CN217825828U - Cooling system and centralized new forms of energy power conversion system - Google Patents
Cooling system and centralized new forms of energy power conversion system Download PDFInfo
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- CN217825828U CN217825828U CN202221903185.3U CN202221903185U CN217825828U CN 217825828 U CN217825828 U CN 217825828U CN 202221903185 U CN202221903185 U CN 202221903185U CN 217825828 U CN217825828 U CN 217825828U
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Abstract
The embodiment of the utility model provides a cooling system and centralized new forms of energy power conversion system. Wherein, this cooling system includes: a heat exchanger and at least two radiators; the radiator is positioned in a preset range of the equipment to be radiated; the heat exchanger is communicated with at least two radiators to realize heat interaction. The utility model discloses utilize a heat exchanger to carry out the heat absorption to two at least radiators, reduced heat exchanger quantity, can reduce the cooling system volume when guaranteeing the radiating efficiency.
Description
Technical Field
The utility model relates to a heat dissipation technical field especially relates to a cooling system and centralized new forms of energy power conversion system.
Background
In a container of the centralized new energy power conversion system, a power conversion device and a voltage conversion transformer are generally arranged. The power conversion equipment generates high-frequency switching loss and conduction loss in the power conversion process, the generated heat is increased along with the increase of the conversion power, the heat dissipation requirement of the high-power conversion equipment on a radiator is higher, and if the inverter of the new energy photovoltaic wind power generation system is the high-power-consumption power conversion equipment, the inverter is used as the radiator. The voltage conversion transformer is also a high-power-consumption power distribution device, and also has higher requirement on heat dissipation.
To meet the heat dissipation requirements of high power consumption power equipment, a heat sink is configured for the power equipment. If the radiator is an air-cooled radiator, the volume of the radiator accounts for about 25% of the volume of the total power equipment, and if the radiator is a liquid-cooled radiator, a set of liquid-cooled radiating system is required to be added. For the container of the centralized new energy power conversion system, in order to improve the heat dissipation efficiency, an independent heat dissipation device is usually configured for each electrical device in the container, which results in an increase in the overall volume of the container.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a cooling system and centralized new forms of energy power conversion system can reduce the cooling system volume when guaranteeing the radiating efficiency. The specific technical scheme is as follows:
the utility model provides a heat dissipation system, include:
a heat exchanger and at least two radiators;
the radiator is positioned in a preset range of the equipment to be radiated;
the heat exchanger is communicated with at least two radiators to realize heat interaction.
Alternatively to this, the first and second parts may,
the heat exchanger, comprising: a heat exchange chamber;
the heat sink, comprising: a heat dissipation chamber;
the heat exchange chamber is communicated with at least two heat dissipation chambers.
Alternatively to this, the first and second parts may,
and the heat exchange chamber is communicated with the heat dissipation chamber through corresponding pipelines.
In the alternative,
the heat exchange cavity and the heat dissipation cavity are different cavities which are formed by dividing a partition or a hollow structure of the shell in the same shell.
Alternatively to this, the first and second parts may,
the heat exchange chamber comprises: at least one heat dissipating tooth shaped surface;
and/or the presence of a gas in the atmosphere,
at least one said heat dissipation chamber comprising: at least one heat dissipating tooth shaped surface.
Optionally, the method further includes:
an isolation device;
the isolating device divides the heat exchanger into at least two mutually isolated heat exchange cavities in a closed state, and one heat exchange cavity is communicated with one radiator.
Optionally, the method further includes:
a temperature drop regulator, and/or a flow rate regulator;
the temperature reduction regulator at least reduces the temperature of the heat conducting medium in the heat exchanger;
the flow rate regulator is arranged in a communication area of the radiator and the heat exchanger, and/or the flow rate regulator is arranged in the heat exchanger;
the flow rate regulator regulates the exchange speed of the heat-conducting medium in the radiator and the heat-conducting medium in the heat exchanger.
Optionally, the method further includes:
a heat dissipation controller;
the control end of the cooling regulator is connected with one output end of the heat dissipation controller;
and the control end of the flow rate regulator is connected with the other output end of the heat dissipation controller.
Optionally, the method further includes:
a temperature collector;
the output end of the temperature collector is connected with the input end of the heat dissipation controller;
the temperature collector collects at least one of the temperature of the heat-conducting medium in the radiator, the temperature of the heat-conducting medium in the heat exchanger and the temperature of the equipment to be radiated;
and the heat dissipation controller outputs the adjusting parameters of the temperature reduction adjuster and/or the flow rate adjuster to be matched with the temperature collected by the temperature collector.
Optionally, the heat exchanger and the radiator are liquid cooling devices.
The utility model also provides a centralized new forms of energy power conversion system, include:
at least two devices to be cooled and the cooling system.
Optionally, the device to be cooled is a power converter or a transformer.
Optionally, the power converter includes: a power conversion unit and a reactor.
Alternatively to this, the first and second parts may,
the power conversion unit is positioned inside the radiator;
or the like, or, alternatively,
the power conversion unit is located outside the radiator and within a preset range of the radiator.
Alternatively to this, the first and second parts may,
the reactor is located inside the heat sink.
The embodiment of the utility model provides a pair of cooling system and centralized new forms of energy power conversion system utilizes a heat exchanger to carry out the heat absorption to two at least radiators, has reduced heat exchanger quantity, can reduce the cooling system volume when guaranteeing the radiating efficiency.
Of course, it is not necessary for any one product to achieve all of the above-described advantages at the same time in the practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a heat dissipation system according to an embodiment of the present invention;
fig. 2a is a schematic structural view of another heat dissipation system according to an embodiment of the present invention;
fig. 2b is a schematic structural view of another heat dissipation system according to an embodiment of the present invention;
fig. 3 is a schematic structural view of another heat dissipation system according to an embodiment of the present invention;
fig. 4 is a schematic structural view of another heat dissipation system according to an embodiment of the present invention;
fig. 5a is a schematic structural view of another heat dissipation system according to an embodiment of the present invention;
fig. 5b is a schematic structural view of another heat dissipation system according to an embodiment of the present invention;
fig. 6a is a schematic structural view of another heat dissipation system according to an embodiment of the present invention;
fig. 6b is a schematic structural view of another heat dissipation system according to an embodiment of the present invention;
fig. 7a is a schematic structural view of another heat dissipation system according to an embodiment of the present invention;
fig. 7b is a schematic view illustrating a flowing direction of the heat transfer medium according to an embodiment of the present invention;
fig. 7c is a schematic structural view of another heat dissipation system according to an embodiment of the present invention;
fig. 8 is a schematic diagram of an electrical connection provided by an embodiment of the present invention;
fig. 9a is a schematic diagram of a fan control process according to an embodiment of the present invention;
fig. 9b is a schematic diagram of a pump control process provided by an embodiment of the present invention;
fig. 9c is a schematic view of another pump control process provided by an embodiment of the present invention;
fig. 10a is a schematic diagram of a power conversion unit and a reactor location according to an embodiment of the present invention;
fig. 10b is a schematic diagram of another power conversion unit and a reactor according to an embodiment of the present invention;
fig. 11a illustrates a centralized new energy power conversion system according to an embodiment of the present invention;
fig. 11b is another centralized new energy power conversion system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
In order to reduce the cooling system volume when guaranteeing the radiating efficiency, the utility model provides a cooling system, this cooling system includes: a heat exchanger and at least two radiators.
The radiator is located in a preset range of the equipment to be radiated, the preset range can be a heat radiation range of the equipment to be radiated, and the radiator can be selected according to actual conditions, and is not particularly limited here. The radiator can radiate the equipment to be radiated so as to reduce the temperature of the equipment to be radiated. In practical application, the device to be cooled may be located inside the heat exchanger or outside the heat exchanger. When waiting that the heat dissipation equipment is located outside the heat exchanger, wait that the heat dissipation equipment can laminate on the wall of heat exchanger, also can keep preset distance with the heat exchanger, this preset distance can be confirmed according to the scope of predetermineeing. The equipment to be radiated can be a power electronic equipment body and also can be a heating device of the power electronic equipment. The equipment to be cooled in the plurality of radiators can be the same type of equipment to be cooled, and can also be different types of equipment to be cooled, and the equipment to be cooled can be selected according to actual conditions.
The heat exchanger is communicated with at least two radiators to realize heat interaction. The heat conducting medium of the radiator absorbs the heat released by the equipment to be radiated, the temperature of the heat conducting medium of the radiator rises, the heat conducting medium of the heat exchanger and the heat conducting medium of the radiator can be exchanged, and if the temperature of the heat conducting medium of the heat exchanger is lower than that of the heat conducting medium of the radiator, the temperature of the heat conducting medium of the radiator can be reduced after the heat conducting medium is exchanged, so that the radiating effect of the equipment to be radiated can be improved. If the heat conducting medium of one heat exchanger and the heat conducting medium of at least two radiators can exchange heat conducting media, the heat exchanger can realize heat interaction with the at least two radiators. The heat exchanger can carry out heat radiation on a plurality of radiators through carrying out heat interaction with the radiators.
Compared with the heat exchanger configured by one radiator, the heat exchanger can reduce the number of the heat exchangers, and the size of a heat dissipation system is reduced while the heat dissipation efficiency is ensured.
In practical applications, the heat exchanger may include a heat exchange chamber, and the heat sink may include a heat dissipation chamber, the heat exchange chamber being in communication with at least two heat dissipation chambers.
Because the heat exchange cavity is communicated with the heat dissipation cavity, the heat conducting medium in the heat exchange cavity can be exchanged with the heat conducting medium in the heat dissipation cavity. If the heat exchange cavity is communicated with the heat dissipation cavities, heat conducting media in the heat dissipation cavities can be exchanged with the heat conducting media of the heat exchange cavity, and therefore the heat exchanger can achieve heat exchange with the radiators.
In an alternative embodiment, the heat exchange chamber and the heat dissipation chamber are communicated through corresponding pipes.
In this embodiment, the multiple heat dissipation chambers are all communicated with the heat exchange chamber through a pipeline, as shown in fig. 1, the heat dissipation system includes one heat exchanger and four radiators, the heat exchanger includes a first heat exchange chamber 10, each radiator includes one heat dissipation chamber, and the heat dissipation chambers corresponding to the four radiators are a first heat dissipation chamber 11, a second heat dissipation chamber 12, a third heat dissipation chamber 13, and a fourth heat dissipation chamber 14, respectively. The first heat dissipation chamber 11 is communicated with the first heat exchange chamber 10 through a first pipeline 15, the second heat dissipation chamber 12 is communicated with the first heat exchange chamber 10 through a second pipeline 16, the third heat dissipation chamber 13 is communicated with the first heat exchange chamber 10 through a third pipeline 17, and the fourth heat dissipation chamber 14 is communicated with the first heat exchange chamber 10 through a fourth pipeline 18.
Optionally, the heat exchange chamber comprises at least one heat sink tooth shaped surface; and/or, at least one heat dissipation chamber comprising: at least one heat dissipating tooth shaped surface.
The surface of the heat exchange cavity is in the shape of heat dissipation teeth, so that the heat dissipation area can be increased, and the heat dissipation effect is improved. Similarly, the surface of the heat dissipation chamber is in the shape of heat dissipation teeth, so that the heat dissipation area can be increased, and the heat dissipation effect is improved.
The structure of the heat dissipation system will be specifically described by taking an example in which the heat dissipation system includes one heat exchanger and two heat sinks.
In one heat dissipation system configuration, as shown in fig. 2a, the first heat exchanger 21 of the heat dissipation system comprises a heat exchange chamber comprising a plurality of heat dissipation tooth-shaped surfaces. The two radiators of the heat dissipation system are a first radiator 22 and a second radiator 23, respectively, and the first radiator 22 includes a heat dissipation chamber including a plurality of heat dissipation tooth-shaped surfaces. The second heat sink 23 includes a heat dissipation chamber, and the surface of the heat dissipation chamber may be a smooth surface, that is, the surface may not have a heat dissipation tooth shape. The first radiator 22 and the first heat exchanger 21 are connected by a first two-way pipe 24 so that the heat transfer medium in the first radiator 22 exchanges heat with the heat transfer medium in the first heat exchanger 21. The second radiator 23 is connected to the first heat exchanger 21 via a second two-way pipe 25, so that the heat transfer medium in the second radiator 23 exchanges heat with the heat transfer medium in the first heat exchanger 21. The heat dissipation system further comprises a tee pipe 26, and the tee pipe 26 is respectively connected with the first radiator 22, the second radiator 23 and the first heat exchanger 21, so that heat conducting media in the first radiator 22 and heat conducting media in the second radiator 23 can exchange heat with heat conducting media in the first heat exchanger 21. Through the setting of tee bend pipeline, can increase heat-conducting medium exchange channel, be favorable to the reinforcing of radiator and heat exchanger heat interactive effect.
In another heat dissipation system configuration, as shown in FIG. 2b, the difference from the heat dissipation system configuration shown in FIG. 2a is that the heat dissipation system does not include a tee pipe, and the heat dissipation system includes a third two-way pipe 27 and a fourth two-way pipe 28. The first radiator 22 and the first heat exchanger 21 are connected by a third two-way pipe 27 so that the heat transfer medium in the first radiator 22 exchanges heat with the heat transfer medium in the first heat exchanger 21. The second radiator 23 is connected to the first heat exchanger 21 through a fourth two-way pipe 28 so that the heat transfer medium in the second radiator 23 exchanges heat with the heat transfer medium in the first heat exchanger 21. Through the setting of third bi-pass pipeline, can increase first radiator and heat exchanger heat-conducting medium exchange channel, through the setting of fourth bi-pass pipeline, can increase second radiator and heat exchanger heat-conducting medium exchange channel, be favorable to the reinforcing of radiator and heat exchanger heat interactive effect.
Fig. 2a and 2b each show that the heat exchange chamber has a plurality of heat dissipating teeth shaped surfaces, and one heat dissipating chamber has a plurality of heat dissipating teeth shaped surfaces and the other heat dissipating chamber does not have a heat dissipating teeth shaped surface. Of course, the utility model provides a heat radiation system can also be the surface that the heat transfer cavity has a plurality of heat dissipation dentiform, and two heat dissipation cavities all have the surface of a plurality of heat dissipation dentiform. Or, the heat dissipation system can also be formed by a heat exchange chamber with a plurality of heat dissipation tooth-shaped surfaces, and two heat dissipation chambers do not have heat dissipation tooth-shaped surfaces. Alternatively, the heat dissipation system may be such that the heat exchange chambers do not have a heat dissipation tooth-shaped surface, one heat dissipation chamber has a plurality of heat dissipation tooth-shaped surfaces, and the other heat dissipation chamber does not have a heat dissipation tooth-shaped surface. Alternatively, the heat dissipation system may be such that the heat exchange chambers do not have a heat dissipation tooth-shaped surface, and both the two heat dissipation chambers have a plurality of heat dissipation tooth-shaped surfaces.
In another optional embodiment, the heat exchange chamber and the heat dissipation chamber are different chambers divided by a partition or a hollow structure of the housing in the same housing.
The heat exchange cavity and the heat dissipation cavity are arranged in the same shell, the shell can be divided into different areas through the partition pieces positioned in the shell, and the heat exchange cavity and the plurality of heat dissipation cavities are formed. The shell can be divided into different cavities by the partition piece positioned in the shell, the shell can be of a hollow structure, the middle area of the shell can form a heat exchange cavity by the hollow structure, and a plurality of heat dissipation cavities can be formed in other areas except the middle part of the shell.
In this embodiment, as shown in fig. 3, a partition 31 is provided in the casing 30, and the partition divides the casing into five regions, the middle region is a second heat exchange chamber 32, and the peripheral regions are a fifth heat dissipation chamber 33, a sixth heat dissipation chamber 34, a seventh heat dissipation chamber 35, and an eighth heat dissipation chamber 36. The second heat exchange chamber 32 communicates with the four heat dissipation chambers through the through holes or passages of the partition.
Optionally, the heat exchange chamber comprises at least one heat sink tooth shaped surface; and/or, at least one heat dissipation chamber comprising: at least one heat dissipating tooth shaped surface.
The surface of the heat exchange cavity is in the shape of heat dissipation teeth, so that the heat dissipation area can be increased, and the heat dissipation effect is improved. Similarly, the surface of the heat dissipation chamber is in the shape of heat dissipation teeth, so that the heat dissipation area can be increased, and the heat dissipation effect is improved.
The structure of the heat dissipation system will be specifically described by taking an example in which the heat dissipation system includes one heat exchanger and two heat sinks.
In one heat dissipation system configuration, as shown in fig. 4, the second heat exchanger 41 of the heat dissipation system includes a heat exchange chamber including a plurality of heat dissipation tooth-shaped surfaces. The two radiators of the heat dissipation system are a third radiator 42 and a fourth radiator 43, respectively, and the third radiator 42 and the fourth radiator 43 each include a heat dissipation chamber. The heat exchange chamber and the heat dissipation chamber are divided by a partition 44 in the housing 40 or a hollow structure of the housing. The separator comprises two oppositely-arranged concave structures, a gap is formed between the two concave structures, and heat-conducting media in the heat exchange cavity and heat-conducting media in the heat dissipation cavity can be exchanged through the gap. The surface of each concave structure of the gap can be in a radiating tooth shape, so that the radiating area can be increased, and the radiating effect is improved.
Fig. 4 shows that the heat exchange chamber has a plurality of heat dissipating tooth shaped surfaces, whereas the heat dissipating chamber does not have a heat dissipating tooth shaped surface. Of course, the utility model provides a heat radiation system can also be the surface that the heat transfer cavity has a plurality of heat dissipation dentiform, and two heat dissipation cavities all have the surface of a plurality of heat dissipation dentiform. Alternatively, the heat dissipation system may be such that the heat exchange chamber has a plurality of heat dissipation tooth-shaped surfaces, one heat dissipation chamber has a plurality of heat dissipation tooth-shaped surfaces, and the other heat dissipation chamber does not have a heat dissipation tooth-shaped surface. Alternatively, the heat dissipation system may be such that the heat exchange chambers do not have a heat dissipation tooth-shaped surface, one heat dissipation chamber has a plurality of heat dissipation tooth-shaped surfaces, and the other heat dissipation chamber does not have a heat dissipation tooth-shaped surface. Alternatively, the heat dissipation system may be such that the heat exchange chambers do not have a heat dissipation tooth-shaped surface, and both the two heat dissipation chambers have a plurality of heat dissipation tooth-shaped surfaces.
As an optional implementation mode, the utility model provides a heat dissipation system still includes: and isolating the device. The isolator is under closed condition, cut apart into two at least heat transfer cavitys of mutual isolation with the heat exchanger, and a heat transfer cavity communicates with a radiator.
Different radiators can be used for radiating the same type of equipment to be radiated and can also be used for radiating different types of equipment to be radiated, the temperature upper limit consistency of the same type of equipment to be radiated is higher, and the temperature upper limit consistency of different types of equipment to be radiated is lower. If the heat dissipation system dissipates heat of different types of equipment to be dissipated, the temperature of the heat conducting medium in one radiator exceeds the upper temperature limit of the equipment to be dissipated corresponding to the other radiator, so that the equipment to be dissipated, which exceeds the upper temperature limit, can be damaged. In order to avoid damage to equipment to be cooled caused by interaction of overheated heat conducting media, an isolating device can be arranged in the heat exchanger, the isolating device can divide the heat exchanger into a plurality of heat exchange cavities with non-exchanged heat conducting media in a closed state, and the heat conducting media cannot be exchanged among the heat exchange cavities, so that the heat conducting media released from one radiator cannot enter another radiator, and adverse effects on the equipment to be cooled caused by circulation of the high-temperature heat conducting media are avoided.
Alternatively, the isolation device may be a valve, and the valve 51 may be provided in the heat dissipation system of fig. 2 b. As shown in fig. 5a, the valve 51 is in an open state, the heat transfer medium in the first radiator 22 can flow into the second radiator 23 through the first heat exchanger 21, and the heat transfer medium in the second radiator 23 can also flow into the first radiator 22 through the first heat exchanger 21. As shown in fig. 5b, when the valve 51 is in the closed state, the first heat exchanger is divided into a first heat exchange cavity 52 and a second heat exchange cavity 53 which are isolated from each other.
The heat-conducting medium in the first radiator and the heat-conducting medium in the second radiator can be communicated and mutually flowed through the valve, and when the temperature of the heat-conducting medium in the first radiator does not reach the temperature protection limit value of the heat-conducting medium of the equipment to be radiated in the radiation range of the second radiator, the valve opens the heat-conducting medium to be mutually communicated, so that the overall radiation efficiency can be improved; when the temperature of the heat-conducting medium in the first radiator is higher than the temperature protection limit value of the heat-conducting medium of the equipment to be radiated in the radiation range of the second radiator, the valve is closed, so that two independent radiation systems are formed, wherein one radiation system is used for the first radiator to communicate the heat-conducting medium with the first heat exchange cavity, and the other radiation system is used for the second radiator to communicate the heat-conducting medium with the second heat exchange cavity.
Optionally, the isolation device may be a partition plate, and the partition plate may be disposed in the heat dissipation system in fig. 2a, as shown in fig. 6a, the first partition plate 61 is in a closed state, and when the first partition plate 61 is in the closed state, the first heat exchanger is divided into a third heat exchange cavity 62 and a fourth heat exchange cavity 63 that are isolated from each other.
Of course, it is also possible to arrange a partition plate in the heat dissipation system of fig. 4, as shown in fig. 6b, the second partition plate 64 is in a closed state, and when the second partition plate 64 is in the closed state, the second heat exchanger is divided into a fifth heat exchange cavity 65 and a sixth heat exchange cavity 66 which are isolated from each other.
In order to improve the heat dissipation efficiency, the utility model provides a heat dissipation system still includes: a cooling regulator, and/or a flow rate regulator. The temperature reduction regulator at least reduces the temperature of the heat conducting medium in the heat exchanger; the flow rate regulator is arranged in a communication area of the radiator and the heat exchanger, and/or the flow rate regulator is arranged in the heat exchanger; the flow rate regulator regulates the exchange speed of the heat-conducting medium in the radiator and the heat-conducting medium in the heat exchanger.
The temperature reduction regulator can reduce the temperature of the heat-conducting medium in the heat exchanger, the temperature of the heat-conducting medium in the heat exchanger is reduced, and the temperature of the heat-conducting medium in the radiator can be reduced when the heat exchanger is exchanged with the heat-conducting medium of the radiator, so that the equipment to be cooled in the radiating range of the radiator is reduced. Of course, the temperature drop regulator may also reduce the temperature of the heat-conducting medium in one or more heat sinks, so as to reduce the devices to be cooled within the heat dissipation range of the heat sinks. Optionally, the temperature drop regulator may be a fan.
The flow rate regulator can regulate the exchange speed of the heat-conducting medium in the radiator and the heat-conducting medium in the heat exchanger, and the faster the flow rate of the heat-conducting medium is, the faster the heat exchange speed is, the more the temperature of the heat-conducting medium in the radiator is favorably reduced, so that the heat dissipation effect of the equipment to be cooled is improved. Alternatively, the flow rate regulator may be a pump.
As an alternative embodiment, a cooling regulator and a flow rate regulator may be provided in the heat dissipation system shown in fig. 2a, as shown in fig. 7a, the cooling regulator 71 cools the first heat exchanger 21, the first flow rate regulator 72 is provided in a communication area of the first heat sink 22 and the first heat exchanger 21, and the second flow rate regulator 73 is provided in a communication area of the second heat sink 23 and the first heat exchanger 21. Alternatively, the temperature and flow rate regulators may be provided in the heat dissipation system shown in fig. 6 a. Of course, whether the heat dissipation system shown in fig. 2a or the heat dissipation system shown in fig. 6a is the heat dissipation system shown in fig. 2a, only one temperature reduction regulator may be added, only one flow rate regulator may be added, only two flow rate regulators may be added, one temperature reduction regulator and one flow rate regulator may also be added, which are not shown one by one, and are all within the protection scope of the present application.
As shown in fig. 7b, which is a schematic view of the flowing direction of the heat transfer medium, it can be seen that the heat transfer medium in the first heat sink 22 passes through the first heat exchanger 21 and then reaches the first heat sink 22, so as to exchange the heat transfer medium in the first heat sink 22 with the heat transfer medium in the first heat exchanger 21. The heat-conducting medium in the second radiator 23 passes through the first heat exchanger 21 and then reaches the second radiator 23, so that the heat-conducting medium in the second radiator 23 is exchanged with the heat-conducting medium in the first heat exchanger 21.
As an alternative embodiment, the cooling regulator and the flow rate regulator may be disposed in the heat dissipation system shown in fig. 2b or fig. 5a or fig. 5b, and fig. 5a is taken as an example to illustrate the structure of the heat dissipation system provided with the cooling regulator and the flow rate regulator, as shown in fig. 7c, the cooling regulator 71 cools down the first heat exchanger 21, the first flow rate regulator 72 is disposed in the first heat sink 22, and the second flow rate regulator 73 is disposed in the second heat sink 23. The cooling system can be additionally provided with only one cooling regulator, only one flow rate regulator or only two flow rate regulators, one cooling regulator and one flow rate regulator, and the cooling system and the flow rate regulators are not shown one by one and are all within the protection range of the application.
Optionally, the utility model provides a heat dissipation system, this heat dissipation system still includes: a heat dissipation controller. The control end of the cooling regulator is connected with one output end of the heat dissipation controller; the control end of the flow rate regulator is connected with the other output end of the heat dissipation controller.
The heat dissipation controller can control the start and stop of the cooling regulator and can also control the temperature value output by the cooling regulator. The heat dissipation controller can control the starting and stopping of the flow rate regulator and can also control the flow rate value output by the flow rate regulator. In practical application, the cooling regulator can be a fan, and the rotating speed of the fan is regulated according to the temperature difference between the radiator and the heat exchanger; the flow rate regulator may be a pump, and may control the flow rate of the heat transfer medium according to the heat amount and the heat balance.
In order to improve the heat dissipation effect, the temperature reduction regulator can be controlled based on the temperature collected by the temperature collector, and the flow speed regulator can be controlled based on the temperature collected by the temperature collector. Optionally, the heat dissipation system further includes: and a temperature collector.
The output end of the temperature collector is connected with the input end of the heat dissipation controller.
The temperature collector collects at least one of the temperature of the heat-conducting medium in the radiator, the temperature of the heat-conducting medium in the heat exchanger and the temperature of the equipment to be radiated.
And the heat dissipation controller outputs the adjusting parameters to the temperature reduction adjuster and/or the flow speed adjuster, and the adjusting parameters are matched with the temperature acquired by the temperature acquisition device.
As shown in fig. 8, which shows a schematic diagram of an electrical connection relationship of a heat dissipation system, an output terminal of a temperature collector 81 is connected to an input terminal of a heat dissipation controller 82, a first output terminal of the heat dissipation controller 82 is connected to the cooling regulator 71, a second output terminal of the heat dissipation controller 82 is connected to the first flow regulator 72, and a third output terminal of the heat dissipation controller 82 is connected to the second flow regulator 73. Optionally, the heat dissipation controller may further include a fourth output terminal (not shown in the figure), and the fourth output terminal is connected to the device to be cooled, so that when the temperature of the device to be cooled cannot be lower than the device temperature limit value by the cooling regulator and the flow rate regulator, the device to be cooled is controlled to be turned off, and the purpose of protecting the device to be cooled is achieved.
The temperature collected by the temperature collector may include a temperature NGT of a heat transfer medium in the first radiator, a temperature NBT of a heat transfer medium in the second radiator, a temperature NCT of a heat transfer medium in the heat exchanger, a temperature QGT of the first device to be cooled, and a temperature QBT of the second device to be cooled. The first equipment to be cooled is located in the cooling range of the first radiator, and the second equipment to be cooled is located in the cooling range of the second radiator.
When the fan rotating speed is controlled, the fan rotating speed can be controlled based on the temperature NCT of the heat-conducting medium in the heat exchanger and the temperature difference NCT-NGT and NCT-NBT between the temperature NCT of the heat-conducting medium in the heat exchanger and the temperature difference NCT-NGT and NCT-NBT of the heat-conducting medium in the radiator.
In the pump rotational speed control, the control of the first pump may be performed based on a difference NCT-NGT between the heat transfer medium temperature NCT in the heat exchanger and the heat transfer medium temperature NGT in the first radiator, the first pump being located between the heat exchanger and the first radiator or being located in the first radiator. The control of the second pump, which is located between the heat exchanger and the second radiator or in the second radiator, may be performed on the basis of the difference NCT-NBT between the temperature NCT of the heat transfer medium in the heat exchanger and the temperature NBT of the heat transfer medium in the second radiator.
Setting two thresholds CYZT1 and CYZT2 based on the temperature NCT of the heat-conducting medium in the heat exchanger, wherein the CYZT2 is larger than the CYZT1; NCT-NGT and NCT-NBT set a threshold value CHAYZT.
As shown in fig. 9a, if the temperature NCT of the heat-conducting medium in the heat exchanger is less than CYZT1, the fan is stopped; if the CYZT2 is greater than the temperature NCT of the heat-conducting medium in the heat exchanger, and the temperature NCT of the heat-conducting medium in the heat exchanger is not less than the temperature CYZT1, the fan is started and the rotating speed is KP1 max [ (NGT-NCT), (NBT-NCT) ]. When the oil temperature NCT in the oil storage radiator is not less than CYZT2, if NGT-NCT or NBT-NCT is more than CHAYZT, the fan is started and the rotating speed is FSU0+ KP2 max [ (NGT-NCT), (NBT-NCT) ]; if NCT is greater than CYZT2 and NGT-NCT or NBT-NCT is less than CHAYZT, starting the fan and setting the rotating speed to FSU0; wherein the conversion coefficient KP2 is greater than the conversion coefficient KP1.
The two pumps are YB1 and YB2 respectively based on a temperature protection limit setting threshold QYZT of equipment to be cooled, the pump YB1 can be positioned between a heat exchanger and a first radiator or positioned in the first radiator, and the pump YB2 can be positioned between the heat exchanger and a second radiator or positioned in the second radiator.
As shown in fig. 9b, when the first to-be-cooled device temperature QGT is not greater than the threshold value QYZT, the pump YB1 is stopped; when the first equipment temperature QGT to be cooled is greater than the threshold value QYZT, and QCHAT1< NGT-NCT < QCHAT2 (wherein QCHAT1< chanyzt), the rotating speed of the pump YB1 is YBSU0+ QKP1 (NGT-NCT); if the QGT is greater than QYZT and the NGT-NCT is smaller than QCHAT1, the rotating speed of the pump YB1 is YBSU0; if QGT > QYZT and NGT-NCT are not less than QCHAT2 (where QCHAT2> CHAYZT), the speed of pump YB1 is YBSU0+ QKP2 (NGT-NCT) (where the conversion factor QKP2> the conversion factor QKP 1).
As shown in fig. 9c, when the second to-be-cooled device temperature QBT is not greater than the threshold value QYZT, the pump YB2 is stopped; when the temperature QBT of the second device to be cooled is greater than the threshold value QYZT and QCHAT1< NBT-NCT < QCHAT2 (wherein QCHAT1< CHAYZT), the rotating speed of the pump YB2 is YBSU0+ QKP1 (NBT-NCT); if QBT is greater than QYZT and NBT-NCT is smaller than QCHAT1, the rotating speed of the pump YB2 is YBSU0; if QBT > QYZT and NBT-NCT are not less than QCHAT2 (where QCHAT2> CHAYZT), the speed of pump YB2 is YBSU0+ QKP2 (NBT-NCT) (where the conversion factor QKP2> the conversion factor QKP 1).
In practical application, the heat exchanger and the radiator can be liquid cooling equipment, and particularly can be oil cooling equipment. The device to be cooled may be a power conversion device or a voltage converter. Alternatively, the power conversion device may be an inverter or a converter, and the voltage converter may be a transformer. By the heat dissipation system, the radiator of the power conversion device and the radiator of the voltage converter can share one heat exchanger, and compared with the case that one heat exchanger is arranged for each radiator, the size of the heat dissipation system is reduced. And through the exchange of the heat exchanger and the heat-conducting medium of the radiator and the control of the temperature and the flow rate of the heat-conducting medium, the cooperative heat dissipation control capability of the heat dissipation system can be improved, and the heat dissipation effect is improved.
The utility model also provides a centralized new forms of energy power conversion system, include: at least two devices to be cooled and the cooling system.
Optionally, the device to be cooled is a power converter or a transformer.
Optionally, the power converter comprises: a power conversion unit and a reactor. The reactor can comprise a grid-connected reactor and a filtering reactor, wherein the output end of the power conversion unit is connected with one end of the grid-connected reactor, the other end of the grid-connected reactor is connected with a power grid, and the output end of the power conversion unit is also connected with the filtering reactor.
In an alternative embodiment, the power conversion unit is located inside the heat sink; the reactor is located inside the heat sink. As shown in fig. 10a, both the power conversion unit 101 and the reactor 102 are located inside the heat sink 103.
In another optional embodiment, the power conversion unit is located outside the heat sink and the power conversion unit is located within a predetermined range of the heat sink; the reactor is located inside the heat sink. In order to improve the heat dissipation effect, the power conversion unit may be disposed on the outer wall of the heat sink, and optionally, the power conversion unit may be disposed on the surface of the heat sink having the heat dissipation teeth. As shown in fig. 10b, the power conversion unit 101 is disposed on the surface of the heat sink 103 having the heat dissipation teeth 104, and the reactor 102 is located inside the heat sink 103.
As shown in fig. 11a, there is provided a configuration diagram of a centralized new energy power conversion system including a power converter including a power conversion unit 111 and a reactor 112, a transformer, and a heat dissipation system, referring to fig. 7a, the power conversion unit 111 is disposed on a surface of a first heat sink 22 having heat dissipation teeth, the reactor 112 is located inside the first heat sink 22, and the transformer 113 is located inside a second heat sink 23.
As shown in fig. 11b, there is provided a configuration diagram of a centralized new energy power conversion system including a power converter including a power conversion unit 111 and a reactor 112, a transformer, and a heat dissipation system, referring to fig. 7c, the power conversion unit 111 is disposed on a surface of the first heat sink 22 having heat dissipation teeth, the reactor 112 is located inside the first heat sink 22, and the transformer 113 is located inside the second heat sink 23.
If the centralized new energy power conversion system is a centralized photovoltaic power conversion system, the power converter is an inverter, the output end of a photovoltaic array of the centralized photovoltaic power conversion system is connected with the input end of the inverter, the output end of the inverter is connected with the input end of a transformer, and the output end of the transformer is connected with a power grid. If the centralized new energy power conversion system is a centralized wind power conversion system, the power inverter is a wind power converter, the output end of a wind turbine generator of the centralized wind power conversion system is connected with the input end of the wind power converter, the output end of the wind power converter is connected with the input end of a transformer, and the output end of the transformer is connected with a power grid.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230 \8230;" does not exclude the presence of additional like elements in the process, article, or device in which the element is comprised.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on differences from other embodiments.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (15)
1. A heat dissipation system, comprising:
a heat exchanger and at least two radiators;
the radiator is positioned in a preset range of the equipment to be radiated;
the heat exchanger is communicated with at least two radiators to realize heat interaction.
2. The heat dissipation system of claim 1,
the heat exchanger, comprising: a heat exchange chamber;
the heat sink, comprising: a heat dissipation chamber;
the heat exchange chamber is communicated with at least two heat dissipation chambers.
3. The heat dissipation system of claim 2,
and the heat exchange chamber is communicated with the heat dissipation chamber through corresponding pipelines.
4. The heat dissipation system of claim 2,
the heat exchange cavity and the heat dissipation cavity are different cavities which are formed by dividing a partition or a hollow structure of the shell in the same shell.
5. The heat dissipating system of claim 3 or 4,
the heat exchange chamber comprises: at least one heat dissipating tooth shaped surface;
and/or the presence of a gas in the atmosphere,
at least one said heat dissipation chamber comprising: at least one heat dissipating tooth shaped surface.
6. The heat dissipating system of claim 1, further comprising:
an isolation device;
the isolating device divides the heat exchanger into at least two mutually isolated heat exchange cavities in a closed state, and one heat exchange cavity is communicated with one radiator.
7. The heat dissipating system of any one of claims 1-4, 6, further comprising:
a cooling regulator, and/or a flow rate regulator;
the temperature reduction regulator at least reduces the temperature of the heat conducting medium in the heat exchanger;
the flow rate regulator is arranged in a communication area of the radiator and the heat exchanger, and/or the flow rate regulator is arranged in the heat exchanger;
the flow rate regulator regulates the exchange speed of the heat-conducting medium in the radiator and the heat-conducting medium in the heat exchanger.
8. The heat dissipating system of claim 7, further comprising:
a heat dissipation controller;
the control end of the cooling regulator is connected with one output end of the heat dissipation controller;
and the control end of the flow rate regulator is connected with the other output end of the heat dissipation controller.
9. The heat dissipation system of claim 8, further comprising:
a temperature collector;
the output end of the temperature collector is connected with the input end of the heat dissipation controller;
the temperature collector collects at least one of the temperature of the heat-conducting medium in the radiator, the temperature of the heat-conducting medium in the heat exchanger and the temperature of the equipment to be radiated;
and the heat dissipation controller outputs the adjusting parameters of the temperature reduction adjuster and/or the flow rate adjuster to be matched with the temperature collected by the temperature collector.
10. The heat dissipation system of any of claims 1-4, 6, wherein the heat exchanger and the heat sink are liquid cooled devices.
11. A centralized new energy power conversion system, comprising:
at least two devices to be cooled and a heat dissipation system as claimed in any of claims 1-10.
12. The centralized new energy power conversion system according to claim 11, wherein the device to be cooled is a power converter or a transformer.
13. The centralized new energy power conversion system of claim 12, wherein the power converter comprises: a power conversion unit and a reactor.
14. The centralized new energy power conversion system of claim 13,
the power conversion unit is positioned inside the radiator;
or the like, or, alternatively,
the power conversion unit is located outside the radiator and within a preset range of the radiator.
15. The centralized new energy power conversion system of claim 13,
the reactor is located inside the heat sink.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221903185.3U CN217825828U (en) | 2022-07-22 | 2022-07-22 | Cooling system and centralized new forms of energy power conversion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221903185.3U CN217825828U (en) | 2022-07-22 | 2022-07-22 | Cooling system and centralized new forms of energy power conversion system |
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| CN217825828U true CN217825828U (en) | 2022-11-15 |
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| CN202221903185.3U Active CN217825828U (en) | 2022-07-22 | 2022-07-22 | Cooling system and centralized new forms of energy power conversion system |
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| CN (1) | CN217825828U (en) |
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