Anti-icing agent spraying device for wind driven generator blade and using method

Abstract

The invention relates to an anti-icing agent spraying device for a wind driven generator blade and a using method. The anti-icing agent spraying device comprises a spraying mechanism and a clamping crawling mechanism. The clamping crawling mechanism comprises at least two sets of rack systems, the rack systems are connected through a tensioning assembly, crawling assemblies are arranged on the inner sides of the rack systems and associated with the spraying mechanism, and a plurality of nozzle heads with different angles are arranged on the spraying mechanism. The nozzle head is installed on the telescopic distance adjusting assembly, and the telescopic distance adjusting assembly adjusts the distance between the nozzle head and the blades. The spraying mechanism is provided with a position probe sensor and a spraying condition sensor, and the position probe sensor and the spraying condition sensor are both associated with the clamping crawling mechanism. According to the anti-icing agent spraying device, automatic spraying of the anti-icing agent can be achieved, and in the spraying process, the wind driven generator can operate normally without shutdown.

Description

technical field [0001] The invention relates to an anti-icing agent spraying device for blades of a wind power generator and a using method thereof, belonging to the technical field of spraying devices. Background technique [0002] Wind power generation has developed rapidly in recent years, but in my country's humid and cold climate areas, wind turbine blades often face the problem of easy ice formation on the blade surface, which damages the aerodynamic performance of wind turbine blades and reduces power generation efficiency and working life. This problem, related technology is also constantly developing. Existing wind turbine deicing methods are mainly divided into active deicing and passive deicing. [0003] Active deicing technology is mainly divided into gas thermal, electric heating and gas-electric combination technology. The deicing and anti-icing effect of the blade can be achieved by transferring heat through the heating medium, that is, the method of preventin...

AI Technical Summary

Problems solved by technology

The disadvantages of mechanical deicing are: it is easy to cause damage to the wind turbine, and it is not suitable for large wind turbines

However, the spraying effect of the current spraying device is not good and can only achieve fixed-point spraying, that is, the spraying work is carried out on the blades by spraying on both sides of the two-way nozzles of the fixed workbench. This method cannot realize dynamic spraying, that is, a wind generator is required for spraying. The blades stop working, which affects the process of wind power generation, and has the defect of cumbersome operation and maintenance; in addition, when the existing spraying device sprays the blades, the wind direction of natural conditions will seriously affect the spraying effect. There have been related literature reports: When the wind direction When the included angle and spraying direction are greater than 30°, it will be difficult to spray on the blades, resulting in a greatly reduced spraying effect. However, wind turbines will be installed in places with strong winds, and changes in wind direction are inevitable natural phenomena. Therefore, it is necessary to solve the problem of wind direction The influence of spraying effect is also a problem that needs to be solved urgently in this field

[0005] In addition, spraying the blades by automatic spraying will also involve technical problems of the climbing mechanism. The existing tower climbing equipment includes the following types: CN111716371A uses magnetic adsorption combined with crawlers to realize crawling on the tower. This requires that the tower is made of iron material that can be magnetically adsorbed, but current wind turbine towers often use other materials, which cannot achieve magnetic adsorption. This shows that the existing climbing structure has poor versatility; CN203064069U Climbing device, where the diameter of the higher part of the tower is thinner, the climbing device cannot be kept horizontal. If it is used in the spraying process, it is easy to make the nozzle head of the spraying mechanism unable to face the blade, thereby causing spraying deviation; CN210286647U uses some steel The cable guide realizes the clamping and climbing of the tower, which has a complex structure, is inconvenient to maintain, and increases the overall weight of the equipment, making it inconvenient to use; in CN109850028A, structures such as winches and support machines are used to assist in the climbing of the tower. The structure is complicated, and if it is used on a large scale in a wind farm, the equipment cost will be high; in addition, the current conventional tower climbing structure can only achieve climbing or descending, and it cannot be used in the spraying process to adjust the angle of the nozzle head. In addition, The towers of wind turbines are often not completely regular and smooth round tables or cylinders, and the existing climbing equipment is poor in versatility, resulting in unsmooth use

Images