CN103252105B - Methyl alcohol pressure reducing and distilling device - Google Patents
Methyl alcohol pressure reducing and distilling device Download PDFInfo
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- CN103252105B CN103252105B CN201310207221.1A CN201310207221A CN103252105B CN 103252105 B CN103252105 B CN 103252105B CN 201310207221 A CN201310207221 A CN 201310207221A CN 103252105 B CN103252105 B CN 103252105B
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Abstract
The invention belongs to the field of chemical engineering equipment, and in particular relates to a methyl alcohol pressure reducing and distilling device which comprises a distilling tower, a condenser and a compression-type heat pump, wherein a methyl alcohol inlet is formed in one side of the lower part of the distilling tower; the bottom of a condensation tower is provided with a methyl alcohol outlet; one side of the upper part of the distilling tower and the bottom of the compression-type heat pump are connected and communicated through a hot water pipe; one side of the lower part of the distilling tower and the top of the compression-type heat pump are connected and communicated through a temperature reducing water pipe; the top of the distilling tower and the top of the condenser are connected and communicated through a methyl alcohol steam pipe; one side of the upper part of the distilling tower and one side of the lower part of the condenser are connected and communicated through a back flow pipe; one side of the lower part of the condenser and the top of the compression-type heat pump are connected and communicated through a condensation water pipe; and one side of the upper part of the condenser and one side of the compression-type heat pump are connected and communicated through a cold water pipe. The methyl alcohol pressure reducing and distilling device provided by the invention does not need external heat sources and an ice machine, is reasonable in structure design, saves energy sources, lowers the cost, and improves the efficiency.
Description
Technical field
The invention belongs to field of chemical equipment, be specifically related to a kind of methyl alcohol vacuum distillation apparatus.
Background technology
Methyl alcohol is colourless, transparent, inflammable, poisonous, is a kind of important fourth raw material and high-grade fuel of organising.The purposes of industrial methanol is very extensive, and except can making many organic good solvents, being mainly used in the industrial production such as synthetic fibers, formaldehyde, plastics, medicine, agricultural chemicals, dyestuff, synthetic protein, is a kind of basic Organic Chemicals.In methanol-fueled CLC course of reaction, owing to there is side reaction, contain the impurity such as Organic Alcohol, ether of a large amount of moisture and trace, be commonly called as crude carbinol in the product therefore prepared, crude carbinol also needs to remove impurity by further purifying just can obtain refined methanol.So methyl alcohol still-process is an important technological process.
Crude carbinol is delivered to destilling tower by existing methyl alcohol distilling apparatus, adopt the Steam Heating of boiler, after heating, the temperature lowering water of cooling is drained, draw methanol gas from tower top, after condenser cooling, obtain refined methanol, in condenser, cooling medium adopts the brine ice of ice maker, in whole process, need outside help steam, condenser of destilling tower needs ice maker to carry brine ice, not only power consumption is large, also add equipment cost, causes waste.
Summary of the invention
The object of this invention is to provide a kind of methyl alcohol vacuum distillation apparatus, without the need to external heat source and ice maker, reasonable in design, has saved the energy, has reduced cost, improve efficiency.
Methyl alcohol vacuum distillation apparatus of the present invention, comprises destilling tower, condenser and compression heat pump, and side, destilling tower bottom arranges methyl alcohol import, arranges methanol outlet bottom condensing tower; Side, destilling tower top is communicated with being connected by hot-water line bottom compression heat pump, side, destilling tower bottom and compression heat pump top are connected by temperature drop pipe and communicate, destilling tower top and condenser overhead are connected by methanol vapor pipe and communicate, side, destilling tower top and condenser side are connected by return duct and communicate, the top of condenser side and compression heat pump is connected by condensate pipe and communicates, and the side of side, condenser top and compression heat pump is connected by cold water pipe and communicates.
During use, crude carbinol enters destilling tower by methyl alcohol import, and the methanol vapor after distillation enters condenser by methanol vapor pipe, and the methanol liquid after condenser condenses is flowed out by methanol outlet.Methanol vapor phegma is within the condenser got back to destilling tower by return duct and is further distilled, destilling tower hot water heating, required hot water is produced by compression heat pump and is entered destilling tower through hot-water line, hot water temperature is at 65-70 DEG C, hot water turns back in compression heat pump by temperature drop pipe after destilling tower cooling, and the temperature lowering water returned is at about 57 DEG C.Cold water needed for condenser is produced by compression heat pump and is entered condenser through cold water pipe, and cold water temperature, at about 10 DEG C, turns back in compression heat pump by condensate pipe after condenser condenses, and the condensate temperature returned is at about 15 DEG C.Compression heat pump rely on high-order drive can, make heat flow to high-order thermal source from low level heat energy, take away from condenser condensed water heat out, obtain cold water and enter condenser condenses again; Heat is passed to temperature lowering water out after destilling tower cooling, the hot water obtained after intensification enters destilling tower again.
In sum, the present invention has the following advantages:
This methyl alcohol vacuum distillation apparatus, without the need to external heat source and ice maker, reasonable in design, has saved the energy, has reduced cost, improve efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-methanol vapor pipe, 2-condenser, 3-cold water pipe, 4-methanol outlet, 5-condensate pipe, 6-compression heat pump, 7-temperature drop pipe, 8-hot-water line, the import of 9-methyl alcohol, 10-destilling tower, 11-return duct.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment
As shown in Figure 1, comprise destilling tower 10, condenser 2 and compression heat pump 6, side, destilling tower 10 bottom arranges methyl alcohol import 9, arranges methanol outlet 4 bottom condensing tower 2; Side, destilling tower 10 top is communicated with being connected by hot-water line 8 bottom compression heat pump 6, side, destilling tower 10 bottom and compression heat pump 6 top are connected by temperature drop pipe 7 and communicate, destilling tower 10 top and condenser 2 top are connected by methanol vapor pipe 1 and communicate, side, destilling tower 10 top and side, condenser 2 bottom are connected by return duct 11 and communicate, the top of side, condenser 2 bottom and compression heat pump 6 is connected by condensate pipe 5 and communicates, and the side of side, condenser 2 top and compression heat pump 6 is connected by cold water pipe 3 and communicates.
During use, crude carbinol enters destilling tower 10 by methyl alcohol import 4, and the methanol vapor after distillation enters condenser 2 by methanol vapor pipe 1, is flowed out by methanol outlet 4 through the condensed methanol liquid of condenser 2.The phegma of methanol vapor in condenser 2 is got back to destilling tower 10 by return duct 11 and is further distilled, destilling tower 10 hot water heating, required hot water is produced by compression heat pump 6 and is entered destilling tower 10 through hot-water line 8, hot water temperature is at 65-70 DEG C, hot water is turned back in compression type heat 6 pump by temperature drop pipe 7 after destilling tower 10 is lowered the temperature, and the temperature lowering water returned is at about 57 DEG C.Cold water needed for condenser 2 is produced by compression heat pump 6 and is entered condenser 2 through cold water pipe 3, and cold water temperature is at about 10 DEG C, and turned back in compression heat pump 6 by condensate pipe 5 after condenser 2 condensation, the condensate temperature returned is at about 15 DEG C.Compression heat pump 6 rely on high-order drive can, make heat flow to high-order thermal source from low level heat energy, take away from condenser 2 condensed water heat out, obtain cold water and enter condenser 2 condensation again; Heat is passed to temperature lowering water out after lowering the temperature from destilling tower 10, the hot water obtained after intensification enters destilling tower 10 again.
Claims (1)
1. a methyl alcohol vacuum distillation apparatus, is characterized in that: comprise destilling tower (10), condenser (2) and compression heat pump (6), destilling tower (10) side, bottom arranges methyl alcohol import (9), and condenser (2) bottom arranges methanol outlet (4), destilling tower (10) side, top and compression heat pump (6) bottom are connected are communicated by hot-water lines (8), destilling tower (10) side, bottom and compression heat pump (6) top are connected by temperature drop pipe (7) and communicate, destilling tower (10) top and condenser (2) top are connected by methanol vapor pipe (1) and communicate, destilling tower (10) side, top and condenser (2) side, bottom are connected by return duct (11) and communicate, the top of condenser (2) side, bottom and compression heat pump (6) is connected by condensate pipe (5) and communicates, the side of condenser (2) side, top and compression heat pump (6) is connected by cold water pipe (3) and communicates.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310207221.1A CN103252105B (en) | 2013-05-29 | 2013-05-29 | Methyl alcohol pressure reducing and distilling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310207221.1A CN103252105B (en) | 2013-05-29 | 2013-05-29 | Methyl alcohol pressure reducing and distilling device |
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| CN103252105A CN103252105A (en) | 2013-08-21 |
| CN103252105B true CN103252105B (en) | 2015-03-04 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310682A (en) * | 2015-06-23 | 2017-01-11 | 施丽菊 | High-temperature organic liquid energy-saving purification system |
| CN106281824A (en) * | 2016-08-09 | 2017-01-04 | 单春会 | A kind of red wine distilling apparatus |
| EA202190767A1 (en) | 2018-09-13 | 2021-06-11 | Хальдор Топсёэ А/С | METHOD FOR PRODUCING METHANOL |
| CN110960880A (en) * | 2019-12-17 | 2020-04-07 | 郑州超之肽生物技术有限公司 | Method for purifying volatile chemical organic compounds |
| CN112169364B (en) * | 2020-09-29 | 2021-12-24 | 江苏博颂化工科技有限公司 | Fractionating tower heat pump system adopting external circulating working medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202237308U (en) * | 2011-09-16 | 2012-05-30 | 徐建涛 | Rectifying device for aqueous solutions of methanol and ethanol |
| CN203253184U (en) * | 2013-05-29 | 2013-10-30 | 山东道先为能源科技有限公司 | Reduced pressure distillation apparatus of methanol |
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| US8182654B2 (en) * | 2008-10-27 | 2012-05-22 | Uop Llc | Heat pump for high purity bottom product |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202237308U (en) * | 2011-09-16 | 2012-05-30 | 徐建涛 | Rectifying device for aqueous solutions of methanol and ethanol |
| CN203253184U (en) * | 2013-05-29 | 2013-10-30 | 山东道先为能源科技有限公司 | Reduced pressure distillation apparatus of methanol |
Non-Patent Citations (1)
| Title |
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| "热泵蒸馏";A.Meili;《化学工程》;19871231(第5期);第72-73页 * |
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Address after: 255086 Shandong high tech Zone of Zibo Willow Road No. 125 Advanced Ceramics Industrial Park B block 23 layer Applicant after: Shandong Taoforward Energy S & T Limited Address before: 255086 Shandong high tech Zone in Zibo City, Yumin Road north of Willow Road West of vitality Industrial Park 2 Building Room 203 Applicant before: Shandong Taoforward Energy S & T Limited |
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