CN106351788B - A kind of windmill torsional mode energy capture device using annular space jet excitation - Google Patents

Abstract

The invention discloses a windmill torsion type energy capture device excited by an annular jet flow to solve technical problems such as low energy capture efficiency existing in micro energy capture devices used to capture gas pressure energy in the current industrial environment. The invention includes a micropore flow regulator, a torsion generating device and a locking screw. The micropore flow regulator is threadedly connected with the torsion power generation device through locking screws. The micropore flow regulator can induce the outside air to move directionally under the action of high-pressure and small-flow gas, and increase the speed and flow of the induced gas, discharge it from the air outlet and act on the micropore flow regulator. Connected twisting generators for energy capture. The windmill torsion energy capture device designed in the present invention can amplify the gas flow and velocity, and further increase the capture efficiency by more than 3 times. It has broad application prospects in the field of energy supply technology for low-power electronic devices such as Internet of Things nodes.

Description

A Windmill Torsional Energy Harvesting Device Excited by Annulus Jet

technical field

The invention relates to a windmill torsion energy capture device excited by an annular gap jet, and belongs to the technical field of energy supply for low-power electronic equipment.

Background technique

As advanced manufacturing equipment technology continues to move towards intelligence, light weight, miniaturization and integration, and with its deep integration with low-power electronic equipment energy supply technology, a large number of IoT nodes, low power consumption Low-power electronic devices such as sensors and low-power devices are widely used in the field of advanced manufacturing equipment technology. At the same time, this also puts forward higher requirements on the energy supply technology level of low-power electronic equipment. Therefore, stable and reliable continuous energy supply to low-power electronic devices such as low-power devices and IoT nodes is a prerequisite for ensuring their normal operation. The current energy supply methods for IoT nodes and low-power devices in the field of advanced manufacturing equipment technology mainly include direct power supply and chemical battery energy supply. Among them, the direct power supply method has problems such as serious electromagnetic interference and complex system wiring, while the chemical battery power supply method has shortcomings such as limited battery life, regular replacement, and environmental pollution. It can be seen that it is particularly important to study a new energy capture technology to solve many problems caused by traditional energy supply technologies.

Self-energy technology based on piezoelectric elements has become one of the hot research issues in the current environmental micro-energy capture and conversion technology due to its simple structure, no heat generation, no electromagnetic interference, and long life. It can convert the clean and renewable micro-energy (such as gas pressure energy) that exists in large quantities in the industrial environment into the required electric energy and provide continuous and reliable power supply for low-power electronic devices. This technology research can effectively solve the problems caused by traditional power supply. Problems such as complicated wiring and chemical battery power supply need to be replaced regularly and pollute the environment. However, most energy harvesting devices in the current industrial environment cannot directly convert gas pressure energy into electrical energy, or the energy conversion efficiency is low, which restricts the use of such devices in low-power electronic devices such as IoT nodes, low-power sensors, and low-power devices. Applications in the field of equipment energy supply technology.

Contents of the invention

In order to solve the technical problems of low energy capture efficiency in micro-energy capture devices used to capture gas pressure energy in the current industrial environment, the present invention discloses a windmill torsion energy capture device that uses annulus jet excitation, which can be used for low power consumption The device provides an energy supply.

The technical scheme adopted in the present invention is:

The windmill torsional energy capture device excited by an annular jet includes a micropore flow regulator, a torsional power generation device and a locking screw, and the micropore flow regulator is threadedly connected to the torsional power generation device through the locking screw; The pore flow regulator includes an air inlet, an air inlet screw, an air inlet sealing ring, a fixed sleeve, an air outlet sealing ring, an air outlet, and an air outlet screw; The outlet screw is threadedly connected to the fixed sleeve; the gas inlet is gas-sealed with the fixed sleeve through the gas inlet sealing ring, and the gas outlet is gas-sealed with the fixed sleeve through the gas outlet sealing ring; the twisting power generation device includes a fan, a piezoelectric power generation component 1. A generator mounting frame and a fixing pin, the fan is screwed to the piezoelectric power generation assembly, and the piezoelectric power generation assembly is fixed to the generator mounting frame.

The air inlet is provided with a suction hole, the air inlet is provided with an air inlet threaded hole, the air inlet screw is threadedly connected with the air inlet threaded hole, the air inlet is provided with an air inlet sealing ring groove, and the air inlet is provided with an air inlet communicating hole . The fixed sleeve is provided with a sleeve threaded hole a, the sleeve threaded hole a is threadedly connected with the air inlet screw, the fixed sleeve is provided with an air inlet, the fixed sleeve is provided with a sleeve threaded hole b, and the air outlet screw is connected with the sleeve Barrel threaded hole b threaded connection. The air outlet is provided with an air outlet connecting hole, an air outlet sealing ring groove, and an air outlet threaded hole. The air outlet threaded hole is threadedly connected with the air outlet screw. The hole is threadedly connected with the locking screw, and the air outlet is provided with a tapered air jet outlet.

The fan is provided with a fan external thread, the fan is provided with a fixing pin installation hole a, the fixing pin installation hole a is connected to the fixing pin, the piezoelectric power generation assembly is provided with an elastic substrate and a piezoelectric element, and the piezoelectric element and the elastic substrate are adhesively connected , the piezoelectric power generation component is provided with a fixing pin mounting hole b, the fixing pin mounting hole b is connected with the fixing pin, the piezoelectric power generation component is provided with an internal thread of the piezoelectric power generation component, and the internal thread of the piezoelectric power generation component is threadedly connected with the fan external thread; The power generation component is provided with an elastic base plate, and the elastic base plate is provided with a straight beam a, an L-shaped beam and a straight beam b, and the elastic base plate is provided with a fixed bump, which is connected with the installation hole of the power generation component, and the elastic base plate is provided with an arc hinge I , Arc hinge Ⅱ and arc hinge Ⅲ. The generator mounting frame is provided with a generator inlet end, the generator mounting frame is provided with a mounting frame threaded hole, and the locking screw is threadedly connected with the mounting frame threaded hole, and the generator mounting frame is provided with a power generation component mounting hole and an exhaust hole .

The overlapping length between the airflow inlet and the airflow outlet structure is b, and the value range of b is 5-15 mm; the diameter of the airflow inlet communication hole is d1, and the _{ratio of} b to d1 is G ₌ b/d1 , the value range of G is 0.1~0.5; the diameter of the air outlet communication hole is d ₂ , the ratio of d ₁ to d ₂ is Z=d ₁ /d ₂ , and the value range of Z is 0.6~0.8; the conical jet The diameter of the outlet is d ₃ , the diameter ratio of the conical jet outlet and the connecting hole of the air outlet is C=d ₃ /d ₂ , and the value of C satisfies the range of 1~1.5.

The fan external thread length in the fan is H, and the value range of H is 10~15; the relative deflection angle between the straight beam a and the L-shaped beam in the elastic substrate is θ, and the value range of θ is 10~15. 20°; the fillet radius of the arc hinge I is R ₁ , and the value range of R ₁ is 1~3 mm; the fillet radius of the arc hinge II is R ₂ , and the value of R ₂ and R ₁ Ratio M=R ₂ /R ₁ , the value range of M is 0.2~1; the fillet radius value R ₃ of the arc hinge III, the ratio of R ₃ to R ₁ is N=R ₃ /R ₁ , N The value range of is 0.2~1.

The piezoelectric element in the piezoelectric power generation assembly can be selected from a piezoelectric ceramic sheet PZT or a flexible, tough piezoelectric element PVDF.

The working principle of the energy harvesting device is to use the positive piezoelectric effect of the piezoelectric element to convert the pressure energy of the gas into electrical energy. The energy capture device can induce the directional flow of external air under the action of high-pressure and low-flow gas, and can accelerate the induced external air. After the gas is accelerated, it will flow out from the air outlet and act on the micropore flow regulator The connected torsion generator converts electrical energy. The micro-pore flow regulator has a ring of micro-pores, and because the diameter of the pores is extremely small, the airflow ejected under the action of high-pressure gas is very fast. Due to the rapid gas flow, the internal pressure of the energy capture device is lower than the external ambient air pressure, so the external air will be evenly sucked into the micropore flow regulator to achieve the purpose of increasing the flow. The technical feature of the torsional generator is that it adopts a disk-shaped array structure, which can arrange as many piezoelectric elements as possible in a small space, and the twisting of each beam can cause the piezoelectric elements to deform, and capture the gas more efficiently. pressure energy. The designed hinge structure can reduce the torsional stiffness of the generator and increase the deformation of the piezoelectric element to maximize the power generation.

The beneficial effects of the present invention are: without affecting the working conditions of industrial production, the invented micropore flow regulator can induce the directional movement of the outside air under the action of high-pressure and small-flow gas, and increase the speed of the induced gas And increase the flow, discharge from the air outlet to act on the twisting power generation device connected with the micropore flow regulator for energy conversion. The power generation device designed by the invention amplifies the gas flow velocity and flow rate, thereby increasing the power generation efficiency by more than three times. It has broad application prospects in technical fields such as low-power sensors and low-power device energy supply.

Description of drawings

Fig. 1 shows a structural schematic diagram of a windmill torsion energy capture device that adopts annulus jet excitation proposed by the present invention;

Fig. 2 is a schematic structural diagram of a micropore flow regulator of a windmill torsion energy capture device proposed by the present invention;

Fig. 3 is a cross-sectional view of the airflow inlet structure of a windmill torsion energy capture device that adopts annulus jet excitation proposed by the present invention;

Fig. 4 is a cross-sectional view of the fixed sleeve structure of a windmill torsion energy capture device that adopts annulus jet excitation proposed by the present invention;

Fig. 5 is a cross-sectional view of the serial connection structure of the airflow inlet and the airflow outlet of a windmill torsion type energy capture device using annulus jet excitation proposed by the present invention;

Fig. 6 is a cross-sectional view of the airflow outlet structure of a windmill torsion energy capture device that adopts annulus jet excitation proposed by the present invention;

Fig. 7 is a cross-sectional view showing the structure of a torsional power generation device of a windmill torsional energy capture device excited by annulus jet flow proposed by the present invention;

Fig. 8 is a cross-sectional view of the fan structure of a windmill torsion energy capture device that adopts annulus jet excitation proposed by the present invention;

Fig. 9 is a front view of the structure of a piezoelectric power generation assembly of a windmill torsion energy capture device excited by annulus jets proposed by the present invention;

Fig. 10 is a left view of the structure of the piezoelectric power generation assembly of a windmill torsion energy capture device that adopts annulus jet excitation proposed by the present invention;

Fig. 11 is an enlarged view of the partial structure of the elastic substrate of a windmill torsion energy harvesting device proposed by the present invention that uses annulus jet excitation;

Fig. 12 is a cross-sectional view of the structure of the generator mounting frame of a windmill torsion energy capture device that adopts annulus jet excitation proposed by the present invention;

Fig. 13 is a schematic diagram of a rectification circuit of a windmill torsion energy harvesting device using annulus jet excitation proposed by the present invention.

Detailed ways

Specific implementation manner 1: This implementation manner will be described with reference to FIG. 1 to FIG. 13 . This embodiment provides a specific implementation of a windmill torsion energy capture device that uses annulus jet excitation. The torsional piezoelectric generator using annular jet excitation includes a micropore flow regulator 1 , a torsional power generation device 2 and a locking screw 3 . Wherein, the micropore flow regulator 1 is threadedly connected with the twisting power generating device 2 through a locking screw 3 .

The micropore flow regulator 1 is a flow amplifying device of a windmill torsion energy capture device excited by annular jet flow. The micropore flow regulator 1 includes an air inlet 1-1, an air inlet screw 1-2, an air inlet sealing ring 1-3, a fixed sleeve 1-4, an air outlet sealing ring 1-5, and an air outlet 1-6 and air outlet screws 1-7. The airflow inlet 1-1 is threadedly connected to the fixed sleeve 1-4 through the airflow inlet screw 1-2; the airflow outlet 1-6 is threadedly connected to the fixed sleeve 1-4 through the airflow outlet screw 1-7; The airflow inlet 1-1 and the fixed sleeve 1-4 are air-tightly sealed by the airflow inlet sealing ring 1-3; the airflow outlet 1-6 and the fixed sleeve 1-4 are air-tightly sealed by the airflow outlet sealing ring 1-5. The air inlet 1-1 is provided with a suction hole 1-1-1 to induce external air to enter the air inlet 1-1 from the air inlet 1-1-1; the air inlet 1-1 is provided with a threaded hole for the air inlet 1-1-2, the airflow inlet screw 1-2 is threadedly connected with the airflow inlet threaded hole 1-1-2; the airflow inlet 1-1 is provided with an airflow inlet sealing ring groove 1-1-3, and the airflow inlet sealing ring 1-3 is installed and fixed in the air inlet sealing ring groove 1-1-3; the air inlet 1-1 is provided with an air inlet communication hole 1-1-4, and the gas is induced to pass through the air inlet communication hole 1-1-4 Exhaust gas flow inlet 1-1. The fixed sleeve 1-4 is provided with a sleeve threaded hole a1-4-1, and the airflow inlet screw 1-2 is threadedly connected with the sleeve threaded hole a1-4-1; the fixed sleeve 1-4 is provided with an inlet The air hole 1-4-2, the compressed gas enters the fixed sleeve 1-4 through the air inlet 1-4-2; the fixed sleeve 1-4 is provided with a sleeve threaded hole b1-4-3, and the air outlet screw 1-7 is threadedly connected with sleeve threaded hole b1-4-3. The air outlet 1-6 is provided with an air outlet communication hole 1-6-1, and the mixed gas enters the air outlet 1-6 through the air outlet communication hole 1-6-1; the air outlet 1-6 is provided with an air outlet seal ring groove 1-6-2, the air outlet sealing ring 1-5 is installed in the air outlet sealing ring groove 1-6-2; the air outlet 1-6 is provided with an air outlet threaded hole 1-6-3, The air outlet screw 1-7 is threadedly connected with the air outlet threaded hole 1-6-3; the air outlet 1-6 is provided with a flow increasing device threaded connection hole 1-6-4, and the locking screw 3 is threaded with the flow increasing device The hole 1-6-4 is threaded; the gas outlet 1-6 is provided with a conical jet outlet 1-6-5, and the mixed gas is sprayed out of the micropore flow regulator 1 through the conical jet outlet 1-6-5.

The torsional power generation device 2 is an energy capture device using a windmill torsion energy capture device excited by an annular jet. The torsional power generation device 2 includes a fan 2-1, a piezoelectric power generation assembly 2-2, a generator installation frame 2-3 and a fixing pin 2-4. The fan 2-1 is provided with a fan external thread 2-1-1, and the fan 2-1 is threadedly connected with the internal thread 2-2-4 of the piezoelectric power generation component through the fan external thread 2-1-1; the fan 2- 1 is provided with a fixing pin installation hole a 2-1-2, and the fixing pin 2-4 is connected with the fixing pin installation hole a 2-1-2. The piezoelectric generating assembly 2-2 is provided with an elastic substrate 2-2-1, the piezoelectric generating assembly 2-2 is provided with a piezoelectric element 2-2-2, and the piezoelectric element 2-2-2 and The elastic substrate 2-2-1 is bonded with epoxy resin AB glue, and the piezoelectric element 2-2-2 can convert gas pressure energy into electrical energy, and manage the electrical energy through the rectification circuit of the capture device; The electric element 2-2-2 can adopt the piezoelectric ceramic sheet PZT of Harbin Core Tomorrow Company and Baoding Hongsheng Acoustics Manufacturer; ) Co., Ltd.’s flexible and tough piezoelectric element PVDF; the piezoelectric power generation component 2-2 is provided with a fixing pin installation hole b 2-2-3, and the fixing pin 2-4 and the fixing pin installation hole b 2-2-3 Connection: The piezoelectric power generation component 2-2 is provided with a piezoelectric power generation component internal thread 2-2-4, and the fan external thread 2-1-1 is threadedly connected with the piezoelectric power generation component internal thread 2-2-4. The elastic substrate 2-2-1 is provided with a straight beam a 2-2-1-1, the elastic substrate 2-2-1 is provided with an L-shaped beam 2-2-1-2, and the elastic substrate 2- 2-1 is provided with a straight beam b 2-2-1-3; the elastic substrate 2-2-1 is provided with a fixed bump 2-2-1-4, and the fixed bump 2-2-1-4 is connected with the power generation Component mounting holes 2-3-3 are connected; the elastic base plate 2-2-1 is provided with an arc hinge I2-2-1-5, and the elastic base plate 2-2-1 is provided with an arc hinge II2-2- 1-6, the elastic base plate 2-2-1 is provided with an arc hinge III 2-2-1-7, which is used to reduce the torsional rigidity of the elastic base plate 2-3-1. The generator mounting frame 2-3 is provided with a generator inlet port 2-3-1, and the mixed gas enters the twisting power generation device 2 through the generator inlet port 2-3-1 and acts on the fan 2-1 , the fan 2-1 rotates under the action of the mixed gas to drive the piezoelectric power generation assembly 2-2 to twist; the generator mounting frame 2-3 is provided with a mounting frame threaded hole 2-3-2, and the locking screw 3 and The mounting frame threaded hole 2-3-2 is threaded; the generator mounting frame 2-3 is provided with a power generation assembly installation hole 2-3-3, and the piezoelectric power generation assembly 2-2 is inserted into the power generation assembly installation hole 2-3- 3 is connected to the generator installation frame 2-3; the generator installation frame 2-3 is provided with an exhaust hole 2-3-4, and the mixed gas is discharged from the twisting power generation device 2 through the exhaust hole 2-3-4.

The length of the overlapping part between the airflow inlet 1-1 and the airflow outlet 1-6 in the micropore flow regulator 1 is b, and the value of b satisfies the range of 5-15 mm, and the mixing can be changed by adjusting the value of b. The flow state of the gas; the value of b in this specific embodiment is 15 mm. The diameter of the air intake hole 1-4-2 in the fixed sleeve 1-4 is d ₀ , the ratio of b to d ₀ is F=b/d ₀ , and the value of F satisfies the range of 1~2, by adjusting The value of F can change the flow rate of the compressed gas provided; the value of F is 2 in this specific embodiment. The airflow inlet communication hole 1-1-4 in the airflow inlet 1-1 has a diameter of d ₁ , the ratio of b to d ₁ is G=b/d ₁ , and the value of G satisfies the range of 0.1~0.5. By adjusting G The value of G can change the flow rate of the gas; the value of G in this specific embodiment is 0.2. The diameter of the air outlet communication hole 1-6-1 in the air outlet 1-6 is d ₂ , the ratio of d ₁ to d ₂ is Z=d ₁ /d ₂ , and the value of Z satisfies the range of 0.6~0.8, The flow rate of the gas can be changed by adjusting the value of Z; the value of Z in this specific embodiment is 0.7. The diameter of the conical jet outlet 1-6-5 is d ₃ , and the ratio of the diameter d ₃ of the conical jet outlet 1-6-5 to the diameter d ₂ of the air outlet communication hole 1-6-1 is C=d ₃ /d ₂ , the value of C satisfies the range of 1 to 1.5, and the gas flow rate can be changed by adjusting the value of C; the value of C is 1 in this specific embodiment.

The torsion power generating device 2 is provided with a fan 2-1, the fan external thread 2-1-1 in the fan 2-1 has a length of H, and the value range of H satisfies 10~15, and the twist can be changed by adjusting the H value. The torque of the formula generator 2; the value of H in the present embodiment is 12. The piezoelectric power generation component 2-2 is provided with an elastic substrate 2-2-1, and the straight beam a 2-2-1-1 in the elastic substrate 2-2-1 has a length value A, and the value of A satisfies the range is 20-40 mm, and the stiffness of the straight beam a 2-2-1-1 can be changed by adjusting the value of A; the value of A in this embodiment is 25 mm. The relative deflection angle between the straight beam a 2-2-1-1 and the L-shaped beam 2-2-1-2 in the elastic substrate 2-2-1 is θ, and the value of θ satisfies a range of 10° to 20° , the power generation effect of the piezoelectric power generation component 2-2 can be adjusted by changing the value of θ; the value of θ in this specific embodiment is 15°. The straight beam b 2-2-1-3 in the elastic substrate 2-2-1 has a length value B, and the length of the straight beam b 2-2-1-3 is the same as that of the straight beam a 2-2-1-1 The ratio of the length A is K=B/A, and the value of K satisfies the range of 1~2, and the deformation amount of the elastic substrate 2-2-1 can be changed by adjusting the value of K; in this specific embodiment, the value of K is 1.25 . The curved hinge I 2-2-1-5 has a fillet radius value R ₁ , and the value of R ₁ satisfies a range of 1-3 mm; in this specific implementation manner, the value of R ₁ is 3 mm. The curved hinge II 2-2-1-6 has a fillet radius value R ₂ , the ratio of R ₂ to R ₁ is M=R ₂ /R ₁ , and the value of M satisfies the range of 0.2~1, by Adjusting the value of M can change the stiffness of the elastic substrate 2-2-1; the value of M in this specific embodiment is 0.5. The curved hinge III 2-3-1-7 has a fillet radius value R ₃ , the ratio of R ₃ to R ₁ is N=R ₃ /R ₁ , and the elastic substrate 2-2-1 can be changed by adjusting the N value For stiffness, the value of N satisfies a range of 0.2 to 1; in this embodiment, the value of N is 0.4.

The rectification circuit of the capture device includes alternating diodes (D ₆ -D ₉ ) and capacitor C ₁ . When the flow-increasing gas flows out from the airflow outlets 1-6, it acts on the twisting power generation device 2, and under the action of the positive piezoelectric effect, positive and negative alternating periodic electrical signals are generated, and the generated electrical signals are connected to the whole system through wires. The input terminal of the bridge rectifier circuit. When a positive electric signal is generated, diode D6 and diode _D9 are turned _on to form a closed loop, and electric energy can be stored in capacitor _C1 ; when a negative electric signal is generated, diode _D7 and diode _D8 are turned on to form a closed loop , and the flow direction of the rectified electrical signal is the same as the flow direction of the closed loop electrical signal of the diode D ₆ and the diode D ₉ , so the electric energy is still stored in the capacitor C ₁ . The rectified and stored electrical energy can flow out to the output terminal via _C1 to supply energy to low-power electronic devices. The diodes (D ₆ -D ₉ ) may be NI 5408 rectifier diodes, and the capacitance of the capacitor C ₁ is in the range of 100-1000 μF.

In summary, a windmill torsion energy capture device designed by the present invention using annulus jet excitation can solve the technical problems of low energy capture efficiency in micro energy capture devices used to capture gas pressure energy in the current industrial environment . The gas flow rate and flow can be amplified, thereby increasing the power generation efficiency by more than 3 times. It has broad application prospects in the technical field of power supply for low-power electronic devices such as low-power sensors and low-power devices.

Claims (4)

1. A windmill torsional energy capture device excited by annular jet flow, the windmill torsional energy capture device includes a micropore flow regulator (1), a torsional power generation device (2) and a locking screw (3), micro The pore flow regulator (1) is threadedly connected with the twisting power generation device (2) through the locking screw (3); the micropore flow regulator (1) includes the air inlet (1-1), the air inlet screw (1-2) , air inlet sealing ring (1-3), fixing sleeve (1-4), air outlet sealing ring (1-5), air outlet (1-6) and air outlet screw (1-7); air inlet ( 1-1) Threaded connection with the fixed sleeve (1-4) through the air inlet screw (1-2), the air outlet (1-6) and the fixed sleeve (1-4) through the air outlet screw (1-7) Threaded connection; the air inlet (1-1) is gas-tight with the fixed sleeve (1-4) through the air inlet sealing ring (1-3), and the air outlet (1-6) is connected with the air outlet sealing ring (1-5) The fixed sleeve (1-4) is gas-tight; the torsional power generation device (2) includes a fan (2-1), a piezoelectric power generation component (2-2), a generator mounting frame (2-3) and a fixing pin (2-4), the fan (2-1) is threadedly connected to the piezoelectric power generation component (2-2), and the piezoelectric power generation component (2-2) is fixed to the generator mounting frame (2-3); it is characterized in that: The air inlet (1-1) is provided with a suction hole (1-1-1), the air inlet (1-1) is provided with an air inlet threaded hole (1-1-2), and the air inlet screw (1-1-2) 2) Threaded connection with airflow inlet threaded hole (1-1-2), airflow inlet (1-1) is provided with airflow inlet sealing ring groove (1-1-3), airflow inlet (1-1) is provided with airflow The inlet communication hole (1-1-4); the fixed sleeve (1-4) is provided with a sleeve threaded hole a (1-4-1), and the sleeve threaded hole a (1-4-1) is connected with the airflow The inlet screw (1-2) is threaded, the fixed sleeve (1-4) is provided with an air inlet (1-4-2), and the fixed sleeve (1-4) is provided with a sleeve threaded hole b (1-4 -3), the air outlet screw (1-7) is threadedly connected with the sleeve threaded hole b (1-4-3); the air outlet (1-6) is provided with an air outlet communication hole (1-6-1) , air outlet sealing ring groove (1-6-2), air outlet threaded hole (1-6-3), air outlet threaded hole (1-6-3) and air outlet screw (1-7) threaded connection, The air outlet (1-6) is provided with a threaded connection hole (1-6-4) of the flow increasing device, and the threaded connection hole (1-6-4) of the flow increasing device is threadedly connected with the locking screw (3), and the air outlet (1 -6) There is a tapered air jet outlet (1-6-5); the fan (2-1) is provided with a fan external thread (2-1-1), and the fan (2-1) is provided with a fixing pin installation hole a (2-1-2), the fixing pin installation hole a (2-1-2) is connected with the fixing pin (2-4), the piezoelectric power generation component (2-2) An elastic substrate (2-2-1) and a piezoelectric element (2-2-2) are provided, and the piezoelectric element (2-2-2) and the elastic substrate (2-2-1) are adhesively connected to generate electricity by piezoelectricity The component (2-2) is provided with a fixing pin installation hole b (2-2-3), and the fixing pin installation hole b (2-2-3) is connected with the fixing pin (2-4), and the piezoelectric power generation component (2- 2) The internal thread of the piezoelectric power generation component (2-2-4) is provided, and the internal thread of the piezoelectric power generation component (2-2-4) is threadedly connected with the external thread of the fan (2-1-1); the piezoelectric power generation component ( 2-2) An elastic base plate (2-2-1) is provided, and the elastic base plate (2-2-1) is provided with a straight beam a (2-2-1-1), an L-shaped beam (2-2-1- 2) and the straight beam b (2-2-1-3), the elastic base plate (2-2-1) is provided with a fixed bump (2-2-1-4), the fixed bump (2-2-1- 4) Connect with the installation hole (2-3-3) of the power generation component, and the elastic base plate (2-2-1) is provided with arc hinge I (2-2-1-5), arc hinge II (2-2- 1-6) and arc hinge III (2-2-1-7); the generator mounting frame (2-3) is provided with a generator inlet (2-3-1), and the generator mounting frame ( 2-3) The threaded hole (2-3-2) of the mounting frame is provided, the locking screw (3) is threadedly connected with the threaded hole (2-3-2) of the mounting frame, and the generator mounting frame (2-3) is provided with Power generation component mounting holes (2-3-3) and vent holes (2-3-4). 2. A windmill torsion energy capture device excited by annulus jet according to claim 1, characterized in that: the overlapping length between the airflow inlet (1-1) and the airflow outlet (1-6) is b, the value range of b is 5~15mm; the diameter of the airflow inlet communication hole (1-1-4) is d ₁ , the ratio of b to d ₁ is G=b/d ₁ , the value range of G 0.1~0.5; the diameter of the air outlet communication hole (1-6-1) is d ₂ , the ratio of d ₁ to d ₂ is Z=d ₁ /d ₂ , and the value range of Z is 0.6~0.8; conical The diameter of the jet outlet (1-6-5) is d ₃ , and the diameter ratio of the conical jet outlet (1-6-5) to the air outlet communication hole (1-6-1) is C=d ₃ /d ₂ , The value of C satisfies the range of 1~1.5. 3. A windmill torsion energy capture device excited by an annular jet according to claim 1, characterized in that: the fan external thread (2-1-1) in the fan (2-1) has a length of H, the value range of H is 10~15; the straight beam a (2-2-1-1) and the L-shaped beam (2-2-1-2) in the elastic substrate (2-2-1) The relative deflection angle is θ, and the value range of θ is 10~20°; the fillet radius of the curved hinge I (2-2-1-5) is R ₁ , and the value range of R ₁ is 1 ~3 mm; the radius of the arc hinge II (2-2-1-6) is R ₂ , the ratio of R ₂ to R ₁ is M=R ₂ /R ₁ , and the range of M is 0.2~ 1; The radius of the arc hinge III (2-2-1-7) is R ₃ , the ratio of R ₃ to R ₁ is N=R ₃ /R ₁ , and the range of N is 0.2~1 . 4. A windmill torsion energy capture device excited by annulus jet according to claim 1, characterized in that: the piezoelectric element (2-2- 2) Piezoelectric ceramic sheet PZT or flexible and tough piezoelectric element PVDF can be selected.