Key points for safe operation of large-scale cold storage refrigeration operators

Key points for safe operation of large-scale cold storage refrigeration operators

The main points of safe operation are as follows:

　　1, safe operation regulations

　　 Generally, there should be safety operating procedures for the machines and equipment of refrigeration installations, and refrigeration operators must strictly follow them to ensure safe production.

　　 2. Familiar with the entire refrigeration system

　　The refrigeration operator must be familiar with the whole set of refrigeration process system diagrams of our factory (unit), and should be familiar with the names and specifications of the main equipment.

　　3. The refrigeration operators in the computer room should achieve "four requirements", "four diligence" and "four timely".

　　① "Four essentials" must ensure safe operation, ensure warehouse temperature, reduce condensing pressure as much as possible, and fully develop

　　 Improve the cooling efficiency of the equipment.

　　②"Four Qin": look at the instrument frequently, check the temperature of the machine, listen to the sound of the machine, and understand the warehouse in and out

Happening.

　　③"Four in time": timely drain oil, timely flush frost, timely release air, and timely clean condenser scale.

　　4, the valve opens slowly

　　Various valves on machinery and equipment pipelines should be opened slowly when opening.

　　 5. Constant water

　　 When the compressor is running, the condenser must not be cut off (stop running)

　　6, the liquid level is maintained at the specified value

　　 The liquid level of the high-pressure reservoir shall neither exceed 80% nor less than 30%.

　　7, protect

　　When performing operations such as adding ammonia or draining oil to the refrigeration system, the refrigeration operator should wear rubber gloves and a gas-proof surface

　　 tool to prevent burns on hands and face.

　　 8. Avoid opening by mistake

　　 For the standby valve (regulation station, etc.) that is open to the atmosphere, the ammonia valve or the sewage (oil discharge) set in the quick freezing room

　　 valve, the hand wheel should be removed at ordinary times to avoid opening by mistake.

　　9, hanging up and closing signs

　　In order to avoid misoperation, the position and purpose of each control valve of the regulating station should be marked, and the handwheel of each valve should be

　　 Open and close cards.

　　 10. Make a record

　　 The operation and maintenance of the compressor should be recorded in a timely and correct manner.