【正文】 ction into high and low two area. The design of the main task of low temperature hot water floor radiant heating situation at home and abroad, and the total load for 472 kW, because floor radiant heating indoor design temperature higher than those temperature, so will the results calculated from 95%, in order to meet the energy requirements. In the pipeline, choose the PE pipe into the double form laid means, in each installation temperature control valve and heat meter, the user to temperature control hot box of household metering. The hydraulic calculation of pipe works to determine diameter, according to the heating work hydraulic calculation results select users system and heating work connections and user entrance device, determine the heat exchanger station thermodynamic calculation a nd the equipment selection, etc. The design of the work used thermal hot water, the s provided 95/75 ℃ hot water. On the east side of the building to build a heat exchanger station, heat supply and return water temperature after 40/30 ℃ , heat transfer station equipment including heat exchanger, the circulating water pump, water supply pump, the decontamination, heating water for water softener, the constant pressure water supply pump frequency conversion by the constant pressure form, heating water temperature automatic control requirements. Heat exchanger station prepared with to pact structure, rational layout, economical durable requirements. Finally draw construction drawings. Keywords:Radiant floor heating Heat exchanger station Household metering Central heating I 目 錄 緒 論 ......................................................................................................................................1 設(shè)計(jì)的目的和意義 .........................................................................................................1 工程概述 .......................................................................................................................1 國內(nèi)外研究現(xiàn)狀 ............................................................................................................1 低溫?zé)崴匕遢椛洳膳瘒鴥?nèi)研究現(xiàn)狀 .......................................................................1 低溫?zé)崴匕遢椛洳膳瘒鴥?nèi)研究現(xiàn)狀 .......................................................................2 第 1 章 設(shè)計(jì)原始資料和依據(jù) ...................................................................................................3 設(shè)計(jì)原始資料 ................................................................................................................3 設(shè)計(jì)資料 .................................................................................................................3 設(shè)計(jì)任務(wù) .................................................................................................................3 第 2 章 采暖方案的確定 ..........................................................................................................4 采暖方案的比較 ............................................................................................................4 地板輻射式采暖 ......................................................................................................4 家用中央空調(diào)系統(tǒng) ...................................................................................................5 家用電鍋爐 .............................................................................................................5 電熱膜采暖 .............................................................................................................5 共用立管的布置 ............................................................................................................6 采暖方案的選取 ............................................................................................................6 地板輻射供暖的分類： ..................................................................................................7 第 3 章 采暖負(fù)荷計(jì)算 .............................................................................................................8 供暖設(shè)計(jì)熱負(fù)荷的計(jì)算 ..................................................................................................9 圍護(hù)結(jié)構(gòu)的耗熱量 ...................................................................................................9 冷風(fēng)滲透耗熱量 .......................................................................................................... 10 冷風(fēng)侵入耗熱量 .......................................................................................................... 11 戶間穿熱耗熱量 .......................................................................................................... 11 熱負(fù)荷計(jì)算舉例 .......................................................................................................... 11 第 4 章 地板輻射采暖設(shè)計(jì) .................................................................................................... 13 地面散熱量 ................................................................................................................. 13 地面平均溫度 .............................................................................................................. 15 采暖盤管材料與敷設(shè)形式的選擇 .................................................................................. 16 管間距 ........................................................................................................................ 18 盤管設(shè)計(jì)計(jì)算 .............................................................................................................. 19 第 5 章 水力計(jì)算 .................................................................................................................. 20 水力計(jì)算的目的 .......................................................................................................... 20 II 水力計(jì)算的任務(wù) .......................................................................................................... 20 計(jì)算公式 ...................................................