CN201363312Y - Pump cover capable of driving solid particles away for submersible sewage pump - Google Patents
Pump cover capable of driving solid particles away for submersible sewage pump Download PDFInfo
- Publication number
- CN201363312Y CN201363312Y CNU2008201566844U CN200820156684U CN201363312Y CN 201363312 Y CN201363312 Y CN 201363312Y CN U2008201566844 U CNU2008201566844 U CN U2008201566844U CN 200820156684 U CN200820156684 U CN 200820156684U CN 201363312 Y CN201363312 Y CN 201363312Y
- Authority
- CN
- China
- Prior art keywords
- pump
- pump cover
- mechanical seal
- groove
- solid particles
- 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
- 239000002245 particle Substances 0.000 title claims abstract description 17
- 239000007787 solid Substances 0.000 title claims abstract description 13
- 239000010865 sewage Substances 0.000 title abstract description 4
- 238000007599 discharging Methods 0.000 claims description 9
- 239000004576 sand Substances 0.000 claims description 9
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 239000002689 soil Substances 0.000 abstract 1
- 239000008187 granular material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a pump cover capable of driving solid particles away for submersible sewage pump. The pump cover comprises a pump body, a shaft, impellers, a mechanical seal and a pump cover, and is characterized in that two symmetrical grooves are arranged on the end surface of the outer side of the pump cover; the width of the groove is 6mm, and the depth of the groove is 3mm. The utility model has the advantages of being capable of flushing the soil particles into the pump body by utilizing the centrifugal force produced by the rotation of the impellers, ensuring the operation safety of the mechanical seal and prolonging the service life of the mechanical seal.
Description
Technical field
The utility model relates to a kind of pump cover structure that is used for proof submersible sand discharging pump, the particularly a kind of pump cover that can drive solid particle out of that is used for proof submersible sand discharging pump.
Background technique
The rotating ring of mechanical seal and the rubbing surface of stationary ring are that non-ordinary light is sliding, as long as wherein any one rubbing surface breakage all can cause mechanical seal to be lost efficacy.Because the medium that proof submersible sand discharging pump is carried all is a sewage, a large amount of solid particles is contained in the inside, these granules may enter in the mechanical seal chamber from the gap between pump cover and the impeller, when these particles enter between the rotating ring of high speed rotating and the stationary ring, will cause the rubbing surface breakage, mechanical seal was lost efficacy.
Summary of the invention
The purpose of this utility model is that the medium that proof submersible sand discharging pump is carried in the solution prior art all is a sewage, a large amount of solid particles is contained in the inside, these granules may enter in the mechanical seal chamber from the gap between pump cover and the impeller, when these particles enter between the rotating ring of high speed rotating and the stationary ring, will cause the rubbing surface breakage, the problem that mechanical seal was lost efficacy provides a kind of pump cover that can drive solid particle out of that is used for proof submersible sand discharging pump.A kind of proof submersible sand discharging pump that utilizes pump cover to drive solid particle out of of the utility model design comprises the pump housing, axle, impeller, mechanical seal, pump cover, it is characterized in that: the groove that offers two symmetries on the end face of the outside of pump cover.The groove width 6mm of groove, groove depth 3mm.The utility model has the advantages that the water that can utilize in the groove rushes at the pump housing because of the centrifugal force that produced by wheel rotation with solid particle, guarantee the security of operation of mechanical seal, prolonged the working life of mechanical seal.
Description of drawings
Accompanying drawing 1 is a pump cover structural representation of the present utility model.
Accompanying drawing 2 is a structural representation of the present utility model.
Below in conjunction with accompanying drawing and example the utility model is elaborated.
Embodiment
Comprise the pump housing 1, axle 2, impeller 3, mechanical seal 4, pump cover 5 among the figure, it is characterized in that: the groove 6 that on the end face of the outside of pump cover 5, offers two symmetries.The groove width 6mm of groove 6, groove depth 3mm.
During use, when solid particle enters gap between pump cover 5 front ends and impeller 3 rear ends, these particles are along with the current of rotation enter into 6 li of grooves, the centrifugal action that the water that groove is 6 li is subjected to impeller 3 rotation generations outwards flows in the pump housing 1, so solid particle also and then flows in the pump housing 1, and can not enter in mechanical seal 4 chambeies.So just can not cause the damage of mechanical seal 4.
Claims (2)
1, a kind of pump cover that can drive solid particle out of that is used for proof submersible sand discharging pump comprises the pump housing, axle, impeller, mechanical seal, pump cover, it is characterized in that: the groove that offers two symmetries on the end face of the outside of pump cover.
2, by the described a kind of pump cover that can drive solid particle out of that is used for proof submersible sand discharging pump of claim 1, it is characterized in that: the groove width 6mm of groove, groove depth 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201566844U CN201363312Y (en) | 2008-12-05 | 2008-12-05 | Pump cover capable of driving solid particles away for submersible sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201566844U CN201363312Y (en) | 2008-12-05 | 2008-12-05 | Pump cover capable of driving solid particles away for submersible sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363312Y true CN201363312Y (en) | 2009-12-16 |
Family
ID=41473976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201566844U Expired - Fee Related CN201363312Y (en) | 2008-12-05 | 2008-12-05 | Pump cover capable of driving solid particles away for submersible sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201363312Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015039A (en) * | 2015-03-25 | 2016-10-12 | 发那科株式会社 | Blower |
-
2008
- 2008-12-05 CN CNU2008201566844U patent/CN201363312Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015039A (en) * | 2015-03-25 | 2016-10-12 | 发那科株式会社 | Blower |
| US10428840B2 (en) | 2015-03-25 | 2019-10-01 | Fanuc Corporation | Blower provided with structure suppressing damage to shaft seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20111205 |