Automatic Cleaning Method of Tube and Tube Heat Exchanger

Abstract

The invention discloses an automatic cleaning method for a shell-and-tube heat exchanger and relates to the technical field of industrial heat exchange cleaning. The automatic cleaning method comprises the following steps: S1, detecting a to-be-cleaned region and acquiring the data of the to-be-cleaned region through a sensor; S2, analyzing and storing the data acquired by the sensor; S3, carrying out cleaning operation or moving operation according to an analysis result of the data of the sensor; and S4, completing cleaning and sending out a completion indication signal. The invention provides the safe, efficient and convenient operation method to realize automatic cleaning of the shell-and-tube heat exchanger.

Description

technical field [0001] The invention relates to the technical field of cleaning industrial heat exchangers, in particular to an automatic cleaning method for tube-and-tube heat exchangers. Background technique [0002] Evaporation and heat exchange are widely used equipment in the production process of sugar, chemical, food, pharmaceutical, papermaking, power generation and other industries. Now my country's heat exchanger industry maintains an average annual growth rate of about 10-15%. In 2015, my country's heat exchanger industry The scale of the heat exchanger industry has exceeded 88 billion yuan. By 2020, the scale of my country's heat exchanger industry is expected to reach 150 billion yuan. [0003] Most of the heat exchangers are heat exchange systems with water as the carrier. Some salts crystallize from the water when the temperature rises, and adhere to the surface of the heat exchange tube to form scale. Adding polyphosphate buffers to cooling water can also lea...

AI Technical Summary

Problems solved by technology

Using high-pressure water cleaning to clean the scale of the tube-and-tube heat exchanger is generally carried out by manually poking the tube. Manually operate the high-pressure water jet cleaning water gun, the cleaning pressure is generally 60~100MPa, the labor intensity is high, the working environment is harsh, and there are Great potential safety hazards, frequent industrial accidents

[0006] Mechanical high-pressure water jet cleaning, the current technology is not mature enough, mechanized high-pressure water jet cleaning has developed in recent years, but it is cleaned by using rectangular coordinates or polar coordinates to control the equipment through the database, in harsh working environments Under such circumstances, the equipment failure rate is high, the work is unstable, the maintenance is complicated, and the operator requires a high level of education and technology. A single equipment cannot realize multi-gun operation, and the equipment cannot adapt to the work of heat exchangers of various specifications. It needs to be customized