CN210919329U

CN210919329U - Hydroelectric power station is with hydraulic turbine group of being convenient for adjust rotational speed

Info

Publication number: CN210919329U
Application number: CN201921571278.9U
Authority: CN
Inventors: 李林峰; 沈春和; 黄学然
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-07-03
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a water turbine set convenient for adjusting the rotating speed for a hydropower station in the technical field of hydropower stations, a rotating wheel is arranged on a base, a water inlet pipe is arranged on the base in a penetrating way, the water outlet of the water inlet pipe faces the rotating wheel, the water inlet end of the water inlet pipe is connected with a water guide box, the water inlet of the water guide box is connected with one end of a water guide pipe, a blade shaft is fixedly inserted in an inner cavity of a guide blade, the bottom end of the blade shaft is rotatably inserted at the bottom of the inner cavity of the water guide box, an adjusting rack is slidably arranged in a rack groove, the rack groove is arranged at the top of the water guide box, fixed blocks are fixedly arranged at the top of the middle section of the adjusting rack, two groups of fixed blocks on the adjusting rack are connected through a transmission mechanism, the water inlet quantity is adjusted by adjusting the opening degree of the guide blade, the safety is high.

Description

Hydroelectric power station is with hydraulic turbine group of being convenient for adjust rotational speed

Technical Field

The utility model relates to a power station technical field specifically is a power station is with hydraulic turbine unit of being convenient for adjust rotational speed.

Background

The hydraulic turbine is a power machine for converting the energy of water flow into rotary mechanical energy, and belongs to the turbine machinery in fluid machinery. As early as 100 years before the Yuan, China has developed a rudiment of a water turbine, namely a water wheel, which is used for pumping irrigation and driving grain processing equipment. Modern water turbines are mostly installed in hydropower stations and are used for driving generators to generate electricity. In a hydropower station, water in an upstream reservoir is guided to a water turbine through a water guide pipe to push a water turbine runner to rotate so as to drive a generator to generate electricity. The water after doing work is discharged to the downstream through the tail water pipeline. The higher the water head and the larger the flow, the larger the output power of the water turbine is.

At present, water energy is used as an ecological resource, and power generation by utilizing the water energy is widely applied, but the existing hydraulic turbine set has the defects of incapability of adjusting the generated electric quantity, inconvenience in use and low safety, so that the hydraulic turbine set convenient for adjusting the rotating speed for the hydropower station is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydropower station is with hydraulic turbine group of being convenient for adjust rotational speed to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a water turbine unit convenient for adjusting the rotating speed for a hydropower station comprises a base, wherein a rotating wheel is mounted on the base, a water inlet pipe penetrates through the base, a water outlet of the water inlet pipe faces the rotating wheel, a water inlet end of the water inlet pipe is connected with a water guide box, a water inlet of the water guide box is connected with one end of a water guide pipe, a control water valve is mounted on the water guide pipe, guide blades are arranged in an inner cavity of the water guide box at equal intervals, a blade shaft is fixedly inserted in the inner cavity of the guide blades, the bottom end of the blade shaft is rotatably inserted in the bottom of the inner cavity of the water guide box, the top of the blade shaft penetrates through the top of the water guide box and is fixedly connected with an adjusting gear, adjusting racks are respectively meshed and connected to two sides of the adjusting gear, the adjusting racks are slidably arranged in rack grooves, the rack grooves are formed in the top of the water guide box, fixed blocks are, the transmission mechanism is controlled to rotate through an adjusting motor, the adjusting motor is fixedly installed at the top of a fixing frame, and the fixing frame is fixedly arranged at the top of the water guide box.

Further, drive mechanism includes the driving disc, the driving disc passes through transmission shaft and adjusting motor's output fixed connection, just the first connecting rod of driving disc lateral wall symmetry fixedly connected with, first connecting rod and second connecting rod one end swing joint, the second connecting rod other end passes through round pin axle swing joint with the fixed block.

Further, the length of the first connecting rod and the length of the second connecting rod meet the requirement that the horizontal distance of the rotation adjustment is more than or equal to one half of the circumference of the adjusting gear.

Furthermore, one end of the adjusting rack is provided with a limiting block, the length of the adjusting rack is greater than or equal to that of the top of the water guide box, and the movable distance of one end of the adjusting rack is greater than or equal to one half of the perimeter of the adjusting gear.

Further, install electromagnetic flowmeter on the inlet tube, electromagnetic flowmeter's output passes through transmission line and terminal control equipment electric connection.

Furthermore, the water outlet end of the water guide pipe and the outer side of the water inlet end of the water inlet pipe are both sleeved with a water blocking sealing ring, and the pipe diameters of the water guide pipe and the water inlet pipe are the same.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure drives the action of drive mechanism through adjusting the motor, orders about two sets of parallel arrangement's regulation rack and slides along the water guide box top, drives the adjusting gear and rotates, finally orders about the leaf axle and rotates, realizes guide vane's rotation, adjusts guide vane's the degree of opening to adjust the inflow, realize the regulation of hydraulic turbine unit rotational speed, convenient to use is swift, and the security is high.

Drawings

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

fig. 2 is a schematic structural view of the top of the water guide box of the present invention;

FIG. 3 is a schematic view of the structure of the transmission mechanism of the present invention;

fig. 4 is an enlarged schematic view of the structure at a position a of the present invention.

In the figure: 1. a base; 2. a rotating wheel; 3. a water inlet pipe; 4. a water guide tank; 5. a water conduit; 6. controlling a water valve; 7. a guide vane; 8. a leaf shaft; 9. an adjusting gear; 10. adjusting the rack; 11. a rack slot; 12. a fixed block; 13. a transmission mechanism; 131. a drive plate; 132. a first link; 133. a second link; 14. a fixed mount; 15. adjusting the motor; 16. an electromagnetic flow meter.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a water turbine set convenient for adjusting the rotating speed for a hydropower station, which adjusts the water inflow by adjusting the opening degree of a guide vane, thereby achieving the purpose of adjusting the rotating speed of the water turbine, and has convenient and rapid use and high safety;

referring to fig. 1, a rotating wheel 2 is mounted on a base 1, a water inlet pipe 3 penetrates through the base 1, a water outlet of the water inlet pipe 3 faces the rotating wheel 2, and a water inlet end of the water inlet pipe 3 is connected with a water guide tank 4;

referring to fig. 1, a water inlet of a water guiding tank 4 is connected to one end of a water guiding pipe 5, and a control water valve 6 is installed on the water guiding pipe 5 to facilitate the control of the flow of water;

referring to fig. 1, guide vanes 7 are arranged in an inner cavity of a water guide tank 4 at equal intervals, water inflow is controlled by controlling the opening degree of the guide vanes 7, a vane shaft 8 is fixedly inserted in the inner cavity of the guide vanes 7, the bottom end of the vane shaft 8 is rotatably inserted in the bottom of the inner cavity of the water guide tank 4, and the top of the vane shaft 8 penetrates through the top of the water guide tank 4 and is fixedly connected with an adjusting gear 9;

referring to fig. 4, both sides of the adjusting gear 9 are engaged with adjusting racks 10, the adjusting racks 10 are slidably disposed in rack grooves 11, the rack grooves 11 are opened at the top of the water guide tank 4, and fixing blocks 12 are fixedly disposed at the top of the middle section of the adjusting racks 10;

referring to fig. 2, the fixing blocks 12 on the two sets of adjusting racks 10 are connected by a transmission mechanism 13, the specific structure of the transmission mechanism is described below, the transmission mechanism has a transmission function between the adjusting motor 15 and the adjusting racks 10, the transmission mechanism 13 is controlled to rotate by the adjusting motor 15, the adjusting motor 15 is fixedly installed on the top of the fixing frame 14, and the fixing frame 14 is fixedly installed on the top of the water guide tank 4.

Example (b): when the rotational speed of hydraulic turbine group needs to be adjusted, start adjusting motor 15, it rotates to drive driving disc 131, drive first connecting rod 132 and the activity of second connecting rod 133 in step, make the ascending removal of horizontal direction be done to second connecting rod 133, it moves along 4 tops of water guide box to drive fixed block 12, it removes along rack groove 11 to drive adjusting rack 10, it rotates to drive adjusting gear 9 through the meshing effect, thereby drive the rotation of vane axle 8, adjust the degree of opening of guide vane 7, thereby reach the purpose of adjusting the inflow, finally reach the effect of adjusting the hydraulic turbine rotational speed.

Referring to fig. 3, the transmission mechanism 13 includes a transmission disc 131, the transmission disc 131 is fixedly connected to the output end of the adjusting motor 15 through a transmission shaft, the outer side wall of the transmission disc 131 is symmetrically and fixedly connected to a first connecting rod 132, the first connecting rod 132 is movably connected to one end of a second connecting rod 133, and the other end of the second connecting rod 133 is movably connected to the fixed block 12 through a pin.

In order that the moving distance of the second link 133 can satisfy the condition that the rotation angle of the adjusting gear 9 is equal to or greater than 180 degrees, the lengths of the first link 132 and the second link 133 satisfy the condition that the horizontal distance of the rotation adjustment is equal to or greater than one-half of the circumference of the adjusting gear 9.

One end of the adjusting rack 10 is provided with a limiting block, the length of the adjusting rack 10 is larger than or equal to that of the top of the water guide tank 4, each adjusting gear 9 can be adjusted to rotate, and the movable distance of one end of the adjusting rack 10 is larger than or equal to one half of the circumference of the adjusting gear 9.

In order to monitor the water flow in real time, the electromagnetic flowmeter 16 is installed on the water inlet pipe 3, and the output end of the electromagnetic flowmeter 16 is electrically connected with the terminal control device through a transmission line.

In order to increase the sealing performance, the water outlet end of the water guide pipe 5 and the outer side of the water inlet end of the water inlet pipe 3 are both sleeved with a water blocking sealing ring, and the pipe diameters of the water guide pipe 5 and the water inlet pipe 3 are the same.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hydropower station is with hydraulic turbine group of being convenient for adjust rotational speed, includes base (1), its characterized in that: the water guide device is characterized in that a rotating wheel (2) is installed on a base (1), a water inlet pipe (3) penetrates through the base (1), a water outlet of the water inlet pipe (3) faces the rotating wheel (2), a water inlet end of the water inlet pipe (3) is connected with a water guide box (4), a water inlet of the water guide box (4) is connected with one end of a water guide pipe (5), a control water valve (6) is installed on the water guide pipe (5), guide blades (7) are arranged in an inner cavity of the water guide box (4) at equal intervals, a blade shaft (8) is fixedly inserted in an inner cavity of each guide blade (7), the bottom end of each blade shaft (8) is rotatably inserted at the bottom of the inner cavity of the water guide box (4), the top of each blade shaft (8) penetrates through the top of the water guide box (4) and is fixedly connected with an adjusting gear (9), adjusting racks (10) are respectively engaged and connected to two sides of the adjusting gear (, rack groove (11) are seted up in guide tank (4) top, it is fixed block (12) that are provided with in section department top in regulation rack (10), two sets of connect through drive mechanism (13) between fixed block (12) on regulation rack (10), drive mechanism (13) are through adjusting motor (15) control rotation, adjust motor (15) fixed mounting in mount (14) top, mount (14) are fixed to be set up in guide tank (4) top.

2. The hydro-turbine unit for the hydropower station convenient for speed regulation according to claim 1, characterized in that: drive mechanism (13) are including driving disc (131), the output fixed connection of driving disc (131) through transmission shaft and adjusting motor (15), just driving disc (131) lateral wall symmetry fixedly connected with first connecting rod (132), first connecting rod (132) and second connecting rod (133) one end swing joint, the second connecting rod (133) other end passes through round pin axle swing joint with fixed block (12).

3. The hydro-turbine unit for the hydropower station convenient for speed regulation according to claim 2, characterized in that: the length of the first connecting rod (132) and the second connecting rod (133) meets the condition that the horizontal distance of the rotation adjustment is more than or equal to one half of the perimeter of the adjusting gear (9).

4. The hydro-turbine unit for the hydropower station convenient for speed regulation according to claim 1, characterized in that: one end of the adjusting rack (10) is provided with a limiting block, the length of the adjusting rack (10) is larger than or equal to that of the top of the water guide box (4), and the movable distance of one end of the adjusting rack (10) is larger than or equal to one half of the perimeter of the adjusting gear (9).

5. The hydro-turbine unit for the hydropower station convenient for speed regulation according to claim 1, characterized in that: install electromagnetic flowmeter (16) on inlet tube (3), the output of electromagnetic flowmeter (16) passes through transmission line and terminal control equipment electric connection.

6. The hydro-turbine unit for the hydropower station convenient for speed regulation according to claim 1, characterized in that: and water blocking sealing rings are sleeved on the outer sides of the water outlet end of the water guide pipe (5) and the water inlet end of the water inlet pipe (3), and the pipe diameters of the water guide pipe (5) and the water inlet pipe (3) are the same.