Gas turbine sealing ring capable of enhancing sealing performance

Abstract

The utility model discloses a gas turbine sealing ring capable of enhancing sealing performance, which comprises a sealing ring body, the sealing ring body is arranged in a sealing seat, a T-shaped clamping groove is arranged on the inner wall of the sealing seat, first sealing teeth are fixedly arranged on the outer side of a first sealing gasket on the sealing ring body, and a second sealing gasket is arranged on the outer side of the first sealing gasket. A first sealing disc is fixedly installed on the circumferential inner wall of the first sealing gasket, and meanwhile an assembling base is fixedly installed on the side wall of the first sealing gasket. According to the gas turbine sealing ring capable of enhancing the sealing performance, a sealing ring body is clamped and fixed in a T-shaped clamping groove formed in the inner wall of a sealing seat, the sealing ring body mainly comprises a first sealing gasket and a second sealing gasket, and second sealing teeth and first sealing teeth on the outer sides of the first sealing gasket and the second sealing gasket are combined together to form the T-shaped clamping seat; the size of the T-shaped clamping seat is matched with that of the T-shaped clamping groove, and the T-shaped clamping seat is clamped in the T-shaped clamping groove to form effective radial sealing; the sealing effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of gas turbine accessories, and specifically relates to a gas turbine seal ring with enhanced sealing performance. Background Technique

[0002] As a core equipment in the fields of power generation and drive, the performance of the sealing system of F-class heavy-duty gas turbines is directly related to the safety, efficiency and long-term operation stability of the units; F-class heavy-duty gas turbines, with their high efficiency, high reliability and broad application prospects, have become an indispensable power device in modern industry; as a type of internal combustion engine, gas turbines generate high-temperature and high-pressure gases by burning fuel (mainly natural gas) with air to drive the blades to do work and achieve energy conversion; however, with the continuous improvement of the unit operation parameters, especially the rise of the initial gas temperature, more stringent requirements are put forward for the performance of the sealing system.

[0003] Labyrinth seal is one of the commonly used sealing forms in gas turbines and is widely used due to its simple structure and low cost; however, with the improvement of the unit operation parameters, the limitations of the labyrinth seal become increasingly prominent; in a high-temperature and high-pressure environment, the leakage of the labyrinth seal increases significantly, resulting in a decrease in the unit efficiency; at the same time, the wear of the sealing teeth is aggravated, shortening the service life of the sealing system. Content of the Utility Model

[0004] The purpose of the utility model is to provide a gas turbine seal ring with enhanced sealing performance to solve the defects mentioned in the above background technique.

[0005] To achieve the above purpose, a gas turbine seal ring with enhanced sealing performance is provided, including a seal ring body. The seal ring body is installed inside a seal seat, and a T-shaped card slot is opened on the inner wall of the seal seat. A first sealing tooth is fixedly installed on the outside of the first sealing pad on the seal ring body, and a first sealing disc is fixedly installed on the circumferential inner wall of the first sealing pad. At the same time, an assembly seat is fixedly installed on the side wall of the first sealing pad.

[0006] Preferably, the size of the seal ring body is adapted to that of the T-shaped card slot, and the seal ring body is clamped inside the T-shaped card slot through the first sealing tooth and the second sealing tooth on the outside.

[0007] Preferably, both the first sealing pad and the second sealing pad are annular structures made of rubber material, and the first sealing pad and the second sealing pad are butt-jointed and assembled through the assembly seat and the assembly slot.

[0008] Preferably, three groups of assembly seats are evenly installed on the side wall of the first sealing pad, and three groups of assembly slots are evenly opened on the side wall of the second sealing pad.

[0009] Preferably, the three sets of assembling seats are respectively inserted into the three sets of assembling grooves. Both the assembling seats and the assembling grooves are arc-shaped, and the height of the assembling seats is equal to the depth of the assembling grooves.

[0010] Preferably, a second sealing tooth is fixedly installed on the outer circumference of the second sealing gasket, and a second sealing disc is fixedly installed on the inner wall of the circumference of the second sealing gasket. At the same time, the second sealing tooth and the first sealing tooth are combined to form a T-shaped clamping seat, and the T-shaped clamping seat is adapted to the size of the T-shaped clamping groove, and the T-shaped clamping seat is clamped inside the T-shaped clamping groove.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, the sealing ring body is clamped and fixed inside the T-shaped clamping groove opened on the inner wall of the sealing seat. The sealing ring body mainly includes a first sealing gasket and a second sealing gasket. The second sealing tooth and the first sealing tooth on the outer sides of the first sealing gasket and the second sealing gasket are combined to form a T-shaped clamping seat. The T-shaped clamping seat is adapted to the size of the T-shaped clamping groove, and the T-shaped clamping seat is clamped inside the T-shaped clamping groove, forming an effective radial seal, improving the sealing effect.

[0013] 2. In the present utility model, the sealing ring body mainly includes a first sealing gasket and a second sealing gasket. The first sealing gasket and the second sealing gasket are respectively inserted into the three sets of assembling grooves through three sets of assembling seats. The sealing ring body is of a split design. The split design enables the sealing ring to be installed in parts in the case of limited installation space, avoiding the problem that the integral sealing ring is difficult to be accurately installed in a narrow space. The snap-fixing method is simple and fast, does not require complex tools and professional skills, and greatly improves the installation efficiency. When the sealing ring body is worn or damaged, the split structure can replace one of them separately or repair a specific part without replacing the entire sealing component, reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a front view schematic diagram of the structure of the present utility model;

[0015] Figure 2 is a sectional structure schematic diagram of the sealing ring body and the sealing seat;

[0016] Figure 3 is a schematic diagram of the structure of the sealing ring body;

[0017] Figure 4 is Figure 3 the rear view of;

[0018] Figure 5 is a sectional structure schematic diagram of the sealing ring body.

[0019] Reference numerals in the figure: 1, sealing seat; 2, T-shaped card slot; 3, sealing ring body; 31, first sealing pad; 32, first sealing disc; 33, first sealing tooth; 34, assembling seat; 341, assembling groove; 35, second sealing pad; 36, second sealing disc; 37, second sealing tooth. Detailed implementation manners

[0020] Please refer to Figures 1-5 , the present utility model provides a gas turbine sealing ring with enhanced sealing performance, including a sealing ring body 3. The sealing ring body 3 is installed inside a sealing seat 1, and a T-shaped card slot 2 is opened on the inner wall of the sealing seat 1. A first sealing tooth 33 is fixedly installed on the outer side of a first sealing pad 31 on the sealing ring body 3, and a first sealing disc 32 is fixedly installed on the circumferential inner wall of the first sealing pad 31. At the same time, an assembling seat 34 is fixedly installed on the side wall of the first sealing pad 31.

[0021] Working principle: When in use, the sealing ring body 3 is clamped and fixed inside the T-shaped card slot 2 opened on the inner wall of the sealing seat 1. The sealing ring body 3 mainly includes a first sealing pad 31 and a second sealing pad 35. The second sealing tooth 37 and the first sealing tooth 33 on the outer sides of the first sealing pad 31 and the second sealing pad 35 are combined together to form a T-shaped clamping seat. The T-shaped clamping seat is adapted to the size of the T-shaped card slot 2, and the T-shaped clamping seat is clamped inside the T-shaped card slot 2 to form an effective radial seal, improving the sealing effect. The first sealing pad 31 and the second sealing pad 35 are respectively inserted into three groups of assembling grooves 341 through three groups of assembling seats 34. Both the assembling seat 34 and the assembling groove 341 are arc-shaped. The sealing ring body 3 is of a split design. The split design enables the sealing ring to be installed in parts in the case of limited installation space, avoiding the problem that the integral sealing ring is difficult to be accurately installed in a narrow space. The snap-fixing method is simple and fast, does not require complex tools and professional skills, and greatly improves the installation efficiency. When the sealing ring body 3 is worn or damaged, the split structure can replace one of the pieces separately or repair specific parts without replacing the entire sealing component, reducing the maintenance cost.

[0022] As a preferred implementation manner, the sealing ring body 3 is adapted to the size of the T-shaped card slot 2, and the sealing ring body 3 is clamped inside the T-shaped card slot 2 through the first sealing tooth 33 and the second sealing tooth 37 on the outer side.

[0023] Both the first sealing pad 31 and the second sealing pad 35 are annular structures made of rubber material, and the first sealing pad 31 and the second sealing pad 35 are butted and assembled through the assembling seat 34 and the assembling groove 341.

[0024] As a preferred implementation manner, three groups of assembling seats 34 are evenly installed on the side wall of the first sealing pad 31, and three groups of assembling grooves 341 are evenly opened on the side wall of the second sealing pad 35.

[0025] As a preferred embodiment, the three sets of assembly seats 34 are respectively inserted into the interiors of the three sets of assembly grooves 341. Both the assembly seats 34 and the assembly grooves 341 are arc-shaped, and at the same time, the height of the assembly seats 34 is equal to the depth of the assembly grooves 341.

[0026] A second sealing tooth 37 is fixedly installed on the outer circumference of the second gasket 35, and a second sealing disc 36 is fixedly installed on the inner circumferential wall of the second gasket 35. At the same time, the second sealing tooth 37 and the first sealing tooth 33 are combined to form a T-shaped clamping seat, and the T-shaped clamping seat is adapted to the size of the T-shaped clamping groove 2, and the T-shaped clamping seat is clamped inside the T-shaped clamping groove 2.

Claims

1. A gas turbine sealing ring with enhanced sealing performance, comprising a sealing ring body (3), characterized in that: The sealing ring body (3) is installed inside the sealing seat (1), and a T-shaped slot (2) is provided on the inner wall of the sealing seat (1). A first sealing tooth (33) is fixedly installed on the outer side of a first sealing gasket (31) on the sealing ring body (3), and a first sealing disc (32) is fixedly installed on the circumferential inner wall of the first sealing gasket (31), and an assembly seat (34) is fixedly installed on the side wall of the first sealing gasket (31).

2. A gas turbine sealing ring with enhanced sealing performance according to claim 1, characterized in that: The sealing ring body (3) is adapted to the size of the T-shaped slot (2), and the sealing ring body (3) is clamped inside the T-shaped slot (2) via first sealing teeth (33) and second sealing teeth (37) on the outside.

3. A gas turbine sealing ring with enhanced sealing performance according to claim 1, characterized in that: The first sealing gasket (31) and the second sealing gasket (35) are both annular structures made of rubber material, and the first sealing gasket (31) and the second sealing gasket (35) are butt-jointed and assembled via an assembling seat (34) and an assembling groove (341).

4. A gas turbine sealing ring with enhanced sealing performance according to claim 3, characterized in that: Three groups of assembly seats (34) are evenly installed on the side wall of the first sealing gasket (31), and three groups of assembly grooves (341) are evenly opened on the side wall of the second sealing gasket (35).

5. A gas turbine sealing ring with enhanced sealing performance according to claim 4, characterized in that: The three groups of assembly seats (34) are respectively inserted into the inside of the three groups of assembly grooves (341), and the assembly seats (34) and the assembly grooves (341) are both arranged in an arc shape, and the height of the assembly seats (34) is equal to the depth of the assembly grooves (341).

6. A gas turbine sealing ring with enhanced sealing performance according to claim 3, characterized in that: A second sealing tooth (37) is fixedly mounted on the outer circumferential surface of the second sealing gasket (35), and a second sealing disc (36) is fixedly mounted on the inner circumferential surface of the second sealing gasket (35). The second sealing tooth (37) and the first sealing tooth (33) are combined together to form a T-shaped card seat. The size of the T-shaped card seat matches that of the T-shaped card slot (2), and the T-shaped card seat is card-engaged inside the T-shaped card slot (2).

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