CN220850140U - Double-inlet multistage centrifugal pump water inlet pipe - Google Patents
Double-inlet multistage centrifugal pump water inlet pipe Download PDFInfo
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- CN220850140U CN220850140U CN202322785312.5U CN202322785312U CN220850140U CN 220850140 U CN220850140 U CN 220850140U CN 202322785312 U CN202322785312 U CN 202322785312U CN 220850140 U CN220850140 U CN 220850140U
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- inlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 133
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 4
- 238000012806 monitoring device Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a water inlet pipe of a double-inlet multistage centrifugal pump, which comprises a water inlet main pipe and two components of water connecting pipes, wherein the two components of water connecting pipes divide single-channel water flow in the water inlet main pipe into two water flows; and a balance through pipe is further connected between the two component water connecting pipes and used for stabilizing the water pressure in the two component water connecting pipes after the water is split. A conical sealing cover is welded and fixed in one end pipe of the water inlet main pipe connected with the two-component water connecting pipe; the water inlet pipe of the double-inlet multistage centrifugal pump is provided with the balance through pipes which are communicated with each other at the junction of the main water inlet pipe and the split connecting pipe, so that the stable water pressure between the split connecting pipes after split can be ensured.
Description
Technical Field
The utility model relates to the technical field of double-inlet multistage pumps, in particular to a water inlet pipe of a double-inlet multistage centrifugal pump.
Background
The water inlet connection of the double-inlet multistage centrifugal pump in the prior art usually adopts two connection modes of double pipe double inlet and single pipe double inlet. The double-pipe double-inlet means that the two water inlet connecting pipes are directly connected with the reservoir to achieve the purpose of supplying water to the pump, but the double-pipe double-inlet is difficult to ensure that the water inlet flow states and parameters of the two pipelines are consistent, so that the normal operation of the pump is influenced, and even the pump is damaged to be inoperable when serious; the single-tube double-inlet mainly leads out the water of the reservoir to the water inlet of the pump through the Y-shaped tube shunt connection, so as to achieve the purpose of water supply.
The patent with the authorized bulletin number of CN216618013U discloses a water inlet shunt pipe for a double-inlet multistage centrifugal pump, which comprises an inlet main pipe, two branch pipes, a tapping component and two water inlet pipes, wherein the water inlet ends of the two branch pipes are connected with the water outlet ends of the inlet main pipe in a crossing way to form a herringbone shape, a separation plate is arranged in the middle of the inlet main pipe, the separation plate separates the interior of the inlet main pipe to form two water channels, the two water channels are respectively communicated with the two branch pipes, the two water inlet pipes are respectively communicated with the two water channels through the tapping component, and an adjusting valve is arranged on the water inlet pipe; the technical scheme of the patent is used for the water inlet shunt tube of the double-inlet multistage centrifugal pump, has a simple structure, can improve the balance and the reliability of the centrifugal pump, but the technical scheme is lack of a constant pressure structure at the junction of the water inlet ends of two branch pipes and the water outlet end of the inlet manifold, and is easy to cause the occurrence of low or high internal pressure caused by the change of a water pipe passage at the junction, thereby bringing use risks.
In view of the above, we propose a water inlet pipe of a dual-inlet multistage centrifugal pump, which is provided with a balance through pipe which is mutually communicated at the junction of a main pipe and two branch pipes for split flow, so as to ensure stable water pressure between the two branch pipes after split flow.
The information disclosed in this background section is only for enhancement of understanding of the general background and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of utility model
The utility model aims to provide a water inlet pipe of a double-inlet multistage centrifugal pump, wherein a balance through pipe which is communicated with each other is arranged at the junction of a water inlet main pipe and a split-flow connecting pipe, so that the water pressure between the split-flow connecting pipes after split-flow can be ensured to be stable.
In order to achieve the above purpose, the present utility model proposes the following technical solutions:
The water inlet pipe of the double-inlet multistage centrifugal pump comprises a water inlet main pipe and two groups of water connecting pipes, wherein the two groups of water connecting pipes are symmetrically connected to two sides of the water inlet main pipe, and divide a single water flow in the water inlet main pipe into two water flows; and a balance through pipe is further connected between the two component water connecting pipes and used for stabilizing the water pressure in the two component water connecting pipes after the water is split.
In the technical scheme of the utility model, a conical sealing cover is welded and fixed in one end pipe of the water inlet main pipe, two groups of first connecting ports are symmetrically arranged on one side of the water inlet main pipe where the conical sealing cover is welded, the first connecting ports are used for connecting the water diversion connecting pipes, the conical sealing cover plays a sealing role and guides water flow to uniformly flow into the two groups of water diversion connecting pipes, so that the flowing state of the water inlet water flow can be improved, and the phenomena of local vortex and water flow disorder are avoided.
In the technical scheme of the utility model, a first connecting flange is welded and fixed at the other end of the water inlet main pipe, and the first connecting flange is used for being connected with an external water outlet in an installation way.
In the technical scheme of the utility model, one end of the two-component water connecting pipe is provided with a second connecting port, the second connecting port is used for connecting the water inlet main pipe, the second connecting port is fixedly connected with the first connecting port through welding, the other end of the two-component water connecting pipe is fixedly welded with a second connecting flange, and the second connecting flange is used for being connected with a water inlet of the multistage centrifugal pump in a mounting way.
Further, third connectors are symmetrically arranged on the two-component water connecting pipes, the third connectors are used for being connected with the balance through pipe, two ends of the balance through pipe are respectively connected with the third connectors on the two-component water connecting pipes in a welded mode, and water flow and water pressure monitoring devices are further arranged on the two-component water connecting pipes and used for monitoring water flow and water pressure.
Compared with the prior art, the utility model has the following beneficial effects:
The water inlet pipe of the double-inlet multistage centrifugal pump is provided with the balance through pipes which are communicated with each other at the junction of the main water inlet pipe and the split connecting pipe, so that the stable water pressure between the split connecting pipes after split can be ensured.
Drawings
FIG. 1 is a schematic diagram of a water inlet pipe of a dual-inlet multistage centrifugal pump according to the present utility model;
FIG. 2 is a schematic diagram illustrating a part of the structure of a water inlet pipe of a dual-inlet multistage centrifugal pump according to the present utility model;
FIG. 3 is a schematic illustration of a portion of a dual inlet multistage centrifugal pump inlet tube according to the present utility model;
In the figure: 1. a water inlet main pipe; 10. a conical cover; 11. a first connection flange; 12. a first connection port; 2. a water diversion connecting branch pipe; 20. a second connection port; 21. a second connection flange; 22. a third connection port; 23. a water flow and water pressure monitoring device; 3. balance the tube.
Detailed Description
In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the embodiments described below are only some embodiments of the present utility model, not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1, the embodiment of the utility model provides a water inlet pipe of a double-inlet multistage centrifugal pump, which comprises a water inlet main pipe 1 and two groups of water connecting pipes 2, wherein the two groups of water connecting pipes 2 are symmetrically connected to two sides of the water inlet main pipe 1, and the two groups of water connecting pipes 2 divide single-channel water flow in the water inlet main pipe 1 into two water flows;
In this embodiment, a balance pipe 3 is further connected between the two-component water connection pipes 2, and the balance pipe 3 is used for stabilizing the water pressure in the two-component water connection pipes 2 after the split flow.
As shown in fig. 2, in this embodiment, a conical sealing cover 10 is welded and fixed in one end of a main water inlet pipe 1, a first connection flange 11 is welded and fixed at the other end of the main water inlet pipe 1, two groups of first connection ports 12 are symmetrically provided on one side of the main water inlet pipe 1 where the conical sealing cover 10 is welded, and the first connection ports 12 are used for connecting the water diversion connection pipes 2.
In this embodiment, as shown in fig. 3, one end of the two-component water connecting pipe 2 is provided with a second connecting port 20, the second connecting port 20 is used for connecting the water inlet main pipe 1, and the other end of the two-component water connecting pipe 2 is welded and fixed with a second connecting flange 21.
The two-component water connecting pipe 2 is symmetrically provided with a third connecting port 22, the third connecting port 22 is used for connecting the balance through pipe 3, and the two-component water connecting pipe 2 is also provided with a water flow and water pressure monitoring device 23.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The water inlet pipe of the double-inlet multistage centrifugal pump is characterized by comprising a water inlet main pipe (1) and two groups of water connecting pipes (2), wherein the two groups of water connecting pipes (2) are symmetrically connected to two sides of the water inlet main pipe (1), and the two groups of water connecting pipes (2) divide a single water flow in the water inlet main pipe (1) into two water flows;
And a balance through pipe (3) is further connected between the two-component water connecting pipes (2), and the balance through pipe (3) is used for stabilizing the water pressure in the two-component water connecting pipes (2) after the water is distributed.
2. The water inlet pipe of the double-inlet multistage centrifugal pump according to claim 1, wherein a conical sealing cover (10) is welded and fixed in one end pipe of the water inlet main pipe (1), a first connecting flange (11) is welded and fixed at the other end of the water inlet main pipe (1), two groups of first connecting ports (12) are symmetrically formed in one side of the water inlet main pipe (1) where the conical sealing cover (10) is welded, and the first connecting ports (12) are used for connecting the water diversion connecting pipes (2).
3. The water inlet pipe of the double-inlet multistage centrifugal pump according to claim 1, wherein one end of the two-component water connecting pipe (2) is provided with a second connecting port (20), the second connecting port (20) is used for connecting the water inlet main pipe (1), and a second connecting flange (21) is welded and fixed at the other end of the two-component water connecting pipe (2).
4. The water inlet pipe of the double-inlet multistage centrifugal pump according to claim 1, wherein third connectors (22) are symmetrically arranged on the two-component water connecting pipes (2), the third connectors (22) are used for connecting the balance through pipe (3), and water flow and water pressure monitoring devices (23) are further arranged on the two-component water connecting pipes (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322785312.5U CN220850140U (en) | 2023-10-17 | 2023-10-17 | Double-inlet multistage centrifugal pump water inlet pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322785312.5U CN220850140U (en) | 2023-10-17 | 2023-10-17 | Double-inlet multistage centrifugal pump water inlet pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220850140U true CN220850140U (en) | 2024-04-26 |
Family
ID=90741092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322785312.5U Active CN220850140U (en) | 2023-10-17 | 2023-10-17 | Double-inlet multistage centrifugal pump water inlet pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220850140U (en) |
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2023
- 2023-10-17 CN CN202322785312.5U patent/CN220850140U/en active Active
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