CN2214547Y - Corrosion resistant submerged pump - Google Patents
Corrosion resistant submerged pump Download PDFInfo
- Publication number
- CN2214547Y CN2214547Y CN 94239367 CN94239367U CN2214547Y CN 2214547 Y CN2214547 Y CN 2214547Y CN 94239367 CN94239367 CN 94239367 CN 94239367 U CN94239367 U CN 94239367U CN 2214547 Y CN2214547 Y CN 2214547Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump
- sealing
- main shaft
- corrosion
- 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 relates to a corrosion-resistant submergible pump which comprises a motor, a main shaft, an impeller and a supporting pipe. The utility model is characterized in that the main shaft is provided with an isolating sleeve; sealing rings are respectively arranged between the impeller and an impeller nut, between the impeller and a movable bearing, and between the movable bearing and the end surface of the isolating sleeve; a sealing fastener with a sealing ring and a sealing sleeve is adopted. Due to the adoption of sealing and isolating methods, the fastener of the main shaft of the pump is prevented from being directly contacted with corrosive media, which effectively protects metal components from being eroded; thereby, the service life of the pump is extended and the safe utilization of the pump is guaranteed. Besides, general carbon constructional steel material is adopted, so the manufacturing cost is obviously reduced.
Description
The utility model relates to a kind of corrosion-resistant Under Water Pumps.
Corrosion-resistant Under Water Pumps is a kind of single-stage cantilever vertical pump, be used under-5 ℃～105 ℃ temperature conditions, carrying liquid such as acid, alkali, the parts that contact with aggressive medium of this pump adopt nonmetallic material such as fluoroplastic, Reinforced Polypropylene more, yet main shaft and fastening piece as transmission can only be used corrosion-resistant metallic material so far, comprise titanium alloy, because these metallic material are antiacid, alkali ability is poor, particularly can not resist strong acid, especially the corrosion of some mixed acid, main shaft is serious rapidly to be corroded, the fastening piece fracture often causes the inefficacy of pump, prestige association production safety.
The purpose of this utility model provides a kind of corrosion-resistant Under Water Pumps that has main shaft separation sleeve and sealing fastener.
Task of the present utility model is to realize like this.The main shaft bag of pump is with separation sleeve; Between impeller and impeller nut, impeller and dynamic bearing, dynamic bearing and separation sleeve end face, seal ring is arranged; The nut of fastening stud adopts the sealing nut that has seal ring, has two ends that the stuffing box gland of seal ring is arranged between two fasteners.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the utility model pump housing part-structure sectional view.
1-motor among the figure, 2-main shaft, 3-impeller, the 4-support column, 5-separation sleeve, 6-impeller nut, the 7-dynamic bearing, 8-seal ring, 9-double-screw bolt, the 10-seal ring, 11-sealing nut, 12-seal ring, the 13-stuffing box gland, 14-separation sleeve, 15-metal pull bar, 16-support column flange, 17-pump cover, the 18-pump housing.
Now the utility model is described in further detail in conjunction with the accompanying drawings.
The utility model comprises motor 1, main shaft 2, impeller 3, support column 4, it is characterized in that: main shaft 2 has separation sleeve 5, between impeller 3 and impeller nut 6, impeller 3 and dynamic bearing 7, dynamic bearing 7 and separation sleeve 5 end faces seal ring 8 is arranged, be connected with the sealing fastener that has seal ring 10, seal ring 12, stuffing box gland 13 between pump cover 17, the pump housing 18 and the support column flange 16, described sealing fastener can be a double-screw bolt 9 of being furnished with sealing nut, also can be the bolt that has hermetic terminal.Described sealing ring material is a fluorine rubber, and the stuffing box gland material is engineering plastics, as polypropylene, polyethylene.Consider the difference of different materials thermal expansion coefficient, it differs and can reach tens of times, in order to guarantee the proper functioning of pump, the metal pull bar 15 of bag with separation sleeve 14 is arranged between described support column 4 flanges.Make isolating seal between pull bar separation sleeve and support column flange and pull-rod nut and the support column flange.
Owing to taked above seal isolation measure; stopped the direct contact corrosion medium of main shaft, fastening piece of pump; protected these parts to exempt from erosion effectively; thereby prolong the working life of pump, guaranteed the safety in utilization of pump, and; because the improvement of metalwork etching condition; can expensive Corrosion Resisting Steel or titanium alloy, and adopt general structural carbon steel, can reduce the manufacture cost of pump significantly.
Claims (4)
1, a kind of corrosion-resistant Under Water Pumps comprises motor (1), main shaft (2), impeller (3), support column (4), it is characterized in that:
A. main shaft (2) has separation sleeve (5),
B. between impeller (3) and impeller nut (6), impeller (3) and dynamic bearing (7), dynamic bearing (7) and separation sleeve (5) end face seal ring (8) is arranged,
C. connect with the sealing fastener that has seal ring (10) (12), stuffing box gland (13) between pump cover (17), the pump housing (18), the support column flange (16), described sealing fastener can be a double-screw bolt (9) of being furnished with sealing nut (11), also can be the bolt that has hermetic terminal.
2, corrosion-resistant Under Water Pumps according to claim 1 is characterized in that: described sealing fastener is a double-screw bolt (9) of being furnished with sealing nut (11).
3, corrosion-resistant Under Water Pumps according to claim 1 is characterized in that: described sealing fastener is the bolt that has hermetic terminal.
4, according to claim 2 or 3 described corrosion-resistant Under Water Pumpss, it is characterized in that: the metal pull bar (15) of bag with separation sleeve (14) arranged between the described support column flange (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94239367 CN2214547Y (en) | 1994-09-20 | 1994-09-20 | Corrosion resistant submerged pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94239367 CN2214547Y (en) | 1994-09-20 | 1994-09-20 | Corrosion resistant submerged pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2214547Y true CN2214547Y (en) | 1995-12-06 |
Family
ID=33846596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94239367 Expired - Fee Related CN2214547Y (en) | 1994-09-20 | 1994-09-20 | Corrosion resistant submerged pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2214547Y (en) |
-
1994
- 1994-09-20 CN CN 94239367 patent/CN2214547Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: WU MINJUAN TO: GAO XIANG; GAO FENG |
|
| CP03 | Change of name, title or address |
Address after: 501 room 12, No. 255, Lane 200433, Siping Road, Shanghai Patentee after: Gao Xiang Patentee after: Gao Feng Address before: 200040 room 26, No. 321, Lane 502, Yuyao Road, Shanghai Patentee before: Wu Minjuan |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Gao Xiang Document name: Notice of termination |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |