CN217055703U - Centrifugal pump - Google Patents
Centrifugal pump Download PDFInfo
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- CN217055703U CN217055703U CN202220800954.0U CN202220800954U CN217055703U CN 217055703 U CN217055703 U CN 217055703U CN 202220800954 U CN202220800954 U CN 202220800954U CN 217055703 U CN217055703 U CN 217055703U
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- inner tube
- centrifugal pump
- outer sleeve
- tube
- elastic
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Abstract
The utility model discloses a centrifugal pump, which comprises a pump body, the pump body is including fixed connection portion, fixed connection portion is connected with the compensation assembly, the compensation assembly is including inner tube and outer tube, the external diameter of inner tube is less than the internal diameter of outer tube, inner tube and outer tube are for cup jointing. When the centrifugal pump is connected, the compensation assembly can be connected with the fixed connection part of the centrifugal pump. Because the external diameter of the inner tube is less than the internal diameter of the outer sleeve, a certain clearance exists between the inner tube and the inner wall of the outer sleeve, when the centrifugal pump works to generate vibration, the centrifugal pump only drives the inner tube to shake, and because a certain clearance exists between the inner tube and the outer sleeve, the inner tube and the outer sleeve cannot be in direct contact, so that the collision is reduced, and the integral sealing performance of the centrifugal pump is improved.
Description
Technical Field
The utility model relates to a centrifugal pump technical field specifically is a centrifugal pump.
Background
A centrifugal pump is a pump that transports liquid by centrifugal force generated when an impeller rotates, and generates strong vibration when the impeller rotates. Most of the existing centrifugal pumps are rigidly connected, namely, the input end and the output end are rigidly connected with the fixed connection part of the centrifugal pump, so that the rigid connection part can be loosened to cause leakage under the vibration generated by long-time work of the centrifugal pump.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a centrifugal pump to solve the problem that proposes in the above-mentioned background art.
In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a centrifugal pump, includes the pump body, the pump body is including fixed connection portion, fixed connection portion is connected with the compensation subassembly, the compensation subassembly is including inner tube and outer tube, the external diameter of inner tube is less than the internal diameter of outer tube, inner tube and outer tube are for cup jointing. When the centrifugal pump is connected, the compensation assembly can be connected with the fixed connecting part of the centrifugal pump. Because the external diameter of inner tube is less than the internal diameter of outer tube, consequently there is certain clearance between the inner wall of inner tube and outer tube, and when centrifugal pump during operation produced vibrations, it can only drive the inner tube shake, and because there is certain clearance between inner tube and the outer tube, consequently inner tube and outer tube can not direct contact to this reduces the collision, thereby improves centrifugal pump whole sealing performance.
According to the technical scheme, the first connecting portion is installed at one end, facing the fixed connecting portion, of the inner tube, the second connecting portion is installed at one end, facing the first connecting portion, of the outer sleeve, a gap is reserved between the inner tube and the second connecting portion in the axial direction, and a gap is reserved between the outer sleeve and the first connecting portion in the axial direction.
According to the technical scheme, a first elastic part is arranged between the inner pipe and the second connecting part, one end of the first elastic part is fixed with the inner pipe, and the other end of the first elastic part is fixed with the second connecting part.
According to the technical scheme, an elastic part II is arranged between the connecting part I and the outer sleeve, one end of the elastic part II is fixed with the outer sleeve, the other end of the elastic part II is fixed with the connecting part I, and the inner wall of the outer sleeve and the outer wall of the inner pipe form a compensation cavity.
According to the technical scheme, a closing piece is arranged on one side of the outer sleeve, penetrates through the side wall of the outer sleeve and is communicated with the compensation cavity.
According to the technical scheme, the outer wall of the inner pipe is fixedly provided with a plurality of elastic pieces, and the elastic pieces are fixedly connected with the inner wall of the outer sleeve.
Compared with the prior art, the utility model discloses the beneficial effect who reaches is: through being provided with the compensating assembly, when the centrifugal pump is connected, can be connected the fixed connection portion of compensating assembly and centrifugal pump. Because the external diameter of inner tube is less than the internal diameter of outer tube, consequently there is certain clearance between the inner wall of inner tube and outer tube, and when centrifugal pump during operation produced vibrations, it can only drive the inner tube shake, and because there is certain clearance between inner tube and the outer tube, consequently inner tube and outer tube can not direct contact to this reduces the collision, thereby improves centrifugal pump whole sealing performance.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the overall front structure of the present invention;
fig. 2 is a schematic cross-sectional structural view of the compensation assembly of the present invention;
in the figure: 1. a pump body; 2. a fixed connection portion; 3. a compensation component; 4. a first connecting part; 5. a second connecting part; 6. an inner tube; 7. an outer sleeve; 8. a first elastic part; 9. a second elastic piece; 10. a compensation chamber; 11. an elastic member; 12. and (6) closing the piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a centrifugal pump, includes the pump body 1, and pump body 1 is including fixed connection portion 2, and fixed connection portion 2 is connected with compensation assembly 3, and compensation assembly 3 is including inner tube 6 and outer tube 7, and the external diameter of inner tube 6 is less than the internal diameter of outer tube 7, and inner tube 6 and outer tube 7 are for cup jointing. A first connecting portion 4 is installed at one end, facing the fixed connecting portion 2, of the inner tube 6, a second connecting portion 5 is installed at one end, far away from the first connecting portion 4, of the outer sleeve 7, a gap is reserved between the inner tube 6 and the second connecting portion 5 in the axial direction, and a gap is reserved between the outer sleeve 7 and the first connecting portion 4 in the axial direction. A plurality of elastic pieces 11 are fixedly arranged on the outer wall of the inner pipe 6, and the elastic pieces 11 are fixedly connected with the inner wall of the outer sleeve 7. The elastic member 11 may be a spring, a cylinder, or other elastic members with supporting function.
An elastic piece I8 is arranged between the inner tube 6 and the connecting part II 5, one end of the elastic piece I8 is fixed with the inner tube 6, and the other end of the elastic piece I8 is fixed with the connecting part II 5. An elastic part II 9 is arranged between the connecting part I4 and the outer sleeve 7, one end of the elastic part II 9 is fixed with the outer sleeve 7, the other end of the elastic part II 9 is fixed with the connecting part I4, and the inner wall of the outer sleeve 7 and the outer wall of the inner tube 6 form a compensation cavity 10.
One side of the outer sleeve 7 is provided with a closure 12, which closure 12 extends through the side wall of the outer sleeve 7 and communicates with the compensation chamber 10. The closing elements 12 are closing bolts and the interior of the compensation chamber 10 is filled with a compensation medium. The compensating medium can be inert gas, oil-gas mixture gas, non-Newtonian fluid and the like.
The working principle is as follows: when the centrifugal pump 1 needs to be connected with the outside, the first connecting part 4 can be fixedly connected with the fixed connecting part 2, and then the second connecting part 5 can be fixedly connected with the outside, and the outside can input or output the centrifugal pump 1 through the inner pipe 6.
When the centrifugal pump 1 vibrates during operation, the centrifugal pump can drive the inner pipe 6 fixedly connected with the centrifugal pump 1 to shake together, and in the process, the outer sleeve 7 is fixedly connected with external equipment through the second connecting part 5. When the inner tube 6 shakes, the vibration kinetic energy of the inner tube is firstly absorbed and buffered by each elastic part 11, and secondly, because the outer diameter of the inner tube 6 is smaller than the inner diameter of the outer sleeve 7, a gap is left between the inner tube 6 and the outer sleeve 7 so as to meet the deviation when the inner tube 6 shakes, and the inner tube cannot directly impact the outer sleeve 7.
And in the process, the closing element 12 can also be opened to fill the compensation chamber 10 with a compensation medium, which can further counteract the vibrations of the inner tube 6. Therefore, the accidental leakage caused by the vibration generated by the operation of the centrifugal pump 1 can be reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A centrifugal pump comprising a pump body (1), characterized in that: the pump body (1) is including fixed connection portion (2), fixed connection portion (2) are connected with compensation assembly (3), compensation assembly (3) are including inner tube (6) and outer tube (7), the external diameter of inner tube (6) is less than the internal diameter of outer tube (7), inner tube (6) and outer tube (7) are for cup jointing.
2. A centrifugal pump according to claim 1, characterized in that: connecting portion (4) are installed towards the one end of fixed connection portion (2) in inner tube (6), connecting portion two (5) are installed to the one end that connecting portion (4) were kept away from in outer tube (7), leave the clearance between inner tube (6) and connecting portion two (5) axial, leave the clearance between outer tube (7) axial and connecting portion (4).
3. A centrifugal pump according to claim 2, characterized in that: an elastic piece I (8) is arranged between the inner tube (6) and the connecting part II (5), one end of the elastic piece I (8) is fixed with the inner tube (6), and the other end of the elastic piece I (8) is fixed with the connecting part II (5).
4. A centrifugal pump according to claim 2, characterized in that: an elastic part II (9) is arranged between the connecting part I (4) and the outer sleeve (7), one end of the elastic part II (9) is fixed with the outer sleeve (7), the other end of the elastic part II (9) is fixed with the connecting part I (4), and the inner wall of the outer sleeve (7) and the outer wall of the inner tube (6) form a compensation cavity (10).
5. A centrifugal pump according to claim 4, characterized in that: and a closing piece (12) is arranged on one side of the outer sleeve (7), and the closing piece (12) penetrates through the side wall of the outer sleeve (7) and is communicated with the compensation cavity (10).
6. A centrifugal pump according to claim 2, characterized in that: a plurality of elastic pieces (11) are fixedly mounted on the outer wall of the inner pipe (6), and the elastic pieces (11) are fixedly connected with the inner wall of the outer sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220800954.0U CN217055703U (en) | 2022-04-07 | 2022-04-07 | Centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220800954.0U CN217055703U (en) | 2022-04-07 | 2022-04-07 | Centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217055703U true CN217055703U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220800954.0U Active CN217055703U (en) | 2022-04-07 | 2022-04-07 | Centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217055703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116658460A (en) * | 2023-07-13 | 2023-08-29 | 高邑县浩瀚金属制品有限公司 | Pump shell and pump based on fluid energy absorption buffer |
-
2022
- 2022-04-07 CN CN202220800954.0U patent/CN217055703U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116658460A (en) * | 2023-07-13 | 2023-08-29 | 高邑县浩瀚金属制品有限公司 | Pump shell and pump based on fluid energy absorption buffer |
| CN116658460B (en) * | 2023-07-13 | 2023-09-22 | 高邑县浩瀚金属制品有限公司 | Pump shell and pump based on fluid energy absorption buffer |
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