EP0797054B1 - Kühlvorrichtung - Google Patents
Kühlvorrichtung Download PDFInfo
- Publication number
- EP0797054B1 EP0797054B1 EP97104081A EP97104081A EP0797054B1 EP 0797054 B1 EP0797054 B1 EP 0797054B1 EP 97104081 A EP97104081 A EP 97104081A EP 97104081 A EP97104081 A EP 97104081A EP 0797054 B1 EP0797054 B1 EP 0797054B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling chamber
- air
- cooling
- cooling device
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
- F24F1/0038—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room in combination with simultaneous exhaustion of inside air
Definitions
- the invention relates to a cooling device, in particular for cooling of indoor air.
- cooling is essential Room air on one of the people who are in the respective room stop, as a pleasant temperature is required.
- the Heat generation of such rooms results on the one hand from an internal amount of heat electrical equipment, computer equipment, lighting, but also by the people in this room or the other due to external heat such as solar radiation.
- Cooling devices are known for cooling room air, at where air is directed via a heat exchanger through which coolant flows and is led into the room to be cooled. Such a cooling device is in US 2 008 255.
- the invention has for its object to make a cooling device more compact To provide design with improved heat exchange.
- the cooling device should also be easy to install subsequently his.
- a cooling device proposed according to claim 1.
- the cooling device thus becomes the air to be cooled passed twice over the heat exchanger through which the coolant flows, in the countercurrent principle. This means that the air comes on first a first downstream of the coolant flow Section of the heat exchanger arranged in a first cooling chamber is cooled, then from the first cooling chamber in a second cooling chamber is passed where a second section of the Heat exchanger is arranged, which is upstream and thus cooler is as the first section. In this second cooling chamber the Air cooled further before it is returned to the room.
- two-stage cooling of the air according to the invention only one Heat exchanger required. This allows a compact design of the cooling device according to the invention. Due to the double flow of the heat exchanger in the counterflow principle is according to the invention also a particularly effective heat exchange before.
- the fan is in the air flow housing arranged.
- the air to be cooled is passed through the first cooling chamber Blower sucked in and through the airflow housing into the second Cooling chamber forwarded from there back to be cooled Room to be directed.
- the cooling device is at air inlet and outlet openings the cooling device at least one air guide intended.
- the air flow can be conducted through this air guide element be guaranteed that a draft-free cooling as possible becomes.
- the air guiding element be made sure that from the second cooling chamber cooled air emerging from the inlet opening of the first cooling chamber is diverted to not immediately return to the cooling device to be sucked in.
- This is advantageously at least an air guiding element a louvre grille.
- the airflow housing essentially has one semi-cylindrical shape. This makes a streamlined Allows air transportation.
- the air flow housing has in a further embodiment of the invention sound-absorbing Funds on.
- This can be a sound absorbing perforation and / or act as a sound-absorbing casing.
- the blower is a cross-flow blower.
- the outer dimensions the cooling device the pitch of a ceiling plate for a suspended Adapted ceiling.
- the single figure shows a cooling device according to the invention in schematic cross-sectional representation.
- the inventive cooling device 1 shown in the figure includes a first cooling chamber 10, a second cooling chamber 20 and one coolant-flow-through heat exchanger 30.
- the first cooling chamber 10 and the second cooling chamber 20 are adjacent and contiguous arranged, but separated from each other by a partition 12.
- the heat exchanger 30 is arranged so that it is through the Partition 12 extends through both cooling chambers 10, 20, with a first section 31 in the first cooling chamber 10 and with a second section 32 in the second cooling chamber 20 is arranged.
- the heat exchanger 30 is in the illustrated embodiment a finned heat exchanger with a meandering Coolant pipe 34.
- the heat exchanger 30 is arranged so that the flow of coolant in the coolant tube 34 (illustrated by arrow F) from the second cooling chamber 20 to the first cooling chamber 10 runs. This means that the second section 32 of the heat exchanger 30 in the second cooling chamber 20 is cooler than the first section 31 in the first cooling chamber 10.
- the two cooling chambers 10, 20 each have an air inlet opening 11, 21 and an air outlet opening 13, 23, which are parallel is arranged to expand the heat exchanger 30 that the Air flow path in the cooling chambers 10, 20 perpendicular to the surface of the heat exchanger 30 runs.
- An air flow housing is above the first and second cooling chambers 10, 20 60 arranged, which is a substantially semi-cylindrical Has shape.
- the outlet opening is through the air flow housing 60 13 of the first cooling chamber 10 with the inlet opening 21 connected to the second cooling chamber 20.
- a cross-flow fan 50 is arranged, through which air through the first cooling chamber 10 is drawn in through the airflow housing 60 blown to the second cooling chamber 20 and through the outlet opening 23 of the second cooling chamber 20 are expelled.
- the airflow housing is to ensure quiet operation 60 on the outside with an insulation layer 70 Mistake.
- the cooling device 1 is in the illustrated embodiment integrated into a ceiling.
- Cooling device 1 by means of mounting elements 82, 83 on one used in sections shown ceiling plate 80, that they with the inlet opening 11 of the first cooling chamber 10 and Outlet opening 23 of the second cooling chamber 20 to one to be cooled Room 90 points.
- the cooling device 1 On the room side, the cooling device 1 has a louvre grille 40 with a first section 41 and a second section 42, with the first section 41 of the lamellar grid 40 of the first cooling chamber 10, the second section 42 of the second cooling chamber 20 is assigned. Through the lamellas of the lamellar grid 40 the room air flow can be directed.
- the cooled according to the invention Air through the air outlet opening 23 and the second section 42 of the louvre grid 40 blown back into the space 90.
- the slats the lamellar grid 40 are set so that in the sense of Arrows L4 emerging air from the inlet opening 11 of the first cooling chamber 10 is directed away, thereby avoiding that this air is immediately sucked back into the cooling device. Furthermore the slats of the lamellar grid 40 are adjusted so that draft-free cooling of space 90 takes place.
- the cross flow fan 50 are operated in periodic alternation, whereby to maintain the Two-stage cooling according to the invention, the periods of the opposite direction operation are advantageously kept shorter than the periods the normal operation described above.
- the cooling device according to the invention described above draws is characterized by a compact design and can be with or without suspended false ceiling can be used. With an integration the cooling device in a ceiling plate for standardized ceiling elements is a simple installation, even at a later time, possible.
- the cooling device according to the invention can be individual can be switched on and off. You can also go through in their performance Speed regulation or control of a control valve in the to cooling room prevailing temperature needs to be adjusted. According to the coolant-flowed heat exchanger exploited in the counterflow principle. Because the air is the heat exchanger The heat exchange flows through twice, i.e. the cooling effect particularly effective.
- tandem training proves to be advantageous which two cooling devices according to the invention in mirror image, so with air outlets pointing away from each other.
- advantageously corresponds essentially to the size of this tandem arrangement the dimensions of a standard ceiling tile, so that the Removing a false ceiling instead of a ceiling tile element such a tandem cooling device can be used.
- Size of the standard ceiling tile 625 ⁇ 1250 mm so for the invention Cooling device, for example, a dimension of 300 ⁇ 1200 mm chosen, which is a dimension of 600 ⁇ 1200 mm for the tandem arrangement corresponds.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Description
Claims (7)
- Kühlvorrichtung, insbesondere für Raumluft, mit einer ersten Kühlkammer (10) und mit einer zweiten Kühlkammer (20), die durch eine Trennwand (12) voneinander getrennt aneinandergrenzend angeordnet sowie jeweils mit einer Eintrittsöffnung (11, 21) und einer Austrittsöffnung (13, 23) versehen sind, wobei die Austrittsöffnung (13) der ersten Kühlkammer (10) mit der Eintrittsöffnung (21) der zweiten Kühlkammer (20) durch ein Luftströmungsgehäuse (60) verbunden ist, in dem ein Gebläse (50) angeordnet ist, mittels dem ein zu kühlender Luftstrom durch die Eintrittsöffnung (11) der ersten Kühlkammer (10) aus einem Raum (90) angesogen, durch das Luftströmungsgehäuse (60) zur zweiten Kühlkammer (20) geblasen und durch die Austrittsöffnung (23) der zweiten Kühlkammer (20) in den Raum (90) ausgestoßen wird, und wobei die Eintrittsöffnung (11) der ersten Kühlkammer (10) und die Austrittsöffnung (23) der zweiten Kühlkammer (20) zu dem Raum (90) hin weisend angeordnet und mit wenigstens einem Luftleitelement (40) versehen sind, das den aus der Austrittsöffnung (23) der zweiten Kühlkammer (20) in den Raum (90) austretenden Luftstrom von der Eintrittsöffnung (11) der ersten Kühlkammer (10) wegleitet, und mit einem von einem Kühlmittel (F) durchströmten Wärmetauscher (30), der sich über die erste Kühlkammer (10) und die zweite Kühlkammer (20) derart erstreckt, daß der zu kühlende Luftstrom im Gegenstrom über den Wärmetauscher (30) streicht.
- Kühlvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Luftströmungsgehäuse (60) eine im wesentlichen halbzylindrische Form aufweist.
- Kühlvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Luftströmungsgehäuse (60) schalldämpfende Mittel (70) aufweist.
- Kühlvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Gebläse (50) ein Querstromgebläse ist.
- Kühlvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Luftleitelement (40) als Lamellengitter ausgebildet ist.
- Kühlvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Wärmetauscher (30) mit einer mäanderförmigen Kühlmittelleitung (34) versehen ist, die den Wärmeaustausch mit dem zu kühlenden Luftstrom verbessernde Lamellen aufweist.
- Kühlvorrichtung nach einem der Ansprüche 1 bis 6, gekennzeichnet durch Abmessungen, die an das Rastermaß einer Standarddeckenplatte (80) für eine den Raum (90) begrenzende abgehängte Raumdecke angepaßt sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19610518 | 1996-03-18 | ||
DE19610518A DE19610518C1 (de) | 1996-03-18 | 1996-03-18 | Kühlvorrichtung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0797054A2 EP0797054A2 (de) | 1997-09-24 |
EP0797054A3 EP0797054A3 (de) | 1998-03-25 |
EP0797054B1 true EP0797054B1 (de) | 2003-01-22 |
Family
ID=7788581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97104081A Expired - Lifetime EP0797054B1 (de) | 1996-03-18 | 1997-03-11 | Kühlvorrichtung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0797054B1 (de) |
AT (1) | ATE231602T1 (de) |
DE (2) | DE19610518C1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016203814A1 (ja) * | 2015-06-18 | 2016-12-22 | 三菱電機株式会社 | 空調装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2008255A (en) * | 1933-11-16 | 1935-07-16 | Larkin Refrigerating Corp | Counter flow air conditioner |
US2481625A (en) * | 1947-08-29 | 1949-09-13 | Thomas H Sarchet | Air-conditioning unit |
DE8816827U1 (de) * | 1988-08-04 | 1990-10-18 | KÜBA Kühlerfabrik Heinrich W. Schmitz GmbH, 8021 Baierbrunn | Luftkühler mit Leitgitter |
DE4016563A1 (de) * | 1990-05-23 | 1991-11-28 | Schako Metallwarenfabrik | Auslass |
JPH05322207A (ja) * | 1992-05-21 | 1993-12-07 | Toshiba Corp | 天井取付け形空気調和機 |
SE9301237L (sv) * | 1993-04-14 | 1994-10-15 | Farex As | Anordning för kylning av rumsluft |
-
1996
- 1996-03-18 DE DE19610518A patent/DE19610518C1/de not_active Expired - Fee Related
-
1997
- 1997-03-11 DE DE59709169T patent/DE59709169D1/de not_active Expired - Fee Related
- 1997-03-11 AT AT97104081T patent/ATE231602T1/de not_active IP Right Cessation
- 1997-03-11 EP EP97104081A patent/EP0797054B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0797054A3 (de) | 1998-03-25 |
ATE231602T1 (de) | 2003-02-15 |
DE19610518C1 (de) | 1997-06-26 |
DE59709169D1 (de) | 2003-02-27 |
EP0797054A2 (de) | 1997-09-24 |
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