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Walk-in cooler maintenance pipeline-nitrogen
author: supermarket refrigerated showcase category: walk-in display coolers Views: 560Time: 2016-08-22
walk-in cooler maintenance pipeline-nitrogen and nitrogen bottle
nitrogen and nitrogen bottle Nitrogen is an essential auxiliary material when repairing walk-in cooler pipelines . Nitrogen is generally compressed in steel cylinders (nitrogen cylinders). Nitrogen is required for pipe cleaning, pressure testing, and leak detection of the walk-in cooler. During use, a pressure reducing valve must be connected to the valve port of the nitrogen cylinder, and the exhaust pressure of the nitrogen cylinder must be adjusted as required. After each use, the valve of the cylinder containing nitrogen must be closed. The gas welding equipment will use the gas welding equipment when welding the pipeline of the walk-in cooler. The gas welding equipment used for walk-in cooler maintenance mainly includes welding tools such as oxygen cylinders, acetylene gas cylinders (gas cylinders) and welding torches. Valves and detection instruments are installed on the upper part of the oxygen cylinder. The main valve is located at the top of the oxygen cylinder. The output control valve is also called a pressure reducing valve. The two detection instruments are the total pressure gauge and the output pressure gauge of the oxygen cylinder. The gas cylinder used for gas welding contains the liquefied petroleum oil required for welding with walk-in cooler. There is also a valve on the top of the gas cylinder, whose function is to control the flow of liquefied petroleum gas inside the gas cylinder. Both the gas cylinder and the oxygen cylinder need to be connected to the welding gun through a connecting hose. The welding gun has two ports on its handle, namely a gas input port and an oxygen input port. Both ports are connected to the corresponding gas cylinder and oxygen cylinder through a connecting hose. There are two control knobs at the handle of the welding gun, namely the gas control knob and the oxygen control knob, which are used to adjust the consumption of gas and oxygen respectively. During welding, the best welding temperature can be obtained by adjusting these two control knobs. Since acetylene is a flammable gas and oxygen is a combustion-supporting gas, the oxygen cylinder and the acetylene cylinder should not be placed too close during welding operations, let alone placed in a high temperature place. The steel cylinders containing these two gases should be kept a certain distance apart, and the steel cylinders should be placed in a cool and ventilated place. When not in use, the valves of the two steel cylinders should be closed tightly. After use, the valves of the oxygen cylinder and acetylene cylinder should be closed separately to prevent accidental leakage.
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