JPS6143182Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improved structure of a combustion device using oil or gas, and an embodiment of the oil hot air heater will be described below with reference to the drawings.

Reference numeral 1 denotes an exterior case, in which a liquid fuel tank 2 is detachably installed on the right side of the inside, and a combustion section 4 is provided on the left side, and a hot air outlet 5 on the front is located behind the combustion section 4.
A hot air fan 6 is provided opposite to.

7 is a burner motor 8 and a rotating shaft 9 of the motor 8
The air supply case has an intake fan 10 attached thereto, which is fixed to a mounting plate 12 of the exterior case by support legs 11, and an intake pipe 14 protruding from the exterior case 1 at the intake port 13.
is attached, and combustion air is taken in from outside the exterior casing 1 by means of an intake fan 10. The air supply housing 8 is composed of a deep-drawn bowl-shaped lower body 7a and an inverted dish-shaped upper body 7b that closes the upper end opening of the lower body, and the respective collar pieces 14a and 14b are overlapped and planted from the collar piece 14a of the lower body 7a. It is constructed by inserting a through hole provided in the collar piece 14b of the upper body 7b into the mounting rod 15, and screwing the nut 16 onto the mounting rod 15 from above.

Reference numeral 17 denotes a burner attached to the upper surface of the air supply case 7 via a heat insulating plate 18, which includes a lower body 17a equipped with a vaporizing heater 19, a pair of upper and lower burner heads 21, 21 forming a flame opening 20, and an air permeable heat equalizing plate 22. The upper body 17b is provided with the upper body 17b.

23 is a rotary atomizer attached to the rotating shaft 9 of the motor 8, which is inserted into the burner 17 through an opening provided in the air supply housing 7 and the lower body 17a of the burner 17, and includes a cone-shaped rotating body 23a, The scattering plate 23b and the stirring blade 23c are attached to the rotating shaft 9 in this order. Reference numeral 24 denotes a fuel supply pipe that penetrates through the air supply housing 7 and has its tip opposed to the rotating body 23a of the atomizer with a small gap, and communicates with the oil storage tank 3 via a solenoid valve, a solenoid pump 25, etc. has been done. Reference numeral 26 denotes a horizontal heat shield plate which is fixed to the air supply case 7 with screws 27 through the heat insulating plate 18, and is cut and raised in several places, leaving one inner side open, and openings are provided in the standing wall 28 and the outside of this standing wall. There is. Reference numeral 30 denotes a combustion cylinder surrounding the burner 17, whose lower end is regulated by the vertical wall 28, placed on the heat shield plate 26, and fixed to the vertical wall 28 with screws 31.

Therefore, the opening on the outside of the vertical wall 28 is located outside the combustion tube 30 and serves as a vent 29. This vent 29
Air flow is passed by convection from the interior of the exterior housing 1 into the air passage 32, thereby preventing a rise in temperature within the exterior housing 1 and preventing heat deterioration of the fuel tank portion and other components.

That is, the combustion tube 30 is located within the air passage 32,
A warm air fan 6 is located at the entrance of the air passage 32, and a discharge port 5 is located at the outlet, and the vent 29 of the heat shield plate 26 serves as an opening that communicates the air passage 32 with the lower inside of the exterior casing 1. 33, 33... are heat shield plates 26 around the burner 17
The lower body 7 of the air supply housing 7
The air ports 33', 33', . . . corresponding to the mounting rods 15 to which the upper body 7b is attached are made large in diameter so that a tightening jig can be inserted therein.

Therefore, the air supply housing 7 can be assembled or disassembled by inserting a jig into the large diameter air holes 33', 33' and screwing the nut 16 onto the mounting rod 15. In addition, 35 is an ignition electrode, 36 is an operation part, 37 is a combustion flame viewing window, and 38
is a seismic sensor.

When the liquid fuel is supplied from the supply pipe 24 onto the rotating body 23a of the atomizer, the scattering plate 23
b scatters in the outer circumferential direction. Since the burner 17 is heated by the vaporization heater 19, the scattered fuel is instantly vaporized. On the other hand, intake fan 10
The air sucked in is introduced into the burner 17 through the opening and mixed with the vaporized gas by the stirring blades 23c, and the mixture passes through the heat equalizing plate 22 and passes through the flame ports 20, 2.
Injection combustion starts from 0...

Since the combustion tube 30 is heated and the combustion exhaust gas is discharged into the air passage 32, the air sent from the hot air fan 6 undergoes heat exchange and is discharged from the discharge port 5 together with the exhaust gas to perform heating.

Since the air entering the exterior housing 1 from an air port 34 provided at the lower rear surface of the exterior housing flows toward the air passage 32 via the vent 29, the interior of the exterior housing 1 is not heated and heating of the fuel tank, etc. can be prevented.

As described above, the present invention locates a part of the secondary air port provided on the heat shield plate above the air supply case, directly above the mounting rod for assembling the lower body, and places the part of the secondary air port provided on the heat shield plate in a position that allows the tightening jig to be inserted. The large size makes it extremely easy to assemble and disassemble the fan case.

[Brief explanation of the drawing]

The drawings are all of the present invention: Fig. 1 is a partially cutaway front view, Fig. 2 is a vertical sectional view, Fig. 3 is an enlarged sectional view of the main part, Fig. 4 is an exploded perspective view of the main part, and Fig. 5 is a partially cutaway front view. The figure is a cross-sectional view of the main part. 7...Air supply case, 17...Burner, 26...Horizontal heat shield plate, 33, 33'...Secondary air port.

Claims (1)

[Scope of utility model registration request] A burner and a horizontal heat shield plate for blocking radiant heat from the burner are mounted on an air supply case constructed by aligning the open ends of the upper body and the lower body and tightening the appropriate places with mounting rods, and the area around the burner is A secondary air port is drilled in the heat shield plate located at the heat shield plate, and a part of the secondary air port is drilled directly above the mounting rod and is large enough to allow insertion of a tightening jig. Combustion device.