WO2009070962A1

WO2009070962A1 - A seawater tidal power generation device

Info

Publication number: WO2009070962A1
Application number: PCT/CN2008/001835
Authority: WO
Inventors: Hongling Zhao
Original assignee: Hongling Zhao
Priority date: 2007-11-02
Filing date: 2008-11-03
Publication date: 2009-06-11
Also published as: CN101144459A; CN101144459B

Abstract

A seawater tidal power generation device, which has a power transmission tower connected with a jack box, and a bearing wall constructed on a coastal mudflat. A ten thousand tons class floating body is provided in a sea outside the bearing wall, and a triangle supporting rack is placed on a centre position of the floating body. A power arm of a lever and the top end of the triangle supporting rack are connected with each other. A pivot of the lever is clamped inside a groove on the bearing wall. A tail end of a resistance arm of the lever and a ring-shaped chain inside a factory building are fixedly connected. Moreover the length of the power arm of the lever is shorter than that of the resistance arm of the lever.

Description

N2008/001835

-1- Floating body seawater tidal power generation device

The present invention relates to a hydroelectric generating apparatus, and more particularly to a floating type seawater tidal power generating apparatus. Background technique

Energy shortages and environmental pollution are two major problems facing the people of the world. China is in a period of relatively tight power supply, seriously affecting the work, agricultural production and people's daily life, and seeking new energy sources that are both environmentally friendly and unwarranted. It is an urgent task for the benefit of future generations. Developing and utilizing tidal power generation is an excellent way out. Whether it is international or domestic, the existing small number of tidal power stations use the unique geographical environment of the seaside to use the mobility of the rising and falling tides to drive the turbine to generate electricity. It is not subject to the geographical environment. Moreover, the water flow is limited, and it is more limited by the sea channel. It is small in scale and difficult to develop. Disclosure of invention

"Technical problems to be solved"

The object of the present invention is to provide a kinetic energy for utilizing rising tides, buoyancy at high tide, and gravity at low tide to drive mechanical power generation during the current tidal power station, without any pollution of the floating body type tidal power generation. Device.

"Technical means to solve problems"

To achieve the above object, the following technical solutions are adopted: a seawater tidal power generating device, comprising a distribution box connected to a generator, a transmission tower connected to the distribution box, and a load-bearing building on a coastal tidal flat having a seawater depth of more than seven meters. Wall, a groove extending 20 meters from the apex of the load-bearing wall, a factory building with generators and transmission equipment on the coast 75 meters away from the load-bearing wall, characterized in that: 10,000-ton floating body is located outside the load-bearing wall In the seawater, the upper center position of the 10,000-ton floating body is equipped with a triangular support frame, the length of the power arm of the lever is smaller than the length of the resistance arm, the front end of the power arm is connected with the top end of the triangular support frame, and the fulcrum of the lever is stuck on the load-bearing wall. In the groove, the end of the resistance arm of the lever is fixedly connected with the endless chain in the factory building, and the upper end of the endless chain is installed in the gear at the top of the plant beam. The lower end is coupled to the transmission gear of the transmission, and the transmission is coupled to the generator.

In the floating type seawater tidal power generating device, the load-bearing wall is 30 meters long, 2 meters wide, 20 meters high in the middle, and 10 meters high in both ends.

The floating type seawater tidal power generating device has a lever length of 100 meters, a width of 15-0. 1 meter, and a thickness of 20.11 meters. Its power arm is 20 meters long and the resistance arm is 80 meters long.

The float body of the floating type seawater tidal power generating device has a length of 50 meters, a width of 40 meters, a middle height of 9 meters, and a side height of 5 meters.

"Effects on Prior Art"

By adopting the above technical solution, the beneficial effects of the invention are: using seawater to generate electricity, saving fresh water resources, generating electricity without pollution, no fuel, low cost; occupying a small area, the 10,000-ton tidal power station only needs a few acres of tidal flat, 100 million yuan of funds. The power generation equipment is simple, low-speed operation, less safe and reliable, and can be remotely managed to save manpower. There is no need to spend huge sums of money to build railways and highways, saving a lot of capacity. BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view of the entire invention.

Figure 2 is a schematic view of the structure of the floating body of the present invention.

Figure 3 is a schematic view of a power station of a tower structure. The best way to implement the invention

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

Referring to Figure 1, Figure 2, the present invention first selects a coastal tidal flat with a depth of more than seven meters, and builds a load-bearing wall 13 that is 30 meters long and 2 meters long, 20 meters high in the middle, and 10 meters high at both ends, also called "dock". Or a fulcrum, a fulcrum used to park a floating body and a fixed lever. (Piling, cement pouring, block, etc.) Then build a power house 7 with a length of 50 meters, a width of 30 meters and a height of 20 meters on the shore 75 meters away from the dock to install the generator and its transmission equipment. Construct a 10,000-ton floating body 1 that is 50 meters long, 40 meters wide, 9 meters high in the middle, and 5 meters high on all sides. (Small power stations below 10,000 tons, medium-sized for more than 100,000 tons, and large for more than one million tons). The floating body 1 is made of steel, cement, glass steel, plastic, used hull and pontoon. A triangular support frame 2 is mounted on the upper center of the floating body 1, triangle The top end of the type support frame 2 is connected to the lever 3, and the length of the lever power arm 31 is smaller than the length of the resistance arm 32. The lever is a shape of a pole that is 100 meters long, 15-0. 1 meter wide and 2-0. 1 meter thick and is welded with steel. Its power arm 31 is 20 meters long and the resistance arm 32 is 80 meters long. At a distance of 20 meters from the top of the load-bearing wall 13, a groove 4 of about 1 cm is inserted up and down, and the fulcrum of the lever is placed in the groove 4. The end of the power arm 3 of the lever is connected with the top end of the triangular support frame 2 on the floating body 1. The end of the resistance arm 5 enters the factory building 7, and is fixedly connected with the endless chain 6 of 18 meters wide and 0. 2 meters wide, and the endless chain is connected. The upper end is mounted in the gear at the top of the beam, the lower gear is coupled to the transmission gear 12 of the transmission, the transmission 12 is coupled to the generator 8, the generator 8 is coupled to the distribution box 9, and the distribution box 9 is coupled to the transmission tower 10.

According to the above structure, the present invention can also be designed into the shape of a classical building, and FIG. 3 is a schematic view of a power station of a tower-like structure. The power station is divided into three layers, and the triangular support frame 2 is supported in the tower, and the lever 3 Located in the center of the tower, the endless chain 6 is placed in the power house 7. This structure not only does not occupy the land of the coastal tidal flat, but also has ornamental value.

The working principle of the invention

The tide is a natural phenomenon in which the water level is regularly fluctuated by the gravitational pull of the sun, the moon and the earth. The early tide is the tide, and the late tide is the sputum. Twice a day. Due to different geographical conditions, fluctuations vary. China's coastal areas are generally about four meters, and high ones are more than six meters, called the tide height. The present invention utilizes this kinetic energy that causes the floating body to rise and fall to generate electricity. Buoyancy is the weight of the floating body 1 row of water, the water level is the same as the floating body's own weight drop.

The floating body 1 is placed in the seawater more than 7 meters deep outside the load-bearing wall 13. When the seawater rises, the tide pushes the floating body 1 upward, and the floating body 1 pushes the force arm 31 upward through the triangular support frame 2. The power arm 31 takes the fulcrum 14 as the axis, and the resistance arm 32 pulls down the chain 6 to drive the gear on the 7-seat beam of the power house to rotate, and the shift gear 12 moves. After the transmission 11 accelerates, the generator flywheel is finally rotated to drive the generator 8 to generate electricity, and the transmission tower 10 outputs A, B, C three-phase electricity.

When falling, the tidal water pulls the floating body 1 downward (actually the floating body's own weight drops to pull the floating body), so that the power arm 31 moves downward with the fulcrum 14 as the axis. The resistance arm 32 lifts the endless chain 6 and moves up. The drive gear 13 is rotated in the opposite direction to cause the engine 8 to generate electricity (the commutator can also be installed to rotate in the original direction).

According to the movement of the wire in the magnetic field, the principle of generating an electromotive force by cutting the magnetic line of force. In addition to the length of the wire, the strength of the magnetic field is a condition that limits the amount of power generated. Another important factor is the cutting magnetic The speed of the force line. To this end, the length of the power arm 31 of the lever of the present invention is less than the length of the resistance arm 32, the lever of 100 meters long, the resistance arm of 80 meters is four times that of the power arm (20 meters), two climaxes of the tide day, two A low tide meter is 16 meters. The lever is magnified 4 times equal to 64 meters. The shift gear of the present invention is an acceleration gear of the order of 1:4. That is 64 meters X 4 ^S = 262144 meters, so the average walks per minute: 262144 meters 60 (60 points X 24) = 182 meters. If calculated according to the circumference of the generator shaft of 1 meter, the generator needs to turn one week: 182 m / min ÷ 1 m = 182 rev / min.

This speed can meet the basic speed requirements of the generator. The Tangshan Douhe Power Plant's thermal power generating unit is 100 rpm, and the wind turbine's rotating speed is lower. These two measures not only make the four-meter high-power generation, but also cheaper.

According to the provisions of China's power supply frequency of 50 Hz / sec. The generator must increase the number of poles of the magnetic field, at least 60 pairs of poles.

The floating body of the present invention can be designed in any shape, but the key is that the thickness is thin, and the specific gravity of the floating body is 0.5 (including the weight of the triangular support frame), and the work efficiency is high. Industrial applicability

Economic efficiency analysis:

According to the conservation of energy: energy can neither be produced nor destroyed, and can only be changed from one form to another.

According to the daily tidal height of 4 meters, the total stroke is 16 meters, and the international standard one horsepower is equal to one second to convert 76. 06 kilograms of objects by one meter. (China is based on 75 kilograms)

1000 kg X 10000 tons (Note: 1000 kg per ton, 10,000 tons of floating body weight) - X 16 m ÷ (60 seconds X 60 X 24 ) ÷ 76. 06 kg = 24. 4 hp.

According to international standards: 1 horsepower = 735 watts of energy conversion: 735 watts X 24. 4 horsepower seconds = 17. 934 watts / sec.

Electricity production per hour: 17. 934 watts X 60 seconds X 60 = 64562400 watts;

1 kW 1 hour is 1 degree electricity converted to: 64562400 ÷ 1000=64562. 4 degrees; daily output is calculated by 20 hours (minus 4 hours relative stable tide period)

645624 degrees X 20 hours =1291248 kWh;

Calculated according to the current electricity price of 0.5 yuan: 0. 5 X 1291248 degrees = 64.56 million.

The above is the energy input to the lever by the 10,000-ton floating body, and the lever is enlarged by 1: 4 and then passed through the chain. Pulling gears, shifting and other mechanical movements requires some loss. Therefore, the output power is less than the input power. According to the efficiency of 50%, there are also: 64.56 million X 50% = 32.28 million.

The annual output value is: 32.28 million yuan 360 days =1. 16.2 billion yuan.

Site selection conditions:

1. Any coastal tidal flat can be used, rock geology is the best, and those soft foundations need reinforcement.

.

2. A 10,000-ton tidal power station can be built with a depth of more than 7 meters, and a small power station can be developed as appropriate.

3. If the tide height is more than 4 meters, it can build more than 10,000 tons of tidal power stations. The following can also be used for small-scale power stations.

Claims

Rights request

1. A floating seawater tidal power generating device comprising a distribution box connected to a generator, a transmission tower connected to the distribution box, and a load-bearing wall at a seashore depth of more than seven meters, at the apex of the load-bearing wall A 20-meter-wide recess is provided, and a factory building with generators and transmission equipment is built on the coast 75 meters away from the load-bearing wall. The characteristics are: The 10,000-ton floating body is located in the sea water outside the load-bearing wall, the 10,000 tons The upper center position of the floating body is mounted with a triangular support frame. The front end of the power arm of the lever is connected with the top end of the triangular support frame. The length of the power arm of the lever is smaller than the length of the resistance arm, and the pivot point of the lever is stuck in the groove of the bearing wall. The end of the resistance arm of the lever is fixedly connected with the endless chain in the factory building. The upper end of the endless chain is installed in the gear at the top of the plant beam, the lower end is connected with the transmission gear of the transmission, and the transmission is connected with the generator.

The floating type seawater tidal power generating apparatus according to claim 1, wherein: said load-bearing wall is 30 meters long, 2 meters wide, 20 meters high in the middle, and 10 meters high at both ends.

3. The floating type seawater tidal power generating device according to claim 1, wherein: the lever has a length of 100 meters, a width of 15-0. i meters, a thickness of 2-1 meters, and a power arm length of 20 meters. The resistance arm is 80 meters long.

The floating type seawater tidal power generating apparatus according to claim 1, wherein the floating body is '50 m long, 40 m wide, 9 m high in the middle, and 5 m high on four sides.