CN212337656U - Mining vertical pump body - Google Patents
Mining vertical pump body Download PDFInfo
- Publication number
- CN212337656U CN212337656U CN202020728988.4U CN202020728988U CN212337656U CN 212337656 U CN212337656 U CN 212337656U CN 202020728988 U CN202020728988 U CN 202020728988U CN 212337656 U CN212337656 U CN 212337656U
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- Prior art keywords
- pump body
- chamber
- impeller
- pump
- mining vertical
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- 238000005065 mining Methods 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 82
- 230000006837 decompression Effects 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model relates to a novel mining vertical pump body. A decompression chamber adjacent to an impeller flow channel cavity or an impeller chamber is arranged in a pump body of the mining vertical pump connected with a motor and used for collecting and storing high-pressure water leaked from the impeller flow channel cavity or the impeller chamber along an axial gap between a pump body and an impeller or a shaft sleeve. The air chamber is sealed and can retain air to ensure that the shaft extension end of the motor is in the air. The pump body at the bottommost part of the mining vertical pump is provided with a water suction chamber. A water drainage channel communicated between the decompression chamber and the water suction chamber is arranged in a pump body of the mining vertical pump. On the premise of ensuring the sealing of the motor, the leaked water is changed into internal treatment from leakage, so that the motor is convenient for users to use.
Description
Technical Field
The utility model relates to a mining vertical pump, it is the sand pump that contains solid abrasive particle in the transportable liquid, it is amphibious formula sand pump that can use on land and under water.
Background
The prior art comprises three inventions: the device comprises a mining vertical pump ZL200410078876.4, a mining vertical pump ZL200410078879.8 and a mining vertical pump ZL 200410078880.0.
The utility model discloses a mining vertical pump upgrading technology, the neotype mining vertical pump body.
Disclosure of Invention
The utility model relates to a mining vertical pump is the downdraft impeller, including single-stage pump and multistage pump. The pump body of the mining vertical pump connected with the motor is an upper pump body, the pump body with a water suction chamber at the bottommost part is a lower pump body, and the pump body between the upper pump body and the lower pump body of the multistage pump is a middle pump body. When the mining vertical pump works, an axial gap is formed between the static pump body and the rotating impeller or the shaft sleeve, high-pressure water in the impeller chamber can leak out along the axial gap, and if the inner cavity of the upper pump body where the motor shaft extension end is located is closed, the leaked water can form high pressure in the closed cavity to influence the sealing of the motor. The shell of the pump body of the existing mining vertical pump is provided with a water outlet or a water discharge pipe, so that leakage water can be discharged and decompressed, the motor can be protected to be sealed, and the service life of the mining vertical pump is prolonged. In some working conditions, the leakage water is not allowed to appear on the site, and the leakage water is drained away, and additional facilities are needed, so that the operation is troublesome.
The utility model aims at: the utility model provides a novel mining upright pump body, under the prerequisite of guaranteeing that the motor is sealed, will leak the dew and become internal treatment by leaking, convenience of customers uses.
The utility model adopts the technical proposal that: a decompression chamber adjacent to the impeller flow channel cavity or the impeller chamber is arranged in a pump body connected with the motor of the mining vertical pump and used for collecting and storing high-pressure water leaked from the impeller flow channel cavity or the impeller chamber along an axial gap between the pump body and the impeller or the shaft sleeve. The pump body connected with the mining vertical pump and the motor is also internally provided with an air chamber connected with the extension end of the motor shaft, and the air chamber is closed and can retain air to ensure that the extension end of the motor shaft is in the air. The pump body at the bottommost part of the mining vertical pump is provided with a water suction chamber. A water drainage channel communicated between the decompression chamber and the water suction chamber is arranged in a pump body of the mining vertical pump.
The decompression chamber may be one or more.
The air chamber can also be provided with a water drainage channel connected with the water suction chamber.
The impeller back cover plate of the single-stage pump is provided with a water return through hole between the hub and the port ring, the water return through hole is connected with the decompression chamber and the inner cavity of the impeller, and the water return through hole can play a role of a water suction port on the double-suction pump to recover the leakage water.
High-pressure water of the impeller chamber leaked from the axial gap is recovered through the water return through hole, and the multi-stage decompression chamber drains water layer by layer and releases pressure layer by layer, so that the influence of leaked water on the air chamber is reduced, air in the air chamber can be stored for a long time, the sealing performance of the motor is improved, and the service life of the mining vertical pump is prolonged.
Drawings
Fig. 1 is a schematic longitudinal sectional view of a multistage pump of a mining vertical pump according to an embodiment of the present invention, and fig. 2 is a sectional view.
Fig. 3 is a schematic longitudinal section view of a single-stage pump of the mining vertical pump according to the embodiment of the present invention, and fig. 4 is a sectional view.
Detailed Description
The mining vertical pump of the present invention will be further described with reference to the accompanying drawings.
Fig. 1 and 2 show an embodiment of a multistage pump of the mining vertical pump of the present invention.
In fig. 1, the pump body of the mining vertical pump connected with the motor is an upper pump body 20, the pump body at the bottommost part with the water suction chamber 10 is a lower pump body 22, and the pump body between the upper pump body 20 and the lower pump body 22 of the multistage pump is an intermediate pump body 21. The water suction port of the first-stage impeller 23 faces downwards, the water suction port of the second-stage impeller 24 faces upwards, and the upper end of the second-stage impeller 24 is provided with a shaft sleeve 25. The motor connected to the upper pump body has a rotor shaft 26, a mechanical seal 27. The upper pump body 20 is internally provided with a primary decompression chamber 15 adjacent to the primary impeller flow channel cavity 12, a secondary decompression chamber 16 adjacent to the primary decompression chamber 15 and a closed air chamber 17 connected with the shaft extension end of the motor. The pump body comprises an upper pump body 20, a middle pump body 21 and a lower pump body 22, a water drainage channel (III) communicated between a first-stage decompression chamber 15 and a water suction chamber 10, a water drainage channel (II) communicated between a second-stage decompression chamber 16 and the water suction chamber 10, and a water drainage channel (I) communicated between an air chamber 17 and the water suction chamber 10.
When the mining vertical pump works, water enters the water suction chamber 10 from a water suction port of the lower pump body 22, enters the primary impeller chamber 11 through the primary impeller 23, then enters the secondary impeller chamber 13 through the primary runner cavity 12 and the secondary impeller 24, and then is discharged through the secondary runner cavity 14.
When the mining vertical pump works, an axial gap is formed between a static pump body and a rotating impeller or a shaft sleeve, high pressure water generated by a primary impeller chamber 11 and a primary runner chamber 12 connected with the high pressure water can leak to a primary decompression chamber 15 along the axial gap, high pressure water of the primary decompression chamber 15 can leak to a secondary decompression chamber 16 along the axial gap, and high pressure water of the secondary decompression chamber 16 can leak to an air chamber 17 along the axial gap. The leaked water in the first-stage decompression chamber 15 can be discharged to the water suction chamber 10 along the drainage channel (c), so that the pressure in the first-stage decompression chamber 15 can be reduced; the leakage water in the secondary decompression chamber 16 can be discharged to the water suction chamber 10 along the drainage channel II, so that the pressure in the secondary decompression chamber 16 can be reduced; the leakage water in the air chamber 17 is discharged to the water suction chamber 10 along the drain passage (i), and the pressure in the air chamber 17 can be reduced. The leakage water is drained layer by layer through the multistage decompression chamber, the pressure is relieved layer by layer, the leakage amount entering the air chamber is reduced, the air in the air chamber can be stored for a long time, the sealing performance of the motor is improved, and the service life of the mining vertical pump is prolonged.
The cross section of the pump body in fig. 2 shows that the axial flow passages (r) of the water discharge channels (r), the axial flow passages (r) of the primary flow passage chamber 12 and the axial flow passages (r) of the secondary flow passage chamber 14 are distributed at the positions on the pump body, and the size, shape and number of the axial flow passages (r) are adjusted according to specific design requirements.
Fig. 3 and 4 show an embodiment of a single-stage pump of the mining vertical pump of the invention.
In fig. 3, the pump body of the mining vertical pump connected with the motor is an upper pump body 20, and the pump body with the water suction chamber 10 at the bottommost part is a lower pump body 22. The water suction port of the first-stage impeller 23 faces downwards, and the upper end of the first-stage impeller 23 is provided with a shaft sleeve 25. The motor connected to the upper pump body has a rotor shaft 26, a mechanical seal 27. The upper pump body 20 is provided with a first-stage decompression chamber 15 adjacent to the first-stage impeller chamber 11, a second-stage decompression chamber 16 adjacent to the first-stage decompression chamber 15, and a sealed air chamber 17 connected with the extending end of the motor. The pump body comprises an upper pump body, a lower pump body, a water drainage channel (III) communicated between the first-stage decompression chamber (15) and the water suction chamber (10), and a water drainage channel (II) communicated between the second-stage decompression chamber (16) and the water suction chamber (10).
When the mining vertical pump works, water enters the water suction chamber 10 from the water suction port of the lower pump body 22, enters the primary impeller chamber 11 through the primary impeller 23, and is discharged through the primary runner cavity 12.
When the mining vertical pump works, an axial gap is formed between a static pump body and a rotating impeller or a shaft sleeve, high-pressure water generated by a primary impeller chamber 11 leaks to a primary decompression chamber 15 along the axial gap, high-pressure water generated by the primary decompression chamber 15 leaks to a secondary decompression chamber 16 along the axial gap, and high-pressure water generated by the secondary decompression chamber 16 leaks to an air chamber 17 along the axial gap. The leaked water in the first-stage decompression chamber 15 is discharged to the water suction chamber 10 along the drainage passage (c), and the pressure in the first-stage decompression chamber 15 can be reduced. The leaked water in the first-stage decompression chamber 15 can also return to the impeller cavity through a water return through hole 18 of a rear cover plate of the first-stage impeller 23 between the hub and the mouth ring, so that the pressure in the first-stage decompression chamber 15 is further reduced. The leakage water in the secondary decompression chamber 16 is discharged to the water suction chamber 10 along the drainage passage (ii), and the pressure in the secondary decompression chamber 16 can be reduced. The leaked water is recycled through the water return through hole, the multi-stage decompression chamber drains water layer by layer, the pressure is relieved layer by layer, the influence of the leaked water on the air chamber is reduced, the air in the air chamber can be stored for a long time, the sealing performance of the motor is improved, and the service life of the mining vertical pump is prolonged.
The cross section of the pump body in fig. 4 shows the position distribution of the water drainage channels (c) and the axial flow channels (c) of the primary flow channel cavity 12 on the pump body, and the size, shape and number of the axial flow channels are adjusted according to the specific design requirements.
Claims (4)
1. The utility model provides a mining vertical pump body, mining vertical pump include the pump body, pump shaft, impeller and motor, its characterized in that: the mining vertical pump is characterized in that a decompression chamber which is adjacent to the impeller flow passage cavity or the impeller chamber and used for collecting and storing high-pressure water leaked from the impeller flow passage cavity or the impeller chamber along an axial gap between the pump body and the impeller or the shaft sleeve is arranged in the pump body connected with the motor, a closed air chamber which is connected with the extending end of the motor shaft and can store air is arranged, a water suction chamber is arranged on the pump body at the bottommost part of the mining vertical pump, and a water drainage channel communicated between the decompression chamber and the water suction chamber is arranged in the pump body of the mining vertical pump.
2. The mining vertical pump body of claim 1, wherein: one or more decompression chambers adjacent to the decompression chamber are arranged in a pump body connected with the mining vertical pump and the motor.
3. The mining vertical pump body of claim 1, wherein: a water drainage channel communicated between the air chamber and the water suction chamber is arranged in a pump body of the mining vertical pump.
4. The mining vertical pump body of claim 1, wherein: the back cover plate of the impeller of the single-stage pump is provided with a backwater through hole which is connected with the decompression chamber and the inner cavity of the impeller between the hub and the mouth ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020728988.4U CN212337656U (en) | 2020-04-28 | 2020-04-28 | Mining vertical pump body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020728988.4U CN212337656U (en) | 2020-04-28 | 2020-04-28 | Mining vertical pump body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212337656U true CN212337656U (en) | 2021-01-12 |
Family
ID=74079192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020728988.4U Active CN212337656U (en) | 2020-04-28 | 2020-04-28 | Mining vertical pump body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212337656U (en) |
-
2020
- 2020-04-28 CN CN202020728988.4U patent/CN212337656U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220324 Address after: 064000 No. 162, Gongyuan Road, Fengrun District, Tangshan City, Hebei Province (in the courtyard of Tangshan light machinery factory) Patentee after: Tangshan Qingwu water pump Co.,Ltd. Address before: 064000 room 901, door 4, block a, phase I, Wanlong apartment, Fengrun District, Tangshan City, Hebei Province Patentee before: Wang Xidong |