display cases special tools
author: supermarket refrigerated showcase category: walk-in display coolers Views: 583Time: 2016-08-22
display cases special tools
pipeline processing tools
pipeline processing tools mainly include pipe cutters, pipe expansion components, sealing pliers and pipe benders. These tools are dedicated processing tools for the processing of display cases and refrigeration pipelines and the replacement of refrigeration components. (1) Pipe cutter The pipe cutter is mainly used for cutting refrigeration copper pipes in display cases. When repairing display cases, it is often necessary to use a pipe cutter to cut copper pipes of different lengths and diameters. There are different specifications of pipe cutters, and the commonly used pipe cutters are 3~20mm. Because display cases refrigeration cycles have high requirements on pipelines, impurities, dust and metal debris will cause blockages in the refrigeration system. Therefore, special equipment should be used to cut refrigeration copper pipes to ensure that the cut surface of the copper pipes is flat , Smooth, and will not produce metal chips falling into the tube to block the refrigeration cycle system. (2) When the pipe expansion assembly is welding the pipelines of display cases, it is often encountered that two pipes with the same diameter are welded. At this time, it is necessary to use the expansion assembly to expand one of the copper pipes. So that another copper tube can be inserted into the flared copper tube in a more consistent manner. (3) Sealing pliers The sealing pliers are also called vigorous pliers. When the display cases are repaired and the test machine is normal, the sealing pliers are usually used to seal the refrigeration pipeline of the display cases. Usually, after the display cases are repaired and the refrigerant charging test machine is normal, the pressure gauge connected to the display cases must be removed, but the refrigerant in the display cases cannot be leaked. At this time, sealing tongs are needed. Seal the nozzle of the connecting pipe close to the end of the compressor process pipe. When using the sealing pliers, first adjust the jaws of the sealing pliers so that the jaws of the sealing pliers can clamp the process tube (note that it is neither too loose nor too tight), and then select the distance between the process tube and the pressure gauge The position of about 2cm of the welding port is used as the sealing part, and then the process tube is polished with sandpaper, and the sealing part is heated and softened with the gas welding equipment. After the seal is softened, use the sealing pliers to clamp the seal and press the handle of the sealing pliers to seal the nozzle of the process tube. At the same time, use gas welding equipment to heat the end of the seal (5~10cm from the seal), after the copper tube is softened, cut it with wire cutters, and then use gas welding equipment to weld the fracture. After the fracture is welded, remove the sealing pliers, and then repair the sealing part to complete the sealing operation of the process tube.
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