Intelligent rotating plate type quick hydrostatic test line for liquefied petroleum gas cylinders

Abstract

The invention relates to the technical field of safety of liquefied petroleum gas cylinders, in particular to an intelligent rotating plate type quick hydrostatic test line for liquefied petroleum gas cylinders. The intelligent rotating plate type quick hydrostatic test line comprises a multi-station automatic tester, a cylinder feeding conveying belt, a cylinder discharging conveying belt, a liquid spraying capacity measurement device, a cylinder weighing device and a dynamic cold reading device. A detection device at each station of the multi-station automatic tester is provided with a PLC (programmable logic controller) control unit and transmits data signals to a master computer. The cylinder feeding conveying belt is arranged on one side of one station of the multi-station automatic tester, and a cylinder feeding push cylinder is arranged at the tail end of the cylinder feeding conveying belt and used for pushing cylinders to the stations. The cylinder discharging conveying belt is arranged on one side of the station close to the cylinder feeding conveying belt. The intelligent rotating plate type quick hydrostatic test line has advantages that high-precision intelligent instruments and a manual intelligent test method are adopted for substitution of a visual test method, and accordingly test precision is greatly improved, and test speed is increased greatly.

Description

technical field [0001] The invention relates to the technical field of safety of liquefied petroleum gas cylinders, in particular to an intelligent turntable type fast detection line for hydrostatic testing of liquefied petroleum gas cylinders. Background technique [0002] ISO4706-1-2008 "Refillable Welded Steel Cylinders" formulated by the International Organization for Standardization, GB5842-2006 "Liquefied Petroleum Gas Cylinders" formulated by the Chinese government, GB8334-2011 "Periodic Inspection and Evaluation of Liquefied Petroleum Gas Cylinders", GB / T9251 -2011 "Gas Cylinder Water Pressure Test Method", and the special equipment safety technical specification TSG R0006-2014 "Gas Cylinder Safety Technology Supervision Regulations" and other standards all stipulate that whether it is the factory inspection or regular inspection of liquefied petroleum gas cylinders, water pressure must be done. However, in production practice, these standards have not been implement...

AI Technical Summary

Problems solved by technology

As mentioned above, most of the existing hydraulic testing equipment is single equipment, and the inspection time for each steel cylinder is about 5 minutes, that is, a maximum of 12 steel cylinders can be inspected per hour. Calculated in 8 hours, only 96 steel cylinders can be inspected per shift , which is far from meeting the requirements of a steel cylinder manufacturer with a shift output of about 2,000 bottles per shift

[0006] 2) The detection accuracy is difficult to guarantee

At present, the sealing form of the steel cylinder in the hydrostatic test adopts the bottle mouth pressure sealing method, and this pressure inevitably acts on the bottle body, that is to say, the bottle body is subjected to an additional force in addition to the test pressure during the hydrostatic test. Therefore, the test data cannot correctly reflect the actual pressure resistance of the cylinder

[0008] Based on the above reasons, steel cylinder manufacturers have to change the "one-by-one testing" of the hydrostatic test required by the national standard into "sampling testing" or no testing at all, resulting in a large number of steel cylinders that have not passed the hydrostatic test flowing into the society, which is an explosion accident. The occurrence of the great hidden danger

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