Protective device for steam turbine

Abstract

The utility model discloses a protective device for a steam turbine, which relates to the technical field of steam turbine maintenance and repair, and comprises a pedal, one side of the pedal is connected with a caulking edge strip, and the outer side of the pedal is provided with a hinge structure; according to the protection device for the steam turbine, the mounting assembly is arranged between the profile steel baffle and the pedal, when the profile steel baffle is mounted, a fixing block moves along the interior of a fixing groove, so that a positioning hole corresponds to a positioning pin, and under the elastic potential energy of a supporting spring, a moving block drives the positioning pin to be inserted into the positioning hole; when the profile steel baffle needs to be disassembled, the movable block and the positioning pin are pulled outwards along the movable groove through the handheld groove, so that the positioning pin is separated from the interior of the positioning hole, the fixed block can be pulled outwards, the profile steel baffle can be disassembled, the structure is simple, operation is convenient, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of steam turbine maintenance and overhaul, in particular to a protective device for a steam turbine. Background Technique

[0002] A steam turbine, also known as a steam turbine engine, is a rotary steam power device. High-temperature and high-pressure steam passes through a fixed nozzle to become an accelerated air flow and then jets onto the blades, causing the rotor equipped with blade rows to rotate and do work externally at the same time. A steam turbine is the main equipment of a modern thermal power plant and is also used in the metallurgical industry, chemical industry, and ship power plants. During its long-term use, the cylinder block needs to be maintained and overhauled, and thus a protective device is used;

[0003] At present, a publicly disclosed patent, a safety protection device for steam turbine maintenance (publication number: CN217481341U), can avoid tools and dust and sundries on shoes from falling into the cylinder block groove or on the bolt fixing groove of the lower half cylinder block during use. However, during the assembly process of the device, it is necessary to manually install the profiled steel baffle on the pedal. During this process, bolts need to be continuously rotated for installation, which is time-consuming and laborious, and the profiled steel baffle cannot be quickly installed, thus affecting the construction efficiency of the device and further affecting the maintenance efficiency. For this reason, the utility model proposes a protective device for a steam turbine. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a protective device for a steam turbine, which solves the problems raised in the above background technique.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A protective device for a steam turbine includes a pedal, one side of the pedal is connected with a caulking edge strip, a hinge structure is arranged outside the pedal, a profiled steel baffle is arranged at the upper end of the pedal, an installation component is arranged at the connection between the pedal and the profiled steel baffle, a strong magnetic block is arranged at the bottom of the pedal, a protective vertical rod is arranged at the upper end of the profiled steel baffle, and a protective net is connected to one side of the protective vertical rod;

[0006] The installation component includes a fixed block, a positioning hole is opened in the middle of the fixed block, a fixed slot and a moving slot are opened at the upper end of the pedal, a moving block and a support spring are arranged inside the moving slot, a positioning pin is arranged on one side of the moving block, and a hand-held slot is opened at the upper end of the moving block.

[0007] As a further technical solution of the utility model, the number of the pedals is several groups and is distributed in an array, the caulking edge strip is fixedly connected with the pedal, and the number of the caulking edge strips is equal to the number of the pedals.

[0008] As a further technical solution of the present utility model, every two groups of the pedals are connected through a hinge structure. The number of the hinge structures is several groups and is distributed in an array, and the number of the profiled steel baffles is equal to the number of the pedals.

[0009] As a further technical solution of the present utility model, the profiled steel baffle is in a "U" shape structure. The profiled steel baffle and the pedal are connected through an installation component. The pedal and the strong magnetic block are fixedly connected, and the number of the strong magnetic blocks is equal to the number of the pedals.

[0010] As a further technical solution of the present utility model, the fixed block and the profiled steel baffle are fixedly connected. The positioning hole penetrates through the middle of the fixed block. The positioning hole is in a rectangular structure. The number of the fixed blocks and the positioning holes is equal to the number of the profiled steel baffles. The fixed block and the fixed groove are adapted to each other.

[0011] As a further technical solution of the present utility model, the moving groove is communicated with the fixed groove. The moving block and the positioning pin are fixedly connected. The moving block and the moving groove are adapted to each other. The positioning pin and the positioning hole are adapted to each other. The thickness of the hand-held groove is smaller than the thickness of the moving block. The two ends of the support spring are respectively connected with the moving block and the moving groove.

[0012] The present utility model provides a protection device for a steam turbine. Compared with the prior art, the following beneficial effects are achieved:

[0013] In this design of a protection device for a steam turbine, by arranging an installation component between the profiled steel baffle and the pedal, when the profiled steel baffle is installed, the fixed block moves along the inside of the fixed groove, so that the positioning hole corresponds to the positioning pin. Under the elastic potential energy of the support spring, the moving block drives the positioning pin to insert into the positioning hole, and the profiled steel baffle is fixed. When the profiled steel baffle needs to be disassembled, only by pulling the moving block and the positioning pin along the moving groove through the hand-held groove, so that the positioning pin disengages from the inside of the positioning hole, the fixed block can be pulled out, and the profiled steel baffle can be disassembled. The structure is simple, the operation is convenient, and it saves time and effort. Description of the Drawings

[0014] Figure 1 is a structural schematic diagram of a protection device for a steam turbine;

[0015] Figure 2 is a partial side sectional view of a protection device for a steam turbine;

[0016] Figure 3 is a partial disassembled view of a protection device for a steam turbine;

[0017] Figure 4 is a protection device for a steam turbine Figure 3Enlarged view of A.

[0018] In the figure: 1, pedal; 2, caulking strip; 3, hinge structure; 4, profiled steel baffle; 5, installation component; 51, fixing block; 52, positioning hole; 53, fixing groove; 54, moving groove; 55, moving block; 56, positioning pin; 57, hand-held groove; 58, support spring; 6, strong magnet block; 7, protective vertical rod; 8, protective net. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4 , the present invention provides a technical solution for a protection device for a steam turbine: a protection device for a steam turbine, including a pedal 1, a caulking strip 2 is connected to one side of the pedal 1, a hinge structure 3 is arranged outside the pedal 1, a profiled steel baffle 4 is arranged at the upper end of the pedal 1, an installation component 5 is arranged at the connection between the pedal 1 and the profiled steel baffle 4, a strong magnet block 6 is arranged at the bottom of the pedal 1, a protective vertical rod 7 is arranged at the upper end of the profiled steel baffle 4, and a protective net 8 is connected to one side of the protective vertical rod 7;

[0021] Among them, the installation component 5 includes a fixing block 51, a positioning hole 52 is opened in the middle of the fixing block 51, a fixing groove 53 and a moving groove 54 are opened at the upper end of the pedal 1, a moving block 55 and a support spring 58 are arranged inside the moving groove 54, a positioning pin 56 is arranged on one side of the moving block 55, and a hand-held groove 57 is opened at the upper end of the moving block 55.

[0022] As Figures 1-3 shown, the number of pedals 1 is several groups and is arranged in an array, the caulking strip 2 is fixedly connected to the pedal 1, the number of caulking strips 2 is equal to the number of pedals 1, each two groups of pedals 1 are connected by a hinge structure 3, the number of hinge structures 3 is several groups and is arranged in an array, and the number of profiled steel baffles 4 is equal to the number of pedals 1, which is beneficial to the unfolded use of the pedal 1.

[0023] As Figures 1-3As shown in the figure, the profiled steel baffle 4 is in a "U" shape. The profiled steel baffle 4 and the pedal 1 are connected through the installation component 5. The pedal 1 and the strong magnet block 6 are fixedly connected. The number of the strong magnet blocks 6 is equal to the number of the pedals 1, which is beneficial for the pedal 1 to be unfolded into a whole horizontal protection plate and laid flat between the outer edge of the inner cylinder and the outer edge of the outer cylinder. At the same time, the strong magnet blocks 6 can be adsorbed to ensure that the protection device will not be displaced and enhance safety.

[0024] As Figures 1-4 shown in the figure, the fixed block 51 and the profiled steel baffle 4 are fixedly connected. The positioning hole 52 penetrates through the middle of the fixed block 51. The positioning hole 52 is in a rectangular structure. The number of the fixed blocks 51 and the positioning holes 52 is equal to the number of the profiled steel baffles 4. The fixed block 51 is adapted to the fixed groove 53. The moving groove 54 is communicated with the fixed groove 53. The moving block 55 and the positioning pin 56 are fixedly connected. The moving block 55 is adapted to the moving groove 54. The positioning pin 56 is adapted to the positioning hole 52. The thickness of the hand-held groove 57 is less than the thickness of the moving block 55. The two ends of the support spring 58 are respectively connected with the moving block 55 and the moving groove 54, which is beneficial for the rapid installation and disassembly of the profiled steel baffle 4.

[0025] The working principle of the utility model is as follows: during the use of the protection device, the pedals 1 are laid flat through the hinge structure 3 to form a whole, and then laid flat between the outer edge of the inner cylinder and the outer edge of the outer cylinder. At the same time, the strong magnet blocks 6 can be adsorbed to ensure that the protection device will not be displaced and enhance safety. Then, the profiled steel baffle 4 is installed on the upper end of the pedal 1 through the installation component 5. At the same time, the protection vertical rod 7 and the protection net 8 are optional. Through the setting of the profiled steel baffle 4, during the maintenance process, tools and dust and sundries on shoes during maintenance can be prevented from falling into the cylinder body groove or falling on the bolt fixing groove of the lower half cylinder body, playing a protective role.

[0026] It should be noted that through the setting of the installation component 5, when the profiled steel baffle 4 is installed, the fixed block 51 moves along the inside of the fixed groove 53, so that the fixed block 51 contacts the top of the positioning pin 56, drives the positioning pin 56 to move along the moving groove 54, further drives the moving block 55 to move, compresses the support spring 58 until the fixed block 51 is inserted into the inside of the fixed groove 53, makes the positioning hole 52 correspond to the positioning pin 56, and under the elastic potential energy of the support spring 58, makes the moving block 55 drive the positioning pin 56 to insert into the inside of the positioning hole 52, thereby limiting the fixed block 51 and further fixing the profiled steel baffle 4. The installation is convenient. When the profiled steel baffle 4 needs to be disassembled, only need to pull the moving block 55 and the positioning pin 56 along the moving groove 54 through the hand-held groove 57, so that the positioning pin 56 is separated from the inside of the positioning hole 52, and then the fixed block 51 can be pulled out, and the profiled steel baffle 4 can be disassembled. The structure is simple and the operation is convenient.

[0027] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements can be made without departing from the principle of the present utility model, and these improvements and refinements should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model are implemented according to the conventional means in this field without special instructions and limitations.

Claims

1. A protective device for a steam turbine, comprising a pedal (1), characterized in that: One side of the pedal (1) is connected with a caulking strip (2), a hinge structure (3) is arranged on the outer side of the pedal (1), a profiled steel baffle (4) is arranged at the upper end of the pedal (1), an installation component (5) is arranged at the connection part between the pedal (1) and the profiled steel baffle (4), a strong magnetic block (6) is arranged at the bottom of the pedal (1), a protective vertical rod (7) is arranged at the upper end of the profiled steel baffle (4), and a protective net (8) is connected to one side of the protective vertical rod (7); The installation component (5) includes a fixed block (51), a positioning hole (52) is opened in the middle of the fixed block (51), a fixed groove (53) and a moving groove (54) are opened at the upper end of the pedal (1), a moving block (55) and a support spring (58) are arranged inside the moving groove (54), a positioning pin (56) is arranged on one side of the moving block (55), and a hand-held groove (57) is opened at the upper end of the moving block (55).

2. A steam turbine protection device according to claim 1, characterized in that: The number of the pedals (1) is several groups and is distributed in an array, the caulking strip (2) and the pedal (1) are fixedly connected, and the number of the caulking strips (2) is equal to the number of the pedals (1).

3. A steam turbine protection device according to claim 1, characterized in that: Every two groups of the pedals (1) are connected through the hinge structure (3), the number of the hinge structures (3) is several groups and is distributed in an array, and the number of the profiled steel baffles (4) is equal to the number of the pedals (1).

4. A steam turbine protection device according to claim 1, characterized in that: The profiled steel baffle (4) is in a "U" shape structure, the profiled steel baffle (4) and the pedal (1) are connected through the installation component (5), the pedal (1) and the strong magnetic block (6) are fixedly connected, and the number of the strong magnetic blocks (6) is equal to the number of the pedals (1).

5. A steam turbine protection device according to claim 1, characterized in that: The fixed block (51) and the profiled steel baffle (4) are fixedly connected, the positioning hole (52) penetrates through the middle of the fixed block (51), the positioning hole (52) is in a rectangular structure, the number of the fixed blocks (51) and the positioning holes (52) is equal to the number of the profiled steel baffles (4), and the fixed block (51) and the fixed groove (53) are adapted to each other.

6. A steam turbine protection device according to claim 1, characterized in that: The moving groove (54) is communicated with the fixed groove (53), the moving block (55) and the positioning pin (56) are fixedly connected, the moving block (55) and the moving groove (54) are adapted to each other, the positioning pin (56) and the positioning hole (52) are adapted to each other, the thickness of the hand-held groove (57) is smaller than the thickness of the moving block (55), and the two ends of the support spring (58) are respectively connected with the moving block (55) and the moving groove (54).

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