CN201094869Y - Multipurpose internal reflux distillation device - Google Patents
Multipurpose internal reflux distillation device Download PDFInfo
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- CN201094869Y CN201094869Y CNU2007201442048U CN200720144204U CN201094869Y CN 201094869 Y CN201094869 Y CN 201094869Y CN U2007201442048 U CNU2007201442048 U CN U2007201442048U CN 200720144204 U CN200720144204 U CN 200720144204U CN 201094869 Y CN201094869 Y CN 201094869Y
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- liquid collecting
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Abstract
The utility model relates to a rectifying systematic device, in particular to a multi-usage internal-return rectifying device, which mainly resolves the technical problem that the general rectifying tower can only be used for processing one product. The technical proposal of the utility model is that a multi-usage internal-return rectifying device consists of a heat-conducting oilstove, a rectifying tower, a receiving vat and a secondary vacuum pump, wherein, the rectifying tower consists of a column reactor, a tower section, a filling section, a fluid-collection distributor and a condenser which are assembled in turn, wherein, the top of the heat-conducting oilstove is communicated with the upper part of the column reactor, the top of the rectifying tower and the fluid-collection distributor are provided with a drainage tube that is merged after being drained and then is input into the receiving vat A and the receiving vat B, and the secondary vacuum pump is communicated with the top of the receiving vat A and the receiving vat B through the pipeline. The rectifying systematic device can be sued for the organic chemical engineering and can be used for the purification of the small-batch high-additional-value products in the fine chemical industry or used for the recycling of the solvent in the production process.
Description
Technical field:
The utility model relates to a cover distillation system equipment, and backflow rectifier unit in particularly a kind of multipurpose can be used for the organic chemical industry, is used for the purification of fine chemistry industry, small lot, high value added product, or solvent recovery in the production process.
Background technology:
In fine chemistry industry is produced, there are a lot of fluid products will be, remove low boiling and the height impurity that boils by rectifying, thus the purity of raising product.Have more subzero solid product exactly, also will just can reach quality requirement by rectifying as tert-butyl chloro-silicane.But general rectifying device all has the limitation that can only be used for processing a kind of product basically:
(1) equipment of atmospheric distillation can not be done decompression and uses, decompression can not make atmospheric distillation.
(2) adapt to the rectifying column of high boiler material, can not be used for processing lower boiling, otherwise also not all right.
(3) material that can fractionation dissolves each other, but can not immiscible material be arranged the existing material that dissolves each other of fractionation again.
With reference to Fig. 2, general small-sized rectifying column packaging liquid device below condenser, liquid trap is made up of liquid collecting funnel 13 and the take-off pipe 14 that is communicated with funnel bottom, liquid collecting funnel 13 is a zigzag suitable for reading 12, its sectional area suitable for reading can only be 2/3 of a tower, otherwise produce vapour lock, influence the rising of material steam, therefore condensed liquid can only collect 2/3, also have 1/3 to reflux, also have partial reflux to regulate by the accumulator outlet valve, take out and lacked, condensate liquid overflow from the sawtooth grooves of liquid trap top is got off.
The utility model content:
The purpose of this utility model provides the interior backflow rectifier unit of a cover multifunctional and multipurpose, mainly solve the technical problem that general rectifying column can only be used for processing a kind of product, rectifiable multiple product, improve utilization rate of equipment and installations, save equipment investment, accelerate the speed that new product starts again, reduce the low loss of boiling, minimizing is to achieve many things at one stroke to the pollution of environment.
The technical solution of the utility model is: backflow rectifier unit in a kind of multipurpose, form by heat-conducting oil furnace, rectifying column, groove and two-stage vacuum pump, described rectifying column is assembled successively by tower still, tower joint, packing section, liquid collecting distributor, condenser, the heat-conducting oil furnace top is communicated with tower still top, the heat-conducting oil furnace bottom is communicated with tower still bottom by delivery pump, rectifying column top and liquid collecting distributor are equipped with also to flow after drainage tube is drawn and divide two-way to import groove A and groove B respectively again, and two-stage vacuum pump is communicated with by the top of pipeline with groove A and groove B.
Described liquid collecting distributor is made of liquid collecting ring, liquid collecting funnel, downspout, distribution funnel and take-off pipe, the liquid collecting funnel is arranged on liquid collecting ring below, in the liquid collecting funnel downspout is set, downspout stretches out the liquid collecting funnel bottom and is communicated with inverted distribution funnel, and liquid collecting funnel bottom side direction is drawn take-off pipe.
Described condenser is combined by first-stage condenser and secondary condenser, is 2 groups of condenser coils of upper and lower settings, and cooling fluid input port and delivery outlet all are arranged on the condenser coil top.
The beneficial effects of the utility model are:
1, the utility model is by the improvement to liquid trap, and a) condensate liquid of assurance cat head is all collected; B) steam that rises in the tower can rise to overhead condenser by annular space again, and non-resistance; C) increase accumulator, increase the time of staying of condensate liquid, this is removable part azeotropic and immiscible component again.Be controlled at below 5/10000ths as cycloheptanone product requirement water content, but cycloheptanone and water are azeotropic, and it is immiscible, as there not being this device in the interior reflux column is to separate, on the utility model, operate, strengthen capacity of returns when boiling going out to hang down, allow moisture at first separate and enter the low groove that boils, divide water to finish the back and receive and just boil.
2, the utility model passes through the improvement to condenser: a) adopt coil condenser, condensation effect is good, resistance is little, ordinary material steam can be cooled to liquid, be exactly that the lower material of small amount of solid or freezing point also can use, the BSA that produces and the tert-butyl group are then blocked by crystallization after several hours as using pipe bundle condenser, just this phenomenon can not take place as using coil condenser.B) adopt B-grade condensation to be convenient to regulate, save the energy, reduce supplies consumption.C) cooling fluid of general coil condenser all rises from the bottom up, become and flow path direction with the interior gas of tower like this, cooling effect is poor, the utility model cooling fluid enters coil pipe from top, and then go out from top, be that adverse current guarantees to be full of in the pipe cooling fluid again, go out condenser again through after the cold and hot exchange.
Description of drawings:
Fig. 1 is the utility model system equipment flow chart
Among the figure: 1-heat-conducting oil furnace, 2-tower still, 3-tower joint, 4-packing section, 5-liquid collecting distributor, 6-first-stage condenser, 7-secondary condenser, 8-groove A, 9-groove B, 10-two-stage vacuum pump, 11-delivery pump.
Fig. 2 is existing liquid trap structural representation
Among the figure: the 12-zigzag is suitable for reading, 13-liquid collecting funnel, 14-take-off pipe
Fig. 3 is the utility model liquid collecting distributor
Among the figure: 51-liquid collecting ring, 52-liquid collecting funnel, 53-downspout, 54-take-off pipe, 55-distribution funnel
Fig. 4 is the utility model condenser structure schematic diagram
Among the figure: 15-condenser coil, 16-cooling fluid input port, 17-cooling fluid delivery outlet
The specific embodiment:
With reference to Fig. 1: backflow rectifier unit in the multipurpose, form by heat-conducting oil furnace 1, rectifying column, groove 8,9 and two-stage vacuum pump 10, described rectifying column is assembled successively by tower still 2, tower joint 3, packing section 4, liquid collecting distributor 5, condenser, heat-conducting oil furnace 1 top is communicated with tower still 2 tops, heat-conducting oil furnace 1 bottom is communicated with tower still 2 bottoms by delivery pump 11, rectifying column top and liquid collecting distributor 5 are equipped with also to flow after drainage tube is drawn and divide two-way to import groove A8 and groove B9 respectively again, and two-stage vacuum pump 10 is communicated with by the top of pipeline with groove A8 and groove B9.
With reference to Fig. 3, described liquid collecting distributor 5 is made of liquid collecting ring 51, liquid collecting funnel 52, downspout 53, distribution funnel 55 and take-off pipe 54, liquid collecting funnel 52 is arranged on liquid collecting ring 51 belows, downspout 53 is set in the liquid collecting funnel 52, downspout 53 stretches out the liquid collecting funnel bottom and is communicated with inverted distribution funnel 55, and liquid collecting funnel bottom side direction is drawn take-off pipe 54.
With reference to Fig. 1,4, described condenser is combined by first-stage condenser 6 and secondary condenser 7, is 2 groups of condenser coils 15 of upper and lower settings, and cooling fluid input port 16 and cooling fluid delivery outlet 17 all are arranged on condenser coil 15 tops.
Heat-conducting oil furnace is a conventional products, with the heating of the electrical bar of 12 5KW, is divided into 4 groups, and switch is installed respectively, can be according to the needs of material to heat, 60KW all uses, or portion separately on, the also available TCX temperature indicator of oil temperature is controlled automatically;
The tower selected parts are with enamel tower joint, to adapt to slant acidity or meta-alkalescence product;
Inner-tower filling material φ 305 corrugation ceramic filling materials, number of plates height, resistance drop is little, and corrosion resistance is strong, is suitable for the processing of most of materials;
The liquid collecting distributor fuses liquid trap and distributor, and is simple in structure compact again.Be divided into two sections, epimere is the cone ring, and ring cylindrical D1 is connected with the tower body flange, and circle D2 is that gas rises in the ring, the passage that liquid descends, and hypomere is the cone funnel-form, D3 suitable for reading, their relation is D1: D2: D3=1: 0.8: 0.85.The liquid collecting funnel is by valve regulated capacity of returns on the take-off pipe outside the tower, and phegma is all by the middle distribution funnel that connects, and is uniform in packing layer.
All available cycles water or salt solution of two-stage when condenser uses also can one-level recirculated water, and secondary salt solution can be saved cold like this.More than 100 ℃, then one-level recirculated water drops to 50 ℃ to temperature of charge, uses secondary salt water for cooling again, can drop to below 20 ℃, significantly reduces material and is extracted out by vavuum pump as the material boiling point.Simultaneously save the salt water consumption again, and for example the tower still temperature requirement of BSA is controlled at below 70 ℃, and then tower top temperature is at 25 ℃～30 ℃, and at this moment two-stage is all used salt solution, can guarantee the top vacuum outlet temperature below 10 ℃, can reduce the waste that the low material that boils is drawn into vavuum pump.
During design condenser is amplified, tower diameter φ 250, condenser diameter phi 350 so both can increase by two circle coil pipes, increased film-cooled heat 30%, had reduced the flow velocity of gas again, helped cooling, helped gas-liquid separation again, avoided material to be drawn into vavuum pump.
The utility model can carry out the adjusting of normal pressure and rectification under vacuum: normal pressure and decompression are adopted in decision during according to the characteristic rectifying of material, as 123 ℃ of tert-butyl group product boiling points, 70 ℃ at freezing point, this material is passable with normal pressure, as long as operation is AB valve pass, vavuum pump stops, and C emptying valve open has been exactly the normal pressure system.And for example BSA material boiling point is 165 ℃, but surpasses very fast decomposition more than 80 ℃, therefore can only use decompression, and will vacuum be reached below the absolute pressure 5mmHg with the secondary vacuum, and tower still temperature guarantees below 70 ℃.At this moment operation is as long as turn off the C valve, and vavuum pump leaves, and the AB valve is opened, and then can reach the vacuum requirement.The vacuum absolute pressure is low like this, and the boiling point of material is also low, and tower still temperature reaches below 70 ℃, and tower top temperature has guaranteed product yield for 20～25 ℃, has reached the quality of product again.
Claims (3)
1, backflow rectifier unit in a kind of multipurpose, form by heat-conducting oil furnace, rectifying column, groove and two-stage vacuum pump, it is characterized in that described rectifying column is assembled successively by tower still, tower joint, packing section, liquid collecting distributor, condenser, the heat-conducting oil furnace top is communicated with tower still top, the heat-conducting oil furnace bottom is communicated with tower still bottom by delivery pump, rectifying column top and liquid collecting distributor are equipped with also to flow after drainage tube is drawn and divide two-way to import groove A and groove B respectively again, and two-stage vacuum pump is communicated with by the top of pipeline with groove A and groove B.
2, backflow rectifier unit in a kind of multipurpose according to claim 1, it is characterized in that described liquid collecting distributor is made of liquid collecting ring, liquid collecting funnel, downspout, distribution funnel and take-off pipe, the liquid collecting funnel is arranged on liquid collecting ring below, in the liquid collecting funnel downspout is set, downspout stretches out the liquid collecting funnel bottom and is communicated with inverted distribution funnel, and liquid collecting funnel bottom side direction is drawn take-off pipe.
3, backflow rectifier unit in a kind of multipurpose according to claim 1, it is characterized in that described condenser is combined by first-stage condenser and secondary condenser, be 2 groups of condenser coils of upper and lower settings, cooling fluid input port and cooling fluid delivery outlet all are arranged on the condenser coil top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201442048U CN201094869Y (en) | 2007-09-24 | 2007-09-24 | Multipurpose internal reflux distillation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201442048U CN201094869Y (en) | 2007-09-24 | 2007-09-24 | Multipurpose internal reflux distillation device |
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| Publication Number | Publication Date |
|---|---|
| CN201094869Y true CN201094869Y (en) | 2008-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201442048U Expired - Fee Related CN201094869Y (en) | 2007-09-24 | 2007-09-24 | Multipurpose internal reflux distillation device |
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| CN (1) | CN201094869Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143185A (en) * | 2013-03-21 | 2013-06-12 | 山东天一化学股份有限公司 | Diphenylethane rectifying device |
| CN104289005A (en) * | 2013-10-24 | 2015-01-21 | 高邮市助剂厂 | Liquid-sealed distillation equipment |
| CN104368287A (en) * | 2014-11-25 | 2015-02-25 | 江苏凌飞科技股份有限公司 | Polyester production device with constant-temperature conduction oil cooling system |
| CN104784959A (en) * | 2015-04-24 | 2015-07-22 | 上海化工研究院 | System for purifying peach aldehyde through decompressed intermittent side withdrawal and rectification |
| CN104841153A (en) * | 2015-05-28 | 2015-08-19 | 江西永通科技股份有限公司 | P-tert-butyltoluene rectification separation equipment and p-tert-butyltoluene rectification separation process |
| CN108218658A (en) * | 2018-03-20 | 2018-06-29 | 浙江省天正设计工程有限公司 | A kind of integrated acetylene recycle device and recovery process |
-
2007
- 2007-09-24 CN CNU2007201442048U patent/CN201094869Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143185A (en) * | 2013-03-21 | 2013-06-12 | 山东天一化学股份有限公司 | Diphenylethane rectifying device |
| CN104289005A (en) * | 2013-10-24 | 2015-01-21 | 高邮市助剂厂 | Liquid-sealed distillation equipment |
| CN104368287A (en) * | 2014-11-25 | 2015-02-25 | 江苏凌飞科技股份有限公司 | Polyester production device with constant-temperature conduction oil cooling system |
| CN104784959A (en) * | 2015-04-24 | 2015-07-22 | 上海化工研究院 | System for purifying peach aldehyde through decompressed intermittent side withdrawal and rectification |
| CN104841153A (en) * | 2015-05-28 | 2015-08-19 | 江西永通科技股份有限公司 | P-tert-butyltoluene rectification separation equipment and p-tert-butyltoluene rectification separation process |
| CN108218658A (en) * | 2018-03-20 | 2018-06-29 | 浙江省天正设计工程有限公司 | A kind of integrated acetylene recycle device and recovery process |
| CN108218658B (en) * | 2018-03-20 | 2023-12-19 | 浙江省天正设计工程有限公司 | Integrated acetylene recycling device and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multipurpose internal reflux distillation device Effective date of registration: 20100301 Granted publication date: 20080806 Pledgee: Pudong Productivity Promotion Center, Shanghai Pledgor: Shanghai Yimin Chemical Co., Ltd. Registration number: 2010990000712 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080806 Termination date: 20120924 |