CN215707987U

CN215707987U - Elastic sealing device for floating roof storage tank

Info

Publication number: CN215707987U
Application number: CN202122384467.9U
Authority: CN
Inventors: 徐造明; 常建军
Original assignee: Luoyang Hengji Petrochemical Technology Co ltd
Current assignee: Luoyang Hengji Petrochemical Technology Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-02-01
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses an elastic sealing device for a floating roof storage tank, which relates to the technical field of sealing of the floating roof storage tank and comprises a floating roof body and an elastic sealing block, wherein an annular groove is formed in the periphery of the contact surface of the floating roof body and a pipe wall, the elastic sealing block is accommodated in the annular groove, a plurality of jacking blocks are arranged between the inner side of the elastic sealing block and the annular groove, the jacking blocks are connected with the floating roof body in a sliding manner, one end, away from the elastic sealing block, of each jacking block extends into a first groove formed in the center of the floating roof body, an adjusting mechanism is arranged in the first groove and is configured to drive the jacking blocks to slidably extrude the elastic sealing blocks to adjust the gap between the elastic sealing blocks and the tank wall, the jacking blocks are arranged on the inner side of the elastic sealing blocks, the jacking blocks are driven to be internally and externally contracted by the adjusting mechanism, the extrusion force of the elastic sealing blocks on the tank wall can be adjusted, and the gap between the floating roof body and the inner wall of the storage tank can be increased when the floating roof body is lifted, friction force is reduced, and pulling force for pulling the floating roof body upwards and friction loss of the elastic sealing block are reduced.

Description

Elastic sealing device for floating roof storage tank

Technical Field

The utility model belongs to the technical field of sealing of a floating roof storage tank, and particularly relates to an elastic sealing device for a floating roof storage tank.

Background

In recent years, the reserve of petroleum energy increasingly shows very important status in the social construction of China, and a large amount of national petroleum reserve bases are newly built in China in recent years to build a large number of petroleum storage tanks. Along with the improvement of safety and environmental protection requirements, effective sealing is required to be adopted for the space communicated with the outside in the oil storage area of the oil storage tank. The annular gap between the floating roof of the storage tank and the tank wall is the key point of oil gas volatilization and loss, and the sealing device at the position has good sealing performance, reduces oil loss and reduces safety and environmental problems caused by oil gas leakage.

The tight power of pasting between current sealing device and the storage tank wall can not be adjusted, and after the oil in the storage tank was arranged, the residual oil volume on the storage tank wall was less or solid dry, consequently, need make progress when floating the top because sealing device has increased the degree of difficulty of taking out this moment, has aggravated the friction between sealing device and the storage tank wall simultaneously, consequently, we provide an elastic sealing device for top storage tank.

SUMMERY OF THE UTILITY MODEL

In view of the shortcomings in the prior art, the present invention is directed to an elastic sealing device for a floating roof tank, which solves the above problems in the prior art.

The purpose of the utility model can be realized by the following technical scheme: the utility model provides a floating roof elastic sealing device for storage tank, is including floating roof body and elastic sealing piece to and demountable installation is at the end cover on floating roof body top, floating roof body and pipe wall contact surface week side offered the annular, elastic sealing piece is accomodate in the annular, be equipped with a plurality of kicking blocks between elastic sealing piece inboard and the annular, kicking block and floating roof body sliding connection, elastic sealing piece one end is kept away from to the kicking block and is extended to the first recess of seting up at floating roof body center, be equipped with adjustment mechanism in the first recess, adjustment mechanism is configured and is used for driving the kicking block to slide and extrudees elastic sealing piece and adjust the clearance between elastic sealing piece and the jar wall.

As a further scheme of the utility model, the adjusting mechanism comprises a connecting block and a connecting rod, a round rod is arranged in the first groove along the vertical direction, a round hole is formed in the connecting block and sleeved on the round rod to be in sliding connection with the round rod, the connecting rod is arranged between the connecting block and the top block, and two ends of the connecting rod are respectively hinged to the top block and the connecting block.

As a further scheme of the utility model, a spring is sleeved on the round rod and is arranged between the connecting block and the end cover, the top end of the connecting block is fixedly connected with a pull wire, and the pull wire penetrates through the end cover and is fixed on the spool.

As a further scheme of the utility model, the bobbin is rotationally connected with the fixed seat in a damping manner, a clamping groove is formed in the upper bottom end of the bobbin and is sleeved at the top end of the tank wall, a stud is arranged on the bobbin, and the stud is in threaded connection with the bobbin and extends into the clamping groove formed in the bobbin.

As a further scheme of the utility model, the elastic sealing block adopts a hydraulic bag.

The utility model has the beneficial effects that: set up the kicking block in the elastic seal piece inboard, through adjusting mechanism drive kicking block internal compression stretch out, can adjust the extrusion force of elastic seal piece to the storage tank wall, when carrying and drawing the floating roof body, can increase the clearance between floating roof body and the storage tank inner wall, reduced frictional force, reduced the pulling force of the pull-up of floating roof body and the friction loss of elastic seal piece.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the floating roof body of the present invention;

FIG. 3 is a vertical sectional view of FIG. 1;

FIG. 4 is a horizontal sectional view of FIG. 1;

FIG. 5 is a cross-sectional view of the floating roof body of the present invention;

in the figure: the device comprises a fixed seat-1, a spool-2, a pull wire-3, an elastic sealing block-4, a top block-5, a connecting block-6, a connecting rod-7, a floating top body-8, a spring-9, an end cover-10, a stud-11, a round rod-81, a ring groove-801, a groove-802 and a through hole-803.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, in an embodiment of the present invention, an elastic sealing device for a floating roof storage tank includes a floating roof body 8, an elastic sealing block 4, and an end cover 10 detachably mounted on a top end of the floating roof body 8, an annular groove 801 is formed around a contact surface between the floating roof body 8 and a pipe wall, the elastic sealing block 4 is received in the annular groove 801, a plurality of top blocks 5 are disposed between an inner side of the elastic sealing block 4 and the annular groove 801, the top blocks 5 are slidably connected to the floating roof body 8, one end of each top block 5, which is far away from the elastic sealing block 4, extends into a first groove 804 formed in a center of the floating roof body 8, and an adjusting mechanism is disposed in the first groove 804 and configured to drive the top blocks 5 to slidably extrude the elastic sealing block 4 to adjust a gap between the elastic sealing block 4 and the tank wall.

Specifically, as shown in fig. 4 and 5, a connecting hole 802 is further formed in the inner ring side of the ring groove 801, the connecting hole 802 is provided with a through hole 803 which penetrates through the first groove 804, the top block 5 is distributed around the elastic sealing block 4, when the oil amount in the storage tank is reduced, the floating top body 8 slides downwards under the self gravity, oil gas is attached to and isolated from the inner wall of the storage tank through the elastic sealing block 4, when the floating top body 8 needs to be lifted upwards, the top block 5 is driven to retract inwards through an adjusting mechanism, so that the extrusion force on the elastic sealing block 4 is reduced, the gap between the floating top body 8 and the inner wall of the storage tank is increased, the frictional force is reduced, and the pulling force of the floating top body 8 and the friction loss of the elastic sealing block 4 are reduced.

Specifically, adjustment mechanism includes connecting block 6 and connecting rod 7, be equipped with round bar 81 along vertical direction in the first recess 804, seted up the round hole cup joint on round bar 81 on the connecting block 6 with round bar 81 sliding connection, connecting rod 7 is between connecting block 6 and kicking block 5, and connecting rod 7 both ends are articulated in kicking block 5 and connecting block 6 respectively, can adjust the clearance between elastic seal piece 4 and the storage tank wall through reciprocating connecting block 6 promptly, adjust the leakproofness, and convenient operation is swift, and accessible linear drive mechanism drives connecting block 6 up-and-down motion to the motion of control kicking block 5, for example cylinder and lead screw etc..

In some embodiments, as shown in fig. 2 and 3, a spring 9 is sleeved on the round rod 81, the spring 9 is interposed between the connecting block 6 and the end cover 10, the top end of the connecting block 6 is fixedly connected with a pull wire 3, the pull wire 3 passes through the end cover 10 and is fixed on the spool 2, when the oil level in the storage tank drops, the floating roof body 8 loses buoyancy, the connecting block 6 is pulled by the pull wire 3, that is, the connecting block 6 moves upwards, the pushing block 5 reduces the extrusion on the elastic sealing block 4, when the floating roof body 8 moves downwards to the oil level, the connecting block 6 loses the traction of the pull wire 3, and the connecting block 6 drives the pushing block 5 downwards to extrude the elastic sealing block 4 under the action of the spring 9, so that the sealing effect is ensured.

Preferably, as shown in fig. 1, the bobbin 2 is rotationally connected with the fixing base 1 in a damping manner, a clamping groove is formed in the bottom end of the bobbin 2 and is sleeved at the top end of the tank wall, a stud 11 is arranged on the bobbin 2, the stud 11 is in threaded connection with the bobbin 2 and extends into the clamping groove formed in the bobbin 2, the bobbin 2 is fixed at the top end of the tank wall through the stud 11, and the bobbin 2 is rotationally connected with the fixing base 1 in a damping manner, when the oil level drops, the bobbin 2 is delayed to rotate in a delayed manner under the action of damping force, that is, after the oil level drops, the floating roof body 8 is delayed to slide down, and because the oil level is stable in a short period, condensation exists between the elastic sealing block 4 and the tank wall, at this moment, in the moment that the oil level drops, a gap between the elastic sealing block 4 and the tank wall is reduced after the connecting block 6 is pulled by the pull wire 3, and smooth sliding down of the floating roof body 8 can be ensured.

In some embodiments, the elastic sealing block 4 is a hydraulic bag, and when the elastic sealing block 4 is filled with fire extinguishing materials and the like, fire can be effectively extinguished and air can be isolated.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", etc., indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the method is simple. 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. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

It will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the spirit and scope of the utility model, and any equivalents thereto, such as those skilled in the art, are intended to be embraced therein.

Claims

1. An elastic sealing device for a floating roof storage tank comprises a floating roof body (8), an elastic sealing block (4) and an end cover (10) which is detachably arranged at the top end of the floating roof body (8), it is characterized in that a ring groove (801) is arranged on the periphery of the contact surface of the floating roof body (8) and the pipe wall, the elastic sealing block (4) is accommodated in the annular groove (801), a plurality of jacking blocks (5) are arranged between the inner side of the elastic sealing block (4) and the annular groove (801), the top block (5) is connected with the floating roof body (8) in a sliding way, one end of the top block (5) far away from the elastic sealing block (4) extends into a first groove (804) formed in the center of the floating roof body (8), an adjusting mechanism is arranged in the first groove (804), and the adjusting mechanism is configured to drive the top block (5) to slidably extrude the elastic sealing block (4) to adjust the gap between the elastic sealing block (4) and the tank wall.

2. The elastic sealing device for the floating roof storage tank is characterized in that the adjusting mechanism comprises a connecting block (6) and a connecting rod (7), a round rod (81) is arranged in the first groove (804) along the vertical direction, a round hole is formed in the connecting block (6) and sleeved on the round rod (81) to be in sliding connection with the round rod (81), the connecting rod (7) is arranged between the connecting block (6) and the top block (5), and two ends of the connecting rod (7) are hinged to the top block (5) and the connecting block (6) respectively.

3. The elastic sealing device for the floating roof storage tank is characterized in that a spring (9) is sleeved on the round rod (81), the spring (9) is arranged between the connecting block (6) and the end cover (10), the top end of the connecting block (6) is fixedly connected with the pull wire (3), and the pull wire (3) penetrates through the end cover (10) and is fixed on the spool (2).

4. The elastic sealing device for the floating roof storage tank is characterized in that the bobbin (2) is connected with the fixed seat (1) in a damping rotation mode, a clamping groove is formed in the upper bottom end of the bobbin (2) and sleeved on the top end of the tank wall, a stud (11) is arranged on the bobbin (2), and the stud (11) is connected with the bobbin (2) in a threaded mode and extends into the clamping groove formed in the bobbin (2).

5. The elastic sealing device for the floating roof tank as claimed in claim 1, wherein the elastic sealing block (4) is a hydraulic bag.