Here are some considerations for improving the heating efficiency of infrared heat lamps:
- Installation position and angle
Distance to heated object
The distance between the halogen infrared heater lamp and the object being heated has a significant impact on the heating efficiency. If the distance is too close, the local temperature may be too high, causing the heated object to be heated unevenly, and it may easily cause a waste of energy, because part of the infrared energy may not be fully absorbed due to reflection and other reasons. If the distance is too far, the intensity of infrared rays will weaken when it reaches the heated object, and the heating effect will become worse.
Angle adjustment
It should be ensured that the illumination angle of the infrared heating lamp can cover the object being heated to the greatest extent. If you are heating a flat object, such as a wooden board or metal plate, it is best to install the infrared quartz heating elements perpendicular to the surface of the object. This can ensure vertical incidence of infrared rays, reduce reflection losses, and increase the absorption rate of infrared rays. For irregularly shaped objects, try to adjust the angle so that more infrared rays can illuminate the surface of the object. For example, when heating a curved pipe,halogen heat lamp ir can be installed on both sides of the bend of the pipe and irradiated at an appropriate angle so that infrared rays can spread along the surface of the pipe.
- Use of reflective devices
Reflector installation
Installing a reflective cover is an effective way to improve heating efficiency. The reflective cover can reflect the electric infrared heat lamp for sale lost to the surroundings back to the heated object, increasing the utilization of infrared rays. Generally, reflectors made of aluminum or stainless steel are used. These materials have high reflectivity for infrared rays. The shape of the reflector can be parabolic or hemispherical. The parabolic reflector can focus infrared rays to a smaller area and is suitable for situations requiring local high-intensity heating; the hemispherical reflector can scatter infrared rays to a larger range and is used for large-area heating. When installing, make sure the position of the reflector and the heating lamp matches accurately so that infrared rays can be effectively reflected.
Reflective Material Maintenance
Reflective materials should be inspected and cleaned regularly. If there is dust, oil or other contaminants on the surface of the reflector, its reflectivity will be reduced. For example, when the surface of the reflector is covered with oil, some of the infrared rays will be absorbed during the reflection process, thus affecting the heating efficiency. Therefore, the reflector needs to be wiped regularly with a clean soft cloth to maintain its surface smoothness.
- Characteristics of the heated object
surface properties
The surface color and roughness of the heated object have a great influence on the absorption of infrared rays. Generally speaking, dark-colored objects absorb short wave quartz infrared lamps more easily than light-colored objects. For example, black metal sheets absorb infrared rays much more efficiently than white metal sheets. Therefore, if possible, the surface of the heated object can be treated, such as coating it with dark paint, to improve its ability to absorb infrared rays. At the same time, a rough surface is more likely to absorb infrared rays than a smooth surface, because a rough surface can cause multiple reflections and scattering of infrared rays, increasing the chance of absorption.
The material and thickness of the object
Objects made of different materials have different absorption and conduction capabilities for infrared rays. For example, glass has a weak ability to absorb heating bulb, while most metals and ceramics have a strong ability to absorb infrared rays. For objects with greater thickness, infrared rays need to penetrate the object to increase the internal temperature. In this case, the penetration depth of heating lamp infrared and the thermal conductivity properties of the object must be considered. If the object has poor thermal conductivity, the internal temperature may rise slowly even if the surface temperature rises. Therefore, for heating thick objects, the heating time can be appropriately extended or the power of the heating lamp can be increased.
- Control of heating environment
air movement
Minimize air movement in heated environments. Because the air flow will take away the heat from the surface of the heated object and reduce the heating efficiency. For example, when using an infrared halogen heating lamp to dry ink, if there is strong wind around, the heat on the surface of the ink will be taken away quickly, resulting in a longer drying time. A windshield can be set up around the heating area to reduce interference from outside airflow.
ambient temperature and humidity
Ambient temperature also affects heating efficiency. At lower ambient temperatures, the temperature difference between the heated object and the surrounding environment is larger, and heat is lost faster. Therefore, where possible, increasing the ambient temperature can improve heating efficiency. In addition, a high-humidity environment may affect the absorption of quartz heating ir lamp by the heated object, because the moisture will absorb part of the infrared heating quartz lamp. Therefore, for some heating processes that are sensitive to humidity, such as the drying of certain materials, the ambient humidity can be reduced first and then heated.
