Shape correction machining device for steam outlet pipe orifice of steam turbine

Abstract

The utility model discloses a steam turbine steam outlet pipe opening shape righting machining device, which belongs to the technical field of shape righting devices, and comprises an adjusting mechanism and a steam turbine steam outlet pipe opening shape righting mechanism, the adjusting mechanism comprises a first limiting pipe, a supporting plate is arranged on the outer surface of the first limiting pipe, two groups of supporting legs are arranged on the outer surface of the supporting plate, and the supporting legs are arranged on the outer surface of the first limiting pipe. Through the arrangement of a first limiting pipe, a second limiting pipe, a limiting screw and a servo motor, people can conveniently adjust the height of the steam turbine steam outlet pipeline opening shape righting mechanism, the shape righting position of an arc-shaped steam turbine steam outlet pipeline shape righting plate can be adjusted, and therefore people can conveniently use equipment; through the arrangement of a hydraulic rod, the arc-shaped steam turbine steam outlet pipeline shape righting plate, a sliding rod, a sliding pipe, a spring, a shape righting hole, a shape righting screw and a strip-shaped opening, not only can people be convenient to shape a steam turbine steam outlet pipe opening, but also the stability of the arc-shaped steam turbine steam outlet pipeline shape righting plate is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of orthopedic device technology, specifically a steam turbine outlet orthopedic processing device. Background Technology

[0002] Steam turbines are one of the three main pieces of equipment in thermal power plants. Their rotors and cylinders have high machining precision, and the main components work in high-temperature and high-pressure environments. If a steam turbine unit suddenly experiences a water ingress failure, the lower cylinder of the unit is usually cooled rapidly, and the temperature difference between the upper and lower cylinders increases sharply, causing the cylinder to undergo significant thermal deformation. In severe cases, the disappearance of the dynamic and static clearance can even lead to rubbing, shaft bending, blade damage or breakage, steam leakage at the valve and cylinder mating surfaces, rubbing between dynamic and static parts, thrust bearing burnout, permanent deformation of high-temperature metal components, and metal cracks caused by thermal stress, seriously affecting the safe and stable operation of the unit.

[0003] One end face of the steam outlet pipe of the low-pressure inner cylinder of the steam turbine is welded to the low-pressure inner cylinder. Due to the heat generated during the welding process, the end face of the steam outlet pipe changes from a cylindrical shape to an elliptical shape. Furthermore, uneven thickness or quality may occur when processing the welding bevel, which causes inconvenience to welding the connecting pipe on the other side of the pipe. Therefore, those skilled in the art have provided a steam turbine steam outlet straightening processing device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a steam turbine outlet straightening processing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A steam turbine outlet pipe straightening processing device includes an adjustment mechanism and a steam turbine outlet pipe straightening mechanism. The adjustment mechanism includes a first limiting tube, a support plate is installed on the outer surface of the first limiting tube, two sets of support legs are installed on the outer surface of the support plate, each support leg is equipped with a traveling wheel on its outer surface, and two inclined plates are installed on the outer surface of the support plate. A pusher is installed on the outer surface of the two inclined plates.

[0007] As a further improvement of this utility model: a first limiting hole is provided on the outer surface of the first limiting tube, and a limiting screw is threadedly connected to the inner wall of the first limiting hole.

[0008] As a further embodiment of this utility model: a second limiting tube is sleeved inside the first limiting tube, and the outer surface of the second limiting tube is provided with second limiting holes arranged at equal intervals.

[0009] As a further improvement of this utility model: a fixing block is installed on the outer surface of the second limiting tube, and a servo motor is installed on the outer surface of the fixing block.

[0010] As a further embodiment of this utility model: the turbine outlet pipe straightening mechanism includes a connecting block, one side of which is connected to the output end of a servo motor.

[0011] As a further improvement of this utility model: two sets of hydraulic rods are installed on the outer surface of the connecting block, and an arc-shaped steam turbine outlet pipe straightening plate is installed at the output end of each hydraulic rod.

[0012] As a further improvement of this utility model: each of the arc-shaped steam turbine outlet pipe straightening plates has two strip-shaped openings on its outer surface, and each of the arc-shaped steam turbine outlet pipe straightening plates has straightening holes arranged at equal intervals on its outer surface, and each of the straightening holes has a straightening screw threaded to its inner wall.

[0013] As a further embodiment of this utility model: two sliding rods and two springs are installed on the outer surface of each of the arc-shaped steam turbine outlet pipe straightening plates, a sliding tube is sleeved on the outside of each sliding rod, the outer surface of each set of sliding tubes is connected to a connecting block, and the ends of each set of springs that are close to each other are connected to the connecting block.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This turbine outlet pipe straightening processing device, through the setting of a first limit tube, a second limit tube, a limit screw, and a servo motor, not only allows for convenient adjustment of the height of the turbine outlet pipe straightening mechanism, but also allows for adjustment of the straightening position of the arc-shaped turbine outlet pipe straightening plate, thus facilitating the use of the equipment. The setting of hydraulic rods, arc-shaped turbine outlet pipe straightening plates, sliding rods, sliding pipes, springs, straightening holes, straightening screws, and strip-shaped openings not only facilitates the straightening of the turbine outlet pipe, but also significantly increases the stability of the arc-shaped turbine outlet pipe straightening plate. The setting of traveling wheels and push handles facilitates the movement of the equipment. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a steam turbine outlet straightening and processing device;

[0017] Figure 2 A rear view of a steam turbine outlet straightening processing device;

[0018] Figure 3 A top view of a steam turbine outlet straightening and machining device;

[0019] Figure 4 A side view of a steam turbine outlet straightening and machining device;

[0020] Figure 5 In a steam turbine outlet straightening processing device Figure 4 A magnified structural diagram of part A in the middle.

[0021] In the diagram: 1. Adjustment mechanism; 101. First limiting tube; 102. First limiting hole; 103. Limiting screw; 104. Second limiting tube; 105. Second limiting hole; 106. Fixing block; 107. Servo motor; 2. Steam turbine outlet pipe straightening mechanism; 201. Connecting block; 202. Hydraulic rod; 203. Arc-shaped steam turbine outlet pipe straightening plate; 204. Strip-shaped opening; 205. Straightening hole; 206. Straightening screw; 207. Sliding tube; 208. Sliding rod; 209. Spring; 3. Support plate; 4. Support leg; 5. Traveling wheel; 6. Inclined plate; 7. Push handle. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0024] Please see Figures 1-5In this embodiment of the utility model, a steam turbine outlet pipe straightening processing device includes an adjustment mechanism 1 and a steam turbine outlet pipe straightening mechanism 2. The adjustment mechanism 1 includes a first limiting pipe 101, a support plate 3 is installed on the outer surface of the first limiting pipe 101, two sets of support legs 4 are installed on the outer surface of the support plate 3, and a traveling wheel 5 is installed on the outer surface of each support leg 4. Two inclined plates 6 are installed on the outer surface of the support plate 3, and a pusher 7 is installed on the outer surface of the two inclined plates 6. This not only facilitates the movement of the equipment and the adjustment of the height of the steam turbine outlet pipe straightening mechanism 2, but also facilitates the use of the equipment to straighten the steam turbine outlet pipe. This solves the problem mentioned in the background art that one end face of the steam turbine low-pressure inner cylinder outlet pipe is welded to the low-pressure inner cylinder. Due to the heat during the welding process, the end face of the outlet pipe changes from cylindrical to elliptical, and uneven thickness or quality occurs when processing the welding bevel, which brings inconvenience to the welding of the connecting pipe on the other side of the pipe.

[0025] The outer surface of the first limiting tube 101 is provided with a first limiting hole 102, and the inner wall of the first limiting hole 102 is threaded with a limiting screw 103. The inside of the first limiting tube 101 is fitted with a second limiting tube 104, and the outer surface of the second limiting tube 104 is provided with second limiting holes 105 arranged at equal intervals. A fixing block 106 is installed on the outer surface of the second limiting tube 104, and a servo motor 107 is installed on the outer surface of the fixing block 106. The turbine outlet pipe straightening mechanism 2 includes a connecting block 201, one side of which is connected to the output end of the servo motor 107. This not only makes it convenient for people to adjust the height of the turbine outlet pipe straightening mechanism 2, but also makes it convenient for people to adjust the position of the arc-shaped turbine outlet pipe straightening plate 203.

[0026] Two sets of hydraulic rods 202 are installed on the outer surface of the connecting block 201. Each hydraulic rod 202 has an arc-shaped steam turbine outlet pipe straightening plate 203 installed at its output end. Each arc-shaped steam turbine outlet pipe straightening plate 203 has two slots 204 on its outer surface and straightening holes 205 arranged at equal intervals on its outer surface. Each straightening hole 205 has a straightening screw 206 threaded to its inner wall. Each arc-shaped steam turbine outlet pipe straightening plate 203 has two sliding rods 208 and two springs 209 installed on its outer surface. Each sliding rod 208 has a sliding tube 207 sleeved on its outer surface. The outer surface of each set of sliding tubes 207 is connected to the connecting block 201. The ends of each set of springs 209 that are close to each other are connected to the connecting block 201. This not only greatly increases the stability of the arc-shaped steam turbine outlet pipe straightening plate 203, but also makes it convenient for people to straighten the steam turbine outlet pipe.

[0027] The working principle of this utility model is as follows: First, the height of the turbine outlet pipe straightening mechanism 2 can be adjusted according to the height of the turbine outlet pipe. After adjusting the height of the turbine outlet pipe straightening mechanism 2, the second limit tube 104 can be positioned using the limit screw 103. Then, the servo motor 107 can be started as needed. The servo motor 107 can drive the arc-shaped turbine outlet pipe straightening plate 203 to rotate. After adjusting the position of the arc-shaped turbine outlet pipe straightening plate 203, the hydraulic rod 202 can be started. The hydraulic rod 202 can drive the arc-shaped turbine outlet pipe straightening plate 203 to support the pipe. Finally, the turbine outlet pipe can be straightened using the straightening screw 206. During the teaching process, auxiliary tools can be used to measure the pipe data through the strip-shaped opening 204.

[0028] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for straightening a steam turbine outlet nozzle, comprising an adjusting mechanism (1) and a steam turbine outlet nozzle straightening mechanism (2), characterized in that, The adjustment mechanism (1) includes a first limiting tube (101), a support plate (3) is installed on the outer surface of the first limiting tube (101), two sets of support legs (4) are installed on the outer surface of the support plate (3), a walking wheel (5) is installed on the outer surface of each support leg (4), and two inclined plates (6) are installed on the outer surface of the support plate (3), and a pusher (7) is installed on the outer surface of the two inclined plates (6).

2. A device for straightening a steam turbine outlet nozzle according to claim 1, characterized in that The outer surface of the first limiting tube (101) is provided with a first limiting hole (102), and the inner wall of the first limiting hole (102) is threaded with a limiting screw (103).

3. A steam turbine outlet nozzle straightening device according to claim 1, wherein The first limiting tube (101) is fitted with a second limiting tube (104) inside, and the outer surface of the second limiting tube (104) is provided with second limiting holes (105) arranged at equal intervals.

4. A steam turbine outlet nozzle straightening device according to claim 3, wherein A fixing block (106) is installed on the outer surface of the second limiting tube (104), and a servo motor (107) is installed on the outer surface of the fixing block (106).

5. A turbine outlet nozzle straightening device according to claim 1, wherein The turbine outlet pipe straightening mechanism (2) includes a connecting block (201), one side of which is connected to the output end of the servo motor (107).

6. A turbine outlet nozzle straightening device according to claim 5, wherein Two sets of hydraulic rods (202) are installed on the outer surface of the connecting block (201), and an arc-shaped steam turbine outlet pipe straightening plate (203) is installed at the output end of each hydraulic rod (202).

7. A steam turbine outlet nozzle straightening device according to claim 6, wherein Each of the arc-shaped steam turbine outlet pipe straightening plates (203) has two strip-shaped openings (204) on its outer surface, and each of the arc-shaped steam turbine outlet pipe straightening plates (203) has straightening holes (205) arranged at equal intervals on its outer surface, and each of the straightening holes (205) has a straightening screw (206) threadedly connected to its inner wall.

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