Water pressure test
Water pressure test is one of the common methods to test the pressure resistance of Carbon Dioxide Small Cylinder (Industrial Grade). During the test, the small cylinder is filled with water and sealed, and then a gradually increasing water pressure is applied to the cylinder through a water pump and other equipment. Usually, the water pressure is increased to a certain multiple of the rated working pressure of the cylinder, such as 1.5 times or even higher, in accordance with relevant standards and design requirements. During the pressurization process, closely observe whether the appearance of the cylinder is deformed or leaking. The water pressure test can simulate the pressure that the cylinder may withstand in actual use, and due to the incompressibility of water, once there are minor defects or weak links in the cylinder, they are more easily detected under the action of high-pressure water, thereby effectively evaluating the pressure resistance and overall sealing of the cylinder.
Air pressure test
In addition to the water pressure test, the air pressure test can also be used to test the pressure resistance of small carbon dioxide cylinders. Unlike the water pressure test, the medium used in the air pressure test is gas, generally dry, clean nitrogen or air. By filling the gas cylinder with a certain pressure and gradually increasing the pressure to the specified value, the state of the gas cylinder under the action of gas pressure is observed. The advantage of the gas pressure test is that it can more directly reflect the pressure resistance of the gas cylinder when it is actually filled with carbon dioxide gas, but due to the compressibility of the gas, the risk of the gas pressure test is relatively high, and it needs to be carried out under strict safety protection measures to prevent the explosion risk caused by the sudden rupture of the gas cylinder. During the test, high-precision pressure sensors and monitoring equipment will be used to accurately measure and record the pressure changes in the gas cylinder and possible pressure fluctuations, so as to judge the pressure resistance of the gas cylinder.
Non-destructive testing technology assistance
When conducting pressure resistance tests, non-destructive testing technology is often combined to more comprehensively evaluate the quality and pressure resistance of the gas cylinder. For example, ultrasonic testing, radiographic testing and other methods are used to detect key parts such as welds and wall thickness of gas cylinders. Ultrasonic testing can detect whether there are defects such as cracks and inclusions inside the gas cylinder by emitting and receiving ultrasonic signals. These defects may affect the pressure resistance of the gas cylinder. X-ray detection can intuitively display the internal structure and defects of the gas cylinder. By analyzing the X-ray film, tiny defects hidden in the wall of the gas cylinder can be found. As an auxiliary means of pressure resistance test, non-destructive testing technology can detect potential problems in advance without destroying the structure of the gas cylinder, provide a more accurate reference basis for the pressure resistance test, and ensure the reliability of the test results.
Fatigue test
In order to simulate the pressure resistance of small carbon dioxide gas cylinders during long-term repeated filling and deflation, fatigue test is also an indispensable test. In the fatigue test, the gas cylinder is placed on a special test equipment, and the gas cylinder is repeatedly filled and deflated according to a certain frequency and pressure range. After thousands or even tens of thousands of cycles, observe the fatigue damage of the gas cylinder, such as whether crack expansion occurs, material performance degradation, etc. Through fatigue testing, the reliability and safety of the gas cylinder in long-term use can be evaluated, and the fatigue life it can withstand can be determined, which provides a scientific basis for the rational use and regular replacement of small carbon dioxide gas cylinders in industrial production, thereby ensuring the safe and stable operation of the production process.
Through the comprehensive use of various methods such as water pressure test, air pressure test, non-destructive testing technology and fatigue test, the pressure resistance of Carbon Dioxide Small Cylinder (Industrial Grade) can be comprehensively and accurately tested to ensure its safe and reliable use in various industrial applications.
