阅读说明：本技术 一种内浮盘边缘密封装置 (Inner floating disc edge sealing device ) 是由 马开良 管孝瑞 修德欣 张玉平 陶彬 程庆利 于 2020-05-28 设计创作，主要内容包括：本发明公开了一种内浮盘边缘密封装置,包括下边缘板、上边缘板；上边缘板的顶部与罐壁之间设置弹性密封单元；弹性密封单元的一端与上边缘的顶端固定连接,弹性密封单元另一端延伸至与罐壁内侧紧密贴合；上边缘板上设置支撑单元；支撑单元包括支撑板,支撑板的下端与上边缘板固定连接,支撑板的上端设置有弧形板,弧形板的外弧面向上抵靠在弹性密封单元上；下边缘板、上边缘板的外侧面包覆有边缘板密封层。本发明弹性密封单元具有较好的自然弹力来紧密贴合罐壁,使罐壁侧的密封效果良好；同时本发明在下边缘板、上边缘板的外侧面包覆有边缘板密封层,边缘板密封层将内浮盘侧的油气空间与外界完全隔绝,使内浮盘侧的密封效果良好。(The invention discloses an inner floating plate edge sealing device which comprises a lower edge plate and an upper edge plate, wherein the lower edge plate is provided with a first flange; an elastic sealing unit is arranged between the top of the upper edge plate and the tank wall; one end of the elastic sealing unit is fixedly connected with the top end of the upper edge, and the other end of the elastic sealing unit extends to be tightly attached to the inner side of the tank wall; the upper edge plate is provided with a supporting unit; the supporting unit comprises a supporting plate, the lower end of the supporting plate is fixedly connected with the upper edge plate, an arc-shaped plate is arranged at the upper end of the supporting plate, and the outer arc surface of the arc-shaped plate upwards abuts against the elastic sealing unit; the outer side surfaces of the lower edge plate and the upper edge plate are coated with edge plate sealing layers. The elastic sealing unit has better natural elasticity to be tightly attached to the tank wall, so that the sealing effect of the side of the tank wall is good; meanwhile, the outer side surfaces of the lower edge plate and the upper edge plate are coated with edge plate sealing layers, and the oil-gas space on the side of the inner floating disc is completely isolated from the outside by the edge plate sealing layers, so that the sealing effect on the side of the inner floating disc is good.)

1. An inner floating disc edge sealing device is characterized by comprising a plurality of lower edge plates fixedly connected with the edge of an inner floating disc; the upper edge plate is arranged at the upper part of the lower edge plate;

an elastic sealing unit used for covering an annular space between the inner floating disc and the tank wall is arranged between the top of the upper edge plate and the tank wall; one end of the elastic sealing unit, which is close to the inner floating disc, is fixedly connected with the top end of the upper edge, and one end of the elastic sealing unit, which is far away from the inner floating disc, extends to be tightly attached to the inner side of the tank wall;

a supporting unit which is obliquely pressed upwards to the elastic sealing unit is fixedly arranged on the upper edge plate; the supporting unit comprises a supporting plate, the lower end of the supporting plate is fixedly connected with the upper edge plate, an arc-shaped plate is arranged at the upper end of the supporting plate, and the outer arc surface of the arc-shaped plate upwards abuts against the elastic sealing unit which is arranged between the upper edge plate and the tank wall and is not tightly attached to the tank wall;

the outer side surfaces of the lower edge plate and the upper edge plate are coated with edge plate sealing layers.

2. The inner float edge seal according to claim 1 wherein the edge plate seal layer is teflon cloth.

3. The inner float edge seal device according to claim 1, wherein the elastic seal unit comprises an elastic seal plate covering an annular space between the inner float and the tank wall, the elastic seal plate being composed of a plurality of second stainless steel sheets connected end to end; one end of the second stainless steel sheet close to the inner floating disc is fixedly connected with the top end of the upper edge plate, and one end of the second stainless steel sheet far away from the inner floating disc extends to be tightly attached to the inner side of the tank wall;

a Teflon cloth layer used for covering a gap between the adjacent second stainless steel sheets is arranged on one side, opposite to the tank wall, of the elastic sealing plate; and one end of the Teflon cloth layer close to the inner floating disc is fixedly connected with the top end of the upper edge plate.

4. The inner floating disc edge seal device according to claim 3, wherein said Teflon cloth layer is in an integral structure with end-to-end lap joint, and one end of said Teflon cloth layer far from said inner floating disc is shorter than said second stainless steel sheet.

5. The inner floating disc edge sealing device according to claim 3, wherein a first stainless steel sheet for pressing the Teflon cloth layer on the elastic sealing plate is arranged on one side of the Teflon cloth layer opposite to the elastic sealing plate, one end of the first stainless steel sheet close to the inner floating disc is fixedly connected with the top end of the upper edge plate, and one end of the first stainless steel sheet far away from the inner floating disc extends to be tightly attached to the Teflon cloth layer; the first stainless steel sheet is provided with a plurality of blocks which are arranged at equal intervals along the circumferential direction of the inner floating disc; the outer arc surface of the arc plate upwards leans against the first stainless steel sheet.

6. The inner float edge seal according to claim 1 wherein the bottom of the lower edge plate is provided with a sealing bead which compresses the edge plate seal.

7. The inner float disc edge seal assembly of claim 5 wherein the edge end of said second stainless steel sheet remote from the upper edge plate is curled inwardly.

8. The inner float disc edge seal assembly of claim 7 wherein the edge end of the first stainless steel sheet remote from the upper edge plate is curled inwardly and is positioned between the curled end of the second stainless steel sheet and the upper edge plate.

9. The inner float edge seal according to claim 1 wherein said lower edge plate is of U-shaped configuration, the edge of said inner float being located within the U-shaped slot of the lower edge plate.

10. The inner float edge seal assembly of claim 9 wherein said upper edge plate is of a U-shaped configuration.

11. The inner floating plate edge sealing device as claimed in any one of claims 1 to 10, wherein one end of the elastic sealing unit, which is far away from the inner floating plate, extends downwards to be tightly attached to the inner side of the tank wall;

the lower end of the supporting plate is fixedly connected with the side face of the upper edge plate.

12. The inner float edge sealing device according to any one of claims 1 to 10, wherein one end of the elastic sealing unit away from the inner float extends upwards to be closely attached to the inner side of the tank wall;

the lower end of the supporting plate is fixedly connected with the top end of the upper edge plate.

Technical Field

The invention belongs to the technical field of floating roof tanks, and particularly relates to an inner floating disc edge sealing device.

Background

In the aspect of petrochemical storage technology, in order to reduce the volatilization of materials in the storage tank, a floating roof storage tank is generally adopted, an inner floating disc is arranged on the floating roof storage tank, the inner floating disc floats on the liquid level in the storage tank and moves synchronously along with the liquid level of the oil products in the storage tank, and the annular space between the inner floating disc and the wall of the oil tank is sealed by a sealing device, so that the contact of the materials and the atmosphere is limited.

At present, the seal structure of adopting between interior floating plate and the storage tank jar wall mainly includes: bag type sealing, elastic pressure plate sealing, scraper plate type sealing and mechanical sealing; the bag type seal is easy to damage, and oil enters the interior of the seal after being damaged to promote seal failure; the sealing effect of the elastic pressure plate on one side of the inner floating disc is poor, so that oil gas at the edge plate of the inner floating disc is easy to leak; the scraper type sealing is that the scraper is tightly attached to the tank wall, and the sealing effect is poor; the mechanical seal is that the pressure plate is tightly attached to the tank wall, and the sealing effect is poor by adopting a surface-to-surface contact mode.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an inner floating disc edge sealing device.

In order to achieve the purpose, the invention adopts the following technical scheme:

an inner floating plate edge sealing device comprises a plurality of lower edge plates fixedly connected with the edge of an inner floating plate; the upper edge plate is arranged at the upper part of the lower edge plate;

an elastic sealing unit used for covering an annular space between the inner floating disc and the tank wall is arranged between the top of the upper edge plate and the tank wall; one end of the elastic sealing unit, which is close to the inner floating disc, is fixedly connected with the top end of the upper edge, and one end of the elastic sealing unit, which is far away from the inner floating disc, extends to be tightly attached to the inner side of the tank wall;

a supporting unit which is obliquely pressed upwards to the elastic sealing unit is fixedly arranged on the upper edge plate; the supporting unit comprises a supporting plate, the lower end of the supporting plate is fixedly connected with the upper edge plate, an arc-shaped plate is arranged at the upper end of the supporting plate, and the outer arc surface of the arc-shaped plate upwards abuts against the elastic sealing unit which is arranged between the upper edge plate and the tank wall and is not tightly attached to the tank wall;

the outer side surfaces of the lower edge plate and the upper edge plate are coated with edge plate sealing layers.

Preferably, the edge plate sealing layer is made of teflon cloth.

Preferably, the elastic sealing unit comprises an elastic sealing plate covering an annular space between the inner floating plate and the tank wall, and the elastic sealing plate consists of a plurality of second stainless steel sheets connected end to end; one end of the second stainless steel sheet close to the inner floating disc is fixedly connected with the top end of the upper edge plate, and one end of the second stainless steel sheet far away from the inner floating disc extends to be tightly attached to the inner side of the tank wall;

a Teflon cloth layer used for covering a gap between the adjacent second stainless steel sheets is arranged on one side, opposite to the tank wall, of the elastic sealing plate; and one end of the Teflon cloth layer close to the inner floating disc is fixedly connected with the top end of the upper edge plate.

Preferably, the Teflon cloth layer adopts an integral structure in an end-to-end lap joint mode, and one end, far away from the inner floating disc, of the Teflon cloth layer is shorter than the second stainless steel sheet.

Preferably, a first stainless steel sheet used for pressing the Teflon cloth layer on the elastic sealing plate is arranged on one side, opposite to the elastic sealing plate, of the Teflon cloth layer, one end, close to the inner floating disc, of the first stainless steel sheet is fixedly connected with the top end of the upper edge plate, and one end, far away from the inner floating disc, of the first stainless steel sheet extends to be tightly attached to the Teflon cloth layer; the first stainless steel sheet is provided with a plurality of blocks which are arranged at equal intervals along the circumferential direction of the inner floating disc; the outer arc surface of the arc plate upwards leans against the first stainless steel sheet.

Preferably, the bottom of the lower edge plate is provided with a sealing bead for pressing the edge plate sealing layer.

Preferably, the edge end of the second stainless steel sheet remote from the upper edge plate is curled inwardly.

Preferably, the edge end of the first stainless steel sheet remote from the upper edge plate is curled inward and is located between the curled end of the second stainless steel sheet and the upper edge plate.

Preferably, the lower edge plate is of a U-shaped structure, and the edge of the inner floating disc is located in the U-shaped groove of the lower edge plate.

Preferably, the upper edge plate is of a U-shaped structure.

Preferably, one end of the elastic sealing unit, which is far away from the inner floating disc, extends downwards to be tightly attached to the inner side of the tank wall;

the lower end of the supporting plate is fixedly connected with the side face of the upper edge plate.

Preferably, one end of the elastic sealing unit, which is far away from the inner floating disc, extends upwards to be tightly attached to the inner side of the tank wall;

the lower end of the supporting plate is fixedly connected with the top end of the upper edge plate.

The invention has the beneficial effects that:

(1) the elastic sealing unit in the inner floating disc edge sealing device comprises a first stainless steel sheet, a Teflon cloth layer and a second stainless steel sheet, wherein the stainless steel sheet has good natural elasticity to be tightly attached to the tank wall, and meanwhile, the deformation of the stainless steel sheet is small; the Teflon cloth layer and the second stainless steel sheet are arranged, so that the sealing effect of the tank wall side is good; meanwhile, the outer side surfaces of the lower edge plate and the upper edge plate are coated with the edge plate sealing layers, and the edge plate sealing layers completely isolate the oil-gas space on the inner floating disc side from the outside, so that the sealing effect on the inner floating disc side is good, the annular space between the inner floating disc and the tank wall is isolated from the outside, the integral sealing is realized, and the oil-gas leakage is avoided.

(2) The supporting unit which is obliquely pressed upwards to the elastic sealing unit is fixedly arranged on the side surface of the upper edge plate of the inner floating plate edge sealing device, and the supporting unit effectively compensates the tension of the compression deformation of the elastic end of the elastic sealing unit so as to ensure that enough attaching force exists between the elastic sealing unit and the tank wall, and the optimal sealing effect can be kept.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a schematic sectional view showing the structure of an inner floating plate edge sealing device in example 1 of the present invention;

FIG. 2 is a schematic view of the constitution of an elastic sealing unit in example 1 of the present invention;

FIG. 3 is a schematic sectional view showing the structure of an elastic sealing unit in example 1 of the present invention;

FIG. 4 is a schematic sectional view showing the structure of an inner floating plate edge sealing device in example 4 of the present invention;

wherein:

1-floating plate body, 2-lower edge plate, 3-upper edge plate, 4-edge plate sealing layer, 5-elastic sealing unit, 51-first stainless steel sheet, 52-Teflon cloth layer, 53-second stainless steel sheet, 501-fixed end, 502-elastic end, 503-joint end, 6-tank wall, 7-supporting unit, 71-supporting plate, 72-arc plate and 8-sealing pressing strip.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present invention, terms such as "upper", "lower", "bottom", "top", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only terms of relationships determined for convenience in describing structural relationships of the components or elements of the present invention, and do not particularly indicate any components or elements of the present invention, and are not to be construed as limiting the present invention.

In the present invention, terms such as "connected" and "connecting" should be interpreted broadly, and mean either a fixed connection or an integral connection or a detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.

The invention is further illustrated with reference to the following figures and examples.

Example 1:

as shown in fig. 1, an inner floating plate edge sealing device includes a plurality of lower edge plates 2 fixedly connected to the edge of an inner floating plate 1, specifically, the lower edge plates 2 are U-shaped, and the edge of the inner floating plate 1 is located in a U-shaped groove of the lower edge plates 2; an upper edge plate 3 is arranged at the upper part of the lower edge plate 2, and particularly, the upper edge plate is of a U-shaped structure;

an elastic sealing unit 5 for covering an annular space between the inner floating plate 1 and the tank wall 6 is arranged between the top of the upper edge plate 3 and the tank wall 6; one end of the elastic sealing unit 5 close to the inner floating plate 1 is fixedly connected with the top end of the upper edge 3, and one end of the elastic sealing unit 5 far away from the inner floating plate 1 extends to be tightly attached to the inner side of the tank wall 6;

specifically, one end of the elastic sealing unit 5, which is far away from the inner floating plate 1, extends downwards to be tightly attached to the inner side of the tank wall 6;

as shown in fig. 3, the elastic sealing unit 5 comprises a fixed end 501 at the upper part for fixedly connecting with the top of the upper edge plate 3, a fitting end 503 closely fitting with the inner side of the tank wall 6, and an elastic end 502 between the fixed end 501 and the fitting end 503, wherein the elastic end 502 enables the elastic sealing unit 5 to tightly fit with the inner side of the tank wall 6; when the distance between the inner floating plate 1 and the tank wall 6 is increased due to the deformation of the storage tank, the elastic end 502 of the elastic sealing unit 5 can enable the joint end to be always kept in joint with the inner side of the tank wall 6; the joint of the elastic sealing unit 5 and the inner side of the tank wall 6 realizes the sealing of the tank wall side;

a supporting unit 7 which is obliquely pressed upwards to the elastic sealing unit 5 is fixedly arranged on the upper edge plate 3; the supporting unit 7 comprises a supporting plate 71, the lower end of the supporting plate 71 is fixedly connected with the side surface of the upper edge plate 3, an arc plate 72 is arranged at the upper end of the supporting plate 71, and the outer arc surface of the arc plate 72 upwards abuts against the elastic sealing unit 5 which is arranged between the upper edge plate 3 and the tank wall 6 and is not tightly attached to the tank wall 6; the supporting unit 7 effectively compensates the tension of the compression deformation of the elastic end 502 of the elastic sealing unit 5 so as to ensure that enough adhesion force exists between the elastic sealing unit 5 and the tank wall 6, so that the optimal sealing effect can be kept;

the outer side surfaces of the lower edge plate 2 and the upper edge plate 3 are coated with edge plate sealing layers 4; the edge plate sealing layer 4 completely isolates the oil-gas space on the inner floating disc side from the outside, so that the sealing effect on the inner floating disc side is good; specifically, the edge plate sealing layer 4 is made of teflon cloth.

Preferably, the elastic sealing unit 5 comprises an elastic sealing plate covering an annular space between the inner floating plate 1 and the tank wall 6, and the elastic sealing plate is composed of a plurality of second stainless steel sheets 53 connected end to end; one end of the second stainless steel sheet 53 close to the inner floating disc 1 is fixedly connected with the top end of the upper edge plate 3, and one end of the second stainless steel sheet 53 far away from the inner floating disc extends to be tightly attached to the inner side of the tank wall 6; the elastic sealing plate is composed of a plurality of second stainless steel plates 53 connected end to end, and compared with the elastic sealing plate which is made of a whole plate, the elastic sealing plate is simple to manufacture, and the manufacturing cost can be reduced;

as shown in fig. 2, a teflon cloth layer 52 for covering a gap between adjacent second stainless steel sheets 53 is disposed on a side of the elastic sealing plate opposite to the tank wall 6, and when the elastic sealing unit is extended downward, the teflon cloth layer 52 is located at the bottom of the elastic sealing plate; one end of the Teflon cloth layer 52 close to the inner floating disc 1 is fixedly connected with the top end of the upper edge plate 3; teflon cloth layer 52 covers the gap between adjacent second stainless steel sheets 53, and plays an effective sealing role in the volatilized oil gas, thereby improving the overall sealing effect.

Preferably, the teflon cloth layer 52 is of an integral structure which is overlapped end to end, and one end of the teflon cloth layer 52 far away from the inner floating disc 1 is shorter than the second stainless steel sheet 53.

Preferably, as shown in fig. 2, a first stainless steel sheet 51 for pressing the teflon cloth layer 52 against the elastic sealing plate is disposed on a side of the teflon cloth layer 52 opposite to the elastic sealing plate, when the elastic sealing unit extends downward, the first stainless steel sheet 51 is located at the bottom of the teflon cloth layer 52, one end of the first stainless steel sheet 51 close to the inner floating plate 1 is fixedly connected with the top end of the upper edge plate 3, and one end of the first stainless steel sheet 51 far from the inner floating plate extends to be closely attached to the teflon cloth layer 52; the first stainless steel sheets 51 are provided with a plurality of blocks and are arranged at equal intervals along the circumferential direction of the inner floating disc 1; the outer arc surface of the arc plate 72 upwards abuts against the first stainless steel sheet 51; the first stainless steel sheet 51 generates pressure on the teflon cloth layer 52 and the second stainless steel sheet 53, so that the teflon cloth layer 52 is tightly attached to the second stainless steel sheet 53.

Preferably, the bottom of the lower edge plate 2 is provided with a sealing bead 8 which presses the edge plate sealing layer 4.

Example 2:

the edge end of the second stainless steel sheet 53 far away from the upper edge plate 3 is curled inwards, and the purpose of curling inwards is to prevent the second stainless steel sheet 53 from being blocked with the welding seam on the tank wall 6 to cause the sealing deformation failure.

The rest of the technical scheme is completely the same as that of the embodiment 1.

Example 3:

the edge end of the first stainless steel sheet 51 far away from the upper edge plate 3 is curled inwards and is positioned between the curled end of the second stainless steel sheet 53 and the upper edge plate 3; namely, the height difference exists between the curled end of the first stainless steel sheet 51 and the curled end of the second stainless steel sheet 53, and the purpose of the height difference is to facilitate installation.

The rest of the technical scheme is completely the same as that of the embodiment 2.

Example 4:

as shown in fig. 4, one end of the elastic sealing unit 5 away from the inner floating plate 1 extends upwards to be tightly attached to the inner side of the tank wall 6;

the lower end of the supporting plate 71 is fixedly connected with the top end of the upper edge plate 3.

The rest of the technical scheme is completely the same as that of the embodiment 1.

In particular, the elastic sealing unit 5 in the present invention may also be arranged upwards, as shown in fig. 4, depending on the actual situation at the installation site; when the elastic sealing unit 5 is disposed upward, the first stainless steel sheet 51 is located at the uppermost portion, the second stainless steel sheet 52 is located at the lowermost portion, and the teflon cloth layer 52 is located between the first stainless steel sheet 51 and the second stainless steel sheet 52; while a support unit 7 is provided on the top of the upper edge plate 3, the support unit 7 is pressed rightward toward the elastic sealing unit 5.

The elastic sealing unit in the inner floating disc edge sealing device comprises a first stainless steel sheet, a Teflon cloth layer and a second stainless steel sheet, wherein the stainless steel sheet has good natural elasticity to be tightly attached to the tank wall, and meanwhile, the deformation of the stainless steel sheet is small; the Teflon cloth layer and the second stainless steel sheet are arranged, so that the sealing effect of the tank wall side is good; meanwhile, the outer side surfaces of the lower edge plate and the upper edge plate are coated with the edge plate sealing layers, and the edge plate sealing layers completely isolate the oil-gas space on the side of the inner floating disc from the outside, so that the sealing effect on the side of the inner floating disc is good, the annular space between the inner floating disc and the tank wall is isolated from the outside, the integral sealing is realized, and the oil-gas leakage is avoided; the supporting unit which is obliquely pressed upwards to the elastic sealing unit is fixedly arranged on the side surface of the upper edge plate of the inner floating plate edge sealing device, and the supporting unit effectively compensates the tension of the compression deformation of the elastic end of the elastic sealing unit so as to ensure that enough attaching force exists between the elastic sealing unit and the tank wall, and the optimal sealing effect can be kept.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the present invention, and it should be understood by those skilled in the art that various modifications and changes may be made without inventive efforts based on the technical solutions of the present invention.