| 摘要 |
PROBLEM TO BE SOLVED: To obtain a device which can raise the pressure in a tank, without heating remarkably the liquid in the tank. SOLUTION: This device to pressure a tank to hold the feeding part of a very low temperature liquid has a feature to have a tubular container 20 provided in the very low temperature liquid. The tubular container 20 has a feature to have an opening 23 at its bottom part 24, and it is communicated to the coil of a pressure accumulation device. The steam side of the coil of the pressure accumulation device is communicated to the head base of the tank. An electric heater element 30 is provided to the bottom part 24 of the tubular container 20. An insulating pipe 50 can be provided selectively around the tubular container 20. Furthermore, a ball 54 can be provided selectively at the position neighboring the opening 23 of the tubular container 20 in order to form a check valve. This device is installed to penetrate the top of an existing very low temperature tank. |
