JP2006258349A - Kitchen ventilation facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation facility having a simple structure and capable of surely preventing fine particles of a smell, oil or the like generated in cooking from exiting to the outside from the vicinity of a heat source. <P>SOLUTION: The left side and the front side of a gas table 12 is insulated from the outside by walls 1, 1 and the right side thereof is insulated from the outside by a rolled-up screen 2. A smell and smoke are sucked by a ventilation hood 3 and the smell and the smoke are prevented from leaking behind the gas table 12. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a kitchen ventilation equipment, and more particularly to a kitchen ventilation equipment provided with a ventilation opening provided above a cooking heat source.

  In a kitchen, when cooking on a gas stand or an electromagnetic cooker, various odors are generated by heating, or water or oil becomes gas or fine particles and drifts in the air. When these odors, gases, fine particles, oily smoke, etc. flow outside from the vicinity of gas stands or electromagnetic cookers, the interior becomes dirty and unpleasant odors are infiltrated into furniture, clothes, etc., which becomes a problem. In particular, smoke and odor when grilling fish and meat are a problem, and for this reason, cooking grilled fish at home has been avoided.

  In order to solve such problems, ventilation fans and ventilation hoods are installed above gas stands and electromagnetic cookers to discharge odors, gases, and particulates outside the building. Since it is difficult to solve a complete problem simply by providing a ventilation hood, the following studies have been conducted.

  In Patent Document 1, in order to improve the environment of the kitchen, a ventilation hood is provided above the vicinity of the heat source for cooking and a purification device for purifying the air sucked into the ventilation hood is provided. A kitchen ventilation facility is disclosed in which all sides are separated from the outside by a wall and an air curtain.

Further, in Patent Document 2, in order to prevent the outside air from entering the house and maintain a comfortable temperature environment, in addition to the exhaust device, an intake device and a fine pressure difference correction device are installed around the gas table. Is disclosed.
JP-A-6-193935 JP 11-337143 A

  However, since the equipment of Patent Document 1 requires an air curtain, the equipment is large and complicated, and there is a problem that energy consumption increases and noise of the air curtain is also generated. Moreover, if it is going to install in the existing kitchen, a large-scale construction will be needed and will require a great expense.

  And since the installation of patent document 2 also has an air curtain, it has the same problem as the installation of patent document 1.

  The present invention has been made in view of such points, and the object of the present invention is to reliably prevent fine particles such as odors and oil generated during cooking with a simple structure from coming out of the vicinity of the heat source. It is to provide ventilation facilities.

  In order to solve the above problems, the following measures were taken.

  The kitchen ventilation equipment of the present invention is a kitchen ventilation equipment provided with a ventilation port provided above a cooking heat source, and the space between the cooking heat source and the ventilation port is in three directions of front, rear, left and right It is shielded from the outside by a shielding member, and one is opened.

  With the above configuration, the space between the cooking heat source and the ventilation opening is shielded from the outside by being surrounded by a shielding member on the front, rear, left and right sides, and odors and smoke leak in that direction I will not put it out. Moreover, since one side is open, the cooker can cook without being bothered by the shielding member or the air curtain from that part, and smells from the open part due to the action of the three-way shielding and the exhaust from the upper ventilation port. Etc. will not leak. The blocking member includes an air curtain, and there is no shielding facility such as an air curtain on the open side. Here, the ventilation port is a ventilation hood which is the other end of a ventilation passage (duct) connected to the ventilation fan at one end, or an opening directly facing the ventilation fan, and air in the space above the heat source for cooking. It is a part of the exhaust system that sucks in and exhausts outside the building. The former is a duct exhaust type, and the latter is a direct exhaust type ventilation facility.

  It is preferable that at least one of the three sides blocked from the outside is blocked from the outside by a movable shielding member. Here, the movable shielding member refers to a shielding member that is movable and is movable or deformable. In this case, the movable shielding member is preferably flame retardant, and the degree of flame retardancy is preferably UL94VTM-2 or higher than that. When the degree of flame retardancy is higher than UL94VTM-1 or higher, safety is enhanced, which is more preferable. Alternatively, the degree of flame retardancy is preferably evaluated as flame retardant by the FMVSS (American Automotive Safety Standards) method.

  It is preferable that the movable shielding member is detachably attached.

  The movable shielding member is preferably a roll-up screen. Here, the roll-up screen is a sheet-like screen also called a roll screen or a roll curtain, and is formed so as to be rolled up and pulled out.

  The cooking heat source is preferably an electromagnetic cooker.

The amount of exhaust from the ventilation port is preferably 200 m ³ / hour · m ² or more with respect to the area of the one open surface. That is, it is preferably 200 m ³ / hour or more per 1 m ^{2 of the} open surface area.

  According to the kitchen ventilation system of the present invention, it is possible to reliably prevent leakage of odors and the like generated by cooking to the surroundings by means of a simple structure. Can be cooked freely from.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following embodiments are examples, and the present invention is not limited to these examples. In addition, components having substantially the same function are denoted by the same reference numerals.

(Embodiment 1)
FIG. 1 is a perspective view of the kitchen ventilation equipment according to the first embodiment. In the present embodiment, gas stoves 11, 11, 11 are installed as cooking heat sources, and a ventilation hood 3 is provided above the gas stoves 11, 11, 11. The ventilation hood 3 as a ventilation opening is connected to a ventilation fan (not shown) by an exhaust duct 31.

  There are walls 1, 1 on the front and left sides of the gas stand 12 provided with the gas stoves 11, 11, 11 and the ventilation hood 3. Since the space between and the external space (front and left spaces) is blocked to block the gas flow, odors, smoke, oily smoke, etc. generated by cooking do not leak to the front and left.

  A roll-up screen 2 is installed on the right side of the gas stand 12 provided with the gas stoves 11, 11, 11 and the ventilation hood 3, whereby the space between the gas stoves 11, 11, 11 and the ventilation hood 3 is The external space (right side space) is cut off, and odors and smoke generated by cooking do not leak to the right. In other words, the roll-up screen 2 shields the gas table 12 from the right end to the right end of the ventilation hood 3, thereby blocking the gas flow.

  Moreover, the back of the gas stand 12 provided with gas stove 11,11,11 and ventilation hood 3 is open | released, and the cook can cook with gas stove 11,11,11 from here. Thus, since there is no shielding object behind, the cook can cook freely without being disturbed. In addition, an air curtain is also contained in the shield here.

  In a general kitchen, the gas stand 12 is open at least at the rear and one side for convenience of cooking. In the present embodiment, the opened side is shielded by the roll-up screen 2.

  In this way, when the rear is in an open state, it seems that odors and smoke generated by cooking leak from the outside space from here, but if the three sides are actually shielded, the hood 3 smells and smokes, etc. It was found that the air was not sucked into the open rear side. The experimental results relating to this are shown below.

  The experiment was conducted using the kitchen ventilation equipment shown in FIG. In order to evaluate leakage of odors and smoke, tobacco smoke was used as an experiment subject, and suspended dust derived from tobacco smoke was measured using a digital dust meter.

First, when the suspended dust concentration in each place in the kitchen before the experiment was measured, it was less than 0.02 mg / m ³ in any place.

Next, smoking was continuously performed immediately above the gas stoves 11, 11, 11 without operating the ventilation fan, and the suspended dust concentration in each place was measured. On the gas table 12, the dust concentration increased with the start of smoking and became 0.9 mg / m ³ after 10 minutes. Further, in the point of the right 2m stove 11, 11, 11, 0.16 mg / m ^3, and the in point of the rear 1.5m became 0.2 mg / m ³ after 10 minutes.

Then, smoking was continuously performed immediately above the gas stoves 11, 11, 11 while operating the ventilation fan and suctioning from the ventilation hood 3, and the suspended dust concentration at each place was measured. On the gas table 12, the dust concentration fluctuated with time, but averaged to 0.13 mg / m ³ . In addition, at the point 2 m to the right of the gas stove 11, 11, 11, there was no change in the dust concentration over time, and it was 0.02 mg / m ³ , which was the same as the dust concentration when there was no smoke before smoking. . Similarly, at a point 1.5 m behind, it was 0.02 mg / m ³ , which was the same level as that on the right side of the gas stoves 11, 11, 11.

From the above results, it is clear that if the ventilating fan is operated, the odor or smoke above the gas table 12 will not leak to the open side even if the rear of the gas table 12 is open. . That is, if the exhaust capacity of a ventilation fan for a kitchen (for example, about 500 m ³ / hour for home use), if the three directions of the upper space of the gas stand 12 are shielded, even if the remaining one direction is open, the open side All odors and smoke are exhausted by a ventilator without leaking. Therefore, by installing a simple structure called the roll-up screen 2, it is possible to prevent leakage to smell and smoke. At this time, no energy is required other than the energy used for the conventional ventilation fan. Moreover, since an open area becomes smaller than before, ventilation efficiency improves. For this reason, combustion efficiency is also improved.

  Further, since three sides of the gas stove 11, 11, 11 are shielded, the cross wind does not enter the space between the gas stove 11, 11, 11 and the ventilation hood 3. Here, the cross wind is a wind that enters the space between the gas stoves 11, 11, 11 and the ventilation hood 3 from the outside and exits to the outside. When two sides around the gas stove 11, 11, 11 are open, wind blows from one of the two sides into the space above the gas stove 11, 11, 11, and escapes to the other. If such a cross wind exists, odors and smoke existing in the space between the gas stoves 11, 11, 11 and the ventilation hood 3 will leak on the cross wind and leak into the external space. If there is only one state, there is no crosswind. In other words, all the wind that enters from the open rear is sucked into the ventilation opening. Thus, the ventilation equipment of this embodiment which shielded three sides also from the point that cross wind does not exist can prevent the leakage of odor, smoke, etc. to the outside reliably.

  As shown in Patent Documents 1 and 2, the inventors of the present application shield the rear side, which is the cooking side, with an air curtain because the odor, smoke, etc. leak if the space above and below the gas stand is not shielded in all four directions This is a completely different idea from the conventional way of thinking, that is, to open up one side and create a flow of air that is sucked into the ventilator at the open part to prevent leakage of odors and smoke. The present invention has been completed based on the idea.

In general household kitchens and commercial kitchen equipment, the exhaust fan has a sufficiently large exhaust capacity so that no odor or smoke will leak even if the rear of the gas stand 12 is open. As long as the exhaust capacity is 200 m ³ / hour or more per 1 m ^{2 of} open area, there is virtually no odor or smoke leaking from the open surface. Also in this embodiment, the open surface on the rear side has an area of about 1 m ² , but when tested by changing the exhaust amount of the ventilation fan, no odor / smoke leaked to outside at 700 to 250 m ³ / hour. Even at 200 m ³ / hour, there was no problem in practical use, but at 150 m ³ / hour, odors and smoke leaked out. Emissions of ventilating fan is increased wind speed to vent from the open surface becomes too large, reduction and noise in thermal efficiency, since the cooking's problems such as feel cold, practically open area 1 m ² per exhaust capacity 2000 m ³ / hour or less is preferable. Further, if the exhaust capacity is 1700 m ³ / hour or less per 1 m ^{2 of the} open area, the above-mentioned problems are hardly caused, which is more preferable.

  Next, the roll-up screen 2 installed on the right side of the gas table 12 will be described.

  The roll-up screen 2 which is a movable shielding member of this embodiment has the same structure as a roll-up screen used for curtains, projection screens, partitions, and the like. A roll-up screen is a screen made of cloth or the like wound in a tube having a slit, and is used as a curtain, screen, partition, etc. by pulling the screen out of the slit. The spring is built in and the drawn screen can be rewinded into the tube.

  In this embodiment, the tube 22 is horizontally fixed to the lower part of the ventilation hood 3. Fixing is performed by a magnet 23. The lower end of the screen 21 is fixed to the gas table 12 by suction cups 24 and 24 which are fixing members. Since the lower end of the screen 21 is fixed to the gas stand 12 in this way, the screen 21 is not sucked or vibrated toward the gas stand 12 when the ventilation fan is operated. Reliable shielding can be performed.

  Moreover, since the roll-up screen 2 is fixed to the ventilation hood 3 by the magnet 23 as described above, the roll-up screen 2 can be attached and detached, and the roll-up screen 2 can be easily attached even in existing kitchen facilities. It can be installed, and the existing kitchen equipment can be easily used as the ventilation equipment of this embodiment. In addition, what is used for fixing the roll-up screen 2 to the ventilation hood 3 is not limited to the magnet 23, and may be an adhesive tape, a suction cup, a screw stopper, or the like. Furthermore, since the roll-up screen 2 of this embodiment can be easily removed (removable) by removing the magnet 23, it can be easily replaced with a new roll-up screen 2 if it becomes dirty, and cleaning is also easy.

  FIG. 2 shows a state in which the screen 21 is wound into the tube 22. The screen 21 can be raised in this way when cooking is not performed on the gas stand 12 or when almost no odor or smoke is generated even when cooking. If it is in this state, a foodstuff, a pan, etc. can be easily moved to the gas stand from the adjacent cooking stand or sink. Therefore, the kitchen of this embodiment is easy to use, and when ventilation is not required, the kitchen can be used widely and the user can cook comfortably.

  The screen 21 according to the present embodiment is manufactured using a flame retardant plastic film. In this embodiment, since it uses in the vicinity of the gas stove 11, a flame retardance is represented by UL94VTM-1 or UL94VTM-0. Thus, since the screen 21 which consists of a flame-retardant plastic film is used, the screen 21 which concerns on this embodiment can be used safely in a kitchen. Examples of such a plastic film include, but are not limited to, a fluorine-containing film, a PPS film, and a polyester film. The screen 21 may be made of a flame retardant cloth. If the screen 21 is made of a plastic film, the screen 21 can be made transparent, so that the cook can see the cooking status on the gas table 12 even when the cook is on the cooking table 32 side. When the cook is on the side, the cooking table 32 side and the sink 33 side can be seen, and cooking becomes easier. The same effect can be obtained even if the screen 21 has a cloth made of a transparent plastic film.

(Embodiment 2)
The kitchen ventilation equipment which concerns on Embodiment 2 is shown in FIG. In this embodiment, the cooking heat source is the electromagnetic cooker 13, 13, 13, the ventilation hood 3 is attached to the ventilation hood 3, and the front side of the electromagnetic cooking table 14 is not a wall, but a roll-up screen. The second embodiment is different from the first embodiment in that the outer space is blocked by 2 ′. Hereinafter, points different from those of the first embodiment will be mainly described.

  In this embodiment, there is a wall 1 on the left side of the electromagnetic cooking table 14 provided with the electromagnetic cookers 13, 13, and the ventilation hood 3, and roll-up screens 2 'and 2 on the front and right sides. These are installed, and these block the space between the electromagnetic cooking table 14 and the ventilation hood 3 and the external space, and odors and smoke generated by cooking leak to the front and left and right of the electromagnetic cooking table 14. I will not put it out.

  Here, the electromagnetic cookers 13, 13, and 13 are cookers using electromagnetic induction heating (IH: induction heating), and generate a line of magnetic force by flowing an electric current through the coil inside the main body of the cooker. Is. When a metal pan is placed in the magnetic field lines, an eddy current is generated in the metal, and the pan itself generates heat due to the electric resistance of the metal, and can be cooked.

  In this embodiment, the ventilation fan 40 is installed in the upper part of the ventilation hood 3, and the odor, smoke, etc. which generate | occur | produced by cooking are sucked up and let out the building 31 through the duct 31.

Similar to the first embodiment, only the rear side is opened in this embodiment, but if the exhaust capacity is 200 m ³ / hour or more per 1 m ^{2 of} open area, there is substantially no odor or smoke leaking from the open surface. In the present embodiment, since the rear open area is 0.9 m ² and the exhaust of the ventilation fan is 350 m ³ / hour, odors and smoke are sucked up by the ventilation fan and do not leak backward. And there is no shield behind, and the cook can cook freely.

  The two roll-up screens 2 and 2 'of the present embodiment have the same form. That is, the shape, structure, material, etc. are the same. The kitchen of the present embodiment is a so-called face-to-face kitchen, and the odor and smoke generated by cooking can be surely leaked to the outside by simply attaching the roll-up curtains 2 and 2 'to such a kitchen. Can be prevented. In the present embodiment, since the cooking heat source is the electromagnetic cooker 13, 13, 13, the degree of flame retardance of the screen 21 may be lower than that in the first embodiment, for example, UL94VTM-2. Also good.

  In this embodiment, the same effect as that of the first embodiment can be obtained.

(Other embodiments)
The movable shielding member is not limited to the roll-up screen, and any movable member may be used as long as part or all of the movable shielding member can be moved or deformed to easily move the object from the cooking table. It doesn't matter. For example, a rail curtain type, a shutter type or a goodwill type may be used. Further, all three sides may be surrounded by a non-movable shielding member.

  The shape of the ventilation port is not limited to the ventilation hood, and any shape may be used as long as it is a suction port installed above the cooking heat source.

  If the roast-up screen has a built-in long screen, if the screen of the part being used becomes dirty, it can be used continuously by cutting and discarding that part and pulling out the new part from the tube. .

  A kitchen equipped with ventilation equipment is not limited to home use, and may of course be a commercial kitchen such as a restaurant.

  As described above, the kitchen ventilation system according to the present invention reliably prevents odors and smoke generated by cooking from leaking to the surroundings, and is useful as a kitchen ventilation system for home use or business use. .

It is a perspective view of the kitchen ventilation equipment which concerns on Embodiment 1. FIG. It is a perspective view of the kitchen ventilation equipment when winding up a roll-up screen. It is a perspective view of the kitchen ventilation equipment which concerns on Embodiment 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wall 2, 2 Roll-up screen 3 Ventilation hood 11 Gas stove 12 Gas stand 13 Electromagnetic cooker 14 Electromagnetic cooker 21 Screen 40 Ventilation fan

Claims (6)

A kitchen ventilation facility with a ventilation opening provided above the heat source for cooking,
The space between the cooking heat source and the ventilation opening is a kitchen ventilation facility in which three sides of the front, rear, left and right are shielded from the outside by a shielding member and one is opened.   The kitchen ventilation equipment according to claim 1, wherein at least one of the three sides blocked from the outside is blocked from the outside by a movable shielding member.   The kitchen ventilation equipment according to claim 2, wherein the movable shielding member is detachably attached.   The kitchen ventilation facility according to claim 2 or 3, wherein the movable shielding member is a roll-up screen.   The kitchen ventilation equipment according to any one of claims 1 to 4, wherein the cooking heat source is an electromagnetic cooker. The kitchen ventilation equipment according to any one of claims 1 to 5, wherein an exhaust amount from the ventilation port is 200 m ³ / hour · m ² or more with respect to an area of the one open surface.

Images