110 results about "Membrane feeding" patented technology

A gas-separation membrane module assembly and a gas-separation process using the assembly. The assembly includes a set of tubes, each containing gas-separation membranes, arranged within a housing. The housing contains tube sheets that divide the space within the housing into three separate, gas-tight spaces, with the tubes mounted in the central space. Within this space, each tube has an aperture or hole in its wall that enables gas that has been retained on the feed side of the membranes to flow out of the tubes and into the space. The assembly can be used in various ways to carry out gas separation processes.

Direct-osmosis (DO) method for cleaning a semi-permeable membrane in a RO separation module, the membrane having a feed side with foulant located thereon, and an opposite permeate side. A normal RO separation process in the same module includes: feeding, under gauge pressure PGr, raw saline solution having osmotic pressure POr to the membrane feed side; collecting permeate (solvent) having osmotic pressure POp from the permeate side, under gauge pressure PGp; and removing residual brine from the membrane feed side. The method comprises feeding to the feed side of the membrane, for a predetermined injection time, super saline solution having osmotic pressure POs>POr, such that backward flow of permeate towards the feed side of the membrane is provided so as to lift the foulant from the feed side.

The present invention discloses an air conditioner decorative plate adopting novel technique of transcribing in mold and the technologic method thereof, wherein, the decorative plate is arranged on an air outlet frame inside an air outlet frame of a front panel; the air outlet frame is pivoted inside the air outlet frame, can swing up and down around a shaft to supply air, and can also obstruct an air outlet to prevent dust from entering when an air conditioner is turned off. The decorative plate adopts a novel technique of transcribing in mold, and the technologic method comprises the following steps: firstly, membrane making, which comprises selection of materials for making membrane and printable materials, pattern printing in printed region and drying after making; secondly, positioning and membrane feeding, which comprise membrane feeding of a membrane feeding device, die positioning on the decorative plate and membrane fixing; thirdly, compression molding, which comprises heating for softening the membrane and molding; fourthly, injection molding, which comprises selection of castingresin corresponding to the membrane materials, corresponding to the resin temperature regulation and resin injection; fifthly, post treatment, which comprises taking-out, shearing and processing. The present invention executes silver luster treatment to the whole surface of the decorative plate; thereby the decorative plate is beautiful and stylish in exterior appearance, wear resistant and scratch resistant.

The present invention relates to a process for improving a deasphalting unit process by producing an improved feedstream for the deasphalting process via ultrafiltration of a vacuum resid-containing feedstream. In particular, the present invention produces an improved quality feedstream to a solvent deasphalting process which results in improved deasphalted oil (DAO) production rates and / or higher quality deasphalted oils. The present invention can be particularly beneficial when used in conjunction with an existing deasphalting equipment to result in improved deasphalted oil (DAO) production rates and / or higher quality deasphalted oils from the existing deasphalting equipment without the need for significant equipment modifications to the existing deasphalting unit.

A method for removing sulfur-containing compounds from a sulfur recovery unit (SRU) tail gas stream includes the steps of introducing the SRU tail gas stream to a reducing unit to produce a membrane feed, the reducing unit configured to reduce the sulfur-containing compounds to hydrogen sulfide, introducing the membrane feed to a hydrogen sulfide membrane unit, the hydrogen sulfide membrane unit comprising a membrane, wherein the membrane feed comprises hydrogen sulfide, allowing the membrane feed to contact a feed side of the membrane such that hydrogen sulfide permeates through the membrane to a permeate side, and collecting the retentate gases that fail to permeate through the membrane to produce a stack feed, wherein the stack feed comprises retentate gases.

The invention provides a membrane type fuel gas meter leather membrane feeding device facilitating loading. The feeding device can replace manual work to achieve accurate and fast feeding of leather membranes and does not need to stop during loading. The feeding device comprises a base, leather membrane guiding rods, a first lifting mechanism, a rotating mechanism, a suction cup installation frame, suction cups, a second lifting mechanism, a supporting block, an indexing rotating mechanism and a rotating disc. The first lifting mechanism, the second lifting mechanism and the indexing rotating mechanism are installed on the base. The rotating mechanism is installed on a lifting part of the first lifting mechanism. The middle portion of the suction cup installation frame is fixed to a rotating part of the rotating mechanism. The suction cups are symmetrically arranged at the two ends of the suction cup installation frame. The supporting block is installed at the top end, provided with a lifting part, of the second lifting mechanism. The middle portion of the rotating disc is installed on a rotating part of the indexing rotating mechanism. The rotating disc is at least provided with two holes which are evenly distributed along the circumference. The leather membrane rods are arranged on the peripheries of the holes. The indexing rotating mechanism is adopted in the device, and therefore the device can conduct loading without stopping.

The invention provides a bag making machine for processing one side surface of a straight-through bag. The straight-through bag has a through hole which is penetrated from the head to the tail. The bag making machine comprises a rack, a feeding mechanism, a single surface perforating device, a welding device and a gas-permeable membrane feeding mechanism, wherein the feeding mechanism is arrangedon the rack and is configured to convey the straight-through bag from one end of the rack to the other end of the rack intermittently, continuously and horizontally; the single surface perforating device is used for perforating one side surface of the straight-through bag; the welding device is used for welding a gas-permeable membrane on a single surface hole of the straight-through bag; the gas-permeable membrane feeding mechanism is used for conveying the gas-permeable membrane in a direction orthogonal to the conveying direction of the straight-through bag and is configured to convey the gas permeable membrane in the welding device; and the two side surfaces of the straight-through bag are separated through a division plate arranged in the straight-through bag and a heat insulation plate connected to the division plate and arranged in the through hole in a suspension manner, and thus, the single surface hole is formed in one side surface of the straight-through bag by cutting and the gas-permeable membrane is welded on the single surface hole. The bag making machine can significantly improve the production efficiency, meanwhile can reduce the labor intensity, and has very goodpracticability.