CN203443303U - Slicing and drying nitrogen constant temperature circulation system for chinlon 6 production - Google Patents
Slicing and drying nitrogen constant temperature circulation system for chinlon 6 production Download PDFInfo
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- CN203443303U CN203443303U CN201320414702.5U CN201320414702U CN203443303U CN 203443303 U CN203443303 U CN 203443303U CN 201320414702 U CN201320414702 U CN 201320414702U CN 203443303 U CN203443303 U CN 203443303U
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Abstract
The utility model relates to a slicing dry nitrogen constant temperature circulation system for chinlon 6 production. The system comprises a slicing and drying device and a sealed nitrogen circulating pipeline. A water cooling tower is in pipeline connection with a first heat exchange device, a circulation water outlet of the first heat exchange device is in through connection with an inlet formed in the top end of the water cooling tower, an outlet formed in the bottom end of the water cooling tower is in through connection with a circulation water inlet of the first heat exchange device, a freezing water inlet is formed in the first heat exchange device and is connected with a freezing water source pipeline, a freezing water flow adjusting device is arranged on a pipeline at the position of the freezing water inlet, and a temperature measuring device is arranged on a pipeline at the position of the circulation water outlet of the first heat exchange device. The system is reasonable in design and simple to operate, can accurately control a constant temperature device, can accurately control the input amount of freezing water in a plate type cooler, can accurately control dryness and the water content of polymer slices and effectively improves product quality.
Description
Technical field
The utility model relates to a kind of polyamide fibre 6 and produces by chip drying nitrogen constant temperature circulating system.
Background technology
In Pa-6 Polymerization production process, in dry sliced technical process, moisture in section is to make moisture vaporization saturated in nitrogen by Steam Heating, by circulating fan, the nitrogen of mix moisture is dewatered through water cooling tower again, nitrogen through dehydration is recycled in chip drying device, so constantly circulation.Water cooling tower is to rely on the recirculated water of panel cooler output that the nitrogen by water cooling tower is brought down below to steam close dew temperature to reach dehydrating effect.The stability of the circulating water temperature of panel cooler output directly affects the stability of dry sliced water content, yet recirculated water is lowered the temperature with chilled water exchange in panel cooler, be subject to chilled-water flow and cryogenic temperature influence of fluctuations larger, so the uncontrollable less stable of water content of current drying section.
Utility model content
The purpose of this utility model is to solve above-mentioned deficiency, provides a kind of polyamide fibre 6 to produce by chip drying nitrogen constant temperature circulating system.
The technical scheme that realizes the utility model object is: a kind of polyamide fibre 6 is produced by chip drying nitrogen constant temperature circulating system, comprise chip drying device, airtight nitrogen circulation pipeline, circulating fan drives nitrogen from chip drying device circulation process spraying cooling tower bottom, get back in chip drying device, water cooling tower is connected with the first heat-exchanger rig pipeline, the circulating water outlet of the first heat-exchanger rig connects and is connected with the entrance on water cooling tower top, and the outlet of water cooling tower bottom connects and is connected with the recirculated water entrance of the first heat-exchanger rig; Described the first heat-exchanger rig has chilled water inlet, it is connected with freezing water pipeline, on chilled water inlet place pipeline, chilled water flow quantity regulating device is set, on described the first heat-exchanger rig circulating water outlet place pipeline, temperature measuring equipment is set, also there is the temperature data that auto-controller receives temperature measuring equipment, and control the chilled water inlet that chilled water flow quantity regulating device regulates chilled water inlet.
Above-mentioned polyamide fibre 6 is produced by chip drying nitrogen constant temperature circulating system, and preferred described the first heat-exchanger rig is panel cooler.
Above-mentioned polyamide fibre 6 is produced by chip drying nitrogen constant temperature circulating system, and preferred described chilled water flow quantity regulating device is automatic regulating valve door.
Above-mentioned polyamide fibre 6 is produced by chip drying nitrogen constant temperature circulating system, and preferred described temperature measuring equipment is thermometric RTD.
The utlity model has positive effect: (1) the utility model is reasonable in design, simple to operate; (2) the utility model accurately arranges thermostatically-controlled equipment, can accurately control the input quantity of chilled water in panel cooler, thereby accurately controls the dry water content of polymerization section, and product quality is effectively promoted.
Accompanying drawing explanation
For content of the present utility model is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is structural representation of the present utility model.
Wherein: 1 drying device, 2 nitrogen circulation pipelines, 3 water cooling towers, 4 first heat-exchanger rigs, 5 circulating water outlets, 6 recirculated water entrances, 7 chilled water inlets, 8 freezing water sources, 9 chilled water flow quantity regulating devices, 10 temperature measuring equipments, 11 auto-controllers.
The specific embodiment
See Fig. 1, the utlity model has chip drying device 1, airtight nitrogen circulation pipeline 2 starts to be also finally circulated to chip drying device 1 from chip drying device 1, in circulating line 2, having circulating fan drives nitrogen from chip drying device 1 circulation process water cooling tower 3 bottoms, through heat exchange, get back in chip drying device 1, water cooling tower 3 is connected with the first heat-exchanger rig 4 pipelines, the circulating water outlet 5 of the first heat-exchanger rig 4 connects and is connected with the entrance on water cooling tower 3 tops, the outlet of water cooling tower 3 bottoms connects and is connected with the recirculated water entrance 6 of the first heat-exchanger rig 4, described the first heat-exchanger rig 4 has chilled water inlet 7, it is connected with freezing water source 8 pipelines, chilled water flow quantity regulating device 9 is set for automatic regulating valve door on chilled water inlet 7 place's pipelines, temperature measuring equipment 10 is set for thermometric RTD on first heat-exchanger rig 4 circulating water outlet 5 place's pipelines, also there is auto-controller 11 and connect temperature measuring equipment 10 and chilled water flow quantity regulating device 9, it receives the temperature data of temperature measuring equipment 10, compare with the temperature of setting, below or above design temperature, controlling chilled water flow quantity regulating device 9 regulates the chilled water inlet minimizing of chilled water inlet 7 or increases.Described the first heat-exchanger rig 4 is panel cooler.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a polyamide fibre 6 is produced by chip drying nitrogen constant temperature circulating system, comprise chip drying device (1), airtight nitrogen circulation pipeline (2), circulating fan drives nitrogen to get back to chip drying device (1) through water cooling tower (3) bottom from chip drying device (1) circulation, water cooling tower (3) is connected with the first heat-exchanger rig (4) pipeline, the circulating water outlet (5) of the first heat-exchanger rig (4) connects and is connected with the entrance on water cooling tower (3) top, the outlet of water cooling tower (3) bottom connects and is connected with the recirculated water entrance (6) of the first heat-exchanger rig (4), it is characterized in that: described the first heat-exchanger rig (4) has chilled water inlet (7), chilled water inlet (7) is connected with freezing water source (8) pipeline, chilled water inlet (7) locates to arrange on pipeline chilled water flow quantity regulating device (9), described the first heat-exchanger rig (4) circulating water outlet (5) locates to arrange on pipeline temperature measuring equipment (10), this system also has the temperature data that auto-controller (11) receives temperature measuring equipment (10), and controls the chilled water inlet that chilled water flow quantity regulating device (9) regulates chilled water inlet (7).
2. polyamide fibre 6 according to claim 1 is produced by chip drying nitrogen constant temperature circulating system, it is characterized in that: described the first heat-exchanger rig (4) is panel cooler.
3. polyamide fibre 6 according to claim 1 is produced by chip drying nitrogen constant temperature circulating system, it is characterized in that: described chilled water flow quantity regulating device (9) is automatic regulating valve door.
4. polyamide fibre 6 according to claim 3 is produced by chip drying nitrogen constant temperature circulating system, it is characterized in that: described temperature measuring equipment (10) is thermometric RTD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320414702.5U CN203443303U (en) | 2013-07-12 | 2013-07-12 | Slicing and drying nitrogen constant temperature circulation system for chinlon 6 production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320414702.5U CN203443303U (en) | 2013-07-12 | 2013-07-12 | Slicing and drying nitrogen constant temperature circulation system for chinlon 6 production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203443303U true CN203443303U (en) | 2014-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320414702.5U Expired - Lifetime CN203443303U (en) | 2013-07-12 | 2013-07-12 | Slicing and drying nitrogen constant temperature circulation system for chinlon 6 production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203443303U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307403A (en) * | 2018-10-22 | 2019-02-05 | 广东芬蓝环境科技有限公司 | Enclosed drying system and double air duct enclosed drying systems |
| CN111258343A (en) * | 2020-01-17 | 2020-06-09 | 扬子江药业集团有限公司 | Medicine oxygen content control system for medicine production and easily-oxidized medicine production method |
| CN112133495A (en) * | 2020-09-03 | 2020-12-25 | 重庆泰山电缆有限公司 | Catenary-chain-type cross-linking production line nitrogen cooling system special for cable production |
-
2013
- 2013-07-12 CN CN201320414702.5U patent/CN203443303U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307403A (en) * | 2018-10-22 | 2019-02-05 | 广东芬蓝环境科技有限公司 | Enclosed drying system and double air duct enclosed drying systems |
| CN111258343A (en) * | 2020-01-17 | 2020-06-09 | 扬子江药业集团有限公司 | Medicine oxygen content control system for medicine production and easily-oxidized medicine production method |
| CN111258343B (en) * | 2020-01-17 | 2021-08-03 | 扬子江药业集团有限公司 | Medicine oxygen content control system for medicine production and easily-oxidized medicine production method |
| CN112133495A (en) * | 2020-09-03 | 2020-12-25 | 重庆泰山电缆有限公司 | Catenary-chain-type cross-linking production line nitrogen cooling system special for cable production |
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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: 20140219 |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 28, 2023, the expiration and termination of the 39-volume 3002 patent Number: 30-02 Volume: 39 |