JPH05296442A - Air supply device for burning apparatus - Google Patents

Abstract

PURPOSE:To improve serviceability by solely replacing a blower itself to be used for a domestic hot water supply or room heater. CONSTITUTION:The air supply device for a burning apparatus comprises a blower 30 for supplying burning air to a burner in a case 33 having an opening, an air supply box 31 attached to a fan case 30A of the blower 30 and having an air intake port, and an air supply duct 32 t6 be detachably inserted into the opening of the case 33 and the intake port of the box 32. The duct 32 has a flangelike contact surface on an outer periphery of an end face to become a contact surface of the intake port with the opening of the case 33, and is inserted into the box 31. An outlet end of the air of the case 30A is detachably inserted into a blower case 29 opened at an upper surface. The duct 32 detachably fixed to a contact surface of the flange of the end face of the duct 32 through the case 33 is provided, and only the blower 30 can be attached and detached.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure that contributes to the serviceability of combustion equipment used for air supply and heating equipment.

[0002]

2. Description of the Related Art A conventional oil water heater will be described with reference to FIG. In FIG. 2, reference numeral 1 denotes a burner head, the periphery of which is closed by a U-shaped burner head case 2 and an opening surface on the front side of the U-shape by a carburetor 3 having a heater. A vaporizer lid 4 is attached to the vaporizer 3 to seal vaporized gas, and a nozzle 5 having an opening above the vaporizer lid 4 for ejecting fuel to the vaporizer 3 is provided. The nozzle 5 is fixed to a burner case 6 that surrounds the outer periphery of the burner head case 2, and oil sent from an electromagnetic pump 7 for oil supply is injected into the vaporizer 3 through an oil supply pipe 8. ing. Reference numeral 9 denotes a blower case having a partially opened upper surface, which is attached to the burner case 6. A blower 10 has a spiral casing for supplying combustion air, and is attached to the blower case 9. An air supply box 11 is fixed to the blower 10. An air supply duct 12 is fixed to the air supply box 11. Reference numeral 13 denotes a mixing chamber for supplying the vaporized gas in the vaporizer 3 to the burner head 1, which is mounted below the vaporizer 3 and the burner head 1. 14
An exhaust pipe 15 for exhausting combustion exhaust gas is provided above the burner case 6 with a heat exchanger provided above the burner case 6. Reference numeral 16 denotes a box-shaped case of the main body, and the air supply duct 12 and the exhaust pipe 15 project above the upper surface of the box-shaped case 16 of the main body and are connected to an exhaust pipe.

[0003]

However, there are the following problems in the structure of the ventilation passage of the conventional combustion equipment as described above. That is, even when the blower block including the air supply duct 12, the air supply box 11 and the blower 10 is assembled and fixed at the time of production and assembly, the blower block is fixed to the burner block in advance, and then the case 16 of the main body is fixed. Built in. However, in the market, the air supply duct 12 is the case 1 of the main body.
6 Since it protrudes from the upper surface, only the blower 10 cannot be removed from the case 16. For example, the blower 1
Burner block or heat exchanger 1 when only 0 is removed
It is necessary to remove all parts such as 4 and the serviceability is extremely poor.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to easily remove a blower to improve serviceability.

[0005]

To achieve the above object, the present invention provides a case having an opening, a blower for supplying combustion air to a burner in the case, a fan case, and a fan attached to the fan case. The air supply duct includes an air supply box having an air intake, an air supply duct that is detachably inserted into the opening of the case and the air intake of the air supply box, and a blower case that guides air to the burner. Is provided with a flange-shaped abutting surface on the outer periphery of the case opening and the end surface that is the abutment surface of the air intake, the wind outlet end of the fan case is detachably inserted into the inlet of the blower case, and An air supply duct is provided in which the contact surface of the flange of the air supply duct is detachably fixed via a case.

[0006]

In the air supply device for the combustor of the present invention, the air supply duct is removed from the air supply box by removing the detachable fixing portion for fixing the air supply duct through the case when the blower is removed. Since it can be removed, the blower can be installed and removed independently.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG.

FIG. 1 is a view showing a mounting structure of a blower with a case on the front surface of the combustor being removed. Reference numeral 21 is a burner head, the periphery of which is closed by a U-shaped burner head case 22 and a U-shaped opening surface of a carburetor 23 having a heater. A vaporizer lid 24 is attached to the vaporizer 23 to seal the vaporized gas, and a nozzle 25 having an opening above the vaporizer lid 24 for ejecting fuel into the vaporizer 23 is provided. The nozzle 25 is fixed to a burner case 26 that surrounds the outer circumference of the burner head case 22, and jets the fuel sent from the oil supply electromagnetic pump 27 into the vaporizer 23 through the oil feed pipe 28. There is. 29 is a blower case for guiding the air to the burner head 21 having an opening on the upper surface, and is attached integrally to the burner case 26. 30 is a blower for supplying combustion air
A is a fan case of the blower 30. Fan case 3
The tip of the 0A air outlet is inserted into the opening on the upper surface of the blower case 29. Reference numeral 31 is an air supply box having an opening on the upper surface and is fixed to the fan case 30A. Reference numeral 32 is a passage for sucking combustion air from the outside of the case 33, and is an air supply duct having a flange-like portion that bulges like beads in the vicinity of both ends in the middle of the pipe that connects the air supply box 31 to the opening on the upper surface of the air supply box 31. It is inserted through the rubber packing 34. A pressing lid 35 holds the flange portion of the air supply duct 32 from above and fixes it to the case 33.

Reference numeral 36 denotes a mixing chamber for supplying the vaporized gas in the vaporizer 23 to the burner head 21, which is mounted below the vaporizer 23 and the burner head 21. A heat exchanger 37 is provided above the burner case 26, and an exhaust pipe 38 for discharging combustion exhaust gas is provided above the heat exchanger. The air supply duct 3
2 and the exhaust pipe 38 project from the upper surface of the case 33 and are connected to an exhaust pipe (not shown) separately provided.

In the above structure, when the blower 30 is removed, the air supply duct 32 can be easily removed upward from the air supply box 31 by removing the pressing lid 35 fixed to the upper surface of the case 33. Thus, the outlet end of the fan case 30A is moved slightly upward from the blower case 29 to disconnect the blower case 30 and the air supply box 31 as a whole, so that the entire blower 30 can be easily removed.

[0011]

As described above, according to the present invention, the air supply duct which is removably inserted has the flange-shaped contact surface on the outer periphery which is the contact surface of the case opening portion and the air supply inlet of the air supply box. Installed in the provided air supply box, further insert the air outlet tip of the fan case into the blower case with the upper surface opened, and fix the flange-shaped contact surface of the end surface of the air supply duct through the case to form the air supply duct. By removing the fixing parts of and, only the blower can be easily attached and removed.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a blower mounting structure for an oil water heater according to an embodiment of the present invention.

[Figure 2] Blower mounting configuration diagram of a conventional oil water heater

[Explanation of symbols]

 26 Burner Case 29 Blower Case 30 Blower 30A Fan Case 31 Air Supply Box 32 Air Supply Duct 33 Case 34 Rubber Packing 35 Press Cover 37 Heat Exchanger 38 Exhaust Pipe

Claims (1)

[Claims] 1. A case having an opening, a blower for supplying combustion air to a burner in the case, a fan case, an air supply box having an air supply inlet attached to the fan case, and an opening of the case. An air supply duct that is removably inserted into the air supply inlet of the air supply box and a blower case that guides air to the burner are provided, and the air supply duct has the case opening portion and the contact surface of the air supply inlet. A contact surface is provided on the outer circumference of the end portion of the fan case, the air outlet tip of the fan case is detachably inserted into the inlet of the blower case, and the contact surface of the air supply duct is
An air supply device for a combustor having an air supply duct detachably fixed via the case.