CN201517082U - Anti-plugging device for hot well of vacuum system of PTT continuous polymerization device - Google Patents
Anti-plugging device for hot well of vacuum system of PTT continuous polymerization device Download PDFInfo
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- CN201517082U CN201517082U CN200920189379XU CN200920189379U CN201517082U CN 201517082 U CN201517082 U CN 201517082U CN 200920189379X U CN200920189379X U CN 200920189379XU CN 200920189379 U CN200920189379 U CN 200920189379U CN 201517082 U CN201517082 U CN 201517082U
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- hot well
- sedimentation tank
- vacuum system
- pipeline
- continuous polymerization
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Abstract
The utility model discloses an anti-plugging device used for a hot well of a vacuum system of a PTT continuous polymerization device. The anti-plugging device comprises a sedimentation tank arranged below a hot well of a vacuum system, a pipeline communicated with the hot well and the sedimentation tank, a valve arranged on the pipeline and used for controlling the communication and the disconnection of the pipeline and a steam channel and a condensed water channel which are respectively used for performing heating and cooling to the hot well. The utility model can prevent the cyclic dimer from being aggregated to block the hot well and ensure the effective operation of the vacuum system for the PTT continuous polymerization device.
Description
Technical field
The utility model relates to a kind of antiplugging apparatus of PTT continuous polymerization unit vacuum system hot well.
Background technology
Poly(Trimethylene Terephthalate) (PTT) is a kind of new polyester material that has development prospect of the mid-90 in 20th century commercial exploitation success.It and PET, PBT belong to the novel organic polymer aromatic polyester product of same series of polymers.PTT succeeds in developing, and has further enriched fiber product series.Can produce a large amount of cyclic dimers in the PTT polymerization process, the oligomer molecules amount that produces with common PET polymerization vacuum system is different, the described cyclic dimer that the PTT polymerization produces has stable structure, and fusing point is lower, under vacuum state, after the condensation of polycondensation condenser spray, be transformed into the semisolid state of heavy-gravity half liquid, and, be difficult for handling very easily in the vacuum system deposition, get off for a long time to cause the obstruction of vacuum system hot well, have a strong impact on the safe operation of vacuum system.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of antiplugging apparatus of PTT continuous polymerization unit vacuum system hot well.
For solving above technical problem, the utility model is taked following technical scheme:
A kind of antiplugging apparatus of PTT continuous polymerization unit vacuum system hot well, comprise the below of the hot well that is arranged on vacuum system sedimentation tank, be communicated with hot well and sedimentation tank pipeline, be arranged on and be used to control pipeline on the pipeline and be in the valve opening or disconnect, be respectively applied for the vapour passage and the condensation water channel that hot well are carried out heating and cooling.
According to the utility model, between sedimentation tank and hot well, also be provided with equilibrium valve.In addition, offer the inlet that enters at least one people on the sedimentation tank, it is empty that sedimentation tank has the cleaning personnel selection, can open inlet in case of necessity, personnel entered in the sedimentation tank clear up.
Because the enforcement of above technical scheme, the utility model compared with prior art has following advantage:
Have the sedimentation tank of poising action and partly use steam and water of condensation by interpolation, realized the condensation sedimentation and the heating cleaning of cyclic dimer in the hot well respectively, avoid cyclic dimer to stop up hot well at hot well.
Description of drawings
The utility model is described in more detail below in conjunction with accompanying drawing and concrete embodiment.
Fig. 1 is the structural representation with vacuum system of PTT continuous polymerization unit of the present utility model;
Wherein: 1, hot well; 2, sedimentation tank; 3, pipeline; 4, valve; 5, vapour passage; 6, condensation water channel; 7, equilibrium valve; 20, inlet; 21, residual cake valve; 22, steam-pipe; 8, liquidometer.
Embodiment
As shown in Figure 1, according to the antiplugging apparatus of present embodiment comprise the below of the hot well 1 that is arranged on vacuum system sedimentation tank 2, be communicated with hot well 1 and sedimentation tank 2 pipeline 3, be arranged on and be used to control pipeline 3 on the pipeline 3 and be in the valve 4 opening or disconnect, be used for the vapour passage 5 of steam so that hot well 1 is heated being provided, being used for providing water of condensation so that hot well 1 is carried out refrigerative condensation water channel 6 to hot well 1 to hot well 1.
When poly-unit ran well, the valve 4 between sedimentation tank 2 and the hot well 1 was opened, and the most of cyclic dimer that produces in the polymerization process is known from experience by pipeline 3 inflow sedimentation tanks 2.There is the equilibrium valve 7 that is communicated with hot well 1 side of sedimentation tank 2, can keep the balance of hot well 1.
Under standard state, the ON cycle water coolant feeds water coolant by condensation water channel 6 in the chuck of hot well 1, vacuum follow change PDO can be in this effective cooling, simultaneously, cyclic dimer condensation in hot well 1 that polymerization produces is settled down to hot well 1 bottom.When carrying out regular cyclic dimer cleaning operation, cut off the chuck of recirculated water and emptying hot well 1, open steam then, in it, feed steam by vapour passage 5, hot well 1 is heated, thereby make the sedimentary cyclic dimer thawing of still wall of hot well 1 and be deposited to sedimentation tank 2.Hot well 1 is provided with magnetic force liquidometer 8, can keep level stability; Simultaneously, because mistress in the hot well 1 minute, can not cause that to the heating of its outer wall cycle P DO temperature raises and vacuum system is exerted an influence.
The bottom of sedimentation tank 2 offers discharge outlet, be provided with residual cake valve 21 at the discharge outlet place, and the side at sedimentation tank 2 is connected with steam-pipe 22, sedimentary material in the sedimentation tank 2 can be discharged from the bottom by residual cake valve 21, after treating that all material dischargings finish, open steam-pipe 22, make attached to the cyclic dimer on the still wall and be melt into the liquid outflow, further clear up sedimentation tank 2.In addition, a side of sedimentation tank 2 also offers the inlet 20 that can supply the people to enter, and it is empty that sedimentation tank 2 has the cleaning personnel selection, can open in case of necessity, and personnel enter and clear up.
Use antiplugging apparatus of the present utility model in time the cyclic dimer that produces in the hot well to be removed, prevent that hot well from stopping up, guarantee that the vacuum system of PTT continuous polymerization unit is effectively moved.
More than the utility model has been done detailed description, but the utility model is not limited to the above embodiments.All equivalences of doing according to spirit of the present utility model change or modify, and all should be encompassed in the protection domain of the present utility model.
Claims (4)
1. the antiplugging apparatus of a PTT continuous polymerization unit vacuum system hot well is characterized in that: comprise the below of the hot well (1) that is arranged on vacuum system sedimentation tank (2), be communicated with described hot well (1) and described sedimentation tank (2) pipeline (3), be arranged on and be used to control described pipeline (3) on the described pipeline (3) and be in the valve (4) opening or disconnect, be respectively applied for the vapour passage (5) and the condensation water channel (6) that described hot well (1) are carried out heating and cooling.
2. antiplugging apparatus according to claim 1 is characterized in that: also be provided with equilibrium valve (7) between described sedimentation tank (2) and described hot well (1).
3. antiplugging apparatus according to claim 1 is characterized in that: offer the inlet (20) that enters at least one people on the described sedimentation tank (2), it is empty that described sedimentation tank (2) has the cleaning personnel selection.
4. according to each described antiplugging apparatus in the claim 1 to 3, it is characterized in that: a side of described sedimentation tank (2) also is connected with vapour passage (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920189379XU CN201517082U (en) | 2009-09-29 | 2009-09-29 | Anti-plugging device for hot well of vacuum system of PTT continuous polymerization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920189379XU CN201517082U (en) | 2009-09-29 | 2009-09-29 | Anti-plugging device for hot well of vacuum system of PTT continuous polymerization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517082U true CN201517082U (en) | 2010-06-30 |
Family
ID=42497802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920189379XU Expired - Lifetime CN201517082U (en) | 2009-09-29 | 2009-09-29 | Anti-plugging device for hot well of vacuum system of PTT continuous polymerization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517082U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212186A (en) * | 2011-03-11 | 2011-10-12 | 浙江万凯新材料有限公司 | Mechanical sealing, lubricating, cooling and circulating system of PET (poly(ethylene terephthalate)) final polymerization kettle |
| CN107976086A (en) * | 2017-12-04 | 2018-05-01 | 中国船舶重工集团公司第七〇九研究所 | A kind of anti-dissolved oxygen hot well device |
-
2009
- 2009-09-29 CN CN200920189379XU patent/CN201517082U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212186A (en) * | 2011-03-11 | 2011-10-12 | 浙江万凯新材料有限公司 | Mechanical sealing, lubricating, cooling and circulating system of PET (poly(ethylene terephthalate)) final polymerization kettle |
| CN102212186B (en) * | 2011-03-11 | 2013-03-13 | 浙江万凯新材料有限公司 | Mechanical sealing, lubricating, cooling and circulating system of PET (poly(ethylene terephthalate)) final polymerization kettle |
| CN107976086A (en) * | 2017-12-04 | 2018-05-01 | 中国船舶重工集团公司第七〇九研究所 | A kind of anti-dissolved oxygen hot well device |
| CN107976086B (en) * | 2017-12-04 | 2024-01-09 | 中国船舶重工集团公司第七一九研究所 | Anti-dissolved oxygen hot well device |
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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: 20100630 |