CN203223423U - Centrifugal pump with rotation-resisting blades - Google Patents
Centrifugal pump with rotation-resisting blades Download PDFInfo
- Publication number
- CN203223423U CN203223423U CN 201320134299 CN201320134299U CN203223423U CN 203223423 U CN203223423 U CN 203223423U CN 201320134299 CN201320134299 CN 201320134299 CN 201320134299 U CN201320134299 U CN 201320134299U CN 203223423 U CN203223423 U CN 203223423U
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- rotation
- water
- shaft
- 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
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a centrifugal pump with rotation-resisting blades, which belongs to the technical field of water pump engineering. The centrifugal pump comprises a pump body, an impeller, a shaft, a shaft sleeve, a pump cover and a suspension bearing component, wherein the impeller is arranged on the pump body through the shaft, the shaft sleeve, the pump cover and the suspension bearing component. The centrifugal pump is characterized in that the rotation-resisting blades are arranged at the front end of the pump body at the inlet of the impeller; the rotation-resisting blades and the pump body are cast into an integral structure; six rotation-resisting blades are uniformly arranged in a pipeline at the inlet of the impeller at the front end of the pump body like a plum blossom; the rotation-resisting blades are in a streamline form along a water current direction; a sealing ring is arranged between the pump body and the impeller; an impeller chamber is formed by the pump cover and the pump body; the shaft sleeve is arranged on the pump shaft, and passes through the pump cover; a filler is sleeved on the shaft, and is sealed through a filler gland; a water sealing ring is used for lubricating the filler. The centrifugal pump is simple and reasonable in structure, a vortex strip can be blocked effectively by the rotation-resisting blades, the strength and range of the vortex strip are restrained, the pressure pulse and cavitation noise of water current under a small flow are reduced, the water inlet condition of the water pump is improved, and the running safety and stability of the water pump are improved.
Description
Technical field
The utility model relates to the water pump structure pattern, and especially the structure of the impeller inlet of the pump housing front end of centrifugal pump belongs to the water pump field of engineering technology.
Background technique
Centrifugal pump mainly is made up of installations such as the pump housing, impeller, axle, axle sleeve, pump cover, strut bearing parts, and impeller is installed in the pump housing by axle, axle sleeve, pump cover, strut bearing parts.Centrifugal pump is widely used in the national economy every field, has lift height, efficient wide ranges, advantage such as easy to maintenance.But under low flow rate condition, the water inlet condition of water pump does not meet design requirement, and vortex appears in impeller inlet, and extend in the preceding intake pipe of impeller, cause pressure pulsation to increase, cavitation noise strengthens, water pump water inlet worsening condition, the Security and the stability that jeopardize water pump operation.
The model utility content
The purpose of this utility model is the structural feature according to centrifugal pump, at the performance deficiency under the low flow rate condition that exists, provides a kind of centrifugal pump with resistance vane sheet, and resistance vane sheet is streamlined along water (flow) direction, satisfies the axial water inlet condition of centrifugal pump; CFD analyzes and test result all shows, when under low flow rate condition, moving, the whirlpool band appears in impeller inlet, put in pump housing front end, resistance vane sheet can be blocked the whirlpool band effectively, suppresses intensity and the scope of whirlpool band, reduces pressure pulsation and the cavitation noise of current, improve water pump water inlet condition, improve Security and the stability of water pump operation.
The purpose of this utility model is to realize like this, a kind of centrifugal pump with resistance vane sheet, comprise the pump housing, impeller, axle, axle sleeve, pump cover, strut bearing parts, impeller is installed in the pump housing by axle, axle sleeve, pump cover, strut bearing parts, it is characterized in that, pump housing front end at impeller inlet is provided with resistance vane sheet, and resistance vane sheet and the pump housing are cast into an overall structure.
Described resistance vane sheet is 6 pieces, is in the pipeline of impeller inlet that the plum blossom shape is evenly arranged in pump housing front end, and resistance vane sheet is streamlined along water (flow) direction.
Be provided with seal ring between the described pump housing and the impeller.
Be provided with Gland, filler and seal cage between described pump cover and the axle sleeve, filler and seal cage are installed between pump cover and the axle sleeve by Gland.
The utility model is rational in infrastructure simple, according to the structural feature of centrifugal pump, at the pump housing front end of impeller inlet, arranges resistance vane sheet, and resistance vane sheet is streamlined along water (flow) direction, satisfies the axial water inlet condition of centrifugal pump; CFD analyzes and test result all shows, when under low flow rate condition, moving, the whirlpool band appears in impeller inlet, put in pump housing front end, resistance vane sheet can be blocked the whirlpool band effectively, suppresses intensity and the scope of whirlpool band, reduces pressure pulsation and the cavitation noise of current, improve water pump water inlet condition, improve Security and the stability of water pump operation.By the seal ring between the impeller that is installed in the static pump housing and rotation, reduce water body and leaked by high pressure lateral intake low voltage side, compress filler by Gland, reduce water body to the pump external leakage, seal cage is lubricated filler.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A-A sectional drawing among Fig. 1.
Among the figure: 1 pump housing; 2 impeller nuts; 3 lock washers; 4 seal rings; 5 impellers; 6 pump covers; 7 axle sleeves; 8 seal cages; 9 fillers; 10 Glands; 11 strut bearing parts; 12; 13 resistance vane sheets.
Embodiment
As shown in Figure 1 and Figure 2, a kind of centrifugal pump with resistance vane sheet is made up of parts installations such as the pump housing 1, impeller nut 2, lock washer 3, seal ring 4, impeller 5, pump cover 6, axle sleeve 7, seal cage 8, filler 9, Gland 10, strut bearing parts 11, axle 12 and resistance vane sheets 13.Pump housing front end at impeller inlet arranges resistance vane sheet, and resistance vane sheet and the pump housing are cast into an overall structure.Described resistance vane sheet is 6 pieces, is in the pipeline of impeller inlet that the plum blossom shape is evenly arranged in pump housing front end, and resistance vane sheet is streamlined along water (flow) direction.Between the pump housing and impeller 5, seal ring 4 is set.Be provided with Gland, filler and seal cage between pump cover and axle sleeve, filler and seal cage are installed between pump cover and the axle sleeve by Gland.Impeller 5, axle sleeve 7 and lock washer 3 are installed on the pump shaft 12, and fixing by impeller nut 2, pump shaft 12 is bearing on the strut bearing parts 11, and impeller 5 is installed in the blade wheel chamber of the pump housing 1 and pump cover 6 formation.By the seal ring 4 between the impeller 5 that is installed in the static pump housing 1 and rotation, reduce water body and leaked by high pressure lateral intake low voltage side, reduce water body to the pump external leakage by Gland 10 fillers 9, seal cage 8 is lubricated filler 9.
In the utility model when operation,, water flows to impeller 5 after streaming resistance vane sheet 13 from the import of the pump housing 1, and impeller 5 rotates under the drive of pump shaft 12, and the mechanical energy of power engine is converted into kinetic energy and the potential energy of water body, flows out from the outlet of the pump housing 1.When moving under low flow rate condition, the whirlpool band appears in impeller inlet, and resistance vane sheet can be blocked the whirlpool band effectively, the intensity and the scope that suppress the whirlpool band, reduce pressure pulsation and the cavitation noise of current, improve water pump water inlet condition, improve Security and the stability of water pump operation.
Claims (4)
1. centrifugal pump with resistance vane sheet, comprise the pump housing, impeller, axle, axle sleeve, pump cover, strut bearing parts, impeller is installed in the pump housing by axle, axle sleeve, pump cover, strut bearing parts, it is characterized in that, pump housing front end at impeller inlet is provided with resistance vane sheet, and resistance vane sheet and the pump housing are cast into an overall structure.
2. a kind of centrifugal pump with resistance vane sheet according to claim 1 is characterized in that described resistance vane sheet is 6 pieces, is in the pipeline of impeller inlet that the plum blossom shape is evenly arranged in pump housing front end, and resistance vane sheet is streamlined along water (flow) direction.
3. a kind of centrifugal pump with resistance vane sheet according to claim 1 is characterized in that the described pump housing and impeller are provided with seal ring between (5).
4. a kind of centrifugal pump with resistance vane sheet according to claim 1 is characterized in that be provided with Gland, filler and seal cage between described pump cover and the axle sleeve, filler and seal cage are installed between pump cover and the axle sleeve by Gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320134299 CN203223423U (en) | 2013-03-23 | 2013-03-23 | Centrifugal pump with rotation-resisting blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320134299 CN203223423U (en) | 2013-03-23 | 2013-03-23 | Centrifugal pump with rotation-resisting blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223423U true CN203223423U (en) | 2013-10-02 |
Family
ID=49250427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320134299 Expired - Fee Related CN203223423U (en) | 2013-03-23 | 2013-03-23 | Centrifugal pump with rotation-resisting blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203223423U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533807A (en) * | 2014-12-17 | 2015-04-22 | 哈尔滨电气动力装备有限公司 | Auxiliary impeller hydraulic model testing device |
| CN105927579A (en) * | 2016-07-01 | 2016-09-07 | 南京林业大学 | Inner-leakage-free axial force self-balancing centrifugal fluid conveying device |
-
2013
- 2013-03-23 CN CN 201320134299 patent/CN203223423U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533807A (en) * | 2014-12-17 | 2015-04-22 | 哈尔滨电气动力装备有限公司 | Auxiliary impeller hydraulic model testing device |
| CN105927579A (en) * | 2016-07-01 | 2016-09-07 | 南京林业大学 | Inner-leakage-free axial force self-balancing centrifugal fluid conveying device |
| CN105927579B (en) * | 2016-07-01 | 2019-01-04 | 南京林业大学 | A kind of centrifugal fluid transporter of non-internal leakage axial force self-balancing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105673553A (en) | Diagonal flow pump | |
| CN203223423U (en) | Centrifugal pump with rotation-resisting blades | |
| CN207004908U (en) | A kind of inducer of no blade tip clearance leakage | |
| CN202048016U (en) | High-efficient energy-saving vertical-type water pump | |
| CN205714923U (en) | A kind of diagonal pumps | |
| CN203743008U (en) | Novel efficient spiral-flow type slurry pump with impeller arranged in middle | |
| CN201896756U (en) | Dual-suction centrifugal pump | |
| CN201347867Y (en) | Vertical centrifugal pump | |
| CN106996389A (en) | A kind of short distance inducer without blade tip clearance cavitation | |
| CN203308772U (en) | Double-suction pump | |
| CN204738966U (en) | Centrifugal pump | |
| CN208546323U (en) | A kind of sand-proof type injection immersible pump | |
| CN209083654U (en) | A kind of suction inlet is the water inlet segment structure of the centrifugal multistage pump multiple centrifugal pump of fish mouth type | |
| CN209354365U (en) | A kind of vertical multi-stage centrifugal pump | |
| CN203685591U (en) | Automatic floating lubrication type high-lift multi-stage pump | |
| CN203308758U (en) | Pre-chopping sewage draining centrifugal pump | |
| CN103185010B (en) | A kind of pneumatic magnetic pump | |
| CN203223388U (en) | Novel mixed flow pump | |
| CN203114743U (en) | Single-stage single-suction type chemical centrifugal pump | |
| CN201318312Y (en) | Water-filling submersible electric pump | |
| CN201078333Y (en) | Single stage double inlet centrifugal pump | |
| CN205225767U (en) | High -efficient low lift is dirty pump stealthily | |
| CN205036592U (en) | Chemical industry mixed flow pump | |
| CN105626544B (en) | A kind of horizontal multi-stage centrifugal pump | |
| CN204738970U (en) | Vane pump with corrosion resistant wear resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20160323 |