压力容器耐压试验与泄漏试验（Pressure withstand test and leakage test of pressure vessel）.docVIP

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压力容器耐压试验与泄漏试验（Pressure withstand test and leakage test of pressure vessel）.doc

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压力容器耐压试验与泄漏试验（Pressure withstand test and leakage test of pressure vessel）

压力容器耐压试验与泄漏试验（Pressure withstand test and leakage test of pressure vessel） Regulations in GB150: Leak test: 1. Leak tests include air tightness test, ammonia leak test, halogen leak test and helium leak test. 2, the degree of toxicity is extreme, highly hazardous or not allowed to trace the leakage of containers, should be tested after the pressure test leakage test. 3. The design unit shall present the methods and technical requirements for vessel leak test. 4 when the leak test is needed, the test pressure, the test medium and the corresponding inspection requirements shall be registered on the drawings and the design documents. 5 、 air tightness test pressure equal to design pressure. Pressure vessel airtightness test requirements: 1, medium toxicity to extreme, high degree of harm or design does not allow micro leakage of pressure vessels, must be airtight test. 2. The tightness test of pressure vessel shall be carried out after the hydraulic test is qualified. A pressure vessel designed for atmospheric pressure test shall be specified in the design drawings 3 carbon steel and low alloy steel pressure vessel, its test gas temperature should be no less than 5 degrees, other materials pressure vessel according to design drawings. 4. The gas used for pressure vessel airtightness test shall comply with the regulation of safety supervision procedure for pressure vessel. 5 、 when the pressure vessel is tested for tightness, the safety accessories shall be assembled in general. If the safety accessory is to be assembled on site before commissioning, it shall be noted in the airtight test report of the quality certificate of the pressure vessel, and the field tightness test shall be carried out again after the fitting of the safety accessory. 6. The pressure vessel shall be inspected without leakage, and the pressure shall be no less than 30min, which is qualified. The selection of design pressure is shown in table 3-1 Table 3-1 design pressure selection table Type desi