PSA Nitrogen Machine

Specifications

1, Product Name: Nitrogen Generator

A full installation requires air compressor, refrigeration dryer, filters, air tank, nitrogen generator and gas buffer tank.

2, Principle:

When the process adopts lifting air, oxygen and nitrogen have different diffusion rate and adsorptive capacity to separate oxygen from nitrogen on carbon molecular sieve. When air is compressed to 0.8MPa, air source enters in pressure-swing adsorption tower for separation after being purified through dry and oil-water separation process (filter). Oxygen molecules are diffused and adsorbedin carbon molecular sieve under pressure. Non-adsorbed nitrogen is discharged from outlet of adsorption tower. Oxygen is desorbed, discharged and purged in adsorption tower under depressurization. Moreover, adsorbent can be recycled.

3, Application:

Food packing, Food storing, Electric & Electronic industry, Petro-gas & Oil field, Chemicals & Petro-chemicals, Coal-mine, Metallurgy, Pharmacy, SMT, Fire-resistance, lab, Air driving, and so on...
1. Metallurgy: For anneal protection, agglomeration protection, nitrogenizing, furnace washing and blowing ,etc. Used in fields such as metal heating treatment, powder metallurgy, magnetic material,copper process, metallic mesh, galvanized wire, semiconductor, etc.

2. Chemical and new material industries: For chemical material gas, pipeline blowing, gas replacement, gas protection, product transport, etc. Used in fields such as chemical ,urethane elastic fiber, rubber, plastic, tyre, polyurethane, biological technology, intermediate, etc.

3. Electronic industry: For encapsulation, agglomeration, anneal, deoxidization, storage of electronic products. Used in fields such as peak welding, circumfluence welding, crystal, piezoelectricity, electronic porcelain, electronic copper tape, battery, electronic alloy material, etc.

4, Nitrogen Used in Food Industry

As a kind of fundamental environmental substances, nitrogen is a colorless and tasteless gas with inactive chemical property, which occupies 79% in earth’s atmosphere. When gaseous nitrogen is used for preserving foods, there is no any chemical residue. It is a good and practical way to cover food for preservation by using nitrogen, which can preserve foods to next century from 1990s.

(1) Food package: Traditional vacuum package is rapidly replaced by nitrogen-filling package, which is applied in package of fired food, puffed food, bakery food, and fresh slices of various farm products, special cheese and fresh meet. Because nitrogen-filling package can more effectively maintain taste and nutrition of foods, it is expected to further develop its application.

Because oxidation action is generated by involving in O2, It causes microbe and bacterial reproduction and leads to food spoilage and deterioration. As a kind of suffocating inert gas, N2 can suffocate and inhibit bacterial reproduction. The aim of using N2 is to purge O2, relieve oxidization and respiration of foods. Moreover, N2 has low solubility in water and grease. And foods have small adsorption effect on N2. Therefore, N2 can be used as a good gas for preserving foods and keeping foods fresh.

In addition, nitrogen-filling package can effectively protect the shape of food in package; prevent crumbly food from being crushed; avoid packed food adhesion together under pressure due to unbalance between interior and exterior pressures; avoid food packed food stiffening. Although food has irregular shape, beautiful shape of package can be maintained in order to avoid food deterioration caused by damaged package due to surface folding.

Edible oils and non-carbonated beverage may also benefit from nitrogen. In some bottles or containers, there are ”Head Spaces ”between liquid and lids where air is replaced by nitrogen, thus the life of liquid can be prolonged up to 500%.

(2) Beverage Mixture:Oxygen dissolved in liquid and oil can cause precipitation. Oxygen existing in beverage can make the taste become bad and shorten its life. Gaseous nitrogen is conveyed in liquid during processing by applying a kind of method known as “mixture” (liquid is mixed by compressed air through sprayer). These nitrogen bubbles can remove oxygen in order to prevent non-carbonate beverages (fruit juice, tea and milk) and edible oils (peanut, olive, sunflower and rape oils) from being oxidized, deteriorated and faded.

(3) Nitrogen Expansion: For other foods, it is required to add gas for increase food volume. Nitrogen is used to puff edible oils, mayonnaise, margarine in barrel or peanut oil products for increasing their volumes and expansibility, so as to prolong their life.

When fruits and vegetables are kept in their optimum refrigerated storage temperature, their respiratory rates will decrease, and when applying nitrogen to make the oxygen level in storage equipments decrease to 2-5%, the respiratory rates of fruits can be further decreased. If fruits are kept in an optimum temperature, they can be preserved for 2-3 months; however, if nitrogen is applied to decrease oxygen content in storage containers, the same fruits can be preserved for more than one year. Most easily-rotten fruits, especially like apples, bananas, pears, berries and kiwis, may be prolonged their freshness by balancing nitrogen, oxygen and CO2 in refrigerated containers.

5, Main Technical Parameters of ZR-3/30Nm³/h Nitrogen Generator

You can be sure of the quality of your ZHONGRUI solution. ZHONGRUI uses only the best suppliers and components. And all generators are tested before they leave the factory. Our ISO-9001 certification is your guarantee of that!

6, Which nitrogen generator model should I choose?

Different parameters are essential for your choice of generator.
• How big is your consumption?
• Is your consumption variable?
• Which pressure is required?
• What purity is required?
• Do you already have a compressed air system?

This is our standard range of nitrogen generators. If you have other requirements we will be happy to produce a generator that matches your needs. Contact us for more details.