CN201344138Y - Low-noise self-priming pump - Google Patents
Low-noise self-priming pump Download PDFInfo
- Publication number
- CN201344138Y CN201344138Y CNU2008202174046U CN200820217404U CN201344138Y CN 201344138 Y CN201344138 Y CN 201344138Y CN U2008202174046 U CNU2008202174046 U CN U2008202174046U CN 200820217404 U CN200820217404 U CN 200820217404U CN 201344138 Y CN201344138 Y CN 201344138Y
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- CN
- China
- Prior art keywords
- pump
- motor
- self
- pressure
- electric motor
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- 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 low-noise self-priming pump; a submersible motor is arranged in the pump body; a seal oil chamber is arranged below the submersible motor; a pressure sensor and a pressure pipe are arranged in the seal oil chamber; when the pressure sensor monitors that the pressure in the seal oil chamber is less than a set value, the seal oil chamber is pressurized by the pressure pipe, so as to have enough pressure to improve the sealing effect; because the submersible motor is soaked in the water in the pump body; and the motor is cooled by the liquid in the pump body, so as to ensure the temperature of the motor slightly rise and the noise is lowered under the long-termed working condition.
Description
Technical field
The utility model relates to self-priming pump, particularly relates to the self-priming pump of having relatively high expectations of a kind of working environment to pump and motor.
Background technique
At present, known vertical self-priming pump motor is external, be positioned at the upside of the pump housing, occupation space is bigger, is difficult to satisfy the requirement of working space compactness, under the situation of work under bad environment, need the higher motor of security level, to guarantee the reliable operation of motor, common motor is mainly by fan cooled, fan cooled is weak effect not only, and fan itself also can produce bigger noise.
Summary of the invention
Task of the present utility model provides self-sucking pump with low noise, and it has solved the problem that working environment in the prior art is had relatively high expectations to pump and motor.
Its technical problem that solves the utility model adopt technological scheme be:
Self-sucking pump with low noise, at the inner submersible electric motor of installing of the pump housing, the housing of this submersible electric motor is an one with last pump cover mutually, be by bolted sealing grease chamber below submersible electric motor, at indoor pressure transducer and the forcing pipe of being equipped with of sealing oil, when pressure sensor monitoring arrives the indoor pressure of sealing oil less than certain value, just give the pressurization of sealing grease chamber by forcing pipe, making that sealing oil is indoor has enough pressure to increase sealing effect, below the sealing grease chamber is by fastening connection piece and impeller nut impeller to be fixed on the motor reel, between the outer end of impeller and pump housing inside is the self-priming blower inlet casing, because submersible electric motor is to be dipped in the water of pump housing inside, motor can guarantee that by the liquid cooling in the pump housing motor is under the condition of working long hours, temperature rise is low, and noise is little.
It is less that self-sucking pump with low noise of the present utility model is particularly useful for working space, under the situation of work under bad environment, it is by being installed in submersible electric motor the inner effect that reduces working space that reaches of the pump housing, because submersible electric motor is in pump housing inside, the security level height of submersible electric motor, can make self-priming pump be applied in high humidity, the environment work down that dust granules is many, in the course of the work, because submersible electric motor is to be dipped in the water of pump housing inside, motor is by the liquid cooling in the pump housing, can guarantee motor under the condition of working long hours, temperature rise is low, and noise is little.
Description of drawings
Fig. 1 is the schematic diagram of self-sucking pump with low noise of the present utility model.
Fig. 1: 1. go up pump cover, 2. cable, 3. bearing (ball) cover, 4. one-way cock, 5. forcing pipe, 6. submersible electric motor, 7. the pump housing 8. seals grease chamber, 9. impeller nut, 10. impeller, 11. times pump covers, 12. self-priming blower inlet casings, 13. connecting bolt, 14. double mechanical seals, 15. pressure transducers, 16. connecting bolt, 17. rolling bearings, 18. submersible electric motor axles.
Specific embodiment:
As shown in Figure 1, submersible electric motor 6 is built in the pump housing 7, the heat that produces in the submersible electric motor 6 passes through the interior medium transport of the pump housing outside the pump housing, submersible electric motor 6 links together with sealing grease chamber 8 by connecting bolt 16, in sealing grease chamber 8, pressure transducer 15 and forcing pipe 5 are housed, when pressure transducer 15 monitors the pressure of sealing in the grease chamber 8 less than certain numerical value, just increase for sealing grease chamber 8 by forcing pipe 5, make the pressure in the sealing grease chamber 8 keep certain value, to guarantee having enough pressure to increase the seal action of sealing grease chamber 8, in submersible electric motor axle 18 and sealing grease chamber 8, double mechanical seal 14 is housed, double mechanical seal 14 matches with sealing grease chamber 8 upper sides and realizes the sealing of axis of rolling socket end, double mechanical seal 14 matches with following pump cover 11, the sealing of realization lower end surface, by impeller nut 9 impeller 10 is fixed on the submersible electric motor axle 18, with connecting bolt 13 self-priming blower inlet casing 12 is fixed in the sealing grease chamber 8 between the outside of impeller 10 and the pump housing 7.
The utility model has the advantages that: when working environment during to the having relatively high expectations of pump and motor, can be by will Submersible electric motor is built in pump body, both can reduce the volume of pump, and it is electronic to prevent that again dust granules from entering Machine and reduction noise, the service life of improving motor.
This self-sucking pump with low noise has good effect through on probation, is subjected to the welcome at family on probation.
Claims (2)
1. low noise self-priming pump, it comprises submersible motor (6), sealing grease chamber (8), impeller (10), self-priming blower inlet casing (12), the pump housing (7), last pump cover (1), following pump cover (11), submersible electric motor axle (18), bearing (ball) cover (3), pressure transducer (15), forcing pipe (5) is characterized in that: submersible electric motor (6) is located at the pump housing (7) inside.
2. low noise self-priming pump according to claim 1 is characterized in that: be provided with pressure transducer (15) and forcing pipe (5) in the described sealing grease chamber (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202174046U CN201344138Y (en) | 2008-11-28 | 2008-11-28 | Low-noise self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202174046U CN201344138Y (en) | 2008-11-28 | 2008-11-28 | Low-noise self-priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201344138Y true CN201344138Y (en) | 2009-11-11 |
Family
ID=41275720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202174046U Expired - Fee Related CN201344138Y (en) | 2008-11-28 | 2008-11-28 | Low-noise self-priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201344138Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691665A (en) * | 2011-03-21 | 2012-09-26 | 梁嘉麟 | A structure waterproof sealing method for a submersible pump |
-
2008
- 2008-11-28 CN CNU2008202174046U patent/CN201344138Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691665A (en) * | 2011-03-21 | 2012-09-26 | 梁嘉麟 | A structure waterproof sealing method for a submersible pump |
| CN102691665B (en) * | 2011-03-21 | 2016-04-06 | 中国计量学院 | A kind of submersible pump utilizes the waterproof sealing method of air jacking |
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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: 20091111 Termination date: 20151128 |