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Underframe Conditioning System
Pneumafil has developed an energy saving, patented approach to air conditioning of the open end spinning process. This method offers considerable advantages over conventional systems which have evolved through the traditional applications of space conditioning methods. Conventional systems are designed to supply conditioned air at near saturation levels from overhead ducts. Firstly, it is nearly impossible to deliver all the conditioned air from overhead ducts down to the sliver and critical process zones of the machinery below. This is further complicated by the fact that the sliver cans are partially nested under the machine. Secondly, the portion of conditioned air that does reach the critical areas arrives at elevated temperatures, lower relative humidity levels, and at an inconsistent turbulence level. Furthermore, the air is contaminated on the way down by dust and fly generated at the winding zone of the machines. Pneumafil's design delivers a smaller quantity of clean conditioned air to the area underneath the machines, which then passes over the sliver entering the rotor boxes. Approximately half the air enters the rotor box at a consistent condition of lower temperature and higher relative humidity than it would have been had it been delivered from above. The remaining portion of conditioned air passes up and over the winding zone. This conditions the yarn as it is wound onto the package while simultaneously absorbing heat radiated from the machine and dust generated by the winding process. This warm, contaminated air is then collected by an overhead return air system, passes through a central filter, and ultimately returned to the air conditioning system or exhausted to the outside as determined by an automatic control system. |
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