CN207064328U - A kind of submersible sewage pump mechanical seal chamber bonnet for having sand discharge function - Google Patents
A kind of submersible sewage pump mechanical seal chamber bonnet for having sand discharge function Download PDFInfo
- Publication number
- CN207064328U CN207064328U CN201720671923.9U CN201720671923U CN207064328U CN 207064328 U CN207064328 U CN 207064328U CN 201720671923 U CN201720671923 U CN 201720671923U CN 207064328 U CN207064328 U CN 207064328U
- Authority
- CN
- China
- Prior art keywords
- sand discharge
- mechanical seal
- spiral grooves
- bonnet
- submersible sewage
- 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.)
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- 239000004576 sand Substances 0.000 title claims abstract description 27
- 239000010865 sewage Substances 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000005086 pumping Methods 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of bonnet for the submersible sewage pump mechanical seal chamber for having a sand discharge function, bonnet including submersible sewage pump mechanical seal chamber and it is arranged on bonnet madial wall edge and is separated by 180 degree arrangement, consistent with water pump vane direction of rotation two sand discharge spiral grooves, sand discharge spiral grooves is shaped as Archimedes spiral.The axial height of sand discharge spiral grooves is the 0.7~0.9 of mechanical seal height, and a diameter of mechanical sealing static ring external diameter of starting point of sand discharge spiral grooves adds 20~30mm.Archimedes spiral has good characteristic; the rotation silt be advantageous to using the sand discharge spiral grooves of Archimedes spiral shape in water pump moves to pump chamber along Archimedes spiral groove; it is transported to outside water pump; avoid the friction pair that the silt in wastewater media enters mechanical seal; protect mechanical seal so that the reliability of submersible sewage pump motor safety and pumping system gets a promotion.
Description
Technical field
The utility model is related to a kind of bonnet of submersible sewage pump, specifically it is a kind of have sand discharge function submersible sewage pump machinery it is close
Seal chamber bonnet.
Background technology
The medium of pumping of submersible sewage pump is mostly sewage, and comprising a certain amount of silt, the silt in sewage can be with the machine in pump chamber
Tool is in sealing contact and enters the friction pair of mechanical seal, causes machine's sealing, causes leakage, and then motor entering water burns,
There is no sand discharge apparatus in some submersible sewage pump pump chambers at present, sand launder, nothing are got rid of using sand-throwing ring or single-screw in some submersible sewage pump pump chambers
Method fundamentally solves the problems, such as mechanical seal by sand erosion, have impact on submersible sewage pump motor safety and pumping system is reliable
Property.
Utility model content
The purpose of this utility model, which is to provide, provides a kind of submersible sewage pump simple in construction, high efficient and reliable, having sand discharge function
Mechanical seal chamber bonnet.
The utility model adopts the following technical scheme that：
A kind of submersible sewage pump mechanical seal chamber bonnet for having sand discharge function, including the bonnet of submersible sewage pump mechanical seal chamber and set
Put and be separated by 180 degree arrangement, consistent with water pump vane direction of rotation two sand discharge spiral grooves, sand discharge on bonnet madial wall edge
Spiral grooves are shaped as Archimedes spiral.
Preferred embodiment is that the axial height of sand discharge spiral grooves is the 0.7~0.9 of mechanical seal height, sand discharge
The a diameter of mechanical sealing static ring external diameter of starting point of spiral grooves adds 20~30mm.
Archimedes spiral has good hydromechanics characteristic, and with the rotation of impeller, silt in sewage is along A Ji
Mead spiral shape sand discharge spiral grooves motion, into pump chamber after be transported to outside water pump, avoid in wastewater media
Silt enters the friction pair of mechanical seal, protects mechanical seal so that the reliability of submersible sewage pump motor safety and pumping system
Get a promotion.
Brief description of the drawings：
Accompanying drawing 1 is the utility model application schematic diagram；
Accompanying drawing 2 is the plane projection schematic diagram of the bonnet sand discharge spiral grooves of submersible sewage pump mechanical seal chamber；
In figure, 1 is pump shaft, and 2 be mechanical seal, and 3 be spiral grooves, and 4 be pump postoperculum, and 5 be the pump housing, and 6 be impeller；
As illustrated, 1 is pump shaft, 2 be mechanical seal, and it is spiral grooves to have mechanical seal 2,3 on pump shaft 1, after 4 are pump
Lid, the inner side that two spiral grooves 3 are arranged on pump postoperculum 4 are faced the wall and meditated on edge, are separated by 180 degree arrangement, with water pump vane direction of rotation
Unanimously, sand discharge spiral grooves are shaped as Archimedes spiral, and spiral grooves 3 and pump postoperculum 4 be that the mode of casting is integrally formed
, pump postoperculum 4 and mechanical seal structure 2 form annular seal space, and during water pump operation, the silt in annular seal space revolves along spiral grooves 3
Turn, progress into the runner of water pump, discharge water pump.
In preferable scheme, the axial heights of Archimedes spiral spiral grooves 3 for mechanical seal height 0.7~
0.9.The a diameter of mechanical sealing static ring external diameter of starting point of Archimedes spiral adds 20~30mm.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (2)
1. a kind of submersible sewage pump mechanical seal chamber bonnet for having sand discharge function, include the bonnet of submersible sewage pump mechanical seal chamber, its feature
It is also to include setting being separated by 180 degree arrangement, consistent with water pump vane direction of rotation two sand discharges on the bonnet madial wall edge
Spiral grooves, sand discharge spiral grooves are shaped as Archimedes spiral.
2. a kind of bonnet of submersible sewage pump mechanical seal chamber for having a sand discharge function according to claim 1, it is characterized in that, it is described
The axial height of sand discharge spiral grooves is the 0.7~0.9 of mechanical seal height, a diameter of machine of starting point of the sand discharge spiral grooves
Tool stationary seal ring external diameter adds 20~30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720671923.9U CN207064328U (en) | 2017-05-31 | 2017-05-31 | A kind of submersible sewage pump mechanical seal chamber bonnet for having sand discharge function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720671923.9U CN207064328U (en) | 2017-05-31 | 2017-05-31 | A kind of submersible sewage pump mechanical seal chamber bonnet for having sand discharge function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207064328U true CN207064328U (en) | 2018-03-02 |
Family
ID=61508452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720671923.9U Active CN207064328U (en) | 2017-05-31 | 2017-05-31 | A kind of submersible sewage pump mechanical seal chamber bonnet for having sand discharge function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207064328U (en) |
-
2017
- 2017-05-31 CN CN201720671923.9U patent/CN207064328U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213000 Qingjiang Road, Xinbei District, Changzhou, Jiangsu 28 Co-patentee after: SUPUMPS PUMP INDUSTRY (SHANGHAI) CO.,LTD. Patentee after: SUPUMPS ENVIRONMENT TECHNOLOGY (CHANGZHOU) Co.,Ltd. Address before: 213000 Qingjiang Road, Xinbei District, Changzhou, Jiangsu 28 Co-patentee before: SUPUMPS PUMP INDUSTRY (SHANGHAI) CO.,LTD. Patentee before: SUPUMPS PUMPS CHANGZHOU Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 213000, No. 399 Jingde West Road, Wujin District, Changzhou City, Jiangsu Province Patentee after: SUPUMPS ENVIRONMENT TECHNOLOGY (CHANGZHOU) Co.,Ltd. Country or region after: China Patentee after: SUPUMPS PUMP INDUSTRY (SHANGHAI) CO.,LTD. Address before: 213000 Qingjiang Road, Xinbei District, Changzhou, Jiangsu 28 Patentee before: SUPUMPS ENVIRONMENT TECHNOLOGY (CHANGZHOU) Co.,Ltd. Country or region before: China Patentee before: SUPUMPS PUMP INDUSTRY (SHANGHAI) CO.,LTD. |