CN2602199Y - Cantilevered centrifugal pump for chemical engineering - Google Patents
Cantilevered centrifugal pump for chemical engineering Download PDFInfo
- Publication number
- CN2602199Y CN2602199Y CN 03228243 CN03228243U CN2602199Y CN 2602199 Y CN2602199 Y CN 2602199Y CN 03228243 CN03228243 CN 03228243 CN 03228243 U CN03228243 U CN 03228243U CN 2602199 Y CN2602199 Y CN 2602199Y
- Authority
- CN
- China
- Prior art keywords
- mechanical seal
- pump
- bearing
- centrifugal pump
- cantilever type
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a cantilever centrifugal pump in chemical industry and comprises a pump body, an impeller, a pump spindle, a back blade, a mechanical seal, a pump bonnet, a fixed blade, a suspension fork, a bearing, a bearing gland bush, a dust cap, and a mechanical seal cavity. Compared with the prior art, the utility model is arranged with a container mechanical seal structure, a larger mechanical seal cavity and a threaded bearing seal structure, thus ensuring that the pump operation is reliable, and the service life is long.
Description
Technical field:
The utility model relates to a kind of centrifugal pump, particularly a kind of cantilever type single stage centrifugal pump that is used for chemical industry.
Background technique:
In existing technology, there is following shortcoming usually in chemical centrifugal pump: 1, the mechanical seal chamber is less, can't form the medium self-circulation cooling loop, solid particle in the medium will occur and be deposited on the fastness between the mechanical seal, cause mechanical seal to lose floatability and lost efficacy easily; 2, the part of mechanical seal needs a part to install respectively, occurs the accumulation of alignment error easily, thereby causes mechanical seal to be lost efficacy; 3, the sealing of lip rubber seal circle is adopted in bearing seal, very easily causes wearing and tearing and leakage of oil under the axle high speed rotating.
Summary of the invention:
Technical problem to be solved in the utility model is: 1, the existing mechanical Seal cage is less; 2, the alignment error of mechanical seal is bigger; 3, the sealing of lip rubber seal circle is adopted in bearing seal, and wearing and tearing and leakage of oil easily take place.
The utility model is to solve the problems of the technologies described above the technological scheme that is adopted to provide a kind of cantilever type chemical centrifugal pump, described cantilever type chemical centrifugal pump is by the pump housing, impeller, pump shaft, back blade, mechanical seal, pump cover, stator blade, suspension, bearing, bearing gland, dust cover and mechanical seal chamber constitute, be provided with described impeller in the described pump housing, described impeller is fixed on the described pump shaft, concrete means of fixation can be fixed for nut, side at described impeller is provided with described back blade, on described pump shaft, also be provided with described mechanical seal, described mechanical seal can be integrated mechanical sealing, one end of described mechanical seal is fixed on the described pump cover, be provided with described stator blade in the described pump cover, the two ends of described pump shaft are separately positioned in the described bearing, described bearing can be rolling bearing, described bearing is arranged on the two ends of described suspension, be provided with described bearing gland in the inboard of described bearing, be thread seal between the open-work of described bearing gland and the described pump shaft, described screw thread can be square threaded form, arranged outside at described bearing gland has described dust cover, and described mechanical seal chamber is by described back blade, stator blade and mechanical seal constitute.
The utility model and prior art contrast, because be provided with cartridge mechanical seal, bigger mechanical seal chamber and mazy bearing seal structure, and when guaranteeing the pump reliably working, long service life.
Description of drawings:
Fig. 1 is the utility model cantilever type chemical centrifugal pump schematic diagram.
Embodiment:
As shown in Figure 1, the utility model cantilever type chemical centrifugal pump, by the pump housing 1, impeller 2, pump shaft 3, back blade 4, mechanical seal 5, pump cover 6, stator blade 7, suspension 8, bearing 9, bearing gland 10, dust cover 11 and mechanical seal chamber 12 constitute, be provided with described impeller 2 in the described pump housing 1, described impeller 2 is fixed on the described pump shaft 3, concrete means of fixation can be fixed for nut, side at described impeller 2 is provided with described back blade 4, on described pump shaft 3, also be provided with described mechanical seal 5, described mechanical seal 5 can be integrated mechanical sealing, one end of described mechanical seal 5 is fixed on the described pump cover 6, be provided with described stator blade 7 in the described pump cover 6, the two ends of described pump shaft 3 are separately positioned in the described bearing 9, described bearing 9 can be rolling bearing, described bearing 9 is arranged on the two ends of described suspension 8, be provided with described bearing gland 10 in the inboard of described bearing 9, be thread seal between the open-work of described bearing gland 10 and the described pump shaft 3, described screw thread can be square threaded form, arranged outside at described bearing gland 10 has described dust cover 11, described mechanical seal chamber 12 is by described back blade 4, stator blade 7 and mechanical seal 5 constitute, and the volume in described mechanical seal chamber 12 is 1/5th of described pump cover 6 cavity volume.
Claims (7)
1, a kind of cantilever type chemical centrifugal pump, by the pump housing, impeller, pump shaft, pump cover, suspension, bearing, bearing gland and mechanical seal chamber constitute, it is characterized in that: be provided with described impeller in the described pump housing, described impeller is fixed on the described pump shaft, side at described impeller is provided with described back blade, on described pump shaft, also be provided with described mechanical seal, one end of described mechanical seal is fixed on the described pump cover, be provided with described stator blade in the described pump cover, the two ends of described pump shaft are separately positioned in the described bearing, described bearing is arranged on the two ends of described suspension, be provided with described bearing gland in the inboard of described bearing, described mechanical seal chamber is by described back blade, stator blade and mechanical seal constitute.
2, cantilever type chemical centrifugal pump according to claim 1 is characterized in that: described impeller is fixed on the described pump shaft by nut.
3, cantilever type chemical centrifugal pump according to claim 1 is characterized in that: described mechanical seal is integrated mechanical sealing.
4, cantilever type chemical centrifugal pump according to claim 1 is characterized in that: described bearing is a rolling bearing.
5, cantilever type chemical centrifugal pump according to claim 1 is characterized in that: be thread seal between the open-work of described bearing gland and the described pump shaft.
6, cantilever type chemical centrifugal pump according to claim 5 is characterized in that: described screw thread is a square threaded form.
7, cantilever type chemical centrifugal pump according to claim 1 is characterized in that: the arranged outside at described bearing gland has dust cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03228243 CN2602199Y (en) | 2003-01-21 | 2003-01-21 | Cantilevered centrifugal pump for chemical engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03228243 CN2602199Y (en) | 2003-01-21 | 2003-01-21 | Cantilevered centrifugal pump for chemical engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2602199Y true CN2602199Y (en) | 2004-02-04 |
Family
ID=34164204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03228243 Expired - Fee Related CN2602199Y (en) | 2003-01-21 | 2003-01-21 | Cantilevered centrifugal pump for chemical engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2602199Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671227A (en) * | 2013-12-09 | 2014-03-26 | 无锡艾比德泵业有限公司 | Dyeing pump with mechanical seal cavity |
| CN113803288A (en) * | 2021-08-20 | 2021-12-17 | 北京航天石化技术装备工程有限公司 | Be applied to butt spinning blade and slurry pump of slurry pump |
-
2003
- 2003-01-21 CN CN 03228243 patent/CN2602199Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671227A (en) * | 2013-12-09 | 2014-03-26 | 无锡艾比德泵业有限公司 | Dyeing pump with mechanical seal cavity |
| CN113803288A (en) * | 2021-08-20 | 2021-12-17 | 北京航天石化技术装备工程有限公司 | Be applied to butt spinning blade and slurry pump of slurry pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI YIHUA TECHNOLOGY CO.,LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100719 Address after: 200042 Shanghai Yanping Road 223 Lane No. 4 room 1802 Co-patentee after: Shanghai Yihua Technology Co.,Ltd. Patentee after: Shanghai Jialin Pump Valve Co., Ltd. Address before: 200042 Shanghai Yanping Road 223 Lane No. 4 room 1802 Patentee before: Shanghai Jialin Pump Valve Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040204 Termination date: 20100221 |