How to Choose a Displacement Heat Exchanger

The displacement heat exchanger is a very widely used heat exchanger, which is mainly composed of the body, steam coil assembly, steam import and export, hot and cold water import and export, etc., so how to choose a displacement heat exchanger, today to introduce you to the volumetric heat exchanger selection method is what it is, for your understanding.

Here is the content list:

• Introduction to the displacement heat exchanger

• Advantages of the displacement heat exchanger

• displacement heat exchanger selection method

• Volumetric heat exchanger use

• displacement heat exchanger cleaning method

Introduction to the displacement heat exchanger

The displacement heat exchanger is mainly composed of the body, steam coil components, steam import and export, hot and cold water import and export, etc. In order to prevent corrosion of the inner surface of the vessel, sprayed on the surface was with a layer of anticorrosive alloy layer, and the alloy layer was brushed with a paint layer, the other eliminates the original tube box, steam coil through the flange directly was connected so that the utility model has a simple and reasonable structure, long service life, good heat transfer, energy saving, and other characteristics.

Advantages of the displacement heat exchanger

The displacement heat exchanger has a good heat transfer effect, good heat dissipation, small heat loss, and energy saving. At the same time, when steam is used as the heat medium, it can recover about 15% of the entire heat exchange amount of condensate heat. The cold water area is small and the volume utilization rate is high. Maintain the advantages of displacement heat exchangers with large water storage capacity, low head loss, safe and stable water supply, and easy-to-clean scale.

displacement heat exchanger selection method

Through calculation to complete the selection, calculate the heat transfer area to complete the selection, the production of simple use can also be selected based on experience specifications, most need to complete the selection after detailed calculations. Displacement heat exchanger selection should first consider the hourly water consumption, followed by the buffer volume to prevent hot water from suddenly cold and hot, the general buffer volume is 1/4. of the hourly water consumption. Or according to the buffer water volume of 10-15 minutes.      

Volumetric heat exchanger use

Suitable for hot water supply systems in general industrial and civil buildings. The application of displacement heat exchangers is wide, the heating radiator used for heating in daily life, the condenser in the turbine unit, and the oil cooler on the aerospace rocket, etc. are heat exchangers. It is also widely used in chemical, petroleum, power and atomic energy, and other industrial sectors. Its main function is to ensure that the process of the medium is required by the specific temperature, but also to improve energy utilization is one of the main equipment.

Displacement heat exchanger cleaning method

Due to the very complex pipeline direction, acid cleaning solution is difficult to fill the entire tube cavity, and can not use the traditional cleaning methods of chemical cleaning methods. And the chemical cleaning method is very high cost and very costly. After the change to use the pressure of 1000 bar, a flow rate of 64L / min high-pressure cleaning machine for every thirty meters a section of the cleaning, not only the cost can be greatly reduced, but cleaning efficiency and cleaning effect have also been greatly improved.

The above is some knowledge about the displacement heat exchanger. I hope that you will be able to choose a displacement heat exchanger in the future to help.