CN200973038Y - Protection structure of drive machine of through-flow booster water flooding pump - Google Patents
Protection structure of drive machine of through-flow booster water flooding pump Download PDFInfo
- Publication number
- CN200973038Y CN200973038Y CN 200620027614 CN200620027614U CN200973038Y CN 200973038 Y CN200973038 Y CN 200973038Y CN 200620027614 CN200620027614 CN 200620027614 CN 200620027614 U CN200620027614 U CN 200620027614U CN 200973038 Y CN200973038 Y CN 200973038Y
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- motor
- electric motor
- cooling
- safeguard structure
- guide bearing
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Abstract
The utility model relates to the protection structure for the flow-type increased-pressure water filling pump driving electric motor. The structure is an improvement over the electric motor heat radiation and the sealing structure that is provided with the high-voltage water-cooling and oil-cooling passages. The screw slots arranged on the surface of the axle bush of the upper and the lower guiding bearings of the stator make the oil-cooling passage smooth and improves the circulating speed of the cooling oil under the influence of the rotational rotator, so that the temperature increase of the upper and the lower bearings are effectively inhibited and the heat radiation effect in the electric motor is obviously improved. Experiment shows that the arrangement of the screw slot controls the temperature increase in the electric motor in the scope of 60-80 centigrade. The internal cavity end of the electric motor of the double-end-face mechanical sealing part adopts the graphite sealing, thereby reducing or even eliminating the impinging crack in the high-pressure grits, improving the leakage-proof performance and relatively increasing the insulation intensity of the electric motor. The protection structure further improves the advantages of the flow-type increased-pressure water filling pump driving electric motor of high-temperature and high-voltage resistance performance.
Description
Technical field
The utility model belongs to submersible motor, particularly relates to a kind of safeguard structure of fluid-driven pressurized water injection electric pump drive motors.
Background technology
A kind of fluid-driven pressurized water injection electric pump, its motor is provided with water-cooled and two kinds of cooling ducts of oil cooling, two passages are separated by the double housing of motor, be the high pressure water-cooling channel of motor between the shell body of its double housing and the pressure pan,--top guide bearing--air gap between stator, the rotor--lower guide bearing is the circulation canal of cold oil between the double housing.Lower guide bearing one end of motor is provided with the breathing capsule of storage cold oil, and the rotor-end of this end is provided with the spoiler that makes the cold oil circulation.
The motor radiating structure of above-mentioned existing fluid-driven pressurized water injection electric pump has two kinds of cooling ducts, the more single water-cooling passage of its radiating effect has clear improvement, but still there is following technical problem: because top guide bearing and lower guide bearing are to be made of bearing shell that is installed in motor stator and the axle sleeve that is installed in rotor, its joint clearance is very little, the cold oil circulation does not freely cause upper and lower guide bearing temperature rise very high, bearing rapid wear not only also has a strong impact on the oil cooling effect of motor internal.
In addition, also there is the hidden danger of insulation aspect in the motor of existing fluid-driven pressurized water injection electric pump, as the sealing surface of the double mechanical seal spare of motor shaft rapid wear and the seepage that causes etc. under the impact of high pressure grit.
Summary of the invention
The utility model is in order to solve the technical problem that above-mentioned fluid-driven pressurized water injection electric pump motor radiator structure etc. exists, and proposes a kind of safeguard structure of fluid-driven pressurized water injection electric pump drive motors.
The technical solution of the utility model is: by the motor high pressure water-cooling channel that constitutes between the shell body of the double housing of motor, double housing and the pressure pan with by between the double housing, and--the oil cooling circulation canal that top guide bearing--air gap between stator, the rotor--lower guide bearing constitutes and breathe capsule and the double mechanical seal spare of spoiler, motor shaft setting is formed, its bearing shell surface that is installed on the upper and lower guide bearing of motor stator is provided with the helicla flute at perforation bearing shell two ends.
The utility model can also be taked following technical measures:
Described helicla flute is made of two parallel helicla flutes.
Described breathing capsule is a bellows capsule, and its end is provided with protective baffle plate.
Described double mechanical seal spare, the end surface mechanical sealing of its motor exocoel end is made of the dynamic and static sealing ring of carbide alloy, and the end surface mechanical sealing of motor cavity end is made of the stationary seal ring of carbide alloy and the rotary packing ring of graphite.
Described motor, its power lead-ining line surface that is located in the high pressure water-cooling channel is wound with stainless steel armour skin.
The beneficial effects of the utility model and advantage are: this safeguard structure is to the motor radiating with two kinds of cooling ducts of water under high pressure cold-peace oil cooling and a kind of improvement of hermetically-sealed construction, the helicla flute that the bearing shell surface of the upper and lower guide bearing of stator is provided with makes the oil cooling passage become unobstructed.And under the disturbance of rotor, improve the circulation rate of cold oil, the temperature rise of upper and lower guide bearing is effectively suppressed, radiating effect for motor internal obviously improves, test shows temperature rise control that the spiral fluted setting can make motor internal in 60-80 ℃ of scope, and has improved the working life of upper and lower guide bearing greatly.The motor cavity end of the double mechanical seal spare of this safeguard structure adopts graphite rotary packing ring and carbide alloy stationary seal ring fit structure, can reduce even eliminate the impact polishing scratch of high pressure grit, improve leakage performance, increased the dielectric strength of motor relatively.The stainless steel armour skin that twine on the protective baffle plate of bellows capsule end and power lead-ining line surface has the effect of resisting high pressure water impact and avoids the appearance of capsule fragmentation, the damaged short circuit phenomenon of power lead-ining line insulating sleeve.In a word, this safeguard structure has the outstanding advantage that high temperature resistant, the high-voltage performance that make fluid-driven pressurized water injection electric pump drive motors obtain further obvious improvement.
Description of drawings
Accompanying drawing 1 the utility model structure partial generalized section.
The bearing shell generalized section of accompanying drawing 2 lower guide bearings.
The A portion enlarged diagram of accompanying drawing 3 Fig. 1.
Drawing reference numeral: 1 water inlet, 2 pressure pans, 3 inner housings, 4 shell bodies, 5 stators, 6 vent valves, 7 epoxy resin embedding layers, 8 fuel feeding valves, 9 power lead-ining lines, 10 stainless steel armour skins, 11 ring flanges, 12 motor shafts, 13 double mechanical seal spares, 14 top guide bearing bearing shells, 15 top guide bearing axle sleeves, 16 rotors, 17 lower guide bearing bearing shells, 18 lower guide bearing axle sleeves, 19 spoilers, 20 bellows capsules, 21 protective baffle plates, 22 helicla flutes.
Embodiment
Below in conjunction with embodiment and description of drawings the utility model thereof.
Embodiment as shown in Figure 1, motor is provided with the double housing that is made of inner housing 3 and shell body 4, constitutes the high-pressure cooling water passage between its shell body 4 and the pressure pan 2.Between the inner housing 3 and shell body 4 of motor-top guide bearing that is made of top guide bearing bearing shell 14 and top guide bearing axle sleeve 15--air gap between stator 5, the rotor 16-lower guide bearing that is made of lower guide bearing bearing shell 17 and lower guide bearing axle sleeve 18 is formed the circulation canal of cold oil.The lower guide bearing one end end of motor is provided with the bellows capsule 20 of storage cold oil, and the rotor-end of this end is provided with the spoiler 19 that makes the cold oil circulation.The stator 5 of motor is provided with epoxy resin embedding layer 7.Pressure pan 2 is provided with fuel feeding valve 8 and the vent valve 6 that is communicated in the cold oil circulation canal.The high-pressure cooling water passage joins with the pump intake that ring flange 11 is connected.
In the foregoing description, be installed on the top guide bearing bearing shell 14 of stator 5 and lower guide bearing bearing shell 17 surfaces be respectively equipped with as shown in Figure 2 perforation bearing shell two ends, two parallel helicla flutes 22.
A portion among Fig. 1 is provided in a side of the double mechanical seal spare 13 of motor shaft 12, its structure is shown in Fig. 3 A portion enlarged diagram, the end surface mechanical sealing of motor exocoel end is made of the dynamic and static sealing ring of carbide alloy, and the end surface mechanical sealing of motor cavity end is made of carbide alloy stationary seal ring and graphite rotary packing ring f.
In addition, in the foregoing description, motor power lead-in 9 surfaces that are located in the high pressure water-cooling channel are wound with stainless steel armour skin 10.The end of bellows capsule 20 is provided with protective baffle plate 21, prevents that electric pump water inlet 1 High-Pressure Water is via the impact of capsule respiratory chamber intercommunicating pore to bellows capsule 20.
Claims (5)
1, the safeguard structure of fluid-driven pressurized water injection electric pump drive motors,--the oil cooling circulation canal that top guide bearing--air gap between stator, the rotor--lower guide bearing constitutes and breathe capsule and the double mechanical seal spare of spoiler, motor shaft setting is formed, it is characterized in that: the bearing shell surface that is installed on the upper and lower guide bearing of motor stator is provided with the helicla flute at perforation bearing shell two ends by the motor high pressure water-cooling channel that constitutes between the shell body of the double housing of motor, double housing and the pressure pan with by between the double housing.
2, safeguard structure according to claim 1 is characterized in that: described helicla flute is made of two parallel helicla flutes.
3, safeguard structure according to claim 1 is characterized in that: described breathing capsule is a bellows capsule, and its end is provided with protective baffle plate.
4, safeguard structure according to claim 1, it is characterized in that: described double mechanical seal spare, the end surface mechanical sealing of its motor exocoel end is made of the dynamic and static sealing ring of carbide alloy, and the end surface mechanical sealing of motor cavity end is made of the stationary seal ring of carbide alloy and the rotary packing ring of graphite.
5, safeguard structure according to claim 1 is characterized in that: described motor, its power lead-ining line surface that is located in the high pressure water-cooling channel is wound with stainless steel armour skin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620027614 CN200973038Y (en) | 2006-10-16 | 2006-10-16 | Protection structure of drive machine of through-flow booster water flooding pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620027614 CN200973038Y (en) | 2006-10-16 | 2006-10-16 | Protection structure of drive machine of through-flow booster water flooding pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200973038Y true CN200973038Y (en) | 2007-11-07 |
Family
ID=38884289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620027614 Expired - Fee Related CN200973038Y (en) | 2006-10-16 | 2006-10-16 | Protection structure of drive machine of through-flow booster water flooding pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200973038Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847909A (en) * | 2010-05-21 | 2010-09-29 | 宝鸡忠诚机床股份有限公司 | Cooling method of high-speed lathe electric main shaft part and structure thereof |
| CN108768081A (en) * | 2018-08-21 | 2018-11-06 | 昆山普东流体设备有限公司 | Double shells body-internal-circulation submersible motor |
-
2006
- 2006-10-16 CN CN 200620027614 patent/CN200973038Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847909A (en) * | 2010-05-21 | 2010-09-29 | 宝鸡忠诚机床股份有限公司 | Cooling method of high-speed lathe electric main shaft part and structure thereof |
| CN108768081A (en) * | 2018-08-21 | 2018-11-06 | 昆山普东流体设备有限公司 | Double shells body-internal-circulation submersible motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071107 Termination date: 20141016 |
|
| EXPY | Termination of patent right or utility model |