1. the concept of pressure vessel
Pressure vessel is to point to full-dress gas or liquid, bear the weight of the airtight equipment of constant pressure, its limits regulation is more than for highest actuating pressure or be equal to 0.1MPa (gauge pressure) , and the liquid stationary container that the gas that the product of pressure and cubage is more than or is equal to 2.5MPa•L, liquefacient gas and prep above of top job temperature perhaps are equal to standard boiling point and movable type container; Full-dress nominal pressure is more than or be equal to 0.2MPa (gauge pressure) , and the gas that the product of pressure and cubage is more than or is equal to 1.0MPa•L, liquefacient gas and standard boiling point are equal to or under gas cylinder of 60 ℃ liquid; Oxygen cabin.
Heat exchanger of the water tank that common pressure vessel has cylinder of gas tank, cent, accumulator, sky to distribute equipment, helix board, compressor, gas cylinder, more than heat boiler, evaporate fries type of segregator, intake air heater, heater, envelope boiler.
2. relevant code
(Technology of 1) pressure vessel security is censorial regulations (boiler of bureau of qualitative ability inspect is sent [1999] 154 date) .
(Safety of 2) gas cylinder is censorial regulations (boiler of bureau of qualitative ability inspect is sent [2000] 250 date) .
3. the classification of pressure vessel
Pressure vessel is divided by complete grade kind. Assess of aptitude of manufacturer of design production pressure vessel and pressure window examine, the requirement such as management, as safe as pressure vessel also grade classifies concerned couplet. Pressure vessel is complete grade classification depends on the pressure of susceptive of pressure vessel place, medium harm sex that store and cubage. Specific classification is as follows:
(1) the 3rd kind of pressure vessel:
① high pressure (100 MPa of 10 MPa≤p ＜ ) container.
② middling pressure (10 MPa ＝ of 1.6 MPa≤p ＜ and noxiousness degree is Chu Fang exceeding the container that endangers medium with height.
③ middling pressure stores container, be confined to combustible or noxiousness degree is in spend harm medium, and PV product is more than 100 MPa•m3.
Container of reaction of ④ middling pressure, be confined to combustible or noxiousness degree is in spend harm medium, and PV product is more than be equal to 0.5 Mpa•m3.
⑤ low-pressure container, be confined to combustible or noxiousness degree is exceeding endanger medium with height, and PV product is more than be equal to 0.2MPa•m3.
⑥ high pressure, middling pressure is in charge of heat boiler of shell type beyond.
Pressure vessel of glassed steel of ⑦ middling pressure.
Level of ⑧ use intensity is extremely high (tensile strength ≥54 MPa) the pressure vessel that material makes.
Pressure vessel of ⑨ movable type, include tank car of railroad, highway, trailer and container of coal tub type.
Previous12 Next
