Tool for sealing bearing box of steam turbine
By designing the workpiece for bearing box sealing of the turbine and using the blocking structure of the bearing box cover and threaded pipe joints, the problem of lubricant leakage is solved, the unit is sealed and convenient maintenance is achieved, and the cost is reduced.
Patent Information
- Application Number
- CN202323542244.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-25
AI Technical Summary
The bearing box of the steam turbine unit frequently experiences lubricant leakage during operation, and the existing sealing method cannot be effectively solved, which will affect the unit disassembly inspection.
A steam turbine bearing box sealing tool is designed, including bearing box pressure cover, threaded pipe joint, blockage and compression nut cover. The seal is achieved by fixing and installing the tight parts and using blockage. The temperature measuring line passes through the threaded pipe joint and compression. Tighten the nut cap to avoid leakage.
It effectively avoids lubricant leakage, simplifies the disassembly and assembly and maintenance process, achieves sealing effect, facilitates on-site maintenance, and reduces costs.
Smart Images
Figure CN222185498U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a sealing tool, in particular to a tool for sealing a steam turbine bearing box. The utility model is used in the field of steam turbines. Background Art
[0002] The temperature measuring line of the turbine unit bearing box is led out from the center surface of the cylinder through the center surface wire groove. This structure frequently causes lubricating oil leakage when the unit is running. The leakage problem cannot be effectively solved by applying sealant and other methods. At the same time, the application of sealant affects the disassembly and inspection of the unit, and the temperature measuring line cannot be removed. Utility Model Content
[0003] The utility model aims to solve the problem of lubricating oil leakage during the operation of a steam turbine unit, and further provides a tool for sealing a steam turbine bearing box.
[0004] The technical solution of the utility model is:
[0005] A tool for sealing a turbine bearing box, comprising a bearing box gland, two threaded pipe joints, two plugs, two clamping nut covers and a plurality of tightening pieces; the bearing box gland is a plate body, the bearing box gland cover is arranged on the bearing box, and the bearing box gland is installed on the bearing box through a plurality of tightening pieces, one end of the two threaded pipe joints is threadedly connected and installed on the bearing box gland, the other end of the threaded pipe joint is filled with a plug, and the clamping nut cover is threadedly installed on the other end of the threaded pipe joint, and a temperature measuring line is arranged through the inner hole of the threaded pipe joint, the plug and the clamping nut cover.
[0006] Furthermore, the fastener is a hexagonal bolt, a plurality of hexagonal bolts are arranged on the bearing box gland, and the bearing box gland is fixedly mounted on the bearing box by the plurality of hexagonal bolts.
[0007] Further, a plugging and compacting device is provided on the other end of the threaded pipe joint.
[0008] Furthermore, the plate body is a rectangular plate body.
[0009] Furthermore, a hexagonal body is processed in the middle of the threaded pipe joint.
[0010] Further, the number of the tightening members is eight, two tightening members are arranged side by side, and the eight tightening members are symmetrically arranged on both sides of the tightening member.
[0011] Compared with the prior art, the utility model has the following effects:
[0012] 1. The tooling for sealing the bearing box of a steam turbine disclosed in the present application ensures that there will be no oil leakage when the unit is running. At the same time, the tooling has a novel structure and is easy to disassemble, assemble and maintain.
[0013] 2. The sealing tool uses the bearing box cover 1 to fix the bearing box. By tightening the fastener 2, the temperature measuring line is led out from the inner hole of the bearing box cover 1, and the temperature measuring line passes through the threaded pipe joint 3, the plug 4 and the tightening nut cover 5, squeezes the plug 4 and plugs the hole through the plug 4 and fills it, and tightens the tightening nut cover 5 and the threaded pipe joint 3 to achieve sealing.
[0014] 3. This application is easy to operate, practical and cost-saving. The sealing tool can be used to seal the guide groove of the bearing box, which can not only avoid lubricating oil leakage, but also facilitate on-site maintenance. At the same time, the gland structure is adopted to achieve universal design and can be promoted for use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is the main view of the overall structure of this application.
[0016] Figure 2 yes Figure 1 Top view of the .
[0017] Figure 3 It is the front view of the bearing box cover 1.
[0018] Figure 4 It is the front view of threaded pipe joint 3.
[0019] Figure 5 It is a front view of the compression nut cover 5. DETAILED DESCRIPTION
[0020] Specific implementation method 1: Combination Figure 1-Figure 5 The present embodiment is described. A tool for sealing a steam turbine bearing box according to the present embodiment is characterized in that it comprises a bearing box cover 1, two threaded pipe joints 3, two plugs 4, two clamping nut covers 5 and a plurality of tightening pieces 2; the bearing box cover 1 is a plate body, the bearing box cover 1 is covered on the bearing box, and the bearing box cover 1 is installed on the bearing box through a plurality of tightening pieces 2, one end of the two threaded pipe joints 3 is threadedly connected and installed on the bearing box cover 1, the other end of the threaded pipe joint 3 is filled with a plug 4, and the clamping nut cover 5 is threadedly installed on the other end of the threaded pipe joint 3, and a temperature measuring line is arranged through the inner hole of the threaded pipe joint 3, the plug 4 and the clamping nut cover 5.
[0021] Specific implementation method 2: Combination Figure 1-Figure 3 This embodiment is described. In this embodiment, a steam turbine bearing box sealing tool is provided. The fastener 2 is a hexagonal bolt. A plurality of hexagonal bolts are arranged on the bearing box gland 1. The bearing box gland 1 is fixedly mounted on the bearing box by the plurality of hexagonal bolts. The other components and connection relationships are the same as those of the first embodiment.
[0022] Specific implementation method three: Combination Figure 1-Figure 3This embodiment is described as a tool for sealing a steam turbine bearing box. The plug 4 is compacted and arranged on the other end of the threaded pipe joint 3. The other components and connection relationships are the same as those of the first embodiment.
[0023] Specific implementation method four: Combination Figure 1-Figure 3 This embodiment is described as a tool for sealing a steam turbine bearing box, wherein the plate body is a rectangular plate body, and the other components and connection relationships are the same as those of the first embodiment.
[0024] Specific implementation method five: Combination Figure 1 and Figure 4 This embodiment is described as follows. In this embodiment, a steam turbine bearing box sealing tool is provided, and a hexagonal body is processed in the middle of the threaded pipe joint 3. Other components and connection relationships are the same as those of the first embodiment.
[0025] Specific implementation method six: Combination Figure 1-Figure 2 This embodiment is described as a steam turbine bearing box sealing tool. The number of the fasteners 2 is eight, two fasteners 2 are arranged side by side, and the eight fasteners 2 are symmetrically arranged on both sides of the fasteners 2. Other components and connection relationships are the same as those of the first embodiment.
[0026] The present invention has been disclosed as above with preferred implementation cases, but it is not used to limit the present invention. Any technician familiar with the profession can make slight changes or modifications to equivalent implementation cases with equivalent changes by using the above-disclosed structures and technical contents without departing from the scope of the technical solution of the present invention, which still fall within the scope of the technical solution of the present invention.
Claims
1. A tool for sealing a steam turbine bearing box, characterized in that: The invention comprises a bearing box gland (1), two threaded pipe joints (3), two plugs (4), two compression nut covers (5) and a plurality of tightening members (2); the bearing box gland (1) is a plate body, the bearing box gland (1) is arranged on the bearing box, and the bearing box gland (1) is installed on the bearing box through a plurality of tightening members (2); one end of the two threaded pipe joints (3) is threadedly connected and installed on the bearing box gland (1); the other end of the threaded pipe joint (3) is filled with a plug (4); the compression nut cover (5) is threadedly connected and installed on the other end of the threaded pipe joint (3); and a temperature measuring line is arranged through the inner hole of the threaded pipe joint (3), the plug (4) and the compression nut cover (5).
2. The tooling for sealing a steam turbine bearing box according to claim 1, characterized in that: The fastener (2) is a hexagonal bolt, and a plurality of hexagonal bolts are arranged on the bearing box pressure cover (1). The bearing box pressure cover (1) is fixedly mounted on the bearing box by means of the plurality of hexagonal bolts.
3. The tooling for sealing a steam turbine bearing box according to claim 1, characterized in that: The plug (4) is compacted and arranged on the other end of the threaded pipe joint (3).
4. The tooling for sealing a steam turbine bearing box according to claim 1, characterized in that: The plate body is a rectangular plate body.
5. The tooling for sealing a steam turbine bearing box according to claim 1, characterized in that: A hexagonal body is processed in the middle of the threaded pipe joint (3).
6. The tooling for sealing a steam turbine bearing box according to claim 1, characterized in that: The number of the tightening members (2) is eight, two of the tightening members (2) are arranged side by side, and the eight tightening members (2) are symmetrically arranged on both sides of the tightening member (2).