Detailed commissioning plan for PVC production polymerization workshop

The test run plan should be provided by the technology supplier. Moreover, the plan will be different depending on the process. It involves technical secrets and no one will provide it lightly. You have to work hard yourself.

Indeed, as the poster above said, each craft has its own characteristics, but there are still some similarities.: 1. Preparations before commissioning, including confirmation of equipment status, confirmation of public engineering conditions, pipeline purging and replacement, raw and auxiliary materials, personnel organization, safety fire protection, emergency response, etc. ； 2. Water combined transportation 3. Monomer replacement 4. Feeding and commissioning (if the DCS is done well, follow the procedure in one step), temperature rise, recovery, stripping, discharge drying, etc. . . . This is probably the case with the levitation method!

I can give you more details upstairs. After all, it’s my first time and I don’t have enough experience.

I have a plan here for reference only! ! Hope it helps. . First, safety and environmental inspection and confirmation: Confirm that the safety protection facilities inside the device meet the requirements and are in working condition ； After the system has passed the air tightness test and purging, it will be replaced separately and confirmed to be qualified. ； The above projects are supervised by the technical team. Confirm the environment, equipment, and process conditions. Confirm that the site is clean and tidy, and that there are no debris on the ground or platform. ； All construction maintenance projects must be completed and accepted by relevant personnel to confirm whether they are qualified and whether they are qualified for driving. The inspection includes: Manhole sealing status, various interface sealing status, pump operation status, air tightness, water transportation status, etc. ； Confirm pipeline and process status, including: Whether the inspection blind plate is removed, whether the additional blind plate is installed, whether the opened flange is tightened, whether the material, size and pressure level of the gasket comply with the regulations. If any problems are found, they should be solved in time and a dedicated person will be responsible for acceptance. ； Operators should carefully check the instruments, pipes, valves, equipment, etc. in their position ； Confirm the operating status of the single machine and whether it is qualified for driving ； The above projects are supervised by the technical team. Secondly, confirmation of raw and auxiliary materials 1. The supply of raw material vinyl chloride is guaranteed ； b. The quality of ion-free water meets production requirements ； c. Dispersants, terminators, defoaming agents, complexing agents, heat stabilizers and other auxiliary materials have been prepared and supplied in sufficient quantities. ； d. Sufficient supplies of polymerization inhibitors and scale inhibitors are available. 2. Before starting a public project, you should confirm whether the water, electricity, steam and other valves in the boundary area are open. Start-up polymerization This position is to produce PVC resin from VC monomer in the polymerization kettle. After the polymerization reaction is completed, the PVC slurry is transported to the mixing tank and unreacted monomer is recovered at the same time. 1. Check and confirm a. Confirm whether the liquid levels of the single tank, ion-free water tank, hot water tank, and each additive meet the requirements for mass production. b. Confirm that all equipment and instruments are normal and in working condition ； c. Confirm that each public project meets the requirements ； 2. Contact and notify the workshop to schedule the aggregation to start feeding materials, and contact relevant departments to prepare to provide steam, nitrogen, instrument air, and industrial water. 3. System tightness test and nitrogen replacement a. Use nitrogen to replace the system to contain O2

It is recommended that you download the "Ministry of Chemical Industry's Regulations on Production Preparation and Commissioning of Large-scale Equipment in the Chemical Industry" and then write it yourself based on the actual situation. After all, you only have a deep understanding of what you handle. This post was last edited by limingshuguang on 2008-1-15 09:20 ]

Another point is to use the "reverse drive". That is, before the polymerization kettle is put into use, buy the finished PVC powder and mix it with water in the discharge tank to make process materials. First try the stripping centrifugal drying packaging device. The evaporation device in the ion membrane is also suitable for the "reverse drive""

:L Does anyone have an electronic version of the dry gas hydrogen production feeding test plan?

Which design institute do you belong to? I will provide you with what system your DCS uses.

This forum has sample materials for download, and then compile them according to the actual situation of the product, trying to be as comprehensive as possible