DIANREZHANELECTRIC HEATINGKnowledge中文
INDUSTRIAL HEATING KNOWLEDGE
Straight answers,before you buy.
No brochure language here — just the questions that decide real projects: why thermal oil cokes, how to size duct heaters, how Ex classes actually match, where installations go wrong. Read one, then check your own project against it.
K22What to send with an electric heater quotation requestNine data points that turn an inquiry into a real priceSizingK23How to verify an explosion-proof heater certificateA practical checklist for checking an Ex heater certificate: match the model and Ex marking, confirm the issuing body and scope, and verify the complete assembly before purchase.Ex-Proof ProcurementK24What fluids can a pipeline heater heat?Learn which liquids and gases can be heated in an electric pipeline heater, how to assess compatibility, and what process data to provide for material selection.Pipeline Heater SelectionK25How to set flow velocity in an electric pipeline heaterFlow velocity affects heat transfer, pressure drop and element life. Learn how engineers set a pipeline heater velocity range and what to check for liquids and gases.Pipeline Heater SizingK26How to estimate power for an industrial air heaterEstimate industrial air heater power from airflow and temperature rise. Convert volumetric flow to mass flow, account for air density and losses, and avoid common sizing mistakes.Air Heater SizingK27Why is the outlet temperature from a duct heater uneven?Troubleshoot uneven outlet temperature from a duct heater by checking airflow distribution, element layout, mixing length, sensor placement, staging and fan performance.Duct Heater TroubleshootingK28How to start up a thermal oil heater for the first timeA commissioning-oriented overview of first startup for a thermal oil heater: verify the circuit, establish circulation, remove air and moisture gradually, and prove protective interlocks.Thermal Oil OperationK29Can You Heat Compressed Air with an Electric Heater?Compressed air can be heated electrically when the heater is designed for the pressure, flow, temperature rise, materials and protection requirements. Here is what to check before specifying one.Air Heater SelectionK30Why Does a Pipeline Heater Need Insulation?Pipe insulation affects heat loss, warm-up time and temperature stability. Learn which factors change insulation performance and how to assess losses in a pipeline heating system.Pipeline Heater OperationK31What Happens to a Duct Heater When Airflow Is Too Low?Low airflow can change outlet temperature rise and contribute to local overheating or unstable control. Learn how to identify causes and review duct heater interlocks.Duct Heater OperationK32Why Does a Pipeline Heater Warm Up Slowly?Slow warm-up can be related to supply voltage, flow, heat loss, fluid properties or control settings. Use measured operating data to narrow down the cause.Pipeline Heater TroubleshootingK33304, 316L, 310S or Titanium: Choosing a Heater Sheath Material304, 316L, 310S and titanium suit different conditions. Compare process chemistry, temperature, corrosion exposure and mechanical requirements when selecting an electric heater sheath.Heater Element Materials