- 型号:
- 齐全
- 规格:
- 定做
- 功率:
- 定制
The threaded fixed single-ended electric heating pipe produced by Yancheng Zhaishi Electric Heating and Electrical Factory has a structure in which a hexagonal head (for fastening) is welded to the single-ended electric heating pipe wiring part with different sizes (determined by the customer) of metric hollow bolts. It can be divided into two types: hexagonal head upward and downward. It can be widely used to heat various liquid materials and can withstand pressure.
1. Working principle of threaded fixed single-ended electric heating pipe
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.
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, and excessive force should be avoided when tightening the wiring screws.
The magnesium oxide powder at the outlet end of the electric heating tube prevents pollutants and moisture from penetrating into the place of use, and prevents leakage accidents.
6. Performance requirements for threaded fixed single-ended electric heating pipes
, Heating time: under the test voltage, the time for the component to rise from the ambient temperature to the test temperature should not be greater than
, Rated power deviation: Under the condition of sufficient heating, the deviation of the rated power of the component should not exceed the following specified range;
For components with rated power less than or equal to: &;%.
b. For components whose rated power is greater than +%~-% or, whichever is greater.
, leakage current:
, cold leakage current and leakage current after water pressure and sealing test should not exceed.
b. Hot leakage current at operating temperature should not exceed in the formula Calculated value, but the maximum does not exceed
/(&;.)
&;Thermal leakage current
&;Heating length
- Operating temperature ℃
, multiple When components are connected in series to the power supply, the leakage current test should be conducted on this group of components as a whole.
, Insulation resistance
During factory inspection, the cold insulation resistance should not be less than &;
b. After the sealing test, the insulation resistance after long-term storage or use should not be less than &;
. The thermal insulation resistance at operating temperature should not be lower than the calculated value in the formula, but the minimum should not be less than &;
R
『(-.)/』&;.
R &; Thermal insulation resistance &; Flashover and breakdown phenomena
, Ability to withstand power on and off: The component should be able to undergo multiple power on and off tests under the specified test conditions without damage
, Overload capability: The component should be able to withstand power on and off under the specified test conditions Under the test conditions and input power, it should withstand the cyclic overload test without damage
. Heat resistance: The component should withstand the heat resistance test by the stipulated test conditions and test voltage without damage
br/> Zhai's Electric Heating and Electrical Factory can produce various types and shapes of electric heating tubes according to the product drawings and technical requirements designed by users. The component materials can be made according to user requirements, including stainless steel, nickel-based alloy, copper, aluminum, Carbon steel, titanium and other electric heating elements. And committed to product quality and meeting user needs. Yancheng Zhai's Electric Heating and Electrical Factory wholeheartedly welcomes customers to inquire and purchase