What is the safe operation method of pressure vessel?

The safe production and reliability of pressure vessels are closely related to the correct use and operation of vessels. In addition to setting up special management organizations and personnel to manage the safety technology of containers and establishing a sound safety management system, container users should also put forward specific requirements for container operators and take control measures in terms of use conditions, environmental conditions and maintenance conditions during container operation to ensure the safe operation of containers.

Although the technical performance and working conditions of various pressure vessels are not consistent, their operation has the same safety operation points, and the operators must operate according to the prescribed procedures and requirements. The requirements for safe operation of pressure vessels mainly include:

(1) The pressure vessel operator must obtain the pressure vessel operator certificate issued by the local safety supervision department before he can independently undertake the pressure vessel operation;

(2) Pressure vessel operators should be familiar with the technological process of this post, the structure, category, main technical parameters and technical performance of the vessel, operate in strict accordance with the operating procedures, master the handling methods of general accidents, and fill in relevant records carefully;

(3) The pressure vessel should operate smoothly;

(4) It is forbidden to run the pressure vessel over temperature and pressure;

(5) It is forbidden to disassemble and compress bolts under pressure;

(6) During the operation of the container, patrol inspection shall be carried out, and the abnormal state of the equipment in operation shall be found in time, and corresponding measures shall be taken to adjust or eliminate it. The inspection contents shall include process conditions, equipment conditions and safety devices, etc.

(7) Correct handling procedures in case of emergency.

12. Safety inspection in the operation of pressure vessels

Special operators of pressure vessels must check the pressure vessels frequently in the process of operation, so as to find out the abnormal conditions in the operation and equipment in time, take corresponding measures to adjust and eliminate them, prevent the expansion and continuation of abnormal conditions, and ensure the normal operation of pressure vessels.

What inspections are carried out on pressure vessels in operation? The inspection contents include process conditions, equipment conditions and safety devices.

As far as process conditions are concerned,

Mainly check the operating conditions, including whether the operating pressure, operating temperature and liquid level are within the specified safe operating range; Chemical composition of working medium, especially those that affect the safety of container (such as stress corrosion, pressure and temperature rise, etc.). ) meets the requirements.

Equipment condition

Mainly check whether there is leakage or leakage at each connection part of the container; Whether the container has defects such as plastic deformation and corrosion or suspicious signs; The container and its connecting pipe are free from vibration and wear.

safety equipment

Mainly check whether the safety pressure relief device of pressure vessel and safety-related measuring instruments (such as thermometer, pressure gauge, weighing instrument for measurement, flowmeter, etc.) are in good condition. For example, whether the pressure-taking pipe of the pressure gauge is leaking or blocked, whether the spring of the spring-type safety valve is rusted, whether the surfaces of safety devices and measuring instruments are covered with grease or sundries, whether they meet the requirements of anti-freezing, sun protection and rain protection, whether these devices and instruments are within the specified allowable service life and whether their accuracy meets the requirements.