"Propylene regulating valve, nominal diameter 150 mm." On July 22, refining a part of the I gas field, the work project Qingping topped with the sun, with the staff of Beijing Yutai Tiancheng Technology Co., Ltd., on the site to adjust the valve, valve The sealing points of equipment such as pumps and pumps are collected and prepared for the development and application of LDAR new technology - equipment leakage detection and repair system.

In order to implement the national “Twelfth Five-Year Plan” pollutant emission reduction requirements, Anqing Petrochemical Co., Ltd. has increased its efforts to reduce emissions and reduce pollution. Recently, a refining coking unit and a gas separation unit, liquefied gas, propane and propylene tank areas have been designated as companies. The first batch of pilot devices, in cooperation with Beijing Yutai Tiancheng Technology Co., Ltd., developed new technologies for leak detection and repair of applied equipment to improve energy conservation, emission reduction, safety and environmental protection.

When traces of volatile organic compounds such as light oil, liquefied gas, propane, and propylene are invisible to the naked eye, the nose can't smell, and the leaks cannot be checked in time, which not only affects the installation environment, but also causes loss of industrial resources. The leaked medium is flammable and explosive. The characteristics are also a major hidden danger in safety production. LDAR's new technology solves this problem.

LDAR's new technology uses internationally advanced leak detection and repair management software to seal the selected equipment and equipment, establish a computer database, and build files on the system. At the same time, on-site set detection point indications, description cards, and standardized management of equipment leakage detection. The tester regularly uses a portable tester to uniformly check the sealing points of the field equipment, and the detector with high sensitivity can make the device have a small leak point. The location of the leaked point and the amount of leakage are input into the LDAR system program to achieve equipment leakage supervision and quantitative information supervision. At the same time, through LDAR new technology leak detection, repair, re-test, data evaluation equipment leakage closed-loop management, the operation department classifies the sealing points with excessive leakage, and takes targeted measures to effectively manage the leakage points.

At present, the refinery has three sets of coking units that have completed the statistics of nearly 20,000 equipment sealing points, and nearly 5,000 sealing points of the I gas separation unit are also intensifying collection. According to the technical personnel of the manufacturer, after the first step of the field equipment sealing point statistics is completed, the development and application of new technologies such as system documentation and on-site inspection will be promoted in an orderly manner. “After the new equipment leak detection and repair technology is put into use, the leakage of the equipment will be greatly reduced, and the safety production will be better protected.” The head of the department is very optimistic about this new technology.

( Shu Jingqun )

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