Geothermal wind power generation system

Abstract

The utility model discloses a geothermal wind power generation system, and mainly relates to the field of geothermal wind power generation. Comprising a greenhouse body and an air suction cylinder arranged at the top of the greenhouse body, a plurality of compartments are evenly arranged in the greenhouse body in the circumferential direction of the greenhouse body, one end of each compartment is communicated with the air suction cylinder, the other end of each compartment is communicated with the outside, and the end, communicated with the outside, of each compartment is provided with an inlet door used for adjusting the area of a communicating hole of the compartment and the outside; a wind driven generator and a heating pipeline used for heating air in the compartment are arranged in the compartment, and the heating pipeline is connected with the geothermal system through a connecting pipeline to form a circulation loop. According to the utility model, active peak regulation can be realized in a range of 0%-100%, and impact on a power grid caused by load shedding of the steam turbine generator unit can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of geothermal wind power generation, in particular to a geothermal wind power generation system. Background Art

[0002] Geothermal power generation is a power generation technology that uses underground hot water and steam as power sources. Its basic principle is similar to that of thermal power generation. It is also based on the principle of energy conversion. First, geothermal energy is converted into mechanical energy, and then mechanical energy is converted into electrical energy. At present, geothermal steam power generation systems use geothermal steam to drive steam turbines to generate electricity. Its technology is mature and its operation is safe and reliable. It is the main form of geothermal power generation. However, the load shedding of steam turbine generator sets will cause an impact on the power grid, and it is difficult to actively peak within the range of 0%-100%. Utility Model Content

[0003] The utility model aims to solve the problems existing in the prior art and provide a geothermal wind power generation system which can not only actively adjust the peak value within the range of 0%-100%, but also avoid the impact on the power grid caused by the load shedding of the steam turbine generator set.

[0004] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] A geothermal wind power generation system comprises a greenhouse and an exhaust cylinder arranged on the top of the greenhouse, wherein a plurality of compartments are evenly arranged in the greenhouse along the circumference of the greenhouse, one end of the compartment is connected to the exhaust cylinder, and the other end is connected to the outside world, and an entrance door for adjusting the area of ​​the connecting hole between the compartment and the outside world is provided at the end of the compartment connected to the outside world; a wind turbine and a heating pipeline for heating the air in the compartment are arranged in the compartment, and the heating pipeline is connected to the geothermal system through a connecting pipeline to form a circulation loop.

[0006] Preferably, the greenhouse is cylindrical in shape.

[0007] Preferably, the compartment is a sector-shaped area arranged in the greenhouse.

[0008] Preferably, the heating pipeline includes a heating subsystem pipeline and a return water subsystem pipeline connected to the heating subsystem pipeline, and the connecting pipeline includes a heating main pipe connecting the heating subsystem pipeline and the geothermal system and a return water main pipe connecting the return water subsystem pipeline and the geothermal system.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. The utility model utilizes geothermal energy to heat the air in the greenhouse and drive the wind turbine to generate electricity. Compared with the traditional geothermal steam turbine generator set, the geothermal wind power generation technology involved can not only actively adjust the peak within the range of 0%-100%, but also avoid the impact on the power grid caused by the load shedding of the steam turbine generator set.

[0011] 2. Compared with conventional wind turbines, the geothermal wind power generation technology involved in this utility model has the advantages of low installation, inspection, and maintenance difficulty, low operating cost, and saves transmission lines compared with most wind power base projects, and is basically not affected by weather, wind speed, and seasons. At the same time, this utility model also has the characteristics of ensuring safe, economical, stable, and efficient operation of the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a top view of the utility model.

[0014] Numbers in the attached figure: 1. Greenhouse; 2. Exhaust cylinder; 3. Compartment; 4. Entrance door; 5. Wind turbine; 6. Geothermal system; 7. Heating subsystem pipeline; 8. Return water subsystem pipeline; 9. Heating main pipe; 10. Return water main pipe. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0016] Example: As attached Figure 1-2 As shown, the utility model is a geothermal wind power generation system, comprising a greenhouse 1, an air pump 2 arranged on the top of the greenhouse 1, the air pump 2 is cylindrical, and an integrated structure can be adopted between the air pump 2 and the greenhouse 1, and the greenhouse 1 is integrally constructed, and a plurality of compartments 3 are evenly arranged along the circumference of the greenhouse 1 in the greenhouse 1, one end of the compartment 3 is connected with the air pump 2, and the other end is connected with the outside world, and an entrance door 4 for adjusting the area of ​​the connecting hole between the compartment 3 and the outside world is provided at the end of the compartment 3 connected with the outside world, and the entrance door 4 can be an electric rolling door or an electric blind; a wind turbine 5 and a heating pipeline for heating the air in the compartment 3 are installed in the compartment 3, and the heating pipeline is connected to the geothermal system 6 through a connecting pipeline to form a circulation loop, and the geothermal system 6 supplies heat to the heating pipeline.

[0017] Preferably, the greenhouse 1 is cylindrical in shape and can be made of bricks.

[0018] Preferably, the compartment 3 is a sector-shaped area arranged in the greenhouse 1 .

[0019] Preferably, the heating pipeline includes a heating subsystem pipeline 7 and a return water subsystem pipeline 8 connected to the heating subsystem pipeline 7, and the connecting pipeline includes a heating main pipe 9 connecting the heating subsystem pipeline 7 and the geothermal system 6 and a return water main pipe 10 connecting the return water subsystem pipeline 8 and the geothermal system 6.

[0020] When the utility model is in use, before the unit is started, the entrance door 4 is gradually opened from the closed position to the fully open position. The output of the geothermal system 6 is started and gradually increased, and the air is dispersed to the heating subsystem pipe 7 in the greenhouse 1 through the heating main pipe 9 to heat the air in the greenhouse 1. After the air is heated, it is collected through the return water subsystem pipe 8 and then returned to the geothermal system 6 through the return water main pipe 10. After the lower-level air is added to the compartment 3 through the entrance door 4 and heated, it drives the wind turbine 5 to rotate and generate electricity, gradually increasing the load to stabilize at 100% load. The air is discharged to the sky through the exhaust cylinder 2.

[0021] The utility model can bear the base load in the power system and can generally generate electricity at full load. When the new energy power generation capacity is strong and the peak load of other thermal power plants reaches the lower limit, the entrance door 4 can be controlled to be closed until it is closed, and the air replenishment can be quickly reduced, the air flow rate can be reduced, and the load of the wind turbine 5 can be reduced. At the same time, the corresponding output of the geothermal system 6 is reduced, and the flow rate of the heating subsystem pipeline 7 in the greenhouse 1 is reduced through the heating main pipe 9, and the heat of the air in the greenhouse 1 is heated. The air temperature in the compartment 3 drops, the suction force of the exhaust cylinder 2 decreases, and the wind turbine 5 is turned on until the electrical load drops to 0.

[0022] If the load does not need to be reduced quickly, the entrance door 4 is kept fully open, and the corresponding output of the geothermal system 6 is reduced according to the load curve, and the heat transport of the air in the greenhouse 1 is reduced by the heating subsystem pipe 7 distributed through the heating main pipe 9. The air temperature drops, the suction force of the exhaust cylinder 2 decreases, and the air flow rate supplied to the greenhouse 1 through the entrance door 4 gradually decreases slowly, so that the electric load of the wind turbine 5 gradually decreases until it is 0. This power station can reduce the initial investment of other energy storage and reduce the operating power loss of other energy storage.

[0023] When the power grid needs to increase the load output after reducing the load, the power station output is increased first, and then the thermal power load is increased. According to the load curve, the output of the geothermal system 6 is increased, and the heat transport of the air in the greenhouse 1 is increased through the heating main pipe 9 to the heating subsystem pipe 7. The temperature of the air in the compartment 3 is increased, the suction force of the exhaust cylinder 2 is increased, and the air flow rate supplied to the greenhouse 1 through the entrance door 4 is gradually increased, so that the electric load of the wind turbine 5 is gradually increased until it reaches 100%.

[0024] Because the equipment has a certain safety margin, when the power grid load fluctuates, the utility model can quickly adjust the power station load (the load can be appropriately exceeded 100% in a short time) by controlling the opening size of the entrance door 4, so as to achieve the purpose of frequency regulation and stabilize the safe operation of the power grid. Small range load fluctuations can avoid frequent adjustment of the output of the geothermal system 6 in a short time.

[0025] The utility model can use a small power security power supply to quickly perform a black start to ensure the safe operation of the power grid. The power generation equipment part of the start-up process is similar to the normal start-up.

Claims

1. A geothermal wind power generation system, characterized in that: The invention comprises a greenhouse (1), an exhaust cylinder (2) arranged on the top of the greenhouse (1), wherein a plurality of compartments (3) are evenly arranged in the greenhouse (1) along the circumference of the greenhouse (1), one end of the compartment (3) is connected to the exhaust cylinder (2), and the other end is connected to the outside world, and an entrance door (4) for adjusting the area of ​​the connecting hole between the compartment (3) and the outside world is arranged at the end of the compartment (3) connected to the outside world; a wind turbine (5) and a heating pipeline for heating the air in the compartment (3) are arranged in the compartment (3), and the heating pipeline is connected to a geothermal system (6) through a connecting pipeline to form a circulation loop.

2. A geothermal wind power generation system according to claim 1, characterized in that: The greenhouse (1) has a cylindrical shape.

3. A geothermal wind power generation system according to claim 1, characterized in that: The compartment (3) is a sector-shaped area arranged in the greenhouse (1).

4. A geothermal wind power generation system according to claim 1, characterized in that: The heating pipeline comprises a heating subsystem pipeline (7) and a water return subsystem pipeline (8) connected to the heating subsystem pipeline (7); the connecting pipeline comprises a heating main pipe (9) connecting the heating subsystem pipeline (7) and a geothermal system (6) and a water return main pipe (10) connecting the water return subsystem pipeline (8) and the geothermal system (6).

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