Corrosion-resistant double-layer sealing composite structure

Abstract

The utility model discloses a corrosion-resistant double-layer sealing composite structure, which comprises an inner layer sheet, a plurality of outer layer sheets and a plurality of inner layer sheets, wherein a plurality of groups of bulges are arranged on the outer sides of the inner layer sheets; the inner side of the inner layer sheet is provided with protrusions, the inner side of the outer layer sheet is provided with multiple sets of grooves corresponding to the protrusions in a one-to-one mode, after the protrusions are matched with the grooves in a sealed mode, multiple sets of independent hollow spaces are formed between the inner layer sheet and the outer layer sheet, and each set of hollow space is internally provided with a liquid leakage sensor. The protrusions and the grooves are matched in a sealed mode to form a radial sealing layer, and annular sealing flanges are arranged on the edge of the inner layer piece and the edge of the outer layer piece. According to the corrosion-resistant double-layer sealing composite structure, the double layers of sheet bodies are matched to form the sealed space, the sensor is arranged in the sealed space, real-time monitoring and accurate positioning of liquid leakage are achieved, and the sealing reliability of the structure is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of storage device structures, and in particular to a corrosion-resistant double-layer sealed composite structure. Background Technology

[0002] In industries such as chemical engineering, marine engineering, food and pharmaceuticals, equipment sealing structures constantly face harsh conditions such as corrosive media erosion and high-pressure alternating loads, placing extremely high demands on sealing reliability and fault monitoring capabilities. Traditional single-layer sealing designs often rely on a single material or simple structure, making them prone to leakage due to material aging and wear of mating surfaces. Furthermore, they lack real-time monitoring and precise location capabilities for localized leaks, often only being detected after corrosive media have penetrated and caused systemic failures, resulting in significant safety hazards and high maintenance costs. In addition, existing sealing structures and leak detection systems are mostly designed independently, and monitoring components are susceptible to failure due to corrosive environments, making it difficult to meet the coordinated requirements of "corrosion prevention" and "leak detection." Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, the purpose of this utility model is to propose a corrosion-resistant double-layer sealing composite structure, which forms a sealed space by the cooperation of two layers and incorporates a sensor to achieve real-time monitoring and precise location of liquid leakage, thereby improving the reliability of the structural seal.

[0005] To achieve the above objectives, this utility model proposes a corrosion-resistant double-layer sealing composite structure, comprising: an inner layer sheet, the outer side of which is provided with multiple sets of protrusions; and an outer layer sheet, the inner side of which is provided with multiple sets of grooves corresponding one-to-one with the protrusions. After the protrusions and grooves are sealed together, multiple sets of independent hollow spaces are formed between the inner layer sheet and the outer layer sheet, and a liquid leakage sensor is provided inside each set of hollow spaces.

[0006] This utility model features a corrosion-resistant double-layer sealing composite structure. By combining two layers to form a sealed space and incorporating a built-in sensor, it enables real-time monitoring and precise location of liquid leaks, thereby improving the reliability of the structural seal.

[0007] In addition, the corrosion-resistant double-layer sealing composite structure proposed in this application may also have the following additional technical features:

[0008] Specifically, the sealing fit between the protrusion and the groove constitutes a radial sealing layer, and both the inner and outer layers are provided with annular sealing flanges at their edges.

[0009] Specifically, the protrusion is semi-cylindrical in shape, and the groove is a semi-cylindrical slot.

[0010] Specifically, the upper and lower edges of the semi-cylindrical groove are respectively provided with elastic locking surfaces. The elastic locking surfaces have elastic deformation capability along the radial direction of the semi-cylindrical groove, and their locking surfaces face the space inside the groove.

[0011] Specifically, each set of semi-cylindrical grooves has a through-hole welding groove on its groove wall.

[0012] Specifically, each hollow space is provided with a sensor mounting block, and the sensor mounting block has a mounting thread hole.

[0013] Specifically, the liquid leak sensor is an optical fiber sensor, which is adhered to the interior of the hollow space.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the corrosion-resistant double-layer sealing composite structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the inner layer sheet in the corrosion-resistant double-layer sealing composite structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the outer layer of the corrosion-resistant double-layer sealing composite structure of this utility model;

[0019] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of A in the middle;

[0020] Figure 5 This is a schematic diagram of the outer and inner layers of the corrosion-resistant double-layer sealed composite structure of this utility model.

[0021] As shown in the figure: 1. Outer layer; 2. Inner layer; 3. Protrusion; 4. Groove; 5. Sensor mounting block; 6. Flexible snap-fit ​​surface; 7. Welding groove; 8. Hollow space. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0023] The corrosion-resistant double-layer sealed composite structure of this utility model embodiment will be described below with reference to the accompanying drawings.

[0024] like Figures 1-5 As shown, the corrosion-resistant double-layer sealing composite structure of this utility model embodiment includes:

[0025] The inner layer 2 has multiple sets of protrusions 3 on its outer side.

[0026] The outer layer 1 has multiple sets of grooves 4 on its inner side that correspond one-to-one with the protrusions 3. After the protrusions 3 and the grooves 4 are sealed together, multiple sets of independent hollow spaces 8 are formed between the inner layer 2 and the outer layer 1. Each set of hollow spaces 8 is equipped with a liquid leakage sensor.

[0027] The external corrosive environment, such as acidic or alkaline liquids and moisture, is separated from the internal sensors and core structures, such as the inner layer, by using corrosion-resistant materials such as Hastelloy and titanium alloys in the double-layer sheet to resist external corrosion.

[0028] The liquid leakage sensor is connected to an external industrial control computer to monitor the situation inside the hollow space 8 in real time.

[0029] Each hollow space has a built-in liquid leakage sensor, such as a fiber optic sensor, which uses the changes in the properties of light in a liquid to detect leaks, achieving precise regional monitoring. When a leak occurs in a certain space, the corresponding sensor will alarm independently, avoiding misjudgment of the overall system and improving fault location efficiency.

[0030] In one embodiment of this utility model, the sealing fit between the protrusion 3 and the groove 4 constitutes a radial sealing layer, and the edges of the inner layer 2 and the outer layer 1 are provided with annular sealing flanges.

[0031] Specifically, the protrusion 3 and the groove 4 achieve a tight fit through shape adaptation, and their sealing fit forms a continuous sealing interface along the thickness direction of the sheet, constituting a radial sealing layer. This sealing layer utilizes the precise contact between the outer surface of the protrusion and the inner surface of the groove to prevent liquid from penetrating radially along the sheet.

[0032] In one embodiment of this utility model, the protrusion 3 is semi-cylindrical in shape, and the groove 4 is a semi-cylindrical groove.

[0033] Specifically, the protrusion 3 adopts a semi-cylindrical shape, and the groove 4 is a corresponding semi-cylindrical groove. Both have semi-circular cross-sections and axial directions are consistent. This structure allows the protrusion to be precisely embedded in the groove, forming an arc-shaped sealing fit, which enhances the radial sealing effect through curved surface contact.

[0034] In one embodiment of the present invention, the upper edge and lower edge of the semi-cylindrical groove are respectively provided with elastic locking surfaces 6. The elastic locking surfaces 6 have elastic deformation capability along the radial direction of the semi-cylindrical groove, and their locking surfaces face the space inside the groove.

[0035] Specifically, during assembly, the elastic snap-fit ​​surface 6 can clamp the semi-cylindrical protrusion 3 embedded in the groove through deformation. Relying on the elastic restoring force, a clamping effect is formed, which realizes the axial limiting and radial elastic clamping of the protrusion 3. While strengthening the fit and sealing of the two, it provides buffer fine-tuning space for structural connection and improves the stability and adaptability of component installation.

[0036] In one embodiment of this utility model, a welding groove 7 is provided through the groove wall of each group of semi-cylindrical grooves.

[0037] Specifically, the through-hole design of the welding groove 7 does not damage the sealing mating surface of the protrusion 3 and the groove 4. While ensuring the radial sealing effect, the welding process forms axial reinforcement, constructing a dual-function system of "sealing + fixing", which effectively improves the stability of the composite structure under harsh working conditions such as high pressure and vibration. It is especially suitable for industrial equipment sealing scenarios that need to withstand alternating loads or corrosive environments for a long time.

[0038] In one embodiment of this utility model, each hollow space 8 is provided with a sensor mounting block 5, and the sensor mounting block 5 has a mounting thread hole.

[0039] Specifically, sensor mounting block 5 is used to mount a liquid sensor.

[0040] In one embodiment of this utility model, the liquid leakage sensor is an optical fiber sensor, which is adhered inside the hollow space 8.

[0041] Specifically, the bonding method of the fiber optic sensor serves a dual purpose of fixing and sealing: on the one hand, the adhesive fills the gap between the sensor and the inner wall of the hollow space 8, preventing the sensor from shifting due to vibration and ensuring detection accuracy. On the other hand, the sealing layer formed by the adhesive works in conjunction with the radial and circumferential sealing system of the inner and outer layers to prevent liquid from seeping into the interface between the sensor and the sheet, ensuring stable operation of the fiber optic sensor in a corrosion-resistant environment. This design utilizes the anti-electromagnetic interference and high-precision characteristics of the fiber optic sensor, combined with the structural reinforcement of the bonding process, to achieve real-time monitoring of liquid leakage within the hollow space 8, making it suitable for sealing reliability testing in harsh environments such as chemical and marine applications.

[0042] In practical use, the corrosion-resistant double-layer sealing composite structure operates as follows: the outer layer 1 forms a circumferential seal with the edge of the inner layer 2 through an annular sealing flange; the semi-cylindrical protrusion 3 is embedded in the semi-cylindrical groove 4 to form a radial sealing layer; and the elastic snap-fit ​​surface 6 radially grips the protrusion 3 to enhance the sealing performance. The welding groove 7 reinforces the axial connection through welding. The fiber optic sensor inside the hollow space 8 is fixed to the threaded hole of the mounting block 5 with adhesive to monitor liquid leakage in real time. When liquid seeps in, the sensor triggers an alarm using changes in optical characteristics, achieving precise regional detection.

[0043] In summary, the corrosion-resistant double-layer sealing composite structure of this utility model, through the cooperation of the double-layer sheet to form a sealed space and the built-in sensor, realizes real-time monitoring and accurate positioning of liquid leakage, thereby improving the sealing reliability of the structure.

[0044] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A corrosion-resistant double-layer sealing composite structure, characterized in that, include: Inner layer sheet (2), the outer side of which is provided with multiple sets of protrusions (3); The outer layer (1) has multiple sets of grooves (4) on its inner side that correspond one-to-one with the protrusion (3). After the protrusion (3) and the groove (4) are sealed together, multiple sets of independent hollow spaces (8) are formed between the inner layer (2) and the outer layer (1). Each set of hollow spaces (8) is equipped with a liquid leakage sensor.

2. The corrosion-resistant double-layer sealing composite structure according to claim 1, characterized in that, The sealing fit between the protrusion (3) and the groove (4) forms a radial sealing layer, and the edges of the inner layer (2) and the outer layer (1) are provided with annular sealing flanges.

3. The corrosion-resistant double-layer sealing composite structure according to claim 1, characterized in that, The protrusion (3) is semi-cylindrical in shape, and the groove (4) is a semi-cylindrical groove.

4. The corrosion-resistant double-layer sealing composite structure according to claim 3, characterized in that, The upper and lower edges of the semi-cylindrical groove are respectively provided with elastic snap-fit ​​surfaces (6). The elastic snap-fit ​​surfaces (6) have elastic deformation capability along the radial direction of the semi-cylindrical groove, and their snap-fit ​​surfaces face the space inside the groove.

5. The corrosion-resistant double-layer sealing composite structure according to claim 3, characterized in that, Each set of semi-cylindrical grooves has a through-hole welding groove (7) on its groove wall.

6. The corrosion-resistant double-layer sealing composite structure according to claim 1, characterized in that, Each hollow space (8) is provided with a sensor mounting block (5), and the sensor mounting block (5) has a mounting thread hole.

7. The corrosion-resistant double-layer sealing composite structure according to claim 1, characterized in that, The liquid leakage sensor is an optical fiber sensor, which is adhered to the interior of the hollow space (8).

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