According to the national standard "code for fire protection design of petrochemical industry > (GB50160-90) regulations," a fixed roof tank B liquid, application of flame arrestor and breather valve. Breather valve and flame arrestor are indispensable safety devices.
It can not only maintain the tank pressure balance, ensure the tank overpressure or vacuum in the rabbit when damaged, and can reduce the volatilization and loss in the tank. The tank pressure breathing valve is to maintain balance, reduce product safety and energy saving medium volatile, often associated with the use of flame arresters. The valve is mainly used for recycling pollution of the environment, endangering personal safety toxic and harmful gases.
1, storage: the above products are shipped to the site, if not installed or after the factory overhaul, rainproof facilities should be stored in a warehouse; emergency vent manhole series products not inverted during transportation.
2, maintenance:
A, the breathing valve series, the staff should be monthly on the tank top check, check valve plate, valve seat, valve stem, valve cover and other parts of any dust, dirt, if any, should be clean dry static; every six months, to the valve sleeve and the valve rod wipe of transformer oil.
B, each half staff should check the fire breathing manhole fire resistant layer at a time, if there is dirt, impurities clogging the fire resistant layer, fire resistant layer should be removed, remove stains with corresponding solvent, then rinse clean dry static fire resistant layer, put in ventilated dry and then put in the shell in.
C, more than the product shell inside and outside the surface of the paint should be re painted every year again.
It can not only maintain the tank pressure balance, ensure the tank overpressure or vacuum in the rabbit when damaged, and can reduce the volatilization and loss in the tank. The tank pressure breathing valve is to maintain balance, reduce product safety and energy saving medium volatile, often associated with the use of flame arresters. The valve is mainly used for recycling pollution of the environment, endangering personal safety toxic and harmful gases.
1, storage: the above products are shipped to the site, if not installed or after the factory overhaul, rainproof facilities should be stored in a warehouse; emergency vent manhole series products not inverted during transportation.
2, maintenance:
A, the breathing valve series, the staff should be monthly on the tank top check, check valve plate, valve seat, valve stem, valve cover and other parts of any dust, dirt, if any, should be clean dry static; every six months, to the valve sleeve and the valve rod wipe of transformer oil.
B, each half staff should check the fire breathing manhole fire resistant layer at a time, if there is dirt, impurities clogging the fire resistant layer, fire resistant layer should be removed, remove stains with corresponding solvent, then rinse clean dry static fire resistant layer, put in ventilated dry and then put in the shell in.
C, more than the product shell inside and outside the surface of the paint should be re painted every year again.
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