Shanghai Xinzhuang instrument nitrogen blowing instrument use method
Shanghai Xinzhuang Instrument Co., Ltd. develops the NNB brand (LNB) brand nitrogen blowing instrument, energy saving and environmental protection, leading domestic. Professional manufacturing is more secure and affordable.
How it works The nitrogen blower is used to concentrate a large number of samples by rapidly, controlled, and continuously blowing nitrogen onto the surface of the heated liquid sample to achieve rapid concentration of the sample. After the nitrogen blowing device is installed, the chassis is supported in a constant temperature water bath, the water bath power is turned on, the water bath temperature is set, and the water bath starts to heat. The nitrogen blowing instrument is lifted, and the samples that need to be concentrated by evaporation are respectively placed on the sample positioning frame and are lifted by the tray, wherein the height of the tray and the positioning frame can be adjusted according to the size of the sample tube. Open the flow meter needle valve, the nitrogen gas reaches the gas distribution plate through the flow meter and the gas supply pipe, and after the gas is distributed, it is sent to the needle valve tube (mounted on the gas distribution plate) above each sample position. Then, by adjusting the needle valve needle, nitrogen is blown to the liquid sample tube through the needle valve tube and the needle. The needle valve tube can be slid up and down by adjusting the lock nut, the needle height is adjusted, and the sample surface is corrugated, and the sample is not Splashing is good. Finally, the nitrogen blower was placed in a water bath until evaporation and concentration was completed.
The nitrogen blower should be used according to the operating instructions in the manual. The following are general safety knowledge that should be known when using a nitrogen blower. (1) Nitrogen blowing equipment is not used for substances with a burning point below 100 °C. (2) Hands and eyes should be protected when using a nitrogen blower. (3) The nitrogen blower should be used in a fume hood to ensure good ventilation. (4) Do not move the nitrogen blower while heating to prevent burns. (5) Use with a three-wire grounded power supply. (6) Do not open the water bath casing with electricity to prevent electric shock. (7) The maintenance of the nitrogen blower should be carried out by a professional. Improper replacement of the components may cause damage to the nitrogen blower or cause safety hazards. (8) Do not use a nitrogen blower for highly flammable substances such as petroleum ether. (9) Do not use acidic or alkaline substances, otherwise the nitrogen blower will be damaged.
Shanghai Xinzhuang Instrument Co., Ltd. is a professional laboratory equipment, biochemical equipment, ultrasonic equipment, test box laboratory environmental equipment manufacturers, research and development, production, sales of Xinzhuang (LNB) brand instruments - intelligent constant temperature and humidity culture Box, aseptic homogenizer, low temperature constant temperature, welcome to consult and buy! At the same time, in order to better serve users, the company is also equipped with a professional application engineer to answer your questions at any time.
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