An apparatus for collecting and isolating an incidentally leaked oil

Abstract

The utility model discloses a device of collecting and isolating accident leakage oil, and the device is composed of an oil collecting disc and an oil separation groove, the oil collecting disc is a disc type cavity structure, contains the bottom disc and the baffle that surrounds the four sides of bottom disc integrally, and the inner surface of bottom disc is smooth plane and has the gradient of not less than 1%; one side of the groove body of oil separation groove is equipped with liquid inlet, and the liquid inlet communicates with oil collecting disc; the groove body is divided into oil inlet area, oil separation area and drainage area in turn along the fluid direction; the oil separation area is provided with pebble layer and grating from top to bottom in turn; the bottom of groove body is equipped with the drain, and the side wall is equipped with overflow port; the groove body of oil separation groove is made of glass steel; the device has excellent anti -leakage, corrosion -resistant, flame -retardant high temperature -resistant, structural performance is good, and the weight is light, and the construction and maintenance cost are low, and the service life is long, and one kind of composite material oil separation pond system device has good economic and social benefits.

Description

Technical Field

[0001] This utility model belongs to the field of industrial safety and environmental protection technology, and specifically relates to a device for collecting and isolating accidental oil leaks. Background Technology

[0002] An accident oil collection and isolation system is a safety and environmental protection facility specifically designed to collect oil leaked from equipment such as transformers, oil tanks, and refining units during accidents (such as explosions, leaks, and fires), along with accompanying fire-fighting water and polluted rainwater, preventing them from flowing into the external environment or causing secondary disasters. Its core function is to block the spread of oil, prevent fires and environmental pollution, and it serves as the "last line of defense" for high-risk industries.

[0003] Traditional oil collection and isolation devices (such as emergency oil tanks and grease traps) are mostly constructed by on-site casting of concrete or welding and assembling of carbon steel plates. Concrete structures have disadvantages such as long construction periods, heavy weight, and susceptibility to cracking and leakage; carbon steel structures face problems such as susceptibility to corrosion by oil and environmental media, short service life, and the need for frequent anti-corrosion maintenance. Both have inherent defects such as insufficient impermeability, poor corrosion resistance, bulky structure, poor adaptability to complex terrain, and high maintenance costs. Emergency oil has poor fluidity and is prone to accumulation and blockage.

[0004] Glass fiber reinforced thermosetting resin composites (GFRP) combine the high strength of glass fiber with the corrosion resistance and temperature resistance of thermosetting resins (epoxy, unsaturated polyester, vinyl ester, etc.). They also offer advantages such as flexible molding processes, customizable irregular structures, strong design flexibility, and excellent structural performance. GFRP can be integrally molded into any complex shape without splicing or welding. Furthermore, it boasts advantages such as convenient construction, short construction period, low maintenance costs, and long service life. In industrial equipment, structural engineering, and corrosion and seepage prevention, it exhibits comprehensive performance far exceeding that of traditional materials such as steel and concrete, making it particularly suitable for corrosive environments, lightweight requirements, and irregular structural applications where traditional materials are inadequate. Summary of the Invention

[0005] The purpose of this invention is to design a device for collecting and isolating accidental oil leaks. This invention is based on fiberglass material to obtain a device for collecting and isolating accidental oil leaks. The device has excellent anti-leakage performance, excellent corrosion resistance and flame retardancy, lightweight and sturdy structure, quick construction and installation, and low maintenance cost throughout its entire life cycle.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A device for collecting and isolating accidentally leaked oil, characterized in that: the device consists of an oil collection tray and an oil separator. The oil collecting tray is a disc-shaped cavity structure, including a chassis and an integral baffle surrounding the chassis. The inner surface of the chassis is a smooth plane with a slope of not less than 1%. The oil separator has a liquid inlet on one side of the tank body, which is connected to the oil collection tray; the tank body is divided into an oil inlet zone, an oil separator zone and a drainage zone along the fluid direction; the oil separator zone is provided with a pebble layer and a grid from top to bottom; the tank body has a drainage outlet at the bottom and an overflow outlet on the side wall; Both the oil collecting tray and the oil separating tank are made of fiberglass.

[0007] Furthermore, the oil collecting plate can be circular, polygonal, I-shaped, or irregularly shaped.

[0008] Furthermore, the baffle height of the oil collection tray shall not be less than 100mm.

[0009] Furthermore, the oil separator has a rectangular structure, the pebble layer has a pebble particle size of not less than 50mm, and a support structure is provided below the grid, which is fixedly connected to the tank.

[0010] Furthermore, the overflow port is a pipeline consisting of a pipe and fittings, which enters from the bottom of the tank and extends to the top opening of the tank, and the height of the top opening is not higher than the designed maximum liquid level of the tank.

[0011] Furthermore, fiberglass includes an inner lining layer, a transition layer, a structural layer, and an outer layer.

[0012] The above technical solution can achieve the following beneficial effects: The oil collecting tray of this utility model is made of one piece. Except for the side of the oil separator, baffles of no less than 100mm are set on all four sides to ensure the stability of the tray installation and prevent deformation or collapse. The surface must be smooth and flat with a slope of no less than 1% to facilitate oil or liquid drainage.

[0013] The oil separator is divided into three functional areas: oil inlet, oil separation, and drainage, to achieve buffering, separation, and discharge of oil and water. The middle of the oil separator has a buffer oil separation zone, and the upper part is a pebble layer (particle size not less than 50mm), which has the functions of fire prevention, cooling, and uniform flow distribution, improving the oil-water separation efficiency. A grid is installed below the pebble layer to filter impurities. The grid is made of the same material as the tank body. A support structure is set below the grid, and the support is bonded to the tank body to ensure the safety of the upper pebbles and grid. After the oil-water mixture in the inlet pipe enters the oil separation zone...

[0014] The oil collecting pan and oil separator body consists of, from the inside out, an inner lining layer (corrosion-resistant layer), a transition layer (seepage-proof layer), a functional structural layer, and an outer layer (outer protective layer). Preferably, a specific flame-retardant resin matrix is ​​used throughout to ensure its fire resistance. The dense, seamless inner lining layer fundamentally solves the problems of concrete cracking and steel weld leakage. The excellent corrosion resistance of the resin matrix to oils, acids, alkalis, and electrolytes allows the unit to be used long-term in harsh environments without additional anti-corrosion treatment, eliminating the risk of secondary leakage caused by corrosion.

[0015] This utility model device can be prefabricated in the factory, and only the foundation pit treatment and overall hoisting and connection are required on site, which greatly reduces the amount of on-site wet work and welding work, significantly shortens the construction period, and has little environmental impact. Attached Figure Description

[0016] Figure 1 This is a side view of the device.

[0017] Figure 2 This is a top view of the device.

[0018] Figure 3 This is a top view of the oil collection tray.

[0019] Figure 4 This is a cross-sectional view of the oil collection pan.

[0020] Figure 5 This is a top view of the oil separator.

[0021] Figure 6 This is a side view of the oil separator.

[0022] Figure 7 This is a reference diagram for specific usage.

[0023] In the picture: In the diagram: 1. Oil collection tray; 2. Oil separator; 11. Chassis; 12. Baffle; 21. Liquid inlet; 22. Pebble layer; 23. Grille; 24. Support; 25. Drain outlet; 26. Overflow outlet. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings: like Figure 1-7 As shown, Figures 1 to 7 As shown in the figure, this embodiment provides a device for collecting and isolating accidental oil leaks, which mainly consists of two parts: an oil collection pan 1 and an oil separator 2.

[0025] The oil collection tray 1 is made of fiberglass and integrally molded using a molding process. Its base 11 can be rectangular, triangular, circular, or other irregular shapes. Figure 3As shown in the figure, this embodiment presents an I-shaped oil collection tray 1 with baffles around its perimeter. The central area slopes to one side (near the oil separator 2) at a 1% gradient, and the surface is smooth. The baffles 12 are 120mm high and are seamlessly connected to the base 11, ensuring overall rigidity and leak-proofness. It should be noted that the baffles need to have an opening to allow leaked oil to flow into the oil separator 2, or the base 11 can have a drain outlet in the middle to facilitate connection with the inlet of the oil separator 2 via a pipe.

[0026] The oil separator 2 is also made of the same fiberglass material and has a rectangular structure with an effective internal volume of approximately 5 cubic meters. An inlet 21 is located on the upper side of the tank, connected to the outlet of the oil collection tray 1 via a flanged pipe. Inside the tank, the area below the inlet 21 is the oil inlet zone. The middle section is the oil separation zone, filled with clean pebbles with a particle size of approximately 60-80 mm, forming a pebble layer 22 approximately 300 mm thick. A fiberglass grating 23 is installed below the pebble layer 22, fixedly supported by several strip-shaped supports 24. The supports 24 are firmly bonded to the inner wall of the tank using resin adhesive. The grating 23 can be easily lifted for cleaning the pebbles or sediment at the bottom of the tank. A drain outlet 25 is located at the lowest point of the tank, equipped with a pneumatic control valve (not shown in the figure), which can be connected to the plant's emergency drainage network. On the other side of the tank away from the inlet 21, an overflow port 26 is provided. It is a DN50 fiberglass pipe that enters from the bottom of the tank and extends vertically upward. The distance between the top of the pipe and the top of the tank is 200mm, which serves as the maximum liquid level limit.

[0027] The entire device (oil collecting pan 1 and oil separating tank 2) is constructed of fiberglass reinforced plastic (FRP) material, consisting of: a 3mm thick resin-rich corrosion-resistant inner lining, a 2mm thick transition layer, an approximately 8mm thick main structural layer reinforced with multiple layers of fiberglass fabric, and an outermost UV-resistant and weather-resistant protective coating. Flame retardants are added to the vinyl ester resin used, giving it an oxygen index greater than 32, meeting flame retardant and fire-resistant requirements.

[0028] During installation, Figure 7 As shown, the foundation pit is first excavated and the foundation is treated according to the design. The prefabricated oil collection tray 1 and oil separator 2 are hoisted into place, leveled, and then backfilled and fixed, so that the oil collection tray 1 is located below the transformer and radiator. The shape of the oil collection tray 1 corresponds to the outline of the transformer and radiator, thus effectively collecting leaked oil to the maximum extent. In this embodiment, the resulting shape is similar to an I-beam. Pipes are connected between the oil collection tray 1 and the oil separator 2, and external pipes are connected to the drain outlet 25 and overflow outlet 26 of the oil separator 2. Finally, a grating 23 and a pebble layer 22 are laid in the oil-separating area of ​​the oil separator 2, and it is ready for use.

[0029] When an oil leak occurs, the oil flows into the oil collection pan 1, collects along the slope, and then enters the oil separator tank 2 through the inlet 21. The mixture is first buffered, evenly distributed, and initially cooled by the pebble layer 22, and then undergoes gravity settling separation. The separated floating oil remains at the top of the tank, while the water in the lower layer is discharged under control through the drain outlet 25. If the liquid level rises abnormally to the height of the overflow outlet 26, the excess liquid will be safely discharged through the overflow outlet 26 to prevent overflow.

[0030] The above descriptions are all preferred embodiments of this utility model. For those skilled in the art, any modifications to this utility model in various equivalent forms without departing from the principle of this utility model shall fall within the protection scope of the appended claims.

Claims

1. A device for collecting and isolating accidentally leaked oil, characterized in that: The device consists of an oil collection tray and an oil separator. The oil collecting tray is a disc-shaped cavity structure, including a chassis and an integral baffle surrounding the chassis. The inner surface of the chassis is a smooth plane with a slope of not less than 1%. The oil separator has a liquid inlet on one side of the tank body, which is connected to the oil collection tray; the tank body is divided into an oil inlet zone, an oil separator zone and a drainage zone along the fluid direction; the oil separator zone is provided with a pebble layer and a grid from top to bottom; the tank body has a drainage outlet at the bottom and an overflow outlet on the side wall; Both the oil collecting tray and the oil separating tank are made of fiberglass.

2. The device for collecting and isolating accident-leaked oil according to claim 1, characterized in that: The oil collecting plate is circular, polygonal, I-shaped, or irregularly shaped.

3. A device for collecting and isolating accidentally leaked oil according to claim 1 or 2, characterized in that: The height of the baffle plate of the oil collection tray shall not be less than 100mm.

4. The device for collecting and isolating accident-leaked oil according to claim 1, characterized in that: The oil separator has a rectangular structure, the pebble layer has a pebble diameter of not less than 50mm, and a support structure is provided below the grid, which is fixedly connected to the tank.

5. The apparatus for collecting and isolating accident-leaked oil according to claim 1, characterized in that: The overflow port is a pipeline consisting of a pipe and fittings. The pipe enters from the bottom of the tank and extends to the top opening of the tank, and the height of the top opening is not higher than the design maximum liquid level of the tank.

6. The apparatus for collecting and isolating accident-leaked oil according to claim 1, characterized in that: Fiberglass reinforced plastic (FRP) consists of an inner lining layer, a transition layer, a structural layer, and an outer layer.

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