Blade temperature measuring device

Abstract

The utility model provides a blade temperature measuring device. The blade temperature measuring device comprises a blade body, a heating assembly, a fixing assembly and a first temperature sensor. The blade body is provided with a mounting hole. The heating assembly is mounted on one side of the blade body and covers the mounting hole. The fixing assembly comprises a fixing flange, and the fixing flange is installed on the blade body and corresponds to the installation hole. The first temperature sensor is detachably installed on the fixed flange. According to the blade temperature measuring device, through the fixing flange, compared with the mode that the first temperature sensor is directly installed on the surface of the blade body in the related technology, the first temperature sensor and the fixing flange are detachably connected, and dismounting and mounting are convenient. In the actual application process, maintenance and replacement are convenient, and use convenience can be improved. Moreover, compared with the prior art, the connection stability between the first temperature sensor and the blade main body can be improved through the fixing flange.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power blade monitoring equipment, and in particular relates to a blade temperature measuring device. Background Art

[0002] In a low-temperature, high-humidity icing environment, wind turbine blades are prone to freezing and forming ice layers. Affected by the ice layer, the aerodynamic characteristics of the wind turbine blades are also affected. The presence of the ice layer will increase the mass of the wind turbine blades, causing the load of the wind turbine blades to increase, thereby changing the lift of the wing surface. The aerodynamic performance of the wind turbine blades is significantly reduced, the wind power generation efficiency deteriorates, and even causes the wind turbine to shut down, resulting in huge economic losses and waste of resources. Therefore, in order to prevent the wind turbine blades from being affected by the ice layer, it is usually necessary to install a deicing device on the surface of the wind turbine blades. The deicing device usually includes a heater, a controller and a temperature sensor. The temperature sensor is installed on the surface of the wind turbine blade and is used to detect the surface temperature of the wind turbine blade. When the temperature drops to a certain threshold, the controller controls the heater to heat the wind turbine blade to achieve the purpose of deicing. In the related art, the temperature sensor is usually directly installed on the surface of the wind turbine blade, which is troublesome to disassemble and install. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a blade temperature measuring device to solve the technical problem in the prior art that the temperature sensor is directly installed on the surface of the wind turbine blade, which makes disassembly and installation difficult.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a blade temperature measuring device, comprising:

[0005] A blade body, wherein the blade body is provided with a mounting hole;

[0006] A heating component, the heating component is installed on one side of the blade body and covers the installation hole;

[0007] A fixing assembly, the fixing assembly comprising a fixing flange, the fixing flange being mounted on the blade body and arranged corresponding to the mounting hole;

[0008] A first temperature sensor is detachably mounted on the fixing flange.

[0009] Optionally, the fixing assembly further includes a fixing sleeve, which is installed in the mounting hole and located between the heating assembly and the fixing flange.

[0010] Optionally, the fixing sleeve includes a first sleeve and a second sleeve, the first sleeve is installed in the mounting hole and is located at one end of the mounting hole close to the fixing flange, and the second sleeve is connected to one end of the first sleeve away from the fixing flange.

[0011] Optionally, the diameter of the second sleeve is gradually increased along the axial direction from an end close to the first sleeve toward an end far away from the first sleeve.

[0012] Optionally, the fixing assembly further includes a first filling layer, and the first filling layer fills a space enclosed by a side wall of the mounting hole, an outer side of the first sleeve, and an outer side of the second sleeve.

[0013] Optionally, the blade temperature measuring device also includes a second temperature sensor, which is installed on the outer surface of the blade body; the fixing component also includes a second filling layer, which is filled in the mounting hole and covers the second temperature sensor.

[0014] Optionally, the heating assembly comprises a panel, and the panel is mounted on a side of the blade body facing away from the fixing flange.

[0015] Optionally, the heating assembly further comprises a heating plate, and the heating plate is mounted on a side of the panel facing away from the blade body.

[0016] Optionally, the heating assembly further comprises an insulating plate, wherein the insulating plate is installed between the panel and the heating plate.

[0017] Optionally, the fixed flange includes a first flange body and a second flange body, the first flange body is installed on one side of the blade body, and the second flange body is installed on the first flange body.

[0018] The beneficial effects of the blade temperature measuring device provided by the present application are:

[0019] The blade temperature measuring device provided in the embodiment of the present application uses a fixed flange. Compared with the related art in which the first temperature sensor is directly installed on the surface of the blade body, the first temperature sensor and the fixed flange are designed to be detachably connected, which is convenient for disassembly and installation. In actual application, it is convenient for maintenance and replacement, which helps to improve the convenience of use. Moreover, compared with the related art, the fixed flange also helps to improve the connection stability between the first temperature sensor and the blade body. The use of a heating component, with the cooperation of the first temperature sensor and the external controller, can remove the ice layer on the surface of the blade body, which helps to improve the power generation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A three-dimensional diagram of the blade temperature measuring device provided in Example 1 of the present application;

[0022] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0023] Figure 3 A cross-sectional view of a blade temperature measuring device provided in Embodiment 2 of the present application;

[0024] Figure 4 This is a cross-sectional view of the blade temperature measuring device provided in Example 3 of the present application.

[0025] Among them, the reference numerals in the figure are:

[0026] 100. Blade body;

[0027] 200, heating assembly; 210, panel; 220, heating plate; 230, insulation plate;

[0028] 300, fixing assembly; 310, fixing flange; 311, first flange body; 312, second flange body; 320, fixing sleeve; 321, first sleeve; 322, second sleeve; 330, first filling layer; 340, second filling layer;

[0029] 400. a first temperature sensor;

[0030] 500. Second temperature sensor. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] Embodiment 1

[0036] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a blade temperature measuring device, including a blade body 100, a heating component 200, a fixing component 300 and a first temperature sensor 400. The blade body 100 is provided with a mounting hole. The heating component 200 is installed on one side of the blade body 100 and covers the mounting hole. The fixing component 300 includes a fixing flange 310, which is installed on the blade body 100 and is arranged corresponding to the mounting hole. The first temperature sensor 400 is detachably mounted on the fixing flange 310.

[0037] Specifically, in actual application, the staff drills a mounting hole on the blade body 100 in advance, and uses glass fiber cloth to manually install the fixing flange 310, which is located on the cavity side of the blade body 100, that is, the inner surface of the blade body 100. When the first temperature sensor 400 needs to be installed, the staff can directly screw the first temperature sensor 400 into the fixing flange 310. When the first temperature sensor 400 needs to be removed, the staff can directly screw the first temperature sensor 400 out.

[0038] More specifically, the blade temperature measuring device also includes an external controller (not shown in the figure), and the external controller is electrically connected to the heating component 200 and the first temperature sensor 400. When the blade body 100 is de-iced, the first temperature sensor 400 detects the surface temperature of the blade body 100 and transmits the temperature data to the external controller. When the temperature drops to a certain threshold, the external controller controls the heating component 200 to generate heat, and the surface temperature of the blade body 100 increases, thereby achieving the purpose of de-icing. When detecting the temperature rise on the surface of the blade body 100, the first temperature sensor 400 detects the surface temperature of the heated blade, and the external controller collects the first temperature data T1 through the first temperature sensor 400. The surface temperature of the blade body 100 is measured using an infrared thermometer to obtain a second temperature T2. The change trends of the two are observed to obtain a temperature compensation value T=T2-T1. The value of T is written into the temperature algorithm in the external controller to reduce the impact of absolute error.

[0039] The blade temperature measuring device provided in the present application is designed with a detachable connection through a fixed flange 310, compared with the related art in which the first temperature sensor 400 is directly installed on the surface of the blade body 100. The first temperature sensor 400 and the fixed flange 310 are easy to disassemble and install. In actual application, it is convenient for maintenance and replacement, which helps to improve the convenience of use. In addition, compared with the related art, the fixed flange 310 also helps to improve the connection stability between the first temperature sensor 400 and the blade body 100. In addition, the installation hole can shorten the distance between the first temperature sensor 400 and the outer surface of the blade body 100, which helps to improve the detection accuracy of the first temperature sensor 400 and reduce the error. The heating assembly 200 can remove the ice layer on the surface of the blade body 100 with the cooperation of the first temperature sensor 400 and the external controller, which helps to improve the power generation efficiency.

[0040] Optionally, the first temperature sensor 400 is configured as a thermal resistance temperature sensor.

[0041] In one embodiment of the present application, see Figure 1 and Figure 2 The fixing assembly 300 also includes a fixing sleeve 320 , which is installed in the mounting hole and located between the heating assembly 200 and the fixing flange 310 .

[0042] Specifically, after drilling the mounting hole, the worker inserts the fixing sleeve 320 into the mounting hole between the hand-laid fixing flanges 310 . When installing the first temperature sensor 400 , at least a portion of the first temperature sensor 400 is located in the fixing sleeve 320 .

[0043] With such a configuration, the fixing sleeve 320 is used to prevent the first temperature sensor 400 from directly contacting the inner wall of the mounting hole after the first temperature sensor 400 is installed on the fixing flange 310 , thereby effectively protecting the first temperature sensor 400 and helping to increase the service life of the first temperature sensor 400 .

[0044] In one embodiment of the present application, please refer to Figure 1 and Figure 2 The heating assembly 200 includes a panel 210 , and the panel 210 is installed on a side of the blade body 100 facing away from the fixing flange 310 .

[0045] In this configuration, since the panel 210 is in direct contact with the blade body 100, when the first temperature sensor 400 is used to detect the temperature of the outer surface of the blade body 100, the panel 210 and the blade body 100 perform heat exchange, which helps to increase the detection area of ​​the first temperature sensor 400, thereby helping to improve the detection accuracy of the first temperature sensor 400. In addition, the panel 210, in cooperation with the fixing flange 310, can limit the fixing sleeve 320 in the mounting hole to prevent the fixing sleeve 320 from coming out of the mounting hole, which helps to improve the stability between the fixing sleeve 320 and the blade body 100.

[0046] In one embodiment of the present application, see Figure 1 and Figure 2 The heating assembly 200 further includes a heating plate 220 , which is installed on a side of the panel 210 facing away from the blade body 100 .

[0047] With such a configuration, the heating plate 220 is electrically connected to an external power source and an external controller, and can heat the surface of the blade body 100 , thereby being able to remove the ice layer on the surface of the blade body 100 , which helps to improve power generation efficiency.

[0048] In one embodiment of the present application, see Figure 1 and Figure 2 The heating assembly 200 further includes an insulating plate 230 , which is installed between the panel 210 and the heating plate 220 .

[0049] In this way, the insulating plate 230 can prevent the heating plate 220 and the first temperature sensor 400 from being connected during the heating process, thereby preventing the first temperature sensor 400 from being damaged, and can effectively protect the first temperature sensor 400. In addition, the insulating plate 230 can also conduct heat, which helps to improve the detection accuracy of the first temperature sensor 400.

[0050] In one embodiment of the present application, please refer to Figure 1 and Figure 2The fixing flange 310 includes a first flange body 311 and a second flange body 312 . The first flange body 311 is installed on one side of the blade body 100 , and the second flange body 312 is installed on the first flange body 311 .

[0051] It should be noted that the first flange body 311 has threads on its inner side, and the second flange body 312 has threads on its inner side and outer side.

[0052] In this way, the first flange body 311 is used to increase the contact area between the second flange body 312 and the blade body 100. Compared with directly installing the second flange body 312 to the blade body 100, the connection stability between the second flange body 312 and the blade body 100 is better. The second flange body 312 is used to screw the first temperature sensor 400 to the second flange body 312, which is convenient for disassembly and installation. Since the first flange body 311 has threads on the inside, and the second flange body 312 has threads on the inside and outside, the first flange body 311 and the second flange body 312 can realize a detachable connection design, which is convenient for disassembly and installation, and helps to improve the convenience of use.

[0053] Embodiment 2

[0054] This embodiment is basically the same as the first embodiment, and the difference is only that: Figure 1 and Figure 3 As shown, the fixing sleeve 320 includes a first sleeve 321 and a second sleeve 322. The first sleeve 321 is installed in the mounting hole and is located at one end of the mounting hole close to the fixing flange 310, and the second sleeve 322 is connected to one end of the first sleeve 321 away from the fixing flange 310. The diameter of the second sleeve 322 is gradually increased along the axial direction from the end close to the first sleeve 321 toward the end away from the first sleeve 321. The fixing assembly 300 also includes a first filling layer 330, which fills the space enclosed by the side wall of the mounting hole, the outer side of the first sleeve 321, and the outer side of the second sleeve 322.

[0055] In this configuration, since the diameter of the second sleeve 322 is gradually increased along the axial direction from the end close to the first sleeve 321 toward the end far from the first sleeve 321, in actual application, compared with the direct contact between the first sleeve 321 and the heating plate 220, the contact area between the second sleeve 322 and the heating plate 220 is larger, which helps to improve the detection accuracy of the first temperature sensor 400. In addition, when installing the fixed sleeve 320, it is convenient for the staff to align the installation hole, which helps to improve the convenience of use.

[0056] Optionally, the first sleeve 321 and the second sleeve 322 are made of ceramic material.

[0057] Optionally, the first filling layer 330 is configured as glass fiber and / or structural adhesive.

[0058] Embodiment 3

[0059] This embodiment is basically the same as the first embodiment, and the difference is only that: Figure 1 and Figure 4 As shown, the blade temperature measuring device further includes a second temperature sensor 500 , which is mounted on the outer surface of the blade body 100 . The fixing assembly 300 further includes a second filling layer 340 , which is filled in the mounting hole and covers the second temperature sensor 500 .

[0060] With such a configuration, when installing the second temperature sensor 500, the staff can install the second temperature sensor 500 on the surface of the second filling layer 340 after filling the second filling layer 340 into the installation hole. When disassembling the second temperature sensor 500, after the staff removes the second filling layer 340, the second temperature sensor 500 is removed along with the second filling layer 340. Wrap with high temperature resistant closed-cell foam (such as silicone foam) and arrange on the outer surface of the blade. The closed-cell foam needs to be fixed to the blade by hand paste. Since the second temperature sensor 500 is located on the outside of the blade, the type and distance of the medium for temperature transmission can be reduced, and the temperature change of the heating plate 220 can be detected more directly.

[0061] Optionally, the second temperature sensor 500 is configured as a thin-film temperature sensor.

[0062] Optionally, the second filling layer 340 is configured as high temperature resistant closed-cell foam.

[0063] One or more embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present application should be included in the protection scope of the present application.

Claims

1. A blade temperature measuring device, characterized in that: include: A blade body (100), wherein the blade body (100) is provided with a mounting hole; A heating component (200), the heating component (200) being mounted on one side of the blade body (100) and covering the mounting hole; A fixing assembly (300), the fixing assembly (300) comprising a fixing flange (310), the fixing flange (310) being mounted on the blade body (100) and arranged corresponding to the mounting hole; A first temperature sensor (400), wherein the first temperature sensor (400) is detachably mounted on the fixing flange (310).

2. The blade temperature measuring device according to claim 1, characterized in that: The fixing assembly (300) further comprises a fixing sleeve (320), wherein the fixing sleeve (320) is installed in the installation hole and is located between the heating assembly (200) and the fixing flange (310).

3. The blade temperature measuring device according to claim 2, characterized in that: The fixed sleeve (320) comprises a first sleeve (321) and a second sleeve (322); the first sleeve (321) is installed in the installation hole and is located at one end of the installation hole close to the fixed flange (310); and the second sleeve (322) is connected to one end of the first sleeve (321) away from the fixed flange (310).

4. The blade temperature measuring device according to claim 3, characterized in that: The diameter of the second sleeve (322) is gradually increased along the axial direction from an end close to the first sleeve (321) towards an end away from the first sleeve (321).

5. The blade temperature measuring device according to claim 4, characterized in that: The fixing assembly (300) further comprises a first filling layer (330), wherein the first filling layer (330) fills a space enclosed by a side wall of the mounting hole, an outer side of the first sleeve (321) and an outer side of the second sleeve (322).

6. The blade temperature measuring device according to claim 1, characterized in that: The blade temperature measuring device further comprises a second temperature sensor (500), the second temperature sensor (500) being mounted on the outer surface of the blade body (100); the fixing assembly (300) further comprises a second filling layer (340), the second filling layer (340) being filled in the mounting hole and covering the second temperature sensor (500).

7. The blade temperature measuring device according to claim 1, characterized in that: The heating assembly (200) comprises a panel (210), and the panel (210) is mounted on a side of the blade body (100) facing away from the fixing flange (310).

8. The blade temperature measuring device according to claim 7, characterized in that: The heating assembly (200) further comprises a heating plate (220), wherein the heating plate (220) is mounted on a side of the panel (210) facing away from the blade body (100).

9. The blade temperature measuring device according to claim 8, characterized in that: The heating assembly (200) further comprises an insulating plate (230), wherein the insulating plate (230) is installed between the panel (210) and the heating plate (220).

10. The blade temperature measuring device according to any one of claims 1 to 9, characterized in that: The fixing flange (310) comprises a first flange body (311) and a second flange body (312); the first flange body (311) is mounted on one side of the blade body (100), and the second flange body (312) is mounted on the first flange body (311).

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