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Nitrogen storage methods

Nitrogen storage methods

2018-11-05

Common liquid nitrogen storage devices are nitrogen tanks, which are divided into low-pressure and high-pressure types. Low-pressure tanks have a pressure of less than 100 psi, while high-pressure tanks have a pressure of more than 100 psi. Their volumes are generally 2000 and 2500 gallons. Their structure is divided into two layers: the inner layer is made of stainless steel, and the outer layer is made of forged steel. The inner layer is covered with insulation material, and the space between the inner and outer layers is evacuated to prevent heat exchange. The tank is equipped with a pressure regulator, a liquid level gauge, a safety valve, a pressure relief valve, etc.

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What are the advantages of a nitrogen generator?

Nitrogen generators have a wide range of applications and are easy to operate. Below are some of the advantages of nitrogen generators: 1. Nitrogen generators produce nitrogen with stable purity, which is fully monitored and displayed by the instrument to ensure the required nitrogen purity.

2018-11-05

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What advanced technologies are used in Pressure Swing Adsorption (PSA) nitrogen generators?

A carbon molecular sieve pressure swing adsorption (PSA) nitrogen generation unit is a new type of air separation equipment that uses compressed air as a raw material and carbon molecular sieve as an adsorbent, employing a pressure swing adsorption process (PSA). At normal temperature and low pressure, it utilizes the difference in diffusion rates of oxygen and nitrogen in the carbon molecular sieve to separate oxygen and nitrogen. The purity and output of nitrogen can be adjusted according to customer needs.

2018-11-05

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Why import lead-free welding for SMT?

1. Why import lead-free welding? Lead is a toxic heavy metal. Excessive lead absorption can cause poisoning, while low levels of lead may affect human intelligence, nervous system, and reproductive system.

2018-11-05

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Differences between nitrogen produced by a nitrogen generator and bottled nitrogen

There are two main sources of nitrogen: liquid nitrogen cylinders and nitrogen generators (directly extracting nitrogen from the air). Liquid nitrogen cylinders (one ton of liquid nitrogen is equivalent to 780m3 of effective nitrogen gas at normal temperature and pressure): Gaseous nitrogen is produced using large-scale nitrogen generation equipment, and then it is converted into liquid nitrogen through ultra-high pressure and ultra-low temperature treatment (typically: 500Mpa, -180℃). What we use {that is, inputting nitrogen into the furnace} is gaseous nitrogen, so before using liquid nitrogen, a gasification process is required: decompression and heating. The several curved pipes connected to the liquid nitrogen storage tank are covered with ice, and white mist continuously emerges, indicating that liquid nitrogen absorbs the temperature around the pipes during the gasification process. However, if it is in the north or a colder area, in winter, other facilities are required to assist with liquid nitrogen gasification. In addition, the liquid nitrogen in the storage tank needs to be replenished frequently, which also brings trouble and pressure to procurement and transportation. At the same time, the overall investment in long-term and large-scale use of liquid nitrogen is considerable.

2018-11-05

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Seven Key Features of Pressure Swing Adsorption (PSA) Nitrogen Generation Equipment

The simplest application unit of a pressure swing adsorption (PSA) nitrogen generator consists of two adsorption towers filled with carbon molecular sieves, inlet and outlet pipelines, a PLC, programmable valves, and analytical and field instruments. When compressed air enters from the inlet, flowing through the adsorbent (carbon molecular sieve) in the adsorption tower, the oxygen molecules in the compressed air are adsorbed, while the unadsorbed nitrogen molecules are enriched and flow out from the outlet. When the carbon molecular sieve is saturated, the inlet and outlet valves are closed, and the vent valve is opened to desorb the adsorbent. After the regeneration gas is completely regenerated, it is used for the next adsorption cycle.

2018-11-05

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