CN203112978U - Novel spinning nozzle of hollow fiber film - Google Patents
Novel spinning nozzle of hollow fiber film Download PDFInfo
- Publication number
- CN203112978U CN203112978U CN 201320059736 CN201320059736U CN203112978U CN 203112978 U CN203112978 U CN 203112978U CN 201320059736 CN201320059736 CN 201320059736 CN 201320059736 U CN201320059736 U CN 201320059736U CN 203112978 U CN203112978 U CN 203112978U
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- China
- Prior art keywords
- guide hole
- material guide
- material guiding
- guiding hole
- spinneret orifice
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a novel spinning nozzle of a hollow fiber film. The novel spinning nozzle of the hollow fiber film comprises a feeding piece and a spinning piece, wherein the feeding piece and the spinning piece are installed in a matched and sealed mode, the spinning piece is provided with a tapered material guiding hole, a spinning hole is formed at the tail end of the material guiding hole, the feeding piece is provided with a feed liquid inlet channel which is communicated with the material guiding hole and a core liquid inlet channel which is communicated with a core liquid pipe, the core liquid pipe and the spinning hole are arranged in a coaxial mode, the circumferential wall surface of the material guiding hole is an arc which protrudes towards the center of the material guiding hole, and the cross section of the material guiding hole is in a hyperbola shape. The novel spinning nozzle of the hollow fiber film is of the optimal structure due to the fact that the hyperbola-shaped material guiding hole is adopted. Compared with a cone-shaped material guiding hole and a double-cone-shaped material guiding hole, due to the fact that the flowing direction of the cone-shaped material guiding hole cannot be changed and the flowing direction of the double-cone-shaped material guiding hole can only be changed once, the hyperbola-shaped material guiding hole has the advantages that the flowing direction can be changed all the time, the degree of convergence is even, and hollow fiber films with high quality can be manufactured.
Description
Technical field
The utility model relates to the sewage disposal device field, and specifically, the utility model relates to a kind of novel spinning head of producing hollow-fibre membrane.
Background technology
Hollow-fibre membrane is the core component of water treatment facilities, and spinning head is the precise part of necessity of processing hollow-fibre membrane.
In recent years along with the develop rapidly of water treatment field, R and D as the hollow-fibre membrane of water treatment facilities core component enter a new phase, the kind of hollow-fibre membrane, the specification difference is bigger, spinning head as its necessary processing component obtains a lot of personages, expert's continuous discussion and research, its function is exactly that the spinning melt of spinning pump accurate measurement is squeezed into spinning head from the spinning head top, simultaneously core liquid is squeezed into spinning head from the spinning head side, special construction by spinning head inside, from the thread thing of spinning head lower end ejection doughnut-be commonly called as film silk, i.e. hollow-fibre membrane.
The material guide hole of the hollow-fibre membrane spinning head of prior art generally adopts taper shape or biconial, because material guide hole comprises that to the geometrical factor of film silk influence helical pitch, undergauge compare etc., prior art constructions causes the quality of film silk to have much room for improvement.
Deficiency at prior art exists proposes the utility model.
The utility model content
The purpose of this utility model is to provide a kind of material guide hole flow through direction time changing and the uniform novel hollow-fibre membrane spinning head of degree of convergence.
For realizing above-mentioned utility model purpose, the technical scheme that the utility model provides is: a kind of novel hollow-fibre membrane spinning head, the inlet that comprising is sealed and matched installs and spray silk part, spray silk part is provided with the cone-shaped material guide hole, the end of material guide hole is spinneret orifice, inlet is provided with the liquor inlet passage and is communicated with material guide hole, inlet also is provided with core liquid intake channel, core liquid intake channel is communicated with core liquid pipe, core liquid pipe and the coaxial setting of spinneret orifice, wall is that the material guide hole cross sectional shape is hyperbola to the cambered outwards arc of material guide hole central party around the material guide hole.
The helical pitch of described material guide hole is 0.7～1.2 times of material guide hole maximum gauge, and wherein helical pitch is the vertical height of material guide hole curved wall.
The undergauge ratio of described material guide hole is 10～15, and wherein undergauge is than the ratio for material guide hole maximum gauge and minimum diameter.
The draw ratio of described spinneret orifice is 3～5, and wherein draw ratio is the ratio of the diameter of the length of spinneret orifice and spinneret orifice.
Described spinneret orifice and a spray silk part bottom surface perpendicularity≤0.02 millimeter, spinneret orifice and material guide hole axiality≤0.02 millimeter, spinneret orifice and core liquid pipe axiality≤0.01 millimeter.
Beneficial effect: the spinning head of the utility model design adopts the hyperbola material guide hole, it is optimal structure, compare with conical material guide hole, biconial material guide hole, the conical material guide hole direction of flowing through is constant, the biconial material guide hole is flowed through the direction change once, the utility model hyperbola material guide hole direction time changing of flowing through, degree of convergence is even, can produce the hollow-fibre membrane of high-quality more.
Description of drawings
When considered in conjunction with the accompanying drawings, by the reference following detailed, can more completely understand the utility model better and learn wherein many attendant advantages easily, but accompanying drawing described herein is used to provide further understanding of the present utility model, constitute a part of the present utility model, illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute to improper restriction of the present utility model, wherein:
Fig. 1 is general structure schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
As shown in Figure 1, novel hollow-fibre membrane spinning head of the present utility model, the inlet 1 that comprising is sealed and matched installs and spray silk part 2, spray silk part 2 is provided with cone-shaped material guide hole 3, the end of material guide hole 3 is spinneret orifice 4, inlet 1 is provided with liquor inlet passage 5 and is communicated with material guide hole 3, inlet 1 also is provided with core liquid intake channel 6, core liquid intake channel 6 is communicated with core liquid pipe 7, core liquid pipe 7 and spinneret orifice 4 coaxial settings, wall is to the cambered outwards arc of material guide hole central party around the material guide hole 3, and material guide hole 3 cross sectional shapes are hyperbola.
Following mask body is introduced material guide hole structure major parameter
The major parameter that influences the film yarn quality has: the buffer length (L of material guide hole 3
1), the undergauge of material guide hole 3 is than the diameter (d) of (D/d), spinneret orifice 4, the draw ratio (L of spinneret orifice 4
2/ d), the axiality of material guide hole 3 and core liquid pipe 7 and melt-flow be through Surface Machining precision etc.,
The form of material guide hole generally has taper shape, biconial, it is optimal structure that material guide hole 3 of the present utility model adopts hyperbola, compare with conical material guide hole, biconial material guide hole, the conical material guide hole direction of flowing through is constant, and the biconial material guide hole direction of flowing through changes once, the utility model hyperbola material guide hole direction time changing of flowing through, degree of convergence is even, and helical pitch is more long, more is conducive to the control of film yarn quality, consider difficulty of processing, helical pitch L
1Generally select 0.7 ~ 1.2D, diameter shrinkage ratio (D/d) generally selects 10 ~ 15.
The draw ratio of spinneret orifice directly has influence on the quality of film silk, according to the analysis of flow characteristics of melt in spinneret orifice as can be known, increase draw ratio and can alleviate the relaxation velocity of melt in spinneret orifice, reduce the pressure in exit and expanded, spinning is relatively stable, select the principle of draw ratio to be: the time of staying must be greater than the slack time of melt in spinneret orifice for melt, and be 10 the slack time of high-speed spinning PVDF
-3Second; Must consider processing possibility and the cleaning condition of spinneret orifice, the same more long processing of diameter spinneret orifice is more difficult, and the axiality of spinneret orifice and core liquid pipe more be cannot say for sure to demonstrate,prove; Comprehensive above-mentioned 2 points, the draw ratio of the utility model spinneret orifice 4 is selected between 3 ~ 5.
The accuracy of manufacture between spinneret orifice and the core liquid pipe is bigger to the forming process influence of film silk, therefore, spinneret orifice of the present utility model 4 and spinneret orifice bottom surface 8 perpendicularity≤0.02 millimeter, spinneret orifice 4 and material guide hole 3 axialities≤0.02 millimeter, spinneret orifice 4 and core liquid pipe 7 axialities≤0.01 millimeter.
As mentioned above, embodiment of the present utility model is explained, but as long as not breaking away from utility model point of the present utility model and effect in fact can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation also all is included within the protection domain of the present utility model.
Claims (6)
1. novel hollow-fibre membrane spinning head, the inlet that comprising is sealed and matched installs and spray silk part, spray silk part is provided with the cone-shaped material guide hole, and the end of material guide hole is spinneret orifice, and inlet is provided with the liquor inlet passage and is communicated with material guide hole, inlet also is provided with core liquid intake channel, core liquid intake channel is communicated with core liquid pipe, and core liquid pipe and the coaxial setting of spinneret orifice is characterized in that, wall is arc around the described material guide hole, and the material guide hole cross sectional shape is hyperbola.
2. novel hollow-fibre membrane spinning head according to claim 1 is characterized in that, wall is to the cambered outwards arc of material guide hole central party around the described material guide hole.
3. novel hollow-fibre membrane spinning head according to claim 1 is characterized in that, the helical pitch of described material guide hole is 0.7～1.2 times of material guide hole maximum gauge, and wherein helical pitch is the vertical height of material guide hole curved wall.
4. novel hollow-fibre membrane spinning head according to claim 1 is characterized in that, the undergauge ratio of described material guide hole is 10～15, and wherein undergauge is than the ratio for material guide hole maximum gauge and minimum diameter.
5. novel hollow-fibre membrane spinning head according to claim 1 is characterized in that, the draw ratio of described spinneret orifice is 3～5, and wherein draw ratio is the ratio of the diameter of the length of spinneret orifice and spinneret orifice.
6. novel hollow-fibre membrane spinning head according to claim 1 is characterized in that, described spinneret orifice and a spray silk part bottom surface perpendicularity≤0.02 millimeter, and spinneret orifice and material guide hole axiality≤0.02 millimeter, spinneret orifice and core liquid pipe axiality≤0.01 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320059736 CN203112978U (en) | 2013-02-01 | 2013-02-01 | Novel spinning nozzle of hollow fiber film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320059736 CN203112978U (en) | 2013-02-01 | 2013-02-01 | Novel spinning nozzle of hollow fiber film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203112978U true CN203112978U (en) | 2013-08-07 |
Family
ID=48893345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320059736 Expired - Lifetime CN203112978U (en) | 2013-02-01 | 2013-02-01 | Novel spinning nozzle of hollow fiber film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203112978U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541025A (en) * | 2013-09-26 | 2014-01-29 | 吴江伊莱纺织科技有限公司 | Spinneret plate |
| CN106757437A (en) * | 2017-01-06 | 2017-05-31 | 东华大学 | A kind of porous spinneret of melt-spun hollow-fibre membrane |
| CN112593299A (en) * | 2020-12-08 | 2021-04-02 | 江苏德力化纤有限公司 | Method for manufacturing moisture-conducting, temperature-conducting and wicking polyester fibers |
-
2013
- 2013-02-01 CN CN 201320059736 patent/CN203112978U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541025A (en) * | 2013-09-26 | 2014-01-29 | 吴江伊莱纺织科技有限公司 | Spinneret plate |
| CN106757437A (en) * | 2017-01-06 | 2017-05-31 | 东华大学 | A kind of porous spinneret of melt-spun hollow-fibre membrane |
| CN112593299A (en) * | 2020-12-08 | 2021-04-02 | 江苏德力化纤有限公司 | Method for manufacturing moisture-conducting, temperature-conducting and wicking polyester fibers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |