CN101982925A - No-sealing pump and special motor thereof - Google Patents
No-sealing pump and special motor thereof Download PDFInfo
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- CN101982925A CN101982925A CN 201010500031 CN201010500031A CN101982925A CN 101982925 A CN101982925 A CN 101982925A CN 201010500031 CN201010500031 CN 201010500031 CN 201010500031 A CN201010500031 A CN 201010500031A CN 101982925 A CN101982925 A CN 101982925A
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- Prior art keywords
- end cover
- motor
- pump
- axle sleeve
- impeller
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Abstract
The invention relates to a special motor for no-sealing pump and a pump applying the special motor. The special motor comprises a motor shaft, an upper end cover and a lower end cover; wherein the upper end cover is sheathed outside the motor shaft, the upper end of the upper end cover is extended with a shaft sleeve, the joint of the upper end cover and machine body and the joint of the lower end cover and the machine body are respectively provided with an O-shaped ring, and the inner cavity of the machine body forms a sealed cavity with the positions of motor shaft and shaft sleeve are open. The invention has the beneficial effects that: no friction type sealing is required, no leakage is achieved, no 'dropping', 'leaking', 'leaching' or 'bursting' phenomenon is produced, service life of pump is greatly prolonged, and production safety and economic benefit are improved.
Description
Technical field
The present invention relates to a kind of pump and motor special thereof, particularly a kind of pump that does not need the motor of mechanical seal and adopt this motor.
Background technology
Pump is the indispensable equipment of conveyance fluid medium, traditional pump adopts the friction-type sealing mostly, main flow is mechanical seal and filled type sealing, because the high speed rotating of pump when work, make friction sealed damage of friction-type sealing, cause and leak, the generation of " emitting " phenomenon " is oozed " in " dripping " " leakage ".Bring follow-up serial potential safety hazard, stop work and production has increased production cost.
Summary of the invention
For overcoming the defective of prior art, the technical problem to be solved in the present invention has provided a kind of space vapour lock unprssurized pump and motor special, its advantage is: need not the friction-type sealing, reach and do not leak, do not have " dripping " " leakage " and " ooze " generation of " emitting " phenomenon, prolong the useful life of pump greatly, improved production security and economic benefit.
To achieve these goals, the invention provides a kind of motor special that is used for the unprssurized pump class, comprise motor shaft, upper end cover and bottom end cover, upper end cover is enclosed within outside the motor shaft, an axle sleeve is extended in the upper end cover upper end, the junction of upper end cover and bottom end cover and body is respectively arranged with O type circle, and the body inner chamber forms the sealing cavity that has only motor shaft and axle sleeve place opening.
Body is provided with the motor cooling chamber outward.
A kind of unprssurized pump that adopts motor special, the pump housing is installed in outside the axle sleeve by O type circle hermetically, pump class impeller extends the impeller ennation of a circle circumferential protrusion, and the impeller ennation communicates with axle sleeve place air-tightness with the motor shaft of motor special, and impeller ennation and axle sleeve plug each other and form the vapour lock space.
The upper end cover and the pump housing are isolated installation and are formed thermal insulation layer.
The impeller ennation is many concentric rings, and plugging each other with axle sleeve forms the vapour lock space.
The invention has the beneficial effects as follows: need not the friction-type sealing, reach and do not leak, do not have the generation that " emitting " phenomenon " is oozed " in " dripping " " leakage ", prolonged the useful life of pump greatly, improved production security and economic benefit.
Description of drawings
The structural representation of Fig. 1, motor special;
The pump structure schematic diagram of Fig. 2, installation motor special;
Other a kind of enforcement illustration (omission bottom) of the pump of Fig. 3, installation motor special;
Embodiment
Shown in Figure 1, a kind of motor special that is used for the unprssurized pump class, comprise motor shaft 1, upper end cover 3 and bottom end cover 7, upper end cover 3 is enclosed within outside the motor shaft 1, an axle sleeve 2 is extended in upper end cover 3 upper ends, upper end cover 3 and bottom end cover 7 are respectively arranged with O type circle 8 with the junction of body 6, and body 6 inner chambers form the sealing cavity that has only motor shaft 1 and axle sleeve 2 place's openings.Interior magnetic coil 5 can not intake.Set up axle sleeve 2 on the motor upper cover 3 and 8 hermetic seals of O type circle are installed on the body 6; The bottom end cover 7 airtight designs in axial bottom are set up O type circle 8 airtight closing again and are installed on the body 6; Terminal box 9 places carry out the airtight processing of closing, and allow motor body 6 inner chambers form and have only motor shaft 1 and axle sleeve 2 place's openings, up or down, all the other all airtight motor cavity bodies that close.The body 6 outer motor cooling chambers 10 that are provided with, motor cooling like this, thermal diffusivity is better.
As shown in Figure 2, a kind of unprssurized pump that adopts motor special, the pump housing 15 is installed in outside the axle sleeve 2 hermetically by O type circle, pump class impeller 11 extends the impeller ennation 12 of a circle circumferential protrusion, and impeller ennation 12 communicates with axle sleeve 2 place's air-tightness with the motor shaft 1 of motor special, and impeller ennation 12 plugs each other with axle sleeve 2 and forms vapour lock space 14.Upper end cover 3 is isolated installation with the pump housing 15 and is formed thermal insulation layer 13.The pump housing 15 is installed in by O type circle sealing in the middle of the motor shaft sleeve 2, and pump class impeller 11 sets up that impeller ennation 12 and motor special axle are airtight to close installation, and impeller ennation 12 plugs each other with axle sleeve 2 and forms vapour lock space 14.Because the motor cavity body is an air-tightness, inside has only gas, and have only a motor shaft 1 and axle sleeve 2 place's openings, other place is all airtight, after being installed on the motor, the confined space that the extension 12 of impeller is inboard and motor shaft 1 and axle sleeve 2 are interior communicates, gas in the confined space in the motor has certain pressure, the outer liquid (generally being water) of motor is positioned at the outside of the extension 12 of impeller, like this in motor under the pressure effect of gas, the liquid of extension 12 outer rings of impeller is owing to there is the effect of internal gas pressure, so, liquid that can not enters motor internal, plays the effect of positive confinement.
As shown in Figure 3, impeller ennation 12 is many concentric rings, and plugging each other with axle sleeve 2 forms vapour lock space 14.Other structure such as Fig. 2 say that like this extension 12 of impeller becomes a plurality of concentric circless, have prolonged the path of liquid flow like this, and sealing effectiveness is better like this.
The present invention utilizes the gas in the vapour lock space to take the vapour lock space, and medium can't be entered in the motor machine chamber, vapour lock space, need not the friction-type sealing, and reaches the effect of sealing.
Claims (5)
1. motor special that is used for the unprssurized pump class, comprise motor shaft (1), upper end cover (3) and bottom end cover (7), upper end cover (3) is enclosed within outside the motor shaft (1), it is characterized in that: an axle sleeve (2) is extended in upper end cover (3) upper end, upper end cover (3) and bottom end cover (7) are respectively arranged with O type circle (8) with the junction of body (6), and body (6) inner chamber forms the sealing cavity that has only motor shaft (1) and axle sleeve (2) to locate opening.
2. a kind of motor special that is used for the unprssurized pump class according to claim 1 is characterized in that: the outer motor cooling chamber (10) that is provided with of body (6).
3. unprssurized pump that adopts claim 1 or 2 described motor specials, it is characterized in that: the pump housing (15) is installed in outside the axle sleeve (2) hermetically by O type circle, pump class impeller (11) extends the impeller ennation (12) of a circle circumferential protrusion, and impeller ennation (12) is located air-tightness with the motor shaft (1) of motor special with axle sleeve (2) and is communicated, and impeller ennation (12) plugs each other with axle sleeve (2) and forms vapour lock space (14).
4. unprssurized pump according to claim 3 is characterized in that: upper end cover (3) is isolated installation with the pump housing (15) and is formed thermal insulation layer (13).
5. unprssurized pump according to claim 4 is characterized in that: impeller ennation (12) is many concentric rings, and plugging each other with axle sleeve (2) forms vapour lock space (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010500031 CN101982925B (en) | 2010-09-30 | 2010-09-30 | No-sealing pump and special motor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010500031 CN101982925B (en) | 2010-09-30 | 2010-09-30 | No-sealing pump and special motor thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101982925A true CN101982925A (en) | 2011-03-02 |
| CN101982925B CN101982925B (en) | 2013-02-13 |
Family
ID=43619820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010500031 Active CN101982925B (en) | 2010-09-30 | 2010-09-30 | No-sealing pump and special motor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101982925B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365692A (en) * | 2018-03-24 | 2018-08-03 | 浙江中寰环保科技有限公司 | A kind of motor and its packaging technology |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2225105Y (en) * | 1995-02-20 | 1996-04-17 | 杭州水泵总厂 | Single phase electric motor for water pump |
| CN2341316Y (en) * | 1998-07-11 | 1999-09-29 | 衡阳市湘南电机厂 | Underwater electric motor with gapless rail shell |
| CN2528149Y (en) * | 2002-01-11 | 2002-12-25 | 李绵军 | Universal electric machine |
| US20050058533A1 (en) * | 2003-09-12 | 2005-03-17 | Mes International, Inc. | Sealing arrangement in a compressor |
| CN201496283U (en) * | 2009-06-25 | 2010-06-02 | 江苏国泉泵业制造有限公司 | Immersible pump with spiral labyrinth sealing device |
| CN201813244U (en) * | 2010-09-30 | 2011-04-27 | 张祥 | Packingless pump and special motor thereof |
-
2010
- 2010-09-30 CN CN 201010500031 patent/CN101982925B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2225105Y (en) * | 1995-02-20 | 1996-04-17 | 杭州水泵总厂 | Single phase electric motor for water pump |
| CN2341316Y (en) * | 1998-07-11 | 1999-09-29 | 衡阳市湘南电机厂 | Underwater electric motor with gapless rail shell |
| CN2528149Y (en) * | 2002-01-11 | 2002-12-25 | 李绵军 | Universal electric machine |
| US20050058533A1 (en) * | 2003-09-12 | 2005-03-17 | Mes International, Inc. | Sealing arrangement in a compressor |
| CN201496283U (en) * | 2009-06-25 | 2010-06-02 | 江苏国泉泵业制造有限公司 | Immersible pump with spiral labyrinth sealing device |
| CN201813244U (en) * | 2010-09-30 | 2011-04-27 | 张祥 | Packingless pump and special motor thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365692A (en) * | 2018-03-24 | 2018-08-03 | 浙江中寰环保科技有限公司 | A kind of motor and its packaging technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101982925B (en) | 2013-02-13 |
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