CN203613132U - High-efficiency high-pressure polyethylene coiled pipe polymerization reactor - Google Patents
High-efficiency high-pressure polyethylene coiled pipe polymerization reactor Download PDFInfo
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- CN203613132U CN203613132U CN201320863878.9U CN201320863878U CN203613132U CN 203613132 U CN203613132 U CN 203613132U CN 201320863878 U CN201320863878 U CN 201320863878U CN 203613132 U CN203613132 U CN 203613132U
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- China
- Prior art keywords
- heat exchange
- pipe
- coiled pipe
- reaction
- coil pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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Abstract
The utility model relates to a reaction device in the field of chemical industry, in particular to a high-efficiency high-pressure polyethylene coiled pipe polymerization reactor, which comprises a heat exchange coiled pipe, a reaction coiled pipe and a shell, wherein the heat exchange coiled pipe is formed by alternately connecting an expanding pipe and an equal-diameter pipe, and is sleeved on the periphery of the reaction coiled pipe; a raw material inlet of the reaction coiled pipe, a tube pass heat exchange medium outlet of the heat exchange coiled pipe and a shell pass heat exchange medium inlet of the heat exchange coiled pipe are formed in the top of the shell; a raw material outlet of the reaction coiled pipe, a tube pass heat exchange medium inlet of the heat exchange coiled pipe and a shell pass heat exchange medium outlet of the heat exchange coiled pipe are formed in the bottom of the shell. The high-efficiency high-pressure polyethylene coiled pipe polymerization reactor is reasonable in structural design, convenient to operate, applicable to the production of polyethylene of various types, high in conversion efficiency, short in reaction time and low in production cost, and has good heat exchange effects; when a monomeric substance or catalyst flows through the expanding pipe and the equal-diameter pipe, the flowing state of the monomeric substance or catalyst in the pipes is changed, and the degree of turbulence is improved, so that the problem of low monomer conversion rate is solved.
Description
Technical field
The utility model relates to a kind of reaction unit of chemical field, relates in particular to the efficient coil pipe polymerization reactor of a kind of high-pressure polyethylene.
Background technology
Coil pipe polymerization reactor is the main device of producing high-pressure polyethylene, for producing different types of polyethylene, for example high density polyethylene(HDPE), hp-ldpe or linear low density polyethylene, but existing production equipment is because structure design is unreasonable, make long reaction time, heat transfer effect bad, and then can affect the poly production efficiency of different sorts, and cause production cost high, conversion of monomer efficiency is low.
Summary of the invention
The utility model, for above-mentioned the deficiencies in the prior art, provides a kind of high-pressure polyethylene efficient coil pipe polymerization reactor.
The efficient coil pipe polymerization reactor of high-pressure polyethylene of the present utility model, comprise heat exchange coil, reaction coil pipe and housing, described reaction coil pipe is to be cross-linked and to be formed by expansion tube and equal pipe, heat exchange coil is placed on the periphery of reaction coil pipe, heat exchange coil and reaction coil pipe rise with identical center of circle rotation, and the circumference number that rotation is risen is identical, case top is provided with the feed(raw material)inlet of reaction coil pipe, the outlet of tube side heat transferring medium and the shell side heat transferring medium entrance of heat exchange coil, housing bottom is provided with the material outlet of reaction coil pipe, the tube side heat transferring medium entrance of heat exchange coil and the outlet of shell side heat transferring medium.
As further improvement of the utility model, described expansion tube is 1.1～1.3:1 with the diameter of equal pipe ratio, and expansion tube two ends are provided with contraction section, its port is threaded with equal pipe.
As further improvement of the utility model, the diameter of described heat exchange coil is 1 ~ 3 times of reaction coil diameter.
As further improvement of the utility model, in described housing, be provided with coil pipe fixed link.
The efficient coil pipe polymerization reactor of high-pressure polyethylene of the present utility model, reasonable in design, easy and simple to handle, be applicable to the poly production of each model, its transformation efficiency is high, heat exchange effect good, reaction times is short, production cost is low, and monomeric substance or catalyzer, in the time flowing through expansion tube and equal pipe, have changed flow state in pipe, increase turbulent extent, solved the low problem of monomer conversion.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the structural representation of reaction coil pipe of the present utility model.
Embodiment
As depicted in figs. 1 and 2, the efficient coil pipe polymerization reactor of high-pressure polyethylene of the present utility model, comprise heat exchange coil 1, reaction coil pipe 2 and housing 3, described reaction coil pipe 2 is to be cross-linked and to be formed by expansion tube 4 and equal pipe 5, heat exchange coil 1 is placed on the periphery of reaction coil pipe 2, heat exchange coil 1 and reaction coil pipe 2 rise with identical center of circle rotation, and the circumference number that rotation is risen is identical, housing 3 tops are provided with the feed(raw material)inlet 6 of reaction coil pipe 2, the outlet 11 of tube side heat transferring medium and the shell side heat transferring medium entrance 7 of heat exchange coil 1, housing 3 bottoms are provided with the material outlet 8 of reaction coil pipe 2, the tube side heat transferring medium entrance 12 of heat exchange coil 1 and shell side heat transferring medium outlet 9.Described expansion tube 4 is 1.1～1.3:1 with the diameter ratio of equal pipe 5, and expansion tube 4 two ends are provided with contraction section, its port is threaded with equal pipe 5.The diameter of described heat exchange coil 1 is 1 ~ 3 times of reaction coil pipe 2 diameters.In described housing 3, be provided with coil pipe fixed link 10.
In the time producing, raw material enters reaction coil pipe 2 by feed(raw material)inlet 6, raw material heat transferring medium enters heat exchange coil 1 by tube side heat transferring medium entrance 12, according to the temperature of reaction that variant production is required, raw material is carried out to heat exchange, along with the carrying out of heat exchange, the temperature of raw material heat transferring medium also can change, in order to increase the stability of temperature, the heat transferring medium of raw material heat transferring medium enters housing 3 by shell side heat transferring medium entrance 7, for raw material heat transferring medium carries out heat exchange.For further heat exchanging temperature is monitored, can be in the inside of heat exchange coil 1, outside and outer hull 3 inside, the heat exchange coil 1 of reaction coil pipe 2 set up device for monitoring temperature, temperature in heat exchanging coil pipe 1 is monitored in real time, and then adjust the temperature of reaction in reaction coil pipe 2, improve polyethylene production efficiency.Also can set up fixed block in the outside, the inside of heat exchange coil 1 of reaction coil pipe 2, firm with heat exchange coil 1 position to guarantee reacting coil pipe 2, can be due to not the carrying out of chemical reaction the change of occurrence positions.
Claims (4)
1. the efficient coil pipe polymerization reactor of high-pressure polyethylene, comprise heat exchange coil (1), reaction coil pipe (2) and housing (3), it is characterized in that described reaction coil pipe (2) is to be cross-linked and to be formed by expansion tube (4) and equal pipe (5), heat exchange coil (1) is placed on the periphery of reaction coil pipe (2), heat exchange coil (1) and reaction coil pipe (2) rise with identical center of circle rotation, and the circumference number that rotation is risen is identical, housing (3) top is provided with the feed(raw material)inlet (6) of reaction coil pipe (2), the outlet of tube side heat transferring medium (11) and the shell side heat transferring medium entrance (7) of heat exchange coil (1), housing (3) bottom is provided with the material outlet (8) of reaction coil pipe (2), the tube side heat transferring medium entrance (12) of heat exchange coil (1) and shell side heat transferring medium outlet (9).
2. the efficient coil pipe polymerization reactor of high-pressure polyethylene according to claim 1, it is characterized in that described expansion tube (4) and the diameter ratio of equal pipe (5) are 1.1～1.3:1, expansion tube (4) two ends are provided with contraction section, its port is threaded with equal pipe (5).
3. the efficient coil pipe polymerization reactor of high-pressure polyethylene according to claim 1, the diameter that it is characterized in that described heat exchange coil (1) is 1 ~ 3 times of reaction coil pipe (2) diameter.
4. the efficient coil pipe polymerization reactor of high-pressure polyethylene according to claim 1, is characterized in that being provided with coil pipe fixed link (10) in described housing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863878.9U CN203613132U (en) | 2013-12-26 | 2013-12-26 | High-efficiency high-pressure polyethylene coiled pipe polymerization reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863878.9U CN203613132U (en) | 2013-12-26 | 2013-12-26 | High-efficiency high-pressure polyethylene coiled pipe polymerization reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203613132U true CN203613132U (en) | 2014-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320863878.9U Expired - Fee Related CN203613132U (en) | 2013-12-26 | 2013-12-26 | High-efficiency high-pressure polyethylene coiled pipe polymerization reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203613132U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106543297A (en) * | 2015-09-23 | 2017-03-29 | 中国石油化工股份有限公司 | A kind of polymerization of bimodal polyethylene |
| CN108203319A (en) * | 2018-02-07 | 2018-06-26 | 北京环清环境科技有限公司 | A kind of continous way hydrolysis device |
-
2013
- 2013-12-26 CN CN201320863878.9U patent/CN203613132U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106543297A (en) * | 2015-09-23 | 2017-03-29 | 中国石油化工股份有限公司 | A kind of polymerization of bimodal polyethylene |
| CN106543297B (en) * | 2015-09-23 | 2018-11-02 | 中国石油化工股份有限公司 | A kind of polymerization of bimodal polyethylene |
| CN108203319A (en) * | 2018-02-07 | 2018-06-26 | 北京环清环境科技有限公司 | A kind of continous way hydrolysis device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20141226 |
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| EXPY | Termination of patent right or utility model |