A ring body plane suspension and rotating device for steam turbine flow reconstruction
Patent Information
- Application Number
- CN202522344519.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-05
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-05
AI Technical Summary
[0004]本实用新型的目的在于提供一种汽轮机通流改造用环体平吊转位装置，以解决上述背景技术提出传统在对环体平吊转位时一般是采用单点起吊，但是这种方式使环体受到的压力集中在一个点，从而容易造成环体结构扭曲变形，破坏环体结构，并且在起吊时容易造成环体晃动并与相邻的环体碰撞，导致对环体造成损伤的问题
1、通过在支撑座外部环形分布多个伸缩杆，并配合安装框与环体卡套连接，并通过多个伸缩杆和安装框对环体边缘进行夹持，从而对环体进行固定，并且在安装时可通过调节伸缩杆的伸缩幅度使支撑座置于环体的中心区域，并使多个伸缩杆由环体中心向外扩张对环体进行外扩支撑，从而通过多点支撑可提高对环体支撑的稳定性，并且对支撑点环形分布可均匀分布支撑时环体承受的压力，从而提高起吊时环体结构的稳定，确保对环体平吊转位的效果和质量。
Smart Images
Figure CN224900652U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steam turbine processing technology, specifically to a ring-shaped horizontal lifting and rotating device for steam turbine flow path modification. Background Technology
[0002] The turbine flow path is one of the core pieces of equipment in a thermal power plant, and its performance directly affects the turbine's efficiency and power generation costs. With increasing energy demand and stricter environmental requirements, traditional flow paths are struggling to meet the demands for high-efficiency, low-emission power generation. Therefore, retrofitting the flow path has become a crucial means of improving unit performance. During turbine flow path retrofitting, the ring body horizontal lifting and rotation is a key process step, primarily aimed at ensuring the safe, accurate, and efficient operation of the ring body during the retrofitting process.
[0003] Traditional single-point lifting methods for horizontally lifting and rotating the turbine rings can easily cause pressure concentration on the rings, which can lead to structural distortion and deformation, affecting the structural stability of the rings. Furthermore, single-point lifting methods can cause the rings to sway, which can cause them to collide with adjacent rings and damage them. Utility Model Content
[0004] The purpose of this utility model is to provide a ring body horizontal lifting and shifting device for turbine flow path modification, so as to solve the problem mentioned in the background art that the traditional method of horizontal lifting and shifting of the ring body is generally to use single-point lifting. However, this method concentrates the pressure on the ring body at one point, which can easily cause the ring body structure to twist and deform, damage the ring body structure, and cause the ring body to sway and collide with adjacent ring bodies during lifting, resulting in damage to the ring body.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a ring-shaped lifting and shifting device for turbine flow path modification, comprising a support base, a support assembly for lifting the turbine ring body is provided outside the support base, the support assembly includes a connecting ring disposed inside the support base, a plurality of telescopic rods are provided on the outer wall of the connecting ring, a connector is provided at the other end of each of the plurality of telescopic rods, an installation frame is provided outside the connector, a sliding groove is provided on the inner wall of the installation frame, a connecting plate is provided inside the installation frame, a slider is provided outside the connecting plate, and a docking block is provided on the outer wall of the connecting plate; The connecting plate has multiple cavities on one side, and each cavity has a retaining spring and a pressure plate on its inner wall. The cavity also has protrusions inside.
[0006] Preferably, the connecting ring is sleeved on the outside of the support base and connected to the support base by bolts. Multiple telescopic rods are distributed in a ring outside the connecting ring, with one end of the telescopic rod connected to the outer wall of the connecting ring and the telescopic output end of the other end connected to the connector. The position of the connector can be adjusted by extending the output end of the telescopic rod.
[0007] Preferably, the mounting frame is hollow inside and has an open structure at one end. The connecting plate is located inside the mounting frame. One end of the slider is connected to the outer wall of the connecting plate, and the other end is embedded in the groove of the inner wall of the mounting frame and slidably connected to the inner wall of the groove.
[0008] Preferably, the docking block is connected to the side of the connecting plate away from the mounting frame, and the end of the connector away from the telescopic rod is rotated and connected to the docking block by screwing, so that the connector and the connecting plate are linked.
[0009] Preferably, the plurality of cavity arrays are distributed on the side of the connecting plate near the inside of the mounting frame, the protrusion is located in the cavity and is slidably connected to the inner wall of the cavity, the retaining spring is distributed on the inner wall of the cavity and abuts against the outer wall of the protrusion, and the retaining spring pushes the protrusion to slide outward in the cavity.
[0010] Preferably, the pressure plate is located inside the cavity and connected to the inner wall of the cavity, and the protrusion can be electrically connected to the pressure plate inside the cavity by sliding inside the cavity.
[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. By distributing multiple telescopic rods in a ring around the outside of the support base, and connecting them with the mounting frame and the ring body clamping sleeve, the ring body is fixed by clamping the edges of the ring body through the multiple telescopic rods and the mounting frame. During installation, the support base can be placed in the center area of the ring body by adjusting the extension range of the telescopic rods, and the multiple telescopic rods expand outward from the center of the ring body to provide external support. This multi-point support improves the stability of the ring body support, and the ring distribution of support points evenly distributes the pressure on the ring body during support, thereby improving the stability of the ring body structure during lifting and ensuring the effectiveness and quality of the horizontal lifting and rotation of the ring body.
[0012] 2. By setting a retractable protrusion on one side of the connecting plate inside the mounting frame, the connecting plate is pushed to slide inside the mounting frame when the telescopic rod extends outward, thereby cooperating with the mounting frame to clamp and fix the edge of the ring. When the connecting plate abuts against the edge of the ring, it can push the protrusion to retract into the cavity and press the pressure plate. Thus, the pressure of the connecting plate supporting the ring's outward expansion can be detected through the pressure plate. By detecting the support pressure at multiple support points, the pressure distribution can be made uniform, ensuring the support effect.
[0013] This utility model uses multiple telescopic rods to provide outward support for the ring body, thereby achieving multi-point support for the ring body, improving the stability of the ring body during lifting, and evenly distributing the pressure on the ring body, ensuring the structural stability of the ring body during hoisting, and guaranteeing the stability and effectiveness of horizontal lifting and rotation of the ring body. Attached Figure Description
[0014] Figure 1This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a structural diagram of the separate mounting frame and telescopic rod of this utility model; Figure 3 For the present utility model Figure 2 Enlarged view of part A in the image; Figure 4 This is an internal sectional view of the mounting frame of this utility model.
[0015] In the diagram: 1. Support base; 2. Connecting ring; 3. Telescopic rod; 301. Connector; 4. Mounting frame; 401. Slide groove; 5. Connecting plate; 501. Slider; 502. Connecting block; 6. Cavity; 601. Snap ring; 602. Pressure plate; 7. Protrusion. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figures 1-3 A ring-shaped lifting and shifting device for turbine flow path modification includes a support base 1. A support assembly for lifting the turbine ring is provided outside the support base 1. The support assembly includes a connecting ring 2 disposed inside the support base 1. The connecting ring 2 is sleeved on the outside of the support base 1 and linked with it. Multiple telescopic rods 3 are provided on the outer wall of the connecting ring 2. The telescopic rods 3 can extend and retract, adjusting the extension length of the connecting head 301. Each of the other ends of the multiple telescopic rods 3 is provided with a connecting head 301, which can connect to a connecting plate 5 inside a mounting frame 4. A mounting frame 4 is provided outside the connecting head 301, and the mounting frame 4 can be sleeved on the edge of the ring. A sliding groove 401 is provided on the inner wall of the mounting frame 4 to position the angle of the connecting plate 5 when it slides within the mounting frame 4. The connecting plate 5 is provided inside the mounting frame 4, and a slider 501 is provided outside the connecting plate 5. A mating block 502 is provided on the outer wall of the connecting plate 5, which can cooperate with the mounting frame 4 to clamp the edge of the ring.
[0018] The connecting ring 2 is sleeved on the outside of the support base 1 and connected to the support base 1 by bolts. Multiple telescopic rods 3 are distributed in a ring outside the connecting ring 2. One end of the telescopic rod 3 is connected to the outer wall of the connecting ring 2, and the telescopic output end of the other end is connected to the connector 301. The position of the connector 301 can be adjusted by extending the output end of the telescopic rod 3. The mounting frame 4 is hollow inside and has an open structure at one end. The connecting plate 5 is located inside the mounting frame 4. One end of the slider 501 is connected to the outer wall of the connecting plate 5, and the other end is embedded in the groove 401 in the inner wall of the mounting frame 4 and is slidably connected to the inner wall of the groove 401. The mating block 502 is connected to the side of the connecting plate 5 away from the mounting frame 4. The end of the connector 301 away from the telescopic rod 3 is rotated and connected to the mating block 502 by screwing, so that the connector 301 and the connecting plate 5 are linked.
[0019] In this embodiment: during use, the mounting frame 4 can be fitted onto the edge of the ring, then the support base 1 is placed in the central area of the ring, and the telescopic rod 3 is controlled to push the connector 301 to extend outward and extend to the other end of the connector 301 to be screwed to the mating block 502 on the outer wall of the connecting plate 5 inside the mounting frame 4. Then, the telescopic rod 3 is controlled to extend outward again and push the connecting plate 5 to slide inside the mounting frame 4, so that the connecting plate 5 cooperates with the mounting frame 4 to clamp the edge of the ring, and cooperates with the supporting force of the telescopic rod 3 to provide outward support for the ring, thereby realizing multi-point support and fixation of the ring, improving the stability of the ring when lifting, and the pressure on the ring can be distributed through multi-point support, ensuring the integrity and stability of the ring structure, and effectively reducing the probability of deformation of the ring.
[0020] Please see Figure 4 The connecting plate 5 has multiple cavities 6 on one side, which can accommodate the protrusions 7 and position the protrusions 7 at the angle when they slide. The inner walls of the multiple cavities 6 are provided with snap rings 601 and pressure plates 602. The snap rings 601 can abut against the outer wall of the pressure plate 602, and the snap rings 601 support the protrusions 7 with their own toughness and angle, and push them to slide outward. The protrusions 7 are provided inside the cavities 6.
[0021] Multiple cavities 6 are arrayed on the side of the connecting plate 5 near the inside of the mounting frame 4. The protrusions 7 are located inside the cavities 6 and are slidably connected to the inner wall of the cavities 6. The retaining springs 601 are distributed on the inner wall of the cavities 6 and abut against the outer wall of the protrusions 7. The retaining springs 601 push the protrusions 7 to slide outward in the cavities 6. The pressure plate 602 is located inside the cavities 6 and is connected to the inner wall of the cavities 6. The protrusions 7 can be electrically connected to the pressure plate 602 inside the cavities 6 by sliding inside the cavities 6.
[0022] In this embodiment: when the telescopic rod 3 pushes the connecting plate 5 to abut against the ring body, the protrusion 7 extending from the other side of the connecting plate 5 will abut against the outer wall of the ring body, and by squeezing, the protrusion 7 will retract into the cavity 6 on one side of the connecting plate 5, and press against the pressure plate 602 on the inner wall of the cavity 6 during the retraction. The pressure plate 602 can detect the pressure applied by the connecting plate 5 to the ring body. By detecting the pressure at multiple support points, the support force is evenly distributed and the stability of the ring body is improved during hoisting.
[0023] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A ring-shaped lifting and shifting device for turbine flow path modification, comprising a support base (1), wherein the support base (1) is externally provided with a support assembly for lifting the turbine ring, characterized in that: The support assembly includes a connecting ring (2) disposed inside the support base (1), a plurality of telescopic rods (3) are disposed on the outer wall of the connecting ring (2), and a connector (301) is disposed at the other end of each of the plurality of telescopic rods (3). A mounting frame (4) is disposed outside the connector (301), a sliding groove (401) is disposed on the inner wall of the mounting frame (4), a connecting plate (5) is disposed inside the mounting frame (4), a slider (501) is disposed outside the connecting plate (5), and a mating block (502) is disposed on the outer wall of the connecting plate (5). The connecting plate (5) has multiple cavities (6) on one side. Each cavity (6) has a retaining ring (601) and a pressure plate (602) on its inner wall. The cavity (6) has a protrusion (7) inside.
2. The annular horizontal lifting and shifting device for turbine flow path modification according to claim 1, characterized in that: The connecting ring (2) is sleeved on the outside of the support base (1) and connected to the support base (1) by bolts. Multiple telescopic rods (3) are distributed in a ring outside the connecting ring (2). One end of the telescopic rod (3) is connected to the outer wall of the connecting ring (2), and the telescopic output end of the other end is connected to the connector (301). The position of the connector (301) can be adjusted by extending the output end of the telescopic rod (3).
3. The annular horizontal lifting and shifting device for turbine flow path modification according to claim 2, characterized in that: The mounting frame (4) is hollow inside and has an open structure at one end. The connecting plate (5) is located inside the mounting frame (4). One end of the slider (501) is connected to the outer wall of the connecting plate (5), and the other end is embedded in the groove (401) of the inner wall of the mounting frame (4) and is slidably connected to the inner wall of the groove (401).
4. The annular horizontal lifting and shifting device for turbine flow path modification according to claim 2, characterized in that: The docking block (502) is connected to the side of the connecting plate (5) away from the mounting frame (4), and the end of the connector (301) away from the telescopic rod (3) is rotated and connected to the docking block (502) by screwing, so that the connector (301) and the connecting plate (5) are linked.
5. The annular horizontal lifting and shifting device for turbine flow path modification according to claim 1, characterized in that: Multiple cavities (6) are arrayed on the side of the connecting plate (5) near the inside of the mounting frame (4). The protrusion (7) is located inside the cavity (6) and is slidably connected to the inner wall of the cavity (6). The retaining ring (601) is distributed on the inner wall of the cavity (6) and abuts against the outer wall of the protrusion (7). The retaining ring (601) pushes the protrusion (7) to slide outward in the cavity (6).
6. The annular horizontal lifting and shifting device for turbine flow path modification according to claim 5, characterized in that: The pressure plate (602) is located inside the cavity (6) and is connected to the inner wall of the cavity (6). The protrusion (7) can be electrically connected to the pressure plate (602) inside the cavity (6) by sliding inside the cavity (6).