CN202991614U - Polyvinyl chloride (PVC) size delivery pump - Google Patents
Polyvinyl chloride (PVC) size delivery pump Download PDFInfo
- Publication number
- CN202991614U CN202991614U CN 201220613655 CN201220613655U CN202991614U CN 202991614 U CN202991614 U CN 202991614U CN 201220613655 CN201220613655 CN 201220613655 CN 201220613655 U CN201220613655 U CN 201220613655U CN 202991614 U CN202991614 U CN 202991614U
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- impeller
- pvc
- pump
- passage
- delivery pump
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Abstract
The utility model provides a polyvinyl chloride (PVC) size delivery pump. The PVC size delivery pump solves the problem that an existing centrifugal pump is easy to block when the existing centrifugal pump transports PVC size. The PVC size delivery pump comprises a center shaft which is connected with a drive motor and an impeller which is sleeved on the center shaft, wherein a pump body and a pump cover are arranged along two sides of the impeller, and the impeller is an open-type impeller. Bending-back vanes are evenly arranged on the impeller, and the number of the impeller is 3-8. An impeller passage is formed by adjacent impeller vanes, and an included angle alpha between an inlet of the impeller passage and a distribution circle of the inlet is 40-50 degrees. A hydraulic model of the impeller is improved, a hydraulic power at the position of the inlet of the impeller passage is changed from an inclined plane to an arc surface which is smooth to transit, an overflowing part of the impeller passage is widened, a circular arc transition surface is repaired and maintained, a large particles are beneficial to passing, and the large particles are prevented from stopping to block in the passage.
Description
Technical field
The utility model relates to the centrifugal pump technical field, particularly a kind of PVC slurry transfer pump.
Background technique
Develop rapidly along with the present PVC Industry of China, production-scale continuous expansion, when the production PVC＝polyvinyl chloride, to carry the PVC slurry in technological process, but dense due to the liquid of carrying, and contain a large amount of PVC pulp particle in medium, size of grain does not wait, and the operating mode of the slurry carried of technological process is unstable again, easily result in blockage when carrying large flow, therefore cause the vibrations of whole pump, existing design all can not be satisfied this requirement, brings very difficult problem therefore for the structural design of centrifugal pump.
The model utility content
This practicality provides a kind of PVC slurry transfer pump, has solved the problem that easily results in blockage when existing centrifugal pump is carried the PVC slurry.
The technical solution of the utility model is achieved in that a kind of PVC slurry transfer pump, comprises the central shaft that is connected in drive motor and is set in impeller on central shaft, is provided with the pump housing and pump cover along impeller both sides, and described impeller is open impeller.
Evenly be provided with backward leaning vane on described impeller, the number of blade is 3 ~ 8.
Described adjacent impeller blade consists of impeller channel, and the angle α between impeller channel import and import distribution circle is 40 ~ 50 °.
The utility model improves the hydraulic model of impeller, made impeller channel intake section waterpower the arc surface of smooth transition into by the inclined-plane, and the impeller channel flow passage is divided widen, arc-shaped transitional surface is repaired, be beneficial to larger particles and pass through, prevent that larger particles is detained formation at runner and blocks.And pump housing hydraulic model is also repaired, prevented from producing when carrying large flow and block, and the pump that brings thus vibration.
Description of drawings
Fig. 1 is the utility model PVC slurry delivery pump structure schematic diagram;
Fig. 2 is the utility model PVC slurry delivery pump blade wheel structural representation;
Fig. 3 is that Fig. 2 is along A-A to sectional drawing.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1 and Figure 2, the present embodiment provides a kind of PVC slurry transfer pump, comprises the central shaft 1 that is connected in drive motor and is set in impeller 4 on central shaft, is provided with the pump housing 2 and pump cover 3 along impeller both sides, and described impeller 4 is open impeller.
The volumetric loss of open impeller is larger, but when pumping contained the suspension liquid of solid particle, blade path was difficult for stopping up.
Wherein, preferably, evenly be provided with backward leaning vane 5 on impeller 4, the number of blade 5 is 4.Use backward leaning vane, less energy loss is arranged in energy conversion process, therefore can obtain higher energy transformation ratio.The quantity of blade is 4, makes impeller channel wider, and large particle is difficult for forming in runner remaining in a standstill.
Preferably, angle α between impeller channel import and import distribution circle is 45 °, and impeller channel intake section waterpower is made into the arc surface of smooth transition by the inclined-plane, and the impeller channel flow passage is divided widen, arc-shaped transitional surface is repaired, and is beneficial to oarse-grained passing through.
Working principle: motor drives pump by central shaft and rotates under certain rotating speed, under wide runner open impeller centrifugal force and atmospheric effect, slurry absorbs from pump housing inlet, through on wide runner open impeller and adjacent blades between wide runner flow out from the outlet port, under the effect of centrifugal force, can convert the speed of PVC slurry to pressure energy, discharge from pump discharge at last.Due to the open impeller that has adopted wide runner, so large range of flow is wide, makes pump operation more steady.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. PVC slurry transfer pump comprises the central shaft that is connected in drive motor and is set in impeller on central shaft, is provided with the pump housing and pump cover along impeller both sides, and it is characterized in that: described impeller is open impeller.
2. PVC slurry transfer pump according to claim 1, it is characterized in that: evenly be provided with backward leaning vane on described impeller, the number of blade is 3 ~ 8.
3. PVC slurry transfer pump according to claim 1 is characterized in that: described adjacent impeller blade consists of impeller channel, and the angle α between impeller channel import and import distribution circle is 40 ~ 50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220613655 CN202991614U (en) | 2012-11-19 | 2012-11-19 | Polyvinyl chloride (PVC) size delivery pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220613655 CN202991614U (en) | 2012-11-19 | 2012-11-19 | Polyvinyl chloride (PVC) size delivery pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991614U true CN202991614U (en) | 2013-06-12 |
Family
ID=48562798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220613655 Expired - Fee Related CN202991614U (en) | 2012-11-19 | 2012-11-19 | Polyvinyl chloride (PVC) size delivery pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991614U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879650A (en) * | 2015-05-21 | 2015-09-02 | 神华集团有限责任公司 | Slurry conveying system |
| CN106368954A (en) * | 2016-11-29 | 2017-02-01 | 南通富莱克流体装备有限公司 | Slurry conveying pump |
-
2012
- 2012-11-19 CN CN 201220613655 patent/CN202991614U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879650A (en) * | 2015-05-21 | 2015-09-02 | 神华集团有限责任公司 | Slurry conveying system |
| CN106368954A (en) * | 2016-11-29 | 2017-02-01 | 南通富莱克流体装备有限公司 | Slurry conveying pump |
| CN106368954B (en) * | 2016-11-29 | 2018-07-06 | 南通富莱克流体装备有限公司 | Slurry delivery pump |
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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 |
Granted publication date: 20130612 Termination date: 20141119 |
|
| EXPY | Termination of patent right or utility model |