Low-temperature thermal-gas electricity generation apparatus

Abstract

A low-temperature thermal-gas electricity generation apparatus is provided, including an intake pressurization component, an intake fan, an induction stator, an induction disk, and a rotator assembly. The intake pressurization component includes an airflow inlet and an airflow outlet. The intake fan is located at the airflow inlet. The rotator assembly includes a rotation shaft, a rotator, and a phase-difference generator. One end of the rotation shaft is connected to the intake fan, and the other end is connected to the induction disk. The rotator is located between the airflow outlet and the induction stator. The phase-difference generator is connected between the rotator and the rotation shaft. When an intake airflow drives the rotator to perform second rotation, and a preset phase angle difference is formed in a rotation process of the second rotation, the phase-difference generator activates the rotation shaft to perform first rotation

Description

LOW-TEMPERATURE THERMAL-GAS ELECTRICITY GENERATION APPARATUSBACKGROUNDTechnical Field

[0001] A low-temperature thermal-gas electricity generation apparatus, in particular, a low-temperature thermal-gas electricity generation apparatus that can generates electricity by using waste-heat gas, is provided.Related Art

[0002] The current turbine generators utilize the kinetic energy of steam (or high-temperature gas) to drive the rotation of the turbine. The rotational kinetic energy of the turbine is then used to power the generator unit, thereby converting kinetic energy into electrical energy. However, in order to efficiently drive a steam turbine generator, the temperature of the steam typically needs to reach above 200°C to provide sufficient kinetic energy for turbine rotation. Therefore, if low-temperature hot air or waste heat can be used to convert kinetic energy into electricity, it would not only align with the trend toward environmental protection and carbon reduction but also effectively enhance the reuse efficiency of industrial waste heat.SUMMARY

[0003] In view of this, in some embodiments, a low-temperature thermal-gas electricity generation apparatus that converts low-temperature thermal gas into kinetic energy is provided, including an intake pressurization component, an intake fan, an induction stator, an induction disk, and a rotator assembly. The intake pressurization component includes an airflow inlet and an airflow outlet. The intake fan is located at the airflow inlet. The induction stator includes a plurality of induction modules. The rotator assembly includes a rotation shaft, a rotator, and a phase-difference generator. One end of the rotation shaft is connected to the intake fan. The induction disk is connected to the other end of the rotation shaft, and includes a plurality of magnetic elements corresponding to the induction modules. The rotator is located between theairflow outlet and the induction stator. The phase-difference generator is connected between the rotator and the rotation shaft. In response to that an intake airflow drives the rotator to perform second rotation, and a preset phase angle difference is formed in a rotation process of the second rotation, the phase-difference generator activates the rotation shaft to perform first rotation, thereby simultaneously drive the induction disk and the intake fan. In this way, under cooperation of the rotator, the rotation shaft, and the phase-difference generator, the intake fan can be driven to continuously take in an intake airflow and continuously provide kinetic energy for the rotator, to reduce an energy loss when thermal energy is converted into the kinetic energy (the first rotation and the second rotation), and improve entire electricity generation efficiency. In addition, the intake pressurization component includes a plurality of one-way air flow valve components. Due to a unidirectional flowing effect of the one-way air flow valve component, it is ensured that a hot airflow can be unidirectionally sent to the rotator, so that a decrease in a flow volume of the hot airflow and temperature dissipation are reduced.

[0004] Detailed features and advantages of the present invention are described in detail in implementations below, and content of the present invention is sufficient to enable any person skilled in the art to learn technical content of the present invention and implement the present invention based on the technical content. In addition, any person skilled in the art can easily understand an objective and advantages related to the present invention based on the content, patent ranges of this application, and figures that are disclosed in this specification.BRIEF DESCRIPTION OF THE DRAWINGS

[0005] FIG. 1 is a three-dimensional diagram of a low-temperature thermal-gas electricity generation apparatus according to some embodiments of the present invention;

[0006] FIG. 2 is a sectional diagram of a low-temperature thermal-gas electricity generation apparatus in a direction A-A according to some embodiments of the present invention;

[0007] FIG. 3A is a schematic diagram of second rotation of a rotator, indicating that the rotator has not driven a phase-difference generator and a rotation shaft, according to some embodiments of the present invention;

[0008] FIG. 3B is a schematic diagram of second rotation of a rotator, indicating that the rotator drives a phase-difference generator and a rotation shaft, according to some embodiments of the present invention;

[0009] FIG. 4 is a schematic diagram of a configuration of a magnetic element in a rotator according to some embodiments of the present invention;

[0010] FIG. 5A is an enlarged view of a rotator and a flow guide component in FIG. 2;

[0011] FIG. 5B is a three-dimensional diagram of a flow guide component in FIG. 1;

[0012] FIG. 5C is a partially three-dimensional diagram of a rotator body in FIG. 1, displaying a part of driving vanes;

[0013] FIG. 6 is a three-dimensional diagram of an induction stator in FIG. 1 ;

[0014] FIG. 7 is a schematic diagram of implementation of using a low-temperature thermal-gas electricity generation apparatus in a vent pipe according to some embodiments of the present invention;

[0015] FIG. 8 is a schematic diagram of implementation of using a low-temperature thermal-gas electricity generation apparatus in a heat-exchange system according to some embodiments of the present invention;DETAILED DESCRIPTION

[0016] In some embodiments, for example, FIG. 1 and FIG. 2, a low-temperature thermalgas electricity generation apparatus 100 includes an intake pressurization component 102, an intake fan 103, a rotator assembly 104, an induction disk 116, and an induction stator 106. The low-temperature thermal-gas electricity generation apparatus 100 can generate electricity by using a hot airflow. It should be noted that a temperature of the hot airflow entering into the low-temperature thermal-gas electricity generation apparatus 100 is greater than or equal to 50°C. Preferably, the temperature of the hot airflow is from 80°C to 250°C. In this case, the hot airflow may be industrial waste heat. By collecting industrial waste heat gases and introducing them into the low-temperature thermal-gas electricity generation apparatus 100 through the intake pressurization component 102, power generation can be achieved (as will be describedin detail later).

[0017] As shown in FIG. 2, the intake pressurization component 102 includes an airflow inlet 108 and an airflow outlet 110. A hot airflow (for example, an arrow in FIG. 2) may enter into the airflow inlet 108. In addition, in the intake pressurization component 102, the hot airflow may be output to the rotator assembly 104 through the airflow outlet 110 along an airinlet direction (for example, a direction from the airflow inlet 108 to the airflow outlet 110 in FIG. 2). In other words, the intake pressurization assembly 102 prevents the hot airflow from backflowing from the airflow outlet 110 to the airflow inlet 108, thereby avoiding the loss of hot airflow from the airflow inlet 108 to the outside of the intake pressurization assembly 102.

[0018] The intake fan 103 is located at the airflow inlet 108, to communicate with the airflow inlet 108. When being actuated, the intake fan 103 operates in the same intake direction as the intake pressurization component 102. The intake fan 103 increases the amount of intake airflow entering the intake pressurization assembly 102 and enhances the flow velocity of the hot airflow according to the rotational speed of the intake fan 103.

[0019] The induction stator 106 includes a plurality of induction modules 112. The induction module 112 can generate electricity energy through electromagnetic induction under an effect of a magnetic field.

[0020] The rotator assembly 104 includes a rotation shaft 114, a rotator 118, and a phasedifference generator 120. The rotation shaft 114 in FIG. 2 is concatenated to the induction disk 116 and the rotator 118. When being actuated, the rotation shaft 114 is configured to perfomi a first rotation. The first rotation refers to the rotational movement of the rotation shaft 114 driven by the phase-difference generator 120. The induction disk 116 is pivotally connected to the rotation shaft 114, and includes a plurality of magnetic elements 122 corresponding to the induction modules 112. The magnetic element 122 may be, for example, a permanent magnet or an electromagnet. The magnetic elements 122 can generate a magnetic field, so that the induction module 112 can induct the magnetic field of the magnetic element 122, and generate electricity through electromagnetic induction. The rotator 118 is located between the airflow outlet 110 and the induction stator 106. In response to an intake airflow (where the intake airflow may be the hot airflow), the rotator 118 is driven to perform second rotation. The firstrotation and the second rotation are movement along a same direction. The phase-difference generator 120 is disposed between the rotator 118 and the rotation shaft 114. When a preset phase angle difference is formed in a rotation process of the second rotation, the phasedifference generator 120 activates the rotation shaft 114 to perform the first rotation, to simultaneously drive the induction disk 116 and the intake fan 103 (where details are described below).

[0021] In some embodiments, the intake fan 103 is pivotally connected to the rotation shaft 114. When being actuated, the intake fan 103 can drive the rotation shaft 114 and the induction disk 116 to perform the first rotation, so that the rotator 118 can be driven by the rotation shaft 114 to perform the second rotation. If the rotational speed of the first rotation is lower or higher than the rotational speed of the second rotation, and a 90-degree phase angle difference occurs between the rotator 118 and the rotation shaft 114, the rotator 118 can transfer kinetic energy to the rotation shaft 114 through the phase-difference generator 120. This transfer of kinetic energy can supply part of the energy required for the operation of the intake fan 103 as it increases the intake volume of the hot airflow. In some embodiments, alternatively, the intake fan 103 may also operate independently of the rotation shaft 114. For example, the intake fan 103 may be pivotally connected to the rotation shaft 114 via a bearing (not shown in Figures 1 and 2), allowing the intake fan 103 to operate without interference from the rotating shaft 114.

[0022] In some embodiments, as shown in FIG. 2 and FIG. 3A, when the rotator 118 has not yet been driven by the hot airflow to activate the phase-difference generator 120, the rotation shaft 114 has not performed the first rotation. Further, as shown in FIG. 2 and FIG. 3B, when the hot airflow drives the rotator 118 to perform the second rotation, and a phase difference between the rotator 118 and the rotation shaft 114 (where the rotation shaft 114 does not rotate in this case) reaches the preset phase angle difference, the phase-difference generator 120 may activate the rotation shaft 114 to perform the first rotation. Because the induction disk 116 synchronously acts with the rotation shaft 114, the induction disk 116 synchronously rotates with the first rotation. This synchronization enables the magnetic elements 122 to interact with the induction modules 112 to generate electromagnetic induction, thereby producing electrical energy. Here, the synchronous rotation of the induction disk 116 with the rotation shaft 114means that after the rotation shaft 114 drives the induction disk 116, the induction disk 116 rotates around the rotating shaft 114 as its axis.

[0023] In some embodiments, the predetermined phase angle difference between the first rotation and the second rotation serves as the condition for the phase-difference generator 120 to drive the rotation shaft 114. The predetermined phase angle difference may be, for example, between 5 degrees and 45 degrees. For instance, when there is a 45 -degree phase angle difference between the rotor 118 and the rotation shaft 114, the phase-difference generator 120 drives the rotation shaft 114 to perform the first rotation through its inertial action. It should be noted that during the movement of the first rotation and the second rotation, the phasedifference generator 120 undergoes repeated deformation and restoration due to its inertial action. This process causes the first and second rotations to maintain a 45 -degree phase difference at a fixed frequency, allowing the phase-difference generator 120 to intermittently output kinetic energy to the rotation shaft 114 to sustain its continuous first rotation. It should be further noted that the rotation shaft 114, the rotator 118, and the phase-difference generator 120 may be operate based on a working principle of a Stirling engine (Stirling Engine). However, unlike a typical Stirling engine, the rotation shaft 114 and the rotator 118 only need to achieve a phase angle difference of 5 degrees to 45 degrees to achieve a similar effect. In this context, the second rotation is powered by kinetic energy converted from thermal energy (hot airflow). This kinetic energy is stored and released through the repeated deformation and restoration of the phase-difference generator 120. As a result, the first rotation and the second rotation are maintained as long as the supply of hot airflow continues.

[0024] In some embodiments, as shown in FIG.2, the rotator 118 further includes a rotator body 124. The phase-difference generator 120 is assembled between the rotator body 124 and the rotation shaft 114. The rotator body 124 activates the rotation shaft 114 by using the phasedifference generator 120, to perform the first rotation.

[0025] In some embodiments, as shown in FIG. 3 A and FIG. 3B, the rotator body 124 further includes a first axial hole 125 and a plurality of first fixing portions 126. The rotation shaft 114 passes through the first axial hole 125, the first fixing portions 126 are respectively configured around the first axial hole 125. The rotation shaft 114 includes a plurality of secondfixing portions 128. The phase-difference generator 120 includes a plurality of elastic members 130, and each elastic member 130 is respectively connected to a first fixing portion 126 and a second fixing portion 128 that are adjacent to the elastic member 130. In this way, when the rotator 118 twists the elastic members 130, the elastic members 130 are deformed. Then, the elastic members 130 respectively pull the rotation shaft 114 based on elasticity of the elastic members 130, to further enable the rotation shaft 114 to perform the first rotation. The elastic member 130 may be, for example, a torsion spring.

[0026] In some embodiments, taking the phase-difference generator 120 as an example of a spring, the spring can store kinetic energy applied to it when twisted. The spring supplies energy to the rotation shaft 114, thereby driving it. The phase-change between the rotation shaft 114 and the rotator 118 refers to the situation where, when the rotator 118 begins the second rotation, the rotational speed of the second rotation exceeds that of the first rotation (with the initial speed of the first rotation being zero). This allows the rotator 118 to store kinetic energy in the phase-difference generator 120. During the process in which the rotator 118 drives the rotation shaft 114 through the phase-difference generator 120, the energy supplied by the phasedifference generator 120 decreases, causing the phase-difference to gradually reduce. When the phase difference again reaches the preset phase difference, the phase-difference generator 120 once more supplies energy to the rotating shaft 114. Through this process, the phase between the rotation shaft 114 and the rotator 118 continuously changes as the phase-difference generator 120 alternates between supplying energy and storing energy.

[0027] In some embodiments, as shown in FIG. 2 and FIG. 4, the induction disk 116 further includes a disk body 132. The magnetic elements 122 are arranged in a circular pattern on the disk body 132 at 30-degree mechanical angle intervals. The circular arrangement of the magnetic elements 122 on the disk body 132 means that the magnetic elements 122 are distributed around the disk body 132 with the rotating shaft 114 as the center. In some embodiments, as shown in Figure 2, the disk body 132 may be connected to the induction disk 116 or may be separate from it. The disk body 132 is pivotally connected to the rotation shaft 114 and rotates in synchronization with the induction disk 116. In other words, when the induction disk 116 performs the first rotation, the rotation shaft 114 simultaneously drives thedisk body 132 to rotate, causing the magnetic elements 122 to revolve around the axis of the rotation shaft 114. The number of magnetic elements 122 may be 24, and these 24 magnetic elements 122 are arranged in a circular configuration on the disk body 132 at intervals of 15 degrees of mechanical angle. In some embodiments, adjacent magnetic elements 122 have alternating magnetic poles. For example, the magnetic element 122 located at 0 degrees has an S-pole at the first end and an N-pole at the second end; the magnetic element 122 located at 30 degrees has an N-pole at the first end and an S-pole at the second end; the magnetic element 122 located at 60 degrees has an S-pole at the first end and an N-pole at the second end, and so on. When the induction disk 116 rotates in synchronization with the rotation shaft 114, the induction module 112 inducts the alternating changes in the magnetic poles of the magnetic elements 122, thereby generating electromotive force (EMF).

[0028] In some embodiments, as shown in FIG. 2, the intake pressurization component 102 includes a plurality of one-way air flow valve components 134. Each one-way air flow valve component 134 includes a fluid inlet 136 and a fluid outlet 138. The fluid inlets 136 form the airflow inlet 108, and the fluid outlets 138 form the airflow outlet 110. The air-inlet direction may refer to a forward flowing direction in the one-way air flow valve component 134, allowing hot airflow to be output to the rotator assembly 104 through the one-way air flow valve component 134. It should be noted that the unidirectional flow function of the one-way air flow valve component 134 prevents the backflow of hot airflow to the fluid inlet 136. In some embodiments, the one-way air flow valve component 134 may be made of a material with a low thermal conductivity (for example, a ceramic fiber or aluminum oxide), or a coating with a low thermal conductivity is coated inside the one-way air flow valve component 134. This design allows the hot airflow to maintain its temperature as it passes through the one-way air flow valve component 134.The flow channel formed by the fluid inlets 136 and fluid outlets 138 of the one-way air flow valve component 134 within the intake pressurization component 102 may constitute a first compression zone Al. When the hot airflow enters the first compression zone Al, it can be compressed and heated.

[0029] In some embodiments, as shown in FIG. 2, the intake pressurization component 102 includes an air- inlet valve body 105. The interior of the air- inlet valve body 105 may beformed with the one-way air flow valve components 134, which are arranged to encircle the center of the air- inlet valve body 105. Each fluid inlet 136 is positioned at one end of the airinlet valve body 105, while each fluid outlet 138 is positioned at the opposite end of the airinlet valve body 105. It should be noted that the air-inlet valve body 105 may be manufactured using 3D printing technology, allowing the one-way air flow valve component 134 to be integrally formed within the interior of the air-inlet valve body 105. This design enhances structural integration and reduces manufacturing complexity.

[0030] In some embodiments, as shown in FIG. 2, FIG. 5A, and FIG. 5B, the rotator assembly 104 further includes an outer housing body 107 and a plurality of driving vanes 140. The outer housing body 107 is circumferentially disposed on an outer surface 127 of the rotator body 124. The driving vanes 140 are respectively disposed on the outer surface 127, and when the driving vanes 140 are actuated, the driving vanes 140 drive the rotator 118 to perform the second rotation. For example, the driving vanes 140 may be arranged in a circular pattern on the outer surface 127, with one end of each driving vanes 140 positioned adjacent to the airflow outlet 110 and the other end positioned near the induction disk 116. In addition, one end of the housing body 107 is in fluid communication with the airflow outlet 110 of the intake pressurization component 102, allowing the housing body 107 to receive hot airflow from the airflow outlet 110.

[0031] The aforementioned driving vanes 140 drive the rotator 118 to produce a second rotation. For example, when hot airflow is directed at a preset angle toward the driving vanes 140 (as will be described later), the hot airflow can exert thrust on each of the driving vanes 140, causing the vanes 140 to drive the rotator body 124 to perform the second rotation. The hot airflow can flow in the direction of the induction disk 116. Each driving vanes 140 may be oriented at an angle corresponding to the direction of the second rotation. This arrangement allows each driving vanes 140 to provide thrust in the same direction as the second rotation.

[0032] In some embodiments, as shown in FIG. 2, FIG. 5A, and FIG. 5B, the rotator assembly 104 further includes a flow guide component 142. The flow guide component 142 includes a flow guide cover 144 and an annular flow guiding port 146. The flow guide cover 144 includes a mounting hole 141, a bottom 143, and a top 145. The rotation shaft 114 passesthrough the mounting hole 141, the top portion 143 is adjacent to the airflow outlet 110, and the bottom portion 145 is adjacent to the rotator 118. The annular flow guiding port 146 is located at the bottom portion 145, communicates with the rotator 118, and is configured to actuate the driving vane 140. The annular flow guiding port 146 surrounds the bottom portion 145, so that the hot airflow can be guided by the annular flow guiding port 146 to align a wind direction to the driving vane 140, so as to push the driving vane 140.

[0033] In some embodiments, the top portion 143 and the outer housing body 107 have a first cross-sectional area, while the bottom portion 145 and the outer housing body 107 have a second cross-sectional area, wherein the first cross-sectional area is larger than the second cross-sectional area. This configuration forms a second compression zone (A2) between the flow guide cover 144 (top portion 143 and bottom portion 145) and the outer housing body 107. When the hot airflow enters the second compression zone A2, the narrowing of the flow path (from the top portion 143 to the bottom portion 145) causes the airflow to be compressed and heated within the second compression zone A2. The hot airflow is then ejected through the annular flow guiding port 146, where it is directed onto the driving vane 140 to drive their motion.

[0034] In some embodiments, the outer housing body 107 may be integrally formed, or may include a plurality of housing bodies. For example, the outer housing body 107 may be connected to one of the flow guide component 142 and the rotator body 124, so that the other of the flow guide component 142 and the rotator body 124 is accommodated in the outer housing body 107. For another example, the rotator body 124 and the flow guide component 142 may respectively include two connected outer housings.

[0035] In some embodiments, as shown in FIG. 5B, the flow guide cover 144 has a domeshaped structure with an end of the top portion 143 facing the intake pressurization component 102. In this configuration, the flow guide cover 144 directs the hot airflow toward the annular flow guiding port 146. In certain embodiments, as illustrated in FIG. 5 A, the annular flow guiding port 146 includes a plurality of guide vanes 148, which are annularly arranged around the annular flow guiding port 146. These guide vanes 148 form multiple flow channels, with the primary purpose of redirecting the airflow to push the rotator 118. When hot airflow isdischarged from the intake pressurization component 102 to the flow guide cover 144, the airflow is guided to the annular flow guiding port 146. Due to the dome-shaped structure of the air guiding cover 144, the hot airflow undergoes compression, which increases both its temperature and pressure.

[0036] In some embodiments, as illustrated in FIGS. 2, 5A, and 5C, the outer surface 127 is provided with an outer brim 129. The outer brim 129 and the outer housing body 107 together define an exhaust opening 131. Each driving vane 140 includes a wind bearing section 147 and a flow guide section 149. The wind bearing section 147 and the flow guide section 149 may be separate vanes or may be integrally formed as a single vane. The wind bearing section 147 is positioned near the airflow outlet 110, while the flow guide section 149 extends to the exhaust opening 131, thereby forming a nozzle region.

[0037] Specifically, the wind bearing section 147 is located adjacent to the annular flow guiding port 146. When hot airflow is ejected from the annular flow guiding port 146 toward the driving vanes 140, the hot airflow impacts the wind bearing section 147, thereby applying thrust to the wind bearing section 147 and directing the airflow toward the flow guide section 149. In addition, the flow guide section 149 extends toward the exhaust opening 131, and compresses space within the exhaust opening 131. This configuration allows the flow guide section 149 to guide and compress the hot airflow for discharge through the exhaust opening 131.

[0038] In some embodiments, the flow guide section 149 is provided with a convex surface 151 and a concave surface 153. As the hot airflow passes through the flow guide section 149, a first pressure is generated on the convex surface 151, while a second pressure, greater than the first pressure, is generated on the concave surface 153. This pressure differential drives the movement of the driving vanes 140 in the rotational direction of the second rotation, thereby causing the rotator 118 to rotate accordingly. In certain embodiments, the flow guide section 149 also includes a flow guide surface 155, which guides the hot airflow out through the exhaust opening 131. As the hot airflow moves along the flow guide surface 155, a propulsive force is generated on the flow guide surface 155. This force propels the driving vanes 140, thereby imparting kinetic energy for the second rotation. The exhaust opening 131 may be configuredas a nozzle for compressible gas.

[0039] In some embodiments, as show in Fig. 5A. The wind bearing section 147 and the flow guide section 149 are depicted as separate vane. The rotator assembly 104 further includes multiple sub-guide vanes 148’, which are annularly arranged between the wind bearing section and the flow guide section 149. Each sub-guide vanes 148’ is configured to direct the hot airflow to impinge on and drive the guide section 149, thereby enhancing operational efficiency.

[0040] In some embodiments, as show in Fig. 2. The rotator assembly 104 further includes an expansion zone A2 ’ . Specifically, the area within the flow guide component 142 constitutes the flow guide pressurization zone A8 (first compression). The area extending from the subguide vanes 148’ (as Fig. 5A) to the exhaust opening 131 constitutes another second compression zone A2 (second compression). The expansion zone A2’ is located between the flow guide pressurization zone A8 and the second compression zones A2. The flow guide pressurization zone A8 is configured to compress the intake airflow and guide the intake airflow to deflect toward the wind bearing section 147 of the driving vanes 140.

[0041] In some embodiments, the expansion zone A2’ is adapted for power conversion, and the sub-guide vanes 148’ are adapted to guide the intake airflow to deflect toward the flow guide section 149. The second compression zone A2 is configured to compress the intake airflow and accelerate the discharge of the intake airflow. For example, After the hot gas flow undergoes first compression, the high-temperature air enters the expansion zone A2’ from the flow guide assembly 142. The temperature of the hot gas flow decreases (since airflow temperature is inversely proportional to volume), causing the temperature difference to convert into mechanical work that drives the phase-difference generator 120 and rotates the rotation shaft 114, performing the first power conversion to drive the vanes 140. In some embodiments, the outer surface 127 is curved to form a second compression zone A2 and the expansion zone A2’ between the outer housing body 107. For example, the expansion zone A2’ is a gradually expanding bell-shaped structure, while the second compression zone A2 is a gradually narrowing bell-shaped structure. This causes the hot gas flow to compress or expand depending on the changes in the flow passage space.

[0042] In some embodiments, as shown in FIG. 2 and FIG. 6, the induction stator 106includes a stator disk body 150. The stator disk body 150 is located between the induction disk 116 and the rotator 118. The stator disk body 150 includes a center shaft hole 152 and a plurality of assembly slots 154. The assembly slots 154 surround the center shaft hole 152, and the induction modules 112 are respectively disposed in the assembly slots 154.

[0043] In some embodiments, the assembly slots 154 respectively include fixed openings 156. The induction modules 112 include a plurality of iron cores 158 and annular windings 160. The iron cores 158 are respectively embedded in the assembly slots 154. The iron core 158 may be shaped as a C-shaped iron core, so that the iron cores 158 respectively include concave portions 162. The concave portions 162 respectively correspond to the fixed openings 156, so that the annular windings 160 are disposed at the fixed openings 156 and the concave portions 162. It should be noted that the annular windings 160 do not wrap the iron cores 158 one by one. Therefore, the annular windings 160 may be manufactured in advance, and then the annular windings 160 are fixed to the assembly slots 154. In this way, a manufacturing procedure is simplified, and manufacturing time is shortened.

[0044] In some embodiments, there is a spacing distance between two assembly slots 154, so that when surrounding the center shaft hole 152, all the assembly slots 154 maintain the same spacing distance, to avoid a case in which, when the induction disk 116 rotates, and when the iron core 158 and the magnetic element 122 attract or repel each other, the induction module 112 moves due to interference of a magnetic force, deformation is caused due to an imbalance weight of the induction module 112 on the stator disk body 150, or magnetic fields of the induction modules 112 interfere each other. In some embodiments, a quantity of iron cores 158 is 12. The 12 iron cores 158 simultaneously sense N poles or S poles of the magnetic elements 122. Due to a location arrangement of the iron cores 158, the 12 iron cores 158 may perform electromagnetic induction in a same magnetic field direction at a same moment.

[0045] In some embodiments, as shown in FIG. 1 and FIG. 2, the intake fan 103 further includes a fan housing body 109 and a fan blade 111. The fan blade Ill is located inside the fan housing body 109. The intake fan 103 includes a wind-shield curved surface 113 toward a direction away from the intake pressurization component 102. When the intake fan 103 is actuated, the hot airflow may be sucked into the intake pressurization component 102 by thefan blade 111 along the wind-shield curved surface 113. A third compression zone A3 is formed between the wind-shield curved surface 113 and the fan housing body 109. Because a flow channel of the third compression zone A3 shrinks along the air-inlet direction, before the hot airflow is sucked into the intake pressurization component 102 by the intake fan 103, the hot airflow is accumulated in the third compression zone A3, and is compressed and heated.

[0046] During the initial operation, auxiliary power is required to drive the entire power generation device. In some embodiments, external power may be supplied to the induction stator 106 to start the rotation of the induction disk 116 (disk body 132), thus forming an electric motor configuration. When the rotational speed of the induction disk 116 and rotor 118 stabilizes, the external power is disk discontinued, and the induction stator 106 and induction disk 116 (disk body 132) return to a generator configuration.

[0047] In actual data of an embodiment, a temperature of the hot airflow is 60°C before the hot airflow enters the intake pressurization component 102. Then, the hot airflow sequentially enters the first compression zone Al, the second compression zone A2, and the third compression zone A3, to be compressed and heated for three times, and the temperature of the hot airflow reaches approximately 85°C. Finally, when the hot airflow is output by the exhaust opening 131, the temperature of the hot airflow is approximately 28°C. In the foregoing experimental process, a temperature difference of the hot airflow reaches 32°C. The temperature difference can be converted into kinetic energy for the rotation shaft 114, the induction disk 116, and the rotator 118 to rotate. In this way, the low-temperature thermal-gas electricity generation apparatus 100 can be run when the temperature of the hot airflow entering the low-temperature thermal-gas electricity generation apparatus 100 is greater than only 50°C, and is applicable to industrial waste heat or natural hot airflow.

[0048] The energy efficiency measured in this experiment is as follows: The rotational speed of the induction disk 116 can be 250 rpm or 300 rpm. For example, with 12 pole pairs, 250 rpm is suitable for generating 50Hz power in line with the standard grid, while 300 rpm is suitable for generating 60Hz power. Thus, the waste heat from factories can drive the induction disk 116 to reach speeds between 250 rpm and 300 rpm, generating grid-compatible electricity. The generation efficiency is between 92% and 95%, with energy loss around 10%. The thermalefficiency is 53% (calculated as (60°C intake temperature - 28°C exhaust temperature) / 60°C intake temperature). The overall energy efficiency is 43.8% (53% thermal efficiency x 92% generation efficiency x 90% other energy losses). Therefore, the low-temperature thermal-gas electricity generation apparatus 100 converts thermal energy into electrical energy with an efficiency of 43.8%, which can be output for use in the factory.

[0049] As shown in FIG. 2 and FIG. 7, in some embodiments, the low-temperature thermal-gas electricity generation apparatus 100 may be disposed in a vent pipe 200. The vent pipe 200 may be connected to an exhaust device (which is not shown in the figure) for emitting industrial waste hot airflow, so that the vent pipe 200 can provide the hot airflow (the waste hot airflow) for the low-temperature thermal-gas electricity generation apparatus 100. In this way, when the low-temperature thermal-gas electricity generation apparatus 100 activates running, the hot airflow is drawn through the vent pipe 200, to generate electricity. The low-temperature thermal-gas electricity generation apparatus 100 and the vent pipe 200 work in an open environment, and the hot airflow may be output to the environment through the exhaust opening 131. The vent pipe 200 can constantly provide the hot airflow for the low-temperature thermalgas electricity generation apparatus 100, to maintain the low-temperature thermal-gas electricity generation apparatus 100 to generate electricity.

[0050] As shown in FIG. 2 and FIG. 8, in some embodiments, as shown in FIG. 8, the low-temperature thermal-gas electricity generation apparatus 100 may be disposed in a heatexchange system 300. The heat-exchange system 300 includes a housing body 302, a heatexchange tube assembly 304, and a plurality of baffles 306. The housing body 302 seals the low-temperature thermal-gas electricity generation apparatus 100 and the heat source region A4, so that sealed space is formed between an interior of the housing body 302 and the heat source region A4. The heat-exchange tube assembly 304 is disposed in the heat source region A4, and is configured to circularly deliver the hot airflow from the heat source region A4 to the housing body 302 for heat exchange. The baffle 306 is disposed inside the housing body 302, to form a first sealing region A5 and a second sealing region A6 through separation. The baffle 306 separates the housing body 302 from the fan housing body 109 to form the first sealing region A5. The baffle 306 forms the second sealing region A6 among the housing body 302, theouter housing body 107, and the fan housing body 109.

[0051] In an electricity generation stage, after the hot airflow is delivered from the heat source region A4 to the first sealing region A5 through the heat-exchange tube assembly 304, the hot airflow obtaining thermal energy of the heat source region A4 may enter the low-temperature thermal -gas electricity generation apparatus 100 through the first sealing region A5 and the intake fan 103, so that the induction disk 116 performs the first rotation, and the rotator 118 performs the second rotation. Then, after the hot airflow is output through the exhaust opening 131, the hot airflow may enter the heat-exchange tube assembly 304 again through the second sealing region A6. When the hot airflow is output through the exhaust opening 131, a part of thermal energy of the hot airflow is reduced for the rotation shaft 114 and the rotator 118 to work.

[0052] After the hot airflow returns to the heat source region A4 through the heatexchange tube assembly 304, heat exchange may be performed on the hot airflow through the heat-exchange tube assembly 304 in the heat source region A4, so that the hot airflow absorbs the thermal energy of the heat source region A4. The heated hot airflow enters the first sealing region A5 again, and this process is accordingly repeated. It should be noted that, when the hot airflow is output through the exhaust opening 131, the hot airflow has a first temperature, and the hot airflow has a second temperature when heat exchange is completed. The first temperature is lower than the second temperature. In this way, a hot air region is formed in the first sealing region A5, and a cold air region is formed in the second sealing region A6. The hot airflow has a temperature difference between the first sealing region A5 and the second sealing region A6, and the temperature difference enables the hot airflow to be converted into kinetic energy in the rotator assembly 104.

[0053] In some embodiments, the baffle 306 separates the housing body 302 from the stator disk body 150, to form a third sealing region A7. The third sealing region A7 does not communicate with the second sealing region A6, so that the hot airflow output through the exhaust opening 131 does not enter the second sealing region A6, to prevent the annular winding 160 and the magnetic element 122 from affecting electromagnetic induction due to an increase in the temperature (where insulation of the annular winding 160 may fail and a magnetic forceof the magnetic elements 122 may deteriorate when the temperature is increased).

[0054] A case that the thermal energy is stored in liquid is described in the foregoing embodiments. In another embodiment, the low-temperature thermal-gas electricity generation apparatus 100 may alternatively be directly applicable to an air flow carrying thermal energy. For example, the low-temperature thermal-gas electricity generation apparatus 100 is directly configured in a vent pipe of industrial waste gas, a chimney of an incinerator, or another outlet for waste gas with a specific temperature. The low-temperature thermal-gas electricity generation apparatus 100 may be directly driven by the air flow with a high temperature, to further generate electricity.

[0055] In some embodiments, as shown in FIG. 1 and FIG. 2, the intake pressurization component 102, the rotator assembly 104, and the induction stator 106 may be covered by an integrally formed outer housing, to prevent the hot airflow from dissipating outside the low-temperature thermal -gas electricity generation apparatus 100. In some embodiments, as shown in FIG. 1, the low-temperature thermal -gas electricity generation apparatus 100 further includes at least one fixing connecting rod 164. Each fixing connecting rod 164 can connect the intake pressurization component 102, the rotator assembly 104, and the induction stator 106, so that structures of the intake pressurization component 102, the rotator assembly 104, and the induction stator 106 can maintain stable by using the rotation shaft 114 as an axis during the first rotation or the second rotation. Specifically, the fixing connecting rod 164 can connect the air-inlet valve body 105, the outer housing body 107, and the fan housing body 109, and the air-inlet valve body 105, the outer housing body 107, and the fan housing body 109 connect each other to be sealed from the outside, to strongly prevent the hot airflow from leaking out. Any apparatus that can ensure that the hot airflow can be stored inside the low-temperature thermal-gas electricity generation apparatus 100 when the hot airflow is delivered in the low-temperature thermal-gas electricity generation apparatus 100 can be implemented.

[0056] In some embodiments, as shown in FIG. 2, the low-temperature thermal-gas electricity generation apparatus 100 further includes an electricity generation module 166. The electricity generation module 166 includes the foregoing described induction stator 106 and induction disk 116. The electricity generation module 166 is electrically connected to a load(which is not shown in the figure). The electricity generation module 166 may be a device independent of the intake pressurization component 102, the intake fan 103, the rotation shaft 114, and the rotator 118. After the induction disk 116 is driven by the rotation shaft 114 and has electromagnetic induction with the induction stator 106 to generate electricity, the generated electricity may be output by the electricity generation module 166 to the load for use. The electricity generation module 166 may include a transformer and a rectifier, to adjust an electrical characteristic of the output electricity. The load may be an electricity storage device (for example, a battery energy storage system), so that the electricity storage device can store electricity and selectively supply the electricity based on an electricity supply requirement, to build a power supply network of renewable energy or green energy of industrial waste heat.

[0057] In summary, in some embodiments, a low-temperature thermal-gas electricity generation apparatus 100 is provided, which includes an intake pressurization component 102, an intake fan 103, a rotator assembly 104, an induction disk 116, and an induction stator 106. The intake pressurization component 102 inputs hot gas (industrial waste heat), which drives the induction disk 116 and rotator 118. This allows the multiple magnetic elements 122 of the induction disk 116 to form electromagnetic induction with the multiple induction modules 112 of the induction stator 106 to generate electrical energy. The coordination of the rotation shaft 114, rotator 118, and phase-difference generator 120 ensures that the kinetic energy of the shaft 114 and induction disk 116 is continuously provided, enhancing the power generation efficiency of the low-temperature thermal-gas electricity generation apparatus 100 by minimizing energy loss during the first rotation. Additionally, the intake pressurization component 102 includes multiple one-way airflow valve components, such as intake pressurization component 134, which function to ensure that the hot gas flows unidirectionally to the rotator 118, reducing the loss of hot gas.

[0058] Although the present invention has been described in considerable detail with reference to certain preferred embodiments thereof, the disclosure is not for limiting the scope of the invention. Persons having ordinary skill in the art may make various modifications and changes without departing from the scope and spirit of the invention. Therefore, the scope of the appended claims should not be limited to the description of the preferred embodimentsdescribed above.

Claims

CLAIMSWhat is claimed is:

1. A low-temperature thermal-gas electricity generation apparatus, comprising:an intake pressurization component, comprising an airflow inlet and an airflow outlet; an intake fan, located at the airflow inlet;an induction stator, comprising a plurality of induction modules;a rotator assembly, comprising:a rotation shaft, wherein one end of the rotation shaft is connected to the intake fan; a rotator, located between the airflow outlet and the induction stator; anda phase-difference generator, connected between the rotator and the rotation shaft; and an induction disk, connected to the other end of the rotation shaft, and comprising a plurality of magnetic elements corresponding to the induction modules, whereinin response to that an intake airflow drives the rotator to generate a second rotation, and a preset phase angle difference is formed in a rotation process of the second rotation, the phasedifference generator activates the rotation shaft to perform first rotation, thereby simultaneously drive the induction disk and the intake fan.

2. The low-temperature thermal-gas electricity generation apparatus according to claim 1, wherein the rotator comprises a rotator body, the phase-difference generator is assembled on the rotator body and the rotation shaft, and the rotator body activates the rotation shaft through the phase-difference generator, to perform the first rotation.

3. The low-temperature thermal -gas electricity generation apparatus according to claim 2, wherein the rotator body further comprises a first axial hole, a first fixing portion, and a second fixing portion, the first fixing portion and the second fixing portion are configured on opposite sides of the rotator body, and the rotation shaft passes through the first axial hole, wherein the phase-difference generator is an elastic member, two ends of the elastic member are respectively connected to the first fixing portion and the second fixing portion, and therotation shaft is connected to a middle section of the elastic member.

4. The low-temperature thermal-gas electricity generation apparatus according to claim 2, wherein the rotator body further comprises a first axial hole and a plurality of first fixing portions, the rotation shaft passes through the first axial hole, the first fixing portions are respectively configured around the first axial hole, and the rotation shaft comprises a plurality of second fixing portions, wherein the phase-difference generator comprises a plurality of elastic members, and each elastic member is respectively connected to one of the first fixing portions and one of the second fixing portion.

5. The low-temperature thermal -gas electricity generation apparatus according to claim 2, wherein the rotator assembly further comprises an outer housing body and a plurality of driving vanes, the outer housing body surrounds an outer surface of the rotator body, the driving vanes are respectively disposed on the outer surface, and when the driving vanes are actuated, the driving vanes drive the rotator to perform the second rotation.

6. The low-temperature thermal-gas electricity generation apparatus according to claim 5, wherein the rotator assembly further comprises:a flow guide pressurization zone, connected to the outer housing body;an expansion zone; anda second compression zone;wherein each driving vane includes a wind bearing section and a flow guide section, the expansion zone includes the wind bearing section, and the second compression zone includes a plurality of sub-guide vanes and the flow guide section, the sub-guide vanes are connected to the outer casing;the flow guide pressurization zone is configured to compress the intake airflow and guide the intake airflow to deflect toward the wind bearing section of the driving vanes; the expansion zone is adapted for power conversion, and the sub-guide vanes are adapted to guide the intake airflow to deflect toward the flow guide section; the second compression zone is configured to compress the intake airflow and accelerate the discharge of the intake airflow.

7. The low-temperature thermal-gas electricity generation apparatus according to claim 5, wherein the outer surface comprises an outer brim, an exhaust opening is formed between the outer brim and the outer housing body, each driving vane comprises a wind bearing section and a flow guide section, the wind bearing section is adjacent to the airflow outlet, and the flow guide section extends to the exhaust opening.

8. The low-temperature thermal-gas electricity generation apparatus according to claim 1, wherein the intake pressurization component comprises a plurality of one-way air flow valve components, each one-way air flow valve component comprises a fluid inlet and a fluid outlet, the fluid inlets form the airflow inlet, and the fluid outlets form the airflow outlet.

9. The low-temperature thermal-gas electricity generation apparatus according to claim 1, wherein the induction stator comprises a stator disk body, the stator disk body is located between the induction disk and the rotator, the stator disk body comprises a center shaft hole and a plurality of assembly slots, the assembly slots surround the center shaft hole, and the induction modules are respectively disposed in the assembly slots.

10. A low-temperature thermal-gas electricity generation apparatus, comprising:an intake fan;an intake pressurization component, comprising an airflow inlet and an airflow outlet, wherein the airflow inlet is adjacently connected to the intake fan;a rotator, located at the airflow outlet;a rotation shaft, wherein one end of the rotation shaft is connected to the intake fan; a phase-difference generator, connected between the rotator and the rotation shaft; and an electricity generation module, comprising an induction stator and an induction disk, wherein the induction stator comprises a plurality of induction modules, and the induction disk is connected to the other end of the rotation shaft, and comprises a plurality of magnetic elements corresponding to the induction modules, whereinin response to that an intake airflow drives the rotator to perform second rotation, and a phase angle difference ranging from 5 degrees to 45 degrees is formed in a rotation process ofthe second rotation, the phase-difference generator activates the rotation shaft to perform first rotation, thereby simultaneously drive the induction disk and the intake fan.

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