CN204646750U - Centrifugal pump hydraulic power part structure - Google Patents
Centrifugal pump hydraulic power part structure Download PDFInfo
- Publication number
- CN204646750U CN204646750U CN201520288369.7U CN201520288369U CN204646750U CN 204646750 U CN204646750 U CN 204646750U CN 201520288369 U CN201520288369 U CN 201520288369U CN 204646750 U CN204646750 U CN 204646750U
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- CN
- China
- Prior art keywords
- pump
- fixed
- impeller
- pump housing
- guide bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of centrifugal pump hydraulic power part structure, and this centrifugal pump hydraulic power part structure is made up of the pump housing, impeller, pump cover, guide bearing, axle sleeve, gland, impeller nut, key, throat's lining, wear ring, screw, pin, fastening piece etc.The feature of the hydraulic part of this centrifugal pump is that size is large especially, the axial end of the ingress impeller nut of impeller has added radial guide bearing and has solved the requirement that the axle that size that large-scale single-stage cantilever centrifugal pump exists causes too is greatly oversize, amount of deflection large, the vibration values of pump is large, can not meet vibration index, carry out auxiliary radial bearing, increase the stability of rotor.Guide bearing adopts the mode of selflubricating to also simplify the structure of whole system.
Description
Technical field:
The utility model relates to a kind of centrifugal pump hydraulic power part structure.
Background technique:
In recent years, the large discharge that some large-scale chemical industries and large-scale water treatment plant need some large-scale, high-lift single-stage cantilever centrifugal pumping apparatus, but the pump of domestic this kind of parameter does not have, peak rate of flow Yue Keda 2000m
3/ h.General single-stage cantilever Centrifugal Pump is general all also just at 6.3 ~ 400m
3/ h, the single-stage that ripe product is maximum hangs centrifugal pump also with regard to GR type single stage single suction cantilever type pressure centrifugal pump, and peak rate of flow is also with regard to 900m
3/ h, lift maximum value is at about 200m.Vibration values is maximum also all can not more than 7.1mm/s.If but this kind of pump increased flow capacity, size becomes large again, and vibration does not meet design requirement.
Summary of the invention:
The purpose of this utility model be to provide a kind of type, the structure of the hydraulic part of single-stage, single suction, cantilever centrifugal pump.The technical solution of the utility model is: impeller (2) is arranged on axle (7) by key (23), impeller nut (9) is equipped to be locked on axle (7), impeller nut (9) adopts threaded (21) to be fixed on axle (7), axle sleeve (10) is fixed on axle (7) by key (22), axle sleeve (10) is fixed near the suction port side of the pump housing (1) back-up ring (13), and guide bearing (11) is arranged in the loculus (24) that the pump housing (1) protrudes, guide bearing (11) is enclosed within axle sleeve (10), guide bearing (11) is fixed with screw (19) and gland (12) near impeller nut (9) side, guide bearing (11) is fixed with gland (14) and screw (18) near the pump housing (1) suction port side.A pipe fitting (3) is adopted to be connected between the exit portion of the pump housing (1) and the entrance of the pump housing (1), first wear ring (8) has been installed between the preoral loop of the pump housing (1) and impeller (2), first wear ring (8) employing is marked closely screw (15) and is fixed on the pump housing (1), between the deutostoma loop section of impeller (2) and pump cover (4), the second wear ring (5) is installed, second wear ring (5) employing first is marked closely screw (16) and is fixed on pump cover (4), pump cover (4) adopts fastening piece (17) to be fixed on the pump housing (1), throat's lining (6) is marked closely screw (20) by second and is fixed on pump cover (4).
Working procedure of the present utility model is: after medium is sucked by the suction port of the pump housing (1), after flowing through impeller (2) energy increasing afterwards, outside the discharge opening excavationg pump by the pump housing (1).The water of drawing from the pump housing (1) outlet port passes through pipe fitting (3) and imports in the loculus (24) of the ingress of the pump housing (1), then lubricates guide bearing (11).
Technological merit of the present utility model is:
1, the utility model is a kind of centrifugal pump hydraulic power part structure, and feature is that the parameter of pump is large, and flow can reach 2000m
3about/h.So the size of pump is large especially, about ratio lambda=1.8 of the coefficient of the Hydraulic Design.
2, because the single-stage cantilever of prior art is too large, axle is oversize, and amount of deflection is large, the vibration values of pump is large, can not meet index, and therefore the utility model have employed impeller mouth and enters and added radial guiding bearing at the spindle nose end place of leaf nut, be used for auxiliary radial bearing, increase the stability of rotor.We with a flow parameter for Q=1650m
3/ h, parameter designing centrifugal pump of lift not 80m.This revolution speed 1480, specific speed n
s=137.The vibration values critical field of this pump is for being less than 7.1mm/s.After adding guide bearing, product actual measurement vibration values is less than 4.5mm/s.
3, feature of the present utility model is that the water of the radial guide shaft pump of pump itself is to carry out the mode of selflubricating, a hole is opened from the outlet of the pump housing, connect the ingress of an elbow sections to pump, lead to radial guiding bearing by pump body and carry out water lubrication, simplify the structure of pump-unit, do not need additional auxiliary flushing line system.
Accompanying drawing illustrates:
Fig. 1 is a kind of centrifugal pump hydraulic power part structure of the utility model
Fig. 2 guide bearing part-structure figure enlarged diagram
Embodiment:
As shown in Figure 1: a kind of centrifugal pump hydraulic power part structure, impeller 2 is arranged on axle 7 by key 23, impeller nut 9 is equipped to be locked on axle 7, impeller nut 9 adopts threaded 21 to be fixed on axle 7, axle sleeve 10 is fixed on axle 7 by key 22, axle sleeve 10 is fixed with back-up ring 13 near the suction port side of the pump housing 1, and guide bearing 11 is arranged in the loculus 24 of the pump housing 1 protrusion, guide bearing 11 is enclosed within axle sleeve 10, as shown in Figure 2, guide bearing 11 is fixed with screw 19 and gland 12 near impeller nut 9 side, guide bearing 11 is fixed with gland 14 and screw 18 near the pump housing 1 suction port side.A pipe fitting 3 is adopted to be connected between the exit portion of the pump housing 1 and the entrance of the pump housing 1, first wear ring 8 has been installed between the preoral loop of the pump housing 1 and impeller 2, first wear ring 8 employing is marked closely screw 15 and is fixed on the pump housing 1, second wear ring 5 has been installed between the deutostoma loop section of impeller 2 and pump cover 4, second wear ring 5 adopts first to mark closely screw 16 to be fixed on pump cover 4, pump cover 4 adopts fastening piece 17 to be fixed on the pump housing 1, and throat's lining 6 is marked closely screw 20 by second and is fixed on pump cover 4.
Claims (2)
1. a centrifugal pump hydraulic power part structure, it is characterized in that: impeller (2) is arranged on axle (7) by key (23), impeller nut (9) is equipped to be locked on axle (7), impeller nut (9) adopts threaded (21) to be fixed on axle (7), axle sleeve (10) is fixed on axle (7) by key (22), axle sleeve (10) is fixed near the suction port side of the pump housing (1) back-up ring (13), guide bearing (11) is arranged in the loculus (24) that the pump housing (1) protrudes, guide bearing (11) is enclosed within axle sleeve (10), guide bearing (11) is fixed with screw (19) and gland (12) near impeller nut (9) side, guide bearing (11) is fixed with gland (14) and screw (18) near the pump housing (1) suction port side.
2. centrifugal pump hydraulic power part structure according to claim 1, it is characterized in that: between the exit portion of the pump housing (1) and the entrance of the pump housing (1), adopt a pipe fitting (3) to be connected, first wear ring (8) has been installed between the preoral loop of the pump housing (1) and impeller (2), first wear ring (8) employing is marked closely screw (15) and is fixed on the pump housing (1), between the deutostoma loop section of impeller (2) and pump cover (4), the second wear ring (5) is installed, second wear ring (5) employing first is marked closely screw (16) and is fixed on pump cover (4), pump cover (4) adopts fastening piece (17) to be fixed on the pump housing (1), throat's lining (6) is marked closely screw (20) by second and is fixed on pump cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520288369.7U CN204646750U (en) | 2015-05-07 | 2015-05-07 | Centrifugal pump hydraulic power part structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520288369.7U CN204646750U (en) | 2015-05-07 | 2015-05-07 | Centrifugal pump hydraulic power part structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646750U true CN204646750U (en) | 2015-09-16 |
Family
ID=54099510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520288369.7U Expired - Fee Related CN204646750U (en) | 2015-05-07 | 2015-05-07 | Centrifugal pump hydraulic power part structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204646750U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832448A (en) * | 2015-05-07 | 2015-08-12 | 哈尔滨电气动力装备有限公司 | Hydraulic part structure of centrifugal pump |
| CN116624435A (en) * | 2023-04-18 | 2023-08-22 | 烟台龙港泵业股份有限公司 | Back flushing central liquid outlet submerged pump and vertical cylinder bag pump |
-
2015
- 2015-05-07 CN CN201520288369.7U patent/CN204646750U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832448A (en) * | 2015-05-07 | 2015-08-12 | 哈尔滨电气动力装备有限公司 | Hydraulic part structure of centrifugal pump |
| CN116624435A (en) * | 2023-04-18 | 2023-08-22 | 烟台龙港泵业股份有限公司 | Back flushing central liquid outlet submerged pump and vertical cylinder bag pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150916 |