End cover structure and ultrahigh pressure equipment adopting end cover
By designing a stepped end cap structure and using a two-layer boss seal, the problem of the end cap easily falling off under high pressure was solved, enhancing the safety and strength of the ultra-high pressure equipment.
Patent Information
- Application Number
- CN202423047922.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-09-11
- Filing Date
- 2024-12-11
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-11
AI Technical Summary
The end caps of existing ultra-high pressure cavity components are prone to fatigue and detachment under high pressure, leading to safety hazards, and the flange protrusions are not strong enough to resist the force.
The end cap is designed with a stepped structure and a two-layer boss design. The connection strength with the ultra-high pressure cavity is enhanced by two seals to prevent it from falling off.
It effectively prevents the end caps from falling off under high pressure, enhances the strength of both ends of the cavity, avoids parts from detaching, and improves safety.
Smart Images
Figure CN223622187U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of ultra-high voltage equipment, and in particular relates to an end cap structure and ultra-high voltage equipment using the end cap. Background Technology
[0002] The ultra-high pressure chamber assembly has end caps on both sides for sealing the ultra-high pressure chamber. For example... Figure 4 As shown, the existing end cap has a U-shaped structure. When the ultra-high pressure vessel is subjected to high pressure, the part of the cavity most prone to fatigue is the contact part of the cavity cap after closure. When a problem occurs, the fatigued part is prone to detach from both ends of the cavity under high pressure. The flange protrusion of the end cap is not strong enough to resist this force, making both ends of the cavity extremely dangerous. Utility Model Content
[0003] To address the problems existing in the prior art, this invention proposes an end cap structure and an ultra-high pressure device using the end cap. The end cap is designed in a stepped shape, and a secondary axial seal is achieved between the two-layer boss structure and the ultra-high pressure cavity assembly. At the same time, the strength of both ends of the cavity is increased to prevent the parts from falling off in the event of fatigue.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an end cap structure, including an end cap base, on which a first protrusion and a second protrusion are sequentially provided, the first protrusion and the second protrusion are coaxially arranged, the outer diameter of the first protrusion is smaller than the outer diameter of the second protrusion, and the height of the first protrusion is smaller than the height of the second protrusion.
[0005] Furthermore, the difference between the outer diameter of the second boss and the outer diameter of the first boss is less than 220 mm.
[0006] Furthermore, the end cap base, the first boss, and the second boss are integrally formed.
[0007] Another technical solution protected by this utility model: an ultra-high pressure device, including an ultra-high pressure cavity assembly, with the aforementioned end cap structure at both ends of the ultra-high pressure cavity assembly, a step that matches the end cap structure provided on the inner side of the cavity of the ultra-high pressure cavity assembly, and a sealing structure provided between the end cap assembly and the ultra-high pressure cavity assembly.
[0008] Compared with the prior art, the advantages of this invention are as follows: The end cap is designed in a stepped shape. After the end cap is sealed with the ultra-high pressure cavity, the inner surface of the end cap base presses against the outer surface of the ultra-high pressure cavity assembly, and the top surface of the second protrusion presses against the inner stepped surface of the ultra-high pressure cavity assembly. This structure effectively prevents fatigued parts of the ultra-high pressure cavity assembly from detaching from both ends of the cavity under high pressure. Attached Figure Description
[0009] The present invention will be further described below with reference to the accompanying drawings.
[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0011] Figure 2 The end cap and ultra-high pressure chamber assembly are then sealed.
[0012] Figure 3 The end cap and the ultra-high pressure cavity assembly are completely sealed.
[0013] Figure 4 The structure is based on the existing end cap.
[0014] In the figure, 1 is the end cap base, 2 is the first boss, 3 is the second boss, and 4 is the ultra-high pressure cavity assembly. Detailed Implementation
[0015] like Figures 1-3 As shown, an end cap structure includes an end cap base 1, on which a first boss 2 and a second boss 3 are integrally formed. The end cap base 1, the first boss 2, and the second boss 3 are generally stepped. The first boss 2 and the second boss 3 are coaxially arranged. The outer diameter φA of the first boss 2 is smaller than the outer diameter φB of the second boss 3, and the height b of the first boss 2 is smaller than the height a of the second boss 3. The difference between the outer diameter φB of the second boss 3 and the outer diameter φA of the first boss 2 is less than 220 mm.
[0016] Another technical solution protected by this utility model is: an ultra-high pressure device, including an ultra-high pressure cavity assembly 4. An ultra-high pressure cavity assembly 4 with openings at both ends includes at least an ultra-high pressure cavity and a water jacket on the outer end face of the ultra-high pressure cavity, with a water inlet provided on the water jacket. The aforementioned end cap structure is provided at both ends of the ultra-high pressure cavity assembly 4. The main function of the end caps is to open or close the cavity assembly.
[0017] Therefore, the inner side of the ultra-high pressure cavity assembly 4 is provided with a step that matches the end cap structure, and two sealing structures are provided between the end cap assembly and the ultra-high pressure cavity assembly.
[0018] When the stepped end cap moves into the ultra-high pressure cavity assembly 4, it will seal twice during the movement of the cavity cap. When the end cap moves, the large diameter of the step first contacts the water jacket on the outer end face of the ultra-high pressure cavity assembly 4. The first seal occurs when the end cap contacts the ultra-high pressure cavity assembly 4 / water jacket (note that the water inlet is not blocked). At this time, atmospheric pressure water can be filled into the container. After the end cap moves into place, the step of the end cap abuts against the ultra-high pressure cavity assembly 4, and an axial seal is provided between the end cap and the ultra-high pressure cavity assembly 4. The second seal is achieved by sealing the cavity assembly through the second protrusion 3.
[0019] In addition, when the ultra-high pressure cavity assembly fails due to fatigue, the stepped end caps can increase the strength at both ends of the cavity and prevent parts from falling off when fatigue problems occur.
[0020] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. An end cap structure, characterized in that: Includes end cap base (1), on which a first boss (2) and a second boss (3) are sequentially provided. The first boss (2) and the second boss (3) are coaxially arranged. The outer diameter of the first boss (2) is smaller than the outer diameter of the second boss (3), and the height of the first boss (2) is smaller than the height of the second boss (3).
2. The end cap structure according to claim 1, characterized in that: The difference between the outer diameter of the second boss (3) and the outer diameter of the first boss (2) is less than 220 mm.
3. The end cap structure according to claim 2, characterized in that: The end cap base (1), the first boss (2), and the second boss (3) are integrally formed.
4. An ultra-high pressure device, comprising an ultra-high pressure cavity assembly, characterized in that: Both ends of the ultra-high pressure cavity assembly (4) adopt the end cap structure described in any one of claims 1-3. The inner side of the cavity of the ultra-high pressure cavity assembly (4) is provided with a step that matches the end cap structure. A sealing structure is provided between the end cap structure and the ultra-high pressure cavity assembly (4).