Elastic trough gasket

Abstract

The elastic trough gasket 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 invention relates to the technical field of gaskets, and in particular to an elastic trough gasket with special structure and performance, which is suitable for connecting parts of industrial equipment with high requirements on sealing, buffering and corrosion resistance. Background Art

[0002] In modern industry, gaskets are needed in pipeline connections, flange seals and other parts of various equipment to ensure sealing performance and prevent medium leakage. However, traditional gaskets face many challenges in practical applications. Under high temperature, high pressure and corrosive environment, ordinary gaskets are prone to aging and deformation, resulting in sealing failure, causing safety accidents and environmental pollution. At the same time, with the improvement of the operating accuracy of industrial equipment, higher requirements are also placed on the buffering performance of gaskets to reduce the vibration and impact of equipment during operation and protect equipment components. For example, in chemical production, the corrosive media and high-temperature and high-pressure fluids transported in pipelines have extremely high requirements on the corrosion resistance and sealing performance of gaskets; in the field of precision machinery manufacturing, the slight vibration of equipment during operation may also affect product quality, requiring gaskets to have good buffering performance. Therefore, it is of great practical significance to develop an elastic trough gasket with excellent comprehensive performance. Summary of the invention

[0003] The present invention aims to provide an elastic trough gasket to solve the problems of insufficient performance of traditional gaskets in sealing, buffering, corrosion resistance, etc., to achieve long-term stable operation of the gasket under complex working conditions, to improve the sealing reliability, operating stability and service life of the equipment, and to reduce maintenance costs.

[0004] To solve the above technical problems, the technical solution provided by the present invention is: an elastic trough gasket, comprising a metal anti-corrosion skin, a trough layer is provided on one side of the metal anti-corrosion skin, an elastic layer is provided on the side of the trough layer away from the metal anti-corrosion skin, and a metal core plate is provided on the side of the elastic layer away from the trough layer.

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

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

[0007] The advantages of the present invention compared with the prior art are: excellent sealing performance

[0008] When the gasket is subjected to pressure, the trough layer 2 will undergo elastic deformation to fill the tiny gap between the sealing surfaces. The trough shape of the trough layer 2 can form multiple sealing points, increase the sealing area, and improve the sealing reliability. At the same time, the rebound effect of the elastic layer 3 can keep the gasket in close contact with the sealing surface when the pressure changes, effectively preventing the leakage of the medium. In the high-pressure pipeline connection, the elastic trough gasket can withstand higher pressure and ensure the sealing safety of the pipeline system.

[0009] Excellent cushioning performance

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

[0011] Good corrosion resistance

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

[0013] Stable structural performance

[0014] The metal core plate 4 provides a solid structural support for the gasket, ensuring the shape stability of the gasket under different working conditions. Whether it is thermal expansion and contraction at high temperature or under pressure changes, the metal core plate 4 can maintain the structural integrity of the gasket, making it less likely to deform or crack. This stable structural performance enables the elastic trough gasket to adapt to complex and changeable industrial environments and is widely used in equipment sealing under various high temperature, high pressure, corrosive and vibration shock conditions. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 The utility model is a schematic diagram of the use status of an elastic trough gasket.

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

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0019] When the present invention is implemented, the overall structure

[0020] The elastic trough gasket includes a metal anticorrosion skin 1, a trough layer 2, an elastic layer 3 and a metal core plate 4. The trough layer 2 is arranged on one side of the metal anticorrosion skin 1, the side of the trough layer 2 away from the metal anticorrosion skin 1 is the elastic layer 3, and the side of the elastic layer 3 away from the trough layer 2 is the metal core plate 4. The metal anticorrosion skin 1, the trough layer 2 and the elastic layer 3 are correspondingly distributed along the center line of the metal core plate 4 to ensure that each layer of the gasket can work together and evenly share the pressure when subjected to force. The trough layers 2 on both sides of the metal core plate 4 are in the same direction. This structural design helps the trough layer 2 to deform in a predetermined direction when the gasket is subjected to pressure, thereby enhancing the cushioning performance and sealing effect of the gasket.

[0021] Key Component Features

[0022] The metal anticorrosive skin 1 is made of corrosion-resistant metal materials, such as stainless steel, titanium alloy, etc., and its surface can be specially treated, such as passivation, coating, etc., to further improve the corrosion resistance and effectively prevent the external corrosive medium from eroding the internal structure of the gasket. The trough layer 2 is made of materials with certain flexibility and elasticity, such as rubber, silicone, etc., and its trough shape can be in various forms such as sine wave and sawtooth wave. The depth, width and spacing of the trough are designed according to the actual application requirements to achieve the best buffering and sealing effect. The elastic layer 3 is also made of highly elastic materials, such as polyurethane foam, rubber sponge, etc., and its main function is to provide additional buffering and rebound capabilities, and absorb and disperse vibration and impact energy during the operation of the equipment. The metal core plate 4 is made of high-strength metal materials, such as carbon steel, alloy steel, etc., to provide stable structural support for the gasket, ensuring that the gasket will not be excessively deformed or damaged when under pressure.

[0023] Working principle of the invention: gasket preparation

[0024] First, according to the design requirements, a suitable metal material is selected to make the metal core plate 4, and precision machining is performed to ensure its dimensional accuracy and surface quality. Then, the trough layer 2 is prepared on both sides of the metal core plate 4. The preparation method of the trough layer 2 is as follows: After heating and melting materials such as rubber or silicone, it is injected into a special mold. The shape of the mold is designed according to the required trough shape, and the trough layer 2 is obtained after cooling and molding. Next, the elastic layer 3 is pasted or sprayed on the side of the trough layer 2 away from the metal core plate 4. The material of the elastic layer 3 can be selected from polyurethane foam or rubber sponge, and it is tightly combined with the trough layer 2 by glue pasting or spraying. Finally, the metal anti-corrosion skin 1 is covered on the side of the trough layer 2 close to the metal core plate 4. The metal anti-corrosion skin 1 can be fixedly connected to the trough layer 2 and the metal core plate 4 by welding, riveting or bonding to ensure that the connection between the layers is firm and reliable.

[0025] Gasket performance test Sealing performance

[0026] The prepared elastic trough gasket is installed in a specially designed sealing performance test device to simulate the pressure and medium environment under actual working conditions. In the test device, a gas or liquid medium with a certain pressure 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 trough 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 10MPa, the leakage rate of traditional gaskets may reach 10%, while the leakage rate of this elastic trough gasket can be controlled below 0.1%.

[0027] Gasket performance test Buffer performance

[0028] A vibration and impact test platform was built, and the elastic trough gasket was installed at the connection part of the test platform. Vibration and impact loads of different frequencies and amplitudes were applied to the platform. The vibration acceleration and component strain of the equipment with and without gaskets were monitored by measuring instruments such as accelerometers and strain gauges. The test results show that after using this elastic trough gasket, the vibration acceleration of the equipment is significantly reduced and the component strain is reduced. For example, when subjected to a vibration shock with a frequency of 50Hz and an amplitude of 5mm, the vibration acceleration of the equipment without a gasket is 10m / s 2 , the component strain reached 0.5mm, and after using this gasket, the vibration acceleration was reduced to 2m / s2 and the component strain was reduced to 0.1mm.

[0029] Gasket performance test Corrosion resistance

[0030] The elastic trough gasket was 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 were observed regularly, such as whether there were corrosion spots, deformation, material shedding, etc., and the physical property changes of the gasket were detected. After a long period of immersion test, it was found that the elastic trough gasket showed good corrosion resistance in various corrosive solutions, the metal anti-corrosion skin 1 showed no obvious signs of corrosion, the trough layer 2 and the elastic layer 3 had intact structures, and the sealing and buffering properties of the gasket remained basically unchanged. However, after being immersed for a shorter time, such as 200 hours under the same conditions, the traditional gasket showed serious corrosion and performance degradation.

[0031] Application of gaskets in actual equipment

[0032] The elastic trough gasket is installed at the high-temperature and high-pressure pipeline connection parts in chemical production, and the sealing condition of the pipeline and the performance of the gasket are checked after running for a period of time. The actual application results show that under the conditions of high temperature such as 250°C, high pressure such as 10MPa and the presence of corrosive media such as sulfuric acid vapor, the elastic trough gasket can operate stably for a long time, effectively prevent medium leakage, and ensure the safe and reliable operation of the pipeline system. At the same time, due to its good buffering performance, the vibration of the pipeline during operation is reduced, and the risk of pipeline fatigue damage caused by vibration is reduced. The use of the elastic trough gasket in the sealing part of the pump and valve in the oil extraction equipment has also achieved good results, improving the sealing reliability and service life of the pump and valve, and reducing the number and cost of equipment maintenance. The elastic trough gasket of the present invention provides an efficient and reliable solution for the sealing, buffering and corrosion resistance of industrial equipment under complex working conditions through the careful design and coordinated work of various components.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features, and in the description of the present invention, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0037] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

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