pressure-equalizing pipe

Pipe tee is a kind of indispensable pipe fitting for the pressure pipeline system.

三通是压力管道系统中不可缺少的管道元件,但国内对存在未焊透缺陷的三通研究很少.

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The pressure test is over. the pressure, dismantle the pipe and check the inside the pipe.

压力试验通过了, 把压力放掉, 拆开管子,检查管子内部.

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Frugal formula can be used to calculate the pipe pressure loses of extractive steams, and to diagnose problems of extractive steam pipes.

弗留格尔公式可用于确定变工况下抽汽管道压损值和诊断抽汽管道的故障。

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Meanwhile, the MHD pressure drop of test pipe was calculated using of existing theoretical formula. And then, the computation results and the numerical simulation results would be compared with each other, and results show that the circular and square pipes can meet the test requirements.

同时利用现有的理论计算公式对测试段的MHD压降进行了理论计算，进而与数值模拟结果进行了对比分析，结果显示圆形和方形管道均可满足实验要求。

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In chapter 2, according to the theory of strength of steel wire and plastic along with the result of hydraulic pressure burst test and short-term hydraulic pressure strength test, we calculated the strength of steel framed polyethylene plastic pipe and determined the principial working pressure.

第二章是根据传统的钢丝和塑料的强度理论以及静液压爆破试验、短期静液压强度试验结果，对钢骨架塑料复合管进行强度计算及工作压力的初步确定。

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When the pressure is greater than the standard of the plastic pipe, the pipe will break, slurry and cement will escape from the pipe and pollute the mine.

当料浆的自然压力大于塑料管的耐压值后，便可使塑料管破管，从而使生产中断，浪费大量水泥、尾砂，并造成井下污染。

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A mathematical model of the unsteady flow pipe section has been built up while CWS is transported in a long pipe. By solving the model, length of the unsteady flow pipe section, pressure gradient at every cross-section and the gross energy losses can be predicted.

建立了高浓度水煤浆长距离管道输运中非稳定段里的数学模型，对模型的求解可以预测非稳定段长度、压力梯度及总的压力损失。

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Some problems, such as additional pressure, settlement of high-rise buildings, thermal compensation of risers, gas metering, safety measures in the design of indoor gas pipe in high-rise buildings are discussed.

探讨了高层建筑室内燃气管道设计中附加压力、高层建筑沉降、立管热补偿、燃气计量、安全措施等问题。

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A Simple Pressure& Testing Device for Steel Pipe

简易钢管试压装置

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Thermal expansion pipe, CS type ware, it is by the expansion set, pressure plate and telescopic combination to body.

热力管道伸缩器型号CS型，它是由伸缩套、压盘和伸缩体组合而成。

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