A wind power generation and heat dissipation device based on thermal pressure difference

Abstract

This invention discloses a wind power generation and heat dissipation device based on thermal pressure difference, belonging to the field of industrial waste heat recovery and heat dissipation technology. The wind power generation and heat dissipation device based on thermal pressure difference includes a gas collecting pipe and a power generation device. The gas collecting pipe has an air inlet and an air outlet at its two ends, respectively. The air outlet has a contraction section with a decreasing inner diameter and an expansion section with an increasing inner diameter along the exhaust direction. The power generation device includes a rotor, a stator, and a main turbine. The rotor is rotatably mounted on the outside of the air outlet of the gas collecting pipe. The stator is fixedly mounted on the outside of the air outlet and moves relative to the rotor. The main turbine is mounted on the rotor and located on the air outlet path of the gas collecting pipe. The rotor is connected to an auxiliary turbine. The sidewall of the expansion section of the gas collecting pipe has several side holes, and the auxiliary turbine rotates with the rotor to drive external air into the gas collecting pipe through the side holes. The purpose of this invention is to solve the problem in the prior art where installing a power generation device inside the exhaust duct severely obstructs airflow and deteriorates the heat dissipation effect, resulting in a tradeoff between power generation and heat dissipation.

Description

Technical Field

[0001] This invention relates to the field of industrial waste heat recovery and heat dissipation technology, and in particular to a wind power generation and heat dissipation device based on thermal pressure difference. Background Technology

[0002] In numerous industrial settings such as data centers, communication base stations, and power equipment, when using air cooling to dissipate heat from high-heat-generating equipment, the generated hot air typically carries a certain amount of heat and kinetic energy and is directly discharged into the atmosphere through exhaust ducts. Under current technological conditions, if conventional wind turbine blades are directly installed inside the exhaust ducts for energy conservation, the power generation device would be placed in the center of the airflow, becoming an obstruction within the duct. This significantly increases exhaust airflow resistance, causing a sharp decrease in natural convection airflow, severely deteriorating the equipment's heat dissipation effect, and easily leading to overheating and damage. Therefore, existing exhaust cooling and energy recovery systems generally present a prominent technical contradiction: power generation and heat dissipation cannot be simultaneously achieved. There is currently no device that can simultaneously achieve efficient natural ventilation cooling and power generation. Summary of the Invention

[0003] The purpose of this invention is to solve the problem that installing a power generation device in the exhaust duct in the prior art will seriously obstruct airflow and worsen the heat dissipation effect, resulting in a situation where power generation and heat dissipation cannot be achieved simultaneously. Therefore, this invention proposes a wind power generation and heat dissipation device based on thermal pressure difference.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A wind power generation and heat dissipation device based on thermal pressure difference, comprising: The air collection pipe has an air inlet and an air outlet at its two ends, respectively. The air outlet is provided with a contraction section with a gradually decreasing inner diameter and an expansion section with a gradually increasing inner diameter along the exhaust direction. The power generation device includes a rotor, a stator, and a main turbine; the rotor is cylindrical and is rotatably sleeved on the outside of the air outlet end of the gas collecting pipe; the stator is fixedly installed on the outside of the air outlet end and moves relative to the rotor; the main turbine is installed on the rotor and located on the air outlet path of the gas collecting pipe. The rotor is also connected to an auxiliary turbine; the expansion section of the gas collecting pipe has several side holes that connect the inner and outer sides. The auxiliary turbine rotates with the rotor to drive external air into the gas collecting pipe through the side holes.

[0005] In some embodiments, at the minimum cross-section formed between the contraction section and the expansion section, the main turbine is located downstream of the minimum cross-section to receive the gas impact after acceleration.

[0006] In some embodiments, the main turbine includes a hub and a plurality of fan blades, the plurality of fan blades being arranged around the inner sidewall of the hub, one end of the fan blades being connected to the hub, and the other end being connected to each other and converging at the shaft.

[0007] In some embodiments, the secondary turbine includes a hub and a plurality of blades, the blades being arranged around the inner wall of the hub, and the airflow generated by the blades of the secondary turbine when rotating is directed towards the side hole.

[0008] In some embodiments, the auxiliary turbine is located at one end of the rotor near the side hole. When the auxiliary turbine rotates with the rotor, its blades form a pressurization zone between the outer wall of the gas collecting pipe and the rotor, forcing external cold air to be injected into the expansion section of the gas collecting pipe through the side hole.

[0009] In some embodiments, the side holes are inclined toward the air outlet of the air collecting pipe, so that the flow direction of the external air introduced by the auxiliary turbine forms an angle with the inclination direction of the inner wall of the expansion section of the air collecting pipe.

[0010] In some embodiments, a bearing is provided at the edge of the air outlet end of the air collecting pipe; an abutment ring extends inward from the end of the rotor near the air outlet end; the abutment ring overlaps and is supported on the bearing.

[0011] In some embodiments, a fixing frame is further included; the fixing frame includes a fixing ring and a plurality of support columns, the fixing ring being sleeved on the outer wall of the gas collecting pipe, and the plurality of support columns being connected between the fixing ring and the stator.

[0012] In some embodiments, the stator is connected to the power supply via lines and a controller; the controller is used to switch between power generation mode and heat dissipation mode.

[0013] In some embodiments, in power generation mode, the controller converts the alternating current generated by the power generation device into direct current and stores or supplies it to the load; in heat dissipation mode, the controller cuts off the power generation load or inputs alternating current to the stator to drive the rotor to rotate, so that the main turbine and the auxiliary turbine actively maintain operation.

[0014] Compared with the prior art, the present invention provides a wind power generation and heat dissipation device based on thermal pressure difference, which has the following beneficial effects.

[0015] 1. This invention discloses a wind power generation and heat dissipation device based on thermal pressure difference. By placing the main turbine downstream of the smallest cross-section of the gas collecting pipe and connecting it to the outside, and simultaneously opening a side hole in the gas collecting pipe and configuring an auxiliary turbine that moves in tandem with the rotor, the axial flow power generation structure at the center of the pipe is transferred to the outside of the pipe wall. While utilizing the main turbine to recover thermal pressure difference for power generation, the auxiliary turbine forcibly injects external cold air into the expansion section, avoiding blockage of the main exhaust channel by the power generation device, and even accelerating exhaust through forced injection, thus resolving the fundamental contradiction that power generation and heat dissipation cannot be simultaneously achieved. 2. This invention provides a wind power generation and heat dissipation device based on thermal pressure difference. By setting a controller to intelligently switch between power generation and heat dissipation modes, it can cut off the power generation load or actively input current into the stator to electrically assist the rotor rotation when the thermal pressure difference is insufficient or the equipment temperature is too high. In this way, not only is the risk of rotor stalling and subsequent pipe blockage caused by excessive power generation load eliminated, but the device can also transform from a generator into a forced exhaust fan under extreme operating conditions, achieving all-time adaptive heat dissipation protection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic internal cross-sectional view of the present invention.

[0018] Figure 3 For the appendix Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 For the appendix Figure 2 Enlarged view of point B in the middle.

[0020] Figure 5 This is a schematic diagram of the internal cross-section of the gas collecting pipe.

[0021] Figure 6 For the appendix Figure 5 Enlarged view of point C in the middle.

[0022] Figure 7 This is a schematic diagram of the internal cross-section of the rotor.

[0023] Figure 8 For the appendix Figure 7 Enlarged view of point D in the middle.

[0024] Figure 9 This is a schematic diagram of the overall disassembled structure of the present invention.

[0025] Figure 10 This is a cross-sectional view of the stator and rotor assembly.

[0026] In the picture: 1-Gas collecting pipe, 101-Contraction section, 102-Expansion section, 103-Side hole, 104-First placement slot, 201-Retaining ring, 202-Stator, 203-Fixing ring, 204-Support column, 205-Rotor, 206-Main turbine, 207-Auxiliary turbine, 208-Bearing, 209-Abutment ring, 210-Second placement slot. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] Reference Figure 1-10 This invention discloses a wind power generation and heat dissipation device based on thermal pressure difference. Its core inventive concept lies in the breakthrough of structural decoupling and functional reorganization of the power generation functional unit and the airflow channel, thereby cleverly resolving the inherent contradiction of mutual restriction and mutual restraint between power generation and heat dissipation in traditional integrated design.

[0029] The device is mainly composed of two parts: a gas collecting pipe 1 and a power generation unit. The gas collecting pipe 1 forms the core channel for the directional flow of hot air, with clearly defined functions at both ends: one end is the air inlet, used to connect with the exhaust ports of heat-generating equipment such as server racks and industrial equipment vents to receive the airflow carrying residual heat; the other end is the air outlet, used to finally discharge the treated gas to the external environment. The gas collecting pipe 1 is arranged vertically or roughly vertically, with the air inlet at a lower position and the air outlet at a higher position, thus conforming to the natural upward movement of hot air. Inside the air outlet of the gas collecting pipe 1, along the direction of hot air flow, there is a constriction section 101 with a gradually narrowing inner diameter and an expansion section 102 with a gradually widening inner diameter, arranged coaxially. The junction of the two sections forms a throat with minimal flow area. The carefully designed tapered configuration of the contraction section 101 can converge and accelerate the rising hot air from the air inlet. With the help of the Venturi effect, it can efficiently convert the originally weak and dispersed thermal pressure potential energy in the airflow into concentrated and considerable dynamic pressure energy. The expansion section 102 plays the role of diffuser and rectifier in the airflow discharge stage, guiding the airflow to smoothly decelerate and diffuse, and providing space for subsequent mixing of hot and cold air.

[0030] In this structure, the hot air exhausted from the heating device first converges in the contraction section 101, resulting in a higher gas temperature and lower density in this area. The expansion section 102, connected to the ambient air, contains mostly unheated, room-temperature air, which is relatively cooler and denser. The vertical placement of the air collecting pipe 1 creates a significant effective height difference h between the contraction section 101 and the expansion section 102, where temperature and density differ. Under the influence of gravity, the air columns on both sides experience a weight difference due to their density difference, resulting in an upward thermal pressure difference at the bottom, the magnitude of which can be determined by the formula ΔP = (ρcold − ρhot)gh. This thermal pressure difference, generated by the combined effect of temperature and height, acts as a continuous natural driving force, propelling the hot air steadily from the lower contraction section 101 to the higher expansion section 102, providing the fundamental airflow energy source for the entire device.

[0031] The power generation section of this device innovatively employs a cylindrical external rotor 205 structure, mainly consisting of a rotatable rotor 205, a matching stationary stator 202, and a main turbine 206 for capturing airflow energy. Uniquely, the rotor 205 is designed as a hollow cylinder, rotatably fitted coaxially onto the outer wall of the air outlet of the air collection pipe 1, rather than having the impeller placed in the center of the pipe as in traditional fans. This external layout maximizes the unobstructed flow in the central area of ​​the air collection pipe 1, avoiding any obstruction or disturbance to the main airflow from internal support structures, ensuring that the output air volume is unaffected. The stator 202 is coaxially fixedly installed on the periphery of the air outlet of the air collection pipe 1, corresponding to the inner or outer wall of the rotor 205. Through the cooperation of permanent magnets and coils, the mechanical energy of the rotor 205's rotation is converted into electrical energy using the principle of electromagnetic induction. The main turbine 206 is rigidly fixed to the front end of the rotor 205 and is precisely located in the air outlet path of the gas collecting pipe 1. When the high-energy hot airflow accelerated by the converging section 101 is ejected outward from the air outlet, it directly impacts the blades of the main turbine 206, driving the main turbine 206 to rotate, which in turn drives the entire cylindrical rotor 205 to rotate around the axis of the gas collecting pipe 1, thus smoothly completing the power generation operation.

[0032] More specifically, the rotor 205 not only drives the main turbine 206, but also synchronously connects to an auxiliary turbine 207 at its other axial end. Meanwhile, several side holes 103 are circumferentially opened on the side wall of the expansion section 102 of the air collecting pipe 1, connecting the inner and outer spaces of the air collecting pipe 1. When the rotor 205 rotates, the auxiliary turbine 207 rotates at high speed, its blades agitating and compressing the air in the annular space formed between the outer wall of the air collecting pipe 1 and the inner wall of the rotor 205, actively establishing a local high-pressure zone, forcibly squeezing and blowing cold air from the outside environment into the air collecting pipe 1 through these side holes 103. Furthermore, because the main airflow within the expansion section 102 is in a high-speed flow state, according to Bernoulli's principle, a certain negative pressure is formed inside, thereby creating a suction effect on the side holes 103, naturally drawing in external air. With the synergistic effect of these two methods, the combination of active pressurization injection and negative pressure suction allows cold air from the outside to be rapidly, stably, and in sufficient quantity to enter the expansion section 102 of the gas collecting pipe 1 through the side hole 103. This additional airflow not only increases the total flow rate of the expansion section 102, but also enhances the overall flow velocity within the pipe through mass injection, which in turn acts on the main turbine 206, accelerating its rotational speed and effectively improving power generation efficiency.

[0033] This structural layout achieves deep functional synergy and mutual enhancement: the main turbine 206, located inside the duct, focuses on capturing the energy contained in the thermal pressure difference and converting it into electrical energy; while the auxiliary turbine 207, synchronously driven by the same rotor 205, performs work outside the duct, actively injecting low-temperature ambient air into the expansion section 102. This injected cold air plays multiple positive roles. First, it directly dilutes and cools the exhaust gas flow, significantly reducing the exhaust temperature; second, the high-speed jet of cold air carries momentum and turbulent kinetic energy, significantly inducing and accelerating the main airflow within the expansion section 102, acting like a pneumatic amplifier to actively assist in drawing in hot air from the collection pipe 1, thereby enhancing the overall ventilation and heat dissipation driving force of the system. Therefore, this device not only recovers electrical energy from waste heat, but also, unlike traditional drag-type energy recovery devices, does not hinder exhaust ventilation during energy recovery; on the contrary, it may further enhance the overall ventilation and heat dissipation capacity, fundamentally resolving the technical problem of power generation and heat dissipation being mutually restrictive in the background technology.

[0034] like Figure 2 As shown, in one specific embodiment, the air inlet of the air collecting pipe 1 is specifically designed for tight connection with various heat source exhaust interfaces, such as the hot air outlet of the server rack and the heat dissipation exhaust vent of industrial equipment. To ensure the reliability and airtightness of the connection, a flange connection is preferred. Through bolt tightening and sealing gaskets, hot air leakage is prevented, ensuring that all hot airflow is smoothly introduced into the air collecting pipe 1. After the airflow carrying residual heat enters the air collecting pipe 1 from the air inlet, it first flows through the carefully designed contraction section 101. The inner wall of the contraction section 101 presents a smooth, continuous streamlined curved surface, with its inner diameter gradually decreasing, ultimately forming a throat with a minimal cross-sectional area at the junction with the expansion section 102. According to the basic principles of fluid mechanics, when the airflow passes through this gradually narrowing channel, the flow velocity increases significantly due to the reduced flow area, while the static pressure decreases accordingly. This process efficiently converts the originally weak and dispersed natural thermal pressure difference into a concentrated, high-speed airflow energy, enabling it to impact a turbine and perform work.

[0035] like Figure 5As shown, the main turbine 206 is precisely positioned downstream of the minimum cross-section of the throat, inside the outlet end of the air collecting pipe 1. This arrangement allows the main turbine 206 to directly receive the high-speed airflow accelerated by the contraction section 101, thereby maximizing the capture of its kinetic energy. Structurally, the main turbine 206 comprises an annular hub and several blades fixed to its inner wall. The radially outer ends of these blades are firmly connected to the hub, while the radially inner ends extend uniformly towards the axial centerline, ultimately converging at the center to form a robust, rigid axial-flow impeller. When the high-speed hot airflow axially blows across these blades, the blades experience aerodynamic thrust, causing the entire cylindrical rotor 205, which is fixed to them, to begin rotating smoothly.

[0036] like Figure 6 As shown, rotor 205, as the core moving component for energy transfer and functional conversion, is a large-diameter, thin-walled cylindrical member, coaxially fitted onto the outside of the air collecting pipe 1. The end edge of rotor 205 near the air outlet is fixedly connected to the hub of the main turbine 206, thereby directly transmitting the torque captured by the turbine to the entire rotor 205. To ensure that rotor 205 can rotate smoothly with extremely low frictional resistance and excellent coaxiality, a first placement groove 104 is machined on the edge of the air outlet of air collecting pipe 1, and a precision bearing 208 is installed in the groove; a ring-shaped abutment ring 209 extends inward from the corresponding end of rotor 205, which sits precisely on the bearing 208, forming a rolling support. This design enables rotor 205 to achieve reliable rotational positioning on the outer wall of air collecting pipe 1, bearing both axial and radial loads while minimizing rotational friction.

[0037] like Figure 7 As shown, the auxiliary turbine 207, a key component for actively enhancing heat dissipation, is installed at the end of the rotor 205 axially away from the main turbine 206, corresponding to the position of the side hole 103 on the upper side of the air collecting pipe 1. Similar to the main turbine 206, the auxiliary turbine 207 also consists of an annular hub and several blades, with the blades evenly distributed along the circumference inside the hub. The blade installation angle and orientation of the auxiliary turbine 207 have been aerodynamically optimized to ensure that the airflow driven by it when rotating with the rotor 205 is directly aligned with the side hole 103 opened on the side wall of the expansion section 102 of the air collecting pipe 1. When the rotor 205 drives the auxiliary turbine 207 to rotate rapidly, the blades of the auxiliary turbine 207 are agitated at high speed in the relatively closed annular cavity formed by the outer wall of the air collecting pipe 1 and the inner wall of the rotor 205, forming a dynamic pressurization zone. As the pressure in this area continues to rise, the cold air from the outside environment is forcibly compressed and violently injected into the expansion section 102 of the air collecting pipe 1 in the form of a high-speed jet through the side hole 103.

[0038] Specifically, such as Figure 3As shown, to further optimize the heat dissipation and ejection effect of the forced introduction of cold air, the side hole 103 is specially machined to be inclined towards the air outlet of the air collecting pipe 1, that is, its axis forms a certain backward tilt angle with the wall of the expansion section 102. In this way, when the cold air jet injected by the auxiliary turbine 207 enters the expansion section 102, its velocity direction forms an optimized cross angle with the expansion direction of the inner wall of the expansion section 102, which is originally inclined outward. This cold air jet with a specific incident angle can powerfully penetrate and violently agitate the hot air boundary layer and laminar sublayer that develop along the inner wall of the expansion section 102, causing the injected cold air to undergo sufficient and violent forced convection mixing and heat exchange with the mainstream hot air, thereby efficiently and rapidly reducing the overall temperature of the exhaust. More importantly, the momentum and specific direction carried by this high-speed cold air jet will also produce a significant ejector pumping effect on the main airflow in the expansion section 102 during the mixing process, just like a pneumatic ejector, actively assisting in the extraction of hot air from the gas collection pipe 1 and transporting it downstream. Thus, while realizing the power generation function, it further significantly improves the ventilation and heat dissipation efficiency and exhaust capacity of the entire system.

[0039] like Figure 2 , 5 As shown in Figure 9, in one embodiment, the device is also equipped with a mounting bracket to provide stable mechanical support for the external stator 202. This mounting bracket consists of a fixing ring 203 and several support columns 204. The fixing ring 203 is coaxially fitted and securely fixed to the outer wall of the air collecting pipe 1. The lower end of the support columns 204 is connected to the fixing ring 203, and the upper end is connected to the bottom of the stator 202 via a flange structure. These support columns 204 preferably have a thin plate-like cross-section and are arranged radially and evenly around the axis of the air collecting pipe 1. Sufficiently wide fan-shaped gaps are maintained between adjacent support columns 204, forming an intake channel for free and smooth airflow from the outside. This permeability design is crucial: when the auxiliary turbine 207 rotates and draws in air, a large amount of external cold air can pass through the gaps between these support columns 204 without obstruction, reaching the vicinity of the side hole 103 without loss and being drawn into the air collecting pipe 1, completely avoiding obstruction and disturbance of the auxiliary cooling airflow by the fixed structure.

[0040] like Figure 10As shown, in one embodiment, a retaining ring 201 is also provided on the top of the stator 202. The retaining ring 201 abuts against the upper end face of the rotor 205 from above, providing axial restraint for the rotor 205 and effectively preventing undesirable axial movement of the rotor 205 during high-speed rotation. To ensure a stable connection while also considering assembly accuracy and protective sealing, the retaining ring 201 is connected to the top of the stator 202 via a flange structure. A second placement groove 210 is provided on the side of the retaining ring 201 facing the rotor 205, and a bearing 208 is installed in the groove. After the retaining ring 201 is installed in place via the flange, the two sides of the bearing 208 abut tightly against the corresponding end faces of the retaining ring 201 and the rotor 205, respectively, forming another set of low-friction rolling supports. In this way, both the upper and lower ends of the rotor 205 are reliably supported by the bearings 208, achieving smooth rotation with high coaxiality and extremely low friction.

[0041] In one embodiment, the device is equipped with an intelligent control system to manage its operational status. It should be noted that this intelligent control system is not shown in detail in the accompanying drawings, but its implementation can employ sensing, computing, and execution technologies commonly used in industrial control, which will not be elaborated here. Specifically, the stator 202 winding is connected to a multi-functional controller via a cable, and the controller is further connected to a power source, preferably an energy storage battery pack or an external power grid. The controller undertakes the core task of intelligently distinguishing and seamlessly switching between power generation and heat dissipation modes. To this end, it continuously monitors a series of key operating parameters in real time, including but not limited to the real-time operating temperature of the equipment, the rotational speed of the rotor 205, and the voltage and current of the power generation output.

[0042] When the system is in its normal operating range, i.e., when the heat generated by the heating equipment is stable and the established thermal pressure difference is sufficiently strong, the controller automatically puts the device into power generation mode. In this mode, the rising hot airflow drives the main turbine 206 to rotate, which in turn drives the cylindrical rotor 205 to rotate. The permanent magnet mounted on the rotor 205 generates relative motion with the fixed stator coil 202, generating alternating current through electromagnetic induction. The rectifier circuit inside the controller quickly operates to rectify and filter the generated alternating current into stable direct current, which is then directly supplied to the DC load or charged into the connected energy storage battery according to the strategy, realizing the recovery and utilization of waste heat energy.

[0043] Once the system detects through sensors that the equipment temperature has risen and exceeded a preset safety threshold, or that insufficient intake thermal pressure difference has caused a significant drop in rotor 205 speed, potentially weakening normal exhaust capacity, the controller will immediately or smoothly switch to cooling mode. In this mode, the controller provides two progressive operating strategies. The first strategy is to actively disconnect the generator load, i.e., stop extracting electrical energy from the generator, freeing rotor 205 from the drag of electromagnetic braking torque, and allowing it to rotate freely under no-load or light-load conditions. At this time, the main turbine 206 mainly acts as a turbulence fan, maintaining a basic airflow channel; while the auxiliary turbine 207 acts as a highly efficient ejector fan, maintaining maximum forced ventilation and cold air injection with extremely low resistance loss. The second strategy addresses more extreme operating conditions: if the thermal pressure difference is completely unable to maintain rotor 205 rotation, or even if airflow stagnation occurs, the controller will draw electrical energy from the connected energy storage battery or grid, convert it into controllable alternating current through the inverter circuit, and then input it into the stator 202 coil. At this point, the entire device switches to a single electric axial fan, with the rotor 205 directly driven by electricity. The main turbine 206 and auxiliary turbine 207 are actively driven to operate, forcibly exhausting air and drawing out heat, continuously removing heat until the equipment temperature safely returns to the normal range. This intelligent control strategy ensures that heat dissipation safety is always the highest priority under all circumstances.

[0044] The working principle of the wind power generation and heat dissipation device based on thermal pressure difference of the present invention is as follows: The hot air generated by heat sources such as industrial equipment and data center cabinets creates a slight natural thermal pressure difference from bottom to top within the vertical air collection pipe 1 due to the density difference caused by the temperature difference. This hot air is smoothly drawn into the air collection pipe 1 from the inlet and flows upward under the continuous drive of the thermal pressure difference. The airflow first enters the contraction section 101. Due to the gradual contraction of the flow cross section, the flow velocity increases rapidly, and the static pressure decreases accordingly. The originally weak thermal pressure potential energy is effectively converted into high-speed kinetic energy. After passing through the throat, this high-speed airflow directly impacts the blades of the main turbine 206 located at the outlet, driving the main turbine 206 and causing the cylindrical rotor 205 fixed to it to rotate. The permanent magnet on the rotor 205 induces electromagnetic induction with the externally fixed stator 202 coil, converting the rotational mechanical energy into electrical energy output, realizing the recovery from waste heat energy to electrical energy. At the same time, the rotational motion of the rotor 205 is synchronously transmitted to the auxiliary turbine 207 at the other end. The auxiliary turbine 207 churns at high speed within the annular pressure zone formed outside the gas collecting pipe 1, forcibly injecting cold air from the outside environment into the gas collecting pipe 1 at high speed through the inclined side holes 103 on the side wall of the expansion section 102. These cold air jets are injected into the expansion section 102 at a specific angle, where they strongly mix and exchange heat with the high-temperature main airflow inside, rapidly reducing the exhaust temperature. Furthermore, its ejector effect further accelerates the airflow inside the pipe, playing an auxiliary suction role. Thus, while generating electricity, it not only does not hinder exhaust but also enhances the overall ventilation and heat dissipation capacity.

[0045] Under the management of the intelligent control system, the device can smoothly switch between power generation mode and heat dissipation mode according to the real-time temperature and airflow dynamics of the equipment, ensuring that heat dissipation safety requirements are met first under any operating condition, and truly realizing the integrated function of intelligent, adaptive, and synergistic thermal differential power generation and heat dissipation.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A wind power generation and heat dissipation device based on thermal pressure difference, characterized in that, include: The air collection pipe (1) has an air inlet and an air outlet at its two ends, respectively. The air outlet is provided with a contraction section (101) with a gradually decreasing inner diameter and an expansion section (102) with a gradually increasing inner diameter along the exhaust direction. The power generation device includes a rotor (205), a stator (202), and a main turbine (206); the rotor (205) is cylindrical and is rotatably sleeved on the outside of the air outlet end of the gas collecting pipe (1); the stator (202) is fixedly disposed on the outside of the air outlet end and moves relative to the rotor (205); the main turbine (206) is disposed on the rotor (205) and located on the air outlet path of the gas collecting pipe (1); The rotor (205) is also connected to a secondary turbine (207); the side wall of the expansion section (102) of the gas collecting pipe (1) is provided with several side holes (103) connecting the inner and outer sides. The secondary turbine (207) rotates with the rotor (205) to drive external air to be blown into the gas collecting pipe (1) from the side holes (103).

2. The wind power generation and heat dissipation device based on thermal pressure difference according to claim 1, characterized in that, At the minimum cross-section formed between the contraction section (101) and the expansion section (102), the main turbine (206) is located downstream of the minimum cross-section to receive the gas impact after acceleration.

3. The wind power generation and heat dissipation device based on thermal pressure difference according to claim 1, characterized in that, The main turbine (206) includes a hub and several fan blades. The fan blades are arranged around the inner wall of the hub. One end of each fan blade is connected to the hub, and the other end is connected to each other and converges at the shaft.

4. The wind power generation and heat dissipation device based on thermal pressure difference according to claim 1, characterized in that, The secondary turbine (207) includes a hub and several fan blades, with the fan blades arranged around the inner wall of the hub. When the fan blades of the secondary turbine (207) rotate, the airflow direction is directly opposite to the side hole (103).

5. A wind power generation and heat dissipation device based on thermal pressure difference according to claim 4, characterized in that, The auxiliary turbine (207) is located at one end of the rotor (205) near the side hole (103). When the auxiliary turbine (207) rotates with the rotor (205), its blades form a pressurization zone between the outer wall of the gas collecting pipe (1) and the rotor (205), forcing external cold air to be injected into the expansion section (102) of the gas collecting pipe (1) through the side hole (103).

6. A wind power generation and heat dissipation device based on thermal pressure difference according to claim 5, characterized in that, The side hole (103) is inclined toward the air outlet of the air collecting pipe (1), so that the flow direction of the external air introduced by the auxiliary turbine (207) forms an angle with the inclination direction of the inner wall of the expansion section (102) of the air collecting pipe (1).

7. A wind power generation and heat dissipation device based on thermal pressure difference according to claim 1, characterized in that, The air collection pipe (1) has a bearing (208) at the air outlet edge; the rotor (205) has an abutment ring (209) extending inward from the end near the air outlet; the abutment ring (209) is supported on the bearing (208).

8. A wind power generation and heat dissipation device based on thermal pressure difference according to claim 1, characterized in that, It also includes a fixing frame; the fixing frame includes a fixing ring (203) and a plurality of support columns (204), the fixing ring (203) is sleeved on the outer side wall of the gas collecting pipe (1), and the plurality of support columns (204) are connected between the fixing ring (203) and the stator (202).

9. A wind power generation and heat dissipation device based on thermal pressure difference according to claim 1, characterized in that, The stator (202) is connected to the power source via a line and a controller; the controller is used to switch between power generation mode and heat dissipation mode.

10. A wind power generation and heat dissipation device based on thermal pressure difference according to claim 9, characterized in that, In the power generation mode, the controller converts the alternating current generated by the power generation device into direct current and stores or supplies it to the load; in the heat dissipation mode, the controller cuts off the power generation load or inputs alternating current into the stator (202) to drive the rotor (205) to rotate, so that the main turbine (206) and the auxiliary turbine (207) actively maintain operation.

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