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Small nitrogen generator

The fully automatic compact liquid nitrogen supply station produces nitrogen from the air, which is liquefied into liquid nitrogen by a nitrogen liquefier and stored in a liquid nitrogen storage tank. With a compact structure, it can continuously and conveniently supply liquid nitrogen, and can be used as a source of supply for small amounts of liquid nitrogen in the area. The nitrogen liquefier uses a mixed refrigerant throttling refrigeration machine or a tetrathlon refrigeration machine as the cooling source. Our company's series of nitrogen liquefier products can provide customers with more choices, establish small nitrogen liquefaction stations for major laboratories, and timely solve the needs of liquid nitrogen use.

PSA pressure swing adsorption nitrogen generator

Under a certain pressure, there is a significant difference in the diffusion rates of nitrogen and oxygen in the air on carbon molecular sieves. In a short period of time, oxygen molecules are heavily adsorbed by carbon molecular sieves, and nitrogen molecules are enriched in the gas phase, achieving oxygen nitrogen separation. Due to the significant difference in oxygen adsorption capacity of carbon molecular sieves with different pressures, reducing the pressure can desorb the oxygen molecules adsorbed by carbon molecular sieves, allowing them to regenerate and be reused repeatedly. Adopting two adsorption tower processes, one tower produces nitrogen through adsorption and the other tower undergoes desorption and regeneration, with alternating cycles to continuously produce high-quality nitrogen.

ZYN-C Carbon and Nitrogen Purification Equipment

Working principle: At a certain temperature, the residual nitrogen in low-purity nitrogen undergoes a nitridation reaction with the carbon provided by the carbon supported catalyst: C02 generated by C+02=C02 is removed and deeply dehydrated by pressure swing adsorption process to obtain high-purity nitrogen.

ZLN Small Liquid Nitrogen Equipment

The fully automatic compact liquid nitrogen supply station produces nitrogen from the air, which is liquefied into liquid nitrogen by a nitrogen liquefier and stored in a liquid nitrogen storage tank. With a compact structure, it can continuously and conveniently supply liquid nitrogen, and can be used as a source of supply for small amounts of liquid nitrogen in the area. The nitrogen liquefier uses a mixed refrigerant throttling refrigeration machine or a tetrathlon refrigeration machine as the cooling source. Our company's series of nitrogen liquefier products can provide customers with more choices, establish small nitrogen liquefaction stations for major laboratories, and timely solve the needs of liquid nitrogen use.

ZYN-H hydrogenation nitrogen purification equipment

Using a purification process that combines two efficient catalysts, hydrogenation and deoxygenation are carried out at room temperature, followed by the removal of excess hydrogen (when hydrogen content is required). Through the purification process of deep water and impurities, high-purity nitrogen gas is obtained.

ZYO pressure swing adsorption oxygen generator

Compressed air enters an adsorption tower equipped with zeolite molecular sieves after removing impurities such as oil, water, and dust through the air purification system. Nitrogen, carbon dioxide, and water vapor in the air are heavily adsorbed by the molecular sieves, while oxygen passes through the adsorbent due to its high diffusion rate, achieving nitrogen and oxygen separation. When the nitrogen and other impurities adsorbed in the adsorption tower reach saturation, the pressure is reduced to allow the zeolite molecules to desorb and regenerate, allowing for repeated recycling. Two adsorption towers are used to circulate under the control of PLC, continuously producing high-quality oxygen.

VPSA vacuum pressure swing adsorption oxygen production equipment

The VPSA oxygen production system mainly consists of a blower, vacuum pump, switching valve, adsorber, and oxygen balance tank. After removing dust particles through the suction filter, the raw air is pressurized to 0.3-0.5 barg by the Roots blower and enters one of the adsorbers. The adsorber is filled with adsorbent, in which water, carbon dioxide, and a small amount of other gas components are adsorbed by the activated alumina loaded at the bottom at the inlet of the adsorber, and then nitrogen is adsorbed by the zeolite molecular sieve loaded at the top of the activated alumina. Oxygen (including argon) is a non adsorbed component that is discharged from the top outlet of the adsorber as product gas to the oxygen balance tank. When the adsorber adsorbs to a certain extent, the adsorbent in it will reach a saturated state. At this time, a vacuum pump is used to vacuum it through a switching valve (opposite to the adsorption direction), with a vacuum degree of 0.65-0.75barg. The adsorbed water, carbon dioxide, nitrogen, and a small amount of other gas components are extracted and discharged into the atmosphere, and the adsorbent is regenerated.

KDN type high-purity nitrogen air separation equipment

Deep cooling nitrogen production can not only produce nitrogen but also liquid nitrogen. Satisfying the process requirements for liquid nitrogen, it can also be stored in a liquid nitrogen storage tank. When there is an intermittent load of nitrogen or a minor repair of the air separation equipment, the liquid nitrogen in the storage tank enters the vaporizer and is heated before being sent to the product nitrogen pipeline to meet the nitrogen demand of the process unit. The operating cycle of cryogenic nitrogen production (referring to the interval between two large heating cycles) is generally more than 1 year, therefore, cryogenic nitrogen production generally does not consider backup. Cryogenic nitrogen production can produce nitrogen with a purity of ≥ 99.999%. The purity of nitrogen is limited by the nitrogen load, number of trays, tray efficiency, and oxygen purity in the liquid air, with a small adjustment range. Therefore, for a set of cryogenic nitrogen production equipment, the product purity is basically certain, which is inconvenient to adjust. When the adsorber is absorbed to a certain extent, the adsorbent in it will reach a saturated state. At this time, a vacuum pump is used to vacuum the adsorber through the switching valve (opposite to the adsorption direction), and the vacuum degree is 0.65-0.75barg. The absorbed water, carbon dioxide, nitrogen and a small amount of other gas components are pumped out to the atmosphere and the adsorbent is regenerated.

ZHL micro-thermal regenerative compressed air dryer

Micro-thermal regenerative air dryer is a product developed by absorbing the advantages of thermal regeneration and non-thermal regeneration. The regenerated gas can regenerate the desiccant after raising the temperature, which can not only improve the regeneration effect, but also reduce the regeneration gas consumption.

ZWL non-heat regenerative compressed air dryer

Non-heat regenerative compressed air dryer is a kind of equipment which uses microporous desiccant to absorb water molecules to dry compressed air according to pressure swing adsorption principle.

ZYL compression heat regeneration compressed air dryer

Non-heat regenerative compressed air dryer is a kind of equipment which uses microporous desiccant to absorb water molecules to dry compressed air according to pressure swing adsorption principle.

Cryogenic air separation equipment

Air separation equipment is a large and complex system, mainly composed of the following subsystems: power system, purification system, refrigeration system, heat exchange system, distillation system, product delivery system, liquid storage system and control system.

ZCH combined low dew point compressed air dryer

68/5000 Combined low dew point dryer is a kind of low dew point drying equipment which is composed of freezing dryer and adsorption dryer. Adopt the new technology and new process, low consumption, energy saving, intelligent operation, can meet the different needs of users.

Compressed air decarbonization equipment

Compressed air decarbonization equipment

Freezing dryer

According to the principle of freezing dehumidification, the wet and hot compressed air is heat exchanged through the evaporator, so that the gaseous moisture of the compressed air is condensed into liquid water, which is discharged out of the machine through the gas-water separator.