What is Half-Pipe Coil?
Half-Pipe Coil Introduction:
The half-tube coil is an important heat exchange equipment, widely used in refrigeration, HVAC and heat exchange. The following are some key features and components of the half-tube coil:
Structural design of Half-Pipe Coil:
1.Physical structure: The half-pipe coil is usually composed of a series of semicircular tubes, which are arranged in a circular or spiral manner to form an integral coil structure.
2.Material selection: Commonly used materials include copper, stainless steel and carbon steel, etc., which are mainly selected according to the properties of the working fluid and the working conditions such as temperature and pressure.
3.Manufacturing process:
Half-pipe forming: Use steel strips for pressing and forming, and then grind and process the edges to meet welding requirements.
Welding assembly: Weld the formed half-pipe to the cylinder of the equipment. The welding method usually uses argon arc welding for primer, and then argon arc welding or gas shielded welding for cover. When welding, pay attention to controlling the welding parameters to ensure the quality of the weld and avoid defects such as pores, slag inclusions, and incomplete penetration.
Half-Pipe Coil
Working Principle of Half-Pipe Coil
Heat exchange mechanism: The fluid enters the half-pipe coil from one port and exchanges heat with the tube wall during the flow in the tube. This design helps to increase the contact area between the fluid and the tube wall, thereby improving the heat exchange efficiency.
Fluid dynamics: In some applications, the fluid can form a circulating flow in the coil to further enhance the heat exchange effect.
Advantages of Half-Pipe Coil:
High-efficiency heat exchange performance: Due to the unique structural design, half-pipe coils can improve the heat exchange rate.
Design flexibility: The number, arrangement and material of tubes can be adjusted according to specific needs.
Space saving: Compared with traditional heat exchangers, half-pipe coils take up less space and are suitable for installation in limited spaces.
Chemical composition and characteristics of Half-Pipe Coil
The following is a table of chemical compositions of commonly used materials for Half-Pipe Coil:
| Material Type | Main Ingredients | Features |
| stainless steel | Fe,Cr16-20%,Ni8-14%,(Mo，2-3% ,Series 316 only ) | Strong corrosion resistance, suitable for chemical industry, food and other industries. |
| carbon steel | Fe,C，0.25-0.29%,Mn，0.27-1.06% | Low cost, high strength, but poor corrosion resistance |
| titanium alloy | Ti，≥99%,Al，5.5-6.75%,V，3.5-4.5% | Lightweight, excellent corrosion resistance, suitable for high-end field. |
| nickel-base alloy | Ni，≥72%,Cr,14-17%,Mo，15-17% | High temperature resistance, corrosion resistance, suitable for extreme environments. |
| copper alloy | Cu，60-90%,Zn，10-40%,Sn，10-20% | Excellent heat conduction performance, but poor corrosion resistance. |
| duplex stainless steel | Fe,Cr，22-23%,Ni，4.5-6.5%,Mo，3-3.5%,N，0.14-0.20% | Both high strength and high corrosion resistance, suitable for Marine engineering and chemical equipment. |
The Half-Pipe Coil application domain
Refrigeration system: In the refrigeration equipment such as air conditioner and refrigerator, the half-tube coil is used as an evaporator or condenser. HVAC system: In the heating system, the half-tube coil can be used for heating and heat exchange. Industrial applications: In some industrial processes, the half-tube coil is used for the temperature regulation and heat exchange of various media.
FAQ:
The half-tube jacket is the type of heating / cooling jacket commonly used in the chemical industry, which uses a 180 segment wrapped on the outside of the container. This jacket, also known as a split coil jacket or a half-tube jacket, provides excellent heat transfer effects and is often used for higher temperatures.