Double-head threaded installation of electric heating pipe

The ones produced by our factory are made of high-quality seamless electric heating pipes, and metric (imperial) hollow bolts with hexagonal heads are welded to the wiring part for sealed installation. Ruigao brand double-head threaded electric heating tube has the characteristics of simple structure, high mechanical strength, high thermal efficiency, safety and reliability, easy installation and long service life. 1. The process and use of electric heating tubes installed with double-head threads:
Tubular electric heating elements are made of metal tubes (iron, stainless steel, copper, etc.), and spiral electric heating alloy wires (nickel-chromium, nickel-chromium, etc.) are evenly distributed along the central axis of the tube. Iron-chromium alloy) is an electric heating element made by filling the gaps with crystalline magnesia sand with good insulation and thermal conductivity, sealing both ends of the tube mouth with silicone, and then processing it through other processes. This metal armored electric heating element can heat air, metal molds and various liquids. It has the characteristics of simple structure, high mechanical strength, high thermal efficiency, safety and reliability, easy installation and long service life. It is suitable for heating various saltpeter tanks, water tanks, oil tanks, acid-base tanks, and fusible metal melting furnaces, air heating furnaces, drying ovens, hot pressing molds and other devices. Widely used in aviation, shipbuilding, petroleum, chemical industry, washing, chemical fiber, machinery manufacturing, automobiles, motors, radios, instruments, plastics, textiles, food, printing and packaging, rubber, medicine and health, household appliances and other industrial sectors.
2.
Precautions for use
Components are allowed to work under the following conditions:
. The relative humidity of the air is not greater than 100%, and there are no explosive and corrosive gases.
B. The working voltage should not be greater than .times of the rated value, and the shell should be effectively grounded.
Insulation resistance, dielectric strength:/
Electric heating tubes installed with double-headed threads should be positioned and fixed. The effective heating area must be completely immersed in liquid or metal solids. It is strictly prohibited to burn in the air. When scale or carbon is found on the surface of the pipe, it should be cleaned in time before use to avoid affecting heat dissipation and shortening the service life.
When heating fusible metals or solid nitrates, alkali, bitumen, paraffin, etc., the voltage should be lowered first, and then the voltage can be raised to the rated voltage after the medium is melted.
When heating air, the elements should be arranged evenly across each other so that the elements have good heat dissipation conditions and the air flowing through can be fully heated.
When heating nitrate salt, safety measures should be taken into consideration to prevent explosion accidents.
The wiring part should be placed outside the insulation layer to avoid contact with corrosive, explosive media and moisture. The lead wire should be able to withstand the temperature and heating load of the wiring part for a long time. Excessive force should be avoided when tightening the wiring screws.
Components should be stored in a dry place. If the insulation resistance is lower than that due to long-term storage, they can be dried in an oven at about ℃, or the voltage can be reduced and heated until the insulation resistance is restored.
. Install the magnesium oxide powder at the outlet end of the electric heating pipe with double-headed threads to avoid the infiltration of pollutants and moisture in the use place and prevent the occurrence of leakage accidents.