Power equipment protection device for gas turbine combined cycle power plant

Abstract

The invention discloses a gas turbine combined cycle power plant power equipment protection device, which relates to the technical field of protection, and comprises a fixed frame and a power equipment body, and the power equipment body is arranged on the ground; the sliding rail is fixedly mounted on the inner wall of the fixing frame; the driving sliding block is installed on the inner wall of the sliding rail in a sliding mode, and the driving sliding block is used for sliding up and down on the inner wall of the sliding rail; an L-shaped plate is fixedly installed on the surface of the driving sliding block, a protection cover is fixedly installed at the end, away from the driving sliding block, of the L-shaped plate, a sliding frame is slidably installed on the inner wall of the protection cover, the two sides of the power equipment body are clamped through a push plate, and it is ensured that the internal power equipment body cannot incline in the protection process of the protection cover; and meanwhile, clamping can prevent the power equipment body from displacing when the ground vibrates to influence the normal operation of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of protection, and specifically to a protection device for power equipment in a combined cycle power plant with a gas turbine. Background Art

[0002] A combined cycle power plant with a gas turbine is a power plant that improves power generation efficiency by combining two power generation methods of a gas turbine and a steam turbine.

[0003] The patent with the patent announcement number CN217656284U relates to a protection device for power equipment in a power plant, which solves the problem that the current protection device cannot be moved, resulting in the inability to move the power equipment. It includes a base, and universal wheels are fixedly installed at positions near the four corners of the bottom of the base. There is a through hole on the top of the base, and a bottom plate is movably installed inside the through hole. A power equipment protection box is fixedly installed on the top of the bottom plate. Support feet are fixedly installed at positions near the four corners of the bottom of the bottom plate, and a limiting plate is installed on the top of the base. In this patent, through the cooperation between the motor, the rotating shaft, the external thread, and the screw sleeve, the two connecting rods can be made to approach each other, and through the cooperation between the rotating rod, the sliding plate, and the connecting block, the power equipment protection box can be made to move upward, and then the support feet can be made to move upward and separate from the ground, so as to facilitate the movement of the power equipment protection box through the universal wheels.

[0004] In the above patent, through the cooperation between the rotating rod, the sliding plate, and the connecting block, the power equipment protection box can be made to move upward, and then the support feet can be made to move upward and separate from the ground, so as to facilitate the movement of the power equipment protection box through the universal wheels. However, during the protection process, the chassis may be displaced or shaken due to collision, which may cause damage to the internal electronic components and affect the normal operation of the equipment. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a protection device for power equipment in a combined cycle power plant with a gas turbine, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A power equipment protection device for a gas turbine combined cycle power plant, comprising: a fixed frame, a power equipment body, and the power equipment body is arranged on the ground; a slide rail, the slide rail is fixedly installed on the inner wall of the fixed frame; a driving slider, the driving slider is slidably installed on the inner wall of the slide rail, and the driving slider is used to slide up and down on the inner wall of the slide rail; an L-shaped plate is fixedly installed on the surface of the driving slider, and a protection cover is fixedly installed at one end of the L-shaped plate away from the driving slider. A sliding frame is slidably installed on the inner wall of the protection cover, a chute is opened on the inner wall of the protection cover, a push plate is slidably installed on the inner wall of the chute, a rotating plate is rotatably installed on the inner wall of the sliding frame, and one end of the rotating plate away from the sliding frame is rotatably installed on the inner wall of the push plate. By starting the driving slider to move downward along the slide rail, the L-shaped plate is driven to move downward, and the downward movement of the L-shaped plate will drive the protection cover to move downward, and the downward movement of the protection cover will cover the power equipment body.

[0007] According to the above technical solution, a first spring is arranged between the protection cover and the sliding frame. When the protection cover is reset, the elastic force of the first spring itself will drive the sliding frame to reset. A second spring is arranged between the chute and the push plate. When the sliding frame is reset, the push plate will lose the extrusion of the rotating plate and will reset under the elastic force of the second spring. A rubber layer is arranged on the surface of the push plate.

[0008] According to the above technical solution, a limiting device for limiting the power equipment body and an auxiliary supporting device for auxiliary support are arranged on the protection cover. The limiting device includes an elastic telescopic rod, a square frame, and a heat dissipation plate. By driving the protection cover to move downward, the elastic telescopic rod is driven to move downward, and the downward movement of the elastic telescopic rod will drive the square frame to move downward, and the downward movement of the square frame will cover the power equipment body. The elastic telescopic rod is fixedly installed at the top of the inner wall of the protection cover, the square frame is fixedly installed at the free end of the elastic telescopic rod, the heat dissipation plate is slidably installed on the inner wall of the protection cover, and heat dissipation openings are opened on the surface of the heat dissipation plate.

[0009] According to the above technical solution, a rotating rod is rotatably installed on the surface of the heat dissipation plate, a heat dissipation groove is opened on the surface of the protection cover, a fixing plate is slidably installed on the inner wall of the heat dissipation groove, a dust-proof plate is fixedly installed on the surface of the fixing plate, and one end of the rotating rod away from the heat dissipation plate is rotatably installed on the surface of the fixing plate. The reset of the heat dissipation plate will drive the reset of the rotating rod, and the reset of the rotating rod will push the dust-proof plate to move away from the heat dissipation plate.

[0010] According to the above technical solution, a third spring is arranged between the heat dissipation plate and the protection cover. When the protection cover is reset, the third spring will drive the heat dissipation plate to reset. A fourth spring is arranged between the heat dissipation groove and the fixing plate. When the heat dissipation plate is reset, the elastic force of the fourth spring itself will drive the fixing plate to reset.

[0011] According to the above technical solution, the auxiliary support device includes a long rod, a sliding plate, a sealing plate, a short rod, a connecting plate and a rotating support frame. When the heat dissipation plate moves upward, it will drive the long rod to move upward. When the long rod moves upward, it will drive the sliding plate to move upward. When the sliding plate moves upward, it will drive the short rod to move upward. When the short rod moves upward, it will push one end of the rotating support frame to rotate upward. When one end of the rotating support frame rotates upward, it will drive the other end of the rotating support frame to rotate downward. The long rod is fixedly installed at the bottom of the heat dissipation plate. The sliding plate is fixedly installed at the bottom of the long rod. The sealing plate is fixedly installed on the surface of the sliding plate. The connecting plate is fixedly installed on the outer wall of the protective cover. The rotating support frame is rotatably installed on the surface of the connecting plate.

[0012] According to the above technical solution, a fixed seat is fixedly installed at the bottom of the rotating support frame. A hinged rod is rotatably installed inside the fixed seat. A sliding seat is slidably installed on the outer wall of the protective cover. An inclined sealing plate is slidably installed on the outer wall of the protective cover. When the sliding seat moves downward, it will drive the inclined sealing plate to move downward, and the bottom of the protective cover is sealed by the downward movement of the inclined sealing plate.

[0013] According to the above technical solution, a first torsion spring is arranged between the rotating support frame and the connecting plate. When the sliding plate resets, the elastic force of the first torsion spring itself drives the rotating support frame to reset. A fifth spring is arranged between the protective cover and the sliding seat. When the rotating support frame resets, the sliding seat will lose the extrusion of the hinged rod and reset under the elastic force of the fifth spring. A sixth spring is arranged between the protective cover and the inclined sealing plate. When the sliding seat and the inclined sealing plate are separated, the sixth spring will drive the inclined sealing plate to reset.

[0014] The present invention provides a power equipment protection device for a combined cycle power plant of a gas turbine. It has the following beneficial effects: (1) In this invention, the power equipment body is comprehensively protected by the protective cover. The protective cover can help maintain the stable operating conditions of the equipment. Especially in high-temperature equipment such as gas turbines, the protective cover helps to control the thermal environment of the equipment, reduce the impact of temperature fluctuations on the equipment, and thus maintain the operating efficiency of the equipment. The power equipment body is clamped on both sides by the push plate to ensure that the power equipment body inside does not tilt during the protection process by the protective cover. At the same time, clamping can prevent the power equipment body from generating displacement when the ground vibrates, affecting the normal operation of the equipment.

[0015] (2) In this invention, it is to prevent the main body of the power equipment from tilting or being affected by vibrations, etc., which may cause damage to the internal electronic components. At the same time, after the square frame contacts the main body of the power equipment, the free end of the elastic telescopic rod will contract under the reverse force. The contraction of the free end of the elastic telescopic rod will drive the square frame to move upward. The upward movement of the square frame will drive the heat dissipation plate to move upward. When the heat dissipation plate moves upward, the heat dissipation openings will coincide with the heat dissipation grooves, enabling the heat generated by the main body of the power equipment to be dissipated, improving the heat dissipation effect. The dust-proof plate is used to push away the dust accumulated inside the heat dissipation grooves, preventing excessive dust accumulation from blocking the heat dissipation grooves and affecting the heat dissipation effect.

[0016] (3) In this invention, the rotating support frame contacts the ground for support to prevent the overall shaking of the protective cover, which may lead to instability during the protection process and pose potential hazards. When the rotating support frame rotates downward, it drives the fixed seat to rotate downward. The downward rotation of the fixed seat will push the articulated rod to rotate downward. The downward rotation of the articulated rod will push the sliding seat to move downward. The downward movement of the sliding seat will drive the inclined sealing plate to move downward. By the downward movement of the inclined sealing plate, the bottom of the protective cover is sealed to prevent rainwater from seeping into the interior through the bottom of the protective cover during rainy days, causing corrosion of the electronic components inside the main body of the power equipment and reducing the service life of the main body of the power equipment. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the overall sectional structure of the present invention; Figure 3 is a schematic diagram of the sectional structure of the protective cover of the present invention; Figure 4 is a schematic diagram of the structure of the protective cover and the dust-proof plate of the present invention; Figure 5 is the present invention Figure 4 is an enlarged schematic diagram of the structure of part A in the present invention; Figure 6 is the present invention Figure 4 is an enlarged schematic diagram of the structure of part B in the present invention; Figure 7 is a schematic diagram of the structure of the auxiliary support device of the present invention.

[0018] In the figure: 1, fixed frame; 2, main body of power equipment; 3, slide rail; 4, driving slider; 5, L-shaped plate; 6, protective cover; 7, sliding frame; 8, rotating plate; 9, push plate; 91, chute; 101, elastic telescopic rod; 102, square frame; 103, heat dissipation plate; 104, rotating rod; 105, heat dissipation groove; 106, fixed plate; 107, dust-proof plate; 111, long rod; 112, sliding plate; 113, sealing plate; 114, short rod; 115, connecting plate; 116, rotating support frame; 117, fixed seat; 118, articulated rod; 119, sliding seat; 1110, inclined sealing plate. Detailed implementation mode

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4 , an embodiment of the present invention is: a power equipment protection device for a combined cycle power plant of a gas turbine, including: a fixed frame 1, a power equipment body 2, and the power equipment body 2 is arranged on the ground; a slide rail 3, the slide rail 3 is fixedly installed on the inner wall of the fixed frame 1; a driving slider 4, the driving slider 4 is slidably installed on the inner wall of the slide rail 3, and the driving slider 4 is used to slide up and down on the inner wall of the slide rail 3; an L-shaped plate 5 is fixedly installed on the surface of the driving slider 4, and a protection cover 6 is fixedly installed at one end of the L-shaped plate 5 away from the driving slider 4. A sliding frame 7 is slidably installed on the inner wall of the protection cover 6. A chute 91 is opened on the inner wall of the protection cover 6, and a push plate 9 is slidably installed on the inner wall of the chute 91. A rotating plate 8 is rotatably installed on the inner wall of the sliding frame 7, and one end of the rotating plate 8 away from the sliding frame 7 is rotatably installed on the inner wall of the push plate 9. The power equipment body 2 is protected in all directions by the protection cover 6. The protection cover 6 can help maintain the stable operating conditions of the equipment. Especially in high-temperature equipment such as gas turbines, the protection cover 6 helps to control the thermal environment of the equipment, reduce the impact of temperature fluctuations on the equipment, and thus maintain the operating efficiency of the equipment.

[0021] A first spring is arranged between the protection cover 6 and the sliding frame 7. When the protection cover 6 is reset, the elastic force of the first spring itself will drive the sliding frame 7 to reset. A second spring is arranged between the chute 91 and the push plate 9. When the sliding frame 7 is reset, the push plate 9 will lose the extrusion of the rotating plate 8 and reset under the elastic force of the second spring. A rubber layer is arranged on the surface of the push plate 9.

[0022] During the operation of this embodiment: By starting the drive, the slider 4 moves downward along the slide rail 3, driving the L-shaped plate 5 to move downward. The downward movement of the L-shaped plate 5 will drive the protective cover 6 to move downward. The downward movement of the protective cover 6 will cover the power equipment body 2. The protective cover 6 provides all-round protection for the power equipment body 2. The protective cover 6 can help maintain the stable operating conditions of the equipment. Especially in high-temperature equipment such as gas turbines, the protective cover 6 helps to control the thermal environment of the equipment and reduce the impact of temperature fluctuations on the equipment, thereby maintaining the operating efficiency of the equipment. At the same time, the downward movement of the protective cover 6 will drive the sliding frame 7 to move downward. During the downward movement of the sliding frame 7, it will contact the ground. The reverse thrust from the ground will cause the sliding frame 7 to move upward. The upward movement of the sliding frame 7 will drive the rotating plate 8 to move upward. The upward movement of the rotating plate 8 will push the push plate 9 to move towards the power equipment body 2. The two sides of the power equipment body 2 are clamped by the push plate 9 to ensure that the power equipment body 2 inside will not tilt during the protection of the protective cover 6. At the same time, clamping can prevent the power equipment body 2 from being displaced when the ground vibrates, affecting the normal operation of the equipment.

[0023] Please refer to Figures 1-7 , on the basis of the above embodiment, in another embodiment of the present invention, a limiting device for limiting the power equipment body 2 and an auxiliary support device for auxiliary support are provided on the protective cover 6. The limiting device includes an elastic telescopic rod 101, a square frame 102, and a heat dissipation plate 103. The elastic telescopic rod 101 is fixedly installed at the top of the inner wall of the protective cover 6. The square frame 102 is fixedly installed at the free end of the elastic telescopic rod 101. The heat dissipation plate 103 is slidably installed on the inner wall of the protective cover 6. Heat dissipation openings are provided on the surface of the heat dissipation plate 103. The power equipment body 2 is clamped by the square frame 102 to prevent the power equipment body 2 from tilting or being affected by vibration, etc., resulting in damage to internal electronic components.

[0024] A rotating rod 104 is rotatably installed on the surface of the heat dissipation plate 103. A heat dissipation groove 105 is provided on the surface of the protective cover 6. A fixing plate 106 is slidably installed on the inner wall of the heat dissipation groove 105. A dust-proof plate 107 is fixedly installed on the surface of the fixing plate 106. The end of the rotating rod 104 away from the heat dissipation plate 103 is rotatably installed on the surface of the fixing plate 106. The dust accumulated in the heat dissipation groove 105 is pushed away by the dust-proof plate 107 to prevent excessive dust accumulation, resulting in blockage of the heat dissipation groove 105 and affecting the heat dissipation effect.

[0025] A third spring is provided between the heat dissipation plate 103 and the protective cover 6. When the protective cover 6 is reset, the third spring will drive the heat dissipation plate 103 to reset. A fourth spring is provided between the heat dissipation groove 105 and the fixing plate 106. When the heat dissipation plate 103 is reset, the elastic force of the fourth spring itself will drive the fixing plate 106 to reset.

[0026] The auxiliary support device includes a long rod 111, a sliding plate 112, a sealing plate 113, a short rod 114, a connecting plate 115 and a rotating support frame 116. The long rod 111 is fixedly installed at the bottom of the heat dissipation plate 103, the sliding plate 112 is fixedly installed at the bottom of the long rod 111, the sealing plate 113 is fixedly installed on the surface of the sliding plate 112, the connecting plate 115 is fixedly installed on the outer wall of the protective cover 6, and the rotating support frame 116 is rotatably installed on the surface of the connecting plate 115. The rotating support frame 116 contacts the ground for support to prevent the overall shaking of the protective cover 6, resulting in instability during the protection process and potential hazards.

[0027] A fixed seat 117 is fixedly installed at the bottom of the rotating support frame 116. An articulated rod 118 is rotatably installed inside the fixed seat 117. A sliding seat 119 is slidably installed on the outer wall of the protective cover 6. An inclined sealing plate 1110 is slidably installed on the outer wall of the protective cover 6 to prevent rainwater from penetrating into the interior through the bottom of the protective cover 6, causing the electronic components inside the power equipment body 2 to be corroded and reducing the service life of the power equipment body 2.

[0028] A first torsion spring is provided between the rotating support frame 116 and the connecting plate 115. When the sliding plate 112 is reset, the elastic force of the first torsion spring itself drives the rotating support frame 116 to reset. A fifth spring is provided between the protective cover 6 and the sliding seat 119. When the rotating support frame 116 is reset, the sliding seat 119 will be reset under the elastic force of the fifth spring after losing the extrusion of the articulated rod 118. A sixth spring is provided between the protective cover 6 and the inclined sealing plate 1110. When the sliding seat 119 is separated from the inclined sealing plate 1110, the sixth spring will drive the inclined sealing plate 1110 to reset.

[0029] During the operation of this embodiment: The downward movement of the protective cover 6 drives the downward movement of the elastic telescopic rod 101. The downward movement of the elastic telescopic rod 101 drives the downward movement of the square frame 102. The downward movement of the square frame 102 covers the power equipment body 2. At the same time, the square frame 102 clamps the power equipment body 2 to prevent the power equipment body 2 from tilting or being affected by vibration, etc., resulting in damage to the internal electronic components. At the same time, after the square frame 102 contacts the power equipment body 2, the reverse force causes the free end of the elastic telescopic rod 101 to contract. The contraction of the free end of the elastic telescopic rod 101 drives the upward movement of the square frame 102. The upward movement of the square frame 102 drives the upward movement of the heat dissipation plate 103. When the heat dissipation plate 103 moves upward, the heat dissipation opening coincides with the heat dissipation groove 105, allowing the heat generated by the power equipment body 2 to dissipate, improving the heat dissipation effect. At the same time, the upward movement of the heat dissipation plate 103 drives the upward movement of the rotating rod 104. The upward movement of the rotating rod 104 pulls the fixing plate 106 to move towards the heat dissipation plate 103. The movement of the fixing plate 106 towards the heat dissipation plate 103 drives the dust-proof plate 107 to move towards the heat dissipation plate 103. When equipment maintenance is required, the driving slider 4 drives the L-shaped plate 5, the protective cover 6, the elastic telescopic rod 101, and the square frame 102 to move upward. The square frame 102 without extrusion moves downward under the elastic force of the elastic telescopic rod 101 itself. At the same time, the reset of the heat dissipation plate 103 drives the reset of the rotating rod 104. The reset of the rotating rod 104 pushes the dust-proof plate 107 to move away from the heat dissipation plate 103. The dust accumulated inside the heat dissipation groove 105 is pushed away by the dust-proof plate 107 to prevent excessive dust accumulation from blocking the heat dissipation groove 105 and affecting the heat dissipation effect.

[0030] The upward movement of the heat dissipation plate 103 drives the upward movement of the long rod 111. The upward movement of the long rod 111 drives the upward movement of the sliding plate 112. The upward movement of the sliding plate 112 drives the upward movement of the short rod 114. The upward movement of the short rod 114 pushes one end of the rotating support frame 116 to rotate upward. The upward rotation of one end of the rotating support frame 116 drives the other end of the rotating support frame 116 to rotate downward. The rotating support frame 116 contacts the ground for support to prevent the overall shaking of the protective cover 6, resulting in instability during the protection process and potential hazards. The downward rotation of the rotating support frame 116 drives the downward rotation of the fixed seat 117. The downward rotation of the fixed seat 117 pushes the articulated rod 118 to rotate downward. The downward rotation of the articulated rod 118 pushes the sliding seat 119 to move downward. The downward movement of the sliding seat 119 drives the downward movement of the inclined sealing plate 1110. The downward movement of the inclined sealing plate 1110 seals the bottom of the protective cover 6 to prevent rainwater from penetrating into the interior from the bottom of the protective cover 6, causing corrosion of the electronic components inside the power equipment body 2 and reducing the service life of the power equipment body 2.

[0031] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protection device for power equipment in a gas turbine combined cycle power plant, which is used to protect power equipment, including: Fixing bracket (1), characterized in that: Power equipment body (2), and the power equipment body (2) is arranged on the ground; Slide rail (3), and the slide rail (3) is fixedly installed on the inner wall of the fixing bracket (1); Driving slider (4), and the driving slider (4) is slidably installed on the inner wall of the slide rail (3), and the driving slider (4) is used for sliding up and down on the inner wall of the slide rail (3); An L-shaped plate (5) is fixedly installed on the surface of the driving slider (4), a protective cover (6) is fixedly installed at one end of the L-shaped plate (5) away from the driving slider (4), a sliding frame (7) is slidably installed on the inner wall of the protective cover (6), a chute (91) is opened on the inner wall of the protective cover (6), a push plate (9) is slidably installed on the inner wall of the chute (91), a rotating plate (8) is rotatably installed on the inner wall of the sliding frame (7), and one end of the rotating plate (8) away from the sliding frame (7) is rotatably installed on the inner wall of the push plate (9). A limiting device for limiting the power equipment body (2) and an auxiliary supporting device for auxiliary support are arranged on the protective cover (6).

2. The power equipment protection device for a gas turbine combined cycle power plant according to claim 1, wherein: A first spring is arranged between the protective cover (6) and the sliding frame (7), a second spring is arranged between the chute (91) and the push plate (9), and a rubber layer is arranged on the surface of the push plate (9).

3. The power equipment protection device for a gas turbine combined cycle power plant according to claim 2, characterized in that: The limiting device includes an elastic telescopic rod (101), a square frame (102) and a heat dissipation plate (103). The elastic telescopic rod (101) is fixedly installed on the top of the inner wall of the protective cover (6), the square frame (102) is fixedly installed at the free end of the elastic telescopic rod (101), the heat dissipation plate (103) is slidably installed on the inner wall of the protective cover (6), and heat dissipation openings are opened on the surface of the heat dissipation plate (103).

4. A power equipment protection device for a gas turbine combined cycle power plant according to claim 3, characterized in that: A rotating rod (104) is rotatably installed on the surface of the heat dissipation plate (103), a heat dissipation groove (105) is opened on the surface of the protective cover (6), a fixing plate (106) is slidably installed on the inner wall of the heat dissipation groove (105), a dust-proof plate (107) is fixedly installed on the surface of the fixing plate (106), and one end of the rotating rod (104) away from the heat dissipation plate (103) is rotatably installed on the surface of the fixing plate (106).

5. The power equipment protection device of a gas turbine combined cycle power plant according to claim 4, characterized in that: A third spring is arranged between the heat dissipation plate (103) and the protective cover (6), and a fourth spring is arranged between the heat dissipation groove (105) and the fixing plate (106).

6. The power equipment protection device of a gas turbine combined cycle power plant according to claim 5, characterized in that: The auxiliary supporting device includes a long rod (111), a sliding plate (112), a sealing plate (113), a short rod (114), a connecting plate (115) and a rotating support frame (116). The long rod (111) is fixedly installed at the bottom of the heat dissipation plate (103), the sliding plate (112) is fixedly installed at the bottom of the long rod (111), the sealing plate (113) is fixedly installed on the surface of the sliding plate (112), the connecting plate (115) is fixedly installed on the outer wall of the protective cover (6), and the rotating support frame (116) is rotatably installed on the surface of the connecting plate (115).

7. A power equipment protection device for a gas turbine combined cycle power plant according to claim 6, characterized in that: A fixed seat (117) is fixedly installed at the bottom of the rotating support frame (116). A hinged rod (118) is rotatably installed on the inner wall of the fixed seat (117). A sliding seat (119) is slidably installed on the outer wall of the protective cover (6). An inclined sealing plate (1110) is slidably installed on the outer wall of the protective cover (6).

8. A power equipment protection device for a gas turbine combined cycle power plant according to claim 7, characterized in that: A first torsion spring is arranged between the rotating support frame (116) and the connecting plate (115). A fifth spring is arranged between the protective cover (6) and the sliding seat (119). A sixth spring is arranged between the protective cover (6) and the inclined sealing plate (1110).

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