Gas turbine starter exhaust air damper

Abstract

The utility model provides a kind of gas turbine starter exhaust air door windproof device, it is characterized in that, including shell, upper cover, lower cover, shell includes shell, inner shell, shell and inner shell between filling have heat insulating material, the upper cover and lower cover are respectively arranged in the upper and lower sides of shell to form sealed area between shell and inner shell, the shell inside is through as exhaust passage.It has beneficial effects, including: improve the starting success rate of gas turbine starter, especially in plateau, high altitude area;Provide heat insulation protection, effectively prevent hot air conduction to shell;Design light, convenient field carrying and transfer;Strong universality, adapt to multiple turbine starter models.

Description

Technical Field

[0001] This utility model relates to the field of aero-engine technology, and in particular to a windproof device for the exhaust damper of a gas turbine starter. Background Technology

[0002] A gas turbine starter is a device that uses compressed air to drive a turbine, thereby starting the engine. In high-altitude and high-velocity areas, due to the thin air and frequent unpredictable strong winds, external wind may backflow through the starter's exhaust damper, leading to slow or even failed starts. This phenomenon not only affects equipment performance but also has a significant adverse impact on engine field testing and operational missions. Currently, there is no effective solution to reliably address the starting failure problem in high-altitude, windy environments. Utility Model Content

[0003] The purpose of this invention is to provide a windproof device for the exhaust damper of a gas turbine starter. Through a cleverly designed structure and material combination, it effectively prevents backflow from the exhaust port, ensuring successful starting in high-altitude and windy environments.

[0004] This utility model is achieved using the following technical solution: a gas turbine starter exhaust damper windproof device, characterized in that it includes a housing, an upper cover, and a lower cover. The housing includes an outer shell and an inner shell, with heat-insulating material filling the space between the outer shell and the inner shell. The upper cover and the lower cover are respectively disposed on the upper and lower sides of the housing to form a sealed area between the outer shell and the inner shell. The interior of the housing is open, serving as an exhaust channel. This structural design can effectively guide the exhaust of high-temperature gas, while forming a stable heat-insulating protective layer through the multi-layered housing structure, improving overall safety and durability.

[0005] Furthermore, the insulation material filling the space between the outer shell and the inner shell is made of aluminum silicate fiber. This type of insulation material has excellent thermal insulation properties, which can effectively block the conduction of high-temperature exhaust gas to the outer shell, prevent overheating of the external surface, and improve the insulation effect.

[0006] Furthermore, the housing is assembled using stainless steel through bending and welding. This processing method makes the overall structure of the device robust and reliable, capable of withstanding external impacts and high-temperature vibrations in the working environment, thus enhancing the structural stability of the equipment.

[0007] Furthermore, the inner shell is made of high-temperature resistant 316 stainless steel. This material has excellent corrosion resistance and heat resistance, making it suitable for the high-temperature and high-humidity environment of gas turbines and extending the service life of the inner shell.

[0008] Furthermore, an asbestos rubber gasket is provided at the bottom of the housing, and the shape of the bottom of the housing is the same as the outer shape of the exhaust damper, so that the housing fits tightly with the machine body. The asbestos rubber gasket can further prevent heat conduction and improve airtightness, effectively preventing hot air leakage, while ensuring that the device is firmly fixed in the working state.

[0009] Furthermore, the housing is also equipped with a handle, which is hinged to the housing. This design facilitates manual installation and disassembly, improves the convenience of manual operation, and avoids burns caused by direct contact with high temperatures during use.

[0010] Furthermore, the side of the housing is provided with a mounting groove, and the bottom of the mounting groove is provided with a positioning hole, which is connected to the machine body through a positioning pin. The combination of the mounting groove and the positioning pin enables the device to be adapted to various models of equipment, ensuring stable installation and improving versatility and reliability.

[0011] Furthermore, a temperature sensor is installed on the inner side of the housing, which can monitor the surface temperature of the housing in real time and display it visually on the screen. This temperature sensor helps to monitor changes in the surface temperature of the equipment in real time, prevent overheating damage to the equipment or burns to personnel, realize intelligent early warning function, and improve safety during use.

[0012] The windproof device for the exhaust damper of a gas turbine starter described in this utility model has the following advantages:

[0013] Improve the starting success rate of gas turbine starters, especially in high-altitude and plateau regions;

[0014] It provides thermal insulation protection, effectively preventing hot airflow from being conducted to the outer casing, and also has a temperature display function;

[0015] The design is lightweight and easy to carry and transport in the field.

[0016] It is highly versatile and compatible with a variety of turbine starter models. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a windproof device for the exhaust damper of a gas turbine starter;

[0019] In the diagram, 1-outer shell, 2-inner shell, 3-upper cover, 4-lower cover, 5-asbestos rubber pad, 6-handle, 7-mounting slot, 8-positioning pin, 9-temperature sensor. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] like Figure 1 As shown, a gas turbine starter exhaust damper windproof device comprises a housing 1, an inner housing 2, an upper cover 3, a lower cover 4, an asbestos rubber pad 5, a handle 6, a mounting groove 7, a positioning pin 8, a temperature sensor 9, and other parts.

[0023] The outer shell 1 is made of stainless steel, formed by bending and welding, with a wall thickness of 0.6mm to ensure lightweight and rigidity. The space between the outer shell and the inner shell 2 is filled with aluminum silicate fiber insulation material, which effectively isolates heat transfer between the two shells, ensuring the device's thermal insulation performance. The inner shell 2 is made of 316 stainless steel (0Cr17Ni12Mo2), which is high-temperature resistant, corrosion-resistant, and suitable for the high-temperature exhaust environment of gas turbines.

[0024] The upper cover 3 and the lower cover 4 are welded together by machining parts and are respectively set at the upper and lower ends of the outer shell 1 and the inner shell 2, so that the outer shell 1 and the inner shell 2 form a closed space. They are bonded with high temperature resistant adhesive (casting adhesive). An asbestos rubber pad 5 is added to the bottom to further improve the heat insulation effect.

[0025] The handle 6 is made of stainless steel, bent and machined, and can rotate around the welded pin after being connected to it. After the windproof device is installed on the product, the handle 6 is lowered to both sides to prevent the flame and hot air from scorching the handle during exhaust and causing it to get hot.

[0026] The outer casing 1 has mounting slots 7 on both sides, and positioning holes at the bottom of the mounting slots 7. These slots are connected to the machine body via positioning pins 8. The positioning pin holes are designed in various sizes to fit different machine body models. The positioning pins 8 are secured to the outer casing 1 with anti-loss steel wire ropes to prevent parts from being lost during disassembly.

[0027] In addition, a temperature sensor 9 is installed on the inside of the outer shell 1. The temperature sensor 9 is a K-type thermocouple temperature sensor, which can monitor the temperature of the outer shell surface in real time and display it visually on the display screen. This effectively monitors the current working temperature status of the windshield, provides timely warning of high temperature risks, prevents users from being burned by contact, and improves safety.

[0028] The display screen can be directly installed on the outside of the housing 1 to allow operators to intuitively judge the temperature status, or the display screen can be set on other devices to receive the signal from the temperature sensor 9 via wireless signal. In this way, the heat resistance requirements of the display screen are lower.

[0029] The above embodiments describe the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Modifications and variations made by those skilled in the art without departing from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A windproof device for the exhaust damper of a gas turbine starter, characterized in that, The device includes a housing, an upper cover (3), and a lower cover (4). The housing includes an outer shell (1) and an inner shell (2). The outer shell (1) and the inner shell (2) are filled with heat insulation material. The upper cover (3) and the lower cover (4) are respectively set on the upper and lower sides of the housing to form a sealed area between the outer shell (1) and the inner shell (2). The interior of the housing is open as an exhaust channel.

2. The gas turbine starter exhaust damper windproof device according to claim 1, characterized in that, The insulating material filling the space between the outer shell (1) and the inner shell (2) is aluminum silicate fiber.

3. The gas turbine starter exhaust damper windproof device according to claim 1, characterized in that, The shell is assembled by bending and welding stainless steel.

4. The gas turbine starter exhaust damper windproof device according to claim 3, characterized in that, The inner shell (2) is made of high temperature resistant 316 stainless steel.

5. A gas turbine starter exhaust damper windproof device according to claim 1, characterized in that, The bottom of the housing is provided with an asbestos rubber pad (5), and the shape of the bottom of the housing is the same as the shape of the outer side of the exhaust damper, so that the housing fits tightly with the machine body.

6. A gas turbine starter exhaust damper windproof device according to claim 1, characterized in that, The housing is also provided with a handle (6), which is hinged to the housing.

7. A gas turbine starter exhaust damper windproof device according to claim 1, characterized in that, The side of the housing is also provided with a mounting groove (7), and the bottom of the mounting groove (7) is provided with a positioning hole, which is connected to the body through a positioning pin (8).

8. A gas turbine starter exhaust damper windproof device according to claim 1, characterized in that, A temperature sensor (9) is installed on the inside of the outer casing (1), which can monitor the temperature of the outer casing surface in real time and display it visually on the display screen.

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