Tube furnace inspection and tightening

Tube furnace inspection and tightening

Due to transportation and other reasons, the tightening of the screws of the furnace body should be checked to confirm that it is correct.

Electrical installation of tube furnace

Power supply configuration: 220V (380V). According to the user's electric control cabinet configuration, the power should be greater than 4Kw.

The thermocouple is inserted into the furnace with a depth of 25mm and is connected with the temperature control instrument with the compensation wire of the N graduation number. Note: The quartz tube should be installed first and then the thermocouple. The thermocouple should not be in contact with the quartz tube. The electric furnace and the control cabinet are grounded as a whole, and the grounding resistance of the grounding wire should be less than 4Ω.

Resistance wire connection mode: two wires in parallel, power supply: single-phase 220V (or 380V).

Installation of tube furnace body

The electric furnace can be placed on the workbench to suit the physiological operating height of the human body, and the effective load of the workbench should be greater than 200KG.

Disadvantages of tube furnace:

(1) There is still a certain limit to the applicability of heavy raw materials

When cracking heavy raw materials, because the heavy raw materials are prone to coking, it is necessary to shorten the operation cycle, reduce the cracking depth, and often light coke, which shortens the effective production time throughout the year, and also affects the life of the cracking furnace and furnace tubes. As a result of reducing the cracking depth, the utilization rate of raw materials is not high, the quantity of low-value products such as heavy raw oil is large, and the cost of public works is also increased.

(2) According to the process requirements of high temperature, short residence time and low hydrocarbon partial pressure, the surface thermal strength of the furnace tube is bound to increase, which requires oil-resistant high-temperature alloy pipe and cast pipe technology.

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