A heating deicing system for a blade and a control method thereof, a blade and a wind turbine are provided according to the present disclosure. The heating deicing system for the blade includes an isolating device, which is arranged in a blade cavity and divides a part of the blade cavity close to a leading edge of the blade into multiple sub-cavities sequentially distributed along a length direction of the blade, and each of the sub-cavities is provided with a heating device. The heating deicing system for the blade includes a controller, which is configured to separately control opening and closing of each set of multiple sets of heating devices in each sub-cavity to heat the multiple sub-cavities in response to a blade deicing instruction.

A cooling system for a shafting and a control method therefor, and a wind turbine are provided. The cooling system includes a cold air supply unit and a rotating-shaft air blow box. The rotating-shaft air blow box is mounted on an inner surface of the stationary shaft and in the shape of a circular ring-shaped box, multiple first air blow openings are uniformly distributed in a surface, facing the rotating shaft, of the rotating-shaft air blow box in a circumferential direction, to blow cold air from the cold air supply unit to the rotating shaft. Each first air blow opening is in the shape of a slit to form a jet.

A wind power generation unit, an electric motor, and an airflow delivery for an electric motor air gap are provided. The airflow delivery device for the electric motor air gap comprises an annular air distribution chamber, wherein the annular air distribution chamber is located at at least one end of the air gap, and the annular air distribution chamber has a delivery port facing the air gap so as to deliver a hot or cold airflow to the air gap. The annular air distribution chamber is arranged at an end part of the air gap, the required airflow is introduced into the annular air distribution chamber, and the annular air distribution chamber can output the accumulated airflow to the air gap, facilitating the airflow in flowing smoothly through the air gap, such that the flow of the air gap is relatively easy to control.

A wind power generation unit, an electric motor, and an airflow delivery for an electric motor air gap are provided. The airflow delivery device for the electric motor air gap comprises an annular air distribution chamber, wherein the annular air distribution chamber is located at at least one end of the air gap, and the annular air distribution chamber has a delivery port facing the air gap so as to deliver a hot or cold airflow to the air gap. The annular air distribution chamber is arranged at an end part of the air gap, the required airflow is introduced into the annular air distribution chamber, and the annular air distribution chamber can output the accumulated airflow to the air gap, facilitating the airflow in flowing smoothly through the air gap, such that the flow of the air gap is relatively easy to control.

A heating deicing system for a blade and a control method thereof, a blade and a wind turbine are provided according to the present disclosure. The heating deicing system for the blade includes an isolating device, which is arranged in a blade cavity and divides a part of the blade cavity close to a leading edge of the blade into multiple sub-cavities sequentially distributed along a length direction of the blade, and each of the sub-cavities is provided with a heating device. The heating deicing system for the blade includes a controller, which is configured to separately control opening and closing of each set of multiple sets of heating devices in each sub-cavity to heat the multiple sub-cavities in response to a blade deicing instruction.

A cooling device for components of wind turbines, comprising at least one conduit (3) containing therein a working fluid (5) selected to change from a liquid to gas phase, and vice versa, during operation; wherein a first lower portion of each conduit (3) is inserted into a receptacle (2) through which a primary coolant fluid (10) transporting heat from a component of a wind turbine to be cooled (7) circulates, said lower portion acting as an evaporator of the working fluid (5); and wherein a second upper portion of each conduit (3) remains outside the receptacle (2), acting as a condenser of the working fluid (5).

The present invention relates to a heating installation arrangement and a method of forming the heating installation arrangement for a wind turbine blade. The heating installation arrangement (100) for a wind turbine blade comprises a sleigh (101), wherein the sleigh (101) forms a platform of the heating installation arrangement (100), the sleigh further includes a recess (109), wherein the recess (109) includes one or more connection points (110, 112) for a corresponding one or more heating apparatus.

A cooling system for a shafting and a control method therefor, and a wind turbine are provided. The cooling system includes a cold air supply unit and a rotating-shaft air blow box. The rotating-shaft air blow box is mounted on an inner surface of the stationary shaft and in the shape of a circular ring-shaped box, multiple first air blow openings are uniformly distributed in a surface, facing the rotating shaft, of the rotating-shaft air blow box in a circumferential direction, to blow cold air from the cold air supply unit to the rotating shaft. Each first air blow opening is in the shape of a slit to form a jet.

A cooling device for components of wind turbines, comprising at least one conduit (3) containing therein a working fluid (5) selected to change from a liquid to gas phase, and vice versa, during operation; wherein a first lower portion of each conduit (3) is inserted into a receptacle (2) through which a primary coolant fluid (10) transporting heat from a component of a wind turbine to be cooled (7) circulates, said lower portion acting as an evaporator of the working fluid (5); and wherein a second upper portion of each conduit (3) remains outside the receptacle (2), acting as a condenser of the working fluid (5).

The invention is provided with a support tube (101) and an inner tube (103) installed inside thereof, the diameter differentiation between the inner diameter of the support tube (101) and the outer diameter of the inner tube (103) is formed with a partitioned space for constituting a fluid path, the upper tube of the support tube (101) is installed with an electric energy application device assembly (108), and through the fluid pump (105) serially installed on the heat transfer fluid path to pump the heat transfer fluid to form a closed recycling flow, and through passing the support tube (101) of the mentioned closed recycling heat transfer fluid path and the exposed portion at the outer surface of the relevant structure, thereby enabling to perform temperature equalizing operation with the external gaseous or solid or liquid environment and/or the soil or liquid of the shallow ground natural thermal energy body.