⎝⎛星力捕鱼⎞⎠

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Industry Information
Installation of pressure gauge
2011-9-14 17:09:31

 

  有没有 安装正确,直接影响到测量结果的准确性和压力表的使用寿命。 The correct installation of the pressure gauge directly affects the accuracy of the measurement results and the service life of the pressure gauge . 安装时关键是测压点的选择 ,以下有几点注意事项 The key to the installation of the pressure gauge is the selection of the pressure measurement point . The following points should be noted :

测压点应 选在被测介质直线流动的管段部分,不要选在管路拐弯、分 死角 的地方; (1) The pressure measurement point should be selected in the section of the pipe where the measured medium flows in a straight line. Do not choose the place where the pipe is bent, branched or dead angle .

测量流体压力时,应 使取压点与流动方向垂直,取压管内端面与设备内壁平齐,不应 有凸出物或 毛刺 (2) When measuring the fluid pressure, the pressure taking point should be perpendicular to the flow direction, the inner end surface of the pressure taking tube should be flush with the inner wall of the equipment, and there should be no protrusions or burrs ;

测量液体压力时,取压点应 在管道下部,使导压管内不积存气体; 测量气体压力时,取压点应在管道上方,使导压管内不积存液体 (3) When measuring liquid pressure, the pressure taking point should be in the lower part of the pipeline so that no gas will accumulate in the pressure guiding tube; and when measuring gas pressure, the pressure taking point should be above the pipeline so that no liquid will accumulate in the pressure guiding tube ;

取压口到压力计之间应 装有切断阀,以 方便 检修压力计时使用。 (4) A shut-off valve should be installed between the pressure taking port and the pressure gauge , so as to facilitate the use of pressure timing inspection. 附近。 The shut-off valve should be installed near the pressure taking port . 加装凝液管,以防止高温蒸汽直接与测压元件接触。 When measuring the steam pressure, a condensate pipe should be installed to prevent high temperature steam from directly contacting the pressure measuring element. 对于有腐蚀性介质的压力测量,应 加装有中性介质的隔离罐。 For pressure measurement of corrosive media, an isolation tank with neutral media should be installed.