Oil-water separation equipment for medicine extraction

Abstract

The utility model provides oil-water separation equipment for medicine extraction, and relates to the field of traditional Chinese medicine component extraction equipment. The oil-water separation equipment for medicine extraction comprises a distillation device; the condenser is communicated with the gas outlet pipe of the distillation device; the oil-water separator is arranged below the condenser and at least comprises a separator shell made of a transparent material; the condensate pipe is arranged on the top wall, is communicated with the condenser and the separator shell and is provided with a condensate valve; the oil collecting short pipe is arranged on the bottom wall, one end of the oil collecting short pipe extends into the separator shell by a certain height, and the other end of the oil collecting short pipe extends out from the lower part and is provided with a first oil collecting valve; one end of the water outlet pipe is arranged on the bottom wall of the separator shell and is communicated with the interior of the separator shell, and the other end of the water outlet pipe is communicated with a liquid inlet pipe of the distillation device through a water return pipe and is provided with a first water outlet valve; according to the utility model, the residual water phase is recycled while the water phase is prevented from entering the extracted oil to influence the purity of the extracted oil.

Description

Technical Field

[0001] The utility model relates to the field of Chinese medicine component extraction equipment, in particular to medicine extraction oil-water separation equipment. Background Art

[0002] Oil-water separation and extraction of traditional Chinese medicine is an important extraction technology used to extract volatile oil components from traditional Chinese medicine. These volatile oil components have important medicinal value, but they are easily evaporated with water vapor during the traditional extraction process, resulting in low extraction efficiency. Therefore, the oil-water separation and extraction of traditional Chinese medicine generally requires pretreatment, extraction, evaporation, condensation, oil-water separation, collection, purification and drying, and then it can be stored and used.

[0003] The oil-water separation equipment used in the drug extraction process was originally designed to separate the oil and water in the extract. Existing oil-water separation equipment is usually a comprehensive equipment, including a functional set of the above-mentioned evaporation, condensation, oil-water separation, collection and other steps. Therefore, oil-water separation equipment is crucial to ensure the purity and extraction efficiency of drug components. Existing oil-water separation equipment focuses more on improving the extraction efficiency, but there is still a problem of insufficient purity of the extracted oil. This is mainly due to improper control of the oil-water interface during the oil-water separation process, resulting in more water in the extracted oil, introducing impurities, or more extracted oil remaining in the water and being discharged, resulting in waste of drug components. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art that improper control of the oil-water interface during the oil-water separation process causes more water in the extracted oil, introduces impurities and causes insufficient purity of the extracted oil, and more extracted oil remains in the water and is discharged, causing waste of drug components. The utility model provides a drug extraction oil-water separation device which can reduce the waste of drug components and improve the purity of the extracted oil.

[0005] The technical solution adopted by the utility model is:

[0006] A drug extraction oil-water separation device, comprising:

[0007] A distillation apparatus for distilling a drug extract into a gas mixture;

[0008] a condenser, connected to the gas outlet pipe of the distillation device, for condensing the gas mixture into an oil-water mixture; and

[0009] An oil-water separator is arranged below the condenser, and the oil-water separator at least comprises:

[0010] A separator housing, made of transparent material;

[0011] a condensate pipe, arranged on the top wall of the separator shell, connecting the condenser and the separator shell, and a condensate valve is arranged on the condensate pipe;

[0012] an oil collecting short pipe, arranged on the bottom wall of the separator housing, one end of which extends into the separator housing to a certain height, and the other end of which extends from the bottom of the separator housing, and a first oil collecting valve is arranged on the oil collecting short pipe; and

[0013] A water outlet pipe, one end of which is arranged on the bottom wall of the separator shell and communicated with the interior of the separator shell, and the other end of which is connected to the liquid inlet pipe of the distillation device through a return pipe, and a first water outlet valve is arranged on the water outlet pipe.

[0014] Furthermore, the oil-water separator at least has:

[0015] A short adding pipe is arranged at the top of the separator shell and is used for adding the water phase.

[0016] Furthermore, the oil-water separator at least has:

[0017] A short gas balance pipe is arranged on the top of the separator shell and is used to balance the gas pressure in the separator shell.

[0018] Furthermore, the oil-water separator at least has a protection component, and the protection component includes:

[0019] A first flange and a second flange are respectively arranged on the top wall and the bottom wall of the separator housing; and

[0020] A plurality of protection rods are connected between the first flange and the second flange and are located outside the side wall of the separator housing.

[0021] Furthermore, threads are provided at both ends of the protection rod, and the protection rod is fixed to the first flange and the second flange on both sides through matching nuts.

[0022] Furthermore, the oil collecting short pipe is made of transparent material.

[0023] Furthermore, the oil-water separator at least has:

[0024] A Y-shaped tee, made of transparent material, the outlet of which is connected to one end of the oil collecting short pipe extending from the bottom of the separator housing;

[0025] The second oil collecting valve and the third oil collecting valve are respectively arranged on the first outlet and the second outlet of the Y-shaped tee; and

[0026] A water distribution pipe, one end of which is connected to the second outlet of the Y-shaped tee, and the other end of which is connected to the water outlet pipe, and the connection point is below the first water outlet valve.

[0027] Furthermore, the oil-water separator at least has:

[0028] The second water outlet valve is arranged on the water outlet pipe and is located below the connection point between the water branch pipe and the water outlet pipe.

[0029] Furthermore, an oblique cut is provided at one end of the oil collecting short pipe extending into the separator housing.

[0030] Furthermore, the water outlet pipe is connected to a drain pipe, and a drain valve is provided on the drain pipe.

[0031] The beneficial effects of the utility model are:

[0032] 1. The utility model provides a transparent separator shell on the oil-water separator for observation, cooperates with the condensate valve provided on the condensate pipe, the first water outlet valve on the water outlet pipe and the first oil collecting valve on the oil collecting pipe for control, and the water outlet pipe is connected to the liquid inlet pipe, thereby preventing the water phase from entering the extracted oil and affecting its purity, and realizing the recycling of the remaining water phase, thereby solving the problem that the oil-water separation equipment in the prior art, due to improper control of the oil-water interface during the oil-water separation process, leads to the extraction of more water in the oil, introduces impurities, and the purity of the extracted oil is insufficient, and more extracted oil is left in the water and discharged, resulting in waste of drug components. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is a structural schematic diagram of the oil-water separation device of an embodiment of the utility model;

[0035] Figure 2 It is a three-dimensional schematic diagram of a condenser and an oil-water separator according to an embodiment of the utility model;

[0036] Figure 3 It is a three-dimensional schematic diagram of a distillation device according to an embodiment of the utility model;

[0037] Figure 4 A three-dimensional perspective view of an oil-water separator according to an embodiment of the utility model;

[0038] Figure 5 This is a structural schematic diagram of the oil-water separation device of the second embodiment of the utility model.

[0039] Reference numerals: 100 - distillation device, 110 - liquid inlet pipe, 111 - liquid inlet valve, 120 - gas outlet pipe, 121 - gas outlet valve, 130 - explosion-proof door, 140 - pressure gauge;

[0040] 200-condenser;

[0041] 300-oil-water separator, 310-separator shell, 320-condensate pipe, 330-gas balance short pipe, 340-addition short pipe, 321-condensate valve, 350-oil collecting short pipe, 351-first oil collecting valve, 352-Y-type tee, 353-second oil collecting valve, 354-water distribution pipe, 355-third oil collecting valve, 360-outlet pipe, 364-return pipe, 366-drain pipe, 367-drain valve, 368-first outlet valve, 369-second outlet valve, 382-first flange, 384-protective rod, 386-second flange. DETAILED DESCRIPTION

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0044] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0045] See also Figure 1-Figure 4 This embodiment provides a drug extraction oil-water separation device, which is used to simultaneously perform the steps of evaporation, condensation, oil-water separation and collection in the oil-water separation extraction of traditional Chinese medicine. The drug extraction oil-water separation device mainly includes: a distillation device 100, a condenser 200 and an oil-water separator 300.

[0046] The distillation device 100 is used to distill the drug extract into a gas mixture. Since the extracted oil component with medicinal value in the Chinese herbal medicine is mainly volatile oil, and the Chinese herbal medicine will carry its own moisture and added water solvent during the pretreatment and extraction process, the gas mixture is a mixed gas of extracted oil vapor and water vapor. Figure 1 , Figure 3 As shown in , the distillation device 100 is roughly cylindrical in shape, and its upper and lower ends are set to be semi-ellipsoidal in shape. The top of the distillation device 100 is provided with a liquid inlet pipe 110, an air outlet pipe 120 and a pressure gauge 140, etc. Among them, the liquid inlet pipe 110 is used to pass the drug extract, and the impurities and part of the water phase are removed through the heating distillation inside the distillation device 100, and then the gas mixture is discharged through the air outlet pipe 120, and the liquid inlet pipe 110 is provided with a liquid inlet valve 111 to control its opening and closing, and the air outlet pipe 120 is provided with an air outlet valve 121 to control its opening and closing. The pressure gauge 140 is provided for the user to monitor and check the pressure inside the distillation device 100. In order to deal with the situation where the pressure suddenly increases and the user fails to monitor and deal with it in time, an explosion-proof pressure relief structure is also provided. In this embodiment, the explosion-proof pressure relief structure is an explosion-proof door 130, which is used to protect the safety of the distillation device 100 in the event of an accidental explosion. When the internal pressure exceeds a certain threshold, it automatically opens to release the pressure and prevent more serious damage.

[0047] like Figure 1 , Figure 2 As shown in , the condenser 200 is connected to the gas outlet pipe 120 of the distillation device 100, and is used to condense the gas mixture into an oil-water mixture for separation and collection. In this embodiment, the upper part of the condenser 200 is roughly cylindrical, the lower part is roughly conical, and is connected to a condensate pipe 320. The condenser 200 transfers the heat of the gas mixture to the cooling medium through a spiral heat exchange component, so that the temperature of the gas mixture is reduced and condensed into a liquid oil-water mixture, which is then discharged into the condensate pipe 320 below.

[0048] like Figure 1 , Figure 4As shown in , the oil-water separator 300 is arranged below the condenser 200. The oil-water separator 300 in this embodiment mainly includes: a separator housing 310, a condensate pipe 320, an oil collecting short pipe 350, and a water outlet pipe 360. Among them, the separator housing 310 is roughly cylindrical and made of transparent materials, such as glass materials in this embodiment, so that users can directly observe the liquid level in the separator housing 310 and the height of the oil-water interface from the outside. It should also be pointed out that the separator housing 310 in this embodiment can also be made of transparent plastic materials that meet the requirements for food and drug use, such as polycarbonate (PC), high-density polyethylene (HDPE), etc. At the same time, a condensate pipe 320 is arranged on the top wall of the separator housing 310, and connects the outlet below the condenser 200 with the interior of the separator housing 310, for introducing the oil-water mixture condensed into a liquid state, and a condensate valve 321 is arranged on the condensate pipe 320 for controlling the opening and closing of the condensate pipe 320. An oil collecting short pipe 350 is arranged on the bottom wall of the separator housing 310, and is used to discharge the extracted oil for collection; one end of the oil collecting short pipe 350 extends into the separator housing 310 to a certain height, so as to prevent the water phase with a higher density below the extracted oil from entering the oil collecting short pipe 350 and affecting the purity of the extracted oil; the other end of the oil collecting short pipe 350 extends from the bottom of the separator housing 310, and a first oil collecting valve 351 is arranged on the oil collecting short pipe 350, which is used to control the opening and closing of the oil collecting short pipe 350. One end of a water outlet pipe 360 ​​is arranged on the bottom wall of the separator housing 310 and is connected to the inside of the separator housing 310, and is used to discharge the water phase below the extracted oil; the other end of the water outlet pipe 360 ​​is connected to the liquid inlet pipe 110 of the distillation device 100 through the return pipe 364, and the discharged water phase is remixed into the original drug extract, and then distilled, so as to reduce the waste of residual extracted oil therein. A first water outlet valve 368 is provided on the water outlet pipe 360 ​​to control the opening and closing of the water outlet pipe 360. In addition, a short adding pipe 340 and a short gas balancing pipe 330 are provided on the top wall of the separator housing 310. The short adding pipe 340 is used to add excess water phase back into the separator housing 310; the short gas balancing pipe 330 is used to balance the gas pressure in the separator housing 310 during the process of the liquid level in the separator housing 310 increasing or decreasing.

[0049] A specific implementation of this embodiment is:

[0050] The drug extract obtained by the steps of pretreatment, extraction and the like of Chinese medicinal materials is first added to the distillation device 100 through the liquid inlet pipe 110; after high-temperature distillation, the obtained gas mixture enters the condenser 200 through the gas outlet pipe 120; in the condenser 200, the condensed oil-water mixture is passed into the oil-water separator 300 below through the condensate pipe 320; after a certain amount of oil-water mixture is collected in the oil-water separator 300, the condensate valve 321 provided on the condensate pipe 320 is closed and the mixture begins to stand still; after observing through the transparent separator shell 310, when there is a clear dividing line between the oil-water mixture, the first water outlet valve 368 on the water outlet pipe 360 ​​is opened to discharge the water phase. Out and flow into the liquid inlet pipe 110, enter the distillation device 100 for further distillation; observe through the transparent separator shell 310, after the dividing line between oil and water is lower than the upper end of the oil collecting short tube 350, close the first water outlet valve 368 on the water outlet pipe 360; then, open the first oil collecting valve 351 on the oil collecting short tube 350, first discharge the water phase at the bottom of the oil collecting short tube 350, and then use a container to collect the extracted oil; finally, add the water phase first discharged from the bottom of the oil collecting short tube 350 back into the separator shell 310 through the adding short tube 340, and open the first water outlet valve 368 on the water outlet pipe 360, discharge the water phase and flow into the liquid inlet pipe 110, enter the distillation device 100 for further distillation.

[0051] In this embodiment, the drug extraction oil-water separation device is observed by setting a transparent separator shell 310 on the oil-water separator, and is controlled by cooperating with the condensate valve 321 set on the condensate pipe 320, the first water outlet valve 368 on the water outlet pipe 360 ​​and the first oil collecting valve 351 on the oil collecting short pipe 350, and the water outlet pipe 360 ​​is connected to the liquid inlet pipe 110. While avoiding the water phase from entering the extracted oil and affecting its purity, the remaining water phase is recycled, which solves the problem of improper control of the oil-water interface in the prior art during the oil-water separation process, resulting in the extraction of more water in the oil. The oil contains impurities and the purity of the extracted oil is insufficient, and the extracted oil is left in the water and discharged, resulting in waste of drug components.

[0052] At the same time, in this embodiment, by providing the addition short tube 340, the waste of the water phase first discharged from the lower part of the oil collecting short tube 350 is avoided, and the full utilization of the drug components is achieved.

[0053] Preferably, since the strength of glass or other transparent materials is usually lower than that of metal materials, the strength of the separator housing 310 is also low, and it is easy to be damaged after colliding with other metal tools on site. Therefore, in this embodiment, a protective component can also be provided on the oil-water separator 300, and the protective component of this embodiment is mainly composed of a protective rod 384, a first flange 382 and a second flange 386. Among them, the first flange 382 and the second flange 386 are respectively arranged on the top wall and the bottom wall of the separator housing 310. Six protective rods 384 are connected between the first flange 382 and the second flange 386, and are located on the outside of the side wall of the separator housing 310. The protective rods 384 are provided with threads at both ends and are fixed to the first flange 382 and the second flange 386 on both sides by matching nuts. By providing the protective rods 384 on the outside of the side wall of the separator housing 310, the separator housing 310 is prevented from being directly impacted. In addition, the number of protective rods 384 is not limited to six, and other numbers of protective rods 384 can also be provided.

[0054] Preferably, the water outlet pipe 360 ​​is also connected to a drain pipe 366 , and the drain pipe 366 is provided with a drain valve 367 for discharging the water in the separator shell 310 when the distillation device 100 fails or the return pipe 364 is blocked.

[0055] Preferably, an oblique cut is provided at one end of the oil collecting short pipe 350 extending into the separator housing 310, and the oblique cut helps to improve the flow characteristics of the fluid, reduce turbulence and eddy currents, and avoid the water phase being drawn into the oil collecting short pipe 350 when discharging the extracted oil.

[0056] However, in the above embodiment, since the oil collecting short tube 350 extends into the separator shell 310 to a certain height, more water phase needs to be discharged first, and it is not easy to determine whether the water phase in the oil collecting short tube 350 has been drained before starting to collect and extract the oil. In order to further solve these problems on the basis of the first embodiment, a second embodiment is provided below.

[0057] See also Figure 5The drug extraction oil-water separation device in the second embodiment further improves the structure of the oil-water separator 300, and is further provided with a second water outlet valve 369, a Y-type tee 352, a second oil collecting valve 353, a third oil collecting valve 355 and a water distribution pipe 354 on the basis of the first embodiment. Among them, the second water outlet valve 369 is arranged on the water outlet pipe 360 ​​and is located below the first water outlet valve 368. An outlet of a Y-type tee 352 is connected to one end of the oil collecting short pipe 350 extending from the bottom of the separator housing 310, which is used to separate the extracted oil and water phases. The second oil collecting valve 353 and the third oil collecting valve 355 are respectively arranged on the first outlet and the second outlet of the Y-type tee 352, which are used to control the opening and closing of the first outlet and the second outlet. At the same time, one end of the water distribution pipe 354 is connected to the second outlet of the Y-type tee 352, and the other end thereof is connected to the water outlet pipe 360, and the connection point is located between the first water outlet valve 368 and the second water outlet valve 369. In addition, the oil collecting short tube 350 and the Y-shaped tee 352 in the second embodiment are both made of transparent materials, so that the height of the dividing line between oil and water in the oil collecting short tube 350 can be easily observed.

[0058] During the use of the drug extraction oil-water separation device of the second embodiment, when discharging the water phase at the bottom of the oil collecting short tube 350, the second oil collecting valve 353 on the first outlet of the Y-type tee 352 is first closed, and the third oil collecting valve 355 on the second outlet and the second water outlet valve 369 on the water outlet pipe 360 ​​are opened at the same time, so that the water phase is discharged and flows into the liquid inlet pipe 110, and enters the distillation device 100 for further distillation; the oil-water boundary line in the oil collecting short tube 350 is observed through the transparent oil collecting short tube 350 and the Y-type tee 352, and when the oil-water boundary line is lower than the first outlet end of the Y-type tee 352, that is, after the water phase in the Y-type tee 352 is completely discharged, the third oil collecting valve 355 on the second outlet and the second water outlet valve 369 on the water outlet pipe 360 ​​are first closed, and then the second oil collecting valve 353 on the first outlet is opened to collect the extracted oil from the first outlet. Since it can be determined that the water phase in the Y-type tee 352 has been completely discharged at this time, the collected extracted oil basically does not contain water phase.

[0059] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A drug extraction oil-water separation device, characterized in that: Include: A distillation device (100) for distilling a drug extract into a gas mixture; a condenser (200), connected to the gas outlet pipe (120) of the distillation device (100), and used for condensing the gas mixture into an oil-water mixture; and The oil-water separator (300) is arranged below the condenser (200), and the oil-water separator (300) at least comprises: A separator housing (310) made of transparent material; a condensate pipe (320) disposed on the top wall of the separator housing (310) and connecting the condenser (200) and the separator housing (310), and a condensate valve (321) is disposed on the condensate pipe (320); an oil collecting short pipe (350) disposed on the bottom wall of the separator housing (310), one end of which extends into the separator housing (310) to a certain height, and the other end of which extends from the bottom of the separator housing (310), and a first oil collecting valve (351) is disposed on the oil collecting short pipe (350); and A water outlet pipe (360), one end of which is arranged on the bottom wall of the separator shell (310) and communicated with the interior of the separator shell (310), and the other end of which is connected to the liquid inlet pipe (110) of the distillation device (100) through a return pipe (364), and a first water outlet valve (368) is arranged on the water outlet pipe (360).

2. The drug extraction oil-water separation equipment according to claim 1, characterized in that: The oil-water separator (300) further comprises at least: An addition short pipe (340) is arranged at the top of the separator shell (310) and is used for adding the water phase.

3. The drug extraction oil-water separation equipment according to claim 1, characterized in that: The oil-water separator (300) further comprises at least: A gas balance short pipe (330) is arranged on the top of the separator shell (310) and is used to balance the gas pressure in the separator shell (310).

4. The drug extraction oil-water separation equipment according to claim 1, characterized in that: The oil-water separator (300) further comprises at least a protection component, wherein the protection component comprises: A first flange (382) and a second flange (386) are respectively arranged on the top wall and the bottom wall of the separator housing (310); and A plurality of protection rods (384) are connected between the first flange (382) and the second flange (386) and are located outside the side wall of the separator housing (310).

5. The drug extraction oil-water separation equipment according to claim 4, characterized in that: The protective rod (384) is provided with threads at both ends and is fixed to the first flange (382) and the second flange (386) on both sides by matching nuts.

6. The drug extraction oil-water separation equipment according to claim 1, characterized in that: The oil collecting short pipe (350) is made of transparent material.

7. The drug extraction oil-water separation equipment according to claim 6, characterized in that: The oil-water separator (300) further comprises at least: a Y-shaped tee (352) made of transparent material, the outlet of which is connected to an end of the oil collecting short pipe (350) extending from the bottom of the separator housing (310); The second oil collecting valve (353) and the third oil collecting valve (355) are respectively arranged at the first outlet and the second outlet of the Y-shaped three-way (352); and A water distribution pipe (354) has one end connected to the second outlet of the Y-shaped tee (352), and the other end connected to the water outlet pipe (360), and the connection point is below the first water outlet valve (368).

8. The drug extraction oil-water separation equipment according to claim 7, characterized in that: The oil-water separator (300) further comprises at least: The second water outlet valve (369) is arranged on the water outlet pipe (360) and is located below the connection point between the water distribution pipe (354) and the water outlet pipe (360).

9. The drug extraction oil-water separation equipment according to claim 1, characterized in that: An oblique cut is provided at one end of the oil collecting short pipe (350) extending into the separator housing (310).

10. The drug extraction oil-water separation equipment according to claim 1, characterized in that: The water outlet pipe (360) is also connected to a drainage pipe (366), and a drainage valve (367) is provided on the drainage pipe (366).

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