CN107147248A - Generator heat-radiation recovery system - Google Patents
Generator heat-radiation recovery system Download PDFInfo
- Publication number
- CN107147248A CN107147248A CN201710289925.6A CN201710289925A CN107147248A CN 107147248 A CN107147248 A CN 107147248A CN 201710289925 A CN201710289925 A CN 201710289925A CN 107147248 A CN107147248 A CN 107147248A
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- China
- Prior art keywords
- heat
- air
- air channel
- generator
- recovery system
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention discloses a kind of generator heat-radiation recovery system, generator heat-radiation recovery system includes ventilator cowling and air channel, ventilator cowling is suitable to sealingly close generator, air channel is connected with the inside of ventilator cowling, air channel has air inlet, the first air outlet for air draft and for the second air outlet to the heat exchange space air-out with heat-exchange device, and wherein air inlet is arranged to optionally connect with one in the first air outlet and the second air outlet.According to the generator heat-radiation recovery system of the present invention, the heat that generator is produced can be supplied to heat-exchange device, and then heat-exchange device can improve the overall comprehensive energy efficiency coefficient of generator system with the water heat supply in feed pipe.
Description
Technical field
The present invention relates to a kind of generator heat-radiation recovery system.
Background technology
Operationally, generator frame can be distributed in substantial amounts of radiant heat, correlation technique generator in itself, and generator is located at
In ventilator cowling, operationally, the heat that generator is produced in ventilator cowling is direct from ventilator cowling is emitted into air for generator, by
This wastes energy, and the overall comprehensive energy efficiency coefficient of generator system is relatively low.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, the present invention is carried
Go out a kind of generator heat-radiation that can at least improve the overall comprehensive energy efficiency coefficient of generator system to a certain extent and reclaim system
System.
According to generator heat-radiation recovery system of the present invention, including ventilator cowling and air channel, the ventilator cowling is suitable to envelope
Generator is closed, the air channel is connected with the inside of the ventilator cowling, the air channel has air inlet, the first air-out for air draft
Mouthful and for the second air outlet to the heat exchange space air-out with heat-exchange device, wherein the air inlet is arranged to optional
Connected with one in first air outlet and second air outlet to selecting property.
According to generator heat-radiation recovery system of the present invention, the heat that generator is produced can supply heat exchange dress
Put, and then heat-exchange device can improve the overall comprehensive energy efficiency coefficient of generator system with the water heat supply in feed pipe.
Generator heat-radiation recovery system described according to some embodiments of the invention, the air channel includes main air duct, first
Branch air channel and the second branch air channel, first branch air channel and second branch air channel connect with the main air duct
Logical, the main air duct is upwardly extended from the ventilator cowling, and the free end in first branch air channel is formed as first air-out
Mouthful, the second air outlet formation is on second branch air channel.
Thus personnel are in the water in needing heat-exchange device heating pipe, can open the second branch air channel and close the
One branch air channel, when personnel are freezed without heat-exchange device or using heat-exchange device to water, can open the first branch air channel
And close the second branch air channel.
Further, second branch air channel is located at the top of the heat-exchange device, and second air outlet position
In on the lower wall surface in second branch air channel.Thus hot-air can blow to heat exchange dress downwards from the top of heat-exchange device
Put, prevent the second branch air channel is located at below the heat-exchange device from causing tube wall of the heat directly by the second branch air channel
Heat-exchange device is transferred to, the heat exchange efficiency of hot-air and heat-exchange device is improved.
Further, generator heat-radiation recovery system also includes the first on-off system and the second on-off system, described first
On-off system is arranged for separating or connects the main air duct and first branch air channel, and second on-off system is set
Into for separating or connecting the main air duct and second branch air channel.
Thus personnel can open second in the water in needing heat-exchange device heating pipe by the second on-off system
The first branch air channel is simultaneously closed in branch air channel by the first on-off system, and personnel are without heat-exchange device or utilize heat-exchange device
When freezing to water, the first branch air channel can be opened by the first on-off system and the second branch is closed by the second on-off system
Air channel.
Further, first on-off system and second on-off system are motor-driven valve.Thus, the first break-make
Device and the second on-off system can be opened and closed automatically, personnel using the first on-off system and the second on-off system when more
Plus conveniently.
Generator heat-radiation recovery system described according to some embodiments of the invention, the heat exchange space has opening,
The adjustable thermal insulation board of state is provided with the opening to change the aperture of the opening.Thus, when without using heat-exchange device
Or when freezing using heat-exchange device to water, opening open in order to the heat in heat exchange space can be passed through opening as early as possible
Ambient atmosphere is diffused to, when needing to use heat-exchange device, closure of openings can be avoided to the heat in heat exchange space
Effusion, is easy to heat-exchange device to absorb heat.
Further, the thermal insulation board is folding telescopic thermal insulation board.Thus, personnel can be by folding and deploying heat-insulated
Plate is conveniently adjusted the aperture of opening.
Further, the second air outlet on second branch air channel is multiple and along second branch air channel
Length direction is spaced apart, and multiple second air outlets are suitable to fill with multiple heat exchanges below second branch air channel
Put interlaced arrangement.Thus, it is possible to prevent the thermal current in the second air outlet just to blowing to heat-exchange device, it is ensured that heat exchange space
Interior gas temperature is more evenly distributed, and improves the overall heat exchange efficiency of heat-exchange device.
Further, it is provided with blower fan in the main air duct.Thus, it is possible to make hot-air in ventilator cowling quickly from
Main air duct is blown out, it is ensured that in ventilator cowling there is relatively low temperature to make generator normal work.
Further, the heat exchange space, which has, is provided with folding telescopic thermal insulation board at opening, the opening, wherein
The generator heat-radiation recovery system has the first running status and the second running status, in the generator heat-radiation recovery system
During in first running status, first on-off system is opened, and second on-off system is closed, the folding retractable
Formula thermal insulation board be contraction state to open wide the opening, in the generator heat-radiation recovery system in second running status
When, first on-off system is closed, and second on-off system is opened, the folding telescopic thermal insulation board be deployed condition with
The opening is covered at least in part.
Thus, when the temperature of ambient atmosphere is higher, generator heat-radiation recovery system can be located at the first running status, drop
The temperature of low-heat swapace, so as to reduce the heat-exchange temperature of heat-exchange device, now heat-exchange device can be in water pipe
Water refrigeration.When the temperature of ambient atmosphere is relatively low, generator heat-radiation recovery system can be located at the second running status, rise heat
The temperature of swapace, so as to increase the heat-exchange temperature of heat-exchange device, now heat-exchange device can be to the water in water pipe
Heat.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the structural representation of the generator heat-radiation recovery system of the embodiment of the present invention.
Reference：
Generator heat-radiation recovery system 100, ventilator cowling 1, air channel 2, main air duct 21, air inlet 211, blower fan 212, first point
Branch air duct 22, the first air outlet 221, the first on-off system 222, the second branch air channel 23, the second air outlet 231, the second break-make
Device 232, generator 3, heat exchange space 4, thermal insulation board 41, heat-exchange device 42, energy station 5, user 20, softening water tank
30, water pipe 40.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In the description of the invention, it is to be understood that the instruction such as term " on ", " under ", " vertical ", " interior ", " outer "
Orientation or position relationship are, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and simplification is retouched
State, rather than indicate or imply that the device or element of meaning there must be specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that at least two, such as two
It is individual, three etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate with one another；Can be joined directly together, can also be indirectly connected to by intermediary, can
To be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art,
The concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
The present invention is described below in conjunction with the accompanying drawings and with reference to specific embodiment.
The generator heat-radiation recovery system 100 of the embodiment of the present invention is described with reference to Fig. 1 first.
As shown in figure 1, the generator heat-radiation recovery system 100 of the embodiment of the present invention can include ventilator cowling 1 and air channel 2,
Ventilator cowling 1 can be with closed generator 3, and to protect the normal work in ventilator cowling 1 of generator 3, air channel 2 can have air inlet
211st, the first air outlet 221 and the second air outlet 231, air channel 2 can be connected by air inlet 211 with the inside of ventilator cowling 1, from
And the heat produced during the work of generator 3 can be discharged in air channel 2 from ventilator cowling 1 in time.
Can be with as shown in figure 1, generator heat-radiation recovery system 100 can have heat exchange space 4, in heat exchange space 4
Heat-exchange device 42 is placed, hot-air directly can be discharged ambient atmosphere by the first air outlet 221, the second air outlet 231 can be with
Hot-air is blowed into heat exchange space 4, so as to the heat supply of heat-exchange device 42.Water pipe 40 can wear heat-exchange device 42, from
And heat-exchange device 42 can be heated or freezed to the water in water pipe 40 using the air in heat exchange space 4, by adding
The water of heat or refrigeration can flow into user 20, softening water tank 30 or pre-heating system by water pipe 40.
Air inlet 211 can be connected optionally with one in the first air outlet 221 and the second air outlet 231.When
When personnel need to heat water using heat-exchange device 42, air inlet 211 can be connected with the second air outlet 231, thus, hair
The hot-air that the work of motor 3 is produced can blow to the second air outlet 231 by air inlet 211, and be blowed to from the second air outlet 231
Heat-exchange device 42.
, can be by air inlet when personnel are freezed without using heat-exchange device 42 or utilization heat-exchange device 42 to water
211 connect with the first air outlet 221, thus, and the hot-air that the work of generator 3 is produced can blow to first by air inlet 211
Air outlet 221, and ambient atmosphere is discharged from the first air outlet 221, so as to which the hot-air in ventilator cowling 1 is discharged in time.
Generator heat-radiation recovery system 100 according to embodiments of the present invention, by setting heat exchange space 4, and in heat friendship
Change and heat-exchange device 42 is set in space 4, the heat that generator 3 is produced when working can blow to heat-exchange device by air-flow
42, so that heat-exchange device 42 can be heated to the water of water pipe 40, improve the overall comprehensive energy efficiency coefficient of the system of generator 3.
In addition, generator heat-radiation recovery system 100 by make air inlet 211 optionally with the first air outlet 221 and
A connection in second air outlet 231, as personnel without using heat-exchange device 42 or using heat-exchange device 42 to water system
When cold, personnel can connect air inlet 211 with the first air outlet 221, thus, and the hot-air that the work of generator 3 is produced can be with
Directly blow to ambient atmosphere.
In some optional embodiments of the present invention, as shown in figure 1, air channel 2 includes main air duct 21, the first branch air channel
22 and the second branch air channel 23, the first branch air channel 22 and the second branch air channel 23 can be connected with main air duct 21, main wind
Road 21 can be upwardly extended from ventilator cowling 1.
As shown in figure 1, the free end in the first branch air channel 22 can be formed as the first air outlet 221, the second air outlet 231
It can be formed on the second branch air channel 23.Thus personnel are in the water in needing the heating pipe 40 of heat-exchange device 42, can be with
Open the second branch air channel 23 and close the first branch air channel 22, it is empty that hot-air can blow to heat exchange from the second air outlet 231
Between 4.When personnel are freezed without heat-exchange device 42 or using heat-exchange device 42 to water, the first branch air channel 22 can be opened simultaneously
The second branch air channel 23 is closed, hot-air can blow to ambient atmosphere from the first air outlet 221.
Further, as shown in figure 1, the second branch air channel 23 can be located at the top of heat-exchange device 42, and second goes out
Air port 231 can be located on the lower wall surface in the second branch air channel 23.Thus hot-air can be from the upper direction of heat-exchange device 42
Heat-exchange device 42 is blowed to from the second air outlet 231 lowerly, prevents the second branch air channel 23 to be located at the lower section of heat-exchange device 42
And cause heat to be directly transferred to heat-exchange device 42 by the tube wall in the second branch air channel 23, so as to prevent heat waste, carry
High heat exchange efficiency of the hot-air with heat-exchange device 42.
Further, as shown in figure 1, generator heat-radiation recovery system 100 is also logical including the first on-off system 222 and second
Disconnected device 232, the first on-off system 222 is arranged for separating or connects the branch air channel 22 of main air duct 21 and first, and first leads to
Disconnected device 222 can be located between the first air outlet 221 and main air duct 21, the second on-off system 232 be arranged for cut-off or
Connect main air duct 21 and second branch air channel 23, the second on-off system 232 can positioned at the second air outlet 231 and main air duct 21 it
Between.
Thus personnel can pass through the second on-off system 232 in the water in needing the heating pipe 40 of heat-exchange device 42
Open the second branch air channel 23 and the first branch air channel 22 is closed by the first on-off system 222, personnel are without heat-exchange device
42 or when freeze using heat-exchange device 42 to water, first branch air channel 22 and it can be led to by the unlatching of the first on-off system 222
Cross the second on-off system 232 and close the second branch air channel 23.
Further, as shown in figure 1, the first on-off system 222 and the second on-off system 232 are motor-driven valve.Thus,
First on-off system 222 and the second on-off system 232 can be opened and closed automatically by electric power, and personnel are using the first break-make
More facilitate when device 222 and the second on-off system 232.
In some embodiments specifically, as shown in figure 1, heat exchange space 4 can have opening, heat exchange space 4
It can be communicated by opening with ambient atmosphere, the adjustable thermal insulation board 41 of state can be provided with opening, by adjusting thermal insulation board 41
The aperture of opening can be changed.
Thus, when freezing without using heat-exchange device 42 or using heat-exchange device 42 to water, personnel can be adjusted
Thermal insulation board 41 by opening open in order to which the heat in heat exchange space 4 diffuses to ambient atmosphere by opening as early as possible, so as to drop
Temperature in low-heat swapace 4.When needing to use heat-exchange device 42, closure of openings can be avoided to heat exchange space
Heat effusion in 4, it is ensured that there is higher temperature in heat exchange space 4, be easy to heat-exchange device 42 to absorb heat.
Further, thermal insulation board 41 can be folding telescopic thermal insulation board 41.Thus, personnel can pass through folding heat-insulated plate
41 can easily open opening, and personnel can easily cover opening by deploying thermal insulation board 41.
Further, as shown in figure 1, multiple second air outlets 231, Duo Ge can be provided with the second branch air channel 23
Two air outlets 231 can be spaced apart along the length direction in the second branch air channel 23, and the lower section of the second air outlet 231 can be provided with many
Individual heat-exchange device 42, multiple second air outlets 231 can be with multiple interlaced arrangements of heat-exchange device 42.
Thus, it is possible to prevent the thermal current in the second air outlet 231 just to blowing to heat-exchange device 42, it is ensured that heat exchange is empty
Between gas temperature in 4 be more evenly distributed, improve the overall heat exchange efficiency of heat-exchange device 42.
Specifically, heat-exchange device 42 can be air source heat pump, and thus heat-exchange device 42 is more saved, heat utilization efficiency
It is higher.
Further, as shown in figure 1, can be provided with blower fan 212 in main air duct 21, blower fan 212 can be in air inlet
211 are nearby set.Thus, blower fan 212 can be such that the hot-air in ventilator cowling 1 is quickly blown out from main air duct 21, it is ensured that ventilation
In cover 1 there is relatively low temperature to make the normal work of generator 3.
Specifically, as shown in figure 1, energy station 5 can be provided between Heat Room and ventilator cowling 1, and air channel 2 can be worn vertically
If energy station 5.Thus the arrangement of generator heat-radiation recovery system 100 is more reasonable, and the heat for being easy to generator 3 to produce is upward
Side's discharge.
Further, as shown in figure 1, heat exchange space 4, which can have at opening, opening, can be provided with folding telescopic
Thermal insulation board 41, wherein generator heat-radiation recovery system 100 can have the first running status and the second running status.
When the temperature of ambient atmosphere is higher (such as when positioned at summer), generator heat-radiation recovery system 100 can be located at
First running status, the first on-off system 222 can be opened, and the second on-off system 232 can be closed, the heat that generator 3 is produced
Amount can discharge ambient atmosphere by the first air outlet 221, and the thermal insulation board 41 of folding telescopic can open wide for contraction state
Opening, so as to reduce the temperature in heat exchange space 4, and then reduces the heat-exchange temperature of heat-exchange device 42, now heat exchange
Device 42 can freeze to the water in water pipe 40, and now heat-exchange device 42 can also be closed.
When the temperature of ambient atmosphere is relatively low (such as when positioned at winter), generator heat-radiation recovery system 100 can be located at
Second running status, the second on-off system 232 can be opened, and the first on-off system 222 can be closed, the heat that generator 3 is produced
Amount can discharge heat exchange space 4 by the second air outlet 231, and folding telescopic thermal insulation board 41 is deployed condition with least partly
Ground masking opening, so as to raise the temperature in heat exchange space 4, and then increases the heat-exchange temperature of heat-exchange device 42, now hot
Switch 42 can be heated to the water in water pipe 40.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
What combined in an appropriate manner in one or more embodiments or example.In addition, those skilled in the art can say this
Not be the same as Example or example described in bright book are engaged and combined.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. a kind of generator heat-radiation recovery system, it is characterised in that including：
Ventilator cowling, the ventilator cowling is suitable to sealingly close generator；
Air channel, the air channel is connected with the inside of the ventilator cowling, and the air channel has air inlet, the first air-out for air draft
Mouthful and for the second air outlet to the heat exchange space air-out with heat-exchange device, wherein the air inlet is arranged to optional
Connected with one in first air outlet and second air outlet to selecting property.
2. generator heat-radiation recovery system according to claim 1, it is characterised in that the air channel includes main air duct, the
One branch air channel and the second branch air channel, first branch air channel and second branch air channel connect with the main air duct
Logical, the main air duct is upwardly extended from the ventilator cowling, and the free end in first branch air channel is formed as first air-out
Mouthful, the second air outlet formation is on second branch air channel.
3. generator heat-radiation recovery system according to claim 2, it is characterised in that second branch air channel is located at institute
The top of heat-exchange device is stated, and second air outlet is located on the lower wall surface in second branch air channel.
4. generator heat-radiation recovery system according to claim 2, it is characterised in that also include：First on-off system and
Second on-off system, first on-off system is arranged for separating or connects the main air duct and first branch wind
Road, second on-off system is arranged for separating or connects the main air duct and second branch air channel.
5. generator heat-radiation recovery system according to claim 4, it is characterised in that first on-off system and described
Second on-off system is motor-driven valve.
6. generator heat-radiation recovery system according to claim 1, it is characterised in that the heat exchange space, which has, opens
Mouthful, the adjustable thermal insulation board of state is provided with the opening to change the aperture of the opening.
7. generator heat-radiation recovery system according to claim 6, it is characterised in that the thermal insulation board is folding telescopic
Thermal insulation board.
8. generator heat-radiation recovery system according to claim 3, it is characterised in that on second branch air channel
Two air outlets are spaced apart for multiple and along second branch air channel length direction, and multiple second air outlets are suitable to and position
Multiple heat-exchange device interlaced arrangements below second branch air channel.
9. generator heat-radiation recovery system according to claim 2, it is characterised in that be provided with wind in the main air duct
Machine.
10. generator heat-radiation recovery system according to claim 5, it is characterised in that the heat exchange space, which has, opens
Mouthful, folding telescopic thermal insulation board is provided with the opening；
Wherein described generator heat-radiation recovery system has the first running status and the second running status；
When the generator heat-radiation recovery system is in first running status, first on-off system is opened, described
Second on-off system is closed, and the folding telescopic thermal insulation board is contraction state to open wide the opening；
When the generator heat-radiation recovery system is in second running status, first on-off system is closed, described
Second on-off system is opened, and the folding telescopic thermal insulation board is that deployed condition states opening with shelter at least in part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710289925.6A CN107147248A (en) | 2017-04-27 | 2017-04-27 | Generator heat-radiation recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710289925.6A CN107147248A (en) | 2017-04-27 | 2017-04-27 | Generator heat-radiation recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107147248A true CN107147248A (en) | 2017-09-08 |
Family
ID=59774894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710289925.6A Pending CN107147248A (en) | 2017-04-27 | 2017-04-27 | Generator heat-radiation recovery system |
Country Status (1)
| Country | Link |
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| CN (1) | CN107147248A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871780A (en) * | 2020-08-17 | 2020-11-03 | 翁璐 | Sand screening equipment for building |
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| CN202391597U (en) * | 2011-11-21 | 2012-08-22 | 成都美瑞科动力设备有限公司 | Waste heat recycling system of novel marsh gas power generator set |
| CN103353241A (en) * | 2013-06-26 | 2013-10-16 | 山东电力工程咨询院有限公司 | Closed type multichannel air cooling system realizing forced ventilation and cooling and working method |
| CN203747550U (en) * | 2013-10-29 | 2014-07-30 | 西门子公司 | Ventilation cover and electric motor employing same |
| CN203788097U (en) * | 2014-04-18 | 2014-08-20 | 大唐韩城第二发电有限责任公司 | Stator cooling water heat recovery system for generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749096A (en) * | 2008-12-10 | 2010-06-23 | 曼商用车辆奥地利股份公司 | Drive unit with cooling circuit and separate heat recovery circuit |
| CN201614509U (en) * | 2010-02-11 | 2010-10-27 | 广州市乐金洗染设备有限公司 | Novel energy-saving clothes dryer |
| CN202391597U (en) * | 2011-11-21 | 2012-08-22 | 成都美瑞科动力设备有限公司 | Waste heat recycling system of novel marsh gas power generator set |
| CN103353241A (en) * | 2013-06-26 | 2013-10-16 | 山东电力工程咨询院有限公司 | Closed type multichannel air cooling system realizing forced ventilation and cooling and working method |
| CN203747550U (en) * | 2013-10-29 | 2014-07-30 | 西门子公司 | Ventilation cover and electric motor employing same |
| CN203788097U (en) * | 2014-04-18 | 2014-08-20 | 大唐韩城第二发电有限责任公司 | Stator cooling water heat recovery system for generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871780A (en) * | 2020-08-17 | 2020-11-03 | 翁璐 | Sand screening equipment for building |
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Application publication date: 20170908 |