CN220600020U - Centrifugal slurry pump with good sealing effect - Google Patents
Centrifugal slurry pump with good sealing effect Download PDFInfo
- Publication number
- CN220600020U CN220600020U CN202322345223.9U CN202322345223U CN220600020U CN 220600020 U CN220600020 U CN 220600020U CN 202322345223 U CN202322345223 U CN 202322345223U CN 220600020 U CN220600020 U CN 220600020U
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- Prior art keywords
- bearing
- pump
- seal ring
- liquid
- ring
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- 238000007789 sealing Methods 0.000 title claims abstract description 42
- 239000002002 slurry Substances 0.000 title claims abstract description 18
- 230000000694 effects Effects 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 239000000945 filler Substances 0.000 claims abstract description 16
- 210000004907 gland Anatomy 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000012856 packing Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 15
- 230000000903 blocking effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a centrifugal slurry pump with good sealing effect, which comprises a pump body, a main impeller, a liquid outlet, a liquid inlet, a left guard plate, a right guard plate, a pump shaft and a stuffing box, wherein stuffing is arranged in the stuffing box, a stuffing gland is fixed on the left side of the stuffing box, a cavity communicated with the inner cavity of the pump body is arranged between the left guard plate and the stuffing box, an auxiliary impeller arranged on the pump shaft is arranged in the cavity, a sealing table I is arranged on the right side of the left guard plate, a sealing table II which forms labyrinth seal with the sealing table I is arranged on the left side of the main impeller, at least six liquid sealing rings are arranged in the stuffing box, and liquid injection holes communicated with the liquid sealing rings are formed in the stuffing box. According to the utility model, at least six sealing fillers and liquid sealing rings are arranged in the stuffing box, sealing seals are arranged between the left guard plate and the main impeller, and the auxiliary impeller in the cavity is matched, so that the pressure in the direction of the main impeller is provided by the rotation of the auxiliary impeller, the sealing effect is better, and the liquid leakage is better prevented.
Description
Technical Field
The utility model relates to a centrifugal slurry pump with good sealing effect, and belongs to the technical field of stirring equipment.
Background
The centrifugal slurry pump is a solid-liquid two-phase flow conveying pump which is advanced at present, has higher conveying efficiency and is widely applied to the fields of industries such as mines, power plants, dredging, metallurgy, chemical industry, building materials, petroleum and the like.
However, the pump shaft of the existing centrifugal slurry pump is only sealed by the filler after extending out of the pump shell, so that the sealing effect is poor, and slurry leakage is easy to occur.
Disclosure of Invention
The utility model provides a centrifugal slurry pump with good sealing effect, which solves the problems that the pump shaft of the conventional slurry pump is only sealed by filling after extending out of a pump shell, the sealing effect is poor, and slurry leakage is easy to cause.
The utility model relates to a centrifugal slurry pump with good sealing effect, which comprises a pump body, wherein a main impeller is arranged in the pump body, a liquid outlet is formed in the upper part of the pump body, a liquid inlet is formed in the right side of the pump body, a left guard plate and a right guard plate which are fixed on the pump body are arranged on the left side and the right side of the main impeller, a pump shaft is fixedly arranged on the left side of the main impeller, a stuffing box is fixedly arranged on the left side of the left guard plate, a filler is arranged in the stuffing box, a filler gland is fixedly arranged on the left side of the stuffing box, a cavity communicated with the inner cavity of the pump body is arranged between the left guard plate and the stuffing box, an auxiliary impeller arranged on the pump shaft is arranged in the cavity, a sealing platform I is arranged on the right side of the left guard plate, a sealing platform II which forms labyrinth seal with the sealing platform I is arranged on the left side of the main impeller, no less than six liquid sealing rings are arranged in the stuffing box, and liquid injecting holes communicated with the liquid sealing rings are arranged on the stuffing box.
Preferably, the left side of the stuffing box is provided with a bearing body seat, two ends of the bearing body seat are provided with bearings for supporting a pump shaft, an oil blocking positioning frame is arranged between the bearings on two sides, the top of the bearing body seat is provided with a bearing body cover, bearing covers are arranged on the outer sides of the bearings on two sides, a water throwing ring is arranged between an inner hole of the right bearing cover and the pump shaft, the left end of the water throwing ring is in contact with the inner ring of the bearing, the right side of the water throwing ring is provided with a disassembling ring, the right side of the disassembling ring is provided with a shaft sleeve, and the right end of the shaft sleeve is in contact with the auxiliary impeller. The two pairs of rolling bearing support modes are adopted, so that the load of the pump is borne to the greatest extent, the pump is enabled to run more stably, the service life is prolonged, and the equipment maintenance cost is reduced.
Preferably, a framework oil seal is arranged between the inner hole of the bearing gland at the left side and the pump shaft and between the bearing gland at the right side and the water throwing ring. The water throwing ring and the framework oil seal are arranged at the bearing gland to prevent slurry from immersing the bearing and prevent lubricating grease from leaking, ensure that the bearing runs with abundant oil quantity, play a double protection role, prolong the service life and meet the environmental protection requirement.
Preferably, the liquid seal ring is a water seal ring or an oil seal ring, when the liquid seal ring is a water seal ring, the water seal ring is positioned on the right side of the rightmost filler, and when the liquid seal ring is an oil seal ring, the oil seal ring is positioned between the rightmost fillers.
As an optimization, the bearing body cover at the top of the bearing is provided with the air outlet hole, so that the heat dissipation of the bearing is facilitated, and the air generated during the rotation of the bearing can be discharged, the pressure at the bearing gland is reduced, and the service life of the framework oil seal is prevented from being influenced by excessive pressure.
The utility model has the following beneficial effects:
the packing box is internally provided with at least six sealing fillers and a liquid sealing ring, and is provided with a seal between the left guard plate and the main impeller, and the sealing ring is matched with the auxiliary impeller in the cavity again, so that the pressure in the direction of the main impeller is provided through the rotation of the auxiliary impeller, the sealing effect is better, and the liquid leakage is better prevented.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a portion of the structure of the present utility model;
in the figure: 1. the device comprises a liquid outlet, 2, a pump body, 3, a main impeller, 4, a liquid inlet, 5, a right guard plate, 6, a pump shaft, 7, a first sealing table, 8, an auxiliary impeller, 9, a left guard plate, 10, a stuffing box, 11, a stuffing gland, 12, a bearing body seat, 13, an oil blocking locating rack, 14, a bearing, 15, a bearing gland, 16, a framework oil seal, 17, an air outlet, 18, a bearing body cover, 19, a water throwing ring, 20, a dismounting ring, 21, stuffing, 22, a liquid sealing ring, 23 and a shaft sleeve.
Detailed Description
The utility model is further illustrated below with reference to examples.
In the embodiment 1, as shown in fig. 1 to 2, the centrifugal slurry pump with good sealing effect comprises a pump body 2, wherein a main impeller 3 is arranged in the pump body 2, a liquid outlet 1 is arranged at the upper part of the pump body 2, a liquid inlet 4 is arranged on the right side of the pump body 2, a left guard plate 9 and a right guard plate 5 which are fixed on the pump body 2 are arranged on the left side and the right side of the main impeller 3, a pump shaft 6 is fixedly arranged on the left side of the main impeller 3, a stuffing box 10 is fixed on the left side of the left guard plate 9, a filler 21 is arranged in the stuffing box 10, a filler gland 11 is fixed on the left side of the stuffing box 10, a cavity which is communicated with the inner cavity of the pump body 2 is arranged between the left guard plate 9 and the stuffing box 10, a secondary impeller 8 which is arranged on the pump shaft 6 is arranged in the cavity, a sealing table 7 is arranged on the right side of the left guard plate 9, a sealing table two which forms labyrinth sealing with the sealing table 7 are arranged on the left side of the main impeller 3, no less than six channels are arranged in the stuffing box 10, a liquid sealing ring 22 is also arranged in the stuffing box 10, and a liquid filling hole which is communicated with the liquid sealing ring 22 is arranged on the stuffing box 10.
Working principle: during operation, the pump shaft 6 rotates to drive the main impeller 3 and the auxiliary impeller 8 to rotate, the main impeller 3 rotates to complete liquid conveying, the auxiliary impeller 8 rotates to generate rightward pressure, a small amount of liquid entering from the labyrinth seal can be pushed to enter the inner cavity of the pump body 2, and even if a small amount of liquid flows into the stuffing box 10, the liquid can be sealed by the multi-channel stuffing 21, so that liquid leakage is prevented.
In embodiment 2, on the basis of embodiment 1, a bearing body seat 12 is arranged on the left side of a stuffing box 10, bearings 14 for supporting a pump shaft 6 are arranged at two ends of the bearing body seat 12, an oil blocking positioning frame 13 is arranged between the bearings 14 at two sides, a bearing body cover 18 is arranged at the top of the bearing body seat 12, bearing covers 15 are arranged on the outer sides of the bearings 14 at two sides, a water-throwing ring 19 is arranged between an inner hole of the right bearing cover 15 and the pump shaft 6, the left end of the water-throwing ring 19 is in contact with an inner ring of the bearing 14, a disassembling ring 20 is arranged on the right side of the water-throwing ring 19, a shaft sleeve 23 is arranged on the right side of the disassembling ring 20, and the right end of the shaft sleeve 23 is in contact with a secondary impeller 8.
A framework oil seal 16 is arranged between the inner hole of the bearing gland 15 on the left side and the pump shaft 6 and between the bearing gland 15 on the right side and the water throwing ring 19.
The liquid seal ring 22 is a water seal ring or an oil seal ring, when the liquid seal ring 22 is a water seal ring, the water seal ring is positioned on the right side of the rightmost filler 21, such as the liquid seal ring 22 at the lower part of the pump shaft 6 in fig. 2, which is that the water injected into the liquid seal ring 22 can lubricate the filler 21, and the redundant water can be pumped into the cavity, when the liquid seal ring 22 is an oil seal ring, the oil seal ring is positioned between the rightmost fillers 21, such as the liquid seal ring 22 at the upper part of the pump shaft 6 in fig. 2, the liquid seal ring 22 is positioned between the fillers 21, so that the lubricating oil is prevented from leaking into the cavity.
The bearing body cover 18 at the top of the bearing 14 is provided with an air outlet hole 17.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
In the description of the present utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, only for convenience in describing the present utility model, and do not require that the present utility model must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Claims (5)
1. The utility model provides a centrifugal slurry pump that sealed effect is good, including pump body (2), be equipped with main impeller (3) in pump body (2), the upper portion of pump body (2) is equipped with liquid outlet (1), the right side of pump body (2) is equipped with inlet (4), main impeller (3) left and right sides is equipped with left backplate (9) and right backplate (5) of fixing on pump body (2), main impeller (3) left side fixed mounting has pump shaft (6), the left side of left backplate (9) is fixed with packing box (10), be equipped with filler (21) in packing box (10), the left side of packing box (10) is fixed with gland (11), its characterized in that: be equipped with the cavity of intercommunication pump body (2) inner chamber between left backplate (9) and packing box (10), be equipped with in the cavity and install auxiliary impeller (8) on pump shaft (6), the right side of left backplate (9) is equipped with sealing station one (7), the left side of main impeller (3) is equipped with and forms labyrinth seal's sealing station two with sealing station one (7), packing (21) are equipped with not less than six, still be equipped with liquid seal ring (22) in packing box (10), be equipped with the notes liquid hole of intercommunication liquid seal ring (22) on packing box (10).
2. The centrifugal slurry pump with good sealing effect according to claim 1, wherein: the left side of packing box (10) is equipped with bearing body seat (12), bearing body seat (12) both ends are equipped with bearing (14) that support pump shaft (6), be equipped with between bearing (14) of both sides and keep off oily locating rack (13), bearing body seat (12) top is equipped with bearing body lid (18), bearing (14) outside of both sides all is equipped with bearing gland (15), be equipped with between the hole of right side bearing gland (15) and pump shaft (6) and get rid of water ring (19), get rid of water ring (19) left end and the inner circle contact of bearing (14), get rid of water ring (19) right side and be equipped with dismantlement ring (20), dismantlement ring (20) right side is equipped with axle sleeve (23), the right-hand member and the auxiliary impeller (8) contact of axle sleeve (23).
3. The centrifugal slurry pump with good sealing effect according to claim 2, wherein: a framework oil seal (16) is arranged between the inner hole of the bearing gland (15) on the left side and the pump shaft (6) and between the bearing gland (15) on the right side and the water throwing ring (19).
4. A centrifugal slurry pump with good sealing effect according to claim 3, characterized in that: the liquid seal ring (22) is a water seal ring or an oil seal ring, when the liquid seal ring (22) is a water seal ring, the water seal ring is positioned on the right side of the rightmost filler (21), and when the liquid seal ring (22) is an oil seal ring, the oil seal ring is positioned between the rightmost fillers (21).
5. A centrifugal slurry pump with good sealing effect according to claim 3, characterized in that: an air outlet hole (17) is arranged on a bearing body cover (18) at the top of the bearing (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322345223.9U CN220600020U (en) | 2023-08-30 | 2023-08-30 | Centrifugal slurry pump with good sealing effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322345223.9U CN220600020U (en) | 2023-08-30 | 2023-08-30 | Centrifugal slurry pump with good sealing effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220600020U true CN220600020U (en) | 2024-03-15 |
Family
ID=90164189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322345223.9U Active CN220600020U (en) | 2023-08-30 | 2023-08-30 | Centrifugal slurry pump with good sealing effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220600020U (en) |
-
2023
- 2023-08-30 CN CN202322345223.9U patent/CN220600020U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |