Why should oil tank trucks be equipped with sea valves?
Time:2022-09-13
Views:71
The full name of the subsea valve is the built-in safety check bottom valve, also known as emergency block valve and emergency shut-off valve, commonly known as subsea valve and tank bottom valve.
The subsea valve is mainly composed of shell, sealing mechanism, control mechanism, tank connecting flange and outlet flange. The control mechanism is composed of valve stem, valve seat and driving device. During installation, the sealing mechanism is installed inside the tank and connected with the tank bottom plate through the tank connecting flange; The sealing mechanism uses the elastic force of stainless steel spring for axial automatic sealing to make the bottom valve in a normally closed state; The opening and closing operations are performed by the control mechanism.
Under the condition of bottom filling, the submarine valve has two structural forms: pressure balanced and non pressure balanced: the pressure balanced steam bottom valve can prevent the medium from flowing into the independent tank, and the submarine valve needs to be opened first when loading at the bottom; The non pressure balanced subsea valve allows the medium to flow into the independent tank through its own filling pressure. Because the pressure in the valve is small, it has the characteristics of large flow and short time when refueling or draining.
After the tank truck is installed with the Shanghai bottom valve, it will be more convenient and safe to drive on the highway. Life is the most precious thing of mankind. For your safety, Hubei chengli special purpose vehicle Co., Ltd. reminds all drivers of oil trucks to add Shanghai bottom valve to their oil tankers. Hubei Chengli strictly abides by national regulations, and every oil tank truck produced must be installed with submarine valves.
It can be seen from the structural characteristics and working principle of the subsea valve that, in the event of an accident of a tank car, the bottom valve can effectively protect the safety of operators, equipment and the surrounding environment, which conforms to the active safety technical requirements of not harming itself and the other party, and the passive safety principle of protecting itself and the other party, It is the bottom line of technical equipment to realize the safe and reliable operation of atmospheric tank cars for hazardous chemicals transportation.
GB 18564.1-2006 tank vehicles for road transport of liquid dangerous goods Part 1: technical requirements for metal atmospheric pressure tanks issued by the mobile pressure vessel sub Technical Committee of the national pressure vessel standardization committee clearly stipulates that the loading and unloading port at the bottom of the tank body of the tank vehicle for road transport of liquid dangerous goods should be equipped with an emergency shut-off valve. The emergency shut-off valve installed at the loading and unloading interface at the bottom of the metal atmospheric tank of the tank type vehicle for liquid dangerous goods is not only a control valve for discharging and inhaling the medium of dangerous chemicals into the tank, but also an essential safety accessory for the tank body of the atmospheric tank type vehicle for transporting dangerous chemicals.
Hubei chengli special purpose vehicle Co., Ltd. warmly reminds drivers who drive tank cars of liquid dangerous goods that for your safety and that of others, please install Shanghai bottom valve on your car. In this way, not only your life safety but also the life safety of others will be protected.
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