JPH0678800U - Tube heater - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a tube heater that does not require a detachable space outside the furnace body. [Constitution] Only a heater terminal 4 of a tube heater 2 containing a heating wire 3 is provided penetrating the furnace body 1. The tube heater 2 is provided along the furnace wall so as to be substantially orthogonal to the heater terminal 4. [Effect] Even when adjacent chambers are installed side by side on a line like in a continuous heat treatment furnace, there is no need for a tube heater attachment / detachment space outside the furnace body, which shortens the overall line length and reduces equipment costs. Can be achieved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric heating type tube heater used for heating zones and soaking in steelmaking equipment.

[0002]

[Prior art]

 Conventionally, the electrothermal tube heater used for the heating zone and the soaking zone has conventionally been fastened by the mounting flange 6 with the tube heater 2 penetrating the furnace body 1 as shown in FIG.

[0003]

[Problems to be solved by the device]

 However, in this case, when the tube heater 2 is attached or detached, as shown in FIG. 3, an attachment / detachment space 10 longer than the entire length of the tube heater 2 is required outside the furnace body 1, and this space cannot be provided in terms of equipment. In that case, the tube heater cannot be installed. In the case where adjacent chambers are installed side by side on a line like in a continuous heat treatment furnace, if the tube heater attachment / detachment space is provided between the chambers, the total length of the line becomes longer, and the equipment cost will increase significantly. Yes, it was a huge obstacle.

[0004]

[Means for Solving the Problems]

 The gist of the present invention is a tube heater having a built-in heating wire, wherein only the heater terminal is provided through the furnace body and is installed along the furnace wall so as to be substantially orthogonal to the heater terminal. is there.

[0005]

[Action]

 Since the tube heater of the present invention is substantially orthogonal to the heater terminal and only the heater terminal is inserted from the inside of the furnace body to the outside of the furnace, the tube heater is not required to be attached and detached outside the furnace body.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, heating wires 3 project from both sides of a tube heater 2, and a heater terminal 4 is provided through the furnace body 1. The heater terminal 4 and the heating wire 3 are arranged at positions substantially orthogonal to each other, and are connected by a connecting rod 9.

The tube heater 2 shown in FIG. 2 is arranged so that the heating wire 3 projects from only one side and is substantially orthogonal to the heater terminal 4.

[0009]

[Effect of device]

 In the tube heater of the present invention, the heating wire and the heater terminal are substantially orthogonal to each other, so the heater can be installed simply by penetrating the furnace body from the inside of the furnace and projecting the heater terminal to the outside of the furnace, which requires a vast space outside the furnace. The tube heater can be attached and detached without.

[Brief description of drawings]

FIG. 1 is a sectional view of a tube heater according to an embodiment of the present invention.

FIG. 2 is a sectional view of a tube heater according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view of a conventional tube heater.

[Explanation of symbols]

 1 Furnace Body 2 Tube Heater 3 Heating Wire 4 Heater Terminal 5 Insulator for Fixing Heating Wire 6 Mounting Flange 7 Insulation Plate 8 Fixing Bolt 9 Connecting Rod 10 Attachment / Detachment Space

Claims (1)

[Scope of utility model registration request] 1. A tube heater having a built-in heating wire, wherein only the heater terminal is provided through the furnace body and provided along the furnace wall so as to be substantially orthogonal to the heater terminal.