CN215633783U - Single-stage double-suction centrifugal pump with flow stabilizing mechanism - Google Patents
Single-stage double-suction centrifugal pump with flow stabilizing mechanism Download PDFInfo
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- CN215633783U CN215633783U CN202121557830.6U CN202121557830U CN215633783U CN 215633783 U CN215633783 U CN 215633783U CN 202121557830 U CN202121557830 U CN 202121557830U CN 215633783 U CN215633783 U CN 215633783U
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- stabilizing mechanism
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Abstract
The utility model relates to a single-stage double-suction centrifugal pump with a flow stabilizing mechanism, which comprises a pump shell body and a pump shaft assembled in the pump shell body, wherein an impeller is arranged on the pump shaft, a water inlet pipe body and a water outlet pipe body are arranged on the pump shell body, and a flow guide plate for stabilizing the flow state of fluid flowing through the water inlet pipe body is arranged in the water inlet pipe body. The utility model provides the scheme that the guide plate is arranged in the water inlet pipe of the pump body, liquid is guided by the guide plate and enters the impeller in a more stable flow state, and energy consumption caused by unstable liquid flow is reduced, so that the efficiency of the single-stage double-suction centrifugal pump is improved by 2-3%.
Description
Technical Field
The utility model relates to the field of pump production, in particular to a single-stage double-suction centrifugal pump with a flow stabilizing mechanism.
Background
The single-stage double-suction centrifugal pump with the flow stabilizing mechanism is general mechanical equipment widely applied to various fields, is mainly driven by a motor, so the power consumption is large, and according to the statistics of the society of general mechanical industry, the power consumption of a water pump accounts for about 20 percent of the total power generation capacity of China; the efficiency of the water pump is an important technical and economic index for measuring the working efficiency, the energy consumption can be effectively reduced by improving the efficiency of the water pump, and the purposes of energy conservation and emission reduction are achieved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a single-stage double-suction centrifugal pump with a flow stabilizing mechanism, which can improve the performance of the single-stage double-suction centrifugal pump with the flow stabilizing mechanism.
The utility model provides a single-stage double entry centrifugal pump with stationary flow mechanism which characterized in that: the impeller-type pump comprises a pump shell body and a pump shaft assembled in the pump shell body, wherein an impeller is arranged on the pump shaft, a water inlet pipe body and a water outlet pipe body are arranged on the pump shell body, and a flow stabilizing mechanism used for stabilizing the flow state of fluid flowing through the water inlet pipe body is arranged in the water inlet pipe body.
The specific scheme is as follows: the flow stabilizing mechanism comprises a guide plate arranged in the water inlet pipe body.
The surface of the guide plate is vertically arranged.
The upper and lower parts of the guide plate are respectively fixedly connected with the inner pipe wall of the water inlet pipe body.
One side of the guide plate, which is far away from the extrusion chamber in the pump shell body, is recorded as an A side edge, one side of the guide plate, which is close to the extrusion chamber in the pump shell body, is recorded as a B side edge, and the A side edge and the water inlet end of the water inlet pipe body are arranged at intervals.
The distance between the side edge A of the guide plate and the water inlet end of the water inlet pipe body is marked as D, and D belongs to (20 mm and 30 mm).
The side B of the guide plate extends to the outer side wall of the extrusion chamber in the pump shell body.
The shape of the side B of the guide plate is consistent with the outline shape of the joint of the water inlet pipe body and the outer side wall of the extrusion chamber.
The thickness of the guide plate is not less than 10mm and not more than the thickness of the pump body.
The pump case body is formed by assembling an upper pump case and a lower pump case, the inner cavity of the pump case body is divided into two suction chambers and one extrusion chamber, pump shafts on two outer sides of an impeller are respectively provided with a mechanical seal shaft sleeve, the mechanical seal shaft sleeve and the pump case body are hermetically assembled through mechanical seal, two ends of the pump shaft are respectively assembled on the pump case body through A, B bearing assemblies, a bearing retaining sleeve is respectively arranged on the pump shaft body between a A, B bearing assembly and the mechanical seal shaft sleeve, a pump cover is arranged on the upper pump case and is hermetically assembled with the upper pump case through a sealing ring, an outflow port is arranged on the pump cover and is connected with an A water inlet on a mechanical seal flushing water return pipe assembly, two A water outlets are arranged on the mechanical seal flushing water return pipe assembly and respectively correspond to the two mechanical seal arrangements and flush the two A water outlets.
The utility model provides the scheme that the guide plate is arranged in the water inlet pipe of the pump body, liquid is guided by the guide plate and enters the impeller in a more stable flow state, and energy consumption caused by unstable liquid flow is reduced, so that the efficiency of the single-stage double-suction centrifugal pump is improved by 2-3%.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a side view of FIG. 1;
FIG. 4 is a schematic structural view of the lower pump casing;
fig. 5 is a schematic view of a baffle configuration.
The reference numbers and component correspondences are as follows:
100-impeller, 101-suction chamber, 102-extrusion chamber, 111-lower pump shell, 112-upper pump shell, 113-pump cover, 114-pump shaft, 115-mechanical seal flushing water return pipe component, 116-mechanical seal shaft sleeve, 117-mechanical seal, 118-sealing ring, 119-A bearing assembly, 120-B bearing assembly, 121-bearing retaining sleeve, 210-water inlet pipe body, 211-guide plate and 220-water outlet pipe body.
Detailed Description
In order that the objects and advantages of the utility model will be more clearly understood, the utility model will now be described in detail with reference to the following examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the utility model and does not strictly limit the scope of the utility model as specifically claimed.
As shown in fig. 1, 2, 3, 4, and 5, a single-stage double-suction centrifugal pump with a flow stabilizer includes a pump casing body and a pump shaft 114 assembled in the pump casing body, wherein an impeller 100 is disposed on the pump shaft 114, a water inlet pipe body 210 and a water outlet pipe body 220 are disposed on the pump casing body, and the flow stabilizer for stabilizing a flow state of a fluid flowing through the water inlet pipe body 210 is disposed in the water inlet pipe body 210.
The specific scheme is as follows: the flow stabilizing mechanism comprises a guide plate 211 arranged in the water inlet pipe body 210. The plate surface of the baffle 211 is arranged upright. The upper and lower sides of the baffle 211 are fixed to the inner wall of the water inlet pipe 210, and the shape of the upper and lower sides of the baffle 211 is consistent with the shape of the water inlet pipe 210. The side of the guide plate 211 far away from the extrusion chamber 102 in the pump shell body is marked as side A, the side of the guide plate 211 close to the extrusion chamber 102 in the pump shell body is marked as side B, and the side A and the water inlet end of the water inlet pipe body 210 are arranged at intervals. The distance between the side edge A of the guide plate 211 and the water inlet end of the water inlet pipe body 210 is marked as D, and the distance D belongs to the element (20 mm and 30 mm). The water inlet end of the water inlet pipe body 210 is an inlet flange, and the guide plate 211 is too close to the inlet flange, so that the processing of the flange surface and the assembly of a pipeline and a single-stage double-suction centrifugal pump are influenced; the guide plate 211 is too far away from the inlet flange face, the length of the guide plate 211 is reduced, and the guide effect is influenced. The B side of the baffle 211 extends to the outer side wall of the extrusion chamber 102 in the pump housing body. The shape of the B side of the baffle 211 conforms to the contour of the junction of the inlet body 210 and the exterior sidewall of the extrusion chamber 102. The thickness of the guide plate 211 is not less than 10mm and not more than the thickness of the pump body wall. The thickness of the guide plate 211 is too small, the guide plate 211 is not firmly combined with the pump body, and the strength of the plate body is not enough; the thickness is too big, and pump body import space is blocked up long-pending, influences water pump flow.
The pump casing body is assembled by an upper pump casing 112 and a lower pump casing 111, the inner cavity of the pump casing body is divided into two suction chambers 101 and an extrusion chamber 102, pump shafts 114 on two outer sides of the impeller 100 are respectively provided with a mechanical seal shaft sleeve 116, the mechanical seal shaft sleeve 116 and the pump casing body are hermetically assembled through a mechanical seal 117, two ends of the pump shaft 114 are respectively assembled on the pump casing body through A, B bearing assemblies, A, the shaft body of the pump shaft 114 between the bearing assemblies 119 and 120 and the mechanical seal shaft sleeve 116 is respectively provided with a bearing retaining sleeve 121, the upper pump shell 112 is provided with a pump cover 113, the pump cover 113 is hermetically assembled with the upper pump shell 112 through a sealing ring 118, the pump cover 113 is provided with an outflow port, the outflow port is connected with an A water inlet on the mechanical seal flushing water return pipe assembly 115, the mechanical seal flushing water return pipe assembly 115 is provided with two A water outlets, and the two A water outlets are respectively arranged corresponding to the two mechanical seals 117 and flush the mechanical seals.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (10)
1. The utility model provides a single-stage double entry centrifugal pump with stationary flow mechanism which characterized in that: the impeller-type pump comprises a pump shell body and a pump shaft assembled in the pump shell body, wherein an impeller is arranged on the pump shaft, a water inlet pipe body and a water outlet pipe body are arranged on the pump shell body, and a flow stabilizing mechanism used for stabilizing the flow state of fluid flowing through the water inlet pipe body is arranged in the water inlet pipe body.
2. The single stage, double suction centrifugal pump with flow stabilizing mechanism of claim 1, wherein: the flow stabilizing mechanism comprises a guide plate arranged in the water inlet pipe body.
3. The single stage, double suction centrifugal pump with flow stabilizing mechanism of claim 2, wherein: the surface of the guide plate is vertically arranged.
4. The single stage, double suction centrifugal pump with flow stabilizing mechanism of claim 2, wherein: the upper and lower parts of the guide plate are respectively fixedly connected with the inner pipe wall of the water inlet pipe body.
5. The single stage, double suction centrifugal pump with flow stabilizing mechanism of claim 2, wherein: one side of the guide plate, which is far away from the extrusion chamber in the pump shell body, is recorded as an A side edge, one side of the guide plate, which is close to the extrusion chamber in the pump shell body, is recorded as a B side edge, and the A side edge and the water inlet end of the water inlet pipe body are arranged at intervals.
6. The single stage, double suction centrifugal pump with flow stabilizing mechanism of claim 5, wherein: the distance between the side edge A of the guide plate and the water inlet end of the water inlet pipe body is marked as D, and D belongs to (20 mm and 30 mm).
7. The single stage, double suction centrifugal pump with flow stabilizing mechanism of claim 5, wherein: the side B of the guide plate extends to the outer side wall of the extrusion chamber in the pump shell body.
8. The single stage, double suction centrifugal pump with flow stabilizing mechanism of claim 7, wherein: the shape of the side B of the guide plate is consistent with the outline shape of the joint of the water inlet pipe body and the outer side wall of the extrusion chamber.
9. The single stage, double suction centrifugal pump with flow stabilizing mechanism of claim 2, wherein: the thickness of the guide plate is not less than 10mm and not more than the thickness of the pump body.
10. The single stage, double suction centrifugal pump with flow stabilizing mechanism of claim 2, wherein: the pump case body is formed by assembling an upper pump case and a lower pump case, the inner cavity of the pump case body is divided into two suction chambers and one extrusion chamber, pump shafts on two outer sides of an impeller are respectively provided with a mechanical seal shaft sleeve, the mechanical seal shaft sleeve and the pump case body are hermetically assembled through mechanical seal, two ends of the pump shaft are respectively assembled on the pump case body through A, B bearing assemblies, a bearing retaining sleeve is respectively arranged on the pump shaft body between a A, B bearing assembly and the mechanical seal shaft sleeve, a pump cover is arranged on the upper pump case and is hermetically assembled with the upper pump case through a sealing ring, an outflow port is arranged on the pump cover and is connected with an A water inlet on a mechanical seal flushing water return pipe assembly, two A water outlets are arranged on the mechanical seal flushing water return pipe assembly and respectively correspond to the two mechanical seal arrangements and flush the two A water outlets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121557830.6U CN215633783U (en) | 2021-07-09 | 2021-07-09 | Single-stage double-suction centrifugal pump with flow stabilizing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121557830.6U CN215633783U (en) | 2021-07-09 | 2021-07-09 | Single-stage double-suction centrifugal pump with flow stabilizing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215633783U true CN215633783U (en) | 2022-01-25 |
Family
ID=79889183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121557830.6U Active CN215633783U (en) | 2021-07-09 | 2021-07-09 | Single-stage double-suction centrifugal pump with flow stabilizing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215633783U (en) |
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2021
- 2021-07-09 CN CN202121557830.6U patent/CN215633783U/en active Active
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