CN210218187U

CN210218187U - Pneumatic efficiency test device

Info

Publication number: CN210218187U
Application number: CN201920713674.4U
Authority: CN
Inventors: Juzhang Lin; 林居章; Haiyi Yin; 尹海宜; Yaowu Liu; 刘耀武; Fenghua Zhang; 张锋华
Original assignee: LIUZHOU VLM PRESTRESSED CO Ltd
Current assignee: LIUZHOU VLM PRESTRESSED CO Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-03-31
Anticipated expiration: 2029-05-13

Abstract

The utility model discloses a pnematic efficiency test device relates to pnematic test device technical field, and the primary structure includes the support and sets up a plurality of fans on the support, during the experiment, can be through selecting the wind regime of opening the fan of different quantity in order to obtain different wind-force size to can conveniently test the aerogenerator of different power. The rectangular arrays of the fans are arranged, so that a large wind surface can be obtained; when a plurality of air boxes are combined for use, the air boxes can be controlled to obtain the required stable wind direction.

Description

Pneumatic efficiency test device

Technical Field

The utility model relates to a pnematic test device technical field especially relates to a pnematic efficiency test device.

Background

Wind power generation has been recognized worldwide as a clean energy application. Because of the influence of equipment conditions and thinking, a detection device aiming at the efficiency of the high-power wind driven generator is not available all the world (currently, the domestic testing machine only has a wind surface with the diameter of 6 meters and the square meter of about 28 meters).

The power source for generating power by the wind driven generator comes from the wind surface area of the fan blades, and according to the power source area of 5 square meters/kW, the largest 28 square meter area testing machine can only detect the efficiency (detection power) of the wind driven generator below about 6 kW. Then more than 6kW can only go to the nature to search for wind fields for testing.

The wind surface and wind speed of the natural wind field cannot be stable, so that the following problems exist: 1. the cut-in wind speed is not accurately determined. (the cut-in wind speed is the power generation and integration of the fan blade surface matched with the engine at the wind speed of more than m/s and the rotating speed.) 2, and the engine is the full power generation capacity in the state of more than m/s of the wind speed. 3. The engine generates electricity by saturation, and the self heat generation of the engine influences the electricity generation efficiency of the engine. (particularly, the rare earth permanent magnet generator has obvious difference in magnetic effect on temperature) 4. unstable wind speed under large and small time can control the grid-connected reliability of the irregular power generation size control system of the engine. 5. And the reliability of the overload protection device of the generator is improved due to the overlarge wind speed.

Disclosure of Invention

For solving the technical problem, the utility model provides a pnematic efficiency test device of size that can adjust wind conveniently provides great wind regime.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a pnematic efficiency test device, including the wind regime device, the wind regime device include the support and set up in a plurality of fans on the support.

Optionally, the fan includes a motor and fan blades, and the fan blades are disposed on a power output shaft of the motor.

Optionally, 16 to 20 fans are arranged on the bracket.

Optionally, the plurality of fans are arranged on the bracket in a rectangular array.

Optionally, the support is provided with a first ladder stand and a pedestrian frame, the first ladder stand is arranged on two sides of the support, and the pedestrian frame is arranged below each row of the fans.

Optionally, a second ladder stand is arranged on one side of each fan.

Optionally, the fan blade, the engine assembly arranged at the front end of the fan to be detected and the empennage assembly arranged at the rear end of the fan to be detected are further included, and the fan blade is arranged on the engine assembly.

Optionally, the engine assembly comprises a fan blade flange, a rotor outer ring, a first end cover, a second end cover, a stator, a magnet and a winding resistor; the first end cover and the second end cover are respectively arranged on one side of the outer ring of the rotor, the stator is sleeved on a power output shaft of the fan to be detected, and the stator is positioned between the first end cover and the second end cover; the magnet is arranged on the inner side walls of the first end cover and the second end cover, and the winding resistor is arranged outside the stator; the fan blade flange is arranged on the rotor outer ring.

Optionally, the empennage assembly comprises an empennage, and the empennage is arranged at the rear end of the fan to be detected.

The utility model discloses for prior art gain following technological effect:

the utility model provides a pnematic efficiency test device primary structure includes the support and sets up a plurality of fans on the support, during the experiment, can open the fan of different quantity in order to obtain the wind regime of different wind-force size through the selection to can conveniently test the aerogenerator of different power. The rectangular arrays of the fans are arranged, so that a large wind surface can be obtained; when a plurality of air boxes are combined for use, the air boxes can be controlled to obtain the required stable wind direction.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural view of a pneumatic performance testing apparatus of the present invention;

fig. 2 is a schematic structural view of the wind power generator of the pneumatic efficiency testing device of the present invention.

Fig. 3 is a schematic structural view of an engine assembly of the pneumatic performance testing apparatus of the present invention.

Fig. 4 is a schematic circuit diagram of the fan of the pneumatic performance testing apparatus of the present invention.

In the figure, the position of the upper end of the main shaft,

1. a wind source device; 2. a support; 3. a fan; 4. a first ladder stand; 5. a fan blade; 6. an engine assembly; 7. a hexagon bolt; 8. a housing; 9. a hexagon socket head cap screw; 10. a fuselage assembly; 11. a hexagon bolt; 12. a hexagon bolt; 13. connecting sleeves; 14. a tower pole; 15. a tail assembly; 16. a rotor outer ring; 17. a first end cap; 18. a second end cap; 19. a fan blade flange; 20. a stator; 21. 7207C single-row angular contact ball bearing; 22. a motor shaft; 23. a screw; 24. a nut; 25. a socket head cap screw; 26. a magnet; 27. countersunk head screws; 28. a coil winding; 29. and (4) screws.

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 first embodiment is as follows:

as shown in fig. 1, the present embodiment provides a pneumatic performance testing apparatus, which includes an air source apparatus 1, where the air source apparatus 1 includes a support 2 and a plurality of fans 3 disposed on the support 2.

In the present embodiment, as shown in fig. 1-4, the fan 3 includes a motor and fan blades, and the fan blades are disposed on a power output shaft of the motor. The bracket 2 is provided with 16 fans 3. The 16 fans 3 are arranged on the rack 2 in a rectangular array. The fan is characterized in that a first ladder stand 4 and a pedestrian frame are arranged on the support 2, the first ladder stand 4 is arranged on two sides of the support 2, and the pedestrian frame is arranged below each row of the fans 3. And a second ladder stand is arranged on one side of each fan 3.

In a more specific embodiment, the wind power generation device further comprises a fan blade 5, an engine assembly 6 arranged at the front end of the fan to be detected and a tail wing assembly 15 arranged at the rear end of the fan to be detected, wherein the fan blade 5 is arranged on the engine assembly 6. The motor assembly 6 comprises a fan blade flange 19, a rotor outer ring 16, a first end cover 17, a second end cover 18, a stator 20, a magnet 26 and a winding resistor; the first end cover 17 and the second end cover 18 are respectively arranged on one side of the rotor outer ring 16, the stator 20 is sleeved on a power output shaft of the fan to be detected, and the stator 20 is located between the first end cover 17 and the second end cover 18; the magnet 26 is arranged on the inner side walls of the first end cover 17 and the second end cover 18, and the winding resistor is arranged outside the stator 20; the fan blade flange 19 is arranged on the rotor outer ring 16. The empennage assembly 15 comprises an empennage which is arranged at the rear end of the fan to be detected

When the wind power generation device is used, the motor is used as a power source to drive the fan blades to move circularly to form a vortex to obtain a wind source, the motor movement speed is controlled through the variable frequency control system to obtain different stable wind speeds, the fan blades made of high-strength alloy steel structural steel plates can obtain rigidity with a larger diameter and wind taking at a higher linear speed, and a plurality of fan blades are combined for use to obtain a larger wind surface and control the wind direction in a left-right steering mode to obtain the required stable wind direction.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. The utility model provides a pnematic efficiency test device which characterized in that, includes wind regime device, wind regime device includes the support and sets up in a plurality of fans on the support.

2. The pneumatic performance testing device of claim 1, wherein the fan includes a motor and blades, and the blades are disposed on a power output shaft of the motor.

3. The pneumatic performance testing apparatus of claim 1, wherein 16 to 20 of said fans are disposed on said frame.

4. The pneumatic performance testing apparatus of claim 1, wherein the plurality of fans are disposed on the frame in a rectangular array.

5. The pneumatic performance testing device of claim 1, wherein the support is provided with a first ladder and a pedestrian frame, the first ladder is arranged on two sides of the support, and the pedestrian frame is arranged below each row of the fans.

6. The pneumatic performance testing apparatus of claim 1, wherein a second ladder is disposed on one side of each fan.

7. The pneumatic efficiency testing device according to claim 1, further comprising a fan blade, an engine component arranged at the front end of the fan to be tested, and a tail wing component arranged at the rear end of the fan to be tested, wherein the fan blade is arranged on the engine component.

8. The wind-driven performance test device of claim 7, wherein the motor assembly includes a blade flange, a rotor outer ring, a first end cap, a second end cap, a stator, a magnet, and a winding resistor; the first end cover and the second end cover are respectively arranged on one side of the outer ring of the rotor, the stator is sleeved on a power output shaft of the fan to be detected, and the stator is positioned between the first end cover and the second end cover; the magnet is arranged on the inner side walls of the first end cover and the second end cover, and the winding resistor is arranged outside the stator; the fan blade flange is arranged on the rotor outer ring.

9. The pneumatic efficiency testing device of claim 7, wherein the tail assembly includes a tail disposed at a rear end of the wind turbine to be tested.