Abstract:
It is an object of the present invention to provide a separation membrane in which a film-forming solution can be prevented from reaching a rear surface of a porous support in a step of forming a film, the adhesion between a functional film for separation and the porous support is high, and the thickness can be reduced. In the present invention, the separation membrane includes a porous support having a rough rear surface and a'functional film for separation, and the functional film is disposed on a front surface of the porous support and extends into the porous support.
Abstract:
Provided are membrane elements and membrane units capable of easily forming a space part surrounded with a frame body above the membrane elements regardless of the number of the membrane elements. That is, the membrane elements are membrane elements each comprising filtering membranes on both surfaces of a plate-like supporting plate, wherein spacer parts are formed in both side parts for keeping the membrane face distance to adjacent membrane elements being prescribed intervals, and the spacer parts have through bolt insertion holes and are extended upward from the upper end part of the supporting plate. The membrane units are configured by arranging a plurality of the membrane elements in such a manner that the channel parts formed in the spacer parts are brought into contact with each other, seal panels are installed in the outermost parts of the arranged membrane elements, and a frame body is formed by surrounding the space above the filtering membranes by the spacer parts and the seal panels.
Abstract:
Provided is a separation membrane element whereby permeation performance and durability can be enhanced without compromising the characteristics of a separation membrane having excellent separation membrane capability. This separation membrane element (1) is characterized in that two separation membranes (2, 2) form a pair, the permeation sides thereof facing each other with a gap (5) therebetween, a seal part (6) on the peripheral edge of the gap (5) is sealed, and the separation membranes (2, 2) are connected to each other by two or more resin parts (7) located on the inside relative to the seal part (6) on the peripheral edge.
Abstract:
PROBLEM TO BE SOLVED: To provide a separation membrane preventing a membrane forming raw liquid from reaching at the back surface of a porous support in a membrane manufacturing process, high in the adhesiveness of the separation function membrane and thin in the porous support. SOLUTION: The separation membrane is formed on the upper surface of the porous support having a rough back surface so as to extend into the porous support. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To prevent the generation of malfunction while quantitatively inspecting the condition of a yarn package and accurately performing the feed back of a result to a manufacturing requirement by providing a means for unraveling the yarn from a yarn package and a sensor for detecting the dynamic position of the unraveled yarn. SOLUTION: In an inspecting device, a yarn package 1 is wound on a bobbin 2, and installed in a wind-out shaft 3 so as to be supported. A motor 4 is connected to a wind-out shaft 3, and the number of revolution is controlled. The yarn 5 is unraveled from the package 1 in the radial direction of the package 1 through a touch roll 6. Unraveling is performed by the suction by a suction gun 7, and the unraveled yarn 5 is sucked by the suction gun 7 through a traverse fulcrum guide 8 fixed to a constant position. A sensor 10 for detecting the dynamic position of the unraveled yarn 5 is provided on the way of the passage of reeling thread 9 from the touch roll 6 to the traverse fulcrum guide 8. Furthermore, signal can be transmitted between a data processing personal computer.
Abstract:
PROBLEM TO BE SOLVED: To provide a dipped type filtering device which enables a running cost reduction by arranging hollow fiber membrane modules in a plurality of stages in an up-and-down direction to improve use efficiency of air for cleaning hollow fiber membranes. SOLUTION: When a cross-sectional area of an air supply portion of the hollow fiber membrane module is S, the hollow fiber membrane modules at least except the highest rung are provided with a through-hole only on an area which corresponds to 0.5S of the central part of the air supply portion. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
The present invention provides a high-efficiency separation-membrane module that includes separation membranes that flutter without damaging the membranes even though a pocket separation-membrane element without a support plate is used, and that discourages sludge attachment. A separation-membrane module 1 includes an element block 2 that is formed by arranging, in parallel, a plurality of separation-membrane elements 4 that are formed by arranging a pair of separation-membranes with their respective permeate surfaces in opposition to each other and sealing the edges of the pair of the membranes; and an aeration block 3 that includes an aeration pipe 31 and that is disposed under the element block 2. In the element block 2, at least one upper spacer 8 is disposed in the upper portion of each space between the adjacent separation-membrane elements 4, and a lower spacer 9 is disposed under the upper spacer 8 in each space between the adjacent separation-membrane elements 4. And the leftmost and the rightmost separation-membrane elements 4 of the plurality of the separation-membrane elements 4 are secured to a frame 12 at the lower spacers 9.
Abstract:
To provide a liquid separation device capable of suppressing the lowering of filtration function due to an increase in flow channel resistance of permeated liquid resulting from that a separation membrane falls in a groove of a permeated liquid flow channel material, and breakage of the separation membrane surface accompanied thereby, a permeated liquid flow channel material disposed on the back side of a separation membrane is composed of a sheet-like material that a linear groove and a linear crest are alternately arrayed on one surface or both surfaces, wherein a groove width of the linear groove in the sheet-like material is 10 to 200 µm, and a ratio of the groove width of the linear groove to the pitch of the linear groove is 0.45 or more.