Shandong Huaning Electric Heating Technology Co., Ltd.
The electric air duct heater is mainly used to heat the air in the air duct. The specifications are divided into three types: low temperature, medium temperature and high temperature. The general design is that the steel plate is used to support the electric heating tube. To reduce the vibration of the electric heating tube. All are equipped with overheating control devices. In addition, in terms of control, in addition to overheating protection, an intermodal device is installed between the fan and the heater to enable the electric heater to start after the fan is started, and a differential pressure device. Is added before and after the heater to prevent fan failure, the gas pressure heated by the duct heater should generally not exceed 0.3 kg/cm 2. If it is necessary to exceed the above pressure, use the circulating electric heater, the maximum heating temperature of the gas of the low temperature heater should not exceed 160 ° C, ℃, the high temperature type does not exceed 500 ℃.
Electric duct heaters are used in industrial ducts, air conditioning ducts and various industries to heat air in order to increase the temperature of the outlet air and, as a rule, are inserted into the side holes of the ducts. According to the operating temperature of the air duct, it can be divided into low-temperature, medium-temperature and high-temperature; according to the wind speed in the air channel, it can be divided into low wind speed, medium wind speed and high wind speed.
Appendix
The electric channel heater is mainly used to heat the required airflow from the initial temperature to the required air temperature, up to 850 °C. It is widely used in many research and production laboratories, such as aerospace, weapons, chemical industries, and colleges and universities. It is especially suitable for automatic temperature control and testing combined systems and accessories with large flow and high temperature. The air electric heater has a wide range of applications: it can heat any gas, and the hot air produced is dry, moisture-free, non-conductive, non-combustible, non-explosive, chemical corrosion-free, non-polluting, safe and reliable, and the heated room is quickly heated (manageable)
(Note: Low-power duct heaters include a heater housing, an electrical control cabinet, a fan, pipes, etc.)
b. Installation Precautions and Usage Instructions
Use Instructions:
It is connected end-to-end with a flange connection. When working in heating mode, the air flow passes through the electric heating, and the electric heating supplements the heat to the wind and causes it to warm up, and then directs it to the end user. The power of the electric heater must be supplied from the corresponding contactor in the corresponding main power control unit, and the user can design the control circuit according to actual needs. In
Precautions:
Although the electric heater is equipped with thermal protection, which can automatically turn off the power supply, it can only be used when there is wind in the duct, and it is necessary to avoid accidents caused by the heater. Before heating, check that all related components are in normal condition and make sure that the fan is working normally before turning on the electric heater, thus eliminating the possibility of dry heating without wind and ultra-high temperature. It is recommended to control it with Fun.
The voltage of the power supply shall be equal to the voltage of the electric heater, and the main power of the electric heater shall be provided separately. The electric heater must be properly connected to the control circuit before it can be used. In
Despite the fact that the electric heater is equipped with various protective devices, all wiring terminals should be tested for strength before use. Grounding measures should be taken to ensure safety. The
Air intake of the electric heater should be equipped with a mesh filter, and the mesh filter should be cleaned regularly to prevent various foreign objects from entering and damage to the heating tube or affecting the service life and heat dissipation efficiency of the heating tube.
When installing, the distance between the terminals should be at least one meter, which is convenient for repair and maintenance.
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Channel electric heater
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