Double-effect concentration device for traditional Chinese medicine liquid preparation

Abstract

The utility model provides a double-effect concentration device for a traditional Chinese medicine liquid preparation, which comprises a first-effect heating tank, a first-effect gas-liquid separator, a second-effect heating tank, a second-effect gas-liquid separator and a condenser, the bottom end of the condenser is connected with the top of a liquid receiving tank, a concentration collecting tank is arranged on one side of the first-effect heating tank, feed liquid inlets are arranged at the tops of the first-effect heating tank and the second-effect heating tank, and the feed liquid inlets are communicated with the condenser. Exhaust pipes are connected between the top of the first-effect heating tank and the top of the first-effect gas-liquid separator and between the top of the second-effect heating tank and the top of the second-effect gas-liquid separator, circulating pipes are connected between the bottoms of the exhaust pipes, a connecting pipe is connected between the top of the first-effect gas-liquid separator and the top of the second-effect heating tank, and an air inlet pipe is connected between the top of the second-effect gas-liquid separator and the top of the condenser; discharging pipes are respectively connected between the bottom ends of the first-effect heating tank and the second-effect heating tank and the concentration collecting tank, one side of each of the first-effect heating tank and the second-effect heating tank is externally connected with a steam inlet pipe, the bottom of the liquid receiving tank is connected with a liquid discharging valve, and stirring mechanisms are arranged at the tops of the first-effect heating tank and the second-effect heating tank; the device can improve the concentration speed and further improve the concentration efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of traditional Chinese medicine concentration, and particularly relates to a double-effect concentration device for traditional Chinese medicine liquid preparations. Background Art

[0002] The traditional Chinese medicine extraction and concentration process refers to the process of enriching effective substances and removing impurities from clean medicinal materials with appropriate solvents and methods according to clinical medication and preparation requirements. It is a unique process for modern traditional Chinese medicine preparations. The rationality of the extraction and concentration process and the correct application of technology are directly related to the full utilization of medicinal materials and the full play of the efficacy of preparations. Concentration is to heat and evaporate the traditional Chinese medicine extraction solution, and at the same time condense the solvent vapor. In the concentration process, in order to improve the concentration efficiency, reduce production costs, and improve energy utilization efficiency, a double-effect concentrator is usually used for concentration.

[0003] Chinese Patent Publication No. CN210612914U discloses a traditional Chinese medicine double-effect concentrator. The technical characteristics of this patent can reduce energy consumption and improve the concentration effect to a certain extent. However, the traditional heating method is used to heat and evaporate the liquid in the heating chamber in this patent, which leads to problems such as slow concentration speed and low efficiency.

[0004] In view of this, in order to solve the above technical problems, the utility model provides a double-effect concentration device for traditional Chinese medicine liquid preparations, which can improve the concentration speed and steam conductivity, and thus improve the concentration efficiency. Summary of the Invention

[0005] The utility model provides a double-effect concentration device for traditional Chinese medicine liquid preparations, which can improve the concentration speed and steam conductivity, and thus improve the concentration efficiency. The specific scheme is as follows:

[0006] A double-effect concentration device for traditional Chinese medicine liquid preparations includes a first-effect heating tank, a first-effect gas-liquid separator, a second-effect heating tank, a second-effect gas-liquid separator and a condenser arranged in parallel. The bottom outlet of the condenser is connected to the top of the liquid receiving tank. A concentrated liquid collecting tank is arranged on one side of the first-effect heating tank. Liquid inlet pipes are arranged at the tops of the first-effect heating tank and the second-effect heating tank. Exhaust pipes are connected between the tops of the first-effect heating tank and the first-effect gas-liquid separator and between the tops of the second-effect heating tank and the second-effect gas-liquid separator, and circulation pipes are connected between their bottoms. A connecting pipe is connected between the first-effect gas-liquid separator and the top of the second-effect heating tank. A gas guide pipe is connected between the second-effect gas-liquid separator and the top of the condenser. Discharge pipes are respectively connected between the bottoms of the first-effect heating tank and the second-effect heating tank and the concentrated liquid collecting tank. Steam inlet pipes are externally connected to one side of the first-effect heating tank and the second-effect heating tank. A drain valve is connected to the bottom of the liquid receiving tank. The first-effect heating tank, the second-effect heating tank, the condenser and the collecting tank are all arranged on a support. Stirring mechanisms are arranged at the tops of the first-effect heating tank and the second-effect heating tank.

[0007] Further, the stirring mechanism includes a driving motor arranged on the tops of the first-effect heating tank and the second-effect heating tank. The output end of the driving motor is vertically connected downward with a stirring shaft, and a plurality of groups of stirring rods are arranged at intervals along the height direction on both axial sides of the stirring shaft.

[0008] Further, guide cylinders adapted for the stirring shaft to rotate therein are vertically arranged on the tops of both the first-effect heating tank and the second-effect heating tank, and the guide cylinders penetrate through their tops and extend into the interiors of the first-effect heating tank and the second-effect heating tank.

[0009] Further, the inner height directions of both the first-effect heating tank and the second-effect heating tank are wavy concave-convex structures, and the ends of the stirring rods are located inside the concave structures.

[0010] Further, vacuum pumps are provided on the exhaust pipes between the tops of the first-effect heating tank and the first-effect gas-liquid separator and between the tops of the second-effect heating tank and the second-effect gas-liquid separator.

[0011] Furthermore, the connecting pipes in the first-effect gas-liquid separator and the guide pipes in the second-effect gas-liquid separator are both arc-shaped pipes with openings facing upward, and their ends are respectively higher than the ends of the exhaust pipes therein.

[0012] Still further, exhaust valves are respectively communicated with the tops of the first-effect heating tank, the first-effect gas-liquid separator, the second-effect heating tank, the second-effect gas-liquid separator, the condenser and the liquid receiving tank.

[0013] The beneficial effects of the present utility model are as follows:

[0014] For the double-effect concentration device of a traditional Chinese medicine liquid preparation of the present utility model, by arranging a stirring mechanism in the first-effect heating tank and the second-effect heating tank and setting the interiors of the first-effect heating tank and the second-effect heating tank into wavy concave-convex structures, the evaporation speed of the solvent can be increased by stirring and increasing the heat absorption area of the steam, thereby improving the concentration efficiency; by arranging vacuum pumps on the exhaust pipes between the tops of the first-effect heating tank and the first-effect gas-liquid separator and between the tops of the second-effect heating tank and the second-effect gas-liquid separator, when the vacuum pumps are started, the transmission speed of the evaporated steam can be accelerated, further improving the concentration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model.

[0016] Figure 2 is a top view of the present utility model.

[0017] Figure 3 is Figure 2 the A-A cross-sectional view in

[0018] Figure 4 is Figure 3 the partial enlarged view in

[0019] Description of reference numerals: the first-effect heating tank 1, the first-effect gas-liquid separator 2, the second-effect heating tank 3, the second-effect gas-liquid separator 4, the condenser 5, the liquid receiving tank 6, the concentration collecting tank 7, the feed liquid inlet 8, the exhaust pipe 9, the circulation pipe 10, the connecting pipe 11, the air guide pipe 12, the discharge pipe 13, the drain valve 14, the bracket 15, the stirring mechanism 16, the driving motor 161, the stirring shaft 162, the stirring rod 163, the guiding cylinder 164, the steam inlet pipe 17, the vacuum pump 18. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Refer to Figures 1-4 , a double-effect concentration device for traditional Chinese medicine liquid preparations, including the first-effect heating tank 1, the first-effect gas-liquid separator 2, the second-effect heating tank 3, the second-effect gas-liquid separator 4 and the condenser 5 arranged in parallel. Both the first-effect heating tank 1 and the second-effect heating tank 3 have heating cavities. The bottom outlet of the condenser 5 is connected to the top of the liquid receiving tank 6. A concentration collecting tank 7 is provided on one side of the first-effect heating tank 1. Feed liquid inlets 8 are provided at the tops of both the first-effect heating tank 1 and the second-effect heating tank 3. Exhaust pipes 9 are connected between the tops of the first-effect heating tank 1 and the first-effect gas-liquid separator 2 and between the tops of the second-effect heating tank 3 and the second-effect gas-liquid separator 4. Circulation pipes 10 are connected between their bottoms. A connecting pipe 11 is connected between the first-effect gas-liquid separator 2 and the top of the second-effect heating tank 3. An air guide pipe 12 is connected between the second-effect gas-liquid separator 4 and the top of the condenser 5. Discharge pipes 13 are respectively connected between the bottoms of the first-effect heating tank 1 and the second-effect heating tank 3 and the concentration collecting tank 7. Steam inlet pipes 17 are externally connected to one side of both the first-effect heating tank 1 and the second-effect heating tank 3. A drain valve 14 is connected to the bottom of the liquid receiving tank 6. The first-effect heating tank 1, the second-effect heating tank 3, the condenser 5 and the collecting tank are all arranged on the bracket 15. Stirring mechanisms 16 are provided at the tops of both the first-effect heating tank 1 and the second-effect heating tank 3. The setting of the stirring mechanism 16 facilitates improving the evaporation rate of steam and thus the concentration efficiency by stirring the feed liquid in the first-effect heating tank 1 and the second-effect heating tank 3.

[0022] The stirring mechanism 16 includes a driving motor 161 provided at the tops of the first-effect heating tank 1 and the second-effect heating tank 3. The output end of the driving motor 161 is vertically downward connected with a stirring shaft 162. A plurality of groups of stirring rods 163 are arranged at intervals along the height direction on both axial sides of the stirring shaft 162. During use, just control the driving motor 161 to start, and the plurality of groups of stirring rods 163 can stir the feed liquid in the first-effect heating tank 1 and the second-effect heating tank 3, and the evaporation rate of the steam can be increased.

[0023] A guiding cylinder 164 suitable for the stirring shaft 162 to rotate therein is vertically provided at the top of both the first-effect heating tank 1 and the second-effect heating tank 3, and the guiding cylinder 164 penetrates through its top and extends into the first-effect heating tank 1 and the second-effect heating tank 3. The arrangement of the guiding cylinder 164 facilitates ensuring the stability of the stirring shaft 162 during stirring.

[0024] The inner height direction of both the first-effect heating tank 1 and the second-effect heating tank 3 is a wavy concave-convex structure, and the end of the stirring rod 163 is located inside the concave structure. The setting of the wavy concave-convex structure facilitates increasing the contact area of the heating steam and improving the stirring force of the stirring rod 163 for stirring the liquid material.

[0025] Vacuum pumps 18 are provided on the exhaust pipes 9 between the tops of the first-effect heating tank 1 and the first-effect gas-liquid separator 2 and the tops of the second-effect heating tank 3 and the second-effect gas-liquid separator 4. When the vacuum pumps 18 are started, the transmission speed of the evaporated steam can be accelerated, and the concentration efficiency is further improved.

[0026] The connecting pipe 11 in the first-effect gas-liquid separator 2 and the gas guide pipe 12 in the second-effect gas-liquid separator 4 are both arc-shaped structure pipes with openings facing upwards, and their ends are respectively higher than the ends of the exhaust pipes 9 inside them, which can prevent the liquid separated by the gas-liquid separator from passing through.

[0027] Emptying valves are respectively connected to the tops of the first-effect heating tank 1, the first-effect gas-liquid separator 2, the second-effect heating tank 3, the second-effect gas-liquid separator 4, the condenser 5, and the liquid receiving tank 6. After use, the air inside them can be discharged through the emptying valves.

[0028] Working principle:

[0029] First, feed liquid is respectively input into the first-effect heating tank 1 and the second-effect heating tank 3 through the feed liquid inlet 8. Then, by controlling the steam, the first-effect heating tank 1 and the second-effect heating tank 3 are heated to heat and evaporate the feed liquid therein. At the same time, two driving motors 161 and two vacuum pumps 18 on the two exhaust pipes 9 are controlled to start. Through steam heating and agitation by the array of stirring rods 163, the water and solvent in the feed liquid are accelerated to evaporate. When steam is formed in the first-effect heating tank 1, it quickly enters the first-effect gas-liquid separator 2 through the vacuum pump 18 on the exhaust pipe 9. The liquid separated by the first-effect gas-liquid separator 2 enters the first-effect heating tank 1 through the connected circulation pipe 10 for secondary heating and evaporation, while the separated steam enters the second-effect heating tank 3 through the connected connecting pipe 11. The feed liquid in the second-effect heating tank 3 is heated and evaporated by the original heating steam in the second-effect heating tank 3 and the steam conducted by the connecting pipe 11, which can improve the energy utilization rate. At this time, when steam is formed in the second-effect heating tank 3, it quickly enters the second-effect gas-liquid separator 4 through the vacuum pump 18 on the exhaust pipe 9. The liquid separated by the second-effect gas-liquid separator 4 enters the second-effect heating tank 3 through the connected circulation pipe 10 for re-heating and evaporation, while the separated steam enters the condenser 5 through the connected air duct 12 for condensation. After condensation by the condenser 5, the solvent liquid can be obtained, and the liquid enters the liquid receiving tank 6 through the outlet of the condenser 5 to complete the collection of the solvent. After the concentration is completed, the concentrated liquid in the first-effect heating tank 1 and the second-effect heating tank 3 is discharged into the concentrated liquid collection tank 7 through the discharge pipe 13, and then the air in the corresponding tank is discharged through the air release valve.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A double-effect concentration device for a traditional Chinese medicine liquid preparation, characterized in that: It includes a first-effect heating tank (1), a first-effect gas-liquid separator (2), a second-effect heating tank (3), a second-effect gas-liquid separator (4) and a condenser (5) arranged in parallel. The bottom outlet of the condenser (5) is connected to the top of the liquid receiving tank (6). A concentrated liquid collecting tank (7) is provided on one side of the first-effect heating tank (1). Liquid inlet pipes (8) are provided at the tops of both the first-effect heating tank (1) and the second-effect heating tank (3). Exhaust pipes (9) are connected between the tops of the first-effect heating tank (1) and the first-effect gas-liquid separator (2) and between the tops of the second-effect heating tank (3) and the second-effect gas-liquid separator (4). Circulation pipes (10) are connected between their bottoms. A connecting pipe (11) is connected between the top of the first-effect gas-liquid separator (2) and the top of the second-effect heating tank (3). A gas guide pipe (12) is connected between the top of the second-effect gas-liquid separator (4) and the top of the condenser (5). Discharge pipes (13) are respectively connected between the bottoms of the first-effect heating tank (1) and the second-effect heating tank (3) and the concentrated liquid collecting tank (7). Steam inlet pipes (17) are externally connected to one side of both the first-effect heating tank (1) and the second-effect heating tank (3). A drain valve (14) is connected to the bottom of the liquid receiving tank (6). The first-effect heating tank (1), the second-effect heating tank (3), the condenser (5) and the collecting tank are all arranged on a bracket (15). Stirring mechanisms (16) are provided at the tops of both the first-effect heating tank (1) and the second-effect heating tank (3).

2. The double-effect concentration device for a traditional Chinese medicine liquid preparation according to claim 1, characterized in that: The stirring mechanism (16) includes a driving motor (161) arranged at the tops of the first-effect heating tank (1) and the second-effect heating tank (3). The output end of the driving motor (161) is vertically downward connected with a stirring shaft (162). A plurality of groups of stirring rods (163) are arranged at intervals along the height direction on both axial sides of the stirring shaft (162).

3. The double-effect concentration device for a traditional Chinese medicine liquid preparation according to claim 2, characterized in that: Guide cylinders (164) suitable for the stirring shaft (162) to rotate therein are vertically provided at the tops of both the first-effect heating tank (1) and the second-effect heating tank (3), and the guide cylinders (164) penetrate through their tops and extend into the interiors of the first-effect heating tank (1) and the second-effect heating tank (3).

4. The double-effect concentration device for a traditional Chinese medicine liquid preparation according to claim 2, wherein: The inner height directions of both the first-effect heating tank (1) and the second-effect heating tank (3) are wavy concave-convex structures, and the ends of the stirring rods (163) are located inside the concave structures.

5. A double-effect concentration device for a traditional Chinese medicine liquid preparation according to claim 1, characterized in that: Vacuum pumps (18) are provided on the exhaust pipes (9) between the tops of the first-effect heating tank (1) and the first-effect gas-liquid separator (2) and between the tops of the second-effect heating tank (3) and the second-effect gas-liquid separator (4).

6. The double-effect concentration device for a traditional Chinese medicine liquid preparation according to claim 1, characterized in that: The connecting pipe (11) in the first-effect gas-liquid separator (2) and the gas guide pipe (12) in the second-effect gas-liquid separator (4) are both arc-shaped pipes with openings facing upward, and their ends are respectively higher than the ends of the exhaust pipes (9) inside them.

7. The double-effect concentration device for a traditional Chinese medicine liquid preparation according to claim 1, characterized in that: Vent valves are respectively connected to the tops of the first-effect heating tank (1), the first-effect gas-liquid separator (2), the second-effect heating tank (3), the second-effect gas-liquid separator (4), the condenser (5) and the liquid receiving tank (6).

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