CN107762890A - A kind of high-lift high-power Diving Pump with Draining Sands with Anti-explosion of high speed - Google Patents
A kind of high-lift high-power Diving Pump with Draining Sands with Anti-explosion of high speed Download PDFInfo
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- CN107762890A CN107762890A CN201710984108.2A CN201710984108A CN107762890A CN 107762890 A CN107762890 A CN 107762890A CN 201710984108 A CN201710984108 A CN 201710984108A CN 107762890 A CN107762890 A CN 107762890A
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Abstract
The present invention is a kind of high-lift high-power Diving Pump with Draining Sands with Anti-explosion of small in volume, higher impeller single-stage lift is realized using bipolar machine, the method heeling pump axial force being arranged symmetrically using impeller is so as to eliminating the balancing drum being easily damaged, leakage is reduced using step labyrinth at all stator and rotor radial seals, the rigidity of rotor is improved using bearings at upper, middle and lower three, the modes such as bearing life are improved using thin oil lubricant and solve the deficiency of current mine explosion-suppression sand discharging pump, improve reliability；It is simultaneously of the invention compared with the mine explosion-suppression sand discharging pump of same specification, there is the characteristics of small volume, in light weight, vertical setting height(from bottom) is not higher than 3 meters, and the carrying and installation in mine laneway are all more convenient.
Description
Technical field
The present invention is a kind of high-lift high-power Diving Pump with Draining Sands with Anti-explosion of small in volume, belongs to universal machine
Product manufacturing technical field.
Background technology
Mine explosion-suppression sand discharging pump is the immersible pump of the dispatch silt sewage in the plash under coal mine.China's coal-mine is opened
The amount of adopting is big, and pit mining is horizontal constantly to be deepened, and exploitation hydrogeologic condition becomes to become increasingly complex, different coal Exploitation Depth
Diversity is presented to the demand of pump in colliery, increasing with the demand of explosion-proof diving electric pump to high-lift high-power multistage mine.
It is existing but China also lacks the high-power Diving Pump with Draining Sands with Anti-explosion in the routine work face of high-lift high reliability at present
For flame proof sand-discharging submerged pump after lift is more than 400 meters, the reliability decrease of pump is obvious, and existing subject matter includes balancing axial
Balancing drum Rapid Damage, the bearing life of power be short, burn-down of electric motor caused by motor water under high pressure leakage and water pump it is all it is fixed,
The problems such as lift caused by easy to wear at rotor radial seal, easy leakage reduces rapidly, and with the raising of electric pump lift, power
Increase, volume, the weight of pump also increase, and are difficult to carry and install under the limited coal mine in space.Asked to solve these
Topic, the present invention arise at the historic moment.
The content of the invention
It is high the invention provides a kind of high speed of small in volume in order to solve the deficiency of current mine explosion-suppression sand discharging pump
The high-power Diving Pump with Draining Sands with Anti-explosion of lift, higher impeller single-stage lift is realized using bipolar machine, using impeller pair
Claim the method heeling pump axial force of arrangement so as to eliminate the balancing drum being easily damaged, in all stator and rotor radial seals
Place reduces leakage using step labyrinth, the rigidity of rotor is improved using bearings at upper, middle and lower three, using thin oil
Lubrication improves the modes such as bearing life and solves the deficiency of current mine explosion-suppression sand discharging pump.
The technical solution adopted for the present invention to solve the technical problems is：
Pump is coaxial with motor, and motor is upper, and under, motor is dry type, bipolar machine and is built-in type pump, electronic
Acc power 200kw~400kw and motor flame proof, impeller single-stage lift is higher than 125 meters, 4 grades~8 grades of impeller progression, Ke Yili
Sleeping dual-purpose and vertical setting height(from bottom) is less than 3 meters.Because using bipolar machine, rotating ratio is higher, so whole electric pump small volume, again
Amount is light, ensure that the vertical setting height(from bottom) of the mining sand discharging pump within 800 meters of lifts is not higher than 3 meters, makes it in mine laneway
Carrying and installation it is all more convenient.
All impellers of pump are divided into two groups up and down, and the import of one group of impeller is downward, and the import of another group of impeller is upward, two groups
Impeller closely, is arranged symmetrically uses step labyrinth with balancing axial thrust, impeller inlet choma in opposite directions back-to-back
To reduce the leakage loss at impeller inlet choma, the axial leakage of all wheel hubs is also reduced using step labyrinth
Leakage loss.Because two groups of impellers are arranged symmetrically back-to-back, so axial force is with regard in a basic balance as caused by impeller, so as to take
Disappeared the balancing drum being easily damaged.And step labyrinth has the function that to be depressured stepwise so as to reduce leakage, than no rank
The column sealed ring in terraced labyrinth has better seal effect, so as to reduce leakage loss, improve pump efficiency.
Electric pump rotor has installation rolling bearing at upper, middle and lower three, and a radial ball bearing of electric pump rotor top is using oil
Grease lubrication, the base bearing among electric pump use thin oil lubricant, and the grease chamber both ends of electric pump base bearing are using mechanical seal composition sealing
Grease chamber, electric pump rotor bottom also has a radial ball bearing, and sets independent grease chamber to carry out thin oil lubricant for the bearing.Due to adopting
With bearings at three, the rigidity of rotor is substantially increased, makes electric pump not only can be and electric with horizontal use with vertical use
The radial ball bearing of base bearing and electric pump rotor bottom among pump all uses thin oil lubricant, therefore substantially increases the bearing longevity
Life.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the main sectional view of the present invention；In figure, 1. filter screen bases, 2. lower bearing grease chambers, 3. rolling bearings, 4. machineries
Sealing, 5. times support bases, 6. first-level guide blades, 7. first stage impellers, 8. sencond stage impellers, 9. two level stators, 10 three-level impellers, 11. ends
Level impeller, 12. Pyatyi stators, 13. Pyatyi impellers, 14. level Four stators, 15. level Four impellers, the staged labyrinth of 16. combinations are close
Envelope, 17. mechanical seals, 18. combination bearings, 19. mechanical seals, 20. rotors, 21. motor stators, 22. motor cases,
23. water pump outer barrel, 24. rolling bearings, the step labyrinth of 25. combinations, 26. times pump covers, the staged labyrinth of 27. combinations
Sealing, the step labyrinth of 28. combinations, the step labyrinth of 29. combinations, 30. lower pump bodies, the ladder of 31. combinations
Formula labyrinth seal, the step labyrinths of 32. combinations, 33. times water conservancy diversion pump housings, 34. flow distribution plates, the water conservancy diversion pump housing on 35., 36.
The step labyrinth of combination, the step labyrinths of 37. combinations, 38. upper pump casings, the pump housing is pushed up on 39., 40. combinations
Step labyrinth, 41. connecting seats, the step labyrinth of 42. combinations, the step labyrinth of 43. combinations, 44.
Middle (center) bearing grease chamber.
Embodiment
Parts are mounted together according to shown in Fig. 1：1. filter screen base, 2. lower bearing grease chambers, 3. rolling bearings, 4. machines
Tool seals, 5. times support bases, 6. first-level guide blades, 7. first stage impellers, 8. sencond stage impellers, 9. two level stators, 10 three-level impellers, and 11.
Impeller, 12. Pyatyi stators, 13. Pyatyi impellers, 14. level Four stators, 15. level Four impellers, the staged labyrinth of 16. combinations
Sealing, 17. mechanical seals, 18. combination bearings, 19. mechanical seals, 20. rotors, 21. motor stators, 22. motor cases,
23. water pump outer barrel, 24. rolling bearings, the step labyrinth of 25. combinations, 26. times pump covers, the staged labyrinth of 27. combinations
Sealing, the step labyrinth of 28. combinations, the step labyrinth of 29. combinations, 30. lower pump bodies, the ladder of 31. combinations
Formula labyrinth seal, the step labyrinths of 32. combinations, 33. times water conservancy diversion pump housings, 34. flow distribution plates, the water conservancy diversion pump housing on 35., 36.
The step labyrinth of combination, the step labyrinths of 37. combinations, 38. upper pump casings, the pump housing is pushed up on 39., 40. combinations
Step labyrinth, 41. connecting seats, the step labyrinth of 42. combinations, the step labyrinth of 43. combinations, 44.
Middle (center) bearing grease chamber.During work, silt sewage enters first stage impeller 7 from filter screen base 1, lower support base 5, successively by head after pressurization
Level stator 6, sencond stage impeller 7, two level stator 9, three-level impeller 10 pressurize, then by the lower water conservancy diversion pump housing 33, up pass through connecting seat
41, pressurizeed from above into level Four impeller 15, level Four stator 14, Pyatyi impeller 13, Pyatyi stator 12, impeller 11,
Turn to up finally by the upper water conservancy diversion pump housing 35, then discharged by connecting seat 41, water pump outer barrel 23.The present invention is using the two poles of the earth electricity
Machine, rotating ratio is higher, so whole electric pump small volume, in light weight, ensure that the vertical of mining sand discharging pump within 800 meters of lifts
Setting height(from bottom) is not higher than 3 meters, makes its carrying and installation in mine laneway all more convenient.
One group impeller of first stage impeller 7, sencond stage impeller 8 and the three-level impeller 10 of the present invention for impeller inlet downwards, level Four
Impeller 15, Pyatyi impeller 13 and impeller 11 are another group of upward impeller of impeller inlet, during operation, the axial direction of one group of impeller
Power is downward, and the axial force of another group of impeller is upward, and the axial force of both direction is equal in magnitude, in the opposite direction, makes a concerted effort to be zero, significantly
Axial thrust during pump operation is reduced, therefore eliminates original balancing drum being easily damaged, extends the longevity of unit operation
Life.
Two groups of impellers are arranged symmetrically back-to-back, there is flow distribution plate 34, flow distribution plate between three-level impeller 10 and impeller 11
There is very big pressure differential at 34 both ends, because the pressure behind the back shroud of impeller 11 is as caused by the lift of 6 impellers,
And the pressure behind the back shroud of three-level impeller 10 is the pressure of both 3 impellers of differing pressure as caused by the lift of 3 impellers
Power, therefore the gap between rotary shaft and flow distribution plate has very big leakage, the present invention is close using the staged labyrinth of combination
Envelope 32 leaks to reduce.The step labyrinth 32 of combination and the step labyrinth 16 of combination, the staged fan of combination
Palace sealing 25, the step labyrinth 27 of combination, the step labyrinth 28 of combination, the step labyrinth of combination
29th, step labyrinth 37, the combination of the step labyrinth 31 of combination, the step labyrinth 36 of combination, combination
Step labyrinth 40, combination step labyrinth 42 and combination step labyrinth 43 in sub-assembly quantity
With it is different in size but identical in principle, be all step labyrinth, using between stator and rotor gap neglect it is big
Suddenly it is small, the leakage current of high speed is diminished suddenly to lose velocity energy, so as to reach reduction pressure differential, reduce leakage loss
Purpose.
There is bearing at three to be supported rotor in the present invention, a rolling bearing 24 of rotor top, one group of middle part
One rolling bearing 3 of combination bearing 18 and rotor bottom, so as to substantially increase the rigidity of rotor part, makes electric pump not only may be used
Can be with horizontal use with vertical use.One group of middle part combination bearing 18 is the base bearing of the present invention, and what is first had is high-power mining
The middle part base bearing of flame proof sand-discharging submerged pump all uses grease lubrication, and its bearing life is all shorter, middle part base bearing of the invention
Using thin oil lubricant, greatly improve bearing life, the both ends of middle (center) bearing grease chamber 44 use mechanical seal 17 and mechanical seal 19
Sealing, ensure good cooling and the lubrication of base bearing.One rolling bearing 3 of rotor bottom, lower bearing oil also it has been separately provided
Room 2 carries out thin oil lubricant, and the silt sewage of lower bearing grease chamber 2 and unit fixed on water pump suction is separated using mechanical seal 4, so that
The life-span of rolling bearing 3 also greatly improves.
Rotor 20, motor stator 21 and motor case 22 constitute the dry type motor of flame proof.By the He of motor case 22
Whole motor is wrapped in the inside by the water passage that water pump outer barrel 23 forms, therefore the present invention is a kind of built-in submerged motor pump,
Water of crossing in water passage can be to the powerful cooling of motor, heat caused by the water cooling pumped with itself itself work,
Make the temperature rise of motor reduce, so as to improve motor life.
Claims (3)
1. a kind of high-lift high-power Diving Pump with Draining Sands with Anti-explosion of high speed, pump is coaxial with motor, and upper, pump exists motor
Under, motor is dry type, bipolar machine and is built-in type, motor power (output) 200kw~400kw and motor flame proof, its feature
It is：Impeller single-stage lift is higher than 125 meters, 4 grades~8 grades of impeller progression, can be less than 3 meters with horizontal-vertical double-purpose and vertical setting height(from bottom).
2. the high-lift high-power Diving Pump with Draining Sands with Anti-explosion of a kind of high speed according to claim 1, it is characterized in that：Pump
All impellers are divided into two groups up and down, and the import of one group of impeller is downward, and the import of another group of impeller is upward, and two groups of impellers are tight back-to-back
Get together, be arranged symmetrically entered with balancing axial thrust, impeller inlet choma using step labyrinth to reduce impeller in opposite directions
Leakage loss at mouth choma, the axial leakage of all wheel hubs also reduce leakage loss using step labyrinth.
3. the high-lift high-power Diving Pump with Draining Sands with Anti-explosion of a kind of high speed according to claim 1, it is characterized in that：Electric pump
Rotor has installation rolling bearing, a radial ball bearing of electric pump rotor top at upper, middle and lower three to use grease lubrication, electric pump
Middle base bearing uses thin oil lubricant, and the grease chamber both ends of electric pump base bearing are turned using mechanical seal composition sealing grease chamber, electric pump
Sub- bottom has been separately provided a radial ball bearing, and sets independent oil pocket to carry out thin oil lubricant for the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710984108.2A CN107762890A (en) | 2017-10-16 | 2017-10-16 | A kind of high-lift high-power Diving Pump with Draining Sands with Anti-explosion of high speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710984108.2A CN107762890A (en) | 2017-10-16 | 2017-10-16 | A kind of high-lift high-power Diving Pump with Draining Sands with Anti-explosion of high speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107762890A true CN107762890A (en) | 2018-03-06 |
Family
ID=61269079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710984108.2A Pending CN107762890A (en) | 2017-10-16 | 2017-10-16 | A kind of high-lift high-power Diving Pump with Draining Sands with Anti-explosion of high speed |
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| CN (1) | CN107762890A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11415143B2 (en) | 2019-02-18 | 2022-08-16 | Sulzer Management Ag | Process fluid lubricated pump and seawater injection system |
-
2017
- 2017-10-16 CN CN201710984108.2A patent/CN107762890A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11415143B2 (en) | 2019-02-18 | 2022-08-16 | Sulzer Management Ag | Process fluid lubricated pump and seawater injection system |
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