JP4911572B2 - Equipment for removing suspended solids in the air - Google Patents

Description

  The present invention relates to an apparatus for removing suspended substances (dust, dust, pollen, fungi, odors, smoke, oil, fume, water vapor, chemical substances, etc.) in indoor air, and more specifically, air containing suspended substances. The present invention relates to an apparatus for adsorbing floating substances contained in air by attracting and contacting the surface of the adsorbent.

  Various substances float in indoor air by cooking, cleaning, smoking, etc. For this reason, conventionally, a comfortable indoor air environment is maintained by exhausting with a ventilation fan or a range hood, and purifying air with an air purifier.

  However, in general, an exhaust device such as a conventional ventilation fan often lacks exhaust capability. This is because when the exhaust capacity is improved, the temperature control in the room is impaired, so that the compromise is set to suppress the exhaust capacity in consideration of the maintenance of the temperature control.

  In the range hood, a grease filter is attached to a duct in the hood, and air containing suspended solids is passed through the grease filter so that suspended matter is removed and is not released to the outside air. However, there is a problem that the removal of suspended substances once attached to the grease filter is considerably complicated. For this reason, proposals have been made to reduce the adhering amount of suspended solids by devising the duct flow path, but the device becomes large and complicated, the design of the appearance is restricted, and harmony with the surroundings may be impaired There is.

Air cleaners are generally designed to maintain a comfortable air environment by allowing air containing suspended solids to pass through filters and adsorbents that remove organic matter. However, when air containing a large amount of suspended solids is generated by cooking or the like, even if the fan is driven at the maximum capacity, it cannot be sufficiently treated due to the pressure loss of the filter or the adsorbent. Therefore, a method for improving the intake / exhaust capacity by attaching fans before and after the adsorbent is proposed in Patent Document 1, but the problem of pressure loss of the adsorbent always remains. Further, Patent Document 2 discloses a gaseous impurity adsorption filter in which a plurality of adsorption sheets having a corrugated plate shape or a chevron plate shape are overlapped and arranged in a state where a gap is provided in parallel with the air flow direction. However, because of the corrugation or chevron between the filters, there is still a pressure loss of air passing through the filter.
JP 2006-22967 A Japanese Patent Laid-Open No. 10-165730

  The present invention has been made in view of the above-mentioned problems, and removes suspended solids that can efficiently remove suspended solids and minimize indoor airflow pressure loss to keep indoor air comfortable. It is an object to provide an apparatus.

  In order to solve the above-mentioned problems, the present invention is not a conventional filtration method in which air containing suspended solids is allowed to pass through the adsorbent, but the air containing suspended solids is guided and brought into contact with the surface of the absorbent to This is a surface contact type floating substance removing device that adsorbs from the surface of the adsorbent.

That is, the suspended solids removal apparatus of the present invention is
A casing provided with an air inlet, an air outlet, and a flow path from the air inlet to the air outlet, and having a surface in the vicinity of the air outlet ;
An induced airflow generating unit that is provided in the casing, sucks air from the intake port, and blows out the air from the outlet through the flow path to the vicinity of the surface ;
A blowout guide formed in the flow path so that the induced airflow is blown obliquely with respect to the front surface of the casing from the blowout opening;
The adsorbent attached to the surface of the casing on the downstream side of the induced airflow from the outlet of the casing ,
The air blown out from the outlet through the blowing guide is guided toward the surface of the casing to generate an induced air current, and air containing suspended solids is attracted to the induced air current.

  The induced airflow from the induced airflow generation unit is guided toward the surface by the Coanda effect and flows along the surface. Air containing suspended solids in the vicinity of the surface is attracted by the induced airflow and contacts the surface of the adsorbent. Thereby, the suspended solid contained in the air is adsorbed by the adsorbent.

The casing surface is preferably a flat surface .

The adsorbent, films, sheets, film, and the Turkey to have a shape selected from the group of plates preferred.

It is preferable that the film-like adsorbent is attached so as to be able to be wound from one direction to the opposite direction along the surface of the casing.

  The adsorbent is preferably made of a porous material.

  According to the present invention, the induced airflow from the induced airflow generation unit is induced toward the surface by the Coanda effect, and the air containing suspended solids in the vicinity of the surface is attracted to the induced airflow and contacts the surface of the adsorbent, Since the floating substance contained therein is adsorbed by the adsorbent, there is little airflow pressure loss, and the floating substance can be efficiently removed to keep indoor air comfortable.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings, but the present invention is not limited to these embodiments and examples.

  FIG. 1 is a schematic configuration diagram of an apparatus for removing suspended substances in air according to the present invention. The apparatus for removing suspended substances in the air according to the present invention includes a surface 1 provided in the air, an induced airflow generation unit 2 that generates an induced airflow A and blows out the induced airflow A along the surface 1; And an adsorbent 3 attached to the surface 1.

  The surface 1 is not limited to a flat surface, but may be any surface such as a curved surface, a folded surface, a cylindrical surface, a conical surface, a spherical surface, or the like depending on the use environment. The surface 1 may be a horizontal surface, a vertical surface, or an inclined surface inclined with respect to these surfaces. Furthermore, the surface 1 is preferably the surface of the member, but can also be the surface of the adsorbent 3 itself.

  The induction airflow generating unit 2 is a fan (blower) that sucks and discharges air, and specifically, various fans such as a crossflow fan, a sirocco fan, and a centrifugal fan can be used. it can. Among these, a cross flow fan that can uniformly discharge air in a direction perpendicular to the axis is preferable.

  The induced air A generated by the induced air generating unit 2 is blown out in the vicinity of the surface 1 as shown in FIG. For example, it may be blown off obliquely in a direction away from the surface from one end side of the surface 1 as shown in FIG. 1A, or parallel to the surface 1 from one end side of the surface 1 as shown in FIG. It may be blown out or may be blown obliquely or vertically toward the surface 1 as shown in FIGS. 1 (c) and 1 (d).

  The adsorbent 3 is preferably porous from the viewpoint of adsorption efficiency. The pore diameter is not particularly limited, but it is preferably as small as possible from the viewpoint of increasing the adsorption surface area. In addition, since the floating substance adsorption method in the apparatus of the present invention is a surface contact type, unlike the conventional filtration type, it is not necessary to allow the floating substance to pass through the adsorbent. That is, in the present invention, since it is not necessary to increase the air permeability of the adsorbent, the pore diameter of the adsorbent 3 can be made smaller than the adsorbent in the conventional filtration type. Further, the shape of the pore is not particularly limited, and may be, for example, a cylindrical shape, a quadrangular prism shape, an indeterminate shape, or the like. From the viewpoint of absorption ability by capillary action, an irregular shape is desirable. Further, from the viewpoint of the amount of adsorption, a larger porosity is desirable.

  The shape of the adsorbent 3 is not particularly limited, and can be freely selected according to the design, required performance, and the like. For example, a flat plate, a sheet, a film, a membrane, a plate, a rod, a tube, a fiber, a hollow fiber, or the like can be used. In addition, since the adsorption method of the apparatus of the present invention is a surface contact type, it is not necessary to determine the shape of the adsorbent in consideration of ventilation resistance unlike the filtration type.

  The material of the adsorbent 3 is not particularly limited, and any of organic, inorganic, and composite materials can be used. Further, an lipophilic, hydrophilic or amphiphilic adsorbent can be used in accordance with the components of the suspended substance. Examples of the lipophilic adsorbent include polyolefin (trade name Hypore, manufactured by Asahi Kasei Co., Ltd.), polystyrene, phenol resin, epoxy resin, polyester, oil removing film, activated carbon, and the like. Examples of the hydrophilic adsorbent include cellulose, epoxy resin, silica, titanium dioxide and the like. For example, when titanium dioxide is used, photocatalytic action and super hydrophilic effect can be expected. Examples of the amphiphilic adsorbent include cellulose derivatives and epoxy resins.

  The operation of the apparatus for removing suspended solids in the air according to the present invention having the above-described configuration will be described. The induced airflow A is guided from the induced air generating unit 2 toward the surface 1 by the Coanda effect, and along the surface 1. Flowing. An air stream B containing suspended solids in the vicinity of the surface 1 is attracted by the induced air stream A and contacts the surface of the adsorbent 3. Thereby, the suspended substance C contained in the airflow B is adsorbed by the adsorbent 3.

  FIG. 2-5 shows an application of the suspended substance removal apparatus 10 according to the present invention to an induction heating (IH) cooking range 11. The removing device 10 has a rectangular casing 12 made of a metal such as stainless steel, and the lower end of the casing 12 is rotatable to the rear end portion of the upper surface of the IH cooking range 11 via a hinge shaft 13. It is attached. When using the IH cooking range 11 as shown in FIG. 2, the removal device 10 stands up so that the casing 12 is inclined obliquely backward, and does not use the IH cooking range 11 as shown in FIG. In some cases, the casing 12 can be brought into a closed state by being brought down on the upper surface of the IH cooking range 11. A cross flow fan 14 and its drive motor 15 are incorporated in the lower part of the casing 12 of the removing device 10 as an induction air generating unit. The cross flow fan 14 is disposed with its axis horizontal. An air inlet 16 to the cross flow fan 14 is formed at the lower back of the casing 12, and an air outlet 17 from the cross flow fan 14 is formed at a substantially central portion of the front of the casing 12. An air flow path 18 is formed in the casing 12 from the cross flow fan 14 to the air outlet 17, and an air outlet guide 19 is formed at the upper end of the flow path 18 so that air is blown obliquely from the air outlet 17. Yes. A cartridge 22 in which a film-like adsorbent 21 is wound around a core tube 20 is mounted on the front left side of the casing 12. The film-like adsorbent 21 wound around the cartridge 22 is pulled out to the right to cover the front surface of the casing 12, and is fixed to a winding shaft 23 attached to the front right side of the casing 12. The film-like adsorbent 21 can be taken up by an operation handle (not shown) provided at one or both ends of the take-up shaft 23.

  The operation of the floating substance removing apparatus 10 for the IH cooking range 11 having the above-described configuration will be described. When using the IH cooking range 11, the drive motor 15 of the removing device 10 is driven to operate the cross flow fan 14. As a result, air is sucked into the cross flow fan 14 from the air inlet 16 on the back surface of the casing 12, and the air blown from the cross flow fan 14 passes through the flow path 18 in the casing 12, passes through the blowout guide 19, and then blows out the air outlet 17. Is blown out. The induced airflow A blown out from the air outlet 17 is guided toward the surface of the casing 12 by the Coanda effect and flows along the surface 12. On the other hand, the air flow B including floating substances C such as oil, smoke, and water vapor generated while cooking in the IH cooking range 11 is attracted by the induction air flow A and is adsorbed on the adsorbent 21 on the surface of the casing 12. Contact. As a result, the suspended matter in the air stream B containing the suspended matter is adsorbed by the adsorbent 21. The induction airflow A and the airflow B are exhausted to the outside from a range hood (not shown). The adsorbent 21 to which the suspended substance C has been adsorbed can wind up the dirty surface on the take-up shaft 23 by operating the handle of the take-up shaft 23 and draw out a new surface periodically.

  In addition, although the removal apparatus 10 of the said Example 1 is rotatably attached to the upper surface rear end part of the IH type cooking range 11, it can also be rotatably attached to either the right or left end part of the upper surface. Moreover, it can also attach separately to the wall hood of a kitchen, or the range hood of a ceiling separately from the IH type cooking range 11. Alternatively, the IH cooking range 11 may be attached with a slight inclination so as to face the cooking surface.

  In addition, the adsorbent 21 of the removal device 10 of the first embodiment is a cartridge type so that a new surface can be pulled out sequentially. However, the adsorbent 21 is formed in a sheet shape or a plate shape and attached to the surface of the casing 12, You may make it replace | exchange for a new thing regularly.

  Furthermore, although the adsorbent 21 of the removal apparatus 10 of the first embodiment is wound up in the left-right direction, it may be wound up in the up-down direction. In this case, since the lower part of the adsorbent tends to get dirty, it is desirable to provide a cartridge on the upper side and a take-up shaft on the lower side to wind it downward.

  6 and 7 show a case where the suspended substance removing apparatus 30 according to the present invention is applied to a smoke separating apparatus 31 in a smoking room. The smoke separator 31 includes a support base 32, a fan casing 33, and a guide casing 34, which are formed of a metal such as stainless steel. The support base 32 has a cylindrical shape, and a lower end thereof is fixed upright on the floor surface of the chamber. An ashtray 35 is formed on the upper end surface of the support base 32. The ashtray is not necessarily provided on the support base 32, and may be appropriately installed in the room. The fan casing 33 includes a large-diameter portion 33a, a truncated cone portion 33b, and a small-diameter portion 33c in order from the bottom, and the lower end of the large-diameter portion 33a is connected to the support base 32 via four support columns 36 each formed of a circular tube. Supported and fixed at the top. Inside the fan casing 33, a centrifugal fan 37 and its drive motor 38 are incorporated as an induction air generating part. The power cord 39 of the drive motor 38 is guided along the support column 36 to the inside of the support base 32, pulled out from the lower end of the support base 32, and connected to an outlet. The lower end of the large-diameter portion 33 a of the fan casing 33 serves as an air inlet 40 for the centrifugal fan 37. The induction casing 34 has a cylindrical shape, and the lower end thereof is closed by a hemispherical lid 41 and is inserted into the small-diameter portion 33c of the fan casing 33, and the inner surface of the small-diameter portion 33c of the fan casing 33 through four ribs 42. It is supported and fixed to. A gap is provided between the lower outer surface of the induction casing 34 and the small diameter portion 33 c of the fan casing 33, and this gap serves as an air outlet 43 from the centrifugal fan 37. The upper end of the induction casing 34 is closed with a flat plate 44. A sheet-like adsorbent 45 is attached to the outer peripheral surface of the induction casing 34.

  An exhaust port 46 is provided in the ceiling above the smoke separator 30, and an exhaust duct 48 is provided from the exhaust port 46 to the exhaust fan 47. An air supply duct 51 is provided from the air supply fan 49 to the air supply port 50 on the ceiling outside the entrance of the smoking room. The air supplied from the air supply port 50 is blown down to the entrance of the smoking room, and a part of the air enters the smoking room. Thereby, the air in a smoking room does not go outside from an entrance, and smoke separation is achieved.

  The operation of the suspended substance removing device 30 by the smoke separator 31 having the above-described configuration will be described. When the smoke separator 31 is used, the centrifugal motor 37 is operated by driving the drive motor 38 of the removal device 30. As a result, air is sucked into the centrifugal fan 37 from the suction port 40 at the lower end of the fan casing 33, and the air blown from the centrifugal fan 37 passes through the flow path in the fan casing 33, and the outlet 43 at the upper end of the fan casing 33. Is blown out. The induced airflow A blown out from the outlet 43 is guided toward the surface of the induction casing 34 by the Coanda effect and flows along the surface. On the other hand, the air flow B of air containing floating substances C such as cigarette smoke generated by smoking in the room is attracted by the induction air flow A and contacts the adsorbent 45 on the surface of the induction casing 34. As a result, the floating substance C in the air stream B including the floating substance C is adsorbed by the adsorbent 45. The induced airflow A and the airflow B are exhausted to the outside by an exhaust fan 47 from an exhaust port 46 on the ceiling through an exhaust duct 48. The adsorbent 45 to which the suspended substance C has been adsorbed can be appropriately replaced.

  In the second embodiment, the sheet-like adsorbent 45 is attached to the outer peripheral surface of the induction casing 34 in a replaceable manner. However, as in the first embodiment, the film-like adsorbent is wound around the core tube. Alternatively, the cartridge may be attached to the induction casing 34, and the adsorbent drawn out from the cartridge may be wound around the outer periphery of the induction casing 34 and wound around a winding shaft attached to the induction casing 34.

  The present invention is not limited to an IH cooking range or a smoke separator, but is used as a floating substance removal device in a place where a gas stove or electric stove is used in a home or a restaurant, or in a factory that generates harmful substances such as a welding machine. can do.

The schematic block diagram which shows the concept of the floating substance removal apparatus of this invention. The side view which shows the use condition of the induction heating (IH) type cooking range which applied the removal apparatus of the suspended solids concerning 1st Example of this invention. The side view which shows the state which closed the removal apparatus of the IH type cooking range of FIG. The front view of the removal apparatus of the IH type cooking range of FIG. The top view which shows the state which closed the removal apparatus of the IH type cooking range of FIG. The indoor arrangement | positioning figure of the smoke separation device to which the removal apparatus of the suspended solids concerning 2nd Example of this invention is applied. The enlarged front view of the smoke separation apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 surface 2 induction | guidance | derivation airflow generation part 3 adsorbent 10 removal apparatus 11 IH type cooking range 12 casing 14 crossflow fan 21 adsorbent 30 removal apparatus 31 smoke separation apparatus 34 induction casing 37 centrifugal fan 45 adsorbent

Claims (5)

A casing provided with an air inlet, an air outlet, and a flow path from the air inlet to the air outlet, and having a surface in the vicinity of the air outlet ;
An induced airflow generating unit that is provided in the casing, sucks air from the intake port, and blows out the air from the outlet through the flow path to the vicinity of the surface ;
A blowout guide formed in the flow path so that the induced airflow is blown obliquely with respect to the front surface of the casing from the blowout opening;
The adsorbent attached to the surface of the casing on the downstream side of the induced airflow from the outlet of the casing ,
Air that is blown out from the outlet through the blowout guide is guided toward the surface of the casing to generate an induced airflow, and air containing suspended solids is attracted to the induced airflow. Equipment for removing suspended solids. The apparatus of claim 1, wherein the casing has a flat surface .   The apparatus according to claim 1 or 2, wherein the adsorbent has a shape selected from the group consisting of a film, a sheet, a film, and a plate. The apparatus for removing suspended substances in air according to claim 3, wherein the film-like adsorbent is installed so as to be able to be wound from one direction to the opposite direction along the surface of the casing.   The apparatus for removing suspended substances in air according to any one of claims 1 to 4, wherein the adsorbent is made of a porous material.

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