CN110723425A

CN110723425A - Aluminum profile floating plate

Info

Publication number: CN110723425A
Application number: CN201811145307.5A
Authority: CN
Inventors: 李兴强; 胡升
Original assignee: Guangdong Shihua Equipment Technology Co Ltd
Current assignee: China Petroleum and Chemical Corp
Priority date: 2018-07-17
Filing date: 2018-09-29
Publication date: 2020-01-24
Anticipated expiration: 2038-09-29
Also published as: CN110723425B; CN110723424A; CN110723424B

Abstract

The invention discloses an aluminum profile floating plate which comprises a floating plate body, wherein the floating plate body comprises a plurality of floating box elements, each floating box element is provided with a cavity with a multi-cabin structure, the floating plate also comprises a side wall sealing structure, each side wall sealing structure comprises a wall surface oil scraping brush connected with a telescopic air bag, and the wall surface oil scraping brushes form annular sealing with the wall surface under the action of the telescopic air bags.

Description

Aluminum profile floating plate

Technical Field

The invention relates to the field of petrochemical storage, in particular to an aluminum profile floating disc.

Background

The floating plate generally comprises a floating plate body, a sealing device, a one-way valve, an electrostatic discharge device and the like. The floating disc floats on the liquid storage surface, an annular space is arranged between the floating disc body and the tank wall, and a sealing element is arranged in the annular space. The floating disc body and the sealing element form a covering layer on the liquid storage surface together, the floating disc body floats up and down along with the liquid storage, so that the liquid storage in the tank is completely separated from the atmosphere and is not influenced by external factors such as wind, rain and the like, the evaporation loss in the liquid storage process is reduced, the atmospheric pollution is reduced, and the quality and the safety of liquid storage are easily ensured. Therefore, the floating plate is the safest, most economical and most convenient structural form for reducing the evaporation loss of the materials in the fixed top storage tank.

At present, the common storage tank floating plates at home and abroad mainly comprise a floating cylinder type and a full-liquid type. In China, the floating disc type used for a long time is mainly a floating drum type, and all equipment manufacturers research the full-liquid receiving type but do not develop deeply.

The full liquid receiving floating plate mainly comprises a main beam, a cabin box, a support column and a peripheral seal, and is additionally provided with holes and auxiliary parts with different functions according to different use requirements. The full liquid-receiving floating plate is spliced by a plurality of cabin box plates, when in use, the lower part of the floating block is immersed into the liquid level, and the integral hollow floating block floats on the liquid level, so that the upper gas phase and the lower liquid phase space are isolated, and the effect of covering closed liquid is achieved.

The full-liquid-receiving floating plate has the characteristics of high safety, energy conservation, environmental protection, stable operation, simple and convenient construction and the like; the floating disc has the advantages of high overall structural strength, compact structure, good shock resistance and convenience in maintenance and repair. Compared with floating plates of the types such as a floating cabin type, a deck type and a floating cylinder type, the full liquid receiving type floating plate has the advantages of being comprehensive in technical improvement, avoiding the single buoyancy unit, eliminating oil and gas space and the like.

There are many advantages to all-liquid pontoons, but the following problems also exist:

1. the single-section buoyancy tank has no cavity and cannot form buoyancy of a floating disc;

2. the cavity needs to be welded and formed, and the requirement of a continuous welding process is high due to the fact that a single element is long;

3. the cavity formed by welding on site can not be subjected to thermal aging treatment, and the internal stress generated after the buoyancy tank is welded can not be eliminated, so that the structural strength is weakened;

4. the surface quality of the welded buoyancy tank is poor, the buoyancy tank is easy to crack, and a medium is easy to enter the whole buoyancy disc due to the fact that only a single cavity is formed;

5. the elements are simply spliced and assembled, and the gap is too large after assembly, so that the volatile oil medium is easy to evaporate;

6. the field installation is complex, the assembly is carried out after the field welding, the working procedures are more, and the efficiency is low;

7. the floating disc is formed by welding, a plurality of welding lines are formed, and the floating disc is locally leaked due to the defects of the welding lines under the influence of a welding technology, so that a sinking disc is possibly caused;

8. the lifting of the floating disc in the storage tank is guided by the upright post, if the gravity center of the floating disc slightly deviates, a chuck can be caused, and the floating disc is sunk;

accordingly, those skilled in the art have endeavored to develop an aluminum profile floating plate to solve the problem of material evaporation from a fixed-roof tank.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the technical problem to be solved by the present invention is how to prevent the evaporation of the floating plate fixed top tank material.

In order to achieve the purpose, the invention provides an aluminum profile floating plate which comprises a floating plate body, wherein the floating plate body comprises a plurality of floating box elements, and the floating box elements are provided with cavities with multi-cabin structures.

Further, the floating disc further comprises a side wall sealing structure, the side wall sealing structure comprises a wall surface oil scraping brush connected with the telescopic air bag, and the wall surface oil scraping brush and the wall surface form annular sealing under the action of the telescopic air bag.

Further, the telescopic airbag includes an airbag bellows and a radial support rod, and the airbag bellows is configured to be telescopic in a direction of the radial support rod.

Furthermore, the air pressure in the telescopic air bag is 0.12-0.14 MPa.

Further, a limiting wheel is arranged below the side wall sealing structure.

Further, lateral wall seal structure still includes for the first time scrapes the oil brush and scrapes the oil brush for the second time, and the first time scrapes the oil brush and includes first oil scraping tooth, sealed gum cover and sealed rubber cloth, and the second time scrapes the oil brush and includes second time oil scraping tooth and sealed rubber slab, and the first time oil brush of scraping is located second time oil brush upper strata.

Further, the floating disc further comprises supporting legs, the supporting legs are located on the lower side of the floating disc body, the supporting legs are arranged to be fixedly connected with the floating disc body, aluminum plates are arranged at the bottoms of the supporting legs and are fixedly connected with the bottom of the supporting legs through welding, rubber pads are arranged at the lower ends of the aluminum plates, and the aluminum plates and the rubber pads are fixedly connected through bolts.

Further, the floating disc further comprises supporting legs, the supporting legs are located at the bottom of the oil tank, the supporting legs are arranged to be fixedly connected with the bottom of the oil tank, an aluminum plate is arranged on the upper portions of the supporting legs and is fixedly connected with the upper portions of the supporting legs through welding, a rubber pad is arranged at the upper end of the aluminum plate, and the aluminum plate and the rubber pad are fixedly connected through bolts.

Compared with the prior art, the invention has the following specific beneficial effects:

(1) the cavity of a single buoyancy tank element is designed into a multi-cabin structure, the surface is cracked, and the influence on the buoyancy of the floating plate is greatly reduced;

(2) the safety wheels are designed around the floating disc, so that the buffering effect is realized, and the phenomenon of chucking is avoided;

(3) the design of scalable gasbag or gasbag bellows is adopted in the sealed of floating plate oil tank wall all around, scrapes the brush to the clean wall that the oil medium design of difference is different, and the design of safety wheel forms the sealed effect of whole floating plate and oil tank wall in addition, still can guarantee that the floating plate can not touch the oil tank lateral wall.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is a side wall seal configuration according to one embodiment of the present invention;

FIG. 2 is an inflatable comb airbag sealing ring according to an embodiment of the present invention;

FIG. 3 is a seal configuration between a sidewall seal and a float plate in accordance with an embodiment of the present invention;

FIG. 4 is a block diagram of the mounting of the floating plate and the supporting legs according to an embodiment of the present invention;

FIG. 5 illustrates a support foot mounting structure according to an embodiment of the present invention;

FIG. 6 is a schematic view of a seal body of a guide post in accordance with an embodiment of the present invention;

FIG. 7 is a schematic view of a guide post seal according to an embodiment of the present invention;

FIG. 8 is a diagram of the construction and splicing of buoyancy tank elements to adjacent buoyancy tank elements according to one embodiment of the present invention;

FIG. 9 is a front-to-back docking diagram between adjacent buoyancy tank elements according to an embodiment of the present invention;

FIG. 10 is an enlarged partial view of the float body of one embodiment of the present invention;

Detailed Description

The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.

In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.

Taking a floating plate of an oil tank with the diameter of 20m as an example, the structural performance parameters and the like of the floating plate are specifically described, and the main buoyancy generated by the whole floating plate is an aluminum profile element with the middle of 100mm, namely the main liquid-intake depth of the floating plate.

As shown in fig. 1-3, in an embodiment of the present invention, the sealing structure 11 of the peripheral sidewall of the floating plate includes a wall cleaning scraping tooth 1121 on the first oil scraping brush 112, a special sealing rubber sleeve 1122, and a sealing rubber cloth elastic sealing spring plate 1123 to form the first oil scraping brush 112; the structure is added with a second oil scraping brush 113 aiming at the medium with high viscosity such as crude oil, and the second oil scraping brush consists of a second oil scraping tooth 1131, an annular flexible sealing rubber plate, a sealing spring piece supporting rib, an upward anti-blocking and tilting plate, a downward anti-blocking and tilting plate and a wall cleaning scraper plate on the flexible sealing plate, and plays roles of sealing and secondary oil scraping on the medium with high viscosity; the main sealing form of the side wall sealing structure 11 is composed of a telescopic air bag 114, the telescopic air bag 114 has a flexible radial telescopic function on the fixing of an air bag rod support 111, and a wall surface oil scraping brush 115 (a wear-resistant rubber composite layer) is arranged between the telescopic air bag 114 and the wall of the oil tank to form a flexible and rigid combined annular sealing effect with the telescopic air bag 114.

Spacing wheel 16 is installed to the below of lateral wall seal structure 11, spacing wheel 16's excircle is apart from the oil tank 50mm, when floating to 50mm, spacing wheel 16 can be touched to the lateral wall of oil tank, floating plate 1 will stop floating like this, and flexible gasbag 114 has the expansion and contraction nature on one side in addition, leaves 50mm and still in the expansion and contraction scope of flexible gasbag 114 design, just so guaranteed whole floating plate all around with the sealed effect of oil tank wall, still guaranteed that the floating plate can not touch the oil tank lateral wall.

When the floating plate floats up and down, the peripheral sealing ring generates sliding friction with the wall of the oil tank. Under the condition of lubricating friction, the sliding friction coefficient of the rubber and the steel is about 0.07-0.12, and the middle straight line is 0.1. The sealing ring is an inflatable comb-tooth air bag sealing ring, the tail part of the air bag is connected with a floating disc aluminum profile, the connection height is 100mm, after inflation, the pressure of the air bag is 0.12-0.14 Mpa, the height of the front end of the air bag is about 200mm, the contact height of the air bag and the wall of the oil tank is about half of the height of the front end of the air bag, and the result meets the requirement.

The side wall seal structure 11 is fixed to the pontoon body 12 by stainless steel bolts 116. A plurality of sealing rubber strips 17 are arranged between the buoyancy tank body 12 and the side wall sealing structure 11, as shown in the figure, a second layer of single sealing rubber strip 171 and the buoyancy tank element 121 of the buoyancy tank body 12 are arranged in a half staggered mode, and a first layer of single sealing rubber strip 172 and a third layer of single sealing rubber strip 173 are arranged in a quarter staggered mode and the single buoyancy tank element 121 are arranged in a quarter staggered mode. The maximum sealing effect can be achieved at the splicing position of the single sealing element by means of layer-by-layer dislocation.

In this embodiment, as shown in fig. 4 and 5, the floating plate 1 further includes a supporting leg 13, the supporting leg 13 is located on the lower side of the floating plate body 12, the supporting leg 13 is set to be fixedly connected to the floating plate body 12, an aluminum plate is disposed at the bottom of the supporting leg 13, the aluminum plate is set to be fixedly connected to the bottom of the supporting leg by welding, a rubber pad 131 is disposed at the lower end of the aluminum plate, and the aluminum plate and the rubber pad 131 are set to be fixedly connected by a bolt, so that the rubber pad is installed, and soft contact with the floating. In another embodiment, the floating plate further comprises supporting legs, the supporting legs are located at the bottom of the oil tank, the supporting legs are arranged to be fixedly connected with the bottom of the oil tank, the upper portion of the supporting legs is provided with an aluminum plate, the aluminum plate is arranged to be fixedly connected with the upper portion of the supporting legs through welding, a rubber pad is arranged at the upper end of the aluminum plate, the aluminum plate and the rubber pad are arranged to be fixedly connected through bolts, the rubber pad is installed, and soft contact with the floating plate is achieved.

In this embodiment, as shown in fig. 6 and 7, the floating plate 1 further includes a guide post sealing body 14, the guide post sealing body 14 includes a sealing rubber 141, a fixed cylinder 142, and a sealing rubber cover 143, an outer side of the sealing rubber 141 and the fixed cylinder 142 are configured to be fixedly connected by a bolt 144, an end of the fixed cylinder 142 is configured to be connected to the floating plate body 12 by welding, an inner side of the sealing rubber 141 is configured to be connected to the guide post 15 in a sliding sealing manner, the sealing rubber cover 143 is configured to wrap the sealing rubber 141, and the sealing rubber cover 143 is fixedly connected to the fixed cylinder 142. The guide post sealing body 14 includes a plurality of sealing rubbers 141, and the plurality of sealing rubbers 141 are disposed to surround the guide post 15 in a spaced arrangement.

In another embodiment, the floating plate 1 further includes a guide pillar sealing body 24, the guide pillar sealing body 24 includes an eccentric plate 241, an air bag 242, and a fixed cylinder 243, the air bag 242 is disposed between the eccentric plate 241 and the fixed cylinder 243, the inner side of the eccentric plate 241 is disposed to be slidably and sealingly connected with the guide pillar 15, and the end of the fixed cylinder 243 is disposed to be connected with the floating plate body 12 by welding. The guide post sealing body 24 comprises a plurality of eccentric plates 241, the eccentric plates 241 are arranged to form an annular sealing body in a stacking mode, the annular sealing body is arranged to surround the guide posts 15 in an interval arrangement mode, a buffering effect is achieved when the circular disc is impacted, and a force unloading effect is achieved on the impact of the guide posts.

As shown in fig. 5 and 8-10, the floating plate 1 comprises a floating plate body 12, a side wall sealing structure 11 and supporting legs 13, wherein the floating plate body 12 comprises a floating plate element 121, the floating box element 121 has left and right splicing sides, the left and right splicing sides have a first side 1211 and a second side 1212, the first side 1211 has a hook-shaped flange 1213 and a groove 1214 capable of accommodating the hook-shaped flange, the second side 1212 has the hook-shaped flange and the groove capable of accommodating the hook-shaped flange, and the floating box element 121 and the adjacent floating box elements thereof are configured to be spliced on the left and right splicing sides by the matching of the hook-shaped flange and the groove; the assembly process is simple, the two sectional materials are directly clamped into the clamping grooves, and a labyrinth type annular seal can be formed between the sectional materials without adding other processes, so that the transverse movement and the transverse movement of the two buoyancy tank elements are limited, and the problem that oil with the transverse section of the sectional material volatilizes through a gap is effectively solved. The buoyancy tank element 121 has front and rear spliced sides where the buoyancy tank element 121 and its adjacent buoyancy tank elements are sealed by i-shaped rubber 1215. Reinforcing ribs are added on the upper side and the lower side of the floating disc body 12, a first reinforcing rib 122 is arranged on the upper side of the floating disc body 12, a second reinforcing rib 123 is arranged on the lower side of the floating disc body 12, and the first reinforcing rib 122 and the second reinforcing rib 123 are arranged to be connected with the floating disc body 12 through bolts 124. The reinforcing ribs are rectangular aluminum profiles, aluminum tubes 125 are sleeved outside the bolts 124, and the bolts 124 and the aluminum tubes 125 form sealing through welding. A floating disc body. The aluminum tube 125 has a diameter of 25mm and a thickness of 7.5mm, and the bolt 124 is of type M10X 240.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The aluminum profile floating plate is characterized by comprising a floating plate body, wherein the floating plate body comprises a plurality of floating box elements, and the floating box elements are provided with cavities of multi-cabin structures.

2. The aluminum profile floating plate according to claim 1, further comprising a side wall sealing structure, wherein the side wall sealing structure comprises a wall surface oil scraping brush connected with the telescopic air bag, and the wall surface oil scraping brush forms an annular seal with the wall surface under the action of the telescopic air bag.

3. An aluminium profile floating disc as claimed in claim 2, wherein the telescopic air bag comprises an air bag bellows and a radial support rod, the air bag bellows being arranged to be telescopic in the direction of the radial support rod.

4. The aluminum profile floating plate according to claim 3, wherein the air pressure in the telescopic air bag is 0.12-0.14 MPa.

5. The aluminum profile floating disc as claimed in claim 2, wherein limiting wheels are arranged below the side wall sealing structures.

6. The aluminum profile floating disc as claimed in claim 3, wherein the side wall sealing structure further comprises a first oil scraping brush and a second oil scraping brush, the first oil scraping brush comprises first oil scraping teeth, a sealing rubber sleeve and a sealing rubber cloth, the second oil scraping brush comprises second oil scraping teeth and a sealing rubber plate, and the first oil scraping brush is positioned on the upper layer of the second oil scraping brush.

7. The aluminum profile floating plate according to claim 1, further comprising supporting legs, wherein the supporting legs are located on the lower side of the floating plate body and are fixedly connected with the floating plate body, an aluminum plate is arranged at the bottom of the supporting legs and is fixedly connected with the bottom of the supporting legs through welding, a rubber pad is arranged at the lower end of the aluminum plate, and the aluminum plate and the rubber pad are fixedly connected through bolts.

8. The aluminum profile floating plate according to claim 1, further comprising supporting legs, wherein the supporting legs are located at the bottom of an oil tank, the supporting legs are fixedly connected with the bottom of the oil tank, the upper portion of the supporting legs is provided with an aluminum plate, the aluminum plate is fixedly connected with the upper portion of the supporting legs through welding, the upper end of the aluminum plate is provided with a rubber pad, and the aluminum plate and the rubber pad are fixedly connected through bolts.