JPH0531459Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a heating appliance with an air purifier, which is an air purifier added to the heating appliance.

<Prior Art> Conventionally, this type of device has had a blower fan dedicated to the dust collection unit, as disclosed in Utility Model Application No. 62-84154, for example.

<Problems that the invention aims to solve> However, this conventional type requires a dedicated blower fan for the dust collection unit, which has the disadvantage of requiring a large number of parts and high costs. In order to remove dust, etc. from the combustion air supplied to the combustion air, a suitable mesh mesh filter was installed, as in, for example, Japanese Utility Model Application Publication No. 10319/1983, but this filter alone was not sufficient to remove fine dust, etc. It passes through and cannot be removed, and it is supplied to the combustion burner together with the combustion air, causing a crackling sound during combustion and clogging the burner.
Alternatively, they had problems such as hindering the formation of a clean combustion flame.

<Means for Solving the Problems> This invention focuses on this point, and in order to solve the above-mentioned drawbacks, in particular, the configuration is modified such that the combustion fan 12 that supplies combustion air to the combustion burner 4 has a On the downstream side of the filter 13, an electrostatic dust collection unit 16 is provided which charges fine dust and cigarette smoke in the air and removes them by attracting them to a dust collection electrode piece 19.

<Function> When the combustion fan 12 is driven to start heating, the indoor air from which relatively large dust particles have been removed by the filter 13 of the suction port 14 flows into the ventilation path 15 as combustion air, and then passes through the dust collection unit. 16, fine dust and cigarette smoke are further removed, and the clean air is supplied to the combustion burner, resulting in a clean combustion flame without crackling noise or clogging of the burner part during combustion. It is extremely convenient because good combustion can be carried out and the heating effect can be enhanced, and the indoor air can be purified at the same time as good combustion is carried out.

Furthermore, since the combustion fan also serves as an air cleaning fan, the number of parts is small and the configuration is simple, so it can be provided at low cost.

<Example> Next, a heating appliance with an air purifier according to this invention will be explained using a preferred example shown in the drawings.

Reference numeral 1 denotes a frame body, which is partitioned inwardly by a partition plate 2 and equipped with a cartridge type fuel tank 3 on one side, and a combustion burner 4 on the lower part of the central part on the other side.
A combustion chamber 5 whose upper end is exposed is partitioned by a partition plate 6.

Reference numeral 7 denotes a cylindrical combustion tube that covers the combustion burner 4 within the combustion chamber 5, and its upper end is closed with a catalyst body 8 that purifies the combustion gas.

Reference numeral 9 denotes a warm air fan provided protruding from the back of the frame 1 at the rear of the combustion chamber 5. When driven, indoor air is drawn in through the cover 10, and the combustion gas generated by combustion in the combustion burner 4 is sucked out. The heated air is mixed with the hot air and discharged as warm air from the air outlet 11 formed at the lower front surface of the frame 1.

Reference numeral 12 denotes a combustion fan that supplies combustion air to the combustion burner 4, which sucks room air through an inlet 14 formed on the side wall of the frame body 1 equipped with a removable filter 13, and transfers this air between the combustion fan 12 and the inlet. 14 and the combustion burner 4.
The combustion air is supplied to the combustion burner 4 as combustion air.

Reference numeral 16 denotes an electrostatic dust collection unit provided in the air passage 15 between the combustion fan 12 and the intake port 14. It is made of aluminum and connected to a positive power source within a plastic outer frame 17, and has a side of approximately 15 mm. A discharge counter electrode 2 in which a plurality of square holes 18 are regularly formed and one side of the square holes 18 is bent inward to form a dust collecting pole piece 19.
0, and a discharge electrode 21 whose needle-like tip is shown in the center of each square hole 18 of the discharge counter electrode 20 and which is connected to a negative power source.

Also, this dust collection unit 16 has a bottom part and a ventilation path 15.
By connecting with the connection terminals 22 and 23 inside, electricity is supplied.
DC3.4Kv boosted by a transformer (not shown)
A voltage of about 100% is applied between the discharge counter electrode 20 and the discharge electrode 21 (negative discharge), and suspended matter such as fine dust and cigarette smoke in the air that flows in through the intake port 14 when the combustion fan 12 is driven. is charged, attracted and adsorbed to each dust collection pole piece 19 and removed, and clean air is supplied to the combustion burner 4 as combustion air.Furthermore, by this negative discharge, part of the oxygen _O2 in the air is removed. When the ozone reacts and combines with oxygen O ₂ in the vicinity, O ₂ → (O) + (O) O ₂ + O → O ₃ as shown in the following equation, and unstable ozone O ₃ is generated.
Reference numeral 24 denotes a handle which is fixed to the dust collecting unit 16 and is used to take out the dust collecting unit 16 from the outlet 25 on the upper surface of the frame 1 in order to wash the dust collecting unit 16 with water for cleaning or the like.

26 is a metering tank that once receives fuel from the fuel tank 3, and the fuel pipe 2 is equipped with a solenoid valve 27 in the middle.
8 supplies fuel to the combustion burner 4.

Reference numeral 29 is an opening/closing lid for entering and exiting the fuel tank 3.

Next, the operation of this embodiment will be explained.

If the combustion fan 12 and the solenoid valve 27 are energized now, the combustion fan 12 will start operating and after removing large dust from the indoor air through the filter 13,
The air is sucked in through the suction port 14 and supplied to the combustion burner 4 as combustion air via the ventilation path 15.Furthermore, the electromagnetic valve 27 supplies fuel supplied from the fuel tank 3 to the combustion burner 4, and ignites it with an appropriate ignition means. Then, the combustion burner 4 starts combustion, and if the hot air fan 9 is driven at the same time as this combustion, the hot air generated by the combustion of the combustion burner 4 is released into the room from the air outlet 11, and a good hot air is generated. It is used for heating. Furthermore, at this time, in order to perform an air purifying action, if electricity is started to be applied to the dust collection unit 16, the indoor air that has flowed into the ventilation path 15 through the suction port 14 will pass through the dust collection unit 16. As a result, fine dust, cigarette smoke, etc. are removed and the air becomes clean.This process is repeated one after another to purify the indoor air, and after this air purification, the clean air is passed through the ventilation path 15 as it is. Since the combustion air is supplied to the combustion burner 4 as combustion air, no fine dust is mixed in, and there is no crackling noise during combustion or clogging of the burner part, resulting in a good combustion flame. Furthermore, since the dust collection unit 16 here is of an electrostatic type and generates unstable ozone O ₃ during operation, this ozone O ₃ is supplied to the combustion section to satisfy the following equation: It easily combines with harmful carbon monoxide, which is generated during combustion, to become harmless carbon dioxide, CO ₂ , and can promote safe and complete combustion.

(CO) + (O ₃ ) → CO ₂ + O ₂ <Effect of the invention> In short, this invention has the advantage that air is removed in the middle of the air blowing path 15 of the combustion fan 12 that supplies combustion air to the combustion burner 4 and on the downstream side of the filter 13. An electrostatic dust collection unit 16 that charges the fine dust and cigarette smoke inside and attracts and adsorbs it to the dust collection electrode piece 19 to remove it.
Because it is equipped with It is possible to reliably prevent problems such as clogging of the burner and crackling combustion noise caused by dust and cigarette smoke mixed in the combustion air, and ensure a good combustion flame at all times. It can perform combustion, and since the combustion fan also serves as an air cleaning fan, it has the advantage of not requiring a dedicated fan, requiring fewer parts, and being able to provide the product at low cost.

[Brief explanation of the drawing]

FIG. 1 is a front cross-sectional view of a heating appliance with an air purifier to which an embodiment of the invention is attached, FIG. 4... Combustion burner, 12... Combustion fan, 15
...Blower route, 16...Dust collection unit.

Claims (1)

[Scope of utility model registration request] In the middle of the ventilation path 15 of the combustion fan 12 that supplies combustion air to the combustion burner 4 and at the filter 13
An air purifier characterized by being equipped with an electrostatic dust collecting unit 16 on the downstream side of the air purifier, which charges fine dust in the air, cigarette smoke, etc., and removes it by attracting and adsorbing it to a dust collecting electrode piece 19. Heating equipment.