Thermal insulation protection structure of steam turbine

Abstract

The utility model discloses a steam turbine heat insulation protection structure which comprises a base, bottom feet are symmetrically and fixedly connected to the bottom of the base, a steam turbine body is fixedly connected to the top of the base, a protection mechanism is arranged on the top of the base, and the protection mechanism comprises a protection assembly and a connecting assembly. The protection assembly and the connecting assembly are used in cooperation, the protection assembly comprises a motor, the motor is fixedly connected to one side of the top of the base, mounting plates are symmetrically and fixedly connected to the top of the base, the output end of the motor is fixedly connected with an auxiliary gear, and the main gear and the auxiliary gear are connected in a meshed mode. According to the thermal insulation protection structure of the steam turbine, the protective cover and the protective frame are matched with each other, the steam turbine body can be isolated, workers are prevented from being scalded, meanwhile, heat dissipation of the steam turbine body cannot be affected through the first protective net and the second protective net, the structure is simple, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of steam turbine heat insulation protection technology, and in particular to a steam turbine heat insulation protection structure. Background Technology

[0002] The working principle of a steam turbine is to utilize high-temperature, high-pressure steam passing through fixed nozzles to become an accelerated airflow, which is then injected onto the blades, causing the rotor equipped with blades to rotate and perform work. The expansion process of steam in the steam turbine is divided into two parts: the stationary blade cascade and the moving blade cascade. Within the stationary blade cascade, the steam is accelerated and expanded, completing the conversion of thermal energy into kinetic energy. When the airflow enters the moving blade cascade, due to the gradual contraction of the moving blade flow channel cross-section, the airflow is further depressurized, expanded, and accelerated, generating an impact force (impact force) and a reaction force (reaction force) on the blades. Under the combined action of these two forces, the main shaft of the steam turbine is driven to rotate, generating mechanical work.

[0003] Steam turbines require protection through their metal casings during operation. However, existing steam turbines have relatively simple structures, and their surface metal casings accumulate a large amount of heat. If users accidentally touch the steam turbine, they are easily burned. To address these issues, we have developed a steam turbine heat insulation protection structure. Utility Model Content

[0004] This utility model discloses a heat insulation protection structure for a steam turbine, which aims to solve the technical problem that the steam turbine has a relatively simple structure, and its surface metal shell will accumulate a lot of heat, so when users accidentally touch the steam turbine, they are easily burned by the steam turbine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A steam turbine heat insulation protection structure includes a base, with feet symmetrically fixedly connected to the bottom of the base, and a steam turbine body fixedly connected to the top of the base. A protective mechanism is provided on the top of the base, comprising a protective component and a connecting component, which cooperate with each other. The protective component includes a motor fixedly connected to one side of the top of the base. Mounting plates are symmetrically fixedly connected to the top of the base, and a rotating shaft is rotatably connected between the two mounting plates. A protective cover is fixedly connected to the outer side of the rotating shaft, and a protective mesh is provided inside the protective cover. A connecting rod is fixedly connected to the top of the protective cover. One end of the rotating shaft extends to the outer side of the mounting plate and is fixedly connected to a main gear. A secondary gear is fixedly connected to the output end of the motor, and the main gear and the secondary gear are meshed together.

[0007] In a preferred embodiment, the connecting assembly includes a sliding column that is slidably connected inside the base. An L-shaped fixing plate is fixedly connected to one end of the sliding column near the turbine body. An arc-shaped groove is provided inside the L-shaped fixing plate. A positioning plate is fixedly connected to the other end of the sliding column. A spring is sleeved on the outer side of the sliding column.

[0008] In a preferred embodiment, the top of the base is symmetrically and fixedly connected with a protective frame, and the interior of each protective frame is fixedly connected with a second protective net.

[0009] In a preferred embodiment, the top of the L-shaped fixing plate is inclined, and a rubber pad for increasing friction is fixedly connected inside the arc-shaped groove.

[0010] In a preferred embodiment, a controller is fixedly connected to the top side of the base.

[0011] In a preferred embodiment, the motor is electrically connected to the controller.

[0012] The turbine heat insulation protection structure provided by this utility model has the following advantages:

[0013] Firstly, the protective cover and frame work together to isolate the turbine body and prevent workers from getting burned. At the same time, the No. 1 and No. 2 protective nets do not affect the heat dissipation of the turbine body. The structure is simple and highly practical.

[0014] Secondly, the rubber pads increase friction, and the controller makes it easier for staff to turn the motor on and off, making operation simpler. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a steam turbine heat insulation protection structure proposed in this utility model.

[0016] Figure 2 This is a three-dimensional rear view schematic diagram of a steam turbine heat insulation protection structure proposed in this utility model.

[0017] Figure 3 This is a three-dimensional schematic diagram of a protective cover for a steam turbine heat insulation protection structure proposed in this utility model.

[0018] Figure 4 This is a three-dimensional schematic diagram of the connecting components of a steam turbine heat insulation protection structure proposed in this utility model;

[0019] Figure 5 This is a schematic diagram of the protective frame of a steam turbine heat insulation protection structure proposed in this utility model.

[0020] In the attached diagram: 1. Base; 2. Foot; 3. Steam turbine body; 41. Motor; 42. Mounting plate; 43. Rotating shaft; 44. Main gear; 45. Secondary gear; 46. Protective cover; 47. First protective net; 48. Connecting rod; 5. Sliding column; 6. L-shaped fixing plate; 7. Arc groove; 8. Spring; 9. Positioning plate; 10. Protective frame; 11. Second protective net; 12. Controller. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] Reference Figure 1 - Figure 4 A steam turbine heat insulation protection structure includes a base 1, with feet 2 symmetrically fixedly connected to the bottom of the base 1, and a steam turbine body 3 fixedly connected to the top of the base 1. A protective mechanism is provided on the top of the base 1, including a protective component and a connecting component. The protective component and the connecting component cooperate with each other. The protective component includes a motor 41, which is fixedly connected to one side of the top of the base 1. Mounting plates 42 are symmetrically fixedly connected to the top of the base 1. A rotating shaft 43 is rotatably connected between the two mounting plates 42. A protective cover 46 is fixedly connected to the outside of the rotating shaft 43. A first protective net 47 is provided inside the protective cover 46. A connecting rod 48 is fixedly connected to the top of the protective cover 46. One end of the rotating shaft 43 extends to the outside of the mounting plate 42 and is fixedly connected to a main gear 44. A secondary gear 45 is fixedly connected to the output end of the motor 41. The main gear 44 and the secondary gear 45 are meshed together. The connecting assembly includes a sliding column 5, which is slidably connected inside the base 1. An L-shaped fixing plate 6 is fixedly connected to one end of the sliding column 5 near the turbine body 3. An arc-shaped groove 7 is provided inside the L-shaped fixing plate 6. A positioning plate 9 is fixedly connected to the other end of the sliding column 5. A spring 8 is sleeved on the outside of the sliding column 5. Protective frames 10 are symmetrically fixedly connected to the top of the base 1. A second protective net 11 is fixedly connected inside each of the protective frames 10.

[0023] In the above technical solution, considering that the turbine has a relatively simple structure and its surface metal casing can accumulate a lot of heat, users are easily burned when they accidentally touch the turbine. To solve this problem, the specific operation is as follows:

[0024] Reference Figure 1 - Figure 4 In a preferred embodiment, the operator needs to cover the turbine body 3 to avoid burns. First, the operator starts the motor 41. The output end of the motor 41 drives the auxiliary gear 45 to rotate. The rotation of the auxiliary gear 45 drives the main gear 44 to rotate. The rotation of the main gear 44 drives the rotating shaft 43 to rotate. The rotation of the rotating shaft 43 drives the protective cover 46 to rotate until the connecting rod 48 enters the interior of the arc groove 7. Under the tension of the spring 8, the protective cover 46 is supported on the outside of the turbine body 3. The protective cover 46 and the protective frame 10 work together to isolate the turbine body 3 and prevent the operator from being burned. At the same time, the heat dissipation of the turbine body 3 is not affected by the first protective net 47 and the second protective net 11. The structure is simple and highly practical.

[0025] Reference Figure 1 - Figure 4 In a preferred embodiment, the top of the L-shaped fixing plate 6 is inclined, and a rubber pad for increasing friction is fixedly connected inside the arc-shaped groove 7. A controller 12 is fixedly connected to one side of the top of the base 1. The motor 41 is electrically connected to the controller 12. The rubber pad increases friction, and the controller 12 facilitates the operator's control of the motor 41's opening and closing, making operation simpler.

[0026] Working principle: In actual use, the operator needs to cover the turbine body 3 to avoid burns. First, the operator starts the motor 41. The output end of the motor 41 drives the auxiliary gear 45 to rotate. The rotation of the auxiliary gear 45 drives the main gear 44 to rotate. The rotation of the main gear 44 drives the rotating shaft 43 to rotate. The rotation of the rotating shaft 43 drives the protective cover 46 to rotate until the connecting rod 48 enters the arc groove 7. Under the tension of the spring 8, the protective cover 46 is supported on the outside of the turbine body 3. Through the cooperation of the protective cover 46 and the protective frame 10, the turbine body 3 can be isolated to prevent the operator from being burned. At the same time, the heat dissipation of the turbine body 3 will not be affected by the first protective net 47 and the second protective net 11.

[0027] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A steam turbine heat insulation protection structure, comprising a base (1), characterized in that: The bottom of the base (1) is symmetrically fixedly connected with feet (2), and the top of the base (1) is fixedly connected with a turbine body (3). The top of the base (1) is provided with a protective mechanism, which includes a protective component and a connecting component. The protective component and the connecting component work together. The protective assembly includes a motor (41), which is fixedly connected to the top side of the base (1). The top of the base (1) is symmetrically fixedly connected to mounting plates (42). A rotating shaft (43) is rotatably connected between the two mounting plates (42). A protective cover (46) is fixedly connected to the outside of the rotating shaft (43). A first protective net (47) is provided inside the protective cover (46). A connecting rod (48) is fixedly connected to the top of the protective cover (46). One end of the rotating shaft (43) extends to the outside of the mounting plate (42) and is fixedly connected to a main gear (44). A secondary gear (45) is fixedly connected to the output end of the motor (41). The main gear (44) and the secondary gear (45) are meshed together.

2. The turbine thermal insulation protection structure according to claim 1, characterized in that: The connecting assembly includes a sliding column (5), which is slidably connected inside the base (1). An L-shaped fixing plate (6) is fixedly connected to one end of the sliding column (5) near the turbine body (3). An arc groove (7) is opened inside the L-shaped fixing plate (6). A positioning plate (9) is fixedly connected to the other end of the sliding column (5). A spring (8) is sleeved on the outside of the sliding column (5).

3. The turbine thermal insulation protection structure according to claim 1, characterized in that: The top of the base (1) is symmetrically fixedly connected with a protective frame (10), and the interior of the protective frame (10) is fixedly connected with a second protective net (11).

4. The turbine heat insulation protection structure according to claim 2, characterized in that: The top of the L-shaped fixing plate (6) is inclined, and the inside of the arc-shaped groove (7) is fixedly connected with a rubber pad for increasing friction.

5. The turbine thermal insulation protection structure according to claim 1, characterized in that: A controller (12) is fixedly connected to one side of the top of the base (1).

6. The turbine thermal insulation protection structure according to claim 1, characterized in that: The motor (41) is electrically connected to the controller (12).

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