DE60307088T2 - ARRANGEMENT FOR DISPLACEMENT VENTILATION WITH A SUPPORTING BODY WITH CONNECTABLE SUPPORT LEVELS FOR SUPPORTING DEVICES SUCH AS A FILTER MODULE - Google Patents

Abstract

A device (1) for displacement ventilation of a room and including a filter for filtering supply air supplied to the device, including a filter-housing module (3) having a filter for supply air and a supply air conduit connection (4), and a support body consisting of a rear portion (12) and at least one connectable supporting plane (15) for supporting said filter-housing module (3).

Description

Field of the invention

The The invention relates to a positive displacement ventilation device according to the preamble of claim 1. Such a device is known from US-A-6358139.

Description of the stand of the technique

The Principle of displacement ventilation is that Air in a room through one or more low-positioned Air supply means supplied becomes. The velocity of the supply air through the feed surfaces of the Air supply means is kept low, resulting in a small amount of turbulence leads.

The Supply air from the air supply means is also something under tempered, i. she has a little less Temperature as the temperature of the air in the room, which causes that the supply air is above the ground after it has left the air supply means spreads and fills the room with clean supply air from below. at The use of it becomes slightly warmer air, among other things Particles and unwanted Contains compositions of gases, up above pressed the clean air and typically by exhaust means positioned high in the room dissipated.

at known air supply means for displacement ventilation, at the supply air from a central ventilation system with air filters supplied will, contains a housing comprising the means a conical air distributor and a permeable wall through which the supply air at a low speed in the intended for ventilation Room flows.

The known air supply means work for the displacement ventilation good, but their construction brings some restrictions their flexibility with himself.

Task and most important Features of the invention

It The object of the present invention is to provide a device for positive displacement ventilation, the greater flexibility than the provides the devices of the prior art.

These Task is in a device mentioned by the Characteristics of the characterizing part of claim 1 achieved.

hereby becomes a device with the possibilities a simple efficient and quick adaptation to different Applications, simplifying both the manufacture as well the assembly and maintenance of positive displacement ventilation devices of the invention. Further, the invention provides a wide ready-made modular design of displacement ventilation devices, so that a limited number of base modules can be used to a big Number of differently configured air supply means to form the to the conditions prevailing in a particular room and at the desired in this room Effect can be adjusted.

Especially The device preferably includes a circulation module for Pre-filtering the circulating air in the room.

Further The device preferably includes a fan unit for generating the Circulation. Especially in combination with the above Circulation unit, whereby the circulation air in front of the inlet in the fan unit is filtered, which is a particular advantage. In particular, will further ensure that a circulation air filter meets the conditions and expected predominant impurities in the particular Room is adjusted while the filter housing module per essentially to the prevailing conditions in the supply air is adjusted.

By Attach a sound absorber to the fan unit inlet or outlet will ensure that disturbing Noise very much is greatly reduced.

By the provision of the fan unit in the block of a sound absorbing material is efficiently avoided that vibrations from the fan unit as a structure-borne noise transferred to the frame of the device and further on parts of the building become. Preferably, the block is with the intake sound absorber and in particular the block is preferably an integral one Part of the intake sound absorber, since this is the provision for sound absorption improves and reduces the risk of leakage noise.

It is advantageous if the sound absorbers of a synthetic, open-cell foam material are made and a substantially airtight surface layer on their outer surfaces. This achieves a very good sound-absorbing effect. For clarification, it should be noted that air channels inside the parts of the sound absorber not with any airtight Layer are coated, but that the open pores of the foam material across from these channels are open.

By the device with a modular body consisting of a back (for example, a Back plate) and thereon attachable at right angles holding surfaces, a simple manufacture and assembly of air supply means is achieved according to the invention. In particular, and on occasion, the support surfaces may consist of plates having short, continuous tubular members which abut one another with the sound absorbing members disposed on each side of the support surface to secure the sound absorbing members and the formation of channels in conjunction with and through to simplify the holding surfaces.

Further Advantages of the invention will become apparent from the following detailed description out.

Short description of drawings

The Invention will now be described in more detail with reference to the accompanying drawings Drawings described. These show:

1 in an exploded view of a device for displacement ventilation according to the invention,

2 a filter housing module for use in a device according to the invention,

3 another filter housing module for use in a device according to the invention,

4 an inlet sound absorber for the device in 1 in detail,

5 a first part of an exhaust sound absorber of the device in 1 .

6 a second part of the exhaust sound absorber for use in a device according to 1 .

7 in a diagrammatic way, the construction of a holding body of a device according to the invention.

Description of the embodiments

The displacement ventilation device 1 in 1 is with a supply air line 2 connected to a central air supply system. The supply air line 2 is via a supply air connection 4 with a filter housing module 3 connected, which has a filter on its front.

The displacement ventilation device 1 includes next to the filter housing module 3 also a circulation module 5 , which is provided with a circulation air filter. The circulation module 5 is over two circulation pipes 7 with a block containing a fan unit 6 carries, via an inlet sound absorber 8th connected, which is intended by the operation of the fan unit 6 absorbing inlet noise.

The outlet of the fan unit 6 goes through a channel through an exhaust sound absorber 9a . 9b is sufficient, which from a first part with a first connecting part 10 for connection to the fan unit and a second connection part 11 for connection to the filter housing module 3 consists.

Circulation air from the fan unit is thus through the channel in the first part 9a passed the exhaust sound absorber, then on through the second part 9b the exhaust sound absorber, in which the flow is diverted by substantially in 180 °, thus the filter housing module 3 at one end of the supply air connection 4 connect opposite end.

The device 1 includes one from a back 12 existing body, which consists essentially of a bent to fit in the corner of a room by 90 ° plate. At this back are a number of holding surfaces 13 . 14 . 15 and 16 by snapping or fastened in a corresponding manner, so that they are substantially at right angles to the two main parts of the back part 12 can be arranged. The holding surfaces 13 - 16 keep the circulation module 5 and the inlet connection to the inlet sound absorber 8th , comprise an interface between the block of the fan unit and the outlet sound absorber or the interface between the two parts 9a . 9b of the exhaust sound absorber, and at the same time make connections for the filter housing module 3 ready.

The bottom of the holding surface 16 can be formed to hold the control equipment contained in the device.

A cover consisting of a perforated plate for the passage of air is formed around the filter housing module 3 and the circulation module 5 cover. At a lower end of the device 1 is a rounded, recessed cap 18 arranged. The fan unit block is with a lid 19 covered, which is provided with an internal sound insulation (not shown).

With the above-described construction, the configuration of the positive displacement ventilation device 1 very compact and allows the integration of different functions in a limited space, while a great flexibility and very strong modu larisierte construction be provided.

If the filter housing module 3 and the circulation module 5 have fulfilled their function, they are easily replaceable by removing the cover 17 , Closing the supply air line 2 , Removing the Filter Housing Module 3 and the circulation module 5 after sealing the inlet or outlet and after sealing the front of the filter with the aid of a cover or the like, and then positioning new modules.

In 2 is the filter housing module 3 on an enlarged scale with the connections 4 respectively. 20 shown. The filter housing module is designed as a closed container and preferably made of a plastic material, such as polycarbonate, made of two halves, which are sealingly connected to each other with a circumferential flange. 21 features three filter parts with efficient filters that seal into the inside of the filter housing module 3 are used.

3 shows the circulation module 5 that only one filter section 22 and two connections 23 has, which in this case as an outlet of the circulation module 5 serve.

It should be noted that the device according to the invention can be easily equipped with an exhaust air module, which in this case is in 1 preferably above the circulation module 5 arranged and via its inlet or inlets, preferably with the omissions 23 in 3 correspond, is connected to at least one central exhaust duct.

In 4 is the intake sound absorber 8th shown in this case in one piece with a block for receiving the fan unit 6 is. This block covers the lower section of the sound absorber in 4 and contains a seat 30 for the fan unit 6 , The fan unit 6 includes a centrifugal fan with downwardly directed outlet, as seen in the drawing. Air is through air ducts 24 in the inside of the seat 30 the fan unit 6 where then the air from the fan block through the outlet 31 is pressed, as usual with centrifugal fans.

The fan unit 6 is shown in the drawing for reasons of clarity in a position in which she is out of her seat 30 is removed. The fan unit 6 includes a motor (not shown), a centrifugal fan which is opened in two axial directions for suction from both axial directions of the fan, and a downwardly directed outlet.

The attachment of the fan unit inside the seat 30 The easiest way to do this is by pressing in the unit, which is held in the inserted position by the friction of the adjacent elastic parts of the seat.

In 5 is the first section 9a the exhaust sound absorber shown on an enlarged scale. The air duct 25 starts with a part 25 of rectangular cross section, thus substantially in shape with the outlet 31 ( 4 ) and changes in the inside of the part 9a in a circular cross section over.

The second part 9b of the exhaust sound absorber is in 6 shown, the inlet hole 26 this part is shown, which is an extension of the canal 25 of the part 9a in 5 includes. In the inside of the part 9b forks the channel 26 in two channels 27 and 28 to enter the second connecting part 11 to change the exhaust sound absorber. In operation, the flow is thus reversed, so that a reversal of the flow is achieved by substantially 180 °.

Preferably consist of all parts of the device according to the invention, The sound absorbers include, from whole parts of a synthetic open-pored foam material. On the outside are the whole elements the sound absorber surface-coated, to thereby form an airtight outer layer to form a clear and efficient pipeline damping effect provide. A suitable material for use in the sound-absorbing Parts are polyurethane foam, and the surface coating can be one suitable synthetic lacquer consist, for example of a polymeric surface coating. However, it is not excluded that the sound absorber off consist of more or fewer parts. In principle, a single integral element are used, which consequently sound absorber for inlet and Outlet as well as the seat of the fan unit would contain.

In 7 the holding body of the device is shown in greater detail, wherein it is a back part 12 contains, which consists essentially of a bent by a 90 ° angle plate and four retaining surfaces. The holding surfaces are with a number of holes 29 according to the present use, wherein the hole or the holes in each individual holding plate corresponds to the respective use. As indicated above, a pipe member is preferably inserted into each hole (not shown) to connect to an adjacent sound absorbing member or filter housing module.

A connection of the holding surfaces with the back part 22 is suitably, for example through cut out tongues in a downwardly bent corner piece 32 on the holding surface 13 reached, which in a pocket-like recess 31 with an opening 33 in the back 12 rest.

It It should be noted that other forms of devices according to the invention as a quarter-circle, for positioning are provided in a corner, can be provided. at other shapes, such as semicircular for positioning against a flat wall or completely circular or elliptical for freestanding purposes or reset in a wall, the back wall is preferably as a flat plate with maybe bent parts designed to hold the retaining surfaces, which ever if necessary, by opportunity, as well as by jib-like Elements can be kept.

Of the Fan can be configured differently, for example with a Inlet only from one direction. Likewise, other basic types of fans may be used be, for example, axial fan.

Claims (10)

Contraption ( 1 ) for displacement ventilation of a room with a supply air ( 2 )-Connection ( 4 ) for connection to a central air supply system and a filter for filtering the supply air supplied to the device, characterized in that - the device is a filter housing module ( 3 ) containing the filter for filtering through the fresh air line connection ( 4 ) contains supplied supply air, - the device contains a holding body, which consists of a back ( 12 ) comprising provisions for connection to holding surfaces, and - at least one holding surface ( 15 ) with the back for holding the filter housing module ( 3 ), wherein the filter housing module ( 3 ) consists of a completely replaceable closed module. Device according to claim 1, characterized by - a circulation module ( 5 ) with a circulation air filter for filtering circulating air from the space in front of the inlet into the filter housing module ( 3 ), whereby both the supply air and the circulating air are filtered, and - a holding surface ( 13 ) for holding the circulation module ( 5 ) and for connection to the back ( 12 ). Device according to claim 1 or 2, characterized by - a fan unit ( 6 ), which is held in a block of a sound absorbing material, and - a holding surface ( 14 ) for holding the block and for connecting to the back ( 12 ). Apparatus according to claim 3, characterized in that the block with an inlet sound absorber ( 8th ) for the fan unit ( 6 ) connected is. Apparatus according to claim 4, characterized in that the block is an integral part of the intake sound absorber ( 8th ). Device according to one of the preceding claims, characterized in that the fan unit ( 6 ) contains a centrifugal fan. Device according to one of the preceding claims, characterized in that the exhaust sound absorber ( 9a . 9b ) is connected downstream of the fan unit. Apparatus according to claim 7, characterized in that the exhaust sound absorber a first part ( 9a ) for connection to the fan unit ( 6 ) and a second part ( 9b ) for connection to the filter housing module ( 3 ), and that a holding surface ( 15 ) comprises an interface between the parts of the exhaust sound absorber. Device according to one of the preceding claims as dependent on claim 2, characterized in that the circulation module ( 5 ) comprises a generally replaceable closed filter housing module. Device according to one of the preceding claims, characterized by - an exhaust air module comprising a closed filter housing module with an exhaust filter and is replaceable as a whole. and - a holding surface for holding the exhaust module and for connection to the rear part ( 12 ).