Sealing assembly of turbine cooler partition plate
By using sealing components of counterhead rivets and graphite rings on the turbine cooler partition, the problem of loss of sealing function caused by high-speed rotation wear of the partition is solved, and good sealing and wear resistance are achieved, which extends the use of the product. life.
Patent Information
- Application Number
- CN202421140446.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-04-24
- Filing Date
- 2024-05-23
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-23
AI Technical Summary
When the turbine cooler partition rotates at high speed, it is easy to wear due to contact with the bushing, lose its sealing function, and affect the maintenance and use of the product.
The sealing assembly is adopted including partitions, press plates and countersunk rivets. The countersunk rivet head sinks into the partitions and the tail runs through the press plate. The pier head is located in the grooves of the press plate to ensure that the press plate is pressed tightly and combines the graphite ring with the bushing. , provides excellent sealing and wear resistance.
It effectively avoids interference between the partition and other parts, ensures the flatness of the partition and the pressure plate surface, simplifies the installation process, and maintains good sealing performance and service life under high temperature environments.
Smart Images
Figure CN222501821U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of turbine coolers, in particular to a sealing component of a turbine cooler partition. Background Art
[0002] As an important part of the turbine cooler, the partition separates the power turbine impeller and the refrigeration turbine impeller, and plays the role of connecting and fixing the nozzle ring and the casing; the bushing in the turbine cooler is often made of stainless steel, and the partition is made of rust-proof aluminum. After assembly, the partition is in direct contact with the bushing on the shaft. When the rotor rotates at high speed, the bushing may cause serious wear to the inner hole of the partition, lose the sealing function, and affect the maintenance and use of the product.
[0003] Therefore, it is necessary to study a sealing assembly for a turbine cooler partition that avoids interference with other parts of the turbine. Summary of the invention
[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned background technology and provide a sealing component for a turbine cooler partition.
[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a sealing assembly for a turbine cooler partition, characterized in that it includes a partition, a pressure plate and a countersunk rivet, the pressure plate is provided with a groove, the tail of the countersunk rivet is provided with a pier head, the head of the countersunk rivet is sunk into the partition, and the tail passes through the pressure plate, the pier head is located in the groove, and the pier head presses the pressure plate.
[0006] In the above technical solution, a graphite ring is also included, which includes a graphite ring body and a connecting ring located outside the graphite ring body. The tail of the countersunk rivet passes through the connecting ring and the pressure plate in sequence, and the graphite ring body cooperates with the bushing.
[0007] In the above technical solution, the countersunk rivet is a 90-degree countersunk rivet.
[0008] Compared with the prior art, the utility model has the following advantages.
[0009] 1) The head of the countersunk rivet of the utility model is completely sunk into the partition, and the upsetting head at the tail presses the pressing plate. The upsetting head is also completely sunk into the groove on the pressing plate, which ensures the flatness of the surface of the partition and the pressing plate, and is easy to install, while also avoiding interference with other parts.
[0010] 2) The graphite ring of the utility model cooperates with the bushing and has excellent sealing, corrosion resistance and wear resistance in a high temperature environment and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the structure of the utility model.
[0012] Figure 2 for Figure 1 Enlarged view of point A in the middle.
[0013] Among them, 1-partition plate, 2-pressing plate, 21-groove, 3-countersunk rivet, 31-pier head, 4-graphite ring, 41-graphite ring body, 42-connecting ring. DETAILED DESCRIPTION
[0014] The following is a detailed description of the implementation of the utility model in conjunction with the accompanying drawings, but they do not constitute a limitation of the utility model and are only used as examples. At the same time, the advantages of the utility model will become clearer and easier to understand through the description.
[0015] Referring to the attached drawings, it can be seen that a sealing assembly of a turbine cooler partition is characterized in that it includes a partition 1, a pressure plate 2 and a countersunk rivet 3, the pressure plate 2 is provided with a groove 21, and the tail of the countersunk rivet 3 is provided with a pier head 31, the head of the countersunk rivet 3 is sunk into the partition 1, and the tail passes through the pressure plate 2, the pier head 31 is located in the groove 21, and the pier head 31 presses the pressure plate 2.
[0016] It also includes a graphite ring 4, which includes a graphite ring body 41 and a connecting ring 42 located outside the graphite ring body 41, the tail of the countersunk rivet 3 passes through the connecting ring 42 and the pressure plate 2 in sequence, and the graphite ring body 41 cooperates with the bushing.
[0017] The countersunk rivet 3 is a 90-degree countersunk rivet.
[0018] In actual use, the graphite ring 4 cooperates with the bushing. The graphite ring 4 has excellent high temperature resistance and elasticity. When the rotor rotates at high speed and generates a lot of heat, it still maintains good sealing performance. Compared with direct contact with an aluminum partition, the graphite ring 4 has better wear resistance, which is conducive to ensuring the service life of the product.
[0019] The partition 1 is connected and fixed by a 90° countersunk rivet 3. The partition 1 is in contact with the graphite ring 4. The head of the countersunk rivet 3 is completely sunk into the partition 1. The upsetting head 31 at the tail presses the pressing plate 2. The upsetting head 31 is also completely sunk into the groove 21 on the pressing plate 2, ensuring the smoothness of the surface of the partition and the pressing plate, easy installation, and avoiding interference with other parts.
[0020] Other parts not described belong to the prior art.
Claims
1. A sealing assembly for a turbine cooler partition, characterized in that: The invention comprises a partition (1), a pressing plate (2) and a countersunk rivet (3); the pressing plate (2) is provided with a groove (21); the tail of the countersunk rivet (3) is provided with a pier head (31); the head of the countersunk rivet (3) is sunk into the partition (1) and the tail thereof penetrates the pressing plate (2); the pier head (31) is located in the groove (21), and the pier head (31) presses the pressing plate (2) tightly.
2. A sealing assembly for a turbine cooler baffle according to claim 1, characterized in that: It also includes a graphite ring (4), the graphite ring (4) including a graphite ring body (41) and a connecting ring (42) located outside the graphite ring body (41), the tail of the countersunk rivet (3) passes through the connecting ring (42) and the pressure plate (2) in sequence, and the graphite ring body (41) cooperates with the bushing.
3. The sealing assembly of a turbine cooler partition according to claim 1, characterized in that: The countersunk rivet (3) is a 90-degree countersunk rivet.