CN210889335U - 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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- CN210889335U CN210889335U CN201921350679.1U CN201921350679U CN210889335U CN 210889335 U CN210889335 U CN 210889335U CN 201921350679 U CN201921350679 U CN 201921350679U CN 210889335 U CN210889335 U CN 210889335U
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- pump
- impeller
- guide vane
- double
- card
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Abstract
The utility model discloses a high-efficiency energy-saving multistage middle-open double-suction pump, which comprises a pump body, an impeller, a guide vane fan and an anti-abrasion card; the pump cavity is divided into double-opening working cavities along the center of the pump shaft, the impeller is fixed in the double-opening working cavities, a plurality of connecting transverse grooves which are uniformly spaced are formed in the outer edge of the impeller, and guide vane fans are obliquely arranged on the connecting transverse grooves; the guide vane fan is of a fan-shaped structure with a narrow upper part and a wide lower part, the guide vane fan is obliquely distributed in the double-opening working cavity from top to bottom along the outer edge of the impeller, when the inner wall of the flow channel of the water pump and the impeller pass through the water surface, the guide vane fan deflects along with the flow direction of water flow to assist the flow of the water flow, so that the friction coefficient of the flow channel in the water pump is reduced, the head loss is reduced, and the hydraulic efficiency is improved; be provided with the abrasionproof card on the blotter ring, the abrasionproof decreases the card outside and is provided with mechanical seal, prevents that mechanical seal and gland from producing mechanical wear through abrasionproof card and blotter ring, improves volumetric efficiency and mechanical efficiency.
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 washing of water flow, the inner wall of a flow passage of the water pump and the water passing surface of the impeller become rough and uneven, the friction coefficient of the flow passage in the water pump is increased, and in addition, the flow velocity of water in the pump is large, the head loss is increased, and the hydraulic efficiency is reduced. Since the pump is used for a long time, leakage and resistance increase are caused by mechanical abrasion, so that volumetric efficiency and mechanical efficiency are reduced. Due to the reasons, the performance of the water pump is poor, the operation efficiency is reduced by 2-5%, and 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, a guide vane fan and an anti-abrasion card; 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; the outer edge of the impeller is provided with a plurality of connecting transverse grooves which are uniformly spaced, and the connecting transverse grooves are obliquely provided with guide vane fans; a sealing packing is arranged between the shaft sleeve and the pump body, a sealing gland is arranged on the sealing packing, and a buffer gasket is arranged on the sealing gland; the buffer gasket is provided with an anti-abrasion card, and the outer side of the anti-abrasion card is provided with a mechanical seal.
Preferably, the pump shaft is axially distributed in the pump body, the pump body is provided with two fixing clamping shafts, and the pump shaft is fixed in the pump body through the fixing clamping shafts.
Preferably, the guide vane fan is of a fan-shaped structure with a narrow top and a wide bottom, and the guide vane fan is obliquely distributed in the double-opening working cavity from top to bottom along the outer edge of the impeller.
Preferably, the inside fixed basic unit that is of abrasionproof decreases the card, fixed basic unit adopts silicon carbide material to make, and the fixed basic unit outside is provided with diamond powder coating.
Preferably, the outer sides of the impeller and the guide vane fan are provided with polymer smooth coatings.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has simple structure, perfects the defects of the prior double suction pump, and the edge of the outer side of the impeller is provided with a plurality of connecting transverse grooves which are evenly spaced, and the connecting transverse grooves are provided with guide vane fans in an inclined way; the guide vane fan is of a fan-shaped structure with a narrow upper part and a wide lower part, the guide vane fan is obliquely distributed in the double-opening working cavity from top to bottom along the outer edge of the impeller, when the inner wall of the flow channel of the water pump and the impeller pass through the water surface, the guide vane fan deflects along with the flow direction of water flow to assist the flow of the water flow, so that the friction coefficient of the flow channel in the water pump is reduced, the head loss is reduced, and the hydraulic efficiency is improved; be provided with the abrasionproof card on the blotter ring, the abrasionproof decreases the card outside and is provided with mechanical seal, prevents that mechanical seal and gland from producing mechanical wear through abrasionproof card and blotter ring, improves volumetric efficiency and mechanical efficiency.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the impeller structure of the present invention.
In the figure: 1. a pump body; 2. a pump chamber; 3. a pump shaft; 4. a shaft sleeve; 5. an impeller; 6. connecting the transverse grooves; 7. a guide vane fan; 8. sealing and filling; 9. a sealing gland; 910. a cushion washer; 11. a wear-resistant card; 12. and (4) mechanically sealing.
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. 1-2, 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 5, a guide vane fan 7 and an anti-abrasion card 11; a pump cavity 2 is arranged in the pump body 1, a pump shaft 3 is arranged in the pump body 1 in a penetrating mode, a shaft sleeve 4 is arranged on the pump shaft 3, and an impeller 5 is fixed on the pump shaft 3 at two ends of the shaft sleeve 4 through shaft sleeve nuts; the pump cavity 2 is divided into double-opening working cavities along the central position of the pump shaft 3, and the impeller 5 is fixed in the double-opening working cavities; the outer edge of the impeller 5 is provided with a plurality of connecting transverse grooves 6 which are uniformly spaced, and guide vane fans 7 are obliquely arranged on the connecting transverse grooves 6; a sealing packing 8 is arranged between the shaft sleeve 4 and the pump body 1, a sealing gland 9 is arranged on the sealing packing 8, and a buffer gasket 10 is arranged on the sealing gland 9; the buffer gasket 10 is provided with an anti-abrasion card 11, and a mechanical seal 12 is arranged outside the anti-abrasion card 11.
Further, the pump shaft 3 is axially distributed in the pump body 1, two fixing clamping shafts are arranged on the pump body 1, and the pump shaft 3 is fixed in the pump body 1 through the fixing clamping shafts.
Furthermore, the guide vane fan 7 is of a fan-shaped structure with a narrow top and a wide bottom, and the guide vane fan 7 is obliquely distributed in the double-opening working cavity from top to bottom along the outer edge of the impeller 5.
Further, the inside fixed basic unit that is of abrasionproof decreases card 11, fixed basic unit adopts silicon carbide material to make, and the fixed basic unit outside is provided with diamond powder coating.
Furthermore, polymer smooth coatings are arranged on the outer sides of the impeller 5 and the guide vane fan 7.
The working principle is as follows: a pump cavity 2 is arranged in the pump body 1, a pump shaft 3 is arranged in the pump body 1 in a penetrating way, a shaft sleeve 4 is arranged on the pump shaft 3, and two ends of the shaft sleeve 4 fix an impeller 5 on the pump shaft 3 through shaft sleeve nuts; the pump cavity 2 is divided into double-opening working cavities along the central position of the pump shaft 3, and the impeller 5 is fixed in the double-opening working cavities; the outer edge of the impeller 5 is provided with a plurality of connecting transverse grooves 6 which are uniformly spaced, and guide vane fans 7 are obliquely arranged on the connecting transverse grooves 6; the guide vane fan 7 is of a fan-shaped structure with a narrow top and a wide bottom, the guide vane fan 7 is obliquely distributed in the double-opening working cavity from top to bottom along the outer edge of the impeller 5, when the inner wall of the water pump flow channel and the impeller 5 pass through the water surface, the guide vane fan 7 deflects along with the flow direction of water flow to assist the flow of the water flow, so that the friction coefficient of the flow channel in the water pump is reduced, the head loss is reduced, and the hydraulic efficiency is improved; a sealing packing 8 is arranged between the shaft sleeve 4 and the pump body 1, a sealing gland 9 is arranged on the sealing packing 8, and a buffer gasket 10 is arranged on the sealing gland 9; be provided with abrasionproof damage card 11 on the cushion ring 10, the 11 outsides of abrasionproof damage card are provided with mechanical seal 12, and 11 inside for fixed basic unit of abrasionproof damage card, fixed basic unit adopt silicon carbide material to make, and the fixed basic unit outside is provided with diamond powder coating, prevents through abrasionproof damage card 11 and cushion ring 10 that mechanical seal 12 and gland 9 from producing mechanical wear, improves volumetric efficiency and mechanical efficiency.
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 (5), a guide vane fan (7) and an anti-abrasion card (11); a pump cavity (2) is arranged in the pump body (1), the pump shaft (3) is installed in the pump body (1) in a penetrating mode, a shaft sleeve (4) is arranged on the pump shaft (3), and the impeller (5) is fixed on the pump shaft (3) through shaft sleeve nuts at two ends of the shaft sleeve (4); the pump cavity (2) is divided into double-opening working cavities along the center position of the pump shaft (3), and the impeller (5) is fixed in the double-opening working cavities; a plurality of connecting transverse grooves (6) which are uniformly spaced are formed in the outer edge of the impeller (5), and guide vane fans (7) are obliquely arranged on the connecting transverse grooves (6); a sealing packing (8) is arranged between the shaft sleeve (4) and the pump body (1), a sealing gland (9) is arranged on the sealing packing (8), and a buffer gasket (10) is arranged on the sealing gland (9); the buffer gasket (10) is provided with an anti-abrasion card (11), and the outer side of the anti-abrasion card (11) is provided with a mechanical seal (12).
2. The high-efficiency energy-saving multistage middle-open double-suction pump as claimed in claim 1, characterized in that: the pump shaft (3) is axially distributed in the pump body (1), two fixing clamping shafts are arranged on the pump body (1), and the pump shaft (3) is fixed in the pump body (1) through the fixing clamping shafts.
3. The high-efficiency energy-saving multistage middle-open double-suction pump as claimed in claim 1, characterized in that: the guide vane fan (7) is of a fan-shaped structure with a narrow upper part and a wide lower part, and the guide vane fan (7) is obliquely distributed in the double-opening working cavity from top to bottom along the outer edge of the impeller (5).
4. The high-efficiency energy-saving multistage middle-open double-suction pump as claimed in claim 1, characterized in that: the anti-abrasion card (11) is internally provided with a fixed base layer, the fixed base layer is made of silicon carbide materials, and a diamond powder coating is arranged on the outer side of the fixed base layer.
5. The high-efficiency energy-saving multistage middle-open double-suction pump as claimed in claim 1, characterized in that: and polymer smooth coatings are arranged on the outer sides of the impeller (5) and the guide vane fan (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921350679.1U CN210889335U (en) | 2019-08-19 | 2019-08-19 | High-efficiency energy-saving multistage middle-open double-suction pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921350679.1U CN210889335U (en) | 2019-08-19 | 2019-08-19 | High-efficiency energy-saving multistage middle-open double-suction pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210889335U true CN210889335U (en) | 2020-06-30 |
Family
ID=71312029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921350679.1U Expired - Fee Related CN210889335U (en) | 2019-08-19 | 2019-08-19 | High-efficiency energy-saving multistage middle-open double-suction pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210889335U (en) |
-
2019
- 2019-08-19 CN CN201921350679.1U patent/CN210889335U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200630 Termination date: 20210819 |