LPG skidding water replacement method operation process
Use water to replace the air in the tank first, and then use inert gas to replace the water in the tank. That is, water as an intermediate medium for replacement.
LPG skidding water replacement method operation process
Use water to replace the air in the tank first, and then use inert gas to replace the water in the tank. That is, water as an intermediate medium for replacement. Briefly describe the operation process is as follows: 1, from the drainage port to the tank to inject water, when the water from the vent overflow, that is, the air has been drained. 2, stop filling water, and then nitrogen from the vent into the tank, open the tank drainage port, the water in the tank under the pressure of nitrogen and self-weight from the drainage port out, until the water in the tank is drained. 3, close the drainage valve, continue to fill the tank with nitrogen, to the tank pressure 0.2 MPa, and always maintain a positive pressure nitrogen seal in the tank to prevent air from entering again. This method is simple, safe and reliable, with a short cycle time. Note: When replacing with water, the hydrocarbon pump is strictly prohibited from entering water.
Note: For tanks and skid systems that are newly put into use to destroy normal working conditions and put into use again, ensure that the air in the system is replaced and meets the requirements of the first filling.
