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10.2 废物清除 ................................................................................................................. 错误!未定义书签。

10.2 Waste removal ......................................................................................................................................... 12

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Summary of Contents for MFTC Series

Page 1: ...1 12 WWW DDTOP COM MFTC SERIES PURGE DEVICE Operation Manual MTFC DT JS 1040 2020 A ...

Page 2: ...ange without notice Dandong Top Electronics Instrument Group Co Ltd reserves the right to modify the products described in this manual at any time without notice Quality Assurance Dandong Top Electronics Instrument Group Co Ltd guarantees all LBTC Positive Displacement Rotary Vane Flow Meter to be free from defects in materials and manufacturing processes within one year from the date of delivery ...

Page 3: ...trument Group Co Ltd has passed the ISO9001 quality system certification The whole production process is carried out in strict accordance with the provisions of the quality system to provide the strongest guarantee for the quality of products and services ...

Page 4: ...2 错误未定义书签 3 2 Outlet Purge Device Measuring Principle Figure 2 8 图 2 错误未定义书签 Figure 2 Schematic Diagram of the Outlet Purge Device Measurement Principle 8 4 产品特点错误未定义书签 5 技术指标错误未定义书签 5 technical parameters 9 6 典型应用错误未定义书签 6 Typical Applications 9 Figure 4 Diagram of Guided Wave Radar Installation Location in Conical Bottom Tank 10 7 吹扫装置安装注意事项错误未定义书签 7 Precautions for installation of Pur...

Page 5: ...5 12 WWW DDTOP COM 10 2 废物清除错误未定义书签 10 2 Waste removal 12 ...

Page 6: ...Overview of the blowing unit MTFC10 series purge device adopts variable area flow meter and constant flow valve to form a purge device which realizes flow measurement and stable output in occasions of pressure fluctuation The device adopts all metal structure with the characteristics of small volume small pressure loss and large range ratio 10 1 It can be used in various industries in complex and ...

Page 7: ...ce 4 P2 P3 F f A a A P1 P2 Since the flow rate is determined by the pressure on both sides of the diaphragm P2 P3 the following formula can be obtained by the formula in 3 Since A a a A P1 P2 is negligible and F f and A are constant values so P2 P3 is constant value then the flow rate will not change due to the pressure change at the inlet When the medium is an incompressible liquid the RE inlet c...

Page 8: ...ressure is balanced that is 1 2 P2A P3a F P1A P2a P1 P2 F A a A P2 P3 Since the magnitude of the flow depends on the difference P1 P2 of the pressure regulator diaphragm we can get by 3 P1 P2 F A a A P2 P3 In the case of incompressible liquids the CH outlet constant flow valve can be used for inlet pressure changes For 4 P2 is constant and P1 is variable so P1 becomes P1 P P2 becomes P2 P so P2 P3...

Page 9: ...or horizontal vertical connection according to customer s requirement 8 Limit alarm 1 to 2 alarm switches optional 9 Dimensions Horizontal mounting center distance 70mm 6 Typical Applications When using the orifice plate to measure the flow of corrosive liquids or liquids containing solid particles a double mounted Purge Device is used to continuously and quantitatively blow air into the pressure ...

Page 10: ... shall not exceed the given dimensions by too much or too little in order to avoid tensile or compressive forces acting on the Purge Device 5 When the liquid medium contains ferromagnetic particles a magnetic filter must be installed before the instrument By detecting the static pressure of each section of the blast furnace body and calculating the air permeability resistance index to forecast the...

Page 11: ...l of the flow meter indicate the set value Do not close the valve provided with the purge device 5 When operating be careful not to allow fluid to be rapidly injected into the purge device through the valve on the flowmeter Otherwise the float in the flowmeter will rise rapidly and damage the flowmeter 6 Particular attention must be paid to ensure that the medium flows in the same direction as tha...

Page 12: ...eason Solution No Flow Insufficient pressure on supply Increased pressure on supply Foreign body contamination blockage Check and Clean Flow is too small Flow confirmation Inadequate flow fluctuations Insufficient pressure on supply Increased pressure on supply During Operation of Instrumentation Failure Reason Solution Flow Interruption Block Wash and Clean Fluctuating Flows Mechanical fatigue or...

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