JP3619639B2 - Combustion equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combustion apparatus such as a heat source device for hot water heating, and more particularly to a mounting structure of a heating unit configured by integrally assembling a heat exchanger, a burner unit, a burner blower, and the like included in the combustion apparatus. is there.
[0002]
[Prior art]
FIG. 5 is a diagram showing the internal structure of a heat source device as a combustion device, where (a) is a front view and (b) is a plan view.
[0003]
First, the internal structure of the heat source apparatus will be described with reference to FIG. 5. A heat exchanger 3 having an exhaust box 2 connected to the front end and a combustion chamber 4 formed at the rear, and the heat generated by vaporizing and burning liquid fuel. A burner unit 5 for heating the exchanger 3 and a burner blower 6 for supplying combustion air to the burner unit 5 are integrally assembled to form a heating unit 30, which is fixed to the upper center in the exterior body 1. Has been. Although not shown, the burner unit 5 is configured by integrally accommodating a liquid fuel spray nozzle, an ignition plug for ignition, a frame rod, and the like inside a hollow cylinder (burner tube).
[0004]
A sister tank 10 is provided in parallel with the heating unit for temporarily storing hot water from the heat exchanger 3. On the other hand, a large fuel tank 13 for storing liquid fuel for combustion is housed on the base 12 at the bottom, and the upper part of the tank sucks the liquid fuel in the tank and burners 5. Is connected to a liquid fuel spray nozzle in the burner unit 5 (not shown) via an oil feed pipe 15 connected thereto. In addition, an external radiator (not shown) such as a floor heating panel or a fan convector is passed through the circulation pipe 23 with hot water heat-exchanged by the heat exchanger 3 on one side of the gantry 12 below the sister tank 10. A circulation pump 7 is installed for circulation and supply.
[0005]
In the above configuration, when the combustion operation is started, first, the burner blower 6 is operated, and the combustion air drawn from outside the apparatus is supplied into the burner tube of the burner unit 5 as primary air. Here, when the electromagnetic pump 14 is operated, the liquid fuel is sprayed from the liquid fuel spray nozzle and mixed with the primary air. This mixed gas is ignited by the discharge spark of the spark plug, and the burner unit 5 forms a flame in the front combustion chamber 4 and starts combustion. Further, the high-temperature exhaust gas combusted in the combustion chamber 4 flows into the heat exchanger 3 and exchanges heat with the circulating water in the circulation pipe 23, passes through the exhaust box 2, and goes out of the exterior body 1 from the exhaust top 9. Discharged. The hot water thus heated is circulated and supplied to the external radiator via the external pipe as described above.
[0006]
[Problems to be solved by the invention]
By the way, as shown in FIG. 6, the heating unit 30 of the conventional heat source apparatus described above has a holding bracket B in which the fixing bracket A attached to the end surface portion of the exhaust box 2 on the exhaust box 2 side is attached to the wall surface of the holding plate 18. It was fixed by screwing C from the front. Therefore, when performing maintenance / inspection of the burner unit 5 (for example, cleaning and replacement of spark plugs, frame rods, etc.), the front panel and other panels are removed and the front surface of the exterior body 1 is opened. After removing the circulation pipe 23 connected to the exchanger 3, it is necessary to pull out the entire heating unit 30 to the outside of the exterior body 1 to uncouple the burner unit 5 and the heat exchanger 3. The maintenance and inspection work is troublesome and time-consuming, and the circulation pipe 23 must be disconnected, and the liquid (antifreeze) in the heat exchanger 3 and the circulation pipe 23 flows out to the outside. -When the connection of the circulation pipe 23 after the inspection is insufficient, there is a concern that problems such as liquid leakage occur during use.
[0007]
The present invention has been made in view of the above circumstances, and combustion that improves maintenance by enabling maintenance and inspection of the burner section without removing the circulation pipe connected to the heat exchanger. The purpose is to provide equipment.
[0008]
[Means for Solving the Problems]
That is, according to the first aspect of the present invention, an exhaust box is connected to the tip, a combustion chamber is formed in the rear, and a circulation pipe is connected, and the heat exchanger is heated. And a heating unit configured integrally with a burner blower for supplying combustion air to the burner unit, and the heating unit serves as a fulcrum for the locking fitting attached to the exhaust box. It is characterized by being supported and supported by a holding plate.
[0009]
Moreover, in this invention of Claim 2, the rotation fulcrum of the said heating unit is formed in the front side of a combustion apparatus, It is characterized by the above-mentioned.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to FIGS.
[0011]
As shown in the drawing, the exhaust unit 2, the heat exchanger 3, the burner unit 5, the burner blower 6, and the like are integrally assembled in the lateral direction to constitute the heating unit 30. In this embodiment, the heating unit 30 is attached between the L-shaped locking bracket 20 attached to the top of the exhaust box 2 and a sister tank 10 arranged in parallel therewith. The point which is hinged and supported by the holding plate 18 is different from the conventional one. The holding plate 18 is U-shaped and is suspended from the front surface of the device toward the back side, and the side on the back side is fixed to the back surface of the exterior body 1 by screws. The configuration and arrangement of the sister tank 10, the circulation pump 7, the fuel tank 13, etc. are all the same as in FIG.
[0012]
FIG. 3 shows an embodiment of the hinge / support mechanism of the heating unit 30. As shown in the figure, a plurality of slit-like locking holes 19 are formed in a line on the front side of the U-shaped holding plate 18, while an L-shaped locking bracket 20 attached to the exhaust box 2 is provided on the front side. Is provided with a hook-shaped locking claw 21 that is loosely fitted in the locking hole 19 of the holding plate 18. By inserting the locking claw 21 into the locking hole 19 of the holding plate 18 from the inside, The flange portion is locked in the locking hole 19, and the heating unit 30 is rotatably supported by the holding plate 18 with the locking claw 21 as a fulcrum. Furthermore, the heating unit 30 supported by the holding plate 18 is attached to the main body of the apparatus by fixing the outer cylinder portion of the burner portion 5 to the partition plate 22b fixed to the back surface of the exterior body 1 using the fixing bracket 22a. It is firmly fixed.
[0013]
In the above configuration, if the fixing bracket 22b that fixes the burner portion 5 of the heating unit 30 is removed to leave the heating unit 30 in a free state and the heating unit 30 is pulled forward, as shown in FIG. The unit 30 rotates around the exhaust box 2 side and the burner portion 5 protrudes to the front side of the device (in this case, since the circulation pipe is made of rubber, it does not hinder the rotation of the heating unit 30). The operator can perform maintenance / inspection of disassembly / cleaning of the burner portion 5 with the heating unit 30 held. In addition, the burner part 5 can be easily removed by removing the set screw 24 that connects the burner part 5 and the combustion chamber 4. For example, if an S-tight screw is used as the set screw 24, a nut is not necessary, so that the operation of disassembling and attaching the burner portion 5 can be performed more easily and reliably.
[0014]
Even if the burner unit 5 is removed, the heat exchanger 3 and the exhaust box 2 are supported on the main body side by the locking metal fitting 20, so that they can be operated independently, and the operator can work from the front side of the device. Therefore, workability is very good. Further, since maintenance / inspection work can be performed without removing the heating unit 30, there is no need to remove the circulation pipe 23, and therefore there is no fear of liquid leakage.
[0015]
【The invention's effect】
As described above, according to the first aspect of the present invention, the heating unit composed of the exhaust box, the heat exchanger, the burner part, and the burner blower is hinged and supported with the tip part as a fulcrum. Since it was set as the structure, the burner part can be made to protrude in the front side of an apparatus by making the burner part side of a heating unit free, and rotating ahead. Therefore, at the time of maintenance / inspection, the operator can disassemble / clean the burner part from the front of the apparatus while keeping the heating unit locked, and the workability is greatly improved. In addition, since there is no need to remove the circulation pipe, there is no risk of liquid leakage.
[0016]
Further, according to the present invention of claim 2, since the rotation fulcrum of the heating unit is formed on the front side of the combustion device, the rotation space (depth of the device) of the heating unit can be minimized. Equipment can be miniaturized.
[Brief description of the drawings]
1A and 1B are diagrams showing a structure of a heat source machine to which the present invention is applied, in which FIG. 1A is a front view and FIG. 1B is a right side view;
FIG. 2 is a top view and a partially enlarged view showing the structure of a heat source machine to which the present invention is applied.
FIGS. 3A and 3B are views showing a hinge / support structure of a heating unit, in which FIG. 3A is a front view and FIG. 3B is a partial cross-sectional view.
FIG. 4 is a top view of the heat source device showing a state in which the heating unit is rotated forward.
FIGS. 5A and 5B are diagrams showing an internal structure of a conventional heat source machine, where FIG. 5A is a front view and FIG. 5B is a right side view.
FIG. 6 is a top view showing a fixing structure of a conventional heating unit.
[Explanation of symbols]
2 Exhaust box 3 Heat exchanger 4 Combustion chamber 5 Burner section 6 Burner blower 18 Holding plate 20 Locking bracket 23 Circulation pipe 30 Heating unit

Claims (2)

An exhaust box is connected to the front end portion, a combustion chamber is formed in the rear portion, and a heat exchanger to which a circulation pipe is connected, a burner portion for heating the heat exchanger, and combustion air in the burner portion A heating unit configured to be integrally assembled with a burner blower for supplying air, and the heating unit is hinged and supported by a holding plate with a locking bracket attached to the exhaust box as a fulcrum. Combustion equipment characterized by. The combustion apparatus according to claim 1, wherein a rotation fulcrum of the heating unit is formed on a front side of the combustion apparatus.

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