CN213176178U - Vertical single-stage centrifugal pump body structure - Google Patents
Vertical single-stage centrifugal pump body structure Download PDFInfo
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- CN213176178U CN213176178U CN202021533164.8U CN202021533164U CN213176178U CN 213176178 U CN213176178 U CN 213176178U CN 202021533164 U CN202021533164 U CN 202021533164U CN 213176178 U CN213176178 U CN 213176178U
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- water inlet
- inlet pipe
- volute
- pipe body
- pump body
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Abstract
A vertical single-stage centrifugal pump body structure comprises a volute and a water inlet pipe body; two end faces of the volute are respectively provided with a pump cover mounting port and a water inlet pipe mounting port, the side face of the volute is provided with a water outlet pipe part, one end of the water inlet pipe body and the water inlet pipe mounting port of the volute are adjustable in mounting angle and are fixedly connected through countersunk screws, and the other end of the water inlet pipe body is a water inlet of the pump body. The original pump body is split into the volute and the water inlet pipe body, so that the wall thickness is uniformly distributed, the condition that a certain part is thicker in the original structure is avoided, the casting defect is not easy to occur, and the rejection rate of parts is reduced; the quality of the volute and the water inlet pipe body can be better detected, and another part cannot be influenced when the quality problem occurs; two end surfaces of the volute and two ends of the water inlet pipe can be clamped by the fixture tool, so that the processing is convenient; the installation angle of the volute and the water inlet pipe body is adjustable, and the installation and use conditions can be adapted to different installation and use conditions.
Description
Technical Field
The utility model relates to a centrifugal pump, in particular to vertical single-stage centrifugal pump body structure.
Background
The existing vertical single-stage centrifugal pump body structure is generally an integral body, as shown in figure 1, the pump body has certain defects: firstly, the volute part 1 and the water inlet pipe part 2 share a part of wall thickness, the wall thickness at the position of figure 1A is too thick, so that the casting is easy to have defects, and when casting defects or processing errors occur on either side of the volute part 1 or the water inlet pipe part 2, the whole part is scrapped and is not economical; secondly, the volute part 1 and the water inlet pipe part 2 are integrated, casting defects such as air holes and the like at the connecting part of the volute part 1 and the water inlet pipe part 2 cannot be detected during pressurizing, and after the pump is started, a medium at the side of the volute part 1 is pressurized by the impeller, and the pressure is higher than the pressure at the side of the water inlet pipe part 2, so that the medium flows back, and normal operation of the pump is influenced; thirdly, the existing pump body is irregular in shape and inconvenient to fix during processing; and the inlet and outlet directions of the pump body are fixed, and the pump body can only be installed in a straight pipe section in a pipeline, and cannot be installed when the field environment is limited, such as a corner of a room.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a vertical single-stage centrifugal pump body structure.
The purpose of the utility model can be realized by the following technical scheme: a vertical single-stage centrifugal pump body structure comprises a volute and a water inlet pipe body; two end faces of the volute are respectively provided with a pump cover mounting port and a water inlet pipe mounting port, the side face of the volute is provided with a water outlet pipe portion, one end of the water inlet pipe body and the water inlet pipe mounting port of the volute are adjustable in mounting angle and are fixedly connected through countersunk screws, and the other end of the water inlet pipe body is a water inlet of the pump body.
Furthermore, one end of the water inlet pipe body and the water inlet pipe mounting opening of the volute are respectively provided with a corresponding threaded hole and a countersunk head threaded hole.
Furthermore, a seat part is arranged at one end of the water inlet pipe body close to the water inlet pipe body.
Compared with the prior art, the beneficial effects of the utility model are that: the original pump body is split into the volute and the water inlet pipe body, so that the wall thickness is uniformly distributed, the condition that a certain part is thicker in the original structure is avoided, the casting defect is not easy to occur, and the rejection rate of parts is reduced; the volute and the water inlet pipe body do not have a shared wall thickness, and the volute and the water inlet pipe body are respectively pressed, so that the quality of a casting can be better detected; when the quality problem of the volute or the water inlet pipe body occurs, the other part cannot be influenced, and the volute or the water inlet pipe body is more scientific and economical than the original structure; the shape of the improved part is more regular, and the two end surfaces of the volute and the two ends of the water inlet pipe can be clamped by the fixture tool, so that the processing is convenient; the installation angle of the volute and the water inlet pipe body is adjustable, and the installation and use conditions can be adapted to different installation and use conditions.
Drawings
Fig. 1 is a schematic structural diagram of the prior art.
The components in fig. 1 are numbered as follows:
1 volute part
2 a water inlet pipe part.
Fig. 2 is a schematic structural diagram of the present invention installed in a straight pipe.
Fig. 3 is another schematic structural diagram of the present invention installed in a straight pipe line.
Fig. 4 is a schematic structural view of the volute and the water inlet pipe body of the present invention installed at 90 degrees.
Fig. 5 is another schematic structural view of the volute and the water inlet pipe body of the present invention installed at 90 degrees.
The components in fig. 2 to 5 are numbered as follows:
1 spiral case
101 pump cover mounting opening
102 inlet pipe mounting port
103 water outlet pipe part
2 water inlet pipe body
201 seat body part
3 countersunk head screw.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings to make it clear to those skilled in the art how to practice the invention. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not to limit the scope of the invention.
Referring to fig. 2, a vertical single-stage centrifugal pump body structure comprises a volute 1 and a water inlet pipe body 2.
The top end face of the volute 1 is provided with a pump cover mounting opening 101, the bottom end face of the volute 1 is provided with a water inlet pipe mounting opening 102, and the side face of the volute 1 is provided with a water outlet pipe portion 103.
The one end of body 2 of intaking is connected through countersunk screw 3 with the inlet tube installing port 102 of spiral case 1, and the one end of body 2 of intaking is equipped with corresponding screw hole and countersunk screw hole respectively with the inlet tube installing port 102 of spiral case 1, and the one end department of being close to of body 2 of intaking is equipped with seat portion 201, and the other end of body 2 of intaking is as the water inlet of the pump body.
The original pump body is disassembled into two parts, namely a volute 1 and a water inlet pipe body 2, and the volute 1 and the water inlet pipe body 2 are connected together through countersunk screws 3. The improved pump body structure has uniform wall thickness distribution, does not have the condition that a certain part is thicker in the original structure, is not easy to have casting defects, and reduces the rejection rate of parts; the volute 1 and the water inlet pipe body 2 do not have a common wall thickness and are respectively pressed, so that the quality of a casting can be better detected; when the quality problem occurs to the volute 1 or the water inlet pipe body 2, the other part cannot be influenced, and the structure is more scientific and economical than the original structure; secondly, the shape of the improved part is regular, and the two end faces of the volute 1 and the two ends of the water inlet pipe can be clamped by a fixture tool, so that the improved part is convenient to process.
In addition, in the improved pump body structure, the installation angles of the volute 1 and the water inlet pipe body 2 are adjustable, and besides the original installation mode in a straight pipe pipeline shown in fig. 2, the installation mode of the straight pipe pipeline can be turned over by 90 degrees on a vertical surface as shown in fig. 3, and the installation mode that the water outlet pipe part 103 of the volute 1 and the water inlet pipe body 2 are 90 degrees as shown in fig. 4 and fig. 5 can be adopted, so that the pump body can be installed in corners and non-straight pipe pipelines, and the use is met. The installation angle of the water inlet pipe body 2 can be adjusted according to the field conditions.
It should be noted that many variations and modifications of the embodiments of the present invention are possible, which are fully described, and are not limited to the specific examples of the above embodiments. The above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.
Claims (3)
1. A vertical single-stage centrifugal pump body structure is characterized by comprising a volute and a water inlet pipe body; two end faces of the volute are respectively provided with a pump cover mounting port and a water inlet pipe mounting port, the side face of the volute is provided with a water outlet pipe portion, one end of the water inlet pipe body and the water inlet pipe mounting port of the volute are adjustable in mounting angle and are fixedly connected through countersunk screws, and the other end of the water inlet pipe body is a water inlet of the pump body.
2. The pump body structure of the vertical single-stage centrifugal pump according to claim 1, wherein one end of the water inlet pipe body and the water inlet pipe mounting port of the volute are respectively provided with a corresponding threaded hole and a corresponding countersunk threaded hole.
3. The vertical single-stage centrifugal pump body structure according to claim 1, wherein a seat portion is provided near one end of the water inlet pipe body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021533164.8U CN213176178U (en) | 2020-07-29 | 2020-07-29 | Vertical single-stage centrifugal pump body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021533164.8U CN213176178U (en) | 2020-07-29 | 2020-07-29 | Vertical single-stage centrifugal pump body structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213176178U true CN213176178U (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021533164.8U Active CN213176178U (en) | 2020-07-29 | 2020-07-29 | Vertical single-stage centrifugal pump body structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN213176178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116227120A (en) * | 2022-12-01 | 2023-06-06 | 中国航空综合技术研究所 | Sampling point and reverse surface based aviation jet pump casting pump body wall thickness optimization method |
-
2020
- 2020-07-29 CN CN202021533164.8U patent/CN213176178U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116227120A (en) * | 2022-12-01 | 2023-06-06 | 中国航空综合技术研究所 | Sampling point and reverse surface based aviation jet pump casting pump body wall thickness optimization method |
| CN116227120B (en) * | 2022-12-01 | 2023-09-19 | 中国航空综合技术研究所 | Sampling point and reverse surface based aviation jet pump casting pump body wall thickness optimization method |
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