| 摘要 |
PROBLEM TO BE SOLVED: To provide a pump unit capable of controlling a conveying condition of fluid.SOLUTION: A pump unit 10 includes an outside cylinder 12, an inside cylinder 11 arranged in the inner peripheral side of the outside cylinder 12, and upstream side and downstream side flanges 13A, 13B being fixing members fixing both axially directional end parts of the inside cylinder 11 and both axially directional end parts of the outside cylinder 12. In the pump unit, a conveying condition of fluid is controlled by restraining the deformation of the inside cylinder 11 by arranging restrainers 15 arranged in a peripheral direction of the inside cylinder 11 with an interval and extending in an axial direction of the inside cylinder 11 in the inside cylinder 11, by uniformly expanding an expanding area partitioned by the restraining body 15 by arranging mountain-shape protrusions 16 formed in the peripheral direction of the inside cylinder 11 with an interval in the middle of the restraining body 15 and protruding the inner peripheral side of the inside cylinder 11, and by forming a plurality of protrusions between the restrainers and filtering solid-liquid mixture by net-shape gaps formed by making the protrusions abut on each other. |
