KR20110115075A

KR20110115075A - Field optimization furnace with induction method of high-temperature heat convection

Info

Publication number: KR20110115075A
Application number: KR1020110018057A
Authority: KR
Inventors: 박옥실
Original assignee: 박옥실
Priority date: 2011-02-28
Filing date: 2011-02-28
Publication date: 2011-10-20

Abstract

The present invention relates to an on-site optimized heat treatment furnace of a high temperature hot air convection induction method, the on-site optimized heat treatment furnace of a high temperature hot air convection induction method according to the invention of the plurality of unit assembly panel to be provided with a heating space for accommodating the object A heating furnace made of assembly, a plurality of heating burners provided at predetermined intervals along a longitudinal direction of the heating furnace at predetermined positions on the left and right sides of the heating furnace, and at least one or more provided in the upper direction of the heating furnace The purge damper and the hot air inside the heating space can be uniformly heated by the heating burner heated by the heating burner by the convection caused by the upper heating-lower exhaust to the outside. A plurality of discharge pipes for discharging are spaced apart at regular intervals along the length direction at the lower left and right sides of the heating furnace predetermined position It characterized in that the W provided.

Description

Field optimization furnace with induction method of high-temperature heat convection

The present invention relates to an on-site optimized heat treatment furnace of a high temperature hot air convection induction method, and more specifically, it can be installed in a place where a large to-be-processed object is to be heat-treated to uniformly heat and heat-treat a large to-be-processed object. The present invention relates to an on-site optimized heat treatment furnace having a high temperature hot air convection induction.

In general, heat treatment of metal is to change or improve various properties of metal materials by appropriately controlling heating and cooling, and various methods such as quenching, tempering, and annealing Heat treatment technology.

This heat treatment is divided into a heating process and a cooling process. In the heating process, the transformation point temperature according to the steel component is a reference. For example, in the case of quenching, heating is performed at a higher temperature than the transformation point, and in tempering and annealing, heating is required so as not to reach the transformation point.

In other words, in a material in which a phase change occurs as the temperature rises and falls, a cooling is performed slowly over a sufficient time to complete all the changes as shown in the state diagram to obtain a stable equilibrium state.

Then, it is cooled slowly in a high temperature state to give time that can be cooled while holding the equilibrium at each temperature due to diffusion.

In addition, deformation, deformation, or lattice defects occur due to processing, casting, irradiation, etc., and the hardened crystal solid has a temperature at which the atoms of the main component in it are sufficiently diffused, that is, recrystallized. A suitable time is heated above temperature, and the objective is achieved.

Therefore, it is necessary to heat with good precision according to the purpose of heat processing. In addition, in order to suppress the quality deviation in the same member, the to-be-processed object should be heated uniformly.

However, in the conventional heat treatment furnace, the heat treatment of the workpiece is performed by the lower heating-upper exhaust method, so that the behavior of the hot heat rises at a higher speed than the heat exchange with the workpiece, so that the hot heat is removed from the top of the heat treatment furnace. There is a problem that the thermal efficiency is lowered due to the temperature deviation of the upper and lower portions of the heat treatment furnace by staying or exhausting.

In addition, the temperature difference between the upper and lower portions of the heat treatment furnace is generated, there is a problem that the workpiece is not uniformly heat treated.

In addition, there is a problem in that productivity is reduced due to poor workability by dividing the large to-be-processed object by heat-treating the large to-be-processed object without temperature deviation and then reassembling or moving to a position where the heat treatment furnace is installed. .

The present invention is to solve the problems of the conventional heat treatment furnace as described above, in order to heat-treat the large workpieces at a uniform temperature without dividing or moving the large workpieces, uniform temperature without temperature deviation It is an object of the present invention to provide an on-site optimized heat treatment furnace of a high temperature hot air convection induction method that can be heat treated in a furnace.

According to a preferred embodiment of the present invention, a heating furnace composed of assembly of a plurality of unit assembly panels so that a heating space for accommodating a workpiece is provided, and a lengthwise direction of the heating furnace at predetermined positions on the left and right sides of the heating furnace. A plurality of heating burners provided at a predetermined interval apart from each other, at least one purge damper provided along the longitudinal direction of the heating furnace, and heated air heated by the heating burners in the heating space A plurality of discharge pipes for discharging high temperature heaters inside the heating space to the outside so as to uniformly heat them by convection caused by the upper heating-lower exhaust is fixed along the length direction at predetermined positions below the left and right sides of the heating furnace. It provides an on-site optimized heat treatment furnace of the hot air convection induction method, characterized in that provided spaced apart.

In the predetermined position of the discharge pipe is characterized in that the exhaust control damper for controlling the discharge amount of the high temperature heat inside the heating space is discharged to the outside to adjust the temperature inside the heating furnace.

Discharge pipes provided on the left and right sides of the heating furnace are characterized in that they are arranged alternately.

The heating burner is located above the discharge pipe, the crater direction of the heating burner is characterized in that disposed in a diagonal direction with respect to the discharge pipe.

According to the on-site optimized heat treatment furnace of the high temperature hot air convection induction method according to an embodiment of the present invention, in order to heat-treat the large-sized workpieces at a uniform temperature, the large-sized workpieces are not divided and the temperature is uniform without a temperature deviation. There is an effect that can be heat treated with.

1 is a plan view of an on-site optimized heat treatment furnace of a high temperature hot air convection induction method according to an embodiment of the present invention.
Figure 2 is a side cross-sectional view schematically showing an on-site optimized heat treatment furnace of the hot air convection induction method according to an embodiment of the present invention.
3 is a front view of an on-site optimized heat treatment furnace of a high temperature hot air convection induction method according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

1 is a plan view of an on-site optimized heat treatment furnace of a high temperature hot air convection induction method according to an embodiment of the present invention, Figure 2 is a schematic view showing a site optimized heat treatment of a high temperature hot air convection induction method according to an embodiment of the present invention 3 is a front view of a site optimized heat treatment furnace of a high temperature hot air convection induction method according to an embodiment of the present invention.

1 to 3, the on-site optimized heat treatment furnace of the hot air convection induction method according to an embodiment of the present invention, the heating furnace 100, the heating burner 110, the purge damper 120, the discharge pipe 130 Is done.

The heating furnace 100 has a tunnel-shaped heating space 102 for accommodating the object P therein. The heating furnace 100 is formed by bolting a unit assembly panel formed by combining a fireproof member and a heat insulating material on one side of a steel plate having a rectangular plate shape.

In addition, one side of the heating furnace 100 is hinged to the side wall of the heating furnace 100 to open and close the opening (not shown) formed to accommodate the object (P) in the heating space (102). It is preferable that 104 is provided.

The heating burners 110 are spaced apart at regular intervals along the longitudinal direction of the heating furnace 100 at predetermined positions on the left and right surfaces of the heating furnace 100, and the workpieces P accommodated in the heating space 102. ) Is heated inside the heating space 102.

Here, the heating burner 110 is preferably located above the discharge pipe 130 to be described later.

This, the burner direction of the heating burner 110 is preferably disposed in a diagonal direction with respect to the discharge pipe 130 to be described later.

The purge damper 120 is provided at least one in the longitudinal direction in the upper portion of the heating furnace 100, discharge the unburned gas existing in the heating furnace 100 before the ignition of the heating burner 110 to the outside during ignition The explosion gas is prevented from occurring inside the furnace 100 by the combustion gas.

The discharge pipe 130 is provided at predetermined distances along the length direction at the lower left and right surfaces of the furnace 100, and the heat heated by the heating burner 110 is accommodated in the heating space 102. The heated heat inside the heating space 102 is discharged to the outside to uniformly heat the water (P).

That is, referring to FIG. 3, since the heat heated from the top of the heating space 102 is discharged to the outside through the discharge pipe 130 provided at the bottom, the inside of the heating space 102 is formed by the upper heating-lower exhaust method. Convection occurs to uniform the upper and lower temperatures of the heating space 102 to uniformly heat the upper and lower portions of the workpiece P without temperature deviation.

At this time, it is preferable that a control valve 132 is provided at a predetermined position inside the discharge pipe 130 to adjust the amount of the heated high temperature heat inside the heating space 102 to the outside, which is instantaneously a large amount of high temperature. The heat is not discharged to the outside to prevent the temperature inside the heating furnace 100 from falling sharply.

In addition, it is preferable that the discharge pipe 130 is alternately disposed on the left and right sides of the heating furnace 100 so that convection is uniformly generated in the entire tunnel-shaped heating furnace 100.

Hereinafter, the operation of the on-site optimized heat treatment furnace of the high temperature hot air convection induction system configured as described above will be described.

First, the object (P) to be heat treated is transferred to the heating space 102 inside the heating furnace 100, and when the heating burner 110 is ignited, the inside of the heating space 102 is heated and heated high temperature. The hot air is discharged through the discharge pipe 130 provided to be spaced apart at predetermined intervals along the length direction at the lower left and right sides of the heating furnace 100 so that convection occurs in the heating space 102.

Therefore, the temperature difference between the upper and lower portions of the heating space 102 is generated by allowing the high temperature heaters heated from the upper portion of the heating space 102 to be discharged to the outside through the discharge pipe 130 at predetermined positions on the lower left and right sides of the heating furnace 100. There is an effect that can be heated uniformly as a whole to be processed (P).

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art may variously modify and change the present invention without departing from the spirit of the invention as set forth in the claims below. It will be appreciated.

100: heating furnace
102: heating space
104: cover
110: heating burner
120: fuzzy damper
130: discharge pipe
132: regulating valve
P: To-be-processed object

Claims

A heating furnace configured to assemble a plurality of unit assembly panels so that a heating space for accommodating the object is provided;
A plurality of heating burners provided at predetermined positions spaced along a longitudinal direction of the heating furnace at predetermined positions on the left and right surfaces of the heating furnace;
A purge damper provided at least one along the longitudinal direction of the heating furnace; And,
A plurality of hot air discharged to the outside to allow the heated air heated by the heating burner to uniformly heat the workpiece contained in the heating space by the convection phenomenon by the upper heating-lower exhaust. High temperature hot air convection induction optimization site heat treatment furnace characterized in that the discharge pipe is provided at predetermined positions spaced apart in the longitudinal direction at the lower left and right sides of the heating furnace.

The method according to claim 1,
The site of the high temperature hot air convection induction method is provided at the predetermined position of the discharge pipe is provided with an exhaust control damper for controlling the discharge of the high temperature hot air inside the heating space to the outside to control the temperature inside the heating furnace. Optimization heat treatment furnace.

The method according to claim 1,
Discharge pipes provided on the left and right sides of the heating furnace are alternately arranged on-site optimized heat treatment furnace of the high temperature hot air convection induction method.

The method according to claim 3,
The heating burner is located above the discharge pipe, and the crater direction of the heating burner is disposed in a diagonal direction with respect to the discharge pipe, hot heat convection induction method of the on-site optimized heat treatment furnace.