JP2002054553A - Energy recovering system by utilization of air exhausted from plant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a private power generator capable of recovering and reusing an energy from the air merely exhausted from a plant by utilizing the exhausted air from an exhaust fan installed in the plant. SOLUTION: In this private power generator, the exhaust air from an exhaust fan installed in the plant is led, a turbine rotated by the exhaust air is installed, and the rotating force of the turbine is transmitted to a generator to rotate it for power generation. Thus an energy of the exhaust air can be recovered electrically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for generating power in-house using exhaust air from a fan for exhausting air for ventilation or the like installed in a factory, and recovering the energy of the exhaust air. It relates to an energy recovery system.

[0002]

2. Description of the Related Art Conventionally, in a production factory, a large number of production facilities are provided in the factory, and an exhaust fan for dust collection and ventilation is installed. Further, when a painting line or the like is installed in a factory, a large amount of air needs to be exchanged, so that a plurality of exhaust fans may be installed in some cases. As the exhaust fan, for example, a fan having a diameter of about 400φ is used.
A motor of about 2Kw is used. The exhaust air from the exhaust fan is discharged directly to the outside or discharged outside through a duct.

[0003] As described above, in the above-mentioned conventional production plant, the exhaust air from the exhaust fan for ventilating or the like is merely exhausted outside as it is, and this exhaust air is not used effectively. Was. In view of the above, the present invention uses an exhaust air from an exhaust fan installed in a factory to generate power in-house, and recovers and reuses energy from the exhaust air that has just been exhausted. It aims to provide an energy recovery system using wind.

[0004]

Means for Solving the Problems and Effects of the Invention In order to achieve the above object, an energy recovery system using factory exhaust air according to the present invention guides exhaust air of an exhaust fan installed in a factory, and By providing a rotating windmill, transmitting the rotating force of the windmill to a generator, and having a self-generating device that rotates the generator to generate electric power, it is possible to electrically collect energy of exhaust air. Features.

[0005] In the energy recovery system configured as described above,
The windmill is rotated by the exhaust air, and the generator can be driven by the rotational force, so that electric power can be generated by the private power generator. Therefore, conventionally, it is possible to electrically recover and effectively use the energy of the exhaust air by using the exhaust air that has just been exhausted. Since the exhaust fan is operated almost constantly during operation of the factory, the exhaust air can be obtained stably, so the power output from the energy recovery system is also constant,
This can also be used effectively.

[0006] The energy recovery system according to claim 1 may be one in which a voltage control device, a frequency control device, and a power storage device are electrically connected. In this configuration, the output power can be controlled to a desired voltage and current, and the power can be stored by the power storage device, so that more stable power can be supplied. It is possible to take out the stored power.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a main part of an energy recovery system according to an embodiment of the present invention, and FIG. 2 is a configuration diagram of the energy recovery system. The energy recovery system 1 according to this embodiment includes a spiral duct 10 that guides exhaust air from an exhaust fan F, and a private power generator 20 connected to the spiral duct 10. Rectifier 3
0, a charger 31, a power storage device 32, a current pump 33, and an inverter device 34 are electrically connected.

The spiral duct 10 is formed to have a diameter substantially equal to the diameter of the exhaust fan F in order to efficiently guide the exhaust air from the exhaust fan F, and can be guided as linearly as possible. It is desirable to configure in form. The in-house power generator 20 includes a windmill device 21 connected to the spiral duct 10 and a generator 22 connected to and driven by the windmill device 21. Can be driven.

In this embodiment, the wind turbine device 21 has a fan in the main body. The generator 22 uses a known generator, and can generate electric power by rotating the wind turbine device 21.

[0010]

Embodiments of the present invention are as follows. The exhaust fan F is driven by a 2.2Kw motor.
A fan with a diameter of 400 mm is operated at an optimum rotation speed for ventilation by inverter driving. A spiral duct 10 having a length of 400 mmφ and a length of 4 m is arranged, and the wind turbine device 2 of the private power generator 20 is provided at the tip thereof.
1 is connected.

The wind turbine device 21 has a 360 mm diameter fan inside a 600 mm diameter main body. A drive pulley is mounted on the fan shaft, and the drive pulley of the generator 22 can be rotated via the conduction belt 23. You can do it. The generator 22 has a known output of 3 KVA / 360.
The thing of 0 rpm was used. In the above configuration, when exhaust air passes through the spiral duct 10 at an average wind speed of 10.6 m / sec, the windmill device 21 rotates at 450 rpm,
The number of revolutions of the generator 22 was 1,823 rpm.

When measured under the above conditions, an output of 14 V was obtained from the generator 22. This is boosted by a transformer 2
Boost to 00V, rectifier 30, charger 31, power storage device 3
2. Voltage control and frequency control were performed by the current pump 33 and the inverter device 34, and the voltage could be taken out as a constant voltage. This power was applied to a 200 V, 60 Hz, 800 W three-phase heater to demonstrate that the output was stable. By installing a plurality of the energy recovery systems 1 in accordance with the number of exhaust fans, the generated power can be stably obtained, and the energy recovery system 1 is connected to a commercial power supply via a switching device or a synthesis device. Thereby, it can be effectively used as electric power in the factory.

As described above, the exhaust air from the exhaust fan F can always maintain a constant wind power and can be used as wind power with little fluctuation, so that the electric power from the energy recovery system 1 can be used. It can output stably. In addition, the power generation device 22 includes:
Furthermore, it is possible to freely change the wind direction of the discharge wind by providing a discharge duct. In another embodiment, the present invention can be used as a battery mounted on a battery-driven trolley moving in a factory or as power for charging a battery-powered forklift. In this case, the power generated by using the system can be directly supplied by performing voltage control and frequency control,
Devices subsequent to the power storage device can be omitted. According to this configuration, it is possible to charge the battery-powered trolley or the battery-powered forklift during a temporary suspension of operation during the operation of the factory, and it is possible to effectively recover the surplus energy and use the energy effectively. It can be used for

In the above embodiments and examples,
Although described as a system that simply collects the exhaust air energy by using the exhaust air that is exhausted from the factory, it is also possible to adopt a configuration in which the device is installed in a device that takes in air into the factory and recovers energy from the suction air. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of an energy recovery system according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of the energy recovery system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Energy recovery system 20 In-house power generator 21 Windmill device 22 Generator

Continuation of the front page (72) Inventor Daisuke Koyama 1-8-17 Nihonbashi Nishi, Naniwa-ku, Osaka-shi, Osaka Fuyouchi Co., Ltd. (72) Inventor Shuji Nakai 1-817 Nihonbashi Nishi, Naniwa-ku, Osaka-shi, Osaka Fuyouchi Co., Ltd. (72) Ryuji Miyashita 2-4-2, Nishitenma, Kita-ku, Osaka-shi, Osaka Sekisui Chemical Co., Ltd. (72) Shinji Kuwashima 2-4-2, Nishitenma, Kita-ku, Osaka, Osaka Inside Sekisui Chemical Co., Ltd. CE02 DD64 EA13 FA06 FA08

Claims (2)

[Claims] 1. A windmill which guides exhaust air from an exhaust fan installed in a factory, rotates the windmill by the exhausted wind, transmits the rotational force of the windmill to a generator, and rotates the generator. An energy recovery system using factory exhaust air, wherein an energy generated by exhaust air is electrically recovered by providing a private power generation device that generates electric power. 2. The energy recovery system according to claim 1, wherein a voltage control device, a frequency control device, and a power storage device are electrically connected to the private power generator.