What is the difference between floating booms and skimmers？

pvc boom is a kind of equipment that collects oil and dirt on the water surface by floating body with skirt to prevent their diffusion. Portable pvc oil booms are commonly used to prevent the spread of oil pollution in oil spill accidents at sea and ports. It is composed of inflatable floating body, skirt, tension belt, counterweight chain and anchor parts. It is fixed around the oily water surface that needs to be fenced with anchors. It can be divided into marine type, offshore type and port type according to the use area, and has corresponding different technical data. Oil skimmer, also known as oil remover, is a kind of oil removal equipment, which is used in machine tool processing, spraying, food processing plants, etc. Dynamic inclined surface skimmer is an important equipment for oil spill mechanical recovery. It is difficult to achieve ideal oil collection efficiency due to the poor matching between water flow velocity and oil collection belt speed during operation. In order to master the oil collection mechanism and process of the dynamic inclined surface skimmer and improve the oil collection rate, CFX software is used to establish a three-dimensional model of the oil collection process of the dynamic inclined surface skimmer, conduct dimensional analysis and simulation, analyze the typical oil collection state, and study the matching relationship between the water flow velocity and the oil collection belt velocity. The simulation results show that, under the condition of certain water flow velocity and oil film thickness, different oil collecting belt speeds can cause different oil surface rolling up degree, and the oil surface rolling up degree can qualitatively measure the oil collecting state of the skimmer. The influence of oil collecting belt speed on the oil collecting state of the skimmer is verified, and the matching formula of water flow velocity and oil collecting belt speed is obtained, which can provide a basis for improving the oil collecting rate of the skimmer. The difference between the two is that the oil skimmer is widely used, but compared with the oil containment boom, the Rubber oil boom is more convenient and faster to use, and most people will choose to use the pvc silt curtain, because the oil containment fence is more economical.

Here is the contene list:

lStorage and maintenance of oil containment boom.

lPerformance index of oil containment boom.

lThe role of oil containment booms.

Storage and maintenance of oil containment boom.

The storage and maintenance of pvc oil booms are directly related to whether the rapid oil spill emergency response can be carried out and the containment operation can be effectively implemented. In order to ensure rapid response, the storage place of the oil containment boom shall be as close as possible to the wharf, operation point and sensitive resource protection area, and ensure that the storage place of the pvc oil fence is convenient for vehicles and ships. The oil fence stored outdoors shall ensure that the storage place is well drained, and pay attention to insect pests, moisture and direct sunlight; When stored indoors, pay attention to moisture and ensure good ventilation conditions. Take necessary measures to prevent pests (such as spraying rodenticide) in advance according to the situation; The pvc silt curtains that need to be folded and stored shall be placed on the shelf and other items shall not be stacked on it to avoid deformation of the Rubber silt curtains caused by excessive pressure. The stacked Rubberc oil fence s shall be regularly unfolded and inspected. The original folding marks shall be avoided during refolding; If it is necessary to store the pvc booms on the reels, the oil booms shall be prevented from being twisted during the winding process, and the wrapped oil booms shall be regularly unfolded and recycled after inspection. The maintenance of the oil boom mainly refers to the daily maintenance and the maintenance after the recovery operation. The maintenance after the recovery operation is mainly to check whether the pvc silt curtain is damaged, whether the accessories are complete or whether it needs to be replaced and repaired; Routine maintenance generally check whether the pvc silt curtain is worn, broken, fiber aging, connector corrosion or damaged due to pulling and other loading and unloading reasons, and carry out necessary repair and replacement; The oil containment fences that have been placed in the water area for a long time should also be regularly maintained. Generally, the oil containment booms should be pulled ashore regularly according to the specific conditions to remove the marine organisms and other adherents attached to the surface of the Rubber silt curtains; No matter what kind of maintenance and service is carried out, detailed records shall be made and inspection and maintenance items shall be arranged according to the records, so as to ensure that all contents involved in the oil containment boom can be inspected and maintained in a general way within a certain period of time, so that the Rubberc oil fence is always in a good standby state.

Performance index of oil containment boom.

The performance index of the oil containment boom generally refers to the freeboard, draft, height, total height, weight, total buoyancy, floating weight ratio and tensile strength of the Rubber silt curtain.

Freeboard: the minimum vertical height above the water line of the Rubberc oil fence. It is used to prevent or reduce spilled oil from splashing over the oil boom.

Draft: the minimum vertical depth of the surface layer below the water line of the oil boom.

Height: sum of freeboard and draft of oil boom.

Total height: the maximum vertical height of the pvc silt curtain.

Weight: the total weight of a fully assembled section of the boom including the boom joint.

Total buoyancy: the weight of the fresh water discharged by the sinking of all the pvc silt curtains.

Total floating weight ratio: the ratio of total buoyancy to total weight of Rubberc oil fence, referred to as floating weight ratio. The high floating weight ratio indicates that the Rubber Rubberc oil fence has a strong ability to recover the floating state after being flooded. This self recovery ability of the pvc silt curtain is called wave following. The higher the floating weight ratio, the stronger the self recovery ability and the better the wave following performance.

Tensile strength: the breaking force when the floating boom is broken.

The role of floating booms.

The functions of pvc silt curtains can be summarized as follows: containment and concentration, oil spill diversion and prevention of potential oil spill.

Containment and concentration of oil spill

After an oil spill accident, the oil spill will quickly diffuse and drift under the influence of tidal current, wind and other external factors, forming a large pollution area. In case of oil spill in open waters, near shore waters or ports, pvc silt curtains shall be arranged in time to timely control the oil spill in the process of diffusion. The oil film can be collected in a small area for recycling by dragging or narrowing the enclosing range of the Rubber silt curtains, which can not only prevent the oil spill from spreading, but also increase the thickness of the oil film for recycling or other treatment.

Oil spill diversion

After the oil spill accident, under the influence of external factors, the spilled oil will drift and diffuse at will. In order to facilitate the recovery operation or to divert the spilled oil to the designated place, especially in the river or near shore area with rapid water flow, in order to effectively control the flow direction of the spilled oil for recovery or to prevent the spilled oil from entering the sensitive area, the oil fence is usually used to set the external defense according to the set angle. There are generally two situations for oil spill diversion. One is the long-term arrangement of floating booms, which are generally arranged at water intakes and power plants; The other is to arrange floating booms near the reef, mainly to temporarily arrange floating booms according to the specific situation when oil spills occur, so as to realize the diversion of oil spills and lead the oil spills to areas that are easy to recover or other non sensitive resources.

Prevent potential oil containment boom.

Prevention of potential oil spill usually refers to the placement of foams in advance for oil spill prevention and control according to the local water conditions in places where oil spill may occur or there is oil spill risk. In this way, when oil spills really occur, it can prevent the spread of oil spills, take recovery measures, and timely recover the oil spills in the containment. When the ship is carrying out oil loading and unloading operations at the wharf or oil transfer at the anchorage, it is usually required to arrange Rubberc oil fences in advance according to the specified requirements for control; Sometimes, the stranded and sunken ships should be properly enclosed and controlled according to the actual situation before being salvaged.

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