Intelligent comprehensive test device for breather valve for oil tank truck

Abstract

The invention relates to an intelligent comprehensive test device for a breather valve for an oil tank truck. The intelligent comprehensive test device comprises a vacuum pump, an air compressor, a test container, a pressure stabilization tank, a human-computer interaction computer system and a high-accuracy gas flowmeter set; the pressure stabilization tank is connected with the test container; the pressure stabilization tank is also connected with the vacuum pump for vacuumizing the test container; the pressure stabilization tank is also connected with the air compressor for providing a positive pressure gas medium to the test container; the test container is provided with a leakage rate detection hole; the leakage rate detection hole is connected with the high-accuracy gas flowmeter set; and the human-computer interaction computer system for controlling the vacuum pump, the air compressor and the test container is connected with the vacuum pump, the air compressor and the test container. The intelligent comprehensive test device has the advantages of complete function, convenience and rapidness for mounting and low cost; and the designed test container can meet requirements of different specifications of internal and external breather valves for positive pressure and negative pressure opening tests, a valve seat sealing performance test and an overturn sealing performance test.

Description

technical field [0001] The invention relates to a device with complete functions, high integration, high degree of automation, and high measurement accuracy, which realizes real-time data human-computer interaction display and processing, quantitative and accurate measurement of leakage rate, improves detection efficiency and accuracy, and reduces detection cost. An intelligent comprehensive test device for breathing valves for tank trucks. Background technique [0002] During the road transportation of dangerous liquid media (such as oil products), one of the main safety accidents of oil storage tanks is the explosion accident caused by overpressure or vacuum damage. GB18564.1 clearly stipulates that the tank body carrying flammable and explosive media should be equipped with a breathing valve, and the breathing valve should not leak when the tanker overturns. The breathing valve for oil tanker is one of the necessary measures to reduce oil and gas emissions and ensure the...

AI Technical Summary

Problems solved by technology

[0004] Due to the special structure of the breathing valve, its opening pressure (including positive pressure opening exhalation and negative pressure opening inhalation) and valve seat leakage and other parameters are small, the measurement accuracy is high, and the conventional industrial valve pressure test device cannot meet the test requirements.

At present, the existing testing devices for breathing valves for oil tankers have insufficient functions, single test product specifications, low degree of automation, low measurement accuracy, complex and non-standard testing process (the test needs to be spliced ​​by multiple devices and multiple stations, such as built-in and The external breathing valve requires 2 sets of devices), high cost, low efficiency, and cannot meet the opening pressure (positive pressure and negative pressure), sealing performance of the valve seat, and overturning of the breathing valve for oil tankers stipulated in QC / T 1064 and BS EN 14595 The measurement requirements of functional items such as sealing, and the leakage measurement can only be qualitative and cannot achieve accurate measurement, which is not conducive to product quality improvement and wide application

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