Vacuuming

We carry out vacuum evacuation of cryogenic tank insulation spaces with our own equipment. We can also generate vacuum for larger production requirements when needed. The service also includes fully automatic, rentable vacuum stations monitored 24/7.

Vacuuming as a service and vacuum stations for rent

Storing liquefied gases, such as LNG (liquefied natural gas) or industrial cryogenic gases, requires precisely controlled conditions. One of the key factors is the vacuum in the tank's insulation space, which enables effective thermal insulation and prevents premature evaporation of the gas. We carry out vacuum evacuation with our own equipment, for example in vacuum insulation for low-temperature transport and storage tanks. When needed, our vacuum pumps can also generate vacuum for larger production requirements. We also offer vacuum evacuation as a service using rentable vacuum stations. The service includes equipment monitoring, on-site installation, and guidance. The vacuum station is fully automatic, so the process is controlled 24/7. A certificate confirming the development and stability of the vacuum level is provided along with the final report. We can also supply high-vacuum pumping equipment when needed, for example for research institutes and laboratories.

Vacuum evacuation of insulation spaces ensures the safe storage of liquefied gases

Double-walled tanks and vacuum insulation

Liquefied gases are stored in double-walled tanks, with a vacuum created between the inner and outer shell. This vacuum acts as a highly effective thermal insulator, minimizing heat transfer from the outside into the inner tank. However, if the quality of the vacuum deteriorates, for example due to a leak or the gradual accumulation of gas molecules over time, insulation performance drops significantly.

Consequences of a deteriorating vacuum

At many sites, we've found that the vacuum level in tank insulation spaces has risen close to atmospheric pressure. This causes the liquefied gas to start evaporating within the tank, leading to increased pressure in the discharge piping. The excess gas often then has to be flared off, released into the atmosphere, which isn't a sustainable solution from either an environmental or an energy-efficiency standpoint. Releasing gases into the atmosphere accelerates the greenhouse effect and causes unnecessary fuel loss.

An effective solution: vacuum evacuation of insulation spaces

We have successfully carried out vacuum evacuation on the insulation spaces of numerous tanks, restoring them to the required level. As a result, the tanks' insulation performance is restored, evaporation is reduced, and gas use becomes controlled and energy-efficient. We use a specially designed vacuum station that lets us create and measure the low pressure values in insulation spaces accurately and reliably.

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