CN207554351U - Wear-resisting centrifugal multistage pump multiple centrifugal pump - Google Patents
Wear-resisting centrifugal multistage pump multiple centrifugal pump Download PDFInfo
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- CN207554351U CN207554351U CN201721696289.0U CN201721696289U CN207554351U CN 207554351 U CN207554351 U CN 207554351U CN 201721696289 U CN201721696289 U CN 201721696289U CN 207554351 U CN207554351 U CN 207554351U
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Abstract
The utility model is related to centrifuge pump technical field, more particularly to a kind of wear-resisting centrifugal multistage pump multiple centrifugal pump, including shell, rotor part, several guide vanes, guide blade sleeve is on rotor part, rotor part and several guide vanes are respectively provided with inside the shell, shell is by water inlet pump cover, inlet segment, several stage casings, water exit end and water outlet pump cover are fixed to each other are cascaded successively, suction inlet is provided on inlet segment, outlet is provided on water exit end, suction inlet and outlet are connected with shell inner cavity, several guide vanes are arranged in shell inner cavity, sealing ring is additionally provided between guide vane and stage casing, sealing ring is made of stainless steel material, the inner ring heap of sealing ring is welded with nickel base alloy layer.The wear-resisting centrifugal multistage pump multiple centrifugal pump of the utility model by the sealing ring inner ring build-up wear-resistant layer between guide vane and stage casing, can avoid guide wheel from rotating the abrasion to sealing ring inner ring, ensure the work quality and service life of wear-resisting centrifugal multistage pump multiple centrifugal pump.
Description
Technical field
The utility model is related to centrifuge pump technical field more particularly to a kind of wear-resisting centrifugal multistage pump multiple centrifugal pump.
Background technology
Wear-resisting centrifugal multistage pump multiple centrifugal pump is that more than two centrifugal pumps pump with said function gathers together, fluid channel
In structure, show that the medium pressure relief opening of the first order is communicated with the import of the second level, the medium pressure relief opening of the second level and the third level
Import communicate, the mechanism so connected forms wear-resisting centrifugal multistage pump multiple centrifugal pump.
It is set in the middle part of the shell of wear-resisting centrifugal multistage pump multiple centrifugal pump in multistage stage casing, impeller is arranged in multistage stage casing, each stage casing
A corresponding impeller, impeller set is in shaft, leak in order to prevent, ensures the lift of water, between impeller and corresponding stage casing
Sealing ring is provided with, is clearance fit between sealing ring inner ring and impeller, is interference fit between the stage casing of sealing ring outer ring, still
Due to the high speed rotation of impeller, easily sealing ring inner ring is worn, gap between sealing ring inner ring and impeller is caused to become larger, is caused
Leak influences the lift of water.
Utility model content
The technical problems to be solved in the utility model is：In order to solve in the prior art between sealing ring inner ring and impeller between
Gap becomes larger, and causes leak, the technical issues of influencing the lift of water, and the utility model provides a kind of wear-resisting centrifugal multistage pump multiple centrifugal pump.
Technical solution is used by the utility model solves its technical problem：A kind of wear-resisting centrifugal multistage pump multiple centrifugal pump, including outer
Shell, rotor part, several guide vanes, for the guide blade sleeve on rotor part, rotor part and several guide vanes are arranged at shell
Interior, the shell is fixed to each other is cascaded successively by water inlet pump cover, inlet segment, several stage casings, water exit end and water outlet pump cover,
Suction inlet is provided on inlet segment, outlet is provided on water exit end, suction inlet and outlet are connected with shell inner cavity, if
Dry guide vane is arranged in shell inner cavity, and guide vane and stage casing correspond, and sealing ring is additionally provided between the guide vane and stage casing,
The sealing ring outer ring and stage casing interference fit, clearance fit between sealing ring inner ring and guide vane, sealing ring use stainless steel
Material makes, and the inner ring heap of sealing ring is welded with nickel base alloy layer.The wear-resisting centrifugal multistage pump multiple centrifugal pump of the utility model, in order to improve sealing ring
Wearability sprays entire inner ring in sealing ring inner ring built-up welding processing, forms nickel base alloy layer.
Preferably, the thickness of the nickel base alloy layer is 2-2.5mm.The nickel base alloy layer cannot be too thick, too thick meeting shadow
The rotation of pilot's wheel, based alloy layer can not be too thin, and too thin nickel base alloy layer, which easily comes off, or gap is excessive influences raising for water
Journey.
The beneficial effects of the utility model are the wear-resisting centrifugal multistage pump multiple centrifugal pumps of the utility model, by guide vane and stage casing it
Between sealing ring inner ring build-up wear-resistant layer, guide wheel can be avoided to rotate abrasion to sealing ring inner ring, ensure wear-resisting multistage centrifugal
The work quality and service life of pump.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of the wear-resisting centrifugal multistage pump multiple centrifugal pump of the utility model.
Fig. 2 is the structure diagram of the sealing ring of the wear-resisting centrifugal multistage pump multiple centrifugal pump of the utility model.
In figure：1st, rotor part, 2, guide vane, 3, water inlet pump cover, 4, inlet segment, 41, suction inlet, 5, stage casing, 6, water exit end,
61st, outlet, 7, water outlet pump cover, 8, sealing ring, 81, nickel base alloy layer.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows the composition related with the utility model.
As illustrated in fig. 1 and 2, it is the utility model optimum embodiment, a kind of wear-resisting centrifugal multistage pump multiple centrifugal pump, including shell, rotor
Component 1, several guide vanes 2, guide vane 2 are sleeved on rotor part 1, and rotor part 1 and several guide vanes 2 are respectively provided with inside the shell, outside
Shell is fixed to each other is cascaded successively by water inlet pump cover 3, inlet segment 4, several stage casings 5, water exit end 6 and water outlet pump cover 7, is intake
Be provided with suction inlet 41 in section 4, be provided with outlet 61 on water exit end 6, suction inlet 41 and outlet 61 with shell inner cavity phase
Connection, several guide vanes 2 are arranged in shell inner cavity, and guide vane 2 and stage casing 5 correspond, and are also set up between guide vane 2 and stage casing 5
There is sealing ring 8,8 outer ring of sealing ring and stage casing 5 are interference fitted, and clearance fit between 8 inner ring of sealing ring and guide vane 2, sealing ring 8 is adopted
It is made of stainless steel material, the inner ring heap of sealing ring 8 is welded with nickel base alloy layer 81.The thickness of nickel base alloy layer 81 is 2-2.5mm.
The wear-resisting centrifugal multistage pump multiple centrifugal pump is applied on the water pump of the Changjiang river, and up to tens meters, the quantity in the stage casing 5 in figure is only to show
Meaning.Not only wear-resisting property is very good for nickel-base alloy, and anti-oxidant, corrosion-resistant, welding performance might as well.Therefore, it is coated on by built-up welding
The inner ring of sealing ring 8 easily combines, and easily covers.
Using the above-mentioned desirable embodiment according to the utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
The content being not limited to novel technical scope on specification, it is necessary to which its technology is determined according to right
Property range.
Claims (2)
1. a kind of wear-resisting centrifugal multistage pump multiple centrifugal pump, including shell, rotor part (1), several guide vanes (2), the guide vane (2), which is sleeved on, to be turned
On subassembly (1), rotor part (1) and several guide vanes (2) are respectively provided with inside the shell, it is characterised in that：The shell is by intaking
Pump cover (3), inlet segment (4), several stage casings (5), water exit end (6) and water outlet pump cover (7) are fixed to each other are cascaded successively, into
Suction inlet (41) is provided in water section (4), outlet (61), suction inlet (41) and outlet (61) are provided on water exit end (6)
It is connected with shell inner cavity, several guide vanes (2) are arranged in shell inner cavity, and guide vane (2) and stage casing (5) correspond, institute
It states and sealing ring (8) is additionally provided between guide vane (2) and stage casing (5), sealing ring (8) outer ring and stage casing (5) interference fit are close
Clearance fit between seal ring (8) inner ring and guide vane (2), sealing ring (8) are made of stainless steel material, the inner ring of sealing ring (8)
Heap is welded with nickel base alloy layer (81).
2. wear-resisting centrifugal multistage pump multiple centrifugal pump as described in claim 1, it is characterised in that：The thickness of the nickel base alloy layer (81) is 2-
2.5mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696289.0U CN207554351U (en) | 2017-12-08 | 2017-12-08 | Wear-resisting centrifugal multistage pump multiple centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696289.0U CN207554351U (en) | 2017-12-08 | 2017-12-08 | Wear-resisting centrifugal multistage pump multiple centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554351U true CN207554351U (en) | 2018-06-29 |
Family
ID=62665337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721696289.0U Active CN207554351U (en) | 2017-12-08 | 2017-12-08 | Wear-resisting centrifugal multistage pump multiple centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554351U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022166204A1 (en) * | 2021-02-04 | 2022-08-11 | 钱江集团温岭正峰动力有限公司 | Centrifugal pump |
-
2017
- 2017-12-08 CN CN201721696289.0U patent/CN207554351U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022166204A1 (en) * | 2021-02-04 | 2022-08-11 | 钱江集团温岭正峰动力有限公司 | Centrifugal pump |
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