JPS5837425A - Exhaust apparatus for cooking - Google Patents

Abstract

PURPOSE:To prevent heated oil particles generated at cooking from adhering onto the inner surface of a duct and as well as protect cooking flame from entering the duct by a structure wherein a radiator plate is arranged at a suction port and as well as the discharge area of a blower is made larger than the cross-sectional area of a duct. CONSTITUTION:Cooking exhaust is sucked in a suction port 4 arranged between the surmounting part 3 just behind a range 2 and a wall and exhausted. A duct 8 is made in such a form as to go downward and the cross-sectional area of the duct 8 is made smaller than the discharge area of the blower 9. When the exhaust blower is started, exhaust gas is past through the duct 8 in about 3-10sec, in other words, discharged in the time shorter than the time of 15sec, in which heated oil particles generated at cooking turn to be particles with adhesion and consequently no adhesion of oil particles onto the inner surface of the duct 8 occurs. In addition, due to the radiator plate provided at the suction port 4, flame produced at cooking is cooled with a metal grill 7 of the radiator plate at the suction port 4 and prevented from entering the duct 8. Furthermore, because the pressure within the duct 8 is negative, exhaust gas expands itself, resulting in causing its temperature to lower. In such a manner as mentioned above, the interior of the duct 8 is kept clean at all times, resulting in being safe from fire accident.

Description

[Detailed description of the invention] A nine rising portion is provided, the rising portion is in contact with a wall, a forward airflow guiding plate is provided on the same wall, the guiding plate is extended above the cooking table, and the rising portion is in contact with a wall. In the cooking device, which has an air intake port opened in the air intake port, and a forced exhaust blower connected to the air intake port via a duct, the exhaust area of the exhaust blower is larger than the opening area of the air intake port and the intermediate surface of the duct. Form into a large size,
The present invention also relates to a cooking exhaust device having a heat radiating plate installed in the air intake port, and the object thereof is to increase the wind speed inside the duct and to prevent flames from entering the inside of the duct.

To explain the embodiment of the present invention shown in the drawings, a gas range 2 is disposed or disposed on the upper surface of the cooking table 1, a stainless steel rising part 3 is formed at the rear of the cooking table 1, and the upper surface of the rising part 3 is The intake port 4 is provided to be inclined downward toward the range 2 side, and the upper surface of the rising portion 3 is also inclined to the same plane as the above-mentioned inclination.

A microwave oven 2 is attached to a wall 5 that stands upright in contact with the rear part of this rising part 3.
A cooking device is formed by providing a forward airflow guide plate 6 extending upwardly. A heat dissipation plate 7 made of a horizontal lattice-shaped stainless steel plate is installed on the suction port 4, and a tallite 8 is connected to the suction port 4, so that the open area of the suction port 40 and the duct 8 are connected to the suction port 4.
The exhaust area of the forced exhaust blower 9 provided at the terminal end of the tallit 8 is made larger than the opening area of the intake port 4 and the intermediate area of the duct 8. To do this, the outlet 10 of the duct 8 is formed to be larger than the inlet of the duct 8, and the airflow passage time from the intake port 4 to the exhaust port 14 is approximately 15 seconds or less, for example, 3 to 5 seconds. This defines the dimensions of the blower 9 and the strength of the blower 9. In addition, the one indicated by 11 in the figure is range 2.
12 is the smoke cylinder of the skylight 11, and 13 is its opening.

Therefore, when the exhaust blower 9 is started, the outlet 10 of the duct 8
The interior becomes a vacuum or negative pressure, and an airflow toward the outlet 10 is generated in the middle part of the tallite 8, which has an area smaller than the exhaust area of the outlet 10, and in the intake port 4, and the air flows from the intake port 4 through the tallite 8 to the exhaust port 14. The heated oil particles in the flue gas 15 are discharged outside without adhering to the inner surface of the duct 8, the inward direction of the outlet 10, and the exhaust blower 9, and the airflow temperature in the duct 8 is lower than the above-mentioned fast airflow. Because of the negative pressure inside the duct 8, the suction gas is diluted (expanded*) without accumulating in the duct 8 due to its passage, and the expansion heat is removed and the airflow temperature in the duct reaches approximately 40°C. descend. To improve the flavor of yakiniku, when wine is poured into the yakiniku in the 7 frying pan on the microwave oven 2, flames are generated, and flames are generated when the oil in frying is ignited, but this flame is sent to the suction port 4. When being sucked in, the heat of the flame touches the heat radiating plate 7 and is conducted to and radiated by the plate 7, so that the flame disappears after the heat radiating plate 7 and does not enter the duct 8.

Conventionally, heated oil particles generated during cooking undergo a chemical reaction with water vapor after about 15 seconds has passed, turning into sticky particles that stick to the inside of the duct, and the flames generated in the oil in the frying pan on the microwave, grilled meat, etc. There was a defect in the duct that posed a risk of suction.

Since the present invention is configured as described above, the intake 04 and the duct 8
In addition, there is no risk of oil particles or other small dust adhering to the outlet 10 and the exhaust blower 9, etc., so the exhaust system can be kept extremely clean, and there is no risk of flames being sucked into the duct 8, resulting in a risk of fire or the like. can be prevented.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a cooking table equipped with the exhaust device of the present invention, FIG. 2 is a longitudinal sectional view of the same exhaust device, FIG. 3 is a side view of a heat sink, and FIG. 4 is a perspective view of the exhaust device. It is a diagram. 2...Microwave, 1...Cooking table, 3...Rising section, 5...
Wall, 6. Forward airflow guide plate, 4. Intake port, 8. Duct, 9. Forced exhaust blower 17. Heat sink. Patent applicant Ruji Kawasaki

Claims (2)

[Claims] (1) A rising part 3 is provided at the rear of the cooking table 1 on which the range 2 is arranged, and the rising part 3 is in contact with a wall 5. Similarly, a forward airflow guide plate 6 is provided on the wall 5, and the guide plate 6 is extended above the cooking table 1, an intake port 4 is opened in the rising portion 3, and a forced exhaust blower is connected to the intake port 4 via a duct 8.
In the cooking equipment FIt formed by connecting the intake port 4
An exhaust device for cooking, in which the exhaust area of the exhaust blower 9 is larger than the opening area of the exhaust blower and the intermediate area of the duct 8, and a heat radiating plate 7 is installed over the intake port 4. (2) The cooking exhaust device according to claim 1, wherein the heat dissipation plate 7 is a lattice-shaped metal plate.