JPH0894140A - Air intake and exhaust system for kitchen - Google Patents

Abstract

PURPOSE: To prevent scattering of exhaust gas, oil mist in the case of cooking from being scattered in a kitchen by dividing an air supply unit to an inner air supply unit for supplying the outdoor air into the kitchen and an outer air supply unit for supplying air conditioned air into the kitchen. CONSTITUTION: An air supply unit 3 is disposed at the outside of an exhaust hood 2. The unit 3 is divided into an inner air supply unit 4 disposed at the side near the hood 2 side to supply the outdoor air into a kitchen 9, and an outer air supply unit 5 disposed at the side separated from the hood 2 side to supply air conditioned air into the kitchen 9. Thus, when the exhaust air generated in the case of cooking by a cooking heat source 1 is exhausted from the hood 2, the outdoor air is supplied from the unit 4 into the kitchen 9 thereby to reduce the quantity of the air conditioned air in the room as a role of one type of air curtain together with the exhaust air can be reduced. Further, the scattering of the exhaust gas, the oil mist generated in the case of cooking by the heat source 1 in the kitchen 9 can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intake / exhaust device for a kitchen.

[0002]

2. Description of the Related Art Conventionally, an exhaust hood is arranged above a cooking heat source in a kitchen so that exhaust gas generated when cooking is performed by the cooking heat source is exhausted from the exhaust hood. However, when the air is exhausted from the exhaust hood, the air-conditioned air in the room is also discharged together with the ascending airflow from the heat source, so there was a lot of energy loss in air conditioning.

Therefore, the exhaust hood 2 is arranged above the cooking heat source 1 in the kitchen 9 according to JP-A-54-147647 and JP-A-4-292735.
It has been proposed that the air supply unit 3 is arranged at a position outside the exhaust hood 2, and when the air is exhausted by the exhaust hood 2, the outside air outside the air supply unit 3 is simultaneously blown out into the kitchen (FIG. 5). reference). In such a conventional example, the air supply unit 3
The outside air ejected from the tank serves as a kind of air curtain, and the amount of the air-conditioned air in the kitchen 9 discharged to the outside together with the exhaust air can be reduced.

However, a cook standing and working in front of the cooking heat source 1 will work in a position substantially below the outside air blown from the air supply unit 3, and the heat from the cooking heat source 1 in front of the cook will be consumed. In addition to being affected, it is necessary to work in an environment where the outside air blown from above hits. Then, for example, in the summer season, the outside air having a high temperature directly hits the cook, and there is a problem that the working environment is still bad due to the influence of this and the heat from the heat source for cooking ahead. Further, in winter, there is a problem in that the outside air having a low outdoor temperature directly hits the cook. In addition, all the outside air blown from the air supply unit 3 into the kitchen 9 is not exhausted from the exhaust hood 2, and a part of the outside air is mixed with the air-conditioned air in the kitchen, and the indoor temperature is high in the summer, for example. However, since the indoor temperature is lowered in the winter, there is a problem that a large capacity air conditioning device is required for air conditioning the kitchen.

Therefore, in the course of reaching the present invention, the present inventor considered that the outside air should be air-conditioned and blown out from the air supply section into the kitchen when the outside air is blown out from the air supply section into the kitchen.
In this way, it has been found that the cook working while standing in front of the heat source for cooking is exposed to the conditioned air and can work in a comfortable environment. However, a part of the conditioned air ejected from the air supply unit short-passes to the exhaust hood side, which wastefully discharges the conditioned air together with the exhaust air, resulting in a large energy loss. there were.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to save energy and to stand in front of a heat source for cooking. A kitchen intake / exhaust device that allows the cook to work in a comfortable state, and that exhausts the exhaust gas and oil mist generated when cooking with a heat source for cooking to prevent it from scattering in the kitchen. To provide.

[0007]

In order to solve the problems of the above-mentioned conventional examples and to achieve the object of the present invention, an intake / exhaust device for a kitchen according to the present invention is provided above the cooking heat source 1 in the kitchen 9. The exhaust hood 2 is disposed, the air supply unit 3 is disposed outside the exhaust hood 2, and the air supply unit 3 is located on the side close to the exhaust hood 2 for supplying outside air into the kitchen 9. It is characterized by being divided into an inner air supply portion 4 and an outer air supply portion 5 which is located on the side away from the exhaust hood 2 side and which supplies conditioned air into the kitchen 9. .

It is also preferable to dispose the air supply portions 3 on both sides of the exhaust hood 2 or on the entire outer peripheral portion. It is also preferable to provide cooling means or heating means 6 in the outer air supply section 5. It is also preferable to branch the leeward side of the air supply passage 8 provided with the air supply fan 7 to connect one to the inner air supply unit 4 and the other to the outer air supply unit 5.

[0009]

According to the present invention having the above structure, when exhaust gas generated when cooking with the cooking heat source 1 is exhausted from the exhaust hood 2, the outside air is supplied from the air supply section 3 located outside the exhaust hood 2 to the kitchen 9. By supplying the air to the inside, it serves as a kind of air curtain, and the amount of conditioned air in the room discharged to the outside together with the exhaust air can be reduced. Moreover, due to the air curtain effect, exhaust gas and oil mist generated when cooking with the cooking heat source 1 are prevented from scattering in the kitchen 9. Moreover, when the outside air is supplied from the air supply unit 3 into the kitchen 9,
The outside air is supplied from the inside air supply portion 4 located near the exhaust hood 2 side, and the outside air is air-conditioned and supplied from the outside air supply portion 5 located away from the exhaust hood 2 side. The conditioned air supplied from the air supply unit 5 is the exhaust hood 2.
Without passing a short path to the side, it flows to the lower front of the cooking heat source 1, and the cook working while standing in front of the cooking heat source 1 can work in a comfortable state. In this case, Outside air is supplied from the air supply unit 4, and outside air supply unit 5 is supplied.
By supplying conditioned air from the above, the conditioned air does not short pass to the exhaust hood 2 as described above, energy loss is reduced, and it is not necessary to increase the capacity of the air conditioner. The number of outdoor units installed can be reduced.

Further, by disposing the air supply portions 3 on both sides or the entire outer peripheral portion of the exhaust hood 2, when the cooking heat source 1 is not disposed along the wall 11 of the kitchen 9, that is, in the kitchen 9. This is applicable when it is arranged at a position apart from the wall 11. Further, since the cooling means or the heating means 6 is provided in the outer air supply part 5, the cooling means or the heating means 6 is incorporated in the range hood unit in which the air supply part 3 is provided in the exhaust hood 2, It can be installed as a unit and the installation can be simplified.

An air supply passage 8 having a fan 7 for air supply
When the outside air is supplied to the inner air supply unit 4 and the outer air supply unit 5 by branching the leeward side and connecting one to the inner air supply unit 4 and the other to the outer air supply unit 5. This simplifies the configuration of the piping for the purpose.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.
FIG. 1 shows an embodiment of the present invention. In the figure, reference numeral 1 denotes a cooking heat source such as a range installed in a kitchen 9, and a range hood device 10 is arranged above the cooking heat source 1 to form a unit as a whole. The range hood device 10 is provided with an exhaust hood 2 and an air supply unit 3. In the embodiment of FIG. 1, the heat source 1 for cooking is arranged on the side of the wall 11 of the kitchen 9 so that it is arranged side by side. Therefore, the range hood device 10 is also arranged on the side of the wall 11 side by side.
The exhaust hood 2 provided at 0 is located on the wall 11 side.

A chamber 12 is provided in the exhaust hood 2, an exhaust inlet and an exhaust outlet are provided in the chamber 12, and the grease filter 13 is detachably attached to the exhaust inlet.
Is installed. One end of the exhaust passage 14 is connected to the exhaust outlet, the other end of the exhaust passage 14 is open to the outside, and the exhaust passage 14 is provided with an exhaust fan 15.

The air supply unit 3 is provided adjacent to the outer side of the exhaust hood 2, and the air supply unit 3 is divided into an inner air supply unit 4 and an outer air supply unit 5 by a partition unit 16 and the inner side The air supply unit 4 is located near the exhaust hood 2 side, and the outer air supply unit 5 is located away from the exhaust hood 2 side. Inner air outlets 17 are provided on the lower surface and side surfaces of the inner air supply portion 4, and outer air outlets 18 are provided on the lower surface and side surfaces of the outer air supply portion 5. Air supply passages 8 are connected to the upper portions of the inner air supply unit 4 and the outer air supply unit 5, respectively.
Here, the air supply passage 8 has a common air supply passage 8a on the windward side and branched air supply passages 8b, 8 that branch off the common air supply passage 8a on the leeward side.
c, and one branch air supply passage 8b is the inner air supply unit 4
, And the other branch air supply passage 8c is connected to the upper part of the outer air supply section 5. And the common air supply passage 8a
An air supply fan 7 is provided in the. Cooling means or heating means 6 is provided in the outer air supply section 5.

Reference numeral 20 in the figure denotes an air conditioning device for air conditioning the inside of the kitchen 9. Then, when cooking with the cooking heat source 1, exhaust gas and oil mist generated at the time of cooking by operating the exhaust fan 15 are sucked into the exhaust hood 2 and discharged to the outside through the exhaust passage 14, The air supply fan 7 is operated to supply the outside air into the kitchen. In this case, the exhaust gas and the oil mist are those which are captured when passing through the grease filter 13. On the other hand, the outside air blown out from the inner air outlet 17 of the inner air supply unit 4 and the outer air outlet 18 of the outer air supply unit 5 has a flow generally indicated by an arrow in FIG. That is, the outside air blown out from the inner air outlet 17 of the inner air supply unit 4 is
As indicated by arrows a and b, the upward airflow from the heat source and the suction force from the exhaust hood 2 by the exhaust fan 15 are sucked into the exhaust hood 2 by the rising air from the heat source, and the outdoor air is exhausted together with the exhaust gas. Is discharged. At that time, the exhaust gas from the cooking heat source 1 is generated by the venturi effect of the outside air blown out from the inner outlet 17 of the inner air supply unit 4,
It is effectively sucked up by the exhaust hood 2. On the other hand, the conditioned outside air blown out from the outside air outlet 18 of the outside air supply unit 5 reaches the lower side as shown by arrows c and d in FIG. 1, and the air conditioned in front of the cooking heat source 1 is discharged. Will be flushed. Therefore, the cook M who is located in front of the heat source 1 for cooking and can perform the cooking work can perform the cooking work in a comfortable state.

Here, when the exhaust fan 15 is operated to exhaust the air to the outside, the conditioned air in the adjacent room adjacent to the kitchen 9 (for example, the guest room next to the kitchen 9 in the case of a restaurant) is in the kitchen 9. In the figure, part of the exhaust gas is sucked in as shown by arrow E and is exhausted by the exhaust fan 15 together with the exhaust gas. However, in the present invention, when the exhaust fan 15 is operated to exhaust 100% of the exhaust air to the outdoors. By operating the air supply fan 7, for example, 80% of the outside air is supplied, and for example, 40% each in the kitchen 9 from the inner air outlet 17 of the inner air supply unit 4 and the outer air outlet 18 of the outer air supply unit 5, respectively. 20% from the guest room adjacent to the kitchen 9 is set to flow into the kitchen 9. By doing so, it is not necessary to reduce the inflow amount from the guest room adjacent to the kitchen 9 and increase the capacity of the air conditioner for air conditioning the guest room side.

The air conditioner 20 is a device separate from the cooling means or the heating means 6 and can air-condition the inside of the kitchen 9 independently of the operation of the cooling means or the heating means 6. To the arrow in the figure, G indicates the flow of air by the air conditioner 20. In the present invention, as the cooling means or the heating means 6 and the air conditioner 20, any conventionally known cooling means or heating means 6 and the air conditioner 20 can be used.

FIG. 2 shows another embodiment of the present invention. In this embodiment, the heat source 1 for cooking is arranged apart from the wall 11 of the kitchen 9, and the range hood device 10 arranged above the heat source 1 for cooking is also arranged apart from the wall 11. Further, air supply units 3 are provided on both sides of the exhaust hood 2, and the air supply units 3 on both sides are respectively provided with the partition unit 16
Is divided into an inner air supply section 4 and an outer air supply section 5, and the inner air supply section 4 is located on the side close to the exhaust hood 2 side.
The outer air supply unit 5 is located on the side away from the exhaust hood 2 side. The leeward side of the air supply passage 8 is branched air supply passages 8b, 8b, 8c, 8c obtained by branching the common air supply passage 8a, and the left and right inner air supply portions 4 are respectively branched.
The tip of b is connected, and the tips of the branch air supply passages 8c, 8c are connected to the left and right outer air supply portions 5, respectively. Also,
Cooling means or heating means 6 are provided in the outside air supply section 5 on both sides. In this embodiment, the outside air from the inner air outlet 17 of the inner air supply portion 4 is as shown by arrows a and b in FIG. 2, and the air-conditioned outside air blown out from the outer air outlet portion 18 of the outer air supply portion 5 is used. Becomes like arrow C and D in Fig. 2.
Both sides of the cooking heat source 1 will be air-conditioned. Therefore, a cook who works on both sides of the cooking heat source 1 can cook in a comfortable state.

In the above embodiment, the air supply portion 3 is provided on each side of the exhaust hood 2, but the air supply portion 3 may be provided on the entire outer peripheral portion of the exhaust hood 2. Also in this case,
The air supply section 3 located on each outer surface is the partition section 1 respectively.
The inner air supply unit 4 is divided into the inner air supply unit 4 and the outer air supply unit 5 by 6, the inner air supply unit 4 is located closer to the exhaust hood 2 side, and the outer air supply unit 5 is separated from the exhaust hood 2 side. Positioned configuration.

In each of the above-mentioned embodiments, the cooling means 6 is arranged in the outside air supply part 5 so that the outside air blown out from the outside air outlet 18 is blown out as the conditioned air. However, as shown in FIG. 3 and FIG. A cooling means or a heating means 6 may be provided in the middle of the branched air supply passage 8c.

[0021]

According to the first aspect of the present invention, as described above, the exhaust hood is arranged above the cooking heat source in the kitchen, and the air supply unit is provided outside the exhaust hood. The air supply section is located closer to the exhaust hood side to supply the outside air into the kitchen, and the air supply section is located farther from the exhaust hood side to supply the conditioned air to the kitchen. Since it is divided into an outside air supply part for supplying inside, when exhausting exhaust gas generated when cooking with a cooking heat source from the exhaust hood, outside air is supplied from the air supply part outside the exhaust hood to the inside of the kitchen. By supplying air to the air conditioner, it becomes a kind of air curtain, and the amount of air-conditioned air in the room to be discharged to the outside together with the exhaust air can be reduced, and therefore energy can be saved. Further, the air curtain effect can prevent exhaust gas or oil mist generated when cooking with a cooking heat source from scattering in the kitchen, and does not contaminate the kitchen. In addition, when supplying outside air from the air supply unit to the kitchen, the outside air is supplied from the inner air supply unit located near the exhaust hood side and the air conditioner is supplied from the outer air supply unit located away from the exhaust hood side. As a result, the conditioned air supplied from the outer air supply section flows downward without short-passing to the exhaust hood side and stands in front of the heat source for cooking. The cook who is working can cook in a comfortable state. In this case, since the outside air is supplied from the inside air supply part and the conditioned air is supplied from the outside air supply part, the conditioned air does not short pass to the exhaust hood, and the inside air supply part does not The outside air is not diffused in the kitchen, and most of it is exhausted to the outside from the exhaust hood together with the exhaust gas, and the outside air that is not air-conditioned does not affect the air-conditioned air in the kitchen, and the energy There is no need to reduce loss and increase the capacity of the air conditioner,
For example, the number of outdoor units installed can be reduced.

Further, in the invention described in claim 2, in addition to the effect of the invention described in claim 1, since the air supply portions are arranged on both sides of the exhaust hood or on the entire outer peripheral portion, respectively.
It can be applied when the cooking heat source is placed away from the wall, even if there is a cook on either side of the cooking heat source,
You can comfortably cook. In addition, in the invention of claim 3, in addition to the effect of the invention of claim 1 or claim 2, since the cooling means or the heating means is provided in the outside air supply part, the exhaust hood is supplied. The construction can be simplified because the construction can be performed as a unit in a state in which the cooling means or the heating means is incorporated in the range hood unit provided with the air part.

According to the invention of claim 4, in addition to the effect of any one of the inventions of claims 1 to 3, in addition to the effect of the invention of claim 1, the leeward side of the air supply passage equipped with a fan for air supply. Since one is connected to the inner air supply part and the other is connected to the outer air supply part, when supplying the outside air to the inner air supply part and the outer air supply part, a pipe structure for air supply is provided. It can be simplified and the construction can be simplified.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of another embodiment of the above.

FIG. 3 is a schematic configuration diagram of still another embodiment of the same.

FIG. 4 is a schematic configuration diagram of still another embodiment of the same.

FIG. 5 is a schematic configuration diagram of a conventional example.

[Explanation of symbols]

 1 Heat Source for Cooking 2 Exhaust Hood 3 Air Supply Section 4 Inner Air Supply Section 5 Outer Air Supply Section 6 Cooling or Heating Means 7 Air Supply Fan 8 Air Supply Path 9 Kitchen

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Jiro Masuda 1-20-19 Shimanouchi, Chuo-ku, Osaka Stock Company Craco (72) Inventor Kosei Nakano 1-20-19 Shimanouchi, Chuo-ku, Osaka Stock Company In Craco

Claims (4)

[Claims] 1. An exhaust hood is disposed above a cooking heat source in a kitchen, and an air supply unit is disposed outside the exhaust hood. And an outside air supply portion for supplying the air-conditioned air located in a side away from the exhaust hood side to the inside of the kitchen. Intake and exhaust equipment for the kitchen. 2. The intake / exhaust device for a kitchen according to claim 1, wherein air supply portions are arranged on both sides or the entire outer peripheral portion of the exhaust hood. 3. The intake / exhaust device for a kitchen according to claim 1, wherein cooling means or heating means is provided in the outer air supply part. 4. The leeward side of an air supply path provided with a fan for air supply is branched to connect one to an inner air supply section and the other to an outer air supply section. An intake / exhaust device for a kitchen according to claim 3.