JPH09192028A - Fish roaster - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide a fish roaster that is smokeless, odorless, and does not cause clogging of the catalyst body during long-term use. A porous metal (9) is arranged in a smoke exhaust path (8) around an outer peripheral portion of a heater (10) with a gap, and an exhaust hole (12) is further provided.
By mounting the catalyst body 11 on the side, the oil mist is collected and burned by the porous metal, and the generated ash is pulverized into smoke, and the exhaust hole 12 is discharged to the outside of the system without adhering to and depositing on the catalyst body 11.
A fish roaster that eliminates clogging of the catalyst body and prevents deterioration of purification performance by discharging it from the inside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fish roaster aiming at smokelessness by mounting a heater having a porous metal on the outer peripheral portion and a catalyst body in an exhaust passage associated with a cooking chamber.

[0002]

2. Description of the Related Art Conventional smoke roaster cleaning methods for fish roasters include those in which only a catalyst body is mounted in an exhaust path associated with a cooking chamber, or in which an auxiliary heater for heating a catalyst body and a catalyst body are mounted.

[0003]

The smoke emitted from the conventional fish roaster varies greatly depending on the type and shape of the fish to be cooked and the amount of smoke generated is not constant, and contains a large amount of oil mist. If only the catalyst is attached to the exhaust hole, the residual heat during cooking is used, so the temperature cannot be quickly raised to the temperature range where the purification performance is exhibited, and oil mist accumulates inside the catalyst. As a result, it is difficult to sufficiently decompose the smoke and odor that are generated due to deterioration of performance and clogging. In addition, in the case where the auxiliary heater for heating the catalyst body and the catalyst body next to the heater body are mounted, the purification performance of the portion where the radiation of the auxiliary heater hits the catalyst body is good,
The oil mist is burned on the surface of the catalyst to deposit ash, which covers the surface of the catalyst, thus lowering the purification activity.

The present invention is intended to solve the problems of such a conventional structure, and to provide a fish roaster capable of preventing the deterioration of the purification ability without allowing the oil mist contained in smoke to reach the catalytic body. It is intended to be provided. Another object is to provide a fish roaster that reduces exhaust resistance and improves the effect of the first purpose. Further, it is another object of the present invention to provide a fish roaster as a heater, which can increase the amount of heat radiation to increase the temperature of the catalyst body more quickly.

[0005]

In order to solve the above problems, one means of the present invention is to form a fish roaster by mounting a heater having a porous metal arranged on the outer peripheral portion and a catalyst body in the exhaust passage. is there.

Another means is to arrange the porous metal so as to be spaced from the heater and to be in contact with oily smoke passing through the exhaust path without leakage.

Another means is to provide an expanded metal having a large exhaust effect as a porous metal to form a fish roaster.

As another means, the heater is a fish roaster in which a heating wire is arranged in the crystallization glass tube.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is a fish roaster equipped with a heater in which a porous metal is arranged in the outer peripheral portion in the exhaust passage and a catalyst body. Therefore, oil mist contained in smoke is heated by the heater. It is collected by filtration with a porous metal placed on the outer periphery and burned off by the heat of the heater, and the distribution generated by this is made into a fine powder, passes through the inside of the catalyst with no adhesion to the catalyst, and is discharged to the outside of the system. be able to. Further, by burning a considerable part of smoke, the smoke component can be reduced, and the purification load on the catalyst can be reduced, so that complete smokeless and odorless can be achieved.

According to the second aspect of the present invention, since the porous metal is provided so as to be spaced apart from the heater and arranged so as to come into contact with the oil smoke passing through the exhaust passage without leaking, the heater is used for the oil smoke and the charcoal-based food of the cooked food. It is possible to purify the oil smoke without any leakage and the like.

According to the third aspect of the present invention, since the porous metal is an expanded metal, the air permeability is improved, the collecting effect of oil mist is improved, and the combustion ash is surely miniaturized, and the exhaust gas is discharged to the catalyst body. By smoothing the supply of smoke, it is possible to further promote smokelessness and odorlessness.

In the invention of claim 4, since the heater is provided with a heating wire in the crystallized glass tube, the so-called glass tube heater is used to increase the generation of heat radiation amount and to increase the temperature and effect of the expanded metal. By supplying the heat to the catalytic body, it is possible to achieve smokeless and odorless that can quickly respond to the generation of smoke.

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In FIG. 1, 1 is a heating cooker main body, 2 is a cooking chamber, and a heating element 3 is provided inside the cooking chamber.
The receiving net 4 and the cooked food 5 are arranged, and the door 6 blocks the outside air. An exhaust hole 7 is provided in the upper part of the cooking chamber 2, and a heater 10 in which a porous metal 9 is arranged in an outer peripheral portion inside an exhaust path 8 and a catalyst body 11 on the exhaust hole 12 side in the exhaust path 8 with respect to the heater 10. I am wearing. FIG. 2 shows a perspective view of a main part around the heater 10, the porous metal 9, and the catalyst body 11 housed in the exhaust path. The porous metal 9 is arranged so as to surround the heater 10 with a space therebetween, and is arranged so that all the smoke passing through the exhaust path comes into contact with the porous metal 9. Specifically, the upper and lower walls forming the exhaust path 8 are in contact with the porous metal 9.

The operation of this embodiment will be described below. When a cooking start switch (not shown) is pressed, the heating element 3 and the heater 10 are energized. As a result, the cooked food 5 set on the upper part of the receiving net 4 is heated by the heat generated by the heating element 3, and a large amount of smoke containing oil mist is generated with the passage of time, and the door 6 is shielded from the outside air, so that cooking is performed. Room 2
After passing through the exhaust hole 7 provided in the upper part of the above, the porous metal 9 mounted inside the exhaust path 8 passes.

In addition, from the start of energization by the heater 10 until the smoke containing oil mist passes through the exhaust hole 7 and passes through the porous metal 9 mounted inside the exhaust passage 8, While being heated to a high temperature by the heater 10, the catalytic body is also preheated to a state where the purifying ability can be exhibited. Since the porous metal 9 is arranged in the outer peripheral portion with a gap with the heater 10, the porous metal 9 is heated to a high temperature in a state where there is a space through which smoke can be filtered while being filtered by the porous metal 9, which contains an oil mist. When smoke passes, the collection and combustion of oil mist and the combustion of smoke proceed rapidly. Since the smoke containing the oil mist sequentially flows in, the unburned smoke and the fine powder of the ash burned by the oil mist flow into the catalyst body 11, and the unburned smoke together with the completely purified exhaust gas, The ash content burned by the oil mist is discharged to the outside through the 12 exhaust holes.

A cooking experiment was carried out using the fish roaster of the present embodiment. In this experiment, three saury (450 ± 10 g) were actually cooked for 15 minutes, and the smoke discharged from the exhaust hole 12 and the state of the odor were measured by a hydrocarbon concentration measuring instrument manufactured by Shimadzu Corporation ( It was measured by MHC-2), and the presence or absence of smoke generation was visually confirmed. The odor was collected in a 1-liter odor bag, the judgment was carried out by 5 people, and the average thereof was obtained and evaluated. The evaluation was made into 5 levels, 1 being "large", 2 being "clearly", 3 being "slightly", 4 being "almost no" and 5 being "not at all".

The comparative example is a fish roaster in which the porous metal is not arranged on the outer peripheral portion of the heater in the exhaust passage. The results of cooking experiments are shown in (Table 1). In each case, the amount of passing exhaust gas (catalyst space velocity) per unit time with respect to the catalyst volume was 15,000 / hr. To grasp the condition where the eyes of the catalyst are clogged
After repeating the operation a number of times, the state was visually determined.

[0018]

[Table 1]

As shown in (Table 1), an expanded metal having a plate thickness of 1 mm of porous nickel-chromium foam metal, S-thickness = 1.5 mm, L-thickness = 3.0 mm is used as a porous metal in the exhaust passage. The fish roaster of the present invention in which the catalyst body is mounted by combining a sheathed heater and a glass chib heater as a heater is clearly smokeless and odorless in comparison with the comparative example, and the eyes of the catalyst are not generated at all. Shows the state without.

In the present embodiment, the case where the smoke is naturally exhausted has been described, but when the set position of the exhaust hole is a position not suitable for natural exhaust, the same result can be obtained even if the suction method is adopted. .

[0021]

As described above, according to the first aspect of the present invention, the heater in which the porous metal is arranged on the outer peripheral portion and the catalyst body are attached to the exhaust path, so that the oil mist in the smoke is made of the porous metal. By filtering and burning, it is possible to realize a fish roaster that can prevent deterioration of catalyst purification performance without causing clogging of the catalyst body due to distribution generated by combustion and can realize smokeless and odorless for a long period of time. is there.

According to the second aspect of the present invention, since the porous metal is provided so as to be spaced apart from the heater and arranged so as to come into contact with oily smoke or the like passing through the exhaust passage without leakage, the heater is provided with oily smoke or cooked food. No carbides are attached,
Moreover, the oil smoke can be purified without leakage.

According to the third aspect of the invention, since the smooth exhaust can be realized by using the expanded metal, more smokeless and odorless can be realized for a long period of time.

According to the invention described in claim 4, by using a heater having a heating wire in the crystallization glass tube as the heater, the smokeless and odorless equivalent to the above can be realized with a smaller power consumption. Can provide fish roaster.

[Brief description of the drawings]

FIG. 1 is a sectional view of a fish roaster according to an embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the fish roaster.

[Explanation of symbols]

 2 Cooking chamber 8 Exhaust guide 9 Porous metal 10 Heater 11 Catalyst body 12 Exhaust hole

Claims (4)

[Claims] 1. A fish roaster comprising a heater and a heater, in which a porous metal is arranged in the outer peripheral portion, and an exhaust gas passage for discharging oily smoke and the like in the cooking cabinet to the outside of the main body. 2. The fish roaster according to claim 1, wherein the porous metal is provided so as to be spaced apart from the heater and arranged so as to come into contact with oily smoke passing through the exhaust passage without leakage. 3. The fish roaster according to claim 1, wherein the porous metal is an expanded metal. 4. The fish roaster according to any one of claims 1 to 3, wherein the heater is provided with a heating wire in the crystallized glass tube.