(1) Oil and gas recovery valve: The Dongfeng tanker's oil and gas recovery valve is a device that recovers the oil and gas generated during the loading and unloading of oil. It can be installed directly on the top tank of the tanker or on the manhole cover. In the above, the mechanical linkage opening can be realized by a push rod and the bottom valve of the tank bottom, and the opening and closing of the gas can also be controlled by the gas source.

(2) Oil and gas recovery joints: The oil and gas recovery system of oil companies' oil depots consists of fire-breathing breathing valves, pipeline flame arrestors, three-way floating ball valves, oil and gas recovery joints, oil and gas recovery quick joints, etc., and forms a closed loop with tanker oil and gas recovery systems. The system effectively recycles the oil and gas generated during the refueling process at the station to avoid the proliferation of oil and gas.

(3) Subsea valve: The bottom valve of the Dongfeng Tanker, also called the emergency shut-off valve of the tank truck, is installed at the bottom of the tank and used for down loading and refueling. It is easy to operate, saves time, and is safe and environmentally friendly. Pressure balanced subsea valves are used for multi-tank tank trucks, which allow separate loading and unloading of different tanks. The three-way design simplifies the piping, reduces the load, and is simple to operate, safe and reliable.

(4) Bottom-mounted valve: The bottom-mounted valve of Dongfeng Tanker, also known as the unloading valve or under-loading oil, is installed under the side of the tanker for quick unloading.

(5) Anti-overflow probe: The anti-overflow electronic sensor is a kind of safety device that is used to prevent the liquid from leaking out of the container when the container is filled with liquid. It is installed on the top of the container tank. On the manhole cover, when the oil level reaches the warning limit, the sensor will automatically alarm to break the brake.

(6) European standard can lid: also known as manhole cover, installed on top of oil tanker tank, with built-in breathing and emergency exhaust function, and can be installed in the manhole cover oil and gas recovery valve, oil hole, anti- Overflow probes, etc., anti-overflow sensing system In the process of loading oil, when the liquid level reaches the detection position, the sensing system will automatically alarm to stop the loading of oil. The built-in breathing valve keeps the internal pressure of the oil tank stable during the oil transportation and balances with the external pressure. The design of the dumping overflow prevents the tank truck from being sealed in the event of an accident and the pressure of the emergency exhaust device in the tank. In the case of a sharp increase, it will be automatically opened to release the pressure inside the tank, thereby preventing accidents and greatly improving the safety of oil transport.

(7) Tanker: Dongfeng Dooligo tanker truck is equipped with a dedicated tanker, is a new large flow tanker, bold 15 meters automatic return reel with gun.

Slewing Bearing is a new type of mechanical parts in recent forty years rise in the world, it has inner and outer ring, a rolling body, etc. at present, our country type slewing bearing production, mainly from the beginning of 80s designated the Ministry of machinery industry Tianjin Mechanical Engineering Research Institute introducing design and manufacturing technology in the former Federal Republic of Germany Rothe Erde company.

Rotary bearing is a large bearing capable of bearing comprehensive load, which can bear large axial, radial load and overturning moment at the same time. Slewing bearing is usually equipped with mounting holes, internal gears or external gears, lubricating oil holes and sealing devices, so that the main engine can be compact in structure, easy to guide and easy to maintain. Slewing bearing without gear teeth type, four point contact ball bearing, external gear and internal gear type Double Row Angular Contact Ball Bearing cross Cylindrical Roller Bearing, crossed Tapered Roller Bearing and three row cylindrical Roller Bearing composite four series, including four point contact ball bearing with high static load capacity of cylindrical cross the roller has a high load capacity, crossed Tapered Roller bearing preloaded can make bearings with greater support stiffness and rotation accuracy, three row cylindrical roller combined bearings due to highly improve the bearing capacity of the various forces, respectively by different rolling bearing, so the same under the condition of stress, the bearing diameter greatly so it is reduced, so that the host features more compact is a slewing bearing with high bearing capacity. Slewing bearing is widely used in hoisting machinery, mining machinery, construction machinery, port machinery, marine machinery and high precision rotary equipment for radar, mechanical and missile launchers. At the same time, it can also design, develop and produce a variety of special structure rotary bearing bearing according to the specific requirements of the user.

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