Cylinder body heat preservation mechanism of steam turbine

Abstract

The utility model discloses a cylinder body heat preservation mechanism of a steam turbine, which belongs to the technical field of steam turbines and comprises a top plate, four supporting columns are fixedly connected to the bottom surface of the top plate, supporting seats are fixedly connected to the bottom ends of the four supporting columns, mounting holes are formed in the supporting seats, and a control mechanism is arranged on the outer side of one supporting column. According to the utility model, the supporting seat, the supporting column and the top plate are placed on the side part of the steam turbine, and the two protective shells are arranged on the lower part of the I-shaped sliding seat on the top plate, so that the two protective shells are placed on the outer side of the steam turbine to preserve heat of the steam turbine; and the two protection shells can be driven to move outwards through threaded fit between the two-way lead screw and the I-shaped sliding seat, the steam turbine is convenient to overhaul, grooving in the bottom plate is avoided, and meanwhile the situation that dust falls on the grooves and the racks to affect opening and closing of the shells is avoided.

Description

Technical Field

[0001] This utility model relates to the field of steam turbine technology, and more specifically, to a cylinder insulation mechanism for a steam turbine. Background Technology

[0002] A steam turbine, also known as a steam engine, is a rotary steam power unit. High-temperature, high-pressure steam passes through a fixed nozzle, becomes an accelerated airflow, and is then injected onto blades, causing a rotor equipped with rows of blades to rotate and perform work. Steam turbines are the main equipment in modern thermal power plants and are also used in the metallurgical industry, chemical industry, and ship propulsion systems.

[0003] A search revealed that utility model patent CN221628235U discloses a cylinder insulation mechanism for a steam turbine, comprising a base plate, a shell located at the center of the upper part of the base plate, grooves on both sides of the base plate near the shell, protective covers on both sides of the shell, multiple equidistant rollers below the protective covers, an installation groove on the side of the protective cover near the shell containing multiple insulating cotton, a protective plate on the side of the insulating cotton near the shell, and motor housings on both sides of the lower end of the protective cover near the groove, each housing a motor, the motor's rotating shaft passing through the protective cover and fixedly connected to a gear, and a rack meshing with the gear in the groove. This insulation mechanism has a simple structure, is easy to operate, facilitates installation and disassembly, provides good insulation, avoids the phenomenon of insulating cotton sticking to the shell, and effectively improves the practicality of the insulation structure.

[0004] However, the aforementioned patents still have the following shortcomings: when setting up a heat preservation mechanism on the outside of the steam turbine, it is necessary to cut grooves in the base plate, which is inconvenient for operation. At the same time, dust or debris easily accumulates on the grooves and racks, affecting the opening and closing of the heat preservation shell. To address this, we propose a cylinder heat preservation mechanism for a steam turbine. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a cylinder insulation mechanism for a steam turbine.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A cylinder insulation mechanism for a steam turbine includes a top plate. Four support columns are fixedly connected to the bottom surface of the top plate. Each of the four support columns has a support base fixedly connected to its bottom end, and each support base has a mounting hole. A control mechanism is located on the outer side of one of the support columns, and a moving mechanism is located on the outer side of each of the four support columns. Three sliding grooves are formed on the top surface of the top plate. Two I-shaped slide blocks are slidably connected to the inner cavities of the three sliding grooves. A protective shell is fixedly connected to the bottom end of each of the three I-shaped slide blocks. Insulation cotton is installed inside the two protective shells. A bidirectional lead screw is rotatably connected to the inner cavity of one of the sliding grooves. The two ends of the bidirectional lead screw are threadedly connected to the two I-shaped slide blocks. A servo motor is fixedly installed on the side of the top plate, and the output shaft of the servo motor is connected to the end of the bidirectional lead screw.

[0008] As a preferred embodiment of this utility model, the moving mechanism includes a storage box fixedly connected to the outside of the support column, an electric push rod fixedly installed on the top of the inner cavity of the storage box, and a moving wheel fixedly connected to the output end of the electric push rod.

[0009] As a preferred embodiment of this utility model, the control mechanism includes a control box fixedly connected to the outside of the support column, a battery is provided inside the control box, a control panel is fixedly installed inside the control box, and a door is hinged to the outside of the control box.

[0010] In a preferred embodiment of this utility model, elastic rubber tubes are fixedly connected to the outer sides of the two I-shaped slides, and the ends of the two elastic rubber tubes are connected to the inner wall of the slide groove, and the elastic rubber tubes are sleeved on the outer side of the bidirectional lead screw.

[0011] As a preferred embodiment of this utility model, push handles are fixedly connected to the outer sides of the four support columns.

[0012] In a preferred embodiment of this utility model, the side of the I-shaped slide block is in contact with the inner wall of the slide groove.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] (1) In this utility model, a support base, a support column and a top plate are placed on the side of the steam turbine, and two protective shells are set on the lower part of the I-shaped slide on the top plate. The two protective shells are placed on the outside of the steam turbine to keep it warm. In addition, the two protective shells can be moved outward by the threaded engagement between the double screw and the I-shaped slide, so that the steam turbine can be inspected and repaired. This avoids slotting on the bottom plate and also avoids dust falling on the groove and rack, which affects the opening and closing of the shell.

[0015] (2) In this utility model, the storage box, electric push rod and moving wheel are used together. The electric push rod drives the moving wheel to move down to support the device. The moving wheel can drive the device to move so that the device can be moved away from the steam turbine or moved to the top of the steam turbine for heat preservation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the top plate of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the protective shell of this utility model;

[0019] Figure 4 This is a cross-sectional schematic diagram of the control mechanism of this utility model;

[0020] Figure 5 This is a cross-sectional schematic diagram of the moving mechanism of this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1. Top plate; 2. Support column; 3. Support base; 4. Mounting hole; 5. Moving mechanism; 6. Control mechanism; 7. Slide groove; 8. I-shaped slide block; 9. Two-way lead screw; 10. Servo motor; 11. Elastic rubber tube; 12. Push handle; 13. Protective shell; 14. Insulation cotton; 15. Storage box; 16. Electric push rod; 17. Casters; 18. Control box; 19. Box door; 20. Battery; 21. Control panel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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 orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example:

[0027] Please see Figure 1-5 A cylinder insulation mechanism for a steam turbine includes a top plate 1. Four support columns 2 are fixedly connected to the bottom surface of the top plate 1. Each of the four support columns 2 has a support base 3 fixedly connected to its bottom end. Each support base 3 has a mounting hole 4. A control mechanism 6 is provided on the outside of one support column 2. A moving mechanism 5 is provided on the outside of each of the four support columns 2. Three sliding grooves 7 are provided on the top surface of the top plate 1. Two I-shaped slide blocks 8 are slidably connected to the inner cavity of each of the three sliding grooves 7. A protective shell 13 is fixedly connected to the bottom end of each of the three I-shaped slide blocks 8. Insulation cotton 14 is provided inside each of the two protective shells 13. A bidirectional lead screw 9 is rotatably connected to the inner cavity of one sliding groove 7. The two ends of the bidirectional lead screw 9 are threadedly connected to the two I-shaped slide blocks 8 respectively. A servo motor 10 is fixedly installed on the side of the top plate 1. The output shaft of the servo motor 10 is connected to the end of the bidirectional lead screw 9.

[0028] In this embodiment, the device can be fixed to the outside of the steam turbine by using the mounting hole 4 and the screw.

[0029] For details, please refer to Figure 1 and Figure 5 The moving mechanism 5 includes a storage box 15 fixedly connected to the outside of the support column 2. An electric push rod 16 is fixedly installed on the top of the inner cavity of the storage box 15, and a moving wheel 17 is fixedly connected to the output end of the electric push rod 16.

[0030] For details, please refer to Figure 1 and Figure 4 The control mechanism 6 includes a control box 18 fixedly connected to the outside of the support column 2. The inner cavity of the control box 18 is provided with a storage battery 20. The inner cavity of the control box 18 is fixedly installed with a control panel 21. The outer side of the control box 18 is hinged with a box door 19.

[0031] In this embodiment, the device is powered by a storage battery 20 and controlled by a control panel 21.

[0032] For details, please refer to Figure 1 and Figure 2Two I-shaped slide blocks 8 are respectively fixedly connected to the outer side of the slide block 8. The ends of the two elastic rubber tubes 11 are respectively connected to the inner wall of the slide groove 7. The elastic rubber tubes 11 are sleeved on the outer side of the double-acting screw 9.

[0033] In this embodiment, the outer side of the bidirectional lead screw 9 is protected by the elastic rubber tube 11 to prevent dust from falling on the bidirectional lead screw 9 and affecting its transmission with the I-shaped slide 8.

[0034] For details, please refer to Figure 1 Push handles 12 are fixedly connected to the outer sides of the four support columns 2.

[0035] In this embodiment, the device is pushed by the pusher 12.

[0036] For details, please refer to Figure 1 The side of the I-shaped slide 8 fits against the inner wall of the slide groove 7.

[0037] In this embodiment, the inner wall of the slide groove 7 is used to limit the I-shaped slide block 8, ensuring the stability of the I-shaped slide block 8 sliding in the slide groove 7, while also ensuring the stability of the I-shaped slide block 8 in hoisting the protective shell 13. In addition, it is ensured that two of the I-shaped slide blocks 8 can only move along the axial direction of the bidirectional lead screw 9.

[0038] Working principle: In use, firstly, the electric push rod 16 is activated to drive the moving wheel 17 downward, so that the moving wheel 17 extends out of the inner cavity of the storage box 15. At this time, the bottom end of the storage box 15 is in contact with the ground. The moving wheel 17 drives the device to move, so that the two protective shells 13 move to the outside of the steam turbine for heat preservation. Then, the electric push rod 16 is activated to drive the moving wheel 17 upward, so that the moving wheel 17 retracts into the inner cavity of the storage box 15, and the bottom surface of the support base 3 is in contact with the ground. Then, screws are inserted into the mounting holes 4 to fix the device by inserting the screws into the ground. Finally, when it is necessary to open the protective shell 13 to inspect the steam turbine, the servo motor 10 drives the bidirectional lead screw 9 to rotate. Through the threaded engagement between the bidirectional lead screw 9 and the two I-shaped slides 8, the two I-shaped slides 8 are driven to separate from each other. The I-shaped slides 8 drive the two protective shells 13 to move away from each other, so that the steam turbine can be inspected.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A cylinder insulation mechanism for a steam turbine, characterized in that: The system includes a top plate (1), on which four support columns (2) are fixedly connected to the bottom surface. Each of the four support columns (2) has a support base (3) fixedly connected to its bottom end. Each support base (3) has a mounting hole (4). A control mechanism (6) is provided on the outer side of one support column (2), and a moving mechanism (5) is provided on the outer side of each of the four support columns (2). Three sliding grooves (7) are provided on the top surface of the top plate (1), and two working parts are slidably connected to the inner cavities of the three sliding grooves (7). The bottom of each of the three I-shaped slides (8) is fixedly connected to a protective shell (13). The interior of each of the two protective shells (13) is provided with insulation cotton (14). The inner cavity of one of the slide grooves (7) is rotatably connected to a bidirectional lead screw (9). The two ends of the bidirectional lead screw (9) are threadedly connected to the two I-shaped slides (8) respectively. A servo motor (10) is fixedly installed on the side of the top plate (1). The output shaft of the servo motor (10) is connected to the end of the bidirectional lead screw (9).

2. The cylinder insulation mechanism for a steam turbine according to claim 1, characterized in that: The moving mechanism (5) includes a storage box (15) fixedly connected to the outside of the support column (2). An electric push rod (16) is fixedly installed on the top of the inner cavity of the storage box (15), and a moving wheel (17) is fixedly connected to the output end of the electric push rod (16).

3. The cylinder insulation mechanism for a steam turbine according to claim 1, characterized in that: The control mechanism (6) includes a control box (18) fixedly connected to the outside of the support column (2). The inner cavity of the control box (18) is provided with a battery (20). The inner cavity of the control box (18) is fixedly installed with a control panel (21). The outer side of the control box (18) is hinged with a door (19).

4. The cylinder block heat preservation mechanism for a steam turbine according to claim 1, characterized in that: Two of the I-shaped slide blocks (8) are respectively fixedly connected to the outer side of an elastic rubber tube (11), and the ends of the two elastic rubber tubes (11) are respectively connected to the inner wall of the slide groove (7). The elastic rubber tubes (11) are sleeved on the outer side of the bidirectional screw (9).

5. The cylinder insulation mechanism for a steam turbine according to claim 1, characterized in that: Push handles (12) are fixedly connected to the outer sides of the four support columns (2).

6. The cylinder insulation mechanism for a steam turbine according to claim 1, characterized in that: The side of the I-shaped slide (8) is in contact with the inner wall of the slide groove (7).

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