APPARATUS FOR AIR CONDITIONING DIRECT AIR SIDE TYPE

• Main Author: JANG, DAE IN
• Format: Patent
• Language: English; Korean
• Published: 01.02.2017
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

Disclosed is an air conditioning apparatus using direct outdoor air capable of mixing outdoor air with air in a hot zone and supplying the outdoor air so that indoor temperature and humidity are maintained and outdoor air cooling is performed even when the humidity is higher than absolute humidity of a cold zone, enthalpy is lower than the enthalpy of the hot zone, and the temperature and the humidity are lower than the absolute humidity in the maximum permissible temperature and humidity. The air conditioning apparatus using direct outdoor air comprises: a mixing chamber communicating with an outdoor air inlet; an outdoor air damper installed between the outdoor air inlet and the mixing chamber; an inner circulation chamber installed at a lower portion of the mixing chamber to communicate with the mixing chamber; a third bypass damper installed between the mixing chamber and the inner circulation chamber; a ventilation chamber communicating with the mixing chamber; a first bypass damper installed between the mixing chamber and the ventilation chamber; a cooling coil and a humidifier communicating with the inner circulation chamber and installed at a lower portion of the ventilation chamber; at least one air supply fan and air supply grill communicating with a lower portion of the ventilation chamber; an air supply unit having a second bypass damper between the air supply unit and the ventilation chamber; and an air exhaust unit receiving exhaust air of a computer room working space in which a server rack being in contact with the air supply grill is installed, and including an indoor air exhaust unit having an air exhaust fan and an air exhaust damper communicating with the ventilation damper and installed at the other side of the an upper portion of the air exhaust unit to discharge indoor air. 콜드존의 절대습도기준보다 높고 핫존의 엔탈피보다 낮으며 콜드존의 최대허용 온도 및 습도에서의 절대습도보다 낮은 구간에서도 실내 온습도를 유지하며 외기냉방이 가능하도록 외기와 핫존의 공기를 혼합하여 공급하도록 한 직접 외기 이용 방식의 항온항습장치가 개시된다. 직접 외기 이용 방식의 항온항습장치는 외기유입구와 연통되는 혼합챔버; 상기 외기유입구와 혼합챔버의 사이에 설치된 외기댐퍼; 상기 혼합챔버의 하부에 연통 설치된 내부순환챔버; 상기 혼합챔버와 내부순환챔버의 사이에 설치된 제3 바이패스댐퍼; 상기 혼합챔버와 연통된 환기챔버; 상기 혼합챔버와 환기챔버의 사이에 설치된 제1 바이패스댐퍼; 상기 내부순환챔버와 연통되어 설치되고 환기챔버의 하부에 설치된 냉각코일 및 가습기; 상기 환기챔버의 하부에 연통 설치된 적어도 하나의 급기팬 및 급기그릴; 상기 환기챔버와의 사이에 제2 바이패스댐퍼를 구성한 급기부; 및 상기 급기그릴에 면한 서버랙이 설치된 전산실 작업공간부의 배출공기를 공급받도록 구성되고, 상기 환기댐퍼와 연통되며 상부 타측에 내부의 공기를 배출하는 배기댐퍼를 구비한 내기 배기구와 배기팬이 형성된 배기부를 포함한다.