Shandong Huaning Electric Heating Technology Co., Ltd.
Working principle The temperature sensor located on the pipeline transmits the measured temperature to the temperature control meter in the intelligent temperature control box via the signal cable, and the temperature control meter compares the obtained temperature with the specified temperature, and the current temperature is above set. Preset temperature When the current temperature is lower than the set temperature, electric heating does not work To avoid frequent starts, hysteresis is usually set, the junction box can also be connected to the central control room or DCS system by remote communication, can observe and control the start and stop of the electric heating cable at the remote end. Construction and installation The electric heating cables on the pipeline are usually done by direct laying or winding. When installed, it is fixed with a heat-resistant self-adhesive tape at 60 cm intervals. The heating area of the large pipeline, the power distribution box and the temperature sensor are fixed on the pipeline with stainless steel belts. If the temperature of the second junction box and the third junction box is 200 °C, it is usually fixed by the stainless steel tape. |
 |
FAQ
Why is the outlet temperature of the electric heater abnormal/the temperature cannot reach the required temperature?
Temperature controller failure, electric heating tube failure, control circuit failure, insufficient air volume or low air pressure inside the heater body, cooling fan damage, etc.
Why does the electric heater fail to heat?
The heating wire is burned out, the internal junction box or external line is broken or loose, the power supply phase is missing, the electric control board is damaged, etc.
Why does abnormal heating occur (overheating or no heating)
Improper design: Exceeding the maximum operating length of the heating cable results in excessive voltage drop and insufficient power. Overlapping heating: Overlapping parallel heating cables, if not self-limiting, can cause burnout due to the combined heat. Insulation issues: Lack of insulation, thin or uneven insulation, leading to heat loss and prolonged operation of the heating cable in low or humid conditions, affecting its efficiency and lifespan.
Causes of short circuits/open circuits
Installation damage: Repeated bending, dragging, or excessive flexing of the heating cable during installation can damage its insulation. Wiring issues: Improper installation of wiring accessories can damage waterproof seals, allowing moisture or corrosive substances to enter and cause short circuits or leakage. External physical damage: Activities such as pipeline maintenance, cross-operation, and equipment lifting can cause physical damage to the heating cable.
Keywords
Fire protection of buildings
Fire protection of buildings
Contact Us
Classification
Related Products
Oil well heating cable is a product specially designed for oil production. This can significantly improve the average throughput safely, quickly and efficiently.
Continuous Heating Cable of Steel Pipe
The continuous heating system of steel pipes is an electrical heating system that integrates heating and thawing in oil and gas production, liquid and gas transportation through pipelines. Since the protective layer of the cable is a steel pipe, it is compatible with P46, polyethylene, polypropylene cables.
HGL (RDP, JPB) High Temperature Constant Power Electric Heating Belt
The working principle of the HGL type high temperature constant power electric heating belt is the same as that of the HBL type parallel constant power electric heating belt, and its structure is similar.
HBL (RDP, JFB, BL) parallel electric constant power heating belt
A series of constant power parallel electric heating tapes have a constant calorific value per unit length.
Self-adjustable low temperature series
Shandong Huaning designed low temperature self-regulating electric heating belt suitable for common areas, hazardous areas, corrosion zones, etc. D. And used to keep heat, prevent coagulation and freezing. The standard color of the low temperature self-regulating electric heating belt is black or blue, and the main belt can withstand temperatures up to 90 °C.
Need help to find the right solution with our experts?
WhatApp:
E-mail:
Address:
Xinxing Street, Industrial Park, Shanghe County, Jinan City, Shandong Province
✪ Huaning Electric Heat Tracing provides you with professional solutions
