A system for solving the wall loss of floating roof storage tank

Abstract

The present application relates to the field of governing floating roof tank wall loss sealing system, and more particularly to solve the floating roof tank wall loss system, including the tank, the wall sealing structure, the tank is internally provided with the floating disc, the wall sealing structure includes the sealing band, the pressing plate, the sealing band, the sealing collection box, the sealing collection box is fixedly connected around the floating disc through the bolt and the nut, the sealing collection box is provided with the sliding wheel assembly, the sliding wheel assembly includes the tripod, the connecting rod fixedly connected with the tripod, the pulley rotatably connected on the connecting rod, the tripod is fixedly connected on the sealing collection box, the sealing collection box upper end is provided with the opening, and the sealing band is arranged in the sealing collection box, the present application has simple structure, and effectively solves the problem that the secondary sealing scraper or tongue-shaped scraper can only be arranged at the peripheral sealing place on the market in the background art to solve the residual oil product attached to the tank wall during the falling process of the floating disc, but the treatment effect always cannot reach the expected requirement.

Description

Technical Field

[0001] This invention relates to the field of sealing systems for mitigating wall adhesion losses in floating roof tanks, and more particularly to systems for solving wall adhesion losses in floating roof tanks. Background Technology

[0002] Floating roof tanks are mainly used to store petrochemical products. Because petrochemical products are volatile, they easily evaporate into the air, causing environmental pollution and resource waste. According to the 2015-104 Working Guidelines of the Environmental Protection Office, VOCs emissions from floating roof tanks mainly include edge seal losses, floating roof accessory losses, disc seal losses, and wall adhesion losses. Among these, wall adhesion losses are considered operational losses and are a problem that cannot be effectively solved nationwide or globally. The only solution is to install secondary sealing scrapers or tongue-shaped scrapers at the perimeter seals to address oil residues adhering to the tank wall during the floating roof's descent. However, the treatment effect has consistently fallen short of expectations. Therefore, the market needs a new type of wall adhesion loss sealing device for zero emissions from floating roof tanks, achieving VOCs control. Summary of the Invention

[0003] The present invention provides a system for solving the problem of oil residue adhering to the wall of floating roof tanks. The system has a simple structure and effectively solves the problem in the prior art where secondary sealing scrapers or tongue-shaped scrapers can only be installed at the perimeter sealing point to solve the problem of oil residue adhering to the tank wall during the descent of the floating roof, but the treatment effect has never met the expected requirements.

[0004] To address the aforementioned problems, the present invention proposes the following technical solution: a system for resolving wall-hanging losses in floating roof tanks, comprising a tank and a wall-hanging sealing structure. A floating roof is installed inside the tank. The wall-hanging sealing structure includes a sealing strip, a pressure plate, and a sealing collection box. The sealing collection box is fixedly connected to the floating roof by bolts and nuts. A sliding wheel assembly is installed on the sealing collection box. The sliding wheel assembly includes a tripod, a connecting rod fixedly connected to the tripod, and a pulley rotatably connected to the connecting rod. The tripod is fixedly connected to the sealing collection box. An opening is provided at the upper end of the sealing collection box. The sealing strip is disposed inside the sealing collection box. A tongue-shaped scraper is fixedly connected to one side of the sealing collection box, close to the inner wall of the tank. The pressure plate is located on one side of the inner wall of the tank.

[0005] The sliding wheel assembly consists of four parts, namely sliding wheel assembly one, sliding wheel assembly two, sliding wheel assembly three, and sliding wheel assembly four. Sliding wheel assembly one and sliding wheel assembly two are arranged opposite each other and are located on both sides of the opening of the sealed collection box. Sliding wheel assembly three is located at the top of the sealed collection box, and sliding wheel assembly four is located on one side of the inner wall of the storage tank.

[0006] The other end of the sealing strip passes between sliding wheel assembly one and sliding wheel assembly two, goes around sliding wheel assembly two and passes sequentially between sliding wheel assembly four and the inner wall of the tank, closely adhering to the inner wall of the tank, and is fixedly connected to the bottom of the tank between the tongue scraper and the inner wall of the tank.

[0007] The pressure plate is close to the sealing strip.

[0008] The steps for use are as follows: Fill the storage tank with the liquid and place the floating plate; install the sealing collection box around the floating plate and fix it with M10 bolts; connect one end of the sealing strip to the sealing strip collection box and the other end to the bottom of the storage tank through the sealing strip to form a complete annular sealing system; use the pressure plate to tightly fit the sealing strip to the tank wall, so that the part of the sealing strip below the pressure plate is tightly fitted to the tank wall.

[0009] Due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0010] This invention involves installing a sealing strip around the floating roof, connecting it to the bottom of the tank. This circumferential sealing strip traps residual volatile organic compounds (VOCs) within a sealed space, preventing them from escaping into the air and achieving VOCs treatment. The wall-mounted sealing system moves up and down with the floating roof. The sealing strip is made of a high-molecular-weight material that is oil-resistant, corrosion-resistant, and resistant to various acids, alkalis, and organic solvents. Other components are made of stainless steel or similar materials, exhibiting stability and corrosion resistance. The entire sealing system has a service life of up to 20 years. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of the floating roof operation state of a floating roof tank wall-hanging loss system according to the present invention.

[0012] Figure 2 This is a partially enlarged structural schematic diagram of a system for solving the wall-hanging loss of floating roof tanks according to the present invention.

[0013] Figure 3 This is a structural schematic diagram of the floating roof of a floating roof storage tank system for solving the problem of floating roof tank wall adhesion loss when the floating roof lands.

[0014] Figure 4 This is a partial structural diagram of a system for solving the wall-hanging loss of floating roof tanks according to the present invention.

[0015] (1. Storage tank; 2. Floating roof; 3. Sealing strip; 4. Pressure plate; 5. Sealed collection box; 6. Triangular frame; 7. Connecting rod; 8. Pulley; 9. Tongue scraper) Detailed Implementation

[0016] The invention will be further described below with reference to the accompanying drawings.

[0017] according to Figure 1As shown: This invention provides a system for solving the wall-hanging loss of floating roof storage tanks: It includes a storage tank 1 and a wall-hanging sealing structure. A floating roof 2 is installed inside the storage tank 1. The wall-hanging sealing structure includes a sealing strip 3, a pressure plate 4, and a sealing collection box 5. The sealing collection box 5 is fixedly connected to the floating roof 2 by bolts and nuts. A sliding wheel assembly is installed on the sealing collection box 5. The sliding wheel assembly includes a tripod 6, a connecting rod 7 fixedly connected to the tripod 6, and a pulley 8 rotatably connected to the connecting rod 7. The tripod 6 is fixedly connected to the sealing collection box 5. An opening is provided at the upper end of the sealing collection box 5. The sealing strip 3 is placed inside the sealing collection box 5. One side of the sealing collection box 5 is fixed close to the inner wall of the storage tank 1. A tongue-shaped scraper 9 is fixedly connected, and the pressure plate 4 is located on one side of the inner wall of the storage tank 1; four sliding wheel assemblies are provided, namely sliding wheel assembly one, sliding wheel assembly two, sliding wheel assembly three, and sliding wheel assembly four. Sliding wheel assembly one and sliding wheel assembly two are arranged opposite each other and are located on both sides of the opening of the sealed collection box 5, sliding wheel assembly three is located at the top of the sealed collection box 5, and sliding wheel assembly four is located on one side of the inner wall of the storage tank 1; the other end of the sealing strip 3 passes between sliding wheel assembly one and sliding wheel assembly two, goes around sliding wheel assembly two, and passes through sliding wheel assembly four and the inner wall of the storage tank 1, closely adhering to the inner wall of the storage tank 1, and is fixedly connected to the bottom of the storage tank 1 between the tongue-shaped scraper 9 and the inner wall of the storage tank 1; the pressure plate 4 is close to the sealing strip 3. The steps for use are as follows: Fill the storage tank with the liquid and place the floating plate; install the sealing collection box around the floating plate and fix it with M10 bolts; connect one end of the sealing strip to the sealing strip collection box and the other end to the bottom of the storage tank through the sealing strip to form a complete annular sealing system; tightly fit the sealing strip 3 to the tank wall with the pressure plate 4, so that the part of the sealing strip 3 below the pressure plate 4 is tightly fitted to the tank wall.

[0018] The principle of this invention

[0019] In summary: The present invention provides a system for solving the problem of wall adhesion loss in floating roof storage tanks. When in use, the sealing strip is placed in the sealing collection box. The other end of the sealing strip is passed between sliding wheel assembly one and sliding wheel assembly two, around sliding wheel assembly two, and then sequentially passed between sliding wheel assembly four and the inner wall of the storage tank, adhering tightly to the inner wall of the storage tank. The tongue-shaped scraper is fixedly connected to the bottom of the storage tank between the inner wall of the storage tank (1). Then, the pressure plate is pressed onto the sealing strip. Because the pressure plate is made of rubber, any sticky liquid will adhere to the inside of the storage tank. During the operation of the floating roof, as the liquid level in the storage tank and the floating roof... As the liquid level rises, the sealing strip is pulled out of the sealing collection box by the sliding wheel. After being pulled out, it adheres to the tank wall along with the liquid, forming a circumferential seal. When the liquid level drops, the sealing strip is retracted into the sealing collection box by the rotation of the sliding wheel. Normally, when the floating roof is not in operation, the sealing strip is connected to the sealing collection box on the floating roof, with its bottom end tightly fitted to the bottom of the tank wall. The entire sealing strip remains circumferential, creating a sealed annular space in the vertical direction. Even if residual organic compounds are attached to the sealing strip, they will not volatilize into the air, achieving VOCs treatment. This invention has a simple structure and effectively solves the problem in the prior art where only secondary sealing scrapers or tongue-shaped scrapers can be installed at the perimeter seal to address oil residue adhering to the tank wall during the floating roof's descent, but the treatment effect still fails to meet expectations.

[0020] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A system for resolving wall adhesion losses in floating roof tanks, characterized in that: The system includes a storage tank (1) and a wall-mounted sealing structure. A floating roof (2) is installed inside the storage tank (1). The wall-mounted sealing structure includes a sealing strip (3), a pressure plate (4), and a sealing collection box (5). The sealing collection box (5) is fixedly connected to the floating roof (2) by bolts and nuts. A sliding wheel assembly is installed on the sealing collection box (5). The sliding wheel assembly includes a tripod (6), a connecting rod (7) fixedly connected to the tripod (6), and a pulley (8) rotatably connected to the connecting rod (7). The tripod (6) is fixedly connected to the sealing collection box (5). An opening is provided at the upper end of the sealing collection box (5). The sealing strip (3) is installed inside the sealing collection box (5). A tongue-shaped scraper (9) is fixedly connected to one side of the sealing collection box (5) and close to the inner wall of the storage tank (1). The pressure plate (4) is located on one side of the inner wall of the storage tank (1). There are four sliding wheel assemblies, namely sliding wheel assembly one, sliding wheel assembly two, sliding wheel assembly three, and sliding wheel assembly four. Sliding wheel assembly one and sliding wheel assembly two are arranged opposite each other and are located on both sides of the opening of the sealed collection box (5). Sliding wheel assembly three is located at the top of the sealed collection box (5). Sliding wheel assembly four is located on one side of the inner wall of the storage tank (1). One end of the sealing strip (3) is connected to the sealed collection box (5). The other end of the sealing strip (3) passes between sliding wheel assembly one and sliding wheel assembly two, goes around sliding wheel assembly three and is close to the inner wall of the storage tank (1), passes between sliding wheel assembly four and the inner wall of the storage tank (1), between the tongue scraper (9) and the inner wall of the storage tank (1), and is fixedly connected to the bottom of the storage tank (1).

2. The system for resolving wall-hanging losses in floating roof tanks according to claim 1, characterized in that: The pressure plate (4) is close to the sealing strip (3).

3. The system for resolving wall adhesion losses in floating roof tanks according to claim 1, the usage steps are as follows: A. Fill the storage tank with the liquid and place the floating plate; B. Install the sealed collection box around the floating roof and fix it with M10 bolts; C. Connect one end of the sealing tape to the sealing tape collection box, and connect the other end to the bottom of the storage tank through the sealing tape to form a complete annular sealing system; D. The sealing strip (3) is tightly attached to the tank wall with the pressure plate (4), so that the position below the sealing strip (3) and the pressure plate (4) is tightly attached to the tank wall.

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