CN211778036U - Middle open type centrifugal pump - Google Patents
Middle open type centrifugal pump Download PDFInfo
- Publication number
- CN211778036U CN211778036U CN201921580202.2U CN201921580202U CN211778036U CN 211778036 U CN211778036 U CN 211778036U CN 201921580202 U CN201921580202 U CN 201921580202U CN 211778036 U CN211778036 U CN 211778036U
- Authority
- CN
- China
- Prior art keywords
- centrifugal pump
- bearing
- transmission shaft
- shaft
- cylindrical roller
- 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.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a middle-open centrifugal pump, the transmission shaft bearing of the centrifugal pump adopts a structure of matching a rolling bearing and a cylindrical roller bearing, a deep groove ball bearing is used along the driving end bearing of the transmission shaft, and a driven end bearing of a rotor is changed into the cylindrical roller bearing; shaft end water retaining rings of the driving end and the driven end of the transmission shaft of the centrifugal pump are sealed by adopting frameworks. The utility model discloses effectively avoided the centrifugal pump shaft to bear the sewage pollution problem, promoted the operating mode adaptability of turbid ring centrifugal pump transmission shaft, made the life-span of transmission shaft improve more than 50%, correspondingly prolonged the life cycle of centrifugal pump, practiced thrift spare part cost of maintenance.
Description
Technical Field
The utility model belongs to steelmaking water pump mechanical equipment field especially relates to a well open centrifugal pump.
Background
The converter turbid ring pump of the four-division plant of the steel-making main plant is a horizontal split centrifugal pump, bearings at two ends of a pump shaft are deep groove ball bearings, packing is filled in a packing box, a butterfly-shaped sealing water retaining ring is arranged between the packing box and the bearings, and the centrifugal pump is connected with a motor through an elastic pin coupling.
The open centrifugal pump in the turbid ring of the converter is used as a water supply device for wet dust removal of the converter, and is important equipment of a turbid ring system of the converter. Due to the large-scale development of metallurgical equipment in China, the recycling of turbid circulating water and the like, the working environment of the open centrifugal pump system in the field turbid ring is severe. According to the practical situation, the main failure reasons of the open centrifugal pump in the turbid ring are as follows: (1) the turbidity of turbid circulating water is high, the impurity particles are more, the centrifugal pump is worn and leaked in a sealing way, and sewage enters the bearing box to cause bearing lubrication failure. (2) The impeller is unbalanced in scale, the bearing generates radial run-out impact, the installation error of the centrifugal pump generates axial force, and the support frame is axially worn. These causes cause frequent damage to the bearings of the turbid ring centrifugal pump. How to prolong the service life of the turbid ring centrifugal pump is the key for stable operation of the turbid ring system.
Disclosure of Invention
The utility model discloses aim at avoiding the centrifugal pump shaft to bear sewage pollution, improve bearing shock resistance, the axial force that produces after the release bearing installation prolongs the life of centrifugal pump.
Therefore, the utility model discloses the technical solution who takes does:
a kind of middle-open centrifugal pump, the said centrifugal pump drive shaft bearing adopts the rolling bearing and cylindrical roller bearing to match the structure, drive shaft driving end bearing follows the deep groove ball bearing, drive shaft driven end bearing changes into the inner race and does not have cylindrical roller bearing of flange; shaft end water retaining rings of the driving end and the driven end of the transmission shaft of the centrifugal pump are sealed by adopting frameworks.
The utility model has the advantages that:
the utility model discloses effectively avoided the centrifugal pump shaft to bear the sewage pollution problem, eliminated the bearing axial force that processing and installation error produced, promoted the operating mode adaptability of turbid ring centrifugal pump rotor, made the life-span of rotor improve more than 50%, the corresponding life cycle that has prolonged the centrifugal pump has practiced thrift spare part cost of maintenance.
Drawings
Fig. 1 is a schematic sectional view of a centrifugal pump of the split type.
In the figure: the deep groove ball bearing comprises a deep groove ball bearing 1, a driving end framework seal 2, a transmission shaft 3, a driven end framework seal 4 and a cylindrical roller bearing 5.
Detailed Description
As can be seen from figure 1, the utility model discloses well open centrifugal pump, firstly adopt antifriction bearing and cylindrical roller bearing collocation structure with the bearing of centrifugal pump transmission shaft 3, transmission shaft drive end bearing follows to use deep groove ball bearing 1 promptly, transmission shaft 3 changes into inner circle non-flange cylindrical roller bearing 5 by the driven end bearing, thereby make the passive end bearing box of centrifugal pump can axial displacement be floating, the floating range of centrifugal pump span has been enlarged, do not receive pump body span's restriction in the 3 unit mount processes of messenger's transmission shaft, and the axial force between the bearing has been released. Meanwhile, shaft end water retaining rings of the driving end and the driven end of the transmission shaft of the centrifugal pump are respectively changed into a driving end framework seal 2 and a driven end framework seal 4 from an original butterfly rubber ring. When the inner ring of the water retaining ring is worn, the spring framework of the framework seal can be continuously tightened, the service life of the water retaining ring is prolonged, and the condition that the bearing lubrication fails because turbid circulating water leaked from the stuffing box enters the bearing box is effectively prevented.
The utility model discloses can make turbid ring centrifugal pump bearing box span adjust by a wide margin at equipment span 5mm within range, can adapt to the change of centrifugal pump case axial span in making the transmission shaft subassembly installation. In the actual operation process, the driven end bearing is changed from the deep groove ball bearing 1 to the cylindrical roller bearing 5, so that the axial force generated in the installation process of the transmission shaft 3 can be released, and the service life of the centrifugal pump bearing is prolonged. The improvement of axle head water retaining ring even under the sealed condition of damaging of packing, owing to continuously tightening up of sealed inner spring skeleton, make sealed all the time with the shaft diameter closely laminate, prevent that sewage from getting into bearing rotating part, carried out effectual protection to equipment.
Claims (1)
1. A middle-open centrifugal pump is characterized in that a transmission shaft bearing of the centrifugal pump adopts a structure of matching a rolling bearing with a cylindrical roller bearing, a driving end bearing of a transmission shaft adopts a deep groove ball bearing, and a driven end bearing of the transmission shaft is changed into the cylindrical roller bearing without a flange at the inner ring; shaft end water retaining rings of the driving end and the driven end of the transmission shaft of the centrifugal pump are sealed by adopting frameworks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921580202.2U CN211778036U (en) | 2019-09-23 | 2019-09-23 | Middle open type centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921580202.2U CN211778036U (en) | 2019-09-23 | 2019-09-23 | Middle open type centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211778036U true CN211778036U (en) | 2020-10-27 |
Family
ID=72934148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921580202.2U Active CN211778036U (en) | 2019-09-23 | 2019-09-23 | Middle open type centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211778036U (en) |
-
2019
- 2019-09-23 CN CN201921580202.2U patent/CN211778036U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102606485B (en) | Startup water feed pump for nuclear power station | |
| CN101832393B (en) | Vertical shaft centrifugal seal system | |
| CN108087557A (en) | A kind of sealed coalcutter internal spraying oil isolated from water rotary sealing system of multi-stage mechanical | |
| CN211778036U (en) | Middle open type centrifugal pump | |
| CN211647972U (en) | Rotary joint for horizontal directional drilling machine and horizontal directional drilling machine | |
| CN206503721U (en) | A kind of self-balanced multiple-stage Radial pump | |
| CN103075369A (en) | Combined vertical-type submerged long-shaft pump | |
| CN203335851U (en) | Main shaft supporting and sealing structure of rinsing machine | |
| CN209539845U (en) | A kind of driving device for drying drum | |
| CN205151035U (en) | Can judge that belt of bearing situation changes to roller at wire coil shaft | |
| CN201599202U (en) | High temperature and high pressure process pump | |
| CN104295882A (en) | Waste lubricating grease collecting structure of wind driven generator spindle bearing | |
| CN102873664A (en) | Inner-bore self-lubricating bearing dismantling device | |
| CN202483895U (en) | Multiple-group magnetic drive pump | |
| CN214577737U (en) | Novel sectional assembly type shaft tubular pump device | |
| CN202321894U (en) | Detachable type traction machine | |
| CN213478667U (en) | Horizontal centrifugal pump with wear-resisting pump cover | |
| CN207437263U (en) | A kind of radial direction self-compensation type sealing | |
| CN207527041U (en) | A kind of sealed coalcutter internal spraying oil isolated from water rotary sealing system of multi-stage mechanical | |
| CN203822682U (en) | CPR 1000 MW centrifugal upper charging pump non-driving end bearing structure | |
| CN201372882Y (en) | Novel hydraulic turbine shaft seal assembly adopting 'non-contact seal plus rotary pump unit' | |
| CN210977899U (en) | Pipeline process pump | |
| CN219702282U (en) | Separating device special for horizontal screw machine | |
| CN221299562U (en) | Centrifugal pump bearing component skeleton oil seal fixing structure | |
| CN205148215U (en) | Frock is dismantled to non - drive end bearing of double bracing pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |