Energy-saving and environment-friendly oil and gas storage and transportation inner floating disc

Abstract

The utility model belongs to oil and gas storage and transportation equipment technical field especially is a kind of energy -conserving and environment -friendly oil and gas storage and transportation inner floating disc, and modularization floating disc main body is formed by the mortise and tenon structure splicing of multiple fan-shaped floating cabin module;Composite self-adapting sealing mechanism includes the main sealing layer and auxiliary sealing layer around the edge of floating disc main body;Kinetic energy recovery energy-saving component includes the micro hydroelectric generator of installation in the flow guide cylinder bottom and the energy storage battery group and LED explosion-proof lamp on the upper surface of floating disc main body.The utility model, through the composite sealing structure of main sealing layer and auxiliary sealing layer, improves sealing performance, and metal framework main sealing layer guarantees basic sealing strength, and elastic airbag auxiliary sealing layer fills up gap by pressure self-adapting, reduces oil and gas leakage loss, and modularization splicing design makes floating disc can increase and decrease fan-shaped floating cabin module, adapts the storage tank of different diameters, and the design of strong universality, oil expansion rubber strip and sealing washer, reduces the replacement frequency of sealing component, reduces maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas storage and transportation equipment technology, specifically an energy-saving and environmentally friendly internal floating roof for oil and gas storage and transportation. Background Technology

[0002] An internal floating roof is a floating device that floats on the surface of the oil medium inside an oil storage tank and moves up and down with the rise and fall of the liquid level. Its core function is to isolate the oil from contact with air, reducing oil and gas evaporation losses. It also serves to ensure tank safety and delay oil aging. Currently, most existing internal floating roofs for oil and gas storage and transportation adopt a single structural design, which has the following prominent problems: Most internal floating roofs use a single rubber sealing ring that is fitted and sealed to the tank wall. Due to the roundness error of the tank wall and the levelness deviation of the floating roof, sealing gaps are prone to occur, resulting in oil and gas leakage and loss, which does not meet the requirements of energy conservation and environmental protection. Moreover, the single sealing ring is subject to oil and gas corrosion and temperature changes over a long period of time, and the aging speed is fast, requiring frequent replacement and high maintenance costs.

[0003] Existing internal floating roofs are mostly integral or simply spliced ​​structures, which are only suitable for storage tanks with fixed diameters. They cannot be flexibly adapted when the storage tank specifications change, resulting in poor versatility. At the same time, the main body of the floating roof is mostly made of a single metal material, which is heavy and increases the load on the liquid surface. In addition, its corrosion resistance is limited, and it is prone to corrosion and damage when storing and transporting special media containing sulfur, acid, etc., thus shortening its service life.

[0004] Existing internal floating roofs only achieve basic energy-saving effects by reducing oil and gas losses through "isolation and sealing," without incorporating energy recovery and utilization designs during storage and transportation, thus failing to further reduce the overall energy consumption of the storage and transportation system. For example, the minute pressure generated by oil and gas evaporation in the storage tank and the kinetic energy of liquid surface fluctuations are not effectively utilized, resulting in energy waste. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an energy-saving and environmentally friendly internal floating roof for oil and gas storage and transportation, which solves the problems of poor sealing, weak adaptability, and limited energy-saving capabilities of existing internal floating roofs.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution: An energy-saving and environmentally friendly internal floating roof for oil and gas storage and transportation includes a modular floating roof body, a composite adaptive sealing mechanism, and kinetic energy recovery energy-saving components. The modular floating roof is composed of multiple fan-shaped floating pod modules spliced ​​together by quick-connect components. Each fan-shaped floating pod module is a hollow sealed structure, using a double-layer solid structure of carbon fiber composite plate and inner anti-corrosion lining. Among them, the carbon fiber composite plate constitutes the outer shell of the floating hull, which has high strength and lightweight characteristics, with a density of ≤1.6g / cm³ and a bending strength of ≥300MPa. The inner anti-corrosion lining is made of polytetrafluoroethylene material with a thickness of 2-3mm, which can withstand the temperature range of -40℃~120℃ and various oil and gas media corrosion. The splicing surface of the fan-shaped floating pod module is equipped with a tenon and mortise structure with a concave-convex fit, including a connector strip and a connector groove, and a sealing groove is opened at the edge of the splicing surface, with an oil-expanding rubber strip embedded in the groove; To enhance the stability of the splicing of adjacent floating hull modules, reinforcement bolts were installed at the splicing points, with rubber sealing rings built into the bolt holes to ensure no leakage at the splicing points. The reinforcing bolts adopt a press-type unlocking structure. The bolt shank is fitted with a sealing washer made of nitrile rubber. After tightening, the sealing washer is compressed to seal the bolt hole and prevent oil and gas from leaking from the joint. The bolts can be quickly removed by pressing the unlocking button on the top of the bolt, which facilitates the installation, maintenance and replacement of the floating roof. A circular flow guide hole is provided at the center of the floating roof body, and a liftable flow guide cylinder is installed inside the flow guide hole. Spiral flow guide blades are installed inside the flow guide cylinder. When oil is fed into or discharged from the storage tank, the liquid flows along the spiral blades, reducing the impact force on the liquid surface, minimizing the swaying of the floating plate, and preventing the increased volatilization of oil and gas caused by local eddies.

[0007] The composite adaptive sealing mechanism is arranged around the edge of the floating roof body: The main sealing layer is an L-shaped cross-section metal skeleton seal. The metal skeleton is made of 304 stainless steel. The inner side is attached to the edge of the floating roof body, and the outer side is wrapped with a fluororubber sealing layer. The fluororubber sealing layer is tightly attached to the inner wall of the storage tank to form the first seal. The auxiliary sealing layer is a hollow elastic airbag, which is fixedly installed on the outside of the main sealing layer. The airbag is filled with inert gas and the surface of the airbag is covered with a wear-resistant polyurea coating. The airbag is connected to a miniature pressure regulating valve inside the floating roof body via a conduit. When the floating roof tilts as the liquid level rises and falls, the pressure regulating valve automatically adjusts the pressure inside the airbag to ensure that the airbag always fits tightly against the tank wall and fills the gap in the main sealing layer.

[0008] The kinetic energy recovery and energy-saving components include a micro hydroelectric generator, an energy storage battery pack, and an energy-saving lighting module. Energy recovery and utilization are achieved through the integrated design of the physical structure. The micro hydroelectric generator is fixedly installed at the bottom of the guide tube of the floating roof body. Its impeller extends into the guide hole. When the tank is filled or discharged, causing the liquid level to rise or fall, the liquid flows through the guide hole to drive the impeller to rotate, which drives the generator to generate electricity, converting the kinetic energy of the liquid surface fluctuation into electrical energy. The energy storage battery pack is embedded in the upper surface of the floating table body. It uses lithium iron phosphate batteries with a capacity of 50-100Wh and is electrically connected to a micro hydroelectric generator to store the recovered electrical energy. The energy-saving lighting module is an LED explosion-proof light, installed on the upper surface of the floating roof body and electrically connected to the energy storage battery pack. It provides lighting for maintenance operations inside the storage tank without the need for an external power supply, thus achieving energy saving and consumption reduction.

[0009] Compared with the prior art, this utility model provides an energy-saving and environmentally friendly internal floating roof for oil and gas storage and transportation, which has the following beneficial effects: This invention improves sealing performance through a composite sealing structure of a main sealing layer and an auxiliary sealing layer. The metal skeleton main sealing layer ensures basic sealing strength, while the elastic airbag auxiliary sealing layer fills gaps through pressure self-adaptation, reducing oil and gas leakage losses. The modular splicing design allows the floating roof to adapt to storage tanks of different diameters by adding or removing fan-shaped floating hull modules, making it highly versatile. The kinetic energy recovery component converts the kinetic energy of liquid surface fluctuations into electrical energy to power the lighting inside the tank, reducing energy consumption during daily maintenance. The design of the oil-expanding rubber strip and sealing gasket reduces the replacement frequency of sealing components, lowering maintenance costs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the fan-shaped floating hull module in this utility model; Figure 3 This is a schematic diagram of the installation of the micro hydroelectric generator in this utility model.

[0011] In the diagram: 1. Fan-shaped floating hull module; 101. Connecting strip; 102. Connecting groove; 103. Sealing groove; 2. Main sealing layer; 3. Auxiliary sealing layer; 4. Conduit; 5. Miniature pressure regulating valve; 6. Flow guide tube; 7. Spiral guide vane; 8. Energy storage battery pack; 9. LED explosion-proof light; 10. Miniature hydroelectric generator. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0013] like Figure 1 , Figure 2 and Figure 3As shown in one embodiment of this utility model, an energy-saving and environmentally friendly internal floating roof for oil and gas storage and transportation includes a modular floating roof body, a composite adaptive sealing mechanism, and a kinetic energy recovery energy-saving component. The modular floating roof is composed of multiple fan-shaped floating hull modules 1 joined together by mortise and tenon joints. The mortise and tenon structure for splicing the fan-shaped floating pod modules 1 includes a connector strip 101 and a connector groove 102. The connector strip 101 and the connector groove 102 are respectively arranged on both sides of the fan-shaped floating pod module 1 and are arranged in cooperation with each other. Among them, the edge of the splicing surface of the fan-shaped floating pod module 1 is provided with a sealing groove 103, and an oil-expanding rubber strip is embedded in the sealing groove 103. Among them, the fan-shaped floating pod module 1 is a double-layer hollow sealed structure with carbon fiber composite plate and polytetrafluoroethylene lining anti-corrosion layer. A circular guide hole is provided at the center of the floating roof body, a guide cylinder 6 is placed in the guide hole, and a spiral guide blade 7 is installed on the inner wall of the guide cylinder 6. The composite adaptive sealing mechanism includes a main sealing layer 2 surrounding the edge of the floating table body and an auxiliary sealing layer 3, with the auxiliary sealing layer 3 fixedly disposed on the outside of the main sealing layer 2; Among them, the main sealing layer 2 is a metal skeleton seal with an L-shaped cross section. The metal skeleton is wrapped with a fluororubber sealing layer on the outside, the inner side is attached to the edge of the floating roof body, and the outer side is tightly attached to the inner wall of the storage tank. Among them, the auxiliary sealing layer 3 is a hollow elastic airbag, which is filled with inert gas and covered with a wear-resistant polyurea coating. The airbag is connected to the micro pressure regulating valve 5 in the floating table body through the conduit 4. The kinetic energy recovery energy-saving component includes a micro hydroelectric generator 10 installed at the bottom of the guide tube 6, an energy storage battery pack 8 and an LED explosion-proof light 9 located on the upper surface of the floating plate body. The energy storage battery pack 8 is electrically connected to the micro hydroelectric generator 10 and the LED explosion-proof light 9 respectively. Among them, energy storage battery pack 8 is a lithium iron phosphate battery; The impeller of the micro hydroelectric generator 10 extends into the guide tube 6, corresponding to the spiral guide blades 7 inside the guide tube 6.

[0014] The floating roof is composed of 6 sector-shaped floating hull modules 1 spliced ​​together. Each sector-shaped floating hull module 1 is spliced ​​together by plug-in strips 101 and plug-in grooves 102. At the same time, oil-expanding rubber strips are embedded in the sealing grooves of the splicing surfaces, and the connection is fixed by reinforcing bolts to complete the splicing and sealing. The main sealing layer 2 installed on the edge of the floating roof body fits against the inner wall of the storage tank, and the auxiliary sealing layer 7 is connected to the micro pressure regulating valve through a conduit. When the floating roof tilts, the pressure regulating valve automatically inflates the air bladder to fill the sealing gap and achieve a stable sealing connection. When the kinetic energy recovery energy-saving component is working, the liquid level rises and falls as the tank is filled and discharged. The liquid flows through the spiral guide vanes 7 of the guide tube 6, which drives the impeller of the micro hydroelectric generator 10 to rotate and generate electricity. The electrical energy is stored in the energy storage battery pack 8. When the tank is under maintenance, the LED explosion-proof light 9 is turned on and powered by the energy storage battery pack 10, reducing the power loss during daily maintenance.

[0015] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An energy-saving and environmentally friendly internal floating roof for oil and gas storage and transportation, comprising a modular floating roof body, a composite adaptive sealing mechanism, and kinetic energy recovery energy-saving components, characterized in that: The modular floating roof is composed of multiple fan-shaped floating hull modules (1) joined together by mortise and tenon joints; The composite adaptive sealing mechanism includes a main sealing layer (2) surrounding the edge of the floating roof body and an auxiliary sealing layer (3), with the auxiliary sealing layer (3) fixedly disposed on the outside of the main sealing layer (2); The energy recovery energy-saving component includes a micro hydroelectric generator (10) installed at the bottom of the guide tube (6) and an energy storage battery pack (8) and an LED explosion-proof light (9) located on the upper surface of the floating plate body. The energy storage battery pack (8) is electrically connected to the micro hydroelectric generator (10) and the LED explosion-proof light (9) respectively.

2. The energy-saving and environmentally friendly internal floating roof for oil and gas storage and transportation according to claim 1, characterized in that: The tenon and mortise structure of the fan-shaped floating cabin module (1) includes a splicing strip (101) and a splicing groove (102). The splicing strip (101) and the splicing groove (102) are respectively set on both sides of the fan-shaped floating cabin module (1) and are set in cooperation with each other. The edge of the splicing surface of the fan-shaped floating hull module (1) is provided with a sealing groove (103), and an oil-expanding rubber strip is embedded in the sealing groove (103).

3. The energy-saving and environmentally friendly internal floating roof for oil and gas storage and transportation according to claim 2, characterized in that: The fan-shaped floating module (1) is a double-layer hollow sealed structure consisting of carbon fiber composite plate and polytetrafluoroethylene lining anti-corrosion layer. A circular guide hole is provided at the center of the floating roof body, and a guide cylinder (6) is placed in the guide hole. Spiral guide blades (7) are placed on the inner wall of the guide cylinder (6).

4. The energy-saving and environmentally friendly internal floating roof for oil and gas storage and transportation according to claim 1, characterized in that: The main sealing layer (2) is an L-shaped metal skeleton seal, with a fluororubber sealing layer wrapped around the outside of the metal skeleton, the inner side of which is attached to the edge of the floating roof body, and the outer side of which is tightly attached to the inner wall of the storage tank. The auxiliary sealing layer (3) is a hollow elastic airbag filled with inert gas and covered with a wear-resistant polyurea coating. The airbag is connected to a micro pressure regulating valve (5) in the floating body through a conduit (4).

5. The energy-saving and environmentally friendly internal floating roof for oil and gas storage and transportation according to claim 1, characterized in that: The energy storage battery pack (8) is a lithium iron phosphate battery; The impeller of the micro hydroelectric generator (10) extends into the guide tube (6) and corresponds to the spiral guide blades (7) inside the guide tube (6).

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