Elastic trough gasket

Abstract

The utility model discloses an elastic trough gasket which comprises a metal anti-corrosion skin, a trough layer is arranged on one side of the metal anti-corrosion skin, an elastic layer is arranged on the side, away from the metal anti-corrosion skin, of the trough layer, and a metal core plate is arranged on the side, away from the trough layer, of the elastic layer. Compared with the prior art, the elastic trough gasket has the advantage of excellent performance. When pressed, the trough layer elastically deforms to fill the gap, multiple sealing points are formed, the elastic layer rebounds to ensure tight attachment and reliable sealing, and safety can also be guaranteed under high pressure. The trough layer and the elastic layer cooperatively buffer, absorb and disperse energy, reduce noise, reduce abrasion and prolong the service life of equipment. The metal anti-corrosion skin resists corrosion and is stable in performance in a severe environment, the service life of the gasket is prolonged, and cost is reduced. The metal core plate provides structural support, adapts to various working conditions, is stable in shape and is widely applied to equipment sealing in a complex industrial environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to gasket technical field especially, it relates to a kind of elastic wave valley gasket with special structure and performance, it is applicable to the industrial equipment connecting part of higher requirement to sealing, buffering and corrosion resistance. BACKGROUND

[0002] In modern industry, the pipeline connection, flange sealing and other parts of various equipment need to use gasket to ensure sealing performance, prevent medium leakage. However, the traditional gasket faces many challenges in practical application. In high temperature, high pressure and corrosive environment, ordinary gasket is prone to aging, deformation, leading to sealing failure, causing safety accidents and environmental pollution. At the same time, with the improvement of industrial equipment operation precision, higher requirements are put forward for the buffering performance of gasket to reduce vibration and impact of equipment in operation process, and protect equipment parts. For example, in chemical production, the corrosive medium and high temperature and high pressure fluid transported in the pipeline have very high requirements for the corrosion resistance and sealing performance of gasket; in the field of precision machinery manufacturing, the slight vibration of equipment during operation may also affect product quality, and the gasket needs to have good buffering performance. Therefore, it is of great practical significance to develop an elastic wave valley gasket with excellent comprehensive performance. SUMMARY

[0003] The utility model aims at providing an elastic wave valley gasket, solving the problem of insufficient performance of traditional gasket in sealing, buffering, corrosion resistance and other aspects, realizing long-term stable operation of gasket under complex working conditions, improving the sealing reliability, operation stability and service life of equipment, and reducing maintenance cost.

[0004] To solve the above technical problems, the utility model provides a technical scheme: an elastic wave valley gasket, comprising a metal corrosion-resistant skin, the metal corrosion-resistant skin is provided with a wave valley layer on one side, the wave valley layer is provided with an elastic layer on the side away from the metal corrosion-resistant skin, and the elastic layer is provided with a metal core plate on the side away from the wave valley layer.

[0005] As an improvement, the metal corrosion-resistant skin, the wave valley layer and the elastic layer are distributed correspondingly along the center line of the metal core plate.

[0006] As an improvement, the wave valley layers on both sides of the metal core plate are in the same direction.

[0007] The utility model has the advantages compared with prior art: excellent sealing performance

[0008] When the gasket is under pressure, the valley layer 2 will elastically deform to fill the tiny gaps between the sealing surfaces. The valley shape of the valley layer 2 can form multiple sealing points, increasing the sealing area and improving the sealing reliability. At the same time, the elastic layer 3 can always keep the gasket tightly attached to the sealing surface when the pressure changes, effectively preventing medium leakage. In high-pressure pipeline connections, this elastic valley gasket can withstand higher pressure, ensuring the sealing safety of the pipeline system.

[0009] Excellent cushioning performance

[0010] The valley layer 2 and the elastic layer 3 work together to provide good cushioning effect for the equipment. During the operation of the equipment, when subjected to vibration and impact, the elastic deformation of the valley layer 2 and the compression and rebound of the elastic layer 3 can absorb and disperse energy, reducing the impact of vibration and impact on equipment components, protecting the equipment from damage. For example, using this gasket at the connection part of mechanical equipment can reduce noise and wear during equipment operation, prolonging the service life of the equipment.

[0011] Good corrosion resistance

[0012] The metal corrosion-resistant skin 1 serves as the outer protection of the gasket, effectively resisting the erosion of external corrosive media. Even in harsh corrosive environments, such as acidic or alkaline media environments in chemical production, the metal corrosion-resistant skin 1 can remain stable for a long time, preventing corrosive media from penetrating into the interior of the gasket, ensuring that the overall performance of the gasket is not affected, prolonging the service life of the gasket, and reducing equipment maintenance costs.

[0013] Stable structural performance

[0014] The metal core plate 4 provides solid structural support for the gasket, ensuring the shape stability of the gasket under different working conditions. Whether it is high temperature thermal expansion and contraction or pressure changes, the metal core plate 4 can maintain the structural integrity of the gasket, making it less prone to deformation, cracking and other problems. This stable structural performance enables the elastic valley gasket to adapt to complex industrial environments and is widely used in equipment sealing under various high-temperature, high-pressure, corrosive and vibration-impact conditions. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of an elastic valley gasket.

[0016] Figure 2 is a schematic diagram of the use state of an elastic valley gasket.

[0017] As shown in the figure: 1, metal corrosion-resistant skin, 2, valley layer, 3, elastic layer, 4, metal core plate. DETAILED DESCRIPTION

[0018] The utility model makes further detailed description in combination with the drawings below.

[0019] The utility model discloses in the specific implementation, the whole structure

[0020] The utility model discloses a elastic wave valley gasket, including metal anticorrosive skin 1, wave valley layer 2, elastic layer 3 and metal core plate 4. The metal anticorrosive skin 1 one side sets up wave valley layer 2, and the wave valley layer 2 far away from the metal anticorrosive skin 1 one side is elastic layer 3, and the elastic layer 3 far away from the wave valley layer 2 one side is metal core plate 4. The metal anticorrosive skin 1, wave valley layer 2 and elastic layer 3 along the metal core plate 4 center line corresponding distribution, ensure that gasket can coordinate work when each layer is under stress, and evenly share the pressure.

[0021] Key component characteristics

[0022] The metal anticorrosive skin 1 is made of corrosion-resistant metal material, such as stainless steel, titanium alloy, etc. The wave valley layer 2 is made of material with certain flexibility and elasticity, such as rubber, silicone, etc. The elastic layer 3 is also made of high-elasticity material, such as polyurethane foam, rubber sponge, etc. The metal core plate 4 is made of high-strength metal material, such as carbon steel, alloy steel, etc.

[0023] The utility model discloses a elastic wave valley gasket, including metal anticorrosive skin 1, wave valley layer 2, elastic layer 3 and metal core plate 4.

[0024] First, according to the design requirement, the metal core plate 4 is made of suitable metal material, and is precisely processed to ensure the size precision and surface quality. Then, the wave valley layer 2 is prepared on both sides of the metal core plate 4. The wave valley layer 2 is prepared as follows: the rubber or silicone material is heated and melted, and then is injected into a specially-made mold. The mold shape is designed according to the required wave valley shape. After cooling and forming, the wave valley layer 2 is obtained. Next, the elastic layer 3 is pasted or sprayed on the side of the wave valley layer 2 away from the metal core plate 4. The material of the elastic layer 3 can be polyurethane foam or rubber sponge, which is tightly combined with the wave valley layer 2 through the gluing or spraying process. Finally, the metal anticorrosive skin 1 is covered on the side of the wave valley layer 2 close to the metal core plate 4. The metal anticorrosive skin 1 can be fixedly connected with the wave valley layer 2 and the metal core plate 4 through welding, riveting or bonding, to ensure the firm and reliable connection between the layers.

[0025] Seal performance test

[0026] The prepared elastic wave valley gasket is installed in a specially designed seal performance test device to simulate the pressure and medium environment under actual working conditions. In the test device, a certain pressure of gas or liquid medium is applied on one side, and the pressure change and whether there is medium leakage are monitored on the other side through a pressure sensor and a leakage detection instrument. The experimental results show that the elastic wave valley gasket can maintain good sealing performance under different pressure conditions, and the leakage rate is much lower than that of traditional gaskets. For example, when subjected to a pressure of 10 MPa, the leakage rate of traditional gaskets can reach 10%, while the leakage rate of the elastic wave valley gasket can be controlled below 0.1%.

[0027] Buffer performance test

[0028] A vibration and impact test platform is built, and the elastic wave valley gasket is installed at the connection part of the test platform. Different frequency and amplitude of vibration and impact load are applied on the platform. The vibration acceleration and component strain of the equipment with and without gasket are monitored by acceleration sensors and strain gauges and other measuring instruments. The test results show that after using the elastic wave valley gasket, the vibration acceleration of the equipment is significantly reduced, and the component strain is reduced. For example, when subjected to a vibration impact with a frequency of 50 Hz and an amplitude of 5 mm, the vibration acceleration of the equipment without gasket is 10 m / s 2 , and the component strain reaches 0.5 mm, while after using the gasket, the vibration acceleration is reduced to 2 m / s 2 , and the component strain is reduced to 0.1 mm.

[0029] Corrosion resistance test

[0030] The elastic wave valley gasket is immersed in solutions simulating different corrosive media, such as 10% hydrochloric acid solution, 10% sodium hydroxide solution, and 5% copper sulfate solution, for 1000 hours. During the immersion process, the appearance changes of the gasket are observed regularly, such as whether there are corrosion spots, deformation, material shedding, etc., and the physical property changes of the gasket are detected. After long-term immersion test, it is found that the elastic wave valley gasket shows good corrosion resistance in various corrosive solutions, the metal anticorrosion skin 1 has no obvious corrosion signs, the valley layer 2 and the elastic layer 3 are structurally complete, and the sealing and buffering performance of the gasket remains basically unchanged. While the traditional gasket shows serious corrosion and performance degradation after immersion for a short time such as 200 hours under the same conditions.

[0031] Application of gasket in actual equipment

[0032] The elastic wave trough gasket is installed at the connecting part of the high-temperature and high-pressure pipeline in chemical production, and the sealing condition of the pipeline and the performance of the gasket are checked after a period of operation. The actual application results show that under the working conditions of high temperature such as 250 DEG C, high pressure such as 10 MPa and corrosive medium such as sulfuric acid vapor, the elastic wave trough gasket can operate stably for a long time, effectively prevent the medium leakage, and ensure the safe and reliable operation of the pipeline system. At the same time, due to the good buffering performance, the vibration of the pipeline in the operation process is reduced, and the risk of fatigue damage of the pipeline caused by vibration is reduced. The elastic wave trough gasket is used in the pump valve sealing part of the oil exploitation equipment, and good effect is also obtained, the sealing reliability and service life of the pump valve are improved, and the equipment maintenance frequency and cost are reduced. The elastic wave trough gasket of the utility model provides an efficient and reliable solution for the sealing, buffering and corrosion resistance of industrial equipment under complex working conditions through careful design and collaborative work of various components.

[0033] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features, and in the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified and limited.

[0034] In the utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, can be detachably connected or integrally connected, can be mechanically connected, can be electrically connected, can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature in the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature in the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature in the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0036] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] Although the embodiments of the present application have been shown and described above, it should be understood that the above-described embodiments are exemplary, and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application without departing from the principles and spirits of the present application.

Claims

1. An elastic corrugated gasket, comprising a metal anti-corrosion layer (1), characterized in that: The metal anti-corrosion skin (1) has a trough layer (2) on one side, an elastic layer (3) on the side of the trough layer (2) away from the metal anti-corrosion skin (1), and a metal core plate (4) on the side of the elastic layer (3) away from the trough layer (2).

2. The elastic trough gasket according to claim 1, characterized in that: The metal anti-corrosion skin (1), the trough layer (2) and the elastic layer (3) are distributed along the center line of the metal core plate (4).

3. The elastic trough gasket according to claim 1, characterized in that: The trough layers (2) on both sides of the metal core plate (4) are in the same direction.

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