CN206837537U - A kind of high-purity pentane plate distillation column piece-rate system - Google Patents
A kind of high-purity pentane plate distillation column piece-rate system Download PDFInfo
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- CN206837537U CN206837537U CN201720401701.5U CN201720401701U CN206837537U CN 206837537 U CN206837537 U CN 206837537U CN 201720401701 U CN201720401701 U CN 201720401701U CN 206837537 U CN206837537 U CN 206837537U
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Abstract
The utility model discloses a kind of high-purity pentane plate distillation column piece-rate system, including plate distillation column, condenser, pentane temporary storage tank and pentane storage tank, plate distillation column tower body internal upper part is provided with anti-liquid flooding device；Multilayer deflection plate is distributed with condenser and forms roundabout gas phase rising passway, isopentane feeds and pentane gas phase carry out countercurrent flow within the condenser.Compared with prior art, the utility model has advantages below：The waste heat of high-temperature steam after pentane rectifying is passed to isopentane feeds by one, improves isopentane feeds feeding temperature, secondly improving the structure of condenser, improves pentane vapor condensation effect；Third, by setting spill plate and liquid flooding pipe, it can effectively prevent liquid level too high and export and flow out from tower body, rectification chamber is isolated with liquid flooding chamber, can effectively avoid Concerning Flooding Phenomenon, such gas phase purity is high, prevents that substandard product from entering subsequent processing, ensure that product quality.
Description
Technical field
It the utility model is related to rectifying column technical field, and in particular to a kind of high-purity pentane plate distillation column segregative line
System.
Background technology
High-purity pentane can be used as solvent, for preparing Standard Gases, correction gas and as molecular sieve desorbing agent；Manufacture artificial
Ice, anesthetic, synthesis amylalcohol, isopentane etc., simultaneously because the strict control to organic emission, pentane foaming agent product purity
It is required that also more and more higher, low-purity product are gradually backed out market.Pentane is typically hydrogenated with rectifying point by light naphtha fraction at present
From producing.After light naphthar raw material hydrogenation, product purity and boiling range are realized mainly by distillation system, and distillation system tower separates
Precision, condenser heat transfer effect, operation automation and degree of stability to improve pentane product purity, reduce processing cost play to
Close important effect.
The piece-rate system of pentane rectifying at present carries out rectifying using plate column mostly, and this kind of mode mainly has following defect, its
One, the condensed device of pentane gas phase caused by rectifying is condensed into liquid phase, and the cooled WATER AS FLOW MEDIUM of heat is taken away, and the water for absorbing heat enters
Cooling tower is cooled down by blower fan, and heat is distributed in air, it is impossible to is recycled and reused, is caused energy waste；It is second, existing
Condenser structure it is simple, condensation efficiency is low；In summary, prior art not only consumes substantial amounts of cooling medium, and causes
Substantial amounts of energy waste, be not suitable for continuing to popularize；In addition, common plate distillation column operating pressure fluctuation is big, pressure difference is not
It is easy to control, it is easy to cause liquid flooding, reduce tower processing efficiency, cause component unqualified.If liquid flooding excessively serious just develop into is flooded
Tower, it will have a strong impact on normal production.
The content of the invention
The defects of the purpose of this utility model exists aiming at prior art, there is provided a kind of thermal efficiency is high and can avoid
The high-purity pentane plate distillation column piece-rate system of liquid flooding.
The technical solution of the utility model is：
A kind of high-purity pentane plate distillation column piece-rate system, including plate distillation column, condenser, pentane temporary storage tank and
Pentane storage tank；
Institute's plate distillation column includes tower body, is provided with multiple column plates in the tower body, the column plate is provided with downflow weir, described
The side that the bottom of column plate is located at downflow weir is provided with downspout, is provided with the tower body above the column plate of the top anti-overflow
Tower body is divided into rectification chamber and liquid flooding chamber by plate, the spill plate, and the middle part of the spill plate is provided with gas outlet, the gas outlet
Helical pipe is provided with, the outlet of the helical pipe is upper by pipeline and the outlet above tower body, the spill plate
Be respectively equipped with the liquid flooding pipe that diameter is more than gas outlet in the both sides of gas outlet, the both ends of the liquid flooding pipe respectively with rectification chamber and liquid
The connection of general chamber, the liquid flooding pipe are provided with the first magnetic valve, and the bottom of the spill plate is provided with the first liquid level sensor, and described the
One liquid level sensor is electrically connected by controller with the first magnetic valve, and the side of the tower body is provided with the backflow connected with liquid flooding chamber
Pipe, the return duct are provided with second solenoid valve, and the inwall of the liquid flooding chamber is provided with the second liquid level sensor, second liquid
Level sensor is electrically connected by controller with second solenoid valve；The outlet of the return duct is connected by the bottom of reboiler and tower body
Connect；
The condenser is made up of the conical collection portion of the cylindrical condensation part and bottom on top, the cylindrical cold
Solidifying portion be shell-and-tube heat exchanger structure, and left and right is staggeredly distributed with the roundabout gas phase rising of multilayer deflection plate composition in the condensation part
Passage, the width of the deflection plate, which is more than in the half and deflection plate of condensation part internal diameter, is distributed with discharge orifice under multiple liquid phases；It is described
The shell side import of condensation part is located at the bottom of housing and is higher than undermost deflection plate, and the shell-side outlet of the condensation part is located at shell
The bottom of body and shell-side outlet is stretched into collection portion, connects collecting tank, the end of the shell-side outlet is stretched under the shell-side outlet
Enter inside collecting tank and separately form fluid passage with collecting trench bottom, the collecting tank top is provided with overfall；It is described cold
The tube side import in solidifying portion is located at lower housing portion, tube side outlet is located at housing upper；
The pentane storage tank is connected by the tube side import of pump and the first pipeline and condenser, and the tube side of the condenser goes out
Mouth passes through the stoste outflow of the second pipeline and plate distillation column and connected；The shell side import of the condenser passes through pipeline and board-like essence
The outlet connection above tower tower body is evaporated, the outlet of the condenser collection portion lower end is connected with pentane temporary storage tank by pipeline.
Further, between the first pipeline and the second pipeline and it is connected to the 3rd pipeline.
The utility model compared with prior art, has advantages below：One is by more than high-temperature steam after pentane rectifying
Heat transfer improves isopentane feeds feeding temperature, secondly improving the structure of condenser, improves pentane vapor condensation effect to isopentane feeds
Fruit；Third, by setting spill plate and liquid flooding pipe, can effectively prevent liquid level too high and export and flow out from tower body, make rectification chamber with
Liquid flooding chamber is isolated, and can effectively avoid Concerning Flooding Phenomenon, and such gas phase purity is high, prevents substandard product from entering subsequent processing, ensures
Product quality.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of condenser；
Fig. 3 is the structural representation of deflection plate；
In figure：1st, tower body, 2, column plate, 3, downflow weir, 4, downspout, 5, spill plate, 6, rectification chamber, 7, liquid flooding chamber, 8, go out
Gas port, 9, helical pipe, 10, outlet, 11, plate distillation column, 12, liquid flooding pipe, the 13, first magnetic valve, the 14, first level sensing
Device, 15, return duct, 16, second solenoid valve, the 17, second liquid level sensor, 18, reboiler, 19, support bar, 20, pentane storage tank,
21st, condenser, 22, pentane temporary storage tank, 23, pump, the 24, first pipeline, the 25, second pipeline, the 26, the 3rd pipeline, 27, stoste is entered
Mouthful, 211, condensation part, 212, collection portion, 213, deflection plate, 214, tube side import, 215, tube side outlet, 216, shell side import,
217th, shell-side outlet, 218, condensation pore, 219, discharge orifice under liquid phase, 220, collecting tank, 221, overfall, 222, fluid passage.
Embodiment
Reference picture 1-3, a kind of high-purity pentane plate distillation column piece-rate system, including plate distillation column 11, condenser 21,
Pentane temporary storage tank 22 and pentane storage tank 20, wherein：
Plate distillation column 11 includes tower body 1, and multiple column plates 2 are provided with tower body 1, and spaced, parallel is set between column plate 2,
Downflow weir 3 is provided with column plate 2, the side that downflow weir 3 is located in the bottom of column plate 2 is provided with downspout 4.It is located in tower body 1
The top of column plate 2 of the top is provided with spill plate 5, tower body 1 is divided into rectification chamber 6 and liquid flooding chamber 7 by spill plate 5, by rectifying
Chamber 6 and liquid flooding chamber 7 separate, and during liquid flooding, liquid phase enters liquid flooding chamber 7, prevents outlet 10 of the liquid phase by tower body 1 with gas phase stream
Go out and influence product quality.There is gas outlet 8 at the middle part of spill plate 5, helical pipe 9, helical pipe are installed on gas outlet 8
9 outlet is connected by pipeline with the outlet 10 of the top of tower body 1, by setting helical pipe 9, can increase rectification chamber 6 and outlet
Mouth the distance between 8, the so gas phase with liquid phase the stop through helical pipe 9, can make most of liquid when discharging
Mutually fallen into along the inwall of helical pipe 9 from gas outlet 8 in rectification chamber 6, prevent gas phase from carrying impure product outflow tower body 1, carry
High yield quality.On spill plate 5 liquid flooding pipe 12 of the diameter more than gas outlet 8, this sample liquid are respectively equipped with positioned at the both sides of gas outlet 8
After general pipe 12 is opened, liquid phase first passes through liquid flooding pipe 12 and flows into liquid flooding chamber 7, prevents liquid phase from being flowed out with gas phase.The both ends of liquid flooding pipe 12
Connected respectively with rectification chamber 6 and liquid flooding chamber 7, the first magnetic valve 13 is provided with liquid flooding pipe 12, the is provided with the bottom of spill plate 5
One liquid level sensor 14, the first liquid level sensor 14 is electrically connected by controller with the first magnetic valve 13, when the first level sensing
When device 14 senses that the liquid level in spill plate 5 and tower body 1 between the column plate 2 of the top reaches setting liquid level, or when in tower body 1
When liquid level reaches the first 14 position of liquid level sensor, the first liquid level sensor 14 sends the signal to controller, and controller receives
The first magnetic valve 13 is controlled to open after signal, because the diameter of liquid flooding pipe 12 is more than the straight of the gas outlet 8 of the lower section of helical pipe 9
Footpath, and helical pipe 9, under liquid phase Gravitative Loads, the rate of climb is slower, and so excessive liquid phase can be preferentially through liquid flooding pipe 12
Into liquid flooding chamber 7, prevent from together discharging from the outlet 10 of tower body 1 by liquid phase with gas phase because of Concerning Flooding Phenomenon, ensure that product matter
Amount.The side of tower body 1 is provided with the return duct 15 connected with liquid flooding chamber 7, and return duct 15 is provided with second solenoid valve 16, in liquid flooding chamber
7 inwall is provided with the second liquid level sensor 17, and the second liquid level sensor 17 is electrically connected by controller with second solenoid valve 16,
When because of Concerning Flooding Phenomenon, as the liquid phase entered in liquid flooding chamber 7 is more and more, liquid level increases, when liquid level reaches the second liquid level
During sensor 17, the second liquid level sensor 17 sends the signal to controller, and controller controls second solenoid valve after receiving signal
16 are opened, and the liquid phase in such liquid flooding chamber 7 is flowed out by return duct 15, prevent from producing shadow to tower body because the liquid phase of liquid flooding chamber 7 is excessive
Ring.The outlet of return duct 15 is connected by reboiler 18 with the bottom of tower body 1, is directly added the liquid phase of backflow by reboiler 18
Heat, and send back in tower body 1, improve production efficiency.The periphery of helical pipe 9 is fixedly connected by support bar 19 with the inwall of tower body 1,
The bottom of helical pipe 9 is mutually fixed by the upper surface of support bar 19 and spill plate 5.Helical pipe 9 is entered by support bar 19
Row support is fixed.
Condenser 21 is made up of the cylindrical condensation part 211 on top and the conical collection portion 212 of bottom, cylindrical cold
Solidifying portion 211 is shell-and-tube heat exchanger structure, and the interior left and right in condensation part 211 is staggeredly distributed with multilayer deflection plate 213 and forms roundabout gas
Phase rising passway, the width of deflection plate 213, which is more than in the half and deflection plate 213 of the internal diameter of condensation part 211, is distributed with multiple condensations
Pore 218（For through condenser pipe 223）With discharge orifice 219 under liquid phase；The shell side import 216 of condensation part 211 is located under housing
Portion and it is higher than undermost deflection plate 213（The short circuit of pentane gas phase is placed directly to be flowed out by shell-side outlet 217）, condensation part 211
Shell-side outlet 217 is located at the bottom of housing and shell-side outlet 217 is stretched into collection portion 212,217 times connection collecting tanks of shell-side outlet
220, the end of shell-side outlet 217 stretches into the inside of collecting tank 220 and separately forms fluid passage 222 with the bottom of collecting tank 220,
The top of collecting tank 220 is provided with overfall 221；The tube side import 214 of condensation part 211 is located at lower housing portion, tube side outlet 215 is located at
Housing upper；Pentane storage tank 20 is connected by the pipeline 24 of pump 23 and first with the tube side import 214 of condenser 21, condenser 21
Tube side outlet 215 is connected by the second pipeline 25 with the stoste outflow 27 of plate distillation column, the first pipeline 24 and the second pipeline
Between 25 and it is connected to the 3rd pipeline 26；The shell side import 216 of condenser 21 passes through pipeline and going out above plate distillation column tower body
Mouth 10 is connected, and the outlet of the lower end of 21 collection portion of condenser 212 is connected with pentane temporary storage tank 22 by pipeline.
Operation principle：
During distillation operation, pentane storage tank 20 enters isopentane feeds by the pipeline 24 of pump 23 and first pipe of condenser 11
Journey, then in the importing tower of stoste outflow 27 through plate distillation column 11, pentane gas phase is laggard by helical pipe 9 caused by rectifying
Enter the shell side of condenser 11, pentane gas phase is progressively up in the roundabout gas phase rising passway that deflection plate 213 forms, and with pipe
Isopentane feeds in journey carry out heat exchange, and pentane gas phase is condensed into liquid phase pentane, and isopentane feeds are warmed go successively to therewith
Plate distillation column 11；Condensed liquid phase pentane successively flows into condensation part 211 by discharge orifice 219 under the liquid phase on deflection plate 213
Bottom, liquid phase pentane fall during countercurrent flow can also be carried out between pentane gas phase, improve condensation efficiency；It is heavy
Liquid phase pentane of the product in the bottom of condensation part 211 enters collecting tank 220 by shell-side outlet 217, after the rise of the liquid level of collecting tank 220
（The structure of collecting tank can keep liquid level certain in collecting tank 220 all the time, form fluid-tight structure, prevent uncooled pentane
Gas phase short circuit discharge）, liquid phase pentane exits into collection portion 212 from overfall 221 by fluid passage 222, then passes through cone
The outlet at bottom enters pentane temporary storage tank 22.
When distillation operation produces Concerning Flooding Phenomenon, when the liquid level in tower body 1 reaches the first 14 position of liquid level sensor, the
One liquid level sensor 14 sends the signal to controller, and controller controls the first magnetic valve 13 to open after receiving signal, due to liquid
The diameter of general pipe 12 is more than the diameter of the gas outlet 8 of the lower section of helical pipe 9, and helical pipe 9 is under liquid phase Gravitative Loads, on
Lifting speed is slower, and so excessive liquid phase preferentially can enter liquid flooding chamber 7 through liquid flooding pipe 12, prevent because of Concerning Flooding Phenomenon and by liquid phase with
Gas phase is together discharged from the outlet 10 of tower body 1, ensure that product quality；Further, since adding helical pipe 9, extend and carry
The gas phase of liquid phase and the time of contact of the inwall of helical pipe 9, improve the separation of liquid phase and gas phase, the so outlet from tower body 1
The gas phase purity of 10 discharges is higher, improves the quality of product；When with more and more, the liquid flooding into the liquid phase in liquid flooding chamber 7
The liquid level of chamber 7 increases, and when liquid level reaches the second liquid level sensor 17, the second liquid level sensor 17 sends the signal to control
Device processed, control second solenoid valve 16 is opened after controller receives signal, and the liquid phase in such liquid flooding chamber 7 is flowed out by return duct 15,
Prevent from having an impact tower body because the liquid phase of liquid flooding chamber 7 is excessive, the liquid phase into return duct 15 is heated into reboiler 18
Afterwards, and send back in tower body 1, improve production efficiency.
The utility model institute rectifying pentane purity can meet high-end solvent acquisition, as foaming agent, can drop up to 99.9%
Low organic emission.
The utility model is not limited to above-mentioned embodiment, in those skilled in the art's possessed knowledge,
It can also be made a variety of changes on the premise of the utility model aims are not departed from, the content after change still falls within the utility model
Protection domain.
Claims (2)
1. a kind of high-purity pentane plate distillation column piece-rate system, including plate distillation column, condenser, pentane temporary storage tank and penta
Alkane storage tank, it is characterised in that：
The plate distillation column includes tower body, is provided with multiple column plates in the tower body, the column plate is provided with downflow weir, the tower
The side that the bottom of plate is located at downflow weir is provided with downspout, and spill plate is provided with above the column plate of the top in the tower body,
Tower body is divided into rectification chamber and liquid flooding chamber by the spill plate, and the middle part of the spill plate is provided with gas outlet, on the gas outlet
Provided with helical pipe, the outlet of the helical pipe passes through pipeline and the outlet above tower body, is located on the spill plate
The both sides of gas outlet are respectively equipped with the liquid flooding pipe that diameter is more than gas outlet, the both ends of the liquid flooding pipe respectively with rectification chamber and liquid flooding
Chamber connects, and the liquid flooding pipe is provided with the first magnetic valve, and the bottom of the spill plate is provided with the first liquid level sensor, and described first
Liquid level sensor is electrically connected by controller with the first magnetic valve, and the side of the tower body is provided with the backflow connected with liquid flooding chamber
Pipe, the return duct are provided with second solenoid valve, and the inwall of the liquid flooding chamber is provided with the second liquid level sensor, second liquid
Level sensor is electrically connected by controller with second solenoid valve；The outlet of the return duct is connected by the bottom of reboiler and tower body
Connect；
The condenser is made up of the conical collection portion of the cylindrical condensation part and bottom on top, the cylindrical condensation part
For shell-and-tube heat exchanger structure, in the condensation part left and right be staggeredly distributed with multilayer deflection plate form roundabout gas phase rise it is logical
Road, the width of the deflection plate, which is more than in the half and deflection plate of condensation part internal diameter, is distributed with discharge orifice under multiple liquid phases；It is described cold
The shell side import in solidifying portion is located at the bottom of housing and is higher than undermost deflection plate, and the shell-side outlet of the condensation part is located at housing
Bottom and shell-side outlet stretch into collection portion, collecting tank is connected under the shell-side outlet, the end of the shell-side outlet is stretched into
Fluid passage is separately formed inside collecting tank and with collecting trench bottom, the collecting tank top is provided with overfall；The condensation
The tube side import in portion is located at lower housing portion, outlet is located at housing upper；
The pentane storage tank is connected by the tube side import of pump and the first pipeline and condenser, and the tube side outlet of the condenser is logical
The stoste outflow for crossing the second pipeline and plate distillation column connects；The shell side import of the condenser passes through pipeline and plate distillation column
Outlet connection above tower body, the outlet of the condenser collection portion lower end is connected with pentane temporary storage tank by pipeline.
A kind of 2. high-purity pentane plate distillation column piece-rate system according to claim 1, it is characterised in that：Described first
Between pipeline and the second pipeline and it is connected to the 3rd pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720401701.5U CN206837537U (en) | 2017-04-18 | 2017-04-18 | A kind of high-purity pentane plate distillation column piece-rate system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720401701.5U CN206837537U (en) | 2017-04-18 | 2017-04-18 | A kind of high-purity pentane plate distillation column piece-rate system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112451986A (en) * | 2020-12-11 | 2021-03-09 | 浙江开化合成材料有限公司 | Rectification equipment and rectification control method |
| CN115094244A (en) * | 2022-06-29 | 2022-09-23 | 深圳市中金岭南有色金属股份有限公司韶关冶炼厂 | Gas pipeline structure with uniform nozzle flow suitable for tower-type zinc rectifying furnace |
| CN115228122A (en) * | 2022-07-15 | 2022-10-25 | 广西上林县林发松香有限公司 | High-efficiency energy-saving distillation tower and method for extracting rosin and turpentine |
-
2017
- 2017-04-18 CN CN201720401701.5U patent/CN206837537U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112451986A (en) * | 2020-12-11 | 2021-03-09 | 浙江开化合成材料有限公司 | Rectification equipment and rectification control method |
| CN115094244A (en) * | 2022-06-29 | 2022-09-23 | 深圳市中金岭南有色金属股份有限公司韶关冶炼厂 | Gas pipeline structure with uniform nozzle flow suitable for tower-type zinc rectifying furnace |
| CN115094244B (en) * | 2022-06-29 | 2023-11-21 | 深圳市中金岭南有色金属股份有限公司韶关冶炼厂 | Gas pipeline structure suitable for tower zinc rectifying furnace and with uniform nozzle flow |
| CN115228122A (en) * | 2022-07-15 | 2022-10-25 | 广西上林县林发松香有限公司 | High-efficiency energy-saving distillation tower and method for extracting rosin and turpentine |
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