Heat exchange – Structural installation – Heating and cooling
Patent
1992-08-24
1994-11-15
Rivell, John
Heat exchange
Structural installation
Heating and cooling
165 56, 165904, F24F 500, F24F 1322, E04B 902, F24D 316
Patent
active
053639081
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a cooling arrangement according to the preamble of Claim 1.
With heating and cooling arrangements in the vicinity of which bodies are located which with respect to temperature differ strongly from the temperature of the heating and cooling arrangement, the problem of condensation water development can occur if the heating and cooling arrangement as well as the bodies are surrounded by vapor-containing air. Such a condensation water formation is particularly disturbing if the cooling arrangement is of the type in which a cooling pipe through flows cooling fluid is disposed on a room ceiling. In this case is formed on these pipes condensation or sweat water which drips onto the floor.
Radiation heating systems are known having pipes through which flows a heating fluid which pipes are disposed on the underside of a bent metal sheet which, in turn, is fastened on a ceiling by means of wires (CH-P 282 290). Between two metal sheets disposed one next to the other a lamp is provided for purposes of illumination. If through the pipes flows a cooling fluid the formation of condensation water is unavoidable.
Furthermore a ceiling heating system is known with heating pipes disposed in parallel at a distance from one another wherein above the heating pipe is suspended a clamping rail having dovetail-form notches into which are slid the radiation bars (DE-AS 1 604 079). In the case of this ceiling heating system the formation of sweat water is also unavoidable if through the heating pipe flows a fluid whose temperature is significantly below the ambient temperature.
With another known heat exchanger having pipes welded on the underside of a metal plate and being suspended from a room ceiling (DE-GM 69 29 860) likewise no measures are taken to avoid or decrease the sweat water.
Furthermore, an arrangement for heating or cooling rooms utilizing solar rays or heat radiation by means of hollow bodies is known in which through the hollow bodies flows a gaseous or liquid heat carrier (AT-P 321 518). Into the hollow bodies storage substances are herein introduced whose crystallisation temperature for cooling the rooms is below the desired room temperature and above the radiation temperature of the hollow bodies exposed in the open. For the elimination of the developing condensate a condensate collector and a condensate pump are provided.
Further, a collector for a device for ventilating rooms with moist and/or greasy atmosphere is known which is fastened in the form of an element on a subceiling (DE-AS 2 718 611). This collector has several grooves of which some have openings upward and some openings downward. Each groove directed downward therein engages two grooves directed upward - and conversely. For heating or cooling a room these connected structures are not suitable.
In a known subceiling for shielding supporting ceilings which has surfaces at which condensate forms, ceiling elements are provided which project with their margin segments into a groove having an arc-form base element (DE-P 3 507 306). In order to be able to draw off fluids to the desired extent via an intermediate space between the groove and the ceiling elements the groove with respect to the ceiling elements is implemented to be height-adjustable. For heating and cooling devices with pipes carrying gaseous or liquid cooling media this subceiling is not suitable. The same applies also for a further known arrangement for ceiling suspension and area ventilation of rooms with grease-containing vapors (DE-OS 3 713 514).
Lastly, a ceiling/wall/radiation heat system is also known in which a heat-carrying water pipe is integrated into the radiation areas of a ceiling radiator (DE-OS 2 803 980). When using this system for cooling rooms it is possible to go below the dew point and the developing sweat water can be carried off in a groove-like lower cover strip. Specifically the system has a hollow aluminum profile section with rectangular cross section fastened on wood panelling of a concrete ceiling and carries a hot or cold water pipe
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