Top Oil Heating Companies in Norway

Heaten has develop a Very High Temperature Heat Pump based on an efficient, durable and highly flexible piston machine technology.

A chain is only as strong as its weakest link… Oil spill incidents are unplanned and unwanted events that can have dire consequences for the environment and fragile ecosystems around the globe. Fast response combined with the correct equipment able to cope with any type of hydrocarbon emulsion is vital to minimize the risk involved in extracting, processing and transporting petrochemicals outside our coastlines. Parat Halvorsen, in close cooperation with yards and ship owners, has developed a system that strengthens one vital part of the response value-chain in a very cost efficient way. A heating system that is fully integrated into the response vessels utility and heat recovery loop - and that in moments can be re-mobilized to deliver steam through specially engineered injection nozzles into the tanks that carry recovered hydrocarbons. PARAT Halvorsen is a Norwegian technology company providing state of the art solutions for steam- or other heated medium based processes. PARAT has delivered boilers and heaters to the marine and offshore markets since 1970. Theory Exploration and production of hydrocarbons off coast-lines around the world is increasing. Reliable oil spill response solutions are essential, and the focus on this type of technology is constantly growing. PARAT has been working on the transportation aspects of this problem for years now. Ships store the oil recovered from the sea in tanks, and the oil needs to stay viscous so the tanks can be emptied. This is done by injecting steam into the emulsion during transport. During the Prestige oil spill incident in the Bay of Biscay in 2002 it was discovered that the recovered oil settled quickly in the storage tanks and became too thick to be pumpable. The only way to get it out was mechanically. In order to increase the viscosity, steam was injected directly into the tanks. In the aftermath, NOFO (Norwegian Clean Seas Asso-ciation for Operating Companies), developed a basic standard for vessels to be approved for oil spill recovery operations which specifically requires tank heating to be part of the vessels basic equipment. When presented with such an opportunity, PARAT Halvorsen worked closely together with the yards and owners to find and develop the most space and cost efficient solution available. This involves integrating the vessel hot water loop with the contingency steam injection tank heating system. Various basic concepts : Steam backup - dedicated steam boiler installed as a 100% backup system, which will only be in operation when the vessel is in Oil Recovery mode. Steam boiler with two phase heat exchanger - steam boiler provides heat to the vessels hot water loop through a steam/hot water heat exchanger. In Oil Recovery mode, a small flow is still routed through the heat exchanger to provide sufficient heat for the critical HVAC consumers. Combined steam and hot water boiler - boiler fully integrated in the vessel hot water and heat recovery loop. When in Oil Recovery mode the boiler is dedicated to supply steam for tank heating, and the HVAC-loop is maintained with a bypass system. The system is patented by PARAT Halvorsen. Multi nozzle lance In case of oil pollution to the sea surface, the oil will be recovered and stored in tanks in the oil recovery ships until it can be delivered for processing. Experience from such situations has shown that the oil must be heated to maintain a sufficient viscosity for offloading. To ensure that the recovery vessels can operate efficiently, NOFO has made regulations requiring a sufficient heating system for the tanks on board. Presently, such oil tanks are heated by steam from a boiler on board. The steam is in many cases delivered to several nozzles installed around the perimeter of the tank. To achieve an adequate distribution of steam and heat in the tank multiple nozzles must be installed. Such an installation has several drawbacks. One is the necessity of many openings in the tank. Another is the need of a manifold to distribute the steam. Both these features lead to a lot of couplings and gaskets that may develop leaks, and which are costly. Even with several nozzles installed, the heat distribution may be insufficient, leaving spaces such as the area around the tank outlet in the bottom in a cold shadow. There may also be insufficient space around the tank for such a large installation. Often the tank is accessible only in a small sector of its circumference, making it difficult to provide a sufficient number of steam inlets. PARAT Halvorsen has developed a multi nozzle arrangement that ensures a better distribution of heat in the oil recovery tank and at a lower cost than previously mentioned alternatives. This is achieved with a distribution system which is capable of heating the whole tank from one insertion point. The arrangement reduces the need for complicated assemblies in the tanks, and also ensures that it is sufficient with one nozzle system per tank. ︎ Permanent installation The multi nozzle steam lance will be designed and optimized for each tank. For tanks where entrance is not allowed, the lance must be installed permanently. To enable permanent installation the nozzle heads are fitted with rupture discs that ensure that there will be no ingress of pollution to the nozzle head when the lance is not in operation.

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