CN2874902Y - Anti-explosion submersible pump - Google Patents
Anti-explosion submersible pump Download PDFInfo
- Publication number
- CN2874902Y CN2874902Y CN 200620033359 CN200620033359U CN2874902Y CN 2874902 Y CN2874902 Y CN 2874902Y CN 200620033359 CN200620033359 CN 200620033359 CN 200620033359 U CN200620033359 U CN 200620033359U CN 2874902 Y CN2874902 Y CN 2874902Y
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- Prior art keywords
- explosion
- motor
- pump
- proof submerged
- proof
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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 an explosion-proof submersible pump, belonging to the technical field of liquid pump. The explosion-proof submersible pump comprises a motor, a water pump, and a connector, wherein the iron core with windings of the motor is in interference connection with a pedestal; at least six copper posts fixed on an upper bearing base are provided in the upper cover of the motor and are in star- or delta-shaped connection with a copper connection board and cables at their upper ends, and with motor windings at their lower ends. The explosion-proof submersible pump has reasonable design, compact structure, convenient maintenance, and convenient application, and is operable in 380V or 660V voltage range. Multiple mechanical seals mounted in the same direction are adopted to satisfy the axial size requirement for mechanical seal to ensure long service life of the pump. The pump adopts overload-free, low-specific-speed centrifugal blade wheel and has stable operation.
Description
Technical field:
The utility model belongs to the liquor pump technical field, particularly be a kind of explosion-proof submerged pump.
Background technology:
At present, there is following shortcoming in the explosion-proof submerged pump of plumbing operation in explosive atmosphere:
1, can only adapt to 380V or 600V single power supply voltage, user's scope of application is narrow, uses inconvenient.2, single sealing.Because the work under bad environment of explosion-proof submerged pump, the explosion-proof submerged pump work of single sealing very easily causes sealing early failure in the water that contains cinder, silt or other granule medium, cause the explosion-proof submerged pump life-span very short.3, for high-lift explosion-proof submerged pump, its pump chamber pressure is big during work, and axial force is also big, thereby its bearing negative loading, and bearing damages easily, has shortened the life-span of mechanical seal.4, the mechanical seal of explosion-proof submerged pump adopts the impeller hub end face to fix, and axial dimension can not satisfy the installation requirement of mechanical seal; Circumferential pulsation during on the other hand owing to impeller work is directly passed to mechanical seal, causes mechanical seal to damage, and finally causes explosion-proof submerged pump water inlet to be scrapped.5, the lift working range is narrow.Particularly high-lift submersible pump adopts general centrifugal pump impeller when low lift uses, so explosion-proof submerged pump overload work, efficient is low, and is fragile.
The utility model content:
The purpose of this utility model is in order to overcome the problem of above-mentioned existence, a kind of explosion-proof submerged pump that is mainly used in plumbing operation in explosive atmosphere to be provided.
The technical solution of the utility model is achieved in that
The explosion-proof submerged pump of the utility model, comprise motor, water pump and connector, unshakable in one's determination and the support interference fit of the band winding of motor, there is each personal nut to be fixed at least six copper binding posts on the terminal block in the loam cake of motor, terminal block is fixed on the top chock by terminal block pressing plate and securing member, the upper end of copper binding post becomes star or triangle to be connected with copper connecting plate and cable respectively, and the lower end of copper binding post is connected with the winding of motor respectively.
Above-mentioned copper binding post is 6～12.
The axle of above-mentioned motor is gone up in the water pump chamber and the end in the connector has at least two cannelures successively, flexible back-up ring on the cannelure, sealing clamp is arranged on the circlip, mechanical seal is arranged on the sealing clamp, on the step of motor seal cover board is arranged, sealing ring is arranged on the seal cover board, the back shroud of impeller side of water pump has sealing ring, two sealing ring gaps cooperate, and there is at least one pressure relief vent the sealing ring inboard.
Pressure relief vent is 2～8.
The diameter of pressure relief vent is at least 3mm.
The diameter of pressure relief vent is 3～6mm.
The impeller of water pump is not have overload low specific speed centrifugal pump impeller.
Explosion-proof submerged pump of the present utility model, use needs to change the different cross-over connection modes of copper connecting plate and copper binding post according to the user, for example when for Y-connection, be applicable to the 660V supply voltage, when connecting for triangle, be applicable to the 380V supply voltage, and operate as normal that is to say that explosion-proof submerged pump of the present utility model is applicable to two kinds of different supply voltages continuously, thereby user's scope of application is wide, and is easy to use.On the motor shaft in the water pump chamber and at least two cannelures having successively of the end in the connector and on circlip, sealing clamp, it is multiple-sealed that mechanical seal is formed, they work alone separately, install in the same way, the mechanical seal of arbitrary road was lost efficacy and can not caused explosion-proof submerged pump water inlet to damage, and the rotating part of each road mechanical seal sealing clamp separately, circlip, so can satisfy the axial dimension requirement that mechanical seal is installed, circumferential pulsation when having stopped water pump vane work is directly passed to mechanical seal, makes the defective of its damage.But two sealing rings of matched in clearance and the pressure relief vent ballast pump axial force on the sealing ring and improve the seal operation condition on the seal cover board on back shroud of impeller side and the motor step.Thereby use explosion-proof submerged pump work steadily reliable, seal durable, long service life.Adopt not have overload low specific speed centrifugal pump blade wheel structure mode, make explosion-proof submerged pump work not have overload, explosion-proof submerged pump can be in total head scope efficient operation and non-overloading is not fragile.Explosion-proof submerged pump configuration of the present utility model can be used for multistage pump.
In sum, explosion-proof submerged pump of the present utility model is reasonable in design, and compact conformation is safeguarded simply, and easy to use, the scope of application is wide, can be in the total head efficient operation and non-overloading, and it is reliable to operate steadily, and long service life is not fragile.
Description of drawings:
Fig. 1 is an explosion-proof submerged pump structure schematic sectional view of the present utility model.
Fig. 2 be the A of Fig. 1 of explosion-proof submerged pump of the present utility model to view---the star cross-over connection mode connection layout of cable.
Fig. 3 be the A of Fig. 1 of explosion-proof submerged pump of the present utility model to view---the triangle cross-over connection mode connection layout of cable.
Fig. 4 is the enlarged drawing of I of Fig. 1 of explosion-proof submerged pump of the present utility model.
Embodiment:
Shown in Fig. 1,2,3,4, explosion-proof submerged pump of the present utility model, comprise motor 1, water pump 2 and connector 3, band winding of motor 1 unshakable in one's determination 4 and support 5 interference fit, there is each personal nut 7 to be fixed on six copper binding posts 9 on the terminal block 8 in the loam cake 6 of motor 1, terminal block 8 is fixed on the top chock 11 by terminal block pressing plate 10 and securing member, the upper end of copper binding post 9 is connected with 13 one-tenth stars of copper connecting plate 12 and cable or triangle respectively, and the lower end of copper binding post 9 is connected with the winding 14 of motor 1 respectively.
An end that reaches in the connector 3 in water pump 2 chambeies on the axle 15 of above-mentioned motor 1 has two cannelures 16,17 successively, flexible back-up ring 18 on the cannelure 16,17, sealing clamp 19 is arranged on the circlip 18, mechanical seal 20 is arranged on the sealing clamp 19, on the step 21 of motor 1 seal cover board 22 is arranged, sealing ring 23 is arranged on the seal cover board 22, back shroud of impeller 24 sides of water pump 2 have sealing ring 25, two sealing rings, 23,25 matched in clearance, there are two pressure relief vents 26 sealing ring 25 inboards.
The diameter of above-mentioned pressure relief vent 26 is 3mm.
The impeller 27 of above-mentioned water pump 2 is not have overload low specific speed centrifugal pump impeller.
Explosion-proof submerged pump of the present utility model, use needs to change the different cross-over connection modes of copper connecting plate 12 and copper binding post 9 according to the user, for example when for Y-connection, be applicable to the 660V supply voltage, when connecting for triangle, be applicable to the 380V supply voltage, and operate as normal that is to say that explosion-proof submerged pump of the present utility model is applicable to two kinds of different supply voltages continuously, thereby user's scope of application is wide, and is easy to use.On 1 15 in motor in the water pump chamber and two cannelures 16 having successively of the end in the connector 3,17 and on circlip 18, sealing clamp 19, it is multiple-sealed that mechanical seal 20 is formed, they work alone separately, install in the same way, arbitrary road mechanical seal 20 was lost efficacy and can not caused explosion-proof submerged pump water inlet to damage, and the rotating part of each road mechanical seal 20 sealing clamp 19 separately, circlip 18, so can satisfy the axial dimension requirement that mechanical seal 20 is installed, circumferential pulsation when having stopped water pump vane 27 work is directly passed to mechanical seal 20, makes the defective of its damage.But two sealing rings 23,25 of matched in clearance and the pressure relief vent 26 ballast pump axial forces on the sealing ring 25 and improve the seal operation condition on the seal cover board 22 on back shroud of impeller 24 sides and motor 1 step 21, thereby make explosion-proof submerged pump work steadily reliable, seal durable, long service life.Adopt not have overload low specific speed centrifugal pump blade wheel structure mode, make explosion-proof submerged pump work not have overload, explosion-proof submerged pump can be in total head scope efficient operation and non-overloading is not fragile.Explosion-proof submerged pump configuration of the present utility model can be used for multistage pump.
Claims (7)
1, a kind of explosion-proof submerged pump, comprise motor (1), water pump (2) and connector (3), the band winding iron core (4) and support (5) interference fit that it is characterized in that motor (1), there is each personal nut (7) to be fixed at least six copper binding posts (9) on the terminal block (8) in the loam cake (6) of motor (1), terminal block (8) is fixed on the top chock (11) by terminal block pressing plate (10) and securing member, the upper end of copper binding post (9) becomes star or triangle to be connected with copper connecting plate (12) and cable (13) respectively, and the lower end of copper binding post (9) is connected with the winding (14) of motor (1) respectively.
2, explosion-proof submerged pump according to claim 1 is characterized in that copper binding post (9) is 6～12.
3, explosion-proof submerged pump according to claim 1, it is characterized in that going up an end that reaches in the connector (3) at the axle (15) of motor (1) in water pump (2) chamber has at least two cannelures (16 successively, 17), cannelure (16,17) go up flexible back-up ring (18), sealing clamp (19) is arranged on the circlip (18), mechanical seal (20) is arranged on the sealing clamp (19), on the step (21) of motor (1) seal cover board (22) is arranged, sealing ring (23) is arranged on the seal cover board (22), back shroud of impeller (24) side of water pump (2) has sealing ring (25), two sealing rings (23,25) matched in clearance, there is at least one pressure relief vent (26) sealing ring (25) inboard.
4, explosion-proof submerged pump according to claim 3 is characterized in that pressure relief vent (26) is 2～8.
5, according to claim 3 or 4 described explosion-proof submerged pumps, it is characterized in that the diameter of pressure relief vent (26) is at least 3mm.
6, explosion-proof submerged pump according to claim 5, the diameter that it is characterized in that pressure relief vent (26) is 3～6mm.
7, according to claim 1 or 3 described explosion-proof submerged pumps, the impeller (27) that it is characterized in that water pump (2) is not have overload low specific speed centrifugal pump impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620033359 CN2874902Y (en) | 2006-03-09 | 2006-03-09 | Anti-explosion submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620033359 CN2874902Y (en) | 2006-03-09 | 2006-03-09 | Anti-explosion submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874902Y true CN2874902Y (en) | 2007-02-28 |
Family
ID=37781491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620033359 Expired - Fee Related CN2874902Y (en) | 2006-03-09 | 2006-03-09 | Anti-explosion submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2874902Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720726A (en) * | 2016-04-22 | 2016-06-29 | 王前进 | Ring-type brushless motor and motor pump employing same |
| CN109286091A (en) * | 2018-08-23 | 2019-01-29 | 广州市昊志机电股份有限公司 | Termination, linear motor and linear induction motor system for linear motor |
-
2006
- 2006-03-09 CN CN 200620033359 patent/CN2874902Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720726A (en) * | 2016-04-22 | 2016-06-29 | 王前进 | Ring-type brushless motor and motor pump employing same |
| CN109286091A (en) * | 2018-08-23 | 2019-01-29 | 广州市昊志机电股份有限公司 | Termination, linear motor and linear induction motor system for linear motor |
| CN109286091B (en) * | 2018-08-23 | 2021-01-08 | 广州市昊志机电股份有限公司 | Wiring device for linear motor, linear motor and linear motor system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHENGDU HONGRI WATER PUMP MANUFACTURING CO., LTD. Free format text: FORMER NAME: CHENGDU SINKING PUMP FACTORY |
|
| CP03 | Change of name, title or address |
Address after: No. 1, Xihe Road, Pujiang County, Sichuan, Chengdu Province: 611630 Patentee after: Chengdu red sun water pump manufacturing Co., Ltd. Address before: The river in Pujiang County of Sichuan province Chengdu City Road No. 1 Chengdu submersible pump factory, zip code: 611630 Patentee before: Chengdu Submersible Pump Factory |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070228 |