CN206881182U - The device of energy-efficient concentrate - Google Patents
The device of energy-efficient concentrate Download PDFInfo
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- CN206881182U CN206881182U CN201720722673.7U CN201720722673U CN206881182U CN 206881182 U CN206881182 U CN 206881182U CN 201720722673 U CN201720722673 U CN 201720722673U CN 206881182 U CN206881182 U CN 206881182U
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- tower
- concentration tower
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- heating device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
A kind of device of energy-efficient concentrate, concentration tower tower reactor thermal source and tower top low-temperature receiver convert by a set of mechanical vapor-compression falling film evaporator to be provided, concentration tower top gaseous phase is compressed by Mechanical Vapor Compression, calorific value grade inputs after improving as concentration tower tower reactor thermal source, tower bottoms inputs tower reactor after being heated in falling film heating device tube side, top gaseous phase is condensed into liquid phase in falling film heating device, a part returns to concentration tower as backflow, a part produces after being exchanged heat as overhead extraction product with charging, compared with traditional rectifying, the heat quality of tower top indirect steam is improved with a small amount of electric energy by vapor recompression, to replace a large amount of live steams of traditional reboiler heating.The heat energy of tower top lime set and bottom of towe discharging is fully recycled, reduces plant energy consumption.Facility compact, floor space is small, operates steadily, and automaticity is high.
Description
Technical field
The utility model is specifically related to technical field of chemical, and in particular to a kind of device of energy-efficient concentrate.
Background technology
Industrial rectifying is a kind of very extensive process for separation and purification of application, and conventional rectification needs will with a large amount of live steams
Rectifying materials at bottom of tower is heated, and be separated material heat and mass on each layer column plate of rectifying column, and heavy constituent is discharged from bottom of towe, light component
Discharged from tower top, then light component is condensed with a large amount of cooling waters and obtains overhead product.But with energy scarcity and become increasingly conspicuous
Environmental protection problem, the rectificating method for developing novel energy-saving environment-friendly is one of focus of this area research.
The content of the invention
It is of the present utility model to provide a kind of device and its N- of energy-efficient concentrate in order to solve the deficiencies in the prior art
The energy-efficient concentrating method of ethyl piperazidine.
The utility model use technical solution be：A kind of device of energy-efficient concentrate, including concentration tower, it is described
The feed end of concentration tower be connected with the tube side of one-level preheater, the tube side of two level preheater, the bottom of described concentration tower in turn
Portion is connected with the tube side and concentration tower lower cylinder of falling film heating device in turn, and vapour pressure is connected with turn at the top of described concentration tower
Contracting machine, the shell side of falling film heating device, concentration tower top cylinder and two level preheater shell side.
Circulating pump is additionally provided between the bottom of described concentration tower and falling film heating device.
The shell side of described falling film heating device is also associated with return tank, the top connection of described return tank and concentration tower.
It is additionally provided between described return tank and the top of concentration tower and concentration tower is delivered into the pressurization of return tank inner condensat liquid
The reflux pump at top.
The bottom of described concentration tower is also connected with the shell side of discharging pump and one-level preheater in turn.
A kind of method of energy-efficient concentrate NEP, comprises the following steps：Thick NEP raw material is through one-level
Preheater and two level preheater are sent into high efficiency structured packing tower after being preheated respectively by concentration tower bottom of towe and tower top discharge product
Separated, light component is discharged by tower top, and heavy constituent is discharged by bottom of towe；Described tower top indirect steam by vapour compression machine,
Temperature and pressure grade heats the materials at bottom of tower in tube side in falling film heating device after improving, meanwhile, it is secondary in the shell side of falling film heating device
Steam is condensed, and is discharged in return tank, and the condensate liquid in return tank is partly refluxed to concentrate column overhead after being pressurizeed by reflux pump,
Discharged after being exchanged heat in two level preheater with charging as overhead product part；Described materials at bottom of tower part is conveyed by circulating pump
Bottom of towe is returned after to Secondary-steam heating of the falling film heating device after pressurized；Part is delivered to one-level preheater with entering by discharging pump
As tower bottom product concentration NEP discharge after material heat exchange.
At 103 ± 1 DEG C, column bottom temperature is controlled at 120 ± 1 DEG C for described concentrate column overhead temperatures control.
Described concentration tower operating reflux ratio is 0.5~1.5.
Described vapour compression machine selects twin-stage Mechanical Vapor Compression, wherein first order compressor by top gaseous phase by
103 DEG C of compressions are warming up to 116 DEG C, and two level is compressed to 129 DEG C by 116 DEG C.
The beneficial effects of the utility model are：The utility model provides the device and its N- second of a kind of energy-efficient concentrate
The energy-efficient concentrating method of base piperazine, concentration tower tower reactor thermal source and tower top low-temperature receiver are by a set of mechanical vapor-compression falling film evaporator
Conversion is provided, and concentration tower top gaseous phase is compressed by Mechanical Vapor Compression, and calorific value grade is used as concentration tower tower reactor thermal source after improving
Input, tower bottoms input tower reactor after being heated in falling film heating device tube side, and top gaseous phase is condensed into liquid phase in falling film heating device,
A part returns to concentration tower as backflow, and a part produces after being exchanged heat as overhead extraction product with charging, and traditional rectifying phase
Than the heat quality of tower top indirect steam being improved with a small amount of electric energy in compression by steam, to replace traditional reboiler to heat
With a large amount of live steams.The heat energy of tower top lime set and bottom of towe discharging is fully recycled, reduces plant energy consumption.Facility compact, account for
Ground area is small, operates steadily, and automaticity is high.
Brief description of the drawings
Fig. 1 is the utility model flow simplified schematic diagram.
Fig. 2 is process flow diagram of the present utility model.
1- concentration towers in figure, 2- one-level preheaters, 3- two level preheaters, 4- falling film heating devices, 5- vapour compression machines, 6- are followed
Ring pump, 7- return tanks, 8- reflux pumps, 9- discharging pumps.
Embodiment
The utility model is further described in conjunction with Fig. 1, Fig. 2, a kind of device of energy-efficient concentrate, including carried
Dense tower 1, the feed end of described concentration tower 1 is connected with the tube side of one-level preheater 2, the tube side of two level preheater 3 in turn, by two
Level preheating, the heat energy of tower top lime set and bottom of towe discharging is fully recycled, reduces plant energy consumption.The bottom of described concentration tower 1
It is connected with the tube side and the lower cylinder of concentration tower 1 of falling film heating device 4 in turn, the described top of concentration tower 1 is connected with steam in turn
Compressor 5, the shell side of falling film heating device 4, the top cylinder of concentration tower 1 and the shell side of two level preheater 3.Described concentration tower 1
Circulating pump 6 is additionally provided between bottom and falling film heating device 4.The shell side of described falling film heating device 4 is also associated with return tank 7, institute
The return tank 7 stated is connected with the top of concentration tower 1.It is additionally provided between described return tank 7 and the top of concentration tower 1 by return tank
The reflux pump 8 at the top of concentration tower 1 is delivered in the pressurization of 7 inner condensat liquids.The bottom of described concentration tower 1 is also connected with discharging pump in turn
9 and the shell side of one-level preheater 2.The tower overhead gas of concentration tower 1 is compressed by Mechanical Vapor Compression 5, and calorific value grade is used as after improving and carried
The dense tower reactor thermal source of tower 1 input, tower bottoms input tower reactor after being heated in the tube side of falling film heating device 4.Compare, pass through with traditional rectifying
Steam is improved the heat quality of tower top indirect steam with a small amount of electric energy in compression, a large amount of new to replace the heating of traditional reboiler to use
Fresh steam, top gaseous phase are condensed into liquid phase in the heat exchange of falling film heating device 4, and a part returns to concentration tower 1 as backflow, and a part is made
Produced after being exchanged heat for overhead extraction product with charging.Compared with traditional rectifying, save the condensation for being largely used to condense top gaseous phase
Water, technique of traditional rectifying by the two heat exchangers completions of overhead condenser and tower reactor reboiler is completed with a falling film heating device 4
Function.
A kind of method of energy-efficient concentrate NEP, comprises the following steps：Thick NEP raw material is through one-level
Preheater 2 and two level preheater 3 are sent into High Efficient Standard Packing after being preheated respectively by the bottom of towe of concentration tower 1 and tower top discharge product
Tower is separated, and light component is discharged by tower top, and heavy constituent is discharged by bottom of towe；Described tower top indirect steam passes through vapour compression machine
5, temperature and pressure grade heats the materials at bottom of tower in tube side in falling film heating device 4 after improving, meanwhile, in the shell side of falling film heating device 4
Indirect steam is condensed, and is discharged in return tank 7, and the condensate liquid in return tank 7 is partly refluxed to concentrate after being pressurizeed by reflux pump 8
The tower top of tower 1, discharged after partly being exchanged heat in two level preheater 3 with charging as overhead product；Described materials at bottom of tower part by
Circulating pump 6 be delivered to falling film heating device 4 it is pressurized after Secondary-steam heating after return to bottom of towe；Part is delivered to by discharging pump 9
One-level preheater 2 as tower bottom product after charging heat exchange with concentrating NEP discharge.
The described tower top temperature of concentration tower 1 is controlled about 103 ± 1 DEG C, and column bottom temperature is controlled about 120 ± 1 DEG C.
The described operating reflux ratio of concentration tower 1 is 0.5~1.5.
Described vapour compression machine 5 from twin-stage Mechanical Vapor Compression 5, wherein first order compressor by top gaseous phase by
103 DEG C of compressions are warming up to 116 DEG C, and two level is compressed to 129 DEG C by 116 DEG C.
Rectifying column described in the utility model loads three-layer efficient structured packing, feeds and enters at the top of second layer filler；
About 103 DEG C, column bottom temperature controls about 120 DEG C rectifying column tower top temperature control, is operated under normal pressure or pressure-fired；Essence
Evaporate tower operating reflux ratio 0.5~1.5.
Tthe utility model system boiling point rises 17 DEG C, and Mechanical Vapor Compression selects twin-stage Mechanical Vapor Compression, wherein the
Top gaseous phase is warming up to 116 DEG C by stage compressor by 103 DEG C of compressions, and two level is compressed to 129 DEG C by 116 DEG C.
Charging NEP concentration about 82% described in the utility model, water concentration about 18%.Discharge tower reactor N- ethyl piperazines
Piperazine concentration is more than 90%, and tower top water concentration is more than 99.5%.
Compared to conventional rectification, the utility model can save 3.35t (steam)/t (charging), and 150t (cooling water)/t (enters
Material), it is consume electric energy 104kw/t (charging) more.
The utility model can be also used for the separation of other organic solvents in addition to it can be used for NEP concentrate
Purification, the operation such as separating-purifying of organic matter.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (5)
1. a kind of device of energy-efficient concentrate, including concentration tower（1）, it is characterised in that described concentration tower（1）Feed end
It is connected with one-level preheater in turn（2）Tube side, two level preheater（3）Tube side, described concentration tower（1）Bottom connect successively
It is connected to falling film heating device（4）Tube side and concentration tower（1）Lower cylinder, described concentration tower（1）Top is connected with steam in turn
Compressor（5）, falling film heating device（4）Shell side, concentration tower（1）Top cylinder and two level preheater（3）Shell side.
2. the device of energy-efficient concentrate according to claim 1, it is characterised in that described concentration tower（1）Bottom
With falling film heating device（4）Between be additionally provided with circulating pump（6）.
3. the device of energy-efficient concentrate according to claim 1, it is characterised in that described falling film heating device（4）'s
Shell side is also associated with return tank（7）, described return tank（7）With concentration tower（1）Top connection.
4. the device of energy-efficient concentrate according to claim 3, it is characterised in that described return tank（7）With concentrate
Tower（1）Top between be additionally provided with return tank（7）Concentration tower is delivered in inner condensat liquid pressurization（1）Top reflux pump（8）.
5. the device of energy-efficient concentrate according to claim 1, it is characterised in that described concentration tower（1）Bottom
Also it is connected with discharging pump in turn（9）With one-level preheater（2）Shell side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720722673.7U CN206881182U (en) | 2017-06-21 | 2017-06-21 | The device of energy-efficient concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720722673.7U CN206881182U (en) | 2017-06-21 | 2017-06-21 | The device of energy-efficient concentrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206881182U true CN206881182U (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720722673.7U Active CN206881182U (en) | 2017-06-21 | 2017-06-21 | The device of energy-efficient concentrate |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107158734A (en) * | 2017-06-21 | 2017-09-15 | 河北乐恒化工设备制造有限公司 | The device and its energy-efficient concentrating method of N ethyl piperazidines of energy-efficient concentrate |
| CN110282676A (en) * | 2019-07-22 | 2019-09-27 | 深圳市瑞升华科技股份有限公司 | Hydrazine hydrate waste water evaporation crystallization equipment and its evaporative crystallization technique |
| CN113289365A (en) * | 2021-07-01 | 2021-08-24 | 燕山大学 | Absorption heat pump rectification system based on intermediate reboiling and intermediate condensation |
| CN114060789A (en) * | 2021-11-29 | 2022-02-18 | 中国成达工程有限公司 | Method for recovering heat of isopropyl benzene device |
| CN114426612A (en) * | 2020-10-14 | 2022-05-03 | 中国石油化工股份有限公司 | Ethylene-vinyl alcohol copolymer production device |
| CN114516785A (en) * | 2022-02-18 | 2022-05-20 | 黄定峰 | Method and equipment for processing high-purity anethole by using star anise oil |
-
2017
- 2017-06-21 CN CN201720722673.7U patent/CN206881182U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107158734A (en) * | 2017-06-21 | 2017-09-15 | 河北乐恒化工设备制造有限公司 | The device and its energy-efficient concentrating method of N ethyl piperazidines of energy-efficient concentrate |
| CN110282676A (en) * | 2019-07-22 | 2019-09-27 | 深圳市瑞升华科技股份有限公司 | Hydrazine hydrate waste water evaporation crystallization equipment and its evaporative crystallization technique |
| CN114426612A (en) * | 2020-10-14 | 2022-05-03 | 中国石油化工股份有限公司 | Ethylene-vinyl alcohol copolymer production device |
| CN113289365A (en) * | 2021-07-01 | 2021-08-24 | 燕山大学 | Absorption heat pump rectification system based on intermediate reboiling and intermediate condensation |
| CN114060789A (en) * | 2021-11-29 | 2022-02-18 | 中国成达工程有限公司 | Method for recovering heat of isopropyl benzene device |
| CN114516785A (en) * | 2022-02-18 | 2022-05-20 | 黄定峰 | Method and equipment for processing high-purity anethole by using star anise oil |
| CN114516785B (en) * | 2022-02-18 | 2024-02-23 | 广西德馥香料有限公司 | Method and equipment for processing high-purity anethole by using star anise oil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 065000 Industrial Road two, Chao Bai He Industrial Park, Dachang Hui Autonomous County, Langfang, Hebei Patentee after: Hebei Le Heng energy saving equipment Co., Ltd. Address before: 065000 Industrial Road two, Chao Bai He Industrial Park, Dachang Hui Autonomous County, Langfang, Hebei Patentee before: Hebei Le Heng chemical industry equipment Manufacturing Co., Ltd |