JP4588387B2 - Insect or dust-proof air shutter - Google Patents

Description

The present invention provides an insect proof or dust proof that can effectively prevent invasion of insects, dust, and the like by blocking with an air curtain composed of double air circulation flows having different directions at the entrance of a food factory, for example. The present invention relates to an air shutter.

  As a means to prevent insects and dust from entering the front doors of food factories, the method of forming an air wall at the front doors is very effective. Blow-down type that blows out the air curtain flow toward the bottom, up-down circulation type that blows out the air curtain flow downward from the upper part of the opening, sucks it from the floor pit part, and returns it upward in the duct, opposite side from the side of the opening Cross-flow type that blows out the air curtain flow horizontally toward the side, cross-flow circulation type that blows out the air curtain flow horizontally toward the opposite side from the side of the opening, sucks from the opposite side, and returns to the blow-out side through the duct, opening Air curtain flow is blown out from both sides of the section toward the center, and the blown air curtain flow is circulated and blown into the suction port on the same surface. Formula, and a cross flow counterblow such blowing horizontally at an angle to the air curtain flow from the opening next to both sides towards the center.

  For example, Patent Document 1 (Japanese Patent No. 2920759) discloses a crossflow type air shutter. In this method, air curtain airflow outlets that cross the passage space in the lateral direction are provided opposite to both side walls of the opening, and the outlet direction of each outlet is set at an appropriate angle from the respective outlet position. In the air curtain device oriented so as to cross each other in the passage space, the wind speed of the air curtain airflow on each side is made different from each other, with one side having a relatively high wind speed and the other side having a relatively low wind speed. By doing so, the turbulence of the airflow at the confluence of the air curtain airflows on each side, the generation of the vortex airflow due to pulsation, the accompanying airflow into the room, and the invading pests on it are suppressed.

Japanese Patent No. 2920759

Among the above-described methods, the cross-flow counter circulation type and the cross-flow counter type are considered to have a high blocking effect against insects, dust, etc., but these methods have the following problems.
In other words, the cross-flow counter-circulation type is a system in which a gate pillar type air curtain with a built-in fan is installed at the front, blows air from the left and right, hits the center, sucks the bounced air, and circulates it. It is difficult to bounce off the breeze due to the small suction area and disturb the air in the vicinity of the frontage, so that insects and dust may easily enter.

  In addition, the cross-flow type is a system in which a gate pillar type air curtain with a built-in fan is installed in the frontage, and air is blown out from the left and right, colliding with each other in the center. As with the cross-flow counter-circulation type, air around the frontage is disturbed, so that insects, dust, etc. may easily enter.

  Further, the method disclosed in Patent Document 1 is a method in which air with different wind speed vectors is blown from the left and right, weak wind speed vectors are merged with high wind speed vectors while colliding in the middle, and sucked in a different surface from the blowout surface. Actually, however, it is difficult to join the weak wind speed vector to the high wind speed vector while colliding air with different wind speed vectors on the way, disturbing the air near the frontage, and different from the blowout surface It seems that it is actually difficult to inhale by the surface.

  Each of the above-described conventional systems collides the air blown from the left and right, and thus disturbs the air in the vicinity of the frontage, which makes it easy for insects, dust, and the like to enter. In each of these methods, air is circulated by sucking the air that collides with each other at a place away from the blowing surface, which further promotes the turbulence of the air near the frontage.

  In view of the problems of the prior art, the present invention eliminates the air collision that each of the above-described conventional methods has performed, and circulates air in the plane of the opening (frontage), thereby turbulent air in the opening. It is an object of the present invention to provide an air shutter that eliminates as much as possible and thereby improves the effect of preventing the entry of insects, dust, and the like from the opening.

Insect or air shutter dustproof of the present invention is to achieve the object, forming a passage space formed by both side wall portions and a ceiling and a floor surface entrance to indoor space to be blocking target, the two side In an anti-insect or dust-proof air shutter that shields a passage space between opposing side wall surfaces of a wall portion with an air curtain airflow that traverses in the lateral direction,
Each of the opposite side wall surfaces is divided into a cross shape in the vertical direction and the horizontal direction to form four side wall parts (hereinafter referred to as divided regions), and an air outlet is provided in one of the opposite divided regions of the both side wall surfaces. However, air outlets and air suction ports are alternately provided in the divided areas adjacent to each other in the vertical and horizontal directions of the respective side wall surfaces so that the air suction ports are positioned on the other side, and the rear side and the front side of the passage space are provided. An air circulation flow whose directions are opposite to each other is formed between adjacent planes in a side plane, and a double air curtain is formed in the passage space by the air circulation flow .

  In the present invention, an air curtain is formed by a lateral air circulation flow within a plane that shields the passage space (frontage) without causing air blown out from both side walls. Further, an air curtain is formed by an air circulation flow in a direction opposite to the air circulation flow in another plane separated from the plane that shields the passage space (double curtain type).

  Insect-proof or dust-proof air curtains are often set at the frontage, which is the boundary between the outside and the building, and the air film at the frontage may collapse due to the influence of wind. However, in the air shutter of the present invention, even if one air circulation flow is disturbed by wind from the outside, the air curtain is maintained by another air circulation flow. In other words, the former air circulation flow plays an auxiliary role to catch the wind, and the formation of the air curtain can be completed by another air circulation flow.

In the present invention, in the divided regions on both side walls facing each other, the air outlets are located on one side, and the air suction ports are located on the other side. Are provided with an air outlet and an air suction port .
In this case, it is conceivable that the insect is stopped from entering due to the formation of an air film by the air circulation flow and the case where the insect gets on the air circulation flow. However, in the latter case, it will be sucked into the air suction port provided on either side wall part, and insects can be collected with a filter or the like installed inside each suction part or side wall part. .

Specific examples of anti-insect auxiliary device, for example insects may invading smell generated in the building, in which case the inside of the side wall portion of the upstream side of the air outlet, for example activated carbon, a photocatalyst or the like Install a deodorizing and deodorizing machine using
As another auxiliary device, a device that transmits a frequency that insects dislike, for example, a frequency such as an ultrasonic wave, is installed in the same place as described above.

Or a device for generating a smoke colored hate insects, Ri provided inside of the side wall portion of the upstream side of the air outlet, Oh Rui ozone generator inside the side wall portion of the upstream side of the air outlet A device may be provided and ozone may be generated to keep insects away.

According to the insect shutter or the dust-proof air shutter of the present invention, the air curtain is formed in the at least two separated planes crossing the passage space by the air circulation flow in the lateral direction having different directions in the respective planes. Since the air blown out from each other does not collide and an air circulation flow is formed in the passage space (frontage), the air circulation flow is not disturbed.
Since such an air circulation flow forms at least a double air curtain, insects, dust, and the like can be completely blocked. Since the double air curtains are independent from each other and do not act on each other to cushion the air film, the air circulation flow is not disturbed, and therefore a complete blocking effect can be achieved.

The Te present invention smell, a portion of one of the both side wall portions is provided an air outlet, an air suction port provided in the portion facing the air outlet of the other side wall portion, the other (the divided region of the side walls ) In the portion, the arrangement of the air suction port and the air outlet is reversed, and an air circulation flow in which the directions are opposite to each other between adjacent planes in the back side and the near side of the passage space is generated. By forming a double air curtain in the passage space by the air circulation flow , even if insects try to enter the place where the wind speed of the air circulation flow is weak, especially aiming at the air suction port, the air circulation Since it hits blown air with a high wind speed, it becomes difficult to enter.
Further , even if insects try to invade where the wind speed of the air circulation flow is weak, particularly the air suction port, the insect hits the blown-out air having a high wind speed of the air circulation flow, so that entry becomes difficult .

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in this example are not intended to limit the scope of the present invention only to specific examples unless otherwise specified. Only.
FIG. 1 is a perspective view showing a first embodiment of the present invention, and FIG. 2 is a perspective view showing a change in air flow when a foreign object enters in the first embodiment.

In FIG. 1 showing the first embodiment of the present invention, S is a passage space (frontage) formed by both side walls 1 and 2, the ceiling 3 and the floor 4 at the entrance to the indoor space to be blocked. The left and right side wall portions 1 and 2 are divided into side wall parts (divided regions) 1a, 1b, 2a, and 2b that form air circulation flows A and B, respectively.
5a, 5b, 6a and 6b are air outlets provided in each side wall part, and a blower fan (not shown) is built in each side wall part. 7a, 7b, 8a, 8b are air suction ports provided in the respective side wall parts, and in some cases, a suction fan may be incorporated in order to increase the wind speed of the air circulation flow.

In such a configuration, an air circulation flow A having an orientation as illustrated is formed between the side wall parts 1a and 2a on the front side in FIG. 1, and an air circulation flow A having a direction opposite to the air circulation flow A is formed between the side wall parts 1b and 2b on the back side. An air circulation flow B is formed.
Both the air circulation flows A and B are separated and independent from each other, and do not interfere with each other and disturb each other's air film.

Note in some cases, as insect auxiliary device, the inside of the side wall portion of the upstream side of the air outlet, deodorization deodorizing device as described above, ultrasonic transmitter, by installing a smoke generator or ozonizer , Prevent insect invasion.

According to the first embodiment, the double air circulation flows A and B that are separated and independent from each other and formed in different directions are formed in the frontage space so that the air blown out from the left and right does not collide with each other and the passage space (frontage ) Since the air circulation flows A and B are formed in S, the air circulation flow is not disturbed without interfering with each other.
Therefore, since a double air curtain is formed by such an air circulation flow, a complete blocking effect can be obtained, and insects, dust and the like can be completely blocked.

  Further, according to the first embodiment, even if insects try to enter a place where the wind speed of the air circulation flow is weak, particularly aiming at the air suction port, the insect hits the blowing air having a high air speed of the air circulation flow. It becomes difficult. Even if the air is sucked into the air suction port, by installing a filter or the like in each side wall part, insects can be collected by the filter.

  In the frontage S, people, objects, and vehicles enter and exit. In such a case, the apparatus of the first embodiment can prevent insects and dust from entering. As shown in FIG. 2, when the foreign object 11 is stagnating in the air circulation flows A and B, the air film formed in the frontage S is eliminated, but the suction area is increased in this embodiment. Therefore, the circulation flows C and D are newly formed on both sides of the foreign object 11, and thereby the invasion of insects, dusts and the like can be completely blocked.

  According to the present invention, it is suitable to be applied to a frontage of a food factory where it is necessary to prevent invasion of insects, dust, etc., and is separated from each other and does not interfere with each other at the same time. By forming the air curtain by the air circulation flow of the layers, it is possible to realize an air shutter that can completely block insects, dust, and the like with a simple and inexpensive structure.

1 is a perspective view showing a first embodiment of the present invention. It is a perspective view which shows the change of an air flow when a foreign material penetrate | invades in the said 1st Example.

S passage space (frontage)
A, B Air circulation flow C, D New circulation flow 1 Left side wall part 1a, 1b Left side wall part 2 Right side wall part 2a, 2b Right side wall part 3 Ceiling part 4 Floor surface 5a, 5b Left air outlet 6a, 6b Right Air outlet 7a, 7b Left air suction port 8a, 8b Right air suction port 11 Foreign matter

Claims (2)

Air that crosses the passage space between the opposite side wall surfaces of the both side wall portions is formed at the entrance to the indoor space to be blocked to form a passage space formed by both side walls, the ceiling, and the floor surface. In insect-proof or dust-proof air shutters that are shielded by curtain airflow,
Each of the opposite side wall surfaces is divided into a cross shape in the vertical direction and the horizontal direction to form four side wall parts (hereinafter referred to as divided regions), and an air outlet is provided in one of the opposite divided regions of the both side wall surfaces. However, air outlets and air suction ports are alternately provided in the divided areas adjacent to each other in the vertical and horizontal directions of the respective side wall surfaces so that the air suction ports are positioned on the other side, and the rear side and the front side of the passage space are provided. to form the air circulation flow direction each other between a plane adjacent in the side of the plane are opposite, insect or dust-proof, characterized in that the formation of the double air curtains into the passage space by the air circulation flow Air shutter The insect-proof or dust-proof device according to claim 1 , wherein a deodorizing and deodorizing machine, an ultrasonic transmitter, a smoke generator, or an ozone generator is provided inside the side wall portion on the upstream side of the air outlet . Air shutter.

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