Falling film concentrator for preparing Chinese patent medicine

Abstract

The utility model relates to a falling film concentrator for preparing Chinese patent medicine, which comprises a concentration cylinder, a heating cylinder fixedly arranged on the side wall of the concentration cylinder, a bent pipe arranged at the bottom end of the concentration cylinder, the bent pipe penetrating through the heating cylinder, a sealing cover arranged at the top end of the heating cylinder, a steam inlet pipe arranged at the upper end of the sealing cover, and a communicating pipe arranged inside the heating cylinder. The top end of the communicating pipe is bent, penetrates through the heating pipe and is inserted into the concentrating cylinder. The utility model relates to the technical field of liquid medicine concentration equipment. According to the falling film concentrator for preparing the Chinese patent medicine, liquid medicine in the concentration barrel can enter the bent pipe under the influence of gravity, when the liquid medicine enters the bent pipe, a gap is formed between the grading rod and the inner wall of the bent pipe, so that the liquid medicine forms a thin medicine film, and after hot steam enters the heating barrel, the liquid medicine is separated from the heating barrel; a medicine film can be rapidly heated, so that the heating efficiency can be effectively improved, and the medicine liquid concentration efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical liquid concentration equipment, and in particular to a falling film concentrator for the preparation of traditional Chinese medicine. Background Technology

[0002] The working principle of a falling film concentrator is as follows: the liquid to be concentrated enters the heater from the top and is evenly distributed into the heating tubes through a falling film distributor. Under the action of rapid flow of secondary steam and the gravity of the material itself, the material flows naturally downwards in a film form along the inner wall of the tube and is heated and evaporated for concentration.

[0003] Chinese Patent Publication No. CN221713575U discloses a high-efficiency concentrator for traditional Chinese medicine (TCM) preparations. The concentrator includes: a concentration tank; a sealing cover disposed on the concentration tank; a passage cavity formed on the concentration tank; a placement rack fixedly installed at the bottom of the sealing cover; a filter frame disposed on the placement rack; and a feeding mechanism disposed within the sealing cover and the filter frame, the feeding mechanism assisting in the discharge of the TCM liquid from the filter frame. The high-efficiency concentrator for TCM preparations provided by this invention has the advantages of convenient filtration of TCM liquid, reduced operation steps, and improved overall production efficiency.

[0004] However, since the cavity is located inside the wall of the concentration tank, when steam enters, it can only heat the area near the edge of the concentration tank, making it difficult to heat the center of the concentration tank. Therefore, the concentration efficiency is low. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a falling film concentrator for the preparation of traditional Chinese medicine, so as to solve the technical problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A falling film concentrator for preparing traditional Chinese medicine includes a concentrator cylinder, a heating cylinder fixedly mounted on the side wall of the concentrator cylinder, a bent tube at the bottom end of the concentrator cylinder passing through the heating cylinder, a sealing cap at the top end of the heating cylinder, a steam inlet pipe at the upper end of the sealing cap, a connecting pipe inside the heating cylinder, the top end of the connecting pipe being bent and passing through the heating cylinder and inserted inside the concentrator cylinder, a stirring structure being provided at the bottom end of the connecting pipe and the top end of the bent tube, and a steam exhaust cap at the top end of the concentrator cylinder.

[0008] Furthermore, the stirring structure includes a connecting ring, both ends of which are provided with positioning grooves, and the connecting pipe and the bent pipe are rotatably connected to the connecting ring through the positioning grooves. A positioning rod is rotatably provided inside the connecting ring, and both ends of the positioning rod are fixedly connected to the pipe walls of the bent pipe and the connecting pipe, respectively. Several guide vanes are provided on the outer peripheral wall of the connecting ring.

[0009] Furthermore, a grading rod is rotatably provided on the outer peripheral wall of the positioning rod, the top end of the grading rod is rotatably connected to the bottom end of the connecting ring, and there is a gap between the outer peripheral wall of the grading rod and the inner wall of the bent tube.

[0010] Furthermore, a drive motor is provided at the bottom of the steam exhaust cover, and a stirring rod is provided at the bottom of the drive motor, with the stirring rod and the drive motor being coaxially arranged.

[0011] Furthermore, the bottom end of the heating cylinder is provided with an extension cylinder, which is sleeved on the outer peripheral wall of the bent tube, and a steam exhaust pipe is provided at the end of the extension cylinder away from the heating cylinder.

[0012] Furthermore, a steam pipe is provided at the top of the steam discharge cover, and a condensation chamber is provided at the end of the steam pipe.

[0013] In summary, this utility model has at least one of the following beneficial technical effects:

[0014] 1. This is a falling film concentrator for preparing traditional Chinese medicine. Due to the influence of gravity, the liquid medicine inside the concentrator enters the inside of the bent tube. When the liquid medicine enters the inside of the bent tube, a gap is formed between the classifier rod and the inner wall of the bent tube, so that the liquid medicine forms a thin film. After the hot steam enters the inside of the heating cylinder, it can quickly heat the film medicine, thereby effectively improving the heating efficiency and thus improving the efficiency of liquid medicine concentration.

[0015] 2. This falling film concentrator for preparing traditional Chinese medicine uses guide vanes. When steam enters the heating tube through the steam inlet pipe, the thrust of the steam can push the guide vanes, causing the connecting ring to rotate. The rotation of the connecting ring stirs the medicine liquid inside the bending tube, allowing the medicine film formed by the medicine liquid to fully contact the bending tube, thereby improving the heating efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the structure of a falling film concentrator for preparing traditional Chinese medicine according to this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of a falling film concentrator for preparing traditional Chinese medicine according to this utility model.

[0019] Figure 3 This is a cross-sectional view of the heating cylinder of a falling film concentrator for preparing traditional Chinese medicine according to this utility model.

[0020] Figure 4 This is a cross-sectional view of the bent tube of a falling film concentrator for preparing traditional Chinese medicine according to this utility model.

[0021] Figure 5 This is a planar sectional view of the bent tube of a falling film concentrator for preparing traditional Chinese medicine according to this utility model.

[0022] In the diagram, 1. Concentrating cylinder; 2. Heating cylinder; 3. Bending pipe; 4. Sealing cover; 5. Steam inlet pipe; 6. Connecting pipe; 7. Stirring structure; 71. Connecting ring; 72. Positioning groove; 73. Positioning rod; 74. Guide vane; 75. Grading rod; 8. Steam exhaust cover; 9. Drive motor; 10. Stirring rod; 11. Extension cylinder; 12. Steam exhaust pipe; 13. Steam pipe; 14. Condensation chamber. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings. Example

[0024] Reference Figure 1 - Figure 5 This utility model discloses a falling film concentrator for preparing traditional Chinese medicine, including a concentrator cylinder 1, a heating cylinder 2 fixedly installed on the side wall of the concentrator cylinder 1, a bent pipe 3 installed at the bottom end of the concentrator cylinder 1, the bent pipe 3 passing through the heating cylinder 2, a sealing cover 4 installed at the top end of the heating cylinder 2, a steam inlet pipe 5 installed at the upper end of the sealing cover 4, a connecting pipe 6 installed inside the heating cylinder 2, the top end of the connecting pipe 6 being bent and passing through the heating pipe and inserted into the inside of the concentrator cylinder 1, a stirring structure 7 being installed at the bottom end of the connecting pipe 6 and the top end of the bent pipe 3, and a steam exhaust cover 8 being installed at the top end of the concentrator cylinder 1.

[0025] In this embodiment, during use, the medicine to be concentrated is filled into the inside of the concentration cylinder 1 through the filling hole provided on the top side of the concentration cylinder 1. The steam inlet pipe 5 is connected to the hot steam pipe 13 (existing technology) so that hot steam can enter the inside of the heating cylinder 2. Due to the influence of gravity, the medicine inside the concentration cylinder 1 will enter the inside of the bent pipe 3. After the hot steam enters the inside of the heating cylinder 2, it will heat the medicine. After the medicine is heated, the hot steam inside the bent pipe 3 will push the medicine upward and enter the inside of the connecting pipe 6. The heated medicine is then introduced into the inside of the concentration cylinder 1 through the connecting pipe 6. This cycle is repeated so that the medicine continuously moves inside the bent pipe 3 and the connecting pipe 6. The medicine is continuously heated by the steam in conjunction with the heating cylinder 2, so that the medicine can be fully heated to improve the efficiency of medicine concentration.

[0026] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, the stirring structure 7 includes a connecting ring 71, with positioning grooves 72 at both ends of the connecting ring 71. The connecting pipe 6 and the bent pipe 3 are rotatably connected to the connecting ring 71 through the positioning grooves 72. A positioning rod 73 is rotatably provided inside the connecting ring 71. The two ends of the positioning rod 73 are fixedly connected to the pipe walls of the bent pipe 3 and the connecting pipe 6, respectively. Several guide vanes 74 are provided on the outer peripheral wall of the connecting ring 71.

[0027] In this embodiment, the connecting ring 71, in conjunction with the positioning groove 72, connects the connecting pipe 6 and the bent pipe 3, enabling the connecting rod and the bent pipe 3 to communicate with each other. The positioning rod 73 further enhances the stability of the connection between the connecting ring 71 and the connecting pipe 6 and the bent pipe 3. Furthermore, the guide vane 74, when steam enters the heating pipe through the steam inlet pipe 5, ensures... Figure 4 The cross-sectional view of the bent tube shown shows that the thrust of the steam can drive the guide vane 74, which in turn causes the connecting ring 71 to rotate. The rotation of the connecting ring 71 stirs the liquid inside the bent tube 3, allowing the liquid to fully contact the bent tube 3, thereby improving the heating efficiency.

[0028] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, a grading rod 75 is rotatably provided on the outer peripheral wall of the positioning rod 73. The top end of the grading rod 75 is rotatably connected to the bottom end of the connecting ring 71. There is a gap between the outer peripheral wall of the grading rod 75 and the inner wall of the bent tube 3.

[0029] In this embodiment, the gap between the grading rod 75 and the inner wall of the bent tube 3 allows the drug solution to form a thinner drug film, such as... Figure 5The planar cross-sectional view of the bent tube 3 shown shows that 31 is the gap between the grading rod 75 and the bent tube 3. The liquid medicine can only be discharged into the interior of the connecting tube 6 through the gap 31, which can effectively reduce the thickness of the liquid medicine during flow and thus improve the heating efficiency of the liquid medicine.

[0030] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, a drive motor 9 is provided at the bottom of the steam discharge cover 8, and a stirring rod 10 is provided at the bottom of the drive motor 9, with the stirring rod 10 and the drive motor 9 being coaxially arranged.

[0031] In this embodiment, as Figure 2 The schematic diagram of the internal structure of the concentration cylinder shown shows that the driving motor 9, in conjunction with the stirring rod 10, continuously stirs the liquid medicine inside the concentration cylinder 1, making the liquid medicine heated more evenly and improving the uniformity of the concentrated liquid medicine.

[0032] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, the bottom end of the heating cylinder 2 is provided with an extension cylinder 11, and the extension cylinder 11 is sleeved on the outer peripheral wall of the bent tube 3. A steam discharge pipe 12 is provided at the end of the extension cylinder 11 away from the heating cylinder 2.

[0033] In this embodiment, the steam discharge pipe 12 is used to discharge the steam inside the heating cylinder 2, so as to avoid the steam from condensing inside the heating cylinder 2 and prevent the loss of steam heat, which would cause the temperature inside the heating cylinder 2 to fail to rise.

[0034] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, a steam pipe 13 is provided at the top of the steam discharge cover 8, and a condensation chamber 14 is provided at the end of the steam pipe 13.

[0035] In this embodiment, the steam pipe 13 is used to discharge the steam generated during the evaporation of the medicine in the concentration cylinder 1, and the condensation chamber 14 is used to recover the steam from the medicine, thus preventing the steam from flowing back into the interior of the concentration cylinder 1.

[0036] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A falling film concentrator for preparing traditional Chinese medicine, characterized in that, The device includes a concentrator (1), a heating cylinder (2) is fixedly installed on the side wall of the concentrator (1), a bent pipe (3) is installed at the bottom end of the concentrator (1), the bent pipe (3) passes through the heating cylinder (2), a sealing cover (4) is installed at the top end of the heating cylinder (2), a steam inlet pipe (5) is installed at the upper end of the sealing cover (4), a connecting pipe (6) is installed inside the heating cylinder (2), the top end of the connecting pipe (6) is bent and passes through the heating cylinder and is inserted into the inside of the concentrator (1), the bottom end of the connecting pipe (6) and the top end of the bent pipe (3) are both provided with a stirring structure (7), and a steam exhaust cover (8) is installed at the top end of the concentrator (1).

2. The falling film concentrator for preparing traditional Chinese medicine according to claim 1, characterized in that, The stirring structure (7) includes a connecting ring (71), both ends of which are provided with positioning grooves (72), and the connecting pipe (6) and the bent pipe (3) are rotatably connected to the connecting ring (71) through the positioning grooves (72). A positioning rod (73) is rotatably provided inside the connecting ring (71), and both ends of the positioning rod (73) are fixedly connected to the pipe walls of the bent pipe (3) and the connecting pipe (6) respectively. Several guide vanes (74) are provided on the outer peripheral wall of the connecting ring (71).

3. The falling film concentrator for preparing traditional Chinese medicine according to claim 2, characterized in that, The positioning rod (73) has a rotatable grading rod (75) on its outer peripheral wall. The top end of the grading rod (75) is rotatably connected to the bottom end of the connecting ring (71). There is a gap between the outer peripheral wall of the grading rod (75) and the inner wall of the bent tube (3).

4. A falling film concentrator for preparing traditional Chinese medicine according to claim 3, characterized in that, The bottom of the steam exhaust cover (8) is provided with a drive motor (9), and the bottom of the drive motor (9) is provided with a stirring rod (10), and the stirring rod (10) and the drive motor (9) are coaxially arranged.

5. A falling film concentrator for preparing traditional Chinese medicine according to claim 4, characterized in that, The bottom end of the heating cylinder (2) is provided with an extension cylinder (11), and the extension cylinder (11) is sleeved on the outer peripheral wall of the bent pipe (3). The end of the extension cylinder (11) away from the heating cylinder (2) is provided with a steam discharge pipe (12).

6. A falling film concentrator for preparing traditional Chinese medicine according to claim 5, characterized in that, The top of the steam discharge cover (8) is provided with a steam pipe (13), and the end of the steam pipe (13) is provided with a condensation chamber (14).

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