CN201568202U - Osmotic power generation device - Google Patents

Abstract

The utility model relates to an osmotic energy generating device, which comprises a concave container and a fresh water container placed on the sea level, and is characterized in that: the concave container is composed of a permeable membrane, and the fresh water container is provided with a pipeline leading to the upper cavity of the concave container , the pipeline is provided with a turbine for driving a generator, and the device can effectively utilize osmotic energy to generate electricity, and has a simple structure and high power generation efficiency.

Description

Osmotic power generation device

technical field

The utility model relates to a device for generating electricity by using new energy, in particular to a device for generating electricity by using osmotic energy.

Background technique

There are many kinds of clean energy, such as wind energy, solar energy, water energy, etc., which can replace thermal power generation that produces carbon emissions, but wind energy, solar energy, and water energy all have the same weakness, that is, they are less affected by geographical, seasonal and weather factors. Big, if there is no air convection, the windmill will not rotate, and if it is rainy, the efficiency of solar power generation will be greatly affected. Osmotic energy is the energy generated by the water pressure difference between solutions of different concentrations. Osmotic energy is a renewable energy source. The energy produced is not only predictable, but also stable, which is different from solar energy and wind energy.

If there are two salt solutions, one with a high concentration of salt and one with a low concentration, then when the two solutions are brought together and separated by an osmotic membrane, osmotic pressure will be created and water will flow from the low concentration The solution flows towards the more concentrated solution. What flows in the river is fresh water, while what exists in the ocean is salt water, and there is a certain concentration difference between the two. At the estuary of a river, the water pressure of fresh water is higher than that of sea water. If a turbine generator is placed at the estuary, the osmotic pressure between fresh water and sea water can drive the turbine to generate electricity. Even in the dry season, inland freshwater rivers always flow into the sea, and the confluence and infiltration of freshwater and seawater occurs every day.

At present, the osmotic power station under study is to install a strip diaphragm at the junction of fresh water and sea water. Although it realizes the function of generating electricity by using the principle of osmosis, its power is only less than 1 watt per square meter, which is far from meeting the needs of large-scale power plants. The required 5 watts of electric energy is low in power generation efficiency.

Contents of the invention

The purpose of the utility model is to provide an osmotic energy generating device, which can effectively utilize osmotic energy to generate electricity, and not only has a simple structure, but also has high power generation efficiency.

The technical solution of the present utility model is: an osmotic energy generating device, including a concave container and a fresh water container placed on the sea level, characterized in that: the concave container is composed of a permeable membrane, and the fresh water container is provided with a The pipeline in the upper chamber is provided with a turbine for driving a generator.

The pipeline is tapered, and its output port communicates with the upper cavity of the concave container.

Valves are installed on the pipeline at the front side of the turbine to facilitate maintenance of pipelines and equipment.

The bottom of the concave permeable membrane member is provided with a sewage hole device.

The utility model has the advantages of: 1. The use of a concave permeable membrane can greatly increase the contact area between fresh water and seawater, increase the generated osmotic pressure value, thereby effectively improving the power generation efficiency. In order to achieve the largest contact area, the concave permeable membrane Can be made into a hemispherical shape;

2. Multiple power generation equipment can be used to work in parallel to form a satellite-arranged osmotic energy power station, which is convenient for the replacement of permeable membranes and the treatment of membrane pollution. When one equipment is shut down for maintenance, it does not affect the work of other equipment;

3. It can effectively prevent the impact of typhoon, tsunami and tidal impact on the work of permeable membrane power generation equipment, and the work is stable;

4. Fans can also be installed on the permeable membrane power generation device at the same time, and the power generation efficiency can be further improved by adding a small wind power station, and it can also become an artificial landscape.

Description of drawings

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a top view of FIG. 1 .

Fig. 3 is a schematic diagram of an embodiment of the utility model.

Detailed ways

As shown in Fig. 1 and Fig. 2, a kind of osmotic energy generating device comprises a concave container 1 and a fresh water container 2 placed on the sea level, it is characterized in that: the concave container is made of a permeable membrane 3, and the fresh water container is provided with a The pipe 4 in the upper cavity of the concave container is provided with a turbine 5 for driving a generator.

The pipeline is tapered, and its output port communicates with the upper cavity of the concave container. A valve 6 is installed on the pipeline on the front side of the turbine to facilitate maintenance of the pipeline and equipment. The bottom of the concave permeable membrane member is provided with a sewage hole 7 device .

The working principle of the utility model is as follows: through the pipeline, the fresh water in the fresh water container flows into the concave container of the permeable membrane. Since the inside of the concave surface of the permeable membrane is fresh water, and the outside of the concave surface is seawater with high concentration, a concentration difference is formed on both sides of the permeable membrane. At this time, the fresh water will seep through the osmotic membrane to the seawater side, thereby generating osmotic pressure, and the suction generated by the osmotic pressure will drive the fresh water to continuously replenish from the fresh water container to the concave container, thereby generating water flow and driving the water in the pipeline. The turbine on the engine rotates, which drives the generator to generate electricity.

As shown in Figure 3, multiple osmotic membrane power generation devices can be used to work in parallel to form a satellite-like osmotic energy power station, which is convenient for the replacement of osmotic membranes and the treatment of membrane pollution. When one equipment is shut down for maintenance, it does not affect several other units. For the work of the equipment, a fan 8 can also be installed on the permeable membrane power generation device, and the power generation efficiency can be further improved by adding a small wind power station, and the electric energy generated by the power generation device 9 and the transformer is supplied externally.

The above descriptions are only preferred embodiments of the present utility model, and all equivalent changes and modifications made according to the patent scope of the present utility model shall fall within the scope of the present utility model.

Claims (5)

1. osmotic energy electricity generating device, comprise the concavity container and the fresh water container that place on the sea level, it is characterized in that: described concavity container is made of permeable membrane, and described fresh water container is provided with towards the pipeline of concavity container epicoele, and described pipeline is provided with the turbine that is used to drive generator.

2. osmotic energy electricity generating device according to claim 1 is characterized in that: described pipeline is tapered, and its output port is connected with concavity container epicoele.

3. osmotic energy electricity generating device according to claim 1 is characterized in that: being positioned at the turbine installed in front on the pipeline has valve, so that pipeline and overhaul of the equipments.

4. osmotic energy electricity generating device according to claim 1 is characterized in that: described concavity permeable membrane member bottom is provided with the pollutant exhaust hole device.

5. osmotic energy electricity generating device according to claim 1 is characterized in that: described fresh water container can be reservoir or wet pit.

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