CN110064225B - Energy-saving system for continuously extracting traditional Chinese medicine and traditional Chinese medicine extraction method thereof - Google Patents
Energy-saving system for continuously extracting traditional Chinese medicine and traditional Chinese medicine extraction method thereof Download PDFInfo
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- CN110064225B CN110064225B CN201910316780.3A CN201910316780A CN110064225B CN 110064225 B CN110064225 B CN 110064225B CN 201910316780 A CN201910316780 A CN 201910316780A CN 110064225 B CN110064225 B CN 110064225B
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Abstract
The invention relates to the technical field of traditional Chinese medicine extraction, and provides an energy-saving system for continuously extracting traditional Chinese medicines and a traditional Chinese medicine extraction method thereof, wherein the energy-saving system comprises a heating system, a buffer tank and at least two extraction tanks; two ends of the buffer tank are respectively connected with the heating system through first pipelines; two ends of each extraction tank are respectively connected with two ends of the buffer tank in parallel through a second pipeline, and a first reversing valve and a second reversing valve are arranged at the corresponding connection position of the second pipeline and the first pipeline; a circulating pump is arranged on the first pipeline; the buffer tank is connected with each extraction tank through a third pipeline, and each third pipeline is provided with a first stop valve; a fourth pipeline is arranged between any two extraction tanks, and a second stop valve is arranged on the fourth pipeline; the invention realizes continuous extraction of the medicament and greatly improves the energy utilization rate and the extraction efficiency of the traditional Chinese medicine by directly contacting and exchanging heat of the medicament.
Description
Technical Field
The invention relates to the technical field of traditional Chinese medicine extraction, in particular to an energy-saving system for continuously extracting traditional Chinese medicines and a traditional Chinese medicine extraction method thereof.
Background
At present, the traditional Chinese medicine extraction is an important production unit for producing a traditional Chinese medicine preparation by taking an extract as a main processing raw material, and the reasonability and the advancement of an extraction process and equipment directly relate to the yield and the quality of a medicine and also relate to the energy consumption and the cost of a product.
The extraction of Chinese medicine is divided into water extraction, alcohol extraction and the like, the extraction tank is the most important part in the extraction process of Chinese medicine, and the principle is that the Chinese medicine is soaked in water and the effective components are extracted after a certain time. In the prior art, most of extraction tanks use steam as a heat source, and steam heats medicaments to release latent heat to form condensed water which is discharged, so that a large amount of steam is needed in the process of boiling and extracting traditional Chinese medicines, and the energy consumption is huge.
Disclosure of Invention
Technical problem to be solved
The invention aims to solve the problem of huge energy consumption in the traditional Chinese medicine extraction with steam as a heat source in the current extraction tank, and provides an energy-saving system for continuously extracting the Chinese medicines and a Chinese medicine extraction method thereof, so as to greatly improve the energy utilization rate and the extraction efficiency.
(II) technical scheme
In order to solve the technical problem, the invention provides an energy-saving system for continuously extracting traditional Chinese medicines, which comprises a heating system, a buffer tank and at least two extracting tanks, wherein the heating system is used for heating the traditional Chinese medicines;
two ends of the buffer tank are respectively connected with the heating system through first pipelines;
two ends of each extraction tank are respectively connected with two ends of the buffer tank in parallel through a second pipeline, and a first reversing valve and a second reversing valve are arranged at the corresponding connection position of the second pipeline and the first pipeline;
a circulating pump is arranged on the first pipeline between the first reversing valve or the second reversing valve and the heating system;
the buffer tank is connected with each extraction tank through a third pipeline, and each third pipeline is provided with a first stop valve;
and a fourth pipeline is arranged between any two extraction tanks, and a second stop valve is arranged on the fourth pipeline.
Preferably, the heating system comprises a compressor, a condenser, a throttle valve and an evaporator which are sequentially connected through pipelines to form a closed loop, wherein two ends of the buffer tank are respectively connected with two ends of the condenser through the first pipeline.
Preferably, the heating system of the present invention comprises a plurality of said condensers connected in parallel with each other, and each of said condensers is provided with one of said throttle valves connected in series therewith; and two ends of the buffer tank are respectively connected with two ends of the corresponding condenser through the first pipelines.
Preferably, at least one group of spray headers for external liquid input is arranged at the top of the inner side of the extraction tank, and the extraction tank is connected with a vacuum pump through an air pipe.
The invention also provides a traditional Chinese medicine extraction method of the energy-saving system for dynamically and continuously extracting traditional Chinese medicines, which comprises the following steps:
s1, adding a solvent into the buffer tank;
s2, closing the first stop valve and simultaneously switching the first reversing valve and the second reversing valve to heat the solvent in the buffer tank until the solvent reaches the preset temperature for extracting the traditional Chinese medicine;
s3, adding traditional Chinese medicines into each extraction tank, randomly selecting one of the extraction tanks as a first tank for medicine configuration, opening a first stop valve corresponding to the first tank, taking the rest extraction tanks sequenced in the middle and the last as a middle tank and a tail tank, and waiting for standby;
s4, extracting the traditional Chinese medicine from the first tank, and continuing to heat the solvent by S2 so that the solvent is maintained at the preset temperature for extracting the traditional Chinese medicine;
and S5, controlling the extracted medicaments in the first tank to be sequentially transferred to each intermediate tank and each tail tank in a relay mode by operating the second stop valve, and sequentially adding the Chinese medicine extraction operation to the subsequent extraction tanks receiving the extracted medicaments until all the extraction tanks synchronously extract the Chinese medicines.
Preferably, the present invention further comprises: s6, discharging the finished product from the tail tank of S5, and ending a Chinese medicinal extraction cycle consisting of S1-S6.
Preferably, the present invention further comprises: and S7, according to the Chinese medicine extraction sequence in S5, the extraction tanks which are sequenced at the second position and the first position in the previous Chinese medicine extraction period are correspondingly used as the extraction tanks which are sequenced at the first position and the last position in the next Chinese medicine extraction period, and the steps are sequentially circulated according to the rule.
Preferably, in S5 of each extraction cycle of the traditional Chinese medicine, the method further comprises the step of supplementing the solvent into the buffer tank after the extraction tank ranked as the first tank transfers the extraction medicine to the next tank.
Preferably, when the first tank is subjected to the traditional Chinese medicine extraction operation in S4, the method includes the steps of: and closing the first stop valve corresponding to the first tank, simultaneously switching the first reversing valve and the second reversing valve corresponding to the first tank, circularly heating the medicament with the volume capacity of 1/4-1/5 in the first tank by the heating system, and directly contacting and exchanging heat between the rest of the medicament in the first tank and the circularly heated medicament.
Preferably, the extraction tanks are three and are respectively a first tank, a middle tank and a tail tank, and the extraction time ratio of the first tank to the middle tank to the tail tank is 1:2: 1.
(III) advantageous effects
According to the technical scheme, the extraction medicaments are sequentially transferred among the extraction tanks in a relay manner, so that continuous extraction operation is realized, the medicament and the decoction dregs in the extraction tanks are maintained at a reasonable concentration difference, and the extraction rate is improved; meanwhile, in the process of extracting the traditional Chinese medicine, direct contact heat exchange of the medicament is realized, so that the medicament quickly meets the requirement on the extraction temperature, and compared with the traditional method of carrying out steam heating on the medicament, the method greatly improves the energy utilization rate and the extraction efficiency of the traditional Chinese medicine.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of an energy-saving system for continuously extracting traditional Chinese medicines according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of each inlet and outlet configured on the extraction tank in embodiment 2 of the present invention.
In the figure: 1-buffer tank, 21, 22, 23-circulating pump, 31, 32, 33-filter, 41, 42, 43-condenser, 51, 52, 53-extraction tank, 61, 62, 63-third pipeline, 71, 72, 73-first stop valve, 81, 82, 83-first change valve, 91, 92, 93-second change valve, 10-compressor, 11-evaporator, 121, 122, 123-throttle valve, 13-dosing port, 14-liquid inlet, 15-liquid outlet, 16-slag outlet, 171, 172, 173-fourth pipeline, 181, 182, 183-second stop valve, 19-shower head, 20-vacuum pump, 211, 212, 213-first pipeline, 221, 222, 223-second pipeline, 23-air pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1, the present embodiment provides an energy saving system for continuously extracting traditional Chinese medicine, which includes a heating system, a buffer tank and at least two extraction tanks, wherein 3 extraction tanks are specifically arranged in the present embodiment, and are sequentially extraction tanks 51, 52 and 53;
two ends of the buffer tank 1 are respectively connected with the heating system through first pipelines 211, 212 and 213;
two ends of each extracting tank are respectively connected with two ends of the buffer tank 1 in parallel through second pipelines 221, 222 and 223, and first reversing valves 81, 82 and 83 and second reversing valves 91, 92 and 93 are arranged at corresponding connection positions of the second pipelines 221, 222 and 223 and the first pipelines 211, 212 and 213;
wherein, the two switching direction channels of the first direction changing valve 81 are respectively represented by A11-B11 channels and A11-C11 channels, and the two switching direction channels of the second direction changing valve 91 are respectively represented by A21-B21 channels and A21-C21 channels; the two switch direction passages of the first diverter valve 82 are represented by passages A12-B12 and A12-C12, respectively, and the two switch direction passages of the second diverter valve 92 are represented by passages A22-B22 and A22-C22, respectively; the two switching direction passages of the first direction valve 83 are represented by passages A13-B13 and A13-C13, respectively, and the two switching direction passages of the second direction valve 93 are represented by passages A32-B32 and passages A32-C32, respectively;
circulating pumps 21, 22, 23 are respectively arranged on the first pipelines 211, 212, 213 between the first reversing valves 81, 82, 83 or the second reversing valves 91, 92, 93 and the heating system, wherein filters 31, 32, 33 are correspondingly arranged on the first pipelines 211, 212, 213;
the buffer tank 1 is connected with each extraction tank through a third pipeline 61, 62 and 63 respectively, and the third pipeline 61, 62 and 63 are correspondingly provided with a first stop valve 71, 72 and 73;
For the above energy saving system, the buffer tank 1, the circulation pump 21, the filter 31 and the heating system are respectively connected through the first pipeline 211 to form a buffer system S1 for heating the solvent in the buffer tank 1, wherein in this embodiment, water is selected as the solvent for extracting the traditional Chinese medicine; the extraction tank 51, the circulation pump 21, the filter 31 and the heating system are respectively connected by a first pipe 211 to constitute a heating extraction system E1 for heating the medicine in the extraction tank 51.
The buffer tank 1, the circulating pump 22, the filter 32 and the heating system are respectively connected through a first pipeline 212 to form a buffer system S2 for heating the solvent in the buffer tank 1; the extraction tank 52, the circulation pump 22, the filter 32, and the heating system are connected by a first pipe 212 to constitute a heating extraction system E2 for heating the medicine in the extraction tank 52.
The buffer tank 1, the circulating pump 23, the filter 33 and the heating system are respectively connected through a first pipeline 213 to form a buffer system S3 for heating the solvent in the buffer tank 1; the extraction tank 53, the circulation pump 23, the filter 33, and the heating system are connected by a first pipe 213 to constitute a heating extraction system E3 for heating the medicine in the extraction tank 53.
In the working process of the energy-saving system, at the initial stage, a normal-temperature solvent is added into the tank body through a liquid inlet on the buffer tank 1, the buffer systems S1, S2 and S3 are started, and the solvent is heated, and the energy-saving system is specifically operated as follows:
the first direction switching valves 81, 82, 83 and the second direction switching valves 91, 92, 93 are switched, and the first cut valves 71, 72, 73 are ensured to be in the closed state, so that the solvent in the buffer tank 1 can respectively pass through the A21-B21 channel of the second direction valve 91, the A22-B22 channel of the second direction valve 92 and the A32-B32 channel of the second direction valve 93, via circulation pumps 21, 22, 23 and filters 31, 32, 33, respectively into the heat exchange channels of condensers 41, 42, 43, after the solvent absorbs the latent heat of the working medium in the heat exchange channels of the condensers 41, 42 and 43 to increase the temperature, then returns to the buffer tank 1 through the A11-B11 channel of the first reversing valve 81, the A12-B12 channel of the first reversing valve 82 and the A13-B13 channel of the first reversing valve 83, heating the solvent in a circulating manner until the solvent in the buffer tank 1 reaches the preset temperature for extracting the traditional Chinese medicine;
then, adding the traditional Chinese medicines into the extraction tanks 51, 52 and 53 respectively, randomly selecting the extraction tank 51 as a first tank for extracting the traditional Chinese medicines, opening the first stop valve 71 to allow the solvent in the buffer tank 1 to enter the extraction tank 51 to obtain a medicament, and sequentially using the extraction tank 52 and the extraction tank 53 as a middle tank and a tail tank for extracting the traditional Chinese medicines and waiting for standby;
then, the extraction tank 51 performs the operation of extracting the traditional Chinese medicine for the first time, and the specific operations are as follows: closing the first stop valve 71, simultaneously switching the first reversing valve 81 and the second reversing valve 91, closing the buffer system S1, starting the heating and extracting system E1, and circularly heating the medicament in the extracting tank 51 by the heating system;
in the process, adding a new solvent into the buffer tank 1, starting the buffer systems S2 and S3, and continuously heating the solvent to maintain the solvent at the preset temperature for extracting the traditional Chinese medicine;
then, when the concentration of the medicine reaches the set concentration, the second cut-off valve 181 is opened to transfer the extracted medicine in the extraction tank 51 to the extraction tank 52; opening the first stop valve 71 to replenish the solvent in the extraction tank 51; at the same time, the heating and extracting systems E1 and E2 are turned on, E3 is turned off, namely the buffer systems S1 and S2 are correspondingly turned off, S3 is started, new solvent is added into the buffer tank 1 and the circulation heating is carried out through the buffer system S3; after the extraction tank 51 and the extraction tank 52 are extracted for a period of time, the second stop valve 182 is opened, the extraction medicine in the extraction tank 52 is transferred to the extraction tank 53, the extraction medicine in the extraction tank 51 is transferred to the extraction tank 52, the heating extraction systems E1, E2 and E3 are simultaneously opened, the extraction tanks 51, 52 and 53 simultaneously perform traditional Chinese medicine extraction operations, new solvent is added into the buffer tank 1, and heating is performed for waiting.
As can be seen from the above, in the working process of the energy saving system of the embodiment, the solvent in the buffer tank is heated by the buffer system, and the medicine in the extraction tank is heated by the heating and extraction system, so as to extract the traditional Chinese medicine; the extraction medicaments are sequentially transferred among the extraction tanks in a relay manner, and are sequentially added from the extraction tanks for extraction operation, so that the medicament and the decoction dregs in the extraction tanks are maintained at a reasonable concentration difference, and the extraction rate is improved; in addition, in the process of extracting the traditional Chinese medicine, the circularly heated medicine is in contact heat exchange with the residual medicine in each extraction tank by switching the first reversing valve or the second reversing valve, so that the medicine quickly meets the requirement on the extraction temperature, and compared with the traditional mode of steam heating the medicine, the system greatly improves the energy utilization rate and the traditional Chinese medicine extraction efficiency; meanwhile, in the traditional Chinese medicine extraction process, the heating system, the circulating pump and related equipment are always in an operating state, so that the damage of the equipment caused by frequent starting is effectively avoided.
Further, in this embodiment, the heating system includes a compressor 10, a condenser, a throttle valve and an evaporator 11 which are sequentially connected through a pipeline to form a closed loop, wherein two ends of the buffer tank 1 are respectively connected with two ends of the condenser through the first pipelines 211, 212 and 213.
As is known, a condenser includes a shell and a heat exchange tube located in the shell, a working medium (refrigerant) circulates in the heat exchange tube, and an interlayer space between the shell and the heat exchange tube is used as a heat exchange channel for another fluid. For the present embodiment, when the buffer systems S1, S2, and S3 start operating, the fluid flowing through the heat exchange channel is a solvent, and the solvent is specifically water; when the heating extraction systems E1, E2 and E3 are activated, the fluid flowing through the heat exchange channels is a medicament.
When the heating system works circularly, working medium (refrigerant) absorbs low-grade air energy of the external environment in the evaporator 11, the temperature and enthalpy of the working medium are improved through the compressor 10, then the working medium flows through the heat exchange tubes in the condenser to release latent heat in the condenser, and solvent or medicament in the heat exchange channels absorbs the latent heat released by the heat exchange tubes through heat exchange; the working medium after releasing latent heat correspondingly enters the evaporator 11 after being cooled and depressurized through the throttle valve, and then the evaporator 11 absorbs low-grade air energy in the environment, thereby completing a cycle.
Therefore, the heating system described in this embodiment makes full use of the low-grade air energy in the environment, and converts the low-grade air energy into heat energy, thereby realizing the supply of heat required by the solvent and the medicament in the process of extracting the traditional Chinese medicine.
Further, the heating system in this embodiment includes a plurality of condensers 41, 42, 43 connected in parallel, and each condenser 41, 42, 43 is provided with a throttle valve 121, 122, 123 connected in series; two ends of the buffer tank 1 are correspondingly connected with two ends of the condensers 41, 42 and 43 through the first pipelines 211, 212 and 213 respectively.
Therefore, the heat exchange efficiency of each condenser connected with each throttle valve in series can be controlled in real time by controlling the opening of each throttle valve, so that the temperature of a solvent in the buffer tank and the temperature of a medicament in each extraction tank are further controlled in real time by the buffer system and the heating extraction system, and particularly, the opening of 3 throttle valves is consistent in the starting stage of Chinese medicine extraction; when the extracted medicaments are sequentially transferred among different extraction tanks in a relay mode, the buffer system and the heating extraction system work in parallel, the opening degree of a throttle valve on a heating extraction system loop is far smaller than that of a throttle valve on a buffer system loop, and the opening degree of the throttle valve on the buffer system loop is gradually reduced along with the temperature rise of a solvent in the buffer tank; finally, when the traditional Chinese medicine extraction operation is carried out on each extraction tank at the same time, the opening degrees of the three throttle valves tend to be consistent.
Example 2
This example is based on the energy saving system described in example 1, and further improves the extraction tank. Referring to fig. 2, the extraction tank is provided with a medicine adding port 13 for adding traditional Chinese medicines, a liquid inlet 14 for adding a solvent into the extraction tank or for returning a medicine for heating circulation, a liquid outlet 15 for outputting the extracted medicine, and a residue discharging port 16 for discharging residues; at least one group of spray heads 19 are arranged at the top of the inner side of the extraction tank, the spray heads 19 are connected with the liquid inlet 14, wherein 2-3 groups of spray heads 19 can be specifically arranged, and the spray heads 19 are arranged for ensuring that the circularly heated medicament is in full contact heat exchange with the residual medicament in the extraction tank, so that the extraction efficiency of the traditional Chinese medicine is improved.
Further, the diameter of the spray opening on the spray header 19 in this embodiment is 3-5 mm.
Further, the extraction tank in this embodiment is further configured with a vacuum pump 20, the vacuum pump 20 is communicated with the tank body of the extraction tank through an air pipe 23, wherein the vacuum pump 20 is configured to maintain the air pressure in the extraction tank in a negative pressure state, which increases the driving force for the effective components in the traditional Chinese medicine to permeate into the medicine, and makes the medicine in a boiling state at a lower extraction temperature, thereby further improving the extraction efficiency of the traditional Chinese medicine; meanwhile, the damage of high-temperature extraction to effective components in the medicament is effectively avoided.
Example 3
The embodiment is based on the energy saving system described in embodiment 1-2, and specifically relates to a traditional Chinese medicine extraction method of a continuous traditional Chinese medicine extraction energy saving system, which includes:
s1, adding a solvent into the buffer tank;
s2, closing the first stop valve and simultaneously switching the first reversing valve and the second reversing valve to heat the solvent in the buffer tank until the solvent reaches the preset temperature for extracting the traditional Chinese medicine;
s3, adding traditional Chinese medicines into each extraction tank, randomly selecting one of the extraction tanks as a first tank for medicine configuration, opening a first stop valve corresponding to the first tank, taking the rest extraction tanks sequenced in the middle and the last as a middle tank and a tail tank, and waiting for standby;
s4, extracting the traditional Chinese medicine from the first tank, and continuing to heat the solvent by S2 so that the solvent is maintained at the preset temperature for extracting the traditional Chinese medicine;
and S5, controlling the extracted medicaments in the first tank to be sequentially transferred to each intermediate tank and each tail tank in a relay mode by operating the second stop valve, and sequentially adding the Chinese medicine extraction operation to the subsequent extraction tanks receiving the extracted medicaments until all the extraction tanks synchronously extract the Chinese medicines.
The method for extracting the traditional Chinese medicine described in S1-S5 sequentially completes the process operations of heating the solvent, preparing the medicine, heating the medicine and extracting the traditional Chinese medicine, and in the process, realizes continuous extraction of the medicine by each extraction tank, not only greatly improves the utilization rate of energy, but also maintains reasonable concentration difference between the medicine and medicine dregs in the extraction tank, and improves the extraction rate.
Further, this embodiment further includes: s6, discharging the finished product from the tail tank of S5, and ending a traditional Chinese medicine extraction cycle consisting of S1-S6;
and S7, according to the Chinese medicine extraction sequence in S5, the extraction tanks which are sequenced at the second position and the first position in the previous Chinese medicine extraction period are correspondingly used as the extraction tanks which are sequenced at the first position and the last position in the next Chinese medicine extraction period, and the steps are sequentially circulated according to the rule.
Therefore, the solution described in this embodiment further realizes dynamic uninterrupted extraction operation by each extraction tank on the basis of continuous extraction of the medicines, that is, when three extraction tanks are provided in this embodiment and are respectively the extraction tanks 51, 52, and 53 described in embodiment 1, in the first extraction cycle of the traditional Chinese medicine, the sequence of extraction operations performed on the traditional Chinese medicine is as follows: based on the extraction method described in this embodiment S7, in the second and third extraction cycles of the traditional Chinese medicine, the sequence of extraction operations performed on the traditional Chinese medicine is: the extraction tank 52 → the extraction tank 53 → the extraction tank 51 and the extraction tank 53 → the extraction tank 51 → the extraction tank 52, so that the continuous dynamic extraction is repeatedly carried out uninterruptedly, and the extraction efficiency of the traditional Chinese medicine is greatly improved.
Further, in this embodiment, in S5 of each extraction cycle of the chinese traditional medicine, after the extraction tank ranked as the first position transfers the extraction medicine to the extraction tank next to the first position, the method further includes the step of replenishing the solvent to the buffer tank. By replenishing the solvent in the buffer tank in this step, not only is the consumption of the solvent in the buffer tank filled, but also the preparation for the traditional Chinese medicine extraction operation in the middle tank and the tail tank which are arranged in the following sequence is made.
Further, in this embodiment, when the operation of extracting the traditional Chinese medicine from the first tank is performed in S4, the method includes the steps of: and closing the first stop valve corresponding to the first tank, simultaneously switching the first reversing valve and the second reversing valve corresponding to the first tank, circularly heating the medicament with the volume capacity of 1/4-1/5 in the first tank by the heating system, and directly contacting and exchanging heat between the rest of the medicament in the first tank and the circularly heated medicament. The mode of carrying out the direct contact heat transfer through adopting the medicament heats the medicament for the medicament can reach the requirement to extracting the temperature fast, compares in traditional mode of carrying out steam heating to the medicament, has improved energy utilization and traditional chinese medicine extraction efficiency greatly.
Further, in this embodiment, the extraction tanks are provided with three extraction tanks, namely a first tank, a middle tank and a tail tank, and the extraction time ratio of the first tank to the middle tank to the tail tank is 1:2:1, that is, when the extraction time set for the first tank is 30 minutes, the extraction time set for the middle tank and the tail tank is 60 minutes and 30 minutes in sequence. Meanwhile, the extraction time of the three extraction tanks is set as above, so that the full utilization of energy in the continuous dynamic extraction process is ensured, and the medicine dregs in the extraction tanks are maintained at a reasonable concentration difference, so that the extraction efficiency is further improved, and the extraction amount of the finished medicine is correspondingly increased.
Example 4
The embodiment is based on the energy-saving system described in embodiment 1-2, and specifically relates to an application of a continuous traditional Chinese medicine extraction energy-saving system, and the energy-saving system is not only used for traditional Chinese medicine extraction, but also can be applied to traditional Chinese medicine cooking, water extraction, alcohol extraction and other processes.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An energy-saving system for continuously extracting traditional Chinese medicines is characterized by comprising a heating system, a buffer tank and at least two extracting tanks;
two ends of the buffer tank are respectively connected with the heating system through first pipelines;
two ends of each extraction tank are respectively connected with two ends of the buffer tank in parallel through a second pipeline, and a first reversing valve and a second reversing valve are arranged at the corresponding connection position of the second pipeline and the first pipeline;
a circulating pump is arranged on the first pipeline between the first reversing valve or the second reversing valve and the heating system;
the buffer tank is connected with each extraction tank through a third pipeline, and each third pipeline is provided with a first stop valve;
and a fourth pipeline is arranged between any two extraction tanks, and a second stop valve is arranged on the fourth pipeline.
2. The energy-saving system for continuously extracting traditional Chinese medicine according to claim 1, wherein the heating system comprises a compressor, a condenser, a throttle valve and an evaporator which are sequentially connected through pipelines to form a closed loop, wherein two ends of the buffer tank are respectively connected with two ends of the condenser through the first pipeline.
3. The energy-saving system for continuously extracting traditional Chinese medicine according to claim 2, wherein the heating system comprises a plurality of condensers which are connected in parallel, and each condenser is provided with a throttle valve connected in series with the condenser; and two ends of the buffer tank are respectively connected with two corresponding ends of the condenser through the first pipelines.
4. The energy-saving system for continuously extracting traditional Chinese medicine according to claim 1, 2 or 3, wherein the top of the inner side of the extracting tank is provided with at least one group of spray headers for external liquid input, the spray headers are connected with the second pipeline, and the extracting tank is connected with a vacuum pump through an air pipe.
5. The method for extracting traditional Chinese medicine of the energy-saving system for continuously extracting traditional Chinese medicine according to any one of claims 1 to 4, is characterized by comprising the following steps:
s1, adding a solvent into the buffer tank;
s2, closing the first stop valve and simultaneously switching the first reversing valve and the second reversing valve to heat the solvent in the buffer tank until the solvent reaches the preset temperature for extracting the traditional Chinese medicine;
s3, adding traditional Chinese medicines into each extraction tank, randomly selecting one of the extraction tanks as a first tank for medicine configuration, opening a first stop valve corresponding to the first tank, taking the rest extraction tanks sequenced in the middle and the last as a middle tank and a tail tank, and waiting for standby;
s4, extracting the traditional Chinese medicine from the first tank, and continuing to heat the solvent by S2 so that the solvent is maintained at the preset temperature for extracting the traditional Chinese medicine;
and S5, controlling the extracted medicaments in the first tank to sequentially transfer to the middle tank and the tail tank in a relay manner by operating the second stop valve, and sequentially adding the Chinese medicine extraction operation to the subsequent extraction tanks receiving the extracted medicaments until all the extraction tanks synchronously extract the Chinese medicines.
6. The method of claim 5, further comprising:
s6, discharging the finished product from the tail tank of S5, and ending a Chinese medicinal extraction cycle consisting of S1-S6.
7. The method of claim 6, further comprising:
and S7, according to the Chinese medicine extraction sequence in S5, the extraction tanks which are sequenced at the second position and the first position in the previous Chinese medicine extraction period are correspondingly used as the extraction tanks which are sequenced at the first position and the last position in the next Chinese medicine extraction period, and the steps are sequentially circulated according to the rule.
8. The method of claim 7, wherein in S5 of each cycle of extracting Chinese medicinal materials, the extraction pot ranked as the first pot further comprises the step of adding a solvent to the buffer pot after transferring the extracted medicinal material to the next pot.
9. The method as claimed in claim 5, wherein the step of heating the medicament is performed when the first canister is subjected to the chinese medicine extracting operation in S4: and closing the first stop valve corresponding to the first tank, simultaneously switching the first reversing valve and the second reversing valve corresponding to the first tank, circularly heating the medicament with the volume capacity of 1/4-1/5 in the first tank by the heating system, and directly contacting and exchanging heat between the rest of the medicament in the first tank and the circularly heated medicament.
10. The method according to any one of claims 5 to 9, wherein the extraction tanks are provided in three, a head tank, a middle tank and a tail tank, and the extraction time ratio of the head tank, the middle tank and the tail tank is 1:2: 1.
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| CN110064225B true CN110064225B (en) | 2021-04-06 |
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