聚氨酯泡沫塑料保温管供应厂家报价_供应

聚氨酯泡沫塑料保温管供应厂家报价

发布时间:2018-07-05 08:51:30 产品编号:GY-5-195657138 分享

价格:12.00/米
起订:12米
供应:100000米
发货:3天内
信息标签:聚氨酯泡沫塑料保温管供应厂家报价,供应,建筑、装饰、房地产,保温、隔热材料

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聚氨酯泡沫塑料保温管；

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">管道的热膨胀是热力管道设计计算中首先要考虑的因素。工作钢管的热膨胀量下式计算：

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　△L ＝αL(t-to)

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　式中：△L 管道热膨胀量 M

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　　α　钢材的线膨胀系数 m/(m ℃)

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　　L　管道的长度 m

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　　t 　管道的工作温度 ℃

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　　to　管道的安装温度 ℃

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　例 1 ：DN200 直埋管道，工作钢管为中 219 × 6 ，夕套钢管中 480 × 6 ，硅酸铝离心玻璃棉复合保温层厚度 110mm ，输送过热蒸汽压力 1.6MPa ，温度 350 ℃ ，管道安装温度 20 ℃ ，求每米管道的热膨胀量。

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　查表得钢材的线膨胀系数α为 11.2 × IO-6m ／( m ℃)，代入公式( 1 )，

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　　△ l ＝11.2×IO-6 × I ×( 350 － 20 )

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　　　　＝ 0.037 m

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　即每米管道热膨胀量为 3.7mm 。

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">五、直埋管道的热损失及外套管外表面温度计算：

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px"> 直埋管道的热损失按下式计算：

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">式中：q：单位长度散热损失 W/m

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　　t：蒸汽温度 ℃

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　　t0：管中心深处土壤的自然温度℃

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　　λ1：保温层及空气层的综合导热系数 W/(m℃ )

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　　λ2：土壤的导热系数 W/(m℃ )

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　　D1：工作钢管内径 m

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　　D2：外套管内径 m

portant; word-wrap: break-word; white-space: pre-wrap; orphans: 2; color: rgb(51,51,51); font-size: 12px; font-weight: normal; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px">　　　h：管中心至地面深度 m

联系方式

公司: 廊坊鑫大保温材料有限公司
状态:离线发送信件
姓名:徐经理(先生)
职位:经理
电话:0316-8068199
手机:15803263684
地区:河北-廊坊市
地址:廊坊市大城县

邮编:065900
QQ:247887806
商铺:http://m.ceoie.com/yanyaru1/

去廊坊鑫大保温材料有限公司怎么走？上图中的红点是廊坊鑫大保温材料有限公司在廊坊市的具体位置标注，操作左上角地图工具可以放大缩小哦。

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