Solvent evaporation 500ML nitrogen generator manufacturer price

Nantong high-pressure nitrogen generator, high-purity nitrogen generator, nitrogen air generator AYAN-1000LGS

Product Introduction
When two or more gases are mixed through a polymer membrane, the relative permeation rates of different gases in the membrane vary due to differences in their solubility and diffusion coefficients. According to this characteristic, gases can be divided into "fast gas" and "slow gas".
When the mixed gas is driven by the pressure difference on both sides of the membrane, gases with relatively fast permeation rates, such as water, oxygen, carbon dioxide, etc., pass through the membrane and are enriched on the permeation side of the membrane, while gases with relatively slow permeation rates, such as nitrogen, carbon monoxide, argon, etc., are enriched on the retention side, thus achieving the purpose of mixed gas separation.Solvent evaporation 500ML nitrogen generator manufacturer price
When pressurized purified air is used as the gas source, inert gases such as nitrogen are enriched into high-purity for production applications, and oxygen enriched air is discharged from the permeate side. The nitrogen membrane system can increase the nitrogen content in inexpensive air from 78% to over 95%, resulting in 99.9% pure nitrogen.
This nitrogen production method, membrane separation for nitrogen production, has many applications in industry. In laboratories, it is mainly used for blowing, protection, and oxygen replacement that do not require particularly high gas purity. The main advantages of this type of generator are high flow rate, long lifespan, and extremely low maintenance costs; The disadvantage is that the purity of nitrogen cannot reach high-purity level, and the membrane components are currently imported and cannot be provided domestically, resulting in high costs and relatively high instrument prices.

Main features
Three level independent filtration system, particles<0.01um&0.003mg/m3, ensuring continuous gas production of the machine
Nitrogen purity display allows for clear observation of the purity of nitrogen produced by the machine, with high accuracy
Built in compressor, no need for external accessories, and equipped with suspended sound insulation system, low noise
Composite multi-stage air purification with built-in water removal system
Dual pressure adjustable system, easy and convenient to operate
Fully automatic control, one click start and use

Membrane separation nitrogen generator
1.2. Nitrogen production system configuration and parameters
1.2.1 Main technical indicators of mobile nitrogen production system
(1) Nitrogen production rate: 1000L/MIN
(2) Nitrogen purity: 99.999%
(3) Membrane nitrogen pressure: 0-8Mpa adjustable
(4) Product dew point: ≤ -45 ℃

Product Description
The nitrogen generator uses air as raw material, carbon molecular sieve as adsorbent, and applies the principle of pressure swing adsorption to selectively adsorb oxygen and nitrogen on carbon molecular sieve to separate nitrogen and oxygen, commonly known as PSA nitrogen production. This method is a new nitrogen production technology that rapidly developed in the 1970s. Compared with traditional nitrogen production methods, nitrogen generators have the characteristics of simple process flow, high degree of automation, fast gas production (15-30 minutes), low energy consumption, product purity can be adjusted within a large range according to user needs, easy operation and maintenance, low operating costs, and strong adaptability of the device. Therefore, they can produce gas below 1000Nm3/hNitrogen GeneratorThe PSA nitrogen generator is highly competitive and increasingly popular among small and medium-sized nitrogen users. It has become the preferred method for these users.Solvent evaporation 500ML nitrogen generator manufacturer price
Nitrogen generators can be divided into three types based on their principles: electrochemical, pressure swing adsorption, and membrane separation. Among them, the pressure swing adsorption principle can achieve (but not necessarily) a purity of over 99.995%.

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Blocks up and cause blockages. This situation is not common, but it has indeed occurred. The reasons for 'blockage' have been discussed extensively, and now we will introduce the methods for investigating blockages. After the phenomenon of "blockage" occurs, it is necessary to identify the cause, mainly where the blockage occurred. Note that in the vast majority of cases, there will only be one blockage in the entire system. The method of blockage inspection is to disassemble the parts in reverse from the tail to the front, carefully observe the pressure value, and if there is a significant difference in pressure between the installation and removal of a certain component (except for the column), it can be used to determine the changes. As for the blockage of the column, it can be judged by whether the pressure of replacing the column with the same specification is consistent. Let's talk about the issue of "leakage" again. "Leakage" can be divided into two types: liquid leakage and gas leakage. The flow path between the mobile phase bottle and the waste liquid bottle in a leak liquid chromatograph is a fully enclosed system, with high internal pressure but ensuring that no drop leaks externally. If a component leaks, it is the fault. What standards should be used to purchase a gas chromatograph, and how to achieve a higher cost-effectiveness; What indicators are used to evaluate a gas chromatograph, indicating what kind of instrument is useful in the actual analysis and testing process, which can more conveniently, indirectly, and quickly obtain the results of the sample. Generally speaking, the selection of a gas chromatograph should be considered from the following three aspects: practicality, detection limit, and degree of automation. Practicality indicators, to some extent, are cost-effectiveness - broadly speaking, including detection limit and degree of automation; Simply put, it means whether it works or not. The evaluation of practicality should be approached from two aspects: firstly, how much is the budget for one's own instruments, and secondly, how much is the budget to purchase instruments of the appropriate gear within the budget range; On the other hand, it is not necessary to purchase expensive ones as long as they can meet one's own analysis requirements. For example, if the laboratory has 10 analysis projects, would it be more convenient to spend 400000 yuan to purchase an instrument and frequently replace parts to measure different projects? Or would it be more convenient to purchase 10 simple instruments and fix each instrument for a specific project?
The detection limit of an instrument represents the amount of substance to be tested corresponding to a small detection signal that can be distinguished from instrument noise within a certain confidence range. It is an important indicator for evaluating instruments - in simple terms, the lower the detection limit, the stronger the ability to detect low concentration substance content. Therefore, in trace analysis, instruments with lower detection limits should be selected as much as possible. At present, there is not much difference in detection limits between FID and ECD detectors in domestic and foreign gas chromatographs, while other detectors have certain differences.
Extraction is the use of the difference in solubility or distribution ratio of substances in two immiscible (or slightly soluble) solvents to achieve separation. An operation for extracting or purifying the target. Extraction is one of the commonly used methods in organic chemistry experiments for extracting or purifying organic compounds. Application extraction can extract desired substances from solid or liquid mixtures, and can also be used to wash away small amounts of impurities from the mixture. The former is commonly referred to as "extraction" or "washing", while the latter is called "washing". The selection of instruments for liquid extraction is usually done using a separating funnel, which typically has a volume 1-2 times larger than the extracted liquid. The selection of extraction solvent should be based on the solubility of the extracted compound, and it should be easy to separate from the solute, so low boiling point solvents are used. Substances that are generally difficult to dissolve in water are extracted with petroleum ether and other substances; For those that are more soluble, use benzene or extraction; Substances that are easily soluble in water are extracted with ethyl acetate and other solvents. The volume of extraction solvent used each time is generally 1/5 to 1/3 of the extracted liquid, and the total volume of the two should not exceed 2/3 of the total volume of the separating funnel
The operation method is to apply lubricating grease on the piston, plug it and rotate it several times to evenly distribute the grease. Then, use a small rubber ring to cover the small groove at the tail of the piston to prevent it from slipping. Close the piston and load the extract and extraction solvent. Insert the plug and tighten it. First, use the distal end of the index finger of the right hand to press the glass stopper at the top of the funnel, then hold the funnel with the thumb, index finger, and middle finger. Use the index finger and middle finger of the left hand to curl and grip it on the handle of the piston, gently shake the separating funnel up and down to ensure full contact between the two phases and improve extraction efficiency. After shaking several times, tilt the tail of the funnel upwards (towards an unmanned area) and open the piston to release air, in order to relieve the pressure in the funnel. Repeat this process until there is only a small pressure when releasing air, then vigorously shake for 2-3 minutes, let it stand, and wait for the two phases to separate. Open the glass stopper on top and slowly unscrew the piston. The lower liquid will be released from the piston, and sometimes some flocculent substances may appear between the two phases and should be released at the same time. Then pour out the upper liquid from the upper opening of the separating funnel, but do not also release it from the piston to avoid contamination by another liquid remaining on the neck of the funnel. The solution to emulsification phenomenon is to let it sit for a long time;