DE102014007735A1 - ventilation - Google Patents

Abstract

Decentralized ventilation system for living spaces consisting of supply air and exhaust air modules, whereby the supply air module and exhaust air modules in a residential unit are usually not installed in the same room. The supply air and exhaust air modules have connections for air supply and air outlet, in the air flow of which there is preferably an air filter and a fan. The heat exchangers used are condenser-evaporator elements which are connected to a flow valve and a compressor via a refrigerant line to form a refrigerant circuit and the compressor being controlled as a function of temperature.

Description

Technical area

The invention relates to a decentralized ventilation system for living spaces consisting of at least one supply air module ( 1 ) ( 11 ) and at least one exhaust air module ( 2 ) ( 12 ), wherein the supply air module (s) and the exhaust module (s) in a housing unit need not be installed in the same room, but are preferably mounted in different rooms or at different locations of a room. Each supply air and exhaust air module has connections for air supply ( 15 ) ( 17 ) and air outlet ( 16 ) ( 18 ), preferably an air filter ( 19 ) and a fan ( 20 ) as well as a heat exchanger a condenser-evaporator element ( 9 ) ( 10 ) and an associated flow valve ( 21 ).

Through the air outlet of the supply air module ( 16 ) the air flows directly into the living spaces and through the air supply of the exhaust air module ( 17 ), the air flows directly from the living spaces. The air outlet of the supply air module and the air supply of the exhaust air module are therefore not connected via ventilation ducts or ventilation pipes.

The current state of the art consists of ventilation systems, which have the aim to dissipate contaminated indoor air and to suck in fresh outside air. These systems are available with or without a heat exchanger, the known heat exchangers used plate, tube bundle, lamellar, spiral or building-like heat exchangers.

The ventilation system with heat exchanger described here as a novelty consisting of a condenser-evaporator element removes energy from the exhaust air by cooling down and condensing out. This recovered energy is fed directly to the supply air. With the condenser-evaporator element as a heat exchanger of the exhaust air is extracted more energy than with the previously known heat exchangers.

State of the art:

In the field of home ventilation central and decentralized ventilation systems are known. Central systems are characterized by the fact that ventilation ducts must be led from the living spaces to the plant. They are therefore difficult to retrofit. All of these systems have the task of meeting the fresh air requirements of rooms by supplying fresh air and thus preferably reducing CO2, pollutants and fumes or bad odors.

Decentralized systems are preferably used to retrofit existing rooms in which special ventilation problems are best, such as bathrooms, kitchens, toilets and rooms with high humidity, thermal bridges and air pollution.

Decentralized ventilation systems today contain either a heat exchanger or a heat buffer. The devices with heat buffer preferably work with paired devices in different rooms or with a double device in a room.

Decentralized ventilation systems with heat exchangers are known for their equipment with a plate, tube bundle, lamellar, spiral or construction-like heat exchanger. As an example, the ventilation systems with heat exchanger in EP 1570220 B1 called, which reaches the energy recovery with heat exchange plates and the ventilation device with heat exchanger in DE 20221698 U1 , Preferably, such devices are equipped with air filters, fans and controls with sensors. Likewise, controls are provided. These systems recover part of the heat available from the exhaust air. The evaporation energy of the water contained in the air is practically not recovered.

As an example of the state of the art in the heat recovery of decentralized ventilation systems, the products of the following companies are mentioned:
Helios Ventilatoren AG, Villingen Schwenningen, advertises its KWL EC 60 built-in wall mounted unit equipped with an aluminum plate heat exchanger with a heat recovery rate of 70%. The company Maico Elektroapparate-Fabrik GmbH, Villingen-Schwenningen, advertises with its decentralized ventilation unit WRG 35 with aluminum heat exchanger with a heat recovery of 70%. The company Höhbauer GmbH, Luhe, advertises its decentralized ventilation system in the roller shutter box AirPur module, which is equipped with elaborate sophisticated air flow paths and air flow channels (see DE20221698 ), with a heat recovery rate of nominal 70%, maximum 80%.

Mention should also be the device for ventilation in DE 4309114 A1 , a decentralized ventilation system of older generation, which is equipped without heat exchanger or heat buffer and the warm air without heat recovery in the environment.

Likewise to the state of the art include the air conditioners DE102004049621 and DE19500527 , the air conditioning off DE4202204 , the ventilation system DE19813157 , the fresh air heating system off DE19960390 as well as the ventilation apparatus GB2095395 , All of these inventions are devices in a housing, so Compact units in which a heat pump is integrated and which do not work in pairs.

The invention described here, however, consists in its simplest basic version of a supply air module ( 11 ) and an exhaust air module ( 12 ), wherein in the exhaust air module, an evaporator element ( 14 ) in order to extract heat from the air and to condense the water out and in the supply air module ( 11 ) a capacitor element ( 13 ) is integrated to control the air, whereby the supply air module ( 11 ) and the exhaust air module ( 12 ) are mounted in different rooms or in different places of a room. The capacitor element ( 13 ) and the evaporator element ( 14 ) and at least one flow valve ( 21 ) and a compressor ( 3 ) are via a refrigerant line ( 6 ) is connected to a refrigerant circuit whereby the compressor (s) ( 3 ) and / or the flow valve (s) ( 21 ) are temperature-dependent controlled.

Object of the invention

The decentralized ventilation system according to the invention has the task to cover the fresh air demand of rooms of a dwelling, a house or other buildings by supplying fresh air and thereby achieve a very high efficiency in terms of heat recovery of the existing heat of the exhaust air.

This is inventively achieved in that the ventilation system from at least one supply air module ( 1 ) ( 11 ) and at least one exhaust air module ( 2 ) ( 12 ), which are each equipped with at least one heat exchanger consisting of a condenser-evaporator element ( 9 ) ( 10 ) or a capacitor element ( 13 ) or an evaporator element ( 14 ) consists.

By evaporating a refrigerant in the condenser-evaporator element ( 10 ) or evaporator element ( 14 ) of the exhaust air module, the exhaust air is deprived of energy. The withdrawal of energy is independent of the outside temperature; Depending on the energy requirement, the exhaust air is cooled below the temperature of the outside air. If the outside temperature is 10 ° Celsius, for example, the exhaust air can be cooled to 2 ° Celsius. This can extract more energy from the exhaust air than the supply air would have to be supplied in order to achieve the same temperature.

The water contained in the air is condensed out to a large extent; For example, the relative humidity at 2 ° Celsius is lower than at 22 ° Celsius. During condensation, the heat of vaporization of the water contained in the air to the heat exchanger, designed as a condenser-evaporator element ( 10 ) or evaporator element ( 14 ) and is reused by being supplied to the supply air. The exhaust air is much more energy withdrawn than in decentralized ventilation systems according to the prior art.

According to the invention, the energy is optionally stored temporarily. This is stored in heat storage ( 25 ) existing heating systems and / or in another existing or optionally attached to the decentralized ventilation system heat storage ( 25 ) performed.

The heat exchanger consisting of the condenser-evaporator element ( 9 ) ( 10 ) of both the supply air modules ( 1 ) as well as the exhaust air modules ( 2 ) are either operated as evaporator or condenser, depending on the temperature, humidification or dehumidification.

Presentation of the invention

A simple embodiment of the invention is disclosed in 2 shown. The supply air modules ( 1 ) as well as the exhaust air module ( 2 ) are arbitrarily and spatially separated, for example, placed in an apartment. This can be either in a wall hole, in a window insert, in the roller shutter box or at any other suitable place; It is also advantageous to integrate the exhaust air module into existing exhaust air systems, which are already present in the kitchen or the toilets.

The supply air ( 1 ) and the exhaust air module ( 2 ) preferably contain the same components, namely the heat exchanger, designed as a condenser-evaporator element ( 9 ) ( 10 ), a flow valve ( 21 ), Connections for refrigerant pipes ( 6 ), a temperature sensor ( 22 ), as well as optionally an air filter ( 19 ), a fan ( 20 ) and a recirculating air flap ( 23 ). In the exhaust air module ( 2 ), the condenser-evaporator element ( 10 ) used as an evaporator to extract heat from the air and to condense the water out. In the supply air module ( 1 ), the condenser-evaporator element ( 9 ) used as a condenser to temper the air.

The supply air module ( 1 ) and the exhaust air module ( 2 ) are connected via the connections for refrigerant pipes ( 6 ) with a compressor ( 3 ) connected. The control ( 4 ) is equipped with control and sensor cables ( 7 ) equipped with the supply air ( 1 ) and exhaust air modules ( 2 ) and the compressor ( 3 ) are connected.

By evaporating the refrigerant in the condenser-evaporator element used as evaporator ( 19 ) of the exhaust air module ( 2 ) the exhaust air is deprived of energy. The refrigerant is in the compressor ( 3 ) condensed and condensed controlled in the condenser-evaporator element used as capacitor ( 9 ) of the supply air module ( 1 ). When condensing, the energy is transferred to the condenser Evaporator element delivered and the supply air supplied. By evaporating the refrigerant in the condenser-evaporator element used as evaporator ( 19 ) of the exhaust air module ( 2 ) the exhaust air is deprived of energy. If the required heating capacity can not be provided with the air volume to be exchanged, the supply air module ( 1 ) and / or the exhaust air module ( 2 ) with the recirculation flap ( 23 ) switched to recirculation. In order to reach or maintain the desired temperature, the circulating air proportion and the fresh air proportion are adjusted according to the needs of the controller ( 3 ) varies. Optionally, the fresh air portion of the controller ( 3 ) using sensors that measure the air quality, such as CO2 sensors, preferably controlled with a higher-level control or set in the control to a specific value. The efficiency of the ventilation system is controlled by 3 ) Optimized, preferably by the compressor and fan power as well as the recirculation proportion operated efficiency optimized.

The control ( 4 ) controls the amount of the compressor ( 3 ) compressed refrigerant and the amount of refrigerant during evaporation and condensation depending on the actual and set values of the room temperature and the outside temperature. The compressor is, for example, a compressor with frequency control or another suitable power controller. Due to the dynamic control of the compressor performance, the ventilation system is operated very efficiently and energy-wasting bypass arrangements are dispensed with.

The amount of refrigerant during evaporation and condensation is controlled by the controller ( 4 ) by means of the flow valves ( 21 ) controlled. In order to achieve maximum efficiency of heat recovery, preference is given to using turbo-compressors or compressors which are steplessly controlled, such as, for example, those whose piston stroke is controlled by means of a swashplate or, for example, frequency-controlled compressors.

The inventive decentralized ventilation system for living spaces not only leads rooms fresh air and recovers as much heat from the exhaust air back, it is also used as air conditioning. For this purpose, the condenser-evaporator element ( 10 ) in the exhaust air module ( 2 ) is used as a condenser to give off warm air and the condenser-evaporator element ( 9 ) in the supply air module ( 1 ) is used as an evaporator to cool the air.

The refrigerant is compressed in the compressor and stored in the condenser-evaporator element ( 10 ) of the exhaust air module ( 2 ) condenses. During condensation, the energy in the condenser-evaporator element of the exhaust air is transmitted. By evaporating refrigerant, in the condenser-evaporator element used as evaporator ( 9 ) of the supply air module ( 1 ), the supply air is deprived of energy. If the required cooling capacity can not be provided with the air volume to be exchanged, the supply air module ( 1 ) and / or the exhaust air module ( 2 ) with the recirculation flap ( 23 ) switched to recirculation. In order to reach or maintain the desired temperature, the circulating air proportion and the fresh air proportion are adjusted according to the needs of the controller ( 3 ) varies. Optionally, the fresh air portion of the controller ( 3 ) using sensors that measure the air quality, such as CO2 sensors, preferably controlled with a higher-level control or set in the control to a specific value. The efficiency of the ventilation system is controlled by 3 ) Optimized, preferably by the compressor and fan power as well as the recirculation proportion operated efficiency optimized.

The control ( 4 ) controls the amount of the compressor ( 3 ) compressed refrigerant such that only as much refrigerant is compressed as the ventilation system when condensing and evaporating just needed. This depends on the actual and setpoint values of the room temperature and the outside temperature. The amount of refrigerant in condensing and evaporating is controlled by the controller ( 4 ) by means of the flow valves ( 21 ) controlled.

The condenser-evaporator element ( 9 ) ( 10 ) of the supply air modules ( 1 ) and exhaust air modules ( 2 ) is operated either as a condenser or as an evaporator. This reversal is achieved by means of the flow valves ( 21 ), which are designed to function as expansion valves when the condenser-evaporator element ( 9 ) ( 10 ) acts as an evaporator, and as actual flow valves, when the condenser-evaporator element acts as a condenser.

The switching between heating and cooling operation is preferably carried out by reversing the conveying direction of bidirectional compressors, ie compressors that can be operated in both directions. Optionally, compressors are used which do not work bidirectionally and in the use of which the conveying direction through the valves is reversed. In this case, if the condenser-evaporator element is used as an evaporator, the upstream valve is used as an expansion valve; if the condenser-evaporator element is used as a condenser, the upstream valve is used as the actual flow valve.

The simplest version of the present invention has the task of supplying rooms fresh air and recover as much heat from the exhaust air back. This is the simplest Version from a supply air module ( 11 ) and an exhaust air module ( 12 ), wherein the supply air module (e) with at least one capacitor element ( 13 ) and the exhaust module (s) with at least one evaporator element ( 14 ), a flow valve ( 21 ) and a compressor ( 3 ), wherein the capacitor element ( 13 ), the evaporator element ( 14 ), the flow valve ( 21 ) and the compressor ( 3 ) via a refrigerant line ( 6 ) are connected to a refrigerant circuit and the compressor ( 3 ) is temperature-dependent controlled; the flow valve ( 21 ) is arbitrarily arranged in the refrigerant circuit, so it can also in the supply air module ( 11 ) or exhaust air module ( 12 ) be integrated. It is possible to install several supply air modules ( 11 ) and exhaust air modules ( 12 ) for one or more rooms.

The energy which is extracted from the exhaust air is usually supplied to the supply air; excess energy is cached in a further embodiment, for example in heat storage ( 25 ) existing heating systems and / or in heat storage ( 25 ), which are attached to the decentralized ventilation system and / or combined with the invention heat pumps ( 25 ) are connected.

Furthermore, the decentralized ventilation system is optionally equipped with recirculating air flaps ( 23 ) that the supply air is mixed with room air in such a way that a minimum of outside air is supplied and thus a minimum of energy is required to meet the specified or required fresh air requirement by supplying fresh air.

Especially in cooling mode, only as much outside air is supplied to the rooms as is necessary. This can be controlled via a CO2 sensor or a minimum set air volume. In the supply air module ( 1 ) the recirculation damper ( 23 ) so that only a certain set amount of air comes from the outside. There is so much air through the working as an evaporator condenser-evaporator element ( 9 ), as necessary, to cool the rooms to the desired temperature.

The heat thus extracted from the rooms is optionally, depending on the version of the with recirculation damper ( 23 ) exhaust air modules or additional heat exchanger such as with refrigerant to water or refrigerant discharged to outside air.

In another embodiment, one or more exhaust air modules ( 2 ) of the decentralized ventilation system with a further condenser-evaporator element ( 10 ) equipped such that the respective condenser-evaporator element ( 10 ) of the exhaust air module ( 2 ) is preceded by a cooling module, which pre-cools the air. This upstream cooling module is in the air flow of the exhaust air module ( 2 ) and preferably consists of a condenser-evaporator element ( 10 ), which is integrated in the refrigerant circuit. The pre-cooling of the air is done with the upstream cooling module as close as possible to 0 ° C so that the air is almost completely condensed without icing. This prevents, for example, electric defrost, which consumes a great deal of energy, which occurs under certain environmental conditions and in which the air of the exhaust air module ices up.

The ventilation system is designed in a further embodiment such that the air supply ( 15 ) of the supply air module ( 1 ) ( 11 ) and / or the air outlet ( 18 ) of the exhaust air module ( 2 ) ( 12 ) are equipped with pipelines such as ventilation ducts or ventilation pipes such that through the pipelines the air supply ( 15 ) of the supply air module ( 1 ) ( 11 ) the fresh air and through the pipes of the air outlet ( 18 ) of the exhaust air module ( 2 ) ( 12 ) the exhaust air flows, with the task of sucking the fresh air at a location other than at which the supply air module ( 1 ) ( 11 ) is installed in the building and the exhaust air is delivered at a different location than at the, where the exhaust air module ( 2 ) ( 12 ) is installed in the building.

The basic version of the ventilation system controls the evaporation and condensation of the refrigerant and the compressor depending on the temperature. Another embodiment includes a controller ( 4 ), which is determined by other sensors, such as humidity, CO2 or other gas sensors. The ventilation system is optionally expanded in such a way that the air is also filtered, humidified or dehumidified, ionized or mixed with room air depending on the sensor values mentioned above, in addition to tempering.

The control ( 4 ) of the basic version of the ventilation system is equipped with one or more inputs and one or more outputs for at least one compressor ( 3 ) and / or at least one flow valve ( 21 ) and / or at least one temperature sensor ( 22 ) and / or for at least one input unit and equipped with at least one communication unit; The interfaces and inputs / outputs are wired and / or wireless. An input unit is a unit via which inputs for the controller ( 4 ) and in which data and values can be read. A communication unit is understood to be an electronic unit which communicates with other devices via wire or wireless, for example, exchanges data and via which the controller ( 4 ), ie via which inputs for the controller ( 4 ) and in which data and values are read.

The control ( 4 ) is optionally configured to consist of inputs and outputs and / or one or more input units and one or more communication units designed to communicate with external devices. The connection of the sensors, such as temperature ( 22 ), Moisture, CO2 and / or other gas sensors, the compressor ( 3 ), Flow valves ( 21 ) or recirculating air flaps ( 23 ) and heat pumps ( 25 ), central energy storage ( 25 ) and heating systems to the controller is wired and / or wireless.

The control ( 4 ) controls the elements of the ventilation system like compressors ( 3 ), Flow valves ( 21 ) or recirculating air flaps ( 23 ) and heat pumps ( 25 ), central energy storage ( 25 ) And heating systems such that the room air depending on the aforementioned sensors, filtered, humidified, dehumidified, ionized, mixed with room air and / or tempered, that is, cooled or heated.

Another embodiment binds unused heat sources ( 26 ) of, for example, low temperature, such as waste water, exhaust air or technical equipment via another "evaporator element" in the refrigerant circuit so that this heat is used.

Advantages of the invention

The present invention describes a decentralized ventilation system for living spaces consisting of supply air modules ( 1 ) ( 11 ) and exhaust air modules ( 2 ) ( 12 ). The basic version of a supply air module ( 1 ) ( 11 ) and an exhaust air module ( 2 ) ( 12 ) is installed either in a room or in different rooms of a residential unit and is limited to the temperature control of the supply air and the heat recovery from the exhaust air. This device is easy to manufacture and can easily be installed in a residential unit. Also the refrigerant pipes ( 6 ) and control and sensor lines ( 7 ) take up little space and can easily be laid.

Since the exhaust air is cooled down further than in the case of heat exchanger ventilation, not only does the energy of the specific heat of the air recover, but so does the heat of vaporization of the moisture contained in the air. Depending on the operating mode, it makes sense to cool the exhaust air more deeply than is usual with previous heat exchanger ventilation systems and even below the temperature of the outside air; this will help to recover more energy.

Another operating mode is to use the decentralized ventilation system for heating support and thus to reduce heating energy. Especially in transitional periods is dispensed with a conventional heating. The controller takes over ( 4 ) of the decentralized ventilation system controls the heating system or switches the heating system or the heating system on or off.

An energy-wasting bypass solution, ie a discharge of warm air into the free without the benefit of heat energy is dispensed with. Another advantage is that the compact exhaust air modules are preferably integrated into already existing exhaust air devices which are already present, for example, in the toilet, bathroom and kitchen.

Through the use of the inventive ventilation system, the existing heating system is switched off in the transitional period and the ventilation system takes over the task of home temperature control.

Description of the embodiments:

Enumeration of the figures

The invention will be explained with reference to embodiments which are illustrated in the drawings.

LIST OF REFERENCE NUMBERS

1

Supply air module with at least one condenser-evaporator element

2

Exhaust air module with at least one condenser-evaporator element

3

compressor

4

control

5

Wall of the living spaces

6

Refrigerant line

7

Control and sensor cables

8th

possible air flow

9

Condenser-evaporator element of the supply air module

10

Condenser-evaporator element of the exhaust air module

11

Supply air module with at least one capacitor element

12

Exhaust air module with at least one evaporator element

13

Capacitor element

14

Evaporator element

15

Air supply of the supply air module

16

Air outlet of the supply air module

17

Air supply of the exhaust air module

18

Air outlet of the exhaust air module

19

air filter

20

fan

21

Flow valve

22

temperature sensor

23

recirculation damper

24

Room air supply for circulating air function

25

Example of a heat storage (or energy storage) or a heat pump

 26

Example of a heat source, such as waste water, exhaust air or technical system

27

humidifying

 28

Ionisierungsvorichtung

1 shows an example of an apartment with living rooms equipped with two Zuluft modules ( 11 ) and an exhaust air module ( 12 ), each supply air module having a capacitor element ( 13 ) and the exhaust air module with an evaporator element ( 14 ) are equipped. The capacitor elements ( 13 ), the evaporator element ( 14 ), the flow valve ( 21 ) and the compressor ( 3 ) are via a refrigerant line ( 6 ) connected to a refrigerant circuit. The compressor ( 3 ) is temperature-dependent via the controller ( 4 ) controlled. The flow valve ( 21 ) are in the supply air modules ( 11 ) and in the exhaust air module ( 12 ), but can be arranged arbitrarily in the refrigerant circuit.

2 shows an example of an apartment with living rooms equipped with a Zuluft- ( 1 ) and an exhaust air module ( 2 ), which preferably contain the same components, namely the heat exchanger, formed as a condenser-evaporator element ( 9 ) ( 10 ), a flow valve ( 21 ), Connections for refrigerant pipes ( 6 ), a temperature sensor ( 22 ), as well as optionally an air filter ( 19 ), a fan ( 20 ) and a recirculating air flap ( 23 ). In the exhaust air module ( 2 ), the condenser-evaporator element ( 10 ) used as an evaporator and in the supply air module ( 1 ), the condenser-evaporator element ( 9 ) used as a capacitor. The supply air module ( 1 ) and the exhaust air module ( 2 ) are connected via the connections for refrigerant pipes ( 6 ) with the compressor ( 3 ) connected to a refrigerant circuit. The control ( 4 ) is controlled by control and sensor lines ( 7 ) with the supply air ( 1 ) and exhaust air modules ( 2 ) and the compressor ( 3 ) connected.

3 shows a supply air module ( 1 ), which with a condenser-evaporator element ( 9 ) Is provided.

4 shows an exhaust air module ( 2 ), which with two condenser-evaporator elements ( 10 ), for example, to pre-cool the air and thus prevent freezing of the air under certain environmental conditions.

5 shows an apartment with living spaces equipped with the inventive ventilation system, in which in the refrigerant circuit a heat storage ( 25 ) or energy storage and a heat source ( 26 ), such as waste water, exhaust air or a technical system are integrated. The supply air modules ( 1 ) are additionally equipped with a moistening device ( 27 ) and an ionization device ( 28 ) fitted. In the 5 shown housing with living spaces according to the invention instead of with the supply air modules ( 1 ) with at least one condenser-evaporator element ( 9 ) and the exhaust air module ( 2 ) with at least one condenser-evaporator element ( 10 ) also by supply air modules ( 11 ) with at least one capacitor element ( 13 ) and the exhaust air module ( 12 ) with at least one evaporator element ( 14 ).

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1570220 B1 [0008]
• DE 20221698 U1 [0008]
• DE 20221698 [0009]
• DE 4309114 A1 [0010]
• DE 102004049621 [0011]
• DE 19500527 [0011]
• DE 4202204 [0011]
• DE 19813157 [0011]
• DE 19960390 [0011]
• GB 2095395 [0011]

Claims (13)

Device for room ventilation, preferably domestic ventilation, equipped with at least one supply air module ( 11 ) and at least one exhaust air module ( 12 ), whereby the supply air module ( 11 ) and the exhaust air module ( 12 ) are installed in different rooms or in different places of a room and the supply air module ( 11 ) with at least one air supply ( 15 ) and at least one air outlet ( 16 ) and the exhaust air module ( 12 ) with at least one air supply ( 17 ) and at least one air outlet ( 18 ) and the modules are installed in the room (s) so that the air supply ( 15 ) of the supply air module ( 11 ) is supplied with outside air and through the air outlet ( 16 ) of the supply air module ( 11 ) the air flows directly into the room as well as the air supply ( 17 ) of the exhaust air module ( 12 ) is supplied with air from the room and the air outlet ( 18 ) of the exhaust air module ( 12 ) Discharges air into the outside air, characterized in that the supply air module (s) ( 11 ) with at least one capacitor element ( 13 ) and the exhaust module (s) ( 12 ) with at least one evaporator element ( 14 ) and the device with at least one preferably in the supply air module ( 11 ) and / or exhaust air module ( 12 ) accommodated flow valve ( 21 ), at least one compressor ( 3 ) and a refrigerant line ( 6 ) and the capacitor element (s) ( 13 ), the evaporator element (s) ( 14 ), the flow valve (s) ( 21 ) and the compressor (s) ( 3 ) via a refrigerant line ( 6 ) are connected to a refrigerant circuit whereby the compressor (s) ( 3 ) and / or the flow valve (s) ( 21 ) are temperature-dependent controlled. Device for room ventilation, preferably domestic ventilation, equipped with at least one supply air module ( 1 ) and at least one exhaust air module ( 2 ), whereby the supply air module ( 1 ) and the exhaust air module ( 2 ) are installed in different rooms or in different places of a room and the supply air module ( 1 ) with at least one air supply ( 15 ) and at least one air outlet ( 16 ) and the exhaust air module ( 2 ) with at least one air supply ( 17 ) and at least one air outlet ( 18 ) and the modules are installed in the room (s) so that the air supply ( 15 ) of the supply air module ( 1 ) is supplied with outside air and through the air outlet ( 16 ) of the supply air module ( 1 ) the air flows directly into the room as well as the air supply ( 17 ) of the exhaust air module ( 2 ) is supplied with air from the room and the air outlet ( 18 ) of the exhaust air module ( 2 ) Discharges air into the outside air, characterized in that the supply air module (s) ( 1 ) with at least one condenser-evaporator element ( 9 ) and the exhaust module (s) ( 2 ) with at least one condenser-evaporator element ( 10 ) and the device with at least one preferably in the supply air module ( 1 ) and / or exhaust air module ( 2 ) accommodated flow valve ( 21 ), at least one compressor ( 3 ) and a refrigerant line ( 6 ) and the condenser-evaporator elements ( 9 ) ( 10 ) the supply air ( 1 ) and exhaust air modules ( 2 ), the flow valve (s) ( 21 ) and the compressor (s) ( 3 ) via a refrigerant line ( 6 ) are connected to a refrigerant circuit whereby the compressor (s) ( 3 ) and / or the flow valve (s) ( 21 ) are temperature-dependent controlled. Device for room ventilation, preferably domestic ventilation, according to claim 1 or 2, characterized in that the / the supply air module (s) ( 1 ) ( 11 ) and the exhaust module (s) ( 2 ) ( 12 ) each with at least one air filter ( 19 ) and / or at least one fan ( 20 ) are equipped so that by the air supply ( 15 ) ( 17 ) and the air outlet ( 16 ) ( 18 ) of the respective module through the air filter ( 19 ) and / or fan (s) ( 20 ) flows. Device for room ventilation, preferably domestic ventilation, according to the preceding claims, characterized in that the air supply ( 15 ) of the supply air module ( 1 ) ( 11 ) and / or the air outlet ( 18 ) of the exhaust air module ( 2 ) ( 12 ) are equipped with pipelines such as ventilation ducts or ventilation pipes such that through the pipelines the air supply ( 15 ) of the supply air module ( 1 ) ( 11 ) the fresh air and through the pipes of the air outlet ( 18 ) of the exhaust air module ( 2 ) ( 12 ) the exhaust air flows. Device for room ventilation, preferably domestic ventilation, according to the preceding claims, characterized in that the / the supply air module (s) ( 1 ) ( 11 ) each having at least one recirculation air flap ( 23 ) are designed so that the supply air is mixed with room air, by the by the air supply ( 15 ) flowing outside air with the help of the recirculation flap ( 23 ) is mixed with air from the room and / or the exhaust module (s) ( 2 ) ( 12 ) each having at least one recirculation air flap ( 23 ) are designed so that the supply air is mixed with outside air, by the by the air supply ( 17 ) flowing room air with the help of the recirculation damper ( 23 ) is mixed with outside air. Device for room ventilation, preferably domestic ventilation, according to the preceding claims, characterized in that the device with the / the supply air module (s) ( 1 ) ( 11 ) and the exhaust module (s) ( 2 ) ( 12 ) is formed so that the air passing through the air outlet ( 16 ) of the supply air module (s) ( 1 ) ( 11 ) flows into the room, is cooled or heated and the device is operated as an air conditioning and / or heating system. Device for room ventilation, preferably domestic ventilation, according to the preceding claims, characterized in that the / the supply air module (s) ( 1 ) ( 11 ) and the exhaust module (s) ( 2 ) ( 12 ) like that are formed, that the air, which through the air outlet ( 16 ) of the supply air module (s) ( 1 ) ( 11 ) flows into the room, moistened or dehumidified and / or ionized. Device for room ventilation, preferably domestic ventilation, according to the preceding claims, characterized in that the device is designed so that it absorbs heat from at least one heat source ( 26 ) uses. Device for room ventilation, preferably domestic ventilation, according to the preceding claims, characterized in that the device is designed so that at least one central heat pump ( 25 ) and / or at least one central heat storage ( 25 ) and / or at least one central energy storage caches energy or heat. Device for room ventilation, preferably domestic ventilation, according to the preceding claims, characterized in that the / the exhaust module (s) ( 2 ) are formed so that the condenser-evaporator element ( 10 ) of the respective exhaust air module ( 2 ) upstream of a cooling module which pre-cools the air and in the air flow of the exhaust air module ( 2 ) and which preferably consists of a condenser-evaporator element ( 10 ), which is integrated in the refrigerant circuit. Device for room ventilation, preferably domestic ventilation, according to the preceding claims, characterized in that the device is designed so that the / the compressors ( 3 ) and / or the flow valve (s) ( 21 ) are temperature-dependent controlled so that a preselected desired room temperature is reached. Device for room ventilation, preferably domestic ventilation, according to the preceding claims, characterized in that the device with one or more wired and / or wireless sensor (s), such as temperature ( 22 ), Humidity, CO2 or other sensors. Device for room ventilation, preferably domestic ventilation, according to the preceding claims, characterized in that the device with a control ( 4 ) is provided, which is equipped with wired and / or wireless inputs and outputs and at least one wired and / or wireless input unit and at least one communication unit, which is adapted to communicate with wired and / or wireless external devices, and dependent from the temperature ( 22 ), Humidity, CO2 or other sensors wired and / or wireless compressors ( 3 ), Flow valve (s) ( 21 ) and / or recirculation damper (s) ( 23 ) and / or wired and / or wireless heat pump (s) ( 25 ) and / or the / the central (s) energy storage controls and / or wired and / or wireless heating systems on or off and / or the entire control of / the heating system (s) takes over.

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