CN204193534U - A kind of concentration systems of pentanediamine - Google Patents

A kind of concentration systems of pentanediamine Download PDF

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Publication number
CN204193534U
CN204193534U CN201420454242.3U CN201420454242U CN204193534U CN 204193534 U CN204193534 U CN 204193534U CN 201420454242 U CN201420454242 U CN 201420454242U CN 204193534 U CN204193534 U CN 204193534U
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Prior art keywords
evaporimeter
gas
concentration systems
utility
model
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CN201420454242.3U
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Chinese (zh)
Inventor
秦兵兵
刘驰
郭善诗
戴端芳
李乃强
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Cathay Wusu Biomaterial Co ltd
Cathay R&D Center Co Ltd
CIBT America Inc
Original Assignee
Kai Sai (jinxiang) Biological Material Co Ltd
SHANDONG CATHAY BIOLOGICAL TECHNOLOGY CO LTD
SHANDONG CATHAY BIOTECHNOLOGICAL MATERIAL CO Ltd
Shanghai Cathay Biotechnology Research and Development Center Co Ltd
Cathay Industrial Biotech Ltd
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Priority to CN201420454242.3U priority Critical patent/CN204193534U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency

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Abstract

The utility model provides a kind of concentration systems of pentanediamine, comprises, at least one evaporimeter, and described evaporimeter comprises discharging opening and refluxing opening, and outside at described evaporimeter, described discharging opening is connected by a peripheral passage with described refluxing opening; Vapour compression machine is described evaporimeter supply heated air; Separator, is communicated with described evaporimeter and described vapour compression machine respectively; And absorptive unit, absorb the described heated air that described evaporimeter is discharged.Concentration systems of the present utility model, reasonable in design, effectively can not only concentrate solution, can also efficiency utilization efficiency, automaticity is high and products obtained therefrom purity can meet production requirement.

Description

A kind of concentration systems of pentanediamine
Technical field
The utility model relates to concentrator, is specially a kind of energy-efficient concentration systems.
Background technology
The main application of pentanediamine comprises high polymer preparation, organic synthesis intermediate, epoxy curing agent, also for biological study.Wherein, synthetic nylon polymer is an important application of pentanediamine, sets out from 1,5-pentanediamine, can the nylon product nylon 510 of synthetic nylon 56 or full bio-based, these products can be applied in the many aspects of the daily productive lifes such as electronic apparatus, plant equipment, automobile component.
In theory, the bioanalysis of pentanediamine is produced and is referred to through direct fermentation production or lysine decarboxylase decarboxylation production pentanediamine, is then separated from material liquid and obtains target product.But current Biological preparation pentanediamine is in the starting stage, less to the preparation research of the finished product of pentanediamine, pentanediamine crude product is separated, purifying, the technique of concentrated, rectifying, device and system also rarely have report.
In the fields such as biology, chemical industry, concentrated is a kind of very important production technology, and it plays a part key in the production process of many materials.Therefore, the efficiency of concentration technology becomes impact numerous biochemical product, the particularly key factor of pentanediamine product cost, quality, yield.
In existing concentration technology design, by equipment concentrated for chemicals to be concentrated generally primarily of compositions such as head tank, separator, heater or condensers, during operation, chemicals to be concentrated enters separator from head tank, first obtain liquid material and admixture of gas through gas-liquid separation, liquid material after separation is heated by heater, or admixture of gas enters subsequent processing after condenser condenses.In this device, concentrated owing to being separated merely through single, product can be caused in process of production to waste, and the concentration of the concentrated material obtained also differs and reaches requirement surely, therefore design procedure and the implementation cost of subsequent technique is also just increased, meanwhile, in this condensing mode, it is very large that heater consumes quantity of steam, and heat transfer rate is low, efficiency utilization rate is lower, and automaticity is low, well can not reach the industrialized requirement of this chemicals concentrated.
Because pentanediamine has certain corrosivity, impurity or gas may be contained in the parting liquid obtained by fermentation liquor process, its intractability is large, directly apply mechanically production method and production equipment that separation above-mentioned in prior art concentrates other chemicals, not only can not obtain good concentrated effect, also larger to the damage of equipment, the requirement that pentanediamine is concentrated can not be met, thus cause production efficiency low, production cost is high, to the damage comparatively large equipment well damage of equipment, maintenance cost is higher, therefore actual production is unsuitable for, product purity does not reach high request, seriously constrain the application of pentanediamine in nylon production and other field.The equipment needing exploitation to match with technique is to carry out the concentrated of pentanediamine.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of concentration systems of pentanediamine, comprises, at least one evaporimeter, described evaporimeter comprises discharging opening and refluxing opening, and outside at described evaporimeter, described discharging opening is connected by a peripheral passage with described refluxing opening; Vapour compression machine is described evaporimeter supply heated air; Separator, is communicated with described evaporimeter and described vapour compression machine respectively; And absorptive unit, absorb the described heated air that described evaporimeter is discharged.
According to an embodiment of the present utility model, described evaporimeter be selected from falling film evaporator, climbing film evaporator and lift-film evaporator one or more.
According to another embodiment of the present utility model, described absorptive unit is selected from one or more in spray column, tourie and heat exchanger.
According to another embodiment of the present utility model, also comprise circulating pump, be arranged at described peripheral passage.
According to another embodiment of the present utility model, also comprise product outlet, be arranged at described peripheral passage.
According to another embodiment of the present utility model, also comprise the finished pot be connected with described product outlet, described finished pot is arranged between described circulating pump and described refluxing opening.
According to another embodiment of the present utility model, between described finished pot and described peripheral passage, be provided with a control valve.
According to another embodiment of the present utility model, described evaporimeter comprises housing and is positioned at the main body of enclosure interior, between described housing and described main body, be formed with heat exchanging chamber; Described main body comprises evaporation layer and separating layer.
According to another embodiment of the present utility model, after material to be concentrated enters the evaporation layer of described evaporimeter, through described evaporation layer heat temperature raising, form gas-liquid mixture; Described gas-liquid mixture enters described separating layer from described evaporation layer, in described separating layer after gas-liquid separation, obtains the first concentrate and the first admixture of gas; Described first concentrate enters described peripheral passage from described discharging opening, and reenters described evaporation layer along described peripheral passage through described refluxing opening under the effect of described circulating pump; Described first admixture of gas enters described separator, at described separator after gas-liquid separation, obtains the second concentrate and the second admixture of gas; Described second concentrate enters described evaporation layer by described peripheral passage, and described second admixture of gas, after described vapour compression machine pressurized, heated, enters described heat exchanging chamber, after carrying out heat exchange, is absorbed by described absorptive unit with described evaporation layer; Repeat aforesaid operations, until the concentration of concentrate reaches preassigned in described peripheral passage, collect concentrate by described product outlet.
Concentration systems of the present utility model, reasonable in design, effectively can not only concentrate solution, can also efficiency utilization efficiency, automaticity is high and products obtained therefrom purity can meet production requirement.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model concentration systems one embodiment.
Detailed description of the invention
The exemplary embodiment embodying the utility model feature & benefits will describe in detail in the following description.Be understood that the utility model can have various changes on different embodiments, it neither departs from scope of the present utility model, and explanation wherein and to be shown in be use when explain in essence, and be not used to limit the utility model.
In the utility model, the upper and lower term position that waits, only for explaining embodiment of the present utility model by reference to the accompanying drawings, is not intended to limit the utility model; Pentanediamine involved in the utility model all refers to 1,5-pentanediamine.
The utility model provides a kind of concentration systems of pentanediamine, comprises, at least one evaporimeter, described evaporimeter comprises discharging opening and refluxing opening, outside at described evaporimeter, described discharging opening is connected by a peripheral passage with described refluxing opening, and described peripheral passage has a product outlet; Circulating pump, is arranged at described peripheral passage; Vapour compression machine is described evaporimeter supply heated air; Separator, is communicated with described evaporimeter and described vapour compression machine respectively; And absorptive unit, absorb the described heated air that described evaporimeter is discharged.
Below, with the simmer down to of pentanediamine aqueous solution example, the concentration systems of the utility model one embodiment is described in detail.
As shown in Figure 1, the concentration systems of the utility model one embodiment, comprises material box 1, evaporimeter 2, circulating pump 3, finished pot 4, separator 5, vapour compression machine 6 and absorptive unit 7.
In present embodiment, evaporimeter 2 is falling film evaporator, comprises housing and the main body being positioned at enclosure interior, is formed with heat exchanging chamber 21 between housing and main body, and heat exchanging chamber 21 has superposed steam inlet 21a and is positioned at the steam (vapor) outlet 21b of bottom.Main body comprises the evaporation layer 22 being positioned at upper strata and the separating layer 23 being positioned at lower floor, is provided with the charging aperture 24 be connected with main body and refluxing opening 25, the bottom of evaporimeter 2 is provided with the discharging opening 26 be connected with main body and gas outlet 27 in the upper end of evaporimeter 2.
Material box 1 for holding pentanediamine solution to be concentrated is connected with the charging aperture 24 of evaporimeter 2 by mateiral pump 11.Material to be concentrated enters the evaporation layer 22 of evaporimeter 2 under the effect of mateiral pump 11, and after evaporation layer 22 heats, the large water gaging in material, part pentanediamine are vaporized, and form a gas-liquid mixture; Afterwards, this gas-liquid mixture enters separating layer 23, in separating layer 23 after preliminary gas-liquid separation, pentanediamine concentrate (liquid phase) discharges evaporimeter 2 from discharging opening 26, and the first admixture of gas (gas phase) comprising steam, difficult solidifying gas and pentanediamine discharges evaporimeter 2 from gas outlet 27.In the utility model, difficult solidifying gas enters concentration systems together with material solution to be concentrated, its slightly soluble or be insoluble in water, and being gas under normal temperature, such as, can be one or more in carbon dioxide, nitrogen, argon gas, hydrogen, oxygen.
Discharging opening 26 is connected with refluxing opening 25 by circulating pump 3, the concentrate flowing out evaporimeter 2 from discharging opening 26 can reenter evaporimeter 2 from refluxing opening 25 under the effect of circulating pump 3, makes discharging opening 26, circulating pump 3, forms a peripheral passage L with refluxing opening 25.On the L of peripheral passage, be also provided with finished pot 4 between circulating pump 3 and refluxing opening 25, finished pot 4 is connected with peripheral passage L by control valve 41.By controlling charging rate and detecting discharging speed, the concentration of concentrate can be calculated easily.When material through several times circulation is concentrated reach the concentration standard of needs time, control valve 41 can be operated concentrate is collected in finished pot 4.
Separator 5 comprises the separator gas outlet 51 being positioned at upper end, the liquid outlet 52 being positioned at lower end and is positioned at the air inlet 53 at middle part.Separator 5 is connected with the gas outlet 27 of evaporimeter 2 by air inlet 53, and separator gas outlet 51 is connected with vapour compression machine 6, and liquid outlet 52 is communicated between peripheral passage L top discharge mouth 26 and circulating pump 3.The gas of discharging from gas outlet 27 enters separator 5 by air inlet 53, in separator 5, after second time gas-liquid separation, liquid containing pentanediamine enters peripheral passage L from liquid outlet 52, coagulates the second admixture of gas of gas composition by separator gas outlet 51 drain separator 5 primarily of steam, difficulty.
Vapour compression machine 6 is connected with the steam inlet 21a of evaporimeter 2 and the separator gas outlet 51 of separator 5 respectively.Second admixture of gas enters vapour compression machine 6 by after separator gas outlet 51 drain separator 5, and be heated as high temperature and high pressure gas by compression, enter in the heat exchanging chamber 21 of evaporimeter 2 by steam inlet 21a afterwards, carry out heat exchange with evaporation layer 22, heat is passed to the material being positioned at evaporation layer 22.After heat exchange, the temperature of the second admixture of gas declines, wherein a large amount of steam is condensed into water at low temperatures, and discharge heat exchanging chamber 21 by condensation-water drain (not shown), remaining the 3rd gaseous mixture comprising difficult solidifying gas and a small amount of steam discharges heat exchanging chamber 21 from steam (vapor) outlet 21b.
Absorptive unit 7 is connected with the steam (vapor) outlet 21b of evaporimeter 2 by an aspiration pump 71, and under the effect of aspiration pump 71, the 3rd gaseous mixture discharges heat exchanging chamber 21 from steam (vapor) outlet 21b, and enters absorptive unit 7.Difficulty by the residue water vapor condensation Cheng Shui in the 3rd gaseous mixture, and is coagulated gas discharge by absorptive unit 7.In the utility model, absorptive unit can be the combination of one or more in spray column, tourie or heat exchanger.
During operation, the material in material box 1 enters the evaporation layer 22 of evaporimeter 2 under the effect of mateiral pump 11 from charging aperture 24, and after evaporation layer 22 heat temperature raising, large water gaging, a small amount of pentanediamine vaporization, form a gas-liquid mixture.
This gas-liquid mixture enters separating layer 23, in separating layer 23 after preliminary gas-liquid separation, pentanediamine concentrate discharges evaporimeter 2 from discharging opening 26, and under the effect of circulating pump 3, the evaporation layer 22 of evaporimeter 2 is reentered along peripheral passage L, when solution through several times circulation is concentrated reach the concentration standard of needs time, control valve 41 can be operated and concentrate is collected into is connected in the finished pot 4 of peripheral passage L.
Isolated first admixture of gas of self-separation layer 23 (comprising steam, difficult solidifying gas and a small amount of pentanediamine) through gas outlet 27, air inlet 53 enters separator 5, in separator 5 again after gas-liquid separation, the isolated liquid containing pentanediamine enters peripheral passage L from liquid outlet 52, and the second admixture of gas be made up of steam, difficult solidifying gas is by separator gas outlet 51 drain separator 5 and enter vapour compression machine 6.
Second admixture of gas is heated as high-temperature gas by compression in vapour compression machine 6, enter in the heat exchanging chamber 21 of evaporimeter 2 by steam inlet 21a afterwards, and heat for evaporation layer 22 in heat exchanging chamber 21, transfer heat to the pentanediamine feed liquid being positioned at evaporation layer 22, along with the transmission of heat, the temperature of the second admixture of gas declines, wherein a large amount of steam is condensed into water at low temperatures and discharges heat exchanging chamber, and remaining the 3rd gaseous mixture comprising difficult solidifying gas and a small amount of steam enters absorptive unit 7 under the effect of aspiration pump 71.
Difficulty by the residue water vapor condensation Cheng Shui in the 3rd gaseous mixture, and is coagulated gas discharge by absorptive unit 7.
In the utility model, the input concentration of pentanediamine solution is 2wt% ~ 15wt%, such as, can be 4wt%; Discharge concentration for being not less than 20wt%, such as, can being 25wt%, being more preferably not less than 40wt%; The evaporating temperature of evaporimeter can be 80 DEG C ~ 90 DEG C; Evaporating pressure is-0.07MPa ~ 0MPa (gauge pressure), and such as evaporating pressure can be-0.05MPa (gauge pressure).
Concentration systems of the present utility model, concentrates by carrying out continuous several times to solution, improves thickening efficiency, gas is by carrying out heat exchange for evaporimeter heat supply and pentanediamine solution after vapour compression machine heating, effective recycling heat, improves efficiency, greatly reduces concentrated operating cost; Effectively can remove by absorptive unit a large amount of difficulties evaporated in solution and coagulate gas.
In prior art, the four-effect evaporation of industrial routine often evaporates one ton of water and approximately consumes steam 0.35 ton, and cost is about combined into 70 yuan, and concentration systems of the present utility model often evaporates one ton of water consumption, 30 degree of electricity in concentration process, and cost is about combined into 21 yuan.This shows, concentration systems of the present utility model, compared to prior art, reduces concentrated operating cost to a great extent.
In the utility model, discharge concentration or cycles of concentration measure by charging and discharging speed and input concentration.Such as, the charging rate of evaporimeter is 100g/s, and finished product discharging speed is 50g/s, can show that the more initial material of the concentration of concentrate is doubled.Therefore, by control charging rate and detect discharging speed, can facilitate measuring and calculating concentrate concentration.Enrichment facility automaticity of the present utility model is higher, easy to use, and the purity finally obtaining product is better.
The utility model is not particularly limited material box, and it can be the existing utensil for holding material.
In the utility model, evaporimeter can be one or more in falling film evaporator, climbing film evaporator, lift-film evaporator.It is arranged can be independent evaporimeter, and also can be several evaporimeters in parallel, the material inlet of evaporimeter and steam (vapor) outlet be and flow connection.
In the utility model, the evaporating temperature of evaporimeter can be 60 DEG C ~ 100 DEG C, and evaporating pressure can be-0.07MPa ~ 0MPa (gauge pressure).
In the utility model, the boiling point of difficult solidifying gas is lower, is gas at normal temperatures, and slightly soluble or be insoluble in water, such as it can be one or more in nitrogen, argon gas, hydrogen, oxygen, carbon dioxide.In the utility model, difficult solidifying gas enters concentration systems together with material solution to be concentrated, along with the carrying out of vaporizing liquid, gas-liquid separation, difficult solidifying gas is in the gas phase of system all the time, and after vapour compression machine pressurized, heated, enter the heat exchanging chamber of evaporimeter, for the material solution in evaporimeter provides heat.The boiling point coagulating gas due to difficulty is lower, be difficult to condensation, and with evaporimeter heat exchange after still exist in a large number (being about 1% ~ 3% of total evaporation) with gaseous state, if discharge in heat exchanging chamber not in time, again can be added hot compression by vapour compression machine, hinder the circulation of gas between separator and vapour compression machine, thus the circulation in concentration systems is obstructed, energy consumption increases, and efficiency declines.
The utility model, by arranging the absorptive unit be connected with the heat exchanging chamber of evaporimeter, in time, is effectively discharged the difficulty cooled in heat exchanging chamber and is coagulated gas, the concentration cycles in system can be carried out efficiently.
In the utility model, mateiral pump, aspiration pump, circulating pump etc. can be all the existing pump that can realize respective function.
The utility model is not particularly limited finished pot, and it can be the existing utensil for collection material.
Concentration systems of the present utility model is by coagulating the admixture of gas of gas for medium is to the heating material in evaporimeter to comprise difficulty, and effectively remove above-mentioned difficulty by absorptive unit and coagulate gas, the not only Appropriate application energy, also avoid the interference of this gas to material, concentration systems of the present utility model is specially adapted to the concentrated of pentanediamine material solution.
Concentration systems of the present utility model can be used for suitability for industrialized production, as the ring produced in chain, can be recycled, has energy-conservation, efficient feature.
Unless limited otherwise, the utility model term used is the implication that those skilled in the art understand usually.
Embodiment described by the utility model is only for exemplary purpose; and be not used to limit protection domain of the present utility model; those skilled in the art can make other replacements various, changes and improvements in scope of the present utility model; thus; the utility model is not limited to above-mentioned embodiment, and is only defined by the claims.

Claims (6)

1. a concentration systems for pentanediamine, is characterized in that, comprises,
At least one evaporimeter, described evaporimeter comprises discharging opening and refluxing opening, and outside at described evaporimeter, described discharging opening is connected by a peripheral passage with described refluxing opening;
Vapour compression machine is described evaporimeter supply heated air;
Separator, is communicated with described evaporimeter and described vapour compression machine respectively; And
Absorptive unit, absorbs the described heated air that described evaporimeter is discharged.
2. concentration systems according to claim 1, is characterized in that, described evaporimeter be selected from falling film evaporator, climbing film evaporator and lift-film evaporator one or more.
3. concentration systems according to claim 1, is characterized in that, described absorptive unit is selected from one or more in spray column, tourie and heat exchanger.
4. concentration systems according to claim 1, is characterized in that, also comprises circulating pump, is arranged at described peripheral passage.
5. concentration systems according to claim 4, is characterized in that, also comprises product outlet, is arranged at described peripheral passage.
6. concentration systems according to claim 5, is characterized in that, described evaporimeter comprises housing and is positioned at the main body of enclosure interior, between described housing and described main body, be formed with heat exchanging chamber; Described main body comprises evaporation layer and separating layer.
CN201420454242.3U 2014-08-12 2014-08-12 A kind of concentration systems of pentanediamine Expired - Lifetime CN204193534U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105327518A (en) * 2014-08-12 2016-02-17 上海凯赛生物技术研发中心有限公司 Pentanediamine concentration system and method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105327518A (en) * 2014-08-12 2016-02-17 上海凯赛生物技术研发中心有限公司 Pentanediamine concentration system and method thereof
CN105327518B (en) * 2014-08-12 2018-01-23 上海凯赛生物技术研发中心有限公司 The concentration systems and method of a kind of pentanediamine

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Inventor after: Qin Bingbing

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Inventor after: Guo Shanshi

Inventor after: Dai Duanfang

Inventor after: Li Naiqiang

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Granted publication date: 20150311