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      液位計廠(chǎng)家,液位變送器廠(chǎng)家產(chǎn)品推薦
      智能電磁流量計選型注意
      信息來(lái)源: 流量變送器 | 2019-04-12 點(diǎn)擊量: 5593

         智能電磁流量計選型注意哪些?西安華恒儀表制造有限公司為您介紹:智能電磁流量計因計量精度較高、使用方便、測量范圍寬等特點(diǎn)而廣泛應用于石化、城市燃氣行業(yè)。

       
        What should be paid attention to in the selection of intelligent electromagnetic flowmeter?Xi'an Huaheng Instrument Manufacturing Co.,Ltd.will introduce to you:Intelligent electromagnetic flowmeter is widely used in petrochemical and urban gas industry because of its high measurement accuracy,convenient use and wide measurement range.
       
        智能電磁流量計既可作為工藝控制的檢測儀表,也可作為貿易結算的計量?jì)x表。因此,在實(shí)際應用中難免會(huì )出現被測介質(zhì)性質(zhì)、口徑選擇、安裝條件、維修校驗等問(wèn)題,為了保證渦輪流量計的正常運行,在其使用的過(guò)程中應注意以下幾個(gè)問(wèn)題:
       
        Intelligent electromagnetic flowmeter can be used not only as a measuring instrument for process control,but also as a measuring instrument for trade settlement.In order to ensure the normal operation of the turbine flowmeter,the following problems should be paid attention to in the process of its use:the properties of the measured medium,the selection of caliber,the installation conditions and the maintenance and verification.
       
        智能電磁流量計對被測介質(zhì)有嚴格的要求
       
        Intelligent electromagnetic flowmeter has strict requirements on the measured medium
       
        a.智能電磁流量計一般只用于計量低粘度的單相流體
       
        A.Intelligent electromagnetic flowmeters are generally used only for measuring low-viscosity single-phase fluids
       
        b.用智能電磁流量計計量的介質(zhì)流體應處于紊流狀態(tài)
       
        B.Medium fluids measured by intelligent electromagnetic flowmeters should be in turbulent state
       
        c.目前大多數智能電磁流量計的軸承為球體軸承,因此對被測介質(zhì)的清潔度有很高的要求。如介質(zhì)中含有顆粒雜質(zhì),會(huì )使軸承快速磨損,若含有纖維雜質(zhì)則會(huì )纏繞在儀表葉片上,影響儀表的正常轉動(dòng)。在實(shí)際應用中可在渦輪流量計前端加裝有效的過(guò)濾器。
       
        C.At present,most of the bearings of smart electromagnetic flowmeters are spherical bearings,so the cleanliness of the measured media is very high.If there are particle impurities in the medium,the bearing will wear quickly.If there are fiber impurities,they will be wound around the instrument blade,which will affect the normal rotation of the instrument.Effective filters can be installed at the front end of turbine flowmeter in practical application.
       
        智能電磁流量計口徑的選擇應注意的問(wèn)題
       
        Noticeable Problems in Choosing the Diameter of Intelligent Electromagnetic Flowmeter
       
        在選擇智能電磁流量計的口徑時(shí),應使介質(zhì)的工況流量在流量計測量范圍的15%—70%之間。當被測介質(zhì)流量處于所選流量計測量范圍的15%以下時(shí),介質(zhì)流體在管道中流速緩慢處于層流狀態(tài),流量計的測量線(xiàn)性變差,難以達到要求的計量精度。
       
        When choosing the caliber of intelligent electromagnetic flowmeter,the working flow of medium should be between 15%and 70%of the flowmeter measurement range.When the measured medium flow rate is less than 15%of the selected flowmeter measurement range,the medium fluid flow rate in the pipeline is slowly in the laminar state,and the flowmeter measurement linearity becomes worse,so it is difficult to achieve the required measurement accuracy.
       
        當介質(zhì)工況流量大于所選擇流量計測量范圍的70%時(shí),渦輪轉速將變的很大,加速軸承和支架的磨損,影響智能電磁流量計的使用壽命。
       
        When the flow rate in medium condition is more than 70%of the measurement range of the selected flowmeter,the turbine speed will change greatly,which will accelerate the wear of bearings and brackets,and affect the service life of the intelligent electromagnetic flowmeter.
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