Automatic testing machine of gas cylinder hydrostatic test

Abstract

The invention discloses an automatic testing machine of a gas cylinder hydrostatic test. The automatic testing machine structurally comprises a rack, and an automatic cylinder clamping device, a sealing rod, a plurality of proximity switches, a touch screen and a circuit control board are arranged on the rack, wherein the sealing rod is connected with a movable driving mechanism and a rotary driving mechanism; the movable driving mechanism is used for driving the sealing rod to move up and down to be inserted in a gas cylinder or retreated from the gas cylinder; the rotary driving mechanism is used for driving the sealing rod to rotate to be hermetically and rotationally assembled in a valve seat threaded hole of the gas cylinder so as to conveniently insert the sealing rod in the gas cylinder to inject gas or water to perform a hydrostatic test. The automatic testing machine has the beneficial effects that an automatic test is achieved; the sealing rod is screwed in the valve seat threaded hole of the gas cylinder by threads to seal the upper plane of the valve seat of the gas cylinder, a cylinder body is free of external force, and thus no cylinder body deformation caused by external force is generated; the automation degree is high, the labor intensity of an operator is reduced, and the turntable type automatic testing machine of a gas cylinder hydrostatic test does not need to be manually carried; the gas cylinder hydrostatic test efficiency is high, the measurement precision is high and the safe use of the gas cylinder is ensured.

Description

technical field [0001] The invention relates to an automatic testing machine for hydraulic pressure testing of liquefied petroleum gas steel cylinders and refillable welded gas cylinders. Background technique [0002] In accordance with international and national standards, hydrostatic tests are required for steel seamless gas cylinders, refillable welded gas cylinders, aluminum alloy seamless gas cylinders and wound gas cylinders, especially for liquefied petroleum gas cylinders. as important. In the prior art, the hydrostatic test manually moves a single gas cylinder to the test position, and manually opens the water injection and gas injection valves to complete the test. The existing gas cylinder hydrostatic test equipment has the following defects: [0003] 1. Place the gas cylinder and move it away from the test position by manual movement, which is labor-intensive, time-consuming, and low-yield. [0004] 2. During the test, first place the water injection pressure h...

AI Technical Summary

Problems solved by technology

[0003] 1. Place the gas cylinder and move it away from the test position by manual movement, which is labor-intensive, time-consuming, and low-yield

[0004] 2. During the test, first place the water injection pressure head on the plane of the gas cylinder valve seat, fill the cylinder with water, pressurize after filling the water, the compression force acts on the cylinder body through the water injection pressure head, and the gas cylinder is pressurized When the pressure is maintained, the bottle body is subjected to external force, and the cylinder body is deformed due to external force, which affects the test accuracy

[0005] 3. The completion of the test program is completed by manual control of each valve, which cannot be automated, resulting in high labor intensity and low efficiency.

[0006] 4. The mechanical pointer pressure gauge used to display the pressure has low gauge accuracy and low visual reading accuracy. Due to the above defects, the existing test equipment has low test accuracy, high labor intensity, and low shift output; the above test equipment cannot meet the requirements. The output of the production line of the bottle factory is 1,500 to 2,000 bottles, and the testing requirements can only be carried out on the produced gas cylinders, so there are serious safety hazards

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