CN102966577A - Method for removing fault of water pump - Google Patents
Method for removing fault of water pump Download PDFInfo
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- CN102966577A CN102966577A CN 201210488732 CN201210488732A CN102966577A CN 102966577 A CN102966577 A CN 102966577A CN 201210488732 CN201210488732 CN 201210488732 CN 201210488732 A CN201210488732 A CN 201210488732A CN 102966577 A CN102966577 A CN 102966577A
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- water
- pressure
- balance
- water pump
- gap
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- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a method for removing a fault of a water pump. The method for removing the axial thrust fault of the water pump comprises the steps as follows: the method of a thrust bearing, balance holes and a pressure reducing pipe is adopted; a hydraulic balance disc is adopted on the multistage pump; a rotary balance disc 3 is connected with a shaft 2; when a water wheel runs, pressure water is discharged from the water wheel, flows in a third chamber through a gap to act on the two disc surfaces of a fixed balance disc 4 and the rotary balance disc 3, and flows out through a gap in a fourth position; when the shaft is pulled to the water absorption side by an axial thrust, the gap in the fourth position is reduced, and the pressure of the pressure water acting on the balance discs is increased, so that the rotary balance disc is pushed to the opposite direction; and if the axial thrust is too small, the gap in the fourth position is increased, the pressure of the water in the third chamber is reduced, and the balance discs are moved in the water absorption direction, so that the impellers of the water pump are automatically kept in the center. The balance discs are adopted to be more used in the multistage water pump with the greatly large axial thrust and are mounted behind the last-stage impeller to achieve stress balance on the two sides of the water wheel.
Description
Technical field
The present invention relates to a water pump troubleshooting methodology.
Background technique
Peng River cigarette factory Model of pump is 80D-30 * 6 type centrifugal water pumps, 180 meters of lifts, flow 43M
3/ time, 37 kilowatts of power, 103 meters of actual pumping lifts.This water pump causes impeller and the excessive wear of axle position not to take out water owing to reasons such as use and Rig up errors.So replaced a same model water pump for subsequent use, start is installed gets into smooth, but electric motor overheating soon, power source trip, test run all is failure again and again, does not always take out water.Surpass rated current and generate heat for motor, cause the fault of not taking out water, though through getting rid of circuit, motor, water pump mounted inside tension and proofreading and correct machine axis, process after these problems that may occur, but fault is not got rid of yet, thought again afterwards to surpass due to the rated flow, so take at former water outlet bypass tube bypass tube place control water flow, the method for minimizing delivery of pump, or water has been pumped up, good times don't last long, moves about 2 hours, and chronic illness is retransmitted, power supply trips again, the heating of End cover for motor whole body.Find it is water pump axial motion problem through detailed inspection, two clutch axial motions reach 11.5 millimeters, and the axial motion of pump operation makes the bearing of motor friction and generates heat, and this moment, motor temperature was up to 70.More than.Take again outside former anchor (bolt) hole, motor and water pump distance are pulled open 1.5 millimeters, add up to 13 millimeters, the test run motor still generates heat, trips again.Do not get rid of because of the water pump fault and to cause this factory to stop production for 4 days continuously.
Summary of the invention
The object of the invention is to distinguish failure cause, especially to the working principle of water pump spindle thrust, provide the method for removing of a water pump fault.
The present invention solves its technical problem, and the technological scheme of taking is:
1. the method for removing of a water pump fault, it by water wheels, axle, revolution Balance disc, stable equilibrium circle, revolution balance ring, stable equilibrium dish, draining end cap, the third Room, Ding Chu, defend chamber, motor, pressure gauge, gate valve, outlet pipe, water pump, suction sleeve, lack of water hole, p
1, p
2, B, subtract leak to contain, p
2, pump case, impeller, P
1And the C composition, the working principle of its water pump spindle thrust is: after water threw away from impeller, the pressure of water was from p
1Be increased to p
2, p
2＞p
1, water flows into B, C two spaces just from the slit to both sides space B, C seepage, and the pressure of water still is P
2, acting on the pressure on the impeller, left upper portion is P
2, the bottom is P
1, right side pressure all is P
2P
2＞P
1So right atrial pressure is greater than left side pressure, this just makes impeller be subject to a thrust P from the right side
Axle,
This thrust is parallel with the direction of axle, so be called axle thrust, axle thrust has the effect that promotes impeller and pump shaft, the water outlet of water wheels and the water outlet of water guide circle are staggered, impeller will be pressed the wearing and tearing of fixed pump shell, and bearing is heating therefore, and the power of consumption also increases head.By analyzing, for failure cause, handle this axle thrust well, require to make water wheels both sides stress balance.
For getting rid of axle thrust fault method be: the water pump that has adopts thrust-bearing, the equalizing orifice of employing and relief pipe method are arranged, adopt the hydraulic equilibrium dish at multistage pump, revolution Balance disc 3 links together with axle 2, water wheels when work, out with the water of pressure, flow to again third indoor by water wheels through the gap, just act on stable equilibrium dish 4 and 3 two cards of revolution Balance disc, outwards flow out by the gap at fourth place simultaneously.When axle was pulled to the suction side by axle thrust, the gap at fourth place just reduced, and the pressure of pressure water action on Balance disc just increases, and just the revolution Balance disc was pushed to the on the contrary direction on (the right).If axle thrust is too small, the gap at fourth place increases, and the pressure of the third indoor water just reduces, and Balance disc just moves to the direction that absorbs water, and so just makes water pump vane in automatically remaining on the positive position.
Balance disc is general only to be used on the great multi-stage water pump of this end thrust, is contained in afterbody impeller back.Because not understanding above-mentioned water pump, we do not adopt Balance disc to process the principle of getting rid of end thrust, water pump is contained in the pressure gauge mistake on the lack of water osculum of Balance disc lack of water when dispatching from the factory, electric motor overheating is caused, power source trip because of can't trunnion shaft thrust by gambling plug in balance lack of water hole.Afterwards pressure gauge was taken down, allow lack of water from the lack of water orifice flow out, fault just obtains understanding and determines, and motor operation is normal, phase current is 41 peaces only, water pump has drawn up water, and water outlet reaches rated flow, and motor does not generate heat, power supply does not trip, Everything is fine for pump operation, and from then on normal production has recovered in factory, and full factory is to the satisfaction of all.
Description of drawings
Below in conjunction with drawings and Examples this is further specified.
Fig. 1 is that the method for removing structure of a water pump fault is always schemed.
Fig. 2 is the schematic diagram of water pump spindle thrust of the present invention.
Fig. 3 is water pump Balance disc schematic representation of the present invention.
1. water wheels, 2. axles, 3. revolution Balance discs, 4. stable equilibrium circles, 5. revolution 9. fourth places 10., balance ring stable equilibrium dish 7. draining end caps Room 8. third 6. defend out gate valve 14. outlet pipes 15. water pumps 16. suction sleeves 17. lack of water hole 18.p of chamber 11. motor, 12. pressure gauges 13. among the figure
119.p
221. contain 22.p 20.B subtract leakage
223. pump case 24. impeller 25.P
1, 26.C
Embodiment
In Fig. 1, motor (11) directly is connected with water pump by clutch, and pressure gauge (12) and lack of water hole (17) are arranged, and goes out Water gate valve (13) and is mounted on the outlet pipe (14), the control water flow, water pump (15) is multi-stage centrifugal pump.
In Fig. 2, p is arranged
1(18), P
2(19), B (20), material reducing letter (21), p
2(22), pump case (23), impeller (24), p
1(25), its working principle of C (26) is: after water threw away from impeller, the pressure of water was from p
1(18) be increased to p
2(19), p
2＞p
1, water flows into B (20), C (26) two spaces just from the slit to both sides space B (20), C (26) seepage, and the pressure of water still is P
2(19) pressure on the effect cured leaf wheel, left upper portion is P
2, the bottom is P
1(18) right side pressure all is P
2(19), P
2＞P
1So right atrial pressure is greater than left side pressure, this just makes impeller be subject to a thrust P from the right side
Axle,
This thrust is parallel with the direction of axle, so be called axle thrust, axle thrust has the effect of promotion impeller (24) and pump shaft, even the water outlet of water wheels (1) and the water outlet of water guide circle are staggered, impeller (24) will be pressed the wearing and tearing of fixed pump shell, bearing is heating therefore, and the power of consumption also increases head.To failure cause, handle this axle thrust by dissecting needle well, make water wheels both sides stress balance.
In Fig. 3, there are water wheels (1), axle (2), revolution Balance disc (3), stable equilibrium circle (4), revolution balance ring (5), stable equilibrium dish (6) and draining end cap (7) to form.Axle thrust fault method is a lot of for getting rid of, the water pump that has adopts thrust-bearing, the equalizing orifice of employing and relief pipe method are arranged, adopt the hydraulic equilibrium dish at multistage pump, revolution Balance disc (3) and axle (2) link together, during water wheels (1) work, by water wheels (1) out with the water of pressure, again in gap 1 flows to the third Room (8), just act on stable equilibrium dish (4) and (3) two cards of revolution Balance disc, outwards flow out by the gap of fourth place (9) simultaneously.When axle was pulled to the suction side by axle thrust, the gap of fourth place (9) just reduced, and the pressure of pressure water action on Balance disc just increases, and just revolution Balance disc (3) is pushed to the on the contrary direction on (the right).If axle thrust is too small, the gap of fourth place (9) increases, and the pressure of interior the water in the third Room (8) just reduces, and Balance disc just moves to the direction that absorbs water, and so just makes water pump vane (24) in automatically remaining on the positive position.
Claims (2)
1. the method for removing of a water pump fault is characterized in that: it by water wheels (1), axle (2), revolution Balance disc (3), stable equilibrium circle (4), revolution balance ring (5), stable equilibrium dish (6), draining end cap (7), the third Room (8), fourth place (9), defend chamber (10), motor (11), pressure gauge (12), gate valve (13), outlet pipe (14), water pump (15), suction sleeve (16) lack of water hole (17), p
1(18), P
2(19), B (20) subtracts leakage culvert (21), P
2(22), pump case (23), impeller (24), P
1(25) and C (26) form, for getting rid of axle thrust fault method be: the employing thrust-bearing is arranged, the equalizing orifice of employing and relief pipe method are arranged, adopt the hydraulic equilibrium dish at multistage pump, revolution Balance disc 3 links together with axle 2, during water wheels work, by water wheels out with the water of pressure, flow to again third indoorly through the gap, just act on stable equilibrium dish 4 and 3 two cards of revolution Balance disc, outwards flow out by the gap at fourth place simultaneously.When axle was pulled to the suction side by axle thrust, the gap at fourth place just reduced, and the pressure of pressure water action on Balance disc just increases, and just the revolution Balance disc was pushed to the on the contrary direction on (the right).If axle thrust is too small, the gap at fourth place increases, and the pressure of the third indoor water just reduces, and Balance disc just moves to the direction that absorbs water, and so just makes water pump vane in automatically remaining on the positive position.
2. the method for removing of a water pump fault according to claim 1 is characterized in that: adopt Balance disc, generally
Use is contained in afterbody impeller (24) back on the great multi-stage water pump of this end thrust, make water wheels both sides stress balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210488732 CN102966577A (en) | 2012-11-14 | 2012-11-14 | Method for removing fault of water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210488732 CN102966577A (en) | 2012-11-14 | 2012-11-14 | Method for removing fault of water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102966577A true CN102966577A (en) | 2013-03-13 |
Family
ID=47796936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210488732 Pending CN102966577A (en) | 2012-11-14 | 2012-11-14 | Method for removing fault of water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102966577A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110246409A (en) * | 2019-05-13 | 2019-09-17 | 中广核核电运营有限公司 | A kind of main pump maintenance simulation training device |
-
2012
- 2012-11-14 CN CN 201210488732 patent/CN102966577A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110246409A (en) * | 2019-05-13 | 2019-09-17 | 中广核核电运营有限公司 | A kind of main pump maintenance simulation training device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130313 |