CN216888223U - Full liquid-receiving large compensation seal - Google Patents

Abstract

The utility model discloses a full-liquid-receiving large compensation seal, which comprises a bag sleeve, wherein the bag sleeve is of a multi-layer structure and is divided into a support plate, a seal film, an elastic plate, a filling plate and a sliding shoe plate from outside to inside, seal sponge is filled in the bag sleeve, the bag sleeve is pocket-shaped, an opening of the bag sleeve is provided with an anti-turnover hook, the anti-turnover hook is fixed on an edge plate, the edge plate is arranged on one side of the bag sleeve, and a tank wall is arranged on one side of the bag sleeve away from the edge plate. Compared with the prior art, the utility model has the advantages that: the annular space who mainly uses floating plate and jar wall is sealed, can compensate the offset of floating plate operation in-process, and better suppresses volatilizing of oil in the source, and sealing performance is better, can realize that oil gas is zero to volatilize, and it is also very convenient to operate, has fine spreading value, has good market prospect.

Description

Full liquid-receiving large compensation seal

Technical Field

The utility model relates to the field of floating disc sealing of an inner floating roof storage tank, in particular to full-liquid-receiving large compensation sealing.

Background

When storing petrochemical products, the products are volatile and can be easily volatilized into the air, thereby polluting the air and the environment. The floating disc technology is invented, the oil gas is raised or lowered along with the height of a stored liquid, the volatilization of the oil gas is reduced, but because the perpendicularity of the tank wall of the storage tank has deviation, an annular space exists between the floating disc and the tank wall, peripheral sealing is needed, the oil is prevented from overflowing from the annular space and volatilizing into the air, meanwhile, the whole rising and falling process of the floating disc is ensured to be free of obstruction, certain energy compensation is achieved, and the phenomenon that a floating disc chuck is caused by the perpendicularity deviation of the tank wall is avoided.

High-efficiency sealing modes such as a liquid mosaic type, a mechanical shoe shape, a double-seal type and the like are adopted between a floating disc and a tank wall of 5.2.3 inner floating roof tanks in the regulation of GB31571-2015 petrochemical industry pollutant discharge standard; the floating disc and the tank wall of the external floating roof tank are sealed in a double-sealing mode, and primary sealing is in a liquid embedded type, mechanical shoe-shaped and other efficient sealing modes. Therefore, the double-seal type sealing is widely applied to both the inner floating roof tank and the outer floating roof tank.

At present, the storage tank adopting double-seal type sealing is generally sealed by adopting full compensation sealing or bag type sealing.

The full compensation seal mainly comprises a support plate, a seal film, an elastic plate, a packing plate, a sliding track plate and the like. The floating plates are fixed at the edge of the floating plate and are sequentially arranged to form a circumference splicing mode, and the sliding seal of the floating plate and the tank wall is realized through the full compensation elastic mechanical seal of the plates. The sealing compensation range is large, the sealing effect is good, the service life is long, and the like, but the full compensation sealing depends on the elasticity of the plate to form a radian so that the sealing film is tightly attached to the tank wall, so that an oil-gas space exists in an area below the arc, static electricity or spark is possibly generated in the friction process of the mechanical arm, and when the oil-gas concentration in the arc space reaches a certain concentration and is in contact with the static electricity and the spark, dangerous conditions such as explosion, combustion and the like can be generated.

The bag type seal comprises a bag sleeve, sponge, an anti-overturn hook and other components. Fixing one end of the bag sleeve on the edge plate, placing the anti-overturning hook, placing the sponge above the anti-overturning hook, fixing the other end of the bag sleeve at the position where the bag sleeve is fixed at the beginning, and sealing by adopting a sealing pressure plate to ensure that the bag sleeve extends 50mm deep into the liquid level. The form has good sealing effect, belongs to immersion type sealing, has no oil-gas space between the sealing and the liquid level, but the capsule sleeve is tightly attached to the tank wall, has larger friction resistance in the operation process, is easy to cause the capsule sleeve to be worn and broken, and has small compensation range, short service life and difficult inspection and maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a full-liquid-receiving large-compensation seal which has the advantages of large compensation range, long service life and convenient maintenance.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: connect liquid big compensation completely and seal, including the bag cover, the bag cover is multilayer structure, by outer to interior backup pad, seal membrane, elastic plate, filled plate and the crawler shoe board of dividing into, bag cover inside packing has sealed sponge, and the bag cover is the pocket type, and the opening part of bag cover is installed and is prevented turning over the hook, prevents turning over the hook and fix on the edge board, and the one side of bag cover is located to the edge board, and one side that the edge board was kept away from to the bag cover is equipped with the jar wall.

Compared with the prior art, the utility model has the advantages that: the annular space who mainly uses floating plate and jar wall is sealed, can compensate the offset of floating plate operation in-process, and better suppressing volatilizing of oil in the source, sealing performance is better, can realize zero volatilizing of oil gas, and it is also very convenient to operate the starting, has fine spreading value, has good market prospect.

As an improvement, the bag sleeve, the edge plate and the tank wall are in interference fit, and the interference fit can ensure that the whole sealing performance is better while ensuring that the installation is convenient under the condition that the internal filler is sponge.

As an improvement, the bag cover and the top of the tank wall are provided with non-connecting areas, and the non-connecting areas are used for fixing the opening of the bag cover on one point, so that the compactness of the filling sponge inside can be guaranteed.

As an improvement, the anti-overturn hook is connected with the bag sleeve through a bolt, and the bag sleeve is fixed on the edge plate through the bolt to provide a supporting force so that the sealing is tighter.

Drawings

Fig. 1 is a structural schematic diagram of a full liquid-receiving large compensation seal.

Fig. 2 is a layered structure diagram of a fully liquid-filled large compensation sealed capsule.

As shown in the figure: 1. the device comprises a bag sleeve, 2, a support plate, 3, a sealing film, 4, an elastic plate, 5, a filling plate, 6, a sliding track plate, 7, a sealing sponge, 8, an anti-turnover hook, 9, an edge plate, 10, a tank wall, 11 and a liquid level.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The fully liquid-receiving large compensation seal comprises a bag sleeve 1, wherein the bag sleeve 1 is of a multilayer structure and is divided into a support plate 2, a seal film 3, an elastic plate 4, a filling plate 5 and a sliding shoe plate 6 from outside to inside, a seal sponge 7 is filled in the bag sleeve 1, the bag sleeve 1 is pocket-shaped, an anti-turnover hook 8 is installed at an opening of the bag sleeve 1, the anti-turnover hook 8 is fixed on an edge plate 9, the edge plate 9 is arranged on one side of the bag sleeve 1, and a tank wall 10 is arranged on one side of the bag sleeve 1 away from the edge plate 9.

As an improvement, the bag cover 1, the edge plate 9 and the tank wall 10 are in interference fit, and the interference fit can ensure that the whole sealing performance is better while the installation is convenient under the condition that the internal filler is sponge.

As an improvement, the top of the capsule sleeve 1 and the tank wall 10 are provided with non-connecting areas, and the non-connecting areas are used for fixing the opening of the capsule sleeve at a point, so that the compactness of the filling sponge inside can be ensured.

As an improvement, the anti-overturn hook 8 is connected with the bag sleeve 1 through a bolt, and the bag sleeve is fixed on the edge plate through the bolt to provide a supporting force so that the sealing is tighter.

The working principle of the utility model is as follows: bolts shown in the figure penetrate through bolt holes of the arc-shaped plate, the capsule sleeve and the anti-overturning hook are fixed on the outer side of the arc-shaped plate, the anti-overturning hook is used for tightly attaching the capsule sleeve to the edge plate, and the height of the capsule sleeve is calculated to enable the floating disc to be always in contact with the liquid level when the floating disc ascends or descends; the outer side of the bag sleeve is sequentially provided with a supporting plate, a sealing film, an elastic plate, a packing plate, a sliding plate and the like to construct and enhance the sealing performance, so that the annular interval between the floating disc and the tank wall is ensured not to have air volatilization and overflow.

The utility model is applied to sealing between the floating plate and the tank wall, and the sealing system is contacted with the immersion liquid of the petroleum product, thereby ensuring no oil-gas space in a sealing interval, reducing the danger coefficient of the storage tank and improving the safety; the sealing material has no corrosion to the product, no reaction and no pollution to the product; the service life is as long as 20 years, and the practicability and the economy are improved; the bag sleeve is internally provided with the anti-turnover hook and the sealing sponge, so that the close fit of the sealing system and the tank wall is ensured, and the sealing reliability is ensured; when the floating disc ascends or descends, the annular space is changed due to the fact that the thickness of the tank wall is changed along with the height, when the annular space is enlarged, the whole sealing system is tightly attached to the tank wall through the elasticity of the sponge, the external supporting strips, the high-elasticity plates and the like, and when the annular space is reduced, the whole sealing system is compressed.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the utility model, "plurality" means two or more unless explicitly specifically defined otherwise.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, reference to the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims (4)

1. Connect liquid big compensation completely and seal, including bag cover (1), its characterized in that: bag cover (1) is multilayer structure, by outer to interior backup pad (2), seal membrane (3), elastic plate (4), packing plate (5) and crawler shoe board (6) of dividing into, bag cover (1) inside packing has sealed sponge (7), bag cover (1) is the pocket type, the opening part of bag cover (1) is installed and is prevented turning over hook (8), prevent turning over hook (8) and fix on edge board (9), one side of bag cover (1) is located in edge board (9), one side that edge board (9) were kept away from in bag cover (1) is equipped with jar wall (10).

2. The full-liquid-receiving large compensation seal according to claim 1, characterized in that: the bag sleeve (1) and the edge plate (9) are in interference fit with the tank wall (10).

3. The full-liquid-receiving large compensation seal according to claim 1, characterized in that: the top of the capsule sleeve (1) and the top of the tank wall (10) are non-connection areas.

4. The full-liquid-receiving large compensation seal according to claim 1, characterized in that: the anti-overturn hook (8) is connected with the capsule sleeve (1) through a bolt.

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