Nitrogen generator for sale is a machine that will automatically generate nitrogen gas that extends shelf life of your coffee products and help preserve the freshness and flavour of your coffee, such as drip coffee bag, cold brew coffee, instant coffee bag, pyramid tea bag, ect.Pleasecontacttoknowhow much does a nitrogen generator cost and price. 1. Power: 220V, Single phase, 1.5KW, 50HZ
2. Application for coffee product: 2.1 Food preservation by filling nitrogen in food industry. 2.2 Aligation of beverages and food puffling. 2.3 Small-scale nitirogen demand in chemical industry. 2.4 Blow and replacement of laboratory apparatus. 2.5 Nitrogen proection and filling of injection solution, transfusion solution and oral liquid in Pharmaceutical industy.
Nitrogen generators used in industry can be divided into three types according to different classification methods, namely, cryogenic air separation method, molecular sieve air separation method (PSA) and membrane air separation method.
The nitrogen generator is a nitrogen production equipment designed and manufactured according to the pressure swing adsorption technology. The nitrogen generator uses high-quality imported carbon molecular sieve (CMS) as the adsorbent, and adopts the principle of pressure swing adsorption (PSA) at room temperature to separate air to produce high-purity nitrogen. Usually, two adsorption towers are connected in parallel, and the imported PLC controls the automatic operation of the imported pneumatic valve to alternately perform pressurized adsorption and decompression regeneration to complete the separation of nitrogen and oxygen to obtain the required high-purity nitrogen.
3. Working principle:
3.1 Principle of PSA pressure swing adsorption nitrogen production
Carbon molecular sieve can adsorb oxygen and nitrogen in the air at the same time, and its adsorption capacity increases with the increase of pressure, and there is no obvious difference in the equilibrium adsorption capacity of oxygen and nitrogen under the same pressure. Therefore, it is difficult to achieve effective separation of oxygen and nitrogen only by changing the pressure. If the adsorption rate is further considered, the adsorption characteristics of oxygen and nitrogen can be effectively distinguished. Oxygen molecules are smaller in diameter than nitrogen molecules, so the diffusion rate is hundreds of times faster than nitrogen, so carbon molecular sieves also absorb oxygen very quickly, and the adsorption can reach more than 90% in about 1 minute; while the adsorption amount of nitrogen is only 5% at this time So at this time, the adsorption is mostly oxygen, and the rest is mostly nitrogen. In this way, if the adsorption time is controlled within 1 minute, oxygen and nitrogen can be initially separated, that is to say, adsorption and desorption are achieved by pressure difference, adsorption when the pressure rises, and desorption when the pressure drops. The difference between oxygen and nitrogen is based on the difference in the adsorption speed of the two, which is realized by controlling the adsorption time. If the time is controlled to be very short, the oxygen has been fully adsorbed, and the adsorption process is stopped before the nitrogen can be adsorbed in the future. Therefore, pressure swing adsorption nitrogen production must have a pressure change, and the time must be controlled within 1 minute.
3.2 Principle of Cryogenic Air Separation Nitrogen Production Cryogenic nitrogen production can not only produce nitrogen but also liquid nitrogen, which meets the process requirements of liquid nitrogen, and can be stored in liquid nitrogen storage tanks. When there is intermittent nitrogen load or minor repair of air separation equipment, the liquid nitrogen in the storage tank After entering the vaporizer and being heated, it is sent into 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 major heatings) is generally more than 1 year. Therefore, cryogenic nitrogen production generally does not consider backup. However, pressure swing adsorption nitrogen production can only produce nitrogen gas, there is no backup means, and a single set of equipment cannot guarantee continuous long-term operation.
3.3 Principle of membrane air separation nitrogen production The air enters the polymer membrane filter after being compressed and filtered by the compressor. Due to the different solubility and diffusion coefficient of various gases in the membrane, the relative permeation rate of different gases in the membrane is different. According to this characteristic, various gases can be divided into "fast gas" and "slow gas".
When the mixed gas is under the action of the pressure difference on both sides of the membrane, the gas with a relatively fast permeation rate, such as water, hydrogen, helium, hydrogen sulfide, carbon dioxide, etc., will be enriched on the permeation side of the membrane after passing through the membrane, while the permeation rate is relatively high. Slower gases, such as methane, nitrogen, carbon monoxide and argon, are trapped on the side of the membrane to be enriched, so as to achieve the purpose of separation of mixed gases.
4. Type of nitrogen generator & which type of nitrogen generator is better for coffee:
4.1 Cryogenic Air Separation nitrogen generator
Cryogenic Air Separation nitrogen generator adopts a traditional nitrogen production method with a history of nearly several decades. It uses air as raw material, after compression, purification, and then using heat exchange to liquefy the air into liquid air. Air Liquide is mainly a mixture of liquid oxygen and liquid nitrogen. Taking advantage of the different boiling points of liquid oxygen and liquid nitrogen (at 1 atmosphere, the boiling point of the former is -183°C and the latter is -196°C), through the rectification of Air Liquide , to separate them to obtain nitrogen. Cryogenic air separation nitrogen production equipment is complex, occupies a large area, has high infrastructure costs, a large one-time investment in equipment, high operating costs, slow gas production: 12-24 hours, high installation requirements, and a long cycle. Comprehensive equipment, installation and infrastructure factors, the equipment below 3500Nm3/h, the investment scale of the PSA unit of the same specification is 20% to 50% lower than that of the cryogenic air separation unit. Cryogenic air separation nitrogen plant is suitable for large-scale industrial nitrogen production, but medium and small-scale nitrogen production is uneconomical.
4.2 Molecular sieve air separation nitrogen generator
Using air as raw material, using carbon molecular sieve as adsorbent, using the principle of pressure swing adsorption, using carbon molecular sieve to selectively adsorb oxygen and nitrogen to separate nitrogen and oxygen, is commonly known as PSA nitrogen production. This method is a new nitrogen production technology developed rapidly in the 1970s. Compared with the traditional nitrogen production method, it has the advantages of simple process flow, high degree of automation, fast gas production (15-30 minutes), low energy consumption, product purity can be adjusted in a wide range according to user needs, and convenient operation and maintenance. Low cost, strong device adaptability, etc., so it is quite competitive in nitrogen production equipment below 1000Nm3/h, and is more and more popular with medium and small nitrogen users. PSA nitrogen production has become the first choice for medium and small nitrogen users method.
4.3 Membrane Air Separation nitrogen generator
Using air as the raw material, under certain pressure conditions, oxygen and nitrogen are separated by utilizing the different permeation rates of gases with different properties such as oxygen and nitrogen in the membrane. Compared with other nitrogen-generating equipment, it has the advantages of simpler structure, smaller volume, no switching valve, less maintenance, faster gas production (≤3 minutes), and convenient capacity expansion. It is especially suitable for nitrogen purity ≤ 98% of medium and small nitrogen users have the best performance-price ratio. When the nitrogen purity is above 98%, its price is more than 15% higher than that of the PSA nitrogen generator of the same specification.
5. Features of nitrogen generator: (1) Convenient and quick nitrogen production: Advanced technology and a unique air distributor make the air distribution more uniform and efficiently use carbon molecular sieves to provide qualified nitrogen in about 20 minutes. (2) Easy to use: The equipment is compact in structure, skid-mounted as a whole, occupies a small area and does not require infrastructure investment, and the investment is small. Nitrogen can be produced on site only by connecting the power supply. (3) More economical than other nitrogen supply methods: The PSA process is a simple nitrogen production method, which uses air as the raw material, and the energy consumption is only the electric energy consumed by the air compressor. It has the advantages of low operating cost, low energy consumption, and high efficiency. (4) Mechatronics design realizes automatic operation: Imported PLC controls fully automatic operation, nitrogen flow pressure and purity can be adjusted and displayed continuously, enabling unattended operation. (5) Wide range of applications: Protective gas in metal heat treatment process, gas used in chemical industry production and nitrogen-filled purification of various storage tanks and pipelines, gas used in the production of rubber and plastic products, oxygen-exhausting and fresh-keeping packaging in the food industry, purification and covering gas in the beverage industry, filling gas in the pharmaceutical industry Nitrogen filling and oxygen exhausting of nitrogen packaging and containers, protective gas for electronic components and semiconductor production processes in the electronics industry, etc. The purity, flow and pressure are stable and adjustable to meet the needs of different customers.
6. Technical indicators for N2gasnitrogen generator: Flow: 5-1000Nm3/h Purity: 95%-99.9995% Dew point: ≤-40℃ Pressure: ≤0.8Mpa adjustable Nitrogen generator for sale, Nitrogen generators cost, nitrogen generator for coffee, nitrogen machine for sale
7. More application to other industry: The special nitrogen generator for the oil and gas industry is suitable for nitrogen protection, transportation, covering, replacement, emergency rescue, maintenance, nitrogen injection and oil recovery in mainland oil and natural gas exploitation, coastal and deep sea oil and natural gas exploitation. It has the characteristics of high safety, strong adaptability and continuous production.
The special nitrogen generator for chemical industry is suitable for petrochemical industry, coal chemical industry, salt chemical industry, natural gas chemical industry, fine chemical industry, new materials and other chemical product processing industries. Nitrogen is mainly used for covering, purging, replacement, cleaning and pressure delivery , chemical reaction agitation, chemical fiber production protection, nitrogen filling protection and other fields.
The special nitrogen generator for the metallurgical industry is suitable for heat treatment, bright annealing, protective heating, powder metallurgy, copper and aluminum processing, magnetic material sintering, precious metal processing, bearing production and other fields. It has the characteristics of high purity, continuous production, and some processes require nitrogen to contain a certain amount of hydrogen to increase brightness.
The special nitrogen generator for the coal mine industry is suitable for fire prevention and fire extinguishing in coal mining, gas and gas dilution and other fields. It has three specifications of ground fixed, ground mobile and underground mobile, fully meeting the nitrogen demand under different working conditions.
The special nitrogen generator for the rubber tire industry is suitable for nitrogen protection, molding and other fields during the vulcanization process of rubber and tire production. Especially in the production of all-steel radial tires, the new process of nitrogen vulcanization has gradually replaced the steam vulcanization process. It has the characteristics of high nitrogen purity, continuous production, and high nitrogen pressure.
The special nitrogen generator for the food industry, like nitrogen generation in the coffee industry, is suitable for green storage of grain, nitrogen-filled packaging of food, preservation of vegetables, sealing (canning) and preservation of wine, etc.
The explosion-proof nitrogen generator is suitable for chemical industry, oil and gas and other places with explosion-proof requirements for equipment. Nitrogen generators for the pharmaceutical industry are mainly used in pharmaceutical production, storage, packaging, packaging and other fields. The special nitrogen generator for the electronics industry is suitable for semiconductor production packaging, electronic component production, LED, LCD liquid crystal display, lithium battery production and other fields. The nitrogen generator has the characteristics of high purity, small size, low noise and low energy consumption.
The container-type nitrogen generator is suitable for petroleum, natural gas, chemical industry and other related fields, that is, it has the characteristics of strong adaptability and mobile operation.
Vehicle-mounted mobile nitrogen-generating vehicles are suitable for fields such as oil and gas mining, pipeline purging, replacement, emergency rescue, dilution of flammable gases, and liquids. They are divided into low-pressure, medium-pressure, and high-pressure series, with strong mobility and mobility characteristics of the job.
Car tire nitrogen flushing nitrogen machine is mainly used for car tire nitrogen flushing in car 4S shops and car repair factories, which can prolong the service life of tires, reduce noise and fuel consumption.
8. The benefits of Nitrogen generator for coffee production: Nitrogen can make you drink fresh coffee
8.1 Regarding the definition of fresh coffee, most people agree on the concept of "freshly ground coffee". As its name says, coffee beans are ground and made freshly.
In the field of packaging, coffee beans are regarded as a "dry food" with almost no moisture inside, and general microorganisms cannot reproduce and grow. However, after being ground into a powder, it quickly loses its flavor when exposed to oxygen. Coffee, if not kept properly or not fresh, can unleash microbial problems similar to spoiled nuts. For safety and preservation, the oxygen must be exhausted.
In order to drink a sip of fresh coffee, human beings must compete with technology and nature. Isolating oxygen is the most effective way to ensure the freshness of coffee.
8.2 Deoxygenation and nitrogen filling for coffee.
It is best to extract the air first to form a vacuum bag, and then inject nitrogen that does not react with the food to further prevent the coffee from oxidative deterioration.
In line with this principle is currently the hottest air conditioning packaging technology, packaging materials can well isolate oxygen and steam, food is equivalent to living in an air-conditioned room, but this air-conditioned room adjusts the temperature and is the gas component.
Fortunately, freshness and convenience do not always confront each other. With the support of packaging technologies such as modern materials and craftsmanship, everyone can easily drink a cup of fresh coffee. For Nadaozhong capsules, the coffee beans are pre-ground, and the gaseous components in the capsules are adjusted, which can solve the problem of keeping the coffee powder fresh.
8.3 The preservation of nitrogen for coffee.
The gases most commonly used in modified atmosphere packs are oxygen, carbon dioxide, and nitrogen. In view of the actual situation of coffee, oxygen is eliminated first, and carbon dioxide is also added to the chaos.
Nitrogen has become the first choice for the designated gas "air-conditioned room". There are many advantages to using nitrogen. It is a non-toxic, odorless, inert gas with stable chemical properties, insoluble in food, and has a certain antibacterial effect.
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