CN202768232U - Blade automatic telescopic type marine current energy power generation device - Google Patents

Abstract

The utility model discloses a blade automatic retractable sea current energy generating device, which comprises a base, a circular guide rail, a main shaft and blades. The base is installed on the seabed, the circular guide rail is fixedly installed on the base, the blade is inserted into the central groove of the main shaft, the bottom of the blade is inserted and installed on the circular guide rail, and the main shaft is connected with the input shaft of the generator.

Description

Blade automatic retractable sea current energy generation device

technical field

The utility model relates to a power generation device, in particular to a device for generating power by utilizing ocean energy, and belongs to the field of mechanical engineering.

Background technique

Energy is the basic element for human survival and all production activities, and the main material basis for national economic development. At present, the global energy shortage is increasing, and the burning of traditional fuels has caused global warming and serious damage to the ecological environment. Therefore, countries all over the world are accelerating the pace of development and utilization of green new energy. Ocean currents are formed due to reasons such as sea temperature, tides, and sea winds. Ocean current energy is relatively stable and regular. Many countries are committed to the research of using ocean current energy for power generation, and have achieved some results. Some have been put into use, such as the United Kingdom The horizontal-axis double-blade turbine power generation device developed by IT Power Company has been tested in the coastal waters of Scotland. However, current ocean current energy technology has shortcomings such as difficult installation, low power generation efficiency, and harsh environmental conditions. Therefore, a structural Simple, easy to install, low cost, wide application of ocean current power generation device is a subject to be developed urgently.

Contents of the invention

The purpose of the utility model is to provide a blade automatic retractable sea current energy power generation device. This device can be applied in sea areas with a certain flow rate. By absorbing the kinetic energy of seawater flow and converting it into electric energy, sea current energy power generation can be realized. A new approach.

The technical scheme that the utility model solves its technical problem adopts is:

An ocean current power generation device with automatically retractable blades is characterized in that it can generate electricity by using the advection motion of seawater, and the device is composed of a base, a circular guide rail, a main shaft and blades. The base is installed on the seabed, the circular guide rail is fixedly installed on the base, the blade is inserted into the central groove of the main shaft, the slot at the bottom of the blade is inserted into the circular guide rail, and the main shaft is connected with the input shaft of the generator.

The beneficial effect that the utility model has compared with background technology is:

(1) The device has simple structure, high reliability and convenient maintenance.

(2) It can be used in any place where there is a current, and is not limited by the direction and size of the current.

(3) Due to the special structure of the device, it is guaranteed that the device has a high absorption efficiency.

Description of drawings

The patent will be further described below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a schematic view of the blade structure of the present invention.

Fig. 3 is a schematic diagram of the main shaft structure of the present invention.

Fig. 4 is a schematic diagram of the principle of the movement process of the utility model.

Labels in the figure:

Base (1), blade (2), main shaft (3), circular guide rail (4).

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, the base 1 is installed on the seabed, the circular guide rail 4 is fixedly welded and installed on the base 1, the blade 2 is inserted into the central groove of the main shaft 3, and can move in a plane relative to the main shaft 3, and the slot at the bottom of the blade 2 is inserted into the circular guide rail 4, the main shaft 3 is connected with the generator input shaft. When there is a water flow impact, the blade 2 will be impacted by the water flow. Because the impact area of the water flow is not equal, it will generate a torque to rotate the blade 2. Since the blade 2 is inserted into the central groove of the main shaft 3, the rotation of the blade 2 will be Drive the rotation of the main shaft 3, and the main shaft 3 drives the rotation of the input shaft of the generator to generate electric energy. During the rotation of the blade 2, due to the guiding effect of the circular guide rail 4, it will ensure that the water receiving area of the blade 2 is always unequal, and generate Torque in the same direction, so it can continuously drive the generator to generate electricity.

As shown in Figure 2, the shape of the blade 2 is a cuboid, and there are two slots at the bottom. The enlarged part of the slot is a slot for inserting into the circular guide rail 4, and the other slot ensures that the blade can rotate normally.

As shown in FIG. 3 , the main shaft 3 is a cylindrical structure with a slot in the center of the structure, and the blade 2 can be inserted into the slot to realize the telescopic movement of the blade 2 .

As shown in Figure 4, assuming that Figure (a) is the initial state of the device, the direction of water flow is from left to right. When there is water flow impact, the impacted area of the lower blade 2 of the device is greater than the impacted area of the upper blade 2 of the device. Therefore, Due to the unbalanced force, a rotational moment will be generated. Since the blade 2 and the main shaft 3 are inserted into the installation relationship, the rotation of the blade 2 will drive the rotation of the main shaft 3; when the device rotates to the position shown in figure (b), it can be obtained It is known that the overall force of the device is still unbalanced, so there is always a torque acting on the main shaft 3, so that the main shaft 3 rotates; when the device continues to rotate to reach the state of figure (c), at this time, the blade 2 is parallel to the direction of the water flow, and the blade 2 2 is basically not impacted by the water flow, but due to the inertia of the previous rotation, the blade 2 will continue to rotate; when it reaches the state of figure (d), the area of the device impacted by the water is not equal again, so that there will be torque generated, and the direction The torque is the same as the previous one, and the difference of the impacted area of the water continues to increase, as shown in figure (e), when the blade 2 continues to rotate and reaches the figure (f), the state is the same as that shown in figure (a), and at this time the blade When the water-receiving area difference reaches the maximum, the generated torque reaches the maximum, and the device completes a working cycle. Therefore, as long as there is continuous impact of water flow, the blade 2 will continuously drive the main shaft 3 to rotate, thereby driving the generator to generate electricity.

Claims (2)

1. blade automatic telescopic ocean current energy generator, it is characterized in that: base (1) is installed in the seabed, circular guideway (4) fixedly welded and installed on base (1), blade (2) inserts in main shaft (3) central channel, main shaft (3) is done plane motion relatively, blade (2) bottom slot inserts on the circular guideway (4), and main shaft (3) links to each other with the generator input shaft.

2. a kind of blade automatic telescopic ocean current energy generator according to claim 1 is characterized in that: realize the automatic telescopic function of blade (2) in rotary course by circular guideway (4).

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