CN203148008U - Heating furnace for aromatic hydrocarbon processed from oil heavy components - Google Patents
Heating furnace for aromatic hydrocarbon processed from oil heavy components Download PDFInfo
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- CN203148008U CN203148008U CN 201220739327 CN201220739327U CN203148008U CN 203148008 U CN203148008 U CN 203148008U CN 201220739327 CN201220739327 CN 201220739327 CN 201220739327 U CN201220739327 U CN 201220739327U CN 203148008 U CN203148008 U CN 203148008U
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Abstract
The utility model discloses a heating furnace for aromatic hydrocarbon processed from oil heavy components. The heating furnace comprises a furnace body, a gas channel and a gas nozzle, wherein a raw material pipe inlet and a steam pipe inlet are formed in the upper end of the furnace body side by side, a raw material pipe outlet is formed in the lower end of the furnace body, and a steam pipe outlet is formed in the middle of the furnace body. The heating furnace provided by the utility model adopts the method of entering the heating process from the convection section and ending the heating process at the radiation section, so that the problem of coking is decreased; and for controlling the heating temperature at the convection section, the controlling of heating temperature in the radiation section is relatively accurate, and coking can be effectively avoided by controlling heating temperature and temperature fluctuation well.
Description
Technical field
The utility model relates to the technical field of heavy component in a kind of petrochemical industry (slurry oil) processing aromatic naphtha heater and heating process, is specifically related to a kind of heating furnace of oil heavy component processing aromatic naphtha.
Background technology
In the general petroleum refining engineering, the heating furnace of raw material heating, usually all be to take to pass through the Convective Heating section by radiation heating Duan Houzai earlier, yet, for heavy component, relatively more responsive to heating, traditional heating process brings pipeline coking even obstruction, can cause ageing equipment to be accelerated, productivity ratio descends, degradation problems under unstable product quality and the heat efficiency.
1, the raw material of processing aromatic naphtha is the finished heavy ends of oil process, its material characteristics viscosity height, and density is big, temperature-sensitive sensitivity height, and process characteristic is the processing temperature height;
2, in the hot procedure of petroleum refining, petroleum component has the conversion of 2 directions, and one is to decompose, and one is condensation, and petroleum fraction is after heating, and is highly condensed to carbonization easily, and in the refining of aromatic naphtha, heating mainly is the control temperature and avoids carbonization; Feedstock oil through 2 bringing-up sections, can be thought a preheating and a heating in stove; Preheating temperature rise within a certain period of time is big, easy green coke, therefore, the control of thermic load must will be got well, and advances from radiant section if technological design is feedstock oil, goes out from convection section, temperature control is poor in the production technology, coking probability height, and this has obtained checking in production practices.
Therefore, at these characteristics, it is effective that the pipe design in the stove has been carried out optimizing and confirming in production practices.
Summary of the invention
The purpose of this utility model is to overcome shortcoming and the prejudice of above-mentioned prior art, and a kind of heating furnace of oil heavy component processing aromatic naphtha is provided.
For achieving the above object, the heating furnace of the designed a kind of oil heavy component processing aromatic naphtha of the utility model comprises body of heater, flue and combustion gas spout; Described body of heater upper end has been arranged side by side mother tube entrance and steam pipe entrance, and described body of heater lower end is provided with the mother tube outlet; Be provided with the steam pipe outlet in the middle of the described body of heater.
Further, be respectively convection section, radiant section and burning zone from top to down in the described body of heater stove.
Again further, mother tube and steam pipe and arrange downwards that along furnace wall rotation described steam pipe outlet is arranged on convection section side by side in described convection section, and mother tube is communicated with the insulation oil guide pipe at convection section.
Again further, described insulation oil guide pipe is arranged on the furnace body outer wall of convection section and radiant section, and the insulation oil guide pipe is communicated with mother tube at radiant section, and mother tube is arranged on radiant section and arranges downwards in the sideway swivel in the furnace wall of the radiant section of body of heater.
Operation principle:
Convection section: feedstock oil and water are heated to a certain degree by certain calculation of Heat Load, and the temperature of water has reached the requirement of going into tower, and feedstock oil does not also have, and therefore need heat again;
Radiant section: the feedstock oil that the process conduit enters heats again according to certain calculation of Heat Load, can reach very accurately into the tower temperature requirement, and temperature fluctuation range is little the crudy height.
Advantage of the present utility model is:
1, the utility model is taked to enter heating process from convection section, finishes from radiant section, can reduce coking problem; The relative convection section of radiant section control heating-up temperature, precisely, control heating-up temperature and temperature fluctuation well, can avoid and reduce coking effectively.
2, the utility model is taked double plate tube side formula at convection section, and convection section design mother tube 1 and steam pipe 2 designs side by side, and by design, reasonable distribution is in the Load Distribution of 2 kinds of media of convection section, thereby has avoided the overheated and generation coking of feedstock oil.
3, to finish the heating back from convection section be the stove outer catheter to entering the conduit that radiant section heats again to the utility model, and by resistant to elevated temperatures insulation material coating, assurance is heated feedstock oil in conduit gateway temperature unanimity, solved the stove inner catheter in the big even overheated coking problem of the temperature difference of crossing over 2 bringing-up sections, meet design calculated value more, guaranteed stability and the product processing quality of technological parameter.
4, the utility model reaches re-set target: (1) suppresses even has eliminated the pipeline coking phenomenon; (2) pressure and the thermic load of superheated steam have been increased; (3) improved the operating safety factor of heating furnace; (4) energy-saving effect is arranged.
Description of drawings
Fig. 1 is system diagram of the present utility model;
Among the figure: 1. body of heater, 11. convection sections, 12. radiant sections, 13. burning zones, 2. flue, 3. combustion gas spout, 4. mother tube, 5. steam pipe, 6. insulation oil guide pipe.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail, so that those skilled in the art understand.
A kind of heating furnace of oil heavy component processing aromatic naphtha comprises body of heater 1, flue 2 and combustion gas spout 3 shown in the figure; Described body of heater 1 upper end has been arranged side by side mother tube 4 entrances and steam pipe 5 entrances, and described body of heater 1 lower end is provided with mother tube 4 outlets; Be provided with steam pipe 5 outlets in the middle of the described body of heater 1.
Be respectively convection section 11, radiant section 12 and burning zone 13 in body of heater 1 stove from top to down.
Insulation oil guide pipe 6 is arranged on the furnace body outer wall of convection section 11 and radiant section 12, and insulation oil guide pipe 6 is communicated with mother tube 4 at radiant section, and mother tube 4 is arranged downwards at radiant section 12 and along the furnace wall rotation.
The course of work:
Steam Heating: water enters furnace chamber internal steam pipe 5 towards steam pipe 5 entrances in the convection section 11, and the heating back exports destilling tower to by 5 outlets of steam pipe on the convection section 11 in stove.
The feedstock oil heating: feedstock oil enters mother tube 4 in the furnace chamber from convection section 11 mother tubes 4 entrances, convection section 11 heating backs are entered the mother tube 4 of radiant section by the insulation oil guide pipe 6 of radiant section 12 by mother tube 4 in the convection section 11 in stove, again in radiant section 12 heating, by mother tube 4 outlet output destilling towers.
Economic benefit shows:
Time between overhauls(TBO): the general stove time between overhauls(TBO) is 2 years, substantially all needs to be serviced and repairs, and our stove is annual to be checked once when having long holidays (produce the intermittent phase, as), 3 years, operating mode is good, without any maintenance.
Maintenance cycle: general problem was finished in a week, and serious problem is for example changed part, repaired inwall heat-insulating material etc., and the time also will be grown, and also will debug 2-3 Zhou Douyou after repairing is finished.The stove of present structure is without any maintenance.Consider the part of maintenance in this engineering design: because the feedstock oil heating tube separates in different bringing-up sections, and problem mainly goes out in high temperature section, change coil pipe and also all do not reduce the service material cost with regard to only not needing with hypomere, also reduced maintenance load and cycle.
Maintenance test convenience: generally speaking, the maintenance test of stove interior conduit after blowing out, be need not the inspection of stove epimere, made things convenient for the maintenance test of stove interior conduit; Traditional then the needs checks the high-temperature region pipeline to the abominable relatively stove top of working environment.
Although above-described embodiment has been made detailed description to the utility model; but it only is the utility model part embodiment; rather than whole embodiment; people can also obtain other embodiment according to present embodiment under without creative prerequisite, these embodiment belong to the utility model protection domain.
Claims (4)
1. the heating furnace of an oil heavy component processing aromatic naphtha comprises body of heater (1), flue (2) and combustion gas spout (3); It is characterized in that: described body of heater (1) upper end has been arranged side by side mother tube (4) entrance and steam pipe (5) entrance, and described body of heater (1) lower end is provided with mother tube (4) outlet; Be provided with steam pipe (5) outlet in the middle of the described body of heater (1).
2. according to the heating furnace of the described oil heavy component processing of claim 1 aromatic naphtha, it is characterized in that: be respectively convection section (11), radiant section (12) and burning zone (13) in described body of heater (1) stove from top to down.
3. process the heating furnace of aromatic naphtha according to the described oil heavy component of claim 2, it is characterized in that: mother tube (4) and steam pipe (5) are side by side in described convection section (11), and along the downward layout of furnace wall rotation, described steam pipe (5) outlet is arranged on convection section (11), and mother tube (4) is communicated with insulation oil guide pipe (6) at convection section (11).
4. process the heating furnace of aromatic naphtha according to the described oil heavy component of claim 3, it is characterized in that: described insulation oil guide pipe (6) is arranged on the furnace body outer wall of convection section (11) and radiant section (12), insulation oil guide pipe (6) is communicated with mother tube (4) at radiant section, and mother tube (4) is arranged on radiant section (12) and arranges downwards in the sideway swivel in the furnace wall of the radiant section (12) of body of heater (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220739327 CN203148008U (en) | 2012-12-28 | 2012-12-28 | Heating furnace for aromatic hydrocarbon processed from oil heavy components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220739327 CN203148008U (en) | 2012-12-28 | 2012-12-28 | Heating furnace for aromatic hydrocarbon processed from oil heavy components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148008U true CN203148008U (en) | 2013-08-21 |
Family
ID=48975525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220739327 Withdrawn - After Issue CN203148008U (en) | 2012-12-28 | 2012-12-28 | Heating furnace for aromatic hydrocarbon processed from oil heavy components |
Country Status (1)
| Country | Link |
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| CN (1) | CN203148008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062888A (en) * | 2012-12-28 | 2013-04-24 | 武汉保华石化新材料开发有限公司 | Heating furnace for processing aromatic hydrocarbon oils from heavy components of petroleum |
-
2012
- 2012-12-28 CN CN 201220739327 patent/CN203148008U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062888A (en) * | 2012-12-28 | 2013-04-24 | 武汉保华石化新材料开发有限公司 | Heating furnace for processing aromatic hydrocarbon oils from heavy components of petroleum |
| CN103062888B (en) * | 2012-12-28 | 2015-01-21 | 武汉保华石化新材料开发股份有限公司 | Heating furnace for processing aromatic hydrocarbon oils from heavy components of petroleum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130821 Effective date of abandoning: 20150121 |
|
| RGAV | Abandon patent right to avoid regrant |