Infusion pipeline and medicine supply system for roof
By installing a piston rod and a flexible scraping layer inside the infusion pipeline, the liquid is removed using air pressure, which solves the pipeline corrosion problem, extends the service life, and reduces maintenance complexity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU KONIDA ENVIRONMENTAL TECHNOLOGY CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-04-28
AI Technical Summary
The existing rooftop medicine supply system's delivery pipes are prone to corrosion during use due to the different properties of the medicine solutions, and replacement is difficult, affecting its service life.
Design an infusion pipeline with a piston column slidingly installed inside the collection and transportation pipeline. The outer surface of the piston column is provided with a flexible scraping layer. The piston column is raised and lowered by air intake and exhaust to remove residual medicine from the pipeline wall. The positioning mechanism and limit ring are combined to ensure the stable movement of the piston column.
It effectively reduces residue on pipe walls, prevents corrosion, extends pipe service life, reduces maintenance complexity, and minimizes chemical waste.
Smart Images
Figure CN224174978U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an infusion pipeline and a rooftop drug supply system, belonging to the technical field of drug delivery systems. Background Technology
[0002] Chemical supply systems employ rooftop daily-use large-capacity chemical cylinders (also called "rooftop supply systems") and provide chemical return functionality. These systems are typically used in industrial environments where high stability in chemical supply is critical. Typical applications include semiconductor manufacturing, pharmaceuticals, fine chemical production, and other high-tech industrial production lines, where the precise supply, stability, and safety of chemicals are paramount.
[0003] When a rooftop drug supply system delivers liquid medicine downwards, the central collection and transportation pipes are typically embedded in the wall to ensure safe and reliable delivery. While this method is safe and stable, the residue left on the pipe walls due to the properties of different liquid medicines (such as acidic, alkaline, and organic substances) can lead to corrosion or similar compatibility issues, resulting in a shorter actual service life of the pipes. Since the pipes are embedded in the wall, it is difficult to replace them after corrosion occurs. Therefore, it is essential to reduce the residue of liquid medicine on the pipe walls after delivery in order to improve the actual service life of the pipes. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an infusion pipeline and a rooftop drug supply system for cleaning the walls of the drug delivery pipeline. By using a scraping action, the residual drug content on the pipeline surface is reduced, which helps to delay pipeline corrosion and thus improve the actual service life of the pipeline.
[0005] To achieve the above objectives, this utility model employs the following technical solution:
[0006] On one hand, the present invention provides an infusion pipeline, including a collection and transportation pipeline arranged in a straight line. The upper end of the collection and transportation pipeline is connected to an inlet pipeline, and the lower end of the collection and transportation pipeline is connected to an outlet pipeline. An air inlet pipeline and an air extraction pipeline are connected to the upper end of the collection and transportation pipeline. A piston is slidably arranged inside the collection and transportation pipeline. A flexible scraping layer is provided on the outer surface of the piston. The air inlet pipeline and the air extraction pipeline are used to supply or extract gas into the collection and transportation pipeline to enable the piston to move within the cavity of the collection and transportation pipeline. The collection and transportation pipeline is also provided with a positioning mechanism for positioning the piston.
[0007] Specifically, the liquid inlet pipe is not located on the same straight line as the collection and transportation pipe, a first valve is installed on the liquid inlet pipe, the air inlet pipe and the air extraction pipe are connected and located at the bottom of the liquid outlet pipe or the collection and transportation pipe, a second valve is installed on the air inlet pipe, and a third valve is installed on the air extraction pipe.
[0008] Specifically, the positioning mechanism includes a mounting base fixedly installed at the top opening of the gathering and transportation pipeline. The mounting base has an opening, a locking rod is provided at the top of the piston rod, and an electromagnet is installed on the mounting base. The electromagnet is used to fix the locking rod after it extends out of the opening of the mounting base.
[0009] Specifically, the diameter at the bottom of the lever is smaller than the diameter at the top, and the output end of the electromagnet is provided with a locking part, which is used to lock onto the bottom of the lever.
[0010] Specifically, a mounting groove for installing a flexible scraping layer is provided in the middle of the piston column, and support blocks are provided on both sides of the piston column mounting groove. The diameter of the outer surface of the support block is smaller than the diameter of the flexible scraping layer.
[0011] Specifically, a limiting ring is installed at the bottom of the inside of the gathering and transportation pipeline to prevent the piston rod from deviating excessively.
[0012] On the other hand, the drug supply system provided by this utility model also includes a drug supply box, a liquid supply pipeline and a return box;
[0013] The medicine supply box is used to supply medicine to the supply pipeline and return box through the infusion pipeline;
[0014] The return box is used to supply liquid medicine to the medicine supply box through a return pipe.
[0015] Specifically, an overflow pipe is provided between the liquid supply line and the return tank.
[0016] Specifically, a collection box is provided at the outlet of the liquid supply pipeline, and an overflow pipe is provided between the collection box and the return box.
[0017] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:
[0018] This invention utilizes a piston column that slides within the gathering and transportation pipeline. By supplying and evacuating air, the piston column can move up and down to scrape residual liquid from the pipeline wall to other locations. This ensures a certain level of cleanliness on the inner wall of the gathering and transportation pipeline, prevents residual liquid from corroding the pipeline due to prolonged contact with the pipeline wall, thereby extending the service life of the pipeline located in the main output pipeline and reducing the complexity of later maintenance. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the gathering and transportation pipeline provided in this embodiment of the utility model;
[0020] Figure 2 This is a cross-sectional structural schematic diagram of the gathering and transportation pipeline provided in an embodiment of this utility model;
[0021] Figure 3 This is a schematic diagram of the piston column provided in an embodiment of the present invention;
[0022] Figure 4 This is a connection diagram of the drug supply system provided in an embodiment of the present invention;
[0023] Figure 5 This is a schematic diagram of the connection of the reflux section of the drug supply system provided in this embodiment of the utility model;
[0024] Reference numerals in the attached diagram: 1. Gathering and transport pipeline; 2. Liquid inlet pipeline; 3. Liquid outlet pipeline; 4. Air inlet pipeline; 5. Air extraction pipeline; 6. Piston column; 7. Flexible scraping layer; 8. Second valve; 9. Third valve; 10. Mounting base; 11. Clamping rod; 12. Electromagnet; 13. Support block; 14. Limiting ring; 15. Medicine supply box; 16. Liquid supply pipeline; 17. Return box; 18. Collection box; 19. First valve. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.
[0026] 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," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. 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. Thus, features 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 the internal connection of 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. Example 1:
[0028] This utility model provides an infusion pipeline for cleaning the wall surface of a drug delivery pipeline. The scraping action reduces the residual drug content on the pipeline surface, helping to delay corrosion and thus extending the pipeline's service life. To achieve this function, the pipeline includes a collection and delivery pipeline 1 arranged in a straight line. This collection and delivery pipeline 1 is the main drug flow pipeline and can be embedded inside a wall. An inlet pipeline 2 is connected to the upper end of the collection and delivery pipeline 1, and an outlet pipeline 3 is connected to the lower end. The inlet pipeline 2 and outlet pipeline 3 are the drug entry and exit points, respectively. This connection method allows for separate maintenance of the inlet pipeline 2 and outlet pipeline 3 from an easily accessible location. To extend the service life of the collection and delivery pipeline 1 and avoid frequent replacement and maintenance, an air inlet pipeline 4 and an air extraction pipeline 5 are connected to the collection and delivery pipeline 1, and a piston column 6 is slidably installed inside the collection and delivery pipeline 1. Figure 2 As shown, a flexible scraping layer 7 is provided on the outer surface of the piston rod 6. The air inlet pipe 4 and the air extraction pipe 5 are used to supply or extract gas into the gathering and transportation pipe 1, enabling the piston rod 6 to move within the chamber of the gathering and transportation pipe 1. This allows the scraping action of the flexible scraping layer 7 to clean the pipe wall. Figure 2 As shown, after the collection and transportation pipeline 1 has finished transporting the liquid medicine, the air extraction pipe 5 can be opened to extract air, allowing the piston column 6 to move downwards from the top of the collection and transportation pipeline 1. This scrapes the residual liquid on the inner wall of the collection and transportation pipeline 1 into the outlet pipe 3, greatly ensuring the cleanliness of the collection and transportation pipeline 1 and effectively preventing the residual liquid from corroding the pipe wall, thereby extending the actual service life of the collection and transportation pipeline 1. In order to ensure that the piston column 6 does not affect the passage of liquid medicine during normal transport, a positioning mechanism for positioning the piston column 6 can be provided on the collection and transportation pipeline 1. When the piston column 6 moves to the top of the collection and transportation pipeline 1, the collection and transportation pipeline 1 should remain connected to the inlet pipe 2, and the positioning mechanism should be used to position the piston column 6 to avoid affecting the normal liquid delivery.
[0029] This embodiment of the utility model provides an infusion pipeline. To clarify how to control the movement of the gas control piston 6 inside the collecting and transporting pipeline 1, the inlet pipeline 2 can be configured not to be located on the same straight line as the collecting and transporting pipeline 1. Figure 1 As shown, a first valve 19 is installed on the liquid inlet pipe 2. An air inlet pipe 4 and an air extraction pipe 5 are connected and located at the bottom of the liquid outlet pipe 3 or the collection and transportation pipe 1. A second valve 8 is installed on the air inlet pipe 4, and a third valve 9 is installed on the air extraction pipe 5. When air intake is required, the third valve 9 and the first valve 19 are closed, and the second valve 8 is opened to supply air into the collection and transportation pipe 1 (at this time, the liquid outlet pipe is also sealed), thereby using air pressure to lift the piston rod 6 to the top of the collection and transportation pipe 1. When it is necessary to control the piston rod 6 to descend, the first valve 19 and the second valve 8 are closed, and the third valve 9 is opened to extract air from the collection and transportation pipe 1. At this time, the scraped liquid will flow downwards to the return pipe or the output pipe, thus ensuring the cleanliness of the wall surface of the collection and transportation pipe 1.
[0030] This utility model embodiment provides an infusion pipeline, specifically a positioning mechanism for positioning the piston rod 6. Specifically, the positioning mechanism includes a mounting base 10 fixedly installed at the top opening of the collecting and transporting pipeline 1. Figure 2 As shown, the mounting base 10 has an opening, and a locking rod 11 is provided on the top of the piston rod 6 so that the locking rod 11 can be exposed after the piston rod 6 is pushed to the top of the gathering and conveying pipeline 1 by air pressure. Simultaneously, an electromagnet 12 is mounted on the mounting base 10. The electromagnet 12 is used to fix the locking rod 11 after it extends out of the opening of the mounting base 10. That is, the output end of the electromagnet 12 can position the locking rod 11 by means of insertion, thereby locking the piston rod 6 in the non-working position. The electromagnet 12 only moves during operation, resulting in low energy consumption. Specifically, the structure of the locking part can be referred to... Figure 1 and Figure 2 As shown, the diameter at the bottom of the clamping rod 11 is smaller than the diameter at the top. At this time, a clamping part is provided at the output end of the electromagnet 12, so that the clamping part is used to clamp the bottom of the clamping rod 11. The change in the thickness of the clamping rod 11 prevents the clamping rod 11 from falling due to gravity or fluid negative pressure.
[0031] The present invention provides an infusion pipeline. Considering that the flexible scraping layer 7 can be made thicker and have a larger elastic deformation range to ensure good scraping effect, in order to facilitate the installation of the flexible scraping layer 7, an installation groove for installing the flexible scraping layer 7 is provided in the middle of the piston column 6. In order to prevent the flexible scraping layer 7 from detaching, support blocks 13 can be provided on both sides of the installation groove of the piston column 6 for limiting its position. In addition, by setting the diameter of the outer surface of the support block 13 to be smaller than the diameter of the flexible scraping layer 7 and slightly larger than the diameter of the outer surface of the piston column 6, the piston column 6 can be effectively reduced to reduce the sway of the piston column 6 when it is transported in the gathering and transportation pipeline 1, which is beneficial to improving the smoothness of the piston column 6's movement.
[0032] In an embodiment of this utility model, an infusion pipeline is provided. To prevent the piston column 6 from descending too much, a limiting ring 14 can be installed at the bottom of the gathering and conveying pipeline 1. The limiting ring 14 is used to prevent the piston column 6 from deviating excessively, so as to ensure that it can wait in the designated position area when supplying gas. Example 2:
[0033] This utility model provides a rooftop medicine supply system, which includes an infusion pipeline according to any one of the embodiments. Specifically, in order to realize the medicine supply function of the medicine supply system, the system also includes a medicine supply box 15, an infusion pipeline 16, and a return box 17.
[0034] The medicine supply tank 15 supplies medicine to the medicine supply line 16 and the return tank 17 via an infusion pipeline. After the liquid supplied by the medicine supply line 16 is completed, the outlet is closed, and the residual liquid in the collection and transportation pipeline 1 flows into the return tank 17, which can realize the return of medicine and help save medicine. At this time, the return tank 17 supplies the remaining medicine to the medicine supply tank 15 through the return pipeline, avoiding waste of medicine. An overflow pipe is provided between the medicine supply line 16 and the return tank 17. The overflow pipe can be opened in time after the medicine supply line 16 is closed, so that the remaining medicine in the pipeline flows into the return tank 17.
[0035] This utility model provides a rooftop medicine supply system. To prevent leakage or waste of the medicine at the outlet, a collection box 18 can be installed at the outlet of the supply pipeline 16. Figure 5 As shown, by providing an overflow pipe between the collection box 18 and the return box 17, the medicine collected by the collection box 18 can flow back into the return box 17, thereby further avoiding the waste of the medicine.
[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An infusion pipeline, characterized in that, The system includes a collection and transportation pipeline (1) arranged in a straight line. The upper end of the collection and transportation pipeline (1) is connected to a liquid inlet pipeline (2), and the lower end of the collection and transportation pipeline (1) is connected to a liquid outlet pipeline (3). The collection and transportation pipeline (1) is connected to an air inlet pipeline (4) and an air extraction pipeline (5). A piston column (6) is slidably arranged inside the collection and transportation pipeline (1). A flexible scraping layer (7) is provided on the outer surface of the piston column (6). The air inlet pipeline (4) and the air extraction pipeline (5) are used to supply or extract gas into the collection and transportation pipeline (1) to enable the piston column (6) to move within the chamber of the collection and transportation pipeline (1). The collection and transportation pipeline (1) is also provided with a positioning mechanism for positioning the piston column (6).
2. The infusion pipeline according to claim 1, characterized in that, The liquid inlet pipe (2) is not on the same straight line as the collection and transportation pipe (1). A first valve (19) is installed on the liquid inlet pipe (2). The air inlet pipe (4) and the air extraction pipe (5) are connected and set at the bottom of the liquid outlet pipe (3) or the collection and transportation pipe (1). A second valve (8) is installed on the air inlet pipe (4), and a third valve (9) is installed on the air extraction pipe (5).
3. The infusion pipeline according to claim 2, characterized in that, The positioning mechanism includes a mounting base (10) fixedly installed at the top opening of the gathering and transportation pipeline (1). The mounting base (10) has an opening. A locking rod (11) is provided at the top of the piston column (6). An electromagnet (12) is installed on the mounting base (10). The electromagnet (12) is used to fix the locking rod (11) after it extends out of the opening of the mounting base (10).
4. The infusion pipeline according to claim 3, characterized in that, The diameter at the bottom of the lever (11) is smaller than the diameter at the top. The output end of the electromagnet (12) is provided with a locking part, which is used to lock onto the bottom of the lever (11).
5. The infusion pipeline according to claim 1, characterized in that, The piston column (6) has a mounting groove for installing the flexible scraping layer (7) at the middle position. Support blocks (13) are provided on both sides of the mounting groove of the piston column (6). The diameter of the outer surface of the support block (13) is smaller than the diameter of the flexible scraping layer (7).
6. The infusion pipeline according to claim 1, characterized in that, A limiting ring (14) is installed at the bottom of the inside of the gathering and transportation pipeline (1). The limiting ring (14) is used to prevent the piston column (6) from deviating excessively.
7. A rooftop medication supply system, comprising the infusion pipeline as described in any one of claims 1-6, characterized in that, It also includes a medicine supply box (15), a liquid supply pipeline (16), and a return box (17); The medicine supply box (15) is used to supply medicine to the medicine supply line (16) and the return box (17) through the infusion pipeline; The reflux box (17) is used to supply liquid medicine to the medicine supply box (15) through the reflux pipe.
8. A rooftop medicine supply system according to claim 7, characterized in that, An overflow pipe is provided between the liquid supply line (16) and the return box (17).
9. A rooftop medicine supply system according to claim 7, characterized in that, A collection box (18) is provided at the outlet of the liquid supply pipeline (16), and an overflow pipe is provided between the collection box (18) and the return box (17).