CN212337518U

CN212337518U - Gravitational potential energy peak regulation power generation device with recyclable fluid medium

Info

Publication number: CN212337518U
Application number: CN202020933270.9U
Authority: CN
Inventors: 曹正国
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-01-12
Anticipated expiration: 2030-05-28

Abstract

The utility model provides a gravitational potential energy peak shaving power generation facility that fluid medium can circulate and retrieve, includes the base, be equipped with the recess on the base up end, be equipped with the rolling device in the recess, be equipped with multiunit antifriction bearing between rolling device and the recess, the rolling device internal fixation has the medium circulating device, the speed reducer of fixing on the base is connected through the belt to the rolling device, and the one end of speed reducer is connected with the motor, the medium circulating device includes hourglass form casing, is equipped with the passageway of connecting 2 hourglass hopper-shaped spaces in the hourglass form casing, be equipped with the impeller in the passageway, the impeller passes through the shaft coupling and drives speed increasing gear box drive alternator and generate. The device has the advantages of peak regulation and valley filling, converts redundant electric energy when the load of the power grid is low into high-value electric energy in the peak period of the power grid, and is suitable for emergency standby.

Description

Gravitational potential energy peak regulation power generation device with recyclable fluid medium

Technical Field

The utility model relates to a fluid medium recyclable gravitational potential energy peak shaving power generation device.

Background

With the continuous development of society, electric power systems are widely applied to industrial production and daily life in China. As it is well known that electric energy is a main energy source and power for modern industrial production, electric power has rapidly become one of important energy sources in terms of economic development and social life, and thus research on electric power systems is increasingly important. Electric energy is one of the most widely used energy sources because it is very easy to produce, transmit, distribute, convert, control, manage, etc.

The pumped storage power station pumps water to an upper reservoir by using electric energy in the low ebb period of the electric load and discharges water to a hydropower station for generating power in a lower reservoir in the peak period of the electric load. The device can convert redundant electric energy when the load of a power grid is low into high-value electric energy during the peak period of the power grid, is also suitable for frequency modulation and phase modulation, stabilizes the cycle wave and voltage of a power system, is suitable for emergency standby, and can improve the efficiency of a medium-temperature power station and a nuclear power station of the system. The construction of pumped storage power stations in China starts late, but the starting point is higher due to the after effect, and several large pumped storage power stations constructed in recent years are in the advanced level in the world. The pumped storage power station is the most reliable, most economic, long-life cycle, large capacity and the most mature technology energy storage device in the power system, and is an important component part for new energy development. The pumped storage power station is constructed in a matched manner, so that the operation and maintenance cost of the nuclear power unit can be reduced, and the service life of the nuclear power unit can be prolonged; the impact of the grid-connected operation of the wind power plant on the power grid is effectively reduced, and the operation coordination of the wind power plant and the power grid and the safety and stability of the power grid are improved.

However, the pumped storage power station has the defects of limitation on plant site selection, damage to the ecological environment, influence of dam construction on basin water circulation and long pumped storage time period of the water pump while peak regulation and valley filling, and large loss of long-distance transmission of lines due to long distance between a power generation place and users.

SUMMERY OF THE UTILITY MODEL

The utility model discloses its aim at provides a fluid medium circulated recovery's gravitational potential energy peak regulation power generation facility, the limitation of pumped storage power station to the factory site selection has been solved, and to the destruction of ecological environment, the longer shortcoming of water pump time cycle, this device can be built nearby when having peak regulation to fill in the valley, shorten the distance of power generation ground and user, reduce the loss of circuit remote transport, with the unnecessary electric energy of electric wire netting load when low, change the high-value electric energy of electric wire netting peak period into, and should be for accident reserve.

The technical scheme adopted for achieving the purpose is that the gravitational potential energy peak-shaving power generation device capable of recycling the fluid medium comprises a base, wherein a groove is formed in the upper end face of the base, a rolling device is arranged in the groove, a plurality of groups of rolling bearings are arranged between the rolling device and the groove, a medium circulation device is fixed in the rolling device, the rolling device is connected with a speed reducer fixed on the base through a belt, one end of the speed reducer is connected with a motor, the medium circulation device comprises a hourglass-shaped shell, a channel connected with 2 funnel-shaped spaces is formed in the hourglass-shaped shell, an impeller is arranged in the channel and connected with a speed-increasing gear box through a coupler, the speed-increasing gear box drives an alternating current generator to generate power periodically, and the power generated by the alternating current generator is adjusted in voltage through.

A braking device is also fixed at one side of the upper end of the base, which is positioned on the rolling device; 2 funnel-shaped space and 2 of passageway connection face on all be equipped with the connecting hole corresponding with the impeller, all be equipped with the valve on the connecting hole.

The number of the medium circulating devices is one or more, and the plurality of medium circulating devices are fixed in the rolling device at different angles with each other.

The rolling device is also connected with a diesel engine or a compressed air storage tank and is used as a device switching standby power.

One or more impellers are arranged in the channel, and the central axes of the impellers are vertical to the axis of the channel.

The impeller is made of an insulating material with a smooth surface.

Advantageous effects

Compared with the prior art, the utility model has the following advantages.

1. The device combines the hourglass with the generator, utilizes the gravity principle of the hourglass to make the fluid and the impeller drive the generator to carry out peak shaving power generation, can be built nearby while having the peak shaving and valley filling, shortens the distance between a power generation place and a user, reduces the loss of long-distance transmission of a line, converts the redundant electric energy when the load of a power grid is low into high-value electric energy in the peak period of the power grid, and is suitable for emergency standby.

2. The device has the advantages that the device is not limited by fuel energy, weather, environmental factors and the like, the starting peak-shaving power generation speed is high, and zero-pollution environment-friendly peak-shaving power generation can be really realized;

3. the device can be used for large-scale construction and can be used for surfing the net and adjusting peak according to unit capacity, and small-scale construction can be used for nearby power supply in remote mountain areas, and can also be used as a charging station along the road to make up for the problem of the cruising ability of the electric automobile.

Drawings

The present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the medium circulating apparatus according to the present invention;

FIG. 3 is a schematic structural view of a portion of the impeller connected to the generator according to the present invention;

FIG. 4 is a schematic diagram of the present invention having 2 medium circulation devices;

fig. 5 is a schematic structural view of a medium circulation device with 2 impellers according to the present invention.

Detailed Description

The present invention will be further described with reference to the following embodiments and the accompanying drawings.

The device comprises a base 1, as shown in fig. 1-5, a groove 9 is arranged on the upper end surface of the base 1, a rolling device 5 is arranged in the groove 9, and the rolling device 5 has the main function of supporting a mechanical rotating body and reducing the friction coefficient in the movement process; a plurality of groups of rolling bearings 2 are arranged between the rolling device 5 and the groove 9, a medium circulating device 4 is fixed in the rolling device 5, the rolling device 5 is connected with a speed reducer 7 fixed on the base 1 through a belt 6, one end of the speed reducer 7 is connected with a motor 8, and the motor 8 is used as the rolling device 5 to provide power; the medium circulating device 4 comprises an hourglass-shaped shell 41, a channel 43 connected with 2 funnel-shaped spaces 42 is arranged in the hourglass-shaped shell 41, an impeller 44 is arranged in the channel 43, the impeller 44 is connected with a speed-increasing gear box 11 through a coupler 10, the speed-increasing gear box 11 drives an alternating current generator 12 to generate power according to a period, the alternating current generator 12 adjusts voltage through a transformer 13 and then supplies power to users according to the requirement of a power grid, and a brake device 3 is further fixed on one side, located on the rolling device 5, of the upper end of the base 1; 2 funnel-shaped space 42 all be equipped with the connecting hole 45 corresponding with impeller 44 on 2 being connected faces that are connected with passageway 43, all be equipped with the valve on the connecting hole 45.

The number of the medium circulating devices 4 is one or more, and a plurality of medium circulating devices 4 are fixed in the rolling device 5 at different angles with each other.

The rolling device is also connected with a diesel engine or a compressed air storage tank, the emergency standby and black start functions are considered, and the rolling device is provided with a diesel engine or a compressed air storage tank and the like as the rolling device 5 for switching standby power.

One or more impellers 44 are arranged in the channel 43, and the central axes of the impellers 44 are perpendicular to the axis of the channel 43.

The connecting hole 45 is provided with a valve for controlling the flow rate of the fluid, and the valve is closed when the funnel-shaped space 42 device with the lower end filled with the fluid is switched from a low position to a high position when the medium circulating device 4 is switched to prevent the fluid medium from flowing in the switching process.

The impeller 44 is made of an insulating material with a smooth surface.

The working principle of the utility model is that the surplus electric energy when the load of the power grid is low is connected with the motor 8 according to the arrangement of the power grid company, the motor 8 drives the rolling device 5 to switch the upper end and the lower end of the medium circulating device 4, and the funnel-shaped space after the bottom of the medium circulating device 4 is filled with the fluid working medium is switched with the funnel-shaped space with the vacant top; and then according to the arrangement of a power grid company in the peak period of the power grid, opening a valve arranged on a connecting hole 45 on the funnel-shaped space at the upper end to control the flow of the fluid working medium, converting the gravitational potential energy of the fluid into mechanical energy of an impeller 44, and recovering the fluid to the funnel-shaped space at the bottom after the impeller 44 is washed to work, and finally converting the fluid into electric energy.

The working process of the utility model is that the redundant electric energy when the load of the power grid is low is provided for the motor 8, the motor 8 drives the rolling device 5 to roll in the groove 9 on the base 1 through the speed reducer 7 and the belt 6, simultaneously, the medium circulating device 4 is switched by rolling along with the rolling device 5, the valve is opened, the fluid in the funnel-shaped space 42 in the medium circulating device 4 flows downwards through the gravitational potential energy, the impeller 44 arranged in the medium circulating device 4 is washed and rotated when passing through the connecting hole 45 and the narrow channel 43, the valve control flow is arranged on the connecting hole 45, the impeller 44 is connected with the speed increasing gear box 11, the rotating speed is improved, the alternating current generator 12 is driven to generate electricity periodically, the fluid is automatically recovered to the other funnel-shaped space 42 after washing the impeller 44 to do work, when the fluid in the funnel-shaped space 42 at the upper end, then the motor 8 drives the rolling device 5, so that the funnel-shaped space 42 with the lower end filled with fluid in the medium circulating device 4 is switched with the position of the top end, then the work is continuously done to wash the impeller for power generation, and the braking device has the function of fixing the rolling device 5 when the rolling device 5 does not need to roll.

The utility model discloses in, 2 leak hopper-shaped space 42 switch the back mutually, through control flap for fluid medium erodees impeller 44 through connecting hole 45 directions, impeller 44 drives step-up gear 11 drive alternator 12 through shaft coupling 10 and generates electricity according to the cycle, the electricity that sends arranges according to the electric wire netting demand again that supply with the user nearby and use.

In the utility model, the rolling device 5 is responsible for switching the position of the medium circulating device 4, the fluid in the 2 funnel-shaped spaces 42 in the medium circulating device 4 repeatedly washes the impeller 44 from top to bottom in the same direction by means of gravitational potential energy, the connecting hole 45 is controlled by the valve, so that the fluid is always washed from top to bottom, and the rotating directions of washing the impeller 44 and the alternating current generator 12 are the same direction regardless of the position switching of the medium circulating device 4; when the alternating current generator 12 is selected, because the fluid scouring speed of the device and the switching interval period of the device are in the problems of cost and convenient maintenance, an asynchronous generator is selected, the asynchronous generator can realize variable speed and constant frequency, the existing asynchronous generator is of a rotor winding type, namely, a three-phase winding is arranged on a rotor, three-phase exciting current is electrified, a magnetic field with constant rotating speed can be formed by changing the frequency of the current and the rotating speed of the rotor, and the stator generates current with constant frequency.

According to the device, if a black start scheme is required according to actual requirements, a synchronous generator is selected and a connecting hole 45 is controlled to adjust the flow and the scouring rotating speed to maintain the generating frequency, and the synchronous generator can establish voltage by itself; because the installed capacity of the generator set of the device is not determined, the actual heat productivity of the generator is unknown, and the most conventional air cooling is temporarily selected as a ventilation cooling system of the device in consideration of economy.

In the present invention, the fluid medium theoretically can flow from the top to the bottom under the gravity condition as long as the fluid medium is a liquid medium (water, oil, etc.) or a small-particle solid medium (for example, quicksand). In consideration of fluidity, evaporation loss, and safety, the present technology uses insulating oil as a reference fluid working medium. The impeller does work through gravitational potential energy and must satisfy the following conditions: 1. the density is light, the fatigue strength and the mechanical property are optimal, and the test of multi-angle random load can be withstood; 2. inertia and vibration frequency characteristic curve of the impeller during rotation are normal, load transmitted to a power generation system is good in stability, the impeller cannot be broken under the action of centrifugal force under the out-of-control condition, output stability under the maximum flow is guaranteed, and the generator shakes normally. The impeller material must ensure a smooth surface to reduce drag and not generate excessive noise. The speed-increasing gearbox 11 is a power transmission mechanism, and realizes speed increase by using gears arranged on a plurality of gear shafts orderly arranged in the gearbox, so as to increase the revolution number of the generator to a required revolution number, namely, convert torque into rotating speed; the transformer 13 is used for adjusting and converting voltage, and meets the user requirements of each stage of service voltage.

The utility model has the problem that the motor consumes electric energy during the fluid replacement period, and compared with the power which directly drives the impeller to generate electricity, the utility model can not generate electricity continuously and needs to consume electric energy; but the motor can stop running after the device is switched, and the gravity device can still continue to work; the device can completely select redundant electric energy at the low load of the power grid to be used for fluid replacement of the device in combination with the actual situation; during peak, only the valve corresponding to the connecting hole of the device needs to be opened to control the fluid to scour the impeller to generate mechanical energy to drive the generator to generate electricity.

Claims

1. The gravitational potential energy peak regulation power generation device capable of recycling the fluid medium comprises a base (1) and is characterized in that a groove (9) is formed in the upper end face of the base (1), a rolling device (5) is arranged in the groove (9), a plurality of groups of rolling bearings (2) are arranged between the rolling device (5) and the groove (9), a medium circulating device (4) is fixed in the rolling device (5), the rolling device (5) is connected and fixed with a speed reducer (7) on the base (1) through a belt (6), one end of the speed reducer (7) is connected with a motor (8), the medium circulating device (4) comprises a hourglass-shaped shell (41), a channel (43) connected with 2 funnel-shaped spaces (42) is formed in the hourglass-shaped shell (41), an impeller (44) is arranged in the channel (43), and the impeller (44) is connected with a speed-increasing gear box (11) through a coupler, the speed-increasing gear box (11) drives the alternating current generator (12) to generate electricity according to a period, and the alternating current generator (12) adjusts voltage through the transformer (13) and then is arranged to be supplied to users nearby according to the requirements of a power grid.

2. The gravitational potential energy peak regulation power generation device capable of recycling fluid media as claimed in claim 1, characterized in that a braking device (3) is further fixed on one side of the rolling device (5) at the upper end of the base (1); 2 funnel shaped space (42) all be equipped with on 2 connection faces that are connected with passageway (43) with impeller (44) corresponding connecting hole (45), all be equipped with the valve on connecting hole (45).

3. The gravitational potential energy peak-shaving power generation device capable of recycling fluid medium according to claim 1, wherein the number of the medium circulation devices (4) is one or more, and a plurality of medium circulation devices (4) are fixed in the rolling device (5) at different angles with respect to each other.

4. The gravitational potential energy peak-shaving power generation device capable of recycling fluid medium according to claim 1, characterized in that the rolling device (5) is further connected with a diesel engine or a compressed air storage tank.

5. A gravitational potential peak shaving power generation device with recyclable fluid medium according to claim 1, characterized in that one or more impellers (44) are arranged in the channel (43), and the central axes of the impellers (44) are perpendicular to the axis of the channel (43).

6. The gravitational potential peak-shaving power generation device with recyclable fluid medium according to claim 1, characterized in that the impeller (44) is made of insulating material with smooth surface.