Moisture separator and air cycle system with the same

An air cycle system comprising;

• an outside air heat exchanger decreasing a temperature of compressed air by heat-exchanging externally supplied high-temperature compressed air with outside air;
• a turbine rotating by receiving compressed air discharged from the outside air heat exchanger, and rapidly decreasing a temperature and a pressure of the compressed air by passing the compressed air through a turbine blade and expanding the compressed air passed through the turbine blade;
• and
• a moisture separator receiving compressed air discharged from the turbine and generating dry cool air by eliminating moisture mist in the compressed air,
• wherein the moisture separator includes:
• a coalescer filter provided with a filter media formed of a fiber layer through which the compressed air discharged from the turbine is passed, primarily condensing moisture mist in the compressed air, and filtering foreign particles and a housing supporting the filter media,
• a wire mesh pad demister provided at a downstream of the coalescer filter to receive the compressed air passed through the coalescer filter and secondarily condensing moisture mist in the compressed air to separate moisture using gravity, and
• a fan is coaxially combined to the turbine to intake outside air, the turbine and the fan are combined to a turbine assembly housing, and the condensed water separated by the moisture separator is supplied to a cooling circuit of the turbine assembly housing to cool the turbine assembly housing and then sprayed to the outside air inlet of the outside air heat exchanger to exchange sensible heat and latent heat with the compressed air.

An air cycle system comprising;

• an outside air heat exchanger decreasing a temperature of compressed air by heat-exchanging externally supplied high-temperature compressed air with outside air;
• a turbine rotating by receiving compressed air discharged from the outside air heat exchanger, and rapidly decreasing a temperature and a pressure of the compressed air by passing the compressed air through a turbine blade and expanding the compressed air passed through the turbine blade;
• and
• a moisture separator receiving compressed air discharged from the turbine and generating dry cool air by eliminating moisture mist in the compressed air,
• wherein the moisture separator includes:
• a coalescer filter provided with a filter media formed of a fiber layer through which the compressed air discharged from the turbine is passed, primarily condensing moisture mist in the compressed air, and filtering foreign particles and a housing supporting the filter media,
• a wire mesh pad demister provided at a downstream of the coalesce filter to receive the compressed air passed through the coalesce filter and secondarily condensing moisture mist in the compressed air to separate moisture using gravity, and
• a de-icing control valve provided between the turbine and an external compressed air supply source,
• the de-icing control valve bypassing a part of the compressed air before the compressed air flows into the outside air heat exchanger to directly supply the compressed air to the turbine such that a temperature of the compressed air after passed through the turbine can be controlled not to fall below zero.