After the accumulator runs for a period of time, due to the impact of air flow back and forth, the filled pebbles will gradually be compacted and sink. In addition, the amount of pebbles will be insufficient due to the abrasion or breakage of pebbles. If the pebble is not filled tightly, the air will drive the pebble to jump up and down, which is easy to damage the coil, which can be judged from the sound of hitting the pipe wall. The lack of pebbles also affects the heat storage capacity. Therefore, it is necessary to supplement in time. In addition to reducing the air loss and reducing the resistance of the equipment as far as possible, the factors that affect the oxygen production of air separation plant manufacturers can increase the air volume; In addition to reducing the loss of cooling, incomplete loss of heat exchange and leakage as much as possible to reduce the amount of expansion air, this paper mainly analyzes the method of adjusting the output from the perspective of adjusting the distillation conditions.
The heat q is transferred from wall 1 to wall 2 (temperature TW2) through the inside of the wall. This process of heat transfer in solid is purely by molecular collision, which is called heat conduction (or heat conduction). Heat conduction can also be carried out in liquid and gas, but pure heat conduction can only occur in static fluid. The water from the air separation plant is sprayed from the top of the tower to contact and mix with the air to cool the air. A number of cross flow sieve plates or fillers are set in the air cooling tower to increase the gas-liquid contact area. In order to separate the water, a water capture layer is set on the top of the tower. When the air flow rate in the air cooling tower is too fast, the water carrying or spraying amount is too much, and the water level automatic regulation fails, the water inflow accident of Molecular Sieve Purifier will occur.
In pipe test of heat exchanger of air separation plant manufacturer. Close the high pressure air throttle valve and the high pressure air inlet valve of the expander, install the high pressure gauge and open the valve. Open one blow off valve of the lower tower and one blow off valve of the upper tower, and the gas source is introduced from the blow off-2 valve. Open the blow off-1 valve to check whether the gas is discharged, and then close it. When the pressure of the heat exchanger rises to 1MPa, stop the air intake and check whether there is air leakage at the external connection. When the air cooling tower is put into use, the pilot gas is required, and then the water pump is started. This is a measure to prevent air from carrying water. Because the pressure of the air in the tower before charging is atmospheric pressure, when the high-pressure air with a pressure of about 0.5MPa (gauge pressure) is introduced into the tower, due to the expansion of the volume, the pressure will suddenly decrease and the air flow speed will increase sharply, which has a strong impact and entrainment effect.
As a convenient cold source, liquid nitrogen is widely used in food industry, medical treatment, animal husbandry and scientific research. The products of air separation plant of air separation plant manufacturers are various in specifications due to different output, varieties and forms. In order to be easy to identify, a unified product model code has been compiled in China. It consists of Pinyin letters and numbers. The first (or one or two) letter indicates the product category; The second letter indicates the process and structural characteristics; The next is the chemical element symbol of the product; For gas, it refers to the volume under standard state (0 ℃, 0.101325mpa); The last is the variant design number.
