CN210715302U - Multistage centrifugal pump balance disc - Google Patents
Multistage centrifugal pump balance disc Download PDFInfo
- Publication number
- CN210715302U CN210715302U CN201921717233.8U CN201921717233U CN210715302U CN 210715302 U CN210715302 U CN 210715302U CN 201921717233 U CN201921717233 U CN 201921717233U CN 210715302 U CN210715302 U CN 210715302U
- Authority
- CN
- China
- Prior art keywords
- balance disc
- balance
- centrifugal pump
- disc
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000037250 Clearance Effects 0.000 abstract description 4
- 230000035512 clearance Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002035 prolonged Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
Abstract
The utility model provides a multistage centrifugal pump balance disc, includes balance disc, characterized by: the balance disc is arranged on the threaded connecting shaft sleeve, one end of the balance disc is fixedly connected with a balance disc lining ring through a bolt, and a balance disc lining is arranged on the outer wall of the balance disc; the balance disc bushing is arranged in the packing box body, the packing box body is fixedly arranged on a centrifugal pump shell through bolts, a balance ring is fixedly arranged on the centrifugal pump shell, and the balance ring is in contact with the balance disc bushing. By adopting the structure, the clearance between the balance disc and the balance ring can be adjusted under the condition of no disassembly, the safety threshold of the pump is improved, and the normal use of the pump is guaranteed.
Description
Technical Field
The utility model relates to a centrifugal pump field, especially a multistage centrifugal pump balance disc.
Background
The balance disc of the multistage centrifugal pump and the shaft sleeve at the packing part are all quick-wear parts. After the abrasion of the balance disc exceeds the abrasion loss, the multistage centrifugal pump cannot work normally. After the shaft sleeve at the packing part is worn, the leakage of the multi-stage pump is increased, and even the sealing performance of the multi-stage centrifugal pump is poor, and the pump cannot be started by vacuumizing.
At present, after a balance disc and a shaft sleeve are abraded, only new parts can be replaced after the balance disc and the shaft sleeve are completely disassembled, and the multistage centrifugal pump can normally operate. However, many pumps are inconvenient to disassemble and long in disassembly and re-assembly period.
Disclosure of Invention
The utility model aims to solve the technical problem that a multistage centrifugal pump balance plate is provided, it can realize the clearance adjustment between balance plate and the gimbal under the condition of not dismouting, improves the safety threshold value of pump, ensures the normal use of pump.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a multistage centrifugal pump balance disc, includes balance disc, characterized by: the balance disc is arranged on the threaded connecting shaft sleeve, one end of the balance disc is fixedly connected with a balance disc lining ring through a bolt, and a balance disc lining is arranged on the outer wall of the balance disc;
the balance disc bushing is arranged in the stuffing box body, the stuffing box body is fixedly arranged on a centrifugal pump shell through bolts, a balance ring is fixedly arranged on the centrifugal pump shell, and the balance ring is in contact with the balance disc bushing.
In a preferred scheme, the balance disc bushing is arranged on the balance disc through threads in the opposite rotation direction of the pump shaft of the centrifugal pump.
In a preferable scheme, the balance disc is arranged on the threaded connecting sleeve through a thread which is the same as the pump shaft of the centrifugal pump in the rotating direction.
In the preferred scheme, a nut is further arranged on the threaded connecting shaft sleeve, the nut is arranged on the threaded connecting shaft sleeve through a thread which is opposite to the rotation direction of the pump shaft of the centrifugal pump in the rotating direction, and the nut is tightly attached to one end, away from the lining ring of the balance disc, of the balance disc.
In a preferable scheme, O-shaped ring seals are arranged between the balance disc and the threaded connection shaft sleeve and between the balance disc and the balance disc bushing.
The utility model provides a multistage centrifugal pump balance disc through adopting above-mentioned structure, has following beneficial effect:
(1) according to the abrasion condition, under the condition that the assembly is not disassembled, the gap between the lining ring of the balance disc and the balance ring can be adjusted by rotating the balance disc, so that the tight connection between the lining ring of the balance disc and the balance ring is ensured, the abrasion amount of the pump is greatly improved, and the service life of the balance disc is prolonged;
(2) in the normal operation process, the balance disc can be effectively limited through the nut, and the condition of clearance caused by the movement of the balance disc on the threaded connecting shaft sleeve is avoided;
(3) the O-shaped ring between the components is sealed to achieve a good anti-leakage effect.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic sectional view of the present invention.
In the figure: balance ring 1, O type circle is sealed 2, balance plate backing ring 3, balance plate 4, balance plate bush 5, threaded connection axle sleeve 6, nut 7, packing box body 8, centrifugal pump casing 9.
Detailed Description
As shown in fig. 1, the balance disc of the multistage centrifugal pump comprises a balance disc 4, wherein the balance disc 4 is arranged on a threaded connection shaft sleeve 6, one end of the balance disc 4 is fixedly connected with a balance disc lining ring 3 through a bolt, and a balance disc lining 5 is arranged on the outer wall of the balance disc 4;
balance disc bush 5 set up in packing letter body 8, packing letter body 8 passes through the fixed setting of bolt on centrifugal pump housing 9, fixed being equipped with compensating ring 1 on centrifugal pump housing 9, compensating ring 1 and the contact setting of balance disc bush ring 3.
In a preferred scheme, the balance disc bushing 5 is arranged on the balance disc 4 through threads opposite to the rotation direction of a pump shaft of the centrifugal pump.
In a preferred scheme, the balance disc 4 is arranged on the threaded connection shaft sleeve 6 through threads which are in the same rotating direction as the pump shaft of the centrifugal pump.
In a preferable scheme, a nut 7 is further arranged on the threaded connection shaft sleeve 6, the nut 7 is arranged on the threaded connection shaft sleeve 6 through a thread opposite to the rotation direction of the pump shaft of the centrifugal pump, and the nut 7 is tightly attached to one end, far away from the balance disc lining ring 3, of the balance disc 4.
In a preferable scheme, O-shaped ring seals 2 are arranged between the balance disc 4 and the threaded connection shaft sleeve 6 and between the balance disc 4 and the balance disc bushing 5.
The principle of the device is as follows:
as shown in fig. 1, the nut 7 is rotated to move the nut 7 horizontally to the right on the threaded connection shaft sleeve 6 and separate from the balance disc 4, then the balance disc 4 is rotated to adjust the gap between the balance disc lining ring 3 and the balance ring 1, thereby achieving the sealing purpose, and in the operation process of the pump, due to the existence of the nut 7, the balance disc 4 is tightly jacked, and the horizontal movement cannot occur.
When the balance disc lining ring 3 and the balance disc lining 5 are worn and need to be replaced, the balance disc lining ring and the balance disc lining ring can be detached separately and replaced, and the balance disc 4 can be used repeatedly.
By adopting the structure, the gap between the lining ring of the balance disc and the balance ring can be adjusted by rotating the balance disc under the condition of not disassembling the assembly according to the abrasion condition, so that the tight connection between the lining ring of the balance disc and the balance ring is ensured, the abrasion amount of the pump is greatly improved, and the service life of the balance disc is prolonged; in the normal operation process, the balance disc can be effectively limited through the nut, and the condition of clearance caused by the movement of the balance disc on the threaded connecting shaft sleeve is avoided; the O-shaped ring between the components is sealed to achieve a good anti-leakage effect.
Claims (5)
1. A multistage centrifugal pump balance disc comprises a balance disc (4) and is characterized in that: the balance disc (4) is arranged on the threaded connection shaft sleeve (6), one end of the balance disc (4) is fixedly connected with a balance disc lining ring (3) through a bolt, and a balance disc lining sleeve (5) is arranged on the outer wall of the balance disc (4);
balance disc bush (5) set up in packing letter body (8), pack letter body (8) and pass through the bolt fastening and set up on centrifugal pump casing (9), fixed balance ring (1) that is equipped with on centrifugal pump casing (9), balance ring (1) and balance disc liner ring (3) contact setting.
2. A multistage centrifugal pump balance disc according to claim 1, wherein: the balance disc bushing (5) is arranged on the balance disc (4) through a thread opposite to the pump shaft rotation direction of the centrifugal pump.
3. A multistage centrifugal pump balance disc according to claim 1, wherein: the balance disc (4) is arranged on the threaded connection shaft sleeve (6) through threads which are the same as the pump shaft of the centrifugal pump in the rotating direction.
4. A multistage centrifugal pump balance disc according to claim 1, wherein: the screw thread connecting shaft sleeve (6) is further provided with a nut (7), the nut (7) is arranged on the screw thread connecting shaft sleeve (6) through a screw thread opposite to the rotation direction of a pump shaft of the centrifugal pump, and the nut (7) is tightly attached to one end, away from the balance disc lining ring (3), of the balance disc (4).
5. A multistage centrifugal pump balance disc according to claim 1, wherein: o-shaped ring seals (2) are arranged between the balance disc (4) and the threaded connection shaft sleeve (6) and between the balance disc (4) and the balance disc bushing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921717233.8U CN210715302U (en) | 2019-10-14 | 2019-10-14 | Multistage centrifugal pump balance disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921717233.8U CN210715302U (en) | 2019-10-14 | 2019-10-14 | Multistage centrifugal pump balance disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210715302U true CN210715302U (en) | 2020-06-09 |
Family
ID=70965401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921717233.8U Active CN210715302U (en) | 2019-10-14 | 2019-10-14 | Multistage centrifugal pump balance disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210715302U (en) |
-
2019
- 2019-10-14 CN CN201921717233.8U patent/CN210715302U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1235950A (en) | Slurry pump mechanical seal mounting assembly | |
| US2258527A (en) | Centrifugal pump | |
| CN210715302U (en) | Multistage centrifugal pump balance disc | |
| CN201486931U (en) | External mechanical sealing device | |
| CN106246603B (en) | A kind of water pump | |
| CN104454550A (en) | Gap adjustable type centrifugal pump | |
| CN204805102U (en) | Novel structure mortar pump | |
| CN204476840U (en) | Metal horizontal centrifugal pump | |
| CN207621031U (en) | A kind of single-stage cantilever centrifugal pump | |
| CN208619370U (en) | A kind of twin pipe circle pump | |
| CN208487054U (en) | Pump more mechanical seal quick replacement devices | |
| CN203176359U (en) | Improved adjustable ship shafting front sealing device | |
| CN213392701U (en) | High-temperature high-pressure wear-resistant centrifugal pump | |
| CN209294122U (en) | A kind of centrifugal pump half-opened impeller | |
| CN201031764Y (en) | Hydroturbine chief axis non-contact type metallic sealing structure | |
| CN217652952U (en) | Single suction centrifugal pump capable of self-balancing axial force | |
| CN211647972U (en) | Rotary joint for horizontal directional drilling machine and horizontal directional drilling machine | |
| CN105065286B (en) | Mortar pump | |
| CN210977899U (en) | Pipeline process pump | |
| CN204511955U (en) | A kind of titanium plate welding chlorine blower fan | |
| CN204253373U (en) | A kind of clearance adjustable type centrifugal pump | |
| CN214269050U (en) | Reduce disk feeder that axle head leaks powder | |
| CN214661036U (en) | Novel stuffing box | |
| CN209758306U (en) | Wear-resisting lining plate device of dehydration spiral inner shell | |
| CN209815177U (en) | High-stability impeller feeder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |