CN106215446A - Multi-heat-source vacuum distillation device and control method thereof - Google Patents

Multi-heat-source vacuum distillation device and control method thereof Download PDF

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Publication number
CN106215446A
CN106215446A CN201610887859.8A CN201610887859A CN106215446A CN 106215446 A CN106215446 A CN 106215446A CN 201610887859 A CN201610887859 A CN 201610887859A CN 106215446 A CN106215446 A CN 106215446A
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China
Prior art keywords
distillation
heat
heat source
vaporizer
bucket
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Pending
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CN201610887859.8A
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Chinese (zh)
Inventor
叶忠泓
洪明忠
李训安
高士闵
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Fu Sheng Industrial Co Ltd
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Fu Sheng Industrial Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D3/00Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/10Vacuum distillation

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

The invention discloses a multi-heat-source vacuum distillation device and a control method thereof. The multi-heat source vacuum distillation device comprises a distillation barrel for distilling a material, a condenser connected with the distillation barrel, a throttle valve connected with the condenser, a multi-heat source evaporator module connected with the throttle valve, and a compressor connected with the multi-heat source evaporator module and the condenser. The multi-heat source evaporator module comprises a plurality of evaporators, and one of the evaporators is selected to perform heat exchange according to the working environment so as to provide heat energy required by the distillation barrel for distilling materials. The multi-heat source vacuum distillation device and the control method thereof can effectively utilize proper heat sources to improve the efficiency of the distillation device.

Description

Multi-heat source vacuum distillation plant and control method thereof
Technical field
Heretofore described embodiment content relates to a kind of vacuum distillation plant and control method thereof.Especially, originally Embodiment content described in invention relates to a kind of multi-heat source vacuum distillation plant and control method thereof.
Background technology
Distillation is main utilizes each component boiling point in mixing liquid or liquid-solid different, makes low boiling component evaporate, then condenses To separate the unit process of whole component, therefore it is evaporation and the associating of two kinds of unit operations of condensation.Compared to other Separation method, distillation is relatively not required to use other solvent, therefore reduces advantages such as introducing new impurity.
Vacuum distilling (Vacuum Distilation) is then to carry out under reduced pressure, is generally used for separating at normal pressure Under be heated to material easily decomposes during boiling point, to reduce vapo(u)rizing temperature and to improve separation efficiency.It is usually used in chemistry, organic, gold Belong to compound, the separating-purifying of metal alkoxide etc..Vacuum distilling is also used for the degree of depth of some kind special gas and purifies.
Reduce pressure during boiling, the vapour pressure of material can be made, begin to boiling, distillation at a lower temperature Can be smoothed out.But, vacuum distilling must provide for thermal source with heating.And the distillation equipment of part just start running or Under the operating condition of part, its efficiency is the most limited, how to provide a kind of high efficiency vacuum distillation plant, the most always It it is the problem of the desired most ardently solution of industry.
Summary of the invention
In view of this, present invention proposes a kind of multi-heat source vacuum distillation plant.
One embodiment of present invention relates to a kind of multi-heat source vacuum distillation plant, includes a distillation bucket and uses To distill a material, a condenser is connected to distill bucket, and a choke valve is connected to condenser, and a multi-heat source vaporizer module connects In choke valve, and a compressor is connected to multi-heat source vaporizer module and condenser.Wherein, multi-heat source vaporizer module bag Containing multiple vaporizers, to select vaporizer according to working environment, one of them carries out heat exchange, to provide distillation bucket distilling material Required heat energy.
Wherein, above-mentioned multi-heat source vaporizer module comprises one first vaporizer, one second vaporizer and one the 3rd evaporation Device, wherein the first vaporizer absorbs the heat coming from the material that distillation bucket is evaporated, and the second vaporizer absorbs a high temperature waste liquid Heat or the high temperature air of machine room, and the 3rd vaporizer absorb surrounding air heat.
In one or more embodiment, multi-heat source vacuum distillation plant also includes a tank and is connected to the first evaporation Device, to be stored the material that the distillation bucket after cooling is evaporated.
In one or more embodiment, the material that the distillation bucket after cooling is evaporated comprises water.
In one or more embodiment, multi-heat source vacuum distillation plant also includes a vacuum pump, is connected to tank, To provide the vacuum needed for distillation bucket.
Another embodiment of present invention relates to the control method of a kind of multi-heat source vacuum distillation plant, comprises There is the following step, start a heat pump, it is judged that whether a distillation bucket has distillation bucket condensation to reclaim thermal source, if judging without distillation bucket condensation Reclaiming thermal source, in having further determined whether high temperature devil liquor recovery thermal source or machine room, high temperature air reclaims thermal source;And if judging The thermal source of devil liquor recovery without high temperature reclaims thermal source with high temperature air in machine room, utilizes air to reclaim thermal source, then starts one the 3rd evaporation Device circulation is to carry out distilling the distillation of material in bucket.
Before above-mentioned startup one heat pump, also include startup one vacuum pump, to provide the vacuum needed for distillation bucket Degree.
In one or more embodiment, the control method of multi-heat source vacuum distillation plant also includes the thing judging distillation bucket Whether material reaches required concentration, if not yet reaching required concentration, persistently distills.
In one or more embodiment, the control method of multi-heat source vacuum distillation plant, when judging whether a distillation bucket has Thermal source is reclaimed in distillation bucket condensation, if having had distillation bucket condensation to reclaim thermal source, then starts one first vaporizer circulation, to steam Evaporate the distillation of material in bucket.
In sum, the multi-heat source vacuum distillation plant in the present invention and control method thereof can utilize multi-heat source vaporizer Module properly selects suitable thermal source and carries out the origin of heat of vacuum distillation plant so that the efficiency of vacuum distillation plant is able to Promote, more can reduce production cost, can simultaneously be effectively utilize produced additional thermal energy, maintenance work environment in factory Temperature, improve employee work efficiency.
Accompanying drawing explanation
For the above and other purpose of the present invention, feature, advantage can be become apparent with embodiment, saying of appended accompanying drawing Bright as follows:
Fig. 1 is according to a kind of multi-heat source vacuum distillation plant schematic diagram depicted in some embodiments of the invention;
Fig. 2 is to illustrate according to the control method of a kind of multi-heat source vacuum distillation plant depicted in some embodiments of the invention Figure.
Detailed description of the invention
It is hereafter to coordinate appended accompanying drawing to be described in detail for embodiment, but the embodiment provided be not used to limit this The scope that contained of invention, and the description of structure operation is not used to limit its order performed, any is reconfigured by element Structure, is produced the device with impartial effect, is all the scope that the present invention is contained.It addition, accompanying drawing is the most for the purpose of description, And map not according to life size.For making to readily appreciate, in the description below, similar elements or similar components are by with identical symbol mark Show to illustrate.
It addition, the word (terms) used at full piece description and claims, in addition to having and indicating especially, generally Have each word use in this area, in the content that discloses at this with the usual meaning in special content.Some is in order to retouch State the word of the present invention by lower or discuss in the other places of this description, to provide those skilled in the art for the present invention Guiding extra in description.
About " first " used herein, " second " ... etc., censure order or the meaning of cis-position the most especially, also Being not used to limit the present invention, it is only used to element or the operation that difference describes with constructed term.
Secondly, the word used in this article " comprises ", " including ", " having ", " containing " etc., be opening Term, i.e. mean including but not limited to.
Fig. 1 is according to a kind of multi-heat source vacuum distillation plant schematic diagram depicted in some embodiments of the invention.In figure Shown in, the multi-heat source vacuum distillation plant 100 that disclosed herein, include a distillation bucket 120, it connects a condenser 110, Condenser 110 then connects a choke valve 130, and choke valve 130 connects a multi-heat source vaporizer module 140, multi-heat source vaporizer Module 140 connects a compressor 150, and compressor 150 connects condenser 110.
Owing to known vacuum distillation plant operating condition can be the most limited at part stage, so that being in low-energy-efficiency condition Operating, such as to the heating period of material in distillation bucket when equipment just starts, owing to condenser need to provide heat to meet material The demand of target temperature is risen to by room temperature, but, now heat produced by compressor is minimum, causes distilling apparatus to be in one The operating condition of low usefulness, therefore too increases the heat time heating time needed for distilling apparatus.
The multi-heat source vacuum distillation plant 100 of the present invention utilizes the thermodynamic cycle of compressor 150 to produce mobile heat energy Effect, be effectively improved many by compressor 150, condenser 110, choke valve 130 with the combination of multi-heat source vaporizer module 140 The efficiency of thermal source vacuum distillation plant 100 so that therefore production cost can also reduce, simultaneously because effectively utilize in factory Produced additional thermal energy, more can reduce the temperature of working environment, improves the work efficiency of employee.
Refering to Fig. 1, being full of coolant in the pipeline of the compressor 150 of the present invention, the compression of refrigerant vapor machine 150 by compression produces The refrigerant vapor of High Temperature High Pressure.After coolant steam flows into condenser 110, condense into condensed fluid because of heat extraction, now arranged The heat gone out can add the material in thermal distillation bucket 120 effectively, makes the temperature of material increase, with by the material vaporization of part.And Coolant then travels further into choke valve 130, flashes to refrigerant vapor subsequently in multi-heat source vaporizer module 140, and produces Endothermic effect.
Thermal source needed for the endothermic effect of multi-heat source vaporizer module 140 is it may be that the such as first vaporizer 142 is provided A thermal source, the heat of material of the vaporization of distillation bucket 120, enter the first vaporizer 142 via pipeline and make its temperature reduce into It is a liquid, and enters storage in tank 160.Thermal source needed for the endothermic effect of multi-heat source vaporizer module 140 is permissible It is, the thermal source that the such as second vaporizer 144 is provided, that is other useless recovery thermal source, can be produced in processing procedure High temperature waste liquids etc., other processing procedures in factory are produced unnecessary heat reclaims, and e.g. in machine room, high temperature air reclaims Thermal source.Thermal source needed for the endothermic effect of multi-heat source vaporizer module 140 is it is also possible that the such as the 3rd vaporizer 146 is provided A thermal source, that is surrounding air thermal source, it comes from and maintains thermal source produced by the operating temperature of general normality in factory, no Multi-heat source vacuum distillation plant 100 only can be provided can to provide employee work one suitable operating temperature simultaneously.3rd evaporation Device 146 can absorb this air heat source to be reduced air themperature, needed for making to be more suitable for work, and steams after being absorbed by this thermal source Evaporate the heating of material in bucket 120.
Refrigerant vapor can be sucked by compressor 150 again, repeats compression, to constitute a closed circuit.Whole circulation makes Obtain heat to be absorbed at multi-heat source vaporizer module 140, be then discharged to add in thermal distillation bucket 120 at condenser 110 Material.
The multi-heat source vaporizer module 140 of the present invention also includes a vacuum pump 170, with required in maintaining distillation bucket 120 Vacuum, be effectively reduced the temperature needed for distillation, and then improve the efficiency of distillation.
It is the control method according to a kind of multi-heat source vacuum distillation plant depicted in some embodiments of the invention refering to Fig. 2 Schematic diagram.As it can be seen, the control method of the multi-heat source vacuum distillation plant of the present invention, in step 210, concentration processes starts After, first step 220, vacuum pump is started.Then, step 230, further heat pump is started.This heat pump and including in Fig. 1 Condenser 110, choke valve 130, multi-heat source vaporizer module 140 and compressor 150.
Then, step 240 is entered, it is judged that in distillation bucket, whether have distillation bucket condensation to reclaim thermal source.If being judged as YES, i.e. steam Evaporate bucket condensation and have recovery thermal source, then enter step 250, start the first vaporizer circulation, use the first vaporizer to carry out thermal source Reclaim.If being judged as NO, i.e. reclaiming thermal source without distillation bucket condensation, entering step 260, further determined whether that other give up and reclaimed Thermal source, high temperature air or other recyclable thermal source in e.g. one high temperature devil liquor recovery thermal source, machine room.
If being judged as YES, i.e. there are other useless thermals source that reclaims, then entering step 270, starting one second vaporizer circulation.If sentencing It is no for breaking, and i.e. reclaims thermal source without distillation bucket condensation, utilizes surrounding air to reclaim thermal source, enter step 280, starts one the 3rd evaporation Device circulation is to carry out distilling the distillation of material in bucket, that is to maintain heat produced by general work ambient temperature, steams Evaporate the distillation of material in bucket.
Its intermediate pump can provide the vacuum needed for distillation bucket, reduces the temperature needed for distillation, promotes distillation Efficiency.
Then, step 290, persistently judge whether the material of distillation bucket reaches required concentration, if not yet reaching required Concentration, the most persistently carries out distilling and repeat above-mentioned judgement, to select optimal thermal source and vaporizer circulation, to promote frequent fever The efficiency of source vacuum distillation plant.
When reaching required concentration or having reached the moisture storage capacity of needs, enter step 300 and close heat pump, step 310 vacuum Pump cuts out, and step 320 terminates concentration processes.
In sum, the multi-heat source vacuum distillation plant in the present invention and control method thereof can utilize multi-heat source vaporizer Module properly selects suitable thermal source and carries out the origin of heat of vacuum distillation plant so that the efficiency of vacuum distillation plant is able to Promote, more can reduce production cost, can simultaneously be effectively utilize produced additional thermal energy, maintenance work environment in factory Temperature, improve employee work efficiency.
Although the present invention is disclosed above with embodiment, so it is not limited to the present invention, and any this area tool is logical Often skill, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations, the therefore protection of the present invention Scope is when being defined in the range of standard depending on appending claims.

Claims (10)

1. a multi-heat source vacuum distillation plant, it is characterised in that comprise:
One distillation bucket, in order to distill a material;
One condenser, is connected to this distillation bucket;
One choke valve, is connected to this condenser;
One multi-heat source vaporizer module, is connected to this choke valve;And
One compressor, is connected to this multi-heat source vaporizer module, and connects this condenser, wherein, and this multi-heat source vaporizer module Comprising multiple vaporizer, to select the plurality of vaporizer according to working environment, one of them carries out heat exchange, to provide this steaming Evaporate bucket and distill the heat energy needed for this material.
Multi-heat source vacuum distillation plant the most according to claim 1, it is characterised in that this multi-heat source vaporizer module comprises One first vaporizer, one second vaporizer and one the 3rd vaporizer, wherein this first vaporizer absorbs and comes from this distillation bucket institute The heat of the material of evaporation, this second vaporizer absorbs heat or the machine room high temperature air of a high temperature waste liquid, and the 3rd evaporates Device absorbs the heat of surrounding air.
Multi-heat source vacuum distillation plant the most according to claim 2, it is characterised in that also comprise a tank and be connected to This first vaporizer, to be stored the material that this distillation bucket after cooling is evaporated.
Multi-heat source vacuum distillation plant the most according to claim 3, it is characterised in that the distillation bucket institute after above-mentioned cooling The material of evaporation comprises water.
Multi-heat source vacuum distillation plant the most according to claim 4, it is characterised in that also comprise a vacuum pump, be connected to This tank, to provide the vacuum needed for this distillation bucket.
6. the control method of a multi-heat source vacuum distillation plant, it is characterised in that comprise:
Start a heat pump;
Judge whether a distillation bucket has distillation bucket condensation to reclaim thermal source;
If judging to reclaim thermal source without distillation bucket condensation, high temperature devil liquor recovery thermal source or machine room high temperature air are further determined whether Reclaim thermal source;And
If judging to reclaim thermal source without high temperature devil liquor recovery thermal source with machine room high temperature air, utilizing surrounding air to reclaim thermal source, starting One the 3rd vaporizer circulates to carry out the distillation of material in this distillation bucket.
The control method of multi-heat source vacuum distillation plant the most according to claim 6, it is characterised in that above-mentioned startup one Before heat pump, also comprise startup one vacuum pump, to provide the vacuum needed for this distillation bucket.
The control method of multi-heat source vacuum distillation plant the most according to claim 7, it is characterised in that also comprising judgement should Whether the material of distillation bucket reaches required concentration, if not yet reaching required concentration, persistently distills.
The control method of multi-heat source vacuum distillation plant the most according to claim 8, it is characterised in that if having reached required Concentration, close heat pump, and close vacuum pump.
The control method of multi-heat source vacuum distillation plant the most according to claim 9, it is characterised in that judge that one distills Whether bucket has distillation bucket condensation to reclaim thermal source, if having had distillation bucket condensation to reclaim thermal source, then starts one first vaporizer circulation, To carry out the distillation of material in this distillation bucket.
CN201610887859.8A 2016-09-01 2016-10-12 Multi-heat-source vacuum distillation device and control method thereof Pending CN106215446A (en)

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