Flange leakage solution for a petrochemical client

Background

The high-pressure heat exchanger pipe flange of the residual oil hydrogenation device in a refining plant, were installed by two synchronous precess, there was no standard installation specification, resulting in flange leakage in the operation of the temperature and pressure fluctuations, has brought great potential problems to the device.

Case study

In the overhaul installation of oil refining and chemical plants, due to the varying quality of construction personnel, the number of managers and technicians is small, the overhaul period is short, and the installation process of flange joints lacks supervision and quality control, resulting in the risk of leakage after the completion of flange joint assembly.

1, The construction personnel do not have standardized workflow and professional installation knowledge;

2, Managers and technicians do not have a strong sense of management, and there is no uniform implementation standard;

3, The fastening machine is single and few in number, which can't meet the requirement of bolt fixed torque fastening;

4, Process control without supervisors, quality standards can not be put into place.

Our solution

We developed standard operating procedures according to FLANGE JOINT INTEGRITY MANAGEMENT

Construction personnel 6, 1 on-site supervisors, standardized workflow, after the installation, the flange running without leakage.

Operation plate: bolt fastening process card

Installation tools: hydraulic tensioner PIT8-M82, four synchronous bolt fastening