【Daily Question】 【AC Version for Static Equipment...Question 165】 June 14, 2019 Multiple-choice questions...Essay questions
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【Daily Question】【AC Version for Static Equipment...Question 165】June 14, 2019 Multiple-choice questions...Essay questions .............................................................Reward rules: 3 Wealth points for participation, 5–10 Wealth points for answers that are close to the correct ones. ........................................................................... For jacketed vessels, when determining the pressure test pressure for the jacket, should a stability check be performed on the inner cylinder? If the stability of the inner cylinder is unclear, how should it be handled? ...................................................................... Answer: ① Necessary. ② Generally, it is required that the pressure in the inner cylinder be maintained constant while applying pressure to the jacket, so that at any point during the entire hydrostatic testing process (pressure increase, pressure maintenance, and pressure release), the pressure difference between various pressure chambers does not exceed the allowable value. This requirement along with the allowable pressure difference value should be specified in the drawings.
①Needed； ②Generally, when specifying the jacket water pressure, it is required that the inner cylinder maintains a constant pressure, so that at any point during the entire hydrostatic testing process (pressure building, pressure holding, and pressure release), the pressure difference across each pressure chamber does not exceed the allowable value; this requirement along with the allowable pressure difference value shall be indicated in the drawings.
Yes； Generally, when specifying the jacket water pressure, it is required that the inner cylinder maintains a constant pressure, so that at any point during the entire hydrostatic testing process (pressure building, pressure holding, and pressure release), the pressure difference across each pressure chamber does not exceed the allowable value; this requirement along with the allowable pressure difference value shall be indicated in the drawings.
①Needed； ②Generally, when specifying the jacket water pressure, it is required that the inner cylinder maintains a constant pressure, so that at any point during the entire hydrostatic testing process (pressure building, pressure holding, and pressure release), the pressure difference across each pressure chamber does not exceed the allowable value; this requirement along with the allowable pressure difference value shall be indicated in the drawings.
It is required that, under normal conditions regarding the jacket water pressure, the inner cylinder maintain a constant pressure, so that at any point during the entire hydrostatic testing process (pressure increase, pressure maintenance, and pressure release), the pressure difference across each pressure chamber does not exceed the allowable value; this requirement along with the allowable pressure difference value must be specified in the drawings.
Answer: When determining the pressure test pressure for the jacket, a stability check is required. When the stability of the inner cylinder is uncertain, it is generally required that the inner cylinder be held under pressure by the jacket water pressure, so that at any point during the entire hydrostatic testing process (pressure increase, pressure holding, and pressure release), the pressure difference across each pressure chamber does not exceed the allowable value; this requirement along with the allowable pressure difference value must be specified in the drawings.
①Stability verification is required. ②Generally, when specifying the jacket water pressure, it is required that the inner cylinder maintains a constant pressure, so that at any point during the entire hydrostatic testing process (pressure building, pressure holding, and pressure release), the pressure difference across each pressure chamber does not exceed the allowable value; this requirement along with the allowable pressure difference value shall be indicated in the drawings.
It is necessary to ensure a pressure difference between the inside and outside for conducting pressure tests
①Stability verification is required. ②Generally, when specifying the jacket water pressure, it is required that the inner cylinder maintains a constant pressure, so that at any point during the entire hydrostatic testing process (pressure building, pressure holding, and pressure release), the pressure difference across each pressure chamber does not exceed the allowable value; this requirement along with the allowable pressure difference value shall be indicated in the drawings.
Needed； When the jacket water pressure is specified, the inner cylinder must maintain a constant pressure, so that at any point during the entire hydrostatic testing process (pressure increase, pressure maintenance, and pressure release), the pressure difference between the various pressure chambers does not exceed the allowable value. This requirement together with the allowable pressure difference value must be indicated in the drawings.
①Needed； ②Generally, when specifying the jacket water pressure, it is required that the inner cylinder maintains a constant pressure, so that at any point during the entire hydrostatic testing process (pressure building, pressure holding, and pressure release), the pressure difference across each pressure chamber does not exceed the allowable value; this requirement along with the allowable pressure difference value shall be indicated in the drawings.