Well-type power generation device based on vertical temperature difference of mountain and solar heat collection

Abstract

The present invention discloses a well-type power generation device based on the vertical temperature difference of a mountain and solar energy collection, which relates to the field of temperature difference power generation technology, including a well opened in the mountain, the bottom of the well being an air inlet, the top of the well being an air outlet, a heat storage device laid on the ground at the air inlet, a heat absorption device erected on the ground at the air inlet, a support template fixedly installed on the inner wall of the well, three generators fixedly installed in the well through three groups of mounting frames on the support template, a maintenance cavity corresponding to the three generators respectively provided in the mountain, the generator comprising a central axis, twenty-five blades, twenty-five rotating shafts, a current receiving assembly and an induction frame, the ends of the twenty-five rotating shafts being rotatably connected to a power generation ring, the power generation ring being rotatably connected to the inner wall of the induction frame, the present invention has the effect of being able to automatically adjust and control according to external environmental conditions through the mutual cooperation between the above structures to ensure that the airflow will not be difficult to circulate quickly.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature difference power generation, and in particular to a well-type power generation device based on vertical temperature difference of a mountain and solar heat collection. Background Art

[0002] Solar air thermal energy collection and high mountain well power generation is a new energy solution that utilizes natural geographical characteristics and renewable energy technology to efficiently and sustainably utilize the vertical temperature difference effect of the mountain and solar energy resources to generate electricity.

[0003] A device has been developed that involves digging a well in a mountain with a vertical temperature difference, creating a south-facing side opening at the foot of the mountain, and equipping it with a highly efficient solar air collector. This significantly raises the temperature of the air entering the well, thereby increasing the temperature difference between the foot and the top of the mountain and promoting the rate of rise of the hot air. As the hot air at the foot of the mountain naturally rises, it quickly flows to the cooler area at the top of the mountain. This hot air is then directed to a turbine engine installed in the well to generate electricity, achieving the engineering goal of highly efficient power generation.

[0004] When the temperature difference between the top of the mountain and the bottom of the mountain is less than a certain range, the flow of air in the wellbore will be relatively slow. When the airflow passes through the wind turbine, the flow rate will be further gradually slowed down. At this time, it is easy for the airflow to have difficulty in circulating quickly, that is, it is difficult to flow out from the top of the mountain. This phenomenon will occur when the temperature difference between the top of the mountain and the bottom of the mountain is not zero. Therefore, the existing device for generating electricity by using vertical temperature difference is still insufficient in actual use, and measures to ensure the rapid flow of air in the wellbore still need to be improved. Summary of the Invention

[0005] The purpose of the present invention is to provide a well-type power generation device based on the vertical temperature difference of the mountain and solar heat collection, which has the effect of automatically adjusting and controlling according to external environmental conditions to ensure rapid airflow, thereby solving the problems mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a well-type power generation device based on vertical temperature differences in a mountain and solar heat collection, further comprising a well tunnel opened in the mountain, the bottom of the well tunnel being an air inlet, the top of the well tunnel being an air outlet, a heat storage device being laid on the ground at the air inlet, a heat absorption device being erected on the ground at the air inlet, a support template being fixedly mounted on the inner wall of the well tunnel, three generators being fixedly mounted in the well tunnel via three sets of mounting frames on the support template, and maintenance chambers corresponding to the three generators being opened in the mountain tunnel;

[0007] The generator includes a central shaft, 25 blades, 25 rotating shafts, a current receiving assembly, and an induction frame. The 25 ends are rotatably connected to a power generation ring, which is rotatably connected to the inner wall of the induction frame. The central shaft is rotatably connected to the inner wall of the generator. A regulating component and a locking component for synchronously controlling the deflection state of the 25 blades are provided in the central shaft.

[0008] The well-type power generation device also includes an environmental monitoring component, a wind direction detection module, a generator adjustment module and an early warning module. The wind direction detection module is used to detect the wind inlet angle θ and adjust the temperature difference trigger threshold WC accordingly. The generator adjustment module is used to evaluate the operating status of the three generators based on environmental data. The early warning module is used to analyze the wind pressure fluctuations in the well. The control component is used to automatically adjust the blades according to the operating status of the generator and the wind pressure fluctuations in the well.

[0009] Optionally, the environmental monitoring component includes:

[0010] Temperature sensor 1 and temperature sensor 2, the temperature sensor 1 and the temperature sensor 2 are respectively arranged at the air inlet and the air outlet of the shaft, a wind direction vane is arranged at the air inlet of the ground, a flow rate sensor and a viscometer are arranged at the air inlet of the shaft, and a wind pressure sensor is arranged at the air inlet of the shaft.

[0011] Optionally, the regulating component includes a gear ring, the shaft walls of the twenty-five rotating shafts are rotatably connected to the inner wall of the central shaft, the shaft walls of the twenty-five rotating shafts are respectively fixedly connected to the inner walls of the twenty-five blades, the shaft walls of the twenty-five rotating shafts are fixedly connected to gears, the teeth of the twenty-five gears are meshed with the teeth of the gear ring, the inner wall of the generator is fixedly connected to a regulating motor, the output end of the regulating motor is fixedly connected to the surface of the gear ring, and a locking component is also included.

[0012] Optionally, the wind direction detection module detection process is as follows:

[0013] The radial overlap direction of the air inlet of the shaft is 90°;

[0014]

[0015] Where WD represents the wind direction impact level;

[0016] θ represents the air inlet angle, that is, the air inlet angle of the hoistway;

[0017] WC=α×(W1-W2)

[0018] Where WC represents the temperature difference trigger threshold;

[0019] W1 is the temperature at the air inlet at the bottom of the mountain;

[0020] W2 is the temperature at the air outlet on the top of the mountain;

[0021] When WD=1, it is a high level, indicating that the external wind direction is superimposed on the airflow in the wellbore to increase the speed. At this time, α is

[0022] When WD=2, it is the middle level, which means that the external wind direction is only accelerating the airflow in the well.

[0023] When WD=3, it is a low level, indicating that the external wind direction is not accelerating the airflow in the shaft, and α is 1 at this time;

[0024] By detecting the wind direction of the current environment and setting the wind direction influence level, the temperature difference trigger threshold WC is adjusted according to the wind direction influence level. When the actual temperature difference ≥ the temperature difference trigger threshold WC, the control component is not started. When the actual temperature difference < the temperature difference trigger threshold WC, the control component is started.

[0025] Optionally, the environmental data includes the flow velocity v and the Reynolds number R of the fluid e During the regulation process of the generator regulation module, the flow velocity v of the fluid is obtained as follows:

[0026]

[0027] Where v is the flow velocity of the fluid;

[0028] P air is the air pressure;

[0029] ρ air is the air density;

[0030] The wind speed threshold value of the fluid flow velocity v is set to V1. When the fluid flow velocity v> the wind speed threshold value V1, it indicates a high wind speed state;

[0031] When the fluid velocity v ≤ wind speed threshold V1, it indicates a low wind speed state;

[0032] Fluid Reynolds number R e The process is as follows:

[0033]

[0034] where R e is the Reynolds number of the fluid;

[0035] v is the flow velocity of the fluid;

[0036] ρ is the density of the fluid;

[0037] μ is the viscosity coefficient;

[0038] d is the length of the shaft;

[0039] Set the fluid Reynolds number R e The Reynolds threshold is R1;

[0040] When R e When it is greater than R1, it indicates that the Reynolds number is high, which means that the airflow is in a turbulent state;

[0041] When R e When ≤R1, it means the Reynolds number is low; this means the airflow is in a laminar state;

[0042]

[0043] Where A=a, A=b, and A=c represent the three fluid states in the wellbore respectively;

[0044] When A=a, it is the first level, indicating that the fluid is turbulent with high flow rate;

[0045] When A=b, it is the second level, indicating that the fluid is at a low flow rate;

[0046] When A=c, it is the third level, indicating that the fluid is in laminar flow with high velocity;

[0047] When in the first level, the generator in the middle position is turned off; when in the second level, the two generators in the middle position and near the air outlet are turned off; when in the third level, all three generators are not turned off.

[0048] Optionally, the early warning process of the early warning module is as follows:

[0049]

[0050] Where p(t) is the wind pressure at time t;

[0051] ρ(t) is the air density at time t, which changes with temperature and pressure;

[0052] v(t) is the wind speed at time t;

[0053] Δp=|p(t)-p(t-1)|

[0054] Where p(t) is the wind pressure at time t;

[0055] p(t-1) is the wind pressure at time t-1;

[0056] Δp is the difference in wind pressure between time point t and time point t-1;

[0057] Set the wind pressure threshold of the wind pressure difference Δp between time point t and time point t-1 to Δp threshold , if the wind pressure threshold Δp threshold < the wind pressure difference Δp between time point t and time point t-1, it is judged that the wind pressure fluctuation is too large, and the 25 blades on the generator may encounter uneven wind pressure, affecting safe operation. At this time, all three groups of control components are in operation, causing the blades of the three groups of generators to be in a non-working state.

[0058] Optionally, the locking component includes an electromagnet, the electromagnet is embedded in the inner wall of the induction frame, and the inner wall of the power generation ring is embedded with an iron ring.

[0059] Optionally, the blades are made of a waterproof and corrosion-resistant material, the heat storage device stores heat using pebbles, and the heat absorption device absorbs heat by erecting a plastic film.

[0060] Compared with the prior art, the present invention has the following beneficial effects:

[0061] 1. The present invention utilizes the temperature difference between the air outlet and the air inlet of the well to drive the generator to generate electricity through the coordination of the well, the heat absorption device and the heat storage device. This allows the device to generate electricity all year round, with low energy consumption and a high economic return rate.

[0062] Second, considering that when the temperature difference between the top of the mountain and the bottom of the mountain is less than a certain range, the airflow in the well will flow slowly. In order to avoid the situation where the airflow has difficulty flowing out of the air outlet, the present invention uses the coordination of structures such as gears, rotating shafts and gear rings, collects data on the surrounding environment of the device through environmental monitoring components, and separately controls the deflection states of the blades on the three groups of generators, thereby reducing the airflow resistance and avoiding the situation where the airflow in the well is difficult to circulate.

[0063] 3. The present invention uses a wind direction detection module to perform real-time analysis on the collected data to determine the value of the temperature difference trigger threshold that triggers the operation of the control component, thereby making the airflow resistance reduction control performed by the device more accurate and more targeted.

[0064] 4. The present invention makes a comprehensive judgment on the air flow velocity and Reynolds number in the well, sets the fluid in three states: turbulent flow with high velocity, low velocity, and laminar flow with high velocity, and proposes three corresponding groups of operating states of control components according to the three states, so that the control measures to avoid the situation where the air flow in the well is difficult to circulate are more targeted and more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 It is a first plane cross-sectional view of the present invention;

[0066] Figure 2 It is a second plane cross-sectional view of the present invention;

[0067] Figure 3 For the present invention Figure 3 A magnified view of the structure at center A;

[0068] Figure 4 It is a third plane cross-sectional view of the present invention;

[0069] Figure 5 For the present invention Figure 4 A magnified view of the structure at B in the middle;

[0070] Figure 6 For the present invention Figure 5 A magnified view of the structure at center C;

[0071] Figure 7 It is a cross-sectional view of the connection portion between the power generation coil and the induction frame of the present invention;

[0072] Figure 8 A top view of the generator of the present invention;

[0073] Figure 9 The figure is a schematic diagram of the transmission from the motor to the rotating shaft in a top view of the present invention;

[0074] Figure 10 This is an axonometric view of the blade and the rotating shaft of the present invention;

[0075] Figure 11 It is a schematic diagram of the modules of the present invention;

[0076] Figure 12 This is a flow chart of the wind direction detection module of the present invention;

[0077] Figure 13 This is a flow chart of the generator regulation module of the present invention;

[0078] Figure 14 Flowchart of the early warning module of the present invention.

[0079] Figure: 1. Ground; 2. Mountain; 3. Shaft; 4. Heat absorber; 5. Support template; 6. Mounting frame; 7. Generator; 8. Maintenance chamber; 9. Control motor; 10. Gear ring; 11. Gear; 12. Heat storage device; 21. Electromagnet; 22. Iron ring.

[0080] 701, central axis; 702, blades; 703, rotating shaft; 704, power generation coil; 705, induction frame; 706, current receiving component. DETAILED DESCRIPTION

[0081] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0082] Example 1:

[0083] See also Figures 1 to 14 The present invention provides a well-type power generation device based on the vertical temperature difference of the mountain and solar heat collection, which also includes a well 3 opened in the mountain 2, the bottom of the well 3 is an air inlet, the top of the well 3 is an air outlet, the ground 1 is provided with a heat storage device 12 at the air inlet, and the ground 1 is provided with a heat absorption device 4 at the air inlet. A support template 5 is fixedly installed on the inner wall of the well 3, and three generators 7 are fixedly installed in the well 3 by three groups of mounting frames 6 on the support template 5. A maintenance cavity 8 corresponding to the three generators 7 is opened in the mountain 2;

[0084] The generator 7 includes a central axis 701, 25 blades 702, 25 rotating shafts 703, a current receiving assembly 706, and a sensing frame 705. The ends of the 25 rotating shafts 703 are rotatably connected to a generator ring 704, which is rotatably connected to the inner wall of the sensing frame 705. The central axis 701 is rotatably connected to the inner wall of the generator 7. The central axis 701 is provided with a control component and a locking component for synchronously controlling the deflection state of the 25 blades 702.

[0085] The system also includes an environmental monitoring component, a wind direction detection module, a generator adjustment module, and an early warning module. The wind direction detection module is used to detect the wind inlet angle θ and adjust the temperature difference trigger threshold WC accordingly. The generator adjustment module is used to evaluate the operating status of the three generators 7 based on environmental data. The early warning module is used to analyze the wind pressure fluctuations in the shaft 3. The control component is used to automatically adjust the blades 702 according to the operating status of the generator 7 and the wind pressure fluctuations in the shaft 3.

[0086] The environmental monitoring components include temperature sensor 1 and temperature sensor 2, which are respectively arranged at the air inlet and air outlet of the shaft 3. A wind direction vane is arranged at the air inlet of the ground 1, a flow rate sensor and a viscometer are arranged at the air inlet of the shaft 3, and a wind pressure sensor is arranged at the air inlet of the shaft 3.

[0087] The regulating component includes a gear ring 10. The shaft walls of the twenty-five rotating shafts 703 are all rotatably connected to the inner wall of the central shaft 701. The shaft walls of the twenty-five rotating shafts 703 are respectively fixedly connected to the inner walls of the twenty-five blades 702. The shaft walls of the twenty-five rotating shafts 703 are all fixedly connected to the shaft walls of the twenty-five rotating shafts 703. The teeth of the twenty-five gears 11 are all meshed with the teeth of the gear ring 10. The inner wall of the generator 7 is fixedly connected to the regulating motor 9. The output end of the regulating motor 9 is fixedly connected to the surface of the gear ring 10. A locking component is also included.

[0088] The locking component includes: an electromagnet 21, which is embedded in the inner wall of the induction frame 705, and an iron ring 22 is embedded in the inner wall of the power generation circle 704;

[0089] The material of the blade 702 is waterproof and corrosion-resistant material, the heat storage device 12 stores heat based on the principle of pebbles, and the heat absorption device 4 absorbs heat based on the principle of setting up a plastic film.

[0090] More specifically, in this embodiment, by opening the well 3 and making the air outlet face south, a temperature difference will be generated at the air outlet and the air inlet of the well 3 under daily use conditions. The temperature difference is used to make the air flow flow from the high temperature position to the low temperature position in the well 3. At the same time, by paving pebbles over a large area, the heat storage device 12 accumulates a large amount of heat at the air inlet, so that a larger temperature difference is generated between the foot of the mountain and the top of the mountain, thereby driving the air flow in the well 3 to flow upward rapidly. The rapid upward airflow in the well 3 causes the blades 702 on the generator 7 to move, thereby being driven by the airflow, and the power generation coil 704 to rotate rapidly along the inner wall of the induction frame 705 through the transmission of the rotating shaft 703, thereby utilizing the power generation principle of electromagnetic induction to continuously cut the magnetic flux lines to generate electricity. The generated current is stored by the current receiving component 706. The work of generating current for power generation and storage is a prior art, and the specific principle will not be repeated here.

[0091] During use, when the temperature difference between the top of the mountain and the bottom of the mountain is less than a certain range, the airflow in the shaft 3 will flow relatively slowly. The airflow will pass through the three sets of generators 7 in sequence, and the flow rate will be further slowed down. Therefore, when the temperature difference between the top of the mountain and the bottom of the mountain is small, there is a situation where the airflow has difficulty flowing out of the air outlet. At this time, the environmental monitoring component can be used to collect data about the surrounding environment of the device, and the wind direction detection module and the generator adjustment module can be used to perform real-time analysis on the collected data. The deflection state of the blades 702 on the three sets of generators 7 can be controlled as needed based on the analyzed data, thereby reducing the airflow resistance and avoiding the situation where the airflow in the shaft 3 is difficult to circulate.

[0092] When it is necessary to control the deflection of the blades 702, the current stored in the power generation of the generator 7 can be used to drive the control motor 9 in a small range, that is, the gear ring 10 is rotated in a small range. The small rotation of the gear ring 10 causes the gear 11 to rotate on its own. Taking the transmission of a single gear 11 as an example, the rotation of the gear 11 can cause the connected rotating shaft 703 to rotate on its own, and the rotation of the rotating shaft 703 can cause the blades 702 to self-deflect, so that the blades 702 are adjusted to a state where they do not block the airflow path. In this way, the small rotation of the gear ring 10 can make all 25 blades 702 on the generator 7 be self-deflected. At the same time, in this process, the current stored in the power generation of the generator 7 can also energize the electromagnet 21, so that the electromagnet 21 generates magnetism and attracts the iron ring 22, so that the generating ring 704 and the induction frame 705 remain in a relatively static state. That is, through this measure, the blades 702 will not generate revolution-type power generation.

[0093] The opening of shaft 3 can be carried out by utilizing existing conditions such as abandoned mine tunnels, vertical shafts formed due to geological exploration, and abandoned emergency projects. It is only necessary to erect a supporting structure on the inner wall, which can greatly reduce construction costs.

[0094] Example 2, based on the above example:

[0095] See also Figure 2 In this embodiment, the distance of the shaft 3 can be set to 800 meters, and multiple generators 7 can be evenly spaced at intervals of 100 meters. Based on this, the vertical spatial position of the shaft 3 is divided into three sections. When it is necessary to control one generator 7 in the above process, in this embodiment, it is regarded as synchronously controlling all the generator sets contained in the area involved in the shaft 3. By setting up multiple generators 7, the energy conversion rate of the device can be significantly improved.

[0096] Example 3, based on the above example:

[0097] See also Figure 1 、 Figures 11 to 14 The environmental monitoring components include temperature sensor 1 and temperature sensor 2, which are respectively arranged at the air inlet and air outlet of the shaft 3. A wind direction vane is arranged at the air inlet of the ground 1, a flow rate sensor and a viscometer are arranged at the air inlet of the shaft 3, and a wind pressure sensor is arranged at the air inlet of the shaft 3;

[0098] The wind direction detection module detection process is as follows:

[0099] The radial overlap direction of the air inlet of shaft 3 is 90°;

[0100]

[0101] Where WD represents the wind direction impact level;

[0102] θ represents the air inlet angle, i.e. the air inlet angle of the shaft 3;

[0103] WC=α×(W1-W2)

[0104] Where WC represents the temperature difference trigger threshold;

[0105] W1 is the temperature at the air inlet at the bottom of the mountain;

[0106] W2 is the temperature at the air outlet on the top of the mountain;

[0107] When WD=1, it is a high level, indicating that the external wind direction is in a state of superimposing and accelerating the airflow in the shaft 3. At this time, α is

[0108] When WD=2, it is the middle level, indicating that the external wind direction is only accelerating the airflow in the shaft 3. At this time, α is

[0109] When WD=3, it is a low level, indicating that the external wind direction is in a non-accelerating state for the airflow in the shaft 3, and α is 1 at this time;

[0110] By detecting the wind direction of the current environment and setting the wind direction influence level, the temperature difference trigger threshold WC is adjusted according to the wind direction influence level. When the actual temperature difference ≥ the temperature difference trigger threshold WC, the control component is not started. When the actual temperature difference < the temperature difference trigger threshold WC, the control component is started.

[0111] More specifically, in this embodiment: by means of a wind direction indicator provided at the air inlet 1 on the ground, the wind direction of the current natural environment is detected, and by judging the direction of the air inlet angle θ, it is determined whether the airflow generated by the temperature difference in the well 3 is in the three states of superimposed acceleration, acceleration or non-acceleration, and the temperature difference trigger threshold WC is adjusted according to the current level, that is, when the actual temperature difference ≥ the temperature difference trigger threshold WC, the control component is not started, and when the actual temperature difference < the temperature difference trigger threshold WC, the control component is started. More specifically, when the natural air inlet is in the state of superimposed acceleration of the airflow in the well 3, the temperature difference trigger threshold WC for triggering the operation of the control component is relatively low, and when the natural air inlet is in the state of non-acceleration of the airflow in the well 3, the temperature difference trigger threshold WC for triggering the operation of the control component is relatively high.

[0112] In this way, first of all, the situation that the airflow is difficult to flow out from the outlet when the temperature difference between the top of the mountain and the bottom of the mountain is small is taken into consideration, that is, when the actual temperature difference is less than the temperature difference trigger threshold WC, the blades 702 of the generator 7 can be controlled as needed to reduce the airflow resistance and avoid the situation where it is difficult to circulate. At the same time, the wind direction factor in the natural environment is also used to regulate the temperature difference trigger threshold WC, making the device more practical and the actual regulation timing more accurate.

[0113] Example 4, based on the above example:

[0114] See also Figures 2 to 13 , environmental data include the fluid velocity v and the fluid Reynolds number R e During the adjustment process of the generator adjustment module, the flow velocity v of the fluid is obtained as follows:

[0115]

[0116] Where v is the flow velocity of the fluid;

[0117] P air is the air pressure;

[0118] ρ air is the air density;

[0119] The wind speed threshold value of the fluid flow velocity v is set to V1. When the fluid flow velocity v> the wind speed threshold value V1, it indicates a high wind speed state;

[0120] When the fluid velocity v ≤ wind speed threshold V1, it indicates a low wind speed state;

[0121] Fluid Reynolds number R e The process is as follows:

[0122]

[0123] where R e is the Reynolds number of the fluid;

[0124] v is the flow velocity of the fluid;

[0125] ρ is the density of the fluid;

[0126] μ is the viscosity coefficient;

[0127] d is the length of the shaft;

[0128] Set the fluid Reynolds number R e The Reynolds threshold is R1;

[0129] When R e When it is greater than R1, it indicates that the Reynolds number is high, which means that the airflow is in a turbulent state;

[0130] When R e When ≤R1, it means the Reynolds number is low; this means the airflow is in a laminar state;

[0131]

[0132] Where A=a, A=b, and A=c represent the three fluid states in the well 3 respectively;

[0133] When A=a, it is the first level, indicating high fluid velocity and high Reynolds number;

[0134] When A=b, it is the second level, indicating that the fluid is at a low flow rate;

[0135] When A=c, it is the third level, indicating that the fluid is in a high flow rate and low Reynolds number state;

[0136] When in the first level, the generator 7 in the middle position is turned off; when in the second level, the two generators 7 in the middle position and near the air outlet are turned off; when in the third level, all three generators 7 are not turned off.

[0137] More specifically, in this embodiment, the flow velocity sensor, viscometer, and wind pressure sensor provided in the shaft 3 are used to detect the corresponding data, and the wind speed threshold value of the fluid flow velocity v is set to V1. When the fluid flow velocity v> the wind speed threshold value V1, it is represented as a high wind speed state, and when the fluid flow velocity v≤ the wind speed threshold value V1, it is represented as a low wind speed state, thereby determining whether the airflow in the shaft 3 is in a high speed state or a low speed state, and judging the Reynolds number R of the current fluid. e On this basis, the fluid Reynolds number R is set e The Reynolds threshold is R1, based on which it is judged whether the current airflow is in a turbulent state or a laminar state. When the fluid is in a turbulent state with a high flow rate, the blades 702 of the generator 7 located in the middle position are deflected and controlled to be in a non-blocking state. When the fluid is in a laminar flow with a high flow rate, all three generators 7 are used normally. When the fluid is in a low flow rate, the blades 702 of the two generators 7 in the middle position and near the air outlet are deflected and controlled to be in a non-blocking state.

[0138] In summary, when the temperature difference between the top of the mountain and the bottom of the mountain is large, the three generators 7 are all used for normal power generation. When the temperature difference between the top of the mountain and the bottom of the mountain is small, the wind speed and Reynolds number of the fluid in the well 3 are judged, and the blades 702 of the three generators 7 are controlled as needed. When the fluid is turbulent with a high flow rate, the blades 702 of the generator 7 located in the middle position are deflected and controlled to be in a non-blocking state. At this time, the upper and lower generators 7 are used to generate electricity. Due to the high wind speed, the airflow in the well 3 can flow, and the blades 702 of the middle generator 7 will not block the airflow. In this way, the distance between adjacent generators 7 in working state is increased, thereby avoiding further aggravation of turbulence of two adjacent generators 7 in working state due to the high Reynolds number, and at the same time, it does not affect the continuity of the overall power generation operation of the device.

[0139] When the fluid is at a low flow rate, the blades 702 of the two generators 7 in the middle position and near the air outlet are deflected and controlled to be in a non-blocking state. At this time, the generator 7 that first contacts the airflow is used to generate electricity. This reduces the resistance of the airflow passing through the well 3 by reducing the overall power generation per unit time while maintaining overall sustainable power generation, thereby avoiding the difficulty of airflow circulation in the well 3. When the fluid is at a high flow rate and low Reynolds number state, due to the high wind speed, there is no need to consider the impact of the Reynolds number, that is, the three generators 7 all work normally.

[0140] Example 5, based on the above example:

[0141] See also Figures 2 to 14 ,The warning process of the early warning module is as follows:

[0142]

[0143] Where p(t) is the wind pressure at time t;

[0144] ρ(t) is the air density at time t, which changes with temperature and pressure;

[0145] v(t) is the wind speed at time t;

[0146] Δp=|p(t)-p(t-1)|

[0147] Where p(t) is the wind pressure at time t;

[0148] p(t-1) is the wind pressure at time t-1;

[0149] Δp is the difference in wind pressure between time point t and time point t-1;

[0150] Set the wind pressure threshold of the wind pressure difference Δp between time point t and time point t-1 to Δpthreshold , if the wind pressure threshold Δp threshold < the wind pressure difference Δp between time point t and time point t-1, it is judged that the wind pressure fluctuation is too large, and the twenty-five blades 702 on the generator 7 may encounter uneven wind pressure, affecting safe operation. At this time, all three groups of control components are in operation, causing the blades 702 of the three groups of generators 7 to be in a non-working state.

[0151] More specifically, in this embodiment, considering that excessive wind pressure fluctuations will affect the working stability and working efficiency of the blade 702, in order to improve the long-term use of the equipment, the wind pressure value in the shaft 3 is recorded once every time point, and the wind pressure threshold value Δp of the wind pressure difference Δp between time point t and time point t-1 is set to Δp threshold， If the wind pressure threshold Δp threshold < the wind pressure difference Δp between time point t and time point t-1, then it is determined that the wind pressure in the shaft 3 is fluctuating excessively. In this state, the twenty-five blades 702 on the generator 7 may encounter uneven wind pressure. At this time, all three groups of control components are in operation, so that the blades 702 of the three groups of generators 7 are all in a non-operating state, thereby avoiding an abnormal working environment and preventing the long-term stability of the generator 7 from being affected.

[0152] It is worth noting that the early warning module has a higher priority than the generator regulation module.

[0153] Working principle: When the well-type power generation device based on the vertical temperature difference of the mountain and solar heat collection is used, the temperature difference between the air outlet and the air inlet of the well 3 is used to drive the generator 7 to generate electricity, and a heat storage device 12 and a heat absorption device 4 are added to make a large amount of heat accumulate at the air inlet, so that the device can generate electricity all year round. Considering that when the temperature difference between the top of the mountain and the bottom of the mountain is less than a certain range, the air flow in the well 3 will be relatively slow. The air flow passes through the three groups of generators 7 in turn, and the flow rate will be further slowed down. Therefore, when the temperature difference between the top of the mountain and the bottom of the mountain is small, it is difficult for the air flow to flow out from the air outlet. At this time, the surrounding environment of the device can be monitored by the environmental monitoring component. The system collects data from the environment and uses the wind direction detection module and the generator adjustment module to perform real-time analysis on the collected data, so as to control the deflection state of the blades 702 on the three groups of generators 7 as needed based on the analyzed data. Before the control, the wind direction of the current environment is first detected and the wind direction influence level is set. The temperature difference trigger threshold WC is adjusted according to the wind direction influence level. When the natural air intake is in a state of superimposing and accelerating the airflow in the well 3, the temperature difference trigger threshold WC that triggers the operation of the control component is relatively low. When the natural air intake is in a state of non-accelerating the airflow in the well 3, the temperature difference trigger threshold WC that triggers the operation of the control component is relatively high.

[0154] When the actual temperature difference is less than the temperature difference trigger threshold WC, the wind speed and Reynolds number of the fluid in the shaft 3 will also be judged. When the fluid is turbulent with a high flow rate, the blades 702 of the generator 7 located in the middle position are deflected and controlled to be in a non-blocking state. At this time, the upper and lower generators 7 are used to generate electricity. Due to the high wind speed, the airflow in the shaft 3 can flow. At the same time, the blades 702 of the middle generator 7 will not block the airflow, thereby increasing the distance between adjacent generators 7 in operation to avoid further aggravation of turbulence between the two adjacent generators 7 in operation due to the high Reynolds number, while also not affecting the continuity of the overall power generation operation of the device.

[0155] When the fluid is at a low flow rate, the blades 702 of the two generators 7 in the middle position and near the air outlet are deflected and controlled to be in a non-blocking state. At this time, the generator 7 that first contacts the airflow is used to generate electricity. This reduces the resistance of the airflow passing through the well 3 by reducing the overall power generation per unit time while maintaining overall sustainable power generation, thereby avoiding the difficulty of airflow circulation in the well 3. When the fluid is at a high flow rate and low Reynolds number, due to the high wind speed, there is no need to consider the influence of the Reynolds number. That is, the three generators 7 all operate normally. In this way, by reducing the airflow flow resistance as needed, the difficulty of airflow circulation in the well 3 can be specifically avoided.

[0156] At the same time, when the wind pressure fluctuation in the shaft 3 is too large, the three groups of control components are all in operation, so that the blades 702 of the three groups of generators 7 are all in a non-working state, thereby avoiding an abnormal working environment and avoiding affecting the long-term stability of the generator 7.

[0157] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A well-type power generation device based on vertical temperature differences in the mountain and solar heat collection, characterized by: It also includes a well (3) opened in the mountain (2), the bottom of the well (3) is an air inlet, the top of the well (3) is an air outlet, the ground (1) is located at the air inlet and is provided with a heat storage device (12), the ground (1) is located at the air inlet and is provided with a heat absorption device (4), the inner wall of the well (3) is fixedly installed with a support template (5), three generators (7) are fixedly installed in the well (3) through three groups of mounting frames (6) on the support template (5), and maintenance chambers (8) corresponding to the three generators (7) are opened in the mountain (2); The generator (7) comprises a central axis (701), twenty-five blades (702), twenty-five rotating shafts (703), a current receiving component (706) and an induction frame (705); the ends of the twenty-five rotating shafts (703) are rotatably connected to a power generation ring (704); the power generation ring (704) is rotatably connected to the inner wall of the induction frame (705); the central axis (701) is rotatably connected to the inner wall of the generator (7); and a regulating component and a locking component for synchronously controlling the deflection state of the twenty-five blades (702) are provided in the central axis (701); The well-type power generation device further comprises an environmental monitoring component, a wind direction detection module, a generator adjustment module and an early warning module. The wind direction detection module is used to detect an air inlet angle θ and adjust a temperature difference trigger threshold WC accordingly. The generator adjustment module is used to evaluate the operating status of the three generators (7) based on environmental data. The early warning module is used to analyze wind pressure fluctuations in the well (3). The control component is used to automatically adjust the blades (702) based on the operating status of the generators (7) and the wind pressure fluctuations in the well (3).

2. The well-type power generation device based on vertical temperature difference of a mountain and solar heat collection according to claim 1 is characterized in that: The environmental monitoring component includes: Temperature sensor 1 and temperature sensor 2 are respectively arranged at the air inlet and air outlet of the well (3); a wind direction vane is arranged at the air inlet of the ground (1); a flow rate sensor and a viscometer are arranged at the air inlet of the well (3); and a wind pressure sensor is arranged at the air inlet of the well (3).

3. The well-type power generation device based on vertical temperature difference of a mountain and solar heat collection according to claim 2 is characterized in that: The regulating component includes: A gear ring (10), the shaft walls of the twenty-five rotating shafts (703) are all rotatably connected to the inner wall of the central shaft (701), the shaft walls of the twenty-five rotating shafts (703) are respectively fixedly connected to the inner walls of the twenty-five blades (702), the shaft walls of the twenty-five rotating shafts (703) are all fixedly connected to gears (11), the teeth of the twenty-five gears (11) are all meshed with the teeth of the gear ring (10), the inner wall of the generator (7) is fixedly connected to a regulating motor (9), and the output end of the regulating motor (9) is fixedly connected to the surface of the gear ring (10); A locking component is also included.

4. The well-type power generation device based on vertical temperature difference of a mountain and solar heat collection according to claim 3 is characterized in that: The wind direction detection module detection process is as follows: The radial overlap direction of the air inlet of the well (3) is 90°; Where WD represents the wind direction impact level; θ represents the air inlet angle, i.e. the air inlet angle of the shaft (3); WC=α×(W1-W2) Where WC represents the temperature difference trigger threshold; W1 is the temperature at the air inlet at the bottom of the mountain; W2 is the temperature at the air outlet on the top of the mountain; When WD=1, it is a high level, indicating that the external wind direction is superimposed on the airflow in the shaft (3) to increase the speed. At this time, α is When WD=2, it is the middle level, which means that the external wind direction is only accelerating the airflow in the shaft (3). At this time, α is When WD=3, it is a low level, indicating that the external wind direction is in a non-accelerating state for the airflow in the shaft (3), and at this time α is 1; By detecting the wind direction of the current environment and setting the wind direction influence level, the temperature difference trigger threshold WC is adjusted according to the wind direction influence level. When the actual temperature difference ≥ the temperature difference trigger threshold WC, the control component is not started. When the actual temperature difference < the temperature difference trigger threshold WC, the control component is started.

5. The well-type power generation device based on vertical temperature difference of a mountain and solar heat collection according to claim 4 is characterized in that: The environmental data include the flow velocity v of the fluid and the Reynolds number R of the fluid e During the regulation process of the generator regulation module, the flow velocity v of the fluid is obtained as follows: Where v is the flow velocity of the fluid; P air is the air pressure; ρ air is the air density; The wind speed threshold value of the fluid flow velocity v is set to V1. When the fluid flow velocity v> the wind speed threshold value V1, it indicates a high wind speed state; When the fluid velocity v ≤ wind speed threshold V1, it indicates a low wind speed state; Fluid Reynolds number R e The process is as follows: where R e is the Reynolds number of the fluid; v is the flow velocity of the fluid; ρ is the density of the fluid; μ is the viscosity coefficient; d is the length of the shaft; Set the fluid Reynolds number R e The Reynolds threshold is R1; When R e When it is greater than R1, it indicates that the Reynolds number is high, which means that the airflow is in a turbulent state; When R e When ≤R1, it means the Reynolds number is low; this means the airflow is in a laminar state; Where A=a, A=b, and A=c represent the three fluid states in the well (3) respectively; When A=a, it is the first level, indicating that the fluid is turbulent with high flow rate; When A=b, it is the second level, indicating that the fluid is at a low flow rate; When A=c, it is the third level, indicating that the fluid is in laminar flow with high velocity; When the system is at the first level, the generator (7) at the middle position is turned off; when the system is at the second level, the two generators (7) at the middle position and near the air outlet are turned off; and when the system is at the third level, all three generators (7) are not turned off.

6. The well-type power generation device based on vertical temperature difference of a mountain and solar heat collection according to claim 5 is characterized in that: The early warning process of the early warning module is as follows: Where p(t) is the wind pressure at time t; ρ(t) is the air density at time t, which changes with temperature and pressure; v(t) is the wind speed at time t; Δp=|p(t)-p(t-1)| Where p(t) is the wind pressure at time t; p(t-1) is the wind pressure at time t-1; Δp is the difference in wind pressure between time point t and time point t-1; Set the wind pressure threshold of the wind pressure difference Δp between time point t and time point t-1 to Δp threshold , if the wind pressure threshold Δp threshold < the wind pressure difference Δp between time point t and time point t-1, it is judged that the wind pressure fluctuation is too large, and the twenty-five blades (702) on the generator (7) may encounter uneven wind pressure, affecting safe operation. At this time, all three groups of control components are in operation, so that the blades (702) of the three groups of generators (7) are in a non-operating state.

7. The well-type power generation device based on vertical temperature difference of a mountain and solar heat collection according to claim 3 is characterized in that: The locking component comprises: The electromagnet (21) is embedded in the inner wall of the induction frame (705), and the inner wall of the power generation ring (704) is embedded with an iron ring (22).

8. The well-type power generation device based on vertical temperature difference of a mountain and solar heat collection according to claim 7 is characterized in that: The blades (702) are made of a waterproof and corrosion-resistant material, the heat storage device (12) stores heat in the form of pebbles, and the heat absorption device (4) absorbs heat by erecting a plastic film.

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