CN210484107U - Long shaft deep well fire pump set - Google Patents
Long shaft deep well fire pump set Download PDFInfo
- Publication number
- CN210484107U CN210484107U CN201921573420.3U CN201921573420U CN210484107U CN 210484107 U CN210484107 U CN 210484107U CN 201921573420 U CN201921573420 U CN 201921573420U CN 210484107 U CN210484107 U CN 210484107U
- Authority
- CN
- China
- Prior art keywords
- pump
- shaft
- motor
- thrust bearing
- deep well
- 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
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a major axis deep well fire pump package belongs to liquid pump technical field, motor, pump case, lifting pipe and pump body work portion including top-down setting, pump body work portion includes the blower inlet casing of multistage series connection, be equipped with the impeller in the blower inlet casing, the output shaft and the coaxial fixed of transmission pump shaft of motor, transmission pump shaft top-down runs through pump case, lifting pipe and blower inlet casing, the impeller is fixed in on the transmission pump shaft, the lower extreme of transmission pump shaft is equipped with thrust mechanism. The utility model discloses a set up thrust mechanism bottom the pump shaft, can prevent effectively that the transmission pump shaft from scurrying on the impeller of operation in-process and leading to impeller or blower inlet housing rapid wear and tear or wearing and tearing and motor load increase and burn out occurence of failure such as motor, utilize the utility model discloses can improve the pump under high load and the off-state to axial force bearing capacity, improve the life of major axis deep well pump shaft effectively.
Description
Technical Field
The utility model belongs to the technical field of the liquid pump, especially, relate to a major axis deep well fire pump package.
Background
The long shaft deep well pump is a vertical single-suction multistage centrifugal pump, its impeller is mounted in the well below the dynamic water level, the power device is placed on the well, and can be used for driving impeller and making it rotate in the guide shell by means of driving long shaft, and the water flow can be upwards lifted to ground surface along the flow channel between the guide shell and impeller, and can be outputted from water outlet of pump shell.
A thrust mechanism is not arranged at the bottom of a transmission pump shaft of the existing long-shaft deep-well pump fire pump set, the defects that a pump impeller and an impeller shaft are easy to move upwards or fall down exist, and the pump set is easy to cause impeller damage and motor overcurrent damage during operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a major axis deep well fire pump package aims at solving among the above-mentioned prior art transmission pump shaft bottom and does not set up thrust mechanism, has pump impeller and impeller shaft to scurry or drop easily, leads to the technical problem that impeller damage and motor overcurrent damaged.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
the utility model provides a major axis deep well fire pump package, includes motor, pump case, lifting pipe and pump body work portion that top-down set up, pump body work portion includes the blower inlet casing of multistage series connection, be equipped with the impeller in the blower inlet casing, the output shaft of motor and transmission pump shaft are coaxial fixed, transmission pump shaft top-down runs through pump case, lifting pipe and blower inlet casing, the impeller is fixed in on the transmission pump shaft, the lower extreme of transmission pump shaft is equipped with thrust mechanism.
Preferably, the thrust mechanism comprises a bearing chamber and a thrust bearing assembly, and the bearing chamber is sleeved on the transmission pump shaft and is connected with the lower end of the lowermost guide shell; the thrust bearing assembly is arranged in the bearing chamber and is arranged at the lower end of the transmission pump shaft.
Preferably, the thrust bearing assembly comprises an upper thrust bearing, a lower thrust bearing and a wear pad, the wear pad is arranged between the upper thrust bearing and the lower thrust bearing, and inner holes of the upper thrust bearing and the lower thrust bearing are in threaded fit with the transmission pump shaft.
Preferably, the upper end face and the lower end face of the wear-resistant pad are provided with radial water passing grooves.
Preferably, a motor bracket is arranged between the motor and the pump shell.
Preferably, a sealing chamber matched with the transmission pump shaft is arranged at the junction of the pump shell and the motor support.
Preferably, the output shaft of the motor is connected with the transmission pump shaft through a coupling.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: compared with the prior art, the utility model discloses a set up thrust mechanism bottom the pump shaft, can prevent effectively that the transmission pump shaft from scurrying on the impeller of operation in-process, bumping or wearing and tearing and leading to impeller or blower inlet rapid wear and tear of blower inlet, motor load increase and burn accident such as motor and take place, utilize the utility model discloses can improve the pump under high load and the off-state to axial force bearing capacity, improve the life of major axis deep well pump shaft effectively.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is provided by an embodiment of the present invention;
in the figure: the method comprises the following steps of 1-motor, 2-motor bracket, 3-pump shell, 4-sealing chamber, 5-water raising pipe, 6-guide shell, 7-impeller, 8-transmission pump shaft, 9-bearing chamber, 10-upper friction pair end face, 11-wear pad, 12-lower friction pair end face, 13-upper thrust bearing and 14-lower thrust bearing.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the long shaft deep well fire pump set provided by the present invention will now be described. The long-shaft deep well fire pump set comprises a motor 1, a pump case 3, a water raising pipe 5 and a pump body working part, wherein the motor 1, the pump case 3, the water raising pipe 5 and the pump body working part are arranged from top to bottom, the pump body working part comprises a guide shell 6 which is connected in series in a multistage manner, an impeller 7 is arranged in the guide shell 6, an output shaft of the motor 1 is coaxially fixed with a transmission pump shaft 8, the transmission pump shaft 8 penetrates through the pump case 3, the water raising pipe 5 and the guide shell 6 from top to bottom, the impeller 7 is fixed on the transmission. The thrust mechanism comprises a bearing chamber 9 and a thrust bearing assembly, wherein the bearing chamber 9 is sleeved on the transmission pump shaft 8 and is connected with the lower end of the lowermost guide shell 6; the thrust bearing assembly is arranged inside the bearing chamber 9 and at the lower end of the transmission pump shaft 8.
The utility model provides a major axis deep well fire pump package, compared with the prior art, the utility model has the characteristics of simple structure, reasonable in design, dependable performance, can effectively avoid major axis deep well transmission pump shaft to scurry on the impeller in service, bump or wearing and tearing with the blower inlet casing, and then lead to impeller or blower inlet casing rapid wear and tear, motor load increase and burn accident such as motor and take place, can improve the pump package to axial force bearing capacity under high load and the stop state, improve the life of transmission pump shaft effectively.
Further, referring to fig. 1, as a specific embodiment of the long-axis deep well fire pump unit provided by the present invention, the thrust bearing assembly includes an upper thrust bearing 13, a lower thrust bearing 14 and a wear pad 11, the wear pad 11 is disposed between the upper thrust bearing 13 and the lower thrust bearing 14, and the inner holes of the upper thrust bearing 13 and the lower thrust bearing 14 are in threaded fit with the transmission pump shaft 8. The upper end face of the wear pad 11 and the contact surface of the upper thrust bearing 13 form an upper friction pair end face 10, the lower end face of the wear pad 11 and the contact surface of the lower thrust bearing 14 form a lower friction pair end face 12, and the upper thrust bearing 13 and the lower thrust bearing 14 are locked and fixed on the transmission pump shaft 8 by threads, so that the bearing chamber 9 is reliably fixed at the lower end of the guide shell 6, and the impeller 7 and the guide shell 6 are prevented from moving on the transmission pump shaft 8.
Further optimize above-mentioned technical scheme, be equipped with radial water passing groove on the upper and lower both ends face of abrasion pad 11, can avoid having ponding between the fitting surface of abrasion pad 11 and top thrust bearing 13 and lower thrust bearing 14 with the help of this structure, guarantee that the relative position of abrasion pad 11 and top thrust bearing 13 and lower thrust bearing 14 is fixed.
In a specific embodiment of the present invention, as shown in fig. 1, a motor bracket 2 is disposed between the motor 1 and the pump housing 3. Wherein, the output shaft of motor 1 passes through the shaft coupling and is connected with transmission pump shaft 8, and the shaft coupling sets up in motor support 2, utilizes this structure can make equipment overall structure compact, also makes things convenient for later stage equipment maintenance simultaneously.
In order to ensure the sealing performance of the pump shell, a sealing chamber 4 matched with a transmission pump shaft 8 is arranged at the junction of the pump shell 3 and the motor support 2.
In addition, in order to facilitate the water inlet of the lower end of the long-shaft deep-well fire pump group, the upper part of the hollow bearing chamber can be designed into a spherical crown shape, the middle lower part of the hollow bearing chamber is designed into a cylindrical structure, water inlet holes are uniformly distributed around the spherical crown shape of the upper part, and the bearing chamber adopting the structure can also play a role in filtering.
In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the one described herein, and those skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed above.
Claims (7)
1. The utility model provides a major axis deep well fire pump package, includes motor, pump case, lifting pipe and pump body work portion that top-down set up, pump body work portion includes the blower inlet casing of multistage series connection, be equipped with the impeller in the blower inlet casing, the output shaft and the coaxial fixed of transmission pump shaft of motor, its characterized in that: the transmission pump shaft penetrates through the pump shell, the water raising pipe and the flow guide shell from top to bottom, the impeller is fixed on the transmission pump shaft, and the lower end of the transmission pump shaft is provided with a thrust mechanism.
2. The long shaft deep well fire pump unit of claim 1, wherein: the thrust mechanism comprises a bearing chamber and a thrust bearing assembly, wherein the bearing chamber is sleeved on the transmission pump shaft and is connected with the lower end of the lowermost guide shell; the thrust bearing assembly is arranged in the bearing chamber and is arranged at the lower end of the transmission pump shaft.
3. The long shaft deep well fire pump unit of claim 2, wherein: the thrust bearing assembly comprises an upper thrust bearing, a lower thrust bearing and a wear pad, the wear pad is arranged between the upper thrust bearing and the lower thrust bearing, and inner holes of the upper thrust bearing and the lower thrust bearing are in threaded fit with the transmission pump shaft.
4. The long shaft deep well fire pump unit of claim 3, wherein: and the upper end surface and the lower end surface of the wear-resistant pad are provided with radial water passing grooves.
5. The long shaft deep well fire pump unit according to any one of claims 1 to 4, wherein: and a motor bracket is arranged between the motor and the pump shell.
6. The long shaft deep well fire pump unit of claim 5, wherein: and a sealing chamber matched with the transmission pump shaft is arranged at the junction of the pump shell and the motor support.
7. The long shaft deep well fire pump unit of claim 6, wherein: and an output shaft of the motor is connected with a transmission pump shaft through a coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921573420.3U CN210484107U (en) | 2019-09-20 | 2019-09-20 | Long shaft deep well fire pump set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921573420.3U CN210484107U (en) | 2019-09-20 | 2019-09-20 | Long shaft deep well fire pump set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210484107U true CN210484107U (en) | 2020-05-08 |
Family
ID=70508457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921573420.3U Active CN210484107U (en) | 2019-09-20 | 2019-09-20 | Long shaft deep well fire pump set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210484107U (en) |
-
2019
- 2019-09-20 CN CN201921573420.3U patent/CN210484107U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203560108U (en) | Submersible pump | |
| CN110410331B (en) | Solar submersible pump for well | |
| CN110285073B (en) | High-reliability submersible pump | |
| CN205895628U (en) | High -lift multistage deep well subaqueous pump | |
| CN210484107U (en) | Long shaft deep well fire pump set | |
| CN201574979U (en) | Main circulation pump set for nuclear power plant | |
| CN110030193A (en) | Multi-stage shield pump and the water-carriage system for applying it | |
| CN202417954U (en) | Nuclear secondary pump charging pump of 1000MW nuclear power station | |
| CN203783910U (en) | Waterpower oil-submerged pump | |
| CN208416979U (en) | A kind of turbo-driven submerged sewage pump | |
| CN201627724U (en) | Vertical multi-stage centrifugal pump | |
| CN106246560A (en) | A kind of submersible pump exporting band check-valves | |
| CN102269177B (en) | A kind of method reducing cycle of higher pressure pressure of seal cavity of pump | |
| CN210599471U (en) | Rotor component of reliable submersible pump | |
| CN202707585U (en) | Front-mounted pump for boosting water supplied to boiler in 1,000MW supercritical thermal power generation plant | |
| CN209354365U (en) | A kind of vertical multi-stage centrifugal pump | |
| CN203035600U (en) | Unit pump structure of submerged pump loop impeller used for well | |
| CN207297397U (en) | A kind of immersible pump with axial force bearing capacity | |
| CN109751252A (en) | A kind of built-in cooling device submersible pump | |
| CN202132251U (en) | Centrifugal submersible electric pump | |
| CN2700607Y (en) | Hydraulic submersible pump | |
| CN204386892U (en) | Vertical dynamic levitated pump | |
| CN205315284U (en) | Permanent magnet speed regulation's vertical condensate pump | |
| CN106150966A (en) | The combination type immersible pump of bearing load can be reduced | |
| CN202612199U (en) | Multi-grade centrifugal pump with completely-balanced axial force of impeller |
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: Building E55, Lane 158, GANGYE Road, Xiaokunshan Town, Songjiang District, Shanghai 200000 Patentee after: Shanghai Danbo pump (Group) Co., Ltd Address before: Building E55, Lane 158, GANGYE Road, Xiaokunshan Town, Songjiang District, Shanghai 200000 Patentee before: Shanghai Danbo Pump Manufacturing Co., Ltd |