CN203298631U - Three-inlet pipeline arrangement structure of hydrogenation reaction effluent air cooler system - Google Patents
Three-inlet pipeline arrangement structure of hydrogenation reaction effluent air cooler system Download PDFInfo
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- CN203298631U CN203298631U CN2013201998567U CN201320199856U CN203298631U CN 203298631 U CN203298631 U CN 203298631U CN 2013201998567 U CN2013201998567 U CN 2013201998567U CN 201320199856 U CN201320199856 U CN 201320199856U CN 203298631 U CN203298631 U CN 203298631U
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Abstract
The utility model discloses a three-inlet pipeline arrangement structure of a hydrogenation reaction effluent air cooler system. An inlet header pipe is vertically downward communicated with the middle point of a first pipeline, the two ends of the first pipeline are communicated with a second pipeline and a third pipeline respectively, and the plane composed of the second pipeline and the third pipeline is perpendicular to the plane composed of the inlet header pipe and the first pipeline. The outlet end of the second pipeline and the outlet end of the third pipeline are vertically communicated with a fourth pipeline, the two ends and the central point of the fourth pipeline are vertically communicated with a fifth pipeline, a seventh pipeline and a sixth pipeline respectively, moreover, the plane composed of the fifth pipeline, the sixth pipeline and the seventh pipeline is perpendicular to the plane composed of the first pipeline, the second pipeline and the third pipeline, and three connection points between the fourth pipeline, the second pipeline, the third pipeline and the sixth pipeline quarter the fourth pipeline in the length direction. The outlet end of the fifth pipeline, the outlet end of the sixth pipeline and the outlet end of the seventh pipeline are vertically communicated with an air cooler header box and quarter the air cooler header box. The three-inlet pipeline arrangement structure can reduce the phenomena of multiphase-flow erosion corrosion, ammonium salt sedimentation and blocking and under-deposit corrosion caused by uneven distribution of flow parameters of air cooler tube bundles, reduce non-scheduled shutdown accidents, and prolong the safe operation period of the hydrogenation reaction effluent air cooler system.
Description
Technical field
The utility model relates to air-cooler system, relates to specifically a kind of three entrance hydrogenation reaction outflow air-cooler system pipe distribution structures.
Background technology
Petrochemical industry is the pillar industry of China, and hydrocracking is oil refining process important in oil plant, and hydrogenation reaction outflow air-cooler system is one of key equipment in hydrocracking unit.In recent years; aggravation along with the world energy sources crisis; each enterprise of great oil refining constantly towards crude oil in poor quality, device maximize, the future development of operating mode harshnessization; thereby the Flow Corrosion that has caused general hydrogenation reaction outflow air-cooler system lost efficacy; restrain frequently obstruction, perforation, booster etc. and caused a lot of unplanned shutdown accidents, become the outstanding problem of restriction hydrocracking unit long period safe operation.
How to lose efficacy be one of difficult problem of paying close attention in the world to the science Flow Corrosion of controlling hydrogenation reaction outflow air-cooler system always.In the last few years, NACE technical committee, API association etc. have successively carried out a large amount of inefficacy case investigation statistics, and released design, manufacturing, check, operation instruction criterion API 932-A, the API 932-B of hydrogenation REAC system before and after 2004, and recommend the hydrogenation reaction outflow air-cooler system material is upgraded to Incoloy 825 by carbon steel.Under the impact of API 932 standards, the upgrading of tube bank material is selected by domestic and international many petroleum chemical enterprises, to extend the cycle of operation of air-cooler system.Finding after the upgrading material shows: although can improve the anti-Flow Corrosion performance of air cooler tube bundle by upgrade of material, but it involves great expense, and for the operation of whole hydrogenation air-cooler system, effect is also not obvious, and leakage, pipe explosion accident that Some Enterprises carries out restraining after the Bundle material upgrading still have generation.
Hydrogenation air-cooler system flow Flow Field Numerical Analysis result shows: the Flow Corrosion of hydrogenation reaction outflow air-cooler system lost efficacy closely related with the architectural characteristic of importing and exporting pipeline configuration structure, bobbin carriage, the generation of the inhomogeneous and vortex of its inner multiphase flow Flow Field Distribution (phase fraction, flow velocity, flow) is to cause the main cause that partial hydrogenation reaction effluent air cooler tube bank local scour burn into ammonium salt sedimentation stops up and underdeposit corrosion lost efficacy.Therefore, import and export pipeline configuration (pipe is joined) structure for hydrogenation reaction outflow air-cooler system and carry out the key that the balance optimizing design is solution air-cooler system frequent failure problem.
Summary of the invention
The purpose of this utility model is to provide a kind of three entrance hydrogenation reaction outflow air-cooler system pipe distribution structures, solve the hydrogenation air-cooler system frequent failure problem that comprises the fluid Biased flow phenomenon initiation that inlet pipeline system, air cooler bobbin carriage Imbalance in weight cause that exists in background technology, extend the service life of hydrogenation air-cooler system, reduce the generation of unplanned shutdown accident.
In order to achieve the above object, the technical scheme that adopts of the utility model is:
The utility model comprises intake header, the first pipeline, second pipe, the 3rd pipeline, the 4th pipeline, the 5th pipeline, the 6th pipeline, the 7th pipeline, air cooler bobbin carriage, air cooler tube bundle; The intake header entrance point is horizontal direction, the port of export is for vertically downward, reduced pipe through threeway and two ends is communicated with the mid point of the first pipeline, the two ends of the first pipeline are respectively through elbow and second pipe and the 3rd pipeline communication, the port of export of second pipe is through reduced pipe and the 4th pipeline communication at threeway and two ends, the port of export of the 3rd pipeline is through reduced pipe and the 4th pipeline communication at threeway, two ends, and plane and the intake header port of export vertically downward that second pipe and the 3rd pipeline form are perpendicular with the plane of the first pipeline composition; The 4th pipeline center's point is through threeway and the 6th pipeline vertical connection, the 4th pipe ends through elbow respectively with the 5th pipeline, the 7th pipeline vertical connection, and the plane that the 5th pipeline, the 7th pipeline, the 6th pipeline form is perpendicular with the plane of the first pipeline, second pipe, the 3rd pipeline composition, and three interfaces of the 4th pipeline and second pipe, the 3rd pipeline, the 6th pipeline are with the 4th pipeline quartering along its length; The 5th pipeline, the 6th pipeline, the 7th pipe outlet and air cooler bobbin carriage is vertical is connected, three interfaces are with the air cooler bobbin carriage quartering along its length.
Described pipe fitting comprises threeway, reduced pipe and elbow; The reduced pipe of the port of export is the twice of entrance point reduced pipe internal diameter.
Described the 5th pipeline, the 6th pipeline, the 7th pipeline pass through respectively connecting mode and the air cooler bobbin carriage vertical connection of welding or flange.
A described air cooler bobbin carriage side along its length is equipped with the two identical air cooler tube bundles of row's specification, the uniform installation of every emptying cooler tube bank.
The beneficial effect that the utlity model has is:
The three entrance hydrogenation reaction outflow air-cooler system pipe distribution structures that the utility model proposes adopt pipeline antarafacial balanced arrangement mode not at the same level, guarantee the balanced distribution of multiphase flow flow parameter such as flow and phase fraction in entering three pipelines of air cooler bobbin carriage, avoided the pipeline bias current problem that branch causes in same plane.The structure of three entrance air cooler bobbin carriages can effectively be avoided the generation of vortex phenomenon in bobbin carriage, can make three-phase (oil, gas, water) distributed uniform between each air cooler tube bundle of fluid media (medium), increases the uniformity of media flow parameter distribution in tube bank.The utility model can effectively reduce multiphase flow erosion corrosion, ammonium salt sedimentation obstruction and the underdeposit corrosion phenomenon that air cooler tube bundle flow parameter skewness causes, reduce the generation of unplanned shutdown accident, extend the safe operation cycle of hydrogenation reaction outflow air-cooler system.
Description of drawings
Fig. 1 is the structural representation of three entrance hydrogenation reaction effluent air coolers and pipe arrangement.
Fig. 2 is the enlarged diagram (except the 4th, the 5th, the 6th and the 7th pipeline) of A in Fig. 1.
In figure: 1, intake header, the 2, first pipeline, 3, second pipe, the 4, the 3rd pipeline, the 5, the 4th pipeline, the 6, the 5th pipeline, the 7, the 6th pipeline, the 8, the 7th pipeline, 9, air cooler bobbin carriage, 10, air cooler tube bundle.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, be structural representation of the present utility model, comprise intake header 1, the first pipeline 2, second pipe 3, the 3rd pipeline 4, the 4th pipeline 5, the 5th pipeline 6, the 6th pipeline 7, the 7th pipeline 8, air cooler bobbin carriage 9, air cooler tube bundle 10.wherein intake header 1 entrance point is horizontal direction, the port of export is vertical downward direction, intake header 1 horizontal segment is communicated with through pipe fitting (90 ° of elbows) with vertical section, intake header 1 port of export vertically downward is first through threeway, the reduced pipe through two ends is connected with the mid point of the first pipeline 2 again, the two ends of the first pipeline 2 are communicated with second pipe 3 and the 3rd pipeline 4 through pipe fitting (90 ° of elbows) respectively, and wherein intake header 1 pipeline section and the first pipeline 2 plane and the second pipe 3 that form vertically downward is perpendicular with the plane of the 3rd pipeline 4 compositions, second pipe 3 and the 3rd pipeline 4 ports of export are first through threeway, reduced pipe through two ends is connected with the 4th pipeline 5 again, the 4th pipeline 5 two ends are respectively through pipe fitting (90 ° of elbows) and the 5th pipeline 6, the 7th pipeline 8 vertically is connected, the 4th pipeline 5 central points through pipe fitting (threeway) with the 6th pipeline 7 is vertical is connected, and the 5th pipeline 6, the 7th pipeline 8, plane and second pipe 3 that the 6th pipeline 7 forms, the plane that the 3rd pipeline 4 forms is perpendicular, the 4th pipeline 5 and second pipe 3, the 3rd pipeline 4, three interfaces of the 6th pipeline 7 with the 4th pipeline 5 along its length direction quartering, the port of export of the 5th pipeline 6, the 6th pipeline 7, the 7th pipeline 8 is connected with air cooler bobbin carriage 9 is vertical by welding or the form of flange, and three interfaces with air cooler bobbin carriage 9 along its length direction quartering, air cooler bobbin carriage 9 is equipped with two identical air cooler tube bundle 10 and the uniform installations of row's specification along a side of its length direction, the needs of every emptying cooler tube bank quantity and specification depending on technique heat exchange, be set to 40～50 usually, tube bank internal diameter 19 mm, wall thickness 3 mm, length 5 ~ 10 m.
As shown in Figure 2, be the enlarged drawing of A in the utility model structural representation Fig. 1.Wherein intake header 1 port of export vertically downward is communicated with the first pipeline 2 through threeway B, reduced pipe C respectively, the first pipeline 2 is communicated with second pipe 3, the 3rd pipeline 4 respectively through elbow D again, and the diameter (internal diameter) that reduced pipe C is connected with threeway B is 2 times of the diameter (internal diameter) that is connected with the first pipeline 2.Similarly, second pipe 3, the 3rd pipeline 4 pass through at first process threeway, are communicated with the 4th pipeline 5 through reduced pipe, and the internal diameter of the 4th pipeline 5 is 1/2 of second pipe 3 and the 3rd pipeline 4 internal diameters; The 4th pipeline 5 central points are through threeway and the 6th pipeline 7 vertical connections, and the 4th pipeline 5 is identical with the 6th pipeline 7 internal diameters.
The utility model specific works process:
the product of hydrogenation reaction is oil, gas, the multi-phase mixture that water forms, usually be referred to as hydrogenation reaction effluent, oil, gas, the multiphase flow medium of water three phase compositions enters pipe-line system through intake header 1 import, the multiphase flow medium is divided into two and flow into the first pipeline 2 imports through intake header 1, the multiphase flow medium enters into second pipe 3 and the 3rd pipeline 4 imports through two outlets of the first pipeline 2 again, the multiphase flow medium enters into the 4th pipeline 5 imports through second pipe 3 and the 3rd pipeline 4 outlets again, the multiphase flow medium is divided into three through the 4th pipeline 5 one again and flows into respectively the 5th pipeline 6, the 6th pipeline 7, the 7th pipeline 8, flow into again air cooler bobbin carriage 9, the cooling procedure of reaction effluent is completed in the outside that final inflow two rows are arranged in parallel with the air cooler tube bundle 10 of finned tube, reach the needed chilling temperature of technique.
The above-mentioned specific embodiment is used for the utility model of explaining, rather than the utility model is limited, and in the protection domain of claim of the present utility model, any modification that the utility model is made all will fall into protection domain of the present utility model.
Claims (4)
1. an entrance hydrogenation reaction outflow air-cooler system pipe distribution structure, is characterized in that: comprise intake header (1), the first pipeline (2), second pipe (3), the 3rd pipeline (4), the 4th pipeline (5), the 5th pipeline (6), the 6th pipeline (7), the 7th pipeline (8), air cooler bobbin carriage (9), air cooler tube bundle (10), intake header (1) entrance point is horizontal direction, the port of export is for vertically downward, reduced pipe through threeway and two ends is communicated with the mid point of the first pipeline (2), the two ends of the first pipeline (2) are communicated with second pipe (3) and the 3rd pipeline (4) through elbow respectively, the port of export of second pipe (3) is communicated with the 4th pipeline (5) through the reduced pipe at threeway and two ends, the port of export of the 3rd pipeline (4) is through threeway, the reduced pipe at two ends is communicated with the 4th pipeline (5), and the plane that second pipe (3) and the 3rd pipeline (4) form and intake header (1) port of export vertically downward is perpendicular with the plane of the first pipeline (2) composition, the 4th pipeline (5) central point is through threeway and the 6th pipeline (7) vertical connection, the 4th pipeline (5) two ends through elbow respectively with the 5th pipeline (6), the 7th pipeline (8) vertical connection, and the plane that the 5th pipeline (6), the 7th pipeline (8), the 6th pipeline (7) form is perpendicular with the plane that the first pipeline (2), second pipe (3), the 3rd pipeline (4) form, and three interfaces of the 4th pipeline (5) and second pipe (3), the 3rd pipeline (4), the 6th pipeline (7) are with the 4th pipeline (5) quartering along its length, the 5th pipeline (6), the 6th pipeline (7), the 7th pipeline (8) port of export and vertical being connected of air cooler bobbin carriage (9), three interfaces are with air cooler bobbin carriage (9) quartering along its length.
2. a kind of three entrance hydrogenation reaction outflow air-cooler system pipe distribution structures according to claim 1, it is characterized in that: the reduced pipe of the port of export is the twice of entrance point reduced pipe internal diameter.
3. a kind of three entrance hydrogenation reaction outflow air-cooler system pipe distribution structures according to claim 1 is characterized in that: described the 5th pipeline (6), the 6th pipeline (7), the 7th pipeline (8) be connecting mode and air cooler bobbin carriage (9) vertical connection by welding or flange respectively.
4. a kind of three entrance hydrogenation reaction outflow air-cooler system pipe distribution structures according to claim 1, it is characterized in that: described air cooler bobbin carriage (a 9) side along its length is equipped with the two identical air cooler tube bundles (10) of row's specification, the uniform installation of every emptying cooler tube bank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201998567U CN203298631U (en) | 2013-04-19 | 2013-04-19 | Three-inlet pipeline arrangement structure of hydrogenation reaction effluent air cooler system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201998567U CN203298631U (en) | 2013-04-19 | 2013-04-19 | Three-inlet pipeline arrangement structure of hydrogenation reaction effluent air cooler system |
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| CN203298631U true CN203298631U (en) | 2013-11-20 |
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|---|---|---|---|
| CN2013201998567U Withdrawn - After Issue CN203298631U (en) | 2013-04-19 | 2013-04-19 | Three-inlet pipeline arrangement structure of hydrogenation reaction effluent air cooler system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245222A (en) * | 2013-04-19 | 2013-08-14 | 浙江理工大学 | Pipeline configuration structure of triple-inlet air cooler system for hydrogenation reaction effluents |
| CN104236363A (en) * | 2014-09-30 | 2014-12-24 | 洛阳瑞泽石化工程有限公司 | Air cooler inlet pipeline structure |
| CN112524990A (en) * | 2020-11-12 | 2021-03-19 | 绍兴职业技术学院 | Corrosion-resistant protection structure and protection method for air cooler of overhead system |
-
2013
- 2013-04-19 CN CN2013201998567U patent/CN203298631U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245222A (en) * | 2013-04-19 | 2013-08-14 | 浙江理工大学 | Pipeline configuration structure of triple-inlet air cooler system for hydrogenation reaction effluents |
| CN103245222B (en) * | 2013-04-19 | 2015-02-25 | 浙江理工大学 | Pipeline configuration structure of triple-inlet air cooler system for hydrogenation reaction effluents |
| CN104236363A (en) * | 2014-09-30 | 2014-12-24 | 洛阳瑞泽石化工程有限公司 | Air cooler inlet pipeline structure |
| CN104236363B (en) * | 2014-09-30 | 2016-03-23 | 洛阳瑞泽石化工程有限公司 | Air cooler inlet piping structure |
| CN112524990A (en) * | 2020-11-12 | 2021-03-19 | 绍兴职业技术学院 | Corrosion-resistant protection structure and protection method for air cooler of overhead system |
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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: 20131120 Effective date of abandoning: 20150225 |
|
| RGAV | Abandon patent right to avoid regrant |