CN204543602U - Residual oil destilling tower is used in crude benzol processing - Google Patents
Residual oil destilling tower is used in crude benzol processing Download PDFInfo
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- CN204543602U CN204543602U CN201520156314.0U CN201520156314U CN204543602U CN 204543602 U CN204543602 U CN 204543602U CN 201520156314 U CN201520156314 U CN 201520156314U CN 204543602 U CN204543602 U CN 204543602U
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- reboiler
- heat
- residual oil
- tower
- tower body
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Abstract
The utility model provides a kind of crude benzol processing Residual oil destilling tower, comprise tower body, be arranged on the gaseous phase outlet on tower body top and be arranged on the reboiler of tower body bottom, it is characterized in that: inside described reboiler, be provided with heat-exchanging tube bundle, described heat-exchanging tube bundle connects heat-exchange unit, described reboiler bottom is provided with one group of liquid phase input pipe, and each described liquid phase input pipe connects Venturi tube.The utility model avoids the reboiler tube bank coking at the bottom of tower, improves the heat transfer efficiency of reboiler, avoids reboiler to restrain blocking.
Description
technical field:
The utility model relates to a kind of crude benzol processing Residual oil destilling tower, belongs to technical field of chemical.
background technology:
Coking crude benzene, mainly containing aromatic hydrocarbon such as benzene,toluene,xylenes, also has the impurity such as some unsaturated compounds, sulfur-containing compound, oxygenatedchemicals and nitrogen compound in addition.Crude benzene refining is exactly take crude benzol as raw material, through methods such as chemistry and physics by above-mentioned Impurity removal, to obtain the high-purity benzene can doing raw material use.
The function of the Residual oil destilling tower of crude benzol processing is the benzene-alkylation compound in order to reclaim as far as possible wherein, as: benzene,toluene,xylene etc., and isolate " light component ".This " light component " is then sent to " evaporimeter " top and refluxes.This Residual oil destilling tower tower bottoms contains a certain amount of coumarone, indenes, naphthalene etc., is the raw material manufacturing coumarone-indene resin.Therefore with pump, this Residual oil is sent to coumarone indene resin production device.Heat at the bottom of Residual oil destilling tower tower, provides by vertical reboiler, take high steam as thermal source.In order to prevent the fouling of polymer in reboiler and deposition, tube bank blocking or heat transfer efficiency is caused to decline, therefore require that reboiler must be in turbulence state in restraining, that the large discharge circulation adopting pump to carry out liquid at the bottom of tower is realized at present, but because pump can produce certain pressure loss in the process of conveying, cause turbulence effects undesirable, still have the phenomenon of tube bank coking.
summary of the invention:
The purpose of this utility model provides a kind of crude benzol processing Residual oil destilling tower for above-mentioned Problems existing, avoids the reboiler tube bank coking at the bottom of tower, improve the heat transfer efficiency of reboiler, avoid reboiler to restrain blocking.
Above-mentioned object is achieved through the following technical solutions:
Residual oil destilling tower is used in crude benzol processing, comprise tower body, be arranged on the gaseous phase outlet on tower body top and be arranged on the reboiler of tower body bottom, heat-exchanging tube bundle is provided with inside described reboiler, described heat-exchanging tube bundle connects heat-exchange unit, described reboiler bottom is provided with one group of liquid phase input pipe, and each described liquid phase input pipe connects Venturi tube.
Described crude benzol processing Residual oil destilling tower, the angle between the setting angle of described Venturi tube and described heat-exchanging tube bundle is 45 °-90 °.
Beneficial effect:
After the utility model adopts such technical scheme, the heat-exchanging tube bundle by Venturi tube liquid phase substance being inputted reboiler is heated, Venturi tube effectively can improve pressure reduction, allows liquid enter tube bank with powerful pressure and speed, avoids coking on heat-exchanging tube bundle.Each Venturi tube of the present utility model is installed with different angles simultaneously, allows liquid flow to heat-exchanging tube bundle from different angles, washes away heat-exchanging tube bundle while heating from multi-angle, it also avoid tube bank coking.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
In figure: 1, tower body, 2, gaseous phase outlet, 3, reboiler, 4, heat-exchanging tube bundle; 5, heat-exchange unit; 6, liquid phase input pipe; 7, Venturi tube.
detailed description of the invention:
Embodiment 1:
As shown in Figure 1: Residual oil destilling tower is used in the crude benzol processing of the present embodiment, comprise tower body 1, be arranged on the gaseous phase outlet 2 on tower body top and be arranged on the reboiler 3 of tower body bottom, heat-exchanging tube bundle 4 is provided with inside described reboiler, described heat-exchanging tube bundle connects heat-exchange unit 5, described reboiler bottom is provided with one group of liquid phase input pipe 6, and each described liquid phase input pipe connects Venturi tube 7.
Residual oil destilling tower is used in crude benzol processing described in the present embodiment, and the angle between the setting angle of described Venturi tube and described heat-exchanging tube bundle is 45 °-90 °.
Technological means disclosed in the utility model scheme is not limited only to the technological means disclosed in above-described embodiment, also comprises and replaces by above technical characteristic is equivalent arbitrarily the technical scheme formed.Unaccomplished matter of the present utility model, belongs to the common practise of those skilled in the art.
Claims (2)
1. Residual oil destilling tower is used in a crude benzol processing, comprise tower body, be arranged on the gaseous phase outlet on tower body top and be arranged on the reboiler of tower body bottom, it is characterized in that: inside described reboiler, be provided with heat-exchanging tube bundle, described heat-exchanging tube bundle connects heat-exchange unit, described reboiler bottom is provided with one group of liquid phase input pipe, and each described liquid phase input pipe connects Venturi tube.
2. crude benzol processing Residual oil destilling tower according to claim 1, is characterized in that: the angle between the setting angle of described Venturi tube and described heat-exchanging tube bundle is 45 °-90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520156314.0U CN204543602U (en) | 2015-03-19 | 2015-03-19 | Residual oil destilling tower is used in crude benzol processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520156314.0U CN204543602U (en) | 2015-03-19 | 2015-03-19 | Residual oil destilling tower is used in crude benzol processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204543602U true CN204543602U (en) | 2015-08-12 |
Family
ID=53818773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520156314.0U Expired - Fee Related CN204543602U (en) | 2015-03-19 | 2015-03-19 | Residual oil destilling tower is used in crude benzol processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204543602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111544907A (en) * | 2020-05-27 | 2020-08-18 | 来剑锋 | Energy-saving reboiler for chemical gas separation |
-
2015
- 2015-03-19 CN CN201520156314.0U patent/CN204543602U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111544907A (en) * | 2020-05-27 | 2020-08-18 | 来剑锋 | Energy-saving reboiler for chemical gas separation |
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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: 20150812 Termination date: 20200319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |