CN114294144B - Pneumatic type wave energy power generation facility turbine comprehensive properties test system - Google Patents
Pneumatic type wave energy power generation facility turbine comprehensive properties test system Download PDFInfo
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- CN114294144B CN114294144B CN202111608771.5A CN202111608771A CN114294144B CN 114294144 B CN114294144 B CN 114294144B CN 202111608771 A CN202111608771 A CN 202111608771A CN 114294144 B CN114294144 B CN 114294144B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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Abstract
The invention belongs to the technical field of ocean energy utilization, and provides a comprehensive performance testing system for a turbine of a pneumatic wave energy power generation device. The comprehensive performance test system for the turbine of the pneumatic wave power generation device comprises a wave surface simulation system, a gas rectification system, a turbine device, a desktop supporting structure, an instrument supporting frame and a sensing analysis system; the wind box is driven by the programmable linear motor to simulate complex oscillating airflow of the pneumatic wave power generation device, and a complete sensor and a complete measuring system are configured according to various performance indexes of a turbine system, so that an effective technical evaluation means is provided for evaluation of the power generation benefit and the comprehensive performance of the pneumatic wave power generation device. The invention realizes the laboratory simulation of complex oscillating airflow in the air chamber of the pneumatic wave power generation device, thereby greatly reducing the experimental risk and cost; the assembling and disassembling process is simple and convenient, has high flexibility, and can build various testing environments aiming at different turbine sizes and testing requirements.
Description
Technical Field
The invention relates to the technical field of ocean energy utilization, in particular to a turbine comprehensive performance testing system of a pneumatic wave power generation device.
Background
Ocean wave energy is a renewable energy source with huge reserves, wide distribution and great development potential. The wave energy power generation device has various forms, and can be divided into a pneumatic type, a hydraulic type, a mechanical type, a direct-drive type and the like according to a power generation principle, wherein the pneumatic type wave energy power generation device has great potential in the aspect of industrial application due to the advantages of simple structure, few movable parts, easiness in maintenance and the like. The core structure of the pneumatic wave power generation device comprises a water surface air chamber and an air turbine, when the pneumatic wave power generation device works, the water surface in the air chamber vibrates under the action of external waves, so that gas in the air chamber is forced to pass through an air pipeline above the air chamber in a reciprocating mode, the gas pushes the turbine in the air pipeline to rotate, and the driving motor generates electricity. The comprehensive performance of the turbine directly determines the efficiency and stability of the pneumatic wave energy power generation device, and the comprehensive performance of the turbine is accurately tested and evaluated, so that the comprehensive performance of the turbine is a key link for designing and optimizing the wave energy device.
The traditional turbine test system mainly utilizes a blower or an air compressor to generate unidirectional and stable airflow, and evaluates the performance of the turbine by testing the power generation effect of the turbine driven by the stable airflow without considering the uniqueness of a pneumatic wave energy device. For a pneumatic wave power generation device, airflow for driving a turbine is generated by complex water surface oscillation in an air chamber, and the airflow has the characteristics of reciprocity, oscillation, randomness and the like and cannot be realized by a traditional turbine test system. Therefore, the invention aims to provide a mechanism capable of simulating complex oscillating airflow of a pneumatic wave power generation device, and complete sensors and measurement systems are configured according to various performance indexes of a turbine system to form a set of test system for the comprehensive performance of the turbine of the pneumatic wave power generation device.
Disclosure of Invention
The invention aims to design a set of complete comprehensive performance test system for a turbine system of a pneumatic wave energy power generation device, simulate complex oscillating airflow of the pneumatic wave energy power generation device by utilizing a programmable linear motor to drive a bellows, and configure complete sensors and measurement systems for various performance indexes of the turbine system, thereby finally providing an effective technical evaluation means for evaluating the power generation benefit and the comprehensive performance of the pneumatic wave energy power generation device.
The technical scheme of the invention is as follows:
a pneumatic wave power generation device turbine comprehensive performance testing system comprises a wave surface simulation system, a gas rectification system, a turbine device, a desktop supporting structure, an instrument supporting frame and a sensing analysis system;
the wave surface simulation system comprises a bellows rectifying connecting plate 23, a compressible bellows 24, a bellows cover 4, a push plate 3, a rigid connecting rod 2 and a programmable linear motor 1; the rigid connecting rod 2 is horizontally arranged, and two ends of the rigid connecting rod are fixedly connected with the programmable linear motor 1 and the pushing plate 3 respectively; the other side of the pushing plate 3 is contacted with a compressible air box 24; the compressible air box 24 is arranged in the air box cover 4, and the support protection and restraint in the air box cover 4 enable the compressible air box 24 to realize bidirectional linear motion; the air box rectifying connecting plates 23 are embedded in the air box cover 4; the air box rectifying connecting plate 23 is fixedly connected with an air outlet of a compressible air box 24 and a gas rectifying system; the programmable linear motor 1 drives the rigid connecting rod 2 to perform horizontal motion along with time transformation through a displacement setting signal; the rigid connecting rod 2 drives the pushing plate 3 to extrude the compressible air box 24, and gas in the compressible air box 24 is compressed and expanded according to a set rule to simulate the gas column oscillation effect caused by wave surface motion;
the gas rectification system comprises a diversion turbine connection plate 20, a level gauge 21, a diversion pipe 6, a rectification pipe 5, a rectification air box connection plate 18, a rectification diversion connection plate 19, a honeycomb pipe 22 and a single detachable diversion cylinder 36; the rectifying tubes 5 are connected with the compressible bellows 24 through rectifying bellows connecting plates 18 and bellows rectifying connecting plates 23; the honeycomb tube 22 is filled in the rectifying tube 5, and gas achieves the rectifying effect through the rectifying tube 5; the rectifying tube 5 is connected with the draft tube 6 through a rectifying and diversion connecting plate 19; the draft tube 6 has one section or a plurality of sections; the outer wall of each section of the guide pipe 6 is provided with a level meter 21 for judging the levelness of the guide pipe 6; the final section of the draft tube 6 is connected with a diversion turbine connection plate 20, and the diversion turbine connection plate 20 is connected with an air chamber 7 of the turbine device; the gas enters the turbine device through the rectifying pipe 5 and the draft pipe 6 in sequence and the diversion turbine connecting plate 20;
the turbine device comprises a gas chamber 7, turbine blades 15, a guide cone 16 and a guide fan 17; the gas enters the gas chamber 7 through the flow guide pipe 6; the turbine blades 15, the guide cone 16 and the guide fan 17 are arranged in the air chamber 7; the gas is sprayed to the turbine blades 15 in an angle under the flow guiding action of the flow guiding cone 16 and the flow guiding fan 17, so that the gas rotates to drive the connected motor to generate electricity;
the wave surface simulation system, the gas rectification system and the turbine device are respectively fixed on an independent desktop supporting structure; the desktop supporting structure comprises a desktop 33, telescopic desk legs 32, short beams 31, a threaded splicing hole 30 between desks and desk foot pulleys 34; the table surfaces 33 are provided with inter-table threaded splicing holes 30, and the table surfaces 33 are connected through the inter-table threaded splicing holes 30; short beams 31 are disposed at lateral sides of the table top 33 and connect the retractable legs 32 to enhance the structural stability of the table top 33; the telescopic table legs 32 are of telescopic rod-shaped structures, so that the laboratory staff can conveniently adjust the height of the table top support and the levelness of the whole instrument; two sides of the bottom of the telescopic table legs 32 are provided with table foot pulleys 34; the table foot pulley 34 is a pulley with a brake pad, and is convenient to move and fix.
The instrument support frame is used for carrying and fixing a measuring instrument and sequentially comprises a jaw 25, a horizontal rotating column 26, a telescopic column 27 and an adjustable fixing groove 28 from bottom to top; the jaw 25 fixes the instrument support frame on the edge of the table top 33 by adjusting a screw below; the horizontal rotating column 26 is used for ensuring that the measuring instrument above the horizontal rotating column faces any horizontal direction; the telescopic column 27 is used for adjusting the height of the instrument support; the adjustable fixing groove 28 is used for adjusting the size of the opening of the clamp according to the size of the measuring instrument to be clamped so as to fix the measuring instrument;
the sensing analysis system comprises a torque sensor 8, a laser rotating speed sensor 11, a wind speed sensor 35, a laser displacement sensor 29 and a pressure sensor 37; the two ends of the torque sensor 8 are respectively connected to the air chamber 7 and the generator 10 through the coupler 9; the laser rotating speed sensor 11 is fixed by a turbine end instrument support frame 12 and is arranged on the outer side of a turbine blade 15; by adjusting the posture of the laser rotating speed sensor 11 and the height of the instrument support frame 12 at the turbine end, laser emitted by the laser rotating speed sensor 11 is horizontally emitted to the turbine blade 15 and is used for measuring the instantaneous rotating speed of the turbine blade 15; the wind speed sensor 35 is inserted into the central shaft of the draft tube 6 through the small holes at the tops of the two ends of the draft tube 6, and the small holes are sealed after the installation is finished; the wind speed sensor 35 is used for measuring the flow speed of the rectified air and the flow speed of the air before the turbine; the laser displacement sensor 29 is fixed by the instrument support frame 14 at the push plate end, and laser emitted by the laser displacement sensor 29 horizontally shoots at the push plate 3 by adjusting the posture of the laser displacement sensor 29 and the height of the instrument support frame 14 at the push plate end so as to measure the real-time displacement of the push plate 3 and further calculate the change of the gas flux in the guide pipe 6; a pressure sensor 37 is arranged between the push plate 3 and the rigid connecting rod 2.
The air box rectifying connecting plate 23, the flow guiding turbine connecting plate 20, the rectifying air box connecting plate 18 and the rectifying flow guiding connecting plate 19 are all provided with threaded holes with the same specification at the same positions, and rubber gaskets are arranged between the adjacent connecting plates so as to ensure the air chamber tightness.
The specific use steps are as follows:
firstly, assembling the wave surface simulation system, the gas rectification system, the turbine device, the desktop support structure, the instrument support structure and the sensor analysis system according to experimental needs, and adjusting the posture of the platform to be horizontal by utilizing a level gauge 21 on the outer wall of the flow guide pipe 6;
adjusting the height of the instrument support frame and the postures of the sensors, linking the sensor lines to the data processor 13, and observing data in real time through a display screen of the data processor 13; when tests are carried out aiming at turbine devices with different sizes, an annular flow guide turbine connecting plate 20 with the outer diameter equal to the radius of the flow guide turbine connecting plate 20 and the inner diameter equal to the radius of a gas chamber 7 of the tested turbine device is manufactured, and threaded holes are formed in corresponding positions;
step three, carrying out a test, namely horizontally pushing the rigid connecting rod 2 and driving the pushing plate 3 to do reciprocating motion after the programmable linear motor 1 receives an input displacement setting signal of an experimenter; the pushing plate 3 always reciprocates in the range of the wind box cover 4; the pushing plate 3 drives the compressible air box 24 to reciprocate to extrude air; the laser displacement sensor 29 and the pressure sensor 37 measure the displacement change and stress change curve of the push plate 3 in real time; the compressible air bellow 24 is connected with the rectifying pipe 5 through an air bellow rectifying connecting plate 23; the compressible air box 24 pushes air into the rectifying pipe 5 and performs gas rectification through the honeycomb pipe 22; the rectified gas enters the draft tube 6, and the wind speed is measured by a wind speed sensor a35-1 and a wind speed sensor b35-2 in the draft tube; the guide pipe 6 is hermetically connected with the turbine device through a guide turbine connecting plate 20; the positions of threaded holes on the diversion turbine connecting plates 20 of turbine systems with different sizes are adjusted to realize that the diversion pipe 6 is tightly connected with the turbine device; after entering a turbine structure air chamber 7, the gas is emitted to a turbine blade 15 in an angle under the flow guiding action of a flow guiding cone 16 and a flow guiding fan 17, and the rotating speed of the turbine blade 15 is measured by a laser rotating speed sensor 11; the turbine blade 15 drives the bearing to rotate, the generator 10 is driven to generate power, and the torque sensor 8 measures the real-time torque between the turbine blade 15 and the rotating shaft of the generator 10.
The method for evaluating the comprehensive performance index of the turbine comprises the following steps: calculating the mechanical energy input to the system by the programmable linear motor 1 by utilizing the displacement data of the push plate 3 measured by the laser displacement sensor 29 and the pressure data measured by the pressure sensor 37; calculating mechanical energy obtained by the turbine device by using the torque measured by the torque sensor 8 and the rotating speed data measured by the laser rotating speed sensor 11, and comparing the mechanical energy with the mechanical energy input to the system by the programmable linear motor 1 to obtain the energy harvesting efficiency of the turbine device; and comparing the generated power of the motor with the mechanical energy obtained by the turbine, and calculating the generating efficiency of the turbine device.
The invention has the beneficial effects that:
(1) the method realizes laboratory simulation of complex oscillating airflow in the air chamber of the pneumatic wave power generation device, and configures a complete sensor and a complete measuring system aiming at each performance index of the turbine system, thereby forming an evaluation method of the comprehensive performance of the turbine of the pneumatic wave power generation device.
(2) Model test experiment that will need carry out in basin or actual ocean turns to indoor, greatly reduced experiment risk and cost.
(3) The test platform is in modular design, simple and convenient in assembling and disassembling process, high in flexibility and capable of building various test environments according to different turbine sizes and test requirements.
Drawings
FIG. 1 is an overall structure diagram of a turbine comprehensive performance testing system of a pneumatic wave power generation device;
FIG. 2 is a diagram of a wave front simulation system;
FIG. 3 is a block diagram of a gas rectification system;
FIG. 4 is a view of a single removable draft tube;
FIG. 5 is a left side view of the gas rectification system;
FIG. 6 is a view of the table top support structure;
FIG. 7 is a view of the instrument support structure;
FIG. 8 is a bottom block diagram of the turbine unit;
FIG. 9 is an overall view of the turbine assembly, torque sensor and generator;
fig. 10 is a conceptual diagram of a data processor of a pneumatic wave power generation device turbine comprehensive performance testing system.
In the figure: 1 a programmable linear motor; 2, a rigid connecting rod; 3 pushing the plate; 4, a wind box cover; 5, a rectifier tube; 6, a flow guide pipe; 7, an air chamber; 8, a torque sensor; 9, a coupler; 10, a generator; 11 laser rotation speed sensor; 12 turbine end instrument support frames; 13 a data processor; 14, a push plate end instrument support frame; 15 turbine blades; 16 flow guide cones; 17, a flow guide fan; 18 rectification windbox connector panels; 19 rectifying the flow guiding connection plate; 20 diversion turbine adapter plates; 21 a level gauge; 22 a honeycomb tube; 23 bellows fairing connector plates; 24 a compressible bellows; 25, clamping jaws; 26 a horizontal spin column; 27 telescopic columns; 28 adjustable fixing slots; 29 laser displacement sensor; 30 threaded splicing holes between tables; 31 short beam; 32 retractable legs; 33 a tabletop; 34 a table corner pulley; 35 a wind speed sensor; 35-1 wind speed sensor a; 35-2 wind speed sensor b; 36 single detachable guide shell; 37 pressure sensor.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and with reference to the following drawings.
The pneumatic wave power generation device turbine comprehensive performance testing system comprises a wave surface simulation system, a gas rectification system, a turbine system, a desktop supporting structure, an instrument supporting frame and a sensing analysis system. When the testing work is carried out, the programmable linear motor 1 receives a set displacement electric signal input by an experimenter and starts to horizontally reciprocate, and the rigid connecting rod 2 drives the pushing plate 3 to horizontally reciprocate. The pushing plate 3 drives the compressible bellows 24 to reciprocate, squeezing the air. Meanwhile, the laser displacement sensor 29 and the pressure sensor 37 start to collect data, and a displacement change curve and a stress change curve of the push plate 3 are measured.
After the gas enters the rectifying pipe 5, the turbulent gas is rectified by the honeycomb pipe 22. The gas enters the draft tube 6 after coming out of the rectifying tube 5, the wind speed sensor b35-2 arranged at the tail part of the draft tube 6 carries out the first wind speed measurement, and then the wind speed sensor a35-1 arranged at the head part of the draft tube 6 also carries out the first wind speed measurement. After the gas enters the gas chamber 7 of the turbine device, the high-density gas is sprayed to the turbine blades 15 through the flow guiding effect of the flow guiding cone 16 and the flow guiding fan 17, and at this time, the rotation speed sensor 11 starts to measure the rotation speed of the turbine blades 15. At the same time, the turbine blades 15 will drive the bearing to rotate, so that the generator 10 starts generating electricity, and the torque sensor 8 starts measuring synchronously.
The product design of the invention takes the following factors into full consideration:
(1) when testing is performed on turbine devices of different sizes, according to the size of each turbine device to be measured and the size of the flow guide pipe 6, an annular flow guide turbine connecting plate 20 is manufactured, wherein the outer diameter of the annular flow guide turbine connecting plate is equal to the radius of the flow guide turbine connecting plate 20, the inner diameter of the annular flow guide turbine connecting plate is equal to the radius of the gas chamber 7 of the measured turbine device, and threaded holes are formed in corresponding positions. Therefore, the test system is reused, and the test analysis can be flexibly carried out on the turbine devices with different sizes and forms.
(2) Connector plates are designed on the edge of each component, and when the test system is built, the components are positioned on the same horizontal plane by utilizing accessories such as cushion blocks.
(3) The device adopts a method that the pushing plate 3 compresses gas to simulate the driving effect of the water surface on the gas in the wave energy device, and ensures the tightness of a gas channel between the pushing plate 3 and the turbine device when the device is spliced and installed.
The construction and installation process of the pneumatic wave power generation device turbine comprehensive performance testing system is as follows:
(1) according to the requirements of design drawings, each part of the test system, such as a flow guide pipe 6, a rectifying pipe 5, a desktop supporting structure, an instrument supporting structure, a compressible air box, various pipeline box body connecting blocks and the like, is manufactured.
(2) According to the size of the target turbine device and the flow guide pipe 6, a circular ring-shaped flow guide turbine connecting plate 20 with the outer diameter equal to the radius of the flow guide turbine connecting plate 20 and the inner diameter equal to the radius of the measured turbine device air chamber 7 is manufactured, and threaded holes are formed in corresponding positions.
(3) Assembling the desktop supporting structure, fixing the instrument supporting structure at the corresponding position of the desktop 33, and manufacturing the air box cover 24.
(4) The pressure sensor 33 is connected to the push plate 3, the engaging plates at both ends of the compressible bellows 24 are hermetically connected to the compressible bellows 24, and the bellows cover 4 is installed.
(5) The connecting rigid connecting rod 2 and the programmable linear motor 1 are connected, one end of the pushing plate 3 and one end of the compressible air box 24 are connected, the rigid connecting rod 2 and the pushing plate 3 are connected, the compressible air box 24 and the rectifying tube 5 are connected, the rectifying tube 5 and the flow guide tube 6 are connected, and the flow guide tube 6 and the turbine device are connected.
(6) The remaining sensors were arranged and the airtightness of the respective parts was checked by an air blast test.
(7) Adjusting the placing position and angle of each component and the sensor, and the like. Thereby completing the installation of the system.
The specific parameters of the examples are as follows:
for the wave surface simulation system, the rigid connecting rod 2 is a stainless steel pipe with the diameter of 0.05m and the length of 0.6 m; the push plate 3, the air box cover 4 and the air box rectification connecting plate 23 are all made of organic glass plates with the thickness of 0.01m, and the cross section of the air box cover 4 is 0.5m x 0.5 m; the compressible bellows 24 used 0.3m thick heulan fiber as a skeleton material and 0.35mm thick flame retardant platinum silicone as a surface material.
The rectification bellows connection plate 18, the rectification diversion connection plate 19, the diversion pipe 6, the rectification pipe 5, the diversion turbine connection plate 20 and the single detachable diversion cylinder 36 of the gas rectification system are all made of organic glass with the thickness of 0.01m, the total length of the gas rectification system is 0.3m, and the cross section size is 0.5m x 0.5 m.
The air chamber 7, turbine blades 15, guide cone 16 and guide fan 17 of the turbine device are made of ABS resin material by 3D printing. The number, shape and inclination angle of the turbine blades 15 are the same as those of the guide fan 17. The turbine blades 15 of different turbine installations have different diameters, and the diameter of the guide fan 17 is 0.01m greater than the diameter of the turbine blades 15. The air chamber 7 is in a square shape, and the diameter of the air chamber is 0.02m larger than the external square of the flow guide fan 17.
The table top 33 of the table top supporting structure is an 18 cm shaving board, and 2mm anti-static rubber is pasted outside. The retractable legs 32 and the short beams 31 are made of 40mm by 1mm steel plates. The diameter of the threaded inter-table mating hole 30 is 0.01 m. The jaws 25, horizontal rotation posts 26, telescoping posts 27 and adjustable securing slots 28 of the instrument support structure are all made of ABS resin material. The cross section of the jaw 25 is 0.1m 0.08m and the wall thickness is 0.01 m. The horizontal rotation column 26 has a diameter and a height of 0.05m and horizontally rotates 360 degrees on the top surface of the jaw 25. The lower half part of the telescopic column 27 is a rectangular hollow column with the wall thickness of 5mm and the lower half part is 0.1m 0.05m 0.2m, and the upper half part is a rectangular hollow column with the wall thickness of 5mm and the upper half part is 0.09m 0.04m 0.2 m. The adjustable fixing groove 28 is composed of sliding blocks at two ends and a sliding rail at the bottom.
The torque sensor 8 of the sensing and analyzing system has a range of 5Nm to 100 Nm; the measuring range of the laser displacement sensor is 10mm, the range is 30+ -5mm, and the precision is 10 microns. The range of the pressure sensor is 2000N, and the precision is 0.1%. The generator 10 is a rare earth permanent magnet three-phase alternating-current generator with a rated power of 50W.
Claims (3)
1. A pneumatic wave energy power generation device turbine comprehensive performance test system is characterized by comprising a wave surface simulation system, a gas rectification system, a turbine device, a desktop supporting structure, an instrument supporting frame and a sensing analysis system;
the wave surface simulation system comprises an air box rectifying connecting plate (23), a compressible air box (24), an air box cover (4), a pushing plate (3), a rigid connecting rod (2) and a programmable linear motor (1); the rigid connecting rod (2) is horizontally arranged, and two ends of the rigid connecting rod are fixedly connected with the programmable linear motor (1) and the pushing plate (3) respectively; the other side of the push plate (3) is contacted with a compressible air box (24); the compressible air box (24) is arranged in the air box cover (4), and the support protection and restriction in the air box cover (4) enable the compressible air box (24) to realize bidirectional linear motion; the air box rectifying connecting plate (23) is embedded into the air box cover (4); the air box rectifying connecting plate (23) is fixedly connected with an air outlet of the compressible air box (24) and a gas rectifying system; the programmable linear motor (1) drives the rigid connecting rod (2) to move horizontally; the rigid connecting rod (2) drives the pushing plate (3) to extrude the compressible air box (24), and gas in the compressible air box (24) is compressed and expanded according to a set rule to simulate the gas column oscillation effect caused by wave surface motion;
the gas rectification system comprises a diversion turbine connection plate (20), a level (21), a diversion pipe (6), a rectification pipe (5), a rectification air box connection plate (18), a rectification diversion connection plate (19), a honeycomb pipe (22) and a single detachable diversion cylinder (36); the rectifying tube (5) is connected with the compressible bellows (24) through a rectifying bellows connecting plate (18) and a bellows rectifying connecting plate (23); the honeycomb tube (22) is filled in the rectifying tube (5), and gas achieves the rectifying effect through the rectifying tube (5); the rectifying tube (5) is connected with the draft tube (6) through a rectifying and diversion connecting plate (19); the flow guide pipe (6) is provided with one section or a plurality of sections; the outer wall of each section of the guide pipe (6) is provided with a level meter (21) for judging the levelness of the guide pipe (6); the final section of the draft tube (6) is connected with a diversion turbine connection plate (20), and the diversion turbine connection plate (20) is connected with a gas chamber (7) of the turbine device; the gas enters the turbine device through a rectifying pipe (5) and a guide pipe (6) in sequence and a guide turbine connecting plate (20);
the turbine device comprises a gas chamber (7), turbine blades (15), a guide cone (16) and a guide fan (17); the gas enters the gas chamber (7) from the draft tube (6); the turbine blades (15), the guide cone (16) and the guide fan (17) are arranged in the air chamber (7); the gas is sprayed to the turbine blades (15) in an angle under the flow guiding action of the flow guiding cone (16) and the flow guiding fan (17) to rotate so as to drive the connected motor to generate electricity;
the wave surface simulation system, the gas rectification system and the turbine device are respectively fixed on an independent desktop supporting structure; the desktop supporting structure comprises a desktop (33), telescopic desk legs (32), short beams (31), a threaded splicing hole (30) between desks and desk foot pulleys (34); the table top (33) side is provided with an inter-table threaded splicing hole (30), and the table tops (33) are connected through the inter-table threaded splicing hole (30); the short beam (31) is arranged at the transverse side of the desktop (33) and is connected with the telescopic table leg (32); the telescopic table legs (32) are of telescopic rod-shaped structures; two sides of the bottom of the telescopic table legs (32) are provided with table foot pulleys (34);
the instrument support frame is used for carrying and fixing a measuring instrument and sequentially comprises a jaw (25), a horizontal rotating column (26), a telescopic column (27) and an adjustable fixing groove (28) from bottom to top; the jaw (25) fixes the instrument support frame on the edge of the table top (33) through adjusting a screw below; the horizontal rotating column (26) is used for ensuring that the measuring instrument above the horizontal rotating column faces any horizontal direction; the telescopic column (27) is used for adjusting the height of the instrument support; the adjustable fixing groove (28) is used for adjusting the size of the opening of the clamp according to the size of the measuring instrument to be clamped so as to fix the measuring instrument;
the sensing analysis system comprises a torque sensor (8), a laser rotating speed sensor (11), a wind speed sensor (35), a laser displacement sensor (29) and a pressure sensor (37); the two ends of the torque sensor (8) are respectively connected to the air chamber (7) and the generator (10) through the coupler (9); the laser rotating speed sensor (11) is fixed by a turbine end instrument support frame (12) and is arranged on the outer side of a turbine blade (15); the laser emitted by the laser rotating speed sensor (11) is horizontally emitted to the turbine blade (15) by adjusting the posture of the laser rotating speed sensor (11) and the height of the instrument support frame (12) at the turbine end, and the laser is used for measuring the instantaneous rotating speed of the turbine blade (15); the wind speed sensor (35) is inserted into the central shaft of the draft tube (6) through the small holes at the tops of the two ends of the draft tube (6), and the small holes are sealed after the installation is finished; the wind speed sensor (35) is used for measuring the flow speed of the rectified air and the flow speed of the air before the turbine; the laser displacement sensor (29) is fixed by the instrument support frame (14) at the push plate end, and laser emitted by the laser displacement sensor (29) horizontally shoots to the push plate (3) by adjusting the posture of the laser displacement sensor (29) and the height of the instrument support frame (14) at the push plate end so as to measure the real-time displacement of the push plate (3) and further calculate the change of the gas flux in the guide pipe (6); a pressure sensor (37) is arranged between the push plate (3) and the rigid link (2).
2. The pneumatic wave power generation device turbine comprehensive performance testing system is characterized in that threaded holes of the same specification are formed in the same positions on the bellows rectifying connecting plate (23), the flow guiding turbine connecting plate (20), the rectifying bellows connecting plate (18) and the rectifying flow guiding connecting plate (19), and rubber gaskets are mounted between the adjacent connecting plates to guarantee air chamber tightness.
3. The pneumatic wave power generation device turbine comprehensive performance testing system is characterized by comprising the following specific using steps of:
firstly, assembling the wave surface simulation system, the gas rectification system, the turbine device, the desktop support structure, the instrument support structure and the sensor analysis system according to experimental needs, and adjusting the posture of the platform to be horizontal by utilizing a level gauge (21) on the outer wall of the guide pipe (6);
adjusting the height of the instrument support frame and the postures of the sensors, linking the sensor lines to a data processor (13), and observing data in real time through a display screen of the data processor (13); when tests are carried out aiming at turbine devices with different sizes, an annular flow guide turbine connecting plate (20) with the outer diameter equal to the radius of the flow guide turbine connecting plate (20) and the inner diameter equal to the radius of a measured turbine device air chamber (7) is manufactured, and a threaded hole is formed in the corresponding position;
step three, carrying out a test, namely horizontally pushing the rigid connecting rod (2) and driving the pushing plate (3) to do reciprocating motion after the programmable linear motor (1) receives an input displacement setting signal of an experimenter; the push plate (3) always reciprocates in the range of the wind box cover (4); the push plate (3) drives the compressible air box (24) to do reciprocating motion to extrude air; the laser displacement sensor (29) and the pressure sensor (37) measure the displacement change and stress change curve of the push plate (3) in real time; the compressible air box (24) is connected with the rectifying tube (5) through an air box rectifying connecting plate (23); the compressible air box (24) pushes air to enter the rectifying tube (5) and carries out gas rectification through the honeycomb tube (22); the rectified gas enters a flow guide pipe (6), and wind speed measurement is carried out by a wind speed sensor a (35-1) and a wind speed sensor b (35-2) in the flow guide pipe; the guide pipe (6) is hermetically connected with the turbine device through a guide turbine connecting plate (20); the turbine systems with different sizes realize the tight connection of the guide pipe (6) and the turbine device by adjusting the position of a threaded hole on the guide turbine connecting plate (20); after entering a turbine structure air chamber (7), the gas is emitted to a turbine blade (15) in an angle under the guide action of a guide cone (16) and a guide fan (17), and the rotating speed of the turbine blade (15) is measured by a laser rotating speed sensor (11); the turbine blade (15) drives the bearing to rotate to drive the generator (10) to generate electricity, and the torque sensor (8) measures the real-time torque between the turbine blade (15) and the rotating shaft of the generator (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297515A (en) * | 1998-03-13 | 2001-05-30 | 沃恩·W·诺思 | Apparatus for converting ocean wave motion to electricity |
| CN110926824A (en) * | 2019-12-09 | 2020-03-27 | 湖南湘电动力有限公司 | Device and method for measuring internal circulation wind resistance characteristic and heat dissipation capacity of generator |
| WO2020119599A1 (en) * | 2018-12-10 | 2020-06-18 | 湘潭大学 | Simulation experimental test system for turbine blade thermal barrier coating working condition |
| CN112943515A (en) * | 2021-01-06 | 2021-06-11 | 南京工程学院 | Floating oscillation water column type wave energy power generation device with air accumulator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008046931A2 (en) * | 2007-01-10 | 2008-04-24 | Shell Internationale Research Maatschappij B.V. | Method and device to measure, test and/or monitor turbine performance |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297515A (en) * | 1998-03-13 | 2001-05-30 | 沃恩·W·诺思 | Apparatus for converting ocean wave motion to electricity |
| WO2020119599A1 (en) * | 2018-12-10 | 2020-06-18 | 湘潭大学 | Simulation experimental test system for turbine blade thermal barrier coating working condition |
| CN110926824A (en) * | 2019-12-09 | 2020-03-27 | 湖南湘电动力有限公司 | Device and method for measuring internal circulation wind resistance characteristic and heat dissipation capacity of generator |
| CN112943515A (en) * | 2021-01-06 | 2021-06-11 | 南京工程学院 | Floating oscillation water column type wave energy power generation device with air accumulator |
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