Global power system supplier Rolls-Royce announced on July 25 that it has received more than £70 million worth of orders to supply large propellers for offshore drilling vessels.
It is reported that these orders come from different customers who need to expand the drilling fleet due to the development of oil and gas in deep water, and also include the priority of additional propulsion systems.
Helge Gjerde, Senior Vice President of Rolls-Royce Offshore, said, “In the past few years, we have delivered propellers for many drilling vessels. It is a pleasure to see customers continue to trust us.†According to reports, these high-performance drilling vessels It adopts dynamic positioning mode operation, realizes automatic positioning by satellite technology, and does not need mooring anchors, which has high requirements on the performance and reliability of the propeller.
Among them, Seadrill will be equipped with six azimuth thrusters for each of the three drilling vessels built by South Korea's Samsung Heavy Industries, with a single power of 4500 kW. A Drilling ship ordered by Pacific Drilling will also use a similar propeller, while a drilling ship from Ensco requires a more powerful propeller of the same design, which was built by Samsung Heavy Industries.
Previously, the Luo-Rod propeller had received contracts for Korean drilling vessels, including Hyundai Heavy Industries and Daewoo Shipbuilding and related customers Rowan, Noble, Fred Olsen and Attwood, Transocean (Aker) and Vantage.
Plate and gasket are the critical part of a removable Plate Heat Exchanger. The main function of the plate is to isolate the medium and perform heat exchange. Its main materials are stainless steel (304/304L, 316/316L, 254SMO), titanium, nickel, titanium-palladium alloy, Hastelloy, etc. The sealing gasket is installed in the gasket groove around the plates to seal the periphery between the plates to prevent the fluid from leaking out, and according to the design requirements, seal part of the corner holes so that the hot and cold media flow according to their own flow paths. The structure of the plate heat exchanger consists of a fixed frame, a movable frame and corrugated plates sandwiched between the two frames. Hot and cold liquids pass sequentially through the area between the corrugated plates separated by sealed elastomer paths. To prevent leaks, good gasket elastomers are installed around the perimeter of the plates and large fastening bolts are used to hold the plates together. The structure of the plate heat exchanger makes sealing a key part of this equipment, responsible for the service life of the entire equipment. Depending on the process medium, the gasket must be chemically and/or temperature resistant. Spetech supplies seals for most existing plate heat exchangers: power industry, petroleum processing, food and beverage industry, sugar industry, chemical, pulp and paper industry. The most commonly used materials are: NBR, HNBR, EPDM, FPM (different grades). There are two basic ideas for the installation of seals: glue seals and clip seals. Clip-on washers do not require any adhesives for installation. This modification makes it possible to mount the spacers by installing clips in the grooves in the plate. As a result, the gasket is highly resistant to pressure and can be replaced quickly and easily.
Heat Exchanger Plate&Gasket,Phe Gasket,Gea Gasket,Nbr Gasket
Guangdong Jiema Energy Saving Technology Co.,Ltd , https://www.jiemaheatexchanger.com