CN210396955U

CN210396955U - Power generation device capable of repeatedly utilizing water power

Info

Publication number: CN210396955U
Application number: CN201921091853.5U
Authority: CN
Inventors: 刘宇; 赵建; 周波
Original assignee: Sichuan Songlinhe Basin Development Co ltd
Current assignee: Sichuan Songlinhe Basin Development Co ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-04-24
Anticipated expiration: 2029-07-12

Abstract

The utility model discloses a repetitious utilization hydraulic power generation facility relates to electricity generation and energy storage technical equipment field. The utility model discloses a generator set, the outlet end intercommunication of generator set has the draft tube, the inner tube of draft tube installs the support frame, the support frame includes the solid fixed ring of being connected with the draft tube inner wall, the inner ring of solid fixed ring is provided with the fixed plate, the fixed plate is connected with solid fixed ring through the installing support, the fixed plate is installed supplementary power generation facility in the downstream side of rivers, supplementary power generation facility includes the motor room, be provided with the second generator in the motor room, the rotor end of second generator is installed the pivot, the pivot stretches out the motor room and installs the screw, be provided with the circuit passageway in the motor room, the circuit passageway communicates the outside from; in one hydroelectric power generation device, the turbine can generate electricity normally, and the potential energy of water discharged from the water outlet end of the rotating impeller can be utilized to achieve the purpose of utilizing the potential energy of the water discharge end.

Description

Power generation device capable of repeatedly utilizing water power

Technical Field

The utility model relates to a electricity generation and energy storage technical equipment field, specific theory is a repetitious utilization hydraulic power generation facility.

Background

At the hydraulic turbine power plant, the hydraulic turbine is gathered conversion device as kinetic energy and is used by a large amount, but to current hydroelectric power plant, a hydraulic turbine mostly only has a pair to rotate the impeller drive, especially can appear the water head to some drainage processes, produce the hydraulic turbine unit of potential energy, the rotating impeller of these hydraulic turbine unit is after rotating, rivers can directly discharge from the drainage end that rotates the impeller during drainage, and owing to there is the difference in height this moment, water can have higher potential energy in the play water end of rotating the impeller and compare in the back that falls, current hydroelectric power plant does not have a fine utilization scheme to this potential energy.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a power generation device using water power many times, which not only allows the turbine to generate power conventionally, but also can utilize the potential energy of the water discharged from the water outlet end of the rotary impeller, thereby achieving the purpose of utilizing the potential energy of the water discharged from the water outlet end.

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

a power generation device capable of utilizing water power repeatedly comprises a power generation unit, wherein a water outlet end of the power generation unit is communicated with a draft tube, an inner tube of the draft tube is provided with a support frame vertical to the direction of water flow, the support frame comprises a fixing ring connected with the inner wall of the draft tube, the inner ring of the fixing ring is provided with a fixing plate, the fixing plate is connected with the fixing ring through a mounting bracket, an auxiliary power generation device is mounted on the downstream side of the water flow through the fixing plate, the auxiliary power generation device comprises a motor chamber, a second power generator is arranged in the motor chamber, a rotating shaft is mounted at a rotor end of the second power generator, the rotating shaft extends out of the motor chamber along the flow direction of the water flow and is provided with a propeller at an extending end, a circuit channel is arranged in the motor chamber, and the circuit channel is communicated with, and the cable at the output end of the second generator is communicated with external electric equipment through the line channel.

Preferably, the generator set comprises a power impeller, the power impeller comprises a mixed flow impeller, the mixed flow impeller is installed in a water supply shell, a rotating shaft is installed on an upper crown of the mixed flow impeller, the rotating shaft extends out of the water supply shell and is connected with a rotor end of a main power generation device, a lower ring of the mixed flow impeller faces to a water outlet end of the water supply shell, and the water outlet end of the water supply shell is communicated with the tail water pipe.

Furthermore, a water guide cone is arranged inside an upper crown of the mixed flow impeller, the axis of the water guide cone is overlapped with the rotation axis of the upper crown, and the cone part of the water guide cone faces the tail water pipe.

Furthermore, the water inlet end of the water supply shell is opposite to the water inlet end of the mixed flow impeller, a guide plate used for guiding water flow to the mixed flow impeller is installed at the water inlet end of the water supply shell, and the water inlet end of the water supply shell is also communicated with the side wall of the water inlet pipe.

Furthermore, the centers of the fixing plates are coincided with the circular shape of the fixing ring, at least three mounting brackets are arranged, and the included angle between every two adjacent mounting brackets is not less than 60 degrees.

Furthermore, the cross section of the mounting bracket is an isosceles triangle, the vertex of the isosceles triangle is set as the top end of the mounting bracket, and the top end of the mounting bracket faces the generator set.

Furthermore, the cambered surface is drawn water awl to the one side that the fixed plate just faced rivers, the axis that the cambered surface was drawn water awl with the fixed plate is perpendicular and rather than the center coincidence, the awl point orientation that the cambered surface was drawn water awl the water cone, the centrum that the cambered surface was drawn water awl is towards its axis sunken cambered surface structure.

Compared with the common power generation water turbine, the method has the following beneficial effects: in the process of hydroelectric power generation, water flow is discharged from a water outlet end of a generator set and falls into a draft tube, the water flow falls along the vertically arranged draft tube in the falling process, passes through an inner ring gap of a fixing ring and impacts a propeller arranged in the draft tube, the potential energy of the water flow is changed from high to low in the process that the water flow is discharged from the water outlet end and strikes the propeller, the potential energy of the water flow is converted into the kinetic energy of the water flow and then strikes the propeller to rotate the propeller, so that a rotating shaft is driven to rotate, the rotor of a second generator is driven by the rotating shaft to rotate to generate power, the power generated by the second generator can be transmitted to external electric equipment through a cable in a line channel, and therefore, the same device can generate power again by utilizing the potential energy of the water at the water discharge end of the rotating impeller after the original generator set generates power by utilizing the water power, the potential energy of water at the drainage end of the rotating impeller is utilized, so that the energy source has better utilization rate.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic top view of the supporting frame in fig. 1.

Fig. 3 is a schematic cross-sectional view of the mounting bracket of fig. 1.

Wherein, 1-draft tube, 2-fixed ring, 3-fixed plate, 4-mounting bracket, 5-motor chamber, 6-second generator, 7-rotating shaft, 8-propeller, 9-line channel, 10-mixed flow impeller, 11-water supply shell, 12-rotating shaft, 13-water guide cone, 14-guide plate, 15-water inlet tube, 16-cambered surface water guide cone.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

Referring to fig. 1, 2 and 3, a power generation device using water power repeatedly comprises a power generation unit, a water outlet end of the power generation unit is communicated with a draft tube 1, an inner tube of the draft tube 1 is provided with a support frame perpendicular to a water flow direction, the support frame comprises a fixing ring 2 connected with an inner wall of the draft tube 1, an inner ring of the fixing ring 2 is provided with a fixing plate 3, the fixing plate 3 is connected with the fixing ring 2 through a mounting bracket 4, the fixing plate 3 is provided with an auxiliary power generation device at a downstream side of the water flow, the auxiliary power generation device comprises a motor chamber 5, a second generator 6 is arranged in the motor chamber 5, a rotor end of the second generator 6 is provided with a rotating shaft 7, the rotating shaft 7 extends out of the motor chamber 5 along the flow direction of the water flow and is provided with a propeller 8 at an extending end, and the rotating shaft 7 is connected with the motor, a line channel 9 is arranged in the motor chamber 5, the line channel 9 is communicated with the outside from the fixing plate 3, the mounting bracket 4, the inside of the fixing ring 2 and the side wall of the draft tube 1, and a cable at the output end of the second generator 6 is communicated with external electric equipment through the line channel 9.

In the process of hydroelectric power generation, water flow is discharged from a water outlet end of a generator set and falls into a draft tube 1, the water flow falls along the vertically arranged draft tube 1 in the falling process and passes through an inner ring gap of a fixing ring 2, the gap refers to a gap between adjacent mounting brackets 4, the falling water flow impacts a propeller 8 arranged in the draft tube 1, the potential energy of the water flow is changed from high to low in the process that the water flow is discharged from the water outlet end and strikes on the propeller 8, the potential energy of the water flow is converted into the kinetic energy of the water flow and then strikes on the propeller 8, the propeller 8 rotates, so that the propeller 8 drives a rotating shaft 7 to rotate, the rotating shaft 7 drives a rotor of a second generator 6 to rotate to generate power, and the power generated by the second generator 6 can be transmitted to external electric equipment through a cable in a line channel 9, so that after the original generator set generates the power by utilizing the water power, the same device can also utilize the potential energy of the water of the self-driven rotary impeller drainage end to generate power again, and the potential energy of the water of the rotary impeller drainage end is utilized, so that the energy has better utilization rate.

Example 2

On the basis of embodiment 1, the generator set comprises a power turbine, the power turbine comprises a mixed flow turbine 10, the mixed flow turbine 10 is installed in a water supply shell 11, a rotating shaft 12 is installed on an upper crown of the mixed flow turbine 10, the rotating shaft 12 extends out of the water supply shell 11 and is connected with a rotor end of a main power generation device, a lower ring of the mixed flow turbine 10 faces a water outlet end of the water supply shell 11, and the water outlet end of the water supply shell 11 is communicated with the tail water pipe 1; a water guide cone 13 is arranged in an upper crown of the mixed flow impeller 10, the axis of the water guide cone 13 is overlapped with the rotation axis of the upper crown, and the cone part of the water guide cone 13 faces the tail water pipe 1; the water inlet end of the water supply shell 11 is right opposite to the water inlet end of the mixed flow impeller 10, the water inlet end of the water supply shell 11 is provided with a guide plate 14 used for guiding water flow to the mixed flow impeller 10, and the water inlet end of the water supply shell 11 is also communicated with the side wall of a water inlet pipe 15.

Thus, in this embodiment, the water flow flows through the water inlet pipe 15 under its own pressure, flows to the mixed flow impeller 10 through the guide plate 14, enters from the water inlet end of the mixed flow impeller 10, and drives the mixed flow impeller 10 to rotate, so that the main generator on the generator set is driven to start generating electricity through the rotating shaft 12, the water flow is discharged from the water outlet end of the mixed flow impeller 10 after passing through the water inlet end of the mixed flow impeller 10, and enters the draft tube, meanwhile, the water guide cone 13 is installed on the inner wall of the upper crown of the mixed flow impeller 10, the cone tip of the water guide cone 13 faces the draft tube 1, so that when the water flow passes through the water inlet end of the mixed flow impeller 10 under a certain pressure, the water flow can be effectively prevented from being horizontally sprayed for a certain distance under the pressure to hit the mixed flow impeller 10, and by the water guide cone 13, when the water flow passes through the water inlet end of the mixed flow impeller 10 under, even if the water flows horizontally, after the water flow hits the conical surface of the water guide cone 13, the water flow changes the moving direction under the action of the water guide cone and changes into downward movement.

Example 3

On the basis of embodiment 2, please refer to fig. 2 again, the center of the fixing plate 3 coincides with the circle of the fixing ring 2, there are at least three mounting brackets 4, and the included angle between two adjacent mounting brackets 4 is not less than 60 °.

In this embodiment, although it is said that installing support 4 is more, it is better to the fixed effect of fixed plate 3, but when installing support 4 is too much, can cause the space between installing support 4 to reduce, thereby it is not enough to cause the water yield, cause the condition of jam, in the use of reality, set up three with installing support 4, and adjacent installing support 4 contained angle sets up to 60, under the fixed balanced stable condition that can of installation to fixed plate 3 has been guaranteed like this, the water yield of trying to increase, reduce simultaneously because of setting up too much installing support 4, cause stopping to rivers, when making it pass through installing support 4, the condition of a large amount of kinetic energy losses appears.

Example 4

On the basis of embodiment 3, please refer to fig. 1, fig. 2 and fig. 3, the cross section of the mounting bracket 4 is an isosceles triangle, the vertex of the isosceles triangle is set as the top end of the mounting bracket 4, and the top end of the mounting bracket 4 faces the generator set.

In this embodiment, when reducing rivers and falling through on installing support 4 through isosceles triangle, installing support 4 is to its resistance that produces, can reduce the loss of rivers kinetic energy when passing through installing support 4 on the one hand like this, on the other hand can reduce the power along the rivers direction that installing support 4 received, thereby let installing support 4 can bear a bigger impact for ordinary installing support 4, the installing support bottom still level sets up simultaneously, the adapting unit who provides bigger foundation area for its below like this, let it connect more firmly.

Example 5

On the basis of embodiment 4, an arc-shaped water diversion cone 16 is installed on the surface, facing the water flow, of the fixing plate 3, the axis of the arc-shaped water diversion cone 16 is perpendicular to the fixing plate 3 and coincides with the center of the arc-shaped water diversion cone 16, the cone tip of the arc-shaped water diversion cone 16 faces the water diversion cone 13, and the cone body of the arc-shaped water diversion cone 16 is of an arc-shaped structure recessed towards the axis of the arc-shaped water diversion cone.

In this embodiment, the cambered surface water guiding cone 16 is installed on the side of the fixing plate 3 facing the water flow, the cambered surface water guiding cone 16 refers to a cone with a cone body being a cambered surface, and generally, the side facing the water flow refers to the top surface of the fixing plate 3, so that the water flow on the top surface of the fixing plate 3 can be effectively divided by using the cambered surface water guiding cone 16, that is, when the cambered surface water guiding cone 16 is not provided, the water flow directly impacts on the fixing plate 3, so that not only the kinetic energy of part of the water flow is greatly reduced, but also excessive vertical force can be applied to the fixing plate 3, and after the cambered surface water guiding cone 16 is installed, the water flow can be divided by using the conical surface of the cambered surface water guiding cone 16, the water flow is directly guided to the side surface of the fixing plate 3, so that the water flow can pass through the gap between the mounting brackets 4 without, thereby greatly reduced the loss of water flow energy and reduced the vertical power that fixed plate 3 received under the condition of same discharge, improved the steadiness of fixed plate 3.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides a power generation facility of reuse water conservancy, includes generating set, generating set's play water end intercommunication has draft tube (1), its characterized in that: the inner tube of draft tube (1) and rivers direction vertically install the support frame, the support frame include with fixed ring (2) of draft tube (1) inner wall connection, the inner ring of fixed ring (2) is connected with fixed plate (3) through installing support (4), auxiliary power generation facility is installed at the downstream side of rivers in fixed plate (3), auxiliary power generation facility includes motor chamber (5), be provided with second generator (6) in motor chamber (5), pivot (7) are installed to the rotor end of second generator (6), pivot (7) stretch out along the flow direction of rivers motor chamber (5) and stretch out the end and install screw (8), be provided with line passageway (9) in motor chamber (5), line passageway (9) are followed fixed plate (3), installing support (4), The fixed ring (2) is arranged inside the tail water pipe (1), the side wall of the tail water pipe is communicated with the outside, and a cable at the output end of the second generator (6) passes through the line channel (9) to be communicated with external electric equipment.

2. The multiple use hydro-power generation device of claim 1, wherein: the generator set comprises a power impeller, the power impeller comprises a mixed flow impeller (10), the mixed flow impeller (10) is installed in a water supply shell (11), an upper crown of the mixed flow impeller (10) is provided with a rotating shaft (12), the rotating shaft (12) extends out of a rotor end of the water supply shell (11) connected with a main power generation device, a lower ring of the mixed flow impeller (10) faces to a water outlet end of the water supply shell (11), and the water outlet end of the water supply shell (11) is communicated with a draft tube (1).

3. The multiple use hydro-power generation device of claim 2, wherein: a water guide cone (13) is installed inside an upper crown of the mixed flow impeller (10), the axis of the water guide cone (13) is overlapped with the rotation axis of the upper crown, and a cone part of the water guide cone (13) faces the tail water pipe (1).

4. A multiple use hydro power plant according to claim 2 or 3, wherein: the water supply device is characterized in that the water inlet end of the water supply shell (11) is opposite to the water inlet end of the mixed flow impeller (10), a guide plate (14) used for guiding water flow to the mixed flow impeller (10) is installed at the water inlet end of the water supply shell (11), and the water inlet end of the water supply shell (11) is communicated with the side wall of the water inlet pipe (15).

5. The multiple use hydro-power generation device of claim 1, wherein: the center of the fixing plate (3) is coincided with the circular shape of the fixing ring (2), the number of the mounting supports (4) is at least three, and the included angle between every two adjacent mounting supports (4) is not less than 60 degrees.

6. The multiple use hydro power generation device according to claim 1 or 5, wherein: the cross section of the mounting bracket (4) is an isosceles triangle, and the vertex of the isosceles triangle faces the generator set.

7. A multiple use hydro-power generation device according to claim 3, wherein: the cambered surface is drawn water awl (16) just to the one side of rivers is installed in fixed plate (3), the axis of cambered surface is drawn water awl (16) with fixed plate (3) are perpendicular and coincide rather than the center, the awl point orientation of cambered surface is drawn water awl (16) water guide cone (13), the centrum of cambered surface is towards its axis sunken cambered surface structure.