CN2252260Y - Centrifugal pump ceramic balance dish - Google Patents
Centrifugal pump ceramic balance dish Download PDFInfo
- Publication number
- CN2252260Y CN2252260Y CN 95210057 CN95210057U CN2252260Y CN 2252260 Y CN2252260 Y CN 2252260Y CN 95210057 CN95210057 CN 95210057 CN 95210057 U CN95210057 U CN 95210057U CN 2252260 Y CN2252260 Y CN 2252260Y
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- CN
- China
- Prior art keywords
- balance
- disc
- ceramic wear
- wear
- dish
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- 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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Abstract
The utility model provides a centrifugal pump ceramic balance disc, which comprises a balance movable disc 1, a balance static disc 2 and ceramic wear-resistant rings 3. Compared with the prior art, the utility model is mainly characterized in that ceramic wear-resistant rings 3 are respectively inlaid on the friction surfaces of the movable disc and the static disc 2; the ceramic wear-resistant rings 3 can use one of the methods or the combination of the methods, such as adhesion, welding, interference fit, mechanical pressing, etc. to connect with a metal movable disc 1 or a metal static disc 2. When the static disc contacts the movable disc, the two ceramic wear-resistant rings rub each other. Compared with the various existing metal balance discs, the utility model has the advantages of super wear resistance, super corrosion resistance, good stability of pumping efficiency, long cycle length of pump inspection, large reduction of fitting consumption, etc. The service life of the utility model is longer than that of a spray welding nickel alloy layer balance disc by more than ten times under the bad use conditions.
Description
The utility model belongs to silicate industry high-performance ceramics field, relates to the improved Balance disc on the used centrifugal pumps of industry such as a kind of oil, mining and metallurgy, promptly inlays the centrifugal pump porcelain balance dish of ceramic wear-resisting ring.
Typical centrifugal pump structure as shown in Figure 1
Among the figure: 11, inlet segment 12, stator 13, stage casing 14, water exit end
15, first stage impeller 16, impeller 17, Balance disc 18, tail-hood
19, axle sleeve 20, cooling chamber cap 21, filler 22, Gland
23, O shape circle 24, rolling bearing 25, chopped-off head seal ring
26. seal ring 27, guide vane wheel 28, axle
The used Balance disc of centrifugal pump all adopts metallic material to make at present, and a kind of embodiment is (parts 17 place's enlarged views among Fig. 1) as shown in Figure 2.
Among the figure: the quiet dish of the 171-Balance disc Moving plate 172-Balance disc 173-pump housing
174-stuffing box gland 175-axle
When pumping contains high hardness abrasive particle Korrosionsmedium, for prevent rubbing surface sharply wearing and tearing cause balance and lost efficacy, then usually at rubbing surface surfacing, spraying or plating wear-and corrosion-proof metal, as nickel-base alloy etc.Even so, because abrasion resistance alloy is under the mal-condition of a series of combinations such as abrasive wear, corrosion, its wear resistance, corrosion resistance still are difficult to satisfy the working environment requirement, so the Balance disc rubbing surface still weares and teares very fast, usually cause bearing to burn out, the reliability decrease of pump, the inspection pumping frequency is numerous, brings inconvenience for people's production and life.
The purpose of this utility model provides the Balance disc of a kind of new structure and material, by changing structure and utilizing the high technology structural ceramics, improves the wear resistance and corrosion resistance of porcelain balance dish, adapts to multiple Environmental Conditions.
The utility model is made up of Balance disc Moving plate, the quiet dish of Balance disc and ceramic wear-resisting ring etc., it is characterized in that, has inlayed the ceramic wear-resisting ring on the rubbing surface of Moving plate and quiet dish respectively.The ceramic wear-resisting ring can use one of methods such as bonding, welding, interference fit, mechanical compaction or its combination to connect with metal Moving plate or the quiet dish of metal respectively.Work as pressure surge, Balance disc floats balance automatically and produces when contacting, and is rubbed by two ceramic wear-resisting loop contacts.
Prepare friction pair by structural ceramic material, make Balance disc improve wear-resisting, corrosion resisting property.By precision machining, the autobalance of Balance disc is guaranteed to ceramic wear-resisting ring rubbing surface.
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further.
Accompanying drawing 3 is the elevational cross-sectional view according to a kind of porcelain balance dish embodiment of the present utility model.Among the figure: the quiet dish of 1-Balance disc Moving plate 2-Balance disc
The 3-ceramic wear-resisting ring 4-pump housing
5-stuffing box gland 6-axle
According to Balance disc of the present utility model.Comprise Balance disc Moving plate 1, the quiet dish 2 of Balance disc and ceramic wear-resisting ring 3 etc.Be primarily characterized in that and on the rubbing surface of Moving plate 1 and quiet dish 2, inlayed ring ceramic wear-resisting ring 3 respectively.One of methods such as ceramic wear-resisting ring 3 usefulness are bonding, welding, interference fit, mechanical compaction or its combination connect with metal Moving plate or the quiet dish of metal respectively.Work as pressure surge, Balance disc floats balance automatically and produces when contacting, and is rubbed by two ceramic wear-resisting loop contacts.By precision machining, the autobalance of Balance disc is guaranteed to ceramic wear-resisting ring rubbing surface.
According to the difference of application, the structural type of ceramic wear-resisting ring 3 can be varied, to satisfy different requirements.Structural type as ceramic wear-resisting ring 3 can be that whole annulus, segmentation sector unit are formed annulus; Also can be on quiet, Moving plate metallic matrix, to constitute wear-resisting toroidal surface with cylinder or square mosaic
The modern structure stupalith can be silicon nitride, zirconium oxide, aluminium oxide, silicon carbide etc.Because application of the present utility model characteristics require ceramics toughness height, machining accuracy height, complex process.
The utility model compared with prior art prepares friction pair by structural ceramic material, Because the chemistry of high rigidity, high strength and high-wearing feature that high-performance ceramics is good and excellence Stability increases substantially the service life of balancing frame, thereby has greatly reduced because of flat Weighing apparatus failure of apparatus and burning out a bearing and the generation of the accident of motor has greatly reduced maintenance time Number and accessory consumption have alleviated labour intensity. The pump efficiency good stability. In most evil bad making Under condition, its life-span is more than 10 times of surfacing nickel alloy layer balancing frame, economic effect Benefit and social benefit are very high.
Claims (4)
1, a kind of centrifugal pump porcelain balance dish, comprise the quiet dish 1 of Balance disc, Balance disc Moving plate 2 and ceramic wear-resisting ring 3, it is characterized in that: the quiet dish 1 of Balance disc has been inlayed ceramic wear-resisting ring 3 respectively with the rubbing surface of Balance disc Moving plate 2, when quiet dish 1 contacts under pressure surge with Moving plate 2, by two ceramic wear-resisting ring phase mutual friction.
2, centrifugal pump porcelain balance dish as claimed in claim 1, it is characterized in that: ceramic wear-resisting ring 3 can connect with quiet dish 1 of metal or metal Moving plate 2 respectively with one of methods such as bonding, welding, interference fit, mechanical compaction or its combination.
3, centrifugal pump porcelain balance dish as claimed in claim 1 is characterized in that: the structural type of ceramic wear-resisting ring 3 can be that whole annulus, segmentation sector unit are formed annulus; Also can be to be embedded in cylinder or rectangular block to constitute wear-resisting toroidal surface on quiet, the Moving plate metallic matrix.
4, centrifugal pump as claimed in claim 1 is drawn the porcelain Balance disc, it is characterized in that: structural ceramic material can be zirconium oxide, aluminium oxide, silicon nitride and silicon carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95210057 CN2252260Y (en) | 1995-05-09 | 1995-05-09 | Centrifugal pump ceramic balance dish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95210057 CN2252260Y (en) | 1995-05-09 | 1995-05-09 | Centrifugal pump ceramic balance dish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2252260Y true CN2252260Y (en) | 1997-04-16 |
Family
ID=33860888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95210057 Expired - Fee Related CN2252260Y (en) | 1995-05-09 | 1995-05-09 | Centrifugal pump ceramic balance dish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2252260Y (en) |
-
1995
- 1995-05-09 CN CN 95210057 patent/CN2252260Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |