CN209761618U - Energy storage type power generation system - Google Patents

Abstract

The utility model discloses an energy storage formula power generation system, its characterized in that: the water pump, the hydraulic generator, the supercharged water storage tower, the water storage tank and the water inlet and outlet pipes are included, the inner cavity of the supercharged water storage tower is a sealed cavity, and the water inlet and outlet pipes extend into the bottom of the inner cavity of the supercharged water storage tower; a water inlet of the water pump is connected with a first water inlet pipe extending into the bottom of the reservoir, and a water outlet of the water pump is communicated with a water inlet pipe and a water outlet pipe through a first water outlet pipe; the water inlet of the hydraulic generator is communicated with the water inlet and outlet pipe through a second water inlet pipe, the water outlet is connected with a second water outlet pipe, and the water outlet of the second water outlet pipe is positioned in the reservoir. The utility model discloses an energy storage formula power generation system, when being in the power consumption millet time period, the water of suction pump in with the cistern is taken out and is stored to booster-type retaining tower in, when being in the power consumption peak time period, water flows through hydraulic generator again and generates electricity to input to the electric wire netting, reached the power consumption balance of peak time period and millet time period, beneficial effect is showing, is suitable for application and popularization.

Description

Energy storage type power generation system

Technical Field

The utility model relates to an energy storage formula power generation system, more specifically the saying so especially relates to one kind and turns into the potential energy storage of water with the electric energy earlier at the power consumption millet time period, then carries out the energy storage formula power generation system of electricity generation input to electric wire netting again at the power consumption peak period.

Background

Under the influence of life and production rules of people, the social electricity consumption in different periods of a day has great difference, in the peak period of electricity consumption, the electric energy generated by a power plant is basically enough or the power plant is in an overload running state, and if the electricity consumption is continuously increased, the loss which is difficult to compensate is caused to the power plant and a power transmission line; in the electricity consumption valley stage, the generating capacity of the power plant far exceeds the social electricity consumption, and the idle of the power plant unit can be caused. In order to balance the electricity consumption of each time interval in one day as much as possible, industrial electricity of a plurality of regions is charged in a time-sharing charging mode, 9-12 points and 17-22 points in one day are specified as peak time intervals, 8 points from 22 points to the next day are specified as valley time intervals, 8 points to 9 points and 12 points to 17 points are specified as ordinary time intervals, the electricity prices of the peak time intervals, the flat time intervals and the valley time intervals are sequentially reduced, and the electricity price of the valley time intervals is much lower than that of the peak time intervals, so that enterprises with large electricity consumption are prompted to select to produce in the valley time intervals to reduce the enterprise cost.

During the valley period of power utilization, the generated energy is far larger than the power consumption, and because the larger amount of electric energy is not easy to be stored, the generated electric energy is not used up or the low-load operation of power generation equipment is caused, so that the waste of generated energy resources is caused. For a hydroelectric power station, the gravitational potential energy of a water body is converted into electric energy, and the electric energy can be converted into the gravitational potential energy of water to be stored in the valley period of power utilization and then converted into the electric energy to be released in the peak period of power utilization, so that the deficiency of the generating capacity in the peak period can be made up by using the redundant generating capacity in the valley period.

Disclosure of Invention

The utility model discloses an overcome above-mentioned technical problem's shortcoming, provide an energy storage formula power generation system.

The utility model discloses an energy storage formula power generation system, its characterized in that: the water pump, the hydraulic generator, the supercharged water storage tower, the water storage tank and the water inlet and outlet pipes are included, the inner cavity of the supercharged water storage tower is a sealed cavity, and the water inlet and outlet pipes extend into the bottom of the inner cavity of the supercharged water storage tower; a water inlet of the water pump is connected with a first water inlet pipe extending into the bottom of the reservoir, and a water outlet of the water pump is communicated with a water inlet pipe and a water outlet pipe through a first water outlet pipe; the water inlet of the hydraulic generator is communicated with the water inlet and outlet pipe through a second water inlet pipe, the water outlet is connected with a second water outlet pipe, and the water outlet of the second water outlet pipe is positioned in the reservoir.

The utility model discloses an energy storage formula power generation system, including being arranged in to letting in compressed gas's air compressor in the booster-type retaining tower, air compressor's gas outlet communicates with each other through air supply pipe and booster-type retaining tower.

The utility model discloses an energy storage formula power generation system, be provided with the first valve that carries out control to its break-make state on the second inlet tube, be provided with the second valve that carries out control to its break-make state on the first outlet pipe.

The utility model discloses an energy storage formula power generation system, among the booster-type retaining tower seted up in the massif, be provided with waterproof and airtight concrete layer on the inner wall of booster-type retaining tower.

The utility model has the advantages that: the energy storage type power generation system of the utility model pumps water in the reservoir to the booster-type water storage tower by the water pump, the water in the pressurized water storage tower can flow through the hydraulic generator to generate electricity and flow into the water storage tank, so that in the using process, when the water is in the power consumption valley period, the water in the reservoir is pumped into the booster-type water storage tower by the water pump, that is, the electric energy is converted into pressure water to be stored, when the electric energy is in the peak period, the water in the supercharged water storage tower flows through the hydraulic generator to generate electricity, and input to the power grid, and when the water pressure in the pressurized water storage tower is insufficient, the water is pressurized by the air compressor, the stored energy is transmitted to the power grid again, the deficiency of the generating capacity in the peak time period is made up by the redundant generating capacity in the valley time period, the power balance between the peak time period and the valley time period is achieved, the beneficial effect is obvious, and the method is suitable for application and popularization.

Drawings

Fig. 1 is a schematic structural diagram of the energy storage type power generation system of the present invention.

In the figure: the water pump 1, the hydraulic generator 2, the booster-type water storage tower 3, the reservoir 4, the water inlet and outlet pipe 5, the first inlet tube 6, the first outlet pipe 7, the second outlet pipe 8, the second inlet tube 9, the first valve 10, the second valve 11, the massif 12, 13 concrete layer, 14 air compression chamber, 15 air compressor, 16 air supply pipe.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

As shown in fig. 1, give the utility model discloses an energy storage formula power generation system's structural schematic diagram, it is by suction pump 1, hydraulic generator 2, booster-type retaining tower 3, cistern 4 and air compressor 15 are constituteed, suction pump 1 is arranged in taking out the water of cistern 4 to booster-type retaining tower 3, cistern 4 is located subaerial, booster-type retaining tower 3 is built among the mountain body, booster-type retaining tower 3's internal cavity is seal structure, make booster-type retaining tower 3 waterproof also ventilative, booster-type retaining tower 3 only sets up rather than the communicating business turn over water pipe 5 of internal cavity in the bottom, with realize to water injection in booster-type retaining tower 3, and the water in the booster-type retaining tower 3 flows out through business turn over water pipe 5.

The water inlet and the water outlet of the water suction pump 1 are respectively connected with a first water inlet pipe 6 and a first water outlet pipe 7, and the water inlet end of the first water inlet pipe 6 extends into the bottom of the water storage tank 4, so that the water in the water storage tank 4 can be completely pumped out by the water suction pump 1 as far as possible. The first water outlet pipe 7 is communicated with the water inlet and outlet pipe 5, and water pumped by the water suction pump 1 is pumped into the supercharged water storage tower 3 through the first water outlet pipe 7 and the water inlet and outlet pipe 5 in sequence.

The water inlet and the water outlet of the hydraulic generator 2 are respectively connected with a second water inlet pipe 9 and a second water outlet pipe 8, the water inlet end of the second water inlet pipe 9 is communicated with the water inlet and outlet pipe 5, and the water outlet end of the second water outlet pipe 8 is positioned in the water storage tank 4, so that the water in the pressurized water storage tower 3 sequentially flows into the hydraulic generator 2 through the water inlet and outlet pipe 5 and the second water inlet pipe 9 to drive the hydraulic generator 2 to generate power.

The air compressor 15 shown is used for letting in compressed gas into the booster-type water storage tower 3, and the gas outlet of the air compressor 15 is communicated with the booster-type water storage tower 3 through the gas supply pipe 16, when the water pressure in the booster-type water storage tower 3 is insufficient, then the air compressor 15 is started, and the water pressure is increased by letting in compressed gas into the booster-type water storage tower 3 so as to meet the power generation requirement.

In order to ensure that water does not enter the hydro-generator 2 during the pumping of the water pump 1 from the reservoir 4 into the pressurized reservoir 3, the second water inlet pipe 9 is shown to be provided with a first valve 10 for controlling the on-off state of the second water inlet pipe 9. In order to ensure that water cannot flow through the water suction pump 1 in the process of generating power from water in the supercharged water storage tower 3 to the hydraulic generator 2, a second valve 11 is arranged on the first water outlet pipe 7 so as to control the on-off state of the first water outlet pipe 7.

In order to store as large a quantity of electrical energy as possible, it is required that the volume of the pressurized water storage tower 3 is as large as possible, such as several hundred thousand cubic meters (e.g. 300-400 ten thousand cubic meters), which is not easy to construct, and it is difficult to construct the large-volume water storage tower, which can be excavated in the mountain 12, and after the pressurized water storage tower 3 is excavated in the mountain 12, a water-impermeable and air-impermeable concrete layer 13 should be provided on the inner surface thereof to ensure the sealing property of the pressurized water storage tower 3. The inner cavity of the supercharged water storage tower 3 is a sealed cavity, and in the process that the water pump 1 injects water into the supercharged water storage tower 3, air at the upper part of the supercharged water storage tower is compressed to form high-pressure air 14, so that the pressure of water in the supercharged water storage tower 3 is higher, and in the process that the water pump 1 pumps the water in the water storage tank 4 into the supercharged water storage tower 3, electric energy is converted into pressure water energy to be stored; when electricity is needed to be generated, water in the supercharged water storage tower 3 flows out through the water inlet and outlet pipe 5 under the action of pressure, and when the water flows into the water wheel generator 2 to generate electricity, the generated electric energy is input into a power grid.

For example, electricity prices in certain areas of Shandong are as follows, 7 a: 00-8: 30 is a flat section, the electric charge per degree is 0.617 yuan, 8: 30-11: 30 is a peak section, and the electric charge per degree is 0.9133 yuan; the ratio of 11: 30-16: 00 is a flat section, and the electric charge per degree is 0.617 yuan; 16: 00-21: 00 is a peak section, and the electric charge per degree is 0.9133 yuan; 21: 00-23: 00 is a flat section, and the electric charge per degree is 0.617 yuan; 23: 00-7 a: 00 is valley section, and the electricity charge is 0.3232 yuan per degree. The electric energy loss of the water pump 1 and the water wheel generator 2 which are combined together through the air compressor 15 is about 20%, so that water is pumped and stored in the valley section, electricity is generated in the peak section, and great economic benefit is achieved.

The utility model discloses an energy storage formula power generation system, in the use, when being in the power consumption millet period, water in 1 with the cistern 4 of suction pump is taken out to booster-type retaining tower 3, be about to electric energy conversion pressure water storage, when being in the power consumption peak period, water among the booster-type retaining tower 3 flows through hydraulic generator 2 again and generates electricity, and input to the electric wire netting, the energy that is about to the storage is carried to the electric wire netting again, realized utilizing the unnecessary generating capacity of millet period to compensate the not enough of peak period generating capacity.

Claims (4)

1. An energy storage type power generation system, characterized in that: the water pump type water storage device comprises a water pump (1), a hydraulic generator (2), a supercharged water storage tower (3), a water storage tank (4) and a water inlet and outlet pipe (5), wherein the inner cavity of the supercharged water storage tower is a sealed cavity, and the water inlet and outlet pipe extends into the bottom of the inner cavity of the supercharged water storage tower; a water inlet of the water pump is connected with a first water inlet pipe (6) extending into the bottom of the reservoir, and a water outlet of the water pump is communicated with a water inlet and outlet pipe (5) through a first water outlet pipe (7); the water inlet of the hydraulic generator is communicated with the water inlet and outlet pipe (5) through a second water inlet pipe (9), the water outlet is connected with a second water outlet pipe (8), and the water outlet of the second water outlet pipe is positioned in the reservoir.

2. An energy storing power generation system according to claim 1, wherein: comprises an air compressor (15) used for introducing compressed gas into a supercharged water storage tower (3), and an air outlet of the air compressor is communicated with the supercharged water storage tower through an air supply pipe (16).

3. An energy storing power generation system according to claim 1 or 2, wherein: the second water inlet pipe (9) is provided with a first valve (10) for controlling the on-off state of the second water inlet pipe, and the first water outlet pipe (7) is provided with a second valve (11) for controlling the on-off state of the first water outlet pipe.

4. An energy storing power generation system according to claim 1 or 2, wherein: the booster-type water storage tower (3) is arranged in a mountain body (12), and a waterproof and airtight concrete layer (13) is arranged on the inner wall of the booster-type water storage tower.