| 摘要 |
FIELD: railway transport; air conditioning systems. ^ SUBSTANCE: proposed method of delivery of plenum air and taking out of return air is provided by delivering cold plenum air by climatic plant under cooling conditions to upper level of car, and warm plenum air under heating conditions to lower level of car and taking out of circulating air from car. Under cooling conditions, delivery of cold plenum air is provided along upper air conduit to upper level, and taking of air from car is performed through side ducts from lower level of car, and under heating conditions, warm plenum air is delivered through side ducts to lower level of car and air is taken out through upper air conduit from upper level of car. Recirculation is provided by means of air distributor, and distributing of air provided in each cross section of car. Device is furnished with air distributor, air conduits are made for changing direction of air depending on ventilation mode. One air conduit is made in form of upper air conduit communicating with upper level of car, and the other, in form of side ducts communicating with lower level of car. Pressure air conduit of climatic plant, upper air conduit, side air ducts and recirculation lines are connected to air distributor. Air distributor is made for synchronous changing of direction of air in air conduits at changes of ventilation modes. ^ EFFECT: provision of required distribution of air in each cross section of car, uniform circulation of air in semiopen compartments, reduced energy consumption and improved sanitary conditions. ^ 5 cl, 7 dwg |
