CN216199216U - Back blade impeller for coking process pump - Google Patents
Back blade impeller for coking process pump Download PDFInfo
- Publication number
- CN216199216U CN216199216U CN202122752497.0U CN202122752497U CN216199216U CN 216199216 U CN216199216 U CN 216199216U CN 202122752497 U CN202122752497 U CN 202122752497U CN 216199216 U CN216199216 U CN 216199216U
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- blade
- cover plate
- lantern ring
- coking process
- process pump
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Abstract
The utility model discloses a back blade impeller for a coking process pump, which comprises a main blade, a hub and a cover plate, wherein the main blade is provided with a plurality of blades; the front side of the cover plate is provided with a plurality of main blades, the hub is fixedly sleeved with an installation lantern ring, the outer side wall of the installation lantern ring is fixedly provided with a back blade, the rear side of the cover plate is provided with a plurality of radial limiting grooves, one side of the back blade is embedded into the radial limiting grooves, the other side of the back blade axially extends out of the radial limiting grooves, the inner end of the installation lantern ring is abutted to the cover plate, and the outer end of the installation lantern ring is fixed through a thread locking ring sleeved on the hub. The structure that sets up can be dismantled to the back of the body blade, and the cost is reduced conveniently adjusts the extension size of back of the body blade, adapts to multiple operating mode, makes things convenient for the dismouting to change.
Description
Technical Field
The utility model relates to the technical field of a coking process pump, in particular to a back blade impeller for the coking process pump.
Background
The single-stage centrifugal chemical pump is used in more sections in the coking industry, the specific gravity of media such as ammonia water, waste water and tar is high, the tar and residue media contain a certain amount of solids, and the pump is frequently used in a reverse flow manner in the coking process, so that the specific pressure of a mechanical seal dynamic ring and a mechanical seal static ring for the pump is seriously higher, solid particles enter the joint surface of the dynamic ring and the static ring to become an abrasive, the service life of the mechanical seal is often shortened, and the bearing is frequently damaged due to the action of axial force. If the axial force is borne by adding the bearing, the product cost is increased, and the interchangeability of parts is not facilitated. The defects are solved by adopting the back blade structure, and then the back blade structure is integrally arranged on the cover plate, so that the manufacturing cost is high, the replacement is inconvenient, and the adaptability is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a back blade impeller for a coking process pump, overcomes the defects and solves the problem that the mechanical seal and the bearing of the horizontal chemical process pump used in the coking industry are frequently damaged.
In order to achieve the purpose, the utility model provides the following technical scheme: a back blade impeller for a coking process pump comprises a main blade, a hub and a cover plate; the front side of the cover plate is provided with a plurality of main blades, the hub is fixedly sleeved with an installation lantern ring, the outer side wall of the installation lantern ring is fixedly provided with a back blade, the rear side of the cover plate is provided with a plurality of radial limiting grooves, one side of the back blade is embedded into the radial limiting grooves, the other side of the back blade axially extends out of the radial limiting grooves, the inner end of the installation lantern ring is abutted to the cover plate, and the outer end of the installation lantern ring is fixed through a thread locking ring sleeved on the hub.
In order to improve the installation stability of the installation lantern ring, the side part of the hub is provided with a limiting key, and a circumferential limiting groove for the limiting key to be matched with and embedded into the limiting groove is axially formed in the inner wall of the installation lantern ring.
In order to reduce the impact of the installation lantern ring and the cover plate and prolong the service life, the cover plate is provided with a shock pad, and the inner end of the installation lantern ring is contacted with the shock pad.
In order to improve the installation stability of the back vane, an installation disc is arranged outside the installation lantern ring, the inner end of the back vane is fixed on the outer side wall of the installation lantern ring, and part of the side end of the back vane is fixed on the end face of the installation disc.
In order to reduce the impact of the mounting disc and the cover plate and prolong the service life, the cover plate is provided with a shock pad, and the inner end of the mounting disc is in contact with the shock pad.
In order to improve the stability and rigidity of the back blades, the stabilizing device further comprises a stabilizing ring, and the outer ends of the back blades are fixedly connected with the inner wall of the stabilizing ring.
The utility model has the following technical effects: the structure that sets up can be dismantled to the back of the body blade, and the cost is reduced conveniently adjusts the extension size of back of the body blade, adapts to multiple operating mode, makes things convenient for the dismouting to change.
Drawings
FIG. 1 is a schematic structural view of an impeller in embodiment 1;
fig. 2 is a schematic structural view of an impeller in embodiment 2.
Reference numerals: 1. a main blade; 2. a hub; 21. a limiting key; 3. a cover plate; 31. a radial limiting groove; 32. a shock pad; 4. mounting a lantern ring; 41. a circumferential limiting groove; 5. a back leaf; 6. mounting a disc; 7. a stabilizing ring; 8. and (4) screwing a locking ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, a back-blade impeller for a coking process pump comprises a main blade 1, a hub 2 and a cover plate 3; the front side of the cover plate 3 is provided with a plurality of main blades 1, the hub 2 is fixedly sleeved with an installation lantern ring 4, the outer side wall of the installation lantern ring 4 is fixedly provided with back blades 5, the front side of the cover plate further comprises a stabilizing ring 7, and the outer ends of the back blades 5 are fixedly connected with the inner wall of the stabilizing ring 7. The rear side of the cover plate 3 is provided with a plurality of radial limiting grooves 31, one side of the part of the back blade 5 is embedded into the radial limiting grooves 31, the other side of the back blade 5 axially extends out of the radial limiting grooves 31, the cover plate 3 is provided with a shock pad 32, and the inner end of the mounting sleeve ring 4 is in contact with the shock pad 32. The inner end of the mounting lantern ring 4 is abutted against the cover plate 3 through the shock pad 32, and the outer end of the mounting lantern ring 4 is fixed through a threaded locking ring 8 sleeved on the hub 2. The side part of the hub 2 is provided with a limit key 21, the inner wall of the mounting lantern ring 4 is axially provided with a circumferential limit groove 41 for the limit key 21 to be matched, embedded and limited,
the installation mode is as follows: firstly, the mounting sleeve ring 4 is sleeved on the hub 2, so that the limiting key 21 on the hub 2 is matched and limited in the circumferential limiting groove 41, the inner end of the mounting sleeve ring 4 is abutted to the shock pad 32 on the cover plate 3, the inner side of the back blade 5 is embedded into the radial limiting groove 31, the outer side of the back blade 5 axially extends out of the radial limiting groove 31, the back blade 5 is in one-to-one correspondence with the radial limiting groove 31, and the back blade 5 is better in stability in the radial limiting groove 31 and is not easy to deform. The threaded locking ring 8 is then threaded onto the hub 2 to lock the mounting collar 4. The length of the back vane 5 extending out of the radial limiting groove 31 can be changed by changing the thickness of the shock absorption pad 32.
Example 2
As shown in fig. 2, a back-vane impeller for a coking process pump is different from embodiment 1 in that a mounting plate 6 is arranged outside a mounting collar 4, the inner end of a back vane 5 is fixed on the outer side wall of the mounting collar 4, part of the side end of the back vane 5 is fixed on the end surface of the mounting plate 6, a shock pad 32 is arranged on a cover plate 3, and the inner end of the mounting plate 6 is in contact with the shock pad 32.
The installation mode is as follows: firstly, the mounting disc 6 and the mounting sleeve ring 4 are sleeved on the hub 2, so that the limiting key 21 on the hub 2 is matched and limited in the circumferential limiting groove 41, the inner end of the mounting disc 6 is abutted to the shock absorption pad 32 on the cover plate 3, the inner side of the back blade 5 is embedded into the radial limiting groove 31, the outer side of the back blade 5 axially extends out of the radial limiting groove 31, the back blades 5 are in one-to-one correspondence with the radial limiting grooves 31, and the back blades 5 are better in stability in the radial limiting grooves 31 and are not easy to deform. The threaded locking ring 8 is then threaded onto the hub 2 to lock the mounting collar 4. The length of the back vane 5 extending out of the radial limiting groove 31 can be changed by changing the thickness of the shock absorption pad 32.
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (6)
1. A back blade impeller for a coking process pump is characterized by comprising a main blade (1), a hub (2) and a cover plate (3); apron (3) front side sets up a plurality of main blades (1), the installation lantern ring (4) is established to fixed the cover on wheel hub (2), fixed set up back of the body blade (5) on the lateral wall of installation lantern ring (4), apron (3) rear side sets up a plurality of radial spacing grooves (31), during partial one side of back of the body blade (5) is embedded into radial spacing groove (31), outside radial spacing groove (31) were stretched out to the opposite side axial, the installation lantern ring (4) inner with apron (3) butt, the outer end of installation lantern ring (4) is fixed through establishing screw locking ring (8) on wheel hub (2) through the cover.
2. The back blade impeller for the coking process pump is characterized in that a limiting key (21) is arranged at the side part of the hub (2), and a circumferential limiting groove (41) for the limiting key (21) to be matched, embedded and limited is axially formed in the inner wall of the mounting sleeve ring (4).
3. Back-vane impeller for a coking process pump according to claim 1, characterized in that the cover plate (3) is provided with a damping pad (32), the inner end of the mounting collar (4) being in contact with the damping pad (32).
4. Back vane impeller for a coking process pump according to claim 1, characterized in that the mounting collar (4) is externally provided with a mounting disc (6), the inner end of the back vane (5) is fixed on the outer side wall of the mounting collar (4), and part of the side end of the back vane (5) is fixed on the end face of the mounting disc (6).
5. Back-vane impeller for a coking process pump according to claim 4, characterized in that the cover plate (3) is provided with a damping pad (32), the inner end of the mounting plate (6) being in contact with the damping pad (32).
6. The back-vane impeller for the coking process pump according to claim 1, characterized by further comprising a stabilizing ring (7), wherein the outer ends of the back-vanes (5) are fixedly connected with the inner wall of the stabilizing ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122752497.0U CN216199216U (en) | 2021-11-11 | 2021-11-11 | Back blade impeller for coking process pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122752497.0U CN216199216U (en) | 2021-11-11 | 2021-11-11 | Back blade impeller for coking process pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216199216U true CN216199216U (en) | 2022-04-05 |
Family
ID=80909118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122752497.0U Active CN216199216U (en) | 2021-11-11 | 2021-11-11 | Back blade impeller for coking process pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216199216U (en) |
-
2021
- 2021-11-11 CN CN202122752497.0U patent/CN216199216U/en active Active
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