Tooth meshing type sealing structure for autoclave

Abstract

According to the tooth-meshed type sealing structure for the autoclave, the deformation opening acting force of the autoclave body and the inner edge of the autoclave end socket is resisted through the attaching and abutting acting force of the horizontal planes of the convex teeth of the inner meshing ring and the outer meshing ring, and sealing failure is avoided. Besides a sealing ring at the joint of the autoclave body and the autoclave seal head and a hoop at the outer edge, an inner meshing ring fixedly connected to the inner side wall at the port of the autoclave body and an outer meshing ring fixedly connected to the inner side wall at the port of the autoclave seal head are arranged; a plurality of first convex teeth which are uniformly spaced are integrally formed on the inner wall of the inner meshing ring; a plurality of second convex teeth which are uniformly spaced are integrally formed on the outer wall of the outer meshing ring; grooves allowing the second convex teeth to penetrate through are formed between the adjacent first convex teeth. After the autoclave body and the autoclave end socket are combined, the second convex teeth face the interior of the autoclave body and penetrate through the inner side of the inner meshing ring through the grooves, and gaps are formed between the horizontal planes of the second convex teeth and the horizontal planes of the first convex teeth.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-pressure and high-heat forming equipment sealing, and in particular relates to a tooth-engaging sealing structure for an autoclave. Background Art

[0002] In the process of vacuum drying and molding of carbon fiber, an autoclave is required. Existing autoclaves mostly use a quick-open structure, that is, a clamp is installed at the junction of the autoclave body and the autoclave head. The clamp is installed on the autoclave body. The autoclave head rotates to lock or unlock the clamp and complete the quick opening. An O-ring is used to seal the autoclave body and the autoclave head port. In actual use, the following problems were found in the sealing of the autoclave body and the autoclave head: Figure 1 As shown, due to the high pressure and high temperature in the working environment of the autoclave, the joint between the autoclave body and the autoclave head is compressed, which will cause the connecting flange to be pulled by pressure and deformed. At this time, the outer edges of the autoclave body and the autoclave head cannot be opened under the tightening action of the clamp, which causes the O-ring seal at the inner edge of the autoclave body and the autoclave head to open under pressure, resulting in seal failure. Utility Model Content

[0003] The utility model provides a toothed sealing structure for an autoclave, wherein an inner meshing ring and an outer meshing ring are arranged in an internal space, and the deformation and opening force of the autoclave body and the inner edge of the autoclave head are resisted by the abutting force of the convex teeth horizontal surfaces of the inner meshing ring and the outer meshing ring, thereby improving the sealing effect and avoiding sealing failure.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A toothed sealing structure for an autoclave, comprising a clamp which is locked at the outer edges of the autoclave body and the autoclave head after the autoclave body and the autoclave head are combined, and a sealing ring arranged at the combined interface of the autoclave body and the autoclave head, and also comprising an inner meshing ring fixedly connected to the inner side wall of the autoclave body port, and an outer meshing ring fixedly connected to the inner side wall of the autoclave head port; the inner meshing ring is hollow and has a plurality of first convex teeth uniformly spaced integrally formed on the inner wall; the outer meshing ring is hollow and has a plurality of second convex teeth uniformly spaced integrally formed on the outer wall; grooves for the second convex teeth to penetrate are formed between adjacent first convex teeth; after the autoclave body and the autoclave head are combined, the second convex teeth are penetrated to the inner side of the inner meshing ring through the groove toward the inside of the autoclave body, and there is a gap between the horizontal plane of the second convex teeth and the horizontal plane of the first convex teeth.

[0006] Furthermore, when the autoclave head is rotated and locked in place with the clamp, the horizontal planes of the second protruding teeth and the first protruding teeth are opposite, that is, their horizontal projections overlap.

[0007] Furthermore, the horizontal plane direction of the second convex tooth and the first convex tooth is perpendicular to the deformation and opening trend direction of the autoclave body and the inner edge of the autoclave head. When the autoclave body and the inner edge of the autoclave head are deformed and opened, the horizontal plane of the second convex tooth is in contact with the horizontal plane of the first convex tooth.

[0008] Furthermore, the gap between the second convex tooth horizontal plane and the first convex tooth horizontal plane is 2 mm.

[0009] The beneficial effects of the utility model include:

[0010] By setting an inner meshing ring and an outer meshing ring at the inner edge of the interface between the autoclave body and the autoclave head, the horizontal plane contact force between the convex teeth is used to effectively resist the deformation and opening force that may be generated by the autoclave body and the inner edge of the autoclave head under high pressure and high temperature environment, thereby improving the sealing effect and avoiding the problem of sealing failure. The convex tooth matching structure of the inner meshing ring and the outer meshing ring can maintain stability when the autoclave is working, and is not easily deformed or displaced due to pressure changes, thereby ensuring the reliability of the sealing structure. The inner meshing ring and the outer meshing ring are respectively fixedly connected to the inner side walls of the ports of the autoclave body and the autoclave head, which is easy to install. At the same time, due to the relatively simple structure, they can be quickly replaced or repaired in case of failure or maintenance. By improving the sealing effect, the equipment damage and maintenance costs caused by sealing failure are reduced, thereby extending the service life of the autoclave. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a cross-section of the existing structure;

[0012] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0013] Figure 3 yes Figure 2 A partial enlarged view of

[0014] Figure 4 is a cross-sectional view of the outer meshing ring;

[0015] Figure 5 It is a cross-sectional view of the inner meshing ring.

[0016] In the figure: 1, autoclave body; 2, autoclave head; 3, inner meshing ring; 4, outer meshing ring; 5, clamp; 31, first convex tooth; 32, groove; 41, second convex tooth. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0019] Example 1

[0020] A toothed sealing structure for an autoclave, comprising a clamp 5 which is locked at the outer edge of the autoclave body 1 and the autoclave head 2 after the autoclave body 1 and the autoclave head 2 are combined, and a sealing ring arranged at the combined interface of the autoclave body 1 and the autoclave head 2. This part is the prior art. After the autoclave head 2 is buckled on the port of the autoclave body 1, the autoclave head 2 is rotated to make it cooperate with the clamp 5 and locked in place; when opening, the autoclave head 2 is first rotated to unlock it from the clamp 5, and then the autoclave head 2 is opened.

[0021] In order to solve the problem of sealing failure caused by the pressure opening of the O-ring seal at the inner edge of the autoclave tank body 1 and the autoclave head 2, the inner meshing ring 3 is fixedly welded on the inner side wall at the port of the autoclave tank body 1, and the outer meshing ring 4 is fixedly welded on the inner side wall at the port of the autoclave head 2; Figure 4 The outer meshing ring 4 is hollow and has a plurality of second protruding teeth 41 formed integrally on the outer wall at uniform intervals; Figure 5 The inner meshing ring 3 is hollow and has a plurality of first convex teeth 31 integrally formed on the inner wall at uniform intervals, and a groove 32 for the second convex teeth 41 to penetrate is formed between adjacent first convex teeth 31; when the autoclave body 1 and the autoclave head 2 are buckled, the first convex teeth 31 and the second convex teeth 41 are staggered with each other, and the second convex teeth 41 are penetrated to the inner side of the inner meshing ring 3 through the groove 32 toward the inside of the autoclave body 1, and at this time, there is a 2mm gap between the horizontal plane of the second convex teeth 41 and the horizontal plane of the first convex teeth 31; when the autoclave head 2 is rotated to cooperate with the clamp 5 and locked in place, the second convex teeth 41 are rotated inside the first convex teeth 31 until the horizontal planes of the second convex teeth 41 and the first convex teeth 31 are opposite, that is, the horizontal projections of the two coincide with each other.

[0022] The horizontal plane direction of the second protruding teeth 41 relative to the first protruding teeth 31 is perpendicular to the deformation and opening trend direction of the autoclave, which can better resist deformation. When the autoclave body 1 and the inner edge of the autoclave head 2 are deformed and opened, the horizontal plane of the second protruding teeth 41 fits and abuts against the horizontal plane of the first protruding teeth 31, which can resist the opening of the inner edge. With the original clamp 5, the inner edge and outer edge of the autoclave body 1 and the autoclave head 2 are tightly sealed to avoid sealing failure.

[0023] When the equipment is running, while the autoclave head 2 rotates and is locked with the clamp 5, the outer meshing ring 4 simultaneously rotates until the second convex teeth 41 are opposite to the horizontal plane of the first convex teeth 31. Since there is no contact between the second convex teeth 41 and the first convex teeth 31, a 2mm gap is set, so the rotation will not be hindered. When the autoclave seal is deformed by force, the second convex teeth 41 fit with the horizontal plane of the first convex teeth 31 to generate resistance, limit further deformation, and prevent the seal from failing. The outer meshing ring 4 and the inner meshing ring 3 are made of integral forged material, with a simple and compact structure, and 4 teeth or less can be used to achieve the sealing effect;

[0024] Since most of this type of equipment has a direct connection between the head and the flange, there is an inherent risk of leakage regardless of the pressure. The structure added in this embodiment effectively limits the occurrence of leakage, and the feedback from actual production measurements is effective. Therefore, in addition to the autoclave of the molding equipment in the carbon fiber vacuum drying molding process, it can also be applied to other parts where the head is directly connected to the flange, with double locking inside and outside to achieve a more stable sealing effect.

[0025] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A toothed sealing structure for an autoclave, comprising a clamp (5) which is locked at the outer edges of the autoclave body (1) and the autoclave head (2) after the autoclave body (1) and the autoclave head (2) are combined, and a sealing ring arranged at the combined interface of the autoclave body (1) and the autoclave head (2), characterized in that: The invention also comprises an inner meshing ring (3) fixedly connected to the inner side wall at the port of the autoclave body (1), and an outer meshing ring (4) fixedly connected to the inner side wall at the port of the autoclave head (2); the inner meshing ring (3) is hollow and has a plurality of first convex teeth (31) integrally formed at even intervals on its inner wall; the outer meshing ring (4) is hollow and has a plurality of second convex teeth (41) integrally formed at even intervals on its outer wall; grooves (32) for the second convex teeth (41) to pass through are formed between adjacent first convex teeth (31); after the autoclave body (1) and the autoclave head (2) are combined, the second convex teeth (41) are passed through the grooves (32) toward the inside of the autoclave body (1) to the inside of the inner meshing ring (3), and there is a gap between the horizontal plane of the second convex teeth (41) and the horizontal plane of the first convex teeth (31).

2. The gear-engaging sealing structure for an autoclave according to claim 1, characterized in that: When the autoclave head (2) is rotated and locked in place with the clamp (5), the horizontal planes of the second protruding teeth (41) and the first protruding teeth (31) are opposite, that is, their horizontal projections overlap.

3. The gear-engaging sealing structure for an autoclave according to claim 2, characterized in that: The horizontal plane direction of the second convex tooth (41) and the first convex tooth (31) is perpendicular to the deformation and opening trend direction of the inner edges of the autoclave tank body (1) and the autoclave head (2); when the inner edges of the autoclave tank body (1) and the autoclave head (2) are deformed and opened, the horizontal plane of the second convex tooth (41) is in contact with the horizontal plane of the first convex tooth (31).

4. A toothed sealing structure for an autoclave according to any one of claims 1 to 3, characterized in that: The gap between the horizontal plane of the second protruding tooth (41) and the horizontal plane of the first protruding tooth (31) is 2 mm.

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