A method of ultrasonic cleaning shell and tube heat exchanger
A shell-and-tube heat exchanger and ultrasonic technology, applied in the direction of cleaning heat transfer devices, lighting and heating equipment, etc., can solve the problems of unsatisfactory cleaning effect, damage to equipment, wear of tube bundles, etc., and meet the requirements of ensuring normal working parameters. , The cleaning process is clean and the effect of reducing mechanical wear
Active Publication Date: 2016-08-24
GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD
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Problems solved by technology
For a long time, the cleaning of shell-and-tube heat exchangers has been mainly done manually with cleaning fluid, specifically soaking and rinsing in high-temperature hot water and mechanical dredging. However, due to the strong adhesion of oil stains, the cleaning effect is not ideal, and Mechanical cleaning will wear the tube bundle, cause equipment loss, and even damage the equipment in severe cases
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[0019] A method for ultrasonically cleaning a shell-and-tube heat exchanger, comprising the steps of:
[0020] (1) Put the shell and tube heat exchanger 1 (see the structure figure 1 ) side end cover is removed, and an auxiliary cleaning device is installed at the original end cover position; figure 2 As shown, the auxiliary cleaning device includes a casing 6, the top of the casing 6 is provided with a water supply port 7, the bottom is provided with a water outlet 8, and the casing 6 is fixed with an ultrasonic generating device 9;
[0021] (2) if image 3 As shown, the metal hose 10 is used to connect the water outlet 8 of the auxiliary cleaning device and the shell-side fluid outlet 5 of the shell-and-tube heat exchanger 1, and the fluid outlet 5 of the shell-side of the shell-and-tube heat exchanger 1 is passed through the water supply port 7 of the auxiliary cleaning device. Add cleaning solution at 70-80°C, and stop adding cleaning solution when the shell-side fluid ...
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The invention provides a method for cleaning a shell-and-tube heat exchanger through ultrasonic waves. The method mainly includes the following steps of firstly, detaching an end cap on one side of the shell-and-tube heat exchanger, and installing an auxiliary cleaning device at the position of the existing end cap; secondly, connecting a water outlet of the auxiliary cleaning device with a shell side fluid outlet of the shell-and-tube heat exchanger through a metal hose, and adding cleanout fluid in a shell side of the shell-and-tube heat exchanger through a water supplementing opening of the auxiliary cleaning device; thirdly, starting an ultrasonic wave generating device, and cleaning the shell-and-tube heat exchanger through the ultrasonic waves; fourthly, discharging dirty fluid in the shell-and-tube heat exchanger after cleaning the shell-and-tube heat exchanger for 10 minutes to 30 minutes, repeatedly cleaning the shell-and-tube heat exchanger, and confirming that the shell-and-tube heat exchanger is cleaned up. The method is high in cleaning efficiency and good in cleaning effect; meanwhile, the problems that by means of a traditional cleaning method, mechanical abrasion is caused, and tube bundles are abraded under high pressure are greatly reduced, and the service life of the device is prolonged.
Description
technical field [0001] The invention belongs to the technical field of metallurgical equipment maintenance, and relates to a method for ultrasonically cleaning a shell-and-tube heat exchanger. Background technique [0002] In the field of metallurgy and chemical industry, the shell-and-tube heat exchanger is a commonly used chemical equipment. After a period of use, the surface of the tube bundle of the shell-and-tube heat exchanger will adhere to various dirt, such as oil, grease, dust , rust, etc., will affect the heat exchange effect of the shell-and-tube heat exchanger and reduce the unit cooling capacity. Therefore, regular cleaning is an important link in the maintenance of shell and tube heat exchangers. The quality of the cleaning effect directly affects the process parameters of the shell and tube heat exchangers. For a long time, the cleaning of shell-and-tube heat exchangers has been mainly done manually with cleaning fluid, specifically soaking and rinsing in hi...
Claims
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IPC IPC(8): F28G13/00
Inventor 何明超
Owner GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD