A liquid preparation system

Abstract

The utility model discloses a kind of liquid preparation systems, including liquid preparation tank, liquid storage tank, filling machine, first filter and second filter connected by pipeline, pipeline is provided with downward inclination gradient along fluid flow direction, first filter includes cylinder and adjusting device, filter core is equipped in cylinder, bottom surface is equipped with outlet, side wall is equipped with liquid inlet pipe, liquid inlet pipe is set towards filter core along the radial direction of cylinder, liquid inlet pipe side wall is equipped with liquid inlet, the end of liquid inlet pipe towards filter core is equipped with flow guide plate, adjusting device includes baffle, support and magnetic ring, support and baffle are connected, support is installed in liquid inlet pipe and can rotate relative to liquid inlet pipe, support is equipped with at least one magnet and hollow part, magnet is installed in the side wall of support, baffle can shield part liquid inlet, magnetic ring is sleeved in liquid inlet pipe.The utility model provides a kind of liquid preparation system, realize low liquid medicine residue in filling process, while avoid liquid medicine impact filter core and control liquid medicine flow, improve filtration efficiency.

Description

Technical Field

[0001] This invention relates to the field of pharmaceutical solution preparation technology, and in particular to a solution preparation system. Background Technology

[0002] In many industries such as pharmaceuticals and bioengineering, liquid preparation systems are crucial production equipment, and their performance directly affects product quality, production efficiency, and cost control. However, traditional liquid preparation systems are limited by pipeline design and valve structure, resulting in serious problems with drug residue. This not only leads to drug waste and increased costs but may also cause cross-contamination of subsequent products, affecting purity and quality.

[0003] Furthermore, filters in traditional solution preparation systems typically employ an inverted T-shaped structure or a side-inlet / bottom-outlet layout. The inverted T-shaped structure experiences significant flow resistance and is prone to leaving residue. In the side-inlet / bottom-outlet layout, the inlet pipe faces the filter element directly, causing the filter element to be directly impacted upon entry, potentially leading to filter damage. Additionally, the side-inlet design makes it difficult to control the flow rate of the solution, hindering its adaptability to solutions of varying viscosities and impacting filtration efficiency. Utility Model Content

[0004] In view of the problems existing in the current liquid preparation system, this utility model provides a liquid preparation system with a reasonable structure, which achieves low drug residue during the filling process, avoids drug impact on the filter element, and can control the drug flow rate to improve filtration efficiency.

[0005] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0006] A liquid preparation system includes a preparation tank, a storage tank, a filling machine, a first filter, and a second filter. The storage tank and the filling machine are located below the preparation tank. The preparation tank and the first filter are connected via a first pipeline, the first filter and the second filter are connected via a second pipeline, the second filter and the storage tank are connected via a third pipeline, and the storage tank and the filling machine are connected via a fourth pipeline. The first, second, third, and fourth pipelines are all sloped downwards along the fluid flow direction. The first filter includes a cylinder and an adjusting device. The device includes a filter element, a liquid outlet on the bottom surface of the cylinder, and a liquid inlet pipe on the side wall of the cylinder. The liquid inlet pipe is arranged radially toward the filter element and has a liquid inlet on its side wall. A guide plate is provided at one end of the liquid inlet pipe facing the filter element. The adjustment device includes a baffle, a support member, and a magnetic ring. The support member is connected to the baffle and is installed inside the liquid inlet pipe and can rotate relative to the liquid inlet pipe. The support member has at least one magnet and a hollow part. The magnets are installed at intervals along the circumference of the support member on the side wall of the support member. The baffle can block at least part of the liquid inlet. The magnetic ring is sleeved inside the liquid inlet pipe.

[0007] According to one aspect of the present invention, the baffle and the liquid inlet are configured as arc-shaped.

[0008] According to one aspect of the present invention, in the circumferential direction of the liquid inlet pipe, the central angle of the liquid inlet is greater than the central angle of the baffle.

[0009] According to one aspect of the present invention, the support member includes a star-shaped frame and a connecting rod. The outer peripheral wall of the star-shaped frame abuts against the inner peripheral wall of the liquid inlet pipe. The star-shaped frame is connected to the baffle through the connecting rod. The star-shaped frame is provided with a plurality of mounting slots, and the magnet is disposed in the mounting slot.

[0010] According to one aspect of the present invention, the connecting rod includes a pivot portion that extends in a direction away from the support member and is rotatably connected to the guide plate.

[0011] According to one aspect of the present invention, the slope value of the first pipeline, the second pipeline, the third pipeline and the fourth pipeline is 2%.

[0012] According to one aspect of the present invention, the liquid preparation tank is provided with a liquid outlet at the bottom, and the liquid outlet is connected to the first pipeline through a zero dead angle diaphragm valve.

[0013] According to one aspect of the present invention, a compressed air purging mechanism is connected to the liquid preparation tank and the first filter.

[0014] According to one aspect of the present invention, the liquid preparation tank is connected to a first weighing system, a fully suspended stirring system, and a breathing system.

[0015] According to one aspect of this utility model, a pressure sensor and a second weighing system are connected to the liquid storage tank.

[0016] According to one aspect of the present invention, pressure sensors are provided on the first pipeline, the second pipeline, the third pipeline and the fourth pipeline.

[0017] Advantages of this invention: A liquid preparation system includes a preparation tank, a storage tank, a filling machine, a first filter, and a second filter. The preparation tank, storage tank, filling machine, first filter, and second filter are connected by pipelines. These pipelines have a downward slope along the fluid flow direction, ensuring the liquid is completely drained under gravity, effectively reducing residue. A height difference exists between the inlet and outlet of the filter. Under gravity, the liquid flows smoothly through the filter element and out through the lower outlet, completely transferring the liquid to the storage tank and preventing residue. Simultaneously, a guide plate is provided at the end of the inlet pipe facing the filter element, limiting the direct impact of the liquid on the filter element and allowing it to flow out from the inlet on the side wall of the inlet pipe, reducing filter element wear and extending its service life. By setting up an adjustment device, the user rotates the magnetic ring, which drives the magnet to rotate, thereby rotating the support and baffle. At this time, the baffle rotates relative to the liquid inlet, adjusting the size of the liquid inlet opening in the circumferential direction of the liquid inlet pipe. This ensures that the filter element can efficiently filter liquids of different viscosities, effectively improving filtration efficiency and enhancing the practicality of the liquid filter. Furthermore, the tank breathing system ensures pressure balance within the tank. The first and second weighing systems monitor the liquid transmitted from the dispensing tank and pipelines, respectively. Through monitoring by the first and second weighing systems, automatic material transfer and residual control are achieved. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in 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.

[0019] Figure 1 This is a schematic diagram of the liquid preparation system described in this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the filter of this utility model;

[0021] Figure 3This is a cross-sectional view of the filter of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the adjustment device of this utility model;

[0023] Figure 5 This is a schematic diagram of the installation of the support component of this utility model.

[0024] Figure 1-5 In the diagram, 1. Liquid preparation tank; 2. Liquid storage tank; 3. Filling machine; 4. First pipeline; 5. Second pipeline; 6. Third pipeline; 7. First filter; 8. Second filter; 9. First zero-residue combination valve; 10. Second zero-residue combination valve; 11. Third zero-residue combination valve; 12. Fourth zero-residue combination valve; 13. First compressed air purging mechanism; 14. Second compressed air purging mechanism; 15. Bottom valve; 16. Pressure sensor; 17. Inlet pipeline; 18. Exhaust pipeline; 19. Exhaust valve; 20. Inlet valve; 21. First weighing device. System; 22. Fully Suspended Mixing System; 23. Second Weighing System; 100. Cylinder; 110. Filter Element; 120. Liquid Inlet Pipe; 121. Liquid Inlet; 122. Guide Plate; 130. Liquid Outlet; 140. Tank Body; 141. End Cap; 142. Air Outlet; 150. Base; 160. Sanitary Clamp; 200. Adjustment Device; 210. Baffle; 220. Support Component; 221. Hollowed-out Part; 222. Star-shaped Frame; 2221. Mounting Groove; 223. Connecting Rod; 2231. Rotating Shaft; 230. Magnetic Ring. Detailed Implementation

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1 to 5 As shown, a liquid preparation system includes a preparation tank 1, a storage tank 2, a filling machine 3, a first filter 7, and a second filter 8. The storage tank 2 and the filling machine 3 are located below the preparation tank 1. The preparation tank 1 and the first filter 7 are connected by a first pipe 4. The first filter 7 and the second filter 8 are connected by a second pipe 5. The second filter 8 and the storage tank 2 are connected by a third pipe 6. The storage tank 2 and the filling machine 3 are connected by a fourth pipe. The first pipe 4, the second pipe 5, the third pipe 6, and the fourth pipe are all sloped downwards along the fluid flow direction. The filter includes a cylinder 100 and an adjusting device 200. A filter element 110 is provided inside the cylinder 100. A liquid outlet 130 is provided on the bottom surface of the cylinder 100. An inlet pipe 120 is provided on the side wall of the cylinder 100. The inlet pipe 120 is radially toward the filter element from the cylinder 100. 110 is configured such that the side wall of the inlet pipe 120 is provided with an inlet port 121, and the end of the inlet pipe 120 facing the filter element 110 is provided with a guide plate 122. The adjusting device 200 includes a baffle 210, a support member 220 and a magnetic ring 230. The support member 220 is connected to the baffle 210. The support member 220 is installed inside the inlet pipe 120 and can rotate relative to the inlet pipe 120. The support member 220 is provided with... At least one magnet and a perforated portion 221 through which the liquid medicine passes. The magnet is installed at intervals along the circumference of the support member 220 on the side wall of the support member 220. The baffle 210 can block at least part of the liquid inlet 121. The magnetic ring 230 is sleeved inside the liquid inlet pipe 120. Rotating the magnetic ring 230 drives the baffle 210 to rotate through the magnet, thereby adjusting the size of the opening of the liquid inlet 121 in the circumference of the liquid inlet pipe 120.

[0030] In practical applications, the first pipe 4, the second pipe 5, the third pipe 6, and the fourth pipe are all sloped downwards along the fluid flow direction, thus ensuring that the liquid medicine can be completely drained under gravity, effectively reducing residue. There is a height difference between the inlet 121 and the outlet 130. Under gravity, the liquid medicine can smoothly pass through the filter element 110 and flow out from the lower outlet 130. Simultaneously, by setting a guide plate 122, the guide plate 122 can prevent the liquid medicine in the inlet pipe 120 from directly impacting the filter element 110, allowing the liquid medicine to flow out from the inlet 121 on the side wall of the inlet pipe 120, reducing filter element 110 wear and extending its service life. By setting the adjustment device 200, the user rotates the magnetic ring 230, which drives the magnet to rotate, thereby driving the support 220 and the baffle 210 to rotate. At this time, the baffle 210 rotates relative to the liquid inlet 121, thereby adjusting the size of the opening of the liquid inlet 121 in the circumferential direction of the liquid inlet 120. The user can adjust the size of the opening of the liquid inlet 121 according to the different viscosities of the liquid. For example, if the viscosity of the liquid is high, the user can rotate the baffle 210 away from the position of the liquid inlet 121 to increase the flow rate at the liquid inlet 121, so that the liquid flows into the cylinder 100 quickly for filtration. If the viscosity of the liquid is low, the user can rotate the baffle 210 to block the liquid inlet 121, reduce the flow rate at the liquid inlet 121, and avoid the problem of rapid accumulation of liquid leading to increased load on the filter element 110 and rapid increase in pressure inside the cylinder 100. This ensures that the filter element 110 can efficiently filter liquids of different viscosities and effectively improve the filtration efficiency.

[0031] In practical applications, the baffle 210 is designed in an arc shape. This arc shape facilitates a better fit with the inner wall of the inlet pipe 120, making it easier to adjust the opening size of the inlet 121 by rotating the baffle 210. The inlet 121 is also designed in an arc shape, allowing the liquid to flow more evenly into the cylinder 100. Furthermore, the arc-shaped inlet 121 and the baffle 210, when used together to adjust the opening size of the inlet 121, enable more precise flow control, ensuring the stability and reliability of the entire liquid preparation process.

[0032] In practical applications, the central angle α of the inlet 121 is greater than the central angle β of the baffle 210 in the circumferential direction of the inlet pipe 120. Setting the central angle α of the inlet 121 greater than the central angle β of the baffle 210 ensures that the baffle 210 will not completely block the inlet 121, always allowing the liquid to flow out. This prevents the inlet pipe 120 from becoming clogged due to the baffle 210 closing the inlet 121, and avoids pressure buildup within the inlet pipe 120, thus extending the service life of the inlet pipe 120.

[0033] In practical applications, the support member 220 includes a star-shaped frame 222 and a connecting rod 223. The star-shaped frame 222 consists of a central block and multiple supports distributed on the peripheral walls of the block. A perforated portion 221 for the liquid to pass through is formed between two adjacent frames. The outer peripheral wall of the star-shaped frame 222 abuts against the inner peripheral wall of the liquid inlet pipe 120. The star-shaped frame 222 is connected to the baffle 210 via the connecting rod 223. The star-shaped frame 222 has multiple mounting slots 2221, each of which is inlaid with a magnet. Specifically, the connecting rod 223 can be welded to the star-shaped frame 222 and the baffle 210, or it can be screwed, snapped, inserted, or glued to the star-shaped frame 222 and the baffle 210. The connection structure between the connecting rod 223 and the star-shaped frame 222 and the baffle 210 is not specifically limited, as long as the star-shaped frame 222 can stably drive the baffle 210 to rotate. By setting up a star-shaped frame 222, the magnets can be conveniently arranged and installed without affecting the flow of the liquid medicine. It can also reduce the mass of the support 220, reduce the resistance of the magnetic ring 230, and improve the ease of use of the adjustment device 200.

[0034] In practical applications, the connecting rod 223 includes a pivot portion 2231, which extends in the direction away from the support member 220 and is rotatably connected to the guide plate 122. Specifically, the end of the connecting rod 223 is inserted into a blind hole on the guide plate 122, and a small section of the rod at the middle branch point is connected to the baffle 210. By providing the pivot portion 2231, on the one hand, the pivot portion 2231 and the guide plate 122 are rotatably connected, allowing the guide plate 122 to limit the support member 220 radially in the inlet pipe 120, further improving the installation stability of the support member 220; on the other hand, the pivot portion 2231 can support the star-shaped frame 222 and guide the rotation of the connecting rod 223, effectively improving the rotational stability of the support member 220.

[0035] In practical applications, the cylinder 100 includes a body and a base 150, which are sealed together by a sanitary clamp 160. A gasket is also provided between the body and the base 150. The inlet pipe 120 is located on the side wall of the body, and the outlet 130 is located at the center of the base 150. The filter element 110 is located above the inlet pipe 120 to facilitate filtering the liquid medicine in the cylinder 100.

[0036] In practical applications, the top of the cylinder 100 is provided with a cap 141, and an outlet 142 is welded onto the cap 141. By providing the outlet 142, high-pressure gas can be discharged from the cylinder 100 during the accumulation of the liquid medicine, avoiding safety accidents caused by pressure accumulation inside the cylinder 100 and improving the safety of the liquid medicine filtration device.

[0037] In practical applications, the first pipeline 4, the second pipeline 5, the third pipeline 6, and the fourth pipeline are respectively equipped with a first zero-residue combination valve 9, a second zero-residue combination valve 10, a third zero-residue combination valve 11, and a fourth zero-residue combination valve 12. By setting up zero-residue combination valves, it is possible to effectively prevent the drug solution from remaining in the pipelines, avoid cross-contamination between different drug solutions, and ensure the purity and quality of the prepared solution. Furthermore, the slope value of the first pipeline 4, the second pipeline 5, the third pipeline 6, and the fourth pipeline is 1% to 3%, preferably 2%. Therefore, it can be ensured that the drug solution can be completely drained under gravity, effectively reducing residue.

[0038] In practical applications, pressure sensors 16 are installed on the first pipeline 4, the second pipeline 5, the third pipeline 6 and the fourth pipeline respectively in order to monitor the pressure in each pipeline in real time.

[0039] In practical applications, a first compressed air purging mechanism 13 is connected to the liquid preparation tank 1. The first compressed air purging mechanism 13 includes a compressed air purging pipeline and a gas switching valve. One end of the compressed air purging pipeline is connected to a compressed air source, and the other end is connected to the liquid preparation tank 1. The compressed air purging mechanism accelerates the emptying speed of the liquid in the liquid preparation tank 1, improving the liquid preparation efficiency. Furthermore, after liquid preparation is completed, compressed air can be used to purge the liquid preparation tank 1, further reducing drug residue.

[0040] In practical applications, the second filter 8 is connected to the second compressed air purging mechanism 14, which includes a compressed air purging pipeline and a gas switching valve. One end of the compressed air purging pipeline is connected to a compressed air source, and the other end is connected to the second filter 8.

[0041] In practical applications, the mixing tank 1 is connected to a first weighing system 21, a fully suspended stirring system 22, and a breathing system. The breathing system includes a breather, an inlet pipe 17, and an outlet pipe 18. The first end of the inlet pipe 17 is connected to compressed air, the second end of the inlet pipe 17 is connected to the first end of the breather, the outlet pipe 18 is connected to the first end of the breather, and the second end of the breather is connected to the mixing tank 1. An inlet valve 20 is installed on the inlet pipe 17, and an outlet valve 19 is installed on the outlet pipe 18. The first weighing system 21 monitors the liquid in the mixing tank 1, enabling automatic material transfer and residual control. The fully suspended stirring system 22 ensures thorough mixing of the liquid in the mixing tank 1, improving the quality of the mixed solution. The breathing system ensures pressure balance within the mixing tank 1.

[0042] In practical applications, a pressure sensor 16 and a second weighing system 23 are connected to the liquid storage tank 2. The pressure sensor 16 monitors pressure changes within the liquid storage tank 2 in real time. When abnormal pressure fluctuations occur, the system receives the relevant signals promptly and takes corresponding measures to prevent damage to the liquid storage tank 2 due to excessively high or low pressure, and to avoid affecting the normal operation of the liquid dispensing system. The second weighing system 23 accurately measures the weight of the liquid within the liquid storage tank 2, facilitating precise control and management of the liquid dispensing process.

[0043] In practical applications, the liquid preparation tank 1 is equipped with a liquid outlet at the bottom, which is connected to the first pipeline 4 via a zero-dead-angle diaphragm valve. The zero-dead-angle diaphragm valve design ensures that the liquid in the liquid preparation tank 1 is completely discharged, avoiding residue.

[0044] Advantages of this invention: A liquid preparation system includes a preparation tank, a storage tank, a filling machine, a first filter, and a second filter. The preparation tank, storage tank, filling machine, first filter, and second filter are connected by pipelines. These pipelines have a downward slope along the fluid flow direction, ensuring the liquid is completely drained under gravity, effectively reducing residue. A height difference exists between the inlet and outlet of the filter. Under gravity, the liquid flows smoothly through the filter element and out through the lower outlet, completely transferring the liquid to the storage tank and preventing residue. Simultaneously, a guide plate is provided at the end of the inlet pipe facing the filter element, limiting the direct impact of the liquid on the filter element and allowing it to flow out from the inlet on the side wall of the inlet pipe, reducing filter element wear and extending its service life. By setting up an adjustment device, the user rotates the magnetic ring, which drives the magnet to rotate, thereby rotating the support and baffle. At this time, the baffle rotates relative to the liquid inlet, adjusting the size of the liquid inlet opening in the circumferential direction of the liquid inlet pipe. This ensures that the filter element can efficiently filter liquids of different viscosities, effectively improving filtration efficiency and enhancing the practicality of the liquid filter. Furthermore, the tank breathing system ensures pressure balance within the tank. The first and second weighing systems monitor the liquid transmitted from the dispensing tank and pipelines, respectively. Through monitoring by the first and second weighing systems, automatic material transfer and residual control are achieved.

[0045] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A liquid preparation system, comprising a liquid preparation tank, a liquid storage tank, a filling machine, a first filter, and a second filter, characterized in that, The storage tank and filling machine are located below the mixing tank. The mixing tank and the first filter are connected via a first pipeline, the first filter and the second filter are connected via a second pipeline, the second filter and the storage tank are connected via a third pipeline, and the storage tank and the filling machine are connected via a fourth pipeline. The first, second, third, and fourth pipelines are all sloped downwards along the fluid flow direction. The first filter includes a cylinder and an adjusting device. A filter element is installed inside the cylinder, and the bottom surface of the cylinder is provided with… The cylinder has an outlet and an inlet pipe on its side wall. The inlet pipe is arranged radially toward the filter element. The side wall of the inlet pipe has an inlet. A guide plate is provided at one end of the inlet pipe toward the filter element. The adjustment device includes a baffle, a support member, and a magnetic ring. The support member is connected to the baffle. The support member is installed inside the inlet pipe and can rotate relative to the inlet pipe. The support member has at least one magnet and a hollow part. The magnet is installed on the side wall of the support member. The baffle can block at least part of the inlet. The magnetic ring is sleeved inside the inlet pipe.

2. The solution preparation system according to claim 1, characterized in that, The baffle and the liquid inlet are arc-shaped.

3. The solution preparation system according to claim 1, characterized in that, In the circumferential direction of the inlet pipe, the central angle of the inlet is greater than that of the baffle.

4. The solution preparation system according to claim 1, characterized in that, The support includes a star-shaped frame and a connecting rod. The outer peripheral wall of the star-shaped frame abuts against the inner peripheral wall of the liquid inlet pipe. The star-shaped frame is connected to the baffle through the connecting rod. The star-shaped frame is provided with multiple mounting slots, and the magnet is disposed in the mounting slot.

5. A solution preparation system according to claim 4, characterized in that, The connecting rod includes a pivot portion that extends in a direction away from the support member and is rotatably connected to the guide plate.

6. A solution preparation system according to claim 1, characterized in that, The slope of the first, second, third, and fourth pipelines is 2%.

7. A solution preparation system according to claim 1, characterized in that, The liquid preparation tank is provided with a liquid outlet at the bottom, and the liquid outlet is connected to the first pipeline through a zero dead angle diaphragm valve.

8. A solution preparation system according to claim 1, characterized in that, The liquid preparation tank and the first filter are connected to a compressed air purging mechanism.

9. A solution preparation system according to claim 1, characterized in that, The liquid preparation tank is connected to a first weighing system, a fully suspended stirring system, and a breathing system.

10. A solution preparation system according to claim 1, characterized in that, A pressure sensor and a second weighing system are connected to the liquid storage tank.

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