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 generator for cultural relics protection
Introduction to process flowThe ambient air is compressed and purified to remove oil， water and dust， and then ente the pressure swing adsorption device composed of two adsorption towe filled with carbon molecular sieve. Compressed air flows through the adsorption tower from bottom to top， during which oxygen molecules are adsorbed on the surface of carbon molecular sieve. Nitrogen flows out from the upper end of ...XITE 1688 store：
Introduction to process flow
The ambient air is compressed and purified to remove oil， water and dust， and then enters the pressure swing adsorption device composed of two adsorption towers filled with carbon molecular sieve. Compressed air flows through the adsorption tower from bottom to top， during which oxygen molecules are adsorbed on the surface of carbon molecular sieve. Nitrogen flows out from the upper end of the adsorption tower and enters the crude nitrogen buffer tank. After a period of time， the adsorbed oxygen of carbon molecular sieve in the adsorption tower is saturated and needs to be regenerated. Regeneration is achieved by stopping the adsorption step and reducing the pressure of the adsorption tower. The two adsorption towers carry out adsorption and regeneration alternately， so as to ensure the continuous output of nitrogen.
Process flow diagram of pressure swing adsorption nitrogen production unit
技术特点
1、原料空气取自自然，只需提供压缩空气和电源即可制取氮气。设备能耗低，运行成本费用少。
2、氮气纯度调整方便，氮气纯度只受氮气排气量的影响，普通制氮纯度在90%－99.999%之间任意调节；高纯度制氮机可在99%－99.999%之间任意调节。
3、设备自动化程度高，产气快，可无人值守。启动、关机只需按一下按钮，开机20-40分钟内即可产生氮气。
4、设备工艺流程简单，设备结构外形紧凑，占地面积小，设备装置适应性强。
5、暴风雪法装填分子筛，避免高压气流冲击导致分子筛粉化现象，确保分子筛长时间使用。
6、数显流量计带压力补偿、高精度的工业过程监控二次仪表，具有瞬时流量及累积计算的功能。
7、在线分析仪浓度检测，高精度，免维护。
8、不合格气动自动放空，无需人为，保证工作效率。
9、可设计不合格纯度报警，
10、预留PLC的通讯接口（RS485），与买方上位机通讯。
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. 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%.
2. Application of semiconductor silicon industry
Atmosphere protection， cleaning and chemical recovery in semiconductor and integrated circuit manufacturing process.
3. 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.
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. 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.
6. 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.
7. 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.
8. Other areas of use
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!
