JP6502696B2 - Air conditioning system for living room using air supply box and air supply box - Google Patents

Description

The present invention relates to an air supply box for use in an air conditioning system in a small-to-medium-sized air conditioning space for offices, hospitals, research laboratories (hereinafter referred to as office buildings, etc.), and an air conditioning system for office buildings using such air supply box. About.
More specifically, the present invention relates to an air supply box having a function of mixing conditioned air and outside air and supplying the air into a room.

In recent years, compressors, condensing coils, expansion valves, and evaporation coils, which constitute a refrigeration cycle, are particularly suitable for air conditioning systems in small and medium-sized air conditioning spaces such as office buildings, hospitals and research institutes, which are suitable for individual air conditioning in each room. A packaged air conditioner (PAC) is adopted, which includes an outdoor unit and an indoor unit in which coils are divided to enable individual control. In particular, a ceiling that conceals an indoor unit (hereinafter referred to as a packaged air conditioner) incorporating a condenser / evaporation coil dual coil and a blower from the merit of improving the rentable ratio, space saving, etc. in the ceiling of a living room or the like A concealed package type air conditioner is often employed.
In the air conditioning system employing the packaged air conditioner, the packaged air conditioner is disposed in the ceiling, and the packaged air conditioner is provided on the ceiling via an air supply duct disposed in the ceiling. An external air conditioner that is connected to the air outlet, for example, returns air in the room from the return air port provided on the ceiling by the suction force of its own blower, adjusts the outside air temperature, and introduces it to each room. In combination with the outside air duct to transport the The external air conditioner has the same amount of exhaust air exhausted from part of the circulating air of the room's return air and blowoff air, in order to manage carbon dioxide such as exhaled breath of the resident in the living room and maintain the indoor environment. For a minute, introduce fresh air into the room.
In this case, if the outside air supplied from the outside air conditioner is directly introduced into the room regardless of the circulating air of the packaged air conditioner, the air flow that gives the occupants a sense of discomfort, especially in summer and winter, so-called draft Cause condensation, or cause condensation.
A draft is a local cold felt by the occupant due to deterioration of the distribution of air temperature and air flow due to air currents having different temperatures when there is no change in the temperature of the indoor environment or the state of heat radiation from the window. It is a feeling or a feeling of warmth, and is a phenomenon accompanied by a sense of discomfort that is generated by directly blowing in air having a temperature remote from the temperature of the indoor environment.
Therefore, in order to prevent such a phenomenon, for example, outside air supplied from an external air conditioner is mixed by various methods with an air supply duct that conveys conditioned air supplied from a packaged air conditioner, and the room is Supply.

In addition, the wind pressure, which is the dynamic pressure at the blower outlet of the packaged air conditioner 13, is temporarily received in the space, the dynamic pressure is converted to a static pressure, and the directivity is dispersed and distributed again by the duct. From the viewpoint of space, as shown in FIG. 10, an air supply box 1 is provided to supply conditioned air b from a single package type air conditioner 13 to a plurality of locations in the room, and the air supply box 1 is provided. The conditioned air b is sent from the package type air conditioner 13 through the conditioned air inlet 3, and the outside air a is sent from the outside air conditioner through the outside machine duct 12, and the conditioned air b and the outside air a in the air supply box 1. And mixed and supplied to the room through the mixed air duct 14.
However, as shown in FIG. 10 (a), the outside air a supplied from the outside air duct 12 and the conditioned air b supplied from the package type air conditioner 13 are mixed in the air supply box 1, and the mixed air is mixed. Is supplied to the room from the air supply box 1 through the mixed air duct 14, the static pressure from the external air conditioner is larger than the static pressure of the air supply fan of the package type air conditioner 13. There is a problem that the blowing efficiency of the mixed air is poor because the outside air flows backward.
Further, as shown in FIG. 6B, when the package type air conditioner 13 is stopped, the outside air a is always supplied to the air supply box 1, so the outside air a flows back to the package type air conditioner 13. . When the backflow side of the package type air conditioner 13 is a ceiling chamber system when backflow occurs, dust and the like on the ceiling are blown through the return air port by blowing out from the return air intake port of the package type air conditioner 13 Problems such as blowing into the living room arise.
Therefore, as shown in FIG. 11, the ceiling concealment package type air conditioner 13 and the air supply box 1 are connected in the ceiling 11 of the living room, the air supply duct 30 is extended from the air supply box 1, and the external conditioner (shown in FIG. Outside air duct 12 connected to the middle part of the air supply duct 30 by means of a Y joint and supplied from an external conditioner (not shown) to conditioned air blown out from the package type air conditioner 13 The outside air is discharged and mixed at the Y joint 31 and sent to the mixed air duct 14 connected via the joint 32 to the air supply duct 30 and the air supply duct 30 through the joint 32, and the interior side of the living room (back side ) And the air outlet on the side of the perimeter (window side). The Y joint 31 mixes the outside air a substantially along the flow direction of the conditioned air b conveyed in the air supply duct 30, and works in a direction in which the dynamic pressure components of the outside air a and the conditioned air b assist each other. Therefore, it is difficult for backflow to occur.

However, in the method as described above, the number of the Y-joints in a special form, which is expensive to manufacture, is at least the same as the number of the packaged air conditioners 13. In this case, it is more expensive, and in recent years, the use of large diameter heat retaining flexible ducts and large diameter spiral round ducts is increasing in the air supply duct 30 for labor saving, and interruptions other than cheese are specially made and skilled in field construction There is a problem that this work is time-consuming and complicated.
Also, even if a Y-joint is used, if the static pressure from the external air conditioner is much larger than the static pressure of the packaged air conditioner, the directions of the dynamic pressure components do not completely coincide because of Y-shaped mixing, Part of the outside air can not be prevented from flowing back to the package type air conditioner side, and the blowing efficiency of the mixed air blown out from the air supply box is poor, and the amount of blowing is wasted. When the heat retaining flexible duct is used for the air supply duct, it is difficult to keep the internal air flow direction constant in the longitudinal direction due to a phenomenon such as a dripping phenomenon due to its own weight and the like, which further promotes the reverse flow.

The present invention aims to solve the above-mentioned problems, and discharges and mixes air conditioned by the air conditioner main body and fresh outside air at the outlet of the air supply box to prevent backflow of the outside air, Provided is an air supply box with an increased blowing rate of mixed air.
In addition, by reducing the number of joints between the air supply duct and the outside air duct and the joints between the air supply duct and the distribution duct, cost reduction and efficiency of installation work can be achieved, and mixed air discharged and mixed from the air supply box It is an object of the present invention to provide an air supply box capable of increasing the blowout rate of the air conditioner, and to provide an efficient air conditioning system such as an office building.

The present inventors solved the above-mentioned subject by the following means.
(1) An external air introduction port for introducing external air into a first case that constitutes a first case and a second case by constructing a first case and a second case by erecting a partition plate inside the case In the air supply box installed in the ceiling on the air supply side of the ceiling concealing air conditioner, provided and provided with an adjustment air introduction port for introducing adjustment air into the second housing that constitutes the adjustment air introduction space,
The surface extension direction of the partition plate is substantially parallel to the central axial direction of the outside air inlet and to the central axial direction of the adjustment air inlet,
A mixed air discharge port for discharging the outside air and the adjustment air formed by piercing the outside air introduction space and the adjustment air introduction space is provided in a housing wall in contact with the end of the partition plate ,
An air supply box characterized in that an adjustment air outlet is provided in a second case constituting the adjustment air introduction space of the air supply box.
(2) An outside air duct for conveying outside air temperature-controlled by an outside air conditioner, a packaged air conditioner which is a ceiling concealed air conditioner, and outside air introduced from the outside air duct above the ceiling of a living room such as an office building And an air supply box for introducing adjustment air from the package type air conditioner, a variable air volume unit provided in the middle of the outside air duct, and a mixture of the outside air and the adjustment air mixed in the air supply box. A mixed air duct connected to the mixed air discharge port for conveying air to the interior side (A) of the living room, and the adjustment to supply conditioned air from the air supply box to the perimeter side (B) of the living room A distribution duct connected to an air outlet, and a return air duct for returning air in the room to the packaged air conditioner, the ceiling facing the interior side (A) of the room The packaged air conditioning system includes an interior outlet for supplying mixed air, a perimeter outlet for supplying the conditioned air to the perimeter side (B) of the living room, and air including breath of a resident of the living room. An air conditioning system for a room such as an office building provided with a return air port connected to the return air duct returning to an aircraft, comprising:
An air conditioning system for an office building or the like, wherein the air supply box is the air supply box according to (1) .

(3) An outside air duct for conveying outside air temperature-controlled by an outside air conditioner, a packaged air conditioner which is a ceiling concealed air conditioner, and the outside air duct introduced from the outside air duct above the ceiling of a living room such as an office building And an air supply box for introducing adjustment air from the package type air conditioner, a variable air volume unit provided in the middle of the outside air duct, and a mixture of the outside air and the adjustment air mixed in the air supply box. A mixed air duct connected to the mixed air discharge port for conveying air to the interior side (A) of the living room, and the adjustment to supply conditioned air from the air supply box to the perimeter side (B) of the living room A distribution duct connected to an air outlet, and a ceiling chamber for returning air in the room to the packaged air conditioner, the ceiling being an interior side (A) of the room And interior air outlet to supply the mixed air,
Permeate outlet for supplying the conditioned air to the perimeter side (B) in the living room, and air including the breath of the resident in the living room are returned to the packaged air conditioner via the ceiling chamber. An air conditioning system for a room in an office building or the like equipped with a vent,
An air conditioning system for an office building or the like, wherein the air supply box is the air supply box according to (1) .
(4) An outside air duct for conveying outside air temperature-controlled by an outside air conditioner, a packaged air conditioner which is a ceiling concealed air conditioner, and outside air introduced from the outside air duct above the ceiling of a living room such as an office building And the mixed air obtained by mixing the outside air and the adjusted air in the air supply box to the interior side (A) of the room. Adjusting the mixed air duct connected to the mixed air outlet, the variable volume unit respectively provided in the middle of the branched end of the mixed air duct, and adjusting from the air supply box to the perimeter side (B) of the living room A distribution duct connected to the conditioned air outlet for supplying air; and a return air duct for returning air in the room to the packaged air conditioner, and the ceiling includes an air conditioner in the room. An interior outlet for supplying the mixed air to the terrier side (A), a perimeter outlet for supplying the conditioned air to the perimeter side (B) in the room, and air including the exhalation of the resident in the room An air conditioning system for a living room such as an office building provided with a return air port connected to the return air duct returning the air to the package type air conditioner,
An air conditioning system for an office building or the like, wherein the air supply box is the air supply box according to (1) .

(5) An outside air duct for conveying outside air temperature-controlled by an outside air conditioner, a packaged air conditioner which is a ceiling concealed air conditioner, and outside air introduced from the outside air duct above the ceiling of a living room such as an office building And the mixed air obtained by mixing the outside air and the adjusted air in the air supply box to the interior side (A) of the room. A mixed air duct connected to the mixed air outlet, a distribution duct connected to the adjusted air outlet for supplying adjusted air from the air supply box to the perimeter side (B) of the room, and the mixture A variable air volume unit provided at a branched end of an air duct and in the middle of the distribution duct;
A ceiling chamber for returning air in the room to the packaged air conditioner; and an interior outlet for supplying the mixed air to the interior side (A) of the room, the ceiling comprising the ceiling chamber; Permeate outlet for supplying the conditioned air to the perimeter side (B) in the living room, and return air for returning air containing the breath of the resident in the living room to the packaged air conditioner via the ceiling chamber An air conditioning system for a living room such as an office building with a mouth,
An air conditioning system for an office building or the like, wherein the air supply box is the air supply box according to (1) .

The following effects are exhibited by the air supply box and the air conditioning system of the present invention.
Wherein (1) Symbol placement of according to the supply air box of the present invention, the outside air sent to the air supply box from outside conditioner through the outside air duct, conditioned air and is the air supply box sent from the package type air conditioner Since outside air and conditioned air are simultaneously blown out from the air outlet of the air supply box without being mixed inside, it becomes mixed air, so the outside air in the air supply box prevents backflow to the packaged air conditioner side. And the blowing efficiency of the mixed air is high.
According to the air conditioning system such as the office building of the present invention as described in (2), (3), (4) and (5) , in addition to the above effect, mixed air is supplied to the interior side and to the perimeter side. Since conditioned air can be supplied, dew condensation on the window surface or the like due to the wet mixed air can be prevented.

The figure which represents 1st Example of the air supply box of this invention The figure which represents 2nd Example of the air supply box of this invention The figure which represents the flow of the external air which flows through the inside of the air supply box of 1st Example of this invention, and adjustment air The figure which represents the flow of the external air which flows through the inside of the air supply box of 2nd Example of this invention, and adjustment air Diagram showing the use state of the air supply box of the present invention Diagram showing how to connect conventional air supply box and outside air duct A diagram showing a first embodiment of an air conditioning system such as an office building of the invention The figure showing the 2nd example of an air conditioning system, such as an office building of the present invention The figure showing the 3rd Example of air conditioning systems, such as an office building of the present invention A diagram representing the flow of ambient air and conditioned air flowing in a conventional air supply box Diagram of a conventional air conditioning system

FIG. 1 is a view showing a first embodiment of the air supply box according to the present invention, wherein (a) is a perspective view of the air supply box, and (b) is an I-I sectional view of the perspective view of the air supply box.
In these figures, 1 is a (solid rectangular) air supply box, 10 is an air supply box housing, 2 is an outside air inlet, 3 is an adjustment air inlet, 4 is an outside air and an outlet for adjustment air, and 5 is a partition plate , 6 is an open air introduction space, and 7 is a regulated air introduction space.
In the air supply box 1 according to the present invention, the partition plate 5 is installed inside the case 10 to form a first case and a second case, and the outside air introducing space 6 into which the outside air is introduced is An outside air introduction port 2 is provided in the first case to be configured, and the adjustment air introduction port 3 is provided in a second case constituting the adjustment air introduction space 7 into which the adjustment air is introduced.
The surface extension direction of the partition plate 5 is substantially parallel to the central axial direction of the outside air inlet 2 and to the central axial direction of the adjustment air inlet 3.
And, in the case wall which the end of the partition plate 5 abuts, the air outlet 4 for blowing the outside air and the adjustment air is bored across the outside air introduction space 6 and the adjustment air introduction space 7.
In the first embodiment, the outside air inlet 2 is provided on the upper side of the right side plate 10 a of the air supply box housing 10, and the adjustment air inlet 3 is on the lower side of the right side wall 10 a of the air supply box housing 10. It is provided. Further, the air outlet 4 of the outside air and the adjustment air is bored in the left side plate 10c of the air supply box housing 10 which is a housing wall against which the end of the partition plate 5 constructed in the air supply box housing 10 abuts. It is provided.
Further, the partition plate 5 divides the two spaces of the first case constituting the outside air introduction space 6 in the case 10 constituting the air supply box 1 and the second case constituting the adjustment air introduction space. It is built on
In the first embodiment, although the first case constituting the outside air introducing space 6 and the second case constituting the adjustment air introducing space are vertically disposed, the air supply box 1 is disposed. According to the situation of the place, it may be arranged on the left and right, and both the outside air inlet 2 and the adjustment air inlet 3 are formed in the right side plate 10a, but according to the design appropriately Can be formed.
Further, the outside air and the adjustment air outlet 4 are the outside air from the outside air introduction space 6 so as to straddle the outside air introduction space 6 and the adjustment air introduction space 7 on the casing wall in contact with the end of the partition plate 5; If it is the position which can blow out the adjustment air from the adjustment air introduction space 7, according to need, it can form in multiple numbers.
In addition, in the aspect of this embodiment, in order to achieve weight reduction, although the partition plate 5 is comprised with the flat heat insulation board of glass wool similarly to the air supply box 1, it is not limited to this.

FIG. 2 is a view showing a second embodiment of the air supply box according to the present invention, wherein (a) is a perspective view of the air supply box, and (b) is an I-I sectional view of the perspective view of the air supply box.
The air supply box 1 shown in the second embodiment is configured by providing the adjustment air discharge port 8 in the second case constituting the adjustment air introduction space 7 of the air supply box 1 shown in the first embodiment. ing.
The adjustment air outlet 8 is for blowing out only the adjustment air introduced from the adjustment air inlet 3 and may be formed at any position of the wall surface of the second case, the second embodiment. In the above, the adjustment air outlet 8 is provided in the bottom plate 10 e of the housing 10 that constitutes the adjustment air introduction space 7.

FIG. 3 is a view showing the flow of outside air and conditioned air flowing in the air supply box of the first embodiment of the present invention.
In the figure, reference numeral 12 denotes an outside air duct connected to the outside air inlet 2, and the other end is connected to an outside air conditioner (see FIG. 7). Reference numeral 13 denotes a package type air conditioner connected to the adjustment air inlet 3 via a short pipe duct (not shown).
In the figure, when the external air conditioner and the packaged air conditioner 13 are operated, the external air a introduced from the external air conditioner through the external air duct 12 into the external air introducing space 6 of the air supply box housing 10 is the external air introducing space. 6 and the conditioned air introduction space 7 are not mixed with the conditioned air b introduced into the conditioned air introduction space 7 from the package type air conditioner 13 by the partition plate 5 erected so as to divide the two spaces horizontally. Once the velocity component of its own, ie, the dynamic pressure, is converted into static pressure in the outside air introduction space 6 and spread, it flows to the outside air and adjustment air outlet 4 which is an opening that is converted into static pressure again. Then, without mixing with the outside air a introduced from the package type air conditioner 13 into the adjustment air introduction space 7 in the air supply box case 10 and mixing with the outside air a by the partition plate 5, the air velocity component, that is, the dynamic pressure is adjusted once Conditioned air b flowing to the outside air and adjustment air outlet 4 which is an opening where the static pressure is converted back into dynamic pressure after being converted to static pressure in the space 7 and the outside air and the outlet of the adjusted air The air is mixed at the position 4 and supplied from the mixed air duct 14 connected to the outside air and conditioned air outlet 4 to the air outlet 15 (see FIG. 5) disposed on the ceiling of the room.
As described above, the outside air a and the adjustment air b introduced from the outside air introduction port 2 and the adjustment air introduction port 3, respectively, once converted their own velocity component, that is, the dynamic pressure into static pressure and expanded in the adjustment air introduction space 7 Since static pressure is later converted to dynamic pressure, the outside air and conditioned air outlet 4 is converted from static pressure applied vertically to the respective surfaces of the housing from the centers of the ambient air introducing space 6 and the conditioned air introducing space 7. Since the air is blown out by the above-described dynamic pressure, the outside air a and the adjustment air b are blown out almost in parallel.

FIG. 4 is a diagram showing the flow of outside air and conditioned air flowing in the air supply box of the second embodiment of the present invention.
The description of the same parts as FIG. 3 will be omitted.
In the figure, reference numeral 16 denotes a distribution duct, one end of which is connected to the air conditioning outlet 8 provided on the bottom plate 10e of the casing 10 constituting the adjustment air introduction space 7 of the air supply box casing 10; It is connected to the distribution member 17 (see FIG. 5).
In the same figure, when the external air conditioner and the packaged air conditioner 13 are operated, the outside air a introduced into the outside air introducing space 6 of the air supplying box case 10 is introduced into the adjusted air introducing space 7 as in FIG. Flows to the outside air and the adjustment air outlet 4 without mixing with the adjustment air b, and the outside air a and the adjustment air b are mixed at the outside air and adjustment air outlet 4 and the outside air and the adjustment air The air is blown out from the air outlet 4 to the mixed air duct 14 and supplied to the respective air outlets 15.
On the other hand, adjustment air b 'of a part of the adjustment air b introduced from the package type air conditioner 13 into the adjustment air introduction space 7 of the air supply box case 10 is adjusted by the partition plate 5 without being mixed with the outside air a. It flows into the air outlet 8 and is supplied to the distribution duct 16 connected to the adjusted air outlet 8.

FIG. 5: is a figure showing the use condition of the air supply box 1 of this invention.
In the present embodiment, in order to supply mixed air of the outside air a and the adjustment air b in four directions from the air supply box housing 10, the outside air and the adjustment air outlet 4 of the air supply box housing 10 are provided. One front plate 10b, two left side plates 10c, one rear plate 10d, and one adjustment air outlet 8 in the bottom plate 10e.
As described above, the air supply box 1 of the present invention can be provided with outlets 4 for the outside air and the adjustment air according to the number of places where the outside air and the adjustment air are mixed and supplied from the air supply box 1. In the figure, 11 is a ceiling of a living room such as an office building, 12 is an outside air duct connected to an external air conditioner (see FIG. 7), 13 is a package type air conditioner and is provided in the air supply box case 10 It is connected to the adjusted air inlet 3.
In the state of use, the outside air duct 12 passes above the package type air conditioner 13 and is connected to the outside air introduction port 2 of the air supply box housing 10.
Reference numeral 14 denotes a mixed air duct, one end of which is connected to the outside air of the air supply box case 10 and the outlet 4 of the conditioned air, and the other end of which is provided on the ceiling 11a on the interior side A It is connected to the supplied air supply port (interior blowout port) 15.
Furthermore, 16 is a distribution duct, and one end is connected to the adjustment air outlet 8 of the air supply box 10, and the other end is connected to the adjustment air distribution member 17 provided on the ceiling 11b of the perimeter B (window side) of the living room It is done. Reference numeral 18 denotes a distribution branch duct, one end of which is connected to the distribution member 17 provided on the ceiling 11b on the perimeter side B, and the other end is connected to the line type diffuser 19 provided on the perimeter side B.
In this embodiment, since the outside air duct, the mixed air duct, and the adjusting air duct are constituted by the flexible duct with heat retention, connection and the like can be easily performed by using a steel nipple or cheese. It is not limited.

In the present embodiment, when the external air conditioner and the packaged air conditioner 13 are operated, as described above, the outside air a introduced into the outside air introducing space 6 of the air supplying box housing 10 and the adjusted air introducing space 7 are introduced. The conditioned air b does not mix in the air supply box case 10 by the partition plate 5 and flows to the outlet 4 of the outside air and adjustment air in four directions, respectively, and the outside air a and the adjustment air b are outside air And mixed air at the air outlet 4 of the conditioned air, supplied to the mixed air duct 14, and passed through the mixed air duct 14 from the air inlet 15 provided on the ceiling 11a of the interior side (opposite side of the room) Air is supplied into the room.
On the other hand, a part of the conditioned air b ′ of the conditioned air b introduced from the package type air conditioner 13 into the conditioned air introducing space 7 of the air supply box housing 10 is not mixed with the outside air a by the partition plate 5 It flows to the discharge port 8, passes through the distribution duct 16, the distribution member 17, and the distribution branch duct 18, and is supplied to the line type diffuser 19 on the perimeter side (window side of the room).

As described above, the air supply box 1 according to the present invention includes the outside air introduction space 6 for introducing the outside air and the adjustment air introduction for introducing the adjustment air through the inside of the air supply box housing 10 with the partition plate 5 installed therein. Since two spaces of the space 7 are divided, the same velocity dynamic pressure is directed toward the outside air and adjustment air outlet 4 without mixing the outside air a and the adjustment air b in the air supply box 1. It is blown out and mixed and blown out at the outlet 4 for the outside air and the conditioned air.
Further, even when the package type air conditioner 13 for supplying the conditioned air is stopped, the blowing direction of the outside air of the outside air a and the conditioned air at the outlet 4 is the attachment of the outlet 4 of the outside air and the regulated air. Since it is perpendicular to the side plate of the air supply box, the back air from the outside air a can be prevented from flowing back to the package type air conditioner 13 side, and the outside air can efficiently supply the outside air a to the living room from the outside air conditioner. It can be configured to
Furthermore, in the air supply box 1 according to the present invention, the adjustment air introduction space 7 divided by the partition plate 5 in the air supply box housing 10 is filled with only the adjustment air b, so Only the adjustment air is supplied to the window side, so that especially in the winter, the outside air supplied by being humidified from the external air conditioner becomes very wet and the dew condensation tends to occur on the window side, but the window side Since only the conditioned air b ′ not mixed with the outside air is supplied, condensation on the window surface and the like can be avoided.

FIG. 6 is a diagram showing a connection method of the conventional air supply box 1 and the outside air duct 12.
Specifically, the figure shows a method of connecting the package type air conditioner 13 to the conventional air supply box 1 without partitions and connecting the air supply box 1 and the outside air duct 12 connected to the external air conditioner. , (A), when the outside air duct 12 is connected to the air supply box 1 from the side in a T shape, (b), when the outside air duct 12 is Y connected to the air outlet duct of the air supply box 1 (C) is a case where the outside air duct 12 is connected to the duct on the air outlet side of the air supply box 1 in a T-shape.
In the above connection, the power supply of the package type air conditioner is turned off and stopped, the air volume of 100% 678 m ³ / h is sent by the fan of the external air conditioner, and the mixed air blown out from the air supply box 1 As a result of measuring the volume of air, in the case of (a), the ventilation efficiency of the mixed air blown out from the air supply box 1 is 30.1%, and in the case of (b), the ventilation efficiency of the mixed air blown out from the air supply box Was 87.7%, and in the case of (c), the ventilation efficiency of the mixed air blown out from the air supply box was 37.6%.
On the other hand, the ventilation efficiency of the mixed air which blows off from the air supply box at the time of using the air supply box of this invention is 97.5%, and high ventilation efficiency was able to be obtained.

FIG. 7 is a diagram showing a first embodiment of an air conditioning system such as an office building according to the invention.
The first embodiment is a single duct type air conditioning system consisting of a combination of an external air conditioner and a packaged air conditioner.
In the figure, 20 is a room such as an office building, and the room is divided into an interior side A and a perimeter side B. The interior side is not affected much by the window, but the density of the resident in the living room is high, the amount of carbon dioxide derived from exhalation is large, and the air containing a large amount of carbon dioxide such as solar radiation is not illustrated. An area exhausted by an exhaust fan and exhausted is an area required to be supplemented by the introduction of fresh outside air having a low carbon dioxide concentration.
On the other hand, since there is a window 21 on the perimeter side, the influence of the outside environment such as a change in solar radiation is directly affected, and the load fluctuation is extremely intense. Therefore, the air conditioning system differs between the interior side and the perimeter side. I have to.
An external air conditioner 22 supplies outside air to other room systems not shown, but is connected by an outside air duct 12 so as to supply a part of the outside air to the air supply box 1. A variable air volume unit 23 is provided in the middle of the branched outside air duct 12 and is controlled by the amount of carbon dioxide in the living room 20 to adjust the air volume of the outside air sent from the outside air conditioner 22 by the outside air duct 12 Supply to the air box 1.
The reference numeral 24 denotes a return air port provided in the ceiling 11, which is sent to the package type air conditioner 13 in order to return the air containing carbon dioxide in the living room 20 through the return air duct 35. Reference numeral 25 denotes an air outlet on the perimeter side (for example, a line type diffuser 19 may be used).

FIG. 8 is a diagram showing a second embodiment of an air conditioning system such as an office building according to the invention.
The configuration different from the air conditioning system of FIG. 7 is to adjust the variable air volume unit 23 not to the middle of the outside air duct 12 but to the mixed air duct 14 supplying the mixed air to the outlet 15 on the interior side of the room and the outlet 25 on the perimeter It is provided in the middle of the distribution duct 16 which supplies air. This is the case when energy saving operation is performed by dividing the area on the interior side into several areas with different time distributions such as residents. Further, as another configuration different from the air conditioning system of FIG. 7, the return air duct 35 is excluded, and instead, the inside of the ceiling is filled with the return air and suctioned by the open suction port 29 of the package type air conditioner 13 The ceiling chamber 36 is provided. By making the ceiling a closed space to a certain extent, a ceiling slit or the like becomes the return air port 24, the degree of freedom of the shape of the return air port 24 is increased, and the design can be improved and the cost can be reduced.
This can adjust and adjust the damper of each variable volume unit 23 by the temperature sensor of each area in the living room 20 about the mixed air of outside air and adjustment air, and can blow out and supply it to the interior side, and the lower side of the air supply box 1 The control air is supplied from the air outlet 25 on the perimeter side by controlling only the adjustment air through the distribution duct 16 according to the measurement value of the temperature sensor on the side of the perimeter, by controlling the damper contained in the air volume change unit 23 in the middle. be able to.

FIG. 9 is a diagram showing a third embodiment of the air conditioning system of the invention such as an office building.
A configuration different from the air conditioning system of FIG. 7 is an air conditioning system targeting a plurality of rooms such as an office building, and supplies outdoor air from a single external conditioner 22 to a plurality of air supply boxes 1 and condenses Air conditioner (cooling) / evaporator (heating), propeller fan, expansion valve, compressor etc. One outdoor unit 26 is equipped with evaporator (cooling) / condenser (heating), fan The plurality of package type air conditioners 13 are configured to be supplied with a refrigerant that forms a refrigeration cycle with refrigerant pipes.
An exhaust fan 27 exhausts air containing carbon dioxide and the like in the living room 20 from an exhaust port 28 provided in the ceiling 11.
A hot water coil, a cold water coil, a humidifier, an outdoor air fan and the like are built in the air conditioner 22 so that the temperature-controlled outside air can be supplied through the air duct 12.

1: Air supply box 10: Air supply box case 10a: Right side plate 10b of air supply box case: Front plate 10c of air supply box case: Left side plate 10d of air supply box case: Air supply box case Back plate 10e: Bottom plate of air supply box case 2: Outside air inlet 3: Air adjustment inlet 4: Mixed air outlet (outlet of air and adjustment air)
5: Partition plate 6: Outside air introduction space in the air supply box case 7: Adjustment air introduction space in the air supply box case 8: Adjustment air outlet 11: Ceiling 12 in a room such as an office building 12: Outside air duct 13: Package Type air conditioner 14: mixed air duct 15: air inlet (interior outlet)
16: Distribution duct 17: Adjustment air distribution member 18: Distribution branch duct 19: Line type diffuser 20: Living room such as office building 21: Window 22: Outside air conditioner 23: Variable air volume unit 24: Return air opening 25: Air outlet (Perimeter outlet)
26: outdoor unit 27: fan 28: exhaust port 29: suction port 35: return air duct 36: ceiling chamber A: interior side of living room B: perimeter side of living room

Claims (5)

A partition plate (5) is installed inside the casing to form a first casing and a second casing, and the outside air is introduced into the first casing forming the outside air introducing space (6) A ceiling on the air supply side of a ceiling concealing air conditioner provided with an inlet (2) and provided with a regulated air inlet (3) for introducing regulated air into a second housing constituting the regulated air introduction space (7) In the air supply box (1) installed inside,
The surface extension direction of the partition plate (5) is substantially parallel to the central axial direction of the outside air inlet (2) and the central axial direction of the adjustment air inlet (3),
The outside air and the adjustment air are discharged by drilling across the outside air introduction space (6) and the adjustment air introduction space (7) in a housing wall in contact with the end of the partition plate (5) A mixed air outlet (4) is provided,
An air supply box characterized in that an adjustment air outlet (8) is provided in a second case constituting the adjustment air introduction space (7) of the air supply box (1) . Outside air duct (12) for transporting outside air temperature-controlled by the outside air conditioner (22) above the ceiling (11) of a living room (20) such as an office building, and a packaged air conditioner which is a ceiling concealed air conditioner (13) and an air supply box (1) for introducing outside air from the outside air duct (12) and introducing adjustment air from the packaged air conditioner (13), and in the middle of the outside air duct (12) The mixed air conveying the mixed air obtained by mixing the outside air and the adjustment air in the air flow variable unit (23) provided and the air supply box (1) to the interior side (A) in the living room (20) The mixed air duct (14) connected to the discharge port (4), and the adjusted air discharge port (8) for supplying the adjusted air from the air supply box (1) to the perimeter side (B) in the living room (20) Distribution duct (1) connected to And a return air duct (35) for returning air in the room (20) to the packaged air conditioner (13), and the ceiling is provided on the interior side of the room (20) A) an interior outlet (15) for supplying the mixed air, a perimeter outlet (25) for supplying the conditioned air to the perimeter side (B) in the room (20), and a room (20) A return air port (24) connected to the return air duct (35) for returning air containing the exhalation of the resident of the occupant) to the package type air conditioner (13). Air conditioning system for
An air conditioning system for an office building or the like, wherein the air supply box (1) is the air supply box (1) according to claim 1 . Outside air duct (12) for transporting outside air temperature-controlled by the outside air conditioner (22) above the ceiling (11) of a living room (20) such as an office building, and a packaged air conditioner which is a ceiling concealed air conditioner (13) and an air supply box (1) for introducing outside air from the outside air duct (12) and introducing adjustment air from the packaged air conditioner (13), and in the middle of the outside air duct (12) The mixed air conveying the mixed air obtained by mixing the outside air and the adjustment air in the air flow variable unit (23) provided and the air supply box (1) to the interior side (A) in the living room (20) The mixed air duct (14) connected to the discharge port (4), and the adjusted air discharge port (8) for supplying the adjusted air from the air supply box (1) to the perimeter side (B) in the living room (20) Distribution duct (1) connected to And a ceiling chamber (36) for returning air in the room (20) to the packaged air conditioner (13), and the ceiling is provided on the interior side (A) of the room (20). An interior outlet (15) for supplying the mixed air to the
The package type air conditioner (periphery outlet (25) for supplying the conditioned air to the perimeter side (B) in the living room (20), and air including the exhalation of the occupant of the living room (20) 13) An air conditioning system for a living room such as an office building provided with a return air port (24) for refluxing through the ceiling chamber (36);
An air conditioning system for an office building or the like, wherein the air supply box (1) is the air supply box (1) according to claim 1 . Outside air duct (12) for transporting outside air temperature-controlled by the outside air conditioner (22) above the ceiling (11) of a living room (20) such as an office building, and a packaged air conditioner which is a ceiling concealed air conditioner (13) and an air supply box (1) for introducing outside air from the outside air duct (12) and introducing adjustment air from the package type air conditioner (13); and in the air supply box (1) A mixed air duct (14) connected to the mixed air outlet (4) for transporting mixed air obtained by mixing the outside air and the conditioned air to the interior side (A) in the living room (20); Variable air volume units (23) respectively provided in the middle of the branched end of the air duct (14), and the above-mentioned adjustment air is supplied from the air supply box (1) to the perimeter side (B) in the living room (20) Connected to the regulated air outlet (8) A distribution duct (16), and a return air duct (35) for returning air in the room (20) to the packaged air conditioner (13), the ceiling comprising the room (20) An interior outlet (15) for supplying the mixed air to the interior side (A) of the interior, and a perimeter outlet (25) for supplying the conditioned air to the perimeter side (B) in the living room (20) Office work provided with a return air port (24) connected to the return air duct (35) for returning air containing breath of a resident of a living room (20) to the package type air conditioner (13) Air conditioning system for living rooms such as office buildings,
An air conditioning system for an office building or the like, wherein the air supply box (1) is the air supply box (1) according to claim 1 . Outside air duct (12) for transporting outside air temperature-controlled by the outside air conditioner (22) above the ceiling (11) of a living room (20) such as an office building, and a packaged air conditioner which is a ceiling concealed air conditioner (13) and an air supply box (1) for introducing outside air from the outside air duct (12) and introducing adjustment air from the package type air conditioner (13); and in the air supply box (1) A mixed air duct (14) connected to the mixed air outlet (4) for transporting mixed air obtained by mixing the outside air and the conditioned air to the interior side (A) in the living room (20); A distribution duct (16) connected to the conditioning air outlet (8) for supplying conditioning air from the air box (1) to the perimeter side (B) in the living room (20); and the mixed air duct (14) Branch destination and the distribution A variable air volume unit middle provided the bets (16) (23),
The packaged air conditioner (13) includes a ceiling chamber (36) for returning air in the living room (20), and the ceiling includes the interior side (A) in the living room (20). An interior outlet (15 ') for supplying mixed air, a perimeter outlet (25) for supplying the conditioned air to the perimeter side (B) in the living room (20), and a residence of the living room (20) Air conditioning system for a living room such as an office building provided with a return port (24) for returning air containing the exhaled breath of the person to the package type air conditioner (13) through the ceiling chamber (36) And
An air conditioning system for an office building or the like, wherein the air supply box (1) is the air supply box (1) according to claim 1 .

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