CN101225827A - Separation sleeve for magnetic pump or shield pump - Google Patents
Separation sleeve for magnetic pump or shield pump Download PDFInfo
- Publication number
- CN101225827A CN101225827A CNA200810019563XA CN200810019563A CN101225827A CN 101225827 A CN101225827 A CN 101225827A CN A200810019563X A CNA200810019563X A CN A200810019563XA CN 200810019563 A CN200810019563 A CN 200810019563A CN 101225827 A CN101225827 A CN 101225827A
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- pump
- separation sleeve
- magnetic
- magnetic drive
- hastelloy
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Abstract
The invention relates to an insulating sleeve for magnetic pump or canned motor pump, which adopts hastelloy alloy materials. The insulating sleeve has the advantages of (1) low magnetic-inductive quantity, low turbulent flow and low power consumption of pump because of high electrical resistivity of hastelloy alloy, and (2) expanding the application filed of pump because of the strong corrosion resistance of hastelloy alloy.
Description
Technical field
The present invention relates to a kind of magnetic drive pump or canned motorpump, relate in particular to the separation sleeve on various magnetic drive pumps or the canned motorpump.
Background technique
Magnetic drive pump mainly by pump head, magnetic driving equipment and other component totally three parts form.Wherein the pump head part mainly is made up of parts such as impeller, the pump housing (pumping chamber), bearing, axle sleeve, pump cover, pump shafts; The magnetic driving equipment part mainly is made up of parts such as interior magnet rotor, outer magnet rotor, separation sleeves: other component mainly comprise carriage, base, motor, intermediate bearing body and coupling etc.On motor shaft, be equipped with columnar outside magnet rotor, within it on the side cylndrical surface evenly solid matter N.S utmost point outer steel (permanent magnet) alternately.The right-hand member of pump shaft also adorn one columnar in magnet rotor, same evenly solid matter the N.S utmost point interior magnet steel (permanent magnet) alternately on its cylindrical outer surface.Be provided with separation sleeve between inside and outside magnet rotor, separation sleeve tightly is fixed on the pump cover, and the medium that will be pumped is sealed in the pump housing with the form of static seal, so medium can not leak.When magnet rotor outside the driven by motor rotated, because effect is scolded in the suction of permanent magnet, magnet rotor rotated synchronously in driving, because impeller and interior magnet rotor fuse, thereby impeller also just rotates thereby reach the purpose of carrying liquid together with interior magnet rotor.
Canned motorpump is by centrifugal pump and motor is coaxial constitutes, its pump and motor all are contained in the Seal cage, motor is special, the pump of canned motorpump and motor are associated in together, the rotor of motor and the impeller of pump are fixed on the same axis, utilize housing that the rotor and the stator of motor are separated, rotor turns round in the medium that is transferred, and reaches the purpose of carrying liquid thereby its power passes to rotor by stator field.
As from the foregoing, on magnetic drive pump and canned motorpump, all used separation sleeve (housing), it is to prevent the critical component of the interior medium of the magnetic force contactless transmission pump housing to external leakage, and magnetic drive pump or canned motorpump be mainly used in industries such as chemical industry, petrochemical industry, medicine carry inflammable, explosive, volatile, poisonous, corrosion and precious liquid arranged, therefore the decay resistance to separation sleeve requires more and more higher, and the separation sleeve on existing magnetic drive pump or the canned motorpump is divided into nonmetal and metal two kinds.The separation sleeve that nonmetallic separation sleeve is made as pottery, glass fibre reinforced plastics, enamel, graphite, plastic or other material, though its specific resistance height, as be applied on the magnetic drive pump, the eddy current that the magnet steel rotation produced in the outer steel of magnetic drive pump drove is just little, and the working efficiency of pump is just high.But the nonmetal isolating sleeve bearing capacity is lower, only limits to use under low-pressure state.And adopt the metal separation sleeve, as the separation sleeve that generally adopts austenitic stainless steel material to make at present, though this kind separation sleeve bearing capacity is higher, it is low to there is specific resistance, the inefficient defective of pump.
Summary of the invention
The object of the invention provides a kind of specific resistance height, corrosion resistant separation sleeve for solving the deficiencies in the prior art exactly.
In order to reach above purpose, the technical solution used in the present invention is: a kind of separation sleeve that is used on magnetic drive pump or the canned motorpump, described separation sleeve adopt the Hastelloy material to make.
Further, described Hastelloy is a Ni-Cr-Mo alloy.
As improved plan, described Hastelloy is a nickel-molybdenum alloy.
Owing to adopted above technological scheme, so the present invention has following advantage: separation sleeve adopts the Hastelloy material to make, because the specific resistance of Hastelloy is higher, the separation sleeve that is made into is applied on magnetic drive pump or the canned motorpump, and its magnetic conduction amount is little, and therefore the eddy current that produces is less, thereby the power that pump consumes is less, and Hastelloy has stronger corrosion resistance, and therefore the separation sleeve that is made into is applied on magnetic drive pump or the canned motorpump, can make that the application of pump is further enlarged.
Description of drawings
Accompanying drawing 1 is the sectional view of magnetic drive pump:
Accompanying drawing 2 is the sectional view of canned motorpump;
Wherein: 1, support; 2, transmission shaft; 3, outer magnet rotor; 4, interior magnet rotor; 5, separation sleeve; 6, pump shaft; 7, impeller; 8, pump case;
4 ', rotor; 5 ', separation sleeve; 6 ', pump shaft; 7 ', impeller; 8 ', pump case;
Embodiment
Magnetic drive pump as shown in Figure 1, comprise support 1, the rotatable transmission shaft 2 that is arranged on support 1 inside, be fixedly installed on the outer magnet rotor 3 on the transmission shaft 2, with the outer magnet rotor 3 concentric also magnet rotor 3 magneto drives outside interior magnet rotors 4 of rotation down that are provided with, be arranged on the separation sleeve 5 between outer magnet rotor 3 and the interior magnet rotor 4, the pump shaft of fixedlying connected with interior magnet rotor 4 in one end 6, the impeller 7 that is connected with the other end of pump shaft 6, be arranged at the pump case 8 of impeller 7 outsides, when in use, transmission shaft 2 rotates under driven by motor, driving outer magnet rotor 3 simultaneously rotates, outer magnet rotor 3 is by magnet rotor 4 in the magneto drive, make pump shaft 6 drag impeller 7 and rotate, thereby liquid rotates the purpose that reaches conveying liquid under action of centrifugal force.
Canned motorpump as shown in Figure 2 comprises pump case 8 ' with chamber, is arranged on the pump shaft 6 ' in the pump case 8 ', the impeller 7 ' that is connected with an end of pump shaft 6 ', and the rotor 4 ' that fixedly install concentric with pump shaft 6 ', is used for separation sleeve 5 ' that the rotor of motor and stator are separated.The working principle of magnetic drive pump and canned motorpump is a common practise, does not repeat them here.
Separation sleeve on above-mentioned magnetic drive pump and the canned motorpump is made with Hastelloy, Hastelloy belongs to nickel-base alloy, it with chrome molybdenum as main alloying element, it has the adaptive capacity and the anti-corrosion capacity of strong temperature, at present, Hastelloy mainly is divided into A series, B series, C series and D series alloy, the preferred C series of the present invention Hastelloy, this kind alloy main component is nickel-chromium-molybdenum, because chromium can form fine and close patina at alloy surface, anti-oxidant environment capacity is provided, therefore and molybdenum mainly provides anti-reducing environment ability, and adopting the separation sleeve of C series Hastelloy to can be applicable to existing oxide isolation has again in the environment of reducing medium, and adopts the magnetic drive pump of this kind separation sleeve or canned motorpump magnetic conduction amount in work less, so the eddy current that produces is less, therefore can improve the working efficiency of pump.
As another preferred version of the present invention, separation sleeve can adopt A, B series Hastelloy, this series alloy mainly is made up of nickel, molybdenum, has stronger anti-corrosion capacity, it is applied on the separation sleeve of magnetic drive pump or canned motorpump, and in work, the magnetic conduction amount is less, so the eddy current that produces is less, therefore can improve the working efficiency of pump.
Claims (3)
1. separation sleeve that is used on magnetic drive pump or the canned motorpump is characterized in that: described separation sleeve adopts the Hastelloy material to make.
2. a kind of separation sleeve that is used on magnetic drive pump or the canned motorpump according to claim 1 is characterized in that: described Hastelloy is a Ni-Cr-Mo alloy.
3. a kind of separation sleeve that is used on magnetic drive pump or the canned motorpump according to claim 1 is characterized in that: described Hastelloy is a nickel-molybdenum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810019563XA CN101225827A (en) | 2008-01-21 | 2008-01-21 | Separation sleeve for magnetic pump or shield pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810019563XA CN101225827A (en) | 2008-01-21 | 2008-01-21 | Separation sleeve for magnetic pump or shield pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101225827A true CN101225827A (en) | 2008-07-23 |
Family
ID=39857984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810019563XA Pending CN101225827A (en) | 2008-01-21 | 2008-01-21 | Separation sleeve for magnetic pump or shield pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101225827A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291640A (en) * | 2012-02-29 | 2013-09-11 | 黄佳华 | Vertical type nitrogen gas seal cooling magnetic liquid blanking slurry pump |
| CN103629118A (en) * | 2013-12-10 | 2014-03-12 | 江苏大学 | Vertical pipeline permanent magnet canned motor pump |
| CN110056532A (en) * | 2019-05-05 | 2019-07-26 | 台州市禺工泵业科技有限公司 | A kind of check ring joint structure of outer rotor impeller of pump and main shaft |
| CN111594481A (en) * | 2020-05-28 | 2020-08-28 | 沈阳工业大学 | Low-eddy-loss high-efficiency magnetic pump |
| CN111725934A (en) * | 2019-03-22 | 2020-09-29 | 广东德昌电机有限公司 | Fluid pump |
| CN111810439A (en) * | 2020-08-18 | 2020-10-23 | 大连海密梯克泵业有限公司 | Anti-dead-bearing structure of serial multistage pump sliding bearing and multistage canned motor pump |
| CN113266579A (en) * | 2021-05-24 | 2021-08-17 | 合肥工业大学 | Shielding pump isolation sleeve burst protection method and device and shielding pump |
| CN115528883A (en) * | 2022-11-25 | 2022-12-27 | 福建省福安市力德泵业有限公司 | Magnetic pump outer magnetic rotor |
-
2008
- 2008-01-21 CN CNA200810019563XA patent/CN101225827A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291640A (en) * | 2012-02-29 | 2013-09-11 | 黄佳华 | Vertical type nitrogen gas seal cooling magnetic liquid blanking slurry pump |
| CN103629118A (en) * | 2013-12-10 | 2014-03-12 | 江苏大学 | Vertical pipeline permanent magnet canned motor pump |
| CN103629118B (en) * | 2013-12-10 | 2016-03-02 | 江苏大学 | A kind of riser permanent magnet shield pump |
| CN111725934A (en) * | 2019-03-22 | 2020-09-29 | 广东德昌电机有限公司 | Fluid pump |
| WO2020192492A1 (en) * | 2019-03-22 | 2020-10-01 | 广东德昌电机有限公司 | Fluid pump |
| US11764646B2 (en) | 2019-03-22 | 2023-09-19 | Johnson Electric International AG | Fluid pump |
| CN111725934B (en) * | 2019-03-22 | 2024-04-23 | 广东德昌电机有限公司 | Fluid pump |
| CN110056532A (en) * | 2019-05-05 | 2019-07-26 | 台州市禺工泵业科技有限公司 | A kind of check ring joint structure of outer rotor impeller of pump and main shaft |
| CN111594481A (en) * | 2020-05-28 | 2020-08-28 | 沈阳工业大学 | Low-eddy-loss high-efficiency magnetic pump |
| CN111810439A (en) * | 2020-08-18 | 2020-10-23 | 大连海密梯克泵业有限公司 | Anti-dead-bearing structure of serial multistage pump sliding bearing and multistage canned motor pump |
| CN113266579A (en) * | 2021-05-24 | 2021-08-17 | 合肥工业大学 | Shielding pump isolation sleeve burst protection method and device and shielding pump |
| CN115528883A (en) * | 2022-11-25 | 2022-12-27 | 福建省福安市力德泵业有限公司 | Magnetic pump outer magnetic rotor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080723 |