Sealing system of radiation chamber furnace tube of tube-type heating furnace

Abstract

The invention relates to a sealing system of a radiation chamber furnace tube of a tube-type heating furnace, and belongs to the technical field of tube-type heating furnace sealing. The sealing system comprises a furnace top sliding plate arranged around the furnace tube, wherein the furnace top sliding plate is used for slip connection with a furnace top; a sealing element surrounding the furnace tube is arranged on the furnace top sliding plate; a heat preservation sleeve is arranged above the sealing element around the furnace tube; a sealing box is arranged outside the sealing element andthe heat preservation sleeve; the heat preservation sleeve extends out from the sealing box; the sealing element comprises a sealing base; the bottom of the sealing base is connected to the furnace top sliding plate; a taper hole is formed in the sealing base in a longitudinal direction and penetrates the sealing base; a taper sealing element is arranged in the taper hole and is matched with thetaper hole; the upper end of the taper hole has a big opening; the taper sealing element is set as split type taper sealing elements arranged around the furnace tube; the split type sealing elements are not fixedly connected to each other; a pressure plate is arranged above the sealing base; and the heat preservation sleeve is arranged above the pressure plate. The radiation chamber furnace tube sealing system has a simple structure and a good sealing effect.

Description

technical field [0001] The invention relates to a furnace tube sealing system for a radiation chamber of a tubular heating furnace, belonging to the technical field of sealing of the tubular heating furnace. Background technique [0002] Industrial furnaces are high-temperature reaction equipment and high-temperature heating equipment in the production process. A combustion chamber surrounded by a refractory material that heats a substance, solid or fluid, using the heat generated by the combustion of fuel. There are various furnaces in industry, such as metallurgical furnaces, heat treatment furnaces, kilns, incinerators and steam boilers. [0003] Tube heating furnace is a type of industrial furnace. It is a process heating furnace used in petroleum refining, petrochemical, chemical and chemical fiber industries. It has characteristics that other industrial furnaces do not have: [0004] 1. The heated medium flows in the tube, so it is limited to heating gas or liquid. ...

AI Technical Summary

Problems solved by technology

[0004] 1. The heated medium flows in the tube, so it is limited to heating gas or liquid

Moreover, these gases or liquids are usually flammable and explosive hydrocarbon media, which are more dangerous than boiler heating water or steam, and the operating conditions are harsh.

[0005] 2. The heating method is direct fire type

[0006] 3. Only burn liquid or gaseous fuel

Although this structure can solve the problem of furnace tube sealing, the sealing effect is good, but the construction procedure is complicated, the structure is huge, and it occupies a certain maintenance space, and it is difficult to find problems with the furnace tube

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