Volumetric heat exchangers feature an automatic scale removal function, produce no impact noise during operation, are easy to maintain and manage, and have a long service life. But how should we clean volumetric heat exchangers in daily use? And what specific characteristics do they have? The following is an introduction to "Cleaning Instructions for Volumetric Heat Exchangers and Explanation of Their Characteristics".
【Introduction to the Cleaning of Volumetric Heat Exchangers】
The chemical cleaning method for volumetric heat exchangers first began to be used for pasteurization in the dairy industry in the early 1920s.
Due to its unique advantages in manufacturing and application, the concept of volumetric heat exchangers was first proposed in the 19th century. Therefore, it developed rapidly once successfully applied in industry. Early volumetric heat exchangers were mostly used in the food industry; now, their applications have expanded to various industries such as food processing, brewing, chemical engineering, machinery, metallurgy, power generation, and transportation.
【Introduction to Volumetric Heat Exchangers and Their Characteristics】
A volumetric heat exchanger is a type of heat exchanger that realizes heat exchange by allowing cold and hot fluids to alternately flow through the surface of a heat storage medium (filler) in a regenerator. Among them, the shell-and-tube type of volumetric heat exchanger (a subtype) separates cold and hot fluids with a solid partition wall, and heat exchange occurs through this partition wall-thus, it is also called a surface heat exchanger.
Volumetric heat exchangers can be divided into three categories according to different heat transfer methods: mixed-type volumetric heat exchangers, regenerative-type volumetric heat exchangers, and shell-and-tube-type volumetric heat exchangers.
Characteristics of Volumetric Heat Exchangers
- Large temperature drop of heat medium:For steam-water heat exchange, the outlet temperature of condensed water is approximately 50℃, and steam traps need to be installed on the upper and lower parts of the return pipe, which facilitates use and maintenance. For water-water heat exchange, the temperature drop of the heat medium is 2–2.5 times that of the same-type heat exchangers; high-temperature hot water (120–150℃) can be cooled down to 70–75℃ after heat exchange.
- Excellent heat exchange performance, good heat dissipation effect, low heat loss, and energy efficiency:Meanwhile, when steam is used as the heat medium, it can recover about 15% of the total heat exchange capacity in the form of condensate heat.
- Small cold water zone and high volume utilization rate:The area occupied by cold water in the exchanger is small, which maximizes the effective use of the exchanger's internal volume.
- Retains the advantages of large water storage capacity, low head loss, stable water supply, and easy scale removal:It inherits the core advantages of traditional volumetric equipment, ensuring reliable operation while simplifying daily maintenance.
The above introduction to "Cleaning of Volumetric Heat Exchangers" and "Volumetric Heat Exchangers and Their Characteristics" is intended to help you understand "Cleaning Instructions for Volumetric Heat Exchangers and Explanation of Their Characteristics".
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