CN202309375U - Furnace water pump motor with forced air-cooling heat shield - Google Patents
Furnace water pump motor with forced air-cooling heat shield Download PDFInfo
- Publication number
- CN202309375U CN202309375U CN2011204520064U CN201120452006U CN202309375U CN 202309375 U CN202309375 U CN 202309375U CN 2011204520064 U CN2011204520064 U CN 2011204520064U CN 201120452006 U CN201120452006 U CN 201120452006U CN 202309375 U CN202309375 U CN 202309375U
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- Prior art keywords
- motor
- water pump
- furnace water
- heat shielding
- heat
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000001816 cooling Methods 0.000 title claims abstract description 27
- 238000009423 ventilation Methods 0.000 claims abstract description 19
- 238000004804 winding Methods 0.000 claims abstract description 7
- 210000003739 neck Anatomy 0.000 description 19
- 239000000498 cooling water Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model aims to provide a furnace water pump motor with a forced air-cooling heat shield. The forced air-cooling heat shield has a simple structure and can effectively shield heat transferred from a furnace water pump shell, the over-high temperature of the motor is avoided, and the reliability of the furnace water pump motor is improved. The furnace water pump motor comprises a motor shell, wherein a motor stator, a motor rotor and motor windings are arranged in the motor shell; a side part of the motor shell is provided with a heat exchanger; the motor shell is connected with the furnace water pump shell through the heat shield; the heat shield comprises a tubular thermal neck and a ventilation cover at the periphery of the thermal neck; a ventilating cavity is formed between the ventilation cover and the thermal neck; the ventilation cover has a ventilating hole; and an electric cooling fan is arranged in the ventilating cavity. By the cooling fan, the flow of air passing through the thermal neck can be increased, so that more heat transferred below the high-temperature furnace water pump shell is rapidly dissipated, less heat is transferred from a high-temperature section of the thermal neck to the motor shell, and the over-high temperature of the motor is avoided.
Description
Technical field
The utility model belongs to the thermal power generating technology field, specially refers to a kind of boiler pump motor that forced air cooling formula heat shielding is arranged that is applied in the large turbo-type generator group boiler main pipe system.
Background technology
Boiler water circulating pump (being called for short the stove water pump) is mounted in the visual plant that is used to carry HTHP stove water in the large turbo-type generator group boiler main pipe system, and boiler pump motor is the drive motors of boiler water circulating pump.The temperature of large turbo-type generator group boiler water is up to more than 300 ℃, and operating pressure reaches more than the 20MPa.Because the working medium that boiler water circulating pump is carried is the stove water of HTHP, the connection between pump case and the drive motors (boiler pump motor) can't be carried out effective seal partly with regard to present technology.Therefore the structure of no stuffing box is partly all adopted in the pump housing of stove water pump both domestic and external and the connection between the boiler pump motor, and stove water pump pump case and boiler pump motor shell connect into a seal chamber that interconnects.
Present technology; The insulating material of the motor windings in the boiler pump motor can't tolerate high temperature more than 300 ℃; Therefore the stator of boiler pump motor and winding thereof must directly seal and be installed in the cooling water, promptly so-called wet stator motor structure, and the temperature of cooling water will remain on below 80 ℃.The upper and lower cooling water of boiler pump motor adopts the cooling of dispelling the heat of closed cycle mode through the heat exchanger that is contained in the motor side for this reason, and the temperature of maintenance cooling water is no more than 80 ℃.For alleviating the burden of heat exchanger, between high temperature pump case more than 300 ℃ and the drive motors body below 80 ℃, be provided with the heat shielding section of trap heat, be commonly referred to heat shielding (promptly shielding the parts of the high temperature of pump case) to the conduction of motor cavity.
At present both at home and abroad the heat shielding section of boiler pump motor has two kinds of structures.A kind of is to be provided with a cooling jacket that passes to cooling water on the top of boiler pump motor, takes away under the high temperature pump housing heat that passes through cooling water, i.e. water-cooling pattern, though this kind mode heat shielding effect is better, and complex structure, cost is higher.Another kind is an elongated tubular sections to be set (like an elongated necks on boiler pump motor top; With the shell of boiler pump motor be an integral body; Claim hot neck again), this tubular sections reduces heat conducting area as far as possible, and bigger area of dissipation is arranged again; Take away the heat that passes under the high temperature pump case, i.e. air cooling mode through the air of circulation naturally.Though the heat shielding system of air cooling mode is simple in structure, because can't be apace the heat of hot neck be dissipated, so the heat shielding effect is relatively poor.
The utility model content
The purpose of the utility model is to propose a kind of boiler pump motor that forced air cooling formula heat shielding is arranged; This kind forced air cooling formula heat shielding is simple in structure, can effectively shield from the stove water pump cover and pass the heat of coming; Avoid motor temperature too high, improve the reliability of boiler pump motor.
The boiler pump motor that forced air cooling formula heat shielding is arranged of the utility model comprises electric machine casing; Be provided with motor stator, rotor and motor windings in the electric machine casing; The electric machine casing sidepiece is provided with heat exchanger; Said electric machine casing is connected with the stove water pump cover through heat shielding, and key is that said heat shielding comprises the hot neck of tubulose and is arranged at the ventilator cowling of hot neck periphery, ventilation housing of formation between said ventilator cowling and the hot neck; Said ventilator cowling has ventilation hole, is provided with electronic radiator fan in the said ventilation housing.
Through radiator fan being installed and ventilation housing being set; Can utilize radiator fan to increase air mass flow through hot neck portion; Thereby more, take away under the high temperature furnace water pump cover heat that passes quickly, reduce heat from the high temperature section of hot neck to the electric machine casing transmission, avoid motor temperature too high.
Further, said ventilation hole includes air port and air outlet, and said air intake vent is arranged at ventilator cowling near the electric machine casing place, and said air outlet is arranged at ventilator cowling near stove water pump cover place, and said radiator fan is arranged at the air intake vent place.Can force cold air to blow to hot neck like this from air intake vent place near electric machine casing; Hot-air after overheated neck heating is discharged from the air outlet near water pump cover; In forced air cooling, utilized cross-ventilation to carry out natural heat dissipation again, and can guarantee can be not too high near the hot neck temperature at electric machine casing place; Good cooling results has further been strengthened heat-sinking capability.
The end of said heat shielding is connected with the stove water pump cover through flange, as long as change flange, can mate with different stove water pump covers, has improved the versatility of boiler pump motor.
Compare with the boiler pump motor of traditional natural air cooling formula heat shielding; The boiler pump motor of the utility model utilizes the heat shielding of forced air cooling formula; Make the heat that is delivered to electric machine casing from the high temperature furnace water pump cover reduce 60%～70%; Can effectively intercept the heat that high temperature furnace water pump pump case transmits, make boiler pump motor avoid high temperature and scorch, improve the reliability of boiler pump motor.
Description of drawings
Fig. 1 is the structural representation of the boiler pump motor that forced air cooling formula heat shielding is arranged of the utility model.
Fig. 2 is the heat shielding structural representation in the boiler pump motor that forced air cooling formula heat shielding is arranged of the utility model.
Embodiment
Contrast accompanying drawing below; Through description, the effect of the mutual alignment between the shape of the embodiment of the utility model such as related each member, structure, the each several part and annexation, each several part and operation principle etc. are done further to specify to embodiment.
Embodiment 1:
Like Fig. 1, shown in 2, the boiler pump motor that forced air cooling formula heat shielding is arranged of present embodiment comprises electric machine casing 1, is provided with motor stator 2, rotor 3 and motor windings 4 in the electric machine casing 1; Electric machine casing 1 sidepiece is provided with heat exchanger 5; Electric machine casing 1 is connected with stove water pump cover 7 through heat shielding 6, and heat shielding 6 comprises the hot neck 61 of tubulose and is arranged at the ventilator cowling 62 of hot neck 61 peripheries, forms a ventilation housing 63 between ventilator cowling 62 and the hot neck 61; Ventilator cowling 62 has ventilation hole; Be provided with electronic radiator fan 64 in the ventilation housing 63, the power of radiator fan 64 is 80w, and rated voltage is an alternating current 220V.
Ventilation hole includes air port 651 and air outlet 652, and air intake vent 651 is arranged at ventilator cowling 62 near electric machine casing 1 place, and air outlet 652 is arranged at ventilator cowling 62 near stove water pump cover 7 places, and radiator fan 64 is arranged at air intake vent 651 places.Can force cold air to blow to hot neck 61 like this from air intake vent 651 places near electric machine casing; Hot-air after overheated neck 61 heating is discharged from the air outlet 652 near water pump cover 7; In forced air cooling, utilized cross-ventilation to carry out natural heat dissipation again, and can guarantee can be not too high near the hot neck temperature at electric machine casing 1 place; Good cooling results has further been strengthened heat-sinking capability.
The end of heat shielding 6 is connected with stove water pump cover 7 through flange 8, as long as change flange 8, can mate with different stove water pump covers 7, has improved the versatility of boiler pump motor.
Through radiator fan 64 being installed and ventilation housing 63 being set; The air mass flow that can utilize radiator fan 64 to increase through hot neck 61 parts; Thereby more, take away the heat that high temperature furnace water pump cover 7 times passes quickly, reduce heat and transmit to electric machine casing 1 from the high temperature section of hot neck 61, avoid motor temperature too high; Thereby reduce the generation of the fault that motor windings insulation that the high temperature because of the motor pump housing causes to the conduction of motor cavity scorches, reduced the stopping accident that causes thus.
Claims (3)
1. boiler pump motor that forced air cooling formula heat shielding is arranged; Comprise electric machine casing; Be provided with motor stator, rotor and motor windings in the electric machine casing, the electric machine casing sidepiece is provided with heat exchanger, and said electric machine casing is connected with the stove water pump cover through heat shielding; It is characterized in that said heat shielding comprises the hot neck of tubulose and is arranged at the ventilator cowling of hot neck periphery; Form a ventilation housing between said ventilator cowling and the hot neck, said ventilator cowling has ventilation hole, is provided with electronic radiator fan in the said ventilation housing.
2. the boiler pump motor that forced air cooling formula heat shielding is arranged according to claim 1; It is characterized in that said ventilation hole includes air port and air outlet; Said air intake vent is arranged at ventilator cowling near the electric machine casing place; Said air outlet is arranged at ventilator cowling near stove water pump cover place, and said radiator fan is arranged at the air intake vent place.
3. the boiler pump motor that forced air cooling formula heat shielding is arranged according to claim 1 and 2 is characterized in that the end of said heat shielding is connected with the stove water pump cover through flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204520064U CN202309375U (en) | 2011-11-15 | 2011-11-15 | Furnace water pump motor with forced air-cooling heat shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204520064U CN202309375U (en) | 2011-11-15 | 2011-11-15 | Furnace water pump motor with forced air-cooling heat shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309375U true CN202309375U (en) | 2012-07-04 |
Family
ID=46378187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204520064U Expired - Lifetime CN202309375U (en) | 2011-11-15 | 2011-11-15 | Furnace water pump motor with forced air-cooling heat shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202309375U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980112A (en) * | 2018-07-27 | 2018-12-11 | 合肥皖化电机技术开发有限责任公司 | A kind of air cooling equipment for boiler pump motor |
| CN109209908A (en) * | 2018-07-27 | 2019-01-15 | 合肥皖化电机技术开发有限责任公司 | A kind of shaft auxiliary device for furnace water pump |
| CN111472980A (en) * | 2019-12-21 | 2020-07-31 | 合肥皖化电机技术开发有限责任公司 | Furnace water pump speed increasing method |
-
2011
- 2011-11-15 CN CN2011204520064U patent/CN202309375U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980112A (en) * | 2018-07-27 | 2018-12-11 | 合肥皖化电机技术开发有限责任公司 | A kind of air cooling equipment for boiler pump motor |
| CN109209908A (en) * | 2018-07-27 | 2019-01-15 | 合肥皖化电机技术开发有限责任公司 | A kind of shaft auxiliary device for furnace water pump |
| CN111472980A (en) * | 2019-12-21 | 2020-07-31 | 合肥皖化电机技术开发有限责任公司 | Furnace water pump speed increasing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
|
| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: Patent of Hefei Wanhua Motor Technology Development Co.,Ltd. The person in charge Document name: Notice of expiration and termination of patent right |
|
| DD01 | Delivery of document by public notice |