CN202326266U - Double-stage and double-suction centrifugal pump - Google Patents
Double-stage and double-suction centrifugal pump Download PDFInfo
- Publication number
- CN202326266U CN202326266U CN2011204460203U CN201120446020U CN202326266U CN 202326266 U CN202326266 U CN 202326266U CN 2011204460203 U CN2011204460203 U CN 2011204460203U CN 201120446020 U CN201120446020 U CN 201120446020U CN 202326266 U CN202326266 U CN 202326266U
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- pump
- pump housing
- pump body
- sealing ring
- double
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- Expired - Fee Related
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Abstract
The utility model provides a double-stage and double-suction centrifugal pump, which comprises a rotation shaft, a pump body and pump covers, wherein the pump covers are positioned at two external sides of the pump body; the rotation shaft is positioned in the pump body and two ends of the rotation shaft pass through the two pump covers; a sewage discharging system and an oil discharging system are arranged under the pump body; a connecting pipe is arranged to the upper side of the pump body; a gas-releasing washing system is mounted on the connecting pipe; the face where the pump body is in contact with the rotation shaft is provided with a sealing ring of a low-pressure end mechanical sealing cavity, a back pump body sealing ring, and a sealing ring of a high-pressure end mechanical sealing cavity in turn; and pump body sealing rings are further arranged between the sealing ring of the low-pressure end mechanical sealing cavity and the back pump body sealing ring, and between the back pump body sealing ring and the sealing ring of the high-pressure end mechanical sealing cavity on the rotation shaft. The double-stage and double-suction centrifugal pump is good in sealing performance, difficult to pollute environments, safe and reliable, and long in service life.
Description
Technical field
The utility model relates to a kind of centrifugal pump, is specially a kind of twin-stage double-suction centrifugal pump.
Background technique
The API610 standard of API's promulgation is the standard that world's pump industry has significantly affecting power.In the mid-90 in 20th century, API has issued API610 the 8th edition " petroleum industry, heavy chemical industry and gas industrial centrifugal pump " standard for solving existing problem in the standard.This standard all proposes stricter requirement at the aspects such as stability, reliability, operating characteristics and working life of pump, be mainly reflected in: many aspects such as sealing, material, vibration, bearing, rotor dynamics, auxiliary system.It still is to manufacture and design multistage pump according to JB/T8059-96 " high pressure water feeding pump for boiler " standard, API610 sixth version, the 7th edition standard that the pump industry of China is used more for horizontal multi-stage centrifugal pump at present.Because the develop rapidly of industries such as electric power, oil, chemical industry and the requirements at the higher level of environmental protection; According to JB/T8059-96 " high pressure water feeding pump for boiler " standard, API610 sixth version, the 7th edition multistage pump that standard designs and manufactures; There has been narrow limitation clearly in the use, phenomenons such as pump shaft fracture, seal leakage, bearing life weak point, befouling environment usually occurred.
The model utility content
The technical problem that the utility model solved is to provide a kind of twin-stage double-suction centrifugal pump, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solved adopts following technological scheme to realize:
The twin-stage double-suction centrifugal pump; Comprise rotatingshaft, the pump housing and pump cover, said pump cover covers on the said pump housing, and said rotatingshaft is positioned at said pump housing inside and two ends pass the said pump housing; Said pump housing below is provided with drainage and oil draining system; Said pump housing top is provided with connecting tube, and the venting rinse-system is installed in the said connecting tube, is provided with low voltage terminal mechanical seal chamber seal ring, pump housing increasing back sealing ring, high voltage terminal mechanical seal chamber seal ring on the surface of contact of the said pump housing and rotatingshaft successively; On the said rotatingshaft between said low voltage terminal mechanical seal chamber seal ring and the pump housing increasing back sealing ring, be equipped with casing ring between said pump housing increasing back sealing ring and the high voltage terminal mechanical seal chamber seal ring.
In the utility model, said pump cover is provided with integrated mechanical sealing portion dress outward.Be close to said integrated mechanical sealing portion and be equiped with oil blocking cover.
Beneficial effect
The utility model is provided with multiple sealing configuration, and favorable sealing property adds the setting of venting rinse-system, drainage and oil draining system, is not easy befouling environment, has environmental-protecting performance preferably, and the Bearing Installation reliability and durability, long service life.
Description of drawings
Fig. 1 is the structural drawing of twin-stage double-suction centrifugal pump.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1; The structural drawing of twin-stage double-suction centrifugal pump, the twin-stage double-suction centrifugal pump comprises rotatingshaft 13, the pump housing 1 and pump cover 2; Said pump cover 2 covers on the said pump housing 1; Said rotatingshaft 13 is positioned at the said pump housing 1 inside and two ends pass the said pump housing 1, and the said pump housing 1 below is provided with drainage 6 and oil draining system 7, and the said pump housing 1 top is provided with connecting tube 4; Venting rinse-system 5 is installed in the said connecting tube 4, is provided with low voltage terminal mechanical seal chamber seal ring 9, pump housing increasing back sealing ring 12, high voltage terminal mechanical seal chamber seal ring 10 successively on the surface of contact of the said pump housing 1 and rotatingshaft 13; On the said rotatingshaft between said low voltage terminal mechanical seal chamber seal ring 9 and the pump housing increasing back sealing ring 12, be equipped with casing ring 11 between said pump housing increasing back sealing ring 12 and the high voltage terminal mechanical seal chamber seal ring 10.
In the utility model, be provided with integrated mechanical sealing portion outside the said pump cover 2 and adorn 3.Being close to said integrated mechanical sealing portion adorns 3 and is provided with oil blocking cover 8.
More than show and described basic principle of the utility model and the advantage of major character and the utility model; The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described, under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications; These variations and improvement all fall in the utility model scope that requires protection, and the utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. twin-stage double-suction centrifugal pump; Comprise rotatingshaft, the pump housing and pump cover; Said pump cover covers on the said pump housing, and said rotatingshaft is positioned at said pump housing inside and two ends pass the said pump housing, it is characterized in that; Said pump housing below is provided with drainage and oil draining system; Said pump housing top is provided with connecting tube, and the venting rinse-system is installed in the said connecting tube, is provided with low voltage terminal mechanical seal chamber seal ring, pump housing increasing back sealing ring, high voltage terminal mechanical seal chamber seal ring on the surface of contact of the said pump housing and rotatingshaft successively; On the said rotatingshaft between said low voltage terminal mechanical seal chamber seal ring and the pump housing increasing back sealing ring, be equipped with casing ring between said pump housing increasing back sealing ring and the high voltage terminal mechanical seal chamber seal ring.
2. twin-stage double-suction centrifugal pump according to claim 1 is characterized in that, said pump cover is provided with integrated mechanical sealing portion dress outward.
3. twin-stage double-suction centrifugal pump according to claim 2 is characterized in that, is close to said integrated mechanical sealing portion and is equiped with oil blocking cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204460203U CN202326266U (en) | 2011-11-13 | 2011-11-13 | Double-stage and double-suction centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204460203U CN202326266U (en) | 2011-11-13 | 2011-11-13 | Double-stage and double-suction centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326266U true CN202326266U (en) | 2012-07-11 |
Family
ID=46438248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204460203U Expired - Fee Related CN202326266U (en) | 2011-11-13 | 2011-11-13 | Double-stage and double-suction centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326266U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828959A (en) * | 2012-09-18 | 2012-12-19 | 南方泵业股份有限公司 | Double-suction multistage horizontal type horizontal split pump |
| CN102828960A (en) * | 2012-09-18 | 2012-12-19 | 南方泵业股份有限公司 | Double suction multistage horizontal split pump |
| CN106640667A (en) * | 2017-03-02 | 2017-05-10 | 中国农业大学 | Flow diversion shell type double-stage double-suction centrifugal pump |
-
2011
- 2011-11-13 CN CN2011204460203U patent/CN202326266U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828959A (en) * | 2012-09-18 | 2012-12-19 | 南方泵业股份有限公司 | Double-suction multistage horizontal type horizontal split pump |
| CN102828960A (en) * | 2012-09-18 | 2012-12-19 | 南方泵业股份有限公司 | Double suction multistage horizontal split pump |
| CN102828959B (en) * | 2012-09-18 | 2014-12-03 | 南方泵业股份有限公司 | Double-suction multistage horizontal type horizontal split pump |
| CN106640667A (en) * | 2017-03-02 | 2017-05-10 | 中国农业大学 | Flow diversion shell type double-stage double-suction centrifugal pump |
| CN106640667B (en) * | 2017-03-02 | 2019-01-22 | 中国农业大学 | A kind of twin-stage double suction centrifugal pump of water conservancy diversion shell-type |
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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 |
Granted publication date: 20120711 Termination date: 20141113 |
|
| EXPY | Termination of patent right or utility model |