A quick-installation structure for casing wall panels

The structure of sleeve, retaining ring and limiting block enables rapid installation and disassembly of the casing wall panel and the gas turbine housing frame, solving the problem of cumbersome and complicated disassembly process caused by traditional connection methods, and improving operation efficiency and safety.

CN224432667UActive Publication Date: 2026-06-30CHENGLIN TECH (SHANGHAI) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGLIN TECH (SHANGHAI) CO LTD
Filing Date
2025-07-02
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditionally, the casing panels are connected to the gas turbine housing frame using bolts and nuts, which makes the disassembly process cumbersome and complicated, increasing the difficulty and time cost of installation and maintenance.

Method used

The structure employs a sleeve, retaining ring, and limiting block, with the studs threadedly connected to the limiting blocks, enabling rapid installation and disassembly of the casing wall panels and the gas turbine housing frame. Only one operator is required to complete the task, and the retaining ring prevents the studs from falling out of the sleeve.

Benefits of technology

It simplifies the operation, reduces the risk of workpiece loss, improves installation and disassembly efficiency, and reduces the difficulty of on-site operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of gas turbine enclosure installation technology, specifically disclosing a quick-installation structure for a casing wall panel. The structure includes a sleeve mounted on the casing wall panel, a limiting block mounted on the gas turbine enclosure frame and corresponding to the sleeve position, and a stud passing through the inside of the sleeve and threadedly connected to the limiting block. The limiting block has a first connecting hole adapted to the stud, and the sleeve has a retaining ring inside that allows the stud to pass through. The diameter of the joint between the stud and the connecting hole is larger than the diameter of the joint between the stud and the retaining ring. This design solves the problem that traditional casing wall panels are typically connected to the gas turbine enclosure frame using bolts and nuts, leading to cumbersome disassembly processes and increased installation and maintenance difficulties.
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Description

Technical Field

[0001] This application relates to the field of gas turbine enclosure installation technology, and specifically discloses a quick-installation structure for the enclosure wall panel. Background Technology

[0002] In a gas turbine, the turbine casing serves to prevent dust, rainwater, and other debris from entering the turbine's interior; it also prevents internal components from being contaminated, corroded, or damaged, ensuring the normal operation of the equipment. Simultaneously, the turbine casing also reduces the heat generated during turbine operation from dissipating into the surrounding environment, while minimizing the impact of operating noise on the surrounding environment.

[0003] Because gas turbines require maintenance and repair, the casing wall panels need to be disassembled. Traditional casing wall panels are usually connected to the gas turbine casing frame using bolts and nuts, requiring two operators to work from both inside and outside the casing. Furthermore, bolts and nuts may be lost during construction, hindering installation and maintenance, and increasing the difficulty and time cost of maintenance work. In view of this, this utility model provides a quick installation structure for casing wall panels to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the traditional casing wall panel is usually connected to the gas turbine box frame by bolts and nuts, which leads to a cumbersome and complicated disassembly process and increased installation and maintenance difficulty.

[0005] To achieve the above objectives, the basic solution of this utility model provides a quick-installation structure for a casing wall panel, including a sleeve disposed on the casing wall panel, a limiting block disposed on the gas turbine housing frame and corresponding to the position of the sleeve, and a stud passing through the inside of the sleeve and threadedly connected to the limiting block. The limiting block is provided with a first connecting hole adapted to the stud, and the inside of the sleeve is provided with a retaining ring that allows the stud to pass through. The diameter of the part where the stud mates with the connecting hole is larger than the diameter of the part where the stud mates with the retaining ring.

[0006] The principle and effect of this basic scheme are as follows:

[0007] Compared with the prior art, this utility model, by setting up a sleeve, a retaining ring, and a limiting block, allows only one operator to fix or disassemble the cover wall panel from the outside during the disassembly and assembly process. Furthermore, during the disassembly and assembly process, the stud is restricted by the retaining ring and stays inside the sleeve, that is, the stud stays on the cover wall panel and does not fall to the ground, which greatly reduces the complexity of on-site operation and the risk of workpiece loss. It effectively solves the problem that the traditional cover wall panel is usually connected to the gas turbine housing frame by bolts and nuts, which leads to a cumbersome and complicated disassembly process and increased installation and maintenance difficulty.

[0008] Furthermore, the retaining ring is provided with a second connecting hole adapted to the stud, and one end of the stud extends out of the second connecting hole and is provided with a nut with a diameter larger than the second connecting hole. This facilitates the operator's rotation of the stud, while the retaining ring can limit the position of the nut to prevent the nut from being too deep and affecting the operator's ability to tighten the stud.

[0009] Furthermore, both the first connecting hole and the second connecting hole are internally threaded holes. The stud includes a smooth section connected to the nut and an externally threaded section connected to the smooth section with a diameter larger than the smooth section. The externally threaded section is adapted to the internally threaded hole. This allows the position of the stud to be limited by the retaining ring, and the stud to cooperate with the retaining ring and the limiting block respectively.

[0010] Furthermore, the distance between the first connecting hole and the second connecting hole is less than the length of the external thread section. This is to ensure that the stud remains inside the sleeve during the assembly and disassembly of the casing panel.

[0011] Furthermore, it also includes a limiting box disposed on the gas turbine housing frame, with the limiting block disposed within the limiting box to provide protection for the limiting block.

[0012] Furthermore, the limiting block has a mating groove on the side near the sleeve, and the stud has a tapping pad that matches the mating groove. This improves the tightness of the fit between the stud and the limiting block.

[0013] Furthermore, a square mounting groove is provided on the gas turbine housing frame. One end of the limiting block is connected to the limiting box, and the other end of the limiting block is engaged in the mounting groove. This further limits the position of the limiting block and prevents it from becoming loose or falling off.

[0014] Furthermore, the limiting box has a through hole on the side away from the sleeve to accommodate the protruding stud. This is to prevent the stud from colliding with the limiting box and affecting the normal locking effect.

[0015] Furthermore, it also includes a channel steel located on the side of the casing panel near the gas turbine housing frame, an installation hole penetrating the channel steel and accommodating the sleeve installation, and an inspection hole on the side wall of the casing panel corresponding to the installation hole position. This improves the fixing effect of the sleeve and facilitates the operator to tighten the studs.

[0016] Furthermore, the diameter of the inspection hole is larger than the diameter of the mounting hole. This further facilitates the operator in using external tools (such as an Allen wrench) to tighten the stud. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a quick-installation structure for a housing panel according to an embodiment of this application is shown. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] The reference numerals in the accompanying drawings of the instruction manual include: 1. Gas turbine housing frame; 2. Cover wall panel; 3. Channel steel; 4. Sleeve; 5. Stud; 6. Retaining ring; 7. Limiting box; 8. Limiting block; 9. Tapping pad.

[0021] A quick-installation structure for a housing panel, implemented as follows: Figure 1 As shown: including a channel steel 3 located on the side of the cover wall panel 2 near the gas turbine housing frame 1, a mounting hole penetrating the channel steel 3, an inspection hole opened on the side wall of the cover wall panel 2 corresponding to the mounting hole and with a diameter larger than the mounting hole, a sleeve 4 located in the mounting hole, a limiting box 7 located on the gas turbine housing frame 1 corresponding to the position of the sleeve 4, a limiting block 8 located in the limiting box 7, and a stud 5 passing through the inside of the sleeve 4 and threadedly connected to the limiting block 8.

[0022] The sleeve 4 has a retaining ring 6 inside that allows the stud 5 to pass through. The limiting block 8 has a first connecting hole that matches the stud 5, and the retaining ring 6 has a second connecting hole that matches the stud 5. The first connecting hole and the second connecting hole are both internal threaded holes. The stud 5 includes a smooth section and an external threaded section connected to the smooth section with a diameter larger than the smooth section. The external threaded section matches the internal threaded hole. The distance between the first connecting hole and the second connecting hole is less than the length of the external threaded section. One end of the smooth section extends out of the second connecting hole and is provided with a nut with a diameter larger than the second connecting hole.

[0023] The limiting box 7 has a through hole on the side away from the sleeve 4 that allows the stud 5 to extend out. The gas turbine housing frame 1 has a square mounting groove. One end of the limiting block 8 is connected to the limiting box 7, and the other end of the limiting block 8 is engaged in the mounting groove. The limiting block 8 has a mating groove on the side near the sleeve 4. The stud 5 has a tapping pad 9 that matches the mating groove.

[0024] In this embodiment, only one operator needs to use an external tool (such as an Allen wrench) to tighten the stud 5, so that the stud 5 and the limiting block 8 can be tightened or loosened to complete the mutual fixation or disassembly between the cover wall panel 2 and the gas turbine housing frame 1. During this process, due to the restriction of the retaining ring 6, the stud 5 cannot be directly detached from the sleeve 4. Instead, the external thread section remains in the sleeve 4, while part of the smooth section and the nut protrude from the sleeve 4. That is, the stud 5 stays on the cover wall panel 2 and does not fall to the ground, which greatly reduces the complexity of on-site operation and the risk of workpiece loss. It effectively solves the problem that the traditional cover wall panel 2 is usually connected to the gas turbine housing frame 1 by bolts and nuts, which leads to a cumbersome and complicated disassembly process and increased installation and maintenance difficulty.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A quick-installation structure for a casing wall panel, characterized in that: It includes a sleeve mounted on the casing wall panel, a limiting block mounted on the gas turbine housing frame and corresponding to the position of the sleeve, and a stud passing through the inside of the sleeve and threadedly connected to the limiting block. The limiting block has a first connecting hole adapted to the stud, and the inside of the sleeve has a retaining ring that allows the stud to pass through. The diameter of the part where the stud mates with the connecting hole is larger than the diameter of the part where the stud mates with the retaining ring.

2. The quick-installation structure for a casing wall panel according to claim 1, characterized in that, The retaining ring is provided with a second connecting hole adapted to the stud, and one end of the stud extends out of the second connecting hole and is provided with a nut with a diameter larger than the second connecting hole.

3. The quick-installation structure for a casing wall panel according to claim 2, characterized in that, Both the first connecting hole and the second connecting hole are internal threaded holes. The stud includes a smooth section connected to the nut and an external threaded section connected to the smooth section with a diameter larger than that of the smooth section. The external threaded section is adapted to the internal threaded hole.

4. The quick-installation structure for a casing wall panel according to claim 3, characterized in that, The distance between the first connecting hole and the second connecting hole is less than the length of the external thread section.

5. The quick-installation structure for a casing wall panel according to claim 1, characterized in that, It also includes a limiting box installed on the gas turbine housing frame, and the limiting block is located inside the limiting box.

6. The quick-installation structure for a casing wall panel according to claim 5, characterized in that, The limiting block has a mating groove on the side near the sleeve, and the stud has a tapping pad that matches the mating groove.

7. The quick-installation structure for a casing wall panel according to claim 5, characterized in that, The gas turbine housing frame has a square mounting groove. One end of the limiting block is connected to the limiting box, and the other end of the limiting block is engaged in the mounting groove.

8. The quick-installation structure for a casing wall panel according to claim 5, characterized in that, The limiting box has a through hole on the side away from the sleeve that allows the stud to protrude.

9. The quick-installation structure for a casing wall panel according to claim 1, characterized in that, It also includes a channel steel located on the side of the casing wall panel near the gas turbine housing frame, an installation hole penetrating the channel steel and accommodating sleeve installation, and an inspection hole opened on the side wall of the casing wall panel corresponding to the position of the installation hole.

10. A quick-installation structure for a casing wall panel according to claim 9, characterized in that, The diameter of the inspection hole is larger than the diameter of the mounting hole.