WO2020015253A1

WO2020015253A1 - Aluminum profile floating roof

Info

Publication number: WO2020015253A1
Application number: PCT/CN2018/114381
Authority: WO
Inventors: 李兴强; 胡升
Original assignee: 广东世华设备技术有限公司
Priority date: 2018-07-17
Filing date: 2018-11-07
Publication date: 2020-01-23

Abstract

An aluminum profile floating roof (1). The floating roof (1) comprises a floating roof body (12); the floating roof body (12) comprises a plurality of float elements (121); and the float element (121) is provided with a multi-cabin structural cavity body. The floating roof (1) further comprises a sidewall sealing structure (11); the sidewall sealing structure (11) comprises a wall surface oil scraping brush (115) connected to a telescopic airbag (114); and the wall surface oil scraping brush (115) forms an annular seal with the wall surface under the action of the telescopic airbag (114).

Description

Aluminum profile floating disc Ranch

技术领域Technical field

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

背景技术Background technique

The floating disk is generally composed of a floating disk body, a sealing device, a check valve, and an electrostatic discharge device. The floating disk floats on the liquid storage surface, there is an annular space between the floating disk body and the tank wall, and there is a sealing element in the annular space. The floating disk body and the sealing element together form a covering layer on the liquid storage surface. As the liquid storage floats up and down, the storage liquid in the tank is completely separated from the atmosphere, and is not affected by external factors such as wind and rain, which reduces the storage of liquid storage. The evaporation loss in the process reduces the air pollution and is easy to ensure the quality and safety of the stored liquid. Therefore, the floating tray is the safest, most economical and simplest structural form to reduce the evaporation loss of the material of the fixed roof storage tank.

At present, the common storage tank floating trays at home and abroad are mainly pontoon type and full liquid type. In China, the floating disc type used for a long time is mainly the pontoon type. Various equipment manufacturers have researched the full liquid type but have not developed it in depth.

The fully wetted floating plate is mainly composed of the main beam, the tank, the pillar and the peripheral seal. According to different requirements, openings and auxiliary parts with different functions are added. The full-liquid floating tray is spliced by multiple tank plates. In use, the lower part of the floating block is immersed in the liquid surface, and the entire hollow floating block floats on the liquid surface, which isolates the upper gas phase from the lower liquid phase space. Here comes the effect of covering the enclosed liquid.

The fully wetted floating plate has the characteristics of high safety, energy saving and environmental protection, stable operation, and simple construction. The overall structure of the floating plate is strong, the structure is compact, and it has good seismic resistance and convenient maintenance. Compared with floating trays, decks, pontoons and other types of floating trays, the full-liquid floating trays have comprehensive technical improvements, avoiding single buoyancy units and eliminating design features such as oil and gas space.

There are many advantages to fully wetted floaters, but they also have the following problems:

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

2. The cavity needs to be welded. Due to the long length of a single component, continuous welding processes are required.

3. On-site welding molding cavity cannot be thermally aged, and the internal stress generated after welding of the floating box cannot be eliminated, resulting in weakening of the structural strength;

4. The surface of the floating tank after welding is poor, and it is easy to crack. Because only a single cavity is formed, the medium easily enters the entire floating disk;

5. Components are simply spliced and assembled between components, and the gap is too large after assembly, which is easy to volatile oil medium;

6. Complex on-site installation, which requires on-site welding and assembly, many processes and low efficiency;

7. Welding is used, and there are many welds. Due to the impact of welding technology, defects in the welds cause local leakage of the floating disk, which may cause sinking;

8. The lifting of the floating disk in the storage tank is guided by the column. If the center of gravity of the floating disk is slightly shifted, it will cause a chuck and lead to sinking.

Therefore, those skilled in the art are committed to developing an aluminum profile floating tray to solve the problem of material evaporation from the fixed roof storage tank.

发明内容Summary of the invention

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

To achieve the above object, the present invention provides an aluminum profile floating plate. The floating plate includes a floating plate body, the floating plate body includes a plurality of floating box elements, and the floating box element has a multi-cavity structure cavity.

Further, the floating disk further includes a side wall sealing structure. The side wall sealing structure includes a wall wiper connected to the telescopic airbag. The wall wiper forms an annular seal between the wall and the wall under the action of the telescopic airbag.

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

Further, the air pressure in the telescopic airbag is 0.12 to 0.14Mpa.

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

Further, the side wall sealing structure further includes a first wiper brush and a second wiper brush. The first wiper brush includes a first wiper tooth, a sealing rubber sleeve and a sealing rubber cloth, and a second wiper brush. Including the second wiper and the sealing rubber plate, the first wiper is located on the upper layer of the second wiper.

Further, the floating plate further includes a supporting foot, which is located on the lower side of the floating plate body. The supporting foot is fixedly connected to the floating plate body. The bottom of the supporting foot has an aluminum plate. The aluminum plate is provided to the bottom of the supporting foot by welding. The rubber pad is fixedly connected at the lower end of the aluminum plate, and the aluminum plate and the rubber pad are fixedly connected by bolts.

Further, the floating plate further includes a support foot located at the bottom of the oil tank, the support foot is provided to be fixedly connected to the bottom of the oil tank, an upper part of the support foot is provided with an aluminum plate, and the aluminum plate is provided to be fixedly connected to the upper part of the support foot by welding, The upper end of the aluminum plate is provided with a rubber pad, and the aluminum plate and the rubber pad are provided to be fixedly connected by bolts.

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

(1) The cavity of a single floating box element is designed as a multi-cabin structure, which cracks the surface, which greatly reduces the buoyancy of the floating disk;

(2) Designing a safety wheel around the floating disk not only achieves the buffer effect, but also avoids the phenomenon of chucks;

(3) The oil tank wall seal around the floating disc is designed with a retractable airbag or an airbag bellows. Different wall cleaning brushes are designed for different oil media. In addition, the design of the safety wheel forms the sealing effect of the entire floating disc and the tank wall. It will ensure that the floating plate does not touch the side wall of the oil tank.

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

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side wall sealing structure diagram of a specific embodiment of the present invention; FIG.

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

3 is a sealing structure diagram between a side wall sealing structure and a floating disc according to a specific embodiment of the present invention;

FIG. 4 is a structural diagram of a floating disk and a supporting foot installation according to a specific embodiment of the present invention; FIG.

5 is a support foot mounting structure according to a specific embodiment of the present invention;

6 is a structural view of a guide post seal body according to a specific embodiment of the present invention;

7 is a structural view of a guide post seal body according to a specific embodiment of the present invention;

8 is a floating box element structure and a splicing diagram with adjacent floating box elements according to a specific embodiment of the present invention;

9 is a front-to-back docking diagram between adjacent floating tank elements according to a specific embodiment of the present invention;

FIG. 10 is a partially enlarged view of a floating disk body according to a specific embodiment of the present invention; FIG.

具体实施方式detailed description

The following describes the preferred embodiments of the present invention with reference to the accompanying drawings, to make the technical content more clear and easy to understand. The present invention can be embodied by many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in the text.

In the drawings, components having the same structure are denoted by the same numerals, and components having similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of parts is exaggerated in some places in the drawings.

Taking the floating disk of a 20m diameter oil tank as an example, the structural performance parameters of the floating disk are specifically introduced. The main buoyancy generated by the entire floating disk is the middle 100mm aluminum profile element, which is the main liquid depth of the floating disk.

A specific embodiment of the present invention is shown in Figs. 1-3. The side wall sealing structure 11 of the floating plate includes the wall cleaning teeth 1121 on the first wiper brush 112, the special sealing rubber sleeve 1122, and the elasticity of the sealing rubber cloth. The sealing spring plate 1123 constitutes the first wiper brush 112. For the viscous medium such as crude oil, this structure adds a second wiper brush 113. The second wiper brush includes second wiper teeth 1131 and a ring-shaped flexible sealing rubber. Plate, sealing spring sheet support ribs, and upward anti-seismic warpage plate, downward anti-seismic warpage plate, and clean wall scraper on the flexible dense plate, which plays a role of sealing and secondary oil scraping on the medium with high viscosity; The main sealing form of the wall sealing structure 11 is composed of a telescopic airbag 114. The telescopic airbag 114 has a flexible radial telescopic function on the airbag rod holder 111. Between the telescopic airbag 114 and the tank wall, a wall scraper 115 (resistant (Rubber-rubber composite layer), and the ring-shaped sealing effect combined with the flexibility and rigidity of the telescopic airbag 114.

A limiting wheel 16 is installed below the side wall sealing structure 11. The outer circle of the limiting wheel 16 is 50 mm away from the oil tank. When floating to 50 mm, the side wall of the oil tank will touch the limiting wheel 16 so that the floating disk 1 will Stop floating, while the other side of the telescopic airbag 114 has expansion and contraction, leaving 50mm from the expansion and contraction range of the telescopic airbag 114 design, so as to ensure the sealing effect of the entire floating disk around the tank wall, and also ensure the floating The pan does not touch the side wall of the tank.

When the floating disk floats up and down, the surrounding sealing ring and the tank wall produce sliding friction. Under the condition of lubricating friction, the sliding friction coefficient between rubber and steel is about 0.07 ~ 0.12, which is 0.1 in the middle. The sealing ring uses an inflatable comb airbag sealing ring. The tail of the airbag is joined to the aluminum plate of the floating disc with a joint height of 100mm. After inflation, the pressure of the airbag is 0.12 ~ 0.14Mpa, the height of the front end of the airbag is about 200mm, and the airbag and the tank wall The contact height is about half of the height of the front end of the airbag, and the result meets the requirements.

The side wall sealing structure 11 is fixed on the floating tank body 12 by stainless steel bolts 116. There are multiple sealing rubber strips 17 between the floating tank body 12 and the side wall sealing structure 11. As shown in the figure, the second single sealing rubber strip 171 and the floating tank element 121 of the floating disc body 12 are installed half staggered from each other. The single-layer sealing rubber strip 172 and the third-layer single sealing rubber strip 173 and the single floating tank element 121 are installed one quarter apart from each other. Through the dislocation of layers, the maximum sealing effect can be achieved at the joint of a single seal.

In this embodiment, as shown in FIGS. 4 and 5, the floating disk 1 further includes support legs 13. The support legs 13 are located on the lower side of the floating disk body 12. The supporting legs 13 are fixedly connected to the floating disk body 12. 13 has an aluminum plate at the bottom. The aluminum plate is set to be fixedly connected to the bottom of the support foot by welding. The lower end of the aluminum plate is provided with a rubber pad 131. The aluminum plate and the rubber pad 131 are fixedly connected by bolts. The rubber pad is installed to realize the floating plate. Soft touch. In another specific embodiment, the floating plate further includes a supporting foot, which is located at the bottom of the oil tank. The supporting foot is fixedly connected to the bottom of the oil tank. The upper part of the supporting foot is provided with an aluminum plate. The aluminum plate is provided with the supporting foot by welding. The upper part of the aluminum plate is fixedly connected. The upper end of the aluminum plate is provided with a rubber pad. The aluminum plate and the rubber pad are set to be fixedly connected by bolts. The rubber pad is installed to realize soft contact with the floating disk.

In this embodiment, as shown in FIGS. 6 and 7, the floating disk 1 further includes a guide post seal body 14, and the guide post seal body 14 includes a sealing rubber 141, a fixing cylinder 142, and a sealing rubber cover 143. The cylinder 142 is fixedly connected by bolts 144. The end of the fixed cylinder 142 is connected to the floating plate body 12 by welding. The inner side of the sealing rubber 141 is provided to slide and seal the guide post 15. The sealing rubber cap 143 is It is arranged to wrap the sealing rubber 141, and the sealing rubber cover 143 is fixedly connected to the fixing cylinder 142. The guide post seal body 14 includes a plurality of seal rubbers 141, and the plurality of seal rubbers 141 are arranged to surround the guide post 15 in a spaced-apart manner.

In another embodiment, the floating disk 1 further includes a guide post seal body 24, which includes an eccentric plate 241, an air bag 242, and a fixed cylinder 243. The air bag 242 is provided between the eccentric plate 241 and the fixed cylinder 243. The inner side of 241 is provided to be slidably sealed to the guide post 15, and the end of the fixed cylinder 243 is provided to be connected to the floating plate body 12 by welding. The guide post seal body 24 includes a plurality of eccentric plates 241. The plurality of eccentric plates 241 are configured to form an annular seal body in a superimposed manner. The annular seal body is provided to surround the guide post 15 in a spaced-apart manner and is impacted on the disc. It acts as a buffer when it plays a role of unloading the impact of the guide column.

As shown in FIGS. 5 and 8-10, the floating plate 1 includes a floating plate body 12, a side wall sealing structure 11 and a supporting leg 13, wherein the floating plate body 12 includes a floating plate element 121, and the floating box element 121 has left and right splicing sides. The left and right splicing sides have a first side edge 1211 and a second side edge 1212. The first side edge 1211 has a hook flange 1213 and a groove 1214 capable of receiving the hook flange. The second side edge 1212 has a hook flange and A groove capable of accommodating hook-shaped flanges. The floating box element 121 and its adjacent floating box element are set to be spliced on the left and right splicing sides through the cooperation of the hook-shaped flange and the groove; the assembly process is simple, and the two profiles are directly clicked into The slot, without adding other processes, can form a labyrinth ring seal between the profile and the profile, which limits the lateral and lateral movement of the two floating box elements, and effectively solves the transverse oil cross-section of the profile. Gap evaporation problem. The floating box element 121 has front and rear splicing sides, and the floating box element 121 and its adjacent floating box elements are sealed by I-shaped rubber 1215 at the front and rear splicing sides. The upper and lower sides of the floating plate body 12 are provided with reinforcing ribs. The upper side of the floating plate body 12 has a first reinforcing rib 122. The lower side of the floating plate body 12 has a second reinforcing rib 123. The first reinforcing rib 122 and the second reinforcing rib. 123 is provided to be connected to the floating plate body 12 by a bolt 124. The reinforcing rib is a rectangular aluminum profile, and an aluminum pipe 125 is sleeved on the outside of the bolt 124, and the bolt 124 and the aluminum pipe 125 are sealed by welding. Floating plate body. The aluminum pipe 125 has a diameter of 25 mm and a thickness of 7.5 mm, and the type of the bolt 124 is M10X240.

The preferred embodiments of the present invention have been described in detail above. It should be understood that the ordinary technology in the art can make many modifications and changes according to the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the technical field based on the concept of the present invention through logic analysis, reasoning, or limited experiments based on the prior art should fall within the protection scope determined by the claims.

Claims

An aluminum profile floating plate is characterized in that the floating plate includes a floating plate body, the floating plate body includes a plurality of floating box elements, and the floating box elements have a multi-cavity structure cavity. Ranch
The aluminum profile floating plate according to claim 1, wherein the floating plate further comprises a side wall sealing structure, the side wall sealing structure comprising a wall scraper brush connected to the telescopic airbag, and the wall scraper brush Under the action of the telescopic airbag, an annular seal is formed with the wall surface.
The aluminum profile floating disk according to claim 2, wherein the telescopic airbag comprises an airbag bellows and a radial support rod, and the airbag bellows is configured to be expandable and contractible in a direction of the radial support rod.
The aluminum profile floating disk according to claim 3, wherein the air pressure in the telescopic airbag is 0.12 to 0.14Mpa.
The aluminum profile floating disk according to claim 2, wherein a limiting wheel is disposed below the side wall sealing structure.
The aluminum profile floating disk according to claim 3, wherein the side wall sealing structure further comprises a first wiper brush and a second wiper brush, and the first wiper brush includes a first wiper tooth , Sealing rubber sleeve and sealing rubber cloth, The second wiper brush includes a second wiper tooth and a sealing rubber plate, and the first wiper brush is located on an upper layer of the second wiper brush.
The aluminum profile floating plate according to claim 1, wherein the floating plate further comprises a supporting foot, the supporting foot is located on a lower side of the floating plate body, and the supporting foot is configured to be fixedly connected to the floating plate body An aluminum plate is provided at the bottom of the support foot, and the aluminum plate is provided to be fixedly connected to the bottom of the support foot by welding. A rubber pad is provided at the lower end of the aluminum plate, and the aluminum plate and the rubber pad are provided to pass through. Bolted connection.
The aluminum profile floating plate according to claim 1, wherein the floating plate further comprises a support foot, the support foot is located at the bottom of the oil tank, the support foot is configured to be fixedly connected to the bottom of the oil tank, the The upper part of the support foot is provided with an aluminum plate, which is provided to be fixedly connected to the upper portion of the support foot by welding. The upper end of the aluminum plate is provided with a rubber pad, and the aluminum plate and the rubber pad are provided to be fixedly connected by bolts. .