Self-pressurized liquid nitrogen tank use method

Infusion:

When filling the liquid from the inlet and outlet valve and filling the container, please open the vent valve first, connect the metal hose of the infusion to the inlet and outlet valve, open the inlet and outlet valve, and then add the liquid medium from the inlet and outlet valves. When finished, close the inlet and outlet valves.

Note: When filling the container, the vent valve must be opened first, and the filling speed should not be too fast!! Since the setting pressure of the safety valve configured from the self-pressurizing low-temperature container is 0.09 MPa, the self-pressurizing low-temperature container is filled with liquid. The working pressure of the tank is generally high. When filling the liquid, if the vent valve is not opened first, the inlet/discharge valve is directly opened, and the self-pressurizing container and the liquid-filled storage tank are directly connected, causing the safety valve to overpressure work. In the long-term operation, the service life of the safety valve is shortened. In severe cases, the safety valve cannot be returned to the seat, so that the self-pressurized container does not work properly. When the filling speed is too fast, the vaporized gas in the container is too late to be discharged, and the safety valve is overpressured. Therefore, when filling the container with liquid, the vent valve must be opened first, and the filling speed should not be too fast!!

Level indication:

1), liquid level scale: When measuring the liquid level height, unscrew the top liquid inlet screw plug, insert the liquid level scale into the container from the top and touch the bottom of the container. After 2-3 minutes, remove the ruler according to the scale on the scale. With the height of the frost, the height of the liquid level in the container can be roughly judged.

2) Float level gauge: A direct reading level gauge manufactured according to the principle of force balance. By observing the yellow indicator ring in the transparent display, the level change in the container can be directly indicated. See the instructions for details.

3) Capacitive digital display level gauge: Using the latest high-speed digital signal measurement technology, the height of the liquid level in the container can be detected quickly and continuously. See the instructions for details.

Storage:

When you use this container to store liquid media, close the inlet/drain valve and booster valve and the vent valve must be opened.

4 Transportation:

When you use this container to transport liquid media, the switch status of each valve should be the same as when it is stored; ensure that the container is upright and avoid tipping over; never allow the container to fall down and roll horizontally; use the strap to securely hold the container securely Do not use chains to secure the car, as the chain can damage the surface of the container and even damage the vacuum.


 

5 Infusion: If you want to output liquid from the container, please follow the procedure below:

(1), close the vent valve; (2) open the booster valve; (3) observe the pressure gauge; (4) when the pressure rises to 0.05 MPa (0.5 kg/cm2) (or when the required operating pressure is reached) ), open the liquid outlet valve for continuous infusion.

Infusion:

When filling the liquid from the inlet and outlet valve and filling the container, please open the vent valve first, connect the metal hose of the infusion to the inlet and outlet valve, open the inlet and outlet valve, and then add the liquid medium from the inlet and outlet valves. When finished, close the inlet and outlet valves.

Note: When filling the container, the vent valve must be opened first, and the filling speed should not be too fast!! Since the setting pressure of the safety valve configured from the self-pressurizing low-temperature container is 0.09 MPa, the self-pressurizing low-temperature container is filled with liquid. The working pressure of the tank is generally high. When filling the liquid, if the vent valve is not opened first, the inlet/discharge valve is directly opened, and the self-pressurizing container and the liquid-filled storage tank are directly connected, causing the safety valve to overpressure work. In the long-term operation, the service life of the safety valve is shortened. In severe cases, the safety valve cannot be returned to the seat, so that the self-pressurized container does not work properly. When the filling speed is too fast, the vaporized gas in the container is too late to be discharged, and the safety valve is overpressured. Therefore, when filling the container with liquid, the vent valve must be opened first, and the filling speed should not be too fast!!

Level indication:

1), liquid level scale: When measuring the liquid level height, unscrew the top liquid inlet screw plug, insert the liquid level scale into the container from the top and touch the bottom of the container. After 2-3 minutes, remove the ruler according to the scale on the scale. With the height of the frost, the height of the liquid level in the container can be roughly judged.

2) Float level gauge: A direct reading level gauge manufactured according to the principle of force balance. By observing the yellow indicator ring in the transparent display, the level change in the container can be directly indicated. See the instructions for details.

3) Capacitive digital display level gauge: Using the latest high-speed digital signal measurement technology, the height of the liquid level in the container can be detected quickly and continuously. See the instructions for details.

3 storage:

When you use this container to store liquid media, close the inlet/drain valve and booster valve and the vent valve must be opened.

4 Transportation:

When you use this container to transport liquid media, the switch status of each valve should be the same as when it is stored; ensure that the container is upright and avoid tipping over; never allow the container to fall down and roll horizontally; use the strap to securely hold the container securely Do not use chains to secure the car, as the chain can damage the surface of the container and even damage the vacuum.

5 Infusion: If you want to output liquid from the container, please follow the procedure below:

(1), close the vent valve; (2) open the booster valve; (3) observe the pressure gauge; (4) when the pressure rises to 0.05 MPa (0.5 kg/cm2) (or when the required operating pressure is reached) ), open the liquid outlet valve for continuous infusion.

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