Peristaltic pump, fluid delivery device and solid target purification apparatus
By designing a combination of inclined filter plates and sliding mating covers in the peristaltic pump, automatic cleaning of particulate impurities is achieved, solving the problems of flexible tube damage and unstable flow in the peristaltic pump, and ensuring the stable operation of fluid delivery equipment and solid target purification device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SICHUAN JIUYIYUAN PARTICLE TECH CO LTD
- Filing Date
- 2026-04-03
- Publication Date
- 2026-07-21
AI Technical Summary
When peristaltic pumps transport fluids containing particulate impurities, they are prone to damaging flexible tubes and causing unstable flow rates. The reduced permeability of existing filter elements also affects flow stability.
Design a peristaltic pump comprising an inclined filter plate, a sliding mating shroud, and an extraction component. The sliding mating shroud collects and cleans particulate impurities, and the drive component and extraction component are used to achieve automatic cleaning of particulate impurities and continuous and stable flow rate.
To prevent particulate impurities from damaging the flexible tube, maintain stable flow rate, and ensure the efficient and high-quality operation of fluid delivery equipment and solid target purification devices.
Smart Images
Figure CN121993384B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of peristaltic pump technology, and more specifically, to a peristaltic pump, a fluid delivery device, and a solid target purification apparatus. Background Technology
[0002] Currently, peristaltic pumps are widely used in various industries. For peristaltic pumps, if particulate impurities are present in the fluid being pumped, these impurities may damage the flexible tubing of the pump, directly affecting the service life of the flexible tubing, and in severe cases, even causing the flexible tubing to rupture, resulting in fluid loss.
[0003] Although adding a filter to the inlet of the peristaltic pump can prevent particulate impurities from entering the pump, as the amount of particulate impurities filtered out gradually increases, the permeability of the filter will decrease significantly, which will directly affect the flow stability of the peristaltic pump when pumping fluid.
[0004] In view of the above, this application is hereby submitted. Summary of the Invention
[0005] The first objective of this application is to provide a peristaltic pump that can prevent particulate impurities from damaging flexible tubes and can continuously maintain a stable flow rate.
[0006] The second objective of this application is to provide a fluid transport device that can separate particulate impurities and continuously maintain a stable flow rate.
[0007] The third objective of this application is to provide a solid target purification device that can separate particulate impurities and maintain a stable flow rate, thereby ensuring the efficient and high-quality production of radionuclides.
[0008] The embodiments of this application are implemented as follows:
[0009] A peristaltic pump includes: a pump body, a guide tube, a filter plate, a mating cover, a drive assembly, and an extraction assembly.
[0010] The outlet end of the guide pipe is connected to the inlet end of the pump body, and the inlet end of the guide pipe is used to connect to an external fluid supply pipeline.
[0011] The filter plate is installed inside the guide tube and is inclined relative to the guide tube. The filter plate has a first end and a second end that are arranged opposite to each other. The first end is located close to the pump body and the second end is located on the side of the first end that is away from the pump body.
[0012] The fitting cover is located on the side of the filter plate away from the pump body. The fitting cover fits into the filter plate, and the fitting cover and the filter plate enclose each other to form a collection cavity. A collection port communicating with the collection cavity is opened on the side of the fitting cover near the first end, and the collection port extends to the surface of the fitting cover that fits into the filter plate.
[0013] The mating cover is slidably fitted onto the filter plate, and the drive assembly is driven to engage with the mating cover so that the mating cover can slide between the first end and the second end.
[0014] Extract the components and fit them with the mating cover.
[0015] When the shroud moves to the first end and comes into contact with the inner wall of the guide tube, the inner wall of the guide tube closes the collection port, so that the extraction assembly can extract particulate impurities from the collection chamber.
[0016] Furthermore, the drive assembly includes: a drive rod, a transmission rod, and a mating post.
[0017] The end of the guide pipe away from the pump body is closed by the first sealing plate. The drive rod is arranged along the axial direction of the guide pipe and passes through the first sealing plate. The drive rod is slidably fitted to the first sealing plate and the two slide and seal each other.
[0018] The guide tube has an oblique hole in its wall. The oblique hole is located between the filter plate and the first sealing plate. The central axis of the oblique hole is parallel to the surface of the filter plate. The end of the oblique hole that is closer to the cavity of the guide tube is called the first end, and the end of the oblique hole that is farther away from the cavity of the guide tube is called the second end. The second end is located on the side of the first end that is farther away from the filter plate.
[0019] The mating post can be slidably fitted into the inclined hole, and a sliding seal is formed between the mating post and the inclined hole.
[0020] One end of the transmission rod is hinged to the drive rod, and the other end of the transmission rod is hinged to the mating column. The mating cover and the mating column are fixedly connected by a connecting rod, so that when the drive rod moves along the axial direction of the guide tube, the drive rod can drive the mating column to slide in the inclined hole through the transmission rod, thereby controlling the sliding of the mating cover between the first end and the second end.
[0021] Furthermore, the extraction assembly includes: a mating cylinder and a rotating column.
[0022] The fitting sleeve is connected to the outer wall of the guide tube and communicates with the inclined hole. The fitting sleeve and the inclined hole are coaxially arranged.
[0023] The end of the mating cylinder away from the inclined hole is provided with a first one-way structure. The first one-way structure allows the fluid in the mating cylinder to leave the mating cylinder through the end of the mating cylinder away from the inclined hole, and prevents the fluid outside the mating cylinder from entering the mating cylinder through the end of the mating cylinder away from the inclined hole.
[0024] The mating column extends into the mating cylinder, and the side wall of the mating column fits against the inner wall of the mating cylinder. The mating column can slide and fit into the mating cylinder, and the two slide and seal each other.
[0025] A first flow channel is provided on the end face of the mating column near the first unidirectional structure. The first flow channel extends along the axial direction of the mating column toward the end where the connecting rod is located.
[0026] The mating column has an inner cavity near the connecting rod. The inner cavity is cylindrical, and the rotating column is rotatably fitted into the inner cavity. The circumferential wall of the rotating column is in contact with the inner wall of the inner cavity and rotates to seal.
[0027] The first flow channel is connected to the inner cavity.
[0028] The rotating column passes through the mating column and extends beyond the mating column, and the transmission rod is fixedly connected to the rotating column.
[0029] The connecting rod has a second flow channel inside, one end of which is connected to the inner cavity, and the other end of which is connected to the collection cavity.
[0030] A connecting hole is provided on the circumferential wall of the rotating column, and the connecting hole passes through the rotating column.
[0031] When the mating cover moves to the first end and fits against the inner wall of the guide tube, the connecting hole connects the first flow channel and the second flow channel. When the mating cover moves away from the first end, at least one of the first flow channel and the second flow channel is disconnected from the connecting hole, and the rotating column blocks the first flow channel from the second flow channel.
[0032] Furthermore, a second one-way structure is provided at one end of the first flow channel near the first one-way structure. The second one-way structure allows the fluid in the first flow channel to enter the mating cylinder and prevents the fluid in the mating cylinder from entering the first flow channel.
[0033] Furthermore, the filter plate is rectangular, and the mating cover extends along the width of the filter plate. Along the length of the filter plate, the mating cover is slidably fitted onto the filter plate.
[0034] Furthermore, the side of the cover near the second end is wedge-shaped.
[0035] A fluid transport device comprising: the peristaltic pump described above.
[0036] A solid target purification apparatus includes a dissolution device, a transfer device, and a purification device. The transfer device is equipped with the aforementioned peristaltic pump.
[0037] The dissolution device is used to dissolve the target material.
[0038] The transfer device is used to transport the dissolved target material to the purification device.
[0039] The purification device is used to purify the dissolved target material.
[0040] The beneficial effects of the technical solutions in this application include:
[0041] In summary, the peristaltic pump provided in this application embodiment can prevent particulate impurities from damaging the flexible tube and can continuously maintain a stable flow rate. The fluid delivery device provided in this application embodiment can separate particulate impurities and continuously maintain a stable flow rate, thereby ensuring the efficient and high-quality production of radionuclides. Attached Figure Description
[0042] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0043] Figure 1 This is a schematic diagram of the overall structure of the peristaltic pump provided in the embodiments of this application;
[0044] Figure 2 A schematic diagram of the structure of the guide tube of the peristaltic pump provided in the embodiment of this application (when the mating cover is located at the second end);
[0045] Figure 3 A schematic diagram showing the fit between the cover and the filter plate;
[0046] Figure 4 A schematic diagram of the structure of the guide tube of the peristaltic pump provided in the embodiment of this application (when the mating cover is located at the first end);
[0047] Figure 5 for Figure 2 The diagram shows the connection relationship between the first and second flow channels under the indicated conditions.
[0048] Figure 6 for Figure 5 Schematic diagram of the structure at the rotating column;
[0049] Figure 7 for Figure 4 The diagram shows the connection relationship between the first and second flow channels under the indicated conditions.
[0050] Figure 8 for Figure 7 Schematic diagram of the structure at the rotating column;
[0051] Figure 9 This is a schematic diagram to illustrate the structure of the cover.
[0052] Explanation of reference numerals in the attached figures:
[0053] Pump body 100; guide pipe 200; first sealing plate 210; inlet pipe 220; second sealing plate 230; outlet pipe 240; oblique hole 250; filter plate 300; first end 310; second end 320; mating cover 400; collecting chamber 410; first surface 420; second surface 430; third surface 440; fourth surface 450; collecting port 460; wedge-shaped part 470; drive rod 510; transmission rod 520; mating column 530; first flow channel 531; inner cavity 532; second one-way structure 533; connecting rod 540; second flow channel 541; mating cylinder 600; first one-way structure 610; rotating column 700; connecting hole 710. Detailed Implementation
[0054] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0055] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0056] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0057] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0058] Furthermore, the terms "vertical" and "parallel" do not mean that the parts must be absolutely vertical or parallel, but can be slightly tilted.
[0059] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," and "connect" 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 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 application based on the specific circumstances.
[0060] The technical solutions of this application will be described by way of example through some embodiments below.
[0061] To overcome the shortcomings of existing technologies, see Figures 1-3 This application provides a peristaltic pump, which includes: a pump body 100, a guide tube 200, a filter plate 300, a mating cover 400, a drive assembly, and an extraction assembly.
[0062] The pump body 100 is the main part of the peristaltic pump, used to pump fluid.
[0063] In this embodiment, the guide tube 200 is a straight tube, and both ends of the guide tube 200 are respectively sealed by the first sealing plate 210 and the second sealing plate 230.
[0064] The second sealing plate 230 has an outlet end with a discharge pipe 240; the guide pipe 200 has an inlet end on its side wall, which is located near the first sealing plate 210 and has an inlet pipe 220. Fluid enters the guide pipe 200 through the inlet pipe 220 and exits the guide pipe 200 through the discharge pipe 240.
[0065] The guide pipe 200 is connected to the inlet end of the pump body 100 via the outlet pipe 240, and the inlet pipe 220 of the guide pipe 200 is used to connect to an external fluid supply pipeline.
[0066] The filter plate 300 is disposed within the outlet pipe 240 of the guide pipe 200. In this embodiment, the centerline of the inlet pipe 220 is arranged radially along the guide pipe 200, and the centerline of the outlet pipe 240 is arranged axially along the guide pipe 200.
[0067] The filter plate 300 is inclined relative to the outlet pipe 240 of the guide pipe 200, that is, the angle between the plate surface of the filter plate 300 and the central axis of the outlet pipe 240 is an acute angle. The angle between the plate surface of the filter plate 300 and the central axis of the outlet pipe 240 can be selected as 45°, but is not limited to this.
[0068] In this embodiment, the cross-section of the outlet tube 240 is rectangular, and the filter plate 300 is also rectangular. The edge of the filter plate 300 is connected to the inner wall of the outlet tube 240, and a sealing treatment is applied between the edge of the filter plate 300 and the inner wall of the outlet tube 240.
[0069] Along the length of the filter plate 300, the filter plate 300 has a first end 310 and a second end 320 disposed opposite to each other. The first end 310 is disposed close to the pump body 100 (i.e., the first end 310 is disposed close to the outlet pipe 240 and away from the guide pipe 200), and the second end 320 is located on the side of the first end 310 away from the pump body 100 (i.e., the second end 320 is located on the side of the first end 310 close to the guide pipe 200).
[0070] The fitting cover 400 is installed on the side of the filter plate 300 away from the pump body 100. The fitting cover 400 fits into the filter plate 300, and the fitting cover 400 and the filter plate 300 enclose each other to form a collection cavity 410.
[0071] In this embodiment, the mating cover 400 extends along the width direction of the filter plate 300, the width of the mating cover 400 is adapted to the width of the filter plate 300, and the two sides of the mating cover 400 are in contact with the inner wall of the outlet pipe 240.
[0072] In this embodiment, the mating cover 400 has: a first surface 420 for mating with the plate surface of the filter plate 300, a second surface 430 located on the side near the first end 310, a third surface 440 located on the side near the second end 320, and a fourth surface 450 located on the side away from the filter plate 300.
[0073] Wherein: the second surface 430 and the third surface 440 are parallel to each other, and both the second surface 430 and the third surface 440 are parallel to the central axis of the outlet pipe 240. Both the second surface 430 and the third surface 440 are arranged along the width direction of the filter plate 300. The fourth surface 450 is arranged perpendicular to the central axis of the outlet pipe 240.
[0074] The mating cover 400 has a collection port 460 that communicates with the collection chamber 410 on the side near the first end 310 (i.e., the second surface 430). The collection port 460 extends to the side surface of the mating cover 400 that is in contact with the filter plate 300 (i.e., the collection port 460 extends along the second surface 430 to the first surface 420).
[0075] Along the length of the filter plate 300 (e.g.) Figure 3 (As shown in the K direction), the mating cover 400 is slidably fitted to the filter plate 300, and the drive assembly is driven to engage with the mating cover 400 so that the drive assembly can drive the mating cover 400 to slide between the first end 310 and the second end 320 of the filter plate 300.
[0076] The extraction component works in conjunction with the shroud 400 to extract particulate impurities from the collection chamber 410.
[0077] Under normal conditions, the mating cover 400 is located at the second end 320.
[0078] During normal pumping of fluid by the pump body 100, the fluid is drawn into the guide pipe 200 through the inlet pipe 220 and into the pump body 100 through the outlet pipe 240. Particulate impurities in the fluid can be separated by the filter plate 300. These particulate impurities are blocked on the side of the filter plate 300 near the guide pipe 200.
[0079] Because the filter plate 300 is inclined, under the guidance of the surface of the filter plate 300, the particulate impurities separated by the filter plate 300 tend to accumulate towards the first end 310.
[0080] When particulate impurities on the filter plate 300 need to be cleaned, the drive assembly drives the mating cover 400 toward the first end 310, and the mating cover 400 then moves along the surface of the filter plate 300 toward the first end 310.
[0081] During the movement, particulate impurities on the surface of the filter plate 300 enter the collection chamber 410 through the collection port 460. As the mating cover 400 moves along the filter plate 300, the particulate impurities on the filter plate 300 can be scraped off by the mating cover 400 and collected in the collection chamber 410.
[0082] Since particulate impurities tend to accumulate towards the first end 310, when the mating cover 400 moves to the first end 310 and the first surface 420 of the mating cover 400 is in contact with the inner wall of the guide tube 200, the inner wall of the guide tube 200 can close the collection port 460. This allows particulate impurities on the entire surface of the filter plate 300, as well as particulate impurities accumulated at the first end 310, to be collected into the collection chamber 410 as much as possible.
[0083] At this time, by using the extraction component to extract the particulate impurities in the collection chamber 410, the particulate impurities in the collection chamber 410 can be flushed out by the fluid in the collection chamber 410 and the fluid on the side of the filter plate 300 away from the guide pipe 200. At the same time, the fluid on the side of the filter plate 300 away from the guide pipe 200 is also used to backflush the first end 310 of the filter plate 300, thereby cleaning the particulate impurities at the filter plate 300.
[0084] Through the above design, particulate impurities at the filter plate 300 can be cleaned, and the first end 310 with the largest accumulation of particulate impurities can be backflushed to ensure the cleanliness and permeability of the filter plate 300 and avoid affecting the flow stability of the pump body 100 due to the blockage of the filter plate 300.
[0085] Throughout the entire process, the normal operation of the filter screen will not be affected. That is, regardless of whether the shroud 400 is moving (whether or not it is cleaning particulate impurities), the pump body 100 can operate according to the predetermined working parameters without interfering with the normal pumping of fluid.
[0086] It should be noted that when using the extraction component to extract particulate impurities, the extraction speed needs to be controlled to avoid affecting the normal pumping operation of the pump body 100. The specific extraction speed of the extraction component can be flexibly adjusted according to the actual situation (e.g., the working parameters of the pump body 100, the diameter of the guide pipe 200, the fluid supply speed, etc.), and this application does not impose specific restrictions.
[0087] Overall, the peristaltic pump provided in this application embodiment can prevent particulate impurities from damaging the flexible tube and can continuously maintain a stable flow rate.
[0088] Furthermore, the drive assembly includes: a drive rod 510, a transmission rod 520, a mating post 530, and a driver (not shown in the figure).
[0089] The drive rod 510 is arranged axially along the guide tube 200 and passes through the first sealing plate 210. Along the axial direction of the guide tube 200, the drive rod 510 is slidably engaged with the first sealing plate 210, and a sliding seal is formed between the drive rod 510 and the first sealing plate 210. The drive rod 510 is driven by an actuator, which drives the drive rod 510 to reciprocate along the axial direction of the guide tube 200.
[0090] The guide tube 200 has an oblique hole 250 in its tube wall. The oblique hole 250 is located between the filter plate 300 and the first sealing plate 210. In this embodiment, the oblique hole 250 is located on the side of the guide tube 200 away from the inlet tube 220.
[0091] The central axis of the inclined hole 250 is parallel to the surface of the filter plate 300. The end of the inclined hole 250 that is close to the cavity of the guide tube 200 is called the first end, and the end of the inclined hole 250 that is far away from the cavity of the guide tube 200 is called the second end. The second end is located on the side of the first end that is far away from the filter plate 300.
[0092] Along the axial direction of the inclined hole 250, the mating post 530 is slidably fitted inside the inclined hole 250, the side wall of the mating post 530 is in contact with the hole wall of the inclined hole 250, and the mating post 530 and the inclined hole 250 slide and seal.
[0093] One end of the transmission rod 520 is hinged to the drive rod 510, and the other end of the transmission rod 520 is hinged to the mating post 530. The mating cover 400 and the mating post 530 are fixedly connected by a connecting rod 540. In this embodiment, the connecting rod 540 is arranged along the axial direction of the guide tube 200.
[0094] The rotation axis of the transmission rod 520 relative to the mating column 530 and the rotation axis of the transmission rod 520 relative to the drive rod 510 are both set along the width direction of the filter plate 300.
[0095] Under normal conditions, the mating cover 400 is located at the second end 320, and at this time, the transmission rod 520 is arranged along the axial direction of the mating column 530.
[0096] When particulate impurities on the filter plate 300 need to be cleaned, the actuator drives the drive rod 510 to move axially into the guide tube 200. The drive rod 510 can drive the mating post 530 to slide inside the guide tube 200 within the inclined hole 250 via the transmission rod 520. The mating cover 400 then moves along the length of the filter plate 300 toward the first end 310. During this process, the end of the transmission rod 520 near the drive rod 510 will swing relative to the end near the mating post 530 toward the side where the filter plate 300 is located.
[0097] When the mating cover 400 moves to the first end 310 and the first surface 420 of the mating cover 400 is in contact with the inner wall of the guide tube 200, the drive rod 510 reaches the movement stop point, such as Figure 4 As shown. At this time, the end of the drive rod 510 near the filter plate 300 is still located inside the guide tube 200.
[0098] After the particulate impurities in the collection chamber 410 are completely extracted, the driver controls the drive rod 510 to move in the reverse direction to reset, so that the mating cover 400 can return to the second end 320.
[0099] This design allows for easy control of the movement of the mating cover 400.
[0100] Furthermore, please combine Figures 5-8 The extraction assembly includes: a mating cylinder 600 and a rotating column 700.
[0101] The mating cylinder 600 is connected to the outer wall of the guide tube 200 and communicates with the inclined hole 250. The mating cylinder 600 and the inclined hole 250 are coaxially arranged, and the inner diameter of the mating cylinder 600 is adapted to the inner diameter of the inclined hole 250.
[0102] The end of the mating cylinder 600 away from the inclined hole 250 is provided with a first one-way structure 610. The first one-way structure 610 allows fluid in the mating cylinder 600 to leave the mating cylinder 600 through the end of the mating cylinder 600 away from the inclined hole 250, and prevents fluid outside the mating cylinder 600 from entering the mating cylinder 600 through the end of the mating cylinder 600 away from the inclined hole 250.
[0103] The mating post 530 extends into the mating cylinder 600, and the side wall of the mating post 530 fits against the inner wall of the mating cylinder 600. The mating post 530 is slidably fitted into the mating cylinder 600 and the two slide and seal each other.
[0104] A first flow channel 531 is provided on one end face of the mating post 530 near the first one-way structure 610. The first flow channel 531 extends along the axial direction of the mating post 530 toward the end where the connecting rod 540 is located.
[0105] The mating post 530 has an inner cavity 532 near the connecting rod 540. The inner cavity 532 is cylindrical. The rotating post 700 is rotatably fitted in the inner cavity 532. The circumferential wall of the rotating post 700 is in contact with the inner wall of the inner cavity 532 and rotates to seal.
[0106] The first flow channel 531 extends to the circumferential wall of the inner cavity 532 and communicates with the inner cavity 532.
[0107] The rotating column 700 passes through the mating column 530 and extends beyond the mating column 530. The transmission rod 520 is fixedly connected to the rotating column 700. That is to say, the transmission rod 520 is hinged to the mating column 530 through the rotating column 700.
[0108] The connecting rod 540 has a second flow channel 541 inside. The second flow channel 541 extends along the axial direction of the connecting rod 540. One end of the second flow channel 541 extends to the circumferential wall of the inner cavity 532 and communicates with the inner cavity 532. The other end of the second flow channel 541 extends to the inner wall of the collecting cavity 410 and communicates with the collecting cavity 410.
[0109] The circumferential wall of the rotating column 700 is provided with a connecting hole 710, which extends from one side of the circumferential wall of the rotating column 700 to the other side of the circumferential wall of the rotating column 700.
[0110] In this embodiment, a second one-way structure 533 is provided at one end of the first flow channel 531 near the first one-way structure 610. The second one-way structure 533 allows the fluid in the first flow channel 531 to enter the mating cylinder 600 and prevents the fluid in the mating cylinder 600 from entering the first flow channel 531.
[0111] The connecting hole 710 is configured such that when the mating cover 400 moves to the first end 310 and fits against the inner wall of the guide tube 200, the connecting hole 710 connects the first flow channel 531 with the second flow channel 541, as shown below. Figure 7 and Figure 8 As shown. When the mating cover 400 moves away from the first end 310, at least one of the first flow channel 531 and the second flow channel 541 is disconnected from the connecting hole 710, and the rotating column 700 blocks the first flow channel 531 from the second flow channel 541, as shown. Figure 5 and Figure 6 As shown.
[0112] Specifically, when particulate impurities on the filter plate 300 need to be cleaned, the driver drives the drive rod 510 to move along the axial direction of the guide tube 200 into the guide tube 200, and the mating cover 400 begins to move along the length direction of the filter plate 300 toward the first end 310. The mating cover 400 continuously cleans and collects particulate impurities at the filter plate 300.
[0113] During this process, the end of the transmission rod 520 that is close to the drive rod 510 will continuously swing toward the side where the filter plate 300 is located relative to the end that is close to the mating column 530, and the rotating column 700 will rotate accordingly.
[0114] The mating column 530 and the mating cylinder 600 form a piston-like structure. During the above process, the mating column 530 gradually moves away from the first one-way structure 610. Since the rotating column 700 blocks the first flow channel 531 and the second flow channel 541, a negative pressure is formed in the mating cylinder 600 under the action of the first one-way structure 610 and the second one-way structure 533.
[0115] When the mating cover 400 moves to the first end 310, and the first surface 420 of the mating cover 400 is about to fit against the inner wall of the guide tube 200, the rotating column 700 rotates to... Figure 8 The state shown is such that the connecting hole 710 just connects the first flow channel 531 and the second flow channel 541. Due to the negative pressure inside the mating cylinder 600, under the action of the pressure difference, particulate impurities in the collecting chamber 410 are drawn into the mating cylinder 600 through the second flow channel 541, the connecting hole 710 and the second flow channel 541.
[0116] Once the first surface 420 of the mating cover 400 is fully in contact with the inner wall of the guide tube 200, the extraction process will continue until the pressure is balanced.
[0117] After the particulate impurities in the collection chamber 410 are completely extracted (i.e., after the pressure in the mating cylinder 600 is balanced), the actuator controls the drive rod 510 to move in the reverse direction to reset. The mating cover 400 begins to move towards the second end 320 and separates from the inner wall of the outlet pipe 240. The rotating column 700 rotates in the reverse direction and blocks the first flow channel 531 and the second flow channel 541 again. The mating column 530 also begins to move towards the first one-way structure 610. Under the action of the first one-way structure 610 and the second one-way structure 533, the fluid containing particulate impurities in the mating cylinder 600 will not re-enter the first flow channel 531, but will be pushed out of the mating cylinder 600 by the mating column 530 through the first one-way structure 610.
[0118] The fluid ejected from the 530 column can be collected separately using a collection container for unified processing.
[0119] Once the drive rod 510 is fully reset, the mating column 530 can fully push out the fluid containing particulate impurities from the mating cylinder 600, thus achieving the discharge of particulate impurities.
[0120] This completes the cleaning of 300 particles on the filter plate.
[0121] Through the above design, the following technical effects can be achieved simultaneously using only the single power source of the drive unit and the single drive components of the drive rod 510, transmission rod 520 and mating column 530: (1) Drive the mating cover 400 to scrape off particulate impurities at the filter plate 300; (2) Use the mating cover 400 to concentrate particulate impurities at the filter plate 300 at the first end 310; (3) Automatically form a negative pressure for extracting particulate impurities without additional power, components and equipment; (4) Automatically complete the discharge of particulate impurities without additional power, components and equipment; (5) Automatically control the connection between the first flow channel 531 and the second flow channel 541 without additional power, components and equipment, avoiding excessive fluid loss in the guide tube 200; (6) By setting the inner diameter of the mating cylinder 600, the volume of fluid extracted when extracting particulate impurities can be controlled, thereby minimizing excessive fluid extraction and reducing fluid loss.
[0122] Furthermore, please combine Figure 9 The mating cover 400 is wedge-shaped on the side near the second end 320, that is, the third surface 440 of the mating cover 400 is provided with a wedge-shaped portion 470. With this design, when the mating cover 400 moves towards the second end 320, it can promote the movement of particulate impurities located on the side of the mating cover 400 away from the first end 310 towards the first end 310, thereby facilitating more thorough collection and cleaning of particulate impurities at the filter plate 300.
[0123] It should be noted that the peristaltic pump provided in the embodiments of this application can be flexibly selected for application scenarios according to actual needs, and is not limited to a certain application field.
[0124] As one application of the peristaltic pump provided in this application, this application also provides a fluid transport device, which includes the peristaltic pump described above. When transporting fluid, the peristaltic pump can separate particulate impurities and continuously maintain a stable overall flow rate.
[0125] As one application of the peristaltic pump provided in this application, this application also provides a solid target purification device, which includes a dissolution device, a transfer device, and a purification device. The transfer device is equipped with the peristaltic pump described above.
[0126] The dissolution device is used to dissolve the target material.
[0127] The transfer device is used to transport the dissolved target material to the purification device.
[0128] The purification device is used to purify the dissolved target material.
[0129] The solid target purification device uses a peristaltic pump to transport the target solution, which not only helps to separate particulate impurities that are accidentally mixed into the target, but also continuously ensures the stability of the transport flow rate, thereby ensuring the accuracy of the nuclide configuration and ensuring the efficient and high-quality production of nuclides.
[0130] Furthermore, a corresponding particle acceleration module can be configured for the solid target purification device, that is, to use a particle accelerator to bombard the target and complete the preparation of radionuclides.
[0131] In summary, the peristaltic pump provided in this application embodiment can prevent particulate impurities from damaging the flexible tube and can continuously maintain a stable flow rate. The fluid delivery device provided in this application embodiment can separate particulate impurities and continuously maintain a stable flow rate. The solid target purification device provided in this application embodiment can separate particulate impurities and continuously maintain a stable flow rate, thereby ensuring the efficient and high-quality production of radionuclides.
[0132] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A peristaltic pump, characterized in that, include: Pump body, guide pipe, filter plate, mating cover, drive assembly and extraction assembly; The outlet end of the guide pipe is connected to the inlet end of the pump body, and the inlet end of the guide pipe is used to connect to an external fluid supply pipeline. The filter plate is disposed inside the guide tube and is inclined relative to the guide tube. The filter plate has a first end and a second end disposed opposite to each other. The first end is disposed close to the pump body and the second end is located on the side of the first end away from the pump body. The fitting cover is disposed on the side of the filter plate away from the pump body. The fitting cover is in contact with the filter plate, and the fitting cover and the filter plate enclose each other to form a collection cavity. A collection port communicating with the collection cavity is opened on the side of the fitting cover near the first end. The collection port extends to the surface of the fitting cover in contact with the filter plate. The mating cover is slidably fitted onto the filter plate, and the driving assembly is driven by the mating cover so that the mating cover can slide between the first end and the second end; The extraction component mates with the mating cover; When the mating cover moves to the first end and fits against the inner wall of the guide tube, the inner wall of the guide tube closes the collection port, so that the extraction component can extract particulate impurities from the collection chamber. The drive assembly includes: a drive rod, a transmission rod, and a mating post; The drive rod is arranged along the axial direction of the guide tube and is slidably fitted into the guide tube; The guide tube has an oblique hole in its wall. The oblique hole is located between the filter plate and the first sealing plate. The central axis of the oblique hole is parallel to the surface of the filter plate. The end of the oblique hole that is close to the cavity of the guide tube is called the first end, and the end of the oblique hole that is away from the cavity of the guide tube is called the second end. The second end is located on the side of the first end that is away from the filter plate. The mating post is slidably fitted into the inclined hole, and there is a sliding seal between the mating post and the inclined hole; One end of the transmission rod is hinged to the drive rod, and the other end of the transmission rod is hinged to the mating post. The mating cover and the mating post are fixedly connected by a connecting rod, so that when the drive rod moves along the axial direction of the guide tube, the drive rod can drive the mating post to slide in the inclined hole through the transmission rod, thereby controlling the sliding of the mating cover between the first end and the second end. The extraction component is equipped with a rotating column; The end face of the mating post away from the guide tube has a first flow channel, which extends along the axial direction of the mating post toward the end where the connecting rod is located. The mating post has an inner cavity near the connecting rod. The inner cavity is cylindrical. The rotating post is rotatably fitted into the inner cavity. The circumferential wall of the rotating post is in contact with the inner wall of the inner cavity and rotates to seal. The first flow channel is in communication with the inner cavity; The rotating column passes through the mating column and extends beyond the mating column; the transmission rod is fixedly connected to the rotating column. The connecting rod has a second flow channel inside, one end of which is connected to the inner cavity and the other end of which is connected to the collection cavity. The circumferential wall of the rotating column is provided with a connecting hole, which penetrates the rotating column. When the mating cover moves to the first end and fits against the inner wall of the guide tube, the connecting hole connects the first flow channel and the second flow channel, so that the extraction component can extract particulate impurities in the collection chamber through the mating column; when the mating cover leaves the first end, at least one of the first flow channel and the second flow channel is disconnected from the connecting hole, and the rotating column blocks the first flow channel from the second flow channel.
2. The peristaltic pump according to claim 1, characterized in that, The end of the guide tube away from the pump body is closed by a first sealing plate, the drive rod passes through the first sealing plate, and the drive rod is slidably engaged with the first sealing plate and the two are slidably sealed.
3. The peristaltic pump according to claim 1, characterized in that, The extraction component further includes: a mating cylinder; The fitting sleeve is connected to the outer wall of the guide tube and communicates with the inclined hole; the fitting sleeve and the inclined hole are coaxially arranged. The end of the mating cylinder away from the inclined hole is provided with a first one-way structure; the first one-way structure allows the fluid in the mating cylinder to leave the mating cylinder through the end of the mating cylinder away from the inclined hole, and prevents the fluid outside the mating cylinder from entering the mating cylinder through the end of the mating cylinder away from the inclined hole. The mating post extends into the mating cylinder, and the side wall of the mating post is in contact with the inner wall of the mating cylinder. The mating post is slidably fitted into the mating cylinder and the two are slidably sealed.
4. The peristaltic pump according to claim 3, characterized in that, A second one-way structure is provided at one end of the first flow channel near the first one-way structure. The second one-way structure allows fluid in the first flow channel to enter the mating cylinder and prevents fluid in the mating cylinder from entering the first flow channel.
5. The peristaltic pump according to claim 3, characterized in that, The filter plate is rectangular, and the mating cover extends along the width direction of the filter plate; along the length direction of the filter plate, the mating cover is slidably fitted onto the filter plate.
6. The peristaltic pump according to claim 5, characterized in that, The mating cover is wedge-shaped on the side near the second end.
7. A fluid conveying device, characterized in that, include: The peristaltic pump as described in any one of claims 1-6.
8. A solid target purification device, characterized in that, include: Dissolving apparatus, transfer apparatus, and purification apparatus; The transmission device is equipped with a peristaltic pump as described in any one of claims 1-6; The dissolution device is used to dissolve the target material; The transmission device is used to transport the dissolved target material to the purification device; The purification device is used to purify the dissolved target material.