GB/T9251-2021 External Water Pressure Testing Machine High pressure gas cylinder
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Detailed Product Description
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This device conducts external hydrostatic tests on various high-pressure gas cylinders. It uses an industrial control computer to control the entire set of operation tests including empty cylinder weighing, water filling, full cylinder weighing, and hydrostatic tests. Through these tests, the volumetric residual deformation rate of the gas cylinders can be accurately measured to ensure their safe use. The product is designed and manufactured in accordance with GB/T9251-2021 "Test Method for Hydraulic Pressure of Gas Cylinders". It is applicable to the regular inspection of compressed natural gas cylinders and cylinders of different types and specifications.
The external pressure test machine for gas cylinders is mainly used
to conduct pressure resistance tests on the tested gas cylinders
and obtain the volumetric residual deformation rate of the tested
cylinders at the same time. It is controlled by a computer. Its
working principle is: The test bottle is placed in a specially
designed water jacket. A high-pressure pump is used to pressurize
the test bottle. Once the set pressure is reached, it automatically
enters the pressure-holding state to conduct a pressure resistance
test on the test bottle. At the same time, the gas cylinder expands
in shape under the test pressure, squeezing part of the water in
the water jacket into the measuring cup. This part of the water
volume is the volume deformation of the test bottle. The water
volume is transmitted to the industrial control computer through
the system. After the gas cylinder is depressurized, the elastic
deformation disappears, and the water in the measuring cup returns
to the water jacket. However, the remaining water volume in the
measuring cup is still more than that before the gas cylinder is
pressurized. This extra water volume is the residual deformation of
the test bottle's volume, which is transmitted to the industrial
control computer through the water volume collection system. The
ratio of the volumetric residual deformation to the total
deformation is the volumetric residual deformation rate of the gas
cylinder. |
| Product Tags: GB/T9251-2022 water pressure testing machine high pressure gas cylinder tester industrial external pressure testing equipment |
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