CN203728601U - Solar seawater desalination and power generation device - Google Patents

Abstract

A solar seawater desalination and power generation device belongs to the technical field of water treatment. Its technical solution is that it includes a concentrating solar cooker, a distillation tank, a condenser and a fresh water barrel. The distillation tank is located at the focus of the solar cooker and passes through the Connected with the solar cooker, its top is provided with a water inlet and a steam outlet, and its bottom is provided with a brine outlet with a brine exhaust solenoid valve. The condenser includes a sealed shell and a condensation pipe installed inside the sealed shell. The inlet of the sealed shell The water inlet is connected with the water adding pump, the water outlet is connected with the water inlet of the distillation tank, one end of the condensation pipe is connected with the steam outlet of the distillation tank through a steam conduit, and the condensed water discharged from the other end flows into the fresh water barrel through the water pipe. The utility model uses renewable solar energy as the main energy source, which not only saves the consumption of non-renewable energy, reduces the cost of seawater desalination, but also reduces environmental pollution, and can adapt to the general trend of developing low-carbon economy and environmental protection.

Description

A solar desalination and power generation device

technical field

The utility model relates to a device for extracting fresh water from sea water and generating electricity by using solar energy, which belongs to the technical field of water treatment. the

Background technique

Water is the source of life. With the rapid growth of the world's population and the acceleration of urbanization, the demand for fresh water is increasing, resulting in a serious shortage of water resources. The contradiction between water supply and demand will become more and more prominent. Therefore, the development and utilization of seawater resources It is an urgent and strategic event. However, the existing seawater desalination technology is difficult to develop due to the disadvantages of complex process, high energy consumption, large investment, poor benefit, and serious secondary pollution. the

With the depletion of non-renewable energy such as coal and oil, energy issues have gradually become a bottleneck restricting the development of the international society and economy. More and more countries have begun to implement the "Sunshine Plan" to develop solar energy resources and seek new impetus for economic development. With the adjustment of the world's energy policy, the development of low-carbon economy and the strengthening of environmental protection have become the general trend. Solar energy is a kind of energy with abundant resources. It has the advantages of low operating cost, simple equipment maintenance, no noise, no pollution, etc. It has gradually attracted people's attention in recent years. At present, solar energy is mainly used to generate electricity and prepare hot water, but because the solar radiation on the earth's surface fluctuates greatly with time, it cannot meet the use requirements when the light is weak, and the collected solar energy is often not fully utilized when the light is strong, resulting in Big waste. Therefore, how to improve the comprehensive utilization rate of solar energy has always been a difficult problem faced by relevant technical personnel. the

Contents of the invention

The purpose of the utility model is to provide a solar seawater desalination and power generation device to reduce the cost of seawater desalination and reduce environmental pollution. the

Problem described in the utility model is realized with following technical scheme:

A solar seawater desalination and power generation device, which includes a concentrating solar cooker, a distillation tank, a condenser and a fresh water barrel. The distillation tank is located at the focus of the solar cooker and connected to the solar cooker through a bracket. Water outlet and steam outlet, the bottom is provided with a brine outlet with a brine discharge solenoid valve, the condenser includes a sealed shell and a condensation pipe installed inside the sealed shell, the water inlet of the sealed shell is connected to the water pump, and the water outlet is connected to the distillation The water inlet of the tank, one end of the condensation pipe is connected with the steam outlet of the distillation tank through a steam conduit, and the condensed water discharged from the other end flows into the fresh water bucket through the water pipe.

In the above solar seawater desalination and power generation device, the side wall and the bottom plate of the distillation tank are provided with two layers, and the oil chamber surrounded by the two layers of side walls and the two bottom plates is filled with medium oil. A Stirling generator is installed, and the heating pipe of the Stirling generator is inserted into the medium oil through the generator installation hole on the outer side wall of the distillation tank. the

In the above-mentioned solar seawater desalination and power generation device, four Stirling generators are arranged, and they are evenly distributed around the distillation tank. the

In the above solar seawater desalination and power generation device, an activated carbon tank is arranged in the middle of the water pipe between the condensing pipe of the condenser and the fresh water bucket. the

The above solar seawater desalination and power generation device is provided with a steam solenoid valve on the steam conduit between the condenser pipe and the distillation tank. the

In the above solar seawater desalination and power generation device, the upper part of the cavity surrounded by two layers of side walls and two layers of bottom plates of the distillation tank is provided with an oil change port. the

In the above solar seawater desalination and power generation device, the solar cooker is provided with an intelligent sunlight tracking device. the

The utility model uses renewable solar energy as the main energy source, which not only saves the consumption of non-renewable energy, reduces the cost of seawater desalination, but also reduces environmental pollution, and can adapt to the general trend of developing low-carbon economy and environmental protection. In addition, the utility model integrates seawater desalination and solar power generation into one system, and by rationally distributing the energy consumed by the two, the comprehensive utilization rate of solar energy can be improved and energy waste can be reduced. the

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail. the

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

Figure 2 is a sectional view of the main components;

Fig. 3 is the flowchart of the utility model.

The list of labels in the figure is: 1. Motor, 2. Solar cooker, 3. Light tracking sensor, 4. Retort tank, 5. Condenser, 6. Fresh water barrel, 7. Activated carbon tank, 8. Sea water, 9. Medium oil , 10. Oil change port, 11. Water inlet, 12. Steam outlet, 13. Brine exhaust solenoid valve, 14. Condenser pipe, 15. Water pump, 16. Cooling pipe, 17. Heating pipe, 18. Gear, 19, Steam solenoid valve, 20, sealed casing, 21, air guide channel. the

Detailed ways

Referring to Fig. 1 and Fig. 2, the utility model comprises solar cooker 2, distillation tank 4, condenser 5, fresh water tank 6, activated carbon tank 7, medium oil 9, halogen discharge solenoid valve 13, water pump 15, steam solenoid valve 19 and Stirling generator. The upper part of the distillation tank 4 is provided with an oil change port 10 , a water inlet 11 and a steam outlet 12 . The condenser 5 includes a condenser tube 14 and a sealed casing 20 . The Stirling generator includes a cooling pipe 16, a heating pipe 17, an air guide channel 21, a gear 18 and the like. The motor 1 and the light tracking sensor 3 are important parts of the sun tracking device. The functions of each component are as follows:

Motor 1: Complete the light tracing action.

Solar cooker 2: collect solar heat radiation, focus a larger area of sunlight on the retort 4, and increase the temperature of the retort 4. the

Light tracking sensor 3: determine the incident direction of sunlight. the

Distillation tank 4: It mainly completes the functions of supplementing seawater, generating steam, collecting brine, and exchanging heat of the Stirling generator. the

Condenser 5: Absorb the heat released by the steam to cool it into water. the

Fresh Water Bucket 6: Collects condensed fresh water. the

Activated carbon tank 7: purify the desalinated water. the

Medium oil 9: store heat. the

Oil change port 10: When the medium oil 9 volatilizes too much, add medium oil into the oil cavity through the oil change port 10. the

Water inlet 11: complete the replenishment of water to the distillation tank 4 through this port. the

Steam outlet 12: The water vapor generated in the distillation tank 4 is drawn out from this outlet, and enters the condenser 5 through the steam conduit. the

Brine discharge solenoid valve 13: discharge the brine in the distillation tank 4. the

Cooling pipe 16: The working fluid of the Stirling generator is cooled here. the

Heating tube 17: The working fluid of the Stirling generator is heated and expanded here. the

Gear 18: drives the generator rotor to rotate to generate electricity. the

Steam solenoid valve 19: controls the start and stop of the desalination process of seawater. the

Air guide channel 21: connects the heating pipe 17 and the cooling pipe 16, passes the hot working medium into the cooling pipe, and passes the cold working medium into the heating pipe. the

The sunlight tracking device mainly obtains the position of the sun by means of a four-quadrant photosensitive sensor and transmits the information to the single-chip microcomputer, and the single-chip microcomputer controls the rotation of the motor 1 so that the solar cooker faces the sun. the

The supplementary water of retort 4 is coordinated and controlled by single-chip microcomputer, and water level detection sensor is arranged in the retort 4 to feed back signal to single-chip microcomputer, is controlled by single-chip microcomputer and adds water pump 15 and carries out water replenishment. the

The sunlight gathered by the solar cooker 2 first heats the medium oil 9 (boiling point 250° C.), and then the medium oil 9 heats the seawater in the distillation tank 4 and the gas in the Stirling generator. the

When the water level in the retort 4 reaches the lower limit, the brine discharge solenoid valve 13 is opened to discharge the brine in the retort 4 . the

The device adopts the distillation method to desalinate the seawater, that is, the generated steam directly passes through the condenser pipe, and the cooling water used by the condenser 5 is the seawater to be desalinated, so that the seawater can be preheated. the

When the steam solenoid valve 19 is opened, solar energy is simultaneously used for power generation and desalination of seawater. After the steam solenoid valve 19 was closed, all the solar energy was used for power generation. the

Claims (7)

1. A solar seawater desalination and power generation device is characterized in that it includes a concentrating solar cooker (2), a distillation tank (4), a condenser (5) and a fresh water barrel (6), and the distillation tank (4 ) is located at the focal point of the solar cooker (2) and is connected to the solar cooker (2) through a bracket, with a water inlet (11) and a steam outlet (12) at the top, and a brine with a brine exhaust solenoid valve (13) at the bottom outlet, the condenser (5) includes a sealed casing (20) and a condensation pipe (14) installed inside the sealed casing (20), the water inlet (11) of the sealed casing (20) and the water pump (15) Connection, the water outlet is connected to the water inlet (11) of the distillation tank (4), one end of the condensation pipe (14) is connected to the steam outlet (12) of the distillation tank (4) through a steam conduit, and the condensed water discharged from the other end Flow into the fresh water bucket (6) through the water pipe. 2. The solar seawater desalination and power generation device according to claim 1, characterized in that, the side wall and the bottom plate of the distillation tank (4) are provided with two layers, and the oil cavity surrounded by two layers of side walls and two layers of bottom plates It is filled with medium oil (9), and a Stirling generator is installed on the outer side wall of the distillation tank (4), and the heating pipe (17) of the Stirling generator passes through the outer wall of the distillation tank (4). Insert the generator installation hole on the side wall of the layer into the medium oil (9). 3. The solar seawater desalination and power generation device according to claim 2, characterized in that there are four Stirling generators, which are evenly distributed around the distillation tank (4). 4. The solar seawater desalination and power generation device according to claim 1 or 2, characterized in that an activated carbon tank ( 7). 5. The solar seawater desalination and power generation device according to claim 4, characterized in that a steam solenoid valve ( 19). 6. The solar seawater desalination and power generation device according to claim 5, characterized in that an oil change port (10 ). 7. The solar seawater desalination and power generation device according to claim 6, characterized in that the solar cooker (2) is provided with an intelligent sunlight tracking device.