JP4708075B2 - Smoking room ventilation method and smoking room - Google Patents

Description

The present invention is space to allow smoke booth other smoking (hereinafter, referred to as "smoking room" in the present invention) relating to the ventilation method and.

  In recent years, due to the enforcement of the Health Promotion Act, public facilities have allowed smoking only in limited spaces. In many cases, smoking rooms for smoke separation are formed in buildings. Here it is important not to let the cigarette smoke leak out of the smoking room. Furthermore, it is desirable that tobacco smoke does not adhere to clothes in the smoking room and that smoke does not inhale more than the smoker needs by filling the smoking room with smoke.

  On the other hand, for example, when an attempt is made to provide a smoking room in an existing building in consideration of smoke separation, it is difficult to perform exhaust processing, for example, laying of an exhaust duct. Existing pipes, ducts and cables are routed vertically and horizontally behind the ceiling, and it is necessary to bypass them. This problem is also common when trying to keep the construction costs low by reducing the height of the ceiling in new buildings. Even if an air purifier is installed in the smoking room and the smoke is purified and circulated, the effect is limited, and considering the amenity of the smoker, exhaust treatment is inevitable.

  In addition, building managers also want to save energy by reducing exhaust fan and other power costs.

  According to the results of the applicant's prior art search, (1) the air blower provided near the ashtray generates an upward air flow and exhausts it from the opposite exhaust port (Patent Document 1), (2) the smoker's feet An air purifier equipped with an air outlet near the ceiling and a suction port near the ceiling is installed, and a plurality of mini-blowers that generate an upward airflow are installed on the table (Patent Document 2) and (3) Finding what uses a blower top suction air purifier and diverts the ratio of supply air volume and exhaust air volume of the lower blowout to 1: 4 (suction volume is 5 times the blowout volume) (Patent Document 3) It was done. In addition, about the "shielding body" as a component of this invention, invention of the service station which partitions off a non-smoking room space and a smoking space by the hanging wall hanging down from the ceiling is also disclosed (patent document 4).

Japanese Patent Laid-Open No. 10-170036 JP-A-5-237321 Japanese Patent Laid-Open No. 10-381 JP 2005-36536 A

  However, the above inventions (1) to (3) are based on the premise that the smoker smokes at a fixed position. In practice, smokers rarely stay in place, such as having conversations with each other or walking in a smoking room for exercise. This situation is conspicuous in smoking rooms where chairs are not installed for space saving and other reasons. In the above inventions (1) to (3), costs such as a mini blower and an air purifier are required. Furthermore, it does not disclose the flexibility in replacing the existing building.

  The object of the present invention is to consider the amenity of smokers in smoking rooms and to save energy, and to prevent smoke from leaking from smoking rooms to non-smoking rooms without forcing the smokers to sit down. The purpose is to provide low-cost equipment that can flexibly cope with the reordering.

According to the present invention, on one wall of the smoking room, the periphery of which is partitioned by four wall surfaces, the air is supplied toward the room at a wind speed of 0.3 to 0.7 m / sec below the height position of the ashtray, The air is exhausted above the height position, and the air supplied toward the room is reversed and exhausted in the direction toward the one wall without generating another auxiliary air flow . Smoking characterized in that air supplied toward the room passes through the upper and lower shields provided on the ceiling of the smoking room while being exhausted while being reversed in the direction toward the one wall surface. A room ventilation method is provided.

According to the present invention, on one wall surface of the smoking room that is partitioned by the four wall surfaces and on the other wall surface facing the one wall surface, the wind speed is 0.3 to 0.7 m / min below the height position of the ashtray. The air is supplied to the room in seconds, exhausted above the height position of the ashtray, and the air supplied to the room is generated on the one wall surface or without generating an auxiliary air flow. It is configured to be exhausted while being reversed in a direction toward the other wall surface, and the air supplied toward the room is reversed and exhausted in a direction toward the one wall surface or the other wall surface. There is provided a method for ventilating a smoking room, characterized in that it passes above and below a shield provided on the ceiling of the smoking room.

  According to the present invention, smoke can be quickly removed from a room by a reverse airflow without causing a smoker in the room to feel a draft by low-speed blowing. Even if the occupant does not stay at the predetermined position, smoke is exhausted by the reversal airflow. Note that “supplying air toward the room at a wind speed of 0.3 to 0.7 m / sec” means that the wind speed measured on the air supply surface (opening surface) of the air supply port is 0.3 to 0.7 m / sec. It means that. Normally, the wind speed measured on the air supply surface is, for example, 2 m / sec, but in the present invention, a blowout at a low speed of 0.3 to 0.7 m / sec is employed. In addition, because the air supply and exhaust ports are provided on the same wall, duct work and other construction are easy and space can be used effectively. Furthermore, it contributes to energy saving by low-speed blowing. The “smoking room” refers to a room that allows smoking, such as a smoking booth where the space is partitioned with temporary partitions and vinyl curtains, a karaoke room, a reception room, and other smoking spaces in restaurants. “Without other auxiliary air flow generation” means that the air flow generation in the smoking room is substantially supplied by air supply and exhaust on one wall surface or one wall surface of the smoking room and the other wall surface facing the one wall surface. It is. That is, it does not mean bringing an auxiliary blower such as the mini blower in Patent Document 2 into the smoking room. Furthermore, “the height position of the ashtray” refers to the height position where the cigarette is placed (the height position where smoke is generated from the cigarette). The ashtray includes a stand-type ashtray.

  An example of the shield is a hanging wall. According to the knowledge of the present inventors, it was visually confirmed that smoke vortices are generated near the indoor ceiling when the shield is not installed on the ceiling. If this stays, there is a risk of smoke adhering to the smoker's head. Accordingly, the present inventors have succeeded in preventing smoke vortex retention by providing a shield on the ceiling of the room. It was also found that even if the occupant in the smoking room moved away from the position of the ashtray, for example, the reversal flow due to suction from the exhaust port and the wind around the shield were effectively exhausted.

  An ashtray may be arranged on the table, and air may be supplied below the table and exhausted above the table.

According to the present invention, on the one wall surface of the smoking room that is partitioned by the four wall surfaces, an air supply port is provided below the height position of the ashtray to supply a strip-shaped or linear airflow that is long in the width direction. An exhaust port for exhausting air from substantially the entire surface is provided above the height position of the ashtray, a shield body substantially parallel to the one wall surface is provided in the ceiling portion of the smoking room, and between the shield body and the ceiling of the smoking room A smoking room is provided, characterized in that an open space is provided .

Further, according to the present invention, in one wall surface of the smoking room that is partitioned by the four wall surfaces and the other wall surface facing the one wall surface, a strip or line shape that is long in the width direction below the height position of the ashtray. An air supply port for supplying the airflow is provided, an exhaust port for exhausting from substantially the entire surface is provided above the height position of the ashtray, and a shield that is substantially parallel to the one wall surface is provided on the ceiling of the smoking room A smoking room is provided, wherein an open space is provided between the shield and the ceiling of the smoking room.

  According to the present invention, since the air supply port and the exhaust port are set based on the position where the cigarette smoke normally occurs, the cigarette smoke is quickly discharged out of the room together with the fresh air by the reverse flow. In other words, it can be ventilated with a small air volume, contributing to energy saving. Note that “supplying a strip-like or linear airflow that is long in the width direction” means that the supply air is blown into the room in a horizontally long shape that is long in the width direction. That is, like so-called replacement ventilation, the air flow over the floor is blown out toward the opposite surface of the smoking room. The air supply port may be a continuous opening in the width direction or may be intermittent. Further, a swirl flow forming mechanism (see Japanese Patent Application Laid-Open No. 2002-372268) sold by the applicant under the trade name “SWIT” may be used. The term “exhaust port for exhausting from substantially the entire surface” refers to a configuration that allows exhaust from almost the entire surface of the wall above the ashtray, such as punching and breathable materials described later.

  The other wall surface opposite to the one wall surface provided with the air supply port and the exhaust port can also be constituted by a wall surface provided with the air supply port and the exhaust port, and can be a symmetrical surface. If it does in this way, it will be advantageous for constructing a wide smoking space because the two opposite surfaces of the chamber become the air supply / exhaust surfaces.

  The shield is positioned between the one wall surface and the opposing surface, and is installed substantially parallel to the one wall surface. The “opposing surface” is a non-breathable wall or a surface configured in the same manner as the one wall surface. By doing so, it is possible to prevent the smoke vortex from staying in the vicinity of the ceiling.

  The shield may be slightly inclined, and the installation means may be supported by a legged stand in addition to hanging. The height of its lower end is higher than the respiratory height when the indoor smoker stands, preferably higher than the position of the head, so that it does not interfere with movement. Moreover, when the edge part covers a door, it is necessary to make it higher than the height of the door.

An open space is provided between the shield and the ceiling of the smoking room . By doing so, smoke flows between the ceiling and the shield, and vortex retention can be prevented more effectively.

  Further, a table for placing an ashtray on the inner surface of the one wall surface and / or the inner surface of the other wall surface may be provided, an air supply port may be provided below the table, and an exhaust port may be provided above the table. In that case, an air supply chamber may be formed below the table and an exhaust chamber above the table at the back of the one wall surface and / or the back of the other wall surface. Further, a side duct of the one wall surface and / or the other one wall surface may be provided with a soot duct communicating with one or both of the air supply chamber and the exhaust chamber. With this configuration, the workability can be improved by bringing the air supply / exhaust source close to the wall surface having the air supply / exhaust function. Further, the saddle duct may be opened at the bottom and closed at the top from the opening. If comprised in this way, it can apply to the floor blowing system which is spreading. In other words, the air supplied from the air supply source of the system can be used to supply air from the air supply port of the smoking room without using any other power.

It is equipped with a table for placing an ashtray on the inner surface of the wall, an air supply port is provided below the wall table, an exhaust port is provided above the table, and an air supply chamber is formed below the table on the back of the wall A wall member is provided in which an exhaust chamber is formed above the table. In addition, a saddle duct that communicates with one or both of the air supply chamber and the exhaust chamber may be provided at a side end of the wall surface.

  In addition to the above-described advantages, this structure is provided with a table for arranging an air supply / exhaust function and an ashtray, and as a prefabricated member, a smoking room can be easily formed simply by installing it.

  According to the present invention, it is possible to prevent smoke from leaking from a smoking room to a non-smoking space while taking into account the amenity of the smoker. Smoking rooms that can be flexibly adapted to reordering can be provided at a low price.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In the present specification and drawings, components having substantially the same functional configuration are denoted by the same reference numerals, and redundant description is omitted. FIG. 1 is an exploded perspective view of a smoking room 1 according to an embodiment of the present invention. The smoking room 1 is surrounded by four wall surfaces 10a, 10b, 10c, and 10d, and is surrounded by a ceiling surface 11 and a floor surface 12 to form a partitioned space for smoking.

  In the illustrated smoking room 1, a door 15 is provided on a wall surface 10 a located on the left back side. A smoker can enter and leave the smoking room 1 by opening and closing the door 15. When the door 11 is closed, air does not leak out from the inside of the smoking room 1.

  In FIG. 1, the wall surface 10 c located on the right front side, the wall surface 10 d located on the left front side, the ceiling surface 11, and the floor surface 12 are substantially closed surfaces that do not allow air to flow outside the smoking room 1. Yes. The wall surfaces 10c and 10d may be, for example, a glass surface, but may be formed of a sandwich panel similar to the wall surface 10b described later.

  On the other hand, a table 21 on which the ashtray 20 is placed is provided on the inner surface of the wall surface 10b located on the right back side in FIG. The ashtray 20 may be fixedly disposed on the table 21. The table 21 is provided in the vicinity of the smoker's waist at a depth of 400 mm in the indoor direction and the full width of the wall surface 10b. In this embodiment, the height of the table 21 is set to 900 mm above the floor with respect to the smoking room 1 having a height of 2500 mm.

  In the wall surface 10 b, an air supply port 25 is provided below the table 21, and an exhaust port 26 is provided above the table 21. As a result, the air supply port 25 is positioned below the height position of the ashtray 20 disposed on the table 21, and the exhaust port 26 is positioned above the height position of the ashtray 20.

  The air supply port 25 has a slit shape that is long in the width direction at the lower portion of the wall surface 10b. In this embodiment, two slit-shaped air supply ports 25 having a width of 700 mm are arranged at a position of 100 mm on the floor with an interval of 500 mm.

  Above the table 21, the wall surface 10b has exhaust ports 26 formed of a large number of circular holes distributed as a whole. Similarly to the wall surface 10b below the table 21, the wall surface 10b may be a sandwich panel above the table 21, and a number of exhaust ports 26 may be opened on the inner wall surface. In the embodiment, the inner wall surface of the wall surface 10 b is formed of the punching metal 27 above the table 21. As described above, the wall surface 10b made of the punching metal 27 above the table 21 has a small opening ratio at the top and a large bottom. In this embodiment, the diameter of the exhaust port 26 formed in the punching metal 27 is 6φ and the aperture ratio is 20% at a height of 800 mm from the table 21, and the hole is formed in the punching metal 27 at a height higher than that. The exhaust port 26 has a diameter of 2.5φ and an aperture ratio of 20%.

The lower part of the wall surface 10b is a sandwich panel composed of two front and rear plate members, and the upper part of the wall surface 10b is a sandwich panel in which the inner wall surface of the two front and rear plate members is a punching metal 27. An air supply chamber 30 is formed below the height position of the table 21, and an exhaust chamber 31 is formed above the height position of the table 21 at the back portion of 10 b. The aforementioned air supply port 25 communicates with the air supply chamber 30, and the aforementioned air exhaust port 26 communicates with the exhaust chamber 31. The interior of the wall surface 10b formed of the sandwich panel is partitioned vertically by the height of the table 21 using an appropriate partition member, so that an air supply chamber 30 is formed below and an exhaust chamber 31 is formed above. . In this embodiment, the width of the air supply chamber 30 and the exhaust chamber 31 is 2500 mm.

  At the side end portion of the wall surface 10b (the corner portion where the wall surface 10b and the wall surface 10a intersect), a soot duct 35 is provided for introducing conditioned air from the back of the ceiling to supply air into the smoking room 1. The soot duct 35 has a triangular cross section and is erected at the corner of the smoking room 1. In this embodiment, the length of the side of the eaves duct 35 (triangular shape) at the position in contact with the wall surface 10b is 400 mm. With this configuration, the width of the soot duct 35 is not as large as the supply air volume, and the room can be used effectively without a feeling of pressure on the smoker.

  The lower end of the soot duct 35 is closed at the height of the floor of the smoking room 1, and the upper end (upstream side) of the soot duct 35 is opened, and conditioned air generated by the air conditioner is received in the soot duct 35. The soot duct 35 communicates with the air supply chamber 30 below the table 21, so that the conditioned air received in the soot duct 35 is long or wide in the width direction from the air supply port 25. The air is fed into the smoking room 1. The inside of the eaves duct 35 is a cavity for using the air blowing power of the air conditioner. However, if the static pressure is insufficient, a cross flow fan may be installed inside the eaves duct 35 or the back of the ceiling as necessary. Then, the air is supplied into the smoking room 1 at a low speed of 0.5 to 0.7 m / sec (0.5 m / sec in the present embodiment).

  Exhaust ducts 40 for discharging air contaminated with tobacco smoke in the smoking room 1 are connected to a plurality of locations on the upper surface of the exhaust chamber 31. Above the table 21, the wall surface 10 b is composed of the punching metal 27 in which the exhaust ports 26 are formed in a distributed manner, so that the air contaminated with the tobacco smoke in the smoking room 1 is moved above the table 21. In FIG. 2, the air is sucked into the exhaust chamber 31 from almost the entire wall surface 10b and exhausted to the exhaust duct 40.

  This exhaust is performed at a lower speed than the supply air velocity (0.3 to 0.7 m / sec) on the suction surface (wall surface 10b) of the exhaust port 26, for example, 0.1 to 0.3 m / sec (this embodiment) In this embodiment, the air is sucked at an average of 0.2 m / sec). Further, by making the exhaust amount larger than the air supply amount, the inside of the smoking room 1 is kept at a negative pressure, and the leakage of contaminated air to the outside is avoided.

  Further, one of the features of the present invention is that the smoker who walks around the smoking room 1 does not feel the deterioration of the environment so much and avoids the leakage of contaminated air to the outside. A means for that is a hanging wall 45 as a shield provided on the ceiling of the smoking room 1. The drooping wall 45 is made of a plate member arranged substantially in parallel with the wall surface 10b where the air supply port 25 and the exhaust port 26 are provided, and flows toward the exhaust port 26 (the wall surface 10b) above the smoking room 1. Arranged to partially block air. An open space 46 is provided between the hanging wall 45 and the ceiling 11 of the smoking room 1. In the present embodiment, a plate made of a steel plate having a height of 250 mm is suspended as a hanging wall 45 by a bolt through a metal fitting, and a gap of 50 mm in height (between the upper end of the hanging wall 45 and the ceiling surface 11 ( An open space 46) is provided. The material of the hanging wall 45 may be, for example, a vinyl curtain with a weight, a stainless steel plate, or an acrylic plate, and the open space 46 may be formed by directly attaching an upper portion of these to the ceiling 11. . Note that the position of the hanging wall 45 is substantially the entire width direction between the wall surface 10b where the air supply port 25 and the exhaust port 26 are formed and the wall surface 10d opposite to the wall surface 10b (in the present embodiment, the position of 950 mm with respect to the depth of 1850 mm). It is drooping to. And the lower end is arrange | positioned above a smoker's head (in this Embodiment, the position of height 2200mm with respect to ceiling height 2500mm).

  In the smoking room 1 configured as described above, the supply air is blown from the air supply port 25 below the table 21 at a low speed of 0.3 to 0.7 m / sec. By sucking in uniformly from the mouth 26, the air supplied toward the inside of the smoking room 1 is reversed in the direction toward the wall surface 10b to form a reversal flow that is sucked into the exhaust port 26, and the smoking room 1 with a small number of ventilations. It becomes possible to ventilate the inside. In the system having an air supply port and an exhaust port on the ceiling surface, the ventilation frequency is 60 times, but according to the smoking room 1 of the embodiment of the present invention, the ventilation frequency is reduced to 20 times. Reducing the number of ventilations will contribute to energy savings, reduce the size of the ducts, and reduce both equipment and operating costs.

  In addition, as for the size of the air supply duct (exhaust duct), it is possible to use a spiral duct having a diameter of 300φ and a diameter of 175φ in the conventional method. As a result, the beam of the duct can be penetrated, which contributes to the fit and simplifies the duct work. Furthermore, since it sucks in the substantially whole surface above exhaust chamber 31 at low speed, it does not make a smoker feel a draft.

  In addition, since the opening ratio of the exhaust ports 26 distributed above the table 21 is small at the upper side (position away from the table 21) and larger at the lower side (position close to the table 21), the table Most smoke smoked near the upper surface of 21 will be quickly discharged. In addition, cigarette smoke including hot air is diluted with fresh air from below while being raised to the ceiling, and is sucked into the exhaust port 26. Further, inside the exhaust chamber 31 constituted by a sandwich panel or the like, a reinforcing material is attached in a cross shape (see FIG. 2), and these serve as ventilation resistance, but the opening ratio of the exhaust port 26 is upward. Therefore, the air is sucked into the entire wall surface 10b above the table 21 without any deviation.

  In addition, the smoker may walk and move in the smoking room 1. In this case, as it is, smoke leaks between the wall surfaces 10a, 10b, 10c and 10d of the smoking room 1 or through the gaps between the ceiling 11 and the floor 12 and the wall. However, if the drooping wall 45 is provided in the middle of the air supplied into the smoking room 1 flowing toward the punching metal 27 as the exhaust port 26, the flow path is throttled at the bottom of the dripping wall 45, and the return flow rate is high. As a result, the inventor's experiment has revealed that the smoke that has floated flows toward the punching metal 27. However, at the same time, it was also found that smoke accumulation occurred in the vicinity of the hanging wall 45 and stayed, and the inventors further worked on this solution. This is because the accumulated air in the upper part of the smoking room 1 and in the vicinity of the hanging wall 45 may be leaked when the door 15 is opened or closed when entering or leaving the room or when the supply and exhaust of the smoking room 1 is stopped. Accordingly, the inventors have found that an open space 46 through which air can flow is provided above the hanging wall 45. The upper opening (open space 46) allows smoke accumulated on the opposite side of the drooping wall 45 to the exhaust port 26 to escape toward the exhaust port 26. However, if the opening (open space 46) is too large, the smoke accumulation is large. As a result, it was found that the half or less of the height of the hanging wall 45 is the most preferable (the height of 1/6 of the hanging wall 45 in this embodiment). This allows smokers and their clothing to be exposed to a one-way flow of smoke, minimizing the effects of smoke, and almost no smoke leakage outside the room.

  Although FIG. 1 shows a form in which an air supply source and an exhaust destination are communicated from behind the ceiling, the present invention can also be applied to a floor blowing type air conditioning system. In other words, the floor air-conditioning system generally supplies conditioned air from a double floor space through a floor outlet provided on the floor (possibly via a carpet) and exhausts it to the back of the ceiling. The present invention can also be applied to a simple floor blowing air conditioning system. This will be described with reference to FIG.

  In the smoking room 1 ′ shown in FIG. 2, the wall surface 10 b and the other wall surface 10 d facing the wall surface 10 b are configured to have the same structure as the wall surface 10 b in the embodiment described above with reference to FIG. A sandwich panel structure (with an inner wall surface above the table 21 being a punching metal 27) having a mouth 26 and having an air supply chamber 30 below the table 21 and an exhaust chamber 31 above the table 21 formed behind is provided.

  In this smoking room 1 ′, the lateral cross-sections of the side walls (the corner where the wall 10b and the wall 10a intersect and the corner where the wall 10d and the wall 10a intersect) are triangular in cross section. A duct 35 'is provided. However, in this smoking room 1 ′, the upper and lower ends of the soot duct 35 ′ are both open, and the interior of the soot duct 35 ′ is partitioned vertically at the height position of the table 21. Inside, the upper part is partitioned on the exhaust side, and the lower part is partitioned on the supply side. The upper side of the soot duct 35 'communicates with the exhaust chamber 31 formed behind the wall surfaces 10b and 10d, and the lower side of the soot duct 35' is connected with the air supply chamber 30 formed behind the wall surfaces 10b and 10d, respectively. Communicate. The lower end of the air supply chamber 30 and the lower end of the exhaust chamber 31 are respectively closed, and only the communication port with the soot duct 35 'serves as an air entrance / exit.

  The lower end portion of the soot duct 35 'communicates with a double floor formed below the smoking room 1'. The conditioned air sent from the air conditioner through the double floor flows into the air supply chamber 30 behind the wall surfaces 10b and 10d from the lower side of the soot duct 35 'and smokes from the air inlet 25 below the wall surfaces 10b and 10d. Each is blown into chamber 1 '.

  An exhaust duct (not shown) is connected to the upper end of the soot duct 35 '. Air contaminated with cigarette smoke in the smoking room 1 ′ is sucked into the exhaust chamber 31 from almost the entire surface of the wall surfaces 10 b and 10 d above the table 21 and exhausted from above the soot duct 35 ′ to the exhaust duct. It is like that.

  In the smoking room 1 ′, a hanging wall 45 as a shield is disposed for each of the wall surfaces 10 b and 10 d, and similarly, an open space 46 is provided between the hanging wall 45 and the ceiling 11 of the smoking room 1. . Even in the smoking room 1 ′, smoke does not stay in the central zone of the smoking room 1 ′ due to the presence of the hanging wall 45 provided at a position higher than the smoker's head and the open space 46 on the upper part. That is, the slit-shaped air supply merges in the central zone of the smoking room 1 ′ and is reversed toward the exhaust ports 26 on both sides. Part of the smoke floats near the ceiling 11 of the smoking room 1 due to buoyancy, but once blocked inside the hanging wall 45 on both sides, the free space above and below the weir (hanging wall 45) (open space 46 and It rapidly flows in the space near the lower surface of the hanging wall 45 and is sucked by the punching metal 27 on both opposing wall surfaces 10b and 10d. In this embodiment, the area is larger in the depth direction than in FIG. 1, but the ratio of the number of people in the room to the area can be increased. Further, in the embodiment shown in FIG. 2, the door 15 is arranged on the wall surface 10a, and the lower portion 50 is undercut 50 so that the amount of air exhausted beyond the air supply amount is led from here to the room.

  Also in this smoking room 1 ′, the air supplied toward the inside of the smoking room 1 ′ is reversed in the direction toward the wall surface 10b and sucked into the exhaust port 26, as in the smoking room 1 described above with reference to FIG. A reversal flow is formed, and the inside of the smoking room 1 can be ventilated with a small number of ventilations. In the smoking room 1 ', the smoker and his / her clothes are exposed to a one-way flow of smoke to minimize the influence of smoke, and there is almost no leakage of smoke outside the room. In addition, according to the smoking room 1 ′, the air supply to the air supply chamber 30 and the air exhaust from the exhaust chamber 31 are performed only from the soot duct 35 ′, so that the upper and lower surfaces of the air supply chamber 30 and the exhaust chamber 31 are closed. Therefore, it is easy to process through parts and connect ducts.

  The present invention is not limited to the embodiment described above, and can be used with appropriate modifications. For example, in the smoking room 1 of FIG. 1, soot ducts 35 may be erected on both ends of the wall surface 10 b, and the rectangular exhaust chamber 31 may be surrounded between the two soot ducts 35. In addition, when a smoking room is manufactured in an existing facility, it may be taken out from an existing air supply duct. If the smoking room is installed near the outer wall, the exhaust may be exhausted from a ventilation fan or the like, or it may be exhausted by joining an exhaust duct such as a toilet duct installed nearby (also used as an exhaust fan). Good.

  However, in the present invention, the saddle duct is not necessarily a requirement, and the upper and lower ends of the wide air supply chamber 30 and the exhaust chamber 31 partitioned at the height of the table are fully opened, and air is supplied and exhausted from the entire surface. May be. In particular, it is suitable for equipment (underfloor chamber method, ceiling chamber method) in which a double floor and a space behind the ceiling formed by a ceiling plate and a ceiling slab serve as an air flow path.

  When supplying air, the air conditioner can provide only the pressure of the air conditioner as long as it can apply pressure from the underfloor double floor, but if it is insufficient, an auxiliary fan is provided under the floor or at the air inlet of the air supply chamber 30. Also good. As a modified example, if the triangular culvert duct itself spreading on the door side is punched in the upper inner wall surface and slits are formed in the lower inner wall surface, and the air chambers for exhaust and air supply are respectively used, The wind speed of the air becomes faster than the depth direction (front side of the paper) because the distance from the air outlet is short, making it less susceptible to interference from door opening and closing.

  In addition, when applied to a floor blowing type air conditioning system, it is desirable not to provide a floor blowing outlet in the smoking room so as not to interfere with the blowing air flow from the air supply opening 25 disposed in the vicinity of the floor surface 12. When refurbishing an existing building, if the existing floor outlet is located in the smoking room, the air flow across the floor will not be disturbed if the opening is closed with a blind plate or the like.

  Although the air supply port 25 is illustrated with a plurality of slits, a single slit continuous in the depth direction or a register with a shutter can be used. In the latter case, the wind direction can be adjusted satisfactorily by positioning the shutter horizontally when supplying cool air in summer and the like, and downward when supplying warm air in winter and the like.

  Although the exhaust port 26 has shown an example in which a large number of circular holes are perforated, it may be a long hole shape, an elliptical shape, a ginkgo shape, or a diamond shape opening. Further, the same effect can be obtained even if one surface is formed of a breathable material such as cloth and has an appropriate resistance such as gradually reducing the exhaust flow path downward.

  Further, the wall member in which the air supply port 25 and the exhaust port 26, the internal blower, and the table 21 are integrally manufactured can be installed at a predetermined position and provided as a smoking room if an air circulation opening is provided in the ceiling or floor. It is possible to demonstrate the effects of ease of construction and quickness that it can be configured.

  It is not always necessary to use conditioned air from the air conditioner for air supply, and outside air may be taken in and purified by a filter provided in the communication path to the air supply port 25 for air supply. In many cases, the smoking rooms 1 and 1 'are provided at the corners of the installation floor. In such a case, if air is communicated from the vent caps provided on the outer wall, the duct cost can be reduced. In this case, an electric heater can be provided in the communication path as a countermeasure against cold in winter.

  Further, one of the supply chamber and the exhaust chamber may not be connected to the main duct. For example, if the ceiling is configured as a conditioned air or exhaust passage, the ceiling chamber can be indirectly supplied and exhausted using the power of the air conditioner fan or exhaust fan.

  The table 21 may be built integrally with the wall surfaces 10b and 10d, or may be installed adjacent to the wall surfaces 10b and 10d as a separate table with legs. Further, if a photocatalyst is applied to the wall surfaces 10a, 10b, 10c, 10d, the ceiling 11, the floor surface 12, and the hanging wall 45 so as to be able to irradiate ultraviolet rays as appropriate, it becomes a countermeasure against dirt and the frequency of cleaning can be reduced.

  The result of simulating the state of smoke discharge in the smoking room 1 described with reference to FIG. 1 is shown in FIG. FIG. 3A is a perspective view showing a simulation result when the hanging wall 45 is directly attached to the ceiling 11 of the smoking room 1 and the open space 46 is formed. FIG. 3B is a perspective view of FIG. It is a front view which shows the same simulation result as). FIG. 3C is a perspective view showing a simulation result when the hanging wall 45 is attached to the ceiling 11 of the smoking room 1 with a gap and the open space 46 is present, and FIG. It is a front view which shows the same simulation result as 3 (c). FIG.3 (e) is a perspective view which shows the simulation result at the time of not providing the hanging wall 45 in the ceiling 11 of the smoking room 1, FIG.3 (f) shows the same simulation result as FIG.3 (e). It is a front view. FIG. 4 is an explanatory diagram schematically showing the simulation results of FIGS. 3 (a) and 3 (b). FIG. 5 is an explanatory diagram schematically showing the simulation results of FIGS. 3 (c) and 3 (d). FIG. 6 is an explanatory diagram schematically showing the simulation results of FIGS. 3 (e) and 3 (f).

In the smoking room 1 described in FIG. 1, in the embodiment, in the smoking room 1 having a chamber volume of 14.3 m ³ with dimensions of 2.9 m × 2 m × 2.5 m (height), the ventilation frequency is 20 times / h, exhaust The air volume was 290 m ³ / h, and the supply air volume was 250 m ³ / h (wind speed 3.93 m / s). The air supply port 25 formed below the wall surface 10b has a slit shape of 700 mm × 50 mm arranged in two places, and the wind speed is 1.00 m / s. Moreover, the exhaust port 26 formed above the wall surface 10b uses a punching metal 27 having an opening ratio of 562 mm × 338 mm × 4 sheets + 588 mm × 338 mm × 4 sheets with an aperture ratio of 10% (effective opening area 0.155 m ² ). The lower stage was configured using a punching metal 27 of 562 mm × 337 mm × 4 sheets + 588 mm × 337 mm × 4 sheets with an aperture ratio of 20% (effective opening area 0.310 m ² ). The average wind speed at the exhaust port 26 is 0.18 m / s.

  When the hanging wall 45 is directly attached to the ceiling 11 of the smoking room 1 and the open space 46 is formed, it is generated from the vicinity of the ashtray 20 on the table 21 as shown in FIGS. It was confirmed that a part of the smoke that had flown into the back side of the drooping wall 45 (the side far from the wall surface 10 b) and the smoke stayed in the upper part of the smoking room 1.

  On the other hand, when the hanging wall 45 is attached to the ceiling 11 of the smoking room 1 with a gap and the open space 46 is provided, as shown in FIGS. 3 (c) and 3 (d) and FIG. Even if a part of the smoke generated from the vicinity of the ashtray 20 on the wall 21 circulates to the back side of the hanging wall 45 (the side far from the wall surface 10b), the smoke flows toward the wall surface 10b through the open space 46 and exhausts to the outside. It was confirmed that

  Further, when the hanging wall 45 is not provided on the ceiling 11 of the smoking room 1, a part of the smoke generated from the vicinity of the ashtray 20 on the table 21 as shown in FIGS. Was swirled in the room, and it was confirmed that smoke mixed in the entire upper part of the room.

  The present invention responds to the demand for smoke separation in recent years, and can provide a space allowing smoking in a building, along with flexibility and amenities, at low cost and with energy saving, and is useful as a building facility.

It is a disassembled perspective view of the smoking room which concerns on embodiment of this invention. It is explanatory drawing of the smoking room which concerns on another embodiment of this invention. It is explanatory drawing which shows the result of having simulated the mode of discharge of the smoke in the smoking room demonstrated in FIG. It is explanatory drawing which showed typically the simulation result of Fig.3 (a) (b). It is explanatory drawing which showed typically the simulation result of FIG.3 (c) (d). It is explanatory drawing which showed typically the simulation result of FIG.3 (e) (f).

Explanation of symbols

1, 1 'Smoking room 10a, 10b, 10c, 10d Wall surface 15 Door 11 Ceiling surface 12 Floor surface 20 Ashtray 21 Table 25 Air inlet 26 Exhaust port 27 Punching metal 30 Air supply chamber 31 Exhaust chamber 35, 35 竪 Duct 40 Exhaust Duct 45 Hanging wall 46 Open space

Claims (4)

On one wall of the smoking room, which is partitioned by four wall surfaces,
Air is supplied indoors at a wind speed of 0.3 to 0.7 m / sec below the height position of the ashtray, exhausted above the height position of the ashtray, and no other auxiliary airflow is generated. The air supplied toward the room is configured to be exhausted by being reversed in a direction toward the one wall surface ,
Smoking characterized in that air supplied toward the room passes through the upper and lower shields provided on the ceiling of the smoking room while being exhausted while being reversed in the direction toward the one wall surface. Room ventilation method. In one wall surface of a smoking room that is partitioned by four wall surfaces and another wall surface facing the one wall surface,
Supply air toward the room at a wind speed of 0.3 to 0.7 m / sec below the height position of the ashtray, exhaust each above the height position of the ashtray, and generate other auxiliary airflow The air supplied toward the room is reversed and exhausted in a direction toward the one wall surface or the other wall surface ,
The air supplied toward the room passes above and below the shield provided on the ceiling of the smoking room while being exhausted while being reversed and exhausted toward the one wall surface or the other wall surface. A smoking room ventilation method.   On one wall of the smoking room, which is partitioned by four wall surfaces, an air supply port is provided below the height position of the ashtray to supply a strip-like or linear airflow that is long in the width direction. An exhaust port for exhausting from almost the entire surface is provided above,
  Providing a shield substantially parallel to the one wall surface on the ceiling of the smoking room;
  A smoking room, wherein an open space is provided between the shield and the ceiling of the smoking room.   Supplying a strip-like or linear airflow that is long in the width direction below the height of the ashtray on one wall of the smoking room that is partitioned by four wall surfaces and the other wall facing the wall. A vent is provided, and an exhaust vent is provided above the height of the ashtray to exhaust air from substantially the entire surface.
  Providing a shield substantially parallel to the one wall surface on the ceiling of the smoking room;
  A smoking room, wherein an open space is provided between the shield and the ceiling of the smoking room.

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