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总说明1编制依据应的热水机组。根据设部设199813号文“关于印发《一九九八年国家筑标准设6热水机房的设置位置和热水供应系统的选择计编制工作计划》的通知”进行编制。6.1热水机房的设置位置2设计依据根据筑物的性质和总图布置,机房位置应在满足防火、环境保护和技术要2.1《筑给水排水设计规范》GB50015-2003求的情况下,进行综合比较,可设在筑物内,也可单独设置热水机房2.2《筑给水排水及采暖工程施工质量验收规范》GB50242-2002由于热水机组为常压设备,一般设在筑物内,可设在筑物屋顶,也可设2.3《城镇燃气设计规范》GB50028-93(2002年版)在地下室或中间楼层.机组设在地下室时,应征得消防部门的同意,除按有关防2.4《燃油、燃气热水机组生活热水供应设计规程》CECS134:2002火规范考虑防火措施外,还应设置报警、安全、通风排气、防爆、疏救等必要措2.5《燃油壳管式热水机组》CJ/T3084-1999施。3适用范围一个机房向若干栋筑供应热水时,机房可采用独立的地上筑:3.1本图集适用于民用筑的热水供应系统;工业筑的热水供应系统可参列系网6.2热水供应系统的选择个厂T照使用。6.2.1直接加热热水机组的水供应系统3.2本图集适用于常压热水机组,即机组壳体承受的压力<0.1mpa(表压).<>将热水机组及贮热水罐(箱)布置在屋顶热水机房时,采用上行下给的方式3.3本图集的真空热水机组适用海拔高度在1000以下的地区,若用于高原向用水点供应热水。其适用条件为:地区,请与设备生产厂家联系,并在订货时加以说明。1)屋顶层有设置机组、冷水箱、热水罐、日用油箱或燃气表房的合适位置:4编制主要内容2)机组被加热水的压力损失宜小于0.02Pa;4.1热水机组的选型与计算3)冷水的暂时硬度不宜大于150mg/L(以CaC03计).4.2燃油(气)热水机组的安装(包括组环式、壳管式、真空式)6.2.2间接加热热水机组的热水供应系统4.3电热式热水机组安装热水机组及热水罐(承压)或水加热器设在地下室或中间楼层,采用下行上4.5附属设备安装给或上行下给的方式供热水至用水点。适用条件同6.2.1中2)、3)5热水机组的选择何接加热系统热水机组及热媒水采用循环使用,为防止机组结垢,热媒水及应根据当地的能源情况,即天然气、城市滁气、燃油、电力的供应价格其补给水宜采用软化水.以及供应的可靠程度,经过综合对比,选择经济可靠的能源,按各种热水机组的性能、热效率、设备造价、运转成本、自动化程度、操作条件等选择相总说明(一)图集号05SS1213速素布网2Z沁N审核黄自菊功校对青睿书春畅设计堂申图脚面
7热水机组的布置与安装K一热水小时变化系数;7.1热水机组的布置:考虑到设备的安装、运行和检修耍求,除机组之问的qr-热水用水定额(L/cap·d或L/bed·d等),净距、机组与墙之间的净距应符合产品的规定外,并应符合:8.1.2定时供应热水的住宅、旅馆、医院及工业企业生活问、公共浴室、学校、7,1.1机组前方宜留出不少于机组长度2/3的空间.剧院、体有馆(场)等筑的集中热水供应系统根据卫生器具的小时热水量,按1.1.2机组后方宜留有0.8-1.5m的空间。公式8.1.2计算:7,1.3机组两侧通道宽度宜为机组宽度,且不得小于1.0m,Q=Σqb/1000(8.1.2)7,1.4机组最上部件(烟囱可拆卸部分除外)至安装房间顶部最低处的净距式中Q一设计小时热水量(mh);不得小于0.8m,qh一卫生器具的小时热水量(L/h),应换算成同一热水温度下的热水用量;7.1.5机组基础宜高出地面50~100mm;水泵基磁宜高出地面150mm,采用C20n。一同类型卫生器具数:砼浇筑。b一卫生器具同时使用百分数,住宅、旅馆、医院、疗养院病房、卫生间内1.2在机组水套顶部开孔(真空机组除外),接通气管与大气连通,确保机组浴盆或淋浴器可按70%~100%计,其它器具不计;但定时连续供水时问不应小处于常压下工作,该孔的当量直径按公式7:2计算>G,興筑于2血,工业企业生活间、公共浴室、学校、剧院、体育馆(场)等的浴室内的淋浴器和洗脸叁均按100%计,住宅一户带多个卫生问时,只按一个卫生问计算。式中%一机组的额定产热量(M),8.2热水系统设计小时耗热量的计算通气管上严禁装设阅门,保持机组排气畅通,设计小时耗热量可按公式8.2一2计算:当机组由冷水箱供水时,通气管的开端宜高出水箱最高水位0.3m,端部Qn =QC p:(t:-t )/3600(8.2-1)可装设180°朝下的倒U形弯头,用以排除机组内受热膨胀的水.式中Q一设计小时耗热量(k盼;8热水机组选型计算Q一设计小时热水量(m3/h);8.1热水系统设计小时热水量的计算C-水的比热,C=4187(J/kg·℃);8.1.1全日供应热水的住宅、别墅、招待所、培训中心、旅馆、宾馆的客房(不P,-热水密度(kg/儿);含员工)、医院住院部、养老院、幼儿园、托儿所(有住宿)等筑的集中热水t:一设计热水温度(℃);供应系统的设计小时热水量,按公式8.1.1计算:t红一设计冷水温度(℃),Q=mkaq:/24000(8.1.1)式中Q-设计小时热水量(m/h);m一用水计算单位数(人数cap或床位数bed等);总说明(二)图集号05SS121速罚2心2心干审楼黄自黄竖数劲校对肖客书济股计曲申固的酒
取p,1(kg/L),代入C值并换算单位后公式8.2-1成为公式8.2-2:可导出w,/ws=Kh(1-nT:/T)≥1.2(8.3.3-1)0a=1.1630(tr-t)=1.1630△t(8.2-2)当设计中出现X(1-nT1/T)<1.2时,议,取1.2w<>8.3机组产热量的计算3)对于全天可加热、全日供应热水的住宅、旅馆和医院:8.3.1当机组不配贮水罐(箱)直接供应热水时,或配半即热式(成快速式)设6=T/T,则由公式8.3.3-1可导出:水加热器问接供应热水时,其产热量按公式8.3.1计算:B<[1-(1.2/)]/n=Bax(8.3.3-2)W?4.187q△tp:(8.3.1)计算结果见表8.3,当设计的B大于Bax时,采用Bx计算产热量,。式中W一机组产热量(kW;表8.3大容积贮热容器Bx值qg一热水设计秒流量(L/s),人数m≤1002003005001000300060008.3.2当机组配贮热时问不大于0.5h的贮热水罐(箱)或半容积式水加热器Xh5.1204.1303.7003.2802.8602.4802.340供应热水时,其产热量W可按公式8.3.2计算:n1=0.75的Bax0.9000.9000.9000.8460.7740.6880.650(8.3.2)n2-0.85的B2x0.9000.8350.1950.7460.6830.6070.573W,=1.1630△t8.3.3当机组配贮热时问大于0.红的贮热水罐(箱或容积式水热器保应床位数m1503004501600750900>1200燕水时,其产热量,按公式83.3计算:]K6.8405.6104.9704.5804.3904.1903.900n1=0.75的Bax0.9000.9000.9000.9000.9000.9000.900w2=1.163(Q-nV:/T)△tp(8.3.3)n2=0.85的Bax0.9000.8350.8920.8680.8550.8400.814式中η一有效贮热容积系数,容积式水加热器n0.75,床位数m≤5075100200300500>1000导流型容积式水加热器n=0.85Xo4.5503.7803.5402.9302.6002.2301.950n1=0.75的Bax0.9000.9000.8810.7870.7180.6160.513V:一贮热水器容积(3);n2=0.85的Bax0.8660.8030.7780.6950.6330.5430.452T一设计小时耗热量持续时问(h),T=2-h.注:计算B:>0.900时,取0.900.1)当贮热水器容积V较大,同时设计小时耗热量持续时间T较短时,由公8.3.4机组台数的选择式8.3.3计算的产热量W,可能出现小于1.2倍设计平均小时耗热置W甚至为零医院筑不得少于2台,其它筑不宜少于2台,小型筑可设1台。重的情况,这个结果明显不合理。设计者应注意判断!要工程需设置备用机组,系统在任何时问内都必须在全充满水的条件下运行2)对于全天可加热、全日供应热水的系统可按公式8.3.3-1判断:所选工作机组的总产热量应≥计算的机组产热量,设V,=TQ式中T1一贮热时间(h),查6页表8.4.总说明(三)图集号05SS1215理一工.一2干申核黄自功校对商睿书家粉改计曲申西边酒
8.4贮热容积的选择半容积式水加热器时,按公式8.3.2并假设△1=50℃计算出热水机组产热量与热水机组配套设置的贮热水罐(箱)或水加热器的容积V:可按表8.4选择:规格对应的设计小时热水量Q.然后根搭最高日热水用水定额q:计算出对应的用热水单位数m(人数或床位数),最后根摇每个用水单位占有卫生器兵的热表8.4贮热容积V:(m3)》水当量数。和相应的设计秒流量公式计算出对应的设计秒流量qg:≤90℃热煤水间接加热或60℃热水直接输出加热设备1)qr=40~100L/cap·d、n0.5~1.0(当量/人)的住宅计算结果见工业企业淋浴室其它筑物8页表8.5.2-1.容积式水加热器或加热水罐(箱(1.0-1.2)Q(1.5-1.8)Q2)qr=60~160L/bed·d、n=0.5~1.0(当量/床)的旅馆计算结果见导流型容积式水加热器(0.5-0.6)Q(0.67-0.8)Q9页表8.5.2-2.3)qr=110-200L/bed·d,n,=0.5-1.0(当量/床)的医院计算结果半容积式水加热器(0.25-0.3)Q(0.33-0.4)Q见10页表8.5.2-3.尚莲紫8.5.3表8.5.2一1二3的使用方法如下:1由最高日共水定额4,和用热水单位数m(人数或床位数),查出热水2表中Q为热水票统设计小时热水量(?h).机组总产热量W,和相应的设计小时热水量Q,2)由最高日热水定额q、用热水单位数:(人数或床位数)和每个用水8,5各类筑物热水机组计算参数表单位占有卫生器具热水当量数:,查出系统的设计秒流量qg·8.5.1当最大用水时卫生器具的热水当量平均出流概率%在0.50~6.45%之问时,8.5,4当热水机组配置情况与8.5.2不同,或参数超出范配时,应按有关公式由7页表8.5.1可查出相应的系数c:值,然后按公式8.5.1计算出住宅热水计算管自行计算。段(或系统)的设计秒流量。qe=0.2851+oe(Ng-1)a49(8.5.1)式中qg一设计秒流量(L/s);州一计算管道的卫生器具热水当量总数,8.5.2当采用全日制供热水并配置贮热时问不大于0.5h的贮热水罐(箱)或总说明(四)困集号05SS121興尚理贸之?SCNE1工审核黄自数收幼校对肖馨书你超版计曲申图安酒6
住宅热水机组选用参数表表8.5.2-1机组产热量kW506010012015018021024035042050070010001200140015002000240028003000Q (m/h)0.861.031.722.062.583.103.614.136.027.228.6012.017.220.624.125.834.441.348.251.69:=40101131271343461577696822128915731921288642635200617366148818105821234613228人数9:=5081972002573434355336241011123214892196334840764819520070558466987710582cap9,=606781154200271343418504793101112221786271033483956426358317055823088189:=805060101131182234290343559696868128919212388288631234263520061736614q,=10040488197131171213257418533656101114891832219623883348407648195200n=0.5q,=401.561.772.562.893.363.774.164.535.746.397.108.7810.912.113.313.816.418.320.120.9的秒流q.=501.421.572.272.583.003.393.774.105.285.896.548.0910.211.412.513.115.717.619.420.3量9g9:=601.311.462.052.352.753.113.463.814.875.536.167.669.6510.912.012.615.117.118.919.7(L/s)9:=801.171.291.752.012.392.733.053.354.364.945.581.018.8910.111.211.814.416.318.119.09,-1001.071.19638124246253.04014.585.76.598.19.5610..213.815.817.618.59r=401.852.113033.413954.424825.316.727.478149.9712.213.514.715.317.919.821.522.3h。=0.75的秒流9,=501.681.862.673.033.533.964.394.766.076.757.469.14111.412.613.817.018.920.721.5量q,9:601.551.722.402.743.203.614.004.395.586.317.008.6010.12.01318.320.120.9(L/s)q:=801.371.522.042.332.763.143.513.834.965.596.287.819.8011.02.17.319.220.1q:=1001.251.391.882.092.452.813.153.424.525.145.787.319.2010.411.51214.816.718.519.49,=402.102.393.423.844.444.975.455.927.398.179.0211.013.314.716.016.619.221.022.823.6几o=19.=501.912.103.013.403.934.434.905.31的秒流6.747.478.2310.012.413.714.915.518.220.021.822.6量q:q:=601.751.942.703.073.584.044.464.896.176.967.699.3911.612.914.214.717.419.321.021.9(L/s)Q:=801.551.712.282.603.073.493.894.245.466.136.878.4910.611.913.113.716.418.220.120.9=1001.411.562.092.322.713.113.483.834.955.636.307.919.8811.112.312.915.517.519.320.2总说明(六)图集号05SS121审核黄自的韧胶对曲申国?设计肖睿书你熱8览一又.可$E无
表8.5.2-2旅馆热水机组选用参数表机组产热量k506010012015018021024035042050070010001200140015002000240028003000Q(m/h)0.861.031.722.062.583.103.614.136.021.228.6012.017.220.624.125.834.441.348.251.69,=605060101121151190235290496637795123517642116246926463527423349385291床位数q,-803845759111313616319032942754684713231587185219842646317437043968bedq,-100303660729110912714523531239763710121270148215872116254029633175qr=1202530506075911061211832353084967951012123513231764211624692646qr=16019233845576879911321602013295466958479301323158718521984n=0.59r=602.502.743.553.894.344.875.426.027.878.929.9712.414.816.317.618.221.023.024.825.7的秒流9,=802.182.373.063.373.764.124.514.876.417.318.2610.312.914.115.215.718.219.921.522.3量qzqx?1001.942.122.743.003.373.693.984.265.426.247.048.9211.212.613.614.116.317.819.219.9(L/s)q,=1201.771.942.502.743.063.373.643.894.785.426.201.879.9711.212.412.914.816.317.618.2q.=1601.541.792.182.372672.9234334.064.475.016.418.269.3210.310.812.914.115.215.79:=603.063.354.334.765.325.976.647.379.6410.912.215.218.219.921.522.325.728.230.431.5h=0.79:=802.672.903.754.605.057.858.9510.1的秒流12.615.717.218.619.322.324.426.427.3量qx9:=1002.372.603.353.674.134.524886.647.658.6310.913.815.416.717.219.921.823.624.4(L/s)9:=1202.172.373.063.353.1544.765.866.641.609.6412.213.815.215.718.219.921.522.39.=1601.892.082.672.903.273.134.975.486.147.8510.111.412.613.215.717.218.619.39,=603.543.875.025.506.146.891.668.511112.614.117.621.023.024.825.729.732.535.136.4几=1的秒流qr=803.083.354.334.775.325.836.386.899.0710.311.714.618.219.921.522.325.728.230.431.5量qg9=1002.743.003.874.244.775.225.636.021.668.839.9612.615.917.819.219.923.025.227.228.2(L/s)q:=1202.502.743.543.874.334.775.155.506.761.668.7711.114.115.917.618.221.023.024.825.79:=1602.182.403.083.353.774.124.444.775.746.321.099.0711.713.214.615.218.219.921.522.3总说明(七)图集号05SS121审树黄自勤组幼胶对曲申边冲酒设计肖睿书济愁9一乙一代0N平
表8.5.2-3医院热水机组选用参数表机组产热量k网506010012015018021024035042050070010001200140015002000240028003000Q(m/h)0.861.031.722.062.583.103.614.136.027.228.6012.017.220.624.125.834.441.348.251.6q:=1104149107135187242304362605756947134719242309269428863848461853875772g,=130354286109146192237289497616763114016281954227924423256390745584884床位数q,=1602834568411114117621536447559289813231587185219842646317537043968bedq:=1802530507096121148181311397517772117614111646176423522822329235279,=200232745578410612915426634544167710581270148215872116254029633175n=0.5q:=1101.811.982.933.293.874.404.935.386.967.788.7010.412.413.6114.715.217.519.220.821.5的秒流9,-1301.671.832.622.953.423.924.354.816.317.027.819.5511.412.513.514.016.117.719.119.8量qgq,=1601.501.652.122.592.983.363.754.155.406.166.888.4810.311.312.212.614.515.917.217.8(L/s)0,=1801.411.552002322,173,113,443.814.995.646.431.869.7010.611.511913.715.016.216.8q=2001.361.411.902.142592.91213.514,65.255,947369.2010.110.911.313.014.315.415.9q,=1102.222.423.584.024.745.396.046.598.529.5210.712.715.216.618.018.621.523.525.426.3no0.759:=1302.052.243.624.194.805.335.897.728.609.5711.714.015.316.517.119.821.123.424.2的秒流量qaq:=1601.832.022.593.654.114.605.086.611.558.4310.412.613.814.915.417.819.521.121.8(L/s)9=1801.731.903.393.814.214.666.116.901.889.6211.913.014.114.516.818.419.920.6q.=2001.661.80173.573.934.305.656.437.279.0111.312.313.313.815.917.518.919.5q:=1102.562.804.144.655.476.226.971.619.8411.012.314.717.519.220.821.524.827.229.430.4no-1的秒流9:1302.372.593.714.184.835.546.166.808.929.9311.013.516.117.719.119.822.825.027.028.09,=1602.122.332.993.674.214.755.315.877.638.729.7312.014.515.917.217.820.622.524.325.2量q,(L/s)=1802.002.192.833.353.924.404.875.387.057.979.1011.113.715.016.216.819.421.223.023.89,=2001.922.082.683.023.674.124.544.966.527.438.4010.413.014.315.415.918.420.221.822.5总说明(八)图集号05SS121蜀泰减试网77SNE工审樹黄自数你动校对曲率固边省设闭肖睿书名10
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