CN210240015U - Metal magnetic drive pump - Google Patents
Metal magnetic drive pump Download PDFInfo
- Publication number
- CN210240015U CN210240015U CN201920865549.5U CN201920865549U CN210240015U CN 210240015 U CN210240015 U CN 210240015U CN 201920865549 U CN201920865549 U CN 201920865549U CN 210240015 U CN210240015 U CN 210240015U
- Authority
- CN
- China
- Prior art keywords
- pump
- shaft
- pump shaft
- hole
- metal magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
A metal magnetic pump comprises an isolation sleeve arranged between an inner magnetic steel rotor and an outer magnetic steel rotor, a sealing gasket and a sealing ring form a closed cavity, a pump shaft and the inner magnetic steel rotor are sealed in the closed cavity, a cylindrical step is arranged in the middle of the pump shaft, shaft sleeves are symmetrically arranged at two ends of the cylindrical step respectively, sliding bearings are arranged on the shaft sleeves, and balancing blocks are arranged on the outer side end faces of the two sliding bearings respectively; a horizontal pump shaft blind hole is formed in the shaft end face of the joint of the pump shaft and the inner magnetic steel rotor; an outer cylindrical surface of the cylindrical step and an inner hole of the pump cover form an annular space; a pump shaft vertical hole is formed in the cylindrical step in a direction opposite to the symmetric direction, one end of the pump shaft vertical hole is communicated with the through groove, and the other end of the pump shaft vertical hole is communicated with the pump shaft horizontal blind hole. The utility model discloses a circulation mode that high pressure advances, high pressure goes out, and the circulation is smooth and easy, takes away the heat that isolation sleeve and slide bearing produced continuously, has prolonged magnetic drive pump's life, has satisfied the transport of easy gasification medium, strong corrosive medium, heavy load medium etc..
Description
Technical Field
The utility model relates to a pump especially relates to a metal magnetic drive pump.
Background
The metal magnetic pump has wide application, and is particularly suitable for conveying severe fluids such as extremely toxic, flammable and explosive fluids, corrosive fluids and the like. The structure of the magnetic coupling is usually formed by adopting internal and external magnetic steel to transmit torque, and the medium is isolated by an isolation sleeve, so that the dynamic seal is changed into static seal. The shaft for transmitting torque is supported by a sliding bearing, so that heat is generated to quickly reduce the service life of the sliding bearing; the isolating sleeve rotates relative to the inner and outer magnetic rotors and cuts magnetic lines of force in a magnetic field relative to the metal conductor. An electric current is generated which is reflected in the form of heat, i.e. magnetic eddy current heat. The magnetic eddy heat can cause the burning of parts such as sliding bearings, thrust bearings and the like in the magnetic drive centrifugal pump, and further cause the demagnetization of the inner magnetism. Greatly increasing the economic burden of enterprises and solving the long-term cavitation problem of pumps, and urgently requiring technical personnel in the field to solve the problem.
Disclosure of Invention
The utility model aims at providing a metal magnetic drive pump, it can solve above technical problem.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: the utility model provides a metal magnetic drive pump, is equipped with the separation sleeve including interior magnet steel rotor and outer magnet steel rotor within a definite time, and separation sleeve, motor frame, pump cover and the pump body pass through bolted connection and are in the same place, and sealed pad, sealing washer form and seal the chamber, seal pump shaft and interior magnet steel rotor in sealed intracavity, the terminal surface of pump cover on the symmetry be provided with pump cover through-hole, its characterized in that: the pump comprises a pump cover, a pump shaft, a pump cover, a balance block, a pump shaft, a pump cover, a pump shaft, a pump cover and a pump cover, wherein the pump shaft is arranged in the pump cover; a horizontal pump shaft blind hole is formed in the shaft end face of the joint of the pump shaft and the inner magnetic steel rotor, and the length of the horizontal pump shaft blind hole penetrates through the inner cavity of the cylindrical step; the outer cylindrical surface of the cylindrical step and the inner hole of the pump cover (14) form an annular space which is matched with pump cover through holes symmetrically arranged on the end surface of the pump cover; and pump shaft vertical holes are formed in the cylindrical steps in opposite directions, one end of each pump shaft vertical hole is communicated with the through groove, and the other end of each pump shaft vertical hole is communicated with the pump shaft horizontal blind hole.
Preferably: and a pump shaft through hole is formed in the center of the pump shaft.
Preferably: the pump shaft is made of metal.
Preferably: the isolation sleeve is made of metal or polyether-ether-ketone plastic material.
Preferably: the shaft sleeve, the sliding bearing and the balance block are made of hard alloy or silicon carbide materials according to different media.
Preferably: the end face of the pump cover is symmetrically provided with two pump cover through holes, and the aperture of each pump cover through hole is 8-10 mm.
Preferably: the diameters of the pump shaft horizontal blind hole and the pump shaft vertical hole are 8-10 mm.
The utility model has the advantages that; a metal magnetic pump, compare with traditional structure: the utility model discloses a circulation mode that the high pressure advances, the high pressure is extruded, and the circulation is smooth and easy, has solved the produced cavitation problem of easy vaporization medium, can continuously take away the heat that spacer sleeve and slide bearing produced to provide slide bearing with sufficient lubrication, bring a good cooling environment for the spacer sleeve, prolonged magnetic drive pump's life. The conveying of easily gasified media, strong corrosive media, heavy load media and the like is met. The model selection configuration of the metal magnetic pump is enriched.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a medium cooling lubrication cycle arrow of the embodiment of FIG. 1;
FIG. 3 is a schematic structural view of a second embodiment of the present invention;
FIG. 4 is an arrow view of the second medium cooling and lubrication cycle of the embodiment of FIG. 3;
in the figure: 1. the pump comprises a pump body, 2. an impeller, 3. a balance block, 4. a sliding bearing, 5. a pump cover through hole, 6. a pump shaft, 7. a shaft sleeve, 8. a locking nut, 9. a motor, 10. a motor frame, 11. an isolation sleeve, 12. an outer magnetic steel rotor, 13. an inner magnetic steel rotor, 14. the pump cover, 15. the impeller nut, 16. a pump shaft through hole, 17. a pump shaft horizontal blind hole, 18. a pump shaft vertical hole and 19. a cylindrical step.
Detailed Description
In order to make the object, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments;
in the drawings: the utility model provides a metal magnetic drive pump, is equipped with separation sleeve 11 including interior magnet steel rotor 13 and outer magnet steel rotor 12 within a definite time, and separation sleeve 11, motor frame 10, pump cover 14 and pump body 1 pass through bolted connection and are in the same place, and sealed pad, sealing washer form and seal the chamber, seal pump shaft 6 and interior magnet steel rotor 13 in sealed intracavity, the terminal surface of pump cover 14 on the symmetry be provided with pump cover through-hole 5, its characterized in that: a cylindrical step 19 is arranged in the middle of the pump shaft 6, shaft sleeves 7 are symmetrically arranged at two ends of the cylindrical step 19 respectively, sliding bearings 4 are arranged on the shaft sleeves 7, balancing blocks 3 are arranged on the outer side end faces of the two sliding bearings 4 respectively, and the outer cylindrical surface of each sliding bearing 4 is arranged in the inner cavity of the pump cover 14; a pump shaft horizontal blind hole 17 is formed in the shaft end face of the joint of the pump shaft 6 and the inner magnetic steel rotor 13, and the length of the pump shaft horizontal blind hole 17 penetrates through the inner cavity of the cylindrical step 19; the outer cylindrical surface of the cylindrical step 19 and the inner hole of the pump cover (14) form an annular space which is matched with pump cover through holes 5 symmetrically arranged on the end surface of the pump cover; a pump shaft vertical hole 18 is arranged on the cylindrical step 19 in the opposite direction; one end of the pump shaft vertical hole 18 is communicated with the through groove, and the other end is communicated with the pump shaft horizontal blind hole 17.
The center of the pump shaft 6 is provided with a pump shaft through hole 16.
The pump shaft 6 is made of metal.
The isolation sleeve 11 is made of metal or polyether-ether-ketone plastic material.
The shaft sleeve 7, the sliding bearing 4 and the balance block 3 are made of hard alloy or silicon carbide materials according to different media.
The end face of the pump cover 14 is symmetrically provided with two pump cover through holes 5, and the aperture of each pump cover through hole is 8-10 mm.
The aperture of the pump shaft horizontal blind hole 17 and the aperture of the pump shaft vertical hole 18 are 8-10 mm.
In specific implementation, the isolation sleeve is made of metal or polyether-ether-ketone plastic materials according to different characteristics of client conveying media; the cooling scheme is that the problem that friction heat and heat generated by current vortex of a metal isolation sleeve need to be taken away by a sliding bearing for supporting a pump shaft is solved as follows:
in the first embodiment, as shown in fig. 1 and 2, for the working conditions of the metal isolation sleeve which is not strong in corrosivity and not easy to gasify and is suitable for metal, a structure that a pump cover through hole and a pump shaft through hole are formed in the center of a pump cover is adopted, a medium is shown by an arrow in fig. 2, high-pressure liquid at the back of an impeller outlet sequentially flows through the pump cover through hole to an inner magnetic steel rotor and is output from the pump shaft through hole, and a circulation mode of high-pressure inlet and low-pressure outlet is adopted, so that friction heat of a sliding bearing and heat generated by current vortex of the metal isolation sleeve can be stably.
In the second embodiment, as shown in fig. 3 and 4, for the medium working conditions with strong corrosivity and easy gasification, the isolation sleeve is made of a polyetheretherketone plastic material, has insulating property and corrosion resistance, does not cut magnetic lines of force of the inner magnetic cylinder rotor and the outer magnetic cylinder rotor, and does not have heat generated by current vortex, so that the isolation sleeve does not have heat to be taken away, only the heat of the front sliding bearing needs to be considered, and the medium is output after being pressurized by the blades on the back of the impeller, wherein the medium is shown by an arrow in fig. 4, and sequentially flows from the high-pressure liquid on the back of the impeller outlet to the pump cover through hole, the inner magnetic steel rotor to the horizontal blind hole of the pump shaft; a simpler and more efficient cooling and lubricating loop is adopted. A high-pressure inlet and high-pressure outlet circulation mode is established, and friction heat of the sliding bearing can be stably taken away.
The pump shaft and other flow passage components of the metal magnetic pump are made of metal materials, and the metal magnetic pump is particularly suitable for heavy-load occasions. The metal material provides the best stress, temperature and pressure resistance required by heavy load application. For the requirement of corrosivity, a high alloy material can be selected. The shaft sleeve, the sliding bearing and the balance block are made of hard alloy or silicon carbide according to the medium condition.
The circulation mode of high pressure inlet and high pressure outlet is adopted, the circulation is smooth, the cavitation problem generated by the medium easy to vaporize can be easily solved, and the performance of the magnetic pump is ensured.
(1) The liquid circulation function of the magnetic pump;
the spacer sleeve and the plain bearing of the magnetic pump require cooling and lubrication. The cooling and lubricating fluid is the medium (liquid) delivered by the pump and is formed according to the special structural design of the magnetic pump itself. Cooling and lubrication require a cooling and lubrication system that continuously removes heat generated by the spacer sleeve and the plain bearing and provides adequate lubrication to the plain bearing, giving the spacer sleeve a good cooling environment. The liquid plays a role in cooling and lubricating the bearing and the isolating sleeve in the flowing process.
(2) A cooling circulation route designed for the magnetic pump;
the magnetic pump is lubricated by a medium conveyed by the magnetic pump, and mainly cools and lubricates a sliding bearing, a shaft sleeve and a thrust bearing. The cooling and lubrication of the magnetic pump are generally realized by utilizing the pressure difference between the impeller outlet and the impeller inlet, a part of medium is led out from a high-pressure area of the impeller outlet, passes through a pump cover through hole, passes through an internal magnetic coupling and a sliding bearing, and returns to the inlet or the outlet of the pump body, so that the sliding bearing and the isolation sleeve are cooled and lubricated. The arrows in fig. 2 and 4 show two circulation diagrams of the magnetic pump medium for conveying lubrication by itself.
The two cooling loop systems of the embodiment meet the requirements of different medium working conditions. The model selection configuration of the metal magnetic pump is enriched.
The foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.
Claims (7)
1. The utility model provides a metal magnetic drive pump, is equipped with separation sleeve (11) including interior magnet steel rotor (13) and outer magnet steel rotor (12) within a definite time, and separation sleeve (11), motor frame (10), pump cover (14) and pump body (1) are in the same place through bolted connection, and sealed pad, sealing washer form and seal the chamber, seal pump shaft (6) and interior magnet steel rotor (13) in the seal chamber, the terminal surface of pump cover (14) on the symmetry be provided with pump cover through-hole (5), its characterized in that: a cylindrical step (19) is arranged in the middle of the pump shaft (6), shaft sleeves (7) are symmetrically arranged at two ends of the cylindrical step (19) respectively, sliding bearings (4) are arranged on the shaft sleeves (7), balancing blocks (3) are arranged on end faces of the outer sides of the two sliding bearings (4) respectively, and an outer cylindrical surface of each sliding bearing (4) is arranged in an inner cavity of the pump cover (14); a pump shaft horizontal blind hole (17) is formed in the shaft end face of the joint of the pump shaft (6) and the inner magnetic steel rotor (13), and the length of the pump shaft horizontal blind hole (17) penetrates through the inner cavity of the cylindrical step (19); the outer cylindrical surface of the cylindrical step (19) and the inner hole of the pump cover (14) form an annular space which is matched with pump cover through holes (5) symmetrically arranged on the end surface of the pump cover; a pump shaft vertical hole (18) is oppositely arranged above the cylindrical step (19); one end of the pump shaft vertical hole (18) is communicated with the through groove, and the other end of the pump shaft vertical hole is communicated with the pump shaft horizontal blind hole (17).
2. A metal magnetic pump as defined in claim 1, wherein: the center of the pump shaft (6) is provided with a pump shaft through hole (16).
3. A metal magnetic pump as defined in claim 1, wherein: the pump shaft (6) is made of metal.
4. A metal magnetic pump as defined in claim 1, wherein: the isolation sleeve (11) is made of metal or polyether-ether-ketone plastic materials.
5. A metal magnetic pump as defined in claim 1, wherein: the shaft sleeve (7), the sliding bearing (4) and the balance weight (3) adopt hard alloy or silicon carbide materials according to different media.
6. A metal magnetic pump as defined in claim 1, wherein: the end face of the pump cover (14) is symmetrically provided with two pump cover through holes (5), and the aperture of each pump cover through hole (5) is 8-10 mm.
7. A metal magnetic pump as defined in claim 1, wherein: the diameters of the pump shaft horizontal blind hole (17) and the pump shaft vertical hole (18) are 8-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920865549.5U CN210240015U (en) | 2019-06-11 | 2019-06-11 | Metal magnetic drive pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920865549.5U CN210240015U (en) | 2019-06-11 | 2019-06-11 | Metal magnetic drive pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210240015U true CN210240015U (en) | 2020-04-03 |
Family
ID=69974870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920865549.5U Active CN210240015U (en) | 2019-06-11 | 2019-06-11 | Metal magnetic drive pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210240015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116696782B (en) * | 2023-07-18 | 2024-04-26 | 江苏大学 | Multistage magnetic pump |
-
2019
- 2019-06-11 CN CN201920865549.5U patent/CN210240015U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116696782B (en) * | 2023-07-18 | 2024-04-26 | 江苏大学 | Multistage magnetic pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Girdhar et al. | Practical centrifugal pumps | |
| US8602753B2 (en) | Radial bearings for deep well submersible pumps | |
| US20050112003A1 (en) | Pump design for circulating supercritical carbon dioxide | |
| CN103225624A (en) | Double-casing symmetric type radial subdivision multiple-stage centrifugal pump | |
| CN210240015U (en) | Metal magnetic drive pump | |
| CN201982312U (en) | Metal magnetic pump | |
| EA039476B1 (en) | Magnetic coupling assembly | |
| CN209856040U (en) | Multistage canned motor pump and use its water delivery system | |
| CN111794973A (en) | Magnetic centrifugal pump for conveying granular medium | |
| CN214036141U (en) | Suspension magnetic alkali pump | |
| CN105221418B (en) | Magnetic drive single-screw pump | |
| CA3125001C (en) | A pump with a bearing lubrication system | |
| CN210829786U (en) | High-pressure magnetic pump | |
| CN110985389A (en) | Water-based lubricating corrosion-resistant Roots compressor | |
| CN201661504U (en) | Bearing body assembly with labyrinth sealing ring for multistage centrifugal pump bearing body | |
| CN2040177U (en) | Nonleakage and anticorrosive chemical pump | |
| CN108252924B (en) | Magnetic pump for conveying ultralow-temperature easily-vaporized medium | |
| CN219795636U (en) | Rolling bearing magnetic pump | |
| CN204961379U (en) | Dry -type pump bearing retainer | |
| CN201818502U (en) | Multistage centrifugal pump with thrust bearing assembly | |
| CN210127948U (en) | Metal solution high-temperature pump | |
| CN218760982U (en) | Novel heavy-load bearing system | |
| CN111207082A (en) | Low-temperature gasification medium delivery pump | |
| CN111810412B (en) | Non-cantilever magnetic drive pump with homodromous impeller arrangement | |
| CN212389567U (en) | Intermediate support water-lubricating ceramic bearing structure of ultra-long horizontal multistage centrifugal pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |