JP2011021808A - Air type radiation laminar flow unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an air type radiation laminar flow unit capable of efficiently performing air-conditioning favorably. <P>SOLUTION: The air type radiation laminar flow unit includes: an air sending member 11 for sending conditioned air from an air conditioner; and an inducing mixing radiation case 16 which induces and mixes air in an air-conditioned space S by blowing the conditioned air from the air sending member 11 into an induction port 10 on the upper face and emits the air from a large number of opening holes 9 on the lower face toward the air-conditioned space S. A heat storage radiation flow divider 2 for dividing the induced mixed air to form a laminar flow and guiding the induced mixed air to the air-conditioned space S via the opening holes 9 and for storing the heat of the induced mixed air for thermal conduction to the inducing mixing radiation case 16 and emitting the heat to the air conditioned space S and to the air-conditioned space S via the opening holes 9 is provided in the inducing mixing radiation case 16. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a pneumatic radiant laminar flow unit.

  There is a radiation panel that embeds a large number of pipes through which a heat medium such as cold / hot water flows into the panel and air-conditions the room by heat radiation.

JP 7-19533 A

  This radiant panel has low air conditioning efficiency due to only heat transfer due to heat radiation, and there are many unsuitable spaces for air conditioning, such as places with poor heat insulation, places with large heat loads, and places with large amounts of air coming in and out. There is a problem that it is necessary and expensive. In addition, indoor air conditioners such as a multi-air conditioner and a fan coil unit have a problem that the temperature of cold air or warm air is high and gives a draft feeling, resulting in temperature unevenness.

  In order to solve the above-mentioned problems, the present invention is embedded in the ceiling and sends out conditioned air supplied from the air conditioner, and is exposed in the air-conditioned space and is buried in the ceiling and is also supplied in the ceiling. An induction mixing radiation case for attracting and mixing the air in the air-conditioned space by blowing the conditioned air of the air member into the induction port on the upper surface and releasing the air downward from the numerous openings on the lower surface toward the air-conditioned space; The induced mixed radiant case is divided into a laminar flow by guiding the mixed air into a laminar flow and guided to the air-conditioned space through the opening, and the heat of the induced mixed air is The most important feature is that a heat storage radiation shunt is provided that stores heat and conducts heat to the induced mixed radiation case to radiate heat to the air-conditioned space and radiates heat to the air-conditioned space through the opening. To do.

According to the invention of claim 1,
(1) Although the conventional radiation panel only emits heat from the panel surface, in the present invention, in addition to the heat radiation from the induced mixed radiation case, heat is also transmitted from the heat storage radiation shunt to the air-conditioned space through the opening. Since it radiates, radiation (radiation) energy can be made to reach a long distance at a high ratio. This long-distance radiation action and the wide-range and wide-range heat transfer action that occurs by reducing the temperature difference from the air-conditioned space and releasing it in a laminar flow so that the induced mixed air does not stay near the ceiling, and the air-conditioned Due to the synergistic effect of the circulator action caused by the attraction of space air, the air temperature distribution of the air-conditioned space is made uniform, and high-efficiency and high-performance comfortable air-conditioning without drafts and temperature unevenness can be performed. Therefore, there are few spaces unsuitable for air-conditioning compared with air-conditioning only with heat radiation, and the use range is wide.
(2) The conventional radiant panel uses heat source water for heat radiation, but in the present invention, conditioned air is used as the radiant heat source, so there is no worry of a water leak accident, the equipment can be simplified, and there is no blast power. The circulator effect can be obtained and the operating cost can be reduced.
(3) Since the conditioned air and air in the air-conditioned space are mixed, dew point control is possible, drain treatment equipment for countermeasures against condensation is not required, and costs can be reduced. Cooling capacity or heating capacity per conditioned air volume By reducing the air supply air volume by lowering the air supply temperature (lowering or highering the supply air temperature than usual), the cost can be reduced by reducing the blast power and downsizing the equipment such as ducts.

According to the invention of claim 2,
(1) The heat of the induction mixed air is efficiently and reliably transferred to the entire area of the heat storage and radiation shunt by the heat transfer plate to store the heat, and the heat can be evenly conducted to the induction and mixture radiation case. Can be done.
(2) The induced mixed air can be discharged in a laminar flow by the heat transfer plate, and the air-conditioning air temperature distribution can be equalized.

  According to the invention of claim 3, the elliptical straight pipe can prevent and reinforce the deformation of the heat storage radiation shunt, such as warping and bending, and is highly safe, and can smoothly discharge the induced mixed air with low pressure loss. It is possible to reduce the air blowing power of the air conditioner.

According to the invention of claim 4,
(1) Since the induced mixed air is sent down along the center line of the attracted mixed radiation case and discharged to the air-conditioned space through the heat storage radiation diverter, the induced mixed air is reliably distributed throughout the heat storage radiation diverter without uneven distribution or bypass. Therefore, it can be made to flow in a laminar flow and be uniformly conducted across the entire area of the induction and mixing radiation case, and the effective air conditioning range per unit is wide and the air conditioning efficiency can be improved.
(2) Since the top and bottom are flat, the radiation laminar flow unit can be easily installed in a narrow ceiling.
(3) A single air outlet for the air supply member is sufficient, the structure can be simplified, and manufacture is easy.

According to the invention of claim 5,
(1) Since the inner space of the air supply member is reduced in diameter from the windward side in the long side direction of the air outlet toward the leeward side, the air volume and the wind speed can be made uniform throughout the long side direction of the air outlet, resulting in variations. Does not occur. Therefore, there is no attraction unevenness, the circulator effect is high, the attraction air can be mixed evenly, there is no temperature unevenness of the air discharged from the attraction mixing radiation case, and stable comfortable air conditioning can be performed.

According to the invention of claim 6,
(1) The airflow direction and distribution can be made uniform by adjusting the wind direction of the induced mixed air by the rectifying mechanism, and the air conditioning efficiency can be improved.

According to the invention of claim 7,
(1) The blown air speed and / or the induced air speed can be arbitrarily changed, and the induced air mixing ratio optimum for air conditioning can be selected, thereby further improving the air conditioning efficiency.

According to the invention of claim 8,
(1) Since the heat distribution across the heat storage radiation shunt can be made more uniform by the heat storage body, the temperature distribution in the air-conditioned space becomes better and more stable and comfortable air conditioning can be performed.

According to the invention of claim 9,
(1) There is no need to provide separate lighting fixtures, the ceiling surface can be used widely, the degree of design freedom is increased, the number of equipment is reduced, construction is simplified, and equipment costs can be reduced.
(2) When the cooling capacity per volume of conditioned air is increased (the supply air temperature is lower than usual), dew condensation can be reliably prevented by using the heat generated by the luminaire for reheating the conditioned air, The cost can be further reduced by further reducing the air supply volume. Moreover, at the time of heating, the capacity of the air conditioner can be reduced and the heating capacity can be increased by using the heat generated by the lighting fixture for preheating the conditioned air.

According to the invention of claim 10,
(1) Since the protrusion of the heat transfer plate is located above the opening of the attracting and mixing radiation case so as to block the opening, the flow of the induced mixed air in the laterally long direction of the heat transfer plate is By being promoted, it is possible to reliably prevent bypassing (passing through) the opening, and to uniformly transfer the heat of the induced mixed air to the entire area of the heat storage and radiation shunt.
(2) Since the heat radiation from the heat transfer plate to the air-conditioned space is also performed obliquely downward through the opening of the attracting mixed radiation case by the protrusions, the radiation (radiation) energy should reach a wide range. Therefore, the air temperature distribution in the air-conditioned space is made more uniform, and comfortable air conditioning without temperature unevenness can be performed.

  FIGS. 1-8 has shown one Example of the pneumatic radiant laminar flow unit of this invention, and this pneumatic radiant laminar flow unit is embed | buried in the ceiling C, and is supplied with the air from an air conditioner. The air supply member 11 that sends out air and the air in the air-conditioned space S are exposed to the air-conditioned space S and embedded in the ceiling C, and the conditioned air of the air supply member 11 is blown into the induction port 10 on the upper surface. Induced and mixed radiation case 16 that attracts and mixes and releases downward from a large number of apertures 9 on the lower surface toward the air-conditioned space S, a box-shaped rectangular hood 13 that opens downward and flat, and maintenance And an inspection panel 17. Although not shown, the conditioned air is supplied from the air conditioner through an air duct such as a duct.

  In the inside of the induction mixing radiation case 16, the induction mixing air is split side by side to be laminar and guided to the air-conditioned space S through the aperture 9, and the heat of the induction mixing air is stored to induce mixing. There is provided a heat storage radiation shunt 2 that conducts heat to the radiation case 16 to radiate heat to the air-conditioned space S and to radiate heat to the air-conditioned space S through the opening 9. The heat storage radiation shunt 2 is in a rectangular shape that is flat vertically, and is brought into contact with at least the bottom surface of the attracting and mixing radiation case 16 so as to be capable of conducting heat.

  The heat storage radiation shunt 2 is made of a material such as aluminum, which is free to store heat and has high heat conduction and heat emissivity, and is provided with a plurality of horizontally long strips of heat transfer plates 8 facing each other at a predetermined pitch and inductively mixed air. Is divided and passes through the gap between the heat transfer plates 8 and 8 in a laminar flow from top to bottom while transferring heat. A plurality of elliptical straight pipes 99 are inserted into each heat transfer plate 8 at intervals from the normal direction so that the elliptical long axis of the elliptical straight pipes 99 is directed in the vertical (gravity) direction. .

  The induced mixed air becomes a laminar flow while passing through the gap between the heat transfer plates 8 and 8 by reducing the wind speed while being shunt-diffused by the member resistance of the heat storage and radiation shunt 2 and the induced mixed radiation case 16, and the heat of the induced mixed air Is uniformly transferred to the entire area of the heat storage radiation shunt 2. The opening 9 is formed at a distance from the substantially entire lower surface of the attracting and mixing radiation case 16. In the illustrated example, the opening 9 has a long hole shape, but it may be round or other shapes, and the position may be changed freely. In order to maximize the heat radiation effect of the heat storage radiation shunt 2 and the induced mixed radiation case 16 to the air-conditioned space S and the heat transfer effect by the induced mixed air discharge, an opening portion for the entire lower surface of the induced mixed radiation case 16 The total area ratio of the entire 9 is preferably set to 30% or more, but can be changed freely.

  Further, in order to optimally function the split-diffusion action, laminar flow passage action and heat transfer action of the induced mixed air, the wind speed on the air outlet side is less than half, preferably 20% with respect to the air inlet side of the heat storage radiation shunt 2. The shape, number, pitch, and the like of the heat transfer plate 8 and the apertures 9 are set and configured to be reduced to ˜30% or less. Further, as shown in FIG. 6, a plurality of straight pipes 99 are inserted into each heat transfer plate 8 to both ends thereof at a predetermined pitch, and the heat of the induced mixed air is straightened into each straight pipe 99. A heat storage body T that stores heat via 99 may be provided. The heat storage body T may be any material that can store heat and can conduct heat, and either solid or fluid can be used. In the case of fluid, the heat storage body T is enclosed in the straight pipe 99. In the illustrated example, the straight pipe 99 is oval, but it may be a perfect circle, or in the embodiment of FIG. 5, the hole in the portion where the straight pipe 99 of the heat transfer plate 8 is not inserted may be omitted. Well, the shape, structure, etc. of the heat storage radiation shunt 2 can be changed freely.

  The hood 13 is embedded in the ceiling C with its lower opening 14 exposed to the air-conditioned space S. In the hood 13, a rectangular-shaped attracting and mixing radiation case 16 that is flattened up and down is used for an attraction air path between at least two opposing side surfaces of the peripheral side surface to the entire upper surface and the inner surface of the hood 13. The spacing portion 15 is provided and installed. The attracting and mixing radiation case 16 is configured to be openable / closable or detachable with respect to the hood 13. In the example of the drawing, the spacing portion 15 is provided so as to wrap around the upper surface from both sides in the long side (longitudinal) direction of the attracting mixed radiation case 16, but it also wraps around the top surface from both sides in the short side direction. (All circumferences) Changes are free, such as providing an interval portion on all sides.

  On the lower surface side of the hood 13, a maintenance inspection panel 17 adjacent to one end side of the attracting and mixing radiation case 16 is provided so as to be openable and detachable, and an inspection port 19 is provided on the upper surface side of the hood 13 to cover it. With lid, it can be opened and closed or removed. The air inlet 18 of the air supply member 11 is provided in the vicinity of the inspection port 19. Accordingly, maintenance can be easily performed from the panel 17 without removing the entire radiant laminar flow unit from the ceiling C or separately providing the inspection port 19 on the ceiling C, and the air inlet 18 of the air supply member 11 is provided with the inspection port. Since it is beside 19, it can construct and maintain the ventilation duct (illustration omitted) of conditioned air from the panel 17 and the inspection port 19, and workability | operativity becomes favorable. The panel 17 and the inspection port 19 may be omitted.

  A line-shaped induction port 10 for blowing conditioned air of the air supply member 11 is formed along the center line L between the two opposing side surfaces that form the interval portion 15 on the upper surface of the induction mixing radiation case 16, A line-shaped air outlet 12 that blows out conditioned air along the induction port 10 is formed in the longitudinal direction of the air supply member 11. The inner space of the air supply member 11 is provided with a rectifying mechanism G that reduces the diameter from the windward side in the long side direction of the air outlet 12 toward the leeward side and adjusts the air direction in the air supply member 11. In the illustrated example, the inside of the air supply member 11 is partitioned by the inclined plate 11a to reduce the inner space, but the diameter of the air supply member 11 itself may be reduced or may be reduced by other methods. Further, a partition plate 7 a that guides conditioned air in the longitudinal direction of the air supply member 11 is provided directly below the air inlet 18. The partition plate 7a is narrower than the inner width of the air supply member 11 so that a part of the conditioned air flows from both sides to the bottom. Note that the partition plate 7a may be omitted by configuring the air outlet 12 not to be positioned below the air inlet 18, and the air supply member 11 is formed in a funnel-shaped cross section with the upper portion narrowed and the lower portion narrowed. However, changes in shape, structure, etc. are free.

  The rectifying mechanism G is formed by providing a plurality of small wall strips 7 extending in a direction intersecting with the airflow direction of the conditioned air at intervals. When there is no rectifying mechanism G, conditioned air flows obliquely downward, but the wind direction can be adjusted directly below by the resistance of the rectifying mechanism G. The width and height of the small wall strip 7 can be freely changed. However, if the small wall strip 7 is too low, the direction of the wind cannot be adjusted. If it is too high, the conditioned air is small as indicated by the thick dotted arrow in FIG. A portion where there is no air flow is intermittently generated in the space between the dotted thick arrow and the solid thick arrow without being able to reach the lee of the wall strip 7. In order to prevent this air flow interruption and to eliminate temperature unevenness, the height of the small wall strip portion 7 is set to 10 to 30% of the maximum cross-sectional area of the internal space of the air supply member 11 viewed from the direction of FIG. It is preferable to set.

  As shown in FIG. 7, the blow width adjusting mechanism A capable of changing the blown air speed by adjusting the gap width HA on the short side of the line-shaped air outlet 12, and the short-side side of the line-shaped induction port 10. An induction width adjusting mechanism B is provided that can adjust the induction wind speed by adjusting the gap width HB. The blowout width adjusting mechanism A includes a blower outlet width adjusting member 3 that increases or decreases the gap width HA on the short side of the blower outlet 12, and fixing means 4 that attaches the blower outlet width adjusting member 3 detachably or slidably. The attracting width adjusting mechanism B includes an attracting port width adjusting member 5 that increases or decreases the gap width HB on the short side of the attracting port 10 and a fixing unit 6 that attaches the attracting port width adjusting member 5 detachably or slidably. The fixing means 4 and 6 are formed of a known screwed member such as a screw indicated by a dashed line. In the illustrated example, the blower outlet width adjusting member 3 and the attraction opening width adjusting member 5 are configured using a pair of bent pieces, but the shape, structure, and the like can be freely changed. As an example of the induced air mixing ratio optimum for air conditioning, the conditioned air blowing air volume: the induced air volume is about 6: 4, but the setting change is free. It should be noted that one or both of the blowout width adjusting mechanism A and the attraction width adjusting mechanism B may be omitted.

  As shown in FIG. 5, when the conditioned air is blown out from the air feeding member 11 and enters the induction mixing radiation case 16 as indicated by a solid thick arrow, the gap between the air outlet 12 and the air inlet 10 becomes negative pressure. Then, the air in the air-conditioned space S is attracted through the spacing portion 15 as indicated by a short dotted thick arrow, and is shunted and diffused while being mixed in the induced mixing radiation case 16 as indicated by a long thick dotted arrow. It is discharged into the space S in a laminar flow. By repeating these steps, air is circulated and stirred between the air-conditioned space S and the radiant laminar flow unit. During cooling, air conditioning is performed using induced mixed air having a temperature lower than that of the air-conditioned space S and cold radiation, and during heating, air conditioning is performed using induced mixed air having a temperature higher than that of the air-conditioned space S and thermal radiation. The conditioned air is set so that the absolute humidity becomes lower than the dew point temperature of the air-conditioned space S when it is attracted and mixed, for example, in order to prevent condensation and to improve air conditioning efficiency.

  FIG. 9 shows an example in which a lighting fixture R for an air-conditioned space is provided in the space portion 15 between the hood 13 and the attracting mixed radiation case 16 so that the attracted air from the air-conditioned space S can pass through in the embodiment. It is. The luminaire R includes a set of devices for generating light that illuminates the air-conditioned space S. The luminaire R is provided in the space 15 near the lower opening 14 of the hood 13, but the position and number can be changed freely. is there. Further, in the illustrated example, a fluorescent lamp is illustrated as the lighting fixture R, but it can be freely changed to various types such as an incandescent lamp and an LED. In this case, the induction air from the air-conditioned space S is heated by the heat generated from the luminaire R and mixed with the conditioned air in the spacing portion 15 to obtain a reheating effect during cooling and a preheating effect during heating. can get.

  FIG. 10 and FIG. 11 show the adjacent heat transfer plates that protrude in the normal direction (direction perpendicular to the plane of the heat transfer plate 8) to the heat transfer plates 8 of the heat storage radiation shunt 2 in the respective embodiments. 8 is formed with a short cylindrical protrusion 98 in contact with or close to 8 at a predetermined pitch in the horizontal direction, and a predetermined or all apertures 9 of the attracting and mixing radiation case 16 are disposed below the protrusion 98. It is. When the heat transfer plates 8 are provided to face each other at a predetermined pitch, the central axis of the protrusion 98 overlaps with the central axis of the protrusion 98 of the adjacent heat transfer plate 8 as shown in the figure, and the protrusion 98 ... are arranged in a straight line. In the example shown in the figure, the protrusion 98 is elliptical, but it can be freely changed such as round or polygonal. In this case, thermal radiation is radiated downward from the aperture 9, and thermal radiation that travels away from the projection 98 as shown by the dotted thick arrow in FIG. 11 is also radiated diagonally downward from the aperture 9. The Furthermore, heat radiation is performed radially from the outer peripheral wall of the protrusion 98 and is radiated downward or obliquely downward from the aperture 9. At the same time, the protrusion 98 also exhibits the effect of promoting the diversion of the attracted mixed air.

It is the perspective view seen from the bottom face side of a pneumatic radiation laminar flow unit. It is a top view of a pneumatic radiation laminar flow unit. It is the top view which fractured | ruptured a part of upper surface of the induction mixing radiation case. It is side surface sectional drawing of an air supply member and an attraction | suction mixing radiation case. FIG. 3 is an overall cross-sectional view seen from the direction E in FIG. 2. It is principal part sectional drawing which shows the modification of a thermal storage radiation shunt. It is principal part sectional drawing of an air supply member and the attraction | suction mixing radiation case seen from the F direction of FIG. It is the perspective view which fractured | ruptured a part of upper surface of an air supply member. It is sectional drawing of the whole of another Example. It is a principal part plane sectional drawing of the heat storage radiation shunt of another Example. It is principal part sectional drawing of the induction mixing radiation case and heat storage radiation shunt of another Example seen from the J direction of FIG.

2 Heat Storage Radiation Divider 7 Small Wall Strip 8 Heat Transfer Plate 9 Opening Portion 10 Induction Port 11 Air Supply Member 12 Blowout Port 13 Hood 14 Lower Opening Portion 15 Spacing Portion 16 Induction Mixed Radiation Case 98 Protruding Portion 99 Straight Pipe A Outlet Width adjustment mechanism B Attraction width adjustment mechanism HA gap width HB gap width C ceiling L center line G rectifying mechanism S air-conditioned space T heat storage R lighting fixture

Claims (10)

  The air supply member (11) that is embedded in the ceiling (C) and sends out conditioned air supplied from the air conditioner, and is exposed in the air-conditioned space (S) and embedded in the ceiling (C). The conditioned air of the air supply member (11) is blown into the induction port (10) on the upper surface, so that the air in the air-conditioned space (S) is attracted and mixed, and the air is supplied from the numerous openings (9) on the lower surface. An inductive mixed radiation case (16) that discharges downward toward the air-conditioned space (S), and the inductive mixed radiation case (16) is divided into a laminar flow by dividing it side by side. To the air-conditioned space (S) through the opening (9) and store the heat of the attracted mixed air to conduct heat to the attracted mixed radiation case (16). S) radiate heat to the air-conditioned air through the opening (9) Heat storage radiation diverter to thermal radiation to (S) and (2), pneumatic radiation laminar flow unit, characterized by comprising.   The heat storage radiation diverter (2) is provided side by side with a plurality of horizontally long heat transfer plates (8) facing each other at a predetermined pitch, and the induced mixed air is diverted so that the heat transfer plates (8), (8 The pneumatic radiant laminar flow unit according to claim 1, wherein the air radiant laminar flow unit is configured to pass in a laminar flow from the top to the bottom while transferring heat through the gap.   A plurality of elliptical straight pipes (99) are inserted into the heat transfer plates (8) of the heat storage radiation shunt (2) so that the elliptical long axis of the elliptical straight pipe (99) is directed vertically. The pneumatic radiant laminar flow unit according to claim 2.   A box-shaped hood (13) having an open bottom and a flat top and bottom is embedded in the ceiling (C) with its lower opening (14) exposed to the air-conditioned space (S), and the hood (13). An induction mixing radiation case (16) that is flat in the upper and lower sides of the inner side of the hood (13) is provided between the inner surface of the hood (13) and the range of the entire upper surface from at least two opposing side surfaces. An interval portion (15) is provided, installed, and sent along the center line (L) between the opposite two side surfaces that form the interval portion (15) on the upper surface of the attracting mixed radiation case (16). A line-shaped induction port (10) into which the conditioned air of the air member (11) is blown is formed, and the air-conditioning member (11) is formed in a line shape that blows out the conditioned air along the induction port (10). The pneumatic radiation according to claim 1, 2 or 3, wherein the air outlet (12) is formed. Flow unit.   A line-shaped air outlet (12) is formed in the longitudinal direction of the horizontally long cylindrical air supply member (11), and the internal space of the air supply member (11) extends in the long side direction of the air outlet (12). The pneumatic radiant laminar flow unit according to claim 4, wherein the diameter is reduced from the windward side toward the leeward side.   The pneumatic radiant laminar flow unit according to claim 4 or 5, wherein the air supply member (11) is provided with a rectifying mechanism (G) for adjusting a wind direction.   Adjusting the gap width (HA) on the short side of the line-shaped air outlet (12) to change the blowout air speed, and / or the length of the line-shaped induction port (10). The pneumatic radiant laminar flow unit according to claim 4, 5 or 6, further comprising an attractive width adjusting mechanism (B) capable of adjusting an attractive wind speed by adjusting a gap width (HB) on the side.   The pneumatic radiant laminar flow unit according to claim 3, 4, 5, 6, or 7, wherein a heat storage body (T) for storing heat of the induced mixed air is provided inside the elliptical straight pipe (99).   The pneumatic radiation layer according to claim 4, 5, 6, 7 or 8, wherein a lighting device (R) for an air-conditioned space is provided in a space (15) between the hood (13) and the induction mixed radiation case (16). Flow unit.   A short cylindrical protrusion (98) that protrudes in the normal direction and contacts or is adjacent to the adjacent heat transfer plate (8) is provided on each heat transfer plate (8) of the heat storage radiation shunt (2). 2, 3, 4, 5, 6, 7, wherein an opening (9) of the attracting and mixing radiation case (16) is disposed below the protrusion (98). The pneumatic radiant laminar flow unit according to 8 or 9.

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