CN201521460U - Centrifugal pump driven by synchronous machine - Google Patents
Centrifugal pump driven by synchronous machine Download PDFInfo
- Publication number
- CN201521460U CN201521460U CN2009201965317U CN200920196531U CN201521460U CN 201521460 U CN201521460 U CN 201521460U CN 2009201965317 U CN2009201965317 U CN 2009201965317U CN 200920196531 U CN200920196531 U CN 200920196531U CN 201521460 U CN201521460 U CN 201521460U
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- China
- Prior art keywords
- valve plate
- impeller
- pump
- fixed edge
- hinge
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- Expired - Lifetime
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Abstract
The utility model provides a centrifugal pump driven by a synchronous motor, which consists of a synchronous motor, a centrifugal pump impeller and a centrifugal pump casing (1), wherein, the impeller is in hub connection with the synchronous motor through an impeller shaft, the blade of the impeller (2) is arc-shaped; apart from a water outlet (5), a tap hole (3) is formed on the circumferential wall of the pump casing; a flip type valve plate (4) is mounted on the inner side of the tap hole; and the flip type valve plate is fixed with the pump casing in such a manner that when the impeller rotates in the forward direction (A), the fixation edge of the flip type valve plate and the inner wall of the pump casing is at the upstream of the tap hole. When the impeller rotates in the reverse direction, the tap hole is opened, and the flow rate of the pump is increased, thereby enabling a rotator to stop rotating before rotating in other directions. Compared with the prior art, the centrifugal pump driven by the synchronous motor is simpler in structure and lower in manufacturing cost that neither the blade on the impeller is required to be relatively flexible nor the circuit of the pump is supplemented with a circuit controlling rotation direction.
Description
Technical field
The utility model relates to a kind of centrifugal pump of synchronous machine drives, belong to pump technology field in the machinery.
Background technique
The centrifugal pump of synchronous machine drives is a kind of micropump, is made of the impeller and the pump case that are installed on the synchronous motor shaft, and the blade of original this pump is straight, and adapting to synchronous machine uncertain characteristics of sense of rotation when starting, but efficient is on the low side.But the blade of employed this pump is an arc at present.The centrifugal pump of the synchronous machine drives of arc shaped blade is than the efficient height of straight blade type centrifugal pump, but the uncertain problem of sense of rotation must solve electric motor starting the time.At present the way that solves is to reduce the rigidity of blade, opened by centrifugal action when making its reversing and stops wheel rotation, motor is restarted finally reach forward rotation, perhaps increases the synchronous machine sense of rotation control circuit of a complexity.Make when forward rotation blade be subjected to resistance to water-flow face crooked more and damaged mechanical efficiency but cross soft blade, use control circuit then to increase manufacture cost.
Summary of the invention
At above-mentioned deficiency, the utility model is exactly the centrifugal pump that a kind of existing greater efficiency synchronous machine drives simple in structure again will be provided.
The centrifugal pump of the synchronous machine drives that the utility model provides is made of synchronous machine, centrifugal pump impeller and centrifugal pump pump case; Impeller is connected with synchronous motor shaft with impeller shaft, and the blade of impeller is an arc shaped blade; Also having an opening on said pump case peripheral wall except that water outlet is tap hole; The tap hole installed inside has the hinge-lid type valve plate, and said hinge-lid type valve plate is that on one side relatively pump case is fixed and remaining part can seal or open the part of tap hole effect according to plaing of stirring of this fixed edge; Installation relation between hinge-lid type valve plate and the pump case is when impeller is rotated in the forward, and the fixed edge of hinge-lid type valve plate and pump case inwall is in the upstream of tap hole, and this valve plate has the cambered surface of pasting and constitute sealing with tap hole place pump house wall cambered surface mutually; The scope of stirring and the wheel rotation scope of valve plate are non-intersect.
The centrifugal pump of the synchronous machine drives that the utility model provides, in the water pump impeller when forward turns round valve plate with pump case on tap hole block, make the water pump proper functioning; And when the impeller sense of rotation was reverse, current drove valve plate and open, thereby made flow that a part of water tap hole from the pump case flows out has increased pump, strengthened the required power of pump operation.And then since motor can not bear the load rotor is stopped operating, reselect sense of rotation, till choosing correct sense of rotation.Compared with prior art, the impeller upper blade needn't be done softly in the utility model, also needn't on the water pump circuit, increase the sense of rotation control circuit, under the prerequisite of the impeller spin orientation problem of the centrifugal pump that has solved synchronous machine drives, make pump structure manufacture cost simple more and pump lower.
Said hinge-lid type valve plate is the hard valve plate with metal or plastic production, and said fixed edge is with the limit of pivot knuckles on pump case with the hard valve plate; Perhaps said hinge-lid type valve plate is the hard valve plate with metal or plastic production, and said fixed edge is that valve plate is connected through flexible flanging with fixed edge with the narrow and small plate body of the hard of metal or plastic production, and fixed edge is fixedly installed on the pump case; Perhaps said hinge-lid type valve plate is the elasticity valve plate of making of rubber, and said fixed edge is that the elasticity valve plate is fixedly installed to limit on the pump case.
The flexible flanging that is connected between wherein said valve plate and the fixed edge is to connect metal or the hard valve plate of plastic production and the hinge between the fixed edge, perhaps connects the hard valve plate of plastic production and the thermoplastic elastomer (TPE) between the fixed edge.
Fixed edge on the said peripheral wall that valve plate is connected pump case is parallel to impeller shaft, makes it have the minimum resistance that stirs, and improves working sensitivity.
Description of drawings
Fig. 1 is the structural drawing of the utility model one embodiment when the impeller forward rotation;
Fig. 2 is the structural drawing of the embodiment shown in the figure one when the impeller backward rotation;
Among the figure: 1-pump case, 2-impeller, 3-tap hole, 4-hinge-lid type valve plate, 5-water outlet, A-arrow, the direction that the indication impeller is rotated in the forward, B-arrow, the direction of indication impeller counterrotating.
Embodiment
As shown in Figure 1, a synchronous motor-driven centrifugal pump is arranged, comprise pump case 1, impeller 2 and motor (not shown), blade on the coaxial and impeller is an arc to impeller shaft with motor shaft.Impeller is a forward rotation when rotating by the indicated direction of arrow A among the figure, and the back of a bow of arc shaped blade points to the forward rotation direction.Water outlet 5 and tap hole 3 are arranged on the pump case peripheral wall, and wherein the current that produce when forward rotation of the center line of water outlet and impeller break away from the tangent direction basically identical of rotation, use water resistance and reduce.Said pump case peripheral wall be on the pump case perpendicular to the wall of impeller shaft, be to stop current in the pump to break away from the walls of rotation according to centrifugal force, from then on current can flow out when therefore on this wall opening being arranged.This routine tap hole is arranged on the opposite side of the pump case center line parallel with the water outlet center line, and this tap hole is less than water outlet.Tap hole during in the impeller forward rotation in the pump upstream of current with the pivot knuckles that is parallel to impeller shaft a hinge-lid type valve plate is arranged, seal when this hinge-lid type valve plate stirs according to pivot or with tap hole, or open split-flow opening, therefore, to be used to seal the face of tap hole be the cambered surface proper mutually with pump case peripheral wall inner surface to this hinge-lid type valve plate.This hinge-lid type valve plate is non-intersect according to the scope of stirring and the wheel rotation scope of pivot, even valve plate collides according to the impeller that pivot stirs the Shi Buyu rotation.
When the impeller forward rotation, current tightly are pressed in the hinge-lid type valve plate and make its sealing on the tap hole in the pump case.And press among Fig. 2 the rotation of arrow B direction when impeller, promptly during backward rotation, the interior current of pump case open the hinge-lid type valve plate, make also to there are flowing out in the tap hole, have improved motor load and motor is stopped operating and reselect the startup direction thereby increased pump duty.
2, all the other structures and last example are same except that the hinge-lid type valve plate, this routine hinge-lid type valve plate be one with plastics arc valve plate, thermoplastic elastomer (TPE) flanging and the molded part of plastic mounting limit three in one, wherein fixed edge is fixedly mounted in the pump case, and flanging can make valve plate relative fixed limit stir.In addition, this flanging also can replace by hinge.
3, all the other structures and example 1 are same except that the hinge-lid type valve plate, and this routine hinge-lid type valve plate is a valve plate that the rubber mold pressing forms, on one side it is fixedly mounted in the pump case.
Claims (6)
1. the centrifugal pump of a synchronous machine drives is made of synchronous machine, centrifugal pump impeller and centrifugal pump pump case; Impeller is connected with synchronous motor shaft with impeller shaft, and the blade of impeller is an arc shaped blade; It is characterized in that also having an opening on said pump case peripheral wall except that water outlet is tap hole; The tap hole installed inside has the hinge-lid type valve plate, and said hinge-lid type valve plate is that on one side relatively pump case is fixed and remaining part can seal or open the part of tap hole effect according to plaing of stirring of this fixed edge; Installation relation between hinge-lid type valve plate and the pump case is when impeller is rotated in the forward, and the fixed edge of hinge-lid type valve plate and pump case inwall is in the upstream of tap hole, and this valve plate has the cambered surface of pasting and constitute sealing with tap hole place pump house wall cambered surface mutually; The scope of stirring and the wheel rotation scope of valve plate are non-intersect.
2. the centrifugal pump of synchronous machine drives as claimed in claim 1 is characterized in that said hinge-lid type valve plate is the hard valve plate with metal or plastic production, and said fixed edge is with the limit of pivot knuckles on pump case with the hard valve plate.
3. the centrifugal pump of synchronous machine drives as claimed in claim 1, it is characterized in that said hinge-lid type valve plate is the hard valve plate with metal or plastic production, said fixed edge is with the narrow and small plate body of the hard of metal or plastic production, valve plate is connected through flexible flanging with fixed edge, and fixed edge is fixedly installed on the pump case.
4. the centrifugal pump of synchronous machine drives as claimed in claim 3, it is characterized in that the flexible flanging that is connected between said valve plate and the fixed edge is to connect metal or the hard valve plate of plastic production and the hinge between the fixed edge, perhaps connects the hard valve plate of plastic production and the thermoplastic elastomer (TPE) between the fixed edge.
5. the centrifugal pump of synchronous machine drives as claimed in claim 1 is characterized in that said hinge-lid type valve plate is the elasticity valve plate of making of rubber, and said fixed edge is that the elasticity valve plate is fixedly installed to limit on the pump case.
6. as the centrifugal pump of claim 1 or 2 or 3 or 4 or 5 described synchronous machine drives, it is characterized in that the fixed edge on the said peripheral wall that valve plate is connected pump case is parallel to impeller shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201965317U CN201521460U (en) | 2009-09-15 | 2009-09-15 | Centrifugal pump driven by synchronous machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201965317U CN201521460U (en) | 2009-09-15 | 2009-09-15 | Centrifugal pump driven by synchronous machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521460U true CN201521460U (en) | 2010-07-07 |
Family
ID=42507637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201965317U Expired - Lifetime CN201521460U (en) | 2009-09-15 | 2009-09-15 | Centrifugal pump driven by synchronous machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521460U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026737A (en) * | 2018-08-02 | 2018-12-18 | 广州市能动机电设备有限公司 | A kind of centrifugal water pump |
-
2009
- 2009-09-15 CN CN2009201965317U patent/CN201521460U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026737A (en) * | 2018-08-02 | 2018-12-18 | 广州市能动机电设备有限公司 | A kind of centrifugal water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SUNSUN GROUP CO., LTD. Free format text: FORMER OWNER: ZHEJIANG SUNSUN INDUSTRIAL CO., LTD. Effective date: 20120914 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 316000 ZHOUSHAN, ZHEJIANG PROVINCE TO: 316015 ZHOUSHAN, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120914 Address after: 316015 Zhejiang province Dinghai District of Zhoushan City Ma Ao Zhen Bai Ma Street No. 61-79 Patentee after: Sunsun Group Co., Ltd. Address before: 316000 Zhejiang province Dinghai District of Zhoushan City Ma Ao Zhen Bai Ma Street No. 61-79 Patentee before: ZheJiang Sunsun Industrial Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150917 Address after: 316015 Zhejiang province Dinghai District of Zhoushan City Ma Ao Zhen Bai Ma Street No. 61-79 Patentee after: Sunsun Group Co., Ltd. Patentee after: Zhoushan pond gardening equipment Co., Ltd. Address before: 316015 Zhejiang province Dinghai District of Zhoushan City Ma Ao Zhen Bai Ma Street No. 61-79 Patentee before: Sunsun Group Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160218 Address after: 316000 Zhejiang province Dinghai District of Zhoushan City Ma Ao Zhen Bai Ma Street No. 61-79 Patentee after: Sunsun Group Co., Ltd. Patentee after: Zhejiang Chi garden gardening products Co., Ltd. Address before: 316000 Zhejiang province Dinghai District of Zhoushan City Ma Ao Zhen Bai Ma Street No. 61-79 Patentee before: Sunsun Group Co., Ltd. Patentee before: Zhoushan pond gardening equipment Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100707 |
|
| CX01 | Expiry of patent term |