WO2017012181A1

WO2017012181A1 - Large-power wind power generation device

Info

Publication number: WO2017012181A1
Application number: PCT/CN2015/088744
Authority: WO
Inventors: 刘金怀
Original assignee: 刘金怀
Priority date: 2015-07-22
Filing date: 2015-09-01
Publication date: 2017-01-26
Also published as: CN104963815A; CN104963815B

Abstract

A large-power wind power generation device comprises at least two fans (1), a turbine generator (2), and a solar electric heating device (3). The at least two fans (1) are communicated with an air inlet of the turbine generator (2) by means of parallel gas pipelines. The solar electric heating device (3) is electrically connected to a standby gas tank of each fan (1). The device greatly improves the installed capacity of a single set, the generating capacity is stable, the output voltage is stable, filtering and rectification are not required, the device can be interlaced and laminated in space, and the limited space of a wind field can be more effectively utilized.

Description

High-power wind power generation device

Technical field

The invention relates to a power generating device, in particular to a high power wind power generating device.

Background technique

At present, domestic and foreign mainstream wind turbines, the single power of 5 megawatts, due to low wind efficiency (30% -60%), the manufacture of 5 megawatts, requires a lot of large equipment, expensive, single machine It weighs 756 tons, has a blade length of 62 meters, and has a cabin weight of 260 tons. It requires more than 2,400 tons of special lifting equipment for installation. According to the price of 6000-8000 yuan per kilowatt, the cost of a 5 MW unit will be 30-40 million. yuan.

The single set of thermal power generators can easily achieve 500 megawatts, and the largest in the country can reach 1000 megawatts. The mainstream wind turbines at home and abroad are slightly inferior to the thermal power generating units. The current limited wind farm resources are Prerequisites, improving the single installed capacity of the domestic wind power market is the only way for wind power generation. At present, the domestic mainstream wind power generation equipment adopts horizontal axis lift type blades. Due to its large occupied space, multiple wind turbines need a certain separation distance. The number of installed wind farms is greatly limited, so that a large amount of wind resources in the wind farm cannot be fully utilized.

Summary of the invention

The technical problem to be solved by the present invention is to provide a high-power wind power generation device, which greatly improves the capacity of a single machine assembly machine, has stable power generation, stable output voltage, does not require filtering, rectification, and can be spatially staggered and stacked, and is capable of Effective use of the limited space of the wind farm.

In order to solve the above technical problem, the present invention adopts the following technical solution: a high-power wind power generation device comprising at least two fans, a turbo generator and a solar electric heating device, wherein the at least two fans are connected in parallel The gas pipeline is connected to an air inlet of the steam turbine generator, and the solar electric heating device is electrically connected to the gas storage tank to be used of each fan;

Each fan comprises a casing, a blade group, a main shaft, a main gear, at least one compressed gas production device, at least one gas storage tank to be used, and a check valve; the blade group is sleeved on the upper part of the main shaft, and the lower part of the main shaft is rotatably connected to the casing In the body, a main gear is fixed at a lower end of the main shaft, the main gear is meshed with at least one compressed gas production device, and at least one compressed gas production device is connected to at least one gas storage tank through a pipeline, and each of the compressed gas production device and the gas storage tank to be used There is a check valve on the pipe to prevent waiting Reversing back to the compressed gas production device with compressed air in the gas storage tank;

The blade group includes a breeze starting blade and a vertical axis wind turbine blade, and the vertical axis wind turbine blade is sleeved and fixed on the upper part of the main shaft, and the breeze starting blade is respectively sleeved and fixed on the main shaft of the vertical axis of the vertical axis wind turbine blade. The breeze starting blade is a savonius resistance type wind turbine blade, and the function of the breeze starting blade is to drive the main shaft to start rotating when there is only a breeze;

Each of the compressed gas production devices includes a driven gear, a continuously variable transmission, a curved wheel, a crankshaft and a cylinder; a lower end portion of the main shaft is disposed in an upper end surface of the casing, and a main gear, a main gear and a driven gear are rigidly connected at a lower end of the main shaft The meshing gear is connected to the input end of the continuously variable transmission through the coupling to drive the input shaft of the continuously variable transmission to rotate, prevent the driven gear from rotating too high, damage other equipment, and the CVT is rigidly connected with the crank wheel. The output of the step-variable transmission rotates synchronously, which drives the crankshaft to reciprocate along the axial direction of the cylinder. The reciprocating motion of the cylinder generates a large amount of compressed gas. The compressed gas is stored in the gas storage tank through the pipeline, and the turbo generator is passed through the pressure regulating valve. Residual gas is sent back into the cylinder to assist the reciprocating motion of the cylinder piston; the upper end of the cylinder is respectively provided with a first one-way intake valve and a first one-way exhaust valve, and the lower end of the cylinder is respectively provided with a corresponding upper end of the cylinder a two-way intake valve and a second one-way exhaust valve;

The first one-way exhaust valve and the second one-way exhaust valve of each of the compressed gas production device cylinders are connected to the side wall of the gas storage tank to be used through a parallel pipeline, and the pipeline is provided with a check valve;

Each of the gas storage tanks to be used includes a sealed tank body, a carbon fiber heating coil, a piston plate and a butterfly spring; the upper end surface of the tank body is provided with an air outlet, the side wall of the tank body is provided with an air inlet, and the carbon fiber heating coil is provided. In the upper part of the side wall of the sealed tank body, the lower end surface of the piston plate is slidingly fitted to the lower part of the tank body by a butterfly spring, the diameter of the piston plate is matched with the diameter of the inner wall of the tank body, and the end surface of the piston plate is located below the air inlet port; The air outlet of the gas storage tank is connected in parallel with the air inlet of the steam turbine generator through a gas pipeline, and the gas pipeline is provided with a check valve near the air inlet to prevent the pressure of the gas tank to be used in the first fan. When the reduction, the hot compressed air from the other gas storage tanks of the other fans reversely enters the gas storage tanks in the first fan, causing waste of wind energy, and the intake ports of each gas storage tank to be used pass through the parallel pipelines. Separably communicating with the first one-way exhaust valve and the second one-way exhaust valve of the cylinder of the compressed gas production device, the carbon fiber heating coil is electrically connected to the solar electric heating device outside the fan through a wire;

The air outlet of the turbo generator is respectively connected to the first one-way intake valve and the second one-way intake valve of the cylinder of the at least one compressed gas production device through a parallel pipeline, and the parallel pipeline is provided with a pressure regulating valve;

The solar electric heating device comprises a solar cell and a temperature controller. The solar cell is electrically connected to the temperature controller through a wire, and the thermostat is electrically connected to the carbon fiber heating coil in each gas storage tank to be used in each fan through a wire. , solar panels absorb solar energy into electrical energy stored in solar cells Internal backup, when it is necessary to warm the gas storage tank to be used, the temperature controller releases the current through the wire to control the carbon fiber heating coil inside the gas storage tank to be heated by the compressed air in the gas storage tank, and is used in the gas storage tank The compressed air is heated and expanded, and the piston plate is compressed toward the bottom wall of the tank, so that the tank stores more hot compressed air. When the temperature reaches a limit value, the thermostat stops outputting current, and stops the compression in the gas tank. The air is heated, and the temperature inside the gas storage tank reaches a limit value. Under the joint control of the regulating valve and the butterfly spring, the hot compressed air in the gas storage tank to be used enters the gas transmission pipeline and reaches the fan blade of the steam turbine generator. The power is generated, and the remaining gas is sent back to the first one-way intake valve and the second one-way intake valve of the cylinder of the compressed gas production device through the pipeline with the pressure regulating valve, and when the plurality of steam turbine generator sets are generated in parallel, When it is necessary to greatly increase the capacity of a single steam turbine generator set, only relying on multiple compressors to increase the gas capacity cannot meet the requirements of steam turbine generators. At this time, a thermostat, a solar battery, and a carbon fiber are required. A heating coil and a common control with Belleville springs heating the compressed gas, the gas to increase the pressure value inside the tank, the gas turbine generator when the input pressure is increased, the volume increases, in order to meet the requirements of a single high power generation units.

The diameter of the inlet of the steam turbine generator is a reduced diameter structure, and the diameter of the inlet of the inlet away from the end of the turbine generator is larger than the diameter of the tube near the other end of the turbine generator, so that the inlet is close to the steam The gas pressure in the line at the other end of the wheel generator rises, and the gas passing therethrough can be directed to the blades of the turbine generator at a higher speed.

An inspection door is opened on the lower side wall of the casing to facilitate maintenance of the gas storage tank and the compressed gas production device inside the subject.

The beneficial effects of the present invention are as follows:

The advantages of the invention are:

First, the advantage of this device is that it can greatly increase the capacity of a single machine assembly machine, and easily achieve 10 MW or more, which is 10 times of the current installed capacity of mainstream wind turbines; this technology fills the wind power generation at home and abroad. The blank of the machine assembly machine capacity.

Second, the device has stable power generation and stable output voltage, and does not require filtering or rectification.

Third, the device can be spatially staggered and stacked, and the limited space of the wind field can be effectively utilized.

Fourth, the device can not only utilize wind energy, but also utilize natural solar energy to improve the power generation efficiency of the device.

DRAWINGS

Figure 1 is a schematic view showing the overall structure of the present invention;

Figure 2 is a schematic view showing the structure of a compressed gas production apparatus of the present invention;

Fig. 3 is a schematic view showing the structure of a gas storage tank to be used according to the present invention.

detailed description

Referring to Figures 1-3, a high-power wind power generation device includes three fans 1, a turbo generator 2, and a solar electric heating device 3, and the three fans 1 pass through a gas pipeline connected in parallel. Connected with the air inlet 21 of the turbo generator 2, the solar electric heating device 3 is electrically connected to the to-be-used gas storage tank of each fan 1;

Each of the fans 1 includes a casing 11, a blade group 12, a main shaft 13, a main gear 14, seven compressed gas production devices 15, three standby gas storage tanks 16 and a check valve 17; the blade group 12 is sleeved on In the upper part of the main shaft 13, the lower part of the main shaft 13 is rotatably connected in the casing 11, the main gear 14 is fixed at the lower end of the main shaft 13, the main gear 14 is meshed with the seven compressed gas production devices 15, and the seven compressed gas production devices 15 are respectively connected to the three compressed gas devices. The gas storage tank 16 is in communication, and a check valve 17 is arranged on the pipeline between each compressed gas production device 15 and the gas storage tank 16 to be used;

The blade group 12 includes a breeze starting blade 121 and a vertical axis wind turbine blade 122. The vertical axis wind turbine blade 122 is sleeved and fixed on an upper portion of the main shaft 13, and the breeze starting blades 121 are respectively sleeved and fixed on the vertical axis wind turbine blade. 122 on the upper and lower ends of the spindle 13;

Each of the compressed gas production devices 15 includes a driven gear 151, a continuously variable transmission 152, a curved wheel 153, a crankshaft 154, and a cylinder 155. The lower end portion of the main shaft 13 is bored in the upper end surface of the casing 11, and the lower end of the main shaft 13 is rigidly connected. The main gear 14, the main gear 14 meshes with the driven gear 151, the driven gear 151 is connected to the input end of the continuously variable transmission 152 via a coupling, the continuously variable transmission 152 is rigidly coupled to the curved wheel 153, and the crankshaft 154 and the continuously variable transmission 152 The output end synchronously rotates to drive the crankshaft 154 to reciprocate along the axial direction of the cylinder 155; the upper end of the cylinder 155 is respectively provided with a first one-way intake valve 1551 and a first one-way exhaust valve 1552, and the lower end of the cylinder 155 corresponds to the cylinder. The upper end is respectively provided with a second one-way intake valve 1553 and a second one-way exhaust valve 1554;

The first one-way exhaust valve 1552 and the second one-way exhaust valve 1554 of the cylinder 155 of each compressed gas production device 15 are connected to the side wall of the gas storage tank 16 to be used through a parallel pipeline, and the pipeline is provided with Check valve 17;

Each of the gas storage tanks 16 includes a sealed can body 161, a carbon fiber heating coil 162, a piston plate 163, and a butterfly spring 164. The upper end surface of the can body 161 is provided with an air outlet 1611, and the side wall of the can body 161 is provided. The air inlet 1612, the carbon fiber heating coil 162 is disposed on the upper portion of the inner wall of the sealed can body 161, and the lower end surface of the piston plate 163 is slidably fitted to the inner lower portion of the can body 161 by the butterfly spring 164. The diameter of the piston plate 163 matches the diameter of the inner wall of the can body 161. The upper end surface of the piston plate 163 is located below the air inlet 1612; the air outlet 1611 of each of the gas storage tanks 16 to be used is connected to the steam turbine generator 2 through a gas transmission pipe. The air inlet 21 is provided with a check valve 17 at a position close to the air inlet 21, and the air inlet 1612 of each gas storage tank 16 to be used is respectively connected to the cylinder 155 of the compressed gas production device 15 through the parallel pipeline. The first one-way exhaust valve 1552 is in communication with the second one-way exhaust valve 1554, and the carbon fiber heating coil 162 is electrically connected to the solar electric heating device 3 outside the fan 1 through a wire;

The air outlet 22 of the turbo generator 2 is respectively connected to the first one-way intake valve 1551 and the second one-way intake valve 1553 of the cylinders 155 of the seven compressed gas production devices 15 of each of the fans 1 through the parallel pipelines. , the parallel pipeline is provided with a pressure regulating valve 4;

The solar electric heating device 3 includes a solar cell 31 and a thermostat 32. The solar cell 31 is electrically connected to the thermostat 32 through a wire, and the thermostat 32 passes through the wire and each gas storage tank in each fan 1 The carbon fiber heating coils 162 in 16 are electrically connected.

The diameter of the inlet 21 of the turbo generator 2 is a reduced diameter structure, and the diameter of the inlet 21 away from the end of the turbo generator 2 is larger than the diameter of the tube near the other end of the turbo generator 2.

An access door 111 is opened on a lower side wall of the casing 11.

working principle

See Figure 1 - Figure 3,

1, the generation and storage of air pressure

The blade group 12 is composed of a vertical axis wind turbine blade 122 and a breeze starting blade 121. A small amount of wind blows the breeze starting blade 121 and the vertical axis wind turbine blade 122 to drive the main shaft 13 to rotate, and the main shaft 13 drives the main gear 14 to rotate, and the blade group 12 is synchronized with the main gear 14; the main gear 14 meshes with the driven gear 151, and the driven gear 151 is connected to the input end of the continuously variable transmission 152 through a coupling to drive the input shaft rotation of the continuously variable transmission 152; the continuously variable transmission 152 and the curved The wheel 153 is rigidly connected, and the curved wheel 153 rotates synchronously with the output end of the continuously variable transmission 152 to drive the crankshaft 154 to reciprocate axially along the cylinder 155. The reciprocating motion of the cylinder 155 generates a large amount of compressed gas, and the compressed gas is stored in the pipeline through the pipeline. In the tank 16, the residual gas generated after the steam turbine generator 2 generates electricity, the residual gas is input into the cylinder 155 through the pipeline provided with the pressure regulating valve 4, and the boosting cylinder 155 is reciprocated;

2, the storage process is pressurized

The compressed gas is stored in the gas storage tank 16 through the pipeline, and the solar panel generates electric energy to be stored in the solar battery 31 for standby. When it is necessary to warm the gas storage tank 16 to be used, the temperature controller 32 releases current through the wire. The carbon fiber heating coil 162 inside the gas storage tank 16 starts to heat the compressed air. When the temperature reaches a limit value, the temperature controller 32 stops outputting current, stops heating the compressed air in the tank body 161, and the inside of the gas storage tank 16 is used. The temperature reaches a limit value, and the pressure regulating valve 4 is opened. Under the joint control of the pressure regulating valve 4 and the butterfly spring 164, the hot compressed air enters the gas pipeline from the gas storage tank 16 to be used, and then the steam generator 2 is used to generate electricity. ;

3, gas output pressure

Since the gas turbine generator 2 inlet 21 of the gas pipeline is a reduced diameter structure, the gas pressure at the inlet diameter is increased, and the hot compressed air entering the turbine generator 2 is rushed to the steam at a higher speed. The blades of the wheel generator 2 have a better power generation effect.

As described above, a high-power wind power generator of the present invention, the above-described embodiments and drawings are only preferred embodiments of the present invention, and are not limited to the present invention, and are similar to the structures, features, and the like of the present invention. The same shall belong to the scope of protection of the present invention.

Claims

A high-power wind power generation device, characterized in that it comprises at least two fans (1), a turbine generator (2) and a solar electric heating device (3), and the at least two fans (1) pass Parallel gas pipelines are in communication with an air inlet (21) of the turbo generator (2), and the solar electric heating device (3) is electrically connected to a gas storage tank to be used of each fan (1);

Each of the fans (1) includes a casing (11), a blade group (12), a main shaft (13), a main gear (14), at least one compressed gas production device (15), and at least one gas storage tank to be used ( 16) and the check valve (17); the blade group (12) is sleeved on the upper part of the main shaft (13), the lower part of the main shaft (13) is rotatably connected in the casing (11), and the main gear (14) is fixed at the lower end of the main shaft (13). The main gear (14) is meshed with at least one compressed gas production device (15), and at least one compressed gas production device (15) is respectively connected to at least one gas storage tank (16) to be used via a pipe, each compressed gas production device (15) a check valve (17) is arranged on the pipeline between the gas storage tank (16) to be used;

The blade set (12) includes a breeze starting blade (121) and a vertical axis wind turbine blade (122), and the vertical axis wind turbine blade (122) is sleeved and fixed on an upper portion of the main shaft (13), and the breeze starting blade (121) ) respectively arranging a main shaft (13) fixed to the upper and lower ends of the vertical axis wind turbine blade (122);

Each of the compressed gas production devices (15) includes a driven gear (151), a continuously variable transmission (152), a curved wheel (153), a crankshaft (154), and a cylinder (155); the lower end of the main shaft (13) is pierced In the upper end surface of the casing (11), the main gear (14) is rigidly connected to the lower end of the main shaft (13), the main gear (14) meshes with the driven gear (151), the driven gear (151) and the continuously variable transmission ( 152) The input end is connected by a coupling, the continuously variable transmission (152) is rigidly connected with the curved wheel (153), and the crankshaft (154) rotates synchronously with the output end of the continuously variable transmission (152) to drive the crankshaft (154) along the cylinder (155). The axial reciprocating motion; the upper end of the cylinder (155) is respectively provided with a first one-way intake valve (1551) and a first one-way exhaust valve (1552), and the lower end of the cylinder (155) corresponds to the upper end of the cylinder respectively a second one-way intake valve (1553) and a second one-way exhaust valve (1554);

The first one-way exhaust valve (1552) and the second one-way exhaust valve (1554) of each of the compressed gas production device (15) cylinders (155) are connected to the gas storage tank to be used through the parallel pipeline (16). On the side wall, the pipeline is provided with a check valve (17);

Each of the gas storage tanks (16) to be used includes a sealed tank body (161), a carbon fiber heating coil (162), a piston plate (163), and a butterfly spring (164); the upper end surface of the tank body (161) is provided There is an air outlet (1611), the side wall of the tank body (161) is provided with an air inlet (1612), the carbon fiber heating coil (162) is arranged on the upper part of the inner side wall of the sealed tank body (161), and the lower end surface of the piston plate (163) passes through the butterfly. Shaped spring (164) sliding Cooperating with the inner lower part of the tank body (161), the diameter of the piston plate (163) is matched with the diameter of the inner wall of the tank body (161), and the upper end surface of the piston plate (163) is located below the air inlet port (1612); The air outlet (1611) of the gas tank (16) is connected in parallel to the air inlet (21) of the turbine generator (2) through a gas pipeline, and the gas pipeline is provided with a check valve near the air inlet (21). (17), the intake port (1612) of each of the gas storage tanks (16) to be used is respectively connected to the first one-way exhaust valve (1552) of the cylinder (155) of the compressed gas production device (15) through a parallel line and a second one-way exhaust valve (1554) is in communication, and the carbon fiber heating coil (162) is electrically connected to the solar electric heating device (3) outside the fan (1) through a wire;

The air outlet (22) of the turbo generator (2) passes through the parallel pipeline and the first one-way intake valve of at least one compressed gas production device (15) cylinder (155) of at least two fans (1) (1551) is connected to the second one-way intake valve (1553), and the parallel pipeline is provided with a pressure regulating valve (4);

The solar electric heating device (3) comprises a solar cell (31) and a thermostat (32), the solar cell (31) is electrically connected to the thermostat (32) through a wire, and the thermostat (32) passes through the wire and each The carbon fiber heating coils (162) in each of the gas storage tanks (16) to be used in the turbine (1) are electrically connected.
The high-power wind power generation device according to claim 1, wherein the diameter of the inlet (21) of the turbo generator (2) is a reduced diameter structure, and the air inlet (21) is far away. The diameter of one end of the turbo generator (2) is larger than the diameter of the tube near the other end of the turbo generator (2).
A high-power wind power generator according to claim 1, characterized in that an access door (111) is opened on a lower side wall of the casing (11).