JPH0933086A - Cooking exhaust device and installation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance exhaust efficiency of a cooking exhaust device in a high- rise condominium or a detached dwelling house. SOLUTION: A kitchen worktop 2 is provided on a floor surface 1 where a fume collection hood 4 is provided directly over a range 3 of the worktop 2. An exhaust blower 6 is connected to the upper part of the hood 4 by way of an air duct 5 and a suction opening 5' on the lower end of the air duct 5 is connected to an exhaust air outer 4' on the top of the hood 4 while a discharge opening 5" on the upper end of the air duct 5 is connected to a suction opening 6' of an exhaust blower 6 where the inside diameter of the air duct 5 is larger than the inside diameters of the lower end suction opening 5' and the upper end suction opening 5" and this device is formed so as to exhaust outdoors the cooking fumes generated by the range 3 by driving the exhaust air blower 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking exhaust device and a method for installing the same.

[0002]

2. Description of the Related Art In a conventional exhaust system for cooking in a high-rise house, a smoke collecting hood is provided directly above a gas range of a cooking table, and an exhaust blower is provided inside the smoke collecting hood, so that the exhaust is exhausted from the entire lower edge of the hood. There was a problem that it was difficult to suck into the exhaust blower from the area.

In order to solve this, it is necessary to increase the capacity of the exhaust blower, or by providing a device such that smoke is convected in the hood under the suction port of the exhaust blower, a suction window at the lower edge of the hood is provided. It was necessary to suck the cooking smoke evenly from the entire surface.

Therefore, there is a problem that the suction force of the exhaust blower is reduced and the smoke cannot be sufficiently sucked.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to obtain a cooking exhaust system having a high smoke collecting efficiency and a high safety in an exhaust system for a kitchen (kitchen) in a high-rise house or a detached house.

Another object of the present invention is to replace the existing cooking exhaust device with the above exhaust device simply and quickly.

[0007]

In order to achieve the above object, the present invention provides a smoke collecting hood provided directly above a range of a cooking table, and an exhaust blower connected to the hood above the hood through an empty box. The bottom suction port of the empty box is connected to the top discharge port of the hood, the top discharge port of the empty box is connected to the suction port of the exhaust blower, and the inner diameter of the box is the bottom suction port and the top discharge port. Exhaust device for cooking that is larger than the inner diameter of the outlet and is formed so that the cooking smoke from the above range is discharged to the outside by the above exhaust blower Exhaust device for cooking according to the above invention. Exhaust device for cooking according to the above-mentioned first or second invention, in which an ascending smoke rectifying guide plate is arranged inside a smoke collecting hood. And the top outlet of the hood above The cooking exhaust device according to any one of the first to third inventions, wherein the upper end edge of the connecting cylinder is projected into the hollow box, and an oil sump is formed between the protruding portion and the inner surface of the hollow box. The first opening is formed by covering the upper opening of the cylinder with a flameproof net.
-Exhaust device for cooking according to any one of the fourth invention, when replacing the exhaust device for cooking according to any one of the first to fifth inventions with the existing exhaust device for cooking, exhaust air to the existing exhaust pipe above the ceiling. It is configured by the method of installing the cooking exhaust system that connects the discharge port of the blower.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION When a range on a cooking table provided on the floor of a cooking chamber is ignited and cooking is performed by a pot, a grill, etc. through Gotoku, steam, oil particles, smoke of a burning product, etc. Generically referred to as smoke).

When the exhaust blower is started before the above-mentioned cooking work, the air in the empty chamber (empty box) is sucked through the downward suction port of the blower to reduce the pressure in the empty chamber (empty box), and this is placed under the ceiling. Can be discharged outdoors from the trachea.

Since the inner diameter of the empty box is larger than the inner diameters of the lower end suction port and the upper end discharge port of the empty box, the air in the inner peripheral portion of the empty box is guided by the air flow from the lower end suction port to the upper end discharge port. The vacuum state is maintained and the vacuum or reduced pressure in the inner peripheral portion of the casing is maintained by suction from the exhaust blower connected to the upper end discharge port, and the suction force at the lower end suction port is significantly increased.

Further, the rising smoke rectifying guide plate provided inside the smoke collecting hood urges the rising smoke by the suction force.

[0012] The cooking smoke or flame is touched by the rising smoke rectifying guide plate and heat is taken away so that no heat is accumulated or the flame is extinguished. Also, when passing through the flameproof net 22, the heat is taken away, the residual flame disappears, the heat is no longer accumulated, and the scattered oil particles descend into the oil sump a and are prevented from flowing down or rising.

Further, the existing cooking exhaust device provided in the cooking chamber of each door in the existing high-rise house can be replaced with the cooking exhaust device of the present invention. In that case, the discharge port of the exhaust blower of the present invention is connected to the existing ceiling exhaust pipe.

[0014]

EXAMPLE A cooking table 2 is provided in contact with a wall 9 on a floor surface 1 of a cooking room (kitchen) in a high-rise house or a detached house. A gas or electric range 3 is provided on the upper surface of the cooking table 2, a smoke collecting hood 4 is provided directly above the cooking range 2, and hanging cabinets are provided on both left and right sides of the hood 4. Therefore, an upright covering plate 10 is provided in front of the hood 4 in the same upright plane as the hanging cabinet to arrange the appearance of the kitchen (FIGS. 1 to 6).

The smoke collecting hood 4 is a modified truncated pyramid cylinder, and ascending smoke rectifying guide plates 7 toward the top discharge port 4'are symmetrically arranged in the left-right direction, and the height of the central metal rectifying guide plate 7 is increased. Is the highest and becomes lower toward the left and right, and it is made of stainless steel and has an endothermic effect. A lower end suction port 5'of a cylindrical or rectangular empty box 5 having a large inner diameter is fitted and connected to the top discharge port 4 ', and a suction port 6'of an exhaust blower 6 is connected to an upper end discharge port 5 "of the empty box 5. Fitting connection (FIGS. 1 and 3 to 9). As shown in FIG. 2, the suction port 6 ′ and the upper end discharge port 5 ″ are connected via the connecting pipe 10a, and the connecting pipe 10a is expanded and contracted. A universal fitting tube or bellows tube can be used. This is because the exhaust blower 6 is slightly lifted between the boundary slab 11 with the upper floor and the suspended ceiling 12, and the exhaust blower 6 and the above-ceiling exhaust pipe 8 are linearly connected.

A sirocco fan or the like is used for the exhaust blower 6 thus constructed, and its discharge port 6 "is linearly connected to a new or existing above-ceiling exhaust pipe 8 (FIG. 2) or by a bellows pipe 13. It is bent and connected (FIGS. 1 and 3 to 5) In the detached kitchen, the discharge port 6 ″ is opened in the existing or new ventilation window 14 as shown in FIG.

The top discharge port 4'of the smoke collecting hood 4 and the empty box 5
The lower end suction port 5'is not square (FIGS. 7 and 8), a short cylindrical connecting tube 5a is connected to the upper surface circular hole of the lower end suction port 5 ', and the connecting tube 5a is connected to the lower surface of the empty box 5. The upper end edge 5′a of the connecting cylinder 5a is projected into the empty box 5 to form the empty box 5 and the connecting cylinder 5a as one body, and the protruding upper end edge 5′a and the empty box 5 are inserted. A donut-shaped oil sump a surrounded by the lower inner peripheral surface and the lower plate upper surface of the empty box 5 is formed.

The lower edge of the dome-shaped metal flame net 22 is fitted to the outer surface of the upper edge 5'a.

Reference numeral 15 in the drawing denotes a motor of the exhaust blower 6, 16 is a sirocco rotary blade, 17 is an outer wall, 18 is an outer wall opening of the ceiling exhaust pipe 8, 19 is a cover of the outer wall opening 18, and 20 is A hanger, 21 is a smoke guide plate.

[0020]

As described above, according to the present invention, an empty box is interposed between the smoke collecting hood directly above the cooking table and the exhaust blower directly above the cooking table, and the inner diameter of the empty box is the connecting portion between the upper and lower ends of the empty box. Since the inner diameter of the hood is larger than the inner diameter of the hood, a depressurizing action is exerted in the empty box, and the suction force of the hood can be enhanced.

Further, since the rising smoke rectifying guide plates are arranged side by side inside the hood, the rising smoke is urged, and the cooking smoke easily gathers from the lower edge of the hood to the central portion, and the smoke can be discharged well on the range. Without it, it has the effect of extinguishing the heat of cooking smoke or accidental flame.

Further, rising oil particles are trapped in the oil sump,
The blower and exhaust pipe can be kept clean,
In addition, the flame net can further remove the heat of cooking smoke or rising flame to sufficiently extinguish the flame.

Further, when the existing cooking exhaust system is replaced with the cooking exhaust system of the present invention, there is an effect that the existing roof exhaust pipe can be utilized and the construction can be completed quickly.

[Brief description of drawings]

FIG. 1 is a side view showing a cooking exhaust device of the present invention.

FIG. 2 is a side view showing a state in which the exhaust pipe is connected to the ceiling above a straight line.

FIG. 3 is a side view of an S-shaped connection state.

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a vertical cross-sectional view taken along the line AA of FIG.

FIG. 6 is a side view showing a state of being installed in a detached house.

FIG. 7 is a perspective view of an exhaust device using a circular empty box.

FIG. 8 is an exploded perspective view of the device.

9 is a vertical sectional view of FIG. 7. FIG.

[Explanation of symbols]

 1 Floor 2 Cooktop 3 Range 4 Smoke-collecting hood 4'Top discharge port 5 Empty box 5'Lower end suction port 5 "Top discharge port 5a Connection tube 5'a Top edge a Oil sump 6 Exhaust blower 6'Suction port 6" Discharge port 7 Ascending smoke rectification guide plate 8 In-ceiling exhaust pipe 22 Flameproof net

Claims (6)

[Claims] 1. A smoke collecting hood provided directly above a range of a cooking table, and an exhaust blower connected to the hood above the hood via an empty box, and a lower end suction port of the empty box is provided for the hood. It is connected to the top discharge port, the upper discharge port of the empty box is connected to the suction port of the exhaust blower, the inner diameter of the empty box is larger than the inner diameters of the lower suction port and the upper discharge port, and the exhaust blower described above An exhaust device for cooking that is designed to discharge cooking smoke from a stove outdoors. 2. The exhaust device for cooking according to claim 1, wherein a cooking table is provided on the floor surface, and the smoke collecting hood is provided directly above the range of the cooking table. 3. The cooking exhaust device according to claim 1, wherein an ascending smoke rectifying guide plate is provided in parallel inside the smoke collecting hood. 4. The hollow box is cylindrical or rectangular, and the upper end edge of a connecting cylinder between the lower end suction port and the top discharge port of the hood is projected into the hollow box, and the projecting portion and the inner surface of the hollow box are connected. The exhaust system for cooking according to any one of claims (1) to (3), wherein an oil sump is formed between them. 5. The cooking exhaust device according to claim 1, wherein the upper end opening of the connecting cylinder is covered with a flameproof net. 6. When replacing the cooking exhaust device according to any one of claims 1 to 5 with an existing cooking exhaust device, an exhaust port of an exhaust blower is connected to an existing ceiling exhaust pipe. How to install the exhaust system for cooking.