Device and method for extracting and concentrating traditional Chinese medicine liquid

Abstract

The present application discloses a Chinese medicine liquid extraction and concentration device and method, which relates to the field of Chinese medicine preparation, and comprises a frame, a concentration tank, a water storage tank, a circulation pipeline and a negative pressure pump are installed on the frame, one end of the circulation pipeline is connected to the upper end of the concentration tank, the other end of the circulation pipeline is connected to the upper end of the water storage tank, and the suction port of the negative pressure pump is connected to the inner cavity of the water storage tank; a liquid medicine barrel is arranged in the concentration tank, the concentration tank is located on the peripheral side of the liquid medicine barrel to form a heating interlayer, a steam pipeline connected to an external steam source is installed on the frame, a transfer shell is fixedly installed on the outer side of the concentration tank, a transfer area is formed between the transfer shell and the concentration tank, the heating interlayer is connected to the transfer area, and the steam pipeline is connected to the transfer area; a steam pipe is installed on the concentration tank in a vertical direction, the steam pipe is connected to the transfer area, the lower side of the steam pipe extends into the Chinese medicine liquid in the liquid medicine barrel, and a plurality of exhaust holes are opened in the circumferential direction of the lower side of the steam pipe; a switching component is arranged in the transfer shell. The present application helps to improve the heating efficiency.

Description

Technical Field

[0001] The present application relates to the field of Chinese medicine preparation, and in particular to a device and method for extracting and concentrating Chinese medicine liquid. Background Art

[0002] Traditional Chinese medicine refers to substances used for the prevention, treatment, and diagnosis of diseases under the guidance of traditional Chinese medicine theory, and has the effects of rehabilitation and health care. Traditional Chinese medicine mainly comes from natural medicines and their processed products, including herbal medicines, animal medicines, mineral medicines, and some chemical and biological products, among which herbal medicines are the majority. In actual production, the initial liquid medicine is usually concentrated. The concentrated traditional Chinese medicine has the advantages of reduced volume, convenient packaging and carrying, and enhanced efficacy.

[0003] At present, the extraction and concentration of traditional Chinese medicine liquid is usually carried out by passing the liquid into a concentration tank, and then heating it with steam. The water in the liquid evaporates and passes through the pipeline through the cooling tower to condense into water. In practice, a heating interlayer is provided around the side of the concentration tank, and steam is passed into the heating interlayer. Then the temperature of the steam is transferred to the concentration tank to heat the traditional Chinese medicine liquid.

[0004] Since the heating interlayer is located on the peripheral side of the concentration tank, the heat is also transferred from the outside to the inside, which will cause the Chinese medicine liquid in the concentration tank to be heated unevenly, that is, the heating efficiency is low. Summary of the invention

[0005] In order to improve the heating efficiency of traditional Chinese medicine liquid, the present application provides a traditional Chinese medicine liquid extraction and concentration device and method.

[0006] The present application provides a Chinese medicine liquid extraction and concentration device that adopts the following technical solution:

[0007] A Chinese medicine liquid extraction and concentration device comprises a frame, a concentration tank, a water storage tank, a circulation pipe and a negative pressure pump are installed on the frame, one end of the circulation pipe is communicated with the upper end of the concentration tank, the other end of the circulation pipe is communicated with the upper end of the water storage tank, a cooling component is arranged at one end of the circulation pipe close to the water storage tank, and the suction port of the negative pressure pump is communicated with the inner cavity of the water storage tank; a medicine liquid barrel is arranged in the concentration tank, the concentration tank is located on the peripheral side of the medicine liquid barrel to form a heating interlayer, a steam pipe communicated with an external steam source is installed on the frame, a transfer shell is fixedly installed on the outer side of the concentration tank, a transfer zone is formed between the transfer shell and the concentration tank, the heating interlayer is communicated with the transfer zone, and the steam pipe is communicated with the transfer zone; a steam pipe is installed on the concentration tank in a vertical direction, the steam pipe is communicated with the transfer zone, and the lower side of the steam pipe extends into the Chinese medicine liquid in the medicine liquid barrel A plurality of exhaust holes are circumferentially provided on the lower side of the steam pipe; a switching assembly is provided in the transfer shell, and the switching assembly realizes the switching of the steam in the steam pipe from entering the steam pipe to entering the heating insulation layer; a first inlet and a second inlet are provided on the transfer shell, and a third inlet is provided on the outer wall of the concentration tank, the steam pipe is connected with the first inlet, the steam pipe is connected with the second inlet, and the third inlet connects the heating insulation layer and the transfer zone; the switching assembly includes a first sealing door and a second sealing door, the first sealing door is slidably arranged in the transfer zone, and the second sealing door is slidably arranged in the heating insulation layer, the first sealing door is used to block the second inlet, and the second sealing door is used to block the third inlet; the transfer shell is provided with a driving member for driving the first sealing door to slide in the transfer zone, and the concentration tank is provided with a driving assembly for driving the second sealing door to slide in the heating insulation layer.

[0008] By adopting the above technical scheme, the Chinese medicine liquid is passed into the medicine liquid barrel of the concentration tank, and the negative pressure pump is started to form a vacuum negative pressure in the concentration device, thereby reducing the boiling point of water, that is, only a lower temperature is needed to achieve boiling and evaporation of water, thereby preventing high temperature from causing some medicinal properties in the Chinese medicine to be destroyed, which helps to ensure the efficacy of the Chinese medicine liquid; steam is passed from the steam pipe into the steam pipe and enters the Chinese medicine liquid from the exhaust hole. The steam directly enters the Chinese medicine liquid, which can improve the utilization rate of heat and the heating efficiency. Moreover, since a plurality of exhaust holes are arranged along the circumference of the steam pipe, when the steam enters the Chinese medicine liquid, the steam can be directly heated to a certain temperature. When the steam is in the medicine liquid, it will make the medicine liquid flow, which is helpful to make the medicine liquid evenly heated, thereby improving the concentration effect; however, because the steam is passed into the medicine liquid, the steam will also liquefy into water, and then evaporated later. If the steam is continuously passed into the medicine liquid, it will affect the concentration efficiency; therefore, when the water in the medicine liquid is heated and gradually boils and evaporates, the switching component is used to make the steam pass into the heating interlayer. At this time, the steam will no longer pass into the medicine liquid. The steam heats the medicine liquid in the heating interlayer. Because the temperature in the medicine liquid is already high, the heating interlayer The steam in the layer transfers heat to the medicine barrel, which can quickly maintain the boiling state of the Chinese medicine liquid and ensure the evaporation of water; if the steam only passes through the heating layer from beginning to end, there will be heat loss due to the transfer of heat, and it will take a long time to make the water in the Chinese medicine liquid boil and evaporate, that is, the heating efficiency is low, and the Chinese medicine liquid is heated unevenly, and the concentration efficiency is low; therefore, by directly contacting the Chinese medicine liquid with steam, the heat loss is reduced, which helps to improve the heating efficiency; and during the heating process, the steam will disturb the Chinese medicine liquid, making the Chinese medicine liquid heated more evenly, which helps to improve the concentration Effect: When steam enters the steam pipe, it will enter the transfer area from the first inlet. At this time, the second inlet is opened and the third inlet is closed. The steam will enter the steam pipe and be discharged from the exhaust pipe. The steam will directly contact the Chinese medicine liquid and drive the arc plate to rotate to stir the Chinese medicine liquid. After a period of time, when the Chinese medicine liquid has been heated and boiled, the driving component drives the second sealing door to slide, the third inlet is gradually opened, and the driving component will simultaneously drive the first sealing door to slide, and the second inlet is gradually closed, that is, switching is achieved, and the steam enters the heating compartment to heat and keep the medicine barrel warm.

[0009] Preferably, the steam vent pipe is rotatably connected to the concentrating tank, a plurality of arc-shaped plates are circumferentially arranged on the lower side of the steam vent pipe, and the steam exhaust hole is formed at one end of the arc-shaped plate away from the steam vent pipe.

[0010] By adopting the above technical solution, when steam enters the steam pipe and is ejected from the exhaust port, the steam contacts the Chinese medicine liquid, generating a boosting force on the arc plate, that is, driving all the arc plates to rotate. The arc plates rotate to stir the Chinese medicine liquid to ensure that the Chinese medicine liquid is heated evenly. During the rotation of the arc plates, steam is continuously ejected, and the area where the steam is ejected will also become larger, which will help to increase the contact area between the steam and the Chinese medicine liquid, thereby improving the heating efficiency.

[0011] Preferably, the medicine liquid barrel is lifted and slid in the concentration tank, and a sliding groove is provided on the inner wall of the concentration tank in the vertical direction, and the sliding groove is annular, and an annular sliding block is provided on the upper opening edge of the medicine liquid barrel, and the annular sliding block forms a sealed sliding fit with the sliding groove, and the concentration tank is provided with a compression spring in the sliding groove, and the compression spring is located on the lower side of the annular sliding block, one end of the compression spring is connected to the bottom wall of the sliding groove, and the other end of the compression spring is connected to the annular sliding block; the driving assembly includes a first rack, a first gear and a second rack, the first rack is located in the heating insulation layer and is arranged on the medicine liquid barrel in the vertical direction, the first gear is rotatably connected in the heating insulation layer, the first gear is meshed with the first rack, and the second rack is arranged on the second sealing door in the vertical direction, and the first gear is meshed with the second rack.

[0012] By adopting the above technical solution, the medicine barrel is raised and lowered in the concentration tank. In the initial state, there is no medicine in the medicine barrel. At this time, under the action of the compression spring, the annular slider is located at the top of the sliding groove, that is, the medicine barrel is in an ascending state. After the medicine liquid is passed into the medicine barrel, under the action of the gravity of the medicine liquid, the medicine barrel descends, and the compression spring is compressed. When the medicine barrel descends, the first rack drives the first gear to rotate, and the first gear drives the second rack to move, that is, the second sealing door is raised, and the second sealing door closes the third inlet. At this time, steam enters the steam pipe, and the steam directly enters The Chinese medicine liquid is heated in it; when the Chinese medicine liquid boils, the water therein will be evaporated, and the overall weight of the Chinese medicine liquid will gradually decrease. During the gradual decrease, the medicine liquid barrel will gradually rise, and the first rack drives the second rack to descend through the first gear, that is, the second sealing door is lowered, and the third inlet is opened, and steam can enter the heating interlayer from the third inlet. After the steam enters the heating interlayer, the steam itself will support the medicine liquid barrel upward. With the decrease in the weight of the Chinese medicine liquid, the rising speed of the medicine liquid barrel will increase, and finally the second sealing door will be fully opened.

[0013] Preferably, the driving member is configured as a connecting rod, one end of the connecting rod is hinged to the second sealing door, and the other end of the connecting rod is hinged to the first sealing door.

[0014] By adopting the above technical scheme, after the Chinese medicine liquid is passed into the medicine liquid barrel, the medicine liquid barrel drops due to gravity, the second sealing door also drops, and the first sealing door is driven to slide through the connecting rod, and the second inlet is opened; when the medicine liquid barrel gradually rises, the second rack rises, and the second sealing door drives the first sealing door to slide through the connecting rod, and the first sealing door closes the second inlet, after which steam will no longer enter the Chinese medicine liquid, and the steam heats and keeps the Chinese medicine liquid warm in the heating interlayer to maintain the boiling state of the Chinese medicine liquid.

[0015] Preferably, the cooling component is configured as a cooling jacket, which is sleeved on a side of the circulation pipe close to the water storage tank, a water inlet is formed at the lower end of the cooling jacket, and a water outlet is formed at the upper end of the cooling jacket.

[0016] By adopting the above technical solution, when water vapor flows along the circulation pipe to the cooling jacket, it absorbs heat under the action of the circulating water in the cooling jacket, so that the water vapor releases heat and liquefies into water and falls into the water storage tank. The water inlet of the cooling jacket is located at the lower side and the water outlet is located at the upper side, which can ensure that the cooling water can fill the cooling jacket, thereby ensuring the cooling effect.

[0017] Preferably, a drain pipe is fixedly installed at the bottom of the concentration tank, the upper end of the drain pipe extends into the medicine liquid barrel, and the drain pipe forms a sealed sliding fit with the bottom wall of the medicine liquid barrel, the bottom wall of the medicine liquid barrel is V-shaped, and a cover for sealing the drain pipe is provided at the upper end of the drain pipe, and the diameter of the cover is larger than the diameter of the drain pipe; a lifting hole is provided on the upper end surface of the drain pipe, and a lifting rod that slides with the lifting hole is provided on the lower side of the cover, and a reset spring is provided at the bottom of the drain pipe located in the lifting hole, the reset spring is vertically arranged, one end of the reset spring is connected to the bottom wall of the lifting hole, and the other end of the reset spring is connected to the lower end of the lifting rod.

[0018] By adopting the above technical scheme, the reset spring can make the cover block the drain pipe. When the Chinese medicine liquid in the medicine barrel boils and evaporates gradually, the medicine barrel will gradually rise. The V-shaped bottom wall of the medicine barrel will contact the cover during the rising process and drive the cover to rise. At this time, the drain pipe is opened, and the Chinese medicine liquid can enter the drain pipe and be discharged. In practice, the mass of the Chinese medicine liquid introduced into the medicine barrel is certain. When the medicine barrel rises and drives the cover to open, it means that the concentration operation of the Chinese medicine liquid has been basically completed and the drainage action can be performed. In addition, in the initial state, because the medicine barrel is in an ascending state, the cover will not block the drain pipe at this time. When the Chinese medicine liquid is introduced, the impact of the Chinese medicine liquid acts on the V-shaped bottom wall, and the impact force will cause the medicine barrel to drop. Even if the cover is closed, Chinese medicine liquid will still be discharged from the drain pipe during this process, but the amount of medicine liquid discharged in this case is very small and can be ignored.

[0019] The present application provides a method for extracting and concentrating a traditional Chinese medicine liquid using the following technical solution:

[0020] A method for extracting and concentrating a traditional Chinese medicine liquid comprises the following steps:

[0021] S1: Pass the Chinese medicine liquid into the medicine liquid barrel;

[0022] S2: The negative pressure pump operates to draw a vacuum, and steam is introduced. The steam first enters the liquid medicine barrel from the steam pipe, and the steam directly heats the liquid medicine. When the steam enters the liquid medicine, it reacts on the curved plate, and the curved plate rotates to stir the liquid medicine.

[0023] S3: When the medicine liquid boils, the water evaporates, the weight of the medicine liquid barrel decreases, and under the action of the compression spring, the medicine liquid barrel rises, driving the first rack to rise, the first rack drives the second rack to descend through the first gear, the second rack drives the second sealing door to slide, the third inlet gradually opens, the second sealing door drives the first sealing door to slide through the connecting rod, and the second inlet gradually closes. At this time, steam is introduced into the heating interlayer to maintain the boiling state of the medicine liquid;

[0024] S4: After the concentration is completed, the steam is stopped, the evaporated cooling water is discharged from the water storage tank, and the Chinese medicine liquid is discharged from the drain pipe.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. In the initial heating stage, steam is directly introduced into the medicine barrel and directly contacts the Chinese medicine liquid. The steam is discharged from multiple exhaust holes, driving the arc plate to rotate. The arc plate stirs the Chinese medicine liquid. When the steam enters the Chinese medicine liquid, the steam forms bubbles in the Chinese medicine liquid. The impact of the bubbles further stirs the Chinese medicine liquid. The Chinese medicine liquid is heated evenly by stirring the Chinese medicine liquid, which helps to improve the concentration effect. In addition, the steam directly contacts the Chinese medicine liquid and is fully and evenly in contact with the Chinese medicine liquid, which helps to improve the initial heating efficiency.

[0027] 2. After the Chinese medicine liquid is passed into the medicine liquid barrel, the medicine liquid barrel will drop due to gravity. At this time, the second inlet is opened and the third inlet is closed. Steam will enter the medicine liquid barrel from the second inlet to directly heat the Chinese medicine liquid. When the Chinese medicine liquid boils and evaporates, the weight of the medicine liquid barrel will gradually decrease. At this time, under the action of the compression spring, the medicine liquid barrel will rise, and the first gear will be driven to rotate through the first rack, and the first gear will drive the second rack to descend, that is, drive the second sealing door to descend, and realize the opening of the third inlet. When the second sealing door descends, the second sealing door drives the first sealing door to move through the connecting rod and gradually closes the second inlet. At this time, steam will enter the heating interlayer from the third inlet, and heat will be transferred to the Chinese medicine liquid through the outer wall of the medicine liquid barrel, heating and keeping the Chinese medicine liquid warm to maintain its boiling and evaporating state. During the rising process of the medicine liquid barrel, the space of the heating interlayer will gradually increase, and the amount of steam introduced will remain unchanged, but the heating effect on the medicine liquid barrel will increase, which will help to ensure sufficient and uniform heating of the Chinese medicine liquid.

[0028] 3. When the Chinese medicine liquid boils and evaporates, the medicine barrel will gradually rise, and the V-shaped bottom wall of the medicine barrel will abut against the edge of the cover, driving the cover to rise, so that the drain pipe is opened, and the Chinese medicine liquid can be discharged from the drain pipe. In practice, the amount of Chinese medicine liquid introduced is quantitative. When the cover is opened, it means that the concentration operation of the Chinese medicine liquid in the medicine barrel has been basically completed, and the drainage operation can be carried out at this time. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0030] Figure 2 This is a schematic cross-sectional structural diagram of a concentration tank in an embodiment of the present application;

[0031] Figure 3 This is a schematic diagram of the structure of the steam pipe in the embodiment of the present application;

[0032] Figure 4 for Figure 2 A partial enlarged view of middle A;

[0033] Figure 5 This is a partial structural cross-sectional view of an embodiment of the present application, mainly showing the structure of the sealing cover and the drain pipe;

[0034] Figure 6 for Figure 5 A partial enlarged view of B.

[0035] Figure numerals: 1, frame; 11, steam pipe; 2, concentration tank; 21, heating interlayer; 211, steam outlet; 22, third inlet; 23, sliding groove; 24, liquid inlet; 3, water storage tank; 31, drain outlet; 4, circulation pipeline; 5, negative pressure pump; 6, liquid medicine barrel; 61, annular slider; 62, compression spring; 7, transfer shell; 71, transfer area; 72, first inlet; 73, second inlet; 74, first fixed block; 741, first sliding groove; 75, The second fixed block; 751, the second sliding groove; 8, the steam pipe; 81, the arc plate; 82, the exhaust hole; 9, the switching assembly; 91, the first sealing door; 92, the second sealing door; 10, the cooling sleeve; 101, the water inlet; 102, the water outlet; 20, the driving assembly; 201, the first rack; 202, the first gear; 203, the second rack; 30, the drain pipe; 301, the lifting hole; 302, the reset spring; 40, the cover; 401, the lifting rod; 50, the connecting rod. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The embodiment of the present application discloses a device for extracting and concentrating a traditional Chinese medicine liquid.

[0038] Reference Figure 1 , Figure 2 and Figure 3 The Chinese medicine liquid extraction and concentration device includes a frame 1, on which a concentration tank 2, a water storage tank 3, a circulation pipe 4 and a negative pressure pump 5 are fixedly installed. One end of the circulation pipe 4 is connected to the upper end of the concentration tank 2, and the other end of the circulation pipe 4 is connected to the upper end of the water storage tank 3. The negative pressure pump 5 is located on a side of the frame 1 close to the water storage tank 3, and the air suction port of the negative pressure pump 5 is connected to the inner cavity of the water storage tank 3. A drainage port 31 is opened on the lower side of the water storage tank 3. A medicine liquid barrel 6 for containing Chinese medicine liquid is arranged in the concentrating tank 2, a heating interlayer 21 is formed on the peripheral side of the medicine liquid barrel 6 of the concentrating tank 2, and a steam outlet 211 is formed on the outer wall of the heating interlayer 21 of the concentrating tank 2; a steam pipe 11 connected to an external steam source is installed on the frame 1, a transfer shell 7 is fixedly installed on the peripheral side of the concentrating tank 2, a transfer area 71 is formed between the transfer shell 7 and the concentrating tank 2, the steam pipe 11 is connected to the transfer area 71, and the transfer area 71 is connected to the heating interlayer 21; a steam pipe 8 is installed in the vertical direction on the concentrating tank 2, the upper end of the steam pipe 8 is connected to the transfer area 71 through a connecting pipe, the lower end of the steam pipe 8 extends into the Chinese medicine liquid in the medicine liquid barrel 6, and a plurality of exhaust holes 82 are opened on the lower side of the steam pipe 8 along its circumference, and a switching component 9 is arranged in the transfer shell 7, and the switching component 9 controls the steam in the steam pipe 11 to switch from entering the steam pipe 8 to entering the heating interlayer 21.

[0039] A cooling component is provided on the side of the circulation pipe 4 close to the water storage tank 3. The cooling component is configured as a cooling sleeve 10. The cooling sleeve 10 is sleeved on the side of the circulation pipe 4 close to the water storage tank 3. A water inlet 101 is formed on the lower side of the cooling sleeve 10, and a water outlet 102 is formed on the upper side of the cooling sleeve 10.

[0040] The Chinese medicine liquid is passed into the medicine liquid barrel 6, and the negative pressure pump 5 is started to form a negative pressure environment in the device, which can reduce the boiling point of water, that is, at a lower temperature, water can boil and evaporate, which helps to prevent the efficacy of Chinese medicine from being destroyed due to excessive temperature; the steam first enters the steam pipe 8 from the steam pipe 11, and enters the medicine liquid barrel 6 to directly contact with the Chinese medicine liquid, which helps to improve the heat utilization rate of the steam and improve the initial heating efficiency. The steam is discharged from all the exhaust holes 82 of the steam pipe 8. The bubbles generated by the steam have a stirring effect on the Chinese medicine liquid, which helps to make the Chinese medicine liquid heated evenly, and then helps to improve the concentration effect of the Chinese medicine liquid. When the Chinese medicine liquid boils, the switching component 9 acts to switch the flow direction of the steam. At this time, the steam is passed into the heating interlayer 21, and the steam transfers heat from the outside to the medicine liquid barrel 6, heating and keeping the Chinese medicine warm, and maintaining the boiling and evaporation state of the Chinese medicine liquid.

[0041] That is, in the initial state of the device, the steam will first pass into the medicine barrel 6 to contact the Chinese medicine liquid, perform direct heat exchange, and improve the initial heating efficiency. When the steam is passed into the Chinese medicine liquid as a whole, because the steam itself has a certain impact force, it will disturb the Chinese medicine liquid, causing the Chinese medicine liquid to flow, thereby ensuring uniform heating; after the Chinese medicine liquid boils, the steam is passed into the heating interlayer 21 for heat preservation and heating to maintain the boiling state. Under the action of the negative pressure pump 5, the evaporated water vapor flows in the circulation channel. When the water vapor passes through the cooling sleeve 10, the heat in the water vapor is absorbed and liquefied into water, and is collected in the water storage tank 3. After the concentration operation is completed, the water can be discharged from the drain 31. Among them, the water inlet 101 of the cooling sleeve 10 is located on the lower side, and the water outlet 102 is located on the upper side, which can ensure that the cooling water can fill the cooling sleeve 10, thereby ensuring the cooling effect.

[0042] Reference Figure 2 and Figure 3 The steam pipe 8 is rotatably connected to the concentrator 2, and the connecting pipe is connected to the upper end of the steam pipe 8 through a rotating joint. A plurality of arc plates 81 are axially installed on the lower side of the steam pipe 8. The arc plates 81 are hollow and communicate with the inner cavity of the steam pipe 8. The exhaust hole 82 is formed at one end of the arc plate 81 away from the steam pipe 8. Steam enters the steam pipe 8 and the arc plate 81 and is finally discharged from the exhaust port. Since the steam has a certain impact force and the arc plate 81 is in an arc shape, the impact force of the steam on the Chinese medicine liquid will produce a reaction force, which will help the arc plate 81 to rotate, that is, all the arc plates 81 rotate in the Chinese medicine liquid, stir the Chinese medicine liquid, and ensure that the Chinese medicine liquid is heated evenly; and when the arc plate 81 rotates, the steam ejection area will also increase accordingly, thereby increasing the contact area between the steam and the Chinese medicine liquid, and further ensuring that the Chinese medicine liquid is heated evenly.

[0043] Reference Figure 2 and Figure 4 The transfer shell 7 is provided with a first inlet 72 and a second inlet 73, and the outer wall of the concentration tank 2 is provided with a third inlet 22. The steam pipe 11 is connected with the transfer area 71 through the first inlet 72, and the end of the connecting pipe away from the steam pipe 8 is connected with the second inlet 73 to achieve communication with the transfer area 71. The transfer area 71 is connected with the heating insulation layer 21 through the third inlet 22. The switching assembly 9 includes a first sealing door 91 and a second sealing door 92. The first sealing door 91 is used to block the second inlet 73, and the second sealing door 92 is used to block the third inlet 22. The transfer shell 7 is located in the transfer area 71 and is provided with a driving member for driving the first sealing door 91 to slide, and the concentration tank 2 is located in the heating insulation layer 21 and is provided with a driving assembly 20 for driving the second sealing door 92 to slide.

[0044] When the traditional Chinese medicine liquid is heated, the second inlet 73 is opened and the third inlet 22 is closed, and the steam will first enter the steam pipe 8. After a period of time, the driving component 20 drives the second sealing door 92 to slide, and the third inlet 22 gradually opens. At the same time, the driving component drives the first sealing door 91 to slide, and the second inlet 73 gradually closes, thereby realizing the switching of the steam flow direction.

[0045] The liquid medicine barrel 6 is lifted and slid in the concentration tank 2. A sliding groove 23 is provided on the inner wall of the concentration tank 2 in the vertical direction. The sliding groove 23 is arranged in an annular shape. An annular slider 61 is integrally formed on the upper opening edge of the liquid medicine barrel 6. The annular slider 61 is located in the sliding groove 23 for sliding fit. A sealing ring is embedded in the edge of the annular slider 61, so that a sealing fit is formed between the annular slider 61 and the sliding groove 23 to ensure the sealing effect of the concentration tank 2 and prevent the negative pressure effect from being affected. A compression spring 62 is installed in the sliding groove 23 of the concentration tank 2. The compression spring 62 is arranged vertically and is located on the lower side of the annular slider 61. The lower end of the compression spring 62 is connected to the bottom wall of the sliding groove 23, and the upper end of the compression spring 62 is connected to the annular slider 61.

[0046] The second inlet 73 is located on the upper side wall of the transfer shell 7, and the upper side wall of the transfer shell 7 is fixedly connected with a first fixed block 74, and a first sliding groove 741 is opened on the first fixed block 74 in the horizontal direction, and the side of the first sealing door 91 slides with the first sliding groove 741; a second fixed block 75 is fixedly connected to the inner wall of the concentration tank 2, and a second sliding groove 751 is opened on the second fixed block 75 in the vertical direction, and the side of the second sealing door 92 slides with the second sliding groove 751.

[0047] The driving assembly 20 includes a first rack 201, a first gear 202 and a second rack 203. The first rack 201 is located in the heating compartment 21 and is fixedly mounted on the outer wall of the medicine liquid barrel 6. The first rack 201 is vertically arranged. The first gear 202 is rotatably connected in the heating compartment 21 through a rotating shaft. The first gear 202 is meshed with the first rack 201. The second rack 203 is fixedly mounted on the second sealing door 92. The second rack 203 is vertically arranged. The first gear 202 is meshed with the second rack 203.

[0048] The driving member is provided as a connecting rod 50, one end of which is hinged to the second sealing door 92, and the other end of which is hinged to the first sealing door 91. When the second sealing door 92 is gradually opened, that is, the second sealing door 92 rises, the first sealing door 91 is driven to slide through the connecting rod 50, and the first sealing door 91 gradually closes the second inlet 73.

[0049] When there is no Chinese medicine liquid in the medicine liquid barrel 6, under the action of the compression spring 62, the medicine liquid barrel 6 is in an ascending state, at this time the second sealing door 92 is opened and the first sealing door 91 is closed. After the Chinese medicine liquid is integrated into the medicine liquid barrel 6, the weight of the medicine liquid barrel 6 increases, the compression spring 62 is compressed, and the medicine liquid barrel 6 descends. During the descent, the first rack 201 drives the first gear 202 to rotate, and the first gear 202 drives the second sealing door 92 to rise through the second rack 203. The second sealing door 92 rises and gradually closes the third inlet 22; when the second sealing door 92 rises, the first sealing door 91 is driven to slide through the connecting rod 50, and the second inlet 73 is gradually opened. When a certain amount of Chinese medicine liquid is completely passed into the medicine liquid barrel 6, the second inlet 73 is opened and the third inlet 22 is closed. Steam will first enter the steam pipe 8 from the second inlet 73, that is, to preliminarily heat the Chinese medicine liquid and stir the Chinese medicine liquid. After the Chinese medicine liquid boils and evaporates, the weight of the medicine liquid barrel 6 will gradually decrease due to the evaporation of water. Under the action of the compression spring 62, the medicine liquid barrel 6 gradually rises. When rising, the first rack 201 drives the second sealing door 92 to gradually descend through the first gear 202 and the second rack 203, and the third inlet 22 gradually opens. At the same time, when the second sealing door 92 rises, under the action of the connecting rod 50, the first sealing door 91 slides, and the second inlet 73 gradually closes.

[0050] In practice, there are three stages:

[0051] The first stage: the second inlet 73 is opened and the third inlet 22 is closed. At this time, the steam directly enters the Chinese medicine liquid for heating, and the arc plate 81 stirs the Chinese medicine liquid. The heat of the steam can be evenly in contact with the Chinese medicine liquid, which helps to improve the heating efficiency of the Chinese medicine liquid.

[0052] The second stage: when the Chinese medicine liquid evaporates and boils, the third inlet 22 is gradually opened and the second inlet 73 is gradually closed. In this stage, the steam will be divided, with one part directly entering the Chinese medicine liquid from the third inlet 22 and the other part entering the heating interlayer 21. Because the Chinese medicine liquid has already boiled and evaporated, if the steam continues to be directly passed into the Chinese medicine liquid, although the temperature can be maintained, the steam will also liquefy when transferring the temperature, affecting the concentration effect of the Chinese medicine liquid. Therefore, it is necessary to allow the steam to pass into the heating interlayer 21 so that the steam does not directly contact the Chinese medicine liquid. However, because the steam is transferred from the outside to the medicine barrel 6, there will be a certain transfer time. During this transfer process, steam enters the Chinese medicine liquid from the vent pipe, which can maintain the boiling state of the Chinese medicine liquid, that is, a certain buffer time is given to the steam heating in the heating interlayer 21.

[0053] The third stage: when the Chinese medicine liquid continues to evaporate, the third inlet 22 remains open and the second inlet 73 is closed. At this time, the steam will only enter the heating interlayer 21 to heat and keep the Chinese medicine liquid warm and maintain its boiling and evaporating state. When the medicine barrel 6 rises, the space of the heating interlayer 21 gradually becomes larger, that is, the amount and speed of steam input remain unchanged, but the amount of steam input into the inner shell of the heating interlayer 21 becomes larger, which helps to improve the heating effect of the Chinese medicine liquid and ensure that the Chinese medicine liquid is evenly heated.

[0054] Reference Figure 2 , Figure 5 and Figure 6 A drain pipe 30 is fixedly installed at the bottom of the concentration tank 2. The drain pipe 30 is vertically arranged. The upper end of the drain pipe 30 extends into the medicine liquid barrel 6, and the drain pipe 30 forms a sliding fit with the bottom of the medicine liquid barrel 6. A sealing ring is embedded on the surrounding side of the drain pipe 30 to achieve a sealed sliding with the medicine liquid barrel 6; the bottom of the medicine liquid barrel 6 is V-shaped, and the drain pipe 30 slides with the middle part of the V-shaped bottom wall of the medicine liquid barrel 6. The upper end of the drain pipe 30 is lifted and lowered with a cover 40 for blocking the drain pipe 30. The cover 40 is a rectangular block. The diameter of the cover 40 is larger than the diameter of the drain pipe 30. Two lifting holes 301 are provided on the upper end surface of the drain pipe 30. The two lifting holes 301 are arranged opposite to each other. A lifting rod 401 that slides with the lifting hole 301 is integrally formed on the lower side of the cover 40. A reset spring 302 is installed at the bottom of the lifting hole 301 of the drain pipe 30. The reset spring 302 is vertically arranged. The lower end of the reset spring 302 is connected to the bottom wall of the lifting hole 301, and the upper end of the reset spring 302 is connected to the lower end of the lifting rod 401.

[0055] Under the action of the reset spring 302, the cover 40 can block the drain pipe 30. When the liquid medicine barrel 6 gradually rises, the V-shaped bottom wall of the liquid medicine barrel 6 will contact the cover 40 and drive the cover 40 to rise. At this time, the drain pipe 30 is opened, and the Chinese medicine liquid can be discharged from the drain pipe 30. When the liquid medicine barrel 6 drives the cover 40 to open, it means that the concentration operation has been basically completed, and the drainage action can be performed at this time.

[0056] A liquid inlet 24 is formed on the concentration tank 2. The liquid inlet 24 is inclined and faces the V-shaped bottom wall of the medicine liquid barrel 6. When the Chinese medicine liquid is not introduced into the medicine liquid barrel 6, the medicine liquid barrel 6 is in an ascending state, and the cover 40 is also in an ascending state at this time. When the Chinese medicine liquid is introduced into the medicine liquid barrel 6, in the initial state, the Chinese medicine liquid will be discharged from the drain pipe 30. The liquid inlet 24 is inclined. When the Chinese medicine liquid is introduced into the medicine liquid barrel 6, the Chinese medicine liquid directly impacts the V-shaped bottom wall of the medicine liquid barrel 6. The impact force will cause the medicine liquid barrel 6 to drop, that is, the cover 40 will also be closed. In this process, Chinese medicine liquid will still be discharged from the drain pipe 30, but the amount of medicine liquid discharged in this case is very small and can be ignored.

[0057] The implementation principle of a Chinese medicine liquid extraction and concentration device in an embodiment of the present application is as follows: the Chinese medicine liquid is introduced into the medicine liquid barrel 6, the negative pressure pump 5 is operated and steam is introduced, the negative pressure pump 5 forms a negative pressure environment in the device, and reduces the boiling point of water; the steam first directly enters the Chinese medicine liquid from the steam pipe 8 to heat it. This method can improve the heating efficiency and reduce heat loss, and when the steam is introduced into the Chinese medicine liquid, the arc plate 81 will rotate to stir the Chinese medicine liquid so that the Chinese medicine liquid is heated evenly. After the Chinese medicine liquid boils and evaporates, the flow direction of the steam is switched and it is neatly introduced into the heating interlayer 21, transferring the heat from the outside to the medicine liquid barrel 6, heating and keeping the Chinese medicine liquid warm, and maintaining a boiling state.

[0058] The present application also discloses a method for extracting and concentrating a traditional Chinese medicine liquid, comprising the following steps:

[0059] S1: Pass the Chinese medicine liquid into the medicine liquid barrel;

[0060] S2: The negative pressure pump operates to draw a vacuum, and steam is introduced. The steam first enters the liquid medicine barrel from the steam pipe, and the steam directly heats the liquid medicine. When the steam enters the liquid medicine, it reacts on the curved plate, and the curved plate rotates to stir the liquid medicine.

[0061] S3: When the medicine liquid boils, the water evaporates, the weight of the medicine liquid barrel decreases, and under the action of the compression spring, the medicine liquid barrel rises, driving the first rack to rise, the first rack drives the second rack to descend through the first gear, the second rack drives the second sealing door to slide, the third inlet gradually opens, the second sealing door drives the first sealing door to slide through the connecting rod, and the second inlet gradually closes. At this time, steam is introduced into the heating interlayer to maintain the boiling state of the medicine liquid;

[0062] S4: After the concentration is completed, the steam is stopped, the evaporated cooling water is discharged from the water storage tank, and the Chinese medicine liquid is discharged from the drain pipe.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A Chinese medicine liquid extraction and concentration device, characterized in that: The invention comprises a frame (1), on which a concentration tank (2), a water storage tank (3), a circulation pipe (4) and a negative pressure pump (5) are installed, one end of the circulation pipe (4) is connected to the upper end of the concentration tank (2), and the other end of the circulation pipe (4) is connected to the upper end of the water storage tank (3); a cooling component is arranged at one end of the circulation pipe (4) close to the water storage tank (3); the air suction port of the negative pressure pump (5) is connected to the inner cavity of the water storage tank (3); a liquid medicine barrel (6) is arranged in the concentration tank (2), the concentration tank (2) is located on the peripheral side of the liquid medicine barrel (6) to form a heating insulation layer (21), and a steam generator (21) connected to an external steam source is installed on the frame (1). The concentrating tank (2) is provided with a transfer shell (7) fixedly mounted on the outer side of the concentrating tank (2), a transfer area (71) is formed between the transfer shell (7) and the concentrating tank (2), the heating interlayer (21) is connected to the transfer area (71), and the steam pipe (11) is connected to the transfer area (71); a steam pipe (8) is mounted on the concentrating tank (2) in a vertical direction, the steam pipe (8) is connected to the transfer area (71), the lower side of the steam pipe (8) extends into the Chinese medicine liquid in the medicine liquid barrel (6), and a plurality of steam exhaust holes (82) are opened in the circumferential direction on the lower side of the steam pipe (8); a switching component (9) is arranged in the transfer shell (7), and the switching component (9) is The steam in the steam pipe (11) is switched from entering the steam pipe (8) to entering the heating insulation layer (21); the transfer shell (7) is provided with a first inlet (72) and a second inlet (73); the outer wall of the concentration tank (2) is provided with a third inlet (22); the steam pipe (11) is connected to the first inlet (72); the steam pipe (8) is connected to the second inlet (73); the third inlet (22) enables the heating insulation layer (21) and the transfer area (71) to be connected; the switching component (9) comprises a first sealing door (91) and a second sealing door (92); the first sealing door (91) is slidably arranged in the transfer area (71); the second sealing door (92) 92) is slidably arranged on the heating insulation layer (21), the first sealing door (91) is used to block the second inlet (73), and the second sealing door (92) is used to block the third inlet (22); the transfer shell (7) is located in the transfer area (71) and is provided with a driving member for driving the first sealing door (91) to slide, and the concentration tank (2) is located in the heating insulation layer (21) and is provided with a driving component (20) for driving the second sealing door (92) to slide; the steam pipe (8) is rotatably connected to the concentration tank (2), and a plurality of arc plates (81) are circumferentially arranged on the lower side of the steam pipe (8), and the exhaust hole (82) is formed at one end of the arc plate (81) away from the steam pipe (8);The liquid medicine barrel (6) is lifted and slid in the concentration tank (2); a sliding groove (23) is provided on the inner wall of the concentration tank (2) in the vertical direction; the sliding groove (23) is annular; an annular sliding block (61) is provided on the upper opening edge of the liquid medicine barrel (6); the annular sliding block (61) and the sliding groove (23) form a sealed sliding fit; a compression spring (62) is provided in the sliding groove (23) of the concentration tank (2); the compression spring (62) is located on the lower side of the annular sliding block (61); one end of the compression spring (62) is connected to the bottom wall of the sliding groove (23); and the other end of the compression spring (62) is connected to the annular sliding block (61); the driving component (20) includes The invention comprises a first rack (201), a first gear (202) and a second rack (203), wherein the first rack (201) is located in the heating insulation layer (21) and is arranged on the liquid medicine barrel (6) in a vertical direction, the first gear (202) is rotatably connected in the heating insulation layer (21), the first gear (202) is meshed with the first rack (201), the second rack (203) is arranged on the second sealing door (92) in a vertical direction, and the first gear (202) is meshed with the second rack (203); the driving member is arranged as a connecting rod (50), one end of the connecting rod (50) is hinged to the second sealing door (92), and the other end of the connecting rod (50) is hinged to the first sealing door (91). ; 2. A Chinese medicine liquid extraction and concentration device according to claim 1, characterized in that: The cooling component is configured as a cooling sleeve (10), the cooling sleeve (10) being sleeved on a side of the circulation pipe (4) close to the water storage tank (3), the lower end of the cooling sleeve (10) being formed with a water inlet (101), and the upper end of the cooling sleeve (10) being formed with a water outlet (102).

3. A Chinese medicine liquid extraction and concentration device according to claim 1, characterized in that: A drain pipe (30) is fixedly installed at the bottom of the concentration tank (2), the upper end of the drain pipe (30) extends into the medicine liquid barrel (6), and the drain pipe (30) forms a sealing sliding fit with the bottom wall of the medicine liquid barrel (6), the bottom wall of the medicine liquid barrel (6) is V-shaped, and a cover (40) for sealing the drain pipe (30) is provided at the upper end of the drain pipe (30) in a lifting manner, and the diameter of the cover (40) is larger than the diameter of the drain pipe (30); the upper end of the drain pipe (30) is provided with a sealing cover (40) for sealing the drain pipe (30), and the diameter of the sealing cover (40) is larger than the diameter of the drain pipe (30); A lifting hole (301) is provided on the end surface, a lifting rod (401) is provided on the lower side of the cover (40) and is slidably matched with the lifting hole (301), and a reset spring (302) is provided at the bottom of the liquid discharge pipe (30) located at the lifting hole (301), and the reset spring (302) is vertically arranged, one end of the reset spring (302) is connected to the bottom wall of the lifting hole (301), and the other end of the reset spring (302) is connected to the lower end of the lifting rod (401).

4. A method for extracting and concentrating a traditional Chinese medicine liquid, characterized in that: The Chinese medicine liquid extraction and concentration device according to any one of claims 1 to 3 comprises the following steps: S1: Pass the Chinese medicine liquid into the medicine liquid barrel; S2: The negative pressure pump operates to draw a vacuum, and steam is introduced. The steam first enters the liquid medicine barrel from the steam pipe, and the steam directly heats the liquid medicine. When the steam enters the liquid medicine, it reacts on the curved plate, and the curved plate rotates to stir the liquid medicine. S3: When the medicine liquid boils, the water evaporates, the weight of the medicine liquid barrel decreases, and under the action of the compression spring, the medicine liquid barrel rises, driving the first rack to rise, the first rack drives the second rack to descend through the first gear, the second rack drives the second sealing door to slide, the third inlet gradually opens, the second sealing door drives the first sealing door to slide through the connecting rod, and the second inlet gradually closes. At this time, steam is introduced into the heating interlayer to maintain the boiling state of the medicine liquid; S4: After the concentration is completed, the steam is stopped, the evaporated cooling water is discharged from the water storage tank, and the Chinese medicine liquid is discharged from the drain pipe.

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