Anti-icing wind driven generator blade

Abstract

The utility model provides an anti-icing wind driven generator blade which comprises a generator cabin, a flow guide cover and an engine blade, an air pump is arranged in the generator cabin, an installation hub is arranged in the flow guide cover, and the engine blade is movably installed on the generator cabin through the installation hub. Air bag strips are installed on the outer sides of the engine blades in a surrounding and attaching mode. When gas input from the mounting head and gas input from the gas collecting basket meet in the air bag strips, vibrating diaphragm operation is generated on the surfaces of the air bag strips, the air bag strips are expanded through gas entering from the inner end and the outer end, the generated vibrating diaphragm operation is achieved, and then ice condensed on the surfaces of engine blades is broken; and meanwhile, under blowing of wind power and rotation of engine blades, ice bodies fall off from the engine blades, so that the situation that water vapor is recondensed into ice due to the fact that the temperature difference between the engine blades and air is too large after deicing is prevented, meanwhile, the deicing efficiency is improved, and use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation equipment, in particular to an anti-icing wind power generator blade. Background Art

[0002] In cold climates, when the temperature is low and the relative humidity is high, if water vapor or rainwater adheres to the surface of wind turbine blades, the blades are likely to freeze in the low temperature environment. When the blades freeze, the efficiency of the wind turbine is easily reduced and may even cause mechanical failure. Therefore, wind turbines need to take de-icing measures to prevent freezing in cold climates.

[0003] The "blade deicing device, impeller assembly and wind turbine generator set" described in patent application number "CN202223532152.5" is a technical solution in which the blade deicing device only heats the iced blades, and turns off the heating unit in time after deicing is completed to prevent overheating of unfrozen or deiced blades.

[0004] However, the applicant believes that the device has the following problems when in use. Since the icing of generator blades mostly occurs in winter or cold areas, after the blades are heated and de-iced, the temperature difference between the hot blades and the cold air is large, which can easily cause the water vapor in the air to re-adhere and condense on the surface of the blades and freeze. At the same time, long-term heating and de-icing not only increases energy consumption, but also easily causes equipment aging, resulting in poor de-icing effect.

[0005] For this purpose, we provide an anti-icing wind turbine blade. Utility Model Content

[0006] The main purpose of the utility model is to provide an anti-icing wind turbine blade, which can effectively solve the problem proposed in the background technology that the temperature difference between the hot blade and the cold air is large, which easily causes the water vapor in the air to re-attach and condense on the surface of the blade and freeze. At the same time, long-term heating and deicing not only increases energy consumption, but also easily causes equipment aging.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] An anti-icing wind turbine blade comprises a generator compartment, a shroud and an engine blade, wherein an air pump is arranged inside the generator compartment, a mounting hub is arranged inside the shroud, and the engine blade is movably mounted with the generator compartment via the mounting hub, and an air bag strip is mounted around and in close contact with the outer side of the engine blade, and in the engine blade, the air bag strip is connected with the air pump in the generator compartment via the mounting hub, and the engine blade is divided into an outer end and an inner end, wherein the outer end is provided with an air collecting basket, and the air collecting basket is movably mounted in the engine blade, and an air inlet is arranged on one side of the air collecting basket.

[0009] In the above scheme, preferably, a mounting tower is provided below the generator compartment, and the mounting tower is movably connected to the generator compartment, and the mounting tower is vertically installed on the ground to support the generator compartment.

[0010] In the above scheme, preferably, the deflector is installed at one end of the generator compartment, and the engine blades are equidistantly installed around the outside of the deflector, and a mounting head is provided at the inner end, and the mounting head is fixedly connected to the engine blades.

[0011] In the above solution, preferably, the mounting head is embedded and installed in the mounting hub, and the airbag strip is connected to the mounting hub through the mounting head.

[0012] In the above scheme, preferably, the air collecting basket is installed on the outer end of the engine blade, the mounting head is installed on the inner end of the engine blade, and the mounting head and the air collecting basket are both connected to the airbag strip.

[0013] In the above scheme, preferably, the airbag strip is installed in an arc shape to fit the outer surface of the engine blade, and the expansion radius of the airbag strip is equal.

[0014] Beneficial Effects

[0015] Compared with the prior art, the utility model has the following beneficial effects: the anti-icing wind turbine blades are provided with devices such as airbag strips, air collecting baskets and air inlets. When the gas input from the mounting head meets the gas input from the air collecting basket in the airbag strips, a diaphragm operation is generated on the surface of the airbag strips. The gas entering from the inner and outer ends causes the airbag strips to expand and generate a diaphragm operation, thereby breaking up the ice condensed on the surface of the engine blades. At the same time, under the blowing of wind and the rotation of the engine blades, the ice falls off the engine blades, thereby preventing the water vapor from re-condensing into ice due to the large temperature difference between the engine blades and the air after deicing. At the same time, the deicing efficiency is improved, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the local structure of the air deflector of the utility model.

[0019] Figure 3 It is a schematic diagram of the local structure of the engine blade of the utility model.

[0020] Figure 4 It is a schematic diagram of the plane cross-sectional structure of the engine blade of the utility model.

[0021] Figure 5 For this utility model Figure 3 A schematic diagram of the enlarged local structure in the middle.

[0022] Figure 1-Figure 5 In: 1. Mounting tower; 2. Generator compartment; 3. Fairing; 301. Mounting hub; 4. Engine blades; 401. Airbag strip; 402. Mounting head; 403. Air collecting basket; 404. Air inlet. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-Figure 5 As shown, in this embodiment, an anti-icing wind turbine blade includes a generator cabin 2, a shroud 3 and an engine blade 4, characterized in that: an air pump is provided inside the generator cabin 2, a mounting hub 301 is provided inside the shroud 3, and the engine blade 4 is movably mounted with the generator cabin 2 through the mounting hub 301, and the outer side of the engine blade 4 is surrounded and fitted with an air bag strip 401, in the engine blade 4, the air bag strip 401 is connected with the air pump in the generator cabin 2 through the mounting hub 301, and the engine blade 4 is divided into an outer end and an inner end, wherein an air collecting basket 403 is provided at the outer end, and the air collecting basket 403 is movably mounted in the engine blade 4, and an air inlet 404 is provided on one side of the air collecting basket 403, and the air collecting basket 403 is mounted on the outer end of the engine blade 4, the shroud 3 is mounted at one end of the generator cabin 2, and the engine blade 4 is equidistantly mounted around the outer side of the shroud 3;

[0025] Specifically, through this arrangement, the engine blades 4 are installed on the generator compartment 2 for use through the mounting hub 301, and part of the wind can be better guided to the blades through the air guide 3. When in use, the air pump is used to supply air, and then the gas is transported to the airbag strip 401 through the mounting hub 301 and the mounting head 402 for inflation. Secondly, the air collecting basket 403 is extended to make the engine blades 4 rotate on the air guide 3. Since the air collecting basket 403 is at the outer end of the engine blade 4, its rotation rate is relatively large, thereby improving the air intake efficiency of the air inlet 404 on the air collecting basket 403, so that the air collecting basket 403 is used to inflate the airbag strip 401.

[0026] like Figure 1 As shown, in this embodiment, a mounting tower 1 is provided below the generator cabin 2, and the mounting tower 1 is engaged and movably connected with the generator cabin 2, and the mounting tower 1 is vertically installed on the ground to support the generator cabin 2;

[0027] Specifically, through this arrangement, when in use, the mounting tower 1 is fixedly installed on the ground, and the generator cabin 2 is installed on the mounting tower 1, and then the mounting tower 1 supports and installs the generator cabin 2, the air deflector 3 and the engine blades 4.

[0028] like Figure 2-Figure 5 As shown, in this embodiment, a mounting head 402 is provided at the inner end, and the mounting head 402 is fixedly connected to the engine blade 4, the mounting head 402 is embedded and installed in the mounting hub 301, and the airbag strip 401 is connected to the mounting hub 301 through the mounting head 402, the mounting head 402 is installed at the inner end of the engine blade 4, the mounting head 402 and the air collecting basket 403 are both connected to the airbag strip 401, the airbag strip 401 is installed in an arc shape on the outer surface of the engine blade 4, and the expansion radius of the airbag strip 401 is equal;

[0029] Specifically, through this arrangement, when in use, the gas is transported from the mounting head 402 at the inner end to the airbag strip 401 through the air pump, and the gas is collected and filled into the airbag strip 401 through the air collecting basket 403 at the outer end. When the gas input at the mounting head 402 meets the gas input at the air collecting basket 403 in the airbag strip 401, a diaphragm operation is generated on the surface of the airbag strip 401, and the gas entering from the inner and outer ends causes the airbag strip 401 to expand and generate a diaphragm operation, thereby breaking up the condensed ice on the surface of the engine blade 4. At the same time, under the blowing of wind and the rotation of the engine blade 4, the ice falls off the engine blade 4, thereby improving the de-icing efficiency. When de-icing is completed, the air collecting basket 403 is put into the engine blade 4, and the gas in the airbag strip 401 is discharged through the air pump in the generator compartment 2, and then the airbag strip 401 is attached to the surface of the engine blade 4 so that it can be used for de-icing again when needed.

[0030] It should be noted that when using the utility model as an anti-icing wind turbine blade, firstly, the installation tower 1, the generator cabin 2, the deflector 3 and the engine blade 4 are installed and used. When in use, the gas is supplied by the air pump to transport the gas to the airbag strip 401 for inflation. Secondly, the air collecting basket 403 is extended and the deflector 3 is rotated, so that the air inlet 404 is used by the air collecting basket 403 to collect gas for inflation of the airbag strip 401. When the gas input at the installation head 402 and the gas input at the air collecting basket 403 are When the gases meet in the airbag strip 401, a diaphragm operation is generated, and the gas entering from the inner and outer ends causes the airbag strip 401 to expand and generate a diaphragm operation, thereby breaking up the ice condensed on the surface of the engine blade 4, and causing the ice to fall off under the blowing of wind and the rotation of the engine blade 4. When de-icing is completed, the air collecting basket 403 is put into the engine blade 4, and the gas in the airbag strip 401 is discharged through the air pump in the generator compartment 2, and then the airbag strip 401 is attached to the surface of the engine blade 4 so that it can be used for de-icing again when needed.

[0031] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. The utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An anti-icing wind turbine blade, comprising a generator cabin (2), a shroud (3) and a generator blade (4), characterized in that: An air pump is provided inside the generator cabin (2), a mounting hub (301) is provided inside the shroud (3), and the engine blades (4) are movably mounted with the generator cabin (2) via the mounting hub (301), and airbag strips (401) are mounted around and in close contact with the outer sides of the engine blades (4), and in the engine blades (4), the airbag strips (401) are connected to the air pump in the generator cabin (2) via the mounting hub (301), and the engine blades (4) are divided into an outer end and an inner end, wherein the outer end is provided with an air collecting basket (403), and the air collecting basket (403) is movably mounted in the engine blades (4), and an air inlet (404) is provided on one side of the air collecting basket (403).

2. The anti-icing wind turbine blade according to claim 1, characterized in that: A mounting tower (1) is provided below the generator cabin (2), and the mounting tower (1) is movably connected to the generator cabin (2) by being engaged with the generator cabin (2). The mounting tower (1) is vertically mounted on the ground to support the generator cabin (2).

3. The anti-icing wind turbine blade according to claim 1, characterized in that: The deflector (3) is installed at one end of the generator cabin (2), and the engine blades (4) are installed around the outer side of the deflector (3) at equal intervals. The inner end is provided with a mounting head (402), and the mounting head (402) is fixedly connected to the engine blades (4).

4. The anti-icing wind turbine blade according to claim 3, characterized in that: The mounting head (402) is embedded and mounted in the mounting hub (301), and the airbag strip (401) is connected to the mounting hub (301) through the mounting head (402).

5. The anti-icing wind turbine blade according to claim 4, characterized in that: The air collecting basket (403) is installed on the outer end of the engine blade (4), and the mounting head (402) is installed on the inner end of the engine blade (4). Both the mounting head (402) and the air collecting basket (403) are connected to the airbag strip (401).

6. The anti-icing wind turbine blade according to claim 1, characterized in that: The airbag strip (401) is arc-shaped and is fitted on the outer surface of the engine blade (4), and the expansion radius of the airbag strip (401) is equal.

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