CN213084239U - Leakage stopping device for petroleum storage tank - Google Patents

Abstract

The utility model belongs to the technical field of storage tank leaking stoppage, especially, be an oil storage tank leaking stoppage device, including inner pressing plate, inner sealing cushion, first screw rod and outer clamp plate, the tip welding of first screw rod is in the central point of inner pressing plate lower surface, the inner sealing cushion bonds at the lower surface of first screw rod, the lower extreme of first screw rod closes in the screw hole that the middle part was seted up of outer clamp plate soon, the upper surface of outer clamp plate is provided with outer sealing cushion, the upper surface integrated into one piece of outer clamp plate has the spacing ring; through outer sealing cushion of outer clamp plate surface mounting for inner sealing cushion and outer sealing cushion pass through inner pressure plate, first screw rod and outer clamp plate to be fixed at the inside and outside surface of storage tank, have increased and have carried out inclosed stability to the inside and outside surface of storage tank, and outer clamp plate surface integrated into one piece's spacing ring is installed in the spacing recess that outer sealing cushion surface was seted up simultaneously, has increased the stability that outer clamp plate and outer sealing cushion are connected.

Description

Leakage stopping device for petroleum storage tank

Technical Field

The utility model belongs to the technical field of the storage tank leaking stoppage, concretely relates to oil storage tank plugging device.

Background

In oil field production, during the storage of oil, the storage tank is often damaged, which causes the oil overflow to generate the environmental pollution event, because the oil is volatile and flammable. Welding operation is carried out in the airtight space of the storage tank, so that the storage tank is subjected to flash explosion, and greater personal injury and property loss are caused. The prior patent CN201821992377.X oil storage tank plugging device comprises: the connecting part can extend into the leakage hole of the leakage stopping device of the petroleum storage tank; the length direction of the threaded rod is perpendicular to the length direction of the connecting part; the threaded rod penetrates through the blocking part, and the blocking part is parallel to the connecting part; and the compression nut is screwed on the threaded rod and is positioned at one end, far away from the connecting part, of the plugging part, and the screwed compression nut can enable the plugging part to be gradually close to the connecting part so as to enable the plugging part to be pressed on the leak hole. The turn-up appears easily when the shutoff portion receives the extrusion of storage tank inner wall, and is not enough to jar body sealing performance simultaneously, and the pressure that the unit area received when jar body carries out the shutoff is big, causes the problem of shutoff department secondary weeping easily.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an oil storage tank plugging device has that the shutoff is airtight effectual, and the shutoff is stable simultaneously, and barrier propterty is high characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: a leakage stopping device for a petroleum storage tank comprises an inner pressing plate, an inner sealing rubber mat, a first screw and an outer pressing plate, wherein the end part of the first screw is welded at the central position of the lower surface of the inner pressing plate, the inner sealing rubber mat is adhered to the lower surface of the first screw, the lower end of the first screw is screwed in a screw hole formed in the middle of the outer pressing plate, an outer sealing rubber mat is arranged on the upper surface of the outer pressing plate, a limiting ring is integrally formed on the upper surface of the outer pressing plate, a limiting groove is formed in the lower surface of the outer sealing rubber mat, the limiting ring is arranged in the limiting groove, a buffer cavity is arranged in the inner sealing rubber mat, a sealing groove is formed in the lower surface of the inner sealing rubber mat, a second screw is arranged at the lower end of the first screw, an outer protecting cover is arranged on the outer portion of the outer pressing plate, a nut is screwed in the lower end of the second, the end of the outer shield is provided with a welding arc-shaped groove through welding.

As the utility model discloses a preferred technical scheme of oil storage tank plugging device, the lower extreme of inner seal cushion is outer cambered surface structure, just the equidistant distribution of seal groove that inner seal cushion lower surface was seted up.

As the utility model discloses a preferred technical scheme of oil storage tank plugging device, the upper surface of external seal cushion is interior cambered surface structure, the thickness of external seal cushion is the fourth of internal seal cushion thickness.

As the utility model discloses a preferred technical scheme of oil storage tank plugging device, spacing ring and spacing recess are the loop configuration.

As the utility model discloses a preferred technical scheme of oil storage tank plugging device, the cross-section of outer shield is "U" font, just the outer shield upper end is 45 degrees inclined planes.

As the utility model discloses a preferred technical scheme of oil storage tank plugging device, the central line coincidence of first screw rod and second screw rod.

Compared with the prior art, the beneficial effects of the utility model are that: the inner sealing rubber cushion and the outer sealing rubber cushion are fixed on the inner surface and the outer surface of the storage tank through the inner pressing plate, the first screw and the outer pressing plate by the outer sealing rubber cushion arranged on the surface of the outer pressing plate, the sealing stability of the inner surface and the outer surface of the storage tank is improved, meanwhile, a limiting ring integrally formed on the surface of the outer pressing plate is arranged in a limiting groove formed in the surface of the outer sealing rubber cushion, the connecting stability of the outer pressing plate and the outer sealing rubber cushion is improved, the dislocation caused by overlarge extrusion force on the outer sealing rubber cushion is avoided, meanwhile, a buffer cavity is formed in the inner sealing rubber cushion, the inner sealing rubber cushion is convenient to deform when being extruded, the contact area between the inner sealing rubber cushion and the inner surface of the storage tank when being extruded is increased, meanwhile, a sealing groove formed in the lower surface of the inner sealing rubber cushion is prevented from curling when being extruded, and the contact stability between, through the outer guard of outer casing externally mounted, the outer guard cover is outside at the second screw rod that first screw rod lower extreme set up simultaneously, and second screw rod lower extreme passes through nut and outer guard fixed connection, has improved the area of inner pressing plate, first screw rod and outer clamp connection time and storage tank atress, has reduced the pressure of storage tank leaking stoppage to pipe wall unit area, and the tip of outer guard passes through the welding simultaneously and is connected with the storage tank, has increased the stability that the outer guard was fixed on the storage tank surface.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 2;

in the figure: 1. an inner pressure plate; 2. an inner sealing rubber gasket; 3. a first screw; 4. an outer pressing plate; 5. sealing the rubber pad outside; 6. a limiting ring; 7. a limiting groove; 8. a sealing groove; 9. a buffer chamber; 10. a second screw; 11. an outer shroud; 12. a nut; 13. and welding the arc-shaped groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides a technical solution: a leakage stopping device of an oil storage tank comprises an inner pressing plate 1, an inner sealing rubber mat 2, a first screw rod 3 and an outer pressing plate 4, wherein the end part of the first screw rod 3 is welded at the central position of the lower surface of the inner pressing plate 1, the inner sealing rubber mat 2 is adhered to the lower surface of the first screw rod 3, the lower end of the first screw rod 3 is screwed in a screw hole formed in the middle of the outer pressing plate 4, an outer sealing rubber mat 5 is arranged on the upper surface of the outer pressing plate 4, a limiting ring 6 is integrally formed on the upper surface of the outer pressing plate 4, a limiting groove 7 is formed in the lower surface of the outer sealing rubber mat 5, the limiting ring 6 is arranged in the limiting groove 7, a buffer cavity 9 is arranged in the inner sealing rubber mat 2, a sealing groove 8 is formed in the lower surface of the inner sealing rubber mat 2, a second screw rod 10 is arranged at the lower end of the first screw rod 3, an outer protecting cover 11 is arranged outside the outer pressing plate 4, the end of the outer shield 11 is provided with a welding arc-shaped groove 13 by welding.

In the embodiment, the inner sealing rubber mat 2 and the outer sealing rubber mat 5 are fixed on the inner surface and the outer surface of the storage tank through the inner pressing plate 1, the first screw 3 and the outer pressing plate 4 by the outer sealing rubber mat 5 arranged on the surface of the outer pressing plate 4, so that the sealing stability of the inner surface and the outer surface of the storage tank is improved, meanwhile, the limiting ring 6 integrally formed on the surface of the outer pressing plate 4 is arranged in the limiting groove 7 formed on the surface of the outer sealing rubber mat 5, the connection stability of the outer pressing plate 4 and the outer sealing rubber mat 5 is improved, the dislocation caused by overlarge extrusion force of the outer sealing rubber mat 5 is avoided, meanwhile, the buffer cavity 9 is formed in the inner sealing rubber mat 2, so that the inner sealing rubber mat 2 is convenient to deform when being extruded, the area of the inner sealing rubber mat 2 contacting with the inner surface of the storage tank when being extruded is increased, meanwhile, the sealing groove 8 formed on the lower surface of the inner sealing rubber, the stability of inner seal cushion 2 and storage tank internal surface contact has been increased, outer shield 11 through 4 externally mounted on outer pressure plate, 11 covers are outside at the second screw rod 10 that 3 lower extremes of first screw rod set up simultaneously, and the second screw rod 10 lower extreme passes through nut 12 and 11 fixed connection of outer shield, inner pressing plate 1 has been improved, first screw rod 3 and outer pressure plate 4 when connecting with the area of storage tank atress, the pressure of storage tank leaking stoppage to pipe wall unit area has been reduced, the tip of outer shield 11 is passed through the welding and is connected with the storage tank simultaneously, the stability of outer shield 11 fixing on the storage tank surface has been increased.

Specifically, the lower end of the inner sealing rubber gasket 2 is of an outer arc surface structure, and the sealing grooves 8 formed in the lower surface of the inner sealing rubber gasket 2 are distributed at equal intervals.

In this embodiment, carry out deformation when being convenient for interior sealed cushion 2 receives the extrusion, the turn-up appears when avoiding interior sealed cushion 2 to receive the extrusion, has increased the seal of interior sealed cushion 2 and storage tank inner wall contact.

Specifically, the upper surface of the outer sealing rubber pad 5 is of an inner arc surface structure, and the thickness of the outer sealing rubber pad 5 is one fourth of that of the inner sealing rubber pad 2.

In this embodiment, the outer sealing rubber pad 5 is convenient to contact with the outer wall of the storage tank.

Specifically, the limiting ring 6 and the limiting groove 7 are both of annular structures.

In this embodiment, the outer sealing rubber mat 5 is limited by the outer pressing plate 4.

Specifically, the cross section of the outer shroud 11 is "U" shaped, and the upper end of the outer shroud 11 is a 45-degree inclined plane.

In this embodiment, the outer protective cover 11 is convenient to protect the outer pressing plate 4 and the outer sealing rubber pad 5.

Specifically, the center lines of the first screw 3 and the second screw 10 coincide with each other.

In this embodiment, the outer shroud 11 is easily positioned.

The utility model discloses a theory of operation and use flow: when oil points appear on the surface of the storage tank, a leakage point is reamed through a hand drill, an inner pressing plate 1 with an inner sealing rubber cushion 2 bonded on the surface is placed in the storage tank, a first screw 3 welded on the surface of the inner pressing plate 1 penetrates through the leakage point, an outer sealing rubber cushion 5 is placed on the surface of the outer pressing plate 4, an outer pressing plate 4 is screwed at the end part of the first screw 3, when the outer sealing rubber cushion 5 is contacted with the outer surface of the storage tank, a limiting ring 6 integrally formed on the surface of the outer pressing plate 4 slides in a limiting groove 7 formed in the surface of the outer sealing rubber cushion 5, the inner sealing rubber cushion 2 is extruded by the inner pressing plate 1 and is tightly attached to the inner surface of the storage tank, the outer sealing rubber cushion 5 is extruded by the outer pressing plate 4 and is tightly attached to the outer surface of the storage tank, the outer protective cover 11 is sleeved outside the outer pressing plate 4, and a second screw 10 arranged at the lower end of the first screw 3 penetrates through the outer protective cover 11, the end of the outer shield 11 is welded to the outer surface of the storage tank, and the nut 12 is screwed to the lower end of the second screw 10.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a petroleum storage tank plugging device, includes interior clamp plate (1), interior sealed cushion (2), first screw rod (3) and outer clamp plate (4), its characterized in that: the end part of the first screw rod (3) is welded at the central position of the lower surface of the inner pressing plate (1), the inner sealing rubber gasket (2) is adhered to the lower surface of the first screw rod (3), the lower end of the first screw rod (3) is screwed in a screw hole formed in the middle of the outer pressing plate (4), the upper surface of the outer pressing plate (4) is provided with an outer sealing rubber gasket (5), the upper surface of the outer pressing plate (4) is integrally formed with a limiting ring (6), the lower surface of the outer sealing rubber gasket (5) is provided with a limiting groove (7), the limiting ring (6) is arranged in the limiting groove (7), the inner part of the inner sealing rubber gasket (2) is provided with a buffer cavity (9), the lower surface of the inner sealing rubber gasket (2) is provided with a sealing groove (8), the lower end of the first screw rod (3) is provided with a second screw rod (10), the outer part of the outer pressing plate (4) is provided with an outer protective cover (11, the lower end of the second screw rod (10) penetrates through the outer protective cover (11) and is screwed with a screw cap (12), and the end part of the outer protective cover (11) is provided with a welding arc-shaped groove (13) through welding.

2. The oil storage tank plugging device of claim 1, wherein: the lower end of the inner sealing rubber mat (2) is of an outer arc surface structure, and sealing grooves (8) formed in the lower surface of the inner sealing rubber mat (2) are distributed at equal intervals.

3. The oil storage tank plugging device of claim 1, wherein: the upper surface of the outer sealing rubber mat (5) is of an inner arc surface structure, and the thickness of the outer sealing rubber mat (5) is one fourth of that of the inner sealing rubber mat (2).

4. The oil storage tank plugging device of claim 1, wherein: the limiting ring (6) and the limiting groove (7) are both of annular structures.

5. The oil storage tank plugging device of claim 1, wherein: the cross-section of outer guard (11) is "U" font, just outer guard (11) upper end is 45 degrees inclined planes.

6. The oil storage tank plugging device of claim 1, wherein: the central lines of the first screw (3) and the second screw (10) are superposed.

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