CN106032800A - Negative pressure magnetic pump - Google Patents
Negative pressure magnetic pump Download PDFInfo
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- CN106032800A CN106032800A CN201510178659.0A CN201510178659A CN106032800A CN 106032800 A CN106032800 A CN 106032800A CN 201510178659 A CN201510178659 A CN 201510178659A CN 106032800 A CN106032800 A CN 106032800A
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- pump
- sleeve
- impeller
- rotor
- pump housing
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Abstract
The invention provides a negative pressure magnetic pump, and relates to the technology field of chemical liquid delivery. The negative pressure magnetic pump is characterized by comprising a motor (1), an external magnet (2), a bracket (3), an isolation sleeve (4), shaft nuts (5), a rotor (6), an insulation sleeve pressing plate (7), an isolation sleeve sealing ring (8), a rotor blocking sleeve (9), a pump shaft (10), a tee-joint inlet (11), shaft sleeves (12), sliding bearings (13), an impeller blocking sleeve (14), an inlet sealing ring (15), a pump body (16), a pump body sealing ring (17), an impeller (18), a pump cover (19), and a bottom plate (20). The negative pressure magnetic pump is advantageous in that, selection of materials for the isolation sleeve is not specifically limited, extra design of internal circulation is not needed, etc.
Description
Technical field
The present invention relates to chemical liquid conveying technology field, be specifically related to a kind of negative pressure magnetic drive pump.
Background technology
The common magnetic drive pump being currently used in chemical liquid is according to the difference of material, accompanying drawing 2 and nonmetal magnetic drive pump are shown in accompanying drawing 3 mainly to have metal magnetic pump to see, conveying and the frame mode of two kinds of magnetic drive pumps are basically identical: chemical liquid is entered pump housing chamber by pump housing import, by pump housing outlet output after pressurization in impeller.Impeller and rotor are fixed on main shaft by axle nut, magnetic drive pump is divided into two chambers by pump cover: pump housing chamber and separation sleeve chamber, the through hole that interior circulation needs is had on pump cover, in the pump housing chamber impeller pressurization liquid can by this through hole enter separation sleeve chamber, lubricate and cool down on main shaft sliding bearing after back flow back into pump housing chamber.Such structure results in a consequence: separation sleeve must be resistant to the pressure that impeller produces.The separation sleeve of metal magnetic pump is metal, so good pressure-resistant performance.But wall thickness is strengthened for preventing separation sleeve deformation when high pressure requirement.Metal material can produce magnetic eddy current, and thickness the biggest magnetic eddy current is the biggest, and magnetic eddy current causes separation sleeve temperature drastically to raise, and metal magnetic pump fault rate is the highest.The separation sleeve of nonmetal magnetic drive pump usually nonmetallic materials are made, so not having magnetic eddy current, but nonmetallic materials are resistance to forces down, and cause nonmetal magnetic drive pump range the narrowest.
Summary of the invention
It is an object of the invention to provide one can high voltage bearing magnetic drive pump, its selection with separation sleeve material is no longer influenced by particularly limiting, and need not additionally be specifically designed the features such as interior circulation.
In order to solve the problem existing for background technology, the present invention is by the following technical solutions: it comprises motor 1, outer magnetic 2, support 3, separation sleeve 4, axle nut 5, rotor 6, separation sleeve pressing plate 7, separation sleeve sealing ring 8, rotor interstage sleeve 9, pump shaft 10, threeway import 11, axle sleeve 12, sliding bearing 13, impeller interstage sleeve 14, import sealing ring 15, the pump housing 16, pump housing sealing ring 17, impeller 18, pump cover 19 and base plate 20, the two ends, left and right of threeway import 11 are respectively arranged with a triangular support bracket, the endoporus close-fitting of bracing frame has anti-wear sleeve 12, its complementary space of triangular support bracket can pass through chemical liquid；Pump shaft 10 is through two axle sleeves 12, and two ends are respectively mounted rotor 6 and impeller 18, and on pump shaft 10, the position close-fitting with axle sleeve 12 correspondence has two sliding bearings 13；Impeller 18 and rotor 6 are locked by axle nut 5 respectively；Impeller interstage sleeve 14 is installed between impeller 18 and axle sleeve 12, rotor interstage sleeve 9 is installed between rotor 6 and axle sleeve 12；Separation sleeve 4 is fixed on one end of threeway import 11 by separation sleeve pressing plate 7, and the pump housing 16 is fixed on the other end of threeway import 11；Pump cover 19 is fixed on the pump housing 16, and the pump housing 16 chamber is completely enclosed；It is outside that support 3 is fixed on separation sleeve pressing plate 7 in threeway import 11, motor 1 and support 3 are linked, outer magnetic 2 is fixed on motor shaft, driven rotor 6 run-in synchronism in separation sleeve 4 by magnetic torque during work, liquid is transferred out by rotor 6 by pump shaft 10 impeller 18, and the pump housing 16 and motor 1 are integrally attached on base 20；Described threeway import 11 two ends are respectively arranged with a triangular support bracket, and the endoporus close-fitting of bracing frame has anti-wear sleeve, and its complementary space of triangular support bracket can pass through chemical liquid；Described pump shaft 10 is through two axle sleeves 12, and two ends are respectively mounted rotor 6 and impeller 18, and on pump shaft 10, the position close-fitting with axle sleeve 12 correspondence has two sliding bearings 13.
It is respectively arranged with static seal between described separation sleeve 4 and threeway import 11, threeway import 11 and the pump housing 16, the pump housing 16 and pump cover 19, prevents chemical liquid from leaking.
The stationary ring that the described pump housing 16, the equal close-fitting of pump cover 19 have high-abrasive material to make, bears the part axial force that pump work produces.
Before and after described impeller 18, cover plate is respectively and fixedly provided with the rotating ring that anticorrosive anti-wear material manufactures.
The operation principle of the present invention: when pumping chemical liquid, chemical liquid enters from threeway import 11, is then entered the pump housing 16 chamber by remaining Tong Guo space of one end triangular support bracket of threeway import 11.Impeller 18 transfers out the pump housing 16 after being pressurizeed by chemical liquid.Owing to separation sleeve 4 and rotor 6 part are at the other end of threeway import 11, it is internal that the highly pressurised liquid that impeller 18 produces cannot be delivered to separation sleeve 4 by threeway import 11.Owing to chemical liquid can produce certain negative pressure by threeway import 11 to the pump housing 16 chamber, separation sleeve 4 position all the time.Therefore the separation sleeve 4 of the present invention has only to bear the negative pressure that at threeway import 11, chemical liquid flowing produces, and the highly pressurised liquid produced with impeller 18 no longer contacts.
Advantages of the present invention:
1, by by rotor and Impeller Design at the two ends of threeway import, separation sleeve has only to bear the negative pressure that the flowing of threeway import chemical liquid produces, without bearing the pressure that impeller work produces.The selection of separation sleeve material is no longer influenced by particularly limiting；
2, being positioned at the two ends of threeway import due to bearing, the chemical liquid of conveying inherently can lubricate paying mill when working with cooling pump continuously----axle sleeve and bearing, therefore need not additionally be specifically designed interior circulation.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of threeway inlet side view of the present invention；
Fig. 3 is metal common magnetic drive pump structural representation；
Fig. 4 is nonmetal common magnetic drive pump structural representation.
Detailed description of the invention
With reference to Fig. 1, a kind of negative pressure magnetic drive pump, it is characterized in that it comprises motor 1, outer magnetic 2, support 3, separation sleeve 4, axle nut 5, rotor 6, separation sleeve pressing plate 7, separation sleeve sealing ring 8, rotor interstage sleeve 9, pump shaft 10, threeway import 11, axle sleeve 12, sliding bearing 13, impeller interstage sleeve 14, import sealing ring 15, the pump housing 16, pump housing sealing ring 17, impeller 18, pump cover 19 and base plate 20, the two ends, left and right of threeway import 11 are respectively arranged with a triangular support bracket, and the endoporus close-fitting of bracing frame has anti-wear sleeve 12；Pump shaft 10 is through two axle sleeves 12, and two ends are respectively mounted rotor 6 and impeller 18, and on pump shaft 10, the position close-fitting with axle sleeve 12 correspondence has two sliding bearings 13；Impeller 18 and rotor 6 are locked by axle nut 5 respectively；Impeller interstage sleeve 14 is installed between impeller 18 and axle sleeve 12, rotor interstage sleeve 9 is installed between rotor 6 and axle sleeve 12；Separation sleeve 4 is fixed on one end of threeway import 11 by separation sleeve pressing plate 7, and the pump housing 16 is fixed on the other end of threeway import 11；Pump cover 19 is fixed on the pump housing 16, and the pump housing 16 chamber is completely enclosed；It is outside that support 3 is fixed on separation sleeve pressing plate 7 in threeway import 11, motor 1 and support 3 are linked, outer magnetic 2 is fixed on motor shaft, driven rotor 6 run-in synchronism in separation sleeve 4 by magnetic torque during work, liquid is transferred out by rotor 6 by pump shaft 10 impeller 18, and the pump housing 16 and motor 1 are integrally attached on base 20；Described threeway import 11 two ends are respectively arranged with a triangular support bracket, and the endoporus close-fitting of bracing frame has anti-wear sleeve, and its complementary space of triangular support bracket can pass through chemical liquid；Described pump shaft 10 is through two axle sleeves 12, and two ends are respectively mounted rotor 6 and impeller 18, and on pump shaft 10, the position close-fitting with axle sleeve 12 correspondence has two sliding bearings 13.
It is respectively arranged with static seal between described separation sleeve 4 and threeway import 11, threeway import 11 and the pump housing 16, the pump housing 16 and pump cover 19, prevents chemical liquid from leaking.
The stationary ring that the described pump housing 16, the equal close-fitting of pump cover 19 have high-abrasive material to make, bears the part axial force that pump work produces.
Before and after described impeller 18, cover plate is respectively and fixedly provided with the rotating ring that anticorrosive anti-wear material manufactures.
When pumping chemical liquid, chemical liquid enters from threeway import, is then entered pump housing chamber by remaining Tong Guo space of one end triangular support bracket of threeway import；Impeller transfers out the pump housing after being pressurizeed by chemical liquid；Owing to separation sleeve and rotor portion cannot pass to separation sleeve by threeway import at the other end of threeway import, the highly pressurised liquid that impeller produces；Owing to chemical liquid can produce certain negative pressure by threeway import to pump housing one-way flow, separation sleeve position all the time；Therefore the separation sleeve of the present invention has only to bear the negative pressure that the flowing of threeway import chemical liquid produces, and the highly pressurised liquid produced with impeller no longer contacts.
By such design, as long as the magnetic drive pump impeller size of the present invention that separation sleeve is manufactured by common material rationally just can transfer out the unaffordable highly pressurised liquid of common magnetic drive pump, significantly widen the use environment of magnetic drive pump, add the life-span of magnetic drive pump, improve the reliability of magnetic drive pump, reducing magnetic drive pump life cycle cost, meet the strict environmental requirement of chemical industry, the present invention has novelty and novelty.
The present invention both can operate with on metal magnetic pump; also can operate with on nonmetal magnetic drive pump; above in conjunction with accompanying drawing, patent of the present invention is exemplarily described; obviously patent of the present invention implements and is not subject to the restrictions described above; if the various improvement that the method design that have employed patent of the present invention is carried out with technical scheme; or it is the most improved that directly apply to other occasion, all within the protection domain of patent of the present invention.
Claims (4)
1. a negative pressure magnetic drive pump, it is characterized in that it comprises motor (1), outer magnetic (2), support (3), separation sleeve (4), axle nut (5), rotor (6), separation sleeve pressing plate (7), separation sleeve sealing ring (8), rotor interstage sleeve (9), pump shaft (10), threeway import (11), axle sleeve (12), sliding bearing (13), impeller interstage sleeve (14), import sealing ring (15), the pump housing (16), pump housing sealing ring (17), impeller (18), pump cover (19) and base plate (20), the two ends, left and right of threeway import (11) are respectively arranged with a triangular support bracket, the endoporus close-fitting of bracing frame has anti-wear sleeve (12), its complementary space of triangular support bracket can pass through chemical liquid；Pump shaft (10) passes two axle sleeves (12), and two ends are respectively mounted rotor (6) and impeller (18), and the position close-fitting that pump shaft (10) is upper and axle sleeve (12) is corresponding has two sliding bearings (13)；Impeller (18) and rotor (6) are locked by axle nut (5) respectively；Impeller interstage sleeve (14) is installed between impeller (18) and axle sleeve (12), rotor interstage sleeve (9) is installed between rotor (6) and axle sleeve (12)；Separation sleeve (4) is fixed on one end of threeway import (11) by separation sleeve pressing plate (7), and the pump housing (16) is fixed on the other end of threeway import (11)；Pump cover (19) is fixed on the pump housing (16), and the pump housing (16) chamber is completely enclosed；Support (3) is fixed on threeway import (11) upper (separation sleeve pressing plate (7) is outside)；Motor (1) and support (3) are linked, and outer magnetic (2) is fixed on motor shaft, are driven rotor (6) run-in synchronism in separation sleeve (4) during work by magnetic torque；Liquid is transferred out by rotor (6) by pump shaft (10) impeller (18), and the pump housing (16) and motor (1) are integrally attached on base (20)；Described threeway import (11) two ends are respectively arranged with a triangular support bracket, and the endoporus close-fitting of bracing frame has anti-wear sleeve, and its complementary space of triangular support bracket can pass through chemical liquid；Described pump shaft (10) passes two axle sleeves (12), and two ends are respectively mounted rotor (6) and impeller (18), and the position close-fitting that pump shaft (10) is upper and axle sleeve (12) is corresponding has two sliding bearings (13).
A kind of negative pressure magnetic drive pump the most according to claim 1, it is characterized in that being respectively arranged with static seal between described separation sleeve (4) and threeway import (11), threeway import (11) and the pump housing (6), the pump housing (16) and pump cover (19), prevent chemical liquid from leaking.
A kind of negative pressure magnetic drive pump the most according to claim 1, it is characterised in that the described pump housing (16), pump cover (19) stationary ring that all close-fitting has high-abrasive material to make, bears the part axial force that pump work produces.
A kind of negative pressure magnetic drive pump the most according to claim 1, it is characterised in that before and after described impeller (18), cover plate is respectively and fixedly provided with the rotating ring that anticorrosive anti-wear material manufactures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510178659.0A CN106032800A (en) | 2015-04-16 | 2015-04-16 | Negative pressure magnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510178659.0A CN106032800A (en) | 2015-04-16 | 2015-04-16 | Negative pressure magnetic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106032800A true CN106032800A (en) | 2016-10-19 |
Family
ID=57148900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510178659.0A Pending CN106032800A (en) | 2015-04-16 | 2015-04-16 | Negative pressure magnetic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106032800A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968961A (en) * | 2017-03-31 | 2017-07-21 | 门立山 | A kind of high temperature centrifugal fluid pump |
| CN109185177A (en) * | 2018-10-28 | 2019-01-11 | 旌开汽车科技（上海）有限公司 | A kind of isolated electronic water pump for automobile of differential |
-
2015
- 2015-04-16 CN CN201510178659.0A patent/CN106032800A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968961A (en) * | 2017-03-31 | 2017-07-21 | 门立山 | A kind of high temperature centrifugal fluid pump |
| CN109185177A (en) * | 2018-10-28 | 2019-01-11 | 旌开汽车科技（上海）有限公司 | A kind of isolated electronic water pump for automobile of differential |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161019 |
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| WD01 | Invention patent application deemed withdrawn after publication |