JPS6294726A - Kerosine burning device - Google Patents

Abstract

PURPOSE:To prevent the generation of foul odor by re-burning exhaust gas which exists in a burning burner and is sucked into the suction hole of an air blower and discharged again from an air blowing hole into the burning burner at the ignition and fire extinction time. CONSTITUTION:By utilizing the suction hole 2'' of an air blower 2, a secondary air inlet hole 4 placed at the upper part of a burning burner 1 and the hole 2'' are connected with a connecting path 5. The opening operation of the connecting path 5 with a solenoid 8 at the ignition and fire extinction time allows imperfect burning gas (foul odor) to be sucked to the hole 2'' side of an air blower 2 and to circulate again into the burner 1 from an air blowing hole 2', and therefore the discharged quantity of foul odor is reduced. When the connecting path between the inlet hole 4 and a bypass 6 is opened by the opening operation of a value 7 at the burning time, a part of air transferred to a draft air duct 3 is branched into the bypass 6 and is transferred to the inlet hole 4 via the path 5 to complete burning at the upper part of the turner 1.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an indoor exhaust (open type) oil combustor that does not have an exhaust stack, and is a method for removing odors during ignition and extinguishing from the combustion burner. This is to prevent it from being released indoors.

[Conventional technology]

In most conventional indoor exhaust type combustors without an exhaust stack, the exhaust gas combusted in the burner is released indoors as is, but in rare cases, a catalytic device is installed above the burner to activate the catalytic action. There are some things that can be re-burned. During normal combustion, almost no odor is contained in the exhaust gas, but when igniting or extinguishing the combustion gas, the balance between the amount of combustion gas and the amount of combustion air is disrupted, causing all the odor to be emitted into the room. Ta.

[Problem that the invention seeks to solve]

The present invention aims to prevent the generation of odors, and uses the air blower's air outlet and suction port to suck the exhaust gas in the combustion burner into the air blower's air intake port when igniting or extinguishing the air. The purpose is to send the gas to the combustion burner and re-burn it, thereby completely reducing odor generation.

[Structure of the invention]

The structure of the present invention will be described with reference to figures showing embodiments. Reference numeral 1 denotes a combustion burner that burns petroleum fuel, and air necessary for combustion is supplied by a blower 2 through an air passage 3. 4 is a secondary air inlet leading to the upper part of the combustion burner 1, 5 is a blower 2
a communication path connecting the suction port 2 and the secondary air introduction port 4;
is a bypass path that connects the ventilation path 3 and the communication path 5.

7 is a valve provided at the connection between the connecting path 5 and the bypass path 6; 9 when igniting or extinguishing the air, the valve is connected to the inlet 2 of the blower 2 and the secondary air inlet 4;
The communication path 5 between the secondary air inlet 4 and the bypass pipe 6 is opened during combustion. 8 is a solenoid that operates the opening/closing of the valve 7; 9 is an ignition heater provided in the combustion burner 1; 10 is a fuel supply device that sends fuel to the combustion burner 1 via the oil feed pipe 11; 12 is located in the middle of the oil feed pipe 11. 13 is a combustion tube provided on the upper part of the combustion burner 1; 14 is an outer shell surrounding the combustion burner 1;
Reference numeral 15 denotes a partition plate provided above the gap between the combustion burner 1 and the outer shell 14, and the secondary air inlet 4 is provided above the partition plate 15.

[Effect]

At the beginning of use, the ignition heater 9 is energized to preheat it, and after the preheating is completed, the solenoid 12 is opened to send fuel from the fuel supply device 10 to the combustion burner 19. The fuel is vaporized and ignited by the ignition heater 9, which has previously been preheated. On the other hand, the blower loss 2 is activated and combustion air is sent to the combustion burner 1, so the fuel vaporized and ignited in the combustion burner 1 starts combustion, completes combustion in the combustion tube 13, and is exhausted. is released into the room, and after the start of combustion, the vaporization combustion continues with the residual heat of the combustion burner 1 even if the ignition heater 9 is not energized. (Solenoid 12) is closed, and after a while, the blower 2 is stopped to complete the extinguishing operation.

Therefore, at the start of combustion and when extinguishing, the amount of vaporized fuel and the blower 2
Due to the imbalance between the amount of air blown and the amount of air blown, there is a tendency for incomplete combustion and a bad odor is emitted in a combustor that releases exhaust gas into the entire room.

Measures are needed to eliminate (or reduce) this foul odor. In the present invention, using the suction port 2'' of the blower 2,
A secondary air inlet 4 provided at the upper part of the combustion burner 1 and an inlet 2 are connected through a communication passage 5.

By fully opening the communication path 5 when igniting or extinguishing the solenoid 8, the combustion burner 1 can be prevented from incompletely combusted gas (bad odor).
This reduces the amount of foul odors emitted. Also, during combustion, when the valve 7 is opened to open the communication path between the secondary air inlet 4 and the bypass path 6, a part of the air sent to the ventilation path 3 is
Secondary air inlet 4 is diverted to bypass path 6 via communication path 5
This completes the combustion in the upper part of the combustion burner 1.

〔Effect of the invention〕

The present invention has a structure in which only the bypass passage 6 and the valve 7 are provided, and as mentioned above, incomplete combustion gas (offensive odor) occurs during ignition and extinguishing.
Since the odor is sucked into the blower and circulated to the combustion burner 1 for re-combustion, the amount of bad odor emitted into the room can be reduced to a minimum.

Since the blower 2 has a blower port and an inlet port which are indispensable, it can be used without adding any special structure. Also, during combustion, secondary air is sent from the air passage 3 to the secondary air inlet 4 via the bypass passage 6, which contributes to complete combustion in the upper part of the combustion burner 1, so that the exhaust gas always contains only completely combusted gas. This is a release.

Further, the opening and closing operation of the valve 7 has been shown in the embodiment in which it is electrically operated using the solenoid 8, but it may also be operated manually or mechanically in conjunction with the ignition/extinguishing operation.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a main part showing an embodiment of the present invention. FIG. 2 is a state diagram for explaining the flow of air. ■ Combustion burner, 2... Air blower, 2... Air outlet, 2... Inlet, 3 - Air duct, 4... Secondary air inlet, 5... Communication Mouth, 6...Bypass path, valve...7゜years old 1 concave + λ Fig. 3 M

Claims (1)

[Claims] Combustion air is supplied to the combustion burner 1 from the air outlet 2' of the blower 2 via the air passage 3, while the secondary air inlet 4 leading to the upper part of the combustion burner 1 and the air supply inlet 2'' of the air blower 2 are connected to the communication passage 5.
The communication path 5 and the ventilation path 3 are connected by a bypass path 6, and a valve 7 is provided at the connection between the communication path 5 and the bypass path 6.
When igniting or extinguishing the fire, the valve 7 opens the communication path 5 between the supply inlet 2'' and the secondary air inlet 4 to suck odor into the blower 2, and when burning, the valve 7 inhales the secondary air. Inlet port 4 and bypass path 6
An oil combustor configured to open a communication path and send combustion air to a secondary air inlet 4.