how oil booms work?

作者：

 When an oil spill accident occurs on the sea, the use of oil containment booms can be strengthened to assist in the recovery of oil spilled on the sea. First, use the floating boom to enclose the spilled oil, locally increase the oil film thickness, and then put it into the oil absorbent felt or weir oil skimmer for recovery. After laboratory simulation of oil spill on the sea, using the oil containment fence to assist the recovery of spilled oil can greatly improve the working efficiency of the weir oil skimmer. Oil containment boom is a kind of equipment used to enclose oil and dirt on water surface with underwater floating body with skirt to prevent their diffusion. Portable pvc oil boom are commonly used to prevent the spread of oil pollution in oil spill accidents at sea and ports. pvc oil boom is composed of inflatable floating body, skirt, tension band, counterweight chain, and anchorage pieces.pvc oil boom is fixed around the oily water surface that needs to be fenced with anchorage. pvc oil boom can be divided into marine type, offshore type, port type and other types according to the use area.

Here is the contene list:  

  • How to reasonably arrange oil booms in offshore areas?

  • What are the main functions of oil boom?

  • How to store and maintain the oil boom?

How to reasonably arrange oil booms in offshore areas?

In fact, the most important problem in the layout of pvc boom is to find out the wind and waves in the area. In consideration of the fixing of the pvc oil boom, according to the wind and waves in the sea area, it is necessary to fix the orientation and mode in advance. For example, when the positioning buoy is used for coordination, it can be considered to drive wood piles underwater. At this time, the wood piles are connected with the positioning buoy, which can effectively fix the overall shape of the oil containment boom. Otherwise, wind and waves on the sea will make it difficult for the oil containment fence to enclose a fixed shape. Cement piles are used on the shore, and the thick steel wire rope is connected with the oil fence and cement piles. The pvc oil fence can well resist large wind waves. In fact, in general, the main role of offshore pvc silt curtain is the protection of shore Enteromorpha. In consideration of better protection effect, nylon rope protective mesh can be sewn on the skirt of the pvc oil boom. It does not need to extend too much underwater, and generally 2 meters is enough. This constitutes the first layer of protection for the beach. If it is necessary to make a certain protective shape, such as a rectangle, then on four points, two are fixed cement piles on the beach and two are underwater wooden piles, which are linked to the positioning buoy, so that the relative shape can be kept beautiful. Otherwise, the oil boom will be dragged only by the anchor, and it is difficult to maintain a good placement effect when the wind and waves are heavy.

What are the main functions of oil boom?

The role of oil containment boom can be summarized as follows: containment and concentration, oil spill diversion and potential oil spill prevention.

lOil spill containment and concentration

After the oil spill accident, the oil spill will spread and drift rapidly under the influence of tide, wind and other external factors, forming a large pollution area. In case of oil spillage in open waters, near shore waters or ports, oil containment booms shall be arranged in a timely manner, so that the oil spillage in diffusion can be enclosed in a timely manner. Through pvc oil boom to drag or narrow the containment area, the oil film can be gathered into a smaller area for recovery, which can prevent the spread of oil spillage, and can also increase the thickness of oil film for recovery or other treatment.

lOil spill diversion

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

lPrevent potential oil spill

To prevent potential oil spillage usually refers to arranging oil booms in advance for oil spillage prevention and control according to local water conditions in places where oil spillage is likely to occur or where there is a risk of oil spillage. In this way, when oil spillage really occurs, it can prevent the spread of oil spillage, take recovery measures, and timely recover the oil spillage in containment. When the ship is carrying out oil loading and unloading operations at the wharf or oil lightering at the anchorage, it is usually necessary to arrange pvc boom in advance as required for setting control; Sometimes, the stranded and sunken ships should be properly fenced according to the actual situation before they are salvaged.

How to store and maintain the oil boom?

The storage and maintenance of the oil containment boom is directly related to the rapid oil spill emergency response and the effective implementation of containment operations. In order to ensure rapid response, the storage location of pvc oil boom should be as close to the wharf, operation point and sensitive resource protection area as possible, and ensure that the storage location of the oil boom is convenient for vehicles and ships to enter and exit. For the oil fence stored outdoors, ensure that the storage site is well drained, pay attention to insect pests, moisture-proof, and avoid direct sunlight; When it is stored indoors, it should also pay attention to moisture-proof and ensure good ventilation conditions, and take necessary measures to prevent pests (such as releasing rodenticide) in the storage place according to the situation; The oil containment boom that needs to be folded for storage shall be placed on the partition frame and no other items shall be stacked on it to avoid deformation of the oil containment boom due to excessive pressure. The stacked pvc oil boom shall be inspected regularly and the original folding trace shall be avoided when it is folded again; If the pvc boom needs to be stored on the reel, it should be avoided that the oil boom is twisted during the winding process, and the pvc boom should be unfolded regularly and recycled after inspection. The maintenance of the Rubber 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 Rubber oil boom is damaged, whether the accessories are complete or whether they need to be replaced and repaired; Daily maintenance: generally check whether the oil boom is worn, cracked, fiber aged, connector corroded or damaged due to pulling and other loading and unloading reasons, and conduct necessary maintenance and replacement; The oil containment boom that has been placed in the water area for a long time should also be maintained regularly. Generally, the oil containment boom should be towed to the shore regularly according to the specific situation to remove the marine organisms and other adhesive substances attached to the surface of the Rubberc oil fence; 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 to ensure that all the contents involved in the oil boom can be inspected and maintained generally within a certain period of time, so that the oil boom is always in a good standby state.

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