JPH04309733A - smoke evacuation device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a smoke evacuation device for discharging oily smoke generated during cooking from a cooking device used in a kitchen or the like.

0002

2. Description of the Related Art As shown in FIG. 2, a conventional smoke evacuation device of this type has a hood 4 having an inlet 3 that opens at one end to the side of a burner 2 of a cooking device 1, and the other end to a house 5. It consists of a smoke exhaust duct 8 that penetrates the wall surface and faces the outdoors, and has an exhaust port 7 in which a discharge blower 6 is disposed, and an inlet for separating oil contained in oil smoke. A removable grease filter 9 is provided in the hood 4 near the hood 3.

[0003] In the above-mentioned smoke exhaust device, by operating the exhaust blower 6, a flow of air is generated from the intake port 3 to the exhaust port 7, and the oil smoke generated along with the air flow sucked from the intake port 3 is exhausted. The smoke comes to be sucked into the smoke duct 8. On the other hand, the oil contained in the oil smoke adheres to a grease filter 9 provided near the suction port 3 and is separated, and then purified air is discharged outdoors from the discharge port 7. Note that 10 is a cooking utensil placed on the burner 2, and solid arrows indicate the flow of air by the exhaust blower.

0004

[Problems to be Solved by the Invention] However, in the conventional configuration described above, in order to increase the efficiency of collecting oil smoke, it is necessary to lower the position of the inlet port 3 and to provide a large amount of intake air. Not only does a high-capacity blower become necessary, but the flame of burner 2 is caused by the intake air flow to the inlet 3.
There is a problem in that the heat is extremely biased in the direction, resulting in an extreme decrease in thermal efficiency or uneven baking.

[0005] The present invention solves the above problems, and can effectively collect oil smoke etc. with a small amount of intake air.
The purpose of this is to suppress the flame from shifting due to the intake air flow, thereby suppressing a decrease in thermal efficiency.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the smoke evacuation device of the present invention has an inlet opening facing the burner of a cooker at one end, and a wall surface at the other end. It consists of a smoke exhaust duct that extends through the smoke exhaust duct and has an exhaust port that faces the outdoors and is equipped with an exhaust blower, and has an auxiliary intake port provided below the intake port.

[0007]

[Operation] With the above configuration, the present invention forms a flow from the front of the suction port to the auxiliary suction port, thereby suppressing the rise of generated oil smoke and making it possible to effectively suck it into the suction port. .

[0008]

Embodiment An embodiment of the present invention will be described below with reference to FIG. That is, as shown in FIG. 1, the smoke evacuation device has an inlet 13 at one end facing the burner 12 of the cooking device 11, and the other end extends through a wall 14 to face the outdoors. It also comprises a smoke exhaust duct 17 having an exhaust port 16 in which an exhaust blower 15 is disposed. An auxiliary suction port 18 is provided below the suction port 13, the opening area of which is set so that the amount of air sucked is approximately 10% or less of the amount of air sucked through the suction port 13. A removable grease filter 19 is provided in the smoke exhaust duct 17 near the suction port 13 in order to separate the oil contained in the oil smoke. Here, 20 is a cooking utensil such as a wok placed on the burner 12, and the solid arrow indicates the exhaust blower 1.
5 shows the air flow, and the broken line arrow shows the flow of oil smoke, etc.

[0009] In the above configuration, the present smoke evacuation device has burner 1
2 and start cooking, at the same time, the exhaust blower 15
is operated to draw air into the smoke exhaust duct 17 from the suction port 13 and the auxiliary suction port 18. On the other hand, oil smoke and steam generated by the cooking utensil 20, or combustion gas generated by the burner 12, etc., flow upward as a rising air current due to heat.
The air is drawn into the suction port 13 by the suction air flow into the suction port 13. The suction force is increased by suctioning a small amount of air from the auxiliary suction port 18 to prevent excessive flow from occurring in front of the lower wall of the suction port 13, and at the same time to increase the flow from the front of the suction port 13 toward the auxiliary suction port 18. be. The oil component sucked into the smoke exhaust duct 17 here adheres to a grease filter 19 provided inside the smoke exhaust duct 17 and is removed.

According to the configuration of this embodiment, it is possible to prevent the generation of excessive flow on the front surface that impairs the suction force, so the position of the suction port 13 can be set relatively high, and the auxiliary suction can be carried out from the front of the suction port 13. The suction force at the suction port 13 can be increased by the flow toward the port 18 . Therefore, oil smoke can be effectively collected with a small amount of suction air.
This has the effect of suppressing a decrease in combustion efficiency and the occurrence of uneven grilling.

[0011]

As explained above, the smoke evacuation device of the present invention can effectively collect oil smoke with a small amount of suction air by providing the auxiliary suction port at the lower part of the suction port. In other words, it is possible to suppress a decrease in thermal efficiency and the occurrence of uneven burning, and at the same time, it is possible to use a blower with a small capacity, so there is an effect that the smoke evacuation device can be made smaller and have lower noise levels.

[Brief explanation of drawings]

[Fig. 1] A cross-sectional view of a smoke evacuation device according to an embodiment of the present invention.

[Figure 2]
Cross-sectional view of a conventional smoke evacuation device

[Explanation of symbols]

11 Cooker 12 Burner 13 Inlet 14 Wall surface 15　Discharge blower 16 Discharge port 17 Smoke exhaust duct 18 Auxiliary intake port

Claims (1)

[Claims] Claim 1: One end has an inlet opening facing the burner of the cooking device, and the other end has an outlet that penetrates the wall surface and faces the outdoors, and has an exhaust blower installed. A smoke exhaust device comprising a smoke exhaust duct and having an auxiliary intake port below the intake port.