CN104785075B - A kind of gaseous jet simulation device and method for eliminating electrostatic - Google Patents
A kind of gaseous jet simulation device and method for eliminating electrostatic Download PDFInfo
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- CN104785075B CN104785075B CN201510203837.0A CN201510203837A CN104785075B CN 104785075 B CN104785075 B CN 104785075B CN 201510203837 A CN201510203837 A CN 201510203837A CN 104785075 B CN104785075 B CN 104785075B
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Abstract
The present invention relates to membrane separation device fields, disclose a kind of gaseous jet simulation device and method that can eliminate electrostatic, the gaseous jet simulation device includes membrane module, it is at least partly prepared by conductive material in the membrane module, the gaseous jet simulation device further includes the film covered in the membrane module, and the conductive mesh being in contact with above-mentioned conductive material.Device of the present invention in membrane separating process, transfers out membrane module by conductive mesh in the electrostatic that film surface or film layer gap are accumulated, achievees the purpose that elimination internal electrostatic.The present invention can effectively eliminate the electrostatic in Membrane Gas Separation Processes, be suitble to flammable explosive gas separation field.
Description
Technical field
The present invention relates to technical field of membrane separation, and in particular to one kind can eliminate gaseous jet simulation device and the side of electrostatic
Method.
Background technique
During the flammable explosive gas such as organic vapor separation and recovery, since gas is not exclusively pure, often containing ash
Solid particles or the liquid particles such as dirt, iron end, drop, steam, can be produced by processes such as the collisions, friction, division of these particles
Raw electrostatic, in addition, can also generate electrostatic when swiftly flowing gas flows through flow-guiding screen.Since conventional flow-guiding screen is insulator,
These electrostatic can constantly be accumulated, if cannot be discharged in time, gently if adsorb dust etc., passage causes fouling membrane, heavy then reach
It can discharge when to certain voltage value and generate electric spark, encountering imflammable gas can explode.Therefore, how electrostatic to be discharged in time
It is that film is applied to flammable explosive gas separation field urgent problem to be solved.
Utility model patent CN201164794Y " laminated gas separation film component " is related to a kind of stacked gas separation
Membrane module, the positioning by the way that a certain number of film separation units can be assembled to positioning each other made of conductive material
Pad fits together, and locating pad surrounding has the "O"-ring of sealing to separate unstrpped gas with product gas.The patent is also adopted
It is possible that the accumulation that electrostatic flows through film surface in gas is reduced with the short runner of film separation unit, prevents that electrostatic bring is pacified
Full hidden danger, so as to handle the mixed gas being in explosive range.However the patent flow-guiding screen is not related to conduction, but
Using locating pad come conductive, reduce the effective area of membrane module to a certain extent.
Patent CN101239279B " antistatic rolling diaphragm separator and preparation method thereof " is related to antistatic rolling UF membrane
Device is equipped with metal deflector at membrane module both ends, and metal deflector is fixedly connected with metal collection pipe, membrane module internal penetration gas
A certain number of wires are placed in channel or metal mesh, wire or metal mesh are communicated with metal collection pipe；It is logical in unstripped gas
Wire is placed in road or metal mesh, wire or metal mesh are connected with metal deflector.Separator can be reduced in use process
Electrostatic caused by inside has anti-static function.
The domestic method for solving the electrostatic problem in Membrane Gas Separation Processes is very limited at present, although these methods can solve
Certainly electrostatic problem, but more or less there are some problems.Reduce as increased locating pad or metal mesh made of conductive material etc.
The effective area of membrane module, also increases operational sequence, influences production efficiency；Wire (net) is easy to scratch film surface, influences to divide
From efficiency；Wire (net) is easy poor contact, and it is quiet that the dead angle etc. that locating pad locally still has electrostatic that can not discharge will lead to conduction
Electricity is obstructed；Wire (net) corrosion resistance difference etc..
Summary of the invention
The first object of the present invention is the deficiency for above-mentioned electrostatic problem processing method, and one kind can eliminate gaseous jet simulation
The method of device electrostatic.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of method for eliminating gaseous jet simulation device electrostatic, the gaseous jet simulation device includes membrane module, described
At least partly be prepared by conductive material in membrane module, the method using conductive mesh as the gaseous jet simulation device in
Flow-guiding screen is simultaneously in contact with the conductive material.
Wherein, the flow-guiding screen includes feed side flow-guiding screen and per-meate side flow-guiding screen.
Wherein, conductive mesh string diameter is 0.1 ~ 2mm, preferably 0.5 ~ 1mm；Screen distance is 1 ~ 8mm, preferably 2 ~ 5mm.
Conductive mesh material of the present invention is organic material, metal material, inorganic or mixed materials.
Wherein, the organic material, metal material, inorganic or mixed materials are known to those skilled in the art
Common conductive material.
More specifically, it is preferable to which conductive mesh of the present invention uses conductive plastics, the conductive plastics passes through in plastic master
Addition conductive material is prepared in grain, and the conductive mesh surface resistivity made of the conductive plastics is 102~107Ω/m2。
Wherein, the conductive material in the conductive plastics is antistatic filler, carbon system filler or metal filler, institute
Stating antistatic filler includes ethoxylated fatty amine, quarternary ammonium salt compound, fatty acid ester；Carbon system filler includes stone
Ink, carbon fiber and carbon black；The metal filler includes metallic fiber and/or metal powder.
Plastic master batch in the conductive plastics is PP(polypropylene), PET(polyester), PA(polyamide), polyethylene (PE),
One or more of polyvinyl chloride (PVC), polystyrene (PS), (propylene -- butadiene -- benzene diene) ABS.
Conductive mesh most preferably of the present invention is by PA(polyamide) it is prepared, the elimination electrostatic interaction for membrane module
Effect is best.
The conductive material of membrane module of the present invention is one kind or several of metal, alloy and inorganic non-metallic conductive material
Kind, specific material is selected as those skilled in the art and is grasped, it can satisfy the whole conductor of formation of the present invention, this
Invention is not specially limited this.
The second object of the present invention is to provide a kind of gaseous jet simulation device that can eliminate electrostatic.
One kind of the present invention can eliminate the gaseous jet simulation device of electrostatic, including membrane module, in the membrane module extremely
Small part is prepared by conductive material, the gaseous jet simulation device further include cover membrane component in the membrane module and with
The conductive mesh that above-mentioned conductive material is in contact.
The gaseous jet simulation device of the present invention for eliminating electrostatic is preferred for the flammable gaseous mixture containing oxygen
Body, wherein imflammable gas include hydrogen,Carbon monoxide, methane, ethane,Propane、Butane, ethylene, propylene, butylene,Acetylene、Third Alkynes, butine,Hydrogen sulfideOne or more of Deng.
Device of the present invention in membrane separating process, passes through conductive mesh in the electrostatic that film surface or film layer gap are accumulated
Membrane module is transferred out, achievees the purpose that eliminate internal electrostatic.
Wherein, the membrane module includes rolled membrane module, tubular membrane component and stacked membrane module.
It is the central tube of the rolled membrane module, outer for rolled membrane module as a kind of technical solution of the invention
Shell and at least one end cap are prepared by conductive material, and the conductive mesh cladding membrane component constitutes its feed side flow-guiding screen and infiltration
Saturating side flow-guiding screen, and connected respectively with the central tube, shell and at least one end cap, make entire membrane module from inside to outside
Form a conductor.
Specifically, placing a feed side flow-guiding screen in the front of membrane component (alternatively referred to as diaphragm), the back side places one
The three-side-seal of flow-guiding screen is surveyed (during another side is with conductive glue in two membrane component back sides and infiltration by per-meate side flow-guiding screen
Heart pipe, central tube are had hole, can be entered in central tube with through hole after feed gas infiltration), a film bag is formed, permeates gas to film
The opening direction of bag is mobile.
Conductive glue of the present invention is made of resin matrix, conducting particles, dispersing additive, auxiliary agent etc..The resin
Matrix is one of epoxy resin, organic siliconresin, polyimide resin, phenolic resin, polyurethane, acrylic resin or several
Kind.The conducting particles can be gold, silver, copper, aluminium, zinc, iron, the powder of nickel and graphite and some conductive compounds.
For tubular membrane component, the shell of the tubular membrane component and at least one sealing ring are prepared by conductive material
Form, the conductive mesh is constituted in tubular membrane elements into intimate is wrapped in by the sleeve of tubular membrane component, and with the shell and extremely
A few sealing ring connects respectively, and entire membrane module is made to form a conductor from inside to outside.
For stacked membrane module, the shell and center-pole of the stacked membrane module prepared by conductive material and
At the conductive mesh is arranged in the form of flow-guiding screen on membrane component surface, and contacts with the shell and center-pole and contact respectively
Connection, makes entire membrane module form a conductor from inside to outside.
The present invention is by surveying flow-guiding screen preparation for the traditional feed side in membrane component up/down surface in membrane module and/or infiltration
At conductive mesh, while meeting the purpose of fluid flow guiding distribution and conducting static electricity.This method is easy to operate, conducting static electricity effect compared with
It is good, it is suitble to flammable explosive gas separation field.
Conductive mesh of the present invention is conductive energy, or has conductive and distribution diversion function netted knot simultaneously
Structure.
Wherein, conductive mesh string diameter is 0.1 ~ 2mm, preferably 0.5 ~ 1mm；Screen distance is 1 ~ 8mm, preferably 2 ~ 5mm.
Conductive mesh material of the present invention is organic material, metal material, inorganic or mixed materials.
Wherein, the organic material, metal material, inorganic or mixed materials are known to those skilled in the art
Common conductive material.
More specifically, it is preferable to which conductive mesh of the present invention uses conductive plastics, the conductive plastics passes through in plastic master
Addition conductive material is prepared in grain, and the conductive mesh surface resistivity made of the conductive plastics is 102~107Ω/m2。
Wherein, the conductive material in the conductive plastics is antistatic filler, carbon system filler or metal filler, institute
Stating antistatic filler includes ethoxylated fatty amine, quarternary ammonium salt compound, fatty acid ester；Carbon system filler includes stone
Ink, carbon fiber and carbon black；The metal filler includes metallic fiber and/or metal powder.
Plastic master batch in the conductive plastics is PP(polypropylene), PET(polyester), PA(polyamide), polyethylene (PE),
One or more of polyvinyl chloride (PVC), polystyrene (PS), (propylene -- butadiene -- benzene diene) ABS.
Conductive mesh most preferably of the present invention is by PA(polyamide) it is prepared, the elimination electrostatic interaction for membrane module
Effect is best.
The conductive material of membrane module of the present invention is one kind or several of metal, alloy and inorganic non-metallic conductive material
Kind, specific material is selected as those skilled in the art and is grasped, it can satisfy the whole conductor of formation of the present invention, this
Invention is not specially limited this.
Conductive plastics is used to the flow-guiding screen of membrane module at present to have not been reported to eliminate the technology country of electrostatic, using this
The technical solution is invented, there is following innovative point:
(1) flow-guiding screen is prepared into conductive mesh, is led so that film internal gas passageways, central tube and end cap etc. become one
Electrostatic can be discharged in time for body, ground connection；
(2) with interspersed wire or paving metal mesh, increase the elimination electrostatic technique such as locating pad made of conductive material and compare,
Reduce the effective area of membrane module, simplified assembly production process improves production efficiency；
(3) Plastic conductive web material matter is soft, avoids film surface caused by introducing wire (net) and destroys；
(4) Plastic conductive net be easier to metal center pipe and metal end face contact, avoid introduce wire (net) cause
Poor contact, prevent security risk；
(5) safe and reliable (under vibration, hygrothermal environment factor) in the long-term use, it will not image surface method (water conservancy diversion
Net surface applies conduction liquid) removing and obscission are generated like that, also avoid the disadvantage of wire (net) corrosion resistance difference.
Detailed description of the invention
Fig. 1 a and b are rolled membrane module structural schematic diagram of the present invention.
Fig. 2 is tubular membrane component structural schematic diagram of the present invention.
Fig. 3 is the stacked membrane module structure schematic diagram of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Following embodiment is only used to illustrate the technical scheme of the present invention and not to limit it, although referring to preferred embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that, it can modify to technical solution of the present invention
Or equivalent replacement should all cover without departing from the objective and range of technical solution of the present invention in claim of the invention
In range.
Embodiment 1
A kind of method that can eliminate gaseous jet simulation device electrostatic is present embodiments provided, wherein the gaseous jet simulation
Device includes membrane module, is at least partly prepared, this implementation by conductive material (conventional conductive material) in the membrane module
Example the method using conductive mesh as the gaseous jet simulation device in feed side flow-guiding screen and/or per-meate side flow-guiding screen and with
The conductive material is in contact.
Embodiment 2
Compared with Example 1, distinctive points are only that, in method described in the present embodiment, feed side flow-guiding screen string diameter is
1mm, aperture 5mm；Per-meate side flow-guiding screen string diameter is 0.5mm, aperture 2mm, and the two is prepared by conductive plastics, wherein
Plastic matrix in using polyvinyl chloride as conductive plastics, the conductive material in conductive plastics are graphite powder.
Embodiment 3
Compared with Example 1, distinctive points are only that, in method described in the present embodiment, feed side flow-guiding screen string diameter is
0.5mm, aperture 2mm；Per-meate side flow-guiding screen string diameter is 0.5mm, aperture 2mm.The two is all made of conductive plastics and is prepared,
Plastic matrix in wherein using polypropylene as conductive plastics, the conductive material in conductive plastics are carbon black.
Embodiment 4
Compared with Example 1, distinctive points are only that, in method described in the present embodiment, feed side flow-guiding screen and per-meate side
Flow-guiding screen is all made of conductive plastics and is prepared, and the plastic master batch in conductive plastics is nylon (PA), and conducting particles is carbon black, into
Material side flow-guiding screen string diameter is 2mm, aperture 8mm；Per-meate side flow-guiding screen string diameter is 0.1mm, aperture 1mm.
Embodiment 5
Present embodiments provide a kind of gaseous jet simulation device that can eliminate electrostatic, film group in the gaseous jet simulation device
Part structural shape is rolling, and as shown in Fig. 1 (b), rolling membrane separation assemblies are in shell, 3, end caps of central tube of component
4 and shell be metal material.Membrane component 1(is alternatively referred to as diaphragm) front place a feed side flow-guiding screen 20, the back side is put
A per-meate side flow-guiding screen 21 is set, per-meate side flow-guiding screen is clipped in two diaphragms, with glue by its three-side-seal, forms a film
Bag, infiltration gas is mobile to the opening direction of film bag, finally collects in heart pipe in a metal.Air inlet side flow-guiding screen passes through one end annular
It is conductively connected net 7 to contact with metal end, metal end is connect with metal shell.Feed side flow-guiding screen, per-meate side flow-guiding screen with
And ring shaped conductive connection net 7 in component both ends is all made of conductive plastics and is prepared, wherein in using polyvinyl chloride as conductive plastics
Plastic matrix, the conductive material in conductive plastics is graphite powder.Feed side flow-guiding screen string diameter is 1mm, aperture 5mm；Infiltration
Side flow-guiding screen string diameter is 0.5mm, aperture 2mm；It is 0.5mm, aperture 1mm that ring shaped conductive, which connects twine diameter,.Per-meate side water conservancy diversion
It is main base that Netcom, which is crossed with epoxy resin, and iron powder is that the conductive glue of conducting particles preparation is fixed on metal center pipe, gold
Belong to central tube to connect with metal end, air inlet side flow-guiding screen is contacted with metal end, and metal end is connect with metal shell, will be whole
A membrane module forms a conductor from inside to outside.
Embodiment 6
Present embodiments provide a kind of gaseous jet simulation device that can eliminate electrostatic, film group in the gaseous jet simulation device
Part structural shape be rolling rolling membrane separation assemblies are fitted into shell as shown in Fig. 1 (b), the metal center pipe 3 of component, outside
Shell and two end caps 4 are metal material.A feed side flow-guiding screen 20 is placed in the front of diaphragm 1, and an infiltration is placed at the back side
Side flow-guiding screen 21, per-meate side flow-guiding screen are clipped in two diaphragms, with glue by its three-side-seal, are formed a film bag, are permeated gas
It is mobile to the opening direction of film bag, finally collect in heart pipe in a metal.Feed side flow-guiding screen, per-meate side flow-guiding screen and component
Ring shaped conductive connection net 7 in both ends is all made of conductive plastics and is prepared, wherein the plastic master in using polypropylene as conductive plastics
Expect, the conductive material in conductive plastics is carbon black.Feed side flow-guiding screen string diameter is 0.5mm, aperture 2mm；Per-meate side flow-guiding screen
String diameter is 0.5mm, aperture 2mm；It is 0.5mm, aperture 2mm that ring shaped conductive, which connects twine diameter,.Per-meate side flow-guiding screen passes through use
Polyimide resin, polyurethane are main base, and graphite is that the conductive glue of conducting particles preparation is fixed on metal center pipe,
Metal center pipe is connect with metal end, and air inlet side flow-guiding screen connects net 7 by both ends ring shaped conductive and contacts with metal end,
Metal end is connect with metal shell, and entire membrane module is formed a conductor from inside to outside.
Embodiment 7
Present embodiments provide a kind of gaseous jet simulation device that can eliminate electrostatic, film group in the gaseous jet simulation device
Part structural shape is that rolling membrane separation assemblies are fitted into shell by rolling as shown in Fig. 1 (a), central tube 3, two ends of component
Lid 4 and shell are metal material.A feed side flow-guiding screen 20 is placed in the front of diaphragm 1, and the back side is placed a per-meate side and led
Drift net 21, per-meate side flow-guiding screen are clipped in two diaphragms, with glue by its three-side-seal, are formed a film bag, are permeated gas to film
The opening direction of bag is mobile, finally collects in heart pipe in a metal.Feed side flow-guiding screen and per-meate side flow-guiding screen are all made of conduction
Plastics are prepared, and the plastic master batch in conductive plastics is nylon (PA), and conducting particles is carbon black, and feed side flow-guiding screen string diameter is
2mm, aperture 8mm；Per-meate side flow-guiding screen string diameter is 0.1mm, aperture 1mm；It is 2mm, aperture that ring shaped conductive, which connects twine diameter,
For 8mm.Per-meate side flow-guiding screen polyimide resin, polyurethane are main base, and graphite is the conducting resinl of conducting particles preparation
In a metal on heart pipe, metal center pipe is connect with metal end for hydropexis, and air inlet side flow-guiding screen and metal end are equipped with conduction
Spring is in close contact conductive mesh and metal end, and metal end is connect entire membrane module shape from inside to outside with metal shell
At a conductor.
Embodiment 8
Present embodiments provide a kind of gaseous jet simulation device that can eliminate electrostatic, film group in the gaseous jet simulation device
Part structural shape is tubular type, as shown in Fig. 2, the interior ceramic tube that sets makees the gas separation membrane element supported, by nylon conduction plastic master
Grain addition carbon black material is processed into conductive plastics net cover cylinder 22, and length sleeve is suitable with membrane tube length, and sleeve diameter is more straight than membrane tube
Diameter is bigger, and convenient for ceramic tube gas separation membrane 11 to be put into conductive plastics net cover cylinder, pipe outer wall is every a distance metal
Silk winds sleeve and pipe outer wall, to guarantee that conductive mesh and ceramic tube contact are close.The both ends of ceramic tube are close with conductive seal circle 6
Envelope, the inside of conductive seal circle and conductive mesh casing-contact, outside are contacted with stainless steel metal shell 5, make entire membrane module at
For a conductor.
Embodiment 9
Present embodiments provide a kind of gaseous jet simulation device that can eliminate electrostatic, film group in the gaseous jet simulation device
Part structural shape is stacked, as shown in figure 3, its shell 51, center-pole 31 are all made of stainless steel metal material and are made into, flow-guiding screen
23 for nylon plastic(s) master batch add machining graphite at the conductive plastics net that is prepared of conductive plastics, the string diameter of flow-guiding screen 23 is
2mm, aperture 8mm.Flow-guiding screen 23 is diaphragm 12 above, and the obverse and reverse of diaphragm 12 is respectively equipped with conductive mesh 23, conductive mesh 23
Inside connect with metal center bar, center-pole is connected with metal shell, makes inside lamination and metal shell is linked to be one and entirely leads
Body.
The above embodiments are only used to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (8)
1. the method that one kind can eliminate gaseous jet simulation device electrostatic, the gaseous jet simulation device includes membrane module, the film
It is at least partly prepared by conductive material in component, which is characterized in that in using conductive mesh as the gaseous jet simulation device
Flow-guiding screen and be in contact with the conductive material；The conductive mesh material is conductive plastics；The conductive mesh string diameter is 0.1
~2mm；Screen distance is 1 ~ 8mm.
2. according to the method described in claim 1, it is characterized by: the conductive mesh string diameter is 0.5 ~ 1mm；Screen distance be 2 ~
5mm。
3. according to the method described in claim 1, it is characterized by: the conductive plastics is led by adding in plastic master batch
Electric material is prepared；The conductive mesh surface resistivity made of the conductive plastics is 102~107Ω/m2。
4. according to the method described in claim 3, it is characterized in that, the conductive material in the conductive plastics is antistatic filling
One or more of agent, carbon system filler or metal filler, the antistatic filler are ethoxylated fatty amine, quaternary ammonium
One or more of salt compound or fatty acid ester；Carbon system filler is one of graphite, carbon fiber or carbon black
Or it is several；The metal filler includes one or both of metallic fiber or metal powder；Plastics in the conductive plastics
Master batch is one of polypropylene, polyester, polyamide, polyethylene, polyvinyl chloride, polystyrene, acrylic-butadiene-benzene diene
Or it is several.
5. one kind can eliminate the gaseous jet simulation device of electrostatic, including membrane module, it is characterised in that: at least portion in the membrane module
Point be prepared by conductive material, the gaseous jet simulation device further include cover membrane component in the membrane module and with it is above-mentioned
The conductive mesh that conductive material is in contact；The membrane module includes rolled membrane module, tubular membrane component and stacked membrane module；Institute
The central tube, shell and at least one end cap for stating rolled membrane module are prepared by conductive material, and the conductive mesh coats membrane element
Part constitutes its feed side flow-guiding screen and per-meate side flow-guiding screen, and contacts respectively with the central tube, shell and at least one end cap
Connection, makes entire membrane module form a conductor from inside to outside.
6. gaseous jet simulation device according to claim 5, it is characterised in that: the shell of the tubular membrane component and at least
One sealing ring is prepared by conductive material, and the conductive mesh constitutes the sleeve of tubular membrane component for tubular membrane elements into intimate packet
It in being rolled in, and is connected respectively with the shell and at least one sealing ring, entire membrane module is made to form one from inside to outside
Conductor.
7. gaseous jet simulation device according to claim 5, it is characterised in that: the shell of the stacked membrane module is in
Core bar is prepared by conductive material, and the conductive mesh is arranged in the form of flow-guiding screen on membrane component surface, and with the shell
It is connected respectively with center-pole contact, entire membrane module is made to form a conductor from inside to outside.
8. the gaseous jet simulation device according to any one of claim 5 ~ 7, it is characterised in that: the conduction of the membrane module
Material is the one or more of metal, alloy and inorganic non-metallic conductive material.
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| CN201510203837.0A CN104785075B (en) | 2015-04-27 | 2015-04-27 | A kind of gaseous jet simulation device and method for eliminating electrostatic |
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| CN105113117B (en) * | 2015-09-18 | 2018-04-06 | 南京九思高科技有限公司 | A kind of antistatic flow-guiding screen and its preparation method and application |
| CN105413226B (en) * | 2015-12-23 | 2018-05-11 | 南京九思高科技有限公司 | Air separator of oxygenerator and technique based on embrane method coupling condensation adsorption |
| CN109664530B (en) * | 2018-12-19 | 2021-06-25 | 江苏久膜高科技股份有限公司 | Improved anti-static flow guide net and preparation method and application thereof |
| CN114950141B (en) * | 2022-06-08 | 2024-01-26 | 林金龙 | Conductive separation film bag and application thereof |
| CN115364704B (en) * | 2022-10-25 | 2023-01-03 | 天津工业大学 | Polyacrylonitrile-carbon nano tube electroactive film with selective oxidation function and application |
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| CN201956415U (en) * | 2010-11-11 | 2011-08-31 | 中国人民解放军63971部队 | Deposition type electrode |
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| JPS5536368B2 (en) * | 1972-12-11 | 1980-09-20 | ||
| JPS5628603A (en) * | 1979-08-14 | 1981-03-20 | Nitto Electric Ind Co Ltd | Liquid separating device |
| JPS59199003A (en) * | 1983-04-26 | 1984-11-12 | Asahi Chem Ind Co Ltd | Membraneous separation module for filtering oil |
| JP2002191944A (en) * | 2000-12-25 | 2002-07-10 | Toray Ind Inc | Fluid separating element |
| CN101239279B (en) * | 2007-11-19 | 2010-12-15 | 天邦膜技术国家工程研究中心有限责任公司 | Antistatic rolling diaphragm separator and preparation thereof |
| CN201164794Y (en) * | 2008-02-28 | 2008-12-17 | 大连欧科膜技术工程有限公司 | Laminated gas separation film assembly |
| KR101870307B1 (en) * | 2011-12-02 | 2018-06-22 | 도레이 카부시키가이샤 | Separation membrane element and production method for same |
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| CN201956415U (en) * | 2010-11-11 | 2011-08-31 | 中国人民解放军63971部队 | Deposition type electrode |
| CN202205847U (en) * | 2010-11-23 | 2012-04-25 | 中国人民解放军63971部队 | Lead acid battery grid |
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Effective date of registration: 20201106 Address after: No.1, yanchuang garden, Nanjing area, China (Jiangsu) pilot Free Trade Zone, Nanjing, Jiangsu Province, 211800 Patentee after: Jiangsu jiumo Hi Tech Co., Ltd Address before: 211800 No. 8 Fenghuang Road, Pukou Economic Development Zone, Nanjing, Jiangsu Patentee before: NANJING JIUSI HIGH-TECH Co.,Ltd. |