A half split shell fluoroplastic magnetic drive pump

Abstract

The utility model discloses a kind of half split shell type fluoroplastic magnetic force pumps, comprising: base;Motor is connected on base;Half split shell type pump body is connected on base;Intermediate support is connected between motor and half split shell type pump body;Outer magnetic rotor, one end is connected on the transmission shaft of motor, is rotated by motor linkage, and outer magnetic rotor is surrounded by intermediate support;Isolating sleeve assembly is set in outer magnetic rotor, and one end of isolating sleeve assembly is compressed between half split shell type pump body and intermediate support, and there is inner space between isolating sleeve assembly and half split shell type pump body;Support shaft structure is connected on half split shell type pump body and isolating sleeve assembly, and is set in inner space;And inner magnetic rotor, is linked by outer magnetic rotor, rotates along support shaft structure;So overcome when lining fluoroplastic layer, inconvenient operation, fluoroplastic layer is prone to thin, there is the case of uneven thickness, the quality of pump body is affected, there is the technical problem of security risk.

Description

Technical Field

[0001] This utility model relates to the field of pump technology, specifically a split-jacket type fluoroplastic magnetic pump. Background Technology

[0002] Fluoroplastic magnetic pumps are a type of pump that uses modern magnetic principles and magnetic couplings to transmit power. When the motor drives the outer magnet of the magnetic coupling to rotate, the magnetic lines of force pass through the gap and the isolation sleeve and act on the inner magnet, causing the pump rotor to rotate synchronously with the motor. This transmits torque without mechanical contact, thereby enabling the pump to transport liquid media that are highly corrosive, highly viscous, or contain particulate matter. They are widely used in the transportation of fluid media in chemical production.

[0003] Existing fluoroplastic magnetic pumps have the following shortcomings:

[0004] 1. The pump body adopts an integral plastic-lined structure (an integral plastic-lined structure refers to lining the inner wall of the metal pump casing with a fluoroplastic layer, and the metal pump casing is a single integral structure). Because the metal pump casing is a single integral structure, the operation is inconvenient when lining with a fluoroplastic layer, and the fluoroplastic layer is prone to being too thin or uneven in thickness, which affects the quality of the pump body. When conveying liquid media containing particulate matter, the fluoroplastic layer is prone to wear, creating leakage points, which allows corrosive liquid media to come into contact with the metal pump casing, causing corrosion of the metal pump casing, reducing the service life of the pump body, and posing a safety hazard.

[0005] 2. The structure is relatively complex and inconvenient to assemble. Utility Model Content

[0006] In view of the above-mentioned shortcomings in the related technologies, the purpose is to provide a split-jacket type fluoroplastic magnetic pump to solve the technical problems in the related technologies, such as inconvenient operation when lining with fluoroplastic layer, easy thinning of fluoroplastic layer, uneven thickness, affecting the quality of pump body and posing safety hazards.

[0007] The technical solution to achieve the objective is: a split-jacket type fluoroplastic magnetic pump, comprising:

[0008] Base;

[0009] The motor is connected to the top of the base;

[0010] The pump body is a split-jacket type, connected to the top of the base and spaced apart from the motor;

[0011] An intermediate support component connects the motor and the split-shell pump body;

[0012] An external magnetic rotor is connected at one end to the drive shaft of the motor and at the other end to the direction of the split-shell pump body. It is rotated in conjunction with the motor, and the external magnetic rotor is surrounded by the intermediate support member and spaced apart from the intermediate support member.

[0013] An isolation sleeve assembly is disposed inside the outer magnetic rotor and spaced apart from the outer magnetic rotor. One end of the isolation sleeve assembly is pressed between the split-shell pump body and the intermediate support member. There is an internal space between the isolation sleeve assembly and the split-shell pump body. The isolation sleeve assembly is used to block the fluid medium in the internal space.

[0014] A support shaft structure is connected to the split-shell pump body and the isolation sleeve assembly, and is disposed in the inner space;

[0015] An inner magnetic rotor is disposed in the inner space and is linked with the outer magnetic rotor to rotate along the support shaft structure. The fluid medium enters the inner space and is transported by the inner magnetic rotor along the split-shell pump body.

[0016] Furthermore: the split-shell pump body includes: an inner core, the inner core being made of fluoroplastic, and the inner core having a medium flow channel;

[0017] First half of the outer shell;

[0018] The second half of the outer shell, together with the first half of the outer shell, fits against the outer wall of the inner core and clamps the inner core. The second half of the outer shell and the first half of the outer shell have a number of first holes.

[0019] Several first locking bolts are inserted into the first hole to lock the first half of the outer clamp and the second half of the outer clamp;

[0020] And a sealing element, connected to the outer walls of the first half of the outer shell and the second half of the outer shell, for blocking the second hole on the inner core.

[0021] Furthermore: the sealing element includes: a stop block;

[0022] The first outer covering layer is connected to the stop block, contacts the inner core, and blocks the second hole;

[0023] The pressure plate is inserted into the stop block at the middle position to press down the stop block and the first outer covering layer;

[0024] And at least two second locking bolts, symmetrically arranged, pass through the pressure plate, connect the first half of the outer clamp and the second half of the outer clamp, and press down the pressure plate.

[0025] Furthermore: the intermediate support component includes: a support frame, one end of which is connected to the motor;

[0026] Eye bolts are used to connect to the support frame;

[0027] And an isolation sleeve pressure plate, connected to the first half of the outer shell and the second half of the outer shell, pressing down one end of the isolation sleeve assembly, and the isolation sleeve pressure plate is connected to the other end of the support frame.

[0028] Furthermore: the external magnetic rotor includes: a main body, one end of which is connected to the drive shaft, and the other end of which extends toward the split-shell pump body;

[0029] At least one clamping bolt is connected to one end of the main body to clamp the drive shaft;

[0030] And a first magnet, connected to the other end of the main body, facing the isolation sleeve assembly.

[0031] Furthermore: the isolation sleeve assembly includes: an inner isolation sleeve, one end of which is connected to the support shaft structure, and the other end is disposed between the split-shell pump body and the intermediate support member;

[0032] A sealing gasket is placed between the other end of the inner isolation sleeve and the inner core;

[0033] And an outer isolation sleeve, which is fitted onto the inner isolation sleeve and spaced apart from the outer magnetic rotor, is pressed down by the intermediate support member.

[0034] Furthermore: the support shaft structure includes: a central shaft, one end of which is inserted into the inner isolation sleeve, and the other end extends toward the split-shell pump body;

[0035] A thrust ring is fitted onto the central shaft and positioned between the central shaft and the inner isolation sleeve.

[0036] A central shaft support frame is connected to the inner core and to the other end of the central shaft;

[0037] And a wear ring, connected to the inner core.

[0038] Furthermore: the central shaft support frame includes: a frame body, one end of which is inserted into the central shaft;

[0039] And several connecting arms, evenly distributed on the outer circle of the frame body, with one end inserted into the groove on the inner core one-to-one.

[0040] Furthermore: the inner magnetic rotor includes: a sliding bearing, sleeved on the central shaft, disposed between the thrust ring and the central shaft support frame;

[0041] An inner magnetic assembly is connected to the sliding bearing and is spaced apart from the inner isolation sleeve.

[0042] The impeller is connected at one end to the sliding bearing and the internal magnetic assembly;

[0043] A mouth ring is connected to the other end of the impeller and contacts the wear-bearing ring;

[0044] And several threaded pins connect the internal magnetic assembly and the impeller.

[0045] Furthermore: the internal magnetic assembly includes: a second magnet;

[0046] And a second outer covering layer, which encloses the second magnet, the second outer covering layer being in contact with the sliding bearing and connected to the impeller by the threaded pin.

[0047] The above technical solution has the following beneficial effects: A split-shell fluoroplastic magnetic pump, compared with related technologies, is provided with a base, a motor, a split-shell pump body, an intermediate support, an outer magnetic rotor, an isolation sleeve assembly, a support shaft structure, and an inner magnetic rotor.

[0048] The base and intermediate support form a reliable support structure, which is beneficial for connecting the motor and the split-jacket pump body;

[0049] The isolation sleeve assembly serves an isolation function, blocking the fluid medium within the internal space, reducing the chance of fluid medium leakage, and is relatively safe;

[0050] When the motor is activated, the outer magnetic rotor rotates in conjunction with the inner magnetic rotor, which in turn drives the inner magnetic rotor to rotate. The fluid medium enters the inner space and is transported by the inner magnetic rotor along the split-jacket pump body, thus achieving the purpose of transporting the medium.

[0051] Because the split-shell pump body is a split structure, the probability of the fluoroplastic layer being too thin or uneven in thickness is reduced, which improves the quality of the pump body, makes it relatively safe, and also provides relatively good assembly flexibility and is relatively easy to assemble.

[0052] This overcomes the technical problems of inconvenient operation and uneven thickness of the fluoroplastic lining layer, which affect the quality of the pump body and pose safety hazards. It achieves the technical effect of avoiding an unevenly thin fluoroplastic layer, ensuring relatively uniform thickness, improving the quality of the pump body, and ensuring relative safety, and is practical. Attached Figure Description

[0053] Figure 1 This is a sectional view of the final assembly.

[0054] Figure 2 for Figure 1 Remove the partial sectional view of the base and motor;

[0055] Figure 3 for Figure 2 A partial sectional view removing the split-shell pump body and intermediate support;

[0056] Figure 4 This is a partial sectional view of a split-shell pump body;

[0057] Figure 5 for Figure 4 A magnified view of part A in the diagram;

[0058] Figure 6 One of the exploded views of a split-shell pump body;

[0059] Figure 7 The second exploded view of a split-shell pump body;

[0060] In the diagram: 10. Base, 20. Motor, 30. Split-shell pump body, 30-1. Inner core, 30-11. Medium flow channel, 30-12. Second hole, 30-13. Groove, 30-2. First half of outer shell, 30-3. Second half of outer shell, 30-31. First hole, 30-4. Sealing component, 30-41. Stop block, 30-42. First outer cover layer, 30-43. Pressure plate, 30-44. Second locking bolt, 40. Intermediate support component, 40-1. Support frame, 40-2. Lifting eye bolt, 40-3. Isolation sleeve pressure plate, 50. Outer magnetic rotor, 50-1. Main body, 50 -2. Tightening bolt, 50-3. First magnet, 60. Isolation sleeve assembly, 61. Inner space, 60-1. Inner isolation sleeve, 60-2. Sealing gasket, 60-3. Outer isolation sleeve, 70. Support shaft structure, 70-1. Central shaft, 70-2. Thrust ring, 70-3. Central shaft support frame, 70-31. Frame body, 70-32. Connecting arm, 70-4. Wear ring, 80. Inner magnetic rotor, 80-1. Sliding bearing, 80-2. Inner magnetic assembly, 80-21. Second magnet, 80-22. Second outer cover layer, 80-3. Impeller, 80-4. Mouth ring, 80-5. Threaded pin. Detailed Implementation

[0061] To make the content easier to understand, the following detailed description is provided with reference to specific embodiments and accompanying drawings;

[0062] A split-jacket type fluoroplastic magnetic pump solves the technical problems in related technologies, such as inconvenient operation, uneven thickness of the fluoroplastic layer, and poor pump quality, which affect the quality of the pump body and pose safety hazards. This new pump can be manufactured and used, achieving the positive effects of avoiding uneven thickness of the fluoroplastic layer, ensuring relatively uniform thickness, improving pump quality, and enhancing safety. The overall concept is as follows:

[0063] Implementation methods, such as Figure 1 , Figure 2 As shown; a split-jacket type fluoroplastic magnetic pump, comprising:

[0064] Base 10;

[0065] Motor 20 is connected to the top of the base 10;

[0066] The split-shell pump body 30 is connected to the top of the base 10 and is spaced apart from the motor 20.

[0067] The intermediate support 40 is connected between the motor 20 and the split-shell pump body 30;

[0068] The outer magnetic rotor 50 is connected at one end to the drive shaft of the motor 20 and at the other end extends toward the split-shell pump body 30. It is rotated in conjunction with the motor 20, and the outer magnetic rotor 50 is surrounded by the intermediate support member 40 and spaced apart from the intermediate support member 40.

[0069] An isolation sleeve assembly 60 is disposed inside the outer magnetic rotor 50 and spaced apart from the outer magnetic rotor 50. One end of the isolation sleeve assembly 60 is pressed between the split-shell pump body 30 and the intermediate support member 40. An inner space 61 is provided between the isolation sleeve assembly 60 and the split-shell pump body 30. The isolation sleeve assembly 60 is used to block the fluid medium in the inner space 61.

[0070] A support shaft structure 70 is connected to the split-shell pump body 30 and the isolation sleeve assembly 60, and is disposed in the inner space 61;

[0071] And the inner magnetic rotor 80 is disposed in the inner space 61 and is linked with the outer magnetic rotor 50 to rotate along the support shaft structure 70. The fluid medium enters the inner space 61 and is transported by the inner magnetic rotor 80 along the split-shell pump body 30.

[0072] Specifically, during implementation, the base 10 and the intermediate support 40 form a reliable support structure, which is beneficial for connecting the motor 20 and the split-shell pump body 30.

[0073] The isolation sleeve assembly 60 has an isolation function, blocking the fluid medium in the inner space 61, reducing the probability of fluid medium leakage, and is relatively safe;

[0074] When the motor 20 is activated, it drives the outer magnetic rotor 50 to rotate, and the outer magnetic rotor 50 drives the inner magnetic rotor 80 to rotate (utilizing the principle of magnetic coupling to transmit power, which is common knowledge). The fluid medium enters the inner space 61 and is transported by the inner magnetic rotor 80 along the split-shell pump body 30, thus achieving the purpose of transporting the medium.

[0075] Because the split-shell pump body 30 has a split structure, the probability of the fluoroplastic layer being too thin or uneven in thickness is reduced, the quality of the pump body is improved, it is relatively safe, and the assembly flexibility is relatively good and the assembly is relatively convenient.

[0076] Another implementation method:

[0077] like Figure 1 As shown; in practice, the base 10 is made of channel steel and plate welded together, and has a rectangular structure, forming a reliable support structure, which is conducive to connecting the motor 20 and the split-shell pump body 30.

[0078] The motor 20 is a common structure in the prior art, such as a horizontal motor, which is connected to the base 10 by bolts to generate rotational driving force and drive the external magnetic rotor 50 to rotate. Those skilled in the art can directly and without doubt know how to set it up after seeing the disclosed content, without needing to put in creative effort or conduct excessive experiments.

[0079] Another implementation method:

[0080] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown; in implementation, the split-shell pump body 30 includes: an inner core 30-1, the inner core 30-1 being made of fluoroplastic and having a medium flow channel 30-11 inside; a first half-outer shell 30-2; a second half-outer shell 30-3, which, together with the first half-outer shell 30-2, fits against the outer wall of the inner core 30-1 to clamp the inner core 30-1, and the second half-outer shell 30-3 and the first half-outer shell 30-2 have a plurality of first holes 30-31; a plurality of first locking bolts, which pass through the first holes 30-31 to lock the first half-outer shell 30-2 and the second half-outer shell 30-3; and a sealing member 30-4, which is connected to the outer wall of the first half-outer shell 30-2 and the second half-outer shell 30-3 to block the second hole 30-12 on the inner core 30-1;

[0081] The inner core 30-1 is made of fluoroplastic and is integrally injection molded. The injection molding is relatively convenient and will not result in a thin fluoroplastic layer. The thickness is relatively uniform and relatively safe.

[0082] The inner core 30-1 has a medium flow channel 30-11, which is roughly "b" shaped, which is conducive to the medium being transported along the medium flow channel 30-11 and has relatively good stability.

[0083] The second hole, 30-12, is a through hole;

[0084] The first half of the outer shell 30-2 is made of QT400.

[0085] The second half of the outer shell 30-3 is made of QT400 and clamps the inner core 30-1 together with the first half of the outer shell 30-2. Since the second half of the outer shell 30-3 and the first half of the outer shell 30-2 are split structures (separate settings), the structure is relatively compact, the assembly flexibility is relatively good, and the assembly is relatively convenient.

[0086] The first locking bolt is a common structure in the prior art, such as a hexagonal bolt, nut and washer. Those skilled in the art can directly and without doubt know how to set it after seeing the disclosed content, without needing to put in creative effort or conduct excessive experiments.

[0087] The sealing component 30-4 includes: a stop block 30-41; a first outer covering layer 30-42 connected to the stop block 30-41 and in contact with the inner core 30-1 to block the second hole 30-12; a pressure plate 30-43 inserted into the stop block 30-41 at its middle position to press down the stop block 30-41 and the first outer covering layer 30-42; and at least two second locking bolts 30-44, symmetrically arranged, passing through the pressure plate 30-43, connecting the first semi-outer shell 30-2 and the second semi-outer shell 30-3, and pressing down the pressure plate 30-43.

[0088] The stop block 30-41 has a "T" shaped structure, with a first outer covering layer 30-42 at one end and a pressure plate 30-43 inserted at the other end;

[0089] The first outer covering layer 30-42 is made of fluoroplastic, which has a corrosion-resistant effect and is used to come into direct contact with the medium. After being bonded to the inner core 30-1, it forms a seal to prevent the medium from leaking.

[0090] The pressure plate 30-43 is a rectangular plate structure, which is inserted into the stop block 30-41 through the third hole in the middle (the third hole is a round through hole);

[0091] The second locking bolt 30-44 is a common structure in the prior art, such as a hexagonal bolt and washer, which passes through the fourth hole (the fourth hole is a through hole) on the pressure plate 30-43 and is threadedly connected to the first half outer clamp 30-2 and the second half outer clamp 30-3, pressing the pressure plate 30-43 so that the pressure plate 30-43 can press the stop block 30-41 and the first outer cover layer 30-42, and the first outer cover layer 30-42 is tightly attached to the inner core 30-1;

[0092] Another implementation method:

[0093] like Figure 1 , Figure 2 As shown; in implementation, the intermediate support 40 includes: a support frame 40-1, one end of which is connected to the motor 20; a lifting eye bolt 40-2, which is connected to the support frame 40-1; and an isolation sleeve pressure plate 40-3, which is connected to the first half of the outer shell 30-2 and the second half of the outer shell 30-3, pressing down one end of the isolation sleeve assembly 60, and the isolation sleeve pressure plate 40-3 is connected to the other end of the support frame 40-1;

[0094] The support frame 40-1 is made of HT200. The flange at one end is connected to the motor 20 by bolts, and the flange at the other end is connected to the isolation sleeve pressure plate 40-3 by bolts. The structure is relatively compact and the assembly is relatively convenient.

[0095] The eye bolt 40-2 is a commonly used structure in the prior art. It is threadedly connected to the support frame 40-1 and is used for hoisting. It offers relatively good flexibility in use.

[0096] The isolation sleeve pressure plate 40-3 is connected to the first half outer shell 30-2 and the second half outer shell 30-3 by bolts to press down the isolation sleeve assembly 60. The isolation sleeve pressure plate 40-3 is also connected to the support frame 40-1 by bolts. The structure is relatively compact and the assembly is relatively convenient.

[0097] Another implementation method:

[0098] like Figure 1 , Figure 2 , Figure 3 As shown; in implementation, the external magnetic rotor 50 includes: a main body 50-1, one end of which is connected to the drive shaft, and the other end extending toward the split-shell pump body 30; at least one clamping bolt 50-2, connected to one end of the main body 50-1, clamping the drive shaft; and a first magnet 50-3, connected to the other end of the main body 50-1, facing the isolation sleeve assembly 60;

[0099] The main body 50-1 is made of HT200. One end is inserted into the drive shaft, and a key is provided between it and the drive shaft. The connection is relatively reliable, which is conducive to the main body 50-1 being rotated by the motor 20.

[0100] The tightening bolt 50-2 is an internal hex bolt, used to further tighten the main body 50-1 and the drive shaft, resulting in better connection reliability;

[0101] The first magnet 50-3 is made of neodymium iron boron and is connected to the main body 50-1 to drive the rotation of the inner magnetic component 80-2.

[0102] Another implementation method:

[0103] like Figure 1 , Figure 2 , Figure 3 As shown; in implementation, the isolation sleeve assembly 60 includes: an inner isolation sleeve 60-1, one end of which is connected to the support shaft structure 70, and the other end is disposed between the split-shell pump body 30 and the intermediate support member 40; a sealing gasket 60-2, which is placed between the other end of the inner isolation sleeve 60-1 and the inner core 30-1; and an outer isolation sleeve 60-3, which is fitted on the inner isolation sleeve 60-1, spaced apart from the outer magnetic rotor 50, and pressed down by the intermediate support member 40;

[0104] The inner isolation sleeve 60-1 is made of FEP (commonly known as F46).

[0105] The sealing gasket 60-2 is made of fluororubber, which improves the sealing performance;

[0106] The outer isolation sleeve 60-3 is made of PPS and is fitted onto the inner isolation sleeve 60-1, which improves the structural strength of the inner isolation sleeve 60-1 and makes it relatively safe.

[0107] The isolation sleeve assembly 60 is provided, which has the function of isolation, blocking the fluid medium in the inner space 61, reducing the probability of fluid medium leakage, making it relatively safe, and can also position the support shaft structure 70, so that the central shaft 70-1 is reliably supported.

[0108] Another implementation method:

[0109] like Figure 1 , Figure 2 , Figure 3As shown; in implementation, the support shaft structure 70 includes: a central shaft 70-1, one end of which is inserted into the inner isolation sleeve 60-1, and the other end extending toward the split-shell pump body 30; a thrust ring 70-2, sleeved on the central shaft 70-1 and disposed between the central shaft 70-1 and the inner isolation sleeve 60-1; a central shaft support frame 70-3, connected to the inner core 30-1 and also connected to the other end of the central shaft 70-1; and a wear-bearing ring 70-4, connected to the inner core 30-1;

[0110] Among them, the central axis 70-1 is a stepped axis;

[0111] Among them, the thrust ring 70-2 is made of PTFE, which separates the inner isolation sleeve 60-1 and the sliding bearing 80-1, preventing the sliding bearing 80-1 from directly wearing the inner isolation sleeve 60-1;

[0112] The central shaft support frame 70-3 includes: a frame body 70-31, one end of which is inserted into the central shaft 70-1; and a plurality of connecting arms 70-32, which are evenly distributed on the outer circle of the frame body 70-31, and one end of which is inserted into the groove 30-13 on the inner core 30-1.

[0113] The central axis support frame 70-3 is made of ETFE + 25% carbon fiber. The frame body 70-31 and the connecting arm 70-32 are integrally formed, which is conducive to supporting and positioning the central axis 70-1 and is relatively easy to assemble.

[0114] The wear ring 70-4 is made of SiC (silicon carbide) and is used to contact the mouth ring 80-4 to form a barrier, preventing the inner magnetic rotor 80 from moving towards the split-shell pump body 30 and directly wearing the split-shell pump body 30, thus protecting the split-shell pump body 30 and extending its service life.

[0115] The support shaft structure 70 forms a reliable support structure, which is beneficial for the inner magnetic rotor 80 to rotate around the central shaft 70-1 as the rotation center.

[0116] Another implementation method:

[0117] like Figure 1 , Figure 2 , Figure 3As shown; in implementation, the inner magnetic rotor 80 includes: a sliding bearing 80-1, sleeved on the central shaft 70-1, disposed between the thrust ring 70-2 and the central shaft support frame 70-3; an inner magnetic assembly 80-2, connected to the sliding bearing 80-1, and spaced apart from the inner isolation sleeve 60-1; an impeller 80-3, one end of which is inserted into the sliding bearing 80-1 and the inner magnetic assembly 80-2; a mouth ring 80-4, connected to the other end of the impeller 80-3, and in contact with the wear-bearing ring 70-4; and a plurality of threaded pins 80-5, connecting the inner magnetic assembly 80-2 and the impeller 80-3;

[0118] Among them, the sliding bearing 80-1 is a commonly used structure in the prior art. The material is pressureless sintered silicon carbide (SSiC). When the sliding bearing 80-1 rotates around the central shaft 70-1, the wear between the sliding bearing 80-1 and the central shaft 70-1 is relatively small, and the rotation is relatively smooth.

[0119] The inner magnetic assembly 80-2 includes: a second magnet 80-21; and a second outer covering layer 80-22, which wraps around the second magnet 80-21. The second outer covering layer 80-22 contacts the sliding bearing 80-1 and is connected to the impeller 80-3 by the threaded pin 80-5.

[0120] The second magnet 80-21 is made of samarium cobalt alloy;

[0121] The second outer covering layer 80-22 is made of FEP and covers the outside of the second magnet 80-21 to prevent the second magnet 80-21 from being corroded. It does not affect the second magnet 80-21 from being rotated in conjunction with the first magnet 50-3.

[0122] Among them, the impeller 80-3 is made of FEP, is a closed impeller, and is integrally injection molded. When the impeller 80-3 rotates, a negative pressure will be formed at the central shaft support frame 70-3, and the medium will enter the inner space 61 and be transported along the split-shell pump body 30, thus achieving the purpose of transporting the medium.

[0123] Among them, the mouth ring 80-4 is made of SiC (silicon carbide) and is used to contact the wear ring 70-4 to prevent the impeller 80-3 from directly contacting the wear ring 70-4, thereby reducing the wear rate of the impeller 80-3 and extending its service life.

[0124] Among them, the threaded pin 80-5 is used to connect the internal magnetic assembly 80-2 and the impeller 80-3, which improves the reliability of the connection;

[0125] In the description, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings, and are only for the convenience or simplification of the description, rather than indicating a specific orientation that must be present; the operation process described in the embodiments is not an absolute usage step, and corresponding adjustments can be made in actual use;

[0126] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art; the words “first,” “second,” and similar terms used in the specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components, and similarly, the words “a” or “a” and similar terms do not determine a quantity limitation, but rather indicate the presence of at least one, as determined by the content of the embodiments;

[0127] The above description is only a preferred embodiment, but the scope of protection is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the disclosed technology, based on the technical solution and inventive concept, should be included within the scope of protection.

Claims

1. A split-jacket type fluoroplastic magnetic pump, characterized in that, include: Base; The motor is connected to the top of the base; The pump body is a split-jacket type, connected to the top of the base and spaced apart from the motor; An intermediate support component connects the motor and the split-shell pump body; An external magnetic rotor is connected at one end to the drive shaft of the motor and at the other end to the direction of the split-shell pump body. It is rotated in conjunction with the motor, and the external magnetic rotor is surrounded by the intermediate support member and spaced apart from the intermediate support member. An isolation sleeve assembly is disposed inside the outer magnetic rotor and spaced apart from the outer magnetic rotor. One end of the isolation sleeve assembly is pressed between the split-shell pump body and the intermediate support member. There is an internal space between the isolation sleeve assembly and the split-shell pump body. The isolation sleeve assembly is used to block the fluid medium in the internal space. A support shaft structure is connected to the split-shell pump body and the isolation sleeve assembly, and is disposed in the inner space; An inner magnetic rotor is disposed in the inner space and is linked with the outer magnetic rotor to rotate along the support shaft structure. The fluid medium enters the inner space and is transported by the inner magnetic rotor along the split-shell pump body.

2. The split-jacket type fluoroplastic magnetic pump according to claim 1, characterized in that: The split-jacket pump body includes: an inner core, the inner core being made of fluoroplastic, and the inner core having a medium flow channel; First half of the outer shell; The second half of the outer shell, together with the first half of the outer shell, fits against the outer wall of the inner core and clamps the inner core. The second half of the outer shell and the first half of the outer shell have a number of first holes. Several first locking bolts are inserted into the first hole to lock the first half of the outer clamp and the second half of the outer clamp; And a sealing element, connected to the outer walls of the first half of the outer shell and the second half of the outer shell, for blocking the second hole on the inner core.

3. A split-jacket type fluoroplastic magnetic pump according to claim 2, characterized in that: The sealing component includes: a stop block; The first outer covering layer is connected to the stop block, contacts the inner core, and blocks the second hole; The pressure plate is inserted into the stop block at the middle position to press down the stop block and the first outer covering layer; And at least two second locking bolts, symmetrically arranged, pass through the pressure plate, connect the first half of the outer clamp and the second half of the outer clamp, and press down the pressure plate.

4. A split-jacket type fluoroplastic magnetic pump according to claim 2, characterized in that: The intermediate support component includes: a support frame, one end of which is connected to the motor; Eye bolts are used to connect to the support frame; And an isolation sleeve pressure plate, connected to the first half of the outer shell and the second half of the outer shell, pressing down one end of the isolation sleeve assembly, and the isolation sleeve pressure plate is connected to the other end of the support frame.

5. A split-jacket type fluoroplastic magnetic pump according to claim 1, characterized in that: The external magnetic rotor includes: a main body, one end of which is connected to the drive shaft, and the other end extending toward the split-shell pump body; At least one clamping bolt is connected to one end of the main body to clamp the drive shaft; And a first magnet, connected to the other end of the main body, facing the isolation sleeve assembly.

6. A split-jacket type fluoroplastic magnetic pump according to claim 2, characterized in that: The isolation sleeve assembly includes: an inner isolation sleeve, one end of which is connected to the support shaft structure, and the other end is disposed between the split-shell pump body and the intermediate support member; A sealing gasket is placed between the other end of the inner isolation sleeve and the inner core; And an outer isolation sleeve, which is fitted onto the inner isolation sleeve and spaced apart from the outer magnetic rotor, is pressed down by the intermediate support member.

7. A split-jacket type fluoroplastic magnetic pump according to claim 6, characterized in that: The support shaft structure includes: a central shaft, one end of which is inserted into the inner isolation sleeve, and the other end extends toward the split-shell pump body; A thrust ring is fitted onto the central shaft and positioned between the central shaft and the inner isolation sleeve. A central shaft support frame is connected to the inner core and to the other end of the central shaft; And a wear ring, connected to the inner core.

8. A split-jacket type fluoroplastic magnetic pump according to claim 7, characterized in that: The central shaft support frame includes: a frame body, one end of which is inserted into the central shaft; And several connecting arms, evenly distributed on the outer circle of the frame body, with one end inserted into the groove on the inner core one-to-one.

9. A split-jacket type fluoroplastic magnetic pump according to claim 7, characterized in that: The internal magnetic rotor includes: a sliding bearing, sleeved on the central shaft, and disposed between the thrust ring and the central shaft support frame; An inner magnetic assembly is connected to the sliding bearing and is spaced apart from the inner isolation sleeve. The impeller is connected at one end to the sliding bearing and the internal magnetic assembly; A mouth ring is connected to the other end of the impeller and contacts the wear-bearing ring; And several threaded pins connect the internal magnetic assembly and the impeller.

10. A split-jacket type fluoroplastic magnetic pump according to claim 9, characterized in that: The internal magnetic assembly includes: a second magnet; And a second outer covering layer, which encloses the second magnet, the second outer covering layer being in contact with the sliding bearing and connected to the impeller by the threaded pin.

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