CN212479696U - High-efficiency energy-saving multistage middle-open double-suction pump - Google Patents
High-efficiency energy-saving multistage middle-open double-suction pump Download PDFInfo
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- CN212479696U CN212479696U CN202020803711.3U CN202020803711U CN212479696U CN 212479696 U CN212479696 U CN 212479696U CN 202020803711 U CN202020803711 U CN 202020803711U CN 212479696 U CN212479696 U CN 212479696U
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Abstract
The utility model belongs to the technical field of double suction pumps, in particular to a high-efficiency energy-saving multi-stage middle-open double suction pump, which comprises a pump body, an impeller and an annular fluid director; the impeller is fixed on the pump shaft at two ends of the shaft sleeve through shaft sleeve nuts, and a polymer smooth coating is arranged on the outer side of the impeller to prevent the impeller from being abraded due to water flow scouring; an annular fluid director is arranged below the water inlet and fixed on the inner wall of the pump cavity, and the output end of the annular fluid director corresponds to the upper end of the impeller; the annular fluid director intensively guides the water flow at the water inlet to the impeller, so that the water flow diffusion kinetic energy is enhanced, and the energy conversion efficiency is improved; the other annular fluid director is arranged below the impeller, and the two annular fluid directors are arranged oppositely; the water outlet is arranged below the pump body, the water outlet is symmetrically and intensively arranged at the bottom of the pump body, and the water to be discharged is guided by the annular fluid director, so that the water flow direction is more centralized, and the energy loss is avoided.
Description
Technical Field
The utility model relates to a double entry pump technical field specifically is a high-efficient energy-saving multistage middle-open double entry pump.
Background
The double suction pump is an important form of the centrifugal pump, and is widely applied to engineering due to the characteristics of high lift, large flow and the like. This pump type impeller is actually made up of two back-to-back impellers, the water flow from the impellers merging into a volute. The double-suction pump has the following characteristics that the double-suction pump is equivalent to two single-suction impellers with the same diameter and 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. However, in the use process of the double suction pump, due to the scouring of water flow, the inner wall of a flow passage of the water pump and the water passing surface of an impeller become rough and uneven, the friction coefficient of the flow passage in the water pump is increased, in addition, the flow velocity of water in the pump is large, the head loss is increased, the hydraulic efficiency is reduced, the performance of the water pump is deteriorated, the operation efficiency is reduced by 2-5%, the efficiency of the water pump can be reduced by more than 10% seriously, the energy and resources are not fully utilized, and the energy conservation and the environmental protection are not facilitated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high-efficient energy-saving multistage middle-open double entry pump to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an efficient energy-saving multi-stage middle-open double-suction pump comprises a pump body, an impeller and an annular fluid director; a pump cover is arranged above the pump body, and two sides of the pump cover are respectively provided with corresponding water inlets; a pump cavity is arranged in the pump body, the pump shaft is arranged in the pump body in a penetrating manner, a shaft sleeve is arranged on the pump shaft, and two ends of the shaft sleeve fix the impeller on the pump shaft through shaft sleeve nuts; the pump cavity is divided into double-opening working cavities along the center of the pump shaft, and the impeller is fixed in the double-opening working cavities; an annular fluid director is arranged below the water inlet and fixed on the inner wall of the pump cavity, and the output end of the annular fluid director corresponds to the upper end of the impeller; the other annular fluid director is arranged below the impeller, and the two annular fluid directors are arranged oppositely; and a water outlet is arranged below the pump body and symmetrically and intensively arranged at the bottom of the pump body.
Preferably, the bottom of the pump body is provided with a fixed base, and the side edge of the fixed base is provided with a fixed mounting structure.
Preferably, the pump shaft is axially distributed in the pump body, and the impellers are horizontally and evenly distributed in the double-opening working cavity.
Preferably, two groups of corresponding annular fluid directors are respectively arranged at the upper end and the lower end in the double-opening working cavity, and the output end of the annular fluid director at the lower end corresponds to the position of the water outlet.
Preferably, a polymer smooth coating is arranged on the outer side of the impeller.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has simple structure, strong practicability and high efficiency; the impeller is fixed on the pump shaft at two ends of the shaft sleeve through shaft sleeve nuts, and a polymer smooth coating is arranged on the outer side of the impeller to prevent the impeller from being abraded due to water flow scouring; an annular fluid director is arranged below the water inlet and fixed on the inner wall of the pump cavity, and the output end of the annular fluid director corresponds to the upper end of the impeller; the annular fluid director intensively guides the water flow at the water inlet to the impeller, so that the water flow diffusion kinetic energy is enhanced, and the energy conversion efficiency is improved; the other annular fluid director is arranged below the impeller, and the two annular fluid directors are arranged oppositely; the water outlet is arranged below the pump body, the water outlet is symmetrically and intensively arranged at the bottom of the pump body, and the water to be discharged is guided by the annular fluid director, so that the water flow direction is more centralized, and the energy loss is avoided.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1. a pump body; 2. a pump cover; 3. a water inlet; 4. a pump chamber; 5. a pump shaft; 6. a shaft sleeve; 7. an impeller; 8. an annular flow director; 9. and (7) a water outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1, the present invention provides a technical solution: an efficient energy-saving multi-stage middle-open double-suction pump comprises a pump body 1, an impeller 7 and an annular fluid director 8; a pump cover 2 is arranged at the position above the pump body 1, and two sides of the pump cover 2 are respectively provided with a corresponding water inlet 3; a pump cavity 4 is arranged in the pump body 1, a pump shaft 5 is arranged in the pump body 1 in a penetrating mode, a shaft sleeve 6 is arranged on the pump shaft 5, and an impeller 7 is fixed on the pump shaft 5 at two ends of the shaft sleeve 6 through shaft sleeve nuts; the pump cavity 4 is divided into double-opening working cavities along the central position of the pump shaft 5, and the impeller 7 is fixed in the double-opening working cavities; an annular fluid director 8 is arranged below the water inlet 3, the annular fluid director 8 is fixed on the inner wall of the pump cavity 4, and the output end of the annular fluid director 8 corresponds to the upper end of the impeller 7; another annular fluid director 8 is arranged below the impeller 7, and the two annular fluid directors 8 are arranged oppositely; the water outlet 9 is arranged below the pump body 1, and the water outlet 9 is symmetrically and intensively arranged at the bottom of the pump body 1.
Further, the bottom of the pump body 1 is provided with a fixed base, and the side edge of the fixed base is provided with a fixed mounting structure.
Further, the pump shaft 5 is axially distributed in the pump body 1, and the impellers 7 are horizontally and evenly distributed in the double-opening working cavity.
Furthermore, two groups of corresponding annular fluid directors 8 are respectively arranged at the upper end and the lower end in the double-opening working cavity, and the output end of the annular fluid director 8 at the lower end corresponds to the position of the water outlet 9.
Further, a polymer smooth coating is arranged on the outer side of the impeller 7.
The working principle is as follows: a pump cover 2 is arranged at the position above the pump body 1, and two sides of the pump cover 2 are respectively provided with a corresponding water inlet 3; a pump cavity 4 is arranged in the pump body 1, a pump shaft 5 is installed in the pump body 1 in a penetrating mode, a shaft sleeve 6 is arranged on the pump shaft 5, two ends of the shaft sleeve 6 fix an impeller 7 on the pump shaft 5 through shaft sleeve nuts, and a polymer smooth coating is arranged on the outer side of the impeller 7 to prevent the impeller 7 from being abraded due to water flow scouring; the pump cavity 4 is divided into double-opening working cavities along the central position of the pump shaft 5, and the impeller 7 is fixed in the double-opening working cavities; an annular fluid director 8 is arranged below the water inlet 3, the annular fluid director 8 is fixed on the inner wall of the pump cavity 4, and the output end of the annular fluid director 8 corresponds to the upper end of the impeller 7; the annular fluid director 8 concentrates and guides the water flow at the water inlet 2 to the impeller 7, thereby enhancing the water flow diffusion kinetic energy and improving the energy conversion efficiency;
another annular fluid director 8 is arranged below the impeller 7, and the two annular fluid directors 8 are arranged oppositely; the water outlet 9 is arranged below the pump body 1, the water outlet 9 is symmetrically and intensively arranged at the bottom of the pump body 1, and the water to be discharged is guided by the annular fluid director 8, so that the water flow direction is more centralized, and the energy loss is avoided.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a high-efficient energy-saving multi-stage middle-open double entry pump which characterized in that: comprises a pump body (1), an impeller (7) and an annular fluid director (8); a pump cover (2) is arranged at the position above the pump body (1), and two sides of the pump cover (2) are respectively provided with a corresponding water inlet (3); a pump cavity (4) is arranged in the pump body (1), the pump shaft (5) is installed in the pump body (1) in a penetrating mode, a shaft sleeve (6) is arranged on the pump shaft (5), and impellers (7) are fixed on the pump shaft (5) through shaft sleeve nuts at two ends of the shaft sleeve (6); the pump cavity (4) is divided into double-opening working cavities along the center position of the pump shaft (5), and the impeller (7) is fixed in the double-opening working cavities; an annular fluid director (8) is arranged below the water inlet (3), the annular fluid director (8) is fixed on the inner wall of the pump cavity (4), and the output end of the annular fluid director (8) corresponds to the upper end of the impeller (7); another annular fluid director (8) is arranged below the impeller (7), and the two annular fluid directors (8) are arranged oppositely; a water outlet (9) is arranged below the pump body (1), and the water outlets (9) are symmetrically and intensively arranged at the bottom of the pump body (1).
2. The high-efficiency energy-saving multistage middle-open double-suction pump as claimed in claim 1, characterized in that: the pump body (1) bottom is provided with fixed baseplate, and the fixed baseplate side is provided with fixed mounting structure.
3. The high-efficiency energy-saving multistage middle-open double-suction pump as claimed in claim 1, characterized in that: the pump shaft (5) is axially distributed in the pump body (1), and the impellers (7) are horizontally and evenly distributed in the double-opening working cavity.
4. The high-efficiency energy-saving multistage middle-open double-suction pump as claimed in claim 1, characterized in that: two groups of corresponding annular fluid directors (8) are respectively arranged at the upper end and the lower end in the double-opening working cavity, and the output end of the annular fluid director (8) at the lower end corresponds to the position of the water outlet (9).
5. The high-efficiency energy-saving multistage middle-open double-suction pump as claimed in claim 1, characterized in that: and a polymer smooth coating is arranged on the outer side of the impeller (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020803711.3U CN212479696U (en) | 2020-05-12 | 2020-05-12 | High-efficiency energy-saving multistage middle-open double-suction pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020803711.3U CN212479696U (en) | 2020-05-12 | 2020-05-12 | High-efficiency energy-saving multistage middle-open double-suction pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212479696U true CN212479696U (en) | 2021-02-05 |
Family
ID=74459495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020803711.3U Active CN212479696U (en) | 2020-05-12 | 2020-05-12 | High-efficiency energy-saving multistage middle-open double-suction pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212479696U (en) |
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2020
- 2020-05-12 CN CN202020803711.3U patent/CN212479696U/en active Active
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