CN114362443A - Direct cooler of wind driven generator - Google Patents
Direct cooler of wind driven generator Download PDFInfo
- Publication number
- CN114362443A CN114362443A CN202210037281.2A CN202210037281A CN114362443A CN 114362443 A CN114362443 A CN 114362443A CN 202210037281 A CN202210037281 A CN 202210037281A CN 114362443 A CN114362443 A CN 114362443A
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- CN
- China
- Prior art keywords
- air inlet
- air outlet
- cover
- air
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000005236 sound signal Effects 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 229920000742 Cotton Polymers 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/24—Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The direct cooler of the wind driven generator comprises a base, wherein an air inlet cover, a case and an air outlet cover are sequentially arranged on the base; a filtering component is arranged in the air inlet cover; the base is hollow, the top of the base is provided with a cold air inlet communicated with the air inlet cover, the bottom of the base is correspondingly provided with a cold air outlet, and the air inlet cover is provided with an air inlet; an impeller is arranged in the case, the impeller is connected with a motor arranged on the case and can be driven by the motor, correspondingly, a hot air channel penetrating through the base is arranged on the base and is communicated with the inside of the case, a hot air outlet is arranged on the side part of the case and is communicated with an air outlet cover, and an air outlet is arranged on the air outlet cover; an air inlet side noise sensor is arranged on the air inlet cover, and an air outlet side noise sensor is correspondingly arranged on the air outlet cover; during operation, the front and back states of the fan are monitored through sound signals, and whether the cooler should execute cleaning measures or not is judged after the signals are processed. The invention can judge the blockage of the cooler by monitoring the sound of the front side and the back side of the fan, thereby improving the controllability of the cooler.
Description
Technical Field
The invention relates to a cooling technology of a wind driven generator, in particular to a direct cooler of the wind driven generator.
Background
The wind driven generator usually adopts a totally enclosed air-cooled or air-cooled cooler to carry out heat dissipation and cooling on the wind driven generator, and at present, some manufacturers begin to abandon the scheme, and adopt a mode of directly cooling the generator by air.
The air is adopted to directly cool the generator, and the air is directly contacted with the generator and has no solid heat transfer resistance, so that the heat transfer efficiency is high. However, the direct cooler also has problems that when the ventilation duct of the cooler is blocked, no air flows, the cooling effect is lost, the fan driven by the cooler is seriously damaged, the direct cooler is blocked for a long time, and even the generator is possibly damaged or stopped.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides a direct cooler of a wind driven generator, when the direct cooler of the wind driven generator works, the generator is directly cooled by air, and the heat transfer efficiency is high; meanwhile, when the direct cooler of the wind driven generator works, the blockage degree of the cooler can be judged by monitoring the sound of the front side and the rear side of the fan, so that the controllability of the cooler is improved.
The technical scheme of the invention is as follows:
the direct cooler of the wind driven generator comprises a base, wherein an air inlet cover, a case and an air outlet cover are sequentially arranged on the base; a filtering component is arranged in the air inlet cover; the base is hollow, the top of the base is provided with a cold air inlet communicated with the air inlet cover, the bottom of the base is correspondingly provided with a cold air outlet, and the air inlet cover is provided with an air inlet, so that external air can enter the air inlet cover from the air inlet during working, and then enters the wind driven generator from the cold air outlet after being filtered; the wind driven generator is characterized in that an impeller is arranged in the case, the impeller is connected with a motor arranged on the case and can be driven by the motor, correspondingly, a hot air channel penetrating through the base is arranged on the base and is communicated with the inside of the case, a hot air outlet is arranged on the side part of the case and is communicated with an air outlet cover, and an air outlet is arranged on the air outlet cover, so that hot air in the wind driven generator can enter the case from the hot air channel and is finally discharged to the outside from the air outlet when the wind driven generator works; an air inlet side noise sensor is arranged on the air inlet cover, and an air outlet side noise sensor is correspondingly arranged on the air outlet cover; during operation, the sound signals of the air inlet side and the air outlet side of the fan are monitored, the difference value of the sound levels of the air outlet side and the air inlet side A is calculated, and compared with a threshold value, whether the cooler should execute a cleaning measure or not is judged.
Compared with the prior art, the direct cooler of the wind driven generator directly cools the wind driven generator directly by using air when in work, and the air inlet cover and the air outlet cover are respectively provided with the air inlet side noise sensor and the air outlet side noise sensor.
Further, in the direct cooler of the wind driven generator, a shutter is arranged on an air inlet of the air inlet cover. Through setting up the shutter at the air intake, can prevent on the one hand that big barrier from getting into the cooler, can also rain-proof water simultaneously, on the other hand can be used for setting up the initial value. Further, the louver is preferably an electric louver.
Further, in the direct cooler of wind driven generator, the filter assembly comprises a filter cotton support arranged on the base and filter cotton coated on the filter cotton support. This structure has the advantage of being easy to implement.
Further, in the direct cooler of the wind driven generator, an outlet of the hot air channel may be connected to the impeller through a wind collecting ring, and the wind collecting ring is formed by multiple circular arcs in a transition manner. And furthermore, the air collecting ring is inserted into an air inlet of the impeller by 5-8 mm. Therefore, the fan efficiency can be improved.
Further, in the direct cooler of the wind driven generator, a square connecting piece is arranged on an air outlet of the air outlet cover. Therefore, the hot air can be led to a designated place to be discharged by arranging an external pipeline. Still further, sound-absorbing cotton is arranged on the inner side of the circular outlet of the square-connection-circle connecting piece. The sound-absorbing cotton is arranged to reduce the noise of the outlet, so that the environment is facilitated, and the interference to the noise of the inlet caused by too large noise of the outlet is avoided.
Further, in the direct cooler of the wind driven generator, two cold air outlets are provided and are respectively located at two sides of the hot air channel. From this, during cold wind can get into the generator respectively from the both ends of generator, cools off it, and the cooling effect is good. Still further, the cold air outlet may be rectangular.
Further, in the direct cooler of the wind driven generator, the air inlet side noise sensors are arranged in groups along the width direction of the air inlet cover to form an array.
Further, in the direct cooler of the wind driven generator, the air outlet side noise sensors are arranged in groups along the width direction of the air outlet cover to form an array.
The noise sensors are arranged in groups to form an array, so that measurement errors caused by the adoption of a single sensor can be reduced.
Furthermore, in order to facilitate hoisting, in the direct cooler of the wind driven generator, the top of the case is provided with a hoisting ring.
Drawings
FIG. 1 is a schematic structural view of a wind turbine direct cooler of the present invention (embodiment);
FIG. 2 is a schematic bottom view of the cooler of FIG. 1;
FIG. 3 is a top plan view of the cooler of FIG. 1;
FIG. 4 is a sectional view taken along line A of the view in FIG. 3;
FIG. 5 is a diagram of the operating state of the direct cooler of the wind turbine of the present invention;
FIG. 6 is a schematic view of the air flow direction during operation of the direct cooler of the wind turbine of the present invention.
The labels in the figures are:
1-a base; 101-hot air channel; 102-a cold air inlet; 103-a cold air outlet; 2-air inlet cover; 3-a case; 4-air outlet cover; 5-an impeller; 6-noise sensor at air inlet side; 7-air outlet side noise sensor; 8-a shutter; 9-a filter cotton bracket; 10-wind collecting ring; 11-square connecting round connecting piece; 13-a hoisting ring; 14-generator base.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention. In the following examples, those not described in detail are conventional means or common technical knowledge in the art.
Referring to fig. 1-6, the direct cooler of the wind driven generator of the present invention comprises a base 1 (when in operation, the base 2 is fixedly connected with a generator base 13), wherein the base 1 is sequentially provided with an air inlet cover 2, a case 3 and an air outlet cover 4; a filtering component is arranged in the air inlet cover 2; the base 1 is hollow, the top of the base is provided with a cold air inlet 102 communicated with the air inlet cover 2, the bottom of the base is correspondingly provided with a cold air outlet 103, and the air inlet cover 2 is provided with an air inlet, so that external air can enter the air inlet cover 2 from the air inlet during working, and then enters the wind driven generator from the cold air outlet 103 after being filtered; an impeller 5 is arranged in the case 3, the impeller 5 is connected with a motor arranged on the case 3 and can be driven by the motor, correspondingly, a hot air channel 101 penetrating through the base 1 is arranged on the base 1, the hot air channel 101 is communicated with the inside of the case 3, a hot air outlet is arranged on the side part of the case 3 and is communicated with an air outlet cover 4, and an air outlet is arranged on the air outlet cover 4, so that hot air in the wind driven generator can enter the case 3 from the hot air channel 101 and is finally discharged to the outside from the air outlet when the wind driven generator works; an air inlet side noise sensor 6 is arranged on the air inlet cover 2, and correspondingly, an air outlet side noise sensor 7 is arranged on the air outlet cover 4 (when the air conditioner works, the air inlet side noise sensor 6 and the air outlet side noise sensor 7 transmit collected sound signals to the controller, and the controller performs data analysis); during operation, through monitoring the sound signals of the air inlet side and the air outlet side of the fan, the difference value of the A sound levels of the air outlet side and the air inlet side is calculated (the sensor can be arranged in a plurality of arrays, and the A sound level is the weighted average value of the A sound levels at the moment), and is compared with a threshold value to judge whether the cooler should execute a cleaning measure.
Example (see fig. 1-6):
in this embodiment, the air inlet of the air inlet cover 2 is provided with a shutter 8, and the shutter 8 is an electric shutter. The louver 8 can prevent rainwater and foreign matters from entering the cooler, and plays a role of protection, in the embodiment, the louver is also used for setting a threshold, and in the non-blocking state of the cooler, the louver 8 is opened by X%, and the monitored sound signal (the difference value of the sound levels of the air outlet side and the air inlet side A) is used as the threshold when the cooler is blocked by (100-X)%.
In this embodiment, the filter assembly includes the filter pulp support 9 arranged on the base 1 and the filter pulp coated on the filter pulp support 9.
In this embodiment, the outlet of the hot air channel 101 is connected with the impeller 5 through the wind collecting ring 10, and the wind collecting ring 10 is formed by multi-section arc transition; and the wind collecting ring 10 is inserted into an air inlet of the impeller by 5 mm.
In this embodiment, the air outlet of the air outlet housing 4 is provided with a square connecting piece 11. And sound absorption cotton is arranged on the inner side of the circular outlet of the square connecting round connecting piece 11.
In this embodiment, the two cold air outlets 103 are respectively located at two sides of the hot air channel 101. The cold air outlet 103 is rectangular.
In this embodiment, the noise sensors 6 on the air inlet side are grouped and arranged in an array along the width direction of the air inlet cover 2. The air outlet side noise sensors 7 are arranged in groups along the width direction of the air outlet housing 4 to form an array.
In this embodiment, the top of the case 3 is provided with a hoisting ring 13.
The cooler is in an optimal working state without any blockage when just delivered out of a factory. The user can define the degree of blockage according to the sound signals monitored when the louver 8 is in different states, and set a threshold value as a basis for judging the degree of blockage in the working process of the later-stage cooler.
In this embodiment, the difference between the weighted average value of the sound levels a of the noise sensors on the air inlet side and the weighted average value of the sound levels a of the noise sensors on the air outlet side is used as a physical quantity for quantifying the degree of blockage.
In this embodiment, three thresholds are set, which are as follows:
1. in the initial cooler on state, the shutter 8 is fully open;
A. reading the average value of the weighted A sound levels of the noise sensors at the air inlet side, and recording as X1;
B. reading the average value of the weighted A sound levels of the noise sensors on the wind outlet side, and recording as X2;
C. the threshold value X is defined as X2-X1 and is used as a reference basis for the cooler without any blockage.
2. The cooler operates with the shutter 8 fully closed, repeating step A, B, C;
A. reading the average value of the weighted A sound levels of the noise sensors at the air inlet side, and recording as Y1;
B. reading the average value of the weighted A sound levels of the noise sensors at the wind outlet side, and recording as Y2;
C. and defining a threshold value Y which is Y2-Y1 as a reference basis for the complete blockage of the cooler.
3. The cooler repeats step A, B, C with the louver 8 open by 20%;
A. reading the average value of the weighted A sound levels of the noise sensors at the air inlet side, and recording as Z1;
B. reading the average value of the weighted A sound levels of the noise sensors on the wind outlet side, and recording as Z2;
C. and defining a threshold value Z which is Z2-Z1 as a reference basis for 80% of cooler blockage.
In this embodiment, set Z as the warning signal threshold, during the cooler working process (the shutter is complete), when the difference between the weighted A sound level average value of the noise sensor on the air inlet side and the weighted A sound level average value of the noise sensor on the air outlet side reaches the warning signal threshold, trigger an alarm to remind the staff to clean the cooler in time. In the state that the alarm is not triggered, a user can call/check the monitored sound signals (the difference value of the weighted A sound level average value of the air inlet side noise sensor and the weighted A sound level average value of the air outlet side noise sensor), compare the monitored sound signals with a preset threshold value and judge the blockage degree of the cooler.
In the above embodiment, the state of the cooler at different clogging degrees is simulated by controlling the opening area of the louver 8, and the situation of the use environment site is fully considered by setting the threshold value in this way, so that the reliability is high. It should be noted that the user may preset the threshold value and the warning signal threshold value according to the actual situation of the user.
The above general description of the invention and the description of the specific embodiments thereof, as referred to in this application, should not be construed as limiting the technical solutions of the invention. Those skilled in the art can add, reduce or combine the technical features disclosed in the general description and/or the specific embodiments (including the examples) to form other technical solutions within the protection scope of the present application according to the disclosure of the present application without departing from the structural elements of the present invention.
Claims (12)
1. Direct cooler of aerogenerator, its characterized in that:
comprises a base (1), wherein an air inlet cover (2), a case (3) and an air outlet cover (4) are sequentially arranged on the base (1); a filtering component is arranged in the air inlet cover (2);
the base (1) is hollow, the top of the base is provided with a cold air inlet (102) communicated with the air inlet cover (2), the bottom of the base is correspondingly provided with a cold air outlet (103), and the air inlet cover (2) is provided with an air inlet, so that external air can enter the air inlet cover (2) from the air inlet and enter the wind driven generator from the cold air outlet (103) after being filtered during work;
an impeller (5) is arranged in the case (3), the impeller (5) is connected with a motor arranged on the case (3) and can be driven by the motor, correspondingly, a hot air channel (101) penetrating through the base (1) is arranged on the base (1), the hot air channel (101) is communicated with the interior of the case (3), a hot air outlet is formed in the side part of the case (3), the hot air outlet is communicated with the air outlet cover (4), and an air outlet is formed in the air outlet cover (4), so that hot air in the wind driven generator can enter the case (3) from the hot air channel (101) and is finally discharged to the outside from the air outlet during operation;
an air inlet side noise sensor (6) is arranged on the air inlet cover (2), and an air outlet side noise sensor (7) is correspondingly arranged on the air outlet cover (4); during operation, the sound signals of the air inlet side and the air outlet side of the fan are monitored, the difference value of the sound levels of the air outlet side and the air inlet side A is calculated, and compared with a threshold value, whether the cooler should execute a cleaning measure or not is judged.
2. Wind generator direct cooler according to claim 1, characterized in that: and a shutter (8) is arranged on the air inlet of the air inlet cover (2).
3. Wind generator direct cooler according to claim 2, characterized in that: the shutter (8) is an electric shutter.
4. Wind generator direct cooler according to claim 1, characterized in that: the filtering component comprises a filtering cotton support (9) arranged on the base (1) and filtering cotton coated on the filtering cotton support (9).
5. Wind generator direct cooler according to claim 1, characterized in that: the outlet of the hot air channel (101) is connected with the impeller (5) through a wind collecting ring (10), and the wind collecting ring (10) is formed by transition of multiple sections of circular arcs.
6. Wind generator direct cooler according to claim 5, characterized in that: the wind collecting ring (10) is inserted into an air inlet of the impeller by 5-8 mm.
7. Wind generator direct cooler according to claim 1, characterized in that: and a square-to-round connecting piece (11) is arranged on an air outlet of the air outlet cover (4).
8. Wind generator direct cooler according to claim 7, characterized in that: and sound absorbing cotton is arranged on the inner side of the circular outlet of the square connecting round connecting piece (11).
9. Wind generator direct cooler according to any of the claims 1-8, characterized in that: the two cold air outlets (103) are respectively positioned at two sides of the hot air channel (101).
10. Wind generator direct cooler according to claim 9, characterized in that: the cold air outlet (103) is rectangular.
11. Wind generator direct cooler according to any of the claims 1-10, characterized in that: the air inlet side noise sensors (6) are arranged in groups along the width direction of the air inlet cover (2) to form an array.
12. Wind generator direct cooler according to any of the claims 1-10, characterized in that: the air outlet side noise sensors (7) are arranged in groups along the width direction of the air outlet cover (4) to form an array.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210037281.2A CN114362443A (en) | 2022-01-13 | 2022-01-13 | Direct cooler of wind driven generator |
| PCT/CN2022/073152 WO2023133923A1 (en) | 2022-01-13 | 2022-01-21 | Direct cooler for wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210037281.2A CN114362443A (en) | 2022-01-13 | 2022-01-13 | Direct cooler of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114362443A true CN114362443A (en) | 2022-04-15 |
Family
ID=81109587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210037281.2A Pending CN114362443A (en) | 2022-01-13 | 2022-01-13 | Direct cooler of wind driven generator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114362443A (en) |
| WO (1) | WO2023133923A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117595563A (en) * | 2024-01-18 | 2024-02-23 | 湖南创一智能科技有限公司 | Motor air-air cooler |
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| JP2011044374A (en) * | 2009-08-24 | 2011-03-03 | Mitsubishi Electric Corp | Induction heating cooker |
| CN204652142U (en) * | 2015-06-08 | 2015-09-16 | 付志军 | A kind of energy-saving high-voltage motor cooler |
| CN105115119A (en) * | 2015-09-18 | 2015-12-02 | 珠海格力电器股份有限公司 | Fault detection method, device and equipment for air conditioning unit |
| CN206060429U (en) * | 2016-08-30 | 2017-03-29 | 浙江尔格科技股份有限公司 | A kind of cooler |
| CN108683285A (en) * | 2018-06-25 | 2018-10-19 | 浙江运达风电股份有限公司 | A kind of wind-driven generator of novel cooling manner |
| CN109347254A (en) * | 2018-10-31 | 2019-02-15 | 中车永济电机有限公司 | The directly cooling doubly-fed wind turbine of air |
| CN210371291U (en) * | 2019-07-29 | 2020-04-21 | 山西省安瑞风机电气股份有限公司 | Nanometer automatically cleaning ventilation blower |
| CN211557075U (en) * | 2020-03-12 | 2020-09-22 | 江苏兆胜科技股份有限公司 | 4.8MW high-power open-type air cooler |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5072994B2 (en) * | 2010-03-17 | 2012-11-14 | 三菱重工業株式会社 | Wind power generator |
| CN207123035U (en) * | 2017-09-07 | 2018-03-20 | 天津健智者行空调技术有限公司 | Air-conditioning filter net obstruction alarm device |
| CN209310574U (en) * | 2018-10-08 | 2019-08-27 | 江苏兆胜科技股份有限公司 | A kind of direct-drive permanent magnet wind power generator hollow cooler |
| CN111181315A (en) * | 2020-03-12 | 2020-05-19 | 江苏兆胜科技股份有限公司 | 4.8MW high-power open-type air cooler |
| CN113708567A (en) * | 2021-09-03 | 2021-11-26 | 浙江尔格科技股份有限公司 | Cooler for wind driven generator |
-
2022
- 2022-01-13 CN CN202210037281.2A patent/CN114362443A/en active Pending
- 2022-01-21 WO PCT/CN2022/073152 patent/WO2023133923A1/en unknown
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011044374A (en) * | 2009-08-24 | 2011-03-03 | Mitsubishi Electric Corp | Induction heating cooker |
| CN204652142U (en) * | 2015-06-08 | 2015-09-16 | 付志军 | A kind of energy-saving high-voltage motor cooler |
| CN105115119A (en) * | 2015-09-18 | 2015-12-02 | 珠海格力电器股份有限公司 | Fault detection method, device and equipment for air conditioning unit |
| CN206060429U (en) * | 2016-08-30 | 2017-03-29 | 浙江尔格科技股份有限公司 | A kind of cooler |
| CN108683285A (en) * | 2018-06-25 | 2018-10-19 | 浙江运达风电股份有限公司 | A kind of wind-driven generator of novel cooling manner |
| CN109347254A (en) * | 2018-10-31 | 2019-02-15 | 中车永济电机有限公司 | The directly cooling doubly-fed wind turbine of air |
| CN210371291U (en) * | 2019-07-29 | 2020-04-21 | 山西省安瑞风机电气股份有限公司 | Nanometer automatically cleaning ventilation blower |
| CN211557075U (en) * | 2020-03-12 | 2020-09-22 | 江苏兆胜科技股份有限公司 | 4.8MW high-power open-type air cooler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117595563A (en) * | 2024-01-18 | 2024-02-23 | 湖南创一智能科技有限公司 | Motor air-air cooler |
| CN117595563B (en) * | 2024-01-18 | 2024-04-02 | 湖南创一智能科技有限公司 | Motor air-air cooler |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023133923A1 (en) | 2023-07-20 |
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