High-temperature-resistant heat preservation device for steam turbine of thermal power plant

Abstract

The high-temperature-resistant heat preservation device for the steam turbine of the thermal power plant comprises a mounting frame, connecting openings are formed in the two sides of the mounting frame respectively, adjusting mechanisms are symmetrically arranged on the two sides of an inner cavity of the mounting frame, driving mechanisms are arranged on the rear surfaces of the adjusting mechanisms, and a starting mechanism is arranged between the adjusting mechanisms. The starting mechanisms are symmetrically arranged, a corrugated cover is arranged between the starting mechanisms and one side of an inner cavity of the mounting frame, the starting mechanisms are connected through a positioning mechanism, the adjusting mechanism, the driving mechanism, the starting mechanisms, the corrugated cover, the positioning mechanism and other mechanisms are combined to form a new structure, and starting is achieved through components in the driving end. The multiple adjusting ends drive the multiple starting ends to rotate and adjust parts in the adjusting ends, the multiple adjusting ends drive the multiple starting ends to adjust the corrugated cover connected with one sides of the multiple starting ends, the multiple starting ends are in butt joint and fixed through the positioning ends, and the driven corrugated cover plays a role in protecting the steam turbine.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature resistant heat preservation auxiliary equipment for steam turbines, in particular to a high-temperature resistant heat preservation device for steam turbines in thermal power plants. Background Art

[0002] A steam turbine, also known as a steam turbine engine, is a rotary steam-powered device. High-temperature, high-pressure steam passes through a fixed nozzle, accelerating into an airflow and then spraying onto blades. This causes the rotor, equipped with rows of blades, to rotate, simultaneously producing work. Steam turbines are a staple of modern thermal power plants and are also used in the metallurgical and chemical industries, as well as in ship propulsion systems.

[0003] However, the insulation measure adopted by the existing steam turbine is to achieve insulation operation by wrapping a layer of cloth cover structure on the outside of the unit. This insulation structure requires time to wrap during installation, and the sealed wrapping structure is not conducive to subsequent unit maintenance.

[0004] In view of this, a high temperature resistant heat preservation device for a steam turbine in a thermal power plant is provided to overcome the above-mentioned defects. Utility Model Content

[0005] In view of the problems in the related art, the utility model proposes a high-temperature resistant heat preservation device for a steam turbine in a thermal power plant to overcome the above-mentioned technical problems existing in the existing related art.

[0006] To this end, the specific technical solutions adopted in this utility model are as follows:

[0007] A high-temperature resistant heat preservation device for a steam turbine in a thermal power plant comprises a mounting frame, with connecting ports respectively provided on both sides of the mounting frame, adjustment mechanisms symmetrically provided on both sides of an inner cavity of the mounting frame, a driving mechanism provided on the rear surface of the adjustment mechanism, and a starting mechanism provided between the adjustment mechanisms, which are symmetrically arranged, a corrugated cover provided between the starting mechanism and one side of the inner cavity of the mounting frame, and the starting mechanisms are connected by a positioning mechanism.

[0008] Preferably, the adjustment mechanism includes an adjustment groove, a bidirectional adjustment screw and an adjustment block. The adjustment groove is symmetrically dug on both sides of the inner cavity of the mounting frame. The front surface of the inner cavity of the adjustment groove is connected to a bidirectional adjustment screw. The outer wall of the bidirectional adjustment screw is connected to multiple adjustment blocks through threads and is symmetrically arranged.

[0009] Preferably, the driving mechanism includes a driving groove and a driving motor. The driving groove is dug on the rear surface of the adjustment groove and is located on both sides of the inner cavity of the mounting frame. A driving motor is provided on the bottom surface of the inner cavity of the driving groove, and the driving motor is connected to the rear surface of the bidirectional adjustment screw.

[0010] Preferably, the starting mechanism includes a starting transverse plate and a semicircular connecting plate, the starting transverse plate is arranged on one side of the adjustment block, the semicircular connecting plate is fixedly connected between the starting transverse plates, and the connection between the starting transverse plate and the adjustment block is also fixedly connected.

[0011] Preferably, the positioning mechanism includes a first rubber plate, a second rubber plate, a positioning rod and a positioning groove, the first rubber plate is attached to one side of the starting horizontal plate, the second rubber plate is attached to one side of the semicircular connecting plate, one side of the first rubber plate and the second rubber plate located above are both dug with a positioning groove, and the top of the first rubber plate and the second rubber plate located below are both provided with a positioning rod.

[0012] Preferably, the positioning rod and the inner wall size of the positioning groove match each other, and both the positioning rod and the positioning groove are rubber structures.

[0013] This utility model has the following beneficial effects:

[0014] Compared with the existing technology, the high-temperature resistant insulation device for the steam turbine of the thermal power plant forms a new structure by combining multiple mechanisms such as the adjustment mechanism, drive mechanism, starting mechanism, bellows and positioning mechanism. It is started by the components in the driving end and rotates and adjusts the components in the adjustment end. Multiple adjustment ends are adjusted with the bellows connected to one side of multiple starting ends. The multiple starting ends are docked and fixed through the positioning end. The driven bellows protect the steam turbine and are convenient for opening the bellows to perform operations such as maintenance on the steam turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic top view of the structure of a high-temperature resistant heat preservation device for a steam turbine in a thermal power plant according to an embodiment of the present utility model;

[0017] Figure 2 This is a top view of the expanded structure of a high-temperature resistant heat preservation device for a steam turbine in a thermal power plant according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of a portion of the mounting frame of a high-temperature resistant heat preservation device for a steam turbine in a thermal power plant according to an embodiment of the present utility model;

[0019] Figure 4The present invention is a schematic diagram of the disassembled structure of a starting mechanism of a high-temperature resistant heat preservation device for a steam turbine in a thermal power plant according to an embodiment of the present invention.

[0020] In the picture:

[0021] 1. Mounting frame; 2. Connecting port; 3. Adjusting mechanism; 4. Driving mechanism; 5. Starting mechanism; 6. Bellows; 7. Positioning mechanism; 8. Adjusting slot; 9. Bidirectional adjusting screw; 10. Adjusting block; 11. Driving slot; 12. Driving motor; 13. Starting cross plate; 14. Semicircular connecting plate; 15. First rubber plate; 16. Second rubber plate; 17. Positioning rod; 18. Positioning slot. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of this practical embodiment clearer, the technical solutions in the embodiment will be clearly and completely described below in conjunction with the drawings in the practical embodiment. The following embodiments are used to illustrate this practical embodiment but are not used to limit the scope of this practical embodiment.

[0023] In the description of this utility model, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as a limitation on this utility model.

[0024] In the description of this utility, it should be noted that, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility based on the specific circumstances.

[0025] Example

[0026] like Figure 1-4As shown, a high-temperature resistant insulation device for a steam turbine in a thermal power plant according to an embodiment of the present invention comprises a mounting frame 1, wherein connecting ports 2 are respectively provided on both sides of the mounting frame 1, and adjusting mechanisms 3 are symmetrically provided on both sides of the inner cavity of the mounting frame 1, and a driving mechanism 4 is provided on the rear surface of the adjusting mechanism 3, and a starting mechanism 5 is provided between the adjusting mechanisms 3 and is symmetrically provided, and a corrugated cover 6 is provided between the starting mechanism 5 and one side of the inner cavity of the mounting frame 1, and the starting mechanisms 5 are connected by a positioning mechanism 7; it is started by the components in the driving mechanism 4, and the components in the adjusting mechanism 3 are rotated and adjusted, and multiple adjusting mechanisms 3 are adjusted with multiple starting mechanisms 5 and the corrugated covers 3 connected to one side thereof, and the multiple starting mechanisms 5 are docked and fixed by the positioning mechanism 7, and the driven corrugated covers 3 play a role in protecting the steam turbine, and at the same time it is convenient to open the corrugated cover 3 to perform operations such as maintenance on the steam turbine.

[0027] The adjustment mechanism 3 includes an adjustment groove 8, a bidirectional adjustment screw 9 and an adjustment block 10. The adjustment groove 8 is symmetrically dug on both sides of the inner cavity of the mounting frame 1. The front surface of the inner cavity of the adjustment groove 8 is connected with a bidirectional adjustment screw 9. The outer wall of the bidirectional adjustment screw 9 is connected with multiple adjustment blocks 10 through threads and is symmetrically arranged; the drive motor 12 is started by an external switch, and the drive motor 12 drives the bidirectional adjustment screw 9 to rotate. The outer wall of the bidirectional adjustment screw 9 drives multiple adjustment blocks 10 to adjust in a similar direction through reverse threads, and the adjustment block 10 is adjusted with the starting horizontal plate 13 and the semicircular connecting plate 14 fixedly connected therebetween.

[0028] The driving mechanism 4 includes a driving slot 11 and a driving motor 12. The driving slot 11 is dug on the rear surface of the adjustment slot 8 and is located on both sides of the inner cavity of the mounting frame 1. The driving motor 12 is provided on the bottom surface of the inner cavity of the driving slot 11, and the driving motor 12 is connected to the rear surface of the bidirectional adjustment screw 9.

[0029] The starting mechanism 5 includes a starting transverse plate 13 and a semicircular connecting plate 14. The starting transverse plate 13 is arranged on one side of the adjusting block 10. The semicircular connecting plate 14 is fixedly connected between the starting transverse plates 13, and the connection between the starting transverse plate 13 and the adjusting block 10 is also fixedly connected; the adjusting block 10 is adjusted in a similar direction, and the adjusting block 10 is adjusted with the starting transverse plate 13 and the semicircular connecting plate 14 fixedly connected therebetween, and the corrugated cover 6 fixedly connected to one side of the starting transverse plate 13 is driven and stretched, and the corrugated cover 6 plays a protective role on the steam turbine.

[0030] The positioning mechanism 7 includes a first rubber plate 15, a second rubber plate 16, a positioning rod 17 and a positioning groove 18. The first rubber plate 15 is attached to one side of the starting horizontal plate 13, and the second rubber plate 16 is attached to one side of the semicircular connecting plate 14. A positioning groove 18 is dug on one side of the first rubber plate 15 and the second rubber plate 16 located at the top. A positioning rod 17 is provided on the top of the first rubber plate 15 and the second rubber plate 16 located at the bottom. The positioning rod 17 matches the inner wall size of the positioning groove 18, and both the positioning rod 17 and the positioning groove 18 are rubber structures. When the starting horizontal plate 13 is docked, the positioning rod 17 will be engaged with the positioning groove 18, so that the multiple starting horizontal plates 13 are fixed to the structure thereon, so that the stretched corrugated cover 6 is fixed, and the corrugated cover 6 plays a protective role for the steam turbine.

[0031] In summary, with the help of the above-mentioned technical solution of the utility model, when this device is in use, the drive motor 12 is started by an external switch, and the drive motor 12 rotates with the bidirectional adjustment screw 9. The outer wall of the bidirectional adjustment screw 9 drives multiple adjustment blocks 10 to adjust in a similar direction through the reverse thread. The adjustment block 10 adjusts with the starting cross plate 13 and the semicircular connecting plate 14 fixedly connected therebetween. The corrugated cover 6 fixedly connected to one side of the starting cross plate 13 is driven and stretched. When the starting cross plate 13 is docked, the positioning rod 17 will be engaged with the positioning groove 18, so that the multiple starting cross plates 13 are fixed to the structure thereon, so that the stretched corrugated cover 6 is fixed, and the corrugated cover 6 plays a protective role on the steam turbine.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high temperature resistant heat preservation device for a steam turbine in a thermal power plant, characterized in that: The invention comprises a mounting frame (1), wherein both sides of the mounting frame (1) are respectively provided with a connecting port (2), an adjusting mechanism (3) is symmetrically provided on both sides of the inner cavity of the mounting frame (1), a driving mechanism (4) is provided on the rear surface of the adjusting mechanism (3), and a starting mechanism (5) is provided between the adjusting mechanisms (3) and is symmetrically provided, a corrugated cover (6) is provided between the starting mechanism (5) and one side of the inner cavity of the mounting frame (1), and the starting mechanisms (5) are connected via a positioning mechanism (7).

2. A high temperature resistant heat preservation device for a thermal power plant steam turbine according to claim 1, characterized in that: The adjusting mechanism (3) comprises an adjusting groove (8), a bidirectional adjusting screw rod (9) and an adjusting block (10); the adjusting groove (8) is symmetrically excavated on both sides of the inner cavity of the mounting frame (1); the front surface of the inner cavity of the adjusting groove (8) is connected to the bidirectional adjusting screw rod (9); the outer wall of the bidirectional adjusting screw rod (9) is connected to a plurality of adjusting blocks (10) via threads and are symmetrically arranged.

3. The high temperature resistant heat preservation device for a thermal power plant steam turbine according to claim 2, characterized in that: The driving mechanism (4) comprises a driving groove (11) and a driving motor (12); the driving groove (11) is excavated on the rear surface of the adjusting groove (8) and is located on both sides of the inner cavity of the mounting frame (1); the driving motor (12) is provided on the bottom surface of the inner cavity of the driving groove (11), and the driving motor (12) is connected to the rear surface of the bidirectional adjusting screw rod (9).

4. The high temperature resistant heat preservation device for a thermal power plant steam turbine according to claim 3, characterized in that: The starting mechanism (5) comprises a starting transverse plate (13) and a semicircular connecting plate (14); the starting transverse plate (13) is arranged on one side of the adjusting block (10); the semicircular connecting plate (14) is fixedly connected between the starting transverse plates (13); and the connection between the starting transverse plate (13) and the adjusting block (10) is also fixedly connected.

5. The high temperature resistant heat preservation device for a thermal power plant steam turbine according to claim 4, characterized in that: The positioning mechanism (7) comprises a first rubber plate (15), a second rubber plate (16), a positioning rod (17) and a positioning groove (18); the first rubber plate (15) is attached to one side of the starting horizontal plate (13); the second rubber plate (16) is attached to one side of the semicircular connecting plate (14); a positioning groove (18) is dug on one side of the first rubber plate (15) and the second rubber plate (16) located above; and a positioning rod (17) is provided on the top of the first rubber plate (15) and the second rubber plate (16) located below.

6. The high temperature resistant heat preservation device for a thermal power plant steam turbine according to claim 5, characterized in that: The positioning rod (17) and the inner wall size of the positioning groove (18) match each other, and both the positioning rod (17) and the positioning groove (18) are rubber structures.

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