Fluid separation element assembly
First Claim
1. A fluid separation element assembly comprising:
- a fluid separation element having a membrane unit and a wrapping material formed around said membrane unit, said membrane unit being formed of a separation membrane, a permeate carrier material and a feed carrier material which are spirally wound around a permeate collection tube, a plurality of said fluid separation elements including said separation membrane, said carrier material and said feed carrier material being contained in a pressure vessel;
an anti-telescoping plate attached to at least one end of one of said fluid separation elements with freedom to be detached; and
feed water seal means sealingly connected across a gap between said fluid separation element and said anti-telescoping plate, for preventing fluid feed from leaking through said gap.
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Accused Products
Abstract
A fluid separation element assembly comprises a fluid separation element having a membrane unit and a wrapping material formed around the membrane unit, an anti-telescoping plate attached to at least one end of the fluid separation element at a condition free to be detached, and a feed water seal member for preventing feed water from leaking through a gap between the fluid separation element and the anti-telescoping plate. The membrane unit is formed by a separation membrane, a permeate carrier material and a feed carrier material which are spirally wound around a permeate collection tube. By providing the anti-telescoping plate detachably, when the separation membrane has reached its life, it is possible to reuse other members. By providing the feed water seal member, it is possible to ensure a large diameter of the fluid separation element as well as to appropriately prevent leakage of feed water into a gap between a pressure vessel and the fluid separation element, thereby increasing the amount of treated water and improving the quality of the treated water.
101 Citations
29 Claims
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1. A fluid separation element assembly comprising:
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a fluid separation element having a membrane unit and a wrapping material formed around said membrane unit, said membrane unit being formed of a separation membrane, a permeate carrier material and a feed carrier material which are spirally wound around a permeate collection tube, a plurality of said fluid separation elements including said separation membrane, said carrier material and said feed carrier material being contained in a pressure vessel;
an anti-telescoping plate attached to at least one end of one of said fluid separation elements with freedom to be detached; and
feed water seal means sealingly connected across a gap between said fluid separation element and said anti-telescoping plate, for preventing fluid feed from leaking through said gap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A fluid separation element assembly comprising:
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a fluid separation element having a membrane unit and a wrapping material formed around said membrane unit, said membrane unit being formed by a separation membrane, a permeate carrier material and a feed carrier material which are spirally wound around a permeate collection tube;
an anti-telescoping plate attached to at least one end of said fluid separation element at a condition free to be detached; and
a seal ring attached on a periphery of said anti-telescoping plate for sealing a gap between said periphery of said anti-telescoping plate and an inner surface of a pressure vessel containing said fluid separation element and said anti-telescoping plate. - View Dependent Claims (22, 23, 24, 25)
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26. A fluid separation element assembly comprising:
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a fluid separation element having a membrane unit and a wrapping material formed around said membrane unit, said membrane unit being formed of a separation membrane, a permeate carrier material and a feed carrier material which are spirally wound around a permeate collection tube;
an anti-telescoping plate attached to at least one end of said fluid separation element with freedom to be detached; and
feed fluid seal means sealingly connected across a gap between said fluid separation element and said anti-telescoping plate, for preventing feed fluid from leaking through said gap, wherein said feed fluid seal means comprises a ring member provided on at least one end of said wrapping material, and projecting in the axial direction of said fluid separation element, wherein said ring member is composed of a material having a flexural strength of 50 Mpa or more, and wherein said ring member is formed as a divided ring having seams at positions in the circumferential direction of said ring member.
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27. A fluid separation element having a membrane unit and a wrapping material formed around said membrane unit, said membrane unit being formed by a separation membrane, a permeate carrier material and a feed water carrier material which are spirally wound around a permeate collection tube;
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an anti-telescoping plate attached to at least one end of said fluid separation element at a condition free to be detached; and
a seal ring attached on a periphery of said anti-telescoping plate for sealing a gap between said periphery of said anti-telescoping plate and an inner surface of a pressure vessel containing said fluid separation element and said anti-telescoping plate, wherein said seal ring is attached in a groove formed on said periphery of said anti-telescoping plate, wherein a side wall located at a position upstream of said groove in the flow direction of feed water is taller than a side wall located at a position downstream of said groove in the flow direction of said feed water, and said seal ring attached in said groove comes into contact with said fluid separation element.
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28. A fluid separation element assembly comprising a fluid separation element having a membrane unit and a wrapping material formed around said membrane unit, said membrane unit being formed of a separation membrane, a permeate carrier material and a feed carrier material which are spirally wound around a permeate collection tube;
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an anti-telescoping plate attached to at least one end of said fluid separation element with freedom to be detached; and
feed water seal means sealingly connected across a gap between said fluid separation element and said anti-telescoping plate, for preventing fluid feed from leaking through said gap, wherein said seal means is a seal ring and is attached at a periphery of said anti-telescoping plate, and wherein said seal ring is attached in a groove formed on said periphery of said anti-telescoping plate, wherein a side wall located at a position upstream of said groove in the flow direction of said feed water is taller than a side wall located at a position downstream of said groove in the flow direction of said feed water, and said seal ring attached in said groove comes into contact with said fluid separation element. - View Dependent Claims (29)
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Specification