Product Introduction:

SRY2-220/1 tubular electric heaterComposed of metal tubes, spiral resistance wires, and electrical grade magnesium oxide powder with good thermal conductivity and insulation, it is widely used for heating liquids, air, etc. Common ones include water heaters, ovens, coffee makers, etc.
Material Science:
The general materials for the outer tube include In800, In840304, 316L, 310S, aluminum, copper, low-carbon steel, etc.
Magnesium oxide powder is selected in different specifications according to different usage requirements, including high-temperature powder, medium temperature powder, etc.
Resistance wire is a heating element, and there are generally two types of materials: Ni Cr wire and Fe Cr Al
There are generally two types of lead terminal materials: stainless steel and easy to cut iron.
Sealing materials include epoxy, silicone, glass, etc.
workmanship
SRY2-220/1 tubular electric heaterIt is made by inserting electric heating wires into the outer tube (carbon steel pipe, titanium pipe, stainless steel pipe, copper pipe), filling the gap with magnesium oxide powder with good thermal conductivity and insulation properties, and then shrinking the tube. After heat treatment process (some pipes do not need it), it is processed into various shapes required by the user. It has a simple structure, high thermal efficiency, good mechanical strength, and good adaptability to harsh environments. It can be used for heating various liquids and acid-base salts, and is also suitable for heating and melting low melting point metals.
Scope of use of tubular heater: Suitable for heating air, oil, water, chemical media, hot pressing molds, melting salts, alkalis, and low melting point alloys. It has the characteristics of high thermal efficiency, long service life, high mechanical strength, easy installation, safety and reliability.
Classification of the appearance of tubular heaters: Heating tubes can be divided into straight single ended heating tubes, straight double ended heating tubes, U-shaped heating tubes, W-shaped heating tubes, special-shaped heating tubes, and spiral heating tubes according to their appearance.

1、 Purpose:

SRY2-220/1 tubular electric heaterUsed for heating oil in open or closed oil tanks,SRY4The tubular electric heating component is used to heat flowing or circulating oil. This type of heater has a high surface load and is only suitable for use in oil with good heating effect.

2、 Specifications and technical parameters:

1. Specifications and external dimensionsSee Table 1 and Figure 1-2

2.Allowable error of working voltage: not greater than its rated value1.1Twice. The casing should be effectively grounded.

3.Working environment: Relative humidity not exceeding95%No explosive, flammable, or corrosive gases.

4.Metal tube material:10Number steel.

5.Maximum operating temperature:100℃.

6.SRY2TypeSRY4The work pressure of the type is less than0.6MPa.

7.Fuel tank opening: ≥ φ65.

3、 Usage, maintenance and precautions:

1.Dimensions in the external dimension diagram“B”It must be completely immersed in oil to avoid burning out the components. The heated oil should be non corrosive.

2. When melting solid oils such as asphalt and paraffin, the voltage should be reduced and then increased to the rated voltage after melting. To prevent heat concentration from reducing the lifespan of components.

3. When carbon deposits are found on the surface of the pipe, they must be removed completely before use to avoid reducing efficiency and even burning out components.

4.Components should be stored in a dry place. If the insulation resistance drops below due to long-term storage1At megaohms, it can be200Dry in an oven at around ℃ for several hours (or apply low voltage to the components for several hours) to restore insulation resistance.