CN205990987U - A kind of energy storage type wind electricity generating system - Google Patents

Abstract

This utility model provides a kind of energy storage type wind electricity generating system, and described energy storage type wind electricity generating system includes wind turbine, compressor, gas storage equipment, air motor, electromotor and pressure regulator.This utility model is compressed air energy storage using wind turbine direct drive air compressor it is not necessary to carry out reconvert after electric energy conversion to become compressed air, energy conversion chain is short, efficiency high.Air accumulator is set directly in the base of wind turbine or below support by this utility model, has both facilitated compressed-air-storing, shortens energy conversion chain again.Cooler of the present utility model is when cooling down to compressed air, it is directly used in and the water in delivery device is heated, both achieved the cooling of compressed air, achieve the supply of daily hot water again, while energy saving, it is made that tremendous contribution for making the life better, therefore, be more beneficial for the popularization and application of wind power plant.

Description

An energy storage type wind energy generating device

technical field

The utility model relates to the field of new energy utilization, in particular to an energy storage type wind energy generating device.

Background technique

With the expansion of the scope of human activities, the demand for electricity in marginal areas (islands, alpine material villages, beauty salons, frontier stations, etc.) has gradually increased. Traditional centralized energy systems, such as large-scale power grids, must pass through transmission and distribution lines to deliver the produced electricity to users. The cost is getting higher and higher, and the cost of long-distance power transmission will account for more than half of the total cost of power supply.

In response to this problem, a distributed energy system is proposed, which is relative to the traditional centralized energy system. The distributed energy system is mainly based on traditional fossil energy (diesel, gasoline, natural gas, etc.), supplemented by renewable energy (solar energy, wind energy, biogas energy), and uses all available energy to achieve energy cascade utilization that directly meets user needs . Distributed energy systems are a powerful complement to centralized energy systems, especially for isolated areas.

There are many kinds of power sources for distributed energy systems, mainly including internal combustion engines, gas turbines, fuel cells, photovoltaic power generation, wind power generation, tidal power generation, etc. As a small and medium-sized power generation equipment, the internal combustion generator set has the characteristics of low investment, reliable operation, good mobility, small footprint, and strong environmental suitability. It is currently one of the most widely used power sources for distributed energy systems. In addition to being directly used for power generation or water desalination, internal combustion engines are also widely used in distributed heat, power, and cooling cogeneration systems. While generating electricity, the waste heat of the cooling water of the internal combustion engine can be heated to generate domestic hot water, and the exhaust waste heat can be recovered by waste heat boilers. Recover saturated steam or superheated steam, and drive the steam turbine to do work.

Natural wind is random, intermittent and seasonal, and it is difficult to predict the output power of wind generators to ensure the quality of power supply. In traditional wind-diesel combined power generation systems, the proportion of wind power generation basically does not exceed 30% of the overall power generation. When wind power When the power generation exceeds the actual demand, it is necessary to use a power dissipation device to ensure that the actual power generation matches the power consumption, resulting in the waste of wind energy.

Therefore, if a power generation device that can both utilize wind energy and store wind energy can be developed, it will greatly promote the development and utilization of wind energy, make wind energy available to more regions and more people, reduce environmental pollution, and promote new energy technologies development of.

Utility model content

In view of the above problems, the utility model proposes a power generation device capable of storing wind energy. With this power generation device, the wind energy can be fully utilized without being affected by the instability of wind energy.

Specifically, the utility model provides an energy storage type wind energy generating device, which is characterized in that the energy storage type wind energy generating device includes a wind turbine, a compressor, a gas storage device, an air motor, a generator and a pressure regulator ,

The wind turbine includes an impeller bracket, an impeller shaft and an impeller, the impeller is mounted on the impeller bracket through the impeller shaft, and can rotate around the impeller shaft,

The compressor includes a drive shaft, a piston and a cylinder, the impeller shaft is connected to the drive shaft of the compressor to drive the drive shaft, the drive shaft can drive the piston to reciprocate up and down, and then The air in the cylinder is compressed and delivered to the air storage device;

The air storage device includes an air inlet and an air outlet, the air inlet is directly or indirectly connected to the cylinder for receiving compressed air, and the air outlet is connected to the air motor;

A pressure regulator is installed on the pneumatic motor, and the pressure regulator is arranged on the connecting pipeline between the pneumatic generator and the gas storage device;

The pneumatic motor has blades and a pneumatic rotating shaft, and the pneumatic rotating shaft is connected with the driving shaft of the generator to drive the generator to generate electricity.

In a preferred implementation manner, the energy storage type wind energy generating device further includes a cooler, and the cooler is arranged between the compressor and the delivery pipeline of the gas storage device.

In another preferred implementation manner, the energy storage type wind energy generating device further includes a charging device and a storage battery, and the charging device is connected to the generator to charge the storage battery.

In another preferred implementation manner, the gas storage device includes four gas storage tanks, the first gas storage tank and the second gas storage tank are connected in series, the third gas storage tank and the fourth gas storage tank are connected in series, and each other The two sets of gas storage tanks connected in series are connected in parallel.

In another preferred implementation manner, the number of the wind turbines is 3, 4 or 5.

In another preferred implementation manner, the energy storage type wind energy generating device further includes a hot water delivery device, the hot water delivery device communicates with the cooler through a pipeline, and the cooler transfers the hot water The water delivered by the device is heated.

Beneficial effect:

In terms of wind energy-compressed air energy storage systems, previous studies mainly used wind turbines to generate electric energy and drive air compressors. The energy is converted from wind energy to electric energy and then to compressed air potential energy. The energy conversion chain is long and the efficiency is low.

In contrast, the utility model utilizes the wind turbine to directly drive the air compressor for compressed air energy storage, without converting electric energy into compressed air, which has a short energy conversion chain and high efficiency.

In the utility model, the air storage tank is directly arranged in the base of the wind turbine or under the bracket, which not only facilitates the storage of compressed air, but also shortens the energy conversion chain.

The cooler of the utility model is directly used to heat the water in the hot water delivery device, which not only realizes cooling, but also realizes the supply of daily hot water, saves energy, and makes a great contribution to improving life. Therefore, It is more conducive to the popularization and application of wind power generation equipment.

Description of drawings

Fig. 1 is a frame schematic diagram of an energy storage type wind energy generating device according to an embodiment of the present invention;

detailed description

As shown in FIG. 1 , the energy storage wind energy generating device in this embodiment includes a wind turbine 1 , an air compressor 2 , an air storage device 3 , an air motor 4 , a generator 5 and a pressure regulator 6 .

The wind turbine 1 of the present utility model adopts a conventional turbine, so only its general structure is introduced here. It mainly includes an impeller support, an impeller shaft and an impeller, and the impeller is mounted on the impeller support through the impeller shaft and can rotate around the impeller shaft.

Similarly, the compressor of the present utility model also adopts commercially available conventional compressors. The compressor includes a drive shaft, piston and cylinder.

However, the utility model combines the wind turbine 1 and the air compressor 2 ingeniously together for use. Specifically, the utility model places the air storage tank and the air compressor under the base or support of the wind turbine 1, and connects the impeller shaft of the wind turbine 1 with the drive shaft of the compressor 2 through transmission. For example, the two can be connected directly, or the two can be connected through hinges, gears or universal joints, so that the wind turbine 1 can directly drive the air compressor 2 without the need for long-distance transmission of power or energy .

Air compressor 1 adopts a piston compressor, and its driving shaft drives the piston to reciprocate up and down, thereby compressing the air in the cylinder and transporting it to the air storage device.

In this embodiment, the gas storage device 3 includes four gas storage tanks, the first gas storage tank and the second gas storage tank are connected in series, the third gas storage tank and the fourth gas storage tank are connected in series, and the two groups connected in series The gas storage tanks are connected in parallel. The advantage of this is that the compressed air can be compressed step by step during the process of entering the gas storage tank, avoiding safety hazards caused by excessive compression.

The gas storage device 3 includes an air inlet and an air outlet, the air inlet is directly or indirectly connected to the cylinder to receive compressed air, and the air outlet is connected to the air motor; a pressure regulator is installed on the air motor 4, and the pressure regulator is arranged on the air generator 4 and the connecting pipe of the gas storage device 3; the air motor 4 has blades and an aerodynamic shaft, and the aerodynamic shaft is connected with the drive shaft of the generator 5 to drive the generator to generate electricity.

The energy storage type wind power generation device also includes a cooler, which is arranged between the compressor 2 and the delivery pipeline of the gas storage device 3 .

Considering that in individual cases, there may be a long period of windy weather, but the wind energy consumption is insufficient, in order to prevent the gas storage equipment from being unable to continue to store after it is full, the energy storage type wind energy generation device also includes a charging device and a storage battery. The charging device is connected with the generator to charge the storage battery. The charging device can convert the alternating current generated by the generator into direct current to charge the storage battery. Of course, the structure including the storage battery can also have another application, that is, the power generation device can be used to charge new energy vehicles. When a new energy vehicle is connected to the charging device, the power generation device first ensures that the battery of the new energy vehicle The charging, and then, the gas storage of the gas storage device is carried out.

Although, the above is described with 4 gas storage tanks as an example, it should be noted that the number of gas storage tanks is not limited to 4. Furthermore, the number of wind turbines may be one or more, such as 3, 4 or 5.

The energy storage type wind energy generating device of the present utility model also includes a hot water delivery device, which is connected with a cooler. The delivery pipeline of the hot water delivery device communicates with the cooling pipeline of the cooler, so that the cold water in the hot water delivery device can be heated.

The shapes of each component in the drawings are schematic, and it is not ruled out that there are some differences from their real shapes. The drawings are only used to illustrate the principles of the utility model, and are not intended to limit the utility model.

Although the principle of the utility model has been described in detail above in conjunction with the preferred embodiments of the utility model, those skilled in the art should understand that the above-mentioned embodiment is only an explanation of the schematic implementation of the utility model, and is not a limitation of the scope of the present invention. limited. The details in the embodiments do not constitute limitations on the scope of the present utility model. Without departing from the spirit and scope of the present utility model, any obvious changes based on the technical solutions of the present utility model such as equivalent transformations and simple replacements shall fall within the scope of the present utility model. Within the protection scope of the utility model.

Claims (6)

1. a kind of energy storage type wind electricity generating system it is characterised in that described energy storage type wind electricity generating system include wind turbine, Compressor, gas storage equipment, air motor, electromotor and pressure regulator,

Described wind turbine includes impeller bracket, impeller shaft and impeller, and described impeller is installed by described impeller shaft In described impeller bracket, can rotate around described impeller shaft,

Described compressor includes drive shaft, piston and cylinder, and described impeller shaft is connected with the drive shaft of described compressor use To drive described drive shaft, described drive shaft can drive described piston to pump, and then in described cylinder Air is compressed and is delivered to described gas storage equipment；

Described gas storage equipment includes air intake and gas outlet, and described air intake is directly or indirectly connected to receive with described cylinder Compressed air, described gas outlet is connected with described air motor；

On described air motor, pressure regulator is installed, described pressure regulator be arranged on described gas driven generator with described On the connecting pipe of gas storage equipment；

Described air motor has blade and pneumatic rotating shaft, and described pneumatic rotating shaft is connected with the drive shaft of described electromotor, In order to drive described electrical power generators.

2. energy storage type wind electricity generating system according to claim 1 is it is characterised in that described energy storage type wind electricity generating system Also include cooler, described cooler is arranged between described compressor and the conveyance conduit of described caisson.

3. energy storage type wind electricity generating system according to claim 1 is it is characterised in that described energy storage type wind electricity generating system Also include charging device and accumulator, described charging device is connected with described electromotor, in order to charge to described accumulator.

4. energy storage type wind electricity generating system according to claim 1 is it is characterised in that described gas storage equipment includes four storages Gas tank, the first air accumulator is one another in series with the second air accumulator, and the 3rd air accumulator and the 4th air accumulator are one another in series, and are one another in series Two groups of air accumulators are connected in parallel.

5. energy storage type wind electricity generating system according to claim 1 is it is characterised in that the number of described wind turbine is 3,4 or 5.

6. energy storage type wind electricity generating system according to claim 2 is it is characterised in that described energy storage type wind electricity generating system Also include delivery device, described delivery device is connected by pipeline with described cooler, and described cooler is to institute The water stating the conveying of delivery device is heated.