Medicine unloading system

Abstract

The utility model relates to the technical field of medicine unloading equipment, in particular to a medicine unloading system. The system comprises an input main flow channel, one end of the input main flow channel is communicated with a raw material tank, the other end of the input main flow channel is provided with a first branch and a second branch, the first branch is connected with a pneumatic diaphragm pump, the second branch is connected with a magnetic drive pump, and the first branch and the second branch are both connected to a medicine storage tank. The pneumatic diaphragm pump and the magnetic pump can be switched for use. The medicine unloading system has the advantages of being high in medicine unloading accuracy, low in noise and long in service life.

Description

Technical Field

[0001] This utility model relates to the field of unloading equipment technology, and specifically to an unloading system. Background Technology

[0002] In ultrapure water preparation processes, the regeneration of ion exchange resins restores their water treatment capacity, thereby ensuring water quality stability. Sodium hydroxide and hydrochloric acid are widely used as regenerators for ion water regeneration, and the selection of the unloading pump directly affects the precise dosing of the chemicals and the stable operation of the system.

[0003] Pneumatic diaphragm pumps are a commonly used type of unloading pump. They utilize compressed air as a power source, driving a piston within the pump body to reciprocate through pressure changes, thereby transporting the liquid. Pneumatic diaphragm pumps offer advantages such as simple structure, ease of maintenance, and strong adaptability, making them particularly suitable for transporting high-viscosity liquids or those containing solid particles. In ultrapure water preparation systems, pneumatic pumps can reliably transport chemicals such as sodium hydroxide and hydrochloric acid, ensuring the regeneration effect of ion exchange resins. However, pneumatic pumps may generate some noise and vibration during operation, and their transport efficiency is relatively low.

[0004] To address this, magnetic drive pumps, which offer higher transmission efficiency, are currently used for unloading chemicals. Their principle involves using a magnetic field to drive a rotor within the pump body, thereby achieving liquid transport. Magnetic drive pumps offer advantages such as strong corrosion resistance, low leakage risk, stable operation, and low noise. These characteristics make them excellent for transporting corrosive chemicals, effectively preventing leaks and ensuring the safe and stable operation of the system. However, magnetic drive pumps also have limitations, such as relatively high cost and stringent requirements for pump materials and manufacturing processes. Furthermore, air bubbles within the pipeline can damage the pump body during operation.

[0005] Therefore, when selecting a chemical unloading pump, in addition to considering the pump type, multiple factors must be taken into account, including pump material, sealing method, flow rate, and pressure. Furthermore, selecting the appropriate type of unloading pump based on specific process requirements and site conditions is crucial for ensuring stable system operation and extending equipment lifespan. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a drug unloading system that has the advantages of high drug unloading accuracy, low noise and long service life.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] Provides a drug unloading system, including:

[0009] The main input channel is connected at one end to the raw material tank, and at the other end it is provided with a first branch and a second branch.

[0010] Since one end of the main input channel is connected to the raw material tank, and the other end of the main input channel is divided into a first branch and a second branch, the main input channel is used to input the medicine from the raw material tank into the first branch and the second branch.

[0011] The first branch is connected to a pneumatic diaphragm pump, and the second branch is connected to a magnetic pump.

[0012] Since the first branch is connected to a pneumatic diaphragm pump and the second branch is connected to a magnetic pump, it is possible to choose to transport raw materials via either the first branch connected to the pneumatic diaphragm pump or the second branch connected to the magnetic pump.

[0013] Both the first branch and the second branch are connected to the drug storage tank, and the pneumatic diaphragm pump and the magnetic pump can be switched between each other.

[0014] It connects to a pneumatic diaphragm pump and a magnetic pump via branch lines, allowing for switching between the two depending on the branch line status. This enables the pneumatic diaphragm pump to simultaneously discharge gas from the magnetic pump's transport pipeline during the initial unloading phase. Once the gas is exhausted, the magnetic pump is switched on for unloading. This not only leverages the high unloading efficiency of the magnetic pump but also protects it, achieving stable and efficient drug delivery and effectively extending the system's lifespan. Specifically, after the pneumatic diaphragm pump has run for a certain period, the air in the suction pipe is discharged into the storage tank along with the liquid, leaving the suction pipe full. The magnetic pump is then activated for subsequent unloading. The magnetic pump overcomes the drawbacks of high noise and vibration associated with pneumatic diaphragm pumps, ensuring safe drug delivery. Furthermore, by adjusting the pneumatic pump sequence and operating time, it extends the lifespan of the diaphragm pump's diaphragm and the bearings and seals of the magnetic pump, saving operating costs.

[0015] In some embodiments, the unloading system further includes a controller connected to both the pneumatic diaphragm pump and the magnetic pump, and the controller controls the switching between the pneumatic diaphragm pump and the magnetic pump.

[0016] Since the controller is connected to both the pneumatic diaphragm pump and the magnetic pump, the controller can switch the pneumatic diaphragm pump to the magnetic pump according to the air pressure status of the pipeline.

[0017] In some implementations, the output ports of the first branch and the second branch converge into the main output channel, which is connected to the drug storage tank.

[0018] The output ports of the first branch and the second branch are converged into the main output channel, and then connected to the medicine storage tank through the main output channel, so that only one pipe enters the medicine storage tank, making the whole system relatively simple.

[0019] In some embodiments, a third branch is connected between the first branch and the second branch, and the third branch is provided with a first valve, which is preferably a connecting valve.

[0020] The third branch connects the first and second branches, and uses a pneumatic diaphragm pump to discharge the gas in the second branch, thus protecting the magnetic pump.

[0021] In some embodiments, the first branch is divided into a first branch section 1 and a first branch section 2 by the three branches. A second valve is provided on the first branch section 1, and a third valve is provided on the first branch section 2. The pneumatic diaphragm pump is located at the output port of the third valve.

[0022] Dividing the first branch into different segments can improve its controllability.

[0023] In some embodiments, the output port of the second section of the first branch is further provided with a fourth valve, and a first pressure gauge is provided between the fourth valve and the output port of the pneumatic diaphragm pump.

[0024] The air pressure on the first branch can be quickly obtained through the first pressure gauge, thus enabling the determination of whether the pneumatic diaphragm pump needs to be switched to a magnetic pump.

[0025] In some embodiments, the second branch is divided into a first section and a second section by the third branch. The first section of the second branch is provided with a fifth valve, and the second section of the first branch is provided with a sixth valve. The magnetic pump is located at the output port of the fifth valve.

[0026] Dividing the second branch into different segments can improve its controllability.

[0027] In some embodiments, a second pressure gauge is provided at the input end of the sixth valve.

[0028] The second pressure gauge can quickly obtain the air pressure on the second branch, thereby knowing the status of the magnetic pump after switching to the magnetic pump, and then deciding whether it is necessary to switch the magnetic pump to the pneumatic diaphragm pump.

[0029] In some embodiments, the medicine storage tank is equipped with a liquid level alarm.

[0030] This liquid level alarm is used to detect the liquid level in medicine storage tanks to prevent medicine leakage.

[0031] In some implementations, the level alarm, the first valve, the second valve, the third valve, the fourth valve, the fifth valve, and the sixth valve are all connected to the controller.

[0032] The controller enables intelligent control of all valves.

[0033] The beneficial effects of this utility model's unloading system:

[0034] This utility model's unloading system connects a pneumatic diaphragm pump and a magnetic pump via branch lines. This allows for switching between the two pumps depending on the branch line status. Initially, the pneumatic diaphragm pump simultaneously discharges gas from the magnetic pump's transport pipeline. Once the gas is exhausted, the magnetic pump is switched on for unloading. This not only utilizes the high unloading efficiency of the magnetic pump but also protects it, achieving stable and efficient drug delivery and effectively extending the system's lifespan. Specifically, after the pneumatic diaphragm pump has run for a certain period, the air in the suction pipe is discharged into the storage tank along with the drug, leaving the suction pipe full. The magnetic pump is then activated for subsequent unloading. The magnetic pump overcomes the drawbacks of high noise and vibration associated with pneumatic diaphragm pumps, ensuring safe drug delivery. Furthermore, by adjusting the pneumatic pump sequence and operating time, the lifespan of the pneumatic diaphragm pump's diaphragm and the magnetic pump's bearings and seals is extended, saving operating costs. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the unloading system of this utility model embodiment.

[0036] Figure 2 This is a flowchart illustrating the usage of the unloading system according to an embodiment of the present invention.

[0037] Figure 3 This is a diagram showing the working state of the controller according to an embodiment of the present invention.

[0038] Figure 4 This is a diagram of the display panel of the unloading system according to an embodiment of the present invention.

[0039] Figure Labels

[0040] 1. Main valve; 2. Second valve; 3. Third valve; 4. Fifth valve; 5. First valve; 6. Fourth valve; 7. Sixth valve; 8. Pneumatic diaphragm pump; 9. Magnetic pump; 10. Liquid level alarm; 11. First pressure gauge; 12. Second pressure gauge; 13. Main input channel; 14. Raw material tank; 15. First branch; 16. Second branch; 17. Third branch; 18. Pharmaceutical storage tank; 19. Main output channel. Detailed Implementation

[0041] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0042] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0043] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] Example 1

[0045] Pneumatic diaphragm pumps are a commonly used type of unloading pump. They utilize compressed air as a power source, driving a piston within the pump body to reciprocate through pressure changes, thereby transporting liquids. Pneumatic diaphragm pumps offer advantages such as simple structure, ease of maintenance, and strong adaptability, making them particularly suitable for transporting high-viscosity liquids or those containing solid particles. In ultrapure water preparation systems, pneumatic pumps can reliably transport chemicals such as sodium hydroxide and hydrochloric acid, ensuring the regeneration effect of ion exchange resins. However, pneumatic pumps may generate some noise and vibration during operation, and their transport efficiency is relatively low.

[0046] To address this, a magnetic pump 9 with higher transmission efficiency is currently used for unloading. However, the magnetic pump 9 also has certain limitations, such as relatively high cost, high requirements for pump body materials and manufacturing processes, and the potential for damage to the pump body caused by air bubbles in the pipeline during operation.

[0047] For the above technical issues, please refer to [link / reference]. Figure 1 The following embodiments of the unloading system are disclosed:

[0048] The main input channel 13 is connected to the raw material tank 14 at one end, and a first branch 15 and a second branch 16 are provided at the other end of the main input channel 13.

[0049] Since one end of the main input channel 13 is connected to the raw material tank 14, and the other end of the main input channel 13 is provided with a first branch 15 and a second branch 16, the main input channel 13 is used to input the medicine from the raw material tank 14 into the first branch 15 and the second branch 16.

[0050] The first branch 15 is connected to a pneumatic diaphragm pump 8, and the second branch 16 is connected to a magnetic pump 9.

[0051] Since the first branch 15 is connected to the pneumatic diaphragm pump 8 and the second branch 16 is connected to the magnetic pump 9, it is possible to choose to transport raw materials via either the first branch 15 connected to the pneumatic diaphragm pump 8 or the second branch 16 connected to the magnetic pump 9.

[0052] Both the first branch 15 and the second branch 16 are connected to the medicine storage tank 18, and the pneumatic diaphragm pump 8 and the magnetic pump 9 can be switched between each other.

[0053] Specifically,

[0054] The system includes an input main channel 13, one end of which is connected to the raw material tank 14, and the other end is divided into a first branch 15 and a second branch 16.

[0055] The first branch 15 connects to the pneumatic diaphragm pump 8, and the second branch 16 connects to the magnetic pump 9 to meet different conveying needs.

[0056] The pneumatic diaphragm pump 8 is suitable for conveying medium to high viscosity fluids, has flow self-adaptation capability, is suitable for flammable and explosive environments, can pass through liquids containing particles, and is easy to maintain.

[0057] It is connected to a pneumatic diaphragm pump 8 and a magnetic pump 9 via branch lines, so the pneumatic diaphragm pump 8 and the magnetic pump 9 can be switched according to the branch line status. Therefore, in the initial stage of unloading, the pneumatic diaphragm pump 8 can be used to discharge the gas in the transport pipeline of the magnetic pump 9 while unloading the drug. After the gas is discharged, the magnetic pump 9 is switched to unload the drug. This not only makes use of the high unloading efficiency of the magnetic pump 9, but also protects the magnetic pump 9, realizing stable and efficient drug delivery, and effectively improving the service life of the unloading system. Specifically, after the pneumatic diaphragm pump 8 has been running for a certain period of time, the air in the suction pipe is discharged into the drug storage tank 18 along with the drug liquid. The liquid in the suction pipe is also in a full state. Then, the magnetic pump 9 is started to perform the subsequent unloading action. The conveying of the magnetic pump 9 overcomes the disadvantages of the pneumatic diaphragm pump 8 in terms of high noise and vibration during operation. This ensures the safety of drug delivery and, depending on the sequence of pneumatic pumps and the length of operation time, extends the diaphragm life of the pneumatic diaphragm pump 8 and the life of the bearings and sealing components of the magnetic pump 9, thus saving operating costs.

[0058] In this embodiment, a controller is also included. The controller is connected to the pneumatic diaphragm pump 8 and the magnetic pump 9 respectively. The controller controls the switching between the pneumatic diaphragm pump 8 and the magnetic pump 9.

[0059] Since the controller is connected to both the pneumatic diaphragm pump 8 and the magnetic pump 9, the controller can switch the pneumatic diaphragm pump 8 to the magnetic pump 9 according to the air pressure status of the pipeline.

[0060] Specifically, the controller is connected to the pneumatic diaphragm pump 8 and the magnetic pump 9 respectively, and is used to control the switching and operation of the pumps.

[0061] The controller can automatically switch between the pneumatic diaphragm pump 8 and the magnetic pump 9 based on the gas pressure in the pipeline.

[0062] When the system starts up, the controller first checks the gas pressure in the pipeline.

[0063] If there is gas in the pipeline, the system will select to use the pneumatic diaphragm pump 8 for material delivery because it has self-priming capability and can remove the gas from the pipeline first. If the gas pressure is lower than the set value, the controller will automatically switch to the magnetic pump 9.

[0064] The high degree of automation in the control system reduces the complexity and potential errors of manual operation, and improves the safety and efficiency of the system.

[0065] This drug delivery system ensures both operational safety and system economy. The intelligent switching mechanism of the controller is the core of the system, ensuring efficient operation under different working conditions.

[0066] In this embodiment, the output ports of the first branch 15 and the second branch 16 converge to the main output channel 19, which is connected to the drug storage tank 18.

[0067] The output ports of the first branch 15 and the second branch 16 are converged into the main output channel 19, and then connected to the medicine storage tank 18 through the main output channel 19, so that only one pipe enters the medicine storage tank 18, making the whole system relatively simple.

[0068] In this embodiment, a third branch 17 is connected between the first branch 15 and the second branch 16. The third branch is provided with a first valve 5, which is preferably a connecting valve.

[0069] Specifically, the third branch 17 connects the first branch 15 and the second branch 16, and the gas in the second branch 16 is discharged through the pneumatic diaphragm pump 8 to protect the magnetic pump 9.

[0070] When it is necessary to switch from the first branch 15 to the second branch 16 or vice versa, the first valve 5 (connecting valve) can be opened or closed quickly to achieve rapid fluid reversal.

[0071] The first valve 5, as a connecting valve, mainly functions to control the opening and closing of the third branch 17, thereby controlling the fluid flow direction.

[0072] When the first valve 5 is opened, fluid can be quickly switched from the first branch 15 to the second branch 16 via the third branch 17, or from the second branch 16 to the first branch 15.

[0073] The design of the third branch 17 and the first valve 5 significantly improves the switching speed between the first branch 15 and the second branch 16 because they allow fluid to flow directly between the two branches without going through a complex piping system.

[0074] This design reduces the residence time of fluid in the system, improving delivery efficiency, especially when rapid switching of delivery routes is required.

[0075] In this embodiment, the first branch 15 is divided into a first branch 15 section 1 and a first branch 15 second section by the three branches. A second valve 2 is provided on the first branch 15 section 1, and a third valve 3 is provided on the first branch 15 second section. The pneumatic diaphragm pump 8 is located at the output port of the third valve 3.

[0076] By dividing the first branch 15 into different segments, the controllability of the first branch 15 can be improved.

[0077] In this embodiment, the output port of the second section of the first branch 15 is also provided with a fourth valve 6, and a first pressure gauge 11 is provided between the fourth valve 6 and the output port of the pneumatic diaphragm pump 8.

[0078] The air pressure on the first branch 15 can be quickly obtained through the first pressure gauge 11, thereby enabling the determination of whether the pneumatic diaphragm pump 8 needs to be switched to the magnetic pump 9.

[0079] In this embodiment, the second branch 16 is divided into a first section and a second section by the third branch 17. The first section of the second branch 16 is provided with a fifth valve 4, and the second section of the first branch 16 is provided with a sixth valve 7. The magnetic pump 9 is located at the output port of the fifth valve 4.

[0080] By dividing the second branch 16 into different segments, the controllability of the second branch 16 can be improved.

[0081] In this embodiment, the input end of the sixth valve 7 is equipped with a second pressure gauge 12.

[0082] The second pressure gauge 12 can quickly obtain the air pressure on the second branch 16, thereby knowing the status of the magnetic pump 9 after switching to the magnetic pump 9, and then deciding whether it is necessary to switch the magnetic pump 9 to the pneumatic diaphragm pump 8.

[0083] In this embodiment, the medicine storage tank 18 is equipped with a liquid level alarm 10.

[0084] The liquid level alarm 10 is used to detect the liquid level in the medicine storage tank 18 to prevent medicine leakage.

[0085] In this embodiment, please refer to Figure 3 The liquid level alarm 10, the first valve 5, the second valve 2, the third valve 3, the fourth valve 6, the fifth valve 4, and the sixth valve 7 are all connected to the controller.

[0086] The controller enables intelligent control of all valves.

[0087] The system includes a level alarm 10, first valves 5 through sixth valves 7, all of which are connected to the controller.

[0088] The controller is responsible for intelligently controlling each valve to achieve precise fluid transport management.

[0089] Example 2

[0090] For further explanation of how the unloading system works, please refer to [link / reference]. Figure 2 The following example of implementing a drug unloading system is disclosed.

[0091] The device includes: one pneumatic diaphragm pump 8, one magnetic pump 9, and a PLC automatic control system.

[0092] The pneumatic diaphragm pump 8 uses PP (polypropylene) for its pump body and PTFE (polytetrafluoroethylene) for its diaphragm, a selection that balances durability and chemical compatibility. The magnetic pump 9 uses ETFE (ethylene-tetrafluoroethylene copolymer) and CF (coarse fiber) for its pump casing and FKM (fiberglass) for its sealing ring, effectively resisting the corrosiveness of hydrochloric acid. The unloading pump's inlet and outlet pipes use double-pipe systems: the inner pipe is made of UPVC, and the outer pipe is made of transparent PVC. This design effectively addresses the strong corrosiveness of the transported medium and allows for timely detection of leaks. Flexible joints use PTFE-lined EPDM single-ball flexible connectors, enhancing system flexibility and sealing. In terms of flow design, the capacity of the tanks and the unloading time requirements are fully considered to ensure consistent flow rates between the magnetic pump 9 and the pneumatic diaphragm pump 8, thereby improving overall system efficiency. Furthermore, both pumps have identical suction and output pipe dimensions and are equipped with the same valves, flexible joints, pressure gauges, and other accessories. This design not only facilitates maintenance but also allows for mutual backup, enhancing system reliability and flexibility.

[0093] The specific implementation method is as follows:

[0094] Generally, during the execution of the automatic program, the connection between the tank truck and the suction pipeline of the unloading pump is first established to ensure that the tank truck (raw material tank 14) stops according to the specifications.

[0095] Generally, after the connection is completed, the operator presses the pump start button, the PLC control system completes the signal reception and transmission, opens the main valve 1, third valve 3, fifth valve 4, first valve 5, and fourth valve 6 of the main input channel 13 and starts the pneumatic diaphragm pump 8. The indicator lights on the control panel that indicate the start of unloading, as well as the indicator lights of the corresponding valves and pumps, show the start. At this time, the system starts running and unloading.

[0096] Generally, when the pneumatic diaphragm pump 8 runs continuously for about 5 minutes, i.e., 300 seconds as displayed on the control panel, the running time of the pneumatic diaphragm pump 8 needs to be determined according to the gas discharge in the pipeline. When there are no air bubbles in the pipeline and the transport is stable, the delivery pump switching signal can be entered in the program.

[0097] Generally, after the PLC control system completes the signal reception and transmission, the third valve 3, the first valve 5, the fourth valve 6 and the pneumatic diaphragm pump 8 are closed, and the indicator light on its control panel shows "stop". At this time, the sixth valve 7 is opened, the magnetic pump 9 starts, and the indicator light on its control panel shows "start". At this time, the magnetic pump 9 begins to unload the medicine.

[0098] Generally, the PLC system will continuously monitor the status of the liquid level alarm 10 of the medicine storage tank 18 to ensure stable transportation of medicines.

[0099] Generally, when the level alarm 10 displays that the main valve 1 of the main input channel 13 has reached the target level, the PLC system completes the signal reception and transmission, the fifth valve 4 and the sixth valve 7 close, the magnetic pump 9 stops running, and the corresponding indicator light on the control panel displays "stop", marking the completion of the entire automatic unloading process.

[0100] Generally, if a problem occurs during the operation of the magnetic pump 9, it can be displayed by the second pressure gauge 12 at the outlet of the magnetic pump 9. At this time, the main valve 1, the second valve 2, the third valve 3, the fourth valve 6 and the pneumatic diaphragm pump 8 can be opened, and the fifth valve 4, the first valve 5 and the sixth valve 7 can be closed. The pneumatic diaphragm pump 8 can then be used to unload the medicine.

[0101] Please refer to the electrical control diagram and control panel. Figure 4 .

[0102] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0103] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0104] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0105] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0106] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A drug unloading system, characterized in that, include: The main input channel (13) is connected at one end to the raw material tank (14), and at the other end of the main input channel (13) are a first branch (15) and a second branch (16). The first branch (15) is connected to a pneumatic diaphragm pump (8), and the second branch (16) is connected to a magnetic pump (9). The first branch (15) and the second branch (16) are both connected to the medicine storage tank (18), and the pneumatic diaphragm pump (8) and the magnetic pump (9) can be switched between each other.

2. The unloading system according to claim 1, characterized in that, It also includes a controller, which is connected to the pneumatic diaphragm pump (8) and the magnetic pump (9) respectively. The controller switches between the pneumatic diaphragm pump (8) and the magnetic pump (9) by controlling the amount of gas in the pipeline.

3. The unloading system according to claim 1, characterized in that, The output ports of the first branch (15) and the second branch (16) converge into the main output channel (19), which is connected to the drug storage tank (18).

4. The unloading system according to claim 2, characterized in that, A third branch (17) is connected between the first branch (15) and the second branch (16), and the third branch is equipped with a first valve (5).

5. The unloading system according to claim 4, characterized in that, The first branch (15) is divided into a first branch (15) section and a first branch (15) section two by the third branch (17). A second valve (2) is provided on the first branch (15) section one and a third valve (3) is provided on the first branch (15) section two. The pneumatic diaphragm pump (8) is located at the output port of the third valve (3).

6. The unloading system according to claim 5, characterized in that, The output port of the second section of the first branch (15) is also provided with a fourth valve (6), and a first pressure gauge (11) is provided between the fourth valve (6) and the output port of the pneumatic diaphragm pump (8).

7. The unloading system according to claim 5, characterized in that, The second branch (16) is divided into two sections by the three branches: a first section of the second branch (16) and a second section of the second branch (16). The first section of the second branch (16) is equipped with a fifth valve (4), and the second section of the first branch (15) is equipped with a sixth valve (7). The magnetic pump (9) is located at the output port of the fifth valve (4).

8. The unloading system according to claim 7, characterized in that, The input end of the sixth valve (7) is equipped with a second pressure gauge (12).

9. The unloading system according to claim 8, characterized in that, The medicine storage tank (18) is equipped with a liquid level alarm (10).

10. The unloading system according to claim 9, characterized in that, The liquid level alarm (10), the first valve (5), the second valve (2), the third valve (3), the fourth valve (6), the fifth valve (4), and the sixth valve (7) are all connected to the controller.

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