WO2012055504A1

WO2012055504A1 - Ventilation arrangement having a vapour extractor hood

Info

Publication number: WO2012055504A1
Application number: PCT/EP2011/005266
Authority: WO
Inventors: Heinrich Wagener
Original assignee: Wagener Gastronomieproduktion Gmbh
Priority date: 2010-10-26
Filing date: 2011-10-19
Publication date: 2012-05-03
Also published as: EP2633240B8; PL2633240T3; EP2633240A1; EP2633240B1

Abstract

A ventilation arrangement having a vapour extractor hood is provided, in particular, in the form of a vapour extraction means for the kitchen area. The extractor hood, which can be connected to a ventilation system by means of an outlet connection piece or similar connector, has a housing-like design and forms, together with an upper cover part and longitudinal and transverse side parts which are each angled away from said cover part, a vapour receiving space which is open at the bottom in the installed state. Water- and/or grease-containing vapour is received in a duct from said vapour receiving space via a separator and is passed to the outlet connection piece as largely cleaned waste air. According to the invention, at least one distribution shaft having respective discharge openings is provided as the duct which receives the filtered waste air, and said distribution shaft issues into a discharge chamber which is integrated in the housing structure at least in regions and has outlet connection piece.

Description

Ventilation arrangement with an extractor hood

The invention relates to a ventilation arrangement with an extractor hood, in particular in the form of a fume hood for the area of a kitchen, a bath o. The like. Rooms, according to the preamble of claim 1.

Ventilation arrangements with extractor hoods in various designs have long been known (US Pat. No. 2,898,840), in which hoods a fan provided for circulation filtration can be integrated (GB 1551487, DE 36 23 210 A1) or a connection to an external ventilation system can be established (DE 103 14 410 A1, DE 85 10 615 U1, DE 35 14 712 A1, US 5,377,665).

According to DE 83 07 492 U1, an extractor hood is shown, in which for optimum heat utilization in a closed system, respective heat exchangers are integrated, such that provide constant flow channels with invariable inlet openings for a uniform heat distribution.

DE 43 43 759 A1 discloses a ventilation arrangement proposed for ventilating rooms, wherein this system is preferably arranged in the ceiling edge area of the respective room. The construction provides that substantially horizontally extending and at least three side walls having collecting channels are formed in a box-like structure. By means of a corresponding suction flow of the respective separator guided mist can

CONFIRMATION SKOPJE Area of the collecting ducts are supplied, such that thereafter, the largely purified exhaust air in the region of a diversion tube can be removed from these circumferentially closed collecting ducts. In the longitudinal direction of the collecting ducts, however, different intensities of the haze absorption arise due to different distances from zones of the haze inlet to the diversion pipe, so that the system can be used in total only for zones with low suction powers and "silent ventilation".

In a supply and exhaust hood according to DE 89 11 867 U1 two achievable by upper supply air blower at the edge region of the housing are arranged in the region of a filter chamber, that in the region of a lower chamber, a known suction can be done.

For a targeted inclusion of the water and / or greasy vapor, a construction is proposed in DE 195 09 917 C1, in which above each of a ceiling suspended hoods a variety of suction pipes and channels to install. With this elaborate venting system, targeted vapor extraction is achieved over certain work areas, and a resulting condensate must be collected in the area of the separator.

In an extractor hood with supply air supply according to DE 30 11 101 A1, heat exchangers are likewise provided, so that here too the heat energy of the exhaust air can be used for preheating the supply air extending above the extraction chamber. EP 1 310 740 A1 proposes a generative exhaust hood for equipping ship harbors, wherein, starting from a vapor receiving space formed on the underside of the hood, the watery and / or greasy vapor is collected via a separator in a channel and fed directly from this outlet outlet , These are to be connected to respective provided in the ceiling area of the room exhaust ducts, such that with a correspondingly high space requirement for the plurality of pipelines a disadvantageous in tight ship-spaces time-consuming and costly installation effort arises.

The invention is concerned with the problem of providing a ventilation arrangement with a hood, which can be produced with little technical effort, with a relatively low height allows a ceiling installation position, can be installed here with reduced installation costs and to changing conditions of use with varying suction easily and with little user effort is customizable.

The invention solves this problem with a ventilation arrangement with an extractor hood according to claim 1. Further advantageous embodiments will become apparent from the claims 2 to 20 and 21 to 33rd

According to the invention, the ventilation arrangement is provided with an extractor hood which, with a distribution duct receiving the filtered exhaust air and a discharge chamber connected directly to it, has a discharge connection Forms two-chamber functional unit that is optimally adapted to cramped conditions in the area of marine equipment o. The like. Installation space and here comparatively easy to connect to an existing ventilation system.

With this compact functional unit per se known hood constructions can be replaced with "one-piece collection channel", since these previously installed constructions each above the hood a variety of - to be connected at different positions with the channels through welded joints - vent tubes required and with these vent tubes of small installation space in particular in the area of a ship's galley o. The like. Even further adversely has been limited.

In the case of the extractor hood according to the invention, in each case a plurality of distribution ducts accommodating the exhaust air interact in the region of variably executable discharge openings with only the one discharge chamber integrated into the hood structure. Thus, the filtered exhaust air can be collected in a discharge chamber from a plurality of distribution wells and forwarded or sucked off by means of only a single outlet nozzle provided on this. The thereby arranged between lying distribution wells cooperate with the respective vapor receiving space of the provision in variable sizes hoods that allow selectively selectable zones below the hood with optimally adjustable intensity targeted ventilation while the transmission power can be adjusted by hand or automatically controlled , In order to It is clear that the invention formed distribution shafts with the respective inlet and outlet openings in the air flow define an intermediate member in the manner of a "control chamber", which interacts with the downstream diversion multifunctional.

The discharge openings provided within the extractor hood between distributor shaft and diversion chamber in the region of a dividing wall are variable in size and / or number for customer-specific constructions. In this case, the extractor hood provided as a preassembled structural unit can already be "preset" in the region of the inlet-side separators and the subsequent discharge openings to respective passage parameters dependent on the opening size or the opening selection. It is also conceivable, on the other hand in the region of the diversion ducts transversely connected to the Ausleitkammer also provide several outlet or intended for this connection openings, so that according to the installation situation either or simultaneously one or more outlet can be used or closed and thus the hood than during assembly variably adjustable "Gleichbaugruppe" is optimally suited for mass production.

On the basis of the fact that respective adjusting slides or the like are known per se in the area of the separators provided as filters, in the construction according to the invention the distribution shaft can additionally be set to predetermined suction powers or changes in the region of its intermediate discharge openings of the air volume flow rate. For this purpose, corresponding flaps, slides o. The like. Closing elements are conceivable in the region of the diverter openings having partition, which can be operated by hand or by means of a motor drive.

This functionally integrated construction of the "one-piece" extractor hood with two-chamber system provides that the discharge chamber is divided by means of a kind of intermediate floor provided support wall - with respect to the ceiling part of the hood - so that with little effort a variable size executable discharge chamber is defined and with little technical effort a lateral connection to the particular two parallel distribution wells out is possible.

The supporting wall of this false floor is expediently provided with inspection openings, which are in the form of a peripheral seal having flaps o. The like. Run. It is understood that by a series of several of these cleaning flaps a complete accessibility is ensured in the region of the diversion chamber. It is also conceivable that in the area of these flaps the pollution detecting sensors or display elements are provided and they can also be combined with motor actuators for flap movement.

In an expedient embodiment, the cleaning flaps are contoured so that - despite the upstream filter - from the distribution shafts in the discharge chamber gelane ing oil or water parts are deposited on the inner sides of the flaps and can be accommodated in their contours formed as a trough or trough. Thus, with relatively little effort, a quick cleaning of the extractor hood in the area of these inspection flaps can be carried out, and a risk of fire due to the separation of oil is substantially reduced.

With the manhole-chamber unit according to the invention, an extractor hood is provided which can be reduced in weight with comparatively little material and forms an advantageously small-sized module with high efficiency By the function-integrated actuator and control modules are - with appropriate size of the hood, for example at a length of more than 3 m and a width of about 2 m - given a variety of possibilities for varying the ventilation conditions in each useful zone below the hood. The installation of the system is very simple, so that the installation costs in comparison with previously used systems are advantageously low.

In a further design and application-optimized design is provided that in the contour of the hood construction a connectable to a Fristluftzufuhr channel guide is integrated, so that - in addition to the targeted extraction - with little installation effort and the supply of fresh air in variably predetermined usable areas below the Dunstaufnahmeraumes possible is. A further improvement of the above-described construction is achieved in that the channel in the region of the distribution shaft or the diversion chamber is provided with a return connection which detects at least a partial volume of the filtered exhaust air. It is provided that from the channel out a substantially freely definable part-air volume is diverted from the already filtered exhaust air and this either passes directly into the kitchen area or is added to a substantially fresh air-containing air supply system.

Depending on the size of the ventilation arrangement, it is also conceivable to install a plurality of individually or jointly connectable return connections in the system, so that a rapid variation and adaptation of different volume flows of the total volume of air to be derived from the channel is possible.

With this return connection it is achieved that the - dimensionable in dependence on a respective size of the kitchen area to be vented - construction can be manufactured and installed with relatively smaller dimensions. With the advantageous feedback "power reserve" is already diverted from the exhaust air, so that the required flow capacity is reduced at the outlet and thus in addition to cost and weight savings on the system and energy savings during operation is achieved.

An additional air distributor can be integrated in the variably configurable system of the return connection so that the partial volume "separated" from the exhaust air volume can be controlled. This can for example already by an appropriate Arrangement of valves can be achieved for control, with their respective position affects the "branched" volume. Advantageously, a fan having a controllable drive is interposed in the region of the diversion duct in such a way that its variable control can actively influence the respective size of the partial volume to be conveyed.

This fan design can be designed so that the sub-volume is diverted directly from the exhaust air led to the outlet and returned to the fresh air duct. In a further advantageous embodiment, it is provided that an axial fan integrated into the chamber is provided as the air distributor and the subvolume is deliberately returned to the vicinity of the extractor chamber via a transfer chamber. In a further embodiment, this feedback connection integrated in the hood system can be designed with a transfer chamber having an adjustable closure, from which the partial volume is directed in a specific direction to the extractor hood of the extractor hood or to the room.

It is understood that this compact system with return connection for parts of the exhaust air may have further optimizing details, for example, provided in the region of the distribution well behind the filter liquid discharge, several transfer chambers can be integrated into the system and / or with closable outlet a recirculation mode of the construction is conceivable. Further details and advantageous embodiments of the invention will become apparent from the following description and the drawing, in which an embodiment of the ventilation arrangement according to the invention with extractor hood is illustrated in more detail. In the drawing show:

1 is a perspective bottom view of the hood according to the invention with outlet,

Fig. 2 is a perspective plan view of the hood according to

Fig. 1,

3 is a partially sectioned end view of the hood according to a line III-III in Fig. 2,

4 is a partially sectioned side view along a line IV-IV in Fig. 1,

Fig. 5 is a perspective bottom view similar to FIG. 1 with further

Individual parts in the area of the diversion chamber,

6 is an enlarged sectional view according to VI in Fig. 5,

7 shows a sectional view similar to FIG. 4 with respective adjusting assemblies in the region of the inner discharge openings, FIG. 8 is a sectional view along a line VIII-VIII in Fig. 7,

9 is a perspective plan view in partial section on the

Extractor hood with additional fresh air connection,

Fig. 10 is a sectional view of the system according to a line X-X in

Fig. 9,

11 is a sectional view of a ventilation arrangement with an extractor hood,

12 is a perspective view obliquely from below on the hood according to FIG. 11,

13 is a perspective plan view of the hood according to FIG. 12,

14 is a side view of the hood according to FIG. 12,

Fig. 15 is a sectional view of the hood according to a

Line A-A in Fig. 14,

16 is a bottom view of the hood according to FIG. 14, 17 is a plan view of the hood according to FIG. 14,

18 is a sectional view of the hood according to a

Line B-B in Fig. 17,

19 is a bottom view of the hood similar to FIG. 12, and

FIG. 20 shows a sectional view similar to FIG. 15 with laminar flow lines of a cover which introduces the circulating air and the air inlet of the hood.

In Fig. 1 shows an oblique view from below a generally designated L ventilation arrangement to which a generally designated 1 extractor hood is connected. This extractor hood 1 is provided in particular in the form of a fume hood for the kitchen area of a marine equipment, with general applications in kitchens of restaurants, houses or wet rooms of other buildings are conceivable.

This extractor hood 1 in this case has a housing-like structure known per se (EP 1 310 740 A1) and can be connected to a venting system 3 by means of an outlet nozzle 2 or the like. In conjunction with FIG. 2 and FIG. 3, it becomes clear that this extractor hood 1 with an upper ceiling part 4 and in each case angled from this longitudinal and transverse side parts 5, 6 and 7, 8 a in one Building site (Fig. 3) downwardly open vapor receiving chamber 9 forms. Under the action of an external suction drive (not shown) generating an air stream S, S '(FIG. 1, FIG. 3), water and / or greasy vapor is removed from the vapor receiving space 9 via a separator 10 in a channel generally designated K (FIG. Fig. 3) received and forwarded as largely purified exhaust air T to the outlet port 2 out.

The exhaust hood 1, in the inventive design as the filtered exhaust air T receiving channel K at least one distribution shaft 11, 11 ', which cooperates with an at least partially integrated into the hood structure discharge chamber 12. For this purpose, the distribution shaft 11, 11 'in the connection region to the discharge chamber 12 out with respective discharge openings 13, so that the formed in the flow direction S' behind the separator 10 exhaust air flow T reaches predetermined "pathways" in the discharge 12 and from this as Exhaust air T '(Fig. 3, Fig. 10) can be sucked (suction direction S, Fig. 1).

The optimum design of this two-chamber functional unit forming extractor hood 1 provides that the discharge chamber 12 is provided in particular only with one of the outlet 2. In this case, constructive variants can be carried out so that several distribution wells 11, 11 'with the only one discharge chamber 12 cooperate. It is also conceivable that the discharge chamber 12 in the longitudinal direction (Fig. 1) also forming a plurality of subregions spatial structures R (Fig. 5) with z. B. transverse walls and / or guide channels may have, so that the flow conditions in the discharge chamber 12 is influenced or can be adjusted or regulated by varying arrangements (not shown).

From the perspective view according to FIG. 1 it is clear in conjunction with the sectional illustration in FIG. 4 that the at least one distribution shaft 11, 11 'is provided in the region towards the discharge chamber 12 with a partition wall 14 having the discharge openings 13. The possibility is shown of providing the distribution shaft 11, 11 'or its respective partition 14 with a variable number of discharge openings 13. Likewise, it is provided that the discharge openings 13 are formed with differently sized or contoured passage cross-sections and constructively extended variants with adjustabilities or complete closure of the openings can be provided.

It is clear from the illustrations according to FIGS. 1 and 3 and FIGS. 5 to 10 that the extractor hood 1 has two outwardly directed filter parts 15 as distributing ducts 11 and 11 ', which are essentially mirror images of the longitudinal center plane M are arranged and all of the discharge openings 13, 13 'respectively open into the substantially centrally arranged discharge chamber 12.

This extractor hood 1 having at least one distribution shaft 11, 11 'and a discharge chamber 12 is advantageously provided as a preassembled structural unit, so that in a functional space planned especially as a ship kitchen or the like, only in the area of the single outlet nozzle 2 a connection with the external suction drive having venting system L is required and thus a quick and relatively easy installation is possible. In this case, welding connections which have been carried out in a complicated manner in the area of several pipe connections in the area above the system have been dispensable so far, and the installation of the connection 2 can be carried out comparatively easily even in a confined space.

To further improve this assembly situation, provision is made for the outlet connection 2 to be connected to the ceiling part 4 in its pre-assembly position (FIG. 2) prepared for installation so that a displacement possibility exists for the individual components in respective directions indicated by arrows A, B, C so that the connection to a connection line already stationary at 3 is correspondingly variably possible and position deviations can be easily corrected in accordance with varying installation conditions.

The concept of the two-chamber system according to the invention provides that the extractor hood 1 in the area of the vapor receiving chamber 9 or the useful zone Z located below it at a distance H (FIG. 4) is directed to respectively predetermined suction powers or air volume throughputs (arrows S, S '). ), wherein the separator 10 and / or the distribution wells 11, 11 'with the discharge chamber 12 form a correspondingly cooperating system.

In the illustrated embodiment, it becomes clear that at least in the region of the inlet-side separator 10 of the distribution shaft 11, 11 ', in each case in the form of flap pen or sliders formed adjusting elements 16 (Fig. 1) are provided. These adjusting elements 16 can be displaced in a pushing direction D along a guideway 17 in such a way that an inlet region for the distribution shaft 11, 11 'which is required in each case according to the design of the useful zone Z is released or covered. This principle of changing the air inlet S 'or the internal flow path T for the aspirated at different positions haze or the redirected exhaust air T' is selectively achieved in the transition region of the distribution shaft 11, 11 'to the discharge 12 through the partition 14. For this purpose, adjusting elements 16 'are optionally provided (FIG. 4). In each case, these can be designed in the form of plates 18, which are held displaceably in a setting direction E and permit the change in the passage cross-section in the region of the discharge openings 13 (FIG. 4).

It is understood that the above-described adjusting elements 16, 16 'in an expedient embodiment can be operated by hand. It is also conceivable that a motor drive is integrated into the system for adjusting the control assemblies 16, 16 '(FIGS. 5 to 8). A further simplification in the region of the respective openings 13 or the filter 15 is possible in that in the region of all of the adjusting elements 16 and / or 16 'by means of only one respective drive or operating part, the adjustment is possible or only having a corresponding length Flap can detect all openings at 16 or 16 '(not shown).

For the construction of a comparatively low installation height P (Fig. 4) having extractor hood 1, the discharge chamber 12 in an expedient embodiment thereof formed, that only a provided in relation to the ceiling part 4 in the manner of a false floor support wall 19 is installed in the box-like construction (Fig. 3). By a distance F of this support wall 19 to the ceiling part 4, a respective optimum internal height of the discharge chamber 12 is defined and at the same time to the lateral distribution wells 11, 11 'down the height of the partition 14 given.

It makes sense to form the total support wall 9 as a removable plate or in the region of the mounting wall horizontal support wall 19 respective access openings (Fig. 1: open) so that in each case the discharge chamber 12 from the vapor receiving chamber 9 ago comparatively easily accessible (Figures 1, 4, 5). In this case, the inspection opening provided in the supporting wall 19 is provided with a flap 22 (FIGS. 4, 5) which has an edge seal 21 and is held pivotably. In the longitudinal direction of the extractor hood 1 (FIGS. 1, 5), several of the cleaning flaps 22, 22 ', 22 "are advantageously lined up so that partial or complete access to the interior of the discharge chamber 12 is achieved in the region of the support wall 19 Advantageous embodiment, a lamp 23 is integrated in at least one of the cleaning flaps 22, 22 ', 22 ".

In a further embodiment, provided in the region of the support wall 19 cleaning flap 22, 22 ', 22 "have a closing position in the manner of a collecting container acting contour G in the manner of a trough or trough-like shape, such that in this separated from the exhaust air T. oil and / or water residues can be absorbed. Zugshaube 1 possible and the risk of fire in appropriate kitchen rooms o. The like. Zones Z substantially reduced.

FIG. 5 shows an embodiment of the extractor hood 1 in which design details are optimized in the region of the diversion chamber 12 or of the distribution shaft 11, 11 '. Starting from the mist feed into the system, which is indicated by an arrow S ', the filtered exhaust air T in the area of the distribution wells 11, 11' now enters the suction boxes R (FIG. 5) lined up by dividing walls 24. By this system extension, the precision and positionally accurate air flow within the two-chamber assembly is further improved because now directed to the useful zone Z suction S ^{1 can} also be concentrated on one or more of the boxes R, within the distribution wells 11, 11 'a "Transverse displacement" of the air flow T is avoided and thus the suction power losses are reduced during the transition into the discharge chamber 12. For practical application, this means that, for example, in the area of a large kitchen panel with several burners targeted only one of these burners can be influenced with the suction S 'and thus optimize the efficiency in an operating area.

A further improvement of the exhaust control in the region of the diversion chamber 12 is achieved in the embodiment according to FIGS. 5 to 8 in that in the region of the partition wall 14 or its discharge openings 13 "motor-controlled actuating elements 16" are arranged and these are provided with a Swivel wing 18 'trained flap cooperate (Fig. 6). This allows a flexibly controllable change in the Lassquerschnitts be achieved, and at the same time there is a corresponding deflection of the delivered air flow in pre-adjustable or with the servomotor 16 'changeable directions (arrow U, Fig. 6). It is understood that this construction with the pivoting wings 18 'is advantageously carried out so that each of the boxes R is assigned an individually controllable adjusting element 16 ".

From the illustrations according to FIG. 9 and FIG. 10, a further embodiment of the housing-like construction of the extractor hood 1 becomes clear, wherein the latter is provided with supply line 25 receiving at least one respiratory period. Corresponding to the size of the extractor hood 1 it is provided that a plurality of supply lines 25, 25 ', 25 "are arranged in particular in the direction of the longitudinal side walls 5, 6. These supply lines each extend from the area of the upper ceiling part 4 with a guide angle W to the useful zone Z With a directional arrow FL, the demand for fresh air into the system is indicated by way of example in FIG. 10, whereby this air supply can be aligned so that an unwanted immediate transfer in the suction direction S 'of the exhaust air Here, too, respective adjustable guide elements, closing flaps or the like may be provided in the region of the outlet opening 26 (not shown).

In Fig. 11 shows a sectional view of the principle of a generally designated L 'ventilation arrangement to which a total of 1' designated extractor hood is connected. The extractor hood 1 'is connected by means of an outlet 2' (Fig. 13) to a venting system 3 ', wherein the Hood has a box-like structure. In each case, longitudinal and transverse side parts 5, 6, 7, 8 which are angled downwards from a ceiling part 4 (FIG. 17) form a vapor receiving chamber 9 which is open at the bottom in the installed position (FIG.

For this purpose, water and / or greasy vapor can be taken up via a separator 10 'in a channel K' and forwarded as largely cleaned exhaust air to the outlet nozzle 2 '(arrow representations T, T). The extractor hood 1 'is designed in such a way that it has a distribution shaft 11 "having at least one respective discharge opening 13' as the filtered exhaust air T, T receiving channel K. This opens into an outlet chamber 12 'integrated with the outlet structure, at least in regions 2 '(Fig. 11, Fig. 15).

According to the invention, in this embodiment of the extractor hood 1 ', the channel K' is provided with a return connection TR which detects at least a partial volume TV of the filtered exhaust air T, T in the region of the distribution shaft 11 "and / or the discharge chamber 12 ' in that the filtered exhaust air T, T 'in the region of the chamber K' are subdivided into respective sub-volumes to be diverted by means of a plurality of return connections TR (not shown) and these are returned to the space in the area in front of the exhaust-side ventilation system 3 ' be that each removed from the channel K 'partial volume TV of the exhaust air T, T are returned directly to the kitchen area (also not shown). From the flow pattern indicated in FIG. 11, the at least one partial volume TV of the exhaust air T 'is introduced into a fresh air FL' containing feed line 25 'and then through an outlet 26' - for example laterally next to the extractor hood 1 '- a mixture of cleaned exhaust air T 'and outside the room supplied fresh air FL' is returned to the room.

A further optimization of the construction of the extractor hood 1 'envisages that an air distributor 27 can be provided for the transfer of the partial volume TV into the region of the returnable connection TR which can be variably positioned in the system. With this manually or automatically operated or mechanically adjustable air distributor 27 is in the simplest case by appropriate changes or adjustments of passage cross-sections at the input E 'of the return connection TR control or regulation of the size of the respective sub-volume TV possible. In an expedient embodiment, a fan 29 having a controllable electric drive 28 is provided as an air distributor 27.

A conceivable embodiment of the air distributor 27 provides that it is designed in the form of a fan 29 (FIG. 11) located above the chamber K ', the latter being in contact with the supply air line 25' by means of a connecting line receiving the partial volume TV. In the illustrated embodiment, the air distributor 27 is provided above the discharge chamber 12 'as an additional assembly, which can be arranged in the immediate vicinity of the outlet nozzle 2'. Likewise, a coupling to the upper venting system 3 'is conceivable (not shown). A further embodiment of the system provides that the axial or fan 29 'which can be integrated into the chamber K' or the diversion chamber 12 'is provided as the sole or additional air distributor 27' (FIG. 11, at 13 ", FIG. 15) Fan 29 'is a discharge of a partial volume TV', such that this sub-volume TV can be returned to the vapor receiving chamber 9. Again, a discharge to the outside of the hood 1 "out conceivable (not shown).

This embodiment of the system is shown in more detail in FIG. 15, wherein it becomes clear that the extractor hood 1 "in the region of its channel K 'starting from an inlet-side filter part 15', the subsequent distribution shaft 11" and subsequently the discharge chamber provided with respective discharge openings 13 ' 12 'and from this by means of the return connection TR' the partial volume TV 'of the exhaust air T, T opens into a transfer chamber 30 with an outlet 31 to the vapor receiving chamber 9 out. In this embodiment, which is based on the general return connection TR according to FIG. 11, the air distribution illustrated in FIG. 12 to FIG. 19 is now configured with the additional axial fan 29 'such that the in FIG. 15 (with corresponding arrow directions) indicated return of the partial volume TV is possible to the surrounding area.

Further constructive improvements are provided in this system of the hood 1 "which acts in the manner of an air" circuit ", for example, the distribution shaft 11" in the region of its filter part 15 'having an inclined installation position (angle W, FIG Liquid discharge 32 provided, in particular special the discharge of condensing water is provided and in the exhaust air T contained oil components are received by the filter part 15 '.

The partial volume TV 'detected in the region of the return connection TR' reaches behind the axial fan 29 'in the region of adjustable closing flaps 33, and after passing through the transfer chamber 30, the partial volume TV' is covered by a cover 34 - with sufficient distance to the intake area of the vapor receiving space 9. delivered into the environment or the room. It can be provided that the cover 34 is provided with additional, the flow direction of the back of the room supplied subvolume TV 'influencing steering components, so that an optimal introduction and mixing of subsets of air volume in the room with the recirculated portion TV is achieved ,

In constructive developments of the system, it is conceivable that in the region of the hood 1 ', 1 "for receiving respective partial volume TV, TV also several transfer chambers 30 may be provided with corresponding fans 27' (not shown) or the extractor hood 1 ', 1" in a circulating air position, the exhaust air T is completely returned to the room, wherein a corresponding closure part (for example, at E ', Fig. 11) in the region of the outlet nozzle 2' is set. Thus, the system can be variably adjustable with a return proportion of the partial volume TV, TV from 0% to 100%.

It is also clear from the illustrations of the hood 1 "according to FIGS. 12 to 19 that further components which can be used for influencing the extracted air volume are shown in FIG this compact system are integrated. For example, a special UV tube 35 is provided in the region behind the filter part 15 '. In the region of the diversion chamber 12 'corresponding cover flaps 37, 37' are provided, so that optimum inspection openings (FIG. 19) are achieved. In addition, an additional sprinkler 40 is connected to the system in the region of the central lighting means 38.

The construction also provides that for a connectable with this washing system corresponding leads 41 and internal connections 42 are provided. It is understood that the above-described components in the region of the discharge openings 13 'can be provided with automatically controllable flap parts 43.

The extractor hood 1 "is shown in Fig. 20 similar to Fig. 15, with the other part names not being shown in favor of the overview, rather, respective flow lines TR" indicate a deliberate "internal" deflection of the flow between cover 34 and air inlet 10. From this flow TR "results in a negative pressure zone UZ, so that the exhaust air flow AL receives an additional" Leitimpuls "in the sense of better room ventilation, such that the exhaust air AL is additionally raised in a by the negative pressure UZ and the flow TR" effected conveying direction FH and thus the energy balance can be improved by up to 30% with a view to the delivery rate of the system. With the present construction can thus be realized energy-saving hood, which is increased with little technical effort in their efficiency and thus allows financial savings.

Claims

claims

1. Ventilation arrangement with an extractor hood (1), in particular in the form of a fume hood for the kitchen area, wherein the means of an outlet (2) o. The like. Connectors to a venting system (3) connectable extractor hood (1) has a housing-like structure and with a Upper ceiling part (4) and each of this angled longitudinal and transverse side parts (5, 6, 7, 8) in the installation position downwardly open vapor receiving chamber (9), from the out water and / or fatty mist via a separator (10 ) is received in a channel (K) and forwarded as largely cleaned exhaust air (T, T) to the outlet port (2), characterized in that as the filtered exhaust air (T, ΊΡ) receiving channel (K) at least one respective discharge openings (13 ) having the distribution shaft (11, 11 ') is provided and this opens into an at least partially integrated into the housing structure discharge chamber (12) with outlet (2).

2. Ventilation arrangement according to claim 1, characterized in that the discharge chamber (12) is provided with only one outlet nozzle (2).

3. Ventilation arrangement according to claim 1 or 2, characterized in that the only one Ausleitkammer (12) with a plurality of distribution shafts (11, 11 ') cooperates.

4. Ventilation arrangement according to one of claims 1 to 3, characterized in that the discharge chamber (12) and / or the distribution shaft (11, 11 ') each having a plurality of subregions forming spatial structure (R) has (s).

5. Ventilation arrangement according to one of claims 1 to 4, characterized in that the at least one distribution shaft (11, 11 ') in the region to the discharge chamber (12) out with a discharge openings (13) having partition (14) is provided.

6. Ventilation arrangement according to one of claims 1 to 5, characterized in that the distribution shaft (11, 11 ') or the partition wall (14) in a variable number provideable Ausleitöffnungen (13) and these individually or jointly adjustable to different passage cross sections and / or are closable.

7. Ventilation arrangement according to one of claims 1 to 6, characterized in that in the hood (1) a plurality of each outwardly directed filter parts (15) as a separator (10) having distribution slots (11, 11 ') are integrated and their discharge openings (13 ) in each case opposite open in the substantially centrally arranged discharge chamber (12).

8. Ventilation arrangement according to one of claims 1 to 7, characterized in that provided in the region of the diversion chamber (12) a plurality of selectively or simultaneously usable outlet nozzle (2) and / or these in the region of the ceiling part (4) in a pre-assembly position displaceable (arrow A , B, C) are held.

9. Ventilation arrangement according to one of claims 1 to 7, characterized in that the at least one distribution shaft (11, 11 ') and a discharge chamber (12) having exhaust hood (1) as a preassembled unit available and only in the region of an outlet (2) to be connected to the ventilation system (L) with the external suction drive (S).

10. Ventilation arrangement according to one of claims 1 to 9, characterized in that the extractor hood (1) in the region of the separator (10) and / or the distribution shaft (11, 11 ') is adjustable to predetermined suction or air volume flow rates.

11. Ventilation arrangement according to one of claims 1 to 10, characterized in that the extractor hood (1) in the region of the distribution shaft (11, 11 ') and / or the discharge chamber (12) with respective the flow paths or runs of the sucked vapor or of the forwarded exhaust air (T, T ') influencing control assemblies (16, 16', 16 ") in the form of pivoting flaps and / or sliders (18, 18 ') is provided.

12. Ventilation arrangement according to claim 10 or 11, characterized in that the control assemblies (16, 16 ') by hand and / or by means of a motor drive can be operated.

13. Ventilation arrangement according to one of claims 1 to 12, characterized in that the discharge chamber (12) has a relation to the ceiling part (4) of the hood (1) formed in the manner of a false floor supporting wall (19).

14. Ventilation arrangement according to claim 13, characterized in that the discharge chamber (12) is provided for the useful zone (Z) defining the vapor receiving space (9) out with at least one inspection opening in the region of the support wall (19).

15. Ventilation arrangement according to claim 13 or 14, characterized in that in the support wall (19) provided with an inspection opening having an edge seal (21) flap (22, 22 ', 22 ") is provided.

16. Ventilation arrangement according to one of claims 13 to 15, characterized in that the interior of the discharge chamber (12) by a juxtaposition of several of the cleaning flaps (22, 22 ', 22 ") in the region of the support wall (19) is accessible.

17. Ventilation arrangement according to one of claims 13 to 16, characterized in that in the region of the support wall (19) provided cleaning flaps (22, 22 ', 22 ") have a closing position in the manner of a collecting container acting contour (G), in such, that in this from the exhaust air (T, T ') separated oil and / or water residues can be accommodated.

18. Ventilation arrangement according to one of claims 1 to 17, characterized in that the housing-like structure (1) with at least one fresh air receiving supply line (25) is provided.

19. Ventilation arrangement according to claim 18, characterized in that as supply line (25) at least one from the region of the upper ceiling part (4) for Längsbzw. Transverse side part (5, 6, 7, 8) extending supply air channel (26) is provided.

20. Ventilation arrangement according to claim 18 or 19, characterized in that starting from the upper ceiling part (4) a plurality of supply lines (25, 25 ', 25 ") are provided.

21 ventilation arrangement with an extractor hood (1 ', 1 ") according to the preamble of claim 1, wherein as the filtered exhaust air (T, T') receiving channel (Κ ') at least one respective discharge openings (13') exhibiting Verteilschacht (11" ) is provided and this in an at least partially integrated into the housing structure Ausleitkammer (12 ') with outlet (2') opens, characterized in that the channel (Κ ') in the region of the distribution shaft (11 ") and / or the discharge chamber ( 12 ') is provided with at least a partial volume (TV, TV) of the filtered exhaust air (T, T') detecting feedback connection (TR, TR ').

22. Ventilation arrangement according to claim 21, characterized in that the filtered exhaust air (T, T) containing channel (Κ ') is provided with a plurality of return connections (TR, TR') for a respective diverted subvolume (TV, TV).

23. Ventilation arrangement according to claim 21 or 22, characterized in that from the channel (Κ ') taken partial volume (TV) of the exhaust air (T, T) directly in the kitchen area o. The like. Room is traceable.

24. Ventilation arrangement according to one of claims 21 to 23, characterized

in that at least one of the partial volumes (TV, TV) of the exhaust air (T, T ') can be introduced into a supply line (25') containing fresh air (FL ').

25. Ventilation arrangement according to one of claims 21 to 24, characterized

in that at least one of the partial volumes (TV, TV) which can be separated by the return connection (TR, TR ') from the exhaust air (T, T') can be controlled by means of an air distributor (27, 27 ').

26. Ventilation arrangement according to claim 25, characterized in that as the air distributor (27, 27 ') a controllable drive (28) exhibiting fan (29, 29') is provided.

27. Ventilation arrangement according to claim 25 or 26, characterized in that the air distributor (27) as a above the chamber (Κ ') befindlicher fan (29) is provided, which rests by means of a connecting line (TV) to the supply air line (25 ').

28. Ventilation arrangement according to claim 25 or 26, characterized in that as air distributor (27 ') in the chamber (Κ') integrated axial fan (29 ') is provided, whose output in the vicinity of the vapor receiving chamber (9) opens.

29. Ventilation arrangement according to one of claims 21 to 28, characterized

characterized in that the extractor hood (1 ") in the region of its channel (Κ '), starting from an inlet-side filter (15'), the subsequent distribution shaft (11 ') and subsequently thereto the discharge chamber (12') provided with respective discharge openings (13 ') and from this by means of the return connection (TR '), the partial volume (TV') of the exhaust air (T, T ') opens into a transfer chamber (30) with output (31) to the vapor receiving chamber (9).

30. Ventilation arrangement according to claim 29, characterized in that the distribution shaft (11 ') in the region of its inclined installation position (angle W) having filter part (15') has a liquid discharge (32).

31. Ventilation arrangement according to claim 29 or 30, characterized in that the transfer chamber (30) has a flow direction of the recirculated partial volume (TV) influencing cover (34).

32. Ventilation arrangement according to one of claims 29 to 31, characterized in that the partial volume (TV ¹ ) in a plurality of transfer chambers (30) is displaceable.

33. Ventilation arrangement according to one of claims 29 to 32, characterized in that with the extractor hood (1 ', 1 ") in a circulating air position, the exhaust air (T, T') is completely traceable in the surrounding space