Back to results
US 4,731,181 AGranted
Apparatus for membrane separation
AssigneeKurita Water Industries Ltd.
InventorKeiji Uemura
Life of this patent
Estimating the term…
Abstract
A module of membranes for permeatingly treating fluid to be treated is housed in a pressure vessel, and, in this pressure vessel, a device for feeding the fluid to be treated is integrally connected to this pressure vessel. The pressure vessel has devices for taking the permeated fluid and the thickened fluid out of the module, respectively.
Claims17
An apparatus for membrane separation, comprising:
- a module of membranes for permeatingly treating fluid to be treated;
- a pressure vessel incorporating therein said module;
- means for taking out the module-permeated fluid and means for taking out the thickened fluid, which are provided in said pressure vessel;
- means for feeding the fluid to be treated under pressure into said pressure vessel, said feeding means being connected to said pressure vessel to form a unitary structure and including a plunger type pump and a motor with a shaft for driving the pump, said pump including a casing, a rotary shaft situated inside the casing and connected to the shaft of the motor, an inclined plate provided on said rotary shaft and inclined to a plane normal to the axis of said rotary shaft, a ring concentrical with said rotary shaft on the side opposite to the motor, a ring shaped groove with a smooth wall formed inside the ring, a plurality of plungers slidably situated in the casing and having spherical forward ends situated in the ring shaped groove, and a plurality of coil springs for pressing said plungers such that the forward ends of the plungers are pushed into the ring shaped groove.
1 more element
An apparatus for membrane separation, comprising:
- a module of membranes for permeatingly treating fluid to be treated;
- a pressure vessel incorporating therein said module, said pressure vessel having means for taking out module-permeated fluid and means for taking out thickened fluid;
- and
- pump and motor means for feeding the fluid to be treated under pressure into said pressure vessel, said pump and motor means being connected directly to said pressure vessel to form a linear unitary structure, said pump and motor means including a plunger type pump for feeding the fluid to be treated under pressure into said pressure vessel, said pump having a rotary shaft therein and being connected directly to said pressure vessel, a motor having a rotary shaft connected to the rotary shaft of said pump, and casings for enclosing said pump and motor to form a linear unitary structure.
1 more element
An apparatus for membrane separation, comprising:
- a module of membranes for permeatingly treating fluid to be treated;
- a pressure vessel incorporating therein said module;
- means for taking out the module-permeated fluid and means for taking out the thickended fluid, which are provided in said pressure vessel;
- means for feeding the fluid to be treated under pressure into said pressure vessel, said feeding means being connected to said pressure vessel to form a unitary structure and including a plunger type pump and a motor with a shaft for driving the pump, said pump including a casing, a rotary shaft situated inside the casing and connected to the shaft of the motor, an inclined plate provided on said rotary shaft and inclined to a plane normal to the axis of said rotary shaft, a plurality of plungers slidably situated in the casing and having forward ends abutting against the inclined plate, and a plurality of coil springs for pressing said plungers such that the forward ends of the plungers are pushed onto the inclined plate.
1 more element
Dependencies are inferred from the claim text.