Traditional Chinese medicine material moisture detection device

Abstract

The invention relates to the technical field of medicinal material moisture detection devices, and discloses a traditional Chinese medicinal material moisture detection device. A first weighing device, wherein the first weighing device is fixed on the base; a second weighing device, wherein the second weighing device is fixed on the base; the hollow heat preservation cylinder is fixedly connected to the top of the first weighing machine and used for containing medicinal materials to be dried; the heat preservation cover is arranged at the top of the hollow heat preservation cylinder, and the top of the heat preservation cover is connected with an output pipe; and the heating mechanism is arranged on the inner wall of the hollow heat preservation cylinder. According to the traditional Chinese medicine material moisture detection device, the separation mechanism is arranged, air flow is fully condensed in the spiral pipe, condensed water is collected into the water storage tank in a centralized mode and weighed through the second weighing machine, the moisture content of a medicine material can be accurately reflected in combination with the real-time weight change of the first weighing machine, and the accuracy and stability of a detection result are guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medicinal material moisture detection devices, in particular to a traditional Chinese medicinal material moisture detection device. BACKGROUND

[0002] The traditional Chinese medicinal material moisture detection device is mainly used for accurately measuring the moisture content of traditional Chinese medicinal materials, traditional Chinese medicinal decoction pieces, Chinese patent medicines and pharmaceutical raw materials, and is a key equipment for guaranteeing the quality of medicinal materials, preventing mildew and deterioration, controlling production processes and meeting the standards of Chinese Pharmacopoeia.

[0003] In the existing traditional Chinese medicinal material moisture detection device, the moisture in the medicinal materials is evaporated by heating, and then the moisture content is measured by weighing or a simple condensation collection method. However, due to the single condensation structure design and short airflow path, the water vapor cannot be fully condensed, resulting in some water being directly discharged with the gas, incomplete collection of condensed water, and affecting the accuracy of the detection results. In addition, the existing technology relies only on a single weighing method to obtain detection data, and it is difficult to simultaneously verify the change in the quality of the medicinal materials and the weight of the condensed water, so the detection precision and stability are insufficient. SUMMARY

[0004] Technical problems solved In view of the deficiencies of the prior art, the present application provides a traditional Chinese medicinal material moisture detection device, which solves the problems of incomplete water collection, insufficient detection precision and stability of the traditional Chinese medicinal material moisture detection device due to the single condensation structure and short airflow path.

[0005] (II) Technical solutions In order to achieve the above object, the present application provides the following technical scheme: A traditional Chinese medicine material moisture detection device, comprising: a base; a first weighing device fixed on the base; a second weighing device fixed on the base; a hollow heat preservation cylinder fixedly connected to the top of the first weighing device for placing the medicine to be dried; a heat preservation cover provided on the top of the hollow heat preservation cylinder, the top of the heat preservation cover being connected with an output pipe; a heating mechanism provided on the inner wall of the hollow heat preservation cylinder for heating and drying the medicine in the hollow heat preservation cylinder; a filtering mechanism provided on the bottom of the heat preservation cover for filtering organic volatile oil and low-boiling-point components in hot air; a separation mechanism provided on the filtering mechanism for separating water molecules in hot air; an auxiliary cooling mechanism provided on the base for helping the separation mechanism to cool better; the separation mechanism comprises a first bellows, one end of the first bellows being fixedly connected to the output pipe, the other end of the first bellows being fixedly connected with a first spiral pipe, the bottom of the first spiral pipe being connected with a positioning nipple, the bottom of the positioning nipple being connected with a water storage tank, the end of the positioning nipple away from the first spiral pipe being connected with a second spiral pipe, the top of the second spiral pipe being fixedly connected with a second bellows, the end of the second bellows away from the second spiral pipe being fixedly connected with a return pipe, and the top of the second weighing device being fixedly connected with the water storage tank.

[0006] Preferably, the inner wall of the hollow heat preservation cylinder is double-layer hollow for heat preservation.

[0007] Preferably, the heating mechanism comprises a hard disc block fixedly connected to the inner wall bottom of the hollow heat preservation cylinder, the top of the hard disc block being provided with mesh eyes, the inner wall top of the hard disc block being connected with a heating element, the inner wall bottom of the hard disc block being fixedly connected with a first fan, and the end of the return pipe away from the second bellows being connected to the side wall of the hard disc block.

[0008] Preferably, the filtering mechanism comprises a through cylinder detachably connected to the bottom of the heat preservation cover, the inner wall of the through cylinder being sequentially connected with a hydrophobic organic adsorption layer and a hydrophobic microporous membrane, and the output pipe being in communication with the inner wall of the through cylinder.

[0009] Preferably, the auxiliary cooling mechanism comprises a support rod, one end of the support rod is fixedly connected to the top of the base, the other end of the support rod is fixedly connected with a hollow tank, the bottom of the hollow tank is symmetrically connected with two inclined hollow cylinders, the inner wall of the inclined hollow cylinder is fixedly connected with a semiconductor refrigeration sheet, the inner wall of the inclined hollow cylinder is symmetrically provided with a second fan and a third fan, the second fan is located on one side of the semiconductor refrigeration sheet for refrigeration, the third fan is located on one side of the semiconductor refrigeration sheet for heating, the outer wall of the inclined hollow cylinder is fixedly connected with a controller, the inner wall of the hollow tank is fixedly connected with a temperature sensor at the top, the temperature sensor is connected with the controller through a signal line, and the controller is connected with the semiconductor refrigeration sheet, the second fan and the third fan through a signal line.

[0010] Preferably, a sealing ring is arranged between the heat preservation cover and the hollow heat preservation cylinder to prevent the leakage of hot gas.

[0011] Preferably, a bending part is arranged on the pipe wall of the output pipe to buffer the airflow.

[0012] Preferably, a spacer frame is arranged between the hydrophobic organic adsorption layer and the hydrophobic microporous membrane to ensure the stability of the airflow channel.

[0013] Preferably, a reinforcing collar is arranged on the outer wall of the positioning nipple to improve the connection stability.

[0014] (Three) beneficial effects Compared with the prior art, the present application provides a traditional Chinese medicine material moisture detection device, which has the following beneficial effects: 1. The traditional Chinese medicine material moisture detection device utilizes the separation mechanism, the airflow is fully condensed in the spiral pipe, the condensed water is collected in the water storage tank, and the second weighing device is used for weighing, the real-time weight change of the first weighing device can accurately reflect the moisture content of the medicine material, and the accuracy and stability of the detection result are ensured.

[0015] 2. The traditional Chinese medicine material moisture detection device utilizes the heating mechanism, the hard disc block cooperates with the heating piece and the first fan to uniformly heat and quickly dry the medicine material layer, avoids local overheating or insufficient heating, improves the moisture release efficiency of the medicine material, and provides a stable gas source for detection.

[0016] 3. The traditional Chinese medicine material moisture detection device utilizes the filtering mechanism, the airflow is purified by the two-stage purification of the hydrophobic organic adsorption layer and the hydrophobic microporous membrane, which can effectively remove organic volatile oil, low-boiling-point components and liquid drop impurities, ensure that the airflow entering the separation mechanism is single, improve the accuracy of the condensed liquid and the moisture of the medicine material, and improve the detection precision.

[0017] 4、 The moisture detection device for traditional Chinese medicinal materials utilizes the auxiliary cooling mechanism, the semiconductor refrigeration piece and the fan form a closed loop temperature control under the driving of the controller, can stably adjust the temperature of the condensation environment, enhances the airflow condensation effect, avoids the influence of external environment fluctuation on the separation efficiency, and thus guarantees the reliability and repeatability of the detection process.

[0018] 5、 The moisture detection device for traditional Chinese medicinal materials utilizes the reflux pipe, the gas forms a closed circulation flow in the device, the moisture in the gas can participate in the separation process for multiple times, avoids the incomplete single separation from leading to the moisture discharge, and thus significantly improves the integrity of the moisture separation and the stability of the detection result.

[0019] 6、 The moisture detection device for traditional Chinese medicinal materials utilizes the filter mechanism installed in the high-temperature area at the top of the hollow heat preservation cylinder, can avoid the condensate from gathering on the surface of the filter layer, prevents the liquid drops from blocking the hydrophobic organic adsorption layer and the hydrophobic microporous membrane, improves the durability and separation efficiency of the filtration, and guarantees the long-term accuracy of the detection.

[0020] 7、 The moisture detection device for traditional Chinese medicinal materials utilizes the double-weighing linkage of the first weighing device and the second weighing device, the first weighing device detects the weight change of the medicinal materials in real time, the second weighing device detects the weight change of the condensed water in the water storage tank, and the combination of the two realizes cross verification, improves the reliability and credibility of the detection data.

[0021] 8、 The moisture detection device for traditional Chinese medicinal materials utilizes the flexible isolation of the first bellows and the second bellows, can avoid the weight, temperature expansion or vibration of the external device from being transmitted to the second weighing device, guarantees the weighing process from being disturbed, and thus improves the anti-interference ability and precision of the overall detection. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic view of the whole of the application; Figure 2 It is a structure schematic view of the hollow heat preservation cylinder section of the application; Figure 3 It is a structure schematic view of the hard disc block section of the application; Figure 4 It is a structure schematic view of the heat preservation cover section of the application; Figure 5 It is a structure schematic view of the through cylinder section of the application; Figure 6 It is a structure schematic view of the support rod of the application; Figure 7 It is a structure schematic view of the hollow tank section of the application; Figure 8 It is a structure schematic view of the inclined hollow cylinder section of the application; Figure 9Structure diagram of the separating mechanism of the present application.

[0023] In the figure: 1, hollow heat preservation cylinder; 2, heating mechanism; 21, hard disc block; 22, mesh eye; 23, heating piece; 24, first fan; 3, filtering mechanism; 31, through cylinder; 32, hydrophobic organic adsorption layer; 33, hydrophobic microporous membrane; 34, output pipe; 4, separating mechanism; 41, first bellows; 42, first spiral pipe; 43, positioning nipple; 44, water storage tank; 45, second spiral pipe; 46, second bellows; 47, return pipe; 5, auxiliary cooling mechanism; 51, support rod; 52, hollow tank; 53, oblique hollow cylinder; 54, semiconductor refrigeration sheet; 55, second fan; 56, third fan; 57, controller; 58, temperature sensor; 6, first scale; 7, second scale; 8, heat preservation cover; 9, base. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0025] Please refer to Figures 1-9, a moisture detection device for traditional Chinese medicine, comprising: a base 9; a first weighing device 6, the first weighing device 6 is fixed on the base 9; a second weighing device 7, the second weighing device 7 is fixed on the base 9; a hollow heat-insulating cylinder 1, the hollow heat-insulating cylinder 1 is fixedly connected to the top of the first weighing device 6, for placing the medicinal materials to be dried; a heat-insulating cover 8, the heat-insulating cover 8 is arranged on the top of the hollow heat-insulating cylinder 1, and the top of the heat-insulating cover 8 is connected to an output pipe 34; a heating mechanism 2, the heating mechanism 2 is arranged on the inner wall of the hollow heat-insulating cylinder 1, for heating and drying the medicinal materials in the hollow heat-insulating cylinder 1; a filtering mechanism 3, the filtering mechanism 3 is arranged at the bottom of the heat-insulating cover 8, for filtering organic volatile oils and low-boiling-point components in the hot air; a separating mechanism 4, the separating mechanism 4 is arranged on the filtering mechanism 3, for separating water molecules in the hot air; an auxiliary cooling mechanism 5, the auxiliary cooling mechanism 5 is arranged on the base 9, for helping the separating mechanism 4 to cool better;The separating mechanism 4 comprises a first bellow 41, one end of the first bellow 41 is fixedly connected to the output pipe 34, the other end of the first bellow 41 is fixedly connected with a first spiral pipe 42, the bottom of the first spiral pipe 42 is connected with a positioning connector 43, the bottom of the positioning connector 43 is connected with a water storage tank 44, the end of the positioning connector 43 away from the first spiral pipe 42 is connected with a second spiral pipe 45, the top of the second spiral pipe 45 is fixedly connected with a second bellow 46, the end of the second bellow 46 away from the second spiral pipe 45 is fixedly connected with a return pipe 47, the top of the second weighing device 7 is fixedly connected with the water storage tank 44, the upward airflow in the hollow heat preservation cylinder 1 after heating is mainly water vapor and a small amount of impurities, the hot gas in the hollow heat preservation cylinder 1 enters the first bellow 41 through the output pipe 34 first, the bellow has flexibility, which is convenient for connecting with external components and buffering the airflow, then the airflow enters the first spiral pipe 42, after the airflow enters the first spiral pipe 42, the rotating flow is formed under the guidance of the spiral structure, the flow path of the gas is prolonged, and the contact area between the gas and the pipe wall is greatly increased, so that the water vapor is gradually condensed on the pipe wall, the condensed droplets flow along the pipe wall to the positioning connector 43, and finally collect in the water storage tank 44, the gas part continues to enter the second spiral pipe 45 through the positioning connector 43, the second spiral pipe 45 increases the cooling length, the cooling path and the heat transfer area of this part are increased on the basis of the first spiral pipe 42, the condensation effect is further strengthened, and it is ensured that the residual moisture is fully separated, then the gas is discharged through the second bellow 46 to the return pipe 47, the gas-liquid separation and stable exhaust are realized, the water storage tank 44 is fixed on the second weighing device 7, the weight change of the water storage tank 44 and the first spiral pipe 42, the positioning connector 43 and the second spiral pipe 45 connected with the water storage tank 44 can accurately calculate the amount of water lost by the medicinal materials, since the first bellow 41 and the second bellow 46 are flexible elements, axial expansion and certain bending deformation can occur, when the external pipeline or device generates force due to weight, vibration or displacement, the bellow can absorb these forces through its elastic deformation, in this way, the water storage tank 44 and the directly connected components thereof and the second weighing device 7 below will not bear external additional weight or stress, so as to ensure the weighing accuracy, the inner wall of the hollow heat preservation cylinder 1 is double-layer hollow, which is used for heat preservation.

[0026] The heating mechanism 2 comprises a hard disc block 21 fixedly connected to the inner wall bottom of the hollow heat preservation cylinder 1, the top of the hard disc block 21 is provided with a mesh hole 22, the inner wall top of the hard disc block 21 is connected with a heating piece 23, the inner wall bottom of the hard disc block 21 is fixedly connected with a first fan 24, and one end of the return pipe 47 away from the second bellows 46 is connected to the side wall of the hard disc block 21. In the working process of the device, the heating mechanism 2 plays a role in heating and circulating the airflow in the hollow heat preservation cylinder 1. The hard disc block 21 is fixedly installed at the inner wall bottom of the hollow heat preservation cylinder 1 as the base of the heating mechanism 2, which ensures the stability of the overall structure. The top of the hard disc block 21 is provided with a mesh hole 22, so that the internal airflow can pass through uniformly, avoiding the accumulation of heat in the local area and causing uneven heating of the medicinal materials. The inner wall top of the hard disc block 21 is fixedly installed with a heating piece 23. The heating piece 23 generates heat after being electrified and heats the hard disc block 21 and the gas above it. At the same time, the inner wall bottom of the hard disc block 21 is fixedly installed with a first fan 24. When the first fan 24 is started, it will push the airflow to flow, so that the hot air generated by the heating piece 23 is uniformly delivered upward through the mesh hole 22, thereby forming a stable hot air flow field in the hollow heat preservation cylinder 1. Turning on the first fan 24 drives the hot air generated by the heating piece 23 to be uniformly delivered upward, thereby drying the medicinal materials.

[0027] The filtering mechanism 3 comprises a through cylinder 31 which is detachably connected to the bottom of the heat preservation cover 8, a hydrophobic organic adsorption layer 32 and a hydrophobic microporous membrane 33 are sequentially connected to the inner wall of the through cylinder 31, and an output pipe 34 is in communication with the inner wall of the through cylinder 31. In the device, the filtering mechanism 3 is used for purifying and separating the hot gas stream rising in the hollow heat preservation cylinder 1, and the structure and principle are as follows: the through cylinder 31 is detachably connected to the bottom of the heat preservation cover 8, when the gas stream rises from the inside of the hollow heat preservation cylinder 1, it first enters the inner cavity of the through cylinder 31, the through cylinder 31 serves as the main channel of the filtering mechanism 3, which is used for defining the flow direction of the gas stream and providing installation support for the filtering assembly, the hydrophobic organic adsorption layer 32 and the hydrophobic microporous membrane 33 are sequentially arranged on the inner wall of the through cylinder 31, when the gas stream passes through, it first contacts the hydrophobic organic adsorption layer 32, the hydrophobic organic adsorption layer 32 has strong selective adsorption capacity for organic matter, can preferentially adsorb and intercept the organic vapor or impurity molecules entrained therein, avoid entering the subsequent pipeline, and play a role of purification and impurity removal, after the gas stream passes through the hydrophobic organic adsorption layer 32, it continues to enter the hydrophobic microporous membrane 33, the hydrophobic microporous membrane 33 has micron-level pore size, can effectively block liquid droplets or particulate impurities from penetrating, while allowing gaseous water vapor to pass through smoothly, thereby realizing efficient isolation of liquid droplets and solid powders, avoiding that the medicine powder enters the pipeline system with the gas stream, finally, the purified gas stream is communicated with the inner wall of the through cylinder 31 through the output pipe 34 and is output, ensuring that the gas entering the separation mechanism 4 does not contain organic volatile oil and low-boiling-point components, avoiding that the organic volatile oil and low-boiling-point components enter the separation mechanism 4, affecting the judgment of water content, if the organic volatile oil and low-boiling-point components are not removed, these substances will be collected with water during condensation, resulting in that the mass of the weighed liquid is larger, thereby overestimating the actual water content of the medicinal material, affecting the accuracy of the detection result.

[0028] The auxiliary cooling mechanism 5 comprises a support rod 51, one end of the support rod 51 is fixedly connected to the top of the base 9, the other end of the support rod 51 is fixedly connected with a hollow tank 52, the bottom of the hollow tank 52 is symmetrically connected with two inclined hollow cylinders 53, the inner wall of the inclined hollow cylinder 53 is fixedly connected with a semiconductor refrigeration fin 54, the inner wall of the inclined hollow cylinder 53 is symmetrically provided with a second fan 55 and a third fan 56, the second fan 55 is located on the side of the semiconductor refrigeration fin 54 which is refrigerated, the third fan 56 is located on the side of the semiconductor refrigeration fin 54 which is heated, the outer wall of the inclined hollow cylinder 53 is fixedly connected with a controller 57, the inner wall top of the hollow tank 52 is fixedly connected with a temperature sensor 58, the temperature sensor 58 is connected with the controller 57 through a signal line, the controller 57 is connected with the semiconductor refrigeration fin 54, the second fan 55 and the third fan 56 through a signal line, the first spiral pipe 42 and the second spiral pipe 45 are located in the inside of the hollow tank 52, the auxiliary cooling mechanism 5 is fixed on the base 9 through the support rod 51, which ensures the stability of the overall installation, the hollow tank 52 is fixed on the other end of the support rod 51 and used as a main cooling cavity, the bottom of the hollow tank 52 is symmetrically connected with two inclined hollow cylinders 53, the inner wall of the inclined hollow cylinder 53 is fixedly connected with a semiconductor refrigeration fin 54, when the controller 57 drives the semiconductor refrigeration fin 54 to work, the cold end of the semiconductor refrigeration fin 54 generates cold energy which directly acts on the airflow, the first spiral pipe 42 and the second spiral pipe 45 through the second fan 55, realizing rapid cooling, the heat released by the hot end of the semiconductor refrigeration fin 54 is discharged through the third fan 56, avoiding heat accumulation, the temperature sensor 58 is fixed on the inner wall top of the hollow tank 52, which is used for real-time detection of the gas temperature of the cooling cavity and transmits the detection signal to the controller 57, the controller 57 automatically adjusts the working state of the semiconductor refrigeration fin 54, the second fan 55 and the third fan 56 according to the signal, thereby realizing closed-loop temperature control.

[0029] A sealing ring is arranged between the heat preservation cover 8 and the hollow heat preservation cylinder 1 for preventing the hot gas from leaking out, a bending part is arranged on the pipe wall of the output pipe 34 for buffering the airflow, an isolation frame is arranged between the hydrophobic organic adsorption layer 32 and the hydrophobic microporous membrane 33 for ensuring the stability of the airflow channel, and a reinforcing sleeve ring is arranged on the outer wall of the positioning through hole 43 for improving the connection stability.

[0030] In summary, the traditional Chinese medicinal material moisture detection device, when in use, first places the medicinal material to be detected in the hollow heat preservation cylinder 1, the hollow heat preservation cylinder 1 is fixed on the top of the first weighing device 6, the first weighing device 6 can weigh the weight change of the medicinal material in real time, then the heat preservation cover 8 is covered on the top of the hollow heat preservation cylinder 1, the heat preservation cover 8 and the hollow heat preservation cylinder 1 are tightly fitted through the sealing ring to prevent the hot gas from leaking out and ensure the stability of the heating environment.

[0031] When the device is powered on, the heating mechanism 2 located at the bottom of the inner wall of the hollow heat preservation cylinder 1 starts to work. The hard disc block 21 serves as the base of the heating mechanism 2 and is fixedly installed at the bottom of the inner wall of the hollow heat preservation cylinder 1, thereby ensuring the stability of the whole. The top of the hard disc block 21 is provided with a mesh hole 22, which facilitates the uniform upward flow of hot air and avoids uneven heating of the medicinal materials. The inner wall of the top of the hard disc block 21 is fixedly provided with a heating element 23, which generates heat and heats the internal airflow after being powered on. At the same time, the inner wall bottom of the hard disc block 21 is provided with a first fan 24, which pushes the hot air to be uniformly delivered to the medicinal material layer through the mesh hole 22 during operation, thereby realizing the rapid and uniform drying of the medicinal materials.

[0032] With the heating process, the water vapor, organic volatile oil and low-boiling-point components released from the medicinal materials flow upward along the airflow. First, the airflow passes through the filtering mechanism 3 installed at the bottom of the heat preservation cover 8. The penetrating cylinder 31 is fixed at the bottom of the heat preservation cover 8 as an airflow channel. When the hot airflow in the hollow heat preservation cylinder 1 flows upward into the penetrating cylinder 31, the airflow first contacts the hydrophobic organic adsorption layer 32 arranged on the inner wall. The hydrophobic organic adsorption layer 32 is composed of porous materials with strong hydrophobicity and organic affinity, such as activated carbon fiber. The surface of the activated carbon fiber has strong hydrophobicity and abundant pore structure, which can effectively adsorb organic molecules. This layer can preferentially adsorb and intercept the organic volatile oil and low-boiling-point components in the airflow through physical adsorption and intermolecular forces, while showing low affinity for water molecules, allowing water vapor to pass through smoothly. Thus, the selective removal of organic matter is achieved when the airflow passes through, avoiding the mixing of organic components in the subsequent condensate, which can cause measurement deviation. Subsequently, the airflow continues to enter the hydrophobic microporous membrane 33, which is made of hydrophobic materials such as polytetrafluoroethylene, a typical high-hydrophobic material commonly used in hydrophobic membrane filtration. The membrane pore size is in the micron range, and the pore wall has a large contact angle with water. Liquid water needs to overcome capillary pressure to enter the pore, and liquid droplets and powder cannot break through this threshold pressure under normal operating pressure, so they are effectively blocked outside the membrane. Gas water vapor molecules can easily pass through the membrane pores under the driving of diffusion and pressure difference, thus allowing only gaseous water vapor to pass through while blocking liquid droplets and solid impurities. After two-stage purification by the hydrophobic organic adsorption layer 32 and the hydrophobic microporous membrane 33, the final composition of the airflow entering the output pipe 34 is mainly water vapor and a small amount of inert gas, without organic volatile oil, low-boiling-point components or liquid droplet impurities. This ensures that the gas entering the separation mechanism 4 in the subsequent condensation process forms a condensate with a single composition, mainly water, thereby enabling the liquid mass in the water storage tank 44 to truly reflect the amount of water lost in the medicinal materials, improving the water content detection accuracy based on weighing and ensuring the purity of the gas entering the separation mechanism 4.

[0033] And the filtering mechanism 3 is fixed at the bottom of the heat preservation cover 8 and located at the top area of the inner wall of the hollow heat preservation cylinder 1, which is relatively high in temperature during the working process. The higher temperature makes it difficult for condensed water to precipitate or stay on the surface of the filtering mechanism 3, which can effectively prevent liquid droplets from adhering to and blocking the pores of the hydrophobic organic adsorption layer 32 and the hydrophobic microporous membrane 33, thereby improving the separation performance of the filtering mechanism 3 and preventing the filtration efficiency from being reduced or measurement errors from being caused by liquid droplet aggregation.

[0034] The purified gas flow enters the separation mechanism 4. The gas flow first enters the first bellows 41, which has a flexible characteristic for buffering the gas flow and absorbing external vibrations to avoid affecting the weighing accuracy below. Then the gas flow enters the first spiral tube 42, which forms a rotating flow under the action of the spiral structure, prolongs the flow path and increases the pipe wall heat transfer area, so that the water vapor gradually condenses. The condensed liquid droplets flow along the pipe wall to the positioning nozzle 43 and finally enter the water storage tank 44 below to collect. Part of the uncondensed gas continues to enter the second spiral tube 45 through the positioning nozzle 43. The tube further prolongs the cooling path and enhances heat transfer, strengthening the condensation effect of water vapor. The residual gas is then output through the second bellows 46 and discharged through the backflow pipe 47, finally realizing gas-liquid separation and stable air exhaust. During the gas flow condensation process, the stored liquid water is concentrated and collected in the water storage tank 44. The water storage tank 44 is fixed on the second weighing device 7. By weighing the weight change of the water storage tank 44 and the first spiral tube 42, the positioning nozzle 43 and the second spiral tube 45 directly connected thereto, the amount of water lost by the medicinal material can be accurately calculated. Since the first bellows 41 and the second bellows 46 provide flexible isolation, the weight, temperature expansion or vibration of external devices will not be transmitted to the second weighing device 7, thereby ensuring the accuracy of the weighing result.

[0035] The air discharged through the backflow pipe 47 will return to the hard disc block 21. The air discharged through the backflow pipe 47 reenters the hard disc block 21, so that the gas forms a closed circulation flow inside the device. In the circulation process, the water contained in the gas can be repeatedly separated by the separation mechanism 4, thereby realizing the effect of repeated separation, avoiding incomplete separation of water due to single separation, ensuring that the water can be fully removed, improving the stability of the separation effect and the accuracy of the detection result.

[0036] In order to further improve the condensation efficiency, the device is provided with an auxiliary cooling mechanism 5 which is fixed on the base 9 through a support rod 51 to ensure stable structure, and the other end of the support rod 51 is fixed with a hollow tank 52 which is used as a main cooling cavity, the bottom of the hollow tank 52 is symmetrically connected with two inclined hollow cylinders 53, the inner wall of the hollow cylinders 53 is fixed with semiconductor refrigerating fins 54, under the driving of the controller 57, the cold end of the semiconductor refrigerating fins 54 absorbs heat and the air flow blown by the second fan 55 quickly cools the first spiral tube 42 and the second spiral tube 45, while the heat released by the hot end of the semiconductor refrigerating fins 54 is timely discharged by the third fan 56 to avoid temperature rise in the cavity, the temperature sensor 58 detects the cooling cavity temperature in real time and feeds back to the controller 57, the controller 57 automatically adjusts the running state of the semiconductor refrigerating fins 54, the second fan 55 and the third fan 56, so as to realize closed-loop temperature control and ensure stable and reliable condensation effect of the separating mechanism 4.

[0037] Through the above steps, the device can realize that the first weighing device 6 measures the real-time weight of medicinal materials, the second weighing device 7 measures the weight of condensed water, and the moisture content of medicinal materials can be accurately calculated by combining the data of the two, so as to realize rapid and accurate detection of the moisture content of traditional Chinese medicinal materials.

[0038] It should be noted that, in this document, the relationship terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

Claims

1. A moisture detection device for Chinese medicinal materials, characterized by: include: Base (9); A first weighing device (6), wherein the first weighing device (6) is fixed on the base (9); a second weighing device (7), wherein the second weighing device (7) is fixed on the base (9); A hollow heat-insulating cylinder (1), the hollow heat-insulating cylinder (1) being fixedly connected to the top of the first weighing device (6) and used for placing medicinal materials to be dried; A heat-insulating cover (8), the heat-insulating cover (8) being arranged on the top of the hollow heat-insulating cylinder (1), the top of the heat-insulating cover (8) being connected to an output pipe (34); A heating mechanism (2), the heating mechanism (2) being arranged on the inner wall of the hollow heat-insulating cylinder (1) and being used for heating and drying the medicinal materials in the hollow heat-insulating cylinder (1); A filtering mechanism (3), the filtering mechanism (3) being arranged at the bottom of the heat-insulating cover (8) and being used for filtering organic volatile oils and low-boiling-point components in the hot air; A separation mechanism (4), the separation mechanism (4) being arranged on the filtering mechanism (3) and being used to separate water molecules in the hot air; An auxiliary cooling mechanism (5), the auxiliary cooling mechanism (5) being arranged on the base (9) and used to help the separation mechanism (4) to be cooled better; The separation mechanism (4) comprises a first bellows (41), one end of the first bellows (41) is fixedly connected to the output pipe (34), the other end of the first bellows (41) is fixedly connected to a first spiral tube (42), the bottom of the first spiral tube (42) is connected to a positioning head (43), the bottom of the positioning head (43) is connected to a water storage tank (44), the end of the positioning head (43) away from the first spiral tube (42) is connected to a second spiral tube (45), the top of the second spiral tube (45) is fixedly connected to a second bellows (46), the end of the second bellows (46) away from the second spiral tube (45) is fixedly connected to a return pipe (47), and the top of the second weighing device (7) is fixedly connected to the water storage tank (44).

2. A moisture detection device for Chinese medicinal materials according to claim 1, characterized in that: The inner wall of the hollow heat-insulating cylinder (1) is double-layered and hollow, and is used for heat preservation.

3. The moisture detection device for Chinese medicinal materials according to claim 1, characterized in that: The heating mechanism (2) comprises a hard disc block (21), the hard disc block (21) is fixedly connected to the bottom of the inner wall of the hollow heat-insulating cylinder (1), a mesh hole (22) is provided on the top of the hard disc block (21), a heating element (23) is connected to the top of the inner wall of the hard disc block (21), a first fan (24) is fixedly connected to the bottom of the inner wall of the hard disc block (21), and an end of the return pipe (47) away from the second corrugated pipe (46) is connected to the side wall of the hard disc block (21).

4. The moisture detection device for Chinese medicinal materials according to claim 1, characterized in that: The filtering mechanism (3) comprises a through-tube (31), which is detachably connected to the bottom of the heat-insulating cover (8), and the inner wall of the through-tube (31) is sequentially connected with a hydrophobic organic adsorption layer (32) and a hydrophobic microporous membrane (33), and the output pipe (34) is in communication with the inner wall of the through-tube (31).

5. The moisture detection device for Chinese medicinal materials according to claim 1, characterized in that: The auxiliary cooling mechanism (5) includes a support rod (51), one end of the support rod (51) is fixedly connected to the top of the base (9), the other end of the support rod (51) is fixedly connected to a hollow tank (52), the bottom of the hollow tank (52) is symmetrically connected to two oblique hollow cylinders (53), the inner wall of the oblique hollow cylinder (53) is fixedly connected to a semiconductor refrigeration plate (54), and the inner wall of the oblique hollow cylinder (53) is symmetrically provided with a second fan (55) and a third fan (56), the second fan (55) is located on the cooling surface of the semiconductor refrigeration plate (54). The third fan (56) is located on the side where the semiconductor refrigeration plate (54) is heated. The outer wall of the oblique hollow cylinder (53) is fixedly connected to a controller (57). The top of the inner wall of the hollow tank (52) is fixedly connected to a temperature sensor (58). The temperature sensor (58) is connected to the controller (57) via a signal line. The controller (57) is connected to the semiconductor refrigeration plate (54), the second fan (55), and the third fan (56) via a signal line. The first spiral tube (42) and the second spiral tube (45) are located inside the hollow tank (52).

6. The moisture detection device for Chinese medicinal materials according to claim 1, characterized in that: A sealing ring is provided between the heat-insulating cover (8) and the hollow heat-insulating cylinder (1) to prevent heat from leaking out.

7. The moisture detection device for Chinese medicinal materials according to claim 1, characterized in that: A bending portion is provided on the wall of the output pipe (34) for buffering airflow.

8. The moisture detection device for Chinese medicinal materials according to claim 1, characterized in that: An isolation frame is provided between the hydrophobic organic adsorption layer (32) and the hydrophobic microporous membrane (33) to ensure the stability of the airflow channel.

9. The moisture detection device for Chinese medicinal materials according to claim 1, characterized in that: The outer wall of the positioning through-head (43) is provided with a reinforcing collar for improving connection stability.

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