Subsea / bottom valve installation function and features of fuel tanker
Time:2019-08-19
Views:2836
The tanker subsea/bottom valve, also known as the built-in safety stop bottom valve and the emergency shut-off valve, is a safety valve installed in the metal atmospheric pressure tank loading and unloading port of the liquid dangerous goods tank type vehicle. The valve is close to the root of the tank and is not used for other purposes. It is closed when not loading and unloading. The pressure-balanced seabed is used for multi-tank tank trucks, which can be used for separate loading and unloading of different oil tanks. The three-way design is designed to reduce the load, and the operation is simple, safe and reliable. Applicable mediums include oil and gas, vehicle and ship machinery manufacturing, aerospace, metallurgical chemical, transportation, electric power, central heating, vacuum, refrigeration, oil, gas, water, acid, etc.
product description:
The tanker subsea valve is installed at the bottom of the fuel tank body. It can be used for bottom loading and refueling. The internal pressure of the valve is small, the flow rate is large, and the valve body flange has a cutting groove. When the oil tank is accidental, the broken groove is unable to If the load is too large, the body pipe and the tank will be automatically disconnected, and the automatic centering plunger and the durable spring will remain sealed, and the medium in the tank will not leak, thus ensuring the safety of the tank. When there is no air source or other reasons can not be opened, the cylinder piston rod can be folded open and opened manually.
The subsea valve is mainly composed of a casing, a sealing mechanism, a transmission mechanism, a tank connecting flange and an outlet flange. The sealing mechanism extends into the interior of the tank, and the axial self-sealing is performed by the stainless steel spring force, so that the subsea valve is in a normally closed state, and the opening and closing operations are performed by the transmission mechanism. The root of the casing is provided with a fracture groove, which can effectively absorb the energy transmitted by the vehicle under the impact of the pipeline, and the valve body is broken from the fracture groove to separate the tank from the pipeline, thereby ensuring the integrity of the sealing mechanism, avoiding material leakage, and greatly improving transportation. Safety is adopted by many international and domestic oil companies, chemical liquid dangerous goods transportation and other enterprises.
At present, the operation control methods of subsea valves mainly include manual and pneumatic; the main materials are mainly aluminum alloy and stainless steel;
Tanker subsea valve technical parameters
Path: DN80, DN100 or 3", 4"
Working pressure: 0.6MPa
Maximum flow: 250/min
Body material: aluminum alloy
Opening method: manual (Q), pneumatic (S)
Working pressure: 0.6MPa
Maximum flow: 250/min
Body material: aluminum alloy
Opening method: manual (Q), pneumatic (S)
The subsea valve is a device that recovers the oil and gas generated during loading and unloading of oil. It can be installed directly on the tank top of the fuel truck or on the manhole cover. It can pass through a push rod and the bottom of the tank bottom.
The valve realizes mechanical linkage opening, and can also be controlled by the air source to open and close.
The submarine valve can recover all the oil and gas generated by volatilization of oil during loading and unloading into the oil tank of the reservoir area, avoiding oil and gas leakage, and condensing and reusing the oil and gas through other oil and gas recovery devices to achieve energy saving ring.
The purpose of the guarantee.
Tanker subsea valve function and features:
1. When the tank car tank is filled, the oil and gas recovery valve is opened, and the rising liquid level pushes up the oil and gas, and returns to the oil tank in the reservoir area through a series of oil and gas recovery systems.
1. When the tank car tank is filled, the oil and gas recovery valve is opened, and the rising liquid level pushes up the oil and gas, and returns to the oil tank in the reservoir area through a series of oil and gas recovery systems.
2. When the tanker unloads oil, the recovery valve allows the recovered gas to enter the tanker tank. In systems without oil and gas recovery facilities, air is allowed to enter the tanker tank.
3, high sealing, to ensure the safety of tank truck transportation.
4. Reasonable valve body design ensures high efficiency of oil and gas recovery.
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