JP2000084435A - Smokeless roaster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the ability to remove smoke and oil mist generated from the combustion part of a smokeless roaster by repressing the vibration of a positive electrode of an electric precipitation means to increase the current- passing capacity. SOLUTION: A smokeless roaster 6 is produced, which is equipped with at least a combustion part 1, an exhaust passage 3 having a ring-shaped suction port 2 installed on the upper outer peripheral part of the combustion part 1, and an electric precipitation means 4 externally mounted on the halfway of the exhaust passage 3. An electrode bundle 7 whose horizontal cross section is shaped like a honeycomb and bar-shaped electrodes 9 each of which is inserted into the center of a space of a vertically long cylindrical electrode in the electrode bundle 7 are combined to be built into the exhaust passage 3 as the electric precipitation means 4 of the smokeless roaster 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a smokeless roaster incorporating an electric dust collecting means in an exhaust passage.

[0002]

2. Description of the Related Art Conventionally, a smokeless roaster having the above structure has been
For example, it is known from Japanese Utility Model Laid-Open No. 63-43655.
According to this known technique, it is possible to considerably remove smoke and odor-causing substances in exhaust gas generated during grilling.

[0003]

However, as shown in FIG. 7, a large number of anodes 51 arranged in parallel in one direction as the electric precipitating means 50, and between the adjacent ones of the anodes 51, as shown in FIG. Since it has a structure in which the cathode 52 made of a wire is interposed, there is a problem that the discharge capacity cannot be increased. This is because if the discharge capacity is increased, the anode electrode 51 will vibrate in the arrow Y direction.

[0004] In addition, the anode 51 having the above structure has a problem that the efficiency of capturing smoke derived from grilled meat, particularly oil mist accompanying the smoke, is low. The reason is that the oil mist is electrified and adheres to the front and back surfaces 53 of the anode 51, but since the anodes 51 are only arranged in parallel, the area S of the front and back surfaces 53 is increased. Has a limit. In order to increase the area S of the front and back surfaces 53, the distance D between the anodes 51 must be reduced, and as a result, the vibration increases.

Therefore, the present inventors have eagerly aimed at increasing the installation area of the anode per unit cross-sectional area without vibrating the anode of the electrostatic precipitator incorporated in the smokeless roaster, thereby increasing the efficiency of capturing oil mist. As a result of the study, the present inventors have found that the anode should have a specific structure and completed the present invention. Therefore, an object of the present invention is to enhance the ability to remove smoke and oil mistakes generated from the combustion part of the smokeless roaster by suppressing the vibration of the anode of the electric dust collecting means and increasing the current carrying capacity.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a combustion section, an exhaust passage having a suction port at an upper peripheral portion thereof, and an electric collector interposed in the exhaust passage. In a smokeless roaster having at least dust means and deodorizing means, the electric dust collecting means is formed by forming an electrode concentrator having a honeycomb cross section in a horizontal direction, and a space center of a cylindrical electrode long in the vertical direction of the electrode concentrator. And a rod-shaped electrode inserted into the portion.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, preferred embodiments of the present invention will first be described in detail. As shown in FIG. 5, the basic structure of a smokeless roaster 6 according to the present invention is the same as that of the prior art. A cooking device 14 is dropped into a hole 13 provided at the center of a table-like cooking table 12 fixed to the upper end of the casing-like frame 11, and the cooking device 14 is formed with an exhaust passage 3. Exhaust pipe 15 is connected.

The cooking device 14 includes an outer pot 16, an inner pot 17 inserted at a predetermined interval from the outer pot 16 to form a part of the exhaust passage 3, and an inner pot 17.
, A gas burner 19 installed in the inner pot 17 so that the combustion unit 1 is located at the upper center of the water tank 18, and a radiator plate 20 fixed above the gas burner 19. And a top ring 10 having an annular suction port 2 which is annularly arranged at a predetermined interval in the upper part on the outer peripheral side of the roast 21 provided at the upper end of the inner pot 17 or the water tank 18. Have been.

Further, the top ring 10 closes a space between upper ends of the outer shuttle 16 and the inner shuttle 17 to form an upstream passage wall of the exhaust passage 3. A fan 22 is inserted downstream of the exhaust passage 3. When the fan 22 is driven, the fan 22
Exhaust gas containing smoke, odor-causing substances, and fundus irritants generated during the grilling of the meat on the grill 1 is processed as described below, and is exhausted to the outside of the smokeless roaster 6 through the exhaust passage 3.

In the smokeless roaster 6 according to the present invention having the above-described structure, the electric dust collecting means 4 and the deodorizing means 5 are further incorporated in the exhaust pipe 15 as the exhaust passage 3. As shown in FIG. 1 and FIG. 2, the electric dust collecting means 4 is a horizontal cross section formed by focusing a vertically long rectangular cylindrical electrode 8 formed by partitioning the cross section by a grid-shaped partition wall 23. Are comprised of a honeycomb-shaped electrode concentrator 7 and a rod-shaped electrode 9 inserted into the center of a space S that is long in the vertical direction of the cylindrical electrode 8. Note that the tip of the rod-shaped electrode 9 is slightly sharpened or tapered, and is located at a position lower than the upper end surface of the electrode concentrator 7.

The rod-shaped electrode 9 is fixed to the electrode support plate 2 via an insulator 24 having a predetermined length.
5 are planted. The electrode support plate 25 is provided with a plurality of strip-shaped cut-out holes 26 at predetermined intervals so that the fluid passing through the exhaust passage 3 can pass with a smaller fluid resistance. In the present invention, the partition wall 23 is formed of a metal plate, the interval between them is about 15 to 50 mm, the thickness is about 1.5 to 4 mm, and the rod-shaped electrode 9 is made of carbon or metal. The diameter ranges from about 1 to 8 mm. Therefore, a relatively high voltage can be applied, and the dust collection efficiency can be increased.

As shown in FIG. 6, the odor means 5 is provided at a predetermined interval on one side or both sides of a honeycomb-shaped catalyst carrier 27 for allowing exhaust gas to flow in a certain direction. Light sources 28, which are fixed to the exhaust pipe 15 via a support 29. The catalyst carrier 27 is made of a plurality of porous materials such as fiber aggregates and foams, and a deodorizing catalyst C having a function of decomposing a fundus irritant can be carried therein. As the deodorizing catalyst C, a titanium-based catalyst activated by light, such as titanium oxide, is preferably used.

When the smokeless roaster 6 having the above structure is used in grilled meat dishes and grilled fish dishes in the same manner as in the prior art,
The hot air containing dust, odor, and fundus irritants rises above the rostrum 21. When the fan 22 is driven, the hot air is sucked from the annular suction port 2 of the top ring 10, flows through the exhaust pipe 15, and is exhausted to the outside of the smokeless roaster 6.

However, when the hot air flows through the exhaust pipe 15, since the exhaust pipe 15 incorporates the electric dust collecting means 4 and the deodorizing means 5, dust containing oil mistakes, soot and the like in the hot air is not removed. First, when passing through the space S between the cylindrical anode 8 and the rod-shaped electrode 9 of the electrode concentrator 7, the rod-shaped electrode 9
Is charged by the discharge shower performed on the partition 23 and is captured by the partition 23. Then, it flows down the partition wall 23 and flows down.
As shown in FIG. 3, since it is composed of a bundle of square cylindrical tubular electrodes 8, that is, in a grid pattern crossing the anode electrode of the related art vertically and horizontally, If one of the electrodes in the lateral direction tries to vibrate, the electrode in the other direction blocks it and the electrode does not vibrate.

Further, since the rod-shaped electrode 9 is arranged at the center of the cylindrical electrode 8, the discharge distance from the rod-shaped electrode 9 to the partition wall 23 of the cylindrical electrode 8 becomes almost equal at any position in the radial direction. In combination with the above effects, the discharge capacity can be increased, and the efficiency of removing dust, which is often generated when using a smokeless roaster, can be significantly increased. Further, since the cylindrical electrodes 8 are formed in a quadrangular shape, the partitions 23 of the cylindrical electrodes 4 adjacent to each other can be closely fitted to each other. The fluid resistance of the exhaust gas passing through the passage 3 can be suppressed smaller.

Next, the hot air having passed through the electric dust collecting means 4 passes through the deodorizing means 5. At this time, it passes through the catalyst carrier 27 in a plurality of stages, but the catalyst carrier 28 absorbs the odor-causing substance and the fundus irritating substance, promotes the contact with the deodorizing catalyst C, and changes to another substance. Originally, the catalyst performance tends to decrease with the passage of time.
In addition to the effect that the deterioration of the performance of the deodorizing catalyst C is suppressed because light is irradiated from the
The effect of activating is added. As a result, once the deodorizing means 5 is incorporated in the smokeless roaster 6, the function of the deodorizing catalyst C can be maintained semi-permanently without updating.

Further, in the present invention, since a titanium-based photocatalyst is used as a catalyst, it is possible to convert a fundus irritating substance into another substance in particular, and as a result, a person who is cooking around a smokeless roaster or is eating. It does not hurt human eyes.

The present invention can be implemented by partially modifying the above-described embodiments as follows, within the limits of the basic technical concept and without significantly impairing the effects of the invention. That is, as shown in FIG. 4, an electrode bundle 7 is formed by focusing a vertically long hexagonal cylindrical electrode 8 formed by partitioning the cross section by a honeycomb-shaped partition wall 23, and constitutes the electrode bundle 7. The rod-shaped electrode 9 can be positioned in the cylindrical electrode 8 by the electrode support 25. In this embodiment, the effect that the discharge distance from the rod-shaped electrode 9 to the partition wall 23 of the cylindrical electrode 8 can be made more equal than in the case of the electrode bundle 7 shown in FIG. Further, a plurality of the suction ports 2 may be arranged on any of the top rings 10 whose planes are annular or square.

[0019]

As described in detail above, the present invention suppresses the vibration of the anode of the electrostatic precipitator to increase the current carrying capacity, thereby improving the ability to remove smoke and oil mist generated from the combustion part of the smokeless roaster. It has an excellent effect of enhancing.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing one embodiment of an electric dust collecting means incorporated in a smokeless roaster of the present invention.

FIG. 2 is a sectional view of a main part of an electric dust collecting means to be similarly incorporated.

FIG. 3 is a cross-sectional view showing a part of an anode of the electrostatic precipitator according to the present invention.

FIG. 4 is a cutaway perspective view showing another embodiment of the electric dust collecting means, partially cut away;

FIG. 5 is a schematic sectional view of a smokeless roaster according to the present invention.

FIG. 6 is a partially cutaway perspective view showing one embodiment of the deodorizing means incorporated in the smokeless roaster of the present invention.

FIG. 7 is a cross-sectional view showing a part of an anode of an electrostatic precipitator according to the related art.

[Description of References] 1 Combustion unit 2 Annular suction port 3 Exhaust passage 4 Electric dust collecting means 5 Deodorizing means 6 Smokeless roaster 7 Electrode converging body 8 Cylindrical electrode 9 Rod electrode S Space

Claims (1)

[Claims] An exhaust passage (3) having a suction portion (2) in an upper peripheral portion of a combustion portion (1), an electric dust collecting means (4) interposed in the exhaust passage, and a quenching device. Odor means (5)
In the smokeless roaster (6) having at least the following, the electric dust collecting means (4) is provided with an electrode concentrator (7) having a honeycomb cross section in a horizontal direction, and a cylindrical electrode long in the vertical direction of the electrode concentrator. (8) A smokeless roaster characterized by comprising a space (S) and a rod-shaped electrode (9) inserted in the center.