DE202008017463U1 - Modular ventilation system - Google Patents

Abstract

Modular ventilation system for ventilating and / or tempering rooms of a building with
a first module (2) to be arranged near the façade within the room and / or its walls or ceilings, in which a room air or circulating air fan (3) is provided for supplying a tempered air flow into the room,
a second module (4), in which a heat exchanger (5) is provided, through which the air stream to be tempered and a heating or cooling medium flow,
wherein the heat exchanger (5) between a in the second module (4) provided room air opening (11) for sucking air from the room and in the first module (2) provided Zuluftöffnung (13) for discharging the air flow is arranged in the room .
and wherein the room air or recirculation fan (3) relative to the heat exchanger (5) is arranged such that the air flow from a Ansaugplenum (12), which is provided within the second module (4) above the heat exchanger (5) through the Heat exchanger (5) sucked ...

Description

The The invention relates to a modular ventilation system for ventilation and / or tempering rooms of a building.

at known facade supply air equipment is the outside air through a corresponding opening in the facade and in the device sucked into the building and through blown out a convector or similar heat exchanger again. As a result, the outside air is thermally conditioned. Around the proportion of outside air to the hygienically necessary Limit the amount and thereby increase the thermal performance, that more air is blown through the convector becomes the outside air Room air, d. h circulating air, added.

This is done either by the fact that this room air or circulating air simultaneously with the outside air through the same fan over a corresponding opening in the device to the room sucked in and blown out together with the outside air through the convector becomes. Alternatively, a second fan for the Suction and blowing out of the room air are used.

From the DE 195 48 599 C2 Such a ventilation system for rooms of buildings is known, in which the ventilation unit is arranged under a window and has a building outside inlet for supply air and an outlet for exhaust air. Inside the room, an inlet for room air and an outlet for supply air and / or circulating air are provided. This known ventilation system is flush with the floor and is housed in a recess of the floor or a building false ceiling. For controlling the temperature of the air stream discharged from the outlet, a heat exchanger downstream of the ventilation unit is provided in this ventilation system.

Also from the DE 102 53 264 B4 An air-conditioning device for heating or cooling a room is known in which outside air and room air are mixed with each other and passed through a heat exchanger, wherein a fan is arranged such that it sucks outside air and conducts them together with the room air through the heat exchanger. In these known ventilation systems, the amount of admixed outside air is usually regulated by flap or the like.

at these known procedures, it is considered disadvantageous that the outside air fan overcome relatively high internal air resistance because of this, both the outside air and the circulating air suck through different openings or flaps and through the convector blow out again or by the fact that the Outside air through induction nozzles through the convector must be blown.

task In contrast, the present invention is a modular one Provide ventilation system of the type mentioned, whose components are more easily interchangeable and which in terms of the air duct over known systems improved is.

These Task is according to the invention in a modular Ventilation system solved essentially by that this one near the façade within a room and / or first or its walls or ceilings to be arranged Module in which a room air or circulating fan for supply a tempered air flow is provided in the room, and a second module, in which a heat exchanger provided is that of the air flow to be tempered and a heating or Coolant is flowed through. Invention is according to while the heat exchanger between a in the second module provided room air opening for the intake of air the space and a supply air opening provided in the first module arranged for the delivery of the air flow in the room, wherein the room air or recirculation fan relative to the heat exchanger in such a way is arranged that the air flow from a Ansaugplenum, which within of the second module provided above the heat exchanger is sucked through the heat exchanger and then through the Room air or recirculation fan promoted and over a provided in the first module Ausblasplenum and / or Supply air opening is discharged.

Thereby, that the room air or recirculation fan in the inventive Modular ventilation system both the room air and possibly outside air through the heat exchanger (convector) sucks, the air flow be blown out through the supply air opening. This allows different device variants z. B. for wall or floor mounting alone by creating that the supply air opening horizontally or vertically to blow out the air flow is arranged. The modular design of the invention Ventilation system makes it easier with at least essentially identical components differently designed ventilation systems are producible. The interchangeability of the individual modules ensures also for a particularly high repair and maintenance friendliness.

In order to enable not only a recirculation mode but also the supply of fresh air, ie outside air, according to a particularly preferred embodiment of the invention, a third module is additionally provided in the ventilation system, wherein the third module is arranged laterally next to the first and the second module. In this case, in the third module, an outside air fan for sucking in outside air through the facade of the building is provided. As a result, it is possible both in a horizontal arrangement of the ventilation system according to the invention in the ground and a vertical arrangement of Lüf processing system in the facade or parapet of a building, reach the outdoor fan through the room air opening and / or the air inlet or replace it as needed. In this case, in the third module in addition to the first two modules of the outside air fan and possibly necessary for the use of the outside air fan components, such as outside air damper, outside air filter, outside air flow sensor, outside air temperature sensor, filter monitoring sensor or the like arranged in a single, compact module combined.

This third module can be next to the first two modules in the field of Room air opening can be used easily and cassette-like. Through a closure insert can be in the installation area this third module located openings for the external air intake as well as for the discharge of the outside air initially sealed in a silencer unit be. This closure insert can be before insertion of the third module (outdoor air module) reinstall the module. It is preferred if the third module is divided into several cassettes, in particular separate cassettes for outside air fan and Outdoor air damper with outside air filter.

In Further development of this inventive idea can be found in the modular ventilation system In addition, a fourth module may be provided, which as an outdoor air silencer unit is trained. This fourth module is on the first module opposite side of the second module, d. H. towards the building interior arranged. In this embodiment of the invention Modular ventilation system, the outside air is first by the outside air fan in the third module laterally beside the heat exchanger (convector) and under the room air opening sucked through and the silencer unit inside supplied to the fourth module. From the silencer unit the outside air can flow into the intake plenum.

The fourth module may according to a preferred embodiment be designed so that the sound attenuation takes place, that the air meanders through side by side arranged and provided with Schalldämmkulissen air ducts is passed through the fourth module. In this Case is the access to each of these meandering juxtaposed air ducts to the installation space of the Outside air fan designed open and is so for Brushes, vacuum cleaner hoses with attachment nozzles or high-pressure air hoses with attachment nozzles accessible for cleaning. In the case where the outside air fan cartridge or the third module used become meandering next to each other arranged air ducts either through this or through closed a separate closure insert down to the air channel entrance, in the outside air from the outside air fan should be blown first.

Preferably is a slot between the fourth module and the second module provided, whose length is essentially the ribbed Length of the heat exchanger is equivalent, so that regardless of the geometry of the air duct Outside air through the outside air silencer unit via the entire finned length of the heat exchanger essentially constant discharge velocity of the outside air results.

Preferably is the device-longitudinal opening of the intake plenum much higher than the device bottom arranged so that the muffler unit with a designed significantly lower height or depth can be. This has particular advantages when the device installation space only partially with a depth can be executed, the maximum installation depth of the device in the area of the room air opening equivalent. The silencer unit can be thus integrate well into the floor of a room.

Preferably is the outside air fan with the silencer unit connected to outside air from the outside air fan is sucked into the muffler unit, wherein the muffler unit with the intake plenum formed above the heat exchanger is in flow communication such that the outside air from the room air or recirculation fan in the intake plenum and is sucked by this through the heat exchanger. Especially is the outside air on the one hand with low pressure of the Outside air fan promoted in the intake plenum and at the same time from there from the room air or circulating air fan sucked together with the circulating air through the heat exchanger. The outside air thus combines in the intake plenum with the room air or circulating air.

In order to guide the recirculation air flow as possible over the entire length and evenly through the heat exchanger of the room air or recirculation fan is designed according to a preferred embodiment as a cross-flow fan. This means that the cross-flow fan unit and the heat exchanger have approximately the same length. Consequently, the first and second modules are formed with the same width, these modules or the cross-flow fan and the heat exchanger un can be installed or removed depending on each other through the room air opening and / or the supply air opening.

If the heat exchanger in the second module opposite the horizontal is arranged inclined so that the first Module facing side of the heat exchanger relative to his is lifted not only a particularly space-saving design but also a very cheap Air flow within the ventilation system allows. So it is preferred if the room air opening for reasons The space savings as narrow as possible or made narrow can be what caused by the inclination and partially hidden arrangement the heat exchanger is reached. By the invention and independent of the previously described features tilt the heat exchanger of the facade ventilation unit in the direction of the outside air supply arises between the room air opening and the convector surface of the heat exchanger in an approximately cross-section triangular suction plenum.

Independently one of the above features is the formation of a suction plenum in a façade ventilation system an essential aspect the invention. Through this intake plenum is a through the panel or the grid cover the room air opening or through one opposite the convector surface Reducing the room air opening a cover or masking the Convector surface avoided. Corresponding capacity or performance reductions can be so excluded. Due to the inclination of the heat exchanger in the direction of the outside air supply it is also possible that the outside air fan Blow out the absorbed outside air into the intake plenum can, without this being an increase in the height or depth of the device is required.

To In one embodiment of the invention, the room air or recirculation fan and the supply air opening in the first Module arranged such that the tempered air flow substantially is discharged horizontally from the first module. In other words There is no deflection of the air flow in the cross-flow fan. Alternatively, there is a deflection in the cross-flow fan possible by 90 °, whereby the tempered air flow is discharged substantially vertically from the first module.

at a modular ventilation system according to the invention it is particularly preferred if the room air or recirculation fan and / or the outside air fan at least one control or control device is assigned such that the amount of in the tempered air flow contained outside air at least essentially about a change in the speed the room air or circulating air fan and / or the outside air fan is defined adjustable. A complex and with flow losses Connected control via flaps can be done this way be avoided. The ventilation system according to the invention works therefore also very quiet.

Around the components of the ventilation system for maintenance to be able to achieve good, according to the invention are the Size of the supply air opening or the room air opening and the size of the room air or recirculation fan or the heat exchanger matched, so that the room air or circulating air fan through the supply air opening and the heat exchanger through the room air opening can be removed from the respective modules.

By the modular structure of the ventilation system according to the invention This is suitable both for original equipment in rooms of a building as well as for retrofitting into existing ones Buildings. Here you can in different rooms one different number of ventilation systems provided be.

Around to increase the thermal power, in a building several of the invention be provided modular ventilation systems in a room being at least one of these modular ventilation systems equipped with a third module with outside air fan is while at least another of the modular ventilation systems not with such a third module with outside air fan is provided. It is preferred if the first module with the room air or recirculation fan and the second module with the Heat exchangers in two different widths and thus two different performance variants is kept. The two smaller ones Modules are always integrated into the ventilation system, if in addition to these a third module with outside air fan while the modules are in communication with the room air or recirculation fan and the heat exchanger in wesentli chen over can extend the entire width of the device, if no outside air fan is provided.

in the The invention will be described below with reference to exemplary embodiments and explained in more detail with reference to the drawing. In this case, all described and / or illustrated Features alone or in any combination the object the invention regardless of their summary in the Claims or their remittances.

It demonstrate:

1 a plan view of a Lüftungssys according to a first embodiment of the invention,

2a a top view of a ventilation system according to a second embodiment of the invention,

2 B a plan view of a ventilation system according to a third embodiment of the invention,

3 in sectional view of an inventive ventilation system and

4 in sectional view a ventilation system according to another embodiment of the invention.

This in 1 illustrated modular ventilation system 1 has a first module 2 in which a cross-flow fan 3 is provided, which serves as a room air or recirculation fan. In a second module 4 , which is next to the first module 2 is arranged is a convector (heat exchanger) 5 intended. Like from the 3 and 4 is apparent, is the convector 5 ge compared to the horizontal inclined in the second module 4 arranged so that the first module two facing side higher than the first module 2 opposite side of the convector 5 is arranged.

The convector 5 is formed as a heat exchanger through which a heating or cooling medium for controlling a temperature also by the convector 5 directed air flow is passed. In the plan view of the 1 and 2 is right next to the first and the second module 2 . 4 a convector connection chamber 6 provided, which the connections for the heating or cooling medium to the convector 5 receives.

The embodiments according to the 1 and 2a respectively. 2 B differ in that in the embodiment according to the 2a and 2 B the first module 2 and the second module 4 apart from the convection chamber 6 essentially over the entire width of the ventilation system 1 extend. In contrast, the first module 2 and the second module 4 and thus also the components provided therein, namely the cross-flow fan 3 and the convector 5 in the embodiment according to 1 shortened trained. So is in 1 to the left of the first module 2 and the second module 4 is a third module 7 arranged in which a not shown outside air fan 8th is provided for sucking in outside air.

The ventilation system 1 can be provided integrated in the vicinity of an outer wall or in the facade of a building, wherein the cross-flow fan 3 in the first module 2 turned to the outside of the building. Outside air from the outside air fan can be seen through an opening in the façade 8th be sucked.

A fourth module 9 is adjacent to the second module 4 and possibly adjacent to the third module 7 on the outside of the building outside facing away from the ventilation system 1 intended. The fourth module 9 forms an outside air silencer unit and has, as from the view of 3 and 4 shows, compared to the other modules reduced height. This makes it possible to use the fourth module 9 under a floor of a room.

The over the outside air fan 8th sucked outside air is the side of the convector 5 past the outside air muffler unit of the fourth module 9 blown. This can be done with a very slight overpressure. As in the 3 and 4 is shown is between the fourth module 9 and the second module 4 a relatively wide slot 10 provided, whose length of the finned length of the convector 5 equivalent. The outside air volume flow can thus from the outside air silencer unit almost without pressure in the space above the convector 5 in the second module 4 stream.

The slot 10 is always dimensioned so wide that one over the entire finned length of the convector 5 In approximately equal blowout speed of the outside air results regardless of the geometry of the air flow of the outside air through the outside air silencer unit to the blowout slot. This will cause the from the outside air fan 8th to be overcome resistance in the field of outside air significantly reduced. This leads to a reduction of both the noise emissions and the energy consumption.

The in installation position vertically upper side of the second module 4 has a room air opening 11 for sucking in air from the room. Between the room air opening and the inclined convector surface becomes a Ansaugplenum 12 formed, in which flows both the intake room air and the outside air. The air resistance of the encased or barred or compared to the convector surface reduced room air opening 11 is measured almost exclusively according to the ratio of the room air opening area to the convector inflow and is correspondingly low. Through the intake plenum 12 a capacity or performance reduction due to a lining or a grid cover of the room air opening or due to a reduction of the room air opening over the convector surface is avoided.

In the embodiment according to 2 B the sound attenuation takes place in the fourth module 9 in that the air meandering through juxtaposed and with Schalldämmkulissen 15 provided air ducts through the fourth module 9 is guided through.

In the embodiment according to 3 is the air flow, which from the intake plenum 12 through the convector 5 from the crossflow fan 3 is sucked, in installation position vertically upwards through a supply air opening 13 delivered into the room. It is above the cross-flow fan 3 a blowing plenum 14 intended. The blowing plenum 14 avoids turbulence by the air resistance of the panel or the grating of the supply air opening 13 , The air resistance of the opposite of the exhaust opening of the cross-flow fan 3 enlarged Ausblasplenums 14 and the supply air opening 13 is determined by the ratio of the supply air opening area of the discharge plenum to the area of the discharge opening of the module 2 , The air resistance is correspondingly low.

In contrast to the embodiment according to 3 in which the air flow in the cross-flow fan 3 is deflected upward by 90 °, is in 4 an embodiment shown in which the air flow in the cross-flow fan 3 essentially not diverted. The blowing plenum 14 and the supply air opening 13 are therefore located in a side surface of the first module 2 ,

If the directional blowing out of the air stream as in the embodiment of 3 takes place in the direction from which the room air is sucked in, the room air opening 11 and the supply air opening 13 be structurally combined into a compact clad or barred opening. A recirculation of the supply air flow in the room air intake is thereby either by an aerodynamically optimized foreclosure between the Ausblasplenum 14 and the intake plenum 12 and / or by a divider between the Zuluftöffnung 13 and the room air opening 11 largely avoided.

The room air opening 11 and the supply air opening 13 are dimensioned such that the cross-flow fan 3 and the convector 5 as well as the outside air fan 8th can be easily reached or replaced by these openings for maintenance purposes. Due to the modular design of the ventilation system 1 It is also possible while retaining the remaining components of the first module 2 and the second module 4 to 1 through a first module 2 and a second module 4 to 2 replace if a third module with outside air fan 8th is not needed or vice versa.

This leads to an increased heating or cooling capacity or allows a reduction in the recirculation air volume flow, which energy saving and comfort improvement has the consequence if no or less outside air must be supplied for hygienic reasons and thus to the third module 7 is waived.

1

modular ventilation system

2

first module

3

room air or recirculation fan (cross-flow fan)

4

second module

5

convector (Heat exchanger)

6

Konvektoranschlusskammer

7

third module

8th

Outside air fan

9

fourth Module (outside air silencer unit)

10

slot

11

Room air opening

12

Intake plenum

13

air intake opening

14

Delivery plenum

15

meandering Schalldämmkulisse

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 19548599 C2 [0004]
• - DE 10253264 B4 [0005]

Claims (16)

Modular ventilation system for ventilating and / or tempering rooms of a building with a first module to be arranged near the façade within the room and / or its walls or ceilings ( 2 ), in which a room air or recirculation fan ( 3 ) is provided for supplying a tempered air flow into the room, a second module ( 4 ), in which a heat exchanger ( 5 ) is provided, which is flowed through by the air flow to be tempered and a heating or cooling medium, wherein the heat exchanger ( 5 ) between one in the second module ( 4 ) provided room air opening ( 11 ) for sucking air from the room and one in the first module ( 2 ) supply air opening ( 13 ) is arranged for discharging the air flow in the room, and wherein the room air or recirculation fan ( 3 ) relative to the heat exchanger ( 5 ) is arranged such that the air flow from a Ansaugplenum ( 12 ) within the second module ( 4 ) above the heat exchanger ( 5 ) is provided by the heat exchanger ( 5 ) and then through the room air or circulating air fan ( 3 ) and on in the first module ( 2 ) provided exhaust plenum ( 14 ) and / or the supply air opening ( 13 ) is delivered. Modular ventilation system according to claim 1, characterized in that in addition a third, in particular divided into several cassettes module ( 7 ) is provided, which laterally next to the first module ( 2 ) and the second module ( 4 ) is arranged and in which an outside air fan ( 8th ) is provided for sucking in outside air through the facade of the building. Modular ventilation system according to one of claims 1 or 2, characterized in that in addition a fourth, in particular in the floor of the space to be ventilated module ( 9 ), which is designed as a silencer unit, in particular as an outside air silencer unit, and on which the first module ( 2 ) facing away from the second module ( 4 ) is arranged. Modular ventilation system according to claims 2 and 3, characterized in that the outside air fan ( 8th ) is connected to the muffler unit such that outside air from the outside air fan ( 8th ) is conveyed into the muffler unit, wherein the muffler unit with the above the heat exchanger ( 5 ) formed intake plenum ( 12 ) is in flow communication in such a way that outside air is at the same time at low pressure from the outside air fan ( 8th ) into the intake plenum ( 12 ) and simultaneously from there by the room air or circulating air fan ( 3 ) together with the circulating air through the heat exchanger ( 5 ) is sucked. Modular ventilation system according to claims 2 to 4, characterized in that the sound attenuation in the fourth module ( 9 ) takes place in that the air meandering through juxtaposed and with Schalldämmkulissen ( 15 ) provided air ducts through the fourth module ( 9 ) is passed through. Modular ventilation system according to one of the preceding claims, characterized in that the room air or recirculation fan ( 3 ) is designed as a cross-flow fan. Modular ventilation system according to one of the preceding claims, characterized in that the heat exchanger ( 5 ) in the second module ( 4 ) is inclined relative to the horizontal such that the first module ( 2 ) facing side of the heat exchanger ( 5 ) relative to its first module ( 2 ) is lifted away. Modular ventilation system according to one of the preceding claims, characterized in that the room air or recirculation fan ( 3 ) and the supply air opening ( 13 ) in the first module ( 2 ) are arranged such that the tempered air flow substantially horizontally from the first module ( 2 ) is delivered. Modular ventilation system according to one of claims 1 to 7, characterized in that the room air or circulating air fan ( 3 ) and the supply air opening ( 13 ) in the first module ( 2 ) are arranged such that the tempered air flow substantially vertically from the first module ( 2 ) is delivered. Modular ventilation system according to one of the preceding claims, characterized in that the room air or recirculation fan ( 3 ) and / or the outside air fan ( 8th ) at least one control or regulating device is assigned such that the amount of outside air contained in the tempered air flow at least substantially via a change in the rotational speed of the room air or circulating air fan ( 3 ) and / or the outside air fan ( 8th ) is defined adjustable. Modular ventilation system according to one of the preceding claims, characterized in that the size of the supply air opening ( 13 ) so on the size of the room air or circulating air fan ( 3 ) that the room air or circulating air fan ( 3 ) through the supply air opening ( 13 ) from the first module ( 2 ) is removable. Modular ventilation system according to one of the preceding claims, characterized in that the size of the room air opening ( 11 ) in such a way to the size of the heat exchanger ( 5 ) that the heat exchanger ( 5 ) through the room air opening ( 11 ) from the second module ( 4 ) is removable. Modular ventilation system according to one of the preceding claims, characterized in that the first and the second module ( 2 . 4 ) are each available in two different widths and / or two different performance variants, the shorter or less powerful modules ( 2 . 4 ) combined together with a third module ( 7 ) with outside air fan ( 8th ) against the longer or more powerful modules ( 2 . 4 ) without a third module ( 7 ) with outside air fan ( 8th ) are interchangeable. Modular ventilation system according to one of claims 3 to 13, characterized in that between the fourth module ( 9 ) and the second module ( 4 ) a slot ( 10 ) is provided, which is designed such that, regardless of the geometry of the air flow of the outside air through the fourth module ( 9 ) one over the entire finned length of the heat exchanger ( 5 ) results in substantially constant discharge velocity of the outside air. Building with at least one room in which Wall and / or floor at least one modular ventilation system is provided according to one of the preceding claims. A building according to claim 15, characterized in that a plurality of modular ventilation systems are provided in the at least one space, wherein at least one of the modular ventilation systems with a third module ( 7 ) with outside air fan ( 8th ) and at least one of the modular ventilation systems is not equipped with a third module ( 7 ) with outside air fan ( 8th ) is provided.