CN105242206B - Vortex-induced vibration flow energy power generation test system - Google Patents

Abstract

The invention provides a vortex-induced vibration water flow power generation test system suitable for variable parameters of different sections, including a vibration device, an electric device, a top plate device and a measuring device; the top plate device includes a fixed plate; the vibration device includes two An elastic support body, a vibrator, two toothed steel structure slide bars, a bearing sliding track and two rotatable telescopic shafts; the electric device includes two DC generators, two gears and two electric storage devices; The measuring device includes a magnetic sensor, a displacement sensor and a signal collecting device. The vortex-induced vibration water flow power generation test system of the present invention is suitable for testing variable parameter water flow power generation tests under different vibrator shapes, different water flow sections, and different gear diameters. The obtained data is accurate and reliable, the structure of the test device is simple, and the test method is simple. Easy to operate.

Description

Vortex-induced vibration water flow power generation test system

technical field

The invention relates to a power generation test system, in particular to a vortex-induced vibration water current energy power generation test system.

Background technique

Vortex-induced vibration is the most common phenomenon of flow-induced vibration in the field of modern engineering. It is difficult to convert the energy of ocean current energy and water flow energy into low-velocity areas with hydraulic turbines, while ocean current energy and water flow energy are clean energy sources that can be repeated. In this way, the energy in the low flow rate range will not be well utilized, resulting in a waste of energy. The existing hydroelectric power generation test system vibrator is mostly a cylinder, and the vibration space of the power generation test system is mostly a rectangular area, and its shape is relatively simple. .

Contents of the invention

The invention provides a vortex-induced vibration water flow power generation test system suitable for variable parameters of different sections.

The vortex-induced vibration water flow power generation test system that realizes the purpose of the present invention includes a vibration device, an electric device, a top plate device and a measuring device;

The top plate device includes a fixed plate, two parallel sliding rails are arranged on the fixed plate, and a fixed groove is arranged in the middle of one side of the fixed plate;

The vibration device includes two elastic supports, a vibrator, two toothed steel structure slide bars, a bearing sliding track and two rotatable telescopic shafts; one end of the elastic supporting body is fixedly connected to the bearing sliding track, The other end is fixed on the fixed plate; a rotatable telescopic shaft is movably connected to each of the bearing moving tracks, and a vibrator is fixed on the two rotatable telescopic shafts; one end of the toothed steel structure slide bar is installed on the fixed on the sliding track of the board;

The electric device includes two direct current generators, two gears and two accumulators, the direct current generators are fixed on the elastic support, one end of the direct current generator is fixed to the gears, and the gears are connected to the toothed steel The structural slide bar is engaged; the current output terminal of the DC generator is connected with the storage device, and the storage device is located on the fixed plate;

The measuring device includes a magnetic sensor, a displacement sensor and a signal acquisition device, the displacement sensor is fixed under the fixing groove of the fixing plate, and is located between two toothed steel structure slide bars; the magnetic sensor is fixed on the displacement sensor , the displacement sensor is connected with the signal acquisition device.

The inside of the vibrator is hollow, and a weight can be added inside the vibrator. The inside of the vibrator is a hollow body, and weights can be added according to the needs of the experiment to change the quality parameters of the cylinder;

The rotatable telescopic shaft is fixed on the bearing sliding track through the first fixing bolt and the stop card, and the vibrator is fixed on the rotatable telescopic shaft through the second fixing bolt.

The distance between the two toothed steel structure slide bars is limited by the supporting mechanism bar. The supporting structure bar can support and prevent the deformation of the motor from affecting the test error during the sliding process.

The tooth-shaped steel structure slide bar is hung on the sliding track of the fixed plate through the fixing screw rod, and the fixing screw rod is fixed on the sliding track through the stop card.

The beneficial effects of the vortex-induced vibration water flow power generation test system of the present invention are as follows:

The vortex-induced vibration water flow power generation test system of the present invention is suitable for testing variable parameter water flow power generation tests under different vibrator shapes, different water flow sections, and different gear diameters. The obtained data is accurate and reliable, the structure of the test device is simple, and the test method is simple. Easy to operate.

Description of drawings

FIG. 1 is a schematic structural view of a vortex-induced vibration water flow power generation test system of the present invention.

Fig. 2 is a top view of the fixing plate of the vortex-induced vibration water flow power generation test system of the present invention.

Detailed ways

The vortex-induced vibration water flow power generation test system of the present invention includes a vibration device, an electric device, a top plate device and a measuring device;

As shown in Figure 2, the top plate device includes a fixed plate 16, two parallel sliding rails 20 are arranged on the fixed plate 16, and a fixed groove 19 is provided in the middle of one side of the fixed plate 16;

As shown in Figure 1, the vibrating device includes two elastic supports 7, a vibrator 12, two toothed steel structure slide bars 3, two bearing sliding tracks 8 and two rotatable telescopic shafts 15; One end of the elastic support body 7 is fixedly connected to the bearing sliding track 8, and the other end is fixed on the fixed plate 16; each of the bearing moving tracks 8 is movably connected to a rotatable telescopic shaft 15, and the two rotatable telescopic shafts 15 A vibrator 12 is fixed on the top; one end of the toothed steel structure slide bar 3 is installed on the sliding track 20 of the fixed plate 16;

The electric device includes two DC generators 1, two gears 4 and two storage devices 2, the DC generators 1 are fixed on the elastic support body 7, one end of the DC generator 1 is fixed to the gears 4, The gear 4 meshes with the toothed steel structure slide bar 3; the current output end of the DC generator 1 is connected to the electric storage 2, and the electric storage 2 is located on the fixed plate 16; Under the action of vortex detachment, uneven pressure will be generated on both sides, resulting in periodic reciprocating motion back and forth in the lateral direction. The gear 4 is cut along the toothed steel structure slide bar 3 under the lift force generated by the periodic motion, and the DC generator 1 The current is generated by cutting the gear 4 and the toothed steel structure slide bar 3, and the generated current is stored by the storage device 2;

The measuring device comprises a magnetic sensor 5, a displacement sensor 6 and a signal acquisition device 14, and the displacement sensor 6 is fixed below the fixed groove 19 of the fixed plate 16, between two toothed steel structure slide bars 3; The magnetic sensor 5 is located on the displacement sensor 6 , and the displacement sensor 6 is connected with the signal acquisition device 14 . The displacement sensor 6 is cut by the magnetic sensor 5 to output the signal and collected by the signal acquisition device 14 so as to analyze and study the hydropower generation efficiency under different parameters, and finally obtain the optimal vibrator shape, hydraulic section and gear diameter;

The inside of the vibrator 12 is hollow, and a weight can be added in the vibrator 12 . The inside of the vibrator 12 is a hollow body, and weights can be added according to the needs of the experiment to change the quality parameters of the cylinder;

The rotatable telescopic shaft 15 is fixed on the bearing sliding track 8 through the first fixing bolt 9 and the stop card 13 , and the vibrator 12 is fixed on the rotatable telescopic shaft 15 through the second fixing bolt 11 .

The distance between the two toothed steel structure slide bars 3 is limited by the supporting mechanism bar 17 . The supporting structure bar 17 can support and prevent the deformation of the motor from affecting the test error during the sliding process.

The toothed steel structure sliding bar 3 is hung on the sliding track 20 of the fixed plate 16 through the fixing screw 18 , and the fixing screw 18 is fixed on the sliding track 20 through the stopper 21 .

The above-described embodiments are only descriptions of preferred implementations of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various technical solutions of the present invention can be made by ordinary engineers and technicians in the field. Variations and improvements should fall within the scope of protection defined by the claims of the present invention.

Claims (5)

1. Vortex-induced vibration water flow power generation test system, characterized in that it includes a vibration device, an electric device, a roof device and a measuring device; The top plate device includes a fixed plate, two parallel sliding rails are arranged on the fixed plate, and a fixed groove is arranged in the middle of one side of the fixed plate; The vibration device includes two elastic supports, a vibrator, two toothed steel structure slide bars, a bearing sliding track and two rotatable telescopic shafts; one end of the elastic supporting body is fixedly connected to the bearing sliding track, The other end is fixed on the fixed plate; a rotatable telescopic shaft is movably connected to each of the bearing moving tracks, and a vibrator is fixed on the two rotatable telescopic shafts; one end of the toothed steel structure slide bar is installed on the fixed on the sliding track of the board; The electric device includes two direct current generators, two gears and two accumulators, the direct current generators are fixed on the elastic support, one end of the direct current generator is fixed to the gears, and the gears are connected to the toothed steel The structural slide bar is engaged; the current output terminal of the DC generator is connected with the storage device, and the storage device is located on the fixed plate; The measuring device includes a magnetic sensor, a displacement sensor and a signal acquisition device, the displacement sensor is fixed under the fixing groove of the fixing plate, and is located between two toothed steel structure slide bars; the magnetic sensor is fixed on the displacement sensor , the displacement sensor is connected with the signal acquisition device. 2. The vortex-induced vibration water flow power generation test system according to claim 1, characterized in that: the inside of the vibrator is hollow, and a weight can be added inside the vibrator. 3. The vortex-induced vibration water flow power generation test system according to claim 1, characterized in that: the rotatable telescopic shaft is fixed on the bearing sliding track through the first fixing bolt and the stop card, and the vibrator passes through the first Two fixing bolts are fixed on the rotatable telescopic shaft. 4. The vortex-induced vibration water current energy power generation test system according to claim 1, characterized in that: the distance between the two toothed steel structure slide bars is defined by the supporting mechanism bar . 5. The vortex-induced vibration water current energy power generation test system according to any one of claims 1 to 4, characterized in that: the toothed steel structure slide bar is hung on the sliding track of the fixed plate through a fixed screw, and passed through a stop The clip secures the fixing screw to the slide rail.