CN207159126U - A kind of nylon polymerization reaction test device - Google Patents
A kind of nylon polymerization reaction test device Download PDFInfo
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- CN207159126U CN207159126U CN201721095388.3U CN201721095388U CN207159126U CN 207159126 U CN207159126 U CN 207159126U CN 201721095388 U CN201721095388 U CN 201721095388U CN 207159126 U CN207159126 U CN 207159126U
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- polymerization reaction
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- reaction kettle
- kettle
- test device
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Abstract
The utility model provides a kind of nylon polymerization reaction test device, including polymerization reaction kettle and the Heat-conduction oil circulation system, water reception system and the PLC control system that are connected respectively with polymerization reaction kettle；Some deflectors are set between the chuck and inner barrel of polymerization reaction kettle, and deflector forms spirality channel between inner barrel and chuck, and guiding conduction oil is uniformly distributed in chuck, improves heating uneven phenomenon；Polymerization reaction kettle and Heat-conduction oil circulation system are respectively equipped with the temperature sensor being connected with PLC control system, and the temperature in polymerization reaction kettle is automatically and accurately controlled by PLC control system；The front and rear pipes of the loading hopper of polymerization reaction kettle set valve, when having pressure differential inside and outside polymerization reaction kettle, without waiting for row adds additive again after pressure relief difference, improve operating efficiency；Water reception system sets reset valve and stretches into out the bend pipe of water pot, makes pressure release more stable, reduces the foam entrainment of steam.
Description
Technical field
The utility model belongs to polymerizing reactor technical field, and in particular to a kind of nylon polymerization reaction test device.
Background technology
Nylon polymerization reaction test be to provide completely simulation industrialized production, be designed directly against industrialization engineering,
And for the batch technology of scientific research and testing.The nylon polymerization reaction test device of prior art is mostly one-pot device, use with
Caprolactam, adipic acid and ethylenediamine are main material production nylon polyesters product.The heating of the polymerization reaction kettle of experimental rig
Conduction oil heat supply built in generally use chuck entirety, stream of the conduction oil in kettle between heat conductive oil inlet and conduction oil outlet
Easily short circuit, cause heating uneven, influence product quality；It is first if having malleation or negative pressure in kettle when being fed by charging valve
First to release in kettle after pressure, additive could be added, reduce production efficiency；Go out in the pressure leak process of water pot, to esterification water
Receive it is unstable, cause foam entrainment it is more, substantial amounts of foam have impact on reaction effect, easily cause pipeline or storage tank blocking.With
Upper problem have impact on the stability of polymerisation and the quality of polymerizate.
Existing nylon polymerization reaction unit, such as patent：A kind of 6 two sections of polymer reactor (Application No. of nylon
CN201120266372.0), there is provided be advantageous to nylon 6 material and additive in two sections of polymerisation generation methods and mix more
Add uniformly, a kind of more stable 6 two sections of polymer reactors of nylon of temperature of charge, including preceding poly- reaction tower and rear poly- reaction tower,
Preceding poly- reaction tower includes reaction tower body, and agitating device is additionally provided with reaction tower body, and the agitating device includes motor, slowed down
Case and agitating paddle, motor output end link with reduction box, and reduction box output end links with agitating paddle, and the blade of stirring slurry is positioned at anti-
Answer tower body interior.Agitating device is added in poly- reaction tower so that reaction tower sheet before in two sections of polymerisation generation methods
Internal reactant flows up and down, and material and various additives mixing are more uniform, and the temperature control of material is more stable, while
The heat transfer efficiency of equipment can be improved in the presence of agitating paddle.But if the heating effect of reactor heater is uneven, even
Heating agent short circuit, then the effect of agitating device is there is no guarantee that reactor heats uniform enough, temperature controlled stabilization to material
Property and reliability still need to improve.In addition, the polymer reactor does not solve additive, to add efficiency low and when going out water pot pressure release
The problem of foam entrainment is more.
Utility model content
The purpose of this utility model be to provide heating-up temperature in a kind of kettle is uniform, temperature control precision is high, additive add
The nylon polymerization reaction test device of efficiency high, the arrangement increases the stability of polymerization reaction test.
The utility model provides following technical scheme：
A kind of nylon polymerization reaction test device, including polymerization reaction kettle and the conduction oil that is connected respectively with polymerization reaction kettle
The circulatory system, water reception system, vacuum system and PLC control system；Polymerization reaction kettle includes kettle and connected along at the top of kettle
The upper cover of kettle；Kettle includes inner barrel and the chuck being set in outside inner barrel, and some are set between chuck and inner barrel
Deflector, deflector form spirality channel between inner barrel and chuck；Polymerization reaction kettle bottom is provided with the first TEMP
Device, Heat-conduction oil circulation system is interior to be provided with second temperature sensor and three-way control valve, the first temperature sensor, second temperature sensing
Device and three-way control valve are respectively connecting to PLC control system；Be provided with feed pot on upper cover, feed pot include the first valve,
Second valve and the loading hopper of the first valve of connection and the second valve, the second valve are extended to inside upper cover.
Preferably, the regulating valve that water reception system includes water pot and is located at polymerization reaction kettle and goes out between water pot, water outlet
Tank includes tank body, bend pipe and the drain valve located at tank base, and the structure of bend pipe is 7 fonts bent downwards, one end of bend pipe
Regulating valve is connected, the other end of bend pipe is stretched into tank body.
Preferably, regulating valve is the reset valve of knob with a scale and extended type valve point.
Preferably, going out water pot also includes the board sight glass on tank body.
Preferably, feed pot also includes nitrogen inlet, and nitrogen inlet is located between the second valve and loading hopper, nitrogen
Air inlet includes the 3rd valve.
Preferably, feed pot is provided with pressure transmitter, pressure transmitter connection PLC control system, the connection of the 3rd valve
PLC control system.
Preferably, it is provided with space ring within one week around inner barrel in chuck.
The beneficial effects of the utility model are：
1st, by setting some deflectors in chuck, the spirality channel that deflector is formed guides conduction oil in chuck
It is uniformly distributed and flows, effectively avoid conduction oil from forming short circuit in chuck, improves heating uneven phenomenon；PLC control system is certainly
The flow of dynamic control conduction oil, so as to ensure the accuracy of temperature of reaction kettle control；The front and rear pipes of additive loading hopper are set
Valve, solve inside and outside polymerization reaction kettle when having pressure differential, need to wait for after pressure relief difference that row adds again using single valve doping
Add, and cause ineffective problem, improve operating efficiency.
2nd, water reception system sets reset valve and stretches into out the bend pipe of water pot, can slowly adjust steam pressure, changes gas
Direction and flow velocity, make pressure release more stable；Discharged water in advance during draining pressure release, in tank body and flood bend pipe mouth, make the steam that releases straight
Connect and contacted with water, so as to which steam fast cooling is cooled to liquid, reduces the volume of steam in tank body, reduce in pressure leak process
The foam entrainment of steam.
3rd, feed pot sets nitrogen inlet, with the air in nitrogen displacement feed pot, avoids a small amount of air during charging from entering
Enter polymerization reaction kettle, reduce material and contacted during the course of the reaction with the oxygen in air, make course of reaction more reliable and more stable.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of feed pot.
Wherein：1. polymerization reaction kettle；11. kettle；111. inner barrel；112. deflector；113. chuck；114. space ring；
12. upper cover；15. the first temperature sensor；16. feed pot；161. first valves；162. second valves；163. loading hopper；
164. nitrogen inlet；165. the 3rd valves；166. pressure transmitter；2. Heat-conduction oil circulation system；21. second temperature senses
Device；22. three-way control valve；3. water reception system；31. go out water pot；311. tank body；312. bend pipe；313. drain valve；It is 314. board-like
Visor；32. regulating valve；4. vacuum system；5.PLC control systems.
Embodiment
As shown in figure 1, a kind of nylon polymerization reaction test device, including polymerization reaction kettle 1, Heat-conduction oil circulation system 2, water
Reception system 3, vacuum system 4 and PLC control system 5, Heat-conduction oil circulation system 2 connect polymerization reaction kettle 1, are polymerization reaction kettle
1 heat supply；Water reception system 3 connects polymerization reaction kettle 1, receives and discharges the water of polymerisation abjection；The connection polymerization of vacuum system 4
Reactor 1, the gas extracted out in polymerization reaction kettle 1 is condensed, and vacuum is provided to polymerization reaction kettle 1, be advantageous to by-product
The removing of thing；Polymerization reaction kettle 1 includes kettle 11, the upper cover 12 for being arranged at the top of kettle 11, the sealing for sealing upper cover 12
The agitator of device and one end in kettle 11；Kettle 11 includes inner barrel 111 and the chuck being set in outside inner barrel 111
113, some deflectors 112 are set between chuck 113 and inner barrel 111, deflector 112 inner barrel 111 and chuck 113 it
Between form spirality channel, guiding conduction oil is uniformly distributed and flowed in chuck 113, effectively avoids conduction oil in chuck 113
It is interior to form short circuit, cause heating uneven；The bottom of polymerization reaction kettle 1 is provided with the first temperature sensor 15, in Heat-conduction oil circulation system 2
Provided with second temperature sensor 21 and three-way control valve 22, the first temperature sensor 15, second temperature sensor 21 and threeway are adjusted
Section valve 22 connects PLC control system 5 respectively, and PLC control system 5 receives the first temperature sensor 15 and second temperature sensor 21
Temperature value, and automatically control three-way control valve 22 by the temperature value being previously set, the flow of conduction oil adjusted, so as to ensure reality
Border temperature is consistent with design temperature.Feed pot 16 is provided with upper cover 12, feed pot 16 includes the first valve 161, the second valve
Door 162 and the loading hopper 163 of the first valve 161 of connection and the second valve 162, the second valve 162 are extended to inside upper cover 12,
When adding additive by feed pot 16, the first valve 161 is first opened, additive enters loading hopper 163, turns off the first valve
161, the second valve 162 is opened, additive is entered in polymerization reaction kettle 1, the second valve 162 is closed after addition, this knot
Structure is solved when having pressure differential inside and outside polymerization reaction kettle 1, needs to wait for after pressure relief difference that row adds again using single valve doping,
Cause ineffective problem；Loading hopper 163 is arranged between the first valve 161 and the second valve, it is ensured that feed pot 16
Single puts into the additive of certain volume, in addition, the loading hopper 163 of not co-content can be installed according to the demand of reaction test.
Preferably, water reception system 3 includes water pot 31 and regulating valve 32, and regulating valve 32 is located at polymerization reaction kettle 1 with going out
Between the pipeline of water pot 31, the gas flow for the pressure release of telo merization kettle 1 discharge；Going out water pot 31 includes tank body 311, inserts
Enter the bend pipe 312 of tank body 311 and the drain valve 313 located at the bottom of tank body 311, the structure of bend pipe 312 is 7 words bent downwards
Type, one end connection regulating valve 32 of bend pipe 312, the other end of bend pipe 312 are stretched into tank body 311, set bend pipe 312 to be beneficial to change
The direction of pressure release gas, slow down the flow velocity of pressure release gas, make pressure release more stable；In addition, during draining pressure release, in tank body 311 in advance
Discharge water and flood bend pipe mouth, the steam for making to release directly contacts with water, so as to which steam fast cooling is cooled to liquid, makes to steam in tank body
The volume of vapour is reduced, and reduces the foam entrainment of steam in pressure leak process.
Preferably, regulating valve 32 is the reset valve of knob with a scale and extended type valve point.Dialing knob is easy to observe valve
Aperture, extended type valve point can carry out trace regulation, regulating valve 32 can accurate adjustment and control gas flow, make pressure release more steady
It is fixed, safe and reliable.
Preferably, going out water pot 31 also includes the board sight glass 314 on tank body 311, and board sight glass 314 can be observed conveniently
Liquid level in tank body 311.
Preferably, feed pot 16 also includes nitrogen inlet 164, and nitrogen inlet 164 is located at the second valve 162 and charging
Between bucket 163, nitrogen inlet 164 includes the 3rd valve 165.After adding additive, the 3rd valve 165 is opened, and open simultaneously
The first valve 161 is opened, the second valve 162 is closed, to the inflated with nitrogen of nitrogen inlet 164, with the sky in nitrogen displacement feed pot 16
Gas, isolation air enter polymerization reaction kettle 1, reduce material and are contacted during the course of the reaction with the oxygen in air, make course of reaction
More accurately and reliably.After being replaced, the first valve 161 is first closed, nitrogen is full of loading hopper 163, turns off the 3rd valve
165。
Preferably, feed pot 16 is provided with pressure transmitter 166, and pressure transmitter 166 connects PLC control system 5, and the 3rd
Valve 165 connects PLC control system 5.When pressure transmitter 166 is used for the transmission filling nitrogen of feed pot 16 of PLC control system 5
Pressure value, the 3rd valve 165 receives the Regulate signal automatic valve opening of PLC control system 5 or closes valve, when filling it up with nitrogen from
It is dynamic to stop nitrogen charging；PLC control system 5 is to the pressure real-time display of feed pot 16 with automatically controlling.
Preferably, it is provided with space ring 114 within 111 1 weeks around inner barrel in chuck 113, chuck 113 is divided into by space ring 114
The upper and lower.Liquid phase part in lower floor's heating polymerization reaction kettle 1, lower floor heats gas phase portion in polymerization reaction kettle 1, realizes liquid
Mutually part and gas phase portion difference temperature control, make temperature control more accurate.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, although ginseng
The utility model is described in detail according to previous embodiment, for those skilled in the art, it still can be with
Technical scheme described in foregoing embodiments is modified, or equivalent substitution is carried out to which part technical characteristic.It is all
Within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made etc., this practicality should be included in
Within new protection domain.
Claims (7)
1. a kind of nylon polymerization reaction test device, including polymerization reaction kettle (1) and led respectively with what polymerization reaction kettle (1) was connected
Hot-oil circulation system (2), water reception system (3), vacuum system (4) and PLC control system (5)；Polymerization reaction kettle (1) includes kettle
Body (11) and the upper cover (12) along connection kettle (11) at the top of kettle (11)；Kettle (11) includes inner barrel (111) and suit
In the chuck (113) of inner barrel (111) outside, it is characterised in that：Some are set to lead between chuck (113) and inner barrel (111)
Flowing plate (112), deflector (112) form spirality channel between inner barrel (111) and chuck (113)；Polymerization reaction kettle (1)
Bottom is provided with the first temperature sensor (15), and second temperature sensor (21) is provided with Heat-conduction oil circulation system (2) and threeway is adjusted
Valve (22) is saved, the first temperature sensor (15), second temperature sensor (21) and three-way control valve (22) are respectively connecting to PLC controls
System (5) processed；Feed pot (16) is provided with upper cover (12), feed pot (16) includes the first valve (161), the second valve
(162) and the loading hopper (163) of the first valve of connection (161) and the second valve (162), the second valve (162) extend to envelope
Head (12) is internal.
2. nylon polymerization reaction test device according to claim 1, it is characterised in that water reception system (3) includes
Water pot (31) and located at polymerization reaction kettle (1) and the regulating valve (32) gone out between water pot (31), going out water pot (31) includes tank body
(311), bend pipe (312) and the drain valve (313) located at tank body (311) bottom, the structure of bend pipe (312) are bend downwards 7
Font, one end connection regulating valve (32) of bend pipe (312), the other end of bend pipe (312) are stretched into tank body (311).
3. nylon polymerization reaction test device according to claim 2, it is characterised in that regulating valve (32) is rotation with a scale
The reset valve of button and extended type valve point.
4. nylon polymerization reaction test device according to claim 2, it is characterised in that going out water pot (31) also includes being located at
Board sight glass (314) on tank body (311).
5. nylon polymerization reaction test device according to claim 1, it is characterised in that feed pot (16) also includes nitrogen
Air inlet (164), nitrogen inlet (164) are located between the second valve (162) and loading hopper (163), nitrogen inlet (164)
Including the 3rd valve (165).
6. nylon polymerization reaction test device according to claim 5, it is characterised in that feed pot (16) is provided with pressure
Transmitter (166), pressure transmitter (166) connection PLC control system (5), the 3rd valve (165) connection PLC control system
(5)。
7. nylon polymerization reaction test device according to any one of claim 1 to 6, it is characterised in that chuck (113)
It is interior to be provided with space ring (114) within (111) one weeks around inner barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721095388.3U CN207159126U (en) | 2017-08-29 | 2017-08-29 | A kind of nylon polymerization reaction test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721095388.3U CN207159126U (en) | 2017-08-29 | 2017-08-29 | A kind of nylon polymerization reaction test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207159126U true CN207159126U (en) | 2018-03-30 |
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ID=61718855
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721095388.3U Active CN207159126U (en) | 2017-08-29 | 2017-08-29 | A kind of nylon polymerization reaction test device |
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| CN (1) | CN207159126U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385093A (en) * | 2019-07-05 | 2019-10-29 | 江苏海阳化纤有限公司 | A kind of resistance of eutectic is high to spin the ultralow viscous nylon 6 slice polyplant of property and operating method |
| CN111253566A (en) * | 2020-02-14 | 2020-06-09 | 东华大学 | Polyamide 6 polycondensation reactor for efficient devolatilization and green recovery of polymerized monomers |
| CN112675802A (en) * | 2020-12-30 | 2021-04-20 | 海阳科技股份有限公司 | Nylon 56 slice production device and preparation method |
-
2017
- 2017-08-29 CN CN201721095388.3U patent/CN207159126U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385093A (en) * | 2019-07-05 | 2019-10-29 | 江苏海阳化纤有限公司 | A kind of resistance of eutectic is high to spin the ultralow viscous nylon 6 slice polyplant of property and operating method |
| CN111253566A (en) * | 2020-02-14 | 2020-06-09 | 东华大学 | Polyamide 6 polycondensation reactor for efficient devolatilization and green recovery of polymerized monomers |
| CN111253566B (en) * | 2020-02-14 | 2021-04-06 | 东华大学 | Polyamide 6 polycondensation reactor for efficient devolatilization and green recovery of polymerized monomers |
| CN112675802A (en) * | 2020-12-30 | 2021-04-20 | 海阳科技股份有限公司 | Nylon 56 slice production device and preparation method |
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