A method for maintaining stable operation of wind power generation

Abstract

The present invention relates to the technical field of wind power generation, and in particular to a method for maintaining stable operation of wind power generation. An embodiment of the present invention provides a method for maintaining stable operation of wind power generation, based on a wind power generation system, the wind power generation system includes a fan device and a power generation mechanism, the fan device includes blades and a rotating shaft, and the rotating shaft is connected to the power generation device; the method includes: using wind force to rotate the blades; using the rotating shaft to transfer mechanical energy to the power generation device; using the vacuum space to insulate the cabinet; using the gas cylinder to output cooling fluid to cool the power generation device. An embodiment of the present invention provides a method for maintaining stable operation of wind power generation, which can keep the power generation mechanism at a suitable operating temperature.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a method for maintaining stable operation of wind power generation. Background Art

[0002] A wind power generation system is a system that uses wind energy to generate electricity. In this system, the wind power generation system needs to convert wind energy into mechanical energy through the rotation of the wind turbine, and the mechanical energy is converted into electrical energy through the power generation mechanism. There are various power generation devices installed inside the power generation mechanism, and these power generation devices need to operate in a stable temperature environment. However, in the northwest region, the daily temperature difference and the annual temperature difference are large, which has an adverse effect on the stable operation of the power generation devices in the power generation mechanism.

[0003] Therefore, in view of the above-mentioned shortcomings, there is an urgent need for a method for maintaining stable operation of wind power generation, which can keep the power generation mechanism at a suitable operating temperature. Summary of the invention

[0004] The embodiment of the present invention provides a method for maintaining stable operation of wind power generation, which can keep a power generation mechanism at a suitable operating temperature.

[0005] The embodiment of the present invention provides a method for maintaining stable operation of wind power generation, based on a wind power generation system, wherein the wind power generation system includes a wind turbine device and a power generation mechanism, wherein the wind turbine device includes blades and a rotating shaft, and the rotating shaft is connected to a power generation device;

[0006] The power generation mechanism comprises a cabinet, a shell and a gas cylinder;

[0007] The power generation device is arranged in the cabinet, the cabinet is arranged inside the shell through a hollow suspension rod, a hollow connecting rod is further arranged between the cabinet and the shell, the two ends of the connecting rod connect the space inside the cabinet and the space outside the shell, the line of the power generation device passes through the shell through the connecting rod, and the space between the cabinet and the shell is a vacuum environment;

[0008] The gas cylinder is arranged in the vacuum space, the gas cylinder is used to contain cooling fluid, the outlet of the gas cylinder is connected to the output pipe, the output pipe penetrates the cabinet, the outer wall of the output pipe is in sealing contact with the through hole on the cabinet for penetrating the output pipe, and the outlet of the output pipe faces the power generation device;

[0009] The method comprises:

[0010] Using wind power to rotate the blades;

[0011] Using the rotating shaft to transmit mechanical energy to the power generation device;

[0012] Using the vacuum space to keep the cabinet warm;

[0013] The gas cylinder is used to output cooling fluid to cool the power generation device.

[0014] In a possible design, the power generation mechanism further includes a water cooling device and a flow regulating device;

[0015] The water cooling device comprises a circulation pipeline filled with water and a power device, wherein the circulation pipeline is arranged beside the power generation device to cool the power generation device, and the power device is used to drive the circulation of the cooling fluid in the circulation pipeline, and the circulation pipeline is provided with a temperature-sensitive hydrogel;

[0016] The flow regulating device comprises a pressure plate, a transmission device and a baffle plate arranged in the circulation pipeline, the plane where the pressure plate is located intersects with the water flow direction in the circulation pipeline, the pressure plate is connected to the baffle plate through the transmission device, and the baffle plate is movably arranged inside the output pipeline;

[0017] The thermosensitive hydrogel in the circulation pipeline absorbs heat and undergoes phase change to shrink to speed up the flow rate, thereby driving the pressure plate to move. The movement of the pressure plate is transmitted to the baffle through the transmission device to control the baffle to slide and release more of the cooling fluid.

[0018] In a possible design, the cabinet is provided with an air vent, and the shell is provided with an exhaust hole. The two ends of the suspension rod are respectively sealed and connected to the edge of the air vent and the edge of the exhaust hole, so that the interior of the cabinet is connected to the outside world through the suspension rod. The air vent is covered with a shape memory polymer that is deformed by temperature stimulation, and the shape memory polymer includes an initial plate-like shape. The shape memory polymer in the initial shape blocks the air vent.

[0019] In a possible design, an electromagnet is disposed on a side of the air vent away from the shape memory polymer, magnetic particles are distributed inside the shape memory polymer, and the electromagnet is connected in series with a thermistor with a positive temperature coefficient.

[0020] In a possible design, the air vent is disposed on the top of the cabinet.

[0021] In a possible design, a spring is connected between the pressure plate and the circulation pipe, and the spring is used to lift the pressure plate when the water flow rate in the circulation pipe decreases.

[0022] In a possible design, the transmission device includes a first transmission shaft, a hydraulic pipeline and a second transmission shaft, the circulation pipeline includes a through hole with the same diameter as the first transmission shaft, the first transmission shaft is inserted into the circulation pipeline, a groove is provided in the through hole, a sealing ring is provided in the groove, the two ends of the first transmission shaft are respectively connected to the pressure plate and the first top plug at one end of the hydraulic pipeline, a second top plug is provided at the other end of the hydraulic pipeline, the second top plug is connected to the second transmission shaft, the second transmission shaft is connected to the baffle, and the first top plug and the second top plug are transmitted through the hydraulic oil in the hydraulic pipeline.

[0023] In a possible design, a cross-sectional area of ​​the second top plug is larger than a cross-sectional area of ​​the first top plug.

[0024] In a possible design, the thermosensitive hydrogel with different phase transition temperatures is arranged in the circulation pipeline.

[0025] In a possible design, the shell is made of a thermal insulation material.

[0026] Compared with the prior art, the present invention has at least the following beneficial effects:

[0027] In the present application, a cabinet is hoisted inside a shell, a power generation device is installed inside the cabinet, and a vacuum space is set between the shell and the cabinet. The vacuum space can isolate the external environment from the environment inside the cabinet to prevent heat transfer. It should be noted that the cabinet and the shell cannot be in direct contact. If they are in direct contact, a larger range of heat transfer will result, and the rapid transfer of heat will lose the effect of vacuum insulation. Therefore, a suspension rod is selected to hoist the cabinet inside the shell, so that the cabinet and the shell are connected in a small area only through the contact part of the suspension rod, and the suspension rod with a certain length also has the effect of delaying heat transfer. Further, the hollow suspension rod has a smaller cross-sectional area, which can further reduce the transfer of heat and keep the cabinet warm. At the same time, the way the suspension rod is connected also has the effect of stabilizing the cabinet. In order to facilitate the control interaction of the power generation device in the cabinet with the external equipment and ensure the sealing in the vacuum space, a hollow connecting rod is set between the cabinet and the shell, and the transmission shaft can pass through the shell through the connecting rod to connect with the outside world. The two ends of the connecting rod can be welded on the cabinet and the shell to achieve a sealed connection.

[0028] After isolating the external environment, the power generation device in the cabinet will generate heat during operation. If it is not cooled down, the power generation device in the cabinet will be at risk of failure at high temperature. Therefore, it is necessary to cool down the power generation device. Specifically, a gas cylinder is arranged in a vacuum space and can be hoisted on the shell. The environment in which the gas cylinder is located is a vacuum environment. The thermal insulation requirements of the gas cylinder can be appropriately reduced. The gas cylinder can be used to hold some low-temperature fluid, such as liquid nitrogen, which has an excellent cooling effect. The outlet of the gas cylinder is connected to an output pipe, which passes through the cabinet to output low-temperature gas to the power generation device, neutralizes the heat generated by the power generation device, and thereby keeps the temperature of the entire cabinet within a reasonable range. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 is a flow chart of a method for maintaining stable operation of wind power generation provided by an embodiment of the present invention;

[0031] Figure 2 It is a structural schematic diagram of a wind power generation system provided by an embodiment of the present invention.

[0032] In the figure:

[0033] 100- fan equipment;

[0034] 101-leaf;

[0035] 102-rotating shaft;

[0036] 1-Cabinet;

[0037] 2- Shell;

[0038] 3- boom;

[0039] 4- Connecting rod;

[0040] 5- Power generation device;

[0041] 6- Gas cylinder

[0042] 7- Output pipeline;

[0043] 8-Circulation pipeline;

[0044] 9- Power plant;

[0045] 10-Thermosensitive hydrogel;

[0046] 11-pressing plate;

[0047] 12- baffle;

[0048] 13- vent holes;

[0049] 14- Exhaust hole;

[0050] 15-Shape memory polymers;

[0051] 16-electromagnet;

[0052] 17-Thermostatic resistor;

[0053] 18-spring;

[0054] 19- first transmission shaft;

[0055] 20-Hydraulic pipes;

[0056] 21- second transmission shaft;

[0057] 22-First top plug;

[0058] 23-Second top plug. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0060] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present invention are described at the angles shown in the drawings and should not be understood as limiting the embodiments of the present invention. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0062] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a method for maintaining stable operation of wind power generation, a wind power generation system, the wind power generation system includes a wind turbine device and a power generation mechanism, the wind turbine device 100 includes blades 101 and a rotating shaft 102, and the rotating shaft is connected to a power generation device;

[0063] The power generation mechanism comprises a cabinet 1, a shell 2 and a gas cylinder 6;

[0064] A power generation device 5 is arranged in the cabinet 1. The cabinet 1 is arranged inside the shell 2 through a hollow suspension rod 3. A hollow connecting rod 4 is also arranged between the cabinet 1 and the shell 2. The two ends of the connecting rod 4 connect the space inside the cabinet 1 and the space outside the shell 2. The line of the power generation device 5 passes through the shell 2 via the connecting rod 4. There is a vacuum space in a vacuum environment between the cabinet 1 and the shell 2.

[0065] The gas cylinder 6 is arranged in the vacuum space, and is used to contain cooling fluid. The outlet of the gas cylinder 6 is connected to the output pipe 7, and the output pipe 7 penetrates into the cabinet 1. The outer wall of the output pipe 7 is in sealing contact with the through hole on the cabinet 1 for penetrating the output pipe 7, and the outlet of the output pipe 7 faces the power generation device 5.

[0066] The method comprises:

[0067] Using wind power to rotate the blades;

[0068] Using the rotating shaft to transmit mechanical energy to the power generation device;

[0069] Using the vacuum space to keep the cabinet warm;

[0070] The gas cylinder is used to output cooling fluid to cool the power generation device.

[0071] In the present application, a cabinet 1 is hoisted inside the shell 2, a power generation device 5 is installed inside the cabinet 1, and a vacuum space is set between the shell 2 and the cabinet 1. The vacuum space can isolate the external environment from the environment inside the cabinet 1 to prevent heat transfer. It should be noted that the cabinet 1 and the shell 2 cannot be in direct contact. If they are in direct contact, a larger range of heat transfer will result, and the rapid heat transfer will lose the effect of vacuum insulation. Therefore, a suspension rod 3 is selected to suspend the cabinet 1 inside the shell 2, so that the cabinet 1 and the shell 2 are connected in a small area only through the contact part of the suspension rod 3, and the suspension rod 3 with a certain length also has the effect of delaying heat transfer. Further, the hollow suspension rod 3 has a smaller cross-sectional area, which can further reduce the transfer of heat and keep the cabinet 1 warm. At the same time, the way the suspension rod 3 is connected also has the effect of stabilizing the cabinet 1. In order to facilitate the control interaction of the power generation device 5 in the cabinet 1 with the external equipment and ensure the sealing in the vacuum space, a hollow connecting rod 4 is set between the cabinet 1 and the shell 2, and the transmission shaft can pass through the shell 2 through the connecting rod 4 to connect with the outside world. Both ends of the connecting rod 4 can be welded to the cabinet 1 and the shell 2 to achieve a sealed connection.

[0072] After isolating the external environment, the power generation device 5 in the cabinet 1 will generate heat during operation. If it is not cooled down, the power generation device 5 in the cabinet 1 will be at risk of failure at high temperature. Therefore, it is necessary to cool down the power generation device 5. Specifically, a gas cylinder 6 is arranged in the vacuum space, which can be hoisted on the shell 2. The environment in which the gas cylinder 6 is located is a vacuum environment, and the thermal insulation requirements of the gas cylinder 6 can be appropriately reduced. The gas cylinder 6 can be used to hold some low-temperature fluid, such as liquid nitrogen with excellent cooling effect. The outlet of the gas cylinder 6 is connected to an output pipe 7, which passes through the cabinet 1 to output low-temperature gas to the power generation device 5, neutralizes the heat generated by the power generation device 5, and thereby keeps the temperature of the entire cabinet 1 within a reasonable range.

[0073] It should be noted that after the line of the power generation device 5 passes through the connecting rod 4, a heat insulating sealing material can be used to seal the connecting rod 4 to prevent heat transfer.

[0074] In some embodiments of the present invention, the power generation mechanism further includes a water cooling device and a flow regulating device;

[0075] The water cooling device includes a circulation pipe 8 filled with water and a power device 9. The circulation pipe 8 is arranged beside the power generation device 5 to cool the power generation device 5. The power device 9 is used to drive the circulation of the cooling fluid in the circulation pipe 8. The circulation pipe 8 is provided with a temperature-sensitive hydrogel 10.

[0076] The flow regulating device includes a pressure plate 11, a transmission device and a baffle 12 arranged in the circulation pipeline 8. The plane where the pressure plate 11 is located intersects with the water flow direction in the circulation pipeline 8. The pressure plate 11 is connected to the baffle 12 through the transmission device. The baffle 12 is movably arranged inside the output pipeline 7.

[0077] The thermosensitive hydrogel 10 in the circulation pipe 8 absorbs heat and changes phase to shrink to speed up the flow rate, thereby driving the pressure plate 11 to move. The movement of the pressure plate 11 is transmitted to the baffle 12 through the transmission device to control the baffle 12 to slide and release more cooling fluid.

[0078] The low-temperature fluid in the gas cylinder 6 is relatively expensive. In order to further reduce the cost, a water cooling device is designed to be used in conjunction with the gas cylinder 6 to dissipate heat and keep the power generation mechanism warm. When dissipating heat, the water in the circulation pipe 8 first absorbs the heat of the power generation device 5 to cool the power generation device 5. Through the water circulation in the circulation pipe 8, part of the high-temperature water in the part of the circulation pipe 8 close to the power generation device 5 flows, and the subsequent low-temperature water replenishment continues to absorb heat. Water has a high specific heat capacity and can absorb a sufficiently high amount of heat within a certain period of time. However, when the power generation device 5 is running at high power or for a long time, the overall temperature of the water in the circulation pipe 8 rises and the cooling effect is weakened. At this time, the temperature of the thermosensitive hydrogel 10 in the circulation pipe 8 rises to the phase transition temperature, and water cooling is performed. When the water in the circulation pipe 8 rises to the phase transition temperature of the thermosensitive hydrogel 10, the thermosensitive hydrogel 10 shrinks to a solid state, which makes the water flow rate in the circulation pipe 8 faster, and then presses down the pressure plate 11. The transmission device transmits the power of the pressure plate 11 to the baffle 12 through the transmission device. The baffle 12 moves to reduce the obstruction of the cross section of the output pipe 7, so that the outlet of the output pipe 7 starts or increases the output of the cooling fluid. In the whole process, the low-temperature gas in the gas cylinder 6 can be reasonably output according to the temperature in the cabinet 1, which improves the insulation efficiency of the low-temperature fluid in the gas cylinder 6. In addition, a relatively closed environment is maintained in the cabinet 1, and the cooling of the power generation device 5 does not require a large amount of air for heat exchange, which can reduce the dust in the air from entering its interior.

[0079] In this embodiment, the cryogenic fluid may be liquid nitrogen or liquid carbon dioxide. The power device 9 may be a propeller or a pump.

[0080] It should be noted that the thermosensitive hydrogel 10 having a suitable phase transition temperature can be flexibly selected according to the heat dissipation requirements.

[0081] In this embodiment, the thermosensitive hydrogel 10 can be a PNIPAAm-PEG thermosensitive hydrogel 10: its transition temperature (also called lower critical solution temperature, LCST) is usually around 20° C. This means that when the temperature is below 20° C., the hydrogel is in a liquid state, and when the temperature is above 20° C., it turns into a gel state.

[0082] The thermosensitive hydrogel 10 may also be a PLGA-PEG-PLGA thermosensitive hydrogel 10: the phase transition temperature of this hydrogel is usually near body temperature, for example, about 35±2° C. This enables it to respond to physiological conditions and achieve local controlled drug release in in vivo applications.

[0083] The thermosensitive hydrogel 10 can also be a polyethylene glycol polylactic acid thermosensitive hydrogel 10: its phase transition temperature can be controlled at 38.5-40° C. This temperature range can better preserve water, and when the temperature is higher than the phase transition temperature, the hydrogel will lose water significantly in a short time.

[0084] The phase transition temperature of the thermosensitive hydrogel 10 is affected by many factors, including the type, concentration, molecular weight, cross-linking degree of the polymer and external conditions (such as pH value, ionic strength, etc.).

[0085] It should be noted that, in order to better reflect the structure of the present application, the drawings only show one modular power generation device 5. Of course, when there are multiple power generation devices 5, the positions of other devices can be adaptively adjusted according to the position of the power generation device 5.

[0086] In this embodiment, the cross section of the circulation pipe 8 can be designed to be rounded, so that the flow rate in the circulation pipe 8 is more uniform. The temperature-sensitive hydrogel 10 can be fixed on the inner wall of the circulation pipe 8.

[0087] In some embodiments of the present invention, the cabinet 1 is provided with an air vent 13, the shell 2 is provided with an exhaust hole 14, and the two ends of the suspension rod 3 are respectively sealed and connected to the edge of the air vent 13 and the edge of the exhaust hole 14, so that the interior of the cabinet 1 is connected with the outside world through the suspension rod 3, and the air vent 13 is covered with a shape memory polymer 15 that is deformed by temperature stimulation, and the shape memory polymer 15 includes an initial shape in the form of a plate, and the shape memory polymer 15 of the initial shape blocks the air vent 13.

[0088] When the temperature in the cabinet 1 rises and the temperature of the shape memory polymer 15 reaches above the glass transition temperature Tg, the shape memory polymer 15 softens. At this time, due to the high temperature in the cabinet 1, the cryogenic fluid in the gas cylinder 6 is continuously released, and while the temperature is lowered, the air pressure in the cabinet 1 increases. At this time, the gas, under the action of the air pressure, can impact the shape memory polymer 15 through the air vents 13, causing it to deform. The increased air pressure is released at the softened shape memory polymer 15, keeping the air pressure in the cabinet 1 stable, and using the gas in the gas cylinder 6 to discharge smoothly. When the gas in the cabinet 1 continuously outputs the cryogenic fluid, the temperature of the gas in the cabinet 1 continues to decrease. After the temperature drops, the thermosensitive hydrogel 10 in the circulation channel swells, causing the flow rate to slow down, and the baffle 12 is lifted, reducing or stopping the output of the cryogenic fluid from the gas cylinder 6. When the gases inside and outside the cabinet 1 tend to be balanced, the shape memory polymer 15 above the Tg temperature overcomes the small pressure difference under the action of the deformation force and returns to the original shape of the closed air vent 13. As the temperature of the shape memory polymer 15 drops below the Tg temperature, the shape memory polymer 15 hardens and maintains the original shape of the closed air vent 13.

[0089] It is understandable that in order to improve the deformation sensitivity of the shape memory polymer 15 , a shape memory polymer 15 with a low Tg temperature may be selected.

[0090] It should be noted that the shape memory polymer 15 with a suitable phase transition temperature can be selected according to the requirements. For example, the shape memory polymer 15 can be any one of polyurethane, polymethyl acrylate, polyester and polyvinyl alcohol.

[0091] In some embodiments of the present invention, an electromagnet 16 is disposed on one side of the vent hole 13 away from the shape memory polymer 15 , magnetic particles are distributed inside the shape memory polymer 15 , and the electromagnet 16 is connected in series with a thermistor 17 with a positive temperature coefficient.

[0092] In this embodiment, when the temperature in the cabinet 1 is higher than the glass transition temperature, the shape memory polymer 15 becomes soft, and as the low-temperature gas is continuously released, the pressure in the cabinet 1 becomes higher. At this time, the temperature of the temperature-sensitive resistor 17 is higher, the resistance is larger, the current of the electromagnet 16 is smaller, and the magnetic force generated on the shape memory polymer 15 is smaller. Under the action of pressure, the softened shape memory polymer 15 opens the air vent 13, discharges the gas, and balances the pressure. As the temperature in the cabinet 1 continues to decrease, the gas in the cabinet 1 is continuously discharged and the pressure is reduced, the resistance of the temperature-sensitive resistor 17 decreases, the current of the electromagnet 16 increases, and the magnetic force generated on the shape memory polymer 15 becomes larger. As the magnetic force increases, the pressure decreases. At the same time, the softened shape memory polymer 15 has a deformation force to restore to the initial shape. Under the joint action of multiple factors, the shape memory polymer 15 quickly returns to the initial shape to close the air vent 13. As the temperature of the shape memory polymer 15 further drops below the glass transition temperature, it hardens and maintains a stable state of closing the air vent 13.

[0093] In some embodiments of the present invention, the ventilation hole 13 is disposed on the top of the cabinet 1 .

[0094] In this embodiment, the low-temperature gas output from the gas cylinder 6 has a relatively low temperature and will shrink and drop in the cabinet 1, while the original high-temperature gas in the cabinet 1 expands and rises. The rising hot air flow heats the shape memory polymer 15 to soften it and then discharge it from the cabinet 1.

[0095] In some embodiments of the present invention, a spring 18 is connected between the pressure plate 11 and the circulation pipe 8, and the spring 18 is used to lift the pressure plate 11 when the water flow rate in the circulation pipe 8 decreases.

[0096] In this embodiment, when the spring 18 is set to slow down the flow rate of water in the circulation pipe 8, the pressure plate 11 is lifted under the action of the spring 18, and then the baffle 12 is controlled by the transmission device to close the output pipe 7 again.

[0097] In some embodiments of the present invention, the transmission device includes a first transmission shaft 19, a hydraulic pipeline 20 and a second transmission shaft 21. The circulation pipeline 8 includes a through hole with the same diameter as the first transmission shaft 19. The first transmission shaft 19 is inserted into the circulation pipeline 8. A groove is provided in the through hole. A sealing ring is provided in the groove. The two ends of the first transmission shaft 19 are respectively connected to the pressure plate 11 and the first top plug 22 at one end of the hydraulic pipeline 20. A second top plug 23 is provided at the other end of the hydraulic pipeline 20. The second top plug 23 is connected to the second transmission shaft 21. The second transmission shaft 21 is connected to the baffle 12. The first top plug 22 and the second top plug 23 are transmitted through the hydraulic oil in the hydraulic pipeline 20.

[0098] In this embodiment, the force of water in the circulation pipe 8 on the pressure plate 11 can be transmitted to the baffle 12 by means of hydraulic transmission. The sealing ring can maintain the sealing of the circulation pipe 8 while the first transmission shaft 19 moves.

[0099] In some embodiments of the present invention, the cross-sectional area of ​​the second top plug 23 is greater than the cross-sectional area of ​​the first top plug 22 .

[0100] In this embodiment, according to Pascal's law, the relatively small force of the water flow on the pressure plate 11 can be amplified by setting a difference in cross-sectional area between the first top plug 22 and the second top plug 23, so that the transmission force on the baffle 12 is doubled.

[0101] In some embodiments of the present invention, a thermosensitive hydrogel 10 with different phase transition temperatures is provided in the circulation pipe 8. Such a configuration can make the water flow rate change more smoothly with the temperature, and make the amount of cryogenic fluid output by the gas cylinder 6 more closely related to the temperature of the water in the circulation pipe 8.

[0102] In some embodiments of the present invention, the material used to make the shell 2 includes thermal insulation material.

[0103] It should also be noted that the structures in the present invention that can be movably inserted into the cabinet 1 can all be used through shafts and holes of the same size and cooperate with sealing rings to achieve dynamic sealing.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for maintaining stable operation of wind power generation, characterized in that: Based on a wind power generation system, the wind power generation system includes a wind turbine device and a power generation mechanism, the wind turbine device includes blades and a rotating shaft, and the rotating shaft is connected to a power generation device; The power generation mechanism comprises a cabinet, a shell and a gas cylinder; The power generation device is arranged in the cabinet, the cabinet is arranged inside the shell through a hollow suspension rod, a hollow connecting rod is further arranged between the cabinet and the shell, the two ends of the connecting rod connect the space inside the cabinet and the space outside the shell, the line of the power generation device passes through the shell through the connecting rod, and the space between the cabinet and the shell is a vacuum environment; The gas cylinder is arranged in the vacuum space, the gas cylinder is used to contain cooling fluid, the outlet of the gas cylinder is connected to the output pipe, the output pipe penetrates the cabinet, the outer wall of the output pipe is in sealing contact with the through hole on the cabinet for penetrating the output pipe, and the outlet of the output pipe faces the power generation device; The method comprises: Using wind power to rotate the blades; Using the rotating shaft to transmit mechanical energy to the power generation device; Using the vacuum space to keep the cabinet warm; Utilizing the gas cylinder to output cooling fluid to cool the power generation device; The power generation mechanism also includes a water cooling device and a flow regulating device; The water cooling device comprises a circulation pipeline filled with water and a power device, wherein the circulation pipeline is arranged beside the power generation device to cool the power generation device, and the power device is used to drive the circulation of the cooling fluid in the circulation pipeline, and the circulation pipeline is provided with a temperature-sensitive hydrogel; The flow regulating device comprises a pressure plate, a transmission device and a baffle plate arranged in the circulation pipeline, the plane where the pressure plate is located intersects with the water flow direction in the circulation pipeline, the pressure plate is connected to the baffle plate through the transmission device, and the baffle plate is movably arranged inside the output pipeline; The thermosensitive hydrogel in the circulation pipeline absorbs heat and undergoes phase change to shrink to speed up the flow rate, thereby driving the pressure plate to move. The movement of the pressure plate is transmitted to the baffle through the transmission device to control the baffle to slide and release more of the cooling fluid.

2. The method according to claim 1, characterized in that The cabinet is provided with an air vent, and the shell is provided with an exhaust hole. The two ends of the suspension rod are respectively sealed and connected to the edge of the air vent and the edge of the exhaust hole, so that the interior of the cabinet is connected with the outside through the suspension rod. The air vent is covered with a shape memory polymer that is deformed by temperature stimulation, and the shape memory polymer includes an initial shape in the form of a plate. The shape memory polymer in the initial shape blocks the air vent.

3. The method according to claim 2, characterized in that An electromagnet is arranged on one side of the air vent away from the shape memory polymer, magnetic particles are distributed inside the shape memory polymer, and the electromagnet is connected in series with a thermistor with a positive temperature coefficient.

4. The method according to claim 2, characterized in that: The air vent is arranged on the top of the cabinet.

5. The method according to claim 1, characterized in that A spring is connected between the pressure plate and the circulation pipeline, and the spring is used to lift the pressure plate when the water flow rate in the circulation pipeline decreases.

6. The method according to claim 5, characterized in that The transmission device includes a first transmission shaft, a hydraulic pipeline and a second transmission shaft. The circulation pipeline includes a through hole with the same diameter as the first transmission shaft. The first transmission shaft is inserted into the circulation pipeline. A groove is provided in the through hole. A sealing ring is provided in the groove. The two ends of the first transmission shaft are respectively connected to the pressure plate and the first top plug at one end of the hydraulic pipeline. The other end of the hydraulic pipeline is provided with a second top plug. The second top plug is connected to the second transmission shaft. The second transmission shaft is connected to a baffle. The first top plug and the second top plug are transmitted through the hydraulic oil in the hydraulic pipeline.

7. The method according to claim 6, characterized in that The cross-sectional area of ​​the second top plug is greater than the cross-sectional area of ​​the first top plug.

8. The method according to claim 1, characterized in that The thermosensitive hydrogels with different phase transition temperatures are arranged in the circulation pipeline.

9. The method according to claim 1, characterized in that: The shell is made of thermal insulation materials.

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