CN204327523U - The high-lift single suction self-balanced thrust Submerged Motor Pumps of water inlet in the middle of a kind of - Google Patents
The high-lift single suction self-balanced thrust Submerged Motor Pumps of water inlet in the middle of a kind of Download PDFInfo
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- CN204327523U CN204327523U CN201420744013.5U CN201420744013U CN204327523U CN 204327523 U CN204327523 U CN 204327523U CN 201420744013 U CN201420744013 U CN 201420744013U CN 204327523 U CN204327523 U CN 204327523U
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Abstract
The utility model relates to the high-lift single suction self-balanced thrust Submerged Motor Pumps of a kind of middle water inlet.Submerged Motor Pumps comprises the submersible pump and drive end that arrange from top to bottom, and submersible pump comprises the water exit end be installed on pump shaft, the section of confluxing, the second pump water section, middle suction casing, the first pump water section, Spit Section and pump machine connecting section; The middle water outlet of suction casing and the water intake of the first pump water section are connected, the water outlet of the first pump water section and the water intake of Spit Section are connected, and the water intake of runner in the first pump water section and middle suction casing of the discharge opening of Spit Section and the second pump water section is connected; The water outlet of the second pump water section is connected by the section of confluxing and water exit end; Impeller set-up mode in first pump water section and the second pump water section makes when submersible pump works, the axial force suffered by the first pump water section make a concerted effort and axial force suffered by the second pump water section point to the other side mutually with joint efforts.The mode of water inlet in the middle of this submersible pump adopts, pump shaft uniform force, submersible pump operates steadily reliably.
Description
Technical field
The utility model belongs to pump technology field, is specifically related to the high-lift single suction self-balanced thrust Submerged Motor Pumps of a kind of middle water inlet.
Background technique
Along with the raising of the level of production, Submerged Motor Pumps is applied to the main draining of production in mine, forced-ventilated water and after flooding well in complex ore draining more and more.And along with the continuous increase of coal mining depth, the water displacement in colliery is also larger, therefore also just more need the submersible pump of large discharge.
Traditional horizontal, vertical multi-stage submersible pump be by several and even tens impeller serials on a pump shaft, along with the increase of progression, the axial force acted on pump shaft also becomes geometrical progression amount to increase, simultaneously due to existing design concept and project organization existing defects, cause pump shaft discontinuity, make axial force suffered by the pump shaft of submersible pump water outlet end comparatively large, and easily there is inter-stage external leakage phenomenon in the pump section of submersible pump water outlet end; In addition, when pump shaft discontinuity, Multiple Sinking Pump operationally vibrates large and is easy to break down, and therefore urgently improves.
Model utility content
The purpose of this utility model is the deficiency overcoming above-mentioned prior art, provides a kind of middle water inlet high-lift single suction self-balanced thrust Submerged Motor Pumps, and the mode of water inlet in the middle of this submersible pump adopts, pump shaft uniform force, submersible pump operates steadily reliably.
For achieving the above object, the utility model have employed following technological scheme:
The high-lift single suction self-balanced thrust Submerged Motor Pumps of water inlet in the middle of a kind of, the drive end comprising submersible pump and drive submersible pump pump shaft to rotate, described submersible pump comprises fixed cover from top to bottom and is located at water exit end on pump shaft, the section of confluxing, the second pump water section, middle suction casing, the first pump water section, Spit Section and pump machine connecting section;
Described middle suction casing is provided with water sucking mouth, the water outlet of middle suction casing is connected with the water intake of the first pump water section, the described water outlet of the first pump water section and the water intake of Spit Section are connected, and the water intake of runner in the first pump water section and middle suction casing of the discharge opening of described Spit Section and the second pump water section is connected; The water outlet of described second pump water section is connected by the section of confluxing and water exit end;
Impeller set-up mode in described first pump water section and the second pump water section makes when submersible pump works, the axial force suffered by the first pump water section make a concerted effort and axial force suffered by the second pump water section point to the other side mutually with joint efforts;
The housing of described pump machine connecting section is provided with easy access mouth, and described pump shaft is provided with at described access hole place the coupling the two being connected and being fixed together with the output shaft of drive end.
Preferably, described first pump water section comprises and is set in the first pump case on pump shaft and the first stator, the first impeller arranged with the first stator one_to_one corresponding is also provided with in first pump water section, first impeller is sheathed to be fixed on pump shaft, described first stator is arranged on the back side in the water delivery direction of the first corresponding impeller, and described first pump case is set in all sides of the first stator and the first impeller; Described first pump case, the first stator and the first impeller three form a first water delivery mechanism, and described first water delivery mechanism is provided with multiple along the axis of pump shaft; The impeller eye of chopped-off head first water delivery mechanism and the water outlet of middle suction casing are connected, and the impeller outlet of final stage first water delivery mechanism and the discharge opening of Spit Section are connected;
Described second pump water section comprises and is set in the second pump case on pump shaft and the second stator, the second impeller arranged with the second stator one_to_one corresponding is also provided with in second pump water section, second impeller is sheathed to be fixed on pump shaft, described second stator is arranged on the back side in the water delivery direction of the second corresponding impeller, and described second pump case is set in all sides of the second stator and the second impeller; Described second pump case, the second stator and the second impeller three form a second water delivery mechanism, and described second water delivery mechanism is provided with multiple along the axis of pump shaft; Flow channels on the impeller eye of chopped-off head second water delivery mechanism and middle suction casing is connected, and the impeller outlet of final stage second water delivery mechanism is connected by the section of confluxing and water exit end;
The water intake of described first impeller and the second impeller is oppositely arranged.
Preferably, described first pump case is provided with the hole passed through for pull bar and the confession water flow passage passed through for fluid along the axis of pump shaft; Described second pump case is provided with the hole passed through for pull bar along the axis of pump shaft;
The described feed-water end of water flow passage and the discharge opening of Spit Section of supplying is connected, and the waterexit end for water flow passage is connected by the impeller eye of the flow channels on described middle suction casing and chopped-off head second water delivery mechanism.
Preferably, described drive end is arranged on the downside of pump machine connecting section, and described drive end comprises motor, and output shaft and the pump shaft of described motor are connected, and the bottom of described motor is provided with thrust bearing part.
Preferably, described coupling comprises the first sleeve and the second sleeve, described first set jacket casing is located at the outside of described pump shaft and described both output shafts end, described second jacket casing is located at the outside of the first sleeve, the cylindrical shell of described first sleeve and the second sleeve is provided with the multiple tapped through holes corresponded to each other from top to bottom, described pump shaft and described output shaft are respectively arranged with the retaining thread hole of matching with tapped through hole; Bolt or screw pass the tapped through hole on the second sleeve and the first sleeve successively and screw in retaining thread hole and pump shaft and output shaft be fixedly connected.
Further, the length of described first sleeve is greater than the length of the second sleeve.
Further, described drive end is provided with in the downside of thrust bearing part coaxial with described output shaft and is connected in series the cooling wheel arranged.
The beneficial effects of the utility model show:
1), the middle part of the utility model in the first pump water section and the second pump water section is provided with the middle suction casing be connected with the runner in the two respectively, when submersible pump works, water is entered by the suction port of middle suction casing, then enter the first pump water section downwards, water is through the backward upper feeding second pump water section of the first pump water section pressurization.The water intake of multiple second impellers in multiple first impeller in the first pump water section and the second pump water section is oppositely arranged, thus when submersible pump is worked, axial force suffered by first pump water section make a concerted effort and axial force suffered by the second pump water section point to the other side mutually with joint efforts, this structure can to make on pump shaft suffered axial force cancel each other, thus stability, balance and reliability when further ensure that pump shaft works.
2), the utility model is provided with the middle suction casing of suction port at the middle part of submersible pump, not only reduce the requirement to colliery water level, also make pump structure become simple, also reduce installation and the manufacture difficulty of pump, save material and energy consumption, also reduce the rate of fault of submersible pump simultaneously.
3) coupling, in the utility model is made up of the first sleeve of fit each other and the second sleeve, the first longer sleeve is arranged on inner side, the second shorter sleeve is arranged on outside, by the first sleeve output shaft to be docked each other with pump shaft and together with being linked in, then be each passed through the second sleeve and the first sleeve with multiple fastening piece and screw in pump shaft or output shaft, pump shaft and output shaft can be fixedly connected.This connecting structure not only tightness is good, and for ease of maintenaince maintains, and the utility model is provided with access hole at coupling place, has further facilitated I&M.
4), in the utility model the first sleeve is longer, and the second sleeve is shorter, and the outer short structure of this borough chief can guarantee the tightness that pump shaft connects with output shaft and reliability, ensure that coupling has longer working life.
5), also cooling wheel is provided with in the utility model, then when machine operation, cooling wheel follows output shaft rotation, and cold water is sent into motor internal from bottom to top, thus make motor obtain good cooling, ensure that motor can the work of lasting stability for a long time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of submersible pump.
Fig. 3 is the structural representation of pump machine connecting section.
Fig. 4 is the structural representation of drive end.
The implication of the reference character in figure is as follows:
10-drive end, 11-motor, 12-rotor, 13-thrust bearing part
14-cooling wheel, 15-output shaft
20-pump shaft, 30-submersible pump, 31-pump machine connecting section, 311-access hole
312-coupling 312a-the first sleeve 312b-the second sleeve
32-Spit Section, 321-discharge opening 33-the first pump water section 331-the first pump case
332-the first stator 333-the first impeller 334-confession water flow passage
34-middle suction casing 341-suction port, 342-flow channels
343-the first stepped counterbore 344-second-order scalariform counterbore 345-become a mandarin stator
35-the second pump water section 351-the second pump case 352-the second stator
353-the second impeller 36-section of confluxing 37-water exit end 38-pull bar
Embodiment
As shown in Figure 1, this Submerged Motor Pumps is made up of submersible pump 30 and drive end 10 from top to bottom.
As shown in Figure 1, 2, described submersible pump 30 comprises fixed cover from top to bottom and is located at water exit end 37 on pump shaft 20, the section of confluxing 36, second pump water section 35, middle suction casing 34, first pump water section 33, Spit Section 32 and pump machine connecting section 31; This submersible pump also comprises and is connected successively by above-mentioned each segment structure and conspires to create an overall pull bar 38.
As shown in Fig. 1,4, described drive end 10 is arranged on the downside of pump machine connecting section 31, and described drive end 10 comprises motor 11, and output shaft 15 and the pump shaft of described motor 11 are connected, and the bottom of described motor 11 is provided with thrust bearing part 13.The downside of described thrust bearing part 13 is provided with coaxial with described output shaft 15 and is connected in series the cooling wheel 14 arranged.
As shown in Figure 3, coupling 312 is provided with in pump machine connecting section 31, described coupling 312 comprises the first sleeve 312a and the second sleeve 312b, described first sleeve 312a is set in the outside of both described pump shaft 20 and described output shaft 15 end, described second sleeve 312b is set in the outside of the first sleeve 312a, the cylindrical shell of described first sleeve 312a and the second sleeve 312b is provided with the multiple tapped through holes corresponded to each other from top to bottom, and described pump shaft 20 and described output shaft 15 are respectively arranged with the retaining thread hole of matching with tapped through hole; Bolt or screw pass the tapped through hole on the second sleeve 312b and the first sleeve 312a successively and screw in retaining thread hole and pump shaft 20 and output shaft 15 be fixedly connected.The length of described first sleeve 312a is greater than the length of the second sleeve 312b.
As shown in Figure 1, 2, described middle suction casing 34 is provided with water sucking mouth 341, the water outlet of middle suction casing 34 is connected with the water intake of the first pump water section 33, the described water outlet of the first pump water section 33 and the water intake of Spit Section 32 are connected, and the water intake of runner in the first pump water section 33 and middle suction casing 34 of the discharge opening 321 of described Spit Section 32 and the second pump water section 35 is connected; The water outlet of described second pump water section 35 is connected by the section of confluxing 36 and water exit end 37.
As shown in Figure 2, described first pump water section 33 comprises the first pump case 331 and the first stator 332 be set on pump shaft 20, the first impeller 333 arranged with the first stator 332 one_to_one corresponding is also provided with in first pump water section 33, first impeller 333 is sheathed to be fixed on pump shaft 20, described first stator 333 is arranged on the back side in the water delivery direction of the first corresponding impeller 333, and described first pump case 331 is set in all sides of the first stator 332 and the first impeller 333; Described first pump case 331, first stator 332 and the first impeller 333 three form a first water delivery mechanism, and described first water delivery mechanism is provided with multiple along the axis of pump shaft 20; The impeller eye of chopped-off head first water delivery mechanism and the water outlet of middle suction casing 34 are connected, and the impeller outlet of final stage first water delivery mechanism and the discharge opening 321 of Spit Section 32 are connected.Described first pump case 331 is provided with for water flow passage 334 along the axis of pump shaft 20, the described feed-water end of water flow passage 334 and the discharge opening 321 of Spit Section 32 of supplying is connected, and the waterexit end for water flow passage 334 is connected with the impeller eye of chopped-off head second water delivery mechanism by the flow channels 342 on described middle suction casing 34.
As shown in Figure 2, described second pump water section 35 comprises the second pump case 351 and the second stator 352 be set on pump shaft 20, the second impeller 353 arranged with the second stator 352 one_to_one corresponding is also provided with in second pump water section 35, second impeller 353 is sheathed to be fixed on pump shaft 20, described second stator 352 is arranged on the back side in the water delivery direction of the second corresponding impeller 353, and described second pump case 351 is set in all sides of the second stator 352 and the second impeller 353; Described second pump case 351, second stator 352 and the second impeller 353 three form a second water delivery mechanism, and described second water delivery mechanism is provided with multiple along the axis of pump shaft 20; Flow channels 342 on the impeller eye of chopped-off head second water delivery mechanism and middle suction casing 34 is connected, and the impeller outlet of final stage second water delivery mechanism is connected by the section of confluxing 36 and water exit end 37.
As shown in Figure 2, the water intake of described first impeller 333 and the second impeller 353 is oppositely arranged.This opposite disposed mode of impeller makes when submersible pump works, the axial force suffered by the first pump water section 33 make a concerted effort and axial force suffered by the second pump water section 35 point to the other side mutually with joint efforts.
Below in conjunction with accompanying drawing 1 ~ 4, working procedure of the present utility model is described further.
As shown in Figure 1, the pump shaft of submersible pump 30 is vertical setting, and pump shaft 20 lower end of submersible pump 30 is provided with motor 11.When submersible pump 30 is installed, only need to make the suction port 341 of middle suction casing 34 be placed in below liquid level.
During work, driven by motor pump shaft 20 rotates, water is sucked in the pump housing via suction port 341 by the first impeller 333 in the first pump water section 33, the water entering the first pump water section 33 is transported to discharge opening 321 place of Spit Section 32 from top to bottom through the pressurization of multiple first impeller 333, subsequently on through for water flow passage 334, flow channels 342 on middle suction casing 34, become a mandarin stator 345 and entering in the second pump water section 35.
The water entering the second pump water section 35 is transported to the section of confluxing 36 place through the pressurization of multiple second impeller 353 from bottom to top, subsequently on discharge through water exit end 37.
Meanwhile, cooling wheel 14 rotates and cold water to be delivered to motor 11 from bottom to top inner, is flowed out, thus achieve the cooling to motor 11 after cold water heat exchange by side opening on motor 11, ensure that motor 11 can the operation of lasting stability.
Claims (7)
1. the high-lift single suction self-balanced thrust Submerged Motor Pumps of middle water inlet, comprise submersible pump (30) and drive submersible pump pump shaft (20) drive end (10) that rotates, it is characterized in that: described submersible pump (30) comprises fixed cover from top to bottom and is located at water exit end (37) on pump shaft (20), the section of confluxing (36), the second pump water section (35), middle suction casing (34), the first pump water section (33), Spit Section (32) and pump machine connecting section (31);
Described middle suction casing (34) is provided with water sucking mouth (341), the water outlet of middle suction casing (34) is connected with the water intake of the first pump water section (33), the described water outlet of the first pump water section (33) and the water intake of Spit Section (32) are connected, and the water intake of runner in the first pump water section (33) and middle suction casing (34) of the discharge opening (321) of described Spit Section (32) and the second pump water section (35) is connected; The water outlet of described second pump water section (35) is connected by the section of confluxing (36) and water exit end (37);
Impeller set-up mode in described first pump water section (33) and the second pump water section (35) makes when submersible pump works, the axial force suffered by the first pump water section (33) make a concerted effort and axial force suffered by the second pump water section (35) point to the other side mutually with joint efforts;
The housing of described pump machine connecting section (31) is provided with easy access mouth (311), and described pump shaft (20) is provided with the output shaft (15) of drive end (10) coupling (312) the two being connected and being fixed together at described access hole (311) place.
2. the high-lift single suction self-balanced thrust Submerged Motor Pumps of middle water inlet according to claim 1, it is characterized in that: described first pump water section (33) comprises and is set in the first pump case (331) on pump shaft (20) and the first stator (332), the first impeller (333) arranged with the first stator (332) one_to_one corresponding is also provided with in first pump water section (33), first impeller (333) is sheathed to be fixed on pump shaft (20), described first stator (333) is arranged on the back side in the water delivery direction of corresponding the first impeller (333), described first pump case (331) is set in all sides of the first stator (332) and the first impeller (333), described first pump case (331), the first stator (332) and the first impeller (333) three form a first water delivery mechanism, and described first water delivery mechanism is provided with multiple along the axis of pump shaft (20), the impeller eye of chopped-off head first water delivery mechanism and the water outlet of middle suction casing (34) are connected, and the impeller outlet of final stage first water delivery mechanism and the discharge opening (321) of Spit Section (32) are connected,
Described second pump water section (35) comprises and is set in the second pump case (351) on pump shaft (20) and the second stator (352), the second impeller (353) arranged with the second stator (352) one_to_one corresponding is also provided with in second pump water section (35), second impeller (353) is sheathed to be fixed on pump shaft (20), described second stator (352) is arranged on the back side in the water delivery direction of corresponding the second impeller (353), and described second pump case (351) is set in all sides of the second stator (352) and the second impeller (353); Described second pump case (351), the second stator (352) and the second impeller (353) three form a second water delivery mechanism, and described second water delivery mechanism is provided with multiple along the axis of pump shaft (20); Flow channels (342) on the impeller eye of chopped-off head second water delivery mechanism and middle suction casing (34) is connected, and the impeller outlet of final stage second water delivery mechanism is connected by the section of confluxing (36) and water exit end (37);
The water intake of described first impeller (333) and the second impeller (353) is oppositely arranged.
3. the high-lift single suction self-balanced thrust Submerged Motor Pumps of middle water inlet according to claim 2, is characterized in that: described first pump case (331) is provided with the hole passed through for pull bar (38) and the confession water flow passage (334) passed through for fluid along the axis of pump shaft (20); Described second pump case (351) is provided with the hole passed through for pull bar (38) along the axis of pump shaft (20);
The described feed-water end of water flow passage (334) and the discharge opening (321) of Spit Section (32) of supplying is connected, and the waterexit end for water flow passage (334) is connected by the impeller eye of the flow channels (342) on described middle suction casing (34) with chopped-off head second water delivery mechanism.
4. the high-lift single suction self-balanced thrust Submerged Motor Pumps of water inlet in the middle of according to any one of claims 1 to 3, it is characterized in that: described drive end (10) is arranged on the downside of pump machine connecting section (31), described drive end (10) comprises motor (11), output shaft (15) and the pump shaft of described motor (11) are connected, and the bottom of described motor (11) is provided with thrust bearing part (13).
5. the high-lift single suction self-balanced thrust Submerged Motor Pumps of middle water inlet according to claim 4, it is characterized in that: described coupling (312) comprises the first sleeve (312a) and the second sleeve (312b), described first sleeve (312a) is set in the outside of described pump shaft (20) and the two end of described output shaft (15), described second sleeve (312b) is set in the outside of the first sleeve (312a), the cylindrical shell of described first sleeve (312a) and the second sleeve (312b) is provided with the multiple tapped through holes corresponded to each other from top to bottom, described pump shaft (20) and described output shaft (15) are respectively arranged with the retaining thread hole of matching with tapped through hole, bolt or screw pass the tapped through hole on the second sleeve (312b) and the first sleeve (312a) successively and screw in retaining thread hole and pump shaft (20) and output shaft (15) be fixedly connected.
6. the high-lift single suction self-balanced thrust Submerged Motor Pumps of middle water inlet according to claim 5, is characterized in that: the length of described first sleeve (312a) is greater than the length of the second sleeve (312b).
7. the high-lift single suction self-balanced thrust Submerged Motor Pumps of middle water inlet according to claim 4, is characterized in that: described drive end (10) is provided with in the downside of thrust bearing part (13) coaxial with described output shaft (15) and is connected in series the cooling wheel (14) arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420744013.5U CN204327523U (en) | 2014-12-01 | 2014-12-01 | The high-lift single suction self-balanced thrust Submerged Motor Pumps of water inlet in the middle of a kind of |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420744013.5U CN204327523U (en) | 2014-12-01 | 2014-12-01 | The high-lift single suction self-balanced thrust Submerged Motor Pumps of water inlet in the middle of a kind of |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327523U true CN204327523U (en) | 2015-05-13 |
Family
ID=53163890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420744013.5U Expired - Fee Related CN204327523U (en) | 2014-12-01 | 2014-12-01 | The high-lift single suction self-balanced thrust Submerged Motor Pumps of water inlet in the middle of a kind of |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327523U (en) |
-
2014
- 2014-12-01 CN CN201420744013.5U patent/CN204327523U/en not_active Expired - Fee Related
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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: 20150513 Termination date: 20171201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |