CN101782074A - Single downdraft electric driving pump structure capable of automatically balancing axial force - Google Patents
Single downdraft electric driving pump structure capable of automatically balancing axial force Download PDFInfo
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- CN101782074A CN101782074A CN201010103990A CN201010103990A CN101782074A CN 101782074 A CN101782074 A CN 101782074A CN 201010103990 A CN201010103990 A CN 201010103990A CN 201010103990 A CN201010103990 A CN 201010103990A CN 101782074 A CN101782074 A CN 101782074A
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Abstract
The invention discloses a single downdraft electric driving pump structure capable of automatically balancing an axial force, which comprises a motor, impellers, a pump body water inlet and a water outlet, wherein the water inlet is formed at the lower end of a pump body, has a downdraft structure and comprises a water intake section, a middle water distribution section and an upper discharge section from bottom to top; the motor is arranged at the position of the water intake section; the impellers are arranged in the middle water distribution section which consists of a multi-stage pump; forward guide vanes are arranged in a lower-stage pump body; backward guide vanes are arranged in an upper-stage pump body; and the forward guide vanes and the backward guide vanes have opposite rotating directions and symmetrical structures. The single downdraft electric driving pump structure capable of automatically balancing the axial force adopts the structure with one-way water intake and oppositely arranged impellers and also adopts a mode of symmetrically arranging the forward guide vanes and the backward guide vanes so as to completely eliminate the coaxial force; and a difference between forward and backward rotation stages of the forward guide vanes and the backward guide vanes can be one stage so as to control the direction of the coaxial force, make the motor run in an optimal functional mode, and greatly prolong the service life of the electric pump.
Description
Technical field
The present invention relates to a kind of single downdraft electric driving pump structure capable of automatically balancing axial force.
Background technique
In Coal Production, discharge electric is very important equipment, and the electric weight that it is consumed in Coal Production generally accounts for 10～30% of mine total electricity consumption.Therefore, improve mine drainage work and realize economical operation, improve the usefulness of drainage system from every side, not only help the safety in production of mine, and be important measures of using electricity wisely.
Consider the sudden height of mine drainage, the particularity that flow is big, water pump operation produces huge end thrust will be delivered to rotor.The high more axial force of the big more lift of flow is big more.With per hour 300 tons of flows, 500 meters calculating of lift, about the nearly 7000kg of its end thrust, conventional structure can not bear its end thrust.
Therefore the design of water pump structure will be coordinated the relation between flow, lift and the axial force simultaneously, to improve service life of equipment.
Summary of the invention
The technical issues that need to address of the present invention just are to overcome the defective of prior art, a kind of single downdraft electric driving pump structure capable of automatically balancing axial force is provided, it adopts unidirectional water inlet, impeller to interposed structure, and adopt guide vane and return guide vane to the dress pattern, all eliminated axial force, the clockwise and anticlockwise progression of guide vane and return guide vane can differ one-level, with the direction of control axial force, make the motor operation be in optimum Working, increased the working life of electric pump greatly.
For addressing the above problem, the present invention adopts following technological scheme:
A kind of single downdraft electric driving pump structure capable of automatically balancing axial force of the present invention, comprise the pump housing and motor, impeller and pump housing water intake and water outlet, the whole pump housing is provided with the constant voltage cover, it is the lower suction type structure that described water intake is arranged at pump housing lower end, comprise inlet segment, intermediate section water section and upper water-out section from bottom to top, described motor is installed on the inlet segment position; Described impeller is installed in the intermediate section water section, and described intermediate section water section is made of multistage pump, is provided with guide vane in subordinate's pump housing, is provided with return guide vane in higher level's pump housing, described guide vane and return guide vane switched in opposite, symmetrical configuration.
Water intake is provided with filter screen.
Described inlet segment is provided with air guide sleeve.
Described impeller is provided with seal ring.
Be provided with water shutoff mill cover in the described intermediate section water section, the outer mill cover that is set with of described water shutoff mill cover.
Described upper water-out section is provided with check valve.
The present invention can be multistage vertical or horizontal type structure, adopt unidirectional water inlet, impeller to interposed structure, and adopt guide vane and return guide vane to the dress pattern, all eliminated axial force, the clockwise and anticlockwise progression of guide vane and return guide vane can differ one-level, with the direction of control axial force, make the motor operation be in optimum Working, increased the working life of electric pump greatly.The whole pump housing is provided with the constant voltage cover, presses outer purpose of holding in reaching.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an intermediate section water segment structure schematic representation of the present invention.
Embodiment
As shown in Figure 1, a kind of single downdraft electric driving pump structure capable of automatically balancing axial force of the present invention, comprise the pump housing and motor 1, impeller 2 and pump housing water intake 3 and water outlet 4, the whole pump housing is provided with constant voltage cover 19, it is the lower suction type structure that described water intake is arranged at pump housing lower end, comprise inlet segment 5, intermediate section water section 6 and upper water-out section 7 from bottom to top, described motor is installed on the inlet segment position; Motor is connected with outgoing cable 8, described impeller is installed in the intermediate section water section, and described intermediate section water section is made of multistage pump, is provided with guide vane 10 in subordinate's pump housing 9, be provided with return guide vane 12 in higher level's pump housing 11, described guide vane and return guide vane switched in opposite, symmetrical configuration.
Water intake is provided with filter screen 13.
Described inlet segment is provided with air guide sleeve 14.
Described impeller is provided with seal ring 15.
Be provided with water shutoff mill cover 16 in the described intermediate section water section, the outer mill cover 17 that is set with of described water shutoff mill cover.
Described upper water-out section is provided with check valve 18.
The present invention can be multistage vertical or horizontal type structure, adopt unidirectional water inlet, impeller to interposed structure, and adopt guide vane and return guide vane to the dress pattern, all eliminated axial force, the clockwise and anticlockwise progression of guide vane and return guide vane can differ one-level, with the direction of control axial force, make the motor operation be in optimum Working, increased the working life of electric pump greatly.The whole pump housing is provided with the constant voltage cover, presses outer purpose of holding in reaching.
It should be noted that at last: obviously, the foregoing description only is for example of the present invention clearly is described, and is not the qualification to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation of being extended out thus or change still are among protection scope of the present invention.
Claims (6)
1. single downdraft electric driving pump structure capable of automatically balancing axial force, comprise the pump housing and motor, impeller and pump housing water intake and water outlet, it is characterized in that: the whole pump housing is provided with the constant voltage cover, it is the lower suction type structure that described water intake is arranged at pump housing lower end, comprise inlet segment, intermediate section water section and upper water-out section from bottom to top, described motor is installed on the inlet segment position; Described impeller is installed in the intermediate section water section, and described intermediate section water section is made of multistage pump, is provided with guide vane in subordinate's pump housing, is provided with return guide vane in higher level's pump housing, described guide vane and return guide vane switched in opposite, symmetrical configuration.
2. single downdraft electric driving pump structure capable of automatically balancing axial force as claimed in claim 1, it is characterized in that: water intake is provided with filter screen.
3. single downdraft electric driving pump structure capable of automatically balancing axial force as claimed in claim 1 is characterized in that: described inlet segment is provided with air guide sleeve.
4. single downdraft electric driving pump structure capable of automatically balancing axial force as claimed in claim 1 is characterized in that: described impeller is provided with seal ring.
5. single downdraft electric driving pump structure capable of automatically balancing axial force as claimed in claim 1 is characterized in that: be provided with water shutoff mill cover in the described intermediate section water section, the outer mill cover that is set with of described water shutoff mill cover.
6. single downdraft electric driving pump structure capable of automatically balancing axial force as claimed in claim 1 is characterized in that: described upper water-out section is provided with check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103990A CN101782074A (en) | 2010-02-02 | 2010-02-02 | Single downdraft electric driving pump structure capable of automatically balancing axial force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103990A CN101782074A (en) | 2010-02-02 | 2010-02-02 | Single downdraft electric driving pump structure capable of automatically balancing axial force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101782074A true CN101782074A (en) | 2010-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010103990A Pending CN101782074A (en) | 2010-02-02 | 2010-02-02 | Single downdraft electric driving pump structure capable of automatically balancing axial force |
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Cited By (4)
| 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 |
| CN102734173A (en) * | 2012-06-28 | 2012-10-17 | 合肥恒大江海泵业股份有限公司 | High-lift and interstage leakage-free multi-level submersible pump |
| CN102852826A (en) * | 2012-09-17 | 2013-01-02 | 山东德源泵业有限公司 | Large water flow self-balancing submersible electric pump |
| CN113803269A (en) * | 2021-08-12 | 2021-12-17 | 长沙矿冶研究院有限责任公司 | Deep sea mining lifting electric pump |
-
2010
- 2010-02-02 CN CN201010103990A patent/CN101782074A/en active Pending
Cited By (4)
| 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 |
| CN102734173A (en) * | 2012-06-28 | 2012-10-17 | 合肥恒大江海泵业股份有限公司 | High-lift and interstage leakage-free multi-level submersible pump |
| CN102852826A (en) * | 2012-09-17 | 2013-01-02 | 山东德源泵业有限公司 | Large water flow self-balancing submersible electric pump |
| CN113803269A (en) * | 2021-08-12 | 2021-12-17 | 长沙矿冶研究院有限责任公司 | Deep sea mining lifting electric pump |
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Application publication date: 20100721 |