TWI668370B - Wind power driven air compressing device - Google Patents

Abstract

A wind compressed air device for solving the problem of unstable power output of a conventional wind power generator. The utility model comprises: a fan unit, wherein one fan end is connected to a plurality of fan blades, the other end of the main shaft is connected to a generator; a casing is located on the leeward side of the plurality of fan blades, the casing has a a compression chamber surrounds the main shaft, and a gas storage chamber surrounds the outer side of the compression chamber, the compression chamber has an air inlet and an air pressure passage, the air inlet is directed to the plurality of fan blades, and the pressure channel is located at the compression a chamber opposite to the other end of the inlet, the pressure passage communicates with the gas storage chamber; and an axial flow vane group, the axial flow vane group is located in the compression chamber, the axial flow vane group is coupled to the main shaft and the main shaft Is the center axis of rotation.

Description

Wind compressed air device

The present invention relates to a renewable energy storage control technology, and more particularly to a wind compressed air device that stores an oversupply of energy for standby.

Renewable energy is derived from nature and inexhaustible energy. Promoting the use of renewable energy can solve the problem of fossil energy shortage and carbon emissions. It can also reduce the dependence on nuclear energy to reduce the possibility of nuclear or nuclear pollution. Therefore, the promotion and application of renewable energy is valued by governments, and the capacity of global renewable energy is increasing year by year, and the technical cost of renewable energy continues to decrease.

However, power systems that use renewable energy, such as wind power and solar power, are subject to changes in meteorological changes, resulting in large changes in the amount of electricity supplied. Thus, based on the demand for stable and sustainable development of power grid management, renewable energy power generation devices that cannot provide stable power output have defects that cannot be ignored.

In view of this, the conventional renewable energy power generation device does still have to be improved.

In order to solve the above problems, it is an object of the present invention to provide a wind compressed air device that can be used to regulate a power supply network and store energy backup.

A second object of the present invention is to provide a wind compressed air device which can improve compression efficiency by directly applying fan power to compressed air.

It is still another object of the present invention to provide a wind compressed air device that can use the energy of a high pressure gas at any time without being affected by weather, time or location.

It is still another object of the present invention to provide a wind compressed air device that can store heat energy reuse of a gas during compression.

The wind compressed air device of the present invention comprises: a fan group, wherein one fan end is connected to a plurality of fan blades, the other end of the main shaft is connected to a generator; and a casing is located on the leeward of the plurality of fan blades The housing has a compression chamber surrounding the main shaft, and a gas storage chamber surrounds the outer side of the compression chamber. The compression chamber has an air inlet and an air passage, and the air inlet faces the plurality of fan blades. The pressure passage is located at the other end of the compression chamber opposite to the intake port, the pressurizing passage is connected to the gas storage chamber; and an axial flow vane group, the axial flow vane group is located in the compression chamber, and the axial flow vane group is combined The main axis is the main axis of rotation.

Accordingly, the wind compressed air device of the present invention drives the axial flow blade group to operate by compressed air storage by ambient wind power, and can convert the wind power and excess wind power generation into a high pressure gas to store the power supply network. The efficiency of the road and energy storage can stabilize the renewable energy power generation system and expand the application range of renewable energy.

Wherein, the fan unit has a gear set and a high speed shaft, and the main shaft is connected to the generator through the gear set, and the gear set is connected to the high speed shaft. In this way, the gear ratio of the high gear ratio can drive the generator and the high speed shaft reaches a number of times the rotation speed of the main shaft, which has the effect of improving the power conversion efficiency of the generator.

Wherein, the housing has a motor chamber for accommodating the generator and the gear set. In this way, the generator and the driving device such as the gear set can be isolated from the compression chamber, and have the effect of avoiding obstructing air flow to improve compression efficiency.

Wherein, the compression chamber is divided into a first compression chamber and a second compression chamber, the air inlet is located in the first compression chamber, and the pressure channel is located in the second compression chamber, and the first compression chamber is used for receiving The main shaft, the second compression chamber is for accommodating the high speed shaft. In this way, the compression chamber can perform air compression in stages, which has the effect of increasing the gas pressure to increase the stored energy.

The invention further includes a centrifugal impeller group, the centrifugal impeller group being located in the second compression chamber, the centrifugal impeller group being coupled to the high speed shaft, the centrifugal impeller group and the high speed shaft having the main shaft as a central axis of rotation. In this way, the centrifugal impeller group can compress a larger amount of gas by high-speed rotation, generate more pressure, and has the effect of increasing stored energy.

The invention further comprises a heat exchanger surrounding the outer surface of the gas storage chamber, the coolant in the heat exchanger circulating between a heat storage tank and the heat exchanger. In this way, the coolant can absorb the heat energy generated by the gas during the compression process and store it in the heat storage tank, which has the effect of storing heat energy for recycling.

The invention further includes a high pressure storage tank that communicates with the gas storage chamber. In this way, the high-pressure storage tank can store high-pressure gas and maintain pressure, and has the effect of increasing the convenience of use of the high-pressure gas.

Wherein, there is a regulating valve between the gas storage chamber and the high pressure storage tank. Thus, when the accumulated amount or pressure of the gas storage chamber reaches a critical point, the regulating valve can be operated to transfer high-pressure gas, which has the functions of safe storage and convenient use of high-pressure gas.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

Referring to FIG. 1 , a preferred embodiment of the wind compressed air device of the present invention comprises a fan unit 1 , a casing 2 , an axial flow vane group 3 and a centrifugal impeller group 4 . The body 2 surrounds the wind-blown portion 1, the axial flow blade group 3 and the centrifugal impeller group 4, and the axial flow blade group 3 and the centrifugal impeller group 4 are connected to the fan unit 1 and are respectively operated.

The fan unit 1 is connected to a plurality of fan blades 12 at one end of a main shaft 11. The plurality of fan blades 12 are preferably disposed at one end of the main shaft 11 at the same angle of attack. Thus, the fan unit 1 may have The wind energy is efficiently converted into rotating mechanical energy; the other end of the main shaft 11 can be connected to a generator 13, and the fan unit 1 can also have a gear set 14 and a high speed shaft 15 through which the main shaft 11 can pass. The group 14 is connected to the generator 13, and the gear set 14 is connected to the high speed shaft 15. The gear set 14 can increase the gear ratio so that the generator 13 and the high speed shaft 15 can be several times larger than the main shaft 11. The rotational speed is used to increase the efficiency of conversion of mechanical energy into electrical energy, and the electrical energy generated by the generator 13 can be used to assist in driving the gear set 14 or the supply grid.

The housing 2 is located on the leeward side of the plurality of fan blades 12, and the inner space of the housing 2 is divided into a compression chamber 21 surrounding the main shaft 11, and a gas storage chamber 22 surrounding the outer side of the compression chamber 21, The compression chamber 21 has an air inlet 23, and the air inlet 23 preferably faces the plurality of fan blades 12, so that the airflow flowing through the plurality of fan blades 12 can enter the casing 2 through the air inlet 23; Moreover, the compression chamber 21 has a pressure passage 24 with respect to the other end of the air inlet 23, and the pressure passage 24 communicates with the air chamber 22, and the pressure passage 24 is preferably provided by the housing 2. The central axis extends to the outer wall; as shown in FIG. 2, the gas storage chamber 22 can also be connected to a high pressure storage tank T, and the pressurized high pressure gas can be stored in the high pressure storage tank T for use at any time.

The compression chamber 21 can also be divided into a first compression chamber 21a and a second compression chamber 21b, wherein the air inlet 23 is located in the first compression chamber 21a, and the pressure passage 24 is located in the second compression chamber. 21b, in addition, the first compression chamber 21a can accommodate the main shaft 11, the second compression chamber 21b can accommodate the high speed shaft 15; the housing 2 can also have a motor chamber 25, the motor chamber 25 Preferably, the second compression chamber 21b is adjacent to the second, and the motor chamber 25 preferably has no gas flow between the compression chamber 21 and the gas storage chamber 22. The motor chamber 25 can accommodate the generator 13 and the gear set 14.

The axial flow vane group 3 is located in the first compression chamber 21a, and the axial flow vane group 3 is coupled to the main shaft 11 of the blower unit 1 and the main shaft 11 is a central axis of rotation, so that the axial flow vane group 3 can be The plurality of fan blades 12 and the main shaft 11 are synchronously operated in a coaxial manner, and when the axial flow vane group 3 is operated, ambient air can be extracted to enter the first compression chamber 21a through the intake port 23.

The centrifugal impeller group 4 is located in the second compression chamber 21b, and the centrifugal impeller group 4 is coupled to the high speed shaft 15 of the fan unit 1, and the centrifugal impeller group 4 and the high speed shaft 15 are based on the main shaft 11 as a central axis of rotation. The centrifugal impeller group 4 is operated coaxially at a number of times the number of revolutions of the axial flow vane group 3. When the centrifugal impeller group 4 rotates the gas at a high speed, the gas can be sucked into the second compression chamber by centrifugal force. At the periphery of 21b, the gas flows in the radial direction into the gas storage chamber 22, and at the same time, a vacuum zone is formed at the position of the centrifugal impeller group 4, and the initially compressed gas of the first compression chamber 21a can be sucked.

The wind compressed air device of the present invention may further have a heat exchanger 5, which may be a cooling water tank or a heat exchange tube, surrounding the heat exchanger 5 on the outer surface of the gas storage chamber 22, The coolant is introduced into the heat exchanger 5 to absorb the heat energy generated by the gas during the compression process, and then the temperature-increased coolant is introduced into a heat storage tank R to circulate the coolant to the heat exchanger 5 and the heat storage tank R. Between, it can effectively store heat energy for recycling.

According to the foregoing structure, the wind compressed air device of the present invention can drive the generator 13 to generate electric energy by converting the wind power into the mechanical energy of the rotation of the main shaft 11, and can simultaneously drive the axial flow vane group 3 and the centrifugal impeller. The group 4 is operated. In addition, since the air inlet 23 of the casing 2 follows the plurality of wind turbine blades 12 and faces the windward surface, air can smoothly enter the casing 2, and the axial flow blade group 3 is further And the centrifugal impeller group 4 guides the air into the first compression chamber 21a, the second compression chamber 21b, and the gas storage chamber 22 in sequence.

After the ambient air enters the first compression chamber 21a, the axial flow vane group 3 operates to drive the air to be concentrated and compressed toward the rear half of the first compression chamber 21a to form a denser compressed gas when located in the first compression. When the gas pressure in the rear half of the chamber 21a is greater than the gas pressure in the front half of the second compression chamber 21b, the compressed gas system enters the second compression chamber 21b.

After the compressed gas enters the second compression chamber 21b, the centrifugal impeller group 4 rotates at a multiple of the rotation speed of the axial flow blade group 3, and drives the compressed gas to flow in the radial direction of the rotating shaft to concentrate the compressed gas into the In the pressurizing passage, the compressed gas can be further compressed into a higher pressure high pressure gas, and enters the gas storage chamber 22, so that the pressure of the high pressure gas is preserved, and the gas in the second compression chamber 21b continues to concentrate toward the periphery. Reducing the air density at the center portion causes a pressure difference between the first compression chamber 21a and the second compression chamber 21b, and the second compression chamber 21b can continuously replenish the compressed gas from the first compression chamber 21a.

Preferably, a regulating valve is disposed between the gas storage chamber 22 and the high-pressure storage tank T. When the high-pressure gas of the gas storage chamber 22 accumulates to a certain amount or the pressure reaches a critical value, the regulating valve can be operated by The high pressure gas is transferred from the gas storage chamber 22 to the high pressure storage tank T. The high pressure storage tank T can also have an outlet through which the high pressure gas can be dispensed into the cylinder for convenient handling and utilization, or The high-pressure gas is directly guided by the output port to drive the turbine generator to generate electricity, or, as shown in Fig. 2, the high-pressure air can also be used as the power source of the heat pump P, and the heat energy supplied by the heat pump P can be used for heating the house, and The waste heat can be recovered by the heat storage tank R, and the heat storage tank R can serve as a heat absorption source of the heat pump P, so that the heat pump P can still supply heat with high energy efficiency in a cold environment.

In addition, when the wind energy is sufficient and the electric energy generated by the conversion of the generator 13 is excessive, the excess electric power can be used to drive the centrifugal impeller group 4 to accelerate the operation to increase the cumulative efficiency of the high-pressure gas; when the wind is degraded and the electric energy is insufficient. At the time, the stored high pressure gas can be used to generate electricity. In this way, by storing the electrical energy that cannot be used immediately in the form of high-pressure gas, energy waste can be avoided and the power supply network can be stabilized.

In summary, the wind compressed air device of the present invention drives the axial flow blade group and the centrifugal impeller group to operate compressed air storage by ambient wind power, and can convert wind power and excess wind power generation into high pressure gas. Form storage, to adjust the power supply network and store energy, can stabilize the renewable energy power generation system and expand the application range of renewable energy.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

1‧‧‧Fan unit

11‧‧‧ Spindle

12‧‧‧Wind blades

13‧‧‧Generator

14‧‧‧ Gear Set

15‧‧‧High speed shaft

2‧‧‧Shell

21‧‧‧Compression room

21a‧‧‧First compression chamber

21b‧‧‧Second compression chamber

22‧‧‧ gas storage room

23‧‧‧air inlet

24‧‧‧ Pressurized road

25‧‧‧Motor room

3‧‧‧Axial flow blade group

4‧‧‧ centrifugal impeller group

5‧‧‧ heat exchanger

T‧‧‧ high pressure storage tank

R‧‧‧ Thermal storage pool

P‧‧‧ heat pump

[FIG. 1] A combined sectional view of a preferred embodiment of the present invention. [Fig. 2] A schematic view of the application of a preferred embodiment of the present invention.

Claims (8)

A wind compressed air device comprises: a fan group, wherein one fan end is connected to a plurality of fan blades, and the other end of the main shaft is connected to a generator; a casing, the casing is located on the leeward side of the plurality of fan blades, The housing has a compression chamber surrounding the main shaft, and a gas storage chamber surrounds the outer side of the compression chamber, the compression chamber has an air inlet and a pressure passage, the air inlet facing the plurality of fan blades, the addition a pressure passage is located at the other end of the compression chamber opposite to the intake port, the pressurizing passage is connected to the gas storage chamber; and an axial flow vane group, the axial flow vane group is located in the compression chamber, and the axial flow vane group is coupled to the The main shaft is the central axis of rotation. The wind compressed air device of claim 1, wherein the wind turbine unit has a gear set and a high speed shaft, the main shaft is coupled to the generator through the gear set, and the gear set is coupled to the high speed shaft. The wind compressed air device of claim 1, wherein the housing has a motor chamber for housing the generator and the gear set. The wind compressed air device of claim 2, wherein the compression chamber is divided into a first compression chamber and a second compression chamber, the air inlet is located in the first compression chamber, and the pressure channel is located The second compression chamber is configured to receive the main shaft, and the second compression chamber is configured to receive the high speed shaft. The wind compressed air device of claim 4, further comprising a centrifugal impeller group, the centrifugal impeller group being located in the second compression chamber, the centrifugal impeller group being coupled to the high speed shaft, the centrifugal impeller group and the high speed The axis is the central axis of rotation with the spindle. The wind compressed air device according to any one of claims 1 to 5, further comprising a heat exchanger surrounding the outer surface of the gas storage chamber, the coolant in the heat exchanger Circulating between a thermal storage tank and the heat exchanger. The wind compressed air device of any one of claims 1 to 5, further comprising a high pressure storage tank connected to the gas storage chamber. The wind compressed air device of claim 7, wherein the gas storage chamber and the high pressure storage tank have a regulating valve.