"Three checks" means checking design loopholes, hidden dangers of construction quality and unfinished projects;
The "four decisions" are to determine the tasks, the responsible units and personnel for problem solving, the treatment measures and the rectification period.
In the early stage of construction, design omissions are mainly checked, mainly by the construction unit and design institute.
During construction, the supervision company is mainly responsible for investigating quality hidden dangers and defects.
In the later stage of the test, the unfinished project was mainly investigated, mainly by the construction unit.
Three inspection work should be detailed:
According to the design requirements, each discipline shall check whether the equipment, pipes, valves, instruments, electrical and civil works meet the design requirements one by one according to the drawings; Whether the process is reasonable; Whether the process is smooth; Whether the operation is convenient; Whether the orientation of the equipment is wrong; Whether there are loopholes in pipeline welding; Whether the blind plate, flange and stinger meet the requirements; Whether the valve direction is reversed; Whether the lightning protection and anti-static devices meet the requirements; Whether the valve switch is flexible; Whether the installation position and quantity of pressure gauges and thermometers meet the requirements; Wait a minute.
Principles to be followed in three investigations and four determinations
Check for design omissions. In addition to the designers, the managers, operators and industry experts of the construction unit must attend.
Check the hidden dangers of construction quality. It is produced in the part that does not operate according to the regulations and standards, which damages the use function and safety function. Construction personnel, quality inspection personnel and supervision personnel should be responsible for this, but professional supervision engineers should give leading opinions.
Check the unfinished project. The construction unit is the main responsibility, so the construction unit should check the design as soon as possible and check the missing items.
Four tasks must be accurate:
Determine the content of four decisions by the problems found in three.
Fourth, the technical person in charge of production preparation will demonstrate the problems found one by one with the design and construction units. All projects that affect the start-up, normal production, safe production and clean production must be added or rectified to add icing on the cake. Projects that can or cannot be promoted cannot be legally implemented to ensure the progress and cost of the project. For added or modified items, especially major issues (such as equipment start-up, increase or modification of control scheme, change of process flow, increase or decrease of pipelines with diameters above 1 50mm, etc.). ), need to repeatedly demonstrate, accurately determine the task.
Three investigations and four preparations
Personnel preparation (including various professional and technical personnel, engineers, supervisors, operators, etc.). )
Data preparation (PID, design drawings, construction drawings, equipment drawings, installation data, standard documents and manufacturer data, etc.). )
Preparation of labor protection articles (labor protection articles, safety ropes, rope ladders, etc.). )
Prepare measuring tools and other tools (feeler gauge, caliper, tape measure, level, etc.). )
Safety and three inspections and four fixed content training (professional knowledge training, safety precautions and emergency response ability training)
Division of labor preparation (personnel division, regional division of labor, time master plan)
HSE three checks and four decisions
Safety is very important in the three inspections and four determinations. Therefore, when necessary inspections are carried out under some unsafe conditions, we must do the following:
1. Use a backpack to carry documents, so that your body can touch the ladder at three o'clock when climbing the ladder.
2. Use safety rope outside the railing; For example, when climbing pipes other than handrails.
3. Don't cross the railing (any temporary or permanent).
4. Appropriate tools at work; All work should use the right tools. The process team has a toolbox on site to store and keep tools. .
5. Wear labor protection clothes when entering the site.
You must have a license to do any work.
7. It is forbidden to enter any container or confined space, such as tower foundation and storage tank, without a license and an external guardian. .