Duct type air conditioning ventilation system

1:

• A duct type air conditioning ventilation system in which an outlet is provided in a room and a heat resistant space in a high airtight and high heat resistant building,
• an air conditioning unit and the outlet provided in the building are connected to each other through an air conditioning duct,
• the air conditioning duct is formed in the heat resistant space,
• conditioned air which is cleaned by the air conditioning unit is created,
• the cleaned conditioned air flows from the air conditioning unit to the outlet, and
• a wind passage from the room and the heat resistant space where the outlet is provided and which returns to the air conditioning unit is a circulation passage, wherein
• a suction portion, an air conditioning portion, a mixing portion and a plurality of air-blowing portions are provided in this order in the air conditioning unit from an upstream side toward a downstream side of the circulation passage,
• the suction portion, the air conditioning portion and the plurality of air-blowing portions are provided with a filter portion A, a filter portion B and a filter portion C, respectively,
• air sucked from the suction portion through the circulation passage is cleaned by the filter portion A,
• a portion of the air sucked from the suction portion is air-conditioned and cleaned by the air conditioning portion and the filter portion B,
• blown-out air which is blown out from the air conditioning portion and a remaining portion of the portion of the air sucked from the suction portion are mixed, by the plurality of air-blowing portions, with each other in the mixing portion located upstream of the filter portion C,
• conditioned air within 5 K at the time of a cooling operation and within 10 K at the time of a heating operation are created with respect to temperature of air around the air conditioning duct,
• the conditioned air is further cleaned by the plurality of air-blowing portions and the filter portion C, the cleaned conditioned air is blown into the air conditioning duct toward the outlet, thereby air-conditioning and air-cleaning the room and the heat resistant space through the circulation passage,
• the air conditioning ventilation system further includes an outdoor air introduction passage for introducing outdoor air into the circulation passage or the air conditioning unit from outdoor, the outdoor air introduction passage is provided with an introduction fan and a filter, and the introduced outdoor air is cleaned,
• the air conditioning ventilation system further includes an indoor air exhausting passage for discharging air in the building to outdoor from any one of the circulation passage, the room which is not provided with the outlet, and the heat resistant space which is not provided with the outlet, and
• the indoor air exhausting passage is provided with an exhaust fan, and at least one of a portion of air in the circulation passage and a portion of the air which is accumulated in the building is discharged to outdoor.