CN102989184B - Energy-saving and environment-friendly falling film type evaporation and concentration device and method - Google Patents
Energy-saving and environment-friendly falling film type evaporation and concentration device and method Download PDFInfo
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- CN102989184B CN102989184B CN201210514841.5A CN201210514841A CN102989184B CN 102989184 B CN102989184 B CN 102989184B CN 201210514841 A CN201210514841 A CN 201210514841A CN 102989184 B CN102989184 B CN 102989184B
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Abstract
The invention discloses an energy-saving and environment-friendly falling film type evaporation and concentration device comprising a pot body and a heat exchanging chamber, wherein the upper part of the heat exchanging chamber is communicated with a vacuum pump through a leading-out pipeline of the heat exchanging chamber; the vacuum pump is communicated with the heat exchanging chamber through a heater; the heat exchanging chamber is further communicated with a liquid solvent storage chamber; evaporation pipes penetrate through the heat exchanging chamber from the top to the bottom; a solution nozzle is arranged at the top end of the pot body; the pot body is communicated with the vacuum pump through a space leading-out pipeline of the evaporation pipes; and the pot body is communicated with a concentrated solution storage chamber. The invention further discloses a falling film type evaporation and concentration method; and the evaporation and the concentration are implemented through the heat exchanging chamber, and the indoor pressure of the heat exchanging chamber is adjusted and controlled. According to the energy-saving and environment-friendly falling film type evaporation and concentration device disclosed by the invention, waste steam is recycled and reutilized and the operation is automatic; and heat and a waste solvent are sufficiently recycled so that energy sources are saved and the environment is also protected.
Description
Technical field
The present invention relates to natural product extraction device field, be specifically related to a kind of falling film type evaporation enrichment facility of energy-conserving and environment-protective, also relate to a kind of falling film type evaporation method for concentration, be applicable to large-scale zymotic fluid condensing crystallizing, natural product extraction liquid condensing crystallizing in Biochemical Engineering.
Background technology
At present in Biochemical Engineering and field of natural product extraction, no matter directly boil that boiling down contracting, Vacuum Concentration, falling film type are concentrated or to rise membrane type concentrated, be all directly carry out heating to zymotic fluid or extract to promote solvent evaporation, the solvent vapo(u)r heating steam and the generation used generally directly is discharged in air and goes.Because the steam of discharge contains a large amount of heat energy, directly discharge causes a large amount of energy wastes, and in addition, the boil-off gas of a lot of zymotic fluid or natural product extraction liquid has strong impulse smell or has certain toxicity.These solvent vapo(u)rs directly discharge and also cause air environmental pollution.Therefore, heat energy and the discharge of blocking-up solvent vapo(u)r of recycling the steam of discharge become in zymotic fluid and natural product extraction liquid concentration process the matter of utmost importance needing to solve, and also meet the requirement that national energy-saving reduces discharging.
Summary of the invention
The object of the invention is to be for prior art above shortcomings, a kind of falling film type evaporation enrichment facility of energy-conserving and environment-protective is provided, additionally provide a kind of falling film type evaporation method for concentration, carry out recovery and be circulated to after heater heats again by being used for the steam after to evaporation tube heating evaporation tube is heated; The solvent vapo(u)r produced solution evaporation carries out recovery and is circulated to after heater heats again and heats evaporation tube.Form certain high pressure and certain vacuum by vavuum pump respectively in heat-exchanging chamber space and evaporation tube space, be conducive to the steam heat release in heat-exchanging chamber, condensation like this, be also conducive to the solution rapid evaporation in evaporation tube.
To achieve these goals, the present invention adopts following technical measures:
A kind of falling film type evaporation enrichment facility of energy-conserving and environment-protective, comprise tank body, also comprise the heat-exchanging chamber be arranged in tank body, the inlet communication of pipeline and vavuum pump is derived by heat-exchanging chamber in heat-exchanging chamber top, vacuum delivery side of pump is communicated with the bottom of heat-exchanging chamber by heater, the bottom of heat-exchanging chamber is also communicated with liquid solvent apotheca, top to the bottom of heat-exchanging chamber is run through and is provided with several evaporation tubes, the top of tank body is provided with wash nozzle, the inlet communication of pipeline and vavuum pump is derived on the top of tank body by evaporation tube space, the bottom of tank body is communicated with concentrate apotheca.
Evaporation tube as above is all vertically arranged, and each evaporation tube is equidistantly arranged.
The bottom surface of tank body as above is inclined plane, and the bottom surface of heat-exchanging chamber is inclined plane.
Heat-exchanging chamber as above is arranged in the middle part of tank body.
Heat-exchanging chamber as above is connected with evaporation tube is integrated.
A falling film type evaporation enrichment facility for energy-conserving and environment-protective, is provided with pressure switch in described heater, and when pressure switch detects that heater internal gas pressure is greater than the critical air pressure value preset, pressure switch control heater stops heating; When the air pressure that pressure switch detects in heater is less than or equal to the critical air pressure value preset, pressure switch control heater heats.
The method that falling film type evaporation is concentrated, comprises the following steps:
Step 1, open valve, open vavuum pump, evaporation tube is heated to 100 degrees Celsius ~ 200 degrees Celsius by the heating circuit be made up of heat-exchanging chamber, heat-exchanging chamber derivation pipeline and heater by circulating air;
Step 2, valve-off, open wash nozzle, and the solution of sprinkling flows through evaporation tube and evaporates, and the circulating air of the steam that evaporation produces and step 1 is jointly circulated by vavuum pump and sends into heater and heat;
Step 3, when the air pressure in heating circuit is greater than the safe atmospheric pressure value preset, open valve; When the air pressure in heating circuit is less than or equal to the safe atmospheric pressure value preset, valve-off; When the air pressure in heating circuit is greater than the critical air pressure value preset, the pressure switch control heater in heater stops heating; When the air pressure in heating circuit is less than or equal to the critical air pressure value preset, the pressure switch control heater heating in heater, critical air pressure value is greater than safe atmospheric pressure value;
Step 4, steam condense in the bottom of heat-exchanging chamber due to the pressure in heating circuit, and flow into liquid solvent apotheca, and solution obtains concentrated solution after evaporation tube evaporation, and concentrated solution flows into concentrate apotheca.
The present invention compared with prior art, has the following advantages and effect:
1. pair waste steam carries out recycling, operation automation.
2. fully reclaim heat energy and spent solvent, not only economize energy but also protection of the environment.
3. economize energy more than 50% compared with traditional evaporating and concentrating process, solvent zero-emission.
4., compared with traditional evaporating and concentrating process, often concentrated 100 kilograms of zymotic fluids or extract, required time shortens 2/5.
Accompanying drawing explanation
Fig. 1 is structure chart of the present invention;
Fig. 2 is the top view of heat-exchanging chamber of the present invention.
In figure: 1-tank body; 2-evaporation tube; 3-concentrate confluxes room; 4-concentrate apotheca; 5-heat-exchanging chamber; 6-valve; 7-vavuum pump; 8-heater; 9-liquid solvent apotheca; 10-wash nozzle; 11-heat-exchanging chamber derives pipeline; Pipeline is derived in 12-evaporation tube space.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Embodiment 1:
As shown in Fig. 1 ~ Fig. 2, a kind of falling film type evaporation enrichment facility of energy-conserving and environment-protective, comprise tank body 1, also comprise the heat-exchanging chamber 5 be arranged in tank body 1, the inlet communication of pipeline 11 and vavuum pump 7 is derived by heat-exchanging chamber in heat-exchanging chamber 5 top, the outlet of vavuum pump 7 is communicated with by the bottom of heater 8 with heat-exchanging chamber 5, the bottom of heat-exchanging chamber 5 is also communicated with liquid solvent apotheca 9, top to the bottom of heat-exchanging chamber 5 is run through and is provided with several evaporation tubes 2, the top of tank body 1 is provided with wash nozzle 10, the inlet communication of pipeline 12 and vavuum pump 7 is derived on the top of tank body 1 by evaporation tube space, the bottom of tank body 1 is communicated with concentrate apotheca 4.Evaporation tube 2 is all vertically arranged, and each evaporation tube 2 is equidistantly arranged.The bottom surface of tank body 1 is inclined plane, and the bottom surface of heat-exchanging chamber 5 is inclined plane.Heat-exchanging chamber 5 is arranged in the middle part of tank body 1.Heat-exchanging chamber 5 is connected with evaporation tube 2 is integrated.Be provided with pressure switch in heater 8, when pressure switch detects that heater 8 internal gas pressure is greater than the critical air pressure value preset, pressure switch control heater 8 stops heating; When the air pressure that pressure switch detects in heater 8 is less than or equal to the critical air pressure value preset, pressure switch control heater 8 heats.Heat-exchanging chamber 5 forms certain high pressure due to the effect of valve 6 and vavuum pump 7 in running, is conducive to steam condensation and heat release.
Evaporation tube space 2 forms certain vacuum due to the effect of vavuum pump 7 in running, is conducive to the rapid evaporation of solvent.
Embodiment 2:
A falling film type evaporation method for concentration for energy-conserving and environment-protective, comprises the following steps:
Step 1, open valve 6, open vavuum pump 7, evaporation tube 2 is heated to 100 degrees Celsius ~ 200 degrees Celsius by the heating circuit of being derived pipeline 11 and heater 8 by heat-exchanging chamber 5, heat-exchanging chamber and forming by circulating air;
Step 2, valve-off 6, open wash nozzle 10, and the solution of sprinkling flows through evaporation tube 2 and evaporates, and the circulating air of the steam that evaporation produces and step 1 is jointly circulated by vavuum pump 7 and sends into heater 8 and heat;
Step 3, when the air pressure in heating circuit is greater than the safe atmospheric pressure value preset, open valve 6; When the air pressure in heating circuit is less than or equal to the safe atmospheric pressure value preset, valve-off 6; When the air pressure in heating circuit is greater than the critical air pressure value preset, the pressure switch control heater 8 in heater 8 stops heating; When the air pressure in heating circuit is less than or equal to the critical air pressure value preset, the pressure switch control heater 8 in heater 8 heats, and critical air pressure value is greater than safe atmospheric pressure value.
Step 4, steam because the pressure in heating circuit is in the cohesion of the bottom of heat-exchanging chamber 5, and flow into liquid solvent apotheca 9, and solution obtains concentrated solution after evaporation tube 2 evaporates, and concentrated solution flows into concentrate apotheca 4.
Embodiment 3:
Material: Cordceps militaris zymotic fluid.
Method for concentration: first open valve 6, open vavuum pump 7 and heater 8, now, circulating air circulates at heating circuit, certain vacuum is then formed in evaporation tube 2 space, the high temperature air of circulation starts pass through at heat-exchanging chamber and heat evaporation tube 2, when the temperature of evaporation tube 2 reaches 150 DEG C of setting, valve-off 6, wash nozzle 10 is opened, zymotic fluid sprays into evaporation tube 2 and tube wall along evaporation tube 2 is slowly dirty, and the producing steam that seethes with excitement on evaporation tube wall, steam is derived pipeline 12 by evaporation tube space and is imported vavuum pump and enter and enter heat-exchanging chamber 5 pairs of evaporation tubes after heater is heated together with original recirculated hot air and heat, gas now owing to entering heat-exchanging chamber 5 increases, cause the pressure increase of heat-exchanging chamber 5, high pressure makes a part of steam of heat-exchanging chamber condense into aqueous water and flow in liquid solvent apotheca 9, when the more steam of evaporation tube 2 enters heat-exchanging chamber 5, pressure continues to increase, when pressure exceedes the safe atmospheric pressure value preset, valve 6 is opened automatically, a part of steam is allowed to pass through and the safe pressure in space, maintaining heat switch room.Zymotic fluid after evaporation tube concentrates is flowed in concentrate apotheca 4.
Embodiment 4:
Material: the dibydro myricetrin extract (solvent is 60% ethanol) of vine tea.
Method of operating: first open valve 6, open vavuum pump 7 and heater 8, now, circulating air circulates at heating circuit, then forms certain vacuum at evaporation tube 2, the high temperature air of circulation starts pass through at heat-exchanging chamber 5 and heat evaporation tube 2, when the temperature of evaporation tube 2 reaches 100 DEG C of setting, valve-off 6, wash nozzle 10 is opened, extract sprays into evaporation tube 2 and tube wall along evaporation tube 2 is slowly dirty, and alcohol steam is produced in boiling on evaporation tube wall, steam is derived pipeline 12 by evaporation tube space and is imported vavuum pump 7 and enter and enter heat-exchanging chamber 5 pairs of evaporation tubes 2 after heater 8 is heated together with original recirculated hot air and heat, gas now owing to entering heat-exchanging chamber 5 increases, cause the pressure increase of heat-exchanging chamber 5, high pressure makes a part of steam of heat-exchanging chamber condense into liquid alcohol and flow in liquid solvent apotheca 9, when the more alcohol vapor of evaporation tube 2 enters heat-exchanging chamber 5, pressure continues to increase, when pressure exceedes the safe atmospheric pressure value preset, valve 6 is opened automatically, a part of steam is allowed to pass through and the safe pressure in space, maintaining heat switch room, when pressure in system is prescribed a time limit close in safe range, pressure switch control heater 8 stops heating, after pressure drop, pressure switch control heater 8 starts heating.Extract after evaporation tube 2 is concentrated is flowed in holding vessel 4.
Above-listed detailed description is illustrating for possible embodiments of the present invention, and this embodiment is also not used to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the protection domain of the application.
Claims (2)
1. the falling film type evaporation enrichment facility of energy-conserving and environment-protective, comprise tank body (1), it is characterized in that: also comprise the heat-exchanging chamber (5) be arranged in tank body (1), the inlet communication of pipeline (11) and vavuum pump (7) is derived by heat-exchanging chamber in heat-exchanging chamber (5) top, heat-exchanging chamber is derived on pipeline (11) and is provided with valve (6), the outlet of vavuum pump (7) is communicated with by the bottom of heater (8) with heat-exchanging chamber (5), the bottom of heat-exchanging chamber (5) is also communicated with liquid solvent apotheca (9), top to the bottom of heat-exchanging chamber (5) is run through and is provided with several evaporation tubes (2), the top of tank body (1) is provided with wash nozzle (10), the inlet communication of pipeline (12) and vavuum pump (7) is derived on the top of tank body (1) by evaporation tube space, the bottom of tank body (1) is communicated with concentrate apotheca (4),
Evaporation tube (2) is all vertically arranged, and each evaporation tube (2) is equidistantly arranged;
The bottom surface of tank body (1) is inclined plane, and the bottom surface of heat-exchanging chamber (5) is inclined plane;
Heat-exchanging chamber (5) is arranged on tank body (1) middle part;
Heat-exchanging chamber (5) is connected with evaporation tube (2) is integrated;
Heater is provided with pressure switch in (8), and when pressure switch detects that heater (8) internal gas pressure is greater than the critical air pressure value preset, pressure switch control heater (8) stops heating; When the air pressure that pressure switch detects in heater (8) is less than or equal to the critical air pressure value preset, pressure switch control heater (8) heats.
2. utilize device described in claim 1 to carry out the concentrated method of falling film type evaporation, it is characterized in that, comprise the following steps:
Step 1, open valve (6), open vavuum pump (7), evaporation tube (2) is heated to 100 degrees Celsius ~ 200 degrees Celsius by the heating circuit be made up of heat-exchanging chamber (5), heat-exchanging chamber derivation pipeline (11) and heater (8) by circulating air;
Step 2, valve-off (6), open wash nozzle (10), the solution sprayed flows through evaporation tube (2) and evaporates, and the circulating air of the steam that evaporation produces and step 1 is jointly circulated by vavuum pump (7) and sends into heater (8) and heat;
Step 3, when the air pressure in heating circuit is greater than the safe atmospheric pressure value preset, open valve (6); When the air pressure in heating circuit is less than or equal to the safe atmospheric pressure value preset, valve-off (6); When the air pressure in heating circuit is greater than the critical air pressure value preset, the pressure switch control heater (8) in heater (8) stops heating; When the air pressure in heating circuit is less than or equal to the critical air pressure value preset, pressure switch control heater (8) heating in heater (8), critical air pressure value is greater than safe atmospheric pressure value;
Step 4, steam condense in the bottom of heat-exchanging chamber (5) due to the pressure in heating circuit, and flow into liquid solvent apotheca (9), solution obtains concentrated solution after evaporation tube (2) evaporation, and concentrated solution flows into concentrate apotheca (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210514841.5A CN102989184B (en) | 2012-12-04 | 2012-12-04 | Energy-saving and environment-friendly falling film type evaporation and concentration device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210514841.5A CN102989184B (en) | 2012-12-04 | 2012-12-04 | Energy-saving and environment-friendly falling film type evaporation and concentration device and method |
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| Publication Number | Publication Date |
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| CN102989184A CN102989184A (en) | 2013-03-27 |
| CN102989184B true CN102989184B (en) | 2015-01-07 |
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| CN201210514841.5A Expired - Fee Related CN102989184B (en) | 2012-12-04 | 2012-12-04 | Energy-saving and environment-friendly falling film type evaporation and concentration device and method |
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| CN108142868A (en) * | 2017-12-26 | 2018-06-12 | 舟山市常青海洋食品有限公司 | A kind of concentrator for the processing of scallop powder |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002538A (en) * | 1973-11-09 | 1977-01-11 | Pottharst Jr John E | Distillation apparatus and method |
| US4762592A (en) * | 1980-10-27 | 1988-08-09 | Li Yao T | Orbital drive evaporator |
| CN2098318U (en) * | 1991-05-26 | 1992-03-11 | 云南省曲靖地区第一人民医院 | High-efficiency film separation tower |
| CN1075431A (en) * | 1992-02-16 | 1993-08-25 | 任临正 | Full-efficiency solution-consentrating evaporator |
| JPH11244843A (en) * | 1998-03-05 | 1999-09-14 | Hitachi Zosen Corp | Steam compression type pure water producing device |
| DE10257769A1 (en) * | 2002-12-10 | 2004-06-24 | Wagner Magnete Gmbh & Co. Kg | Distilling or separating moisture from feed containing moisture involves using distillate from condenser as ring liquid for liquid ring vacuum pump |
| CN2823247Y (en) * | 2005-08-15 | 2006-10-04 | 郭德豪 | Solar energy assisted heating vacuum evaporation concentrating device |
| CN202961922U (en) * | 2012-12-04 | 2013-06-05 | 湖北民族学院 | Energy-saving and environmentally-friendly falling-film type evaporation and concentration device |
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Inventor after: Dong Jingzhou Inventor after: Pang Weiguo Inventor before: Dong Jingzhou Inventor before: Ai Xunru Inventor before: Zheng Xiaojiang Inventor before: Wang Ying Inventor before: Wang Qi |
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Effective date of registration: 20160714 Address after: 443500 Changyang Economic Development Zone, Yichang, Hubei, Yichang Patentee after: Tea science and Technology Co., Ltd. Qingjiang Yichang tea Address before: 445000 Enshi Tujia and Miao Autonomous Prefecture, Enshi 39, Xueyuan Road, Hubei, Hubei Institute for Nationalities Patentee before: Hubei Institute for Nationalities |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20161204 |