CN2637781Y - Underwater pump - Google Patents
Underwater pump Download PDFInfo
- Publication number
- CN2637781Y CN2637781Y CN 03277401 CN03277401U CN2637781Y CN 2637781 Y CN2637781 Y CN 2637781Y CN 03277401 CN03277401 CN 03277401 CN 03277401 U CN03277401 U CN 03277401U CN 2637781 Y CN2637781 Y CN 2637781Y
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- shaft
- pump housing
- running
- 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 relates to a pump, in particular to a submerged pump used in petrochemical industry, foods processing, environmental protection, city wastewater treatment etc. The pump comprises an engine, a supporting pipe, a pump body, an impeller and a pump shaft. The pump is characterized in that: two sealing rings are arranged between the impeller and the pump cover and between the impeller and the pump body. Both sealing rings are floating, i.e. when the gap between the graphite sleeve and the shaft sleeve is enlarged, the sealing rings are driven by the impeller end surface and float, which does not generate friction along radial direction. Therefore, the pump effectively avoids unstableness and shaking caused by the friction of the impeller, improves the running reliability of the pump and greatly prolongs the service life. In order to avoid too large radial direction force caused by the running of the impeller and too much running noises and unstableness, the outlet of the pump is designed as double-channel one, thus inter-counteracting some of the radial direction force and improving the running reliability and stableness of the pump.
Description
Technical field: the utility model relates to a kind of pump, particularly relates to a kind of Under Water Pumps.
Background technique: Under Water Pumps is applied in fields such as petrochemical industry, food processing, environmental protection, municipal sewage treatment widely, and the axle sleeve of traditional Under Water Pumps is connected on the main shaft by key, and cooperates impeller to be rotated with graphite cannula under the drive of main shaft.Because Under Water Pumps belongs to the major axis structure, its drive end is far away from impeller, therefore after graphite cannula is turning round certain phase, the gap of axle sleeve and graphite cannula can increase, cause the seal ring of impeller impeller stalk portion and pump housing under the effect of radial force friction to take place and produce vibrations, and cause phenomenon such as main shaft fracture easily.
Summary of the invention: the purpose of this utility model just provides a kind of new design idea, the various frictions when eliminating the impeller operation imbalance by changing the seal ring position.Thereby can avoid the impeller friction to cause phenomenons such as unstability, vibrations effectively, improve the reliability of pump operation, prolonged working life widely.
It is excessive that another purpose of the present utility model is exactly the radial force that produces when avoiding impeller operation, causes the excessive and not steady phenomenon of pump running noise, eliminates the radial force of impeller operation in design as far as possible.
The purpose of this utility model is achieved in that a kind of novel Under Water Pumps comprises motor, support tube, the pump housing, impeller, pump shaft, pump shaft by bearing fixing in support tube, the upper end of pump shaft is connected with motor shaft, and its lower end is fixed with impeller by impeller nut; Connect support and be fixed on the support tube, pump cover is fitted in by the pump housing and connects on the support; Between pump shaft and pump cover, be provided with axle sleeve and graphite cannula, it is characterized in that: embedding annular sealing ring together mutually in the described pump housing and impeller join nearby the pump housing; And in described pump cover and impeller join nearby pump cover also mutually embedding annular sealing ring together, this two seals ring is float design, and impeller both ends of the surface distance is between 0.5-0.8mm, promptly after graphite cannula and the increase of axle sleeve gap, when impeller has running uneven gradually, because the two seals ring is a float design, seal ring can float under impeller is end-acted, can not produce radial friction.
Another purpose of the present utility model is achieved in that the pump housing designs according to double flow channel, and the radial force of Chan Shenging is offset a part between can be mutually like this, has improved pump operating reliability and stationarity.
The utility model compared with prior art has following advantage:
1. because the two seals ring between impeller and the pump cover and the pump housing is a float design, after graphite cannula and the increase of axle sleeve gap, when impeller had running uneven gradually, seal ring can float under impeller is end-acted, can not produce radial friction like this.Thereby can avoid the impeller friction to cause phenomenons such as unstability, vibrations effectively, improve the reliability of pump operation, prolonged working life widely.
2. the pump housing designs according to double flow channel, and the radial force of Chan Shenging is offset a part between can be mutually like this, has improved pump operating reliability and stationarity.
Description of drawings: Fig. 1 is the structural representation of novel Under Water Pumps described in the utility model
1. support tube 2. connects support 3. pump shafts 4. axle sleeves 5. graphite cannulas 6. pump covers
7. casing wear ring 8. pump housings 9. impellers 10. casing rings 11. impeller nuts
Embodiment: as can be seen from Figure 1, a kind of novel Under Water Pumps comprises motor, support tube 1, the pump housing 8, impeller 9, pump shaft 3, in support tube 1, the upper end of pump shaft 3 is connected with motor shaft pump shaft 3 by bearing fixing, and its lower end is fixed with impeller 9 by impeller nut 11; Connect support 2 and be fixed on the support tube 1, pump cover 6 is fitted in by the pump housing 8 and connects on the support 2; Between pump shaft 3 and pump cover 6, be provided with axle sleeve 4 and graphite cannula 5, it is characterized in that: embedding annular sealing ring 10 together mutually in the described pump housing 8 and impeller 9 join nearby the pump housing 8; And in described pump cover 6 and impeller 9 join nearby pump cover 6 also mutually embedding annular sealing ring 7 together, this two seals ring 10 and 7 is float design, and impeller 9 both ends of the surface distance is between 0.5-0.8mm, promptly after graphite cannula 5 and axle sleeve 4 gaps increase, when impeller 9 has running uneven gradually, because the two seals ring is a float design, seal ring can float under impeller is end-acted, can not produce radial friction.Thereby can avoid the impeller friction to cause phenomenons such as unstability, vibrations effectively, improve the reliability of pump operation, prolonged working life widely.
The radial force that produces during for fear of impeller operation is excessive, causes the excessive and steady phenomenon of pump running noise, and pump housing outlet is according to the double flow channel design, like this radial force of Chan Shenging can be mutually between counteracting a part of, improved pump operating reliability and stationarity.
Claims (3)
1. novel Under Water Pumps comprises motor, support tube (1), the pump housing (8), impeller (9), pump shaft (3), pump shaft (3) by bearing fixing in support tube (1), the upper end of pump shaft (3) is connected with motor shaft, and its lower end is fixed with impeller (9) by impeller nut (11); Connect support (2) and be fixed on the support tube (1), pump cover (6) is fitted in by the pump housing (8) and connects on the support (2); Between pump shaft (3) and pump cover (6), be provided with axle sleeve (4) and graphite cannula (5), it is characterized in that: one annular sealing ring of embedding (10) mutually in the described pump housing (8) and impeller (9) join nearby the pump housing (8); And in described pump cover (6) and impeller (9) join nearby pump cover (6) also mutually embedding one annular sealing ring (7).
2. novel Under Water Pumps according to claim 1 is characterized in that: described two seals ring (10) and (7) are float design, and impeller (9) both ends of the surface distance is between 0.5-0.8mm.
3. novel Under Water Pumps according to claim 1 is characterized in that: the described pump housing (8) outlet designs according to double flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277401 CN2637781Y (en) | 2003-08-01 | 2003-08-01 | Underwater pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277401 CN2637781Y (en) | 2003-08-01 | 2003-08-01 | Underwater pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2637781Y true CN2637781Y (en) | 2004-09-01 |
Family
ID=34302779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03277401 Expired - Fee Related CN2637781Y (en) | 2003-08-01 | 2003-08-01 | Underwater pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2637781Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738312A (en) * | 2022-03-25 | 2022-07-12 | 苏州杰利凯工业设备有限公司 | Device for sealing and supporting rotor part of submerged fluoroplastic pump |
-
2003
- 2003-08-01 CN CN 03277401 patent/CN2637781Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738312A (en) * | 2022-03-25 | 2022-07-12 | 苏州杰利凯工业设备有限公司 | Device for sealing and supporting rotor part of submerged fluoroplastic pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |