CN211648585U - Centrifugal pump inlet flange structure with commonality - Google Patents
Centrifugal pump inlet flange structure with commonality Download PDFInfo
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- CN211648585U CN211648585U CN201922401105.9U CN201922401105U CN211648585U CN 211648585 U CN211648585 U CN 211648585U CN 201922401105 U CN201922401105 U CN 201922401105U CN 211648585 U CN211648585 U CN 211648585U
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- centrifugal pump
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Abstract
The utility model relates to a centrifugal pump import flange structure with commonality, including the centrifugal pump body, its characterized in that: the outside of the circular export of the centrifugal pump body is provided with circle tang face, there is a flange body, the lower part is a flange neck, upper portion is standard flat welding flange, flange neck bottom medial surface is provided with the circular tang face of the circular export outside of the centrifugal pump body circle tang face complex, set up 4 evenly distributed's through-hole on the circular tang face of flange neck bottom, correspond with 4 evenly distributed's through-hole, four screw thread blind holes have been seted up on the circular export outside of the centrifugal pump body circle tang face, by interior hexagonal socket head screw through the through-hole twist-on in the screw thread blind hole circular export of fixed flange body and the centrifugal pump body. The utility model has the advantages that compromise under the prerequisite of reliability and leakproofness for the flange can adapt to different pressure level and standard, increases pump body commonality, has saved a large amount of repaiies mould and die sinking expenses, reduces manufacturing cost for the enterprise.
Description
Technical Field
The utility model relates to a centrifugal pump import flange structure with commonality.
Background
The existing single-stage single-suction centrifugal pump (see fig. 1) is generally in a straight conical structure, a flange and a pump body are cast into a whole, the size of the flange cannot be changed, but many customers put forward the requirements of different flange standards and pressure grades to pump manufacturing enterprises, so the use requirements can be met only by opening the die again or modifying the die, and the existing pumps with small volumes all adopt precision casting dies, so the die is difficult to modify and needs to be opened again, and great waste is caused to the enterprises. Therefore, improvements to solve the above problems are desired.
Disclosure of Invention
The utility model aims at satisfying the requirement of different use occasions to centrifugal pump import flange through designing a novel centrifugal pump import flange structure. The utility model provides a novel import flange structure is under the prerequisite of taking into account reliability and leakproofness for the flange can adapt to different pressure levels and standard, increases the pump body commonality, has saved a large amount of repaiies mould and die sinking expense and administrative cost, reduces manufacturing cost for the enterprise. The utility model relates to a centrifugal pump import flange structure with commonality, including the centrifugal pump body, its characterized in that: the outside of the circular export of the centrifugal pump body is provided with circle tang face, there is a flange body, the lower part is a flange neck, upper portion is standard flat welding flange, flange neck bottom medial surface is provided with the circular tang face of the circular export outside of the centrifugal pump body circle tang face complex, set up 4 evenly distributed's through-hole on the circular tang face of flange neck bottom, correspond with 4 evenly distributed's through-hole, four screw thread blind holes have been seted up on the circular export outside of the centrifugal pump body circle tang face, by interior hexagonal socket head screw through the through-hole twist-on in the screw thread blind hole circular export of fixed flange body and the centrifugal pump body. An O-shaped sealing ring is arranged on the top ring in the circular spigot surface at the bottom of the flange neck. The utility model has the advantages that compromise under the prerequisite of reliability and leakproofness for the flange can adapt to different pressure level and standard, increases pump body commonality, has saved a large amount of repaiies mould and die sinking expense and administrative expense, reduces manufacturing cost for the enterprise.
Drawings
Figure 1 is a cross-sectional view of a prior art structure,
fig. 2 is a structural section view of the present invention.
Detailed Description
The figure shows a universal inlet flange structure of a centrifugal pump, which comprises a centrifugal pump body 1 and is characterized in that: the lateral surface of the circular export 2 of the centrifugal pump body is provided with round spigot face 3, there is a flange body 4, the lower part is a flange neck 5, upper portion is standard flat welding flange 6, flange neck bottom medial surface is provided with the circular spigot face 7 with the circular export outside of the external side of the centrifugal pump body circle spigot face complex, set up 4 evenly distributed's through-hole 8 on the circular spigot face of flange neck bottom, correspond with 4 evenly distributed's through-hole, set up four screw blind holes 9 on the circular export outside of the centrifugal pump body circle spigot face, by interior hexagonal cylinder head screw 10 through the through-hole twist connect in the screw blind hole circular export of fixed flange body and the centrifugal pump body. An O-shaped sealing ring 11 is arranged on the top ring in the circular spigot surface at the bottom of the flange neck.
The main scheme is to design a flange body formed by welding a standard flat welding flange and a steel pipe (hereinafter referred to as a flange neck), wherein the size of the standard flat welding flange can be selected according to different standards and different pressure grades, so that the pump body can meet the requirements of different occasions, and the universality of the pump body is improved. In order to prevent leakage at the joint of the welding flange and the pump body, an O-shaped ring is designed to be arranged at the matching position of the pump body and the seam allowance of the welding flange, and an inner hexagonal socket head cap screw is adopted to connect the welding flange and the pump body.
The utility model discloses can satisfy the requirement of different use occasions to centrifugal pump import flange. On the premise of considering both reliability and sealing performance, the flange can adapt to different pressure levels and standards, the universality of the pump body is improved, a large amount of mould repairing and opening costs and management costs are saved, and the manufacturing cost of enterprises is reduced.
Claims (2)
1. The utility model provides a centrifugal pump import flange structure with commonality, includes the centrifugal pump body, its characterized in that: the outside of the circular export of the centrifugal pump body is provided with circle tang face, there is a flange body, the lower part is a flange neck, upper portion is standard flat welding flange, flange neck bottom medial surface is provided with the circular tang face of the circular export outside of the centrifugal pump body circle tang face complex, set up 4 evenly distributed's through-hole on the circular tang face of flange neck bottom, correspond with 4 evenly distributed's through-hole, four screw thread blind holes have been seted up on the circular export outside of the centrifugal pump body circle tang face, by interior hexagonal socket head screw through the through-hole twist-on in the screw thread blind hole circular export of fixed flange body and the centrifugal pump body.
2. A centrifugal pump inlet flange structure having versatility according to claim 1, wherein: an O-shaped sealing ring is arranged on the top ring in the circular spigot surface at the bottom of the flange neck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922401105.9U CN211648585U (en) | 2019-12-27 | 2019-12-27 | Centrifugal pump inlet flange structure with commonality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922401105.9U CN211648585U (en) | 2019-12-27 | 2019-12-27 | Centrifugal pump inlet flange structure with commonality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211648585U true CN211648585U (en) | 2020-10-09 |
Family
ID=72699982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922401105.9U Active CN211648585U (en) | 2019-12-27 | 2019-12-27 | Centrifugal pump inlet flange structure with commonality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211648585U (en) |
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2019
- 2019-12-27 CN CN201922401105.9U patent/CN211648585U/en active Active
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