How to perform pressure testing and leak detection on ammonia tanks at low temperature and normal pressure in the ammonia tank area, along with specific procedures
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Our company is about to start operations, and the low-temperature, atmospheric-pressure ammonia tanks in the area designed to hold nearly 10,000 M3 of ammonia have been constructed. We are now preparing for pressure testing to check for leaks. I would like to know what medium is best for such testing – should we use gas or water? I would be very grateful if you could provide guidance based on your own successful experiences ! ! ! !
Hydraulic and airtightness tests are required; the water level should be filled to 90% of the volume, and air is used for the airtightness test at a pressure of 0.013 MPa
Both water and compressed air can be used for pressure testing to check for leaks, but the container must be filled with water.
It should be tested with water, but the container must be filled with water.
First, conduct a vacuum test; then add water to carry out leakage and settlement tests. I’m not sure how low the temperature is – be sure to pay attention to this. Tests should be conducted based on the load-bearing capacity, and it’s necessary to calculate the ratio and differences between the medium and water. Also, the water level must not be filled to the top; 80% is the maximum amount. Specific details should be provided in the design specifications