The main methods of direct heating and indirect heating of pipe heaters are introduced.
There are two main heating methods for pipeline heaters: 1. Direct heating (internal heating): paste directly on the pipe in parallel; 2. Indirect heating (far infrared heating): heating by far infrared electric heating device. These two heating methods will be described in detail below.
Method 1: direct heating (internal heat)
Direct heating refers to the transfer of thermal energy in a pipeline heater to a chemical raw material in a pipeline heater reactor through a flanged tube-type electric heating element inserted into the shell of the pipeline heater reactor, or a tubular electric heater in the pipeline heater The components are inserted directly into the reactor of the pipe heater, or the electric heating tubes are evenly distributed on the wall of the pipe heater. This mode is called an internally heated tube heater. The internal heating of the pipe heater is fast and efficient.
The heater is a piping system that generates heaters inside a heater tube reactor, using far-infrared technology that incorporates a uniform distribution tube heater to heat the reactor to heat the electric heater tube. Saves more than 30% of the original HTF line heater and steam heating cost; uses a ducted tube heater as the main component of the heater SCR plus a computer interface temperature control system, and an inline heater uses computer analysis to control the temperature, allowing the operator to change the temperature The far-infrared rays of the heater tube, line heater easily promote blood circulation, beneficial to humans. In terms of energy conservation, the environment, and environmental protection, the development prospects of line heaters and pipeline heaters are also expanding. Correspondingly, many large chemical plants at home and abroad are being replaced by steam heating with far-infrared heating.
Mode 2: Indirect heating (far infrared heating)
In recent years, indirect heating has occurred. The electric heater inside the pipe heater covers the bottom of the reaction kettle and the middle and lower parts of the pipe heater with far-infrared electric heating equipment. The far-infrared electric heating device of the pipe heater has a large heating area in the inner system of the pipe heater, which heats the pipe The temperature of the heater rises steadily and quickly, the heat dissipation of the pipe heater is uniform, the temperature control of the pipe heater is convenient, the pipe heater can be controlled at the upper, middle, and lower parts, and the wall temperature of the pipe heater boiler is easy to control. No side effects, no carbonization in the pipe heater pipe. The pipe heater runs without noise and pollution, and has the characteristics of long life and durability. The energy saving effect of the pipe heater is very obvious.
The far-infrared tube heater heats the dry material, and at the same time absorbs a certain depth of far-infrared radiation energy in the surface molecules of the tube heater and the tube heater. The pipe heater absorbs energy such as solar energy to generate heat, the material in the heating pipe is uniform, and the pipe heater is heated uniformly, which avoids the quantitative change of the pipe heater due to different thermal expansion degrees. Maintain the shape, physical and mechanical properties, fastness and color of the heated object. Pipe heaters are widely used in electronics, electrical appliances, textiles, energy and other fields. The far infrared pipeline electric heater has the advantages of good radiation effect, energy saving, convenient use and strong flexibility.