CN2630537Y - Balance drum axial fixing device for hydrogenation high-pressure pump - Google Patents
Balance drum axial fixing device for hydrogenation high-pressure pump Download PDFInfo
- Publication number
- CN2630537Y CN2630537Y CN 03264518 CN03264518U CN2630537Y CN 2630537 Y CN2630537 Y CN 2630537Y CN 03264518 CN03264518 CN 03264518 CN 03264518 U CN03264518 U CN 03264518U CN 2630537 Y CN2630537 Y CN 2630537Y
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- CN
- China
- Prior art keywords
- balancing drum
- balancing
- pump
- drum
- head spiral
- 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 - Lifetime
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Abstract
An axial fixing device for a balancing-drum of a high-pressure hydrogenization pump is applicable to the field of petrochemical industry, water supply of the boiler, and water injection pump, which comprises a pump axle 1, a multistage pump final blade wheel 2, a balancing-drum key 3, a multi-head spiral slot type balancing drum 4, a screw 5, a balancing drum retainer ring 6, a balancing drum binding ring 7 and a balancing drum jacketing 8. The pump axle is provided with the multistage pump final blade wheel 2, the multi-head spiral through style balancing drum 4 and the balancing drum binding ring 7, while the balancing drum binding ring 6 jacketed outside balancing drum binding ring 7, and the multi-head spiral through style balancing drum 4 and the balancing drum binding ring 6 are fixed with the screw 5. The pump axle 1 is provided with the balancing drum key 3, and the balancing drum coordinates with the pump axle by adopting interference; the structure of multi-head spiral through-style of round outer surface is axially fixed in an open loop and can thoroughly avoid the leakage of the medium along the round outer surface of the pump axle, so as to greatly improve the reliability of the devices.
Description
Relate to the field
The utility model relates to a kind of hydrogenation high-pressure service pump balancing drum axial restraint device that can be applicable to aspects such as petrochemical industry, boiler feed water, water-flooding pump for oil field.
Background technique
The hydrogenation high-pressure service pump that uses in the oil refinery hydrogenation plant is made according to the API610 standard design, and its structure belongs to BB5 (bivalve body segment segmentation multistage centrifugal pump), and this pump balance sysmte adopts single balancing drum structure of high reliability substantially.Wherein balancing drum mainly contains thread type and clasp type in the axial restraint mode.The main thread type that adopts of domestic pump manufacturer man, the fixing balancing drum defective of thread type mainly contains: (1) drum adopts Spielpassung with axle, and medium has leakage, and the pump shaft of (2) thread type structure exists stress to concentrate, and reduces the operational safety of pump shaft greatly.
Technology contents
The purpose of this utility model is to provide a kind of balancing drum and pump shaft to adopt interference fit; Cylindrical multi-head spiral groove structure; The open loop type axial restraint can thoroughly be stopped the leakage of medium along the pump shaft periphery, improves the hydrogenation high-pressure service pump balancing drum axial restraint device of the reliability of equipment greatly.
The utility model is achieved in that balancing drum 4, screw 5, balancing drum back-up ring 6, balancing drum snap ring 7, the balance set 8 that comprises pump shaft 1, multistage pump impeller 2, balancing drum key 3, multi-head spiral slot type, balancing drum 4, the balancing drum snap ring 7 of multistage pump impeller 2, multi-head spiral slot type are installed on the pump shaft 1 successively, the balancing drum snap ring 7 outer balancing drum back-up rings 6 that are with, fixing between the balancing drum 4 of multi-head spiral slot type and the balancing drum back-up ring 6 by screw 5, on pump shaft 1, also be furnished with balancing drum key 3.
The utility model also adopts following technological scheme:
Balancing drum snap ring 7 leaves split type snap ring structure in being.
Advantage of the present utility model is: balancing drum and pump shaft adopt interference fit; Cylindrical multi-head spiral groove structure; The open loop type axial restraint can thoroughly be stopped the leakage of medium along the pump shaft periphery, improves the reliability of equipment greatly
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 opens split type balancing drum snap ring structure diagram in being.
Concrete enforcement
As shown in Figure 1, balancing drum 4, screw 5, balancing drum back-up ring 6, balancing drum snap ring 7, balance set 8 by pump shaft 1, multistage pump impeller 2, balancing drum key 3, multi-head spiral slot type are formed, balancing drum axial restraint structure assemble sequence: multistage pump impeller 2---balancing drum key 3---hot charging balancing drum 4---flat very bulging snap ring 7---balancing drum back-up ring 6---screw 5
In balancing drum cylindrical design multi-head spiral groove is arranged, it act as variation to pressure the fine setting effect, avoid high-pressure service pump starting-impact, form the volumetric efficiency that spiral seal improves pump.
Open split type snap ring structure during balancing drum snap ring 7 is designed to, thereby reduce the stress raisers of axle 1, and be more convenient for installing and dismounting.
Claims (2)
1. hydrogenation high-pressure service pump balancing drum axial restraint device, comprise pump shaft (1), multistage pump impeller (2), balancing drum key (3), the balancing drum of multi-head spiral slot type (4), screw (5), balancing drum back-up ring (6), balancing drum snap ring (7), balance set (8), it is characterized in that: multistage pump impeller (2) is installed on the pump shaft (1) successively, the balancing drum of multi-head spiral slot type (4), balancing drum snap ring (7), the outer balancing drum back-up ring (6) that is with of balancing drum snap ring (7), fixing between balancing drum of multi-head spiral slot type (4) and the balancing drum back-up ring (6) by screw (5), on pump shaft (1), also be furnished with balancing drum key (3).
2. hydrogenation high-pressure service pump balancing drum axial restraint device according to claim 1, it is characterized in that: balancing drum snap ring (7) leaves split type snap ring structure in being.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03264518 CN2630537Y (en) | 2003-06-18 | 2003-06-18 | Balance drum axial fixing device for hydrogenation high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03264518 CN2630537Y (en) | 2003-06-18 | 2003-06-18 | Balance drum axial fixing device for hydrogenation high-pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2630537Y true CN2630537Y (en) | 2004-08-04 |
Family
ID=34297340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03264518 Expired - Lifetime CN2630537Y (en) | 2003-06-18 | 2003-06-18 | Balance drum axial fixing device for hydrogenation high-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2630537Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154027A (en) * | 2014-08-08 | 2014-11-19 | 江苏海狮泵业制造有限公司 | Nuclear power chemical vessel make-up pump with high hydraulic component symmetric arrangement reliability |
| CN110206734A (en) * | 2018-02-28 | 2019-09-06 | 中国石油天然气股份有限公司 | Centrifugal pump shaft and conveying equipment |
-
2003
- 2003-06-18 CN CN 03264518 patent/CN2630537Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154027A (en) * | 2014-08-08 | 2014-11-19 | 江苏海狮泵业制造有限公司 | Nuclear power chemical vessel make-up pump with high hydraulic component symmetric arrangement reliability |
| CN110206734A (en) * | 2018-02-28 | 2019-09-06 | 中国石油天然气股份有限公司 | Centrifugal pump shaft and conveying equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130618 Granted publication date: 20040804 |