| 摘要 |
PROBLEM TO BE SOLVED: To prevent a lining and a porous plate from being deformed, and ensure the accuracy of a flow rate measurement. SOLUTION: A through-hole (a ventilation hole) 2c is provided in a position corresponding to a joint 3d of the porous plate (a reinforcement member) 3 in a pipe 2. A fluid passing through the lining 4 and entering between the lining 4 and an inner circumference 2a of the pipe 2 is collected in a gap h of the joint 3d of the porous plate 3, discharged to the outside through the ventilation hole 2c of the pipe 2 provided to correspond to the position, and prevented from being accumulated between the lining 4 and the inner circumference 2a of the pipe 2. A volume change due to a thermal expansion and a thermal contraction is hardly generated, and the lining 4 and the porous plate 3 are prevented from being deformed even if the fluid is used for a black liquor line in a paper-pulp factory. COPYRIGHT: (C)2010,JPO&INPIT
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