CN105133055B - Square chuck corridor for spinning of urethane elastic fiber - Google Patents
Square chuck corridor for spinning of urethane elastic fiber Download PDFInfo
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- CN105133055B CN105133055B CN201510587900.5A CN201510587900A CN105133055B CN 105133055 B CN105133055 B CN 105133055B CN 201510587900 A CN201510587900 A CN 201510587900A CN 105133055 B CN105133055 B CN 105133055B
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- path
- heating agent
- heat tracing
- chuck
- biphenyl
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Abstract
The present invention relates to a kind of square chuck corridor for spinning of urethane elastic fiber, including the upper of insertion, in, the path of lower three sections of squares, upper path and middle path periphery are respectively arranged with heat tracing chuck and middle heat tracing chuck, the corresponding site of upper heat tracing chuck is provided with path heating agent steam inlet, upper path exhaust outlet, upper path heating agent condensate outlet, the corresponding site of middle heat tracing chuck is provided with middle path heating agent steam inlet, middle path exhaust outlet, middle path heating agent condensate outlet, upper path heating agent steam inlet and middle path heating agent steam inlet are separately docked with biphenyl Biphenyl Ether heating agent steam raising plant, upper path heating agent condensate outlet and the middle path heating agent condensate outlet are connected to biphenyl Biphenyl Ether heating agent steam raising plant and realize that heating agent is circulated.The gas phase heating agent jacket type heat tracing in square path is realized, square path body improves the heat tracing effect in square path without pressure-bearing on the premise of heat tracing temperature is ensured.
Description
Technical field
The present invention relates to polyurethane fiber dry spinning path, and in particular to a kind of square corridor for spinning of urethane elastic fiber of jacket type heating.
Background technology
During the dry spinning of spandex, according to different spandex thread kinds, about 230 DEG C~265 DEG C of spinning temperature is
The thermal loss of the path wall in spinning process is avoided, in addition to the insulation for carrying out spinning shaft, is generally set in path outer wall
There is chuck（Round path）Or heat tracing pipe（Square path）, thermal medium is passed through in chuck or adjoining pipe（Steam or conduction oil）To mend
Repay the heat that path is lost in process of production.
Before 2000, the dry spinning of spandex uses round chuck path substantially.Because round path chuck can be with
Design is processed into bearing device, and in spinning production process, generally 20bar is passed through in round path chuck（214℃ ）More than
Saturated vapor carrys out heat tracing.Round chuck path is limited in that yielding poorly for single path, and by vapo(u)rous temperature and
The influence of pressure, spinning temperature is difficult to improve.
After 2000, with the progress of spandex production technology, single path production capacity, spandex product variety and requirement, spinning
The raising of silk temperature, round path gradually replaces by square path, due to square chuck can not pressure-bearing and equipment processing difficulties,
So square path outer wall by the way of heat tracing pipe come heat tracing, provide heat with high temperature heat conductive oil circulation in heat tracing pipe.It is round
Heat tracing pipe is close to path outer wall, is that line style is contacted with path outer wall, heat transfer area is small, and heat-transfer effect is poor, and can cause path
Wall heating is uneven.For increase heat-transfer effect, in construction process, heat tracing pipe periphery applies heat-conducting daub, makes heat tracing pipe
It is changed into face with the linear contact lay of path outer wall to contact, but space is still left between heat tracing pipe and pipe, causes wall temperature outside whole path
Degree is uneven, and the homogeneity heated without chuck is good.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of square jacket type spandex fiber for above-mentioned prior art
Path, using biphenyl-biphenyl ether as gas phase heat tracing medium, enters path chuck from the allocated pipe in path chuck bottom, is ensureing
Without square path pressure-bearing on the premise of heat tracing temperature, the jacket type heat tracing in square path is realized, square path is improved
Heat tracing effect.
The present invention the used technical scheme that solves the above problems is：A kind of square chuck corridor for spinning of urethane elastic fiber, including pass through
The path of logical upper, middle and lower segment square, the upper path and middle path periphery are respectively arranged with heat tracing chuck and middle heat tracing
Chuck, the corresponding site of the upper heat tracing chuck is provided with path heating agent steam inlet, upper path exhaust outlet, upper path heating agent
Condensate outlet, the corresponding site of the middle heat tracing chuck is provided with middle path heating agent steam inlet, middle path exhaust outlet, middle river in Zhejiang Province
Road heating agent condensate outlet, the upper path heating agent steam inlet and middle path heating agent steam inlet separately with biphenyl-
Biphenyl Ether heating agent steam raising plant is docked, the upper path heating agent condensate outlet and the middle path heating agent condensate outlet
It is connected to biphenyl-biphenyl ether heating agent steam raising plant and realizes that heating agent is circulated.
To prevent vehicle repair major produces gas when chuck interior circulation from blocking up phenomenon, set on jackets inner wall and path outer wall
In respect of air guide, on the one hand air guide can increase heat exchange area, on the other hand can allow the liquid condensed out quickly
Ground flows to outlet at bottom.The inwall of upper heat tracing chuck and middle heat tracing chuck, and or, the outer wall in upper path and middle path on be provided with
Diversion component.
Further, diversion component is strip arc plate, described along the axially extending of path outer wall or heat tracing chuck
The inner concave arc surface of strip arc plate is outwardly.In practice, heat conduction member can use seamless steel pipe from centre to cuing open rear equidistant weldering
It is connected on heat tracing jackets inner wall or path outer wall.
Specific technique is to state the connection that biphenyl-biphenyl ether heating agent steam raising plant is produced into the upper heat tracing chuck
Benzene-Biphenyl Ether steam, 265 DEG C ± 1 DEG C of vapor (steam) temperature, vapour pressure 1.22kg/cm2；The biphenyl-biphenyl ether heating agent steam generation
The biphenyl-biphenyl ether steam that device is produced into the middle heat tracing chuck, 260 DEG C ± 1 DEG C of vapor (steam) temperature, vapour pressure 1.11kg/
cm2。
Operating pressure in upper heat tracing chuck and middle heat tracing chuck is less than 1.5kg/cm2, with using saturated steam conduct
Heat tracing heating agent（214 DEG C, 20bar）Compare, square path outer wall allows square path to use the more uniform gas of heat tracing without pressure-bearing
Phase jacket type heat tracing mode is feasible.
Square path point upper, middle, and lower part, upper path and middle path band heating jacket, lower path is without chuck.Upper path
Different heat tracing temperature is used with middle path, upper path jacket hot tracing temperature is 265 DEG C ± 1 DEG C；Middle path jacket hot tracing temperature
For 260 DEG C ± 1 DEG C.Upper, middle heat tracing chuck is respectively arranged with heating agent steam inlet, exhaust outlet, heating agent condensate outlet, wherein hot
Matchmaker's condensate outlet is connected to heating agent steam generator by reflux line, realizes the circulation of biphenyl-biphenyl ether, saves heat tracing energy
Consumption.
Saturated vapor pressure and temperature are one-to-one relations, the phase transformation that heating agent steam only occurs in chuck, condensate liquid and
Vapour phase is same temperature state, therefore using after this jacket hot tracing, it can be ensured that the temperature in the chuck of path is more constant.
Compared with prior art, the advantage of the invention is that：There is provided a kind of square jacket type corridor for spinning of urethane elastic fiber, to join
Benzene-Biphenyl Ether enters path chuck as gas phase heat tracing medium by heating agent generating means, the side on the premise of heat tracing temperature is ensured
Type path realizes the gas phase heating agent jacket type heat tracing in square path, improves the heat tracing effect in square path, companion without pressure-bearing
Hot uniform, heat tracing is simple in construction, heat tracing energy consumption is cheap.
Brief description of the drawings
Fig. 1 is the front diagram of square chuck corridor for spinning of urethane elastic fiber in the embodiment of the present invention；
Fig. 2 is the side signal of square chuck corridor for spinning of urethane elastic fiber in the embodiment of the present invention；
Fig. 3 is the partial sectional view of square chuck corridor for spinning of urethane elastic fiber in the embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Figure 1 to Figure 3, the square chuck corridor for spinning of urethane elastic fiber in the present embodiment, includes the upper, middle and lower three of insertion
The path 1,2,3 of section square, upper path 3 and middle path 2 periphery is respectively arranged with heat tracing chuck 5 and middle heat tracing chuck 4, upper companion
The corresponding site of thermal jacket 5 is provided with path heating agent steam inlet 5.1, upper path exhaust outlet 5.2, upper path heating agent condensate liquid
Outlet 5.3, the corresponding site of middle heat tracing chuck 4 is provided with middle path heating agent steam inlet 4.1, middle path exhaust outlet 4.2, middle river in Zhejiang Province
Road heating agent condensate outlet 4.3, upper path heating agent steam inlet 5.1 and middle path heating agent steam inlet 4.1 separately with
Biphenyl-biphenyl ether heating agent steam raising plant is docked（It is not drawn into figure）, upper path heating agent condensate outlet 5.3 and middle path are hot
Matchmaker's condensate outlet 4.3 is connected to biphenyl-biphenyl ether heating agent steam raising plant and realizes that heating agent is circulated.Upper, middle heat tracing chuck 4,5
Heating agent steam-distributing pipe is inside further provided with, makes biphenyl-biphenyl ether tracing steam in corresponding heat tracing chuck uniformly
Rise.
To prevent vehicle repair major produces gas when chuck interior circulation from blocking up phenomenon, it is ensured that upper heat tracing chuck 5 and middle heat tracing
The inwall of chuck 4, and upper path 3 are strip arc with being provided with air guide 6, diversion component 6 on the outer wall in middle path 2
Part, it is axially extending along path outer wall or heat tracing jackets inner wall, and strip arc plate inner concave arc surface outwardly, the present embodiment
In, heat conduction member 6 is equidistantly welded on heat tracing jackets inner wall and path outer wall afterwards from centre to cuing open using seamless steel pipe.
Square path point upper, middle, and lower part, upper path and middle path band heating jacket, lower path is without chuck.Upper path
Different heat tracing temperature is used with middle path, upper path jacket hot tracing temperature is 265 DEG C ± 1 DEG C, vapour pressure 1.22kg/cm2；In
Path jacket hot tracing temperature is 260 DEG C ± 1 DEG C, vapour pressure 1.11kg/cm2.Upper, middle heat tracing chuck 5,4 is respectively arranged with heating agent
Steam inlet 4.1,5.1, exhaust outlet 4.2,5.2, heating agent condensate outlet 4.3,5.3, wherein heating agent condensate outlet are by returning
Flow tube road is connected to heating agent steam generator, realizes the circulation of biphenyl-biphenyl ether, saves heat tracing energy consumption.
Heating agent saturated vapor pressure and temperature are that the phase transformation of heating agent steam, condensation only occur in one-to-one relation, chuck
Liquid and vapour phase are same temperature states, therefore using after this jacket hot tracing, it can be ensured that the temperature in the chuck of path is more constant.
The square chuck corridor for spinning of urethane elastic fiber of said structure is ensureing companion using biphenyl-biphenyl ether as gas phase heat tracing medium
Square path body realizes the gas phase heating agent jacket type heat tracing in square path, improved without pressure-bearing on the premise of hot temperature
The heat tracing effect in square path, heat tracing is uniform, heat tracing is simple in construction, heat tracing energy consumption is cheap.
Claims (3)
1. a kind of square chuck corridor for spinning of urethane elastic fiber, it is characterised in that：The path of upper, middle and lower segment square including insertion, institute
State path and middle path periphery and be respectively arranged with heat tracing chuck and middle heat tracing chuck, the corresponding site of the upper heat tracing chuck
It is provided with path heating agent steam inlet, upper path exhaust outlet, upper path heating agent condensate outlet, the phase of the middle heat tracing chuck
Position is answered to be provided with middle path heating agent steam inlet, middle path exhaust outlet, middle path heating agent condensate outlet, the upper path heat
Matchmaker's steam inlet and middle path heating agent steam inlet are separately docked with biphenyl-biphenyl ether heating agent steam raising plant, institute
State path heating agent condensate outlet and the middle path heating agent condensate outlet is connected to biphenyl-biphenyl ether heating agent steam generation
Device realizes that heating agent is circulated；
The inwall of the upper heat tracing chuck and middle heat tracing chuck, and or, the outer wall in upper path and middle path on be provided with diversion division
Part；
The diversion component is strip arc plate, along axially extending, the strip of path outer wall or heat tracing jackets inner wall
The inner concave arc surface of shape arc plate is outwardly.
2. square chuck corridor for spinning of urethane elastic fiber according to claim 1, it is characterised in that：The biphenyl-biphenyl ether heating agent
The biphenyl-biphenyl ether steam that steam raising plant is produced into the upper heat tracing chuck, 265 DEG C ± 1 DEG C of vapor (steam) temperature, vapour pressure
1.22kg/cm2；The biphenyl-biphenyl ether that the biphenyl-biphenyl ether heating agent steam raising plant is produced into the middle heat tracing chuck
Steam, 260 DEG C ± 1 DEG C of vapor (steam) temperature, vapour pressure 1.11kg/cm2。
3. square chuck corridor for spinning of urethane elastic fiber according to claim 2, it is characterised in that：The upper heat tracing chuck and middle companion
Operating pressure in thermal jacket is less than 1.5kg/cm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587900.5A CN105133055B (en) | 2015-09-16 | 2015-09-16 | Square chuck corridor for spinning of urethane elastic fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587900.5A CN105133055B (en) | 2015-09-16 | 2015-09-16 | Square chuck corridor for spinning of urethane elastic fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105133055A CN105133055A (en) | 2015-12-09 |
| CN105133055B true CN105133055B (en) | 2017-09-29 |
Family
ID=54718615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510587900.5A Active CN105133055B (en) | 2015-09-16 | 2015-09-16 | Square chuck corridor for spinning of urethane elastic fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105133055B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE358025A (en) * | 1928-03-22 | |||
| CN201154998Y (en) * | 2008-02-01 | 2008-11-26 | 江阴中绿化纤工艺技术有限公司 | 48-head square spinning spinning tunnel |
| CN201605357U (en) * | 2009-11-13 | 2010-10-13 | 杭州益邦氨纶有限公司 | Spinning channel for producing spandex |
| CN101851792B (en) * | 2010-06-25 | 2011-09-07 | 浙江四海氨纶纤维有限公司 | Nitrogen supplementing device of spandex spinning channel and process thereof |
| CN202626367U (en) * | 2012-01-16 | 2012-12-26 | 浙江华峰氨纶股份有限公司 | Special inner sleeve inclined flow device for spandex spinning channel |
| CN102912459B (en) * | 2012-11-02 | 2014-10-29 | 江阴中绿化纤工艺技术有限公司 | Circumferential blowing type circular spandex spinning channel |
| CN204455371U (en) * | 2014-12-27 | 2015-07-08 | 烟台泰和新材料股份有限公司 | A kind of path producing spandex fiber |
| CN204918862U (en) * | 2015-09-16 | 2015-12-30 | 江阴中绿化纤工艺技术有限公司 | Square presss from both sides cover spandex spinning corridor |
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2015
- 2015-09-16 CN CN201510587900.5A patent/CN105133055B/en active Active
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| Publication number | Publication date |
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| CN105133055A (en) | 2015-12-09 |
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