CN105446371A - Metering control method of traditional Chinese medicine extraction solvent - Google Patents
Metering control method of traditional Chinese medicine extraction solvent Download PDFInfo
- Publication number
- CN105446371A CN105446371A CN201510912116.7A CN201510912116A CN105446371A CN 105446371 A CN105446371 A CN 105446371A CN 201510912116 A CN201510912116 A CN 201510912116A CN 105446371 A CN105446371 A CN 105446371A
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- CN
- China
- Prior art keywords
- solvent
- chinese medicine
- traditional chinese
- control method
- medicine extraction
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The invention discloses a metering control method of a traditional Chinese medicine extraction solvent. The metering control method comprises the steps: adding a solvent in a traditional Chinese medicine extraction pot, wherein Q=0.25Pid2*v; Q is the flow of the solvent; Pi=3.14; d is the diameter of a solvent inlet pipeline; and v is the flow velocity of the solvent; and stopping adding the solvent when Va=V-Vr, wherein Va is the addition of the accumulated solvents; when Va=ta*Q, ta is the total add time of the solvent; and Vr=tr*Q, tr is the response time of a solvent valve. Through the above mode, the metering control method of a traditional Chinese medicine extraction solvent aims to solve the technical problem that the addition of an existing traditional Chinese medicine extraction solvent is not accurate, realizes accurate metering control of the traditional Chinese medicine extraction solvent, reduces the difference between batches during the extraction process of traditional Chinese medicines, and provides a new technology for improvement of quality stabilization of traditional Chinese medicine products and modernization of traditional Chinese medicines.
Description
Technical field
The present invention relates to the extracting technique of Chinese medicine field in herbal pharmaceutical, particularly relate to a kind of measurement control method of traditional Chinese medicine extraction solvent.
Background technology
Extraction of traditional Chinese medicine is the mass transport process that solute permeates from solid phase medicinal material high concentration to liquid phase low concentration, it extracts and leaches the concentration difference that diffusive force derives from effective constituent in Extraction solvent and solid phase medicinal material tissue, concentration difference is larger, the power of diffusion mass transfer is larger, leaching velocity is faster, and effective constituent leaching rate is larger.In the leaching process of Effective Component of Chinese Medicine, the extraction ratio of effective constituent should be guaranteed, ensure the quality stability of different batches extract again.If Extraction solvent addition is unstable, likely cause the loss that effective constituent is larger.At present, the solvent measure control of extraction of traditional Chinese medicine generally adopts solenoid control, because solenoid valve self exists the response time, the addition error of solvent can be caused comparatively large, affect the extraction ratio of effective constituent, affect stability and the homogeneity of end product quality.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of measurement control method of traditional Chinese medicine extraction solvent, the problem such as Extraction solvent fixing fabric structure out of true in current extraction of traditional Chinese medicine can be solved, for the solvent metering in extraction of traditional Chinese medicine, realize the accurate control of Extraction solvent metering and volume.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the measurement control method providing a kind of traditional Chinese medicine extraction solvent, described measurement control method carries out in Chinese medicine extracting tank, comprising step is: (1) adds solvent in described Chinese medicine extracting tank, and the flow of described solvent is Q=0.25 π d
2v, wherein π=3.14, d is solvent feed conduit diameter, and v is the flow velocity of solvent; (2) as the addition V of accumulation solvent
a=V-V
rtime, stop adding solvent, the wherein addition V of accumulation solvent
a=t
aq, t
afor total joining day of solvent, V
r=t
rq, t
rfor the response time of solvent valve.
In a preferred embodiment of the present invention, described Chinese medicine extracting tank comprises tank body, solid material charging aperture, solvent valve, flowmeter and solvent feed conduit.
In a preferred embodiment of the present invention, the response time t of described solvent valve
rrefer to the time that the signal sending solvent valve closedown is closed to solvent valve.
In a preferred embodiment of the present invention, before described solvent adds in step (1), clean for Chinese medicine medicine materical crude slice is dropped in described Chinese medicine extracting tank.
In a preferred embodiment of the present invention, the flow velocity v of described solvent is measured by flowmeter.
The invention has the beneficial effects as follows: the measurement control method of traditional Chinese medicine extraction solvent of the present invention, be intended to solve the inaccurate technical barrier of current traditional Chinese medicine extraction amount of solvent, achieve the accurate measure control of traditional Chinese medicine extraction solvent, reduce otherness between extraction of traditional Chinese medicine batch, for improving tcm product steady quality and the modernization of Chinese medicine provides new technology.
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 control flow chart of measurement control method one preferred embodiment of traditional Chinese medicine extraction solvent of the present invention.
Embodiment
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, provide a kind of measurement control method of traditional Chinese medicine extraction solvent, described measurement control method carries out in Chinese medicine extracting tank, comprises step and is:
Described Chinese medicine extracting tank comprises tank body, solid material charging aperture, solvent valve, flowmeter and solvent feed conduit, and wherein solvent valve and flow count commercially available prod.Control system controls Chinese medicine extracting tank.
(1) described Chinese medicine extracting tank adopts solvent valve, the response time of solvent valve is 3s, the diameter of solvent feed conduit is 10cm, wherein the response time of solvent valve first opens solvent valve, then control system provides the signal of closing solvent valve, record is issued to the time needed for solvent valve closedown from signal, is the response time t of solvent valve
r; Open solid material charging aperture, clean for Chinese medicine medicine materical crude slice is dropped in Chinese medicine extracting tank, after adding, close solid material charging aperture;
(2) in control system, the cumulative volume V of setting solvent is 2000L, flowmeter resets, and control system opens solvent valve and flowmeter automatically, and solvent enters extractor through flowmeter and solvent valve, wherein flowmeter survey solvent flow velocity be 3m/s, the flow Q=0.25 π d of solvent
2v=7.5L/s;
(3) the addition V of control system accumulation solvent
a=7.5t
a, wherein t
afor the joining day of solvent;
(4) control system provides and closes solvent valve signal, and solvent valve needs response time 3s to close, system-computed solvent valve spillway discharge V
r=t
rq=22.5L;
(5) accumulation solvent adding amount V
a=V-V
rtime, control system closes solvent valve automatically, stops liquid feeding;
(6) liquid meter in extractor is released, obtain the actual addition V of solvent
real.
Repeat step (1) ~ (6) three times, V
realand the gap between V, as shown in the table:
| V | V Real | Deviation | |
| 1 | 2000L | 2001L | 0.5‰ |
| 2 | 2000L | 2002L | 1‰ |
| 3 | 2000L | 1998L | 1‰ |
As seen from the above table, the deviation that the measurement control method of a kind of traditional Chinese medicine extraction solvent of the present invention can realize Extraction solvent is less than 1 ‰, and the accurate measurement realizing Extraction solvent controls.
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 (5)
1. a measurement control method for traditional Chinese medicine extraction solvent, is characterized in that, described measurement control method carries out in Chinese medicine extracting tank, comprises step to be:
(1) in described Chinese medicine extracting tank, add solvent, the flow of described solvent is Q=0.25 π d
2v, wherein π=3.14, d is solvent feed conduit diameter, and v is the flow velocity of solvent;
(2) as the addition V of accumulation solvent
a=V-V
rtime, stop adding solvent, the wherein addition V of accumulation solvent
a=t
aq, t
afor total joining day of solvent, V
r=t
rq, t
rfor the response time of solvent valve.
2. the measurement control method of traditional Chinese medicine extraction solvent according to claim 1, is characterized in that, described Chinese medicine extracting tank comprises tank body, solid material charging aperture, solvent valve, flowmeter and solvent feed conduit.
3. the measurement control method of traditional Chinese medicine extraction solvent according to claim 1, is characterized in that, the response time t of described solvent valve
rrefer to the time that the signal sending solvent valve closedown is closed to solvent valve.
4. the measurement control method of traditional Chinese medicine extraction solvent according to claim 1, is characterized in that, before described solvent adds in step (1), is dropped in described Chinese medicine extracting tank by clean for Chinese medicine medicine materical crude slice.
5. the measurement control method of traditional Chinese medicine extraction solvent according to claim 1, is characterized in that, the flow velocity v of described solvent is measured by flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510912116.7A CN105446371A (en) | 2015-12-11 | 2015-12-11 | Metering control method of traditional Chinese medicine extraction solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510912116.7A CN105446371A (en) | 2015-12-11 | 2015-12-11 | Metering control method of traditional Chinese medicine extraction solvent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105446371A true CN105446371A (en) | 2016-03-30 |
Family
ID=55556691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510912116.7A Pending CN105446371A (en) | 2015-12-11 | 2015-12-11 | Metering control method of traditional Chinese medicine extraction solvent |
Country Status (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871401A (en) * | 2009-04-21 | 2010-10-27 | 日立汽车系统株式会社 | The fuel injection control system of internal-combustion engine and method |
| US7971604B2 (en) * | 2006-04-20 | 2011-07-05 | Hitachi Metals, Ltd. | Flow controller delivery of a specified-quantity of a fluid |
| CN102498276A (en) * | 2009-09-18 | 2012-06-13 | 罗伯特·博世有限公司 | Method and control unit for operating a valve |
| CN103055537A (en) * | 2013-01-09 | 2013-04-24 | 江苏七O七天然制药有限公司 | Full-automatic percolating device for extracting effective components of traditional Chinese medicine, and percolating method thereof |
| CN203493930U (en) * | 2013-10-25 | 2014-03-26 | 漳州片仔癀药业股份有限公司 | Traditional Chinese medicine extraction process production device |
-
2015
- 2015-12-11 CN CN201510912116.7A patent/CN105446371A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7971604B2 (en) * | 2006-04-20 | 2011-07-05 | Hitachi Metals, Ltd. | Flow controller delivery of a specified-quantity of a fluid |
| CN101871401A (en) * | 2009-04-21 | 2010-10-27 | 日立汽车系统株式会社 | The fuel injection control system of internal-combustion engine and method |
| CN102498276A (en) * | 2009-09-18 | 2012-06-13 | 罗伯特·博世有限公司 | Method and control unit for operating a valve |
| CN103055537A (en) * | 2013-01-09 | 2013-04-24 | 江苏七O七天然制药有限公司 | Full-automatic percolating device for extracting effective components of traditional Chinese medicine, and percolating method thereof |
| CN203493930U (en) * | 2013-10-25 | 2014-03-26 | 漳州片仔癀药业股份有限公司 | Traditional Chinese medicine extraction process production device |
Non-Patent Citations (1)
| Title |
|---|
| 李亮 等: "流量法印染助剂自动配送系统的设计与实现", 《现代纺织技术》 * |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160330 |
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| RJ01 | Rejection of invention patent application after publication |