CN202673705U - Multistage submersible pump capable of operating stably and reliably - Google Patents
Multistage submersible pump capable of operating stably and reliably Download PDFInfo
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- CN202673705U CN202673705U CN 201220306992 CN201220306992U CN202673705U CN 202673705 U CN202673705 U CN 202673705U CN 201220306992 CN201220306992 CN 201220306992 CN 201220306992 U CN201220306992 U CN 201220306992U CN 202673705 U CN202673705 U CN 202673705U
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Abstract
The utility model belongs to the technical field of water pumps and in particular relates to a multistage submersible pump which can operate stably and reliably. The multistage submersible pump comprises a first working set section and a second working set section which are arranged on a pump shaft, wherein the water outlet of the first working set section is communicated with the water suction hole of the first working set section, and the water outlet of the second working set section is communicated with a water channel or drain pipe which is arranged on a motor; and a first impeller set is arranged in the first working set section, a second impeller set is arranged in the second working set section, and the setting manner of the first impeller set and the second impeller set causes that a resultant force of axial forces received by the first working set section and the resultant force of the axial forces received by the second working set section are pointed to each other when the submersible pump operates. According to the multistage submersible pump disclosed by the utility model, the structural manner is adopted, so that axial forces received by the pump shaft are mutually extruded, stress situation of the pump shaft is greatly improved, the service life of the pump shaft is prolonged, and the operation condition of the whole water pump is correspondingly improved.
Description
Technical field
The utility model belongs to the pump technology field, is specifically related to the reliable Multiple Sinking Pump of a kind of working stability.
Background technique
Traditional horizontal, MODEL VERTICAL MULTISTAGE PUMP be with several and even tens impeller serials on a pump shaft, increase along with progression, the axial force that acts on the pump shaft also becomes the geometrical progression amount to increase, simultaneously because there are defective in existing design concept and project organization, cause the pump shaft discontinuity, thereby so that the when operation vibration of existing multistage pump is large and be easy to break down, therefore demand urgently improving.
Summary of the invention
The purpose of this utility model provides the reliable Multiple Sinking Pump of a kind of working stability, and this Multiple Sinking Pump operates steadily, and is safe and reliable.
For achieving the above object, the technological scheme that the utility model adopts is: the reliable Multiple Sinking Pump of a kind of working stability, this submersible pump comprise with first working group's section of water sucking mouth and with the joining second working group's section of motor, described first working group's section and the second Duan Jun of working group are set on the pump shaft, and first working group's section and second working group's section are linked together mutually, the water outlet of first working group's section is connected with the water sucking mouth of second working group's section, on the water outlet of second working group's section and the motor cross water channel or waste pipe is connected; Be provided with the first impeller sets for pump water in first working group's section, be provided with the second impeller sets for pump water in second working group's section, the set-up mode of the first impeller sets and the second impeller sets so that when submersible pump is worked the making a concerted effort and the other side that makes a concerted effort to point to mutually of the axial force that second working group's section the is suffered of suffered axial force of first working group's section.
Simultaneously, the utility model can also be able to further realization by following technical measures:
Preferably, described first working group's section is from being made of thrust end seat, the first suction casing, changeover portion, the first Spit Section, the first pump water section and the first connecting section successively away from second working group's section, one laterally closer second working group's section, one side, the water sucking mouth of described first working group's section is arranged on the first suction casing, the water outlet of first working group's section is arranged on the first connecting section, and described the first impeller sets is made of a plurality of the first pump water impellers that are arranged on the suction impeller in the first suction casing and be arranged on the first pump water section; Described second working group's section is from being made of the second connecting section, the second pump water section and pump machine connecting section successively away from first working group's section, one side near first working group's section, one side direction, the water sucking mouth of described second working group's section is arranged on the second connecting section, the water outlet of second working group's section is arranged on the pump machine connecting section, and the second impeller sets is made of a plurality of the second pump water impellers that are arranged on the second pump water section; The water sucking mouth of the water outlet of described the first connecting section and the second connecting section is connected with each other logical, on the water outlet of described pump machine connecting section and the motor cross water channel or waste pipe is connected; One end of described pump shaft and thrust end seat are connected, and it is affixed that the other end passes the rotating shaft of the first suction casing, changeover portion, the first Spit Section, the first pump water section, the first connecting section, the second connecting section, the second pump water section and pump machine connecting section and motor successively.
Further, described the first pump water section also comprises the first housing and the first stator that is set on the pump shaft, described the first pump water impeller and the first stator are corresponding one by one, and the first stator is arranged on the first corresponding pump water impeller back side, and described the first housing is set in all sides of the first pump water impeller; Described the first housing, the first pump water impeller and the first stator three consist of a low-voltage transmission mechanism, and described low-voltage transmission mechanism is a plurality of along axially being provided with of pump shaft; Described the second pump water section also comprises the second housing and the second stator that is set on the pump shaft, described the second pump water impeller and the second stator are corresponding one by one, and the second stator is arranged on the second corresponding pump water impeller back side, and described the second housing is set in all sides of the second pump water impeller; Described the second housing, the second pump water impeller and the second stator three consist of a high-voltage transmission mechanism, and described high-voltage transmission mechanism is a plurality of along axially being provided with of pump shaft.
The first pump water impeller in suction impeller in described the first suction casing, the first pump water section, the second pump water impeller in the second pump water section all are set on the pump shaft, and all link to each other with pump shaft by flat key.
Preferably, described suction impeller is opposite toward each other with the water intake of the first pump water impeller, and the water intake of the first pump water impeller and the second pump water impeller is relative toward each other.
Further, the two total quantity of described suction impeller and the second pump water impeller equates with the quantity of the first pump water impeller.
Further, on described the first housing along the hole that axially being provided with of pump shaft passed through for pull bar and the runner that passes through for fluid, runner on described the first housing is divided into coming water flow passage and supplies water flow passage, wherein come the feed-water end of water flow passage to be connected with the discharge opening of the first Spit Section, come the waterexit end of water flow passage to be connected with the impeller eye of chopped-off head low-voltage transmission mechanism by the cavity that the first connecting section and the second connecting section are surrounded jointly; Feed-water end for water flow passage is connected with the exhaust port of final stage low-voltage transmission mechanism, supplies the waterexit end of water flow passage to be connected with the impeller eye of chopped-off head high-voltage transmission mechanism by the cavity that the first connecting section and the second connecting section are surrounded jointly; The madial wall of described the first housing and the first pump water impeller and the first stator are enclosed the low pressure pump water channel jointly, describedly come water flow passage, low pressure pump water channel and for the water flow passage complete low-pressure water delivery passage of formation that links to each other successively; Axially only be provided with the hole of passing through for pull bar along pump shaft on described the second housing, the madial wall of described the second housing and the second pump water impeller and the second stator are enclosed the high-pressure service pump water channel jointly, and the exhaust port of described final stage high-voltage transmission mechanism is connected with the feed-water end of pump machine coupling part.
Preferably, described thrust end seat is made of thrust bearing component and thrust shaft block, and thrust shaft block is located at the outside of thrust bearing component; The end that described pump shaft links to each other with thrust end seat wears and is fixed in the thrust bearing component.
As more preferred technological scheme of the present utility model, described pump shaft comprise the first pump shaft of being located in first working group's section, be located in the second pump shaft in second working group's section and be arranged on the first pump shaft and the second pump shaft between spline housing, described spline housing is arranged in the cavity that is jointly surrounded by the first connecting section and the second connecting section; An end end adjacent one another are of described the first pump shaft and the second pump shaft is provided with spline, and the end adjacent one another are of the first pump shaft and the second pump shaft all plugs in the spline housing.
Further, be provided with in described the first connecting section for the support ring seat that supports the second pump shaft.
The beneficial effects of the utility model are:
1), because the first impeller sets in the utility model and the set-up mode of the second impeller sets so that when submersible pump is worked suffered axial force and the suffered axial force of second working group's section of first working group's section point to mutually the other side, also be that pump shaft suffered axial force when pump working is mutual extruding shape, this mode of structure has greatly improved the force-bearing situation of pump shaft, thereby improved the working life of pump shaft, correspondingly also improved the operation conditions of whole water pump.
2), the two total quantity of suction impeller and the second pump water impeller in the utility model equates with the quantity of the first pump water impeller, and axial force suffered on the pump shaft is cancelled each other, thereby stationarity and reliability when further having guaranteed pump shaft work.
3), further, pump shaft in the utility model is made of the first pump shaft and the second pump shaft, thereby has shortened the length of pump shaft, has not only effectively reduced the amount of deflection of pump shaft, guarantee stationarity and reliability when pump shaft rotates, and be conducive to the manufacturing of pump shaft.
4), described the first pump shaft and the second pump shaft link together by spline housing, not only simplifies the structure, be easy to assembling, and reduced installation cost.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the force-bearing situation schematic representation of pump shaft.
The implication of mark is as follows among the figure:
1-pump machine connecting section the 2-the second pump water section the 3-the second connecting section
The 4-the first connecting section the 5-the first pump water section the 6-the first Spit Section
7-changeover portion the 8-the first suction casing, 9-thrust bearing component
10-thrust shaft block the 11-the first pump shaft the 12-the first pump water impeller
13-spline housing the 14-the second pump water impeller the 15-the second pump shaft
16-support ring seat the 17-the first keyhole the 18-the second keyhole
19-suction impeller the 21-the second housing the 22-the second stator
The 51-the first housing the 52-the first stator
Embodiment
As shown in Figure 1, the reliable Multiple Sinking Pump of a kind of working stability, this submersible pump comprise with first working group's section of water sucking mouth and with the joining second working group's section of motor, described first working group's section and the second Duan Jun of working group are set on the pump shaft, and first working group's section and second working group's section are linked together mutually, the water outlet of first working group's section is connected with the water sucking mouth of second working group's section, on the water outlet of second working group's section and the motor cross water channel or waste pipe is connected; Be provided with the first impeller sets for pump water in first working group's section, be provided with the second impeller sets for pump water in second working group's section, the set-up mode of the first impeller sets and the second impeller sets so that when submersible pump is worked the making a concerted effort and the other side that makes a concerted effort to point to mutually of the axial force that second working group's section the is suffered of suffered axial force of first working group's section.
Preferably, as shown in Figure 1, described first working group's section is from being made of thrust end seat, the first suction casing 8, changeover portion 7, the first Spit Section 6, the first pump water section 5 and the first connecting section 4 successively away from second working group's section, one laterally closer second working group's section, one side, the water sucking mouth of described first working group's section is arranged on the first suction casing 8, the water outlet of first working group's section is arranged on the first connecting section 4, and described the first impeller sets consists of by being arranged on the suction impeller 19 in the first suction casing 8 and a plurality of the first pump water impellers 12 that are arranged on the first pump water section 5; Described second working group's section is from being made of the second connecting section 3, the second pump water section 2 and pump machine connecting section 1 successively away from first working group's section, one side near first working group's section, one side direction, the water sucking mouth of described second working group's section is arranged on the second connecting section 3, the water outlet of second working group's section is arranged on the pump machine connecting section 1, and the second impeller sets is made of a plurality of the second pump water impellers 14 that are arranged on the second pump water section 2; The water sucking mouth of the water outlet of described the first connecting section 4 and the second connecting section 3 is connected with each other logical, on the water outlet of described pump machine connecting section 1 and the motor cross water channel or waste pipe is connected; One end of described pump shaft and thrust end seat are connected, and it is affixed with the rotating shaft of motor that the other end passes the first suction casing 8, changeover portion 7, the first Spit Section 6, the first pump water section 5, the first connecting section 4, the second connecting section 3, the second pump water section 2 and pump machine connecting section 1 successively.
Further, described the first pump water section 5 also comprises the first housing 51 and the first stator 52 that is set on the pump shaft, described the first pump water impeller 12 and the first stator 52 are corresponding one by one, and the first stator 52 is arranged on corresponding the first pump water impeller 12 back sides, and described the first housing 51 is set in all sides of the first pump water impeller 12; Described the first housing 51, the first pump water impeller 12 and the first stator 52 threes consist of a low-voltage transmission mechanism, and described low-voltage transmission mechanism is a plurality of along axially being provided with of pump shaft; Described the second pump water section 2 also comprises the second housing 21 and the second stator 22 that is set on the pump shaft, described the second pump water impeller 14 and the second stator 22 are corresponding one by one, and the second stator 22 is arranged on corresponding the second pump water impeller 14 back sides, and described the second housing 21 is set in all sides of the second pump water impeller 14; Described the second housing 21, the second pump water impeller 14 and the second stator 22 threes consist of a high-voltage transmission mechanism, and described high-voltage transmission mechanism is a plurality of along axially being provided with of pump shaft.
The first pump water impeller 12 in suction impeller 19 in described the first suction casing 8, the first pump water section 5, the second pump water impeller 14 in the second pump water section 2 all are set on the pump shaft, and all link to each other with pump shaft by flat key.
Preferably, described suction impeller 19 is opposite toward each other with the water intake of the first pump water impeller 12, and the water intake of the first pump water impeller 12 and the second pump water impeller 14 is relative toward each other.
Further, the two total quantity of described suction impeller 19 and the second pump water impeller 14 equates with the quantity of the first pump water impeller 12.
Further, on described the first housing 51 along the hole that axially being provided with of pump shaft passed through for pull bar and the runner that passes through for fluid, runner on described the first housing 51 is divided into coming water flow passage and supplies water flow passage, wherein come the feed-water end of water flow passage to be connected with the discharge opening of the first Spit Section 6, come the waterexit end of water flow passage to be connected with the impeller eye of chopped-off head low-voltage transmission mechanism by the first connecting section 4 and 3 cavitys that jointly surround of the second connecting section; Feed-water end for water flow passage is connected with the exhaust port of final stage low-voltage transmission mechanism, supplies the waterexit end of water flow passage to be connected with the impeller eye of chopped-off head high-voltage transmission mechanism by the first connecting section 4 and 3 cavitys that jointly surround of the second connecting section; The madial wall of described the first housing 51 and the first pump water impeller 12 and the first stator 52 are enclosed the low pressure pump water channel jointly, describedly come water flow passage, low pressure pump water channel and for the water flow passage complete low-pressure water delivery passage of formation that links to each other successively; Axially only be provided with the hole of passing through for pull bar along pump shaft on described the second housing 21, the madial wall of described the second housing 21 and the second pump water impeller 14 and the second stator 22 are enclosed the high-pressure service pump water channel jointly, and the exhaust port of described final stage high-voltage transmission mechanism is connected with the feed-water end of pump machine coupling part.
Preferably, described thrust end seat is made of thrust bearing component 9 and thrust shaft block 10, and thrust shaft block 10 is located at the outside of thrust bearing component 9; The end that described pump shaft links to each other with thrust end seat wears and is fixed in the thrust bearing component 9.
As more preferred technological scheme of the present utility model, described pump shaft comprise the first pump shaft 11 of being located in first working group's section, be located in the second pump shaft 15 in second working group's section and be arranged on the first pump shaft 11 and the second pump shaft 15 between spline housing 13, described spline housing 13 is arranged in the cavity that is jointly surrounded by the first connecting section 4 and the second connecting section 3; An end end adjacent one another are of described the first pump shaft 11 and the second pump shaft 15 is provided with spline, and the end adjacent one another are of the first pump shaft 11 and the second pump shaft 15 all plugs in the spline housing 13.
Further, be provided with in described the first connecting section 4 for the support ring seat 16 that supports the second pump shaft 15.
Be described further below in conjunction with accompanying drawing 1,2 pairs of working procedure of the present utility model.
As shown in Figure 1, end away from the second pump shaft 15 of the first pump shaft 11 wears and is fixed in the thrust bearing component 9, the other end of the first pump shaft 11 passes successively the first suction casing 8, changeover portion 7, the first Spit Section 6, the first pump water section 5 and links to each other with an end of the second pump shaft 15 with the first connecting section 4, and it is affixed with the rotating shaft of motor that the other end of the second pump shaft 15 then passes the second connecting section 3, the second pump water section 2 and pump machine connecting section 1 successively.An end end adjacent one another are of described the first pump shaft 11 and the second pump shaft 15 is provided with spline, and the end adjacent one another are of the first pump shaft 11 and the second pump shaft 15 all plugs in the spline housing 13, and described spline housing 13 is arranged in the cavity that is jointly surrounded by the first connecting section 4 and the second connecting section 3.
During work, the flow direction of current is referring to shown in the arrow among Fig. 1, current are entered by the water sucking mouth of the first suction casing 8, enter successively changeover portion 7 and the first Spit Section 6 after suction impeller 19 pressurizations in the first suction casing 8, and enter the water flow passage of coming that is arranged on the first housing 51 by the discharge opening of the first Spit Section 6, current are by coming water flow passage and enter in the cavity that is jointly surrounded by the first connecting section 4 and the second connecting section 3 on the first housing 51, and then entered the water intake of the first pump water impeller 12 in the first pump water section 5 by described cavity, current are through a plurality of each other water sucking mouths that enter again the second connecting section 3 after the first pump water impellers 12 of serial connection pressurize successively by being arranged on confession water flow passage on the first housing 51, current enter the water intake of the second pump water impeller 14 in the second pump water section 2 immediately, and by a plurality of each other the serial connection the second pump water impellers 14 again pressurize after by pump machine connecting section 1 enter be arranged in the motor the mistake water channel, thereby finish whole water delivery process.
As shown in Figure 1, described suction impeller 19 is set to one, the first pump water impeller 12 is set to three, the second pump water impeller 14 is set to two, suction impeller 19 is arranged on the first pump shaft by flat key, 12 flat keys by the first keyhole 17 places of the first pump water impeller are arranged on the first pump shaft 11, and the second pump water impeller 14 is arranged on the second pump shaft 15 by the flat key at the second keyhole 18 places.
The distribution of axial force on the first pump shaft 11 that three the first pump water impellers 12 produce when water delivery is respectively F as shown in Figure 2
1, F
2, F
3The axial force that described suction impeller 19 produces is F
1 /The distribution of axial force on the second pump shaft 15 that two the second pump water impellers 14 produce when water delivery is respectively F as shown in Figure 2
2 /, F
3 /Arrow among Fig. 2 represents the direction of each power, also is three F that the first pump water impeller 12 produces
1, F
2, F
3Resultant direction left, and suction impeller 19 and two F that the second pump water impeller 14 produces
1 /, F
2 /, F
3 /Resultant direction to the right.There is this moment following equation to set up: F
1+ F
2+ F
3+ F
1 /+ F
2 /+ F
3 /=0, also namely the resultant direction of 15 axial forces that are subject to separately of the first pump shaft 11 and the second pump shaft is relative, and namely the first pump shaft 11 and the second pump shaft 15 push mutually.
Claims (10)
1. reliable Multiple Sinking Pump of working stability, it is characterized in that: this submersible pump comprise with first working group's section of water sucking mouth and with the joining second working group's section of motor, described first working group's section and the second Duan Jun of working group are set on the pump shaft, and first working group's section and second working group's section are linked together mutually, the water outlet of first working group's section is connected with the water sucking mouth of second working group's section, on the water outlet of second working group's section and the motor cross water channel or waste pipe is connected; Be provided with the first impeller sets for pump water in first working group's section, be provided with the second impeller sets for pump water in second working group's section, the set-up mode of the first impeller sets and the second impeller sets so that when submersible pump is worked the making a concerted effort and the other side that makes a concerted effort to point to mutually of the axial force that second working group's section the is suffered of suffered axial force of first working group's section.
2. the reliable Multiple Sinking Pump of working stability according to claim 1, it is characterized in that: described first working group's section from away from second working group's section, one laterally closer second working group's section, one side successively by thrust end seat, the first suction casing (8), changeover portion (7), the first Spit Section (6), the first pump water section (5) and the first connecting section (4) consist of, the water sucking mouth of described first working group's section is arranged on the first suction casing (8), the water outlet of first working group's section is arranged on the first connecting section (4), and described the first impeller sets is made of a plurality of the first pump water impellers (12) that are arranged on the suction impeller (19) in the first suction casing (8) and be arranged on the first pump water section (5);
Described second working group's section is from being made of the second connecting section (3), the second pump water section (2) and pump machine connecting section (1) successively away from first working group's section, one side near first working group's section, one side direction, the water sucking mouth of described second working group's section is arranged on the second connecting section (3), the water outlet of second working group's section is arranged on the pump machine connecting section (1), and the second impeller sets is made of a plurality of the second pump water impellers (14) that are arranged on the second pump water section (2);
The water sucking mouth of the water outlet of described the first connecting section (4) and the second connecting section (3) is connected with each other logical, on the water outlet of described pump machine connecting section (1) and the motor cross water channel or waste pipe is connected;
One end of described pump shaft and thrust end seat are connected, and it is affixed with the rotating shaft of motor that the other end passes the first suction casing (8), changeover portion (7), the first Spit Section (6), the first pump water section (5), the first connecting section (4), the second connecting section (3), the second pump water section (2) and pump machine connecting section (1) successively.
3. the reliable Multiple Sinking Pump of working stability according to claim 2, it is characterized in that: described the first pump water section (5) also comprises the first housing (51) and the first stator (52) that is set on the pump shaft, described the first pump water impeller (12) and the first stator (52) are corresponding one by one, and the first stator (52) is arranged on first corresponding pump water impeller (12) back side, and described the first housing (51) is set in all sides of the first pump water impeller (12); Described the first housing (51), the first pump water impeller (12) and the first stator (52) three consist of a low-voltage transmission mechanism, and described low-voltage transmission mechanism is a plurality of along axially being provided with of pump shaft;
Described the second pump water section (2) also comprises the second housing (21) and the second stator (22) that is set on the pump shaft, described the second pump water impeller (14) and the second stator (22) are corresponding one by one, and the second stator (22) is arranged on second corresponding pump water impeller (14) back side, and described the second housing (21) is set in all sides of the second pump water impeller (14); Described the second housing (21), the second pump water impeller (14) and the second stator (22) three consist of a high-voltage transmission mechanism, and described high-voltage transmission mechanism is a plurality of along axially being provided with of pump shaft.
4. the reliable Multiple Sinking Pump of working stability according to claim 3, it is characterized in that: the first pump water impeller (12) in the suction impeller (19) in described the first suction casing (8), the first pump water section (5), the second pump water impeller (14) in the second pump water section (2) all are set on the pump shaft, and all link to each other with pump shaft by flat key.
5. the reliable Multiple Sinking Pump of working stability according to claim 4, it is characterized in that: described suction impeller (19) is opposite toward each other with the water intake of the first pump water impeller (12), and the first pump water impeller (12) is relative toward each other with the water intake of the second pump water impeller (14).
6. the reliable Multiple Sinking Pump of working stability according to claim 5 is characterized in that: the two total quantity of described suction impeller (19) and the second pump water impeller (14) equates with the quantity of the first pump water impeller (12).
7. the reliable Multiple Sinking Pump of working stability according to claim 5, it is characterized in that: described the first housing (51) is upper along the hole that axially being provided with of pump shaft passed through for pull bar and the runner that passes through for fluid, runner on described the first housing (51) is divided into coming water flow passage and supplies water flow passage, wherein come the feed-water end of water flow passage to be connected with the discharge opening of the first Spit Section (6), come the waterexit end of water flow passage to be connected with the impeller eye of chopped-off head low-voltage transmission mechanism by the cavity that the first connecting section (4) and the second connecting section (3) are surrounded jointly; Feed-water end for water flow passage is connected with the exhaust port of final stage low-voltage transmission mechanism, supplies the waterexit end of water flow passage to be connected with the impeller eye of chopped-off head high-voltage transmission mechanism by the cavity that the first connecting section (4) and the second connecting section (3) are surrounded jointly; The madial wall of described the first housing (51) and the first pump water impeller (12) and the first stator (52) are enclosed the low pressure pump water channel jointly, describedly come water flow passage, low pressure pump water channel and for the water flow passage complete low-pressure water delivery passage of formation that links to each other successively;
The upper axial hole of passing through for pull bar that only is provided with along pump shaft of described the second housing (21), the madial wall of described the second housing (21) and the second pump water impeller (14) and the second stator (22) are enclosed the high-pressure service pump water channel jointly, and the exhaust port of described final stage high-voltage transmission mechanism is connected with the feed-water end of pump machine coupling part.
8. the reliable Multiple Sinking Pump of each described working stability according to claim 2～7, it is characterized in that: described thrust end seat is made of thrust bearing component (9) and thrust shaft block (10), and thrust shaft block (10) is located at the outside of thrust bearing component (9); The end that described pump shaft links to each other with thrust end seat wears and is fixed in the thrust bearing component (9).
9. the reliable Multiple Sinking Pump of each described working stability according to claim 2～7, it is characterized in that: described pump shaft comprise the first pump shaft (11) of being located in first working group's section, be located in the second pump shaft (15) in second working group's section and be arranged on the first pump shaft (11) and the second pump shaft (15) between spline housing (13), described spline housing (13) is arranged in the cavity that is jointly surrounded by the first connecting section (4) and the second connecting section (3); An end end adjacent one another are of described the first pump shaft (11) and the second pump shaft (15) is provided with spline, and the end adjacent one another are of the first pump shaft (11) and the second pump shaft (15) all plugs in the spline housing (13).
10. the reliable Multiple Sinking Pump of working stability according to claim 9 is characterized in that: be provided with in described the first connecting section (4) for the support ring seat (16) that supports the second pump shaft (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220306992 CN202673705U (en) | 2012-06-28 | 2012-06-28 | Multistage submersible pump capable of operating stably and reliably |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220306992 CN202673705U (en) | 2012-06-28 | 2012-06-28 | Multistage submersible pump capable of operating stably and reliably |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673705U true CN202673705U (en) | 2013-01-16 |
Family
ID=47494612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220306992 Expired - Fee Related CN202673705U (en) | 2012-06-28 | 2012-06-28 | Multistage submersible pump capable of operating stably and reliably |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734180A (en) * | 2012-06-28 | 2012-10-17 | 合肥恒大江海泵业股份有限公司 | Multistage submersible pump working stably and reliably |
-
2012
- 2012-06-28 CN CN 201220306992 patent/CN202673705U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734180A (en) * | 2012-06-28 | 2012-10-17 | 合肥恒大江海泵业股份有限公司 | Multistage submersible pump working stably and reliably |
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