EP1035385B1 - Method for temperature control of a hall and device for curring out this method - Google Patents

Abstract

A fan (5) forces conditioned from air inlet (12) through a pressure duct (23) terminating in a nozzle (4) which projects a high speed air jet (20) into the hall. The duct is enclosed in a suction chamber (2) with a controlled inlet (9) from the hall and one (7) for conditioned air for providing air mixtures to maintain the required temperature level. The fan can also draw air through a cooling/heating unit (19) or heated air discharged at night through outlet (22)

Description

From EP-0 464 228 A is a nozzle box for induction devices known from air conditioning systems, the bottom side secondary air intake has, in which a heat exchanger is arranged. The nozzle box also has an upward against the ceiling directed air outlet shaft, in through nozzles Primary air is injected and that via the secondary air inlet This sucked in room air in the relevant Room emanates. For use for temperature control of halls, in particular of warehouses, is such a nozzle box not applicable, because through the air outlet shaft from aspirated room air us injected primary air existing Mixed air already to avoid drafts, from the Outlet shaft only with relatively low flow velocity may leak. An outlet nozzle arrangement for a Targeted guidance of the tempering air, as for the temperature control a hall is required, is missing in the previously known Nozzle box completely.

From WO86 / 02710 is a previously known with the above-explained Nozzle box comparable device known in which Fresh air at high speed into an induction chamber is blown, which sucks in air through an air inlet and with mixing into a distribution chamber overflow leaves that opposite the room by means of a perforated plate or lamellae for even distribution of the exiting Air is blown into the room. For improvement In the air distribution, the distribution chamber is the distribution chamber downstream perforated plate, at a substantially same exit velocity over to get the entire outlet cross section of the nozzle box. This prior art nozzle box is only for ventilation suitable for rooms.

The tempering of a hall, as described in more detail below is, is with the nozzle boxes of prior art design For ventilation of rooms not feasible.

For halls, especially for warehouses, it is not mandatory required, this depending on the prevailing outside temperatures to cool to predetermined constant temperatures or to heat, but it is sufficient if the hall room tempered is, d. H. a noticeable difference to the outside temperature to accomplish. Especially in warehouses, this ranges in the Usually off, as the people using the hall, for example Warehouse workers or even drivers of transport vehicles, alternately both outside and inside the hall stop, so that too large temperature differences between inside and outside are even undesirable.

A major problem for the temperature control of such warehouses exists in its size, whereby hall widths of for example 50 to 100 m and hall lengths from 100 to 250 m and heights of 10 to 30 m can certainly be given. Such large halls can only be equipped with a large device and energy through a variety of cooling or Heizlüftern temper to allow room temperature in the hall room create, compared to the outside temperature even bearable Stay enabled.

The invention is based on the object, a method to create a tempering of a hall with bearable Device and energy expenditure allows.

The object is according to the invention with the in claim 1 solved procedural steps.

The term "conditioned air" includes directly aspirated Outside air and / or cooled or heated air with a for the desired temperature of the hall suitable temperature position.

At correspondingly high flow rates of, for example 30 to 50 m / s for the propulsion jet and at corresponding Dimensioning of the outlet nozzle assembly with a Ausblasgeschwindigkeit for the tempering of example 5 to 15 m / s it is possible to use a wide beam to be blown on temperature air far into the hall. by virtue of the induction of the beam emerging into the hall Temperierungsluft is sucked in hall air, at the same time The beam is slowed down, so that with appropriate vote the "throw" of the Temperierungsluftstrahles on the hall length to be bridged in the area of the end of the hall an air flow with only a low speed of about 0.25 to 1 m / s is present. By taking along Indoor air, this air flow is fanned out accordingly.

The flow rates also depend on the respective Temperierungsaufgabe. Shall be at high outside temperatures the hall must be tempered in the sense of cooling, must in Area of the hall end the flow velocity of the air in the bottom area still just be noticeable, with the cooled Temperierungsluft in the front hall areas after Art an inversion drops. Should be at low outdoor temperatures the hall must be tempered in the sense of a heating, the heated tempering air with a slightly higher air flow be injected to a certain extent to get a circulation of tempering air in the hall. Particularly useful in both cases, if the Temperierungsluft in the ceiling area of the hall preferably is blown along the hall ceiling.

The air flow in the hall can now be different depending on the Asked task also be influenced by the fact that at least one partial air quantity as conditioned air from the Hall returned to the suction chamber, so at least partially is circulated. This is for example then important if the hall is heated in the sense of heating shall be.

The possibility that the outside air at least one partial air is taken as conditioned air and the suction chamber is supplied, for example, is then important if the hall is to be tempered in the sense of cooling, so that at night when the outside temperature is lower is as the air temperature in the hall, practically without Cooling unit can be worked.

In another embodiment of the method according to the invention is provided that the air for the propulsion jet from the Hall is sucked off. While it is at a temperature in the Cooling sense is appropriate that the air for the Propulsion jet also sucked in outside air as conditioned air is, it is at a temperature in the sense of heating, d. H. at lower outside temperatures the air for the propulsion jet as condensed air from the hall so as to reduce the heat content of the air in the propulsion jet, which is then optionally heated in addition, to exploit.

In an advantageous embodiment of the invention Method is provided that at high outside temperatures during the night to generate the propulsion jet and / or outside air is drawn in as conditioned air. There Usually carried out such warehouses today isolated are and also the gates for loading vehicles with Locks are provided here to exchange air and thus a temperature exchange between conditioned air and indoor air to a large extent, it is possible to avoid one Warehouse without refrigeration units effective cooling temperature. The cool outside air is called conditioned air during the Night time, for example from 0 o'clock to 5 o'clock in the morning from the outside sucked. During the day, so in the time of 5 o'clock until 24 o'clock, then the connection to the outside air becomes both shut off the suction chamber and the fan and the hall air circulated. In the time in the cooling conditioned Air is introduced into the hall, it is appropriate if at least part of the hall air is discharged to the outside becomes. This is particularly useful in the Time in which the lowest outside temperatures are present, so that in the hall existing hot air pressed outwards becomes.

If at the cooling temperature during the day the conditioned air is circulated through the hall, It can also be useful in very high outside temperatures be, if at least the air cooled for the propulsion jet becomes.

However, at low outside temperatures, the hall space should be in Tempered to heat up, it is at a Circulation of the conditioned air over the hall useful when the air is heated for the propulsion jet.

In a particular embodiment of the method according to the invention it is further provided that the suction chamber at least temporarily and / or at least part of the conditioned Air is supplied under pressure. With the help of this measure is it possible, for example, with a cooling temperature, when switching from daytime operation, d. H. Revolution of the Indoor air in the circulation, on night operation, d. H. Feed from cold conditioned air to displace the warm indoor air, the volume flow and thus the exit velocity increase in the area of the outlet nozzle arrangement. During the day, so in normal operation, the towing power of Jet is sufficient to allow sufficient air circulation ensure that by the supply of as conditioned Air guided through the suction chamber outside air Pressure already with a clear, over the whole Cross-section extending flow velocity to the Treibdüsenanordnung introduced, so that due to the lower Energy losses in the further acceleration of the total air volume by the propulsion jet, a higher exit velocity is reached at the outlet nozzle assembly and so important for air exchange and cooling of the hall improved high air flow during the period becomes. This may be useful only during an initial phase the supply of conditioned air under pressure make a high heat dissipation in the shortest possible time and then in "normal operation", d. H. conditioned air only under the influence of the propulsion jet to suck. It may also be sufficient if only a part the conditioned air supplied to the suction chamber Pressure is supplied while the rest of the conditioned Air on the suction effect of the propulsion jet on the one hand and on the other hand, assisted by the suction chamber caused Dragging effect, the partial air volume supplied under pressure flows through the suction chamber. The required pressure increase The conditioned air can have an additional Blower be effected in the suction of the suction or in the form of one of the main blower, which generates the propulsion jet, bypassed by partial flow, fed to the suction chamber become.

It is expedient here, if the conditioned air under Pressure in the direction of the propulsion jet passed through the suction chamber is, expediently the pressure increase for the conditioned air seen in the flow direction before entry of the propellant jet.

The invention further relates to a device for temperature control a hall according to the inventive method, with the features specified in claim 14. This one has a fan on, the pressure side via a pressure channel with a Treibdüsenanordnung is connected, in a suction chamber empties, wherein the suction chamber in axial association and with Distance from the motive nozzle assembly an outlet nozzle assembly and having at least one optional opening and closable inlet opening for conditioned air and at least an optional opposite the hall openable and closable Inlet opening is provided for indoor air. Conveniently, Here is the inlet for conditioned Air arranged in the axial extension of the outlet nozzle assembly, wherein the motive nozzle assembly disposed therebetween is. At a correspondingly high jet velocity of the Treibdüsenanordnung exiting propulsion jet is over the Suction chamber depending on the opening of the respective inlet opening conditioned air and / or hall air sucked and accelerated, so that from the outlet nozzle assembly a corresponding strong jet of tempering air blown into the hall becomes.

In an embodiment of the invention is further provided that the Blower suction side is connected to an inlet chamber, the optional for the intake of conditioned air and / or openable for the intake of indoor air.

It is expedient, if the inlet chamber with a Cooling device and / or provided with a heater is.

In an advantageous embodiment of the invention is further provided that the motive nozzle arrangement a plurality of side by side arranged individual nozzles, which with the pressure side complete the pressure channel connected to the fan. In order to It is possible to get the required propulsion jet through a Variety of spaced apart individual beams To form, each one for itself a high flow rate exhibit. This will reduce the drag force of this Drive jet "bundle" formed from a plurality of individual jets conditioned air entrained from the suction chamber and not just on the outside of the "bundle", but the conditioned air entrained from the suction chamber becomes also sucked into the "bundle", so that by far and seen in the flow direction behind the motive nozzle assembly arranged outlet nozzle arrangement of the total beam at Temperierungsluft with appropriate design of the outlet nozzle assembly is still accelerated. Here it is appropriate if the opening contour of the outlet nozzle assembly approximately the enlarged projection of the motive nozzle assembly equivalent. In a Treibdüsenanordnung in the form of a Rectangles with, for example, in two rows one above the other and to several juxtaposed individual nozzles, points then the outlet nozzle a corresponding rectangular contour, but with a correspondingly larger cross-section. The free flow cross section the outlet nozzle arrangement is in this case on the Exit speed of the propulsion jet and the flow rate and flow rate of the emerging into the hall Beam tune to Temperierungsluft.

In an embodiment of the invention it is further provided that the Outlet nozzle arrangement means for beam alignment and / or Beam forming has. Such means for beam alignment For example, by at or in the free flow cross-section the outlet nozzle opening arranged pivotable Slats are formed, over which the direction of the beam can be influenced. For example, these slats can be oriented horizontally to the beam of tempering air more or less far into the hall. The slats can also be aligned vertically be, where appropriate, partially pivotable in opposite directions may be formed, so that, for example, the Center of emerging from the outlet nozzle air jet in straight Direction is continued, while the sides of the Air jet can be deflected to either side so that you can pull apart the entire air jet like a fan. It is also possible, horizontally oriented and to combine vertically directed lamellar arrangements, so as to achieve a differentiated beam shaping.

For vertically oriented fin arrangements, it may as well be appropriate if this with a corresponding Actuator total periodically or continuously back and forth can be adjusted, so that the emerging in the hall Beam at tempering air by periodic lateral Distraction spread over a larger part of the hall space can be. This is particularly advantageous if during a time when there is no work in the hall, to be provided for a temperature. This will Furthermore, avoided during a long rest in the hall a constant, on the blown tempering air Induced air vortex can form, inevitably lead to "dead space formation" in neighboring areas would. By periodic or continuous pivoting of the entering into the hall air jet is for better ventilation of the hall space provided.

In a further embodiment of the invention, it is provided that the running in the suction chamber part of the pressure channel its outside is provided with heat transfer surfaces. This arrangement is particularly important if be blown over the jet of heated air should. Thus, it is possible that the pressure channel in the Suction chamber by-passing conditioned air already one Part of the desired amount of heat over the heat transfer surfaces able to absorb, so that a uniform Temperature profile for the beam cross section emerging into the hall the tempering air results.

In a further embodiment of the invention, it is provided that the suction chamber seen in the flow direction in front of the mouth the blowing nozzle assembly a fan for acceleration of conditioned airflow. With help of a Such an upstream fan, it is possible a Pressure increase and thus an acceleration of the Treibdüsenanordnung flowing conditioned air to so the total air flow by minimizing the losses to effect in the region of the mouth of the motive nozzle arrangement. The arrangement of the fan in the suction chamber can be made so that both the conditioned as Air circulated indoor air as well as from the environment cold air sucked in as conditioned air Increasing the pressure experienced by the fan.

In a device that is preferably used for heating it is expedient if the sucked out of the hall Air experiences the pressure increase. For applications in which during the nighttime by the supply of cold outside air as Conditioned air, the pressure increase of the conditioned Air is beneficial, it may be appropriate in the circulation Guided indoor air, which only circulates during the day is guided, seen in the flow direction, between the Introduce fan and the blowing nozzle assembly in the suction chamber. This eliminates the standstill of the fan caused pressure losses.

The term fan is used in connection with the present Invention generally for a turbomachine for generating used by air flow rates, so here both actual fans with only slight pressure increase up to 10 kPa and so-called blowers are detected with which Pressure increases over 10 kPa can be achieved. First Line come for carrying out the process axial fans Or axial fan into consideration, since this at standstill for the flowing conditioned air a comparatively cause low flow resistance.

Fig. 1

einen Vertikalschnitt durch eine Halle mit Saugkammer, Gebläse Treibdüsenanordnung und Auslaßdüsenanordnung,

Fig. 2

eine Aufsicht auf die Auslaßseite der Saugkammer,

Fig. 3

eine andere Ausführungsform eines Mittels zur Strahlausrichtung,

Fig. 4

eine Abwandlung der Ausführungsform gemäß Fig. 3,

Fig. 5

eine modifizierte Ausführungsform der Saugkammer,

Fig. 6

eine weitere modifizierte Ausführungsform mit einer abgewandelten Auslaßdüsenanordnung,

Fig. 7

eine Abwandlung der Ausführungsform gem. Fig. 6,

Fig. 8

eine Abwandlung der Ausführungsform gem. Fig. 1.

The invention will be explained in more detail with reference to schematic drawings of an embodiment. Show it:

Fig. 1

a vertical section through a hall with suction chamber, fan blowing nozzle assembly and outlet nozzle assembly,

Fig. 2

a plan view of the outlet side of the suction chamber,

Fig. 3

another embodiment of a means for beam alignment,

Fig. 4

a modification of the embodiment of FIG. 3,

Fig. 5

a modified embodiment of the suction chamber,

Fig. 6

a further modified embodiment with a modified outlet nozzle arrangement,

Fig. 7

a modification of the embodiment acc. 6,

Fig. 8

a modification of the embodiment acc. Fig. 1.

Fig. 1 shows in a vertical section a hall 1, whose Walls and ceiling are designed thermally insulated. This one not shown doors, but especially the loading gates, are designed so that they lock during loading sealed and therefore virtually no air exchange can take place with the hall environment.

At one end of the hall, a suction chamber 2 is in the ceiling area arranged, in which a pressure channel 3 with a driving nozzle arrangement 4 opens. The pressure channel 3 is the pressure side with a Blower 5 connected. The suction chamber 2 has in axial Extension to the Treibdüsenanordnung 4 and at a distance an outlet nozzle assembly 6.

The suction chamber 2 is turned away at its outlet nozzle assembly 6 Side provided with an inlet opening 7, which with the outside air communicates with and the with a flap arrangement 8 can be opened and closed. The suction chamber 2 is further in this end with a further inlet opening 9 provided, which opens into the hall interior and the can be opened and closed via a corresponding flap arrangement 10 is.

The fan is associated with an inlet chamber 11, which optionally via an inlet opening 12 with a flap arrangement 13 with the outside air and via an opening 14 with flap assembly 15 via a ballast chamber 16 again optionally over an inlet port 17 and an inlet port 18 optionally with the outside air or can be connected to the hall. In the Vorschaltkammer 16 may, as indicated here, a temperature unit 19, depending on the case of use as Cooling device or is designed as a heating device.

The sucked outside air and via the inlet port 18th sucked and possibly cooled or heated indoor air is hereinafter referred to as conditioned air.

There is now such a warehouse in an area with high daytime temperatures but low night temperatures, then it is possible with the help of such a device to temper the hall accordingly cooling. For this purpose, 5 cooled conditioned air is sucked during the cool night period via the fan and the drive nozzle assembly 4 generates a propellant jet 20 with a high air velocity of, for example, 50 m per second. At a delivery rate depending on the hall size between 50,000 and 200,000 m ³ / h is now carried over one or two suction chambers 2 with the help of the propulsion jet 20 from the suction chamber 2 conditioned air. For this purpose, the inlet opening 7 is opened for the outside air, while the inlet opening 9 is closed to the hall. The cool outside air, used here as conditioned air, is now entrained by the propulsion jet 20 in the suction chamber 2. With appropriate coordination of the distance of the exit plane of the motive nozzle 4 to the exit plane of the outlet nozzle assembly 6 and corresponding cross-sectional dimensions of the propellant jet 20 is about five times entrained in air from the suction chamber 2, so that from the outlet nozzle assembly 6, a core jet 21 of tempering air 50 m far into the Hall is blown out with an initial speed of, for example, 7.5 m / s, so that a hall length of about 50 m can be bridged, with an air velocity in the region of the hall end of about 0.5 m / s can be determined.

The core jet 21 also entrains air from the hall. Since both the propellant jet 20 and over the Suction chamber 2 cool conditioned air is supplied, can via an outlet opening 22 in at night the wall of the hall warmed up in the hall during the daytime Air are displaced to the outside.

As soon as the outside temperatures rise in the morning, are the inlet ports 7 and 12 for the conditioned Air is closed and the suction chamber 2 with the hall space connecting inlet port 9 and a not shown here Inlet opening of the inlet chamber 11 to the hall space open. This makes it possible to do that during the night into the hall promoted cold air, through which the Hall walls and possibly also the hall equipment cooled now in circulation during the daytime to lead in the hall, whereby by the core beam 21 in the Hall space near ground induced air movement for the in the hall staff working additionally the sensation of Coolness is enhanced.

In extreme temperature conditions it is possible during of the day from the hall through the inlet port 18 through the Vorschaltkammer 16 extracted air via the as cooling device trained temperature unit 19 to lead, so that a certain, compared to the outside temperature lower temperature level can be maintained in the hall. The Cooling power is only for the generation of the propulsion jet apply required amount of air.

However, the device described with reference to FIG. 1 can also used for tempering the hall air in the sense of heating become. In this case, the temperature unit 19 designed as a heater, so that in a circulation of indoor air via the fan 5 heated the air can be so that hot air in the suction chamber as a propulsion jet 2 blown out and accordingly from the hall over the inlet opening 9 at closed inlet openings 7 and 12 the hall air can be circulated. A heating up up to 70 ° C may be appropriate depending on the temperature be.

An air exchange can be effected thereby, if via the inlet port 17 a small amount of outside air over the heater 19 is supplied and in the same way via the outlet opening 22 a corresponding amount of indoor air is discharged to the outside.

The pressure channel 3 does not need to be thermally insulated in this application to be executed. It is advisable when the pressure channel 3 made of thermally conductive material, for example Sheet steel, is made so that through the suction chamber 2 air flowing along the pressure channel 3 already warm can. To improve the heat transfer it is in this case, if at least the horizontally extending Part of the pressure channel 3 provided with heat transfer surfaces 23 is. These can be as smooth or wavy Web plates be formed so as to contact surface between the air flowing along and the pressure channel 3 to enlarge.

In Fig. 2 is a view of the outlet nozzle assembly. 6 shown. The representing the free flow cross section Nozzle opening 24 has approximately the same contour as in FIG this view visible motive nozzle assembly 4, but with larger cross-section. In the illustrated embodiment is the pressure channel 3 at least in the end before the Treibdüsenanordnung 4 formed as a rectangular channel. Of the Pressure channel 3 is completed here with a closure wall 25, in the multiple individual nozzles 26 next to each other and in two Rows one above the other, for example, offset from one another, arranged are. From this motive nozzle assembly thus occurs the Propulsion jet 20 as a "bundle" of single rays.

The suction of the motive nozzle assembly 4 can still thereby be improved when the horizontal part of the pressure channel 3 at least over part of its length divided into individual tubes is, then each end in a single nozzle 26. About the ratio of the theoretical beam cross section of the composed of many individual beams drive jet 20th and the free passage section 24 of the outlet nozzle assembly 4 can then both the total amount of air and the exit velocity emerging from the outlet nozzle assembly Air jet 21 be influenced.

To improve the quality of the Temperierungsluftstrahls 21st It may be appropriate if at the narrowest outlet cross-section 24 of the outlet nozzle assembly 6 is still an expanding Diffuser part 27 connects, as shown in FIG. 1 indicated by dash-dotted lines.

As indicated in Fig. 1, the outlet nozzle assembly 6 is in Outlet area with means 28 for beam alignment and / or Beam shaping provided. In the simplest embodiment These means 28 can be made by swiveling slats that out pivoted upwards or downwards in a horizontal orientation can be so as to change the beam direction.

Instead of a horizontal alignment of the slats as a means For beam alignment, it is also possible, as in FIG. 3 shown to align slats 28.1 vertically, so that the Kernel 21 according to the pivoting of the means to form the beam forming lamellae to the right or to left the beam can be deflected accordingly laterally.

In Fig. 4 is a modification of the embodiment of FIG. 3 shown. In this embodiment, each of the laterally outer lamellae 28.3 from a parallel direction to be pivoted outwards while the slats 28.2 in the central region parallel to the axis of the outlet nozzle arrangement 6 stay aligned. In this way it is possible the exiting from the outlet nozzle 6 air jet 21 in a horizontal direction and so on Cover hall areas.

The embodiment according to FIG. 3 can also be used with a motor Drive are provided so that the fins 28.2 periodically or can be continuously swung back and forth, so that the emerging from the outlet nozzle assembly 6 Temperierungsluftstrahl 21 in different areas of the hall can be blown.

Furthermore, it may be appropriate horizontal and vertical fin arrangements to arrange one behind the other in the flow direction, so as to effect a certain rectifier effect.

In Fig. 5 is a modified embodiment of the device gem. Fig. 1 shown. The basic structure is identical, so that the same construction and functional elements with the same Reference numerals are provided and accordingly to the description refer to Fig. 1.

As Fig. 5 reveals, there is the modification of the embodiment in that in the suction chamber 2 in the flow direction the conditioned air flowing through the suction chamber before the drive nozzle assembly 4, a fan 29 is arranged is. Here, the inlet opening 9 with its flap arrangement 10 seen in the flow direction between the fan 29 and the driving nozzle assembly 4 is arranged so that in the initially described mode of operation for cooling temperature a warehouse in areas with high daytime temperatures during the day the fan 29 can be switched off and so exclusively on the effect of the motive nozzle assembly the hall air as conditioned air through the suction chamber 2 can be performed.

During the cool night period, the flap assembly 10 becomes closed and the flap assembly 8 of the inlet opening. 7 open and this at least in the initial phase for generation a high air flow rate, the fan 29 in operation taken. Because of the fan 29 of the propellant nozzle assembly 4 amount of air already supplied an increased ground speed shows, the energy losses in the Speed increase of the total air flow through the Drive jet 20 is reduced, so that an increased amount of air with increased flow rate through the outlet nozzle assembly 6 can be initiated in the hall.

This arrangement of an additional fan 29 has this the further advantage that the fan 5 in his performance in essential to "normal operation", d. H. the operation during of the day to maintain air circulation through the hall, d. H. So designed with less power can be, because the required for night operation higher Power then by the additional fan 29 at least is applied temporarily.

In Fig. 6 is a respect to the embodiment. Fig. 1 modified embodiment shown, in particular then used when the inventive device used to heat a hall. Also these modified Embodiment corresponds to the basic structure substantially the embodiment acc. Fig. 1, so that the same Components are marked with the same reference numerals and accordingly to the description of FIG. 1 can be.

In this embodiment, the suction chamber 2 with a Inlet opening 7.1 provided open to the hall interior is. In the area of the inlet opening 7.1 is a ring nozzle acting pipe section 30 is provided in which a small Axial fan 29.1 is arranged. In a preferred in this area circular suction channel 2 is the space between the pipe section 30 and the wall 2.1 of the suction chamber provided with a flap assembly 31, in the case of "normal operation", d. h., if the air circulation is maintained only over the propulsion jet 20, opened is. Again, the axial fan 29.1 is expediently designed so that it at standstill a small Has flow resistance.

Should now at the beginning of a warm-up, for example, before the beginning a working shift or a strong temperature drop Heating air entered as far as possible into the hall interior be, then the flap assembly 31 in the annulus closed around the pipe section 30 and the axial fan 29.1 put into operation. Through the axial fan 29.1 will then be a reduced amount of air at high speed the drive nozzle assembly 4 is supplied, so that a total via the outlet nozzle assembly 6 from the conditioned Air and propellant air formed tempering with high Speed of, for example, 10 to 15 m / sec the outlet nozzle assembly 6 exit and a corresponding strong air swirl in the hall can induce. After completion This heating phase is then the axial fan 29.1 switched off and the flap assembly 31 is opened, so that then exclusively via the propellant energy the Temperierungsluft in the circulation with a lower exit velocity in the range of 5 to 10 m / sec exit into the hall can.

In a modification can be regulated in his performance Axial fan 29.1 are provided, for the Anheizphase with high speed and correspondingly high flow rate operated during normal operation. with reduced speed and thus only with low flow rate is operated. This reduced delivery rate will adjusted so that this essentially the flow losses between the inlet port 7.1 and the motive nozzle assembly 4 are balanced, so that in turn, as above already for the embodiment acc. Fig. 5 mentioned, to Generation of the propulsion jet for the "normal operation" a smaller one Blower 5 can be used as the flow losses between the inlet port 7.1 and the motive nozzle assembly 4 and the flow losses in the speed increase the incoming conditioned air via the fan 29.1 be balanced.

In another modification, instead of an additional Fan from the pressure channel 3 near the fan 5, a bypass line be branched, through which a partial flow of the forced air as conditioned air injected into the suction chamber 2 be seen in the flow direction before the Drive nozzle 4, so that here too the desired pressure increase the conditioned air is given. The fan 5 should expediently for a correspondingly high delivery rate designed and with a controllable at its speed drive motor be connected.

As shown in Fig. 6 by the dash-dotted extension 2.2 of Suction chamber 2 indicated, the embodiment according to. Fig. 6 in the same way for the application of a cooling Temperature control can be used, as described with reference to FIG. 5 is. The extension 2.2 is then again with a in the vicinity opening inlet opening 7 with a corresponding flap assembly 8, as here also dash-dotted lines shown, completed. Between motive nozzle arrangement 4 and fan 29.1 is then corresponding to an inlet port 9 with flap assembly 10 (not shown here) to arrange.

Instead of two intersecting lamellar arrangements or in Combination with a lamellar arrangement, it is also possible one of a plurality of parallel tubes, preferably with square or hexagonal cross section in the form of a so-called Rectifier as means for beam alignment and / or steel mold to the outlet nozzle assembly 6 to arrange.

It is also possible, the outlet nozzle assembly 6 by a Variety of juxtaposed pipe nozzles 61 and 6.2 to form, at least in part, even at an angle to Main axis of the propulsion jet can be aligned.

In the embodiment according to. Fig. 6 is the above-mentioned Shape of the outlet nozzle assembly 6 with a variety of adjacent pipe nozzles 6.1 and 6.2 indicated. In the embodiment shown here is still a subdivision option provided, in such a way that the larger flow cross section over the overhead pipe nozzles 6.1 is provided, wherein the tube nozzles 6.1 in its beam direction practically parallel to the Hallendekke are aligned. A smaller flow cross section is provided by the pipe nozzles 6.2, in their Beam direction at an angle to the hall ceiling down are aligned. Over flap arrangements 32 and 33 can now optionally the influx to the pipe nozzles 6.1 and / or to the Pipe nozzles 6.2 are opened or closed.

The design is in this case provided so that the pipe nozzles 6.1 for the "normal operation" described above, d. H. in a promotion of the tempering air substantially are open over the propulsion jet 20. However, for the "Start" of the air vortex in the hall, for example at a heating phase, a high flow velocity as considered necessary, then the flaps 32 are closed and the flaps 33 are opened so that warmed tempering air at high speed and directed diagonally downwards can enter the hall. By this orientation the warmed up entering the hall interior Temperierungsluft prevents the warmed up Temperierungsluft itself immediately after leaving the Outlet nozzle assembly 6 "applies" to the hall ceiling. With high speed exiting opposite the hall air warmer tempering air can thus far and through indoor air opposite the hall ceiling at least in the entrance area shielded enter the hall and this without cooling by direct contact with the hall ceiling but under Heating the between the hall ceiling and warm tempering air lying indoor air better heating of the in the Hall induced air vortex will cause.

The arrangement acc. Fig. 5, depending on the structural conditions also with a fan assembly 29.1, 30, 31 executed be as shown in Fig. 6. The embodiment gem. 6 can also be used with a large fan, as shown in Fig. 5, be provided.

The structural features of the described with reference to FIGS. 1, 5 and 6 Embodiments may vary widely Form combined with each other for each the temperature of the room in question most favorable effect to achieve.

In Fig. 7 is still a modification of the embodiment according to. Fig. 5 or Fig. 6, as shown in particular for the Heating a hall with one or more air outlets below the hall ceiling is appropriate if these air outlets not just in one direction but each one of them Ceiling center ago on all sides of the tempering air in leave the hall space. The basic structure corresponds again the one described above for the individual embodiments Construction. The difference is in the embodiment gem. Fig. 7, however, in that of the propellant nozzle assembly 4 leading pressure channel 3 a pressure channel 3.1 is branched off, which is arranged in a at the outlet side of the suction chamber 2 Cross channel 34 opens. The preferably vertically downwards aligned in the hall transverse channel 34 is with a Outlet head 35 provided with an outlet nozzle assembly. 6 is provided, through which the hall to be supplied Temperierungsluft essentially in the horizontal direction, preferably injected at a slight angle inclined downwards becomes. Above the junction 2.1 of the suction chamber 2 in the transverse channel 34, an auxiliary fan 36 is arranged, the the air flowing in from the suction chamber 2 down into the Outlet head 35 deflects. Via a flap arrangement 37 in the inlet area the branched pressure channel 3.1 in the transverse channel 34 may in addition to the over the branched pressure channel 3.1 supplied hot air still heated room air returned become.

About a valve 38 in the pressure channel 3 and a valve 39 in the branched pressure channel 3.1 can now in any desired Make the distribution of high speed over the fan to be supplied hot air to be made. about corresponding settings of the flaps 10 and 37 as well as over appropriate connection and disconnection of the auxiliary fan 36, optionally in the suction chamber 2 and an additional fan according to the arrangement of the fan 29 acc. Fig. 5 or 6 can be arranged, the supply of room air and the each after the tempering again to be supplied to the room Amount of air and also the exit velocity at the Outlet head to be regulated.

Of course, there is also the possibility of the embodiments gem. 5 and 6 to provide with an outlet head 35, without this a transverse channel 34 is assigned, ie from the Suction chamber 2, the amounts of air under deflection in an outlet 35 are introduced.

In a modification of the embodiment acc. Fig. 7 may also be provided be that instead of the branched pressure channel 3.1 for the supplied hot air in the transverse channel 34 on the inlet side a heating coil is arranged, which is supplied by a heat supply device for example with a liquid hot Heat transfer medium is applied. This heat supply device can also with the, the blower 5 associated temperature unit 19 connected in this embodiment then also designed as a heating register. That exists the possibility, in addition to one on the Treibstrahldüse. 4 guided "base load" in case of severe temperature fluctuations expectant peak loads on such a heater in the transverse channel 34 and the associated auxiliary fan 36 out.

Fig. 8 shows a modification of the embodiment. Fig. 1. The air-sucking from the suction chamber 2 motive nozzle assembly 4 is another air-sucking motive nozzle assembly 4.1 downstream, in such a way that the air outlet the suction chamber 2 is formed so that a driving jet 20.1 arises, which results in a lower flow velocity having a larger amount of air. This further propulsion jet 20.1 is passed through an air intake 2.1, in the off the environment via lateral openings 2.2 more amounts of air be sucked so that from the outlet nozzle 6.1 a correspondingly large amount of air at reduced speed exit. This makes it possible, first one To produce propellant jet 20 at very high speed, so that then the exit velocity from the respective air-sucking further Treibdüsenanordnung gradually under simultaneous increase in the amount of air leakage reduced becomes. So it is possible, for example, at an air outlet speed of 90m / sec from the motive nozzle assembly 4 with appropriate gradation of the flow cross sections of downstream propulsion nozzle arrangements 4.1 and their lateral Openings 2.2 the air with a much lower Discharge speed into the hall space.

Claims (21)

1. Method to temper a hall, characterised in that a propulsion nozzle arrangement connected with a blower generates a propulsive jet with a high flow rate, which is guided through a suction chamber provided with an outlet nozzle arrangement, whereby conditioned air is sucked in by the suction chamber optionally through at least one intake (7, 12, 17), which can be opened or closed for the ambient air, and at least one intake (9, 18), which can be opened or closed for the hall air, and which is blown together with the propulsive jet into the hall as tempering air.
2. Method according to claim 1, characterised in that the tempering air is blown in at the ceiling level, preferably along the hall ceiling.
3. Method according to one of the claims 1 or 2, characterised in that the air for the propulsive jet is sucked in from the hall or from the environment as outer air.
4. Method according to one of the claims 1 to 3, characterised in that in case of high outdoor temperatures in the day time cool outer air is sucked in as conditioned air during night time in order to generate the compulsive jet and/or as conditioned air.
5. Method according to one of the claims 1 to 4, characterised in that the hall air is at least partially discharged outwards.
6. Method according to one of the claims 1 to 5, characterised in that the conditioned air is guided in a circuit above the hall.
7. Method according to one of the claims 1 to 6, characterised in that corresponding to the outdoor temperature the air for the propulsive jet is either cooled or heated.
8. Method according to one of the claims 1 to 7, characterised in that at least at times and/or at least a portion of the conditioned air is guided under pressure into the suction chamber.
9. Method according to one of the claims 1 to 8, characterised in that conditioned air is guided under pressure in direction of the propulsive jet through the suction chamber.
10. Method according to one of the claims 1 to 9, characterised in that viewed in flow direction, conditioned air is guided under pressure into the suction chamber before the propulsive jet enters the suction chamber.
11. Method according to one of the claims 1 to 10, characterised in that viewed in flow direction, after the propulsive jet has entered the suction chamber, air is introduced under pressure.
12. Method according to claim 11, characterised in that the air is introduced diagonally to the jet direction of the propulsive jet, deviating it and mixing it up at the same time.
13. Method according to one of the claims 1 to 12, characterised in that the flow rate of the air sucking propulsive jet blown out through a first propulsion nozzle, is reduced by means of at least one additional air sucking propulsion nozzle arrangement by additionally sucked air quantities, whereby a new propulsive jet with a lower flow rate is generated.
14. Facility to temper a hall, especially a storage hall, according to the method described in claims 1 to 13, comprising a blower (5), which is connected at its pressure side via a pressure channel (3) with a propulsion nozzle arrangement (4) leading into a suction chamber (2), whereby the suction chamber (2) has an outlet nozzle arrangement (6) in axial allocation and with a distance to the propulsion nozzle arrangement (4), and is provided with at least one intake (7, 12, 17) for outer air that can optionally be opened and closed to the ambient air and at least one intake (9, 18) for hall air that can optionally be opened and closed to the hall.
15. Facility according to claim 14, characterised in that the blower (5) is at its suction side connected with an inlet chamber (11), which can be opened optionally to let in conditioned air and/or to let in hall air.
16. Facility according to one of the claims 14 or 15, characterised in that the propulsion nozzle arrangement (4) is provided with a multitude of single nozzles (26) arranged in parallel, which terminate the pressure channel (3) connected with the pressure side of the blower (5).
17. Facility according to one of the claims 14 to 16, characterised in that the opening contour of the outlet nozzle arrangement (6) approximately corresponds to an enlarged projection of the propulsion nozzle arrangement (4).
18. Facility according to one of the claims 14 to 17, characterised in that the outlet nozzle arrangement (6) is provided with means (28) to direct and/or to form a jet.
19. Facility according to one of the claims 14 to 18, characterised in that the part of the pressure channel (3) running inside the suction chamber (2) is provided with heat transfer surfaces (23) on its exterior.
20. Facility according to one of the claims 14 to 19, characterised in that viewed in flow direction before the outlet of the propulsion nozzle arrangement (4) the suction chamber (2) is provided with a ventilator (29) to accelerate the conditioned air.
21. Facility according to one of the claims 14 to 20, characterised in that to the air sucking propulsion nozzle arrangement (4) being directly connected with the blower (5), at least one further air sucking propulsion nozzle arrangement (4.1) is allocated in a distance, which forms a new propulsive jet (20.1) with a lower flow rate and a larger air quantity.

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