Shandong Huaning Electric Heating Technology Co., Ltd.
Application of self-regulating temperature electric heating cable for freezing protection and heat preservation in the steam water boiler system of power plant
The boiler's steam and water system is equipped with a large number of heat instruments and measuring pipelines, which are the eyes and basis for controlling the safe and economical operation of the boiler.
Oct 06,2022
The boiler steam and water system is equipped with a large number of heat instruments and measuring pipelines, which are the eyes and basis of controlling the safe and economical operation of the boiler. In general, outdoor boilers use ordinary mineral wool material to protect against freezing and keep warm, which has a poor anti-freeze effect. In cold weather in winter, the water under static pressure in the measuring transducer and the piping of the instrument often freezes, resulting in abnormal readings of the large area instrument. Which causes the boiler to fail The automatic control of the water supply fails and the operators cannot control and operate it normally, which seriously affects the safe and economical operation of the boiler.
In order to completely eliminate potential safety hazards and ensure safe and economical operation of boilers in winter, Datang Power Thermal Power selected our self-regulating electric heating cables in 2019.
Self-temperature electric heating belt has good temperature control characteristics, high heating speed, intermittent operation, uniform temperature, energy saving, safety and reliability, no overheating, low installation and operation costs, simple maintenance, no environmental pollution, simple automatic control, advantage. Depending on the heating conditions and the length of the pipeline (the maximum length used by our factory is about 10 meters), choose 25DWK2-PF electric heating belt, voltage level: 220 V AC, rated power: 25 W/m. Electric heating system accessories: power explosion-proof junction box, tail junction box, self-adhesive tape, junction box, etc.
Since the installation of the 25DWK2-PF electric heating belt, the factory has made great strides in both the economic and social fields.
Economic effects: First, when the boiler is operating in an emergency mode, due to the freezing of the surface pipe, the boiler fails, the load decreases, the generation of electricity decreases, the exhaust steam is released into the air, which causes a lot of waste. Four boilers can reduce losses due to the reduction of load and waste steam loss by more than 20,000 yuan per year. Twenty, the transmitter of the measuring pipeline kit does not need to be re-insulated every year, which saves material and labor costs. A boiler costs 1,000 yuan a year, and four boilers cost 4,000 yuan. Third, a decrease in labor intensity and the number of service personnel. The cost of repairing the four boilers is 36,000 yuan. It can save more than 24,000 yuan for the power plant every year.
Economic effects: First, when the boiler is operating in an abnormal mode due to the freezing of surface pipes, the boiler is forced to reduce load, reduce power generation, and emit steam into the air, resulting in large losses. Four boilers can reduce losses due to the reduction of load and waste steam loss by more than 20,000 yuan per year. Twenty, the transmitter of the measuring pipeline kit does not need to be re-insulated every year, which saves material and labor costs. A boiler costs 1,000 yuan a year, and four boilers cost 4,000 yuan. Thirdly, the labor intensity and the number of service personnel are decreasing. The cost of repairing the four boilers was 36,000 yuan. It can save more than 24,000 yuan for the power plant every year.
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