CN103846071B - Autocontrol method in a kind of epoxy plasticizer production and device - Google Patents
Autocontrol method in a kind of epoxy plasticizer production and device Download PDFInfo
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- CN103846071B CN103846071B CN201410092330.8A CN201410092330A CN103846071B CN 103846071 B CN103846071 B CN 103846071B CN 201410092330 A CN201410092330 A CN 201410092330A CN 103846071 B CN103846071 B CN 103846071B
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- valve
- hydrogen peroxide
- temperature
- pressure
- ball valve
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- 239000004593 Epoxy Substances 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000004014 plasticizer Substances 0.000 title claims abstract description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000000498 cooling water Substances 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 239000013535 sea water Substances 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 230000007812 deficiency Effects 0.000 description 1
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- Polymerisation Methods In General (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses the autocontrol method in the production of a kind of epoxy plasticizer and device, to the rate of addition of reaction, reaction temperature, reactor pressure, cooling water flow etc. control automatically.The present invention is by the rate of addition of governor valve control hydrogen peroxide, and use governor valve control cooling water flow, then by the temperature sensor inside hydrogen peroxide rate of addition and reactor and the interlock of water cooling flow, to the dropping occurred in reaction, insulation and temperature-fall period realize automatic control completely, greatly reduce the labour intensity of operating personnel, add epoxy reactive stability, make product quality more stable.
Description
Technical field
The present invention relates to a kind of control method and device, the autocontrol method in particular in a kind of epoxy plasticizer production and device.
Background technology
The production of present epoxy plasticizer is all use manually operated method, such as control flow with manual ball valve and control rate of addition, by the flow-control reaction temperature of manual ball valve controlled cooling model water, reactor pressure etc. is always controlled with hand switch pressure-regulating valve, naturally advantage easy and simple to handle is had with manual control, but also there is reaction stability difference simultaneously, reaction temperature fluctuation is large, labor strength is large, workman is required high, working environment is undesirable, and some operation has the shortcomings such as certain risk.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide the autocontrol method in the production of a kind of epoxy plasticizer and device, to the rate of addition of reaction, reaction temperature, reactor pressure, cooling water flow etc. control automatically.
The present invention is achieved by the following technical solutions, the present invention includes following steps:
(1) stage is dripped
In reactor, hydrogen peroxide continues to drip, when temperature of charge is elevated to setting value 60 DEG C, open cooling sea water regulating valve, start water-cooled, when temperature continues to raise, cooling water flow strengthens, and when reaching 61 DEG C, hydrogen peroxide drips flow and reduces, cooling water flow increases, if temperature continues to rise to 62 DEG C, then close hydrogen peroxide completely and drip, cooling water flow is added to maximum, until temperature is reduced to less than 62 DEG C, temperature is controlled between 60 ~ 62 DEG C;
(2) holding stage
After being added dropwise to complete, in 30 minutes, make temperature of charge rise to 68 DEG C, then start insulation, holding stage set temperature is between 68 ~ 70 DEG C;
(3) temperature-fall period
Cool to 55 DEG C after insulation terminates, cooling water flow is adjusted to maximum until temperature arrives 55 DEG C;
(4) Stress control
Arrange Pressure maximum value 0.02 ~ 0.1MPa, when reacting kettle inner pressure arrives maximum, pressure-regulating valve pressure release, realizes pressure automatic control with this.
In described step (2), place heater in reactor, temperature rises through stage intensification and realizes.
Automaton in a kind of epoxy plasticizer production, comprise reactor, hydrogen peroxide drips control valve, cooling sea water regulating valve, hydrogen peroxide head tank, pressure sensor, pressure-regulating valve, temperature sensor and controller, described controller connects hydrogen peroxide respectively and drips control valve, cooling sea water regulating valve, pressure sensor, pressure-regulating valve and temperature sensor, hydrogen peroxide drips control valve, cooling sea water regulating valve, hydrogen peroxide head tank, pressure sensor, temperature sensor is coupled reaction still respectively, pressure-regulating valve is connected with pressure sensor, hydrogen peroxide drips control valve and is connected with hydrogen peroxide head tank.
It is identical with chilled water modulation valve arrangement that described hydrogen peroxide drips control valve, include the first ball valve, pneumatic operated valve, flowmeter, the second ball valve and the 3rd ball valve, described first ball valve, pneumatic operated valve, flowmeter, the second ball valve are connected successively, the two ends of the 3rd ball valve are connected in parallel on the outlet of the first ball valve and the import of the second ball valve, the outlet of the first ball valve is connected on reactor, and described pneumatic operated valve and flowmeter are connected respectively to controller.
The present invention has the following advantages compared to existing technology: the present invention is by the rate of addition of governor valve control hydrogen peroxide, and use governor valve control cooling water flow, then by the temperature sensor inside hydrogen peroxide rate of addition and reactor and the interlock of water cooling flow, to the dropping occurred in reaction, insulation and temperature-fall period realize automatic control completely, greatly reduce the labour intensity of operating personnel, add epoxy reactive stability, make product quality more stable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Elaborate to embodiments of the invention below, the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, the present embodiment comprises reactor 1, hydrogen peroxide drips control valve, cooling sea water regulating valve, hydrogen peroxide head tank 2, pressure sensor 3, pressure-regulating valve 4, temperature sensor 5 and controller 6, described controller 6 connects hydrogen peroxide respectively and drips control valve, cooling sea water regulating valve, pressure sensor 3, pressure-regulating valve 4 and temperature sensor 5, hydrogen peroxide drips control valve, cooling sea water regulating valve, hydrogen peroxide head tank 2, pressure sensor 3, temperature sensor 5 is coupled reaction still 1 respectively, pressure-regulating valve 4 is connected with pressure sensor 3, hydrogen peroxide drips control valve and is connected with hydrogen peroxide head tank 2.
It is identical with chilled water modulation valve arrangement that hydrogen peroxide drips control valve, comprise the first ball valve 7, pneumatic operated valve 8, flowmeter 9, second ball valve 10 and the 3rd ball valve 11 respectively, described first ball valve 7, pneumatic operated valve 8, flowmeter 9, second ball valve 10 are connected successively, the two ends of the 3rd ball valve 11 are connected in parallel on the outlet of the first ball valve 7 and the import of the second ball valve 10, the outlet of the first ball valve 7 is connected on reactor 1, and described pneumatic operated valve 8 and flowmeter 9 are connected respectively to controller 6.
The autocontrol method of the present embodiment comprises the following steps:
(1) stage is dripped
In reactor 1, hydrogen peroxide continues to drip, when temperature of charge is elevated to setting value 60 DEG C, open cooling sea water regulating valve, start water-cooled, when temperature continues to raise, cooling water flow strengthens, and when reaching 61 DEG C, hydrogen peroxide drips flow and reduces, cooling water flow increases, if temperature continues to rise to 62 DEG C, then close hydrogen peroxide completely and drip, cooling water flow is added to maximum, until temperature is reduced to less than 62 DEG C, temperature is controlled between 60 ~ 62 DEG C;
(2) holding stage
After being added dropwise to complete, in 30 minutes, make temperature of charge rise to 68 DEG C, place heater in reactor 1, temperature rises through stage intensification and realizes, and then start insulation, holding stage set temperature is between 68 ~ 70 DEG C;
(3) temperature-fall period
Cool to 55 DEG C after insulation terminates, cooling water flow is adjusted to maximum until temperature arrives 55 DEG C;
(4) Stress control
Arrange Pressure maximum value 0.02 ~ 0.1MPa, when pressure in reactor 1 arrives maximum, pressure-regulating valve 4 pressure release, realizes pressure automatic control with this.
Claims (2)
1. the autocontrol method in epoxy plasticizer production, is characterized in that, comprise the following steps:
(1) stage is dripped
In reactor, hydrogen peroxide continues to drip, when temperature of charge is elevated to setting value 60 DEG C, open cooling sea water regulating valve, start water-cooled, when temperature continues to raise, cooling water flow strengthens, and when reaching 61 DEG C, hydrogen peroxide drips flow and reduces, cooling water flow increases, if temperature continues to rise to 62 DEG C, then close hydrogen peroxide completely and drip, cooling water flow is added to maximum, until temperature is reduced to less than 62 DEG C, temperature is controlled between 60 ~ 62 DEG C;
(2) holding stage
After being added dropwise to complete, in 30 minutes, make temperature of charge rise to 68 DEG C, then start insulation, holding stage set temperature is between 68 ~ 70 DEG C;
(3) temperature-fall period
Cool to 55 DEG C after insulation terminates, cooling water flow is adjusted to maximum until temperature arrives 55 DEG C;
(4) Stress control
Arrange Pressure maximum value 0.02 ~ 0.1MPa, when reacting kettle inner pressure arrives maximum, pressure-regulating valve pressure release, realizes pressure automatic control with this;
The device of automatic control comprises reactor, hydrogen peroxide drips control valve, cooling sea water regulating valve, hydrogen peroxide head tank, pressure sensor, pressure-regulating valve, temperature sensor and controller, described controller connects hydrogen peroxide respectively and drips control valve, cooling sea water regulating valve, pressure sensor, pressure-regulating valve and temperature sensor, hydrogen peroxide drips control valve, cooling sea water regulating valve, hydrogen peroxide head tank, pressure sensor, temperature sensor is coupled reaction still respectively, pressure-regulating valve is connected with pressure sensor, hydrogen peroxide drips control valve and is connected with hydrogen peroxide head tank,
It is identical with chilled water modulation valve arrangement that described hydrogen peroxide drips control valve, include the first ball valve, pneumatic operated valve, flowmeter, the second ball valve and the 3rd ball valve, described first ball valve, pneumatic operated valve, flowmeter, the second ball valve are connected successively, the two ends of the 3rd ball valve are connected in parallel on the outlet of the first ball valve and the import of the second ball valve, the outlet of the first ball valve is connected on reactor, and described pneumatic operated valve and flowmeter are connected respectively to controller.
2. the autocontrol method in a kind of epoxy plasticizer production according to claim 1, it is characterized in that, in described step (2), place heater in reactor, temperature rises through stage intensification and realizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410092330.8A CN103846071B (en) | 2014-03-13 | 2014-03-13 | Autocontrol method in a kind of epoxy plasticizer production and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410092330.8A CN103846071B (en) | 2014-03-13 | 2014-03-13 | Autocontrol method in a kind of epoxy plasticizer production and device |
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| Publication Number | Publication Date |
|---|---|
| CN103846071A CN103846071A (en) | 2014-06-11 |
| CN103846071B true CN103846071B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410092330.8A Active CN103846071B (en) | 2014-03-13 | 2014-03-13 | Autocontrol method in a kind of epoxy plasticizer production and device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104587932B (en) * | 2015-01-28 | 2016-06-08 | 浙江华亿工程设计有限公司 | A kind of dropwise reaction explosion-resisting method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914076A (en) * | 2010-07-26 | 2010-12-15 | 江阴市向阳科技有限公司 | Method for preparing non-toxic environmental-friendly epoxy plasticizer |
| CN202516542U (en) * | 2012-03-06 | 2012-11-07 | 美药星（南京）制药有限公司 | PH and temperature automatic control system for reaction kettle |
| CN103305347A (en) * | 2013-07-03 | 2013-09-18 | 江南大学 | Method for preparing environment-friendly plasticizer by high concentration hydrogen peroxide epoxidized oil |
| CN203829996U (en) * | 2014-03-13 | 2014-09-17 | 安徽天意环保科技有限公司 | Automatic control device in production of epoxy plasticizer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58111808A (en) * | 1981-12-25 | 1983-07-04 | Mitsubishi Chem Ind Ltd | Method and apparatus for production of polyolefin |
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- 2014-03-13 CN CN201410092330.8A patent/CN103846071B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914076A (en) * | 2010-07-26 | 2010-12-15 | 江阴市向阳科技有限公司 | Method for preparing non-toxic environmental-friendly epoxy plasticizer |
| CN202516542U (en) * | 2012-03-06 | 2012-11-07 | 美药星（南京）制药有限公司 | PH and temperature automatic control system for reaction kettle |
| CN103305347A (en) * | 2013-07-03 | 2013-09-18 | 江南大学 | Method for preparing environment-friendly plasticizer by high concentration hydrogen peroxide epoxidized oil |
| CN203829996U (en) * | 2014-03-13 | 2014-09-17 | 安徽天意环保科技有限公司 | Automatic control device in production of epoxy plasticizer |
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| CN103846071A (en) | 2014-06-11 |
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Denomination of invention: An automatic control method and device for the production of epoxy plasticizers Effective date of registration: 20231204 Granted publication date: 20160120 Pledgee: Chaohu rural commercial bank Limited by Share Ltd. Pledgor: ANHUI TIANYI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2023980069085 |