtung passieren und in den unteren Bereich des Hohlkörpers gelangen kann, um dort als Quellluft austreten zu können. Wenn also in dieser Anmeldung von einer geschlossenen Stelleinrichtung/Drosseleinrichtung gesprochen wird, so ist der vorstehend genannte Zustand gemeint.The adjusting device of the invention, in particular the throttle device is always formed in all embodiments such that it does not act absolutely occlusive in its closed position, but leaves a small air passage cross-section, so that a correspondingly small proportion of the air inlet air supplied pass through the actuator and in can reach the lower portion of the hollow body to escape there as source air can. Thus, when talking in this application of a closed actuator / throttle device, so the above state is meant.
Vorzugsweise ist vorgesehen, dass die Stelleinrichtung eine in ihrer im Hohlkörper vorliegenden Position verstellbare Drosseleinrichtung ist. Aufgrund der Drosselwirkung der Drosseleinrichtung ergibt sich vor ihr eine Erhöhung des Drucks der Luft, also stromaufwärts der Drosseleinrichtung steigt im Innern des Hohlzylinders der Luftdruck (Staudruck), wobei in Abhängigkeit der Größe der Teillast die Position der Drosseleinrichtung verstellt wird. Liegt ein Teillastbetrieb mit relativ großem Volumenstrom vor, so reicht es aus, die Drosseleinrichtung in eine relativ weit entfernte Position zum Lufteinlass zu verlagern, wobei stromaufwärts von ihr dennoch der Luftdruck ausreicht, um Mischluft aus zumindest einem Anteil der dort liegenden Luftauslassöffnungen austreten zu lassen. Ist ein Teillastbetrieb eingestellt, bei dem ein relativ kleiner Volumenstrom in den Lufteinlass einströmt, so wird die Position der verstellbaren Drosseleinrichtung näher zum Lufteinlass hin verlagert, um stromaufwärts die gewünschte Druckerhöhung für einen Mischluftbetrieb herbeizuführen.It is preferably provided that the adjusting device is a throttle device which is adjustable in its position present in the hollow body. Due to the throttling effect of the throttle device results before her an increase in the pressure of the air, ie upstream of the throttle device increases inside the hollow cylinder, the air pressure (dynamic pressure), wherein the position of the throttle device is adjusted depending on the size of the partial load. Is a part-load operation with a relatively large Volumetric flow, it is sufficient to move the throttle device in a relatively distant position to the air inlet, wherein upstream of it, the air pressure is sufficient to allow mixed air from at least a portion of the air outlet openings lying there. If a partial load operation is set in which a relatively small volume flow flows into the air inlet, the position of the variable throttle device is displaced closer to the air inlet in order to bring about the desired pressure increase for a mixed air operation upstream.
Selbstverständlich ist es auch möglich, eine Stelleinrichtung einzusetzen, die sowohl eine Verstellung im Luftdurchlassquerschnitt ermöglicht, als auch in der Position innerhalb des Hohlkörpers verlagerbar ist.Of course, it is also possible to use an adjusting device which allows both an adjustment in the air passage cross-section, as well as in the position within the hollow body is displaced.
Nach einer Weiterbildung der Erfindung ist vorgesehen, dass die dem Lufteinlass gegenüberliegende Stirnfläche als Boden ausgebildet ist, wobei der Boden geschlossen oder im Wesentlichen geschlossen ist. Das Merkmal des geschlossenen Bodens soll insbesondere verdeutlichen, dass zwingend kein verstellbarer Boden erforderlich ist (allerdings bei einem speziellen Ausführungsbeispiel der Erfindung dennoch vorhanden sein könnte). Wird im Stand der Technik der Heizbetrieb durchgeführt, so wird bei den bekannten Luftauslässen der Boden geöffnet. Diese Umschaltung, also die Öffnung des Bodens und das Schließen des Bodens ist beim Gegenstand der Erfindung nicht erforderlich. Dennoch lassen sich alle Betriebsarten (Lüften, Kühlen, Heizen) mit der erfindungsgemäßen Vorrichtung durchführen, sowohl bei Volllast als auch bei Teillast, und aufgrund der vorstehend erwähnten, bei der Erfindung vorliegenden Luftverteilung ist stets (also in den genannten drei Betriebsarten und sowohl bei Volllast als auch bei Teillast) ein angenehmes Raumklima bewirkt. Die vorstehend erwähnte Formulierung des "im Wesentlichen geschlossenen" Bodens soll verdeutlichen, dass auch dann, wenn im Boden mindestens eine Luftaustrittsöffnung vorhanden ist, gleichwohl der erfindungsgemäße Erfolg erzielt wird und dass ein gewisser Luftaustritt im Bereich des Bodens gleichwohl zum erfindungsgemäßen Ergebnis führt. Besonders bevorzugt ist bei der Erfindung die Ausführungsform, dass der Boden komplett geschlossen ist.According to a development of the invention, it is provided that the end face lying opposite the air inlet is designed as a bottom, wherein the bottom is closed or substantially closed. The feature of the closed bottom is intended to clarify in particular that absolutely no adjustable floor is required (although, in a specific embodiment of the invention, however, could still be present). If the heating operation is carried out in the prior art, the floor is opened in the known air outlets. This switching, so the opening of the soil and the closing of the soil is not required in the subject of the invention. Nevertheless, all operating modes (ventilation, cooling, heating) can be carried out with the device according to the invention, both at full load and at partial load, and due to the above-mentioned, present in the invention air distribution is always (ie in the above three modes and both at full load as well as at partial load) causes a pleasant room climate. The above-mentioned formulation of the "substantially closed" floor should clarify that even if at least one air outlet opening is present in the ground, nevertheless the success of the invention is achieved and that a certain air leakage in the region of the bottom nevertheless leads to the result of the invention. Particularly preferred in the invention, the embodiment that the bottom is completely closed.
Nach einer Weiterbildung der Erfindung ist vorgesehen, dass der Hohlkörper eine von dem Lufteinlass zum Boden führende Längsachse aufweist und dass die Verstellung der Position der Drosseleinrichtung entlang der Längsachse des Hohlkörpers erfolgt. Da sich der Lufteinlass an dem einen Ende des Hohlkörpers befindet und - vorzugsweise gegenüberliegend - der Boden an dem anderen Ende des Hohlkörpers, die Längsachse von dem einen Ende zu dem anderen Ende verläuft, wird die Verstellung entlang der Längsachse also dazu führen, dass sich die Drosseleinrichtung stellungsabhängig entweder näher zum Lufteinlass und weiter entfernt zum Boden beziehungsweise näher zum Boden und damit weiter entfernt zum Lufteinlass befindet. Es sind beliebig viele Zwischenpositionen kontinuierlich anfahrbar. Stets ist dabei der Mischluftbetrieb zu realisieren.According to a development of the invention it is provided that the hollow body has a leading from the air inlet to the bottom longitudinal axis and that the adjustment of the Position of the throttle device takes place along the longitudinal axis of the hollow body. Since the air inlet is located at one end of the hollow body and - preferably opposite - the bottom at the other end of the hollow body, the longitudinal axis from the one end to the other end, the adjustment along the longitudinal axis so cause the Throttle device depending position either closer to the air inlet and further away to the ground or closer to the ground and thus further away from the air inlet. Any number of intermediate positions can be approached continuously. It is always the mixed air operation to realize.
Es ist vorteilhaft, wenn die Stelleinrichtung zwischen einer oberen und einer unteren Zone des Hohlkörpers angeordnet ist. Diese Aussage ist derart zu verstehen, dass oberhalb der Stelleinrichtung, also stromaufwärts von dieser die obere Zone des Hohlkörpers ausgebildet wird und unterhalb der Stelleinrichtung, also stromabwärts der Stelleinrichtung, der untere Zone des Hohlkörpers. Ist die Stelleinrichtung im Hinblick auf ihre Ortsposition entlang der Längsachse des Hohlkörpers verlagerbar, so verändert sich mit der Verlagerung der Stelleinrichtung die jeweilige Zone, zum Beispiel wird die obere Zone dadurch größer und dementsprechend die untere Zone kleiner beziehungsweise umgekehrt. Von diesen Zonen ist zu unterscheiden, dass die erwähnten Bereiche, also der obere Bereich und der untere Bereich des Hohlkörpers den Austritt der Luftart kennzeichnet. Im oberen Bereich des Hohlkörpers tritt Mischluft aus und im unteren Bereich Quellluft. Wenn die Druckverhältnisse im Innern des Hohlkörpers derart gestaltet sind, dass oberhalb, also stromaufwärts der Stelleinrichtung der Druck in der oberen Zone nicht ausreicht, um dort überall Mischluft austreten zu lassen, so kann die obere Zone unterteilt sein in einen oberen Bereich, aus dem Mischluft austritt, und in einen darunter liegenden Teil, das zum unteren Bereich gehört, aus dem Quellluft austritt. Unterhalb der Stelleinrichtung tritt dann ebenfalls Quellluft aus. Demzufolge ändert sich die Funktion entsprechender Luftauslassöffnungen, indem sie entweder als Mischluftauslassöffnungen oder als Quellluftauslassöffnungen dienen. Von den erläuterten Begriffen "Zone" und "Bereich" ist ferner der Begriff "Abschnitt" zu unterscheiden. Wie nachstehend noch erläutert wird, ist ein oberer Abschnitt und ein unterer Abschnitt des Hohlkörpers vorhanden, wobei die Bezeichnung "Abschnitt" die Bauausführung des Luftauslasses betrifft, nämlich in mindestens einem Ausführungsbeispiel mit zum Beispiel polygonem Zylinder (oberer Abschnitt) und zum Beispiel Kreis-Zylinder (unterer Abschnitt).It is advantageous if the adjusting device is arranged between an upper and a lower zone of the hollow body. This statement is to be understood in such a way that the upper zone of the hollow body is formed above the adjusting device, that is to say upstream of the latter, and below the adjusting device, that is to say downstream of the adjusting device, the lower zone of the hollow body. If the adjusting device is displaceable with respect to its spatial position along the longitudinal axis of the hollow body, then the respective zone changes with the displacement of the adjusting device, for example the upper zone becomes larger and accordingly the lower zone becomes smaller or vice versa. It must be distinguished from these zones that the mentioned areas, ie the upper area and the lower area of the hollow body, characterize the exit of the air type. In the upper part of the hollow body occurs mixed air and in the lower part of the source air. If the pressure conditions in the interior of the hollow body are designed such that above, ie upstream of the actuator, the pressure in the upper zone is insufficient to allow mixed air to escape everywhere, the upper zone can be subdivided into an upper region from the mixed air emerges, and in an underlying part, which belongs to the lower area, emerges from the source air. Below the adjusting device then also exits source air. As a result, the function of respective air outlet openings changes by serving either as mixed air outlet openings or as source air outlet openings. From the explained terms "zone" and "area", the term "section" is to be further distinguished. As will be explained below, there is an upper portion and a lower portion of the hollow body, the term "portion" relating to the construction of the air outlet, namely at least one Embodiment with, for example, polygonal cylinder (upper portion) and, for example, circular cylinder (lower portion).
Nach einer Weiterbildung der Erfindung ist vorgesehen, dass die Stelleinrichtung eine abhängig vom Lastzustand manuell, motorisch und/oder selbsttätig im Hinblick auf den Luftdurchlassquerschnitt und/oder die örtliche Position verstellbare Drosseleinrichtung ist. "Motorisch" bedeutet, dass der Luftdurchlassquerschnitt und/oder die Ortsposition mittels einer Antriebseinrichtung, beispielsweise einer elektrischen Antriebseinrichtung, verändert wird. Vorzugsweise ist mindestens ein Sensor vorgesehen, der den Lastfall, also die Volllast oder die entsprechende Teillast sensiert und dementsprechend motorisch eingreift. Im Falle einer manuellen Verstellung der Drosseleinrichtung tritt anstelle der Antriebseinrichtung eine vom Anwender manuell aufzubringende Verstellung. Im Falle der sich selbsttätig verstellbaren Drosseleinrichtung, wobei dieser Fall besonders bevorzugt ist, erfolgt die Verstellung im Hinblick auf den Luftdurchlassquerschnitt und/oder die Ortsposition ohne dass eine Antriebseinrichtung vorliegt und ohne eine manuelle Betätigung. Vielmehr wird ein Parameter des vorliegenden Lastfalls, insbesondere ein aus dem zugeführten Volumenstrom resultierender Parameter, besonders bevorzugt der sich einstellende Druck im Inneren des Hohlkörpers, verwendet, um die Verstellung der Drosseleinrichtung hinsichtlich ihres Luftdurchlassquerschnitts und/oder ihrer Ortsposition selbsttätig vorzunehmen. Hierzu wirkt der Druck auf ein Drosselelement der Drosseleinrichtung und beeinflusst die Einstellung des Luftdurchlassquerschnitts (insbesondere zum Beispiel durch Beaufschlagung einer in eine Vorzugsposition vorgespannten Drosselklappe) und/oder der Druck verlagert das Drosselelement (insbesondere zum Beispiel durch Ortsverlagerung des in eine Vorzugsrichtung vorgespannten Drosselelements).According to a development of the invention, provision is made for the adjusting device to be a throttle device which is manually, motorically and / or automatically adjustable with regard to the air passage cross section and / or the local position, depending on the load state. "Motorized" means that the air passage cross section and / or the spatial position is changed by means of a drive device, for example an electric drive device. Preferably, at least one sensor is provided, which senses the load case, ie the full load or the corresponding partial load and engages accordingly by a motor. In the case of a manual adjustment of the throttle device occurs instead of the drive means manually applied by the user adjustment. In the case of the automatically adjustable throttle device, wherein this case is particularly preferred, the adjustment takes place with regard to the air passage cross section and / or the location position without a drive device is present and without a manual operation. Rather, a parameter of the present load case, in particular a resulting from the supplied flow rate parameter, particularly preferably the self-adjusting pressure inside the hollow body, used to make the adjustment of the throttle device with respect to their air passage cross-section and / or their spatial position automatically. For this purpose, the pressure acts on a throttle element of the throttle device and influences the setting of the air passage cross-section (in particular, for example, by acting on a throttle valve biased into a preferred position) and / or the pressure displaces the throttle element (in particular, for example, by displacement of the throttle element biased in a preferred direction).
Eine Weiterbildung der Erfindung sieht vor, dass die Stelleinrichtung entgegen der Kraft eines Kraftspeichers positionsverschieblich entlang der Längsachse, insbesondere in Richtung auf den Boden, im Hohlkörper gelagert ist. Die Stelleinrichtung wird von der Kraft des Kraftspeichers beaufschlagt und dadurch bei Nulllast in eine vorgegebene Position gedrängt, insbesondere eine mit Anschlag versehene Ausgangsposition. Wird die Last erhöht, so führt dies dazu, dass der Luftdruck im Innern des Hohlkörpers, und zwar auf der stromaufwärts liegenden Seite der Stelleinrichtung ansteigt, mit der Folge, dass hierdurch die Stelleinrichtung entgegen der Kraft des Kraftspeichers verlagert wird. In Abhängigkeit des Drucks (Staudruck) wird sich somit selbsttätig eine entsprechende Position der Stelleinrichtung ergeben. Je höher der Lastfall, umso weiter verändert sich die Position von der Ausgangsposition des Nulllastfalls, wobei vorzugsweise eine Verschiebung der Stelleinrichtung entlang der Längsachse, und zwar in Richtung auf den Boden, also nach unten, erfolgt. Damit werden entsprechend der Verschiebung der Verstelleinrichtung zumindest ein Anteil der stromaufwärts zur Stelleinrichtung liegenden Luftauslassöffnungen zu Mischluftauslassöffnungen. Alle anderen Luftauslassöffnungen werden Quellluftauslassöffnungen.A development of the invention provides that the adjusting device is mounted positionally displaceable against the force of an energy storage device along the longitudinal axis, in particular in the direction of the ground, in the hollow body. The adjusting device is acted upon by the force of the force accumulator and thereby urged at zero load in a predetermined position, in particular provided with a stop starting position. If the load is increased, this causes the air pressure in the interior of the hollow body, namely on the upstream side of the actuator increases, with the result that that thereby the adjusting device is displaced against the force of the energy storage device. Depending on the pressure (dynamic pressure) will thus automatically result in a corresponding position of the adjusting device. The higher the load case, the further the position changes from the starting position of the zero load case, wherein preferably a displacement of the actuating device along the longitudinal axis, in the direction of the ground, that is, down, takes place. Thus, according to the displacement of the adjusting device, at least a portion of the air outlet openings lying upstream of the adjusting device become mixed air outlet openings. All other air vents become source air vents.
Nach einer Weiterbildung der Erfindung ist vorgesehen, dass die Drosseleinrichtung mindestens ein im Luftdurchlassquerschnitt verstellbares Drosselelement aufweist. Vorzugsweise kann das Drosselelement manuell, motorisch und/oder selbsttätig, insbesondere entgegen der Kraft einer Kraftspeichervorrichtung, im Luftdurchlassquerschnitt verstellbar sein. In Abhängigkeit von der Einstellung des Luftdurchlassquerschnitts stellen sich die Druckverhältnisse im Hohlkörper ein, wobei derart vorgegangen wird, dass stromaufwärts des Drosselelements der Druck in dem oberen Bereich hinreichend groß ist, um Mischluft aus den dort liegenden Luftauslassöffnungen auszubringen. Aus allen anderen Luftauslassöffnungen, insbesondere den stromabwärts des Drosselelements gelegenen Luftauslassöffnungen wird aufgrund des niedrigeren Luftdrucks Quellluft ausgegeben. Für die Begriffe "manuell, motorisch und selbsttätig" gelten die bereits vorstehend erläuterten Definitionen. Die Druckverhältnisse im Hohlkörper können sich auch derart einstellen, dass alle stromaufwärts des Drosselelements liegenden Luftauslassöffnungen Mischluft ausstoßen, das heißt der obere Bereich entspricht der oberen Zone, und dass alle stromabwärts des Drosselelements liegenden Luftauslassöffnungen Quellluft ausgeben, das heißt, der untere Bereich entspricht der unteren Zone des Hohlkörpers.According to a development of the invention, it is provided that the throttle device has at least one throttle element which is adjustable in the air passage cross section. Preferably, the throttle element can be manually, motorically and / or automatically, in particular against the force of an energy storage device, be adjustable in the air passage cross-section. Depending on the setting of the air passage cross-section, the pressure conditions in the hollow body, wherein the procedure is such that upstream of the throttle element, the pressure in the upper region is sufficiently large to deploy mixed air from the air outlet there lying. From all the other air outlet openings, in particular the air outlet openings located downstream of the throttle element, source air is emitted due to the lower air pressure. For the terms "manual, motor and automatic" the definitions already explained above apply. The pressure conditions in the hollow body can also be set such that all air outlet openings located upstream of the throttling element discharge mixed air, that is, the upper area corresponds to the upper zone, and that all the air outlet openings downstream of the throttling element output source air, that is, the lower area corresponds to the lower area Zone of the hollow body.
Wie bereits erläutert, erfolgt die Verschiebung bezüglich der Position und/oder die Verstellung bezüglich des Luftdurchlassquerschnitts der Stelleinrichtung, insbesondere des Drosselelements, durch eine aus dem auf die Stelleinrichtung, insbesondere das Drosselelement, wirkenden Staudruck der Luft resultierenden Kraft, also den im Inneren des Hohlkörpers vorliegenden Druckverhältnissen stromaufwärts beziehungsweise stromabwärts der Stelleinrichtung.As already explained, the displacement with respect to the position and / or the adjustment with respect to the air passage cross section of the adjusting device, in particular of the throttle element, by a force acting on the adjusting device, in particular the throttle element, back pressure of the air resulting force, ie the inside of the hollow body present pressure conditions upstream or downstream of the adjusting device.
Bevorzugt kann vorgesehen sein, dass das Drosselelement eine positionsverschiebliche Platte, insbesondere ein Teller, eine randseitig verschwenkbar gelagerte Klappe, eine mittig oder etwa mittig gelagerte Doppelklappe, eine Blende und/oder eine Schmetterlingsklappe ist. Die positionsverschiebliche Klappe, insbesondere der Teller, wirken quasi als Staukörper, wobei durch den Staudruck die Positionsverlagerung, vorzugsweise entgegen der Kraft des Kraftspeichers erfolgt. Bei der erwähnten randseitig verschwenkbar gelagerten Klappe wird eine Drosselung des Luftstroms innerhalb des Hohlkörpers in Abhängigkeit von dem Klappenwinkel erzeugt. Ist die Klappe geschlossen, so tritt ein Großteil der Luft in der oberen Zone des Hohlkörpers aus. Ein verbleibender, kleiner Teil der Luft tritt stromabwärts der Klappe, also in der unteren Zone aus. Die Abmessungen der Klappe sind derart gewählt, dass kein vollständiger Verschluss des Luftweges erfolgt, sondern in der geschlossenen Stellung der Klappe noch ein Luftdurchtritt stattfinden kann. Alternativ kann auch derart vorgegangen sein, dass die Klappe in einer Schließstellung zwar den Luftweg vollständig schließen würde, dass die Klappe jedoch diese Endstellung nicht erreicht, sondern in der maximal geschlossenen Stellung dennoch leicht geöffnet bleibt. Bei vollständig geöffneter Klappe kommt es auf den Druckverlauf entlang der Längsachse des Hohlkörpers an, welche der Luftauslassöffnungen als Mischluftauslassöffnungen und welche als Quellluftauslassöffnungen wirken.Preferably, it may be provided that the throttle element is a position-displaceable plate, in particular a plate, a flap pivotally mounted on the edge, a centrally or approximately centrally mounted double flap, an aperture and / or a butterfly flap. The position-displaceable flap, in particular the plate, act more or less as a bluff body, whereby the positional displacement, preferably counter to the force of the force accumulator, takes place due to the dynamic pressure. In the above-mentioned pivotally mounted flap, a throttling of the air flow within the hollow body is generated as a function of the flap angle. If the flap is closed, a large part of the air in the upper zone of the hollow body emerges. A remaining, small part of the air exits downstream of the flap, ie in the lower zone. The dimensions of the flap are chosen such that no complete closure of the airway takes place, but in the closed position of the flap still an air passage can take place. Alternatively, it is also possible to proceed in such a way that the flap would completely close the air path in a closed position, but that the flap does not reach this end position, but nevertheless remains slightly open in the maximally closed position. When the flap is fully open, the pressure curve along the longitudinal axis of the hollow body, which acts as mixed air outlet openings and which acts as source air outlet openings, is important.
Es kann eine mittig oder etwa mittig gelagerte Doppelklappe als Drosselelement vorgesehen sein. Eine derartige Doppelklappe ist wippenartig gestaltet. Die erwähnte Blende ist vorzugsweise quer zur Längsachse des Hohlkörpers angeordnet. Die Schmetterlingsklappe weist eine mittige oder etwa mittige Lagerstelle für die Klappenblätter auf. Hinsichtlich der positionsverschieblichen Platte, insbesondere dem Teller, der randseitig verschwenkbar gelagerten Klappe und der Schmetterlingsklappe ist es denkbar, jeweils ein Kraftspeicher/eine Kraftspeichervorrichtung einzusetzen, das heißt, nur entgegen der Kraft des Kraftspeichers/der Kraftspeichervorrichtung erfolgt eine entsprechend weite Ortsverlagerung und/oder öffnet sich entsprechend weit der Luftdurchlassquerschnitt des Drosselelements.It may be provided as a throttle element a centrally or approximately centrally mounted double flap. Such a double flap is designed like a rocker. The mentioned aperture is preferably arranged transversely to the longitudinal axis of the hollow body. The butterfly flap has a central or approximately central bearing point for the damper blades. With regard to the position-displaceable plate, in particular the plate, the edge pivotally mounted flap and butterfly flap, it is conceivable to use each of a force storage / a force storage device, that is, only against the force of the force storage / the energy storage device is a correspondingly wide displacement and / or opens correspondingly far the air passage cross-section of the throttle element.
Insbesondere kommen als Kraftspeicher und/oder Kraftspeichervorrichtung eine Zugfeder, eine Druckfeder, eine Drehfeder, insbesondere Wendelfeder oder Schneckenfeder, zum Einsatz. So kann beispielsweise die Druckfeder die positionsverschiebliche Platte beaufschlagen. Hierbei befindet sich die Druckfeder auf der stromabwärts liegenden Seite der Platte. Die erwähnte Drehfeder kann auf die randseitig verschwenkbar gelagerte Klappe oder auf die Schmetterlingsklappe wirken und die entsprechende Klappe jeweils in Schließrichtung drängen. Durch den erhöhten Druck stromaufwärts der jeweiligen Klappe wird diese in eine entsprechende Offenstellung unter Beaufschlagung der Kraftspeichervorrichtung gedrängt. Bei der Schmetterlingsklappe kann die Drehfeder auch von mehreren Drehfederelementen gebildet sein, beispielsweise um jeweils eine Klappe des Klappenpaars zu beaufschlagen.In particular, come as a power storage and / or power storage device, a tension spring, a compression spring, a torsion spring, in particular coil spring or worm spring used. For example, the compression spring can act on the positionally displaceable plate. Here, the compression spring is located on the downstream side of the plate. The aforementioned torsion spring can act on the edge pivotally mounted flap or on the butterfly flap and urge the corresponding flap in each case in the closing direction. Due to the increased pressure upstream of the respective flap, it is forced into a corresponding open position under the action of the force storage device. In the butterfly flap, the torsion spring can also be formed by a plurality of torsion spring elements, for example, to each act on a flap of the pair of flaps.
Bevorzugt ist vorgesehen, dass der Kraftspeicher eine Zugfeder aufweist, die mit einem biegeschlaffen Zugmittel und eine das biegeschlaffe Zugmittel umlenkende Umlenkvorrichtung, insbesondere um 180° umlenkende Umlenkvorrichtung, verbunden ist. Das biegeschlaffe Zugmittel ist auf der stromaufseitigen Seite der positionsverschieblichen Platte befestigt und führt zu einem Ende der Zugfeder, deren anderes Ende am Hohlkörper befestigt ist. Dabei kann eine Umlenkung um 180° vorgesehen sein. Insbesondere dann, wenn diese Umlenkung, vorzugsweise um 180°, vorgesehen ist, kann ein Ausgleichsgewicht am Zugmittel befestigt sein, das zumindest teilweise ein Ausgleich des Gewichts des Drosselelements, also beispielsweise der positionsverschieblichen Platte, vornimmt. In Abhängigkeit des Ausgleichgewichts lässt sich eine Kalibrierung der Anordnung durchführen.It is preferably provided that the energy accumulator has a tension spring, which is connected to a pliable traction means and a deflecting device deflecting the pliable traction means, in particular deflecting device deflecting by 180 °. The pliable traction means is mounted on the upstream side of the position-displaceable plate and leads to one end of the tension spring whose other end is fixed to the hollow body. In this case, a deflection can be provided by 180 °. In particular, when this deflection, preferably provided by 180 °, a balance weight can be attached to the traction means, which at least partially compensates for the weight of the throttle element, so for example the position displaceable plate. Depending on the balance weight can be carried out a calibration of the arrangement.
Nach einer Weiterbildung der Erfindung ist vorgesehen, dass der Hohlkörper - entlang der Längsachse gesehen - zwei Abschnitte aufweist, wobei der obere Abschnitt von einem polygonen Zylinder, insbesondere Acht-Eck-Zylinder, und der untere Abschnitt von einem Kreis-Zylinder gebildet ist. Die Anordnung ist dabei vorzugsweise derart getroffen, dass die Mantelfläche des polygonen Zylinders erste Luftauslassöffnungen aufweist und dass der Kreis-Zylinder zweite Luftauslassöffnungen in seiner Mantelfläche aufweist. Die ersten Luftauslassöffnungen unterscheiden sich im Hinblick auf die Größe von den zweiten Luftauslassöffnungen. Dabei ist die Anordnung derart getroffen, dass sich die im Kreis-Zylinder liegenden zweiten Luftauslassöffnungen entlang der Längsachse von oben nach unten hin, also in Richtung auf den Boden, verkleinern. Die ersten Luftauslassöffnungen, die an der Mantelfläche des polygonen Zylinders liegen, weisen alle denselben Durchmesser auf. Insbesondere ist vorgesehen, dass der Durchmesser der ersten Luftauslassöffnungen kleiner ist als der Durchmesser der kleinsten zweiten Luftauslassöffnungen. Alternativ oder zusätzlich kann die vorstehende Erläuterung zu den Wirkungen der Größen der Luftauslassöffnungen auch dadurch realisiert werden, dass die Anzahl der in einem bestimmten Flächeninhalt liegenden Luftauslassöffnungen entsprechend groß gewählt ist.According to a development of the invention it is provided that the hollow body - as seen along the longitudinal axis - has two sections, wherein the upper portion of a polygonal cylinder, in particular eight-corner cylinder, and the lower portion is formed by a circular cylinder. The arrangement is preferably made such that the lateral surface of the polygonal cylinder has first air outlet openings and that the circular cylinder has second air outlet openings in its lateral surface. The first air outlet openings differ in terms of on the size of the second air outlet openings. In this case, the arrangement is such that the lying in the circular cylinder second air outlet along the longitudinal axis from top to bottom, ie in the direction of the ground, zoom out. The first air outlet openings, which lie on the lateral surface of the polygonal cylinder, all have the same diameter. In particular, it is provided that the diameter of the first air outlet openings is smaller than the diameter of the smallest second air outlet openings. Alternatively or additionally, the above explanation of the effects of the sizes of the air outlet openings can also be realized in that the number of air outlet openings lying in a certain surface area is chosen to be correspondingly large.
Im Hinblick auf die erwähnten Luftauslassöffnungen ist anzumerken, dass bei jedem der erwähnten Ausführungsbeispiele vorgesehen sein kann, dass anstelle von Öffnungen Düsen vorgesehen sind, wobei auch bei den Düsen entsprechende Öffnungsquerschnitte vorliegen.With regard to the mentioned air outlet openings, it should be noted that in each of the mentioned exemplary embodiments it may be provided that nozzles are provided instead of openings, wherein corresponding opening cross-sections are also present in the nozzles.
Bezüglich der Ausführungsform mit polygonem Zylinder, insbesondere Acht-Eck-Zylinder, und Kreis-Zylinder, wird bei der Betriebsführung stets derart vorgegangen, dass mittels der Stelleinrichtung die Druckverhältnisse derart im Innern des Hohlkörpers eingestellt werden, dass aus den Luftauslassöffnungen des polygonen Zylinders Mischluft austritt und aus den Luftauslassöffnungen des Kreis-Zylinders Quellluft. Dies gilt bei Stelleinrichtungen, die im Luftdurchlassquerschnitt verstellbar sind und/oder dann, wenn die Stelleinrichtung verschieblich im Hohlkörper angeordnet ist. Ihre Stellung wird dann dementsprechend insbesondere selbsttätig eingenommen, um die genannten Luftarten aus den jeweiligen Abschnitten, also polygoner Zylinder und Kreis-Zylinder, austreten zu lassen.With regard to the embodiment with a polygonal cylinder, in particular eight-corner cylinder, and circular cylinder, the operating procedure is always such that by means of the adjusting device, the pressure conditions are set in the interior of the hollow body that emerges from the air outlet openings of the polygonal cylinder mixed air and from the air outlet openings of the circular cylinder source air. This applies to adjusting devices which are adjustable in the air passage cross-section and / or when the adjusting device is arranged displaceably in the hollow body. Their position is then taken accordingly automatically, in particular, to let the mentioned types of air from the respective sections, ie polygonal cylinder and circular cylinder exit.
Nach einer Weiterbildung der Erfindung ist vorgesehen, dass im unteren Abschnitt ein Innenzylinder angeordnet ist, der Luftdurchlassöffnungen aufweist. Die dort im Innenzylinder befindliche Luft wird also zunächst die Luftdurchlassöffnungen des Innenzylinders passieren, dann zu den Luftauslassöffnungen des unteren Abschnitts des Hohlkörpers gelangen und dort austreten, nämlich als Quellluft. Der Innenzylinder weist zum Kreis-Zylinder einen radialen Abstand auf. Der Innenzylinder mit seinen Luftdurchlassöffnungen dient insbesondere zur Strömungsvergleichsmäßigung und insbesondere auch dazu, dass ein Geschwindigkeitsabbau der Luft erfolgt.According to a development of the invention, it is provided that in the lower section an inner cylinder is arranged, which has air passage openings. The air located there in the inner cylinder will thus first pass through the air passage openings of the inner cylinder, then get to the air outlet openings of the lower portion of the hollow body and exit there, namely as source air. The inner cylinder has a radial distance to the circular cylinder. The inner cylinder with his Air passage openings are used in particular for flow compensation and in particular also for a speed reduction of the air takes place.
Nach einer Weiterbildung der Erfindung ist vorgesehen, dass sich die freien Querschnitte der Luftauslassöffnungen von zumindest einem Teil des Hohlkörpers und/oder die freien Querschnitte der Durchlassöffnungen des Innenzylinders - in Richtung der Längsachse zum Lufteinlass zum Boden gesehen - verkleinern. Damit wird sichergestellt, dass in dem oberen und unteren Bereich nur die jeweilige Strömungsform (Mischluft oder Quellluft) austritt. Alternativ oder zusätzlich kann vorgesehen sein, dass die vorstehende Erläuterung zu den Wirkungen der freien Querschnitte der Luftauslassöffnungen beziehungsweise Durchlassöffnungen auch dadurch realisiert werden, dass die Anzahl der in einem bestimmten Flächeninhalt liegenden Luftauslassöffnungen entsprechend groß gewählt ist.According to a development of the invention, it is provided that the free cross sections of the air outlet openings of at least a part of the hollow body and / or the free cross sections of the passage openings of the inner cylinder - viewed in the direction of the longitudinal axis to the air inlet to the bottom - shrink. This ensures that in the upper and lower area only the respective flow form (mixed air or source air) exits. Alternatively or additionally, it can be provided that the above explanation of the effects of the free cross sections of the air outlet openings or passage openings are also realized by the number of air outlet openings lying in a certain area being chosen to be correspondingly large.
Bevorzugt ist vorgesehen, dass zumindest in einem oberen Teil des unteren Abschnitts des Hohlkörpers ein Blendenring oder mehrere, in Richtung der Längsachse voneinander beabstandete Blendenringe zwischen dem Hohlkörper und dem Innenzylinder angeordnet ist/sind. Die Blendenringe, die quer, insbesondere rechtwinklig zur Längsachse des Hohlzylinders stehen, verhindern, dass die Luft in diesem Teil aus den Luftauslassöffnungen schräg nach unten ausgeblasen wird. Sie haben also Luftleitfunktion, derart, dass bevorzugt in horizontaler Richtung ausgeblasen wird oder in etwa horizontaler Richtung, also möglichst rechtwinklig zur Längsachse oder etwa rechtwinklig zur Längsachse.It is preferably provided that at least in an upper part of the lower portion of the hollow body, an aperture ring or more, in the direction of the longitudinal axis spaced diaphragm rings between the hollow body and the inner cylinder is / are arranged. The diaphragm rings, which are transverse, in particular perpendicular to the longitudinal axis of the hollow cylinder, prevent the air in this part from the air outlet openings is blown obliquely downward. So they have air guiding function, such that preferably blown in the horizontal direction or in approximately horizontal direction, that is as perpendicular as possible to the longitudinal axis or approximately at right angles to the longitudinal axis.
Vorzugsweise ist vorgesehen, dass der Lufteinlass an einem Anschlussstutzen gebildet ist. Über den Anschlussstutzen lässt sich der Luftauslass sehr einfach an ein Rohrsystem eines Luftverteilungsnetzes anschließen.It is preferably provided that the air inlet is formed on a connecting piece. The air outlet can be very easily connected to a pipe system of an air distribution network via the connecting piece.
Eine Weiterbildung der Erfindung sieht vor, dass sich die Drosseleinrichtung, insbesondere zumindest im Nulllastbetrieb, zwischen dem oberen und dem unteren Abschnitt des Hohlkörpers befindet. Hierauf wurde vorstehend schon eingegangen. Der Nulllastbetrieb kennzeichnet die Situation, dass dem Luftauslass keine Luft zugeführt wird.A development of the invention provides that the throttle device, in particular at least in no-load operation, is located between the upper and the lower section of the hollow body. This has already been discussed above. The no-load operation indicates the situation that no air is supplied to the air outlet.
Es ist vorteilhaft, wenn das als Platte, insbesondere Teller, ausgebildete Drosselelement einen Umfangsrand aufweist, der mit Abstand zur Innenseite des Hohlkörpers und/oder zur Innenseite des Innenzylinders liegt. Dieser Abstand stellt eine Verengung dar, also eine entsprechende Drosselstelle.It is advantageous if the throttle element designed as a plate, in particular a plate, has a peripheral edge which lies at a distance from the inside of the hollow body and / or to the inside of the inner cylinder. This distance represents a constriction, so a corresponding throttle point.
Vorzugsweise ist vorgesehen, dass die Platte, insbesondere der Teller, quer, insbesondere rechtwinklig, zur Längsachse des Hohlkörpers verläuft. Hierauf wurde schon eingegangen.It is preferably provided that the plate, in particular the plate, extends transversely, in particular at right angles, to the longitudinal axis of the hollow body. This has already been discussed.
Ferner ist es vorteilhaft, wenn die Stelleinrichtung einen Stellbetrieb oder einen Regelbetrieb durchführt. Beim Stellbetrieb erfolgt eine Vorgabe, die jedoch - beispielsweise bei Druckschwankungen der dem Lufteinlass zugeführten Luft - nicht ausgeglichen werden. Im Regelbetrieb wird die Stelleinrichtung im Hinblick auf ihre Ortsposition und/oder ihren Luftdurchlassquerschnitt entsprechend der aktuellen Situation stets angepasst.Furthermore, it is advantageous if the actuating device carries out a control operation or a control operation. When setting a default, which, however, - are not compensated - for example, in pressure fluctuations of the air inlet air supplied. In normal operation, the adjusting device is always adapted with regard to its spatial position and / or its air passage cross section according to the current situation.
Die Erfindung betrifft ferner ein Verfahren zum Betreiben eines in Form eines Hohlkörpers ausgebildeten Luftauslasses, insbesondere wie es vorstehend nach den verschiedenen Varianten beschrieben ist, wobei einem oberen Ende des Hohlkörpers zugeführte Luft aus oder im Wesentlichen aus Luftauslassöffnungen an einer Mantelfläche des Hohlkörpers austritt, wobei vorgesehen ist, dass in Abhängigkeit der Größe des Volumenstroms der zugeführten Luft der Luftdruck im Innern des Hohlkörpers derart gesteuert oder geregelt wird, dass aus den in einem oberen Bereich des Hohlkörpers gelegenen Luftauslassöffnungen stets Mischluft austritt und vorzugsweise dass aus den in einem unteren Bereich des Hohlkörpers gelegene Luftauslassöffnungen stets Quellluft austritt.The invention further relates to a method for operating an air outlet formed in the form of a hollow body, in particular as described above according to the various variants, wherein an upper end of the hollow body supplied air exits or substantially from air outlet openings on a lateral surface of the hollow body, wherein provided is that depending on the size of the volume flow of the supplied air, the air pressure inside the hollow body is controlled or regulated so that always emerges from the located in an upper region of the hollow body air outlet openings mixed air and preferably that of which located in a lower portion of the hollow body Air outlet openings always escape source air.
Ferner kann vorgesehen sein, dass der Luftdruck im Hohlkörper mittels Einstellung eines Luftdurchlassquerschnitts einer/der im Innern des Hohlkörpers angeordneten Stelleinrichtung und/oder mittels einer örtlichen Positionseinstellung einer/der im Innern des Hohlkörpers verlagerbar angeordneten Stelleinrichtung gesteuert oder geregelt wird. Als Stelleinrichtung wird vorzugsweise eine Drosseleinrichtung eingesetzt.Furthermore, it can be provided that the air pressure in the hollow body is controlled by adjusting an air passage cross section of one of the adjusting devices arranged in the interior of the hollow body and / or by means of a local position adjustment of one or more adjusting devices arranged displaceably in the interior of the hollow body is regulated. As adjusting device, a throttle device is preferably used.
Bevorzugt kann vorgesehen sein, dass in Abhängigkeit der Größe des Volumenstroms der zugeführten Luft insbesondere in einem Heizbetrieb der Luftauslass die Mischluft derart oberhalb der Quellluft ausbläst, dass sich die Mischluft über die Quellluft schiebt. Dieses Prinzip führt dazu, dass die Quellluft im Bodenbereich des Raumes, in dem sich der Luftauslass befindet, gehalten wird und somit dort ihre Wirkung, insbesondere die Heizwirkung, entfaltet. Die insbesondere warme Quellluft kann daher aufgrund der sich darüber befindenden Mischluft nicht schnell wieder aufsteigen, also an die Decke des Raumes gelangen.Preferably, it can be provided that, depending on the size of the volume flow of the supplied air, in particular in a heating mode, the air outlet blows the mixed air above the source air such that the mixed air slides over the source air. This principle causes the source air in the floor area of the room in which the air outlet is held, and thus there their effect, in particular the heating effect unfolds. The particular warm source air can therefore not quickly rise again due to the mixed air located above it, so get to the ceiling of the room.
Die Zeichnungen veranschaulichen die Erfindung anhand von Ausführungsbeispielen und zwar zeigt:
Figur 1- einen Bereich eines Raumes, insbesondere einer Industriehalle, in der sich ein Luftauslass, insbesondere Industrieluftauslass, befindet, wobei der Luftauslass auf den Boden des Raumes aufgestellt angeordnet ist,
Figur 2- eine der
Figur 1 entsprechende Anordnung, wobei der Luftauslass jedoch aufgehängt ist, also einen Abstand zum Boden des Raumes aufweist, Figur 3- eine Seitenansicht, teilweise geschnitten, des Luftauslasses,
Figur 4- eine Draufsicht auf eine Anschlussseite des Luftauslasses der
Figur 3 , Figuren 5bis 7- ein Längsschnitt durch den
Luftauslass gemäß Figur 3 , mit einer Stelleinrichtung nach einem ersten Ausführungsbeispiel, Figuren 8bis 10- unterschiedliche Ausführungsbeispiele des Luftauslasses gemäß
Figur 5 , wobei jedoch verschiedenartig gestaltete Stelleinrichtungen zum Einsatz gelangen, Figur 11- der Luftauslass gemäß
Figur 10 in unterschiedlichen Betriebsstellungen, Figur 12- eine Variante zum Ausführungsbeispiel der
Figur 11 , Figuren 13 und 14- den Raum gemäß
mit im Betrieb befindlichem Luftauslass und angedeutetem Strömungsbild bei Volllast und bei Teillast, undFigur 2 Figur 15- ein Diagramm betreffend das Betriebsverhalten des Luftauslasses in Abhängigkeit des zugeführten Volumenstroms der Luft.
- FIG. 1
- an area of a room, in particular an industrial hall, in which there is an air outlet, in particular industrial air outlet, the air outlet being arranged on the floor of the room,
- FIG. 2
- one of the
FIG. 1 corresponding arrangement, but the air outlet is suspended, ie has a distance to the bottom of the room, - FIG. 3
- a side view, partially cut, of the air outlet,
- FIG. 4
- a plan view of a connection side of the air outlet of
FIG. 3 . - FIGS. 5 to 7
- a longitudinal section through the air outlet according to
FIG. 3 , with an adjusting device according to a first embodiment, - FIGS. 8 to 10
- different embodiments of the air outlet according to
FIG. 5 but using differently designed actuators, - FIG. 11
- the air outlet according to
FIG. 10 in different operating positions, - FIG. 12
- a variant of the embodiment of
FIG. 11 . - FIGS. 13 and 14
- according to the room
FIG. 2 with operating air outlet and indicated flow pattern at full load and at partial load, and - FIG. 15
- a diagram relating to the performance of the air outlet in dependence on the supplied volume flow of air.
Die
Die
Der Hohlkörper 6 besitzt eine Längserstreckung, die gekennzeichnet ist durch eine Längsachse 13. Die Längsachse 13 verläuft von der Stirnfläche 8 zur Stirnfläche 9 und stellt eine Mittelachse des Hohlkörpers 6 dar. Bevorzugt ist der Hohlkörper 6 um die Längsachse 13 herum zylindrisch ausgebildet. Im Ausführungsbeispiel der
Aufgrund des polygonen Zylinders 16 wird die Mantelwand in diesem Abschnitt 14 des Hohlkörpers 6 von einer Vielzahl von ebenen Wandteilen 20 gebildet, die winklig zueinander angeordnet sind. In dem unteren Abschnitt 15 des Hohlkörpers liegt aufgrund der Ausbildung als Kreis-Zylinder 18 eine mit einem entsprechenden Radius umlaufende Mantelwand vor. Es sind eine Vielzahl von Luftauslassöffnungen 21 vorgesehen, die die Mantelfläche 22 des gesamten Luftauslasses 2, also des gesamten Hohlkörpers 6, durchsetzen, demgemäß im oberen Abschnitt 14 die einzelnen Wandteile 20 und im unteren Abschnitt 15 den Kreis-Zylinder 18 durchsetzen. Aus der
Im unteren Abschnitt 15 des Hohlkörpers 6 kann sich ein optionaler Innenzylinder 23 befinden, der vorzugsweise ebenfalls als Kreis-Zylinder ausgebildet ist und einen kleineren Durchmesser aufweist als der Kreis-Zylinder 18. Die Mantelfläche des Innenzylinders 23 ist mit Luftdurchlassöffnungen 24 versehen. Optional ist auch die Möglichkeit, dass sich die freien Querschnitte der Luftdurchlassöffnungen 24 von oben nach unten gesehen, also in Richtung zum Boden 12 hin, verkleinern, insbesondere entsprechend wie bei den Luftauslassöffnungen 21 des Kreis-Zylinders 18. Optional ist auch die Anordnung von Blendenringen 55 zwischen dem Kreis-Zylinder 18 und dem Innenzylinder 23 (
In einer Zwischenzone 25, die sich zwischen dem oberen Abschnitt 14 und dem unteren Abschnitt 15 des Luftauslasses 2 befindet, ist im Innern des Hohlkörpers 6 eine Stelleinrichtung 26 angeordnet, die in der
Von besonderer Bedeutung ist, dass der Luftauslass 2 in Abhängigkeit der Temperatur der in den Lufteinlass 10 eingebrachten Luft einen Heizbetrieb oder einen Kühlbetrieb durchführt. Liegt keine Temperaturbehandlung der zugeführten Luft vor, so findet eine Lüftung statt. Ferner ist von Bedeutung, wie groß der Volumenstrom der dem Lufteinlass 10 zugeführten Luft ist. Liegt Volllast vor, so weist die Größe des dem Lufteinlass zugeführten Volumenstroms einen für die Größe des Luftauslasses 2 maximalen Wert auf. Wird ein kleinerer Volumenstrom dem Lufteinlass 10 zugeführt, so arbeitet der Luftauslass 2 im Teillast-Betrieb. Der Teillast-Betrieb beinhaltet eine Vielzahl von Betriebszuständen, beispielsweise gestufte mögliche Größen der Volumenströme. Denkbar ist jedoch auch eine kontinuierlich einstellbare Größe des Volumenstroms.Of particular importance is that the
Die Erfindung ermöglicht es, im oberen Bereich 28 des Hohlkörpers 6 Mischluft auszublasen und im unteren Bereich 32 Quellluft. Der obere Bereich 28 liegt im Ausführungsbeispiel der
Bei Volllast, also bei maximalem, dem Lufteinlass 2 zugeführten, insbesondere mittels der Luftleitung 4 zugeführten Volumenstrom der Luft tritt dieser in das Innere des Luftauslasses 2 ein und - gemäß
Die
Die
Beim Ausführungsbeispiel der
Die
Aufgrund der Erfindung lassen sich sehr große Räume, wie Industriehallen, Atrien, Konzertsäle und so weiter optimal belüften beziehungsweise temperieren, wobei der Betrieb mit konstantem Volumenstrom oder auch mit variablem Volumenstrom erfolgen kann und dabei unter Volllast und/oder unter Teillast möglich ist. Es lässt sich ein optimales Lüftungsergebnis in allen Lastfällen bei sehr hohem thermischem Komfort auch in geringem Abstand vom Luftauslass 2 erzielen. Die Erfindung ermöglicht in allen Lastfällen eine Mischlüftung kombiniert mit einer Quelllüftung. Die Mischlüftung weist vorzugsweise induktive Einzelstrahlen auf, die aus den Luftauslassöffnungen 21 austreten. Um den erwähnten Volllastfall oder Teillastfall einstellen zu können, ist es denkbar, dass stromaufwärts vor dem Luftauslass 2 ein verstellbares Drosselelement angeordnet ist, das entsprechend der gewünschten Anforderungen verstellt werden kann. Bei dem erfindungsgemäßen Luftauslass liegen quasi zwei lufttechnisch in Reihe geschaltete Luftauslässe zum Lüften, Heizen und/oder Kühlen mit zwischengeschaltetem Drosselelement vor, nämlich der eine Luftauslass für Mischluft und der andere Luftauslass für Quellluft, wobei keine aufwendigen Maßnahmen zur Umschaltung eines Strömungsprofils oder dergleichen notwendig sind. Aufgrund der Erfindung reicht es zur Abdeckung der in Praxis vorkommenden Einsatzfälle aus, nur etwa drei Baugrößen des Luftauslasses anzubieten.Due to the invention, very large rooms, such as industrial halls, atria, concert halls and so on can be optimally ventilated or tempered, the operation can be done with constant flow or variable volume flow and is possible under full load and / or under partial load. An optimal ventilation result in all load cases with very high thermal comfort even at a small distance from the
Im Hinblick auf das Ausführungsbeispiel der
Alternativ kann jedoch auch vorgesehen sein, dass der Hohlkörper 7 keine derartige konstruktive Unterteilung in zwei spezielle Zylinderarten besitzt, sondern dass aufgrund der Stelleinrichtung 26 der Druck im Innern des Hohlkörpers 6 derart gesteuert/geregelt wird, dass in einem oberen Teil Mischluft und in einem unteren Teil Quellluft austritt, und dies in jedem Lastfall, also bei Volllast und auch in jedem beliebigen Teillastfall. Dabei kann in Abhängigkeit des Lastfalls die Funktion der Luftauslassöffnungen variieren (einmal als Mischluftauslassöffnungen, ein anderes Mal als Quellluftauslassöffnungen).Alternatively, however, it can also be provided that the
Die
Aufgrund der Erfindung ergibt sich ein Luftauslass in Form eines Hohlkörpers, dessen Mantelfläche mit Luftauslassöffnung versehen ist, wobei dessen Boden geschlossen oder zumindest teilweise geschlossen ist und der mit einem dem Boden gegenüberliegenden Lufteinlass versehen ist, wobei bei maximalen Volumenstrom (Volllast) die Luftauslassöffnungen in einem oberen Bereich des Hohlkörpers, in dem ein statischer Druck pM vorliegt, als Mischauslassöffnungen und in einem unteren Bereich des Hohlkörpers (in dem ein statischer Druck pQ vorliegt) als Quellluftauslassöffnungen dienen, wobei eine im Innern des Hohlkörpers angeordnete Stelleinrichtung vorgesehen ist, die bei reduziertem Volumenstrom (Teillast) den im Innern des oberen Bereichs herrschenden Druck pM der Luft derart groß hält (wobei pM größer pQ ist), dass Mischluft austritt. Bevorzugt liegt eine Mischlüftungsform vor, bestehend aus dem Ausstoß von Mischluft und aus dem Ausstoß von Quellluft.Due to the invention, an air outlet in the form of a hollow body, the lateral surface is provided with air outlet opening, wherein the bottom is closed or at least partially closed and which is provided with an air inlet opposite the bottom, wherein at maximum flow (full load), the air outlet in a Upper portion of the hollow body, in which a static pressure p M is present, as Mischauslassöffnungen and in a lower portion of the hollow body (in which a static pressure p Q is present) serve as Quellluftauslassöffnungen, wherein disposed in the interior of the hollow body actuating device is provided at reduced volume flow (part load) keeps the pressure prevailing in the interior of the upper region p M of the air (where p M is greater p Q ) that mixed air exits. Preferably, there is a mixed ventilation form, consisting of the discharge of mixed air and the emission of source air.
Bevorzugt ist vorgesehen, dass der freie Querschnitt der Summe der Luftauslassöffnungen im oberen Abschnitt des Hohlkörpers maximal halb so groß ist wie der freie Querschnitt der Summe der Luftauslassöffnungen im unteren Abschnitt des Hohlkörpers.It is preferably provided that the free cross section of the sum of the air outlet openings in the upper portion of the hollow body is at most half as large as the free cross section of the sum of the air outlet openings in the lower portion of the hollow body.
Ferner ist vorgesehen, dass der Stellbereich/Regelbereich der Volumenströme des Luftauslasses das Verhältnis der Volumenströme beider Strömungsformen betrifft (Mischluft sowie Quellluft, wobei der Volumenstrom der Mischluft mit VM bezeichnet ist und der Volumenstrom der Quellluft mit VQ. Es gilt die Beziehung:
Claims (27)
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CN112432337A (en) * | 2020-11-27 | 2021-03-02 | 珠海格力电器股份有限公司 | Air port position regulating method and device, air conditioner and storage medium |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0606078A2 (en) * | 1993-01-08 | 1994-07-13 | H KRANTZ-TKT GmbH | Air outlet for air treatment installations |
DE29502396U1 (en) * | 1995-02-15 | 1995-04-20 | Gebrüder Trox, GmbH, 47506 Neukirchen-Vluyn | Displacement air passage |
EP0683361A2 (en) * | 1994-05-20 | 1995-11-22 | Hartmut Bree | Air outlet |
-
2015
- 2015-09-30 EP EP15187721.4A patent/EP3150936B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0606078A2 (en) * | 1993-01-08 | 1994-07-13 | H KRANTZ-TKT GmbH | Air outlet for air treatment installations |
EP0683361A2 (en) * | 1994-05-20 | 1995-11-22 | Hartmut Bree | Air outlet |
DE29502396U1 (en) * | 1995-02-15 | 1995-04-20 | Gebrüder Trox, GmbH, 47506 Neukirchen-Vluyn | Displacement air passage |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112432337A (en) * | 2020-11-27 | 2021-03-02 | 珠海格力电器股份有限公司 | Air port position regulating method and device, air conditioner and storage medium |
CN112432337B (en) * | 2020-11-27 | 2021-11-16 | 珠海格力电器股份有限公司 | Air port position regulating method and device, air conditioner and storage medium |
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