HRY5 type tubular electric heater element

1、 Purpose:

HRY5 type tubular electric heater elementUsed for heating hydraulic oil and lubricating oil in hydraulic and lubrication devices, as well as for heating non corrosive gases and liquids.

2、 Characteristics

HRY5 type tubular electric heater elementComposed of a heating core and a protective sheath. The heating core adopts a metal tubular electric heating element as the heat source, and the sheath is made of cold drawn seamless steel pipe or stainless steel pipe. The electric heater is connected to the oil tank body via a flange. The sheath isolates the heating element from the heated oil. When replacing the electric heater, there is no need to drain the oil from the tank. Simply remove the heating element and replace it with a new one, making maintenance convenient. The electric heater has a large contact area with the heated oil, low surface thermal power, no carbon deposition, and the oil will not carbonize due to local high temperature.

3、 Main parameters

Rated voltage: single-phase 220V, three-phase 380V

Surface heating power: ≤ 3w//cm ²

Operating temperature: ≤ 300 ℃

Working medium: Mineral oil

Work pressure: ≤ 0.8Mpa

Notes:

1. The component is allowed to operate under the following conditions:

A. The relative humidity of the air shall not exceed 95%, and there shall be no explosive or corrosive gases (except for explosion-proof heaters).

B. The working voltage should not exceed 1.1 times the rated value, and the casing should be effectively grounded.

C. Insulation resistance ≥ 1M Ω, dielectric strength: 2KV/1min.

2. Electric heating tubes should be properly positioned and fixed, and the effective heating area must be completely immersed in liquid or metal solids. Empty burning is strictly prohibited. When scale or carbon deposits are found on the surface of the pipe body, they should be removed and reused in a timely manner to avoid affecting heat dissipation and shortening the service life.

3. When heating molten metals or solid nitrate, alkali, asphalt, paraffin, etc., the operating voltage should be reduced first, and only after the medium melts can it be raised to the rated voltage.

4. When heating air, the components should be arranged in a cross and even manner to provide good heat dissipation conditions, so that the air flowing through can be fully heated.

5. When heating nitrate, safety measures should be considered to prevent explosion accidents.

6. 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.

7. The components should be stored in a dry place. If the insulation resistance is lower than 1M Ω due to long-term storage, they can be dried in an oven at around 200 ℃ or heated with reduced voltage until the insulation resistance is restored.

4、 HRY type electric heater parameters, specifications, and external dimensions