CN209173413U - Energy-saving solvent high-efficiency separate combination type evaporator - Google Patents
Energy-saving solvent high-efficiency separate combination type evaporator Download PDFInfo
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- CN209173413U CN209173413U CN201821759880.0U CN201821759880U CN209173413U CN 209173413 U CN209173413 U CN 209173413U CN 201821759880 U CN201821759880 U CN 201821759880U CN 209173413 U CN209173413 U CN 209173413U
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- energy
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- wiped film
- evaporator
- inert gas
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Abstract
The utility model discloses a kind of energy-saving solvent high-efficiency separate combination type evaporators, including evaporator body, the evaporator body includes wiped film vaporization section, the lower end of wiped film vaporization section connects with packing section, bubbling segment is set below packing section, evaporator body bottom setting recombination sub-export, wiped film vaporization section top are arranged solvent inlet, secondary steam, inert gas outlet are arranged above solvent inlet；Setting is passed through the bubbling device of inert gas in the bubbling segment.The utility model is combined using film-type evaporation and stripping, need to only be heated low boiling point component therein and be vaporized, and energy consumption substantially reduces, and when input concentration is 50%, energy consumption only has 1/3 or so of rectifier unit, and tower bottom discharging content is higher.
Description
Technical field
The utility model relates to a kind of solvent evaporators.
Background technique
It is all rectifying column that solvent, which separates common equipment, in chemical production process, since distillation process need to add mixed solvent
Separation is realized after hot vapour in rectifying column, the latent heat of vaporization of solvent is offset in heating vaporescence, needs to consume big
The thermal energy of amount, especially when separation requirement is higher, it is often necessary to be just able to achieve using big reflux ratio, the energy of consumption is bigger.
Summary of the invention
The purpose of this utility model is to provide a kind of energy-saving solvent high-efficiency separation that low energy consumption, tower bottom discharging content is high
Combined-type evaporator.
The technical solution of the utility model is:
A kind of energy-saving solvent high-efficiency separate combination type evaporator, including evaporator body, it is characterized in that: the evaporator
Ontology includes wiped film vaporization section, and the lower end of wiped film vaporization section connects with packing section, and bubbling segment, evaporator sheet are arranged below packing section
Body bottom setting recombination sub-export, wiped film vaporization section top are arranged solvent inlet, secondary steam, inertia are arranged above solvent inlet
Gas vent；Setting is passed through the bubbling device of inert gas in the bubbling segment.
The bubbling device enters pipe with the gas for being passed through inert gas and connect, gas enter pipe also successively with lower part second level
Condenser, lower part first-stage condenser, vacuum pump, vacuum buffer tank connection；Secondary steam, inert gas outlet successively with top one
Grade condenser, the connection of top secondary condenser；Top secondary condenser gas vent is also connect with vacuum buffer tank.
The utility model is combined using film-type evaporation and stripping, only low boiling point component therein need to be heated vaporization and is
Can, energy consumption substantially reduces, and when input concentration is 50%, energy consumption only has 1/3 or so of rectifier unit, and tower bottom discharging content compared with
It is high.
Equipment is constituted by including film evaporator section, filler stripping section, being bubbled three sections of preheating section.It includes film evaporator section and includes film using commercially available
Evaporation structure form, different mixed solvents have different separative efficiencies, when vacuum degree is 500 ~ 2000Pa, general bottom
The content that discharges will such as further increase discharging content, vacuum degree must reach 50 ~ 100Pa, at this time vacuum system between 97 ~ 99%
The energy consumption of system is by substantial increase.The design reduces low boiling point working medium steam due to introducing nitrogen or other inert gases
Intrinsic standoff ratio, vacuum degree only need to control in 1000 ~ 10000 Pa, include film evaporation bottom discharge content at this time about 94 ~ 96%, this
Shi Gaowen (being supersolubility temperature relative to tower top low boiling point working medium) solvent is directly entered filler stripping section supersaturation stripping and (blows
It is de-), since the intrinsic standoff ratio of nitrogen or the addition tower top low boiling point working medium of other inert gases is greatly lowered, realize solvent
Secondary separation, high boiling solvent content is entered back into and is bubbled stripping section and realizes secondary stripping and right up to 99% or more in tower at this time
Nitrogen is preheated, at this time out tower height boiling point solvent content up to 99.5 ~ 99.8% or more.And the low boiling point working medium of tower top steams
The mixture of vapour and nitrogen or other inert gases is by entering vacuum (generally using room temperature and low temperature B-grade condensation) after condensation
Pump, after being handled again by condensation or absorption after pressure rise after vacuum pump, low boiling point is situated between in nitrogen or other inert gases
When matter content does not influence tower height boiling point solvent content out, nitrogen or other inert gases be can be recycled.
The characteristics of the utility model: film evaporator will be included and combined with stripping process, improve utilization rate of equipment and installations, effectively
Process flow is simplified.By the way that nitrogen or other inert gases is added so that under low vacuum state low boiling point working medium steam gas
Body partial pressure is lower, achievees the effect that conventional high vacuum state, can greatly save vacuum pump investment and operating cost.Film evaporation will be included
The high-temp liquid generated in the device course of work realizes supersaturated stripping in filler stripping section, effectively improves low boiling point
Medium molecule diffusion velocity.Being bubbled preheating section realizes the dual function that stripping and energy regenerating recycle, and also uses simultaneously
Effective vacuum degree (lift) of vacuum pump overcomes the air resistance of bubbling.Realize the circulation benefit of nitrogen or other inert gases
With reducing production cost, and eliminate VOC emission.Operating condition is more mild compared with rectifying (all grasps under negative pressure
Make), it is also safer, complicated control means are not needed yet, energy consumption is greatly lowered.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model one embodiment.
Specific embodiment
A kind of energy-saving solvent high-efficiency separate combination type evaporator, including evaporator body 1, the evaporator body include
The lower end of wiped film vaporization section 2, wiped film vaporization section connects with packing section 3, and bubbling segment 4, evaporator body bottom are arranged below packing section
Portion's setting recombination sub-export 5, wiped film vaporization section top are arranged solvent inlet 6, secondary steam, indifferent gas are arranged above solvent inlet
Body outlet 7；The bubbling device 8(that setting is passed through inert gas in the bubbling segment uses the bubbling device knot of prior art maturation
Configuration formula).
The bubbling device enters pipe 9 with the gas for being passed through inert gas and connect, gas enter pipe also successively with lower part two
Grade condenser 10, lower part first-stage condenser 11, vacuum pump 12, vacuum buffer tank 13 connect；Secondary steam, inert gas outlet according to
It is secondary to be connect with top first-stage condenser 14, top secondary condenser 15；Top secondary condenser gas vent also with vacuum buffer
Tank 13 connects.
Claims (2)
1. a kind of energy-saving solvent high-efficiency separate combination type evaporator, including evaporator body, it is characterized in that: the evaporator sheet
Body includes wiped film vaporization section, and the lower end of wiped film vaporization section connects with packing section, and bubbling segment, evaporator body are arranged below packing section
Bottom setting recombination sub-export, wiped film vaporization section top are arranged solvent inlet, secondary steam, indifferent gas are arranged above solvent inlet
Body outlet；Setting is passed through the bubbling device of inert gas in the bubbling segment.
2. energy-saving solvent high-efficiency separate combination type evaporator according to claim 1, it is characterized in that: the bubbling device
Enter pipe with the gas for being passed through inert gas to connect, gas enters pipe and also successively condenses with lower part secondary condenser, lower departmental level
Device, vacuum pump, vacuum buffer tank connection；Secondary steam, inert gas outlet are successively cold with top first-stage condenser, top second level
Condenser connection；Top secondary condenser gas vent is also connect with vacuum buffer tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821759880.0U CN209173413U (en) | 2018-10-29 | 2018-10-29 | Energy-saving solvent high-efficiency separate combination type evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821759880.0U CN209173413U (en) | 2018-10-29 | 2018-10-29 | Energy-saving solvent high-efficiency separate combination type evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209173413U true CN209173413U (en) | 2019-07-30 |
Family
ID=67362508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821759880.0U Active CN209173413U (en) | 2018-10-29 | 2018-10-29 | Energy-saving solvent high-efficiency separate combination type evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209173413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109173318A (en) * | 2018-10-29 | 2019-01-11 | 江苏九九久科技有限公司 | Energy-saving solvent high-efficiency separate combination type evaporator |
-
2018
- 2018-10-29 CN CN201821759880.0U patent/CN209173413U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109173318A (en) * | 2018-10-29 | 2019-01-11 | 江苏九九久科技有限公司 | Energy-saving solvent high-efficiency separate combination type evaporator |
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