JP2015206544A - air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioning system which forms a uniform thermal environment while reducing an energy load.SOLUTION: An air conditioning system 1 includes a cooling device 30 having a cold water pipeline in which cold water circulates. The cooling device 30 is provided between a ceiling panel 10 provided on a ceiling C of a room 2 and a floor slab SJ on an upper floor which is provided above the ceiling panel 10. A penetration part 11A which penetrates through the ceiling panel 10 in a vertical direction is formed at the ceiling panel 10.

Description

  The present invention relates to an air conditioning system.

Generally, a central air conditioning system, a package type air conditioning system, etc. are known as a cooling system.
In cooling by the central air conditioning system, an air conditioner installed in a machine room or the like cools air to an appropriate temperature, and the cooled air is conveyed and blown out from a blowout port provided in a living room. However, in this central air conditioning system, a temperature difference is generated according to the distance from the air outlet, in which the room temperature is low in the vicinity of the air outlet and the room temperature increases as the distance from the air outlet increases. Moreover, the office worker in the vicinity of the air outlet may feel uncomfortable because the body receives the cooled air directly. Thus, with the central air conditioning system, it is difficult to create a uniform thermal environment in the room.

  In the cooling by the package type air conditioning system, an air conditioner in which a heating / cooling device and a fan are integrated is installed on a ceiling surface. Similarly in this package type air conditioning system, the room temperature is similarly affected by the position of the air outlet, and there is a problem that it is difficult to make the room a uniform thermal environment.

  Therefore, a radiation panel provided on the ceiling, a plurality of cold water pipes provided on the upper surface of the radiation panel, a partition that partitions the upper side of the radiation panel into an interior side and a perimeter side, and air on the interior side toward the perimeter side A ceiling radiation type air conditioning system including a blower capable of blowing air has been proposed (see Patent Document 1 below). In such a ceiling radiation type air conditioning system, the radiation panel is cooled by the cold water flowing through the cold water pipe, and the room is cooled by the radiation effect of the cooled radiation panel.

  An indoor air conditioning system including a ceiling radiating panel provided on the ceiling and an indoor air conditioner provided above the ceiling radiating panel has also been proposed (see Patent Document 2 below). In such an indoor air conditioning system, the air above the ceiling radiating panel is cooled by the indoor air conditioner, and the cooled air cools the ceiling radiating panel. And it is the structure by which it cools and the room | chamber interior is cooled by the cold radiation of a ceiling radiation panel.

JP 2011-2105 A Japanese Patent No. 4605759

In the ceiling radiant air conditioning system described in Patent Document 1 above, if the amount of heat generated by the worker or the equipment is high, the worker is not sufficiently cooled by the radiation effect of the radiant panel, and a more comfortable thermal environment is desired. It is rare.
Further, in the indoor air conditioning system described in Patent Document 2 above, the cooled air above the ceiling radiating panel is not configured to move from the upper side of the ceiling radiating panel to the indoor side, so that the room is not sufficiently cooled. There is a point. Furthermore, when air is flowed by a fan or the like in order to cool the space above the ceiling radiating panel, there is a problem that the energy load increases.

  Then, this invention is made | formed in view of the said situation, and provides the air-conditioning system which can form a uniform thermal environment, suppressing energy load.

In order to achieve the above object, the present invention employs the following means.
That is, the air conditioning system according to the present invention includes a cooling device having a cold water pipe through which cold water flows, and the cooling device is provided on a panel-like ceiling panel provided on the ceiling of the room and above the ceiling panel. It is provided in the space in the ceiling between the floor slabs on the upper floor, and the ceiling panel is formed with a penetrating portion penetrating from the space in the ceiling to the room.

In the air conditioning system configured as described above, cold water flows in the cold water piping of the cooling device provided between the ceiling panel and the floor slab of the upper floor. When the cold water flows through the cold water pipe, the air in the ceiling space is cooled and the density is increased. This cooled and high-density air moves downward, passes through the through-hole formed in the ceiling panel, and moves to the room. On the other hand, the air heated by the heat load of the room, such as the heat generated by the office workers and the heat generated by the equipment, moves upward and passes through the penetrating portion of the ceiling panel to reach the ceiling space. This warmed air is cooled by the cold water flowing through the cold water pipe as described above. When the air cooled by the cooling device moves into the room, it collides with a portion around the penetration portion in the ceiling panel, so that the downward movement is somewhat suppressed. Thereby, the cooled air moves to the room at an appropriate lowering speed. Therefore, a uniform thermal environment can be formed.
Moreover, since the air in a room can be cooled by natural convection without carrying power, energy load can be suppressed.

  Further, in the air conditioning system according to the present invention, the opening ratio of the first ceiling panel provided above the place with a large heat load in the room is the first number provided above the place with a small heat load in the room. It is preferably larger than the opening ratio of the two ceiling panels.

  The air conditioning system configured as described above is provided with a first ceiling panel having a large opening ratio in a place with a large heat load in the room, and a second ceiling panel having a small opening ratio in a place with a small heat load in the room. Is provided. Therefore, since the opening ratio of the ceiling panel is large in a place where the heat load of the room is large, the cooled air is moved downward and warmed, and the air is moved upward, so that natural convection occurs smoothly. Therefore, since the air in a room can be appropriately cooled according to a heat load, a uniform thermal environment can be formed.

  The air conditioning system according to the present invention includes a plurality of the cooling devices, a temperature detection unit that detects the temperature of the room, and a cooling capacity of the plurality of cooling devices according to the temperature detected by the temperature detection unit. You may provide the control part which controls.

  The air conditioning system configured as described above controls the cooling capacity of the plurality of cooling devices according to the room temperature detected by the temperature detection unit. Therefore, it is possible to adjust the interior of the room to an appropriate temperature by increasing the cooling capacity of the cooling device for a room having a high temperature and suppressing the cooling capacity of the cooling device for a room having a low temperature. it can.

  In the air conditioning system according to the present invention, the ceiling panel may be made of metal.

  In the air conditioning system configured as described above, the cooled air around the cooling device cools the ceiling panel made of metal having high thermal conductivity. Therefore, the inside of the room can be efficiently cooled by the cold radiation from the cooled ceiling panel.

  Further, in the air conditioning system according to the present invention, the cooling device includes a plurality of plate fins that are spaced apart from each other in the extending direction of the cold water pipe and in which through holes that penetrate in the extending direction are formed. The cold water pipe may be inserted through the through hole of the plate fin.

  Since the air conditioning system configured as described above exchanges heat also on the front and back surfaces of the plate fins, the heat transfer area is larger than the configuration having only the cold water piping. Therefore, the air around the cooling device can be effectively cooled.

  In the air conditioning system according to the present invention, the cooling device may have a support plate that supports the cold water pipe.

  Since the air conditioning system configured in this manner exchanges heat also on the front and back surfaces of the support plate, the heat transfer area is larger than the configuration having only the cold water piping. Therefore, the air around the cooling device can be effectively cooled.

  Moreover, the air-conditioning system which concerns on this invention may be formed so that the said cold water piping may be wound in the said helical shape.

  The air conditioning system configured as described above has a larger heat transfer area than the chilled water pipe formed linearly. Therefore, the air around the cooling device can be effectively cooled.

  Further, in the air conditioning system according to the present invention, the cold water pipe is formed in a tubular shape, and has a pipe main body through which the cold water flows and a radiating fin extending radially outward from an outer periphery of the pipe main body. May be.

  Since the air conditioning system configured in this manner also performs heat exchange even with the heat radiating fins, the heat transfer area is larger than the configuration having only the piping main body. Therefore, the air around the cooling device can be effectively cooled.

  The air conditioning system according to the present invention can form a uniform thermal environment while suppressing energy load.

(A) It is a typical figure showing composition of an air-conditioning system concerning a first embodiment of the present invention, (b) is a top view of a ceiling panel of a room in which a cooling device which constitutes an air-conditioning system is provided, (c ) It is a schematic diagram showing the configuration of the main part of the air conditioning system, (d) is an enlarged view of the ceiling panel of the room where the cooling device constituting the air conditioning system is provided. It is a perspective view of a cooling device about the composition of the air-conditioning system concerning a first embodiment of the present invention. It is a top view of the ceiling panel of the room in which the cooling device which the air-conditioning system which concerns on the modification 1 of 1st embodiment of this invention comprises is provided. It is a typical figure showing composition of an air-conditioning system concerning a second embodiment of the present invention. It is a top view of the ceiling panel of the room in which the cooling device which comprises the air conditioning system which concerns on the modification 1 of 2nd embodiment of this invention is provided. It is a perspective view of the cold water piping which comprises the air conditioning system which concerns on 3rd embodiment of this invention. It is a perspective view of the cold water piping which comprises the air conditioning system which concerns on 4th embodiment of this invention. It is a perspective view of the cold water piping which comprises the air conditioning system which concerns on 5th embodiment of this invention. (A) It is a top view showing typically the state where cold water piping of a plurality of cooling devices which constitute an air-conditioning system concerning a sixth embodiment of the present invention is arranged in series, and (b) cold water of a plurality of cooling devices It is a figure which shows operation | movement when piping is arrange | positioned in parallel and a thermal load is large, (c) It is a figure which shows operation | movement in case a some cooling device is arrange | positioned in parallel and thermal load is smaller than (b). (D) It is a figure which shows operation | movement in case a some cooling device is arrange | positioned in parallel and a thermal load is smaller than (c). (A) It is a top view showing typically the state where cold water piping of a plurality of cooling devices which constitute an air-conditioning system concerning modification 1 of a sixth embodiment of the present invention is arranged in series, (b) a plurality of It is a figure which shows operation | movement when the cold water piping of a cooling device is arrange | positioned in parallel, and a heat load is large, (c) When a some cooling device is arrange | positioned in parallel and a heat load is smaller than the case of (b) It is a figure which shows operation | movement. It is a typical figure showing composition of an air-conditioning system concerning modification 2 of a sixth embodiment of the present invention.

(First embodiment)
An air conditioning system according to a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1: is a schematic diagram which shows the structure of (a) air-conditioning system which concerns on 1st embodiment of this invention, (b) It is a top view of the ceiling panel of the room in which the cooling device which comprises an air-conditioning system is provided. And (c) is a schematic diagram showing a configuration of a main part of the air conditioning system, and (d) is an enlarged view of a ceiling panel of a room provided with a cooling device constituting the air conditioning system. FIG. 2 is a perspective view of the cooling device of the configuration of the air conditioning system according to the first embodiment of the present invention.
As shown to Fig.1 (a), the air conditioning system 1 which concerns on this embodiment is arrange | positioned in the ceiling C of a building, and cools the air in the living room 2 (room).

First, the target room 2 will be described.
The living room 2 has a plurality of walls W that partition the space between the floor slab S and a room (not shown) that extends upward from the floor slab S, and a ceiling C that faces the floor slab S. In the building, a plurality of such living rooms 2 are provided in the horizontal direction and the vertical direction.

  The ceiling C is provided with a ceiling panel 10 that forms a horizontal plane. As shown in FIG. 1B, the ceiling panel 10 is configured by arranging a plurality of ceiling panel main bodies 11 formed in a panel shape. In the present embodiment, the ceiling panel body 11 is made of a metal such as aluminum and has a rectangular shape in plan view. The ceiling panel body may be composed of an asbestos sound absorbing board or the like.

  A space K in the ceiling is formed between the ceiling panel 10 and the floor slab SJ of the upper room 2J of the living room 2.

  As shown in FIGS. 1C and 1D, the ceiling panel body 11 has a plurality of ceiling through holes 11 </ b> A (penetrating portions) penetrating from the space K in the ceiling to the living room 2. In the present embodiment, the ceiling through hole 11A is formed in a circular shape. The opening ratio of the ceiling panel body 11 (the total area of the plurality of ceiling through holes 11A with respect to the area of the ceiling panel body) is preferably 6 to 30%.

Next, the air conditioning system 1 will be described.
As shown in FIG. 1A, the air conditioning system 1 includes a temperature detection unit 21 that is provided in the living room 2 and detects the temperature in the living room 2, a plurality of cooling devices 30, and a control unit 39 that controls the cooling device 30. And have.

  A plurality of cooling devices 30 are provided in the ceiling space K. For example, the cooling device 30 is supported by the floor slab SJ so as to be suspended by a support portion 30S provided on the floor slab SJ.

The cooling device 30 is preferably provided at an intermediate height in the vertical direction between the upper surface 10P of the ceiling panel 10 and the lower surface 1SJ of the floor slab SJ. That is, the height H1 of the space between the lower surface 30P of the cooling device 30 and the upper surface 10P of the ceiling panel 10, and the height of the space between the upper surface 30Q of the cooling device 30 and the lower surface 1SJ of the floor slab SJ. It is preferable that it is the same as H2.
Further, assuming that the height of the ceiling space K is H0, the cooling device 30 is preferably arranged in a space of 0.1H0 or more and 0.8H0 or less from the upper surface 10P of the ceiling panel 10.

  As shown in FIG. 2, the cooling device 30 includes a housing 31, a plurality of plate fins 32 disposed in the housing 31, and a cold water pipe 33 through which cold water flows.

The casing 31 has two side wall portions 31S and 31T that are formed in a plate shape and are opposed to each other, and end portions of the side wall portions 31S and 31T are connected to each other, and insertion wall portions 31U and 31V that are formed in a plate shape. And have. The side wall portions 31S and 31T and the insertion wall portions 31U and 31V are arranged along the vertical plane. Accordingly, openings 31W and 31X penetrating in the vertical direction are formed in the casing 31 on the upper and lower sides in the vertical direction, respectively.
Here, the direction from the insertion wall portion 31U toward the insertion wall portion 31V is the X1 direction, the direction from the side wall portion 31S to the side wall portion 31T is the Y1 direction, and the direction from the opening portion 31W to the opening portion 31X (vertical direction). The direction is Z1.

  Further, a plurality of pipe through holes 31A, which are through holes in the X1 direction, are formed in the insertion wall portions 31U and 31V so as to be separated in the Y1 direction.

  The plate fin 32 is disposed between the side wall portions 31S and 31T so as to be parallel to the insertion wall portions 31U and 31V. A plurality of the plate fins 32 are arranged apart from each other in the X1 direction. Further, the plate fin 32 is formed with a plurality of fin through holes 32S (through holes) which are through holes penetrating in the X1 direction so as to be separated in the Y1 direction.

  The cold water pipe 33 is connected to a refrigerator or a heat pump (not shown). Thereby, it is set as the structure through which the cold water manufactured with the refrigerator or the heat pump distribute | circulates.

The cold water pipe 33 is formed such that a straight pipe part 33D formed in a straight line and a curved pipe part 33E formed in a curved line are continuous.
In the cold water pipe 33, the straight pipe part 33D is inserted from the pipe through hole 31A on the side wall part 31S side in the insertion wall part 31U, extends in the X1 direction, and has a plurality of plate fins 32, 32. Are inserted sequentially. The straight pipe portion 33D is inserted into the pipe through hole 31A of the insertion wall portion 31V, and a curved pipe portion 33E continuing to the straight pipe portion 33D is disposed outside the side wall portion 31S. The other straight pipe portion 33D continuing to the curved pipe portion 33E is inserted into the pipe through hole 31A on the side wall portion 31T side of the insertion wall portion 31V and extends in the X1 direction. In this way, the cold water pipe 33 formed in a meandering shape is inserted into the plurality of plate fins 32.
Further, it is preferable that the height (the length in the Z1 direction) of the plate fins 32 and the distance between the plate fins 32 (the distance in the X1 direction) are larger. Thereby, in the housing | casing 31, the natural convection mentioned later for details is accelerated | stimulated.

  The controller 39 controls the cooling capacity of the cooling device 30 according to the temperature of the living room 2 detected by the temperature detector 21 (hereinafter referred to as “detected temperature”). For example, the control unit 39 compares the detected temperature with a predetermined temperature (hereinafter referred to as “initial setting temperature”). As a result, when the detected temperature is higher than the initial set temperature, the cooling device 30 is operated.

Further, the temperature of cold water flowing through the cooling device 30 (hereinafter referred to as “cold water temperature”) and the amount of cold water (hereinafter referred to as “cold water amount”) according to the difference between the detected temperature and the initial set temperature. Adjust. Specifically, as the difference between the detected temperature and the initial set temperature increases, the cold water temperature is lowered and the amount of cold water is increased.
When the detected temperature is equal to or lower than the initial set temperature, the cooling device 30 is stopped.

Next, the flow of air in the air conditioning system 1 configured as described above will be described.
In the air conditioning system 1, cold water flows through the cold water pipe 33 of the cooling device 30 provided between the ceiling panel 10 and the floor slab SJ on the upper floor. Heat exchange is performed between the cold water flowing through the cold water pipe 33 and the air around the cold water pipe 33. The cooled air whose density has been increased moves downward from the opening 31 </ b> X of the cooling device 30, passes through the ceiling through hole 11 </ b> A formed in the ceiling panel 10, and moves to the living room 2. On the other hand, the air heated by the heat load of the living room 2 such as the heat generated by the worker in the living room 2 and the heat generated by the equipment moves upward, passes through the ceiling through hole 11A of the ceiling panel 10 and passes through the ceiling panel 10. And the opening 31W of the cooling device 30 provided between the upper floor slab SJ and the upper floor slab SJ. And this air is cooled by heat exchange with the cold water which distribute | circulates the inside of the cold water piping 33 as mentioned above. In this way, the air that has been cooled by the cold water pipe 33 and has a high density moves downward, and natural convection occurs in which the warm air in the living room 2 moves upward.

In the air conditioning system 1 configured in this way, when the cooled air moves to the living room 2, it collides with a portion around the ceiling through hole 11 </ b> A in the ceiling panel 10, and thus the downward movement is somewhat. It is suppressed. Thereby, the cooled air moves to the living room 2 at an appropriate descending speed. Therefore, a uniform thermal environment can be formed.
Moreover, since the air in the living room 2 can be cooled by natural convection without carrying power, the energy load can be suppressed.

  Moreover, since the cold water temperature and the amount of cold water are adjusted according to the temperature of the living room 2 detected by the temperature detector 21, the inside of the living room 2 can be adjusted to an appropriate temperature. Therefore, it is possible to form a comfortable thermal environment and save energy.

  Moreover, the cooled air around the cooling device 30 cools the ceiling panel 10 made of a metal having high thermal conductivity. Therefore, the inside of the living room 2 can be efficiently cooled by the cold radiation from the cooled ceiling panel 10.

  In addition, since the cooling device 30 exchanges heat also on the front and back surfaces of the plate fins 32, the heat transfer area is larger than the configuration having only the cold water pipe 33. Therefore, the air around the cooling device 30 can be effectively cooled.

  Moreover, since the cooling device 30 is provided at a height in the vertical direction between the ceiling panel 10 and the lower surface 1SJ of the floor slab SJ, the cooling device 30 is cooled between the upper surface 10P of the ceiling panel 10 and the lower surface 30P of the cooling device 30. Since air flows smoothly between the upper surface 30Q of the device 30 and the lower surface 1SJ of the floor slab SJ, natural convection can be efficiently performed.

(Modification 1 of the first embodiment)
Modification 1 of the first embodiment described above will be described mainly with reference to FIG.
FIG. 3 is a top view of a ceiling panel of a room provided with a cooling device included in an air conditioning system according to Modification 1 of the first embodiment of the present invention.
In the following modified examples and other embodiments, the same members as those used in the above-described embodiments are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 3, the ceiling panel 110 is configured by arranging a plurality of ceiling panel bodies 111 formed in a panel shape. The ceiling panel main body 111 is arranged in a plurality of rows in the X2 direction, which is one direction in the horizontal direction. Furthermore, the ceiling panel body 111 is arranged in a plurality of stages in the Y2 direction, which is a direction orthogonal to one horizontal direction.

  Of the ceiling panel main body 111, a predetermined level of the ceiling panel main body 111 is formed with a slit (penetrating portion) 111A penetrating in the vertical direction and extending in the X2 direction. In this embodiment, the ceiling panel 111P in which the slit 111A is formed and the ceiling panel 111Q in which the slit 111A is not formed are alternately arranged in the Y2 direction.

  In the ceiling panel main bodies 111P, 111P,... Adjacent to each other in the X2 direction, the slits 111A, 111A,.

  Also in the air conditioning system configured as described above, the air cooled by the cooling device 30 (see FIG. 1) and the air warmed by the thermal load of the living room 2 (see FIG. 1) pass through the slits 111A, respectively.

(Second embodiment)
Next, the air conditioning system which concerns on 2nd embodiment of this invention is demonstrated mainly using FIG.
FIG. 4 is a schematic diagram showing a configuration of an air conditioning system according to the second embodiment of the present invention.

  As shown in FIG. 4, a copier E having a large calorific value (heat load) is installed in the living room 2.

  The first ceiling panel body (first ceiling panel) 211P disposed directly above the copy machine E and above the periphery of the copy machine E (hereinafter referred to as “above the copy machine E”) has a ceiling through hole 211A. Is formed. A ceiling through hole 211B is formed in the second ceiling panel body (second ceiling panel) 211Q.

  The area of the ceiling through hole 211A of the first ceiling panel body 211P disposed above the copier E is larger than the area of the ceiling through hole 211B of the second ceiling panel body 211Q.

  The opening ratio of the first ceiling panel body 211P disposed above the copier E (the total area of the ceiling through-holes 211A with respect to the area of the first ceiling panel body 211P) is the opening ratio of the second ceiling panel body 211Q. It is larger than (the total area of the ceiling through-holes 211B with respect to the area of the second ceiling panel body 211Q).

  In the air conditioning system 1 configured as described above, the first ceiling panel body 211P having a large opening ratio is provided in a place with a large heat load in the living room 2, and the opening ratio is set in a place with a small heat load in the living room 2. A small second ceiling panel main body 211Q is provided. Therefore, since the opening ratio of the first ceiling panel body 211P is large in the place where the thermal load of the living room 2 is large, the movement of the cooled air is moved downward and warmed, and the movement of the air is large, and natural convection is smooth. To occur. Therefore, since the air in the living room 2 can be appropriately cooled according to the heat load, a uniform thermal environment can be formed.

(Modification 1 of the second embodiment)
Modification 1 of the second embodiment described above will be described mainly with reference to FIG.
FIG. 5 is a top view of a ceiling panel of a room provided with a cooling device constituting an air conditioning system according to Modification 1 of the second embodiment of the present invention.

As shown in FIG. 5, the ceiling panel 310 includes three types of ceiling panel bodies 311P, 311Q, and 311R having different aperture ratios.
The opening ratio of the ceiling panel body 311P is larger than the opening ratio of the ceiling panel body 311Q. The opening ratio of the ceiling panel body 311Q is larger than the opening ratio of the ceiling panel body 311R.
The types of ceiling panel bodies 311P, 311Q, and 311R having different aperture ratios are not limited to three types, and can be set as appropriate.
Here, the first column, the second column,... From the one side in the X3 direction (the left side in FIG. 5), respectively. Further, the first stage, the second stage, and so on from one side in the Y3 direction (the upper side in the drawing shown in FIG. 5), respectively. In the present embodiment, the ceiling panel 310 is configured in six rows and four stages.

  The ceiling panel body 311P is arranged in the second and third stages of the first row. The ceiling panel body 311Q is arranged in the second and third stages of the fourth and fifth rows. The ceiling panel body 311R is disposed at other positions.

  In the living room 2, a ceiling panel body 311 </ b> P is disposed above a place where electrical equipment or the like having a large heat generation amount is arranged, that is, above a place where the heat load is large. In addition, a ceiling panel body 311R is arranged above a place where it is desired to suppress the cold draft from the cooling device 30.

  In the air conditioning system 1 configured as described above, a plurality of types of ceiling panel bodies 311P, 311Q, and 311R having different opening ratios are arranged according to the size of the thermal load, thereby forming a uniform thermal environment. it can. In addition, when changing the arrangement location of electrical devices with a large amount of heat generation in the living room 2, a uniform thermal environment is formed even after the arrangement is changed by simply changing the arrangement position of the ceiling panel bodies 311P, 311Q, 311R. can do.

(Third embodiment)
Next, the air conditioning system which concerns on 3rd embodiment of this invention is demonstrated mainly using FIG.
FIG. 6 is a perspective view of the cold water piping constituting the air conditioning system according to the third embodiment of the present invention.

  As shown in FIG. 6, the cold water pipe 433 </ b> A is formed so as to be spirally wound along the axis O.

  In the air conditioning system configured as described above, for example, the heat transfer area is larger than that of the cold water pipe formed linearly along the axis O. Therefore, the air around the cooling device 30 (see FIG. 1) can be effectively cooled.

(Fourth embodiment)
Next, an air conditioning system according to a fourth embodiment of the present invention will be described mainly using FIG.
FIG. 7 is a perspective view of a cold water pipe constituting the air conditioning system according to the fourth embodiment of the present invention.

  As shown in FIG. 7, the cold water pipe 433B is formed in a tubular shape, and includes a pipe main body 433C through which cold water flows, and a plurality of heat radiation fins 433D, 433D... Extending radially outward from the outer periphery of the pipe main body 433C. Have.

  The heat radiation fins 433D are provided in the circumferential direction of the pipe main body 433C. The heat dissipating fins 433D are tapered so as to become thinner from the radially inner side to the outer side (from the proximal end side to the distal end side).

  In the air conditioning system configured as described above, by providing the heat radiation fins 433D, the heat transfer area is larger than the configuration having only the cold water pipe 33. Therefore, the air around the cooling device 30 (see FIG. 1) can be effectively cooled.

(Fifth embodiment)
Next, an air conditioning system according to a fifth embodiment of the present invention will be described mainly using FIG.
FIG. 8 is a perspective view of the cold water piping constituting the air conditioning system according to the fifth embodiment of the present invention.

  As shown in FIG. 8, the cooling device 430 includes a plurality of support plates 433G, 433G,... That support the cold water pipe 433F. The support plate 433G is provided on the bottom 30T of the cooling device 30 (see FIG. 1). The support plate 433G is formed in a plate shape, and a plurality of the support plates 433G are arranged apart from each other in the extending direction of the cold water pipe 433F.

  A concave portion 433H that is recessed in a semicircular shape is formed on the upper portion of the support plate 433G. The cold water pipe 433F is disposed along the recess 433H of the support plate 433G. Moreover, since it respond | corresponds to the shape of the lower half of the recessed part 433H and the cold water piping 433F, the cold water piping 433F is stably supported by the support plate 433G.

  In the air conditioning system configured in this way, heat exchange is performed also on the front and back surfaces of the support plate 433G (surfaces on both sides in the extending direction of the chilled water pipe 433F) 433X and 433Y. Becomes larger. Further, the support plate 433G creates a space between the bottom 30T of the cooling device 30 and the chilled water pipe 433F as high as the lower surface 433Z of the support plate 433G and the lower end 433I of the recess 433H. The air flows smoothly. Therefore, the air around the cooling device 430 can be effectively cooled.

(Sixth embodiment)
Next, the air conditioning system which concerns on 6th embodiment of this invention is demonstrated mainly using FIG.
FIG. 9: is a top view which shows typically the state by which the chilled water piping of the (a) several cooling device which comprises the air conditioning system which concerns on 6th embodiment of this invention is arrange | positioned in series, (b) Several It is a figure which shows operation | movement when the chilled water piping of a cooling device is arrange | positioned in parallel, and a heat load is large, (c) Operation | movement in case a some cooling device is arrange | positioned in parallel and a heat load is smaller than (b). (D) It is a figure which shows operation | movement in case a some cooling device is arrange | positioned in parallel and a thermal load is smaller than (c).

As shown to Fig.9 (a), the air conditioning system 501 has eight cooling device 530A-530H. The eight cooling devices 530A to 530H are intensively arranged at the center in plan view of the living room 2 (see FIG. 1, the same applies hereinafter).
Here, the horizontal direction is defined as the X4 direction, and the direction orthogonal to the horizontal direction is defined as the Y4 direction. In addition, the first row, the second row,... From the one side in the X4 direction (the left side in FIG. 9), respectively. In addition, the first stage, the second stage, and so on from one side in the Y4 direction (the upper side in the drawing shown in FIG. 9), respectively. In the present embodiment, the cooling devices 530A to 530H are configured in four rows and two stages.

  A chilled water pipe 533 connected to a refrigerator or the like (not shown, the same applies hereinafter) and flowing through the first row second stage cooling device 530A includes a first row first stage cooling device 530B and a second row first stage cooling. Device 530C, second row second stage cooling device 530D, third row second stage cooling device 530E, third row first stage cooling device 530F, fourth row first stage cooling device 530G, fourth row The second stage cooling devices 530H are connected in this order, and extend from the fourth row second stage cooling device 530H to the outside.

  In the air conditioning system 501 configured in this manner, since the eight cooling devices 530A to 530H are intensively arranged at the center of the living room 2, the air at the center of the living room 2 can be intensively cooled.

  Moreover, as shown in FIG.9 (b), the chilled water piping 540 of the eight cooling devices 530A-530H may be arrange | positioned in parallel.

  Specifically, the chilled water pipe 540 includes a main pipe part 541 connected to a refrigerator or the like, branch pipe parts 542A, 542B, 542C, 542D branched from the main pipe part 534A, branch pipe parts 542A, 542B, 542C, And a main outlet pipe portion 543 that joins 542D and is connected to the outside.

  The branch piping portion 542A passes through the cooling device 530A, the cooling device 530B, and the cooling device 530A again from the main piping portion 541, and is connected to the main outlet pipe portion 543. Further, the branch pipe portion 542B passes through the cooling device 530D, the cooling device 530C, and the cooling device 530D again from the main piping portion 541, and is connected to the main outlet pipe portion 543. The branch piping portion 542C passes through the cooling device 530E, the cooling device 530F, and the cooling device 530E again from the main piping portion 541 and is connected to the main outlet pipe portion 543. Further, the branch pipe portion 542D passes through the cooling device 530H, the cooling device 530G, and the cooling device 530H again from the main pipe portion 541 and is connected to the main outlet pipe portion 543.

Next, the operation of the air conditioning system 501X configured as described above will be described.
As shown in FIG.9 (b), when the thermal load of the living room 2 is large, all 530A-530H are operated.

  As shown in FIG. 9C, when the thermal load of the living room 2 is medium, the valves 551B and 551D provided in the branch pipe portions 542B and 542D are closed and the cooling devices 530C, 530D, 530G and 530H are closed. Stop the operation. At this time, the cooling devices 530A, 530B, 530E, and 530F are operating.

  As shown in FIG. 9 (d), when the thermal load of the living room 2 is small, the valves provided in the branch pipe portions 542A, 542C, 542D are closed and the cooling devices 530A, 530B, 530E, 530F, The operation of 530G and 530H is stopped. At this time, the cooling devices 530C and 530D are operating.

  In the air conditioning system 501X configured as described above, the number of cooling devices 530A to 530H that operate when the thermal load of the living room 2 is large is increased, and the number of cooling devices 530A to 530H that operate when the thermal load of the living room 2 is small. Reduce. That is, the inside of the living room 2 can be adjusted to an appropriate temperature by adjusting the number of the cooling devices 530A to 530H that operate according to the thermal load of the living room 2.

(Modification 1 of 6th embodiment)
Modification 1 of the sixth embodiment described above will be described mainly with reference to FIG.
FIG. 10: is a top view which shows typically the state by which the chilled water piping of the (a) several cooling device which comprises the air-conditioning system which concerns on the modification 1 of 6th embodiment of this invention was arrange | positioned in series, b) It is a figure which shows operation | movement in case the chilled water piping of a some cooling device is arrange | positioned in parallel, and a heat load is large, (c) A some cooling device is arrange | positioned in parallel and a heat load is smaller than (b). It is a figure which shows operation | movement in the case.

  As shown in FIG. 10A, the air conditioning system 601 includes four cooling devices 630A, 630B, 630C, and 630D. The four cooling devices 630A, 630B, 630C, and 630D are distributed in the living room 2 (see FIG. 1, the same applies hereinafter).

  A chilled water pipe 633 connected to a refrigerator or the like (not shown, hereinafter the same) is connected in the order of the cooling device 630A, the cooling device 630B, the cooling device 630C, and the cooling device 630D, and extends outward from the cooling device 630D. .

  In the air conditioning system 601 configured as described above, since the four cooling devices 630A, 630B, 630C, and 630D are dispersedly arranged in the living room 2, the inside of the living room 2 can be cooled as a whole.

  Moreover, as shown in FIG.10 (b), the chilled water piping 640 of four cooling device 630A, 630B, 630C, 630D may be arrange | positioned in parallel.

  Specifically, the cold water pipe 640 includes a main pipe part 641 connected to a refrigerator or the like (not shown), branch pipe parts 642A, 642B, 642C, 642D branched from the main pipe part 641, branch pipe parts 642A, 642B, 642C, and 642D, and a main lead-out pipe portion 643 connected to the outside.

  The branch piping section 642A is connected in the order of the main piping section 641, the cooling device 630A, and the main outlet pipe section 643. Further, the branch pipe portion 642B is connected in the order of the main pipe portion 641, the cooling device 630B, and the main outlet pipe portion 643. Further, the branch piping portion 642C is connected in order of the main piping portion 641, the cooling device 630C, and the main outlet pipe portion 643. Further, the branch pipe portion 642 is connected in order of the main pipe portion 641, the cooling device 630 </ b> D, and the main outlet pipe portion 643.

Next, the operation of the air conditioning system 601X configured as described above will be described.
As shown in FIG. 10B, when the thermal load of the living room 2 is large, all the cooling devices 630A, 630B, 630C, and 630D are operated.

  As shown in FIG. 10C, when the thermal load of the living room 2 is small, the valves 651B and 651C provided in the branch pipe portions 642B and 642C are closed and the operations of the cooling devices 630B and 630C are stopped. At this time, the cooling devices 630A and 630D are operating.

  In the air conditioning system 601X configured as described above, the number of cooling devices 630A, 630B, 630C, and 630D that operate when the thermal load of the living room 2 is large is increased, and the cooling device 630A that operates when the thermal load of the living room 2 is small. , 630B, 630C, 630D. That is, the inside of the living room 2 can be adjusted to an appropriate temperature by adjusting the number of cooling devices 630A, 630B, 630C, and 630D that operate according to the thermal load of the living room 2.

(Modification 2 of the sixth embodiment)
Modification 2 of the sixth embodiment described above will be described mainly using FIG.
FIG. 11 is a schematic diagram showing a configuration of an air conditioning system according to Modification 2 of the sixth embodiment of the present invention.

  As shown in FIG. 11, the air conditioning system 601Y includes a plurality of cooling devices 30, 630,... Arranged in the vertical direction. In the air conditioning system 601Y configured as described above, the cooling capacity of the living room 2 can be increased. Moreover, the cold water piping (not shown) of the cooling device 630 can be arrange | positioned in series or in parallel like said 6th embodiment.

  The various shapes and combinations of the constituent members shown in the above-described embodiments are merely examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Air-conditioning system 2 ... Living room (room) SJ ... Floor slab of upper floor W ... Wall C ... Ceiling 10 ... Ceiling panel 11 ... Ceiling panel body 11A ... Ceiling through-hole (penetrating part) 21 ... Temperature detection part 30 ... Cooling device DESCRIPTION OF SYMBOLS 31 ... Housing | casing 31S ... Side wall part 31A ... Pipe through-hole (through-hole) 32 ... Plate fin 32S ... Fin through-hole 33 ... Cold water pipe 33D ... Straight pipe part 33E ... Curved pipe part 39 ... Control part K ... Space in ceiling

Claims (8)

A cooling device having a cold water pipe through which cold water flows is provided.
The cooling device is provided in a ceiling space between a panel-like ceiling panel provided on the ceiling of a room and an upper floor slab provided above the ceiling panel,
The air conditioning system according to claim 1, wherein a penetrating portion penetrating from the space in the ceiling to the room is formed in the ceiling panel.   The opening ratio of the first ceiling panel provided above the place with a large heat load in the room is larger than the opening ratio of the second ceiling panel provided above the place with a small heat load in the room. The air conditioning system according to claim 1, wherein A plurality of the cooling devices;
A temperature detector for detecting the temperature of the room;
3. The air conditioning system according to claim 1, further comprising a control unit that controls a cooling capacity of the plurality of cooling devices according to the temperature detected by the temperature detection unit.   The air conditioning system according to any one of claims 1 to 3, wherein the ceiling panel is made of metal. The cooling device is
A plurality of plate fins that are spaced apart from each other in the extending direction of the cold water pipe and in which through holes penetrating in the extending direction are formed;
The air conditioning system according to any one of claims 1 to 4, wherein the cold water pipe is inserted through the through hole of the plate fin. The cooling device is
The air conditioning system according to claim 1, further comprising a support plate that supports the cold water pipe.   The air conditioning system according to any one of claims 1 to 4, wherein the cold water pipe is formed so as to be wound in the spiral shape. The cold water piping is
A pipe body formed into a tubular shape and circulating the cold water;
The air conditioning system according to any one of claims 1 to 4, further comprising a heat dissipating fin extending radially outward from the outer periphery of the pipe body.

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