中文
EnglishPSA Nitrogen generator
Advanced technology and unique air distributor make the air distribution
more uniform. Carbon molecular sieve can be used efficiently to provide
qualified nitrogen in about 20 minutes.
Nitrogen making machine for metallurgy and aluminum products industry
Introduction to process flow architecture1. Air compressor: the air is collected and compressed by the air compressor to provide air source for the oxygen generator. Reference indicato: voltage and power.2. Four stage filter: air purification. It can filter particles， water， oil and dust in compressed air. The filtration accuracy reaches 0.01ppm.3. Freeze dryer: generally， the compressed air entering the air netwo ...XITE 1688 store：
Introduction to process flow architecture
1. Air compressor: the air is collected and compressed by the air compressor to provide air source for the oxygen generator. Reference indicators: voltage and power.
2. Four stage filter: air purification. It can filter particles， water， oil and dust in compressed air. The filtration accuracy reaches 0.01ppm.
3. Freeze dryer: generally， the compressed air entering the air network contains 100% water vapor. When the air is cooled， the steam will condense， so it will not only damage the compressed air system， but also damage the final product. The air is dried by the freeze dryer， which can ensure the healthy operation of the equipment system.
(when the air dew point is ≤ 45 ℃， an adsorption dryer shall be selected for secondary treatment of low dew point air source)
4. Air storage tank: after the air is processed by certain pressure equipment， it needs to stabilize and buffer the pressure before entering the next component. Two primary and secondary air tanks.
5. Oxygen generator: PSA pressure swing adsorption process is adopted to realize the separation of oxygen and nitrogen through the alternation of molecular sieve adsorption and desorption.
6. Oxygen storage tank: qualified oxygen from oxygen generator is delivered to oxygen storage tank through pipeline. The oxygen tank is equipped with a safety valve. When the pressure reaches a certain value， the safety valve will automatically release the pressure， so that the whole system is in a safe working environment.
Nitrogen is widely used in all walks of life. In the aluminum products industry， a large amount of nitrogen is required because the process of melting aluminum requires nitrogen to purge the dirty things on the surface of liquid aluminum and blow refining agent to stir the aluminum industry， so as to prevent oxygen， moisture and hydrogen from causing bubbles and hydrogen catalysis in finished aluminum products， Generally， the purity of nitrogen is about 99.99-99.999%. Because the gas is used instantaneously during purging， the gas flow shall be large instantaneously. (smelting furnace nitrogen purging nitrogen generator， smelting furnace nitrogen generator， molten aluminum smelting nitrogen generator)
Process flow diagram of pressure swing adsorption nitrogen production unit
Characteristics of nitrogen production technology
1. The raw air is taken from nature， and nitrogen can be produced by providing compressed air and power supply. The equipment has low energy consumption and low operation cost.
2. It is convenient to adjust the nitrogen purity. The nitrogen purity is only affected by the nitrogen exhaust volume. The purity of ordinary nitrogen production can be adjusted arbitrarily between 90% - 99.999%; The high purity nitrogen generator can be adjusted arbitrarily between 99% - 99.999%.
3. The equipment has high degree of automation， fast gas production and can be unattended. Just press the button for startup and shutdown， and nitrogen can be generated within 20-40 minutes after startup.
4. The equipment has the advantages of simple process flow， compact structure， small floor area and strong adaptability.
5. The molecular sieve is filled by the blizzard method to avoid the pulverization of the molecular sieve caused by the impact of high-pressure air flow and ensure the long-term use of the molecular sieve.
6. Digital display flowmeter is equipped with pressure compensation and high-precision secondary instrument for industrial process monitoring， which has the functions of instantaneous flow and cumulative calculation.
7. Online analyzer concentration detection， high precision， maintenance free.
8. Unqualified pneumatic automatic venting， without manual， to ensure work efficiency.
9. Unqualified purity alarm can be designed，
10. The communication interface (RS485) of PLC shall be reserved to communicate with the buyer's upper computer.
Technical index parameters:
Flow: 3 ~ 2000nm3 / HR
Purity: ≥ 95-99.999%
Pressure: 0.01-0.8mpa (adjustable within)
Dew point: - 45 ℃
Oxygen content: ≤ 5ppm
Filtration accuracy: 0.001ppm
Model | Flow（m3/hr） | Purity(%) | High purity（%） | Pressure(Mpa) | Power source | workmanship | The dew point（℃） | Low dew point（℃） | Finished products |
XTFD-10 | 10 | ≥95 | 99.9995 | ≤0.8 | Natural air | PSA Pressure swing adsorption | -45 | -70 | Nitrogen |
XTFD-20 | 20 | ≥95 | 99.9995 | ≤0.8 | -45 | -70 | Nitrogen | ||
XTFD-30 | 30 | ≥95 | 99.9995 | ≤0.8 | -45 | -70 | Nitrogen | ||
XTFD-50 | 50 | ≥95 | 99.9995 | ≤0.8 | -45 | -70 | Nitrogen | ||
XTFD-100 | 100 | ≥95 | 99.9995 | ≤0.8 | -45 | -70 | Nitrogen | ||
XTFD-200 | 200 | ≥95 | 99.9995 | ≤0.8 | -45 | -70 | Nitrogen | ||
XTFD-300 | 300 | ≥95 | 99.9995 | ≤0.8 | -45 | -70 | Nitrogen | ||
XTFD-500 | 500 | ≥95 | 99.9995 | ≤0.8 | -45 | -70 | Nitrogen | ||
XTFD-1000 | 1000 | ≥95 | 99.9995 | ≤0.8 | -45 | -70 | Nitrogen | ||
XTFD-1500 | 1500 | ≥95 | 99.9995 | ≤0.8 | -45 | -70 | Nitrogen | ||
XTFD-2000 | 2000 | ≥95 | 99.9995 | ≤0.8 | -45 | -70 | Nitrogen |
Industry application scope
1. Application of semiconductor packaging industry
Encapsulation， sintering， annealing， reduction and storage with nitrogen. Hongbo PSA nitrogen generator has helped major manufacturers in the industry win the first opportunity in the competition and realized effective value promotion.
2. Application in chemical industry and new material industry
Nitrogen is used to create oxygen free atmosphere in chemical process， improve the safety of production process， fluid transmission power source， etc. Petroleum: it can be used for nitrogen purging of pipelines and containers in the system， nitrogen filling， replacement and leak detection of storage tanks， combustible gas protection， and diesel hydrogenation and catalytic reforming.
3. Application of semiconductor silicon industry
Atmosphere protection， cleaning and chemical recovery in semiconductor and integrated circuit manufacturing process.
4. Application of electronic components industry
Selective welding， purging and encapsulation with nitrogen. Scientific nitrogen inert protection has been proved to be an essential and important link in the successful production of high-quality electronic components.
5. SMT industry application
Nitrogen filled reflow soldering and wave soldering， using nitrogen can effectively inhibit the oxidation of solder， improve the welding wettability， accelerate the wetting speed， reduce the generation of solder balls， avoid bridging and reduce welding defects. Several SMT electronic manufacturers have equipped hundreds of sets of pressure swing adsorption nitrogen making machines with high cost performance. They have a huge customer base in the SMT industry， and the share of SMT industry is more than 90%.
6. Application in food and pharmaceutical industry
It is mainly used in food packaging， food preservation， food storage， food drying and sterilization， medical packaging， medical ventilation， medical transportation atmosphere， etc.
7. Microbial industry
The growth of microorganisms in anaerobic environment can be organically combined to produce protein， nucleic acid and nitrogen-containing metabolites.
8. Powder metallurgy， metal processing industry
The heat treatment industry applies annealing and carbonization of steel， iron， copper and aluminum products， high-temperature furnace protection， low-temperature assembly of metal parts and plasma cutting.
9. Expand the use of other areas
In addition to the above industries， nitrogen generators are also widely used in coal mines， injection molding， brazing， tire nitrogen filled rubber， rubber vulcanization and many other fields. With the progress of science and technology and the development of society， the application field of nitrogen devices is becoming more and more extensive. Field gas (nitrogen generator) has gradually replaced the traditional nitrogen supply methods such as liquid nitrogen evaporation and bottled nitrogen because of its advantages of low investment， low cost and convenient use.
About motion energy consumption
1. Action and energy saving effect of nitrogen generator
The adsorption tower of the nitrogen generator is switched once a minute， and the pressure rise time of each switching is only 1 ~ 2 seconds， that is， the instantaneous gas consumption is very large. Without the buffer effect of the air storage tank， the compressed air directly enters the system and can not process a lot of compressed air in an instant. In this way， a lot of compressed air containing water and oil directly enters the nitrogen generator， which must poison the molecular sieve， Shorten the service life of molecular sieve， reduce the gas production rate and add the user's application cost.
2. Provide stable air source
If there is an air storage tank in the nitrogen generator system， the output air of the main engine has a buffer， the air source can be better maintained at a set value， and the gas consumption system can obtain a stable pressure， which is very necessary for the application of modern chemical plants.
3. Good air quality
The compressed air from the nitrogen generator is mainly sent to the air storage tank. The air here will stay for a certain time， which can accumulate impurities， water and other foreign matters in the air， and the temperature of the compressed air is also reduced. Even without a freeze dryer， it can send out relatively high-quality air.
4. In fact， the role of savings is the same as a reservoir. The air compressor is a gas source， while the air tank is a reservoir. The air storage tank can set the air pressure balance within a certain pressure scale according to the setting， buffer the instability of the air pressure and reduce the launching times of the main engine. Other air storage tanks can also play the role of accumulating impurities， water and other foreign matters in the air.
About safe use
1. Do not put it in the sun， rain， wind or places with relative humidity greater than 85%. Do not place in dusty， corrosive or combustible gas environment. Do not place it in a place where there is a risk of vibration and condensate freezing. Do not be too close to the wall to prevent poor ventilation. It is not necessary to use it in the environment with corrosive gas. The dryer with copper pipe antirust treatment or the dryer with stainless steel heat exchanger shall be selected. It should be used under the ambient temperature of 40 ℃.
2. Do not connect the compressed air inlet incorrectly. In order to facilitate the repair， a bypass pipeline shall be set to ensure the repair space. Prevent the vibration of the air compressor from being transmitted to the dryer. The weight of piping shall not be directly added to the dryer.
3. Don't stand the drain up， discount or flatten it.
4. The power supply voltage should not be less than 10%. Leakage circuit breaker with appropriate capacity shall be set. It is necessary to be grounded before use.
5. When the inlet temperature of compressed air is too high， the ambient temperature is too high (above 40 ℃)， the application flow exceeds the rated air handling capacity， the voltage is not firm by more than 10%， and the ventilation is too poor (ventilation is also required in winter， otherwise the room temperature will rise)， the protection circuit will play a role， the indicator light will be off and the operation will be interrupted.
6. When the air pressure is higher than 0.15Mpa， the drain port of the normally open automatic drain can be closed. The drainage capacity of the cold dryer is too small， the drainage outlet is open， and air is blown out.
7. The compressed air is of poor quality. If mixed with dust and oil， these dirt will adhere to the heat exchanger， reduce its operation efficiency， and the drainage is also easy to fail. It is expected to set a filter at the inlet of the dryer， and it shall be recognized that the drainage shall not be less than once a day.
8. The vent of the dryer should be cleaned with a vacuum cleaner once a month.
9. Turn on the power supply， and then turn on the compressed air after the operation is stable. After intermittent operation， it is necessary to wait for more than 3min before starting.
10. If automatic drainer is used， its drainage function shall be checked frequently. Always clean the dust on the condenser. Often check the pressure of the refrigerant to judge whether the refrigerant leaks and whether the capacity of the refrigerator has changed. Check whether the temperature of the condensate is normal.
Service reminder
1. Maintenance time of air compressor: 500 hours for the first maintenance， and every 3000 hours for future work.
2. Maintenance content of air compressor: replace the oil of air compressor and replace the internal accessories: oil filter， air filter and oil core.
3. Maintenance of air purification end: the filter element needs to be replaced for four-stage air filtration， depending on the surrounding environment. Generally， the replacement of filter element is about 6000 hours.
4. Freeze dryer: generally not required. Add refrigerant when necessary.
5. Maintenance of adsorption dryer: replace the raw material activated alumina or molecular sieve， depending on the use frequency. Generally， the replacement time is 1 to 2 years.
6. Booster equipment maintenance: regularly replace the piston ring， add grease， etc.
7. If you need more information， please contact our staff!
8. Thank you for reading and wish you a happy life!
