CN105356648A - High-power, low-speed and positive-pressure type explosion-proof induction motor - Google Patents
High-power, low-speed and positive-pressure type explosion-proof induction motor Download PDFInfo
- Publication number
- CN105356648A CN105356648A CN201510876028.6A CN201510876028A CN105356648A CN 105356648 A CN105356648 A CN 105356648A CN 201510876028 A CN201510876028 A CN 201510876028A CN 105356648 A CN105356648 A CN 105356648A
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- motor
- cooling
- induction motor
- water pipe
- air
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/136—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
- H02K9/18—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a high-power, low-speed and positive-pressure type explosion-proof induction motor. The high-power, low-speed and positive-pressure type explosion-proof induction motor comprises a positive-pressure type explosion-proof induction motor body; a cover plate and an end cover are in clearance fit with a rotation shaft; a sealing device composed of a spring ring and a carbon ring is arranged between the cover plate and the end cover; and the top of the motor is provided an air-cooling cooler device. According to the high-power, low-speed and positive-pressure type explosion-proof induction motor of the invention, the spring ring and the carbon ring are adopted to seal a shaft penetration portion between a stator and a rotor, and the problem of leakage can be solved; a first set of forced air-cooling equipment is arranged at the upper part of the motor body so as to extract heat generated by the motor; extracted heat is cooled through a cooling tube and then enters a fan, so that internal circulation cooling can be performed on the fan; a second set of forced air-cooling equipment is adopted to extract air, and the air can assist in exhausting internal heat of the fan by means of the cooling tube, wherein the internal heat is exchanged through the cooling tube; and therefore, the cooling tube can continuously perform heat transfer, and the cooling of the motor can be completed finally.
Description
Technical field
The present invention relates to positive voltage type anti-explosion induction motor technical field, particularly relate to a kind of high-power low-speed positive voltage type anti-explosion induction motor.
Background technology
Current high-power low-speed positive voltage type anti-explosion induction motor cannot realize mainly containing two reasons, one, and due to bulky, the leakage rate of barotropic gas is large, and conventional seals can not meet designing requirement.Its two, because the loss of the large generation of power is many, and the low cooling capacity that causes of rotating speed declines, and cannot meet temperature increase requirement.
First, the large main air leak position of leakage rate of barotropic gas is the through position of the shaft between stator and rotor, usual small-power positive voltage type anti-explosion electric chance uses felt to seal, but felt is more loose, and its impact being subject to environment warm and humid changes greatly for a long time, so its sealing effectiveness is bad, the leakage rate requirement of the explosion-proof motivation of high-power positive pressure type cannot be met.
Secondly, existing high-power low-speed positive voltage type anti-explosion induction motor all adopts usually from fanning air-cooled structure, and the cooling effect certainly fanning air-cooled structure motor is very large by motor influence of rotation speed, and the higher cooling effect of rotating speed is better, and the lower cooling effect of rotating speed is poorer.The high-power low-speed motor that the present invention relates to, because the conference of motor own power produces more heat, and the lower meeting of rotating speed causes cooling effect poor, and electric machine temperature rise can be made high, therefore can not meet the cooling requirement of high-power low-speed motor from fan air-cooled structure.
Summary of the invention
The object of this invention is to provide a kind of high-power low-speed positive voltage type anti-explosion induction motor, the problem that high-power low-speed positive voltage type anti-explosion induction motor leakage rate is large, cooling effect is poor can be solved.
The technical solution used in the present invention is:
A kind of high-power low-speed positive voltage type anti-explosion induction motor, comprises positive voltage type anti-explosion induction motor body, described cover plate and be matched in clearance between end cap and rotating shaft, and cover plate and end cap centre are provided with the sealing device be made up of ring spring and carbocyclic ring, described motor top is also provided with hollow cooler device, described hollow cooler device comprises first group of forced air cooling equipment and second group of forced air cooling equipment, second group of described forced air cooling equipment is arranged on directly over motor body, first group of described forced air cooling equipment is arranged on the top of motor body by cover body sealing, two dividing plates are provided with in described cover body, the both sides being arranged on the air outlet of motor body that two dividing plates are parallel respectively, and the two ends of dividing plate and cover body seal and arrange, the top seal of two described dividing plates is provided with the first T-shaped air channel, the top center place in the first T-shaped air channel is provided with the first blower fan, the output shaft of the first blower fan passes perpendicularly through the first T-shaped air channel from top to bottom, and output shaft is vertically provided with multiple flabellum, flabellum and output shaft are coaxially arranged, described second group is forced blower fan to be arranged on motor upper rear, comprise the second blower fan, cooling water pipe and the second T-shaped air channel, described cooling water pipe is horizontally disposed with and passes cover body and dividing plate, one end of cooling water pipe is connected by the air inlet of sealing air pipe with the second T-shaped air channel, the output shaft of the second blower fan passes perpendicularly through the second T-shaped air channel from top to bottom, and output shaft is vertically provided with multiple flabellum, flabellum and output shaft are coaxially arranged.
Described cooling water pipe has multiple, and the end of multiple cooling water pipe is all connected by the air inlet of sealing air pipe with the second T-shaped air channel.
Described ring spring is arranged away from the side of rotating shaft, carbocyclic ring to filling cover plate, end cap, gap between ring spring and rotating shaft carry out sealing and arrange.
First the present invention is sealed the through position of the shaft between stator and rotor by the sealing device be made up of ring spring and carbocyclic ring, compare existing felt seal structure, carbocyclic ring moment and rotor can be made under the effect of ring spring to closely cooperate, and the intensity of carbocyclic ring is high, self lubricity is good, frictional dissipation is little, not affected by environment, can be long-term, the problem of effectively avoiding barotropic gas to leak.Further, the present invention is by the absolutely empty cooling device of design, device mainly comprises two groups of forced air cooling equipment and one group of cooling water pipe, is got up by motor internal recycle heat by first group of forced air cooling equipment, and the hot blast that circulation is got up can continuously pass through the outer wall of cooling water pipe; And cool ambient air can be continued through cooling water pipe inside by second group of forced air cooling equipment; Complete the cold and hot exchange of motor eventually through cooling water pipe, thus realize the cooling of motor.The present invention compares existing from fanning device for cooling, and the cooling effect of absolutely empty cooling device does not limit by the rotating speed of motor own, thus makes motor cooling difficulty problem when the rotating speed of solution motor own is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of sealing device of the present invention;
Fig. 2 is the structural representation of absolutely empty cooling device of the present invention.
Embodiment
As illustrated in fig. 1 and 2, the present invention includes a kind of high-power low-speed positive voltage type anti-explosion induction motor, comprise positive voltage type anti-explosion induction motor body, be also provided with sealing device and hollow cooler device.
Described sealing device is arranged on motor at the through position of the shaft, the through position of the shaft cover plate 2 of described motor and be matched in clearance between end cap 3 and rotating shaft 1, at least leave more than 1mm gap, avoid cover plate 2 and rub between end cap 3 and rotating shaft 1 and cause noise and vibration; And the sealing device be made up of ring spring 4 and carbocyclic ring 5 is provided with in the middle of cover plate 2 and end cap 3, described ring spring 4 is arranged away from the side of rotating shaft 1, and carbocyclic ring 5 pairs of cover plates 2, between end cap 3 ring spring 4 and rotating shaft 1 four, gap is carried out sealing and arranged.The effect that the moment presses is played in setting due to ring spring 4, carbocyclic ring 5 moment and cover plate 2 and end cap 3 are arranged with rotating shaft 1 gapless, because the resistance to wear of carbocyclic ring 5 is high, the feature such as have high strength, good self lubricity, frictional dissipation little, and not by the impact of humiture, thus the large problem of perfect solution high-power low-speed positive voltage type anti-explosion induction motor leakage rate.
Described motor top is also provided with hollow cooler device, described hollow cooler device comprises first group of forced air cooling equipment and second group of forced air cooling equipment, second group of described forced air cooling equipment is arranged on directly over motor body 12, first group of described forced air cooling equipment is arranged on the top of motor body 12 by cover body 13 sealing, two dividing plates 6 are provided with in described cover body 13, the both sides being arranged on the air outlet of motor body 12 that two dividing plates 6 are parallel respectively, and the two ends of dividing plate 6 and cover body 13 seal and arrange, the top seal of two described dividing plates 6 is provided with the first T-shaped air channel 7, the top center place in the first T-shaped air channel 7 is provided with the first blower fan 8, the output shaft of the first blower fan 8 passes perpendicularly through the first T-shaped air channel 7 from top to bottom, and output shaft is vertically provided with multiple flabellum, flabellum and output shaft are coaxially arranged, not shown.
Described second group is forced blower fan to be arranged on motor body 12 upper rear, comprise the second blower fan 11, cooling water pipe 9 and the second T-shaped air channel 15, described cooling water pipe is horizontally disposed with and passes cover body 13 and dividing plate 6, one end of cooling water pipe 9 is connected by the air inlet of sealing air pipe 14 with the second T-shaped air channel 15, the output shaft of the second blower fan 11 passes perpendicularly through the second T-shaped air channel 15 from top to bottom, and output shaft is vertically provided with multiple flabellum; Flabellum and output shaft are coaxially arranged.Described cooling water pipe 9 has multiple, and the end of multiple cooling water pipe 9 is all connected by the air inlet of sealing air pipe 14 with the second T-shaped air channel 15.Multiple cooling water pipe makes cooling effect better.
During normal work, heat in motor from the centre air vent of motor out, due to the effect of the first blower fan 8 in first group of forced air cooling equipment, heat is made to be increased along dividing plate 6 passage by the first T-shaped air channel 7, force the cooling water pipe 9 in blower fan through second group in the process risen, the two carries out heat exchange, lower the temperature, then the air inlet of motor body 12 is imported through the both sides of cover body 13, thus complete the Inner eycle of wind path, and the second blower fan 11 is when working, then the cold air of air is sucked cooling water pipe 9, the heat of motor internal exchanges in the air in cooling water pipe 9 by cooling water pipe 9 by cooling water pipe 9, after exchanging, hot blast enters behind the second T-shaped air channel from cooling water pipe 9 and is discharged to air by the second blower fan 11 at the aft mounted flabellum of motor, thus the reducing temperature twice completed first group of forced air cooling equipment, and the present invention can make the air quantity in each cooling water pipe balanced, cooling is made to reach optimum efficiency, compare existing machine fan device for cooling,
the present invention first blower fan and the second blower fanrotating speed does not limit by the rotating speed of motor own, thus makes motor cooling difficulty problem when the rotating speed of solution motor own is low.
Claims (3)
1. a high-power low-speed positive voltage type anti-explosion induction motor, comprise positive voltage type anti-explosion induction motor body, it is characterized in that: described cover plate and between end cap and rotating shaft for matched in clearance, and be provided with the sealing device be made up of ring spring and carbocyclic ring in the middle of cover plate and end cap, described motor top is also provided with hollow cooler device, described hollow cooler device comprises first group of forced air cooling equipment and second group of forced air cooling equipment, second group of described forced air cooling equipment is arranged on directly over motor body, first group of described forced air cooling equipment is arranged on the top of motor body by cover body sealing, two dividing plates are provided with in described cover body, the both sides being arranged on the air outlet of motor body that two dividing plates are parallel respectively, and the two ends of dividing plate and cover body seal and arrange, the top seal of two described dividing plates is provided with the first T-shaped air channel, the top center place in the first T-shaped air channel is provided with the first blower fan, the output shaft of the first blower fan passes perpendicularly through the first T-shaped air channel from top to bottom, and output shaft is vertically provided with multiple flabellum, flabellum and output shaft are coaxially arranged, described second group is forced blower fan to be arranged on motor upper rear, comprise the second blower fan, cooling water pipe and the second T-shaped air channel, described cooling water pipe is horizontally disposed with and passes cover body and dividing plate, one end of cooling water pipe is connected by the air inlet of sealing air pipe with the second T-shaped air channel, the output shaft of the second blower fan passes perpendicularly through the second T-shaped air channel from top to bottom, and output shaft is vertically provided with multiple flabellum, flabellum and output shaft are coaxially arranged.
2. the positive voltage type anti-explosion induction motor of high-power low-speed according to claim 1, is characterized in that: described cooling water pipe has multiple, and the end of multiple cooling water pipe is all connected by the air inlet of sealing air pipe with the second T-shaped air channel.
3. the positive voltage type anti-explosion induction motor of high-power low-speed according to claim 2, is characterized in that: described ring spring is arranged away from the side of rotating shaft, carbocyclic ring to filling cover plate, end cap, gap between ring spring and rotating shaft carry out sealing and arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510876028.6A CN105356648A (en) | 2015-12-03 | 2015-12-03 | High-power, low-speed and positive-pressure type explosion-proof induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510876028.6A CN105356648A (en) | 2015-12-03 | 2015-12-03 | High-power, low-speed and positive-pressure type explosion-proof induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105356648A true CN105356648A (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510876028.6A Pending CN105356648A (en) | 2015-12-03 | 2015-12-03 | High-power, low-speed and positive-pressure type explosion-proof induction motor |
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| CN (1) | CN105356648A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787394A (en) * | 2016-12-16 | 2017-05-31 | 卧龙电气集团股份有限公司 | The absolutely empty box variable-frequency motor of cooling type |
| CN107359763A (en) * | 2017-08-01 | 2017-11-17 | 卧龙电气集团股份有限公司 | A kind of high-power nine phases asynchronous motor |
| CN109067069A (en) * | 2018-08-31 | 2018-12-21 | 卧龙电气南阳防爆集团股份有限公司 | A kind of light-duty positive pressure explosion-proof type box type electric generator |
| CN110710086A (en) * | 2017-05-27 | 2020-01-17 | 西门子股份公司 | Cooling fan housing and motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10174369A (en) * | 1996-12-06 | 1998-06-26 | Meidensha Corp | Totally-enclosed fan cooled heat exchange type dynamo-electric machine |
| US6499532B1 (en) * | 1999-05-04 | 2002-12-31 | Kevin R. Williams | Electric motor cooling system |
| CN202978578U (en) * | 2012-11-15 | 2013-06-05 | 西安盾安电气有限公司 | Ventilation structure of air-air cooler used for motor |
| CN203608029U (en) * | 2013-11-29 | 2014-05-21 | 南阳防爆集团股份有限公司 | Air-cooled structure of box-type variable-frequency motor |
| CN104362824A (en) * | 2014-12-06 | 2015-02-18 | 南阳防爆集团股份有限公司 | Low-center high-capacity high-speed positive pressure type high-voltage three-phase asynchronous motor |
| CN205248952U (en) * | 2015-12-03 | 2016-05-18 | 卧龙电气南阳防爆集团股份有限公司 | Explosion -proof induction motor of high -power positive die mould of low -speed |
-
2015
- 2015-12-03 CN CN201510876028.6A patent/CN105356648A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10174369A (en) * | 1996-12-06 | 1998-06-26 | Meidensha Corp | Totally-enclosed fan cooled heat exchange type dynamo-electric machine |
| US6499532B1 (en) * | 1999-05-04 | 2002-12-31 | Kevin R. Williams | Electric motor cooling system |
| CN202978578U (en) * | 2012-11-15 | 2013-06-05 | 西安盾安电气有限公司 | Ventilation structure of air-air cooler used for motor |
| CN203608029U (en) * | 2013-11-29 | 2014-05-21 | 南阳防爆集团股份有限公司 | Air-cooled structure of box-type variable-frequency motor |
| CN104362824A (en) * | 2014-12-06 | 2015-02-18 | 南阳防爆集团股份有限公司 | Low-center high-capacity high-speed positive pressure type high-voltage three-phase asynchronous motor |
| CN205248952U (en) * | 2015-12-03 | 2016-05-18 | 卧龙电气南阳防爆集团股份有限公司 | Explosion -proof induction motor of high -power positive die mould of low -speed |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787394A (en) * | 2016-12-16 | 2017-05-31 | 卧龙电气集团股份有限公司 | The absolutely empty box variable-frequency motor of cooling type |
| CN106787394B (en) * | 2016-12-16 | 2023-08-04 | 卧龙电气集团股份有限公司 | Air-air cooling box type variable frequency motor |
| CN110710086A (en) * | 2017-05-27 | 2020-01-17 | 西门子股份公司 | Cooling fan housing and motor |
| US11362563B2 (en) | 2017-05-27 | 2022-06-14 | Siemens Aktiengesellschaft | Cooling enclosure and motor |
| CN107359763A (en) * | 2017-08-01 | 2017-11-17 | 卧龙电气集团股份有限公司 | A kind of high-power nine phases asynchronous motor |
| CN109067069A (en) * | 2018-08-31 | 2018-12-21 | 卧龙电气南阳防爆集团股份有限公司 | A kind of light-duty positive pressure explosion-proof type box type electric generator |
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Application publication date: 20160224 |