CN85100107A - The vacuum distillation plant that vaporization and condensation combines - Google Patents
The vacuum distillation plant that vaporization and condensation combines Download PDFInfo
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- CN85100107A CN85100107A CN 85100107 CN85100107A CN85100107A CN 85100107 A CN85100107 A CN 85100107A CN 85100107 CN85100107 CN 85100107 CN 85100107 A CN85100107 A CN 85100107A CN 85100107 A CN85100107 A CN 85100107A
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Abstract
The vacuum distillation plant that vaporization and condensation combines.The invention belongs to the vacuum distillation plant of the separation purification that is applied to the higher boiling heat-sensitive materials.
The present invention is vaporization member and the condensate component that is provided with baffle plate or dividing plate in the horizontal vacuum destilling tower that vaporization and condensation combines, and with liquid air space zoning, to realize repeatedly part vaporization and condensation, avoids the concentration back mixing.Every meter tower length can reach the separating effect of 8-10 piece theoretical tray, so good separating effect.Solved the contradiction that vacuum (distilling) column separating effect and pressure fall, be various higher alcohols, the separation of higher boiling heat-sensitive materials such as aliphatic acid provides a kind of comparatively desirable high-efficiency vacuum distilling apparatus.
Description
The invention belongs to the vacuum distillation plant of the separation purification that is used for the higher boiling heat-sensitive materials.
The separation of higher boiling heat-sensitive materials is purified, and generally adopts vacuum (distilling) column.In tower, carry out the vapour-liquid contact mass transfer by column plate or filler and reach the component separation.It exists the contradiction that separating effect and pressure fall, and the separating effect that seek out then just needs many numbers of plates or high packing layer, thereby producing big pressure falls, cause that the still temperature rises, so that cause heat sensitive material to decompose or autohemagglutination that this is that production institute is unallowed.In recent years, study various types of column plates or filler, wished to reach the purpose of efficient low-resistance.But because its distillation principle is based on the vapour-liquid contact mass transfer, no matter so how column plate or filler are structurally improved, all the time keep away unavoidable owing to form the vapour phase resistance that the vapour-liquid contact surface is produced, thereby making little progress aspect the vacuum distillation of higher boiling heat-sensitive materials.German hans (Hans) is gone up the nonadiabatic horizontal distillation that proposes at " second Chemical Engineering of Czechoslovakia, chemical industry equipment and automation international conference collection of thesis ", the thermal release principle that has adopted vaporization and condensation to combine, solved the problem that pressure falls theoretically, but be a simple experimental apparatus, because inner condensate component and the vaporization member of device all do not have rational design, the concentration back-mixing of the short circuit of vapour phase and liquid phase inside is more serious, and the separating effect of distillation is still bad.Therefore, this device does not reach the degree of practical application as yet.
Purpose of the present invention and task are: adopt vaporization and condensation principle of combining, design a kind of rational internals that can realize that repeatedly part vaporization combines with condensation, avoid the concentration back-mixing, improve separating effect, purify for the separation of higher boiling heat-sensitive materials, a kind of vacuum distillation plant efficiently is provided.
The present invention is a kind of horizontal destilling tower.By baffle plate and dividing plate are set on vaporization member in the tower and the condensate component, with liquid air space zoning, to realize repeatedly part vaporization and condensation.Fig. 1 is the internal structure schematic diagram of tower, and Fig. 2 arranges schematic diagram for the heating surface overhead gage.It is as follows to specify invention below in conjunction with accompanying drawing: the tower body middle part is provided with charging aperture (1), and raw material is entered in the tower by charging aperture, and the right-hand member of tower is the discharging opening (2) of low boiling product, and left end is the discharging opening (3) of higher boiling product.Vaporization member is a heating interlayer (6), is located at the bottom of tower body.Logical heat medium in the interlayer.Upper surface (heating surface) at interlayer upward is provided with plate washer (8) every a determining deviation, and baffle plate is staggered, and the flow direction of confined liquid is to avoid backmixing of liquid phase.Condensate component is cooling tube (5), is located at the top of tower.Logical cooling medium in the pipe.Cooling tube is provided with dividing plate (9), and its position is corresponding one by one with plate washer (8) on the vaporization member, is arranged above and below, and links with last tower wall or baffle plate respectively, and with vapor phase space zoning (flow region), the flow direction with the control gas prevents the vapour phase short circuit.For strengthening the cooling effect of cooling-part, can be provided with some fins (7) on the cooling tube (5), reflux condenser (4) is used to control backflow volume.In tower, steam runs into the surface of condensate component, produces partial condensation, makes low boiling component raising in the steam; Liquid makes high boiling component enrichment in the liquid phase in the upper surface portion evaporation of vaporization member.Steam moves along direction shown in dotted lines in Figure 1 is S-shaped by dividing plate (9), and liquid flows along direction shown in Fig. 2 solid line is S-shaped through plate washer.In flow process, steam generation partial condensation repeatedly concentrates low boiling component gradually in vapour phase; Liquid produces part vaporization repeatedly, and high boiling component is concentrated in liquid phase gradually, thereby reaches the separation of component.For liquid is moved to higher boiling discharging opening (2) better, tower has 5 °-15 ° inclination.
The vacuum distillation plant that this vaporization and condensation combines, by rational design, under the situation that does not almost have pressure to fall, every meter tower length can reach the separating effect of 8-10 piece theoretical tray.
The vacuum distillation plant that adopts this vaporization and condensation to combine has carried out the separation of vitamin E crude product and has purified.Distilling apparatus is composed in series by two 1 meter long horizontal tower, and the tower internal diameter is 35 millimeters, and per 30 millimeters are provided with a dividing plate on the condenser pipe.The operating pressure of tower is the 0.1-0.3 millimetres of mercury.When the crude product content of vitamin E was 92% left and right sides, the purity of vitamin E product can reach more than 99%, the yield height, and lighter color has realized serialization production.
The vacuum distillation plant that this vaporization and condensation combines has solved the contradiction that vacuum (distilling) column separating effect and pressure fall, for the separation of higher boiling heat-sensitive materials such as various higher alcohols, aliphatic acid provides a kind of comparatively desirable high-efficiency vacuum distilling apparatus.
Claims (3)
1, a kind of higher boiling heat-sensitive materials that is used for that is provided with condensate component and vaporization member separates the horizontal vacuum destilling tower of purifying, and it is characterized in that: condensate component is provided with dividing plate [9], and vaporization member is provided with baffle plate [8].
2, horizontal vacuum destilling tower according to claim 1 is characterized in that: dividing plate (8) and baffle plate (9) are staggered on condensate component and vaporization member respectively, flow so that gas and liquid are S-shaped.
3, according to claim 1,2 described horizontal vacuum destilling towers is characterized in that: condensate component is provided with radiating fin (7), with strengthening heat transfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85100107A CN85100107B (en) | 1985-04-01 | 1985-04-01 | Vacuum distillation apparatus with combined vaporization and condensation phases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85100107A CN85100107B (en) | 1985-04-01 | 1985-04-01 | Vacuum distillation apparatus with combined vaporization and condensation phases |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85100107A true CN85100107A (en) | 1986-07-30 |
| CN85100107B CN85100107B (en) | 1987-01-14 |
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ID=4790890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85100107A Expired CN85100107B (en) | 1985-04-01 | 1985-04-01 | Vacuum distillation apparatus with combined vaporization and condensation phases |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85100107B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103695167A (en) * | 2014-01-07 | 2014-04-02 | 常州市百得来生物科技有限公司 | Purification device and purification method for removing impurities in oil liquids |
| CN108913899A (en) * | 2018-06-11 | 2018-11-30 | 中山大学 | A kind of device recycling metal and energy gas from waste and old solar panels |
-
1985
- 1985-04-01 CN CN85100107A patent/CN85100107B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103695167A (en) * | 2014-01-07 | 2014-04-02 | 常州市百得来生物科技有限公司 | Purification device and purification method for removing impurities in oil liquids |
| CN108913899A (en) * | 2018-06-11 | 2018-11-30 | 中山大学 | A kind of device recycling metal and energy gas from waste and old solar panels |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85100107B (en) | 1987-01-14 |
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