Method for using filament tube evaporator to remove residues

Abstract

The invention belongs to the technical field of refrigeration, and particularly relates to a method for using a filament tube evaporator to remove residues. According to the processing method, under the pressure of nitrogen, sponge blocks are made to pass through the inner wall of a filament tube evaporator pipeline to be subjected to rust and residue removal, and the method specifically comprises the first step of taking a sponge bar and clipping the sponge bar into the sponge blocks, wherein the volume of each sponge block is 20*15*15 cubic millimeters; the second step of conducting soaking on the sponge blocks obtained in the first step in an oil-removal and dust-removal solvent for 2-5 seconds; the third step of using a tweezer to clamp the soaked sponge blocks obtained in the second step and cramming 2-4 sponge blocks from a pipe orifice of the filament tube evaporator pipeline; the fourth step of making a gun head of a nitrogen gun aim at the pipe orifice of the filament tube evaporator pipeline with nitrogen pressure being larger than 1.5 mpa so as to blow out the sponge blocks obtained in the third step from the other end of the filament tube evaporator pipeline, wherein nitrogen pressure in the fourth step is 1.6 mpa; and the sponge blocks obtained in the second step are soaked in the oil-removal and dust-removal solvent for 4 seconds. According to the method for using the filament tube evaporator to remove the residues, pipeline cleanliness of the filament tube evaporator can be effectively guaranteed.

Description

technical field [0001] The invention belongs to the technical field of refrigeration and relates to a method for removing residues in a silk tube evaporator. Background technique [0002] The evaporator can be roughly divided into the following five categories from the form of its structure: one is the plate evaporator, the so-called plate evaporator is to lay the evaporation tube on the evaporation plate; the other is the tube evaporator, which consists of a simple The evaporation tube is bent; the third is the wire plate evaporator between the plate evaporator and the wire tube evaporator; the fourth is the finned evaporator; the fifth is the wire tube evaporator which is widely used at present. The tubular evaporator has large evaporation area, high evaporation efficiency, low manufacturing cost and simple manufacturing process, so it has been vigorously promoted and used. [0003] The assembly and welding (flame welding) process of the household refrigerator wire tube e...

AI Technical Summary

Problems solved by technology

In order to ensure the evaporation effect of the wire tube evaporator, the inner wall of the coil needs to be degreased and descaled. Since the coil of the evaporator is thin and bent in many places, it is difficult to use it. "(Publication No. CN 101036977 A) discloses the mechanical degreasing and descaling treatment method. Now the method of removing the residue on the inner wall of the coil is to directly use high-pressure gas to blow the pipe. Due to the blowing time and blowing pressure of the employees during the operation Without control, the blowing effect cannot be guaranteed, and the residue inside the pipeline is difficult to remove