Mixing section for supply air and return air in an air-conditioning apparatus
AssigneeABB Flakt AB
InventorsSeppo K. Kanninen, Seppo J. Leskinen, Ingmar E. Rolin
Life of this patent
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Abstract
Mixing section for outdoor air and return air in an air-conditioning apparatus, the mixing section being positioned between a supply duct supplying outdoor air into a room and a return duct removing exhaust air from the room for mixing outdoor air and return air. The supply and return ducts comprise adjusting devices for adjusting the air flows. To control the air flows at different mixing ratios and to make the mixing more efficient, guides are provided after the adjusting devices of both the supply device and the return device in a mixing space so as to divide the air flows passing through the adjusting devices into a plurality of separate interlapping air jets crossing each other.
Claims13
A mixing section for supply air and return air in an air-conditioning apparatus comprising:
- a supply device supplying outdoor air into a room and comprising a supply duct between outdoor air and the room for an outdoor air flow, and means for adjusting the outdoor air flow;
- an exhaust device passing exhaust air from the room and comprising an exhaust duct from the room for an exhaust air flow, and means for adjusting the exhaust air flow;
- a return device for returning exhaust air as return air flow into the room and comprising a return duct between the exhaust duct and the supply duct for the return air flow, and means for adjusting the return air flow, the supply device and the return device having a common mixing space for mixing the outdoor air and return air flows;
- and
- a guide means provided at the side of the mixing space which is at least after one of the adjusting means of the supply device and the adjusting means of the return device, and which forms air flow paths after the one adjusting means for guiding the air flow passing through the one adjusting means into the mixing space through said flow paths in several separate air jets which cross and interlap with the air flow passing through the other adjusting means and into the mixing space.
Dependencies are inferred from the claim text.