CN211830477U - Evaporative cooling equipment applied to wind driven generator - Google Patents
Evaporative cooling equipment applied to wind driven generator Download PDFInfo
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- CN211830477U CN211830477U CN202020347107.4U CN202020347107U CN211830477U CN 211830477 U CN211830477 U CN 211830477U CN 202020347107 U CN202020347107 U CN 202020347107U CN 211830477 U CN211830477 U CN 211830477U
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Abstract
The utility model discloses a be applied to aerogenerator's evaporative cooling equipment aims at providing one kind and can be in the condition that does not influence the cooling effect, and effectual solution present aerogenerator's cooling equipment breaks down easily, and influences the evaporative cooling equipment of the problem of aerogenerator's normal work. It includes: the radiator is arranged on the outer side of the engine room shell of the wind driven generator and comprises a radiator shell, an air storage chamber positioned at the top of the radiator shell, a liquid collecting chamber positioned at the bottom of the radiator shell and a plurality of radiating channels for connecting the air storage chamber and the liquid collecting chamber; the cold plate is used for cooling the heating device and comprises a cooling cavity arranged in the cold plate and a steam cavity positioned at the top of the cold plate, the steam cavity is communicated with the cooling cavity, and the cooling cavity is filled with a refrigerant; the radiator is higher than the cold plate, the gas storage chamber is connected with the steam cavity through a steam pipeline, and the liquid collection chamber is connected with the liquid storage cavity through a liquid reflux pipeline.
Description
Technical Field
The utility model relates to a cooling arrangement, concretely relates to be applied to aerogenerator's evaporative cooling equipment.
Background
The wind power generator is an electric power device which converts wind energy into mechanical work, and the mechanical work drives a rotor to rotate so as to finally output alternating current. Wind power generators generally comprise: towers, wind wheels, generators, gearboxes, cooling equipment, controllers, etc., wherein the generators, controllers, gearboxes, etc., are disposed within the nacelle. During the operation of the wind turbine, a heat generating device (e.g., a generator) of the wind turbine generates a large amount of heat, and thus a cooling device is required to cool the heat generating device to ensure the normal operation of the heat generating device. Current aerogenerator generally adopts the mode of forced air cooling or liquid cooling to cool off, and wherein, the forced air cooling mode needs fan etc. and the liquid cooling mode needs fan and pump etc. and fan and pump break down easily in long-term use, and aerogenerator's cooling arrangement installs at the tower top, and the not only maintenance of cooling arrangement trouble is changed the difficulty, is difficult in addition in time to be discover, influences aerogenerator's normal work easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can be in the condition that does not influence the cooling effect, effectual solution present aerogenerator's cooling arrangement breaks down easily, and the evaporation cooling equipment who is applied to aerogenerator of the problem of influence aerogenerator's normal work.
The technical scheme of the utility model is that:
an evaporative cooling apparatus for use with a wind generator, comprising: the radiator is arranged on the outer side of the engine room shell of the wind driven generator and comprises a radiator shell, an air storage chamber positioned at the top of the radiator shell, a liquid collecting chamber positioned at the bottom of the radiator shell and a plurality of radiating channels for connecting the air storage chamber and the liquid collecting chamber; the cold plate is fixed on a heating device of the wind driven generator and used for cooling the heating device, and comprises a cooling cavity arranged in the cold plate and a steam cavity positioned at the top of the cold plate, the steam cavity is communicated with the cooling cavity, and a refrigerant is filled in the cooling cavity; the radiator is higher than the cold plate, the gas storage chamber is connected with the steam cavity through a steam pipeline, and the liquid collection chamber is connected with the liquid storage cavity through a liquid return pipeline.
During the working process of the heating device, the refrigerant in the cold plate absorbs the heat generated by the heating device, so that part of the refrigerant in the cold plate is changed into a gaseous state from a liquid state, the gaseous refrigerant upwards enters the gas storage chamber through the steam pipeline, then the gaseous refrigerant is radiated through the radiator, the gaseous refrigerant is condensed into the liquid refrigerant in the radiating channel and is gathered in the liquid collecting chamber, and the liquid refrigerant in the liquid collecting chamber flows back to the cooling chamber through the liquid backflow pipeline under the action of gravity. Because the radiator is arranged at the outer side of the cabin shell, the characteristic that the wind driven generator is arranged in the environment of wind power resources and the cabin of the wind driven generator is arranged in the low-temperature environment of high altitude is fully utilized, the heat exchange is carried out between the radiator and the gaseous refrigerant through the high wind power and high-altitude low-temperature environment, so that the gaseous refrigerant can be rapidly condensed into the liquid refrigerant in the heat dissipation channel and then flows back to the cooling cavity of the cold plate, the cyclic utilization of the refrigerant in the evaporative cooling equipment is ensured, and the continuous cooling effect of the cooling equipment is ensured; more importantly, so, pump and be used for radiating fan in the pipeline have been saved among the evaporative cooling equipment of this scheme to effectively solve fan and pump and break down easily in long-term use, and aerogenerator's cooling arrangement installs at the tower top, and the cooling arrangement trouble is not only maintained and is changed the difficulty, and difficult quilt in time discovers in addition, influences aerogenerator's normal work's problem easily.
Preferably, the boiling point of the cooling medium is equal to or lower than the upper limit temperature set by the heat generating device. So, when the temperature of the device that generates heat is close or reaches the upper limit temperature, the refrigerant will evaporate the heat absorption rapidly to the temperature of the device that will generate heat rapidly, in order to avoid the device that generates heat to be in the work under the upper limit temperature, thereby guarantee the normal work of the device that generates heat.
Preferably, the radiator is mounted on the outer top of the nacelle housing. Therefore, the height of the radiator can be higher than that of the cold plate.
Preferably, the cooling cavity comprises a liquid storage cavity positioned at the bottom of the cold plate and a plurality of cooling channels connecting the liquid storage cavity and the steam cavity.
Preferably, the wind power generation system further comprises an adaptive diversion wind collecting device, the adaptive diversion wind collecting device is installed on the outer side of the cabin shell, and is located between a wind wheel and a radiator of the wind power generator, and the adaptive diversion wind collecting device comprises: the bracket is arranged on the cabin shell; the two vertical shaft levers are fixed on the bracket; the self-adaptive wind collecting channel is arranged on the vertical shaft rod in a one-to-one corresponding mode, a space between the two vertical wind guiding plates forms a self-adaptive wind collecting channel, one end of the self-adaptive wind collecting channel is opened towards a wind wheel of the wind driven generator, and the other end of the self-adaptive wind collecting channel is opened towards the radiator; the two inner limiting blocks are fixed on the support and positioned between the two vertical air deflectors, the inner limiting blocks correspond to the vertical air deflectors one by one, and the inner limiting blocks are used for limiting the rotating angles of the corresponding vertical air deflectors; the two outer limiting blocks are fixed on the support, the two vertical air deflectors are positioned between the two outer limiting blocks, the outer limiting blocks correspond to the vertical air deflectors one by one, and the outer limiting blocks are used for limiting the rotating angles of the corresponding vertical air deflectors; the elastic pieces are in one-to-one correspondence with the vertical air deflectors and are used for providing elastic force to drive the corresponding vertical air deflectors to rotate towards the corresponding inner limiting blocks; when the two vertical air deflectors abut against the corresponding inner limiting blocks, the width of the self-adaptive air collecting channel is gradually reduced from the wind wheel to the direction of the radiator, and the included angle between the two vertical air deflectors is larger than 20 degrees; when the two vertical air deflectors abut against the corresponding outer limiting blocks, the width of the self-adaptive air collecting channel is gradually reduced from the wind wheel to the direction of the radiator, and the included angle between the two vertical air deflectors is smaller than 5 degrees.
Although the radiator is positioned in an area with rich wind power resources, the wind power is still small in some cases, and the small wind power is not beneficial to heat dissipation and cooling of the radiator and can influence the normal work of the evaporative cooling equipment; in order to solve the problem, the utility model firstly adopts the wind collecting cover directly arranged in front of the radiator to improve the wind power at the radiator, so that the problem of heat dissipation and cooling of the radiator when the wind power is small can be solved; however, when the wind power is high, the wind power is further enhanced by installing the wind gathering cover, so that the shaking of the radiator is easily caused, and the structural stability of the radiator is influenced. In order to improve the wind power at the radiator by gathering wind when the wind power is small, thereby improving the heat dissipation and cooling effects of the radiator to ensure the normal work of influencing evaporative cooling; meanwhile, the wind gathering effect can be relieved when the wind power is high, so that the influence of the overlarge wind power on the structural stability of the radiator is avoided; according to the scheme, the self-adaptive flow guide and wind collection device is arranged, when wind power is low, the elastic piece drives the corresponding vertical wind deflectors to rotate towards the corresponding inner limiting blocks, the two vertical wind deflectors abut against the corresponding inner limiting blocks, at the moment, the width of a self-adaptive wind collection channel is gradually reduced from a wind wheel to the direction of a radiator, and the included angle between the two vertical wind deflectors is larger than 20 degrees, so that a good wind collection effect can be achieved, the wind power at the position of the radiator is improved, the heat dissipation and cooling effects of the radiator are improved, and the normal work of evaporative cooling is guaranteed to be influenced; when wind power is gradually increased, when acting force on the vertical air deflectors exceeds elastic force provided by the elastic piece, the vertical air deflectors rotate around the vertical shaft rod, the included angle between the two vertical air deflectors is reduced until the two vertical air deflectors are abutted to the corresponding outer limiting blocks, and the included angle between the two vertical air deflectors is smaller than 5 degrees, so that the wind gathering effect of the self-adaptive flow guide wind gathering device is equivalently relieved, and the influence on the structural stability of the radiator due to overlarge wind power is avoided.
Preferably, the two vertical air deflectors are symmetrically distributed.
Preferably, the elastic member is a torsion spring.
Preferably, the outer wall of the heat dissipation channel is provided with a plurality of heat dissipation fins. The heat generated in the process of condensing the gaseous refrigerant into the liquid refrigerant in the heat dissipation channel is conducted to the heat dissipation fins on the outer wall through the heat dissipation channel to carry out air convection heat dissipation, so that the heat dissipation efficiency is improved.
Preferably, the material of the cold plate has a thermal conductivity of 150W/mk or greater. Therefore, the high heat conductivity of the cold plate can be utilized to quickly conduct the heat on the surface of the cold plate to cool the inner wall of the cooling cavity so as to exchange heat with the refrigerant.
The utility model has the advantages that: the problem that the normal work of the wind driven generator is influenced due to the fact that the cooling equipment of the existing wind driven generator is prone to failure under the condition that the cooling effect is not influenced is solved.
Drawings
Fig. 1 is a schematic structural diagram of an evaporative cooling apparatus applied to a wind turbine according to a first embodiment of the present invention.
Fig. 2 is a schematic diagram of a cold plate according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an evaporative cooling apparatus applied to a wind turbine according to a second embodiment of the present invention.
Fig. 4 is a partial structural schematic view of an evaporative cooling apparatus applied to a wind turbine according to a fourth embodiment of the present invention.
Fig. 5 is a top view of the vertical air guiding plate in the fourth embodiment of the present invention when the vertical air guiding plate abuts against the corresponding inner limiting block.
Fig. 6 is a top view of the vertical air guiding plate in the fourth embodiment of the present invention when the vertical air guiding plate is abutted on the corresponding outer limiting block.
In the figure:
the heat dissipation device comprises a radiator 1, a partition plate 1.0, an air storage chamber 1.1, a liquid collection chamber 1.2 and a heat dissipation channel 1.3;
a nacelle housing 2;
a cold plate 3, a steam cavity 3.1, a liquid storage cavity 3.2 and a cooling channel 3.3;
a steam pipe 4;
a liquid return line 5;
self-adaptation water conservancy diversion wind-collecting device 6, support 6.1, vertical axostylus axostyle 6.2, vertical aviation baffle 6.3, self-adaptation wind-collecting channel 6.4, interior stopper 6.5, outer stopper 6.6.
Detailed Description
To make the objects, technical solutions and advantages of embodiments of the present invention clearer, the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present solution, and are not construed as limiting the present solution.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "a plurality" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The first embodiment is as follows: as shown in fig. 1, an evaporative cooling apparatus for a wind turbine includes a heat sink 1 and a cold plate 3. The radiator is arranged on the outer side of an engine room shell 2 of the wind driven generator and comprises a radiator shell, an air storage chamber 1.1 positioned at the top of the radiator shell, a liquid collection chamber 1.2 positioned at the bottom of the radiator shell and a plurality of radiating channels 1.3 for connecting the air storage chamber and the liquid collection chamber. The cold plate is fixed on a heating device of the wind driven generator and used for cooling the heating device. The cold plate 3 comprises a cooling chamber arranged within the cold plate and a steam chamber 3.1 located at the top of the cold plate. The steam cavity is communicated with the cooling cavity. The cooling cavity is filled with a refrigerant. The height of the radiator is higher than that of the cold plate. The air storage chamber is connected with the steam cavity through a steam pipeline 4. The liquid collecting chamber is connected with the liquid storage cavity through a liquid return pipeline 5. The cold plate in this embodiment is one piece.
During the working process of the heating device, the refrigerant in the cold plate absorbs the heat generated by the heating device, so that part of the refrigerant in the cold plate is changed into a gaseous state from a liquid state, the gaseous refrigerant upwards enters the gas storage chamber through the steam pipeline, then the gaseous refrigerant is radiated through the radiator, the gaseous refrigerant is condensed into the liquid refrigerant in the radiating channel and is gathered in the liquid collecting chamber, and the liquid refrigerant in the liquid collecting chamber flows back to the cooling chamber through the liquid backflow pipeline under the action of gravity. Because the radiator is arranged at the outer side of the cabin shell, the characteristic that the wind driven generator is arranged in the environment of wind power resources and the cabin of the wind driven generator is arranged in the low-temperature environment of high altitude is fully utilized, the heat exchange is carried out between the radiator and the gaseous refrigerant through the high wind power and high-altitude low-temperature environment, so that the gaseous refrigerant can be rapidly condensed into the liquid refrigerant in the heat dissipation channel and then flows back to the cooling cavity of the cold plate, the cyclic utilization of the refrigerant in the evaporative cooling equipment is ensured, and the continuous cooling effect of the cooling equipment is ensured; more importantly, so, pump and be used for radiating fan in the pipeline have been saved among the evaporative cooling equipment of this scheme to effectively solve fan and pump and break down easily in long-term use, and aerogenerator's cooling arrangement installs at the tower top, and the cooling arrangement trouble is not only maintained and is changed the difficulty, and difficult quilt in time discovers in addition, influences aerogenerator's normal work's problem easily.
In this embodiment, the heating device is an IGBT module of a generator or a wind turbine.
Further, as shown in fig. 2, the cooling chamber includes a liquid storage chamber 3.2 located at the bottom of the cold plate and a plurality of cooling channels 3.3 connecting the liquid storage chamber and the steam chamber.
Furthermore, the boiling point of the refrigerant is less than or equal to the upper limit temperature set by the heating device. So, when the temperature of the device that generates heat is close or reaches the upper limit temperature, the refrigerant will evaporate the heat absorption rapidly to the temperature of the device that will generate heat rapidly, in order to avoid the device that generates heat to be in the work under the upper limit temperature, thereby guarantee the normal work of the device that generates heat. For example, when the heating device is an IGBT module of the force generator, the upper limit temperature of the IGBT module is generally 85 degrees, and at this time, the refrigerant may be alcohol, and of course, other refrigerants having a boiling point less than 85 degrees may be selected.
Further, the radiator is mounted on the outer top of the nacelle housing. Therefore, the height of the radiator can be higher than that of the cold plate.
Furthermore, the outer wall of the heat dissipation channel is provided with a plurality of heat dissipation fins. Therefore, heat generated in the process of condensing the gaseous refrigerant into the liquid refrigerant in the heat dissipation channel is conducted to the heat dissipation fins on the outer wall through the heat dissipation channel to carry out air convection heat dissipation, so that the heat dissipation efficiency is improved.
Further, the material of the cold plate has a thermal conductivity of 150W/mk or more, for example, the material of the cold plate is pure aluminum or aluminum alloy or pure copper. Therefore, the high heat conductivity of the cold plate can be utilized to quickly conduct the heat on the surface of the cold plate to cool the inner wall of the cooling cavity so as to exchange heat with the refrigerant.
The second embodiment is as follows: the specific structure of this embodiment refers to the first embodiment, and the differences are as follows:
as shown in fig. 3, the number of cold plates 3 in the present embodiment is plural, for example, 2 or 3 or 4 or more, and the number of cold plates is determined according to the specific heat dissipation device. The cold plates shown in the figure are 3.
In this embodiment, a plurality of partition plates 1.0 are arranged in the radiator casing, and the partition plates divide the inner cavity of the radiator casing into a plurality of radiating cavities distributed side by side. The heat dissipation cavities correspond to the cold plates one by one. Each heat dissipation cavity comprises an air storage chamber positioned at the top of the radiator shell, a liquid collection chamber positioned at the bottom of the radiator shell and a plurality of heat dissipation channels for connecting the air storage chamber and the liquid collection chamber. Each cooling cavity is filled with a refrigerant. The steam cavity of the cold plate is connected with the gas storage chamber of the corresponding heat dissipation cavity through a steam pipeline. The liquid storage cavity of the cold plate is connected with the corresponding liquid collection chamber through a liquid return pipeline.
The third concrete embodiment: the specific structure of this embodiment refers to the first embodiment, and the differences are as follows:
the steam pipeline in this embodiment is provided with a pump. In this way, the refrigerant (including gaseous and liquid refrigerants) can be forced to circulate in the evaporative cooling equipment by the pump, so that the cooling effect of the evaporative cooling equipment is improved; on the other hand, although the pump is added, compared with the prior art, the scheme still omits the fan, so that the possibility that the cooling equipment is easy to break down can be reduced.
The fourth concrete embodiment: the specific structure of this embodiment refers to the first embodiment or the second embodiment, and the difference therebetween is that:
as shown in fig. 4, 5 and 6, the evaporative cooling device applied to the wind driven generator further comprises an adaptive diversion wind collecting device 6. The self-adaptive diversion wind collecting device is arranged on the outer side of the cabin shell and is positioned between a wind wheel and a radiator of the wind driven generator.
The self-adaptive flow guiding and wind collecting device comprises a support 6.1, two vertical shaft levers 6.2, two vertical air deflectors 6.3, two inner limiting blocks 6.5, two outer limiting blocks 6.6 and two elastic pieces. The bracket is mounted on the nacelle housing. Two vertical shaft levers are fixed on the bracket. The vertical air deflectors are vertically distributed. The vertical air deflectors correspond to the vertical shaft rods one by one. The vertical air deflectors are rotatably arranged on the vertical shaft rods in a one-to-one correspondence manner. In this embodiment, the front side of the vertical air deflector is rotatably disposed on the corresponding vertical shaft rod through the shaft sleeve. The space between two vertical aviation baffles forms self-adaptation wind channel 6.4 that gathers, and the one end opening of self-adaptation wind channel gathers wind towards aerogenerator's wind wheel, and the other end opening of self-adaptation wind channel gathers wind towards the radiator, specifically says so, the front end opening of self-adaptation wind channel gathers wind wheel towards aerogenerator, and the rear end opening of self-adaptation wind channel gathers wind towards the radiator. In this embodiment, the two vertical air deflectors are symmetrically distributed. Two inner limiting blocks are fixed on the support and positioned between the two vertical air deflectors. The inner limiting blocks correspond to the vertical air deflectors one to one, and the inner limiting blocks are used for limiting the rotating angles of the corresponding vertical air deflectors. Two outer limiting blocks are fixed on the support, and the two vertical air deflectors are arranged between the two outer limiting blocks. The outer limiting blocks correspond to the vertical air deflectors one by one, and the outer limiting blocks are used for limiting the rotating angles of the corresponding vertical air deflectors. Elastic component and vertical aviation baffle one-to-one, the elastic component is used for providing the elastic force and rotates toward the interior stopper direction that corresponds with vertical aviation baffle in order to drive, and in this embodiment, the elastic component is the torsional spring, and the torsional spring cover is established at the vertical axostylus axostyle that corresponds, and the one end of torsional spring supports on the support, and the other end of torsional spring supports on the vertical aviation baffle that corresponds.
As shown in fig. 5, when the two vertical air deflectors abut against the corresponding inner limiting blocks, the width of the self-adaptive air collecting channel is gradually reduced from the wind wheel to the direction of the radiator, and the included angle between the two vertical air deflectors is 20 degrees, 30 degrees, 40 degrees or 45 degrees.
As shown in fig. 6, when the two vertical air deflectors abut against the corresponding outer limiting blocks, the width of the self-adaptive air collecting channel is gradually reduced from the wind wheel to the direction of the radiator, and the included angle between the two vertical air deflectors is 5 degrees, 4 degrees, 3 degrees or 2 degrees.
Although the radiator is positioned in an area with rich wind power resources, the wind power is still small in some cases, and the small wind power is not beneficial to heat dissipation and cooling of the radiator and can influence the normal work of the evaporative cooling equipment; in order to solve the problem, the utility model firstly adopts the wind collecting cover directly arranged in front of the radiator to improve the wind power at the radiator, so that the problem of heat dissipation and cooling of the radiator when the wind power is small can be solved; however, when the wind power is high, the wind power is further enhanced by installing the wind gathering cover, so that the shaking of the radiator is easily caused, and the structural stability of the radiator is influenced. In order to improve the wind power at the radiator by gathering wind when the wind power is small, thereby improving the heat dissipation and cooling effects of the radiator to ensure the normal work of influencing evaporative cooling; meanwhile, the wind gathering effect can be relieved when the wind power is high, so that the influence of the overlarge wind power on the structural stability of the radiator is avoided; according to the scheme, the self-adaptive flow guide and wind collection device is arranged, when wind power is low, the elastic piece drives the corresponding vertical wind deflectors to rotate towards the corresponding inner limiting blocks, the two vertical wind deflectors abut against the corresponding inner limiting blocks, at the moment, the width of a self-adaptive wind collection channel is gradually reduced from a wind wheel to the direction of a radiator, and the included angle between the two vertical wind deflectors is larger than 20 degrees, so that a good wind collection effect can be achieved, the wind power at the position of the radiator is improved, the heat dissipation and cooling effects of the radiator are improved, and the normal work of evaporative cooling is guaranteed to be influenced; when wind power is gradually increased, when acting force on the vertical air deflectors exceeds elastic force provided by the elastic piece, the vertical air deflectors rotate around the vertical shaft rod, the included angle between the two vertical air deflectors is reduced until the two vertical air deflectors are abutted to the corresponding outer limiting blocks, and the included angle between the two vertical air deflectors is smaller than 5 degrees, so that the wind gathering effect of the self-adaptive flow guide wind gathering device is equivalently relieved, and the influence on the structural stability of the radiator due to overlarge wind power is avoided.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent transformation of doing above embodiment the utility model discloses technical scheme's protection scope.
Claims (9)
1. An evaporative cooling apparatus for a wind turbine, comprising:
the radiator is arranged on the outer side of the engine room shell of the wind driven generator and comprises a radiator shell, an air storage chamber positioned at the top of the radiator shell, a liquid collecting chamber positioned at the bottom of the radiator shell and a plurality of radiating channels for connecting the air storage chamber and the liquid collecting chamber;
the cold plate is fixed on a heating device of the wind driven generator and used for cooling the heating device, and comprises a cooling cavity arranged in the cold plate and a steam cavity positioned at the top of the cold plate, the steam cavity is communicated with the cooling cavity, and a refrigerant is filled in the cooling cavity;
the radiator is higher than the cold plate, the gas storage chamber is connected with the steam cavity through a steam pipeline, and the liquid collection chamber is connected with the liquid storage cavity through a liquid return pipeline.
2. The evaporative cooling apparatus for a wind turbine generator as claimed in claim 1, wherein during operation of the heat generating device, the refrigerant in the cold plate absorbs heat generated by the heat generating device, so that part of the refrigerant in the cold plate changes from liquid to gas, the gas refrigerant flows upwards into the air storage chamber through the vapor pipe, and then is dissipated through the heat sink, so that the gas refrigerant is condensed into liquid refrigerant in the heat dissipation channel and collected in the liquid collection chamber, and the liquid refrigerant in the liquid collection chamber flows back to the cooling chamber through the liquid return pipe under the action of gravity.
3. The evaporative cooling apparatus for a wind power generator as claimed in claim 1, wherein the boiling point of the cooling medium is equal to or lower than an upper limit temperature set by the heat generating device.
4. The evaporative cooling apparatus for a wind turbine as claimed in claim 1, 2 or 3, wherein the radiator is mounted to an outer top of the nacelle housing.
5. The evaporative cooling apparatus for a wind turbine according to claim 1, 2 or 3, wherein the cooling chamber comprises a liquid storage chamber located at the bottom of the cold plate and a plurality of cooling channels connecting the liquid storage chamber and the vapor chamber.
6. The evaporative cooling apparatus for wind power generator as claimed in claim 1, 2 or 3, further comprising an adaptive guiding wind collecting device, wherein the adaptive guiding wind collecting device is installed outside the nacelle housing and located between the wind wheel and the heat sink of the wind power generator, and the adaptive guiding wind collecting device comprises:
the bracket is arranged on the cabin shell;
the two vertical shaft levers are fixed on the bracket;
the self-adaptive wind collecting channel is arranged on the vertical shaft rod in a one-to-one corresponding mode, a space between the two vertical wind guiding plates forms a self-adaptive wind collecting channel, one end of the self-adaptive wind collecting channel is opened towards a wind wheel of the wind driven generator, and the other end of the self-adaptive wind collecting channel is opened towards the radiator;
the two inner limiting blocks are fixed on the support and positioned between the two vertical air deflectors, the inner limiting blocks correspond to the vertical air deflectors one by one, and the inner limiting blocks are used for limiting the rotating angles of the corresponding vertical air deflectors;
the two outer limiting blocks are fixed on the support, the two vertical air deflectors are positioned between the two outer limiting blocks, the outer limiting blocks correspond to the vertical air deflectors one by one, and the outer limiting blocks are used for limiting the rotating angles of the corresponding vertical air deflectors;
the elastic pieces are in one-to-one correspondence with the vertical air deflectors and are used for providing elastic force to drive the corresponding vertical air deflectors to rotate towards the corresponding inner limiting blocks;
when the two vertical air deflectors abut against the corresponding inner limiting blocks, the width of the self-adaptive air collecting channel is gradually reduced from the wind wheel to the direction of the radiator, and the included angle between the two vertical air deflectors is larger than 20 degrees;
when the two vertical air deflectors abut against the corresponding outer limiting blocks, the width of the self-adaptive air collecting channel is gradually reduced from the wind wheel to the direction of the radiator, and the included angle between the two vertical air deflectors is smaller than 5 degrees.
7. The evaporative cooling apparatus for a wind turbine according to claim 6, wherein the elastic member is a torsion spring.
8. The evaporative cooling apparatus for a wind turbine according to claim 1, 2 or 3, wherein the outer wall of the heat dissipation channel is provided with a plurality of heat dissipation fins.
9. The evaporative cooling apparatus for a wind turbine according to claim 1, 2 or 3, wherein the cold plate is made of a material having a thermal conductivity of 150W/mk or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020347107.4U CN211830477U (en) | 2020-03-18 | 2020-03-18 | Evaporative cooling equipment applied to wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020347107.4U CN211830477U (en) | 2020-03-18 | 2020-03-18 | Evaporative cooling equipment applied to wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211830477U true CN211830477U (en) | 2020-10-30 |
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ID=73012474
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020347107.4U Active CN211830477U (en) | 2020-03-18 | 2020-03-18 | Evaporative cooling equipment applied to wind driven generator |
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| Country | Link |
|---|---|
| CN (1) | CN211830477U (en) |
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2020
- 2020-03-18 CN CN202020347107.4U patent/CN211830477U/en active Active
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Address after: Room 702, building 3, no.371, Mingxing Road, Xiaoshan Economic and Technological Development Zone, Hangzhou, Zhejiang 311200 Patentee after: Xiangbo heat transfer technology Co.,Ltd. Address before: Room 702, building 3, No. 371, Mingxing Road, Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: XENBO (HANGZHOU) HEAT TRANSFER SCIENCE & TECHNOLOGY Co.,Ltd. |