DE202018106277U1 - Air conditioning arrangement for a control cabinet and control cabinet - Google Patents

Abstract

Air conditioning arrangement (100) for a control cabinet (10), comprising a first heat exchanger (13) for transferring heat to a heat transfer medium and preferably comprising a second heat exchanger (14) for releasing the heat transferred to the heat transfer medium by means of the first heat exchanger (13), characterized in that the air-conditioning arrangement (100) has an atomizing device (24), the atomizing device (24) being able to be arranged outside the control cabinet (10), the atomizing device (24) for atomizing a condensate formed on the first heat exchanger (13) 19) is formed.

Description

The present invention relates to an air conditioning system for a control cabinet, comprising a first heat exchanger for transferring heat to a heat transfer medium and preferably comprising a second heat exchanger for releasing the heat transferred to the heat transfer medium by means of the first heat exchanger.

Furthermore, the present invention relates to a control cabinet with an air conditioning arrangement and an atomizing device for an air conditioning arrangement.

Technological background

In the case of housings with components that generate waste heat, such as electronic cabinets, switch cabinets, housing systems or computer systems, the components that produce waste heat are cooled in the prior art by air conditioning arrangements which have a first heat exchanger arranged inside the housing for transferring heat to a heat transfer medium and a second outside of the housing arranged heat exchanger for dissipating the heat.

The DE 20 2008 016 671 U1 the applicant discloses an air conditioning arrangement with a refrigeration circuit for performing a compression operation, in which a refrigerant is compressed to a high pressure level via a compressor and is directed into a condenser and cooled there, whereby heat energy is released to an environment and is then expanded via an expansion valve, so that the refrigerant evaporates by absorbing thermal energy via a heat absorbent. In the air conditioning arrangement, the refrigerant is pumped around in an additional pumping operation without a change in pressure, so that heat is transported from a heat-absorbing heat exchanger to a heat-emitting heat exchanger according to a heat exchanger principle.

From the DE 10 2006 013 271 B4 a condensate evaporator is known with an electrically heatable receiving space for the condensate water to be evaporated, which accumulates in a cooling device. A construction that is as compact and simple as possible is achieved in that the receiving space is formed by a pipe section, on the outside of which at least one heating element that is in thermal contact with the pipe section is arranged and at one end an inlet for the condensed water supplied and at the other end thereof an outlet for the water vapor generated by the heating element from the condensed water is arranged.

From the DE 20 2009 006 916 U1 The applicant is aware of a cooling device for a housing with components that generate waste heat, such as an electronic cabinet, control cabinet, housing systems or computer systems, which has a passive cooling system working with a predetermined cooling temperature and an active cooling element that can be switched on when the predetermined cooling temperature of the passive cooling system is exceeded and can be switched down to the predetermined cooling temperature Cooling system includes. The cooling is carried out by a combined heat exchanger, which works both as a condenser for the active (compressor) cooling system and as a heat exchanger for the passive cooling system.

Due to the lowering of the air temperature in the housing, water vapor contained in the air can condense out in particular on the first heat exchanger. The resulting condensate must then be removed to protect the components in the housing.

For this purpose, systems are known in the prior art with which the condensate formed is evaporated. For this purpose, a hot refrigerant evaporated in an evaporator of a compression refrigeration machine can be guided past a condensate collection container in order to use the thermal energy of the heated refrigerant to evaporate the condensate. With these systems, the condensate can only be evaporated when the chiller is in operation.

Another solution known in the prior art consists in arranging an electrical heating device in a condensate collecting container with which the condensate is evaporated. With this solution, however, the need for electrical energy is very high.

Presentation of the invention: task, solution, advantages

The present invention has for its object to provide an air conditioning arrangement for a control cabinet, in which a condensate arising at a heat exchanger can be discharged with a lower energy requirement than known solutions and regardless of the operating state of the air conditioning arrangement. Furthermore, it is an object of the present invention to provide a control cabinet and an atomizing device for an air conditioning arrangement with which the aforementioned advantages are achieved.

To achieve the object on which the invention is based, an air conditioning arrangement for a switchgear cabinet is proposed, comprising a first heat exchanger for the transmission of Heat to a heat transfer medium and preferably comprising a second heat exchanger for releasing the heat transferred to the heat transfer medium by means of the first heat exchanger, the air-conditioning arrangement having an atomization device, the atomization device being able to be arranged outside the control cabinet, the atomization device for atomizing an emerging on the first heat exchanger Condensate is formed.

The control cabinet can be designed as an electronics cabinet, housing system or housing for a computer system.

The control cabinet preferably has an interior, components, in particular electronic or electrical components, which generate waste heat can be arranged or arranged in the interior. The first heat exchanger preferably faces the interior and / or is arranged in the interior of the control cabinet, and is designed to absorb heat from the air in the interior of the control cabinet and to transfer it to a heat transfer medium or to a heat transfer medium. The second heat exchanger, which is preferably provided, particularly preferably faces the external environment of the control cabinet and / or is arranged outside the control cabinet in the ambient air of the control cabinet, and is designed to emit the heat transferred to the heat transfer medium to the ambient air by means of the first heat exchanger. For this purpose, the first heat exchanger and the second heat exchanger can be arranged in a heat transfer circuit comprising a flow line and a return line, so that the heat transfer medium can circulate through the first heat exchanger and the second heat exchanger. The air conditioning arrangement can furthermore be a passive or an active air conditioning arrangement.

If only a first heat exchanger is provided, the first heat exchanger preferably facing the interior and / or being arranged in the interior of the control cabinet, and being designed to absorb heat from the air in the interior of the control cabinet and to transfer it to a heat transfer medium or to a heat transfer medium, it can be provided that the heat transfer medium or the heat transfer medium, preferably water, is supplied to the single first heat exchanger from an external source. The heat transfer medium is removed after passing through the first heat exchanger and in particular is not fed back to the first heat exchanger.

An air conditioning arrangement, which comprises only a first heat exchanger, can in particular be referred to or designed as an air / water heat exchanger arrangement.

The air conditioning arrangement can be designed as an air conditioning device, in particular the air conditioning device then comprises the atomizing device. It is also conceivable that the air conditioning arrangement is designed as a combination of an atomizing device and an air conditioning device, the air conditioning device comprising a first heat exchanger for transferring heat to a heat transfer medium and preferably a second heat exchanger for releasing the heat transferred to the heat transfer medium by means of the first heat exchanger.

Heat from the air in the interior of the control cabinet can be transferred to the heat transfer medium by means of the first heat exchanger. The air in the interior of the control cabinet and in particular in the immediate vicinity of the first heat exchanger cools down so far that the dew point temperature of water vapor contained in the air can be fallen below. The water vapor then condenses in the vicinity and in particular on a surface of the first heat exchanger. The resulting condensate is deposited on the first heat exchanger or on the inside of the control cabinet.

According to the invention, it is now proposed that the condensate formed on the first heat exchanger is atomized by means of an atomizing device of the air conditioning arrangement. The atomizing device can also be called a “nebulizing device”.

Atomizing the condensate is understood to mean breaking the condensate down into very fine droplets as an aerosol in the air. The aerosol can also be called a mist or spray. The aerosol can consist of drops, all of which have the same diameter, or it can contain drops of different sizes.

Advantageously, much less energy is required for atomizing the condensate by means of the atomizing device than in the case of solutions known from the prior art, in which the condensate is evaporated by means of an electrical heating device or by using the heat of a refrigerant. Furthermore, the condensate can also be atomized and removed when the air conditioning arrangement is not in operation.

The atomization device can preferably be arranged or arranged outside the control cabinet, that is to say outside of an interior of the control cabinet.

The condensate to be atomized by means of the atomizing device is further preferably discharged to the ambient air of the control cabinet. Appropriate discharge devices can be used for this such as a drain line. For example, the condensate formed on the first heat exchanger can be conveyed out of the control cabinet by means of a drain line before atomization, so that the condensate is atomized outside the control cabinet. The atomization device is then preferably arranged outside the control cabinet.

The atomizing device is preferably arranged such that the condensate obtained at the first heat exchanger can flow to the atomizing device exclusively by means of gravity. For this purpose, the atomization device is arranged at least partially or completely below the first heat exchanger in relation to a vertical direction, the atomization device not having to be arranged exactly below the first heat exchanger in relation to a horizontal direction and rather generally in relation to a horizontal direction next to the first heat exchanger will be arranged. The atomization device is particularly preferably arranged outside the control cabinet and partially or completely below the first heat exchanger in relation to a vertical direction.

A valve can be provided in the drain line, by means of which the condensate can be prevented from flowing back and ambient air from entering the interior of the control cabinet. This measure ensures that the control cabinet is essentially hermetically sealed from the ambient air.

It is preferably provided that the air-conditioning arrangement is a refrigeration machine, in particular a compression refrigeration machine, the first heat exchanger being an evaporator, and the second heat exchanger being a condenser, and / or the heat transfer medium being a refrigerant.

In a compression refrigeration machine, a refrigerant is moved in a closed circuit and successively experiences various changes in the state of matter. Gaseous refrigerant is compressed by a compressor and condenses with the release of heat in the subsequent condenser. The condensed refrigerant is expanded by a throttle and evaporated in the evaporator while absorbing heat.

By atomizing the condensate by means of the atomizing device, the condensate can also be discharged when the air conditioning arrangement is not being operated, i.e. in the case of an air conditioning arrangement designed as a refrigeration machine, in particular as a compression refrigeration machine, when the compressor is not in operation and therefore is not compressed and overheated refrigerant is generated to evaporate the condensate.

Alternatively, the air conditioning arrangement can also be designed as an absorption refrigerator, adsorption refrigerator, diffusion absorption refrigerator, Joule-Thomson refrigerator or any other suitable refrigerator.

Furthermore, the air conditioning arrangement can be designed as a heat pipe or as a heat pipe. The first heat exchanger is formed by the heating zone of the heat pipe or the heat pipe and the second heat exchanger by the cooling zone of the heat pipe or the heat pipe.

In addition, it is possible for the air conditioning arrangement to be designed as an air-water heat exchanger. A lot of condensate can accumulate, especially in an air-water heat exchanger. As a rule, the condensate accumulates below the first heat exchanger. The condensate is preferably conducted to an outside of the control cabinet by means of a discharge device such as a drain line. The atomization device is then preferably also arranged outside the control cabinet and particularly preferably viewed below the first heat exchanger in the vertical direction, so that the condensate is atomized outside the control cabinet and preferably below the first heat exchanger viewed in the vertical direction.

The heat transfer medium is preferably designed as a refrigerant. Alternatively, the heat transfer medium can also be designed as a coolant, such as cooling water.

It is preferably provided that the atomizing device is an ultrasonic atomizer.

An ultrasonic atomizer can also be called an ultrasonic nebulizer. The atomization of the condensate or the generation of a mist from the condensate takes place in that the ultrasonic atomizer transmits mechanical vibrations to the condensate. The vibrations can cause capillary waves on the surface of the condensate, which rise exponentially with increasing excitation frequency. If the excitation frequency reaches a certain value, drops of a certain diameter can form and detach from the condensate as a mist, spray or aerosol.

The design of the atomizing device as an ultrasonic atomizer is particularly advantageous, since for atomizing the condensate by means of an ultrasonic atomizer in comparison to one Evaporation of the condensate requires a much lower energy requirement.

Furthermore, an ultrasonic atomizer can also be operated when the air conditioning arrangement itself is not in operation.

However, the design of the atomizing device is not restricted to an ultrasonic atomizer. The atomizing device can also be designed as a rotary atomizer or compressed air atomizer or as any other suitable device for atomizing a condensate. In the case of a rotary atomizer, the condensate is thrown from the edge of a rapidly rotating disc against a fine sieve and the resulting mist is blown into the room. In a compressed air atomizer, compressed air is introduced into the condensate with fine nozzles in order to atomize it into tiny droplets.

The air conditioning arrangement preferably comprises a fan.

The condensate atomized into a spray, aerosol or mist can be blown into the ambient air of the control cabinet by means of the fan. In this way, it can be ensured that the atomized condensate does not re-enter the control cabinet to protect the control cabinet and the electronic components arranged therein.

It is further preferably provided that the air conditioning system has a condensate collecting device for collecting the condensate formed on the first heat exchanger, the atomizing device being designed to atomize the condensate collected in the condensate collecting device.

The condensate collecting device is preferably designed as a condensate collecting container.

It is further preferably provided that the ultrasonic atomizer is designed to introduce ultrasonic waves directly into the condensate and / or that a sound generator, in particular a membrane and / or a vibration element such as a piezoelectric ceramic, of the ultrasonic atomizer is arranged in physical contact with the condensate.

The atomization device is particularly preferably integrated into the condensate collecting device, in particular into the condensate collecting container.

Thus, it can be provided that the atomizing device, in particular the ultrasonic atomizer, is arranged on a bottom or on a side wall of the condensate collecting container or is integrated therein. The arrangement on the bottom or on the side wall can take place on an outside or an inside of the condensate collecting container.

If the atomizing device is arranged in physical contact with the condensate, for example by an integrated arrangement in the condensate collecting container, the sound energy is introduced into the condensate particularly effectively.

However, it is also possible that the atomizing device is not arranged in direct physical contact with the condensate. It is thus possible that when the atomization device is configured as an ultrasound generator, ultrasound waves generated by the ultrasound atomizer are first transmitted to the air and then from the air to the condensate.

It is further preferably provided that the atomizing device is designed such that when the condensate is atomized, at least 95%, preferably at least 98%, particularly preferably at least 99%, very particularly preferably at least 99.5%, of the collected condensate remains in the liquid phase. Furthermore, it can preferably be provided that the atomizing device is designed such that when the condensate is atomized less than 5%, preferably less than 2%, particularly preferably less than 1%, very particularly preferably less than 0.5%, of the collected condensate the liquid phase changes into the gaseous phase.

In addition to atomization, the condensate can also evaporate to remove the condensate. However, it is preferred that a large part of the condensate is removed by atomization, so that only a small part of the condensate changes from the liquid to the gaseous phase.

This measure advantageously further reduces the energy requirement of the air conditioning arrangement, in particular of the atomizing device. The ultrasonic atomizer particularly preferably comprises a, in particular piezoelectric, sound generator, furthermore in particular a piezoelectric ceramic.

A piezoelectric sound generator or a piezoelectric ceramic ensures a particularly effective conversion of electrical energy into sound energy and thus a particularly energy-efficient atomization of the condensate.

It is further preferably provided that the ultrasonic atomizer has mechanical vibrations introduces the condensate, the vibrations preferably having a frequency of more than 30 kHz, more preferably more than 50 kHz, even more preferably more than 150 kHz, particularly preferably more than 1 MHz, particularly preferably more than 2 MHz, very particularly preferably more than 3 MHz, more particularly preferably of more than 4 MHz.

It can further preferably be provided that the atomization device is designed to generate drops of the condensate, the mean drop size being less than 10 μm, preferably less than 5 μm, more preferably less than 3 μm, particularly preferably less than 2 μm.

The condensate collecting device, in particular the condensate collecting container, is preferably arranged outside the control cabinet. For this purpose, a drain line can also be provided, which conducts the condensate formed in the interior of the control cabinet on the first heat exchanger, possibly with the aid of valves, to an outside of the control cabinet and into the condensate collecting device arranged outside the control cabinet.

The condensate collecting device can be arranged in the immediate vicinity of the control cabinet or on the control cabinet. In addition, it is also possible for the condensate collecting device to be arranged at a distance, for example at least 1 m, preferably at least 5 m, from the control cabinet. The condensate is then directed into the remote condensate trap by means of the drain line.

In addition, condensates from several air conditioning systems can be directed into the condensate collecting device, which is preferably arranged at a distance from the control cabinet. The condensate of a number of switch cabinets or a number of air conditioning arrangements can then be atomized by means of the atomization device.

Another solution to the problem on which the invention is based is to provide a control cabinet with a previously described air conditioning arrangement.

A still further solution to the object on which the invention is based is to provide an atomizing device for a previously described air conditioning arrangement.

The atomizing device can be designed in accordance with the configurations explained for the above-described air conditioning arrangement.

In addition, the object on which the invention is based is achieved by an atomization device, the atomization device being designed to be retrofitted to a control cabinet and / or air conditioning arrangement, in particular the one described above.

The atomizing device can be designed in accordance with the configurations explained for the above-described air conditioning arrangement.

The atomizing device is particularly preferably not integrated in the air conditioning arrangement.

A further solution to the problem on which the invention is based consists in a system comprising a control cabinet and an air conditioning arrangement with an atomizing device.

The control cabinet and / or the air conditioning arrangement and / or the atomizing device can be designed in accordance with one of the above-described configurations.

A plurality of control cabinets and / or air conditioning arrangements are preferably provided, and the atomizing device is designed to atomize the condensate of the plurality of control cabinets and / or air conditioning arrangements. In particular, the system comprises only one atomization device.

Furthermore, the use of an atomization device for an air conditioning arrangement of a control cabinet can be provided. The atomization device is preferably used to atomize a condensate formed on a first heat exchanger of the air conditioning arrangement of the control cabinet. In addition, the atomization device used can be designed in accordance with the configurations explained for the above-described air conditioning arrangement.

According to a method for condensate removal for a control cabinet, in particular feasible with a previously described air conditioning arrangement, condensate is atomized, which is created on a first heat exchanger of an air conditioning arrangement of the control cabinet.

A previously described atomizing device or a previously described air conditioning arrangement or control cabinet can be used for the method. The corresponding atomizing device and the corresponding air conditioning arrangement can be configured as described above.

It is preferably provided that the condensate is atomized by introducing ultrasonic waves into the condensate.

It is further preferred that when the condensate is atomized, at least 95%, more preferably at least 98%, particularly preferably at least 99%, very particularly preferably at least 99.5%, of the collected condensate remains in the liquid phase. Furthermore, it can preferably be provided that when the condensate is atomized, less than 5%, preferably less than 2%, particularly preferably less than 1%, very particularly preferably less than 0.5%, of the collected condensate changes from the liquid to the gaseous phase .

Figure list

• 1 eine Klimatisierungsanordnung in einem Schaltschrank mit einer Zerstäubungseinrichtung,
• 2 eine weitere Klimatisierungsanordnung in einem Schaltschrank mit einer Zerstäubungseinrichtung,
• 3 eine Kondensatauffangeinrichtung mit einer Zerstäubungseinrichtung für eine Klimatisierungsanordnung, und
• 4 eine weitere Kondensatauffangeinrichtung mit einer Zerstäubungseinrichtung für eine Klimatisierungsanordnung, und
• 5 eine weitere Klimatisierungsanordnung in einem Schaltschrank mit einer Zerstäubungseinrichtung.

The invention is explained in more detail with reference to the figures. Show it:

• 1 an air conditioning arrangement in a control cabinet with an atomizing device,
• 2nd another air conditioning arrangement in a control cabinet with an atomizing device,
• 3rd a condensate trap with an atomizing device for an air conditioning arrangement, and
• 4th a further condensate collecting device with an atomizing device for an air conditioning arrangement, and
• 5 a further air conditioning arrangement in a control cabinet with an atomizing device.

Detailed description of the figures

1 shows an air conditioning arrangement 100 . The air conditioning arrangement 100 is on a control cabinet 10th arranged. In an interior 11 of the control cabinet 10th are heat-emitting components 12th , such as electrical or electronic components. The air conditioning arrangement 100 comprises a first heat exchanger 13 and a second heat exchanger 14 . The first heat exchanger 13 and the second heat exchanger 14 are via a flow line 15 as well as a return line 16 connected with each other. Warmth from the interior 11 of the control cabinet 10th is about the first heat exchanger 13 transferred to a heat transfer medium. The heat transfer medium is via the return line 16 to the second heat exchanger 14 conducted by the heat absorbed by the heat transfer medium to the ambient air of the control cabinet 10th is delivered. The cooled heat transfer medium is then on the flow line 15 back to the first heat exchanger 13 headed.

The air conditioning arrangement 100 is especially designed as a free cooler. However, there are also configurations of the air conditioning arrangement 100 conceivable as a heat pipe, adsorption chiller or absorption chiller. If the air conditioning arrangement 100 is designed as a heat pipe, so is the first heat exchanger 13 the heating zone of the heat pipe and the second heat exchanger 14 is the cooling zone of the heat pipe.

By transferring heat from the interior 11 of the control cabinet 10th on the heat transfer medium by means of the first heat exchanger 13 the air inside 11 of the control cabinet 10th cooled down. If the dew point temperature falls below in the air in the interior 11 contained water vapor condenses the water vapor. The condensation takes place especially in the vicinity or on a surface 18th of the first heat exchanger 13 instead of. On the surface 18th of the first heat exchanger 13 the resulting condensate collects 19th . To accumulate the condensate 19th in the interior 11 of the control cabinet 10th to avoid the condensate 19th be dissipated. Here it is due to gravity on the surface 18th of the first heat exchanger 13 draining condensate 19th via a collecting device 20th and a drain pipe 21 in a condensate collector 22 trained condensate trap 23 headed. In the condensate trap 22 that accumulates on the first heat exchanger 13 resulting condensate 19th . In the condensate trap 22 is an atomizer 24th arranged integrated. By operating the atomizer 24th this will be in the condensate trap 22 collected condensate 19th atomized and as a mist 25th to the outside environment of the electronic cabinet 10th submitted. The fog 25th consists of drops 26 of the condensate 19th with drop sizes of, for example, less than 5 µm. In particular, the drops 26 in the liquid phase. The atomizer 24th can be used as a rotary atomizer, compressed air atomizer or in a preferred embodiment as an ultrasonic atomizer 27 be trained. Contamination of the air in the interior 11 of the control cabinet 10th with the ambient air of the control cabinet 10th can be avoided in the drain pipe 21 a valve 28 be provided.

2nd shows a further embodiment of the air conditioning arrangement 100 . The air conditioning arrangement 100 is as a compression chiller 17th trained and includes one as an evaporator 29 trained first heat exchanger 13 as well as one as a capacitor 30th trained second heat exchanger 14 . Furthermore, the compression refrigerator includes 17th a compressor 31 such as a throttle 32 . The atomizer 24th is in the embodiment of 2nd as an ultrasonic atomizer 27 educated. In addition, the embodiment of the 2nd identical to the embodiment of the 1 .

3rd shows a condensate trap 22 which as a condensate collector 23 is trained. In an interior 33 the condensate trap 23 it will be on the surface 18th of the first heat exchanger 13 resulting condensate 19th collected. In a floor 34 the condensate trap 23 is an ultrasonic atomizer 27 arranged integrated. The ultrasonic atomizer 27 exhibits a piezoelectric ceramic 35 on whose vibrations hit a membrane 36 be transmitted. When operating the ultrasonic atomizer 27 vibrates the piezoelectric ceramic 35 and thus also the membrane 36 with a frequency of preferably more than 1 MHz. Through direct contact of the membrane 36 with the condensate 19th is the sound energy in the condensate 19th transfer. On the surface 37 of the condensate 19th capillary waves arise 38 from which drops 26 be detached.

4th shows a further embodiment of the condensate collector 23 the 3rd . In the design of the 4th is the ultrasonic atomizer 27 on a side wall 39 the condensate trap 23 arranged. When operating the ultrasonic atomizer 27 becomes the sidewall 39 in high-frequency vibrations, which on the in the condensate collector 23 collected condensate 19th be transmitted. By on the condensate 19th The condensate is transferred to vibrations 19th in the form of a fog 25th atomized.

5 shows a further embodiment of an air conditioning arrangement 100 . The air conditioning arrangement is designed as an air / water heat exchanger arrangement. In contrast to the formation of the air conditioning arrangement 1 is in the representation in 5 just a heat exchanger 13 intended. To the heat exchanger 13 leads from outside the air conditioning arrangement 100 a flow line 15 by means of which water as a heat transfer medium to the heat exchanger 13 to be led. That in the heat exchanger 13 heated water is then fed through the return line 16 back and forth from the air conditioning arrangement 100 guided. In addition, the embodiment of the 5 identical to the embodiment of the 1 .

Reference list

100

Air conditioning arrangement

10th

switch cabinet

11

inner space

12th

Component

13

First heat exchanger

14

Second heat exchanger

15

Supply line

16

Return line

17th

Cold compression machine

18th

surface

19th

condensate

20th

Fall arrester

21

Drain pipe

22

Condensate trap

23

Condensate trap

24th

Atomizing device

25th

fog

26

drops

27

Ultrasonic atomizer

28

Valve

29

Evaporator

30th

capacitor

31

compressor

32

throttle

33

inner space

34

ground

35

Piezoelectric ceramics

36

membrane

37

surface

38

Capillary waves

39

Side wall

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included 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.

Patent literature cited

• DE 202008016671 U1 [0004]
• DE 102006013271 B4 [0005]
• DE 202009006916 U1 [0006]

Claims (11)

Air conditioning arrangement (100) for a control cabinet (10), comprising a first heat exchanger (13) for transferring heat to a heat transfer medium and preferably comprising a second heat exchanger (14) for releasing the heat transferred to the heat transfer medium by means of the first heat exchanger (13), characterized in that the air-conditioning arrangement (100) has an atomizing device (24), the atomizing device (24) being able to be arranged outside the control cabinet (10), the atomizing device (24) for atomizing a condensate formed on the first heat exchanger (13) 19) is formed. Air conditioning arrangement (100) Claim 1 , characterized in that the atomizing device (24) is an ultrasonic atomizer (27). Air conditioning arrangement (100) Claim 2 , characterized in that the ultrasonic atomizer (27) is designed to introduce ultrasonic waves directly into the condensate (19), and / or that a sound generator, in particular a membrane (36) and / or a vibration element, of the ultrasonic atomizer (27) is in physical contact with the condensate (19) is arranged. Air-conditioning arrangement (100) according to one of the preceding claims, characterized in that a condensate collecting device (22) is provided for collecting the condensate (19) formed on the first heat exchanger (13), the atomizing device (24) being formed in the condensate collecting device ( 22) to atomize collected condensate (19). Air conditioning arrangement (100) Claim 4 , characterized in that the atomizing device (24) is integrated in the condensate collecting device (22). Air conditioning arrangement (100) according to one of the preceding claims, characterized in that the atomizing device (24) is designed such that when the condensate (19) is atomized at least 95%, preferably at least 98%, particularly preferably at least 99%, very particularly preferably at least 99.5% of the condensate (19) collected remains in the liquid phase. Air conditioning arrangement (100) according to one of the preceding claims, characterized in that the ultrasonic atomizer (27) has a, in particular piezoelectric, sound generator, further in particular a piezoelectric ceramic (35), and / or that the ultrasonic atomizer (27) has mechanical vibrations in the Introduces condensate (19), the vibrations preferably having a frequency of more than 30 kHz, more preferably more than 50 kHz, even more preferably more than 150 kHz, particularly preferably more than 1 MHz, particularly preferably more than 2 MHz, very particularly preferably have more than 3 MHz, more particularly preferably more than 4 MHz, and / or that the atomizing device (24) is designed to generate drops (26) of the condensate (19), the average drop size being less than 10 μm, is preferably less than 5 μm, more preferably less than 3 μm, particularly preferably less than 2 μm. Control cabinet (10) with an air conditioning arrangement (100) according to one of the Claims 1 to 7 . Atomizing device (24) for an air conditioning arrangement (100) according to one of the Claims 1 to 7 . Use of an atomizing device, especially after Claim 9 , in a control cabinet for atomizing a condensate formed on a first heat exchanger of an air conditioning system (100) of the control cabinet. System comprising a control cabinet (10) and an air conditioning arrangement (100) with an atomizing device (24) Claim 9 .

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