WO2020015254A1

WO2020015254A1 - Novel aluminum floating roof

Info

Publication number: WO2020015254A1
Application number: PCT/CN2018/114384
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 floating roof, comprising a body (12). The body (12) comprises a plurality of pontoon elements (121). The pontoon element (121) is formed from an aluminum material in a single extrusion molding process. The plurality of pontoon elements (121) form an engagement connection with one another. The pontoon element (121) has left and right joining sides comprising a first side (1211) and a second side (1212). The first side (1211) has a hook-shaped protrusion (1213). The second side (1212) has a recess (1214) capable of accommodating the hook-shaped protrusion (1213). The pontoon elements (121) are configured to join with adjacent pontoon elements (121) by means of cooperation between the hook-shaped protrusions (1213) and the recesses (1214) at the left and right sides thereof.

Description

Novel aluminum profile floating disc Ranch

Technical field

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

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 it 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 float tank components, but they also have the following problems:

1. The single-profile floating box element has no cavity and cannot form the buoyancy of the floating disk;

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 internal stress generated after welding of floating box components cannot be eliminated, resulting in weakening of structural strength;

4. The surface of the floating tank component is poor after welding, 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.

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.

In order 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 element elements, and the floating box elements are configured to be extruded and molded from aluminum profiles at one time.

Further, a plurality of floating tank elements are arranged to be connected by a snap.

Further, the floating box element has left and right splicing sides, the left and right splicing sides have first and second sides, the first side has a hook flange, and the second side has a groove that can accommodate the hook flange, The floating box element and its adjacent floating box element are arranged to be spliced on the left and right splicing sides through the cooperation of the hook-shaped flange and the groove.

Further, the floating box element has front and rear splicing sides, and the floating box element and its adjacent floating box element are sealed by I-shaped rubber at the front and rear splicing sides.

Further, the upper side of the floating plate body has a first reinforcing rib, and the lower side of the floating plate body has a second reinforcing rib, and the first reinforcing rib and the second reinforcing rib are arranged to be connected to the floating plate main body by bolts.

Further, the reinforcing rib is a rectangular aluminum profile, an aluminum pipe is sleeved on the outer side of the bolt, and the bolt and the aluminum pipe are sealed by welding.

Further, the floating disk further includes a guide post seal body, the guide post seal body includes a sealing rubber, a fixing cylinder, and a sealing rubber cover, an outer side of the sealing rubber and the fixing cylinder are provided to be fixedly connected by bolts, and an end portion of the fixing cylinder is provided as It is connected to the floating disc body by welding. The inner side of the sealing rubber is set to slide and seal with the guide post. The sealing rubber cap is set to wrap the sealing rubber. The sealing rubber cap is fixedly connected to the fixed cylinder.

Further, the guide post seal body includes a plurality of seal rubbers, and the plurality of seal rubbers are arranged to surround the guide post in a spaced arrangement manner.

Further, the floating disk further includes a guide post seal body, the guide post seal body includes an eccentric plate, an air bag, and a fixed cylinder, and the air bag is provided between the eccentric plate and the fixed cylinder, and the inner side of the eccentric plate is configured to be slidably sealed with the guide post, The end of the fixed cylinder is arranged to be connected to the floating plate body by welding.

Further, the guide post seal body includes a plurality of eccentric plates, the plurality of eccentric plates are configured to form an annular seal body in a superimposed manner, and the annular seal body is provided to surround the guide post in a spaced manner.

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

(1) The floating tray box is extruded from aluminum ingots at one time, without subsequent welding of the cavity;

(2) After the floating tray box is extruded, there is no need for on-site welding, and the produced product is subjected to thermal aging treatment, which greatly eliminates the internal stress of the profile;

(3) The floating plate body has reinforcing ribs, which greatly improves the bending and tensile capacity of the entire floating plate;

(4) Reduce on-site installation procedures and improve assembly efficiency: Eliminate the welding process of the main components of the full-fluid floating tray, and only need snap-in assembly, which greatly improves the on-site installation and assembly efficiency;

(5) The snap-on installation is adopted between the floating disk components, forming a circular labyrinth seal;

(6) Adopting the design of the guide column sealing body, the design of the eccentric plate and the airbag or the design of the sealing rubber, the buffer effect is achieved, and the chuck phenomenon is avoided.

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.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural diagram of a floating disk and a supporting foot installation according to a specific embodiment of the present invention; FIG.

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

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

FIG. 4 is a partially enlarged view of a floating disk body according to a specific embodiment of the present invention; FIG.

5 is a structural view of a guide post seal body 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 diagram of a side wall seal according to a specific embodiment of the present invention;

8 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. 9 is a structural diagram of a supporting foot installation according to a specific embodiment of the present invention; FIG.

FIG. 10 shows an inflatable comb airbag seal ring according to a specific embodiment of the present invention.

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.

A specific embodiment of the present invention is shown in FIG. 1-4. The floating disk 1 includes a floating disk body 12, a side wall sealing structure 11, and a supporting foot 13. The floating disk body 12 includes a floating disk element 121 and a floating tank 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 The hook-shaped flange and the groove capable of accommodating the hook-shaped flange are provided. The floating box element 121 and the adjacent floating box element are arranged to be spliced on the left and right splicing sides through the cooperation of the hook-shaped flange and the groove; The two profiles are directly snapped into the slot, without the need to add other processes, a labyrinth ring seal can be formed between the profiles and the profiles, which limits the lateral and lateral movement of the two floating tank elements, and effectively solves the problem. The problem of volatilization of oil in the cross section of the profile through the gap. 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.

In this embodiment, as shown in FIGS. 5 and 6, the floating disk 1 further includes a guide post seal body 14. 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.

In another specific embodiment of the present invention, as shown in FIG. 7 and FIG. 8, the side wall sealing structure 11 around the floating plate includes the wall cleaning teeth 1121 on the first oil scraping brush 112, the special sealing rubber sleeve 1122, and the sealing rubber. The cloth elastic seal 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 is composed of the second wiper tooth 1131 and is ring-shaped. Composed of sealing rubber plate, sealing spring sheet support ribs, and upward anti-seizing warpage plate, downward anti-seating warpage plate, and wall-cleaning scraper on the flexible dense plate, which acts as a seal and secondary oil scraping for the medium with high viscosity. The main sealing form of the side wall sealing structure 11 is composed of a telescopic airbag 114. The telescopic airbag 114 has a flexible radial telescopic function on the fixation of the airbag rod holder 111. Between the telescopic airbag 114 and the tank wall, a wall scraper 115 is installed. (Abrasion-resistant rubber compound layer), combined with the flexible and rigid ring seal effect 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.

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 a specific embodiment of the present invention, as shown in FIGS. 1 and 9, the floating plate 1 further includes support feet 13, which are located on the lower side of the floating plate body 12, and the supporting feet 13 are arranged to be in contact with the floating plate body 12. Fixed connection. The bottom of the support foot 13 has an aluminum plate. 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 achieve soft contact with the floating disk. 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.

As shown in FIG. 10, 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 adopts an inflatable comb-shaped airbag sealing ring. The internal pressure of the airbag is 0.12 ~ 0.14Mpa. The tail of the airbag is joined with the aluminum profile of the floating disk. The joint height is 100mm. After inflation, the front end of the airbag is about 200mm. The contact height is about half of the height of the front end of the airbag, and the result meets the requirements.

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 are configured to be extruded and molded from aluminum profiles at one time. Ranch
The aluminum profile floating plate according to claim 1, wherein the plurality of floating box elements are arranged to be connected by a snap.
The aluminum profile floating disk according to claim 2, wherein the floating box element has left and right spliced sides, the left and right spliced sides have first and second sides, and the first side has hook-shaped protrusions Edge, the second side has a groove capable of accommodating the hooked flange, and the floating tank element and its adjacent floating tank element are arranged to cooperate with the groove through the hooked flange The left and right splicing sides are spliced.
The aluminum profile floating plate according to claim 3, wherein the floating box element has front and rear splicing sides, and the floating box element and its adjacent floating box element are sealed at the front and rear splicing sides by I-shaped rubber.
The aluminum profile floating plate according to claim 1, wherein an upper side of the floating plate body has a first reinforcing rib, and a lower side of the floating plate body has a second reinforcing rib. The second reinforcing rib is configured to be connected to the floating plate body by a bolt.
The aluminum profile floating plate according to claim 5, wherein the reinforcing rib is a rectangular aluminum profile, an aluminum pipe is sleeved on the outside of the bolt, and the bolt is sealed with the aluminum pipe by welding.
The aluminum profile floating plate according to claim 1, wherein the floating plate further comprises a guide post seal body, the guide post seal body including a sealing rubber, a fixing cylinder, and a sealing rubber cover, and an outer side of the sealing rubber and The fixed cylinder is configured to be fixedly connected by bolts, an end of the fixed cylinder is configured to be connected to the floating plate body by welding, and an inner side of the sealing rubber is configured to be in a sliding seal connection with a guide post. A rubber cover is provided to wrap the sealing rubber, and the sealing rubber cover is fixedly connected to the fixing cylinder.
The aluminum profile floating disk according to claim 7, wherein the guide post seal body includes a plurality of seal rubbers, and the plurality of seal rubbers are arranged to surround the guide posts in a spaced-apart manner.
The aluminum profile floating plate according to claim 1, wherein the floating plate further comprises a guide post seal body, the guide post seal body comprising an eccentric plate, an air bag, and a fixed cylinder, and the air bag is provided on the eccentric plate and Between the fixed cylinders, the inner side of the eccentric plate is configured to be slidably sealed to the guide post, and an end portion of the fixed cylinder is configured to be connected to the floating disk body by welding.
The aluminum profile floating disk according to claim 9, wherein the guide post sealing body comprises a plurality of eccentric plates, the plurality of eccentric plates are arranged to form an annular sealing body by superimposing the annular sealing body, It is arranged to surround the guide posts in a spaced arrangement.