⑩ globose storage tank (cubage ≥50 M3) store with microtherm liquid container (cubage ＞ 5 M3) .
(2) the 2nd kind of pressure vessel
Container of ① middling pressure.
② low-pressure container, be confined to noxiousness degree to be exceeding endanger medium with height.
Container of reaction of ③ low pressure and low pressure store container, harm medium is spent in be confined to combustible medium or noxiousness degree to be.
④ low pressure is in charge of heat boiler of shell type beyond.
Pressure vessel of ⑤ low-pressure glassed steel.
(The first kind of pressure vessel divides 3) the 2nd, the other and low-pressure container outside the 3rd kind of pressure vessel.
4. the regular inspection requirement of pressure vessel and accessory
(The pressure vessel that 1) uses at least one times every year to be in has fixed and online examination.
(2) stops to using pressure vessel when machine examine: Safe grade is one, 2 kinds, every 6 years at least one inside, exterior examine; Safe grade is 3 kinds, every 3 years at least one.
(3) is right stationary pressure vessel, every time when interior examines, undertake compression experiments at least. To movable type pressure vessel, at least one times 6 every years compression experiments.
(4) relief valve examines every year at least.
(5) is fast to corroding speed, use time is too long, stop to run above 2 years, have visible defect, often change the pressure vessel such as use medium, should shorten examine periodic.
① is full-dress the gas cylinder of run-of-mill gas, examine 3 every years.
② is full-dress caustic gas cylinder, phreatic water gas cylinder, and the gas cylinder that often contacts with seawater, examine 2 every years.
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