KR100541225B1 - A tube heater - Google Patents

Abstract

The present invention relates to a tube heating device that is heated by a flame supplied into a tube-type tube heater, and conventionally the tube heater is locally corroded by the damage of the motor and the initial high temperature by the discharge flame by the exhaust fan. There was a problem.

In order to solve the above problems, the present invention inserts and installs flame conductors having a plurality of holes formed therein in communication with the internal induction paths inserted into the supply side straight pipes, and has a constant space between the supply side straight pipes and the flame guides. ,

The air supply line and the exhaust fan are connected to the drive shaft of the motor at the same time, and the air supply line is formed on the air supply fan side, so that the supply line communicates with the supply side straight pipe. The fan has a feature to solve the above problems by providing a tube heating device having a structure that is configured to communicate with the space portion by configuring the discharge port and the circulation path.

Tube heater, tube heater type heating, tube type heating, factory heating, industrial heating.

Description

Tubular Heating Units {A TUBE HEATER}

1 is a block diagram showing a conventional tube heating apparatus.

2 is an enlarged view illustrating main parts of FIG. 1;

3 is an overall configuration diagram of the present invention.

4 is an enlarged view illustrating main parts of FIG. 3;

5 is an enlarged view illustrating main parts of FIG. 4;

6 is a perspective view showing a flame conductor of the present invention.

7 is a configuration diagram showing another embodiment of the motor drive shaft of the present invention.

<Explanation of symbols for main parts of drawing>

12: supply side straight pipe 20: flame conductor

22: internal route 23: hole

30: drive shaft 33: exhaust fan

       44: supply line 46: outlet

The present invention relates to a tube-type heating device that is heated by a flame supplied into a tubular tube heater, and more particularly, to maximize the length of the flame supplied into the tube heater so that the flame is evenly guided in the tube heater. The present invention relates to a tubular heating device for preventing damage to a part of a part through contact of an inert gas discharged while maximizing efficiency.

In general, in industrial sites or factories, tubular heating devices are installed on the ceiling for heating in winter, and heating is performed.

Such tubular heating is mainly connected to the supply-side straight pipe 12 and the discharge-side straight pipe 12 'as a curved pipe or corrugated pipe 3, as shown in Figures 1 and 2 by connecting in a "U" shape as a whole The tube heater 5 is constituted.

At this time, a burner 6 is connected to the supply side straight pipe 12 and an exhaust fan 8 driven by a motor M is installed at the discharge side straight pipe 12 '.

The tubular heating device indirectly supplies the outside air by the flow rate of the fuel supplied to the burner 6 to combust the fuel of the burner 6 to generate a flame and to blow it simultaneously, and at the same time by the exhaust fan 8 By inhaling the flame in the discharge operation, the flame is guided and discharged along the inside of the tube heater (5).

By the above process, the flame is guided and discharged into the tube heater 5, and the tube heater is heated, and the heating is performed by the heating or the reflector is installed to increase the heating efficiency of heat.

However, the above conventional tube heating apparatus has the following problems.

Even if the flame of the burner 6 is strongly sucked into the exhaust fan 8, the flame is not sufficiently long to be injected into the tube heater 5, so that the flame is evenly guided to the end of the tube heater 5 and thus cannot be heated. There is a problem that the heating efficiency to the area is reduced, and strong heat is locally transmitted to the supply-side straight pipe 12 formed on the burner 6 side, and this part is easily damaged by heat.

The high temperature of the air discharged to the outside by the exhaust fan 8 is transmitted along the motor shaft of the exhaust fan 8 and the motor M driving the exhaust fan 8, causing a failure of the motor M. There is a problem such as damage.

The present invention was created to fundamentally solve all the problems of the prior art, maximizing the length of the flame supplied into the tube heater to be guided to the whole inside the tube heater to maximize the heating efficiency, along the tube heater The inert gas discharged while being guided prevents damage of the straight pipe on the supply side by minimizing the discharge of the inert gas through reincineration while preventing the damage of the straight pipe on the feed side. The purpose is to maximize the heating effect through, and also to prevent the high temperature by the flame guided along the tube heater is transmitted to the motor for driving the exhaust fan to prevent damage to the motor.

The object of the present invention is to install a flame guider having a plurality of holes formed in communication with the internal induction path inserted into the supply side straight pipe is configured to have a constant space between the supply side straight pipe and the flame guide,                         

The air supply line and the exhaust fan are connected to the drive shaft of the motor at the same time, and the air supply line is formed on the air supply fan side, so that the supply line communicates with the supply side straight pipe. The present invention is achieved by a structure in which the fan comprises a discharge port and a circulation path, and the circulation path is installed in communication with the space part.

Hereinafter, a preferred embodiment for achieving the above object of the present invention will be described in detail with reference to the accompanying drawings.

That is, in the tubular heating apparatus of the present invention, as shown in Figs. 3 to 6, the supply-side straight pipe 12 and the discharge-side straight pipe 12 'are connected by a curved pipe or a corrugated pipe 3 to form a "U" as a whole. A tube heater 5 connected in a shape, a burner 6 is connected to the supply straight pipe 2, and an exhaust fan driven by a motor M in the discharge straight pipe 12 '. In the tubular heating apparatus of the structure which provided (8),

The flame guider 20 having a plurality of holes 23 formed therein in communication with the internal induction path 22 is inserted into the straight pipe 12, and the supply pipe between the straight pipe 12 and the flame guide 20. Configured to have a constant space 25 in the

The air supply fan 34 and the exhaust fan 33 are simultaneously connected to and installed on the drive shaft 30 of the motor M in the discharge side straight pipe 12 ', and the suction pipe passage 47 is provided on the air supply fan 34 side. ) And the air supply line 44 so that the supply line 44 is in communication with the supply side straight line 12, and the exhaust fan 34 comprises an outlet 46 and the circulation line 43 The circulation path 43 has a structure installed in communication with the space 25.

The drive shaft 30 of the motor M may be implemented differently as shown in FIG. 7, which divides the drive shaft 30 in the longitudinal direction to correspond to each other, and corresponds to the divided shaft portions 31 and 31 ′. ), And may be configured to be integrally rotatable by connecting them with the mutual shaft pins (32).

In addition, reference numeral 21 denotes a spacing holder provided at both ends of the flame conductor 20 to maintain a constant space 25 formed between the supply side straight pipe 12 and the flame conductor 20. .

The operation and action of the present invention will be described.

First, the present invention is to supply the fuel and air to the burner 16 to achieve heating, so that the injection is performed while generating a flame.

At this time, the air supply fan 34 and the exhaust fan 33 are driven by the driving of the motor M.

In addition, the air supply fan 34 forcibly sucks outside air through the suction pipe line 47 to supply fresh air to the supply side straight pipe 12 through the supply pipe 44.

The air is burned by mixing with the fuel supplied from the burner 16.

At this time, the flame generated during the combustion is supplied to the flame while forming a long flame in the supply-side straight pipe 12 through the flame guider (20).

This flame is heated again while going through the discharge process through the discharge-side straight pipe (12 ') through the curved pipe or corrugated pipe (3).

At this time, the exhaust fan 33 installed in the discharge side straight pipe 12 'is a flame movement to the discharge side straight pipe 12' through the supply side straight pipe 12, curved pipe or corrugated pipe (3). Forced.

This causes the exhaust fan 33 to exhaust in the state where the exhaust fan 33 is installed in the discharge-side straight tube 12 ', thereby forcibly inducing the movement of the flame so that the flame is fed to the supply-side straight tube 12, the curved tube or the corrugated tube ( 3) and to move quickly to the discharge side straight pipe 12 'to increase the heating efficiency.

The air forcibly exhausted by the exhaust fan 33 is an exhaust flame including an inert gas, and its heat is relatively low compared to the initial temperature supplied from the supply-side straight pipe 12.

This is because the temperature of the flame gradually drops as the flame moves to the supply side straight tube 12, the curved tube or corrugated tube 3, and the discharge side straight tube 12 '.

The discharge flame accompanied with such an inert gas is discharged to the outside through the discharge port 46 while the temperature of the discharge flame is maintained at a lower temperature than the initial stage, and a part of the discharge flame is again passed through the hand passage 43. 25) the supply is made.

At this time, the discharge flame is in contact with the supply side straight pipe 12 and the flame guide 20 in the space 25.

The contact flame may be damaged by the high temperature generated in the initial state of the flame by lowering the temperature of the straight pipe 12 and the flame guide 20 relatively by the discharge flame maintaining a relatively low temperature through such contact. It is possible to prevent the supply side straight pipe 12 and the flame guide 20 from being damaged.

And since the discharge flame is accompanied by an inert gas as described above, it is possible to promote the reburn through its resupply to minimize the generation of soot.

In addition, the supply of the discharge flame with the inert gas is to increase the volume of the flame to move relatively to the supply side straight pipe 12, it is possible to increase the speed of the moving flame.

For this reason, it is possible to induce a rapid movement from the supply side straight tube 12 to the discharge side straight tube 12 'to maintain the high temperature in the end, thereby maximizing the heating efficiency as a whole.

In addition, the flame injected to the burner 16 is supplied to the flame is sprayed through the flame inductor 20 to maximize the heating efficiency.

This is the role that the flame sprayed from the burner 16 is guided to be sprayed longer while being guided through the inner guide hole 22 having the diameter of the sandwich between the flame guide 20 installed in front of the burner 16 As a result, the inert gas is reburned through contact with the discharge flame.

In addition, as described above, the exhaust fan 33 is directly exposed to the heat while exhausting the high temperature heat.

The drive shaft 30 is transmitted to this heat, but since the drive shaft 3 is connected to the motor M again, there is a risk of failure or damage of the motor M. At this time, the drive shaft 30 is an air supply fan ( Since the drive 34 is driven, the transfer temperature of the heat moving through the drive shaft 3 is lowered by the fresh air that is forcedly sucked by the air supply fan 34.

For this reason, the heat transferred from the exhaust fan 33 through the drive shaft 30 is transferred to the motor M in the lowered state, thereby preventing damage and burnout of the motor M.

In this case, the drive shaft 30 is divided into the longitudinal direction as shown in FIG. 7 to form split shaft portions 31 and 31 'corresponding to each other to form a coupling structure connected to the shaft pin 32 to form the drive shaft. It is possible to simultaneously lower the heat transfer through the air supply fan 34 to block the heat transferred to the 30.

As described in detail above, the tube heating apparatus of the present invention drives the exhaust fan and the air supply fan for supplying air to the burner simultaneously while forcibly sucking the flame of the tube heater by a single motor, Since the flame conductor is formed in the front to form a long flame, the flame is guided to the whole of the tube heater, thereby maximizing the heating efficiency as well as bringing a part of the discharge flame discharged through the tube heater into contact with the flame conductor and the tube heater. Therefore, it is possible to prevent the damage of the tube heater which may be damaged by the high temperature heat generated at the beginning, and to reduce the emission of inert gas through recombustion, and the high temperature discharge flame is transferred from the exhaust fan to the motor through the drive shaft. By effectively blocking the transmission to the motor has the effect of preventing damage to the high temperature of the motor Wu is a useful invention.

Claims (3)

The supply side straight tube 2 and the discharge side straight tube 2 'are connected to each other by a curved tube or corrugated tube 3 to form a tube heater 5 connected in a "U" shape as a whole. In the tubular heating device having a structure in which a burner 6 is connected to the exhaust pipe, and an exhaust fan 8 driven by a motor M is installed in the discharge straight pipe 2 '. The flame guider 20 having a plurality of holes 23 formed therein in communication with the internal induction path 22 is inserted into the straight pipe 12, and the supply pipe between the straight pipe 12 and the flame guide 20. Configured to have a constant space 25 in the The air supply fan 34 and the exhaust fan 33 are simultaneously connected to and installed on the drive shaft 30 of the motor M in the discharge side straight pipe 12 ', and the suction pipe passage 47 is provided on the air supply fan 34 side. ) And the air supply line 44 so that the supply line 44 is in communication with the supply side straight line 12, and the exhaust fan 34 comprises an outlet 46 and the circulation line 43 The circulation path (43) is a tubular heating, characterized in that made of a structure installed in communication with the space (25). The method of claim 1, A spacing retainer 21 is provided at both ends of the flame conductor 20 so as to maintain a constant spacing of the space 25 formed between the supply side straight pipe 12 and the flame conductor 20. Tubular heating system. The method of claim 1, The drive shaft 30 of the motor (M) is divided into the longitudinal direction to form a split shaft portion 31 (31 ') corresponding to each other, it is characterized in that it is made to rotate integrally by connecting the mutual axis pins (32) Tubular heating system.

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