CN213711343U - Double-suction middle-open centrifugal pump - Google Patents
Double-suction middle-open centrifugal pump Download PDFInfo
- Publication number
- CN213711343U CN213711343U CN202022949175.0U CN202022949175U CN213711343U CN 213711343 U CN213711343 U CN 213711343U CN 202022949175 U CN202022949175 U CN 202022949175U CN 213711343 U CN213711343 U CN 213711343U
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- top shell
- pump
- sides
- pump body
- fixedly connected
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Abstract
The utility model discloses an open centrifugal pump in double suction, including the top shell and the pump body, the top shell passes through bolt fixed connection with the pump body, be provided with the pump shaft between the top of the pump body and the bottom of top shell to the middle part fixedly connected with impeller of pump shaft, the through-hole has all been seted up to the inside of top shell both sides to the slot has all been seted up to the both sides at top shell top, the one end and the through-hole of slot are linked together, the utility model relates to a centrifugal pump technical field. This open centrifugal pump in double suction is provided with the pump shaft between the bottom through the top of the pump body and top shell, and the middle part fixedly connected with impeller of pump shaft, the through-hole has all been seted up to the inside of top shell both sides, and the slot has all been seted up to the both sides at top shell top, changes traditional external pipeline into top shell surface pipeline, and the slot is integrated into one piece with the top shell, makes simply, and intensity improves greatly, effectively prevents because of the pipeline problem that the collision leads to, makes pump overall structure perfectly an organic whole, and the outer tube is exquisite generous more.
Description
Technical Field
The utility model relates to a centrifugal pump technical field specifically is an open centrifugal pump in double suction.
Background
The double suction pump is an important form of the centrifugal pump, and is widely applied to engineering because of the characteristics of high lift, large flow and the like, the impeller of the pump type is actually formed by combining two back-to-back impellers, the water flow flowing out of the impellers is converged into a volute, and the double suction pump has the following characteristics: the single-suction impeller with the same diameter works simultaneously, and the flow can be doubled under the same impeller outer diameter; the pump shell is horizontally opened, so that the inspection and the maintenance are convenient, and meanwhile, the inlet and the outlet of the double-suction pump are in the same direction and are vertical to the pump shaft, so that the arrangement and the installation of the pump and the water inlet and outlet pipes are facilitated; the impeller structure of the double suction pump is symmetrical, no axial force exists, and the operation is stable.
In the prior art, a steel pipe is connected between a top shell cavity and a feeding part of the double-suction centrifugal pump and is used as a circulating pipeline for linear lubrication and flushing of the feeding part, the steel pipe is easy to deform or break and damage due to collision in the using process in a steel pipe connecting mode, a lower pump shaft needs to be completely disassembled when a filling sleeve is maintained, and the operation is complex.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a double suction centrifugal pump open in, solved prior art, the double suction centrifugal pump open in steel pipe connected mode easily leads to warping or fracture damage because of colliding with in the use, need dismantle pump shaft, complex operation's problem under the complete when packing the cover maintenance.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a double-suction mid-open centrifugal pump comprises a top shell and a pump body, wherein the top shell and the pump body are fixedly connected through bolts, a pump shaft is arranged between the top of the pump body and the bottom of the top shell, an impeller is fixedly connected at the middle part of the pump shaft, through holes are respectively arranged inside the two sides of the top shell, grooves are arranged on both sides of the top shell, one end of each groove is communicated with the through hole, vertical holes are arranged on both sides of the top shell and on the side far away from the two grooves, the top of the vertical hole is communicated with one side of the groove far away from the through hole, the two sides of the top shell and the top of the groove are fixedly connected with a groove cover through bolts, connecting holes are formed in the front face and the back face of the inner portion of the groove cover, sealing grooves are formed in the bottom of the groove cover and located in the front face and the back face of the connecting holes, and sealing gaskets are arranged inside the sealing grooves.
Further, mounting grooves are formed in the two sides of the top of the pump body and the two sides of the bottom of the top shell, a packing sleeve is arranged inside the mounting grooves, the packing sleeve is composed of an upper half ring piece and a lower half ring piece, and a flange portion is arranged on one side of the packing sleeve.
Further, the flange portion passes through bolt and one side fixed connection of pump body and top shell to the inboard of flange portion is provided with the end to sealed, the inner wall of mounting groove is provided with the hoop seal.
Furthermore, the both sides of the pump body are fixedly connected with bearing retainer rings, one side of the two bearing retainer rings which are far away from each other is fixedly connected with a bearing cover through bolts, and a bearing is arranged on the surface of the pump shaft and between the bearing retainer rings and the bearing cover.
Furthermore, the right end of the pump shaft penetrates through the bearing cover and extends to the right side of the bearing cover, and a connecting shaft portion is arranged at one end, extending to the right side of the bearing cover, of the pump shaft.
Further, the bottom of the pump body is provided with a supporting part, and the supporting part and the pump body are integrally formed.
The utility model provides a double suction middle open type centrifugal pump. Compared with the prior art, the method has the following beneficial effects:
(1) the double-suction middle-open centrifugal pump is characterized in that a pump shaft is arranged between the top of a pump body and the bottom of a top shell, an impeller is fixedly connected to the middle of the pump shaft, through holes are formed in the two sides of the top shell, grooves are formed in the two sides of the top shell, one end of each groove is communicated with the through hole, vertical holes are formed in the two sides of the top shell and located on the sides far away from the two grooves, the tops of the vertical holes are communicated with the sides far away from the through holes of the grooves, groove covers are fixedly connected to the two sides of the top shell and located on the tops of the grooves through bolts, connecting holes are formed in the front and the back of each groove cover, sealing grooves are formed in the front and the back of each connecting hole and located at the bottom of each groove cover, sealing gaskets are arranged in the sealing grooves, the traditional external pipeline is changed into a pipeline on the, and the strength is greatly improved, the problem of pipelines caused by collision is effectively prevented, the integral structure of the pump is integrated, and the outer pipe is more exquisite and elegant.
(2) The double-suction middle-open centrifugal pump is characterized in that mounting grooves are formed in two sides of the top of a pump body and two sides of the bottom of a top shell, a packing sleeve is arranged in each mounting groove and consists of an upper half ring piece and a lower half ring piece, a flange part is arranged on one side of the packing sleeve and is fixedly connected with one side of the pump body and one side of the top shell through bolts, the inner side of each flange part is provided with an end seal, the inner wall of each mounting groove is provided with a circumferential seal, bearing check rings are fixedly connected to two sides of the pump body, one sides, far away from the two bearing check rings, of the two bearing check rings are fixedly connected with bearing covers through bolts, a bearing is arranged on the surface of a pump shaft and is positioned between each bearing check ring and each bearing cover, the right end of the pump shaft penetrates through each bearing cover and extends to the right side of each bearing, the packing sleeve is divided into two parts, the sealing effect is ensured through multi-position sealing, and the split packing sleeve only needs to be disassembled from the top shell when being disassembled and maintained, so that the pump shaft is not required to be disassembled integrally, and the maintenance operation is convenient.
Drawings
FIG. 1 is a sectional view of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the trench cover structure of the present invention;
fig. 3 is a partially enlarged view of a portion a in fig. 1 according to the present invention.
In the figure: 1-top shell, 2-pump body, 3-pump shaft, 4-impeller, 5-through hole, 6-groove, 7-vertical hole, 8-groove cover, 9-connecting hole, 10-sealing groove, 11-sealing gasket, 12-mounting groove, 13-packing sleeve, 14-flange part, 15-end sealing, 16-annular sealing, 17-bearing retainer ring, 18-bearing cover, 19-bearing, 20-connecting shaft part and 21-supporting part.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a double-suction middle-open centrifugal pump comprises a top shell 1 and a pump body 2, wherein channels are arranged on two sides of the top of the pump body 2 and are communicated with a cavity on the side of the pump body 1 and a mounting groove 12, the top shell 1 and the pump body 2 are fixedly connected through bolts, the mounting grooves 12 are arranged on two sides of the top of the pump body 2 and two sides of the bottom of the top shell 1, a packing sleeve 13 is arranged inside the mounting groove 12, the packing sleeve 13 consists of an upper semi-ring part and a lower semi-ring part, when the split packing sleeve 13 is disassembled and maintained, only the top shell 1 needs to be disassembled, a pump shaft 3 does not need to be disassembled integrally, the maintenance operation is convenient, a flange part 14 is arranged on one side of the packing sleeve 13, the flange part 14 is fixedly connected with one side of the pump body 2 and the top shell 1 through bolts, an end seal 15 is arranged on the inner, and one side of the two bearing retainer rings 17 far away from each other is fixedly connected with a bearing cover 18 through bolts, a bearing 19 is arranged on the surface of the pump shaft 3 and positioned between the bearing retainer rings 17 and the bearing cover 18, a pump shaft 3 is arranged between the top of the pump body 2 and the bottom of the top shell 1, the right end of the pump shaft 3 penetrates through the bearing cover 18 and extends to the right side of the bearing cover 18, one end of the pump shaft 3 extending to the right side of the bearing cover 18 is provided with a connecting shaft part 20, the bottom of the pump body 2 is provided with a supporting part 21, the supporting part 21 and the pump body 2 are integrally formed, the middle part of the pump shaft 3 is fixedly connected with an impeller 4, through holes 5 are respectively arranged inside the two sides of the top shell 1, grooves 6 are respectively arranged on the two sides of the top shell 1, one end of each groove 6 is communicated with each through hole 5, vertical holes 7 are respectively arranged on the two sides, the both sides at top shell 1 top just are located the top of slot 6 and pass through bolt fixedly connected with slot cover 8, connecting hole 9 has all been seted up with the back in the inside front of slot cover 8, the seal groove 10 has all been seted up with the back in the front of slot cover 8 bottom just is located connecting hole 9, the inside of seal groove 10 is provided with sealed the pad 11, slot 6 and top shell 1 are integrated into one piece, it is simple to make, and intensity improves greatly, effectively prevent the pipeline problem because of the collision leads to, make the pump overall structure unified, the outer tube is more exquisite generous, the content that does not make detailed description in this description all belongs to the prior art that skilled person publicly knows simultaneously.
When the pump is used, part of water flow is sent into the groove 6 through the through hole 5 in the water pumping process of the impeller 4, flows through the filler sleeve 13 through the vertical hole 7, lubrication and flushing between the pump shaft 3 and the filler are achieved, the water flow enters the side cavity of the pump body 1 through the channel of the pump body 2, circulation is achieved, the top shell 1 is detached during filler maintenance, the upper portion and the lower portion of the filler sleeve 13 can be taken out by unscrewing 14 bolts of the flange portion of the filler sleeve 13, and the filler can be installed and returned after being replaced.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the present invention is to provide a person skilled in the art with the ability to understand the contents of the present invention and implement the same, and not to limit the scope of the present invention.
Claims (6)
1. The utility model provides a double suction mid-open centrifugal pump, includes top shell (1) and the pump body (2), top shell (1) and the pump body (2) pass through bolt fixed connection, its characterized in that: a pump shaft (3) is arranged between the top of the pump body (2) and the bottom of the top shell (1), an impeller (4) is fixedly connected to the middle of the pump shaft (3), through holes (5) are formed in the two sides of the top shell (1), grooves (6) are formed in the two sides of the top shell (1), one end of each groove (6) is communicated with the through hole (5), vertical holes (7) are formed in the two sides of the top shell (1) and located on the side, far away from the two grooves (6), of the two sides of the top shell (1), the top of each vertical hole (7) is communicated with the side, far away from the through holes (5), of each groove (6), groove covers (8) are fixedly connected to the two sides of the top shell (1) and located on the tops of the grooves (6) through bolts, connecting holes (9) are formed in the front and back of the groove covers (8), sealing grooves (10) are formed in the bottoms of the groove covers (8) and located on the front and back, a sealing gasket (11) is arranged in the sealing groove (10).
2. A double suction split centrifugal pump according to claim 1, wherein: mounting grooves (12) are formed in the two sides of the top of the pump body (2) and the two sides of the bottom of the top shell (1), a packing sleeve (13) is arranged inside the mounting grooves (12), the packing sleeve (13) is composed of an upper half ring piece and a lower half ring piece, and a flange portion (14) is arranged on one side of the packing sleeve (13).
3. A double suction split centrifugal pump according to claim 2, wherein: the pump is characterized in that the flange part (14) is fixedly connected with one side of the pump body (2) and one side of the top shell (1) through bolts, an end seal (15) is arranged on the inner side of the flange part (14), and a circumferential seal (16) is arranged on the inner wall of the mounting groove (12).
4. A double suction split centrifugal pump according to claim 1, wherein: the pump is characterized in that bearing retainer rings (17) are fixedly connected to two sides of the pump body (2), bearing covers (18) are fixedly connected to one sides, far away from the two bearing retainer rings (17), of the pump shaft (3), and bearings (19) are arranged on the surfaces, located between the bearing retainer rings (17) and the bearing covers (18).
5. A double suction split centrifugal pump according to claim 4, wherein: the right end of the pump shaft (3) penetrates through the bearing cover (18) and extends to the right side of the bearing cover (18), and a connecting shaft portion (20) is arranged at one end, extending to the right side of the bearing cover (18), of the pump shaft (3).
6. A double suction split centrifugal pump according to claim 1, wherein: the bottom of the pump body (2) is provided with a supporting part (21), and the supporting part (21) and the pump body (2) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022949175.0U CN213711343U (en) | 2020-12-10 | 2020-12-10 | Double-suction middle-open centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022949175.0U CN213711343U (en) | 2020-12-10 | 2020-12-10 | Double-suction middle-open centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213711343U true CN213711343U (en) | 2021-07-16 |
Family
ID=76787039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022949175.0U Expired - Fee Related CN213711343U (en) | 2020-12-10 | 2020-12-10 | Double-suction middle-open centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213711343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562481A (en) * | 2022-01-14 | 2022-05-31 | 大连双龙泵业集团有限公司 | Single-stage middle-opened volute type double-suction centrifugal pump and cavity machining process thereof |
-
2020
- 2020-12-10 CN CN202022949175.0U patent/CN213711343U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562481A (en) * | 2022-01-14 | 2022-05-31 | 大连双龙泵业集团有限公司 | Single-stage middle-opened volute type double-suction centrifugal pump and cavity machining process thereof |
| CN114562481B (en) * | 2022-01-14 | 2024-01-09 | 大连双龙泵业集团有限公司 | Single-stage middle-opening volute type double-suction centrifugal pump cavity machining process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210716 Termination date: 20211210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |