CN216478066U - Multistage pump balance ring with high-load bearing seal groove - Google Patents
Multistage pump balance ring with high-load bearing seal groove Download PDFInfo
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- CN216478066U CN216478066U CN202123048860.7U CN202123048860U CN216478066U CN 216478066 U CN216478066 U CN 216478066U CN 202123048860 U CN202123048860 U CN 202123048860U CN 216478066 U CN216478066 U CN 216478066U
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- seal groove
- reduced
- load bearing
- balance ring
- annular boss
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Abstract
The utility model discloses a multistage pump compensating ring that possesses high load bearing seal groove, including the compensating ring body, be equipped with on the terminal surface outer lane of compensating ring body with pump body installation faying face matched with cyclic annular boss, circle in the terminal surface of cyclic annular boss and be provided with the seal groove, be equipped with the sealing member in the seal groove, the diameter of seal groove is not more than 120 mm. The utility model has the advantages that the sealing groove is arranged on the inner ring of the end face of the annular boss, and the diameter of the sealing groove is reduced, so that the load bearing area of the sealing element is reduced, the load bearing capacity of the sealing element is reduced, the fault occurrence probability is reduced, and the running stability of the equipment is improved; the material consumption of spare parts is reduced, and the maintenance cost of equipment is reduced.
Description
Technical Field
The utility model belongs to the technical field of multistage centrifugal water pump balance ring, a multistage pump balance ring that possesses high load bearing seal groove is related to.
Background
Multistage centrifugal water pumps are widely used in the industrial field, specifically as follows: some warm medium pressure boilers are currently using DG155-67 x 9 feed pumps. The water pump is a ring-segment type axial superposition multi-stage centrifugal pump with 9-stage blades, two ends of the pump are supported by sliding bearings, the pump is lubricated by thin oil, and the axial force is automatically adjusted and balanced by a balancing device arranged at the tail end of the water pump.
During production and operation of the pump, the problems that a bearing seat vibrates greatly, a water pump rotor moves axially greatly, a motor bearing is burnt out, and even a motor is damaged frequently occur. The water pump balancing device is found to be seriously worn through disassembly inspection, leakage exists at the joint surface of the balancing ring and the pump body, the sealing groove is arranged on the outer ring of the end face of the balancing ring, the diameter of the sealing groove is larger and is about 315mm, the sealing strip arranged in the sealing groove is easily damaged by washing, the service life of the balancing device is about 20 days, the performance of the sealing element used sometimes is low, and even the sealing element repeatedly breaks down after running for 2-3 days.
Therefore, the leakage of the joint surface of the water pump balance ring and the pump body becomes a problem to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses its aim at provides a multistage pump compensating ring who possesses high load bearing seal groove to solve the problem among the above-mentioned background art.
The technical scheme adopted for achieving the purpose is that the multistage pump balance ring with the high-load bearing seal groove comprises a balance ring body, an annular boss matched with a mounting joint surface of a pump body is arranged on an outer ring of the end face of the balance ring body, a seal groove is formed in an inner ring of the end face of the annular boss, a seal piece is arranged in the seal groove, and the diameter of the seal groove is not larger than 120 mm.
Advantageous effects
Compared with the prior art, the utility model has the following advantages.
1. The load bearing area of the sealing element is reduced, so that the bearing load of the sealing element is reduced, the fault occurrence probability is reduced, and the running stability of equipment is improved;
2. by reducing the diameter of the sealing element, the material consumption of spare parts is reduced, and the maintenance cost of equipment is reduced;
3. the structure is simple, the existing balance ring is slightly changed, the cost is low, and the popularization is easy.
Drawings
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, a multistage pump balance ring with a high-load bearing seal groove comprises a balance ring body 1, an annular boss 2 matched with a pump body installation joint surface is arranged on an end face outer ring of the balance ring body 1, a seal groove 3 is arranged on an end face inner ring of the annular boss 2, a seal element 4 is arranged in the seal groove 3, and the diameter of the seal groove 3 is not more than 120 mm.
The utility model discloses during the implementation set up cyclic annular boss 2 on the terminal surface outer lane of compensating ring body 1, circle in the terminal surface of cyclic annular boss 2 and set up diameter for 117 mm's seal groove 3, install sealing member 4 in seal groove 3 again, cooperate the installation with compensating ring body 1 and pump body installation faying face at last.
The diameter of the sealing groove 3 on the inner ring of the annular boss 2 of the balance ring body 1 is reduced, and the diameter of the sealing element 4 is reduced through transformation, so that the load required to be borne by the sealing element 4 can be greatly reduced.
The load calculation formula of the seal 4 is as follows:
N=P*hDπ
in the formula, N represents the load carried by the balance ring seal
P represents the working pressure of the water pump
h represents the seal height
Dpi represents the seal diameter area
The working pressure of the water pump and the height of the sealing element are unchangeable, the adjustment allowance of the diameter area of the sealing element is large, the diameter of the sealing groove after measurement and modification is reduced by 63% than that of the original sealing groove, and the bearing load of the balance ring sealing element is reduced by 63% after the calculation formula is substituted.
The utility model discloses a set up seal groove 3 on the inner circle of cyclic annular boss 2 to reduce the diameter of seal groove 3, reduced the load bearing area of sealing member 4, thus reduced the bearing load of sealing member 4, reduced the trouble probability of taking place, improved the stability of equipment operation; the material consumption of spare parts is reduced, and the maintenance cost of equipment is reduced.
Claims (1)
1. The utility model provides a multistage pump balance ring that possesses high load bearing seal groove, includes balance ring body (1), its characterized in that, be equipped with on the terminal surface outer lane of balance ring body (1) with pump body installation faying face matched with cyclic annular boss (2), circle in the terminal surface of cyclic annular boss (2) and be provided with seal groove (3), be equipped with sealing member (4) in seal groove (3), the diameter of seal groove (3) is not more than 120 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123048860.7U CN216478066U (en) | 2021-12-07 | 2021-12-07 | Multistage pump balance ring with high-load bearing seal groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123048860.7U CN216478066U (en) | 2021-12-07 | 2021-12-07 | Multistage pump balance ring with high-load bearing seal groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216478066U true CN216478066U (en) | 2022-05-10 |
Family
ID=81419969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123048860.7U Active CN216478066U (en) | 2021-12-07 | 2021-12-07 | Multistage pump balance ring with high-load bearing seal groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216478066U (en) |
-
2021
- 2021-12-07 CN CN202123048860.7U patent/CN216478066U/en active Active
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