Steam recycling mechanism for liquid medicine purification

Abstract

The utility model discloses a steam recycling mechanism for liquid medicine purification, which comprises an evaporation chamber and a liquid medicine heater, one side of the evaporation chamber is connected with a high-temperature steam injection pipe, the other side of the evaporation chamber is connected with a steam discharge pipe, the top of the evaporation chamber is provided with a gas-liquid separator, and the liquid medicine heater is connected with the steam discharge pipe. The upper end of the gas-liquid separator is connected with a secondary steam pipe, and the steam discharge pipe and the secondary steam pipe are both communicated with the steam compressor. The steam is further heated through the heating silo to increase the temperature of the steam to form high-temperature circulating steam, the high-temperature circulating steam enters the liquid medicine heater to heat the liquid medicine, the steam subjected to heat exchange enters the liquid medicine preheater to preheat the raw material medicine, heat in the steam is utilized to the maximum extent, and the overall efficiency of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drug liquid purification, in particular to a steam recycling mechanism for drug liquid purification. Background Art

[0002] Chinese medicine is divided into Chinese patent medicine and Chinese medicinal materials according to the processing technology. Chinese medicine contains a variety of effective ingredients, ineffective ingredients and toxic ingredients. Extracting the effective ingredients and further separating and purifying them to obtain effective monomers is an important content in the field of Chinese medicine research. The extraction and purification of Chinese medicine is to use some technologies to extract the effective ingredients to the maximum extent, so as to improve the intrinsic quality and clinical treatment effect of Chinese medicine preparations. In the existing technology, the raw material liquid is a liquid used to produce raw materials. It contains more impurities and needs to be purified. The purification currently used is mostly to obtain a higher purity raw material liquid by heating and evaporation and then process it, which requires continuous heating. The existing purification equipment has a low utilization rate for the steam generated during the purification and concentration of the liquid and the steam after heat exchange in the evaporation chamber, resulting in a large part of the heat being directly discharged, thereby increasing the overall energy consumption of the purification operation. In view of this, in-depth research was conducted on the above-mentioned issues, resulting in this case. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a steam recycling mechanism for purifying liquid medicine, which solves the problems raised in the background technology.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a steam recycling mechanism for liquid medicine purification, comprising an evaporation chamber and a liquid medicine heater, one side of the evaporation chamber is connected to a high-temperature steam injection pipe, the other side of the evaporation chamber is connected to a steam exhaust pipe, a gas-liquid separator is installed on the top of the evaporation chamber, the upper end of the gas-liquid separator is connected to a secondary steam pipe, the steam exhaust pipe and the secondary steam pipe are both connected to a steam compressor, the exhaust end of the steam compressor is connected to a heating silo, one end of the heating silo is connected to the air inlet of the liquid medicine heater, the exhaust port of the liquid medicine heater is connected to the air inlet of a liquid medicine preheater, the exhaust port of the liquid medicine preheater is connected to a condensate collection system, the raw material liquid is injected into the evaporation chamber through the liquid medicine preheater, the liquid medicine heater and the liquid inlet pipe in sequence, and a forced circulation component is arranged outside the evaporation chamber.

[0005] The above-mentioned forced circulation component includes a liquid guide pipe, a circulation pump and a liquid return pipe. A concentrated liquid outlet pipe is connected to the bottom of the evaporation chamber. A three-way valve is provided on the concentrated liquid outlet pipe. One end of the liquid guide pipe is connected to an outlet of the three-way valve. The liquid inlet end of the circulation pump is connected to the liquid guide pipe. One end of the liquid return pipe is connected to the liquid discharge end of the circulation pump and the other end is connected to the evaporation chamber.

[0006] The heating silo is a cylindrical silo structure, the silo adopts a heat-insulating structure design, and a graphite heating ring is arranged in the heating silo.

[0007] Staggered wind blocking plates are arranged in the heating silo.

[0008] The evaporation chamber is a tube evaporator, a plate evaporator or a fin evaporator.

[0009] The above-mentioned evaporation chambers can be arranged in multiple groups in series or in parallel.

[0010] The utility model provides a steam recycling mechanism for liquid medicine purification. It has the following beneficial effects: the steam recycling mechanism for liquid medicine purification improves the existing liquid medicine concentration and purification equipment, compresses and heats the secondary steam generated in the concentration process with the primary steam after heat exchange with the heat source, and then further heats the steam through the heating silo to increase the steam temperature to form high-temperature circulating steam, and the high-temperature circulating steam enters the liquid medicine heater to heat the liquid medicine, and the steam after heat exchange enters the liquid medicine preheater to preheat the raw material medicine, so as to maximize the use of the heat in the steam and improve the overall efficiency of the equipment. In addition, a forced circulation component is added outside the evaporation chamber to force the liquid medicine to circulate, further improve the liquid medicine flow rate, increase the heat exchange contact area, and improve the concentration and purification operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of a steam recycling mechanism for purifying liquid medicine described in the utility model.

[0012] Figure 2 It is a schematic cross-sectional structural diagram of the heating silo described in the utility model.

[0013] In the figure: 1. Evaporation chamber; 2. Liquid heater; 3. High-temperature steam injection pipe; 4. Steam discharge pipe; 5. Gas-liquid separator; 6. Secondary steam pipe; 7. Steam compressor; 8. Heating silo; 9. Liquid preheater; 10. Condensate collection system; 11. Liquid inlet pipe; 12. Liquid guide pipe; 13. Circulation pump; 14. Liquid return pipe; 15. Graphite heating ring; 16. Wind baffle. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0016] Embodiment: In conjunction with the specification Figure 1-2 It can be seen that this scheme specifically designs a steam recycling mechanism for liquid medicine purification, which is used to solve the problem in the prior art that the utilization rate of the steam generated during the purification and concentration process of the liquid medicine and the steam after heat exchange in the evaporation chamber 1 is low, resulting in a large part of the heat being directly discharged, thereby increasing the overall energy consumption of the purification operation. The specific structure is as follows: a high-temperature steam injection pipe 3 is connected to one side of the evaporation chamber 1, a steam discharge pipe 4 is connected to the other side of the evaporation chamber 1, a gas-liquid separator 5 is installed on the top of the evaporation chamber 1, and a secondary steam pipe 6 is connected to the upper end of the gas-liquid separator 5. The steam discharge pipe 4 and the secondary steam pipe 6 are both connected to the steam compressor 7. The exhaust end of the steam compressor 7 is connected to a heating silo 8. One end of the heating silo 8 is connected to the air inlet of the liquid medicine heater 2, and the exhaust port of the liquid medicine heater 2 is connected to the air inlet of the liquid medicine preheater 9. The exhaust port of the liquid medicine preheater 9 is connected to the condensate collection system 10. The raw material liquid is injected into the evaporation chamber 1 through the liquid medicine preheater 9, the liquid medicine heater 2, and the liquid inlet pipe 11 in sequence. A forced circulation component is arranged outside the evaporation chamber 1 to improve the existing liquid medicine concentration and purification equipment. The secondary steam generated in the concentration process is compressed and heated with the primary steam after heat exchange with the heat source, and then further heated by the heating silo 8 to increase the steam temperature to form high-temperature circulating steam. The high-temperature circulating steam enters the liquid medicine heater 2 to heat the liquid medicine, and the steam after heat exchange enters the liquid medicine preheater 9 to preheat the raw materials, so as to maximize the use of the heat in the steam and improve the overall efficiency of the equipment. In addition, a forced circulation component is added outside the evaporation chamber 1 to force the liquid medicine to circulate, further increase the flow rate of the liquid medicine, increase the heat exchange contact area, and improve the concentration and purification operation efficiency.

[0017] In the specific implementation process, as a preferred setting, the above-mentioned forced circulation component includes a liquid guide pipe 12, a circulation pump 13 and a liquid return pipe 14. The bottom of the evaporation chamber 1 is connected to a concentrated liquid outlet pipe, and a three-way valve is arranged on the concentrated liquid outlet pipe. One end of the liquid guide pipe 12 is connected to an outlet of the three-way valve, and the liquid inlet end of the circulation pump 13 is connected to the liquid guide pipe 12. One end of the liquid return pipe 14 is connected to the liquid discharge end of the circulation pump 13, and the other end is connected to the evaporation chamber 1. When in use, the three-way valve is adjusted to the liquid guide pipe 12 and the discharge port of the evaporation chamber 1 is connected, and the circulation pump 13 is started. The circulation pump 13 is used to extract the medicinal liquid at the bottom of the evaporation chamber 1 through the concentrated liquid outlet pipe, and circulate it to the evaporation chamber 1 through the liquid guide pipe 12, the circulation pump 13 and the liquid return pipe 14. The external circulation method is adopted to improve the fluidity of the medicinal liquid and the heat exchange efficiency.

[0018] In the specific implementation process, as a preferred setting, the above-mentioned heating silo 8 is a cylindrical silo structure, the silo adopts an insulation structure design, and a graphite heating ring 15 is arranged in the heating silo 8. The graphite heating ring 15 is used to heat the internal space of the heating silo 8, and then the steam flowing through the heating silo 8 is further heated. The heating silo 8 is provided with staggered wind blocking plates 16. The setting of the wind blocking plates 16 can extend the flow path of the steam in the heating silo 8, extend the steam residence time for heat exchange, and ensure the heating effect.

[0019] In the specific implementation process, as a preferred configuration, the evaporation chamber 1 is a tube evaporator, a plate evaporator or a fin evaporator; the evaporation chamber 1 can be arranged in series or in parallel in multiple groups.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam recycling mechanism for liquid medicine purification, comprising an evaporation chamber and a liquid medicine heater, characterized in that: A high-temperature steam injection pipe is connected to one side of the evaporation chamber, a steam exhaust pipe is connected to the other side of the evaporation chamber, a gas-liquid separator is installed on the top of the evaporation chamber, an upper end of the gas-liquid separator is connected to a secondary steam pipe, the steam exhaust pipe and the secondary steam pipe are both connected to a steam compressor, an exhaust end of the steam compressor is connected to a heating silo, one end of the heating silo is connected to an air inlet of a liquid medicine heater, an exhaust port of the liquid medicine heater is connected to an air inlet of a liquid medicine preheater, an exhaust port of the liquid medicine preheater is connected to a condensed water collection system, the raw material liquid is injected into the evaporation chamber through the liquid medicine preheater, the liquid medicine heater and the liquid inlet pipe in sequence, and a forced circulation component is arranged outside the evaporation chamber.

2. A steam recycling mechanism for liquid medicine purification according to claim 1, characterized in that: The forced circulation component includes a liquid guide pipe, a circulation pump and a liquid return pipe. A concentrated liquid outlet pipe is connected to the bottom of the evaporation chamber. A three-way valve is provided on the concentrated liquid outlet pipe. One end of the liquid guide pipe is connected to an outlet of the three-way valve. The liquid inlet end of the circulation pump is connected to the liquid guide pipe. One end of the liquid return pipe is connected to the liquid discharge end of the circulation pump and the other end is connected to the evaporation chamber.

3. The steam recycling mechanism for liquid medicine purification according to claim 1, characterized in that: The heating silo is a cylindrical silo structure, the silo adopts a heat preservation structure design, and a graphite heating ring is arranged in the heating silo.

4. A steam recycling mechanism for liquid medicine purification according to claim 3, characterized in that: Staggered wind blocking plates are arranged in the heating silo.

5. The steam recycling mechanism for liquid medicine purification according to claim 1, characterized in that: The evaporation chamber is a tube evaporator, a plate evaporator or a fin evaporator.

6. The steam recycling mechanism for liquid medicine purification according to claim 1, characterized in that: The evaporation chambers may be arranged in series or in parallel in multiple groups.

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