Flow guide device applied to exhaust channel of gas turbine

Abstract

The utility model provides a flow guide device applied to an exhaust channel of a gas turbine. The flow guide device mainly comprises a frame, a pore plate, a flow guide inclined sheet 01, a flow guide inclined sheet 02, a flow guide inclined sheet 03, a flow guide shoulder sheet, rivets and glass silk floss. The exhaust channel is characterized in that a flow guide device is mounted in the exhaust channel of the gas turbine, the flow direction of airflow can be changed, airflow resistance loss is reduced, the circulation area is increased, the air circulation efficiency is improved, the internal environment temperature of a cabin of the gas turbine is reduced, and meanwhile the sound insulation requirement can be met. And effective use guarantee can be provided for users, and the popularization value is high.

Description

Technical Field

[0001] The utility model relates to a flow guiding device, in particular to a flow guiding device applied to an exhaust passage of a gas turbine, belonging to the field of exhaust of gas turbines. Background Art

[0002] The gas turbine exhaust duct allows the air inside the gas turbine to flow to the outside, reducing the air temperature inside the gas turbine and enhancing the working efficiency of the gas turbine.

[0003] In the prior art, the fans under the gas turbine exhaust duct are one main and one backup. When only one fan is turned on, the exhaust duct system does not have a guide device, and the air flow cannot flow evenly through the duct, which is not conducive to the exhaust function of the gas turbine and restricts the daily operation of the gas turbine.

[0004] In order to improve the exhaust function of the gas turbine exhaust duct, it is necessary to add a guide device, which can make the airflow in the exhaust duct flow evenly and effectively, reduce the internal airflow resistance loss, increase the flow area, and have the function of regulating airflow guidance. It can make the high-temperature gas inside the gas turbine fully and effectively discharged and reduce the internal temperature of the gas turbine system. It is widely used in gas turbine supporting systems. Summary of the invention

[0005] The utility model provides a flow guide device for an exhaust passage of a gas turbine, so as to achieve the function of uniform flow of air and reduce the loss of air flow resistance.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a guide device for the exhaust duct of a gas turbine, which consists of: a frame, a perforated plate, a guide bevel 01, a guide bevel 02, a guide bevel 03, a guide shoulder, rivets, and glass wool; it has the advantages of simple structure and stable performance; through the guide bevel 01, the guide bevel 02, the guide bevel 03 and the guide shoulder on the guide device, the airflow is made to flow evenly, the airflow resistance loss is reduced, and the air circulation efficiency inside the gas turbine can be more effectively improved, and the internal space temperature of the gas turbine can be reduced.

[0007] The frame is formed by bending and welding the outer plates.

[0008] The orifice plate is made of stainless steel, formed by punching and drilling, and connected to the frame by riveting.

[0009] The guide bevel 01, guide bevel 02, guide bevel 03 and guide shoulder are formed by bending and connected to the orifice plate by welding.

[0010] The glass wool is a sound absorbing material and is filled in the cavity between the orifice plate and the frame.

[0011] The guide bevel 01 is connected to the periphery of the orifice plate by welding, and the other guide bevels 02, guide bevels 03 and guide shoulders are also connected to the orifice plate by welding.

[0012] The orifice plate and the frame are connected by rivets, and glass wool is filled between the orifice plate and the frame.

[0013] The feature is that the frame can realize airflow circulation from inside the frame to meet the exhaust function of the gas turbine.

[0014] The guide bevel 01, guide bevel 02, guide bevel 03 and guide shoulder can change the flow direction of the airflow, so that the airflow flows evenly inside the channel.

[0015] The perforated plate and glass wool can effectively provide sound insulation. Beneficial Effects

[0016] The utility model provides a flow guide device for an exhaust passage of a gas turbine, which can change the flow direction of airflow, reduce airflow resistance loss, increase the flow area, and increase air flow efficiency.

[0017] The utility model provides a flow guide device for an exhaust passage of a gas turbine, which enables the airflow to flow fully and reduces the internal ambient temperature of the engine room of the gas turbine.

[0018] The utility model provides a flow guide device for an exhaust passage of a gas turbine, which can reduce noise and reduce the impact of the gas turbine on the external environment when it is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a three-dimensional structural diagram of a flow guide device for an exhaust passage of a gas turbine.

[0020] Figure 2 The present invention is a cross-sectional view of a flow guide device for an exhaust passage of a gas turbine.

[0021] Figure 3 The present invention is a partial installation diagram of a guide vane of a guide device for an exhaust passage of a gas turbine.

[0022] Figure 4 The present invention is a partial installation diagram of a perforated plate and glass wool of a flow guide device for an exhaust passage of a gas turbine.

[0023] 1. Frame; 2. Orifice plate; 3. Guide bevel 01; 4. Guide shoulder; 5. Guide bevel 02; 6. Guide bevel 03; 7. Rivet; 8. Glass wool. DETAILED DESCRIPTION

[0024] The technical solution provided by the utility model is further described in detail below in conjunction with the drawings, the description of the drawings and the embodiments.

[0025] Example 1: Figure 1 , as shown in a three-dimensional structural diagram of a gas turbine exhaust passage guide device; a gas turbine exhaust passage guide device, comprising: a frame (1), a perforated plate (2), a guide bevel 01 (3), a guide bevel 02 (5), a guide bevel 03 (6), a guide shoulder (4), a rivet (7), and glass wool (8); the airflow circulates through the different deflection angles of the guide bevel, thereby achieving a guide effect.

[0026] like Figure 2 , a cross-sectional view of a guide device for an exhaust passage of a gas turbine; guide bevels 01 (3), guide bevels 02 (5), guide bevels 03 (6), and guide shoulders (4) are respectively installed in specified areas of the orifice plate to form a guide structure through specific angle direction requirements.

[0027] like Figure 3 , a partial installation diagram of a guide vane of a guide device for an exhaust passage of a gas turbine; the guide bevel 01 (3) is connected to the periphery of the orifice plate by welding, and the other guide bevels 02 (5), guide bevels 03 (6) and guide shoulders (4) are also connected to the orifice plate by welding.

[0028] like Figure 4 , a partial installation diagram of an orifice plate and glass wool of a flow guide device for an exhaust passage of a gas turbine; the orifice plate (2) and the frame (1) are riveted together using rivets (7), and the glass wool (8) is filled between the orifice plate (2) and the frame (1).

[0029] To sum up: the utility model can provide users with a guide device for the exhaust duct of a gas turbine, which can use guide vanes and guide shoulders to adjust the direction of the airflow, thereby achieving uniform airflow, reducing flow resistance losses, increasing the flow area, and effectively improving the exhaust efficiency. It can further reduce the internal temperature of the gas turbine, improve the working efficiency of the gas turbine, and can provide users with effective use guarantees, which is of great promotion value.

[0030] The above content is only used to help explain and understand the technical solution of the utility model and cannot be understood as a limitation thereto; non-essential improvements, adjustments or replacements made by technical personnel in this field based on the contents of this specification are all within the scope of protection required by the utility model.

Claims

1. A flow guide device for an exhaust passage of a gas turbine, characterized in that: The invention comprises a frame, an orifice plate, a guide bevel 01, a guide bevel 02, a guide bevel 03, a guide shoulder (4), rivets, and glass wool; the frame is formed by bending an outer plate and then welding; the orifice plate is made of stainless steel, formed by punching and drilling, and connected to the frame by riveting; the guide bevel 01 (3), the guide bevel 02 (5), the guide bevel 03 (6), and the guide shoulder (4) are all formed by bending and connected to the orifice plate by welding; the guide bevel 01 (3) is connected to the periphery of the orifice plate by welding, and the other guide bevels 02 (5), the guide bevel 03 (6) and the guide shoulder (4) are also connected to the orifice plate by welding; the orifice plate (2) and the frame (1) are riveted by rivets (7), and glass wool (8) is filled between the orifice plate (2) and the frame (1).

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