CN106622090B - A kind of PA6 prepolymerization pipe that can effectively prevent tube top and generate gelinite - Google Patents
A kind of PA6 prepolymerization pipe that can effectively prevent tube top and generate gelinite Download PDFInfo
- Publication number
- CN106622090B CN106622090B CN201710106583.XA CN201710106583A CN106622090B CN 106622090 B CN106622090 B CN 106622090B CN 201710106583 A CN201710106583 A CN 201710106583A CN 106622090 B CN106622090 B CN 106622090B
- Authority
- CN
- China
- Prior art keywords
- tube body
- tube
- effectively prevent
- gelinite
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/006—Baffles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00018—Construction aspects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00076—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements inside the reactor
- B01J2219/00081—Tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00105—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling
- B01J2219/00108—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling involving reactant vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00761—Details of the reactor
- B01J2219/00763—Baffles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention discloses a kind of PA6 prepolymerization pipe that can effectively prevent tube top and generate gelinite, including tube body, the tube body middle and upper part is provided with tubular heat exchanger, the tube body top is provided with material inlet, exhaust pipe is provided at the top of tube body, the exhaust bottom of the tube is extend into the tube body, and the exhaust pipe top is provided with packed tower and condenser.Bottom in the present invention due to exhaust pipe is deep into tube body, and caprolactam instills tube body from the bottom of exhaust pipe, will not be stopped on the inner wall of tube body, because to improve product quality, avoiding halt production cleaning without generating gelinite, the service life for extending polyplant, reduces costs.
Description
Technical field
The present invention relates to caprolactam processing technique fields, can effectively prevent tube top more particularly to one kind and generate gelinite
PA6 prepolymerization pipe.
Background technique
PA6 also known as nylon 6 are translucent or opaque milky white colored particles, have thermoplasticity, lightweight, good toughness, chemically-resistant
The characteristics such as product and durability are good are generally used for the products such as auto parts and components, mechanical part, electric equipment products, engineering accessory.Its
Preparation method is that polyamide slice is generated by polymerizing caprolactam, i.e. nylon-6 slice or polyamide fibre -6 is sliced.In prepolymerization
Some water and material vaporization are understood in journey, is assembled in prepolymerization tube top portion, gelinite is generated, and the generation of gelinite is anti-to polymerizeing
It should be fatal harm, if fallen into prepolymerization pipe, the quality of product can be seriously affected, need to periodically stop production to remove gelinite
Prepolymerization pipe is cleared up, production is not only influenced, also will increase cost.Therefore, needing one kind can effectively prevent tube top generation
The PA6 prepolymerization pipe of gelinite.
Summary of the invention
In order to solve the above technical problems, the present invention, which provides one kind, can effectively prevent tube top generation gelinite, improve product matter
Amount, extends the service life of polyplant, reduces the PA6 prepolymerization pipe of cost.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of PA6 prepolymerization pipe that can effectively prevent tube top and generate gelinite, including tube body, the tube body
Middle and upper part is provided with tubular heat exchanger, and the tube body top is provided with material inlet, is provided with exhaust pipe at the top of tube body, described
Exhaust bottom of the tube is extend into the tube body, and the exhaust pipe top is provided with packed tower and condenser.
Optionally, the material inlet bottom is provided with the first umbrella shape distributor, and the exhaust bottom of the tube is provided with second
Umbrella shape distributor.
Optionally, the tube body is heated using collet.
Optionally, the tube body middle and lower part is arranged in parallel with multiple even flow plates, and the even flow plate is porous barrier.
Optionally, the condenser includes water-cooled heat exchanger, gas phase import and gaseous phase outlet, the gas phase import setting
In the exchanger base, the gaseous phase outlet is arranged at the top of the heat exchanger, and the condenser passes through the gas phase import
It is connect with the tube body.
Optionally, the water-cooled heat exchanger is multiple and is arranged in series.
The present invention achieves following technical effect compared with the existing technology:
The present invention can effectively prevent tube top generate gelinite PA6 prepolymerization pipe, by material inlet by caprolactam,
Prepolymerization pipe is added in water, molecular weight regulator and additive etc., is heated by tubular heat exchanger to material, carries out material
Prepolymerization.The material evaporated in heating process is discharged to packed tower and condenser with exhaust pipe, and material steam is cold within the condenser
But, it is back to packed tower, water and caprolactam separation, caprolactam are back to tube body along exhaust pipe in packed tower, due to row
The bottom of tracheae is deep into tube body, and caprolactam instills tube body from the bottom of exhaust pipe, will not be stopped on the inner wall of tube body,
Because to improve product quality, avoiding halt production cleaning, extend polyplant uses week without generating gelinite
Phase reduces costs.First umbrella shape distributor and the second umbrella shape distributor can make uniformly to be distributed in material dropping process
In tube body, the aggregation and condensation of material are avoided.It is provided with multiple even flow plates in tube body, allows fluid to stream more evenly
It is dynamic.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the upper half structural schematic diagram that the present invention can effectively prevent that tube top generates the PA6 prepolymerization pipe of gelinite；
Fig. 2 is the structural schematic diagram that the present invention can effectively prevent that tube top generates the PA6 prepolymerization pipe of gelinite；
Fig. 3 is the condenser structure schematic diagram that the present invention can effectively prevent that tube top generates the PA6 prepolymerization pipe of gelinite.
Description of symbols: 1, material inlet；2, the first umbrella shape distributor；3, tubular heat exchanger；4, condenser；5, it fills out
Expect tower；6, exhaust pipe.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It is existing to solve the object of the present invention is to provide a kind of PA6 prepolymerization pipe that can effectively prevent tube top and generate gelinite
Have in technology in PA6 production, leads to the problem of gelinite, so as to improve product quality, reduction maintenance cost.
Based on this, the PA6 prepolymerization pipe provided by the invention that can effectively prevent tube top and generate gelinite comprising tube body,
The tube body middle and upper part is provided with tubular heat exchanger, and the tube body top is provided with material inlet, the row of being provided at the top of tube body
Tracheae, the exhaust bottom of the tube are extend into the tube body, and the exhaust pipe top is provided with packed tower and condenser.
The present invention is condensed the PA6 in tube body plus in thermogenetic steam using condenser, and steam is arranged above condenser
Out, then by packed tower exhaust pipe is flowed into, is re-added in tube body by exhaust pipe, exhaust bottom of the tube extend into the tube body
It is interior, to assemble when effectively preventing PA6 reflux in prepolymerization tube top portion, avoid the generation of gelinite.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Embodiment one:
As depicted in figs. 1 and 2, the present embodiment provides it is a kind of can effectively prevent tube top generate gelinite PA6 prepolymerization pipe,
Including tube body, the tube body middle and upper part is provided with tubular heat exchanger, and the tube body top is provided with material inlet 1, tube body top
Portion is provided with exhaust pipe 6, and 6 bottom of exhaust pipe extend into the tube body 10 centimetres, and 6 top of exhaust pipe, which is provided with, to be filled out
Expect tower 5 and condenser 4；1 bottom of material inlet is provided with the first umbrella shape distributor 2, and 6 bottom of exhaust pipe is provided with
Two umbrella shape distributors；The tube body is heated using collet；The tube body middle and lower part is arranged in parallel with 4 even flow plates, the uniform flow
Plate is porous barrier；The condenser 4 includes 2 water-cooled heat exchangers being arranged in series, a gas phase import and a gas phase
Outlet, in the exchanger base, the gaseous phase outlet is arranged at the top of the heat exchanger for the gas phase import setting.
In use, pre-polymerization is added by material inlet 1 in the materials such as caprolactam, water, molecular weight regulator and additive
Pipe is closed, material flows through the first umbrella shape distributor 2, be evenly dispersed in tube body, and material flows downward process in tube body
It is middle to be heated by the tubular heat exchanger, complete prepolymerization.Add thermogenetic material steam upwards through the exhaust pipe 6 and described
Packed tower 5 flows into condenser 4, and the substances such as caprolactam, molecular weight regulator and additive in material steam are liquefied, again
The packed tower 5 is flowed into, the moisture in material steam is still in vapour form from the gaseous phase outlet above the condenser 4
Discharge.The material flowed into the packed tower 5 is back flowed back into tube body by the exhaust pipe 6, due to the bottom of the exhaust pipe 6
Portion is extend into the tube body, and material flows directly into tube body from 6 bottom of exhaust pipe, will not be stopped on the inner wall of tube body,
Because without generating gelinite.2 water-cooled heat exchangers being arranged in series in the condenser 4, can be according to quantity of steam and/or production
The difference of amount, selection only use one or both of them while using.
It can be seen that the present embodiment is extend into the tube body using the bottom of exhaust pipe, make the material of reflux will not be
It is stopped on the inner wall of tube body, because to improve product quality, avoiding halt production cleaning, extending without generating gelinite
The service life of polyplant, reduces costs.
It should be noted that the quantity of the water-cooled heat exchanger in condenser in the present invention is not limited to this embodiment,
The purpose of recovered material steam to realize the present invention, using one or more concatenated water-cooled heat exchangers, equally, uniform flow
The concrete structure design of plate and the quantity of even flow plate and position are arranged and are not limited to this embodiment, as long as being able to achieve to material
Uniform flow enters tubular heat exchanger；In addition, exhaust bottom of the tube extend into the intracorporal distance of the pipe and is not with the present embodiment
Limit, as long as being able to achieve material reflux course will not stop on the inner wall of tube body.
Apply that a specific example illustrates the principle and implementation of the invention in this specification, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (4)
1. a kind of PA6 prepolymerization pipe that can effectively prevent tube top and generate gelinite, which is characterized in that including tube body, the tube body
Middle and upper part is provided with tubular heat exchanger, and the tube body top is provided with material inlet, is provided with exhaust pipe at the top of tube body, described
Exhaust bottom of the tube is extend into the tube body, and the exhaust pipe top is provided with packed tower and condenser；The tube body middle and lower part
Multiple even flow plates are arranged in parallel with, the even flow plate is porous barrier；The condenser includes water-cooled heat exchanger, gas phase import
And gaseous phase outlet, in the water-cooled heat exchanger bottom, the gaseous phase outlet is arranged in the water cooling for the gas phase import setting
At the top of formula heat exchanger, the condenser is connect by the gas phase import with the tube body.
2. the PA6 prepolymerization pipe according to claim 1 that can effectively prevent tube top and generate gelinite, which is characterized in that institute
It states material inlet bottom and is provided with the first umbrella shape distributor, the exhaust bottom of the tube is provided with the second umbrella shape distributor.
3. the PA6 prepolymerization pipe according to claim 1 that can effectively prevent tube top and generate gelinite, which is characterized in that institute
Tube body is stated to heat using collet.
4. the PA6 prepolymerization pipe according to claim 1 that can effectively prevent tube top and generate gelinite, which is characterized in that institute
Water-cooled heat exchanger is stated to be multiple and be arranged in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106583.XA CN106622090B (en) | 2017-02-27 | 2017-02-27 | A kind of PA6 prepolymerization pipe that can effectively prevent tube top and generate gelinite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106583.XA CN106622090B (en) | 2017-02-27 | 2017-02-27 | A kind of PA6 prepolymerization pipe that can effectively prevent tube top and generate gelinite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106622090A CN106622090A (en) | 2017-05-10 |
| CN106622090B true CN106622090B (en) | 2019-08-27 |
Family
ID=58846449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710106583.XA Active CN106622090B (en) | 2017-02-27 | 2017-02-27 | A kind of PA6 prepolymerization pipe that can effectively prevent tube top and generate gelinite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106622090B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11322810A (en) * | 1998-05-08 | 1999-11-26 | Mitsubishi Chemical Corp | Reflux condenser |
| CN2562864Y (en) * | 2002-07-05 | 2003-07-30 | 中国石化集团巴陵石油化工有限责任公司 | Polymerization still |
| CN201668970U (en) * | 2010-05-27 | 2010-12-15 | 天津市天大北洋化工实验设备有限公司 | Internal reflux device and device thereof |
| CN201964791U (en) * | 2011-01-20 | 2011-09-07 | 颜建平 | Heat exchanger |
| CN202315378U (en) * | 2011-08-08 | 2012-07-11 | 华东理工大学 | Novel steam distilling device |
| CN202962440U (en) * | 2012-11-21 | 2013-06-05 | 曾舟华 | Continuous feeding and automatic pressure control device for synthesizing 2-ethylimidazole |
| CN205462258U (en) * | 2016-01-29 | 2016-08-17 | 扬州惠通化工技术有限公司 | Vertical polymerization ware |
| CN205759817U (en) * | 2016-05-27 | 2016-12-07 | 安徽新远科技有限公司 | A kind of pet reaction energy-saving recovery device |
| CN206526814U (en) * | 2017-02-27 | 2017-09-29 | 江苏海阳锦纶新材料有限公司 | A kind of PA6 prepolymerization pipes that can effectively prevent tube top from producing gelinite |
-
2017
- 2017-02-27 CN CN201710106583.XA patent/CN106622090B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11322810A (en) * | 1998-05-08 | 1999-11-26 | Mitsubishi Chemical Corp | Reflux condenser |
| CN2562864Y (en) * | 2002-07-05 | 2003-07-30 | 中国石化集团巴陵石油化工有限责任公司 | Polymerization still |
| CN201668970U (en) * | 2010-05-27 | 2010-12-15 | 天津市天大北洋化工实验设备有限公司 | Internal reflux device and device thereof |
| CN201964791U (en) * | 2011-01-20 | 2011-09-07 | 颜建平 | Heat exchanger |
| CN202315378U (en) * | 2011-08-08 | 2012-07-11 | 华东理工大学 | Novel steam distilling device |
| CN202962440U (en) * | 2012-11-21 | 2013-06-05 | 曾舟华 | Continuous feeding and automatic pressure control device for synthesizing 2-ethylimidazole |
| CN205462258U (en) * | 2016-01-29 | 2016-08-17 | 扬州惠通化工技术有限公司 | Vertical polymerization ware |
| CN205759817U (en) * | 2016-05-27 | 2016-12-07 | 安徽新远科技有限公司 | A kind of pet reaction energy-saving recovery device |
| CN206526814U (en) * | 2017-02-27 | 2017-09-29 | 江苏海阳锦纶新材料有限公司 | A kind of PA6 prepolymerization pipes that can effectively prevent tube top from producing gelinite |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106622090A (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10118835B2 (en) | Methods and apparatuses for water purification | |
| US20150068886A1 (en) | Water distilling apparatus using saturated air currents and methods for maximising the performance thereof | |
| JP6822984B2 (en) | A distillation apparatus having a columnar portion having three or more chambers through which a liquid continuously flows and a method for distillation or extraction distillation by using the distillation apparatus. | |
| CN106622090B (en) | A kind of PA6 prepolymerization pipe that can effectively prevent tube top and generate gelinite | |
| US9849401B2 (en) | Distillation station | |
| US556040A (en) | Apparatus for cooling or evaporating liquids | |
| EP3030342A1 (en) | Device for membrane distillation | |
| CN206526814U (en) | A kind of PA6 prepolymerization pipes that can effectively prevent tube top from producing gelinite | |
| CN105879416A (en) | Method for manufacturing thinning multi-folded-face evaporator with surface updating function | |
| WO2010116100A3 (en) | Distillators with heat convection and recuperation | |
| CN107261623A (en) | Chemical products are with filtering purification device | |
| CN204073478U (en) | A kind of multiple-grade molecular distillation equipment | |
| CN203899191U (en) | Rectifying tower | |
| US718805A (en) | Steam-separator. | |
| WO2018146712A1 (en) | Apparatus and method to produce drinking water by evaporation | |
| US735348A (en) | Apparatus for evaporating liquids. | |
| CN109737368A (en) | A kind of vapor heat exchanger that current-stabilizing structure is set | |
| CN205517729U (en) | Silicon resin finish system | |
| CN204815723U (en) | Quick energy -saving concentrated system | |
| CN203724787U (en) | Evaporation unit and evaporation system | |
| CN216629678U (en) | Double-effect countercurrent falling film vacuum concentration system | |
| US955127A (en) | Distilling-column. | |
| CN110094710A (en) | A kind of vapor heat exchanger of current-stabilizing structure spacing variation | |
| US701890A (en) | Carbureter. | |
| US436994A (en) | Stand-pipe for ammonia-gas generators |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |