CN102580339A - Internal reflux rectifying device - Google Patents
Internal reflux rectifying device Download PDFInfo
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- CN102580339A CN102580339A CN2012100703239A CN201210070323A CN102580339A CN 102580339 A CN102580339 A CN 102580339A CN 2012100703239 A CN2012100703239 A CN 2012100703239A CN 201210070323 A CN201210070323 A CN 201210070323A CN 102580339 A CN102580339 A CN 102580339A
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Abstract
The invention relates to an internal reflux rectifying device which comprises a rectifying tower and a condenser. The condenser is arranged above the rectifying tower; a connecting pipeline is arranged between the rectifying tower and the condenser; the connecting pipeline comprises an inclined connecting pipeline; and the extension direction of the inclined connecting pipeline is inclined to the vertical direction. The structure is adopted and the rectifying tower and the condenser are connected by the pipeline with higher rigidity and strength, so that the defects of poor durability and short service life, which are generated when a bellows type expansion joint is adopted, are overcome.
Description
Technical field
The present invention relates to a kind of rectifying device, particularly a kind of interior reverse-flow type rectifying device.
Background technology
Rectifying device refers to the used equipment of distillation operation, mainly comprises rectifying column, condenser and reboiler.
Reflux and two kinds of forms of exteenal reflux in rectifying device generally includes, wherein, interior backflow is meant that material does not leave cat head, directly is back in the destilling tower behind overhead condensation.In the field that high pure electronic grade production of polysilicon, especially trichlorosilane are purified, extensively adopt this interior reverse-flow type rectifying column.
But, because the inner vapour-liquid exchange of rectifying column is violent, the influence of air-flow in the environment in addition, rectifying column is prone to deflect; Simultaneously, because the fluctuation of the temperature difference of rectifying column start-stop tower is bigger, the phenomenon of expanding with heat and contract with cold is obvious, if at the king-post of rectifying column be fixed on and adopt single rigid conduit directly to link to each other between the condenser on the framework, the stress of junction more greatly, damage equipment very easily.
See also Fig. 1, existing structure is between the king-post of rectifying column and condenser, corrugated expansion joint to be set.Because corrugated expansion joint has the cylinder-shaped thin wall wrinkle housing of a plurality of transverse waves, can realize small size stretching, to offset the influence of expanding with heat and contract with cold of king-post self.Simultaneously, corrugated expansion joint can also be to small size bending all around, and to offset in process of production, air-flow is in the influence of all directions in vapour-liquid exchange that tower is inner violent and the environment.
But still there is following weak point in the employing said structure: the poor durability of corrugated expansion joint, service life lack; After bending repeatedly, housing is easy to break, and causes leaking the initiation security incident.
Summary of the invention
The technical problem that the present invention will solve is to overcome the above-mentioned deficiency of prior art, and the interior backflow rectifier unit of a kind of long service life, good endurance is provided.
For solving the problems of the technologies described above, the invention provides following technical scheme:
Backflow rectifier unit in a kind of; Comprise rectifying column and condenser, said condenser is located at the top of rectifying column, is provided with connecting line between said rectifying column and the condenser; Said connecting line comprises oblique connecting line, and the bearing of trend of said oblique connecting line favours vertical direction.
Adopt such structure, utilize the higher pipeline of rigidity and intensity to be connected rectifying column and condenser, overcome the defective that adopts corrugated expansion joint poor durability, service life to lack;
Simultaneously, because the oblique connecting line in the connecting line has the shape that is similar to spring along tiltedly extending in vertical direction; Make it have certain toughness; When king-post expands with heat and contract with cold or internal force and external force effect when down swing taking place,, offset stress through the flexible deformation and the elasticity of connecting line; Thereby avoided the damage of equipment, improved the service life and the durability of device.
The bearing of trend of oblique connecting line, be in the oblique connecting line pipeline axially, also or the roughly path in oblique connecting line, moved of material.
Preferably, said oblique connecting line is helix tube or coiled pipe.The helix tube here is the spiral pipeline of bearing of trend.Beneficial effect with stressed good, long service life; Coiled pipe is the circuitous pipeline that spirals of bearing of trend.Beneficial effect with stressed good, long service life.
Preferably, the bearing of trend of said oblique connecting line is broken line shape.
Preferably, said oblique connecting line comprises several tube connectors and elbow, and said adjacent two tube connectors connect through elbow.Oblique connecting line is assembled by tube connector and elbow successively; Adopt such structure, can adjust the quantity and the angle of oblique connecting line, use the bigger toughness that tube connector had as much as possible to offset most of external force according to the situation of rectifying column height and local variations in flow.
Simultaneously; Because elbow and tube connector are all selected according to the rectifying column working pressure class, wall thickness all is far longer than corrugated expansion joint, therefore; Even repeatedly extend, compress or crooked situation under also be difficult for run-down; Prevent the generation of security incident, guaranteed the permanent operation of rectifying column, make production process more stable.
Preferably, the some tube connectors in the said oblique connecting line join end to end, and said oblique connecting line is polygon-shaped in the projection of horizontal plane.
Need to prove, oblique here connecting line the projection of horizontal plane by some tube connectors, and be projected in the horizontal plane together in order to the elbow of assembling tube connector and form;
Oblique connecting line roughly is polygon-shaped in the projection of horizontal plane; And not only be confined to the polygon of oblique connecting line in the sealing of the airtight formation of the projection of horizontal plane, also comprise that oblique connecting line is in non-airtight or all the other variations of the projection of horizontal plane but the polygonal structure that levels off to; Adopt such structure, oblique connecting line has higher structural stability.Simultaneously, it is polygon-shaped that tube connector and elbow surround, and has stronger flexibility, can well eliminate rectifying column vertically on expand with heat and contract with cold and swing transversely.
Preferably, the tube connector in the said oblique connecting line joins end to end successively, and said oblique connecting line is triangular in shape in the projection of horizontal plane.Adopt such structure, have stronger flexibility and structural stability, can well eliminate rectifying column vertically on expand with heat and contract with cold and swing transversely.
Preferably, said tube connector is straight tube.
Need to prove that the pipeline of tube connector self needn't have flexible fully, but utilize tube connector to form a structure that is similar to spring,, make it to possess certain retractility through such structure.
Preferably, said oblique connecting line comprises four end to end successively tube connectors, and said elbow is 90 ° of elbows, and said oblique connecting line is rectangular in the projection of horizontal plane; Adopt such structure, oblique connecting line has higher structural stability.Simultaneously, the quadrangle that tube connector and elbow surround has stronger flexibility, can well eliminate rectifying column vertically on expand with heat and contract with cold and swing transversely.
Need to prove, oblique here connecting line the projection of horizontal plane by four tube connectors, and be projected in the horizontal plane together in order to the elbow of assembling tube connector and form; Oblique connecting line is roughly rectangular in the projection of horizontal plane; And not only be confined to the rectangle of oblique connecting line in the sealing of the airtight formation of the projection of horizontal plane; Also comprise oblique connecting line in the projection of horizontal plane non-airtight or slightly variation but the structure of rectangle of leveling off to, like: the rectangle of misalignment, leave the rectangle of opening etc.
Preferably, said tube connector all favours horizontal plane, and the head of said each tube connector all is higher than afterbody.Adopt such structure,, condensed liquid can be got back in the tower of rectifying column smoothly because tube connector all has certain gradient.
Need to prove that, the head of tube connector and afterbody are respectively the both ends of tube connector here.
Preferably, the axis of said tube connector and the angle between the horizontal plane are more than or equal to 3 °.Adopt such structure, guaranteed that further condensed liquid can get back in the tower of rectifying column smoothly.
Preferably, the quantity of said elbow is more than or equal to six.
Preferably, said connecting line comprises first tube connector and second tube connector, and said first tube connector is along vertically linking to each other with rectifying column, and said second tube connector is along vertically linking to each other with condenser.
Preferably, be respectively arranged with first elbow, second elbow on said first tube connector and second tube connector, the two ends of said oblique connecting line are connected with second elbow with first elbow respectively.Adopt such structure,, make to have bigger oblique angle between oblique connecting line and the vertical direction, in order to bear bigger transverse component owing to adopt first elbow, second elbow to the connection that commutates of oblique connecting line.
Preferably, said first tube connector and second tube connector all vertically are provided with.
Preferably, said first elbow, second elbow are 90 ° of elbows.Adopt such structure, when having bigger oblique angle between oblique connecting line and the vertical direction, elbow is standard component, is easy to obtain, with low cost.
Compared with prior art, the invention has the beneficial effects as follows: utilize the higher pipeline of rigidity and intensity to be connected rectifying column and condenser, overcome the defective that adopts corrugated expansion joint poor durability, service life to lack; Simultaneously, because the oblique connecting line in the connecting line has the shape that is similar to spring along tiltedly extending in vertical direction; Make it have certain toughness; When king-post expands with heat and contract with cold or internal force and external force effect when down swing taking place,, offset stress through the flexible deformation and the elasticity of connecting line; Thereby avoided the damage of equipment, improved the service life and the durability of device.
Description of drawings
Fig. 1 is the structural representation of rectifying device in the prior art;
Fig. 2 is the structural representation of backflow rectifying device in the present invention;
Fig. 3 is the perspective view of oblique connecting line in the backflow rectifying device in the present invention;
Fig. 4 is another perspective view of oblique connecting line in the backflow rectifying device in the present invention;
Fig. 5 is the side view of oblique connecting line in the backflow rectifying device in the present invention;
Fig. 6 is the pipeline sketch map of backflow rectifying device in the present invention.
Mark among the figure: rectifying column-1; Condenser-2; Connecting line-3; First tube connector-31a; Second tube connector-31b; Oblique connecting line-4; Tube connector-41; Elbow-5; First elbow-5a; Second elbow-5b.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is further described.
Embodiment of the present invention is not limited to following examples, and the various variations of under the prerequisite that does not break away from aim of the present invention, making all belong within protection scope of the present invention.
As shown in Figure 2; The backflow rectifier unit comprises rectifying column 1 and condenser 2 in the present embodiment; Condenser 2 is located at the top of rectifying column 1, is provided with connecting line 3 between rectifying column 1 and the condenser 2, considers the thermal coefficient of expansion of rectifying column 1 in the vertical direction and along the swing that favours on other directions of vertical direction; In connecting line 3, include oblique connecting line 4, the bearing of trend of oblique connecting line 4 favours vertical direction.
Flexible, the elasticity of flexure of utilizing oblique connecting line 4 to be had; Eliminate expanding with heat and contract with cold and swinging of rectifying column 1; Thoroughly replace corrugated expansion joint; Exist through easy run-down weakness after repeatedly elongation, compression or the bending thereby overcome corrugated expansion joint self, prevent the generation of security incident, steady production.
In the backflow rectifier unit, oblique connecting line 4 is a coiled pipe in the present embodiment, and promptly integral body is dish snake shape, and the top of oblique connecting line 4 is connected with condenser 2, and the bottom of oblique connecting line 4 is connected with rectifying column 1.
Because the bearing of trend of the oblique connecting line 4 of dish snake shape favours vertical direction; Circumferentially have certain ductility and telescopic resilience; Therefore can bear because of expanding with heat and contract with cold or swing stress that bring, non-vertical direction, and stablize with condenser 2 and rectifying column 1 and to be connected.
All the other structures see also embodiment 1.
Here, oblique connecting line 4 can also be and similar spiral shell taper or all the other similar structures of dish snake shape, just repeat no more at this.
Like Fig. 2, shown in Figure 6, in the backflow rectifier unit, oblique connecting line 4 comprises several tube connectors 41 and elbow 5 in the present embodiment; Per two adjacent tube connectors 41 connect through elbow 5; Here, tube connector 41 is straight tube, and tube connector 41 be telescoping tube, can be along its axial stretching, extension.The tube connector 41 that is positioned at oblique connecting line 4 initial and end two ends is connected with condenser 2 and rectifying column 1.
Adopt the combined mode of straight tube and elbow 5, mainly through straight tube along its axial extension, flexible, service life is higher, and passes through the elbow 5 of different angles, makes that the shape of oblique connecting line 4 and attitude are adjustable, makes device possess higher stability.
All the other structures see also embodiment 1.
Like Fig. 2, shown in Figure 6; In the interior backflow rectifier unit of present embodiment; Several tube connectors 41 in the oblique connecting line 4 join end to end, and are strip after tube connector 41 combinations of many fixed length, and the oblique connecting line 4 after the combination is polygon-shaped in the projection of horizontal plane; It is corresponding with the tube connector 41 of its approximate vertical to make that oblique connecting line 4 all has in all directions of horizontal plane, and flexible and extend along the axial realization of this straight tube.
In this embodiment, oblique connecting line 4 the projection of horizontal plane can right and wrong airtight or slightly change but level off to polygonal structure.
It is also to have better structural stability that oblique connecting line 4 is polygon-shaped in the projection of horizontal plane.
All the other structures see also embodiment 3.
To shown in Figure 6, in the backflow rectifier unit, oblique connecting line 4 comprises four end to end successively tube connectors 41 in the present embodiment like Fig. 2, connects through 90 ° of elbows 5 between two adjacent tube connectors 41, and oblique connecting line 4 is rectangular in the projection of horizontal plane.
Wherein, the structure of oblique connecting line 4 sees also Fig. 3 to Fig. 5, and each tube connector 41 all favours horizontal plane; The head of each tube connector 41 all is higher than afterbody; Make oblique connecting line 4 reduce gradually to the tail end height from the head, form certain gradient, the high position of oblique connecting line 4 links to each other with condenser 2; The low level of oblique connecting line 4 links to each other with rectifying column 1, and the liquid in the condensation process can be flowed in the rectifying column 1 smoothly.
In order to guarantee that further the liquid in the condensation process can flow in the rectifying column 1 smoothly, the axis of tube connector 41 and the angle between the horizontal plane are 3 °.
All the other structures see also embodiment 3.
Embodiment 6
As shown in Figure 6, in the backflow rectifier unit, connecting line 3 also comprises the first tube connector 31a and the second tube connector 31b in the present embodiment; The first tube connector 31a is along vertically linking to each other with rectifying column 1, and the second tube connector 31b is along vertically linking to each other with condenser 2, here; The effect that the first tube connector 31a and the second tube connector 31b are set on connecting line 3 is to be used to peg graft oblique connecting line 4, and, the transverse component that device receives; After oblique connecting line 4 counteractings; Be connected with condenser 2, rectifying column 1 respectively with the second tube connector 31b through the first tube connector 31a again, further reduced the stress of junction, thereby improve service life.
The first tube connector 31a and the second tube connector 31b all vertically are provided with; Be respectively arranged with the first elbow 5a, the second elbow 5b on the first tube connector 31a and the second tube connector 31b; The above-mentioned first elbow 5a, the second elbow 5b are 90 ° of elbows 5, and the two ends of oblique connecting line 4 are connected with the second elbow 5b with the first elbow 5a respectively.
All the other structures see also embodiment 5.
Embodiment 7
In the backflow rectifier unit, oblique connecting line 4 is a helix tube in the present embodiment, i.e. integral body shape in the shape of a spiral, and the top of oblique connecting line 4 is connected with condenser 2, and the bottom of oblique connecting line 4 is connected with rectifying column 1.
Because the bearing of trend of the oblique connecting line 4 of helix tube favours vertical direction; Circumferentially have certain ductility and telescopic resilience; Therefore can bear because of expanding with heat and contract with cold or swing stress that bring, non-vertical direction, and stablize with condenser 2 and rectifying column 1 and to be connected.
All the other structures see also embodiment 1.
Embodiment 8
In the interior backflow rectifier unit of present embodiment; The bearing of trend of oblique connecting line 4 is broken line shape; That is: the connecting portion of oblique connecting line 4 and condenser 2, rectifying column 1 is not on same vertical direction; The top of oblique connecting line 4 is connected with condenser 2, and the bottom of oblique connecting line 4 is connected with rectifying column 1.
Because the bearing of trend of oblique connecting line 4 favours vertical direction, circumferentially has certain ductility and telescopic resilience, therefore can bear because of expanding with heat and contract with cold or swing stress that bring, non-vertical direction, and stablize with condenser 2 and rectifying column 1 and to be connected.
All the other structures see also embodiment 1.
Embodiment 9
Extremely shown in Figure 6 like Fig. 2; In the interior backflow rectifier unit of present embodiment; Oblique connecting line 4 comprises three end to end successively tube connectors 41, connects through 90 ° of elbows 5 between two adjacent tube connectors 41, and oblique connecting line 4 is triangular in shape in the projection of horizontal plane.
Wherein, the structure of oblique connecting line 4 sees also Fig. 3 to Fig. 5, and each tube connector 41 all favours horizontal plane; The head of each tube connector 41 all is higher than afterbody; Make oblique connecting line 4 reduce gradually to the tail end height from the head, form certain gradient, the high position of oblique connecting line 4 links to each other with condenser 2; The low level of oblique connecting line 4 links to each other with rectifying column 1, and the liquid in the condensation process can be flowed in the rectifying column 1 smoothly.
In order to guarantee that further the liquid in the condensation process can flow in the rectifying column 1 smoothly, the axis of tube connector 41 and the angle between the horizontal plane are 3 °.
The quantity of elbow 5 is at least six, arranges that in the space at least two groups are projected as leg-of-mutton oblique connecting line.
All the other structures see also embodiment 3.
Need to prove that elbow described in the present invention 5 not only can adopt 90 ° of elbows 5, also can adjust its angular dimension, be not limited to only adopt 90 ° of elbows 5 by the different demands of angular adjustment.
Combine accompanying drawing that embodiments of the invention are described in detail above; But the present invention is not limited to the foregoing description; In the ken that those of ordinary skills possessed, can also make various variations, these variations all belong within protection scope of the present invention.
Claims (15)
1. rectifier unit refluxes in one kind; Comprise rectifying column and condenser; Said condenser is located at the top of rectifying column; Be provided with connecting line between said rectifying column and the condenser, it is characterized in that: said connecting line comprises oblique connecting line, and the bearing of trend of said oblique connecting line favours vertical direction.
2. backflow rectifier unit in according to claim 1, it is characterized in that: said oblique connecting line is helix tube or coiled pipe.
3. backflow rectifier unit in according to claim 1, it is characterized in that: the bearing of trend of said oblique connecting line is broken line shape.
4. backflow rectifier unit in according to claim 1, it is characterized in that: said oblique connecting line comprises several tube connectors and elbow, said adjacent two tube connectors connect through elbow.
5. backflow rectifier unit in according to claim 4, it is characterized in that: the tube connector in the said oblique connecting line joins end to end successively, and said oblique connecting line is polygon-shaped in the projection of horizontal plane.
6. backflow rectifier unit in according to claim 5, it is characterized in that: the tube connector in the said oblique connecting line joins end to end successively, and said oblique connecting line is triangular in shape in the projection of horizontal plane.
7. backflow rectifier unit in according to claim 4, it is characterized in that: said oblique connecting line comprises four end to end successively tube connectors, and said elbow is 90 ° of elbows, and said oblique connecting line is rectangular in the projection of horizontal plane.
8. backflow rectifier unit in according to claim 7, it is characterized in that: said tube connector is straight tube.
9. backflow rectifier unit in according to claim 8, it is characterized in that: said tube connector all favours horizontal plane, and the head of said each tube connector all is higher than afterbody.
10. backflow rectifier unit in according to claim 9, it is characterized in that: the axis of said tube connector and the angle between the horizontal plane are more than or equal to 3 °.
11. backflow rectifier unit in according to claim 10, it is characterized in that: the quantity of said elbow is more than or equal to six.
12. according to the described interior backflow rectifier unit of arbitrary claim in the claim 1 to 11; It is characterized in that: said connecting line comprises first tube connector and second tube connector; Said first tube connector is along vertically linking to each other with rectifying column, and said second tube connector is along vertically linking to each other with condenser.
13. backflow rectifier unit in according to claim 12, it is characterized in that: be respectively arranged with first elbow, second elbow on said first tube connector and second tube connector, the two ends of said oblique connecting line are connected with second elbow with first elbow respectively.
14. backflow rectifier unit in according to claim 13 is characterized in that: said first tube connector and second tube connector all vertically are provided with.
15. backflow rectifier unit in according to claim 14, it is characterized in that: said first elbow, second elbow are 90 ° of elbows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210070323.9A CN102580339B (en) | 2012-03-16 | 2012-03-16 | Internal reflux rectifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210070323.9A CN102580339B (en) | 2012-03-16 | 2012-03-16 | Internal reflux rectifying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102580339A true CN102580339A (en) | 2012-07-18 |
| CN102580339B CN102580339B (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210070323.9A Expired - Fee Related CN102580339B (en) | 2012-03-16 | 2012-03-16 | Internal reflux rectifying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592659A (en) * | 2018-05-18 | 2018-09-28 | 无锡特莱姆气体设备有限公司 | Dismountable water bath type gasifier |
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| CN201668970U (en) * | 2010-05-27 | 2010-12-15 | 天津市天大北洋化工实验设备有限公司 | Internal reflux device and device thereof |
| CN202020931U (en) * | 2011-02-25 | 2011-11-02 | 东瑞（南通）医药科技有限公司 | Constant-pressure alcohol recycling device |
| CN202460168U (en) * | 2012-03-16 | 2012-10-03 | 四川新光硅业科技有限责任公司 | Internal reflux rectifying device |
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2012
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0295323A1 (en) * | 1985-11-25 | 1988-12-21 | Waagner-Biro Aktiengesellschaft | Process and apparatus for thermal treatment |
| RU2315643C2 (en) * | 2006-01-10 | 2008-01-27 | Владимир Васильевич Комаров | Device for primary distillation of oils |
| CN201244373Y (en) * | 2008-08-21 | 2009-05-27 | 王芳 | Mounting connection structure for rectification column and condenser of distillation equipment |
| CN201384866Y (en) * | 2009-02-10 | 2010-01-20 | 北京极易化工有限公司 | Vertical automatic reflux-withdrawal rectifying device |
| RU2393904C1 (en) * | 2009-03-05 | 2010-07-10 | Государственное образовательное учреждение высшего профессионального образования "Московский государственный текстильный университет имени А.Н. Косыгина" | Rectification plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108592659A (en) * | 2018-05-18 | 2018-09-28 | 无锡特莱姆气体设备有限公司 | Dismountable water bath type gasifier |
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| CN102580339B (en) | 2014-04-09 |
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