KR20110073749A - Elevator cage, elevator for wind power generation and method of generating power using elevator - Google Patents

Abstract

PURPOSE: Elevator cage and elevator for wind power generation and a method of generating power with wind using an elevator are provided to supply power to a consumer in a building since power is generated using wind rising when an elevator lifts, due to a rotor installed in an elevator cage. CONSTITUTION: An elevator cage for wind power generation comprises a cage, a rotor(120) and a generator. The cage has a box shape and comprises a door. The rotor comprises a rotating shaft and a rotating vane. The rotor is installed on the cage to make contact with external air. The generator converts the torque of the rotating shaft rotating by wind to electric energy and generates power.

Description

Elevator cage for wind power generation, elevator for wind power generation and wind power generation method using elevator {Elevator cage, Elevator for wind power generation and method of generating power using elevator}

The present invention relates to a wind power generation elevator cage, a wind power generation elevator, and a wind power generation method using an elevator, and more specifically, a wind power generation elevator cage capable of generating power using wind power generated inside an elevator pit, wind power generation It relates to an elevator and a wind power generation method using the elevator.

Renewable energy or renewable energy means energy generated in a natural state such as solar, solar, wind, tidal, and geothermal.

Recently, due to problems such as climate change and fossil fuel depletion, the utilization of such renewable energy is actively discussed. Globally, technology development to reduce greenhouse gas emissions is being carried out competitively. In Korea, the government is leading the reduction of greenhouse gas emissions under the policy of low carbon green growth.

In the building sector, which accounts for a large portion of greenhouse gas emissions, greenhouse gas reductions will become increasingly mandatory. To this end, various ways to realistically implement a so-called zero-energy building have been sought. In particular, with the development of construction technology, construction of skyscrapers has become possible, but there are still insufficient solutions to environmental problems such as energy reduction and carbon emission reduction of skyscrapers.

Renewable energy utilization technology in buildings is mainly focused on the utilization of solar energy using solar panels. It is urgent to develop renewable energy technologies using various environmental factors existing in buildings as well as solar energy applicable to building envelopes.

In particular, the wind naturally occurs due to the stack effect inside the elevator pit. That is, in the winter season, rising air flow is generated by the stack effect, and in the summer, falling air flow is generated by the stack effect. As such, the wind generated by the stack effect inside the elevator pit and the wind generated by the movement of the elevator cage inside the elevator pit are not yet utilized as renewable energy.

An object of the present invention is to provide a wind power generation elevator cage, a wind power generation elevator and a wind power generation method using an elevator that can generate power by using the wind generated inside the elevator pit by the stack effect and the movement of the elevator cage. .

Elevator cage for wind power generation according to an embodiment of the present invention as a box shape cage body having a door at one side; A rotor having a rotary shaft and one end fixed to the rotary shaft and the other end extending toward the radially outer side of the rotary shaft, the rotor is disposed to contact the outside air on at least one side of the upper or lower side of the cage body ; And a generator disposed at one side of the rotor to generate electric power by converting the rotational force of the rotating shaft rotated by wind power into electrical energy.

Here, the cage body is disposed to surround the outside of the rotor, the rotor may further include a rotor housing formed with a plurality of vent holes to be in contact with the outside air.

In addition, the generator is electrically connected to the demand source that requires power, the power generated by the generator can be supplied directly to the demand source.

Furthermore, a DC / AC converter for converting the AC power generated by the generator into DC power; And a power storage unit for storing the DC power converted by the DC / AC converter.

In addition, the rotor may be provided in plurality on the upper side or the lower side of the cage body.

In addition, the wind power elevator according to an embodiment of the present invention includes an elevator cage arranged to be movable in the vertical direction on the guide rails (guide rails) disposed inside the elevator pit (vertical) formed in the vertical direction inside the building; A hoist provided with a driving unit and fixedly disposed above the elevator pit; A main rope having one end fixed to an upper side of the elevator cage, wound around the hoisting machine, and having both ends lifted by the driving unit; And a counter weight fixed to the other end of the main rope and spaced apart from the elevator cage by the main rope and vertically moving in an opposite direction to the elevator cage, wherein the elevator cage has a box shape. As a cage body having a door on one side; A rotor having a rotary shaft and a rotary blade having one end fixed to the rotary shaft and the other end extending radially outward of the rotary shaft, the rotor being disposed to contact the outside air at least one side of the cage body; And a generator disposed at one side of the rotor to generate electric power by converting the rotational force of the rotating shaft rotated by the wind into electrical energy.

In addition, the wind power generation method using an elevator according to an embodiment of the present invention comprises the steps of arranging the rotor to contact the outside air on at least one side of the upper or lower side of the elevator cage; Rotating the rotor by wind power generated when the elevator descends and / or wind power generated by a stack effect inside the elevator pit; And generating power by converting the rotational force of the rotor rotating by the generator disposed on one side of the rotor into electrical energy.

According to the wind power generation elevator cage, wind power elevator and wind power generation method according to an embodiment of the present invention,

First, since the rotor is disposed on at least one side of the upper or lower side of the elevator cage, it is possible to generate power by using wind power naturally occurring when the elevator descends, so that power can be supplied to an electric demand destination inside the building.

Second, the power generation is possible by rotating the rotor with wind power generated by the stack effect generated inside the elevator pit even while the elevator is stopped.

Third, when the elevator is used in a high-rise building where a large number of elevators and the stack effect is large, the effect of wind power generation can be maximized.

Fourth, the rotor housing can be provided to solve the safety and maintenance of the rotor.

Fifth, there is an effect that can use the power when necessary to store the power by having a power storage unit for storing the power generated by the generator.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical idea of the present invention, various equivalents that may be substituted for them at the time of the present application It should be understood that there may be water and variations.

First, an elevator cage for wind power generation and an elevator for wind power generation according to an embodiment of the present invention will be described. 1 is a longitudinal sectional view showing a wind turbine according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the elevator cage for wind power shown in Figure 1, Figures 3 and 4 of the rotor shown in Figure 2, respectively A plan view showing another embodiment.

First, referring to FIG. 2, the wind power elevator includes an elevator cage 100, a hoist 200, a main rope 300, and a counter weight 400.

The elevator cage 100 is arranged to be movable in the vertical direction on guide rails GR disposed inside the elevator pit P formed in the vertical direction inside the building.

The hoist 200 includes a drive unit 210, is fixedly disposed above the elevator pit P, and may lift the main rope 300 in both directions. The hoist 200 more specifically includes a drive unit 210, a drive sheave 220, a deflector sheave 230, and the like, and thus a detailed description thereof will be omitted.

One end of the main rope 300 is fixed to the upper side of the elevator cage 100, and the other end thereof is fixed to the upper side of the counter weight 400. The main rope 300 is wound around the hoisting machine 200 so that both ends thereof are lifted by the driving unit 210 of the hoisting machine 200.

The counter weight 400 is spaced apart from the elevator cage 100 by the main rope 300 and moves vertically in the opposite direction to the elevator cage 100.

Also, referring to FIG. 2, the cage cage 110 for wind power generation is described in more detail. The cage cage 110 includes a cage body 110, a rotor 120, and a generator 130.

The cage body 110 has a door shape and has a door D on one side.

The rotor 120 is provided with a rotating shaft 121 and the rotary blade 122, and is disposed to contact the outside air at least one side of the upper or lower side of the cage body 110. One end of the rotary vanes 122 of the rotor 120 is fixed to the rotation shaft 121, and the other end thereof extends radially outward of the rotation shaft 121.

The rotor 120 may be disposed only on the upper side of the cage body 110 as needed, may be disposed only on the lower side, or may be disposed on both the upper and lower sides. In the embodiment of the present invention, the rotor 120 is disposed on both the upper and lower sides of the cage body 110 as an example.

At this time, the elevator cage 100 is disposed to surround the outer side of the rotor 120 in the cage body 110, may include a rotor housing 140 formed with a plurality of vent holes 141 to be in contact with the outside air. have. Various shapes may be selected as the shape of the rotor housing 140. In this embodiment, the wires are vertically entangled with each other to form a vent hole 141. Thus, the rotor housing 140 may be provided to solve safety and maintenance problems for the rotor 120.

In addition, only one rotor 120 may be disposed on one side of the cage body 110 as shown in FIG. 3, and a plurality of rotors 120 may be provided on one side of the cage body 110 as shown in FIG. 4. This may be determined by the amount of air generated by the elevator and the amount of power generated by the generator 130.

The generator 130 is disposed on one side of the rotor 120 to generate a power by converting the rotational force of the rotating shaft 121 is rotated by the wind into electrical energy.

The generator 130 is electrically connected to the demand source that requires power, so that the power generated by the generator 130 may be directly supplied to the demand source. In buildings, there are countless demands for power. For example, the display apparatus inside the elevator cage 100, the display apparatus of an elevator platform, various loads, a fan, the lamp inside a building, the lamp outside a building, etc. are the same. In particular, it can be supplied to the power demand source for the building common area, and can cover a part of the power demand of the common area.

Alternatively, as shown in FIG. 2, the elevator cage 100 has a DC / AC converter 151 and a DC / AC converter configured to convert AC power generated by the generator 130 to DC power at one side thereof. The power storage unit 152 may further include a power storage unit 152 storing the DC power converted at 151. The DC / AC conversion unit 151 and the power storage unit 152 may be disposed in the elevator cage 100 or may be disposed in the elevator machine room or the electric room as necessary.

The power stored in the power storage unit 152 may be used as an emergency power source in a situation such as a power outage of a building. That is, the electricity generated by the generator 130 is converted into a DC power source that is a type of power that can be stored by the DC / AC converter 151 and stored in the power storage unit 152. The DC power stored in the power storage unit 152 may be converted into AC power by another DC / AC converter which may convert DC power into AC power if necessary and may be supplied to the customer.

As such, the electricity generated by the generator 130 may be supplied to power demand sources such as various electric devices in the building to cover power consumed by the building itself, or stored in the power storage unit 152 as an emergency power source if necessary. May be utilized.

In this embodiment, one elevator is illustrated, but in the case of a building in which several elevators are used, it is possible to use each elevator. Moreover, in the case of high-rise buildings, the amount of power generation can be further increased because the number of elevators and the number of elevator operations are much higher.

Hereinafter, the operation principle of the wind power elevator according to an embodiment of the present invention. 5 to 7 are longitudinal cross-sectional views each showing the operation concept of the wind power elevator shown in FIG.

First, the case where the elevator cage is raised is shown in FIG. That is, as the elevator cage 100 rises, the wind power downward is transmitted to the elevator cage 100. Due to the wind, the rotor 120 mainly disposed above the elevator cage 100 is rotated, and electric power is produced by the generator 130 by the rotational force.

In contrast, FIG. 6 illustrates a case in which the elevator cage descends. In other words, while the elevator cage 100 descends, the wind turbine is directed upward to the elevator cage 100. The rotor 120 disposed mainly below the elevator cage 100 is rotated by the wind power, and electric power is produced in the generator 130 by the rotational force.

In addition, as illustrated in FIG. 7, a stack effect occurs inside the elevator pit P even while the elevator is stopped. For example, in the winter season, an upward air flow is generated inside the elevator pit P due to the stack effect, and in the summer, a downward airflow is generated inside the elevator pit P due to the stack effect. Power is also generated by rotating the rotor 120 by the rising wind.

Hereinafter, a wind power generation method using an elevator according to an embodiment of the present invention will be described.

8 is a flowchart illustrating a wind power generation method using an elevator according to an exemplary embodiment of the present invention. Referring to FIG. 8, the wind power generation method using an elevator includes steps S10 to S30.

In step S10, the rotor 120 is disposed on at least one side of the upper or lower side of the elevator cage 100 to be in contact with the outside air.

In step S20, the rotor 120 is rotated by wind power generated when the elevator moves up and down and / or wind power generated by a stack effect inside the elevator pit P.

In step S30 includes the step of generating power by converting the rotational force of the rotor 120 rotated by the generator 130 disposed on one side of the rotor 120 into electrical energy.

Thus, according to the embodiment of the present invention, by using the rotor 120 disposed on at least one side of the upper or lower side of the elevator cage 100 is possible to generate electricity by using the wind power naturally generated when the elevator is raised and lowered the electricity demand destination in the building Can be powered. In addition, power generation is possible by rotating the rotor 120 with wind power generated by the stack effect generated inside the elevator pit P while the elevator is stopped. In addition, it is possible to maximize the effect of the wind power generation when used in a high-rise building in which many elevators are used and stack effect is large.

1 is a longitudinal sectional view showing an elevator for wind power according to an embodiment of the present invention.

2 is an exploded perspective view of the elevator cage for wind power generation shown in FIG.

3 and 4 are plan views showing another embodiment of the rotor shown in FIG. 2, respectively.

5 to 7 are longitudinal cross-sectional views each showing the operation concept of the wind power elevator shown in FIG.

8 is a flowchart illustrating a wind power generation method using an elevator according to an exemplary embodiment of the present invention.

<Code Description of Main Parts of Drawing>

100 ... elevator cage 110 ... cage body

120 ... rotor 130 ... generator

200 ... Hoist 300 ... Main Rope

400 ...

Claims (7)

A cage body having a door shape on one side as a box shape; A rotor having a rotary shaft and one end fixed to the rotary shaft and the other end extending toward the radially outer side of the rotary shaft, the rotor is disposed to contact the outside air on at least one side of the upper or lower side of the cage body ; And An elevator cage for wind power generation, comprising: a generator disposed on one side of the rotor to generate electric power by converting rotational force of the rotating shaft rotated by wind power into electrical energy. The method according to claim 1, The cage cage is disposed on the cage body to surround the outside of the rotor, the rotor cage for a wind power generation, characterized in that the rotor housing further comprises a plurality of vent holes to be in contact with the outside air. The method according to claim 1, The generator is electrically connected to the demand source for power, the power generated by the generator is an elevator cage for wind power generation, characterized in that directly supplied to the demand source. The method according to claim 1, A DC / AC conversion unit capable of converting AC power generated by the generator into DC power; And Elevator cage for wind power generation further comprises a power storage unit for storing the DC power converted by the DC / AC converter. The method according to any one of claims 1 to 4, The rotor is, Elevator cage for wind power, characterized in that provided in plurality on the upper or lower side of the cage body. An elevator cage arranged to be movable in a vertical direction on guide rails disposed inside an elevator pit formed in a vertical direction inside the building; A hoist provided with a driving unit and fixedly disposed above the elevator pit; A main rope having one end fixed to an upper side of the elevator cage, wound around the hoisting machine, and having both ends lifted by the driving unit; And The other end of the main rope is fixed to the upper side, and comprises a counter weight (counter weight) which is spaced apart from the elevator cage by the main rope to move vertically in the opposite direction to the elevator cage, The elevator cage, A cage body having a door shape on one side as a box shape; A rotor having a rotary shaft and a rotary blade having one end fixed to the rotary shaft and the other end extending radially outward of the rotary shaft, the rotor being disposed to contact the outside air at least one side of the cage body; And An elevator for wind power generation, comprising: a generator disposed on one side of the rotor to generate electric power by converting rotational force of the rotating shaft rotated by wind power into electrical energy. Arranging the rotor to be in contact with the outside air on at least one side of the upper or lower side of the elevator cage; Rotating the rotor by wind power generated when the elevator descends and / or wind power generated by a stack effect inside the elevator pit; And The wind power generation method using an elevator comprising the step of generating power by converting the rotational force of the rotor rotated by the generator disposed on one side of the rotor into electrical energy.

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