How is the calculated pressure of a boiler determined?
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I would like to ask about the calculated pressure for a boiler: p≥p0+Δpa. p0 is 1 MPA, and Δpa is the design additional pressure (the setting pressure of the safety valve) in MPA. Since the setting pressure of the safety valve is currently 1.04 MPA, should the calculated pressure be 2.04 MPA? Then why is the calculated pressure in some calculation sheets 1.04?
Got it; there are revisions in the errata sheet for GB/T16508-2013.
Please refer to Clause 6.1.9 of the boiler regulations: in cases where the pressure is greater than 0.8 MPa, the set pressure is 1.04 times the operating pressure. Additional pressure is applied only when it is less than or equal to 0.8 MPa.
Personal opinion: It should be the difference between the set pressure and the rated operating pressure; an additional pressure must be applied regardless of the actual pressure, with only the way this value is defined varying. The definition of additional pressure in the calculation section of GB/T16508 is unclear; a precise definition is needed. The standard’s corrections mention the word \"consider\", so does that mean it can be ignored? Please discuss this
Yes! I think so too. Can we omit that 0.04 MPa and just use the rated pressure instead?
Goodbye. I think it doesn’t really matter whether or not to include that 0.04 MPa in the calculations. Could any experts give me some advice? Thank you
I’ve just started learning about *16508 and haven’t yet dealt with calculations. Are you familiar with the four main types of calculations related to boilers: thermal calculations, strength calculations, smoke and air resistance calculations, and hydrodynamic calculations? Could you provide some relevant materials? Please send them to 774690324@qq.com. Thank you!