CN210371221U - Submerged self-balancing multistage pump - Google Patents
Submerged self-balancing multistage pump Download PDFInfo
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- CN210371221U CN210371221U CN201921439560.1U CN201921439560U CN210371221U CN 210371221 U CN210371221 U CN 210371221U CN 201921439560 U CN201921439560 U CN 201921439560U CN 210371221 U CN210371221 U CN 210371221U
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Abstract
The utility model relates to a multistage pump technical field under the liquid specifically discloses a self-balancing multistage pump under liquid, including the section of intaking, the middle section, go out the water section, secondary section of intaking, the pump shaft, positive impeller, positive stator, the anti-impeller, anti-stator and honeycomb duct, the pump shaft is connected with the motor and passes the section of intaking in proper order, the middle section, go out the water section, secondary section of intaking and secondary section of intaking, the delivery port that goes out the water section passes through the honeycomb duct and is connected with the water inlet of secondary section of intaking, positive impeller and positive stator are the multiunit and are located the middle section, anti-impeller and anti-stator are the multiunit and are located secondary middle section, positive impeller and positive stator and. The utility model discloses a symmetrical arrangement's impeller rotor part has reduced the volume loss because of the balanced mechanism produces, has improved the operating efficiency of pump, has improved the reliability of operation greatly, and the vulnerable part is few, and it is more convenient to install and maintain.
Description
Technical Field
The utility model relates to a multistage pump technical field under the liquid especially relates to a self-balancing multistage pump under liquid.
Background
The submerged multistage pump is widely suitable for clean, low-temperature or high-temperature, chemically neutral or corrosive liquid, and is particularly suitable for mediums such as condensate, liquefied gas, methane and the like. However, because the pressure difference between the inlet and the outlet of the multi-stage submerged pump is large, the bearing is difficult to bear the large axial force, and the prior art mostly adopts a balance drum or a balance disc structure to balance most of the axial force to solve the problem, but the mechanical loss and the volume loss of the submerged multi-stage pump are increased by using the structures. And along with the use of the pump, the phenomenon of abrasion can take place for balancing drum and balance disc, leads to the leakage rate increase of pump, and the efficiency takes place obvious decline. Therefore, it is necessary to develop a new type of submerged self-balancing multistage pump.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a self-balancing multistage pump under liquid to overcome the submerged multistage pump mechanical loss among the prior art and the volume loss great, let out the problem that the leakage quantity is great, inefficiency.
In order to solve the technical problem, the utility model provides a self-balancing multistage pump under liquid, including the section of intaking, middle section, play water section, secondary section of intaking, secondary middle section, secondary section of intaking, pump shaft, positive impeller, positive stator, anti-impeller, anti-stator and honeycomb duct, the pump shaft is connected with the motor and passes in proper order section of intaking, middle section, play water section, secondary section of intaking and secondary section of intaking, the delivery port of going out the water section passes through the honeycomb duct with the water inlet of secondary section of intaking is connected, positive impeller and positive stator are the multiunit and are located in the middle section, anti-impeller and anti-stator are the multiunit and are located in the secondary middle section, positive impeller and positive stator with anti-impeller and anti-stator symmetrical arrangement.
Preferably, the number of sets of positive impellers and positive guide vanes is the same as the number of sets of negative impellers and negative guide vanes.
Preferably, the water outlet of the secondary water outlet section is connected with a water outlet pipe.
Preferably, the pump shaft is sleeved with a bearing component.
The utility model discloses an impeller rotor part that submerged self-balancing multistage pump passes through symmetrical arrangement, each level offsets each other the produced axial force of impeller, thereby balanced mechanisms such as the balance drum or balance disk that prior art submerged multistage pump adopted have been cancelled, owing to cancelled balanced mechanism, the friction between the rotor has been reduced, the volume loss of producing because of balanced mechanism has also been reduced simultaneously, thereby the operating efficiency of pump has wholly been improved, the shaft power has been reduced, because the centering nature of impeller and stator is always in the optimum, the phenomenon of dying of the rotor production because of the friction has been reduced, the reliability of operation has been improved greatly, the vulnerable spare is few, it is more convenient to install and maintain.
Drawings
Fig. 1 is a sectional view of the submerged self-balancing multistage pump according to the embodiment of the present invention.
In the figure, 1: a water inlet section; 2: a middle section; 3: a positive guide vane; 4: a positive impeller; 5: a water outlet section; 6: a flow guide pipe; 7: a return guide vane; 8: a counter-impeller; 9: and a secondary water inlet section.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the submerged self-balancing multistage pump of the present embodiment includes: the section of intaking 1, middle section 2, play water section 5, the secondary section of intaking 9, secondary middle section, the secondary section of intaking, pump shaft, positive impeller 4, positive stator 3, counter-vane 8, counter-vane 7 and honeycomb duct 6, the pump body or the studio of pump includes promptly: the pump comprises a water inlet section 1, a middle section 2, a water outlet section 5, a secondary water inlet section 9, a secondary middle section, a secondary water outlet section and other pump body structures, wherein one end of a pump shaft is connected with the output shaft end of a motor through a coupler and sequentially penetrates through the water inlet section 1, the middle section 2, the water outlet section 5, the secondary water outlet section, the secondary middle section and the secondary water inlet section 9, namely as shown in figure 1, the water inlet section 1, the middle section 2, the water outlet section 5, the secondary water outlet section, the secondary middle section and the secondary water inlet section 9 are sequentially arranged from bottom to top, the middle section 2 is connected through high-strength penetrating bar bolt nuts, and a bearing component, a supporting component, a sealing component and the. The water outlet of the water outlet section 5 is connected with the water inlet of the secondary water inlet section 9 through the flow guide pipe 6, and the water outlet of the secondary water outlet section is connected with a water outlet pipe. The positive impeller 4 and the positive guide vane 3 are in multiple groups and are positioned in the middle section 2, the reverse impeller 8 and the reverse guide vane 7 are in multiple groups and are positioned in the secondary middle section, the positive impeller 4 and the positive guide vane 3 are symmetrically arranged with the reverse impeller 8 and the reverse guide vane 7, namely, the rotation directions are the same and the structural directions are the same, the effect of opposite axial acting force directions is generated, and the number of the groups of the positive impeller 4 and the positive guide vane 3 is the same as that of the groups of the reverse impeller 8 and the reverse guide vane 7.
The working principle of the submerged self-balancing multistage pump of the embodiment is as follows: the pumping medium enters the secondary water inlet section 9 through the water inlet section 1, the positive guide vane 3 and the positive impeller 4 act, then enters the secondary water inlet section 9 through the water outlet section 5 and the guide pipe 6, and flows out through the secondary water outlet section liquid outlet part (water outlet pipe) after acting through the counter guide vane 7 and the counter impeller 8, and because the positive guide vane 3 and the positive impeller 4 are symmetrically arranged with the counter guide vane 7 and the counter impeller 8, axial acting forces generated by symmetrical impellers at all levels are mutually offset, so that the axial force generated in operation is self-balanced, other balancing mechanisms are not needed, and the traditional structure of the submerged multistage pump is broken through.
The utility model discloses an impeller rotor part that submerged self-balancing multistage pump passes through symmetrical arrangement, each level offsets each other the produced axial force of impeller, thereby balanced mechanisms such as the balance drum or balance disk that prior art submerged multistage pump adopted have been cancelled, owing to cancelled balanced mechanism, the friction between the rotor has been reduced, the volume loss of producing because of balanced mechanism has also been reduced simultaneously, thereby the operating efficiency of pump has wholly been improved, the shaft power has been reduced, because the centering nature of impeller and stator is always in the optimum, the phenomenon of dying of the rotor production because of the friction has been reduced, the reliability of operation has been improved greatly, the vulnerable spare is few, it is more convenient to install and maintain.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (4)
1. The utility model provides a self-balancing multistage pump under liquid, its characterized in that, including the section of intaking, middle section, play water section, secondary section of intaking, pump shaft, positive impeller, positive stator, anti-impeller, turning back and honeycomb duct, the pump shaft is connected with the motor and passes in proper order intake section, middle section, play water section, secondary section of intaking and secondary section of intaking, the delivery port of the section of intaking passes through the honeycomb duct with the water inlet of secondary section of intaking is connected, positive impeller and positive stator are the multiunit and are located in the middle section, anti-impeller and turning back are the multiunit and are located in the secondary middle section, positive impeller and positive stator with anti-impeller and turning back symmetrical arrangement.
2. The submerged self-balancing multistage pump of claim 1, characterized in that the number of sets of positive impellers and positive guide vanes is the same as the number of sets of negative impellers and negative guide vanes.
3. The submerged self-balancing multistage pump according to claim 1, wherein the outlet of the secondary water outlet section is connected with a water outlet pipe.
4. The submerged self-balancing multistage pump according to claim 1, wherein the pump shaft is sleeved with a bearing component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921439560.1U CN210371221U (en) | 2019-09-02 | 2019-09-02 | Submerged self-balancing multistage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921439560.1U CN210371221U (en) | 2019-09-02 | 2019-09-02 | Submerged self-balancing multistage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210371221U true CN210371221U (en) | 2020-04-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921439560.1U Active CN210371221U (en) | 2019-09-02 | 2019-09-02 | Submerged self-balancing multistage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210371221U (en) |
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2019
- 2019-09-02 CN CN201921439560.1U patent/CN210371221U/en active Active
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