How to recycle**
Introduction: **Also known as anhydrous ammonia, is a colorless liquid with a strong pungent odor. For transportation and storage convenience, we usually get gaseous ammonia to obtain liquid ammonia by pressurizing or cooling. In the daily production, how do we recover **? Recovery steps: Edta 2Na,Edta Disodium Salt,Disodium Edta In Food,Disodium Edta Shaanxi United Xingchuang International Co., Ltd. , https://www.lxcgj.com
1, through the spare system in the refrigeration system, storage tanks and other high-pressure storage tanks connected to the oil on the oil collector. At the oil drain valve, another line is connected to the ammonia car. After the ammonia pumping pipes are connected, ammonia is started after the respective valve is opened.
2. After the ** pumping in the two ammonia storage tanks is completed, the small piston compressor is started to continue evacuation, and the small amount of residual ammonia gas that has been extracted is cooled down after being cooled by evaporating and then placed into a standby high pressure liquid storage tank.
3, the system left a small amount of ammonia, through the original configuration of the piston compressor, after the ammonia station, the ammonia valve to open the two exhaust valve, close the remaining two ammonia valve, while cooling the condenser of the small piston compressor The water inlet and outlet are connected to and out of the water line and injected with circulating cooling water for cooling the ammonia gas. The compressor exhaust valve is closed and the gas in the system is sucked out and cooled by a small compressor to release **.
Precautions:
1. When the amount of ammonia in the ammonia tanker reaches the required quantity, the ammonia valve and the oil drain valve must be closed at the same time. Remaining ** in the pipeline between the oil catcher drain valve and the ammonia car inlet ammonia valve, through the ammonia release gate valve installed in the pipe line, discharges the ammonia in the ammonia feed line to the water, and confirms the ammonia feed pipe. When there is no road, remove the ammonia line between the oil collector and ammonia tanker.
2. During the process of extracting **, attention shall be paid to the changes of the temperature and pressure of the machinery and equipment. If any abnormality occurs, ammonia shall be stopped immediately, and after confirming that the cause has been confirmed, ammonia injection shall be carried out.
3, all the valves open and close must be linked to the appropriate sign, after the release of ammonia to restore the original state.
Because ammonia is toxic, and has the characteristics of burning and explosion, it is a medium-temperature refrigerant, and splashing on the skin can cause frostbite and burns. Ammonia vapor is colorless, but it can stimulate people's eyes and respiratory organs. When the volume concentration in the air reaches 0.5-0.6%, people can poison in it for half an hour. Therefore, we must pay attention to safety when recycling **.