摘要:
A membrane element sealing material holding member that even when the dimension of outer diameter of center tube varies, enables holding of the center tube in the center and further enables easy insertion of the center tube; and a membrane element utilizing the same. The membrane element sealing material holding member comprises central opening (19) for insertion of a center tube of spiral membrane element, peripheral orifice (15a) for flowing of a raw liquid into a membrane end portion of membrane element and outer circumferential part (18) for holding of circular sealing material, wherein the central opening (19) has inner circumferential surface (16a) of cylindrical form with a diameter larger than the outer diameter of the inserted center tube, and wherein at three or more positions on the inner circumferential surface (16a), there is provided projection (21) that has sloping face (21a) on its side of center tube (6) insertion and is deformable at the time of insertion of center tube (6) with an outer diameter larger than that of incircle.
摘要:
An object of the present invention is to provide a spiral membrane element that can form a uniform fiber reinforcement layer on an outer circumferential surface by a simple process without a great change in the materials, as well as a process for producing the same. The spiral membrane element of the present invention is a spiral membrane element which is provided with a cylindrical roll R in which a separation membrane, a feed-side flow passageway member, and a permeate-side flow passageway member 3 are spirally wound in a laminate state around a perforated center tube 5 and in which a sealing part for preventing mixing of feed-side fluid and permeate-side fluid is disposed, wherein at least one sheet of the permeate-side flow passageway member 3 has a fiber cloth 23a extended or connected to the outer circumferential side, and the fiber cloth 23a is wound around an outer circumference of said cylindrical roll R, impregnated with a resin and hardened to thereby form a fiber reinforcement layer.
摘要:
A spiral wound membrane module comprises a spiral wound membrane element including a separation membrane having high back pressure strength. The flow rate of permeate in filtration of the spiral wound membrane element is preferably set to 0.5 to 2.0 m3/m2/day, and the filtration time is preferably set to 10 to 300 minutes. The flow rate of wash water in washing is preferably set to 1.0 to 4.0 m3/m2/day, and the washing time is preferably set to 10 to 300 seconds. In such ranges, the ratio of the permeate volume in filtration to the permeate volume in back wash reverse filtration is set to be not more than 600.
摘要翻译:螺旋缠绕膜组件包括螺旋缠绕膜元件,其包括具有高背压强度的分离膜。 螺旋卷绕膜元件的过滤中的渗透液的流量优选设定为0.5〜2.0m 3 / m 2 /天,过滤时间优选设定为10〜300分钟。 洗涤中的洗涤水的流量优选设定为1.0〜4.0m 3 / m 2 /天,洗涤时间优选设定为10〜300秒。 在这样的范围内,反洗涤反向过滤中的过滤中的渗透物体积与渗透体积的比例设定为不大于600。
摘要:
A pickup apparatus capable of omitting an actuator cover and reducing the dimensions thereof, and a method of manufacturing the same. This apparatus is formed of an actuator unit in which a movable unit made by fixing printed board coils on both side surfaces of an objective lens-containing lens holder is supported movably on four wire-form elastic members fixed to an actuator base, and a suspension base which is provided with a pair of yokes to which a pair of magnets disposed in a mutually opposed state are fixed with a predetermined width of magnetic space left therebetween, and which has standing portions. A range of a movement in a focusing direction of the movable unit is restricted by inserting stopper members into insert holes of the standing portions.
摘要:
In the lens driving apparatus of a disk player, a pair of magnets 20 for generating magnetic fields are fixed to a pair of yokes 21, respectively to generate a magnetic gap therebetween. The pair of yokes 21 are oppositely arranged on and fixed to a plate-like actuator base 10 by plural screws 12 through a fixing member 11. A movable portion 50 is movably hung by four supporting wires 32 (or plate screws) on a supporting base 31 that is fixed to the actuator base 10. The movable portion 51 is arranged within the above magnetic gap. In such a configuration, the apparatus for a disk player can shift a natural resonance frequency to a high frequency and can be operated at a high speed.
摘要:
A processing method for processing a substrate has a vertical thermal processing furnace 4 having a bottom and an opening 4a provided at the bottom. A boat 3 holding substrates W in vertical multistairs can be placed on a first lid 17, and the first lid 17 can open and close the opening 4a of the vertical thermal processing furnace 4 with the boat 3 placed thereon. The processing unit also has a boat-placing portion 19 on which the boat 3 and another boat 3 can be placed and a boat conveying mechanism 21 for conveying the two boats 3 alternatively between the boat-placing portion 19 and the first lid 17. A second lid 18 hermetically closes the opening 4a of the vertical thermal processing furnace 4 when the first lid 17 opens the opening 4a but no boat 3 passes through the opening 4a. The processing unit can effectively reduce the undesirable influence from the opening 4a when the first lid 17 is taken off from the opening 4a and the boat 3 is conveyed out, and can also reduce the wasted energy by preventing the fall of the temperature in the interior of the thermal processing furnace 4.
摘要:
A semiconductor processing apparatus comprises a main body having an air passage, a plurality of filter units connected in series with the air passage in the main body, each filter unit having an air intake port, an air otlet port and an air blower, the air intake port of each filter unit communicating with the air outlet ports of the filter units disposed upstream side of the air passage, and a mechanism for arranging articles to be processed close to the air outlet port of each filter unit such that air is supplied to the articles to be processed after the air has passed through the corresponding filter units.
摘要:
A vertical heat-treating apparatus which allows effective use of an installation space and improved productivity is disclosed. In this system, a plurality of housings, each accommodated with a vertical reactor, are aligned with each other. A gas feed unit and the like are arranged in front of each housing with a space disposed therebetween for conducting maintenance work. A rail is installed along the rear side of the housings. A boat liner is located on the rail for carrying a boat to the housings. An interface mechanism including a horizontal-vertical conversion handling unit for supplying the boat in a vertical state to the boat liner is disposed near the rail.
摘要:
A door handle device used for an automotive vehicle provided with a resin handle box. Therefore, the door handle device of the present invention is lightweight and inexpensive. The structure of the door handle device is such that almost the entire inside surface of the handle box is in contact with the recessed portion of the door panel. Since a force applied to the handle body is transmitted to the door panel through the handle box without any application of bending or shearing force to the handle box, it is possible to use a resin handle box.
摘要:
It is an object of the present invention to provide a composite semi-permeable membrane exhibiting excellent chemical resistance and having practical water permeability and salt-blocking property, and a method for producing the same. The present invention relates to a composite semi-permeable membrane, including a porous support and a skin layer formed on a surface of the porous support, wherein the porous support contains a thermosetting resin porous sheet having a three-dimensional network structure and pores communicating with each other and wherein the thermosetting resin porous sheet has an average pore diameter of 0.01 to 0.4 μm.