Abstract:
PROBLEM TO BE SOLVED: To reduce production cost of a hollow fiber membrane module and improve productivity of the same, and improve sealability of a seal part.SOLUTION: A hollow fiber membrane module comprises: a cylindrical case 1 on which a plurality of flow passage holes 1a, 1b is opened; a plurality of hollow fiber membranes 2 formed into a bundle shape and filled in the case 1; and potting parts 3, 4 for sealing both end opening parts of the case 1 so that only both ends of internal pores of the hollow fiber membrane 2 open in both end opening parts of the case 1. On an outer peripheral face of the case 1, annular holders 5, 6 having grooves 5a, 6a respectively for fitting seal rings are integrally joined in a contact state.
Abstract:
PROBLEM TO BE SOLVED: To provide a housing-mounted hollow fiber membrane module wherein mountability to a housing is improved by using the seal members, e.g., O-rings having the same diameter size.SOLUTION: In a housing-mounted hollow fiber membrane module, a hollow fiber membrane module comprising a bundle attachment tube storing hollow fiver membranes is inserted from a hollow fiber membrane module insertion part formed in one end of a housing, at least two seal members equal to each other are disposed in a gap between the outer circumferential face of the bundle attachment tube and the inner circumferential face of the housing storing the bundle attachment tube, and the hollow fiber membrane module is mounted in the housing. The hollow fiber membrane module is mounted in the housing by fitting the seal members into seal member fitting-in grooves respectively formed in the inner circumferential surface of an end part positioned on the side opposite to the hollow fiber membrane module insertion part of the housing and the outer circumferential surface of the bundle attachment tube corresponding to an end part positioned on the hollow fiber membrane module insertion part side of the housing.
Abstract:
PROBLEM TO BE SOLVED: To provide a humidification device capable of reducing pressure drop and suppressing variation of humidification efficiency or tuning performance of pressure drop.SOLUTION: A humidification device is formed by a housing storing a hollow yarn membrane module case. Between an inner peripheral face of the housing for storing the case and a case wall face, through holes are formed on convex rib parts extended in a belt shape at two points from the case wall face with respect to a case longitudinal axial direction. Longitudinal axial direction side face ends of the convex ribs contact, preferably contact in a fitted state, to a projection part or a recessed part provided on the inner peripheral face of the housing.
Abstract:
PROBLEM TO BE SOLVED: To provide a production method of a hollow fiber membrane module which can carry out potting of ends simultaneously even if the hollow fiber membrane module has a structure where flowing-in/out ports are arranged to be cross-multiplied (at the position shifted by 180° in the peripheral direction) from one end to the other end of a module case. SOLUTION: The hollow fiber membrane module comprises the cylindrical module case with the port, and a plurality of hollow fiber membranes to be inserted into the module case, wherein ends of the hollow fiber membrane are potted with a potting agent by an acted centrifuge force. In the potting step, the ports have a key-hole shape and potting is carried out in the state that an injection nozzle to be engaged with the port is made to be engaged with the port. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a water purifying cartridge in which structure is improved so that charge quantity of active carbon can be increased as much as possible and waterproofness can be protected from being damaged due to sticking of fine particulate active carbon at a screw joint between a case and a cap. SOLUTION: Active carbon 28 is charged in a cylindrical vacant space between an inner tube case 21 and an outer tube case 22. A holding plate 30 for holding the active carbon 28 inside by pushing from above is provided at the screw joint composed of a female screw part 22a and a male screw part 23a between the inner tube case 21, the outer tube case 22 and a cap 23. The holding plate 30 is a tube body provided with a trunk part 30a having necessary height and can hold the active carbon 28 of maximum quantity inside by height dimension due to provision of the trunk part 30a and maximum quantity of the active carbon 28 can be held inside the cartridge to a maximum possible limit of upper end parts of the inner tube case 21 and the outer tube case 22. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a hollow fiber membrane module which controls the pressure of a fluid in a case and improves the reliability. SOLUTION: A flow regulating valve 2 is installed on the inflow port side for leading the fluid into the case 3. The valve 2 has an O-ring which is contracted in diameter with an increase in the amount of the fluid flowing into the case 3 and is deformed elastically in the channel narrowing direction. COPYRIGHT: (C)2004,JPO
Abstract:
PURPOSE:To prevent the rise of a sealed and solidified part and to produce a hollow-fiber membrane having a large area by allowing an adhesive to easily intrude into the gap between the relatively dense membranes. CONSTITUTION:Many hollow-fiber membranes 3 are bundled and inserted into a hollow module case 2, and a liq. adhesive 4 (potting compd.) is hermetically filled in the gap between the membranes 3 and that between the membrane 3 and the case 2 to bond and fix the membranes. The adhesive 4 is filled from the end face of the bundle of membranes 3.
Abstract:
PURPOSE:To facilitate the cutting and temporarily fastening processes of a hollow yarn membrane by closing the opening end part of a hollow hole by melting and solidifying a membrane wall. CONSTITUTION:The opening end part of a hollow hole 2 is closed by the closure part 4 formed by melting and solidifying a membrane wall 3. As a result, sealing work requiring two conventional cutting and temporarily fastening processes can be performed by one process and workability is enhanced and a working time can be shortened to a large extent.
Abstract:
PURPOSE:To inject and fix a specified amt. of a filler adhesive between hollow fibers and between the hollow fiber and a case by housing a bundle of hollow fibers in the cylindrical case, airtightly closing the opening on both ends of the case and evacuating the case from its one end side. CONSTITUTION:The bundle 3 of hollow fibers with its end previously sealed is placed in an outer cylinder 2, and adaptors 12 and 11 are fixed respectively to the top of the outer cylinder 2 and a potting part P. One end of a tube 13 of PVC, etc., is fixed to the adaptor 12 at the potting part, and the other end is dipped in a liq. potting compound 4 (filler adhesive) in a tank 14. A sucking device 15 is then actuated, and the agent 4 is sucked into the outer cylinder 2 while confirming the pressure with a pressure gage, etc., and adjusting the inlet velocity with a bypass valve 16. When the compound 4 is augmented to an optional height, the vacuum is fixed by adjusting the bypass valve 16, and the compound 4 is cured as such.