CN211059030U - Nuclear power station fault-free pit pump - Google Patents
Nuclear power station fault-free pit pump Download PDFInfo
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- CN211059030U CN211059030U CN201922104392.7U CN201922104392U CN211059030U CN 211059030 U CN211059030 U CN 211059030U CN 201922104392 U CN201922104392 U CN 201922104392U CN 211059030 U CN211059030 U CN 211059030U
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Abstract
The utility model relates to a nuclear power station trouble-free pit pump field, more specifically the nuclear power station trouble-free pit pump that says so, simple structure, the fault rate is low, has avoided complicated operation, has reduced the maintenance cost. The motor is connected with the motor support, the motor support is connected with the bearing support, angular contact ball bearing installs the upper end at the bearing support, cylindrical roller bearing installs the lower extreme at the bearing support, the axle is installed and is being circled at angular contact ball bearing and cylindrical roller bearing, the one end of axle is connected through the shaft coupling with the motor output shaft, the bearing cap is installed on the bearing support, the stay tube is connected with the bearing support, the pump cover is connected with the stay tube, the lid oral ring is fixed on the pump cover, the impeller mounting is at the lower extreme of axle, the pump body is connected with the pump cover, body oral ring is fixed on the pump body, the suction tube is connected with the pump body, the filter screen is installed.
Description
Technical Field
The utility model relates to a nuclear power station trouble-free pit pump field, more specifically the nuclear power station trouble-free pit pump that says so.
Background
The conventional pump structure design adopts a large amount of sealing elements, and the sealing elements are seriously worn and frequently replaced when the equipment runs; secondly, when the equipment is used for the first time, operations such as exhausting or back flowing are needed, time and labor are wasted, and the maintenance cost is high, so that the fault-free pit pump of the nuclear power station is designed.
Disclosure of Invention
The utility model discloses the main technical problem who solves provides a nuclear power station trouble-free pit pump, simple structure, and the fault rate is low, has avoided complicated operation, has reduced the maintenance cost.
In order to solve the technical problem, the utility model relates to a nuclear power station trouble-free pit pump field, more specifically the nuclear power station trouble-free pit pump that says so includes motor, motor support, angular contact ball bearing, bearing support, cylindrical roller bearing, bearing cap, drain pipe, axle, stay tube, pump cover, lid choma, impeller, body choma, the pump body, filter screen and inhales the pipe, simple structure, the fault rate is low, has avoided complicated operation, has reduced the maintenance cost.
The motor is connected with the motor support, the motor support is connected with the bearing support, angular contact ball bearing installs the upper end at the bearing support, cylindrical roller bearing installs the lower extreme at the bearing support, the axle is installed and is being circled at angular contact ball bearing and cylindrical roller bearing, the one end of axle is connected through the shaft coupling with the motor output shaft, the bearing cap passes through the screw installation on the bearing support, stay tube one end is connected with the bearing support, the pump cover is connected with the stay tube, the flap ring is fixed on the pump cover, the lower extreme at the axle is installed through thin nut to the impeller, the pump body is connected with the pump cover, body mouthful ring is fixed on the pump body, the suction tube upper end is connected with the pump body, the filter screen is installed at the suction tube lower extreme, it is gap.
As the further optimization of this technical scheme, the utility model relates to a nuclear power station trouble-free pit pump motor installation automatically open and stop the device.
As the further optimization of this technical scheme, the utility model relates to a nuclear power station trouble-free pit pump the pump body use corrosion-resistant stainless steel 316 material.
As the further optimization of this technical scheme, the utility model relates to a nuclear power station trouble-free pit pump the motor be dampproofing anti salt fog inverter motor.
As the further optimization of this technical scheme, the utility model relates to a nuclear power station trouble-free pit pump the axle need heat angular contact ball bearing and cylindrical roller bearing to 95 ℃ when the installation.
As the further optimization of the technical proposal, the utility model relates to a nuclear power station trouble-free pit pump the pump body and the clearance of the cover opening ring and the body opening ring are 0.3mm-0.6 mm.
The utility model relates to a nuclear power station does not have trouble pit pump's beneficial effect does:
the utility model relates to a nuclear power station trouble-free pit pump, simple structure, the fault rate is low, has avoided complicated operation, has reduced the maintenance cost.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a nuclear power station fault-free pit pump of the present invention;
FIG. 2 is a schematic view of a portion of the process of FIG. 1.
In the figure: a motor 1; a motor bracket 2; angular contact ball bearings 3; a bearing support 4; a cylindrical roller bearing 5; a bearing cap 6; a liquid outlet pipe 7; a shaft 8; a support tube 9; a pump cover 10; a cover ring 11; an impeller 12; a body orifice ring 13; a pump body 14; a filter screen 15; a suction tube 16.
Detailed Description
The first embodiment is as follows:
the present embodiment is described below with reference to fig. 1 and 2, and the utility model relates to a nuclear power station fault-free pit pump field, more specifically the nuclear power station fault-free pit pump that says so, including motor 1, motor support 2, angular contact ball bearing 3, bearing support 4, cylindrical roller bearing 5, bearing cap 6, drain pipe 7, axle 8, stay tube 9, pump cover 10, lid mouth ring 11, impeller 12, body mouth ring 13, the pump body 14, filter screen 15 and suction pipe 16, simple structure, the fault rate is low, has avoided complicated operation, has reduced the maintenance cost.
The motor 1 is connected with the motor support 2, the motor 1 and the motor support 2 are connected by bolts, the motor support 2 is connected with the bearing support 4 by bolts, the angular contact ball bearing 3 is arranged at the upper end of the bearing support 4, the cylindrical roller bearing 5 is arranged at the lower end of the bearing support 4, the shaft 8 is arranged on the inner rings of the angular contact ball bearing 3 and the cylindrical roller bearing 5, one end of the shaft 8 is connected with the output shaft of the motor 1 by a coupler, the bearing cover 6 is arranged on the bearing support 4 by screws, one end of the supporting tube 9 is connected with the bearing cover 6, the supporting tube 9 is connected with the bearing support 4 by bolts, the pump cover 10 is connected with the supporting tube 9 by bolts, the cover ring 11 is fixed on the pump cover 10, and the impeller 12 is, the pump body 14 is connected with the pump cover 10, the pump body 14 is connected with the pump cover 10 through bolts, the body opening ring 13 is fixed on the pump body 14, the upper end of the suction pipe 16 is connected with the pump body 14, the suction pipe 16 is connected with the pump body 14 through bolts, the filter screen 15 is installed at the lower end of the suction pipe 16, a gap of 0.3mm-0.6mm is reserved between the impeller 12 and the cover opening ring 11 and between the impeller 12 and the body opening ring 13, the liquid outlet pipe 7 is connected with the pump body 14, and the liquid outlet pipe 7 is connected with the pump body 14 through bolts.
When the device is used, the motor 1 is started, the motor 1 drives the impeller 12 to rotate through the coupler and the shaft 8, waste liquid generated in the operation process of the nuclear power station enters the suction pipe 16 after being filtered through the filter screen 15, then enters the pump body 14 and rotates along with the rotating impeller 12, the waste liquid generates pressure around the impeller 12, the driving waste liquid is discharged through the liquid outlet pipe 7, after the waste liquid is discharged, the pressure below the impeller 12 is reduced, the waste liquid passes through the filter screen 15, the suction pipe 16 and the pump body 14 again under the action of atmospheric pressure and is discharged through the liquid outlet pipe 7 under the pressurization action of the impeller 12, the pump body 14 is located in the waste liquid, exhaust or backflow operation is not needed during starting, the motor 1 is separated from the waste liquid, and the device is convenient to maintain, simple in overall structure, convenient.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.
Claims (8)
1. The utility model provides a nuclear power station does not have trouble pit pump, includes motor (1), motor support (2), angular contact ball bearing (3), bearing support (4), cylindrical roller bearing (5), bearing cap (6), drain pipe (7), axle (8), stay tube (9), pump cover (10), lid mouth ring (11), impeller (12), body mouth ring (13), the pump body (14), filter screen (15) and inhales pipe (16), its characterized in that: motor (1) and motor support (2) are connected, motor support (2) are connected with bearing support (4), angular contact ball bearing (3) are installed in the upper end of bearing support (4), the lower extreme at bearing support (4) is installed in cylindrical roller bearing (5), axle (8) are installed on angular contact ball bearing (3) and cylindrical roller bearing (5) inner race, the one end of axle (8) is connected through the shaft coupling with motor (1) output shaft, bearing cap (6) are installed on bearing support (4) through the screw, stay tube (9) one end is connected with bearing cap (6), pump cover (10) are connected with stay tube (9), cover mouth ring (11) is fixed on pump cover (10), impeller (12) is installed the lower extreme at axle (8) through thin nut, pump body (14) are connected with pump cover (10), body mouth ring (13) is fixed on pump body (14), the upper end of the suction pipe (16) is connected with the pump body (14), the filter screen (15) is arranged at the lower end of the suction pipe (16), a gap is reserved between the impeller (12) and the cover opening ring (11) and between the impeller and the body opening ring (13), and the liquid outlet pipe (7) is connected with the pump body (14).
2. The nuclear power plant fault-free pit pump of claim 1, wherein: the motor (1) is provided with an automatic start-stop device.
3. The nuclear power plant fault-free pit pump of claim 1, wherein: the pump body (14) is made of corrosion-resistant stainless steel (316).
4. The nuclear power plant fault-free pit pump of claim 1, wherein: the motor (1) is a damp-proof salt fog-proof variable frequency motor.
5. The nuclear power plant fault-free pit pump of claim 1, wherein: when the shaft (8) is installed, the angular contact ball bearing (3) and the cylindrical roller bearing (5) need to be heated to 95 ℃.
6. The nuclear power plant fault-free pit pump of claim 1, wherein: the clearance between the pump body (14) and the cover opening ring (11) and the clearance between the pump body and the body opening ring (13) are 0.3mm-0.6 mm.
7. The nuclear power plant fault-free pit pump of claim 1, wherein: the coupling is required to be heated to 80 ℃ and then mounted on the shaft (8).
8. The nuclear power plant fault-free pit pump of claim 1, wherein: the shaft (8) is parallel to the central lines of the angular contact ball bearing (3) and the cylindrical roller bearing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922104392.7U CN211059030U (en) | 2019-11-29 | 2019-11-29 | Nuclear power station fault-free pit pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922104392.7U CN211059030U (en) | 2019-11-29 | 2019-11-29 | Nuclear power station fault-free pit pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211059030U true CN211059030U (en) | 2020-07-21 |
Family
ID=71595192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922104392.7U Active CN211059030U (en) | 2019-11-29 | 2019-11-29 | Nuclear power station fault-free pit pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211059030U (en) |
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2019
- 2019-11-29 CN CN201922104392.7U patent/CN211059030U/en active Active
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