Qilu Petrochemical's densely woven interlocking protection "safety net"

Sinopec News Network News June 22, Wang Hujun, Chief of the Instrument Management Section of Qilu Petrochemical Machinery Power Department, sorted out the interlock protection problems that were checked out in the early stage, and urged all units to promote rectification to ensure that the interlock protection system is compliant, safe and reliable.

Qilu Petrochemical always puts safety production in the first place, strictly grasps the safety management of the process interlocking protection system in the production process, implements joint investigations, selects the opportunity to deal with, and employees must pass the interlocking protection skill test to ensure that the company’s production facilities are in place.

List of problems in joint investigation

Qilu Petrochemical is a large-scale integrated refining and chemical enterprise with a wide range of equipment and complex processes.

"The interlocking protection system is an instrument system related to safe production.

In response to the problems exposed by the interlocking protection system, the company has been led by the Mechanical Power Department since February, and the production technology department has organized the special problem investigation and rectification of the interlocking protection system within the company.

The investigation of the interlocking protection system is a complex project involving all aspects and must be decomposed and implemented layer by layer

The workshop will report the problems found to the factory, and the factory will be connected with the corresponding instrument workshop of the operation and maintenance center to repeatedly check and confirm the important loops

Wang Hujun introduced that the problems found during the investigation of the interlocking protection system should be registered, and those that can be dealt with will be dealt with immediately, and those that need to be shut down will be handled this year for maintenance

　　Full-speed advance interlocking hidden danger treatment

　　While conducting interlock protection investigations, Qilu Petrochemical accelerates the processing of hidden dangers in the interlock protection system to ensure that no safety hazards remain in the production process

　　After the interlocking protection system was checked, the refinery reported 8 applications for long-term deactivation of the process interlocking protection circuits.

　　According to Lu Hua, Section Chief of the Process Technology Section of the Production Technology Department, some interlocking protection problems can be dealt with immediately during production operation, but some interlocking protections must be stopped before they can be dealt with

　　The Second Fertilizer Plant has 3 sets of production equipment.

　　On the basis of strengthening the existing single-point interlocking protection operation, the operation and maintenance center actively planned the transformation plan, and decided to use the second chemical fertilizer plant's shutdown maintenance opportunity to carry out the interlocking protection circuit transformation

　　During the shutdown of the second chemical fertilizer plant, the second operation and maintenance workshop of the operation and maintenance center quickly carried out renovations in accordance with the maintenance plan.

　　Xu Qiang, deputy director of the second operation and maintenance workshop of the operation and maintenance center, introduced that after the completion of the interlocking protection transformation of the second fertilizer plant, the interlocking protection system has achieved the expected purpose, and the production is safer and more reliable, which can effectively avoid accidental parking caused by single-point failures.

　　Precise training to pass the exam before getting on the job

　　In order to improve the reliability of the operation and operation of the interlocking protection system, the company requires strengthening the training of the interlocking protection knowledge for the operating staff, and the interlocking protection examination must be passed before the job

　　Operation all the way in strict accordance with the employee safety production skills training plan, in-depth promotion of accurate training of employees, carrying out safety production job training and basic skills training, and improving the pertinence and effectiveness of job training
.
The equipment also learns from operation all the way to master the operating habits of employees, learn from each other, learn from each other's strengths, and facilitate skilled operation
.

　　On May 23, the chlor-alkali plant invited instrument experts from the operation and maintenance center to teach basic knowledge of instrument measurement, interlocking protection management knowledge, safety instrument system application and flammable and toxic gas alarm setting specifications, professional management personnel, technical personnel, team leaders, 63 people including production backbones participated in the training, and through interactive communication, the difficult problems encountered in daily process management and operation were solved.
After the training, an examination was conducted
.

　　The catalytic cracking plant of the refinery sends the information related to the interlocking protection to the team, sorts out the problems that have occurred in the interlocking protection over the years, uses the time of the deputy to conduct accurate training, and organizes the technical staff to give the employees questions and exams on the basis of the accurate training.
, Has received very good results
.

　　According to Zhao Feng, director of the catalytic cracking workshop of the refinery, the ultimate goal of the instrument interlocking protection special training and examination is to enable employees to master instrument knowledge, especially in emergency handling conditions, to accurately operate and respond accurately to ensure device safety
.

　　(Sun Wanzhang)