JPS63267854A - Flue gas processing device - Google Patents

Abstract

PURPOSE:To enable the indoors to be held in a clean state, by providing an air discharge port, a hood, situated in a position above the air discharge port, a blower to feed air present in a communicating passage, and a cleaning means for air passing through the communicating passage. CONSTITUTION:In a casting 1, a blast pipe 3 is situated in a gap part 13 between outer and inner frames 11 and 12 throughout the whole periphery thereof in a state to surround a combustion part 2 with the inner frame 12 therebetween. A blower 4 is mounted to the outer frame 11, and a number of air injection nozzles 31... are mounted upward to the blast pipe 3 circumferentially at intervals of a given distance. When heating cooking is started at the combustion port 2 and the blower 4 is driven, smoke and a smell generated at the combustion part 2 is captured by a swirl generated by swirl phenomenon occurring due to an air jet flow from the nozzles 31. The captured smoke and smell are sucked through a hood 7, and after oil mist is removed by an oil mist filter 8, the smoke and smell enters a communicating passage A. After a smoke component and a smell component are removed by a smoke-eliminating deodorizing filter 6, the smoke and the smell are injected from the nozzle 31... through the blast pipe 3. Thus, the indoors are kept in a clean state.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is a cooking device that is integrated into a cooking device for cooking meat, vegetables, fish, etc., or used in combination with a heating device such as a gas stove. The present invention relates to a flue gas treatment device for use in other industries.

(Prior art) Conventionally, there is almost no protection against smoke and odors generated when cooking with a tabletop heating cooker such as a yakiniku pot, and the only way to deal with it is to use the built-in ventilation fan. Exhaust smoke and odors were expected to fill and stagnate.

(Purpose of the Invention) Therefore, the present invention provides an exhaust gas treatment device that can quickly and efficiently treat exhaust smoke and odors generated during cooking near the source of the smoke and keep the room clean. be.

(Structure of the Invention) The present invention provides a hood that has an air outlet that blows air upward, an intake port, and an exhaust port, and is provided above the air outlet with the intake port facing the air outlet. a communicating path that communicates and connects the exhaust port of the hood with the inlet side of the air outlet; air is sucked into the communicating path through the intake port of the hood, and the air in the communicating path is transferred to the air outlet; This is an exhaust gas treatment device comprising: an air blower that sends air to the inlet side of the communication path; and an air purification means that purifies the air passing through the communication path.

With this configuration, exhaust smoke and odors can be taken into the hood and purified immediately after they are generated by a jet of air from the air outlet.Moreover, by circulating the taken air through the communication passage, indoor air can be purified. The cleanliness retention effect can be enhanced.

(Example) Example of an exhaust gas treatment device integrated into a heating cooker (
The first embodiment) is shown in Figs. 1 to 6, and the embodiment (second embodiment) of the exhaust smoke treatment device used in combination with a heating cooker is shown in Figs. 7 to 9, respectively. ing. below,
Both embodiments will be explained. In addition, in the drawings of both embodiments, common parts are indicated by common symbols.

Embodiment 1 Embodiment 1 is a cooking appliance casing which also serves as a casing of an exhaust gas treatment device according to this embodiment, in which an outer frame 11 and an inner frame 12, which are formed into similar rectangular frame shapes, are spaced between each other. It is arranged such that a rectangular annular cavity 13 is formed therein. The inner frame 12 of the casing 1 is provided with a grill 21 at its upper opening, and below the grill 21, a burner 22, an oil drain guide plate 23, and a drain oil pan 24 are installed in order from the top. These constitute a combustion section 2 for cooking meat, vegetables, fish, etc.

Further, in the casing 1, a blower pipe 3 is provided in a gap 13 between the outer frame 11 and the inner frame 12, and extends around the entire circumference of the gap.
A blower 4 is attached to the outer frame 11 to surround the air pipe 3 through the inner frame 12, and to blow air into the air pipe 3. The blower pipe 3 has a large number of air jetting nozzles (hereinafter simply referred to as nozzles) 31 as air blowing ports.
are provided upwardly at predetermined intervals in the circumferential direction, and an upward jet of air is generated around the combustion part 2 by the simultaneous jet from each nozzle 31 . In this case, as shown in Fig. 2.3, each nozzle 31 is provided with an inclination, and the combustion part 2 The structure is such that the smoke and odor generated by the grill 21 are engulfed in a tornado flow of air that is ejected diagonally upward from each nozzle 31 as shown by the arrows in Figure 2.3, and rise. There is.

A communication pipe attachment portion 14 is provided on the − side in the longitudinal direction of the casing outer frame 11.
are integrally provided, and the communicating tube 5 is attached to this communicating tube attachment portion 14 in an upright state. The lower end of this communication pipe 5 is connected to the suction port 41 (
(shown in FIG. 4). On the other hand, the communication pipe 5
The upper part of the casing is bent toward the inside of the casing, and a hood 7 is provided at the bent end. This hood 7 has an intake lower 1 on the lower surface that takes in air and an exhaust lower 2 on the upper surface, and is equipped with an oil mist filter 8 in the intake lower 1 portion, and the intake lower 1 is connected to the upper surface of the casing, that is, the combustion section 2 and the nozzle. 31..., with the exhaust lower 2 communicating with the communication pipe 5.
installed on.

In this way, by the communication pipe 5, the blower 4, and the blower pipe 3,
A communication path A is configured to communicate between the exhaust lower 2 of the hood 7 and the inlet side of the nozzles 31 . After being taken into the hood 7 together with the exhaust smoke and odor from the
It is configured so that it is ejected from... That is, the air containing smoke and odor is configured to circulate through the nozzle 31...→hood 7→communication path A→nozzle 31...

As shown in FIG. 4, the blower 4 has a suction port 41 connected to the connecting pipe 4.
The J! As shown in FIG. 52, the discharge port 42 is connected to the blower pipe 3 in communication. In FIG. 4, 43 is an impeller of this blower 4, and 44 is a motor for driving the impeller.

The smoke eliminating and deodorizing filter 6 is constructed by filling a filter case 61 with an adsorbent 62 made of activated carbon, ceramic spheres, etc., and the inlet side is connected to the lower end of the communication pipe 5 . With this smoke eliminating and deodorizing filter 6, the communication path A
Smoke components (water vapor, carbon, etc.) and odor components in the air circulating inside are adsorbed and removed. In FIG. 4, 63 and 64 are adsorbent holding nets of this filter 6.

On the other hand, as shown in FIGS. 5 and 6, the oil mist filter 8 in the hood 7 consists of two metal plates 8a and 8, such as stainless steel plates, each having a large number of bulging vent holes 81.
b are installed in the hood 7 vertically parallel to each other with a gap 82 between them, and with their vent holes 81... being shifted from each other, so that air containing exhaust gas flows through both metals. Plate 8a
, 8b and the gap 82 from bottom to top as shown by the arrow in FIG.

8b and is removed.

In this way, the oil mist filter 8 and the smoke eliminating and deodorizing filter 6 remove the components contained in the exhaust smoke in two stages for each type, thereby efficiently and reliably purifying the air passing through the communication passage A. be done.

Note that the hood 6 and the casing 1 are connected to the nozzle 31...
The positional relationship and orientation are set such that the air jet caused by the tornado phenomenon acts toward the hood 6, and the air suction action by the tornado phenomenon acts toward the hood 6.

Further, in FIGS. 1 to 3, reference numeral 15 denotes a protection net provided at the upper opening of the cavity 13 in the casing 1.

In the above configuration, when the blower 4 is driven at the same time that the combustion section 2 starts cooking meat, vegetables, fish, etc., the combustion section The smoke and odor generated in step 2 are captured by this tornado (airflow) at the same time as they are generated, and sucked up into the hood 6. The air containing exhaust smoke taken into this hood 6 first has oil mist removed by the oil mist filter 8, then enters the communication path A, and then smoke and odor components are removed by the smoke eliminating and deodorizing filter 6. After that, it passes through the blow pipe 3 and is ejected from the nozzle 31 again. In this way, the air containing exhaust smoke is purified while circulating through the path of the hood 7, the communication path A, the nozzle 31..., and the hood 7, so that the room is not filled with smoke and odor during cooking. , indoor air is kept clean. Moreover, this device does not release the air containing exhaust smoke into the room after a single purification process, but instead circulates it while purifying it, so the purification efficiency is high and the indoor air is almost isolated from the circulating air. As a result, the effect of keeping the indoor air clean is even higher.

Second Embodiment The second embodiment apparatus shown in FIGS. 7 to 9 has a heating device (
The figure shows a gas stove (this example will be explained below) and is used in combination with H.

That is, 9 is a casing, which is hollow and has a rectangular ring shape, and a gas stove H is installed inside this casing 9.
is now placed. In the casing 9, an annular air passage 91 is formed by the inner space of the casing itself, and in this air passage 91, a large number of nozzles 92... face diagonally upward to the outside, similar to the nozzle 31 of the first embodiment. At the same time, a blower 4 for sending air into the air passage 91 is provided on the - side in the longitudinal direction of the casing. Further, a communication pipe attachment portion 93 is integrally provided on the − side of the casing in the longitudinal direction, and as in the case of the first embodiment, the communication tube 5 is attached to the communication tube attachment portion 93, and the oil is attached to the tip of the communication tube 5. Each hood 7 is provided with a mist filter (not shown), and the lower end of the communication pipe 5 is connected to the blower 4 via a smoke eliminating and deodorizing filter 6. A communication path A is constituted by these.

The operation of the device of the second embodiment is basically the same as that of the device of the first embodiment, and the smoke and odor generated during cooking by the heating device H are generated by air jets from the nozzles 92... It is sucked into the hood 7 due to the tornado phenomenon, and is circulated through the communication path A1 nozzle 92 and the hood 7 while being purified by the oil mist filter and the smoke eliminating/deodorizing filter 6. Furthermore, the device of the second embodiment has the advantage that it can be used in combination with various heating devices such as not only gas stoves but also electric stoves and hot plates.

Other Embodiments (1) In both of the above embodiments, the blower 4 serving as air blowing and intake means was provided between the communication pipe 5 and the blower pipe 3, but the blower 4 may be provided in the hood 7.

Alternatively, the blower may be provided separately for blowing air and for sucking air, such as by providing a fan for blowing air between the communication pipe 5 and the blower pipe 3 and a fan for sucking air in the hood 7.

(If) Air purification means (filters) are provided in the hood 7 or the communication path A for both oil mist and smoke/deodorizing purposes.
They may be provided concentratedly at appropriate locations inside.

(m) In both of the above embodiments, the hood 7 was arranged so as to face almost the center of the casing 1.9, but the hood 7 was deviated from the center of the casing to the same longitudinal force side in plan view. It may also be placed. In this way, food 7
is located away from directly above the combustion surface of the cooking device or heating device, making it easier to cook because the space above the combustion surface can be used more widely.

(IV) It is desirable that the nozzle (air outlet) be provided diagonally upward toward the hood 7 as shown in each of the above embodiments, so that a tornado phenomenon is caused by the air jets produced by the nozzle. Even when the hood is directed upward, the upward air jet acts to guide smoke and the like to the hood 7, so that a good smoke exhaust treatment effect can be achieved.

(Effects of the Invention) As described above, according to the present invention, an upward air jet is created around the combustion part or heating device of a cooking device, and smoke and odor generated in the combustion part or heating device are removed by this air jet. Since the structure is such that the smoke and odor are taken into the hood and purified, exhaust smoke and odors during cooking can be quickly and efficiently disposed of near the source. Moreover, according to the present invention, the air containing exhaust smoke taken into the hood is not released into the room after a single purification process, but is instead returned to the air outlet through the communication path, that is, is circulated. Therefore, the purification efficiency is high and the air containing exhaust smoke can be isolated from the indoor air.

Therefore, during cooking, the room is not filled with smoke or odor, and it is possible to cook comfortably while keeping the indoor air clean.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the first embodiment of the present invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, Fig. 3 is a sectional view taken along the line -■ in Fig. 2, and Fig. 4 is a sectional view taken along the line IV-- IV line, FIG. 5 is an enlarged sectional view taken along the V-V line, FIG. 6 is a view taken along the Vl-Vl line in FIG. The figure is Figure 7 ■-■ line,
FIG. 9 is a cross-sectional view taken along the line IX-IX. 31.91... Nozzle as air outlet, 7...
Hood, 71...Intake port of the hood, 72...Exhaust port 4, A...Communication path, 5...Communication pipe constituting the communication path, 3...Blow pipe, 4... - Air blower, 6... Smoke deodorizing filter constituting the air purifying means, 8... Oil mist filter. Patent applicant Matsushita Electric Works Co., Ltd. Representative Patent attorney Etsushi Kotani
Patent Attorney Chief 1) Masayuki Patent Attorney Yasuo Itaya Figure 2 Figure 3 Figure 4 Figure 5 Figure 7

Claims (1)

[Claims] 1. An air outlet that blows air upward, and a hood that has an intake port and an exhaust port and is provided above the air outlet with the intake port facing the air outlet. , a communication path that communicates and connects the exhaust port of the hood and the inlet side of the air outlet, and air is sucked into the communication path through the intake port of the hood, and the air in the communication path is transferred to the air outlet. 1. A flue gas treatment device comprising: an air blower sent to the inlet side; and an air purification means for purifying the air passing through the communication path. 2. A plurality of air outlets are installed in a positional relationship such that a tornado effect is created in which air inside the jet is sucked up toward the intake port of the hood by air jets from each air outlet. A flue gas treatment device according to claim 1. 3. The smoke exhaust system according to claim 1, wherein the air purifying means is constituted by an oil mist filter provided in the hood and a smoke eliminating and deodorizing filter provided in the communication passage. Processing equipment. 4. The exhaust gas treatment device according to claim 1, wherein the blower is provided in the communication path or in the hood.