The purpose of a heat exchanger is to transfer heat between two or more fluids (liquids, vapors, or gases) that have different temperatures. The heat transfer process can be gas-to-gas, liquid-to-gas, or liquid-to-liquid, and it can take place through a solid separator, which prevents fluid mixing, or direct fluid contact, depending on the kind of heat-exchanger used.
Other design aspects, including building materials and components, heat transfer techniques, and flow configurations, classify the many types of heat-exchangers that are available. These heat-exchanging appliances come in a broad variety of designs and types for both heating and cooling purposes in several sectors.
This article is about heat exchangers, and it explores the many designs and varieties available, as well as details their roles and mechanics. This article also discusses the considerations for each type of heat-exchanging device, as well as common applications.
What types of fluids can a heat exchanger work with?
The type of heat-exchanger as well as the available material determine fluid acceptability for use with a heat exchanger. These heat-exchangers can handle most fluids, including water, oil, water glycol, and saltwater. Handling highly corrosive fluids, such as chlorine salt water, cooled salt water, refrigerates, and acids, requires the use of other materials, such as stainless steel and titanium.
What industries specifically use heat exchangers?
Heat exchangers are in the food, dairy, beverage, and pharmaceutical sectors as part of an effective, sanitary manufacturing process. Compliance with regulatory criteria necessitates stringent process control to maintain the ideal temperatures for pasteurization, filling processes and food safety.
Food, Dairy, and Beverage Applications –
Heat-exchangers minimize or remove microbial contamination in order to make items safe for consumption and avoid spoiling. Heat-exchangers also heat or cool materials throughout various phases of processing, such as filling, drying, and concentration. Heat exchangers utilize unique designs to enhance efficiency in order to fulfill processing needs for goods with varying viscosities.
Pharmaceutical Applications –
Pharmaceutical applications necessitate a system that can maintain exact temperatures for certain periods of time in order to assure product safety and integrity. Heat exchangers are an efficient means of controlling the temperature in a range of pharmaceutical operations.
- Cosmetic solutions
- Pharmaceutical combining and mixing
- Temperature control for purified water
Different types of Heat Exchangers –
In this part, we will go through the many types of heat exchangers to assist you to decide what is the best and most appropriate equipment for your organization. Here are the 4 different categories of heat exchangers.
Double Tube Heat Exchanger –
Double-tube heat exchangers employ a tube inside a tube structure. There are two pipes, one of which is built within the other. As in the last example, one fluid flows through the inner pipe while the second fluid circulates around the first in the outer pipe. This is the most basic and least expensive form of heat exchanger available. Its small size makes it appropriate for limited places, giving greater flexibility in the production process arrangement by Heat Exchanger Makers.
Shell and Tube Heat Exchanger –
Shell and tube heat-exchangers are the most adaptable of all heat-exchanger designs. A shell and tube heat exchanger is the composition of many tubes inside a cylindrical shell. The usual design of this type of heat-exchanger provides for a wide range of pressures and temperatures. Using a shell and tube heat-exchanger is an option to consider if you need to cool or heat a large number of fluids or gases. Despite being smaller than some other types, a shell and tube heat exchanger is still simple to disassemble, facilitating cleaning and repairs.
Tube-in-Tube Heat Exchanger –
A tube-in-tube heat-exchanger, like other types of heat exchangers, is composed of two tubes, one for each fluid. The tubes, on the other hand, are twisted together to produce an outside and interior design. A tube-in-tube configuration may be used in a variety of ways. Most designs by the Heat-Exchanger Maker for this kind are negligible since the tubes are coiled together. The main uses of a tube-in-tube heat-exchanger are in high-temperature and high-pressure environments. A tube-in-tube heat exchanger is more efficient since it operates at a higher output.
Plate Heat Exchanger –
All of the heat-exchangers examined thus far share a similar design, with the exception of the plate heat-exchanger. Metal plates transfer heat between two fluids. The plate is a metal casing with gaps within that serve as passageways for fluids to flow through. Because a plate heat-exchanger has a larger surface area in contact with the fluids. Additionally, it has faster heat transfer rates than any other kind. Although plate heat-exchangers are more costly, the increased efficiency is a significant benefit. The best applications for this kind of heat exchanger are in settings like power plants due to its robustness and low repair costs.
Applications of Heat Exchangers
Double Tube Heat Exchanger Application –
- Heat recovery in operations that exhaust hot gases frequently uses finned tube heat-exchangers.
- The gas transfers heat to a liquid, typically water or thermal oil, enabling the heated liquid for applications requiring less energy for heating.
- Double tube heat exchangers are perfect for chemical applications, steam cooling of petrochemicals, textile processing, drying of grains, curing of concrete, making paper, and food processing.
- Because air is the most often used process fluid on the globe, the application range is quite broad.
Shell and Tube Heat Exchanger Application –
- These Shell and Tube Heat-Exchangers are commonly employed in high-pressure applications.
- A shell and tube bank may not be the best containment option for hot gases. Especially if the gases are unpleasant and hazardous to health.
- The oil, gas, and chemical industries frequently employ shell and tube, heat-exchanger.
Plate Heat Exchanger Applications –
- Most commonly used for liquid-to-liquid applications, such as heating hot process water containing chemicals/contaminants to create clean hot water.
- Plate heat-exchangers or gasket plate heat exchangers are advantageous for district heating systems because they enable individual homes to use the proper quantity of hot water from a centralized source.
Tube and Tube Heat Exchanger –
- A tube-in-tube heat exchanger can achieve 100% countercurrent flow, permitting temperature crossover. As well as heating the cold fluid above the hot fluid exit temperature.
- When a direct steam injection heat exchanger is not available, tube-in-tube heat exchangers are in the preheating and cooling portions.
- The heat exchangers in the preheat and cooling portions use indirect heat transfer. Thus the final heating is by injecting steam directly into the product by direct steam infusion.
Our objective at Alaqua is to supply and Heat Exchanger Maker in USA for you that provides high-quality stainless steel equipment. Though it will help in the smooth and effective functioning of your business. To meet all of your commercial demands, we provide heat exchangers that include plates. Additionally tube-in-tube, double tubes or pipes, and shells and tubes. If you already have heat exchangers, we also carry components like valves and frames. Learn more about the solutions we offer, and the tools we employ for processing. As well as our stainless steel storage tanks, then contact us right away to get going.