A steam circulation system for low-temperature drying of heat-sensitive Chinese patent medicines

Abstract

A kind of steam circulation system for low-temperature drying of heat-sensitive Chinese patent medicine, comprising: vacuum evaporation unit, drying application unit and condensation recovery unit, vacuum evaporation unit is connected with drying application unit, and condensation recovery unit is connected with vacuum evaporation unit.Wherein:the drying application unit includes:steam delivery pipeline, drying box, temperature controller and steam diffusion device.The utility model discloses compared with traditional technology, can accurate temperature control and control pressure balance, avoid the degradation of effective component caused by high temperature, make the component of heat-sensitive Chinese patent medicine in drying process be destroyed, while add condensation recovery unit, realize energy recycling.

Description

Technical Field

[0001] This utility model relates to the field of traditional Chinese medicine production technology, specifically to a steam circulation system for low-temperature drying of heat-sensitive traditional Chinese medicine preparations. Background Technology

[0002] Traditional drying processes for Chinese patent medicines often employ hot air circulation or direct heating with high-temperature steam, which can easily lead to the decomposition or inactivation of heat-sensitive components (such as volatile oils, polysaccharides, and enzymes). While existing low-temperature drying technologies (such as vacuum freeze-drying) can protect the components, they suffer from high energy consumption, high equipment costs, and low drying efficiency. Therefore, it is necessary to develop a drying system that combines low-temperature protection with high efficiency and energy saving.

[0003] To address the aforementioned issues, we have made a series of improvements. Utility Model Content

[0004] The purpose of this invention is to provide a steam circulation system for low-temperature drying of heat-sensitive traditional Chinese medicine preparations, so as to overcome the above-mentioned shortcomings and deficiencies of the prior art.

[0005] A steam circulation system for low-temperature drying of heat-sensitive traditional Chinese medicine preparations includes: a vacuum evaporation unit, a drying application unit, and a condensation recovery unit, wherein the vacuum evaporation unit is connected to the drying application unit, and the condensation recovery unit is connected to the vacuum evaporation unit.

[0006] The drying application unit includes a steam delivery pipeline, a drying chamber, a temperature controller, and a steam diffusion device. The steam delivery pipeline is connected to the upper end of the drying chamber, the steam delivery pipeline is connected to the vacuum evaporation unit, the steam delivery pipeline is connected to the main steam pipe, the lower end of the drying chamber is connected to the condensation recovery unit, the temperature controller is connected to the steam delivery pipeline, and the steam diffusion device is connected to the interior of the drying chamber.

[0007] Furthermore, the vacuum evaporation unit includes: a sealed evaporator, a vacuum pipeline, and a pressure sensor. The upper part of the sealed evaporator is connected to one end of the vacuum pipeline, the other end of the vacuum pipeline is connected to the drying chamber, the pressure sensor is connected to the vacuum pipeline, and the upper part of the sealed evaporator is connected to a pure water interface.

[0008] Furthermore, the condensation recovery unit includes: a diaphragm pump, a liquid level sensor, and a condensate recovery main pipe. The diaphragm pump is connected to the drying chamber and the sealed evaporator via a pipeline. The liquid level sensor is connected to the upper end of the sealed evaporator, and the condensate recovery main pipe is connected to the bottom of the sealed evaporator.

[0009] The beneficial effects of this utility model are:

[0010] Compared with traditional technologies, this invention can precisely control temperature and pressure balance, avoid degradation of effective ingredients caused by high temperature, and prevent the destruction of components in heat-sensitive traditional Chinese medicine during the drying process. At the same time, it is equipped with a condensation recovery unit to achieve energy recycling. Attached image description:

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the steam diffusion device of this utility model.

[0013] Figure label:

[0014] Vacuum evaporation unit 100, sealed evaporator 110, vacuum pipeline 120 and pressure sensor 130.

[0015] The drying application unit 200, steam conveying pipeline 210, drying chamber 220, temperature controller 230 and steam diffusion device 240.

[0016] The system includes a condensate recovery unit 300, a diaphragm pump 310, a level sensor 320, a condensate recovery main pipe 330, a steam main pipe 400, and a pure water interface 500. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0018] Example 1

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the steam diffusion device of this utility model.

[0021] like Figure 1-2 As shown, a steam circulation system for low-temperature drying of heat-sensitive traditional Chinese medicine includes: a vacuum evaporation unit 100, a drying application unit 200, and a condensation recovery unit 300. The vacuum evaporation unit 100 is connected to the drying application unit 200, and the condensation recovery unit 300 is connected to the vacuum evaporation unit 100.

[0022] The drying application unit 200 includes a steam conveying pipe 210, a drying chamber 220, a temperature controller 230, and a steam diffusion device 240. The steam conveying pipe 210 is connected to the upper end of the drying chamber 220, the steam conveying pipe 210 is connected to the vacuum evaporation unit 100, the steam conveying pipe 210 is connected to the steam main pipe 400, the lower end of the drying chamber 220 is connected to the condensation recovery unit 300, the temperature controller 230 is connected to the steam conveying pipe 210, and the steam diffusion device 240 is connected to the inside of the drying chamber 220.

[0023] The vacuum evaporation unit 100 includes: a sealed evaporator 110, a vacuum pipeline 120 and a pressure sensor 130. The upper part of the sealed evaporator 110 is connected to one end of the vacuum pipeline 120, and the other end of the vacuum pipeline 120 is connected to the drying oven 220. The pressure sensor 130 is connected to the vacuum pipeline 120, and the upper part of the sealed evaporator 110 is connected to the pure water interface 500.

[0024] The condensation recovery unit 300 includes: a diaphragm pump 310, a liquid level sensor 320, and a condensate recovery main pipe 330. The diaphragm pump 310 is connected to the drying chamber 220 and the closed evaporator 110 through a pipeline. The liquid level sensor 320 is connected to the upper end of the closed evaporator 110, and the condensate recovery main pipe 330 is connected to the bottom of the closed evaporator 110.

[0025] The principle of this invention: This steam circulation system is used for the low-temperature drying of heat-sensitive traditional Chinese medicine preparations. First, the vacuum evaporation unit 100 lowers the boiling point of water in a vacuum environment through the sealed evaporator 110. Water injected through the pure water interface 500 generates low-temperature steam, which is then transported to the drying application unit 200 through the vacuum pipeline 120. Simultaneously, the pressure sensor 130 monitors the vacuum level in the pipeline in real time to ensure stable steam generation. Subsequently, the low-temperature steam enters the drying chamber 220 of the drying application unit 200 through the steam delivery pipeline 210 and is evenly distributed by the steam diffusion device. It contacts the surface of the medicinal materials, removing moisture. The temperature controller 230 adjusts the steam temperature in real time to protect the heat-sensitive components of the medicinal materials. The humid steam evaporated in the drying chamber 220 is extracted through the vacuum pipeline 120 and enters the condensation recovery unit 300. The condensation recovery unit 300 uses a diaphragm pump 310 to transport wet steam to the condensate recovery manifold 330. Through the condensation process, the steam is converted into condensate, and a level sensor 320 monitors the condensate level to ensure a stable return of water to the bottom of the sealed evaporator 110 for continued recycling. This invention enables precise temperature control and pressure balance, preventing degradation of active ingredients due to high temperatures and ensuring the preservation of components during the drying process of heat-sensitive traditional Chinese medicines. The addition of the condensation recovery unit also enables energy recycling.

[0026] The specific embodiments of this utility model have been described above, but this utility model is not limited thereto. Various changes can be made to this utility model as long as they do not depart from its spirit.

Claims

1. A steam circulation system for low-temperature drying of heat-sensitive Chinese patent medicines, characterized by comprising: include: The system includes a vacuum evaporation unit (100), a drying application unit (200), and a condensation recovery unit (300), wherein the vacuum evaporation unit (100) is connected to the drying application unit (200), and the condensation recovery unit (300) is connected to the vacuum evaporation unit (100). The drying application unit (200) includes a steam conveying pipe (210), a drying chamber (220), a temperature controller (230), and a steam diffusion device (240). The steam conveying pipe (210) is connected to the upper end of the drying chamber (220), the steam conveying pipe (210) is connected to the vacuum evaporation unit (100), the steam conveying pipe (210) is connected to the steam main pipe (400), the lower end of the drying chamber (220) is connected to the condensation recovery unit (300), the temperature controller (230) is connected to the steam conveying pipe (210), and the steam diffusion device (240) is connected to the interior of the drying chamber (220).

2. The steam circulation system for low-temperature drying of heat-sensitive traditional Chinese medicine preparations according to claim 1, characterized in that: The vacuum evaporation unit (100) includes: a sealed evaporator (110), a vacuum pipeline (120), and a pressure sensor (130). The upper part of the sealed evaporator (110) is connected to one end of the vacuum pipeline (120), and the other end of the vacuum pipeline (120) is connected to the drying oven (220). The pressure sensor (130) is connected to the vacuum pipeline (120), and the upper part of the sealed evaporator (110) is connected to a pure water interface (500).

3. A steam circulation system for low-temperature drying of heat-sensitive traditional Chinese medicine preparations according to claim 2, characterized in that: The condensation recovery unit (300) includes: a diaphragm pump (310), a liquid level sensor (320), and a condensate recovery manifold (330). The diaphragm pump (310) is connected to the drying chamber (220) and the closed evaporator (110) through a pipeline. The liquid level sensor (320) is connected to the upper end of the closed evaporator (110), and the condensate recovery manifold (330) is connected to the bottom of the closed evaporator (110).

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