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                                                                                                                                                                                      1. 江蘇騰華測控技術有限公司

                                                                                                                                                                                        流量計廠家
                                                                                                                                                                                        當前位置:主頁 > 新聞中心 > 電磁流量計特別裝置

                                                                                                                                                                                        電磁流量計特別裝置

                                                                                                                                                                                        • 發表時間:2021-04-07
                                                                                                                                                                                        • 來源:管理員
                                                                                                                                                                                        • 人氣:

                                                                                                                                                                                        電磁流量計特別裝置:

                                                                                                                                                                                               ⑴大口徑傳感器的裝置

                                                                                                                                                                                               大口徑管道在大都場合下是埋在地下的,因而大口徑傳感器在裝置前應做好水泥地坑。是在給排水體系中常見的裝置方法。水泥地坑應有滿足的活動空間,側壁埋有敷設電纜的鋼管,上有蓋板防止雨淋,下有泄水管以免坑內積水而使傳感器浸水。為了拆裝便利,傳感器應放在墊腳上,且在下流側裝有活絡的彈性管。電磁流量計在地下水泥管污水排放體系中的裝置實例。

                                                                                                                                                                                               ⑵聚四氟乙烯面料傳感器的裝置

                                                                                                                                                                                               用聚四氟乙烯(PTFE)管材做的電磁流量傳感器面料,它與傳感器丈量管管壁一般不粘貼,因而,對真空負壓是靈敏的。管道內真空會抽癟聚四氟乙烯面料,使面料呈波濤型拱起是典型的負壓損壞形狀,這樣損壞了電極的密封,傳感器就不能工作了。因而,PTFE面料的傳感器不能用于負壓體系,也應盡或許防止裝置在或許產生瞬間負壓的地方。如傳感器不該裝置在泵的吸入端;閘閥應裝在傳感器的后側。

                                                                                                                                                                                               其他,PTFE翻邊面部分不該有損害或被切掉,不然介質會流入面料反面而損壞絕緣。為了維護面料翻邊,有些制造廠在有PTFE面料傳感器的兩邊法蘭上掩蓋維護接地環,防止PTFE翻邊遭受意外損害,在裝置時不該拆去。維護接地環的材料可根據丈量流體的腐蝕狀況挑選。

                                                                                                                                                                                         


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