CN104623913B - A kind of Chinese medicinal granule concentration process vacustat control device and method - Google Patents
A kind of Chinese medicinal granule concentration process vacustat control device and method Download PDFInfo
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- CN104623913B CN104623913B CN201410817596.4A CN201410817596A CN104623913B CN 104623913 B CN104623913 B CN 104623913B CN 201410817596 A CN201410817596 A CN 201410817596A CN 104623913 B CN104623913 B CN 104623913B
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Abstract
The invention discloses a kind of Chinese medicinal granule concentration process vacustat control device and method, after accumulator is emptying, control system starts the first pressure sensor, described first pressure sensor detects the vacuum in accumulator, testing result is fed back to described control system, described control system controls the aperture of automatic regulating valve according to testing result, regulates the quantity of steam of evaporation concentrator simultaneously, maintains evaporation concentrator temperature stabilization.By the way, Chinese medicinal granule concentration process vacustat control device of the present invention and method, by controlling the aperture of automatic regulating valve and the quantity of steam of evaporation concentrator, reduce the vacuum in concentration systems and temperature fluctuation, thus overcome many defects and the deficiency of the existence of existing concentration process, greatly save concentration time and energy consumption.
Description
Technical field
The present invention relates to field of traditional Chinese medicine pharmacy, particularly relate to a kind of Chinese medicinal granule concentration process vacustat control device and method.
Background technology
Chinese medicinal granule pharmaceutical technology flow process is generally: medicinal material pre-treatment (gather-clean-dry)-extraction-separation-purifying-(pulverizing)-screen analysis-mixing-granulation.Wherein concentration process is the important step that Chinese medicinal granule is produced, and plays an important role to the security, validity, stability etc. of final products.In concentration process, traditional method of operating is when the solvent liquid level accepted in accumulator arrives about 2/3rds, needs emptying rate of liquid in accumulator.In accumulator, emptying rate of liquid needs the connection valve of first closing between accumulator and cooler, opens the atmospheric valve of accumulator, makes accumulator recover atmospheric pressure state, then that accumulator is emptying; After emptying, close atmospheric valve, open the connection valve between accumulator and cooler, continue to accept condensate liquid.
The defect of conventional method is, after accumulator is emptying, pressure in accumulator is normal pressure, and be vacuum state in condenser and evaporation concentrator, the aperture of the connection valve between accumulator and cooler is uncontrollable, after opening valve, greatly can reduce the vacuum of vacuum concentration system moment.Recover vacuum needed for evaporation and concentration and then need the long period, internal solvent cannot be distilled out during this period of time, and during this period of time in vacuum system and steam-heating system in running order, thus cause energy consumption and waste of time.The heat provided due to steam can not be taken away in time, and the temperature of charge in evaporation concentrator raises, and simultaneously owing to extending the Vacuum Concentration time, likely causes the heat-sensitive ingredients of active ingredient to decompose, thus reduces drug effect, even affect product quality.In traditional Chinese drug inspissation process, vacustat is kept to be letter technical barrier to be solved.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of Chinese medicinal granule concentration process vacustat control device and method, and these apparatus and method save concentration time and energy consumption.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of Chinese medicinal granule concentration process vacustat control device, concentration process carries out in vacuum concentration system, described vacuum concentration system comprises evaporation concentrator, cooler and accumulator, described device comprises the first pressure sensor, automatic regulating valve, control system, described first pressure sensor is arranged in described accumulator, described automatic regulating valve is between described cooler and described accumulator, described first pressure sensor, described automatic regulating valve is electrically connected with described control system respectively.
In a preferred embodiment of the present invention, also comprise the second pressure sensor, described second pressure sensor is arranged in described evaporation concentrator, and described second pressure sensor and described control system are electrically connected.
In a preferred embodiment of the present invention, described evaporation concentrator is efficient concentration device, haplo-effect concentrator or dual-effect concentrator.
A kind of Chinese medicinal granule concentration process vacustat control method is provided, comprising step is: after accumulator is emptying, control system starts the first pressure sensor, described first pressure sensor detects the vacuum in accumulator, testing result is fed back to described control system, and described control system controls the aperture of automatic regulating valve according to testing result.
In a preferred embodiment of the present invention, if when the fluctuation vacuum of described vacuum concentration system is greater than 4.5%, described control system turns the aperture of described automatic regulating valve down.
In a preferred embodiment of the present invention, if when the fluctuation vacuum of described vacuum concentration system is less than 2%, described control system tunes up the aperture of described automatic regulating valve.
In a preferred embodiment of the present invention, when described first pressure sensor is identical with the testing result of described second pressure sensor, the aperture of described automatic regulating valve is 100%.
In a preferred embodiment of the present invention, described control method also comprises the quantity of steam regulating evaporation concentrator, maintains evaporation concentrator temperature stabilization.
The invention has the beneficial effects as follows: Chinese medicinal granule concentration process vacustat control device of the present invention and method, by controlling the aperture of automatic regulating valve and the quantity of steam of evaporation concentrator, reduce the vacuum in concentration systems and temperature fluctuation, thus overcome many defects and the deficiency of the existence of existing concentration process, greatly save concentration time and energy consumption.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of vacuum concentration system of the present invention.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of Chinese medicinal granule concentration process vacustat control device, concentration process carries out in vacuum concentration system, described vacuum concentration system comprises evaporation concentrator 1, cooler 2 and accumulator 3, and described evaporation concentrator 1 is efficient concentration device, haplo-effect concentrator or dual-effect concentrator.Described device comprises the first pressure sensor, the second pressure sensor, automatic regulating valve, control system, described first pressure sensor is arranged in described accumulator, described second pressure sensor is arranged in described evaporation concentrator, connection valve between described cooler and described accumulator is automatic regulating valve, and described first pressure sensor, described second pressure sensor and described automatic regulating valve are electrically connected with described control system respectively.
Adopt the method that Chinese medicinal granule concentration process vacustat control device carries out, comprising step is: when accumulator needs are emptying, closes the automatic regulating valve between cooler and accumulator, opens the atmospheric valve of accumulator, emptying accumulator, cuts out the atmospheric valve of accumulator; Control system starts the first pressure sensor, described first pressure sensor detects the vacuum in accumulator, testing result is fed back to described control system, described control system controls the aperture of automatic regulating valve, to control the fluctuation vacuum of described vacuum concentration system within the specific limits according to testing result.If when the fluctuation vacuum of described vacuum concentration system is greater than 4.5%, described control system turns the aperture of described automatic regulating valve down.If when the fluctuation vacuum of described vacuum concentration system is less than 2%, described control system tunes up the aperture of described automatic regulating valve.When the vacuum of accumulator and the vacuum of evaporation concentration system are consistent, all opened by automatic regulating valve, aperture is 100%.Keep the vacuum of vacuum concentration system and temperature fluctuation lower than 5% in whole process.
Controlling model between the technological parameters such as design vacuum, valve opening, quantity of steam, control system receiving process parameter, and according to model controlling opening of valve and quantity of steam, realize the control to concentration process vacustat.
Extracting honeysuckle medicine materical crude slice 100Kg adds water after 600Kg floods 30 minutes, and decoct secondary, each 1 hour, gradation filters, and merging filtrate, at 65 ~ 75 DEG C, Vacuum Concentration to relative density is 1.20 ~ 1.25g/ml.
1, conventional method
When the solvent liquid level accepted in accumulator arrives about 2/3rds, close the connection valve between accumulator 3 and cooler 2, open the atmospheric valve of accumulator, accumulator 3 recovers atmospheric pressure state, then by emptying for accumulator 3; Open the connection valve between accumulator 3 and cooler 2, the vacuum of evaporation concentration system is down to-0.03 ~-0.04MPa instantaneously, and fluctuation vacuum is very large, records the vacuum of flush distillation concentration systems and the temperature of inspissator every 5min, test in triplicate, the results are shown in following table.
2, method of the present invention
When accumulator 3 needs emptying, close the automatic regulating valve between cooler 2 and accumulator 3, open the atmospheric valve of accumulator 3, emptying accumulator, close the atmospheric valve of accumulator, open the automatic regulating valve between cooler 2 and accumulator 3, the aperture of control valve, make the fluctuation vacuum of evaporation concentration system lower than 5%, regulate the quantity of steam of evaporation concentrator simultaneously, maintain evaporation concentrator temperature fluctuation lower than 5%, when being consistent to the vacuum of accumulator 3 and the vacuum of evaporation concentration system, automatic regulating valve is all opened.
Record the vacuum of flush distillation concentration systems, the vacuum of accumulator 3 and the temperature of inspissator every 5min, test in triplicate, result following table;
From experimental result comparison, a kind of Chinese medicinal granule concentration process vacustat control device of the present invention and method, by controlling the aperture of automatic regulating valve and the quantity of steam of evaporation concentrator, control the vacuum of system and the stability of temperature, the fluctuation of vacuum, lower than 5%, compared with conventional method, has clear superiority, effectively can maintain the stable of vacuum in concentration process, save concentration time simultaneously and save energy consumption.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. a Chinese medicinal granule concentration process vacustat control device, concentration process carries out in vacuum concentration system, described vacuum concentration system comprises evaporation concentrator, cooler and accumulator, it is characterized in that, described device comprises the first pressure sensor, automatic regulating valve, control system, described first pressure sensor is arranged in described accumulator, described automatic regulating valve is between described cooler and described accumulator, and described first pressure sensor, described automatic regulating valve are electrically connected with described control system respectively.
2. control device according to claim 1, is characterized in that, also comprises the second pressure sensor, and described second pressure sensor is arranged in described evaporation concentrator, and described second pressure sensor and described control system are electrically connected.
3. control device according to claim 1, is characterized in that, described evaporation concentrator is efficient concentration device, haplo-effect concentrator or dual-effect concentrator.
4. according to the Chinese medicinal granule concentration process vacustat control method of the arbitrary described control device of claim 1-3, it is characterized in that, comprising step is: after accumulator is emptying, control system starts the first pressure sensor, described first pressure sensor detects the vacuum in accumulator, testing result is fed back to described control system, and described control system controls the aperture of automatic regulating valve according to testing result.
5. the Chinese medicinal granule concentration process vacustat control method of control device according to claim 2, it is characterized in that, comprising step is: after accumulator is emptying, control system starts the first pressure sensor, described first pressure sensor detects the vacuum in accumulator, testing result is fed back to described control system, and described control system controls the aperture of automatic regulating valve according to testing result; When described first pressure sensor is identical with the testing result of described second pressure sensor, the aperture of described automatic regulating valve is 100%.
6. control method according to claim 4, is characterized in that, also comprises the quantity of steam regulating evaporation concentrator, maintains evaporation concentrator temperature stabilization.
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US6254734B1 (en) * | 1995-03-14 | 2001-07-03 | Hugo H Sephton | Barometric evaporation process and evaporator |
CN2544780Y (en) * | 2002-05-10 | 2003-04-16 | 郑加福 | Automatic draiage concentrator |
CN103301640B (en) * | 2013-07-10 | 2015-07-08 | 佛山德众药业有限公司 | Concentration method and device for traditional Chinese medicine extracting solution |
CN203389342U (en) * | 2013-07-10 | 2014-01-15 | 佛山德众药业有限公司 | Concentration device of traditional Chinese medicine extracting solution |
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