CN204716549U - High pressure resistant magnetic drive pump - Google Patents
High pressure resistant magnetic drive pump Download PDFInfo
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- CN204716549U CN204716549U CN201520253782.XU CN201520253782U CN204716549U CN 204716549 U CN204716549 U CN 204716549U CN 201520253782 U CN201520253782 U CN 201520253782U CN 204716549 U CN204716549 U CN 204716549U
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- pump
- impeller
- pump cover
- magnet rotor
- separation sleeve
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Abstract
The high pressure resistant magnetic drive pump of the utility model, include the pump housing (1), pump cover (2), pump shaft (3), impeller (4), interior magnet rotor (5), outer magnet rotor (6), separation sleeve (7), link press span (8) and live axle, driving shaft bearing case, in the pump housing (1), fit through bolt be fixedly connected with and be provided with spacer ring (9) with pump cover (2) seam and form pump chamber sidewall, the interior annular distance (90) of spacer ring (9) forms pump chamber liquid entering hole, the feed liquor mouth of pipe (21) is offered in the radial direction of pump cover (2), pump cover (2) has drainage inlet opening (24), return port (30) is had in the heart in pump shaft (3).The pressure that its separation sleeve inner chamber (70) bears is equal to the inlet pressure of pump, improves the voltage endurance capability of pump, and what the bearing means (31) of pump shaft was in flowing completely enters in liquid medium environment, good cooling results, convenient processing, reduces cost of production, long service life.
Description
Technical field
The utility model relates to magnetic drive pump.Particularly to the improvement of magnetic drive pump entrance structure, be more suitable for inlet pressure high operating mode and use.
Background technique
Magnetic drive pump has drawn together the pump housing 1, pump cover 2, pump shaft 3, impeller 4, interior magnet rotor 5, outer magnet rotor 6, separation sleeve 7, the live axle of link press span 8 and the outer magnet rotor 6 of connection, driving shaft bearing case, pump shaft 3 is rotatably assorted by the bearing sleeve 20 on bearing means 31 and pump cover 2 and installs, impeller 4 is fixedly mounted on the front axle head of the pump shaft 3 in the pump housing 1, interior magnet rotor 5 is fixedly mounted on the rear axle head of pump shaft 3, outer magnet rotor 6 is fixedly mounted on live axle axle head, between interior magnet rotor 5 and outer magnet rotor 6, separation sleeve 7 is set, separation sleeve 7 and pump cover 2 are sealedly and fixedly connected, the pump housing 1, pump cover 2, between link press span 8, docking is fixedly connected with mutually, driving shaft bearing case docks with link press span 8 and is fixedly connected with.
The feed liquor mouth of pipe 10 of above-mentioned prior art pump is arranged on the pump housing 1 front-end face center, on the pump housing 1, corresponding impeller 4 radial direction offers liquid outlet, pump cover 2 offers the cooling liquid inlet opening a communicated with the pump housing 2 zone of high pressure (impeller outlet place), the media fluid in the pump housing 2 inner high voltage district is introduced separation sleeve 7 inner chamber 70, the liquid outlet opening b offered in the heart in pump shaft 3 is back to the low pressure area, liquid entering hole place of the pump housing 1, utilize pumped medium to carry out self-loopa, the eddy current torrid zone that magnet rotor magnetic force line cutting metal separation sleeve 7 inside and outside separation sleeve 7 inner chamber produces is walked to cool; Offer return port c in the low pressure area of impeller 4, the certain media in separation sleeve 7 inner chamber 70, the circulation groove offered on pump shaft 3 bearing means 31 carries out self-loopa through return port c and carries out Cooling and Lubricator to bearing means 31 simultaneously.
Above-mentioned prior art introduces the pump housing 1 zone of high pressure (impeller outlet place) medium due to separation sleeve 7 inner chamber 70, so the pressure in separation sleeve 7 inner chamber 70 is equal to the high-pressure at the pump housing 1 impeller outlet place, makes separation sleeve 7 bear elevated pressures.
Due to the impact by inside and outside magnet rotor magnetic gap restriction and eddy current loss, the wall thickness of separation sleeve 7 can not be designed to any thickness to meet intensity of pressure requirement, therefore the outlet pressure of magnetic drive pump is greatly limited, thus the rated lift of pump receives corresponding impact, limit the application of magnetic drive pump in high pressure, high-lift operating mode, when particularly magnetic drive pump uses as secondary pumps, the separation sleeve 7 of magnetic drive pump will bear higher pressure.
In addition, separation sleeve 7 under pressure sleeve can produce Peng and to rise distortion, just needs correspondingly to add imperial palace magnet rotor 5 and the matching gap of outer magnet rotor 6, affect magnetic lotus root conjunction transmission efficiency.
Magnetic drive pump is applied to poisonous often, the conveying of inflammable medium, once separation sleeve 7 breaks because of pressure damage, it is serious that medium reveals the safety consequences caused.
Model utility content
The purpose of this utility model improves for above-mentioned the deficiencies in the prior art, provides a kind of structure simple, manufactures, assembling, easy to maintenance, reliable, can be used for the high pressure resistant magnetic drive pump that lift and the higher operating mode of inlet pressure use.
The utility model has included the pump housing 1, pump cover 2, pump shaft 3, impeller 4, interior magnet rotor 5, outer magnet rotor 6, separation sleeve 7, link press span 8 and live axle, driving shaft bearing case, pump shaft 3 is rotatably assorted by the bearing sleeve 20 on bearing means 31 and pump cover 2 and installs, impeller 4 is fixedly mounted on the front axle head of the pump shaft 3 in the pump housing 1, interior magnet rotor 5 is fixedly mounted on the rear axle head of pump shaft 3, outer magnet rotor 6 is fixedly mounted on live axle axle head, between interior magnet rotor 5 and outer magnet rotor 6, separation sleeve 7 is set, separation sleeve 7 and pump cover 2 are sealedly and fixedly connected, the pump housing 1 docks with pump cover 2 and is fixedly connected with, link press span 8 docks with pump cover 2 and is fixedly connected with, driving shaft bearing case docks with link press span 8 and is connected, it is characterized in that: in the pump housing 1, fit through bolt with pump cover 2 seam be fixedly connected with and be provided with spacer ring 9, the radial outer ring surface 91 of spacer ring 9 coordinates with the pump housing 1, the left surface 92 of spacer ring 9 and the right flank Spielpassung of impeller 4, form pump chamber sidewall, the interior annular distance 90 of spacer ring 9 forms the pump chamber liquid entering hole of impeller 4, the feed liquor mouth of pipe 21 is offered in the radial direction of pump cover 2, medium enters in pump cover 2 inner chamber 22 by pump cover 2 being offered the feed liquor mouth of pipe 21, the impeller 4 pump chamber liquid entering hole formed by annular distance 90 in spacer ring 9 enters impeller 4,
The wall 23 of pump cover 2 has drainage inlet opening 24, return port 30 is had in the heart in pump shaft 3, on pump shaft 3, the corresponding impeller 4 in the front end of return port 30 has radial hole 30 ', utilize the Pressure Drop that impeller 4 root place produces, make the medium entering pump cover 2 inner chamber 22, the supercentral return port 30,30 ' of the drainage inlet opening 24 offered on the wall 23 of pump cover 2, separation sleeve 7 inner chamber 70, pump shaft 3 flows to the root of impeller 4, walks to cool by the eddy current torrid zone that magnet rotor magnetic force line cutting metal separation sleeve 7 inside and outside separation sleeve 7 inner chamber 70 produces.
The utility model structure is simple, manufactures, assembling, easy to maintenance, reliable, can be used for the magnetic drive pump that lift and the higher operating mode of inlet pressure use.
The utility model due to separation sleeve 7 inner chamber 70 be pump intake medium by what end face 23 has the vertical of pump cover 2 that drainage inlet opening 24 enters, namely separation sleeve 7 inner chamber 70 is connected with the liquid entering hole end of pump, the pressure that separation sleeve 7 inner chamber 70 bears is equal to the inlet pressure of pump, separation sleeve 7 inner chamber 70 does not affect by impeller 4 outlet end high-pressure, the pressure of its relative impeller 4 outlet end reduces greatly, separation sleeve 7 inner chamber 70 internal pressure is low, improve the applying working condition of separation sleeve 7, as long as separation sleeve 7 can meet the requirement of strength of the inlet pressure level of pump, use thinner separation sleeve 7, magnetic drive pump can be designed to the lift of arbitrary height in theory, improve the safety in utilization of separation sleeve 7 and magnetic drive pump.Under identical operating mode, separation sleeve 7 can do thinner, reduces eddy current loss, raises the efficiency.Reduce interior magnet rotor 5 and the matching gap of outer magnet rotor 6 simultaneously, effectively can improve magnetic lotus root and close transmission efficiency.
The utility model magnetic drive pump goes for the higher operating mode of inlet pressure and uses, as used as secondary pumps.
The utility model is in the inner chamber 22 of pump cover 2 due to the bearing means 31 of pump shaft 3, what the bearing means 31 of pump shaft 3 was in flowing completely enters in liquid medium environment, and substantially not by the impact of separation sleeve 7 inner chamber 70 medium temperature, the cooling of the bearing means 31 of pump shaft 3, high lubricating effect, the coolant flow channel mechanism on bearing means 31 can be saved, convenient processing, reduces cost of production.
The utility model import cavity (pump cover cavity) is large, and buffer function is effective.When in medium containing a small amount of impurity time, directly can discharge under impeller 4 suction, or precipitate in pump cover 2 inner chamber 22, not easily enter in separation sleeve 7 inner chamber 70, cause the friction to separation sleeve 7, extend separation sleeve 7 working life.And the impurity in separation sleeve 7 inner chamber 70 not easily enters in bearing means 31 and causes damage to friction pair, extend bearing, axle sleeve working life.
Accompanying drawing explanation
Fig. 1 is prior art structural representation.
Fig. 2 is the utility model example structure schematic diagram.
Fig. 3 is the left view of Fig. 1.
Embodiment
The utility model has included the pump housing 1, pump cover 2, pump shaft 3, impeller 4, interior magnet rotor 5, outer magnet rotor 6, separation sleeve 7, link press span 8 and live axle, driving shaft bearing case, pump shaft 3 is rotatably assorted by the bearing sleeve 20 on bearing means 31 and pump cover 2 and installs, impeller 4 is fixedly mounted on the front axle head of the pump shaft 3 in the pump housing 1, interior magnet rotor 5 is fixedly mounted on the rear axle head of pump shaft 3, outer magnet rotor 6 is fixedly mounted on live axle axle head, between interior magnet rotor 5 and outer magnet rotor 6, separation sleeve 7 is set, separation sleeve 7 and pump cover 2 are sealedly and fixedly connected, the pump housing 1 docks with pump cover 2 and is fixedly connected with, link press span 8 docks with pump cover 2 and is fixedly connected with, driving shaft bearing case docks with link press span 8 and is connected, it is characterized in that: in the pump housing 1, fit through bolt with pump cover 2 seam be fixedly connected with and be provided with spacer ring 9, the radial outer ring surface 91 of spacer ring 9 coordinates with the pump housing 1, the left surface 92 of spacer ring 9 and the right flank Spielpassung of impeller 4, form pump chamber sidewall, the interior annular distance 90 of spacer ring 9 forms the pump chamber liquid entering hole of impeller 4, the feed liquor mouth of pipe 21 is offered in the radial level direction of pump cover 2, medium enters in pump cover 2 inner chamber 22 by pump cover 2 being offered the feed liquor mouth of pipe 21, the impeller 4 pump chamber liquid entering hole formed by annular distance 90 in spacer ring 9 enters impeller 4, the wall 23 of pump cover 2 has drainage inlet opening 24, return port 30 is had in the heart in pump shaft 3, on pump shaft 3, the corresponding impeller 4 in the front end of return port 30 has radial hole 30 ', utilize the Pressure Drop that impeller 4 root place produces, make the medium entering pump cover 2 inner chamber 22, the supercentral return port 30,30 ' of the drainage inlet opening 24 offered on the wall 23 of pump cover 2, separation sleeve 7 inner chamber 70, pump shaft 3 flows to the root of impeller 4, walks to cool by the eddy current torrid zone that magnet rotor magnetic force line cutting metal separation sleeve 7 inside and outside separation sleeve 7 inner chamber 70 produces.
Shown in accompanying drawing 2 embodiment, the bearing sleeve 20 of the utility model on pump cover 2 offers seam and coordinate with wall 23 seam on pump cover 2 and be bolted to connection.To facilitate, handling replacing is keeped in repair to the plain bearing arrangement 31 on bearing sleeve 20.
Shown in accompanying drawing 2 embodiment, the utility model is provided with connecting tube 13 between the front end axle cap 12 of the pump housing 1 and the zone of high pressure (namely between impeller 4 outer portion) of the pump housing 1, through hole 45 is offered at impeller 4 root, the medium of the pump housing 1 zone of high pressure is through entering in axle cap 12 inner chamber connecting tube 13, gap through between the choma 14 of impeller 4 wheel hub and the pump housing 1, the through hole 45 of impeller 4 root are back to impeller 4 inner ring place, automatic cycle is carried out to the medium in front end axle cap 12 inner chamber of the pump housing 1, prevents the medium in front end axle cap 12 inner chamber of the pump housing 1 from producing and accumulate precipitation and vaporization.
The utility model offers mud hole and plug 26 in the bottom of pump cover 2.
Claims (4)
1. high pressure resistant magnetic drive pump, include the pump housing (1), pump cover (2), pump shaft (3), impeller (4), interior magnet rotor (5), outer magnet rotor (6), separation sleeve (7), link press span (8) and live axle, driving shaft bearing case, pump shaft (3) is rotatably assorted by the bearing sleeve (20) on bearing means (31) and pump cover (2) and installs, impeller (4) is fixedly mounted on the front axle head of the pump shaft (3) in the pump housing (1), interior magnet rotor (5) is fixedly mounted on pump shaft (3) afterwards on axle head, outer magnet rotor (6) is fixedly mounted on live axle axle head, separation sleeve (7) is set between interior magnet rotor (5) and outer magnet rotor (6), separation sleeve (7) and pump cover (2) are sealedly and fixedly connected, the pump housing (1) docks with pump cover (2) and is fixedly connected with, link press span (8) docks with pump cover (2) and is fixedly connected with, driving shaft bearing case docks with link press span (8) and is connected, it is characterized in that: in the pump housing (1), fit through bolt with pump cover (2) seam be fixedly connected with and be provided with spacer ring (9), the radial outer ring surface (91) of spacer ring (9) coordinates with the pump housing (1), the left surface (92) of spacer ring (9) and the right flank Spielpassung of impeller (4), form pump chamber sidewall, the interior annular distance (90) of spacer ring (9) forms the pump chamber liquid entering hole of impeller (4), the feed liquor mouth of pipe (21) is offered in the radial direction of pump cover (2), medium enters in pump cover (2) inner chamber (22) by pump cover (2) being offered the feed liquor mouth of pipe (21), impeller (4) the pump chamber liquid entering hole formed by the interior annular distance (90) of spacer ring (9) enters impeller (4),
The wall (23) of pump cover (2) has drainage inlet opening (24), return port (30) is had in the heart in pump shaft (3), the corresponding impeller (4) in front end of the upper return port (30) of pump shaft (3) has radial hole (30 '), utilize the Pressure Drop that impeller (4) root place produces, make the drainage inlet opening (24) that the medium entering pump cover (2) inner chamber (22) is offered on the wall (23) of pump cover (2), separation sleeve (7) inner chamber (70), the supercentral return port (30 of pump shaft (3), 30 ') root of impeller (4) is flowed to, the eddy current torrid zone that inside and outside for separation sleeve (7) inner chamber (70) magnet rotor magnetic force line cutting metal separation sleeve (7) produces is walked to cool.
2. high pressure resistant magnetic drive pump according to claim 1, it is characterized in that, the bearing sleeve (20) on pump cover (2) offers seam and coordinate with wall (23) seam on pump cover (2) and be bolted to connection.
3. high pressure resistant magnetic drive pump according to claim 1 and 2, it is characterized in that, connecting tube (13) is provided with between the front end axle cap (12) of the pump housing (1) and the zone of high pressure of the pump housing (1), through hole (45) is offered at impeller (4) root, the medium of the pump housing (1) zone of high pressure is through entering in axle cap (12) inner chamber connecting tube (13), gap through between the choma (14) of impeller (4) wheel hub and the pump housing (1), the through hole (45) of impeller (4) root is back to impeller (4) inner ring place, automatic cycle is carried out to the medium in front end axle cap (12) inner chamber of the pump housing (1), prevent the medium in front end axle cap (12) inner chamber of the pump housing (1) from producing and accumulate precipitation and vaporization.
4. high pressure resistant magnetic drive pump according to claim 1 and 2, is characterized in that, offers mud hole and plug (26) in the bottom of pump cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520253782.XU CN204716549U (en) | 2015-04-24 | 2015-04-24 | High pressure resistant magnetic drive pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520253782.XU CN204716549U (en) | 2015-04-24 | 2015-04-24 | High pressure resistant magnetic drive pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716549U true CN204716549U (en) | 2015-10-21 |
Family
ID=54315550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520253782.XU Active CN204716549U (en) | 2015-04-24 | 2015-04-24 | High pressure resistant magnetic drive pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716549U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806530A (en) * | 2015-04-24 | 2015-07-29 | 丹东通博泵业有限公司 | High pressure resistant magnetic pump |
| CN108980055A (en) * | 2018-07-17 | 2018-12-11 | 安徽南方化工泵业有限公司 | A kind of metal magnetic pump with high pressure resistant function |
-
2015
- 2015-04-24 CN CN201520253782.XU patent/CN204716549U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806530A (en) * | 2015-04-24 | 2015-07-29 | 丹东通博泵业有限公司 | High pressure resistant magnetic pump |
| CN108980055A (en) * | 2018-07-17 | 2018-12-11 | 安徽南方化工泵业有限公司 | A kind of metal magnetic pump with high pressure resistant function |
| CN108980055B (en) * | 2018-07-17 | 2020-04-07 | 安徽南方化工泵业有限公司 | Metal magnetic drive pump with high pressure resistant function |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |