Analysis of low temperature hot water household metering heating system common riser ' s hydraulic balance 低温热水分户计量采暖系统共用立管水力平衡分析
The backflow preventer must be supported and is not designed to carry full weight of the stand pipe 防回流阀必须有所支撑，不能用于承载立管的全部重量。
The capability of the proposed model is validated by model tests of risers in stepped and in sheared currents 利用近期立管模型在阶梯状分布流以及剪切流中的涡激振动响应实验测量数据，验证了该模型的有效性。
The original sovent fitting grants a flush performance of a single stack drainage system of 8 . 7l s without additional primary ventilation pipe 使用吉博力苏维脱管件，无需另外的通风管立管，其立管最大排水能力可达8 . 7升秒。
When the temperature difference of the supply water stand pipe or back water stand pipe of the water heater is large , itcan affect the water temperature 6过水热在暖气正常情况下，供水立管或回水立管温差大时，将影响出水温度
It shows that the modal shape and mode frequency are highly coupled with the viv response of a marine riser with low mass ratio 该模型的计算结果表明，立管的模态振型、模态频率与涡激振动响应高度耦合，并且对于低质量比的情况尤为明显。
In vertical to install pipeline if two nearby one in charge ofed to prop up in executive hold a connection thing in going on , in this way , mainly setting up and managing can emerge and expand or shrink vertically between two floors 如果在主管的两个支管的附近个装一个连接物，这样，主立管就可以在两个楼板之间竖直产生膨胀或收缩。
Weiss kessel anlagen maschinenbau gmbh is well - known not only in dillenburg with silos of steel , vertical - tube radiant boilers and boiler plants as well as with long - distance heating plants , dust extracting installations and combustion chamber boiler , but also with further offers , like thermal oil , heat plants and / or mechanical boiler furnaces , air and dust extraction technology and steam boilers and steam generators Weiss kessel anlagen maschinenbau gmbh是一家生产不同尺寸燃烧室,除尘装置,远程供热装置,锅炉设备,热油,钢板结构青贮塔,立管锅炉,热设备,蒸气锅炉和蒸气机,机械燃烧锅炉,空气-除尘技术的企业。
According to the types , height and fireproof grade of the buildings , four basic ringed arrangements are brought up , namely the ringed arrangemensts of branch lines , the ringed arrangements of cross mains , the ringed arrangements of feed mains and the ringed arrangements of fire waterhead . on the basis of analyzing the means , characteristic and applicability of the four basic ringed arrangements , several practicality ringed arrangements are brought up , namely the ringed arrangements of branch lines and cross mains , the ringed arrangements of cross mains and feed mains , the ringed arrangements of branch lines and feed mains , the vertical ringed arrangements of feed mains and the ringed arrangements of sprinkler system in the abnormity buildings 根据建筑物的类型、高度和防火等级等因素，提出配水支管环状、配水干管环状、立管环状和消防水源环状这四种基本环状形式，分析了四种环状管网的环状布置方法、特点和适用性。在此基础上又提出了支管与干管环状、干管与立管环状、支管与立管环状、立管竖向环状以及不规则区域环状等几种实用的环状形式。
