【正文】 天津市天馨苑小區(qū) 36樓采暖工程設(shè)計 Heating Project design for Building in Tianxinyuan District of Tianjin 摘 要 本次設(shè)計為天津市天馨苑小區(qū) 36樓采暖工程設(shè)計和 小區(qū) 換熱站 工藝 設(shè)計。其中采暖設(shè)計包括熱負(fù)荷計算 ，采暖系統(tǒng)方案的確定和采暖系統(tǒng)水力計算；換熱站設(shè)計包括換熱站規(guī)模的確定 、設(shè)備 的 選型計算和換熱站的工藝布置及相關(guān)計算。 36樓的建筑面積為 7863㎡ ，采暖熱負(fù)荷 114kW， 采暖系統(tǒng)形式為地板輻射采暖， 熱媒設(shè)計 參數(shù)為 45/35℃，戶內(nèi)盤管管材 選用管徑為 20mm的聚丁烯（ PB）管 。換熱站 供熱規(guī)模為 13萬㎡ ， 設(shè)計總負(fù)荷為 。一次熱網(wǎng)熱水由地?zé)峁嵴咎峁?設(shè)計參數(shù)為 71/38℃，二次網(wǎng)熱水 參數(shù)為溫度 45/35℃。換熱站內(nèi) 設(shè)置 兩組 BBR50型 板式換熱器 ，每組 承擔(dān) 70%的 總 熱負(fù)荷；循環(huán)水泵選擇 三臺 ，型號為 KL(W)125160A，兩用一備；補水泵選擇 兩臺 ，型號為KL(W)40125。在設(shè)計過程中，查閱了大量的參考資料，采用了目前常用的設(shè)備和新的技術(shù)，并對建筑節(jié)能 給予關(guān)注。 關(guān)鍵詞： 集中供熱； 地板輻射采暖 ；換熱站；設(shè)計 ABSTRACT It is a design for Tianjin tianxinyuan 36 Building heating engineering ,including the design for the Tianjin tianxinyuan 36 Building heating project and district heating exchange station, The heating design contains heating heat load calculations, heating systems and the heating systems to determine the program of hydraulic calculation。 Heat exchange station design takes brief introdunction ,exchange station equipment selection, process of calculation and heat transfer station layout and calculations. 36 floor covers the area of 4732 square meters, heating loads of 100kW, thermal media set parameters of 45/35 ℃ , heating system in the form of radiant floor heating, pipe diameter is 12mm. The total heat load of station design is , heat transfer area covers 12 million square meters, the heating work design parameters for the heating medium is 71/38 ℃ , the second work parameters for the heating medium temperature is 45/35 ℃ . Heat transfer stations choose two type BBR50 plate heat exchanger from energysaving Equipment Co. Ltd Beijing Hua Yixin, each takes 70% of the heat load。 three KL(W)125160Atype circulating pump from Kaili water pump, two KL(W)40125type pumps from Kaili Third Pump. In design process,I have looked up a large number of references, using the monly used equipment and new technology, and pay much attention to the building energy conservation. Key words: central heating。 floor heating system。 heat exchange station。 design 目 錄 第 1 章 設(shè)計概況 .............................................................................................. 1 設(shè)計題目 ..................................................................................................................................................................1 設(shè)計任務(wù)及要求 ......................................................................................................................................................1 設(shè)計原始材料 ..........................................................................................................................................................2 ..................................................................................................................................................................3 第 2章 采暖負(fù)荷計算 ......................................................................................... 4 采暖系統(tǒng)設(shè)計熱負(fù)荷 .............................................................................................................................................4 圍護結(jié)構(gòu)的基本耗熱量計算 ..................................................................................................................................5 圍護結(jié)構(gòu)朝向修正耗熱量的計算 .........................................................................................................................6 冷風(fēng)滲透耗熱量的計算 ..........................................................................................................................................7 冷風(fēng)侵入耗熱量的計算 ..........................................................................................................................................8 熱負(fù)荷計算舉例 ......................................................................................................................................................8 第 3章 采暖方式的比較與選擇 ............................................................................ 10 集中熱力網(wǎng)供熱 ................................................................................................................................................... 10 小區(qū)鍋爐供暖 ....................................................................................................................................................... 10 分戶采暖 ............................................................................................................................................................... 10 采暖末端方式的選擇 ...........................................................................................................................................11 第 4章 地板輻射采暖設(shè)計 .................................................................................. 13 采暖盤管的選擇與布置 ..................................................................................................................................... 13 采暖盤管設(shè)計計算 ............................................................................................................................................. 14 水力計算 ............................................................................................................................................................... 15 第 5章 換熱站方案確定 ...................................................................................... 18 換熱站概述 .......................................................................................................................................................... 18 換熱站設(shè)計要點 ................................................................................................................................................. 19 換熱器的分類 ........................................................................................................................................................ 20 第 6章 換熱器的選擇