CN204327504U - Water inlet single suction submersible pump in the middle of a kind of - Google Patents
Water inlet single suction submersible pump in the middle of a kind of Download PDFInfo
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- CN204327504U CN204327504U CN201420716555.1U CN201420716555U CN204327504U CN 204327504 U CN204327504 U CN 204327504U CN 201420716555 U CN201420716555 U CN 201420716555U CN 204327504 U CN204327504 U CN 204327504U
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Abstract
The utility model relates to a kind of middle water inlet single suction submersible pump.This 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 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 a kind of middle water inlet single suction submersible pump.
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, and provide a kind of middle water inlet single suction submersible pump, 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:
In the middle of a kind of, water inlet single suction submersible pump, comprises pump shaft, and this 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.
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, the upside of described middle suction casing is provided with the first stepped counterbore, the stator that becomes a mandarin be set on pump shaft is installed with in described first stepped counterbore, flow channels on the water intake of the described stator that becomes a mandarin and middle suction casing is connected, and the water outlet of the stator that becomes a mandarin and the impeller eye of chopped-off head second water delivery mechanism are connected; The downside of described middle suction casing is provided with the second-order scalariform counterbore for holding fixing chopped-off head first water delivery mechanism.
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), the utility model is respectively arranged with the first stepped counterbore and second-order scalariform counterbore in the both sides up and down of middle suction casing, is mounted with the stator that becomes a mandarin, is installed with chopped-off head first water delivery mechanism in second-order scalariform counterbore in described first stepped counterbore.This mode of structure with upper lower counterbore not only reduces the installation difficulty of pump, and makes the stressing conditions of both sides up and down of middle suction casing better, ensure that stationarity and the reliability of submersible pump work.
Accompanying drawing explanation
Fig. 1 is the structural representation of submersible pump.
Fig. 2 is the structural representation of middle suction casing.
The implication of the reference character in figure is as follows:
20-pump shaft, 30-submersible pump, 31-pump machine connecting section
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, 2, this submersible pump comprises pump shaft 20, and this submersible pump 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 Figure 1, 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 1, 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 1, 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 1, 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.
As shown in Figure 1, 2, the upside of described middle suction casing 34 is provided with the first stepped counterbore 343, the stator 345 that becomes a mandarin be set on pump shaft 20 is installed with in described first stepped counterbore 343, flow channels 342 on the water intake of the described stator 345 that becomes a mandarin and middle suction casing 34 is connected, and the water outlet of the stator 345 that becomes a mandarin and the impeller eye of chopped-off head second water delivery mechanism are connected; The downside of described middle suction casing 34 is provided with the second-order scalariform counterbore 344 for holding fixing chopped-off head first water delivery mechanism.
Below in conjunction with accompanying drawing 1,2, 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 (not shown in figure 1).When this submersible pump 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.
Claims (4)
1. a middle water inlet single suction submersible pump, comprise pump shaft (20), it is characterized in that: this submersible pump 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.
2. middle water inlet single suction submersible pump 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. middle water inlet single suction submersible pump 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. water inlet single suction submersible pump in the middle of according to Claims 2 or 3, it is characterized in that: the upside of described middle suction casing (34) is provided with the first stepped counterbore (343), the stator that becomes a mandarin (345) be set on pump shaft (20) is installed with in described first stepped counterbore (343), flow channels (342) on the water intake of the described stator that becomes a mandarin (345) and middle suction casing (34) is connected, and the water outlet of the stator that becomes a mandarin (345) and the impeller eye of chopped-off head second water delivery mechanism are connected; The downside of described middle suction casing (34) is provided with the second-order scalariform counterbore (344) for holding fixing chopped-off head first water delivery mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716555.1U CN204327504U (en) | 2014-11-24 | 2014-11-24 | Water inlet single suction submersible pump in the middle of a kind of |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716555.1U CN204327504U (en) | 2014-11-24 | 2014-11-24 | Water inlet single suction submersible pump in the middle of a kind of |
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| Publication Number | Publication Date |
|---|---|
| CN204327504U true CN204327504U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420716555.1U Active CN204327504U (en) | 2014-11-24 | 2014-11-24 | Water inlet single suction submersible pump in the middle of a kind of |
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| CN (1) | CN204327504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825509A (en) * | 2018-08-22 | 2018-11-16 | 上海上涵自动化科技有限公司 | A kind of peak regulation energy-saving pump |
-
2014
- 2014-11-24 CN CN201420716555.1U patent/CN204327504U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825509A (en) * | 2018-08-22 | 2018-11-16 | 上海上涵自动化科技有限公司 | A kind of peak regulation energy-saving pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |