Seam type folded plate silencer applied to gas inlet system of gas turbine

Abstract

The utility model provides a seaming type folded plate silencer applied to an air inlet system of a gas turbine. The seaming type folded plate silencer comprises an end face plate 1 and silencing pieces I 2. The silencing sheet II 3, the silencing sheet III 4 and the like. All the parts are connected in a seaming mode, welding work is avoided, the possibility of welding slag and welding beans is eradicated, and the cleanliness of inlet air flow is guaranteed. And the stability and the safety of the whole gas turbine system are improved. Stress concentration material deformation in the welding process is avoided, the risk of generating defects is reduced, and the reliability of products is improved. The manufacturing process is simplified, the production efficiency is improved, and the light weight of the structure is achieved. Parts are easier to disassemble and replace, and the maintenance difficulty and cost are reduced. And the material selection range of the structural design is widened. The flatness of the product and the external connection precision are guaranteed, and the appearance quality of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas turbine silencers, in particular to a bite-mouth silencer applied to an air intake system of a gas turbine. Background Art

[0002] As the core equipment for power generation, the efficient and stable operation of gas turbines is crucial, which depends largely on the cleanliness of the intake airflow. Although the muffler equipment installed in the intake channel has a noise reduction effect, if it is not properly maintained, the easy-to-fall-off objects inside, such as welding slag and welding beans, will seriously threaten the safe operation of the gas turbine. Once these falling objects enter the gas turbine, they may cause damage to the compressor blades, thrust bearings, hot end components, and rotors, which will not only reduce the power generation efficiency of the unit, but may also cause safety accidents and threaten the stability and safety of the entire system.

[0003] In the prior art, the cleanliness of the gas turbine intake airflow is mostly ensured by adding an intake filter device to the air inlet, but the handling of foreign matter inside the intake passage, such as in the muffler, is often overlooked. Conventional mufflers are mostly welded structures. For such equipment with a large amount of welding, conventional vacuum dust removal and sealed packaging are difficult to completely remove foreign matter such as welding slag and welding beans that may appear inside the equipment during the manufacturing process, increasing the risk of damage to the gas turbine. Therefore, in order to meet the intake noise reduction requirements and avoid the damage to the gas turbine caused by welding slag, welding beans and foreign matter generated by welding. Therefore, a bite-type folding plate muffler for use in the gas turbine intake system was developed. Summary of the invention

[0004] In view of the above technical problems, the utility model provides a bite-type folded plate muffler applied to the air intake system of a gas turbine.

[0005] In order to achieve the above object, the technical solution adopted by the utility model is: a bite-type folded plate muffler applied to the gas turbine intake system, including an end plate, a muffler plate I, a middle muffler plate II, a muffler plate III and other components.

[0006] The bite-type folded plate muffler applied to the gas turbine air intake system has a structure in which end panels are arranged at both ends, and the end panels are provided with mounting openings matching the muffler sheets.

[0007] The two ends of the muffler sheet I, muffler sheet II and muffler sheet III are respectively inserted into the end panels at the two ends, and the order of the muffler sheets inserted from top to bottom is muffler sheet II, muffler sheet I and muffler sheet III. In the present invention, the number of muffler sheets I is set to 2, and the specific number can be adjusted according to the actual application.

[0008] The depth of insertion of the silencer pieces I, II and III into the end panel is determined according to the actual working conditions, and is generally not more than 20 mm. After being inserted into the designated position, the silencer pieces I, II and III are connected to the end panel by stamping and biting in turn to form a silencer frame.

[0009] The end panel is made by bending a plate, and the four sides of the plate are bent by a bending machine. The end panel after processing is a box-shaped structure. A circular hole is opened on the bent edge of the end panel as the flange installation edge facing the outside after the subsequent muffler assembly is completed.

[0010] The muffler sheet I comprises a perforated plate I, a perforated plate II, a blocking plate I, a rib plate I, a sound absorbing material and other components. The perforated plate I and the perforated plate II are connected by plug-in bite, and the rib plate I, the blocking plate I and the perforated plate I and the perforated plate II are connected by stamping bite.

[0011] The orifice plate I is made by bending a plate, and through the bending process, the plate is folded into an M-shaped structure, with U-shaped sockets reserved at both ends. The orifice plate I needs to be punched in different areas to avoid bending lines and punching points appearing in the orifice plate area, thereby damaging the orifice plate body structure.

[0012] The orifice plate II is made by bending a plate. Through the bending process, the plate is folded into a W-shaped structure, with plugs reserved at both ends, which are plugged and connected with the sockets reserved at both ends of the orifice plate I. The orifice plate II needs to be punched in different areas to avoid bending lines and punching points appearing in the orifice plate area, which will damage the orifice plate structure.

[0013] The blocking plate I is made by bending the four sides of the plate, and its outer contour is a rhombus, which is used to match the outer shapes of the orifice plates I and II. After processing, the blocking plate I is a box-shaped structure, and the blocking plates I are set at both ends of the muffler plate I.

[0014] The structure of the rib plate I is the same as that of the blocking plate I. It is arranged inside the bite-type silencer to play the role of auxiliary support and structural reinforcement. The thickness of the plate can be appropriately reduced compared to the blocking plate I to save costs.

[0015] The sound absorbing material is high-quality ultra-fine glass wool, and the glass wool is wrapped by glass cloth to ensure that the glass wool will not be scattered due to the impact of airflow.

[0016] The muffler II includes orifice plate III, orifice plate IV, blocking plate II, rib plate II, sound absorbing material and other components. Its structure is similar to that of the muffler I, except that its outer contour is an M-shaped structure with one side flat. The detailed structure is not described here. It can be regarded as the muffler I with the top M-shaped sharp corner cut off and its bottom structure retained.

[0017] The muffler III includes orifice plate V, orifice plate VI, blocking plate III, rib plate III, sound absorbing material and other components. Its structure is similar to that of muffler I, except that its outer contour is an M-shaped structure with one side flat. The detailed structure is not described here. It can be regarded as a bite-type muffler I with the bottom M-shaped sharp corner cut off and its top structure retained. Beneficial Effects

[0018] The utility model changes all structures exposed to the intake airflow into bite-joint connections, thereby avoiding welding work, eliminating the possibility of welding slag and welding beans, ensuring the cleanliness of the intake airflow, and improving the stability and safety of the entire gas turbine system.

[0019] Compared with the traditional welded structure muffler, this new type of muffler avoids welding work, avoids stress concentration and material deformation during welding, reduces the risk of defects, and improves product reliability.

[0020] The utility model adopts bite connection, simplifies the manufacturing process, improves production efficiency and realizes lightweight structure.

[0021] In terms of maintenance, the utility model has the advantages of being easier to disassemble and replace parts, thereby reducing maintenance difficulty and cost.

[0022] The material of the utility model has wide adaptability. Some special materials may not be suitable for welding, or the performance may be affected after welding. The use of the utility model can make the material more widely used, broadening the material selection range of the structural design.

[0023] The utility model has no welding work, reduces deformation, ensures the flatness of the product and the external connection accuracy, and improves the appearance quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of an embodiment of the mid-end panel of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of an embodiment of the sound-absorbing sheet I in the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of an embodiment of the sound-absorbing sheet II in the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of an embodiment of the sound-absorbing sheet III in the utility model;

[0029] Figure 6This is a schematic diagram of the structure of the orifice plate and the orifice plate bite connection structure in the utility model;

[0030] Figure 7 It is a schematic diagram of the punching connection structure of the orifice plate and the blocking plate in the utility model. DETAILED DESCRIPTION

[0031] Example 1: Figure 1 As shown, a bite-type folded plate muffler used in a gas turbine intake system includes an end panel 1, a muffler plate I2, a muffler plate II3, a muffler plate III4 and other components.

[0032] Further Figure 1 As shown: the bite-type folded plate muffler applied to the gas turbine intake system has a structure in which end panels 1 are arranged at both ends, and the end panels 1 are provided with mounting openings matching the muffler plates.

[0033] Further Figure 1 As shown: the two ends of the muffler sheet Ⅰ2, muffler sheet Ⅱ3, and muffler sheet Ⅲ4 are respectively inserted into the end panels 1 at both ends, and the order of the muffler sheets inserted from top to bottom is muffler sheet Ⅱ3, muffler sheet Ⅰ2, and muffler sheet Ⅲ4. In this new use, the number of muffler sheets Ⅰ2 is set to 2, and the specific number can be adjusted according to actual application.

[0034] Further Figure 1 As shown: the depth of the muffler sheet I2, muffler sheet II3, and muffler sheet III4 inserted into the end panel 1 is determined according to the actual working conditions, and generally does not exceed 20 mm. After being inserted into the designated position, the muffler sheet I2, muffler sheet II3, and muffler sheet III4 are connected with the end panel 1 by stamping and biting in turn to form the muffler frame.

[0035] Further Figure 2 As shown: the end panel 1 is made by bending a plate, and the four sides of the plate are bent by a bending machine; the end panel 1 after processing is a box-shaped structure. A circular hole is opened on the bent edge of the end panel 1, which serves as the flange installation edge facing outward after the subsequent muffler assembly is completed.

[0036] Further Figure 3 As shown: the sound-absorbing plate Ⅰ2 includes components such as a perforated plate Ⅰ5, a perforated plate Ⅱ6, a blocking plate Ⅰ7, a rib plate Ⅰ8, and a sound-absorbing material 9.

[0037] Further Figure 3 As shown: the silencer plate Ⅰ2, orifice plate Ⅰ5 and orifice plate Ⅱ6 are connected by plug-in bite, and the blocking plate Ⅰ7, rib plate Ⅰ8 and orifice plate Ⅰ5, orifice plate Ⅱ6 are all connected by stamping bite.

[0038] Further Figure 3As shown: the orifice plate I5 is made by bending a plate, and through the bending process, the plate is folded into an M-shaped structure, with U-shaped sockets reserved at both ends. The orifice plate I5 needs to be punched in different areas to avoid bending lines and punching points appearing in the orifice plate area, which would damage the orifice plate structure.

[0039] Further Figure 3 As shown: the orifice plate II 6 is made by bending a plate. Through the bending process, the plate is folded into a W-shaped structure, with plugs reserved at both ends, which are matched with the sockets reserved at both ends of the orifice plate I 5 for plug-in connection. The orifice plate II 6 needs to be punched in different areas to avoid bending lines and punching points appearing in the orifice plate area, which will damage the orifice plate body structure.

[0040] Further Figure 3 As shown: the blocking plate Ⅰ7 is made by bending the four sides of the plate, and its outer contour is a diamond shape to match the outer shapes of the orifice plates Ⅰ5 and Ⅱ6; the blocked plate Ⅰ7 after processing is a box-shaped structure, and the blocking plates Ⅰ7 are set at both ends of the silencer piece Ⅰ2.

[0041] Further Figure 3 As shown: the structure of the rib plate Ⅰ8 is the same as that of the blocking plate Ⅰ7, and is arranged inside the bite-type silencer to play the role of auxiliary support and strengthening structure. The thickness of the plate can be appropriately reduced compared to the blocking plate Ⅰ7 to save costs.

[0042] Further Figure 3 As shown: the sound absorbing material 9 is high-quality ultra-fine glass wool, and the glass wool is wrapped by glass cloth to ensure that the glass wool will not be scattered due to the impact of airflow.

[0043] Further Figure 4 As shown: the silencer sheet II3 includes components such as a perforated plate III10, a perforated plate IV11, a blocking plate II12, a rib plate II13, and a sound-absorbing material 14; its structure is similar to that of the silencer sheet I2, except that its outer contour is an M-shaped structure with one side being flat, and the detailed structure will not be described here; it can be regarded as the silencer sheet I2 with the top M-shaped sharp corner cut off, retaining its bottom structure.

[0044] Further Figure 5 As shown: the muffler III4 includes orifice plate V15, orifice plate VI16, blocking plate III17, rib plate III18, sound absorbing material 19 and other components; its structure is similar to that of the muffler I2, except that its outer contour is an M-shaped structure with one side flat, and the detailed structure is not described here. It can be regarded as the bite-type muffler I2 with the bottom M-shaped sharp corner cut off and its top structure retained.

Claims

1. A bite-type folded plate muffler used in a gas turbine intake system, characterized in that: It includes end panels, silencer sheet I; silencer sheet II and silencer sheet III components; the bite-type folding plate silencer used in the gas turbine intake system has a structure in which end panels are arranged at both ends, and the end panels are provided with mounting openings matching the silencer sheets; the silencer sheets I, II and III are respectively inserted into the end panels at both ends, and the order of insertion of the silencer sheets from top to bottom is silencer sheet II, silencer sheet I and silencer sheet III; the number of silencer sheets I is set to 2, and the specific number can be adjusted according to actual application.

2. The bite-type folded plate muffler used in the gas turbine intake system according to claim 1, characterized in that: The depth of insertion of the silencer pieces I, II and III into the end panel is determined according to the actual working conditions, and is generally not more than 20 mm. After being inserted into the designated position, the silencer pieces I, II and III are connected to the end panel by stamping and biting in turn to form a silencer frame.

3. The bite-type folded plate muffler used in the gas turbine intake system according to claim 1 is characterized in that: The end panel is made by bending a plate, and the four sides of the plate are bent by a bending machine; the end panel after processing is a box-shaped structure; a circular hole is opened on the bent edge of the end panel, which serves as an external flange installation edge after the subsequent muffler assembly is completed.

4. The bite-type folded plate muffler used in the gas turbine intake system according to claim 1 is characterized in that: The sound-absorbing plate I comprises a perforated plate I, a perforated plate II, a blocking plate I, a rib plate I and a sound-absorbing material component; the perforated plate I and the perforated plate II are connected by plug-in bite, and the rib plate I, the blocking plate I and the perforated plate I and the perforated plate II are connected by stamping bite.

5. The bite-type folded plate muffler used in the gas turbine intake system according to claim 4 is characterized in that: The orifice plate I is made by bending a plate. Through the bending process, the plate is folded into an M-shaped structure, with U-shaped sockets reserved at both ends. The orifice plate I needs to be punched in different areas to avoid bending lines and punching points appearing in the orifice plate area, thereby damaging the orifice plate body structure.

6. The bite-type folded plate muffler used in the gas turbine intake system according to claim 4 is characterized in that: The orifice plate II is made by bending a plate. Through the bending process, the plate is folded into a W-shaped structure, with plug-ins reserved at both ends, which cooperate with the sockets reserved at both ends of the orifice plate I for plug-in connection; the orifice plate II needs to be punched in different areas to avoid bending lines and punching points appearing in the orifice plate area, thereby damaging the orifice plate body structure.

7. The bite-type folded plate muffler used in the gas turbine intake system according to claim 4 is characterized in that: The blocking plate I is made by bending the four sides of the plate, and its outer contour is a diamond shape to match the outer shapes of the orifice plates I and II; after processing, the blocking plate I is a box-shaped structure, and blocking plates I are set at both ends of the silencer I.

8. The bite-type folded plate muffler used in the gas turbine intake system according to claim 4 is characterized in that: The structure of the rib plate I is the same as that of the blocking plate I. It is arranged inside the bite-type silencer to play the role of auxiliary support and structural reinforcement. The thickness of the plate can be appropriately reduced compared to the blocking plate I to save costs.

9. The bite-type folded plate muffler used in the gas turbine intake system according to claim 4 is characterized in that: The sound absorbing material is high-quality ultra-fine glass wool, and the glass wool is wrapped by glass cloth to ensure that the glass wool will not be scattered due to the impact of airflow.

10. The bite-type folded plate muffler used in the gas turbine intake system according to claim 1 is characterized in that: The muffler sheet II comprises a perforated plate III, a perforated plate IV, a blocking plate II, a rib plate II and sound absorbing material components; its structure is similar to that of the muffler sheet I, except that its outer contour is an M-shaped structure with one side being flat; it can be regarded as the muffler sheet I with the top M-shaped sharp corner cut off and its bottom structure retained.

11. The bite-type folded plate muffler used in the gas turbine intake system according to claim 1 is characterized in that: The silencer III comprises a perforated plate V, a perforated plate VI, a blocking plate III, a rib plate III and a sound-absorbing material component; its structure is similar to that of the silencer I, except that its outer contour is an M-shaped structure with one side being flat; it can be regarded as a bite-type silencer I with the bottom M-shaped sharp corner cut off, while retaining its top structure.

Images