CN206793628U - A kind of online Viscosity Monitoring device of small-sized PET polymeric kettles - Google Patents
A kind of online Viscosity Monitoring device of small-sized PET polymeric kettles Download PDFInfo
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- CN206793628U CN206793628U CN201720499003.3U CN201720499003U CN206793628U CN 206793628 U CN206793628 U CN 206793628U CN 201720499003 U CN201720499003 U CN 201720499003U CN 206793628 U CN206793628 U CN 206793628U
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Abstract
A kind of online Viscosity Monitoring device of small-sized PET polymeric kettles, pillar is fixed including torsion cylinder, the fixed pillar is provided with position adjustments post, the position adjustments post links horizontal circle, the horizontal circle is linked by elastic component and torsion cylinder, the torsion cylinder is provided with pointer, and for being indicated on horizontal circle, the agitating shaft among torsion cylinder is used as the rotor of the viscosity detecting device.The utility model, the reaction process that PET polymerize can be monitored on-line, intuitively show PET relative viscosity, reflect the molecular size range of polymerization system, it is simpler compared to online Viscosity Monitoring apparatus structure described in other monitoring methods, it is highly reliable.
Description
Technical field
The utility model is related to a kind of online Viscosity Monitoring device, and in particular to a kind of small-sized PET polymeric kettles it is online
Viscosity detecting device.
Background technology
During polymer polymerizing, its molecular size range is one of main index, and molecular weight has corresponding close with viscosity
System, the usual bigger viscosity of molecular weight are bigger.Viscosity measurement simultaneously plays to the motion state for understanding fluid properties and Study of Fluid
Important effect.The viscosity of on-line checking fluid is frequently necessary in Practical Project and pilot plant test, to ensure optimal process
Running environment and product quality, so as to improve productivity effect.Often through the viscosity of monitoring reaction system in PET polymerization processes
To monitor molecular size range and judge reaction end.
At present, in the viscosity in monitoring polymerization system, sampling and testing is largely needed, on-line real time monitoring is inconvenient,
Existing viscosimeter structure is complex, in small-sized tank reactor, and can not fully meet the requirement of on-line checking.
The content of the invention
The purpose of this utility model is the online viscosity for providing PET polymerisations a kind of simple in construction, highly reliable
Detection means, meet needs of the small-sized polymerization kettle to the on-line monitoring of high polymer polymerization system viscosity.
To achieve the above object, the technical scheme that the utility model is taken is：
A kind of online Viscosity Monitoring device of small-sized PET polymeric kettles, including torsion cylinder fix pillar, and the torsion cylinder is fixed
Pillar is provided with position adjustments post, and the position adjustments post links horizontal circle, and the horizontal circle is by elastic component with turning round
Power cylinder links, and the torsion cylinder is provided with pointer, and for being indicated on horizontal circle, the agitating shaft among torsion cylinder is used as described
The rotor of viscosity detecting device.
Polymerisation initial stage, above-mentioned torsion cylinder are located above liquid level, and polymerization reaction late stage is with the increasing of polymer molecular weight
Greatly, there is bag axle effect, the liquid near agitating shaft climbs along agitating shaft, and the gap between the torsion cylinder and agitating shaft is filled
Expire liquid to be monitored, pointer indicates scale on the torsion cylinder.
By using above-mentioned technical proposal, the reaction process that PET polymerize can be monitored on-line, intuitively show PET
Viscosity, reflect the molecular size range of polymerization system, compared to online Viscosity Monitoring apparatus structure described in other monitoring methods more
Add simply, it is highly reliable.
Brief description of the drawings
A kind of online Viscosity Monitoring apparatus structure schematic diagram of small-sized PET polymeric kettles of Fig. 1.
In figure：1- torsion cylinders fix pillar；2- position adjustments posts；3- horizontal circles；4- elastic components；5- torsion cylinders；6-
Agitating shaft；7- graduated scales；8- pointers.
Embodiment
Made with reference to accompanying drawing small-sized PET polymeric kettles a kind of to the utility model of the embodiment of online Viscosity Monitoring device into one
Walk explanation.
A kind of online Viscosity Monitoring device of small-sized PET polymeric kettles, including torsion cylinder fix pillar 1, and torsion cylinder fixes branch
Post 1 is provided with position adjustments post 2, and the position adjustments post 2 links horizontal circle 3, and the horizontal circle 3 passes through elastic component 4
Being linked with torsion cylinder 5, the torsion cylinder 5 is provided with pointer 8, for being indicated on horizontal circle 3, the stirring among torsion cylinder 5
Axle 6 is used as the rotor of the Viscosity Monitoring device.
Polymerisation torsion cylinder at initial stage 5 is located above liquid level, and polymerization reaction late stage goes out with the increase of polymer molecular weight
Now bag axle effect, the liquid near agitating shaft 6 climb along agitating shaft 6, and the gap between torsion cylinder 5 and agitating shaft 6 is full of liquid
Body.Agitating shaft 6 serves as rotor, and viscosity is different under same rotating speed, and the moment of torsion being reflected on torsion cylinder 5 is different, and pointer 8 is in dial
The scale indicated on 3 is also different.R in Fig. 11、R2It is constant with L, the coefficient of elasticity that four elastic components 4 are acted on torsion cylinder 5 is
It is determined that value, controls the rotating speed can of agitating shaft 6 by observing the deflection situation of pointer 8 so as to measure the viscosity of PET polymerization systems.
The relation of viscosity and the deflection angle of pointer 8 is established with the liquid of known-viscosity in the case where specifying the rotating speed of agitating shaft 6, is drawn
Go out deflection angle-viscograph.PET agitating shafts 6 in polymerisation use identical rotating speed, now with the deflection angle of pointer 8
Compare the i.e. available now PET viscosity numbers of deflection angle-viscograph.
Claims (3)
- A kind of 1. online Viscosity Monitoring device of small-sized PET polymeric kettles, it is characterised in that：The Viscosity Monitoring apparatus structure includes turning round Power cylinder fixes pillar (1), and the torsion cylinder fixes pillar (1) and is provided with position adjustments post (2), position adjustments post (2) link Horizontal circle (3), the horizontal circle (3) are linked by elastic component (4) and torsion cylinder (5), and the torsion cylinder (5) is provided with Pointer (8), for being indicated on horizontal circle (3), the agitating shaft (6) among torsion cylinder (5) fills as the Viscosity Monitoring The rotor put.
- A kind of 2. online Viscosity Monitoring device of small-sized PET polymeric kettles according to claim 1, it is characterised in that：It is described to stir Mix the rotor that axle (6) serves as Viscosity Monitoring device.
- A kind of 3. online Viscosity Monitoring device of small-sized PET polymeric kettles according to claim 1, it is characterised in that：The torsion Power cylinder (5) is located above liquid level initial stage in polymerisation, and polymerization reaction late stage bag axle occurs with the increase of polymer molecular weight Effect, the liquid of agitating shaft (6) nearby climb along agitating shaft (6), and the gap between torsion cylinder (5) and agitating shaft (6) is full of Liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720499003.3U CN206793628U (en) | 2017-05-08 | 2017-05-08 | A kind of online Viscosity Monitoring device of small-sized PET polymeric kettles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720499003.3U CN206793628U (en) | 2017-05-08 | 2017-05-08 | A kind of online Viscosity Monitoring device of small-sized PET polymeric kettles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206793628U true CN206793628U (en) | 2017-12-26 |
Family
ID=60739201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720499003.3U Active CN206793628U (en) | 2017-05-08 | 2017-05-08 | A kind of online Viscosity Monitoring device of small-sized PET polymeric kettles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206793628U (en) |
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2017
- 2017-05-08 CN CN201720499003.3U patent/CN206793628U/en active Active
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