JP2920517B2 - Kitchen air supply and exhaust system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a kitchen air supply / exhaust system capable of exhausting odors and smoke generated in a gas range of a kitchen without affecting the air conditioning of the kitchen. is there.

[0002]

2. Description of the Related Art In a conventional gas range of a kitchen, a large hood and an exhaust fan provided above the gas range suck and discharge steam, smoke or oil fine particles generated during cooking, and the space just above the gas range. Could not be used for applications such as storage shelves. There is also a method of installing an air flow straightening plate directly above the gas table and installing a storage shelf above it, but a large amount of air must be sucked and discharged compared to when using a large hood, and in an air-conditioned kitchen it is heated or cooled. Air is exhausted and energy is lost.

Further, a kitchen needs a gap for taking in air corresponding to the displacement of an exhaust fan, but in a general kitchen, the position of a gas range such as a window, a door, a door, a gap of a shoji, etc. in the entire kitchen. Since air is taken in from a farther place, there is a problem that feet may feel cold in winter.

[0004] Ventilation air in a kitchen is often taken through a gap between a window and a door, and an air flow is formed along a line connecting the air intake gap and a hood of an exhaust fan in a straight line. Steam, smoke, oil particles, and the like rising from the range are secondarily sucked slowly. Therefore, vapors, smoke or oil particulates that are not sucked or diffused during the slow ascent can spread the odor and also contaminate the walls and the like.

Japanese Utility Model Publication No. 6-8426 discloses that a gas appliance such as a gas range is installed on the floor of the room with a required gap between the gas appliance and an outer wall, and air is provided near the outer wall of a combustion portion of the gas appliance. An air outlet is provided, and an air inlet tube is provided through the floor of the gap, and an air supply pipe having an upper end connected to the air outlet and a lower end connected to the air inlet tube is vertically disposed in the gap. There is described an outside air supply device for a combustion appliance, which is provided.

Japanese Patent Application Laid-Open No. 55-160246 discloses a method in which an air discharge hole is provided at the outer edge of the upper surface of a cooking table main body, and the air discharge hole and an air introduction hole opened outside the wall surface of the building. The cooking stove is characterized by being communicated with a duct, introducing outside air into the duct by a blower provided in the duct, and discharging this from the air discharge hole to form an air curtain around the cooking table. Are listed.

Further, Japanese Utility Model Laid-Open Publication No. 50-36745 discloses a body provided with a housing portion for housing a burning appliance with respect to a wall plate and a hollow portion for supplying combustion air and air as an air curtain layer. A kitchen unit is described in which the cavity is formed with an intake hole for combustion air and an air discharge port for forming an air curtain layer in communication with the inside of the cavity.

[0008]

In each of the publications described above, a large exhaust hood is installed above the combustion equipment, so that it occupies a large volume in the kitchen.
This leads to inconvenience of insufficient storage space for storage shelves.
Also, installing an exhaust fan relatively close to the combustion equipment without installing a hood requires a large amount of exhaust air, exhausting a large amount of air in the kitchen, causing large energy loss during heating and cooling, and cooking work Also gives discomfort to people.

[0009] In any of the publications described above, the outlet is located directly below the gas range or around the cooking table, and the air sucked from outside or under the floor by the operation of the exhaust fan of the kitchen is used as the air. It does not form an air curtain around the upper part of the gas range by blowing out from the blowing hole and the air blowing opening. In addition, blowing high-speed air from below the gas range causes the flame to fluctuate, and blows out the flame when the blowing amount is large. Also, steam generated from a gas range even if air is blown out from around the worktop,
The odor cannot be exhausted completely.

The present invention has a structure which does not affect the air conditioning of the kitchen, does not generate an uncomfortable airflow for the cooking worker in the kitchen, does not extinguish the gas in the gas range, and does not diffuse smoke, oil particulates, etc. to the surroundings. It is an object of the present invention to provide a simple and inexpensive kitchen air supply / exhaust device.

[0011]

A kitchen air supply / exhaust system according to the present invention has an air intake opening formed by removing a floor plate from an air flow passage having no bottom plate formed inside a storage portion inside a range base. The air flow passage and the air flow passage at the upper part of the storage unit inside the range stand communicate with each other, and the air flow space communicates with both sides of the gas range mounting plate at the upper part of the range stand and three sides around the wall side. A large number of air outlets and air outlets are provided on the front panel of the range stand, and the air taken in from under the floor is removed by air only by operating the air rectifying plate provided on the wall and the exhaust fan in the exhaust duct communicating outdoors. Air is blown out from the air outlet and air outlet, and the air curtains formed on the front, both sides, and the wall surface above the range stand wrap smoke around the gas range in the kitchen from the surroundings, and are introduced into the exhaust port and discharged outside. Thing .

In a kitchen air supply / exhaust device according to the present invention, an air intake opening is formed by removing a floor plate from an air flow passage having no bottom plate formed inside a storage portion inside a range base and having an air intake opening. A drawer-type cut-off opening plate is provided in the passage, and the air circulation space formed by the storage unit upper plate inside the range table, both side plates of the storage unit, and the gas range mounting plate above the range table is used as the air flow passage. A large number of air outlets communicating with the air flow openings are provided on both sides of the mounting plate of the gas range and three sides around the wall side, and the air outlets are provided on the front plate of the range stand. An exhaust port of an exhaust duct communicating with the outdoors is provided below the mounting portion of the air straightening plate mounted on the wall so as to be located immediately above the gas range, and an exhaust fan is provided in the exhaust duct. By the operation of the sky Air sucked from under the floor through the flow passage and the air circulation space blows out from the air outlet and the air outlet, forming an air curtain on the front surface, both side surfaces and the wall surface above the range stand, and the air curtain is a gas. The steam, odor, smoke and the like generated by use of the microwave are wrapped around, guided to an exhaust port, and discharged outside through an exhaust duct.

In the kitchen air supply / exhaust device according to the present invention, an air intake opening is formed by removing a floor plate from an air flow passage having no bottom plate formed at the back of a storage portion inside a range base. A drawer-type cut-off opening plate is provided in the passage, and the air circulation space formed by the storage unit upper plate inside the range table, both side plates of the storage unit, and the gas range mounting plate above the range table is used as the air flow passage. A large number of air outlets communicating with the air flow openings are provided on both sides of the mounting plate of the gas range and three sides around the wall side, and the air outlets are provided on the front plate of the range stand. An air baffle is attached to a wall located almost directly above the gas range and at a height from the floor slightly lower than twice the height of the cooking table, and an air duct is provided. The exhaust vent penetrates the lower wall of the air baffle The air sucked from under the floor through the air flow passage and the air circulation space by the operation of the exhaust fan provided in the exhaust duct, blows out from the air outlet and the air outlet, and the range is provided. An air curtain is formed on the front, both sides, and the wall surface above the table, and the air curtain wraps water vapor, odor, smoke, etc. generated by using the gas range from the surroundings, introduces it to the exhaust port, and outdoors through the exhaust duct. To discharge.

In the kitchen air supply / exhaust device according to the present invention, an air intake opening is formed by removing a floor plate from an air flow passage having no bottom plate formed at the back of a storage portion inside a range base. A drawer-type cut-off opening plate is provided in the passage, and the air circulation space formed by the storage unit upper plate inside the range table, both side plates of the storage unit, and the gas range mounting plate above the range table is used as the air flow passage. A large number of air outlets communicating with the air flow openings are provided on both sides of the mounting plate of the gas range and three sides around the wall side, and the air outlets are provided on the front plate of the range stand. An air outlet opening is provided in the front plate of the range stand, and is located almost directly above the gas range, and the height from the floor is slightly lower than twice the height of the cooking table. An air flow regulating plate is attached to the wall of An exhaust port of the air duct is provided through the lower wall of the air straightening plate, and is sucked from under the floor through the air flow passage and the air circulation space by the operation of an exhaust fan provided in the exhaust duct. Air blows out from the air outlet and the air outlet, forming an air curtain on the front surface, both side surfaces and wall surfaces above the range stand,
The air curtain introduces water vapor, odor, smoke, and the like generated by use of the gas range into the exhaust port so as to surround it, and discharges the air outside through the exhaust duct.

The depth of the air flow passage in the kitchen air supply / exhaust device according to the present invention is 1/2 to 1/5 of the depth of the storage portion of the range stand, and the width of the width is not greater than the depth of the housing. It is almost equal to the length of the width of the storage part of the range stand.

The air flow regulating plate in the kitchen air supply / exhaust device according to the present invention is made of a non-combustible material such as glass or a heat insulating material and is transparent.

In the air supply / exhaust device for a kitchen according to the present invention, the air flow regulating plate has a central part near a line parallel to the wall so that the tip end thereof is lower than a fixing portion attached to the wall. It is bent along.

In the air supply opening of the kitchen air supply / exhaust device according to the present invention, an air intake filter made of wire mesh or the like is provided so as to prevent cats, rats, insects, etc. from entering.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view for explaining an embodiment of a kitchen air supply / exhaust device according to the present invention. FIG. 1 is a part of an embodiment of a kitchen air supply / exhaust device according to the present invention. 2 is a cross-sectional view taken along line AA of FIG. 1, FIG. 3 is a cross-sectional view taken along line BB of FIG. 1, and FIG. 4 is a cross-sectional view taken along line CC of FIG. FIG. FIG. 5 is a front view showing, in section, a part of another embodiment of the kitchen air supply / exhaust device according to the present invention, and FIG.
It is sectional drawing in the -D line.

One embodiment of a kitchen air supply / exhaust device according to the present invention will be described with reference to FIGS. 1 to 4. Referring to FIG. 1, a partition plate 11 is provided at the back of a storage portion 5 inside a range base 1 on which a gas range 7 is mounted.
And a mounting plate 18 on which the gas range 7 of the range plate 1 and the partition plate 11 is mounted, both side plates 12 and 12, and a plate 1 on the wall 17 side.
3 form an air flow passage 2, the air flow passage 2 does not have a bottom plate, and the floor plate 21 of the air flow passage 2 having no bottom plate is removed so that air is introduced from under the floor 6. An air intake opening 4 is formed, and a drawer-type shutoff opening plate 3 is provided slightly above the air flow passage 2, and a top plate 27 above the storage section 5 inside the range stand 1 and a gas range 7 are provided. An air flow space 26 is formed by the mounting plate 18 and the upper portions of the side plates 12 and 12 of the range stand 1, and the air flow space 26 communicates with the air flow passage 2.

The depth l of the air flow passage 2 is か ら to ５ of the depth L of the storage portion 5 of the range stand 1, and the width of the air flow passage 2 is It is almost equal to the width of the storage section 5. As shown in FIG. 2, the width of the air circulation space 26 communicating with the air flow passage 2 is substantially equal to the width of the storage portion 5, and the space between the top plate 27 and the mounting plate 18 of the storage portion 5 is provided. The interval, that is, the height is also loose. Thus, the air flow passage 2 and the air flow space 26 are both large-volume air flow passages.

Mounting plate 1 of gas range 7 above range table 1
Numerous air outlets 8 are provided on both sides of wall 8 and on three sides around the wall so as to surround gas range 7, and air outlets 9 are provided on top of front plate 14 of range base 1.

The gas range 7 is positioned almost directly above the gas range 7 and on the surface of the wall 17 where the height H from the surface of the floor plate 21 is slightly lower than twice the height h of the range stand 1. An air flow regulating plate 15 having an area equal to or slightly smaller than the plane area is provided substantially horizontally, and an exhaust duct 16 for exhausting air generated by using the gas range 7 to the outside.
A wide exhaust port 19 is provided through the wall 17 below the air straightening plate 15, and the exhaust fan 10 is provided at an appropriate position in the exhaust duct 16.

The top plate 27 of the storage unit 5 inside the range stand 1 is provided with a drawer-type cut-off opening plate 3 for blocking the flow of air in the air flow passage 2 or for flowing the air. The air intake opening 4 of the air flow passage 2 is formed by removing the floor plate 21. Naturally, the amount of air taken into the kitchen can be controlled by the amount of pull-out of the blocking opening plate 3. Reference numeral 13 denotes a wall-side plate, and reference numeral 20 denotes a cooking table.

The air flow passage 2 has a depth l which is か ら to 1 of the depth L of the storage portion 5 of the range stand 1.
/ 5, and the width of the air flow passage 2 is
When the exhaust fan 10 is operated, the air under the floor 6 flows slowly from the air intake opening 4 into the air flow passage 2 when the exhaust fan 10 is actuated. Then, the gas is blown into the kitchen from the air outlet 8 and the air outlet 9 through the air circulation space 26, and the gas range 7 below the air straightening plate 15 from the front surface of the range stand 1, both side surfaces of the range stand 1 and the wall surface of the range stand 1. An air curtain having a gentle flow is formed around the four sides, and the air curtain wraps water vapor, odor, smoke, etc. generated from the gas range 7 in the kitchen from the surroundings and discharges the air from the exhaust port 19 of the exhaust duct 16 to the outside.

The air flow regulating plate 15 is a transparent material made of a non-combustible material such as glass or a heat insulating material having an area equal to or slightly larger than the plane area of the gas range 7. Located and its installed height H
Although the height from the floor plate 21 is slightly lower than twice the height h of the worktop, the work is safe and clean without any hindrance to the cooking operation.

When cooking in the gas range 7 of the kitchen,
By pulling out the drawer-type shut-off opening plate 3, the air flow passage 2 is unblocked, the exhaust fan 10 is operated, and an amount of air substantially equal to the amount of exhaust air discharged outside by the exhaust fan 10 is transmitted from the underfloor 6 to the air flow passage 2 And a large number of air blowout holes 8 provided on three sides around the mounting plate 18 of the gas range 7 except for the front surface thereof, and a wide air blowout provided at the upper portion of the shutoff opening plate of the front plate 14 of the gas range 7. The exhaust fan 10 provided at an appropriate position in the exhaust duct 16 is blown out from the opening 9 and does not form an air flow for causing a person in the kitchen to feel the cold or to discharge the conditioned air in the kitchen. The air sucked from under the floor 6 by the operation causes the air outlet 9 and the air outlet 8 to pass through the air flow passage 2 and the air flow space 26.
And an air curtain is formed below the air straightening plate 15 from the front surface of the range table 1, the both sides of the range table 1 and the surface of the wall 17 of the range table 1, and the air curtain is generated from the gas range 7 in the kitchen. The water vapor, odor, smoke and the like are wrapped around and introduced into the exhaust port 19 of the exhaust duct 16 and discharged outside.

When the exhaust fan 10 does not operate, the shut-off opening plate 3 may be closed so that wind does not enter the kitchen from under the floor 6. The air inlet 4 is provided with an air inlet filter 23 made of a wire mesh or the like so that cats, rats, insects, etc. do not enter. When the plate-shaped drawer-type cut-off opening plate 3 is closed, the air flow passage 2 is closed and no outside air flows in, so that cold wind does not enter the feet of the cooking worker in the kitchen in winter, Also, the energy of the air conditioned in the kitchen is not lost.

Smell, water vapor, smoke or fine particles of oil generated by cooking such as boiled food, grilled food, and boiling in the gas range 7 are wrapped by the air blown out from the air outlet 8 and the air outlet 9 of the air flow passage 2. As it is, it rises almost directly above, forms air curtains on all sides of the gas range 7, is rectified by the upper air rectifying plate 15, and is discharged outside by the large-capacity exhaust fan 10. At this time, the air blown from the air outlet 8 and the air outlet 9 at the end of the air flow passage 2 above the surroundings of the kitchen gas range 7 using the fire generates an air curtain 18, The water vapor, odor, smoke and the like generated by use are wrapped around and reach the air rectifying plate 15, rectified by the air rectifying plate 15, and
Since the gas is introduced into the chamber 9 and discharged outside, the odor, water vapor, smoke or oil fine particles from the gas range 7 are diffused before reaching the hood and adhere to the rear wall 17 as in a conventional ventilation fan. Decrease.

As described above, an air curtain composed of a gentle flow of air is formed around the four sides of the gas range 7 so that the air curtain wraps water vapor, odor, smoke and the like generated by use of the gas range from the surroundings. 19, and discharged outside through an exhaust duct, so that odors, water vapor, smoke or oil fine particles, etc. generated by the use of the gas range 7 which is a problem of ventilation of the kitchen with the conventional hood and ventilation fan are discharged to the hood. Reduces spread and adhesion to the back wall before reaching, and creates an unpleasant airflow, such as cold feet and lower body, for cooks in the kitchen without affecting kitchen air conditioning. Nor does it extinguish the gas stove. In addition, the space above the gas range can be effectively used without using a conventional large exhaust hood, and the volume of the kitchen can be effectively used without adhering smoke, oils, water vapor, etc. around the kitchen. it can. Also, there is no noise associated with the flow of air.

Another embodiment of the kitchen air supply and exhaust system according to the present invention will be described with reference to FIGS.
Partition plate 1 at the back of the storage unit 5 inside the range table 1 on which the
1, an air flow passage 2 is formed by a partition plate 11, a mounting plate 18 on which the gas range 7 of the range stand 1 is mounted, both side plates 12 and 12, and a plate 13 on a wall 17 side. The passage 2 does not have a bottom plate, and the floor plate 21 of the portion of the air flow passage 2 having no bottom plate is removed so that air is introduced from under the floor 6 to form the air intake opening 4. A drawer-type cut-off opening plate 3 is provided slightly above the top 2, and a top plate 27 above the storage unit 5 inside the range table 1, a mounting plate 18 of the gas range 7, and both side plates 12, 12 of the range table 1 are provided.
An air circulation space 26 is formed by the upper part and the air circulation space 26 communicates with the air passage 2.

The depth l of the air flow passage 2 is か ら to １ ／ of the depth L of the storage portion 5 of the range table 1, and the width of the air flow path 2 is the width of the range table 1. It is almost equal to the width of the storage section 5. As shown in FIG. 5, the width of the air circulation space 26 communicating with the air flow passage 2 is substantially equal to the width of the storage portion 5, and the space between the top plate 27 and the mounting plate 18 of the storage portion 5 is provided. The interval, that is, the height is also loose. Thus, the air flow passage 2 and the air flow space 26 are both large-volume air flow passages.

Mounting plate 1 of gas range 7 above range table 1
A large number of air outlets 8 communicating with the air flow passage 2 so as to surround the gas range 7 on both sides and three sides of the wall side of the wall 8.
The air outlet 9 is provided above the front plate 14 of the range stand 1.

The height H above the gas range 7 and from the surface of the floor plate 21 is equal to the height h of the range base 1.
Gas stove 7 on wall 17 slightly lower than double
An air flow regulating plate 15 having an area equal to or slightly smaller than the plane area of the gas range is provided substantially horizontally.
The wide exhaust port 19 of the exhaust duct 16 for exhausting the air generated by the use of the air to the outside is provided on the lower wall 1 of the air flow regulating plate 15.
7, and an exhaust fan 10 is provided at an appropriate position in the exhaust duct 16. When the exhaust fan 10 is operated, air is sucked from under the floor 6, and the sucked air is blown out from the air outlet 8 and the air outlet 9 through the air flow passage 2 and the air flow space 26, and the front of the range table 1 and the range An air curtain is formed below the air straightening plate 15 from both sides of the stand 1 and the wall surface of the range stand 1.

In order to facilitate the introduction of air containing grilled foods, fried foods, fried foods, boiled foods, etc. generated by using the gas range 7 to the exhaust port 19 of the exhaust duct 16 for exhausting the air to the outside, an air flow regulating plate is used. 15 is bent along a line parallel to the wall 17 in the vicinity of the central portion so that the tip end portion 28 is below the fixing portion fixed to the wall. As described above, the air rectifying plate 15 has a simple structure. An air curtain is formed below the plate 15 so that the flow of air sucked into the exhaust port 19 can be efficiently adjusted.
In the description of the embodiment shown in FIGS. 5 and 6, FIG.
In the case where the components, members, or solution means of the embodiment shown in FIG. 4 are common, they may be omitted.

[0036]

The kitchen air supply / exhaust device according to the present invention is characterized in that the air sucked from under the floor only by the operation of the exhaust fan provided in the exhaust duct during cooking of grilled foods and stir-fried oils in the kitchen. Air is gently blown out of the air outlets and air outlets on the front of the range base, on both sides of the range base, and on the wall side of the range base, and the air is rectified below the air flow straightening plate provided just above the range base. A curtain is formed, and this air curtain wraps water vapor, odor, smoke, etc. from the surroundings and introduces it to the exhaust port of the exhaust duct, and discharges it outdoors, so that smoke, water vapor, oil fine particles, etc. generated by using a gas range Is not attached to the surroundings or diffused.

The kitchen air supply / exhaust system according to the present invention does not affect the air conditioning of the kitchen, does not cause an uncomfortable airflow such as the cooling of the toes or lower body of the cooking worker in the kitchen, and the gas range. This has the effect that smoke, water vapor, fine oil particles and the like from the gas range can be discharged to the outside without extinguishing the flame.

The kitchen air supply / exhaust device according to the present invention does not use a conventional large exhaust hood, so that the space above the gas range can be used effectively, the kitchen volume can be used effectively, and energy saving is achieved. In addition, there is an effect that the structure is simple and the device is inexpensive.

[Brief description of the drawings]

The drawings are for explaining an embodiment of a kitchen air supply / exhaust device according to the present invention.

FIG. 1 is a front view showing a cross section of a part of an embodiment of a kitchen air supply / exhaust device according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a cross-sectional view taken along the line BB of FIG. 1, omitting an air inlet filter made of a wire mesh or the like provided to prevent cats, rats, insects, etc. from entering the air inlet opening. Things.

FIG. 4 is a sectional view taken along line CC of FIG. 2;

FIG. 5 is a front view showing, in section, a part of another embodiment of the kitchen air supply / exhaust device according to the present invention.

FIG. 6 is a sectional view taken along line DD of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Range stand 2 Air flow passage 3 Pull-out shut-off opening plate 4 Air intake opening 5 Storage section 6 Under floor 7 Gas range 8 Air outlet 9 Air outlet 10 Exhaust fan 11 Partition plate 12 Side plate 13 Wall side plate 14 Front plate DESCRIPTION OF SYMBOLS 15 Air rectifying plate 16 Exhaust duct 17 Wall 18 Placement plate 19 Exhaust port 20 Cooking table 21 Floor plate 23 Air intake filter made of wire mesh etc. 26 Air circulation space 27 Top plate 28 Tip

Claims (8)

(57) [Claims] 1. A floor plate is removed from an air flow passage having no bottom plate formed at the back of a storage portion inside a range base to form an air intake opening, and an air flow space above a storage portion inside the range base. The air flow passage is in communication with the gas range mounting plate on the upper side of the range stand and on the three sides around the wall, and a number of air outlets communicating with the air flow space and the air outlet on the front plate of the range stand. Provided only by the operation of the exhaust fan in the exhaust duct communicating with the air straightening plate provided on the wall surface and the outside, air sucked from under the floor is blown out from the air outlet and the air outlet, the front surface above the range stand, An air supply / exhaust system for a kitchen, characterized in that air curtains formed on both side surfaces and wall surfaces wrap smoke or the like generated from a gas range in the kitchen from the surroundings, and are introduced into an exhaust port and discharged outside. 2. An air intake opening formed by removing a floor plate from an air flow passage having no bottom plate formed at the back of a storage portion inside a range base, and a drawer-type shut-off plate is provided in the air flow passage. The air circulation space formed by the upper plate of the storage unit inside the range table, both side plates of the storage unit, and the gas range mounting plate of the upper range table communicates with the air flow passage, and A large number of air outlets communicating with the air flow openings are provided on both sides of the mounting plate and on three sides around the wall, and the air outlets are provided on the front plate of the range stand. An exhaust port of an exhaust duct communicating with the outdoors is provided below a mounting portion of an air flow regulating plate attached to a wall so that the air flow path and the air flow path are only operated by an exhaust fan provided in the exhaust duct. Through air circulation space Then, the air sucked from under the floor blows out from the air outlet and the air outlet to form an air curtain on the front, both side surfaces, and the wall surface above the range stand, and the air curtain is generated by using a gas range. A kitchen air supply / exhaust device characterized in that odor, smoke and the like are wrapped around and introduced into an exhaust port, and discharged outside through an exhaust duct. 3. An air intake opening is formed by removing a floor plate from an air flow passage having no bottom plate formed inside a storage portion inside a range base, and an air intake opening is provided in the air flow passage. The air circulation space formed by the upper plate of the storage unit inside the range table, both side plates of the storage unit, and the gas range mounting plate of the upper range table communicates with the air flow passage, and A large number of air outlets communicating with the air flow openings are provided on both sides of the mounting plate and three sides around the wall side, and the air outlets are provided on the front plate of the range stand, almost directly above the gas range. And the air flow straightening plate is attached to the wall surface at a height slightly lower than twice the height of the cooking table from the floor, and the exhaust port of the exhaust duct is located below the air straightening plate. It is provided through the wall and inside the exhaust duct Air sucked from under the floor through the air flow passage and the air circulation space only through the operation of the provided exhaust fan blows out from the air outlet and the air outlet, and the front, upper and lower side surfaces of the range stand and A kitchen in which an air curtain is formed on a wall surface, and the air curtain wraps water vapor, odor, smoke, and the like generated by use of a gas range from the surroundings, is introduced into an exhaust port, and is discharged outside through an exhaust duct. Air supply and exhaust system. 4. An air intake opening is formed by removing a floor plate from an air flow passage having no bottom plate formed inside a storage portion inside a range base, and an air intake opening is provided in the air flow passage. The air circulation space formed by the upper plate of the storage unit inside the range table, both side plates of the storage unit, and the gas range mounting plate of the upper range table communicates with the air flow passage, and A large number of air outlets communicating with the air flow openings are provided on both sides of the mounting plate and three sides around the wall side, and air outlets are provided on the front plate of the range stand, and the front plate of the range stand has An air outlet is provided, and an air flow regulating plate is attached to a wall surface located almost directly above the gas range and at a height slightly lower than twice the height of the cooking table from the floor. And the exhaust port of the exhaust duct is The lower wall is provided through the lower wall, and air sucked from under the floor through the air flow passage and the air circulation space only by the operation of the exhaust fan provided in the exhaust duct is provided in the air outlet and the air outlet. Air from the air outlet, and form air curtains on the front, both sides, and the wall surface above the range stand.The air curtain wraps around the water vapor, odor, smoke, etc. generated by using the gas range and introduces them into the exhaust port. A kitchen air supply / exhaust device, wherein the air is exhausted outside through an exhaust duct. 5. The depth of the air flow passage is か ら to ５ of the depth of the storage portion of the range stand. The kitchen air supply / exhaust device according to claim 3 or 4. 6. The kitchen according to claim 1, wherein the air flow regulating plate is made of a noncombustible material made of glass or the like or a transparent material made of a heat insulating material. Air supply and exhaust system. 7. The air flow straightening plate is characterized in that its center is bent along a line parallel to the wall so that its tip is below the fixing portion attached to the wall. The kitchen air supply / exhaust device according to claim 1, claim 2, claim 3, claim 4, or claim 6. 8. The air intake filter according to claim 2, wherein a filter such as a wire mesh is provided in the air intake opening so as to prevent cats, rats, insects, etc. from entering the air intake opening. Or the kitchen air supply / exhaust device according to claim 4.