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Ex. heat stands for external or explosion-proof electric heat, which is used to generate heat in facilities or equipment prone to explosion due to flammable gases, vapors, or combustible dust. Classified heating devices are used in hazardous areas to prevent ignition sources from exceeding a specified temperature, which is known as the temperature class. External explosion-proof electric heat comes in various types:
Explosion-proof electric heat trace
Heat tracing is a method of maintaining or raising the temperature of pipelines, vessels, and equipment by wrapping them with tracing cables. Heat tracing cables generate controlled heat through electric resistance to prevent freezing, viscous fluid flow, or condensation in hazardous locations. Electric heat tracing is an ideal solution for temperature maintenance in potentially hazardous or explosion-prone environments where traditional heat tracing systems are not practical.
Explosion-proof electric radiant heaters
Radiant heaters are preferred in industrial applications due to their ability to heat objects directly. These heaters feature explosion-proof enclosures that house high-intensity lamps. The lamps produce infrared radiation that penetrates the outer layer of the skin or material and increases the temperature. Direct radiant heating provides fast and effective heating while minimizing air temperature rise, making it ideal for spaces with low ceilings or poor ventilation.
Explosion-proof electric air heaters
Air heaters are used to heat air or other gases in industrial facilities. They feature explosion-proof electric heating elements encapsulated in a metal housing. The elements operate at high temperatures to raise the gas temperature as it passes through the heater. Air heaters provide reliable and efficient gas heating for processes requiring specific gas temperature management.
Explosion-proof immersion heaters
Immersion heaters are used to heat liquids in vessels, tanks, or reactors. These heaters have explosion-proof electric heating elements that can be safely submerged in hazardous liquids. The elements heat the liquid directly, providing fast and efficient heating to achieve the desired temperature. Immersion heaters are ideal for processes requiring precise liquid temperature control in hazardous locations.
Explosion-proof electric barrel heaters
Barrel heaters are used to heat drums or barrels containing hazardous liquids or solids. These heaters have explosion-proof electric heating jackets that wrap around the barrel. The jackets insulate the heating elements to maintain uniform heating of the barrel contents. Barrel heaters prevent hazardous liquids from固, or improve the flow characteristics of viscous liquids during transfer. They ensure safe and efficient heating in hazardous locations.
Explosion-proof electric blowers
Blowers are used to provide air circulation or ventilation in hazardous areas. They have explosion-proof electric motors that power the blower wheels. The motors are encased in explosion-proof housings to prevent ignition sources. Blowers ensure safe air movement in hazardous locations by promoting ventilation and preventing the accumulation of explosive atmospheres.
Explosion-proof heaters are electric heaters that are used in places where explosions can occur. They provide safe heating because they cannot cause explosions themselves. The heaters have features like explosion-proof motors, air tightness, and safety controls that prevent any spark or emissions that could ignite explosions.
Features of explosion proof heaters include:
Customers looking to buy EX heat are looking for safe, clean, and highly efficient heating. Thus, industries that require heating solutions for highly combustible and hazardous materials use this type of heating. Some of these applications include;
Hydrocarbon heaters:
Heat exchangers, reactors, and other process equipment are preheated with hydrocarbon external heating systems to encourage combustion and improve ignition qualities in hydrocarbon fuels. The type of heat external to the hydrocarbon provides a reliable ignition source for the efficient and safe combustion of hydrocarbon fuels in industrial settings.
Industrial furnaces:
An external heater can be used in an industrial furnace to preheat the air supply to the burner. Preheating the intake air can improve the furnace's overall efficiency and reduce emissions. This is accomplished by optimizing combustion and reducing the amount of fuel needed to reach the desired temperature. Additionally, preheating the intake air can help to reduce the formation of greenhouse gases by improving combustion efficiency.
Package boilers:
External package boilers generate heat that is transmitted through pipes to designated areas where it is required for heating or other processes. These external boilers are an effective method of providing consistent, controlled heat for industrial and commercial applications.
Heat treatment:
Heat treatment involves utilizing externally heated furnaces to raise the temperature of a metal to a predetermined level and then hold it at that level to undergo transformation before being cooled to room temperature.
For wholesale buyers of explosion-proof heaters, it is not enough to know about the different types and applications. Buyers need to know how to select the right model suitable for their needs. Here are some of the crucial factors to consider.
Heat Output and size
An important factor to consider when choosing an ex-heat type is the heating capacity. Calculate the amount of heat required by the space to be heated. Also, determine the heater size suitable for that requirement. Higher heat output models are capable of generating more heat.
Area of Application
The type of explosion proof heater to choose is highly influenced by the area where it will be applied. Portable heaters will be suitable for outside applications like oil rigs and workshop. Fixed heaters are suitable for enclosed spaces like tanks and vessels.
Power Supply
Ensure that the heater is compatible with the electricity supply in the region. i.e. voltage and frequency. Models with multi-voltage options provide great flexibility. However, they must meet other electrical requirements for safety and efficiency.
Control Options and Features
Buyers should choose explosion proof heaters that have control options that suit their needs. Basic models feature manual control, while more sophisticated models come with digital control that allows for greater adjustment over heating parameters. Also, explosion proof heaters may have additional control functions such as adjustable thermostat, PID control and modulation control.
Safety Measures
Always ensure the heater has undergone certified inspection to validate that it meets safety standards. Explosion-proof heaters must have safety measures against possible heater explosions. Also, buyers should consider heaters with safety explosion-proof measures like overheating protection, fault, and failure detection, and emergency shut-off.
Material and Maintenance
The construction material influences the durability and maintenance of the heater. Buyers need to choose heaters with long-lasting materials that require little maintenance. Also, the material impact the corrosion resistance of the heater in a harsh environment. Stainless steel and carbon steel with protective coatings are common options.
Budget
Buyers must consider their budget when selecting an explosion-proof heater. But they should note that the initial cost isn't the only expense. Costs of installation, operation, and maintenance should also be in mind. Buyers should also consider the long-term savings offered by energy-efficient heaters.
Q1: What are the types of exothermic heat?
A1: There are various kinds of exothermic reactions, such as combustion, respiration, neutralization, rusting, and cement setting. All these reactions release heat and cause an increase in temperature.
Q2: What is an example of exothermic heating?
A2: Fire is an example of an exothermic reaction, specifically combustion. Other instances include burning fossil fuels like coal, petroleum, and natural gas, as well as respiration in living organisms and the formation of ozone in the atmosphere.
Q3: What are the benefits of exothermic heat?
A3: Businesses can use the exothermic reaction for heating, and there is no external energy necessary for the reaction to occur. This kind of heating doesn't require fuel and uses reactants directly, producing heat that can be used for any purpose.
Q4: What is exothermic heat for a plant?
A4: Exothermic reactions help plants to survive in different ways. For instance, respiration is an exothermic reaction that takes place in plant cells. It converts glucose into energy, which then helps the plants to grow. The energy also helps in the reproduction of the plants.