WO2004072558A1 - Procede et dispositif de ventilation locale consistant a guider et separer l'ecoulement d'air - Google Patents

Procede et dispositif de ventilation locale consistant a guider et separer l'ecoulement d'air Download PDF

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Publication number
WO2004072558A1
WO2004072558A1 PCT/JP2004/001345 JP2004001345W WO2004072558A1 WO 2004072558 A1 WO2004072558 A1 WO 2004072558A1 JP 2004001345 W JP2004001345 W JP 2004001345W WO 2004072558 A1 WO2004072558 A1 WO 2004072558A1
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WO
WIPO (PCT)
Prior art keywords
exhaust
air
airflow
suction
blow
Prior art date
Application number
PCT/JP2004/001345
Other languages
English (en)
Japanese (ja)
Inventor
Yoshiaki Kanaya
Original Assignee
Yoshiaki Kanaya
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yoshiaki Kanaya filed Critical Yoshiaki Kanaya
Priority to US10/545,383 priority Critical patent/US20060154590A1/en
Priority to JP2005504962A priority patent/JP4145922B2/ja
Publication of WO2004072558A1 publication Critical patent/WO2004072558A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2028—Removing cooking fumes using an air curtain
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F2007/001—Ventilation with exhausting air ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains

Definitions

  • the present invention relates to an exhaust method and a local ventilation method, and an exhaust device, a local ventilation device and a ventilation system, and more specifically, requires exhaust and ventilation of factories, kitchen rooms, smoking rooms, toilets, and the like.
  • the sources of pollutants that cause contaminated air can be identified in a part of the room, and the contaminated air can be transmitted to the human body such as hot air flow, water vapor, odor, cigarette smoke, oil smoke, dust air, etc. It relates to exhaust ventilation and local ventilation technology that is effective when it is not so harmful. Background art
  • the generated contaminated air mixes with the indoor atmosphere
  • a so-called general ventilation method is used in which the air in the entire indoor space is replaced in the diluted state.
  • a general ventilation system in a room that requires a certain level of habitability and workability for example, a ventilation system in a kitchen room, as shown in Fig. 19, is a combustion-heating cooking system that is a source of pollutants.
  • the system is configured as a general ventilation system that ventilates the entire kitchen room where device a is placed close to the interior wall. That is, a suction opening c for the exhaust duct b is opened in the ceiling above the cooking appliance a, and a duct exhaust fan (not shown) is provided at the outdoor end of the exhaust duct b. .
  • An exhaust hood e that captures the contaminated air consisting of the hot jet d of contaminants generated by the combustion heating of the cooking appliance a is attached and connected to the suction opening c to prevent the diffusion of the contaminated air. It is planned.
  • an air supply port h of an air supply datum g having an air supply box f is opened, and an air conditioner i is provided.
  • an exhaust duct k provided with a ceiling exhaust fan i is opened on the ceiling near the opening m remote from the cooking appliance a.
  • the hot jet d of pollutants generated by the combustion heating of the cooking appliance a is By driving the exhaust fan for the exhaust duct b, the air is collected by the exhaust hood e and the suction opening c into the exhaust duct b and exhausted to the outside. The air is exhausted outside the room through an exhaust duct k opening near the opening m by driving the ceiling exhaust fan j.
  • fresh outdoor air is supplied through the air supply potter f of the air supply duct g by driving the air supply fan for air duct (not shown). The supply air naturally flows from the window m in the kitchen room. As a result, the entire kitchen room is ventilated.
  • ventilation air and air conditioning capacity means that the capacity of ventilation and air conditioning equipment will increase, and the initial and running costs of ventilation and air conditioning equipment will increase.
  • an increase in the capacity of ventilation and air conditioning equipment means an increase in the electrical capacity of the equipment, and such an increase in the amount of energy used increases the generation of CO and CO2, which are global warming gases. Will be invited.
  • factory ventilation creates harmful substances for the human body, so the legal standards are strict.
  • the source of harmful pollutants is enclosed by a partition, and workers' work is inserted into the partition. Partial or local ventilation methods with a draft chamber are adopted as effective.
  • the so-called push-pull uniform flow method is implemented as an effective local ventilation method.
  • the source of contaminants is wrapped in a uniform flow by the blowout (push) airflow and the suction (pull) airflow, and the air balance is locally completed.
  • the local ventilation method based on the push-pull uniform flow method encloses the pollutant generation source and balances the wind speed and air volume of the blow-in guide airflow and the suction exhaust flow in the entire surrounding space.
  • the air volume increases at the same time.
  • the ventilation method based on the delivery ventilation method is a general ventilation method, not a local ventilation method, and is directed to the exhaust direction on the assumption that the exhaust of the automobile accumulates and accumulates on the ceiling of the indoor parking lot.
  • the effect is that the exhaust efficiency improves, but the air volume does not decrease. Also, since many small delivery fans are installed on the ceiling, noise is high.
  • an exhaust device p composed of a suction exhaust flow generation unit q and a blow induction flow generation unit r is provided as a main part.
  • the suction exhaust flow generation section q has a structure in which a suction opening t is provided at the ceiling position above the contaminant generation source s such as cooking equipment, etc., and an exhaust fan u generates an upward suction exhaust flow V continuing to the outside of the room. It has been.
  • induction air The flow generation part r has a blowout opening w at a position near the side of the pollutant generation source s, and has a structure in which a blowout fan X generates an upward blowout induced airflow y.
  • the outlet opening w is provided at a position that does not interfere with the working range of the worker M.
  • the present invention further improves this local ventilation system to reduce the amount of ventilation and air-conditioning capacity as much as possible by reducing the amount of external air introduced by air supply to the air-conditioning load.
  • the primary objective is to provide exhaust and local ventilation techniques that can reduce equipment capacity without waste.
  • Another object of the present invention is to reduce the amount of ventilation and air conditioning capacity as much as possible, so that the existing power supply capacity and air conditioning capacity can be spared, and the existing ducts etc. can be effectively used as they are. To provide exhaust and local ventilation techniques that can be used. Disclosure of the invention
  • the exhaust method of the present invention is a source of polluted air.
  • a method for exhausting contaminated air in the vicinity of a source of contaminants in a room where the sources of contaminants are present which generates an upward suction exhaust flow extending upward from above the sources of contaminants to the outside of the room.
  • the contaminated air is entrained and is forcibly collected and delivered to the suction exhaust stream.
  • the blow induction airflow is set so as to blow out toward the inside of the suction opening of the suction exhaust flow, and the suction opening is viewed in a plane, and substantially the entire contaminant generation source is viewed. And are formed so as to overlap.
  • the blow-out induced airflow is covered by indoor air or outdoor air.
  • the first local ventilation method of the present invention is a method of locally ventilating a room where a contaminant generating source causing contaminated air is present, wherein the exhaust method is applied to the contaminant generating source.
  • the exhaust method is applied to the contaminant generating source.
  • a second local ventilation method of the present invention is a method of locally ventilating a room in which a contaminant generating source causing contaminated air is present.
  • a downward blow supply air flow is generated from the surrounding area of the suction exhaust flow suction opening, and the air supply function of the blow supply air flow causes the air to flow out of the exhaust area of the suction opening.
  • the contaminated airflow is forced back into the suction opening again.
  • the wind of the suction exhaust flow is By setting the air volume in accordance with the value obtained by adding the air volume of the above-mentioned blowing induction airflow, the amount of contaminated air around the above-mentioned pollutant generation source induced by the blowing induction airflow, and the amount of air supply, And local balance are established at the same time.
  • the exhaust device of the present invention implements the exhaust method described above, wherein a suction opening is provided at a position above the contaminant generation source, and a suction exhaust flow generating an upward suction exhaust flow continuing to the outside of the room.
  • Means, and a blowout opening provided at a position near the side of the contaminant generation source, and blowout induction airflow generation means for generating an upward blowout induction airflow wherein the blowout induction airflow generation means comprises: Is set so as to blow out toward the inside of the suction opening.Contaminated air in the vicinity of the contaminant generation source is generated by the action of the blow-out guide air flow generated by the blow-out guide air flow generating means. It is configured to be wound and forcibly collected and delivered to the suction exhaust stream.
  • the exhaust duct of the suction exhaust flow generating means has a distal end opened to the outside of the room and a base end communicated with an exhaust box in the form of a box-shaped container.
  • the above-mentioned suction opening is opened facing the room.
  • indoor air or outdoor air is used as an air source of the above-mentioned blowing induction airflow generating means.
  • the suction opening is arranged and formed so as to substantially overlap with the entire contaminant generation source when viewed in a plane.
  • the blowing induction airflow generating means may be provided at the outer peripheral portion of the suction opening.
  • An exhaust hood is provided to prevent diffusion of the blow-in induced airflow and the entrained flow of the contaminated air induced by the blow-in induced airflow, and an outer peripheral wall of the exhaust hood has an upward slope toward the suction opening. Preferably it is a wall.
  • a first local ventilation device of the present invention is a device for locally ventilating around a contaminant generation source in a room where a contaminant generation source causing contaminated air is present,
  • the exhaust device is provided, and a predetermined amount of air is supplied from an appropriate location, so that a room and a local balance are simultaneously established.
  • the second local ventilation device of the present invention is a device for locally ventilating around the contaminant generation source in a room where the contaminant generation source causing the contaminated air is present
  • the exhaust device is provided for the substance generation source
  • air supply means is provided for generating a downward blow air supply flow from a portion around the P inlet of the exhaust flow generation means. It is characterized in that a contaminated airflow that is about to overflow into the exhaust area of the suction opening is forcibly pushed back into the suction opening again by an air curtain action of the supply airflow.
  • the suction air flow rate of the suction exhaust flow generation means is the blow air flow rate of the blow induction air flow generation means, the blow air flow rate of the supply air supply means, and the blow air flow of the blow induction air flow generation means.
  • the value is set in accordance with the value obtained by adding the amount of contaminated air around the contaminant source, which is induced by the induced airflow, so that the room and the local balance are simultaneously established.
  • an air supply means for generating a downward blow air supply flow is provided, and by the air curtain action of the blow air supply flow of the air supply means, a contaminated air stream which is about to overflow to the outer periphery of the suction opening is forcibly re-entered into the suction opening. It is configured to be pushed back to.
  • the outlet opening of the air supply means is provided integrally with the outer peripheral portion of the exhaust hood provided at the outer peripheral portion of the suction opening. Is provided at a position at a ceiling level where the exhaust hood is attached.
  • the suction air flow rate of the suction exhaust air flow generation means is based on the blow air flow rate of the blow induction air flow generation means, the blow air flow rate of the air supply means, and the pollutant generation induced by the blow induction flow of the blow induction air flow generation means. It is desirable to set the value so as to correspond to the value obtained by adding the amount of contaminated air around the source, so that the indoor and local balances are simultaneously established.
  • the local ventilation device is provided for the contaminant generation source in the room where the contaminant generation source causing the contaminated air is present, and the room and the local balance are simultaneously established. It is characterized by having such a configuration.
  • the room shall be equipped with supplementary ventilation means to supplement the ventilation volume.
  • This supplementary ventilation means shall be provided manually or in the case where the required ventilation volume is insufficient in areas other than the local ventilation area by the local ventilation system. It may be configured to be automatically driven by a concentration sensor or the like so that the indoor and local balances are established at the same time.
  • the above-mentioned suction exhaust airflow and the blowout induction airflow form a highly controllable upward uniform airflow that passes through a position near the periphery of the pollutant generating source that causes the polluted air, and Due to the action of the airflow, contaminated air near the source of the pollutants is forcibly collected and delivered to the suction exhaust stream.
  • a flow of air from a nearby position to the suction opening of the suction exhaust flow is forcibly created in the room, and this air flow entrains the contaminated air and is delivered to the suction opening of the suction exhaust flow.
  • the upward uniform airflow for forcibly exhausting the contaminated air can pass through the vicinity of the contaminant generation source and be exhausted without enveloping the contaminant generation source. There is no interference, and there is no loss of comfort and workability.
  • the end of the exhaust duct of the intake exhaust flow generating means is opened to the outside of the room, and the base end of the exhaust duct is communicated with an exhaust box in the form of a box-shaped container.
  • the position of the suction opening can be freely set in the range of the exhaust surface side of the exhaust pod, and a source of pollutants such as kitchen equipment This will increase the degree of freedom in the layout and promote the effective use of existing ducts.
  • FIG. 1 is a front view showing a local ventilation device according to a first embodiment of the present invention. You.
  • FIG. 2 is a plan view showing the same local ventilation device.
  • FIG. 3 is a cross-sectional view along the line AA or BB in FIG. 2 showing the same local ventilation system.
  • FIG. 4 is a sectional view taken along the line C-C in FIG. 2 showing the same local ventilation system.
  • FIG. 5 is a plan view showing a suction exhaust flow generating portion and an air supply device of the local ventilation device.
  • FIG. 6 is a plan view of an arrangement showing the blow-out airflow generating section of the local ventilation device in relation to a combustion heating type cooking appliance.
  • FIG. 7 is a front view showing a local ventilation device according to a second embodiment of the present invention.
  • FIG. 8 is a front view showing a local ventilation device according to a third embodiment of the present invention.
  • FIG. 9 is a front view showing a local ventilation device according to a fourth embodiment of the present invention.
  • FIG. 10 is a side view showing a local ventilation device according to a fifth embodiment of the present invention.
  • Fig. 11 shows the intake exhaust flow generating section and the air supply device of the local ventilation system.
  • Fig. 11 (a) is a plan view
  • Fig. 11 (b) is a front view
  • Figure (c) is a bottom view.
  • Fig. 12 shows the blow-out induced airflow generating section of the local ventilation device.
  • Fig. 12 (a) is a plan view
  • Fig. 12 (b) is a front view.
  • FIG. 13 shows a blow-out induced airflow generating portion of the local ventilation device according to the sixth embodiment of the present invention.
  • FIG. 13 (a) is a plan view
  • FIG. 13 (b) is a front view
  • Fig. 13 (c) is a side view.
  • Fig. 14 shows a blow-out induced airflow generating section of the local ventilation device according to the seventh embodiment of the present invention.
  • Fig. 14 (a) is a plan view
  • Fig. 14 (b) is a front view
  • Fig. 14 (c) is a side view.
  • FIG. 15 shows a blow-out induced airflow generating section of the local ventilation device according to the eighth embodiment of the present invention.
  • FIG. 15 (a) is a plan view
  • FIG. 15 (b) is a front view
  • FIG. FIG. 15 (c) is a side view.
  • FIG. 16 is a plan view showing a configuration of a smoking room provided with a local ventilation device according to a ninth embodiment of the present invention as a smoke separating device.
  • FIG. 17 is a front view of the smoking room in FIG. 16 taken along the line AA in FIG.
  • FIG. 18 is a side view of the smoking room similarly viewed from the direction of arrows BB in FIG.
  • FIG. 19 is a front view showing a local ventilation device that is Embodiment 10 of the present invention.
  • FIG. 20 is a sectional view corresponding to FIG. 3 showing the same local ventilation device.
  • FIG. 21 is a cross-sectional view corresponding to FIG. 4 showing the same local ventilation device.
  • FIG. 22 is a schematic configuration diagram showing a conventional kitchen room ventilation system.
  • FIG. 23 is a schematic configuration diagram showing another conventional local ventilation device for a kitchen room.
  • Embodiment 1 Embodiment 1
  • FIGS. 1 and 2 A local ventilation device according to the present invention is shown in FIGS. 1 and 2.
  • This local ventilation system PV is a device that locally ventilates around the source of contaminants in a room where the sources of contaminants that cause contaminated air are present. It is intended for indoor rooms that require good workability and workability, specifically for kitchen rooms in relatively large buildings such as schools and hospitals.
  • an exhaust device E is provided for the combustion heating type cooking appliance 1 such as a table stove, which is a source of pollutants
  • an air supply device (air supply means) S is provided for the exhaust device E. Is provided physically.
  • the exhaust device E is mainly composed of a suction-exhaust-flow generating section (suction-exhaust-flow generating means) 2 and a blowout-inducing-airflow-generating section (outlet-inducing-airflow-generating means) 3.
  • the suction exhaust flow generating section 2 has a structure in which a suction opening 5 is provided at a position above the cooking appliance 1 to generate an upward suction exhaust flow 6 that continues to the outside of the room.
  • the suction exhaust stream 6 functions as an air stream that mainly sucks and exhausts air contaminated by contaminants generated from the cooking appliance 1.
  • the suction exhaust flow generating section 2 is specifically provided on the ceiling above the cooking appliance 1.
  • the tip 10 a of the exhaust duct 10 is opened to the outside of the room, and the grave end 1 is provided.
  • 0 b communicates with the exhaust box 11, and the exhaust box 11 is provided with the suction opening 5 facing the room.
  • An exhaust fan 12 which is an exhaust flow generation source is provided at a tip 10 a of the exhaust duct 10.
  • the exhaust box 11 is for ensuring the degree of freedom of opening the suction opening 5 which is the indoor opening of the exhaust duct 10 and is in the form of a box-shaped container.
  • the suction opening 5 which is the indoor opening of the exhaust duct 10 and is in the form of a box-shaped container.
  • three rectangular suction openings 5a, 5b and 5c are provided on the rectangular bottom surface. ing.
  • these suction openings 5a, 5b, and 5c are arranged and formed so as to substantially overlap with the entire combustion-heating type cooking appliance 1 in the room as viewed in a plane, and have a trapping area. Is set to be as large as possible.
  • the first suction opening 5a is provided at a position directly above the first table stove 1a of the combustion heating type cooking appliance 1, and has a shape and dimension covering the table stove 1a as much as possible. It has been. Further, the second and third suction openings 5b and 5c are provided at positions near directly above the second to fourth table stoves 1b to 1d of the combustion heating type cooking appliance 1, and are possible. As far as possible, the dimensions are such that they cover these table openings 1b to 1d.
  • the axial direction of the connection opening to which the base end 10 b of the exhaust duct 10 is connected that is, the duct connection direction X
  • the axial direction of the suction opening 5 that is, the suction opening exhaust flow It is configured so that the direction Y intersects, thereby dispersing the airflow.
  • the exhaust box 11 is formed in a rectangular parallelepiped shape, and two exhaust ducts 10 and 10 are connected to one vertical side of the exhaust box 11.
  • the three suction openings 5a to 5c are opened, and the intersection angle between the duct connection direction X, X and the suction opening exhaust flow direction ⁇ , ⁇ ,... is set to be a right angle.
  • a grease removing device (grease removing means) 13 for separating and removing the oil component in the exhaust gas is provided inside the exhaust box 11.
  • This grease removing device 13 is specifically in the form of a grease filter, In the box 11, it is interposed between the suction openings 5 (5a to 5c) and the connection openings of the exhaust ducts 10 and 10. With such a configuration, when a blow-out induced airflow described later is blown out toward the suction opening 5 (5a to 5c), it collides with the grease removing device 13 and scatters to generate turbulence. Is effectively prevented.
  • an exhaust hood 15 is provided on the outer peripheral portion of the suction opening 5 (5a to 5c) on the chamber side.
  • the exhaust hood 15 is for capturing the configuration and operation of the blow-out induced airflow generating section 3 described later.
  • the exhaust hood 15 prevents the diffusion of the blow-in airflow from the blow-out airflow generation section 3 and the contaminated air entrained by the blown airflow, and reliably captures these exhaust gases. It is provided for the purpose of improving the exhaust effect.
  • the exhaust hood 15 of the illustrated embodiment has an inner peripheral wall 15a formed on an inclined wall having an upward slope toward the suction opening 5 (5a to 5c). That is, as described above, the catching area of the suction opening 5 (5a to 5c) is set large, but on the other hand, the inner peripheral wall 1 of the exhaust hood 15 is designed so that the suction opening area does not become excessive.
  • 5a is a sloped wall having a slope rising from the lower end thereof toward the suction opening 5 (5a to 5c), specifically, the bottom surface 11a of the exhaust box 11. Therefore, the construction is such that the spout of the polluted airflow is suppressed.
  • the blow-out induction airflow generating section 3 is for sucking contaminated air in the vicinity of the combustion heating type cooking appliance 1 and forcibly collecting and delivering it to the exhaust flow 6, and the blowout opening 2 is provided at a position near the side of the cooking appliance 1. 0 is provided so as to generate an upward blowing induction airflow 21.
  • the blowing induction airflow 21 from the blowing opening 20 is It is set so as to blow out toward the inside of the suction opening 5, so that most of the blow-out induced airflow 21 is swallowed by the suction-exhaust flow 6.
  • the configuration is such that the blow-out induced airflow 21 does not collide with and scatter around the periphery of the suction opening 5 to cause turbulence.
  • the blowing induction airflow generating unit 3 of the illustrated embodiment includes three induction airflow generation devices corresponding to the first to fourth table stoves 1 a to ld of the combustion heating type cooking appliance 1. 22 a, 22 b and 22 c are provided. The position of these induction airflow generators 22a, 22b, 22c is determined by the working range of the cook (not shown) as the worker, that is, in FIG. It is set so as not to interfere with the outer peripheral part.
  • the first induction airflow generator 2 2a is provided in contact with the back of the first table stove 1a of the combustion heating type cooking appliance 1, and the second induction airflow generator 2 2b is provided between the second table stove 1b and the fourth table stove 1d, and the third induction airflow generating device 22c is connected to the third tape notch opening 1c. It is provided between the fourth table stove 1d.
  • induction airflow generators 22 a, 22 b, and 22 c all have the same basic structure, and are buried in the casing of the combustion heating type cooking appliance 1, that is, the cooking table 25 in an upright manner.
  • the induction airflow generators 22a, 22b, and 22c have a hollow vertical rectangular parallelepiped-shaped device body 26 with an upper portion.
  • a blowout nozzle 28 having a blowout opening 20 is provided, and blowdown fans 27, 27 serving as an induced airflow source are provided horizontally below the device main body 26.
  • the air source is indoor air.
  • the intermediate cylindrical portion 26a of the device main body 26 is structured so as to function as a rectifying portion for rectifying the induced airflow sent to the blowing nozzle 28 by the blowing fans 27,27.
  • Each blowout nozzle 28 is configured such that its axis extends toward the inside of the suction opening 5 (5a to 5c) of the exhaust box 11 described above.
  • the blowout nozzle 28 of the first induction airflow generator 22a is inclined upright so that its axis passes through substantially the center of the first suction opening 5a.
  • the blow-out induced airflow 21 blows upward from the blowout opening 20 toward the interior of the suction opening 5a in an inclined manner, while the second and third guided airflow generators 2 2b
  • the outlet nozzles 28 and 28 of the nozzles 22c and 22c stand upright so that their axes pass through substantially the center of the second and third suction openings 5b and 5c, respectively.
  • the airflow guide airflow 21 is erected, and is blown vertically upward from the blowout opening 20 into the suction openings 5b and 5c, respectively.
  • the exhaust fans 12 and 12 of the intake exhaust flow generating section 2 are driven to drive the upward suction that continues into the suction openings 5 (5a to 5c).
  • Exhaust flows 6, 6, 6 are generated, and blow-off nozzles in each of the guide air flow generating devices 22a, 22b, 22c are driven by the blower fans 27, 27, ... of the blow-in guide airflow generating section 3.
  • Upward blow-induced airflows 21, 21, 21 which linearly extend from the blowout opening 20 of 22 to the suction openings 5 (5a to 5c) are generated.
  • the upward and uniform airflow airflow in which the airflow state in an arbitrary airflow section does not change with time and is always uniform
  • both airflows 6 and 21 is generated by the combustion heating type cooking appliance. 1 is formed so as to pass through the vicinity of the surrounding area, 9 Due to the attraction of the streams 21 1, 21, 21, the contaminated air near the periphery of the combustion heating type cooking appliance 1 including the hot jet of pollutants generated by the combustion heating of the combustion heating type cooking appliance 1 sucks the above Forced collection and delivery to exhaust stream 6.
  • the above-mentioned suction opening 5 (5a to 5c) immediately before the contaminated air that has accumulated on the lower surface of the ceiling 4 5 without being sucked and diffuses into the room due to the airflow generated in the room due to air conditioning or other causes. It is desirable to set it so as to be drawn into the exhaust pox 11.
  • the actual cross section of the air flow is a combination of uniform rectification and vortex flow (entrainment flow) toward the suction opening 5 (5a to 5c). Is basically a rectification, but includes not a turbulent flow but a swirling flow (entrainment flow) with little change in time series.
  • the contaminated air delivered to the suction exhaust stream 6 in this manner is discharged to the outside together with the suction exhaust stream 6 via the exhaust box 11 and the exhaust duct 10.
  • the oil present in the suction exhaust stream 6 containing the contaminated air is separated and removed by the dust removal device 13 in the exhaust box 11, and the grease removing device 13 is connected to the exhaust pox 11 1. Because of the arrangement, the blow-out induced airflows 21, 21, 21 do not collide with the grease removing device 13 and become turbulent, so that a smooth induced exhaust effect can be secured.
  • the air supply device S which is provided integrally with the exhaust device E and similarly configures the main part of the local ventilation device PV, has a suction opening 5 (5a to 5c) of the suction exhaust flow generation unit 2. ), A downward blow air supply flow 30 is generated from the surrounding area.
  • the air supply opening 35 is provided integrally with the exhaust hood 15, in other words, the exhaust hood 15 is in the form of a body-shaped air supply / exhaust hood.
  • the specific configuration of the air supply device S is such that the base end 40a of the air supply duct 40 is opened to the outside and the front end 40b is integrally formed on the outer peripheral portion of the exhaust hood 15 described above.
  • the air supply box 41 is provided so as to communicate with the air supply box 41, and the air supply opening 35 is opened in the room.
  • an air supply end 42 which is a supply air flow source, is provided.
  • the air supply pox 41 is in the form of a rectangular annular box-shaped container surrounding the entire outer periphery of the exhaust hood 15.
  • the air supply box 41 of the illustrated embodiment two air supply ducts 40, 40 are connected, and as shown in FIG. 2 and FIG. An air supply opening 35 extending over the bottom surface is provided. Also, as in the case of the exhaust box 11 described above, as shown in Fig. 1, the connection of the air supply box 41 to which the ends 40b and 40b of the air supply ducts 40 and 40 are connected.
  • the axial direction of the opening that is, the duct connection direction XI
  • the axial direction of the air supply opening 35 that is, the air supply opening air flow direction Y1 are configured to intersect with each other, so that the air flow is dispersed.
  • the air supply opening 35 is formed along the outer peripheral edge of the lower end edge of the exhaust hood 15 as viewed in a plan view as shown in FIGS. It is arranged and formed so as to surround the whole of the cooking device 1 and the blowing induction airflow generating section 3. As described later, the suction opening 5 is formed by the air curtain function of the blowing airflow 30 from the air supply opening 35. It is configured to effectively prevent the overflow of the airflow outside the exhaust area.
  • the bottom surface of the air supply bots 41 provided with the air supply opening 35 is a ceiling 45 to which the exhaust hood 15 is attached. Level. With such a structure, the air supply flow from the air supply opening 35 in the form of air curtain
  • the function 30 stirs indoor air to prevent the formation of thermal stratification and equalizes the indoor temperature. Will be done.
  • a downward blowing supply air stream 30 is generated in the form of an air curtain from the annular air supply opening 3 5 at the level of the ceiling 4 5, and the air curtain action of the blowing air supply stream 30 causes Suction opening of exhaust device E 5
  • the contaminated airflow that is about to flow out of the exhaust area of (5a to 5b) is again forcibly pushed back into the opening 5 (5a to 5b), and the room air around this area is agitated. Thus, the temperature is made uniform.
  • the target area of the local ventilation device PV including the exhaust action by the exhaust device E that is, the peripheral local region including the combustion heating type cooking appliance 1, and the entire kitchen room to which the local ventilation device PV is applied
  • the setting conditions of the ventilation balance in the ventilation system of the present invention will be described.
  • the local ventilation system PV of the present embodiment is applied to a combustion heating cooking appliance a in a kitchen room shown in FIG. 19, by applying the local ventilation system PV, The whole kitchen room and a combustion heating cooker It is configured so that the ventilation balance of the local area around vessel a is simultaneously established.
  • This local ventilation system PV The main purpose of this local ventilation system PV is to supply most of the air discharged by the exhaust air in the form of an air curtain from the air supply opening 35 around the exhaust hood 15 This is covered by the induced airflow 21, 2, 1 and 21. This means that the airflow is reduced by minimizing the effect of the outside air introduced as the downward blow airflow 30 on the surrounding air conditioning. It is to obtain a great energy saving effect by reducing the load.
  • the ventilation around the combustion heating type cooking appliance a shown in Fig. 19a is completed locally to minimize the amount of introduction of outside air by air supply to the air conditioning load.
  • the suction air flow of the suction exhaust flow 6 of the suction exhaust flow generation unit 2 of the exhaust device E is determined by the blowing air flow of the blowing induction air flow 21 by the blowing induction air flow generation unit 3 and the blowing air by the air supply device S.
  • the amount of air blown out of the blow-out induced airflow generating unit 3 is set to be smaller than the amount of air blown in the intake exhaust airflow generating unit 2.
  • the suction air volume is determined by the suction surface wind speed and the induced air volume.
  • the suction surface wind speed is the open surface wind speed of the suction opening 5.
  • blowing wind speed of the blowing induction airflow 21 is the same as the suction surface wind speed of the suction exhaust flow 6. Therefore, the intake exhaust flow 6 and the blow-out induced airflow 21 are airflows having the same wind speed and flowing uniformly in the same direction, and differing only in the amount of airflow.
  • Airflow in which the state of the airflow at an arbitrary airflow cross section does not change with time and is always uniform is locally formed.
  • an exhaust duct k provided with a ceiling exhaust fan j can be substituted for this supplementary ventilation means 50.
  • the supplementary ventilation means 50 detects the CO2 concentration sensor etc. (not shown) in the area other than the local ventilation area by the local ventilation system PV ⁇ The control signal is received and the required ventilation volume is insufficient. In such a case, it is automatically driven to increase the indoor ventilation and establish a ventilation balance.
  • the intake air flow 6 and the blow-out induced air flow 21 pass through the vicinity of the vicinity of the combustion heating type cooking appliance 1 which causes contaminated air. Highly controllable upward one As a result, the contaminated air in the vicinity of the combustion heating type cooking appliance 1 is forcibly collected and delivered to the suction exhaust flow 6 by the attraction of the blowing induction flow 21. In other words, a flow of air from the vicinity of the combustion heating type cooking appliance 1 to the suction opening 5 of the suction exhaust flow 6 is forcibly created in the room, and the flow of air entrains the contaminated air.
  • the suction exhaust stream 6 is delivered to the suction opening 5.
  • the upward uniform airflow for forcibly exhausting the contaminated air passes through the vicinity of the periphery of the combustion heating type cooking appliance 1 and can be exhausted without enclosing the combustion heating cooking appliance 1, resulting in work There is no interference with the work of the cook, ie, the cook, and there is no loss of habitability and workability.
  • Ventilation The capacity of air conditioning equipment is kept low, and the initial cost and running cost of ventilation and air conditioning equipment are reduced. Energy consumption, and at the same time reduce the amount of global warming gas generated by the reduction in the use of electrical energy.
  • the distal end 10a of the exhaust duct 10 of the suction exhaust flow generating section 2 is opened to the outside of the room, and the base end 10b of the exhaust duct 10 communicates with the exhaust box 11 in the form of a box.
  • the exhaust box 11 is provided with the suction openings 5 (5a to 5b) of the above-mentioned suction exhaust flow 6 because they are opened facing the room.
  • the installation position can be freely set within the range of the exhaust surface side of the exhaust pox 11, and the existing ducts and the like can be effectively used.
  • the ventilation system including the exhaust device E and the local ventilation device PV the above-described local ventilation is completed in the exhaust region of the exhaust device E and the local ventilation device PV.
  • the flow of air in this area is changed from the state in which the air flows are mixed as in the conventional general ventilation system in Fig. 19, and the air supply as shown in Figs. 1, 3 and 4. And the exhaust airflow will be separated. .
  • the heat and the outside air that affect the circulating airflow of the air conditioner i are in the same state as in the general living room, and the general ventilation volume in the kitchen room, that is, the ventilation by the driving of the exhaust device j is also reduced by the exhaust device E.
  • the target is the indoor space other than the exhaust area driven by the drive, and the ventilation volume can be reduced to the level of a general living room.
  • Ventilation by keeping the capacity of air conditioning equipment low.
  • the initial cost and running cost of air conditioning equipment can be reduced, and the amount of global warming gas generated can be reduced by reducing the amount of electric energy used.
  • FIG. 7 This embodiment is shown in FIG. 7, in which the configuration of the blow-out induced airflow generating unit 3 in the first embodiment is modified.
  • the induction airflow generation device 1 2 2 of the induction airflow generation unit 3 of the present embodiment is suspended from the exhaust hood 15 by a suspension means 54 such as a SUS chain, and has a cylindrical shape as shown in the figure.
  • the upper part of the device main body 26, which also serves as a rectifying part, is a blow nozzle 28 having a blow opening 20.
  • a blower fan 27 serving as an induced airflow source is provided vertically and concentrically below the device main body 26, and the air source is indoor air.
  • the outlet nozzle 28 has an upright shape so that its axis passes through almost the center of the inlet opening 5 of the exhaust pox 11 of the inlet exhaust flow generator 2, and the outlet guide airflow 21 is formed by the outlet opening. The air is blown vertically upward from 20 toward the inside of the suction opening 5.
  • FIG. 8 This embodiment is shown in FIG. 8, in which the configuration of the blow-out induced airflow generating unit 3 in the first embodiment is modified.
  • the induction airflow generation device 122 of the second embodiment is attached to the side of the stove stand 125 of the combustion heating type cooking appliance 1 by the independent legs 123. It is a stand-alone unit that stands alone.
  • FIG. 9 This embodiment is shown in FIG. 9, in which the configuration of the blow-out induced airflow generation unit 3 in the first embodiment is modified.
  • the induction airflow generation device 222 has a device body 26 and a blower fan 27 of the induction airflow generation device 122 of the second embodiment that are separate structures.
  • the air source is outdoor air
  • the above-mentioned apparatus main body 26 having a cylindrical shape is buried in a stove stand 125 of the combustion heating type cooking appliance 1 in an upright manner, and the apparatus main body 2
  • the lower part of 6 is communicated to the outdoor through the air supply duct 223, and a cylindrical airflow rectifier 224 is placed horizontally at the outdoor end of the air supply duct 223.
  • the airflow rectification device 224 is installed, and a blower fan 27 serving as an induced airflow generation source is provided horizontally and concentrically inside the airflow rectification device 224, and the air source is outdoor air.
  • FIGS. 10 to 12 This embodiment is shown in FIGS. 10 to 12, in which the local ventilation system PV is for use in a kitchen room such as a kitchen in a relatively small building such as a general home.
  • the suction exhaust flow generation section 2 is located above the cooking appliance 1 located close to the interior wall 60, that is, at the ceiling 45 above the cooking appliance 1, the interior wall 60
  • the exhaust duct 10 penetrates through the indoor wall 60 and is opened to the outside, and an exhaust fan 12 is provided at the tip 10a.
  • the exhaust pox 11 and the exhaust hood 15 of the intake exhaust flow generating section 2 have a unitary structure integrated with the air supply box 41 of the air supply device S.
  • the exhaust hood 15 is formed so as to surround three sides of the suction opening 5 of the exhaust box 11, and the indoor wall 60 forms a part of the exhaust hood 15.
  • the air supply opening 35 of the air supply box 41 is arranged and formed so as to surround the outer periphery of the exhaust hood 15 except for the part of the indoor wall 60.
  • the air supply duct 40 of the air supply device S is opened from the air supply box 41 to the outside through the indoor wall 61 opposed to the indoor wall 60, and An air supply fan 42 is provided at the base end 40a.
  • blow-out induced airflow generating section 3 is integrated with the combustion heating type cooking appliance 1, and its specific configuration is shown in FIG.
  • the blow-out induction airflow generation section 3 is provided at the rear side of the stove stand 125 of the combustion heating type cooking appliance 1, as shown in FIG. It has two.
  • the induction airflow generating device 22 includes a hollow rectangular parallelepiped device main body 26 having an upper portion serving as a blowout nozzle 28 having a blowout opening 20, and a frontal portion of the device main body 26.
  • a blow-off fan 27 7 which is a source of induced airflow is provided horizontally frontward, and the air source is indoor air.
  • the blowout nozzle 28 is configured such that its axis extends toward the inside of the suction opening 5 of the exhaust box 11. That is, as shown in FIG. 10, the blowout nozzle 28 of the induction airflow generator 22 is inclined upright so that its axis passes through substantially the center of the suction opening 5, and Reference numeral 21 denotes an outlet which is inclined upward from the outlet opening 20 toward the interior of the inlet opening 5.
  • the exhaust device E having the above-described configuration, when the exhaust fan 12 of the intake exhaust flow generator 2 is driven, the upward intake exhaust flow 6 that continues into the intake opening 5 is generated, and the blow-out induction is performed.
  • the blowout fans 27, 27 of the airflow generating section 3 By driving the blowout fans 27, 27 of the airflow generating section 3, the inclined straightly extending upwardly directed blown airflow that extends linearly from the blowout opening 22 of the blowout nozzle 22 of the induction airflow generator 22 to the suction opening 5 described above. 2 1 occurs.
  • the air supply fan 32 drives the air supply opening 35, which has a substantially U-shaped flat surface at the level of the ceiling 45, and blows air downwardly to supply air flow 30.
  • the air curtain action of the blown supply airflow 30 the contaminated airflow that is about to overflow out of the exhaust area of the suction opening 5 of the exhaust device E is forcibly pushed back into the re-intake opening 5.
  • the room air in the surrounding area is agitated and the temperature is made uniform.
  • FIG. 13 This embodiment is shown in FIG. 13, in which the configuration of the blow-out induced airflow generation unit 3 in the fifth embodiment is modified.
  • the induction airflow generation unit 3 of the present embodiment is also integrated with the combustion heating type cooking appliance 1, as shown in FIG. It is equipped with the induced airflow generator 32 2.
  • the induction airflow generating device 3 2 2 has a blower nozzle having a hollow opening 20 at the rear side of the table stove 1 e , in which the upper part of the device main body 26, which is hollow and has a substantially L-shaped rectangular parallelepiped shape, is provided on the back side.
  • the horizontal part 26 b of the device main body 26 constitutes a placing part of the stove base 125 on which the table stove 1 e is placed.
  • blow-out fans 27, 27 serving as an induced airflow generation source are provided horizontally frontward, and the air source is indoor air.
  • FIG. 14 This embodiment is shown in FIG. 14, in which the configuration of the blow-out induced airflow generating unit 3 in the fifth embodiment is modified.
  • the induction airflow generation unit 3 of the present embodiment is also of the combustion heating type cooking appliance 1 and the body type, and as shown, the induction airflow generation device 4 2 integrated into the combustion heating type cooking appliance 1 itself. With two.
  • the induction airflow generating device 4 2 2 has a hollow rectangular parallelepiped device main body 26 having a blowout opening 20 at the rear side of the stoves 1 f, lf, and If of the combustion heating type cooking appliance 1.
  • the horizontal part 26b of the apparatus main body 26 itself constitutes the main body of the stoves 1f, lf, If.
  • blow-off fans 27, 27 serving as an induced airflow source are provided horizontally frontward, and the air source is indoor air.
  • This embodiment is shown in FIG. 15, in which the configuration of the blow-out induced airflow generation unit 3 in the fifth embodiment is modified.
  • the induction airflow generation unit 3 of the present embodiment is also integrated with the combustion heating type cooking appliance 1, and as shown in the drawing, the induction airflow generation device integrated into the rear part of the combustion heating type cooking appliance 1 5 2 2 is provided.
  • This induction airflow generator 5 2 2 is a hollow, substantially quadrangular truncated pyramid-shaped device behind the stoves 1 f, lf, and If of the combustion heating type cooking appliance 1.
  • the body 26 is provided with a blowout nozzle 28 having a blowout opening 20, and a blowout fan 27, 27, which is a source of induced airflow, is provided in front of the main body 26 of the device in a horizontal front direction.
  • the air source is indoor air.
  • FIGS. 16 to 18 This embodiment is shown in FIGS. 16 to 18 in which the local ventilation device PV is applied as a smoke separating device which is a main component of a smoking room.
  • the target smoking room R has two rectangular walls Ra and Rb, which are concrete walls, and the remaining two walls Rc and Rc.
  • R d is a glass partition wall
  • the partition wall R c has an opening 70 through which people enter and exit.
  • a smoking table 71 is arranged near the partition wall Rd, and the remaining indoor space is a smoking corner.
  • a plurality (three in the illustrated embodiment) of ashtrays 72, 72, 72 are detachably provided.
  • the exhaust device E is provided in the smoking room R, and the air supply device S is provided outside the partition Rc of the smoking room R.
  • the air supply device S may be provided inside the partition Rc of the smoking room R.
  • the suction exhaust flow generating section 2 of the exhaust device E is located above the smoking table 7 1 where the most concentrated tobacco smoke containing the pollutant (nicotine and tar) that causes polluted air, that is, the ceiling above the smoking table 7 1 A portion 45 is provided adjacent to the partition wall Rd.
  • the suction exhaust flow generator 2 has the same basic configuration as that of the above-described embodiment.
  • the exhaust duct 10 has a distal end 10a open to the outside of the room, and a base end 10b of the exhaust duct 10 communicates with the exhaust pox 11.
  • the bottom face 11a of the exhaust pox 11 A suction opening 5 is opened facing the room.
  • An exhaust fan 12 that is an exhaust flow generation source is provided at a tip 10 a of the exhaust duct 10.
  • the exhaust box 11 of the illustrated embodiment has a substantially cubic shape, and substantially the entire square bottom surface 11 a is a suction opening 5. Inside the exhaust box 11, a dust collecting device 113 for separating and removing oil in the exhaust gas is provided.
  • a trapezoidal pyramid-shaped exhaust hood 15 is provided on the outer periphery of the suction opening 5 on the indoor side. As shown in FIG. 16, the exhaust hood 15 is arranged and formed so as to substantially overlap the upper surface of the smoking table 71 and its outer peripheral portion, and the inner peripheral wall (not shown) of the exhaust hood 15 is connected to the suction opening 5. It is formed on a trapezoidal pyramid-shaped inclined wall with an upward slope.
  • the blow-out induced airflow generating section 3 is provided upright at the center of the upper surface of the smoking table 71, that is, at a position near the inside of the outer periphery where the ashtrays 72, 72, and 72 are arranged.
  • the induction airflow generating device 62 of the blowing induction airflow generating section 3 has a vertically long cylindrical main body 26 having an outlet opening 20.
  • a blower fan (not shown), which is a source of induced airflow, is provided below the main body 26 of the apparatus, and the air source is indoor air. I have.
  • the blowout nozzle 28 is configured so that its axis extends toward the inside of the suction opening 5 of the exhaust pox 11.
  • the exhaust fan 1.2 of the intake exhaust flow generating section 2 is driven to move upward into the intake opening 5.
  • a blow-in exhaust flow 6 is generated, and a blow-out fan of the blow-in guide airflow generating section 3 drives the blow-out nozzle 22 of the guide airflow generator 6 22 in a straight line from the blowout opening 20 to the suction opening 5.
  • An extended upward blow-induced airflow 21 occurs.
  • an upward uniform airflow formed by the two airflows 6 and 21 is formed so as to rise upward through the center of the upper surface of the smoking table 71, and at the same time, the airflow induced airflow generation unit 3 induces the airflow induced airflow 21.
  • the contaminated air including tobacco smoke generated in the interior space of the smoking room R centering on the smoking tape 71 is forcibly collected and delivered to the suction exhaust stream 6.
  • the air supply device S is provided outside the partition wall Rc ⁇ of the smoking room R independently and independently of the exhaust device E.
  • the air supply device S is configured such that the base end 40a of the air supply duct 40 is opened to the air or the outside air in the adjacent room, and the base end 40a is provided with the air supply fan Two are provided.
  • the end 40 b of the air supply duct 40 communicates with the air supply box 41, and an air supply opening 35 opens in the air supply box 41 facing the opening 70 of the smoke room R. Have been.
  • the inside of the smoking room R can be air-conditioned to some extent, and it is not only necessary to install an air conditioner for the smoking room R alone. In addition, there is an advantage that the airflow in the smoking room R does not need to be disturbed.
  • the air supply pox 41 is in the form of a rectangular parallelepiped box-shaped container, and the opening width of the air supply opening 35 in the air supply box 41, that is, the air force-ten outlet width W 1 is
  • the opening width W2 of the opening 70 of the smoking room R is set to be larger than the opening width W2.
  • this air supply opening 35 is close to the partition Rc of the smoking room R when viewed in a plane, and is opened in parallel with the partition Rc.
  • the air curtain of the air supply flow 30 from the air supply opening 35 effectively prevents the overflow of the contaminated air flow outside the smoking room R.
  • the air supply fan 40 drives the air supply opening 35 at the level of the ceiling 45 so that the downward blow air supply flow 30 forms an air curtain.
  • the blow-off airflow 30 flows into the smoking room R by the negative pressure because the interior of the smoking room R is under a negative pressure due to the action of the exhaust device E.
  • the polluted airflow that is about to overflow outside the exhaust area of the suction opening 5 of the exhaust device E, that is, outside the smoking room R, is pushed back into the smoking room R again. And forcibly pushed back into the suction opening 5 O 0
  • FIGS. 19 to 21 This embodiment is shown in FIGS. 19 to 21.
  • the configuration of the exhaust device E in the local ventilation device PV of the first embodiment is slightly modified.
  • the guide plates 100 are provided at the blowout nozzles 28, 28, 2.8 of the three induction airflow generating devices 22a, 22b, 22c, respectively. And a structure utilizing the Coanda effect.
  • the guide plates 100, 100, and 100 generate the suction exhaust flow from the blowout openings 20 of the blowout nozzles 28.
  • Each of the suction openings 5a, 5b, and 5c of the section 2 is provided so as to extend toward the inside, and the blow-in guide airflow 21 blown out from the blow-out opening 20 is reliably inserted into the suction opening 5a.
  • it has a structure that guides stably.
  • the guide plate 100 of the first induced airflow generator 22a is connected to the first suction opening 5 through the blowout opening 20 of the blowout nozzle 28.
  • the exhaust hood 15 extends slightly upward from the lower edge of the exhaust hood 15. Then, the blow-induced airflow 21 from the blow-out opening 20 is drawn to one side of the guide plate 100 by the Coanda effect, and blows out obliquely upward along the one side, thereby forming the suction opening. It will be guided inside 5a.
  • the guide plates 100 and 100 of the second and third induced airflow generators 22 b and 22 c are provided with blow-off nozzles 28 and 28, respectively.
  • the outlet openings 20 and 20 extend upright from the central portions of the second and third intake openings 5b and 5c, respectively, toward the substantially central portions thereof, and the upper edge thereof 100 a is located slightly below the lower edge of the exhaust hood 15. Then, the blow-induced airflow 21 from the blow-out opening 20 is attracted to both side surfaces of the guide plate 100 by the Coanda effect, and blows upward along these both side surfaces in an inclined manner. It will be guided inside 5b and 5c.
  • the exhaust fans 12 and 12 of the intake / exhaust air flow generation unit 2 are driven to drive the upwardly directed upward into the intake opening 5 (5a to 5c).
  • the suction air flows 6, 6, 6 are generated, and the induction air flow generators 2 2a, 2 2b, 2 are driven by the blower fans 27, 27,...
  • An upward blow-induced airflow 21, 21, 21 that extends linearly from the blowout opening 20 of the blowout nozzle 22 at 2 c to the suction opening 5 (5 a to 5 c) is generated.
  • the blowing induced airflow 21 from each blowing opening 20 is attracted to the guide plate 100 by the Coanda effect of the guide plate 100 and is stabilized and accelerated (the guide plate 1).
  • the speed is almost twice that of the case where there is no 0), and it is surely guided into the first, second and third suction openings 5a, 5b and 5c, respectively.
  • the airflow is the same as that of the first embodiment, and the speed-up and the stabilization of the airflow are ensured for the blow-out induced airflow 21.
  • the length of the guide plate 100 extending upward is appropriately set so that the Coanda effect is effectively exhibited according to the purpose of the installation location or the like.
  • the upper edge 100 a of the guide plate 100 is provided to extend slightly below the lower edge of the exhaust hood 15.
  • a structure extending to the suction opening 5 (5a to 5c) inside 5 may be used.
  • the guide plate 100 also bends when each of the outlet openings 20 and the first, second and third suction openings 5a, 5b, 5c are not straight but deviated.
  • an upward uniform airflow with high controllability that passes through a position near the periphery of a pollutant generating source causing contaminated air is formed by the intake exhaust airflow and the blowout induction airflow.
  • the above-mentioned blow-out induced airflow is used to forcibly collect and deliver the contaminated air near the contaminant generation source to the above-mentioned intake exhaust stream, so that the contaminated air is forcibly exhausted.
  • the upward uniform airflow passes through the vicinity of the source of pollutants and can be exhausted without enveloping the source of pollutants, which does not interfere with the worker's work and impairs livability and workability There is no local exhaust ventilation technology can be provided.
  • the end of the exhaust duct of the suction exhaust flow generating means is opened to the outside of the room, and the base end of the exhaust duct communicates with an exhaust box in the form of a box-shaped container.
  • the location of the suction opening can be freely set within the range of the exhaust surface side of the exhaust pod, thereby generating a source of pollutants such as kitchen equipment.
  • the layout will be more flexible, and the effective use of existing ducts will be promoted.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Abstract

L'invention concerne une technique destinée à l'évacuation d'air et à une ventilation locale, le volume de ventilation et la capacité de conditionnement d'air étant réduits autant que possible par réduction de la quantité d'air externe, introduit par une alimentation d'air, devenant une charge pour le conditionnement de l'air. Cette réduction permet d'éliminer le gaspillage d'énergie électrique et permet de réduire la capacité de conditionnement d'air et de l'équipement de ventilation. La technique met en oeuvre un procédé permettant d'évacuer l'air contaminé autour et à proximité d'un appareil de cuisson (1) de type à chauffage par combustion produisant de l'air contaminé dans la cuisine. Un écoulement d'air d'évacuation d'aspiration dirigé vers le haut (6) en prolongement à partir d'une position située au-dessus de l'appareil de cuisson (1) vers l'extérieur de la cuisine est produit et un écoulement d'air de guidage de soufflage dirigé vers le haut (21) s'écoulant à partir d'une position située à proximité du côté de l'appareil de cuisson (1) vers l'écoulement d'air d'évacuation d'aspiration (6) est produit. L'air contaminé autour et à proximité de l'appareil de cuisson (1) est fourni de manière forcée dans l'écoulement d'air d'évacuation d'aspiration (6) et recueilli par celui-ci, par effet d'induction de l'écoulement d'air de guidage de soufflage.
PCT/JP2004/001345 2003-02-14 2004-02-09 Procede et dispositif de ventilation locale consistant a guider et separer l'ecoulement d'air WO2004072558A1 (fr)

Priority Applications (2)

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US10/545,383 US20060154590A1 (en) 2003-02-14 2004-02-09 Method and device for local ventilation by buiding airflow and separating airflow
JP2005504962A JP4145922B2 (ja) 2003-02-14 2004-02-09 排気方法および局所換気方法、ならびに排気装置、局所換気装置および換気システム

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JP2003037190 2003-02-14
JP2003/37190 2003-02-14

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008070049A (ja) * 2006-09-14 2008-03-27 Toto Ltd レンジフード
JP2012122725A (ja) * 2012-03-28 2012-06-28 Wind Navi Kk 排気装置
JP2014025621A (ja) * 2012-07-25 2014-02-06 Toshiba Carrier Corp 給排気システム
CN105066242A (zh) * 2015-07-30 2015-11-18 吴鹏 一种厨房降温系统及降温方法
EP3346194A1 (fr) * 2017-01-06 2018-07-11 Samsung Electronics Co., Ltd. Système de ventilation et son procédé de contrôle
JP2018175121A (ja) * 2017-04-06 2018-11-15 富士工業株式会社 消臭装置
JP2019148371A (ja) * 2018-02-27 2019-09-05 大成建設株式会社 環境負荷低減型外気導入システム
CN110440332A (zh) * 2019-08-09 2019-11-12 安徽冠东科技有限公司 一种室内局部循环式取暖器
CN112413693A (zh) * 2020-12-14 2021-02-26 珠海格力电器股份有限公司 集成灶的控制方法、集成灶、处理器和存储介质
JP6932823B1 (ja) * 2020-08-04 2021-09-08 株式会社楠風エナジーシステム 換気システム及び換気方法
JP2021188848A (ja) * 2020-06-02 2021-12-13 日本電化工機株式会社 飛沫収集器
JP2022073831A (ja) * 2020-10-29 2022-05-17 日鉄鉱業株式会社 パーティション
JP7399683B2 (ja) 2019-11-06 2023-12-18 協立エアテック株式会社 排気フード
GB2624441A (en) * 2022-11-18 2024-05-22 Dyson Technology Ltd Air treatment device

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007121461A2 (fr) 2006-04-18 2007-10-25 Oy Halton Group Ltd. Système d'évacuation à recirculation
FR2928718B1 (fr) * 2008-03-11 2010-12-10 Bhd Ingenierie Installation d'evacuation d'emissions gazeuses fournies par au moins un poste emissif dans un local
US8505530B2 (en) 2009-11-19 2013-08-13 Itw Food Equipment Group Llc Commercial kitchen exhaust system
US9463129B2 (en) * 2011-09-27 2016-10-11 Mp Acquisition, Llc Grossing station
CN105987475A (zh) * 2015-02-02 2016-10-05 广东万锦科技股份有限公司 一种正压式净化空气的新风机
WO2017015966A1 (fr) * 2015-07-30 2017-02-02 吴鹏 Appareil de refroidissement de cuisine et procédé de refroidissement de cuisine
WO2017015957A1 (fr) * 2015-07-30 2017-02-02 吴鹏 Système de refroidissement de cuisine et procédé de refroidissement de cuisine
KR101642799B1 (ko) 2015-11-03 2016-08-11 주식회사 동방포쎄 수렴형 공기막을 형성하는 천장매립형 주방환기시스템
CA3027456C (fr) 2016-06-20 2021-04-27 Mp Acquisition, Llc Systeme de poste de montage
US10376936B2 (en) * 2016-06-21 2019-08-13 Gurmeet Singh Method and apparatus of optimizing performance of fume hoods
KR102557926B1 (ko) * 2016-11-07 2023-07-21 삼성전자주식회사 후드 겸용 조리기기
US10384243B2 (en) * 2017-03-15 2019-08-20 L.B.T. (Nantong) Laboratory Systems Engineering Co., Ltd. Air replenishing fume hood
CN106949512A (zh) * 2017-03-15 2017-07-14 山东佳星环保科技有限公司 一种智能型厨房净化装置
CN107781886B (zh) * 2017-11-27 2019-07-19 杨肇 一种零和式低碳油烟净化器及净化系统
US11540966B2 (en) 2018-09-05 2023-01-03 Mp Acquisition, Llc Grossing station camera system
US11253413B2 (en) 2018-09-13 2022-02-22 Mp Acquisition, Llc Integrated dissection board table lid
CA3116679A1 (fr) 2018-10-17 2020-04-23 Mp Acquisition, Llc Table d'autopsie rotative
CN109798567A (zh) * 2018-12-29 2019-05-24 佛山市云米电器科技有限公司 一种能够改善抽烟环境空气质量的油烟机及香烟判断方法
AU2021271182A1 (en) * 2020-05-15 2023-01-19 Michael Dieter DECHERT Device and method for carrying out decontamination measures, method for preparing decontamination measures and method for monitoring decontamination measures

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60186637A (ja) * 1984-03-06 1985-09-24 Tokyo Gas Co Ltd レンジフ−ド装置
JPH02282640A (ja) * 1989-04-24 1990-11-20 Matsushita Seiko Co Ltd 調理用排気装置
JPH04292735A (ja) * 1991-03-19 1992-10-16 Matsushita Seiko Co Ltd レンジフード
JPH0979638A (ja) * 1995-09-08 1997-03-28 Marukatsu Sangyo Kk レンジフード
JP2002243232A (ja) * 2001-02-13 2002-08-28 Mitsubishi Electric Corp 台所用換気システム
JP2003144250A (ja) * 2001-11-14 2003-05-20 Matsushita Electric Ind Co Ltd レンジフード捕集補助装置
JP2003207184A (ja) * 2002-01-11 2003-07-25 Sekisui House Ltd 給排型厨房換気装置の給気吹出し構造

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4877015A (en) * 1988-05-09 1989-10-31 Shinpo Kabushiki Kaisha Multipurpose smokeless roaster
US5251608A (en) * 1988-08-19 1993-10-12 Cameron Cote Air canopy ventilation system
US6338675B2 (en) * 1998-09-30 2002-01-15 Rebecca Winkelman Nail technician ventilation system
WO2001077589A1 (fr) * 2000-04-10 2001-10-18 Yoshiaki Kanaya Procedes d'evacuation et de ventilation locales, dispositif d'evacuation locale et systeme de ventilation locale

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60186637A (ja) * 1984-03-06 1985-09-24 Tokyo Gas Co Ltd レンジフ−ド装置
JPH02282640A (ja) * 1989-04-24 1990-11-20 Matsushita Seiko Co Ltd 調理用排気装置
JPH04292735A (ja) * 1991-03-19 1992-10-16 Matsushita Seiko Co Ltd レンジフード
JPH0979638A (ja) * 1995-09-08 1997-03-28 Marukatsu Sangyo Kk レンジフード
JP2002243232A (ja) * 2001-02-13 2002-08-28 Mitsubishi Electric Corp 台所用換気システム
JP2003144250A (ja) * 2001-11-14 2003-05-20 Matsushita Electric Ind Co Ltd レンジフード捕集補助装置
JP2003207184A (ja) * 2002-01-11 2003-07-25 Sekisui House Ltd 給排型厨房換気装置の給気吹出し構造

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008070049A (ja) * 2006-09-14 2008-03-27 Toto Ltd レンジフード
JP2012122725A (ja) * 2012-03-28 2012-06-28 Wind Navi Kk 排気装置
JP2014025621A (ja) * 2012-07-25 2014-02-06 Toshiba Carrier Corp 給排気システム
CN105066242A (zh) * 2015-07-30 2015-11-18 吴鹏 一种厨房降温系统及降温方法
US10690353B2 (en) 2017-01-06 2020-06-23 Samsung Electronics Co., Ltd. Ventilation system and method for controlling the same
EP3346194A1 (fr) * 2017-01-06 2018-07-11 Samsung Electronics Co., Ltd. Système de ventilation et son procédé de contrôle
AU2018205958B2 (en) * 2017-01-06 2023-05-11 Samsung Electronics Co., Ltd. Ventilation system and method for controlling the same
JP2018175121A (ja) * 2017-04-06 2018-11-15 富士工業株式会社 消臭装置
JP2019148371A (ja) * 2018-02-27 2019-09-05 大成建設株式会社 環境負荷低減型外気導入システム
JP7082497B2 (ja) 2018-02-27 2022-06-08 大成建設株式会社 環境負荷低減型外気導入システム
CN110440332B (zh) * 2019-08-09 2020-12-22 马鞍山市黄池食品(集团)金菜地畜业有限公司 一种室内局部循环式取暖器
CN110440332A (zh) * 2019-08-09 2019-11-12 安徽冠东科技有限公司 一种室内局部循环式取暖器
JP7399683B2 (ja) 2019-11-06 2023-12-18 協立エアテック株式会社 排気フード
JP2021188848A (ja) * 2020-06-02 2021-12-13 日本電化工機株式会社 飛沫収集器
JP6995394B2 (ja) 2020-06-02 2022-01-14 日本電化工機株式会社 飛沫収集器及び飛沫取集テーブルシステム
JP2022029357A (ja) * 2020-08-04 2022-02-17 株式会社楠風エナジーシステム 換気システム及び換気方法
JP6932823B1 (ja) * 2020-08-04 2021-09-08 株式会社楠風エナジーシステム 換気システム及び換気方法
JP2022073831A (ja) * 2020-10-29 2022-05-17 日鉄鉱業株式会社 パーティション
JP7359750B2 (ja) 2020-10-29 2023-10-11 日鉄鉱業株式会社 パーティション
CN112413693B (zh) * 2020-12-14 2021-11-16 珠海格力电器股份有限公司 集成灶的控制方法、集成灶、处理器和存储介质
CN112413693A (zh) * 2020-12-14 2021-02-26 珠海格力电器股份有限公司 集成灶的控制方法、集成灶、处理器和存储介质
GB2624441A (en) * 2022-11-18 2024-05-22 Dyson Technology Ltd Air treatment device

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