JP4574317B2 - Heating air conditioning method and heating air conditioning system - Google Patents

Description

  The present invention relates to a heating air-conditioning method and system for heating by supplying high-temperature air into an air-conditioned space.

  In a room where heating operation is performed in winter, warm air tends to accumulate near the ceiling surface, and the temperature decreases near the floor surface, and variations in temperature distribution tend to occur in the height direction. In particular, when heating a large space with a high ceiling and a large volume, it is common to supply warm air into the room from a height of 3 m or more using a blowout port such as a nozzle. When warm air is supplied, the blown air rises due to the influence of buoyancy, so it becomes difficult for the warm air to reach the living area (generally, a space of about 2 m or less above the floor). In addition, when heating a factory space where pollutants such as dust are generated, supplying hot air containing fresh outside air from a high position makes it difficult for fresh outside air to reach the living area, and the air in the living area is cold. Since it is not stirred and contaminated air is not diluted, the air quality deteriorates. For example, when warm air containing outside air is supplied from 4m to a room at a parts factory with a ceiling height of 10m, the outside air does not reach the living area, so the dust concentration is generally high and the variation is large.

  In order to solve such a problem, for example, an air jet nozzle is installed in the vicinity of the ceiling, and the warm air on the ceiling is blown down to the living area and the contaminated air in the living area is stirred. However, in order for hot air to reach the living area from a high position, air must be blown toward the living area at a considerably high blowing speed, which may cause draft discomfort to people living in the living area. Become. For example, when air is stirred with an air jet nozzle from near the ceiling in a parts factory with a ceiling height of 10 m, the contaminated air is mixed and diluted, but the dispersion of the dust concentration is still large. In order to eliminate the variation, it is necessary to increase the number of operating air jet nozzles and promote mixing, but this will further increase draft discomfort.

  Therefore, as a prior art, a method is known in which warm air is blown over the floor surface by the Coanda effect by blowing out warm air toward the floor surface of the air-conditioned space with a small air volume and low air speed ( For example, see Patent Document 1). An apparatus is also disclosed in which air near the ceiling in an air-conditioned space is made to flow along a floor surface from a window portion by providing a fan and a rectifying member (see, for example, Patent Document 2).

JP 2000-291989 A Japanese Patent Laid-Open No. 2004-19951

  According to the inventions of these Patent Documents 1 and 2, it is possible to supply warm air to the living area and to avoid the deterioration of the air quality in the living area by causing fresh outside air to reach. However, there is still room for improvement in terms of draft discomfort for people in the residential area.

  An object of the present invention is to further improve draft discomfort in a residential area while avoiding deterioration of air quality in the residential area.

According to the present invention, there is provided a heating / air-conditioning method in which heating is performed by supplying high-temperature air into an air-conditioned space, the high-temperature air having a higher temperature than air accumulated in a residential area formed below the air-conditioned space. A plurality of air inlets are arranged vertically in the lower part of one side surface of the air-conditioned space, and a swirl component is applied to a residential area formed below the air-conditioned space from the air inlets. The supplied high-temperature air is supplied, while the same amount of high-temperature air supplied into the air-conditioned space is exhausted from the air-conditioned space, and a temperature sensor is installed in the living area. Based on the above, a heating air-conditioning method is provided in which the heating temperature of a heater for heating high-temperature air is controlled . In the present invention, the high-temperature air supplied into the air-conditioned space is air that is hotter than the air accumulated in the living area formed below the air-conditioned space. An upper limit value and a lower limit value may be set for the temperature of the high-temperature air supplied into the air-conditioned space, and the temperature of the high-temperature air may be regulated within a predetermined temperature range.

Further, according to the present invention, there is provided a heating / air-conditioning system for heating by supplying high-temperature air into the air-conditioned space, wherein the high- temperature air has a higher temperature than air accumulated in a residential area formed below the air-conditioned space. Air supply port that supplies high-temperature air into the air-conditioned space and an exhaust port that exhausts indoor air from the air-conditioned space. Arranged side-by-side, supplying hot air from the plurality of air supply openings toward the living area below the air-conditioned space, and turning the plurality of air supply openings to the hot air supplied into the air-conditioned space Providing a guide means for providing a component, installing a temperature sensor in a living area, and controlling the heating temperature of a heater for heating hot air based on the room temperature detected by the temperature sensor, An air conditioning system is provided. In the heating and air conditioning system according to the present invention, the guide means includes a plurality of guide fins arranged radially around the central axis of the air supply port, and the plurality of guide fins are provided on the air supply port. They may be provided so as to be inclined at the same angle with respect to a plane orthogonal to the central axis. The guide means is a cylindrical inner member arranged so as to surround a plurality of guide fins arranged radially around the central axis of the air supply port. You may have a wall surface. Furthermore, a return duct may be provided for supplying the air exhausted from the exhaust port to the air-conditioned space again from the air supply port.

  When high-temperature air is supplied into the air-conditioned space from the air supply port, the air-conditioned space is attracted to the supplied high-temperature air and moves together. In the present invention, when high-temperature air is supplied from the air supply port toward the living area formed in the lower part of the air-conditioned space, the swirl component is given to the high-temperature air supplied by the guide means, thereby increasing the amount of high-temperature air. The amount of attraction (attraction ratio) of air in the air-conditioned space to be attracted can be increased. As the amount of attraction increases in this way, the speed of the high-temperature air is quickly decelerated after supplying air into the conditioned space according to the law of conservation of momentum. For this reason, the draft discomfort accompanying the supply of high-temperature air toward the living area hardly occurs.

  As the amount of attraction increases in this way, it is possible to quickly raise the temperature by mixing the low-temperature air in the living area formed below in the air-conditioned space with the supplied high-temperature air. The air that has been heated by mixing the low-temperature air in the living area and the high-temperature air that has been supplied into the air-conditioned space from the air supply port, It will rise quickly and reach the ceiling. As a result, pollutants generated in the living area can be efficiently diluted and moved to the vicinity of the ceiling.

  In addition, the air that has risen near the ceiling in this way comes into thermal contact with the wall surface of the air-conditioned space, and is cooled by the wall surface that has been cooled by the outside air to a low temperature, and then descends again to the residential area. And after that, it mixes with the high temperature air supplied from an air supply port, is heated up again, and rises to the ceiling vicinity. Thus, the air in the living area and the air in the vicinity of the ceiling circulate in the air-conditioned space, so that the air in the living area is sequentially replaced with fresh air that has descended from the vicinity of the ceiling, and there is no draft discomfort. You will be able to heat up.

  On the other hand, the air in the air-conditioned space is exhausted from the exhaust port while circulating the air in the living area in the air-conditioned space and the air in the vicinity of the ceiling. Replace with hot air one after another. In this way, it is possible to remove pollutants and the like generated in the living area and avoid deterioration of indoor air. Thus, according to the present invention, it is possible to heat the living area in the air-conditioned space by the replacement ventilation method.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram for explaining a heating air-conditioning system 1 according to an embodiment of the present invention.

  The air-conditioned space 10 is, for example, an office room, a computer room, a guest room, a banquet hall, a game room, a printing room, a hospital room, a toilet, a kitchen, a machine room, a boiler room, a factory, etc., and is partitioned by a ceiling, a floor, and a side wall. . In the example shown in FIG. 1, a person 12 or other equipment (not shown) that generates contaminants such as dust in a living area 11 (generally a space of about 2 m or less on the floor) 11 formed below the air-conditioned space 10. Z) is present. An air supply port 15 is provided at the lower part of one side surface (in the drawing, the right side surface in the air conditioned space 10) 17 in the air conditioned space 10, and similarly, an exhaust port is provided at the upper part of the one side surface 17 in the conditioned space 10. 16 is provided. The detailed configuration of the air supply port 15 will be described later. An air supply unit 20 is provided on the lower back side of one side surface 17 of the air-conditioned space 10, and the front surface 21 of the air supply unit 20 is exposed at the lower side of the one side surface 17 of the air-conditioned space 10.

  As shown in FIG. 2, a plurality of circular air inlets 15 are arranged in the vertical and horizontal directions on the front surface 21 of the air supply unit 20 exposed in the lower portion of the one side surface 17 of the air-conditioned space 10 in this way. The air supply unit 20 is supplied with high-temperature air SA produced by taking fresh outside air OA into the air conditioner 22 via the air supply duct 23. As a result, the high-temperature air SA is supplied from the plurality of air supply ports 15 formed in the front surface 21 of the air supply unit 20 toward the living area 11 below the air-conditioned space 10. Note that the high-temperature air SA supplied from the air supply port 15 in this way means air that is hotter than the air accumulated in the living area 11 in the air-conditioned space 10. The air conditioner 22 includes a heater 25 and a filter (not shown) for heating the outside air OA to produce the high temperature air SA, and the produced high temperature air SA is supplied with the air supply duct 23 and the air supply unit 20. And an air supply fan 27 that is supplied into the air-conditioned space 10. The heater 25 is composed of, for example, a hot water coil, an electric heater, or the like.

  As shown in FIG. 3, a plurality of guide fins 30 for fixing a swirling component to the high-temperature air SA blown into the air-conditioned space 10 are fixed to each air supply port 15. A support member 31 is disposed on the central axis of each air supply port 15, and a plurality of guide fins 30 are mounted on the support member 31 at substantially equal intervals, so that the support member 31 is arranged around the central axis of the air supply port 15. A plurality of guide fins 30 are arranged radially.

  The plurality of guide fins 30 are provided obliquely so as to have the same inclination angle with respect to a plane orthogonal to the central axis 15 ′ of the air supply port 15 (for example, the front surface 21 of the air supply unit 20). Yes. 4 and 5 are explanatory diagrams of the inclination angle of each guide fin 30. In FIGS. 4 and 5, the inclination directions of the guide fins 30 are opposite to each other. That is, in FIG. 4, when the front surface 21 of the air supply unit 20 is viewed from the indoor side of the air-conditioned space 10 with respect to the high-temperature air SA blown into the air-conditioned space 10 from the air supply port 15, Each guide fin 30 is inclined and provided so as to give a swirl component. On the other hand, in FIG. 5, when the front surface 21 of the air supply unit 20 is viewed from the indoor side of the air-conditioned space 10 with respect to the high-temperature air SA blown into the air-conditioned space 10 from the air supply port 15, Each guide fin 30 is provided with an inclination so as to provide a component.

  In this way, by attaching the fins 30 inclined about the support member 31 in each air supply port 15 in a radial manner, the high-temperature air SA that has flowed from the inside of the air supply unit 20 toward the air supply port 15 is When passing through the air supply port 15, it can be forced to flow along the surface of each fin 30. Thereby, the swirl component in the clockwise direction or the counterclockwise direction around the central axis 15 ′ is respectively given to the high-temperature air SA blown out from the air supply port 15 toward the air-conditioned space 10.

  As described above, a plurality of air supply ports 15 are arranged vertically and horizontally on the front surface 21 (surface on the inner side of the chamber forming the air-conditioned space 10) of the air supply unit 20. The swirling components of the high-temperature air SA blown out from the mouth 15 are in the relationship of mutually opposite rotation directions. That is, for example, as shown in FIG. 6, four air supply ports 15a, 15b, 15c, and 15d arranged in the vertical direction will be described as an example. The first air supply port 15a and the third air supply port from the top are described. In 15c, the inclination direction of the guide fin 30 is in the state described with reference to FIG. 4, and when the front surface 21 of the air supply unit 20 is viewed from the indoor side of the air-conditioned space 10 from the air supply port 15a and the air supply port 15c. , The hot air SA to which the swirl component in the counterclockwise direction is given is blown out. On the other hand, in the second air supply port 15b and the fourth air supply port 15d from the top, the inclination direction of the guide fin 30 is the state described in FIG. 5, and from these air supply ports 15b and 15d, When the front surface 21 of the air supply unit 20 is viewed from the indoor side of the air-conditioned space 10, the high-temperature air SA to which the swirl component in the clockwise direction is given is blown out. As described above, the high-temperature air swirling in the rotation directions opposite to each other between the adjacent air supply port 15a and the air supply port 15b, between the air supply port 15b and the air supply port 15c, and between the air supply port 15c and the air supply port 15d, respectively. SA is blown out.

  That is, as shown in FIG. 7, high-temperature air SA that swirls in the same rotational direction from the four air supply ports 15a ′, 15b ′, 15c ′, and 15d ′ aligned in the vertical direction (in the example shown in FIG. 7, In either case, when high-temperature air SA) swirling in the counterclockwise direction is blown out, the air supply port 15a 'and the air supply port 15b', the air supply port 15b 'and the air supply port 15c', and the air supply port 15c The high-temperature air SA is blown out in a direction that cancels each other between “and the air supply port 15d”. As a result, the swirl components of the high-temperature air SA blown out from the air supply ports 15a ', 15b', 15c ', 15d' are canceled out.

  On the other hand, as described with reference to FIG. 6, if the swirl components of the high-temperature air SA blown from the air supply ports 15a, 15b, 15c, and 15d are alternately reversed, the air supply ports 15a and 15b Since the hot air SA is blown out in the same direction between the air supply port 15b and the air supply port 15c and between the air supply port 15b and the air supply port 15c, each air supply port The swirling components of the high-temperature air SA blown out from 15a, 15b, 15c, and 15d are not cancelled, and the swirl motions are promoted.

  In FIG. 6, the relationship between the upper and lower air supply ports 15 has been described. However, as described above with reference to FIG. 2, a plurality of air supply ports 15 are arranged vertically and horizontally on the front surface 21 of the air supply unit 20. They are arranged side by side. In the illustrated embodiment, as shown in FIG. 8, in the relationship between the air supply ports 15 arranged vertically, the swirl components of the high-temperature air SA blown out from the adjacent air supply ports 15 are in opposite rotation directions. Although the inclination direction of the fin 30 provided in each air supply port 15 is set so that it may become a relationship, in the relationship of the air supply port 15 arranged in right and left, it blows off from the adjacent air supply port 15 The inclination direction of the fins 30 provided in each air supply port 15 is set so that the swirl components of the high-temperature air SA have the same rotational direction relationship.

  As shown in FIG. 3, a cylinder 32 is attached around the plurality of guide fins 30 attached to each air supply port 15. A cylinder 32 is attached to each air supply port 15 in a state where the center axis of the cylinder 32 coincides with the central axis 15 ′ of the air supply port 15. The inner diameter of the cylinder 32 is set to be substantially equal to the outer diameter of the plurality of guide fins 30 attached to each air supply port 15. Accordingly, in each air supply port 15, the outer periphery of the plurality of guide fins 30 is surrounded by the inner wall surface 33 of the cylinder 32 (cylindrical inner wall surface 33 centering on the central axis 15 ′ of the air supply port 15). It is in a state. As a result, as shown in FIGS. 4 and 5, the high-temperature air SA blown from the inside of the air supply unit 20 through the air supply port 15 into the air-conditioned space 10 is a cylinder attached to each air supply port 15. By passing through the inside of the cylinder 32 and flowing along the surface of each guide fin 30 in the cylinder 32, a swirl component in the clockwise direction or the counterclockwise direction is forcibly given to the high temperature air SA.

  Here, as shown in FIG. 3, in each air supply port 15, the length L of the cylinder 32 in the direction along the central axis 15 ′ of the air supply port 15 is also along the central axis 15 ′ of the air supply port 15. It is set to be more than half of the width l of the guide fin 30 in the above direction. Thereby, in the direction along the central axis 15 ′ of the air supply port 15, at least half of the width l of the guide fin 30 is configured to be surrounded by the inner wall surface 33 of the cylinder 32. Yes. In the example shown in FIG. 3, the length L of the cylinder 32 is set so as to be longer than the width l of the guide fin 30, and thereby, along the central axis 15 ′ of the air supply port 15. In the direction, all the portions of the width l of the guide fin 30 are surrounded by the inner wall surface 33 of the cylinder 32.

  As shown in FIG. 1, an exhaust duct 41 including an exhaust fan 40 is connected to the exhaust port 16 disposed in the upper part of the air-conditioned space 10. As a result, air in the air-conditioned space 10 (air contaminated by a human body or various devices existing in the air-conditioned space 10) is exhausted EA to the outside through the exhaust duct 41.

  In the heating air-conditioning system 1 configured as described above, for example, in the winter season when the heating operation is performed, the wall surface of the air-conditioned space 10 is cold due to a low external temperature or the like, and the air-conditioned space that is in thermal contact with the wall surface The air in 10 is cooled and descends, and low-temperature air inevitably accumulates in the living area 11 in the air-conditioned space 10. In addition, since humans 12 and various devices are present in the living area 11 in the air-conditioned space 10, contaminants such as dust accumulate in the living area 11.

  Therefore, the hot air SA taken in by the air conditioner 22 by taking in fresh outside air is supplied into the air-conditioned space 10 from the air supply duct 23 and the air supply unit 20 through the air supply port 15 by the operation of the air supply fan 27. When passing through the air supply ports 15, the high-temperature air SA passes through the cylinders 32 attached to the respective air supply ports 15, and at this time, along the surface of each guide fin 30 within the cylindrical inner wall surface 33. As a result, the swirl component in the clockwise direction or the counterclockwise direction is forcibly given to the high-temperature air SA. In this way, the high-temperature air SA is supplied into the air-conditioned space 10 while turning from each supply port 15. In this case, the periphery of the guide fins 30 is surrounded by the cylindrical inner wall surface 33 in each air supply port 15, so that each air supply port 15 is compared with the case where there is no cylinder 32 (inner wall surface 33). Thus, a stronger swirl component can be reliably given to the high-temperature air SA supplied into the air-conditioned space 10.

  When hot air SA is supplied toward the air-conditioned space 10 while turning from each air supply port 15, the hot air SA blown out from each air supply port 15 is transferred to the living area 11 in the air-conditioned space 10. The low temperature air that has been attracted is attracted and mixed. In this case, in the illustrated heating air-conditioning system 1, since the swirl component is given to the high-temperature air SA blown from the air supply port 15, the amount of low-temperature air attracted by the high-temperature air SA (attraction ratio) ) Will increase. Along with this, the speed of the high-temperature air SA is quickly reduced after being blown out from each air supply port 15 in accordance with the law of conservation of momentum. For this reason, the draft discomfort accompanying the supply of the high-temperature air SA toward the living area 11 can be hardly generated.

  Further, as the amount of attraction increases, the low-temperature air in the living area 11 formed below the air-conditioned space 10 can be quickly mixed with the supplied high-temperature air SA. In this case, since the high temperature air SA supplied from the air supply port 15 is higher in temperature than the air accumulated in the living area 11, the high temperature air SA and the air in the living area 11 are mixed in this way. In the vicinity of the air supply unit 20, the heated air (mixed air) can be quickly created. The air (mixed air) thus heated rises quickly in the air-conditioned space 10 immediately after the supply of air, and reaches the vicinity of the ceiling in the air-conditioned space 10 due to the temperature rise. Thereby, the pollutant etc. which generate | occur | produced in the residential area 11 can be diluted efficiently, and it can move to the ceiling vicinity in the air-conditioning space 10. FIG.

  Further, the air that has risen near the ceiling in the air-conditioned space 10 is cooled by the wall surface cooled by the outside air by being in thermal contact with the wall surface (ceiling surface or side wall surface) of the air-conditioned space 10. It will descend again. In this case, when the side wall surface of the air-conditioned space 10 is a window portion, the air in the air-conditioned space 10 is cooled particularly on the side wall surface. Goes down.

  The air (cold air) thus moved from the vicinity of the ceiling in the air-conditioned space 10 to the living area 11 is then mixed with the high-temperature air SA supplied from the air supply port 15 and heated again, so that the air in the air-conditioned space 10 It will rise near the ceiling. Thus, the air in the air-conditioned space 10 and the air in the vicinity of the ceiling circulate, so that the air temperature in the air-conditioned space 10 can be averaged without causing draft discomfort.

  On the other hand, the air in the air-conditioned space 10 is exhausted from the exhaust port 16 while the air in the living area 11 in the air-conditioned space 10 and the air in the vicinity of the ceiling are circulated in this manner. The fresh high-temperature air SA supplied from is sequentially replaced. In this way, it is possible to remove contaminants and the like generated in the living area 11 and avoid deterioration of indoor air.

  According to the heating air-conditioning system 1, the hot air SA supplied toward the living area 11 is quickly mixed with the low-temperature air in the living area 11 after supplying air, and is near the ceiling in the air-conditioned space 10. Therefore, the high-temperature air SA is less likely to be directly blown against the person 12 in the living area 11 in the air-conditioned space 10, and uncomfortable feeling due to the draft can be reduced. In addition, by moving pollutants generated in the living area 11 to the vicinity of the ceiling in the air-conditioned space 10 and exhausting them during circulation, the air quality of the living area 11 in the air-conditioned space 10 is kept good and a comfortable environment. Can be made.

  Although an example of a preferred embodiment of the present invention has been described above, the present invention is not limited to the illustrated embodiment. In FIG. 1, an example in which the exhaust port 16 is provided on the upper portion of the one side surface 17 in the air-conditioned space 10 in which the air supply port 15 is provided is shown, but the exhaust port 16 is connected to the ceiling surface or floor surface of the air-conditioned space 10. It may be provided on the side surface. Alternatively, the air supply unit 20 may be installed in the pericounter unit, and the cold draft generated by cooling at the window unit may be attracted by the air supply unit 20 to be raised / processed.

  Further, for example, the cylindrical inner wall surface 33 surrounding the guide fins 30 in each air supply port 15 may be made of a sound absorbing material. In that case, the cylinder 32 itself attached to each air supply port 15 may be made of a sound absorbing material, or the sound absorbing material may be arranged on the inner surface of the cylinder 32. By using, for example, urethane foam as the sound absorbing material, generated noise can be suppressed.

  As shown in FIG. 9, a perforated plate 51 in which a large number of air holes 50 are formed in front of the front surface 21 of the air supply unit 20 is arranged in parallel with the front surface 21, and a predetermined gap is formed in front of each air supply port 15. You may comprise so that the perforated plate 51 may be provided in M. Then, the high-temperature air SA ejected from each air supply port 15 is further supplied into the air-conditioned space 10 through the vent holes 50 formed in the perforated plate 51, thereby further improving the airflow attenuation characteristics. it can. When the porous plate 51 is provided in front of the air supply port 15 in this way, the aperture ratio of the porous plate 51 (the area of the vent hole 50) is preferably 40% or more. Further, the separation distance M from the air supply port 15 to the perforated plate 51 is preferably 7% or more of the opening diameter D of the air supply port 15.

  In addition, in FIG. 3 etc., although the example surrounding the circumference | surroundings of the guide fin 30 by the inner wall surface 33 of the cylinder 32 with which each supply port 15 was mounted was demonstrated, the cylinder 32 can also be abbreviate | omitted. If the cylinder 32 is provided, the swirl component in the clockwise direction or the counterclockwise direction can be more reliably given to the high-temperature air SA when air is supplied into the air-conditioned space 10. However, it is sufficient if the inner wall surface 33 surrounding the guide fin 30 is provided, and the cylinder 32 is not necessarily required. That is, when the front surface 21 of the air supply unit 20 has a sufficient thickness and the circular air supply port 15 is formed, the length L of the inner wall surface 33 formed on the cylindrical shape is the guide fin 30. The cylinder 32 can be omitted if it is more than half of the width l. For example, if the front surface 21 of the air supply unit 20 is made of glass wool or the like having an excellent sound absorbing effect to a sufficient thickness, not only the cylinder 32 can be omitted, but also generation noise can be expected.

  4 and 5, the configuration in which the plurality of guide fins 30 are radially attached to the support member 31 has been described. However, the configuration of the blowing member attached to each air supply port 15 is not limited to this configuration. For example, a configuration such as a swirl flow forming plate previously disclosed by the present applicant in Japanese Patent Laid-Open No. 9-250803 may be used. That is, for example, as shown in FIG. 10, a circular support member 31 is left in the center of a circular flat plate 55, and the periphery of the support member 31 is punched out as a fan-shaped guide fin 30, and each guide fin 30 is predetermined. It can be easily formed by bending and inclining at an angle of. In any case, it is only necessary to form the guide fins 30 that can give the swirl component.

  In the embodiment shown in FIG. 8, the swirl components of the high-temperature air SA blown out from the adjacent air supply ports 15 between the air supply ports 15 arranged vertically are However, an example is shown in which the swirl components of the high-temperature air SA blown from the adjacent air supply ports 15 are set to have the same rotational direction between the air supply ports 15 arranged horizontally. However, the inclination direction of the fins 30 provided in each air supply port 15 does not necessarily have to be set as described above. For example, although not shown, the swirl components of the high-temperature air SA blown from the adjacent air supply ports 15 are in the opposite rotational directions between the air supply ports 15 arranged side by side. The swirl components of the high-temperature air SA blown out from the adjacent air supply ports 15 may be set so as to have the same rotational direction relationship between the air supply ports 15 arranged at the same position. Further, between any of the air supply ports 15 arranged vertically and horizontally, each swirl component of the high-temperature air SA blown out from the adjacent air supply ports 15 has a relationship in the opposite rotation direction. The inclination direction of the fins 30 provided in the air supply port 15 may be set. Further, the swirl components of the high-temperature air SA blown from all the air supply ports 15 may be set so that all have the same rotational direction. Further, the swirl component of the high-temperature air SA blown from each air supply port 15 may be set so as to be irregularly the same rotation direction or the reverse rotation direction. The rotation direction of the swirl component of the high-temperature air SA blown from each air supply port 15 can be arbitrarily set.

  In addition, a circular air supply port 15 is directly opened in the air supply duct 23, and the high temperature air SA is blown into the air-conditioned space 10 from the air supply port 15, and the swirl component is added to the hot air SA there. A plurality of guide fins 30 and a cylinder 32 for giving may be attached. Then, the air supply unit 20 can be omitted. In addition, a guide fin, a cylinder, or a perforated plate may be attached to an air supply unit constructed architecturally, and the air supply may be ventilated in the air supply unit. The air supply unit may use a wall or a double floor.

  The duct connection to the air supply unit may be performed from above or from the side of the air supply unit, or from the lower side. Moreover, you may ventilate an air supply in a double floor, and you may ventilate to an air supply unit. In this case, the air supply duct to the air supply unit can be omitted. Further, an air supply unit may be installed around the pillar.

  Further, for example, by providing a return duct 45 indicated by a dotted line in FIG. 1, a part of the exhaust EA may be returned to the air conditioner 22 and reused. Further, the exhaust fan 40 may be omitted, and the heated air accumulated in the upper part of the air-conditioned space 10 may be sequentially pushed out by the high-temperature air SA supplied downward in the air-conditioned space 10. Further, the exhaust port 16 may be formed in the ceiling of the air-conditioned space 10. Furthermore, the heating / air-conditioning system of the present invention is not limited to a room where humans always stay, but various air-conditioned spaces such as those described above, where there are humans and various devices, pencil buildings, atriums, domes, one-story factories. It can also be applied to.

  As shown in FIG. 1, a temperature sensor 46 is installed in the living area 11 in the air-conditioned space 10, and the heating temperature of the heater 25 in the air conditioner 22 is controlled based on the room temperature detected by the temperature sensor 46. You may drive | operate so that the room temperature of the residential area 11 may become fixed temperature. In this case, in the present embodiment, the high-temperature air SA supplied into the air-conditioned space 10 once rises near the ceiling and is then cooled and reaches the living area 11. There is a time delay until 11 is reached. For this reason, an upper limit value and a lower limit value are set for the heating temperature of the heater 25, and the temperature of the high-temperature air SA (air supply temperature) supplied into the air-conditioned space 10 is preferably regulated within a predetermined temperature range. If the temperature range of the high-temperature air SA is not regulated, as shown in FIG. 11, the fluctuation range of the temperature (supply-air temperature) of the high-temperature air SA supplied into the air-conditioned space 10 becomes large, and the room temperature of the living area 11 It takes a long time to stabilize. On the other hand, if the temperature range of the high-temperature air SA is regulated within a certain range, the fluctuation range of the temperature of the high-temperature air SA (the supply air temperature) supplied into the air-conditioned space 10 is suppressed to be small, and the living area The time until the room temperature of 11 is stabilized can also be shortened. It is to be noted that the temperature of the high-temperature air SA supplied into the air-conditioned space 10 (supply temperature) is constant and, for example, the supply fan 27 is set so that the detected temperature of the temperature sensor 46 installed in the living area 11 becomes a set value. The amount of supply of the high-temperature air SA may be changed by controlling the amount of operation. Further, warm water or floor heating using a heater may be added.

As shown in FIG. 12, a floor area of 15 m × 16 m in a plan view, a floor area of 190 m ² in which a partition (non-air-conditioned space) is formed in a part of the interior is 7.1 m × 7.2 m, the ceiling height Measurement was performed in a 10 m conditioned space 10 (machine working room). In the embodiment of the present invention, the air supply unit 20 having an air supply port formed on the front surface having a width of 0.6 m and a height of 2.1 m is installed on the floor. As in the case described above with reference to FIG. 1 and the like, a plurality of guide fins for imparting a swirling component to the hot air SA are respectively attached to a plurality of air supply openings opened on the front surface of the air supply unit 20. The guide fin is surrounded by a cylinder, and hot air SA to which a swirling component is given at an average outlet initial speed of 0.9 m / s is supplied into the room from each air supply port. On the other hand, in Comparative Example 1, the air supply unit 20 is the same as that of the embodiment of the present invention, but no guide fins are provided for giving a swirling component to each air supply port, and the blowing speed is 0.3 m / s. Hot air SA was supplied indoors at a slight wind speed. In Comparative Example 2, hot air SA was supplied in the horizontal direction by a nozzle (not shown) having a diameter of 500 mm installed at a height of 4 m.

As shown in FIG. 12, machine tools H1 to H4 are arranged in the conditioned space 10, and contaminants and the like by these machine tools H1 to H4 and workers (not shown) in the room are present. It has occurred. At each point A to D shown in FIG. 12, the spatial distribution of temperature and pollutants was measured and compared. Point A is immediately in front of the air supply unit, point B is the front position of the air supply unit farther than point A, and point C is the front position of the air supply unit further away from point B. . The point D is not the front of the air supply unit, but a position around the partition. In order to simulate the pollutant, a mixed gas of SF ₆ and He whose density is adjusted to be equal to that of air as a tracer gas from a position 1 m above the floor of the point B is discharged at a constant flow rate. The spatial density in the case of 2 was measured. In addition, since the wall surface and ceiling of the air-conditioned space 10 are constructed of asbestos slate and frosted glass that are inferior in heat insulation, the average heat passage rate is about 6 W / (m ² · K), and the heating through-flow load is large. In both the examples of the present invention and Comparative Examples 1 and 2, the air conditioning air volume (total outside air operation) was adjusted to 4000 m ³ / h, the supply air temperature was adjusted to the same condition as 30 ° C., and the outside air temperature was 10 ° C. Each was measured.

  FIG. 13 shows the upper and lower sides in the air-conditioned space 10 in the case of the embodiment of the present invention and the comparative examples 1 and 2 measured at point C during operation with the same air-conditioning air volume, supply air temperature, outside air temperature, and indoor load. It is the graph which compared temperature distribution. In the embodiment of the present invention, the mixing of the entire space can be promoted by the swirl-induced flow. Therefore, compared with Comparative Example 2 in which warm air is supplied from a high position by blowing nozzles, the foot temperature and the residential area near 1 m above the floor are used. Is about 2 ° C higher. In addition, compared with Comparative Example 1 in which warm air was supplied from the living area without giving a swirling flow, the embodiment of the present invention was able to raise the temperature at the foot by about 2 ° C, and the amount of blow-out attraction was increased by the swirling flow. The effect made can be confirmed.

  FIG. 14 is a graph comparing the concentration distribution in the case where the tracer gas is released from the position 1 m above the floor of the point B in the example of the present invention (left figure) and the comparative example 2 (right figure). The tracer gas concentration was averaged over one hour and divided by the exhaust port concentration to make it dimensionless. In Comparative Example 2 in which the outside air heated to 30 ° C. is supplied by the nozzle, it is difficult to mix the air in the living area, so the concentration at the position 1 m above the floor at point C is about 7 times the exhaust port concentration. On the other hand, in the Example of this invention, the density | concentration comparable as an exhaust port density | concentration was shown in the whole space, and it has confirmed that it did not become high concentration in a residential area.

  Next, in each of the north factory space having a width of 40 m, a length of 50 m, and a ceiling height of 8.5 m, and the south factory space having a width of 40 m, a length of 50 m, and a ceiling height as shown in FIG. Comparison was made between the thermal environment when the heating operation according to the embodiment of the invention was performed and when the air jet nozzle was blown from the air jet nozzle intended to blow down the warm air in the ceiling in addition to the heating operation according to the embodiment of the present invention. . FIG. 15 shows the positions of the air supply units 20, the exhaust ports 16, and the air jet nozzles 60. The vertical temperature distribution when the outside air temperature was 4 ° C. was measured at point A in the north factory space and point B in the south factory space. As a result, it became as shown in FIG. Even at the point A in the north factory space and the point B in the south factory space, even if the blowout from the air jet nozzle is stopped, the temperature difference in the living area is within 1.5 ° C. It was confirmed that the living area could be kept at a good temperature.

  FIG. 17 is a graph comparing PMV at a height of 1.1 m above the floor when the air jet nozzle is operating and when it is stopped. When obtaining PMV, measurements were made at multiple points in each of the north factory space and the south factory space to detect thermal variations in the residential area. PMV was calculated with a clothing amount of 0.8 clo and a metabolic amount of 1.2 met. When the air jet nozzle was operated, the variation in the wind speed in the living area was increased due to the nozzle jet, so the variation in PMV in each space increased. In addition, when the air jet nozzle is operated, draft discomfort occurs, so the overall value is from “None” to “Slightly cool”. On the other hand, in the embodiment of the present invention, it can be seen that the draft discomfort is small and the comfort during heating can be improved.

  The present invention can be applied to other buildings such as halls and facilities in addition to business buildings such as office buildings and commercial buildings.

It is a schematic structure figure for explaining the heating air-conditioning system concerning an embodiment of the invention. It is a front view of an air supply unit. FIG. 3 is an enlarged view of a ZZ cross section in FIG. 2. It is a perspective view of the air supply opening which attached the guide fin so that the turning component of a counterclockwise rotation direction might be given to low temperature air seeing from the indoor side of an air-conditioned space. It is a perspective view of the air supply opening which attached the guide fin so that the turning component of a clockwise rotation direction might be given to low temperature air seeing from the indoor side of an air-conditioned space. It is explanatory drawing of the air supply port which made the swirl component of the low temperature air blown off from an adjacent air supply port alternately the reverse rotation direction. It is explanatory drawing of the air supply port which made the rotation component of the low temperature air blown off from an adjacent air supply port the same rotation direction. The swirl components of the low-temperature air blown out from the adjacent air supply ports are in the relationship of opposite rotation directions between the air supply ports arranged vertically and the air supply ports arranged horizontally. It is explanatory drawing of the air supply opening set to. It is explanatory drawing of embodiment of this invention which has arrange | positioned the perforated plate in which many ventilation holes were formed ahead of the front surface of the air supply unit in parallel with the front surface. It is a perspective view of a guide fin formed by punching a circular flat plate. It is a graph which shows the control state of the supply air temperature and the room temperature when not restrict | limiting when the temperature range of high temperature air is controlled in a fixed range. It is a top view of the air-conditioning space concerning the Example of this invention and Comparative Examples 1 and 2, and has shown arrangement | positioning of each apparatus. It is a graph which shows the temperature distribution of the upper and lower sides in the air-conditioned space which compared the Example of this invention and Comparative Examples 1 and 2. FIG. It is the graph (left figure) of the Example of this invention which shows concentration distribution in an air-conditioned space, and the graph (right figure) of the comparative example 2. FIG. FIG. 4 is a plan view of a north factory space and a south factory space in which heating operation according to an embodiment of the present invention and heating operation according to an embodiment of the present invention are performed in addition to blowing down warm air from a ceiling, The arrangement is shown. It is a graph which shows the up-and-down temperature distribution of north side factory space and south side factory space. It is the graph which compared PMV at the time of an air jet nozzle operation and a stop.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heating air-conditioning system 10 Air-conditioned space 11 Living area 12 Human 15 Air supply port 16 Exhaust port 20 Air supply unit 22 Air conditioner 23 Air supply duct 25 Heater 27 Air supply fan 30 Guide fin 32 Cylinder 40 Exhaust fan 41 Exhaust duct SA High temperature Air EA exhaust

Claims (5)

A heating and air conditioning method for heating by supplying high-temperature air into an air-conditioned space,
High-temperature air is air that is hotter than the air that accumulates in the residential area formed below in the air-conditioned space.
A plurality of air inlets are arranged vertically in the lower part of one side of the air-conditioned space, and high-temperature air that gives a swirl component to the living area formed below the air-conditioned space from the air inlets On the other hand, the same amount of high-temperature air supplied into the air-conditioned space is exhausted from the air-conditioned space ,
A heating and air-conditioning method, wherein a temperature sensor is installed in a living area, and a heating temperature of a heater for heating high-temperature air is controlled based on a room temperature detected by the temperature sensor . A heating and air conditioning system for heating by supplying high-temperature air into an air-conditioned space,
Hot air is air that is hotter than the air that accumulates in the residential area formed below in the air-conditioned space.
It has an air supply port that supplies high-temperature air into the air-conditioned space, and an exhaust port that exhausts indoor air from the air-conditioned space.
A plurality of air inlets are arranged vertically in the lower part of one side of the air-conditioned space, and hot air is supplied from the plurality of air inlets toward a residential area below the air-conditioned space,
The plurality of air supply ports are provided with guide means for giving a swirl component to the high-temperature air supplied into the air-conditioned space ,
A heating and air-conditioning system , wherein a temperature sensor is installed in a living area, and a heating temperature of a heater for heating high-temperature air is controlled based on a room temperature detected by the temperature sensor .   The guide means includes a plurality of guide fins arranged radially around the central axis of the air supply port, and the plurality of guide fins are at the same angle with respect to a plane perpendicular to the central axis of the air supply port. The heating air-conditioning system according to claim 2, wherein the heating air-conditioning system is provided with an inclination.   The guide means includes a cylindrical inner wall surface that surrounds a plurality of guide fins arranged radially around the central axis of the air supply port and that has a central axis about the central axis of the air supply port. The heating air-conditioning system according to claim 3, comprising:   The heating air-conditioning system according to claim 2, 3 or 4, further comprising a return duct for supplying air exhausted from the exhaust port into the air-conditioned space again from the air supply port.

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