No protective facilities, pressure container.
(1) repair should be put forward to site safety technical staff views and requirements, comply with the on-site operation safety management regulations, to meet the requirements of the safety protective gear wear.
Maintenance should be carefully before the media to be sex, on-site process with the valve and the power switch position, so that in the event of unexpected situations with the on-site personnel to properly handle, to avoid the situation to expand. At the same time, should also understand the scene whether hot and hot, if necessary, should apply for hot work procedures.
Should cut off the power supply associated with the container, and remove the fuse, set a clear safety operating mark.
Measures to prevent the vehicle from sliding can be used to move the tank (tank) car. For a container that can be rotated or has a movable part, the electrical switch should be cut off, or the fuse is removed, the switch is locked, and the switch is securely fixed.
High temperature or low temperature operation of the container, should be in accordance with the requirements of the operation of the slow cooling or heating, to prevent damage to the container.
All second instruments, equipment, tools and auxiliary equipment for inspection and repair shall be carried out in earnest for performance inspection, selection of models and their safety, stability, etc. shall meet the requirements of the relevant standards.
(2) pressure vessel inspection, repair personnel to enter the internal pressure of the container before use, the units must comply with the "Regulations" in the use of pressure vessel inspection requirements, prepare and cleanup work, not up to the requirements, the staff shall enter.
Enter the container before the operation must be within the medium removed, and confirm have no pressure. The blind plate with enough strength to cut off all the liquid, gas or steam source, set up a clear sign of isolation.
Containing flammable, combustion, toxic levels are extremely high, moderate hazard, container medium or heavy information medium, should make a careful replacement or cooking, neutralization, disinfection, cleaning after processing, analysis of flammable, or toxic media help then the results of the sampling vessel space should comply with TJ36-79 "Hygienic Standards for the design of industrial enterprises" and GB5044-85 "occupation contact poison hazard grading standards". The interval time of the analysis of the analysis should be in the use of units in the relevant system to make specific provisions containing flammable, flammable, explosive medium container, prohibit the use of air direct replacement. After passing the deal to open manholes and inspection hole, remove flammable, toxic and harmful gases might exist in the corner with container hair. And best mechanical analysis of oxygen content in the container, reach (18-23)% (volume) to enter the container for maintenance. When necessary, should also be equipped with ventilation, safety and other facilities.
Operating in the container, the use of lamps and tools of the power supply, voltage should be in accordance with the provisions of the GB3805 safety voltage. Low voltage explosion-proof lamp should not exceed 12V, the power supply voltage maintenance equipment and tools for more than 36V, should adopt rubber insulated flexible cords into the container, and the container wall contact part without joint. And the grounding wire must be reliably. Workers should wear insulated shoes, wear insulated gloves. Flame lighting is prohibited in the container.
When the temperature in the container is more than 50 degrees Celsius, it is not allowed to enter the container.
When someone is working in the container, there should be someone to monitor, and there is a reliable contact. Guardianship personnel should pay attention to the dynamics of personnel within the device, not without permission to leave the post.
If you need to take the basket into the tower operation, should carefully check the instruments used for lifting, the rope should have sufficient strength, the brake device should be sensitive and reliable, the diameter should be more than a body diameter of 200mm, to prevent the card in the tower to under the basket. If the basket case was stuck in the column. No risk forced lifting, the rope to pull off, a bad pull, making members fall accident. Rope tools and instruments and equipment for lifting inspection should also be solid and reliable, and should prevent the equipment from falling from the sky.
(3) high above 4m should use the personnel safety belt should wear safety helmet on cross operation. The erection of the scaffolding should be firm and reliable, the scaffolding on the laying of steel (wood) plates at both ends should be fixed, the gap between the scaffolding should be able to facilitate the maintenance of personnel operations.
(4) pressure vessel pressure test, pressure test and air tightness test and pressure test, should strictly abide by the test process, test site should be set up around the safety warning signs, irrelevant personnel do not enter the test zone. To carry out the pressure test of the container, must comply with the relevant provisions of the safety system, and to take reliable safety measures. Test system should be configured at least two measuring range of the same and the calibration of the pressure gauge.
Before the pressure test, the container flange and other parts of the fastening bolts should be equipped with a complete, well fixed, closed tube, hole with the blind plate must have sufficient strength. In the course of the test, it is forbidden to bring pressure to adjust the fastening nut or to carry out maintenance, so as to avoid the accident.
Replacement, cleaning does not meet the requirements of the best containing flammable and explosive medium container, prohibit the use of air as a test medium.
If abnormal situation is found during the test, the test should be stopped immediately, and then the process can be carried out.
(5) ray detection in the field. Must comply with the relevant provisions of security, set the security warning signs were in the effective protection distance, adopt strict protective measures, only confirm the warning area. No one can begin safety testing operations.
(6) welding repair in the container, the holder shall not be simple without insulation, to prevent the occurrence of accidents caused by short circuit. The welder can be used to further ensure the insulation rubber insulation pad. When welding should be configured to exhaust fan replacing air within the container, to prevent poisoning due to high temperature or welders fainted in the container.
The container should try to avoid using oxygen acetylene flame welding (cutting) etc.. If the welding (cutting) and work not yet completed. Prohibit welding (cutting) torch into the container, to prevent the welding (cutting) torch or valve hose leak in the container, and accumulated a large number of acetylene and oxygen, once the fire is easy to cause combustion and explosion.
When using the manual grinding wheel for grinding operation, we should pay attention to prevent the accident of the grinding wheel.
Process equipment network finishing release, reproduced please indicate the source.