CN204755377U - Vertical axial -flow pump - Google Patents
Vertical axial -flow pump Download PDFInfo
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- CN204755377U CN204755377U CN201520401712.4U CN201520401712U CN204755377U CN 204755377 U CN204755377 U CN 204755377U CN 201520401712 U CN201520401712 U CN 201520401712U CN 204755377 U CN204755377 U CN 204755377U
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- central siphon
- rotating shaft
- main body
- flow pump
- stator main
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Abstract
The utility model provides a vertical axial -flow pump belongs to mechanical technical field. It is fragile that it has solved current vertical axial -flow pump pivot, short class of technical problem of life. This vertical axial -flow pump includes central siphon and pivot, and the central siphon cover is established in the pivot and the axis coincidence of pivot and central siphon, and the upper end of central siphon has the last flange that is formed by the central siphon to the out -draw, go up the flange and link firmly with going out the water return bend, and the shape of the shape that goes up the flange and the upper wall that goes out the water return bend matches, and the lower extreme of central siphon has the lower flange that is formed by the central siphon to the out -draw, and lower flange and diffuser link firmly. The utility model discloses the design of central siphon can avoid the direct liquid phase with being carried of pivot to contact, has reduced the corruption of liquid countershaft and the wearing and tearing of gravel and sand countershaft, has improved the life of pivot.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of vertical-type axial-flow pump.
Background technique
Axial-flow pump is the pump leaning on the blade of spinning roller impeller to the active force that liquid produces, liquid to be carried in the axial direction, mainly be applicable to the occasion of low lift, large discharge, water level as irrigation, water drainage, dock draining, canal ship lock regulates, or is used as power plant's System in Large Circulating Water Pump.The impeller of common axial-flow pump comprises following several parts: impeller boss, 2 ~ 7 blades be arranged on impeller boss, be arranged on the movable vane head of impeller boss end; Impeller boss, blade and movable vane head form impeller jointly, and impeller rotates in tubular shape pump case, and the pump case of upper impeller is equipped with fixed guide vane, in order to eliminate the rotary motion of liquid, make it to become axial motion, and are pressure energy the kinetic energy of rotary motion.
Axial-flow pump is single-stage normally, and minority makes stage type, and range of flow is very large, be 180 ~ 36 ten thousand steres/time, lift is generally below 20 meters, and axial-flow pump is generally vertical, and impeller is immersed under water, also has horizontal or inclined axial flow.
Application number a kind of axial-flow pump that has been the disclosure of the invention of " 201310205082.9 ", comprise water-inlet horn body, diffuser, the cascade pump housing, Discharging bent-tube, impeller and rotating shaft, the housing of water-inlet horn body, diffuser, the cascade pump housing and Discharging bent-tube are interconnected to form the frame of axial-flow pump, rotating shaft runs through the inner barrel of Discharging bent-tube, the cascade pump housing and diffuser and is connected to impeller, impeller is fixed in rotating shaft, impeller is positioned at below the inner barrel of diffuser, a part for impeller is positioned at the housing of diffuser, and impeller extends in water-inlet horn body.
But the rotating shaft of this axial-flow pump is outside exposed, after the time grown, the liquid being easy to be transferred corroded; Flow again due to axial-flow pump is comparatively large, when there is stone or a large amount of silt in the liquid carried, being easy to damage rotating shaft, decreasing the working life of axial-flow pump.
Summary of the invention
The problems referred to above that the utility model exists for existing technology, provide a kind of vertical-type axial-flow pump, technical problem to be solved in the utility model is: the life-span of how effectively to improve the rotating shaft of axial-flow pump.
The purpose of this utility model realizes by following technical proposal:
A kind of vertical-type axial-flow pump, comprise frame, diffuser, impeller and rotating shaft, it is characterized in that, described frame cylindrically, described rotating shaft to be located in described frame and coaxially to be arranged with described frame, the waterexit end of described frame forms Discharging bent-tube to side edge bending, the upper wall of described Discharging bent-tube is passed in the upper end of described rotating shaft, the lower end of described rotating shaft is passed diffuser and is connected with the impeller being positioned at diffuser lower end, described vertical-type axial-flow pump also comprises central siphon, described central siphon is set in rotating shaft and described rotating shaft overlaps with the medial axis of central siphon, the upper end of described central siphon has and stretches out by central siphon the upper flange formed, described upper flange and described Discharging bent-tube are connected, and the matching form of the upper wall of the shape of described upper flange and described Discharging bent-tube closes, the lower end of described central siphon has and stretches out by central siphon the lower flange formed, described lower flange and described diffuser are connected.
Its working principle is as follows: this vertical-type axial-flow pump is at the outer sheathed central siphon of rotating shaft, and this central siphon is fixed between the upper wall of Discharging bent-tube and diffuser, the design of central siphon can avoid rotating shaft directly to contact with the liquid be transferred, decrease the corrosion of liquid countershaft, even if there are more sandstone in the liquid be transferred, due to the protection of central siphon, rotating shaft also can not be worn; When central siphon wearing and tearing are comparatively serious, only central siphon need be changed, again because the requirement of central siphon to materials and process is lower, fabricating cost is more much lower than rotating shaft, therefore the design of central siphon not only can reduce the wearing and tearing of rotating shaft, improves the rotating shaft life-span, can also reduce maintenance cost.
In above-mentioned a kind of vertical-type axial-flow pump, described diffuser comprises stator main body, described stator main body cylindrically and described stator main body and described rotating shaft coaxially arrange, the upper end of described stator main body is provided with the mounting groove coordinated with described lower flange, and described lower flange and described stator main body are fixed by screw.The design of lower flange can improve the fastness that central siphon is connected with stator main body; be connected by screw and make the degree of being connected firmly between central siphon and stator main body higher; enable central siphon countershaft play better protective action, and dismounting is comparatively simple, facilitates the replacing of central siphon.
In above-mentioned a kind of vertical-type axial-flow pump, described diffuser also comprises several guide vanes, each guide vane is evenly fixed on the sidewall of stator main body centered by the medial axis of stator main body, the inner of each guide vane is all welded with described stator main body, and the outer end of each guide vane is all welded and fixed with the inwall of frame.Vertical-type axial-flow pump is by Liquid extracting by the rotation of impeller, therefore the liquid extracted up is rotational flow, and the liquid of rotational flow can be become axial flow by the design of diffuser, reduce the impact of liquid to central siphon and rotating shaft, improve the working life of central siphon, decrease the replacing number of times of central siphon; After central siphon sometimes damages, fail Timeliness coverage changing, therefore this design also also improves the working life of rotating shaft accordingly.
In above-mentioned a kind of vertical-type axial-flow pump, described Discharging bent-tube has positioning part, described positioning part is provided with the axis hole passed through for rotating shaft, and described central siphon is communicated with described axis hole, and the inner diameter of described central siphon is greater than the diameter of described axis hole.The design of positioning part can make rotating shaft position when rotated not offset, and avoids rotating shaft to come in contact with the inwall of central siphon in rotary course, causes the wearing and tearing of rotating shaft, decrease the life-span of rotating shaft; And the diameter that the inner diameter of central siphon is greater than axis hole is also directly contact with the inwall of central siphon in order to avoid rotating shaft, reduces the wearing and tearing of rotating shaft, improve the working life of rotating shaft.
In above-mentioned a kind of vertical-type axial-flow pump, the matching form of the inwall of the Discharging bent-tube around the shape of described upper flange and described positioning part closes, and described upper flange and described Discharging bent-tube are bolted.The form fit of the inwall of the Discharging bent-tube around the shape of upper flange and positioning part can make the surface of upper flange and the inwall of Discharging bent-tube be close to, improve the sealing between upper flange and the inwall of Discharging bent-tube, liquid or sandstone are avoided to enter in central siphon, thus rotating shaft is corroded and weares and teares, decrease the working life of rotating shaft.
In above-mentioned a kind of vertical-type axial-flow pump, described impeller comprises wheel blade and wheel hub, described wheel blade and described hub welding are fixed, described rotating shaft and described wheel hub are connected, the upper-end surface of described wheel hub is rounded, there is space between the upper-end surface of described wheel hub and the lower end surface of stator main body, and the diameter of the upper-end surface of described wheel hub is greater than the diameter of described stator main body lower end surface.The upper-end surface of wheel hub and the lower end surface of stator main body near, and the diameter of the upper-end surface of described wheel hub is greater than the diameter of described stator main body lower end surface, when this design can make work, liquid can not enter in central siphon from the lower end of diffuser, thus causes corrosion and the wearing and tearing of rotating shaft.
In above-mentioned a kind of vertical-type axial-flow pump, the inwall of described stator main body is provided with the annular support member for supporting revolving shaft, and the inner diameter of described annular support member is less than the inner diameter of described central siphon.This annular support member can the lower end of countershaft be played a supporting role, and avoids the lower end of rotating shaft during axis of rotation to offset, thus causes rotating shaft and central siphon to come in contact, cause the wearing and tearing of rotating shaft.
Compared with prior art, advantage of the present utility model is as follows:
1, this vertical-type axial-flow pump is at the outer sheathed central siphon of rotating shaft; and this central siphon is fixed between the upper wall of Discharging bent-tube and diffuser; the design of central siphon can avoid rotating shaft directly to contact with the liquid be transferred; decrease the corrosion of liquid countershaft; even if there are more sandstone in the liquid be transferred; due to the protection of central siphon, rotating shaft also can not be worn, and improves the working life of rotating shaft.
2, the design of upper flange and lower flange, improves fastness and the sealing of central siphon connection, avoids liquid or sandstone to enter in central siphon, thus rotating shaft is corroded and weares and teares, reduce the working life of rotating shaft.
3, the design of positioning part and annular support member, can make the position of rotating shaft upper and lower end fix, and avoids the position of rotating shaft during axis of rotation to offset, and causes rotating shaft and central siphon to come in contact, causes the wearing and tearing of rotating shaft, effectively can improve the working life of rotating shaft.
Accompanying drawing explanation
Fig. 1 is the structural representation of this vertical-type axial-flow pump.
Fig. 2 is the sectional view at the diffuser place of this vertical-type axial-flow pump.
In figure, 1 frame; 2 diffusers; 3 impellers; 4 rotating shafts; 5 Discharging bent-tubes; 6 central siphons; 7 upper flanges; 8 lower flanges; 9 stator main bodys; 10 guide vanes; 11 positioning parts; 12 axis holes; 13 wheel blades; 14 wheel hubs; 15 annular support members.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, this vertical-type axial-flow pump comprises frame 1, diffuser 2, impeller 3, central siphon 6 and rotating shaft 4, frame 1 cylindrically, rotating shaft 4 to be located in frame 1 and coaxially to be arranged with frame 1, the waterexit end of frame 1 forms Discharging bent-tube 5 to side edge bending, the upper wall of Discharging bent-tube 5 is passed in the upper end of rotating shaft 4, the lower end of rotating shaft 4 is passed diffuser 2 and is connected with the impeller 3 being positioned at diffuser 2 lower end, central siphon 6 is set in rotating shaft 4 and rotating shaft 4 overlaps with the medial axis of central siphon 6, the upper end of central siphon 6 has and stretches out by central siphon 6 upper flange 7 formed, upper flange 7 and Discharging bent-tube 5 are connected, and the matching form of the upper wall of the shape of upper flange 7 and Discharging bent-tube 5 closes, the lower end of central siphon 6 has and stretches out by central siphon 6 lower flange 8 formed, lower flange 8 and diffuser 2 are connected.
As shown in Figure 1, the matching form of the inwall of the Discharging bent-tube 5 around the shape of the upper flange 7 of this vertical-type axial-flow pump and positioning part 11 closes, and upper flange 7 and Discharging bent-tube 5 are bolted.The form fit of the inwall of the Discharging bent-tube 5 around the shape of upper flange 7 and positioning part 11 can make the inwall of the surface of upper flange 7 and Discharging bent-tube 5 be close to, improve the sealing between upper flange 7 and the inwall of Discharging bent-tube 5, liquid or sandstone are avoided to enter in central siphon 6, thus make rotating shaft 4 be corroded and wear and tear, decrease the working life of rotating shaft 4.
As shown in Figure 2, the diffuser 2 of this vertical-type axial-flow pump comprises stator main body 9, stator main body 9 cylindrically and stator main body 9 and rotating shaft 4 coaxially arrange, the upper end of stator main body 9 is provided with the mounting groove coordinated with lower flange 8, and lower flange 8 and stator main body 9 are fixed by screw.The design of lower flange 8 can improve the fastness that central siphon 6 is connected with stator main body 9, be connected by screw and make the degree of being connected firmly between central siphon 6 and stator main body 9 higher, make central siphon 6 can play better protective action by countershaft 4, and dismounting is comparatively simple, facilitates the replacing of central siphon 6; Diffuser 2 also comprises several guide vanes 10, each guide vane 10 is evenly fixed on the sidewall of stator main body 9 centered by the medial axis of stator main body 9, the inner of each guide vane 10 is all welded with stator main body 9, and the outer end of each guide vane 10 is all welded and fixed with the inwall of frame 1.Vertical-type axial-flow pump is by Liquid extracting by the rotation of impeller 3, therefore the liquid extracted up is rotational flow, and the liquid of rotational flow can be become axial flow by the design of diffuser 2, reduce the impact of liquid to central siphon 6 and rotating shaft 4, improve the working life of central siphon 6, decrease the replacing number of times of central siphon 6; After central siphon 6 sometimes damages, fail Timeliness coverage changing, therefore this design also also improves the working life of rotating shaft 4 accordingly.
The Discharging bent-tube 5 of this vertical-type axial-flow pump has positioning part 11, positioning part 11 is provided with the axis hole 12 passed through for rotating shaft 4, central siphon 6 is communicated with axis hole 12, and the inner diameter of central siphon 6 is greater than the diameter of axis hole 12, the inwall of stator main body 9 is provided with the annular support member 15 for supporting revolving shaft 4, and the inner diameter of annular support member 15 is less than the inner diameter of central siphon 6.The design of this annular support member 15 and positioning part 11 can be played a supporting role by countershaft 4, and when avoiding rotating shaft 4 to rotate, rotating shaft 4 occurs to offset and causes coming in contact with the inwall of central siphon 6, causes the wearing and tearing of rotating shaft 4, reduces the life-span of rotating shaft 4; And the inner diameter of diameter and annular support member 15 that the inner diameter of central siphon 6 is greater than axis hole 12 is also in order to avoid rotating shaft 4 contacts with central siphon 6, reduces the wearing and tearing of rotating shaft 4, improve the working life of rotating shaft 4.
As shown in Figure 1, impeller 3 comprises wheel blade 13 and wheel hub 14, wheel blade 13 and wheel hub 14 are welded and fixed, rotating shaft 4 and wheel hub 14 are connected, the upper-end surface of wheel hub 14 is rounded, space is there is between the upper-end surface of wheel hub 14 and the lower end surface of stator main body 9, and the diameter of the upper-end surface of wheel hub 14 is greater than the diameter of stator main body 9 lower end surface, the upper-end surface of wheel hub 14 and the lower end surface of stator main body 9 near, and the diameter of the upper-end surface of wheel hub 14 is greater than the diameter of stator main body 9 lower end surface, when this design can make work, liquid can not enter in central siphon 6 from the lower end of diffuser 2, thus cause corrosion and the wearing and tearing of rotating shaft 4.
Its working principle is as follows: this vertical-type axial-flow pump is at the outer sheathed central siphon 6 of rotating shaft 4, and this central siphon 6 is fixed between the upper wall of Discharging bent-tube 5 and diffuser 2, the design of central siphon 6 can avoid rotating shaft 4 directly to contact with the liquid be transferred, decrease the corrosion of liquid countershaft 4, even if there are more sandstone in the liquid be transferred, due to the protection of central siphon 6, rotating shaft 4 also can not be worn; When central siphon 6 weares and teares comparatively serious, only need change central siphon 6, the requirement again due to central siphon 6 pairs of materials and process is lower, fabricating cost is more much lower than rotating shaft 4, therefore the design of central siphon 6 not only can reduce the wearing and tearing of rotating shaft 4, improves rotating shaft 4 life-span, can also reduce maintenance cost.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (7)
1. a vertical-type axial-flow pump, comprise frame (1), diffuser (2), impeller (3) and rotating shaft (4), it is characterized in that, described frame (1) cylindrically, described rotating shaft (4) to be located in described frame (1) and coaxially to be arranged with described frame (1), the waterexit end of described frame (1) forms Discharging bent-tube (5) to side edge bending, the upper wall of described Discharging bent-tube (5) is passed in the upper end of described rotating shaft (4), the lower end of described rotating shaft (4) is passed diffuser (2) and is connected with the impeller (3) being positioned at diffuser (2) lower end, described vertical-type axial-flow pump also comprises central siphon (6), described central siphon (6) is set in the upper and described rotating shaft (4) of rotating shaft (4) and overlaps with the medial axis of central siphon (6), the upper end of described central siphon (6) has and stretches out by central siphon (6) upper flange (7) formed, described upper flange (7) and described Discharging bent-tube (5) are connected, and the matching form of the upper wall of the shape of described upper flange (7) and described Discharging bent-tube (5) closes, the lower end of described central siphon (6) has and stretches out by central siphon (6) lower flange (8) formed, described lower flange (8) and described diffuser (2) are connected.
2. a kind of vertical-type axial-flow pump according to claim 1, it is characterized in that, described diffuser (2) comprises stator main body (9), described stator main body (9) cylindrically and described stator main body (9) and described rotating shaft (4) coaxially arrange, the upper end of described stator main body (9) is provided with the mounting groove coordinated with described lower flange (8), and described lower flange (8) and described stator main body (9) are fixed by screw.
3. a kind of vertical-type axial-flow pump according to claim 1 and 2, it is characterized in that, described Discharging bent-tube (5) has positioning part (11), described positioning part (11) is provided with the axis hole (12) passed through for rotating shaft (4), described central siphon (6) is communicated with described axis hole (12), and the inner diameter of described central siphon (6) is greater than the diameter of described axis hole (12).
4. a kind of vertical-type axial-flow pump according to claim 2, it is characterized in that, the inwall of described stator main body (9) is provided with the annular support member (15) for supporting revolving shaft (4), and the inner diameter of described annular support member (15) is less than the inner diameter of described central siphon (6).
5. a kind of vertical-type axial-flow pump according to claim 3, it is characterized in that, the matching form of the inwall of the shape of described upper flange (7) and described positioning part (11) Discharging bent-tube (5) around closes, and described upper flange (7) and described Discharging bent-tube (5) are bolted.
6. a kind of vertical-type axial-flow pump according to claim 2 or 4, it is characterized in that, described impeller (3) comprises wheel blade (13) and wheel hub (14), described wheel blade (13) and described wheel hub (14) are welded and fixed, described rotating shaft (4) and described wheel hub (14) are connected, the upper-end surface of described wheel hub (14) is rounded, there is space between the upper-end surface of described wheel hub (14) and the lower end surface of stator main body (9), and the diameter of the upper-end surface of described wheel hub (14) is greater than the diameter of described stator main body (9) lower end surface.
7. a kind of vertical-type axial-flow pump according to claim 2 or 4, it is characterized in that, described diffuser (2) also comprises several guide vanes (10), each guide vane (10) is evenly fixed on the sidewall of stator main body (9) centered by the medial axis of stator main body (9), the inner of each guide vane (10) is all welded with described stator main body (9), and the outer end of each guide vane (10) is all welded and fixed with the inwall of frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401712.4U CN204755377U (en) | 2015-06-11 | 2015-06-11 | Vertical axial -flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401712.4U CN204755377U (en) | 2015-06-11 | 2015-06-11 | Vertical axial -flow pump |
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| Publication Number | Publication Date |
|---|---|
| CN204755377U true CN204755377U (en) | 2015-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520401712.4U Expired - Fee Related CN204755377U (en) | 2015-06-11 | 2015-06-11 | Vertical axial -flow pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN204755377U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100836A (en) * | 2017-04-26 | 2017-08-29 | 哈尔滨工程大学 | A kind of Unitary Impeller is pressurized three screw pump |
| CN110056543A (en) * | 2019-06-05 | 2019-07-26 | 高邮环流泵业有限公司 | A kind of bend pipe |
| CN111677671A (en) * | 2020-06-19 | 2020-09-18 | 高邮市大江泵业有限公司 | Novel built-in disrotatory axial-flow pump |
| CN112870547A (en) * | 2021-02-07 | 2021-06-01 | 华中科技大学同济医学院附属协和医院 | Serial axial flow pump auxiliary device for treating Fontan postoperative circulation failure and using method thereof |
| CN117722365A (en) * | 2024-02-18 | 2024-03-19 | 江苏江进泵业有限公司 | Vertical axial flow pump with magnetic attraction stabilizing function |
-
2015
- 2015-06-11 CN CN201520401712.4U patent/CN204755377U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100836A (en) * | 2017-04-26 | 2017-08-29 | 哈尔滨工程大学 | A kind of Unitary Impeller is pressurized three screw pump |
| CN110056543A (en) * | 2019-06-05 | 2019-07-26 | 高邮环流泵业有限公司 | A kind of bend pipe |
| CN111677671A (en) * | 2020-06-19 | 2020-09-18 | 高邮市大江泵业有限公司 | Novel built-in disrotatory axial-flow pump |
| CN111677671B (en) * | 2020-06-19 | 2021-06-22 | 高邮市大江泵业有限公司 | Built-in disrotatory axial-flow pump |
| CN112870547A (en) * | 2021-02-07 | 2021-06-01 | 华中科技大学同济医学院附属协和医院 | Serial axial flow pump auxiliary device for treating Fontan postoperative circulation failure and using method thereof |
| CN117722365A (en) * | 2024-02-18 | 2024-03-19 | 江苏江进泵业有限公司 | Vertical axial flow pump with magnetic attraction stabilizing function |
| CN117722365B (en) * | 2024-02-18 | 2024-05-10 | 江苏江进泵业有限公司 | Vertical axial flow pump with magnetic attraction stabilizing function |
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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: 20151111 Termination date: 20160611 |
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| CF01 | Termination of patent right due to non-payment of annual fee |