CN216142959U - Leak-proof device for improving pump efficiency - Google Patents
Leak-proof device for improving pump efficiency Download PDFInfo
- Publication number
- CN216142959U CN216142959U CN202121880019.1U CN202121880019U CN216142959U CN 216142959 U CN216142959 U CN 216142959U CN 202121880019 U CN202121880019 U CN 202121880019U CN 216142959 U CN216142959 U CN 216142959U
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- Prior art keywords
- ring
- pump body
- spring
- seat
- static
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- 230000003068 static effect Effects 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 230000002265 prevention Effects 0.000 claims 6
- 239000007788 liquid Substances 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
- F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to the technical field of pump body sealing, in particular to a leakage-proof device for improving the pump efficiency, which is characterized by comprising a static ring component and a dynamic ring component which are arranged between a pump body and an impeller opening ring gap; the static ring component is arranged on the pump body; the movable ring assembly is arranged on the impeller opening ring and synchronously rotates along with the impeller opening ring; the static ring component is in contact connection with the dynamic ring component, so that a gap between the pump body and the impeller opening ring is sealed. The device can seal the gap between the pump body and the impeller opening ring, and is simple in structure and easy to replace and maintain.
Description
Technical Field
The utility model relates to the technical field of pump body sealing, in particular to a leakage-proof device for improving pump efficiency.
Background
Currently, in the pump body, work is done on the liquid passing through the impeller by inputting hydraulic power, because the pressure of the liquid at the outlet of the impeller is higher than the inlet pressure. The pressure differential between the outlet and the inlet causes a portion of the liquid passing through the impeller to flow from the pump chamber back toward the impeller inlet through the gap between the pump body and the impeller eye. The theoretical flow through the impeller is therefore not all the way to the pump outlet, and this is a leakage which is a loss of volume. The pump with more volume loss has low efficiency and larger power, and consumes more energy. If the pumped liquid has high viscosity, the gap between the pump body and the impeller opening ring can be blocked, so that the machine pump can be failed, and the normal operation of the machine pump is influenced. To reduce energy consumption and improve efficiency. Therefore, there is an urgent need for improvement of the conventional orifice ring.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a leakage-proof device for improving the pump efficiency, which not only can seal the gap between the pump body and the impeller opening ring, but also has simple structure and is easy to replace and maintain.
In order to achieve the purpose, the utility model adopts the following technical scheme that:
a leakage-proof device for improving the pump efficiency is characterized by comprising a static ring component and a dynamic ring component which are arranged between a pump body and an impeller opening ring gap; the static ring component is arranged on the pump body; the movable ring assembly is arranged on the impeller opening ring and synchronously rotates along with the impeller opening ring; the static ring component is in contact connection with the dynamic ring component, so that a gap between the pump body and the impeller opening ring is sealed.
Preferably, the stationary ring assembly comprises a connecting bolt, a stationary ring seat and a stationary ring; the static ring seat is fixedly connected with the pump body through a connecting bolt, and the static ring is in interference fit with the static ring seat.
Preferably, the movable ring assembly comprises a movable ring, a spring and a spring seat; one end of the movable ring is in contact connection with the fixed ring, and the other end of the movable ring is in embedded connection with the left end of the spring seat and can slide along the axis in the spring seat; the right end of the spring seat is connected with the impeller port ring; the spring is arranged in the spring seat, one end of the spring is connected with the movable ring, and the other end of the spring is connected with the spring seat.
Preferably, the device also comprises a static ring sealing ring; a groove is arranged on the contact connection surface of the stationary ring seat and the pump body; the static ring sealing ring is arranged in the groove.
Preferably, the device also comprises a moving ring sealing ring; the movable ring is provided with a notch; the notch is opposite to the impeller opening ring; the movable ring sealing ring is arranged in the notch.
Preferably, the anti-rotation device further comprises an anti-rotation pin; the anti-rotation pin is arranged at the joint of the spring seat and the impeller opening ring.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the utility model arranges the static ring seat, the static ring, the dynamic ring, the spring and the spring seat and arranges the static ring seat, the dynamic ring, the spring and the spring seat between the pump body and the gap of the impeller opening ring; the compensation function is exerted through the expansion of the spring, so that the movable ring and the static ring are always abutted, and the gap between the pump body and the impeller opening ring is sealed. The liquid is prevented from flowing back to the impeller inlet from the pump cavity through the gap between the pump body and the impeller opening ring, leakage is avoided, energy consumption of the pump body is reduced, and the service efficiency of the pump is improved.
(2) The static ring is arranged in the static ring seat in an interference fit manner, so that the static ring seat is simple in structure and easy to assemble and disassemble, and when the static ring is excessively worn, the static ring seat is convenient to replace, and the maintenance cost of the pump body is reduced.
(3) According to the utility model, the static ring sealing ring and the dynamic ring sealing ring are arranged, so that the sealing performance between the static ring seat and the pump body and between the dynamic ring and the impeller opening ring is enhanced, and the sealing effect of the device is improved.
(4) The spring is protected by the spring seat, so that the spring cannot contact liquid conveyed in the pump body. Not only can the phenomenon that the spring fails because of high-viscosity liquid or impurities and the like be avoided, but also the stability of the device is improved, and the service life of the device is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
The actual correspondence between each label and the part name of the utility model is as follows:
10-Pump body
21-connecting bolt 22-stationary ring seat 23-stationary ring sealing ring 24-stationary ring
31-rotating ring 32-spring 33-spring seat 34-anti-rotation pin 35-rotating ring sealing ring
40-impeller eye
Detailed Description
For ease of understanding, the specific construction and operation of the utility model is described further herein as follows:
a leak-proof apparatus for improving pump efficiency as shown in fig. 1, comprises a stationary ring assembly and a moving ring assembly disposed between a gap between a pump body 10 and an impeller eye 40; the static ring component is arranged on the pump body 10; the moving ring assembly is arranged on the impeller opening ring 40 and synchronously rotates along with the impeller opening ring 40; the stationary ring assembly is in contact connection with the moving ring assembly, so that a gap between the pump body 10 and the impeller eye 40 is sealed.
The stationary ring assembly is composed of a connecting bolt 21, a stationary ring seat 22 and a stationary ring 24. The stationary ring seat 22 is fixedly connected with the pump body 10 through the connecting bolt 21 and forms an integral structure with the pump body 10, and the stationary ring 24 is hot-mounted in the stationary ring seat 22 through interference fit, and the interference fit adopts H7/u 6. Replacement is facilitated when the stationary ring 24 is excessively worn.
The movable ring assembly is composed of a movable ring 31, a spring 32 and a spring seat 33. One end of the movable ring 31 is in contact connection with the fixed ring 24, and the fixed ring 24 and the movable ring 31 are matched together to form a sealing end face. The processing requirements of the sealing end face are as follows: the roughness was 0.2, the perpendicularity was 0.015, and the flatness was 0.0009.
The other end of the rotating ring 31 is connected with the left end of the spring seat 33 in a snap-fit manner and can slide along the axis in the spring seat 33, and the right end of the spring seat 33 is connected with the impeller opening ring 40 through the anti-rotation pin 34.
The spring 32 is arranged in the spring seat 33, and two ends of the spring 32 are respectively connected with the movable ring 31 and the spring seat 33, so that the spring 32 has a compensation function on the movable ring 31 all the time through expansion and contraction, and can be tightly attached to the static ring 24 to form contact connection.
Still include quiet ring seal 23, be provided with the recess on the contact connection face of quiet ring seat 22 and the pump body 10, quiet ring seal 23 is installed in the recess to the leakproofness between quiet ring seat 22 and the pump body 10 has been promoted.
The impeller structure further comprises a moving ring sealing ring 35, a notch is formed in the moving ring 31 and is opposite to the impeller opening ring 40, and the moving ring sealing ring 35 is installed in the notch, so that the sealing performance between the moving ring 31 and the impeller opening ring 40 is improved.
The utility model is not to be considered as limited to the particular embodiments shown, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Such conventional modifications are intended to be included within the scope of the present invention.
Claims (6)
1. A leak prevention apparatus for improving pump efficiency, comprising a stationary ring assembly and a moving ring assembly disposed between a gap between a pump body (10) and an impeller eye (40); the static ring component is arranged on the pump body (10); the movable ring component is arranged on the impeller opening ring (40) and synchronously rotates along with the impeller opening ring (40); the static ring assembly is in contact connection with the dynamic ring assembly, so that a gap between the pump body (10) and the impeller opening ring (40) is sealed.
2. A leak prevention apparatus for improving pump efficiency as defined in claim 1 wherein said stationary ring assembly comprises a connecting bolt (21), a stationary ring seat (22) and a stationary ring (24); the static ring seat (22) is fixedly connected with the pump body (10) through a connecting bolt (21), and the static ring (24) is in interference fit with the static ring seat (22).
3. A leak prevention apparatus for improving pump efficiency as defined in claim 2 wherein said rotating ring assembly comprises a rotating ring (31), a spring (32) and a spring seat (33); one end of the movable ring (31) is in contact connection with the fixed ring (24), and the other end of the movable ring is in embedded connection with the left end of the spring seat (33) and can slide along the axis in the spring seat (33); the right end of the spring seat (33) is connected with the impeller opening ring (40); the spring (32) is arranged in the spring seat (33), one end of the spring is connected with the movable ring (31), and the other end of the spring is connected with the spring seat (33).
4. A leak prevention apparatus for improving pump efficiency as defined in claim 3 further comprising a stationary ring seal (23); a groove is arranged on the contact connection surface of the static ring seat (22) and the pump body (10); the static ring sealing ring (23) is arranged in the groove.
5. A leak prevention apparatus for improving pump efficiency as defined in claim 4 further comprising a dynamic ring seal (35); a notch is arranged on the movable ring (31); the notch is opposite to the impeller opening ring (40); the movable ring sealing ring (35) is arranged in the notch.
6. A leak prevention apparatus to improve pump efficiency as defined in claim 5 further comprising anti-rotation pins (34); the anti-rotation pin (34) is arranged at the joint of the spring seat (33) and the impeller opening ring (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121880019.1U CN216142959U (en) | 2021-08-11 | 2021-08-11 | Leak-proof device for improving pump efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121880019.1U CN216142959U (en) | 2021-08-11 | 2021-08-11 | Leak-proof device for improving pump efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216142959U true CN216142959U (en) | 2022-03-29 |
Family
ID=80805683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121880019.1U Active CN216142959U (en) | 2021-08-11 | 2021-08-11 | Leak-proof device for improving pump efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216142959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738311A (en) * | 2022-05-27 | 2022-07-12 | 江苏大学 | Non-leakage centrifugal pump |
-
2021
- 2021-08-11 CN CN202121880019.1U patent/CN216142959U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738311A (en) * | 2022-05-27 | 2022-07-12 | 江苏大学 | Non-leakage centrifugal pump |
| CN114738311B (en) * | 2022-05-27 | 2024-06-07 | 江苏大学 | Leakless centrifugal pump |
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