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"up" : ""; if (i == curr) { cont.style.display = "block"; } else { cont.style.display = "none"; } } } </script> </div> </div> </div> </div> <!--------head结束----------> <div id="main"> <!--------内容开始----------> <div class="column"> <div class="column_l"> <div class="det"> <div class="det_title"> <ul> <li class="det_title_name">河海大学泳池恒温热泵热水工程</li> <!-- <li class="det_title_from">来源:<span>新华社</span></li> --> <li class="det_title_time">2015-09-30</li> </ul> </div> <div class="det_title_fenxiang"> <div class="fenxiang"> <!-- JiaThis Button BEGIN --> <div class="jiathis_style_32x32"> <a class="jiathis_button_weixin"></a> <a class="jiathis_button_tsina"></a> <a class="jiathis_button_cqq"></a> <a class="jiathis_button_qzone"></a> <a href="http://www.jiathis.com/share" class="jiathis jiathis_txt jiathis_separator jtico jtico_jiathis" target="_blank"></a> <a class="jiathis_counter_style"></a> </div> <script type="text/javascript" > var jiathis_config={ summary:"", shortUrl:false, hideMore:false } </script> <script type="text/javascript" src="http://v3.jiathis.com/code/jia.js" charset="utf-8"></script> <!-- JiaThis Button END --> </div> <div class="huifu"></div> </div> <div class="mess_text"><p><strong>一、项目简介</strong></p> <p>本工程项目单位是位于江苏省南京市的一所高等院校,河海大学。河海大学是一所拥有百年历史,以水利为特色,工科为主,多学科协调发展的教育部直属全国重点大学。该工程为河海大学校内露天泳池项目,配置天舒空气能热泵热水机组,实现全年泳池恒温。该项目自08年完成至今,6年来运行良好。</p> <p><strong>二、项目名称:</strong>河海大学泳池恒温热泵热水工程</p> <p><strong>三、地区气温</strong></p> <p>所属地区------------------华东</p> <p>日平均气温稳定通过&gt;=10℃的天数为-----225天</p> <p>全年平均气温---------------15.3℃</p> <p>夏季平均气温(7月)--------28.0℃</p> <p>冬季平均气温(1月)--------2.0℃</p> <p><strong>四、项目系统要求</strong></p> <p>泳池恒温要求:</p> <p>该游泳馆泳池为标准泳池(50m*25m),约2500吨水。根据国际泳联规定,泳池的水温应该控制在25℃到28℃之间,该系统温水设定为26℃;</p> <p><strong>五、机组配备</strong></p> <p>天舒空气能热泵热水机组DKFXRS-64II03,5台;</p> <p><strong>六、天舒产品优势</strong></p> <p>天舒泳池恒温型空气能热泵产品通过将热泵机组直接接入泳池的水循环系统,机组对泳池水进行循环加热。在选型时需考虑泳池恒温时水温比制生活热水要求低的特点,进行机组的系统匹配,在相同等的输入功率情况下,机组制热量大大增加,COP值更高。另外系统采用PLC可编程控制,根据气候、环境温度及池水温度自动调节热泵加热时间,使用费用极低。</p> <p><strong>七、泳池恒温系统设计计算</strong></p> <p>(一)泳池恒温系统设计计算</p> <p>1.泳池恒温所需热量为下列各项耗热量之和:</p> <p>①池水表面蒸发损失的热量</p> <p>②泳池的水表面、池底、池壁、管道和设备等传导所损失的热量</p> <p>③补充新鲜水加热所需要的热量</p> <p>2.泳池水表面蒸发损失的热量计算:</p> <p>Qz=&alpha;&middot;r&middot;A(0.0174Vf+0.0229)(Pb-Pq)(760/B)</p> <p>式中:Qz&mdash;&mdash;泳池的水表面蒸发损失的热量(kJ/h);</p> <p>&alpha;&mdash;&mdash;热量换算系数,&alpha;=4.1868;</p> <p>r&mdash;&mdash;与泳池的池水温度相等的饱和蒸汽的蒸发气化潜热(kcal/kg),1kcal/kg=4.1868kJ/kg;</p> <p>Vf&mdash;&mdash;泳池的水表面上的风速(m/s),一般情况下泳池的水表面风速Vf=0.2-0.5m/s;</p> <p>Pb&mdash;&mdash;与泳池的水温相等的饱和空气的水蒸气分压力(mm&middot;Hg),查得水温26℃时,为25.2mm&middot;Hg;</p> <p>Pq&mdash;&mdash;泳池的环境空气的水蒸气分压力(mm&middot;Hg),查得气温26℃时,为15.2mm&middot;Hg;</p> <p>A&mdash;&mdash;泳池的水表面面积(㎡);</p> <p>B&mdash;&mdash;当地的大气压力(mm&middot;Hg)。</p> <p>由上述公式得:Qz=4.1868&times;582.5&times;1250&times;(0.0174&times;0.2+0.0229)&times;(25.2-15.2)&asymp;804198kJ/h</p> <p>所以泳池水表面蒸发损失的热量:Q=804198kJ/h,即223.39kw;</p> <p>3.泳池的水表面、池底、赤壁、管道和设备等传导所损失的热量,应按泳池水表面蒸发损失热量的20%计算确定:44.68kw;</p> <p>4.补充新鲜水加热所需的热量:</p> <p>Qb=&alpha;&middot;qb&middot;r(tr-tb)/t</p> <p>式中:Qb&mdash;&mdash;泳池的补充水加热所需热量(kJ/h);</p> <p>&alpha;&mdash;&mdash;热量换算系数,&alpha;=4.1868;</p> <p>r&mdash;&mdash;水的密度(kg/L);</p> <p>qb&mdash;&mdash;泳池的新鲜水的补充水量(L);</p> <p>tr&mdash;&mdash;泳池的池水设计温度(℃);</p> <p>tb&mdash;&mdash;泳池的补充水的温度(℃);</p> <p>t&mdash;&mdash;加热时间(h);</p> <p>由公式可得:4.1868&times;125&times;1000&times;(26-5)/24&asymp;457931kJ/h,即127.2kw;</p> <p>补充新鲜水加热所需的热量为127.2kw;</p> <p>5.泳池恒温总耗热量计算:223.39kw+44.68kw+127.2kw=395.27kw,即泳池恒温总耗热量约为395.27KW。</p> <p>6.泳池初次加热耗热量</p> <p>游泳池初次加热时间一般小于48小时,考虑在环境温度较高的时候对泳池进行初次加热;冷水温度15℃时的气候条件下加热,加热池水的小时耗热量为Q=2500m3&times;1000&times;(26-10)/(48&times;860)&asymp;969KW,由于水边面蒸发和内壁导热每小时估算热耗为395KW&times;60%=237KW。因此泳池初次加热耗热量为:969KW+237KW=1206KW。</p> <p>泳池初次加热耗热量相对于常态的机组工作泳池所需热量是非常大的,为节能和节约成本,初次加热耗热量可使用电辅助加热满足所需热量。</p> <p>综合考虑初期投资、运行费用及使用保障,系统初步选用5台DKFXRS-64Ⅱ03型空气能热泵机组,查机组样本可知:普通工况下,DKFXRS-64Ⅱ03热泵机组制热量约为84KW,所以所需机组台数为:395kw/84kw&asymp;4.7,即5台热泵机组满足恒温需求。</p> <p>(二)泳池恒温系统运行费用计算:</p> <p>①春秋季183天,平均环境温度15℃,平均水温10℃;夏季92天,平均环境温度28℃,平均水温20℃;冬季90天,平均环境温度10℃,平均水温5℃。</p> <p>②电价0.5元/kWh,电热值860kcal/kWh,热效率95%。</p> <p>③泳池恒温小时耗热量:春秋季304kW/h,夏季282kW/h,冬季395kW/h。</p> <p>④环境温度15℃时,热泵机组COP值5.0。环境温度28℃时,热泵机组COP值6.25。环境温度10℃时,热泵机组COP值4.7。</p> <p>1.空气源热泵系统运行费用</p> <p>按照空气能热泵热水机组20小时工作计算费用:</p> <p>①春秋季:304&times;20&divide;5&times;0.5&times;183=111264元</p> <p>②夏季:282&times;20&divide;6.25&times;0.5&times;92=41510.4元</p> <p>③冬季:395&times;20&divide;4.7&times;0.5&times;90&asymp;75638元</p> <p>④全年运行费用:22.84万元</p> <p>2.电锅炉系统运行费用</p> <p>按照实际使用情况,使用电锅炉系统的游泳馆开放时间通常比较短,根据南京游泳馆一般开放时间,按照夏季开放12小时,春秋季开放8小时,冬季开放5小时计算:</p> <p>①春秋季:304&times;8&divide;95%&times;0.5&times;183=234240元</p> <p>②夏季:282&times;12&divide;95%&times;0.5&times;92&asymp;163857元</p> <p>③冬季:395&times;5&divide;95%&times;0.5&times;90&asymp;93553元</p> <p>④全年运行费用:49.17万元</p> <p>可知,天舒空气能热泵热水机组比电锅炉系统每年节省运行费用26.33万元。天舒空气能热泵热水机组设计使用寿命为15年,保守按照10年使用寿命算,使用天舒空气能热泵热水机组比电锅炉系统共计节省约263万元。</p> <p><strong>八、项目图片:</strong></p> <p style="text-align: center">&nbsp;<img width="450" height="299" alt="" src="http://www.chinahvacr.com/file/upload/201509/30/16-18-04-22-397040.jpg" /><br /> &nbsp;</p> <p style="text-align: center"><img width="450" height="252" alt="" src="http://www.chinahvacr.com/file/upload/201509/30/16-18-11-63-397040.jpg" /><br /> &nbsp;</p> <p style="text-align: center"><img width="450" height="300" alt="" src="http://www.chinahvacr.com/file/upload/201509/30/16-18-18-53-397040.jpg" /><br /> &nbsp;</p> <p style="text-align: center"><img width="450" height="300" alt="" src="http://www.chinahvacr.com/file/upload/201509/30/16-18-24-77-397040.jpg" /></p> <p style="text-align: center">&nbsp;</p> <p><strong>九、结论</strong></p> 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