Extraction and concentration system for liquid medicine

Abstract

An extraction and concentration system for liquid medicine comprises a liquid medicine extraction tank, the top of the liquid medicine extraction tank is connected with a backflow mechanism, and the backflow mechanism comprises a backflow pipe connected with the liquid medicine extraction tank, and a horizontal condenser, a vertical condenser and a condensate water recoverer which are sequentially arranged on the backflow pipe. The cooling water pipe is sequentially connected with cooling medium pipelines of the vertical condenser and the horizontal condenser, and the tail end of the return pipe is connected to the side wall of the liquid medicine extraction tank; the buffer tank is connected with a liquid medicine discharge pipeline of the liquid medicine extraction tank, a liquid outlet of the buffer tank is connected with a liquid medicine conveying pipeline, an infusion pump is arranged on the liquid medicine conveying pipeline, and a liquid return branch pipe connected with a return pipe is further arranged at the rear section of the liquid medicine conveying pipeline. The extraction rate of medicinal materials and the concentration effect of liquid medicine can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of drug liquid extraction and concentration, in particular to an extraction and concentration system for drug liquid. Background Art

[0002] In the pharmaceutical industry, after Chinese medicine raw materials are boiled, the effective ingredients of Chinese medicine raw materials are continuously extracted and mixed with water to form liquid medicine. The existing liquid medicine extraction and concentration systems on the market often have the defects of insufficient liquid medicine extraction utilization rate and insufficient systematic extraction and concentration equipment. Utility Model Content

[0003] The purpose of the utility model is to provide a system for extracting and concentrating liquid medicine in view of the above-mentioned shortcomings.

[0004] The utility model comprises a liquid medicine extraction tank, the top of which is connected with a reflux mechanism, the reflux mechanism comprises a reflux pipe connected with the liquid medicine extraction tank and a horizontal condenser, a vertical condenser and a condensate recovery device sequentially arranged on the reflux pipe, a cooling water pipe sequentially connected with the cooling medium pipelines of the vertical condenser and the horizontal condenser, and the end of the reflux pipe is connected to the side wall of the liquid medicine extraction tank;

[0005] A buffer tank is connected to the liquid medicine discharge pipeline of the liquid medicine extraction tank, the liquid outlet of the buffer tank is connected to the liquid medicine delivery pipeline, the liquid medicine delivery pipeline is provided with an infusion pump, and the rear section of the liquid medicine delivery pipeline is also provided with a return branch pipe connected to the reflux pipe;

[0006] A liquid medicine storage tank, the top of which is connected to the end of the liquid medicine delivery pipeline;

[0007] The single-effect concentrator comprises a heater, an evaporator, a cooler and a receiving tank which are connected in sequence. The liquid inlet of the heater is connected to the liquid discharge port of the liquid medicine storage tank through a liquid discharge pipe and a feed pump.

[0008] Preferably, there are two buffer tanks, which are arranged in parallel on the drug liquid discharge pipeline.

[0009] Preferably, the rear section of the reflux pipe is connected to the liquid return branch pipe, and the connection point is located on the reflux pipe between the condensate recovery device and the liquid medicine extraction tank.

[0010] Preferably, outer walls of the heater and the evaporator are both provided with thermal insulation layers.

[0011] Preferably, a vacuum pump interface for connecting a vacuum pump is provided above the receiving tank.

[0012] Preferably, the liquid medicine extraction tank and the heater are both provided with a steam inlet pipe interface and a steam outlet pipe interface for the heating steam to enter and exit.

[0013] The utility model has the advantages that the reflux mechanism provided in the liquid medicine extraction tank, the horizontal condenser, the vertical condenser and the condensate recovery device connected in sequence can effectively ensure the extraction rate of the liquid medicine. Two buffer tanks are arranged in parallel on the liquid medicine discharge pipeline. When the concentration of the liquid medicine in the liquid medicine extraction tank fails to meet the standard, the temporarily stored liquid medicine in the buffer tank with the concentration meeting the standard can be returned to the liquid medicine extraction tank through the return branch pipe and the reflux pipe to increase the concentration of the liquid medicine, and then the liquid medicine in the liquid medicine extraction tank is output after the concentration meets the standard. Systematizing the extraction and concentration of the liquid medicine can ensure the extraction rate of the medicinal materials and the concentration effect of the liquid medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0017] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, if the terms "first", "second", etc. appear in the description of the present utility model, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0018] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] As shown in the accompanying drawings, the utility model includes

[0020] The medicinal liquid extraction tank 1 has a reflux mechanism connected to the top thereof, the reflux mechanism comprising a reflux pipe 11 connected to the medicinal liquid extraction tank 1 and a horizontal condenser 12, a vertical condenser 13 and a condensate recovery device 14 sequentially arranged on the reflux pipe 11, a cooling water pipe 15 sequentially connecting the cooling medium pipes of the vertical condenser 13 and the horizontal condenser 12, and the end of the reflux pipe 11 is connected to the side wall of the medicinal liquid extraction tank 1;

[0021] A buffer tank 2 is connected to a liquid discharge pipe 16 of the liquid extraction tank 1. A liquid delivery pipe 17 is connected to the liquid outlet of the buffer tank 2. An infusion pump 18 is provided on the liquid delivery pipe 17. A liquid return branch pipe 19 connected to the reflux pipe 11 is also provided at the rear section of the liquid delivery pipe 17.

[0022] The top of the liquid medicine storage tank 3 is connected to the end of the liquid medicine delivery pipeline 17;

[0023] The single-effect concentrator comprises a heater 4, an evaporator 5, a cooler 6 and a receiving tank 7 which are connected in sequence. The liquid inlet of the heater 4 is connected to the liquid discharge port of the liquid medicine storage tank 3 through a liquid discharge pipe 20 and a feed pump 21.

[0024] In another technical solution, the number of the buffer tanks 2 is two, and the two buffer tanks are arranged in parallel on the liquid medicine discharge pipeline 16 .

[0025] In another technical solution, the rear section of the reflux pipe 11 is connected to the liquid return branch pipe 19 , and the connection point is located on the reflux pipe 11 between the condensate recovery device 14 and the liquid medicine extraction tank 1 .

[0026] In another technical solution, the outer walls of the heater 4 and the evaporator 5 are both provided with a thermal insulation layer.

[0027] In another technical solution, a vacuum pump interface for connecting a vacuum pump is provided above the receiving tank 7 .

[0028] In another technical solution, the liquid medicine extraction tank 1 and the heater 4 are both provided with a steam inlet pipe interface and a steam outlet pipe interface for the heating steam to enter and exit.

[0029] Working principle: The liquid medicine extraction tank is equipped with a reflux mechanism, and the horizontal condenser, vertical condenser and condensate recovery device connected in sequence recover the evaporated liquid medicine, which can effectively ensure the extraction rate of the liquid medicine. Two buffer tanks are arranged in parallel on the liquid medicine discharge pipeline. When the concentration of the liquid medicine in the liquid medicine extraction tank cannot meet the standard, the temporary liquid medicine in the buffer tank with the concentration meeting the standard can be returned to the liquid medicine extraction tank through the return branch pipe and the reflux pipe to increase the concentration of the liquid medicine, so as to discharge the liquid medicine in the liquid medicine extraction tank after the concentration reaches the standard. The liquid medicine that meets the standard enters the liquid medicine storage tank, and finally is transported to the heater of the single-effect concentrator, where the liquid medicine is heated and raised, and sprayed into the evaporator from the discharge pipe for vapor-liquid separation. The liquid medicine returns to the lower part of the heater from the circulation pipe for reheating, and the liquid medicine is heated and sprayed into the evaporator again to form a cycle. The liquid medicine is concentrated to a certain degree, and after sampling and determining that it is qualified, it is discharged from the discharge port. The steam evaporated from the evaporator is cooled into liquid by the cooler and enters the receiving tank. Finally, the non-condensable gas is taken away by the vacuum pump. Systematizing the extraction and concentration of medicinal liquid can ensure the extraction rate of medicinal materials and the concentration effect of the medicinal liquid.

[0030] The above implementation cases are only for illustrating the technical solutions and features of the utility model, and their purpose is to enable people familiar with the technology to implement them better. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model are within the protection scope of the utility model, and those not described in detail are prior art.

Claims

1. A system for extracting and concentrating a medicinal solution, characterized in that: include A medicinal liquid extraction tank (1) is provided with a reflux mechanism on its top, the reflux mechanism comprising a reflux pipe (11) connected to the medicinal liquid extraction tank (1) and a horizontal condenser (12), a vertical condenser (13) and a condensate recovery device (14) arranged in sequence on the reflux pipe (11); a cooling water pipe (15) is connected in sequence to cooling medium pipes of the vertical condenser (13) and the horizontal condenser (12); and the end of the reflux pipe (11) is connected to the side wall of the medicinal liquid extraction tank (1); A buffer tank (2) is connected to a liquid medicine discharge pipe (16) of a liquid medicine extraction tank (1); a liquid outlet of the buffer tank (2) is connected to a liquid medicine delivery pipe (17); an infusion pump (18) is provided on the liquid medicine delivery pipe (17); and a liquid return branch pipe (19) connected to a reflux pipe (11) is further provided at the rear section of the liquid medicine delivery pipe (17); A liquid medicine storage tank (3), the top of which is connected to the end of a liquid medicine delivery pipeline (17); A single-effect concentrator comprises a heater (4), an evaporator (5), a cooler (6) and a receiving tank (7) which are connected in sequence. The liquid inlet of the heater (4) is connected to the liquid discharge port of the liquid medicine storage tank (3) through a liquid discharge pipe (20) and a feed pump (21).

2. A system for extracting and concentrating a medicinal liquid according to claim 1, characterized in that: The number of the buffer tanks (2) is two, and the two buffer tanks are arranged in parallel on the liquid medicine discharge pipeline (16).

3. The extraction and concentration system for liquid medicine according to claim 1, characterized in that: The rear section of the reflux pipe (11) is connected to the liquid return branch pipe (19), and the connection point is located on the reflux pipe (11) between the condensate recovery device (14) and the liquid medicine extraction tank (1).

4. The extraction and concentration system for liquid medicine according to claim 1, characterized in that: The outer walls of the heater (4) and the evaporator (5) are both provided with a heat-insulating layer.

5. The extraction and concentration system for liquid medicine according to claim 1, characterized in that: A vacuum pump interface for connecting to a vacuum pump is provided above the receiving tank (7).

6. The extraction and concentration system for liquid medicine according to claim 1, characterized in that: The liquid medicine extraction tank (1) and the heater (4) are both provided with a steam inlet pipe interface and a steam outlet pipe interface for the entry and exit of heating steam.

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