CN106435788A - Novel porous hollow fiber membrane spinneret device - Google Patents
Novel porous hollow fiber membrane spinneret device Download PDFInfo
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- CN106435788A CN106435788A CN201610888306.4A CN201610888306A CN106435788A CN 106435788 A CN106435788 A CN 106435788A CN 201610888306 A CN201610888306 A CN 201610888306A CN 106435788 A CN106435788 A CN 106435788A
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- core
- core liquid
- spinning head
- liquid
- hole
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
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- Mechanical Engineering (AREA)
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention provides a novel porous hollow fiber membrane spinneret device, including a feeding plate, a core liquid guide plate, a spinneret plate and a separate spinneret; wherein, the feeding plate is provided on the upper surface of the core liquid guide plate, the spinneret plate is provided on the lower surface of the core liquid guide plate; a number of the separate spinnerets are detachably provided in the assembly holes of the spinnerets of the spinneret plate. In the device the quantity of the separate spinneret is more than one, forming a porous combination type, the structure of the device is simple, the preparation process is simple, in the production process of spinnerets, the flow of the core liquid and the material liquid is more uniform, the membranes has uniform thickness, and the consistency is good.
Description
Technical field
A kind of the present invention relates to hollow-fibre membrane, in particular it relates to novel porous hollow-fibre membrane spinning appts.
Background technology
Hollow-fibre membrane is the core of the field devices such as water process, Hemodialysis, desalinization, gas separation, liquid separation
Part, is applied to reverse osmosis membrane, micro-filtration membrane, a kind of important new material of the aspect such as NF membrane and ultrafilter membrane, environmental protection water process,
The fields such as Hemodialysis, gas separation are gradually increasingly widely applied.With will to the quality of hollow-fibre membrane and performance
The raising that asks, the increase of demand, domestic existing production technology and equipment are increasingly difficult to meet Production requirement, most of according to
Bad import.
High-performance hollow fibrous membrane improve production efficiency how is produced, reduces production cost, it has also become in research
Hollow fiber film field is most popular, be also one of problem of most critical.The production forming process of hollow-fibre membrane, simplified summary is just
It is that spinning liquid and core liquid are injected spinning head from the diverse location of spinning head pedestal, by the special construction inside spinning head,
The thread thing of doughnut being sprayed from spray webbing skull is commonly called as film silk.From the point of view of whole film-forming process, except membrane equipment and technique are joined
Outside number impact film silk performance, the quality of spinning head directly influences some key performances and the parameter of film silk.Therefore, conjunction be obtained
The hollow fiber film thread of suitable size, outward appearance and function admirable, the nozzle design of high-quality is top priority.
Domestic spinning hollow-fibre membrane major part uses single hole spinning head at present, during single hole spinning head spinning every time only
A silk can be gone out, production efficiency is extremely low, it is impossible to which scale is produced in a large number.Existing multi-holed jet is it is impossible to ensure that enter into each
The feed liquid of the core liquid of core liquid pipe and each spinneret orifice of entrance keeps identical pressure and uniformity, thus also affects the steady of product quality
Qualitative and concordance, such as patent documentation CN 204570108U, CN101372765A.In some multi-holed jets, it is directed to every
Individual spinneret orifice arranges independent spinneret, although the concentricity of the corresponding core liquid pipe of spinneret orifice so can be adjusted respectively,
To ensure the uniformity of the thickness of film silk, improve quality, but operate excessively loaded down with trivial details, and, this kind of spinning head, even if adjust
Good, after a period of time, still can produce film silk has meeting eccentric, must readjust again.It is envisioned that if there are hundreds of
Individual hole, thousand of holes always need to adjust every a period of time, and workload has much, and this is significant adverse to scale metaplasia
Produce, such as patent documentation CN101372765, CN204803446U.In some multi-holed jets, core liquid pipe is Fixed Design, this
Sample such as indivedual core liquid pipes is blocked or is damaged, it is necessary to changed together with feed liquid, the input of core liquid and storage part, is wasted very big
And change inconvenient, such as patent documentation CN204803446U.In addition, in most multi-holed jets, whether core liquid pipe is for can
Disassembly design, such as patent documentation CN101372765A, or the multi-holed jet for being combined with the little spinning head of multiple single holes, such as
Patent documentation CN204570108U, is running into indivedual core liquid pipes or the blocking of single hole little shower nozzle or is damaging, it is necessary to shutdown maintenance, while
During maintenance, need to take whole multi-holed jet apart, maintenance time is long, and difficulty is big.
Content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of novel porous hollow-fibre membrane spray webbing dress
Put.
According to the novel porous hollow-fibre membrane spinning appts that the present invention is provided, including feedboard, core liquid deflector, spray webbing
Plate and independent spinning head；
Wherein, the feedboard is arranged on the upper surface of the core liquid deflector, and the spinneret is arranged on the core
The lower surface of liquid deflector；
In the dismountable spinning head assembly hole for being arranged on the spinneret of several described independent spinning heads.
Preferably, the centrally disposed liquor inlet in the feedboard upper surface.
Preferably, the open core sap cavity in upper end is provided with, the bottom of chamber of the core sap cavity is provided with the core liquid deflector
The core liquid tap hole of several insertion core liquid deflectors；
The open core sap cavity in upper end is provided with the core liquid deflector, and the bottom of chamber of the core sap cavity is provided with several and passes through
The core liquid tap hole of obturator liquid deflector；
Preferably, when the independent spinning head is provided with core liquid mozzle, core liquid mozzle is by the core liquid shunting
Hole is penetrated in the core sap cavity；When the independent spinning head is not provided with core liquid mozzle, set in each core liquid tap hole upper end
The core liquid flow equalizing ring being equipped with less than core sap cavity；
Boss is provided with the core sap cavity, is provided with the liquor inlet of feedboard and is connected and runs through in the boss
The material liquid flowing channel of core liquid deflector；
The one core liquid import of side horizontally set of the core liquid deflector, the interior axle along core liquid import of the core liquid deflector
Direction is provided with the core liquid passage with core liquid inlet communication；Core liquid channel end is provided with the core liquid passage for connecting with core sap cavity
Outlet.
Each core liquid is arranged in the way of core liquid flow equalizing ring or core liquid mozzle are by equal height and less than core sap cavity
During tap hole upper end, core sap cavity is divided into i section, per section of sectional area Sai=WaiHai, the height of per section of core sap cavity and width dimensions are closed
System：
Wa1Ha1：Wa2Ha2：Wa3Ha3：…：WaiHai=n：n-2K：n-4K：…：n-2(i-1)K
Wherein, Wai、HaiRepresent width, the depth of core sap cavity respectively；K is the core liquid flow equalizing ring of per section of core sap cavity or core liquid
The quantity of mozzle, n is the sum of core liquid flow equalizing ring or core liquid mozzle；
As core sap cavity sectional area Sai=WaiHaiIn the case of constant, aspect ratio h of core liquid flow equalizing ring or core liquid mozzlea1：
ha2：ha3：…：hai=n：n-2K：n-4K：…：N-2 (i-1) K, wherein, Wai、HaiRepresent the width of core sap cavity, h respectivelyaiRepresent
Core liquid flow equalizing ring or the height x depth of core liquid mozzle, K is the quantity of the core liquid flow equalizing ring of per section of core sap cavity or core liquid mozzle,
N is the sum of core liquid flow equalizing ring or core liquid mozzle.
Preferably, be provided with the open feed liquid chamber in upper end on the spinneret, the bottom of chamber in feed liquid chamber be provided with some with
The corresponding spinning head assembly hole in core liquid shunting hole site；
In feed liquid intracavity, the upside of the spinning head assembly hole be provided with coaxial with spinning head assembly hole and with diameter greater than
The feed liquid flow equalizing ring of spinning head assembly hole, the top of the feed liquid flow equalizing ring is highly less than feed liquid chamber higher than the bottom of chamber in feed liquid chamber
Depth；
In the bottom of spinneret, the surrounding of each spinning head assembly hole is provided with screwed hole；Or in spinning head assembly hole
Female thread is inside provided with.
Each spinning head assembly hole upper end is arranged in the way of feed liquid flow equalizing ring is by equal height and less than feed liquid chamber
When, feed liquid chamber is divided into i section, per section of sectional area Sbi=WbiHbi, the height in per section of feed liquid chamber and width dimensions relation：
Wb2Hb2：Wb2Hb2：Wb3Hb3：…：WbiHbi=n：n-2K：n-4K：…：n-2(i-1)K
Wherein, Wbi、HbiRepresent width, the depth in feed liquid chamber respectively；K is the feed liquid flow equalizing ring number in per section of feed liquid chamber, and n is
Feed liquid flow equalizing ring sum；
As feed liquid chamber sectional area Sbi=WbiHbiIn the case of constant, aspect ratio h of feed liquid flow equalizing ringb1：hb2：hb3：…：hbi
=n：n-2K：n-4K：…：N-2 (i-1) K, wherein, Wbi、HbiRepresent the width in feed liquid chamber, h respectivelybiRepresent feed liquid flow equalizing ring
Height x depth, K is the feed liquid flow equalizing ring number in per section of feed liquid chamber, and n is feed liquid flow equalizing ring sum.
Preferably, the independent spinning head includes spinning head main body, spinning head miscellaneous function ring and core liquid mozzle；
Wherein, the core liquid mozzle connects the top end face of the spinning head main body；The spinning head miscellaneous function ring is even
Connect the bottom face of the spinning head main body；
The side of the spinning head main body is provided with feed liquid hand-hole, and the feed liquid hand-hole connects the spinning head assembling
Hole, is provided with the spray webbing forming hole being connected with feed liquid hand-hole in spinning head main body bottom；
A core liquid pipe is provided with the spinning head main body, and core liquid pipe is located in spray webbing molding in the hole and is led with the core liquid
Flow tube is connected to form core liquid runner；Core sap cavity described in the core liquid flow passage.
Preferably, also include shower nozzle installing plate；
Wherein, the shower nozzle installing plate is arranged on the downside of the independent spinning head, by spacing for the independent spinning head
The spinning head assembles in the hole；
The installing plate matrix surrounding is provided with the peace corresponding with the screwed hole of spinning head assembly hole on the spinneret
The external screw thread corresponding with the female thread of spinning head assembling in the hole setting is provided with dress plate fixing hole, or installing plate matrix.
Preferably, on the shower nozzle installing plate matrix, installing plate boss is provided with；The installing plate boss is provided with always
Wear the shower nozzle installing hole of installing plate boss and installing plate matrix；
The bottom of the independent spinning head is arranged on the spinning head and installs in the hole.
Compared with prior art, the present invention has following beneficial effect：
1st, in the present invention, the quantity of independent spinning head is multiple, forms porous assembled, simple structure, manufacturing process letter
Single, in the production process of spray webbing, core liquid, feed liquid flowing evenly, film silk thickness is uniform, and concordance is good；
2nd, the multiple independent spinning heads of the present invention constitute spray webbing module design, can realize carrying out spinneret orifice on spray webbing module
The infinite expanding of quantity, it is possible to achieve up to a hundred, thousands of film silks, breakthrough raising production can be gone out on a spray webbing module simultaneously
Efficiency；
3rd, in the present invention independent spinning head core liquid mozzle (or on core liquid deflector arrange core liquid flow equalizing ring) energy
The core liquid of entrance spray webbing film group is enough made at the same pressure while uniformly flowing into each independent spinning head, it is ensured that the flowing of core liquid
Equal habit and concordance, meanwhile, the feed liquid flow equalizing ring for arranging on spinneret in spray webbing film group, the feed liquid of feed liquid intracavity can be made
Flowed simultaneously in independent spinning head at the same pressure, it is ensured that the uniformity of feed solution flow and concordance；Due to each
Film silk is ultimately formed by the core liquid runner of independent spinning head oneself, material liquid flowing channel, therefore, as long as qualified independence
Spinning head is installed on spray webbing module, it becomes possible to ensure to obtain qualified film silk, it is not necessary to is done other regulations again, is greatly reduced work
Measure；
4th, the knockdown structure design of the present invention, reduces production and assembly difficulty, when independent spinning head blocking or damage individually
When, maintenance and the replacing of single spinning head on the premise of can not pulling down or not take multi-holed jet apart on a production line, is realized,
Subtract reduced-maintenance time and materials cost.
Description of the drawings
The detailed description that with reference to the following drawings, non-limiting example is made by reading, the further feature of the present invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the outboard structure schematic diagram of the present invention；
Fig. 2 is the schematic partial cross-sectional view of the present invention；
Fig. 3 is the structural representation of SMIS liquid deflector of the present invention；
Fig. 4 is the structural representation of spinneret in the present invention；
Fig. 5, Fig. 6 are shown as a kind of structural representation of independent spinning head in the present invention；
Fig. 7 is the schematic cross-section of shower nozzle installing plate in the present invention；
Fig. 8 (a), Fig. 8 (b) show the structural representation for another kind of independent spinning head of the present invention；
Fig. 9 (a) is that in the present invention, a kind of independent spinning head threadeds sectional view with shower nozzle installing plate；
Fig. 9 (b) is that in the present invention, another kind of independent spinning head threadeds sectional view with shower nozzle installing plate；
Figure 10 is the assembled state sectional view that in the present invention, independent spinning head is not provided with core liquid mozzle.
In figure：
1- feedboard；2- core liquid deflector；3- spinneret；4- independence spinning head；5- shower nozzle installing plate；6-O type sealing ring；
11- liquor inlet；21- core sap cavity；22- core liquid tap hole；23- cylinder boss；24- material liquid flowing channel；25- core liquid import；26- core
Liquid passage；27- core liquid channel outlet；28- core liquid flow equalizing ring；31- feed liquid chamber；32- spinning head assembly hole；33- feed liquid flow equalizing ring；
34- screwed hole；41- spinning head main body；42- spinning head miscellaneous function ring；43- core liquid mozzle；44- feed liquid hand-hole；45- sprays
Silk forming hole；46- core liquid pipe；47- core liquid runner；48- seal groove；49- temperature-adjusting device/sensor；51- installing plate base
Body；52- installing plate boss；53- installing plate fixing hole；54- spinning head installing hole.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some deformation can also be made and is improved.These belong to the present invention
Protection domain.
In the present embodiment, as shown in figs. 1-7.The novel porous hollow-fibre membrane spinning appts that the present invention is provided, including
Feedboard 1, core liquid deflector 2, spinneret 3 and independent spinning head 4；
Wherein, a centrally disposed liquor inlet 11 of 1 upper surface of the feedboard, is provided with the core liquid deflector 2
The open core sap cavity 21 in upper end, is provided with the core liquid tap hole 22 of some insertion core liquid deflectors 2, in core in 21 bottom of core sap cavity
The center of sap cavity 21 is provided with a cylinder boss 23, and being provided centrally with of the cylinder boss 23 is connected with liquor inlet 11
And concentric and insertion core liquid deflector 2 material liquid flowing channel 24.In 2 side horizontally set of the core liquid deflector, one core liquid import
Axial direction in 25, and the core liquid deflector 2 along core liquid import 25 is provided with the core liquid passage for connecting with core liquid import 25
26,26 end of core liquid passage is provided with the core liquid channel outlet 27 for connecting with core sap cavity 21.Upper end is provided with the spinneret 3
Open feed liquid chamber 31, is provided with some spinning head assembly holes corresponding with 22 position of core liquid tap hole in 31 bottom of feed liquid chamber
32, in feed liquid chamber 31, the upside of each spinning head assembly hole 32, it is provided with coaxial with spinning head assembly hole 32 and diameter is big
In the feed liquid flow equalizing ring 33 of spinning head assembly hole 32,33 top of feed liquid flow equalizing ring is highly less than higher than the bottom of chamber in feed liquid chamber
31 depth of feed liquid chamber.In the bottom of spinneret 3, the surrounding of each spinning head assembly hole 32 is provided with for mounting spray head installing plate
5 screwed hole 34.Independent spinning head 4 is provided with each described spinning head assembly hole 32, the independent spinning head 4 described in each
It is fixed on spinneret 3 by shower nozzle installing plate 5.
As shown in Figure 5, Figure 6, the side of the spinning head main body 41 is circumferentially evenly arranged with some feed liquid hand-holes 44,
The spray webbing forming hole 45 being connected with feed liquid hand-hole 44 is provided with the bottom centre of spinning head main body 41, in spinning head main body
A core liquid pipe 46 is provided with 41, core liquid pipe 46 is located in spray webbing forming hole 45 and coaxial.It is provided with the core liquid pipe 46
One is coaxial therewith and is through to the core liquid runner 47 of core liquid mozzle 43.The core liquid mozzle 43 is arranged on spinning head main body 41
Top co-axial.The seal groove 48 of an annular is provided with 41 top of spinning head main body.It is provided with seal groove 48 O-shaped
Sealing ring.The spinning head miscellaneous function ring 42 is a cylinder ring, is arranged on 41 bottom of spinning head main body co-axial.Institute
State in spinning head miscellaneous function ring 42 and the sensor such as temperature-adjusting device or temperature, measurement 49 can be set.Work(is aided in spinning head
O-ring seal can be provided with the outside of ring 42.
As shown in fig. 7, the installing plate matrix 51 be a cylinder, 51 top center of installing plate matrix be provided with one with
Its coaxial cylindrical installing plate boss 52, is provided centrally with one through installing plate boss 52 and installing plate in installing plate boss 52
The spinning head installing hole 54 of matrix 51, spinning head installing hole 54 is coaxial with installing plate matrix 51 and installing plate boss 52, is installing
21 surrounding of plate matrix, is provided with the installing plate fixing hole 53 corresponding with screwed hole 34.
After independent spinning head 4 is in spinning head installing hole 54, spinning head assembly hole 32 is inserted from 3 bottom of spinneret
Interior, and the core liquid mozzle 43 on independent spinning head 4 is located in the core liquid tap hole 22 on core liquid deflector 2, then
Installing plate fixing hole 53 is locked by bolt, in screwed hole 34, independent spinning head 4 is fixed on spinneret 3.Such design
So that, can individually independent spinning head 4 is pulled down in the case of whole spray webbing module is not taken apart, keeped in repair and changed, section
Cost-saving and time.
When the novel porous hollow-fibre membrane spinning appts for being provided using the present invention, in spinning process, feed liquid is from entering
The liquor inlet 11 of flitch 1 is flowed into, and under pressure and action of gravity, through material liquid flowing channel 24, flows into the feed liquid chamber of spinneret 3
31, due to feed liquid flow equalizing ring 33 being provided with feed liquid chamber 31, flow into the feed liquid in feed liquid chamber 31, can only first be paved with whole feed liquid chamber
31, with the increase of reduction of feed volume, feed liquid thickness increases, and when the thickness of feed liquid exceedes 33 height of feed liquid flow equalizing ring, feed liquid is just simultaneously
With identical pressure, flowed in each spinning head assembly hole 32 by feed liquid flow equalizing ring 33, due to the effect of O-ring seal, expect
Liquid can only stream enter the feed liquid hand-hole 44 of each independent spinning head 4, uniformly in the form of the feed liquid stream from each spray webbing forming hole
45 spray.
On the other hand, core liquid flows into spinning head from the core liquid import 25 of 2 side of core liquid deflector, under pressure, enters
Core liquid passage 26 is crossed, is overflowed from core liquid channel outlet 27 in the core sap cavity 21 for flowing into core liquid deflector 2, due to O-ring seal
Effect, with the increase of core liquid measure, core liquid thickness increases, when the high knockout liquid mozzle 43 of the thickness of core liquid, core liquid just and meanwhile with
Identical pressure, flows into each spinning head core liquid mozzle 43 and enters in independent body spinning head 4, through core liquid runner 47, from often
Flow out in individual core liquid pipe 46.
As 46 diameter of core liquid pipe is less than the diameter of spray webbing forming hole 45, therefore core liquid stream is surrounded by feed liquid stream so that material
Liquid stream forms tubulose, so as to the hollow film fiber silk needed for being formed in operation afterwards.
In the present embodiment, core sap cavity, core liquid flow equalizing ring or core liquid mozzle, feed liquid chamber, feed liquid flow equalizing ring relative dimensions
Relation can be derived by manner below：
When the 1st, being provided with the open core sap cavity in upper end on core liquid deflector, size relationship is pushed away by manner below
Lead：
(1) in the way of core liquid flow equalizing ring or core liquid mozzle are by equal height and less than core sap cavity, each core is arranged on
During liquid tap hole upper end, height and the width dimensions relation of core sap cavity need to be determined, specific as follows：
Core sap cavity 21 is divided into i section, per section of sectional area Sai=WaiHai, wherein Wai、HaiRepresent core sap cavity body respectively
Width and depth.Per section is symmetrically installed K root core liquid flow equalizing ring or core liquid mozzle, per water inlet in the middle of side (I) section, then n root altogether
Core liquid flow equalizing ring or core liquid mozzle；Working medium density p (kg/m3)；Mass flow G (kg/s)；Volume flow q (m3/ s) because being
Liquid thinks incompressible, so density is constant, then volume equally all can be increased and decreased with quality.Core liquid flow equalizing ring or core liquid
Mozzle interior diameter d0(mm), inner section S0(m2), per root core liquid flow equalizing ring or core liquid mozzle flow is equal, i.e. flow velocity V (m/
S) equal, then：Total flow is G, per root core liquid flow equalizing ring or core liquid mozzle：
G0=G/n or q0=q/n,
q0=V0S0=V0π(d0/2)2/106,
Wherein, S0For core liquid flow equalizing ring or the sectional area of core liquid mozzle；
Then：First paragraph pipe flow amount is：q0N/2=Va1Sa1
(V0π(d0/2)2/106) n/2=Va1(Wa1Ha1/4)/106
So Wa1HA1=nπV0d0 2/2Va1
Second segment pipe flow amount is：
q0n/2-K q0=(n/2-k) q0=Va2Sa2
(n/2-k)(V0π(d0/2)2/106)=Va2(Wa2Ha2/4)/106
So Wa2HA2=(n-2K)πV0d0 2/2Va2
W by that analogya3Ha3=(n-4K) π V0d0 2/2Va3
……
WaiHai=(n-2 (i-1) K) π V0d0 2/2Vai
Need the flow of each core liquid flow equalizing ring or core liquid mozzle equal, i.e. Va1=Va2=Va3...=Vai；
So, per section of height of core sap cavity 21 and width dimensions should meet following conditions：
Wa1Ha1：Wa2Ha2：Wa3Ha3：…：WaiHai=n：n-2K：n-4K：…：n-2(i-1)K.
Further, as per section of width W of core sap cavity 21aiWhen keeping constant, then the aspect ratio of 21 per section of core sap cavity is
Ha1：Ha2：Ha3：…：Hai=n：n-2k：n-4k：…：n-2(i-1)K.
(2) as core sap cavity sectional area Sai=WaiHaiIn the case of constant, the aspect ratio of core liquid flow equalizing ring or core liquid mozzle
ha1：ha2：ha3：…：hai=n：n-2K：n-4K：…：N-2 (i-1) K (the derivation mode of this formula is same as described above), wherein,
Wai、HaiRepresent the width of core sap cavity, h respectivelyaiRepresent the height x depth of core liquid flow equalizing ring or core liquid mozzle, K is per section of core liquid
The core liquid flow equalizing ring in chamber or the quantity of core liquid mozzle, n is the sum of core liquid flow equalizing ring or core liquid mozzle.
When the 2nd, being provided with the open feed liquid chamber in upper end on spinneret, size relationship is derived by manner below：
(1) it is arranged on each spinning head assembly hole in the way of feed liquid flow equalizing ring is by equal height and less than feed liquid chamber
During end, feed liquid chamber is divided into i section, per section of sectional area Sbi=WbiHbi, the height in per section of feed liquid chamber and width dimensions relation：
Wb2Hb2：Wb2Hb2：Wb3Hb3：…：WbiHbi=n：n-2K：n-4K：…：N-2 (i-1) K (the derivation mode of this formula
Same as described above)
Wherein, Wbi、HbiRepresent width, the depth in feed liquid chamber respectively；K is the feed liquid flow equalizing ring number in per section of feed liquid chamber, and n is
Feed liquid flow equalizing ring sum；
(2) as feed liquid chamber sectional area Sbi=WbiHbiIn the case of constant, aspect ratio h of feed liquid flow equalizing ringb1：hb2：
hb3：…：hbi=n：n-2K：n-4K：…：N-2 (i-1) K (the derivation mode of this formula is same as described above), wherein, Wbi、HbiPoint
Not Biao Shi feed liquid chamber width, hbiRepresent the height x depth of feed liquid flow equalizing ring, K is the feed liquid flow equalizing ring number in per section of feed liquid chamber, and n is
Feed liquid flow equalizing ring sum.
As shown in figure 8, in variation, miscellaneous function ring in independent spinning head 4 with diameter greater than spinning head main body 41
Diameter.
As shown in Fig. 9 a, 9b, in variation, shower nozzle installing plate 5 is provided with external thread structure, while on spinneret 3 not
It is provided with screwed hole again, but in spinning head assembly hole 32, female thread corresponding with shower nozzle installing plate 5 is set.Install
Plate 5 is fixed with spinneret 3 by carrying the female thread that external screw thread is screwed in spinning head assembly hole 32.
As shown in Figure 10, in variation, two kinds of independent spinning heads 4, core liquid mozzle 43 is omitted, but in core liquid water conservancy diversion
Core liquid flow equalizing ring 28 is provided with plate 2, can equally realize the purpose that core liquid simultaneously enters independent spinning head in equal pressure.Institute
State the inner side that core liquid tap hole 22 is arranged on the core liquid flow equalizing ring 28；Core liquid pipe 46 be located in spray webbing molding in the hole and with described
Core liquid tap hole 22 is connected.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various modifications or modification within the scope of the claims, this not shadow
Ring the flesh and blood of the present invention.
Claims (9)
1. a kind of novel porous hollow-fibre membrane spinning appts, it is characterised in that including feedboard, core liquid deflector, spinneret
And independent spinning head；
Wherein, the feedboard is arranged on the upper surface of the core liquid deflector, and the spinneret is arranged on the core liquid and leads
The lower surface of stream plate；
In the dismountable spinning head assembly hole for being arranged on the spinneret of several described independent spinning heads.
2. novel porous hollow-fibre membrane spinning appts according to claim 1, it is characterised in that the feedboard upper end
The centrally disposed liquor inlet in face.
3. novel porous hollow-fibre membrane spinning appts according to claim 1, it is characterised in that the core liquid deflector
On be provided with the open core sap cavity in upper end, the bottom of chamber of the core sap cavity is provided with the core liquid shunting of several insertion core liquid deflectors
Hole；
When the independent spinning head is provided with core liquid mozzle, core liquid mozzle penetrates the core by the core liquid tap hole
In sap cavity；When the independent spinning head is not provided with core liquid mozzle, it is provided with less than core liquid in each core liquid tap hole upper end
The core liquid flow equalizing ring in chamber；
Boss is provided with the core sap cavity, is provided with the liquor inlet of feedboard and is connected and through core liquid in the boss
The material liquid flowing channel of deflector；
The one core liquid import of side horizontally set of the core liquid deflector, along the axial direction side of core liquid import in the core liquid deflector
To the core liquid passage being provided with core liquid inlet communication；Core liquid channel end is provided with the core liquid passage for being connected with core sap cavity and goes out
Mouthful.
4. novel porous hollow-fibre membrane spinning appts according to claim 1, it is characterised in that set on the spinneret
The open feed liquid chamber in upper end is equipped with, the bottom of chamber in feed liquid chamber is provided with some spinning head groups corresponding with core liquid shunting hole site
Dress hole；
In feed liquid intracavity, the upside of the spinning head assembly hole is provided with coaxial with spinning head assembly hole and with diameter greater than spray webbing
The feed liquid flow equalizing ring of head assembly hole, the top of the feed liquid flow equalizing ring is highly less than the depth in feed liquid chamber higher than the bottom of chamber in feed liquid chamber
Degree；
In the bottom of spinneret, the surrounding of each spinning head assembly hole is provided with screwed hole；Or set in spinning head assembling in the hole
It is equipped with female thread.
5. novel porous hollow-fibre membrane spinning appts according to claim 1, it is characterised in that the independent spinning head
Including spinning head main body, spinning head miscellaneous function ring and core liquid mozzle；
Wherein, the core liquid mozzle connects the top end face of the spinning head main body；The spinning head miscellaneous function ring connects institute
State the bottom face of spinning head main body；
The side of the spinning head main body is provided with feed liquid hand-hole, and the feed liquid hand-hole connects the spinning head assembly hole,
The spray webbing forming hole being connected with feed liquid hand-hole is provided with spinning head main body bottom；
Be provided with a core liquid pipe in the spinning head main body, core liquid pipe be located in spray webbing molding in the hole and with the core liquid mozzle
It is connected to form core liquid runner；Core sap cavity described in the core liquid flow passage.
6. novel porous hollow-fibre membrane spinning appts according to claim 4, it is characterised in that also include that shower nozzle is installed
Plate；
Wherein, the shower nozzle installing plate is arranged on the downside of the independent spinning head, will be spacing described for the independent spinning head
Spinning head assembles in the hole；
The installing plate matrix surrounding is provided with the installing plate corresponding with the screwed hole of spinning head assembly hole on the spinneret
The external screw thread corresponding with the female thread of spinning head assembling in the hole setting is provided with fixing hole, or installing plate matrix.
7. novel porous hollow-fibre membrane spinning appts according to claim 6, it is characterised in that the shower nozzle installing plate
Installing plate boss is provided with matrix；The installing plate boss is provided with one through installing plate boss and the shower nozzle of installing plate matrix
Installing hole；
The bottom of the independent spinning head is arranged on the spinning head and installs in the hole.
8. novel porous hollow-fibre membrane spinning appts according to claim 3, it is characterised in that
Each core liquid shunting is arranged in the way of core liquid flow equalizing ring or core liquid mozzle are by equal height and less than core sap cavity
During the upper end of hole, core sap cavity is divided into i section, per section of sectional area Sai=WaiHai, the height of per section of core sap cavity and width dimensions relation：
Wa1Ha1：Wa2Ha2：Wa3Ha3：…：WaiHai=n：n-2K：n-4K：…：n-2(i-1)K
Wherein, Wai、HaiRepresent width, the depth of core sap cavity respectively；K is the core liquid flow equalizing ring of per section of core sap cavity or core liquid mozzle
Quantity, n is the sum of core liquid flow equalizing ring or core liquid mozzle；
As core sap cavity sectional area Sai=WaiHaiIn the case of constant, aspect ratio h of core liquid flow equalizing ring or core liquid mozzlea1：ha2：
ha3：…：hai=n：n-2K：n-4K：…：N-2 (i-1) K, wherein, Wai、HaiRepresent the width of core sap cavity, h respectivelyaiRepresent core liquid
Flow equalizing ring or the height x depth of core liquid mozzle, K is the quantity of the core liquid flow equalizing ring of per section of core sap cavity or core liquid mozzle, and n is
Core liquid flow equalizing ring or the sum of core liquid mozzle.
9. novel porous hollow-fibre membrane spinning appts according to claim 4, it is characterised in that
When being arranged on each spinning head assembly hole upper end in the way of feed liquid flow equalizing ring is by equal height and less than feed liquid chamber, material
Sap cavity is divided into i section, per section of sectional area Sbi=WbiHbi, the height in per section of feed liquid chamber and width dimensions relation：
Wb2Hb2：Wb2Hb2：Wb3Hb3：…：WbiHbi=n：n-2K：n-4K：…：n-2(i-1)K
Wherein, Wbi、HbiRepresent width, the depth in feed liquid chamber respectively；K is the feed liquid flow equalizing ring number in per section of feed liquid chamber, and n is that feed liquid is equal
Stream ring sum；
As feed liquid chamber sectional area Sbi=WbiHbiIn the case of constant, aspect ratio h of feed liquid flow equalizing ringb1：hb2：hb3：…：hbi=n：n-
2K：n-4K：…：N-2 (i-1) K, wherein, Wbi、HbiRepresent the width in feed liquid chamber, h respectivelybiRepresent the highly deep of feed liquid flow equalizing ring
Degree, K is the feed liquid flow equalizing ring number in per section of feed liquid chamber, and n is feed liquid flow equalizing ring sum.
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| CN108517574A (en) * | 2018-06-04 | 2018-09-11 | 宁波建嵘科技有限公司 | A kind of spliced hollow tunica fibrosa spinneret |
| CN111068521A (en) * | 2019-12-31 | 2020-04-28 | 天津膜天膜科技股份有限公司 | Film making assembly capable of being transversely widened |
| CN111151142A (en) * | 2019-12-31 | 2020-05-15 | 天津膜天膜科技股份有限公司 | Multifunctional lapping film-making assembly |
| US20220339585A1 (en) * | 2019-12-23 | 2022-10-27 | Gambro Lundia Ab | Spinneret |
| CN116356437A (en) * | 2023-04-04 | 2023-06-30 | 南京助天中科科技发展有限公司 | Insertion tube type porous spinneret |
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