Self-heating deicing meteorological frame of wind turbine generator

Abstract

The utility model discloses a self-heating deicing meteorological frame of a wind turbine generator, which comprises a meteorological frame and a heating assembly, the meteorological frame comprises a cross rod, a cable of meteorological instrument equipment is arranged in the cross rod in a penetrating manner, and the heating assembly comprises a heating piece coated outside the cross rod and a temperature control switch used for detecting the temperature in the cross rod; the heating piece, the temperature control switch and a temperature sensor used for detecting the environment temperature on the wind turbine generator are all electrically connected with a main control system of the wind turbine generator. According to the meteorological frame, the temperature sensor can detect the environment temperature so that the heating piece can be started and stopped respectively when the environment temperature is low and high, and the temperature control switch can detect the temperature in the cross rod so that the heating piece can be started and stopped respectively when the temperature in the meteorological frame is low and high. Namely, the self-heating deicing meteorological frame of the wind turbine generator set not only can perform self-heating deicing, but also can ensure that the cables, penetrating through the transverse rod, of the meteorological instrument equipment work normally and safely, so that the meteorological instrument equipment can operate normally, and then safe operation of the wind turbine generator set is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind turbine generator sets, in particular to a self-heating deicing meteorological frame for wind turbine generator sets. Background Art

[0002] Currently, some wind turbines are installed in harsh environments characterized by extreme low temperatures, ice, and snow. As wind turbine capacity increases, the adverse effects of freezing on wind turbines are becoming increasingly severe. Wind turbines are equipped with meteorological racks for mounting weather instruments such as anemometers and wind vanes. Freezing can cause these instruments to malfunction or increase data deviations, impacting the overall reliable operation of the wind turbine.

[0003] To adapt to freezing environments, most meteorological instruments have built-in heating features. This ensures normal operation when the relative humidity of the wind turbine environment is low. However, in areas with high relative humidity, freezing rain is very common in winter, and thick ice can easily form on the surface of the meteorological instrument. This can cause the heating of meteorological instruments to malfunction, seriously affecting the safe operation of the wind turbine. Utility Model Content

[0004] In order to overcome the defects of the prior art, the utility model provides a self-heating deicing weather frame for a wind turbine generator set, which can ensure the safe operation of the wind turbine generator set.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A self-heating deicing weather stand for a wind turbine generator system, comprising:

[0007] A weather stand, comprising a crossbar for mounting weather instruments, wherein cables for the weather instruments are passed through the crossbar;

[0008] A heating assembly, the heating assembly includes a heating element wrapped around the crossbar and a temperature control switch for detecting the temperature inside the crossbar;

[0009] Among them, the heating element, the temperature control switch and the temperature sensor on the wind turbine generator set for detecting the ambient temperature are all electrically connected to the main control system of the wind turbine generator set.

[0010] The beneficial effects of adopting the above technical solution are as follows: the temperature sensor can judge the ice formation by detecting the ambient temperature, so that the heating element can be started and stopped respectively when the ambient temperature is low and high; the temperature control switch can detect the temperature inside the cross bar, so that the heating element can be started and stopped respectively when the temperature inside the meteorological frame is low and high. That is, the self-heating and de-icing meteorological frame of the wind turbine can not only self-heat and de-ice, but also ensure that the cables of the meteorological instrument equipment passed through the cross bar work normally and safely, so that the meteorological instrument equipment can operate normally, thereby ensuring the safe operation of the wind turbine.

[0011] In one embodiment, the heating element is a silicone heating film.

[0012] The beneficial effects of adopting the above technical solution are: the silicone heating film has good weather resistance, aging resistance and corrosion resistance, and has a long service life, and can be applied to the harsh working environment of wind turbines.

[0013] In one embodiment, the heating assembly further comprises a clamping member for clamping the heating element on the crossbar, wherein the clamping member is wrapped around the heating element.

[0014] The beneficial effect of adopting the above technical solution is that the heating element is clamped on the cross bar by the clamping member covering the heating element, so as to achieve a fixed connection with the cross bar.

[0015] In one embodiment, the clamping member includes two clamping plates for respectively covering the upper portion and the lower portion of the heating member and a plurality of cable ties for fastening the two clamping plates to the heating member.

[0016] The beneficial effect of adopting the above scheme is: multiple cable ties fasten the two splints to the heating element, so that the two splints press the silicone heating film flatly on the outer wall of the cross bar, thereby reducing the contact thermal resistance between the silicone heating film and the outer wall of the cross bar, and thus improving the heat conduction efficiency.

[0017] In one embodiment, the clamping plate is a stainless steel plate.

[0018] In one embodiment, the cable tie is a stainless steel cable tie.

[0019] In one embodiment, a first threading hole is transversely arranged in the crossbar, and a plurality of second threading holes are arranged through the upper end of the first threading hole.

[0020] The beneficial effect of adopting the above technical solution is that the crossbar relies on the first threading hole and the second threading hole to pass the cable of the meteorological instrument equipment.

[0021] In one embodiment, the heating element and the clamping element are respectively provided with a first hole body and a second hole body, the sizes of the first hole body and the second hole body both match the sizes of the second threading hole, and the horizontal positions of the first hole body and the second hole body both match the horizontal position of the second threading hole.

[0022] The beneficial effect of adopting the above technical solution is: the heating element and the clamping element are respectively provided with the first hole body and the second hole body to avoid the second wire threading hole, so as to prevent the heating element and the clamping element from blocking the second wire threading hole, thereby ensuring that the cable of the meteorological instrument equipment can be normally passed through.

[0023] In one embodiment, the weather rack includes two vertical rods and two diagonal bracing rods, and the upper ends of the two vertical rods and the two diagonal bracing rods are respectively connected to the two sides of the crossbar.

[0024] The beneficial effects of adopting the above technical solution are: the two vertical rods and the two diagonal braces jointly provide support for the horizontal rod; and after the lower ends of the vertical rods and the diagonal braces are fixed, a triangular support can be formed, which is beneficial to improving the installation stability of the meteorological rack.

[0025] In one embodiment, a transverse reinforcement rod is provided between the two vertical rods.

[0026] The beneficial effect of adopting the above technical solution is that the transverse reinforcement rod can further improve the installation stability of the meteorological rack.

[0027] The beneficial effects of the present invention are:

[0028] The temperature sensor can detect the ambient temperature to determine whether there is icing, so that the heating element can be started and stopped when the ambient temperature is low and high respectively. The temperature control switch can detect the temperature inside the crossbar, so that the heating element can be started and stopped when the temperature inside the meteorological frame is low and high respectively. That is, the self-heating and de-icing meteorological frame of the wind turbine can not only self-heat and de-ice, but also ensure that the cables of the meteorological instrument equipment installed in the crossbar work normally and safely, so that the meteorological instrument equipment can operate normally, thereby ensuring the safe operation of the wind turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be described in more detail below based on embodiments with reference to the accompanying drawings.

[0030] in:

[0031] Figure 1 Shows a schematic structural diagram of the utility model;

[0032] Figure 2 Shows Figure 1 A partial enlarged view of point A in the middle;

[0033] In the drawings, like reference numerals are used for like parts, but the drawings are not necessarily true to scale.

[0034] Reference numerals:

[0035] 1-cross bar, 2-heating element, 201-first hole body, 3-plywood, 301-second hole body, 4-tie, 5-vertical bar, 6-diagonal support bar, 7-transverse reinforcement bar. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to the accompanying drawings.

[0037] The utility model provides a self-heating deicing weather frame for wind turbines, such as Figure 1 and Figure 2 As shown, it includes:

[0038] The meteorological rack includes a crossbar 1 for mounting meteorological equipment, and the cables of the meteorological equipment are passed through the crossbar 1;

[0039] The heating assembly includes a heating element 2 wrapped around the crossbar 1 and a temperature control switch for detecting the temperature inside the crossbar 1;

[0040] The heating element 2 , the temperature control switch and the temperature sensor on the wind turbine generator set for detecting the ambient temperature are all electrically connected to the main control system of the wind turbine generator set.

[0041] It is understandable that the temperature sensor can detect the ambient temperature to determine if ice has formed, so that the heating element 2 can be started and stopped when the ambient temperature is low or high, respectively, thereby actively preventing ice from forming on the crossbar 1; the temperature control switch can detect the temperature inside the crossbar 1, so that the heating element 2 can be started and stopped when the temperature inside the meteorological frame is low or high, respectively, thereby melting the ice on the crossbar 1; that is, the self-heating and de-icing meteorological frame of the wind turbine can not only self-heat and de-ice, but also ensure that the cables of the meteorological equipment passing through the crossbar 1 work normally and safely, so that the meteorological equipment can operate normally, thereby ensuring the safe operation of the wind turbine. In addition, the self-heating and de-icing meteorological frame of the wind turbine has a simple structure and can be automatically controlled by the main control system of the wind turbine, which can ensure that the meteorological frame and the meteorological equipment installed thereon operate normally in environments with a high risk of ice formation, and maintain the reliable operation of the wind turbine in harsh low-temperature environments.

[0042] In one embodiment, the heating element 2 is a silicone heating film.

[0043] It can be understood that silicone heating film has good weather resistance, aging resistance and corrosion resistance. It has the characteristics of high thermal conductivity, high strength, fast heating and uniform heating, and has a long service life. It can be used in the harsh working environment of wind turbines.

[0044] In one embodiment, the heating assembly further includes a clamping member for clamping the heating element 2 on the crossbar 1 , and the clamping member is wrapped around the outside of the heating element 2 .

[0045] It can be understood that the heating element 2 is clamped on the crossbar 1 by the clamping member covering the outside of the heating element 2 to achieve a fixed connection with the crossbar 1.

[0046] In one embodiment, the clamping member includes two clamping plates 3 for respectively covering the upper and lower portions of the heating element 2 and a plurality of cable ties 4 for fastening the two clamping plates 3 to the heating element 2 .

[0047] It can be understood that multiple cable ties 4 fasten the two clamps 3 to the heating element 2, so that the two clamps 3 press the silicone heating film flatly on the outer wall of the cross bar 1, thereby reducing the contact thermal resistance between the silicone heating film and the outer wall of the cross bar 1, and thus improving the heat conduction efficiency; in addition, this arrangement also makes it convenient to wrap the clamping part around the outside of the heating element 2.

[0048] It should be noted that the cross bar 1 can be made of a hollow rectangular steel tube. Accordingly, the silicone heating film is also rolled into a rectangle when installed, and the two plywood 3 are also rectangular after being combined, so as to facilitate pressing the silicone heating film flatly on the outer wall of the cross bar 1.

[0049] It should also be noted that the installation process of the heating element 2 and the clamping element is as follows:

[0050] Roll the silicone heating film into a rectangle and wrap it around the outer wall of the crossbar 1;

[0051] The two splints 3 are respectively wrapped around the upper and lower parts of the silicone heating film, and then the two splints 3 together with the silicone heating film are fastened to the crossbar 1 using a plurality of cable ties 4 .

[0052] In one embodiment, the clamping plate 3 is a 304 stainless steel sheet, and the cable tie 4 is a stainless steel cable tie.

[0053] In one embodiment, a first threading hole is transversely provided in the crossbar 1 , and a plurality of second threading holes are provided through the upper end of the first threading hole. The crossbar 1 relies on the first threading holes and the second threading holes to pass the cables of the meteorological instrument equipment.

[0054] In one embodiment, Figure 2 As shown, the heating element 2 and the clamping plate 3 are respectively provided with a first hole body 201 and a second hole body 301, the sizes of the first hole body 201 and the second hole body 301 match the sizes of the second threading hole, and the horizontal positions of the first hole body 201 and the second hole body 301 match the horizontal positions of the second threading hole.

[0055] It can be understood that the heating element 2 and the clamping element are respectively provided with the first hole 201 and the second hole 301 to avoid the second threading hole, so as to prevent the heating element 2 and the clamping element from blocking the second threading hole, thereby ensuring that the cable of the meteorological instrument equipment can be normally passed through.

[0056] In one embodiment, the weather stand includes two vertical rods 5 and two diagonal braces 6 , and the upper ends of the two vertical rods 5 and the two diagonal braces 6 are respectively connected to the two sides of the crossbar 1 .

[0057] It can be understood that the two vertical rods 5 and the two diagonal braces 6 jointly provide support for the crossbar 1; and after the lower ends of the vertical rods 5 and the diagonal braces 6 are fixed, a triangular support can be formed, which is beneficial to improving the installation stability of the meteorological rack.

[0058] In one embodiment, a transverse reinforcement rod 7 is provided between the two vertical rods 5 to further improve the installation stability of the weather rack.

[0059] The working process of this utility model is:

[0060] When the temperature sensor of the wind turbine generator set detects that the ambient temperature is lower than 0°C, the main control system of the wind turbine generator set supplies power to the heating element 2, and the heating element 2 starts heating; when the temperature sensor of the wind turbine generator set detects that the ambient temperature is higher than 5°C, the main control system of the wind turbine generator set stops supplying power to the heating element 2, and the heating element 2 stops heating;

[0061] When the temperature control switch detects that the temperature inside the cross bar 1 is lower than 10°C, the main control system of the wind turbine generator set connects to the heating element 2 and supplies power to the heating element 2, and the heating element 2 starts heating; when the temperature control switch detects that the temperature inside the cross bar 1 is higher than 20°C, the connection between the main control system of the wind turbine generator set and the heating element 2 is disconnected to stop supplying power to the heating element 2, and the heating element 2 stops heating.

[0062] To sum up, the utility model can be combined with the main control system of the wind turbine to automatically heat and de-ice. It has a simple structure, is easy to use, easy to manufacture and highly practical, and can be customized to meet the operating environment requirements of various wind turbines; the utility model can ensure that the meteorological frame crossbar 1 and the meteorological instrument equipment installed thereon work normally in an environment with a high risk of icing, and ensure that the wind turbine can operate reliably in a harsh low-temperature environment; the utility model adopts a silicone heating film, which has the characteristics of being soft, heating quickly, heating evenly, having good weather resistance, good aging resistance and good corrosion resistance. The silicone heating film can be customized according to the structure of the meteorological frame; the utility model sets a temperature control switch to protect the cable of the meteorological instrument equipment, which can improve the safety and reliability of the heating element 2.

[0063] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0064] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It should be understood that many modifications may be made to the illustrative embodiments, and that other arrangements may be devised, without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in ways other than those described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be employed in conjunction with other described embodiments.

Claims

1. A self-heating deicing weather stand for a wind turbine generator, characterized in that: include: A meteorological stand, comprising a crossbar (1) for mounting a meteorological instrument device, wherein a cable of the meteorological instrument device is passed through the crossbar (1); A heating assembly, the heating assembly comprising a heating element (2) wrapped around the crossbar (1) and a temperature control switch for detecting the temperature inside the crossbar (1); The heating element (2), the temperature control switch and the temperature sensor on the wind turbine generator set for detecting the ambient temperature are all electrically connected to the main control system of the wind turbine generator set.

2. The self-heating deicing weather stand for a wind turbine according to claim 1, characterized in that: The heating element (2) is a silica gel heating film.

3. The self-heating deicing weather stand for a wind turbine according to claim 2, characterized in that: The heating assembly further comprises a clamping member for clamping the heating member (2) on the crossbar (1), the clamping member being wrapped around the outside of the heating member (2).

4. The self-heating deicing weather stand for a wind turbine according to claim 3, characterized in that: The clamping member comprises two clamping plates (3) for respectively covering the upper and lower parts of the heating member (2) and a plurality of straps (4) for fastening the two clamping plates (3) to the heating member (2).

5. The self-heating deicing weather stand for a wind turbine according to claim 4, characterized in that: The clamping plate (3) is a stainless steel plate.

6. The self-heating deicing weather stand for a wind turbine according to claim 4, characterized in that: The cable tie (4) is a stainless steel cable tie.

7. The self-heating deicing weather stand for a wind turbine according to claim 3, characterized in that: A first threading hole is transversely arranged in the cross bar (1), and a plurality of second threading holes are arranged through the upper end of the first threading hole.

8. The self-heating deicing weather stand for a wind turbine according to claim 7, characterized in that: The heating element (2) and the clamping element are respectively provided with a first hole body (201) and a second hole body (301), the sizes of the first hole body (201) and the second hole body (301) both match the sizes of the second threading hole, and the horizontal positions of the first hole body (201) and the second hole body (301) both match the horizontal position of the second threading hole.

9. The self-heating deicing weather stand for a wind turbine according to claim 1, characterized in that: The weather stand comprises two vertical rods (5) and two diagonal bracing rods (6), and the upper ends of the two vertical rods (5) and the two diagonal bracing rods (6) are respectively connected to the two sides of the crossbar (1).

10. The self-heating deicing weather stand for a wind turbine according to claim 9, characterized in that: A transverse reinforcement rod (7) is provided between the two vertical rods (5).

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