CN201810584U - Sealing device of magnetic pump - Google Patents
Sealing device of magnetic pump Download PDFInfo
- Publication number
- CN201810584U CN201810584U CN2010201794937U CN201020179493U CN201810584U CN 201810584 U CN201810584 U CN 201810584U CN 2010201794937 U CN2010201794937 U CN 2010201794937U CN 201020179493 U CN201020179493 U CN 201020179493U CN 201810584 U CN201810584 U CN 201810584U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- magnet ring
- pump
- impeller
- airtight
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a sealing device of a magnetic pump, which comprises a pump body and a pump head arranged outside the pump, a magnetic impeller and a bearing pedestal arranged inside the pump, and a bearing arranged inside the bearing pedestal; a center shaft hole of the magnetic impeller is closed to form a magnetic ring cavity, of which a magnetic ring opening faces downwards and other parts are closed; and after the magnetic ring of the magnetic impeller is mounted into the magnetic ring chamber, the inner wall of the magnetic ring of the magnetic impeller forms a space separated from a medium at the lower part of the magnetic ring chamber. The utility model has the benefits as follows: the service life of the magnetic pump is greatly prolonged and is longer than that of a general pump, thereby achieving the aims of reducing the cost and improving the work efficiency.
Description
Technical field
The utility model relates to a kind of seal arrangement of magnetic drive pump.
Background technique
Magnetic drive pump is unique leak free advanced safety pump equipment, and pump head is generally arranged, band magnetic impeller, and axle sleeve (magnet ring center), the pump housing, axle, magnetic force outer shroud and motor are formed.Because the Security of magnetic drive pump is so all be applied to high temperature, the conveying of high-risk material, these materials have very high harmfulness, flowability, danger, such as: severe corrosive, radiativity, toxicity, consequence if take place to leak with unimaginable in high temperature etc., magnetic drive pump is in order to guarantee these high temperature, and zero of high-risk material is revealed.Many technology commonly used, design, selection have been subjected to considerable restraint, and traditional magnetic drive pump is because band magnetic impeller, axle, and axle sleeve directly is immersed in the medium and works.So the most frequently used, the most effective plain shaft has born environmental constraint, the tradition magnetic drive pump has been used bearing instead axle sleeve and directly rotary mode design of axle because of technical limitations, and because the severe corrosive of medium, axle, axle sleeve selection also have been subjected to considerable restraint, the magnetic drive pump of conventional art is under numerous technical limitations, fail effectively to solve the technical problem that occurs in using, many methods that are compelled against one's will have been adopted, institute is so that traditional magnetic drive pump is very short working life, the selection difficulty, the maintenance cost height, shortcomings such as inefficiency.
The model utility content
For overcoming the defective of prior art, the technical problems to be solved in the utility model has provided a kind of seal arrangement of magnetic drive pump.
To achieve these goals, technical solution adopted in the utility model is: a kind of seal arrangement of magnetic drive pump, comprise the pump housing, pump head and magnetic impeller, and magnetic impeller middle spindle hole is airtight, form and have only the airtight magnet ring cavity of the downward remaining part of magnet ring mouth; The annular shaft bearing is set up at center, pump housing magnet ring chamber makes it form impeller magnet ring groove and the annular shaft bearing opening two airtight cavitys of remaining part that make progress in the same way; Magnetic impeller and airtight butt joint of axle, axle is fixed in the bearing support at center, pump housing magnet ring chamber together by bearing, and magnetic impeller magnet ring is positioned at pump housing magnet ring groove simultaneously, has just formed the annular gas separate cavities between magnetic impeller magnet ring inwall and the bearing support outer wall.
Described bearing support is provided with thermal-protective coating.
Described bearing support is provided with lubricating cavity.
The beneficial effects of the utility model are: with bearing and axle and media isolated, for magnetic drive pump at severe corrosive, reflectivity, toxicity, can use the scope of bearing and the selection of expansion axle to create rigid condition in the media such as high temperature, thereby prolonged the working life of magnetic drive pump greatly, surmount the life-span of conventional pump, reduce cost the purpose of increasing work efficiency thereby reach.
Description of drawings
Fig. 1, structural representation of the present utility model;
Embodiment
A kind of encapsulating method of magnetic drive pump, pump are by the pump housing, the pump head of outside, and the inner magnetic impeller and the bearing of bearing support and bearing support inside constitute, and magnetic impeller middle spindle hole is airtight, form and have only the airtight magnet ring cavity of the downward remaining part of magnet ring mouth; The magnetic impeller magnet ring magnet ring of packing into is indoor, and magnetic impeller magnet ring inwall has just formed a space with bottom, magnet ring chamber media isolated.
A kind of seal arrangement of magnetic drive pump comprises the pump housing 3, pump head 1 and magnetic impeller 2, and magnetic impeller 2 central shaft holes are airtight, forms to have only the airtight magnet ring cavity 6 of the downward remaining part of magnet ring mouth; The annular shaft bearing is set up at center, pump housing magnet ring chamber makes it form impeller magnet ring chamber 10 and the annular shaft bearing opening two airtight cavitys of remaining part that make progress in the same way; Magnetic impeller 2 and axle 4 airtight butt joints, axle 4 is fixed in the bearing support at center, pump housing magnet ring chamber together by bearing 5, and magnetic impeller magnet ring 8 is positioned at pump housing magnet ring chamber 10 simultaneously, has just formed the annular gas separate cavities between magnetic impeller magnet ring inwall 7 and the bearing support outer wall 9.Also be provided with thermal-protective coating on the described bearing support.Also be provided with lubricating cavity on the described bearing support.
According to one side of the present utility model, provide the encapsulating method that is used for a kind of magnetic drive pump: magnetic impeller middle spindle hole is airtight, form and have only the airtight magnet ring cavity of the downward remaining part of magnet ring mouth; The magnetic impeller magnet ring magnet ring of packing into is indoor, and magnetic impeller magnet ring inwall has just formed a space with bottom, magnet ring chamber media isolated.
The axle sleeve at traditional magnetic impeller magnet ring center is removed, added large space, the axis hole at airtight impeller center allows it become and has only magnet ring mouth (or making progress) downwards, the magnet ring inner chamber body that remaining part is airtight; The annular shaft bearing is set up at center, pump housing magnet ring chamber make it form impeller magnet ring groove and annular shaft bearing, in the same way opening (or downwards) two airtight cavitys of remaining part upwards; The magnetic impeller is carried out airtight the butt joint with axle, axle is fixed in the bearing support at center, pump housing magnet ring chamber together by bearing, magnetic impeller magnet ring enters in the pump housing magnet ring groove simultaneously, has just formed the annular gas separate cavities between magnetic impeller magnet ring (pump housing magnet ring groove) inwall and bearing support (the magnetic impeller magnet ring) outer wall.
Adopt method of the present utility model and device, owing in the separate cavities air is arranged, and separate cavities Open Side Down with regard to one, again according to the flow characteristic of liquid, liquid level goes up, and the air in the separate cavities just can't flow, and runs off, can't enter separate cavities so be transferred medium, with bearing and the axle and media isolated, for magnetic drive pump at severe corrosive, reflectivity, toxicity, can use the method for bearing and the selection of amplification axle to create rigid condition in the media such as high temperature, thereby prolonged the working life of magnetic drive pump greatly, surmount the life-span of conventional pump, reduce cost the purpose of increasing work efficiency thereby reach.
Claims (3)
1. the seal arrangement of a magnetic drive pump comprises the pump housing, pump head and magnetic impeller, it is characterized in that: magnetic impeller middle spindle hole is airtight, and form and have only the airtight magnet ring cavity of the downward remaining part of magnet ring mouth; The annular shaft bearing is set up at center, pump housing magnet ring chamber makes it form impeller magnet ring groove and the annular shaft bearing opening two airtight cavitys of remaining part that make progress in the same way; Magnetic impeller and airtight butt joint of axle, axle is fixed in the bearing support at center, pump housing magnet ring chamber together by bearing, and magnetic impeller magnet ring is positioned at pump housing magnet ring groove simultaneously, has just formed the annular gas separate cavities between magnetic impeller magnet ring inwall and the bearing support outer wall.
2. according to the seal arrangement of the described a kind of magnetic drive pump of claim 1, it is characterized in that: described bearing support is provided with thermal-protective coating.
3. according to the seal arrangement of the described a kind of magnetic drive pump of claim 2, it is characterized in that: described bearing support is provided with lubricating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201794937U CN201810584U (en) | 2010-04-23 | 2010-04-23 | Sealing device of magnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201794937U CN201810584U (en) | 2010-04-23 | 2010-04-23 | Sealing device of magnetic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810584U true CN201810584U (en) | 2011-04-27 |
Family
ID=43893526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201794937U Expired - Fee Related CN201810584U (en) | 2010-04-23 | 2010-04-23 | Sealing device of magnetic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235379A (en) * | 2010-04-23 | 2011-11-09 | 张祥 | Method and device for sealing magnetic pump |
-
2010
- 2010-04-23 CN CN2010201794937U patent/CN201810584U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235379A (en) * | 2010-04-23 | 2011-11-09 | 张祥 | Method and device for sealing magnetic pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20120423 |