辦公樓中央空調(diào)設(shè)計 摘 要
本設(shè)計為天津市XX公司辦公樓中央空調(diào)系統(tǒng),擬為之設(shè)計合理的中央空
調(diào)系統(tǒng),為室內(nèi)工作人員提供舒適的工作環(huán)境。建筑共四層?總面積為
4446.9m2?首層凈高4.2m?其他三層凈高均為3.9m。要求采用空調(diào)夏季制冷
冬季供暖。設(shè)計的空調(diào)系統(tǒng)采用風(fēng)機盤管—新風(fēng)系統(tǒng),選用水冷機組制冷凍水
供冷?冬季依靠市政集中供熱采暖。
設(shè)計的內(nèi)容包括?選定合適空調(diào)系統(tǒng)的類型并確定設(shè)計方案?計算部分
也十分重要?例如?空調(diào)冷負荷的計算?空調(diào)系統(tǒng)的劃分與系統(tǒng)方案的確定?
冷源的選擇?風(fēng)系統(tǒng)的設(shè)計與計算?室內(nèi)送風(fēng)方式與氣流組織形式的選定?
水系統(tǒng)的設(shè)計、布置與水力計算? 風(fēng)管系統(tǒng)與水管系統(tǒng)保溫層的設(shè)計等內(nèi)容。
除此之外?還需要進行空調(diào)末端處理設(shè)備及機房輔助設(shè)備及的選型。需要結(jié)
合所選擇的空調(diào)系統(tǒng)的特點及辦公樓的建筑結(jié)構(gòu)選擇合適的空調(diào)機組及末端
設(shè)備?合理的布置吊頂內(nèi)風(fēng)管與水管的位置。并根據(jù)所選擇的空調(diào)機組選配
合適的輔助設(shè)備?冷凍水循環(huán)水泵?冷卻水循環(huán)水泵?開式水箱?冷卻水塔?
及相應(yīng)的水管風(fēng)管閥門等。

關(guān)鍵詞?辦公樓?中央空調(diào)?水冷機組?風(fēng)機盤管—新風(fēng)系統(tǒng)




THE CENTRAL AIR-CONDITION OF
OFFICIAL BUILDING

ABSTRACT The design of central air-conditioning system for the building of a Tianjin
company is aimed to get a comfortable working condition indoors. The total area
of the building is 4446.97 m2. The height of the first floor is 4.2 meters,and the
other three floor’heights are all 3.9 meters. The air-condition system is designed
to supply cool air in summer, and a fan coil units (FCUs)--fresh air system is
selected and central screw water chillers are used to provide the chilling water
needed. In winter, the municipal central heating system is used to supply heat and
keep official room warm.
Some of the main points in this design are given as follows:
To design an appropriate air-conditioning system for the building, the
overall analysis is important. This includes the calculation, such as cooling load
calculation, the estimation of system zoning; the design of air duct system and
calculation; the estimation of air distribution method and the selection of
relevant equipments; the design of water system and the analysis of its resistance
losses; the plan of the insulation of air duct and chilled water pipes; etc..
Meanwhile, equipment selection is also an essential part of the design. According
to the requirement, a fan coil units (FCUs)--fresh air system is appropriate.
Thus?the main process equipment, i.e. the chiller, the fan coil units, the
circulating water pumps, the cooling tower, are also determined in the design
considering their characteristics and working conditions.

KEY WORDS: official building, central air conditioning, cooling water chiller
fan coil units (FCUs)--fresh air system
目 錄 第一章 緒 論 ................................................................................................................. 1
第二章 系統(tǒng)方案的選擇確定 ..................................................................................... 3
第三章 工程概況 .......................................................................................................... 5
§ 3.1建筑特點 ....................................................................................................... 5
§ 3.2建筑相關(guān)資料............................................................................................... 5
§ 3.3室外設(shè)計參數(shù)............................................................................................... 6
§ 3.4室內(nèi)設(shè)計參數(shù)............................................................................................... 7
第四章 空調(diào)負荷計算 .................................................................................................. 8
§ 4.1圍護結(jié)構(gòu)瞬變冷負荷計算原理 ................................................................ 8
§ 4.1.1外墻和屋面瞬變傳熱引起的冷負荷 .............................................8
§ 4.1.2室內(nèi)傳熱維護瞬時冷負荷 ..............................................................8
§ 4.1.3外窗瞬變傳熱引起的冷負荷..........................................................9
§ 4.1.4設(shè)備散熱形成的冷負荷 ..................................................................9
§ 4.1.5新風(fēng)冷負荷 ...................................................................................... 11
§ 4.2辦公樓圍護結(jié)構(gòu)冷負荷計算 ................................................................... 11
§ 4.3各房間送風(fēng)方式的確定 ........................................................................... 14
§ 4.4 辦公樓新風(fēng)量和新風(fēng)負荷的確定 ......................................................... 15
§ 4.4.1新風(fēng)負荷計算舉例 .........................................................................15
§ 4.4.2辦公樓新風(fēng)冷負荷計算書 ............................................................16
第五章 風(fēng)機盤管加新風(fēng)系統(tǒng)選型計算............................................