CN203223423U - Centrifugal pump with rotation-resisting blades - Google Patents

Centrifugal pump with rotation-resisting blades Download PDF

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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
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CN
China
Prior art keywords
pump
impeller
water
rotation
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
Application number
CN 201320134299
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Chinese (zh)
Inventor
朱红耕
张仁田
王丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yangzhou University
Original Assignee
Yangzhou University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yangzhou University filed Critical Yangzhou University
Priority to CN 201320134299 priority Critical patent/CN203223423U/en
Application granted granted Critical
Publication of CN203223423U publication Critical patent/CN203223423U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

A kind of centrifugal pump with resistance vane sheet
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.
CN 201320134299 2013-03-23 2013-03-23 Centrifugal pump with rotation-resisting blades Expired - Fee Related CN203223423U (en)

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

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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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131002

Termination date: 20160323

CF01 Termination of patent right due to non-payment of annual fee