Vaporizer selection next to the liquid nitrogen tank
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I would like to ask the experts: are there any standard requirements regarding the design of the vaporizer placed next to the liquid nitrogen tank? How should I choose a vaporizer? And what should be done if the vaporization is incomplete and liquid nitrogen leaks out? ? Thank you!
If you are a user, consult the manufacturer directly. This is a very mature technology that is commonly found in the market. You just need to specify your vaporization volume and pressure. If extremely high pressures are required, a cryogenic liquid pump and related equipment will also be necessary; these are all part of a series of devices that can be purchased from the same supplier, who will also handle the design aspect, ensuring that all the equipment is compatible with each other.
I’m not a user; I’m just checking whether a company’s carburetor fails to vaporize properly, which leads to brittle cracks in the carbon steel gas storage tank that follows!
Those who are wondering under what circumstances vaporization in the carburetor can occur incompletely, allowing liquid nitrogen to enter the gas storage tank and cause cracks in it – please give some advice! Thank you!
Could it be that the pressure in the liquid nitrogen storage tank is too high, resulting in a fast flow rate that causes liquid nitrogen that has not yet vaporized to enter the carbon steel tank?
Most of these accidents occur due to excessive gas supply when the pressure in the user’s system is low; an automatic pressure regulation system is needed, as flow rate regulation or pressure regulation can prevent such problems from occurring. This is definitely not a design issue.
To give a common example from everyday life, the automatic pressure regulator you mentioned is it similar to the vaporization valve on gas cylinders?
No, what is standard should be an electric (or pneumatic) control valve, which needs to be selected based on the pipe diameter, pressure, and flow rate. By connecting the flow signal to the controller, online control can be implemented; once the flow rate becomes too high, the valve is closed, and when it’s too low, the valve is opened. In short, by setting a certain pressure, it can automatically track and adjust.
Thank you, I understand. I was confused by your term “automatic adjustment”
There is a pressure regulator before it enters the gas storage tank!
It would be best to clarify your process first before discussing this. Your issue seems to be related to low-temperature liquids failing to vaporize, which causes the pipes in the equipment downstream of the vaporizer to freeze and get damaged. It revolves around the discussions I participated in. Otherwise I didn’t understand. I'm sorry.