Piston air compressor operation points

1. Preparation before starting (1) Open the cooling water inlet valve and check whether the water supply of each stage cooler cylinder is normal. (2) Check if the oil level in the crankcase is at the specified position. (3) Check if the inlet regulating valve is in the closed state, whether the air compressor outlet venting valve is open, and whether the air supply valve is closed. (4) Whether the electrical equipment is in the starting position. (5) Check if the anchor screw and the coupling screw are loose. (6) Turn the flywheel several turns to check if the flywheel is stuck. 2. Startup step (1) Turn on the power, start the air compressor, pay close attention to whether the oil pressure is normal, and whether there is abnormal sound. (2) If everything is normal, open the inlet regulator. To full open. (3) Gradually close the small outlet venting valve. When the air compressor load is running normally, the air supply valve can be slowly opened. The selection of the installation site of the air compressor is the most neglected by the staff. After the air compressor is purchased, it is easy to find a place. After the piping is used immediately, there is no prior planning. As a result of this sloppy, it has formed the consequences of future air compressor failure, maintenance difficulties and poor air quality, so proper installation site is a prerequisite for the correct use of air compressor system: (1) Choose a wide place with good lighting To facilitate the space and lighting required for operation, maintenance and repair. (2) Choose a place with low air humidity, less dust, fresh air and good ventilation, avoiding water mist, ACID mist, oil mist, dust and multi-fiber environment. (3) According to the requirements of GB50029-2003 "Code for Design of Compressed Air Stations", the heating temperature between machines in compressed air stations should not be lower than 15 °C, and the temperature between machines in non-working hours should not be lower than 5 °C. (4) When the air compressor suction port or the unit cooling air suction port is installed indoors, the indoor ambient temperature should not exceed 40 °C. (5) If the factory environment is poor and there is a lot of dust, pre-filtering equipment must be installed to ensure the service life of the air compressor system parts. (6) When a single air displacement is equal to or greater than 20m3/min and the total installed capacity is equal to or greater than 60 m3/min, the lifting equipment should be installed. The lifting capacity should be based on the air compressor unit. The heaviest component is determined. (7) Reserved channel and maintenance space, according to the requirements of GB50029-2003 "Compressed Air Station Design Specification", the channel width between the air compressor unit and the wall is 0.8~1.5m according to the displacement.

Optical Brightener

Many industries have begun to use optical brighteners, such as paper, plastics, leather, and detergents. At the same time, fluorescent whitening agents are also used in many high-tech fields, such as fluorescence detection, dye lasers, anti-counterfeiting printing, etc., and even high-sensitivity films for high-altitude photography. In order to improve the sensitivity of photosensitive latexes, fluorescence is also used. Brightener.
In China, optical brighteners were first classified as printing and dyeing auxiliary products, and then classified as dye products. Due to its unique properties and large amount of demand, it has been separated from the above two industries and has become a separate class of fine chemical products. The first largest user of domestic fluorescent whitening agents is detergents, the second largest user is paper, and textiles are the third largest user.

Optical Brightener,Fluorescent Brightener,PVC Brightener,Optical Whitener,Brightening Agent

Yucheng Jinhe Industrial Co.,Ltd , https://www.hntitaniumdioxide.com