CN202602465U - Supplementary cooling device of air cooling generator - Google Patents
Supplementary cooling device of air cooling generator Download PDFInfo
- Publication number
- CN202602465U CN202602465U CN 201220287497 CN201220287497U CN202602465U CN 202602465 U CN202602465 U CN 202602465U CN 201220287497 CN201220287497 CN 201220287497 CN 201220287497 U CN201220287497 U CN 201220287497U CN 202602465 U CN202602465 U CN 202602465U
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Abstract
The utility model discloses a supplementary cooling device of an air cooling generator, which ensures that the air cooling generator can generate power at a full load in high-temperature weather. The device comprises an air cooling generator, cold air generation equipment, a cold air channel, an air feeder and a generator air inlet temperature/humidity meter, wherein the cold air generation equipment is mounted at the outer part of the air cooling generator; one end of the cold air channel is communicated with an air outlet of the cold air generation equipment, and the other end is communicated with an air supplement port; the air feeder is mounted close to the air supplement port in the cold air channel; the generator air inlet temperature/humidity meter is mounted close to the rotor in an air inlet channel of the generator; and an openable hot air discharge door is arranged on an access hole. Through the device, the cold air generated by the cold air generation equipment is fed into the air supplement port through the cold air channel by using the air feeder and enters the air inlet channel of the generator so as to reduce the air inlet temperature, sufficiently dissipate heat of a stator coil of the generator and ensure that the generator can operate at a full load in high-temperature weather.
Description
Technical field
The utility model belongs to the air cooled generator technical field, is specifically related to a kind of air cooled generator and when hot weather, replenishes cooling device.
Background technology
Generator is in power generation process, and electricity generator stator coil heat release meeting raises the generator internal temperature.In order to guarantee the safe operation of generator, modes such as common at present employing air cooling make the stator coil temperature be no more than rated temperature.
The generator air cooling is that air cooling refers in order to reduce generator-temperature detection; Send into generator inside to cold air; Cold air has absorbed the heat of generator generation and has become hot-air, and hot-air becomes cold air again through the recirculated cooling water heat exchange in the aerial cooler again, thus recycle.
What air cooled generator adopted usually is a kind of airtight forced circulation air cooling system, sees Fig. 1 for details.This airtight forced circulation air cooling system under the hot weather environment, cooling effect variation often, its reason is: along with the hot weather ambient temperature raises; The recirculated cooling water temperature also raises; Make to uprise that promptly the EAT of generator raises, thereby cause the cooling effect variation of whole airtight forced circulation air cooling system through the cooled cold air temperature of aerial cooler; The stator coil overtemperature that further causes generator, and then bring threat for the security of operation of generator.The general in this case mode that reduces generator load that adopts is controlled stator coil maintenance normal working temperature, but the result who does like this is the minimizing that directly causes energy output, has reduced the economic benefit in power plant.
Summary of the invention
In order generator to be generated electricity at full capacity at hot weather; Also to guarantee not overtemperature of stator coil simultaneously; On the basis of the original airtight forced circulation air cooling system of air cooled generator, the utility model provide a kind of when hot weather air cooling generator supplements cooling device.
The technical scheme that the utility model adopts is: a kind of additional cooling device of air cooled generator; Described air cooled generator comprises electric generator casing and air compartment, is provided with stator coil, rotor in the casing, is provided with aerial cooler, wind inlet channel, air-out air channel in the air compartment; Air compartment shell and corresponding section, air-out air channel have manhole; Have wind-supplying mouth with corresponding section, aerial cooler below on the air compartment shell, wind inlet channel is positioned at the below of both sides rotor, and wind inlet channel is connected with wind-supplying mouth; Described additional cooling device also comprises cold air manufacturing equipment, cool-air duct, forced draft fan, generator air intake thermohygrometer; The cold air manufacturing equipment is installed on the outside of air cooled generator, and an end of said cool-air duct is connected with the air outlet of cold air manufacturing equipment, and the other end is connected with wind-supplying mouth; It is interior near the wind-supplying mouth place that described forced draft fan is installed in cool-air duct, and the cold air that the cold air manufacturing equipment produces is sent into wind-supplying mouth through cool-air duct by forced draft fan; Described generator air intake thermohygrometer is installed on the wind inlet channel of generator near the rotor place; Described manhole is equipped with the exhaust of hot air door that can open and close.
As a kind of preferred, said cold air manufacturing equipment is an air conditioner.Like this than being easier to buying, the suitable popularization.
As a kind of preferred, be provided with the filtering type inlet box at the air inlet place of said air conditioner.Can guarantee like this to produce clean cold air, thus protection equipment.
As a kind of preferred, said generator air intake thermohygrometer is two, is installed in respectively in the different wind inlet channel in generator both sides, so that better control EAT and humidity.
After adopting the additional cooling device of the utility model on the air cooled generator; When hot weather; The electricity generator stator coil cooling effect is good; Generation load can reach rated load, and overload capacity also is improved, power plant safety in production and economic benefit bumper harvests in the time of can being implemented in hot weather.
Transform example as with Zhejiang Province's Haining City garbage incinerating power plant air cooled generator: the air cooled generator model that the Haining City garbage incinerating power plant uses was QF2W-7.5-2A, and rated power is 7500KW, annual hot weather especially 7,8,9 three months; Because weather temperature raises, make the recirculated cooling water temperature raise, and then the EAT of generator has surpassed 40 ℃; Reach 46 ℃ when the highest; The safe operation of generator is on the hazard, and generator load also can only drop to and can guarantee not overtemperature of stator coil about 7200KW, lacks than rated load and generates electricity about 300KW; Three months few altogether generating about 300x24x30x3=64.8 (ten thousand kilowatt hours); Generating economic loss 64.8x0.66=43 (ten thousand yuan), waste disposal fee reduces 64.8/302x75=16 (ten thousand yuan) simultaneously, adds up to reduce income 43+16=59 (ten thousand yuan).Haining garbage incinerating power plant air cooled generator had carried out technological transformation according to Fig. 2 in 2011, this air cooled generator is replenished cooling device test, and had obtained success.Can retrieve economic losses about about 600,000 yuan every year; And the cost that is used for technological transformation is very low; Only comprise that one of floor air conditioner, one of axial flow fan, two of thermohygrometers, one of filtering type inlet box, one of cool-air duct, cable are some, only need more than 10,000 yuan, with low cost; Simple in structure, have excellent popularization and be worth.
Description of drawings
Fig. 1 is the airtight forced circulation air cooling system of air cooled generator figure.
Among the figure: 1-electric generator casing, 2-generator air compartment, 3-generator wind inlet channel, 4-generator air-out air channel, 5-electricity generator stator coil, 6-generator amature, 7-generator cooling air inducing wind wheel, 8-manhole, 9-wind-supplying mouth, 10-generator aerial cooler.
Fig. 2 replenishes the cooling device sketch map for air cooled generator.
Among the figure: 11-cold air manufacturing equipment, 12-forced draft fan, 13-filtering type inlet box, 14-cool-air duct, 15-generator air intake thermohygrometer, 16-exhaust of hot air door.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is elaborated.
Fig. 2 replenishes the cooling device sketch map for air cooled generator.As shown in Figure 2; Air cooled generator replenishes cooling device and comprises an air cooled generator, and described air cooled generator comprises electric generator casing 1 and air compartment 2, is provided with stator coil 5, rotor 6 in the casing 1; Be provided with aerial cooler 10, wind inlet channel 3, air-out air channel 4 in the air compartment 2; Air-out air channel 4 is positioned at the below of stator coil 5, the top of aerial cooler 10, and air compartment 2 shells and 4 corresponding sections, air-out air channel have manhole 8, has wind-supplying mouth 9 with corresponding section, aerial cooler 10 below on air compartment 2 shells; Wind inlet channel 3 is two, lays respectively at the below of both sides rotor 6.Described additional cooling device also comprises cold air manufacturing equipment 11, cool-air duct 14, forced draft fan 12, generator air intake thermohygrometer 15; Cold air manufacturing equipment 11 is installed on the outside of air cooled generator; One end of said cool-air duct 14 is communicated with the sealing of the air outlet of floor air conditioner; The other end is communicated with wind-supplying mouth 9 sealings; Forced draft fan 12 is installed in the cool-air duct 14 near wind-supplying mouth 9 places, and generator air intake thermohygrometer 15 is installed on the wind inlet channel 3 of generator near rotor 6 places, is convenient to accurately control EAT and humidity; The exhaust of hot air door 16 that manhole 8 changes the outfit and can open and close.When air cooled generator replenishes the cooling device use; The cold air that cold air manufacturing equipment 11 produces is sent into wind-supplying mouth 9 through cool-air duct 14 by forced draft fan 12, and original cold air mixes in the cold air that replenishes and the aerial cooler 10 below air compartments, is sent to electricity generator stator coil 5 places by wind inlet channel 3; Get into air-out air channel 4 with stator coil 5 through becoming hot-air after the exchange heat; Wherein part is discharged by manhole 8, and remainder flow to aerial cooler 10 places, through with aerial cooler 10 in the cooling water heat-shift become cold air; Get into aerial cooler below air compartment, so circulation.
As the another kind of execution mode of the utility model, described cold air manufacturing equipment can be a floor air conditioner.Like this than being easier to buying, the suitable popularization.
As the another kind of execution mode of the utility model, adorn a filtering type inlet box 13 at the air inlet place of said air conditioner, be provided with many filter screens in the filtering type inlet box 13, can guarantee like this to produce clean cold air, thus protection equipment.
As the another kind of execution mode of the utility model, generator air intake thermohygrometer 15 is two, is installed on respectively on the both sides wind inlet channel 3 of generator near rotor 6 places, is convenient to accurately control EAT and humidity
Those of ordinary skill in the art should be realized that; Above-mentioned just explaining to the utility model preferred embodiment; And be not the qualification to this utility model; Every in the essential scope of the utility model, all will fall within the protection range of the utility model variation, the modification of above embodiment.
Claims (4)
1. the additional cooling device of an air cooled generator; Comprise: air cooled generator; Described air cooled generator comprises electric generator casing (1) and air compartment (2); Be provided with stator coil (5), rotor (6) in the casing (1); Be provided with aerial cooler (10), wind inlet channel (3), air-out air channel (4) in the air compartment (2), air compartment (2) shell and corresponding section, air-out air channel (4) have manhole (8), have wind-supplying mouth (9) with corresponding section, aerial cooler (10) below on air compartment (2) shell; Wind inlet channel (3) is positioned at the below of both sides rotor (6); Wind inlet channel (3) is connected with wind-supplying mouth (9), it is characterized in that: described additional cooling device also comprises cold air manufacturing equipment (11), cool-air duct (14), forced draft fan (12), generator air intake thermohygrometer (15), and cold air manufacturing equipment (11) is installed on the outside of air cooled generator; One end of said cool-air duct (14) is connected with the air outlet of cold air manufacturing equipment (11); The other end is connected with wind-supplying mouth (9), and described forced draft fan (12) is installed in the cool-air duct (14) and locates near wind-supplying mouth (9), and the cold air that cold air manufacturing equipment (11) produces is sent into wind-supplying mouth (9) through cool-air duct (14) by forced draft fan (12); Described generator air intake thermohygrometer (15) is installed on the wind inlet channel (3) of generator and upward locates near rotor (6); Described manhole (8) is equipped with the exhaust of hot air door (16) that can open and close.
2. the additional cooling device of air cooled generator according to claim 1, it is characterized in that: described cold air manufacturing equipment is an air conditioner.
3. the additional cooling device of air cooled generator according to claim 2, it is characterized in that: the air inlet place of said air conditioner is provided with filtering type inlet box (13).
4. according to the additional cooling device of each described air cooled generator of claim 1 to 3, it is characterized in that: said generator air intake thermohygrometer (15) is two, is installed in respectively on the different wind inlet channel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287497 CN202602465U (en) | 2012-06-15 | 2012-06-15 | Supplementary cooling device of air cooling generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287497 CN202602465U (en) | 2012-06-15 | 2012-06-15 | Supplementary cooling device of air cooling generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202602465U true CN202602465U (en) | 2012-12-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220287497 Expired - Lifetime CN202602465U (en) | 2012-06-15 | 2012-06-15 | Supplementary cooling device of air cooling generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202602465U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751817A (en) * | 2012-06-15 | 2012-10-24 | 陈震 | Supplementary cooling device and supplementary cooling method of air-cooling power generator |
| CN107925311A (en) * | 2015-08-31 | 2018-04-17 | 三菱电机株式会社 | Electric rotating machine |
-
2012
- 2012-06-15 CN CN 201220287497 patent/CN202602465U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751817A (en) * | 2012-06-15 | 2012-10-24 | 陈震 | Supplementary cooling device and supplementary cooling method of air-cooling power generator |
| CN107925311A (en) * | 2015-08-31 | 2018-04-17 | 三菱电机株式会社 | Electric rotating machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DYNAGREEN ENVIRONMENTAL PROTECTION GROUP CO., LTD. Free format text: FORMER OWNER: CHEN ZHEN Effective date: 20130827 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 314412 JIAXING, ZHEJIANG PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130827 Address after: 518000, Shenzhen, Guangdong Nanshan District 12 South Road, No. 7 Jiuzhou building, two floor, northeast building Patentee after: Dynagreen Environmental Protection Group Co., Ltd. Address before: No. 888 Guo Dian Guan Zhen Haining salt tide Avenue in Jiaxing city of Zhejiang province in 314412 Patentee before: Chen Zhen |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |