CN218151232U - Low water level pumped storage generator - Google Patents

Abstract

The utility model discloses a low water level pumped storage generator, relate to rivers energy conversion and be mechanical energy's power device technical field, including first casing and second casing, the inside of first casing is provided with first water turbine shaft, first water turbine shaft is close to the first turbine blade of the outside fixedly connected with of the one end of first casing, and the one end fixedly connected with second water turbine shaft of first water turbine shaft, the one end of second water turbine shaft sets up in the inside of second casing, and the inside of the one end of second water turbine shaft that is close to the second casing is provided with the turbine pivot, the turbine pivot sets up on the inner wall of second casing, the outside fixedly connected with second turbine blade of second water turbine shaft near the one end of turbine pivot, the inside intercommunication of first casing has the pipe. The utility model discloses a, adopt two turbine generator set, the technique of low water level pumped storage for the hydraulic turbine can use in low water level district, and stable and efficient carries out the water and electricity conversion, has improved the generated energy of low water level.

Description

Low water level pumped storage generator

Technical Field

The utility model relates to a power device technical field that rivers energy conversion becomes mechanical energy especially relates to a low water level pumped storage generator.

Background

In the fourteen-five period of China, the gravity basins such as the southwest region and the upstream of the yellow river are taken as the key points to develop and construct hydropower stations, the goal of anchoring more than 12 hundred million kilowatts in 2030 years is achieved, the national energy bureau is researching and drawing up the fourteen-five modern energy system plan and the sub-field energy plan, and the proportion of clean energy in the fourteen-five period to the energy consumption increment is up to 80 percent in the primary measurement and calculation.

At present, the hydroelectric generation industry of China is thriving, the application of the water turbine is more and more extensive, common water turbine is applicable to high water level power generation, generate electricity through single turbine structure, the area is great, the vertical height of water is higher, and generate electricity and need adjust motor rotation direction and corresponding rotational speed when drawing water the function service interval and separately, excessive process complicacy scheduling problem, and water turbine inner structure wearing and tearing are serious, carbon brush or sliding ring life is low, the function of generating electricity and drawing water need separately the interval and use, can not be applicable to the low water level.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a low water level pumped storage generator.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a low water level pumped storage generator, includes first casing and second casing, the inside of first casing is provided with first water turbine shaft, first water turbine shaft is close to the first turbine blade of the outside fixedly connected with of the one end of first casing, just the one end fixedly connected with second water turbine shaft of first water turbine shaft, the one end of second water turbine shaft sets up in the inside of second casing, just the inside of the one end of second water turbine shaft that is close to the second casing is provided with the turbine pivot, the turbine pivot sets up on the inner wall of second casing.

Further, a second turbine blade is fixedly connected to the outer side of one end, close to the turbine rotating shaft, of the second turbine shaft.

Further, a conduit is communicated with the inside of the first shell.

Furthermore, the bottom of the second shell is communicated with a first spray pipe, and the top of the second shell is communicated with a second spray pipe and a third spray pipe.

Further, one end of the first spray pipe close to the second shell is opposite to the center of the impeller.

Further, the turbine rotating shaft rotates in a single direction.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. this application adopts double turbine generator group, the technique of low water level pumped storage for the hydraulic turbine can use in low water level district, and stable and efficient carries out water and electricity conversion, has improved the generated energy of low water level.

2. The system can be used for generating and storing energy in a small-area low water level, solves the problem that the system can only be used in areas with concentrated hydraulic resources, and expands the application range of the hydroelectric generator.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic view of the overall structure of a low water level pumped storage generator according to the present invention;

fig. 2 is a front view of a low water level pumped storage generator according to the present invention;

fig. 3 is a left side view of a low water level pumped storage generator according to the present invention;

fig. 4 is a cross-sectional view of a low water level pumped-storage generator according to the present invention;

fig. 5 is a flow chart of the operation of the low water level pumped storage generator of the present invention.

In the figure: 1. a first housing; 2. a second housing; 3. a first nozzle; 4. a first turbine shaft; 5. a second turbine shaft; 6. a first turbine blade; 7. a turbine shaft; 8. a second turbine blade; 9. A conduit; 10. a second nozzle; 11. and a third spray pipe.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention;

example 1

Referring to fig. 1 to 4, a low water level pumped storage generator includes a first housing 1 and a second housing 2, a first water turbine shaft 4 is disposed inside the first housing 1, a first turbine blade 6 is fixedly connected to an outer side of one end of the first housing 1 close to the first water turbine shaft 4, a second water turbine shaft 5 is fixedly connected to one end of the first water turbine shaft 5, one end of the second water turbine shaft 5 is disposed inside the second housing 2, a turbine rotating shaft 7 is disposed inside one end of the second water turbine shaft 5 close to the second housing 2, the turbine rotating shaft 7 is disposed on an inner wall of the second housing 2, and the first water turbine shaft 4 and the second water turbine shaft 5 are devices for connecting the first turbine blade 6 and the second turbine blade 8 and are used for transmitting torque.

The outer side of one end, close to the turbine rotating shaft 7, of the second water turbine shaft 5 is fixedly connected with a second turbine blade 8, and the first turbine blade 6 is installed in the direction opposite to that of the second turbine blade 8, so that water pumping and power generation can be carried out simultaneously.

The interior of the first housing 1 communicates with a conduit 9.

The bottom intercommunication of second casing 2 has first spray tube 3, and the top intercommunication of second casing 2 has second spray tube 10 and third spray tube 11, and first spray tube 3 is used for extracting the water of low water level, and second spray tube 10 then can form a plurality of spray tube water sprays with third spray tube 11, utilizes the velocity of flow maximize of rivers, further improves second turbine rotational speed.

One end of the first spray pipe 3 close to the second shell 2 is opposite to the center of the impeller so that water flow drives the impeller to rotate when water is pumped, kinetic energy of water is converted into static pressure energy, and the rotating speed of the second turbine blade 8 is increased.

The turbine rotating shaft 7 rotates in a single direction to ensure the first turbine rotating direction.

Example 2

Referring to 5,1-1, the water flow entering direction of the first nozzle 3, 1-2 the water flow output direction of the second nozzle 10 and the third nozzle 11, 1-3 the rotation direction of the second turbine blade 8, 1-4 the rotation direction of the first turbine blade 6, and 1-5 the suction action direction of the duct 9;

the second shell 2 utilizes the first spray pipe 3 to extract water with low water level, water flow enters the second shell 2 from the direction of 1-1, wherein, because one end of the first spray pipe 3 is over against the center of the impeller of the water turbine, the impeller can be pushed to rotate so as to improve the rotating speed of the second turbine blade 8, then the water flow reaches the second spray pipe 10 and the third spray pipe 11 through the channel in the shell of the second shell 2, a plurality of spray pipes are formed to spray water, the flow rate of the water flow is utilized to the maximum, the rotating speed of the second turbine is further improved, and other water flows flow out through the water guide pipe; the stator and the rotor are arranged in a matched mode, the middle rotating shaft drives the first water turbine shaft 4 and the second water turbine shaft 5 to rotate, the first turbine blade 6 rotates reversely to form negative pressure inside the first shell 1 through conversion of the direction converter, water pumping suction force is formed, the first turbine is communicated with the guide pipe 9, and the suction force acts on the outside through the guide pipe 9; when the adsorption and the power generation do not need to be carried out simultaneously, the first turbine and the second turbine are controlled by the direction converter to generate power simultaneously in the same direction; when the suction and the power generation need to be carried out simultaneously, the direction converter can convert the direction to enable the second turbine to generate power, and the first turbine pumps water and adsorbs to respectively operate.

Claims (6)

1. The utility model provides a low water level pumped storage generator, includes first casing (1) and second casing (2), its characterized in that, the inside of first casing (1) is provided with first water turbine shaft (4), first water turbine shaft (4) are close to the outside fixedly connected with first turbine blade (6) of the one end of first casing (1), just the one end fixedly connected with second water turbine shaft (5) of first water turbine shaft (4), the one end of second water turbine shaft (5) sets up in the inside of second casing (2), just the inside of the one end of being close to second casing (2) of second water turbine shaft (5) is provided with turbine pivot (7), turbine pivot (7) set up on the inner wall of second casing (2).

2. A low water level pumped storage generator as claimed in claim 1, characterised in that a second turbine blade (8) is fixedly connected to the outside of the end of the second turbine shaft (5) adjacent to the turbine shaft (7).

3. A low water level pumped-storage generator according to claim 1, characterised in that the interior of the first housing (1) is connected to a conduit (9).

4. A low water level pumped-storage generator according to claim 1, characterized in that the bottom of the second housing (2) is connected to a first nozzle (3) and the top of the second housing (2) is connected to a second nozzle (10) and a third nozzle (11).

5. A low water level pumped-storage generator as claimed in claim 4, characterized in that the end of the first nozzle (3) close to the second housing (2) is directed towards the centre of the impeller.

6. A low water level pumped-storage generator according to claim 1, characterized in that the turbine shaft (7) is unidirectional in rotation.

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