addtime:2016-6-24 15:40:43
【special nitrogen machine for food industry】it is suitable for grain green storage, peng-chemical nitrogen packing, vegetable preservation, wine sealing (can) and storage.
【nitrogen property:】
1、because nitrogen has stable chemical properties, it can be anticorrosive. two is to prevent fragile foods (like chips) broken during delivery
2、nitrogen gas sterile, dust-free and odorless, meet the requirements of nitrogen in food storage and preservation industry.
【 一、the function of filling nitrogen in food:】
【1、antisepsis:】the metamorphism of food is mainly caused by oxidative reaction under the action of o2, which causes the microbial and bacterial reproduction to cause food corruption and deterioration. as a suffocation inert gas, n2 has asphyxiation and inhibitory effect on bacteria in food. the purpose of n2 was to eliminate o2, to slow the oxidation and respiration of food, and the solubility of n2 in water and oil was small, and the adsorption of food to n2 was also small. therefore, nitrogen is a better food preservative and fresh gas.
【2、protect the shape of food:】the nitrogen-filled packaging can also protect the shape of the contents of the food, preventing fragile foods from being crushed. avoid the pressure from internal and external pressure to make the food packed with the pressure bond, make the texture hard; even the irregular shape of food can maintain the beauty of the surface of the packing surface, reduce the damage caused by the folding of the surface and make the food spoil.
【3、beer, wine, juice production gas:】 after fermentation, using nitrogen gas purity over 98%, as the filter, transmission, sake of back pressure and canned production gas, nitrogen gas exhaust oxygen effectively avoids the harm of oxygen, improve the flavor stability of beer, wine, avoid to produce & other; aging taste & throughout; and & other; sediment & throughout; and so on.
【 二、the principle of the nitrogen filling machine:】
the variable pressure adsorption nitrogen generator (nitrogen generator and nitrogen generator) is used to compress the air as raw material, and the selective adsorption of oxygen and nitrogen by the high performance absorbent of carbon molecular sieve is used to directly take nitrogen.
the compressed air, which is purified and processed, under pressure adsorption, pressure adsorption and decompression. due to the dynamic effect, dynamic diameter smaller oxygen molecules in carbon molecular sieve pore diffusion rate is greater than nitrogen molecules, the adsorption before balance, nitrogen concentration in the gas phase, then get products of nitrogen. then, the carbon molecular sieve can be regenerated by reducing the pressure to normal pressure and removing impurities such as nitrogen.
psa nitrogen making machine (nitrogen, nitrogen generator), usually using two parallel adsorber, controlled by plc program controller of pneumatic valve opening and closing, alternating pressure adsorption and vacuum regeneration operation operation, continuous supply of raw materials, air continuous output nitrogen.
● it is easy to turn on, produce nitrogen fast, nitrogen is stable, and can produce gas continuously.
● microcomputer control, small footprint, low noise, automatic operation, mobile convenience, etc.
● the rated flow, the product gas purity automatic adjustment.
● nitrogen purity, on-line detection analysis of flow, unqualified sound and light alarm.
● safe operation, unattended, wired remote control.
【product gas technology index:】
【nitrogen gas flow:】3-10nm3/h(the normal temperature、101.325kpa)
【nitrogen gas purity:】≥99%~99.99%
【nitrogen gas dew point:】-38℃ ~-60℃
【the nitrogen gas outlet pressure:】≤ 0.2~0.6mpa(adjustable)
【special customized:】0.05~6.0mpa(customizable)
【the tri-yang series psa system is divided into nitrogen:97% 、98%、99%、99.5%、99.9%、99.95%、99.99%、99.99%、99.995% ,you can choose.】
【the main components of the nitrogen equipment:】air post-treatment purification system, air cushion tank, variable pressure adsorption host system and nitrogen buffer tank and control system.
【there are two basic conditions for nitrogen production:】1、the compressed air 2、the power supply
【air post-treatment purification system:】it is composed of freeze-drying machine, except water, oil removal, dust removal and fine filter, automatic drainer.
【freeze drying machine action:】freeze drying used to except the water cooling air, the purification of the compressed air pressure dew point 2-10 ℃, oil removal rate was 99.999%, and the dust particles & le; 0.01 u, make sure the absorbent work is not contaminated. provide adequate protection for carbon molecular sieve to ensure the life of carbon molecular sieve.
【air cushion action:】improve the continuity of the output flow and the stability of the pressure.
【the adsorption and adsorption system of nitrogen was adsorbed:】it consists of a, b adsorption tower, pneumatic valve, unqualified emptying and instrument control system.
the two adsorption towers are alternately adsorbed and regenerated to complete nitrogen and oxygen separation, and output nitrogen continuously.
【automatic control system:】the main is programmable plc controller, indicating instrument, purity analysis online display, unqualified alarm.
【nitrogen buffer tank:】composed of nitrogen buffer tank and output regulating valve. function: nitrogen injection into nitrogen buffer can be supplied by the system output by the host system to ensure the continuous supply of nitrogen and the output of the regulating valve. the pressure size can be adjusted by the pressure reducing valve.