Do You Know How to Clean a Displacement Heat Exchanger?

The displacement heat exchanger is mainly composed of a controller motor, temperature control device, thermometer, pressure gauge, pressure pump, container, tank, safety control device, shell, piping, etc. It can realize the heat exchange between hot fluid and cold fluid and is a more common heat exchange device in industrial production. We will introduce its cleaning method below.

Here is the content list:

• Stopping and draining

• Removal of dirt

• Clean water flushing

• Treatment of corrosion

• Choice of cleaning agent

Stopping and draining

Before cleaning the displacement heat exchanger, you need to empty the container of various liquids, you need to shut it down in advance, and the displacement heat exchanger in the work of higher temperatures needs to be cooled before cleaning.

Removal of dirt

Choose the appropriate cleaning agent to remove the dirt from the tank of the displacement heat exchanger and the related piping. Before using the cleaning agent, you need to mix it according to a certain ratio and clear the dirt on the outside first.

Clean water flushing

The side of the pipe of the displacement heat exchanger is connected with clean water, and can also be connected with good baking soda water, with clean water for continuous flushing, so that the water in its tank forms a water circuit, cleaning about 15 minutes later, the water to be removed.

Treatment of corrosion

In the process of the displacement heat exchanger, long time contact with water, there will be rust in the equipment, you can use the paste containing Na on the surface for uniform coating, and need to check the displacement heat exchanger equipment for potential water leakage. Select the corresponding moderator and dehairing antiseptic, add the appropriate amount of water in a certain proportion into the washing pool for water circulation, and after 20 minutes of circulation, carry out the drainage process to separate the clean part and dirt in it. For some fine cracks that appear in the cleaning process, it is necessary to apply the coating of passivation and let it dry naturally.

Choice of cleaning agent

The selection of cleaning agents for displacement heat exchangers requires compliance with some of the following requirements. If there is a large amount of acid in the cleaning agent, it will lead to a chemical reaction between the acid and the metal when cleaning the displacement heat exchanger, and it is more appropriate to choose a volume with a neutral pH value. Cleaning displacement heat exchanger in the liquid, to have no obvious static electricity, static electricity will be conducted to the metal shell, for cleaning will have some hidden dangers.

These are some of the considerations in the process of cleaning the displacement heat exchanger and the choice of cleaning agents. Only if you clean the heat exchanger correctly, you can use it longer. I hope this article will be helpful to you. If you want to buy heat exchangers, you can pay attention to Shanghai Jiangxing Chemical Equipment Co.Led.