CN2769568Y - Centrifugal pump assembly seal - Google Patents
Centrifugal pump assembly seal Download PDFInfo
- Publication number
- CN2769568Y CN2769568Y CN 200520025247 CN200520025247U CN2769568Y CN 2769568 Y CN2769568 Y CN 2769568Y CN 200520025247 CN200520025247 CN 200520025247 CN 200520025247 U CN200520025247 U CN 200520025247U CN 2769568 Y CN2769568 Y CN 2769568Y
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- CN
- China
- Prior art keywords
- seal
- sealing
- utility
- model
- stationary
- 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 discloses a combination seal for a centrifugal pump, which comprises a main shaft 1, a sealing 2, a sealing box 3, a stationary ring seat 4, a stationary ring 5, a sealing ring 6 for the stationary ring seat 4, a fixing pin 7 for the stationary ring seat, a moving ring seat 8, a moving ring 9, a spring 10 and an oil seal 11, wherein an annular space 12 in which stuffing 13 is contained is arranged between a casing of the sealing box 3 and the main shaft 1; the outer end of the stuffing 13 is provided with a press cover 14, and the press cover 14 is connected to the sealing box 3 by a fastening bolt 15. In the utility model, the mechanical seal and the stuffing seal are organically combined together; thus, the utility model has the advantages of compact structure, abrasion resistance, high durability and convenient assembly and use.
Description
Affiliated technical field
The utility model relates to a kind of parts of centrifugal solid-liquid mortar pump, is meant a kind of sealing of centrifugal sand stock pump especially.
Background technique
In known technology, the existing axle envelope that is applied to the centrifugal mortar pump of petroleum production conveying drilling fluid mainly is mechanical seal.Mechanical seal, it is little to have an amount of leakage, long service life, advantage such as applied widely.But also have shortcoming, in case mechanical seal is revealed, termination of pumping is at once changed.Oil drilling has certain continuity, can not arbitrarily stop in the drilling process to bore.Otherwise can cause very big economic loss.If in drilling process, the axle envelope of mortar pump has been revealed also not termination of pumping, wait the drilling well termination of pumping again that comes to an end to repair, can waste drilling fluid, befouling environment causes damage.
Summary of the invention
The purpose of the utility model is to overcome the above-mentioned deficiency of prior art, and a kind of improved centrifugal pump sealing is provided, its novel structure, and sealability is strong, and is safe and reliable, avoided loss.
For reaching above-mentioned purpose, the utility model is taked following technological scheme: the utility model comprises: main shaft, seal rack, sealing case, stationary seat, stationary ring, stationary ring seal ring, stationary seat fixing pin, rotating seat, rotating ring, spring, oil sealing, it is characterized in that: between sealing case housing and main shaft, be provided with annular space, filler is housed in the annular space, the filler outer end is provided with gland, and gland is connected on the sealing case by clamping bolt.
The utility model is taked technique scheme, has following beneficial effect: mechanical seal of the present utility model is for sealing commonly used, when it takes place to reveal, can not termination of pumping, and the rotation clamping bolt compresses filler, makes it produce seal action.The utility model combines mechanical seal and packing seal, and take nested form, and having shortened the jib-length of impeller and adjacent bearing, the circle of effectively having controlled impeller is beated and the form and position tolerance of total run-out, reduce focus, make the mortar pump running steadily.The utility model compact structure, wear-resistant, durable in use, assemble easy to use.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated:
Fig. 1 is the utility model structure diagram.
Mark among the figure: 1-main shaft, 2-seal rack, 3-sealing case, 4-stationary seat, 5-stationary ring, 6-stationary ring seal ring, 7-stationary seat fixing pin, 8-rotating seat, 9-rotating ring, 10-spring, 11-oil sealing, 12-annular space, 13-filler, 14-gland, 15-clamping bolt.
Embodiment
By shown in Figure 1, the utility model comprises: main shaft 1, seal rack 2, sealing case 3, stationary seat 4, stationary ring 5, stationary ring seal ring 6, stationary seat fixing pin 7, rotating seat 8, rotating ring 9, spring 10, oil sealing 11, between sealing case 3 outer end housings and main shaft 1, be provided with annular space 12,12 are equipped with filler 13 in the annular space, filler 13 outer ends are provided with gland 14, and gland 14 is connected on the sealing case 3 by clamping bolt 15.Under the utility model normal working, for avoiding wearing and tearing, packing seal does not play a role.
Claims (1)
1. centrifugal pump combination seal, it comprises: main shaft (1), seal rack (2), sealing case (3), stationary seat (4), stationary ring (5), stationary ring seal ring (6), stationary seat fixing pin (7), rotating seat (8), rotating ring (9), spring (10), oil sealing (11), it is characterized in that: between sealing case (3) housing and main shaft (1), be provided with annular space (12), filler (13) is housed in the annular space (12), filler (13) outer end is provided with gland (14), and gland (14) is connected on the sealing case (3) by clamping bolt (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520025247 CN2769568Y (en) | 2005-02-01 | 2005-02-01 | Centrifugal pump assembly seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520025247 CN2769568Y (en) | 2005-02-01 | 2005-02-01 | Centrifugal pump assembly seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2769568Y true CN2769568Y (en) | 2006-04-05 |
Family
ID=36690650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520025247 Expired - Fee Related CN2769568Y (en) | 2005-02-01 | 2005-02-01 | Centrifugal pump assembly seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2769568Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192182A (en) * | 2011-05-17 | 2011-09-21 | 浙江天德泵业有限公司 | Seal combined structure of centrifugal pump |
-
2005
- 2005-02-01 CN CN 200520025247 patent/CN2769568Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192182A (en) * | 2011-05-17 | 2011-09-21 | 浙江天德泵业有限公司 | Seal combined structure of centrifugal pump |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060405 Termination date: 20140201 |