What is a split tube furnace?
Split tube furnaces are a popular choice for laboratories as they are extremely versatile. They consist of a furnace body which is split in half, attached by a hinge. This allows easy access to place and remove samples and a range of tube diameters can be used with split tube furnaces.
What are the tubes in a furnace called?
A heat exchanger is a furnace component that’s made of metal shells and tubes. When your furnace turns on, gas is combusted to produce heat. The resulting flue gas enters the heat exchanger and warms it.
How does a tube furnace work?
Tube furnaces are used to synthesize and purify compounds, primarily inorganic. These furnaces consist of a cylindrical cavity that is heated via one or more heating elements outside of the chamber. The cavity’s temperatures can reach up to 1,100°C.
What is a vertical tube furnace?
The HTRV high temperature tube furnaces are designed for vertical orientation and operation up to 1800 °C. The high grade insulation material consisting of fibre plates provides low energy consumption and high heating rates due to its low thermal conductivity.
What are furnace tubes made of?
Extruded tubes made from Kanthal® APMT and Kanthal® APM iron-chromium-aluminium (FeCrAl) and nickel-chromium (NiCr) alloys for gas-heated or electrically heated furnaces.
What is the purpose of having tubes inside the heater?
They are internally lined with refractory using single and multiple burners where fuel is fired for generating heat. The process feed flows inside the tubes and pipes and picks up heat from the hot flue gases generated from burners, mainly through radiation and/or convection.
What are the different types of furnaces?
There are four main types of furnaces: natural gas, oil, electric, and propane. Electric furnaces can heat the air by exposing heated elements, while other types of furnaces typically require a heat exchanger or chamber that warms the surrounding air.
How are furnace tubes made?
Ceramic tubes are manufactured from a mixture that includes ceramic powder. The mixture is extruded through a die to form a tube. The tube is passed through an open-ended dryer, calciner, transition zone, sintering furnace, and cooler. Thereafter, the tube is cut to the desired length (which may be very long).
How long do tube heaters last?
The lifetime of heater tubes varies from 5 yr–15 yr, depending on the material of construction and the severity of conditions they are subjected to during heater operation.
What are the 3 types of furnace?
Three Types of Gas Furnace Systems
- Single-Stage System. This is the most widely used system in Midwestern homes; it was first developed in the 1930s using inexpensive oil and gas.
- Two-Stage System. The next level of comfort is a two-stage system.
- Modulation System.