JP4837587B2 - Air conditioning system - Google Patents

Description

The present invention provides a computer room air-conditioning blower system in which an underfloor air-conditioning system is provided and a rack for accommodating computers, and the hot air remaining in the upper part of the indoor space is moved to the air-conditioner suction port it relates conditioning system comprising a heat transport system for.

  FIG. 11 is a perspective view of a conventional server room employing an underfloor air conditioning system as an air conditioning system. In a large-scale server room where a large number of large computers and servers are installed, there are many cases where a double-structure floor 11 is employed so that wiring 25 to server equipment can be performed. In a server room having such a double structure floor 11, an air supply chamber 23 is formed under the floor, cold air from the air conditioner 21 is supplied to the air supply chamber 23, and this cold air is provided on the floor surface. The room is air-conditioned (cooled) by being discharged into the indoor space 15 through a large number of small air outlets 11a, and the hot air generated from the server rack 17 is naturally flowed along the ceiling 13 to the air inlet 21a of the air conditioner 21. Many return so-called underfloor air-conditioning systems.

  In a server room that employs such an underfloor air conditioning system, the number of wirings to the server equipment routed into the air supply chamber 23 increases due to the progress of highly integrated systems. As a result of stacking, the flow path in the air supply chamber is narrowed, the cold air from the air conditioner is shut off, and the cold air cannot be blown out uniformly from the floor surface of the entire server room as expected at the time of building design Has occurred. In such a case, generally, in the vicinity of the air conditioner 21, the cool air blows out better than the air outlets on the floor surface, so that the room temperature becomes low. turn into.

  As another problem, due to an increase in the amount of heat generated by server equipment in recent years, it is not sufficient to simply blow out cold air from the floor, and local concentration of heat and uneven distribution of heat load occur in some areas of the room. There are also problems.

  Yet another problem is that when hot air is exhausted from the rack on which the server is mounted, an air flow upward from the top of the rack is strongly blown, but this air current disturbs the natural flow of hot air along the server room ceiling. The operation of returning to the air inlet of the air conditioner may not be performed satisfactorily. Conventionally, such a problem has been addressed by lowering the set temperature of the air conditioner or increasing the number of air conditioners.

  As another countermeasure, it has been proposed to suppress a short circuit in which hot air returns directly to the server by providing a guide for guiding the hot air discharged from the server to the air inlet of the air conditioner (see, for example, Patent Document 1). ). As a countermeasure against this short circuit, there is also a proposal to suppress by providing an air curtain generating unit on the upper surface of the rack (for example, see Patent Document 2).

  As another countermeasure, there is also a proposal for reducing local concentration and uneven thermal load by directly blowing cool air in an air supply chamber to a high-temperature part in a room using a duct (see, for example, Patent Document 3). . Furthermore, as an air conditioning system using a duct, a chamber that distributes the cold air supplied from the air conditioning unit to a plurality of air outlets is provided, and a blower motor damper that can change the air volume from the air outlets is provided in this chamber. A method has been proposed in which environmental information such as the above is detected and controlled to finely air-condition each area (see, for example, Patent Document 4).

  Furthermore, as another technique, a blowout device that blows air toward the indoor high-temperature part is provided, and by ensuring the amount of air blown to the indoor high-temperature part, a predetermined indoor space can be obtained without relying on means such as direct air cooling by duct piping. There is also a proposal to suppress the temperature rise.

JP 2006-64303 A JP 2005-308345 A JP 2001-272091 A JP 2005-127636 A

  However, in the air conditioning system proposed in Patent Document 1, hot air is guided by a guide that covers the entire server group and sucks hot air discharged from each server and guides it to the air inlet of the air conditioner. Therefore, it is necessary to align the surfaces where the exhaust vents are formed on the server side (equal height), and it is difficult to install in a server room where servers of various specifications are mixed, and installation of large-scale guides is required. Since it is necessary, there is a problem that the equipment cost is high.

  Moreover, in the conventional air conditioning system proposed in Patent Document 2, when the exhaust heat from the server staying near the ceiling of the server room is guided to the air inlet of the air conditioner, it is guided only by the suction force of the air conditioner. Therefore, there is a problem that the room temperature rises around the ceiling.

  Furthermore, in the method of directly supplying the cool air in the supply chamber of Patent Document 3 to the indoor high temperature section using the duct, the cool air can be surely blown to the equipment that generates heat, and the local concentration and heat load in the server room can be obtained. While uneven distribution can be reduced, since duct piping is required for each device, there is a problem that equipment costs are required. Moreover, since this apparatus alone cannot return the hot air from the server staying near the top of the server room to the air conditioner suction port, there is a problem that the thermal environment in the upper part of the room may not be improved.

  Moreover, in the system which detects environmental information, such as the temperature of an air-conditioning area proposed by patent document 4, and controls the amount of cold air supplied from an air-conditioning unit from several blower outlets which can control air volume, and performs air conditioning Although individual control for each area is possible, there is a problem that equipment cost is required because duct piping is required for each device. In addition, if this system is used to control the air conditioning from the underfloor air-conditioning system under floor air conditioning system, it is difficult to individually control the damper because there are blowout holes in the entire floor surface. When a blower that controls the rotational speed by detecting the static pressure signal and the passing wind speed is installed on the air conditioning unit side, the static pressure at all outlets will increase, so individual control for each area There is a problem that cannot be done.

  Furthermore, in the method in which each blowing device, which is the last mentioned method, detects the temperature and operates, the air conditioning balance of the entire room is broken, and the temperature in the area where the blowing device is not installed may rise. There are problems such as that there is a problem, and that this blowout device alone is insufficient to return the hot air staying near the top of the server room to the air inlet of the air conditioner, so that the thermal environment in the upper part of the room cannot be improved.

The present invention has been made to solve the above-described problem, and it is not necessary to lower the set temperature of the air conditioner more than necessary, and it is blown into the indoor space without the need for equipment such as duct piping. propose the air-conditioning outlet device system capable of an amount of cool air to the same, the air conditioning system comprising a heat transport system for moving the hot air staying at the top of the indoor space to the suction port of the air conditioner For the purpose.

In order to solve the above-described problems and achieve the object, a first air conditioning system of the present invention includes an air conditioner that sucks air from a suction port and blows cold air from a blower outlet, and an air outlet of the air conditioner that is formed under the floor. A plurality of blow holes formed in the floor, and a plurality of air supply chambers for blowing the cool air into the indoor space, and a plurality of air supply chambers provided on the floor for sucking the cold air in the air supply chamber and blowing it out to the indoor space According to the output of the air flow measuring unit, the air flow measuring unit for measuring the static pressure or the wind speed of the cold air in the air supply chamber, the temperature measuring unit for measuring the temperature of the air in the indoor space, and the output of the air flow measuring unit when the static pressure or velocity of the cool air in a predetermined position in the air supply chamber is below the threshold value, if the position the blowing device is operated in the vicinity and then blowing cold air of the air supply chamber into the indoor space In addition, when the temperature of the air at a predetermined position in the indoor space is equal to or higher than a threshold according to the output of the temperature measurement unit, the blowing device in the vicinity of the high temperature position is operated to And a blowing control unit for blowing cold air into the indoor space .

The second air conditioning system of the present invention, in the first air conditioning system of the present invention, when the temperature of the air at a predetermined position of the indoor space is equal to or higher than the threshold in accordance with the output of the temperature measuring part, a high temperature The apparatus further includes a conveyance control unit that operates the exhaust heat conveyance device in the vicinity of the position to return the accumulated hot air to the suction port of the air conditioner.

Furthermore, the third air conditioning system of the present invention is the first or second air conditioning system of the present invention, wherein a rack for storing the computer is provided in the indoor space, and the exhaust heat transfer device is disposed above the rack. It is provided.

Furthermore, the fourth air conditioning system of the present invention is the air conditioning system from the first present invention third any one of the waste heat transport apparatus, forcibly discharging the air in the rack to the rack And the air outlet is installed so as to be inclined toward the air conditioner.

The fifth air conditioning system of the present invention is characterized in that, in the third or fourth air conditioning system of the present invention, a guide is provided in the rack for guiding the hot air discharged by the computer to the air conditioner side. .

Further, the sixth air conditioning system of the present invention is the air conditioning system of the fifth aspect of the present invention is characterized in that blowing device is provided for discharging the hot air inside the rack to force the guide.

  In the server room having the above configuration, when the static pressure or the wind speed of the cool air at a predetermined location in the air supply chamber is equal to or lower than the threshold value, it is predicted that the cool air blown out from the location to the indoor space is reduced.

On the other hand, according to the air conditioning system of the first invention of the present invention, for the place where the static pressure or the wind speed of the cold air is below the threshold, the cold air at that place is forcibly used using the blowout device. Since it blows out to indoor space, the quantity of the cold air which blows off all the indoor places can be made the same. Further, the hot air staying in the upper part of the indoor space can be moved to the air inlet of the air conditioner, and the temperature management of the entire indoor space can be performed satisfactorily.

Further , according to the second air conditioning system of the present invention, when the temperature of the air at a predetermined position in the indoor space is equal to or higher than the threshold according to the output of the temperature measurement unit, the exhaust heat transfer device near the high temperature position is provided. Since the hot air staying in operation is returned to the air inlet of the air conditioner, it operates only when the exhaust heat transfer device is necessary, and the temperature management of all the spaces in the room can be performed economically.

Furthermore, according to the third air conditioning system of the present invention, the rack for storing the computer is provided in the indoor space, and the exhaust heat transfer device is provided at the upper part of the rack, so that it is discharged upward from the rack. The hot air can be efficiently moved to the air inlet of the air conditioner, and the temperature management of all the indoor spaces can be performed well economically.

Furthermore , according to the fourth air conditioning system of the present invention, the exhaust heat transfer device is provided so as to forcibly exhaust the air in the rack, and is installed so that the air outlet is inclined toward the air conditioner side. Therefore, the hot air in the rack can be more efficiently moved to the air inlet of the air conditioner, and the temperature management of all spaces in the room can be performed economically.

According to the fifth air conditioning system of the present invention, since the rack is provided with a guide for guiding the hot air discharged from the computer to the air conditioner side, the hot air released from the rack flows back to the rack. Therefore, the hot air in the rack can be more efficiently moved to the air inlet of the air conditioner, and the temperature management of all the spaces in the room can be favorably performed economically.

Further, according to the sixth air conditioning system of the present invention, the guide is provided with the blower for forcibly discharging the hot air in the rack, so that the hot air in the rack is more efficiently transferred to the air intake of the air conditioner. It is possible to economically control the temperature of all the spaces in the room economically.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the following embodiments, a computer room provided with an air-conditioning blower system and an exhaust heat transfer device system will be described by taking a server room as an example. The present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a perspective view of a server room adopting the under-floor air-conditioning system of Embodiment 1 of an air-conditioning blower system according to the present invention. The server room (computer room) has an indoor space 15 formed between the floor 11 and the ceiling 13. The floor 11 is a double structure floor. In the server room, a plurality of server racks (rack) 17 for storing servers (computers) are arranged and arranged. A plurality of server rack groups in which the plurality of server racks 17 are arranged are arranged in a plurality of rows (FIG. 1 shows only one row). Each server rack 17 sucks air from a suction port formed on the bottom surface and the front surface, and releases hot air as indicated by an arrow A from a blowout port formed on the top surface.

  An air conditioner 21 is installed along the side wall surface of the server room. The air conditioner 21 sucks air from a suction port 21a formed on the upper surface, and blows out air (cold air) conditioned from an air outlet (not shown) formed on the bottom surface. An air supply chamber 23 is formed under the floor of the floor 11 having a double structure. The air conditioner 21 blows out cool air into the air supply chamber 23.

  A portion of the floor 11 sandwiched between two rows of server rack groups is a passage portion. A large number of small-diameter blowout holes 11a are formed on the entire floor 11 of the passage portion. The cold air discharged from the air conditioner 21 into the air supply chamber 23 circulates in the air supply chamber 23 as shown by an arrow B, and then blows out from each outlet hole 11a to the indoor space 15 as shown by an arrow C. . The air supply chamber 23 under the double floor is also used as a wiring space to each server. A wiring 25 extending to each server is routed in the air supply chamber 23.

  A plurality of blowing devices 30 are provided at equal intervals on the floor 11 of the passage portion located far from the air conditioner 21. The blowing device 30 sucks the cold air in the air supply chamber 23 and blows it out into the indoor space 15 as indicated by an arrow D. The cold air blown out from the blowout holes 11 a formed in the floor 11 and the blowout device 30 lowers the temperature of the indoor space 15. On the other hand, the air warmed by the server rises and travels along the ceiling 13 toward the air inlet 21a of the air conditioner 21 along the ceiling 13 as indicated by an arrow E.

  FIG. 2 is a side view showing details of the blowing device 30. The blow-out device 30 includes a motor 31 and a fan 32 attached to the drive shaft of the motor 31, and sucks cool air in the air supply chamber 23 from a suction port 33 formed on the lower surface, and a blow-out port formed on the upper surface. 34 blows out into the indoor space 15. A control device (blowing control unit) 40 that controls the blowing device 30 is provided at a side portion of the blowing device 30. A pressure sensor (airflow measuring unit) 41 is provided on the side end surface of the control device 40 so as to project. The pressure sensor 41 measures the static pressure of the cold air in the air supply chamber 23 and outputs it to the control device 40.

  In response to the output of the pressure sensor 41, the control device 40 operates the blowing device 30 at that position in the air supply chamber 23 when the static pressure of the cold air at a predetermined position in the air supply chamber 23 is equal to or less than a threshold value. The cold air is blown into the indoor space 15. When the static pressure in the air supply chamber 23 greatly falls below the threshold value according to the output of the pressure sensor 41, the control device 40 increases the air volume by increasing the rotation of the fan 32 and slightly reduces the threshold value. When descending, the rotation of the fan 32 is slowed to reduce the air volume.

  As described above, according to the air-conditioning blower system of the present embodiment, the air conditioner 21 that sucks air from the suction port 21a and blows cold air from the blower outlet, and is blown out from the blower outlet of the air conditioner 21 that is formed under the floor. The cool air is circulated and the cool air is blown out into the indoor space 15 from a large number of blow holes 11 a formed in the floor 11. The cool air in the air supply chamber 23 provided on the floor 11 is sucked into the indoor space 15. A plurality of blowing devices 30 that blow out, a pressure sensor 41 that measures the static pressure of the cold air in the air supply chamber 23, and the static pressure of the cold air at a predetermined position in the air supply chamber 23 according to the output of the pressure sensor 41 is a threshold value. At the following time, it has a control device 40 that operates the blowing device 30 in the vicinity of the position to blow the cold air in the air supply chamber 23 into the indoor space 15.

  Each of the blow-out devices 30 includes a pressure sensor (air flow measurement unit) 41 that measures the static pressure of the air-conditioned airflow flowing in the air supply chamber 23 and a control device that controls the blow-out static pressure from the measurement result of the pressure sensor 41 (blow-out). 40), the pressure sensor 41 detects the pressure loss of the air-conditioning airflow in the lower floor air supply chamber 23, and controls the rotation speed of the fan 32 of the blow-out device 30 accordingly to supply the air. The static discharge pressure of the cold air from the inside of the air chamber 23 is adjusted, and the amount of the cold air blown out throughout the indoor space 15 becomes the same. Thereby, the temperature deviation of the indoor space 15 is eliminated, and the efficient operation of the air conditioner 21 becomes possible. In addition, when it is not necessary to strictly perform control according to the pressure loss in the air supply chamber 23, the blow-out device 30 may be set to a constant blown air volume such as strong, medium, and weak. The form of the blowing device 30 is not limited to that shown in FIG. 2, and a blower having a configuration in which small propeller fans are arranged, a sirocco fan, or a crossflow fan may be used.

  In the present embodiment, the pressure sensor 41 is provided as an airflow measuring unit, the static pressure of the air in the air supply chamber 23 is measured, and when the static pressure is equal to or less than the threshold value, the blowing device at that position is It is operating. However, the purpose of static pressure measurement is to investigate the stagnation of cold air. To investigate this stagnation of cold air, not only the static pressure of cold air, but also, for example, measure the wind speed of cold air and perform it based on it. Also good. When the blower device 30 is controlled by the cold wind speed, the blower device 30 at that position is operated when the wind speed falls below a predetermined threshold.

Embodiment 2. FIG.
FIG. 3 is a perspective view of a server room adopting the under-floor air conditioning system of the second embodiment of the air-conditioning blower system according to the present invention. In the present embodiment, the blowing device is a blowing device 30B configured by an elongated cross-flow fan. Other configurations are the same as those of the first embodiment.

  According to the air-conditioning blower system having such a configuration, the effect similar to that of the air-conditioning blower system of the first embodiment can be obtained, and the amount of protrusion of the blower 30B into the air supply chamber 23 can be reduced. The stagnation of the cool air in the air supply chamber 23 is further reduced, and the amount of the cool air blown out in all places in the room can be made the same with less electric power.

Embodiment 3 FIG.
FIG. 4 is a perspective view of a server room adopting the under-floor air-conditioning system of Embodiment 3 of the air-conditioning blower system according to the present invention. In the present embodiment, as shown in FIG. 4, temperature sensors (temperature measurement units) 43 that detect temperatures at a plurality of locations in the room are provided. The temperature sensor 43 is connected to the blowing device 30 via a cable 44. Further, the blowing device 30 is connected to the air conditioner 21 by a cable 45. As with the first embodiment, the blowing device 30 is provided with a blowing control unit (not shown). Other configurations are the same as those of the first embodiment.

  In the present embodiment, the amount of cool air blown from the air conditioner 21 and temperature information at a plurality of locations in the room are transmitted to the blowout control unit (not shown) through the cables 44 and 45. Then, the blowout control unit blows out the vicinity of the high temperature position when the temperature of the air at a predetermined position in the indoor space 15 is equal to or higher than the threshold according to the amount of cold air blown from the air conditioner 21 and the output of the temperature sensor 43. The device 30 is operated to blow out cool air in the air supply chamber 23 into the indoor space 15. Note that a blowout control unit (not shown) may perform control according to the output of the temperature sensor 43 in parallel with the control by the static pressure or the wind speed in the first embodiment.

  According to the present embodiment, the temperature of the predetermined area in the indoor space 15 does not rise more than expected, and the operation is performed while adjusting the discharge air volume for the local concentration of hot air and the uneven distribution of heat load. It becomes possible, and indoor air conditioning can be performed efficiently.

  The form of the blowing device 30 is not limited to that shown in FIG. 2 as in the first embodiment, but may be a blower having a configuration in which small propeller fans are arranged, or may be equipped with a sirocco fan. It may be equipped with a cross flow fan.

Embodiment 4 FIG.
FIG. 5 is a perspective view of a server room employing the air conditioning system of Embodiment 4 of the exhaust heat transfer apparatus system according to the present invention. In the present embodiment, as shown in FIG. 5, an exhaust heat transfer device 50 is provided above the indoor space 15 that is air-conditioned by the air conditioner 21. The exhaust heat transfer device 50 moves the hot air staying near the ceiling 13 to the suction port 21 a of the air conditioner 21.

  In the server room, the rack 17 on which the server is mounted exhausts the internal hot air upward or backward in order to lower the temperature in the rack. In the present embodiment, an operation of efficiently returning the hot air discharged from the rack 17 to the suction port 21a of the air conditioner 21 is performed. The exhaust heat transfer device 50 is installed on the ceiling 13 at a position away from the air conditioner 21 among the ceilings 13 of the passage portion surrounded by the rack groups so as to be sandwiched between adjacent rack group rows.

  If the installation height of the exhaust heat transfer device 50 is installed 0.5 m above the upper surface of the rack 17, the temperature rise near the rack 17 can be most effectively suppressed. At this time, the air flow F generated by the exhaust heat transfer device 50 is formed from the region where the hot air stays in the upper part of the passage space toward the suction port 21a of the air conditioner 21. Then, the blowout wind speed is adjusted so that the airflow wind speed in the vicinity of the suction port 21a of the air conditioner 21 that is the destination is 0.5 m / s to 1.0 m / s in a state where there is no influence of disturbance.

  If the airflow at the destination is weak, one or more airflows are provided between the first exhaust heat transfer device 50 provided at a position away from the air conditioner 21 and the suction port 21a of the air conditioner 21. A stand exhaust heat transfer device 50 is installed so that airflow of a predetermined strength can be formed.

  In this way, by installing the exhaust heat transfer device 50 in the vicinity of the ceiling 13 near the rack 17 in a passage where the influence of the exhaust heat flow from the rack 17 is small, the air remaining in the vicinity of the rack 17 is removed from the air conditioner. It is possible to efficiently return to the 21 suction ports 21a. As a result, it is possible to suppress a shortcut in which hot air flows back to the server, and it is also possible to suppress a short circuit of cool air in which the cool air of the air conditioner 21 returns directly to the air conditioner 21. Driving is possible.

Embodiment 5 FIG.
In addition to the exhaust heat transfer device system of the fourth embodiment, the exhaust heat transfer device system of the present embodiment includes a temperature detection unit (not shown) that is provided at a position away from the air conditioner 21 and detects the temperature, and this temperature. A control device (transport control unit) that performs ON-OFF control of the exhaust heat transport device 50 based on the output of the detection unit is provided. The control device (conveyance control unit) is one or a plurality of waste heat transfer devices installed in an arbitrary target area only when the temperature measured by the temperature detection unit becomes a certain value or more. 50 operations are performed. This is because the air conditioner 21 is not in operation, but when the temperature measured by the temperature detector is above a certain level, it is determined that the air-conditioning air current has short-circuited in the vicinity where the air conditioner 21 is installed. In addition, although the air conditioner 21 is operating, if the temperature measured by the temperature detection unit is equal to or higher than a certain level, it can be determined that the heat generated from the rack 17 on which the server is mounted has increased. On the other hand, by returning the hot air from the rack 17 on which the server is mounted to the suction port 21a of the air conditioner 21, the air conditioning efficiency is improved. In this way, it is possible to operate more efficiently by determining the air conditioning status from the indoor temperature and operating the exhaust heat transfer device 50 accordingly.

Embodiment 6 FIG.
FIG. 6 is a perspective view of a server room adopting the air conditioning system of Embodiment 6 of the exhaust heat transfer apparatus system according to the present invention. In the present embodiment, as shown in FIG. 6, an exhaust heat transfer device 50 </ b> B is provided above the rack 17 on which the server is mounted. Then, the second and third exhaust heat transfer devices 50 are installed between the first exhaust heat transfer device 50B farthest from the air conditioner 21 and the suction port 21a of the air conditioner 21, and the hot air is removed. I am trying to carry it. The hot air inside the rack 17 is blown upward from the upper part of the rack 17 on which the server is mounted. The exhaust heat transfer device 50B is arranged at regular intervals so as to overcome this blown hot air. The hot air staying with the ceiling is forcibly returned to the air inlet 21a of the air conditioner 21. The exhaust heat transfer device 50B may be attached after the rack 17 is installed in the server room, or may be installed in the rack 17 when the rack is manufactured and installed in the server room as a rack with an exhaust heat transfer device.

Embodiment 7 FIG.
FIG. 7 is a perspective view of a server room adopting the air conditioning system of Embodiment 7 of the exhaust heat transfer apparatus system according to the present invention. In the present embodiment, as shown in FIG. 7, the upper portion of the rack 17 is covered with a cover 53, and an exhaust heat transfer device 50 </ b> C is provided at the opening of the cover 53. The exhaust heat transfer device 50C is installed obliquely at a predetermined angle so that the airflow blowing direction of the exhaust heat transfer device 50C installed in the opening is directed to the suction port 21a of the air conditioner 21. As a result, the hot air in the rack 17 is attracted and the exhaust heat flow is directed to the suction port 21a of the air conditioner 21, so that the hot air is prevented from flowing around the rack 17 and the indoor air conditioning is performed more efficiently. Can be.

Embodiment 8 FIG.
FIG. 8 is a perspective view of a server room adopting the air conditioning system of Embodiment 8 of the exhaust heat transfer apparatus system according to the present invention. In the present embodiment, as shown in FIG. 8, the exhaust heat transfer device 50 </ b> D is an upper portion of the rack 17 as an exhaust heat fan combined exhaust heat transfer device having a function of an exhaust heat fan attached to the upper portion of the normal rack 17. Is provided. The exhaust heat transfer device 50 </ b> D blows hot air inside the rack 17 obliquely upward from the rack 17. And the hot air which blows off is made to become the suction inlet 21a direction of the air conditioner 21. FIG. Thereby, it is not necessary to separately provide a waste heat transfer device, and an inexpensive configuration can be achieved.

Embodiment 9 FIG.
FIG. 9 is a perspective view of a server room adopting the air conditioning system of Embodiment 9 of the exhaust heat transfer apparatus system according to the present invention. In the present embodiment, as shown in FIG. 9, a guide 57 that guides the hot air in the rack 17 to be blown obliquely upward is attached to the upper portion of the rack 17. Further, an exhaust heat transfer device 50E having a function of an exhaust heat fan is provided at the top of the rack 17. In this way, by providing the exhaust heat transfer device 50E that is also used as the exhaust heat fan attached to the upper portion of the rack 17 so as to cooperate with the guide 57, it is not necessary to separately provide the exhaust heat transfer device, and the configuration is inexpensive. can do.

Embodiment 10 FIG.
FIG. 10 is a perspective view of a server room adopting the underfloor air conditioning system of an air conditioning system according to Embodiment 10 of the present invention. In the air conditioning system of the present embodiment, as shown in FIG. 10, the air conditioning blower system of the first embodiment shown in FIG. 1 and the exhaust heat transfer apparatus system of the fourth embodiment shown in FIG. And are combined. As a result, it becomes possible to forcibly generate air circulation over the entire server room, thereby suppressing the short circuit of the cold air near the air conditioner 21, eliminating the shortage of cold air blowing in the area away from the air conditioner 21, It is possible to prevent hot air from staying at the top of the rack 17 and to suppress hot air shortcuts near the rack 17, and to efficiently operate the air conditioner 21.

  As a result of actually measuring the temperature when the system is stopped and when the system is operating in the passage where the heat load is unevenly distributed in the server room where the air conditioning system of this embodiment is adopted, the average temperature is 29.9 ° C. to 26.26 ° C. At 2 ° C, it can be reduced from 33.8 ° C to 25.7 ° C at a certain point. Furthermore, when the system is operating compared to when the system is stopped, the room temperature 15 is well conditioned and it is confirmed that there is no stagnation of hot air did it.

  As described above, the air-conditioning blower system according to the present invention is suitable for application to a server room in which an underfloor air-conditioning system is adopted, for example, provided with a rack for storing computers. It is optimum to be applied to a server room in which high integration is advanced and the number of wirings to server devices routed in the air supply chamber is increased and the flow path in the air supply chamber is narrowed. In addition, the exhaust heat transfer device system according to the present invention is optimally applied to a server room in which, for example, many racks for storing computers are installed and hot air is stagnated in the upper part of the indoor space.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of Embodiment 1 of the blowing apparatus system for air conditioning which concerns on this invention. It is a side view which shows the detail of the blowing apparatus of FIG. It is a perspective view of Embodiment 2 of the blowing apparatus system for air conditioning which concerns on this invention. It is a perspective view of Embodiment 3 of the blowing apparatus system for air conditioning which concerns on this invention. It is a perspective view of Embodiment 4 of the waste heat transfer apparatus system which concerns on this invention. It is a perspective view of Embodiment 6 of the waste heat conveyance apparatus system which concerns on this invention. It is a perspective view of Embodiment 7 of the waste heat conveying apparatus system which concerns on this invention. It is a perspective view of Embodiment 8 of the waste heat transfer apparatus system which concerns on this invention. It is a perspective view of Embodiment 9 of the waste heat transfer apparatus system which concerns on this invention. It is a perspective view of Embodiment 10 of the air conditioning system which concerns on this invention. It is a perspective view of the conventional server room of an under floor air-conditioning system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Floor 11a Blow-out hole 13 Ceiling 15 Indoor space 17 Server rack 21 Air conditioner 21a Air-conditioner suction port 23 Air supply chamber 25 Wiring 30, 30B Blow-out device 31 Motor 32 Fan 33 Blow-out device suction port 34 Blow-out port 40 Control device (blowing control unit)
41 Pressure sensor (Airflow measurement unit)
43 Temperature sensor (temperature measurement unit)
44, 45 Cable 50, 50B, 50C, 50D, 50E Waste heat transfer device 53 Cover 57 Guide

Claims (6)

An air conditioner that sucks in air from the air inlet and blows out cold air from the air outlet;
An air supply chamber that circulates cold air blown out from the air outlet of the air conditioner that is formed under the floor and blows cold air into the indoor space from a number of blow holes formed in the floor;
A plurality of blow-out devices provided on the floor for sucking cold air in the air supply chamber and blowing it out into an indoor space;
An airflow measurement unit for measuring the static pressure or wind speed of the cold air in the air supply chamber;
A temperature measuring unit for measuring the temperature of air in the indoor space;
When the static pressure or the wind speed of the cool air at a predetermined position in the air supply chamber is equal to or lower than the threshold according to the output of the air flow measurement unit, the air blower near the position is operated to cool the air in the air supply chamber. Is blown into the indoor space, and when the temperature of the air at a predetermined position in the indoor space is equal to or higher than a threshold according to the output of the temperature measuring unit, the blowing device in the vicinity of the high temperature position is operated. An air-conditioning system comprising: a blow control unit that blows out cool air in the air supply chamber into the indoor space . When the temperature of the air at a predetermined position in the indoor space is equal to or higher than a threshold according to the output of the temperature measurement unit, the waste heat transfer device near the position where the temperature is high is operated to The air conditioning system according to claim 1 , further comprising a conveyance control unit that returns to the air inlet of the air conditioner . A rack for storing a computer is provided in the indoor space,
The air conditioning system according to claim 1 or 2 , wherein the exhaust heat transfer device is provided in an upper portion of the rack. The exhaust heat transport apparatus according to claim 1, wherein the rack forcibly provided to discharge the air in the rack, and the air outlet is installed to be inclined to the air conditioner-side 4. The air conditioning system according to any one of items 1 to 3 . The air conditioning system according to claim 3 or 4 , wherein a guide for guiding the hot air discharged from the computer to the air conditioner side is provided in the rack. The air conditioning system according to claim 5 , wherein the guide is provided with a blower that forcibly discharges hot air in the rack.

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